1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #include "i40e.h" 5 #include "i40e_lan_hmc.h" 6 #include "i40e_virtchnl_pf.h" 7 8 /*********************notification routines***********************/ 9 10 /** 11 * i40e_vc_vf_broadcast 12 * @pf: pointer to the PF structure 13 * @v_opcode: operation code 14 * @v_retval: return value 15 * @msg: pointer to the msg buffer 16 * @msglen: msg length 17 * 18 * send a message to all VFs on a given PF 19 **/ 20 static void i40e_vc_vf_broadcast(struct i40e_pf *pf, 21 enum virtchnl_ops v_opcode, 22 int v_retval, u8 *msg, 23 u16 msglen) 24 { 25 struct i40e_hw *hw = &pf->hw; 26 struct i40e_vf *vf = pf->vf; 27 int i; 28 29 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { 30 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 31 /* Not all vfs are enabled so skip the ones that are not */ 32 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 33 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 34 continue; 35 36 /* Ignore return value on purpose - a given VF may fail, but 37 * we need to keep going and send to all of them 38 */ 39 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 40 msg, msglen, NULL); 41 } 42 } 43 44 /** 45 * i40e_vc_link_speed2mbps 46 * converts i40e_aq_link_speed to integer value of Mbps 47 * @link_speed: the speed to convert 48 * 49 * return the speed as direct value of Mbps. 50 **/ 51 static u32 52 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed) 53 { 54 switch (link_speed) { 55 case I40E_LINK_SPEED_100MB: 56 return SPEED_100; 57 case I40E_LINK_SPEED_1GB: 58 return SPEED_1000; 59 case I40E_LINK_SPEED_2_5GB: 60 return SPEED_2500; 61 case I40E_LINK_SPEED_5GB: 62 return SPEED_5000; 63 case I40E_LINK_SPEED_10GB: 64 return SPEED_10000; 65 case I40E_LINK_SPEED_20GB: 66 return SPEED_20000; 67 case I40E_LINK_SPEED_25GB: 68 return SPEED_25000; 69 case I40E_LINK_SPEED_40GB: 70 return SPEED_40000; 71 case I40E_LINK_SPEED_UNKNOWN: 72 return SPEED_UNKNOWN; 73 } 74 return SPEED_UNKNOWN; 75 } 76 77 /** 78 * i40e_set_vf_link_state 79 * @vf: pointer to the VF structure 80 * @pfe: pointer to PF event structure 81 * @ls: pointer to link status structure 82 * 83 * set a link state on a single vf 84 **/ 85 static void i40e_set_vf_link_state(struct i40e_vf *vf, 86 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls) 87 { 88 u8 link_status = ls->link_info & I40E_AQ_LINK_UP; 89 90 if (vf->link_forced) 91 link_status = vf->link_up; 92 93 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { 94 pfe->event_data.link_event_adv.link_speed = link_status ? 95 i40e_vc_link_speed2mbps(ls->link_speed) : 0; 96 pfe->event_data.link_event_adv.link_status = link_status; 97 } else { 98 pfe->event_data.link_event.link_speed = link_status ? 99 i40e_virtchnl_link_speed(ls->link_speed) : 0; 100 pfe->event_data.link_event.link_status = link_status; 101 } 102 } 103 104 /** 105 * i40e_vc_notify_vf_link_state 106 * @vf: pointer to the VF structure 107 * 108 * send a link status message to a single VF 109 **/ 110 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 111 { 112 struct virtchnl_pf_event pfe; 113 struct i40e_pf *pf = vf->pf; 114 struct i40e_hw *hw = &pf->hw; 115 struct i40e_link_status *ls = &pf->hw.phy.link_info; 116 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 117 118 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 119 pfe.severity = PF_EVENT_SEVERITY_INFO; 120 121 i40e_set_vf_link_state(vf, &pfe, ls); 122 123 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 124 0, (u8 *)&pfe, sizeof(pfe), NULL); 125 } 126 127 /** 128 * i40e_vc_notify_link_state 129 * @pf: pointer to the PF structure 130 * 131 * send a link status message to all VFs on a given PF 132 **/ 133 void i40e_vc_notify_link_state(struct i40e_pf *pf) 134 { 135 int i; 136 137 for (i = 0; i < pf->num_alloc_vfs; i++) 138 i40e_vc_notify_vf_link_state(&pf->vf[i]); 139 } 140 141 /** 142 * i40e_vc_notify_reset 143 * @pf: pointer to the PF structure 144 * 145 * indicate a pending reset to all VFs on a given PF 146 **/ 147 void i40e_vc_notify_reset(struct i40e_pf *pf) 148 { 149 struct virtchnl_pf_event pfe; 150 151 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 152 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 153 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, 154 (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); 155 } 156 157 #ifdef CONFIG_PCI_IOV 158 void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev) 159 { 160 u16 vf_id; 161 u16 pos; 162 163 /* Continue only if this is a PF */ 164 if (!pdev->is_physfn) 165 return; 166 167 if (!pci_num_vf(pdev)) 168 return; 169 170 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 171 if (pos) { 172 struct pci_dev *vf_dev = NULL; 173 174 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id); 175 while ((vf_dev = pci_get_device(pdev->vendor, vf_id, vf_dev))) { 176 if (vf_dev->is_virtfn && vf_dev->physfn == pdev) 177 pci_restore_msi_state(vf_dev); 178 } 179 } 180 } 181 #endif /* CONFIG_PCI_IOV */ 182 183 /** 184 * i40e_vc_notify_vf_reset 185 * @vf: pointer to the VF structure 186 * 187 * indicate a pending reset to the given VF 188 **/ 189 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 190 { 191 struct virtchnl_pf_event pfe; 192 int abs_vf_id; 193 194 /* validate the request */ 195 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 196 return; 197 198 /* verify if the VF is in either init or active before proceeding */ 199 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 200 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 201 return; 202 203 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 204 205 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 206 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 207 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, 208 0, (u8 *)&pfe, 209 sizeof(struct virtchnl_pf_event), NULL); 210 } 211 /***********************misc routines*****************************/ 212 213 /** 214 * i40e_vc_reset_vf 215 * @vf: pointer to the VF info 216 * @notify_vf: notify vf about reset or not 217 * Reset VF handler. 218 **/ 219 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf) 220 { 221 struct i40e_pf *pf = vf->pf; 222 int i; 223 224 if (notify_vf) 225 i40e_vc_notify_vf_reset(vf); 226 227 /* We want to ensure that an actual reset occurs initiated after this 228 * function was called. However, we do not want to wait forever, so 229 * we'll give a reasonable time and print a message if we failed to 230 * ensure a reset. 231 */ 232 for (i = 0; i < 20; i++) { 233 /* If PF is in VFs releasing state reset VF is impossible, 234 * so leave it. 235 */ 236 if (test_bit(__I40E_VFS_RELEASING, pf->state)) 237 return; 238 if (i40e_reset_vf(vf, false)) 239 return; 240 usleep_range(10000, 20000); 241 } 242 243 if (notify_vf) 244 dev_warn(&vf->pf->pdev->dev, 245 "Failed to initiate reset for VF %d after 200 milliseconds\n", 246 vf->vf_id); 247 else 248 dev_dbg(&vf->pf->pdev->dev, 249 "Failed to initiate reset for VF %d after 200 milliseconds\n", 250 vf->vf_id); 251 } 252 253 /** 254 * i40e_vc_isvalid_vsi_id 255 * @vf: pointer to the VF info 256 * @vsi_id: VF relative VSI id 257 * 258 * check for the valid VSI id 259 **/ 260 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 261 { 262 struct i40e_pf *pf = vf->pf; 263 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 264 265 return (vsi && (vsi->vf_id == vf->vf_id)); 266 } 267 268 /** 269 * i40e_vc_isvalid_queue_id 270 * @vf: pointer to the VF info 271 * @vsi_id: vsi id 272 * @qid: vsi relative queue id 273 * 274 * check for the valid queue id 275 **/ 276 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 277 u16 qid) 278 { 279 struct i40e_pf *pf = vf->pf; 280 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 281 282 return (vsi && (qid < vsi->alloc_queue_pairs)); 283 } 284 285 /** 286 * i40e_vc_isvalid_vector_id 287 * @vf: pointer to the VF info 288 * @vector_id: VF relative vector id 289 * 290 * check for the valid vector id 291 **/ 292 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) 293 { 294 struct i40e_pf *pf = vf->pf; 295 296 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 297 } 298 299 /***********************vf resource mgmt routines*****************/ 300 301 /** 302 * i40e_vc_get_pf_queue_id 303 * @vf: pointer to the VF info 304 * @vsi_id: id of VSI as provided by the FW 305 * @vsi_queue_id: vsi relative queue id 306 * 307 * return PF relative queue id 308 **/ 309 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 310 u8 vsi_queue_id) 311 { 312 struct i40e_pf *pf = vf->pf; 313 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 314 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 315 316 if (!vsi) 317 return pf_queue_id; 318 319 if (le16_to_cpu(vsi->info.mapping_flags) & 320 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 321 pf_queue_id = 322 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 323 else 324 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 325 vsi_queue_id; 326 327 return pf_queue_id; 328 } 329 330 /** 331 * i40e_get_real_pf_qid 332 * @vf: pointer to the VF info 333 * @vsi_id: vsi id 334 * @queue_id: queue number 335 * 336 * wrapper function to get pf_queue_id handling ADq code as well 337 **/ 338 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) 339 { 340 int i; 341 342 if (vf->adq_enabled) { 343 /* Although VF considers all the queues(can be 1 to 16) as its 344 * own but they may actually belong to different VSIs(up to 4). 345 * We need to find which queues belongs to which VSI. 346 */ 347 for (i = 0; i < vf->num_tc; i++) { 348 if (queue_id < vf->ch[i].num_qps) { 349 vsi_id = vf->ch[i].vsi_id; 350 break; 351 } 352 /* find right queue id which is relative to a 353 * given VSI. 354 */ 355 queue_id -= vf->ch[i].num_qps; 356 } 357 } 358 359 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); 360 } 361 362 /** 363 * i40e_config_irq_link_list 364 * @vf: pointer to the VF info 365 * @vsi_id: id of VSI as given by the FW 366 * @vecmap: irq map info 367 * 368 * configure irq link list from the map 369 **/ 370 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 371 struct virtchnl_vector_map *vecmap) 372 { 373 unsigned long linklistmap = 0, tempmap; 374 struct i40e_pf *pf = vf->pf; 375 struct i40e_hw *hw = &pf->hw; 376 u16 vsi_queue_id, pf_queue_id; 377 enum i40e_queue_type qtype; 378 u16 next_q, vector_id, size; 379 u32 reg, reg_idx; 380 u16 itr_idx = 0; 381 382 vector_id = vecmap->vector_id; 383 /* setup the head */ 384 if (0 == vector_id) 385 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 386 else 387 reg_idx = I40E_VPINT_LNKLSTN( 388 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 389 (vector_id - 1)); 390 391 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 392 /* Special case - No queues mapped on this vector */ 393 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 394 goto irq_list_done; 395 } 396 tempmap = vecmap->rxq_map; 397 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 398 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 399 vsi_queue_id)); 400 } 401 402 tempmap = vecmap->txq_map; 403 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 404 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 405 vsi_queue_id + 1)); 406 } 407 408 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; 409 next_q = find_first_bit(&linklistmap, size); 410 if (unlikely(next_q == size)) 411 goto irq_list_done; 412 413 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 414 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 415 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); 416 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 417 418 wr32(hw, reg_idx, reg); 419 420 while (next_q < size) { 421 switch (qtype) { 422 case I40E_QUEUE_TYPE_RX: 423 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 424 itr_idx = vecmap->rxitr_idx; 425 break; 426 case I40E_QUEUE_TYPE_TX: 427 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 428 itr_idx = vecmap->txitr_idx; 429 break; 430 default: 431 break; 432 } 433 434 next_q = find_next_bit(&linklistmap, size, next_q + 1); 435 if (next_q < size) { 436 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 437 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 438 pf_queue_id = i40e_get_real_pf_qid(vf, 439 vsi_id, 440 vsi_queue_id); 441 } else { 442 pf_queue_id = I40E_QUEUE_END_OF_LIST; 443 qtype = 0; 444 } 445 446 /* format for the RQCTL & TQCTL regs is same */ 447 reg = (vector_id) | 448 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 449 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 450 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 451 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 452 wr32(hw, reg_idx, reg); 453 } 454 455 /* if the vf is running in polling mode and using interrupt zero, 456 * need to disable auto-mask on enabling zero interrupt for VFs. 457 */ 458 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 459 (vector_id == 0)) { 460 reg = rd32(hw, I40E_GLINT_CTL); 461 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 462 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 463 wr32(hw, I40E_GLINT_CTL, reg); 464 } 465 } 466 467 irq_list_done: 468 i40e_flush(hw); 469 } 470 471 /** 472 * i40e_release_rdma_qvlist 473 * @vf: pointer to the VF. 474 * 475 **/ 476 static void i40e_release_rdma_qvlist(struct i40e_vf *vf) 477 { 478 struct i40e_pf *pf = vf->pf; 479 struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info; 480 u32 msix_vf; 481 u32 i; 482 483 if (!vf->qvlist_info) 484 return; 485 486 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 487 for (i = 0; i < qvlist_info->num_vectors; i++) { 488 struct virtchnl_rdma_qv_info *qv_info; 489 u32 next_q_index, next_q_type; 490 struct i40e_hw *hw = &pf->hw; 491 u32 v_idx, reg_idx, reg; 492 493 qv_info = &qvlist_info->qv_info[i]; 494 if (!qv_info) 495 continue; 496 v_idx = qv_info->v_idx; 497 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 498 /* Figure out the queue after CEQ and make that the 499 * first queue. 500 */ 501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 502 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 503 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK, 504 reg); 505 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK, 506 reg); 507 508 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 509 reg = (next_q_index & 510 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 511 (next_q_type << 512 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 513 514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 515 } 516 } 517 kfree(vf->qvlist_info); 518 vf->qvlist_info = NULL; 519 } 520 521 /** 522 * i40e_config_rdma_qvlist 523 * @vf: pointer to the VF info 524 * @qvlist_info: queue and vector list 525 * 526 * Return 0 on success or < 0 on error 527 **/ 528 static int 529 i40e_config_rdma_qvlist(struct i40e_vf *vf, 530 struct virtchnl_rdma_qvlist_info *qvlist_info) 531 { 532 struct i40e_pf *pf = vf->pf; 533 struct i40e_hw *hw = &pf->hw; 534 struct virtchnl_rdma_qv_info *qv_info; 535 u32 v_idx, i, reg_idx, reg; 536 u32 next_q_idx, next_q_type; 537 size_t size; 538 u32 msix_vf; 539 int ret = 0; 540 541 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 542 543 if (qvlist_info->num_vectors > msix_vf) { 544 dev_warn(&pf->pdev->dev, 545 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 546 qvlist_info->num_vectors, 547 msix_vf); 548 ret = -EINVAL; 549 goto err_out; 550 } 551 552 kfree(vf->qvlist_info); 553 size = virtchnl_struct_size(vf->qvlist_info, qv_info, 554 qvlist_info->num_vectors); 555 vf->qvlist_info = kzalloc(size, GFP_KERNEL); 556 if (!vf->qvlist_info) { 557 ret = -ENOMEM; 558 goto err_out; 559 } 560 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 561 562 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 563 for (i = 0; i < qvlist_info->num_vectors; i++) { 564 qv_info = &qvlist_info->qv_info[i]; 565 if (!qv_info) 566 continue; 567 568 /* Validate vector id belongs to this vf */ 569 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 570 ret = -EINVAL; 571 goto err_free; 572 } 573 574 v_idx = qv_info->v_idx; 575 576 vf->qvlist_info->qv_info[i] = *qv_info; 577 578 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 579 /* We might be sharing the interrupt, so get the first queue 580 * index and type, push it down the list by adding the new 581 * queue on top. Also link it with the new queue in CEQCTL. 