drivers/net/ethernet/intel/ixgbevf/vf.c

   1 /*******************************************************************************
   2
   3   Intel 82599 Virtual Function driver
   4   Copyright(c) 1999 - 2015 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, see <http://www.gnu.org/licenses/>.
  17
  18   The full GNU General Public License is included in this distribution in
  19   the file called "COPYING".
  20
  21   Contact Information:
  22   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24
  25 *******************************************************************************/
  26
  27 #include "vf.h"
  28 #include "ixgbevf.h"
  29
  30 /**
  31  *  ixgbevf_start_hw_vf - Prepare hardware for Tx/Rx
  32  *  @hw: pointer to hardware structure
  33  *
  34  *  Starts the hardware by filling the bus info structure and media type, clears
  35  *  all on chip counters, initializes receive address registers, multicast
  36  *  table, VLAN filter table, calls routine to set up link and flow control
  37  *  settings, and leaves transmit and receive units disabled and uninitialized
  38  **/
  39 static s32 ixgbevf_start_hw_vf(struct ixgbe_hw *hw)
  40 {
  41         /* Clear adapter stopped flag */
  42         hw->adapter_stopped = false;
  43
  44         return 0;
  45 }
  46
  47 /**
  48  *  ixgbevf_init_hw_vf - virtual function hardware initialization
  49  *  @hw: pointer to hardware structure
  50  *
  51  *  Initialize the hardware by resetting the hardware and then starting
  52  *  the hardware
  53  **/
  54 static s32 ixgbevf_init_hw_vf(struct ixgbe_hw *hw)
  55 {
  56         s32 status = hw->mac.ops.start_hw(hw);
  57
  58         hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
  59
  60         return status;
  61 }
  62
  63 /**
  64  *  ixgbevf_reset_hw_vf - Performs hardware reset
  65  *  @hw: pointer to hardware structure
  66  *
  67  *  Resets the hardware by resetting the transmit and receive units, masks and
  68  *  clears all interrupts.
  69  **/
  70 static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
  71 {
  72         struct ixgbe_mbx_info *mbx = &hw->mbx;
  73         u32 timeout = IXGBE_VF_INIT_TIMEOUT;
  74         s32 ret_val = IXGBE_ERR_INVALID_MAC_ADDR;
  75         u32 msgbuf[IXGBE_VF_PERMADDR_MSG_LEN];
  76         u8 *addr = (u8 *)(&msgbuf[1]);
  77
  78         /* Call adapter stop to disable tx/rx and clear interrupts */
  79         hw->mac.ops.stop_adapter(hw);
  80
  81         /* reset the api version */
  82         hw->api_version = ixgbe_mbox_api_10;
  83
  84         IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
  85         IXGBE_WRITE_FLUSH(hw);
  86
  87         /* we cannot reset while the RSTI / RSTD bits are asserted */
  88         while (!mbx->ops.check_for_rst(hw) && timeout) {
  89                 timeout--;
  90                 udelay(5);
  91         }
  92
  93         if (!timeout)
  94                 return IXGBE_ERR_RESET_FAILED;
  95
  96         /* mailbox timeout can now become active */
  97         mbx->timeout = IXGBE_VF_MBX_INIT_TIMEOUT;
  98
  99         msgbuf[0] = IXGBE_VF_RESET;
 100         mbx->ops.write_posted(hw, msgbuf, 1);
 101
 102         mdelay(10);
 103
 104         /* set our "perm_addr" based on info provided by PF
 105          * also set up the mc_filter_type which is piggy backed
 106          * on the mac address in word 3
 107          */
 108         ret_val = mbx->ops.read_posted(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN);
 109         if (ret_val)
 110                 return ret_val;
 111
 112         /* New versions of the PF may NACK the reset return message
 113          * to indicate that no MAC address has yet been assigned for
 114          * the VF.
