drivers/net/ixgbe/ixgbe_dcb_nl.c

   1 /*******************************************************************************
   2
   3   Intel 10 Gigabit PCI Express Linux driver
   4   Copyright(c) 1999 - 2009 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   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 #include "ixgbe.h"
  30 #include <linux/dcbnl.h>
  31 #include "ixgbe_dcb_82598.h"
  32 #include "ixgbe_dcb_82599.h"
  33
  34 /* Callbacks for DCB netlink in the kernel */
  35 #define BIT_DCB_MODE    0x01
  36 #define BIT_PFC         0x02
  37 #define BIT_PG_RX       0x04
  38 #define BIT_PG_TX       0x08
  39 #define BIT_RESETLINK   0x40
  40 #define BIT_LINKSPEED   0x80
  41
  42 /* Responses for the DCB_C_SET_ALL command */
  43 #define DCB_HW_CHG_RST  0  /* DCB configuration changed with reset */
  44 #define DCB_NO_HW_CHG   1  /* DCB configuration did not change */
  45 #define DCB_HW_CHG      2  /* DCB configuration changed, no reset */
  46
  47 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
  48                        struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
  49 {
  50         struct tc_configuration *src_tc_cfg = NULL;
  51         struct tc_configuration *dst_tc_cfg = NULL;
  52         int i;
  53
  54         if (!src_dcb_cfg || !dst_dcb_cfg)
  55                 return -EINVAL;
  56
  57         for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
  58                 src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
  59                 dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
  60
  61                 dst_tc_cfg->path[DCB_TX_CONFIG].prio_type =
  62                                 src_tc_cfg->path[DCB_TX_CONFIG].prio_type;
  63
  64                 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id =
  65                                 src_tc_cfg->path[DCB_TX_CONFIG].bwg_id;
  66
  67                 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent =
  68                                 src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent;
  69
  70                 dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap =
  71                                 src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap;
  72
  73                 dst_tc_cfg->path[DCB_RX_CONFIG].prio_type =
  74                                 src_tc_cfg->path[DCB_RX_CONFIG].prio_type;
  75
  76                 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id =
  77                                 src_tc_cfg->path[DCB_RX_CONFIG].bwg_id;
  78
  79                 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent =
  80                                 src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent;
  81
  82                 dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap =
  83                                 src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap;
  84         }
  85
  86         for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
  87                 dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG]
  88                         [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
  89                                 [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
  90                 dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG]
  91                         [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
  92                                 [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
  93         }
  94
  95         for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
  96                 dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc =
  97                         src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
  98         }
  99
 100         dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable;
 101
 102         return 0;
 103 }
 104
 105 static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
 106 {
 107         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 108
 109         return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
 110 }
 111
 112 static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 113 {
 114         u8 err = 0;
 115         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 116
 117         if (state > 0) {
 118                 /* Turn on DCB */
 119                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
 120                         goto out;
 121
 122                 if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
 123                         DPRINTK(DRV, ERR, "Enable failed, needs MSI-X\n");
 124                         err = 1;
 125                         goto out;
 126                 }
 127
 128                 if (netif_running(netdev))
 129                         netdev->netdev_ops->ndo_stop(netdev);
 130                 ixgbe_clear_interrupt_scheme(adapter);
 131
 132                 if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
 133                         adapter->last_lfc_mode = adapter->hw.fc.current_mode;
 134                         adapter->hw.fc.requested_mode = ixgbe_fc_none;
 135                 }
 136                 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
 137                 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 138                         adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
 139                         adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
 140                 }
 141                 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
 142 #ifdef IXGBE_FCOE
 143                 /* Turn on FCoE offload */
 144                 if ((adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) &&