582 */ 583 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 584 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK, 585 reg); 586 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK, 587 reg); 588 589 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 590 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 591 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 592 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 593 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 594 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 595 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 596 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 597 598 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 599 reg = (qv_info->ceq_idx & 600 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 601 (I40E_QUEUE_TYPE_PE_CEQ << 602 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 603 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 604 } 605 606 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 607 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 608 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 609 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 610 611 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 612 } 613 } 614 615 return 0; 616 err_free: 617 kfree(vf->qvlist_info); 618 vf->qvlist_info = NULL; 619 err_out: 620 return ret; 621 } 622 623 /** 624 * i40e_config_vsi_tx_queue 625 * @vf: pointer to the VF info 626 * @vsi_id: id of VSI as provided by the FW 627 * @vsi_queue_id: vsi relative queue index 628 * @info: config. info 629 * 630 * configure tx queue 631 **/ 632 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 633 u16 vsi_queue_id, 634 struct virtchnl_txq_info *info) 635 { 636 struct i40e_pf *pf = vf->pf; 637 struct i40e_hw *hw = &pf->hw; 638 struct i40e_hmc_obj_txq tx_ctx; 639 struct i40e_vsi *vsi; 640 u16 pf_queue_id; 641 u32 qtx_ctl; 642 int ret = 0; 643 644 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 645 ret = -ENOENT; 646 goto error_context; 647 } 648 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 649 vsi = i40e_find_vsi_from_id(pf, vsi_id); 650 if (!vsi) { 651 ret = -ENOENT; 652 goto error_context; 653 } 654 655 /* clear the context structure first */ 656 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 657 658 /* only set the required fields */ 659 tx_ctx.base = info->dma_ring_addr / 128; 660 tx_ctx.qlen = info->ring_len; 661 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 662 tx_ctx.rdylist_act = 0; 663 tx_ctx.head_wb_ena = info->headwb_enabled; 664 tx_ctx.head_wb_addr = info->dma_headwb_addr; 665 666 /* clear the context in the HMC */ 667 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 668 if (ret) { 669 dev_err(&pf->pdev->dev, 670 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 671 pf_queue_id, ret); 672 ret = -ENOENT; 673 goto error_context; 674 } 675 676 /* set the context in the HMC */ 677 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 678 if (ret) { 679 dev_err(&pf->pdev->dev, 680 "Failed to set VF LAN Tx queue context %d error: %d\n", 681 pf_queue_id, ret); 682 ret = -ENOENT; 683 goto error_context; 684 } 685 686 /* associate this queue with the PCI VF function */ 687 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 688 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id); 689 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK, 690 vf->vf_id + hw->func_caps.vf_base_id); 691 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 692 i40e_flush(hw); 693 694 error_context: 695 return ret; 696 } 697 698 /** 699 * i40e_config_vsi_rx_queue 700 * @vf: pointer to the VF info 701 * @vsi_id: id of VSI as provided by the FW 702 * @vsi_queue_id: vsi relative queue index 703 * @info: config. info 704 * 705 * configure rx queue 706 **/ 707 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 708 u16 vsi_queue_id, 709 struct virtchnl_rxq_info *info) 710 { 711 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 712 struct i40e_pf *pf = vf->pf; 713 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 714 struct i40e_hw *hw = &pf->hw; 715 struct i40e_hmc_obj_rxq rx_ctx; 716 int ret = 0; 717 718 /* clear the context structure first */ 719 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 720 721 /* only set the required fields */ 722 rx_ctx.base = info->dma_ring_addr / 128; 723 rx_ctx.qlen = info->ring_len; 724 725 if (info->splithdr_enabled) { 726 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 727 I40E_RX_SPLIT_IP | 728 I40E_RX_SPLIT_TCP_UDP | 729 I40E_RX_SPLIT_SCTP; 730 /* header length validation */ 731 if (info->hdr_size > ((2 * 1024) - 64)) { 732 ret = -EINVAL; 733 goto error_param; 734 } 735 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 736 737 /* set split mode 10b */ 738 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 739 } 740 741 /* databuffer length validation */ 742 if (info->databuffer_size > ((16 * 1024) - 128)) { 743 ret = -EINVAL; 744 goto error_param; 745 } 746 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 747 748 /* max pkt. length validation */ 749 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 750 ret = -EINVAL; 751 goto error_param; 752 } 753 rx_ctx.rxmax = info->max_pkt_size; 754 755 /* if port VLAN is configured increase the max packet size */ 756 if (vsi->info.pvid) 757 rx_ctx.rxmax += VLAN_HLEN; 758 759 /* enable 32bytes desc always */ 760 rx_ctx.dsize = 1; 761 762 /* default values */ 763 rx_ctx.lrxqthresh = 1; 764 rx_ctx.crcstrip = 1; 765 rx_ctx.prefena = 1; 766 rx_ctx.l2tsel = 1; 767 768 /* clear the context in the HMC */ 769 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 770 if (ret) { 771 dev_err(&pf->pdev->dev, 772 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 773 pf_queue_id, ret); 774 ret = -ENOENT; 775 goto error_param; 776 } 777 778 /* set the context in the HMC */ 779 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 780 if (ret) { 781 dev_err(&pf->pdev->dev, 782 "Failed to set VF LAN Rx queue context %d error: %d\n", 783 pf_queue_id, ret); 784 ret = -ENOENT; 785 goto error_param; 786 } 787 788 error_param: 789 return ret; 790 } 791 792 /** 793 * i40e_alloc_vsi_res 794 * @vf: pointer to the VF info 795 * @idx: VSI index, applies only for ADq mode, zero otherwise 796 * 797 * alloc VF vsi context & resources 798 **/ 799 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 800 { 801 struct i40e_mac_filter *f = NULL; 802 struct i40e_pf *pf = vf->pf; 803 struct i40e_vsi *vsi; 804 u64 max_tx_rate = 0; 805 int ret = 0; 806 807 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 808 vf->vf_id); 809 810 if (!vsi) { 811 dev_err(&pf->pdev->dev, 812 "add vsi failed for VF %d, aq_err %d\n", 813 vf->vf_id, pf->hw.aq.asq_last_status); 814 ret = -ENOENT; 815 goto error_alloc_vsi_res; 816 } 817 818 if (!idx) { 819 u64 hena = i40e_pf_get_default_rss_hena(pf); 820 u8 broadcast[ETH_ALEN]; 821 822 vf->lan_vsi_idx = vsi->idx; 823 vf->lan_vsi_id = vsi->id; 824 /* If the port VLAN has been configured and then the 825 * VF driver was removed then the VSI port VLAN 826 * configuration was destroyed. Check if there is 827 * a port VLAN and restore the VSI configuration if 828 * needed. 829 */ 830 if (vf->port_vlan_id) 831 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 832 833 spin_lock_bh(&vsi->mac_filter_hash_lock); 834 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 835 f = i40e_add_mac_filter(vsi, 836 vf->default_lan_addr.addr); 837 if (!f) 838 dev_info(&pf->pdev->dev, 839 "Could not add MAC filter %pM for VF %d\n", 840 vf->default_lan_addr.addr, vf->vf_id); 841 } 842 eth_broadcast_addr(broadcast); 843 f = i40e_add_mac_filter(vsi, broadcast); 844 if (!f) 845 dev_info(&pf->pdev->dev, 846 "Could not allocate VF broadcast filter\n"); 847 spin_unlock_bh(&vsi->mac_filter_hash_lock); 848 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 849 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 850 /* program mac filter only for VF VSI */ 851 ret = i40e_sync_vsi_filters(vsi); 852 if (ret) 853 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 854 } 855 856 /* storing VSI index and id for ADq and don't apply the mac filter */ 857 if (vf->adq_enabled) { 858 vf->ch[idx].vsi_idx = vsi->idx; 859 vf->ch[idx].vsi_id = vsi->id; 860 } 861 862 /* Set VF bandwidth if specified */ 863 if (vf->tx_rate) { 864 max_tx_rate = vf->tx_rate; 865 } else if (vf->ch[idx].max_tx_rate) { 866 max_tx_rate = vf->ch[idx].max_tx_rate; 867 } 868 869 if (max_tx_rate) { 870 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 871 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 872 max_tx_rate, 0, NULL); 873 if (ret) 874 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 875 vf->vf_id, ret); 876 } 877 878 error_alloc_vsi_res: 879 return ret; 880 } 881 882 /** 883 * i40e_map_pf_queues_to_vsi 884 * @vf: pointer to the VF info 885 * 886 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 887 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 888 **/ 889 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 890 { 891 struct i40e_pf *pf = vf->pf; 892 struct i40e_hw *hw = &pf->hw; 893 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 894 u16 vsi_id, qps; 895 int i, j; 896 897 if (vf->adq_enabled) 898 num_tc = vf->num_tc; 899 900 for (i = 0; i < num_tc; i++) { 901 if (vf->adq_enabled) { 902 qps = vf->ch[i].num_qps; 903 vsi_id = vf->ch[i].vsi_id; 904 } else { 905 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 906 vsi_id = vf->lan_vsi_id; 907 } 908 909 for (j = 0; j < 7; j++) { 910 if (j * 2 >= qps) { 911 /* end of list */ 912 reg = 0x07FF07FF; 913 } else { 914 u16 qid = i40e_vc_get_pf_queue_id(vf, 915 vsi_id, 916 j * 2); 917 reg = qid; 918 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 919 (j * 2) + 1); 920 reg |= qid << 16; 921 } 922 i40e_write_rx_ctl(hw, 923 I40E_VSILAN_QTABLE(j, vsi_id), 924 reg); 925 } 926 } 927 } 928 929 /** 930 * i40e_map_pf_to_vf_queues 931 * @vf: pointer to the VF info 932 * 933 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 934 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 935 **/ 936 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 937 { 938 struct i40e_pf *pf = vf->pf; 939 struct i40e_hw *hw = &pf->hw; 940 u32 reg, total_qps = 0; 941 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 942 u16 vsi_id, qid; 943 int i, j; 944 945 if (vf->adq_enabled) 946 num_tc = vf->num_tc; 947 948 for (i = 0; i < num_tc; i++) { 949 if (vf->adq_enabled) { 950 qps = vf->ch[i].num_qps; 951 vsi_id = vf->ch[i].vsi_id; 952 } else { 953 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 954 vsi_id = vf->lan_vsi_id; 955 } 956 957 for (j = 0; j < qps; j++) { 958 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 959 960 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 961 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 962 reg); 963 total_qps++; 964 } 965 } 966 } 967 968 /** 969 * i40e_enable_vf_mappings 970 * @vf: pointer to the VF info 971 * 972 * enable VF mappings 973 **/ 974 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 975 { 976 struct i40e_pf *pf = vf->pf; 977 struct i40e_hw *hw = &pf->hw; 978 u32 reg; 979 980 /* Tell the hardware we're using noncontiguous mapping. HW requires 981 * that VF queues be mapped using this method, even when they are 982 * contiguous in real life 983 */ 984 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 985 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 986 987 /* enable VF vplan_qtable mappings */ 988 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 989 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 990 991 i40e_map_pf_to_vf_queues(vf); 992 i40e_map_pf_queues_to_vsi(vf); 993 994 i40e_flush(hw); 995 } 996 997 /** 998 * i40e_disable_vf_mappings 999 * @vf: pointer to the VF info 1000 * 1001 * disable VF mappings 1002 **/ 1003 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 1004 { 1005 struct i40e_pf *pf = vf->pf; 1006 struct i40e_hw *hw = &pf->hw; 1007 int i; 1008 1009 /* disable qp mappings */ 1010 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 1011 for (i = 0; i < I40E_MAX_VSI_QP; i++) 1012 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 1013 I40E_QUEUE_END_OF_LIST); 1014 i40e_flush(hw); 1015 } 1016 1017 /** 1018 * i40e_free_vf_res 1019 * @vf: pointer to the VF info 1020 * 1021 * free VF resources 1022 **/ 1023 static void i40e_free_vf_res(struct i40e_vf *vf) 1024 { 1025 struct i40e_pf *pf = vf->pf; 1026 struct i40e_hw *hw = &pf->hw; 1027 u32 reg_idx, reg; 1028 int i, j, msix_vf; 1029 1030 /* Start by disabling VF's configuration API to prevent the OS from 1031 * accessing the VF's VSI after it's freed / invalidated. 1032 */ 1033 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1034 1035 /* It's possible the VF had requeuested more queues than the default so 1036 * do the accounting here when we're about to free them. 1037 */ 1038 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1039 pf->queues_left += vf->num_queue_pairs - 1040 I40E_DEFAULT_QUEUES_PER_VF; 1041 } 1042 1043 /* free vsi & disconnect it from the parent uplink */ 1044 if (vf->lan_vsi_idx) { 1045 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1046 vf->lan_vsi_idx = 0; 1047 vf->lan_vsi_id = 0; 1048 } 1049 1050 /* do the accounting and remove additional ADq VSI's */ 1051 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1052 for (j = 0; j < vf->num_tc; j++) { 1053 /* At this point VSI0 is already released so don't 1054 * release it again and only clear their values in 1055 * structure variables 1056 */ 1057 if (j) 1058 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1059 vf->ch[j].vsi_idx = 0; 1060 vf->ch[j].vsi_id = 0; 1061 } 1062 } 1063 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1064 1065 /* disable interrupts so the VF starts in a known state */ 1066 for (i = 0; i < msix_vf; i++) { 1067 /* format is same for both registers */ 1068 if (0 == i) 1069 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1070 else 1071 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1072 (vf->vf_id)) 1073 + (i - 1)); 1074 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1075 i40e_flush(hw); 1076 } 1077 1078 /* clear the irq settings */ 1079 for (i = 0; i < msix_vf; i++) { 1080 /* format is same for both registers */ 1081 if (0 == i) 1082 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1083 else 1084 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1085 (vf->vf_id)) 1086 + (i - 1)); 1087 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1088 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1089 wr32(hw, reg_idx, reg); 1090 i40e_flush(hw); 1091 } 1092 /* reset some of the state variables keeping track of the resources */ 1093 vf->num_queue_pairs = 0; 1094 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1095 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1096 } 1097 1098 /** 1099 * i40e_alloc_vf_res 1100 * @vf: pointer to the VF info 1101 * 1102 * allocate VF resources 1103 **/ 1104 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1105 { 1106 struct i40e_pf *pf = vf->pf; 1107 int total_queue_pairs = 0; 1108 int ret, idx; 1109 1110 if (vf->num_req_queues && 1111 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1112 pf->num_vf_qps = vf->num_req_queues; 1113 else 1114 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1115 1116 /* allocate hw vsi context & associated resources */ 1117 ret = i40e_alloc_vsi_res(vf, 0); 1118 if (ret) 1119 goto error_alloc; 1120 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1121 1122 /* allocate additional VSIs based on tc information for ADq */ 1123 if (vf->adq_enabled) { 1124 if (pf->queues_left >= 1125 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1126 /* TC 0 always belongs to VF VSI */ 1127 for (idx = 1; idx < vf->num_tc; idx++) { 1128 ret = i40e_alloc_vsi_res(vf, idx); 1129 if (ret) 1130 goto error_alloc; 1131 } 1132 /* send correct number of queues */ 1133 total_queue_pairs = I40E_MAX_VF_QUEUES; 1134 } else { 1135 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1136 vf->vf_id); 1137 vf->adq_enabled = false; 1138 } 1139 } 1140 1141 /* We account for each VF to get a default number of queue pairs. If 1142 * the VF has now requested more, we need to account for that to make 1143 * certain we never request more queues than we actually have left in 1144 * HW. 1145 */ 1146 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1147 pf->queues_left -= 1148 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1149 1150 if (vf->trusted) 1151 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1152 else 1153 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1154 1155 /* store the total qps number for the runtime 1156 * VF req validation 1157 */ 1158 vf->num_queue_pairs = total_queue_pairs; 1159 1160 /* VF is now completely initialized */ 1161 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1162 1163 error_alloc: 1164 if (ret) 1165 i40e_free_vf_res(vf); 1166 1167 return ret; 1168 } 1169 1170 #define VF_DEVICE_STATUS 0xAA 1171 #define VF_TRANS_PENDING_MASK 0x20 1172 /** 1173 * i40e_quiesce_vf_pci 1174 * @vf: pointer to the VF structure 1175 * 1176 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1177 * if the transactions never clear. 1178 **/ 1179 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1180 { 1181 struct i40e_pf *pf = vf->pf; 1182 struct i40e_hw *hw = &pf->hw; 1183 int vf_abs_id, i; 1184 u32 reg; 1185 1186 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1187 1188 wr32(hw, I40E_PF_PCI_CIAA, 1189 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1190 for (i = 0; i < 100; i++) { 1191 reg = rd32(hw, I40E_PF_PCI_CIAD); 1192 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1193 return 0; 1194 udelay(1); 1195 } 1196 return -EIO; 1197 } 1198 1199 /** 1200 * __i40e_getnum_vf_vsi_vlan_filters 1201 * @vsi: pointer to the vsi 1202 * 1203 * called to get the number of VLANs offloaded on this VF 1204 **/ 1205 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1206 { 1207 struct i40e_mac_filter *f; 1208 u16 num_vlans = 0, bkt; 1209 1210 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1211 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1212 num_vlans++; 1213 } 1214 1215 return num_vlans; 1216 } 1217 1218 /** 1219 * i40e_getnum_vf_vsi_vlan_filters 1220 * @vsi: pointer to the vsi 1221 * 1222 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1223 **/ 1224 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1225 { 1226 int num_vlans; 1227 1228 spin_lock_bh(&vsi->mac_filter_hash_lock); 1229 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1230 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1231 1232 return num_vlans; 1233 } 1234 1235 /** 1236 * i40e_get_vlan_list_sync 1237 * @vsi: pointer to the VSI 1238 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1239 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1240 * This array is allocated here, but has to be freed in caller. 1241 * 1242 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1243 **/ 1244 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1245 s16 **vlan_list) 1246 { 1247 struct i40e_mac_filter *f; 1248 int i = 0; 1249 int bkt; 1250 1251 spin_lock_bh(&vsi->mac_filter_hash_lock); 1252 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1253 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1254 if (!