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1// SPDX-License-Identifier: GPL-2.02/* Copyright(c) 1999 - 2018 Intel Corporation. */3 4#include "ixgbe.h"5#include <linux/dcbnl.h>6#include "ixgbe_dcb_82598.h"7#include "ixgbe_dcb_82599.h"8#include "ixgbe_sriov.h"9 10/* Callbacks for DCB netlink in the kernel */11#define BIT_PFC 0x0212#define BIT_PG_RX 0x0413#define BIT_PG_TX 0x0814#define BIT_APP_UPCHG 0x1015 16/* Responses for the DCB_C_SET_ALL command */17#define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */18#define DCB_NO_HW_CHG 1 /* DCB configuration did not change */19#define DCB_HW_CHG 2 /* DCB configuration changed, no reset */20 21static int ixgbe_copy_dcb_cfg(struct ixgbe_adapter *adapter, int tc_max)22{23 struct ixgbe_dcb_config *scfg = &adapter->temp_dcb_cfg;24 struct ixgbe_dcb_config *dcfg = &adapter->dcb_cfg;25 struct tc_configuration *src = NULL;26 struct tc_configuration *dst = NULL;27 int i, j;28 int tx = DCB_TX_CONFIG;29 int rx = DCB_RX_CONFIG;30 int changes = 0;31#ifdef IXGBE_FCOE32 struct dcb_app app = {33 .selector = DCB_APP_IDTYPE_ETHTYPE,34 .protocol = ETH_P_FCOE,35 };36 u8 up = dcb_getapp(adapter->netdev, &app);37 38 if (up && !(up & BIT(adapter->fcoe.up)))39 changes |= BIT_APP_UPCHG;40#endif41 42 for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {43 src = &scfg->tc_config[i - DCB_PG_ATTR_TC_0];44 dst = &dcfg->tc_config[i - DCB_PG_ATTR_TC_0];45 46 if (dst->path[tx].prio_type != src->path[tx].prio_type) {47 dst->path[tx].prio_type = src->path[tx].prio_type;48 changes |= BIT_PG_TX;49 }50 51 if (dst->path[tx].bwg_id != src->path[tx].bwg_id) {52 dst->path[tx].bwg_id = src->path[tx].bwg_id;53 changes |= BIT_PG_TX;54 }55 56 if (dst->path[tx].bwg_percent != src->path[tx].bwg_percent) {57 dst->path[tx].bwg_percent = src->path[tx].bwg_percent;58 changes |= BIT_PG_TX;59 }60 61 if (dst->path[tx].up_to_tc_bitmap !=62 src->path[tx].up_to_tc_bitmap) {63 dst->path[tx].up_to_tc_bitmap =64 src->path[tx].up_to_tc_bitmap;65 changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG);66 }67 68 if (dst->path[rx].prio_type != src->path[rx].prio_type) {69 dst->path[rx].prio_type = src->path[rx].prio_type;70 changes |= BIT_PG_RX;71 }72 73 if (dst->path[rx].bwg_id != src->path[rx].bwg_id) {74 dst->path[rx].bwg_id = src->path[rx].bwg_id;75 changes |= BIT_PG_RX;76 }77 78 if (dst->path[rx].bwg_percent != src->path[rx].bwg_percent) {79 dst->path[rx].bwg_percent = src->path[rx].bwg_percent;80 changes |= BIT_PG_RX;81 }82 83 if (dst->path[rx].up_to_tc_bitmap !=84 src->path[rx].up_to_tc_bitmap) {85 dst->path[rx].up_to_tc_bitmap =86 src->path[rx].up_to_tc_bitmap;87 changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG);88 }89 }90 91 for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {92 j = i - DCB_PG_ATTR_BW_ID_0;93 if (dcfg->bw_percentage[tx][j] != scfg->bw_percentage[tx][j]) {94 dcfg->bw_percentage[tx][j] = scfg->bw_percentage[tx][j];95 changes |= BIT_PG_TX;96 }97 if (dcfg->bw_percentage[rx][j] != scfg->bw_percentage[rx][j]) {98 dcfg->bw_percentage[rx][j] = scfg->bw_percentage[rx][j];99 changes |= BIT_PG_RX;100 }101 }102 103 for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {104 j = i - DCB_PFC_UP_ATTR_0;105 if (dcfg->tc_config[j].dcb_pfc != scfg->tc_config[j].dcb_pfc) {106 dcfg->tc_config[j].dcb_pfc = scfg->tc_config[j].dcb_pfc;107 changes |= BIT_PFC;108 }109 }110 111 if (dcfg->pfc_mode_enable != scfg->pfc_mode_enable) {112 dcfg->pfc_mode_enable = scfg->pfc_mode_enable;113 changes |= BIT_PFC;114 }115 116 return changes;117}118 119static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)120{121 struct ixgbe_adapter *adapter = netdev_priv(netdev);122 123 return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);124}125 126static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)127{128 struct ixgbe_adapter *adapter = netdev_priv(netdev);129 130 /* Fail command if not in CEE mode */131 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))132 return 1;133 134 /* verify there is something to do, if not then exit */135 if (!state == !