lib/librte_eal/linuxapp/kni/ethtool/ixgbe/ixgbe_main.c

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2012 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25
  26 *******************************************************************************/
  27
  28 /******************************************************************************
  29  Copyright (c)2006 - 2007 Myricom, Inc. for some LRO specific code
  30 ******************************************************************************/
  31 #include <linux/types.h>
  32 #include <linux/module.h>
  33 #include <linux/pci.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/vmalloc.h>
  36 #include <linux/highmem.h>
  37 #include <linux/string.h>
  38 #include <linux/in.h>
  39 #include <linux/ip.h>
  40 #include <linux/tcp.h>
  41 #ifdef HAVE_SCTP
  42 #include <linux/sctp.h>
  43 #endif
  44 #include <linux/pkt_sched.h>
  45 #include <linux/ipv6.h>
  46 #ifdef NETIF_F_TSO
  47 #include <net/checksum.h>
  48 #ifdef NETIF_F_TSO6
  49 #include <net/ip6_checksum.h>
  50 #endif
  51 #endif
  52 #ifdef SIOCETHTOOL
  53 #include <linux/ethtool.h>
  54 #endif
  55
  56 #include "ixgbe.h"
  57
  58 #undef CONFIG_DCA
  59 #undef CONFIG_DCA_MODULE
  60
  61 char ixgbe_driver_name[] = "ixgbe";
  62 #define DRV_HW_PERF
  63
  64 #ifndef CONFIG_IXGBE_NAPI
  65 #define DRIVERNAPI
  66 #else
  67 #define DRIVERNAPI "-NAPI"
  68 #endif
  69
  70 #define FPGA
  71
  72 #define VMDQ_TAG
  73
  74 #define MAJ 3
  75 #define MIN 9
  76 #define BUILD 17
  77 #define DRV_VERSION     __stringify(MAJ) "." __stringify(MIN) "." \
  78                         __stringify(BUILD) DRIVERNAPI DRV_HW_PERF FPGA VMDQ_TAG
  79 const char ixgbe_driver_version[] = DRV_VERSION;
  80
  81 /* ixgbe_pci_tbl - PCI Device ID Table
  82  *
  83  * Wildcard entries (PCI_ANY_ID) should come last
  84  * Last entry must be all 0s
  85  *
  86  * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
  87  *   Class, Class Mask, private data (not used) }
  88  */
  89 DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = {
  90         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598)},
  91         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT)},
  92         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT)},
  93         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT)},
  94         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2)},
  95         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4)},
  96         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT)},
  97         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT)},
  98         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM)},
  99         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR)},
 100         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM)},
 101         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX)},
 102         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4)},
 103         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM)},
 104         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR)},
 105         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP)},
 106         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM)},
 107         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ)},
 108         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4)},
 109         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE)},
 110         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE)},
 111         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM)},
 112         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE)},
 113         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T)},
 114         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2)},
 115         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS)},
 116         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP)},
 117         {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_QSFP_SF_QP)},
 118         /* required last entry */
 119         {0, }
 120 };
 121
 122 #if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
 123 static int ixgbe_notify_dca(struct notifier_block *, unsigned long event,
 124                             void *p);
 125 static struct notifier_block dca_notifier = {
 126         .notifier_call  = ixgbe_notify_dca,
 127         .next           = NULL,
 128         .priority       = 0
 129 };
 130
 131 #endif
 132 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
 133 MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver");
 134 MODULE_LICENSE("GPL");
 135 MODULE_VERSION(DRV_VERSION);
 136
 137 #define DEFAULT_DEBUG_LEVEL_SHIFT 3
 138
 139
 140 static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter)
 141 {
 142         u32 ctrl_ext;
 143
 144         /* Let firmware take over control of h/w */
 145         ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
 146         IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
 147                         ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD);
 148 }
 149
 150 #ifdef NO_VNIC
 151 static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter)
 152 {
 153         u32 ctrl_ext;
 154
 155         /* Let firmware know the driver has taken over */
 156         ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT);
 157         IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT,
 158                         ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD);
 159 }
 160 #endif
 161
 162
 163 static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter)
 164 {
 165         struct ixgbe_hw *hw = &adapter->hw;
 166         struct ixgbe_hw_stats *hwstats = &adapter->stats;
 167         int i;
 168         u32 data;
 169
 170         if ((hw->fc.current_mode != ixgbe_fc_full) &&
 171             (hw->fc.current_mode != ixgbe_fc_rx_pause))
 172                 return;
 173
 174         switch (hw->mac.type) {
 175         case ixgbe_mac_82598EB:
 176                 data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
 177                 break;
 178         default:
 179                 data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
 180         }
 181         hwstats->lxoffrxc += data;
 182
 183         /* refill credits (no tx hang) if we received xoff */
 184         if (!data)
 185                 return;
 186
 187         for (i = 0; i < adapter->num_tx_queues; i++)
 188                 clear_bit(__IXGBE_HANG_CHECK_ARMED,
 189                           &adapter->tx_ring[i]->state);
 190 }
 191
 192 static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter)
 193 {
 194         struct ixgbe_hw *hw = &adapter->hw;
 195         struct ixgbe_hw_stats *hwstats = &adapter->stats;
 196         u32 xoff[8] = {0};
 197         int i;
 198         bool pfc_en = adapter->dcb_cfg.pfc_mode_enable;
 199
 200 #ifdef HAVE_DCBNL_IEEE
 201         if (adapter->ixgbe_ieee_pfc)
 202                 pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en);
 203
 204 #endif
 205         if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) {
 206                 ixgbe_update_xoff_rx_lfc(adapter);
 207                 return;
 208         }
 209
 210         /* update stats for each tc, only valid with PFC enabled */
 211         for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) {
 212                 switch (hw->mac.type) {
 213                 case ixgbe_mac_82598EB:
 214                         xoff[i] = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
 215                         break;
 216                 default:
 217                         xoff[i] = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
 218                 }
 219                 hwstats->pxoffrxc[i] += xoff[i];
 220         }
 221
 222         /* disarm tx queues that have received xoff frames */
 223         for (i = 0; i < adapter->num_tx_queues; i++) {
 224                 struct ixgbe_ring *tx_ring = adapter->tx_ring[i];
 225                 u8 tc = tx_ring->dcb_tc;
 226
 227                 if ((tc <= 7) && (xoff[tc]))
 228                         clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state);
 229         }
 230 }
 231
 232
 233
 234
 235 #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2
 236
 237
 238
 239
 240 #ifdef HAVE_8021P_SUPPORT
 241 /**
 242  * ixgbe_vlan_stripping_disable - helper to disable vlan tag stripping
 243  * @adapter: driver data
 244  */
 245 void ixgbe_vlan_stripping_disable(struct ixgbe_adapter *adapter)
 246 {
 247         struct ixgbe_hw *hw = &adapter->hw;
 248         u32 vlnctrl;
 249         int i;
 250
 251         /* leave vlan tag stripping enabled for DCB */
 252         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
 253                 return;
 254
 255         switch (hw->mac.type) {
 256         case ixgbe_mac_82598EB:
 257                 vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
 258                 vlnctrl &= ~IXGBE_VLNCTRL_VME;
 259                 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
 260                 break;
 261         case ixgbe_mac_82599EB:
 262         case ixgbe_mac_X540:
 263                 for (i = 0; i < adapter->num_rx_queues; i++) {
 264                         u8 reg_idx = adapter->rx_ring[i]->reg_idx;
 265                         vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx));
 266                         vlnctrl &= ~IXGBE_RXDCTL_VME;
 267                         IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), vlnctrl);
 268                 }
 269                 break;
 270         default:
 271                 break;
 272         }
 273 }
 274
 275 #endif
 276 /**
 277  * ixgbe_vlan_stripping_enable - helper to enable vlan tag stripping
 278  * @adapter: driver data
 279  */
 280 void ixgbe_vlan_stripping_enable(struct ixgbe_adapter *adapter)
 281 {
 282         struct ixgbe_hw *hw = &adapter->hw;
 283         u32 vlnctrl;
 284         int i;
 285
 286         switch (hw->mac.type) {
 287         case ixgbe_mac_82598EB:
 288                 vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
 289                 vlnctrl |= IXGBE_VLNCTRL_VME;
 290                 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
 291                 break;
 292         case ixgbe_mac_82599EB:
 293         case ixgbe_mac_X540:
 294                 for (i = 0; i < adapter->num_rx_queues; i++) {
 295                         u8 reg_idx = adapter->rx_ring[i]->reg_idx;
 296                         vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx));
 297                         vlnctrl |= IXGBE_RXDCTL_VME;
 298                         IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), vlnctrl);
 299                 }
 300                 break;
 301         default:
 302                 break;
 303         }
 304 }
 305
 306 #ifdef HAVE_VLAN_RX_REGISTER
 307 void ixgbe_vlan_mode(struct net_device *netdev, struct vlan_group *grp)
 308 #else
 309 void ixgbe_vlan_mode(struct net_device *netdev, u32 features)
 310 #endif
 311 {
 312         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 313 #ifdef HAVE_8021P_SUPPORT
 314         bool enable;
 315 #endif
 316 #ifdef HAVE_VLAN_RX_REGISTER
 317
 318         //if (!test_bit(__IXGBE_DOWN, &adapter->state))
 319         //      ixgbe_irq_disable(adapter);
 320
 321         adapter->vlgrp = grp;
 322
 323         //if (!test_bit(__IXGBE_DOWN, &adapter->state))
 324         //      ixgbe_irq_enable(adapter, true, true);
 325 #endif
 326 #ifdef HAVE_8021P_SUPPORT
 327 #ifdef HAVE_VLAN_RX_REGISTER
 328         enable = (grp || (adapter->flags & IXGBE_FLAG_DCB_ENABLED));
 329 #else
 330         enable = !!(features & NETIF_F_HW_VLAN_RX);
 331 #endif
 332         if (enable)
 333                 /* enable VLAN tag insert/strip */
 334                 ixgbe_vlan_stripping_enable(adapter);
 335         else
 336                 /* disable VLAN tag insert/strip */
 337                 ixgbe_vlan_stripping_disable(adapter);
 338
 339 #endif
 340 }
 341
 342 static u8 *ixgbe_addr_list_itr(struct ixgbe_hw *hw, u8 **mc_addr_ptr, u32 *vmdq)
 343 {
 344 #ifdef NETDEV_HW_ADDR_T_MULTICAST
 345         struct netdev_hw_addr *mc_ptr;
 346 #else
 347         struct dev_mc_list *mc_ptr;
 348 #endif
 349         struct ixgbe_adapter *adapter = hw->back;
 350         u8 *addr = *mc_addr_ptr;
 351
 352         *vmdq = adapter->num_vfs;
 353
 354 #ifdef NETDEV_HW_ADDR_T_MULTICAST
 355         mc_ptr = container_of(addr, struct netdev_hw_addr, addr[0]);
 356         if (mc_ptr->list.next) {
 357                 struct netdev_hw_addr *ha;
 358
 359                 ha = list_entry(mc_ptr->list.next, struct netdev_hw_addr, list);
 360                 *mc_addr_ptr = ha->addr;
 361         }
 362 #else
 363         mc_ptr = container_of(addr, struct dev_mc_list, dmi_addr[0]);
 364         if (mc_ptr->next)
 365                 *mc_addr_ptr = mc_ptr->next->dmi_addr;
 366 #endif
 367         else
 368                 *mc_addr_ptr = NULL;
 369
 370         return addr;
 371 }
 372
 373 /**
 374  * ixgbe_write_mc_addr_list - write multicast addresses to MTA
 375  * @netdev: network interface device structure
 376  *
 377  * Writes multicast address list to the MTA hash table.
