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 v_idx = qv_info->v_idx; 495 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 496 /* Figure out the queue after CEQ and make that the 497 * first queue. 498 */ 499 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 500 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 501 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK, 502 reg); 503 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK, 504 reg); 505 506 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 507 reg = (next_q_index & 508 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 509 (next_q_type << 510 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 511 512 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 513 } 514 } 515 kfree(vf->qvlist_info); 516 vf->qvlist_info = NULL; 517 } 518 519 /** 520 * i40e_config_rdma_qvlist 521 * @vf: pointer to the VF info 522 * @qvlist_info: queue and vector list 523 * 524 * Return 0 on success or < 0 on error 525 **/ 526 static int 527 i40e_config_rdma_qvlist(struct i40e_vf *vf, 528 struct virtchnl_rdma_qvlist_info *qvlist_info) 529 { 530 struct i40e_pf *pf = vf->pf; 531 struct i40e_hw *hw = &pf->hw; 532 struct virtchnl_rdma_qv_info *qv_info; 533 u32 v_idx, i, reg_idx, reg; 534 u32 next_q_idx, next_q_type; 535 size_t size; 536 u32 msix_vf; 537 int ret = 0; 538 539 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 540 541 if (qvlist_info->num_vectors > msix_vf) { 542 dev_warn(&pf->pdev->dev, 543 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 544 qvlist_info->num_vectors, 545 msix_vf); 546 ret = -EINVAL; 547 goto err_out; 548 } 549 550 kfree(vf->qvlist_info); 551 size = virtchnl_struct_size(vf->qvlist_info, qv_info, 552 qvlist_info->num_vectors); 553 vf->qvlist_info = kzalloc(size, GFP_KERNEL); 554 if (!vf->qvlist_info) { 555 ret = -ENOMEM; 556 goto err_out; 557 } 558 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 559 560 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 561 for (i = 0; i < qvlist_info->num_vectors; i++) { 562 qv_info = &qvlist_info->qv_info[i]; 563 564 /* Validate vector id belongs to this vf */ 565 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 566 ret = -EINVAL; 567 goto err_free; 568 } 569 570 v_idx = qv_info->v_idx; 571 572 vf->qvlist_info->qv_info[i] = *qv_info; 573 574 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 575 /* We might be sharing the interrupt, so get the first queue 576 * index and type, push it down the list by adding the new 577 * queue on top. Also link it with the new queue in CEQCTL. 578 */ 579 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 580 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK, 581 reg); 582 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK, 583 reg); 584 585 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 586 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 587 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 588 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 589 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 590 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 591 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 592 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 593 594 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 595 reg = (qv_info->ceq_idx & 596 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 597 (I40E_QUEUE_TYPE_PE_CEQ << 598 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 599 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 600 } 601 602 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 603 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 604 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 605 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 606 607 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 608 } 609 } 610 611 return 0; 612 err_free: 613 kfree(vf->qvlist_info); 614 vf->qvlist_info = NULL; 615 err_out: 616 return ret; 617 } 618 619 /** 620 * i40e_config_vsi_tx_queue 621 * @vf: pointer to the VF info 622 * @vsi_id: id of VSI as provided by the FW 623 * @vsi_queue_id: vsi relative queue index 624 * @info: config. info 625 * 626 * configure tx queue 627 **/ 628 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 629 u16 vsi_queue_id, 630 struct virtchnl_txq_info *info) 631 { 632 struct i40e_pf *pf = vf->pf; 633 struct i40e_hw *hw = &pf->hw; 634 struct i40e_hmc_obj_txq tx_ctx; 635 struct i40e_vsi *vsi; 636 u16 pf_queue_id; 637 u32 qtx_ctl; 638 int ret = 0; 639 640 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 641 ret = -ENOENT; 642 goto error_context; 643 } 644 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 645 vsi = i40e_find_vsi_from_id(pf, vsi_id); 646 if (!vsi) { 647 ret = -ENOENT; 648 goto error_context; 649 } 650 651 /* clear the context structure first */ 652 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 653 654 /* only set the required fields */ 655 tx_ctx.base = info->dma_ring_addr / 128; 656 tx_ctx.qlen = info->ring_len; 657 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 658 tx_ctx.rdylist_act = 0; 659 tx_ctx.head_wb_ena = info->headwb_enabled; 660 tx_ctx.head_wb_addr = info->dma_headwb_addr; 661 662 /* clear the context in the HMC */ 663 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 664 if (ret) { 665 dev_err(&pf->pdev->dev, 666 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 667 pf_queue_id, ret); 668 ret = -ENOENT; 669 goto error_context; 670 } 671 672 /* set the context in the HMC */ 673 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 674 if (ret) { 675 dev_err(&pf->pdev->dev, 676 "Failed to set VF LAN Tx queue context %d error: %d\n", 677 pf_queue_id, ret); 678 ret = -ENOENT; 679 goto error_context; 680 } 681 682 /* associate this queue with the PCI VF function */ 683 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 684 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id); 685 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK, 686 vf->vf_id + hw->func_caps.vf_base_id); 687 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 688 i40e_flush(hw); 689 690 error_context: 691 return ret; 692 } 693 694 /** 695 * i40e_config_vsi_rx_queue 696 * @vf: pointer to the VF info 697 * @vsi_id: id of VSI as provided by the FW 698 * @vsi_queue_id: vsi relative queue index 699 * @info: config. info 700 * 701 * configure rx queue 702 **/ 703 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 704 u16 vsi_queue_id, 705 struct virtchnl_rxq_info *info) 706 { 707 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 708 struct i40e_pf *pf = vf->pf; 709 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 710 struct i40e_hw *hw = &pf->hw; 711 struct i40e_hmc_obj_rxq rx_ctx; 712 int ret = 0; 713 714 /* clear the context structure first */ 715 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 716 717 /* only set the required fields */ 718 rx_ctx.base = info->dma_ring_addr / 128; 719 rx_ctx.qlen = info->ring_len; 720 721 if (info->splithdr_enabled) { 722 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 723 I40E_RX_SPLIT_IP | 724 I40E_RX_SPLIT_TCP_UDP | 725 I40E_RX_SPLIT_SCTP; 726 /* header length validation */ 727 if (info->hdr_size > ((2 * 1024) - 64)) { 728 ret = -EINVAL; 729 goto error_param; 730 } 731 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 732 733 /* set split mode 10b */ 734 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 735 } 736 737 /* databuffer length validation */ 738 if (info->databuffer_size > ((16 * 1024) - 128)) { 739 ret = -EINVAL; 740 goto error_param; 741 } 742 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 743 744 /* max pkt. length validation */ 745 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 746 ret = -EINVAL; 747 goto error_param; 748 } 749 rx_ctx.rxmax = info->max_pkt_size; 750 751 /* if port VLAN is configured increase the max packet size */ 752 if (vsi->info.pvid) 753 rx_ctx.rxmax += VLAN_HLEN; 754 755 /* enable 32bytes desc always */ 756 rx_ctx.dsize = 1; 757 758 /* default values */ 759 rx_ctx.lrxqthresh = 1; 760 rx_ctx.crcstrip = 1; 761 rx_ctx.prefena = 1; 762 rx_ctx.l2tsel = 1; 763 764 /* clear the context in the HMC */ 765 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 766 if (ret) { 767 dev_err(&pf->pdev->dev, 768 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 769 pf_queue_id, ret); 770 ret = -ENOENT; 771 goto error_param; 772 } 773 774 /* set the context in the HMC */ 775 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 776 if (ret) { 777 dev_err(&pf->pdev->dev, 778 "Failed to set VF LAN Rx queue context %d error: %d\n", 779 pf_queue_id, ret); 780 ret = -ENOENT; 781 goto error_param; 782 } 783 784 error_param: 785 return ret; 786 } 787 788 /** 789 * i40e_alloc_vsi_res 790 * @vf: pointer to the VF info 791 * @idx: VSI index, applies only for ADq mode, zero otherwise 792 * 793 * alloc VF vsi context & resources 794 **/ 795 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 796 { 797 struct i40e_mac_filter *f = NULL; 798 struct i40e_pf *pf = vf->pf; 799 struct i40e_vsi *vsi; 800 u64 max_tx_rate = 0; 801 int ret = 0; 802 803 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 804 vf->vf_id); 805 806 if (!vsi) { 807 dev_err(&pf->pdev->dev, 808 "add vsi failed for VF %d, aq_err %d\n", 809 vf->vf_id, pf->hw.aq.asq_last_status); 810 ret = -ENOENT; 811 goto error_alloc_vsi_res; 812 } 813 814 if (!idx) { 815 u64 hena = i40e_pf_get_default_rss_hena(pf); 816 u8 broadcast[ETH_ALEN]; 817 818 vf->lan_vsi_idx = vsi->idx; 819 vf->lan_vsi_id = vsi->id; 820 /* If the port VLAN has been configured and then the 821 * VF driver was removed then the VSI port VLAN 822 * configuration was destroyed. Check if there is 823 * a port VLAN and restore the VSI configuration if 824 * needed. 