 145                     (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED))) {
 146                         adapter->flags |= IXGBE_FLAG_FCOE_ENABLED;
 147                         adapter->ring_feature[RING_F_FCOE].indices =
 148                                 IXGBE_FCRETA_SIZE;
 149                         netdev->features |= NETIF_F_FCOE_CRC;
 150                         netdev->features |= NETIF_F_FSO;
 151                         netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
 152                 }
 153 #endif /* IXGBE_FCOE */
 154                 ixgbe_init_interrupt_scheme(adapter);
 155                 if (netif_running(netdev))
 156                         netdev->netdev_ops->ndo_open(netdev);
 157         } else {
 158                 /* Turn off DCB */
 159                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 160                         if (netif_running(netdev))
 161                                 netdev->netdev_ops->ndo_stop(netdev);
 162                         ixgbe_clear_interrupt_scheme(adapter);
 163
 164                         adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
 165                         adapter->temp_dcb_cfg.pfc_mode_enable = false;
 166                         adapter->dcb_cfg.pfc_mode_enable = false;
 167                         adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
 168                         adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
 169                         if (adapter->hw.mac.type == ixgbe_mac_82599EB)
 170                                 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
 171
 172 #ifdef IXGBE_FCOE
 173                         /* Turn off FCoE offload */
 174                         if (adapter->flags & (IXGBE_FLAG_FCOE_CAPABLE |
 175                              IXGBE_FLAG_FCOE_ENABLED)) {
 176                                 adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
 177                                 adapter->ring_feature[RING_F_FCOE].indices = 0;
 178                                 netdev->features &= ~NETIF_F_FCOE_CRC;
 179                                 netdev->features &= ~NETIF_F_FSO;
 180                                 netdev->fcoe_ddp_xid = 0;
 181                         }
 182 #endif /* IXGBE_FCOE */
 183                         ixgbe_init_interrupt_scheme(adapter);
 184                         if (netif_running(netdev))
 185                                 netdev->netdev_ops->ndo_open(netdev);
 186                 }
 187         }
 188 out:
 189         return err;
 190 }
 191
 192 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
 193                                          u8 *perm_addr)
 194 {
 195         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 196         int i, j;
 197
 198         memset(perm_addr, 0xff, MAX_ADDR_LEN);
 199
 200         for (i = 0; i < netdev->addr_len; i++)
 201                 perm_addr[i] = adapter->hw.mac.perm_addr[i];
 202
 203         if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 204                 for (j = 0; j < netdev->addr_len; j++, i++)
 205                         perm_addr[i] = adapter->hw.mac.san_addr[j];
 206         }
 207 }
 208
 209 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
 210                                          u8 prio, u8 bwg_id, u8 bw_pct,
 211                                          u8 up_map)
 212 {
 213         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 214
 215         if (prio != DCB_ATTR_VALUE_UNDEFINED)
 216                 adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
 217         if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
 218                 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
 219         if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
 220                 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
 221                         bw_pct;
 222         if (up_map != DCB_ATTR_VALUE_UNDEFINED)
 223                 adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
 224                         up_map;
 225
 226         if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type !=
 227              adapter->dcb_cfg.tc_config[tc].path[0].prio_type) ||
 228             (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id !=
 229              adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) ||
 230             (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
 231              adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
 232             (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap !=
 233              adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) {
 234                 adapter->dcb_set_bitmap |= BIT_PG_TX;
 235                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 236         }
 237 }
 238
 239 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
 240                                           u8 bw_pct)
 241 {
 242         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 243
 244         adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
 245
 246         if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
 247             adapter->dcb_cfg.bw_percentage[0][bwg_id]) {
 248                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 249                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 250         }
 251 }
 252
 253 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
 254                                          u8 prio, u8 bwg_id, u8 bw_pct,
 255                                          u8 up_map)
 256 {
 257         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 258