 115          */
 116         if (msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK) &&
 117             msgbuf[0] != (IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_NACK))
 118                 return IXGBE_ERR_INVALID_MAC_ADDR;
 119
 120         ether_addr_copy(hw->mac.perm_addr, addr);
 121         hw->mac.mc_filter_type = msgbuf[IXGBE_VF_MC_TYPE_WORD];
 122
 123         return 0;
 124 }
 125
 126 /**
 127  *  ixgbevf_stop_hw_vf - Generic stop Tx/Rx units
 128  *  @hw: pointer to hardware structure
 129  *
 130  *  Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts,
 131  *  disables transmit and receive units. The adapter_stopped flag is used by
 132  *  the shared code and drivers to determine if the adapter is in a stopped
 133  *  state and should not touch the hardware.
 134  **/
 135 static s32 ixgbevf_stop_hw_vf(struct ixgbe_hw *hw)
 136 {
 137         u32 number_of_queues;
 138         u32 reg_val;
 139         u16 i;
 140
 141         /* Set the adapter_stopped flag so other driver functions stop touching
 142          * the hardware
 143          */
 144         hw->adapter_stopped = true;
 145
 146         /* Disable the receive unit by stopped each queue */
 147         number_of_queues = hw->mac.max_rx_queues;
 148         for (i = 0; i < number_of_queues; i++) {
 149                 reg_val = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
 150                 if (reg_val & IXGBE_RXDCTL_ENABLE) {
 151                         reg_val &= ~IXGBE_RXDCTL_ENABLE;
 152                         IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), reg_val);
 153                 }
 154         }
 155
 156         IXGBE_WRITE_FLUSH(hw);
 157
 158         /* Clear interrupt mask to stop from interrupts being generated */
 159         IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, IXGBE_VF_IRQ_CLEAR_MASK);
 160
 161         /* Clear any pending interrupts */
 162         IXGBE_READ_REG(hw, IXGBE_VTEICR);
 163
 164         /* Disable the transmit unit.  Each queue must be disabled. */
 165         number_of_queues = hw->mac.max_tx_queues;
 166         for (i = 0; i < number_of_queues; i++) {
 167                 reg_val = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
 168                 if (reg_val & IXGBE_TXDCTL_ENABLE) {
 169                         reg_val &= ~IXGBE_TXDCTL_ENABLE;
 170                         IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), reg_val);
 171                 }
 172         }
 173
 174         return 0;
 175 }
 176
 177 /**
 178  *  ixgbevf_mta_vector - Determines bit-vector in multicast table to set
 179  *  @hw: pointer to hardware structure
 180  *  @mc_addr: the multicast address
 181  *
 182  *  Extracts the 12 bits, from a multicast address, to determine which
 183  *  bit-vector to set in the multicast table. The hardware uses 12 bits, from
 184  *  incoming Rx multicast addresses, to determine the bit-vector to check in
 185  *  the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set
 186  *  by the MO field of the MCSTCTRL. The MO field is set during initialization
 187  *  to mc_filter_type.
 188  **/
 189 static s32 ixgbevf_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr)
 190 {
 191         u32 vector = 0;
 192
 193         switch (hw->mac.mc_filter_type) {
 194         case 0:   /* use bits [47:36] of the address */
 195                 vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4));
 196                 break;
 197         case 1:   /* use bits [46:35] of the address */
 198                 vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5));
 199                 break;
 200         case 2:   /* use bits [45:34] of the address */
 201                 vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6));
 202                 break;
 203         case 3:   /* use bits [43:32] of the address */
 204                 vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8));
 205                 break;
 206         default:  /* Invalid mc_filter_type */
 207                 break;
 208         }
 209
 210         /* vector can only be 12-bits or boundary will be exceeded */
 211         vector &= 0xFFF;
 212         return vector;
 213 }
 214
 215 /**
 216  *  ixgbevf_get_mac_addr_vf - Read device MAC address
 217  *  @hw: pointer to the HW structure
 218  *  @mac_addr: pointer to storage for retrieved MAC address
 219  **/
 220 static s32 ixgbevf_get_mac_addr_vf(struct ixgbe_hw *hw, u8 *mac_addr)
 221 {
 222         ether_addr_copy(mac_addr, hw->mac.perm_addr);
 223
 224         return 0;
 225 }
 226
 227 static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
 228 {
 229         struct ixgbe_mbx_info *mbx = &hw->mbx;
 230         u32 msgbuf[3];
 231         u8 *msg_addr = (u8 *)(&msgbuf[1]);
 232         s32 ret_val;
 233
 234         memset(msgbuf, 0, sizeof(msgbuf));
 235         /* If index is one then this is the start of a new list and needs
 236          * indication to the PF so it can do it's own list management.