 378  * Returns: -ENOMEM on failure
 379  *                0 on no addresses written
 380  *                X on writing X addresses to MTA
 381  **/
 382 int ixgbe_write_mc_addr_list(struct net_device *netdev)
 383 {
 384         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 385         struct ixgbe_hw *hw = &adapter->hw;
 386 #ifdef NETDEV_HW_ADDR_T_MULTICAST
 387         struct netdev_hw_addr *ha;
 388 #endif
 389         u8  *addr_list = NULL;
 390         int addr_count = 0;
 391
 392         if (!hw->mac.ops.update_mc_addr_list)
 393                 return -ENOMEM;
 394
 395         if (!netif_running(netdev))
 396                 return 0;
 397
 398
 399         hw->mac.ops.update_mc_addr_list(hw, NULL, 0,
 400                                         ixgbe_addr_list_itr, true);
 401
 402         if (!netdev_mc_empty(netdev)) {
 403 #ifdef NETDEV_HW_ADDR_T_MULTICAST
 404                 ha = list_first_entry(&netdev->mc.list,
 405                                       struct netdev_hw_addr, list);
 406                 addr_list = ha->addr;
 407 #else
 408                 addr_list = netdev->mc_list->dmi_addr;
 409 #endif
 410                 addr_count = netdev_mc_count(netdev);
 411
 412                 hw->mac.ops.update_mc_addr_list(hw, addr_list, addr_count,
 413                                                 ixgbe_addr_list_itr, false);
 414         }
 415
 416 #ifdef CONFIG_PCI_IOV
 417         //ixgbe_restore_vf_multicasts(adapter);
 418 #endif
 419         return addr_count;
 420 }
 421
 422
 423 void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter)
 424 {
 425         struct ixgbe_hw *hw = &adapter->hw;
 426         int i;
 427         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 428                 if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE) {
 429                         hw->mac.ops.set_rar(hw, i, adapter->mac_table[i].addr,
 430                                                 adapter->mac_table[i].queue,
 431                                                 IXGBE_RAH_AV);
 432                 } else {
 433                         hw->mac.ops.clear_rar(hw, i);
 434                 }
 435         }
 436 }
 437
 438 void ixgbe_sync_mac_table(struct ixgbe_adapter *adapter)
 439 {
 440         struct ixgbe_hw *hw = &adapter->hw;
 441         int i;
 442         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 443                 if (adapter->mac_table[i].state & IXGBE_MAC_STATE_MODIFIED) {
 444                         if (adapter->mac_table[i].state &
 445                                         IXGBE_MAC_STATE_IN_USE) {
 446                                 hw->mac.ops.set_rar(hw, i,
 447                                                 adapter->mac_table[i].addr,
 448                                                 adapter->mac_table[i].queue,
 449                                                 IXGBE_RAH_AV);
 450                         } else {
 451                                 hw->mac.ops.clear_rar(hw, i);
 452                         }
 453                         adapter->mac_table[i].state &=
 454                                 ~(IXGBE_MAC_STATE_MODIFIED);
 455                 }
 456         }
 457 }
 458
 459 int ixgbe_available_rars(struct ixgbe_adapter *adapter)
 460 {
 461         struct ixgbe_hw *hw = &adapter->hw;
 462         int i, count = 0;
 463
 464         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 465                 if (adapter->mac_table[i].state == 0)
 466                         count++;
 467         }
 468         return count;
 469 }
 470
 471 int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, u8 *addr, u16 queue)
 472 {
 473         struct ixgbe_hw *hw = &adapter->hw;
 474         int i;
 475
 476         if (is_zero_ether_addr(addr))
 477                 return 0;
 478
 479         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 480                 if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE)
 481                         continue;
 482                 adapter->mac_table[i].state |= (IXGBE_MAC_STATE_MODIFIED |
 483                                                 IXGBE_MAC_STATE_IN_USE);
 484                 memcpy(adapter->mac_table[i].addr, addr, ETH_ALEN);
 485                 adapter->mac_table[i].queue = queue;
 486                 ixgbe_sync_mac_table(adapter);
 487                 return i;
 488         }
 489         return -ENOMEM;
 490 }
 491
 492 void ixgbe_flush_sw_mac_table(struct ixgbe_adapter *adapter)
 493 {
 494         int i;
 495         struct ixgbe_hw *hw = &adapter->hw;
 496
 497         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 498                 adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED;
 499                 adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE;
 500                 memset(adapter->mac_table[i].addr, 0, ETH_ALEN);
 501                 adapter->mac_table[i].queue = 0;
 502         }
 503         ixgbe_sync_mac_table(adapter);
 504 }
 505
 506 void ixgbe_del_mac_filter_by_index(struct ixgbe_adapter *adapter, int index)
 507 {
 508         adapter->mac_table[index].state |= IXGBE_MAC_STATE_MODIFIED;
 509         adapter->mac_table[index].state &= ~IXGBE_MAC_STATE_IN_USE;
 510         memset(adapter->mac_table[index].addr, 0, ETH_ALEN);
 511         adapter->mac_table[index].queue = 0;
 512         ixgbe_sync_mac_table(adapter);
 513 }
 514
 515 int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter, u8* addr, u16 queue)
 516 {
 517         /* search table for addr, if found, set to 0 and sync */
 518         int i;
 519         struct ixgbe_hw *hw = &adapter->hw;
 520
 521         if (is_zero_ether_addr(addr))
 522                 return 0;
 523         for (i = 0; i < hw->mac.num_rar_entries; i++) {
 524                 if (ether_addr_equal(addr, adapter->mac_table[i].addr) &&
 525                     adapter->mac_table[i].queue == queue) {
 526                         adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED;
 527                         adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE;
 528                         memset(adapter->mac_table[i].addr, 0, ETH_ALEN);
 529                         adapter->mac_table[i].queue = 0;
 530                         ixgbe_sync_mac_table(adapter);
 531                         return 0;
 532                 }
 533         }
 534         return -ENOMEM;
 535 }
 536 #ifdef HAVE_SET_RX_MODE
 537 /**
 538  * ixgbe_write_uc_addr_list - write unicast addresses to RAR table
 539  * @netdev: network interface device structure
 540  *
 541  * Writes unicast address list to the RAR table.
 542  * Returns: -ENOMEM on failure/insufficient address space
 543  *                0 on no addresses written
 544  *                X on writing X addresses to the RAR table
 545  **/
 546 int ixgbe_write_uc_addr_list(struct ixgbe_adapter *adapter,
 547                              struct net_device *netdev, unsigned int vfn)
 548 {
 549         int count = 0;
 550
 551         /* return ENOMEM indicating insufficient memory for addresses */
 552         if (netdev_uc_count(netdev) > ixgbe_available_rars(adapter))
 553                 return -ENOMEM;
 554
 555         if (!netdev_uc_empty(netdev)) {
 556 #ifdef NETDEV_HW_ADDR_T_UNICAST
 557                 struct netdev_hw_addr *ha;
 558 #else
 559                 struct dev_mc_list *ha;
 560 #endif
 561                 netdev_for_each_uc_addr(ha, netdev) {
 562 #ifdef NETDEV_HW_ADDR_T_UNICAST
 563                         ixgbe_del_mac_filter(adapter, ha->addr, (u16)vfn);
 564                         ixgbe_add_mac_filter(adapter, ha->addr, (u16)vfn);
 565 #else
 566                         ixgbe_del_mac_filter(adapter, ha->da_addr, (u16)vfn);
 567                         ixgbe_add_mac_filter(adapter, ha->da_addr, (u16)vfn);
 568 #endif
 569                         count++;
 570                 }
 571         }
 572         return count;
 573 }
 574
 575 #endif
 576 /**
 577  * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set
 578  * @netdev: network interface device structure
 579  *
 580  * The set_rx_method entry point is called whenever the unicast/multicast
 581  * address list or the network interface flags are updated.  This routine is
 582  * responsible for configuring the hardware for proper unicast, multicast and
 583  * promiscuous mode.
 584  **/
 585 void ixgbe_set_rx_mode(struct net_device *netdev)
 586 {
 587         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 588         struct ixgbe_hw *hw = &adapter->hw;
 589         u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE;
 590         u32 vlnctrl;
 591         int count;
 592
 593         /* Check for Promiscuous and All Multicast modes */
 594         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
 595         vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
 596
 597         /* set all bits that we expect to always be set */
 598         fctrl |= IXGBE_FCTRL_BAM;
 599         fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */
 600         fctrl |= IXGBE_FCTRL_PMCF;
 601
 602         /* clear the bits we are changing the status of */
 603         fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
 604         vlnctrl  &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN);
 605
 606         if (netdev->flags & IFF_PROMISC) {
 607                 hw->addr_ctrl.user_set_promisc = true;
 608                 fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
 609                 vmolr |= IXGBE_VMOLR_MPE;
 610         } else {
 611                 if (netdev->flags & IFF_ALLMULTI) {
 612                         fctrl |= IXGBE_FCTRL_MPE;
 613                         vmolr |= IXGBE_VMOLR_MPE;
 614                 } else {
 615                         /*
 616                          * Write addresses to the MTA, if the attempt fails
 617                          * then we should just turn on promiscuous mode so
 618                          * that we can at least receive multicast traffic
 619                          */
 620                         count = ixgbe_write_mc_addr_list(netdev);
 621                         if (count < 0) {
 622                                 fctrl |= IXGBE_FCTRL_MPE;
 623                                 vmolr |= IXGBE_VMOLR_MPE;
 624                         } else if (count) {
 625                                 vmolr |= IXGBE_VMOLR_ROMPE;
 626                         }
 627                 }
 628 #ifdef NETIF_F_HW_VLAN_TX
 629                 /* enable hardware vlan filtering */
 630                 vlnctrl |= IXGBE_VLNCTRL_VFE;
 631 #endif
 632                 hw->addr_ctrl.user_set_promisc = false;
 633 #ifdef HAVE_SET_RX_MODE
 634                 /*
 635                  * Write addresses to available RAR registers, if there is not
 636                  * sufficient space to store all the addresses then enable
 637                  * unicast promiscuous mode
 638                  */
 639                 count = ixgbe_write_uc_addr_list(adapter, netdev,
 640                                                  adapter->num_vfs);
 641                 if (count < 0) {
 642                         fctrl |= IXGBE_FCTRL_UPE;
 643                         vmolr |= IXGBE_VMOLR_ROPE;
 644                 }
 645 #endif
 646         }
 647
 648         if (hw->mac.type != ixgbe_mac_82598EB) {
 649                 vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) &
 650                          ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
 651                            IXGBE_VMOLR_ROPE);
 652                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr);
 653         }
 654
 655         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
 656         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
 657 }
 658
 659
 660
 661
 662
 663
 664
 665
 666 /* Additional bittime to account for IXGBE framing */
 667 #define IXGBE_ETH_FRAMING 20
 668
 669 /*
 670  * ixgbe_hpbthresh - calculate high water mark for flow control
 671  *
 672  * @adapter: board private structure to calculate for
 673  * @pb - packet buffer to calculate
 674  */
 675 static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb)
 676 {
 677         struct ixgbe_hw *hw = &adapter->hw;
 678         struct net_device *dev = adapter->netdev;
 679         int link, tc, kb, marker;
 680         u32 dv_id, rx_pba;
 681
 682         /* Calculate max LAN frame size */
 683         tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING;
 684
 685 #ifdef IXGBE_FCOE
 686         /* FCoE traffic class uses FCOE jumbo frames */
 687         if (dev->features & NETIF_F_FCOE_MTU) {
 688                 int fcoe_pb = 0;
 689
 690                 fcoe_pb = netdev_get_prio_tc_map(dev, adapter->fcoe.up);
 691
 692                 if (fcoe_pb == pb && tc < IXGBE_FCOE_JUMBO_FRAME_SIZE)
 693                         tc = IXGBE_FCOE_JUMBO_FRAME_SIZE;
 694         }
 695 #endif
 696
 697         /* Calculate delay value for device */
 698         switch (hw->mac.type) {
 699         case ixgbe_mac_X540:
 700                 dv_id = IXGBE_DV_X540(link, tc);
 701                 break;
 702         default:
 703                 dv_id = IXGBE_DV(link, tc);
 704                 break;
 705         }
 706
 707         /* Loopback switch introduces additional latency */
 708         if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 709                 dv_id += IXGBE_B2BT(tc);
 710
 711         /* Delay value is calculated in bit times convert to KB */
 712         kb = IXGBE_BT2KB(dv_id);
 713         rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10;
 714
 715         marker = rx_pba - kb;
 716
 717         /* It is possible that the packet buffer is not large enough
 718          * to provide required headroom. In this case throw an error
 719          * to user and a do the best we can.
 720          */
 721         if (marker < 0) {
 722                 e_warn(drv, "Packet Buffer(%i) can not provide enough"
 723                             "headroom to suppport flow control."
 724                             "Decrease MTU or number of traffic classes\n", pb);
 725                 marker = tc + 1;
 726         }
 727
 728         return marker;
 729 }
 730
 731 /*
 732  * ixgbe_lpbthresh - calculate low water mark for for flow control
 733  *
 734  * @adapter: board private structure to calculate for
 735  * @pb - packet buffer to calculate
 736  */
 737 static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter, int pb)
 738 {
 739         struct ixgbe_hw *hw = &adapter->hw;
 740         struct net_device *dev = adapter->netdev;
 741         int tc;
 742         u32 dv_id;
 743
 744         /* Calculate max LAN frame size */
 745         tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
 746
 747 #ifdef IXGBE_FCOE
 748         /* FCoE traffic class uses FCOE jumbo frames */
 749         if (dev->features & NETIF_F_FCOE_MTU) {
 750                 int fcoe_pb = 0;
 751
 752                 fcoe_pb = netdev_get_prio_tc_map(dev, adapter->fcoe.up);
 753
 754                 if (fcoe_pb == pb && tc < IXGBE_FCOE_JUMBO_FRAME_SIZE)
 755                         tc = IXGBE_FCOE_JUMBO_FRAME_SIZE;
 756         }
 757 #endif
 758
 759         /* Calculate delay value for device */
 760         switch (hw->mac.type) {
 761         case ixgbe_mac_X540:
 762                 dv_id = IXGBE_LOW_DV_X540(tc);
 763                 break;
 764         default:
 765                 dv_id = IXGBE_LOW_DV(tc);
 766                 break;
 767         }
 768
 769         /* Delay value is calculated in bit times convert to KB */
 770         return IXGBE_BT2KB(dv_id);
 771 }
 772
 773 /*
 774  * ixgbe_pbthresh_setup - calculate and setup high low water marks
 775  */
 776 static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter)
 777 {
 778         struct ixgbe_hw *hw = &adapter->hw;
 779         int num_tc = netdev_get_num_tc(adapter->netdev);
 780         int i;
 781
 782         if (!num_tc)
 783                 num_tc = 1;
 784         if (num_tc > IXGBE_DCB_MAX_TRAFFIC_CLASS)
 785                 num_tc = IXGBE_DCB_MAX_TRAFFIC_CLASS;
 786
 787         for (i = 0; i < num_tc; i++) {
 788                 hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i);
 789                 hw->fc.low_water[i] = ixgbe_lpbthresh(adapter, i);
 790
 791                 /* Low water marks must not be larger than high water marks */
 792                 if (hw->fc.low_water[i] > hw->fc.high_water[i])
 793                         hw->fc.low_water[i] = 0;
 794         }
 795
 796         for (; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++)
 797                 hw->fc.high_water[i] = 0;
 798 }
 799
 800
 801
 802 #ifdef NO_VNIC
 803 static void ixgbe_configure(struct ixgbe_adapter *adapter)
 804 {
 805         struct ixgbe_hw *hw = &adapter->hw;
 806
 807         ixgbe_configure_pb(adapter);
 808         ixgbe_configure_dcb(adapter);
 809
 810         ixgbe_set_rx_mode(adapter->netdev);
 811 #ifdef NETIF_F_HW_VLAN_TX
 812         ixgbe_restore_vlan(adapter);
 813 #endif
 814
 815 #ifdef IXGBE_FCOE
 816         if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)
 817                 ixgbe_configure_fcoe(adapter);
 818
 819 #endif /* IXGBE_FCOE */
 820
 821         if (adapter->hw.mac.type != ixgbe_mac_82598EB)
 822                 hw->mac.ops.disable_sec_rx_path(hw);
 823
 824         if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
 825                 ixgbe_init_fdir_signature_82599(&adapter->hw,
 826                                                 adapter->fdir_pballoc);
 827         } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) {
 828                 ixgbe_init_fdir_perfect_82599(&adapter->hw,
 829                                               adapter->fdir_pballoc);
 830                 ixgbe_fdir_filter_restore(adapter);
 831         }
 832
 833         if (adapter->hw.mac.type != ixgbe_mac_82598EB)
 834                 hw->mac.ops.enable_sec_rx_path(hw);
 835
 836         ixgbe_configure_virtualization(adapter);
 837
 838         ixgbe_configure_tx(adapter);
 839         ixgbe_configure_rx(adapter);
 840 }
 841 #endif
 842
 843 static bool ixgbe_is_sfp(struct ixgbe_hw *hw)
 844 {
 845         switch (hw->phy.type) {
 846         case ixgbe_phy_sfp_avago:
 847         case ixgbe_phy_sfp_ftl:
 848         case ixgbe_phy_sfp_intel:
 849         case ixgbe_phy_sfp_unknown:
 850         case ixgbe_phy_sfp_passive_tyco:
 851         case ixgbe_phy_sfp_passive_unknown:
 852         case ixgbe_phy_sfp_active_unknown:
 853         case ixgbe_phy_sfp_ftl_active:
 854                 return true;
 855         case ixgbe_phy_nl:
 856                 if (hw->mac.type == ixgbe_mac_82598EB)
 857                         return true;
 858         default:
 859                 return false;
 860         }
 861 }
 862
 863
 864 /**
 865  * ixgbe_clear_vf_stats_counters - Clear out VF stats after reset
 866  * @adapter: board private structure
 867  *
 868  * On a reset we need to clear out the VF stats or accounting gets
 869  * messed up because they're not clear on read.
