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

   1 /*
   2  * Copyright (C) 2005 - 2011 Emulex
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #include <linux/prefetch.h>
  19 #include <linux/module.h>
  20 #include "be.h"
  21 #include "be_cmds.h"
  22 #include <asm/div64.h>
  23
  24 MODULE_VERSION(DRV_VER);
  25 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  26 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  27 MODULE_AUTHOR("ServerEngines Corporation");
  28 MODULE_LICENSE("GPL");
  29
  30 static unsigned int num_vfs;
  31 module_param(num_vfs, uint, S_IRUGO);
  32 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
  33
  34 static ushort rx_frag_size = 2048;
  35 module_param(rx_frag_size, ushort, S_IRUGO);
  36 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  37
  38 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  39         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  40         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  41         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  42         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  43         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
  44         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
  45         { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
  46         { 0 }
  47 };
  48 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  49 /* UE Status Low CSR */
  50 static const char * const ue_status_low_desc[] = {
  51         "CEV",
  52         "CTX",
  53         "DBUF",
  54         "ERX",
  55         "Host",
  56         "MPU",
  57         "NDMA",
  58         "PTC ",
  59         "RDMA ",
  60         "RXF ",
  61         "RXIPS ",
  62         "RXULP0 ",
  63         "RXULP1 ",
  64         "RXULP2 ",
  65         "TIM ",
  66         "TPOST ",
  67         "TPRE ",
  68         "TXIPS ",
  69         "TXULP0 ",
  70         "TXULP1 ",
  71         "UC ",
  72         "WDMA ",
  73         "TXULP2 ",
  74         "HOST1 ",
  75         "P0_OB_LINK ",
  76         "P1_OB_LINK ",
  77         "HOST_GPIO ",
  78         "MBOX ",
  79         "AXGMAC0",
  80         "AXGMAC1",
  81         "JTAG",
  82         "MPU_INTPEND"
  83 };
  84 /* UE Status High CSR */
  85 static const char * const ue_status_hi_desc[] = {
  86         "LPCMEMHOST",
  87         "MGMT_MAC",
  88         "PCS0ONLINE",
  89         "MPU_IRAM",
  90         "PCS1ONLINE",
  91         "PCTL0",
  92         "PCTL1",
  93         "PMEM",
  94         "RR",
  95         "TXPB",
  96         "RXPP",
  97         "XAUI",
  98         "TXP",
  99         "ARM",
 100         "IPC",
 101         "HOST2",
 102         "HOST3",
 103         "HOST4",
 104         "HOST5",
 105         "HOST6",
 106         "HOST7",
 107         "HOST8",
 108         "HOST9",
 109         "NETC",
 110         "Unknown",
 111         "Unknown",
 112         "Unknown",
 113         "Unknown",
 114         "Unknown",
 115         "Unknown",
 116         "Unknown",
 117         "Unknown"
 118 };
 119
 120 /* Is BE in a multi-channel mode */
 121 static inline bool be_is_mc(struct be_adapter *adapter) {
 122         return (adapter->function_mode & FLEX10_MODE ||
 123                 adapter->function_mode & VNIC_MODE ||
 124                 adapter->function_mode & UMC_ENABLED);
 125 }
 126
 127 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 128 {
 129         struct be_dma_mem *mem = &q->dma_mem;
 130         if (mem->va) {
 131                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 132                                   mem->dma);
 133                 mem->va = NULL;
 134         }
 135 }
 136
 137 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
 138                 u16 len, u16 entry_size)
 139 {
 140         struct be_dma_mem *mem = &q->dma_mem;
 141
 142         memset(q, 0, sizeof(*q));
 143         q->len = len;
 144         q->entry_size = entry_size;
 145         mem->size = len * entry_size;
 146         mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
 147                                      GFP_KERNEL);
 148         if (!mem->va)
 149                 return -ENOMEM;
 150         memset(mem->va, 0, mem->size);
 151         return 0;
 152 }
 153
 154 static void be_intr_set(struct be_adapter *adapter, bool enable)
 155 {
 156         u32 reg, enabled;
 157
 158         if (adapter->eeh_error)
 159                 return;
 160
 161         pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
 162                                 &reg);
 163         enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 164
 165         if (!enabled && enable)
 166                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 167         else if (enabled && !enable)
 168                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
 169         else
 170                 return;
 171
 172         pci_write_config_dword(adapter->pdev,
 173                         PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
 174 }
 175
 176 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 177 {
 178         u32 val = 0;
 179         val |= qid & DB_RQ_RING_ID_MASK;
 180         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 181
 182         wmb();
 183         iowrite32(val, adapter->db + DB_RQ_OFFSET);
 184 }
 185
 186 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
 187 {
 188         u32 val = 0;
 189         val |= qid & DB_TXULP_RING_ID_MASK;
 190         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 191
 192         wmb();
 193         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
 194 }
 195
 196 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
 197                 bool arm, bool clear_int, u16 num_popped)
 198 {
 199         u32 val = 0;
 200         val |= qid & DB_EQ_RING_ID_MASK;
 201         val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
 202                         DB_EQ_RING_ID_EXT_MASK_SHIFT);
 203
 204         if (adapter->eeh_error)
 205                 return;
 206
 207         if (arm)
 208                 val |= 1 << DB_EQ_REARM_SHIFT;
 209         if (clear_int)
 210                 val |= 1 << DB_EQ_CLR_SHIFT;
 211         val |= 1 << DB_EQ_EVNT_SHIFT;
 212         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 213         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 214 }
 215
 216 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 217 {
 218         u32 val = 0;
 219         val |= qid & DB_CQ_RING_ID_MASK;
 220         val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
 221                         DB_CQ_RING_ID_EXT_MASK_SHIFT);
 222
 223         if (adapter->eeh_error)
 224                 return;
 225
 226         if (arm)
 227                 val |= 1 << DB_CQ_REARM_SHIFT;
 228         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 229         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 230 }
 231
 232 static int be_mac_addr_set(struct net_device *netdev, void *p)
 233 {
 234         struct be_adapter *adapter = netdev_priv(netdev);
 235         struct sockaddr *addr = p;
 236         int status = 0;
 237         u8 current_mac[ETH_ALEN];
 238         u32 pmac_id = adapter->pmac_id[0];
 239
 240         if (!is_valid_ether_addr(addr->sa_data))
 241                 return -EADDRNOTAVAIL;
 242
 243         status = be_cmd_mac_addr_query(adapter, current_mac,
 244                                 MAC_ADDRESS_TYPE_NETWORK, false,
 245                                 adapter->if_handle, 0);
 246         if (status)
 247                 goto err;
 248
 249         if (memcmp(addr->sa_data, current_mac, ETH_ALEN)) {
 250                 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 251                                 adapter->if_handle, &adapter->pmac_id[0], 0);
 252                 if (status)
 253                         goto err;
 254
 255                 be_cmd_pmac_del(adapter, adapter->if_handle, pmac_id, 0);
 256         }
 257         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 258         return 0;
 259 err:
 260         dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
 261         return status;
 262 }
 263
 264 static void populate_be2_stats(struct be_adapter *adapter)
 265 {
 266         struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 267         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 268         struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
 269         struct be_port_rxf_stats_v0 *port_stats =
 270                                         &rxf_stats->port[adapter->port_num];
 271         struct be_drv_stats *drvs = &adapter->drv_stats;
 272
 273         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 274         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 275         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 276         drvs->rx_control_frames = port_stats->rx_control_frames;
 277         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 278         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 279         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 280         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 281         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 282         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 283         drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
 284         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 285         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 286         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 287         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 288         drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
 289         drvs->rx_dropped_header_too_small =
 290                 port_stats->rx_dropped_header_too_small;
 291         drvs->rx_address_mismatch_drops =
 292                                         port_stats->rx_address_mismatch_drops +
 293                                         port_stats->rx_vlan_mismatch_drops;
 294         drvs->rx_alignment_symbol_errors =
 295                 port_stats->rx_alignment_symbol_errors;
 296
 297         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 298         drvs->tx_controlframes = port_stats->tx_controlframes;
 299
 300         if (adapter->port_num)
 301                 drvs->jabber_events = rxf_stats->port1_jabber_events;
 302         else
 303                 drvs->jabber_events = rxf_stats->port0_jabber_events;
 304         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 305         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 306         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 307         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 308         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 309         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 310         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 311 }
 312
 313 static void populate_be3_stats(struct be_adapter *adapter)
 314 {
 315         struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 316         struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
 317         struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
 318         struct be_port_rxf_stats_v1 *port_stats =
 319                                         &rxf_stats->port[adapter->port_num];
 320         struct be_drv_stats *drvs = &adapter->drv_stats;
 321
 322         be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
 323         drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
 324         drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
 325         drvs->rx_pause_frames = port_stats->rx_pause_frames;
 326         drvs->rx_crc_errors = port_stats->rx_crc_errors;
 327         drvs->rx_control_frames = port_stats->rx_control_frames;
 328         drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
 329         drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
 330         drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
 331         drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
 332         drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
 333         drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
 334         drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
 335         drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
 336         drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
 337         drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
 338         drvs->rx_dropped_header_too_small =
 339                 port_stats->rx_dropped_header_too_small;
 340         drvs->rx_input_fifo_overflow_drop =
 341                 port_stats->rx_input_fifo_overflow_drop;
 342         drvs->rx_address_mismatch_drops = port_stats->rx_address_mismatch_drops;
 343         drvs->rx_alignment_symbol_errors =
 344                 port_stats->rx_alignment_symbol_errors;
 345         drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
 346         drvs->tx_pauseframes = port_stats->tx_pauseframes;
 347         drvs->tx_controlframes = port_stats->tx_controlframes;
 348         drvs->jabber_events = port_stats->jabber_events;
 349         drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
 350         drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
 351         drvs->forwarded_packets = rxf_stats->forwarded_packets;
 352         drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
 353         drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 354         drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 355         adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 356 }
 357
 358 static void populate_lancer_stats(struct be_adapter *adapter)
 359 {
 360
 361         struct be_drv_stats *drvs = &adapter->drv_stats;
 362         struct lancer_pport_stats *pport_stats =
 363                                         pport_stats_from_cmd(adapter);
 364
 365         be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
 366         drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
 367         drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
 368         drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
 369         drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
 370         drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
 371         drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
 372         drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
 373         drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
 374         drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
 375         drvs->rx_dropped_tcp_length =
 376                                 pport_stats->rx_dropped_invalid_tcp_length;
 377         drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
 378         drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
 379         drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
 380         drvs->rx_dropped_header_too_small =
 381                                 pport_stats->rx_dropped_header_too_small;
 382         drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 383         drvs->rx_address_mismatch_drops =
 384                                         pport_stats->rx_address_mismatch_drops +
 385                                         pport_stats->rx_vlan_mismatch_drops;
 386         drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
 387         drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
 388         drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
 389         drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
 390         drvs->jabber_events = pport_stats->rx_jabbers;
 391         drvs->forwarded_packets = pport_stats->num_forwards_lo;
 392         drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
 393         drvs->rx_drops_too_many_frags =
 394                                 pport_stats->rx_drops_too_many_frags_lo;
 395 }
 396
 397 static void accumulate_16bit_val(u32 *acc, u16 val)
 398 {
 399 #define lo(x)                   (x & 0xFFFF)
 400 #define hi(x)                   (x & 0xFFFF0000)
 401         bool wrapped = val < lo(*acc);
 402         u32 newacc = hi(*acc) + val;
 403
 404         if (wrapped)
 405                 newacc += 65536;
 406         ACCESS_ONCE(*acc) = newacc;
 407 }
 408
 409 void be_parse_stats(struct be_adapter *adapter)
 410 {
 411         struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
 412         struct be_rx_obj *rxo;
 413         int i;
 414
 415         if (adapter->generation == BE_GEN3) {
 416                 if (lancer_chip(adapter))
 417                         populate_lancer_stats(adapter);
 418                  else
 419                         populate_be3_stats(adapter);
 420         } else {
 421                 populate_be2_stats(adapter);
 422         }
 423
 424         if (lancer_chip(adapter))
 425                 goto done;
 426
 427         /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */
 428         for_all_rx_queues(adapter, rxo, i) {
 429                 /* below erx HW counter can actually wrap around after
 430                  * 65535. Driver accumulates a 32-bit value
 431                  */
 432                 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
 433                                 (u16)erx->rx_drops_no_fragments[rxo->q.id]);
 434         }
 435 done:
 436         return;
 437 }
 438
 439 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
 440                                         struct rtnl_link_stats64 *stats)
 441 {
 442         struct be_adapter *adapter = netdev_priv(netdev);
 443         struct be_drv_stats *drvs = &adapter->drv_stats;
 444         struct be_rx_obj *rxo;
 445         struct be_tx_obj *txo;
 446         u64 pkts, bytes;
 447         unsigned int start;
 448         int i;
 449
 450         for_all_rx_queues(adapter, rxo, i) {
 451                 const struct be_rx_stats *rx_stats = rx_stats(rxo);
 452                 do {
 453                         start = u64_stats_fetch_begin_bh(&rx_stats->sync);
 454                         pkts = rx_stats(rxo)->rx_pkts;
 455                         bytes = rx_stats(rxo)->rx_bytes;
 456                 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
 457                 stats->rx_packets += pkts;
 458                 stats->rx_bytes += bytes;
 459                 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
 460                 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
 461                                         rx_stats(rxo)->rx_drops_no_frags;
 462         }
 463
 464         for_all_tx_queues(adapter, txo, i) {
 465                 const struct be_tx_stats *tx_stats = tx_stats(txo);
 466                 do {
 467                         start = u64_stats_fetch_begin_bh(&tx_stats->sync);
 468                         pkts = tx_stats(txo)->tx_pkts;
 469                         bytes = tx_stats(txo)->tx_bytes;
 470                 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
 471                 stats->tx_packets += pkts;
 472                 stats->tx_bytes += bytes;
 473         }
 474
 475         /* bad pkts received */
 476         stats->rx_errors = drvs->rx_crc_errors +
 477                 drvs->rx_alignment_symbol_errors +
 478                 drvs->rx_in_range_errors +
 479                 drvs->rx_out_range_errors +
 480                 drvs->rx_frame_too_long +
 481                 drvs->rx_dropped_too_small +
 482                 drvs->rx_dropped_too_short +
 483                 drvs->rx_dropped_header_too_small +
 484                 drvs->rx_dropped_tcp_length +
 485                 drvs->rx_dropped_runt;
 486
 487         /* detailed rx errors */
 488         stats->rx_length_errors = drvs->rx_in_range_errors +
 489                 drvs->rx_out_range_errors +
 490                 drvs->rx_frame_too_long;
 491
 492         stats->rx_crc_errors = drvs->rx_crc_errors;
 493
 494         /* frame alignment errors */
 495         stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
 496
 497         /* receiver fifo overrun */
 498         /* drops_no_pbuf is no per i/f, it's per BE card */
 499         stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
 500                                 drvs->rx_input_fifo_overflow_drop +
 501                                 drvs->rx_drops_no_pbuf;
 502         return stats;
 503 }
 504
 505 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
 506 {
 507         struct net_device *netdev = adapter->netdev;
 508
 509         if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
 510                 netif_carrier_off(netdev);
 511                 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
 512         }
 513
 514         if ((link_status & LINK_STATUS_MASK) == LINK_UP)
 515                 netif_carrier_on(netdev);
 516         else
 517                 netif_carrier_off(netdev);
 518 }
 519
 520 static void be_tx_stats_update(struct be_tx_obj *txo,
 521                         u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
 522 {
 523         struct be_tx_stats *stats = tx_stats(txo);
 524
 525         u64_stats_update_begin(&stats->sync);
 526         stats->tx_reqs++;
 527         stats->tx_wrbs += wrb_cnt;
 528         stats->tx_bytes += copied;
 529         stats->tx_pkts += (gso_segs ? gso_segs : 1);
 530         if (stopped)
 531                 stats->tx_stops++;
 532         u64_stats_update_end(&stats->sync);
 533 }
 534
 535 /* Determine number of WRB entries needed to xmit data in an skb */
 536 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
 537                                                                 bool *dummy)
 538 {
 539         int cnt = (skb->len > skb->data_len);
 540
 541         cnt += skb_shinfo(skb)->nr_frags;
 542
 543         /* to account for hdr wrb */
 544         cnt++;
 545         if (lancer_chip(adapter) || !(cnt & 1)) {
 546                 *dummy = false;
 547         } else {
 548                 /* add a dummy to make it an even num */
 549                 cnt++;
 550                 *dummy = true;
 551         }
 552         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 553         return cnt;
 554 }
 555
 556 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 557 {
 558         wrb->frag_pa_hi = upper_32_bits(addr);
 559         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 560         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 561         wrb->rsvd0 = 0;
 562 }
 563
 564 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
 565                                         struct sk_buff *skb)
 566 {
 567         u8 vlan_prio;
 568         u16 vlan_tag;
 569
 570         vlan_tag = vlan_tx_tag_get(skb);
 571         vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
 572         /* If vlan priority provided by OS is NOT in available bmap */
 573         if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