825 */ 826 if (vf->port_vlan_id) 827 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 828 829 spin_lock_bh(&vsi->mac_filter_hash_lock); 830 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 831 f = i40e_add_mac_filter(vsi, 832 vf->default_lan_addr.addr); 833 if (!f) 834 dev_info(&pf->pdev->dev, 835 "Could not add MAC filter %pM for VF %d\n", 836 vf->default_lan_addr.addr, vf->vf_id); 837 } 838 eth_broadcast_addr(broadcast); 839 f = i40e_add_mac_filter(vsi, broadcast); 840 if (!f) 841 dev_info(&pf->pdev->dev, 842 "Could not allocate VF broadcast filter\n"); 843 spin_unlock_bh(&vsi->mac_filter_hash_lock); 844 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 845 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 846 /* program mac filter only for VF VSI */ 847 ret = i40e_sync_vsi_filters(vsi); 848 if (ret) 849 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 850 } 851 852 /* storing VSI index and id for ADq and don't apply the mac filter */ 853 if (vf->adq_enabled) { 854 vf->ch[idx].vsi_idx = vsi->idx; 855 vf->ch[idx].vsi_id = vsi->id; 856 } 857 858 /* Set VF bandwidth if specified */ 859 if (vf->tx_rate) { 860 max_tx_rate = vf->tx_rate; 861 } else if (vf->ch[idx].max_tx_rate) { 862 max_tx_rate = vf->ch[idx].max_tx_rate; 863 } 864 865 if (max_tx_rate) { 866 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 867 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 868 max_tx_rate, 0, NULL); 869 if (ret) 870 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 871 vf->vf_id, ret); 872 } 873 874 error_alloc_vsi_res: 875 return ret; 876 } 877 878 /** 879 * i40e_map_pf_queues_to_vsi 880 * @vf: pointer to the VF info 881 * 882 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 883 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 884 **/ 885 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 886 { 887 struct i40e_pf *pf = vf->pf; 888 struct i40e_hw *hw = &pf->hw; 889 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 890 u16 vsi_id, qps; 891 int i, j; 892 893 if (vf->adq_enabled) 894 num_tc = vf->num_tc; 895 896 for (i = 0; i < num_tc; i++) { 897 if (vf->adq_enabled) { 898 qps = vf->ch[i].num_qps; 899 vsi_id = vf->ch[i].vsi_id; 900 } else { 901 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 902 vsi_id = vf->lan_vsi_id; 903 } 904 905 for (j = 0; j < 7; j++) { 906 if (j * 2 >= qps) { 907 /* end of list */ 908 reg = 0x07FF07FF; 909 } else { 910 u16 qid = i40e_vc_get_pf_queue_id(vf, 911 vsi_id, 912 j * 2); 913 reg = qid; 914 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 915 (j * 2) + 1); 916 reg |= qid << 16; 917 } 918 i40e_write_rx_ctl(hw, 919 I40E_VSILAN_QTABLE(j, vsi_id), 920 reg); 921 } 922 } 923 } 924 925 /** 926 * i40e_map_pf_to_vf_queues 927 * @vf: pointer to the VF info 928 * 929 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 930 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 931 **/ 932 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 933 { 934 struct i40e_pf *pf = vf->pf; 935 struct i40e_hw *hw = &pf->hw; 936 u32 reg, total_qps = 0; 937 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 938 u16 vsi_id, qid; 939 int i, j; 940 941 if (vf->adq_enabled) 942 num_tc = vf->num_tc; 943 944 for (i = 0; i < num_tc; i++) { 945 if (vf->adq_enabled) { 946 qps = vf->ch[i].num_qps; 947 vsi_id = vf->ch[i].vsi_id; 948 } else { 949 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 950 vsi_id = vf->lan_vsi_id; 951 } 952 953 for (j = 0; j < qps; j++) { 954 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 955 956 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 957 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 958 reg); 959 total_qps++; 960 } 961 } 962 } 963 964 /** 965 * i40e_enable_vf_mappings 966 * @vf: pointer to the VF info 967 * 968 * enable VF mappings 969 **/ 970 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 971 { 972 struct i40e_pf *pf = vf->pf; 973 struct i40e_hw *hw = &pf->hw; 974 u32 reg; 975 976 /* Tell the hardware we're using noncontiguous mapping. HW requires 977 * that VF queues be mapped using this method, even when they are 978 * contiguous in real life 979 */ 980 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 981 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 982 983 /* enable VF vplan_qtable mappings */ 984 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 985 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 986 987 i40e_map_pf_to_vf_queues(vf); 988 i40e_map_pf_queues_to_vsi(vf); 989 990 i40e_flush(hw); 991 } 992 993 /** 994 * i40e_disable_vf_mappings 995 * @vf: pointer to the VF info 996 * 997 * disable VF mappings 998 **/ 999 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 1000 { 1001 struct i40e_pf *pf = vf->pf; 1002 struct i40e_hw *hw = &pf->hw; 1003 int i; 1004 1005 /* disable qp mappings */ 1006 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 1007 for (i = 0; i < I40E_MAX_VSI_QP; i++) 1008 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 1009 I40E_QUEUE_END_OF_LIST); 1010 i40e_flush(hw); 1011 } 1012 1013 /** 1014 * i40e_free_vf_res 1015 * @vf: pointer to the VF info 1016 * 1017 * free VF resources 1018 **/ 1019 static void i40e_free_vf_res(struct i40e_vf *vf) 1020 { 1021 struct i40e_pf *pf = vf->pf; 1022 struct i40e_hw *hw = &pf->hw; 1023 u32 reg_idx, reg; 1024 int i, j, msix_vf; 1025 1026 /* Start by disabling VF's configuration API to prevent the OS from 1027 * accessing the VF's VSI after it's freed / invalidated. 1028 */ 1029 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1030 1031 /* It's possible the VF had requeuested more queues than the default so 1032 * do the accounting here when we're about to free them. 1033 */ 1034 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1035 pf->queues_left += vf->num_queue_pairs - 1036 I40E_DEFAULT_QUEUES_PER_VF; 1037 } 1038 1039 /* free vsi & disconnect it from the parent uplink */ 1040 if (vf->lan_vsi_idx) { 1041 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1042 vf->lan_vsi_idx = 0; 1043 vf->lan_vsi_id = 0; 1044 } 1045 1046 /* do the accounting and remove additional ADq VSI's */ 1047 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1048 for (j = 0; j < vf->num_tc; j++) { 1049 /* At this point VSI0 is already released so don't 1050 * release it again and only clear their values in 1051 * structure variables 1052 */ 1053 if (j) 1054 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1055 vf->ch[j].vsi_idx = 0; 1056 vf->ch[j].vsi_id = 0; 1057 } 1058 } 1059 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1060 1061 /* disable interrupts so the VF starts in a known state */ 1062 for (i = 0; i < msix_vf; i++) { 1063 /* format is same for both registers */ 1064 if (0 == i) 1065 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1066 else 1067 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1068 (vf->vf_id)) 1069 + (i - 1)); 1070 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1071 i40e_flush(hw); 1072 } 1073 1074 /* clear the irq settings */ 1075 for (i = 0; i < msix_vf; i++) { 1076 /* format is same for both registers */ 1077 if (0 == i) 1078 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1079 else 1080 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1081 (vf->vf_id)) 1082 + (i - 1)); 1083 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1084 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1085 wr32(hw, reg_idx, reg); 1086 i40e_flush(hw); 1087 } 1088 /* reset some of the state variables keeping track of the resources */ 1089 vf->num_queue_pairs = 0; 1090 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1091 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1092 } 1093 1094 /** 1095 * i40e_alloc_vf_res 1096 * @vf: pointer to the VF info 1097 * 1098 * allocate VF resources 1099 **/ 1100 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1101 { 1102 struct i40e_pf *pf = vf->pf; 1103 int total_queue_pairs = 0; 1104 int ret, idx; 1105 1106 if (vf->num_req_queues && 1107 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1108 pf->num_vf_qps = vf->num_req_queues; 1109 else 1110 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1111 1112 /* allocate hw vsi context & associated resources */ 1113 ret = i40e_alloc_vsi_res(vf, 0); 1114 if (ret) 1115 goto error_alloc; 1116 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1117 1118 /* allocate additional VSIs based on tc information for ADq */ 1119 if (vf->adq_enabled) { 1120 if (pf->queues_left >= 1121 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1122 /* TC 0 always belongs to VF VSI */ 1123 for (idx = 1; idx < vf->num_tc; idx++) { 1124 ret = i40e_alloc_vsi_res(vf, idx); 1125 if (ret) 1126 goto error_alloc; 1127 } 1128 /* send correct number of queues */ 1129 total_queue_pairs = I40E_MAX_VF_QUEUES; 1130 } else { 1131 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1132 vf->vf_id); 1133 vf->adq_enabled = false; 1134 } 1135 } 1136 1137 /* We account for each VF to get a default number of queue pairs. If 1138 * the VF has now requested more, we need to account for that to make 1139 * certain we never request more queues than we actually have left in 1140 * HW. 1141 */ 1142 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1143 pf->queues_left -= 1144 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1145 1146 if (vf->trusted) 1147 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1148 else 1149 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1150 1151 /* store the total qps number for the runtime 1152 * VF req validation 1153 */ 1154 vf->num_queue_pairs = total_queue_pairs; 1155 1156 /* VF is now completely initialized */ 1157 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1158 1159 error_alloc: 1160 if (ret) 1161 i40e_free_vf_res(vf); 1162 1163 return ret; 1164 } 1165 1166 #define VF_DEVICE_STATUS 0xAA 1167 #define VF_TRANS_PENDING_MASK 0x20 1168 /** 1169 * i40e_quiesce_vf_pci 1170 * @vf: pointer to the VF structure 1171 * 1172 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1173 * if the transactions never clear. 1174 **/ 1175 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1176 { 1177 struct i40e_pf *pf = vf->pf; 1178 struct i40e_hw *hw = &pf->hw; 1179 int vf_abs_id, i; 1180 u32 reg; 1181 1182 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1183 1184 wr32(hw, I40E_PF_PCI_CIAA, 1185 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1186 for (i = 0; i < 100; i++) { 1187 reg = rd32(hw, I40E_PF_PCI_CIAD); 1188 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1189 return 0; 1190 udelay(1); 1191 } 1192 return -EIO; 1193 } 1194 1195 /** 1196 * __i40e_getnum_vf_vsi_vlan_filters 1197 * @vsi: pointer to the vsi 1198 * 1199 * called to get the number of VLANs offloaded on this VF 1200 **/ 1201 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1202 { 1203 struct i40e_mac_filter *f; 1204 u16 num_vlans = 0, bkt; 1205 1206 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1207 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1208 num_vlans++; 1209 } 1210 1211 return num_vlans; 1212 } 1213 1214 /** 1215 * i40e_getnum_vf_vsi_vlan_filters 1216 * @vsi: pointer to the vsi 1217 * 1218 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1219 **/ 1220 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1221 { 1222 int num_vlans; 1223 1224 spin_lock_bh(&vsi->mac_filter_hash_lock); 1225 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1226 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1227 1228 return num_vlans; 1229 } 1230 1231 /** 1232 * i40e_get_vlan_list_sync 1233 * @vsi: pointer to the VSI 1234 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1235 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1236 * This array is allocated here, but has to be freed in caller. 1237 * 1238 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1239 **/ 1240 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1241 s16 **vlan_list) 1242 { 1243 struct i40e_mac_filter *f; 1244 int i = 0; 1245 int bkt; 1246 1247 spin_lock_bh(&vsi->mac_filter_hash_lock); 1248 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1249 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1250 if (!