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_APP_UPCHG   0x10
  40 #define BIT_RESETLINK   0x40
  41 #define BIT_LINKSPEED   0x80
  42
  43 /* Responses for the DCB_C_SET_ALL command */
  44 #define DCB_HW_CHG_RST  0  /* DCB configuration changed with reset */
  45 #define DCB_NO_HW_CHG   1  /* DCB configuration did not change */
  46 #define DCB_HW_CHG      2  /* DCB configuration changed, no reset */
  47
  48 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
  49                        struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
  50 {
  51         struct tc_configuration *src_tc_cfg = NULL;
  52         struct tc_configuration *dst_tc_cfg = NULL;
  53         int i;
  54
  55         if (!src_dcb_cfg || !dst_dcb_cfg)
  56                 return -EINVAL;
  57
  58         for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
  59                 src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
  60                 dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
  61
  62                 dst_tc_cfg->path[DCB_TX_CONFIG].prio_type =
  63                                 src_tc_cfg->path[DCB_TX_CONFIG].prio_type;
  64
  65                 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id =
  66                                 src_tc_cfg->path[DCB_TX_CONFIG].bwg_id;
  67
  68                 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent =
  69                                 src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent;
  70
  71                 dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap =
  72                                 src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap;
  73
  74                 dst_tc_cfg->path[DCB_RX_CONFIG].prio_type =
  75                                 src_tc_cfg->path[DCB_RX_CONFIG].prio_type;
  76
  77                 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id =
  78                                 src_tc_cfg->path[DCB_RX_CONFIG].bwg_id;
  79
  80                 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent =
  81                                 src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent;
  82
  83                 dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap =
  84                                 src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap;
  85         }
  86
  87         for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
  88                 dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG]
  89                         [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
  90                                 [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
  91                 dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG]
  92                         [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
  93                                 [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
  94         }
  95
  96         for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
  97                 dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc =
  98                         src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
  99         }
 100
 101         dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable;
 102
 103         return 0;
 104 }
 105
 106 static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
 107 {
 108         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 109
 110         return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
 111 }
 112
 113 static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 114 {
 115         u8 err = 0;
 116         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 117
 118         if (state > 0) {
 119                 /* Turn on DCB */
 120                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
 121                         goto out;
 122
 123                 if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
 124                         DPRINTK(DRV, ERR, "Enable failed, needs MSI-X\n");
 125                         err = 1;
 126                         goto out;
 127                 }
 128
 129                 if (netif_running(netdev))
 130                         netdev->netdev_ops->ndo_stop(netdev);
 131                 ixgbe_clear_interrupt_scheme(adapter);
 132
 133                 if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
 134                         adapter->last_lfc_mode = adapter->hw.fc.current_mode;
 135                         adapter->hw.fc.requested_mode = ixgbe_fc_none;
 136                 }
 137                 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
 138                 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 139                         adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
 140                         adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
 141                 }
 142                 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
 143                 ixgbe_init_interrupt_scheme(adapter);
 144                 if (netif_running(netdev))
 145                         netdev->netdev_ops->ndo_open(netdev);
 146         } else {
 147                 /* Turn off DCB */
 148                 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 149                         if (netif_running(netdev))
 150                                 netdev->netdev_ops->ndo_stop(netdev);
 151                         ixgbe_clear_interrupt_scheme(adapter);
 152
 153                         adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
 154                         adapter->temp_dcb_cfg.pfc_mode_enable = false;
 155                         adapter->dcb_cfg.pfc_mode_enable = false;
 156                         adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
 157                         adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
 158                         if (adapter->hw.mac.type == ixgbe_mac_82599EB)
 159                                 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
 160
 161                         ixgbe_init_interrupt_scheme(adapter);
 162                         if (netif_running(netdev))
 163                                 netdev->netdev_ops->ndo_open(netdev);
 164                 }
 165         }
 166 out:
 167         return err;
 168 }
 169
 170 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
 171                                          u8 *perm_addr)
 172 {
 173         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 174         int i, j;
 175
 176         memset(perm_addr, 0xff, MAX_ADDR_LEN);
 177
 178         for (i = 0; i < netdev->addr_len; i++)
 179                 perm_addr[i] = adapter->hw.mac.perm_addr[i];
 180
 181         if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 182                 for (j = 0; j < netdev->addr_len; j++, i++)
 183                         perm_addr[i] = adapter->hw.mac.san_addr[j];
 184         }
 185 }
 186
 187 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
 188                                          u8 prio, u8 bwg_id, u8 bw_pct,