 870  **/
 871 void ixgbe_clear_vf_stats_counters(struct ixgbe_adapter *adapter)
 872 {
 873         struct ixgbe_hw *hw = &adapter->hw;
 874         int i;
 875
 876         for (i = 0; i < adapter->num_vfs; i++) {
 877                 adapter->vfinfo[i].last_vfstats.gprc =
 878                         IXGBE_READ_REG(hw, IXGBE_PVFGPRC(i));
 879                 adapter->vfinfo[i].saved_rst_vfstats.gprc +=
 880                         adapter->vfinfo[i].vfstats.gprc;
 881                 adapter->vfinfo[i].vfstats.gprc = 0;
 882                 adapter->vfinfo[i].last_vfstats.gptc =
 883                         IXGBE_READ_REG(hw, IXGBE_PVFGPTC(i));
 884                 adapter->vfinfo[i].saved_rst_vfstats.gptc +=
 885                         adapter->vfinfo[i].vfstats.gptc;
 886                 adapter->vfinfo[i].vfstats.gptc = 0;
 887                 adapter->vfinfo[i].last_vfstats.gorc =
 888                         IXGBE_READ_REG(hw, IXGBE_PVFGORC_LSB(i));
 889                 adapter->vfinfo[i].saved_rst_vfstats.gorc +=
 890                         adapter->vfinfo[i].vfstats.gorc;
 891                 adapter->vfinfo[i].vfstats.gorc = 0;
 892                 adapter->vfinfo[i].last_vfstats.gotc =
 893                         IXGBE_READ_REG(hw, IXGBE_PVFGOTC_LSB(i));
 894                 adapter->vfinfo[i].saved_rst_vfstats.gotc +=
 895                         adapter->vfinfo[i].vfstats.gotc;
 896                 adapter->vfinfo[i].vfstats.gotc = 0;
 897                 adapter->vfinfo[i].last_vfstats.mprc =
 898                         IXGBE_READ_REG(hw, IXGBE_PVFMPRC(i));
 899                 adapter->vfinfo[i].saved_rst_vfstats.mprc +=
 900                         adapter->vfinfo[i].vfstats.mprc;
 901                 adapter->vfinfo[i].vfstats.mprc = 0;
 902         }
 903 }
 904
 905
 906
 907 void ixgbe_reinit_locked(struct ixgbe_adapter *adapter)
 908 {
 909 #ifdef NO_VNIC
 910         WARN_ON(in_interrupt());
 911         /* put off any impending NetWatchDogTimeout */
 912         adapter->netdev->trans_start = jiffies;
 913
 914         while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
 915                 usleep_range(1000, 2000);
 916         ixgbe_down(adapter);
 917         /*
 918          * If SR-IOV enabled then wait a bit before bringing the adapter
 919          * back up to give the VFs time to respond to the reset.  The
 920          * two second wait is based upon the watchdog timer cycle in
 921          * the VF driver.
 922          */
 923         if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 924                 msleep(2000);
 925         ixgbe_up(adapter);
 926         clear_bit(__IXGBE_RESETTING, &adapter->state);
 927 #endif
 928 }
 929
 930 void ixgbe_up(struct ixgbe_adapter *adapter)
 931 {
 932         /* hardware has been reset, we need to reload some things */
 933         //ixgbe_configure(adapter);
 934
 935         //ixgbe_up_complete(adapter);
 936 }
 937
 938 void ixgbe_reset(struct ixgbe_adapter *adapter)
 939 {
 940         struct ixgbe_hw *hw = &adapter->hw;
 941         struct net_device *netdev = adapter->netdev;
 942         int err;
 943
 944         /* lock SFP init bit to prevent race conditions with the watchdog */
 945         while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state))
 946                 usleep_range(1000, 2000);
 947
 948         /* clear all SFP and link config related flags while holding SFP_INIT */
 949         adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP |
 950                              IXGBE_FLAG2_SFP_NEEDS_RESET);
 951         adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG;
 952
 953         err = hw->mac.ops.init_hw(hw);
 954         switch (err) {
 955         case 0:
 956         case IXGBE_ERR_SFP_NOT_PRESENT:
 957         case IXGBE_ERR_SFP_NOT_SUPPORTED:
 958                 break;
 959         case IXGBE_ERR_MASTER_REQUESTS_PENDING:
 960                 e_dev_err("master disable timed out\n");
 961                 break;
 962         case IXGBE_ERR_EEPROM_VERSION:
 963                 /* We are running on a pre-production device, log a warning */
 964                 e_dev_warn("This device is a pre-production adapter/LOM. "
 965                            "Please be aware there may be issues associated "
 966                            "with your hardware.  If you are experiencing "
 967                            "problems please contact your Intel or hardware "
 968                            "representative who provided you with this "
 969                            "hardware.\n");
 970                 break;
 971         default:
 972                 e_dev_err("Hardware Error: %d\n", err);
 973         }
 974
 975         clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
 976
 977         ixgbe_flush_sw_mac_table(adapter);
 978         memcpy(&adapter->mac_table[0].addr, hw->mac.perm_addr,
 979                netdev->addr_len);
 980         adapter->mac_table[0].queue = adapter->num_vfs;
 981         adapter->mac_table[0].state = (IXGBE_MAC_STATE_DEFAULT |
 982                                         IXGBE_MAC_STATE_IN_USE);
 983         hw->mac.ops.set_rar(hw, 0, adapter->mac_table[0].addr,
 984                                 adapter->mac_table[0].queue,
 985                                 IXGBE_RAH_AV);
 986 }
 987
 988
 989
 990
 991
 992
 993 void ixgbe_down(struct ixgbe_adapter *adapter)
 994 {
 995 #ifdef NO_VNIC
 996         struct net_device *netdev = adapter->netdev;
 997         struct ixgbe_hw *hw = &adapter->hw;
 998         u32 rxctrl;
 999         int i;
1000
1001         /* signal that we are down to the interrupt handler */
1002         set_bit(__IXGBE_DOWN, &adapter->state);
1003
1004         /* disable receives */
1005         rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
1006         IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
1007
1008         /* disable all enabled rx queues */
1009         for (i = 0; i < adapter->num_rx_queues; i++)
1010                 /* this call also flushes the previous write */
1011                 ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]);
1012
1013         usleep_range(10000, 20000);
1014
1015         netif_tx_stop_all_queues(netdev);
1016
1017         /* call carrier off first to avoid false dev_watchdog timeouts */
1018         netif_carrier_off(netdev);
1019         netif_tx_disable(netdev);
1020
1021         ixgbe_irq_disable(adapter);
1022
1023         ixgbe_napi_disable_all(adapter);
1024
1025         adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT |
1026                              IXGBE_FLAG2_RESET_REQUESTED);
1027         adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE;
1028
1029         del_timer_sync(&adapter->service_timer);
1030
1031         if (adapter->num_vfs) {
1032                 /* Clear EITR Select mapping */
1033                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0);
1034
1035                 /* Mark all the VFs as inactive */
1036                 for (i = 0 ; i < adapter->num_vfs; i++)
1037                         adapter->vfinfo[i].clear_to_send = 0;
1038
1039                 /* ping all the active vfs to let them know we are going down */
1040                 ixgbe_ping_all_vfs(adapter);
1041
1042                 /* Disable all VFTE/VFRE TX/RX */
1043                 ixgbe_disable_tx_rx(adapter);
1044         }
1045
1046         /* disable transmits in the hardware now that interrupts are off */
1047         for (i = 0; i < adapter->num_tx_queues; i++) {
1048                 u8 reg_idx = adapter->tx_ring[i]->reg_idx;
1049                 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH);
1050         }
1051
1052         /* Disable the Tx DMA engine on 82599 and X540 */
1053         switch (hw->mac.type) {
1054         case ixgbe_mac_82599EB:
1055         case ixgbe_mac_X540:
1056                 IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL,
1057                                 (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) &
1058                                  ~IXGBE_DMATXCTL_TE));
1059                 break;
1060         default:
1061                 break;
1062         }
1063
1064 #ifdef HAVE_PCI_ERS
1065         if (!pci_channel_offline(adapter->pdev))
1066 #endif
1067                 ixgbe_reset(adapter);
1068         /* power down the optics */
1069         if ((hw->phy.multispeed_fiber) ||
1070             ((hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
1071              (hw->mac.type == ixgbe_mac_82599EB)))
1072                 ixgbe_disable_tx_laser(hw);
1073
1074         ixgbe_clean_all_tx_rings(adapter);
1075         ixgbe_clean_all_rx_rings(adapter);
1076
1077 #if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
1078         /* since we reset the hardware DCA settings were cleared */
1079         ixgbe_setup_dca(adapter);
1080 #endif
1081
1082 #endif /* NO_VNIC */
1083 }
1084
1085 #ifndef NO_VNIC
1086
1087 #undef IXGBE_FCOE
1088
1089 /* Artificial max queue cap per traffic class in DCB mode */
1090 #define DCB_QUEUE_CAP 8
1091
1092 /**
1093  * ixgbe_set_dcb_queues: Allocate queues for a DCB-enabled device
1094  * @adapter: board private structure to initialize
1095  *
1096  * When DCB (Data Center Bridging) is enabled, allocate queues for
1097  * each traffic class.  If multiqueue isn't available,then abort DCB
1098  * initialization.
1099  *
1100  * This function handles all combinations of DCB, RSS, and FCoE.
1101  *
1102  **/
1103 static bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter)
1104 {
1105        int tcs;
1106 #ifdef HAVE_MQPRIO
1107        int rss_i, i, offset = 0;
1108        struct net_device *dev = adapter->netdev;
1109
1110        /* Map queue offset and counts onto allocated tx queues */
1111        tcs = netdev_get_num_tc(dev);
1112
1113        if (!tcs)
1114               return false;
1115
1116        rss_i = min_t(int, dev->num_tx_queues / tcs, num_online_cpus());
1117
1118        if (rss_i > DCB_QUEUE_CAP)
1119               rss_i = DCB_QUEUE_CAP;
1120
1121        for (i = 0; i < tcs; i++) {
1122               netdev_set_tc_queue(dev, i, rss_i, offset);
1123               offset += rss_i;
1124        }
1125
1126        adapter->num_tx_queues = rss_i * tcs;
1127        adapter->num_rx_queues = rss_i * tcs;
1128
1129 #ifdef IXGBE_FCOE
1130        /* FCoE enabled queues require special configuration indexed
1131         * by feature specific indices and mask. Here we map FCoE
1132         * indices onto the DCB queue pairs allowing FCoE to own
1133         * configuration later.