(*vlan_list)) 1251 goto err; 1252 1253 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1254 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1255 continue; 1256 (*vlan_list)[i++] = f->vlan; 1257 } 1258 err: 1259 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1260 } 1261 1262 /** 1263 * i40e_set_vsi_promisc 1264 * @vf: pointer to the VF struct 1265 * @seid: VSI number 1266 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1267 * for a given VLAN 1268 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1269 * for a given VLAN 1270 * @vl: List of VLANs - apply filter for given VLANs 1271 * @num_vlans: Number of elements in @vl 1272 **/ 1273 static int 1274 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1275 bool unicast_enable, s16 *vl, u16 num_vlans) 1276 { 1277 struct i40e_pf *pf = vf->pf; 1278 struct i40e_hw *hw = &pf->hw; 1279 int aq_ret, aq_tmp = 0; 1280 int i; 1281 1282 /* No VLAN to set promisc on, set on VSI */ 1283 if (!num_vlans || !vl) { 1284 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1285 multi_enable, 1286 NULL); 1287 if (aq_ret) { 1288 int aq_err = pf->hw.aq.asq_last_status; 1289 1290 dev_err(&pf->pdev->dev, 1291 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1292 vf->vf_id, 1293 ERR_PTR(aq_ret), 1294 i40e_aq_str(&pf->hw, aq_err)); 1295 1296 return aq_ret; 1297 } 1298 1299 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1300 unicast_enable, 1301 NULL, true); 1302 1303 if (aq_ret) { 1304 int aq_err = pf->hw.aq.asq_last_status; 1305 1306 dev_err(&pf->pdev->dev, 1307 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1308 vf->vf_id, 1309 ERR_PTR(aq_ret), 1310 i40e_aq_str(&pf->hw, aq_err)); 1311 } 1312 1313 return aq_ret; 1314 } 1315 1316 for (i = 0; i < num_vlans; i++) { 1317 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1318 multi_enable, 1319 vl[i], NULL); 1320 if (aq_ret) { 1321 int aq_err = pf->hw.aq.asq_last_status; 1322 1323 dev_err(&pf->pdev->dev, 1324 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n", 1325 vf->vf_id, 1326 ERR_PTR(aq_ret), 1327 i40e_aq_str(&pf->hw, aq_err)); 1328 1329 if (!aq_tmp) 1330 aq_tmp = aq_ret; 1331 } 1332 1333 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1334 unicast_enable, 1335 vl[i], NULL); 1336 if (aq_ret) { 1337 int aq_err = pf->hw.aq.asq_last_status; 1338 1339 dev_err(&pf->pdev->dev, 1340 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n", 1341 vf->vf_id, 1342 ERR_PTR(aq_ret), 1343 i40e_aq_str(&pf->hw, aq_err)); 1344 1345 if (!aq_tmp) 1346 aq_tmp = aq_ret; 1347 } 1348 } 1349 1350 if (aq_tmp) 1351 aq_ret = aq_tmp; 1352 1353 return aq_ret; 1354 } 1355 1356 /** 1357 * i40e_config_vf_promiscuous_mode 1358 * @vf: pointer to the VF info 1359 * @vsi_id: VSI id 1360 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1361 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1362 * 1363 * Called from the VF to configure the promiscuous mode of 1364 * VF vsis and from the VF reset path to reset promiscuous mode. 1365 **/ 1366 static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1367 u16 vsi_id, 1368 bool allmulti, 1369 bool alluni) 1370 { 1371 struct i40e_pf *pf = vf->pf; 1372 struct i40e_vsi *vsi; 1373 int aq_ret = 0; 1374 u16 num_vlans; 1375 s16 *vl; 1376 1377 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1378 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1379 return -EINVAL; 1380 1381 if (vf->port_vlan_id) { 1382 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1383 alluni, &vf->port_vlan_id, 1); 1384 return aq_ret; 1385 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1386 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1387 1388 if (!vl) 1389 return -ENOMEM; 1390 1391 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1392 vl, num_vlans); 1393 kfree(vl); 1394 return aq_ret; 1395 } 1396 1397 /* no VLANs to set on, set on VSI */ 1398 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1399 NULL, 0); 1400 return aq_ret; 1401 } 1402 1403 /** 1404 * i40e_sync_vfr_reset 1405 * @hw: pointer to hw struct 1406 * @vf_id: VF identifier 1407 * 1408 * Before trigger hardware reset, we need to know if no other process has 1409 * reserved the hardware for any reset operations. This check is done by 1410 * examining the status of the RSTAT1 register used to signal the reset. 1411 **/ 1412 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1413 { 1414 u32 reg; 1415 int i; 1416 1417 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1418 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1419 I40E_VFINT_ICR0_ADMINQ_MASK; 1420 if (reg) 1421 return 0; 1422 1423 usleep_range(100, 200); 1424 } 1425 1426 return -EAGAIN; 1427 } 1428 1429 /** 1430 * i40e_trigger_vf_reset 1431 * @vf: pointer to the VF structure 1432 * @flr: VFLR was issued or not 1433 * 1434 * Trigger hardware to start a reset for a particular VF. Expects the caller 1435 * to wait the proper amount of time to allow hardware to reset the VF before 1436 * it cleans up and restores VF functionality. 1437 **/ 1438 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1439 { 1440 struct i40e_pf *pf = vf->pf; 1441 struct i40e_hw *hw = &pf->hw; 1442 u32 reg, reg_idx, bit_idx; 1443 bool vf_active; 1444 u32 radq; 1445 1446 /* warn the VF */ 1447 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1448 1449 /* Disable VF's configuration API during reset. The flag is re-enabled 1450 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1451 * It's normally disabled in i40e_free_vf_res(), but it's safer 1452 * to do it earlier to give some time to finish to any VF config 1453 * functions that may still be running at this point. 1454 */ 1455 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1456 1457 /* In the case of a VFLR, the HW has already reset the VF and we 1458 * just need to clean up, so don't hit the VFRTRIG register. 1459 */ 1460 if (!flr) { 1461 /* Sync VFR reset before trigger next one */ 1462 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1463 I40E_VFINT_ICR0_ADMINQ_MASK; 1464 if (vf_active && !radq) 1465 /* waiting for finish reset by virtual driver */ 1466 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1467 dev_info(&pf->pdev->dev, 1468 "Reset VF %d never finished\n", 1469 vf->vf_id); 1470 1471 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1472 * in progress state in rstat1 register. 1473 */ 1474 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1475 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1476 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1477 i40e_flush(hw); 1478 } 1479 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1480 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1481 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1482 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1483 i40e_flush(hw); 1484 1485 if (i40e_quiesce_vf_pci(vf)) 1486 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1487 vf->vf_id); 1488 } 1489 1490 /** 1491 * i40e_cleanup_reset_vf 1492 * @vf: pointer to the VF structure 1493 * 1494 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1495 * have verified whether the reset is finished properly, and ensure the 1496 * minimum amount of wait time has passed. 1497 **/ 1498 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1499 { 1500 struct i40e_pf *pf = vf->pf; 1501 struct i40e_hw *hw = &pf->hw; 1502 u32 reg; 1503 1504 /* disable promisc modes in case they were enabled */ 1505 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1506 1507 /* free VF resources to begin resetting the VSI state */ 1508 i40e_free_vf_res(vf); 1509 1510 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1511 * By doing this we allow HW to access VF memory at any point. If we 1512 * did it any sooner, HW could access memory while it was being freed 1513 * in i40e_free_vf_res(), causing an IOMMU fault. 1514 * 1515 * On the other hand, this needs to be done ASAP, because the VF driver 1516 * is waiting for this to happen and may report a timeout. It's 1517 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1518 * it. 1519 */ 1520 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1521 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1522 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1523 1524 /* reallocate VF resources to finish resetting the VSI state */ 1525 if (!i40e_alloc_vf_res(vf)) { 1526 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1527 i40e_enable_vf_mappings(vf); 1528 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1529 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1530 /* Do not notify the client during VF init */ 1531 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1532 &vf->vf_states)) 1533 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1534 vf->num_vlan = 0; 1535 } 1536 1537 /* Tell the VF driver the reset is done. This needs to be done only 1538 * after VF has been fully initialized, because the VF driver may 1539 * request resources immediately after setting this flag. 1540 */ 1541 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1542 } 1543 1544 /** 1545 * i40e_reset_vf 1546 * @vf: pointer to the VF structure 1547 * @flr: VFLR was issued or not 1548 * 1549 * Returns true if the VF is in reset, resets successfully, or resets 1550 * are disabled and false otherwise. 1551 **/ 1552 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1553 { 1554 struct i40e_pf *pf = vf->pf; 1555 struct i40e_hw *hw = &pf->hw; 1556 bool rsd = false; 1557 u32 reg; 1558 int i; 1559 1560 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1561 return true; 1562 1563 /* Bail out if VFs are disabled. */ 1564 if (test_bit(__I40E_VF_DISABLE, pf->state)) 1565 return true; 1566 1567 /* If VF is being reset already we don't need to continue. */ 1568 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1569 return true; 1570 1571 i40e_trigger_vf_reset(vf, flr); 1572 1573 /* poll VPGEN_VFRSTAT reg to make sure 1574 * that reset is complete 1575 */ 1576 for (i = 0; i < 10; i++) { 1577 /* VF reset requires driver to first reset the VF and then 1578 * poll the status register to make sure that the reset 1579 * completed successfully. Due to internal HW FIFO flushes, 1580 * we must wait 10ms before the register will be valid. 1581 */ 1582 usleep_range(10000, 20000); 1583 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1584 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1585 rsd = true; 1586 break; 1587 } 1588 } 1589 1590 if (flr) 1591 usleep_range(10000, 20000); 1592 1593 if (!rsd) 1594 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1595 vf->vf_id); 1596 usleep_range(10000, 20000); 1597 1598 /* On initial reset, we don't have any queues to disable */ 1599 if (vf->lan_vsi_idx != 0) 1600 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1601 1602 i40e_cleanup_reset_vf(vf); 1603 1604 i40e_flush(hw); 1605 usleep_range(20000, 40000); 1606 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states); 1607 1608 return true; 1609 } 1610 1611 /** 1612 * i40e_reset_all_vfs 1613 * @pf: pointer to the PF structure 1614 * @flr: VFLR was issued or not 1615 * 1616 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1617 * VF, then do all the waiting in one chunk, and finally finish restoring each 1618 * VF after the wait. This is useful during PF routines which need to reset 1619 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1620 * 1621 * Returns true if any VFs were reset, and false otherwise. 1622 **/ 1623 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1624 { 1625 struct i40e_hw *hw = &pf->hw; 1626 struct i40e_vf *vf; 1627 int i, v; 1628 u32 reg; 1629 1630 /* If we don't have any VFs, then there is nothing to reset */ 1631 if (!pf->num_alloc_vfs) 1632 return false; 1633 1634 /* If VFs have been disabled, there is no need to reset */ 1635 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1636 return false; 1637 1638 /* Begin reset on all VFs at once */ 1639 for (v = 0; v < pf->num_alloc_vfs; v++) { 1640 vf = &pf->vf[v]; 1641 /* If VF is being reset no need to trigger reset again */ 1642 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1643 i40e_trigger_vf_reset(&pf->vf[v], flr); 1644 } 1645 1646 /* HW requires some time to make sure it can flush the FIFO for a VF 1647 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1648 * sequence to make sure that it has completed. We'll keep track of 1649 * the VFs using a simple iterator that increments once that VF has 1650 * finished resetting. 