 237          * If it is zero then that tells the PF to just clear all of
 238          * this VF's macvlans and there is no new list.
 239          */
 240         msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
 241         msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
 242         if (addr)
 243                 ether_addr_copy(msg_addr, addr);
 244         ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
 245
 246         if (!ret_val)
 247                 ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
 248
 249         msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
 250
 251         if (!ret_val)
 252                 if (msgbuf[0] ==
 253                     (IXGBE_VF_SET_MACVLAN | IXGBE_VT_MSGTYPE_NACK))
 254                         ret_val = -ENOMEM;
 255
 256         return ret_val;
 257 }
 258
 259 /**
 260  *  ixgbevf_set_rar_vf - set device MAC address
 261  *  @hw: pointer to hardware structure
 262  *  @index: Receive address register to write
 263  *  @addr: Address to put into receive address register
 264  *  @vmdq: Unused in this implementation
 265  **/
 266 static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
 267                               u32 vmdq)
 268 {
 269         struct ixgbe_mbx_info *mbx = &hw->mbx;
 270         u32 msgbuf[3];
 271         u8 *msg_addr = (u8 *)(&msgbuf[1]);
 272         s32 ret_val;
 273
 274         memset(msgbuf, 0, sizeof(msgbuf));
 275         msgbuf[0] = IXGBE_VF_SET_MAC_ADDR;
 276         ether_addr_copy(msg_addr, addr);
 277         ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
 278
 279         if (!ret_val)
 280                 ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
 281
 282         msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
 283
 284         /* if nacked the address was rejected, use "perm_addr" */
 285         if (!ret_val &&
 286             (msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK)))
 287                 ixgbevf_get_mac_addr_vf(hw, hw->mac.addr);
 288
 289         return ret_val;
 290 }
 291
 292 static void ixgbevf_write_msg_read_ack(struct ixgbe_hw *hw,
 293                                        u32 *msg, u16 size)
 294 {
 295         struct ixgbe_mbx_info *mbx = &hw->mbx;
 296         u32 retmsg[IXGBE_VFMAILBOX_SIZE];
 297         s32 retval = mbx->ops.write_posted(hw, msg, size);
 298
 299         if (!retval)
 300                 mbx->ops.read_posted(hw, retmsg, size);
 301 }
 302
 303 /**
 304  *  ixgbevf_update_mc_addr_list_vf - Update Multicast addresses
 305  *  @hw: pointer to the HW structure
 306  *  @netdev: pointer to net device structure
 307  *
 308  *  Updates the Multicast Table Array.
 309  **/
 310 static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
 311                                           struct net_device *netdev)
 312 {
 313         struct netdev_hw_addr *ha;
 314         u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
 315         u16 *vector_list = (u16 *)&msgbuf[1];
 316         u32 cnt, i;
 317
 318         /* Each entry in the list uses 1 16 bit word.  We have 30
 319          * 16 bit words available in our HW msg buffer (minus 1 for the
 320          * msg type).  That's 30 hash values if we pack 'em right.  If
 321          * there are more than 30 MC addresses to add then punt the
 322          * extras for now and then add code to handle more than 30 later.
 323          * It would be unusual for a server to request that many multi-cast
 324          * addresses except for in large enterprise network environments.
