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 = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 504 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 505 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 506 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 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 = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 585 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 586 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 587 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 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 |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 689 & I40E_QTX_CTL_PF_INDX_MASK); 690 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 691 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 692 & I40E_QTX_CTL_VFVM_INDX_MASK); 693 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 694 i40e_flush(hw); 695 696 error_context: 697 return ret; 698 } 699 700 /** 701 * i40e_config_vsi_rx_queue 702 * @vf: pointer to the VF info 703 * @vsi_id: id of VSI as provided by the FW 704 * @vsi_queue_id: vsi relative queue index 705 * @info: config. info 706 * 707 * configure rx queue 708 **/ 709 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 710 u16 vsi_queue_id, 711 struct virtchnl_rxq_info *info) 712 { 713 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 714 struct i40e_pf *pf = vf->pf; 715 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 716 struct i40e_hw *hw = &pf->hw; 717 struct i40e_hmc_obj_rxq rx_ctx; 718 int ret = 0; 719 720 /* clear the context structure first */ 721 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 722 723 /* only set the required fields */ 724 rx_ctx.base = info->dma_ring_addr / 128; 725 rx_ctx.qlen = info->ring_len; 726 727 if (info->splithdr_enabled) { 728 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 729 I40E_RX_SPLIT_IP | 730 I40E_RX_SPLIT_TCP_UDP | 731 I40E_RX_SPLIT_SCTP; 732 /* header length validation */ 733 if (info->hdr_size > ((2 * 1024) - 64)) { 734 ret = -EINVAL; 735 goto error_param; 736 } 737 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 738 739 /* set split mode 10b */ 740 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 741 } 742 743 /* databuffer length validation */ 744 if (info->databuffer_size > ((16 * 1024) - 128)) { 745 ret = -EINVAL; 746 goto error_param; 747 } 748 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 749 750 /* max pkt. length validation */ 751 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 752 ret = -EINVAL; 753 goto error_param; 754 } 755 rx_ctx.rxmax = info->max_pkt_size; 756 757 /* if port VLAN is configured increase the max packet size */ 758 if (vsi->info.pvid) 759 rx_ctx.rxmax += VLAN_HLEN; 760 761 /* enable 32bytes desc always */ 762 rx_ctx.dsize = 1; 763 764 /* default values */ 765 rx_ctx.lrxqthresh = 1; 766 rx_ctx.crcstrip = 1; 767 rx_ctx.prefena = 1; 768 rx_ctx.l2tsel = 1; 769 770 /* clear the context in the HMC */ 771 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 772 if (ret) { 773 dev_err(&pf->pdev->dev, 774 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 775 pf_queue_id, ret); 776 ret = -ENOENT; 777 goto error_param; 778 } 779 780 /* set the context in the HMC */ 781 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 782 if (ret) { 783 dev_err(&pf->pdev->dev, 784 "Failed to set VF LAN Rx queue context %d error: %d\n", 785 pf_queue_id, ret); 786 ret = -ENOENT; 787 goto error_param; 788 } 789 790 error_param: 791 return ret; 792 } 793 794 /** 795 * i40e_alloc_vsi_res 796 * @vf: pointer to the VF info 797 * @idx: VSI index, applies only for ADq mode, zero otherwise 798 * 799 * alloc VF vsi context & resources 800 **/ 801 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 802 { 803 struct i40e_mac_filter *f = NULL; 804 struct i40e_pf *pf = vf->pf; 805 struct i40e_vsi *vsi; 806 u64 max_tx_rate = 0; 807 int ret = 0; 808 809 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 810 vf->vf_id); 811 812 if (!vsi) { 813 dev_err(&pf->pdev->dev, 814 "add vsi failed for VF %d, aq_err %d\n", 815 vf->vf_id, pf->hw.aq.asq_last_status); 816 ret = -ENOENT; 817 goto error_alloc_vsi_res; 818 } 819 820 if (!idx) { 821 u64 hena = i40e_pf_get_default_rss_hena(pf); 822 u8 broadcast[ETH_ALEN]; 823 824 vf->lan_vsi_idx = vsi->idx; 825 vf->lan_vsi_id = vsi->id; 826 /* If the port VLAN has been configured and then the 827 * VF driver was removed then the VSI port VLAN 828 * configuration was destroyed. Check if there is 829 * a port VLAN and restore the VSI configuration if 830 * needed. 831 */ 832 if (vf->port_vlan_id) 833 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 834 835 spin_lock_bh(&vsi->mac_filter_hash_lock); 836 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 837 f = i40e_add_mac_filter(vsi, 838 vf->default_lan_addr.addr); 839 if (!f) 840 dev_info(&pf->pdev->dev, 841 "Could not add MAC filter %pM for VF %d\n", 842 vf->default_lan_addr.addr, vf->vf_id); 843 } 844 eth_broadcast_addr(broadcast); 845 f = i40e_add_mac_filter(vsi, broadcast); 846 if (!f) 847 dev_info(&pf->pdev->dev, 848 "Could not allocate VF broadcast filter\n"); 849 spin_unlock_bh(&vsi->mac_filter_hash_lock); 850 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 851 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 852 /* program mac filter only for VF VSI */ 853 ret = i40e_sync_vsi_filters(vsi); 854 if (ret) 855 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 856 } 857 858 /* storing VSI index and id for ADq and don't apply the mac filter */ 859 if (vf->adq_enabled) { 860 vf->ch[idx].vsi_idx = vsi->idx; 861 vf->ch[idx].vsi_id = vsi->id; 862 } 863 864 /* Set VF bandwidth if specified */ 865 if (vf->tx_rate) { 866 max_tx_rate = vf->tx_rate; 867 } else if (vf->ch[idx].max_tx_rate) { 868 max_tx_rate = vf->ch[idx].max_tx_rate; 869 } 870 871 if (max_tx_rate) { 872 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 873 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 874 max_tx_rate, 0, NULL); 875 if (ret) 876 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 877 vf->vf_id, ret); 878 } 879 880 error_alloc_vsi_res: 881 return ret; 882 } 883 884 /** 885 * i40e_map_pf_queues_to_vsi 886 * @vf: pointer to the VF info 887 * 888 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 889 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 890 **/ 891 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 892 { 893 struct i40e_pf *pf = vf->pf; 894 struct i40e_hw *hw = &pf->hw; 895 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 896 u16 vsi_id, qps; 897 int i, j; 898 899 if (vf->adq_enabled) 900 num_tc = vf->num_tc; 901 902 for (i = 0; i < num_tc; i++) { 903 if (vf->adq_enabled) { 904 qps = vf->ch[i].num_qps; 905 vsi_id = vf->ch[i].vsi_id; 906 } else { 907 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 908 vsi_id = vf->lan_vsi_id; 909 } 910 911 for (j = 0; j < 7; j++) { 912 if (j * 2 >= qps) { 913 /* end of list */ 914 reg = 0x07FF07FF; 915 } else { 916 u16 qid = i40e_vc_get_pf_queue_id(vf, 917 vsi_id, 918 j * 2); 919 reg = qid; 920 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 921 (j * 2) + 1); 922 reg |= qid << 16; 923 } 924 i40e_write_rx_ctl(hw, 925 I40E_VSILAN_QTABLE(j, vsi_id), 926 reg); 927 } 928 } 929 } 930 931 /** 932 * i40e_map_pf_to_vf_queues 933 * @vf: pointer to the VF info 934 * 935 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 936 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 937 **/ 938 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 939 { 940 struct i40e_pf *pf = vf->pf; 941 struct i40e_hw *hw = &pf->hw; 942 u32 reg, total_qps = 0; 943 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 944 u16 vsi_id, qid; 945 int i, j; 946 947 if (vf->adq_enabled) 948 num_tc = vf->num_tc; 949 950 for (i = 0; i < num_tc; i++) { 951 if (vf->adq_enabled) { 952 qps = vf->ch[i].num_qps; 953 vsi_id = vf->ch[i].vsi_id; 954 } else { 955 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 956 vsi_id = vf->lan_vsi_id; 957 } 958 959 for (j = 0; j < qps; j++) { 960 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 961 962 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 963 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 964 reg); 965 total_qps++; 966 } 967 } 968 } 969 970 /** 971 * i40e_enable_vf_mappings 972 * @vf: pointer to the VF info 973 * 974 * enable VF mappings 975 **/ 976 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 977 { 978 struct i40e_pf *pf = vf->pf; 979 struct i40e_hw *hw = &pf->hw; 980 u32 reg; 981 982 /* Tell the hardware we're using noncontiguous mapping. HW requires 983 * that VF queues be mapped using this method, even when they are 984 * contiguous in real life 985 */ 986 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 987 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 988 989 /* enable VF vplan_qtable mappings */ 990 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 991 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 992 993 i40e_map_pf_to_vf_queues(vf); 994 i40e_map_pf_queues_to_vsi(vf); 995 996 i40e_flush(hw); 997 } 998 999 /** 1000 * i40e_disable_vf_mappings 1001 * @vf: pointer to the VF info 1002 * 1003 * disable VF mappings 1004 **/ 1005 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 1006 { 1007 struct i40e_pf *pf = vf->pf; 1008 struct i40e_hw *hw = &pf->hw; 1009 int i; 1010 1011 /* disable qp mappings */ 1012 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 1013 for (i = 0; i < I40E_MAX_VSI_QP; i++) 1014 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 1015 I40E_QUEUE_END_OF_LIST); 1016 i40e_flush(hw); 1017 } 1018 1019 /** 1020 * i40e_free_vf_res 1021 * @vf: pointer to the VF info 1022 * 1023 * free VF resources 1024 **/ 1025 static void i40e_free_vf_res(struct i40e_vf *vf) 1026 { 1027 struct i40e_pf *pf = vf->pf; 1028 struct i40e_hw *hw = &pf->hw; 1029 u32 reg_idx, reg; 1030 int i, j, msix_vf; 1031 1032 /* Start by disabling VF's configuration API to prevent the OS from 1033 * accessing the VF's VSI after it's freed / invalidated. 1034 */ 1035 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1036 1037 /* It's possible the VF had requeuested more queues than the default so 1038 * do the accounting here when we're about to free them. 1039 */ 1040 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1041 pf->queues_left += vf->num_queue_pairs - 1042 I40E_DEFAULT_QUEUES_PER_VF; 1043 } 1044 1045 /* free vsi & disconnect it from the parent uplink */ 1046 if (vf->lan_vsi_idx) { 1047 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1048 vf->lan_vsi_idx = 0; 1049 vf->lan_vsi_id = 0; 1050 } 1051 1052 /* do the accounting and remove additional ADq VSI's */ 1053 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1054 for (j = 0; j < vf->num_tc; j++) { 1055 /* At this point VSI0 is already released so don't 1056 * release it again and only clear their values in 1057 * structure variables 1058 */ 1059 if (j) 1060 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1061 vf->ch[j].vsi_idx = 0; 1062 vf->ch[j].vsi_id = 0; 1063 } 1064 } 1065 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1066 1067 /* disable interrupts so the VF starts in a known state */ 1068 for (i = 0; i < msix_vf; i++) { 1069 /* format is same for both registers */ 1070 if (0 == i) 1071 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1072 else 1073 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1074 (vf->vf_id)) 1075 + (i - 1)); 1076 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1077 i40e_flush(hw); 1078 } 1079 1080 /* clear the irq settings */ 1081 for (i = 0; i < msix_vf; i++) { 1082 /* format is same for both registers */ 1083 if (0 == i) 1084 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1085 else 1086 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1087 (vf->vf_id)) 1088 + (i - 1)); 1089 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1090 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1091 wr32(hw, reg_idx, reg); 1092 i40e_flush(hw); 1093 } 1094 /* reset some of the state variables keeping track of the resources */ 1095 vf->num_queue_pairs = 0; 1096 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1097 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1098 } 1099 1100 /** 1101 * i40e_alloc_vf_res 1102 * @vf: pointer to the VF info 1103 * 1104 * allocate VF resources 1105 **/ 1106 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1107 { 1108 struct i40e_pf *pf = vf->pf; 1109 int total_queue_pairs = 0; 1110 int ret, idx; 1111 1112 if (vf->num_req_queues && 1113 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1114 pf->num_vf_qps = vf->num_req_queues; 1115 else 1116 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1117 1118 /* allocate hw vsi context & associated resources */ 1119 ret = i40e_alloc_vsi_res(vf, 0); 1120 if (ret) 1121 goto error_alloc; 1122 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1123 1124 /* allocate additional VSIs based on tc information for ADq */ 1125 if (vf->adq_enabled) { 1126 if (pf->queues_left >= 1127 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1128 /* TC 0 always belongs to VF VSI */ 1129 for (idx = 1; idx < vf->num_tc; idx++) { 1130 ret = i40e_alloc_vsi_res(vf, idx); 1131 if (ret) 1132 goto error_alloc; 1133 } 1134 /* send correct number of queues */ 1135 total_queue_pairs = I40E_MAX_VF_QUEUES; 1136 } else { 1137 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1138 vf->vf_id); 1139 vf->adq_enabled = false; 1140 } 1141 } 1142 1143 /* We account for each VF to get a default number of queue pairs. If 1144 * the VF has now requested more, we need to account for that to make 1145 * certain we never request more queues than we actually have left in 1146 * HW. 1147 */ 1148 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1149 pf->queues_left -= 1150 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1151 1152 if (vf->trusted) 1153 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1154 else 1155 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1156 1157 /* store the total qps number for the runtime 1158 * VF req validation 1159 */ 1160 vf->num_queue_pairs = total_queue_pairs; 1161 1162 /* VF is now completely initialized */ 1163 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1164 1165 error_alloc: 1166 if (ret) 1167 i40e_free_vf_res(vf); 1168 1169 return ret; 1170 } 1171 1172 #define VF_DEVICE_STATUS 0xAA 1173 #define VF_TRANS_PENDING_MASK 0x20 1174 /** 1175 * i40e_quiesce_vf_pci 1176 * @vf: pointer to the VF structure 1177 * 1178 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1179 * if the transactions never clear. 1180 **/ 1181 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1182 { 1183 struct i40e_pf *pf = vf->pf; 1184 struct i40e_hw *hw = &pf->hw; 1185 int vf_abs_id, i; 1186 u32 reg; 1187 1188 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1189 1190 wr32(hw, I40E_PF_PCI_CIAA, 1191 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1192 for (i = 0; i < 100; i++) { 1193 reg = rd32(hw, I40E_PF_PCI_CIAD); 1194 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1195 return 0; 1196 udelay(1); 1197 } 1198 return -EIO; 1199 } 1200 1201 /** 1202 * __i40e_getnum_vf_vsi_vlan_filters 1203 * @vsi: pointer to the vsi 1204 * 1205 * called to get the number of VLANs offloaded on this VF 1206 **/ 1207 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1208 { 1209 struct i40e_mac_filter *f; 1210 u16 num_vlans = 0, bkt; 1211 1212 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1213 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1214 num_vlans++; 1215 } 1216 1217 return num_vlans; 1218 } 1219 1220 /** 1221 * i40e_getnum_vf_vsi_vlan_filters 1222 * @vsi: pointer to the vsi 1223 * 1224 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1225 **/ 1226 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1227 { 1228 int num_vlans; 1229 1230 spin_lock_bh(&vsi->mac_filter_hash_lock); 1231 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1232 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1233 1234 return num_vlans; 1235 } 1236 1237 /** 1238 * i40e_get_vlan_list_sync 1239 * @vsi: pointer to the VSI 1240 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1241 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1242 * This array is allocated here, but has to be freed in caller. 