1651 */ 1652 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1653 usleep_range(10000, 20000); 1654 1655 /* Check each VF in sequence, beginning with the VF to fail 1656 * the previous check. 1657 */ 1658 while (v < pf->num_alloc_vfs) { 1659 vf = &pf->vf[v]; 1660 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) { 1661 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1662 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1663 break; 1664 } 1665 1666 /* If the current VF has finished resetting, move on 1667 * to the next VF in sequence. 1668 */ 1669 v++; 1670 } 1671 } 1672 1673 if (flr) 1674 usleep_range(10000, 20000); 1675 1676 /* Display a warning if at least one VF didn't manage to reset in 1677 * time, but continue on with the operation. 1678 */ 1679 if (v < pf->num_alloc_vfs) 1680 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1681 pf->vf[v].vf_id); 1682 usleep_range(10000, 20000); 1683 1684 /* Begin disabling all the rings associated with VFs, but do not wait 1685 * between each VF. 1686 */ 1687 for (v = 0; v < pf->num_alloc_vfs; v++) { 1688 /* On initial reset, we don't have any queues to disable */ 1689 if (pf->vf[v].lan_vsi_idx == 0) 1690 continue; 1691 1692 /* If VF is reset in another thread just continue */ 1693 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1694 continue; 1695 1696 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1697 } 1698 1699 /* Now that we've notified HW to disable all of the VF rings, wait 1700 * until they finish. 1701 */ 1702 for (v = 0; v < pf->num_alloc_vfs; v++) { 1703 /* On initial reset, we don't have any queues to disable */ 1704 if (pf->vf[v].lan_vsi_idx == 0) 1705 continue; 1706 1707 /* If VF is reset in another thread just continue */ 1708 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1709 continue; 1710 1711 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1712 } 1713 1714 /* Hw may need up to 50ms to finish disabling the RX queues. We 1715 * minimize the wait by delaying only once for all VFs. 1716 */ 1717 mdelay(50); 1718 1719 /* Finish the reset on each VF */ 1720 for (v = 0; v < pf->num_alloc_vfs; v++) { 1721 /* If VF is reset in another thread just continue */ 1722 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1723 continue; 1724 1725 i40e_cleanup_reset_vf(&pf->vf[v]); 1726 } 1727 1728 i40e_flush(hw); 1729 usleep_range(20000, 40000); 1730 clear_bit(__I40E_VF_DISABLE, pf->state); 1731 1732 return true; 1733 } 1734 1735 /** 1736 * i40e_free_vfs 1737 * @pf: pointer to the PF structure 1738 * 1739 * free VF resources 1740 **/ 1741 void i40e_free_vfs(struct i40e_pf *pf) 1742 { 1743 struct i40e_hw *hw = &pf->hw; 1744 u32 reg_idx, bit_idx; 1745 int i, tmp, vf_id; 1746 1747 if (!pf->vf) 1748 return; 1749 1750 set_bit(__I40E_VFS_RELEASING, pf->state); 1751 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1752 usleep_range(1000, 2000); 1753 1754 i40e_notify_client_of_vf_enable(pf, 0); 1755 1756 /* Disable IOV before freeing resources. This lets any VF drivers 1757 * running in the host get themselves cleaned up before we yank 1758 * the carpet out from underneath their feet. 1759 */ 1760 if (!pci_vfs_assigned(pf->pdev)) 1761 pci_disable_sriov(pf->pdev); 1762 else 1763 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1764 1765 /* Amortize wait time by stopping all VFs at the same time */ 1766 for (i = 0; i < pf->num_alloc_vfs; i++) { 1767 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1768 continue; 1769 1770 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1771 } 1772 1773 for (i = 0; i < pf->num_alloc_vfs; i++) { 1774 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1775 continue; 1776 1777 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1778 } 1779 1780 /* free up VF resources */ 1781 tmp = pf->num_alloc_vfs; 1782 pf->num_alloc_vfs = 0; 1783 for (i = 0; i < tmp; i++) { 1784 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1785 i40e_free_vf_res(&pf->vf[i]); 1786 /* disable qp mappings */ 1787 i40e_disable_vf_mappings(&pf->vf[i]); 1788 } 1789 1790 kfree(pf->vf); 1791 pf->vf = NULL; 1792 1793 /* This check is for when the driver is unloaded while VFs are 1794 * assigned. Setting the number of VFs to 0 through sysfs is caught 1795 * before this function ever gets called. 1796 */ 1797 if (!pci_vfs_assigned(pf->pdev)) { 1798 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1799 * work correctly when SR-IOV gets re-enabled. 1800 */ 1801 for (vf_id = 0; vf_id < tmp; vf_id++) { 1802 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1803 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1804 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1805 } 1806 } 1807 clear_bit(__I40E_VF_DISABLE, pf->state); 1808 clear_bit(__I40E_VFS_RELEASING, pf->state); 1809 } 1810 1811 #ifdef CONFIG_PCI_IOV 1812 /** 1813 * i40e_alloc_vfs 1814 * @pf: pointer to the PF structure 1815 * @num_alloc_vfs: number of VFs to allocate 1816 * 1817 * allocate VF resources 1818 **/ 1819 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1820 { 1821 struct i40e_vf *vfs; 1822 int i, ret = 0; 1823 1824 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1825 i40e_irq_dynamic_disable_icr0(pf); 1826 1827 /* Check to see if we're just allocating resources for extant VFs */ 1828 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1829 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1830 if (ret) { 1831 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1832 pf->num_alloc_vfs = 0; 1833 goto err_iov; 1834 } 1835 } 1836 /* allocate memory */ 1837 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1838 if (!vfs) { 1839 ret = -ENOMEM; 1840 goto err_alloc; 1841 } 1842 pf->vf = vfs; 1843 1844 /* apply default profile */ 1845 for (i = 0; i < num_alloc_vfs; i++) { 1846 vfs[i].pf = pf; 1847 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1848 vfs[i].vf_id = i; 1849 1850 /* assign default capabilities */ 1851 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1852 vfs[i].spoofchk = true; 1853 1854 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1855 1856 } 1857 pf->num_alloc_vfs = num_alloc_vfs; 1858 1859 /* VF resources get allocated during reset */ 1860 i40e_reset_all_vfs(pf, false); 1861 1862 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1863 1864 err_alloc: 1865 if (ret) 1866 i40e_free_vfs(pf); 1867 err_iov: 1868 /* Re-enable interrupt 0. */ 1869 i40e_irq_dynamic_enable_icr0(pf); 1870 return ret; 1871 } 1872 1873 #endif 1874 /** 1875 * i40e_pci_sriov_enable 1876 * @pdev: pointer to a pci_dev structure 1877 * @num_vfs: number of VFs to allocate 1878 * 1879 * Enable or change the number of VFs 1880 **/ 1881 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1882 { 1883 #ifdef CONFIG_PCI_IOV 1884 struct i40e_pf *pf = pci_get_drvdata(pdev); 1885 int pre_existing_vfs = pci_num_vf(pdev); 1886 int err = 0; 1887 1888 if (test_bit(__I40E_TESTING, pf->state)) { 1889 dev_warn(&pdev->dev, 1890 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1891 err = -EPERM; 1892 goto err_out; 1893 } 1894 1895 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1896 i40e_free_vfs(pf); 1897 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1898 goto out; 1899 1900 if (num_vfs > pf->num_req_vfs) { 1901 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1902 num_vfs, pf->num_req_vfs); 1903 err = -EPERM; 1904 goto err_out; 1905 } 1906 1907 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1908 err = i40e_alloc_vfs(pf, num_vfs); 1909 if (err) { 1910 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1911 goto err_out; 1912 } 1913 1914 out: 1915 return num_vfs; 1916 1917 err_out: 1918 return err; 1919 #endif 1920 return 0; 1921 } 1922 1923 /** 1924 * i40e_pci_sriov_configure 1925 * @pdev: pointer to a pci_dev structure 1926 * @num_vfs: number of VFs to allocate 1927 * 1928 * Enable or change the number of VFs. Called when the user updates the number 1929 * of VFs in sysfs. 1930 **/ 1931 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1932 { 1933 struct i40e_pf *pf = pci_get_drvdata(pdev); 1934 int ret = 0; 1935 1936 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1937 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1938 return -EAGAIN; 1939 } 1940 1941 if (num_vfs) { 1942 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) { 1943 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1944 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1945 } 1946 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1947 goto sriov_configure_out; 1948 } 1949 1950 if (!pci_vfs_assigned(pf->pdev)) { 1951 i40e_free_vfs(pf); 1952 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags); 1953 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1954 } else { 1955 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1956 ret = -EINVAL; 1957 goto sriov_configure_out; 1958 } 1959 sriov_configure_out: 1960 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1961 return ret; 1962 } 1963 1964 /***********************virtual channel routines******************/ 1965 1966 /** 1967 * i40e_vc_send_msg_to_vf 1968 * @vf: pointer to the VF info 1969 * @v_opcode: virtual channel opcode 1970 * @v_retval: virtual channel return value 1971 * @msg: pointer to the msg buffer 1972 * @msglen: msg length 1973 * 1974 * send msg to VF 1975 **/ 1976 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1977 u32 v_retval, u8 *msg, u16 msglen) 1978 { 1979 struct i40e_pf *pf; 1980 struct i40e_hw *hw; 1981 int abs_vf_id; 1982 int aq_ret; 1983 1984 /* validate the request */ 1985 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1986 return -EINVAL; 1987 1988 pf = vf->pf; 1989 hw = &pf->hw; 1990 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1991 1992 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1993 msg, msglen, NULL); 1994 if (aq_ret) { 1995 dev_info(&pf->pdev->dev, 1996 "Unable to send the message to VF %d aq_err %d\n", 1997 vf->vf_id, pf->hw.aq.asq_last_status); 1998 return -EIO; 1999 } 2000 2001 return 0; 2002 } 2003 2004 /** 2005 * i40e_vc_send_resp_to_vf 2006 * @vf: pointer to the VF info 2007 * @opcode: operation code 2008 * @retval: return value 2009 * 2010 * send resp msg to VF 2011 **/ 2012 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 2013 enum virtchnl_ops opcode, 2014 int retval) 2015 { 2016 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 2017 } 2018 2019 /** 2020 * i40e_sync_vf_state 2021 * @vf: pointer to the VF info 2022 * @state: VF state 2023 * 2024 * Called from a VF message to synchronize the service with a potential 2025 * VF reset state 2026 **/ 2027 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2028 { 2029 int i; 2030 2031 /* When handling some messages, it needs VF state to be set. 2032 * It is possible that this flag is cleared during VF reset, 2033 * so there is a need to wait until the end of the reset to 2034 * handle the request message correctly. 