1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (C) 2019-2021, Intel Corporation. */ 3 4 #include "ice_vsi_vlan_lib.h" 5 #include "ice_lib.h" 6 #include "ice_fltr.h" 7 #include "ice.h" 8 9 static void print_invalid_tpid(struct ice_vsi *vsi, u16 tpid) 10 { 11 dev_err(ice_pf_to_dev(vsi->back), "%s %d specified invalid VLAN tpid 0x%04x\n", 12 ice_vsi_type_str(vsi->type), vsi->idx, tpid); 13 } 14 15 /** 16 * validate_vlan - check if the ice_vlan passed in is valid 17 * @vsi: VSI used for printing error message 18 * @vlan: ice_vlan structure to validate 19 * 20 * Return true if the VLAN TPID is valid or if the VLAN TPID is 0 and the VLAN 21 * VID is 0, which allows for non-zero VLAN filters with the specified VLAN TPID 22 * and untagged VLAN 0 filters to be added to the prune list respectively. 23 */ 24 static bool validate_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan) 25 { 26 if (vlan->tpid != ETH_P_8021Q && vlan->tpid != ETH_P_8021AD && 27 vlan->tpid != ETH_P_QINQ1 && (vlan->tpid || vlan->vid)) { 28 print_invalid_tpid(vsi, vlan->tpid); 29 return false; 30 } 31 32 return true; 33 } 34 35 /** 36 * ice_vsi_add_vlan - default add VLAN implementation for all VSI types 37 * @vsi: VSI being configured 38 * @vlan: VLAN filter to add 39 */ 40 int ice_vsi_add_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan) 41 { 42 int err; 43 44 if (!validate_vlan(vsi, vlan)) 45 return -EINVAL; 46 47 err = ice_fltr_add_vlan(vsi, vlan); 48 if (!err) 49 vsi->num_vlan++; 50 else if (err == -EEXIST) 51 err = 0; 52 else 53 dev_err(ice_pf_to_dev(vsi->back), "Failure Adding VLAN %d on VSI %i, status %d\n", 54 vlan->vid, vsi->vsi_num, err); 55 56 return err; 57 } 58 59 /** 60 * ice_vsi_del_vlan - default del VLAN implementation for all VSI types 61 * @vsi: VSI being configured 62 * @vlan: VLAN filter to delete 63 */ 64 int ice_vsi_del_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan) 65 { 66 struct ice_pf *pf = vsi->back; 67 struct device *dev; 68 int err; 69 70 if (!validate_vlan(vsi, vlan)) 71 return -EINVAL; 72 73 dev = ice_pf_to_dev(pf); 74 75 err = ice_fltr_remove_vlan(vsi, vlan); 76 if (!err) 77 vsi->num_vlan--; 78 else if (err == -ENOENT || err == -EBUSY) 79 err = 0; 80 else 81 dev_err(dev, "Error removing VLAN %d on VSI %i error: %d\n", 82 vlan->vid, vsi->vsi_num, err); 83 84 return err; 85 } 86 87 /** 88 * ice_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx 89 * @vsi: the VSI being changed 90 */ 91 static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi) 92 { 93 struct ice_hw *hw = &vsi->back->hw; 94 struct ice_vsi_ctx *ctxt; 95 int err; 96 97 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 98 if (!ctxt) 99 return -ENOMEM; 100 101 /* Here we are configuring the VSI to let the driver add VLAN tags by 102 * setting inner_vlan_flags to ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL. The actual VLAN tag 103 * insertion happens in the Tx hot path, in ice_tx_map. 104 */ 105 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL; 106 107 /* Preserve existing VLAN strip setting */ 108 ctxt->info.inner_vlan_flags |= (vsi->info.inner_vlan_flags & 109 ICE_AQ_VSI_INNER_VLAN_EMODE_M); 110 111 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); 112 113 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 114 if (err) { 115 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN insert failed, err %d aq_err %s\n", 116 err, ice_aq_str(hw->adminq.sq_last_status)); 117 goto out; 118 } 119 120 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags; 121 out: 122 kfree(ctxt); 123 return err; 124 } 125 126 /** 127 * ice_vsi_manage_vlan_stripping - Manage VLAN stripping for the VSI for Rx 128 * @vsi: the VSI being changed 129 * @ena: boolean value indicating if this is a enable or disable request 130 */ 131 static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) 132 { 133 struct ice_hw *hw = &vsi->back->hw; 134 struct ice_vsi_ctx *ctxt; 135 u8 *ivf; 136 int err; 137 138 /* do not allow modifying VLAN stripping when a port VLAN is configured 139 * on this VSI 140 */ 141 if (vsi->info.port_based_inner_vlan) 142 return 0; 143 144 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 145 if (!ctxt) 146 return -ENOMEM; 147 148 ivf = &ctxt->info.inner_vlan_flags; 149 150 /* Here we are configuring what the VSI should do with the VLAN tag in 151 * the Rx packet. We can either leave the tag in the packet or put it in 152 * the Rx descriptor. 