 574                 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
 575                                 adapter->recommended_prio;
 576
 577         return vlan_tag;
 578 }
 579
 580 static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
 581 {
 582         return vlan_tx_tag_present(skb) || adapter->pvid;
 583 }
 584
 585 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
 586                 struct sk_buff *skb, u32 wrb_cnt, u32 len)
 587 {
 588         u16 vlan_tag;
 589
 590         memset(hdr, 0, sizeof(*hdr));
 591
 592         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 593
 594         if (skb_is_gso(skb)) {
 595                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 596                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 597                         hdr, skb_shinfo(skb)->gso_size);
 598                 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
 599                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
 600                 if (lancer_chip(adapter) && adapter->sli_family  ==
 601                                                         LANCER_A0_SLI_FAMILY) {
 602                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1);
 603                         if (is_tcp_pkt(skb))
 604                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 605                                                                 tcpcs, hdr, 1);
 606                         else if (is_udp_pkt(skb))
 607                                 AMAP_SET_BITS(struct amap_eth_hdr_wrb,
 608                                                                 udpcs, hdr, 1);
 609                 }
 610         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 611                 if (is_tcp_pkt(skb))
 612                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 613                 else if (is_udp_pkt(skb))
 614                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 615         }
 616
 617         if (vlan_tx_tag_present(skb)) {
 618                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 619                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 620                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
 621         }
 622
 623         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 624         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 625         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 626         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 627 }
 628
 629 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
 630                 bool unmap_single)
 631 {
 632         dma_addr_t dma;
 633
 634         be_dws_le_to_cpu(wrb, sizeof(*wrb));
 635
 636         dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
 637         if (wrb->frag_len) {
 638                 if (unmap_single)
 639                         dma_unmap_single(dev, dma, wrb->frag_len,
 640                                          DMA_TO_DEVICE);
 641                 else
 642                         dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
 643         }
 644 }
 645
 646 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
 647                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 648 {
 649         dma_addr_t busaddr;
 650         int i, copied = 0;
 651         struct device *dev = &adapter->pdev->dev;
 652         struct sk_buff *first_skb = skb;
 653         struct be_eth_wrb *wrb;
 654         struct be_eth_hdr_wrb *hdr;
 655         bool map_single = false;
 656         u16 map_head;
 657
 658         hdr = queue_head_node(txq);
 659         queue_head_inc(txq);
 660         map_head = txq->head;
 661
 662         if (skb->len > skb->data_len) {
 663                 int len = skb_headlen(skb);
 664                 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
 665                 if (dma_mapping_error(dev, busaddr))
 666                         goto dma_err;
 667                 map_single = true;
 668                 wrb = queue_head_node(txq);
 669                 wrb_fill(wrb, busaddr, len);
 670                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 671                 queue_head_inc(txq);
 672                 copied += len;
 673         }
 674
 675         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 676                 const struct skb_frag_struct *frag =
 677                         &skb_shinfo(skb)->frags[i];
 678                 busaddr = skb_frag_dma_map(dev, frag, 0,
 679                                            skb_frag_size(frag), DMA_TO_DEVICE);
 680                 if (dma_mapping_error(dev, busaddr))
 681                         goto dma_err;
 682                 wrb = queue_head_node(txq);
 683                 wrb_fill(wrb, busaddr, skb_frag_size(frag));
 684                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 685                 queue_head_inc(txq);
 686                 copied += skb_frag_size(frag);
 687         }
 688
 689         if (dummy_wrb) {
 690                 wrb = queue_head_node(txq);
 691                 wrb_fill(wrb, 0, 0);
 692                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 693                 queue_head_inc(txq);
 694         }
 695
 696         wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied);
 697         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 698
 699         return copied;
 700 dma_err:
 701         txq->head = map_head;
 702         while (copied) {
 703                 wrb = queue_head_node(txq);
 704                 unmap_tx_frag(dev, wrb, map_single);
 705                 map_single = false;
 706                 copied -= wrb->frag_len;
 707                 queue_head_inc(txq);
 708         }
 709         return 0;
 710 }
 711
 712 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
 713                                              struct sk_buff *skb)
 714 {
 715         u16 vlan_tag = 0;
 716
 717         skb = skb_share_check(skb, GFP_ATOMIC);
 718         if (unlikely(!skb))
 719                 return skb;
 720
 721         if (vlan_tx_tag_present(skb)) {
 722                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
 723                 __vlan_put_tag(skb, vlan_tag);
 724                 skb->vlan_tci = 0;
 725         }
 726
 727         return skb;
 728 }
 729
 730 static netdev_tx_t be_xmit(struct sk_buff *skb,
 731                         struct net_device *netdev)
 732 {
 733         struct be_adapter *adapter = netdev_priv(netdev);
 734         struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
 735         struct be_queue_info *txq = &txo->q;
 736         struct iphdr *ip = NULL;
 737         u32 wrb_cnt = 0, copied = 0;
 738         u32 start = txq->head, eth_hdr_len;
 739         bool dummy_wrb, stopped = false;
 740
 741         eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
 742                 VLAN_ETH_HLEN : ETH_HLEN;
 743
 744         /* HW has a bug which considers padding bytes as legal
 745          * and modifies the IPv4 hdr's 'tot_len' field
 746          */
 747         if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
 748                         is_ipv4_pkt(skb)) {
 749                 ip = (struct iphdr *)ip_hdr(skb);
 750                 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
 751         }
 752
 753         /* HW has a bug wherein it will calculate CSUM for VLAN
 754          * pkts even though it is disabled.
 755          * Manually insert VLAN in pkt.
 756          */
 757         if (skb->ip_summed != CHECKSUM_PARTIAL &&
 758                         be_vlan_tag_chk(adapter, skb)) {
 759                 skb = be_insert_vlan_in_pkt(adapter, skb);
 760                 if (unlikely(!skb))
 761                         goto tx_drop;
 762         }
 763
 764         wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
 765
 766         copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb);
 767         if (copied) {
 768                 int gso_segs = skb_shinfo(skb)->gso_segs;
 769
 770                 /* record the sent skb in the sent_skb table */
 771                 BUG_ON(txo->sent_skb_list[start]);
 772                 txo->sent_skb_list[start] = skb;
 773
 774                 /* Ensure txq has space for the next skb; Else stop the queue
 775                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 776                  * tx compls of the current transmit which'll wake up the queue
 777                  */
 778                 atomic_add(wrb_cnt, &txq->used);
 779                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 780                                                                 txq->len) {
 781                         netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
 782                         stopped = true;
 783                 }
 784
 785                 be_txq_notify(adapter, txq->id, wrb_cnt);
 786
 787                 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
 788         } else {
 789                 txq->head = start;
 790                 dev_kfree_skb_any(skb);
 791         }
 792 tx_drop:
 793         return NETDEV_TX_OK;
 794 }
 795
 796 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 797 {
 798         struct be_adapter *adapter = netdev_priv(netdev);
 799         if (new_mtu < BE_MIN_MTU ||
 800                         new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
 801                                         (ETH_HLEN + ETH_FCS_LEN))) {
 802                 dev_info(&adapter->pdev->dev,
 803                         "MTU must be between %d and %d bytes\n",
 804                         BE_MIN_MTU,
 805                         (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
 806                 return -EINVAL;
 807         }
 808         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 809                         netdev->mtu, new_mtu);
 810         netdev->mtu = new_mtu;
 811         return 0;
 812 }
 813
 814 /*
 815  * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
 816  * If the user configures more, place BE in vlan promiscuous mode.
 817  */
 818 static int be_vid_config(struct be_adapter *adapter)
 819 {
 820         u16 vids[BE_NUM_VLANS_SUPPORTED];
 821         u16 num = 0, i;
 822         int status = 0;
 823
 824         /* No need to further configure vids if in promiscuous mode */
 825         if (adapter->promiscuous)
 826                 return 0;
 827
 828         if (adapter->vlans_added > adapter->max_vlans)
 829                 goto set_vlan_promisc;
 830
 831         /* Construct VLAN Table to give to HW */
 832         for (i = 0; i < VLAN_N_VID; i++)
 833                 if (adapter->vlan_tag[i])
 834                         vids[num++] = cpu_to_le16(i);
 835
 836         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 837                                     vids, num, 1, 0);
 838
 839         /* Set to VLAN promisc mode as setting VLAN filter failed */
 840         if (status) {
 841                 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
 842                 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
 843                 goto set_vlan_promisc;
 844         }
 845
 846         return status;
 847
 848 set_vlan_promisc:
 849         status = be_cmd_vlan_config(adapter, adapter->if_handle,
 850                                     NULL, 0, 1, 1);
 851         return status;
 852 }
 853
 854 static int be_vlan_add_vid(struct net_device *netdev, u16 vid)
 855 {
 856         struct be_adapter *adapter = netdev_priv(netdev);
 857         int status = 0;
 858
 859         if (!be_physfn(adapter)) {
 860                 status = -EINVAL;
 861                 goto ret;
 862         }
 863
 864         adapter->vlan_tag[vid] = 1;
 865         if (adapter->vlans_added <= (adapter->max_vlans + 1))
 866                 status = be_vid_config(adapter);
 867
 868         if (!status)
 869                 adapter->vlans_added++;
 870         else
 871                 adapter->vlan_tag[vid] = 0;
 872 ret:
 873         return status;
 874 }
 875
 876 static int be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 877 {
 878         struct be_adapter *adapter = netdev_priv(netdev);
 879         int status = 0;
 880
 881         if (!be_physfn(adapter)) {
 882                 status = -EINVAL;
 883                 goto ret;
 884         }
 885
 886         adapter->vlan_tag[vid] = 0;
 887         if (adapter->vlans_added <= adapter->max_vlans)
 888                 status = be_vid_config(adapter);
 889
 890         if (!status)
 891                 adapter->vlans_added--;
 892         else
 893                 adapter->vlan_tag[vid] = 1;
 894 ret:
 895         return status;
 896 }
 897
 898 static void be_set_rx_mode(struct net_device *netdev)
 899 {
 900         struct be_adapter *adapter = netdev_priv(netdev);
 901         int status;
 902
 903         if (netdev->flags & IFF_PROMISC) {
 904                 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 905                 adapter->promiscuous = true;
 906                 goto done;
 907         }
 908
 909         /* BE was previously in promiscuous mode; disable it */
 910         if (adapter->promiscuous) {
 911                 adapter->promiscuous = false;
 912                 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
 913
 914                 if (adapter->vlans_added)
 915                         be_vid_config(adapter);
 916         }
 917
 918         /* Enable multicast promisc if num configured exceeds what we support */
 919         if (netdev->flags & IFF_ALLMULTI ||
 920                         netdev_mc_count(netdev) > BE_MAX_MC) {
 921                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 922                 goto done;
 923         }
 924
 925         if (netdev_uc_count(netdev) != adapter->uc_macs) {
 926                 struct netdev_hw_addr *ha;
 927                 int i = 1; /* First slot is claimed by the Primary MAC */
 928
 929                 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
 930                         be_cmd_pmac_del(adapter, adapter->if_handle,
 931                                         adapter->pmac_id[i], 0);
 932                 }
 933
 934                 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
 935                         be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
 936                         adapter->promiscuous = true;
 937                         goto done;
 938                 }
 939
 940                 netdev_for_each_uc_addr(ha, adapter->netdev) {
 941                         adapter->uc_macs++; /* First slot is for Primary MAC */
 942                         be_cmd_pmac_add(adapter, (u8 *)ha->addr,
 943                                         adapter->if_handle,
 944                                         &adapter->pmac_id[adapter->uc_macs], 0);
 945                 }
 946         }
 947
 948         status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
 949
 950         /* Set to MCAST promisc mode if setting MULTICAST address fails */
 951         if (status) {
 952                 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
 953                 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
 954                 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
 955         }
 956 done:
 957         return;
 958 }
 959
 960 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 961 {
 962         struct be_adapter *adapter = netdev_priv(netdev);
 963         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 964         int status;
 965
 966         if (!sriov_enabled(adapter))
 967                 return -EPERM;
 968
 969         if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
 970                 return -EINVAL;
 971
 972         if (lancer_chip(adapter)) {
 973                 status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
 974         } else {
 975                 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
 976                                          vf_cfg->pmac_id, vf + 1);
 977
 978                 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
 979                                          &vf_cfg->pmac_id, vf + 1);
 980         }
 981
 982         if (status)
 983                 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
 984                                 mac, vf);
 985         else
 986                 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
 987
 988         return status;
 989 }
 990
 991 static int be_get_vf_config(struct net_device *netdev, int vf,
 992                         struct ifla_vf_info *vi)
 993 {
 994         struct be_adapter *adapter = netdev_priv(netdev);
 995         struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
 996
 997         if (!sriov_enabled(adapter))
 998                 return -EPERM;
 999
1000         if (vf >= adapter->num_vfs)
1001                 return -EINVAL;
1002
1003         vi->vf = vf;
1004         vi->tx_rate = vf_cfg->tx_rate;
1005         vi->vlan = vf_cfg->vlan_tag;
1006         vi->qos = 0;
1007         memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1008
1009         return 0;
1010 }
1011
1012 static int be_set_vf_vlan(struct net_device *netdev,
1013                         int vf, u16 vlan, u8 qos)
1014 {
1015         struct be_adapter *adapter = netdev_priv(netdev);
1016         int status = 0;
1017
1018         if (!sriov_enabled(adapter))
1019                 return -EPERM;
1020
1021         if (vf >= adapter->num_vfs || vlan > 4095)
1022                 return -EINVAL;
1023
1024         if (vlan) {
1025                 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1026                         /* If this is new value, program it. Else skip. */
1027                         adapter->vf_cfg[vf].vlan_tag = vlan;
1028
1029                         status = be_cmd_set_hsw_config(adapter, vlan,
1030                                 vf + 1, adapter->vf_cfg[vf].if_handle);
1031                 }
1032         } else {
1033                 /* Reset Transparent Vlan Tagging. */
1034                 adapter->vf_cfg[vf].vlan_tag = 0;
1035                 vlan = adapter->vf_cfg[vf].def_vid;
1036                 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1037                         adapter->vf_cfg[vf].if_handle);
1038         }
1039
1040
1041         if (status)
1042                 dev_info(&adapter->pdev->dev,
1043                                 "VLAN %d config on VF %d failed\n", vlan, vf);
1044         return status;
1045 }
1046
1047 static int be_set_vf_tx_rate(struct net_device *netdev,
1048                         int vf, int rate)
1049 {
1050         struct be_adapter *adapter = netdev_priv(netdev);
1051         int status = 0;
1052
1053         if (!sriov_enabled(adapter))
1054                 return -EPERM;
1055
1056         if (vf >= adapter->num_vfs)
1057                 return -EINVAL;
1058
1059         if (rate < 100 || rate > 10000) {
1060                 dev_err(&adapter->pdev->dev,
1061                         "tx rate must be between 100 and 10000 Mbps\n");
1062                 return -EINVAL;
1063         }
1064
1065         status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1066
1067         if (status)
1068                 dev_err(&adapter->pdev->dev,
1069                                 "tx rate %d on VF %d failed\n", rate, vf);
1070         else
1071                 adapter->vf_cfg[vf].tx_rate = rate;
1072         return status;
1073 }
1074
1075 static int be_find_vfs(struct be_adapter *adapter, int vf_state)
1076 {
1077         struct pci_dev *dev, *pdev = adapter->pdev;
1078         int vfs = 0, assigned_vfs = 0, pos, vf_fn;
1079         u16 offset, stride;
1080
1081         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1082         if (!pos)
1083                 return 0;
1084         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
1085         pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
1086
1087         dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
1088         while (dev) {
1089                 vf_fn = (pdev->devfn + offset + stride * vfs) & 0xFFFF;
1090                 if (dev->is_virtfn && dev->devfn == vf_fn &&
1091                         dev->bus->number == pdev->bus->number) {
1092                         vfs++;
1093                         if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
1094                                 assigned_vfs++;
1095                 }
1096                 dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
1097         }
1098         return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
1099 }
1100
1101 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1102 {
1103         struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1104         ulong now = jiffies;
1105         ulong delta = now - stats->rx_jiffies;
1106         u64 pkts;
1107         unsigned int start, eqd;
1108
1109         if (!eqo->enable_aic) {
1110                 eqd = eqo->eqd;
1111                 goto modify_eqd;
1112         }
1113
1114         if (eqo->idx >= adapter->num_rx_qs)
1115                 return;
1116
1117         stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1118
1119         /* Wrapped around */
1120         if (time_before(now, stats->rx_jiffies)) {
1121                 stats->rx_jiffies = now;
1122                 return;
1123         }
1124
1125         /* Update once a second */
1126         if (delta < HZ)
1127                 return;
1128
1129         do {
1130                 start = u64_stats_fetch_begin_bh(&stats->sync);
1131                 pkts = stats->rx_pkts;
1132         } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1133
1134         stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1135         stats->rx_pkts_prev = pkts;
1136         stats->rx_jiffies = now;
1137         eqd = (stats->rx_pps / 110000) << 3;
1138         eqd = min(eqd, eqo->max_eqd);
1139         eqd = max(eqd, eqo->min_eqd);
1140         if (eqd < 10)
1141                 eqd = 0;
1142
1143 modify_eqd:
1144         if (eqd != eqo->cur_eqd) {
1145                 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1146                 eqo->cur_eqd = eqd;
1147         }
1148 }
1149
1150 static void be_rx_stats_update(struct be_rx_obj *rxo,
1151                 struct be_rx_compl_info *rxcp)
1152 {
1153         struct be_rx_stats *stats = rx_stats(rxo);
1154
1155         u64_stats_update_begin(&stats->sync);
1156         stats->rx_compl++;
1157         stats->rx_bytes += rxcp->pkt_size;
1158         stats->rx_pkts++;
1159         if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1160                 stats->rx_mcast_pkts++;
1161         if (rxcp->err)
1162                 stats->rx_compl_err++;
1163         u64_stats_update_end(&stats->sync);
1164 }
1165
1166 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1167 {
1168         /* L4 checksum is not reliable for non TCP/UDP packets.