1243 * 1244 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1245 **/ 1246 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1247 s16 **vlan_list) 1248 { 1249 struct i40e_mac_filter *f; 1250 int i = 0; 1251 int bkt; 1252 1253 spin_lock_bh(&vsi->mac_filter_hash_lock); 1254 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1255 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1256 if (!(*vlan_list)) 1257 goto err; 1258 1259 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1260 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1261 continue; 1262 (*vlan_list)[i++] = f->vlan; 1263 } 1264 err: 1265 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1266 } 1267 1268 /** 1269 * i40e_set_vsi_promisc 1270 * @vf: pointer to the VF struct 1271 * @seid: VSI number 1272 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1273 * for a given VLAN 1274 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1275 * for a given VLAN 1276 * @vl: List of VLANs - apply filter for given VLANs 1277 * @num_vlans: Number of elements in @vl 1278 **/ 1279 static int 1280 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1281 bool unicast_enable, s16 *vl, u16 num_vlans) 1282 { 1283 struct i40e_pf *pf = vf->pf; 1284 struct i40e_hw *hw = &pf->hw; 1285 int aq_ret, aq_tmp = 0; 1286 int i; 1287 1288 /* No VLAN to set promisc on, set on VSI */ 1289 if (!num_vlans || !vl) { 1290 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1291 multi_enable, 1292 NULL); 1293 if (aq_ret) { 1294 int aq_err = pf->hw.aq.asq_last_status; 1295 1296 dev_err(&pf->pdev->dev, 1297 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1298 vf->vf_id, 1299 ERR_PTR(aq_ret), 1300 i40e_aq_str(&pf->hw, aq_err)); 1301 1302 return aq_ret; 1303 } 1304 1305 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1306 unicast_enable, 1307 NULL, true); 1308 1309 if (aq_ret) { 1310 int aq_err = pf->hw.aq.asq_last_status; 1311 1312 dev_err(&pf->pdev->dev, 1313 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1314 vf->vf_id, 1315 ERR_PTR(aq_ret), 1316 i40e_aq_str(&pf->hw, aq_err)); 1317 } 1318 1319 return aq_ret; 1320 } 1321 1322 for (i = 0; i < num_vlans; i++) { 1323 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1324 multi_enable, 1325 vl[i], NULL); 1326 if (aq_ret) { 1327 int aq_err = pf->hw.aq.asq_last_status; 1328 1329 dev_err(&pf->pdev->dev, 1330 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1331 vf->vf_id, 1332 ERR_PTR(aq_ret), 1333 i40e_aq_str(&pf->hw, aq_err)); 1334 1335 if (!aq_tmp) 1336 aq_tmp = aq_ret; 1337 } 1338 1339 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1340 unicast_enable, 1341 vl[i], NULL); 1342 if (aq_ret) { 1343 int aq_err = pf->hw.aq.asq_last_status; 1344 1345 dev_err(&pf->pdev->dev, 1346 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1347 vf->vf_id, 1348 ERR_PTR(aq_ret), 1349 i40e_aq_str(&pf->hw, aq_err)); 1350 1351 if (!aq_tmp) 1352 aq_tmp = aq_ret; 1353 } 1354 } 1355 1356 if (aq_tmp) 1357 aq_ret = aq_tmp; 1358 1359 return aq_ret; 1360 } 1361 1362 /** 1363 * i40e_config_vf_promiscuous_mode 1364 * @vf: pointer to the VF info 1365 * @vsi_id: VSI id 1366 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1367 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1368 * 1369 * Called from the VF to configure the promiscuous mode of 1370 * VF vsis and from the VF reset path to reset promiscuous mode. 1371 **/ 1372 static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1373 u16 vsi_id, 1374 bool allmulti, 1375 bool alluni) 1376 { 1377 struct i40e_pf *pf = vf->pf; 1378 struct i40e_vsi *vsi; 1379 int aq_ret = 0; 1380 u16 num_vlans; 1381 s16 *vl; 1382 1383 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1384 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1385 return -EINVAL; 1386 1387 if (vf->port_vlan_id) { 1388 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1389 alluni, &vf->port_vlan_id, 1); 1390 return aq_ret; 1391 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1392 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1393 1394 if (!vl) 1395 return -ENOMEM; 1396 1397 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1398 vl, num_vlans); 1399 kfree(vl); 1400 return aq_ret; 1401 } 1402 1403 /* no VLANs to set on, set on VSI */ 1404 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1405 NULL, 0); 1406 return aq_ret; 1407 } 1408 1409 /** 1410 * i40e_sync_vfr_reset 1411 * @hw: pointer to hw struct 1412 * @vf_id: VF identifier 1413 * 1414 * Before trigger hardware reset, we need to know if no other process has 1415 * reserved the hardware for any reset operations. This check is done by 1416 * examining the status of the RSTAT1 register used to signal the reset. 1417 **/ 1418 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1419 { 1420 u32 reg; 1421 int i; 1422 1423 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1424 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1425 I40E_VFINT_ICR0_ADMINQ_MASK; 1426 if (reg) 1427 return 0; 1428 1429 usleep_range(100, 200); 1430 } 1431 1432 return -EAGAIN; 1433 } 1434 1435 /** 1436 * i40e_trigger_vf_reset 1437 * @vf: pointer to the VF structure 1438 * @flr: VFLR was issued or not 1439 * 1440 * Trigger hardware to start a reset for a particular VF. Expects the caller 1441 * to wait the proper amount of time to allow hardware to reset the VF before 1442 * it cleans up and restores VF functionality. 1443 **/ 1444 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1445 { 1446 struct i40e_pf *pf = vf->pf; 1447 struct i40e_hw *hw = &pf->hw; 1448 u32 reg, reg_idx, bit_idx; 1449 bool vf_active; 1450 u32 radq; 1451 1452 /* warn the VF */ 1453 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1454 1455 /* Disable VF's configuration API during reset. The flag is re-enabled 1456 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1457 * It's normally disabled in i40e_free_vf_res(), but it's safer 1458 * to do it earlier to give some time to finish to any VF config 1459 * functions that may still be running at this point. 1460 */ 1461 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1462 1463 /* In the case of a VFLR, the HW has already reset the VF and we 1464 * just need to clean up, so don't hit the VFRTRIG register. 1465 */ 1466 if (!flr) { 1467 /* Sync VFR reset before trigger next one */ 1468 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1469 I40E_VFINT_ICR0_ADMINQ_MASK; 1470 if (vf_active && !radq) 1471 /* waiting for finish reset by virtual driver */ 1472 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1473 dev_info(&pf->pdev->dev, 1474 "Reset VF %d never finished\n", 1475 vf->vf_id); 1476 1477 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1478 * in progress state in rstat1 register. 1479 */ 1480 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1481 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1482 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1483 i40e_flush(hw); 1484 } 1485 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1486 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1487 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1488 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1489 i40e_flush(hw); 1490 1491 if (i40e_quiesce_vf_pci(vf)) 1492 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1493 vf->vf_id); 1494 } 1495 1496 /** 1497 * i40e_cleanup_reset_vf 1498 * @vf: pointer to the VF structure 1499 * 1500 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1501 * have verified whether the reset is finished properly, and ensure the 1502 * minimum amount of wait time has passed. 1503 **/ 1504 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1505 { 1506 struct i40e_pf *pf = vf->pf; 1507 struct i40e_hw *hw = &pf->hw; 1508 u32 reg; 1509 1510 /* disable promisc modes in case they were enabled */ 1511 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1512 1513 /* free VF resources to begin resetting the VSI state */ 1514 i40e_free_vf_res(vf); 1515 1516 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1517 * By doing this we allow HW to access VF memory at any point. If we 1518 * did it any sooner, HW could access memory while it was being freed 1519 * in i40e_free_vf_res(), causing an IOMMU fault. 1520 * 1521 * On the other hand, this needs to be done ASAP, because the VF driver 1522 * is waiting for this to happen and may report a timeout. It's 1523 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1524 * it. 1525 */ 1526 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1527 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1528 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1529 1530 /* reallocate VF resources to finish resetting the VSI state */ 1531 if (!i40e_alloc_vf_res(vf)) { 1532 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1533 i40e_enable_vf_mappings(vf); 1534 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1535 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1536 /* Do not notify the client during VF init */ 1537 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1538 &vf->vf_states)) 1539 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1540 vf->num_vlan = 0; 1541 } 1542 1543 /* Tell the VF driver the reset is done. This needs to be done only 1544 * after VF has been fully initialized, because the VF driver may 1545 * request resources immediately after setting this flag. 1546 */ 1547 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1548 } 1549 1550 /** 1551 * i40e_reset_vf 1552 * @vf: pointer to the VF structure 1553 * @flr: VFLR was issued or not 1554 * 1555 * Returns true if the VF is in reset, resets successfully, or resets 1556 * are disabled and false otherwise. 1557 **/ 1558 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1559 { 1560 struct i40e_pf *pf = vf->pf; 1561 struct i40e_hw *hw = &pf->hw; 1562 bool rsd = false; 1563 u32 reg; 1564 int i; 1565 1566 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1567 return true; 1568 1569 /* Bail out if VFs are disabled. */ 1570 if (test_bit(__I40E_VF_DISABLE, pf->state)) 1571 return true; 1572 1573 /* If VF is being reset already we don't need to continue. */ 1574 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1575 return true; 1576 1577 i40e_trigger_vf_reset(vf, flr); 1578 1579 /* poll VPGEN_VFRSTAT reg to make sure 1580 * that reset is complete 1581 */ 1582 for (i = 0; i < 10; i++) { 1583 /* VF reset requires driver to first reset the VF and then 1584 * poll the status register to make sure that the reset 1585 * completed successfully. Due to internal HW FIFO flushes, 1586 * we must wait 10ms before the register will be valid. 1587 */ 1588 usleep_range(10000, 20000); 1589 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1590 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1591 rsd = true; 1592 break; 1593 } 1594 } 1595 1596 if (flr) 1597 usleep_range(10000, 20000); 1598 1599 if (!rsd) 1600 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1601 vf->vf_id); 1602 usleep_range(10000, 20000); 1603 1604 /* On initial reset, we don't have any queues to disable */ 1605 if (vf->lan_vsi_idx != 0) 1606 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1607 1608 i40e_cleanup_reset_vf(vf); 1609 1610 i40e_flush(hw); 1611 usleep_range(20000, 40000); 1612 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states); 1613 1614 return true; 1615 } 1616 1617 /** 1618 * i40e_reset_all_vfs 1619 * @pf: pointer to the PF structure 1620 * @flr: VFLR was issued or not 1621 * 1622 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1623 * VF, then do all the waiting in one chunk, and finally finish restoring each 1624 * VF after the wait. This is useful during PF routines which need to reset 1625 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1626 * 1627 * Returns true if any VFs were reset, and false otherwise. 1628 **/ 1629 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1630 { 1631 struct i40e_hw *hw = &pf->hw; 1632 struct i40e_vf *vf; 1633 int i, v; 1634 u32 reg; 1635 1636 /* If we don't have any VFs, then there is nothing to reset */ 1637 if (!pf->num_alloc_vfs) 1638 return false; 1639 1640 /* If VFs have been disabled, there is no need to reset */ 1641 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1642 return false; 1643 1644 /* Begin reset on all VFs at once */ 1645 for (v = 0; v < pf->num_alloc_vfs; v++) { 1646 vf = &pf->vf[v]; 1647 /* If VF is being reset no need to trigger reset again */ 1648 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1649 i40e_trigger_vf_reset(&pf->vf[v], flr); 1650 } 1651 1652 /* HW requires some time to make sure it can flush the FIFO for a VF 1653 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1654 * sequence to make sure that it has completed. We'll keep track of 1655 * the VFs using a simple iterator that increments once that VF has 1656 * finished resetting. 1657 */ 1658 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1659 usleep_range(10000, 20000); 1660 1661 /* Check each VF in sequence, beginning with the VF to fail 1662 * the previous check. 1663 */ 1664 while (v < pf->num_alloc_vfs) { 1665 vf = &pf->vf[v]; 1666 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) { 1667 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1668 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1669 break; 1670 } 1671 1672 /* If the current VF has finished resetting, move on 1673 * to the next VF in sequence. 1674 */ 1675 v++; 1676 } 1677 } 1678 1679 if (flr) 1680 usleep_range(10000, 20000); 1681 1682 /* Display a warning if at least one VF didn't manage to reset in 1683 * time, but continue on with the operation. 1684 */ 1685 if (v < pf->num_alloc_vfs) 1686 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1687 pf->vf[v].vf_id); 1688 usleep_range(10000, 20000); 1689 1690 /* Begin disabling all the rings associated with VFs, but do not wait 1691 * between each VF. 1692 */ 1693 for (v = 0; v < pf->num_alloc_vfs; v++) { 1694 /* On initial reset, we don't have any queues to disable */ 1695 if (pf->vf[v].lan_vsi_idx == 0) 1696 continue; 1697 1698 /* If VF is reset in another thread just continue */ 1699 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1700 continue; 1701 1702 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1703 } 1704 1705 /* Now that we've notified HW to disable all of the VF rings, wait 1706 * until they finish. 