153 */ 154 if (ena) { 155 /* Strip VLAN tag from Rx packet and put it in the desc */ 156 *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M, 157 ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH); 158 } else { 159 /* Disable stripping. Leave tag in packet */ 160 *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M, 161 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING); 162 } 163 164 /* Allow all packets untagged/tagged */ 165 *ivf |= ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL; 166 167 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); 168 169 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 170 if (err) { 171 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN strip failed, ena = %d err %d aq_err %s\n", 172 ena, err, ice_aq_str(hw->adminq.sq_last_status)); 173 goto out; 174 } 175 176 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags; 177 out: 178 kfree(ctxt); 179 return err; 180 } 181 182 int ice_vsi_ena_inner_stripping(struct ice_vsi *vsi, const u16 tpid) 183 { 184 if (tpid != ETH_P_8021Q) { 185 print_invalid_tpid(vsi, tpid); 186 return -EINVAL; 187 } 188 189 return ice_vsi_manage_vlan_stripping(vsi, true); 190 } 191 192 int ice_vsi_dis_inner_stripping(struct ice_vsi *vsi) 193 { 194 return ice_vsi_manage_vlan_stripping(vsi, false); 195 } 196 197 int ice_vsi_ena_inner_insertion(struct ice_vsi *vsi, const u16 tpid) 198 { 199 if (tpid != ETH_P_8021Q) { 200 print_invalid_tpid(vsi, tpid); 201 return -EINVAL; 202 } 203 204 return ice_vsi_manage_vlan_insertion(vsi); 205 } 206 207 int ice_vsi_dis_inner_insertion(struct ice_vsi *vsi) 208 { 209 return ice_vsi_manage_vlan_insertion(vsi); 210 } 211 212 static void 213 ice_save_vlan_info(struct ice_aqc_vsi_props *info, 214 struct ice_vsi_vlan_info *vlan) 215 { 216 vlan->sw_flags2 = info->sw_flags2; 217 vlan->inner_vlan_flags = info->inner_vlan_flags; 218 vlan->outer_vlan_flags = info->outer_vlan_flags; 219 } 220 221 static void 222 ice_restore_vlan_info(struct ice_aqc_vsi_props *info, 223 struct ice_vsi_vlan_info *vlan) 224 { 225 info->sw_flags2 = vlan->sw_flags2; 226 info->inner_vlan_flags = vlan->inner_vlan_flags; 227 info->outer_vlan_flags = vlan->outer_vlan_flags; 228 } 229 230 /** 231 * __ice_vsi_set_inner_port_vlan - set port VLAN VSI context settings to enable a port VLAN 232 * @vsi: the VSI to update 233 * @pvid_info: VLAN ID and QoS used to set the PVID VSI context field 234 */ 235 static int __ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, u16 pvid_info) 236 { 237 struct ice_hw *hw = &vsi->back->hw; 238 struct ice_aqc_vsi_props *info; 239 struct ice_vsi_ctx *ctxt; 240 int ret; 241 242 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 243 if (!ctxt) 244 return -ENOMEM; 245 246 ice_save_vlan_info(&vsi->info, &vsi->vlan_info); 247 ctxt->info = vsi->info; 248 info = &ctxt->info; 249 info->inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ACCEPTUNTAGGED | 250 ICE_AQ_VSI_INNER_VLAN_INSERT_PVID | 251 ICE_AQ_VSI_INNER_VLAN_EMODE_STR; 252 info->sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 253 254 info->port_based_inner_vlan = cpu_to_le16(pvid_info); 255 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | 256 ICE_AQ_VSI_PROP_SW_VALID); 257 258 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 259 if (ret) { 260 dev_info(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n", 261 ret, ice_aq_str(hw->adminq.sq_last_status)); 262 goto out; 263 } 264 265 vsi->info.inner_vlan_flags = info->inner_vlan_flags; 266 vsi->info.sw_flags2 = info->sw_flags2; 267 vsi->info.port_based_inner_vlan = info->port_based_inner_vlan; 268 out: 269 kfree(ctxt); 270 return ret; 271 } 272 273 int ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan) 274 { 275 u16 port_vlan_info; 276 277 if (vlan->tpid != ETH_P_8021Q) 278 return -EINVAL; 279 280 if (vlan->prio > 7) 281 return -EINVAL; 282 283 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT); 284 285 return __ice_vsi_set_inner_port_vlan(vsi, port_vlan_info); 286 } 287 288 int ice_vsi_clear_inner_port_vlan(struct ice_vsi *vsi) 289 { 290 struct ice_hw *hw = &vsi->back->hw; 291 struct ice_aqc_vsi_props *info; 292 struct ice_vsi_ctx *ctxt; 293 int ret; 294 295 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 296 if (!ctxt) 297 return -ENOMEM; 298 299 ice_restore_vlan_info(&vsi->info, &vsi->vlan_info); 300 vsi->info.port_based_inner_vlan = 0; 301 ctxt->info = vsi->info; 302 info = &ctxt->info; 303 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID | 304 ICE_AQ_VSI_PROP_SW_VALID); 305 306 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 307 if (ret) 308 dev_err(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n", 309 ret, ice_aq_str(hw->adminq.sq_last_status)); 310 311 kfree(ctxt); 312 return ret; 313 } 314 315 /** 316 * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI 317 * @vsi: VSI to enable or disable VLAN pruning on 318 * @ena: set to true to enable VLAN pruning and false to disable it 319 * 320 * returns 0 if VSI is updated, negative otherwise 321 */ 322 static int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena) 323 { 324 struct ice_vsi_ctx *ctxt; 325 struct ice_pf *pf; 326 int status; 327 328 if (!vsi) 329 return -EINVAL; 330 331 /* Don't enable VLAN pruning if the netdev is currently in promiscuous 332 * mode. VLAN pruning will be enabled when the interface exits 333 * promiscuous mode if any VLAN filters are active. 334 */ 335 if (vsi->netdev && vsi->netdev->flags & IFF_PROMISC && ena) 336 return 0; 337 338 pf = vsi->back; 339 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 340 if (!ctxt) 341 return -ENOMEM; 342 343 ctxt->info = vsi->info; 344 345 if (ena) 346 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 347 else 348 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 349 350 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); 351 352 status = ice_update_vsi(&pf->hw, vsi->idx, ctxt, NULL); 353 if (status) { 354 netdev_err(vsi->netdev, "%sabling VLAN pruning on VSI handle: %d, VSI HW ID: %d failed, err = %d, aq_err = %s\n", 355 ena ? "En" : "Dis", vsi->idx, vsi->vsi_num, status, 356 ice_aq_str(pf->hw.adminq.sq_last_status)); 357 goto err_out; 358 } 359 360 vsi->info.sw_flags2 = ctxt->info.sw_flags2; 361 362 kfree(ctxt); 363 return 0; 364 365 err_out: 366 kfree(ctxt); 367 return status; 368 } 369 370 int ice_vsi_ena_rx_vlan_filtering(struct ice_vsi *vsi) 371 { 372 return ice_cfg_vlan_pruning(vsi, true); 373 } 374 375 int ice_vsi_dis_rx_vlan_filtering(struct ice_vsi *vsi) 376 { 377 return ice_cfg_vlan_pruning(vsi, false); 378 } 379 380 static int ice_cfg_vlan_antispoof(struct ice_vsi *vsi, bool enable) 381 { 382 struct ice_vsi_ctx *ctx; 383 int err; 384 385 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 386 if (!ctx) 387 return -ENOMEM; 388 389 ctx->info.sec_flags = vsi->info.sec_flags; 390 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); 391 392 if (enable) 393 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 394 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S; 395 else 396 ctx->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << 397 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); 398 399 err = ice_update_vsi(&vsi->back->hw, vsi->idx, ctx, NULL); 400 if (err) 401 dev_err(ice_pf_to_dev(vsi->back), "Failed to configure Tx VLAN anti-spoof %s for VSI %d, error %d\n", 402 enable ? "ON" : "OFF", vsi->vsi_num, err); 403 else 404 vsi->info.sec_flags = ctx->info.sec_flags; 405 406 kfree(ctx); 407 408 return err; 409 } 410 411 int ice_vsi_ena_tx_vlan_filtering(struct ice_vsi *vsi) 412 { 413 return ice_cfg_vlan_antispoof(vsi, true); 414 } 415 416 int ice_vsi_dis_tx_vlan_filtering(struct ice_vsi *vsi) 417 { 418 return ice_cfg_vlan_antispoof(vsi, false); 419 } 420 421 /** 422 * tpid_to_vsi_outer_vlan_type - convert from TPID to VSI context based tag_type 423 * @tpid: tpid used to translate into VSI context based tag_type 424 * @tag_type: output variable to hold the VSI context based tag type 425 */ 426 static int tpid_to_vsi_outer_vlan_type(u16 tpid, u8 *tag_type) 427 { 428 switch (tpid) { 429 case ETH_P_8021Q: 430 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_8100; 431 break; 432 case ETH_P_8021AD: 433 *tag_type = ICE_AQ_VSI_OUTER_TAG_STAG; 434 break; 435 case ETH_P_QINQ1: 436 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_9100; 437 break; 438 default: 439 *tag_type = 0; 440 return -EINVAL; 441 } 442 443 return 0; 444 } 445 446 /** 447 * ice_vsi_ena_outer_stripping - enable outer VLAN stripping 448 * @vsi: VSI to configure 449 * @tpid: TPID to enable outer VLAN stripping for 450 * 451 * Enable outer VLAN stripping via VSI context. This function should only be 452 * used if DVM is supported. Also, this function should never be called directly 453 * as it should be part of ice_vsi_vlan_ops if it's needed. 