 325          */
 326
 327         cnt = netdev_mc_count(netdev);
 328         if (cnt > 30)
 329                 cnt = 30;
 330         msgbuf[0] = IXGBE_VF_SET_MULTICAST;
 331         msgbuf[0] |= cnt << IXGBE_VT_MSGINFO_SHIFT;
 332
 333         i = 0;
 334         netdev_for_each_mc_addr(ha, netdev) {
 335                 if (i == cnt)
 336                         break;
 337                 if (is_link_local_ether_addr(ha->addr))
 338                         continue;
 339
 340                 vector_list[i++] = ixgbevf_mta_vector(hw, ha->addr);
 341         }
 342
 343         ixgbevf_write_msg_read_ack(hw, msgbuf, IXGBE_VFMAILBOX_SIZE);
 344
 345         return 0;
 346 }
 347
 348 /**
 349  *  ixgbevf_set_vfta_vf - Set/Unset VLAN filter table address
 350  *  @hw: pointer to the HW structure
 351  *  @vlan: 12 bit VLAN ID
 352  *  @vind: unused by VF drivers
 353  *  @vlan_on: if true then set bit, else clear bit
 354  **/
 355 static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
 356                                bool vlan_on)
 357 {
 358         struct ixgbe_mbx_info *mbx = &hw->mbx;
 359         u32 msgbuf[2];
 360         s32 err;
 361
 362         msgbuf[0] = IXGBE_VF_SET_VLAN;
 363         msgbuf[1] = vlan;
 364         /* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
 365         msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
 366
 367         err = mbx->ops.write_posted(hw, msgbuf, 2);
 368         if (err)
 369                 goto mbx_err;
 370
 371         err = mbx->ops.read_posted(hw, msgbuf, 2);
 372         if (err)
 373                 goto mbx_err;
 374
 375         /* remove extra bits from the message */
 376         msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
 377         msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
 378
 379         if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
 380                 err = IXGBE_ERR_INVALID_ARGUMENT;
 381
 382 mbx_err:
 383         return err;
 384 }
 385
 386 /**
 387  *  ixgbevf_setup_mac_link_vf - Setup MAC link settings
 388  *  @hw: pointer to hardware structure
 389  *  @speed: Unused in this implementation
 390  *  @autoneg: Unused in this implementation
 391  *  @autoneg_wait_to_complete: Unused in this implementation
 392  *
 393  *  Do nothing and return success.  VF drivers are not allowed to change
 394  *  global settings.  Maintained for driver compatibility.
 395  **/
 396 static s32 ixgbevf_setup_mac_link_vf(struct ixgbe_hw *hw,
 397                                      ixgbe_link_speed speed, bool autoneg,
 398                                      bool autoneg_wait_to_complete)
 399 {
 400         return 0;
 401 }
 402
 403 /**
 404  *  ixgbevf_check_mac_link_vf - Get link/speed status
 405  *  @hw: pointer to hardware structure
 406  *  @speed: pointer to link speed
 407  *  @link_up: true is link is up, false otherwise
 408  *  @autoneg_wait_to_complete: true when waiting for completion is needed
 409  *
 410  *  Reads the links register to determine if link is up and the current speed
 411  **/
 412 static s32 ixgbevf_check_mac_link_vf(struct ixgbe_hw *hw,
 413                                      ixgbe_link_speed *speed,
 414                                      bool *link_up,
 415                                      bool autoneg_wait_to_complete)
 416 {
 417         struct ixgbe_mbx_info *mbx = &hw->mbx;
 418         struct ixgbe_mac_info *mac = &hw->mac;
 419         s32 ret_val = 0;
 420         u32 links_reg;
 421         u32 in_msg = 0;
 422
 423         /* If we were hit with a reset drop the link */
 424         if (!mbx->ops.check_for_rst(hw) || !mbx->timeout)
 425                 mac->get_link_status = true;
 426
 427         if (!mac->get_link_status)
 428                 goto out;