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))136 return 0;137 138 return !!ixgbe_setup_tc(netdev,139 state ? adapter->dcb_cfg.num_tcs.pg_tcs : 0);140}141 142static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,143 u8 *perm_addr)144{145 struct ixgbe_adapter *adapter = netdev_priv(netdev);146 int i, j;147 148 memset(perm_addr, 0xff, MAX_ADDR_LEN);149 150 for (i = 0; i < netdev->addr_len; i++)151 perm_addr[i] = adapter->hw.mac.perm_addr[i];152 153 switch (adapter->hw.mac.type) {154 case ixgbe_mac_82599EB:155 case ixgbe_mac_X540:156 case ixgbe_mac_X550:157 for (j = 0; j < netdev->addr_len; j++, i++)158 perm_addr[i] = adapter->hw.mac.san_addr[j];159 break;160 default:161 break;162 }163}164 165static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,166 u8 prio, u8 bwg_id, u8 bw_pct,167 u8 up_map)168{169 struct ixgbe_adapter *adapter = netdev_priv(netdev);170 171 if (prio != DCB_ATTR_VALUE_UNDEFINED)172 adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;173 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)174 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;175 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)176 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =177 bw_pct;178 if (up_map != DCB_ATTR_VALUE_UNDEFINED)179 adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =180 up_map;181}182 183static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,184 u8 bw_pct)185{186 struct ixgbe_adapter *adapter = netdev_priv(netdev);187 188 adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;189}190 191static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,192 u8 prio, u8 bwg_id, u8 bw_pct,193 u8 up_map)194{195 struct ixgbe_adapter *adapter = netdev_priv(netdev);196 197 if (prio != DCB_ATTR_VALUE_UNDEFINED)198 adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;199 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)200 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;201 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)202 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =203 bw_pct;204 if (up_map != DCB_ATTR_VALUE_UNDEFINED)205 adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =206 up_map;207}208 209static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,210 u8 bw_pct)211{212 struct ixgbe_adapter *adapter = netdev_priv(netdev);213 214 adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;215}216 217static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,218 u8 *prio, u8 *bwg_id, u8 *bw_pct,219 u8 *up_map)220{221 struct ixgbe_adapter *adapter = netdev_priv(netdev);222 223 *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;224 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;225 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;226 *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;227}228 229static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,230 u8 *bw_pct)231{232 struct ixgbe_adapter *adapter = netdev_priv(netdev);233 234 *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];235}236 237static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,238 u8 *prio, u8 *bwg_id, u8 *bw_pct,239 u8 *up_map)240{241 struct ixgbe_adapter *adapter = netdev_priv(netdev);242 243 *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;244 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;245 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;246 *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;247}248 249static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,250 u8 *bw_pct)251{252 struct ixgbe_adapter *adapter = netdev_priv(netdev);253 254 *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];255}256 257static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,258 u8 setting)259{260 struct ixgbe_adapter *adapter = netdev_priv(netdev);261 262 adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;263 if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=264 adapter->dcb_cfg.tc_config[priority].dcb_pfc)265 adapter->temp_dcb_cfg.pfc_mode_enable = true;266}267 268static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,269 u8 *setting)270{271 struct ixgbe_adapter *adapter = netdev_priv(netdev);272 273 *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;274}275 276static void ixgbe_dcbnl_devreset(struct net_device *dev)277{278 struct ixgbe_adapter *adapter = netdev_priv(dev);279 280 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))281 usleep_range(1000, 2000);282 283 if (netif_running(dev))284 dev->netdev_ops->ndo_stop(dev);285 286 ixgbe_clear_interrupt_scheme(adapter);287 ixgbe_init_interrupt_scheme(adapter);288 289 if (netif_running(dev))290 dev->netdev_ops->ndo_open(dev);291 292 clear_bit(__IXGBE_RESETTING, &adapter->state);293}294 295static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)296{297 struct ixgbe_adapter *adapter = netdev_priv(netdev);298 struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg;299 struct ixgbe_hw *hw = &adapter->hw;300 int ret = DCB_NO_HW_CHG;301 int i;302 303 /* Fail command if not in CEE mode */304 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))305 return DCB_NO_HW_CHG;306 307 adapter->dcb_set_bitmap |= ixgbe_copy_dcb_cfg(adapter,308 MAX_TRAFFIC_CLASS);309 if (!adapter->dcb_set_bitmap)310 return DCB_NO_HW_CHG;311 312 if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) {313 u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS];314 u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS];315 /* Priority to TC mapping in CEE case default to 1:1 */316 u8 prio_tc[MAX_USER_PRIORITY];317 int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;318 319#ifdef IXGBE_FCOE320 if (adapter->netdev->fcoe_mtu)321 max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);322#endif323 324 ixgbe_dcb_calculate_tc_credits(hw, dcb_cfg, max_frame,325 DCB_TX_CONFIG);326 ixgbe_dcb_calculate_tc_credits(hw, dcb_cfg, max_frame,327 DCB_RX_CONFIG);328 329 ixgbe_dcb_unpack_refill(dcb_cfg, DCB_TX_CONFIG, refill);330 ixgbe_dcb_unpack_max(dcb_cfg, max);331 ixgbe_dcb_unpack_bwgid(dcb_cfg, DCB_TX_CONFIG, bwg_id);332 ixgbe_dcb_unpack_prio(dcb_cfg, DCB_TX_CONFIG, prio_type);333 ixgbe_dcb_unpack_map(dcb_cfg, DCB_TX_CONFIG, prio_tc);334 335 ixgbe_dcb_hw_ets_config(hw, refill, max, bwg_id,336 prio_type, prio_tc);337 338 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)339 netdev_set_prio_tc_map(netdev, i, prio_tc[i]);340 341 ret = DCB_HW_CHG_RST;342 }343 344 if (adapter->dcb_set_bitmap & BIT_PFC) {345 if (dcb_cfg->pfc_mode_enable) {346 u8 pfc_en;347 u8 prio_tc[MAX_USER_PRIORITY];348 349 ixgbe_dcb_unpack_map(dcb_cfg, DCB_TX_CONFIG, prio_tc);350 ixgbe_dcb_unpack_pfc(dcb_cfg, &pfc_en);351 ixgbe_dcb_hw_pfc_config(hw, pfc_en, prio_tc);352 } else {353 hw->mac.ops.fc_enable(hw);354 }355 356 ixgbe_set_rx_drop_en(adapter);357 358 ret = DCB_HW_CHG;359 }360 361#ifdef IXGBE_FCOE362 /* Reprogram FCoE hardware offloads when the traffic class363 * FCoE is using changes. This happens if the APP info364 * changes or the up2tc mapping is updated.365 */366 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {367 struct dcb_app app = {368 .selector = DCB_APP_IDTYPE_ETHTYPE,369 .protocol = ETH_P_FCOE,370 };371 u8 up = dcb_getapp(netdev, &app);372 373 adapter->fcoe.up = ffs(up) - 1;374 ixgbe_dcbnl_devreset(netdev);375 ret = DCB_HW_CHG_RST;376 }377#endif378 379 adapter->dcb_set_bitmap = 0x00;380 return ret;381}382 383static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)384{385 struct ixgbe_adapter *adapter = netdev_priv(netdev);386 387 switch (capid) {388 case DCB_CAP_ATTR_PG:389 *cap = true;390 break;391 case DCB_CAP_ATTR_PFC:392 *cap = true;393 break;394 case DCB_CAP_ATTR_UP2TC:395 *cap = false;396 break;397 case DCB_CAP_ATTR_PG_TCS:398 *cap = 0x80;399 break;400 case DCB_CAP_ATTR_PFC_TCS:401 *cap = 0x80;402 break;403 case DCB_CAP_ATTR_GSP:404 *cap = true;405 break;406 case DCB_CAP_ATTR_BCN:407 *cap = false;408 break;409 case DCB_CAP_ATTR_DCBX:410 *cap = adapter->dcbx_cap;411 break;412 default:413 *cap = false;414 break;415 }416 417 return 0;418}419 420static int ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)421{422 struct ixgbe_adapter *adapter = netdev_priv(netdev);423 424 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {425 switch (tcid) {426 case DCB_NUMTCS_ATTR_PG:427 *num = adapter->dcb_cfg.num_tcs.pg_tcs;428 break;429 case DCB_NUMTCS_ATTR_PFC:430 *num = adapter->dcb_cfg.num_tcs.pfc_tcs;431 break;432 default:433 return -EINVAL;434 }435 } else {436 return -EINVAL;437 }438 439 return 0;440}441 442static int ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)443{444 return -EINVAL;445}446 447static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)448{449 struct ixgbe_adapter *adapter = netdev_priv(netdev);450 451 return adapter->dcb_cfg.pfc_mode_enable;452}453 454static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)455{456 struct ixgbe_adapter *adapter = netdev_priv(netdev);457 458 adapter->temp_dcb_cfg.pfc_mode_enable = state;459}460 461/**462 * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority463 * @netdev : the corresponding netdev464 * @idtype : identifies the id as ether type or TCP/UDP port number465 * @id: id is either ether type or TCP/UDP port number466 *467 * Returns : on success, returns a non-zero 802.1p user priority bitmap468 * otherwise returns -EINVAL as the invalid user priority bitmap to indicate an469 * error.470 */471static int ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)472{473 struct ixgbe_adapter *adapter = netdev_priv(netdev);474 struct dcb_app app = {475 .selector = idtype,476 .protocol = id,477 };478 479 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))480 return -EINVAL;481 482 return dcb_getapp(netdev, &app);483}484 485static int ixgbe_dcbnl_ieee_getets(struct net_device *dev,486 struct ieee_ets *ets)487{488 struct ixgbe_adapter *adapter = netdev_priv(dev);489 struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets;490 491 ets->ets_cap = adapter->dcb_cfg.num_tcs.pg_tcs;492 493 /* No IEEE PFC settings available */494 if (!my_ets)495 return 0;496 497 ets->cbs = my_ets->cbs;498 memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));499 memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));500 memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));501 memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));502 return 0;503}504 505static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,506 struct ieee_ets *ets)507{508 struct ixgbe_adapter *adapter = netdev_priv(dev);509 int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;510 int i, err;511 __u8 max_tc = 0;512 __u8 map_chg = 0;513 514 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))515 return -EINVAL;516 517 if (!adapter->ixgbe_ieee_ets) {518 adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),519 GFP_KERNEL);520 if (!adapter->ixgbe_ieee_ets)521 return -ENOMEM;522 523 /* initialize UP2TC mappings to invalid value */524 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)525 adapter->ixgbe_ieee_ets->prio_tc[i] =526 IEEE_8021QAZ_MAX_TCS;527 /* if possible update UP2TC mappings from HW */528 ixgbe_dcb_read_rtrup2tc(&adapter->hw,529 adapter->ixgbe_ieee_ets->prio_tc);530 }531 532 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {533 if (ets->prio_tc[i] > max_tc)534 max_tc = ets->prio_tc[i];535 if (ets->prio_tc[i] != adapter->ixgbe_ieee_ets->prio_tc[i])536 map_chg = 1;537 }538 539 memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));540 541 if (max_tc)542 max_tc++;543 544 if (max_tc > adapter->dcb_cfg.num_tcs.pg_tcs)545 return -EINVAL;546 547 if (max_tc != adapter->hw_tcs) {548 err = ixgbe_setup_tc(dev, max_tc);549 if (err)550 return err;551 } else if (map_chg) {552 ixgbe_dcbnl_devreset(dev);553 }554 555 return ixgbe_dcb_hw_ets(&adapter->hw, ets, max_frame);556}557 558static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev,559 struct ieee_pfc *pfc)560{561 struct ixgbe_adapter *adapter = netdev_priv(dev);562 struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc;563 int i;564 565 pfc->pfc_cap = adapter->dcb_cfg.num_tcs.pfc_tcs;566 567 /* No IEEE PFC settings available */568 if (!my_pfc)569 return 0;570 571 pfc->pfc_en = my_pfc->pfc_en;572 pfc->mbc = my_pfc->mbc;573 pfc->delay = my_pfc->delay;574 575 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {576 pfc->requests[i] = adapter->stats.pxoffrxc[i];577 pfc->indications[i] = adapter->stats.pxofftxc[i];578 }579 580 return 0;581}582 583static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev,584 struct ieee_pfc *pfc)585{586 struct ixgbe_adapter *adapter = netdev_priv(dev);587 struct ixgbe_hw *hw = &adapter->hw;588 u8 *prio_tc;589 int err;590 591 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))592 return -EINVAL;593 594 if (!adapter->ixgbe_ieee_pfc) {595 adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc),596 GFP_KERNEL);597 if (!adapter->ixgbe_ieee_pfc)598 return -ENOMEM;599 }600 601 prio_tc = adapter->ixgbe_ieee_ets->prio_tc;602 memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc));603 604 /* Enable link flow control parameters if PFC is disabled */605 if (pfc->pfc_en)606 err = ixgbe_dcb_hw_pfc_config(hw, pfc->pfc_en, prio_tc);607 else608 err = hw->mac.ops.fc_enable(hw);609 610 ixgbe_set_rx_drop_en(adapter);611 612 return err;613}614 615static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev,616 struct dcb_app *app)617{618 struct ixgbe_adapter *adapter = netdev_priv(dev);619 int err;620 621 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))622 return -EINVAL;623 624 err = dcb_ieee_setapp(dev, app);625 if (err)626 return err;627 628#ifdef IXGBE_FCOE629 if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&630 app->protocol == ETH_P_FCOE) {631 u8 app_mask = dcb_ieee_getapp_mask(dev, app);632 633 if (app_mask & BIT(adapter->fcoe.up))634 return 0;635 636 adapter->fcoe.up = app->priority;637 ixgbe_dcbnl_devreset(dev);638 }639#endif640 641 /* VF devices should use default UP when available */642 if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&643 app->protocol == 0) {644 int vf;645 646 adapter->default_up = app->priority;647 648 for (vf = 0; vf < adapter->num_vfs; vf++) {649 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];650 651 if (!vfinfo->pf_qos)652 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,653 app->priority, vf);654 }655 }656 657 return 0;658}659 660static int ixgbe_dcbnl_ieee_delapp(struct net_device *dev,661 struct dcb_app *app)662{663 struct ixgbe_adapter *adapter = netdev_priv(dev);664 int err;665 666 