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

   1 /*
   2  * Copyright (C) 2005 - 2013 Emulex
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #include <linux/prefetch.h>
  19 #include <linux/module.h>
  20 #include "be.h"
  21 #include "be_cmds.h"
  22 #include <asm/div64.h>
  23 #include <linux/aer.h>
  24 #include <linux/if_bridge.h>
  25 #include <net/busy_poll.h>
  26
  27 MODULE_VERSION(DRV_VER);
  28 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  29 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  30 MODULE_AUTHOR("Emulex Corporation");
  31 MODULE_LICENSE("GPL");
  32
  33 static unsigned int num_vfs;
  34 module_param(num_vfs, uint, S_IRUGO);
  35 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
  36
  37 static ushort rx_frag_size = 2048;
  38 module_param(rx_frag_size, ushort, S_IRUGO);
  39 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  40
  41 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  42         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  43         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  44         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  45         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  46         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
  47         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
  48         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
  49         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
  50         { 0 }
  51 };
  52 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  53 /* UE Status Low CSR */
  54 static const char * const ue_status_low_desc[] = {
  55         "CEV",
  56         "CTX",
  57         "DBUF",
  58         "ERX",
  59         "Host",
  60         "MPU",
  61         "NDMA",
  62         "PTC ",
  63         "RDMA ",
  64         "RXF ",
  65         "RXIPS ",
  66         "RXULP0 ",
  67         "RXULP1 ",
  68         "RXULP2 ",
  69         "TIM ",
  70         "TPOST ",
  71         "TPRE ",
  72         "TXIPS ",
  73         "TXULP0 ",
  74         "TXULP1 ",
  75         "UC ",
  76         "WDMA ",
  77         "TXULP2 ",
  78         "HOST1 ",
  79         "P0_OB_LINK ",
  80         "P1_OB_LINK ",
  81         "HOST_GPIO ",
  82         "MBOX ",
  83         "AXGMAC0",
  84         "AXGMAC1",
  85         "JTAG",
  86         "MPU_INTPEND"
  87 };
  88 /* UE Status High CSR */
  89 static const char * const ue_status_hi_desc[] = {
  90         "LPCMEMHOST",
  91         "MGMT_MAC",
  92         "PCS0ONLINE",
  93         "MPU_IRAM",
  94         "PCS1ONLINE",
  95         "PCTL0",
  96         "PCTL1",
  97         "PMEM",
  98         "RR",
  99         "TXPB",
 100         "RXPP",
 101         "XAUI",
 102         "TXP",
 103         "ARM",
 104         "IPC",
 105         "HOST2",
 106         "HOST3",
 107         "HOST4",
 108         "HOST5",
 109         "HOST6",
 110         "HOST7",
 111         "HOST8",
 112         "HOST9",
 113         "NETC",
 114         "Unknown",
 115         "Unknown",
 116         "Unknown",
 117         "Unknown",
 118         "Unknown",
 119         "Unknown",
 120         "Unknown",
 121         "Unknown"
 122 };
 123
 124 /* Is BE in a multi-channel mode */
 125 static inline bool be_is_mc(struct be_adapter *adapter) {
 126         return (adapter->function_mode & FLEX10_MODE ||
 127                 adapter->function_mode & VNIC_MODE ||
 128                 adapter->function_mode & UMC_ENABLED);
 129 }
 130
 131 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 132 {
 133         struct be_dma_mem *mem = &q->dma_mem;
 134         if (mem->va) {
 135                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 136                                   mem->dma);
 137                 mem->va = NULL;
 138         }
 139 }
 140
 141 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
 142                 u16 len, u16 entry_size)
 143 {
 144         struct be_dma_mem *mem = &q->dma_mem;
 145
 146         memset(q, 0, sizeof(*q));
 147         q->len = len;
 148         q->entry_size = entry_size;
 149         mem->size = len * entry_size;
 150         mem->va = dma_zalloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
 151                                       GFP_KERNEL);
 152         if (!mem->va)
 153                 return -ENOMEM;
 154         return 0;
 155 }
 156
 157 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
 158 {
 159         u32 reg, enabled;
 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_intr_set(struct be_adapter *adapter, bool enable)
 177 {
 178         int status = 0;
 179
 180         /* On lancer interrupts can't be controlled via this register */
 181         if (lancer_chip(adapter))
 182                 return;
 183
 184         if (adapter->eeh_error)
 185                 return;
 186
 187         status = be_cmd_intr_set(adapter, enable);
 188         if (status)
 189                 be_reg_intr_set(adapter, enable);
 190 }
 191
 192 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 193 {
 194         u32 val = 0;
 195         val |= qid & DB_RQ_RING_ID_MASK;
 196         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 197
 198         wmb();
 199         iowrite32(val, adapter->db + DB_RQ_OFFSET);
 200 }
 201
 202 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
 203                           u16 posted)
 204 {
 205         u32 val = 0;
 206         val |= txo->q.id & DB_TXULP_RING_ID_MASK;
 207         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 208
 209         wmb();
 210         iowrite32(val, adapter->db + txo->db_offset);
 211 }
 212
 213 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
 214                 bool arm, bool clear_int, u16 num_popped)
 215 {
 216         u32 val = 0;
 217         val |= qid & DB_EQ_RING_ID_MASK;
 218         val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
 219                         DB_EQ_RING_ID_EXT_MASK_SHIFT);
 220
 221         if (adapter->eeh_error)
 222                 return;
 223
 224         if (arm)
 225                 val |= 1 << DB_EQ_REARM_SHIFT;
 226         if (clear_int)
 227                 val |= 1 << DB_EQ_CLR_SHIFT;
 228         val |= 1 << DB_EQ_EVNT_SHIFT;
 229         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 230         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 231 }
 232
 233 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 234 {
 235         u32 val = 0;
 236         val |= qid & DB_CQ_RING_ID_MASK;
 237         val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
 238                         DB_CQ_RING_ID_EXT_MASK_SHIFT);
 239
 240         if (adapter->eeh_error)
 241                 return;
 242
 243         if (arm)
 244                 val |= 1 << DB_CQ_REARM_SHIFT;
 245         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 246         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 247 }
 248
 249 static int be_mac_addr_set(struct net_device *netdev, void *p)
 250 {
 251         struct be_adapter *adapter = netdev_priv(netdev);
 252         struct device *dev = &adapter->pdev->dev;
 253         struct sockaddr *addr = p;
 254         int status;
 255         u8 mac[ETH_ALEN];
 256         u32 old_pmac_id = adapter->pmac_id[0], curr_pmac_id = 0;
 257
 258         if (!is_valid_ether_addr(addr->sa_data))
 259                 return -EADDRNOTAVAIL;
 260
 261         /* The PMAC_ADD cmd may fail if the VF doesn't have FILTMGMT
 262          * privilege or if PF did not provision the new MAC address.
 263          * On BE3, this cmd will always fail if the VF doesn't have the
 264          * FILTMGMT privilege. This failure is OK, only if the PF programmed
 265          * the MAC for the VF.
 266          */
 267         status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 268                                  adapter->if_handle, &adapter->pmac_id[0], 0);
 269         if (!status) {
 270                 curr_pmac_id = adapter->pmac_id[0];
 271
 272                 /* Delete the old programmed MAC. This call may fail if the
 273                  * old MAC was already deleted by the PF driver.
 274                  */
 275                 if (adapter->pmac_id[0] != old_pmac_id)
 276                         be_cmd_pmac_del(adapter, adapter->if_handle,
 277                                         old_pmac_id, 0);
 278         }
 279
 280         /* Decide if the new MAC is successfully activated only after
 281          * querying the FW
 282          */
 283         status = be_cmd_get_active_mac(adapter, curr_pmac_id, mac);
 284         if (status)
 285                 goto err;
 286
 287         /* The MAC change did not happen, either due to lack of privilege
 288          * or PF didn't pre-provision.
 289          */
 290         if (memcmp(addr->sa_data, mac, ETH_ALEN)) {
 291                 status = -EPERM;
 292                 goto err;
 293         }
 294
 295         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 296         dev_info(dev, "MAC address changed to %pM\n", mac);
 297         return 0;
 298 err:
 299         dev_warn(dev, "MAC address change to %pM failed\n", addr->sa_data);
 300         return status;
 301 }
 302
 303 /* BE2 supports only v0 cmd */
 304 static void *hw_stats_from_cmd(struct be_adapter *adapter)
 305 {
 306         if (BE2_chip(adapter)) {
 307                 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
 308
 309                 return &cmd->hw_stats;
 310         } else if (BE3_chip(adapter)) {
 311                 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
 312
 313                 return &cmd->hw_stats;
 314         } else {
 315                 struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
 316
 317                 return &cmd->hw_stats;
 318         }
 319 }
 320
 321 /* BE2 supports only v0 cmd */
 322 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
 323 {
 324         if (BE2_chip(adapter)) {
 325                 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 326
 327                 return &hw_stats->erx;
 328         } else if (BE3_chip(adapter)) {
 329                 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 330
 331                 return &hw_stats->erx;
 332         } else {
 333                 struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
 334
 335                 return &hw_stats->erx;
 336         }
 337 }
 338
 339 static void populate_be_v0_stats(struct be_adapter *adapter)
 340 {
 341         struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 342         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 343         struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
 344         struct be_port_rxf_stats_v0 *port_stats =
 345                                         &rxf_stats->port[adapter->port_num];
 346         struct be_drv_stats *drvs = &adapter->drv_stats;
 347
 348         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 349         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 350         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 351         drvs->rx_control_frames = port_stats->rx_control_frames;
 352         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 353         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 354         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 355         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 356         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 357         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 358         drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
 359         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 360         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 361         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 362         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 363         drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
 364         drvs->rx_dropped_header_too_small =
 365                 port_stats->rx_dropped_header_too_small;
 366         drvs->rx_address_filtered =
 367                                         port_stats->rx_address_filtered +
 368                                         port_stats->rx_vlan_filtered;
 369         drvs->rx_alignment_symbol_errors =
 370                 port_stats->rx_alignment_symbol_errors;
 371
 372         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 373         drvs->tx_controlframes = port_stats->tx_controlframes;
 374
 375         if (adapter->port_num)
 376                 drvs->jabber_events = rxf_stats->port1_jabber_events;
 377         else
 378                 drvs->jabber_events = rxf_stats->port0_jabber_events;
 379         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 380         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 381         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 382         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 383         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 384         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 385         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 386 }
 387
 388 static void populate_be_v1_stats(struct be_adapter *adapter)
 389 {
 390         struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 391         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 392         struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
 393         struct be_port_rxf_stats_v1 *port_stats =
 394                                         &rxf_stats->port[adapter->port_num];
 395         struct be_drv_stats *drvs = &adapter->drv_stats;
 396
 397         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 398         drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
 399         drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
 400         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 401         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 402         drvs->rx_control_frames = port_stats->rx_control_frames;
 403         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 404         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 405         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 406         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 407         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 408         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 409         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 410         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 411         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 412         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 413         drvs->rx_dropped_header_too_small =
 414                 port_stats->rx_dropped_header_too_small;
 415         drvs->rx_input_fifo_overflow_drop =
 416                 port_stats->rx_input_fifo_overflow_drop;
 417         drvs->rx_address_filtered = port_stats->rx_address_filtered;
 418         drvs->rx_alignment_symbol_errors =
 419                 port_stats->rx_alignment_symbol_errors;
 420         drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
 421         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 422         drvs->tx_controlframes = port_stats->tx_controlframes;
 423         drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
 424         drvs->jabber_events = port_stats->jabber_events;
 425         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 426         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 427         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 428         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 429         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 430         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 431         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 432 }
 433
 434 static void populate_be_v2_stats(struct be_adapter *adapter)
 435 {
 436         struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
 437         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 438         struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
 439         struct be_port_rxf_stats_v2 *port_stats =
 440                                         &rxf_stats->port[adapter->port_num];
 441         struct be_drv_stats *drvs = &adapter->drv_stats;
 442
 443         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 444         drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
 445         drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
 446         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 447         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 448         drvs->rx_control_frames = port_stats->rx_control_frames;
 449         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 450         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 451         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 452         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 453         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 454         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 455         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 456         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 457         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 458         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 459         drvs->rx_dropped_header_too_small =
 460                 port_stats->rx_dropped_header_too_small;
 461         drvs->rx_input_fifo_overflow_drop =
 462                 port_stats->rx_input_fifo_overflow_drop;
 463         drvs->rx_address_filtered = port_stats->rx_address_filtered;
 464         drvs->rx_alignment_symbol_errors =
 465                 port_stats->rx_alignment_symbol_errors;
 466         drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
 467         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 468         drvs->tx_controlframes = port_stats->tx_controlframes;
 469         drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
 470         drvs->jabber_events = port_stats->jabber_events;
 471         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 472         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 473         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 474         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 475         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 476         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 477         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 478         if (be_roce_supported(adapter))  {
 479                 drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
 480                 drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
 481                 drvs->rx_roce_frames = port_stats->roce_frames_received;
 482                 drvs->roce_drops_crc = port_stats->roce_drops_crc;
 483                 drvs->roce_drops_payload_len =
 484                         port_stats->roce_drops_payload_len;
 485         }
 486 }
 487
 488 static void populate_lancer_stats(struct be_adapter *adapter)
 489 {
 490
 491         struct be_drv_stats *drvs = &adapter->drv_stats;
 492         struct lancer_pport_stats *pport_stats =
 493                                         pport_stats_from_cmd(adapter);
 494
 495         be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
 496         drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
 497         drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
 498         drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
 499         drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
 500         drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
 501         drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
 502         drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
 503         drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
 504         drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
 505         drvs->rx_dropped_tcp_length =
 506                                 pport_stats->rx_dropped_invalid_tcp_length;
 507         drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
 508         drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
 509         drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
 510         drvs->rx_dropped_header_too_small =
 511                                 pport_stats->rx_dropped_header_too_small;
 512         drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 513         drvs->rx_address_filtered =
 514                                         pport_stats->rx_address_filtered +
 515                                         pport_stats->rx_vlan_filtered;
 516         drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
 517         drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 518         drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
 519         drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
 520         drvs->jabber_events = pport_stats->rx_jabbers;
 521         drvs->forwarded_packets = pport_stats->num_forwards_lo;
 522         drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
 523         drvs->rx_drops_too_many_frags =
 524                                 pport_stats->rx_drops_too_many_frags_lo;
 525 }
 526
 527 static void accumulate_16bit_val(u32 *acc, u16 val)
 528 {
 529 #define lo(x)                   (x & 0xFFFF)
 530 #define hi(x)                   (x & 0xFFFF0000)
 531         bool wrapped = val < lo(*acc);
 532         u32 newacc = hi(*acc) + val;
 533
 534         if (wrapped)
 535                 newacc += 65536;
 536         ACCESS_ONCE(*acc) = newacc;
 537 }
 538
 539 static void populate_erx_stats(struct be_adapter *adapter,
 540                         struct be_rx_obj *rxo,
 541                         u32 erx_stat)
 542 {
 543         if (!BEx_chip(adapter))
 544                 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
 545         else
 546                 /* below erx HW counter can actually wrap around after
 547                  * 65535. Driver accumulates a 32-bit value
 548                  */
 549                 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
 550                                      (u16)erx_stat);
 551 }
 552
 553 void be_parse_stats(struct be_adapter *adapter)
 554 {
 555         struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
 556         struct be_rx_obj *rxo;
 557         int i;
 558         u32 erx_stat;
 559
 560         if (lancer_chip(adapter)) {
 561                 populate_lancer_stats(adapter);
 562         } else {
 563                 if (BE2_chip(adapter))
 564                         populate_be_v0_stats(adapter);
 565                 else if (BE3_chip(adapter))
 566                         /* for BE3 */
 567                         populate_be_v1_stats(adapter);
 568                 else
 569                         populate_be_v2_stats(adapter);
 570
 571                 /* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
 572                 for_all_rx_queues(adapter, rxo, i) {
 573                         erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
 574                         populate_erx_stats(adapter, rxo, erx_stat);
 575                 }
 576         }
 577 }
 578
 579 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
 580                                         struct rtnl_link_stats64 *stats)
 581 {
 582         struct be_adapter *adapter = netdev_priv(netdev);
 583         struct be_drv_stats *drvs = &adapter->drv_stats;
 584         struct be_rx_obj *rxo;
 585         struct be_tx_obj *txo;
 586         u64 pkts, bytes;
 587         unsigned int start;
 588         int i;
 589
 590         for_all_rx_queues(adapter, rxo, i) {
 591                 const struct be_rx_stats *rx_stats = rx_stats(rxo);
 592                 do {
 593                         start = u64_stats_fetch_begin_bh(&rx_stats->sync);
 594                         pkts = rx_stats(rxo)->rx_pkts;
 595                         bytes = rx_stats(rxo)->rx_bytes;
 596                 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
 597                 stats->rx_packets += pkts;
 598                 stats->rx_bytes += bytes;
 599                 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
 600                 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
 601                                         rx_stats(rxo)->rx_drops_no_frags;
 602         }
 603
 604         for_all_tx_queues(adapter, txo, i) {
 605                 const struct be_tx_stats *tx_stats = tx_stats(txo);
 606                 do {
 607                         start = u64_stats_fetch_begin_bh(&tx_stats->sync);
 608                         pkts = tx_stats(txo)->tx_pkts;
 609                         bytes = tx_stats(txo)->tx_bytes;
 610                 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
 611                 stats->tx_packets += pkts;
 612                 stats->tx_bytes += bytes;
 613         }
 614
 615         /* bad pkts received */
 616         stats->rx_errors = drvs->rx_crc_errors +
 617                 drvs->rx_alignment_symbol_errors +
 618                 drvs->rx_in_range_errors +
 619                 drvs->rx_out_range_errors +
 620                 drvs->rx_frame_too_long +
 621                 drvs->rx_dropped_too_small +
 622                 drvs->rx_dropped_too_short +
 623                 drvs->rx_dropped_header_too_small +
 624                 drvs->rx_dropped_tcp_length +
 625                 drvs->rx_dropped_runt;
 626
 627         /* detailed rx errors */
 628         stats->rx_length_errors = drvs->rx_in_range_errors +
 629                 drvs->rx_out_range_errors +
 630                 drvs->rx_frame_too_long;
 631
 632         stats->rx_crc_errors = drvs->rx_crc_errors;
 633
 634         /* frame alignment errors */
