drivers/net/ixgbe/ixgbe_sriov.c

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2011 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 #include <linux/types.h>
  29 #include <linux/module.h>
  30 #include <linux/pci.h>
  31 #include <linux/netdevice.h>
  32 #include <linux/vmalloc.h>
  33 #include <linux/string.h>
  34 #include <linux/in.h>
  35 #include <linux/ip.h>
  36 #include <linux/tcp.h>
  37 #include <linux/ipv6.h>
  38 #ifdef NETIF_F_HW_VLAN_TX
  39 #include <linux/if_vlan.h>
  40 #endif
  41
  42 #include "ixgbe.h"
  43
  44 #include "ixgbe_sriov.h"
  45
  46 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
  47                                    int entries, u16 *hash_list, u32 vf)
  48 {
  49         struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
  50         struct ixgbe_hw *hw = &adapter->hw;
  51         int i;
  52         u32 vector_bit;
  53         u32 vector_reg;
  54         u32 mta_reg;
  55
  56         /* only so many hash values supported */
  57         entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
  58
  59         /*
  60          * salt away the number of multi cast addresses assigned
  61          * to this VF for later use to restore when the PF multi cast
  62          * list changes
  63          */
  64         vfinfo->num_vf_mc_hashes = entries;
  65
  66         /*
  67          * VFs are limited to using the MTA hash table for their multicast
  68          * addresses
  69          */
  70         for (i = 0; i < entries; i++) {
  71                 vfinfo->vf_mc_hashes[i] = hash_list[i];
  72         }
  73
  74         for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
  75                 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
  76                 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
  77                 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
  78                 mta_reg |= (1 << vector_bit);
  79                 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
  80         }
  81
  82         return 0;
  83 }
  84
  85 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
  86 {
  87         struct ixgbe_hw *hw = &adapter->hw;
  88         struct vf_data_storage *vfinfo;
  89         int i, j;
  90         u32 vector_bit;
  91         u32 vector_reg;
  92         u32 mta_reg;
  93
  94         for (i = 0; i < adapter->num_vfs; i++) {
  95                 vfinfo = &adapter->vfinfo[i];
  96                 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
  97                         hw->addr_ctrl.mta_in_use++;
  98                         vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
  99                         vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
 100                         mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
 101                         mta_reg |= (1 << vector_bit);
 102                         IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
 103                 }
 104         }
 105 }
 106
 107 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
 108                              u32 vf)
 109 {
 110         return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
 111 }
 112
 113 void ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf)
 114 {
 115         struct ixgbe_hw *hw = &adapter->hw;
 116         int new_mtu = msgbuf[1];
 117         u32 max_frs;
 118         int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 119
 120         /* Only X540 supports jumbo frames in IOV mode */
 121         if (adapter->hw.mac.type != ixgbe_mac_X540)
 122                 return;
 123
 124         /* MTU < 68 is an error and causes problems on some kernels */
 125         if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) {
 126                 e_err(drv, "VF mtu %d out of range\n", new_mtu);
 127                 return;
 128         }
 129
 130         max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
 131                    IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
 132         if (max_frs < new_mtu) {
 133                 max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
 134                 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
 135         }
 136
 137         e_info(hw, "VF requests change max MTU to %d\n", new_mtu);
 138 }
 139
 140 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
 141 {
 142         u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
 143         vmolr |= (IXGBE_VMOLR_ROMPE |
 144                   IXGBE_VMOLR_BAM);
 145         if (aupe)
 146                 vmolr |= IXGBE_VMOLR_AUPE;
 147         else
 148                 vmolr &= ~IXGBE_VMOLR_AUPE;
 149         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
 150 }
 151
 152 static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf)
 153 {
 154         struct ixgbe_hw *hw = &adapter->hw;
 155
 156         if (vid)
 157                 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf),
 158                                 (vid | IXGBE_VMVIR_VLANA_DEFAULT));
 159         else
 160                 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
 161 }
 162
 163 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
 164 {
 165         struct ixgbe_hw *hw = &adapter->hw;
 166         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
 167
 168         /* reset offloads to defaults */
 169         if (adapter->vfinfo[vf].pf_vlan) {
 170                 ixgbe_set_vf_vlan(adapter, true,
 171                                   adapter->vfinfo[vf].pf_vlan, vf);
 172                 ixgbe_set_vmvir(adapter,