1707 */ 1708 for (v = 0; v < pf->num_alloc_vfs; v++) { 1709 /* On initial reset, we don't have any queues to disable */ 1710 if (pf->vf[v].lan_vsi_idx == 0) 1711 continue; 1712 1713 /* If VF is reset in another thread just continue */ 1714 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1715 continue; 1716 1717 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1718 } 1719 1720 /* Hw may need up to 50ms to finish disabling the RX queues. We 1721 * minimize the wait by delaying only once for all VFs. 1722 */ 1723 mdelay(50); 1724 1725 /* Finish the reset on each VF */ 1726 for (v = 0; v < pf->num_alloc_vfs; v++) { 1727 /* If VF is reset in another thread just continue */ 1728 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1729 continue; 1730 1731 i40e_cleanup_reset_vf(&pf->vf[v]); 1732 } 1733 1734 i40e_flush(hw); 1735 usleep_range(20000, 40000); 1736 clear_bit(__I40E_VF_DISABLE, pf->state); 1737 1738 return true; 1739 } 1740 1741 /** 1742 * i40e_free_vfs 1743 * @pf: pointer to the PF structure 1744 * 1745 * free VF resources 1746 **/ 1747 void i40e_free_vfs(struct i40e_pf *pf) 1748 { 1749 struct i40e_hw *hw = &pf->hw; 1750 u32 reg_idx, bit_idx; 1751 int i, tmp, vf_id; 1752 1753 if (!pf->vf) 1754 return; 1755 1756 set_bit(__I40E_VFS_RELEASING, pf->state); 1757 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1758 usleep_range(1000, 2000); 1759 1760 i40e_notify_client_of_vf_enable(pf, 0); 1761 1762 /* Disable IOV before freeing resources. This lets any VF drivers 1763 * running in the host get themselves cleaned up before we yank 1764 * the carpet out from underneath their feet. 1765 */ 1766 if (!pci_vfs_assigned(pf->pdev)) 1767 pci_disable_sriov(pf->pdev); 1768 else 1769 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1770 1771 /* Amortize wait time by stopping all VFs at the same time */ 1772 for (i = 0; i < pf->num_alloc_vfs; i++) { 1773 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1774 continue; 1775 1776 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1777 } 1778 1779 for (i = 0; i < pf->num_alloc_vfs; i++) { 1780 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1781 continue; 1782 1783 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1784 } 1785 1786 /* free up VF resources */ 1787 tmp = pf->num_alloc_vfs; 1788 pf->num_alloc_vfs = 0; 1789 for (i = 0; i < tmp; i++) { 1790 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1791 i40e_free_vf_res(&pf->vf[i]); 1792 /* disable qp mappings */ 1793 i40e_disable_vf_mappings(&pf->vf[i]); 1794 } 1795 1796 kfree(pf->vf); 1797 pf->vf = NULL; 1798 1799 /* This check is for when the driver is unloaded while VFs are 1800 * assigned. Setting the number of VFs to 0 through sysfs is caught 1801 * before this function ever gets called. 1802 */ 1803 if (!pci_vfs_assigned(pf->pdev)) { 1804 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1805 * work correctly when SR-IOV gets re-enabled. 1806 */ 1807 for (vf_id = 0; vf_id < tmp; vf_id++) { 1808 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1809 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1810 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1811 } 1812 } 1813 clear_bit(__I40E_VF_DISABLE, pf->state); 1814 clear_bit(__I40E_VFS_RELEASING, pf->state); 1815 } 1816 1817 #ifdef CONFIG_PCI_IOV 1818 /** 1819 * i40e_alloc_vfs 1820 * @pf: pointer to the PF structure 1821 * @num_alloc_vfs: number of VFs to allocate 1822 * 1823 * allocate VF resources 1824 **/ 1825 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1826 { 1827 struct i40e_vf *vfs; 1828 int i, ret = 0; 1829 1830 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1831 i40e_irq_dynamic_disable_icr0(pf); 1832 1833 /* Check to see if we're just allocating resources for extant VFs */ 1834 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1835 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1836 if (ret) { 1837 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1838 pf->num_alloc_vfs = 0; 1839 goto err_iov; 1840 } 1841 } 1842 /* allocate memory */ 1843 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1844 if (!vfs) { 1845 ret = -ENOMEM; 1846 goto err_alloc; 1847 } 1848 pf->vf = vfs; 1849 1850 /* apply default profile */ 1851 for (i = 0; i < num_alloc_vfs; i++) { 1852 vfs[i].pf = pf; 1853 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1854 vfs[i].vf_id = i; 1855 1856 /* assign default capabilities */ 1857 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1858 vfs[i].spoofchk = true; 1859 1860 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1861 1862 } 1863 pf->num_alloc_vfs = num_alloc_vfs; 1864 1865 /* VF resources get allocated during reset */ 1866 i40e_reset_all_vfs(pf, false); 1867 1868 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1869 1870 err_alloc: 1871 if (ret) 1872 i40e_free_vfs(pf); 1873 err_iov: 1874 /* Re-enable interrupt 0. */ 1875 i40e_irq_dynamic_enable_icr0(pf); 1876 return ret; 1877 } 1878 1879 #endif 1880 /** 1881 * i40e_pci_sriov_enable 1882 * @pdev: pointer to a pci_dev structure 1883 * @num_vfs: number of VFs to allocate 1884 * 1885 * Enable or change the number of VFs 1886 **/ 1887 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1888 { 1889 #ifdef CONFIG_PCI_IOV 1890 struct i40e_pf *pf = pci_get_drvdata(pdev); 1891 int pre_existing_vfs = pci_num_vf(pdev); 1892 int err = 0; 1893 1894 if (test_bit(__I40E_TESTING, pf->state)) { 1895 dev_warn(&pdev->dev, 1896 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1897 err = -EPERM; 1898 goto err_out; 1899 } 1900 1901 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1902 i40e_free_vfs(pf); 1903 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1904 goto out; 1905 1906 if (num_vfs > pf->num_req_vfs) { 1907 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1908 num_vfs, pf->num_req_vfs); 1909 err = -EPERM; 1910 goto err_out; 1911 } 1912 1913 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1914 err = i40e_alloc_vfs(pf, num_vfs); 1915 if (err) { 1916 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1917 goto err_out; 1918 } 1919 1920 out: 1921 return num_vfs; 1922 1923 err_out: 1924 return err; 1925 #endif 1926 return 0; 1927 } 1928 1929 /** 1930 * i40e_pci_sriov_configure 1931 * @pdev: pointer to a pci_dev structure 1932 * @num_vfs: number of VFs to allocate 1933 * 1934 * Enable or change the number of VFs. Called when the user updates the number 1935 * of VFs in sysfs. 1936 **/ 1937 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1938 { 1939 struct i40e_pf *pf = pci_get_drvdata(pdev); 1940 int ret = 0; 1941 1942 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1943 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1944 return -EAGAIN; 1945 } 1946 1947 if (num_vfs) { 1948 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1949 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1950 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1951 } 1952 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1953 goto sriov_configure_out; 1954 } 1955 1956 if (!pci_vfs_assigned(pf->pdev)) { 1957 i40e_free_vfs(pf); 1958 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1959 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1960 } else { 1961 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1962 ret = -EINVAL; 1963 goto sriov_configure_out; 1964 } 1965 sriov_configure_out: 1966 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1967 return ret; 1968 } 1969 1970 /***********************virtual channel routines******************/ 1971 1972 /** 1973 * i40e_vc_send_msg_to_vf 1974 * @vf: pointer to the VF info 1975 * @v_opcode: virtual channel opcode 1976 * @v_retval: virtual channel return value 1977 * @msg: pointer to the msg buffer 1978 * @msglen: msg length 1979 * 1980 * send msg to VF 1981 **/ 1982 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1983 u32 v_retval, u8 *msg, u16 msglen) 1984 { 1985 struct i40e_pf *pf; 1986 struct i40e_hw *hw; 1987 int abs_vf_id; 1988 int aq_ret; 1989 1990 /* validate the request */ 1991 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1992 return -EINVAL; 1993 1994 pf = vf->pf; 1995 hw = &pf->hw; 1996 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1997 1998 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1999 msg, msglen, NULL); 2000 if (aq_ret) { 2001 dev_info(&pf->pdev->dev, 2002 "Unable to send the message to VF %d aq_err %d\n", 2003 vf->vf_id, pf->hw.aq.asq_last_status); 2004 return -EIO; 2005 } 2006 2007 return 0; 2008 } 2009 2010 /** 2011 * i40e_vc_send_resp_to_vf 2012 * @vf: pointer to the VF info 2013 * @opcode: operation code 2014 * @retval: return value 2015 * 2016 * send resp msg to VF 2017 **/ 2018 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 2019 enum virtchnl_ops opcode, 2020 int retval) 2021 { 2022 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 2023 } 2024 2025 /** 2026 * i40e_sync_vf_state 2027 * @vf: pointer to the VF info 2028 * @state: VF state 2029 * 2030 * Called from a VF message to synchronize the service with a potential 2031 * VF reset state 2032 **/ 2033 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2034 { 2035 int i; 2036 2037 /* When handling some messages, it needs VF state to be set. 2038 * It is possible that this flag is cleared during VF reset, 2039 * so there is a need to wait until the end of the reset to 2040 * handle the request message correctly. 2041 */ 2042 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2043 if (test_bit(state, &vf->vf_states)) 2044 return true; 2045 usleep_range(10000, 20000); 2046 } 2047 2048 return test_bit(state, &vf->vf_states); 2049 } 2050 2051 /** 2052 * i40e_vc_get_version_msg 2053 * @vf: pointer to the VF info 2054 * @msg: pointer to the msg buffer 2055 * 2056 * called from the VF to request the API version used by the PF 2057 **/ 2058 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2059 { 2060 struct virtchnl_version_info info = { 2061 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2062 }; 2063 2064 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2065 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2066 if (VF_IS_V10(&vf->vf_ver)) 2067 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2068 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2069 0, (u8 *)&info, 2070 sizeof(struct virtchnl_version_info)); 2071 } 2072 2073 /** 2074 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2075 * @vf: pointer to VF structure 2076 **/ 2077 static void i40e_del_qch(struct i40e_vf *vf) 2078 { 2079 struct i40e_pf *pf = vf->pf; 2080 int i; 2081 2082 /* first element in the array belongs to primary VF VSI and we shouldn't 2083 * delete it. We should however delete the rest of the VSIs created 2084 */ 2085 for (i = 1; i < vf->num_tc; i++) { 2086 if (vf->ch[i].vsi_idx) { 2087 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2088 vf->ch[i].vsi_idx = 0; 2089 vf->ch[i].vsi_id = 0; 2090 } 2091 } 2092 } 2093 2094 /** 2095 * i40e_vc_get_max_frame_size 2096 * @vf: pointer to the VF 2097 * 2098 * Max frame size is determined based on the current port's max frame size and 2099 * whether a port VLAN is configured on this VF. The VF is not aware whether 2100 * it's in a port VLAN so the PF needs to account for this in max frame size 2101 * checks and sending the max frame size to the VF. 2102 **/ 2103 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf) 2104 { 2105 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size; 2106 2107 if (vf->port_vlan_id) 2108 max_frame_size -= VLAN_HLEN; 2109 2110 return max_frame_size; 2111 } 2112 2113 /** 2114 * i40e_vc_get_vf_resources_msg 2115 * @vf: pointer to the VF info 2116 * @msg: pointer to the msg buffer 2117 * 2118 * called from the VF to request its resources 2119 **/ 2120 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2121 { 2122 struct virtchnl_vf_resource *vfres = NULL; 2123 struct i40e_pf *pf = vf->pf; 2124 struct i40e_vsi *vsi; 2125 int num_vsis = 1; 2126 int aq_ret = 0; 2127 size_t len = 0; 2128 int ret; 2129 2130 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2131 aq_ret = -EINVAL; 2132 goto err; 2133 } 2134 2135 len = virtchnl_struct_size(vfres, vsi_res, num_vsis); 2136 vfres = kzalloc(len, GFP_KERNEL); 2137 if (!vfres) { 2138 aq_ret = -ENOMEM; 2139 len = 0; 2140 goto err; 2141 } 2142 if (VF_IS_V11(&vf->vf_ver)) 2143 vf->driver_caps = *(u32 *)msg; 2144 else 2145 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2146 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2147 VIRTCHNL_VF_OFFLOAD_VLAN; 2148 2149 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2150 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2151 vsi = pf->vsi[vf->lan_vsi_idx]; 2152 if (!vsi->info.pvid) 2153 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2154 2155 if (i40e_vf_client_capable(pf, vf->vf_id) && 2156 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) { 2157 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA; 2158 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2159 } else { 2160 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2161 } 2162 2163 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2164 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2165 } else { 2166 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2167 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2168 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2169 else 2170 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2171 } 2172 2173 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2174 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2175 vfres->vf_cap_flags |= 2176 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2177 } 2178 2179 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2180 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2181 2182 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2183 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2184 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2185 2186 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2187 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2188 dev_err(&pf->pdev->dev, 2189 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2190 vf->vf_id); 2191 aq_ret = -EINVAL; 2192 goto err; 2193 } 2194 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2195 } 2196 2197 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2198 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2199 vfres->vf_cap_flags |= 2200 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2201 } 2202 2203 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2204 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2205 2206 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2207 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2208 2209 vfres->num_vsis = num_vsis; 2210 vfres->num_queue_pairs = vf->num_queue_pairs; 2211 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2212 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2213 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2214 vfres->max_mtu = i40e_vc_get_max_frame_size(vf); 2215 2216 if (vf->lan_vsi_idx) { 2217 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2218 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2219 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2220 /* VFs only use TC 0 */ 2221 vfres->vsi_res[0].qset_handle 2222 = le16_to_cpu(vsi->info.qs_handle[0]); 2223 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2224 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2225 eth_zero_addr(vf->default_lan_addr.addr); 2226 } 2227 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2228 vf->default_lan_addr.addr); 2229 } 2230 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2231 2232 err: 2233 /* send the response back to the VF */ 2234 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2235 aq_ret, (u8 *)vfres, len); 2236 2237 kfree(vfres); 2238 return ret; 2239 } 2240 2241 /** 2242 * i40e_vc_config_promiscuous_mode_msg 2243 * @vf: pointer to the VF info 2244 * @msg: pointer to the msg buffer 2245 * 2246 * called from the VF to configure the promiscuous mode of 2247 * VF vsis 2248 **/ 2249 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2250 { 2251 struct virtchnl_promisc_info *info = 2252 (struct virtchnl_promisc_info *)msg; 2253 struct i40e_pf *pf = vf->pf; 2254 bool allmulti = false; 2255 bool alluni = false; 2256 int aq_ret = 0; 2257 2258 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2259 aq_ret = -EINVAL; 2260 goto err_out; 2261 } 2262 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2263 dev_err(&pf->pdev->dev, 2264 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2265 vf->vf_id); 2266 2267 /* Lie to the VF on purpose, because this is an error we can 2268 * ignore. Unprivileged VF is not a virtual channel error. 