1169          * Also ignore ipcksm for ipv6 pkts */
1170         return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1171                                 (rxcp->ip_csum || rxcp->ipv6);
1172 }
1173
1174 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1175                                                 u16 frag_idx)
1176 {
1177         struct be_adapter *adapter = rxo->adapter;
1178         struct be_rx_page_info *rx_page_info;
1179         struct be_queue_info *rxq = &rxo->q;
1180
1181         rx_page_info = &rxo->page_info_tbl[frag_idx];
1182         BUG_ON(!rx_page_info->page);
1183
1184         if (rx_page_info->last_page_user) {
1185                 dma_unmap_page(&adapter->pdev->dev,
1186                                dma_unmap_addr(rx_page_info, bus),
1187                                adapter->big_page_size, DMA_FROM_DEVICE);
1188                 rx_page_info->last_page_user = false;
1189         }
1190
1191         atomic_dec(&rxq->used);
1192         return rx_page_info;
1193 }
1194
1195 /* Throwaway the data in the Rx completion */
1196 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1197                                 struct be_rx_compl_info *rxcp)
1198 {
1199         struct be_queue_info *rxq = &rxo->q;
1200         struct be_rx_page_info *page_info;
1201         u16 i, num_rcvd = rxcp->num_rcvd;
1202
1203         for (i = 0; i < num_rcvd; i++) {
1204                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1205                 put_page(page_info->page);
1206                 memset(page_info, 0, sizeof(*page_info));
1207                 index_inc(&rxcp->rxq_idx, rxq->len);
1208         }
1209 }
1210
1211 /*
1212  * skb_fill_rx_data forms a complete skb for an ether frame
1213  * indicated by rxcp.
1214  */
1215 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1216                              struct be_rx_compl_info *rxcp)
1217 {
1218         struct be_queue_info *rxq = &rxo->q;
1219         struct be_rx_page_info *page_info;
1220         u16 i, j;
1221         u16 hdr_len, curr_frag_len, remaining;
1222         u8 *start;
1223
1224         page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1225         start = page_address(page_info->page) + page_info->page_offset;
1226         prefetch(start);
1227
1228         /* Copy data in the first descriptor of this completion */
1229         curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1230
1231         skb->len = curr_frag_len;
1232         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1233                 memcpy(skb->data, start, curr_frag_len);
1234                 /* Complete packet has now been moved to data */
1235                 put_page(page_info->page);
1236                 skb->data_len = 0;
1237                 skb->tail += curr_frag_len;
1238         } else {
1239                 hdr_len = ETH_HLEN;
1240                 memcpy(skb->data, start, hdr_len);
1241                 skb_shinfo(skb)->nr_frags = 1;
1242                 skb_frag_set_page(skb, 0, page_info->page);
1243                 skb_shinfo(skb)->frags[0].page_offset =
1244                                         page_info->page_offset + hdr_len;
1245                 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1246                 skb->data_len = curr_frag_len - hdr_len;
1247                 skb->truesize += rx_frag_size;
1248                 skb->tail += hdr_len;
1249         }
1250         page_info->page = NULL;
1251
1252         if (rxcp->pkt_size <= rx_frag_size) {
1253                 BUG_ON(rxcp->num_rcvd != 1);
1254                 return;
1255         }
1256
1257         /* More frags present for this completion */
1258         index_inc(&rxcp->rxq_idx, rxq->len);
1259         remaining = rxcp->pkt_size - curr_frag_len;
1260         for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1261                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1262                 curr_frag_len = min(remaining, rx_frag_size);
1263
1264                 /* Coalesce all frags from the same physical page in one slot */
1265                 if (page_info->page_offset == 0) {
1266                         /* Fresh page */
1267                         j++;
1268                         skb_frag_set_page(skb, j, page_info->page);
1269                         skb_shinfo(skb)->frags[j].page_offset =
1270                                                         page_info->page_offset;
1271                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1272                         skb_shinfo(skb)->nr_frags++;
1273                 } else {
1274                         put_page(page_info->page);
1275                 }
1276
1277                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1278                 skb->len += curr_frag_len;
1279                 skb->data_len += curr_frag_len;
1280                 skb->truesize += rx_frag_size;
1281                 remaining -= curr_frag_len;
1282                 index_inc(&rxcp->rxq_idx, rxq->len);
1283                 page_info->page = NULL;
1284         }
1285         BUG_ON(j > MAX_SKB_FRAGS);
1286 }
1287
1288 /* Process the RX completion indicated by rxcp when GRO is disabled */
1289 static void be_rx_compl_process(struct be_rx_obj *rxo,
1290                                 struct be_rx_compl_info *rxcp)
1291 {
1292         struct be_adapter *adapter = rxo->adapter;
1293         struct net_device *netdev = adapter->netdev;
1294         struct sk_buff *skb;
1295
1296         skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1297         if (unlikely(!skb)) {
1298                 rx_stats(rxo)->rx_drops_no_skbs++;
1299                 be_rx_compl_discard(rxo, rxcp);
1300                 return;
1301         }
1302
1303         skb_fill_rx_data(rxo, skb, rxcp);
1304
1305         if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1306                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1307         else
1308                 skb_checksum_none_assert(skb);
1309
1310         skb->protocol = eth_type_trans(skb, netdev);
1311         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1312         if (netdev->features & NETIF_F_RXHASH)
1313                 skb->rxhash = rxcp->rss_hash;
1314
1315
1316         if (rxcp->vlanf)
1317                 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1318
1319         netif_receive_skb(skb);
1320 }
1321
1322 /* Process the RX completion indicated by rxcp when GRO is enabled */
1323 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1324                              struct be_rx_compl_info *rxcp)
1325 {
1326         struct be_adapter *adapter = rxo->adapter;
1327         struct be_rx_page_info *page_info;
1328         struct sk_buff *skb = NULL;
1329         struct be_queue_info *rxq = &rxo->q;
1330         u16 remaining, curr_frag_len;
1331         u16 i, j;
1332
1333         skb = napi_get_frags(napi);
1334         if (!skb) {
1335                 be_rx_compl_discard(rxo, rxcp);
1336                 return;
1337         }
1338
1339         remaining = rxcp->pkt_size;
1340         for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1341                 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1342
1343                 curr_frag_len = min(remaining, rx_frag_size);
1344
1345                 /* Coalesce all frags from the same physical page in one slot */
1346                 if (i == 0 || page_info->page_offset == 0) {
1347                         /* First frag or Fresh page */
1348                         j++;
1349                         skb_frag_set_page(skb, j, page_info->page);
1350                         skb_shinfo(skb)->frags[j].page_offset =
1351                                                         page_info->page_offset;
1352                         skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1353                 } else {
1354                         put_page(page_info->page);
1355                 }
1356                 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1357                 skb->truesize += rx_frag_size;
1358                 remaining -= curr_frag_len;
1359                 index_inc(&rxcp->rxq_idx, rxq->len);
1360                 memset(page_info, 0, sizeof(*page_info));
1361         }
1362         BUG_ON(j > MAX_SKB_FRAGS);
1363
1364         skb_shinfo(skb)->nr_frags = j + 1;
1365         skb->len = rxcp->pkt_size;
1366         skb->data_len = rxcp->pkt_size;
1367         skb->ip_summed = CHECKSUM_UNNECESSARY;
1368         skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1369         if (adapter->netdev->features & NETIF_F_RXHASH)
1370                 skb->rxhash = rxcp->rss_hash;
1371
1372         if (rxcp->vlanf)
1373                 __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag);
1374
1375         napi_gro_frags(napi);
1376 }
1377
1378 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1379                                  struct be_rx_compl_info *rxcp)
1380 {
1381         rxcp->pkt_size =
1382                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1383         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1384         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1385         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1386         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1387         rxcp->ip_csum =
1388                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1389         rxcp->l4_csum =
1390                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1391         rxcp->ipv6 =
1392                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1393         rxcp->rxq_idx =
1394                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1395         rxcp->num_rcvd =
1396                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1397         rxcp->pkt_type =
1398                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1399         rxcp->rss_hash =
1400                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1401         if (rxcp->vlanf) {
1402                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1403                                           compl);
1404                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1405                                                compl);
1406         }
1407         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1408 }
1409
1410 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1411                                  struct be_rx_compl_info *rxcp)
1412 {
1413         rxcp->pkt_size =
1414                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1415         rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1416         rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1417         rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1418         rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1419         rxcp->ip_csum =
1420                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1421         rxcp->l4_csum =
1422                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1423         rxcp->ipv6 =
1424                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1425         rxcp->rxq_idx =
1426                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1427         rxcp->num_rcvd =
1428                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1429         rxcp->pkt_type =
1430                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1431         rxcp->rss_hash =
1432                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1433         if (rxcp->vlanf) {
1434                 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1435                                           compl);
1436                 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1437                                                compl);
1438         }
1439         rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1440 }
1441
1442 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1443 {
1444         struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1445         struct be_rx_compl_info *rxcp = &rxo->rxcp;
1446         struct be_adapter *adapter = rxo->adapter;
1447
1448         /* For checking the valid bit it is Ok to use either definition as the
1449          * valid bit is at the same position in both v0 and v1 Rx compl */
1450         if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1451                 return NULL;
1452
1453         rmb();
1454         be_dws_le_to_cpu(compl, sizeof(*compl));
1455
1456         if (adapter->be3_native)
1457                 be_parse_rx_compl_v1(compl, rxcp);
1458         else
1459                 be_parse_rx_compl_v0(compl, rxcp);
1460
1461         if (rxcp->vlanf) {
1462                 /* vlanf could be wrongly set in some cards.