 173                                 (adapter->vfinfo[vf].pf_vlan |
 174                                  (adapter->vfinfo[vf].pf_qos <<
 175                                   VLAN_PRIO_SHIFT)), vf);
 176                 ixgbe_set_vmolr(hw, vf, false);
 177         } else {
 178                 ixgbe_set_vmvir(adapter, 0, vf);
 179                 ixgbe_set_vmolr(hw, vf, true);
 180         }
 181
 182         /* reset multicast table array for vf */
 183         adapter->vfinfo[vf].num_vf_mc_hashes = 0;
 184
 185         /* Flush and reset the mta with the new values */
 186         ixgbe_set_rx_mode(adapter->netdev);
 187
 188         hw->mac.ops.clear_rar(hw, rar_entry);
 189 }
 190
 191 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
 192                             int vf, unsigned char *mac_addr)
 193 {
 194         struct ixgbe_hw *hw = &adapter->hw;
 195         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
 196
 197         memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
 198         hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
 199
 200         return 0;
 201 }
 202
 203 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
 204 {
 205         unsigned char vf_mac_addr[6];
 206         struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
 207         unsigned int vfn = (event_mask & 0x3f);
 208
 209         bool enable = ((event_mask & 0x10000000U) != 0);
 210
 211         if (enable) {
 212                 random_ether_addr(vf_mac_addr);
 213                 e_info(probe, "IOV: VF %d is enabled MAC %pM\n",
 214                        vfn, vf_mac_addr);
 215                 /*
 216                  * Store away the VF "permananet" MAC address, it will ask
 217                  * for it later.
 218                  */
 219                 memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
 220         }
 221
 222         return 0;
 223 }
 224
 225 static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
 226 {
 227         struct ixgbe_hw *hw = &adapter->hw;
 228         u32 reg;
 229         u32 reg_offset, vf_shift;
 230
 231         vf_shift = vf % 32;
 232         reg_offset = vf / 32;
 233
 234         /* enable transmit and receive for vf */
 235         reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
 236         reg |= (reg | (1 << vf_shift));
 237         IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
 238
 239         reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
 240         reg |= (reg | (1 << vf_shift));
 241         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
 242
 243         /* Enable counting of spoofed packets in the SSVPC register */
 244         reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
 245         reg |= (1 << vf_shift);
 246         IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
 247
 248         ixgbe_vf_reset_event(adapter, vf);
 249 }
 250
 251 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
 252 {
 253         u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
 254         u32 msgbuf[mbx_size];
 255         struct ixgbe_hw *hw = &adapter->hw;
 256         s32 retval;
 257         int entries;
 258         u16 *hash_list;
 259         int add, vid;
 260         u8 *new_mac;
 261
 262         retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
 263
 264         if (retval)
 265                 pr_err("Error receiving message from VF\n");
 266
 267         /* this is a message we already processed, do nothing */
 268         if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
 269                 return retval;
 270
 271         /*
 272          * until the vf completes a virtual function reset it should not be
 273          * allowed to start any configuration.
 274          */
 275
 276         if (msgbuf[0] == IXGBE_VF_RESET) {
 277                 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
 278                 new_mac = (u8 *)(&msgbuf[1]);
 279                 e_info(probe, "VF Reset msg received from vf %d\n", vf);
 280                 adapter->vfinfo[vf].clear_to_send = false;
 281                 ixgbe_vf_reset_msg(adapter, vf);
 282                 adapter->vfinfo[vf].clear_to_send = true;
 283
 284                 if (is_valid_ether_addr(new_mac) &&
 285                     !adapter->vfinfo[vf].pf_set_mac)
 286                         ixgbe_set_vf_mac(adapter, vf, vf_mac);
 287                 else
 288                         ixgbe_set_vf_mac(adapter,
 289                                  vf, adapter->vfinfo[vf].vf_mac_addresses);
 290
 291                 /* reply to reset with ack and vf mac address */
 292                 msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
 293                 memcpy(new_mac, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS);
 294                 /*
 295                  * Piggyback the multicast filter type so VF can compute the
 296                  * correct vectors
 297                  */
 298                 msgbuf[3] = hw->mac.mc_filter_type;
 299                 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
 300
 301                 return retval;
 302         }
 303
 304         if (!adapter->vfinfo[vf].clear_to_send) {
 305                 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
 306                 ixgbe_write_mbx(hw, msgbuf, 1, vf);
 307                 return retval;
 308         }
 309
 310         switch ((msgbuf[0] & 0xFFFF)) {
 311         case IXGBE_VF_SET_MAC_ADDR:
 312                 new_mac = ((u8 *)(&msgbuf[1]));
 313                 if (is_valid_ether_addr(new_mac) &&
 314                     !adapter->vfinfo[vf].pf_set_mac) {