2269 */ 2270 aq_ret = 0; 2271 goto err_out; 2272 } 2273 2274 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2275 aq_ret = -EINVAL; 2276 goto err_out; 2277 } 2278 2279 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2280 aq_ret = -EINVAL; 2281 goto err_out; 2282 } 2283 2284 /* Multicast promiscuous handling*/ 2285 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2286 allmulti = true; 2287 2288 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2289 alluni = true; 2290 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2291 alluni); 2292 if (aq_ret) 2293 goto err_out; 2294 2295 if (allmulti) { 2296 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2297 &vf->vf_states)) 2298 dev_info(&pf->pdev->dev, 2299 "VF %d successfully set multicast promiscuous mode\n", 2300 vf->vf_id); 2301 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2302 &vf->vf_states)) 2303 dev_info(&pf->pdev->dev, 2304 "VF %d successfully unset multicast promiscuous mode\n", 2305 vf->vf_id); 2306 2307 if (alluni) { 2308 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2309 &vf->vf_states)) 2310 dev_info(&pf->pdev->dev, 2311 "VF %d successfully set unicast promiscuous mode\n", 2312 vf->vf_id); 2313 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2314 &vf->vf_states)) 2315 dev_info(&pf->pdev->dev, 2316 "VF %d successfully unset unicast promiscuous mode\n", 2317 vf->vf_id); 2318 2319 err_out: 2320 /* send the response to the VF */ 2321 return i40e_vc_send_resp_to_vf(vf, 2322 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2323 aq_ret); 2324 } 2325 2326 /** 2327 * i40e_vc_config_queues_msg 2328 * @vf: pointer to the VF info 2329 * @msg: pointer to the msg buffer 2330 * 2331 * called from the VF to configure the rx/tx 2332 * queues 2333 **/ 2334 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2335 { 2336 struct virtchnl_vsi_queue_config_info *qci = 2337 (struct virtchnl_vsi_queue_config_info *)msg; 2338 struct virtchnl_queue_pair_info *qpi; 2339 u16 vsi_id, vsi_queue_id = 0; 2340 struct i40e_pf *pf = vf->pf; 2341 int i, j = 0, idx = 0; 2342 struct i40e_vsi *vsi; 2343 u16 num_qps_all = 0; 2344 int aq_ret = 0; 2345 2346 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2347 aq_ret = -EINVAL; 2348 goto error_param; 2349 } 2350 2351 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2352 aq_ret = -EINVAL; 2353 goto error_param; 2354 } 2355 2356 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2357 aq_ret = -EINVAL; 2358 goto error_param; 2359 } 2360 2361 if (vf->adq_enabled) { 2362 for (i = 0; i < vf->num_tc; i++) 2363 num_qps_all += vf->ch[i].num_qps; 2364 if (num_qps_all != qci->num_queue_pairs) { 2365 aq_ret = -EINVAL; 2366 goto error_param; 2367 } 2368 } 2369 2370 vsi_id = qci->vsi_id; 2371 2372 for (i = 0; i < qci->num_queue_pairs; i++) { 2373 qpi = &qci->qpair[i]; 2374 2375 if (!vf->adq_enabled) { 2376 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2377 qpi->txq.queue_id)) { 2378 aq_ret = -EINVAL; 2379 goto error_param; 2380 } 2381 2382 vsi_queue_id = qpi->txq.queue_id; 2383 2384 if (qpi->txq.vsi_id != qci->vsi_id || 2385 qpi->rxq.vsi_id != qci->vsi_id || 2386 qpi->rxq.queue_id != vsi_queue_id) { 2387 aq_ret = -EINVAL; 2388 goto error_param; 2389 } 2390 } 2391 2392 if (vf->adq_enabled) { 2393 if (idx >= ARRAY_SIZE(vf->ch)) { 2394 aq_ret = -ENODEV; 2395 goto error_param; 2396 } 2397 vsi_id = vf->ch[idx].vsi_id; 2398 } 2399 2400 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2401 &qpi->rxq) || 2402 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2403 &qpi->txq)) { 2404 aq_ret = -EINVAL; 2405 goto error_param; 2406 } 2407 2408 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2409 * VF does not know about these additional VSIs and all 2410 * it cares is about its own queues. PF configures these queues 2411 * to its appropriate VSIs based on TC mapping 2412 */ 2413 if (vf->adq_enabled) { 2414 if (idx >= ARRAY_SIZE(vf->ch)) { 2415 aq_ret = -ENODEV; 2416 goto error_param; 2417 } 2418 if (j == (vf->ch[idx].num_qps - 1)) { 2419 idx++; 2420 j = 0; /* resetting the queue count */ 2421 vsi_queue_id = 0; 2422 } else { 2423 j++; 2424 vsi_queue_id++; 2425 } 2426 } 2427 } 2428 /* set vsi num_queue_pairs in use to num configured by VF */ 2429 if (!vf->adq_enabled) { 2430 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2431 qci->num_queue_pairs; 2432 } else { 2433 for (i = 0; i < vf->num_tc; i++) { 2434 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2435 vsi->num_queue_pairs = vf->ch[i].num_qps; 2436 2437 if (i40e_update_adq_vsi_queues(vsi, i)) { 2438 aq_ret = -EIO; 2439 goto error_param; 2440 } 2441 } 2442 } 2443 2444 error_param: 2445 /* send the response to the VF */ 2446 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2447 aq_ret); 2448 } 2449 2450 /** 2451 * i40e_validate_queue_map - check queue map is valid 2452 * @vf: the VF structure pointer 2453 * @vsi_id: vsi id 2454 * @queuemap: Tx or Rx queue map 2455 * 2456 * check if Tx or Rx queue map is valid 2457 **/ 2458 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2459 unsigned long queuemap) 2460 { 2461 u16 vsi_queue_id, queue_id; 2462 2463 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2464 if (vf->adq_enabled) { 2465 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2466 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2467 } else { 2468 queue_id = vsi_queue_id; 2469 } 2470 2471 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2472 return -EINVAL; 2473 } 2474 2475 return 0; 2476 } 2477 2478 /** 2479 * i40e_vc_config_irq_map_msg 2480 * @vf: pointer to the VF info 2481 * @msg: pointer to the msg buffer 2482 * 2483 * called from the VF to configure the irq to 2484 * queue map 2485 **/ 2486 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2487 { 2488 struct virtchnl_irq_map_info *irqmap_info = 2489 (struct virtchnl_irq_map_info *)msg; 2490 struct virtchnl_vector_map *map; 2491 int aq_ret = 0; 2492 u16 vsi_id; 2493 int i; 2494 2495 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2496 aq_ret = -EINVAL; 2497 goto error_param; 2498 } 2499 2500 if (irqmap_info->num_vectors > 2501 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2502 aq_ret = -EINVAL; 2503 goto error_param; 2504 } 2505 2506 for (i = 0; i < irqmap_info->num_vectors; i++) { 2507 map = &irqmap_info->vecmap[i]; 2508 /* validate msg params */ 2509 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2510 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2511 aq_ret = -EINVAL; 2512 goto error_param; 2513 } 2514 vsi_id = map->vsi_id; 2515 2516 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2517 aq_ret = -EINVAL; 2518 goto error_param; 2519 } 2520 2521 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2522 aq_ret = -EINVAL; 2523 goto error_param; 2524 } 2525 2526 i40e_config_irq_link_list(vf, vsi_id, map); 2527 } 2528 error_param: 2529 /* send the response to the VF */ 2530 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2531 aq_ret); 2532 } 2533 2534 /** 2535 * i40e_ctrl_vf_tx_rings 2536 * @vsi: the SRIOV VSI being configured 2537 * @q_map: bit map of the queues to be enabled 2538 * @enable: start or stop the queue 2539 **/ 2540 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2541 bool enable) 2542 { 2543 struct i40e_pf *pf = vsi->back; 2544 int ret = 0; 2545 u16 q_id; 2546 2547 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2548 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2549 vsi->base_queue + q_id, 2550 false /*is xdp*/, enable); 2551 if (ret) 2552 break; 2553 } 2554 return ret; 2555 } 2556 2557 /** 2558 * i40e_ctrl_vf_rx_rings 2559 * @vsi: the SRIOV VSI being configured 2560 * @q_map: bit map of the queues to be enabled 2561 * @enable: start or stop the queue 2562 **/ 2563 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2564 bool enable) 2565 { 2566 struct i40e_pf *pf = vsi->back; 2567 int ret = 0; 2568 u16 q_id; 2569 2570 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2571 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2572 enable); 2573 if (ret) 2574 break; 2575 } 2576 return ret; 2577 } 2578 2579 /** 2580 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2581 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2582 * 2583 * Returns true if validation was successful, else false. 2584 */ 2585 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2586 { 2587 if ((!vqs->rx_queues && !vqs->tx_queues) || 2588 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2589 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2590 return false; 2591 2592 return true; 2593 } 2594 2595 /** 2596 * i40e_vc_enable_queues_msg 2597 * @vf: pointer to the VF info 2598 * @msg: pointer to the msg buffer 2599 * 2600 * called from the VF to enable all or specific queue(s) 2601 **/ 2602 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2603 { 2604 struct virtchnl_queue_select *vqs = 2605 (struct virtchnl_queue_select *)msg; 2606 struct i40e_pf *pf = vf->pf; 2607 int aq_ret = 0; 2608 int i; 2609 2610 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2611 aq_ret = -EINVAL; 2612 goto error_param; 2613 } 2614 2615 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2616 aq_ret = -EINVAL; 2617 goto error_param; 2618 } 2619 2620 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2621 aq_ret = -EINVAL; 2622 goto error_param; 2623 } 2624 2625 /* Use the queue bit map sent by the VF */ 2626 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2627 true)) { 2628 aq_ret = -EIO; 2629 goto error_param; 2630 } 2631 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2632 true)) { 2633 aq_ret = -EIO; 2634 goto error_param; 2635 } 2636 2637 /* need to start the rings for additional ADq VSI's as well */ 2638 if (vf->adq_enabled) { 2639 /* zero belongs to LAN VSI */ 2640 for (i = 1; i < vf->num_tc; i++) { 2641 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2642 aq_ret = -EIO; 2643 } 2644 } 2645 2646 error_param: 2647 /* send the response to the VF */ 2648 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2649 aq_ret); 2650 } 2651 2652 /** 2653 * i40e_vc_disable_queues_msg 2654 * @vf: pointer to the VF info 2655 * @msg: pointer to the msg buffer 2656 * 2657 * called from the VF to disable all or specific 2658 * queue(s) 2659 **/ 2660 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2661 { 2662 struct virtchnl_queue_select *vqs = 2663 (struct virtchnl_queue_select *)msg; 2664 struct i40e_pf *pf = vf->pf; 2665 int aq_ret = 0; 2666 2667 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2668 aq_ret = -EINVAL; 2669 goto error_param; 2670 } 2671 2672 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2673 aq_ret = -EINVAL; 2674 goto error_param; 2675 } 2676 2677 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2678 aq_ret = -EINVAL; 2679 goto error_param; 2680 } 2681 2682 /* Use the queue bit map sent by the VF */ 2683 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2684 false)) { 2685 aq_ret = -EIO; 2686 goto error_param; 2687 } 2688 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2689 false)) { 2690 aq_ret = -EIO; 2691 goto error_param; 2692 } 2693 error_param: 2694 /* send the response to the VF */ 2695 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2696 aq_ret); 2697 } 2698 2699 /** 2700 * i40e_check_enough_queue - find big enough queue number 2701 * @vf: pointer to the VF info 2702 * @needed: the number of items needed 2703 * 2704 * Returns the base item index of the queue, or negative for error 2705 **/ 2706 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2707 { 2708 unsigned int i, cur_queues, more, pool_size; 2709 struct i40e_lump_tracking *pile; 2710 struct i40e_pf *pf = vf->pf; 2711 struct i40e_vsi *vsi; 2712 2713 vsi = pf->vsi[vf->lan_vsi_idx]; 2714 cur_queues = vsi->alloc_queue_pairs; 2715 2716 /* if current allocated queues are enough for need */ 2717 if (cur_queues >= needed) 2718 return vsi->base_queue; 2719 2720 pile = pf->qp_pile; 2721 if (cur_queues > 0) { 2722 /* if the allocated queues are not zero 2723 * just check if there are enough queues for more 2724 * behind the allocated queues. 2725 */ 2726 more = needed - cur_queues; 2727 for (i = vsi->base_queue + cur_queues; 2728 i < pile->num_entries; i++) { 2729 if (pile->list[i] & I40E_PILE_VALID_BIT) 2730 break; 2731 2732 if (more-- == 1) 2733 /* there is enough */ 2734 return vsi->base_queue; 2735 } 2736 } 2737 2738 pool_size = 0; 2739 for (i = 0; i < pile->num_entries; i++) { 2740 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2741 pool_size = 0; 2742 continue; 2743 } 2744 if (needed <= ++pool_size) 2745 /* there is enough */ 2746 return i; 2747 } 2748 2749 return -ENOMEM; 2750 } 2751 2752 /** 2753 * i40e_vc_request_queues_msg 2754 * @vf: pointer to the VF info 2755 * @msg: pointer to the msg buffer 2756 * 2757 * VFs get a default number of queues but can use this message to request a 2758 * different number. If the request is successful, PF will reset the VF and 2759 * return 0. If unsuccessful, PF will send message informing VF of number of 2760 * available queues and return result of sending VF a message. 2761 **/ 2762 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2763 { 2764 struct virtchnl_vf_res_request *vfres = 2765 (struct virtchnl_vf_res_request *)msg; 2766 u16 req_pairs = vfres->num_queue_pairs; 2767 u8 cur_pairs = vf->num_queue_pairs; 2768 struct i40e_pf *pf = vf->pf; 2769 2770 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2771 return -EINVAL; 2772 2773 if (req_pairs > I40E_MAX_VF_QUEUES) { 2774 dev_err(&pf->pdev->dev, 2775 "VF %d tried to request more than %d queues.\n", 2776 vf->vf_id, 2777 I40E_MAX_VF_QUEUES); 2778 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2779 } else if (req_pairs - cur_pairs > pf->queues_left) { 2780 dev_warn(&pf->pdev->dev, 2781 "VF %d requested %d more queues, but only %d left.\n", 2782 vf->vf_id, 2783 req_pairs - cur_pairs, 2784 pf->queues_left); 2785 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2786 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2787 dev_warn(&pf->pdev->dev, 2788 "VF %d requested %d more queues, but there is not enough for it.