454 * 455 * Since the VSI context only supports a single TPID for insertion and 456 * stripping, setting the TPID for stripping will affect the TPID for insertion. 457 * Callers need to be aware of this limitation. 458 * 459 * Only modify outer VLAN stripping settings and the VLAN TPID. Outer VLAN 460 * insertion settings are unmodified. 461 * 462 * This enables hardware to strip a VLAN tag with the specified TPID to be 463 * stripped from the packet and placed in the receive descriptor. 464 */ 465 int ice_vsi_ena_outer_stripping(struct ice_vsi *vsi, u16 tpid) 466 { 467 struct ice_hw *hw = &vsi->back->hw; 468 struct ice_vsi_ctx *ctxt; 469 u8 tag_type; 470 int err; 471 472 /* do not allow modifying VLAN stripping when a port VLAN is configured 473 * on this VSI 474 */ 475 if (vsi->info.port_based_outer_vlan) 476 return 0; 477 478 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type)) 479 return -EINVAL; 480 481 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 482 if (!ctxt) 483 return -ENOMEM; 484 485 ctxt->info.valid_sections = 486 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID); 487 /* clear current outer VLAN strip settings */ 488 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags & 489 ~(ICE_AQ_VSI_OUTER_VLAN_EMODE_M | ICE_AQ_VSI_OUTER_TAG_TYPE_M); 490 ctxt->info.outer_vlan_flags |= 491 ((ICE_AQ_VSI_OUTER_VLAN_EMODE_SHOW_BOTH << 492 ICE_AQ_VSI_OUTER_VLAN_EMODE_S) | 493 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) & 494 ICE_AQ_VSI_OUTER_TAG_TYPE_M)); 495 496 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 497 if (err) 498 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN stripping failed, err %d aq_err %s\n", 499 err, ice_aq_str(hw->adminq.sq_last_status)); 500 else 501 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags; 502 503 kfree(ctxt); 504 return err; 505 } 506 507 /** 508 * ice_vsi_dis_outer_stripping - disable outer VLAN stripping 509 * @vsi: VSI to configure 510 * 511 * Disable outer VLAN stripping via VSI context. This function should only be 512 * used if DVM is supported. Also, this function should never be called directly 513 * as it should be part of ice_vsi_vlan_ops if it's needed. 514 * 515 * Only modify the outer VLAN stripping settings. The VLAN TPID and outer VLAN 516 * insertion settings are unmodified. 517 * 518 * This tells the hardware to not strip any VLAN tagged packets, thus leaving 519 * them in the packet. This enables software offloaded VLAN stripping and 520 * disables hardware offloaded VLAN stripping. 521 */ 522 int ice_vsi_dis_outer_stripping(struct ice_vsi *vsi) 523 { 524 struct ice_hw *hw = &vsi->back->hw; 525 struct ice_vsi_ctx *ctxt; 526 int err; 527 528 if (vsi->info.port_based_outer_vlan) 529 return 0; 530 531 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 532 if (!ctxt) 533 return -ENOMEM; 534 535 ctxt->info.valid_sections = 536 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID); 537 /* clear current outer VLAN strip settings */ 538 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags & 539 ~ICE_AQ_VSI_OUTER_VLAN_EMODE_M; 540 ctxt->info.outer_vlan_flags |= ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING << 541 ICE_AQ_VSI_OUTER_VLAN_EMODE_S; 542 543 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 544 if (err) 545 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN stripping failed, err %d aq_err %s\n", 546 err, ice_aq_str(hw->adminq.sq_last_status)); 547 else 548 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags; 549 550 kfree(ctxt); 551 return err; 552 } 553 554 /** 555 * ice_vsi_ena_outer_insertion - enable outer VLAN insertion 556 * @vsi: VSI to configure 557 * @tpid: TPID to enable outer VLAN insertion for 558 * 559 * Enable outer VLAN insertion via VSI context. This function should only be 560 * used if DVM is supported. Also, this function should never be called directly 561 * as it should be part of ice_vsi_vlan_ops if it's needed. 