 315                         ixgbe_set_vf_mac(adapter, vf, new_mac);
 316                 } else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses,
 317                                   new_mac, ETH_ALEN)) {
 318                         e_warn(drv, "VF %d attempted to override "
 319                                "administratively set MAC address\nReload "
 320                                "the VF driver to resume operations\n", vf);
 321                         retval = -1;
 322                 }
 323                 break;
 324         case IXGBE_VF_SET_MULTICAST:
 325                 entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
 326                           >> IXGBE_VT_MSGINFO_SHIFT;
 327                 hash_list = (u16 *)&msgbuf[1];
 328                 retval = ixgbe_set_vf_multicasts(adapter, entries,
 329                                                  hash_list, vf);
 330                 break;
 331         case IXGBE_VF_SET_LPE:
 332                 ixgbe_set_vf_lpe(adapter, msgbuf);
 333                 break;
 334         case IXGBE_VF_SET_VLAN:
 335                 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
 336                       >> IXGBE_VT_MSGINFO_SHIFT;
 337                 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
 338                 if (adapter->vfinfo[vf].pf_vlan) {
 339                         e_warn(drv, "VF %d attempted to override "
 340                                "administratively set VLAN configuration\n"
 341                                "Reload the VF driver to resume operations\n",
 342                                vf);
 343                         retval = -1;
 344                 } else {
 345                         retval = ixgbe_set_vf_vlan(adapter, add, vid, vf);
 346                 }
 347                 break;
 348         default:
 349                 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
 350                 retval = IXGBE_ERR_MBX;
 351                 break;
 352         }
 353
 354         /* notify the VF of the results of what it sent us */
 355         if (retval)
 356                 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
 357         else
 358                 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
 359
 360         msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
 361
 362         ixgbe_write_mbx(hw, msgbuf, 1, vf);
 363
 364         return retval;
 365 }
 366
 367 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
 368 {
 369         struct ixgbe_hw *hw = &adapter->hw;
 370         u32 msg = IXGBE_VT_MSGTYPE_NACK;
 371
 372         /* if device isn't clear to send it shouldn't be reading either */
 373         if (!adapter->vfinfo[vf].clear_to_send)
 374                 ixgbe_write_mbx(hw, &msg, 1, vf);
 375 }
 376
 377 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
 378 {
 379         struct ixgbe_hw *hw = &adapter->hw;
 380         u32 vf;
 381
 382         for (vf = 0; vf < adapter->num_vfs; vf++) {
 383                 /* process any reset requests */
 384                 if (!ixgbe_check_for_rst(hw, vf))
 385                         ixgbe_vf_reset_event(adapter, vf);
 386
 387                 /* process any messages pending */
 388                 if (!ixgbe_check_for_msg(hw, vf))
 389                         ixgbe_rcv_msg_from_vf(adapter, vf);
 390
 391                 /* process any acks */
 392                 if (!ixgbe_check_for_ack(hw, vf))
 393                         ixgbe_rcv_ack_from_vf(adapter, vf);
 394         }
 395 }
 396
 397 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
 398 {
 399         struct ixgbe_hw *hw = &adapter->hw;
 400
 401         /* disable transmit and receive for all vfs */
 402         IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
 403         IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
 404
 405         IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
 406         IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
 407 }
 408
 409 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
 410 {
 411         struct ixgbe_hw *hw = &adapter->hw;
 412         u32 ping;
 413         int i;
 414
 415         for (i = 0 ; i < adapter->num_vfs; i++) {
 416                 ping = IXGBE_PF_CONTROL_MSG;
 417                 if (adapter->vfinfo[i].clear_to_send)
 418                         ping |= IXGBE_VT_MSGTYPE_CTS;
 419                 ixgbe_write_mbx(hw, &ping, 1, i);
 420         }
 421 }
 422
 423 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 424 {
 425         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 426         if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
 427                 return -EINVAL;
 428         adapter->vfinfo[vf].pf_set_mac = true;
 429         dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
 430         dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
 431                                       " change effective.");
 432         if (test_bit(__IXGBE_DOWN, &adapter->state)) {
 433                 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
 434                          " but the PF device is not up.\n");
 435                 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
 436                          " attempting to use the VF device.\n");
 437         }
 438         return ixgbe_set_vf_mac(adapter, vf, mac);
 439 }
 440
 441 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
 442 {
 443         int err = 0;
 444         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 445         struct ixgbe_hw *hw = &adapter->hw;
 446