(*vlan_list)) 1255 goto err; 1256 1257 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1258 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1259 continue; 1260 (*vlan_list)[i++] = f->vlan; 1261 } 1262 err: 1263 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1264 } 1265 1266 /** 1267 * i40e_set_vsi_promisc 1268 * @vf: pointer to the VF struct 1269 * @seid: VSI number 1270 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1271 * for a given VLAN 1272 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1273 * for a given VLAN 1274 * @vl: List of VLANs - apply filter for given VLANs 1275 * @num_vlans: Number of elements in @vl 1276 **/ 1277 static int 1278 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1279 bool unicast_enable, s16 *vl, u16 num_vlans) 1280 { 1281 struct i40e_pf *pf = vf->pf; 1282 struct i40e_hw *hw = &pf->hw; 1283 int aq_ret, aq_tmp = 0; 1284 int i; 1285 1286 /* No VLAN to set promisc on, set on VSI */ 1287 if (!num_vlans || !vl) { 1288 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1289 multi_enable, 1290 NULL); 1291 if (aq_ret) { 1292 int aq_err = pf->hw.aq.asq_last_status; 1293 1294 dev_err(&pf->pdev->dev, 1295 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1296 vf->vf_id, 1297 ERR_PTR(aq_ret), 1298 i40e_aq_str(&pf->hw, aq_err)); 1299 1300 return aq_ret; 1301 } 1302 1303 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1304 unicast_enable, 1305 NULL, true); 1306 1307 if (aq_ret) { 1308 int aq_err = pf->hw.aq.asq_last_status; 1309 1310 dev_err(&pf->pdev->dev, 1311 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1312 vf->vf_id, 1313 ERR_PTR(aq_ret), 1314 i40e_aq_str(&pf->hw, aq_err)); 1315 } 1316 1317 return aq_ret; 1318 } 1319 1320 for (i = 0; i < num_vlans; i++) { 1321 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1322 multi_enable, 1323 vl[i], NULL); 1324 if (aq_ret) { 1325 int aq_err = pf->hw.aq.asq_last_status; 1326 1327 dev_err(&pf->pdev->dev, 1328 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1329 vf->vf_id, 1330 ERR_PTR(aq_ret), 1331 i40e_aq_str(&pf->hw, aq_err)); 1332 1333 if (!aq_tmp) 1334 aq_tmp = aq_ret; 1335 } 1336 1337 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1338 unicast_enable, 1339 vl[i], NULL); 1340 if (aq_ret) { 1341 int aq_err = pf->hw.aq.asq_last_status; 1342 1343 dev_err(&pf->pdev->dev, 1344 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1345 vf->vf_id, 1346 ERR_PTR(aq_ret), 1347 i40e_aq_str(&pf->hw, aq_err)); 1348 1349 if (!aq_tmp) 1350 aq_tmp = aq_ret; 1351 } 1352 } 1353 1354 if (aq_tmp) 1355 aq_ret = aq_tmp; 1356 1357 return aq_ret; 1358 } 1359 1360 /** 1361 * i40e_config_vf_promiscuous_mode 1362 * @vf: pointer to the VF info 1363 * @vsi_id: VSI id 1364 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1365 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1366 * 1367 * Called from the VF to configure the promiscuous mode of 1368 * VF vsis and from the VF reset path to reset promiscuous mode. 1369 **/ 1370 static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1371 u16 vsi_id, 1372 bool allmulti, 1373 bool alluni) 1374 { 1375 struct i40e_pf *pf = vf->pf; 1376 struct i40e_vsi *vsi; 1377 int aq_ret = 0; 1378 u16 num_vlans; 1379 s16 *vl; 1380 1381 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1382 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1383 return -EINVAL; 1384 1385 if (vf->port_vlan_id) { 1386 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1387 alluni, &vf->port_vlan_id, 1); 1388 return aq_ret; 1389 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1390 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1391 1392 if (!vl) 1393 return -ENOMEM; 1394 1395 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1396 vl, num_vlans); 1397 kfree(vl); 1398 return aq_ret; 1399 } 1400 1401 /* no VLANs to set on, set on VSI */ 1402 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1403 NULL, 0); 1404 return aq_ret; 1405 } 1406 1407 /** 1408 * i40e_sync_vfr_reset 1409 * @hw: pointer to hw struct 1410 * @vf_id: VF identifier 1411 * 1412 * Before trigger hardware reset, we need to know if no other process has 1413 * reserved the hardware for any reset operations. This check is done by 1414 * examining the status of the RSTAT1 register used to signal the reset. 1415 **/ 1416 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1417 { 1418 u32 reg; 1419 int i; 1420 1421 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1422 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1423 I40E_VFINT_ICR0_ADMINQ_MASK; 1424 if (reg) 1425 return 0; 1426 1427 usleep_range(100, 200); 1428 } 1429 1430 return -EAGAIN; 1431 } 1432 1433 /** 1434 * i40e_trigger_vf_reset 1435 * @vf: pointer to the VF structure 1436 * @flr: VFLR was issued or not 1437 * 1438 * Trigger hardware to start a reset for a particular VF. Expects the caller 1439 * to wait the proper amount of time to allow hardware to reset the VF before 1440 * it cleans up and restores VF functionality. 1441 **/ 1442 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1443 { 1444 struct i40e_pf *pf = vf->pf; 1445 struct i40e_hw *hw = &pf->hw; 1446 u32 reg, reg_idx, bit_idx; 1447 bool vf_active; 1448 u32 radq; 1449 1450 /* warn the VF */ 1451 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1452 1453 /* Disable VF's configuration API during reset. The flag is re-enabled 1454 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1455 * It's normally disabled in i40e_free_vf_res(), but it's safer 1456 * to do it earlier to give some time to finish to any VF config 1457 * functions that may still be running at this point. 1458 */ 1459 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1460 1461 /* In the case of a VFLR, the HW has already reset the VF and we 1462 * just need to clean up, so don't hit the VFRTRIG register. 1463 */ 1464 if (!flr) { 1465 /* Sync VFR reset before trigger next one */ 1466 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1467 I40E_VFINT_ICR0_ADMINQ_MASK; 1468 if (vf_active && !radq) 1469 /* waiting for finish reset by virtual driver */ 1470 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1471 dev_info(&pf->pdev->dev, 1472 "Reset VF %d never finished\n", 1473 vf->vf_id); 1474 1475 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1476 * in progress state in rstat1 register. 1477 */ 1478 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1479 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1480 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1481 i40e_flush(hw); 1482 } 1483 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1484 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1485 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1486 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1487 i40e_flush(hw); 1488 1489 if (i40e_quiesce_vf_pci(vf)) 1490 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1491 vf->vf_id); 1492 } 1493 1494 /** 1495 * i40e_cleanup_reset_vf 1496 * @vf: pointer to the VF structure 1497 * 1498 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1499 * have verified whether the reset is finished properly, and ensure the 1500 * minimum amount of wait time has passed. 1501 **/ 1502 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1503 { 1504 struct i40e_pf *pf = vf->pf; 1505 struct i40e_hw *hw = &pf->hw; 1506 u32 reg; 1507 1508 /* disable promisc modes in case they were enabled */ 1509 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1510 1511 /* free VF resources to begin resetting the VSI state */ 1512 i40e_free_vf_res(vf); 1513 1514 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1515 * By doing this we allow HW to access VF memory at any point. If we 1516 * did it any sooner, HW could access memory while it was being freed 1517 * in i40e_free_vf_res(), causing an IOMMU fault. 1518 * 1519 * On the other hand, this needs to be done ASAP, because the VF driver 1520 * is waiting for this to happen and may report a timeout. It's 1521 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1522 * it. 1523 */ 1524 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1525 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1526 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1527 1528 /* reallocate VF resources to finish resetting the VSI state */ 1529 if (!i40e_alloc_vf_res(vf)) { 1530 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1531 i40e_enable_vf_mappings(vf); 1532 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1533 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1534 /* Do not notify the client during VF init */ 1535 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1536 &vf->vf_states)) 1537 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1538 vf->num_vlan = 0; 1539 } 1540 1541 /* Tell the VF driver the reset is done. This needs to be done only 1542 * after VF has been fully initialized, because the VF driver may 1543 * request resources immediately after setting this flag. 1544 */ 1545 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1546 } 1547 1548 /** 1549 * i40e_reset_vf 1550 * @vf: pointer to the VF structure 1551 * @flr: VFLR was issued or not 1552 * 1553 * Returns true if the VF is in reset, resets successfully, or resets 1554 * are disabled and false otherwise. 1555 **/ 1556 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1557 { 1558 struct i40e_pf *pf = vf->pf; 1559 struct i40e_hw *hw = &pf->hw; 1560 bool rsd = false; 1561 u32 reg; 1562 int i; 1563 1564 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1565 return true; 1566 1567 /* Bail out if VFs are disabled. */ 1568 if (test_bit(__I40E_VF_DISABLE, pf->state)) 1569 return true; 1570 1571 /* If VF is being reset already we don't need to continue. */ 1572 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1573 return true; 1574 1575 i40e_trigger_vf_reset(vf, flr); 1576 1577 /* poll VPGEN_VFRSTAT reg to make sure 1578 * that reset is complete 1579 */ 1580 for (i = 0; i < 10; i++) { 1581 /* VF reset requires driver to first reset the VF and then 1582 * poll the status register to make sure that the reset 1583 * completed successfully. Due to internal HW FIFO flushes, 1584 * we must wait 10ms before the register will be valid. 1585 */ 1586 usleep_range(10000, 20000); 1587 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1588 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1589 rsd = true; 1590 break; 1591 } 1592 } 1593 1594 if (flr) 1595 usleep_range(10000, 20000); 1596 1597 if (!rsd) 1598 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1599 vf->vf_id); 1600 usleep_range(10000, 20000); 1601 1602 /* On initial reset, we don't have any queues to disable */ 1603 if (vf->lan_vsi_idx != 0) 1604 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1605 1606 i40e_cleanup_reset_vf(vf); 1607 1608 i40e_flush(hw); 1609 usleep_range(20000, 40000); 1610 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states); 1611 1612 return true; 1613 } 1614 1615 /** 1616 * i40e_reset_all_vfs 1617 * @pf: pointer to the PF structure 1618 * @flr: VFLR was issued or not 1619 * 1620 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1621 * VF, then do all the waiting in one chunk, and finally finish restoring each 1622 * VF after the wait. This is useful during PF routines which need to reset 1623 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1624 * 1625 * Returns true if any VFs were reset, and false otherwise. 1626 **/ 1627 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1628 { 1629 struct i40e_hw *hw = &pf->hw; 1630 struct i40e_vf *vf; 1631 int i, v; 1632 u32 reg; 1633 1634 /* If we don't have any VFs, then there is nothing to reset */ 1635 if (!pf->num_alloc_vfs) 1636 return false; 1637 1638 /* If VFs have been disabled, there is no need to reset */ 1639 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1640 return false; 1641 1642 /* Begin reset on all VFs at once */ 1643 for (v = 0; v < pf->num_alloc_vfs; v++) { 1644 vf = &pf->vf[v]; 1645 /* If VF is being reset no need to trigger reset again */ 1646 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1647 i40e_trigger_vf_reset(&pf->vf[v], flr); 1648 } 1649 1650 /* HW requires some time to make sure it can flush the FIFO for a VF 1651 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1652 * sequence to make sure that it has completed. We'll keep track of 1653 * the VFs using a simple iterator that increments once that VF has 1654 * finished resetting. 1655 */ 1656 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1657 usleep_range(10000, 20000); 1658 1659 /* Check each VF in sequence, beginning with the VF to fail 1660 * the previous check. 1661 */ 1662 while (v < pf->num_alloc_vfs) { 1663 vf = &pf->vf[v]; 1664 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) { 1665 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1666 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1667 break; 1668 } 1669 1670 /* If the current VF has finished resetting, move on 1671 * to the next VF in sequence. 1672 */ 1673 v++; 1674 } 1675 } 1676 1677 if (flr) 1678 usleep_range(10000, 20000); 1679 1680 /* Display a warning if at least one VF didn't manage to reset in 1681 * time, but continue on with the operation. 1682 */ 1683 if (v < pf->num_alloc_vfs) 1684 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1685 pf->vf[v].vf_id); 1686 usleep_range(10000, 20000); 1687 1688 /* Begin disabling all the rings associated with VFs, but do not wait 1689 * between each VF. 1690 */ 1691 for (v = 0; v < pf->num_alloc_vfs; v++) { 1692 /* On initial reset, we don't have any queues to disable */ 1693 if (pf->vf[v].lan_vsi_idx == 0) 1694 continue; 1695 1696 /* If VF is reset in another thread just continue */ 1697 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1698 continue; 1699 1700 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1701 } 1702 1703 /* Now that we've notified HW to disable all of the VF rings, wait 1704 * until they finish. 1705 */ 1706 for (v = 0; v < pf->num_alloc_vfs; v++) { 1707 /* On initial reset, we don't have any queues to disable */ 1708 if (pf->vf[v].lan_vsi_idx == 0) 1709 continue; 1710 1711 /* If VF is reset in another thread just continue */ 1712 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1713 continue; 1714 1715 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1716 } 1717 1718 /* Hw may need up to 50ms to finish disabling the RX queues. We 1719 * minimize the wait by delaying only once for all VFs. 1720 */ 1721 mdelay(50); 1722 1723 /* Finish the reset on each VF */ 1724 for (v = 0; v < pf->num_alloc_vfs; v++) { 1725 /* If VF is reset in another thread just continue */ 1726 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1727 continue; 1728 1729 i40e_cleanup_reset_vf(&pf->vf[v]); 1730 } 1731 1732 i40e_flush(hw); 1733 usleep_range(20000, 40000); 1734 clear_bit(__I40E_VF_DISABLE, pf->state); 1735 1736 return true; 1737 } 1738 1739 /** 1740 * i40e_free_vfs 1741 * @pf: pointer to the PF structure 1742 * 1743 * free VF resources 1744 **/ 1745 void i40e_free_vfs(struct i40e_pf *pf) 1746 { 1747 struct i40e_hw *hw = &pf->hw; 1748 u32 reg_idx, bit_idx; 1749 int i, tmp, vf_id; 1750 1751 if (!pf->vf) 1752 return; 1753 1754 set_bit(__I40E_VFS_RELEASING, pf->state); 1755 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1756 usleep_range(1000, 2000); 1757 1758 i40e_notify_client_of_vf_enable(pf, 0); 1759 1760 /* Disable IOV before freeing resources. This lets any VF drivers 1761 * running in the host get themselves cleaned up before we yank 1762 * the carpet out from underneath their feet. 1763 */ 1764 if (!pci_vfs_assigned(pf->pdev)) 1765 pci_disable_sriov(pf->pdev); 1766 else 1767 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1768 1769 /* Amortize wait time by stopping all VFs at the same time */ 1770 for (i = 0; i < pf->num_alloc_vfs; i++) { 1771 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1772 continue; 1773 1774 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1775 } 1776 1777 for (i = 0; i < pf->num_alloc_vfs; i++) { 1778 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1779 continue; 1780 1781 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1782 } 1783 1784 /* free up VF resources */ 1785 tmp = pf->num_alloc_vfs; 1786 pf->num_alloc_vfs = 0; 1787 for (i = 0; i < tmp; i++) { 1788 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1789 i40e_free_vf_res(&pf->vf[i]); 1790 /* disable qp mappings */ 1791 i40e_disable_vf_mappings(&pf->vf[i]); 1792 } 1793 1794 kfree(pf->vf); 1795 pf->vf = NULL; 1796 1797 /* This check is for when the driver is unloaded while VFs are 1798 * assigned. Setting the number of VFs to 0 through sysfs is caught 1799 * before this function ever gets called. 1800 */ 1801 if (!pci_vfs_assigned(pf->pdev)) { 1802 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1803 * work correctly when SR-IOV gets re-enabled. 1804 */ 1805 for (vf_id = 0; vf_id < tmp; vf_id++) { 1806 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1807 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1808 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1809 } 1810 } 1811 clear_bit(__I40E_VF_DISABLE, pf->state); 1812 clear_bit(__I40E_VFS_RELEASING, pf->state); 1813 } 1814 1815 #ifdef CONFIG_PCI_IOV 1816 /** 1817 * i40e_alloc_vfs 1818 * @pf: pointer to the PF structure 1819 * @num_alloc_vfs: number of VFs to allocate 1820 * 1821 * allocate VF resources 1822 **/ 1823 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1824 { 1825 struct i40e_vf *vfs; 1826 int i, ret = 0; 1827 1828 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1829 i40e_irq_dynamic_disable_icr0(pf); 1830 1831 /* Check to see if we're just allocating resources for extant VFs */ 1832 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1833 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1834 if (ret) { 1835 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1836 pf->num_alloc_vfs = 0; 1837 goto err_iov; 1838 } 1839 } 1840 /* allocate memory */ 1841 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1842 if (!vfs) { 1843 ret = -ENOMEM; 1844 goto err_alloc; 1845 } 1846 pf->vf = vfs; 1847 1848 /* apply default profile */ 1849 for (i = 0; i < num_alloc_vfs; i++) { 1850 vfs[i].pf = pf; 1851 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1852 vfs[i].vf_id = i; 1853 1854 /* assign default capabilities */ 1855 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1856 vfs[i].spoofchk = true; 1857 1858 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1859 1860 } 1861 pf->num_alloc_vfs = num_alloc_vfs; 1862 1863 /* VF resources get allocated during reset */ 1864 i40e_reset_all_vfs(pf, false); 1865 1866 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1867 1868 err_alloc: 1869 if (ret) 1870 i40e_free_vfs(pf); 1871 err_iov: 1872 /* Re-enable interrupt 0. */ 1873 i40e_irq_dynamic_enable_icr0(pf); 1874 return ret; 1875 } 1876 1877 #endif 1878 /** 1879 * i40e_pci_sriov_enable 1880 * @pdev: pointer to a pci_dev structure 1881 * @num_vfs: number of VFs to allocate 1882 * 1883 * Enable or change the number of VFs 1884 **/ 1885 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1886 { 1887 #ifdef CONFIG_PCI_IOV 1888 struct i40e_pf *pf = pci_get_drvdata(pdev); 1889 int pre_existing_vfs = pci_num_vf(pdev); 1890 int err = 0; 1891 1892 if (test_bit(__I40E_TESTING, pf->state)) { 1893 dev_warn(&pdev->dev, 1894 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1895 err = -EPERM; 1896 goto err_out; 1897 } 1898 1899 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1900 i40e_free_vfs(pf); 1901 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1902 goto out; 1903 1904 if (num_vfs > pf->num_req_vfs) { 1905 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1906 num_vfs, pf->num_req_vfs); 1907 err = -EPERM; 1908 goto err_out; 1909 } 1910 1911 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1912 err = i40e_alloc_vfs(pf, num_vfs); 1913 if (err) { 1914 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1915 goto err_out; 1916 } 1917 1918 out: 1919 return num_vfs; 1920 1921 err_out: 1922 return err; 1923 #endif 1924 return 0; 1925 } 1926 1927 /** 1928 * i40e_pci_sriov_configure 1929 * @pdev: pointer to a pci_dev structure 1930 * @num_vfs: number of VFs to allocate 1931 * 1932 * Enable or change the number of VFs. Called when the user updates the number 1933 * of VFs in sysfs. 