\n", 2789 vf->vf_id, 2790 req_pairs - cur_pairs); 2791 vfres->num_queue_pairs = cur_pairs; 2792 } else { 2793 /* successful request */ 2794 vf->num_req_queues = req_pairs; 2795 i40e_vc_reset_vf(vf, true); 2796 return 0; 2797 } 2798 2799 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2800 (u8 *)vfres, sizeof(*vfres)); 2801 } 2802 2803 /** 2804 * i40e_vc_get_stats_msg 2805 * @vf: pointer to the VF info 2806 * @msg: pointer to the msg buffer 2807 * 2808 * called from the VF to get vsi stats 2809 **/ 2810 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2811 { 2812 struct virtchnl_queue_select *vqs = 2813 (struct virtchnl_queue_select *)msg; 2814 struct i40e_pf *pf = vf->pf; 2815 struct i40e_eth_stats stats; 2816 int aq_ret = 0; 2817 struct i40e_vsi *vsi; 2818 2819 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2820 2821 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2822 aq_ret = -EINVAL; 2823 goto error_param; 2824 } 2825 2826 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2827 aq_ret = -EINVAL; 2828 goto error_param; 2829 } 2830 2831 vsi = pf->vsi[vf->lan_vsi_idx]; 2832 if (!vsi) { 2833 aq_ret = -EINVAL; 2834 goto error_param; 2835 } 2836 i40e_update_eth_stats(vsi); 2837 stats = vsi->eth_stats; 2838 2839 error_param: 2840 /* send the response back to the VF */ 2841 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2842 (u8 *)&stats, sizeof(stats)); 2843 } 2844 2845 #define I40E_MAX_MACVLAN_PER_HW 3072 2846 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2847 (num_ports)) 2848 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2849 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2850 */ 2851 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2852 #define I40E_VC_MAX_VLAN_PER_VF 16 2853 2854 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2855 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2856 typeof(num_ports) num_ports_ = (num_ports); \ 2857 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2858 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2859 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2860 /** 2861 * i40e_check_vf_permission 2862 * @vf: pointer to the VF info 2863 * @al: MAC address list from virtchnl 2864 * 2865 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2866 * if any address in the list is not valid. Checks the following conditions: 2867 * 2868 * 1) broadcast and zero addresses are never valid 2869 * 2) unicast addresses are not allowed if the VMM has administratively set 2870 * the VF MAC address, unless the VF is marked as privileged. 2871 * 3) There is enough space to add all the addresses. 2872 * 2873 * Note that to guarantee consistency, it is expected this function be called 2874 * while holding the mac_filter_hash_lock, as otherwise the current number of 2875 * addresses might not be accurate. 2876 **/ 2877 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2878 struct virtchnl_ether_addr_list *al) 2879 { 2880 struct i40e_pf *pf = vf->pf; 2881 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2882 struct i40e_hw *hw = &pf->hw; 2883 int mac2add_cnt = 0; 2884 int i; 2885 2886 for (i = 0; i < al->num_elements; i++) { 2887 struct i40e_mac_filter *f; 2888 u8 *addr = al->list[i].addr; 2889 2890 if (is_broadcast_ether_addr(addr) || 2891 is_zero_ether_addr(addr)) { 2892 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2893 addr); 2894 return -EINVAL; 2895 } 2896 2897 /* If the host VMM administrator has set the VF MAC address 2898 * administratively via the ndo_set_vf_mac command then deny 2899 * permission to the VF to add or delete unicast MAC addresses. 2900 * Unless the VF is privileged and then it can do whatever. 2901 * The VF may request to set the MAC address filter already 2902 * assigned to it so do not return an error in that case. 2903 */ 2904 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2905 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2906 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2907 dev_err(&pf->pdev->dev, 2908 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2909 return -EPERM; 2910 } 2911 2912 /*count filters that really will be added*/ 2913 f = i40e_find_mac(vsi, addr); 2914 if (!f) 2915 ++mac2add_cnt; 2916 } 2917 2918 /* If this VF is not privileged, then we can't add more than a limited 2919 * number of addresses. Check to make sure that the additions do not 2920 * push us over the limit. 2921 */ 2922 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2923 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2924 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2925 dev_err(&pf->pdev->dev, 2926 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2927 return -EPERM; 2928 } 2929 /* If this VF is trusted, it can use more resources than untrusted. 2930 * However to ensure that every trusted VF has appropriate number of 2931 * resources, divide whole pool of resources per port and then across 2932 * all VFs. 2933 */ 2934 } else { 2935 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2936 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2937 hw->num_ports)) { 2938 dev_err(&pf->pdev->dev, 2939 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2940 return -EPERM; 2941 } 2942 } 2943 return 0; 2944 } 2945 2946 /** 2947 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr 2948 * @vc_ether_addr: used to extract the type 2949 **/ 2950 static u8 2951 i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr) 2952 { 2953 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK; 2954 } 2955 2956 /** 2957 * i40e_is_vc_addr_legacy 2958 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2959 * 2960 * check if the MAC address is from an older VF 2961 **/ 2962 static bool 2963 i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr) 2964 { 2965 return i40e_vc_ether_addr_type(vc_ether_addr) == 2966 VIRTCHNL_ETHER_ADDR_LEGACY; 2967 } 2968 2969 /** 2970 * i40e_is_vc_addr_primary 2971 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2972 * 2973 * check if the MAC address is the VF's primary MAC 2974 * This function should only be called when the MAC address in 2975 * virtchnl_ether_addr is a valid unicast MAC 2976 **/ 2977 static bool 2978 i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr) 2979 { 2980 return i40e_vc_ether_addr_type(vc_ether_addr) == 2981 VIRTCHNL_ETHER_ADDR_PRIMARY; 2982 } 2983 2984 /** 2985 * i40e_update_vf_mac_addr 2986 * @vf: VF to update 2987 * @vc_ether_addr: structure from VIRTCHNL with MAC to add 2988 * 2989 * update the VF's cached hardware MAC if allowed 2990 **/ 2991 static void 2992 i40e_update_vf_mac_addr(struct i40e_vf *vf, 2993 struct virtchnl_ether_addr *vc_ether_addr) 2994 { 2995 u8 *mac_addr = vc_ether_addr->addr; 2996 2997 if (!is_valid_ether_addr(mac_addr)) 2998 return; 2999 3000 /* If request to add MAC filter is a primary request update its default 3001 * MAC address with the requested one. If it is a legacy request then 3002 * check if current default is empty if so update the default MAC 3003 */ 3004 if (i40e_is_vc_addr_primary(vc_ether_addr)) { 3005 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3006 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) { 3007 if (is_zero_ether_addr(vf->default_lan_addr.addr)) 3008 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3009 } 3010 } 3011 3012 /** 3013 * i40e_vc_add_mac_addr_msg 3014 * @vf: pointer to the VF info 3015 * @msg: pointer to the msg buffer 3016 * 3017 * add guest mac address filter 3018 **/ 3019 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3020 { 3021 struct virtchnl_ether_addr_list *al = 3022 (struct virtchnl_ether_addr_list *)msg; 3023 struct i40e_pf *pf = vf->pf; 3024 struct i40e_vsi *vsi = NULL; 3025 int ret = 0; 3026 int i; 3027 3028 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3029 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3030 ret = -EINVAL; 3031 goto error_param; 3032 } 3033 3034 vsi = pf->vsi[vf->lan_vsi_idx]; 3035 3036 /* Lock once, because all function inside for loop accesses VSI's 3037 * MAC filter list which needs to be protected using same lock. 3038 */ 3039 spin_lock_bh(&vsi->mac_filter_hash_lock); 3040 3041 ret = i40e_check_vf_permission(vf, al); 3042 if (ret) { 3043 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3044 goto error_param; 3045 } 3046 3047 /* add new addresses to the list */ 3048 for (i = 0; i < al->num_elements; i++) { 3049 struct i40e_mac_filter *f; 3050 3051 f = i40e_find_mac(vsi, al->list[i].addr); 3052 if (!f) { 3053 f = i40e_add_mac_filter(vsi, al->list[i].addr); 3054 3055 if (!f) { 3056 dev_err(&pf->pdev->dev, 3057 "Unable to add MAC filter %pM for VF %d\n", 3058 al->list[i].addr, vf->vf_id); 3059 ret = -EINVAL; 3060 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3061 goto error_param; 3062 } 3063 } 3064 i40e_update_vf_mac_addr(vf, &al->list[i]); 3065 } 3066 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3067 3068 /* program the updated filter list */ 3069 ret = i40e_sync_vsi_filters(vsi); 3070 if (ret) 3071 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3072 vf->vf_id, ret); 3073 3074 error_param: 3075 /* send the response to the VF */ 3076 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 3077 ret, NULL, 0); 3078 } 3079 3080 /** 3081 * i40e_vc_del_mac_addr_msg 3082 * @vf: pointer to the VF info 3083 * @msg: pointer to the msg buffer 3084 * 3085 * remove guest mac address filter 3086 **/ 3087 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3088 { 3089 struct virtchnl_ether_addr_list *al = 3090 (struct virtchnl_ether_addr_list *)msg; 3091 bool was_unimac_deleted = false; 3092 struct i40e_pf *pf = vf->pf; 3093 struct i40e_vsi *vsi = NULL; 3094 int ret = 0; 3095 int i; 3096 3097 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3098 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3099 ret = -EINVAL; 3100 goto error_param; 3101 } 3102 3103 for (i = 0; i < al->num_elements; i++) { 3104 if (is_broadcast_ether_addr(al->list[i].addr) || 3105 is_zero_ether_addr(al->list[i].addr)) { 3106 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3107 al->list[i].addr, vf->vf_id); 3108 ret = -EINVAL; 3109 goto error_param; 3110 } 3111 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 3112 was_unimac_deleted = true; 3113 } 3114 vsi = pf->vsi[vf->lan_vsi_idx]; 3115 3116 spin_lock_bh(&vsi->mac_filter_hash_lock); 3117 /* delete addresses from the list */ 3118 for (i = 0; i < al->num_elements; i++) 3119 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3120 ret = -EINVAL; 3121 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3122 goto error_param; 3123 } 3124 3125 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3126 3127 if (was_unimac_deleted) 3128 eth_zero_addr(vf->default_lan_addr.addr); 3129 3130 /* program the updated filter list */ 3131 ret = i40e_sync_vsi_filters(vsi); 3132 if (ret) 3133 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3134 vf->vf_id, ret); 3135 3136 if (vf->trusted && was_unimac_deleted) { 3137 struct i40e_mac_filter *f; 3138 struct hlist_node *h; 3139 u8 *macaddr = NULL; 3140 int bkt; 3141 3142 /* set last unicast mac address as default */ 3143 spin_lock_bh(&vsi->mac_filter_hash_lock); 3144 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3145 if (is_valid_ether_addr(f->macaddr)) 3146 macaddr = f->macaddr; 3147 } 3148 if (macaddr) 3149 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3150 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3151 } 3152 error_param: 3153 /* send the response to the VF */ 3154 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3155 } 3156 3157 /** 3158 * i40e_vc_add_vlan_msg 3159 * @vf: pointer to the VF info 3160 * @msg: pointer to the msg buffer 3161 * 3162 * program guest vlan id 3163 **/ 3164 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3165 { 3166 struct virtchnl_vlan_filter_list *vfl = 3167 (struct virtchnl_vlan_filter_list *)msg; 3168 struct i40e_pf *pf = vf->pf; 3169 struct i40e_vsi *vsi = NULL; 3170 int aq_ret = 0; 3171 int i; 3172 3173 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3174 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3175 dev_err(&pf->pdev->dev, 3176 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3177 goto error_param; 3178 } 3179 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3180 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3181 aq_ret = -EINVAL; 3182 goto error_param; 3183 } 3184 3185 for (i = 0; i < vfl->num_elements; i++) { 3186 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3187 aq_ret = -EINVAL; 3188 dev_err(&pf->pdev->dev, 3189 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3190 goto error_param; 3191 } 3192 } 3193 vsi = pf->vsi[vf->lan_vsi_idx]; 3194 if (vsi->info.pvid) { 3195 aq_ret = -EINVAL; 3196 goto error_param; 3197 } 3198 3199 i40e_vlan_stripping_enable(vsi); 3200 for (i = 0; i < vfl->num_elements; i++) { 3201 /* add new VLAN filter */ 3202 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3203 if (!ret) 3204 vf->num_vlan++; 3205 3206 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3207 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3208 true, 3209 vfl->vlan_id[i], 3210 NULL); 3211 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3212 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3213 true, 3214 vfl->vlan_id[i], 3215 NULL); 3216 3217 if (ret) 3218 dev_err(&pf->pdev->dev, 3219 "Unable to add VLAN filter %d for VF %d, error %d\n", 3220 vfl->vlan_id[i], vf->vf_id, ret); 3221 } 3222 3223 error_param: 3224 /* send the response to the VF */ 3225 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3226 } 3227 3228 /** 3229 * i40e_vc_remove_vlan_msg 3230 * @vf: pointer to the VF info 3231 * @msg: pointer to the msg buffer 3232 * 3233 * remove programmed guest vlan id 3234 **/ 3235 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3236 { 3237 struct virtchnl_vlan_filter_list *vfl = 3238 (struct virtchnl_vlan_filter_list *)msg; 3239 struct i40e_pf *pf = vf->pf; 3240 struct i40e_vsi *vsi = NULL; 3241 int aq_ret = 0; 3242 int i; 3243 3244 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3245 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3246 aq_ret = -EINVAL; 3247 goto error_param; 3248 } 3249 3250 for (i = 0; i < vfl->num_elements; i++) { 3251 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3252 aq_ret = -EINVAL; 3253 goto error_param; 3254 } 3255 } 3256 3257 vsi = pf->vsi[vf->lan_vsi_idx]; 3258 if (vsi->info.pvid) { 3259 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3260 aq_ret = -EINVAL; 3261 goto error_param; 3262 } 3263 3264 for (i = 0; i < vfl->num_elements; i++) { 3265 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3266 vf->num_vlan--; 3267 3268 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3269 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3270 false, 3271 vfl->vlan_id[i], 3272 NULL); 3273 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3274 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3275 false, 3276 vfl->vlan_id[i], 3277 NULL); 3278 } 3279 3280 error_param: 3281 /* send the response to the VF */ 3282 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3283 } 3284 3285 /** 3286 * i40e_vc_rdma_msg 3287 * @vf: pointer to the VF info 3288 * @msg: pointer to the msg buffer 3289 * @msglen: msg length 3290 * 3291 * called from the VF for the iwarp msgs 3292 **/ 3293 static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3294 { 3295 struct i40e_pf *pf = vf->pf; 3296 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3297 int aq_ret = 0; 3298 3299 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3300 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3301 aq_ret = -EINVAL; 3302 goto error_param; 3303 } 3304 3305 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3306 msg, msglen); 3307 3308 error_param: 3309 /* send the response to the VF */ 3310 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA, 3311 aq_ret); 3312 } 3313 3314 /** 3315 * i40e_vc_rdma_qvmap_msg 3316 * @vf: pointer to the VF info 3317 * @msg: pointer to the msg buffer 3318 * @config: config qvmap or release it 3319 * 3320 * called from the VF for the iwarp msgs 3321 **/ 3322 static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3323 { 3324 struct virtchnl_rdma_qvlist_info *qvlist_info = 3325 (struct virtchnl_rdma_qvlist_info *)msg; 3326 int aq_ret = 0; 3327 3328 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3329 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3330 aq_ret = -EINVAL; 3331 goto error_param; 3332 } 3333 3334 if (config) { 3335 if (i40e_config_rdma_qvlist(vf, qvlist_info)) 3336 aq_ret = -EINVAL; 3337 } else { 3338 i40e_release_rdma_qvlist(vf); 3339 } 3340 3341 error_param: 3342 /* send the response to the VF */ 3343 return i40e_vc_send_resp_to_vf(vf, 