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))667 return -EINVAL;668 669 err = dcb_ieee_delapp(dev, app);670 671#ifdef IXGBE_FCOE672 if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&673 app->protocol == ETH_P_FCOE) {674 u8 app_mask = dcb_ieee_getapp_mask(dev, app);675 676 if (app_mask & BIT(adapter->fcoe.up))677 return 0;678 679 adapter->fcoe.up = app_mask ?680 ffs(app_mask) - 1 : IXGBE_FCOE_DEFTC;681 ixgbe_dcbnl_devreset(dev);682 }683#endif684 /* IF default priority is being removed clear VF default UP */685 if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&686 app->protocol == 0 && adapter->default_up == app->priority) {687 int vf;688 long unsigned int app_mask = dcb_ieee_getapp_mask(dev, app);689 int qos = app_mask ? find_first_bit(&app_mask, 8) : 0;690 691 adapter->default_up = qos;692 693 for (vf = 0; vf < adapter->num_vfs; vf++) {694 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];695 696 if (!vfinfo->pf_qos)697 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,698 qos, vf);699 }700 }701 702 return err;703}704 705static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev)706{707 struct ixgbe_adapter *adapter = netdev_priv(dev);708 return adapter->dcbx_cap;709}710 711static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)712{713 struct ixgbe_adapter *adapter = netdev_priv(dev);714 struct ieee_ets ets = {0};715 struct ieee_pfc pfc = {0};716 int err = 0;717 718 /* no support for LLD_MANAGED modes or CEE+IEEE */719 if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||720 ((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||721 !(mode & DCB_CAP_DCBX_HOST))722 return 1;723 724 if (mode == adapter->dcbx_cap)725 return 0;726 727 adapter->dcbx_cap = mode;728 729 /* ETS and PFC defaults */730 ets.ets_cap = 8;731 pfc.pfc_cap = 8;732 733 if (mode & DCB_CAP_DCBX_VER_IEEE) {734 ixgbe_dcbnl_ieee_setets(dev, &ets);735 ixgbe_dcbnl_ieee_setpfc(dev, &pfc);736 } else if (mode & DCB_CAP_DCBX_VER_CEE) {737 u8 mask = BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG;738 739 adapter->dcb_set_bitmap |= mask;740 ixgbe_dcbnl_set_all(dev);741 } else {742 /* Drop into single TC mode strict priority as this743 * indicates CEE and IEEE versions are disabled744 */745 ixgbe_dcbnl_ieee_setets(dev, &ets);746 ixgbe_dcbnl_ieee_setpfc(dev, &pfc);747 err = ixgbe_setup_tc(dev, 0);748 }749 750 return err ? 1 : 0;751}752 753const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops = {754 .ieee_getets = ixgbe_dcbnl_ieee_getets,755 .ieee_setets = ixgbe_dcbnl_ieee_setets,756 .ieee_getpfc = ixgbe_dcbnl_ieee_getpfc,757 .ieee_setpfc = ixgbe_dcbnl_ieee_setpfc,758 .ieee_setapp = ixgbe_dcbnl_ieee_setapp,759 .ieee_delapp = ixgbe_dcbnl_ieee_delapp,760 .getstate = ixgbe_dcbnl_get_state,761 .setstate = ixgbe_dcbnl_set_state,762 .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,763 .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,764 .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,765 .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,766 .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,767 .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,768 .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,769 .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,770 .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,771 .setpfccfg = ixgbe_dcbnl_set_pfc_cfg,772 .getpfccfg = ixgbe_dcbnl_get_pfc_cfg,773 .setall = ixgbe_dcbnl_set_all,774 .getcap = ixgbe_dcbnl_getcap,775 .getnumtcs = ixgbe_dcbnl_getnumtcs,776 .setnumtcs = ixgbe_dcbnl_setnumtcs,777 .getpfcstate = ixgbe_dcbnl_getpfcstate,778 .setpfcstate = ixgbe_dcbnl_setpfcstate,779 .getapp = ixgbe_dcbnl_getapp,780 .getdcbx = ixgbe_dcbnl_getdcbx,781 .setdcbx = ixgbe_dcbnl_setdcbx,782};783