1463                  * ignore if vtm is not set */
1464                 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1465                         rxcp->vlanf = 0;
1466
1467                 if (!lancer_chip(adapter))
1468                         rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1469
1470                 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1471                     !adapter->vlan_tag[rxcp->vlan_tag])
1472                         rxcp->vlanf = 0;
1473         }
1474
1475         /* As the compl has been parsed, reset it; we wont touch it again */
1476         compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1477
1478         queue_tail_inc(&rxo->cq);
1479         return rxcp;
1480 }
1481
1482 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1483 {
1484         u32 order = get_order(size);
1485
1486         if (order > 0)
1487                 gfp |= __GFP_COMP;
1488         return  alloc_pages(gfp, order);
1489 }
1490
1491 /*
1492  * Allocate a page, split it to fragments of size rx_frag_size and post as
1493  * receive buffers to BE
1494  */
1495 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1496 {
1497         struct be_adapter *adapter = rxo->adapter;
1498         struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1499         struct be_queue_info *rxq = &rxo->q;
1500         struct page *pagep = NULL;
1501         struct be_eth_rx_d *rxd;
1502         u64 page_dmaaddr = 0, frag_dmaaddr;
1503         u32 posted, page_offset = 0;
1504
1505         page_info = &rxo->page_info_tbl[rxq->head];
1506         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1507                 if (!pagep) {
1508                         pagep = be_alloc_pages(adapter->big_page_size, gfp);
1509                         if (unlikely(!pagep)) {
1510                                 rx_stats(rxo)->rx_post_fail++;
1511                                 break;
1512                         }
1513                         page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1514                                                     0, adapter->big_page_size,
1515                                                     DMA_FROM_DEVICE);
1516                         page_info->page_offset = 0;
1517                 } else {
1518                         get_page(pagep);
1519                         page_info->page_offset = page_offset + rx_frag_size;
1520                 }
1521                 page_offset = page_info->page_offset;
1522                 page_info->page = pagep;
1523                 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1524                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1525
1526                 rxd = queue_head_node(rxq);
1527                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1528                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1529
1530                 /* Any space left in the current big page for another frag? */
1531                 if ((page_offset + rx_frag_size + rx_frag_size) >
1532                                         adapter->big_page_size) {
1533                         pagep = NULL;
1534                         page_info->last_page_user = true;
1535                 }
1536
1537                 prev_page_info = page_info;
1538                 queue_head_inc(rxq);
1539                 page_info = &rxo->page_info_tbl[rxq->head];
1540         }
1541         if (pagep)
1542                 prev_page_info->last_page_user = true;
1543
1544         if (posted) {
1545                 atomic_add(posted, &rxq->used);
1546                 be_rxq_notify(adapter, rxq->id, posted);
1547         } else if (atomic_read(&rxq->used) == 0) {
1548                 /* Let be_worker replenish when memory is available */
1549                 rxo->rx_post_starved = true;
1550         }
1551 }
1552
1553 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1554 {
1555         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1556
1557         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1558                 return NULL;
1559
1560         rmb();
1561         be_dws_le_to_cpu(txcp, sizeof(*txcp));
1562
1563         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1564
1565         queue_tail_inc(tx_cq);
1566         return txcp;
1567 }
1568
1569 static u16 be_tx_compl_process(struct be_adapter *adapter,
1570                 struct be_tx_obj *txo, u16 last_index)
1571 {
1572         struct be_queue_info *txq = &txo->q;
1573         struct be_eth_wrb *wrb;
1574         struct sk_buff **sent_skbs = txo->sent_skb_list;
1575         struct sk_buff *sent_skb;
1576         u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1577         bool unmap_skb_hdr = true;
1578
1579         sent_skb = sent_skbs[txq->tail];
1580         BUG_ON(!sent_skb);
1581         sent_skbs[txq->tail] = NULL;
1582
1583         /* skip header wrb */
1584         queue_tail_inc(txq);
1585
1586         do {
1587                 cur_index = txq->tail;
1588                 wrb = queue_tail_node(txq);
1589                 unmap_tx_frag(&adapter->pdev->dev, wrb,
1590                               (unmap_skb_hdr && skb_headlen(sent_skb)));
1591                 unmap_skb_hdr = false;
1592
1593                 num_wrbs++;
1594                 queue_tail_inc(txq);
1595         } while (cur_index != last_index);
1596
1597         kfree_skb(sent_skb);
1598         return num_wrbs;
1599 }
1600
1601 /* Return the number of events in the event queue */
1602 static inline int events_get(struct be_eq_obj *eqo)
1603 {
1604         struct be_eq_entry *eqe;
1605         int num = 0;
1606
1607         do {
1608                 eqe = queue_tail_node(&eqo->q);
1609                 if (eqe->evt == 0)
1610                         break;
1611
1612                 rmb();
1613                 eqe->evt = 0;
1614                 num++;
1615                 queue_tail_inc(&eqo->q);
1616         } while (true);
1617
1618         return num;
1619 }
1620
1621 static int event_handle(struct be_eq_obj *eqo)
1622 {
1623         bool rearm = false;
1624         int num = events_get(eqo);
1625
1626         /* Deal with any spurious interrupts that come without events */
1627         if (!num)
1628                 rearm = true;
1629
1630         if (num || msix_enabled(eqo->adapter))
1631                 be_eq_notify(eqo->adapter, eqo->q.id, rearm, true, num);
1632
1633         if (num)
1634                 napi_schedule(&eqo->napi);
1635
1636         return num;
1637 }
1638
1639 /* Leaves the EQ is disarmed state */
1640 static void be_eq_clean(struct be_eq_obj *eqo)
1641 {
1642         int num = events_get(eqo);
1643
1644         be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1645 }
1646
1647 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1648 {
1649         struct be_rx_page_info *page_info;
1650         struct be_queue_info *rxq = &rxo->q;
1651         struct be_queue_info *rx_cq = &rxo->cq;
1652         struct be_rx_compl_info *rxcp;
1653         u16 tail;
1654
1655         /* First cleanup pending rx completions */
1656         while ((rxcp = be_rx_compl_get(rxo)) != NULL) {
1657                 be_rx_compl_discard(rxo, rxcp);
1658                 be_cq_notify(rxo->adapter, rx_cq->id, false, 1);
1659         }
1660
1661         /* Then free posted rx buffer that were not used */
1662         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1663         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1664                 page_info = get_rx_page_info(rxo, tail);
1665                 put_page(page_info->page);
1666                 memset(page_info, 0, sizeof(*page_info));
1667         }
1668         BUG_ON(atomic_read(&rxq->used));
1669         rxq->tail = rxq->head = 0;
1670 }
1671
1672 static void be_tx_compl_clean(struct be_adapter *adapter)
1673 {
1674         struct be_tx_obj *txo;
1675         struct be_queue_info *txq;
1676         struct be_eth_tx_compl *txcp;
1677         u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1678         struct sk_buff *sent_skb;
1679         bool dummy_wrb;
1680         int i, pending_txqs;
1681
1682         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1683         do {
1684                 pending_txqs = adapter->num_tx_qs;
1685
1686                 for_all_tx_queues(adapter, txo, i) {
1687                         txq = &txo->q;
1688                         while ((txcp = be_tx_compl_get(&txo->cq))) {
1689                                 end_idx =
1690                                         AMAP_GET_BITS(struct amap_eth_tx_compl,
1691                                                       wrb_index, txcp);
1692                                 num_wrbs += be_tx_compl_process(adapter, txo,
1693                                                                 end_idx);
1694                                 cmpl++;
1695                         }
1696                         if (cmpl) {
1697                                 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1698                                 atomic_sub(num_wrbs, &txq->used);
1699                                 cmpl = 0;
1700                                 num_wrbs = 0;
1701                         }
1702                         if (atomic_read(&txq->used) == 0)
1703                                 pending_txqs--;
1704                 }
1705
1706                 if (pending_txqs == 0 || ++timeo > 200)
1707                         break;
1708
1709                 mdelay(1);
1710         } while (true);
1711
1712         for_all_tx_queues(adapter, txo, i) {
1713                 txq = &txo->q;
1714                 if (atomic_read(&txq->used))
1715                         dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1716                                 atomic_read(&txq->used));
1717
1718                 /* free posted tx for which compls will never arrive */
1719                 while (atomic_read(&txq->used)) {
1720                         sent_skb = txo->sent_skb_list[txq->tail];
1721                         end_idx = txq->tail;
1722                         num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1723                                                    &dummy_wrb);
1724                         index_adv(&end_idx, num_wrbs - 1, txq->len);
1725                         num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1726                         atomic_sub(num_wrbs, &txq->used);
1727                 }
1728         }
1729 }
1730
1731 static void be_evt_queues_destroy(struct be_adapter *adapter)
1732 {
1733         struct be_eq_obj *eqo;
1734         int i;
1735
1736         for_all_evt_queues(adapter, eqo, i) {
1737                 if (eqo->q.created) {
1738                         be_eq_clean(eqo);
1739                         be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1740                 }
1741                 be_queue_free(adapter, &eqo->q);
1742         }
1743 }
1744
1745 static int be_evt_queues_create(struct be_adapter *adapter)
1746 {
1747         struct be_queue_info *eq;
1748         struct be_eq_obj *eqo;
1749         int i, rc;
1750
1751         adapter->num_evt_qs = num_irqs(adapter);
1752
1753         for_all_evt_queues(adapter, eqo, i) {
1754                 eqo->adapter = adapter;
1755                 eqo->tx_budget = BE_TX_BUDGET;
1756                 eqo->idx = i;
1757                 eqo->max_eqd = BE_MAX_EQD;
1758                 eqo->enable_aic = true;
1759
1760                 eq = &eqo->q;
1761                 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1762                                         sizeof(struct be_eq_entry));
1763                 if (rc)
1764                         return rc;
1765
1766                 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1767                 if (rc)
1768                         return rc;
1769         }
1770         return 0;
1771 }
1772
1773 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1774 {
1775         struct be_queue_info *q;
1776
1777         q = &adapter->mcc_obj.q;
1778         if (q->created)
1779                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1780         be_queue_free(adapter, q);
1781
1782         q = &adapter->mcc_obj.cq;
1783         if (q->created)
1784                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1785         be_queue_free(adapter, q);
1786 }
1787
1788 /* Must be called only after TX qs are created as MCC shares TX EQ */
1789 static int be_mcc_queues_create(struct be_adapter *adapter)
1790 {
1791         struct be_queue_info *q, *cq;
1792
1793         cq = &adapter->mcc_obj.cq;
1794         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1795                         sizeof(struct be_mcc_compl)))
1796                 goto err;
1797
1798         /* Use the default EQ for MCC completions */
1799         if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1800                 goto mcc_cq_free;
1801
1802         q = &adapter->mcc_obj.q;
1803         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1804                 goto mcc_cq_destroy;
1805
1806         if (be_cmd_mccq_create(adapter, q, cq))
1807                 goto mcc_q_free;
1808
1809         return 0;
1810
1811 mcc_q_free:
1812         be_queue_free(adapter, q);
1813 mcc_cq_destroy:
1814         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1815 mcc_cq_free:
1816         be_queue_free(adapter, cq);
1817 err:
1818         return -1;
1819 }
1820
1821 static void be_tx_queues_destroy(struct be_adapter *adapter)
1822 {
1823         struct be_queue_info *q;
1824         struct be_tx_obj *txo;
1825         u8 i;
1826
1827         for_all_tx_queues(adapter, txo, i) {
1828                 q = &txo->q;
1829                 if (q->created)
1830                         be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1831                 be_queue_free(adapter, q);
1832
1833                 q = &txo->cq;
1834                 if (q->created)
1835                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1836                 be_queue_free(adapter, q);
1837         }
1838 }
1839
1840 static int be_num_txqs_want(struct be_adapter *adapter)
1841 {
1842         if (sriov_want(adapter) || be_is_mc(adapter) ||
1843             lancer_chip(adapter) || !be_physfn(adapter) ||
1844             adapter->generation == BE_GEN2)
1845                 return 1;
1846         else
1847                 return MAX_TX_QS;
1848 }
1849
1850 static int be_tx_cqs_create(struct be_adapter *adapter)
1851 {
1852         struct be_queue_info *cq, *eq;
1853         int status;
1854         struct be_tx_obj *txo;
1855         u8 i;
1856
1857         adapter->num_tx_qs = be_num_txqs_want(adapter);
1858         if (adapter->num_tx_qs != MAX_TX_QS) {
1859                 rtnl_lock();
1860                 netif_set_real_num_tx_queues(adapter->netdev,
1861                         adapter->num_tx_qs);
1862                 rtnl_unlock();
1863         }
1864
1865         for_all_tx_queues(adapter, txo, i) {
1866                 cq = &txo->cq;
1867                 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
1868                                         sizeof(struct be_eth_tx_compl));
1869                 if (status)
1870                         return status;
1871
1872                 /* If num_evt_qs is less than num_tx_qs, then more than
1873                  * one txq share an eq
1874                  */
1875                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1876                 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
1877                 if (status)
1878                         return status;
1879         }
1880         return 0;
1881 }
1882
1883 static int be_tx_qs_create(struct be_adapter *adapter)
1884 {
1885         struct be_tx_obj *txo;
1886         int i, status;
1887
1888         for_all_tx_queues(adapter, txo, i) {
1889                 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
1890                                         sizeof(struct be_eth_wrb));
1891                 if (status)
1892                         return status;
1893
1894                 status = be_cmd_txq_create(adapter, &txo->q, &txo->cq);
1895                 if (status)
1896                         return status;
1897         }
1898
1899         return 0;
1900 }
1901
1902 static void be_rx_cqs_destroy(struct be_adapter *adapter)
1903 {
1904         struct be_queue_info *q;
1905         struct be_rx_obj *rxo;
1906         int i;
1907
1908         for_all_rx_queues(adapter, rxo, i) {
1909                 q = &rxo->cq;
1910                 if (q->created)
1911                         be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1912                 be_queue_free(adapter, q);
1913         }
1914 }
1915
1916 static int be_rx_cqs_create(struct be_adapter *adapter)
1917 {
1918         struct be_queue_info *eq, *cq;
1919         struct be_rx_obj *rxo;
1920         int rc, i;
1921
1922         /* We'll create as many RSS rings as there are irqs.
1923          * But when there's only one irq there's no use creating RSS rings
1924          */
1925         adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
1926                                 num_irqs(adapter) + 1 : 1;
1927         if (adapter->num_rx_qs != MAX_RX_QS) {
1928                 rtnl_lock();
1929                 netif_set_real_num_rx_queues(adapter->netdev,
1930                                              adapter->num_rx_qs);
1931                 rtnl_unlock();
1932         }
1933
1934         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1935         for_all_rx_queues(adapter, rxo, i) {
1936                 rxo->adapter = adapter;
1937                 cq = &rxo->cq;
1938                 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1939                                 sizeof(struct be_eth_rx_compl));
1940                 if (rc)
1941                         return rc;
1942
1943                 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
1944                 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
1945                 if (rc)
1946                         return rc;
1947         }
1948
1949         if (adapter->num_rx_qs != MAX_RX_QS)
1950                 dev_info(&adapter->pdev->dev,
1951                         "Created only %d receive queues\n", adapter->num_rx_qs);
1952
1953         return 0;
1954 }
1955
1956 static irqreturn_t be_intx(int irq, void *dev)
1957 {
1958         struct be_adapter *adapter = dev;
1959         int num_evts;
1960
1961         /* With INTx only one EQ is used */
1962         num_evts = event_handle(&adapter->eq_obj[0]);
1963         if (num_evts)
1964                 return IRQ_HANDLED;
1965         else
1966                 return IRQ_NONE;
1967 }
1968
1969 static irqreturn_t be_msix(int irq, void *dev)
1970 {
1971         struct be_eq_obj *eqo = dev;
1972
1973         event_handle(eqo);
1974         return IRQ_HANDLED;
1975 }
1976
1977 static inline bool do_gro(struct be_rx_compl_info *rxcp)
1978 {
1979         return (rxcp->tcpf && !rxcp->err) ? true : false;
1980 }
1981
1982 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
1983                         int budget)
1984 {
1985         struct be_adapter *adapter = rxo->adapter;
1986         struct be_queue_info *rx_cq = &rxo->cq;
1987         struct be_rx_compl_info *rxcp;
1988         u32 work_done;
1989
1990         for (work_done = 0; work_done < budget; work_done++) {
1991                 rxcp = be_rx_compl_get(rxo);
1992                 if (!rxcp)
1993                         break;
1994
1995                 /* Is it a flush compl that has no data */