 635         stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
 636
 637         /* receiver fifo overrun */
 638         /* drops_no_pbuf is no per i/f, it's per BE card */
 639         stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
 640                                 drvs->rx_input_fifo_overflow_drop +
 641                                 drvs->rx_drops_no_pbuf;
 642         return stats;
 643 }
 644
 645 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
 646 {
 647         struct net_device *netdev = adapter->netdev;
 648
 649         if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
 650                 netif_carrier_off(netdev);
 651                 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
 652         }
 653
 654         if ((link_status & LINK_STATUS_MASK) == LINK_UP)
 655                 netif_carrier_on(netdev);
 656         else
 657                 netif_carrier_off(netdev);
 658 }
 659
 660 static void be_tx_stats_update(struct be_tx_obj *txo,
 661                         u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
 662 {
 663         struct be_tx_stats *stats = tx_stats(txo);
 664
 665         u64_stats_update_begin(&stats->sync);
 666         stats->tx_reqs++;
 667         stats->tx_wrbs += wrb_cnt;
 668         stats->tx_bytes += copied;
 669         stats->tx_pkts += (gso_segs ? gso_segs : 1);
 670         if (stopped)
 671                 stats->tx_stops++;
 672         u64_stats_update_end(&stats->sync);
 673 }
 674
 675 /* Determine number of WRB entries needed to xmit data in an skb */
 676 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
 677                                                                 bool *dummy)
 678 {
 679         int cnt = (skb->len > skb->data_len);
 680
 681         cnt += skb_shinfo(skb)->nr_frags;
 682
 683         /* to account for hdr wrb */
 684         cnt++;
 685         if (lancer_chip(adapter) || !(cnt & 1)) {
 686                 *dummy = false;
 687         } else {
 688                 /* add a dummy to make it an even num */
 689                 cnt++;
 690                 *dummy = true;
 691         }
 692         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 693         return cnt;
 694 }
 695
 696 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 697 {
 698         wrb->frag_pa_hi = upper_32_bits(addr);
 699         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 700         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 701         wrb->rsvd0 = 0;
 702 }
 703
 704 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
 705                                         struct sk_buff *skb)
 706 {
 707         u8 vlan_prio;
 708         u16 vlan_tag;
 709
 710         vlan_tag = vlan_tx_tag_get(skb);
 711         vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
 712         /* If vlan priority provided by OS is NOT in available bmap */
 713         if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
 714                 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
 715                                 adapter->recommended_prio;
 716
 717         return vlan_tag;
 718 }
 719
 720 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
 721                 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
 722 {
 723         u16 vlan_tag;
 724
 725         memset(hdr, 0, sizeof(*hdr));
 726
 727         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 728
 729         if (skb_is_gso(skb)) {
 730                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 731                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 732                         hdr, skb_shinfo(skb)->gso_size);
 733                 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
 734                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
 735         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 736                 if (is_tcp_pkt(skb))
 737                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 738                 else if (is_udp_pkt(skb))
 739                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 740         }
 741
 742         if (vlan_tx_tag_present(skb)) {
 743                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 744                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 745                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
 746         }
 747
 748         /* To skip HW VLAN tagging: evt = 1, compl = 0 */
 749         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
 750         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 751         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 752         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 753 }
 754
 755 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
 756                 bool unmap_single)
 757 {
 758         dma_addr_t dma;
 759
 760         be_dws_le_to_cpu(wrb, sizeof(*wrb));
 761
 762         dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
 763         if (wrb->frag_len) {
 764                 if (unmap_single)
 765                         dma_unmap_single(dev, dma, wrb->frag_len,
 766                                          DMA_TO_DEVICE);
 767                 else
 768                         dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
 769         }
 770 }
 771
 772 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
 773                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
 774                 bool skip_hw_vlan)
 775 {
 776         dma_addr_t busaddr;
 777         int i, copied = 0;
 778         struct device *dev = &adapter->pdev->dev;
 779         struct sk_buff *first_skb = skb;
 780         struct be_eth_wrb *wrb;
 781         struct be_eth_hdr_wrb *hdr;
 782         bool map_single = false;
 783         u16 map_head;
 784
 785         hdr = queue_head_node(txq);
 786         queue_head_inc(txq);
 787         map_head = txq->head;
 788
 789         if (skb->len > skb->data_len) {
 790                 int len = skb_headlen(skb);
 791                 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
 792                 if (dma_mapping_error(dev, busaddr))
 793                         goto dma_err;
 794                 map_single = true;
 795                 wrb = queue_head_node(txq);
 796                 wrb_fill(wrb, busaddr, len);
 797                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 798                 queue_head_inc(txq);
 799                 copied += len;
 800         }
 801
 802         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 803                 const struct skb_frag_struct *frag =
 804                         &skb_shinfo(skb)->frags[i];
 805                 busaddr = skb_frag_dma_map(dev, frag, 0,
 806                                            skb_frag_size(frag), DMA_TO_DEVICE);
 807                 if (dma_mapping_error(dev, busaddr))
 808                         goto dma_err;
 809                 wrb = queue_head_node(txq);
 810                 wrb_fill(wrb, busaddr, skb_frag_size(frag));
 811                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 812                 queue_head_inc(txq);
 813                 copied += skb_frag_size(frag);
 814         }
 815
 816         if (dummy_wrb) {
 817                 wrb = queue_head_node(txq);
 818                 wrb_fill(wrb, 0, 0);
 819                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 820                 queue_head_inc(txq);
 821         }
 822
 823         wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
 824         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 825
 826         return copied;
 827 dma_err:
 828         txq->head = map_head;
 829         while (copied) {
 830                 wrb = queue_head_node(txq);
 831                 unmap_tx_frag(dev, wrb, map_single);
 832                 map_single = false;
 833                 copied -= wrb->frag_len;
 834                 queue_head_inc(txq);
 835         }
 836         return 0;
 837 }
 838
 839 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
 840                                              struct sk_buff *skb,
 841                                              bool *skip_hw_vlan)
 842 {
 843         u16 vlan_tag = 0;
 844
 845         skb = skb_share_check(skb, GFP_ATOMIC);
 846         if (unlikely(!skb))
 847                 return skb;
 848
 849         if (vlan_tx_tag_present(skb))
 850                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 851
 852         if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
 853                 if (!vlan_tag)
 854                         vlan_tag = adapter->pvid;
 855                 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
 856                  * skip VLAN insertion
 857                  */
 858                 if (skip_hw_vlan)
 859                         *skip_hw_vlan = true;
 860         }
 861
 862         if (vlan_tag) {
 863                 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
 864                 if (unlikely(!skb))
 865                         return skb;
 866                 skb->vlan_tci = 0;
 867         }
 868
 869         /* Insert the outer VLAN, if any */
 870         if (adapter->qnq_vid) {
 871                 vlan_tag = adapter->qnq_vid;
 872                 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
 873                 if (unlikely(!skb))
 874                         return skb;
 875                 if (skip_hw_vlan)
 876                         *skip_hw_vlan = true;
 877         }
 878
 879         return skb;
 880 }
 881
 882 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
 883 {
 884         struct ethhdr *eh = (struct ethhdr *)skb->data;
 885         u16 offset = ETH_HLEN;
 886
 887         if (eh->h_proto == htons(ETH_P_IPV6)) {
 888                 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
 889
 890                 offset += sizeof(struct ipv6hdr);
 891                 if (ip6h->nexthdr != NEXTHDR_TCP &&
 892                     ip6h->nexthdr != NEXTHDR_UDP) {
 893                         struct ipv6_opt_hdr *ehdr =
 894                                 (struct ipv6_opt_hdr *) (skb->data + offset);
 895
 896                         /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
 897                         if (ehdr->hdrlen == 0xff)
 898                                 return true;
 899                 }
 900         }
 901         return false;
 902 }
 903
 904 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
 905 {
 906         return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
 907 }
 908
 909 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
 910                                 struct sk_buff *skb)
 911 {
 912         return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
 913 }
 914
 915 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
 916                                            struct sk_buff *skb,
 917                                            bool *skip_hw_vlan)
 918 {
 919         struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
 920         unsigned int eth_hdr_len;
 921         struct iphdr *ip;
 922
 923         /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less
 924          * may cause a transmit stall on that port. So the work-around is to
 925          * pad short packets (<= 32 bytes) to a 36-byte length.
 926          */
 927         if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
 928                 if (skb_padto(skb, 36))
 929                         goto tx_drop;
 930                 skb->len = 36;
 931         }
 932
 933         /* For padded packets, BE HW modifies tot_len field in IP header
 934          * incorrecly when VLAN tag is inserted by HW.
 935          * For padded packets, Lancer computes incorrect checksum.
 936          */
 937         eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
 938                                                 VLAN_ETH_HLEN : ETH_HLEN;
 939         if (skb->len <= 60 &&
 940             (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
 941             is_ipv4_pkt(skb)) {
 942                 ip = (struct iphdr *)ip_hdr(skb);
 943                 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
 944         }
 945
 946         /* If vlan tag is already inlined in the packet, skip HW VLAN
 947          * tagging in UMC mode
 948          */
 949         if ((adapter->function_mode & UMC_ENABLED) &&
 950             veh->h_vlan_proto == htons(ETH_P_8021Q))
 951                         *skip_hw_vlan = true;
 952
 953         /* HW has a bug wherein it will calculate CSUM for VLAN
 954          * pkts even though it is disabled.
 955          * Manually insert VLAN in pkt.
 956          */
 957         if (skb->ip_summed != CHECKSUM_PARTIAL &&
 958             vlan_tx_tag_present(skb)) {
 959                 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
 960                 if (unlikely(!skb))
 961                         goto tx_drop;
 962         }
 963
 964         /* HW may lockup when VLAN HW tagging is requested on
 965          * certain ipv6 packets. Drop such pkts if the HW workaround to
 966          * skip HW tagging is not enabled by FW.
 967          */
 968         if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
 969             (adapter->pvid || adapter->qnq_vid) &&
 970             !qnq_async_evt_rcvd(adapter)))
 971                 goto tx_drop;
 972
 973         /* Manual VLAN tag insertion to prevent:
 974          * ASIC lockup when the ASIC inserts VLAN tag into
 975          * certain ipv6 packets. Insert VLAN tags in driver,
 976          * and set event, completion, vlan bits accordingly
 977          * in the Tx WRB.
 978          */
 979         if (be_ipv6_tx_stall_chk(adapter, skb) &&
 980             be_vlan_tag_tx_chk(adapter, skb)) {
 981                 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
 982                 if (unlikely(!skb))
 983                         goto tx_drop;
 984         }
 985
 986         return skb;
 987 tx_drop:
 988         dev_kfree_skb_any(skb);
 989         return NULL;
 990 }
 991
 992 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
 993 {
 994         struct be_adapter *adapter = netdev_priv(netdev);
 995         struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
 996         struct be_queue_info *txq = &txo->q;
 997         bool dummy_wrb, stopped = false;
 998         u32 wrb_cnt = 0, copied = 0;
 999         bool skip_hw_vlan = false;
1000         u32 start = txq->head;
1001
1002         skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
1003         if (!skb) {
1004                 tx_stats(txo)->tx_drv_drops++;
1005                 return NETDEV_TX_OK;
1006         }
1007
1008         wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
1009
1010         copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
1011                               skip_hw_vlan);
1012         if (copied) {
1013                 int gso_segs = skb_shinfo(skb)->gso_segs;
1014
1015                 /* record the sent skb in the sent_skb table */
1016                 BUG_ON(txo->sent_skb_list[start]);
1017                 txo->sent_skb_list[start] = skb;
1018
1019                 /* Ensure txq has space for the next skb; Else stop the queue
1020                  * *BEFORE* ringing the tx doorbell, so that we serialze the
1021                  * tx compls of the current transmit which'll wake up the queue
1022                  */
1023                 atomic_add(wrb_cnt, &txq->used);
1024                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
1025                                                                 txq->len) {
1026                         netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
1027                         stopped = true;
1028                 }
1029
1030                 be_txq_notify(adapter, txo, wrb_cnt);
1031
1032                 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
1033         } else {
1034                 txq->head = start;
1035                 tx_stats(txo)->tx_drv_drops++;
1036                 dev_kfree_skb_any(skb);
1037         }
1038         return NETDEV_TX_OK;
1039 }
1040
1041 static int be_change_mtu(struct net_device *netdev, int new_mtu)
1042 {
1043         struct be_adapter *adapter = netdev_priv(netdev);
1044         if (new_mtu < BE_MIN_MTU ||
1045                         new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
1046                                         (ETH_HLEN + ETH_FCS_LEN))) {
1047                 dev_info(&adapter->pdev->dev,
1048                         "MTU must be between %d and %d bytes\n",
1049                         BE_MIN_MTU,
1050                         (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
1051                 return -EINVAL;
1052         }
1053         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
1054                         netdev->mtu, new_mtu);
1055         netdev->mtu = new_mtu;
1056         return 0;
1057 }
1058
1059 /*
1060  * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
1061  * If the user configures more, place BE in vlan promiscuous mode.
1062  */
1063 static int be_vid_config(struct be_adapter *adapter)
1064 {
1065         u16 vids[BE_NUM_VLANS_SUPPORTED];
1066         u16 num = 0, i;
1067         int status = 0;
1068
1069         /* No need to further configure vids if in promiscuous mode */
1070         if (adapter->promiscuous)
1071                 return 0;
1072
1073         if (adapter->vlans_added > be_max_vlans(adapter))
1074                 goto set_vlan_promisc;
1075
1076         /* Construct VLAN Table to give to HW */
1077         for (i = 0; i < VLAN_N_VID; i++)
1078                 if (adapter->vlan_tag[i])
1079                         vids[num++] = cpu_to_le16(i);
1080
1081         status = be_cmd_vlan_config(adapter, adapter->if_handle,
1082                                     vids, num, 1, 0);
1083
1084         if (status) {
1085                 /* Set to VLAN promisc mode as setting VLAN filter failed */
1086                 if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
1087                         goto set_vlan_promisc;
1088                 dev_err(&adapter->pdev->dev,
1089                         "Setting HW VLAN filtering failed.\n");
1090         } else {
1091                 if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
1092                         /* hw VLAN filtering re-enabled. */
1093                         status = be_cmd_rx_filter(adapter,
1094                                                   BE_FLAGS_VLAN_PROMISC, OFF);
1095                         if (!status) {
1096                                 dev_info(&adapter->pdev->dev,
1097                                          "Disabling VLAN Promiscuous mode.\n");
1098                                 adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
1099                                 dev_info(&adapter->pdev->dev,
1100                                          "Re-Enabling HW VLAN filtering\n");
1101                         }
1102                 }
1103         }
1104
1105         return status;
1106
1107 set_vlan_promisc:
1108         dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1109
1110         status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
1111         if (!status) {
1112                 dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
1113                 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n");
1114                 adapter->flags |= BE_FLAGS_VLAN_PROMISC;
1115         } else
1116                 dev_err(&adapter->pdev->dev,
1117                         "Failed to enable VLAN Promiscuous mode.\n");
1118         return status;
1119 }
1120
1121 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1122 {
1123         struct be_adapter *adapter = netdev_priv(netdev);
1124         int status = 0;
1125
1126
1127         /* Packets with VID 0 are always received by Lancer by default */
1128         if (lancer_chip(adapter) && vid == 0)
1129                 goto ret;
1130
1131         adapter->vlan_tag[vid] = 1;
1132         if (adapter->vlans_added <= (be_max_vlans(adapter) + 1))
1133                 status = be_vid_config(adapter);
1134
1135         if (!status)
1136                 adapter->vlans_added++;
1137         else
1138                 adapter->vlan_tag[vid] = 0;
1139 ret:
1140         return status;
1141 }
1142
1143 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1144 {
1145         struct be_adapter *adapter = netdev_priv(netdev);
1146         int status = 0;
1147
1148         /* Packets with VID 0 are always received by Lancer by default */
1149         if (lancer_chip(adapter) && vid == 0)
1150                 goto ret;
1151
1152         adapter->vlan_tag[vid] = 0;
1153         if (adapter->vlans_added <= be_max_vlans(adapter))
1154                 status = be_vid_config(adapter);
1155
1156         if (!status)
1157                 adapter->vlans_added--;
1158         else
1159                 adapter->vlan_tag[vid] = 1;
1160 ret:
1161         return status;
1162 }
1163
1164 static void be_set_rx_mode(struct net_device *netdev)
1165 {
1166         struct be_adapter *adapter = netdev_priv(netdev);
1167         int status;
1168
1169         if (netdev->flags & IFF_PROMISC) {
1170                 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1171                 adapter->promiscuous = true;
1172                 goto done;
1173         }
1174
1175         /* BE was previously in promiscuous mode; disable it */
1176         if (adapter->promiscuous) {
1177                 adapter->promiscuous = false;
1178                 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1179
1180                 if (adapter->vlans_added)
1181                         be_vid_config(adapter);
1182         }
1183
1184         /* Enable multicast promisc if num configured exceeds what we support */
1185         if (netdev->flags & IFF_ALLMULTI ||
1186             netdev_mc_count(netdev) > be_max_mc(adapter)) {
1187                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1188                 goto done;
1189         }
1190
1191         if (netdev_uc_count(netdev) != adapter->uc_macs) {
1192                 struct netdev_hw_addr *ha;
1193                 int i = 1; /* First slot is claimed by the Primary MAC */
1194
1195                 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1196                         be_cmd_pmac_del(adapter, adapter->if_handle,
1197                                         adapter->pmac_id[i], 0);
1198                 }
1199
1200                 if (netdev_uc_count(netdev) > be_max_uc(adapter)) {
1201                         be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1202                         adapter->promiscuous = true;
1203                         goto done;
1204                 }
1205
1206                 netdev_for_each_uc_addr(ha, adapter->netdev) {
1207                         adapter->uc_macs++; /* First slot is for Primary MAC */
1208                         be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1209                                         adapter->if_handle,
1210                                         &adapter->pmac_id[adapter->uc_macs], 0);
1211                 }
1212         }
1213
1214         status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1215
1216         /* Set to MCAST promisc mode if setting MULTICAST address fails */
1217         if (status) {
1218                 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1219                 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1220                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1221         }
1222 done:
1223         return;
1224 }
1225
1226 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1227 {
1228         struct be_adapter *adapter = netdev_priv(netdev);
1229         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1230         int status;
1231
1232         if (!sriov_enabled(adapter))
1233                 return -EPERM;
1234
1235         if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1236                 return -EINVAL;
1237
1238         if (BEx_chip(adapter)) {
1239                 be_cmd_pmac_del(adapter, vf_cfg->if_handle, vf_cfg->pmac_id,
1240                                 vf + 1);
1241
1242                 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1243                                          &vf_cfg->pmac_id, vf + 1);
1244         } else {
1245                 status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
1246                                         vf + 1);
1247         }
1248
1249         if (status)
1250                 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1251                                 mac, vf);
1252         else
1253                 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1254
1255         return status;
1256 }
1257
1258 static int be_get_vf_config(struct net_device *netdev, int vf,
1259                         struct ifla_vf_info *vi)
1260 {
1261         struct be_adapter *adapter = netdev_priv(netdev);
1262         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1263
1264         if (!sriov_enabled(adapter))
1265                 return -EPERM;
1266
1267         if (vf >= adapter->num_vfs)
1268                 return -EINVAL;
1269
1270         vi->vf = vf;
1271         vi->tx_rate = vf_cfg->tx_rate;
1272         vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
1273         vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
1274         memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1275
1276         return 0;
1277 }
1278
1279 static int be_set_vf_vlan(struct net_device *netdev,
1280                         int vf, u16 vlan, u8 qos)
1281 {
1282         struct be_adapter *adapter = netdev_priv(netdev);