3344 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP : 3345 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP, 3346 aq_ret); 3347 } 3348 3349 /** 3350 * i40e_vc_config_rss_key 3351 * @vf: pointer to the VF info 3352 * @msg: pointer to the msg buffer 3353 * 3354 * Configure the VF's RSS key 3355 **/ 3356 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3357 { 3358 struct virtchnl_rss_key *vrk = 3359 (struct virtchnl_rss_key *)msg; 3360 struct i40e_pf *pf = vf->pf; 3361 struct i40e_vsi *vsi = NULL; 3362 int aq_ret = 0; 3363 3364 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3365 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3366 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3367 aq_ret = -EINVAL; 3368 goto err; 3369 } 3370 3371 vsi = pf->vsi[vf->lan_vsi_idx]; 3372 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3373 err: 3374 /* send the response to the VF */ 3375 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3376 aq_ret); 3377 } 3378 3379 /** 3380 * i40e_vc_config_rss_lut 3381 * @vf: pointer to the VF info 3382 * @msg: pointer to the msg buffer 3383 * 3384 * Configure the VF's RSS LUT 3385 **/ 3386 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3387 { 3388 struct virtchnl_rss_lut *vrl = 3389 (struct virtchnl_rss_lut *)msg; 3390 struct i40e_pf *pf = vf->pf; 3391 struct i40e_vsi *vsi = NULL; 3392 int aq_ret = 0; 3393 u16 i; 3394 3395 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3396 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3397 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3398 aq_ret = -EINVAL; 3399 goto err; 3400 } 3401 3402 for (i = 0; i < vrl->lut_entries; i++) 3403 if (vrl->lut[i] >= vf->num_queue_pairs) { 3404 aq_ret = -EINVAL; 3405 goto err; 3406 } 3407 3408 vsi = pf->vsi[vf->lan_vsi_idx]; 3409 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3410 /* send the response to the VF */ 3411 err: 3412 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3413 aq_ret); 3414 } 3415 3416 /** 3417 * i40e_vc_get_rss_hena 3418 * @vf: pointer to the VF info 3419 * @msg: pointer to the msg buffer 3420 * 3421 * Return the RSS HENA bits allowed by the hardware 3422 **/ 3423 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3424 { 3425 struct virtchnl_rss_hena *vrh = NULL; 3426 struct i40e_pf *pf = vf->pf; 3427 int aq_ret = 0; 3428 int len = 0; 3429 3430 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3431 aq_ret = -EINVAL; 3432 goto err; 3433 } 3434 len = sizeof(struct virtchnl_rss_hena); 3435 3436 vrh = kzalloc(len, GFP_KERNEL); 3437 if (!vrh) { 3438 aq_ret = -ENOMEM; 3439 len = 0; 3440 goto err; 3441 } 3442 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3443 err: 3444 /* send the response back to the VF */ 3445 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3446 aq_ret, (u8 *)vrh, len); 3447 kfree(vrh); 3448 return aq_ret; 3449 } 3450 3451 /** 3452 * i40e_vc_set_rss_hena 3453 * @vf: pointer to the VF info 3454 * @msg: pointer to the msg buffer 3455 * 3456 * Set the RSS HENA bits for the VF 3457 **/ 3458 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3459 { 3460 struct virtchnl_rss_hena *vrh = 3461 (struct virtchnl_rss_hena *)msg; 3462 struct i40e_pf *pf = vf->pf; 3463 struct i40e_hw *hw = &pf->hw; 3464 int aq_ret = 0; 3465 3466 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3467 aq_ret = -EINVAL; 3468 goto err; 3469 } 3470 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3471 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3472 (u32)(vrh->hena >> 32)); 3473 3474 /* send the response to the VF */ 3475 err: 3476 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3477 } 3478 3479 /** 3480 * i40e_vc_enable_vlan_stripping 3481 * @vf: pointer to the VF info 3482 * @msg: pointer to the msg buffer 3483 * 3484 * Enable vlan header stripping for the VF 3485 **/ 3486 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3487 { 3488 struct i40e_vsi *vsi; 3489 int aq_ret = 0; 3490 3491 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3492 aq_ret = -EINVAL; 3493 goto err; 3494 } 3495 3496 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3497 i40e_vlan_stripping_enable(vsi); 3498 3499 /* send the response to the VF */ 3500 err: 3501 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3502 aq_ret); 3503 } 3504 3505 /** 3506 * i40e_vc_disable_vlan_stripping 3507 * @vf: pointer to the VF info 3508 * @msg: pointer to the msg buffer 3509 * 3510 * Disable vlan header stripping for the VF 3511 **/ 3512 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3513 { 3514 struct i40e_vsi *vsi; 3515 int aq_ret = 0; 3516 3517 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3518 aq_ret = -EINVAL; 3519 goto err; 3520 } 3521 3522 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3523 i40e_vlan_stripping_disable(vsi); 3524 3525 /* send the response to the VF */ 3526 err: 3527 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3528 aq_ret); 3529 } 3530 3531 /** 3532 * i40e_validate_cloud_filter 3533 * @vf: pointer to VF structure 3534 * @tc_filter: pointer to filter requested 3535 * 3536 * This function validates cloud filter programmed as TC filter for ADq 3537 **/ 3538 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3539 struct virtchnl_filter *tc_filter) 3540 { 3541 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3542 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3543 struct i40e_pf *pf = vf->pf; 3544 struct i40e_vsi *vsi = NULL; 3545 struct i40e_mac_filter *f; 3546 struct hlist_node *h; 3547 bool found = false; 3548 int bkt; 3549 3550 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) { 3551 dev_info(&pf->pdev->dev, 3552 "VF %d: ADQ doesn't support this action (%d)\n", 3553 vf->vf_id, tc_filter->action); 3554 goto err; 3555 } 3556 3557 /* action_meta is TC number here to which the filter is applied */ 3558 if (!tc_filter->action_meta || 3559 tc_filter->action_meta > vf->num_tc) { 3560 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3561 vf->vf_id, tc_filter->action_meta); 3562 goto err; 3563 } 3564 3565 /* Check filter if it's programmed for advanced mode or basic mode. 3566 * There are two ADq modes (for VF only), 3567 * 1. Basic mode: intended to allow as many filter options as possible 3568 * to be added to a VF in Non-trusted mode. Main goal is 3569 * to add filters to its own MAC and VLAN id. 3570 * 2. Advanced mode: is for allowing filters to be applied other than 3571 * its own MAC or VLAN. This mode requires the VF to be 3572 * Trusted. 3573 */ 3574 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3575 vsi = pf->vsi[vf->lan_vsi_idx]; 3576 f = i40e_find_mac(vsi, data.dst_mac); 3577 3578 if (!f) { 3579 dev_info(&pf->pdev->dev, 3580 "Destination MAC %pM doesn't belong to VF %d\n", 3581 data.dst_mac, vf->vf_id); 3582 goto err; 3583 } 3584 3585 if (mask.vlan_id) { 3586 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3587 hlist) { 3588 if (f->vlan == ntohs(data.vlan_id)) { 3589 found = true; 3590 break; 3591 } 3592 } 3593 if (!found) { 3594 dev_info(&pf->pdev->dev, 3595 "VF %d doesn't have any VLAN id %u\n", 3596 vf->vf_id, ntohs(data.vlan_id)); 3597 goto err; 3598 } 3599 } 3600 } else { 3601 /* Check if VF is trusted */ 3602 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3603 dev_err(&pf->pdev->dev, 3604 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3605 vf->vf_id); 3606 return -EIO; 3607 } 3608 } 3609 3610 if (mask.dst_mac[0] & data.dst_mac[0]) { 3611 if (is_broadcast_ether_addr(data.dst_mac) || 3612 is_zero_ether_addr(data.dst_mac)) { 3613 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3614 vf->vf_id, data.dst_mac); 3615 goto err; 3616 } 3617 } 3618 3619 if (mask.src_mac[0] & data.src_mac[0]) { 3620 if (is_broadcast_ether_addr(data.src_mac) || 3621 is_zero_ether_addr(data.src_mac)) { 3622 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3623 vf->vf_id, data.src_mac); 3624 goto err; 3625 } 3626 } 3627 3628 if (mask.dst_port & data.dst_port) { 3629 if (!data.dst_port) { 3630 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3631 vf->vf_id); 3632 goto err; 3633 } 3634 } 3635 3636 if (mask.src_port & data.src_port) { 3637 if (!data.src_port) { 3638 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3639 vf->vf_id); 3640 goto err; 3641 } 3642 } 3643 3644 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3645 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3646 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3647 vf->vf_id); 3648 goto err; 3649 } 3650 3651 if (mask.vlan_id & data.vlan_id) { 3652 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3653 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3654 vf->vf_id); 3655 goto err; 3656 } 3657 } 3658 3659 return 0; 3660 err: 3661 return -EIO; 3662 } 3663 3664 /** 3665 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3666 * @vf: pointer to the VF info 3667 * @seid: seid of the vsi it is searching for 3668 **/ 3669 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3670 { 3671 struct i40e_pf *pf = vf->pf; 3672 struct i40e_vsi *vsi = NULL; 3673 int i; 3674 3675 for (i = 0; i < vf->num_tc ; i++) { 3676 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3677 if (vsi && vsi->seid == seid) 3678 return vsi; 3679 } 3680 return NULL; 3681 } 3682 3683 /** 3684 * i40e_del_all_cloud_filters 3685 * @vf: pointer to the VF info 3686 * 3687 * This function deletes all cloud filters 3688 **/ 3689 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3690 { 3691 struct i40e_cloud_filter *cfilter = NULL; 3692 struct i40e_pf *pf = vf->pf; 3693 struct i40e_vsi *vsi = NULL; 3694 struct hlist_node *node; 3695 int ret; 3696 3697 hlist_for_each_entry_safe(cfilter, node, 3698 &vf->cloud_filter_list, cloud_node) { 3699 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3700 3701 if (!vsi) { 3702 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3703 vf->vf_id, cfilter->seid); 3704 continue; 3705 } 3706 3707 if (cfilter->dst_port) 3708 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3709 false); 3710 else 3711 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3712 if (ret) 3713 dev_err(&pf->pdev->dev, 3714 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3715 vf->vf_id, ERR_PTR(ret), 3716 i40e_aq_str(&pf->hw, 3717 pf->hw.aq.asq_last_status)); 3718 3719 hlist_del(&cfilter->cloud_node); 3720 kfree(cfilter); 3721 vf->num_cloud_filters--; 3722 } 3723 } 3724 3725 /** 3726 * i40e_vc_del_cloud_filter 3727 * @vf: pointer to the VF info 3728 * @msg: pointer to the msg buffer 3729 * 3730 * This function deletes a cloud filter programmed as TC filter for ADq 3731 **/ 3732 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3733 { 3734 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3735 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3736 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3737 struct i40e_cloud_filter cfilter, *cf = NULL; 3738 struct i40e_pf *pf = vf->pf; 3739 struct i40e_vsi *vsi = NULL; 3740 struct hlist_node *node; 3741 int aq_ret = 0; 3742 int i, ret; 3743 3744 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3745 aq_ret = -EINVAL; 3746 goto err; 3747 } 3748 3749 if (!vf->adq_enabled) { 3750 dev_info(&pf->pdev->dev, 3751 "VF %d: ADq not enabled, can't apply cloud filter\n", 3752 vf->vf_id); 3753 aq_ret = -EINVAL; 3754 goto err; 3755 } 3756 3757 if (i40e_validate_cloud_filter(vf, vcf)) { 3758 dev_info(&pf->pdev->dev, 3759 "VF %d: Invalid input, can't apply cloud filter\n", 3760 vf->vf_id); 3761 aq_ret = -EINVAL; 3762 goto err; 3763 } 3764 3765 memset(&cfilter, 0, sizeof(cfilter)); 3766 /* parse destination mac address */ 3767 for (i = 0; i < ETH_ALEN; i++) 3768 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3769 3770 /* parse source mac address */ 3771 for (i = 0; i < ETH_ALEN; i++) 3772 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3773 3774 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3775 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3776 cfilter.src_port = mask.src_port & tcf.src_port; 3777 3778 switch (vcf->flow_type) { 3779 case VIRTCHNL_TCP_V4_FLOW: 3780 cfilter.n_proto = ETH_P_IP; 3781 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3782 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3783 ARRAY_SIZE(tcf.dst_ip)); 3784 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3785 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3786 ARRAY_SIZE(tcf.dst_ip)); 3787 break; 3788 case VIRTCHNL_TCP_V6_FLOW: 3789 cfilter.n_proto = ETH_P_IPV6; 3790 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3791 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3792 sizeof(cfilter.ip.v6.dst_ip6)); 3793 if (mask.src_ip[3] & tcf.src_ip[3]) 3794 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3795 sizeof(cfilter.ip.v6.src_ip6)); 3796 break; 3797 default: 3798 /* TC filter can be configured based on different combinations 3799 * and in this case IP is not a part of filter config 3800 */ 3801 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3802 vf->vf_id); 3803 } 3804 3805 /* get the vsi to which the tc belongs to */ 3806 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3807 cfilter.seid = vsi->seid; 3808 cfilter.flags = vcf->field_flags; 3809 3810 /* Deleting TC filter */ 3811 if (tcf.dst_port) 3812 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3813 else 3814 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3815 if (ret) { 3816 dev_err(&pf->pdev->dev, 3817 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3818 vf->vf_id, ERR_PTR(ret), 3819 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3820 goto err; 3821 } 3822 3823 hlist_for_each_entry_safe(cf, node, 3824 &vf->cloud_filter_list, cloud_node) { 3825 if (cf->seid != cfilter.seid) 3826 continue; 3827 if (mask.dst_port) 3828 if (cfilter.dst_port != cf->dst_port) 3829 continue; 3830 if (mask.dst_mac[0]) 3831 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3832 continue; 3833 /* for ipv4 data to be valid, only first byte of mask is set */ 3834 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3835 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3836 ARRAY_SIZE(tcf.dst_ip))) 3837 continue; 3838 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3839 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3840 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3841 sizeof(cfilter.ip.v6.src_ip6))) 3842 continue; 3843 if (mask.vlan_id) 3844 if (cfilter.vlan_id != cf->vlan_id) 3845 continue; 3846 3847 hlist_del(&cf->cloud_node); 3848 kfree(cf); 3849 vf->num_cloud_filters--; 3850 } 3851 3852 err: 3853 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3854 aq_ret); 3855 } 3856 3857 /** 3858 * i40e_vc_add_cloud_filter 3859 * @vf: pointer to the VF info 3860 * @msg: pointer to the msg buffer 3861 * 3862 * This function adds a cloud filter programmed as TC filter for ADq 3863 **/ 3864 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3865 { 3866 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3867 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3868 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3869 struct i40e_cloud_filter *cfilter = NULL; 3870 struct i40e_pf *pf = vf->pf; 3871 struct i40e_vsi *vsi = NULL; 3872 int aq_ret = 0; 3873 int i; 3874 3875 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3876 aq_ret = -EINVAL; 3877 goto err_out; 3878 } 3879 3880 if (!vf->adq_enabled) { 3881 dev_info(&pf->pdev->dev, 3882 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3883 vf->vf_id); 3884 aq_ret = -EINVAL; 3885 goto err_out; 3886 } 3887 3888 if (i40e_validate_cloud_filter(vf, vcf)) { 3889 dev_info(&pf->pdev->dev, 3890 "VF %d: Invalid input/s, can't apply cloud filter\n", 3891 