1934 **/ 1935 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1936 { 1937 struct i40e_pf *pf = pci_get_drvdata(pdev); 1938 int ret = 0; 1939 1940 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1941 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1942 return -EAGAIN; 1943 } 1944 1945 if (num_vfs) { 1946 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) { 1947 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1948 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1949 } 1950 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1951 goto sriov_configure_out; 1952 } 1953 1954 if (!pci_vfs_assigned(pf->pdev)) { 1955 i40e_free_vfs(pf); 1956 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1957 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1958 } else { 1959 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1960 ret = -EINVAL; 1961 goto sriov_configure_out; 1962 } 1963 sriov_configure_out: 1964 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1965 return ret; 1966 } 1967 1968 /***********************virtual channel routines******************/ 1969 1970 /** 1971 * i40e_vc_send_msg_to_vf 1972 * @vf: pointer to the VF info 1973 * @v_opcode: virtual channel opcode 1974 * @v_retval: virtual channel return value 1975 * @msg: pointer to the msg buffer 1976 * @msglen: msg length 1977 * 1978 * send msg to VF 1979 **/ 1980 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1981 u32 v_retval, u8 *msg, u16 msglen) 1982 { 1983 struct i40e_pf *pf; 1984 struct i40e_hw *hw; 1985 int abs_vf_id; 1986 int aq_ret; 1987 1988 /* validate the request */ 1989 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1990 return -EINVAL; 1991 1992 pf = vf->pf; 1993 hw = &pf->hw; 1994 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1995 1996 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1997 msg, msglen, NULL); 1998 if (aq_ret) { 1999 dev_info(&pf->pdev->dev, 2000 "Unable to send the message to VF %d aq_err %d\n", 2001 vf->vf_id, pf->hw.aq.asq_last_status); 2002 return -EIO; 2003 } 2004 2005 return 0; 2006 } 2007 2008 /** 2009 * i40e_vc_send_resp_to_vf 2010 * @vf: pointer to the VF info 2011 * @opcode: operation code 2012 * @retval: return value 2013 * 2014 * send resp msg to VF 2015 **/ 2016 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 2017 enum virtchnl_ops opcode, 2018 int retval) 2019 { 2020 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 2021 } 2022 2023 /** 2024 * i40e_sync_vf_state 2025 * @vf: pointer to the VF info 2026 * @state: VF state 2027 * 2028 * Called from a VF message to synchronize the service with a potential 2029 * VF reset state 2030 **/ 2031 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2032 { 2033 int i; 2034 2035 /* When handling some messages, it needs VF state to be set. 2036 * It is possible that this flag is cleared during VF reset, 2037 * so there is a need to wait until the end of the reset to 2038 * handle the request message correctly. 2039 */ 2040 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2041 if (test_bit(state, &vf->vf_states)) 2042 return true; 2043 usleep_range(10000, 20000); 2044 } 2045 2046 return test_bit(state, &vf->vf_states); 2047 } 2048 2049 /** 2050 * i40e_vc_get_version_msg 2051 * @vf: pointer to the VF info 2052 * @msg: pointer to the msg buffer 2053 * 2054 * called from the VF to request the API version used by the PF 2055 **/ 2056 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2057 { 2058 struct virtchnl_version_info info = { 2059 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2060 }; 2061 2062 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2063 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2064 if (VF_IS_V10(&vf->vf_ver)) 2065 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2066 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2067 0, (u8 *)&info, 2068 sizeof(struct virtchnl_version_info)); 2069 } 2070 2071 /** 2072 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2073 * @vf: pointer to VF structure 2074 **/ 2075 static void i40e_del_qch(struct i40e_vf *vf) 2076 { 2077 struct i40e_pf *pf = vf->pf; 2078 int i; 2079 2080 /* first element in the array belongs to primary VF VSI and we shouldn't 2081 * delete it. We should however delete the rest of the VSIs created 2082 */ 2083 for (i = 1; i < vf->num_tc; i++) { 2084 if (vf->ch[i].vsi_idx) { 2085 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2086 vf->ch[i].vsi_idx = 0; 2087 vf->ch[i].vsi_id = 0; 2088 } 2089 } 2090 } 2091 2092 /** 2093 * i40e_vc_get_max_frame_size 2094 * @vf: pointer to the VF 2095 * 2096 * Max frame size is determined based on the current port's max frame size and 2097 * whether a port VLAN is configured on this VF. The VF is not aware whether 2098 * it's in a port VLAN so the PF needs to account for this in max frame size 2099 * checks and sending the max frame size to the VF. 2100 **/ 2101 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf) 2102 { 2103 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size; 2104 2105 if (vf->port_vlan_id) 2106 max_frame_size -= VLAN_HLEN; 2107 2108 return max_frame_size; 2109 } 2110 2111 /** 2112 * i40e_vc_get_vf_resources_msg 2113 * @vf: pointer to the VF info 2114 * @msg: pointer to the msg buffer 2115 * 2116 * called from the VF to request its resources 2117 **/ 2118 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2119 { 2120 struct virtchnl_vf_resource *vfres = NULL; 2121 struct i40e_pf *pf = vf->pf; 2122 struct i40e_vsi *vsi; 2123 int num_vsis = 1; 2124 int aq_ret = 0; 2125 size_t len = 0; 2126 int ret; 2127 2128 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2129 aq_ret = -EINVAL; 2130 goto err; 2131 } 2132 2133 len = virtchnl_struct_size(vfres, vsi_res, num_vsis); 2134 vfres = kzalloc(len, GFP_KERNEL); 2135 if (!vfres) { 2136 aq_ret = -ENOMEM; 2137 len = 0; 2138 goto err; 2139 } 2140 if (VF_IS_V11(&vf->vf_ver)) 2141 vf->driver_caps = *(u32 *)msg; 2142 else 2143 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2144 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2145 VIRTCHNL_VF_OFFLOAD_VLAN; 2146 2147 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2148 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2149 vsi = pf->vsi[vf->lan_vsi_idx]; 2150 if (!vsi->info.pvid) 2151 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2152 2153 if (i40e_vf_client_capable(pf, vf->vf_id) && 2154 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) { 2155 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA; 2156 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2157 } else { 2158 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2159 } 2160 2161 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2163 } else { 2164 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) && 2165 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2166 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2167 else 2168 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2169 } 2170 2171 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) { 2172 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2173 vfres->vf_cap_flags |= 2174 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2175 } 2176 2177 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2178 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2179 2180 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) && 2181 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2182 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2183 2184 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2185 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 2186 dev_err(&pf->pdev->dev, 2187 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2188 vf->vf_id); 2189 aq_ret = -EINVAL; 2190 goto err; 2191 } 2192 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2193 } 2194 2195 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) { 2196 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2197 vfres->vf_cap_flags |= 2198 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2199 } 2200 2201 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2202 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2203 2204 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2205 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2206 2207 vfres->num_vsis = num_vsis; 2208 vfres->num_queue_pairs = vf->num_queue_pairs; 2209 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2210 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2211 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2212 vfres->max_mtu = i40e_vc_get_max_frame_size(vf); 2213 2214 if (vf->lan_vsi_idx) { 2215 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2216 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2217 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2218 /* VFs only use TC 0 */ 2219 vfres->vsi_res[0].qset_handle 2220 = le16_to_cpu(vsi->info.qs_handle[0]); 2221 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2222 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2223 eth_zero_addr(vf->default_lan_addr.addr); 2224 } 2225 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2226 vf->default_lan_addr.addr); 2227 } 2228 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2229 2230 err: 2231 /* send the response back to the VF */ 2232 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2233 aq_ret, (u8 *)vfres, len); 2234 2235 kfree(vfres); 2236 return ret; 2237 } 2238 2239 /** 2240 * i40e_vc_config_promiscuous_mode_msg 2241 * @vf: pointer to the VF info 2242 * @msg: pointer to the msg buffer 2243 * 2244 * called from the VF to configure the promiscuous mode of 2245 * VF vsis 2246 **/ 2247 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2248 { 2249 struct virtchnl_promisc_info *info = 2250 (struct virtchnl_promisc_info *)msg; 2251 struct i40e_pf *pf = vf->pf; 2252 bool allmulti = false; 2253 bool alluni = false; 2254 int aq_ret = 0; 2255 2256 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2257 aq_ret = -EINVAL; 2258 goto err_out; 2259 } 2260 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2261 dev_err(&pf->pdev->dev, 2262 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2263 vf->vf_id); 2264 2265 /* Lie to the VF on purpose, because this is an error we can 2266 * ignore. Unprivileged VF is not a virtual channel error. 2267 */ 2268 aq_ret = 0; 2269 goto err_out; 2270 } 2271 2272 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2273 aq_ret = -EINVAL; 2274 goto err_out; 2275 } 2276 2277 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2278 aq_ret = -EINVAL; 2279 goto err_out; 2280 } 2281 2282 /* Multicast promiscuous handling*/ 2283 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2284 allmulti = true; 2285 2286 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2287 alluni = true; 2288 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2289 alluni); 2290 if (aq_ret) 2291 goto err_out; 2292 2293 if (allmulti) { 2294 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2295 &vf->vf_states)) 2296 dev_info(&pf->pdev->dev, 2297 "VF %d successfully set multicast promiscuous mode\n", 2298 vf->vf_id); 2299 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2300 &vf->vf_states)) 2301 dev_info(&pf->pdev->dev, 2302 "VF %d successfully unset multicast promiscuous mode\n", 2303 vf->vf_id); 2304 2305 if (alluni) { 2306 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2307 &vf->vf_states)) 2308 dev_info(&pf->pdev->dev, 2309 "VF %d successfully set unicast promiscuous mode\n", 2310 vf->vf_id); 2311 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2312 &vf->vf_states)) 2313 dev_info(&pf->pdev->dev, 2314 "VF %d successfully unset unicast promiscuous mode\n", 2315 vf->vf_id); 2316 2317 err_out: 2318 /* send the response to the VF */ 2319 return i40e_vc_send_resp_to_vf(vf, 2320 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2321 aq_ret); 2322 } 2323 2324 /** 2325 * i40e_vc_config_queues_msg 2326 * @vf: pointer to the VF info 2327 * @msg: pointer to the msg buffer 2328 * 2329 * called from the VF to configure the rx/tx 2330 * queues 2331 **/ 2332 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2333 { 2334 struct virtchnl_vsi_queue_config_info *qci = 2335 (struct virtchnl_vsi_queue_config_info *)msg; 2336 struct virtchnl_queue_pair_info *qpi; 2337 u16 vsi_id, vsi_queue_id = 0; 2338 struct i40e_pf *pf = vf->pf; 2339 int i, j = 0, idx = 0; 2340 struct i40e_vsi *vsi; 2341 u16 num_qps_all = 0; 2342 int aq_ret = 0; 2343 2344 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2345 aq_ret = -EINVAL; 2346 goto error_param; 2347 } 2348 2349 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2350 aq_ret = -EINVAL; 2351 goto error_param; 2352 } 2353 2354 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2355 aq_ret = -EINVAL; 2356 goto error_param; 2357 } 2358 2359 if (vf->adq_enabled) { 2360 for (i = 0; i < vf->num_tc; i++) 2361 num_qps_all += vf->ch[i].num_qps; 2362 if (num_qps_all != qci->num_queue_pairs) { 2363 aq_ret = -EINVAL; 2364 goto error_param; 2365 } 2366 } 2367 2368 vsi_id = qci->vsi_id; 2369 2370 for (i = 0; i < qci->num_queue_pairs; i++) { 2371 qpi = &qci->qpair[i]; 2372 2373 if (!vf->adq_enabled) { 2374 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2375 qpi->txq.queue_id)) { 2376 aq_ret = -EINVAL; 2377 goto error_param; 2378 } 2379 2380 vsi_queue_id = qpi->txq.queue_id; 2381 2382 if (qpi->txq.vsi_id != qci->vsi_id || 2383 qpi->rxq.vsi_id != qci->vsi_id || 2384 qpi->rxq.queue_id != vsi_queue_id) { 2385 aq_ret = -EINVAL; 2386 goto error_param; 2387 } 2388 } 2389 2390 if (vf->adq_enabled) { 2391 if (idx >= ARRAY_SIZE(vf->ch)) { 2392 aq_ret = -ENODEV; 2393 goto error_param; 2394 } 2395 vsi_id = vf->ch[idx].vsi_id; 2396 } 2397 2398 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2399 &qpi->rxq) || 2400 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2401 &qpi->txq)) { 2402 aq_ret = -EINVAL; 2403 goto error_param; 2404 } 2405 2406 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2407 * VF does not know about these additional VSIs and all 2408 * it cares is about its own queues. PF configures these queues 2409 * to its appropriate VSIs based on TC mapping 2410 */ 2411 if (vf->adq_enabled) { 2412 if (idx >= ARRAY_SIZE(vf->ch)) { 2413 aq_ret = -ENODEV; 2414 goto error_param; 2415 } 2416 if (j == (vf->ch[idx].num_qps - 1)) { 2417 idx++; 2418 j = 0; /* resetting the queue count */ 2419 vsi_queue_id = 0; 2420 } else { 2421 j++; 2422 vsi_queue_id++; 2423 } 2424 } 2425 } 2426 /* set vsi num_queue_pairs in use to num configured by VF */ 2427 if (!vf->adq_enabled) { 2428 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2429 qci->num_queue_pairs; 2430 } else { 2431 for (i = 0; i < vf->num_tc; i++) { 2432 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2433 vsi->num_queue_pairs = vf->ch[i].num_qps; 2434 2435 if (i40e_update_adq_vsi_queues(vsi, i)) { 2436 aq_ret = -EIO; 2437 goto error_param; 2438 } 2439 } 2440 } 2441 2442 error_param: 2443 /* send the response to the VF */ 2444 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2445 aq_ret); 2446 } 2447 2448 /** 2449 * i40e_validate_queue_map - check queue map is valid 2450 * @vf: the VF structure pointer 2451 * @vsi_id: vsi id 2452 * @queuemap: Tx or Rx queue map 2453 * 2454 * check if Tx or Rx queue map is valid 2455 **/ 2456 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2457 unsigned long queuemap) 2458 { 2459 u16 vsi_queue_id, queue_id; 2460 2461 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2462 if (vf->adq_enabled) { 2463 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2464 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2465 } else { 2466 queue_id = vsi_queue_id; 2467 } 2468 2469 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2470 return -EINVAL; 2471 } 2472 2473 return 0; 2474 } 2475 2476 /** 2477 * i40e_vc_config_irq_map_msg 2478 * @vf: pointer to the VF info 2479 * @msg: pointer to the msg buffer 2480 * 2481 * called from the VF to configure the irq to 2482 * queue map 2483 **/ 2484 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2485 { 2486 struct virtchnl_irq_map_info *irqmap_info = 2487 (struct virtchnl_irq_map_info *)msg; 2488 struct virtchnl_vector_map *map; 2489 int aq_ret = 0; 2490 u16 vsi_id; 2491 int i; 2492 2493 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2494 aq_ret = -EINVAL; 2495 goto error_param; 2496 } 2497 2498 if (irqmap_info->num_vectors > 2499 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2500 aq_ret = -EINVAL; 2501 goto error_param; 2502 } 2503 2504 for (i = 0; i < irqmap_info->num_vectors; i++) { 2505 map = &irqmap_info->vecmap[i]; 2506 /* validate msg params */ 2507 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2508 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2509 aq_ret = -EINVAL; 2510 goto error_param; 2511 } 2512 vsi_id = map->vsi_id; 2513 2514 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2515 aq_ret = -EINVAL; 2516 goto error_param; 2517 } 2518 2519 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2520 aq_ret = -EINVAL; 2521 goto error_param; 2522 } 2523 2524 i40e_config_irq_link_list(vf, vsi_id, map); 2525 } 2526 error_param: 2527 /* send the response to the VF */ 2528 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2529 aq_ret); 2530 } 2531 2532 /** 2533 * i40e_ctrl_vf_tx_rings 2534 * @vsi: the SRIOV VSI being configured 2535 * @q_map: bit map of the queues to be enabled 2536 * @enable: start or stop the queue 2537 **/ 2538 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2539 bool enable) 2540 { 2541 struct i40e_pf *pf = vsi->back; 2542 int ret = 0; 2543 u16 q_id; 2544 2545 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2546 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2547 vsi->base_queue + q_id, 2548 false /*is xdp*/, enable); 2549 if (ret) 2550 break; 2551 } 2552 return ret; 2553 } 2554 2555 /** 2556 * i40e_ctrl_vf_rx_rings 2557 * @vsi: the SRIOV VSI being configured 2558 * @q_map: bit map of the queues to be enabled 2559 * @enable: start or stop the queue 2560 **/ 2561 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2562 bool enable) 2563 { 2564 struct i40e_pf *pf = vsi->back; 2565 int ret = 0; 2566 u16 q_id; 2567 2568 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2569 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2570 enable); 2571 if (ret) 2572 break; 2573 } 2574 return ret; 2575 } 2576 2577 /** 2578 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2579 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2580 * 2581 * Returns true if validation was successful, else false. 