562 * 563 * Since the VSI context only supports a single TPID for insertion and 564 * stripping, setting the TPID for insertion will affect the TPID for stripping. 565 * Callers need to be aware of this limitation. 566 * 567 * Only modify outer VLAN insertion settings and the VLAN TPID. Outer VLAN 568 * stripping settings are unmodified. 569 * 570 * This allows a VLAN tag with the specified TPID to be inserted in the transmit 571 * descriptor. 572 */ 573 int ice_vsi_ena_outer_insertion(struct ice_vsi *vsi, u16 tpid) 574 { 575 struct ice_hw *hw = &vsi->back->hw; 576 struct ice_vsi_ctx *ctxt; 577 u8 tag_type; 578 int err; 579 580 if (vsi->info.port_based_outer_vlan) 581 return 0; 582 583 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type)) 584 return -EINVAL; 585 586 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 587 if (!ctxt) 588 return -ENOMEM; 589 590 ctxt->info.valid_sections = 591 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID); 592 /* clear current outer VLAN insertion settings */ 593 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags & 594 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT | 595 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC | 596 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M | 597 ICE_AQ_VSI_OUTER_TAG_TYPE_M); 598 ctxt->info.outer_vlan_flags |= 599 ((ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL << 600 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) & 601 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M) | 602 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) & 603 ICE_AQ_VSI_OUTER_TAG_TYPE_M); 604 605 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 606 if (err) 607 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN insertion failed, err %d aq_err %s\n", 608 err, ice_aq_str(hw->adminq.sq_last_status)); 609 else 610 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags; 611 612 kfree(ctxt); 613 return err; 614 } 615 616 /** 617 * ice_vsi_dis_outer_insertion - disable outer VLAN insertion 618 * @vsi: VSI to configure 619 * 620 * Disable outer VLAN insertion via VSI context. This function should only be 621 * used if DVM is supported. Also, this function should never be called directly 622 * as it should be part of ice_vsi_vlan_ops if it's needed. 623 * 624 * Only modify the outer VLAN insertion settings. The VLAN TPID and outer VLAN 625 * settings are unmodified. 626 * 627 * This tells the hardware to not allow any VLAN tagged packets in the transmit 628 * descriptor. This enables software offloaded VLAN insertion and disables 629 * hardware offloaded VLAN insertion. 630 */ 631 int ice_vsi_dis_outer_insertion(struct ice_vsi *vsi) 632 { 633 struct ice_hw *hw = &vsi->back->hw; 634 struct ice_vsi_ctx *ctxt; 635 int err; 636 637 if (vsi->info.port_based_outer_vlan) 638 return 0; 639 640 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 641 if (!ctxt) 642 return -ENOMEM; 643 644 ctxt->info.valid_sections = 645 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID); 646 /* clear current outer VLAN insertion settings */ 647 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags & 648 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT | 649 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M); 650 ctxt->info.outer_vlan_flags |= 651 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC | 652 ((ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL << 653 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) & 654 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M); 655 656 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 657 if (err) 658 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN insertion failed, err %d aq_err %s\n", 659 err, ice_aq_str(hw->adminq.sq_last_status)); 660 else 661 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags; 662 663 kfree(ctxt); 664 return err; 665 } 666 667 /** 668 * __ice_vsi_set_outer_port_vlan - set the outer port VLAN and related settings 669 * @vsi: VSI to configure 670 * @vlan_info: packed u16 that contains the VLAN prio and ID 671 * @tpid: TPID of the port VLAN 672 * 673 * Set the port VLAN prio, ID, and TPID. 674 * 675 * Enable VLAN pruning so the VSI doesn't receive any traffic that doesn't match 676 * a VLAN prune rule. The caller should take care to add a VLAN prune rule that 677 * matches the port VLAN ID and TPID. 678 * 679 * Tell hardware to strip outer VLAN tagged packets on receive and don't put 680 * them in the receive descriptor. VSI(s) in port VLANs should not be aware of 681 * the port VLAN ID or TPID they are assigned to. 682 * 683 * Tell hardware to prevent outer VLAN tag insertion on transmit and only allow 684 * untagged outer packets from the transmit descriptor. 