1283         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1284         int status = 0;
1285
1286         if (!sriov_enabled(adapter))
1287                 return -EPERM;
1288
1289         if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
1290                 return -EINVAL;
1291
1292         if (vlan || qos) {
1293                 vlan |= qos << VLAN_PRIO_SHIFT;
1294                 if (vf_cfg->vlan_tag != vlan) {
1295                         /* If this is new value, program it. Else skip. */
1296                         vf_cfg->vlan_tag = vlan;
1297                         status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1298                                                        vf_cfg->if_handle, 0);
1299                 }
1300         } else {
1301                 /* Reset Transparent Vlan Tagging. */
1302                 vf_cfg->vlan_tag = 0;
1303                 vlan = vf_cfg->def_vid;
1304                 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1305                                                vf_cfg->if_handle, 0);
1306         }
1307
1308
1309         if (status)
1310                 dev_info(&adapter->pdev->dev,
1311                                 "VLAN %d config on VF %d failed\n", vlan, vf);
1312         return status;
1313 }
1314
1315 static int be_set_vf_tx_rate(struct net_device *netdev,
1316                         int vf, int rate)
1317 {
1318         struct be_adapter *adapter = netdev_priv(netdev);
1319         int status = 0;
1320
1321         if (!sriov_enabled(adapter))
1322                 return -EPERM;
1323
1324         if (vf >= adapter->num_vfs)
1325                 return -EINVAL;
1326
1327         if (rate < 100 || rate > 10000) {
1328                 dev_err(&adapter->pdev->dev,
1329                         "tx rate must be between 100 and 10000 Mbps\n");
1330                 return -EINVAL;
1331         }
1332
1333         if (lancer_chip(adapter))
1334                 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1335         else
1336                 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1337
1338         if (status)
1339                 dev_err(&adapter->pdev->dev,
1340                                 "tx rate %d on VF %d failed\n", rate, vf);
1341         else
1342                 adapter->vf_cfg[vf].tx_rate = rate;
1343         return status;
1344 }
1345
1346 static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
1347                           ulong now)
1348 {
1349         aic->rx_pkts_prev = rx_pkts;
1350         aic->tx_reqs_prev = tx_pkts;
1351         aic->jiffies = now;
1352 }
1353
1354 static void be_eqd_update(struct be_adapter *adapter)
1355 {
1356         struct be_set_eqd set_eqd[MAX_EVT_QS];
1357         int eqd, i, num = 0, start;
1358         struct be_aic_obj *aic;
1359         struct be_eq_obj *eqo;
1360         struct be_rx_obj *rxo;
1361         struct be_tx_obj *txo;
1362         u64 rx_pkts, tx_pkts;
1363         ulong now;
1364         u32 pps, delta;
1365
1366         for_all_evt_queues(adapter, eqo, i) {
1367                 aic = &adapter->aic_obj[eqo->idx];
1368                 if (!aic->enable) {
1369                         if (aic->jiffies)
1370                                 aic->jiffies = 0;
1371                         eqd = aic->et_eqd;
1372                         goto modify_eqd;
1373                 }
1374
1375                 rxo = &adapter->rx_obj[eqo->idx];
1376                 do {
1377                         start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
1378                         rx_pkts = rxo->stats.rx_pkts;
1379                 } while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
1380
1381                 txo = &adapter->tx_obj[eqo->idx];
1382                 do {
1383                         start = u64_stats_fetch_begin_bh(&txo->stats.sync);
1384                         tx_pkts = txo->stats.tx_reqs;
1385                 } while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
1386
1387
1388                 /* Skip, if wrapped around or first calculation */
1389                 now = jiffies;
1390                 if (!aic->jiffies || time_before(now, aic->jiffies) ||
1391                     rx_pkts < aic->rx_pkts_prev ||
1392                     tx_pkts < aic->tx_reqs_prev) {
1393                         be_aic_update(aic, rx_pkts, tx_pkts, now);
1394                         continue;
1395                 }
1396
1397                 delta = jiffies_to_msecs(now - aic->jiffies);
1398                 pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
1399                         (((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
1400                 eqd = (pps / 15000) << 2;
1401
1402                 if (eqd < 8)
1403                         eqd = 0;
1404                 eqd = min_t(u32, eqd, aic->max_eqd);
1405                 eqd = max_t(u32, eqd, aic->min_eqd);
1406
1407                 be_aic_update(aic, rx_pkts, tx_pkts, now);
1408 modify_eqd:
1409                 if (eqd != aic->prev_eqd) {
1410                         set_eqd[num].delay_multiplier = (eqd * 65)/100;
1411                         set_eqd[num].eq_id = eqo->q.id;
1412                         aic->prev_eqd = eqd;
1413                         num++;
1414                 }
1415         }
1416
1417         if (num)
1418                 be_cmd_modify_eqd(adapter, set_eqd, num);
1419 }
1420
1421 static void be_rx_stats_update(struct be_rx_obj *rxo,
1422                 struct be_rx_compl_info *rxcp)
1423 {
1424         struct be_rx_stats *stats = rx_stats(rxo);
1425
1426         u64_stats_update_begin(&stats->sync);
1427         stats->rx_compl++;
1428         stats->rx_bytes += rxcp->pkt_size;
1429         stats->rx_pkts++;
1430         if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1431                 stats->rx_mcast_pkts++;
1432         if (rxcp->err)
1433                 stats->rx_compl_err++;
1434         u64_stats_update_end(&stats->sync);
1435 }
1436
1437 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1438 {
1439         /* L4 checksum is not reliable for non TCP/UDP packets.
1440          * Also ignore ipcksm for ipv6 pkts */
1441         return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1442                                 (rxcp->ip_csum || rxcp->ipv6);
1443 }
1444
1445 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1446                                                 u16 frag_idx)
1447 {
1448         struct be_adapter *adapter = rxo->adapter;
1449         struct be_rx_page_info *rx_page_info;
1450         struct be_queue_info *rxq = &rxo->q;
1451
1452         rx_page_info = &rxo->page_info_tbl[frag_idx];
1453         BUG_ON(!rx_page_info->page);
1454
1455         if (rx_page_info->last_page_user) {
1456                 dma_unmap_page(&adapter->pdev->dev,
1457                                dma_unmap_addr(rx_page_info, bus),
1458                                adapter->big_page_size, DMA_FROM_DEVICE);
1459                 rx_page_info->last_page_user = false;
1460         }
1461
1462         atomic_dec(&rxq->used);
1463         return rx_page_info;
1464 }
1465
1466 /* Throwaway the data in the Rx completion */
1467 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1468                                 struct be_rx_compl_info *rxcp)
1469 {
1470         struct be_queue_info *rxq = &rxo->q;
1471         struct be_rx_page_info *page_info;
1472         u16 i, num_rcvd = rxcp->num_rcvd;
1473
1474         for (i = 0; i < num_rcvd; i++) {
1475                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1476                 put_page(page_info->page);
1477                 memset(page_info, 0, sizeof(*page_info));
1478                 index_inc(&rxcp->rxq_idx, rxq->len);
1479         }
1480 }
1481
1482 /*
1483  * skb_fill_rx_data forms a complete skb for an ether frame
1484  * indicated by rxcp.
1485  */
1486 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1487                              struct be_rx_compl_info *rxcp)
1488 {
1489         struct be_queue_info *rxq = &rxo->q;
1490         struct be_rx_page_info *page_info;
1491         u16 i, j;
1492         u16 hdr_len, curr_frag_len, remaining;
1493         u8 *start;
1494
1495         page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1496         start = page_address(page_info->page) + page_info->page_offset;
1497         prefetch(start);
1498
1499         /* Copy data in the first descriptor of this completion */
1500         curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1501
1502         skb->len = curr_frag_len;
1503         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1504                 memcpy(skb->data, start, curr_frag_len);
1505                 /* Complete packet has now been moved to data */
1506                 put_page(page_info->page);
1507                 skb->data_len = 0;
1508                 skb->tail += curr_frag_len;
1509         } else {
1510                 hdr_len = ETH_HLEN;
1511                 memcpy(skb->data, start, hdr_len);
1512                 skb_shinfo(skb)->nr_frags = 1;
1513                 skb_frag_set_page(skb, 0, page_info->page);
1514                 skb_shinfo(skb)->frags[0].page_offset =
1515                                         page_info->page_offset + hdr_len;
1516                 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1517                 skb->data_len = curr_frag_len - hdr_len;
1518                 skb->truesize += rx_frag_size;
1519                 skb->tail += hdr_len;
1520         }
1521         page_info->page = NULL;
1522
1523         if (rxcp->pkt_size <= rx_frag_size) {
1524                 BUG_ON(rxcp->num_rcvd != 1);
1525                 return;
1526         }
1527
1528         /* More frags present for this completion */
1529         index_inc(&rxcp->rxq_idx, rxq->len);
1530         remaining = rxcp->pkt_size - curr_frag_len;
1531         for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1532                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1533                 curr_frag_len = min(remaining, rx_frag_size);
1534
1535                 /* Coalesce all frags from the same physical page in one slot */
1536                 if (page_info->page_offset == 0) {
1537                         /* Fresh page */
1538                         j++;
1539                         skb_frag_set_page(skb, j, page_info->page);
1540                         skb_shinfo(skb)->frags[j].page_offset =
1541                                                         page_info->page_offset;
1542                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1543                         skb_shinfo(skb)->nr_frags++;
1544                 } else {
1545                         put_page(page_info->page);
1546                 }
1547
1548                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1549                 skb->len += curr_frag_len;
1550                 skb->data_len += curr_frag_len;
1551                 skb->truesize += rx_frag_size;
1552                 remaining -= curr_frag_len;
1553                 index_inc(&rxcp->rxq_idx, rxq->len);
1554                 page_info->page = NULL;
1555         }
1556         BUG_ON(j > MAX_SKB_FRAGS);
1557 }
1558
1559 /* Process the RX completion indicated by rxcp when GRO is disabled */
1560 static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
1561                                 struct be_rx_compl_info *rxcp)
1562 {
1563         struct be_adapter *adapter = rxo->adapter;
1564         struct net_device *netdev = adapter->netdev;
1565         struct sk_buff *skb;
1566
1567         skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1568         if (unlikely(!skb)) {
1569                 rx_stats(rxo)->rx_drops_no_skbs++;
1570                 be_rx_compl_discard(rxo, rxcp);
1571                 return;
1572         }
1573
1574         skb_fill_rx_data(rxo, skb, rxcp);
1575
1576         if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1577                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1578         else
1579                 skb_checksum_none_assert(skb);
1580
1581         skb->protocol = eth_type_trans(skb, netdev);
1582         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1583         if (netdev->features & NETIF_F_RXHASH)
1584                 skb->rxhash = rxcp->rss_hash;
1585         skb_mark_napi_id(skb, napi);
1586
1587         if (rxcp->vlanf)
1588                 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1589
1590         netif_receive_skb(skb);
1591 }
1592
1593 /* Process the RX completion indicated by rxcp when GRO is enabled */
1594 static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
1595                                     struct napi_struct *napi,
1596                                     struct be_rx_compl_info *rxcp)
1597 {
1598         struct be_adapter *adapter = rxo->adapter;
1599         struct be_rx_page_info *page_info;
1600         struct sk_buff *skb = NULL;
1601         struct be_queue_info *rxq = &rxo->q;
1602         u16 remaining, curr_frag_len;
1603         u16 i, j;
1604
1605         skb = napi_get_frags(napi);
1606         if (!skb) {
1607                 be_rx_compl_discard(rxo, rxcp);
1608                 return;
1609         }
1610
1611         remaining = rxcp->pkt_size;
1612         for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1613                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1614
1615                 curr_frag_len = min(remaining, rx_frag_size);
1616
1617                 /* Coalesce all frags from the same physical page in one slot */
1618                 if (i == 0 || page_info->page_offset == 0) {
1619                         /* First frag or Fresh page */
1620                         j++;
1621                         skb_frag_set_page(skb, j, page_info->page);
1622                         skb_shinfo(skb)->frags[j].page_offset =
1623                                                         page_info->page_offset;
1624                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1625                 } else {
1626                         put_page(page_info->page);
1627                 }
1628                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1629                 skb->truesize += rx_frag_size;
1630                 remaining -= curr_frag_len;
1631                 index_inc(&rxcp->rxq_idx, rxq->len);
1632                 memset(page_info, 0, sizeof(*page_info));
1633         }
1634         BUG_ON(j > MAX_SKB_FRAGS);
1635
1636         skb_shinfo(skb)->nr_frags = j + 1;
1637         skb->len = rxcp->pkt_size;
1638         skb->data_len = rxcp->pkt_size;
1639         skb->ip_summed = CHECKSUM_UNNECESSARY;
1640         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1641         if (adapter->netdev->features & NETIF_F_RXHASH)
1642                 skb->rxhash = rxcp->rss_hash;
1643         skb_mark_napi_id(skb, napi);
1644
1645         if (rxcp->vlanf)
1646                 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1647
1648         napi_gro_frags(napi);
1649 }
1650
1651 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1652                                  struct be_rx_compl_info *rxcp)
1653 {
1654         rxcp->pkt_size =
1655                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1656         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1657         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1658         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1659         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1660         rxcp->ip_csum =
1661                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1662         rxcp->l4_csum =
1663                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1664         rxcp->ipv6 =
1665                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1666         rxcp->rxq_idx =
1667                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1668         rxcp->num_rcvd =
1669                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1670         rxcp->pkt_type =
1671                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1672         rxcp->rss_hash =
1673                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1674         if (rxcp->vlanf) {
1675                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1676                                           compl);
1677                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1678                                                compl);
1679         }
1680         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1681 }
1682
1683 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1684                                  struct be_rx_compl_info *rxcp)
1685 {
1686         rxcp->pkt_size =
1687                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1688         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1689         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1690         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1691         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1692         rxcp->ip_csum =
1693                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1694         rxcp->l4_csum =
1695                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1696         rxcp->ipv6 =
1697                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1698         rxcp->rxq_idx =
1699                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1700         rxcp->num_rcvd =
1701                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1702         rxcp->pkt_type =
1703                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1704         rxcp->rss_hash =
1705                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1706         if (rxcp->vlanf) {
1707                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1708                                           compl);
1709                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1710                                                compl);
1711         }
1712         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1713         rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1714                                       ip_frag, compl);
1715 }
1716
1717 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1718 {
1719         struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1720         struct be_rx_compl_info *rxcp = &rxo->rxcp;
1721         struct be_adapter *adapter = rxo->adapter;
1722
1723         /* For checking the valid bit it is Ok to use either definition as the
1724          * valid bit is at the same position in both v0 and v1 Rx compl */
1725         if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1726                 return NULL;
1727
1728         rmb();
1729         be_dws_le_to_cpu(compl, sizeof(*compl));
1730
1731         if (adapter->be3_native)
1732                 be_parse_rx_compl_v1(compl, rxcp);
1733         else
1734                 be_parse_rx_compl_v0(compl, rxcp);
1735
1736         if (rxcp->ip_frag)
1737                 rxcp->l4_csum = 0;
1738
1739         if (rxcp->vlanf) {
1740                 /* vlanf could be wrongly set in some cards.
1741                  * ignore if vtm is not set */
1742                 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1743                         rxcp->vlanf = 0;
1744
1745                 if (!lancer_chip(adapter))
1746                         rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1747
1748                 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1749                     !adapter->vlan_tag[rxcp->vlan_tag])
1750                         rxcp->vlanf = 0;
1751         }
1752
1753         /* As the compl has been parsed, reset it; we wont touch it again */
1754         compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1755
1756         queue_tail_inc(&rxo->cq);
1757         return rxcp;
1758 }
1759
1760 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1761 {
1762         u32 order = get_order(size);
1763
1764         if (order > 0)
1765                 gfp |= __GFP_COMP;
1766         return  alloc_pages(gfp, order);
1767 }
1768
1769 /*
1770  * Allocate a page, split it to fragments of size rx_frag_size and post as
1771  * receive buffers to BE
1772  */
1773 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1774 {
1775         struct be_adapter *adapter = rxo->adapter;
1776         struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1777         struct be_queue_info *rxq = &rxo->q;
1778         struct page *pagep = NULL;
1779         struct be_eth_rx_d *rxd;
1780         u64 page_dmaaddr = 0, frag_dmaaddr;
1781         u32 posted, page_offset = 0;
1782
1783         page_info = &rxo->page_info_tbl[rxq->head];
1784         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1785                 if (!pagep) {
1786                         pagep = be_alloc_pages(adapter->big_page_size, gfp);
1787                         if (unlikely(!pagep)) {
1788                                 rx_stats(rxo)->rx_post_fail++;
1789                                 break;
1790                         }
1791                         page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1792                                                     0, adapter->big_page_size,
1793                                                     DMA_FROM_DEVICE);
1794                         page_info->page_offset = 0;
1795                 } else {
1796                         get_page(pagep);
1797                         page_info->page_offset = page_offset + rx_frag_size;
1798                 }
1799                 page_offset = page_info->page_offset;
1800                 page_info->page = pagep;
1801                 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1802                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1803
1804                 rxd = queue_head_node(rxq);
1805                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1806                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1807
1808                 /* Any space left in the current big page for another frag? */
1809                 if ((page_offset + rx_frag_size + rx_frag_size) >
1810                                         adapter->big_page_size) {
1811                         pagep = NULL;
1812                         page_info->last_page_user = true;
1813                 }
1814
1815                 prev_page_info = page_info;
1816                 queue_head_inc(rxq);
1817                 page_info = &rxo->page_info_tbl[rxq->head];
1818         }
1819         if (pagep)
1820                 prev_page_info->last_page_user = true;
1821
1822         if (posted) {
1823                 atomic_add(posted, &rxq->used);
1824                 if (rxo->rx_post_starved)
1825                         rxo->rx_post_starved = false;
1826                 be_rxq_notify(adapter, rxq->id, posted);
1827         } else if (atomic_read(&rxq->used) == 0) {
1828                 /* Let be_worker replenish when memory is available */
1829                 rxo->rx_post_starved = true;
1830         }
1831 }
1832
1833 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1834 {
1835         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1836
1837         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1838                 return NULL;
1839
1840         rmb();
1841         be_dws_le_to_cpu(txcp, sizeof(*txcp));
1842
1843         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1844
1845         queue_tail_inc(tx_cq);
1846         return txcp;
1847 }
1848
1849 static u16 be_tx_compl_process(struct be_adapter *adapter,
1850                 struct be_tx_obj *txo, u16 last_index)
1851 {
1852         struct be_queue_info *txq = &txo->q;
1853         struct be_eth_wrb *wrb;
1854         struct sk_buff **sent_skbs = txo->sent_skb_list;
1855         struct sk_buff *sent_skb;
1856         u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1857         bool unmap_skb_hdr = true;
1858
1859         sent_skb = sent_skbs[txq->tail];
1860         BUG_ON(!sent_skb);
1861         sent_skbs[txq->tail] = NULL;
1862
1863         /* skip header wrb */
1864         queue_tail_inc(txq);
1865
1866         do {
1867                 cur_index = txq->tail;
1868                 wrb = queue_tail_node(txq);
1869                 unmap_tx_frag(&adapter->pdev->dev, wrb,
1870                               (unmap_skb_hdr && skb_headlen(sent_skb)));
1871                 unmap_skb_hdr = false;
1872
1873                 num_wrbs++;
1874                 queue_tail_inc(txq);
1875         } while (cur_index != last_index);
1876
1877         kfree_skb(sent_skb);
1878         return num_wrbs;
1879 }
1880
1881 /* Return the number of events in the event queue */
1882 static inline int events_get(struct be_eq_obj *eqo)
1883 {
1884         struct be_eq_entry *eqe;
1885         int num = 0;
1886
1887         do {
1888                 eqe = queue_tail_node(&eqo->q);
1889                 if (eqe->evt == 0)
1890                         break;
1891
1892                 rmb();
1893                 eqe->evt = 0;
1894                 num++;
1895                 queue_tail_inc(&eqo->q);
1896         } while (true);
1897
1898         return num;
1899 }
1900
1901 /* Leaves the EQ is disarmed state */
1902 static void be_eq_clean(struct be_eq_obj *eqo)
1903 {
1904         int num = events_get(eqo);
1905
1906         be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1907 }
1908
1909 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1910 {
1911         struct be_rx_page_info *page_info;
1912         struct be_queue_info *rxq = &rxo->q;
1913         struct be_queue_info *rx_cq = &rxo->cq;
1914         struct be_rx_compl_info *rxcp;
1915         struct be_adapter *adapter = rxo->adapter;
1916         int flush_wait = 0;
1917         u16 tail;
1918
1919         /* Consume pending rx completions.
