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

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