685 * 686 * Also, tell the hardware to insert the port VLAN on transmit. 687 */ 688 static int 689 __ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, u16 vlan_info, u16 tpid) 690 { 691 struct ice_hw *hw = &vsi->back->hw; 692 struct ice_vsi_ctx *ctxt; 693 u8 tag_type; 694 int err; 695 696 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type)) 697 return -EINVAL; 698 699 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 700 if (!ctxt) 701 return -ENOMEM; 702 703 ice_save_vlan_info(&vsi->info, &vsi->vlan_info); 704 ctxt->info = vsi->info; 705 706 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; 707 708 ctxt->info.port_based_outer_vlan = cpu_to_le16(vlan_info); 709 ctxt->info.outer_vlan_flags = 710 (ICE_AQ_VSI_OUTER_VLAN_EMODE_SHOW << 711 ICE_AQ_VSI_OUTER_VLAN_EMODE_S) | 712 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) & 713 ICE_AQ_VSI_OUTER_TAG_TYPE_M) | 714 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC | 715 (ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ACCEPTUNTAGGED << 716 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) | 717 ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT; 718 719 ctxt->info.valid_sections = 720 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID | 721 ICE_AQ_VSI_PROP_SW_VALID); 722 723 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 724 if (err) { 725 dev_err(ice_pf_to_dev(vsi->back), "update VSI for setting outer port based VLAN failed, err %d aq_err %s\n", 726 err, ice_aq_str(hw->adminq.sq_last_status)); 727 } else { 728 vsi->info.port_based_outer_vlan = ctxt->info.port_based_outer_vlan; 729 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags; 730 vsi->info.sw_flags2 = ctxt->info.sw_flags2; 731 } 732 733 kfree(ctxt); 734 return err; 735 } 736 737 /** 738 * ice_vsi_set_outer_port_vlan - public version of __ice_vsi_set_outer_port_vlan 739 * @vsi: VSI to configure 740 * @vlan: ice_vlan structure used to set the port VLAN 741 * 742 * Set the outer port VLAN via VSI context. This function should only be 743 * used if DVM is supported. Also, this function should never be called directly 744 * as it should be part of ice_vsi_vlan_ops if it's needed. 745 * 746 * Use the ice_vlan structure passed in to set this VSI in a port VLAN. 747 */ 748 int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan) 749 { 750 u16 port_vlan_info; 751 752 if (vlan->prio > (VLAN_PRIO_MASK >> VLAN_PRIO_SHIFT)) 753 return -EINVAL; 754 755 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT); 756 757 return __ice_vsi_set_outer_port_vlan(vsi, port_vlan_info, vlan->tpid); 758 } 759 760 /** 761 * ice_vsi_clear_outer_port_vlan - clear outer port vlan 762 * @vsi: VSI to configure 763 * 764 * The function is restoring previously set vlan config (saved in 765 * vsi->vlan_info). Setting happens in port vlan configuration. 766 */ 767 int ice_vsi_clear_outer_port_vlan(struct ice_vsi *vsi) 768 { 769 struct ice_hw *hw = &vsi->back->hw; 770 struct ice_vsi_ctx *ctxt; 771 int err; 772 773 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); 774 if (!ctxt) 775 return -ENOMEM; 776 777 ice_restore_vlan_info(&vsi->info, &vsi->vlan_info); 778 vsi->info.port_based_outer_vlan = 0; 779 ctxt->info = vsi->info; 780 781 ctxt->info.valid_sections = 782 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID | 783 ICE_AQ_VSI_PROP_SW_VALID); 784 785 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL); 786 if (err) 787 dev_err(ice_pf_to_dev(vsi->back), "update VSI for clearing outer port based VLAN failed, err %d aq_err %s\n", 788 err, ice_aq_str(hw->adminq.sq_last_status)); 789 790 kfree(ctxt); 791 return err; 792 } 793