1920          * Wait for the flush completion (identified by zero num_rcvd)
1921          * to arrive. Notify CQ even when there are no more CQ entries
1922          * for HW to flush partially coalesced CQ entries.
1923          * In Lancer, there is no need to wait for flush compl.
1924          */
1925         for (;;) {
1926                 rxcp = be_rx_compl_get(rxo);
1927                 if (rxcp == NULL) {
1928                         if (lancer_chip(adapter))
1929                                 break;
1930
1931                         if (flush_wait++ > 10 || be_hw_error(adapter)) {
1932                                 dev_warn(&adapter->pdev->dev,
1933                                          "did not receive flush compl\n");
1934                                 break;
1935                         }
1936                         be_cq_notify(adapter, rx_cq->id, true, 0);
1937                         mdelay(1);
1938                 } else {
1939                         be_rx_compl_discard(rxo, rxcp);
1940                         be_cq_notify(adapter, rx_cq->id, false, 1);
1941                         if (rxcp->num_rcvd == 0)
1942                                 break;
1943                 }
1944         }
1945
1946         /* After cleanup, leave the CQ in unarmed state */
1947         be_cq_notify(adapter, rx_cq->id, false, 0);
1948
1949         /* Then free posted rx buffers that were not used */
1950         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1951         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1952                 page_info = get_rx_page_info(rxo, tail);
1953                 put_page(page_info->page);
1954                 memset(page_info, 0, sizeof(*page_info));
1955         }
1956         BUG_ON(atomic_read(&rxq->used));
1957         rxq->tail = rxq->head = 0;
1958 }
1959
1960 static void be_tx_compl_clean(struct be_adapter *adapter)
1961 {
1962         struct be_tx_obj *txo;
1963         struct be_queue_info *txq;
1964         struct be_eth_tx_compl *txcp;
1965         u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1966         struct sk_buff *sent_skb;
1967         bool dummy_wrb;
1968         int i, pending_txqs;
1969
1970         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1971         do {
1972                 pending_txqs = adapter->num_tx_qs;
1973
1974                 for_all_tx_queues(adapter, txo, i) {
1975                         txq = &txo->q;
1976                         while ((txcp = be_tx_compl_get(&txo->cq))) {
1977                                 end_idx =
1978                                         AMAP_GET_BITS(struct amap_eth_tx_compl,
1979                                                       wrb_index, txcp);
1980                                 num_wrbs += be_tx_compl_process(adapter, txo,
1981                                                                 end_idx);
1982                                 cmpl++;
1983                         }
1984                         if (cmpl) {
1985                                 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1986                                 atomic_sub(num_wrbs, &txq->used);
1987                                 cmpl = 0;
1988                                 num_wrbs = 0;
1989                         }
1990                         if (atomic_read(&txq->used) == 0)
1991                                 pending_txqs--;
1992                 }
1993
1994                 if (pending_txqs == 0 || ++timeo > 200)
1995                         break;
1996
1997                 mdelay(1);
1998         } while (true);
1999
2000         for_all_tx_queues(adapter, txo, i) {
2001                 txq = &txo->q;
2002                 if (atomic_read(&txq->used))
2003                         dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
2004                                 atomic_read(&txq->used));
2005
2006                 /* free posted tx for which compls will never arrive */
2007                 while (atomic_read(&txq->used)) {
2008                         sent_skb = txo->sent_skb_list[txq->tail];
2009                         end_idx = txq->tail;
2010                         num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
2011                                                    &dummy_wrb);
2012                         index_adv(&end_idx, num_wrbs - 1, txq->len);
2013                         num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
2014                         atomic_sub(num_wrbs, &txq->used);
2015                 }
2016         }
2017 }
2018
2019 static void be_evt_queues_destroy(struct be_adapter *adapter)
2020 {
2021         struct be_eq_obj *eqo;
2022         int i;
2023
2024         for_all_evt_queues(adapter, eqo, i) {
2025                 if (eqo->q.created) {
2026                         be_eq_clean(eqo);
2027                         be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
2028                         napi_hash_del(&eqo->napi);
2029                         netif_napi_del(&eqo->napi);
2030                 }
2031                 be_queue_free(adapter, &eqo->q);
2032         }
2033 }
2034
2035 static int be_evt_queues_create(struct be_adapter *adapter)
2036 {
2037         struct be_queue_info *eq;
2038         struct be_eq_obj *eqo;
2039         struct be_aic_obj *aic;
2040         int i, rc;
2041
2042         adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
2043                                     adapter->cfg_num_qs);
2044
2045         for_all_evt_queues(adapter, eqo, i) {
2046                 netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
2047                                BE_NAPI_WEIGHT);
2048                 napi_hash_add(&eqo->napi);
2049                 aic = &adapter->aic_obj[i];
2050                 eqo->adapter = adapter;
2051                 eqo->tx_budget = BE_TX_BUDGET;
2052                 eqo->idx = i;
2053                 aic->max_eqd = BE_MAX_EQD;
2054                 aic->enable = true;
2055
2056                 eq = &eqo->q;
2057                 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
2058                                         sizeof(struct be_eq_entry));
2059                 if (rc)
2060                         return rc;
2061
2062                 rc = be_cmd_eq_create(adapter, eqo);
2063                 if (rc)
2064                         return rc;
2065         }
2066         return 0;
2067 }
2068
2069 static void be_mcc_queues_destroy(struct be_adapter *adapter)
2070 {
2071         struct be_queue_info *q;
2072
2073         q = &adapter->mcc_obj.q;
2074         if (q->created)
2075                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
2076         be_queue_free(adapter, q);
2077
2078         q = &adapter->mcc_obj.cq;
2079         if (q->created)
2080                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2081         be_queue_free(adapter, q);
2082 }
2083
2084 /* Must be called only after TX qs are created as MCC shares TX EQ */
2085 static int be_mcc_queues_create(struct be_adapter *adapter)
2086 {
2087         struct be_queue_info *q, *cq;
2088
2089         cq = &adapter->mcc_obj.cq;
2090         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
2091                         sizeof(struct be_mcc_compl)))
2092                 goto err;
2093
2094         /* Use the default EQ for MCC completions */
2095         if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
2096                 goto mcc_cq_free;
2097
2098         q = &adapter->mcc_obj.q;
2099         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
2100                 goto mcc_cq_destroy;
2101
2102         if (be_cmd_mccq_create(adapter, q, cq))
2103                 goto mcc_q_free;
2104
2105         return 0;
2106
2107 mcc_q_free:
2108         be_queue_free(adapter, q);
2109 mcc_cq_destroy:
2110         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
2111 mcc_cq_free:
2112         be_queue_free(adapter, cq);
2113 err:
2114         return -1;
2115 }
2116
2117 static void be_tx_queues_destroy(struct be_adapter *adapter)
2118 {
2119         struct be_queue_info *q;
2120         struct be_tx_obj *txo;
2121         u8 i;
2122
2123         for_all_tx_queues(adapter, txo, i) {
2124                 q = &txo->q;
2125                 if (q->created)
2126                         be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2127                 be_queue_free(adapter, q);
2128
2129                 q = &txo->cq;
2130                 if (q->created)
2131                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2132                 be_queue_free(adapter, q);
2133         }
2134 }
2135
2136 static int be_tx_qs_create(struct be_adapter *adapter)
2137 {
2138         struct be_queue_info *cq, *eq;
2139         struct be_tx_obj *txo;
2140         int status, i;
2141
2142         adapter->num_tx_qs = min(adapter->num_evt_qs, be_max_txqs(adapter));
2143
2144         for_all_tx_queues(adapter, txo, i) {
2145                 cq = &txo->cq;
2146                 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2147                                         sizeof(struct be_eth_tx_compl));
2148                 if (status)
2149                         return status;
2150
2151                 /* If num_evt_qs is less than num_tx_qs, then more than
2152                  * one txq share an eq
2153                  */
2154                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2155                 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2156                 if (status)
2157                         return status;
2158
2159                 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2160                                         sizeof(struct be_eth_wrb));
2161                 if (status)
2162                         return status;
2163
2164                 status = be_cmd_txq_create(adapter, txo);
2165                 if (status)
2166                         return status;
2167         }
2168
2169         dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2170                  adapter->num_tx_qs);
2171         return 0;
2172 }
2173
2174 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2175 {
2176         struct be_queue_info *q;
2177         struct be_rx_obj *rxo;
2178         int i;
2179
2180         for_all_rx_queues(adapter, rxo, i) {
2181                 q = &rxo->cq;
2182                 if (q->created)
2183                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2184                 be_queue_free(adapter, q);
2185         }
2186 }
2187
2188 static int be_rx_cqs_create(struct be_adapter *adapter)
2189 {
2190         struct be_queue_info *eq, *cq;
2191         struct be_rx_obj *rxo;
2192         int rc, i;
2193
2194         /* We can create as many RSS rings as there are EQs. */
2195         adapter->num_rx_qs = adapter->num_evt_qs;
2196
2197         /* We'll use RSS only if atleast 2 RSS rings are supported.
2198          * When RSS is used, we'll need a default RXQ for non-IP traffic.
2199          */
2200         if (adapter->num_rx_qs > 1)
2201                 adapter->num_rx_qs++;
2202
2203         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2204         for_all_rx_queues(adapter, rxo, i) {
2205                 rxo->adapter = adapter;
2206                 cq = &rxo->cq;
2207                 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2208                                 sizeof(struct be_eth_rx_compl));
2209                 if (rc)
2210                         return rc;
2211
2212                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2213                 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2214                 if (rc)
2215                         return rc;
2216         }
2217
2218         dev_info(&adapter->pdev->dev,
2219                  "created %d RSS queue(s) and 1 default RX queue\n",
2220                  adapter->num_rx_qs - 1);
2221         return 0;
2222 }
2223
2224 static irqreturn_t be_intx(int irq, void *dev)
2225 {
2226         struct be_eq_obj *eqo = dev;
2227         struct be_adapter *adapter = eqo->adapter;
2228         int num_evts = 0;
2229
2230         /* IRQ is not expected when NAPI is scheduled as the EQ
2231          * will not be armed.
2232          * But, this can happen on Lancer INTx where it takes
2233          * a while to de-assert INTx or in BE2 where occasionaly
2234          * an interrupt may be raised even when EQ is unarmed.
2235          * If NAPI is already scheduled, then counting & notifying
2236          * events will orphan them.
2237          */
2238         if (napi_schedule_prep(&eqo->napi)) {
2239                 num_evts = events_get(eqo);
2240                 __napi_schedule(&eqo->napi);
2241                 if (num_evts)
2242                         eqo->spurious_intr = 0;
2243         }
2244         be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2245
2246         /* Return IRQ_HANDLED only for the the first spurious intr
2247          * after a valid intr to stop the kernel from branding
2248          * this irq as a bad one!
2249          */
2250         if (num_evts || eqo->spurious_intr++ == 0)
2251                 return IRQ_HANDLED;
2252         else
2253                 return IRQ_NONE;
2254 }
2255
2256 static irqreturn_t be_msix(int irq, void *dev)
2257 {
2258         struct be_eq_obj *eqo = dev;
2259
2260         be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2261         napi_schedule(&eqo->napi);
2262         return IRQ_HANDLED;
2263 }
2264
2265 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2266 {
2267         return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2268 }
2269
2270 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2271                         int budget, int polling)
2272 {
2273         struct be_adapter *adapter = rxo->adapter;
2274         struct be_queue_info *rx_cq = &rxo->cq;
2275         struct be_rx_compl_info *rxcp;
2276         u32 work_done;
2277
2278         for (work_done = 0; work_done < budget; work_done++) {
2279                 rxcp = be_rx_compl_get(rxo);
2280                 if (!rxcp)
2281                         break;
2282
2283                 /* Is it a flush compl that has no data */
2284                 if (unlikely(rxcp->num_rcvd == 0))
2285                         goto loop_continue;
2286
2287                 /* Discard compl with partial DMA Lancer B0 */
2288                 if (unlikely(!rxcp->pkt_size)) {
2289                         be_rx_compl_discard(rxo, rxcp);
2290                         goto loop_continue;
2291                 }
2292
2293                 /* On BE drop pkts that arrive due to imperfect filtering in
2294                  * promiscuous mode on some skews
2295                  */
2296                 if (unlikely(rxcp->port != adapter->port_num &&
2297                                 !lancer_chip(adapter))) {
2298                         be_rx_compl_discard(rxo, rxcp);
2299                         goto loop_continue;
2300                 }
2301
2302                 /* Don't do gro when we're busy_polling */
2303                 if (do_gro(rxcp) && polling != BUSY_POLLING)
2304                         be_rx_compl_process_gro(rxo, napi, rxcp);
2305                 else
2306                         be_rx_compl_process(rxo, napi, rxcp);
2307
2308 loop_continue:
2309                 be_rx_stats_update(rxo, rxcp);
2310         }
2311
2312         if (work_done) {
2313                 be_cq_notify(adapter, rx_cq->id, true, work_done);
2314
2315                 /* When an rx-obj gets into post_starved state, just
2316                  * let be_worker do the posting.
2317                  */
2318                 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
2319                     !rxo->rx_post_starved)
2320                         be_post_rx_frags(rxo, GFP_ATOMIC);
2321         }
2322
2323         return work_done;
2324 }
2325
2326 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2327                           int budget, int idx)
2328 {
2329         struct be_eth_tx_compl *txcp;
2330         int num_wrbs = 0, work_done;
2331
2332         for (work_done = 0; work_done < budget; work_done++) {
2333                 txcp = be_tx_compl_get(&txo->cq);
2334                 if (!txcp)
2335                         break;
2336                 num_wrbs += be_tx_compl_process(adapter, txo,
2337                                 AMAP_GET_BITS(struct amap_eth_tx_compl,
2338                                         wrb_index, txcp));
2339         }
2340
2341         if (work_done) {
2342                 be_cq_notify(adapter, txo->cq.id, true, work_done);
2343                 atomic_sub(num_wrbs, &txo->q.used);
2344
2345                 /* As Tx wrbs have been freed up, wake up netdev queue
2346                  * if it was stopped due to lack of tx wrbs.  */
2347                 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2348                         atomic_read(&txo->q.used) < txo->q.len / 2) {
2349                         netif_wake_subqueue(adapter->netdev, idx);
2350                 }
2351
2352                 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2353                 tx_stats(txo)->tx_compl += work_done;
2354                 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2355         }
2356         return (work_done < budget); /* Done */
2357 }
2358
2359 int be_poll(struct napi_struct *napi, int budget)
2360 {
2361         struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2362         struct be_adapter *adapter = eqo->adapter;
2363         int max_work = 0, work, i, num_evts;
2364         struct be_rx_obj *rxo;
2365         bool tx_done;
2366
2367         num_evts = events_get(eqo);
2368
2369         /* Process all TXQs serviced by this EQ */
2370         for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2371                 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2372                                         eqo->tx_budget, i);
2373                 if (!tx_done)
2374                         max_work = budget;
2375         }
2376
2377         if (be_lock_napi(eqo)) {
2378                 /* This loop will iterate twice for EQ0 in which
2379                  * completions of the last RXQ (default one) are also processed
2380                  * For other EQs the loop iterates only once
2381                  */
2382                 for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2383                         work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
2384                         max_work = max(work, max_work);
2385                 }
2386                 be_unlock_napi(eqo);
2387         } else {
2388                 max_work = budget;
2389         }
2390
2391         if (is_mcc_eqo(eqo))
2392                 be_process_mcc(adapter);
2393
2394         if (max_work < budget) {
2395                 napi_complete(napi);
2396                 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2397         } else {
2398                 /* As we'll continue in polling mode, count and clear events */
2399                 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2400         }
2401         return max_work;
2402 }
2403
2404 #ifdef CONFIG_NET_RX_BUSY_POLL
2405 static int be_busy_poll(struct napi_struct *napi)
2406 {
2407         struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2408         struct be_adapter *adapter = eqo->adapter;
2409         struct be_rx_obj *rxo;
2410         int i, work = 0;
2411
2412         if (!be_lock_busy_poll(eqo))
2413                 return LL_FLUSH_BUSY;
2414
2415         for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
2416                 work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
2417                 if (work)
2418                         break;
2419         }
2420
2421         be_unlock_busy_poll(eqo);
2422         return work;
2423 }
2424 #endif
2425
2426 void be_detect_error(struct be_adapter *adapter)
2427 {
2428         u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2429         u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2430         u32 i;
2431
2432         if (be_hw_error(adapter))
2433                 return;
2434
2435         if (lancer_chip(adapter)) {
2436                 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2437                 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2438                         sliport_err1 = ioread32(adapter->db +
2439                                         SLIPORT_ERROR1_OFFSET);
2440                         sliport_err2 = ioread32(adapter->db +
2441                                         SLIPORT_ERROR2_OFFSET);
2442                 }
2443         } else {
2444                 pci_read_config_dword(adapter->pdev,
2445                                 PCICFG_UE_STATUS_LOW, &ue_lo);
2446                 pci_read_config_dword(adapter->pdev,
2447                                 PCICFG_UE_STATUS_HIGH, &ue_hi);
2448                 pci_read_config_dword(adapter->pdev,
2449                                 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2450                 pci_read_config_dword(adapter->pdev,
2451                                 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2452
2453                 ue_lo = (ue_lo & ~ue_lo_mask);
2454                 ue_hi = (ue_hi & ~ue_hi_mask);
2455         }
2456
2457         /* On certain platforms BE hardware can indicate spurious UEs.