1996                 if (unlikely(rxcp->num_rcvd == 0))
1997                         goto loop_continue;
1998
1999                 /* Discard compl with partial DMA Lancer B0 */
2000                 if (unlikely(!rxcp->pkt_size)) {
2001                         be_rx_compl_discard(rxo, rxcp);
2002                         goto loop_continue;
2003                 }
2004
2005                 /* On BE drop pkts that arrive due to imperfect filtering in
2006                  * promiscuous mode on some skews
2007                  */
2008                 if (unlikely(rxcp->port != adapter->port_num &&
2009                                 !lancer_chip(adapter))) {
2010                         be_rx_compl_discard(rxo, rxcp);
2011                         goto loop_continue;
2012                 }
2013
2014                 if (do_gro(rxcp))
2015                         be_rx_compl_process_gro(rxo, napi, rxcp);
2016                 else
2017                         be_rx_compl_process(rxo, rxcp);
2018 loop_continue:
2019                 be_rx_stats_update(rxo, rxcp);
2020         }
2021
2022         if (work_done) {
2023                 be_cq_notify(adapter, rx_cq->id, true, work_done);
2024
2025                 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2026                         be_post_rx_frags(rxo, GFP_ATOMIC);
2027         }
2028
2029         return work_done;
2030 }
2031
2032 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2033                           int budget, int idx)
2034 {
2035         struct be_eth_tx_compl *txcp;
2036         int num_wrbs = 0, work_done;
2037
2038         for (work_done = 0; work_done < budget; work_done++) {
2039                 txcp = be_tx_compl_get(&txo->cq);
2040                 if (!txcp)
2041                         break;
2042                 num_wrbs += be_tx_compl_process(adapter, txo,
2043                                 AMAP_GET_BITS(struct amap_eth_tx_compl,
2044                                         wrb_index, txcp));
2045         }
2046
2047         if (work_done) {
2048                 be_cq_notify(adapter, txo->cq.id, true, work_done);
2049                 atomic_sub(num_wrbs, &txo->q.used);
2050
2051                 /* As Tx wrbs have been freed up, wake up netdev queue
2052                  * if it was stopped due to lack of tx wrbs.  */
2053                 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2054                         atomic_read(&txo->q.used) < txo->q.len / 2) {
2055                         netif_wake_subqueue(adapter->netdev, idx);
2056                 }
2057
2058                 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2059                 tx_stats(txo)->tx_compl += work_done;
2060                 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2061         }
2062         return (work_done < budget); /* Done */
2063 }
2064
2065 int be_poll(struct napi_struct *napi, int budget)
2066 {
2067         struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2068         struct be_adapter *adapter = eqo->adapter;
2069         int max_work = 0, work, i;
2070         bool tx_done;
2071
2072         /* Process all TXQs serviced by this EQ */
2073         for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2074                 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2075                                         eqo->tx_budget, i);
2076                 if (!tx_done)
2077                         max_work = budget;
2078         }
2079
2080         /* This loop will iterate twice for EQ0 in which
2081          * completions of the last RXQ (default one) are also processed
2082          * For other EQs the loop iterates only once
2083          */
2084         for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2085                 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2086                 max_work = max(work, max_work);
2087         }
2088
2089         if (is_mcc_eqo(eqo))
2090                 be_process_mcc(adapter);
2091
2092         if (max_work < budget) {
2093                 napi_complete(napi);
2094                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2095         } else {
2096                 /* As we'll continue in polling mode, count and clear events */
2097                 be_eq_notify(adapter, eqo->q.id, false, false, events_get(eqo));
2098         }
2099         return max_work;
2100 }
2101
2102 void be_detect_error(struct be_adapter *adapter)
2103 {
2104         u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2105         u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2106         u32 i;
2107
2108         if (be_crit_error(adapter))
2109                 return;
2110
2111         if (lancer_chip(adapter)) {
2112                 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2113                 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2114                         sliport_err1 = ioread32(adapter->db +
2115                                         SLIPORT_ERROR1_OFFSET);
2116                         sliport_err2 = ioread32(adapter->db +
2117                                         SLIPORT_ERROR2_OFFSET);
2118                 }
2119         } else {
2120                 pci_read_config_dword(adapter->pdev,
2121                                 PCICFG_UE_STATUS_LOW, &ue_lo);
2122                 pci_read_config_dword(adapter->pdev,
2123                                 PCICFG_UE_STATUS_HIGH, &ue_hi);
2124                 pci_read_config_dword(adapter->pdev,
2125                                 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2126                 pci_read_config_dword(adapter->pdev,
2127                                 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2128
2129                 ue_lo = (ue_lo & ~ue_lo_mask);
2130                 ue_hi = (ue_hi & ~ue_hi_mask);
2131         }
2132
2133         if (ue_lo || ue_hi ||
2134                 sliport_status & SLIPORT_STATUS_ERR_MASK) {
2135                 adapter->hw_error = true;
2136                 dev_err(&adapter->pdev->dev,
2137                         "Error detected in the card\n");
2138         }
2139
2140         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2141                 dev_err(&adapter->pdev->dev,
2142                         "ERR: sliport status 0x%x\n", sliport_status);
2143                 dev_err(&adapter->pdev->dev,
2144                         "ERR: sliport error1 0x%x\n", sliport_err1);
2145                 dev_err(&adapter->pdev->dev,
2146                         "ERR: sliport error2 0x%x\n", sliport_err2);
2147         }
2148
2149         if (ue_lo) {
2150                 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2151                         if (ue_lo & 1)
2152                                 dev_err(&adapter->pdev->dev,
2153                                 "UE: %s bit set\n", ue_status_low_desc[i]);
2154                 }
2155         }
2156
2157         if (ue_hi) {
2158                 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2159                         if (ue_hi & 1)
2160                                 dev_err(&adapter->pdev->dev,
2161                                 "UE: %s bit set\n", ue_status_hi_desc[i]);
2162                 }
2163         }
2164
2165 }
2166
2167 static void be_msix_disable(struct be_adapter *adapter)
2168 {
2169         if (msix_enabled(adapter)) {
2170                 pci_disable_msix(adapter->pdev);
2171                 adapter->num_msix_vec = 0;
2172         }
2173 }
2174
2175 static uint be_num_rss_want(struct be_adapter *adapter)
2176 {
2177         u32 num = 0;
2178         if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2179              !sriov_want(adapter) && be_physfn(adapter)) {
2180                 num = (adapter->be3_native) ? BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
2181                 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2182         }
2183         return num;
2184 }
2185
2186 static void be_msix_enable(struct be_adapter *adapter)
2187 {
2188 #define BE_MIN_MSIX_VECTORS             1
2189         int i, status, num_vec, num_roce_vec = 0;
2190
2191         /* If RSS queues are not used, need a vec for default RX Q */
2192         num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2193         if (be_roce_supported(adapter)) {
2194                 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2195                                         (num_online_cpus() + 1));
2196                 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2197                 num_vec += num_roce_vec;
2198                 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2199         }
2200         num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2201
2202         for (i = 0; i < num_vec; i++)
2203                 adapter->msix_entries[i].entry = i;
2204
2205         status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2206         if (status == 0) {
2207                 goto done;
2208         } else if (status >= BE_MIN_MSIX_VECTORS) {
2209                 num_vec = status;
2210                 if (pci_enable_msix(adapter->pdev, adapter->msix_entries,
2211                                 num_vec) == 0)
2212                         goto done;
2213         }
2214         return;
2215 done:
2216         if (be_roce_supported(adapter)) {
2217                 if (num_vec > num_roce_vec) {
2218                         adapter->num_msix_vec = num_vec - num_roce_vec;
2219                         adapter->num_msix_roce_vec =
2220                                 num_vec - adapter->num_msix_vec;
2221                 } else {
2222                         adapter->num_msix_vec = num_vec;
2223                         adapter->num_msix_roce_vec = 0;
2224                 }
2225         } else
2226                 adapter->num_msix_vec = num_vec;
2227         return;
2228 }
2229
2230 static inline int be_msix_vec_get(struct be_adapter *adapter,
2231                                 struct be_eq_obj *eqo)
2232 {
2233         return adapter->msix_entries[eqo->idx].vector;
2234 }
2235
2236 static int be_msix_register(struct be_adapter *adapter)
2237 {
2238         struct net_device *netdev = adapter->netdev;
2239         struct be_eq_obj *eqo;
2240         int status, i, vec;
2241
2242         for_all_evt_queues(adapter, eqo, i) {
2243                 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2244                 vec = be_msix_vec_get(adapter, eqo);
2245                 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2246                 if (status)
2247                         goto err_msix;
2248         }
2249
2250         return 0;
2251 err_msix:
2252         for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2253                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2254         dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2255                 status);
2256         be_msix_disable(adapter);
2257         return status;
2258 }
2259
2260 static int be_irq_register(struct be_adapter *adapter)
2261 {
2262         struct net_device *netdev = adapter->netdev;
2263         int status;
2264
2265         if (msix_enabled(adapter)) {
2266                 status = be_msix_register(adapter);
2267                 if (status == 0)
2268                         goto done;
2269                 /* INTx is not supported for VF */
2270                 if (!be_physfn(adapter))
2271                         return status;
2272         }
2273
2274         /* INTx */
2275         netdev->irq = adapter->pdev->irq;
2276         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2277                         adapter);
2278         if (status) {
2279                 dev_err(&adapter->pdev->dev,
2280                         "INTx request IRQ failed - err %d\n", status);
2281                 return status;
2282         }
2283 done:
2284         adapter->isr_registered = true;
2285         return 0;
2286 }
2287
2288 static void be_irq_unregister(struct be_adapter *adapter)
2289 {
2290         struct net_device *netdev = adapter->netdev;
2291         struct be_eq_obj *eqo;
2292         int i;
2293
2294         if (!adapter->isr_registered)
2295                 return;
2296
2297         /* INTx */
2298         if (!msix_enabled(adapter)) {
2299                 free_irq(netdev->irq, adapter);
2300                 goto done;
2301         }
2302
2303         /* MSIx */
2304         for_all_evt_queues(adapter, eqo, i)
2305                 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2306
2307 done:
2308         adapter->isr_registered = false;
2309 }
2310
2311 static void be_rx_qs_destroy(struct be_adapter *adapter)
2312 {
2313         struct be_queue_info *q;
2314         struct be_rx_obj *rxo;
2315         int i;
2316
2317         for_all_rx_queues(adapter, rxo, i) {
2318                 q = &rxo->q;
2319                 if (q->created) {
2320                         be_cmd_rxq_destroy(adapter, q);
2321                         /* After the rxq is invalidated, wait for a grace time
2322                          * of 1ms for all dma to end and the flush compl to
2323                          * arrive
2324                          */
2325                         mdelay(1);
2326                         be_rx_cq_clean(rxo);
2327                 }
2328                 be_queue_free(adapter, q);
2329         }
2330 }
2331
2332 static int be_close(struct net_device *netdev)
2333 {
2334         struct be_adapter *adapter = netdev_priv(netdev);
2335         struct be_eq_obj *eqo;
2336         int i;
2337
2338         be_roce_dev_close(adapter);
2339
2340         be_async_mcc_disable(adapter);
2341
2342         if (!lancer_chip(adapter))
2343                 be_intr_set(adapter, false);
2344
2345         for_all_evt_queues(adapter, eqo, i) {
2346                 napi_disable(&eqo->napi);
2347                 if (msix_enabled(adapter))
2348                         synchronize_irq(be_msix_vec_get(adapter, eqo));
2349                 else
2350                         synchronize_irq(netdev->irq);
2351                 be_eq_clean(eqo);
2352         }
2353
2354         be_irq_unregister(adapter);
2355
2356         /* Wait for all pending tx completions to arrive so that
2357          * all tx skbs are freed.
2358          */
2359         be_tx_compl_clean(adapter);
2360
2361         be_rx_qs_destroy(adapter);
2362         return 0;
2363 }
2364
2365 static int be_rx_qs_create(struct be_adapter *adapter)
2366 {
2367         struct be_rx_obj *rxo;
2368         int rc, i, j;
2369         u8 rsstable[128];
2370
2371         for_all_rx_queues(adapter, rxo, i) {
2372                 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2373                                     sizeof(struct be_eth_rx_d));
2374                 if (rc)
2375                         return rc;
2376         }
2377
2378         /* The FW would like the default RXQ to be created first */
2379         rxo = default_rxo(adapter);
2380         rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2381                                adapter->if_handle, false, &rxo->rss_id);
2382         if (rc)
2383                 return rc;
2384
2385         for_all_rss_queues(adapter, rxo, i) {
2386                 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2387                                        rx_frag_size, adapter->if_handle,
2388                                        true, &rxo->rss_id);
2389                 if (rc)
2390                         return rc;
2391         }
2392
2393         if (be_multi_rxq(adapter)) {
2394                 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2395                         for_all_rss_queues(adapter, rxo, i) {
2396                                 if ((j + i) >= 128)
2397                                         break;
2398                                 rsstable[j + i] = rxo->rss_id;
2399                         }
2400                 }
2401                 rc = be_cmd_rss_config(adapter, rsstable, 128);
2402                 if (rc)
2403                         return rc;
2404         }
2405
2406         /* First time posting */
2407         for_all_rx_queues(adapter, rxo, i)
2408                 be_post_rx_frags(rxo, GFP_KERNEL);
2409         return 0;
2410 }
2411
2412 static int be_open(struct net_device *netdev)
2413 {
2414         struct be_adapter *adapter = netdev_priv(netdev);
2415         struct be_eq_obj *eqo;
2416         struct be_rx_obj *rxo;
2417         struct be_tx_obj *txo;
2418         u8 link_status;
2419         int status, i;
2420
2421         status = be_rx_qs_create(adapter);
2422         if (status)
2423                 goto err;
2424
2425         be_irq_register(adapter);
2426
2427         if (!lancer_chip(adapter))
2428                 be_intr_set(adapter, true);
2429
2430         for_all_rx_queues(adapter, rxo, i)
2431                 be_cq_notify(adapter, rxo->cq.id, true, 0);
2432
2433         for_all_tx_queues(adapter, txo, i)
2434                 be_cq_notify(adapter, txo->cq.id, true, 0);
2435
2436         be_async_mcc_enable(adapter);
2437
2438         for_all_evt_queues(adapter, eqo, i) {
2439                 napi_enable(&eqo->napi);
2440                 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2441         }
2442
2443         status = be_cmd_link_status_query(adapter, NULL, NULL,
2444                                           &link_status, 0);
2445         if (!status)
2446                 be_link_status_update(adapter, link_status);
2447
2448         be_roce_dev_open(adapter);
2449         return 0;
2450 err:
2451         be_close(adapter->netdev);
2452         return -EIO;
2453 }
2454
2455 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2456 {
2457         struct be_dma_mem cmd;
2458         int status = 0;
2459         u8 mac[ETH_ALEN];
2460
2461         memset(mac, 0, ETH_ALEN);
2462
2463         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2464         cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2465                                     GFP_KERNEL);
2466         if (cmd.va == NULL)
2467                 return -1;
2468         memset(cmd.va, 0, cmd.size);
2469
2470         if (enable) {
2471                 status = pci_write_config_dword(adapter->pdev,
2472                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2473                 if (status) {
2474                         dev_err(&adapter->pdev->dev,
2475                                 "Could not enable Wake-on-lan\n");
2476                         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2477                                           cmd.dma);
2478                         return status;
2479                 }
2480                 status = be_cmd_enable_magic_wol(adapter,
2481                                 adapter->netdev->dev_addr, &cmd);
2482                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2483                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2484         } else {
2485                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2486                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2487                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2488         }
2489
2490         dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2491         return status;
2492 }
2493
2494 /*
2495  * Generate a seed MAC address from the PF MAC Address using jhash.
2496  * MAC Address for VFs are assigned incrementally starting from the seed.
2497  * These addresses are programmed in the ASIC by the PF and the VF driver
2498  * queries for the MAC address during its probe.