2035 */ 2036 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2037 if (test_bit(state, &vf->vf_states)) 2038 return true; 2039 usleep_range(10000, 20000); 2040 } 2041 2042 return test_bit(state, &vf->vf_states); 2043 } 2044 2045 /** 2046 * i40e_vc_get_version_msg 2047 * @vf: pointer to the VF info 2048 * @msg: pointer to the msg buffer 2049 * 2050 * called from the VF to request the API version used by the PF 2051 **/ 2052 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2053 { 2054 struct virtchnl_version_info info = { 2055 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2056 }; 2057 2058 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2059 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2060 if (VF_IS_V10(&vf->vf_ver)) 2061 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2062 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2063 0, (u8 *)&info, 2064 sizeof(struct virtchnl_version_info)); 2065 } 2066 2067 /** 2068 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2069 * @vf: pointer to VF structure 2070 **/ 2071 static void i40e_del_qch(struct i40e_vf *vf) 2072 { 2073 struct i40e_pf *pf = vf->pf; 2074 int i; 2075 2076 /* first element in the array belongs to primary VF VSI and we shouldn't 2077 * delete it. We should however delete the rest of the VSIs created 2078 */ 2079 for (i = 1; i < vf->num_tc; i++) { 2080 if (vf->ch[i].vsi_idx) { 2081 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2082 vf->ch[i].vsi_idx = 0; 2083 vf->ch[i].vsi_id = 0; 2084 } 2085 } 2086 } 2087 2088 /** 2089 * i40e_vc_get_max_frame_size 2090 * @vf: pointer to the VF 2091 * 2092 * Max frame size is determined based on the current port's max frame size and 2093 * whether a port VLAN is configured on this VF. The VF is not aware whether 2094 * it's in a port VLAN so the PF needs to account for this in max frame size 2095 * checks and sending the max frame size to the VF. 2096 **/ 2097 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf) 2098 { 2099 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size; 2100 2101 if (vf->port_vlan_id) 2102 max_frame_size -= VLAN_HLEN; 2103 2104 return max_frame_size; 2105 } 2106 2107 /** 2108 * i40e_vc_get_vf_resources_msg 2109 * @vf: pointer to the VF info 2110 * @msg: pointer to the msg buffer 2111 * 2112 * called from the VF to request its resources 2113 **/ 2114 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2115 { 2116 struct virtchnl_vf_resource *vfres = NULL; 2117 struct i40e_pf *pf = vf->pf; 2118 struct i40e_vsi *vsi; 2119 int num_vsis = 1; 2120 int aq_ret = 0; 2121 size_t len = 0; 2122 int ret; 2123 2124 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2125 aq_ret = -EINVAL; 2126 goto err; 2127 } 2128 2129 len = virtchnl_struct_size(vfres, vsi_res, num_vsis); 2130 vfres = kzalloc(len, GFP_KERNEL); 2131 if (!vfres) { 2132 aq_ret = -ENOMEM; 2133 len = 0; 2134 goto err; 2135 } 2136 if (VF_IS_V11(&vf->vf_ver)) 2137 vf->driver_caps = *(u32 *)msg; 2138 else 2139 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2140 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2141 VIRTCHNL_VF_OFFLOAD_VLAN; 2142 2143 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2144 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2145 vsi = pf->vsi[vf->lan_vsi_idx]; 2146 if (!vsi->info.pvid) 2147 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2148 2149 if (i40e_vf_client_capable(pf, vf->vf_id) && 2150 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) { 2151 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA; 2152 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2153 } else { 2154 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states); 2155 } 2156 2157 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2158 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2159 } else { 2160 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) && 2161 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2163 else 2164 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2165 } 2166 2167 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) { 2168 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2169 vfres->vf_cap_flags |= 2170 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2171 } 2172 2173 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2174 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2175 2176 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) && 2177 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2178 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2179 2180 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2181 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 2182 dev_err(&pf->pdev->dev, 2183 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2184 vf->vf_id); 2185 aq_ret = -EINVAL; 2186 goto err; 2187 } 2188 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2189 } 2190 2191 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) { 2192 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2193 vfres->vf_cap_flags |= 2194 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2195 } 2196 2197 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2198 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2199 2200 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2201 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2202 2203 vfres->num_vsis = num_vsis; 2204 vfres->num_queue_pairs = vf->num_queue_pairs; 2205 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2206 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2207 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2208 vfres->max_mtu = i40e_vc_get_max_frame_size(vf); 2209 2210 if (vf->lan_vsi_idx) { 2211 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2212 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2213 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2214 /* VFs only use TC 0 */ 2215 vfres->vsi_res[0].qset_handle 2216 = le16_to_cpu(vsi->info.qs_handle[0]); 2217 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2218 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2219 eth_zero_addr(vf->default_lan_addr.addr); 2220 } 2221 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2222 vf->default_lan_addr.addr); 2223 } 2224 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2225 2226 err: 2227 /* send the response back to the VF */ 2228 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2229 aq_ret, (u8 *)vfres, len); 2230 2231 kfree(vfres); 2232 return ret; 2233 } 2234 2235 /** 2236 * i40e_vc_config_promiscuous_mode_msg 2237 * @vf: pointer to the VF info 2238 * @msg: pointer to the msg buffer 2239 * 2240 * called from the VF to configure the promiscuous mode of 2241 * VF vsis 2242 **/ 2243 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2244 { 2245 struct virtchnl_promisc_info *info = 2246 (struct virtchnl_promisc_info *)msg; 2247 struct i40e_pf *pf = vf->pf; 2248 bool allmulti = false; 2249 bool alluni = false; 2250 int aq_ret = 0; 2251 2252 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2253 aq_ret = -EINVAL; 2254 goto err_out; 2255 } 2256 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2257 dev_err(&pf->pdev->dev, 2258 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2259 vf->vf_id); 2260 2261 /* Lie to the VF on purpose, because this is an error we can 2262 * ignore. Unprivileged VF is not a virtual channel error. 2263 */ 2264 aq_ret = 0; 2265 goto err_out; 2266 } 2267 2268 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2269 aq_ret = -EINVAL; 2270 goto err_out; 2271 } 2272 2273 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2274 aq_ret = -EINVAL; 2275 goto err_out; 2276 } 2277 2278 /* Multicast promiscuous handling*/ 2279 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2280 allmulti = true; 2281 2282 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2283 alluni = true; 2284 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2285 alluni); 2286 if (aq_ret) 2287 goto err_out; 2288 2289 if (allmulti) { 2290 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2291 &vf->vf_states)) 2292 dev_info(&pf->pdev->dev, 2293 "VF %d successfully set multicast promiscuous mode\n", 2294 vf->vf_id); 2295 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2296 &vf->vf_states)) 2297 dev_info(&pf->pdev->dev, 2298 "VF %d successfully unset multicast promiscuous mode\n", 2299 vf->vf_id); 2300 2301 if (alluni) { 2302 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2303 &vf->vf_states)) 2304 dev_info(&pf->pdev->dev, 2305 "VF %d successfully set unicast promiscuous mode\n", 2306 vf->vf_id); 2307 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2308 &vf->vf_states)) 2309 dev_info(&pf->pdev->dev, 2310 "VF %d successfully unset unicast promiscuous mode\n", 2311 vf->vf_id); 2312 2313 err_out: 2314 /* send the response to the VF */ 2315 return i40e_vc_send_resp_to_vf(vf, 2316 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2317 aq_ret); 2318 } 2319 2320 /** 2321 * i40e_vc_config_queues_msg 2322 * @vf: pointer to the VF info 2323 * @msg: pointer to the msg buffer 2324 * 2325 * called from the VF to configure the rx/tx 2326 * queues 2327 **/ 2328 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2329 { 2330 struct virtchnl_vsi_queue_config_info *qci = 2331 (struct virtchnl_vsi_queue_config_info *)msg; 2332 struct virtchnl_queue_pair_info *qpi; 2333 u16 vsi_id, vsi_queue_id = 0; 2334 struct i40e_pf *pf = vf->pf; 2335 int i, j = 0, idx = 0; 2336 struct i40e_vsi *vsi; 2337 u16 num_qps_all = 0; 2338 int aq_ret = 0; 2339 2340 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2341 aq_ret = -EINVAL; 2342 goto error_param; 2343 } 2344 2345 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2346 aq_ret = -EINVAL; 2347 goto error_param; 2348 } 2349 2350 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2351 aq_ret = -EINVAL; 2352 goto error_param; 2353 } 2354 2355 if (vf->adq_enabled) { 2356 for (i = 0; i < vf->num_tc; i++) 2357 num_qps_all += vf->ch[i].num_qps; 2358 if (num_qps_all != qci->num_queue_pairs) { 2359 aq_ret = -EINVAL; 2360 goto error_param; 2361 } 2362 } 2363 2364 vsi_id = qci->vsi_id; 2365 2366 for (i = 0; i < qci->num_queue_pairs; i++) { 2367 qpi = &qci->qpair[i]; 2368 2369 if (!vf->adq_enabled) { 2370 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2371 qpi->txq.queue_id)) { 2372 aq_ret = -EINVAL; 2373 goto error_param; 2374 } 2375 2376 vsi_queue_id = qpi->txq.queue_id; 2377 2378 if (qpi->txq.vsi_id != qci->vsi_id || 2379 qpi->rxq.vsi_id != qci->vsi_id || 2380 qpi->rxq.queue_id != vsi_queue_id) { 2381 aq_ret = -EINVAL; 2382 goto error_param; 2383 } 2384 } 2385 2386 if (vf->adq_enabled) { 2387 if (idx >= ARRAY_SIZE(vf->ch)) { 2388 aq_ret = -ENODEV; 2389 goto error_param; 2390 } 2391 vsi_id = vf->ch[idx].vsi_id; 2392 } 2393 2394 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2395 &qpi->rxq) || 2396 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2397 &qpi->txq)) { 2398 aq_ret = -EINVAL; 2399 goto error_param; 2400 } 2401 2402 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2403 * VF does not know about these additional VSIs and all 2404 * it cares is about its own queues. PF configures these queues 2405 * to its appropriate VSIs based on TC mapping 2406 */ 2407 if (vf->adq_enabled) { 2408 if (idx >= ARRAY_SIZE(vf->ch)) { 2409 aq_ret = -ENODEV; 2410 goto error_param; 2411 } 2412 if (j == (vf->ch[idx].num_qps - 1)) { 2413 idx++; 2414 j = 0; /* resetting the queue count */ 2415 vsi_queue_id = 0; 2416 } else { 2417 j++; 2418 vsi_queue_id++; 2419 } 2420 } 2421 } 2422 /* set vsi num_queue_pairs in use to num configured by VF */ 2423 if (!vf->adq_enabled) { 2424 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2425 qci->num_queue_pairs; 2426 } else { 2427 for (i = 0; i < vf->num_tc; i++) { 2428 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2429 