2582 */ 2583 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2584 { 2585 if ((!vqs->rx_queues && !vqs->tx_queues) || 2586 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2587 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2588 return false; 2589 2590 return true; 2591 } 2592 2593 /** 2594 * i40e_vc_enable_queues_msg 2595 * @vf: pointer to the VF info 2596 * @msg: pointer to the msg buffer 2597 * 2598 * called from the VF to enable all or specific queue(s) 2599 **/ 2600 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2601 { 2602 struct virtchnl_queue_select *vqs = 2603 (struct virtchnl_queue_select *)msg; 2604 struct i40e_pf *pf = vf->pf; 2605 int aq_ret = 0; 2606 int i; 2607 2608 if (vf->is_disabled_from_host) { 2609 aq_ret = -EPERM; 2610 dev_info(&pf->pdev->dev, 2611 "Admin has disabled VF %d, will not enable queues\n", 2612 vf->vf_id); 2613 goto error_param; 2614 } 2615 2616 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2617 aq_ret = -EINVAL; 2618 goto error_param; 2619 } 2620 2621 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2622 aq_ret = -EINVAL; 2623 goto error_param; 2624 } 2625 2626 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2627 aq_ret = -EINVAL; 2628 goto error_param; 2629 } 2630 2631 /* Use the queue bit map sent by the VF */ 2632 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2633 true)) { 2634 aq_ret = -EIO; 2635 goto error_param; 2636 } 2637 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2638 true)) { 2639 aq_ret = -EIO; 2640 goto error_param; 2641 } 2642 2643 /* need to start the rings for additional ADq VSI's as well */ 2644 if (vf->adq_enabled) { 2645 /* zero belongs to LAN VSI */ 2646 for (i = 1; i < vf->num_tc; i++) { 2647 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2648 aq_ret = -EIO; 2649 } 2650 } 2651 2652 error_param: 2653 /* send the response to the VF */ 2654 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2655 aq_ret); 2656 } 2657 2658 /** 2659 * i40e_vc_disable_queues_msg 2660 * @vf: pointer to the VF info 2661 * @msg: pointer to the msg buffer 2662 * 2663 * called from the VF to disable all or specific 2664 * queue(s) 2665 **/ 2666 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2667 { 2668 struct virtchnl_queue_select *vqs = 2669 (struct virtchnl_queue_select *)msg; 2670 struct i40e_pf *pf = vf->pf; 2671 int aq_ret = 0; 2672 2673 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2674 aq_ret = -EINVAL; 2675 goto error_param; 2676 } 2677 2678 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2679 aq_ret = -EINVAL; 2680 goto error_param; 2681 } 2682 2683 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2684 aq_ret = -EINVAL; 2685 goto error_param; 2686 } 2687 2688 /* Use the queue bit map sent by the VF */ 2689 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2690 false)) { 2691 aq_ret = -EIO; 2692 goto error_param; 2693 } 2694 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2695 false)) { 2696 aq_ret = -EIO; 2697 goto error_param; 2698 } 2699 error_param: 2700 /* send the response to the VF */ 2701 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2702 aq_ret); 2703 } 2704 2705 /** 2706 * i40e_check_enough_queue - find big enough queue number 2707 * @vf: pointer to the VF info 2708 * @needed: the number of items needed 2709 * 2710 * Returns the base item index of the queue, or negative for error 2711 **/ 2712 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2713 { 2714 unsigned int i, cur_queues, more, pool_size; 2715 struct i40e_lump_tracking *pile; 2716 struct i40e_pf *pf = vf->pf; 2717 struct i40e_vsi *vsi; 2718 2719 vsi = pf->vsi[vf->lan_vsi_idx]; 2720 cur_queues = vsi->alloc_queue_pairs; 2721 2722 /* if current allocated queues are enough for need */ 2723 if (cur_queues >= needed) 2724 return vsi->base_queue; 2725 2726 pile = pf->qp_pile; 2727 if (cur_queues > 0) { 2728 /* if the allocated queues are not zero 2729 * just check if there are enough queues for more 2730 * behind the allocated queues. 2731 */ 2732 more = needed - cur_queues; 2733 for (i = vsi->base_queue + cur_queues; 2734 i < pile->num_entries; i++) { 2735 if (pile->list[i] & I40E_PILE_VALID_BIT) 2736 break; 2737 2738 if (more-- == 1) 2739 /* there is enough */ 2740 return vsi->base_queue; 2741 } 2742 } 2743 2744 pool_size = 0; 2745 for (i = 0; i < pile->num_entries; i++) { 2746 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2747 pool_size = 0; 2748 continue; 2749 } 2750 if (needed <= ++pool_size) 2751 /* there is enough */ 2752 return i; 2753 } 2754 2755 return -ENOMEM; 2756 } 2757 2758 /** 2759 * i40e_vc_request_queues_msg 2760 * @vf: pointer to the VF info 2761 * @msg: pointer to the msg buffer 2762 * 2763 * VFs get a default number of queues but can use this message to request a 2764 * different number. If the request is successful, PF will reset the VF and 2765 * return 0. If unsuccessful, PF will send message informing VF of number of 2766 * available queues and return result of sending VF a message. 2767 **/ 2768 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2769 { 2770 struct virtchnl_vf_res_request *vfres = 2771 (struct virtchnl_vf_res_request *)msg; 2772 u16 req_pairs = vfres->num_queue_pairs; 2773 u8 cur_pairs = vf->num_queue_pairs; 2774 struct i40e_pf *pf = vf->pf; 2775 2776 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2777 return -EINVAL; 2778 2779 if (req_pairs > I40E_MAX_VF_QUEUES) { 2780 dev_err(&pf->pdev->dev, 2781 "VF %d tried to request more than %d queues.\n", 2782 vf->vf_id, 2783 I40E_MAX_VF_QUEUES); 2784 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2785 } else if (req_pairs - cur_pairs > pf->queues_left) { 2786 dev_warn(&pf->pdev->dev, 2787 "VF %d requested %d more queues, but only %d left.\n", 2788 vf->vf_id, 2789 req_pairs - cur_pairs, 2790 pf->queues_left); 2791 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2792 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2793 dev_warn(&pf->pdev->dev, 2794 "VF %d requested %d more queues, but there is not enough for it.\n", 2795 vf->vf_id, 2796 req_pairs - cur_pairs); 2797 vfres->num_queue_pairs = cur_pairs; 2798 } else { 2799 /* successful request */ 2800 vf->num_req_queues = req_pairs; 2801 i40e_vc_reset_vf(vf, true); 2802 return 0; 2803 } 2804 2805 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2806 (u8 *)vfres, sizeof(*vfres)); 2807 } 2808 2809 /** 2810 * i40e_vc_get_stats_msg 2811 * @vf: pointer to the VF info 2812 * @msg: pointer to the msg buffer 2813 * 2814 * called from the VF to get vsi stats 2815 **/ 2816 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2817 { 2818 struct virtchnl_queue_select *vqs = 2819 (struct virtchnl_queue_select *)msg; 2820 struct i40e_pf *pf = vf->pf; 2821 struct i40e_eth_stats stats; 2822 int aq_ret = 0; 2823 struct i40e_vsi *vsi; 2824 2825 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2826 2827 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2828 aq_ret = -EINVAL; 2829 goto error_param; 2830 } 2831 2832 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2833 aq_ret = -EINVAL; 2834 goto error_param; 2835 } 2836 2837 vsi = pf->vsi[vf->lan_vsi_idx]; 2838 if (!vsi) { 2839 aq_ret = -EINVAL; 2840 goto error_param; 2841 } 2842 i40e_update_eth_stats(vsi); 2843 stats = vsi->eth_stats; 2844 2845 error_param: 2846 /* send the response back to the VF */ 2847 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2848 (u8 *)&stats, sizeof(stats)); 2849 } 2850 2851 #define I40E_MAX_MACVLAN_PER_HW 3072 2852 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2853 (num_ports)) 2854 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2855 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2856 */ 2857 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2858 #define I40E_VC_MAX_VLAN_PER_VF 16 2859 2860 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2861 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2862 typeof(num_ports) num_ports_ = (num_ports); \ 2863 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2864 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2865 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2866 /** 2867 * i40e_check_vf_permission 2868 * @vf: pointer to the VF info 2869 * @al: MAC address list from virtchnl 2870 * 2871 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2872 * if any address in the list is not valid. Checks the following conditions: 2873 * 2874 * 1) broadcast and zero addresses are never valid 2875 * 2) unicast addresses are not allowed if the VMM has administratively set 2876 * the VF MAC address, unless the VF is marked as privileged. 2877 * 3) There is enough space to add all the addresses. 2878 * 2879 * Note that to guarantee consistency, it is expected this function be called 2880 * while holding the mac_filter_hash_lock, as otherwise the current number of 2881 * addresses might not be accurate. 2882 **/ 2883 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2884 struct virtchnl_ether_addr_list *al) 2885 { 2886 struct i40e_pf *pf = vf->pf; 2887 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2888 struct i40e_hw *hw = &pf->hw; 2889 int mac2add_cnt = 0; 2890 int i; 2891 2892 for (i = 0; i < al->num_elements; i++) { 2893 struct i40e_mac_filter *f; 2894 u8 *addr = al->list[i].addr; 2895 2896 if (is_broadcast_ether_addr(addr) || 2897 is_zero_ether_addr(addr)) { 2898 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2899 addr); 2900 return -EINVAL; 2901 } 2902 2903 /* If the host VMM administrator has set the VF MAC address 2904 * administratively via the ndo_set_vf_mac command then deny 2905 * permission to the VF to add or delete unicast MAC addresses. 2906 * Unless the VF is privileged and then it can do whatever. 2907 * The VF may request to set the MAC address filter already 2908 * assigned to it so do not return an error in that case. 2909 */ 2910 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2911 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2912 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2913 dev_err(&pf->pdev->dev, 2914 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2915 return -EPERM; 2916 } 2917 2918 /*count filters that really will be added*/ 2919 f = i40e_find_mac(vsi, addr); 2920 if (!f) 2921 ++mac2add_cnt; 2922 } 2923 2924 /* If this VF is not privileged, then we can't add more than a limited 2925 * number of addresses. Check to make sure that the additions do not 2926 * push us over the limit. 2927 */ 2928 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2929 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2930 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2931 dev_err(&pf->pdev->dev, 2932 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2933 return -EPERM; 2934 } 2935 /* If this VF is trusted, it can use more resources than untrusted. 2936 * However to ensure that every trusted VF has appropriate number of 2937 * resources, divide whole pool of resources per port and then across 2938 * all VFs. 2939 */ 2940 } else { 2941 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2942 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2943 hw->num_ports)) { 2944 dev_err(&pf->pdev->dev, 2945 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2946 return -EPERM; 2947 } 2948 } 2949 return 0; 2950 } 2951 2952 /** 2953 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr 2954 * @vc_ether_addr: used to extract the type 2955 **/ 2956 static u8 2957 i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr) 2958 { 2959 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK; 2960 } 2961 2962 /** 2963 * i40e_is_vc_addr_legacy 2964 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2965 * 2966 * check if the MAC address is from an older VF 2967 **/ 2968 static bool 2969 i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr) 2970 { 2971 return i40e_vc_ether_addr_type(vc_ether_addr) == 2972 VIRTCHNL_ETHER_ADDR_LEGACY; 2973 } 2974 2975 /** 2976 * i40e_is_vc_addr_primary 2977 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2978 * 2979 * check if the MAC address is the VF's primary MAC 2980 * This function should only be called when the MAC address in 2981 * virtchnl_ether_addr is a valid unicast MAC 2982 **/ 2983 static bool 2984 i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr) 2985 { 2986 return i40e_vc_ether_addr_type(vc_ether_addr) == 2987 VIRTCHNL_ETHER_ADDR_PRIMARY; 2988 } 2989 2990 /** 2991 * i40e_update_vf_mac_addr 2992 * @vf: VF to update 2993 * @vc_ether_addr: structure from VIRTCHNL with MAC to add 2994 * 2995 * update the VF's cached hardware MAC if allowed 2996 **/ 2997 static void 2998 i40e_update_vf_mac_addr(struct i40e_vf *vf, 2999 struct virtchnl_ether_addr *vc_ether_addr) 3000 { 3001 u8 *mac_addr = vc_ether_addr->addr; 3002 3003 if (!is_valid_ether_addr(mac_addr)) 3004 return; 3005 3006 /* If request to add MAC filter is a primary request update its default 3007 * MAC address with the requested one. If it is a legacy request then 3008 * check if current default is empty if so update the default MAC 3009 */ 3010 if (i40e_is_vc_addr_primary(vc_ether_addr)) { 3011 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3012 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) { 3013 if (is_zero_ether_addr(vf->default_lan_addr.addr)) 3014 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3015 } 3016 } 3017 3018 /** 3019 * i40e_vc_add_mac_addr_msg 3020 * @vf: pointer to the VF info 3021 * @msg: pointer to the msg buffer 3022 * 3023 * add guest mac address filter 3024 **/ 3025 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3026 { 3027 struct virtchnl_ether_addr_list *al = 3028 (struct virtchnl_ether_addr_list *)msg; 3029 struct i40e_pf *pf = vf->pf; 3030 struct i40e_vsi *vsi = NULL; 3031 int ret = 0; 3032 int i; 3033 3034 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3035 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3036 ret = -EINVAL; 3037 goto error_param; 3038 } 3039 3040 vsi = pf->vsi[vf->lan_vsi_idx]; 3041 3042 /* Lock once, because all function inside for loop accesses VSI's 3043 * MAC filter list which needs to be protected using same lock. 3044 */ 3045 spin_lock_bh(&vsi->mac_filter_hash_lock); 3046 3047 ret = i40e_check_vf_permission(vf, al); 3048 if (ret) { 3049 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3050 goto error_param; 3051 } 3052 3053 /* add new addresses to the list */ 3054 for (i = 0; i < al->num_elements; i++) { 3055 struct i40e_mac_filter *f; 3056 3057 f = i40e_find_mac(vsi, al->list[i].addr); 3058 if (!f) { 3059 f = i40e_add_mac_filter(vsi, al->list[i].addr); 3060 3061 if (!f) { 3062 dev_err(&pf->pdev->dev, 3063 "Unable to add MAC filter %pM for VF %d\n", 3064 al->list[i].addr, vf->vf_id); 3065 ret = -EINVAL; 3066 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3067 goto error_param; 3068 } 3069 } 3070 i40e_update_vf_mac_addr(vf, &al->list[i]); 3071 } 3072 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3073 3074 /* program the updated filter list */ 3075 ret = i40e_sync_vsi_filters(vsi); 3076 if (ret) 3077 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3078 vf->vf_id, ret); 3079 3080 error_param: 3081 /* send the response to the VF */ 3082 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 3083 ret, NULL, 0); 3084 } 3085 3086 /** 3087 * i40e_vc_del_mac_addr_msg 3088 * @vf: pointer to the VF info 3089 * @msg: pointer to the msg buffer 3090 * 3091 * remove guest mac address filter 3092 **/ 3093 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3094 { 3095 struct virtchnl_ether_addr_list *al = 3096 (struct virtchnl_ether_addr_list *)msg; 3097 bool was_unimac_deleted = false; 3098 struct i40e_pf *pf = vf->pf; 3099 struct i40e_vsi *vsi = NULL; 3100 int ret = 0; 3101 int i; 3102 3103 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3104 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3105 ret = -EINVAL; 3106 goto error_param; 3107 } 3108 3109 for (i = 0; i < al->num_elements; i++) { 3110 if (is_broadcast_ether_addr(al->list[i].addr) || 3111 is_zero_ether_addr(al->list[i].addr)) { 3112 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3113 