2458          * Allow the h/w to stop working completely in case of a real UE.
2459          * Hence not setting the hw_error for UE detection.
2460          */
2461         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2462                 adapter->hw_error = true;
2463                 dev_err(&adapter->pdev->dev,
2464                         "Error detected in the card\n");
2465         }
2466
2467         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2468                 dev_err(&adapter->pdev->dev,
2469                         "ERR: sliport status 0x%x\n", sliport_status);
2470                 dev_err(&adapter->pdev->dev,
2471                         "ERR: sliport error1 0x%x\n", sliport_err1);
2472                 dev_err(&adapter->pdev->dev,
2473                         "ERR: sliport error2 0x%x\n", sliport_err2);
2474         }
2475
2476         if (ue_lo) {
2477                 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2478                         if (ue_lo & 1)
2479                                 dev_err(&adapter->pdev->dev,
2480                                 "UE: %s bit set\n", ue_status_low_desc[i]);
2481                 }
2482         }
2483
2484         if (ue_hi) {
2485                 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2486                         if (ue_hi & 1)
2487                                 dev_err(&adapter->pdev->dev,
2488                                 "UE: %s bit set\n", ue_status_hi_desc[i]);
2489                 }
2490         }
2491
2492 }
2493
2494 static void be_msix_disable(struct be_adapter *adapter)
2495 {
2496         if (msix_enabled(adapter)) {
2497                 pci_disable_msix(adapter->pdev);
2498                 adapter->num_msix_vec = 0;
2499                 adapter->num_msix_roce_vec = 0;
2500         }
2501 }
2502
2503 static int be_msix_enable(struct be_adapter *adapter)
2504 {
2505         int i, status, num_vec;
2506         struct device *dev = &adapter->pdev->dev;
2507
2508         /* If RoCE is supported, program the max number of NIC vectors that
2509          * may be configured via set-channels, along with vectors needed for
2510          * RoCe. Else, just program the number we'll use initially.
2511          */
2512         if (be_roce_supported(adapter))
2513                 num_vec = min_t(int, 2 * be_max_eqs(adapter),
2514                                 2 * num_online_cpus());
2515         else
2516                 num_vec = adapter->cfg_num_qs;
2517
2518         for (i = 0; i < num_vec; i++)
2519                 adapter->msix_entries[i].entry = i;
2520
2521         status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2522         if (status == 0) {
2523                 goto done;
2524         } else if (status >= MIN_MSIX_VECTORS) {
2525                 num_vec = status;
2526                 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2527                                          num_vec);
2528                 if (!status)
2529                         goto done;
2530         }
2531
2532         dev_warn(dev, "MSIx enable failed\n");
2533
2534         /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2535         if (!be_physfn(adapter))
2536                 return status;
2537         return 0;
2538 done:
2539         if (be_roce_supported(adapter) && num_vec > MIN_MSIX_VECTORS) {
2540                 adapter->num_msix_roce_vec = num_vec / 2;
2541                 dev_info(dev, "enabled %d MSI-x vector(s) for RoCE\n",
2542                          adapter->num_msix_roce_vec);
2543         }
2544
2545         adapter->num_msix_vec = num_vec - adapter->num_msix_roce_vec;
2546
2547         dev_info(dev, "enabled %d MSI-x vector(s) for NIC\n",
2548                  adapter->num_msix_vec);
2549         return 0;
2550 }
2551
2552 static inline int be_msix_vec_get(struct be_adapter *adapter,
2553                                 struct be_eq_obj *eqo)
2554 {
2555         return adapter->msix_entries[eqo->msix_idx].vector;
2556 }
2557
2558 static int be_msix_register(struct be_adapter *adapter)
2559 {
2560         struct net_device *netdev = adapter->netdev;
2561         struct be_eq_obj *eqo;
2562         int status, i, vec;
2563
2564         for_all_evt_queues(adapter, eqo, i) {
2565                 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2566                 vec = be_msix_vec_get(adapter, eqo);
2567                 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2568                 if (status)
2569                         goto err_msix;
2570         }
2571
2572         return 0;
2573 err_msix:
2574         for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2575                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2576         dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2577                 status);
2578         be_msix_disable(adapter);
2579         return status;
2580 }
2581
2582 static int be_irq_register(struct be_adapter *adapter)
2583 {
2584         struct net_device *netdev = adapter->netdev;
2585         int status;
2586
2587         if (msix_enabled(adapter)) {
2588                 status = be_msix_register(adapter);
2589                 if (status == 0)
2590                         goto done;
2591                 /* INTx is not supported for VF */
2592                 if (!be_physfn(adapter))
2593                         return status;
2594         }
2595
2596         /* INTx: only the first EQ is used */
2597         netdev->irq = adapter->pdev->irq;
2598         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2599                              &adapter->eq_obj[0]);
2600         if (status) {
2601                 dev_err(&adapter->pdev->dev,
2602                         "INTx request IRQ failed - err %d\n", status);
2603                 return status;
2604         }
2605 done:
2606         adapter->isr_registered = true;
2607         return 0;
2608 }
2609
2610 static void be_irq_unregister(struct be_adapter *adapter)
2611 {
2612         struct net_device *netdev = adapter->netdev;
2613         struct be_eq_obj *eqo;
2614         int i;
2615
2616         if (!adapter->isr_registered)
2617                 return;
2618
2619         /* INTx */
2620         if (!msix_enabled(adapter)) {
2621                 free_irq(netdev->irq, &adapter->eq_obj[0]);
2622                 goto done;
2623         }
2624
2625         /* MSIx */
2626         for_all_evt_queues(adapter, eqo, i)
2627                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2628
2629 done:
2630         adapter->isr_registered = false;
2631 }
2632
2633 static void be_rx_qs_destroy(struct be_adapter *adapter)
2634 {
2635         struct be_queue_info *q;
2636         struct be_rx_obj *rxo;
2637         int i;
2638
2639         for_all_rx_queues(adapter, rxo, i) {
2640                 q = &rxo->q;
2641                 if (q->created) {
2642                         be_cmd_rxq_destroy(adapter, q);
2643                         be_rx_cq_clean(rxo);
2644                 }
2645                 be_queue_free(adapter, q);
2646         }
2647 }
2648
2649 static int be_close(struct net_device *netdev)
2650 {
2651         struct be_adapter *adapter = netdev_priv(netdev);
2652         struct be_eq_obj *eqo;
2653         int i;
2654
2655         be_roce_dev_close(adapter);
2656
2657         for_all_evt_queues(adapter, eqo, i) {
2658                 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2659                         napi_disable(&eqo->napi);
2660                         be_disable_busy_poll(eqo);
2661                 }
2662                 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2663         }
2664
2665         be_async_mcc_disable(adapter);
2666
2667         /* Wait for all pending tx completions to arrive so that
2668          * all tx skbs are freed.
2669          */
2670         netif_tx_disable(netdev);
2671         be_tx_compl_clean(adapter);
2672
2673         be_rx_qs_destroy(adapter);
2674
2675         for_all_evt_queues(adapter, eqo, i) {
2676                 if (msix_enabled(adapter))
2677                         synchronize_irq(be_msix_vec_get(adapter, eqo));
2678                 else
2679                         synchronize_irq(netdev->irq);
2680                 be_eq_clean(eqo);
2681         }
2682
2683         be_irq_unregister(adapter);
2684
2685         return 0;
2686 }
2687
2688 static int be_rx_qs_create(struct be_adapter *adapter)
2689 {
2690         struct be_rx_obj *rxo;
2691         int rc, i, j;
2692         u8 rsstable[128];
2693
2694         for_all_rx_queues(adapter, rxo, i) {
2695                 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2696                                     sizeof(struct be_eth_rx_d));
2697                 if (rc)
2698                         return rc;
2699         }
2700
2701         /* The FW would like the default RXQ to be created first */
2702         rxo = default_rxo(adapter);
2703         rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2704                                adapter->if_handle, false, &rxo->rss_id);
2705         if (rc)
2706                 return rc;
2707
2708         for_all_rss_queues(adapter, rxo, i) {
2709                 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2710                                        rx_frag_size, adapter->if_handle,
2711                                        true, &rxo->rss_id);
2712                 if (rc)
2713                         return rc;
2714         }
2715
2716         if (be_multi_rxq(adapter)) {
2717                 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2718                         for_all_rss_queues(adapter, rxo, i) {
2719                                 if ((j + i) >= 128)
2720                                         break;
2721                                 rsstable[j + i] = rxo->rss_id;
2722                         }
2723                 }
2724                 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2725                                         RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2726
2727                 if (!BEx_chip(adapter))
2728                         adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2729                                                 RSS_ENABLE_UDP_IPV6;
2730
2731                 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2732                                        128);
2733                 if (rc) {
2734                         adapter->rss_flags = 0;
2735                         return rc;
2736                 }
2737         }
2738
2739         /* First time posting */
2740         for_all_rx_queues(adapter, rxo, i)
2741                 be_post_rx_frags(rxo, GFP_KERNEL);
2742         return 0;
2743 }
2744
2745 static int be_open(struct net_device *netdev)
2746 {
2747         struct be_adapter *adapter = netdev_priv(netdev);
2748         struct be_eq_obj *eqo;
2749         struct be_rx_obj *rxo;
2750         struct be_tx_obj *txo;
2751         u8 link_status;
2752         int status, i;
2753
2754         status = be_rx_qs_create(adapter);
2755         if (status)
2756                 goto err;
2757
2758         status = be_irq_register(adapter);
2759         if (status)
2760                 goto err;
2761
2762         for_all_rx_queues(adapter, rxo, i)
2763                 be_cq_notify(adapter, rxo->cq.id, true, 0);
2764
2765         for_all_tx_queues(adapter, txo, i)
2766                 be_cq_notify(adapter, txo->cq.id, true, 0);
2767
2768         be_async_mcc_enable(adapter);
2769
2770         for_all_evt_queues(adapter, eqo, i) {
2771                 napi_enable(&eqo->napi);
2772                 be_enable_busy_poll(eqo);
2773                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2774         }
2775         adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2776
2777         status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2778         if (!status)
2779                 be_link_status_update(adapter, link_status);
2780
2781         netif_tx_start_all_queues(netdev);
2782         be_roce_dev_open(adapter);
2783         return 0;
2784 err:
2785         be_close(adapter->netdev);
2786         return -EIO;
2787 }
2788
2789 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2790 {
2791         struct be_dma_mem cmd;
2792         int status = 0;
2793         u8 mac[ETH_ALEN];
2794
2795         memset(mac, 0, ETH_ALEN);
2796
2797         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2798         cmd.va = dma_zalloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2799                                      GFP_KERNEL);
2800         if (cmd.va == NULL)
2801                 return -1;
2802
2803         if (enable) {
2804                 status = pci_write_config_dword(adapter->pdev,
2805                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2806                 if (status) {
2807                         dev_err(&adapter->pdev->dev,
2808                                 "Could not enable Wake-on-lan\n");
2809                         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2810                                           cmd.dma);
2811                         return status;
2812                 }
2813                 status = be_cmd_enable_magic_wol(adapter,
2814                                 adapter->netdev->dev_addr, &cmd);
2815                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2816                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2817         } else {
2818                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2819                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2820                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2821         }
2822
2823         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2824         return status;
2825 }
2826
2827 /*
2828  * Generate a seed MAC address from the PF MAC Address using jhash.
2829  * MAC Address for VFs are assigned incrementally starting from the seed.
2830  * These addresses are programmed in the ASIC by the PF and the VF driver
2831  * queries for the MAC address during its probe.
2832  */
2833 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2834 {
2835         u32 vf;
2836         int status = 0;
2837         u8 mac[ETH_ALEN];
2838         struct be_vf_cfg *vf_cfg;
2839
2840         be_vf_eth_addr_generate(adapter, mac);
2841
2842         for_all_vfs(adapter, vf_cfg, vf) {
2843                 if (BEx_chip(adapter))
2844                         status = be_cmd_pmac_add(adapter, mac,
2845                                                  vf_cfg->if_handle,
2846                                                  &vf_cfg->pmac_id, vf + 1);
2847                 else
2848                         status = be_cmd_set_mac(adapter, mac, vf_cfg->if_handle,
2849                                                 vf + 1);
2850
2851                 if (status)
2852                         dev_err(&adapter->pdev->dev,
2853                         "Mac address assignment failed for VF %d\n", vf);
2854                 else
2855                         memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2856
2857                 mac[5] += 1;
2858         }
2859         return status;
2860 }
2861
2862 static int be_vfs_mac_query(struct be_adapter *adapter)
2863 {
2864         int status, vf;
2865         u8 mac[ETH_ALEN];
2866         struct be_vf_cfg *vf_cfg;
2867         bool active = false;
2868
2869         for_all_vfs(adapter, vf_cfg, vf) {
2870                 be_cmd_get_mac_from_list(adapter, mac, &active,
2871                                          &vf_cfg->pmac_id, 0);
2872
2873                 status = be_cmd_mac_addr_query(adapter, mac, false,
2874                                                vf_cfg->if_handle, 0);
2875                 if (status)
2876                         return status;
2877                 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2878         }
2879         return 0;
2880 }
2881
2882 static void be_vf_clear(struct be_adapter *adapter)
2883 {
2884         struct be_vf_cfg *vf_cfg;
2885         u32 vf;
2886
2887         if (pci_vfs_assigned(adapter->pdev)) {
2888                 dev_warn(&adapter->pdev->dev,
2889                          "VFs are assigned to VMs: not disabling VFs\n");
2890                 goto done;
2891         }
2892
2893         pci_disable_sriov(adapter->pdev);
2894
2895         for_all_vfs(adapter, vf_cfg, vf) {
2896                 if (BEx_chip(adapter))
2897                         be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2898                                         vf_cfg->pmac_id, vf + 1);
2899                 else
2900                         be_cmd_set_mac(adapter, NULL, vf_cfg->if_handle,
2901                                        vf + 1);
2902
2903                 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2904         }
2905 done:
2906         kfree(adapter->vf_cfg);
2907         adapter->num_vfs = 0;
2908 }
2909
2910 static void be_clear_queues(struct be_adapter *adapter)
2911 {
2912         be_mcc_queues_destroy(adapter);
2913         be_rx_cqs_destroy(adapter);
2914         be_tx_queues_destroy(adapter);
2915         be_evt_queues_destroy(adapter);
2916 }
2917
2918 static void be_cancel_worker(struct be_adapter *adapter)
2919 {
2920         if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2921                 cancel_delayed_work_sync(&adapter->work);
2922                 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2923         }
2924 }
2925
2926 static int be_clear(struct be_adapter *adapter)
2927 {
2928         int i;
2929
2930         be_cancel_worker(adapter);
2931
2932         if (sriov_enabled(adapter))
2933                 be_vf_clear(adapter);
2934
2935         /* delete the primary mac along with the uc-mac list */
2936         for (i = 0; i < (adapter->uc_macs + 1); i++)
2937                 be_cmd_pmac_del(adapter, adapter->if_handle,
2938                                 adapter->pmac_id[i], 0);
2939         adapter->uc_macs = 0;
2940
2941         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
2942
2943         be_clear_queues(adapter);
2944
2945         kfree(adapter->pmac_id);
2946         adapter->pmac_id = NULL;
2947
2948         be_msix_disable(adapter);
2949         return 0;
2950 }
2951
2952 static int be_vfs_if_create(struct be_adapter *adapter)
2953 {
2954         struct be_resources res = {0};
2955         struct be_vf_cfg *vf_cfg;
2956         u32 cap_flags, en_flags, vf;
2957         int status = 0;
2958
2959         cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2960                     BE_IF_FLAGS_MULTICAST;
2961
2962         for_all_vfs(adapter, vf_cfg, vf) {
2963                 if (!BE3_chip(adapter)) {
2964                         status = be_cmd_get_profile_config(adapter, &res,
2965                                                            vf + 1);
2966                         if (!status)
2967                                 cap_flags = res.if_cap_flags;
2968                 }
2969
2970                 /* If a FW profile exists, then cap_flags are updated */
2971                 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2972                            BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2973                 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2974                                           &vf_cfg->if_handle, vf + 1);
2975                 if (status)
2976                         goto err;
2977         }
2978 err:
2979         return status;
2980 }
2981
2982 static int be_vf_setup_init(struct be_adapter *adapter)
2983 {
2984         struct be_vf_cfg *vf_cfg;
2985         int vf;
2986
2987         adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2988                                   GFP_KERNEL);
2989         if (!adapter->vf_cfg)
2990                 return -ENOMEM;
2991
2992         for_all_vfs(adapter, vf_cfg, vf) {
2993                 vf_cfg->if_handle = -1;
2994                 vf_cfg->pmac_id = -1;
2995         }
2996         return 0;
2997 }
2998
2999 static int be_vf_setup(struct be_adapter *adapter)
3000 {
3001         struct be_vf_cfg *vf_cfg;
3002         u16 def_vlan, lnk_speed;
3003         int status, old_vfs, vf;
3004         struct device *dev = &adapter->pdev->dev;
3005         u32 privileges;
3006
3007         old_vfs = pci_num_vf(adapter->pdev);
3008         if (old_vfs) {
3009                 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
3010                 if (old_vfs != num_vfs)
3011                         dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
3012                 adapter->num_vfs = old_vfs;
3013         } else {
3014                 if (num_vfs > be_max_vfs(adapter))
3015                         dev_info(dev, "Device supports %d VFs and not %d\n",
3016                                  be_max_vfs(adapter), num_vfs);
3017                 adapter->num_vfs = min_t(u16, num_vfs, be_max_vfs(adapter));
3018                 if (!adapter->num_vfs)
3019                         return 0;
3020         }
3021
3022         status = be_vf_setup_init(adapter);
3023         if (status)
3024                 goto err;
3025
3026         if (old_vfs) {
3027                 for_all_vfs(adapter, vf_cfg, vf) {
3028                         status = be_cmd_get_if_id(adapter, vf_cfg, vf);
3029                         if (status)
3030                                 goto err;
3031                 }
3032         } else {
3033                 status = be_vfs_if_create(adapter);
3034                 if (status)
3035                         goto err;
3036         }
3037
3038         if (old_vfs) {
3039                 status = be_vfs_mac_query(adapter);
3040                 if (status)
3041                         goto err;
3042         } else {
3043                 status = be_vf_eth_addr_config(adapter);
3044                 if (status)
3045                         goto err;
3046         }
3047
3048         for_all_vfs(adapter, vf_cfg, vf) {
3049                 /* Allow VFs to programs MAC/VLAN filters */
3050                 status = be_cmd_get_fn_privileges(adapter, &privileges, vf + 1);
3051                 if (!status && !(privileges & BE_PRIV_FILTMGMT)) {
3052                         status = be_cmd_set_fn_privileges(adapter,
3053                                                           privileges |
3054                                                           BE_PRIV_FILTMGMT,
3055                                                           vf + 1);
3056                         if (!status)
3057                                 dev_info(dev, "VF%d has FILTMGMT privilege\n",
3058                                          vf);
3059                 }
3060
3061                 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
3062                  * Allow full available bandwidth
3063                  */
3064                 if (BE3_chip(adapter) && !old_vfs)
3065                         be_cmd_set_qos(adapter, 1000, vf+1);
3066
3067                 status = be_cmd_link_status_query(adapter, &lnk_speed,
3068                                                   NULL, vf + 1);
3069                 if (!status)
3070                         vf_cfg->tx_rate = lnk_speed;
3071
3072                 status = be_cmd_get_hsw_config(adapter, &def_vlan,
3073                                                vf + 1, vf_cfg->if_handle, NULL);
3074                 if (status)
3075                         goto err;
3076                 vf_cfg->def_vid = def_vlan;
3077
3078                 if (!old_vfs)
3079                         be_cmd_enable_vf(adapter, vf + 1);
3080         }
3081
3082         if (!old_vfs) {
3083                 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
3084                 if (status) {
3085                         dev_err(dev, "SRIOV enable failed\n");
3086                         adapter->num_vfs = 0;
3087                         goto err;
3088                 }
3089         }
3090         return 0;
3091 err:
3092         dev_err(dev, "VF setup failed\n");
3093         be_vf_clear(adapter);
3094         return status;
3095 }
3096
3097 /* On BE2/BE3 FW does not suggest the supported limits */
3098 static void BEx_get_resources(struct be_adapter *adapter,
3099                               struct be_resources *res)
3100 {
3101         struct pci_dev *pdev = adapter->pdev;
3102         bool use_sriov = false;
3103
3104         if (BE3_chip(adapter) && sriov_want(adapter)) {
3105                 int max_vfs;
3106
3107                 max_vfs = pci_sriov_get_totalvfs(pdev);
3108                 res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
3109                 use_sriov = res->max_vfs;
3110         }
3111
3112         if (be_physfn(adapter))
3113                 res->max_uc_mac = BE_UC_PMAC_COUNT;
3114         else
3115                 res->max_uc_mac = BE_VF_UC_PMAC_COUNT;
3116
3117         if (adapter->function_mode & FLEX10_MODE)
3118                 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3119         else if (adapter->function_mode & UMC_ENABLED)
3120                 res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
3121         else
3122                 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
3123         res->max_mcast_mac = BE_MAX_MC;
3124
3125         /* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
3126         if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
3127             !be_physfn(adapter) || (adapter->port_num > 1))
3128                 res->max_tx_qs = 1;
3129         else
3130                 res->max_tx_qs = BE3_MAX_TX_QS;
3131
3132         if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
3133             !use_sriov && be_physfn(adapter))
3134                 res->max_rss_qs = (adapter->be3_native) ?