1134         */
1135
1136        if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
1137               struct ixgbe_ring_feature *f;
1138               int tc;
1139               u8 prio_tc[IXGBE_DCB_MAX_USER_PRIORITY] = {0};
1140
1141               ixgbe_dcb_unpack_map_cee(&adapter->dcb_cfg,
1142                                     IXGBE_DCB_TX_CONFIG,
1143                                     prio_tc);
1144               tc = prio_tc[adapter->fcoe.up];
1145
1146               f = &adapter->ring_feature[RING_F_FCOE];
1147               f->indices = min_t(int, rss_i, f->indices);
1148               f->mask = rss_i * tc;
1149        }
1150 #endif /* IXGBE_FCOE */
1151 #else
1152        if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
1153               return false;
1154
1155        /* Enable one Queue per traffic class */
1156        tcs = adapter->tc;
1157        if (!tcs)
1158               return false;
1159
1160 #ifdef IXGBE_FCOE
1161        if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
1162               struct ixgbe_ring_feature *f;
1163               int tc = netdev_get_prio_tc_map(adapter->netdev,
1164                                           adapter->fcoe.up);
1165
1166               f = &adapter->ring_feature[RING_F_FCOE];
1167
1168               /*
1169                * We have max 8 queues for FCoE, where 8 the is
1170                * FCoE redirection table size.  We must also share
1171                * ring resources with network traffic so if FCoE TC is
1172                * 4 or greater and we are in 8 TC mode we can only use
1173                * 7 queues.
1174                */
1175               if ((tcs > 4) && (tc >= 4) && (f->indices > 7))
1176                      f->indices = 7;
1177
1178               f->indices = min_t(int, num_online_cpus(), f->indices);
1179               f->mask = tcs;
1180
1181               adapter->num_rx_queues = f->indices + tcs;
1182               adapter->num_tx_queues = f->indices + tcs;
1183
1184               return true;
1185        }
1186
1187 #endif /* IXGBE_FCOE */
1188        adapter->num_rx_queues = tcs;
1189        adapter->num_tx_queues = tcs;
1190 #endif /* HAVE_MQ */
1191
1192        return true;
1193 }
1194
1195 /**
1196  * ixgbe_set_vmdq_queues: Allocate queues for VMDq devices
1197  * @adapter: board private structure to initialize
1198  *
1199  * When VMDq (Virtual Machine Devices queue) is enabled, allocate queues
1200  * and VM pools where appropriate.  If RSS is available, then also try and
1201  * enable RSS and map accordingly.
1202  *
1203  **/
1204 static bool ixgbe_set_vmdq_queues(struct ixgbe_adapter *adapter)
1205 {
1206        int vmdq_i = adapter->ring_feature[RING_F_VMDQ].indices;
1207        int vmdq_m = 0;
1208        int rss_i = adapter->ring_feature[RING_F_RSS].indices;
1209        unsigned long i;
1210        int rss_shift;
1211        bool ret = false;
1212
1213
1214        switch (adapter->flags & (IXGBE_FLAG_RSS_ENABLED
1215                                | IXGBE_FLAG_DCB_ENABLED
1216                                | IXGBE_FLAG_VMDQ_ENABLED)) {
1217
1218        case (IXGBE_FLAG_RSS_ENABLED | IXGBE_FLAG_VMDQ_ENABLED):
1219               switch (adapter->hw.mac.type) {
1220               case ixgbe_mac_82599EB:
1221               case ixgbe_mac_X540:
1222                      vmdq_i = min((int)IXGBE_MAX_VMDQ_INDICES, vmdq_i);
1223                      if (vmdq_i > 32)
1224                             rss_i = 2;
1225                      else
1226                             rss_i = 4;
1227                      i = rss_i;
1228                      rss_shift = find_first_bit(&i, sizeof(i) * 8);
1229                      vmdq_m = ((IXGBE_MAX_VMDQ_INDICES - 1) <<
1230                                rss_shift) & (MAX_RX_QUEUES - 1);
1231                      break;
1232               default:
1233                      break;
1234               }
1235               adapter->num_rx_queues = vmdq_i * rss_i;
1236               adapter->num_tx_queues = min((int)MAX_TX_QUEUES, vmdq_i * rss_i);
1237               ret = true;
1238               break;
1239
1240        case (IXGBE_FLAG_VMDQ_ENABLED):
1241               switch (adapter->hw.mac.type) {
1242               case ixgbe_mac_82598EB:
1243                      vmdq_m = (IXGBE_MAX_VMDQ_INDICES - 1);
1244                      break;
1245               case ixgbe_mac_82599EB:
1246               case ixgbe_mac_X540:
1247                      vmdq_m = (IXGBE_MAX_VMDQ_INDICES - 1) << 1;
1248                      break;
1249               default:
1250                      break;
1251               }
1252               adapter->num_rx_queues = vmdq_i;
1253               adapter->num_tx_queues = vmdq_i;
1254               ret = true;
1255               break;
1256
1257        default:
1258               ret = false;
1259               goto vmdq_queues_out;
1260        }
1261
1262        if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED) {
1263               adapter->num_rx_pools = vmdq_i;
1264               adapter->num_rx_queues_per_pool = adapter->num_rx_queues /
1265                                             vmdq_i;
1266        } else {
1267               adapter->num_rx_pools = adapter->num_rx_queues;
1268               adapter->num_rx_queues_per_pool = 1;
1269        }
1270        /* save the mask for later use */
1271        adapter->ring_feature[RING_F_VMDQ].mask = vmdq_m;
1272 vmdq_queues_out:
1273        return ret;
1274 }
1275
1276 /**
1277  * ixgbe_set_rss_queues: Allocate queues for RSS
1278  * @adapter: board private structure to initialize
1279  *
1280  * This is our "base" multiqueue mode.  RSS (Receive Side Scaling) will try
1281  * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU.
1282  *
1283  **/
1284 static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
1285 {
1286        struct ixgbe_ring_feature *f;
1287
1288        if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) {
1289               adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
1290               return false;
1291        }
1292
1293        /* set mask for 16 queue limit of RSS */
1294        f = &adapter->ring_feature[RING_F_RSS];
1295        f->mask = 0xF;
1296
1297        /*
1298         * Use Flow Director in addition to RSS to ensure the best
1299         * distribution of flows across cores, even when an FDIR flow
1300         * isn't matched.
1301         */
1302        if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
1303               f = &adapter->ring_feature[RING_F_FDIR];
1304
1305               f->indices = min_t(int, num_online_cpus(), f->indices);
1306               f->mask = 0;
1307        }
1308
1309        adapter->num_rx_queues = f->indices;
1310 #ifdef HAVE_TX_MQ
1311        adapter->num_tx_queues = f->indices;
1312 #endif
1313
1314        return true;
1315 }
1316
1317 #ifdef IXGBE_FCOE
1318 /**
1319  * ixgbe_set_fcoe_queues: Allocate queues for Fiber Channel over Ethernet (FCoE)
1320  * @adapter: board private structure to initialize
1321  *
1322  * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges.
1323  * The ring feature mask is not used as a mask for FCoE, as it can take any 8
1324  * rx queues out of the max number of rx queues, instead, it is used as the
1325  * index of the first rx queue used by FCoE.
1326  *
1327  **/
1328 static bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter)
1329 {
1330        struct ixgbe_ring_feature *f;
1331
1332        if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED))
1333               return false;
1334
1335        ixgbe_set_rss_queues(adapter);
1336
1337        f = &adapter->ring_feature[RING_F_FCOE];
1338        f->indices = min_t(int, num_online_cpus(), f->indices);
1339
1340        /* adding FCoE queues */
1341        f->mask = adapter->num_rx_queues;
1342        adapter->num_rx_queues += f->indices;
1343        adapter->num_tx_queues += f->indices;
1344
1345        return true;
1346 }
1347
1348 #endif /* IXGBE_FCOE */
1349 /*
1350  * ixgbe_set_num_queues: Allocate queues for device, feature dependent
1351  * @adapter: board private structure to initialize
1352  *
1353  * This is the top level queue allocation routine.  The order here is very
1354  * important, starting with the "most" number of features turned on at once,
1355  * and ending with the smallest set of features.  This way large combinations
1356  * can be allocated if they're turned on, and smaller combinations are the
1357  * fallthrough conditions.
1358  *
1359  **/
1360 static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter)
1361 {
1362        /* Start with base case */
1363        adapter->num_rx_queues = 1;
1364        adapter->num_tx_queues = 1;
1365        adapter->num_rx_pools = adapter->num_rx_queues;
1366        adapter->num_rx_queues_per_pool = 1;
1367
1368        if (ixgbe_set_vmdq_queues(adapter))
1369               return;
1370
1371        if (ixgbe_set_dcb_queues(adapter))
1372               return;
1373
1374 #ifdef IXGBE_FCOE
1375        if (ixgbe_set_fcoe_queues(adapter))
1376               return;
1377
1378 #endif /* IXGBE_FCOE */
1379        ixgbe_set_rss_queues(adapter);
1380 }
1381
1382 #endif
1383
1384
1385 /**
1386  * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter)
1387  * @adapter: board private structure to initialize
1388  *
1389  * ixgbe_sw_init initializes the Adapter private data structure.
1390  * Fields are initialized based on PCI device information and
1391  * OS network device settings (MTU size).
1392  **/
1393 static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
1394 {
1395         struct ixgbe_hw *hw = &adapter->hw;
1396         struct pci_dev *pdev = adapter->pdev;
1397         int err;
1398
1399         /* PCI config space info */
1400
1401         hw->vendor_id = pdev->vendor;
1402         hw->device_id = pdev->device;
1403         pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
1404         hw->subsystem_vendor_id = pdev->subsystem_vendor;
1405         hw->subsystem_device_id = pdev->subsystem_device;
1406
1407         err = ixgbe_init_shared_code(hw);
1408         if (err) {
1409                 e_err(probe, "init_shared_code failed: %d\n", err);
1410                 goto out;
1411         }
1412         adapter->mac_table = kzalloc(sizeof(struct ixgbe_mac_addr) *
1413                                      hw->mac.num_rar_entries,
1414                                      GFP_ATOMIC);
1415         /* Set capability flags */
1416         switch (hw->mac.type) {
1417         case ixgbe_mac_82598EB:
1418                 adapter->flags |= IXGBE_FLAG_MSI_CAPABLE |
1419                                   IXGBE_FLAG_MSIX_CAPABLE |
1420                                   IXGBE_FLAG_MQ_CAPABLE |
1421                                   IXGBE_FLAG_RSS_CAPABLE;
1422                 adapter->flags |= IXGBE_FLAG_DCB_CAPABLE;
1423 #if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
1424                 adapter->flags |= IXGBE_FLAG_DCA_CAPABLE;
1425 #endif
1426                 adapter->flags &= ~IXGBE_FLAG_SRIOV_CAPABLE;
1427                 adapter->flags2 &= ~IXGBE_FLAG2_RSC_CAPABLE;
1428
1429                 if (hw->device_id == IXGBE_DEV_ID_82598AT)
1430                         adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE;
1431
1432                 adapter->max_msix_q_vectors = IXGBE_MAX_MSIX_Q_VECTORS_82598;
1433                 break;
1434         case ixgbe_mac_X540:
1435                 adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE;
1436         case ixgbe_mac_82599EB:
1437                 adapter->flags |= IXGBE_FLAG_MSI_CAPABLE |
1438                                   IXGBE_FLAG_MSIX_CAPABLE |
1439                                   IXGBE_FLAG_MQ_CAPABLE |
1440                                   IXGBE_FLAG_RSS_CAPABLE;
1441                 adapter->flags |= IXGBE_FLAG_DCB_CAPABLE;
1442 #if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
1443                 adapter->flags |= IXGBE_FLAG_DCA_CAPABLE;
1444 #endif
1445                 adapter->flags |= IXGBE_FLAG_SRIOV_CAPABLE;
1446                 adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE;
1447 #ifdef IXGBE_FCOE
1448                 adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
1449                 adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
1450                 adapter->ring_feature[RING_F_FCOE].indices = 0;
1451 #ifdef CONFIG_DCB
1452                 /* Default traffic class to use for FCoE */
1453                 adapter->fcoe.tc = IXGBE_FCOE_DEFTC;
1454                 adapter->fcoe.up = IXGBE_FCOE_DEFTC;
1455                 adapter->fcoe.up_set = IXGBE_FCOE_DEFTC;
1456 #endif
1457 #endif
1458                 if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM)
1459                         adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE;
1460 #ifndef IXGBE_NO_SMART_SPEED
1461                 hw->phy.smart_speed = ixgbe_smart_speed_on;
1462 #else
1463                 hw->phy.smart_speed = ixgbe_smart_speed_off;
1464 #endif
1465                 adapter->max_msix_q_vectors = IXGBE_MAX_MSIX_Q_VECTORS_82599;
1466         default:
1467                 break;
1468         }
1469
1470         /* n-tuple support exists, always init our spinlock */
1471         //spin_lock_init(&adapter->fdir_perfect_lock);
1472
1473         if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE) {
1474                 int j;
1475                 struct ixgbe_dcb_tc_config *tc;
1476                 int dcb_i = IXGBE_DCB_MAX_TRAFFIC_CLASS;
1477
1478
1479                 adapter->dcb_cfg.num_tcs.pg_tcs = dcb_i;
1480                 adapter->dcb_cfg.num_tcs.pfc_tcs = dcb_i;
1481                 for (j = 0; j < dcb_i; j++) {
1482                         tc = &adapter->dcb_cfg.tc_config[j];
1483                         tc->path[IXGBE_DCB_TX_CONFIG].bwg_id = 0;
1484                         tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent = 100 / dcb_i;
1485                         tc->path[IXGBE_DCB_RX_CONFIG].bwg_id = 0;
1486                         tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent = 100 / dcb_i;
1487                         tc->pfc = ixgbe_dcb_pfc_disabled;
1488                         if (j == 0) {
1489                                 /* total of all TCs bandwidth needs to be 100 */