 259         if (prio != DCB_ATTR_VALUE_UNDEFINED)
 260                 adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
 261         if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
 262                 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
 263         if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
 264                 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
 265                         bw_pct;
 266         if (up_map != DCB_ATTR_VALUE_UNDEFINED)
 267                 adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
 268                         up_map;
 269
 270         if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type !=
 271              adapter->dcb_cfg.tc_config[tc].path[1].prio_type) ||
 272             (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id !=
 273              adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) ||
 274             (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
 275              adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
 276             (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap !=
 277              adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) {
 278                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 279                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 280         }
 281 }
 282
 283 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
 284                                           u8 bw_pct)
 285 {
 286         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 287
 288         adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
 289
 290         if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
 291             adapter->dcb_cfg.bw_percentage[1][bwg_id]) {
 292                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 293                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 294         }
 295 }
 296
 297 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
 298                                          u8 *prio, u8 *bwg_id, u8 *bw_pct,
 299                                          u8 *up_map)
 300 {
 301         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 302
 303         *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
 304         *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
 305         *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
 306         *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
 307 }
 308
 309 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
 310                                           u8 *bw_pct)
 311 {
 312         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 313
 314         *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
 315 }
 316
 317 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
 318                                          u8 *prio, u8 *bwg_id, u8 *bw_pct,
 319                                          u8 *up_map)
 320 {
 321         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 322
 323         *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
 324         *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
 325         *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
 326         *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
 327 }
 328
 329 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
 330                                           u8 *bw_pct)
 331 {
 332         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 333
 334         *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
 335 }
 336
 337 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
 338                                     u8 setting)
 339 {
 340         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 341
 342         adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
 343         if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
 344             adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
 345                 adapter->dcb_set_bitmap |= BIT_PFC;
 346                 adapter->temp_dcb_cfg.pfc_mode_enable = true;
 347         }
 348 }
 349
 350 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
 351                                     u8 *setting)
 352 {
 353         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 354
 355         *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
 356 }
 357
 358 static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
 359 {
 360         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 361         int ret;
 362
 363         if (!adapter->dcb_set_bitmap)
 364                 return DCB_NO_HW_CHG;
 365
 366         /*
 367          * Only take down the adapter if the configuration change
 368          * requires a reset.
 369          */
 370         if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
 371                 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
 372                         msleep(1);
 373
 374                 if (netif_running(netdev))
 375                         ixgbe_down(adapter);
 376         }
 377
 378         ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
 379                                  adapter->ring_feature[RING_F_DCB].indices);
 380         if (ret) {
 381                 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
 382                         clear_bit(__IXGBE_RESETTING, &adapter->state);
 383                 return DCB_NO_HW_CHG;
 384         }
 385
 386         if (adapter->dcb_cfg.pfc_mode_enable) {
 387                 if ((adapter->hw.mac.type != ixgbe_mac_82598EB) &&