3135                                            BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3136         res->max_rx_qs = res->max_rss_qs + 1;
3137
3138         res->max_evt_qs = be_physfn(adapter) ? BE3_MAX_EVT_QS : 1;
3139
3140         res->if_cap_flags = BE_IF_CAP_FLAGS_WANT;
3141         if (!(adapter->function_caps & BE_FUNCTION_CAPS_RSS))
3142                 res->if_cap_flags &= ~BE_IF_FLAGS_RSS;
3143 }
3144
3145 static void be_setup_init(struct be_adapter *adapter)
3146 {
3147         adapter->vlan_prio_bmap = 0xff;
3148         adapter->phy.link_speed = -1;
3149         adapter->if_handle = -1;
3150         adapter->be3_native = false;
3151         adapter->promiscuous = false;
3152         if (be_physfn(adapter))
3153                 adapter->cmd_privileges = MAX_PRIVILEGES;
3154         else
3155                 adapter->cmd_privileges = MIN_PRIVILEGES;
3156 }
3157
3158 static int be_get_resources(struct be_adapter *adapter)
3159 {
3160         struct device *dev = &adapter->pdev->dev;
3161         struct be_resources res = {0};
3162         int status;
3163
3164         if (BEx_chip(adapter)) {
3165                 BEx_get_resources(adapter, &res);
3166                 adapter->res = res;
3167         }
3168
3169         /* For Lancer, SH etc read per-function resource limits from FW.
3170          * GET_FUNC_CONFIG returns per function guaranteed limits.
3171          * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
3172          */
3173         if (!BEx_chip(adapter)) {
3174                 status = be_cmd_get_func_config(adapter, &res);
3175                 if (status)
3176                         return status;
3177
3178                 /* If RoCE may be enabled stash away half the EQs for RoCE */
3179                 if (be_roce_supported(adapter))
3180                         res.max_evt_qs /= 2;
3181                 adapter->res = res;
3182
3183                 if (be_physfn(adapter)) {
3184                         status = be_cmd_get_profile_config(adapter, &res, 0);
3185                         if (status)
3186                                 return status;
3187                         adapter->res.max_vfs = res.max_vfs;
3188                 }
3189
3190                 dev_info(dev, "Max: txqs %d, rxqs %d, rss %d, eqs %d, vfs %d\n",
3191                          be_max_txqs(adapter), be_max_rxqs(adapter),
3192                          be_max_rss(adapter), be_max_eqs(adapter),
3193                          be_max_vfs(adapter));
3194                 dev_info(dev, "Max: uc-macs %d, mc-macs %d, vlans %d\n",
3195                          be_max_uc(adapter), be_max_mc(adapter),
3196                          be_max_vlans(adapter));
3197         }
3198
3199         return 0;
3200 }
3201
3202 /* Routine to query per function resource limits */
3203 static int be_get_config(struct be_adapter *adapter)
3204 {
3205         int status;
3206
3207         status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3208                                      &adapter->function_mode,
3209                                      &adapter->function_caps,
3210                                      &adapter->asic_rev);
3211         if (status)
3212                 return status;
3213
3214         status = be_get_resources(adapter);
3215         if (status)
3216                 return status;
3217
3218         /* primary mac needs 1 pmac entry */
3219         adapter->pmac_id = kcalloc(be_max_uc(adapter) + 1, sizeof(u32),
3220                                    GFP_KERNEL);
3221         if (!adapter->pmac_id)
3222                 return -ENOMEM;
3223
3224         /* Sanitize cfg_num_qs based on HW and platform limits */
3225         adapter->cfg_num_qs = min(adapter->cfg_num_qs, be_max_qs(adapter));
3226
3227         return 0;
3228 }
3229
3230 static int be_mac_setup(struct be_adapter *adapter)
3231 {
3232         u8 mac[ETH_ALEN];
3233         int status;
3234
3235         if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3236                 status = be_cmd_get_perm_mac(adapter, mac);
3237                 if (status)
3238                         return status;
3239
3240                 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3241                 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3242         } else {
3243                 /* Maybe the HW was reset; dev_addr must be re-programmed */
3244                 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
3245         }
3246
3247         /* On BE3 VFs this cmd may fail due to lack of privilege.
3248          * Ignore the failure as in this case pmac_id is fetched
3249          * in the IFACE_CREATE cmd.
3250          */
3251         be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3252                         &adapter->pmac_id[0], 0);
3253         return 0;
3254 }
3255
3256 static void be_schedule_worker(struct be_adapter *adapter)
3257 {
3258         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3259         adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3260 }
3261
3262 static int be_setup_queues(struct be_adapter *adapter)
3263 {
3264         struct net_device *netdev = adapter->netdev;
3265         int status;
3266
3267         status = be_evt_queues_create(adapter);
3268         if (status)
3269                 goto err;
3270
3271         status = be_tx_qs_create(adapter);
3272         if (status)
3273                 goto err;
3274
3275         status = be_rx_cqs_create(adapter);
3276         if (status)
3277                 goto err;
3278
3279         status = be_mcc_queues_create(adapter);
3280         if (status)
3281                 goto err;
3282
3283         status = netif_set_real_num_rx_queues(netdev, adapter->num_rx_qs);
3284         if (status)
3285                 goto err;
3286
3287         status = netif_set_real_num_tx_queues(netdev, adapter->num_tx_qs);
3288         if (status)
3289                 goto err;
3290
3291         return 0;
3292 err:
3293         dev_err(&adapter->pdev->dev, "queue_setup failed\n");
3294         return status;
3295 }
3296
3297 int be_update_queues(struct be_adapter *adapter)
3298 {
3299         struct net_device *netdev = adapter->netdev;
3300         int status;
3301
3302         if (netif_running(netdev))
3303                 be_close(netdev);
3304
3305         be_cancel_worker(adapter);
3306
3307         /* If any vectors have been shared with RoCE we cannot re-program
3308          * the MSIx table.
3309          */
3310         if (!adapter->num_msix_roce_vec)
3311                 be_msix_disable(adapter);
3312
3313         be_clear_queues(adapter);
3314
3315         if (!msix_enabled(adapter)) {
3316                 status = be_msix_enable(adapter);
3317                 if (status)
3318                         return status;
3319         }
3320
3321         status = be_setup_queues(adapter);
3322         if (status)
3323                 return status;
3324
3325         be_schedule_worker(adapter);
3326
3327         if (netif_running(netdev))
3328                 status = be_open(netdev);
3329
3330         return status;
3331 }
3332
3333 static int be_setup(struct be_adapter *adapter)
3334 {
3335         struct device *dev = &adapter->pdev->dev;
3336         u32 tx_fc, rx_fc, en_flags;
3337         int status;
3338
3339         be_setup_init(adapter);
3340
3341         if (!lancer_chip(adapter))
3342                 be_cmd_req_native_mode(adapter);
3343
3344         status = be_get_config(adapter);
3345         if (status)
3346                 goto err;
3347
3348         status = be_msix_enable(adapter);
3349         if (status)
3350                 goto err;
3351
3352         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3353                    BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3354         if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3355                 en_flags |= BE_IF_FLAGS_RSS;
3356         en_flags = en_flags & be_if_cap_flags(adapter);
3357         status = be_cmd_if_create(adapter, be_if_cap_flags(adapter), en_flags,
3358                                   &adapter->if_handle, 0);
3359         if (status)
3360                 goto err;
3361
3362         /* Updating real_num_tx/rx_queues() requires rtnl_lock() */
3363         rtnl_lock();
3364         status = be_setup_queues(adapter);
3365         rtnl_unlock();
3366         if (status)
3367                 goto err;
3368
3369         be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3370         /* In UMC mode FW does not return right privileges.
3371          * Override with correct privilege equivalent to PF.
3372          */
3373         if (be_is_mc(adapter))
3374                 adapter->cmd_privileges = MAX_PRIVILEGES;
3375
3376         status = be_mac_setup(adapter);
3377         if (status)
3378                 goto err;
3379
3380         be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3381
3382         if (adapter->vlans_added)
3383                 be_vid_config(adapter);
3384
3385         be_set_rx_mode(adapter->netdev);
3386
3387         be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3388
3389         if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3390                 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3391                                         adapter->rx_fc);
3392
3393         if (sriov_want(adapter)) {
3394                 if (be_max_vfs(adapter))
3395                         be_vf_setup(adapter);
3396                 else
3397                         dev_warn(dev, "device doesn't support SRIOV\n");
3398         }
3399
3400         status = be_cmd_get_phy_info(adapter);
3401         if (!status && be_pause_supported(adapter))
3402                 adapter->phy.fc_autoneg = 1;
3403
3404         be_schedule_worker(adapter);
3405         return 0;
3406 err:
3407         be_clear(adapter);
3408         return status;
3409 }
3410
3411 #ifdef CONFIG_NET_POLL_CONTROLLER
3412 static void be_netpoll(struct net_device *netdev)
3413 {
3414         struct be_adapter *adapter = netdev_priv(netdev);
3415         struct be_eq_obj *eqo;
3416         int i;
3417
3418         for_all_evt_queues(adapter, eqo, i) {
3419                 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3420                 napi_schedule(&eqo->napi);
3421         }
3422
3423         return;
3424 }
3425 #endif
3426
3427 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
3428 static char flash_cookie[2][16] =      {"*** SE FLAS", "H DIRECTORY *** "};
3429
3430 static bool be_flash_redboot(struct be_adapter *adapter,
3431                         const u8 *p, u32 img_start, int image_size,
3432                         int hdr_size)
3433 {
3434         u32 crc_offset;
3435         u8 flashed_crc[4];
3436         int status;
3437
3438         crc_offset = hdr_size + img_start + image_size - 4;
3439
3440         p += crc_offset;
3441
3442         status = be_cmd_get_flash_crc(adapter, flashed_crc,
3443                         (image_size - 4));
3444         if (status) {
3445                 dev_err(&adapter->pdev->dev,
3446                 "could not get crc from flash, not flashing redboot\n");
3447                 return false;
3448         }
3449
3450         /*update redboot only if crc does not match*/
3451         if (!memcmp(flashed_crc, p, 4))
3452                 return false;
3453         else
3454                 return true;
3455 }
3456
3457 static bool phy_flashing_required(struct be_adapter *adapter)
3458 {
3459         return (adapter->phy.phy_type == TN_8022 &&
3460                 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3461 }
3462
3463 static bool is_comp_in_ufi(struct be_adapter *adapter,
3464                            struct flash_section_info *fsec, int type)
3465 {
3466         int i = 0, img_type = 0;
3467         struct flash_section_info_g2 *fsec_g2 = NULL;
3468
3469         if (BE2_chip(adapter))
3470                 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3471
3472         for (i = 0; i < MAX_FLASH_COMP; i++) {
3473                 if (fsec_g2)
3474                         img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3475                 else
3476                         img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3477
3478                 if (img_type == type)
3479                         return true;
3480         }
3481         return false;
3482
3483 }
3484
3485 static struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3486                                          int header_size,
3487                                          const struct firmware *fw)
3488 {
3489         struct flash_section_info *fsec = NULL;
3490         const u8 *p = fw->data;
3491
3492         p += header_size;
3493         while (p < (fw->data + fw->size)) {
3494                 fsec = (struct flash_section_info *)p;
3495                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3496                         return fsec;
3497                 p += 32;
3498         }
3499         return NULL;
3500 }
3501
3502 static int be_flash(struct be_adapter *adapter, const u8 *img,
3503                 struct be_dma_mem *flash_cmd, int optype, int img_size)
3504 {
3505         u32 total_bytes = 0, flash_op, num_bytes = 0;
3506         int status = 0;
3507         struct be_cmd_write_flashrom *req = flash_cmd->va;
3508
3509         total_bytes = img_size;
3510         while (total_bytes) {
3511                 num_bytes = min_t(u32, 32*1024, total_bytes);
3512
3513                 total_bytes -= num_bytes;
3514
3515                 if (!total_bytes) {
3516                         if (optype == OPTYPE_PHY_FW)
3517                                 flash_op = FLASHROM_OPER_PHY_FLASH;
3518                         else
3519                                 flash_op = FLASHROM_OPER_FLASH;
3520                 } else {
3521                         if (optype == OPTYPE_PHY_FW)
3522                                 flash_op = FLASHROM_OPER_PHY_SAVE;
3523                         else
3524                                 flash_op = FLASHROM_OPER_SAVE;
3525                 }
3526
3527                 memcpy(req->data_buf, img, num_bytes);
3528                 img += num_bytes;
3529                 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3530                                                 flash_op, num_bytes);
3531                 if (status) {
3532                         if (status == ILLEGAL_IOCTL_REQ &&
3533                             optype == OPTYPE_PHY_FW)
3534                                 break;
3535                         dev_err(&adapter->pdev->dev,
3536                                 "cmd to write to flash rom failed.\n");
3537                         return status;
3538                 }
3539         }
3540         return 0;
3541 }
3542
3543 /* For BE2, BE3 and BE3-R */
3544 static int be_flash_BEx(struct be_adapter *adapter,
3545                          const struct firmware *fw,
3546                          struct be_dma_mem *flash_cmd,
3547                          int num_of_images)
3548
3549 {
3550         int status = 0, i, filehdr_size = 0;
3551         int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3552         const u8 *p = fw->data;
3553         const struct flash_comp *pflashcomp;
3554         int num_comp, redboot;
3555         struct flash_section_info *fsec = NULL;
3556
3557         struct flash_comp gen3_flash_types[] = {
3558                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3559                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3560                 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3561                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3562                 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3563                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3564                 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3565                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3566                 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3567                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3568                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3569                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3570                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3571                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3572                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3573                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3574                 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3575                         FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3576                 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3577                         FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3578         };
3579
3580         struct flash_comp gen2_flash_types[] = {
3581                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3582                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3583                 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3584                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3585                 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3586                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3587                 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3588                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3589                 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3590                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3591                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3592                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3593                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3594                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3595                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3596                          FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3597         };
3598
3599         if (BE3_chip(adapter)) {
3600                 pflashcomp = gen3_flash_types;
3601                 filehdr_size = sizeof(struct flash_file_hdr_g3);
3602                 num_comp = ARRAY_SIZE(gen3_flash_types);
3603         } else {
3604                 pflashcomp = gen2_flash_types;
3605                 filehdr_size = sizeof(struct flash_file_hdr_g2);
3606                 num_comp = ARRAY_SIZE(gen2_flash_types);
3607         }
3608
3609         /* Get flash section info*/
3610         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3611         if (!fsec) {
3612                 dev_err(&adapter->pdev->dev,
3613                         "Invalid Cookie. UFI corrupted ?\n");
3614                 return -1;
3615         }
3616         for (i = 0; i < num_comp; i++) {
3617                 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3618                         continue;
3619
3620                 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3621                     memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3622                         continue;
3623
3624                 if (pflashcomp[i].optype == OPTYPE_PHY_FW  &&
3625                     !phy_flashing_required(adapter))
3626                                 continue;
3627
3628                 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3629                         redboot = be_flash_redboot(adapter, fw->data,
3630                                 pflashcomp[i].offset, pflashcomp[i].size,
3631                                 filehdr_size + img_hdrs_size);
3632                         if (!redboot)
3633                                 continue;
3634                 }
3635
3636                 p = fw->data;
3637                 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3638                 if (p + pflashcomp[i].size > fw->data + fw->size)
3639                         return -1;
3640
3641                 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3642                                         pflashcomp[i].size);
3643                 if (status) {
3644                         dev_err(&adapter->pdev->dev,
3645                                 "Flashing section type %d failed.\n",
3646                                 pflashcomp[i].img_type);
3647                         return status;
3648                 }
3649         }
3650         return 0;
3651 }
3652
3653 static int be_flash_skyhawk(struct be_adapter *adapter,
3654                 const struct firmware *fw,
3655                 struct be_dma_mem *flash_cmd, int num_of_images)
3656 {
3657         int status = 0, i, filehdr_size = 0;
3658         int img_offset, img_size, img_optype, redboot;
3659         int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3660         const u8 *p = fw->data;
3661         struct flash_section_info *fsec = NULL;
3662
3663         filehdr_size = sizeof(struct flash_file_hdr_g3);
3664         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3665         if (!fsec) {
3666                 dev_err(&adapter->pdev->dev,
3667                         "Invalid Cookie. UFI corrupted ?\n");
3668                 return -1;
3669         }
3670
3671         for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3672                 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3673                 img_size   = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3674
3675                 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3676                 case IMAGE_FIRMWARE_iSCSI:
3677                         img_optype = OPTYPE_ISCSI_ACTIVE;
3678                         break;
3679                 case IMAGE_BOOT_CODE:
3680                         img_optype = OPTYPE_REDBOOT;
3681                         break;
3682                 case IMAGE_OPTION_ROM_ISCSI:
3683                         img_optype = OPTYPE_BIOS;
3684                         break;
3685                 case IMAGE_OPTION_ROM_PXE:
3686                         img_optype = OPTYPE_PXE_BIOS;
3687                         break;
3688                 case IMAGE_OPTION_ROM_FCoE:
3689                         img_optype = OPTYPE_FCOE_BIOS;
3690                         break;
3691                 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3692                         img_optype = OPTYPE_ISCSI_BACKUP;
3693                         break;
3694                 case IMAGE_NCSI:
3695                         img_optype = OPTYPE_NCSI_FW;
3696                         break;
3697                 default:
3698                         continue;
3699                 }
3700
3701                 if (img_optype == OPTYPE_REDBOOT) {
3702                         redboot = be_flash_redboot(adapter, fw->data,
3703                                         img_offset, img_size,
3704                                         filehdr_size + img_hdrs_size);
3705                         if (!redboot)
3706                                 continue;
3707                 }
3708
3709                 p = fw->data;
3710                 p += filehdr_size + img_offset + img_hdrs_size;
3711                 if (p + img_size > fw->data + fw->size)
3712                         return -1;
3713
3714                 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3715                 if (status) {
3716                         dev_err(&adapter->pdev->dev,
3717                                 "Flashing section type %d failed.\n",
3718                                 fsec->fsec_entry[i].type);
3719                         return status;
3720                 }
3721         }
3722         return 0;
3723 }
3724
3725 static int lancer_fw_download(struct be_adapter *adapter,
3726                                 const struct firmware *fw)
3727 {
3728 #define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
3729 #define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
3730         struct be_dma_mem flash_cmd;
3731         const u8 *data_ptr = NULL;
3732         u8 *dest_image_ptr = NULL;
3733         size_t image_size = 0;
3734         u32 chunk_size = 0;
3735         u32 data_written = 0;
3736         u32 offset = 0;
3737         int status = 0;
3738         u8 add_status = 0;
3739         u8 change_status;
3740
3741         if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3742                 dev_err(&adapter->pdev->dev,
3743                         "FW Image not properly aligned. "
3744                         "Length must be 4 byte aligned.\n");