al->list[i].addr, vf->vf_id); 3114 ret = -EINVAL; 3115 goto error_param; 3116 } 3117 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 3118 was_unimac_deleted = true; 3119 } 3120 vsi = pf->vsi[vf->lan_vsi_idx]; 3121 3122 spin_lock_bh(&vsi->mac_filter_hash_lock); 3123 /* delete addresses from the list */ 3124 for (i = 0; i < al->num_elements; i++) 3125 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3126 ret = -EINVAL; 3127 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3128 goto error_param; 3129 } 3130 3131 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3132 3133 if (was_unimac_deleted) 3134 eth_zero_addr(vf->default_lan_addr.addr); 3135 3136 /* program the updated filter list */ 3137 ret = i40e_sync_vsi_filters(vsi); 3138 if (ret) 3139 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3140 vf->vf_id, ret); 3141 3142 if (vf->trusted && was_unimac_deleted) { 3143 struct i40e_mac_filter *f; 3144 struct hlist_node *h; 3145 u8 *macaddr = NULL; 3146 int bkt; 3147 3148 /* set last unicast mac address as default */ 3149 spin_lock_bh(&vsi->mac_filter_hash_lock); 3150 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3151 if (is_valid_ether_addr(f->macaddr)) 3152 macaddr = f->macaddr; 3153 } 3154 if (macaddr) 3155 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3156 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3157 } 3158 error_param: 3159 /* send the response to the VF */ 3160 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3161 } 3162 3163 /** 3164 * i40e_vc_add_vlan_msg 3165 * @vf: pointer to the VF info 3166 * @msg: pointer to the msg buffer 3167 * 3168 * program guest vlan id 3169 **/ 3170 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3171 { 3172 struct virtchnl_vlan_filter_list *vfl = 3173 (struct virtchnl_vlan_filter_list *)msg; 3174 struct i40e_pf *pf = vf->pf; 3175 struct i40e_vsi *vsi = NULL; 3176 int aq_ret = 0; 3177 int i; 3178 3179 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3180 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3181 dev_err(&pf->pdev->dev, 3182 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3183 goto error_param; 3184 } 3185 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3186 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3187 aq_ret = -EINVAL; 3188 goto error_param; 3189 } 3190 3191 for (i = 0; i < vfl->num_elements; i++) { 3192 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3193 aq_ret = -EINVAL; 3194 dev_err(&pf->pdev->dev, 3195 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3196 goto error_param; 3197 } 3198 } 3199 vsi = pf->vsi[vf->lan_vsi_idx]; 3200 if (vsi->info.pvid) { 3201 aq_ret = -EINVAL; 3202 goto error_param; 3203 } 3204 3205 i40e_vlan_stripping_enable(vsi); 3206 for (i = 0; i < vfl->num_elements; i++) { 3207 /* add new VLAN filter */ 3208 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3209 if (!ret) 3210 vf->num_vlan++; 3211 3212 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3213 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3214 true, 3215 vfl->vlan_id[i], 3216 NULL); 3217 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3218 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3219 true, 3220 vfl->vlan_id[i], 3221 NULL); 3222 3223 if (ret) 3224 dev_err(&pf->pdev->dev, 3225 "Unable to add VLAN filter %d for VF %d, error %d\n", 3226 vfl->vlan_id[i], vf->vf_id, ret); 3227 } 3228 3229 error_param: 3230 /* send the response to the VF */ 3231 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3232 } 3233 3234 /** 3235 * i40e_vc_remove_vlan_msg 3236 * @vf: pointer to the VF info 3237 * @msg: pointer to the msg buffer 3238 * 3239 * remove programmed guest vlan id 3240 **/ 3241 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3242 { 3243 struct virtchnl_vlan_filter_list *vfl = 3244 (struct virtchnl_vlan_filter_list *)msg; 3245 struct i40e_pf *pf = vf->pf; 3246 struct i40e_vsi *vsi = NULL; 3247 int aq_ret = 0; 3248 int i; 3249 3250 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3251 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3252 aq_ret = -EINVAL; 3253 goto error_param; 3254 } 3255 3256 for (i = 0; i < vfl->num_elements; i++) { 3257 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3258 aq_ret = -EINVAL; 3259 goto error_param; 3260 } 3261 } 3262 3263 vsi = pf->vsi[vf->lan_vsi_idx]; 3264 if (vsi->info.pvid) { 3265 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3266 aq_ret = -EINVAL; 3267 goto error_param; 3268 } 3269 3270 for (i = 0; i < vfl->num_elements; i++) { 3271 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3272 vf->num_vlan--; 3273 3274 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3275 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3276 false, 3277 vfl->vlan_id[i], 3278 NULL); 3279 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3280 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3281 false, 3282 vfl->vlan_id[i], 3283 NULL); 3284 } 3285 3286 error_param: 3287 /* send the response to the VF */ 3288 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3289 } 3290 3291 /** 3292 * i40e_vc_rdma_msg 3293 * @vf: pointer to the VF info 3294 * @msg: pointer to the msg buffer 3295 * @msglen: msg length 3296 * 3297 * called from the VF for the iwarp msgs 3298 **/ 3299 static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3300 { 3301 struct i40e_pf *pf = vf->pf; 3302 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3303 int aq_ret = 0; 3304 3305 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3306 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3307 aq_ret = -EINVAL; 3308 goto error_param; 3309 } 3310 3311 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3312 msg, msglen); 3313 3314 error_param: 3315 /* send the response to the VF */ 3316 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA, 3317 aq_ret); 3318 } 3319 3320 /** 3321 * i40e_vc_rdma_qvmap_msg 3322 * @vf: pointer to the VF info 3323 * @msg: pointer to the msg buffer 3324 * @config: config qvmap or release it 3325 * 3326 * called from the VF for the iwarp msgs 3327 **/ 3328 static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3329 { 3330 struct virtchnl_rdma_qvlist_info *qvlist_info = 3331 (struct virtchnl_rdma_qvlist_info *)msg; 3332 int aq_ret = 0; 3333 3334 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3335 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3336 aq_ret = -EINVAL; 3337 goto error_param; 3338 } 3339 3340 if (config) { 3341 if (i40e_config_rdma_qvlist(vf, qvlist_info)) 3342 aq_ret = -EINVAL; 3343 } else { 3344 i40e_release_rdma_qvlist(vf); 3345 } 3346 3347 error_param: 3348 /* send the response to the VF */ 3349 return i40e_vc_send_resp_to_vf(vf, 3350 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP : 3351 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP, 3352 aq_ret); 3353 } 3354 3355 /** 3356 * i40e_vc_config_rss_key 3357 * @vf: pointer to the VF info 3358 * @msg: pointer to the msg buffer 3359 * 3360 * Configure the VF's RSS key 3361 **/ 3362 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3363 { 3364 struct virtchnl_rss_key *vrk = 3365 (struct virtchnl_rss_key *)msg; 3366 struct i40e_pf *pf = vf->pf; 3367 struct i40e_vsi *vsi = NULL; 3368 int aq_ret = 0; 3369 3370 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3371 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3372 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3373 aq_ret = -EINVAL; 3374 goto err; 3375 } 3376 3377 vsi = pf->vsi[vf->lan_vsi_idx]; 3378 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3379 err: 3380 /* send the response to the VF */ 3381 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3382 aq_ret); 3383 } 3384 3385 /** 3386 * i40e_vc_config_rss_lut 3387 * @vf: pointer to the VF info 3388 * @msg: pointer to the msg buffer 3389 * 3390 * Configure the VF's RSS LUT 3391 **/ 3392 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3393 { 3394 struct virtchnl_rss_lut *vrl = 3395 (struct virtchnl_rss_lut *)msg; 3396 struct i40e_pf *pf = vf->pf; 3397 struct i40e_vsi *vsi = NULL; 3398 int aq_ret = 0; 3399 u16 i; 3400 3401 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3402 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3403 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3404 aq_ret = -EINVAL; 3405 goto err; 3406 } 3407 3408 for (i = 0; i < vrl->lut_entries; i++) 3409 if (vrl->lut[i] >= vf->num_queue_pairs) { 3410 aq_ret = -EINVAL; 3411 goto err; 3412 } 3413 3414 vsi = pf->vsi[vf->lan_vsi_idx]; 3415 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3416 /* send the response to the VF */ 3417 err: 3418 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3419 aq_ret); 3420 } 3421 3422 /** 3423 * i40e_vc_get_rss_hena 3424 * @vf: pointer to the VF info 3425 * @msg: pointer to the msg buffer 3426 * 3427 * Return the RSS HENA bits allowed by the hardware 3428 **/ 3429 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3430 { 3431 struct virtchnl_rss_hena *vrh = NULL; 3432 struct i40e_pf *pf = vf->pf; 3433 int aq_ret = 0; 3434 int len = 0; 3435 3436 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3437 aq_ret = -EINVAL; 3438 goto err; 3439 } 3440 len = sizeof(struct virtchnl_rss_hena); 3441 3442 vrh = kzalloc(len, GFP_KERNEL); 3443 if (!vrh) { 3444 aq_ret = -ENOMEM; 3445 len = 0; 3446 goto err; 3447 } 3448 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3449 err: 3450 /* send the response back to the VF */ 3451 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3452 aq_ret, (u8 *)vrh, len); 3453 kfree(vrh); 3454 return aq_ret; 3455 } 3456 3457 /** 3458 * i40e_vc_set_rss_hena 3459 * @vf: pointer to the VF info 3460 * @msg: pointer to the msg buffer 3461 * 3462 * Set the RSS HENA bits for the VF 3463 **/ 3464 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3465 { 3466 struct virtchnl_rss_hena *vrh = 3467 (struct virtchnl_rss_hena *)msg; 3468 struct i40e_pf *pf = vf->pf; 3469 struct i40e_hw *hw = &pf->hw; 3470 int aq_ret = 0; 3471 3472 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3473 aq_ret = -EINVAL; 3474 goto err; 3475 } 3476 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3477 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3478 (u32)(vrh->hena >> 32)); 3479 3480 /* send the response to the VF */ 3481 err: 3482 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3483 } 3484 3485 /** 3486 * i40e_vc_enable_vlan_stripping 3487 * @vf: pointer to the VF info 3488 * @msg: pointer to the msg buffer 3489 * 3490 * Enable vlan header stripping for the VF 3491 **/ 3492 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3493 { 3494 struct i40e_vsi *vsi; 3495 int aq_ret = 0; 3496 3497 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3498 aq_ret = -EINVAL; 3499 goto err; 3500 } 3501 3502 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3503 i40e_vlan_stripping_enable(vsi); 3504 3505 /* send the response to the VF */ 3506 err: 3507 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3508 aq_ret); 3509 } 3510 3511 /** 3512 * i40e_vc_disable_vlan_stripping 3513 * @vf: pointer to the VF info 3514 * @msg: pointer to the msg buffer 3515 * 3516 * Disable vlan header stripping for the VF 3517 **/ 3518 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3519 { 3520 struct i40e_vsi *vsi; 3521 int aq_ret = 0; 3522 3523 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3524 aq_ret = -EINVAL; 3525 goto err; 3526 } 3527 3528 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3529 i40e_vlan_stripping_disable(vsi); 3530 3531 /* send the response to the VF */ 3532 err: 3533 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3534 aq_ret); 3535 } 3536 3537 /** 3538 * i40e_validate_cloud_filter 3539 * @vf: pointer to VF structure 3540 * @tc_filter: pointer to filter requested 3541 * 3542 * This function validates cloud filter programmed as TC filter for ADq 3543 **/ 3544 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3545 struct virtchnl_filter *tc_filter) 3546 { 3547 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3548 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3549 struct i40e_pf *pf = vf->pf; 3550 struct i40e_vsi *vsi = NULL; 3551 struct i40e_mac_filter *f; 3552 struct hlist_node *h; 3553 bool found = false; 3554 int bkt; 3555 3556 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) { 3557 dev_info(&pf->pdev->dev, 3558 "VF %d: ADQ doesn't support this action (%d)\n", 3559 vf->vf_id, tc_filter->action); 3560 goto err; 3561 } 3562 3563 /* action_meta is TC number here to which the filter is applied */ 3564 if (!tc_filter->action_meta || 3565 tc_filter->action_meta > vf->num_tc) { 3566 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3567 vf->vf_id, tc_filter->action_meta); 3568 goto err; 3569 } 3570 3571 /* Check filter if it's programmed for advanced mode or basic mode. 3572 * There are two ADq modes (for VF only), 3573 * 1. Basic mode: intended to allow as many filter options as possible 3574 * to be added to a VF in Non-trusted mode. Main goal is 3575 * to add filters to its own MAC and VLAN id. 3576 * 2. Advanced mode: is for allowing filters to be applied other than 3577 * its own MAC or VLAN. This mode requires the VF to be 3578 * Trusted. 3579 */ 3580 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3581 vsi = pf->vsi[vf->lan_vsi_idx]; 3582 f = i40e_find_mac(vsi, data.dst_mac); 3583 3584 if (!f) { 3585 dev_info(&pf->pdev->dev, 3586 "Destination MAC %pM doesn't belong to VF %d\n", 3587 data.dst_mac, vf->vf_id); 3588 goto err; 3589 } 3590 3591 if (mask.vlan_id) { 3592 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3593 hlist) { 3594 if (f->vlan == ntohs(data.vlan_id)) { 3595 found = true; 3596 break; 3597 } 3598 } 3599 if (!found) { 3600 dev_info(&pf->pdev->dev, 3601 "VF %d doesn't have any VLAN id %u\n", 3602 vf->vf_id, ntohs(data.vlan_id)); 3603 goto err; 3604 } 3605 } 3606 } else { 3607 /* Check if VF is trusted */ 3608 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3609 dev_err(&pf->pdev->dev, 3610 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3611 vf->vf_id); 3612 return -EIO; 3613 } 3614 } 3615 3616 if (mask.dst_mac[0] & data.dst_mac[0]) { 3617 if (is_broadcast_ether_addr(data.dst_mac) || 3618 is_zero_ether_addr(data.dst_mac)) { 3619 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3620 vf->vf_id, data.dst_mac); 3621 goto err; 3622 } 3623 } 3624 3625 if (mask.src_mac[0] & data.src_mac[0]) { 3626 if (is_broadcast_ether_addr(data.src_mac) || 3627 is_zero_ether_addr(data.src_mac)) { 3628 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3629 vf->vf_id, data.src_mac); 3630 goto err; 3631 } 3632 } 3633 3634 if (mask.dst_port & data.dst_port) { 3635 if (!data.dst_port) { 3636 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3637 vf->vf_id); 3638 goto err; 3639 } 3640 } 3641 3642 if (mask.src_port & data.src_port) { 3643 if (!data.src_port) { 3644 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3645 vf->vf_id); 3646 goto err; 3647 } 3648 } 3649 3650 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3651 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3652 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3653 vf->vf_id); 3654 goto err; 3655 } 3656 3657 if (mask.vlan_id & data.vlan_id) { 3658 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3659 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3660 vf->vf_id); 3661 goto err; 3662 } 3663 } 3664 3665 return 0; 3666 err: 3667 return -EIO; 3668 } 3669 3670 /** 3671 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3672 * @vf: pointer to the VF info 3673 * @seid: seid of the vsi it is searching for 3674 **/ 3675 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3676 { 3677 struct i40e_pf *pf = vf->pf; 3678 struct i40e_vsi *vsi = NULL; 3679 int i; 3680 3681 for (i = 0; i < vf->num_tc ; i++) { 3682 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3683 if (vsi && vsi->seid == seid) 3684 return vsi; 3685 } 3686 return NULL; 3687 } 3688 3689 /** 3690 * i40e_del_all_cloud_filters 3691 * @vf: pointer to the VF info 3692 * 3693 * This function deletes all cloud filters 3694 **/ 3695 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3696 { 3697 struct i40e_cloud_filter *cfilter = NULL; 3698 struct i40e_pf *pf = vf->pf; 3699 struct i40e_vsi *vsi = NULL; 3700 struct hlist_node *node; 3701 int ret; 3702 3703 hlist_for_each_entry_safe(cfilter, node, 3704 &vf->cloud_filter_list, cloud_node) { 3705 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3706 3707 if (!vsi) { 3708 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3709 vf->vf_id, cfilter->seid); 3710 continue; 3711 } 3712 3713 if (cfilter->dst_port) 3714 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3715 false); 3716 else 3717 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3718 if (ret) 3719 dev_err(&pf->pdev->dev, 3720 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3721 vf->vf_id, ERR_PTR(ret), 3722 i40e_aq_str(&pf->hw, 3723 pf->hw.aq.asq_last_status)); 3724 3725 hlist_del(&cfilter->cloud_node); 3726 kfree(cfilter); 3727 vf->num_cloud_filters--; 3728 } 3729 } 3730 3731 /** 3732 * i40e_vc_del_cloud_filter 3733 * @vf: pointer to the VF info 3734 * @msg: pointer to the msg buffer 3735 * 3736 * This function deletes a cloud filter programmed as TC filter for ADq 3737 **/ 3738 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3739 { 3740 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3741 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3742 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3743 struct i40e_cloud_filter cfilter, *cf = NULL; 3744 struct i40e_pf *pf = vf->pf; 3745 struct i40e_vsi *vsi = NULL; 3746 struct hlist_node *node; 3747 int aq_ret = 0; 3748 int i, ret; 3749 3750 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3751 aq_ret = -EINVAL; 3752 goto err; 3753 } 3754 3755 if (!vf->adq_enabled) { 3756 dev_info(&pf->pdev->dev, 3757 "VF %d: ADq not enabled, can't apply cloud filter\n", 3758 vf->vf_id); 3759 aq_ret = -EINVAL; 3760 goto err; 3761 } 3762 3763 if (i40e_validate_cloud_filter(vf, vcf)) { 3764 dev_info(&pf->pdev->dev, 3765 "VF %d: Invalid input, can't apply cloud filter\n", 3766 vf->vf_id); 3767 aq_ret = -EINVAL; 