1490                                 tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent +=
1491                                                                  100 % dcb_i;
1492                                 tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent +=
1493                                                                  100 % dcb_i;
1494                         }
1495                 }
1496
1497                 /* Initialize default user to priority mapping, UPx->TC0 */
1498                 tc = &adapter->dcb_cfg.tc_config[0];
1499                 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF;
1500                 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF;
1501
1502                 adapter->dcb_cfg.bw_percentage[IXGBE_DCB_TX_CONFIG][0] = 100;
1503                 adapter->dcb_cfg.bw_percentage[IXGBE_DCB_RX_CONFIG][0] = 100;
1504                 adapter->dcb_cfg.rx_pba_cfg = ixgbe_dcb_pba_equal;
1505                 adapter->dcb_cfg.pfc_mode_enable = false;
1506                 adapter->dcb_cfg.round_robin_enable = false;
1507                 adapter->dcb_set_bitmap = 0x00;
1508 #ifdef CONFIG_DCB
1509                 adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE;
1510 #endif /* CONFIG_DCB */
1511
1512                 if (hw->mac.type == ixgbe_mac_X540) {
1513                         adapter->dcb_cfg.num_tcs.pg_tcs = 4;
1514                         adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
1515                 }
1516         }
1517 #ifdef CONFIG_DCB
1518         /* XXX does this need to be initialized even w/o DCB? */
1519         //memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
1520         //       sizeof(adapter->temp_dcb_cfg));
1521
1522 #endif
1523         //if (hw->mac.type == ixgbe_mac_82599EB ||
1524         //    hw->mac.type == ixgbe_mac_X540)
1525         //      hw->mbx.ops.init_params(hw);
1526
1527         /* default flow control settings */
1528         hw->fc.requested_mode = ixgbe_fc_full;
1529         hw->fc.current_mode = ixgbe_fc_full;    /* init for ethtool output */
1530
1531         adapter->last_lfc_mode = hw->fc.current_mode;
1532         ixgbe_pbthresh_setup(adapter);
1533         hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE;
1534         hw->fc.send_xon = true;
1535         hw->fc.disable_fc_autoneg = false;
1536
1537         /* set default ring sizes */
1538         adapter->tx_ring_count = IXGBE_DEFAULT_TXD;
1539         adapter->rx_ring_count = IXGBE_DEFAULT_RXD;
1540
1541         /* set default work limits */
1542         adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK;
1543         adapter->rx_work_limit = IXGBE_DEFAULT_RX_WORK;
1544
1545         set_bit(__IXGBE_DOWN, &adapter->state);
1546 out:
1547         return err;
1548 }
1549
1550 /**
1551  * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors)
1552  * @tx_ring:    tx descriptor ring (for a specific queue) to setup
1553  *
1554  * Return 0 on success, negative on failure
1555  **/
1556 int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring)
1557 {
1558         struct device *dev = tx_ring->dev;
1559         //int orig_node = dev_to_node(dev);
1560         int numa_node = -1;
1561         int size;
1562
1563         size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count;
1564
1565         if (tx_ring->q_vector)
1566                 numa_node = tx_ring->q_vector->numa_node;
1567
1568         tx_ring->tx_buffer_info = vzalloc_node(size, numa_node);
1569         if (!tx_ring->tx_buffer_info)
1570                 tx_ring->tx_buffer_info = vzalloc(size);
1571         if (!tx_ring->tx_buffer_info)
1572                 goto err;
1573
1574         /* round up to nearest 4K */
1575         tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc);
1576         tx_ring->size = ALIGN(tx_ring->size, 4096);
1577
1578         //set_dev_node(dev, numa_node);
1579         //tx_ring->desc = dma_alloc_coherent(dev,
1580         //                                 tx_ring->size,
1581         //                                 &tx_ring->dma,
1582         //                                 GFP_KERNEL);
1583         //set_dev_node(dev, orig_node);
1584         //if (!tx_ring->desc)
1585         //      tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size,
1586         //                                         &tx_ring->dma, GFP_KERNEL);
1587         //if (!tx_ring->desc)
1588         //      goto err;
1589
1590         return 0;
1591
1592 err:
1593         vfree(tx_ring->tx_buffer_info);
1594         tx_ring->tx_buffer_info = NULL;
1595         dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n");
1596         return -ENOMEM;
1597 }
1598
1599 /**
1600  * ixgbe_setup_all_tx_resources - allocate all queues Tx resources
1601  * @adapter: board private structure
1602  *
1603  * If this function returns with an error, then it's possible one or
1604  * more of the rings is populated (while the rest are not).  It is the
1605  * callers duty to clean those orphaned rings.
1606  *
1607  * Return 0 on success, negative on failure
1608  **/
1609 static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter)
1610 {
1611         int i, err = 0;
1612
1613         for (i = 0; i < adapter->num_tx_queues; i++) {
1614                 err = ixgbe_setup_tx_resources(adapter->tx_ring[i]);
1615                 if (!err)
1616                         continue;
1617                 e_err(probe, "Allocation for Tx Queue %u failed\n", i);
1618                 break;
1619         }
1620
1621         return err;
1622 }
1623
1624 /**
1625  * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors)
1626  * @rx_ring:    rx descriptor ring (for a specific queue) to setup
1627  *
1628  * Returns 0 on success, negative on failure
1629  **/
1630 int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
1631 {
1632         struct device *dev = rx_ring->dev;
1633         //int orig_node = dev_to_node(dev);
1634         int numa_node = -1;
1635         int size;
1636
1637         size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
1638
1639         if (rx_ring->q_vector)
1640                 numa_node = rx_ring->q_vector->numa_node;
1641
1642         rx_ring->rx_buffer_info = vzalloc_node(size, numa_node);
1643         if (!rx_ring->rx_buffer_info)
1644                 rx_ring->rx_buffer_info = vzalloc(size);
1645         if (!rx_ring->rx_buffer_info)
1646                 goto err;
1647
1648         /* Round up to nearest 4K */
1649         rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);
1650         rx_ring->size = ALIGN(rx_ring->size, 4096);
1651
1652 #ifdef NO_VNIC
1653         set_dev_node(dev, numa_node);
1654         rx_ring->desc = dma_alloc_coherent(dev,
1655                                            rx_ring->size,
1656                                            &rx_ring->dma,
1657                                            GFP_KERNEL);
1658         set_dev_node(dev, orig_node);
1659         if (!rx_ring->desc)
1660                 rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size,
1661                                                    &rx_ring->dma, GFP_KERNEL);
1662         if (!rx_ring->desc)
1663                 goto err;
1664
1665 #ifndef CONFIG_IXGBE_DISABLE_PACKET_SPLIT
1666         ixgbe_init_rx_page_offset(rx_ring);
1667
1668 #endif
1669
1670 #endif /* NO_VNIC */
1671         return 0;
1672 err:
1673         vfree(rx_ring->rx_buffer_info);
1674         rx_ring->rx_buffer_info = NULL;
1675         dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n");
1676         return -ENOMEM;
1677 }
1678
1679 /**
1680  * ixgbe_setup_all_rx_resources - allocate all queues Rx resources
1681  * @adapter: board private structure
1682  *
1683  * If this function returns with an error, then it's possible one or
1684  * more of the rings is populated (while the rest are not).  It is the
1685  * callers duty to clean those orphaned rings.
1686  *
1687  * Return 0 on success, negative on failure
1688  **/
1689 static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter)
1690 {
1691         int i, err = 0;
1692
1693         for (i = 0; i < adapter->num_rx_queues; i++) {
1694                 err = ixgbe_setup_rx_resources(adapter->rx_ring[i]);
1695                 if (!err)
1696                         continue;
1697                 e_err(probe, "Allocation for Rx Queue %u failed\n", i);
1698                 break;
1699         }
1700
1701         return err;
1702 }
1703
1704 /**
1705  * ixgbe_free_tx_resources - Free Tx Resources per Queue
1706  * @tx_ring: Tx descriptor ring for a specific queue
1707  *
1708  * Free all transmit software resources
1709  **/
1710 void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring)
1711 {
1712         //ixgbe_clean_tx_ring(tx_ring);
1713
1714         vfree(tx_ring->tx_buffer_info);
1715         tx_ring->tx_buffer_info = NULL;
1716
1717         /* if not set, then don't free */
1718         if (!tx_ring->desc)
1719                 return;
1720
1721         //dma_free_coherent(tx_ring->dev, tx_ring->size,
1722         //                tx_ring->desc, tx_ring->dma);
1723
1724         tx_ring->desc = NULL;
1725 }
1726
1727 /**
1728  * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues
1729  * @adapter: board private structure
1730  *
1731  * Free all transmit software resources
1732  **/
1733 static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter)
1734 {
1735         int i;
1736
1737         for (i = 0; i < adapter->num_tx_queues; i++)
1738                 if (adapter->tx_ring[i]->desc)
1739                         ixgbe_free_tx_resources(adapter->tx_ring[i]);
1740 }
1741
1742 /**
1743  * ixgbe_free_rx_resources - Free Rx Resources
1744  * @rx_ring: ring to clean the resources from
1745  *
1746  * Free all receive software resources
1747  **/
1748 void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring)
1749 {
1750         //ixgbe_clean_rx_ring(rx_ring);
1751
1752         vfree(rx_ring->rx_buffer_info);
1753         rx_ring->rx_buffer_info = NULL;
1754
1755         /* if not set, then don't free */
1756         if (!rx_ring->desc)
1757                 return;
1758
1759         //dma_free_coherent(rx_ring->dev, rx_ring->size,
1760         //                rx_ring->desc, rx_ring->dma);
1761
1762         rx_ring->desc = NULL;
1763 }
1764
1765 /**
1766  * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues
1767  * @adapter: board private structure
1768  *
1769  * Free all receive software resources
1770  **/
1771 static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter)
1772 {
1773         int i;
1774
1775         for (i = 0; i < adapter->num_rx_queues; i++)
1776                 if (adapter->rx_ring[i]->desc)
1777                         ixgbe_free_rx_resources(adapter->rx_ring[i]);
1778 }
1779
1780
1781 /**
1782  * ixgbe_open - Called when a network interface is made active
1783  * @netdev: network interface device structure
1784  *
1785  * Returns 0 on success, negative value on failure
1786  *
1787  * The open entry point is called when a network interface is made
1788  * active by the system (IFF_UP).  At this point all resources needed
1789  * for transmit and receive operations are allocated, the interrupt
1790  * handler is registered with the OS, the watchdog timer is started,
1791  * and the stack is notified that the interface is ready.
1792  **/
1793 //static
1794 int ixgbe_open(struct net_device *netdev)
1795 {
1796         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1797         int err;
1798
1799         /* disallow open during test */
1800         if (test_bit(__IXGBE_TESTING, &adapter->state))
1801                 return -EBUSY;
1802
1803         netif_carrier_off(netdev);
1804
1805         /* allocate transmit descriptors */
1806         err = ixgbe_setup_all_tx_resources(adapter);
1807         if (err)
1808                 goto err_setup_tx;
1809
1810         /* allocate receive descriptors */
1811         err = ixgbe_setup_all_rx_resources(adapter);
1812         if (err)
1813                 goto err_setup_rx;
1814
1815 #ifdef NO_VNIC
1816         ixgbe_configure(adapter);
1817
1818         err = ixgbe_request_irq(adapter);
1819         if (err)
1820                 goto err_req_irq;
1821
1822         ixgbe_up_complete(adapter);
1823
1824 err_req_irq:
1825 #else
1826         return 0;
1827 #endif
1828 err_setup_rx:
1829         ixgbe_free_all_rx_resources(adapter);
1830 err_setup_tx:
1831         ixgbe_free_all_tx_resources(adapter);
1832         ixgbe_reset(adapter);
1833
1834         return err;
1835 }
1836
1837 /**
1838  * ixgbe_close - Disables a network interface
1839  * @netdev: network interface device structure
1840  *
1841  * Returns 0, this is not allowed to fail
1842  *
1843  * The close entry point is called when an interface is de-activated
1844  * by the OS.  The hardware is still under the drivers control, but
1845  * needs to be disabled.  A global MAC reset is issued to stop the
1846  * hardware, and all transmit and receive resources are freed.
1847  **/
1848 //static
1849 int ixgbe_close(struct net_device *netdev)
1850 {
1851         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1852
1853         //ixgbe_down(adapter);
1854         //ixgbe_free_irq(adapter);
1855
1856         //ixgbe_fdir_filter_exit(adapter);
1857
1858         //ixgbe_free_all_tx_resources(adapter);
1859         //ixgbe_free_all_rx_resources(adapter);
1860
1861         ixgbe_release_hw_control(adapter);
1862
1863         return 0;
1864 }
1865
1866
1867
1868
1869
1870 /**
1871  * ixgbe_get_stats - Get System Network Statistics
1872  * @netdev: network interface device structure
1873  *
1874  * Returns the address of the device statistics structure.
1875  * The statistics are actually updated from the timer callback.
1876  **/
1877 //static
1878 struct net_device_stats *ixgbe_get_stats(struct net_device *netdev)
1879 {
1880         struct ixgbe_adapter *adapter = netdev_priv(netdev);
1881
1882         /* update the stats data */
1883         ixgbe_update_stats(adapter);
1884
1885 #ifdef HAVE_NETDEV_STATS_IN_NETDEV
1886         /* only return the current stats */
1887         return &netdev->stats;
1888 #else
1889         /* only return the current stats */
1890         return &adapter->net_stats;
1891 #endif /* HAVE_NETDEV_STATS_IN_NETDEV */
1892 }
1893
1894 /**
1895  * ixgbe_update_stats - Update the board statistics counters.