vsi->num_queue_pairs = vf->ch[i].num_qps; 2430 2431 if (i40e_update_adq_vsi_queues(vsi, i)) { 2432 aq_ret = -EIO; 2433 goto error_param; 2434 } 2435 } 2436 } 2437 2438 error_param: 2439 /* send the response to the VF */ 2440 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2441 aq_ret); 2442 } 2443 2444 /** 2445 * i40e_validate_queue_map - check queue map is valid 2446 * @vf: the VF structure pointer 2447 * @vsi_id: vsi id 2448 * @queuemap: Tx or Rx queue map 2449 * 2450 * check if Tx or Rx queue map is valid 2451 **/ 2452 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2453 unsigned long queuemap) 2454 { 2455 u16 vsi_queue_id, queue_id; 2456 2457 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2458 if (vf->adq_enabled) { 2459 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2460 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2461 } else { 2462 queue_id = vsi_queue_id; 2463 } 2464 2465 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2466 return -EINVAL; 2467 } 2468 2469 return 0; 2470 } 2471 2472 /** 2473 * i40e_vc_config_irq_map_msg 2474 * @vf: pointer to the VF info 2475 * @msg: pointer to the msg buffer 2476 * 2477 * called from the VF to configure the irq to 2478 * queue map 2479 **/ 2480 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2481 { 2482 struct virtchnl_irq_map_info *irqmap_info = 2483 (struct virtchnl_irq_map_info *)msg; 2484 struct virtchnl_vector_map *map; 2485 int aq_ret = 0; 2486 u16 vsi_id; 2487 int i; 2488 2489 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2490 aq_ret = -EINVAL; 2491 goto error_param; 2492 } 2493 2494 if (irqmap_info->num_vectors > 2495 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2496 aq_ret = -EINVAL; 2497 goto error_param; 2498 } 2499 2500 for (i = 0; i < irqmap_info->num_vectors; i++) { 2501 map = &irqmap_info->vecmap[i]; 2502 /* validate msg params */ 2503 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2504 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2505 aq_ret = -EINVAL; 2506 goto error_param; 2507 } 2508 vsi_id = map->vsi_id; 2509 2510 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2511 aq_ret = -EINVAL; 2512 goto error_param; 2513 } 2514 2515 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2516 aq_ret = -EINVAL; 2517 goto error_param; 2518 } 2519 2520 i40e_config_irq_link_list(vf, vsi_id, map); 2521 } 2522 error_param: 2523 /* send the response to the VF */ 2524 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2525 aq_ret); 2526 } 2527 2528 /** 2529 * i40e_ctrl_vf_tx_rings 2530 * @vsi: the SRIOV VSI being configured 2531 * @q_map: bit map of the queues to be enabled 2532 * @enable: start or stop the queue 2533 **/ 2534 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2535 bool enable) 2536 { 2537 struct i40e_pf *pf = vsi->back; 2538 int ret = 0; 2539 u16 q_id; 2540 2541 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2542 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2543 vsi->base_queue + q_id, 2544 false /*is xdp*/, enable); 2545 if (ret) 2546 break; 2547 } 2548 return ret; 2549 } 2550 2551 /** 2552 * i40e_ctrl_vf_rx_rings 2553 * @vsi: the SRIOV VSI being configured 2554 * @q_map: bit map of the queues to be enabled 2555 * @enable: start or stop the queue 2556 **/ 2557 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2558 bool enable) 2559 { 2560 struct i40e_pf *pf = vsi->back; 2561 int ret = 0; 2562 u16 q_id; 2563 2564 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2565 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2566 enable); 2567 if (ret) 2568 break; 2569 } 2570 return ret; 2571 } 2572 2573 /** 2574 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2575 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2576 * 2577 * Returns true if validation was successful, else false. 2578 */ 2579 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2580 { 2581 if ((!vqs->rx_queues && !vqs->tx_queues) || 2582 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2583 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2584 return false; 2585 2586 return true; 2587 } 2588 2589 /** 2590 * i40e_vc_enable_queues_msg 2591 * @vf: pointer to the VF info 2592 * @msg: pointer to the msg buffer 2593 * 2594 * called from the VF to enable all or specific queue(s) 2595 **/ 2596 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2597 { 2598 struct virtchnl_queue_select *vqs = 2599 (struct virtchnl_queue_select *)msg; 2600 struct i40e_pf *pf = vf->pf; 2601 int aq_ret = 0; 2602 int i; 2603 2604 if (vf->is_disabled_from_host) { 2605 aq_ret = -EPERM; 2606 dev_info(&pf->pdev->dev, 2607 "Admin has disabled VF %d, will not enable queues\n", 2608 vf->vf_id); 2609 goto error_param; 2610 } 2611 2612 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2613 aq_ret = -EINVAL; 2614 goto error_param; 2615 } 2616 2617 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2618 aq_ret = -EINVAL; 2619 goto error_param; 2620 } 2621 2622 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2623 aq_ret = -EINVAL; 2624 goto error_param; 2625 } 2626 2627 /* Use the queue bit map sent by the VF */ 2628 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2629 true)) { 2630 aq_ret = -EIO; 2631 goto error_param; 2632 } 2633 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2634 true)) { 2635 aq_ret = -EIO; 2636 goto error_param; 2637 } 2638 2639 /* need to start the rings for additional ADq VSI's as well */ 2640 if (vf->adq_enabled) { 2641 /* zero belongs to LAN VSI */ 2642 for (i = 1; i < vf->num_tc; i++) { 2643 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2644 aq_ret = -EIO; 2645 } 2646 } 2647 2648 error_param: 2649 /* send the response to the VF */ 2650 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2651 aq_ret); 2652 } 2653 2654 /** 2655 * i40e_vc_disable_queues_msg 2656 * @vf: pointer to the VF info 2657 * @msg: pointer to the msg buffer 2658 * 2659 * called from the VF to disable all or specific 2660 * queue(s) 2661 **/ 2662 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2663 { 2664 struct virtchnl_queue_select *vqs = 2665 (struct virtchnl_queue_select *)msg; 2666 struct i40e_pf *pf = vf->pf; 2667 int aq_ret = 0; 2668 2669 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2670 aq_ret = -EINVAL; 2671 goto error_param; 2672 } 2673 2674 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2675 aq_ret = -EINVAL; 2676 goto error_param; 2677 } 2678 2679 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2680 aq_ret = -EINVAL; 2681 goto error_param; 2682 } 2683 2684 /* Use the queue bit map sent by the VF */ 2685 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2686 false)) { 2687 aq_ret = -EIO; 2688 goto error_param; 2689 } 2690 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2691 false)) { 2692 aq_ret = -EIO; 2693 goto error_param; 2694 } 2695 error_param: 2696 /* send the response to the VF */ 2697 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2698 aq_ret); 2699 } 2700 2701 /** 2702 * i40e_check_enough_queue - find big enough queue number 2703 * @vf: pointer to the VF info 2704 * @needed: the number of items needed 2705 * 2706 * Returns the base item index of the queue, or negative for error 2707 **/ 2708 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2709 { 2710 unsigned int i, cur_queues, more, pool_size; 2711 struct i40e_lump_tracking *pile; 2712 struct i40e_pf *pf = vf->pf; 2713 struct i40e_vsi *vsi; 2714 2715 vsi = pf->vsi[vf->lan_vsi_idx]; 2716 cur_queues = vsi->alloc_queue_pairs; 2717 2718 /* if current allocated queues are enough for need */ 2719 if (cur_queues >= needed) 2720 return vsi->base_queue; 2721 2722 pile = pf->qp_pile; 2723 if (cur_queues > 0) { 2724 /* if the allocated queues are not zero 2725 * just check if there are enough queues for more 2726 * behind the allocated queues. 2727 */ 2728 more = needed - cur_queues; 2729 for (i = vsi->base_queue + cur_queues; 2730 i < pile->num_entries; i++) { 2731 if (pile->list[i] & I40E_PILE_VALID_BIT) 2732 break; 2733 2734 if (more-- == 1) 2735 /* there is enough */ 2736 return vsi->base_queue; 2737 } 2738 } 2739 2740 pool_size = 0; 2741 for (i = 0; i < pile->num_entries; i++) { 2742 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2743 pool_size = 0; 2744 continue; 2745 } 2746 if (needed <= ++pool_size) 2747 /* there is enough */ 2748 return i; 2749 } 2750 2751 return -ENOMEM; 2752 } 2753 2754 /** 2755 * i40e_vc_request_queues_msg 2756 * @vf: pointer to the VF info 2757 * @msg: pointer to the msg buffer 2758 * 2759 * VFs get a default number of queues but can use this message to request a 2760 * different number. If the request is successful, PF will reset the VF and 2761 * return 0. If unsuccessful, PF will send message informing VF of number of 2762 * available queues and return result of sending VF a message. 2763 **/ 2764 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2765 { 2766 struct virtchnl_vf_res_request *vfres = 2767 (struct virtchnl_vf_res_request *)msg; 2768 u16 req_pairs = vfres->num_queue_pairs; 2769 u8 cur_pairs = vf->num_queue_pairs; 2770 struct i40e_pf *pf = vf->pf; 2771 2772 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2773 return -EINVAL; 2774 2775 if (req_pairs > I40E_MAX_VF_QUEUES) { 2776 dev_err(&pf->pdev->dev, 2777 "VF %d tried to request more than %d queues.\n", 2778 vf->vf_id, 2779 I40E_MAX_VF_QUEUES); 2780 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2781 } else if (req_pairs - cur_pairs > pf->queues_left) { 2782 dev_warn(&pf->pdev->dev, 2783 "VF %d requested %d more queues, but only %d left.\n", 2784 vf->vf_id, 2785 req_pairs - cur_pairs, 2786 pf->queues_left); 2787 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2788 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2789 dev_warn(&pf->pdev->dev, 2790 "VF %d requested %d more queues, but there is not enough for it.\n", 2791 vf->vf_id, 2792 req_pairs - cur_pairs); 2793 vfres->num_queue_pairs = cur_pairs; 2794 } else { 2795 /* successful request */ 2796 vf->num_req_queues = req_pairs; 2797 i40e_vc_reset_vf(vf, true); 2798 return 0; 2799 } 2800 2801 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2802 (u8 *)vfres, sizeof(*vfres)); 2803 } 2804 2805 /** 2806 * i40e_vc_get_stats_msg 2807 * @vf: pointer to the VF info 2808 * @msg: pointer to the msg buffer 2809 * 2810 * called from the VF to get vsi stats 2811 **/ 2812 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2813 { 2814 struct virtchnl_queue_select *vqs = 2815 (struct virtchnl_queue_select *)msg; 2816 struct i40e_pf *pf = vf->pf; 2817 struct i40e_eth_stats stats; 2818 int aq_ret = 0; 2819 struct i40e_vsi *vsi; 2820 2821 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2822 2823 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2824 aq_ret = -EINVAL; 2825 goto error_param; 2826 } 2827 2828 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2829 aq_ret = -EINVAL; 2830 goto error_param; 2831 } 2832 2833 vsi = pf->vsi[vf->lan_vsi_idx]; 2834 if (!vsi) { 2835 aq_ret = -EINVAL; 2836 goto error_param; 2837 } 2838 i40e_update_eth_stats(vsi); 2839 stats = vsi->eth_stats; 2840 2841 error_param: 2842 /* send the response back to the VF */ 2843 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2844 (u8 *)&stats, sizeof(stats)); 2845 } 2846 2847 /** 2848 * i40e_can_vf_change_mac 2849 * @vf: pointer to the VF info 2850 * 2851 * Return true if the VF is allowed to change its MAC filters, false otherwise 2852 */ 2853 static bool i40e_can_vf_change_mac(struct i40e_vf *vf) 2854 { 2855 /* If the VF MAC address has been set administratively (via the 2856 * ndo_set_vf_mac command), then deny permission to the VF to 2857 * add/delete unicast MAC addresses, unless the VF is trusted 2858 */ 2859 if (vf->pf_set_mac && !vf->trusted) 2860 return false; 2861 2862 return true; 2863 } 2864 2865 #define I40E_MAX_MACVLAN_PER_HW 3072 2866 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2867 (num_ports)) 2868 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2869 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2870 */ 2871 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2872 #define I40E_VC_MAX_VLAN_PER_VF 16 2873 2874 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2875 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2876 typeof(num_ports) num_ports_ = (num_ports); \ 2877 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2878 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2879 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2880 /** 2881 * i40e_check_vf_permission 2882 * @vf: pointer to the VF info 2883 * @al: MAC address list from virtchnl 2884 * 2885 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2886 * if any address in the list is not valid. Checks the following conditions: 2887 * 2888 * 1) broadcast and zero addresses are never valid 2889 * 2) unicast addresses are not allowed if the VMM has administratively set 2890 * the VF MAC address, unless the VF is marked as privileged. 