3745                 status = -EINVAL;
3746                 goto lancer_fw_exit;
3747         }
3748
3749         flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3750                                 + LANCER_FW_DOWNLOAD_CHUNK;
3751         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3752                                           &flash_cmd.dma, GFP_KERNEL);
3753         if (!flash_cmd.va) {
3754                 status = -ENOMEM;
3755                 goto lancer_fw_exit;
3756         }
3757
3758         dest_image_ptr = flash_cmd.va +
3759                                 sizeof(struct lancer_cmd_req_write_object);
3760         image_size = fw->size;
3761         data_ptr = fw->data;
3762
3763         while (image_size) {
3764                 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3765
3766                 /* Copy the image chunk content. */
3767                 memcpy(dest_image_ptr, data_ptr, chunk_size);
3768
3769                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3770                                                  chunk_size, offset,
3771                                                  LANCER_FW_DOWNLOAD_LOCATION,
3772                                                  &data_written, &change_status,
3773                                                  &add_status);
3774                 if (status)
3775                         break;
3776
3777                 offset += data_written;
3778                 data_ptr += data_written;
3779                 image_size -= data_written;
3780         }
3781
3782         if (!status) {
3783                 /* Commit the FW written */
3784                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3785                                                  0, offset,
3786                                                  LANCER_FW_DOWNLOAD_LOCATION,
3787                                                  &data_written, &change_status,
3788                                                  &add_status);
3789         }
3790
3791         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3792                                 flash_cmd.dma);
3793         if (status) {
3794                 dev_err(&adapter->pdev->dev,
3795                         "Firmware load error. "
3796                         "Status code: 0x%x Additional Status: 0x%x\n",
3797                         status, add_status);
3798                 goto lancer_fw_exit;
3799         }
3800
3801         if (change_status == LANCER_FW_RESET_NEEDED) {
3802                 status = lancer_physdev_ctrl(adapter,
3803                                              PHYSDEV_CONTROL_FW_RESET_MASK);
3804                 if (status) {
3805                         dev_err(&adapter->pdev->dev,
3806                                 "Adapter busy for FW reset.\n"
3807                                 "New FW will not be active.\n");
3808                         goto lancer_fw_exit;
3809                 }
3810         } else if (change_status != LANCER_NO_RESET_NEEDED) {
3811                         dev_err(&adapter->pdev->dev,
3812                                 "System reboot required for new FW"
3813                                 " to be active\n");
3814         }
3815
3816         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3817 lancer_fw_exit:
3818         return status;
3819 }
3820
3821 #define UFI_TYPE2               2
3822 #define UFI_TYPE3               3
3823 #define UFI_TYPE3R              10
3824 #define UFI_TYPE4               4
3825 static int be_get_ufi_type(struct be_adapter *adapter,
3826                            struct flash_file_hdr_g3 *fhdr)
3827 {
3828         if (fhdr == NULL)
3829                 goto be_get_ufi_exit;
3830
3831         if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3832                 return UFI_TYPE4;
3833         else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3834                 if (fhdr->asic_type_rev == 0x10)
3835                         return UFI_TYPE3R;
3836                 else
3837                         return UFI_TYPE3;
3838         } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3839                 return UFI_TYPE2;
3840
3841 be_get_ufi_exit:
3842         dev_err(&adapter->pdev->dev,
3843                 "UFI and Interface are not compatible for flashing\n");
3844         return -1;
3845 }
3846
3847 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3848 {
3849         struct flash_file_hdr_g3 *fhdr3;
3850         struct image_hdr *img_hdr_ptr = NULL;
3851         struct be_dma_mem flash_cmd;
3852         const u8 *p;
3853         int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3854
3855         flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3856         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3857                                           &flash_cmd.dma, GFP_KERNEL);
3858         if (!flash_cmd.va) {
3859                 status = -ENOMEM;
3860                 goto be_fw_exit;
3861         }
3862
3863         p = fw->data;
3864         fhdr3 = (struct flash_file_hdr_g3 *)p;
3865
3866         ufi_type = be_get_ufi_type(adapter, fhdr3);
3867
3868         num_imgs = le32_to_cpu(fhdr3->num_imgs);
3869         for (i = 0; i < num_imgs; i++) {
3870                 img_hdr_ptr = (struct image_hdr *)(fw->data +
3871                                 (sizeof(struct flash_file_hdr_g3) +
3872                                  i * sizeof(struct image_hdr)));
3873                 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3874                         switch (ufi_type) {
3875                         case UFI_TYPE4:
3876                                 status = be_flash_skyhawk(adapter, fw,
3877                                                         &flash_cmd, num_imgs);
3878                                 break;
3879                         case UFI_TYPE3R:
3880                                 status = be_flash_BEx(adapter, fw, &flash_cmd,
3881                                                       num_imgs);
3882                                 break;
3883                         case UFI_TYPE3:
3884                                 /* Do not flash this ufi on BE3-R cards */
3885                                 if (adapter->asic_rev < 0x10)
3886                                         status = be_flash_BEx(adapter, fw,
3887                                                               &flash_cmd,
3888                                                               num_imgs);
3889                                 else {
3890                                         status = -1;
3891                                         dev_err(&adapter->pdev->dev,
3892                                                 "Can't load BE3 UFI on BE3R\n");
3893                                 }
3894                         }
3895                 }
3896         }
3897
3898         if (ufi_type == UFI_TYPE2)
3899                 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3900         else if (ufi_type == -1)
3901                 status = -1;
3902
3903         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3904                           flash_cmd.dma);
3905         if (status) {
3906                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3907                 goto be_fw_exit;
3908         }
3909
3910         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3911
3912 be_fw_exit:
3913         return status;
3914 }
3915
3916 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3917 {
3918         const struct firmware *fw;
3919         int status;
3920
3921         if (!netif_running(adapter->netdev)) {
3922                 dev_err(&adapter->pdev->dev,
3923                         "Firmware load not allowed (interface is down)\n");
3924                 return -1;
3925         }
3926
3927         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3928         if (status)
3929                 goto fw_exit;
3930
3931         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3932
3933         if (lancer_chip(adapter))
3934                 status = lancer_fw_download(adapter, fw);
3935         else
3936                 status = be_fw_download(adapter, fw);
3937
3938         if (!status)
3939                 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3940                                   adapter->fw_on_flash);
3941
3942 fw_exit:
3943         release_firmware(fw);
3944         return status;
3945 }
3946
3947 static int be_ndo_bridge_setlink(struct net_device *dev,
3948                                     struct nlmsghdr *nlh)
3949 {
3950         struct be_adapter *adapter = netdev_priv(dev);
3951         struct nlattr *attr, *br_spec;
3952         int rem;
3953         int status = 0;
3954         u16 mode = 0;
3955
3956         if (!sriov_enabled(adapter))
3957                 return -EOPNOTSUPP;
3958
3959         br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
3960
3961         nla_for_each_nested(attr, br_spec, rem) {
3962                 if (nla_type(attr) != IFLA_BRIDGE_MODE)
3963                         continue;
3964
3965                 mode = nla_get_u16(attr);
3966                 if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
3967                         return -EINVAL;
3968
3969                 status = be_cmd_set_hsw_config(adapter, 0, 0,
3970                                                adapter->if_handle,
3971                                                mode == BRIDGE_MODE_VEPA ?
3972                                                PORT_FWD_TYPE_VEPA :
3973                                                PORT_FWD_TYPE_VEB);
3974                 if (status)
3975                         goto err;
3976
3977                 dev_info(&adapter->pdev->dev, "enabled switch mode: %s\n",
3978                          mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3979
3980                 return status;
3981         }
3982 err:
3983         dev_err(&adapter->pdev->dev, "Failed to set switch mode %s\n",
3984                 mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
3985
3986         return status;
3987 }
3988
3989 static int be_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
3990                                     struct net_device *dev,
3991                                     u32 filter_mask)
3992 {
3993         struct be_adapter *adapter = netdev_priv(dev);
3994         int status = 0;
3995         u8 hsw_mode;
3996
3997         if (!sriov_enabled(adapter))
3998                 return 0;
3999
4000         /* BE and Lancer chips support VEB mode only */
4001         if (BEx_chip(adapter) || lancer_chip(adapter)) {
4002                 hsw_mode = PORT_FWD_TYPE_VEB;
4003         } else {
4004                 status = be_cmd_get_hsw_config(adapter, NULL, 0,
4005                                                adapter->if_handle, &hsw_mode);
4006                 if (status)
4007                         return 0;
4008         }
4009
4010         return ndo_dflt_bridge_getlink(skb, pid, seq, dev,
4011                                        hsw_mode == PORT_FWD_TYPE_VEPA ?
4012                                        BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB);
4013 }
4014
4015 static const struct net_device_ops be_netdev_ops = {
4016         .ndo_open               = be_open,
4017         .ndo_stop               = be_close,
4018         .ndo_start_xmit         = be_xmit,
4019         .ndo_set_rx_mode        = be_set_rx_mode,
4020         .ndo_set_mac_address    = be_mac_addr_set,
4021         .ndo_change_mtu         = be_change_mtu,
4022         .ndo_get_stats64        = be_get_stats64,
4023         .ndo_validate_addr      = eth_validate_addr,
4024         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
4025         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
4026         .ndo_set_vf_mac         = be_set_vf_mac,
4027         .ndo_set_vf_vlan        = be_set_vf_vlan,
4028         .ndo_set_vf_tx_rate     = be_set_vf_tx_rate,
4029         .ndo_get_vf_config      = be_get_vf_config,
4030 #ifdef CONFIG_NET_POLL_CONTROLLER
4031         .ndo_poll_controller    = be_netpoll,
4032 #endif
4033         .ndo_bridge_setlink     = be_ndo_bridge_setlink,
4034         .ndo_bridge_getlink     = be_ndo_bridge_getlink,
4035 #ifdef CONFIG_NET_RX_BUSY_POLL
4036         .ndo_busy_poll          = be_busy_poll
4037 #endif
4038 };
4039
4040 static void be_netdev_init(struct net_device *netdev)
4041 {
4042         struct be_adapter *adapter = netdev_priv(netdev);
4043
4044         netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4045                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
4046                 NETIF_F_HW_VLAN_CTAG_TX;
4047         if (be_multi_rxq(adapter))
4048                 netdev->hw_features |= NETIF_F_RXHASH;
4049
4050         netdev->features |= netdev->hw_features |
4051                 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
4052
4053         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
4054                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
4055
4056         netdev->priv_flags |= IFF_UNICAST_FLT;
4057
4058         netdev->flags |= IFF_MULTICAST;
4059
4060         netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
4061
4062         netdev->netdev_ops = &be_netdev_ops;
4063
4064         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
4065 }
4066
4067 static void be_unmap_pci_bars(struct be_adapter *adapter)
4068 {
4069         if (adapter->csr)
4070                 pci_iounmap(adapter->pdev, adapter->csr);
4071         if (adapter->db)
4072                 pci_iounmap(adapter->pdev, adapter->db);
4073 }
4074
4075 static int db_bar(struct be_adapter *adapter)
4076 {
4077         if (lancer_chip(adapter) || !be_physfn(adapter))
4078                 return 0;
4079         else
4080                 return 4;
4081 }
4082
4083 static int be_roce_map_pci_bars(struct be_adapter *adapter)
4084 {
4085         if (skyhawk_chip(adapter)) {
4086                 adapter->roce_db.size = 4096;
4087                 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
4088                                                               db_bar(adapter));
4089                 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
4090                                                                db_bar(adapter));
4091         }
4092         return 0;
4093 }
4094
4095 static int be_map_pci_bars(struct be_adapter *adapter)
4096 {
4097         u8 __iomem *addr;
4098
4099         if (BEx_chip(adapter) && be_physfn(adapter)) {
4100                 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
4101                 if (adapter->csr == NULL)
4102                         return -ENOMEM;
4103         }
4104
4105         addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
4106         if (addr == NULL)
4107                 goto pci_map_err;
4108         adapter->db = addr;
4109
4110         be_roce_map_pci_bars(adapter);
4111         return 0;
4112
4113 pci_map_err:
4114         be_unmap_pci_bars(adapter);
4115         return -ENOMEM;
4116 }
4117
4118 static void be_ctrl_cleanup(struct be_adapter *adapter)
4119 {
4120         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
4121
4122         be_unmap_pci_bars(adapter);
4123
4124         if (mem->va)
4125                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4126                                   mem->dma);
4127
4128         mem = &adapter->rx_filter;
4129         if (mem->va)
4130                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
4131                                   mem->dma);
4132 }
4133
4134 static int be_ctrl_init(struct be_adapter *adapter)
4135 {
4136         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
4137         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
4138         struct be_dma_mem *rx_filter = &adapter->rx_filter;
4139         u32 sli_intf;
4140         int status;
4141
4142         pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
4143         adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
4144                                  SLI_INTF_FAMILY_SHIFT;
4145         adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
4146
4147         status = be_map_pci_bars(adapter);
4148         if (status)
4149                 goto done;
4150
4151         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
4152         mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
4153                                                 mbox_mem_alloc->size,
4154                                                 &mbox_mem_alloc->dma,
4155                                                 GFP_KERNEL);
4156         if (!mbox_mem_alloc->va) {
4157                 status = -ENOMEM;
4158                 goto unmap_pci_bars;
4159         }
4160         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
4161         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
4162         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
4163         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
4164
4165         rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
4166         rx_filter->va = dma_zalloc_coherent(&adapter->pdev->dev,
4167                                             rx_filter->size, &rx_filter->dma,
4168                                             GFP_KERNEL);
4169         if (rx_filter->va == NULL) {
4170                 status = -ENOMEM;
4171                 goto free_mbox;
4172         }
4173
4174         mutex_init(&adapter->mbox_lock);
4175         spin_lock_init(&adapter->mcc_lock);
4176         spin_lock_init(&adapter->mcc_cq_lock);
4177
4178         init_completion(&adapter->flash_compl);
4179         pci_save_state(adapter->pdev);
4180         return 0;
4181
4182 free_mbox:
4183         dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
4184                           mbox_mem_alloc->va, mbox_mem_alloc->dma);
4185
4186 unmap_pci_bars:
4187         be_unmap_pci_bars(adapter);
4188
4189 done:
4190         return status;
4191 }
4192
4193 static void be_stats_cleanup(struct be_adapter *adapter)
4194 {
4195         struct be_dma_mem *cmd = &adapter->stats_cmd;
4196
4197         if (cmd->va)
4198                 dma_free_coherent(&adapter->pdev->dev, cmd->size,
4199                                   cmd->va, cmd->dma);
4200 }
4201
4202 static int be_stats_init(struct be_adapter *adapter)
4203 {
4204         struct be_dma_mem *cmd = &adapter->stats_cmd;
4205
4206         if (lancer_chip(adapter))
4207                 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
4208         else if (BE2_chip(adapter))
4209                 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
4210         else if (BE3_chip(adapter))
4211                 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
4212         else
4213                 /* ALL non-BE ASICs */
4214                 cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
4215
4216         cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
4217                                       GFP_KERNEL);
4218         if (cmd->va == NULL)
4219                 return -1;
4220         return 0;
4221 }
4222
4223 static void be_remove(struct pci_dev *pdev)
4224 {
4225         struct be_adapter *adapter = pci_get_drvdata(pdev);
4226
4227         if (!adapter)
4228                 return;
4229
4230         be_roce_dev_remove(adapter);
4231         be_intr_set(adapter, false);
4232
4233         cancel_delayed_work_sync(&adapter->func_recovery_work);
4234
4235         unregister_netdev(adapter->netdev);
4236
4237         be_clear(adapter);
4238
4239         /* tell fw we're done with firing cmds */
4240         be_cmd_fw_clean(adapter);
4241
4242         be_stats_cleanup(adapter);
4243
4244         be_ctrl_cleanup(adapter);
4245
4246         pci_disable_pcie_error_reporting(pdev);
4247
4248         pci_release_regions(pdev);
4249         pci_disable_device(pdev);
4250
4251         free_netdev(adapter->netdev);
4252 }
4253
4254 bool be_is_wol_supported(struct be_adapter *adapter)
4255 {
4256         return ((adapter->wol_cap & BE_WOL_CAP) &&
4257                 !be_is_wol_excluded(adapter)) ? true : false;
4258 }
4259
4260 u32 be_get_fw_log_level(struct be_adapter *adapter)
4261 {
4262         struct be_dma_mem extfat_cmd;
4263         struct be_fat_conf_params *cfgs;
4264         int status;
4265         u32 level = 0;
4266         int j;
4267
4268         if (lancer_chip(adapter))
4269                 return 0;
4270
4271         memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4272         extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4273         extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4274                                              &extfat_cmd.dma);
4275
4276         if (!extfat_cmd.va) {
4277                 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4278                         __func__);
4279                 goto err;
4280         }
4281
4282         status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4283         if (!status) {
4284                 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4285                                                 sizeof(struct be_cmd_resp_hdr));
4286                 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4287                         if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4288                                 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4289                 }
4290         }
4291         pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4292                             extfat_cmd.dma);
4293 err:
4294         return level;
4295 }
4296
4297 static int be_get_initial_config(struct be_adapter *adapter)
4298 {
4299         int status;
4300         u32 level;
4301
4302         status = be_cmd_get_cntl_attributes(adapter);
4303         if (status)
4304                 return status;
4305
4306         status = be_cmd_get_acpi_wol_cap(adapter);
4307         if (status) {
4308                 /* in case of a failure to get wol capabillities
4309                  * check the exclusion list to determine WOL capability */
4310                 if (!be_is_wol_excluded(adapter))
4311                         adapter->wol_cap |= BE_WOL_CAP;
4312         }
4313
4314         if (be_is_wol_supported(adapter))
4315                 adapter->wol = true;
4316
4317         /* Must be a power of 2 or else MODULO will BUG_ON */
4318         adapter->be_get_temp_freq = 64;
4319
4320         level = be_get_fw_log_level(adapter);
4321         adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4322
4323         adapter->cfg_num_qs = netif_get_num_default_rss_queues();
4324         return 0;
4325 }
4326
4327 static int lancer_recover_func(struct be_adapter *adapter)
4328 {
4329         struct device *dev = &adapter->pdev->dev;
4330         int status;
4331
4332         status = lancer_test_and_set_rdy_state(adapter);
4333         if (status)
4334                 goto err;
4335
4336         if (netif_running(adapter->netdev))
4337                 be_close(adapter->netdev);
4338
4339         be_clear(adapter);
4340
4341         be_clear_all_error(adapter);
4342
4343         status = be_setup(adapter);
4344         if (status)
4345                 goto err;
4346
4347         if (netif_running(adapter->netdev)) {
4348                 status = be_open(adapter->netdev);
4349                 if (status)
4350                         goto err;
4351         }
4352
4353         dev_err(dev, "Error recovery successful\n");
4354         return 0;
4355 err:
4356         if (status == -EAGAIN)
4357                 dev_err(dev, "Waiting for resource provisioning\n");
4358         else
4359                 dev_err(dev, "Error recovery failed\n");
4360
4361         return status;
4362 }
4363
4364 static void be_func_recovery_task(struct work_struct *work)
4365 {
4366         struct be_adapter *adapter =
4367                 container_of(work, struct be_adapter,  func_recovery_work.work);
4368         int status = 0;
4369
4370         be_detect_error(adapter);
4371
4372         if (adapter->hw_error && lancer_chip(adapter)) {
4373
4374                 rtnl_lock();
4375                 netif_device_detach(adapter->netdev);
4376                 rtnl_unlock();
4377
4378                 status = lancer_recover_func(adapter);
4379                 if (!status)
4380                         netif_device_attach(adapter->netdev);
4381         }
4382
4383         /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4384          * no need to attempt further recovery.