 189                                          u8 up_map)
 190 {
 191         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 192
 193         if (prio != DCB_ATTR_VALUE_UNDEFINED)
 194                 adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
 195         if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
 196                 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
 197         if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
 198                 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
 199                         bw_pct;
 200         if (up_map != DCB_ATTR_VALUE_UNDEFINED)
 201                 adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
 202                         up_map;
 203
 204         if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type !=
 205              adapter->dcb_cfg.tc_config[tc].path[0].prio_type) ||
 206             (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id !=
 207              adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) ||
 208             (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
 209              adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
 210             (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap !=
 211              adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) {
 212                 adapter->dcb_set_bitmap |= BIT_PG_TX;
 213                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 214         }
 215 }
 216
 217 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
 218                                           u8 bw_pct)
 219 {
 220         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 221
 222         adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
 223
 224         if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
 225             adapter->dcb_cfg.bw_percentage[0][bwg_id]) {
 226                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 227                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 228         }
 229 }
 230
 231 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
 232                                          u8 prio, u8 bwg_id, u8 bw_pct,
 233                                          u8 up_map)
 234 {
 235         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 236
 237         if (prio != DCB_ATTR_VALUE_UNDEFINED)
 238                 adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
 239         if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
 240                 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
 241         if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
 242                 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
 243                         bw_pct;
 244         if (up_map != DCB_ATTR_VALUE_UNDEFINED)
 245                 adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
 246                         up_map;
 247
 248         if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type !=
 249              adapter->dcb_cfg.tc_config[tc].path[1].prio_type) ||
 250             (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id !=
 251              adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) ||
 252             (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
 253              adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
 254             (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap !=
 255              adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) {
 256                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 257                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 258         }
 259 }
 260
 261 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
 262                                           u8 bw_pct)
 263 {
 264         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 265
 266         adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
 267
 268         if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
 269             adapter->dcb_cfg.bw_percentage[1][bwg_id]) {
 270                 adapter->dcb_set_bitmap |= BIT_PG_RX;
 271                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 272         }
 273 }
 274
 275 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
 276                                          u8 *prio, u8 *bwg_id, u8 *bw_pct,
 277                                          u8 *up_map)
 278 {
 279         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 280
 281         *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
 282         *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
 283         *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
 284         *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
 285 }
 286
 287 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
 288                                           u8 *bw_pct)
 289 {
 290         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 291
 292         *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
 293 }
 294
 295 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
 296                                          u8 *prio, u8 *bwg_id, u8 *bw_pct,
 297                                          u8 *up_map)
 298 {
 299         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 300
 301         *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
 302         *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
 303         *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
 304         *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
 305 }
 306
 307 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
 308                                           u8 *bw_pct)
 309 {
 310         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 311
 312         *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
 313 }
 314
 315 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
 316                                     u8 setting)
 317 {
 318         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 319
 320         adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
 321         if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
 322             adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
 323                 adapter->dcb_set_bitmap |= BIT_PFC;
 324                 adapter->temp_dcb_cfg.pfc_mode_enable = true;
 325         }
 326 }
 327
 328 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
 329                                     u8 *setting)
 330 {
 331         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 332
 333         *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
 334 }
 335
 336 static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
 337 {
 338         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 339         int ret;
 340
 341         if (!adapter->dcb_set_bitmap)
 342                 return DCB_NO_HW_CHG;
 343
 344         /*
 345          * Only take down the adapter if the configuration change
 346          * requires a reset.