vf->vf_id); 3892 aq_ret = -EINVAL; 3893 goto err_out; 3894 } 3895 3896 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3897 if (!cfilter) { 3898 aq_ret = -ENOMEM; 3899 goto err_out; 3900 } 3901 3902 /* parse destination mac address */ 3903 for (i = 0; i < ETH_ALEN; i++) 3904 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3905 3906 /* parse source mac address */ 3907 for (i = 0; i < ETH_ALEN; i++) 3908 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3909 3910 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3911 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3912 cfilter->src_port = mask.src_port & tcf.src_port; 3913 3914 switch (vcf->flow_type) { 3915 case VIRTCHNL_TCP_V4_FLOW: 3916 cfilter->n_proto = ETH_P_IP; 3917 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3918 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3919 ARRAY_SIZE(tcf.dst_ip)); 3920 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3921 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3922 ARRAY_SIZE(tcf.dst_ip)); 3923 break; 3924 case VIRTCHNL_TCP_V6_FLOW: 3925 cfilter->n_proto = ETH_P_IPV6; 3926 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3927 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3928 sizeof(cfilter->ip.v6.dst_ip6)); 3929 if (mask.src_ip[3] & tcf.src_ip[3]) 3930 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3931 sizeof(cfilter->ip.v6.src_ip6)); 3932 break; 3933 default: 3934 /* TC filter can be configured based on different combinations 3935 * and in this case IP is not a part of filter config 3936 */ 3937 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3938 vf->vf_id); 3939 } 3940 3941 /* get the VSI to which the TC belongs to */ 3942 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3943 cfilter->seid = vsi->seid; 3944 cfilter->flags = vcf->field_flags; 3945 3946 /* Adding cloud filter programmed as TC filter */ 3947 if (tcf.dst_port) 3948 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3949 else 3950 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3951 if (aq_ret) { 3952 dev_err(&pf->pdev->dev, 3953 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n", 3954 vf->vf_id, ERR_PTR(aq_ret), 3955 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3956 goto err_free; 3957 } 3958 3959 INIT_HLIST_NODE(&cfilter->cloud_node); 3960 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3961 /* release the pointer passing it to the collection */ 3962 cfilter = NULL; 3963 vf->num_cloud_filters++; 3964 err_free: 3965 kfree(cfilter); 3966 err_out: 3967 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3968 aq_ret); 3969 } 3970 3971 /** 3972 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3973 * @vf: pointer to the VF info 3974 * @msg: pointer to the msg buffer 3975 **/ 3976 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3977 { 3978 struct virtchnl_tc_info *tci = 3979 (struct virtchnl_tc_info *)msg; 3980 struct i40e_pf *pf = vf->pf; 3981 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3982 int i, adq_request_qps = 0; 3983 int aq_ret = 0; 3984 u64 speed = 0; 3985 3986 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3987 aq_ret = -EINVAL; 3988 goto err; 3989 } 3990 3991 /* ADq cannot be applied if spoof check is ON */ 3992 if (vf->spoofchk) { 3993 dev_err(&pf->pdev->dev, 3994 "Spoof check is ON, turn it OFF to enable ADq\n"); 3995 aq_ret = -EINVAL; 3996 goto err; 3997 } 3998 3999 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 4000 dev_err(&pf->pdev->dev, 4001 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 4002 vf->vf_id); 4003 aq_ret = -EINVAL; 4004 goto err; 4005 } 4006 4007 /* max number of traffic classes for VF currently capped at 4 */ 4008 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 4009 dev_err(&pf->pdev->dev, 4010 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 4011 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 4012 aq_ret = -EINVAL; 4013 goto err; 4014 } 4015 4016 /* validate queues for each TC */ 4017 for (i = 0; i < tci->num_tc; i++) 4018 if (!tci->list[i].count || 4019 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 4020 dev_err(&pf->pdev->dev, 4021 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 4022 vf->vf_id, i, tci->list[i].count, 4023 I40E_DEFAULT_QUEUES_PER_VF); 4024 aq_ret = -EINVAL; 4025 goto err; 4026 } 4027 4028 /* need Max VF queues but already have default number of queues */ 4029 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 4030 4031 if (pf->queues_left < adq_request_qps) { 4032 dev_err(&pf->pdev->dev, 4033 "No queues left to allocate to VF %d\n", 4034 vf->vf_id); 4035 aq_ret = -EINVAL; 4036 goto err; 4037 } else { 4038 /* we need to allocate max VF queues to enable ADq so as to 4039 * make sure ADq enabled VF always gets back queues when it 4040 * goes through a reset. 4041 */ 4042 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 4043 } 4044 4045 /* get link speed in MB to validate rate limit */ 4046 speed = i40e_vc_link_speed2mbps(ls->link_speed); 4047 if (speed == SPEED_UNKNOWN) { 4048 dev_err(&pf->pdev->dev, 4049 "Cannot detect link speed\n"); 4050 aq_ret = -EINVAL; 4051 goto err; 4052 } 4053 4054 /* parse data from the queue channel info */ 4055 vf->num_tc = tci->num_tc; 4056 for (i = 0; i < vf->num_tc; i++) { 4057 if (tci->list[i].max_tx_rate) { 4058 if (tci->list[i].max_tx_rate > speed) { 4059 dev_err(&pf->pdev->dev, 4060 "Invalid max tx rate %llu specified for VF %d.", 4061 tci->list[i].max_tx_rate, 4062 vf->vf_id); 4063 aq_ret = -EINVAL; 4064 goto err; 4065 } else { 4066 vf->ch[i].max_tx_rate = 4067 tci->list[i].max_tx_rate; 4068 } 4069 } 4070 vf->ch[i].num_qps = tci->list[i].count; 4071 } 4072 4073 /* set this flag only after making sure all inputs are sane */ 4074 vf->adq_enabled = true; 4075 4076 /* reset the VF in order to allocate resources */ 4077 i40e_vc_reset_vf(vf, true); 4078 4079 return 0; 4080 4081 /* send the response to the VF */ 4082 err: 4083 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 4084 aq_ret); 4085 } 4086 4087 /** 4088 * i40e_vc_del_qch_msg 4089 * @vf: pointer to the VF info 4090 * @msg: pointer to the msg buffer 4091 **/ 4092 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 4093 { 4094 struct i40e_pf *pf = vf->pf; 4095 int aq_ret = 0; 4096 4097 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4098 aq_ret = -EINVAL; 4099 goto err; 4100 } 4101 4102 if (vf->adq_enabled) { 4103 i40e_del_all_cloud_filters(vf); 4104 i40e_del_qch(vf); 4105 vf->adq_enabled = false; 4106 vf->num_tc = 0; 4107 dev_info(&pf->pdev->dev, 4108 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4109 vf->vf_id); 4110 } else { 4111 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4112 vf->vf_id); 4113 aq_ret = -EINVAL; 4114 } 4115 4116 /* reset the VF in order to allocate resources */ 4117 i40e_vc_reset_vf(vf, true); 4118 4119 return 0; 4120 4121 err: 4122 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4123 aq_ret); 4124 } 4125 4126 /** 4127 * i40e_vc_process_vf_msg 4128 * @pf: pointer to the PF structure 4129 * @vf_id: source VF id 4130 * @v_opcode: operation code 4131 * @v_retval: unused return value code 4132 * @msg: pointer to the msg buffer 4133 * @msglen: msg length 4134 * 4135 * called from the common aeq/arq handler to 4136 * process request from VF 4137 **/ 4138 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4139 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4140 { 4141 struct i40e_hw *hw = &pf->hw; 4142 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4143 struct i40e_vf *vf; 4144 int ret; 4145 4146 pf->vf_aq_requests++; 4147 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4148 return -EINVAL; 4149 vf = &(pf->vf[local_vf_id]); 4150 4151 /* Check if VF is disabled. */ 4152 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4153 return -EINVAL; 4154 4155 /* perform basic checks on the msg */ 4156 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4157 4158 if (ret) { 4159 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL); 4160 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4161 local_vf_id, v_opcode, msglen); 4162 return ret; 4163 } 4164 4165 switch (v_opcode) { 4166 case VIRTCHNL_OP_VERSION: 4167 ret = i40e_vc_get_version_msg(vf, msg); 4168 break; 4169 case VIRTCHNL_OP_GET_VF_RESOURCES: 4170 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4171 i40e_vc_notify_vf_link_state(vf); 4172 break; 4173 case VIRTCHNL_OP_RESET_VF: 4174 i40e_vc_reset_vf(vf, false); 4175 ret = 0; 4176 break; 4177 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4178 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4179 break; 4180 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4181 ret = i40e_vc_config_queues_msg(vf, msg); 4182 break; 4183 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4184 ret = i40e_vc_config_irq_map_msg(vf, msg); 4185 break; 4186 case VIRTCHNL_OP_ENABLE_QUEUES: 4187 ret = i40e_vc_enable_queues_msg(vf, msg); 4188 i40e_vc_notify_vf_link_state(vf); 4189 break; 4190 case VIRTCHNL_OP_DISABLE_QUEUES: 4191 ret = i40e_vc_disable_queues_msg(vf, msg); 4192 break; 4193 case VIRTCHNL_OP_ADD_ETH_ADDR: 4194 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4195 break; 4196 case VIRTCHNL_OP_DEL_ETH_ADDR: 4197 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4198 break; 4199 case VIRTCHNL_OP_ADD_VLAN: 4200 ret = i40e_vc_add_vlan_msg(vf, msg); 4201 break; 4202 case VIRTCHNL_OP_DEL_VLAN: 4203 ret = i40e_vc_remove_vlan_msg(vf, msg); 4204 break; 4205 case VIRTCHNL_OP_GET_STATS: 4206 ret = i40e_vc_get_stats_msg(vf, msg); 4207 break; 4208 case VIRTCHNL_OP_RDMA: 4209 ret = i40e_vc_rdma_msg(vf, msg, msglen); 4210 break; 4211 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP: 4212 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true); 4213 break; 4214 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP: 4215 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false); 4216 break; 4217 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4218 ret = i40e_vc_config_rss_key(vf, msg); 4219 break; 4220 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4221 ret = i40e_vc_config_rss_lut(vf, msg); 4222 break; 4223 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4224 ret = i40e_vc_get_rss_hena(vf, msg); 4225 break; 4226 case VIRTCHNL_OP_SET_RSS_HENA: 4227 ret = i40e_vc_set_rss_hena(vf, msg); 4228 break; 4229 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4230 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4231 break; 4232 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4233 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4234 break; 4235 case VIRTCHNL_OP_REQUEST_QUEUES: 4236 ret = i40e_vc_request_queues_msg(vf, msg); 4237 break; 4238 case VIRTCHNL_OP_ENABLE_CHANNELS: 4239 ret = i40e_vc_add_qch_msg(vf, msg); 4240 break; 4241 case VIRTCHNL_OP_DISABLE_CHANNELS: 4242 ret = i40e_vc_del_qch_msg(vf, msg); 4243 break; 4244 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4245 ret = i40e_vc_add_cloud_filter(vf, msg); 4246 break; 4247 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4248 ret = i40e_vc_del_cloud_filter(vf, msg); 4249 break; 4250 case VIRTCHNL_OP_UNKNOWN: 4251 default: 4252 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4253 v_opcode, local_vf_id); 4254 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4255 -EOPNOTSUPP); 4256 break; 4257 } 4258 4259 return ret; 4260 } 4261 4262 /** 4263 * i40e_vc_process_vflr_event 4264 * @pf: pointer to the PF structure 4265 * 4266 * called from the vlfr irq handler to 4267 * free up VF resources and state variables 4268 **/ 4269 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4270 { 4271 struct i40e_hw *hw = &pf->hw; 4272 u32 reg, reg_idx, bit_idx; 4273 struct i40e_vf *vf; 4274 int vf_id; 4275 4276 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4277 return 0; 4278 4279 /* Re-enable the VFLR interrupt cause here, before looking for which 4280 * VF got reset. Otherwise, if another VF gets a reset while the 4281 * first one is being processed, that interrupt will be lost, and 4282 * that VF will be stuck in reset forever. 4283 */ 4284 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4285 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4286 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4287 i40e_flush(hw); 4288 4289 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4290 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4291 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4292 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4293 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4294 vf = &pf->vf[vf_id]; 4295 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4296 if (reg & BIT(bit_idx)) 4297 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4298 i40e_reset_vf(vf, true); 4299 } 4300 4301 return 0; 4302 } 4303 4304 /** 4305 * i40e_validate_vf 4306 * @pf: the physical function 4307 * @vf_id: VF identifier 4308 * 4309 * Check that the VF is enabled and the VSI exists. 4310 * 4311 * Returns 0 on success, negative on failure 4312 **/ 4313 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4314 { 4315 struct i40e_vsi *vsi; 4316 struct i40e_vf *vf; 4317 int ret = 0; 4318 4319 if (vf_id >= pf->num_alloc_vfs) { 4320 dev_err(&pf->pdev->dev, 4321 "Invalid VF Identifier %d\n", vf_id); 4322 ret = -EINVAL; 4323 goto err_out; 4324 } 4325 vf = &pf->vf[vf_id]; 4326 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4327 if (!vsi) 4328 ret = -EINVAL; 4329 err_out: 4330 return ret; 4331 } 4332 4333 /** 4334 * i40e_check_vf_init_timeout 4335 * @vf: the virtual function 4336 * 4337 * Check that the VF's initialization was successfully done and if not 4338 * wait up to 300ms for its finish. 4339 * 4340 * Returns true when VF is initialized, false on timeout 4341 **/ 4342 static bool i40e_check_vf_init_timeout(struct i40e_vf *vf) 4343 { 4344 int i; 4345 4346 /* When the VF is resetting wait until it is done. 4347 * It can take up to 200 milliseconds, but wait for 4348 * up to 300 milliseconds to be safe. 4349 */ 4350 for (i = 0; i < 15; i++) { 4351 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4352 return true; 4353 msleep(20); 4354 } 4355 4356 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4357 dev_err(&vf->pf->pdev->dev, 4358 "VF %d still in reset. Try again.\n", vf->vf_id); 4359 return false; 4360 } 4361 4362 return true; 4363 } 4364 4365 /** 4366 * i40e_ndo_set_vf_mac 4367 * @netdev: network interface device structure 4368 * @vf_id: VF identifier 4369 * @mac: mac address 4370 * 4371 * program VF mac address 4372 **/ 4373 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4374 { 4375 struct i40e_netdev_priv *np = netdev_priv(netdev); 4376 struct i40e_vsi *vsi = np->vsi; 4377 struct i40e_pf *pf = vsi->back; 4378 struct i40e_mac_filter *f; 4379 struct i40e_vf *vf; 4380 int ret = 0; 4381 struct hlist_node *h; 4382 int bkt; 4383 4384 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4385 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4386 return -EAGAIN; 4387 } 4388 4389 /* validate the request */ 4390 ret = i40e_validate_vf(pf, vf_id); 4391 if (ret) 4392 goto error_param; 4393 4394 vf = &pf->vf[vf_id]; 4395 if (!i40e_check_vf_init_timeout(vf)) { 4396 ret = -EAGAIN; 4397 goto error_param; 4398 } 4399 vsi = pf->vsi[vf->lan_vsi_idx]; 4400 4401 if (is_multicast_ether_addr(mac)) { 4402 dev_err(&pf->pdev->dev, 4403 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4404 ret = -EINVAL; 4405 goto error_param; 4406 } 4407 4408 /* Lock once because below invoked function add/del_filter requires 4409 * mac_filter_hash_lock to be held 4410 */ 4411 spin_lock_bh(&vsi->mac_filter_hash_lock); 4412 4413 /* delete the temporary mac address */ 4414 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4415 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4416 4417 /* Delete all the filters for this VSI - we're going to kill it 4418 * anyway. 