2499  */
2500 static inline int be_vf_eth_addr_config(struct be_adapter *adapter)
2501 {
2502         u32 vf;
2503         int status = 0;
2504         u8 mac[ETH_ALEN];
2505         struct be_vf_cfg *vf_cfg;
2506
2507         be_vf_eth_addr_generate(adapter, mac);
2508
2509         for_all_vfs(adapter, vf_cfg, vf) {
2510                 if (lancer_chip(adapter)) {
2511                         status = be_cmd_set_mac_list(adapter,  mac, 1, vf + 1);
2512                 } else {
2513                         status = be_cmd_pmac_add(adapter, mac,
2514                                                  vf_cfg->if_handle,
2515                                                  &vf_cfg->pmac_id, vf + 1);
2516                 }
2517
2518                 if (status)
2519                         dev_err(&adapter->pdev->dev,
2520                         "Mac address assignment failed for VF %d\n", vf);
2521                 else
2522                         memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2523
2524                 mac[5] += 1;
2525         }
2526         return status;
2527 }
2528
2529 static void be_vf_clear(struct be_adapter *adapter)
2530 {
2531         struct be_vf_cfg *vf_cfg;
2532         u32 vf;
2533
2534         if (be_find_vfs(adapter, ASSIGNED)) {
2535                 dev_warn(&adapter->pdev->dev, "VFs are assigned to VMs\n");
2536                 goto done;
2537         }
2538
2539         for_all_vfs(adapter, vf_cfg, vf) {
2540                 if (lancer_chip(adapter))
2541                         be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2542                 else
2543                         be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2544                                         vf_cfg->pmac_id, vf + 1);
2545
2546                 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2547         }
2548         pci_disable_sriov(adapter->pdev);
2549 done:
2550         kfree(adapter->vf_cfg);
2551         adapter->num_vfs = 0;
2552 }
2553
2554 static int be_clear(struct be_adapter *adapter)
2555 {
2556         int i = 1;
2557
2558         if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2559                 cancel_delayed_work_sync(&adapter->work);
2560                 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2561         }
2562
2563         if (sriov_enabled(adapter))
2564                 be_vf_clear(adapter);
2565
2566         for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2567                 be_cmd_pmac_del(adapter, adapter->if_handle,
2568                         adapter->pmac_id[i], 0);
2569
2570         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
2571
2572         be_mcc_queues_destroy(adapter);
2573         be_rx_cqs_destroy(adapter);
2574         be_tx_queues_destroy(adapter);
2575         be_evt_queues_destroy(adapter);
2576
2577         be_msix_disable(adapter);
2578         return 0;
2579 }
2580
2581 static int be_vf_setup_init(struct be_adapter *adapter)
2582 {
2583         struct be_vf_cfg *vf_cfg;
2584         int vf;
2585
2586         adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2587                                   GFP_KERNEL);
2588         if (!adapter->vf_cfg)
2589                 return -ENOMEM;
2590
2591         for_all_vfs(adapter, vf_cfg, vf) {
2592                 vf_cfg->if_handle = -1;
2593                 vf_cfg->pmac_id = -1;
2594         }
2595         return 0;
2596 }
2597
2598 static int be_vf_setup(struct be_adapter *adapter)
2599 {
2600         struct be_vf_cfg *vf_cfg;
2601         struct device *dev = &adapter->pdev->dev;
2602         u32 cap_flags, en_flags, vf;
2603         u16 def_vlan, lnk_speed;
2604         int status, enabled_vfs;
2605
2606         enabled_vfs = be_find_vfs(adapter, ENABLED);
2607         if (enabled_vfs) {
2608                 dev_warn(dev, "%d VFs are already enabled\n", enabled_vfs);
2609                 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2610                 return 0;
2611         }
2612
2613         if (num_vfs > adapter->dev_num_vfs) {
2614                 dev_warn(dev, "Device supports %d VFs and not %d\n",
2615                          adapter->dev_num_vfs, num_vfs);
2616                 num_vfs = adapter->dev_num_vfs;
2617         }
2618
2619         status = pci_enable_sriov(adapter->pdev, num_vfs);
2620         if (!status) {
2621                 adapter->num_vfs = num_vfs;
2622         } else {
2623                 /* Platform doesn't support SRIOV though device supports it */
2624                 dev_warn(dev, "SRIOV enable failed\n");
2625                 return 0;
2626         }
2627
2628         status = be_vf_setup_init(adapter);
2629         if (status)
2630                 goto err;
2631
2632         cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2633                                 BE_IF_FLAGS_MULTICAST;
2634         for_all_vfs(adapter, vf_cfg, vf) {
2635                 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2636                                           &vf_cfg->if_handle, vf + 1);
2637                 if (status)
2638                         goto err;
2639         }
2640
2641         if (!enabled_vfs) {
2642                 status = be_vf_eth_addr_config(adapter);
2643                 if (status)
2644                         goto err;
2645         }
2646
2647         for_all_vfs(adapter, vf_cfg, vf) {
2648                 lnk_speed = 1000;
2649                 status = be_cmd_set_qos(adapter, lnk_speed, vf + 1);
2650                 if (status)
2651                         goto err;
2652                 vf_cfg->tx_rate = lnk_speed * 10;
2653
2654                 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2655                                 vf + 1, vf_cfg->if_handle);
2656                 if (status)
2657                         goto err;
2658                 vf_cfg->def_vid = def_vlan;
2659         }
2660         return 0;
2661 err:
2662         return status;
2663 }
2664
2665 static void be_setup_init(struct be_adapter *adapter)
2666 {
2667         adapter->vlan_prio_bmap = 0xff;
2668         adapter->phy.link_speed = -1;
2669         adapter->if_handle = -1;
2670         adapter->be3_native = false;
2671         adapter->promiscuous = false;
2672         adapter->eq_next_idx = 0;
2673         adapter->phy.forced_port_speed = -1;
2674 }
2675
2676 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2677                            bool *active_mac, u32 *pmac_id)
2678 {
2679         int status = 0;
2680
2681         if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2682                 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2683                 if (!lancer_chip(adapter) && !be_physfn(adapter))
2684                         *active_mac = true;
2685                 else
2686                         *active_mac = false;
2687
2688                 return status;
2689         }
2690
2691         if (lancer_chip(adapter)) {
2692                 status = be_cmd_get_mac_from_list(adapter, mac,
2693                                                   active_mac, pmac_id, 0);
2694                 if (*active_mac) {
2695                         status = be_cmd_mac_addr_query(adapter, mac,
2696                                                        MAC_ADDRESS_TYPE_NETWORK,
2697                                                        false, if_handle,
2698                                                        *pmac_id);
2699                 }
2700         } else if (be_physfn(adapter)) {
2701                 /* For BE3, for PF get permanent MAC */
2702                 status = be_cmd_mac_addr_query(adapter, mac,
2703                                                MAC_ADDRESS_TYPE_NETWORK, true,
2704                                                0, 0);
2705                 *active_mac = false;
2706         } else {
2707                 /* For BE3, for VF get soft MAC assigned by PF*/
2708                 status = be_cmd_mac_addr_query(adapter, mac,
2709                                                MAC_ADDRESS_TYPE_NETWORK, false,
2710                                                if_handle, 0);
2711                 *active_mac = true;
2712         }
2713         return status;
2714 }
2715
2716 /* Routine to query per function resource limits */
2717 static int be_get_config(struct be_adapter *adapter)
2718 {
2719         int pos;
2720         u16 dev_num_vfs;
2721
2722         pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
2723         if (pos) {
2724                 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
2725                                      &dev_num_vfs);
2726                 if (!lancer_chip(adapter))
2727                         dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
2728                 adapter->dev_num_vfs = dev_num_vfs;
2729         }
2730         return 0;
2731 }
2732
2733 static int be_setup(struct be_adapter *adapter)
2734 {
2735         struct device *dev = &adapter->pdev->dev;
2736         u32 cap_flags, en_flags;
2737         u32 tx_fc, rx_fc;
2738         int status;
2739         u8 mac[ETH_ALEN];
2740         bool active_mac;
2741
2742         be_setup_init(adapter);
2743
2744         be_get_config(adapter);
2745
2746         be_cmd_req_native_mode(adapter);
2747
2748         be_msix_enable(adapter);
2749
2750         status = be_evt_queues_create(adapter);
2751         if (status)
2752                 goto err;
2753
2754         status = be_tx_cqs_create(adapter);
2755         if (status)
2756                 goto err;
2757
2758         status = be_rx_cqs_create(adapter);
2759         if (status)
2760                 goto err;
2761
2762         status = be_mcc_queues_create(adapter);
2763         if (status)
2764                 goto err;
2765
2766         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2767                         BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
2768         cap_flags = en_flags | BE_IF_FLAGS_MCAST_PROMISCUOUS |
2769                         BE_IF_FLAGS_VLAN_PROMISCUOUS | BE_IF_FLAGS_PROMISCUOUS;
2770
2771         if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) {
2772                 cap_flags |= BE_IF_FLAGS_RSS;
2773                 en_flags |= BE_IF_FLAGS_RSS;
2774         }
2775
2776         if (lancer_chip(adapter) && !be_physfn(adapter)) {
2777                 en_flags = BE_IF_FLAGS_UNTAGGED |
2778                             BE_IF_FLAGS_BROADCAST |
2779                             BE_IF_FLAGS_MULTICAST;
2780                 cap_flags = en_flags;
2781         }
2782
2783         status = be_cmd_if_create(adapter, cap_flags, en_flags,
2784                                   &adapter->if_handle, 0);
2785         if (status != 0)
2786                 goto err;
2787
2788         memset(mac, 0, ETH_ALEN);
2789         active_mac = false;
2790         status = be_get_mac_addr(adapter, mac, adapter->if_handle,
2791                                  &active_mac, &adapter->pmac_id[0]);
2792         if (status != 0)
2793                 goto err;
2794
2795         if (!active_mac) {
2796                 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
2797                                          &adapter->pmac_id[0], 0);
2798                 if (status != 0)
2799                         goto err;
2800         }
2801
2802         if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
2803                 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2804                 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2805         }
2806
2807         status = be_tx_qs_create(adapter);
2808         if (status)
2809                 goto err;
2810
2811         be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
2812
2813         if (adapter->vlans_added)
2814                 be_vid_config(adapter);
2815
2816         be_set_rx_mode(adapter->netdev);
2817
2818         be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
2819
2820         if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
2821                 be_cmd_set_flow_control(adapter, adapter->tx_fc,
2822                                         adapter->rx_fc);
2823
2824         if (be_physfn(adapter) && num_vfs) {
2825                 if (adapter->dev_num_vfs)
2826                         be_vf_setup(adapter);
2827                 else
2828                         dev_warn(dev, "device doesn't support SRIOV\n");
2829         }
2830
2831         be_cmd_get_phy_info(adapter);
2832         if (be_pause_supported(adapter))
2833                 adapter->phy.fc_autoneg = 1;
2834
2835         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
2836         adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
2837         return 0;
2838 err:
2839         be_clear(adapter);
2840         return status;
2841 }
2842
2843 #ifdef CONFIG_NET_POLL_CONTROLLER
2844 static void be_netpoll(struct net_device *netdev)
2845 {
2846         struct be_adapter *adapter = netdev_priv(netdev);
2847         struct be_eq_obj *eqo;
2848         int i;
2849
2850         for_all_evt_queues(adapter, eqo, i)
2851                 event_handle(eqo);
2852
2853         return;
2854 }
2855 #endif
2856
2857 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
2858 char flash_cookie[2][16] =      {"*** SE FLAS", "H DIRECTORY *** "};
2859
2860 static bool be_flash_redboot(struct be_adapter *adapter,
2861                         const u8 *p, u32 img_start, int image_size,
2862                         int hdr_size)
2863 {
2864         u32 crc_offset;
2865         u8 flashed_crc[4];
2866         int status;
2867
2868         crc_offset = hdr_size + img_start + image_size - 4;
2869
2870         p += crc_offset;
2871
2872         status = be_cmd_get_flash_crc(adapter, flashed_crc,
2873                         (image_size - 4));
2874         if (status) {
2875                 dev_err(&adapter->pdev->dev,
2876                 "could not get crc from flash, not flashing redboot\n");
2877                 return false;
2878         }
2879
2880         /*update redboot only if crc does not match*/
2881         if (!memcmp(flashed_crc, p, 4))
2882                 return false;
2883         else
2884                 return true;
2885 }
2886
2887 static bool phy_flashing_required(struct be_adapter *adapter)
2888 {
2889         return (adapter->phy.phy_type == TN_8022 &&
2890                 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
2891 }
2892
2893 static bool is_comp_in_ufi(struct be_adapter *adapter,
2894                            struct flash_section_info *fsec, int type)
2895 {
2896         int i = 0, img_type = 0;
2897         struct flash_section_info_g2 *fsec_g2 = NULL;
2898
2899         if (adapter->generation != BE_GEN3)
2900                 fsec_g2 = (struct flash_section_info_g2 *)fsec;
2901
2902         for (i = 0; i < MAX_FLASH_COMP; i++) {
2903                 if (fsec_g2)
2904                         img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
2905                 else
2906                         img_type = le32_to_cpu(fsec->fsec_entry[i].type);
2907
2908                 if (img_type == type)
2909                         return true;
2910         }
2911         return false;
2912
2913 }
2914
2915 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
2916                                          int header_size,
2917                                          const struct firmware *fw)
2918 {
2919         struct flash_section_info *fsec = NULL;
2920         const u8 *p = fw->data;
2921
2922         p += header_size;
2923         while (p < (fw->data + fw->size)) {
2924                 fsec = (struct flash_section_info *)p;
2925                 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
2926                         return fsec;
2927                 p += 32;
2928         }
2929         return NULL;
2930 }
2931
2932 static int be_flash_data(struct be_adapter *adapter,
2933                          const struct firmware *fw,
2934                          struct be_dma_mem *flash_cmd,
2935                          int num_of_images)
2936
2937 {
2938         int status = 0, i, filehdr_size = 0;
2939         int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
2940         u32 total_bytes = 0, flash_op;
2941         int num_bytes;
2942         const u8 *p = fw->data;
2943         struct be_cmd_write_flashrom *req = flash_cmd->va;
2944         const struct flash_comp *pflashcomp;
2945         int num_comp, hdr_size;
2946         struct flash_section_info *fsec = NULL;
2947
2948         struct flash_comp gen3_flash_types[] = {
2949                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
2950                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
2951                 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
2952                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
2953                 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
2954                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
2955                 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
2956                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
2957                 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
2958                         FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
2959                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
2960                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
2961                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
2962                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
2963                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
2964                         FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
2965                 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
2966                         FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
2967                 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
2968                         FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
2969         };
2970
2971         struct flash_comp gen2_flash_types[] = {
2972                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
2973                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
2974                 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
2975                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
2976                 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
2977                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
2978                 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
2979                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
2980                 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
2981                         FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
2982                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
2983                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
2984                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
2985                         FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
2986                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
2987                          FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
2988         };
2989
2990         if (adapter->generation == BE_GEN3) {
2991                 pflashcomp = gen3_flash_types;
2992                 filehdr_size = sizeof(struct flash_file_hdr_g3);
2993                 num_comp = ARRAY_SIZE(gen3_flash_types);
2994         } else {
2995                 pflashcomp = gen2_flash_types;
2996                 filehdr_size = sizeof(struct flash_file_hdr_g2);
2997                 num_comp = ARRAY_SIZE(gen2_flash_types);
2998         }
2999         /* Get flash section info*/
3000         fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3001         if (!fsec) {
3002                 dev_err(&adapter->pdev->dev,
3003                         "Invalid Cookie. UFI corrupted ?\n");
3004                 return -1;
3005         }
3006         for (i = 0; i < num_comp; i++) {
3007                 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3008                         continue;
3009
3010                 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3011                     memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3012                         continue;
3013
3014                 if (pflashcomp[i].optype == OPTYPE_PHY_FW) {
3015                         if (!phy_flashing_required(adapter))
3016                                 continue;
3017                 }
3018
3019                 hdr_size = filehdr_size +