2891 * 3) There is enough space to add all the addresses. 2892 * 2893 * Note that to guarantee consistency, it is expected this function be called 2894 * while holding the mac_filter_hash_lock, as otherwise the current number of 2895 * addresses might not be accurate. 2896 **/ 2897 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2898 struct virtchnl_ether_addr_list *al) 2899 { 2900 struct i40e_pf *pf = vf->pf; 2901 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2902 struct i40e_hw *hw = &pf->hw; 2903 int mac2add_cnt = 0; 2904 int i; 2905 2906 for (i = 0; i < al->num_elements; i++) { 2907 struct i40e_mac_filter *f; 2908 u8 *addr = al->list[i].addr; 2909 2910 if (is_broadcast_ether_addr(addr) || 2911 is_zero_ether_addr(addr)) { 2912 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2913 addr); 2914 return -EINVAL; 2915 } 2916 2917 /* If the host VMM administrator has set the VF MAC address 2918 * administratively via the ndo_set_vf_mac command then deny 2919 * permission to the VF to add or delete unicast MAC addresses. 2920 * Unless the VF is privileged and then it can do whatever. 2921 * The VF may request to set the MAC address filter already 2922 * assigned to it so do not return an error in that case. 2923 */ 2924 if (!i40e_can_vf_change_mac(vf) && 2925 !is_multicast_ether_addr(addr) && 2926 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2927 dev_err(&pf->pdev->dev, 2928 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2929 return -EPERM; 2930 } 2931 2932 /*count filters that really will be added*/ 2933 f = i40e_find_mac(vsi, addr); 2934 if (!f) 2935 ++mac2add_cnt; 2936 } 2937 2938 /* If this VF is not privileged, then we can't add more than a limited 2939 * number of addresses. Check to make sure that the additions do not 2940 * push us over the limit. 2941 */ 2942 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2943 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2944 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2945 dev_err(&pf->pdev->dev, 2946 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2947 return -EPERM; 2948 } 2949 /* If this VF is trusted, it can use more resources than untrusted. 2950 * However to ensure that every trusted VF has appropriate number of 2951 * resources, divide whole pool of resources per port and then across 2952 * all VFs. 2953 */ 2954 } else { 2955 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2956 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2957 hw->num_ports)) { 2958 dev_err(&pf->pdev->dev, 2959 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2960 return -EPERM; 2961 } 2962 } 2963 return 0; 2964 } 2965 2966 /** 2967 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr 2968 * @vc_ether_addr: used to extract the type 2969 **/ 2970 static u8 2971 i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr) 2972 { 2973 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK; 2974 } 2975 2976 /** 2977 * i40e_is_vc_addr_legacy 2978 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2979 * 2980 * check if the MAC address is from an older VF 2981 **/ 2982 static bool 2983 i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr) 2984 { 2985 return i40e_vc_ether_addr_type(vc_ether_addr) == 2986 VIRTCHNL_ETHER_ADDR_LEGACY; 2987 } 2988 2989 /** 2990 * i40e_is_vc_addr_primary 2991 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type 2992 * 2993 * check if the MAC address is the VF's primary MAC 2994 * This function should only be called when the MAC address in 2995 * virtchnl_ether_addr is a valid unicast MAC 2996 **/ 2997 static bool 2998 i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr) 2999 { 3000 return i40e_vc_ether_addr_type(vc_ether_addr) == 3001 VIRTCHNL_ETHER_ADDR_PRIMARY; 3002 } 3003 3004 /** 3005 * i40e_update_vf_mac_addr 3006 * @vf: VF to update 3007 * @vc_ether_addr: structure from VIRTCHNL with MAC to add 3008 * 3009 * update the VF's cached hardware MAC if allowed 3010 **/ 3011 static void 3012 i40e_update_vf_mac_addr(struct i40e_vf *vf, 3013 struct virtchnl_ether_addr *vc_ether_addr) 3014 { 3015 u8 *mac_addr = vc_ether_addr->addr; 3016 3017 if (!is_valid_ether_addr(mac_addr)) 3018 return; 3019 3020 /* If request to add MAC filter is a primary request update its default 3021 * MAC address with the requested one. If it is a legacy request then 3022 * check if current default is empty if so update the default MAC 3023 */ 3024 if (i40e_is_vc_addr_primary(vc_ether_addr)) { 3025 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3026 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) { 3027 if (is_zero_ether_addr(vf->default_lan_addr.addr)) 3028 ether_addr_copy(vf->default_lan_addr.addr, mac_addr); 3029 } 3030 } 3031 3032 /** 3033 * i40e_vc_add_mac_addr_msg 3034 * @vf: pointer to the VF info 3035 * @msg: pointer to the msg buffer 3036 * 3037 * add guest mac address filter 3038 **/ 3039 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3040 { 3041 struct virtchnl_ether_addr_list *al = 3042 (struct virtchnl_ether_addr_list *)msg; 3043 struct i40e_pf *pf = vf->pf; 3044 struct i40e_vsi *vsi = NULL; 3045 int ret = 0; 3046 int i; 3047 3048 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3049 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3050 ret = -EINVAL; 3051 goto error_param; 3052 } 3053 3054 vsi = pf->vsi[vf->lan_vsi_idx]; 3055 3056 /* Lock once, because all function inside for loop accesses VSI's 3057 * MAC filter list which needs to be protected using same lock. 3058 */ 3059 spin_lock_bh(&vsi->mac_filter_hash_lock); 3060 3061 ret = i40e_check_vf_permission(vf, al); 3062 if (ret) { 3063 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3064 goto error_param; 3065 } 3066 3067 /* add new addresses to the list */ 3068 for (i = 0; i < al->num_elements; i++) { 3069 struct i40e_mac_filter *f; 3070 3071 f = i40e_find_mac(vsi, al->list[i].addr); 3072 if (!f) { 3073 f = i40e_add_mac_filter(vsi, al->list[i].addr); 3074 3075 if (!f) { 3076 dev_err(&pf->pdev->dev, 3077 "Unable to add MAC filter %pM for VF %d\n", 3078 al->list[i].addr, vf->vf_id); 3079 ret = -EINVAL; 3080 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3081 goto error_param; 3082 } 3083 } 3084 i40e_update_vf_mac_addr(vf, &al->list[i]); 3085 } 3086 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3087 3088 /* program the updated filter list */ 3089 ret = i40e_sync_vsi_filters(vsi); 3090 if (ret) 3091 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3092 vf->vf_id, ret); 3093 3094 error_param: 3095 /* send the response to the VF */ 3096 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 3097 ret, NULL, 0); 3098 } 3099 3100 /** 3101 * i40e_vc_del_mac_addr_msg 3102 * @vf: pointer to the VF info 3103 * @msg: pointer to the msg buffer 3104 * 3105 * remove guest mac address filter 3106 **/ 3107 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 3108 { 3109 struct virtchnl_ether_addr_list *al = 3110 (struct virtchnl_ether_addr_list *)msg; 3111 bool was_unimac_deleted = false; 3112 struct i40e_pf *pf = vf->pf; 3113 struct i40e_vsi *vsi = NULL; 3114 int ret = 0; 3115 int i; 3116 3117 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3118 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3119 ret = -EINVAL; 3120 goto error_param; 3121 } 3122 3123 for (i = 0; i < al->num_elements; i++) { 3124 if (is_broadcast_ether_addr(al->list[i].addr) || 3125 is_zero_ether_addr(al->list[i].addr)) { 3126 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3127 al->list[i].addr, vf->vf_id); 3128 ret = -EINVAL; 3129 goto error_param; 3130 } 3131 } 3132 vsi = pf->vsi[vf->lan_vsi_idx]; 3133 3134 spin_lock_bh(&vsi->mac_filter_hash_lock); 3135 /* delete addresses from the list */ 3136 for (i = 0; i < al->num_elements; i++) { 3137 const u8 *addr = al->list[i].addr; 3138 3139 /* Allow to delete VF primary MAC only if it was not set 3140 * administratively by PF or if VF is trusted. 3141 */ 3142 if (ether_addr_equal(addr, vf->default_lan_addr.addr) && 3143 i40e_can_vf_change_mac(vf)) 3144 was_unimac_deleted = true; 3145 else 3146 continue; 3147 3148 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3149 ret = -EINVAL; 3150 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3151 goto error_param; 3152 } 3153 } 3154 3155 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3156 3157 if (was_unimac_deleted) 3158 eth_zero_addr(vf->default_lan_addr.addr); 3159 3160 /* program the updated filter list */ 3161 ret = i40e_sync_vsi_filters(vsi); 3162 if (ret) 3163 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3164 vf->vf_id, ret); 3165 3166 if (vf->trusted && was_unimac_deleted) { 3167 struct i40e_mac_filter *f; 3168 struct hlist_node *h; 3169 u8 *macaddr = NULL; 3170 int bkt; 3171 3172 /* set last unicast mac address as default */ 3173 spin_lock_bh(&vsi->mac_filter_hash_lock); 3174 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3175 if (is_valid_ether_addr(f->macaddr)) 3176 macaddr = f->macaddr; 3177 } 3178 if (macaddr) 3179 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3180 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3181 } 3182 error_param: 3183 /* send the response to the VF */ 3184 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3185 } 3186 3187 /** 3188 * i40e_vc_add_vlan_msg 3189 * @vf: pointer to the VF info 3190 * @msg: pointer to the msg buffer 3191 * 3192 * program guest vlan id 3193 **/ 3194 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3195 { 3196 struct virtchnl_vlan_filter_list *vfl = 3197 (struct virtchnl_vlan_filter_list *)msg; 3198 struct i40e_pf *pf = vf->pf; 3199 struct i40e_vsi *vsi = NULL; 3200 int aq_ret = 0; 3201 int i; 3202 3203 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3204 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3205 dev_err(&pf->pdev->dev, 3206 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3207 goto error_param; 3208 } 3209 