 447         if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
 448                 return -EINVAL;
 449         if (vlan || qos) {
 450                 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
 451                 if (err)
 452                         goto out;
 453                 ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf);
 454                 ixgbe_set_vmolr(hw, vf, false);
 455                 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
 456                 adapter->vfinfo[vf].pf_vlan = vlan;
 457                 adapter->vfinfo[vf].pf_qos = qos;
 458                 dev_info(&adapter->pdev->dev,
 459                          "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
 460                 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
 461                         dev_warn(&adapter->pdev->dev,
 462                                  "The VF VLAN has been set,"
 463                                  " but the PF device is not up.\n");
 464                         dev_warn(&adapter->pdev->dev,
 465                                  "Bring the PF device up before"
 466                                  " attempting to use the VF device.\n");
 467                 }
 468         } else {
 469                 err = ixgbe_set_vf_vlan(adapter, false,
 470                                         adapter->vfinfo[vf].pf_vlan, vf);
 471                 ixgbe_set_vmvir(adapter, vlan, vf);
 472                 ixgbe_set_vmolr(hw, vf, true);
 473                 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
 474                 adapter->vfinfo[vf].pf_vlan = 0;
 475                 adapter->vfinfo[vf].pf_qos = 0;
 476        }
 477 out:
 478        return err;
 479 }
 480
 481 static int ixgbe_link_mbps(int internal_link_speed)
 482 {
 483         switch (internal_link_speed) {
 484         case IXGBE_LINK_SPEED_100_FULL:
 485                 return 100;
 486         case IXGBE_LINK_SPEED_1GB_FULL:
 487                 return 1000;
 488         case IXGBE_LINK_SPEED_10GB_FULL:
 489                 return 10000;
 490         default:
 491                 return 0;
 492         }
 493 }
 494
 495 static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
 496                                     int link_speed)
 497 {
 498         int rf_dec, rf_int;
 499         u32 bcnrc_val;
 500
 501         if (tx_rate != 0) {
 502                 /* Calculate the rate factor values to set */
 503                 rf_int = link_speed / tx_rate;
 504                 rf_dec = (link_speed - (rf_int * tx_rate));
 505                 rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate;
 506
 507                 bcnrc_val = IXGBE_RTTBCNRC_RS_ENA;
 508                 bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) &
 509                                IXGBE_RTTBCNRC_RF_INT_MASK);
 510                 bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK);
 511         } else {
 512                 bcnrc_val = 0;
 513         }
 514
 515         IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */
 516         IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
 517 }
 518
 519 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
 520 {
 521         int actual_link_speed, i;
 522         bool reset_rate = false;
 523
 524         /* VF Tx rate limit was not set */
 525         if (adapter->vf_rate_link_speed == 0)
 526                 return;
 527
 528         actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
 529         if (actual_link_speed != adapter->vf_rate_link_speed) {
 530                 reset_rate = true;
 531                 adapter->vf_rate_link_speed = 0;
 532                 dev_info(&adapter->pdev->dev,
 533                          "Link speed has been changed. VF Transmit rate "
 534                          "is disabled\n");
 535         }
 536
 537         for (i = 0; i < adapter->num_vfs; i++) {
 538                 if (reset_rate)
 539                         adapter->vfinfo[i].tx_rate = 0;
 540
 541                 ixgbe_set_vf_rate_limit(&adapter->hw, i,
 542                                         adapter->vfinfo[i].tx_rate,
 543                                         actual_link_speed);
 544         }
 545 }
 546
 547 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
 548 {
 549         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 550         struct ixgbe_hw *hw = &adapter->hw;
 551         int actual_link_speed;
 552
 553         actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
 554         if ((vf >= adapter->num_vfs) || (!adapter->link_up) ||
 555             (tx_rate > actual_link_speed) || (actual_link_speed != 10000) ||
 556             ((tx_rate != 0) && (tx_rate <= 10)))
 557             /* rate limit cannot be set to 10Mb or less in 10Gb adapters */
 558                 return -EINVAL;
 559
 560         adapter->vf_rate_link_speed = actual_link_speed;
 561         adapter->vfinfo[vf].tx_rate = (u16)tx_rate;
 562         ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed);
 563
 564         return 0;
 565 }
 566
 567 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
 568                             int vf, struct ifla_vf_info *ivi)
 569 {
 570         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 571         if (vf >= adapter->num_vfs)
 572                 return -EINVAL;
 573         ivi->vf = vf;
 574         memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
 575         ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
 576         ivi->vlan = adapter->vfinfo[vf].pf_vlan;
 577         ivi->qos = adapter->vfinfo[vf].pf_qos;
 578         return 0;
 579 }