1896  * @adapter: board private structure
1897  **/
1898 void ixgbe_update_stats(struct ixgbe_adapter *adapter)
1899 {
1900 #ifdef HAVE_NETDEV_STATS_IN_NETDEV
1901         struct net_device_stats *net_stats = &adapter->netdev->stats;
1902 #else
1903         struct net_device_stats *net_stats = &adapter->net_stats;
1904 #endif /* HAVE_NETDEV_STATS_IN_NETDEV */
1905         struct ixgbe_hw *hw = &adapter->hw;
1906         struct ixgbe_hw_stats *hwstats = &adapter->stats;
1907         u64 total_mpc = 0;
1908         u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
1909         u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0;
1910         u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0;
1911         u64 bytes = 0, packets = 0, hw_csum_rx_error = 0;
1912 #ifndef IXGBE_NO_LRO
1913         u32 flushed = 0, coal = 0;
1914         int num_q_vectors = 1;
1915 #endif
1916 #ifdef IXGBE_FCOE
1917         struct ixgbe_fcoe *fcoe = &adapter->fcoe;
1918         unsigned int cpu;
1919         u64 fcoe_noddp_counts_sum = 0, fcoe_noddp_ext_buff_counts_sum = 0;
1920 #endif /* IXGBE_FCOE */
1921
1922         printk(KERN_DEBUG "ixgbe_update_stats, tx_queues=%d, rx_queues=%d\n",
1923                         adapter->num_tx_queues, adapter->num_rx_queues);
1924
1925         if (test_bit(__IXGBE_DOWN, &adapter->state) ||
1926             test_bit(__IXGBE_RESETTING, &adapter->state))
1927                 return;
1928
1929 #ifndef IXGBE_NO_LRO
1930         if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED)
1931                 num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
1932
1933 #endif
1934         if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
1935                 u64 rsc_count = 0;
1936                 u64 rsc_flush = 0;
1937                 for (i = 0; i < adapter->num_rx_queues; i++) {
1938                         rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count;
1939                         rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush;
1940                 }
1941                 adapter->rsc_total_count = rsc_count;
1942                 adapter->rsc_total_flush = rsc_flush;
1943         }
1944
1945 #ifndef IXGBE_NO_LRO
1946         for (i = 0; i < num_q_vectors; i++) {
1947                 struct ixgbe_q_vector *q_vector = adapter->q_vector[i];
1948                 if (!q_vector)
1949                         continue;
1950                 flushed += q_vector->lrolist.stats.flushed;
1951                 coal += q_vector->lrolist.stats.coal;
1952         }
1953         adapter->lro_stats.flushed = flushed;
1954         adapter->lro_stats.coal = coal;
1955
1956 #endif
1957         for (i = 0; i < adapter->num_rx_queues; i++) {
1958                 struct ixgbe_ring *rx_ring = adapter->rx_ring[i];
1959                 non_eop_descs += rx_ring->rx_stats.non_eop_descs;
1960                 alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed;
1961                 alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed;
1962                 hw_csum_rx_error += rx_ring->rx_stats.csum_err;
1963                 bytes += rx_ring->stats.bytes;
1964                 packets += rx_ring->stats.packets;
1965
1966         }
1967         adapter->non_eop_descs = non_eop_descs;
1968         adapter->alloc_rx_page_failed = alloc_rx_page_failed;
1969         adapter->alloc_rx_buff_failed = alloc_rx_buff_failed;
1970         adapter->hw_csum_rx_error = hw_csum_rx_error;
1971         net_stats->rx_bytes = bytes;
1972         net_stats->rx_packets = packets;
1973
1974         bytes = 0;
1975         packets = 0;
1976         /* gather some stats to the adapter struct that are per queue */
1977         for (i = 0; i < adapter->num_tx_queues; i++) {
1978                 struct ixgbe_ring *tx_ring = adapter->tx_ring[i];
1979                 restart_queue += tx_ring->tx_stats.restart_queue;
1980                 tx_busy += tx_ring->tx_stats.tx_busy;
1981                 bytes += tx_ring->stats.bytes;
1982                 packets += tx_ring->stats.packets;
1983         }
1984         adapter->restart_queue = restart_queue;
1985         adapter->tx_busy = tx_busy;
1986         net_stats->tx_bytes = bytes;
1987         net_stats->tx_packets = packets;
1988
1989         hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
1990
1991         /* 8 register reads */
1992         for (i = 0; i < 8; i++) {
1993                 /* for packet buffers not used, the register should read 0 */
1994                 mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i));
1995                 missed_rx += mpc;
1996                 hwstats->mpc[i] += mpc;
1997                 total_mpc += hwstats->mpc[i];
1998                 hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
1999                 hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
2000                 switch (hw->mac.type) {
2001                 case ixgbe_mac_82598EB:
2002                         hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i));
2003                         hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i));
2004                         hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i));
2005                         hwstats->pxonrxc[i] +=
2006                                 IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
2007                         break;
2008                 case ixgbe_mac_82599EB:
2009                 case ixgbe_mac_X540:
2010                         hwstats->pxonrxc[i] +=
2011                                 IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
2012                         break;
2013                 default:
2014                         break;
2015                 }
2016         }
2017
2018         /*16 register reads */
2019         for (i = 0; i < 16; i++) {
2020                 hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i));
2021                 hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i));
2022                 if ((hw->mac.type == ixgbe_mac_82599EB) ||
2023                     (hw->mac.type == ixgbe_mac_X540)) {
2024                         hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i));
2025                         IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */
2026                         hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i));
2027                         IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */
2028                 }
2029         }
2030
2031         hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
2032         /* work around hardware counting issue */
2033         hwstats->gprc -= missed_rx;
2034
2035         ixgbe_update_xoff_received(adapter);
2036
2037         /* 82598 hardware only has a 32 bit counter in the high register */
2038         switch (hw->mac.type) {
2039         case ixgbe_mac_82598EB:
2040                 hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC);
2041                 hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH);
2042                 hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
2043                 hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH);
2044                 break;
2045         case ixgbe_mac_X540:
2046                 /* OS2BMC stats are X540 only*/
2047                 hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC);
2048                 hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC);
2049                 hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC);
2050                 hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC);
2051         case ixgbe_mac_82599EB:
2052                 for (i = 0; i < 16; i++)
2053                         adapter->hw_rx_no_dma_resources +=
2054                                              IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
2055                 hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
2056                 IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */
2057                 hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL);
2058                 IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */
2059                 hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL);
2060                 IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */
2061                 hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
2062 #ifdef HAVE_TX_MQ
2063                 hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
2064                 hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
2065 #endif /* HAVE_TX_MQ */
2066 #ifdef IXGBE_FCOE
2067                 hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC);
2068                 hwstats->fclast += IXGBE_READ_REG(hw, IXGBE_FCLAST);
2069                 hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC);
2070                 hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC);
2071                 hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC);
2072                 hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC);
2073                 hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC);
2074                 /* Add up per cpu counters for total ddp aloc fail */
2075                 if (fcoe && fcoe->pcpu_noddp && fcoe->pcpu_noddp_ext_buff) {
2076                         for_each_possible_cpu(cpu) {
2077                                 fcoe_noddp_counts_sum +=
2078                                         *per_cpu_ptr(fcoe->pcpu_noddp, cpu);
2079                                 fcoe_noddp_ext_buff_counts_sum +=
2080                                         *per_cpu_ptr(fcoe->
2081                                                 pcpu_noddp_ext_buff, cpu);
2082                         }
2083                 }
2084                 hwstats->fcoe_noddp = fcoe_noddp_counts_sum;
2085                 hwstats->fcoe_noddp_ext_buff = fcoe_noddp_ext_buff_counts_sum;
2086
2087 #endif /* IXGBE_FCOE */
2088                 break;
2089         default:
2090                 break;
2091         }
2092         bprc = IXGBE_READ_REG(hw, IXGBE_BPRC);
2093         hwstats->bprc += bprc;
2094         hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC);
2095         if (hw->mac.type == ixgbe_mac_82598EB)
2096                 hwstats->mprc -= bprc;
2097         hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC);
2098         hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64);
2099         hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127);
2100         hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255);
2101         hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511);
2102         hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023);
2103         hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522);
2104         hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
2105         lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC);
2106         hwstats->lxontxc += lxon;
2107         lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
2108         hwstats->lxofftxc += lxoff;
2109         hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC);
2110         hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC);
2111         /*
2112          * 82598 errata - tx of flow control packets is included in tx counters
2113          */
2114         xon_off_tot = lxon + lxoff;
2115         hwstats->gptc -= xon_off_tot;
2116         hwstats->mptc -= xon_off_tot;
2117         hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN));
2118         hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
2119         hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC);
2120         hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC);
2121         hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
2122         hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64);
2123         hwstats->ptc64 -= xon_off_tot;
2124         hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127);
2125         hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255);
2126         hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511);
2127         hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023);
2128         hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522);
2129         hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
2130         /* Fill out the OS statistics structure */
2131         net_stats->multicast = hwstats->mprc;
2132
2133         /* Rx Errors */
2134         net_stats->rx_errors = hwstats->crcerrs +
2135                                        hwstats->rlec;
2136         net_stats->rx_dropped = 0;
2137         net_stats->rx_length_errors = hwstats->rlec;
2138         net_stats->rx_crc_errors = hwstats->crcerrs;
2139         net_stats->rx_missed_errors = total_mpc;
2140
2141         /*
2142          * VF Stats Collection - skip while resetting because these
2143          * are not clear on read and otherwise you'll sometimes get
2144          * crazy values.
2145          */
2146         if (!test_bit(__IXGBE_RESETTING, &adapter->state)) {
2147                 for (i = 0; i < adapter->num_vfs; i++) {
2148                         UPDATE_VF_COUNTER_32bit(IXGBE_PVFGPRC(i),             \
2149                                         adapter->vfinfo[i].last_vfstats.gprc, \
2150                                         adapter->vfinfo[i].vfstats.gprc);
2151                         UPDATE_VF_COUNTER_32bit(IXGBE_PVFGPTC(i),             \
2152                                         adapter->vfinfo[i].last_vfstats.gptc, \
2153                                         adapter->vfinfo[i].vfstats.gptc);
2154                         UPDATE_VF_COUNTER_36bit(IXGBE_PVFGORC_LSB(i),         \
2155                                         IXGBE_PVFGORC_MSB(i),                 \
2156                                         adapter->vfinfo[i].last_vfstats.gorc, \
2157                                         adapter->vfinfo[i].vfstats.gorc);
2158                         UPDATE_VF_COUNTER_36bit(IXGBE_PVFGOTC_LSB(i),         \
2159                                         IXGBE_PVFGOTC_MSB(i),                 \
2160                                         adapter->vfinfo[i].last_vfstats.gotc, \
2161                                         adapter->vfinfo[i].vfstats.gotc);
2162                         UPDATE_VF_COUNTER_32bit(IXGBE_PVFMPRC(i),             \
2163                                         adapter->vfinfo[i].last_vfstats.mprc, \
2164                                         adapter->vfinfo[i].vfstats.mprc);
2165                 }
2166         }
2167 }
2168
2169
2170 #ifdef NO_VNIC
2171
2172 /**
2173  * ixgbe_watchdog_update_link - update the link status
2174  * @adapter - pointer to the device adapter structure
2175  * @link_speed - pointer to a u32 to store the link_speed
2176  **/
2177 static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter)
2178 {
2179         struct ixgbe_hw *hw = &adapter->hw;
2180         u32 link_speed = adapter->link_speed;
2181         bool link_up = adapter->link_up;
2182         bool pfc_en = adapter->dcb_cfg.pfc_mode_enable;
2183
2184         if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE))
2185                 return;
2186
2187         if (hw->mac.ops.check_link) {
2188                 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
2189         } else {
2190                 /* always assume link is up, if no check link function */
2191                 link_speed = IXGBE_LINK_SPEED_10GB_FULL;
2192                 link_up = true;
2193         }
2194
2195 #ifdef HAVE_DCBNL_IEEE
2196         if (adapter->ixgbe_ieee_pfc)
2197                 pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en);
2198
2199 #endif
2200         if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) {
2201                 hw->mac.ops.fc_enable(hw);
2202                 //ixgbe_set_rx_drop_en(adapter);
2203         }
2204
2205         if (link_up ||
2206             time_after(jiffies, (adapter->link_check_timeout +
2207                                  IXGBE_TRY_LINK_TIMEOUT))) {
2208                 adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE;
2209                 IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC);
2210                 IXGBE_WRITE_FLUSH(hw);
2211         }
2212
2213         adapter->link_up = link_up;
2214         adapter->link_speed = link_speed;
2215 }
2216 #endif
2217
2218
2219
2220 #ifdef NO_VNIC
2221
2222 /**
2223  * ixgbe_service_task - manages and runs subtasks
2224  * @work: pointer to work_struct containing our data
2225  **/
2226 static void ixgbe_service_task(struct work_struct *work)
2227 {
2228         //struct ixgbe_adapter *adapter = container_of(work,
2229         //                                           struct ixgbe_adapter,
2230         //                                           service_task);
2231
2232         //ixgbe_reset_subtask(adapter);
2233         //ixgbe_sfp_detection_subtask(adapter);
2234         //ixgbe_sfp_link_config_subtask(adapter);
2235         //ixgbe_check_overtemp_subtask(adapter);
2236         //ixgbe_watchdog_subtask(adapter);
2237 #ifdef HAVE_TX_MQ
2238         //ixgbe_fdir_reinit_subtask(adapter);
2239 #endif
2240         //ixgbe_check_hang_subtask(adapter);
2241
2242         //ixgbe_service_event_complete(adapter);
2243 }
2244
2245
2246
2247
2248 #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
2249                        IXGBE_TXD_CMD_RS)
2250
2251
2252 /**
2253  * ixgbe_set_mac - Change the Ethernet Address of the NIC
2254  * @netdev: network interface device structure
2255  * @p: pointer to an address structure
2256  *
2257  * Returns 0 on success, negative on failure
2258  **/
2259 static int ixgbe_set_mac(struct net_device *netdev, void *p)
2260 {
2261         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2262         struct ixgbe_hw *hw = &adapter->hw;
2263         struct sockaddr *addr = p;
2264         int ret;
2265
2266         if (!is_valid_ether_addr(addr->sa_data))
2267                 return -EADDRNOTAVAIL;
2268
2269         ixgbe_del_mac_filter(adapter, hw->mac.addr,
2270                              adapter->num_vfs);
2271         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
2272         memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
2273
2274
2275         /* set the correct pool for the new PF MAC address in entry 0 */
2276         ret = ixgbe_add_mac_filter(adapter, hw->mac.addr,
2277                                     adapter->num_vfs);
2278         return ret > 0 ? 0 : ret;
2279 }
2280
2281
2282 /**
2283  * ixgbe_ioctl -
2284  * @netdev:
2285  * @ifreq:
2286  * @cmd:
2287  **/
2288 static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
2289 {
2290         switch (cmd) {
2291 #ifdef ETHTOOL_OPS_COMPAT
2292         case SIOCETHTOOL:
2293                 return ethtool_ioctl(ifr);
2294 #endif
2295         default:
2296                 return -EOPNOTSUPP;
2297         }
2298 }
2299 #endif /* NO_VNIC */
2300
2301
2302 void ixgbe_do_reset(struct net_device *netdev)
2303 {
2304         struct ixgbe_adapter *adapter = netdev_priv(netdev);
2305
2306         if (netif_running(netdev))
2307                 ixgbe_reinit_locked(adapter);
2308         else
2309                 ixgbe_reset(adapter);
2310 }
2311
2312
2313
2314
2315
2316
2317 /**
2318  * ixgbe_probe - Device Initialization Routine
2319  * @pdev: PCI device information struct
2320  * @ent: entry in ixgbe_pci_tbl
2321  *
2322  * Returns 0 on success, negative on failure
2323  *
2324  * ixgbe_probe initializes an adapter identified by a pci_dev structure.