3768 goto err; 3769 } 3770 3771 memset(&cfilter, 0, sizeof(cfilter)); 3772 /* parse destination mac address */ 3773 for (i = 0; i < ETH_ALEN; i++) 3774 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3775 3776 /* parse source mac address */ 3777 for (i = 0; i < ETH_ALEN; i++) 3778 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3779 3780 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3781 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3782 cfilter.src_port = mask.src_port & tcf.src_port; 3783 3784 switch (vcf->flow_type) { 3785 case VIRTCHNL_TCP_V4_FLOW: 3786 cfilter.n_proto = ETH_P_IP; 3787 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3788 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3789 ARRAY_SIZE(tcf.dst_ip)); 3790 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3791 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3792 ARRAY_SIZE(tcf.dst_ip)); 3793 break; 3794 case VIRTCHNL_TCP_V6_FLOW: 3795 cfilter.n_proto = ETH_P_IPV6; 3796 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3797 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3798 sizeof(cfilter.ip.v6.dst_ip6)); 3799 if (mask.src_ip[3] & tcf.src_ip[3]) 3800 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3801 sizeof(cfilter.ip.v6.src_ip6)); 3802 break; 3803 default: 3804 /* TC filter can be configured based on different combinations 3805 * and in this case IP is not a part of filter config 3806 */ 3807 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3808 vf->vf_id); 3809 } 3810 3811 /* get the vsi to which the tc belongs to */ 3812 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3813 cfilter.seid = vsi->seid; 3814 cfilter.flags = vcf->field_flags; 3815 3816 /* Deleting TC filter */ 3817 if (tcf.dst_port) 3818 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3819 else 3820 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3821 if (ret) { 3822 dev_err(&pf->pdev->dev, 3823 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3824 vf->vf_id, ERR_PTR(ret), 3825 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3826 goto err; 3827 } 3828 3829 hlist_for_each_entry_safe(cf, node, 3830 &vf->cloud_filter_list, cloud_node) { 3831 if (cf->seid != cfilter.seid) 3832 continue; 3833 if (mask.dst_port) 3834 if (cfilter.dst_port != cf->dst_port) 3835 continue; 3836 if (mask.dst_mac[0]) 3837 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3838 continue; 3839 /* for ipv4 data to be valid, only first byte of mask is set */ 3840 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3841 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3842 ARRAY_SIZE(tcf.dst_ip))) 3843 continue; 3844 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3845 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3846 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3847 sizeof(cfilter.ip.v6.src_ip6))) 3848 continue; 3849 if (mask.vlan_id) 3850 if (cfilter.vlan_id != cf->vlan_id) 3851 continue; 3852 3853 hlist_del(&cf->cloud_node); 3854 kfree(cf); 3855 vf->num_cloud_filters--; 3856 } 3857 3858 err: 3859 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3860 aq_ret); 3861 } 3862 3863 /** 3864 * i40e_vc_add_cloud_filter 3865 * @vf: pointer to the VF info 3866 * @msg: pointer to the msg buffer 3867 * 3868 * This function adds a cloud filter programmed as TC filter for ADq 3869 **/ 3870 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3871 { 3872 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3873 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3874 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3875 struct i40e_cloud_filter *cfilter = NULL; 3876 struct i40e_pf *pf = vf->pf; 3877 struct i40e_vsi *vsi = NULL; 3878 int aq_ret = 0; 3879 int i; 3880 3881 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3882 aq_ret = -EINVAL; 3883 goto err_out; 3884 } 3885 3886 if (!vf->adq_enabled) { 3887 dev_info(&pf->pdev->dev, 3888 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3889 vf->vf_id); 3890 aq_ret = -EINVAL; 3891 goto err_out; 3892 } 3893 3894 if (i40e_validate_cloud_filter(vf, vcf)) { 3895 dev_info(&pf->pdev->dev, 3896 "VF %d: Invalid input/s, can't apply cloud filter\n", 3897 vf->vf_id); 3898 aq_ret = -EINVAL; 3899 goto err_out; 3900 } 3901 3902 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3903 if (!cfilter) { 3904 aq_ret = -ENOMEM; 3905 goto err_out; 3906 } 3907 3908 /* parse destination mac address */ 3909 for (i = 0; i < ETH_ALEN; i++) 3910 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3911 3912 /* parse source mac address */ 3913 for (i = 0; i < ETH_ALEN; i++) 3914 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3915 3916 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3917 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3918 cfilter->src_port = mask.src_port & tcf.src_port; 3919 3920 switch (vcf->flow_type) { 3921 case VIRTCHNL_TCP_V4_FLOW: 3922 cfilter->n_proto = ETH_P_IP; 3923 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3924 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3925 ARRAY_SIZE(tcf.dst_ip)); 3926 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3927 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3928 ARRAY_SIZE(tcf.dst_ip)); 3929 break; 3930 case VIRTCHNL_TCP_V6_FLOW: 3931 cfilter->n_proto = ETH_P_IPV6; 3932 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3933 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3934 sizeof(cfilter->ip.v6.dst_ip6)); 3935 if (mask.src_ip[3] & tcf.src_ip[3]) 3936 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3937 sizeof(cfilter->ip.v6.src_ip6)); 3938 break; 3939 default: 3940 /* TC filter can be configured based on different combinations 3941 * and in this case IP is not a part of filter config 3942 */ 3943 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3944 vf->vf_id); 3945 } 3946 3947 /* get the VSI to which the TC belongs to */ 3948 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3949 cfilter->seid = vsi->seid; 3950 cfilter->flags = vcf->field_flags; 3951 3952 /* Adding cloud filter programmed as TC filter */ 3953 if (tcf.dst_port) 3954 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3955 else 3956 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3957 if (aq_ret) { 3958 dev_err(&pf->pdev->dev, 3959 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n", 3960 vf->vf_id, ERR_PTR(aq_ret), 3961 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3962 goto err_free; 3963 } 3964 3965 INIT_HLIST_NODE(&cfilter->cloud_node); 3966 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3967 /* release the pointer passing it to the collection */ 3968 cfilter = NULL; 3969 vf->num_cloud_filters++; 3970 err_free: 3971 kfree(cfilter); 3972 err_out: 3973 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3974 aq_ret); 3975 } 3976 3977 /** 3978 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3979 * @vf: pointer to the VF info 3980 * @msg: pointer to the msg buffer 3981 **/ 3982 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3983 { 3984 struct virtchnl_tc_info *tci = 3985 (struct virtchnl_tc_info *)msg; 3986 struct i40e_pf *pf = vf->pf; 3987 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3988 int i, adq_request_qps = 0; 3989 int aq_ret = 0; 3990 u64 speed = 0; 3991 3992 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3993 aq_ret = -EINVAL; 3994 goto err; 3995 } 3996 3997 /* ADq cannot be applied if spoof check is ON */ 3998 if (vf->spoofchk) { 3999 dev_err(&pf->pdev->dev, 4000 "Spoof check is ON, turn it OFF to enable ADq\n"); 4001 aq_ret = -EINVAL; 4002 goto err; 4003 } 4004 4005 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 4006 dev_err(&pf->pdev->dev, 4007 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 4008 vf->vf_id); 4009 aq_ret = -EINVAL; 4010 goto err; 4011 } 4012 4013 /* max number of traffic classes for VF currently capped at 4 */ 4014 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 4015 dev_err(&pf->pdev->dev, 4016 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 4017 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 4018 aq_ret = -EINVAL; 4019 goto err; 4020 } 4021 4022 /* validate queues for each TC */ 4023 for (i = 0; i < tci->num_tc; i++) 4024 if (!tci->list[i].count || 4025 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 4026 dev_err(&pf->pdev->dev, 4027 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 4028 vf->vf_id, i, tci->list[i].count, 4029 I40E_DEFAULT_QUEUES_PER_VF); 4030 aq_ret = -EINVAL; 4031 goto err; 4032 } 4033 4034 /* need Max VF queues but already have default number of queues */ 4035 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 4036 4037 if (pf->queues_left < adq_request_qps) { 4038 dev_err(&pf->pdev->dev, 4039 "No queues left to allocate to VF %d\n", 4040 vf->vf_id); 4041 aq_ret = -EINVAL; 4042 goto err; 4043 } else { 4044 /* we need to allocate max VF queues to enable ADq so as to 4045 * make sure ADq enabled VF always gets back queues when it 4046 * goes through a reset. 4047 */ 4048 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 4049 } 4050 4051 /* get link speed in MB to validate rate limit */ 4052 speed = i40e_vc_link_speed2mbps(ls->link_speed); 4053 if (speed == SPEED_UNKNOWN) { 4054 dev_err(&pf->pdev->dev, 4055 "Cannot detect link speed\n"); 4056 aq_ret = -EINVAL; 4057 goto err; 4058 } 4059 4060 /* parse data from the queue channel info */ 4061 vf->num_tc = tci->num_tc; 4062 for (i = 0; i < vf->num_tc; i++) { 4063 if (tci->list[i].max_tx_rate) { 4064 if (tci->list[i].max_tx_rate > speed) { 4065 dev_err(&pf->pdev->dev, 4066 "Invalid max tx rate %llu specified for VF %d.", 4067 tci->list[i].max_tx_rate, 4068 vf->vf_id); 4069 aq_ret = -EINVAL; 4070 goto err; 4071 } else { 4072 vf->ch[i].max_tx_rate = 4073 tci->list[i].max_tx_rate; 4074 } 4075 } 4076 vf->ch[i].num_qps = tci->list[i].count; 4077 } 4078 4079 /* set this flag only after making sure all inputs are sane */ 4080 vf->adq_enabled = true; 4081 4082 /* reset the VF in order to allocate resources */ 4083 i40e_vc_reset_vf(vf, true); 4084 4085 return 0; 4086 4087 /* send the response to the VF */ 4088 err: 4089 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 4090 aq_ret); 4091 } 4092 4093 /** 4094 * i40e_vc_del_qch_msg 4095 * @vf: pointer to the VF info 4096 * @msg: pointer to the msg buffer 4097 **/ 4098 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 4099 { 4100 struct i40e_pf *pf = vf->pf; 4101 int aq_ret = 0; 4102 4103 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4104 aq_ret = -EINVAL; 4105 goto err; 4106 } 4107 4108 if (vf->adq_enabled) { 4109 i40e_del_all_cloud_filters(vf); 4110 i40e_del_qch(vf); 4111 vf->adq_enabled = false; 4112 vf->num_tc = 0; 4113 dev_info(&pf->pdev->dev, 4114 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4115 vf->vf_id); 4116 } else { 4117 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4118 vf->vf_id); 4119 aq_ret = -EINVAL; 4120 } 4121 4122 /* reset the VF in order to allocate resources */ 4123 i40e_vc_reset_vf(vf, true); 4124 4125 return 0; 4126 4127 err: 4128 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4129 aq_ret); 4130 } 4131 4132 /** 4133 * i40e_vc_process_vf_msg 4134 * @pf: pointer to the PF structure 4135 * @vf_id: source VF id 4136 * @v_opcode: operation code 4137 * @v_retval: unused return value code 4138 * @msg: pointer to the msg buffer 4139 * @msglen: msg length 4140 * 4141 * called from the common aeq/arq handler to 4142 * process request from VF 4143 **/ 4144 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4145 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4146 { 4147 struct i40e_hw *hw = &pf->hw; 4148 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4149 struct i40e_vf *vf; 4150 int ret; 4151 4152 pf->vf_aq_requests++; 4153 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4154 return -EINVAL; 4155 vf = &(pf->vf[local_vf_id]); 4156 4157 /* Check if VF is disabled. */ 4158 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4159 return -EINVAL; 4160 4161 /* perform basic checks on the msg */ 4162 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4163 4164 if (ret) { 4165 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL); 4166 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4167 local_vf_id, v_opcode, msglen); 4168 return ret; 4169 } 4170 4171 switch (v_opcode) { 4172 case VIRTCHNL_OP_VERSION: 4173 ret = i40e_vc_get_version_msg(vf, msg); 4174 break; 4175 case VIRTCHNL_OP_GET_VF_RESOURCES: 4176 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4177 i40e_vc_notify_vf_link_state(vf); 4178 break; 4179 case VIRTCHNL_OP_RESET_VF: 4180 i40e_vc_reset_vf(vf, false); 4181 ret = 0; 4182 break; 4183 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4184 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4185 break; 4186 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4187 ret = i40e_vc_config_queues_msg(vf, msg); 4188 break; 4189 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4190 ret = i40e_vc_config_irq_map_msg(vf, msg); 4191 break; 4192 case VIRTCHNL_OP_ENABLE_QUEUES: 4193 ret = i40e_vc_enable_queues_msg(vf, msg); 4194 i40e_vc_notify_vf_link_state(vf); 4195 break; 4196 case VIRTCHNL_OP_DISABLE_QUEUES: 4197 ret = i40e_vc_disable_queues_msg(vf, msg); 4198 break; 4199 case VIRTCHNL_OP_ADD_ETH_ADDR: 4200 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4201 break; 4202 case VIRTCHNL_OP_DEL_ETH_ADDR: 4203 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4204 break; 4205 case VIRTCHNL_OP_ADD_VLAN: 4206 ret = i40e_vc_add_vlan_msg(vf, msg); 4207 break; 4208 case VIRTCHNL_OP_DEL_VLAN: 4209 ret = i40e_vc_remove_vlan_msg(vf, msg); 4210 break; 4211 case VIRTCHNL_OP_GET_STATS: 4212 ret = i40e_vc_get_stats_msg(vf, msg); 4213 break; 4214 case VIRTCHNL_OP_RDMA: 4215 ret = i40e_vc_rdma_msg(vf, msg, msglen); 4216 break; 4217 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP: 4218 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true); 4219 break; 4220 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP: 4221 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false); 4222 break; 4223 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4224 ret = i40e_vc_config_rss_key(vf, msg); 4225 break; 4226 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4227 ret = i40e_vc_config_rss_lut(vf, msg); 4228 break; 4229 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4230 ret = i40e_vc_get_rss_hena(vf, msg); 4231 break; 4232 case VIRTCHNL_OP_SET_RSS_HENA: 4233 ret = i40e_vc_set_rss_hena(vf, msg); 4234 break; 4235 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4236 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4237 break; 4238 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4239 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4240 break; 4241 case VIRTCHNL_OP_REQUEST_QUEUES: 4242 ret = i40e_vc_request_queues_msg(vf, msg); 4243 break; 4244 case VIRTCHNL_OP_ENABLE_CHANNELS: 4245 ret = i40e_vc_add_qch_msg(vf, msg); 4246 break; 4247 case VIRTCHNL_OP_DISABLE_CHANNELS: 4248 ret = i40e_vc_del_qch_msg(vf, msg); 4249 break; 4250 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4251 ret = i40e_vc_add_cloud_filter(vf, msg); 4252 break; 4253 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4254 ret = i40e_vc_del_cloud_filter(vf, msg); 4255 break; 4256 case VIRTCHNL_OP_UNKNOWN: 4257 default: 4258 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4259 v_opcode, local_vf_id); 4260 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4261 -EOPNOTSUPP); 4262 break; 4263 } 4264 4265 return ret; 4266 } 4267 4268 /** 4269 * i40e_vc_process_vflr_event 4270 * @pf: pointer to the PF structure 4271 * 4272 * called from the vlfr irq handler to 4273 * free up VF resources and state variables 4274 **/ 4275 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4276 { 4277 struct i40e_hw *hw = &pf->hw; 4278 u32 reg, reg_idx, bit_idx; 4279 struct i40e_vf *vf; 4280 int vf_id; 4281 4282 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4283 return 0; 4284 4285 /* Re-enable the VFLR interrupt cause here, before looking for which 4286 * VF got reset. Otherwise, if another VF gets a reset while the 4287 * first one is being processed, that interrupt will be lost, and 4288 * that VF will be stuck in reset forever. 4289 */ 4290 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4291 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4292 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4293 i40e_flush(hw); 4294 4295 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4296 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4297 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4298 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4299 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4300 vf = &pf->vf[vf_id]; 4301 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4302 if (reg & BIT(bit_idx)) 4303 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4304 i40e_reset_vf(vf, true); 4305 } 4306 4307 return 0; 4308 } 4309 4310 /** 4311 * i40e_validate_vf 4312 * @pf: the physical function 4313 * @vf_id: VF identifier 4314 * 4315 * Check that the VF is enabled and the VSI exists. 4316 * 4317 * Returns 0 on success, negative on failure 4318 **/ 4319 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4320 { 4321 struct i40e_vsi *vsi; 4322 struct i40e_vf *vf; 4323 int ret = 0; 4324 4325 if (vf_id >= pf->num_alloc_vfs) { 4326 dev_err(&pf->pdev->dev, 4327 "Invalid VF Identifier %d\n", vf_id); 4328 ret = -EINVAL; 4329 goto err_out; 4330 } 4331 vf = &pf->vf[vf_id]; 4332 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4333 if (!vsi) 4334 ret = -EINVAL; 4335 err_out: 4336 return ret; 4337 } 4338 4339 /** 4340 * i40e_check_vf_init_timeout 4341 * @vf: the virtual function 4342 * 4343 * Check that the VF's initialization was successfully done and if not 4344 * wait up to 300ms for its finish. 4345 * 4346 * Returns true when VF is initialized, false on timeout 4347 **/ 4348 static bool i40e_check_vf_init_timeout(struct i40e_vf *vf) 4349 { 4350 int i; 4351 4352 /* When the VF is resetting wait until it is done. 4353 * It can take up to 200 milliseconds, but wait for 4354 * up to 300 milliseconds to be safe. 4355 */ 4356 for (i = 0; i < 15; i++) { 4357 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4358 return true; 4359 msleep(20); 4360 } 4361 4362 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4363 dev_err(&vf->pf->pdev->dev, 4364 "VF %d still in reset. Try again.