 429
 430         /* if link status is down no point in checking to see if pf is up */
 431         links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 432         if (!(links_reg & IXGBE_LINKS_UP))
 433                 goto out;
 434
 435         /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
 436          * before the link status is correct
 437          */
 438         if (mac->type == ixgbe_mac_82599_vf) {
 439                 int i;
 440
 441                 for (i = 0; i < 5; i++) {
 442                         udelay(100);
 443                         links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 444
 445                         if (!(links_reg & IXGBE_LINKS_UP))
 446                                 goto out;
 447                 }
 448         }
 449
 450         switch (links_reg & IXGBE_LINKS_SPEED_82599) {
 451         case IXGBE_LINKS_SPEED_10G_82599:
 452                 *speed = IXGBE_LINK_SPEED_10GB_FULL;
 453                 break;
 454         case IXGBE_LINKS_SPEED_1G_82599:
 455                 *speed = IXGBE_LINK_SPEED_1GB_FULL;
 456                 break;
 457         case IXGBE_LINKS_SPEED_100_82599:
 458                 *speed = IXGBE_LINK_SPEED_100_FULL;
 459                 break;
 460         }
 461
 462         /* if the read failed it could just be a mailbox collision, best wait
 463          * until we are called again and don't report an error
 464          */
 465         if (mbx->ops.read(hw, &in_msg, 1))
 466                 goto out;
 467
 468         if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
 469                 /* msg is not CTS and is NACK we must have lost CTS status */
 470                 if (in_msg & IXGBE_VT_MSGTYPE_NACK)
 471                         ret_val = -1;
 472                 goto out;
 473         }
 474
 475         /* the pf is talking, if we timed out in the past we reinit */
 476         if (!mbx->timeout) {
 477                 ret_val = -1;
 478                 goto out;
 479         }
 480
 481         /* if we passed all the tests above then the link is up and we no
 482          * longer need to check for link
 483          */
 484         mac->get_link_status = false;
 485
 486 out:
 487         *link_up = !mac->get_link_status;
 488         return ret_val;
 489 }
 490
 491 /**
 492  *  ixgbevf_rlpml_set_vf - Set the maximum receive packet length
 493  *  @hw: pointer to the HW structure
 494  *  @max_size: value to assign to max frame size
 495  **/
 496 void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
 497 {
 498         u32 msgbuf[2];
 499
 500         msgbuf[0] = IXGBE_VF_SET_LPE;
 501         msgbuf[1] = max_size;
 502         ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
 503 }
 504
 505 /**
 506  *  ixgbevf_negotiate_api_version - Negotiate supported API version
 507  *  @hw: pointer to the HW structure
 508  *  @api: integer containing requested API version
 509  **/
 510 int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
 511 {
 512         int err;
 513         u32 msg[3];
 514
 515         /* Negotiate the mailbox API version */
 516         msg[0] = IXGBE_VF_API_NEGOTIATE;
 517         msg[1] = api;
 518         msg[2] = 0;
 519         err = hw->mbx.ops.write_posted(hw, msg, 3);
 520
 521         if (!err)
 522                 err = hw->mbx.ops.read_posted(hw, msg, 3);
 523
 524         if (!err) {
 525                 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
 526
 527                 /* Store value and return 0 on success */
 528                 if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
 529                         hw->api_version = api;
 530                         return 0;
 531                 }
 532
 533                 err = IXGBE_ERR_INVALID_ARGUMENT;