 388                         (adapter->hw.fc.current_mode != ixgbe_fc_pfc))
 389                         adapter->last_lfc_mode = adapter->hw.fc.current_mode;
 390                 adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
 391         } else {
 392                 if (adapter->hw.mac.type != ixgbe_mac_82598EB)
 393                         adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
 394                 else
 395                         adapter->hw.fc.requested_mode = ixgbe_fc_none;
 396         }
 397
 398         if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
 399                 if (netif_running(netdev))
 400                         ixgbe_up(adapter);
 401                 ret = DCB_HW_CHG_RST;
 402         } else if (adapter->dcb_set_bitmap & BIT_PFC) {
 403                 if (adapter->hw.mac.type == ixgbe_mac_82598EB)
 404                         ixgbe_dcb_config_pfc_82598(&adapter->hw,
 405                                                    &adapter->dcb_cfg);
 406                 else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
 407                         ixgbe_dcb_config_pfc_82599(&adapter->hw,
 408                                                    &adapter->dcb_cfg);
 409                 ret = DCB_HW_CHG;
 410         }
 411         if (adapter->dcb_cfg.pfc_mode_enable)
 412                 adapter->hw.fc.current_mode = ixgbe_fc_pfc;
 413
 414         if (adapter->dcb_set_bitmap & BIT_RESETLINK)
 415                 clear_bit(__IXGBE_RESETTING, &adapter->state);
 416         adapter->dcb_set_bitmap = 0x00;
 417         return ret;
 418 }
 419
 420 static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
 421 {
 422         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 423         u8 rval = 0;
 424
 425         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 426                 switch (capid) {
 427                 case DCB_CAP_ATTR_PG:
 428                         *cap = true;
 429                         break;
 430                 case DCB_CAP_ATTR_PFC:
 431                         *cap = true;
 432                         break;
 433                 case DCB_CAP_ATTR_UP2TC:
 434                         *cap = false;
 435                         break;
 436                 case DCB_CAP_ATTR_PG_TCS:
 437                         *cap = 0x80;
 438                         break;
 439                 case DCB_CAP_ATTR_PFC_TCS:
 440                         *cap = 0x80;
 441                         break;
 442                 case DCB_CAP_ATTR_GSP:
 443                         *cap = true;
 444                         break;
 445                 case DCB_CAP_ATTR_BCN:
 446                         *cap = false;
 447                         break;
 448                 default:
 449                         rval = -EINVAL;
 450                         break;
 451                 }
 452         } else {
 453                 rval = -EINVAL;
 454         }
 455
 456         return rval;
 457 }
 458
 459 static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
 460 {
 461         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 462         u8 rval = 0;
 463
 464         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 465                 switch (tcid) {
 466                 case DCB_NUMTCS_ATTR_PG:
 467                         *num = MAX_TRAFFIC_CLASS;
 468                         break;
 469                 case DCB_NUMTCS_ATTR_PFC:
 470                         *num = MAX_TRAFFIC_CLASS;
 471                         break;
 472                 default:
 473                         rval = -EINVAL;
 474                         break;
 475                 }
 476         } else {
 477                 rval = -EINVAL;
 478         }
 479
 480         return rval;
 481 }
 482
 483 static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
 484 {
 485         return -EINVAL;
 486 }
 487
 488 static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
 489 {
 490         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 491
 492         return adapter->dcb_cfg.pfc_mode_enable;
 493 }
 494
 495 static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
 496 {
 497         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 498
 499         adapter->temp_dcb_cfg.pfc_mode_enable = state;
 500         if (adapter->temp_dcb_cfg.pfc_mode_enable !=
 501                 adapter->dcb_cfg.pfc_mode_enable)
 502                 adapter->dcb_set_bitmap |= BIT_PFC;
 503         return;
 504 }
 505
 506 struct dcbnl_rtnl_ops dcbnl_ops = {
 507         .getstate       = ixgbe_dcbnl_get_state,
 508         .setstate       = ixgbe_dcbnl_set_state,
 509         .getpermhwaddr  = ixgbe_dcbnl_get_perm_hw_addr,
 510         .setpgtccfgtx   = ixgbe_dcbnl_set_pg_tc_cfg_tx,
 511         .setpgbwgcfgtx  = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
 512         .setpgtccfgrx   = ixgbe_dcbnl_set_pg_tc_cfg_rx,
 513         .setpgbwgcfgrx  = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
 514         .getpgtccfgtx   = ixgbe_dcbnl_get_pg_tc_cfg_tx,
 515         .getpgbwgcfgtx  = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
 516         .getpgtccfgrx   = ixgbe_dcbnl_get_pg_tc_cfg_rx,
 517         .getpgbwgcfgrx  = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
 518         .setpfccfg      = ixgbe_dcbnl_set_pfc_cfg,
 519         .getpfccfg      = ixgbe_dcbnl_get_pfc_cfg,
 520         .setall         = ixgbe_dcbnl_set_all,
 521         .getcap         = ixgbe_dcbnl_getcap,
 522         .getnumtcs      = ixgbe_dcbnl_getnumtcs,
 523         .setnumtcs      = ixgbe_dcbnl_setnumtcs,
 524         .getpfcstate    = ixgbe_dcbnl_getpfcstate,
 525         .setpfcstate    = ixgbe_dcbnl_setpfcstate,
 526 };
 527