\n", vf->vf_id); 4365 return false; 4366 } 4367 4368 return true; 4369 } 4370 4371 /** 4372 * i40e_ndo_set_vf_mac 4373 * @netdev: network interface device structure 4374 * @vf_id: VF identifier 4375 * @mac: mac address 4376 * 4377 * program VF mac address 4378 **/ 4379 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4380 { 4381 struct i40e_netdev_priv *np = netdev_priv(netdev); 4382 struct i40e_vsi *vsi = np->vsi; 4383 struct i40e_pf *pf = vsi->back; 4384 struct i40e_mac_filter *f; 4385 struct i40e_vf *vf; 4386 int ret = 0; 4387 struct hlist_node *h; 4388 int bkt; 4389 4390 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4391 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4392 return -EAGAIN; 4393 } 4394 4395 /* validate the request */ 4396 ret = i40e_validate_vf(pf, vf_id); 4397 if (ret) 4398 goto error_param; 4399 4400 vf = &pf->vf[vf_id]; 4401 if (!i40e_check_vf_init_timeout(vf)) { 4402 ret = -EAGAIN; 4403 goto error_param; 4404 } 4405 vsi = pf->vsi[vf->lan_vsi_idx]; 4406 4407 if (is_multicast_ether_addr(mac)) { 4408 dev_err(&pf->pdev->dev, 4409 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4410 ret = -EINVAL; 4411 goto error_param; 4412 } 4413 4414 /* Lock once because below invoked function add/del_filter requires 4415 * mac_filter_hash_lock to be held 4416 */ 4417 spin_lock_bh(&vsi->mac_filter_hash_lock); 4418 4419 /* delete the temporary mac address */ 4420 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4421 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4422 4423 /* Delete all the filters for this VSI - we're going to kill it 4424 * anyway. 4425 */ 4426 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4427 __i40e_del_filter(vsi, f); 4428 4429 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4430 4431 /* program mac filter */ 4432 if (i40e_sync_vsi_filters(vsi)) { 4433 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4434 ret = -EIO; 4435 goto error_param; 4436 } 4437 ether_addr_copy(vf->default_lan_addr.addr, mac); 4438 4439 if (is_zero_ether_addr(mac)) { 4440 vf->pf_set_mac = false; 4441 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4442 } else { 4443 vf->pf_set_mac = true; 4444 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4445 mac, vf_id); 4446 } 4447 4448 /* Force the VF interface down so it has to bring up with new MAC 4449 * address 4450 */ 4451 i40e_vc_reset_vf(vf, true); 4452 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4453 4454 error_param: 4455 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4456 return ret; 4457 } 4458 4459 /** 4460 * i40e_ndo_set_vf_port_vlan 4461 * @netdev: network interface device structure 4462 * @vf_id: VF identifier 4463 * @vlan_id: mac address 4464 * @qos: priority setting 4465 * @vlan_proto: vlan protocol 4466 * 4467 * program VF vlan id and/or qos 4468 **/ 4469 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4470 u16 vlan_id, u8 qos, __be16 vlan_proto) 4471 { 4472 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4473 struct i40e_netdev_priv *np = netdev_priv(netdev); 4474 bool allmulti = false, alluni = false; 4475 struct i40e_pf *pf = np->vsi->back; 4476 struct i40e_vsi *vsi; 4477 struct i40e_vf *vf; 4478 int ret = 0; 4479 4480 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4481 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4482 return -EAGAIN; 4483 } 4484 4485 /* validate the request */ 4486 ret = i40e_validate_vf(pf, vf_id); 4487 if (ret) 4488 goto error_pvid; 4489 4490 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4491 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4492 ret = -EINVAL; 4493 goto error_pvid; 4494 } 4495 4496 if (vlan_proto != htons(ETH_P_8021Q)) { 4497 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4498 ret = -EPROTONOSUPPORT; 4499 goto error_pvid; 4500 } 4501 4502 vf = &pf->vf[vf_id]; 4503 if (!i40e_check_vf_init_timeout(vf)) { 4504 ret = -EAGAIN; 4505 goto error_pvid; 4506 } 4507 vsi = pf->vsi[vf->lan_vsi_idx]; 4508 4509 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4510 /* duplicate request, so just return success */ 4511 goto error_pvid; 4512 4513 i40e_vlan_stripping_enable(vsi); 4514 4515 /* Locked once because multiple functions below iterate list */ 4516 spin_lock_bh(&vsi->mac_filter_hash_lock); 4517 4518 /* Check for condition where there was already a port VLAN ID 4519 * filter set and now it is being deleted by setting it to zero. 4520 * Additionally check for the condition where there was a port 4521 * VLAN but now there is a new and different port VLAN being set. 4522 * Before deleting all the old VLAN filters we must add new ones 4523 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4524 * MAC addresses deleted. 4525 */ 4526 if ((!(vlan_id || qos) || 4527 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4528 vsi->info.pvid) { 4529 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4530 if (ret) { 4531 dev_info(&vsi->back->pdev->dev, 4532 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4533 vsi->back->hw.aq.asq_last_status); 4534 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4535 goto error_pvid; 4536 } 4537 } 4538 4539 if (vsi->info.pvid) { 4540 /* remove all filters on the old VLAN */ 4541 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4542 VLAN_VID_MASK)); 4543 } 4544 4545 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4546 4547 /* disable promisc modes in case they were enabled */ 4548 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4549 allmulti, alluni); 4550 if (ret) { 4551 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4552 goto error_pvid; 4553 } 4554 4555 if (vlan_id || qos) 4556 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4557 else 4558 i40e_vsi_remove_pvid(vsi); 4559 spin_lock_bh(&vsi->mac_filter_hash_lock); 4560 4561 if (vlan_id) { 4562 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4563 vlan_id, qos, vf_id); 4564 4565 /* add new VLAN filter for each MAC */ 4566 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4567 if (ret) { 4568 dev_info(&vsi->back->pdev->dev, 4569 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4570 vsi->back->hw.aq.asq_last_status); 4571 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4572 goto error_pvid; 4573 } 4574 4575 /* remove the previously added non-VLAN MAC filters */ 4576 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4577 } 4578 4579 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4580 4581 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4582 alluni = true; 4583 4584 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4585 allmulti = true; 4586 4587 /* Schedule the worker thread to take care of applying changes */ 4588 i40e_service_event_schedule(vsi->back); 4589 4590 if (ret) { 4591 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4592 goto error_pvid; 4593 } 4594 4595 /* The Port VLAN needs to be saved across resets the same as the 4596 * default LAN MAC address. 4597 */ 4598 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4599 4600 i40e_vc_reset_vf(vf, true); 4601 /* During reset the VF got a new VSI, so refresh a pointer. */ 4602 vsi = pf->vsi[vf->lan_vsi_idx]; 4603 4604 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4605 if (ret) { 4606 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4607 goto error_pvid; 4608 } 4609 4610 ret = 0; 4611 4612 error_pvid: 4613 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4614 return ret; 4615 } 4616 4617 /** 4618 * i40e_ndo_set_vf_bw 4619 * @netdev: network interface device structure 4620 * @vf_id: VF identifier 4621 * @min_tx_rate: Minimum Tx rate 4622 * @max_tx_rate: Maximum Tx rate 4623 * 4624 * configure VF Tx rate 4625 **/ 4626 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4627 int max_tx_rate) 4628 { 4629 struct i40e_netdev_priv *np = netdev_priv(netdev); 4630 struct i40e_pf *pf = np->vsi->back; 4631 struct i40e_vsi *vsi; 4632 struct i40e_vf *vf; 4633 int ret = 0; 4634 4635 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4636 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4637 return -EAGAIN; 4638 } 4639 4640 /* validate the request */ 4641 ret = i40e_validate_vf(pf, vf_id); 4642 if (ret) 4643 goto error; 4644 4645 if (min_tx_rate) { 4646 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4647 min_tx_rate, vf_id); 4648 ret = -EINVAL; 4649 goto error; 4650 } 4651 4652 vf = &pf->vf[vf_id]; 4653 if (!i40e_check_vf_init_timeout(vf)) { 4654 ret = -EAGAIN; 4655 goto error; 4656 } 4657 vsi = pf->vsi[vf->lan_vsi_idx]; 4658 4659 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4660 if (ret) 4661 goto error; 4662 4663 vf->tx_rate = max_tx_rate; 4664 error: 4665 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4666 return ret; 4667 } 4668 4669 /** 4670 * i40e_ndo_get_vf_config 4671 * @netdev: network interface device structure 4672 * @vf_id: VF identifier 4673 * @ivi: VF configuration structure 4674 * 4675 * return VF configuration 4676 **/ 4677 int i40e_ndo_get_vf_config(struct net_device *netdev, 4678 int vf_id, struct ifla_vf_info *ivi) 4679 { 4680 struct i40e_netdev_priv *np = netdev_priv(netdev); 4681 struct i40e_vsi *vsi = np->vsi; 4682 struct i40e_pf *pf = vsi->back; 4683 struct i40e_vf *vf; 4684 int ret = 0; 4685 4686 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4687 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4688 return -EAGAIN; 4689 } 4690 4691 /* validate the request */ 4692 ret = i40e_validate_vf(pf, vf_id); 4693 if (ret) 4694 goto error_param; 4695 4696 vf = &pf->vf[vf_id]; 4697 /* first vsi is always the LAN vsi */ 4698 vsi = pf->vsi[vf->lan_vsi_idx]; 4699 if (!vsi) { 4700 ret = -ENOENT; 4701 goto error_param; 4702 } 4703 4704 ivi->vf = vf_id; 4705 4706 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4707 4708 ivi->max_tx_rate = vf->tx_rate; 4709 ivi->min_tx_rate = 0; 4710 ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK); 4711 ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK); 4712 if (vf->link_forced == false) 4713 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4714 else if (vf->link_up == true) 4715 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4716 else 4717 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4718 ivi->spoofchk = vf->spoofchk; 4719 ivi->trusted = vf->trusted; 4720 ret = 0; 4721 4722 error_param: 4723 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4724 return ret; 4725 } 4726 4727 /** 4728 * i40e_ndo_set_vf_link_state 4729 * @netdev: network interface device structure 4730 * @vf_id: VF identifier 4731 * @link: required link state 4732 * 4733 * Set the link state of a specified VF, regardless of physical link state 4734 **/ 4735 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4736 { 4737 struct i40e_netdev_priv *np = netdev_priv(netdev); 4738 struct i40e_pf *pf = np->vsi->back; 4739 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4740 struct virtchnl_pf_event pfe; 4741 struct i40e_hw *hw = &pf->hw; 4742 struct i40e_vsi *vsi; 4743 unsigned long q_map; 4744 struct i40e_vf *vf; 4745 int abs_vf_id; 4746 int ret = 0; 4747 int tmp; 4748 4749 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4750 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4751 return -EAGAIN; 4752 } 4753 4754 /* validate the request */ 4755 if (vf_id >= pf->num_alloc_vfs) { 4756 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4757 ret = -EINVAL; 4758 goto error_out; 4759 } 4760 4761 vf = &pf->vf[vf_id]; 4762 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4763 4764 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4765 pfe.severity = PF_EVENT_SEVERITY_INFO; 4766 4767 switch (link) { 4768 case IFLA_VF_LINK_STATE_AUTO: 4769 vf->link_forced = false; 4770 vf->is_disabled_from_host = false; 4771 /* reset needed to reinit VF resources */ 4772 i40e_vc_reset_vf(vf, true); 4773 i40e_set_vf_link_state(vf, &pfe, ls); 4774 break; 4775 case IFLA_VF_LINK_STATE_ENABLE: 4776 vf->link_forced = true; 4777 vf->link_up = true; 4778 vf->is_disabled_from_host = false; 4779 /* reset needed to reinit VF resources */ 4780 i40e_vc_reset_vf(vf, true); 4781 i40e_set_vf_link_state(vf, &pfe, ls); 4782 break; 4783 case IFLA_VF_LINK_STATE_DISABLE: 4784 vf->link_forced = true; 4785 vf->link_up = false; 4786 i40e_set_vf_link_state(vf, &pfe, ls); 4787 4788 vsi = pf->vsi[vf->lan_vsi_idx]; 4789 q_map = BIT(vsi->num_queue_pairs) - 1; 4790 4791 vf->is_disabled_from_host = true; 4792 4793 /* Try to stop both Tx&Rx rings even if one of the calls fails 4794 * to ensure we stop the rings even in case of errors. 4795 * If any of them returns with an error then the first 4796 * error that occurred will be returned. 4797 */ 4798 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false); 4799 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false); 4800 4801 ret = tmp ? tmp : ret; 4802 break; 4803 default: 4804 ret = -EINVAL; 4805 goto error_out; 4806 } 4807 /* Notify the VF of its new link state */ 4808 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4809 0, (u8 *)&pfe, sizeof(pfe), NULL); 4810 4811 error_out: 4812 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4813 return ret; 4814 } 4815 4816 /** 4817 * i40e_ndo_set_vf_spoofchk 4818 * @netdev: network interface device structure 4819 * @vf_id: VF identifier 4820 * @enable: flag to enable or disable feature 4821 * 4822 * Enable or disable VF spoof checking 4823 **/ 4824 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4825 { 4826 struct i40e_netdev_priv *np = netdev_priv(netdev); 4827 struct i40e_vsi *vsi = np->vsi; 4828 struct i40e_pf *pf = vsi->back; 4829 struct i40e_vsi_context ctxt; 4830 struct i40e_hw *hw = &pf->hw; 4831 struct i40e_vf *vf; 4832 int ret = 0; 4833 4834 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4835 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4836 return -EAGAIN; 4837 } 4838 4839 /* validate the request */ 4840 if (vf_id >= pf->num_alloc_vfs) { 4841 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4842 ret = -EINVAL; 4843 goto out; 4844 } 4845 4846 vf = &(pf->vf[vf_id]); 4847 if (!i40e_check_vf_init_timeout(vf)) { 4848 ret = -EAGAIN; 4849 goto out; 4850 } 4851 4852 if (enable == vf->spoofchk) 4853 goto out; 4854 4855 vf->spoofchk = enable; 4856 memset(&ctxt, 0, sizeof(ctxt)); 4857 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4858 ctxt.pf_num = pf->hw.pf_id; 4859 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4860 if (enable) 4861 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4862 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4863 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4864 if (ret) { 4865 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4866 ret); 4867 ret = -EIO; 4868 } 4869 out: 4870 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4871 return ret; 4872 } 4873 4874 /** 4875 * i40e_ndo_set_vf_trust 4876 * @netdev: network interface device structure of the pf 4877 * @vf_id: VF identifier 4878 * @setting: trust setting 4879 * 4880 * Enable or disable VF trust setting 4881 **/ 4882 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4883 { 4884 struct i40e_netdev_priv *np = netdev_priv(netdev); 4885 struct i40e_pf *pf = np->vsi->back; 4886 struct i40e_vf *vf; 4887 int ret = 0; 4888 4889 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4890 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4891 return -EAGAIN; 4892 } 4893 4894 /* validate the request */ 4895 if (vf_id >= pf->num_alloc_vfs) { 4896 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4897 ret = -EINVAL; 4898 goto out; 4899 } 4900 4901 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4902 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4903 ret = -EINVAL; 4904 goto out; 4905 } 4906 4907 vf = &pf->vf[vf_id]; 4908 4909 if (setting == vf->trusted) 4910 goto out; 4911 4912 vf->trusted = setting; 4913 4914 /* request PF to sync mac/vlan filters for the VF */ 4915 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4916 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4917 4918 i40e_vc_reset_vf(vf, true); 4919 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4920 vf_id, setting ? "" : "un"); 4921 4922 if (vf->adq_enabled) { 4923 if (!vf->trusted) { 4924 dev_info(&pf->pdev->dev, 4925 "VF %u no longer Trusted, deleting all cloud filters\n", 4926 vf_id); 4927 i40e_del_all_cloud_filters(vf); 4928 } 4929 } 4930 4931 out: 4932 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4933 return ret; 4934 } 4935 4936 /** 4937 * i40e_get_vf_stats - populate some stats for the VF 4938 * @netdev: the netdev of the PF 4939 * @vf_id: the host OS identifier (0-127) 4940 * @vf_stats: pointer to the OS memory to be initialized 4941 */ 4942 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4943 struct ifla_vf_stats *vf_stats) 4944 { 4945 struct i40e_netdev_priv *np = netdev_priv(netdev); 4946 struct i40e_pf *pf = np->vsi->back; 4947 struct i40e_eth_stats *stats; 4948 struct i40e_vsi *vsi; 4949 struct i40e_vf *vf; 4950 4951 /* validate the request */ 4952 if (i40e_validate_vf(pf, vf_id)) 4953 return -EINVAL; 4954 4955 vf = &pf->vf[vf_id]; 4956 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4957 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4958 return -EBUSY; 4959 } 4960 4961 vsi = pf->vsi[vf->lan_vsi_idx]; 4962 if (!vsi) 4963 return -EINVAL; 4964 4965 i40e_update_eth_stats(vsi); 4966 stats = &vsi->eth_stats; 4967 4968 memset(vf_stats, 0, sizeof(*vf_stats)); 4969 4970 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4971 stats->rx_multicast; 4972 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4973 stats->tx_multicast; 4974 vf_stats->rx_bytes = stats->rx_bytes; 4975 vf_stats->tx_bytes = stats->tx_bytes; 4976 vf_stats->broadcast = stats->rx_broadcast; 4977 vf_stats->multicast = stats->rx_multicast; 4978 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other; 4979 vf_stats->tx_dropped = stats->tx_discards; 4980 4981 return 0; 4982 } 4983