 347          */
 348         if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
 349                 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
 350                         msleep(1);
 351
 352                 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
 353                         if (netif_running(netdev))
 354                                 netdev->netdev_ops->ndo_stop(netdev);
 355                         ixgbe_clear_interrupt_scheme(adapter);
 356                 } else {
 357                         if (netif_running(netdev))
 358                                 ixgbe_down(adapter);
 359                 }
 360         }
 361
 362         ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
 363                                  adapter->ring_feature[RING_F_DCB].indices);
 364         if (ret) {
 365                 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
 366                         clear_bit(__IXGBE_RESETTING, &adapter->state);
 367                 return DCB_NO_HW_CHG;
 368         }
 369
 370         if (adapter->dcb_cfg.pfc_mode_enable) {
 371                 if ((adapter->hw.mac.type != ixgbe_mac_82598EB) &&
 372                         (adapter->hw.fc.current_mode != ixgbe_fc_pfc))
 373                         adapter->last_lfc_mode = adapter->hw.fc.current_mode;
 374                 adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
 375         } else {
 376                 if (adapter->hw.mac.type != ixgbe_mac_82598EB)
 377                         adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
 378                 else
 379                         adapter->hw.fc.requested_mode = ixgbe_fc_none;
 380         }
 381
 382         if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
 383                 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
 384                         ixgbe_init_interrupt_scheme(adapter);
 385                         if (netif_running(netdev))
 386                                 netdev->netdev_ops->ndo_open(netdev);
 387                 } else {
 388                         if (netif_running(netdev))
 389                                 ixgbe_up(adapter);
 390                 }
 391                 ret = DCB_HW_CHG_RST;
 392         } else if (adapter->dcb_set_bitmap & BIT_PFC) {
 393                 if (adapter->hw.mac.type == ixgbe_mac_82598EB)
 394                         ixgbe_dcb_config_pfc_82598(&adapter->hw,
 395                                                    &adapter->dcb_cfg);
 396                 else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
 397                         ixgbe_dcb_config_pfc_82599(&adapter->hw,
 398                                                    &adapter->dcb_cfg);
 399                 ret = DCB_HW_CHG;
 400         }
 401         if (adapter->dcb_cfg.pfc_mode_enable)
 402                 adapter->hw.fc.current_mode = ixgbe_fc_pfc;
 403
 404         if (adapter->dcb_set_bitmap & BIT_RESETLINK)
 405                 clear_bit(__IXGBE_RESETTING, &adapter->state);
 406         adapter->dcb_set_bitmap = 0x00;
 407         return ret;
 408 }
 409
 410 static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
 411 {
 412         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 413         u8 rval = 0;
 414
 415         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 416                 switch (capid) {
 417                 case DCB_CAP_ATTR_PG:
 418                         *cap = true;
 419                         break;
 420                 case DCB_CAP_ATTR_PFC:
 421                         *cap = true;
 422                         break;
 423                 case DCB_CAP_ATTR_UP2TC:
 424                         *cap = false;
 425                         break;
 426                 case DCB_CAP_ATTR_PG_TCS:
 427                         *cap = 0x80;
 428                         break;
 429                 case DCB_CAP_ATTR_PFC_TCS:
 430                         *cap = 0x80;
 431                         break;
 432                 case DCB_CAP_ATTR_GSP:
 433                         *cap = true;
 434                         break;
 435                 case DCB_CAP_ATTR_BCN:
 436                         *cap = false;
 437                         break;
 438                 default:
 439                         rval = -EINVAL;
 440                         break;
 441                 }
 442         } else {
 443                 rval = -EINVAL;
 444         }
 445
 446         return rval;
 447 }
 448
 449 static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
 450 {
 451         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 452         u8 rval = 0;
 453
 454         if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
 455                 switch (tcid) {
 456                 case DCB_NUMTCS_ATTR_PG:
 457                         *num = MAX_TRAFFIC_CLASS;
 458                         break;
 459                 case DCB_NUMTCS_ATTR_PFC:
 460                         *num = MAX_TRAFFIC_CLASS;
 461                         break;
 462                 default:
 463                         rval = -EINVAL;
 464                         break;
 465                 }
 466         } else {
 467                 rval = -EINVAL;
 468         }
 469
 470         return rval;
 471 }
 472
 473 static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
 474 {
 475         return -EINVAL;
 476 }
 477
 478 static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
 479 {
 480         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 481
 482         return adapter->dcb_cfg.pfc_mode_enable;
 483 }
 484
 485 static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
 486 {
 487         struct ixgbe_adapter *adapter = netdev_priv(netdev);
 488
 489         adapter->temp_dcb_cfg.pfc_mode_enable = state;
 490         if (adapter->temp_dcb_cfg.pfc_mode_enable !=
 491                 adapter->dcb_cfg.pfc_mode_enable)
 492                 adapter->dcb_set_bitmap |= BIT_PFC;
 493         return;
 494 }
 495
 496 /**
 497  * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority
 498  * @netdev : the corresponding netdev
 499  * @idtype : identifies the id as ether type or TCP/UDP port number
 500  * @id: id is either ether type or TCP/UDP port number
 501  *
 502  * Returns : on success, returns a non-zero 802.1p user priority bitmap
 503  * otherwise returns 0 as the invalid user priority bitmap to indicate an
 504  * error.