3020                            (num_of_images * sizeof(struct image_hdr));
3021
3022                 if ((pflashcomp[i].optype == OPTYPE_REDBOOT) &&
3023                     (!be_flash_redboot(adapter, fw->data, pflashcomp[i].offset,
3024                                        pflashcomp[i].size, hdr_size)))
3025                         continue;
3026
3027                 /* Flash the component */
3028                 p = fw->data;
3029                 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3030                 if (p + pflashcomp[i].size > fw->data + fw->size)
3031                         return -1;
3032                 total_bytes = pflashcomp[i].size;
3033                 while (total_bytes) {
3034                         if (total_bytes > 32*1024)
3035                                 num_bytes = 32*1024;
3036                         else
3037                                 num_bytes = total_bytes;
3038                         total_bytes -= num_bytes;
3039                         if (!total_bytes) {
3040                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3041                                         flash_op = FLASHROM_OPER_PHY_FLASH;
3042                                 else
3043                                         flash_op = FLASHROM_OPER_FLASH;
3044                         } else {
3045                                 if (pflashcomp[i].optype == OPTYPE_PHY_FW)
3046                                         flash_op = FLASHROM_OPER_PHY_SAVE;
3047                                 else
3048                                         flash_op = FLASHROM_OPER_SAVE;
3049                         }
3050                         memcpy(req->params.data_buf, p, num_bytes);
3051                         p += num_bytes;
3052                         status = be_cmd_write_flashrom(adapter, flash_cmd,
3053                                 pflashcomp[i].optype, flash_op, num_bytes);
3054                         if (status) {
3055                                 if ((status == ILLEGAL_IOCTL_REQ) &&
3056                                         (pflashcomp[i].optype ==
3057                                                 OPTYPE_PHY_FW))
3058                                         break;
3059                                 dev_err(&adapter->pdev->dev,
3060                                         "cmd to write to flash rom failed.\n");
3061                                 return -1;
3062                         }
3063                 }
3064         }
3065         return 0;
3066 }
3067
3068 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
3069 {
3070         if (fhdr == NULL)
3071                 return 0;
3072         if (fhdr->build[0] == '3')
3073                 return BE_GEN3;
3074         else if (fhdr->build[0] == '2')
3075                 return BE_GEN2;
3076         else
3077                 return 0;
3078 }
3079
3080 static int lancer_wait_idle(struct be_adapter *adapter)
3081 {
3082 #define SLIPORT_IDLE_TIMEOUT 30
3083         u32 reg_val;
3084         int status = 0, i;
3085
3086         for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
3087                 reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
3088                 if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
3089                         break;
3090
3091                 ssleep(1);
3092         }
3093
3094         if (i == SLIPORT_IDLE_TIMEOUT)
3095                 status = -1;
3096
3097         return status;
3098 }
3099
3100 static int lancer_fw_reset(struct be_adapter *adapter)
3101 {
3102         int status = 0;
3103
3104         status = lancer_wait_idle(adapter);
3105         if (status)
3106                 return status;
3107
3108         iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
3109                   PHYSDEV_CONTROL_OFFSET);
3110
3111         return status;
3112 }
3113
3114 static int lancer_fw_download(struct be_adapter *adapter,
3115                                 const struct firmware *fw)
3116 {
3117 #define LANCER_FW_DOWNLOAD_CHUNK      (32 * 1024)
3118 #define LANCER_FW_DOWNLOAD_LOCATION   "/prg"
3119         struct be_dma_mem flash_cmd;
3120         const u8 *data_ptr = NULL;
3121         u8 *dest_image_ptr = NULL;
3122         size_t image_size = 0;
3123         u32 chunk_size = 0;
3124         u32 data_written = 0;
3125         u32 offset = 0;
3126         int status = 0;
3127         u8 add_status = 0;
3128         u8 change_status;
3129
3130         if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3131                 dev_err(&adapter->pdev->dev,
3132                         "FW Image not properly aligned. "
3133                         "Length must be 4 byte aligned.\n");
3134                 status = -EINVAL;
3135                 goto lancer_fw_exit;
3136         }
3137
3138         flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3139                                 + LANCER_FW_DOWNLOAD_CHUNK;
3140         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3141                                                 &flash_cmd.dma, GFP_KERNEL);
3142         if (!flash_cmd.va) {
3143                 status = -ENOMEM;
3144                 dev_err(&adapter->pdev->dev,
3145                         "Memory allocation failure while flashing\n");
3146                 goto lancer_fw_exit;
3147         }
3148
3149         dest_image_ptr = flash_cmd.va +
3150                                 sizeof(struct lancer_cmd_req_write_object);
3151         image_size = fw->size;
3152         data_ptr = fw->data;
3153
3154         while (image_size) {
3155                 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3156
3157                 /* Copy the image chunk content. */
3158                 memcpy(dest_image_ptr, data_ptr, chunk_size);
3159
3160                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3161                                                  chunk_size, offset,
3162                                                  LANCER_FW_DOWNLOAD_LOCATION,
3163                                                  &data_written, &change_status,
3164                                                  &add_status);
3165                 if (status)
3166                         break;
3167
3168                 offset += data_written;
3169                 data_ptr += data_written;
3170                 image_size -= data_written;
3171         }
3172
3173         if (!status) {
3174                 /* Commit the FW written */
3175                 status = lancer_cmd_write_object(adapter, &flash_cmd,
3176                                                  0, offset,
3177                                                  LANCER_FW_DOWNLOAD_LOCATION,
3178                                                  &data_written, &change_status,
3179                                                  &add_status);
3180         }
3181
3182         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3183                                 flash_cmd.dma);
3184         if (status) {
3185                 dev_err(&adapter->pdev->dev,
3186                         "Firmware load error. "
3187                         "Status code: 0x%x Additional Status: 0x%x\n",
3188                         status, add_status);
3189                 goto lancer_fw_exit;
3190         }
3191
3192         if (change_status == LANCER_FW_RESET_NEEDED) {
3193                 status = lancer_fw_reset(adapter);
3194                 if (status) {
3195                         dev_err(&adapter->pdev->dev,
3196                                 "Adapter busy for FW reset.\n"
3197                                 "New FW will not be active.\n");
3198                         goto lancer_fw_exit;
3199                 }
3200         } else if (change_status != LANCER_NO_RESET_NEEDED) {
3201                         dev_err(&adapter->pdev->dev,
3202                                 "System reboot required for new FW"
3203                                 " to be active\n");
3204         }
3205
3206         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3207 lancer_fw_exit:
3208         return status;
3209 }
3210
3211 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3212 {
3213         struct flash_file_hdr_g2 *fhdr;
3214         struct flash_file_hdr_g3 *fhdr3;
3215         struct image_hdr *img_hdr_ptr = NULL;
3216         struct be_dma_mem flash_cmd;
3217         const u8 *p;
3218         int status = 0, i = 0, num_imgs = 0;
3219
3220         p = fw->data;
3221         fhdr = (struct flash_file_hdr_g2 *) p;
3222
3223         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
3224         flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3225                                           &flash_cmd.dma, GFP_KERNEL);
3226         if (!flash_cmd.va) {
3227                 status = -ENOMEM;
3228                 dev_err(&adapter->pdev->dev,
3229                         "Memory allocation failure while flashing\n");
3230                 goto be_fw_exit;
3231         }
3232
3233         if ((adapter->generation == BE_GEN3) &&
3234                         (get_ufigen_type(fhdr) == BE_GEN3)) {
3235                 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
3236                 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3237                 for (i = 0; i < num_imgs; i++) {
3238                         img_hdr_ptr = (struct image_hdr *) (fw->data +
3239                                         (sizeof(struct flash_file_hdr_g3) +
3240                                          i * sizeof(struct image_hdr)));
3241                         if (le32_to_cpu(img_hdr_ptr->imageid) == 1)
3242                                 status = be_flash_data(adapter, fw, &flash_cmd,
3243                                                         num_imgs);
3244                 }
3245         } else if ((adapter->generation == BE_GEN2) &&
3246                         (get_ufigen_type(fhdr) == BE_GEN2)) {
3247                 status = be_flash_data(adapter, fw, &flash_cmd, 0);
3248         } else {
3249                 dev_err(&adapter->pdev->dev,
3250                         "UFI and Interface are not compatible for flashing\n");
3251                 status = -1;
3252         }
3253
3254         dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3255                           flash_cmd.dma);
3256         if (status) {
3257                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3258                 goto be_fw_exit;
3259         }
3260
3261         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3262
3263 be_fw_exit:
3264         return status;
3265 }
3266
3267 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3268 {
3269         const struct firmware *fw;
3270         int status;
3271
3272         if (!netif_running(adapter->netdev)) {
3273                 dev_err(&adapter->pdev->dev,
3274                         "Firmware load not allowed (interface is down)\n");
3275                 return -1;
3276         }
3277
3278         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3279         if (status)
3280                 goto fw_exit;
3281
3282         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3283
3284         if (lancer_chip(adapter))
3285                 status = lancer_fw_download(adapter, fw);
3286         else
3287                 status = be_fw_download(adapter, fw);
3288
3289 fw_exit:
3290         release_firmware(fw);
3291         return status;
3292 }
3293
3294 static const struct net_device_ops be_netdev_ops = {
3295         .ndo_open               = be_open,
3296         .ndo_stop               = be_close,
3297         .ndo_start_xmit         = be_xmit,
3298         .ndo_set_rx_mode        = be_set_rx_mode,
3299         .ndo_set_mac_address    = be_mac_addr_set,
3300         .ndo_change_mtu         = be_change_mtu,
3301         .ndo_get_stats64        = be_get_stats64,
3302         .ndo_validate_addr      = eth_validate_addr,
3303         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
3304         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
3305         .ndo_set_vf_mac         = be_set_vf_mac,
3306         .ndo_set_vf_vlan        = be_set_vf_vlan,
3307         .ndo_set_vf_tx_rate     = be_set_vf_tx_rate,
3308         .ndo_get_vf_config      = be_get_vf_config,
3309 #ifdef CONFIG_NET_POLL_CONTROLLER
3310         .ndo_poll_controller    = be_netpoll,
3311 #endif
3312 };
3313
3314 static void be_netdev_init(struct net_device *netdev)
3315 {
3316         struct be_adapter *adapter = netdev_priv(netdev);
3317         struct be_eq_obj *eqo;
3318         int i;
3319
3320         netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3321                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3322                 NETIF_F_HW_VLAN_TX;
3323         if (be_multi_rxq(adapter))
3324                 netdev->hw_features |= NETIF_F_RXHASH;
3325
3326         netdev->features |= netdev->hw_features |
3327                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
3328
3329         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3330                 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3331
3332         netdev->priv_flags |= IFF_UNICAST_FLT;
3333
3334         netdev->flags |= IFF_MULTICAST;
3335
3336         netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3337
3338         netdev->netdev_ops = &be_netdev_ops;
3339
3340         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3341
3342         for_all_evt_queues(adapter, eqo, i)
3343                 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3344 }
3345
3346 static void be_unmap_pci_bars(struct be_adapter *adapter)
3347 {
3348         if (adapter->csr)
3349                 iounmap(adapter->csr);
3350         if (adapter->db)
3351                 iounmap(adapter->db);
3352         if (adapter->roce_db.base)
3353                 pci_iounmap(adapter->pdev, adapter->roce_db.base);
3354 }
3355
3356 static int lancer_roce_map_pci_bars(struct be_adapter *adapter)
3357 {
3358         struct pci_dev *pdev = adapter->pdev;
3359         u8 __iomem *addr;
3360
3361         addr = pci_iomap(pdev, 2, 0);
3362         if (addr == NULL)
3363                 return -ENOMEM;
3364
3365         adapter->roce_db.base = addr;
3366         adapter->roce_db.io_addr = pci_resource_start(pdev, 2);
3367         adapter->roce_db.size = 8192;
3368         adapter->roce_db.total_size = pci_resource_len(pdev, 2);
3369         return 0;
3370 }
3371
3372 static int be_map_pci_bars(struct be_adapter *adapter)
3373 {
3374         u8 __iomem *addr;
3375         int db_reg;
3376
3377         if (lancer_chip(adapter)) {
3378                 if (be_type_2_3(adapter)) {
3379                         addr = ioremap_nocache(
3380                                         pci_resource_start(adapter->pdev, 0),
3381                                         pci_resource_len(adapter->pdev, 0));
3382                         if (addr == NULL)
3383                                 return -ENOMEM;
3384                         adapter->db = addr;
3385                 }
3386                 if (adapter->if_type == SLI_INTF_TYPE_3) {
3387                         if (lancer_roce_map_pci_bars(adapter))
3388                                 goto pci_map_err;
3389                 }
3390                 return 0;
3391         }
3392
3393         if (be_physfn(adapter)) {
3394                 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
3395                                 pci_resource_len(adapter->pdev, 2));
3396                 if (addr == NULL)
3397                         return -ENOMEM;
3398                 adapter->csr = addr;
3399         }
3400
3401         if (adapter->generation == BE_GEN2) {
3402                 db_reg = 4;
3403         } else {
3404                 if (be_physfn(adapter))
3405                         db_reg = 4;
3406                 else
3407                         db_reg = 0;
3408         }
3409         addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg),
3410                                 pci_resource_len(adapter->pdev, db_reg));
3411         if (addr == NULL)
3412                 goto pci_map_err;
3413         adapter->db = addr;
3414         if (adapter->sli_family == SKYHAWK_SLI_FAMILY) {
3415                 adapter->roce_db.size = 4096;
3416                 adapter->roce_db.io_addr =
3417                                 pci_resource_start(adapter->pdev, db_reg);
3418                 adapter->roce_db.total_size =
3419                                 pci_resource_len(adapter->pdev, db_reg);
3420         }
3421         return 0;
3422 pci_map_err:
3423         be_unmap_pci_bars(adapter);
3424         return -ENOMEM;
3425 }
3426
3427 static void be_ctrl_cleanup(struct be_adapter *adapter)
3428 {
3429         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3430
3431         be_unmap_pci_bars(adapter);
3432
3433         if (mem->va)
3434                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3435                                   mem->dma);
3436
3437         mem = &adapter->rx_filter;
3438         if (mem->va)
3439                 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3440                                   mem->dma);
3441         kfree(adapter->pmac_id);
3442 }
3443
3444 static int be_ctrl_init(struct be_adapter *adapter)
3445 {
3446         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3447         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3448         struct be_dma_mem *rx_filter = &adapter->rx_filter;
3449         int status;
3450
3451         status = be_map_pci_bars(adapter);
3452         if (status)
3453                 goto done;
3454
3455         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3456         mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3457                                                 mbox_mem_alloc->size,
3458                                                 &mbox_mem_alloc->dma,
3459                                                 GFP_KERNEL);
3460         if (!mbox_mem_alloc->va) {
3461                 status = -ENOMEM;
3462                 goto unmap_pci_bars;
3463         }
3464         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3465         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3466         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3467         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3468
3469         rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3470         rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3471                                         &rx_filter->dma, GFP_KERNEL);
3472         if (rx_filter->va == NULL) {
3473                 status = -ENOMEM;
3474                 goto free_mbox;
3475         }
3476         memset(rx_filter->va, 0, rx_filter->size);
3477
3478         /* primary mac needs 1 pmac entry */
3479         adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3480                                    sizeof(*adapter->pmac_id), GFP_KERNEL);
3481         if (!adapter->pmac_id)
3482                 return -ENOMEM;
3483
3484         mutex_init(&adapter->mbox_lock);
3485         spin_lock_init(&adapter->mcc_lock);
3486         spin_lock_init(&adapter->mcc_cq_lock);
3487
3488         init_completion(&adapter->flash_compl);
3489         pci_save_state(adapter->pdev);
3490         return 0;
3491
3492 free_mbox:
3493         dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3494                           mbox_mem_alloc->va, mbox_mem_alloc->dma);
3495
3496 unmap_pci_bars:
3497         be_unmap_pci_bars(adapter);
3498
3499 done:
3500         return status;
3501 }
3502
3503 static void be_stats_cleanup(struct be_adapter *adapter)
3504 {
3505         struct be_dma_mem *cmd = &adapter->stats_cmd;
3506
3507         if (cmd->va)
3508                 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3509                                   cmd->va, cmd->dma);
3510 }
3511
3512 static int be_stats_init(struct be_adapter *adapter)
3513 {
3514         struct be_dma_mem *cmd = &adapter->stats_cmd;
3515
3516         if (adapter->generation == BE_GEN2) {
3517                 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3518         } else {
3519                 if (lancer_chip(adapter))
3520                         cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3521                 else
3522                         cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3523         }
3524         cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3525                                      GFP_KERNEL);
3526         if (cmd->va == NULL)
3527                 return -1;
3528         memset(cmd->va, 0, cmd->size);
3529         return 0;
3530 }
3531
3532 static void __devexit be_remove(struct pci_dev *pdev)
3533 {