2325  * The OS initialization, configuring of the adapter private structure,
2326  * and a hardware reset occur.
2327  **/
2328 //static
2329 int ixgbe_kni_probe(struct pci_dev *pdev,
2330                                  struct net_device **lad_dev)
2331 {
2332         size_t count;
2333         struct net_device *netdev;
2334         struct ixgbe_adapter *adapter = NULL;
2335         struct ixgbe_hw *hw = NULL;
2336         static int cards_found;
2337         int i, err;
2338         u16 offset;
2339         u16 eeprom_verh, eeprom_verl, eeprom_cfg_blkh, eeprom_cfg_blkl;
2340         u32 etrack_id;
2341         u16 build, major, patch;
2342         char *info_string, *i_s_var;
2343         u8 part_str[IXGBE_PBANUM_LENGTH];
2344         enum ixgbe_mac_type mac_type = ixgbe_mac_unknown;
2345 #ifdef HAVE_TX_MQ
2346         unsigned int indices = num_possible_cpus();
2347 #endif /* HAVE_TX_MQ */
2348 #ifdef IXGBE_FCOE
2349         u16 device_caps;
2350 #endif
2351         u16 wol_cap;
2352
2353         err = pci_enable_device_mem(pdev);
2354         if (err)
2355                 return err;
2356
2357
2358 #ifdef NO_VNIC
2359         err = pci_request_selected_regions(pdev, pci_select_bars(pdev,
2360                                            IORESOURCE_MEM), ixgbe_driver_name);
2361         if (err) {
2362                 dev_err(pci_dev_to_dev(pdev),
2363                         "pci_request_selected_regions failed 0x%x\n", err);
2364                 goto err_pci_reg;
2365         }
2366 #endif
2367
2368         /*
2369          * The mac_type is needed before we have the adapter is  set up
2370          * so rather than maintain two devID -> MAC tables we dummy up
2371          * an ixgbe_hw stuct and use ixgbe_set_mac_type.
2372          */
2373         hw = vmalloc(sizeof(struct ixgbe_hw));
2374         if (!hw) {
2375                 pr_info("Unable to allocate memory for early mac "
2376                         "check\n");
2377         } else {
2378                 hw->vendor_id = pdev->vendor;
2379                 hw->device_id = pdev->device;
2380                 ixgbe_set_mac_type(hw);
2381                 mac_type = hw->mac.type;
2382                 vfree(hw);
2383         }
2384
2385 #ifdef NO_VNIC
2386         /*
2387          * Workaround of Silicon errata on 82598. Disable LOs in the PCI switch
2388          * port to which the 82598 is connected to prevent duplicate
2389          * completions caused by LOs.  We need the mac type so that we only
2390          * do this on 82598 devices, ixgbe_set_mac_type does this for us if
2391          * we set it's device ID.
2392          */
2393         if (mac_type == ixgbe_mac_82598EB)
2394                 pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
2395
2396         pci_enable_pcie_error_reporting(pdev);
2397
2398         pci_set_master(pdev);
2399 #endif
2400
2401 #ifdef HAVE_TX_MQ
2402 #ifdef CONFIG_DCB
2403 #ifdef HAVE_MQPRIO
2404         indices *= IXGBE_DCB_MAX_TRAFFIC_CLASS;
2405 #else
2406         indices = max_t(unsigned int, indices, IXGBE_MAX_DCB_INDICES);
2407 #endif /* HAVE_MQPRIO */
2408 #endif /* CONFIG_DCB */
2409
2410         if (mac_type == ixgbe_mac_82598EB)
2411                 indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES);
2412         else
2413                 indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES);
2414
2415 #ifdef IXGBE_FCOE
2416         indices += min_t(unsigned int, num_possible_cpus(),
2417                          IXGBE_MAX_FCOE_INDICES);
2418 #endif
2419         netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices);
2420 #else /* HAVE_TX_MQ */
2421         netdev = alloc_etherdev(sizeof(struct ixgbe_adapter));
2422 #endif /* HAVE_TX_MQ */
2423         if (!netdev) {
2424                 err = -ENOMEM;
2425                 goto err_alloc_etherdev;
2426         }
2427
2428         SET_NETDEV_DEV(netdev, &pdev->dev);
2429
2430         adapter = netdev_priv(netdev);
2431         //pci_set_drvdata(pdev, adapter);
2432
2433         adapter->netdev = netdev;
2434         adapter->pdev = pdev;
2435         hw = &adapter->hw;
2436         hw->back = adapter;
2437         adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
2438
2439 #ifdef HAVE_PCI_ERS
2440         /*
2441          * call save state here in standalone driver because it relies on
2442          * adapter struct to exist, and needs to call netdev_priv
2443          */
2444         pci_save_state(pdev);
2445
2446 #endif
2447         hw->hw_addr = ioremap(pci_resource_start(pdev, 0),
2448                               pci_resource_len(pdev, 0));
2449         if (!hw->hw_addr) {
2450                 err = -EIO;
2451                 goto err_ioremap;
2452         }
2453         //ixgbe_assign_netdev_ops(netdev);
2454         ixgbe_set_ethtool_ops(netdev);
2455
2456         strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name));
2457
2458         adapter->bd_number = cards_found;
2459
2460         /* setup the private structure */
2461         err = ixgbe_sw_init(adapter);
2462         if (err)
2463                 goto err_sw_init;
2464
2465         /* Make it possible the adapter to be woken up via WOL */
2466         switch (adapter->hw.mac.type) {
2467         case ixgbe_mac_82599EB:
2468         case ixgbe_mac_X540:
2469                 IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);
2470                 break;
2471         default:
2472                 break;
2473         }
2474
2475         /*
2476          * check_options must be called before setup_link to set up
2477          * hw->fc completely
2478          */
2479         //ixgbe_check_options(adapter);
2480
2481 #ifndef NO_VNIC
2482         /* reset_hw fills in the perm_addr as well */
2483         hw->phy.reset_if_overtemp = true;
2484         err = hw->mac.ops.reset_hw(hw);
2485         hw->phy.reset_if_overtemp = false;
2486         if (err == IXGBE_ERR_SFP_NOT_PRESENT &&
2487             hw->mac.type == ixgbe_mac_82598EB) {
2488                 err = 0;
2489         } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
2490                 e_dev_err("failed to load because an unsupported SFP+ "
2491                           "module type was detected.\n");
2492                 e_dev_err("Reload the driver after installing a supported "
2493                           "module.\n");
2494                 goto err_sw_init;
2495         } else if (err) {
2496                 e_dev_err("HW Init failed: %d\n", err);
2497                 goto err_sw_init;
2498         }
2499 #endif
2500
2501         //if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
2502         //      ixgbe_probe_vf(adapter);
2503
2504
2505 #ifdef MAX_SKB_FRAGS
2506         netdev->features |= NETIF_F_SG |
2507                             NETIF_F_IP_CSUM;
2508
2509 #ifdef NETIF_F_IPV6_CSUM
2510         netdev->features |= NETIF_F_IPV6_CSUM;
2511 #endif
2512
2513 #ifdef NETIF_F_HW_VLAN_TX
2514         netdev->features |= NETIF_F_HW_VLAN_TX |
2515                             NETIF_F_HW_VLAN_RX;
2516 #endif
2517 #ifdef NETIF_F_TSO
2518         netdev->features |= NETIF_F_TSO;
2519 #endif /* NETIF_F_TSO */
2520 #ifdef NETIF_F_TSO6
2521         netdev->features |= NETIF_F_TSO6;
2522 #endif /* NETIF_F_TSO6 */
2523 #ifdef NETIF_F_RXHASH
2524         netdev->features |= NETIF_F_RXHASH;
2525 #endif /* NETIF_F_RXHASH */
2526
2527 #ifdef HAVE_NDO_SET_FEATURES
2528         netdev->features |= NETIF_F_RXCSUM;
2529
2530         /* copy netdev features into list of user selectable features */
2531         netdev->hw_features |= netdev->features;
2532
2533         /* give us the option of enabling RSC/LRO later */
2534 #ifdef IXGBE_NO_LRO
2535         if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)
2536 #endif
2537                 netdev->hw_features |= NETIF_F_LRO;
2538
2539 #else
2540 #ifdef NETIF_F_GRO
2541
2542         /* this is only needed on kernels prior to 2.6.39 */
2543         netdev->features |= NETIF_F_GRO;
2544 #endif /* NETIF_F_GRO */
2545 #endif
2546
2547 #ifdef NETIF_F_HW_VLAN_TX
2548         /* set this bit last since it cannot be part of hw_features */
2549         netdev->features |= NETIF_F_HW_VLAN_FILTER;
2550 #endif
2551         switch (adapter->hw.mac.type) {
2552         case ixgbe_mac_82599EB:
2553         case ixgbe_mac_X540:
2554                 netdev->features |= NETIF_F_SCTP_CSUM;
2555 #ifdef HAVE_NDO_SET_FEATURES
2556                 netdev->hw_features |= NETIF_F_SCTP_CSUM |
2557                                        NETIF_F_NTUPLE;
2558 #endif
2559                 break;
2560         default:
2561                 break;
2562         }
2563
2564 #ifdef HAVE_NETDEV_VLAN_FEATURES
2565         netdev->vlan_features |= NETIF_F_SG |
2566                                  NETIF_F_IP_CSUM |
2567                                  NETIF_F_IPV6_CSUM |
2568                                  NETIF_F_TSO |
2569                                  NETIF_F_TSO6;
2570
2571 #endif /* HAVE_NETDEV_VLAN_FEATURES */
2572         /*
2573          * If perfect filters were enabled in check_options(), enable them
2574          * on the netdevice too.