 505  */
 506 static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
 507 {
 508         u8 rval = 0;
 509
 510         switch (idtype) {
 511         case DCB_APP_IDTYPE_ETHTYPE:
 512 #ifdef IXGBE_FCOE
 513                 if (id == ETH_P_FCOE)
 514                         rval = ixgbe_fcoe_getapp(netdev_priv(netdev));
 515 #endif
 516                 break;
 517         case DCB_APP_IDTYPE_PORTNUM:
 518                 break;
 519         default:
 520                 break;
 521         }
 522         return rval;
 523 }
 524
 525 /**
 526  * ixgbe_dcbnl_setapp - set the DCBX application user priority
 527  * @netdev : the corresponding netdev
 528  * @idtype : identifies the id as ether type or TCP/UDP port number
 529  * @id: id is either ether type or TCP/UDP port number
 530  * @up: the 802.1p user priority bitmap
 531  *
 532  * Returns : 0 on success or 1 on error
 533  */
 534 static u8 ixgbe_dcbnl_setapp(struct net_device *netdev,
 535                              u8 idtype, u16 id, u8 up)
 536 {
 537         u8 rval = 1;
 538
 539         switch (idtype) {
 540         case DCB_APP_IDTYPE_ETHTYPE:
 541 #ifdef IXGBE_FCOE
 542                 if (id == ETH_P_FCOE) {
 543                         u8 tc;
 544                         struct ixgbe_adapter *adapter;
 545
 546                         adapter = netdev_priv(netdev);
 547                         tc = adapter->fcoe.tc;
 548                         rval = ixgbe_fcoe_setapp(adapter, up);
 549                         if ((!rval) && (tc != adapter->fcoe.tc) &&
 550                             (adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
 551                             (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) {
 552                                 adapter->dcb_set_bitmap |= BIT_APP_UPCHG;
 553                                 adapter->dcb_set_bitmap |= BIT_RESETLINK;
 554                         }
 555                 }
 556 #endif
 557                 break;
 558         case DCB_APP_IDTYPE_PORTNUM:
 559                 break;
 560         default:
 561                 break;
 562         }
 563         return rval;
 564 }
 565
 566 struct dcbnl_rtnl_ops dcbnl_ops = {
 567         .getstate       = ixgbe_dcbnl_get_state,
 568         .setstate       = ixgbe_dcbnl_set_state,
 569         .getpermhwaddr  = ixgbe_dcbnl_get_perm_hw_addr,
 570         .setpgtccfgtx   = ixgbe_dcbnl_set_pg_tc_cfg_tx,
 571         .setpgbwgcfgtx  = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
 572         .setpgtccfgrx   = ixgbe_dcbnl_set_pg_tc_cfg_rx,
 573         .setpgbwgcfgrx  = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
 574         .getpgtccfgtx   = ixgbe_dcbnl_get_pg_tc_cfg_tx,
 575         .getpgbwgcfgtx  = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
 576         .getpgtccfgrx   = ixgbe_dcbnl_get_pg_tc_cfg_rx,
 577         .getpgbwgcfgrx  = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
 578         .setpfccfg      = ixgbe_dcbnl_set_pfc_cfg,
 579         .getpfccfg      = ixgbe_dcbnl_get_pfc_cfg,
 580         .setall         = ixgbe_dcbnl_set_all,
 581         .getcap         = ixgbe_dcbnl_getcap,
 582         .getnumtcs      = ixgbe_dcbnl_getnumtcs,
 583         .setnumtcs      = ixgbe_dcbnl_setnumtcs,
 584         .getpfcstate    = ixgbe_dcbnl_getpfcstate,
 585         .setpfcstate    = ixgbe_dcbnl_setpfcstate,
 586         .getapp         = ixgbe_dcbnl_getapp,
 587         .setapp         = ixgbe_dcbnl_setapp,
 588 };
 589