4385          */
4386         if (!status || status == -EAGAIN)
4387                 schedule_delayed_work(&adapter->func_recovery_work,
4388                                       msecs_to_jiffies(1000));
4389 }
4390
4391 static void be_worker(struct work_struct *work)
4392 {
4393         struct be_adapter *adapter =
4394                 container_of(work, struct be_adapter, work.work);
4395         struct be_rx_obj *rxo;
4396         int i;
4397
4398         /* when interrupts are not yet enabled, just reap any pending
4399         * mcc completions */
4400         if (!netif_running(adapter->netdev)) {
4401                 local_bh_disable();
4402                 be_process_mcc(adapter);
4403                 local_bh_enable();
4404                 goto reschedule;
4405         }
4406
4407         if (!adapter->stats_cmd_sent) {
4408                 if (lancer_chip(adapter))
4409                         lancer_cmd_get_pport_stats(adapter,
4410                                                 &adapter->stats_cmd);
4411                 else
4412                         be_cmd_get_stats(adapter, &adapter->stats_cmd);
4413         }
4414
4415         if (be_physfn(adapter) &&
4416             MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4417                 be_cmd_get_die_temperature(adapter);
4418
4419         for_all_rx_queues(adapter, rxo, i) {
4420                 /* Replenish RX-queues starved due to memory
4421                  * allocation failures.
4422                  */
4423                 if (rxo->rx_post_starved)
4424                         be_post_rx_frags(rxo, GFP_KERNEL);
4425         }
4426
4427         be_eqd_update(adapter);
4428
4429 reschedule:
4430         adapter->work_counter++;
4431         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4432 }
4433
4434 /* If any VFs are already enabled don't FLR the PF */
4435 static bool be_reset_required(struct be_adapter *adapter)
4436 {
4437         return pci_num_vf(adapter->pdev) ? false : true;
4438 }
4439
4440 static char *mc_name(struct be_adapter *adapter)
4441 {
4442         if (adapter->function_mode & FLEX10_MODE)
4443                 return "FLEX10";
4444         else if (adapter->function_mode & VNIC_MODE)
4445                 return "vNIC";
4446         else if (adapter->function_mode & UMC_ENABLED)
4447                 return "UMC";
4448         else
4449                 return "";
4450 }
4451
4452 static inline char *func_name(struct be_adapter *adapter)
4453 {
4454         return be_physfn(adapter) ? "PF" : "VF";
4455 }
4456
4457 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4458 {
4459         int status = 0;
4460         struct be_adapter *adapter;
4461         struct net_device *netdev;
4462         char port_name;
4463
4464         status = pci_enable_device(pdev);
4465         if (status)
4466                 goto do_none;
4467
4468         status = pci_request_regions(pdev, DRV_NAME);
4469         if (status)
4470                 goto disable_dev;
4471         pci_set_master(pdev);
4472
4473         netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4474         if (netdev == NULL) {
4475                 status = -ENOMEM;
4476                 goto rel_reg;
4477         }
4478         adapter = netdev_priv(netdev);
4479         adapter->pdev = pdev;
4480         pci_set_drvdata(pdev, adapter);
4481         adapter->netdev = netdev;
4482         SET_NETDEV_DEV(netdev, &pdev->dev);
4483
4484         status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4485         if (!status) {
4486                 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4487                 if (status < 0) {
4488                         dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4489                         goto free_netdev;
4490                 }
4491                 netdev->features |= NETIF_F_HIGHDMA;
4492         } else {
4493                 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4494                 if (!status)
4495                         status = dma_set_coherent_mask(&pdev->dev,
4496                                                        DMA_BIT_MASK(32));
4497                 if (status) {
4498                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4499                         goto free_netdev;
4500                 }
4501         }
4502
4503         if (be_physfn(adapter)) {
4504                 status = pci_enable_pcie_error_reporting(pdev);
4505                 if (!status)
4506                         dev_info(&pdev->dev, "PCIe error reporting enabled\n");
4507         }
4508
4509         status = be_ctrl_init(adapter);
4510         if (status)
4511                 goto free_netdev;
4512
4513         /* sync up with fw's ready state */
4514         if (be_physfn(adapter)) {
4515                 status = be_fw_wait_ready(adapter);
4516                 if (status)
4517                         goto ctrl_clean;
4518         }
4519
4520         if (be_reset_required(adapter)) {
4521                 status = be_cmd_reset_function(adapter);
4522                 if (status)
4523                         goto ctrl_clean;
4524
4525                 /* Wait for interrupts to quiesce after an FLR */
4526                 msleep(100);
4527         }
4528
4529         /* Allow interrupts for other ULPs running on NIC function */
4530         be_intr_set(adapter, true);
4531
4532         /* tell fw we're ready to fire cmds */
4533         status = be_cmd_fw_init(adapter);
4534         if (status)
4535                 goto ctrl_clean;
4536
4537         status = be_stats_init(adapter);
4538         if (status)
4539                 goto ctrl_clean;
4540
4541         status = be_get_initial_config(adapter);
4542         if (status)
4543                 goto stats_clean;
4544
4545         INIT_DELAYED_WORK(&adapter->work, be_worker);
4546         INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4547         adapter->rx_fc = adapter->tx_fc = true;
4548
4549         status = be_setup(adapter);
4550         if (status)
4551                 goto stats_clean;
4552
4553         be_netdev_init(netdev);
4554         status = register_netdev(netdev);
4555         if (status != 0)
4556                 goto unsetup;
4557
4558         be_roce_dev_add(adapter);
4559
4560         schedule_delayed_work(&adapter->func_recovery_work,
4561                               msecs_to_jiffies(1000));
4562
4563         be_cmd_query_port_name(adapter, &port_name);
4564
4565         dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4566                  func_name(adapter), mc_name(adapter), port_name);
4567
4568         return 0;
4569
4570 unsetup:
4571         be_clear(adapter);
4572 stats_clean:
4573         be_stats_cleanup(adapter);
4574 ctrl_clean:
4575         be_ctrl_cleanup(adapter);
4576 free_netdev:
4577         free_netdev(netdev);
4578 rel_reg:
4579         pci_release_regions(pdev);
4580 disable_dev:
4581         pci_disable_device(pdev);
4582 do_none:
4583         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4584         return status;
4585 }
4586
4587 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4588 {
4589         struct be_adapter *adapter = pci_get_drvdata(pdev);
4590         struct net_device *netdev =  adapter->netdev;
4591
4592         if (adapter->wol)
4593                 be_setup_wol(adapter, true);
4594
4595         cancel_delayed_work_sync(&adapter->func_recovery_work);
4596
4597         netif_device_detach(netdev);
4598         if (netif_running(netdev)) {
4599                 rtnl_lock();
4600                 be_close(netdev);
4601                 rtnl_unlock();
4602         }
4603         be_clear(adapter);
4604
4605         pci_save_state(pdev);
4606         pci_disable_device(pdev);
4607         pci_set_power_state(pdev, pci_choose_state(pdev, state));
4608         return 0;
4609 }
4610
4611 static int be_resume(struct pci_dev *pdev)
4612 {
4613         int status = 0;
4614         struct be_adapter *adapter = pci_get_drvdata(pdev);
4615         struct net_device *netdev =  adapter->netdev;
4616
4617         netif_device_detach(netdev);
4618
4619         status = pci_enable_device(pdev);
4620         if (status)
4621                 return status;
4622
4623         pci_set_power_state(pdev, PCI_D0);
4624         pci_restore_state(pdev);
4625
4626         status = be_fw_wait_ready(adapter);
4627         if (status)
4628                 return status;
4629
4630         /* tell fw we're ready to fire cmds */
4631         status = be_cmd_fw_init(adapter);
4632         if (status)
4633                 return status;
4634
4635         be_setup(adapter);
4636         if (netif_running(netdev)) {
4637                 rtnl_lock();
4638                 be_open(netdev);
4639                 rtnl_unlock();
4640         }
4641
4642         schedule_delayed_work(&adapter->func_recovery_work,
4643                               msecs_to_jiffies(1000));
4644         netif_device_attach(netdev);
4645
4646         if (adapter->wol)
4647                 be_setup_wol(adapter, false);
4648
4649         return 0;
4650 }
4651
4652 /*
4653  * An FLR will stop BE from DMAing any data.
4654  */
4655 static void be_shutdown(struct pci_dev *pdev)
4656 {
4657         struct be_adapter *adapter = pci_get_drvdata(pdev);
4658
4659         if (!adapter)
4660                 return;
4661
4662         cancel_delayed_work_sync(&adapter->work);
4663         cancel_delayed_work_sync(&adapter->func_recovery_work);
4664
4665         netif_device_detach(adapter->netdev);
4666
4667         be_cmd_reset_function(adapter);
4668
4669         pci_disable_device(pdev);
4670 }
4671
4672 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4673                                 pci_channel_state_t state)
4674 {
4675         struct be_adapter *adapter = pci_get_drvdata(pdev);
4676         struct net_device *netdev =  adapter->netdev;
4677
4678         dev_err(&adapter->pdev->dev, "EEH error detected\n");
4679
4680         if (!adapter->eeh_error) {
4681                 adapter->eeh_error = true;
4682
4683                 cancel_delayed_work_sync(&adapter->func_recovery_work);
4684
4685                 rtnl_lock();
4686                 netif_device_detach(netdev);
4687                 if (netif_running(netdev))
4688                         be_close(netdev);
4689                 rtnl_unlock();
4690
4691                 be_clear(adapter);
4692         }
4693
4694         if (state == pci_channel_io_perm_failure)
4695                 return PCI_ERS_RESULT_DISCONNECT;
4696
4697         pci_disable_device(pdev);
4698
4699         /* The error could cause the FW to trigger a flash debug dump.
4700          * Resetting the card while flash dump is in progress
4701          * can cause it not to recover; wait for it to finish.
4702          * Wait only for first function as it is needed only once per
4703          * adapter.
4704          */
4705         if (pdev->devfn == 0)
4706                 ssleep(30);
4707
4708         return PCI_ERS_RESULT_NEED_RESET;
4709 }
4710
4711 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4712 {
4713         struct be_adapter *adapter = pci_get_drvdata(pdev);
4714         int status;
4715
4716         dev_info(&adapter->pdev->dev, "EEH reset\n");
4717
4718         status = pci_enable_device(pdev);
4719         if (status)
4720                 return PCI_ERS_RESULT_DISCONNECT;
4721
4722         pci_set_master(pdev);
4723         pci_set_power_state(pdev, PCI_D0);
4724         pci_restore_state(pdev);
4725
4726         /* Check if card is ok and fw is ready */
4727         dev_info(&adapter->pdev->dev,
4728                  "Waiting for FW to be ready after EEH reset\n");
4729         status = be_fw_wait_ready(adapter);
4730         if (status)
4731                 return PCI_ERS_RESULT_DISCONNECT;
4732
4733         pci_cleanup_aer_uncorrect_error_status(pdev);
4734         be_clear_all_error(adapter);
4735         return PCI_ERS_RESULT_RECOVERED;
4736 }
4737
4738 static void be_eeh_resume(struct pci_dev *pdev)
4739 {
4740         int status = 0;
4741         struct be_adapter *adapter = pci_get_drvdata(pdev);
4742         struct net_device *netdev =  adapter->netdev;
4743
4744         dev_info(&adapter->pdev->dev, "EEH resume\n");
4745
4746         pci_save_state(pdev);
4747
4748         status = be_cmd_reset_function(adapter);
4749         if (status)
4750                 goto err;
4751
4752         /* tell fw we're ready to fire cmds */
4753         status = be_cmd_fw_init(adapter);
4754         if (status)
4755                 goto err;
4756
4757         status = be_setup(adapter);
4758         if (status)
4759                 goto err;
4760
4761         if (netif_running(netdev)) {
4762                 status = be_open(netdev);
4763                 if (status)
4764                         goto err;
4765         }
4766
4767         schedule_delayed_work(&adapter->func_recovery_work,
4768                               msecs_to_jiffies(1000));
4769         netif_device_attach(netdev);
4770         return;
4771 err:
4772         dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4773 }
4774
4775 static const struct pci_error_handlers be_eeh_handlers = {
4776         .error_detected = be_eeh_err_detected,
4777         .slot_reset = be_eeh_reset,
4778         .resume = be_eeh_resume,
4779 };
4780
4781 static struct pci_driver be_driver = {
4782         .name = DRV_NAME,
4783         .id_table = be_dev_ids,
4784         .probe = be_probe,
4785         .remove = be_remove,
4786         .suspend = be_suspend,
4787         .resume = be_resume,
4788         .shutdown = be_shutdown,
4789         .err_handler = &be_eeh_handlers
4790 };
4791
4792 static int __init be_init_module(void)
4793 {
4794         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4795             rx_frag_size != 2048) {
4796                 printk(KERN_WARNING DRV_NAME
4797                         " : Module param rx_frag_size must be 2048/4096/8192."
4798                         " Using 2048\n");
4799                 rx_frag_size = 2048;
4800         }
4801
4802         return pci_register_driver(&be_driver);
4803 }
4804 module_init(be_init_module);
4805
4806 static void __exit be_exit_module(void)
4807 {
4808         pci_unregister_driver(&be_driver);
4809 }
4810 module_exit(be_exit_module);