 534         }
 535
 536         return err;
 537 }
 538
 539 int ixgbevf_get_queues(struct ixgbe_hw *hw, unsigned int *num_tcs,
 540                        unsigned int *default_tc)
 541 {
 542         int err;
 543         u32 msg[5];
 544
 545         /* do nothing if API doesn't support ixgbevf_get_queues */
 546         switch (hw->api_version) {
 547         case ixgbe_mbox_api_11:
 548                 break;
 549         default:
 550                 return 0;
 551         }
 552
 553         /* Fetch queue configuration from the PF */
 554         msg[0] = IXGBE_VF_GET_QUEUE;
 555         msg[1] = msg[2] = msg[3] = msg[4] = 0;
 556         err = hw->mbx.ops.write_posted(hw, msg, 5);
 557
 558         if (!err)
 559                 err = hw->mbx.ops.read_posted(hw, msg, 5);
 560
 561         if (!err) {
 562                 msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
 563
 564                 /* if we we didn't get an ACK there must have been
 565                  * some sort of mailbox error so we should treat it
 566                  * as such
 567                  */
 568                 if (msg[0] != (IXGBE_VF_GET_QUEUE | IXGBE_VT_MSGTYPE_ACK))
 569                         return IXGBE_ERR_MBX;
 570
 571                 /* record and validate values from message */
 572                 hw->mac.max_tx_queues = msg[IXGBE_VF_TX_QUEUES];
 573                 if (hw->mac.max_tx_queues == 0 ||
 574                     hw->mac.max_tx_queues > IXGBE_VF_MAX_TX_QUEUES)
 575                         hw->mac.max_tx_queues = IXGBE_VF_MAX_TX_QUEUES;
 576
 577                 hw->mac.max_rx_queues = msg[IXGBE_VF_RX_QUEUES];
 578                 if (hw->mac.max_rx_queues == 0 ||
 579                     hw->mac.max_rx_queues > IXGBE_VF_MAX_RX_QUEUES)
 580                         hw->mac.max_rx_queues = IXGBE_VF_MAX_RX_QUEUES;
 581
 582                 *num_tcs = msg[IXGBE_VF_TRANS_VLAN];
 583                 /* in case of unknown state assume we cannot tag frames */
 584                 if (*num_tcs > hw->mac.max_rx_queues)
 585                         *num_tcs = 1;
 586
 587                 *default_tc = msg[IXGBE_VF_DEF_QUEUE];
 588                 /* default to queue 0 on out-of-bounds queue number */
 589                 if (*default_tc >= hw->mac.max_tx_queues)
 590                         *default_tc = 0;
 591         }
 592
 593         return err;
 594 }
 595
 596 static const struct ixgbe_mac_operations ixgbevf_mac_ops = {
 597         .init_hw                = ixgbevf_init_hw_vf,
 598         .reset_hw               = ixgbevf_reset_hw_vf,
 599         .start_hw               = ixgbevf_start_hw_vf,
 600         .get_mac_addr           = ixgbevf_get_mac_addr_vf,
 601         .stop_adapter           = ixgbevf_stop_hw_vf,
 602         .setup_link             = ixgbevf_setup_mac_link_vf,
 603         .check_link             = ixgbevf_check_mac_link_vf,
 604         .set_rar                = ixgbevf_set_rar_vf,
 605         .update_mc_addr_list    = ixgbevf_update_mc_addr_list_vf,
 606         .set_uc_addr            = ixgbevf_set_uc_addr_vf,
 607         .set_vfta               = ixgbevf_set_vfta_vf,
 608 };
 609
 610 const struct ixgbevf_info ixgbevf_82599_vf_info = {
 611         .mac = ixgbe_mac_82599_vf,
 612         .mac_ops = &ixgbevf_mac_ops,
 613 };
 614
 615 const struct ixgbevf_info ixgbevf_X540_vf_info = {
 616         .mac = ixgbe_mac_X540_vf,
 617         .mac_ops = &ixgbevf_mac_ops,
 618 };
 619
 620 const struct ixgbevf_info ixgbevf_X550_vf_info = {
 621         .mac = ixgbe_mac_X550_vf,
 622         .mac_ops = &ixgbevf_mac_ops,
 623 };
 624
 625 const struct ixgbevf_info ixgbevf_X550EM_x_vf_info = {
 626         .mac = ixgbe_mac_X550EM_x_vf,
 627         .mac_ops = &ixgbevf_mac_ops,
 628 };