3534         struct be_adapter *adapter = pci_get_drvdata(pdev);
3535
3536         if (!adapter)
3537                 return;
3538
3539         be_roce_dev_remove(adapter);
3540
3541         cancel_delayed_work_sync(&adapter->func_recovery_work);
3542
3543         unregister_netdev(adapter->netdev);
3544
3545         be_clear(adapter);
3546
3547         /* tell fw we're done with firing cmds */
3548         be_cmd_fw_clean(adapter);
3549
3550         be_stats_cleanup(adapter);
3551
3552         be_ctrl_cleanup(adapter);
3553
3554         pci_set_drvdata(pdev, NULL);
3555         pci_release_regions(pdev);
3556         pci_disable_device(pdev);
3557
3558         free_netdev(adapter->netdev);
3559 }
3560
3561 bool be_is_wol_supported(struct be_adapter *adapter)
3562 {
3563         return ((adapter->wol_cap & BE_WOL_CAP) &&
3564                 !be_is_wol_excluded(adapter)) ? true : false;
3565 }
3566
3567 u32 be_get_fw_log_level(struct be_adapter *adapter)
3568 {
3569         struct be_dma_mem extfat_cmd;
3570         struct be_fat_conf_params *cfgs;
3571         int status;
3572         u32 level = 0;
3573         int j;
3574
3575         memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
3576         extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
3577         extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
3578                                              &extfat_cmd.dma);
3579
3580         if (!extfat_cmd.va) {
3581                 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
3582                         __func__);
3583                 goto err;
3584         }
3585
3586         status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
3587         if (!status) {
3588                 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
3589                                                 sizeof(struct be_cmd_resp_hdr));
3590                 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
3591                         if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
3592                                 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
3593                 }
3594         }
3595         pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
3596                             extfat_cmd.dma);
3597 err:
3598         return level;
3599 }
3600 static int be_get_initial_config(struct be_adapter *adapter)
3601 {
3602         int status;
3603         u32 level;
3604
3605         status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3606                         &adapter->function_mode, &adapter->function_caps);
3607         if (status)
3608                 return status;
3609
3610         if (adapter->function_mode & FLEX10_MODE)
3611                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3612         else
3613                 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3614
3615         if (be_physfn(adapter))
3616                 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3617         else
3618                 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3619
3620         status = be_cmd_get_cntl_attributes(adapter);
3621         if (status)
3622                 return status;
3623
3624         status = be_cmd_get_acpi_wol_cap(adapter);
3625         if (status) {
3626                 /* in case of a failure to get wol capabillities
3627                  * check the exclusion list to determine WOL capability */
3628                 if (!be_is_wol_excluded(adapter))
3629                         adapter->wol_cap |= BE_WOL_CAP;
3630         }
3631
3632         if (be_is_wol_supported(adapter))
3633                 adapter->wol = true;
3634
3635         /* Must be a power of 2 or else MODULO will BUG_ON */
3636         adapter->be_get_temp_freq = 64;
3637
3638         level = be_get_fw_log_level(adapter);
3639         adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
3640
3641         return 0;
3642 }
3643
3644 static int be_dev_type_check(struct be_adapter *adapter)
3645 {
3646         struct pci_dev *pdev = adapter->pdev;
3647         u32 sli_intf = 0, if_type;
3648
3649         switch (pdev->device) {
3650         case BE_DEVICE_ID1:
3651         case OC_DEVICE_ID1:
3652                 adapter->generation = BE_GEN2;
3653                 break;
3654         case BE_DEVICE_ID2:
3655         case OC_DEVICE_ID2:
3656                 adapter->generation = BE_GEN3;
3657                 break;
3658         case OC_DEVICE_ID3:
3659         case OC_DEVICE_ID4:
3660                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3661                 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3662                                                 SLI_INTF_IF_TYPE_SHIFT;
3663                 if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3664                                                 SLI_INTF_IF_TYPE_SHIFT;
3665                 if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) ||
3666                         !be_type_2_3(adapter)) {
3667                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3668                         return -EINVAL;
3669                 }
3670                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3671                                          SLI_INTF_FAMILY_SHIFT);
3672                 adapter->generation = BE_GEN3;
3673                 break;
3674         case OC_DEVICE_ID5:
3675                 pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3676                 if ((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) {
3677                         dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n");
3678                         return -EINVAL;
3679                 }
3680                 adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >>
3681                                          SLI_INTF_FAMILY_SHIFT);
3682                 adapter->generation = BE_GEN3;
3683                 break;
3684         default:
3685                 adapter->generation = 0;
3686         }
3687
3688         pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3689         adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3690         return 0;
3691 }
3692
3693 static int lancer_recover_func(struct be_adapter *adapter)
3694 {
3695         int status;
3696
3697         status = lancer_test_and_set_rdy_state(adapter);
3698         if (status)
3699                 goto err;
3700
3701         if (netif_running(adapter->netdev))
3702                 be_close(adapter->netdev);
3703
3704         be_clear(adapter);
3705
3706         adapter->hw_error = false;
3707         adapter->fw_timeout = false;
3708
3709         status = be_setup(adapter);
3710         if (status)
3711                 goto err;
3712
3713         if (netif_running(adapter->netdev)) {
3714                 status = be_open(adapter->netdev);
3715                 if (status)
3716                         goto err;
3717         }
3718
3719         dev_err(&adapter->pdev->dev,
3720                 "Adapter SLIPORT recovery succeeded\n");
3721         return 0;
3722 err:
3723         dev_err(&adapter->pdev->dev,
3724                 "Adapter SLIPORT recovery failed\n");
3725
3726         return status;
3727 }
3728
3729 static void be_func_recovery_task(struct work_struct *work)
3730 {
3731         struct be_adapter *adapter =
3732                 container_of(work, struct be_adapter,  func_recovery_work.work);
3733         int status;
3734
3735         be_detect_error(adapter);
3736
3737         if (adapter->hw_error && lancer_chip(adapter)) {
3738
3739                 if (adapter->eeh_error)
3740                         goto out;
3741
3742                 rtnl_lock();
3743                 netif_device_detach(adapter->netdev);
3744                 rtnl_unlock();
3745
3746                 status = lancer_recover_func(adapter);
3747
3748                 if (!status)
3749                         netif_device_attach(adapter->netdev);
3750         }
3751
3752 out:
3753         schedule_delayed_work(&adapter->func_recovery_work,
3754                               msecs_to_jiffies(1000));
3755 }
3756
3757 static void be_worker(struct work_struct *work)
3758 {
3759         struct be_adapter *adapter =
3760                 container_of(work, struct be_adapter, work.work);
3761         struct be_rx_obj *rxo;
3762         struct be_eq_obj *eqo;
3763         int i;
3764
3765         /* when interrupts are not yet enabled, just reap any pending
3766         * mcc completions */
3767         if (!netif_running(adapter->netdev)) {
3768                 local_bh_disable();
3769                 be_process_mcc(adapter);
3770                 local_bh_enable();
3771                 goto reschedule;
3772         }
3773
3774         if (!adapter->stats_cmd_sent) {
3775                 if (lancer_chip(adapter))
3776                         lancer_cmd_get_pport_stats(adapter,
3777                                                 &adapter->stats_cmd);
3778                 else
3779                         be_cmd_get_stats(adapter, &adapter->stats_cmd);
3780         }
3781
3782         if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
3783                 be_cmd_get_die_temperature(adapter);
3784
3785         for_all_rx_queues(adapter, rxo, i) {
3786                 if (rxo->rx_post_starved) {
3787                         rxo->rx_post_starved = false;
3788                         be_post_rx_frags(rxo, GFP_KERNEL);
3789                 }
3790         }
3791
3792         for_all_evt_queues(adapter, eqo, i)
3793                 be_eqd_update(adapter, eqo);
3794
3795 reschedule:
3796         adapter->work_counter++;
3797         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3798 }
3799
3800 static bool be_reset_required(struct be_adapter *adapter)
3801 {
3802         return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
3803 }
3804
3805 static int __devinit be_probe(struct pci_dev *pdev,
3806                         const struct pci_device_id *pdev_id)
3807 {
3808         int status = 0;
3809         struct be_adapter *adapter;
3810         struct net_device *netdev;
3811         char port_name;
3812
3813         status = pci_enable_device(pdev);
3814         if (status)
3815                 goto do_none;
3816
3817         status = pci_request_regions(pdev, DRV_NAME);
3818         if (status)
3819                 goto disable_dev;
3820         pci_set_master(pdev);
3821
3822         netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
3823         if (netdev == NULL) {
3824                 status = -ENOMEM;
3825                 goto rel_reg;
3826         }
3827         adapter = netdev_priv(netdev);
3828         adapter->pdev = pdev;
3829         pci_set_drvdata(pdev, adapter);
3830
3831         status = be_dev_type_check(adapter);
3832         if (status)
3833                 goto free_netdev;
3834
3835         adapter->netdev = netdev;
3836         SET_NETDEV_DEV(netdev, &pdev->dev);
3837
3838         status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
3839         if (!status) {
3840                 netdev->features |= NETIF_F_HIGHDMA;
3841         } else {
3842                 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
3843                 if (status) {
3844                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
3845                         goto free_netdev;
3846                 }
3847         }
3848
3849         status = be_ctrl_init(adapter);
3850         if (status)
3851                 goto free_netdev;
3852
3853         /* sync up with fw's ready state */
3854         if (be_physfn(adapter)) {
3855                 status = be_fw_wait_ready(adapter);
3856                 if (status)
3857                         goto ctrl_clean;
3858         }
3859
3860         /* tell fw we're ready to fire cmds */
3861         status = be_cmd_fw_init(adapter);
3862         if (status)
3863                 goto ctrl_clean;
3864
3865         if (be_reset_required(adapter)) {
3866                 status = be_cmd_reset_function(adapter);
3867                 if (status)
3868                         goto ctrl_clean;
3869         }
3870
3871         /* The INTR bit may be set in the card when probed by a kdump kernel
3872          * after a crash.
3873          */
3874         if (!lancer_chip(adapter))
3875                 be_intr_set(adapter, false);
3876
3877         status = be_stats_init(adapter);
3878         if (status)
3879                 goto ctrl_clean;
3880
3881         status = be_get_initial_config(adapter);
3882         if (status)
3883                 goto stats_clean;
3884
3885         INIT_DELAYED_WORK(&adapter->work, be_worker);
3886         INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
3887         adapter->rx_fc = adapter->tx_fc = true;
3888
3889         status = be_setup(adapter);
3890         if (status)
3891                 goto msix_disable;
3892
3893         be_netdev_init(netdev);
3894         status = register_netdev(netdev);
3895         if (status != 0)
3896                 goto unsetup;
3897
3898         be_roce_dev_add(adapter);
3899
3900         schedule_delayed_work(&adapter->func_recovery_work,
3901                               msecs_to_jiffies(1000));
3902
3903         be_cmd_query_port_name(adapter, &port_name);
3904
3905         dev_info(&pdev->dev, "%s: %s port %c\n", netdev->name, nic_name(pdev),
3906                  port_name);
3907
3908         return 0;
3909
3910 unsetup:
3911         be_clear(adapter);
3912 msix_disable:
3913         be_msix_disable(adapter);
3914 stats_clean:
3915         be_stats_cleanup(adapter);
3916 ctrl_clean:
3917         be_ctrl_cleanup(adapter);
3918 free_netdev:
3919         free_netdev(netdev);
3920         pci_set_drvdata(pdev, NULL);
3921 rel_reg:
3922         pci_release_regions(pdev);
3923 disable_dev:
3924         pci_disable_device(pdev);
3925 do_none:
3926         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
3927         return status;
3928 }
3929
3930 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
3931 {
3932         struct be_adapter *adapter = pci_get_drvdata(pdev);
3933         struct net_device *netdev =  adapter->netdev;
3934
3935         if (adapter->wol)
3936                 be_setup_wol(adapter, true);
3937
3938         cancel_delayed_work_sync(&adapter->func_recovery_work);
3939
3940         netif_device_detach(netdev);
3941         if (netif_running(netdev)) {
3942                 rtnl_lock();
3943                 be_close(netdev);
3944                 rtnl_unlock();
3945         }
3946         be_clear(adapter);
3947
3948         pci_save_state(pdev);
3949         pci_disable_device(pdev);
3950         pci_set_power_state(pdev, pci_choose_state(pdev, state));
3951         return 0;
3952 }
3953
3954 static int be_resume(struct pci_dev *pdev)
3955 {
3956         int status = 0;
3957         struct be_adapter *adapter = pci_get_drvdata(pdev);
3958         struct net_device *netdev =  adapter->netdev;
3959
3960         netif_device_detach(netdev);
3961
3962         status = pci_enable_device(pdev);
3963         if (status)
3964                 return status;
3965
3966         pci_set_power_state(pdev, 0);
3967         pci_restore_state(pdev);
3968
3969         /* tell fw we're ready to fire cmds */
3970         status = be_cmd_fw_init(adapter);
3971         if (status)
3972                 return status;
3973
3974         be_setup(adapter);
3975         if (netif_running(netdev)) {
3976                 rtnl_lock();
3977                 be_open(netdev);
3978                 rtnl_unlock();
3979         }
3980
3981         schedule_delayed_work(&adapter->func_recovery_work,
3982                               msecs_to_jiffies(1000));
3983         netif_device_attach(netdev);
3984
3985         if (adapter->wol)
3986                 be_setup_wol(adapter, false);
3987
3988         return 0;
3989 }
3990
3991 /*
3992  * An FLR will stop BE from DMAing any data.
3993  */
3994 static void be_shutdown(struct pci_dev *pdev)
3995 {
3996         struct be_adapter *adapter = pci_get_drvdata(pdev);
3997
3998         if (!adapter)
3999                 return;
4000
4001         cancel_delayed_work_sync(&adapter->work);
4002         cancel_delayed_work_sync(&adapter->func_recovery_work);
4003
4004         netif_device_detach(adapter->netdev);
4005
4006         if (adapter->wol)
4007                 be_setup_wol(adapter, true);
4008
4009         be_cmd_reset_function(adapter);
4010
4011         pci_disable_device(pdev);
4012 }
4013
4014 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4015                                 pci_channel_state_t state)
4016 {
4017         struct be_adapter *adapter = pci_get_drvdata(pdev);
4018         struct net_device *netdev =  adapter->netdev;
4019
4020         dev_err(&adapter->pdev->dev, "EEH error detected\n");
4021
4022         adapter->eeh_error = true;
4023
4024         cancel_delayed_work_sync(&adapter->func_recovery_work);
4025
4026         rtnl_lock();
4027         netif_device_detach(netdev);
4028         rtnl_unlock();
4029
4030         if (netif_running(netdev)) {
4031                 rtnl_lock();
4032                 be_close(netdev);
4033                 rtnl_unlock();
4034         }
4035         be_clear(adapter);
4036
4037         if (state == pci_channel_io_perm_failure)
4038                 return PCI_ERS_RESULT_DISCONNECT;
4039
4040         pci_disable_device(pdev);
4041
4042         /* The error could cause the FW to trigger a flash debug dump.
4043          * Resetting the card while flash dump is in progress
4044          * can cause it not to recover; wait for it to finish
4045          */
4046         ssleep(30);
4047         return PCI_ERS_RESULT_NEED_RESET;
4048 }
4049
4050 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4051 {
4052         struct be_adapter *adapter = pci_get_drvdata(pdev);
4053         int status;
4054
4055         dev_info(&adapter->pdev->dev, "EEH reset\n");
4056         be_clear_all_error(adapter);
4057
4058         status = pci_enable_device(pdev);
4059         if (status)
4060                 return PCI_ERS_RESULT_DISCONNECT;
4061
4062         pci_set_master(pdev);
4063         pci_set_power_state(pdev, 0);
4064         pci_restore_state(pdev);
4065
4066         /* Check if card is ok and fw is ready */
4067         status = be_fw_wait_ready(adapter);
4068         if (status)
4069                 return PCI_ERS_RESULT_DISCONNECT;
4070
4071         return PCI_ERS_RESULT_RECOVERED;
4072 }
4073
4074 static void be_eeh_resume(struct pci_dev *pdev)
4075 {
4076         int status = 0;
4077         struct be_adapter *adapter = pci_get_drvdata(pdev);
4078         struct net_device *netdev =  adapter->netdev;
4079
4080         dev_info(&adapter->pdev->dev, "EEH resume\n");
4081
4082         pci_save_state(pdev);
4083
4084         /* tell fw we're ready to fire cmds */
4085         status = be_cmd_fw_init(adapter);
4086         if (status)
4087                 goto err;
4088
4089         status = be_cmd_reset_function(adapter);
4090         if (status)
4091                 goto err;
4092
4093         status = be_setup(adapter);
4094         if (status)
4095                 goto err;
4096
4097         if (netif_running(netdev)) {
4098                 status = be_open(netdev);
4099                 if (status)
4100                         goto err;
4101         }
4102
4103         schedule_delayed_work(&adapter->func_recovery_work,
4104                               msecs_to_jiffies(1000));
4105         netif_device_attach(netdev);
4106         return;
4107 err:
4108         dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4109 }
4110
4111 static struct pci_error_handlers be_eeh_handlers = {
4112         .error_detected = be_eeh_err_detected,
4113         .slot_reset = be_eeh_reset,
4114         .resume = be_eeh_resume,
4115 };
4116
4117 static struct pci_driver be_driver = {
4118         .name = DRV_NAME,
4119         .id_table = be_dev_ids,
4120         .probe = be_probe,
4121         .remove = be_remove,
4122         .suspend = be_suspend,
4123         .resume = be_resume,
4124         .shutdown = be_shutdown,
4125         .err_handler = &be_eeh_handlers
4126 };
4127
4128 static int __init be_init_module(void)
4129 {
4130         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4131             rx_frag_size != 2048) {
4132                 printk(KERN_WARNING DRV_NAME
4133                         " : Module param rx_frag_size must be 2048/4096/8192."
4134                         " Using 2048\n");
4135                 rx_frag_size = 2048;
4136         }
4137
4138         return pci_register_driver(&be_driver);
4139 }
4140 module_init(be_init_module);
4141
4142 static void __exit be_exit_module(void)
4143 {
4144         pci_unregister_driver(&be_driver);
4145 }
4146 module_exit(be_exit_module);