2575          */
2576         if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
2577                 netdev->features |= NETIF_F_NTUPLE;
2578         if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED)
2579                 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
2580         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
2581                 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
2582         if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED) {
2583                 adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
2584                 /* clear n-tuple support in the netdev unconditionally */
2585                 netdev->features &= ~NETIF_F_NTUPLE;
2586         }
2587
2588 #ifdef NETIF_F_RXHASH
2589         if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED))
2590                 netdev->features &= ~NETIF_F_RXHASH;
2591
2592 #endif /* NETIF_F_RXHASH */
2593         if (netdev->features & NETIF_F_LRO) {
2594                 if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) &&
2595                     ((adapter->rx_itr_setting == 1) ||
2596                      (adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR))) {
2597                         adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
2598                 } else if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) {
2599 #ifdef IXGBE_NO_LRO
2600                         e_info(probe, "InterruptThrottleRate set too high, "
2601                                "disabling RSC\n");
2602 #else
2603                         e_info(probe, "InterruptThrottleRate set too high, "
2604                                "falling back to software LRO\n");
2605 #endif
2606                 }
2607         }
2608 #ifdef CONFIG_DCB
2609         //netdev->dcbnl_ops = &dcbnl_ops;
2610 #endif
2611
2612 #ifdef IXGBE_FCOE
2613 #ifdef NETIF_F_FSO
2614         if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) {
2615                 ixgbe_get_device_caps(hw, &device_caps);
2616                 if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) {
2617                         adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
2618                         adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE;
2619                         e_info(probe, "FCoE offload feature is not available. "
2620                                "Disabling FCoE offload feature\n");
2621                 }
2622 #ifndef HAVE_NETDEV_OPS_FCOE_ENABLE
2623                 else {
2624                         adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
2625                         adapter->ring_feature[RING_F_FCOE].indices =
2626                                 IXGBE_FCRETA_SIZE;
2627                         netdev->features |= NETIF_F_FSO |
2628                                             NETIF_F_FCOE_CRC |
2629                                             NETIF_F_FCOE_MTU;
2630                         netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
2631                 }
2632 #endif /* HAVE_NETDEV_OPS_FCOE_ENABLE */
2633 #ifdef HAVE_NETDEV_VLAN_FEATURES
2634                 netdev->vlan_features |= NETIF_F_FSO |
2635                                          NETIF_F_FCOE_CRC |
2636                                          NETIF_F_FCOE_MTU;
2637 #endif /* HAVE_NETDEV_VLAN_FEATURES */
2638         }
2639 #endif /* NETIF_F_FSO */
2640 #endif /* IXGBE_FCOE */
2641
2642 #endif /* MAX_SKB_FRAGS */
2643         /* make sure the EEPROM is good */
2644         if (hw->eeprom.ops.validate_checksum &&
2645             (hw->eeprom.ops.validate_checksum(hw, NULL) < 0)) {
2646                 e_dev_err("The EEPROM Checksum Is Not Valid\n");
2647                 err = -EIO;
2648                 goto err_sw_init;
2649         }
2650
2651         memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len);
2652 #ifdef ETHTOOL_GPERMADDR
2653         memcpy(netdev->perm_addr, hw->mac.perm_addr, netdev->addr_len);
2654
2655         if (ixgbe_validate_mac_addr(netdev->perm_addr)) {
2656                 e_dev_err("invalid MAC address\n");
2657                 err = -EIO;
2658                 goto err_sw_init;
2659         }
2660 #else
2661         if (ixgbe_validate_mac_addr(netdev->dev_addr)) {
2662                 e_dev_err("invalid MAC address\n");
2663                 err = -EIO;
2664                 goto err_sw_init;
2665         }
2666 #endif
2667         memcpy(&adapter->mac_table[0].addr, hw->mac.perm_addr,
2668                netdev->addr_len);
2669         adapter->mac_table[0].queue = adapter->num_vfs;
2670         adapter->mac_table[0].state = (IXGBE_MAC_STATE_DEFAULT |
2671                                        IXGBE_MAC_STATE_IN_USE);
2672         hw->mac.ops.set_rar(hw, 0, adapter->mac_table[0].addr,
2673                             adapter->mac_table[0].queue,
2674                             IXGBE_RAH_AV);
2675
2676         //setup_timer(&adapter->service_timer, &ixgbe_service_timer,
2677         //          (unsigned long) adapter);
2678
2679         //INIT_WORK(&adapter->service_task, ixgbe_service_task);
2680         //clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);
2681
2682         //err = ixgbe_init_interrupt_scheme(adapter);
2683         //if (err)
2684         //      goto err_sw_init;
2685
2686         //adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
2687         ixgbe_set_num_queues(adapter);
2688
2689         adapter->wol = 0;
2690         /* WOL not supported for all but the following */
2691         switch (pdev->device) {
2692         case IXGBE_DEV_ID_82599_SFP:
2693                 /* Only these subdevice supports WOL */
2694                 switch (pdev->subsystem_device) {
2695                 case IXGBE_SUBDEV_ID_82599_560FLR:
2696                         /* only support first port */
2697                         if (hw->bus.func != 0)
2698                                 break;
2699                 case IXGBE_SUBDEV_ID_82599_SFP:
2700                         adapter->wol = IXGBE_WUFC_MAG;
2701                         break;
2702                 }
2703                 break;
2704         case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
2705                 /* All except this subdevice support WOL */
2706                 if (pdev->subsystem_device != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ)
2707                         adapter->wol = IXGBE_WUFC_MAG;
2708                 break;
2709         case IXGBE_DEV_ID_82599_KX4:
2710                 adapter->wol = IXGBE_WUFC_MAG;
2711                 break;
2712         case IXGBE_DEV_ID_X540T:
2713                 /* Check eeprom to see if it is enabled */
2714                 ixgbe_read_eeprom(hw, 0x2c, &adapter->eeprom_cap);
2715                 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK;
2716
2717                 if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) ||
2718                     ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) &&
2719                      (hw->bus.func == 0)))
2720                         adapter->wol = IXGBE_WUFC_MAG;
2721                 break;
2722         }
2723         //device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
2724
2725
2726         /*
2727          * Save off EEPROM version number and Option Rom version which
2728          * together make a unique identify for the eeprom
2729          */
2730         ixgbe_read_eeprom(hw, 0x2e, &eeprom_verh);
2731         ixgbe_read_eeprom(hw, 0x2d, &eeprom_verl);
2732
2733         etrack_id = (eeprom_verh << 16) | eeprom_verl;
2734
2735         ixgbe_read_eeprom(hw, 0x17, &offset);
2736
2737         /* Make sure offset to SCSI block is valid */
2738         if (!(offset == 0x0) && !(offset == 0xffff)) {
2739                 ixgbe_read_eeprom(hw, offset + 0x84, &eeprom_cfg_blkh);
2740                 ixgbe_read_eeprom(hw, offset + 0x83, &eeprom_cfg_blkl);
2741
2742                 /* Only display Option Rom if exist */
2743                 if (eeprom_cfg_blkl && eeprom_cfg_blkh) {
2744                         major = eeprom_cfg_blkl >> 8;
2745                         build = (eeprom_cfg_blkl << 8) | (eeprom_cfg_blkh >> 8);
2746                         patch = eeprom_cfg_blkh & 0x00ff;
2747
2748                         snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id),
2749                                  "0x%08x, %d.%d.%d", etrack_id, major, build,
2750                                  patch);
2751                 } else {
2752                         snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id),
2753                                  "0x%08x", etrack_id);
2754                 }
2755         } else {
2756                 snprintf(adapter->eeprom_id, sizeof(adapter->eeprom_id),
2757                          "0x%08x", etrack_id);
2758         }
2759
2760         /* reset the hardware with the new settings */
2761         err = hw->mac.ops.start_hw(hw);
2762         if (err == IXGBE_ERR_EEPROM_VERSION) {
2763                 /* We are running on a pre-production device, log a warning */
2764                 e_dev_warn("This device is a pre-production adapter/LOM. "
2765                            "Please be aware there may be issues associated "
2766                            "with your hardware.  If you are experiencing "
2767                            "problems please contact your Intel or hardware "
2768                            "representative who provided you with this "
2769                            "hardware.\n");
2770         }
2771         /* pick up the PCI bus settings for reporting later */
2772         if (hw->mac.ops.get_bus_info)
2773                 hw->mac.ops.get_bus_info(hw);
2774
2775         strlcpy(netdev->name, "eth%d", sizeof(netdev->name));
2776         *lad_dev = netdev;
2777
2778         adapter->netdev_registered = true;
2779 #ifdef NO_VNIC
2780         /* power down the optics */
2781         if ((hw->phy.multispeed_fiber) ||
2782             ((hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
2783              (hw->mac.type == ixgbe_mac_82599EB)))
2784                 ixgbe_disable_tx_laser(hw);
2785
2786         /* carrier off reporting is important to ethtool even BEFORE open */
2787         netif_carrier_off(netdev);
2788         /* keep stopping all the transmit queues for older kernels */
2789         netif_tx_stop_all_queues(netdev);
2790 #endif
2791
2792         /* print all messages at the end so that we use our eth%d name */
2793         /* print bus type/speed/width info */
2794         e_dev_info("(PCI Express:%s:%s) ",
2795                    (hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0GT/s" :
2796                    hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5GT/s" :
2797                    "Unknown"),
2798                    (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" :
2799                    hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" :
2800                    hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" :
2801                    "Unknown"));
2802
2803         /* print the MAC address */
2804         for (i = 0; i < 6; i++)
2805                 pr_cont("%2.2x%c", netdev->dev_addr[i], i == 5 ? '\n' : ':');
2806
2807         /* First try to read PBA as a string */
2808         err = ixgbe_read_pba_string(hw, part_str, IXGBE_PBANUM_LENGTH);
2809         if (err)
2810                 strlcpy(part_str, "Unknown", sizeof(part_str));
2811         if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present)
2812                 e_info(probe, "MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n",
2813                        hw->mac.type, hw->phy.type, hw->phy.sfp_type, part_str);
2814         else
2815                 e_info(probe, "MAC: %d, PHY: %d, PBA No: %s\n",
2816                       hw->mac.type, hw->phy.type, part_str);
2817
2818         if (((hw->bus.speed == ixgbe_bus_speed_2500) &&
2819              (hw->bus.width <= ixgbe_bus_width_pcie_x4)) ||
2820             (hw->bus.width <= ixgbe_bus_width_pcie_x2)) {
2821                 e_dev_warn("PCI-Express bandwidth available for this "
2822                            "card is not sufficient for optimal "
2823                            "performance.\n");
2824                 e_dev_warn("For optimal performance a x8 PCI-Express "
2825                            "slot is required.\n");
2826         }
2827
2828 #define INFO_STRING_LEN 255
2829         info_string = kzalloc(INFO_STRING_LEN, GFP_KERNEL);
2830         if (!info_string) {
2831                 e_err(probe, "allocation for info string failed\n");
2832                 goto no_info_string;
2833         }
2834         count = 0;
2835         i_s_var = info_string;
2836         count += snprintf(i_s_var, INFO_STRING_LEN, "Enabled Features: ");
2837
2838         i_s_var = info_string + count;
2839         count += snprintf(i_s_var, (INFO_STRING_LEN - count),
2840                         "RxQ: %d TxQ: %d ", adapter->num_rx_queues,
2841                                         adapter->num_tx_queues);
2842         i_s_var = info_string + count;
2843 #ifdef IXGBE_FCOE
2844         if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
2845                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "FCoE ");
2846                 i_s_var = info_string + count;
2847         }
2848 #endif
2849         if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) {
2850                 count += snprintf(i_s_var, INFO_STRING_LEN - count,
2851                                                         "FdirHash ");
2852                 i_s_var = info_string + count;
2853         }
2854         if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) {
2855                 count += snprintf(i_s_var, INFO_STRING_LEN - count,
2856                                                 "FdirPerfect ");
2857                 i_s_var = info_string + count;
2858         }
2859         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
2860                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "DCB ");
2861                 i_s_var = info_string + count;
2862         }
2863         if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
2864                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "RSS ");
2865                 i_s_var = info_string + count;
2866         }
2867         if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) {
2868                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "DCA ");
2869                 i_s_var = info_string + count;
2870         }
2871         if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
2872                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "RSC ");
2873                 i_s_var = info_string + count;
2874         }
2875 #ifndef IXGBE_NO_LRO
2876         else if (netdev->features & NETIF_F_LRO) {
2877                 count += snprintf(i_s_var, INFO_STRING_LEN - count, "LRO ");
2878                 i_s_var = info_string + count;
2879         }
2880 #endif
2881
2882         BUG_ON(i_s_var > (info_string + INFO_STRING_LEN));
2883         /* end features printing */
2884         e_info(probe, "%s\n", info_string);
2885         kfree(info_string);
2886 no_info_string:
2887
2888         /* firmware requires blank driver version */
2889         ixgbe_set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, 0xFF);
2890
2891 #if defined(HAVE_NETDEV_STORAGE_ADDRESS) && defined(NETDEV_HW_ADDR_T_SAN)
2892         /* add san mac addr to netdev */
2893         //ixgbe_add_sanmac_netdev(netdev);
2894
2895 #endif /* (HAVE_NETDEV_STORAGE_ADDRESS) && (NETDEV_HW_ADDR_T_SAN) */
2896         e_info(probe, "Intel(R) 10 Gigabit Network Connection\n");
2897         cards_found++;
2898
2899 #ifdef IXGBE_SYSFS
2900         //if (ixgbe_sysfs_init(adapter))
2901         //      e_err(probe, "failed to allocate sysfs resources\n");
2902 #else
2903 #ifdef IXGBE_PROCFS
2904         //if (ixgbe_procfs_init(adapter))
2905         //      e_err(probe, "failed to allocate procfs resources\n");
2906 #endif /* IXGBE_PROCFS */
2907 #endif /* IXGBE_SYSFS */
2908
2909         return 0;
2910
2911 //err_register:
2912         //ixgbe_clear_interrupt_scheme(adapter);
2913         //ixgbe_release_hw_control(adapter);
2914 err_sw_init:
2915         adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP;
2916         if (adapter->mac_table)
2917                 kfree(adapter->mac_table);
2918         iounmap(hw->hw_addr);
2919 err_ioremap:
2920         free_netdev(netdev);
2921 err_alloc_etherdev:
2922         //pci_release_selected_regions(pdev,
2923         //                           pci_select_bars(pdev, IORESOURCE_MEM));
2924 //err_pci_reg:
2925 //err_dma:
2926         pci_disable_device(pdev);
2927         return err;
2928 }
2929
2930 /**
2931  * ixgbe_remove - Device Removal Routine
2932  * @pdev: PCI device information struct
2933  *
2934  * ixgbe_remove is called by the PCI subsystem to alert the driver
2935  * that it should release a PCI device.  The could be caused by a
2936  * Hot-Plug event, or because the driver is going to be removed from
2937  * memory.
2938  **/
2939 void ixgbe_kni_remove(struct pci_dev *pdev)
2940 {
2941         pci_disable_device(pdev);
2942 }
2943
2944
2945 u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg)
2946 {
2947         u16 value;
2948         struct ixgbe_adapter *adapter = hw->back;
2949
2950         pci_read_config_word(adapter->pdev, reg, &value);
2951         return value;
2952 }
2953
2954 void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value)
2955 {
2956         struct ixgbe_adapter *adapter = hw->back;
2957
2958         pci_write_config_word(adapter->pdev, reg, value);
2959 }
2960
2961 void ewarn(struct ixgbe_hw *hw, const char *st, u32 status)
2962 {
2963         struct ixgbe_adapter *adapter = hw->back;
2964
2965         netif_warn(adapter, drv, adapter->netdev,  "%s", st);
2966 }