4419 */ 4420 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4421 __i40e_del_filter(vsi, f); 4422 4423 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4424 4425 /* program mac filter */ 4426 if (i40e_sync_vsi_filters(vsi)) { 4427 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4428 ret = -EIO; 4429 goto error_param; 4430 } 4431 ether_addr_copy(vf->default_lan_addr.addr, mac); 4432 4433 if (is_zero_ether_addr(mac)) { 4434 vf->pf_set_mac = false; 4435 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4436 } else { 4437 vf->pf_set_mac = true; 4438 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4439 mac, vf_id); 4440 } 4441 4442 /* Force the VF interface down so it has to bring up with new MAC 4443 * address 4444 */ 4445 i40e_vc_reset_vf(vf, true); 4446 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4447 4448 error_param: 4449 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4450 return ret; 4451 } 4452 4453 /** 4454 * i40e_ndo_set_vf_port_vlan 4455 * @netdev: network interface device structure 4456 * @vf_id: VF identifier 4457 * @vlan_id: mac address 4458 * @qos: priority setting 4459 * @vlan_proto: vlan protocol 4460 * 4461 * program VF vlan id and/or qos 4462 **/ 4463 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4464 u16 vlan_id, u8 qos, __be16 vlan_proto) 4465 { 4466 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4467 struct i40e_netdev_priv *np = netdev_priv(netdev); 4468 bool allmulti = false, alluni = false; 4469 struct i40e_pf *pf = np->vsi->back; 4470 struct i40e_vsi *vsi; 4471 struct i40e_vf *vf; 4472 int ret = 0; 4473 4474 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4475 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4476 return -EAGAIN; 4477 } 4478 4479 /* validate the request */ 4480 ret = i40e_validate_vf(pf, vf_id); 4481 if (ret) 4482 goto error_pvid; 4483 4484 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4485 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4486 ret = -EINVAL; 4487 goto error_pvid; 4488 } 4489 4490 if (vlan_proto != htons(ETH_P_8021Q)) { 4491 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4492 ret = -EPROTONOSUPPORT; 4493 goto error_pvid; 4494 } 4495 4496 vf = &pf->vf[vf_id]; 4497 if (!i40e_check_vf_init_timeout(vf)) { 4498 ret = -EAGAIN; 4499 goto error_pvid; 4500 } 4501 vsi = pf->vsi[vf->lan_vsi_idx]; 4502 4503 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4504 /* duplicate request, so just return success */ 4505 goto error_pvid; 4506 4507 i40e_vlan_stripping_enable(vsi); 4508 4509 /* Locked once because multiple functions below iterate list */ 4510 spin_lock_bh(&vsi->mac_filter_hash_lock); 4511 4512 /* Check for condition where there was already a port VLAN ID 4513 * filter set and now it is being deleted by setting it to zero. 4514 * Additionally check for the condition where there was a port 4515 * VLAN but now there is a new and different port VLAN being set. 4516 * Before deleting all the old VLAN filters we must add new ones 4517 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4518 * MAC addresses deleted. 4519 */ 4520 if ((!(vlan_id || qos) || 4521 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4522 vsi->info.pvid) { 4523 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4524 if (ret) { 4525 dev_info(&vsi->back->pdev->dev, 4526 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4527 vsi->back->hw.aq.asq_last_status); 4528 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4529 goto error_pvid; 4530 } 4531 } 4532 4533 if (vsi->info.pvid) { 4534 /* remove all filters on the old VLAN */ 4535 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4536 VLAN_VID_MASK)); 4537 } 4538 4539 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4540 4541 /* disable promisc modes in case they were enabled */ 4542 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4543 allmulti, alluni); 4544 if (ret) { 4545 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4546 goto error_pvid; 4547 } 4548 4549 if (vlan_id || qos) 4550 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4551 else 4552 i40e_vsi_remove_pvid(vsi); 4553 spin_lock_bh(&vsi->mac_filter_hash_lock); 4554 4555 if (vlan_id) { 4556 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4557 vlan_id, qos, vf_id); 4558 4559 /* add new VLAN filter for each MAC */ 4560 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4561 if (ret) { 4562 dev_info(&vsi->back->pdev->dev, 4563 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4564 vsi->back->hw.aq.asq_last_status); 4565 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4566 goto error_pvid; 4567 } 4568 4569 /* remove the previously added non-VLAN MAC filters */ 4570 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4571 } 4572 4573 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4574 4575 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4576 alluni = true; 4577 4578 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4579 allmulti = true; 4580 4581 /* Schedule the worker thread to take care of applying changes */ 4582 i40e_service_event_schedule(vsi->back); 4583 4584 if (ret) { 4585 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4586 goto error_pvid; 4587 } 4588 4589 /* The Port VLAN needs to be saved across resets the same as the 4590 * default LAN MAC address. 4591 */ 4592 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4593 4594 i40e_vc_reset_vf(vf, true); 4595 /* During reset the VF got a new VSI, so refresh a pointer. */ 4596 vsi = pf->vsi[vf->lan_vsi_idx]; 4597 4598 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4599 if (ret) { 4600 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4601 goto error_pvid; 4602 } 4603 4604 ret = 0; 4605 4606 error_pvid: 4607 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4608 return ret; 4609 } 4610 4611 /** 4612 * i40e_ndo_set_vf_bw 4613 * @netdev: network interface device structure 4614 * @vf_id: VF identifier 4615 * @min_tx_rate: Minimum Tx rate 4616 * @max_tx_rate: Maximum Tx rate 4617 * 4618 * configure VF Tx rate 4619 **/ 4620 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4621 int max_tx_rate) 4622 { 4623 struct i40e_netdev_priv *np = netdev_priv(netdev); 4624 struct i40e_pf *pf = np->vsi->back; 4625 struct i40e_vsi *vsi; 4626 struct i40e_vf *vf; 4627 int ret = 0; 4628 4629 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4630 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4631 return -EAGAIN; 4632 } 4633 4634 /* validate the request */ 4635 ret = i40e_validate_vf(pf, vf_id); 4636 if (ret) 4637 goto error; 4638 4639 if (min_tx_rate) { 4640 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4641 min_tx_rate, vf_id); 4642 ret = -EINVAL; 4643 goto error; 4644 } 4645 4646 vf = &pf->vf[vf_id]; 4647 if (!i40e_check_vf_init_timeout(vf)) { 4648 ret = -EAGAIN; 4649 goto error; 4650 } 4651 vsi = pf->vsi[vf->lan_vsi_idx]; 4652 4653 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4654 if (ret) 4655 goto error; 4656 4657 vf->tx_rate = max_tx_rate; 4658 error: 4659 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4660 return ret; 4661 } 4662 4663 /** 4664 * i40e_ndo_get_vf_config 4665 * @netdev: network interface device structure 4666 * @vf_id: VF identifier 4667 * @ivi: VF configuration structure 4668 * 4669 * return VF configuration 4670 **/ 4671 int i40e_ndo_get_vf_config(struct net_device *netdev, 4672 int vf_id, struct ifla_vf_info *ivi) 4673 { 4674 struct i40e_netdev_priv *np = netdev_priv(netdev); 4675 struct i40e_vsi *vsi = np->vsi; 4676 struct i40e_pf *pf = vsi->back; 4677 struct i40e_vf *vf; 4678 int ret = 0; 4679 4680 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4681 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4682 return -EAGAIN; 4683 } 4684 4685 /* validate the request */ 4686 ret = i40e_validate_vf(pf, vf_id); 4687 if (ret) 4688 goto error_param; 4689 4690 vf = &pf->vf[vf_id]; 4691 /* first vsi is always the LAN vsi */ 4692 vsi = pf->vsi[vf->lan_vsi_idx]; 4693 if (!vsi) { 4694 ret = -ENOENT; 4695 goto error_param; 4696 } 4697 4698 ivi->vf = vf_id; 4699 4700 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4701 4702 ivi->max_tx_rate = vf->tx_rate; 4703 ivi->min_tx_rate = 0; 4704 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4705 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4706 I40E_VLAN_PRIORITY_SHIFT; 4707 if (vf->link_forced == false) 4708 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4709 else if (vf->link_up == true) 4710 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4711 else 4712 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4713 ivi->spoofchk = vf->spoofchk; 4714 ivi->trusted = vf->trusted; 4715 ret = 0; 4716 4717 error_param: 4718 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4719 return ret; 4720 } 4721 4722 /** 4723 * i40e_ndo_set_vf_link_state 4724 * @netdev: network interface device structure 4725 * @vf_id: VF identifier 4726 * @link: required link state 4727 * 4728 * Set the link state of a specified VF, regardless of physical link state 4729 **/ 4730 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4731 { 4732 struct i40e_netdev_priv *np = netdev_priv(netdev); 4733 struct i40e_pf *pf = np->vsi->back; 4734 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4735 struct virtchnl_pf_event pfe; 4736 struct i40e_hw *hw = &pf->hw; 4737 struct i40e_vf *vf; 4738 int abs_vf_id; 4739 int ret = 0; 4740 4741 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4742 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4743 return -EAGAIN; 4744 } 4745 4746 /* validate the request */ 4747 if (vf_id >= pf->num_alloc_vfs) { 4748 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4749 ret = -EINVAL; 4750 goto error_out; 4751 } 4752 4753 vf = &pf->vf[vf_id]; 4754 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4755 4756 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4757 pfe.severity = PF_EVENT_SEVERITY_INFO; 4758 4759 switch (link) { 4760 case IFLA_VF_LINK_STATE_AUTO: 4761 vf->link_forced = false; 4762 i40e_set_vf_link_state(vf, &pfe, ls); 4763 break; 4764 case IFLA_VF_LINK_STATE_ENABLE: 4765 vf->link_forced = true; 4766 vf->link_up = true; 4767 i40e_set_vf_link_state(vf, &pfe, ls); 4768 break; 4769 case IFLA_VF_LINK_STATE_DISABLE: 4770 vf->link_forced = true; 4771 vf->link_up = false; 4772 i40e_set_vf_link_state(vf, &pfe, ls); 4773 break; 4774 default: 4775 ret = -EINVAL; 4776 goto error_out; 4777 } 4778 /* Notify the VF of its new link state */ 4779 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4780 0, (u8 *)&pfe, sizeof(pfe), NULL); 4781 4782 error_out: 4783 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4784 return ret; 4785 } 4786 4787 /** 4788 * i40e_ndo_set_vf_spoofchk 4789 * @netdev: network interface device structure 4790 * @vf_id: VF identifier 4791 * @enable: flag to enable or disable feature 4792 * 4793 * Enable or disable VF spoof checking 4794 **/ 4795 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4796 { 4797 struct i40e_netdev_priv *np = netdev_priv(netdev); 4798 struct i40e_vsi *vsi = np->vsi; 4799 struct i40e_pf *pf = vsi->back; 4800 struct i40e_vsi_context ctxt; 4801 struct i40e_hw *hw = &pf->hw; 4802 struct i40e_vf *vf; 4803 int ret = 0; 4804 4805 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4806 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4807 return -EAGAIN; 4808 } 4809 4810 /* validate the request */ 4811 if (vf_id >= pf->num_alloc_vfs) { 4812 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4813 ret = -EINVAL; 4814 goto out; 4815 } 4816 4817 vf = &(pf->vf[vf_id]); 4818 if (!i40e_check_vf_init_timeout(vf)) { 4819 ret = -EAGAIN; 4820 goto out; 4821 } 4822 4823 if (enable == vf->spoofchk) 4824 goto out; 4825 4826 vf->spoofchk = enable; 4827 memset(&ctxt, 0, sizeof(ctxt)); 4828 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4829 ctxt.pf_num = pf->hw.pf_id; 4830 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4831 if (enable) 4832 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4833 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4834 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4835 if (ret) { 4836 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4837 ret); 4838 ret = -EIO; 4839 } 4840 out: 4841 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4842 return ret; 4843 } 4844 4845 /** 4846 * i40e_ndo_set_vf_trust 4847 * @netdev: network interface device structure of the pf 4848 * @vf_id: VF identifier 4849 * @setting: trust setting 4850 * 4851 * Enable or disable VF trust setting 4852 **/ 4853 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4854 { 4855 struct i40e_netdev_priv *np = netdev_priv(netdev); 4856 struct i40e_pf *pf = np->vsi->back; 4857 struct i40e_vf *vf; 4858 int ret = 0; 4859 4860 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4861 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4862 return -EAGAIN; 4863 } 4864 4865 /* validate the request */ 4866 if (vf_id >= pf->num_alloc_vfs) { 4867 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4868 ret = -EINVAL; 4869 goto out; 4870 } 4871 4872 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4873 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4874 ret = -EINVAL; 4875 goto out; 4876 } 4877 4878 vf = &pf->vf[vf_id]; 4879 4880 if (setting == vf->trusted) 4881 goto out; 4882 4883 vf->trusted = setting; 4884 4885 /* request PF to sync mac/vlan filters for the VF */ 4886 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4887 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4888 4889 i40e_vc_reset_vf(vf, true); 4890 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4891 vf_id, setting ? "" : "un"); 4892 4893 if (vf->adq_enabled) { 4894 if (!vf->trusted) { 4895 dev_info(&pf->pdev->dev, 4896 "VF %u no longer Trusted, deleting all cloud filters\n", 4897 vf_id); 4898 i40e_del_all_cloud_filters(vf); 4899 } 4900 } 4901 4902 out: 4903 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4904 return ret; 4905 } 4906 4907 /** 4908 * i40e_get_vf_stats - populate some stats for the VF 4909 * @netdev: the netdev of the PF 4910 * @vf_id: the host OS identifier (0-127) 4911 * @vf_stats: pointer to the OS memory to be initialized 4912 */ 4913 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4914 struct ifla_vf_stats *vf_stats) 4915 { 4916 struct i40e_netdev_priv *np = netdev_priv(netdev); 4917 struct i40e_pf *pf = np->vsi->back; 4918 struct i40e_eth_stats *stats; 4919 struct i40e_vsi *vsi; 4920 struct i40e_vf *vf; 4921 4922 /* validate the request */ 4923 if (i40e_validate_vf(pf, vf_id)) 4924 return -EINVAL; 4925 4926 vf = &pf->vf[vf_id]; 4927 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4928 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4929 return -EBUSY; 4930 } 4931 4932 vsi = pf->vsi[vf->lan_vsi_idx]; 4933 if (!vsi) 4934 return -EINVAL; 4935 4936 i40e_update_eth_stats(vsi); 4937 stats = &vsi->eth_stats; 4938 4939 memset(vf_stats, 0, sizeof(*vf_stats)); 4940 4941 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4942 stats->rx_multicast; 4943 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4944 stats->tx_multicast; 4945 vf_stats->rx_bytes = stats->rx_bytes; 4946 vf_stats->tx_bytes = stats->tx_bytes; 4947 vf_stats->broadcast = stats->rx_broadcast; 4948 vf_stats->multicast = stats->rx_multicast; 4949 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other; 4950 vf_stats->tx_dropped = stats->tx_discards; 4951 4952 return 0; 4953 } 4954