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3210 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3211 aq_ret = -EINVAL; 3212 goto error_param; 3213 } 3214 3215 for (i = 0; i < vfl->num_elements; i++) { 3216 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3217 aq_ret = -EINVAL; 3218 dev_err(&pf->pdev->dev, 3219 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3220 goto error_param; 3221 } 3222 } 3223 vsi = pf->vsi[vf->lan_vsi_idx]; 3224 if (vsi->info.pvid) { 3225 aq_ret = -EINVAL; 3226 goto error_param; 3227 } 3228 3229 i40e_vlan_stripping_enable(vsi); 3230 for (i = 0; i < vfl->num_elements; i++) { 3231 /* add new VLAN filter */ 3232 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3233 if (!ret) 3234 vf->num_vlan++; 3235 3236 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3237 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3238 true, 3239 vfl->vlan_id[i], 3240 NULL); 3241 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3242 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3243 true, 3244 vfl->vlan_id[i], 3245 NULL); 3246 3247 if (ret) 3248 dev_err(&pf->pdev->dev, 3249 "Unable to add VLAN filter %d for VF %d, error %d\n", 3250 vfl->vlan_id[i], vf->vf_id, ret); 3251 } 3252 3253 error_param: 3254 /* send the response to the VF */ 3255 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3256 } 3257 3258 /** 3259 * i40e_vc_remove_vlan_msg 3260 * @vf: pointer to the VF info 3261 * @msg: pointer to the msg buffer 3262 * 3263 * remove programmed guest vlan id 3264 **/ 3265 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3266 { 3267 struct virtchnl_vlan_filter_list *vfl = 3268 (struct virtchnl_vlan_filter_list *)msg; 3269 struct i40e_pf *pf = vf->pf; 3270 struct i40e_vsi *vsi = NULL; 3271 int aq_ret = 0; 3272 int i; 3273 3274 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3275 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3276 aq_ret = -EINVAL; 3277 goto error_param; 3278 } 3279 3280 for (i = 0; i < vfl->num_elements; i++) { 3281 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3282 aq_ret = -EINVAL; 3283 goto error_param; 3284 } 3285 } 3286 3287 vsi = pf->vsi[vf->lan_vsi_idx]; 3288 if (vsi->info.pvid) { 3289 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3290 aq_ret = -EINVAL; 3291 goto error_param; 3292 } 3293 3294 for (i = 0; i < vfl->num_elements; i++) { 3295 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3296 vf->num_vlan--; 3297 3298 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3299 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3300 false, 3301 vfl->vlan_id[i], 3302 NULL); 3303 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3304 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3305 false, 3306 vfl->vlan_id[i], 3307 NULL); 3308 } 3309 3310 error_param: 3311 /* send the response to the VF */ 3312 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3313 } 3314 3315 /** 3316 * i40e_vc_rdma_msg 3317 * @vf: pointer to the VF info 3318 * @msg: pointer to the msg buffer 3319 * @msglen: msg length 3320 * 3321 * called from the VF for the iwarp msgs 3322 **/ 3323 static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3324 { 3325 struct i40e_pf *pf = vf->pf; 3326 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3327 int aq_ret = 0; 3328 3329 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3330 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3331 aq_ret = -EINVAL; 3332 goto error_param; 3333 } 3334 3335 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3336 msg, msglen); 3337 3338 error_param: 3339 /* send the response to the VF */ 3340 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA, 3341 aq_ret); 3342 } 3343 3344 /** 3345 * i40e_vc_rdma_qvmap_msg 3346 * @vf: pointer to the VF info 3347 * @msg: pointer to the msg buffer 3348 * @config: config qvmap or release it 3349 * 3350 * called from the VF for the iwarp msgs 3351 **/ 3352 static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3353 { 3354 struct virtchnl_rdma_qvlist_info *qvlist_info = 3355 (struct virtchnl_rdma_qvlist_info *)msg; 3356 int aq_ret = 0; 3357 3358 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3359 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) { 3360 aq_ret = -EINVAL; 3361 goto error_param; 3362 } 3363 3364 if (config) { 3365 if (i40e_config_rdma_qvlist(vf, qvlist_info)) 3366 aq_ret = -EINVAL; 3367 } else { 3368 i40e_release_rdma_qvlist(vf); 3369 } 3370 3371 error_param: 3372 /* send the response to the VF */ 3373 return i40e_vc_send_resp_to_vf(vf, 3374 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP : 3375 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP, 3376 aq_ret); 3377 } 3378 3379 /** 3380 * i40e_vc_config_rss_key 3381 * @vf: pointer to the VF info 3382 * @msg: pointer to the msg buffer 3383 * 3384 * Configure the VF's RSS key 3385 **/ 3386 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3387 { 3388 struct virtchnl_rss_key *vrk = 3389 (struct virtchnl_rss_key *)msg; 3390 struct i40e_pf *pf = vf->pf; 3391 struct i40e_vsi *vsi = NULL; 3392 int aq_ret = 0; 3393 3394 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3395 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3396 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3397 aq_ret = -EINVAL; 3398 goto err; 3399 } 3400 3401 vsi = pf->vsi[vf->lan_vsi_idx]; 3402 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3403 err: 3404 /* send the response to the VF */ 3405 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3406 aq_ret); 3407 } 3408 3409 /** 3410 * i40e_vc_config_rss_lut 3411 * @vf: pointer to the VF info 3412 * @msg: pointer to the msg buffer 3413 * 3414 * Configure the VF's RSS LUT 3415 **/ 3416 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3417 { 3418 struct virtchnl_rss_lut *vrl = 3419 (struct virtchnl_rss_lut *)msg; 3420 struct i40e_pf *pf = vf->pf; 3421 struct i40e_vsi *vsi = NULL; 3422 int aq_ret = 0; 3423 u16 i; 3424 3425 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3426 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3427 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3428 aq_ret = -EINVAL; 3429 goto err; 3430 } 3431 3432 for (i = 0; i < vrl->lut_entries; i++) 3433 if (vrl->lut[i] >= vf->num_queue_pairs) { 3434 aq_ret = -EINVAL; 3435 goto err; 3436 } 3437 3438 vsi = pf->vsi[vf->lan_vsi_idx]; 3439 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3440 /* send the response to the VF */ 3441 err: 3442 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3443 aq_ret); 3444 } 3445 3446 /** 3447 * i40e_vc_get_rss_hena 3448 * @vf: pointer to the VF info 3449 * @msg: pointer to the msg buffer 3450 * 3451 * Return the RSS HENA bits allowed by the hardware 3452 **/ 3453 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3454 { 3455 struct virtchnl_rss_hena *vrh = NULL; 3456 struct i40e_pf *pf = vf->pf; 3457 int aq_ret = 0; 3458 int len = 0; 3459 3460 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3461 aq_ret = -EINVAL; 3462 goto err; 3463 } 3464 len = sizeof(struct virtchnl_rss_hena); 3465 3466 vrh = kzalloc(len, GFP_KERNEL); 3467 if (!vrh) { 3468 aq_ret = -ENOMEM; 3469 len = 0; 3470 goto err; 3471 } 3472 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3473 err: 3474 /* send the response back to the VF */ 3475 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3476 aq_ret, (u8 *)vrh, len); 3477 kfree(vrh); 3478 return aq_ret; 3479 } 3480 3481 /** 3482 * i40e_vc_set_rss_hena 3483 * @vf: pointer to the VF info 3484 * @msg: pointer to the msg buffer 3485 * 3486 * Set the RSS HENA bits for the VF 3487 **/ 3488 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3489 { 3490 struct virtchnl_rss_hena *vrh = 3491 (struct virtchnl_rss_hena *)msg; 3492 struct i40e_pf *pf = vf->pf; 3493 struct i40e_hw *hw = &pf->hw; 3494 int aq_ret = 0; 3495 3496 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3497 aq_ret = -EINVAL; 3498 goto err; 3499 } 3500 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3501 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3502 (u32)(vrh->hena >> 32)); 3503 3504 /* send the response to the VF */ 3505 err: 3506 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3507 } 3508 3509 /** 3510 * i40e_vc_enable_vlan_stripping 3511 * @vf: pointer to the VF info 3512 * @msg: pointer to the msg buffer 3513 * 3514 * Enable vlan header stripping for the VF 3515 **/ 3516 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3517 { 3518 struct i40e_vsi *vsi; 3519 int aq_ret = 0; 3520 3521 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3522 aq_ret = -EINVAL; 3523 goto err; 3524 } 3525 3526 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3527 i40e_vlan_stripping_enable(vsi); 3528 3529 /* send the response to the VF */ 3530 err: 3531 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3532 aq_ret); 3533 } 3534 3535 /** 3536 * i40e_vc_disable_vlan_stripping 3537 * @vf: pointer to the VF info 3538 * @msg: pointer to the msg buffer 3539 * 3540 * Disable vlan header stripping for the VF 3541 **/ 3542 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3543 { 3544 struct i40e_vsi *vsi; 3545 int aq_ret = 0; 3546 3547 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3548 aq_ret = -EINVAL; 3549 goto err; 3550 } 3551 3552 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3553 i40e_vlan_stripping_disable(vsi); 3554 3555 /* send the response to the VF */ 3556 err: 3557 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3558 aq_ret); 3559 } 3560 3561 /** 3562 * i40e_validate_cloud_filter 3563 * @vf: pointer to VF structure 3564 * @tc_filter: pointer to filter requested 3565 * 3566 * This function validates cloud filter programmed as TC filter for ADq 3567 **/ 3568 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3569 struct virtchnl_filter *tc_filter) 3570 { 3571 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3572 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3573 struct i40e_pf *pf = vf->pf; 3574 struct i40e_vsi *vsi = NULL; 3575 struct i40e_mac_filter *f; 3576 struct hlist_node *h; 3577 bool found = false; 3578 int bkt; 3579 3580 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) { 3581 dev_info(&pf->pdev->dev, 3582 "VF %d: ADQ doesn't support this action (%d)\n", 3583 vf->vf_id, tc_filter->action); 3584 goto err; 3585 } 3586 3587 /* action_meta is TC number here to which the filter is applied */ 3588 if (!tc_filter->action_meta || 3589 tc_filter->action_meta > vf->num_tc) { 3590 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3591 vf->vf_id, tc_filter->action_meta); 3592 goto err; 3593 } 3594 3595 /* Check filter if it's programmed for advanced mode or basic mode. 3596 * There are two ADq modes (for VF only), 3597 * 1. Basic mode: intended to allow as many filter options as possible 3598 * to be added to a VF in Non-trusted mode. Main goal is 3599 * to add filters to its own MAC and VLAN id. 3600 * 2. Advanced mode: is for allowing filters to be applied other than 3601 * its own MAC or VLAN. This mode requires the VF to be 3602 * Trusted. 3603 */ 3604 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3605 vsi = pf->vsi[vf->lan_vsi_idx]; 3606 f = i40e_find_mac(vsi, data.dst_mac); 3607 3608 if (!f) { 3609 dev_info(&pf->pdev->dev, 3610 "Destination MAC %pM doesn't belong to VF %d\n", 3611 data.dst_mac, vf->vf_id); 3612 goto err; 3613 } 3614 3615 if (mask.vlan_id) { 3616 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3617 hlist) { 3618 if (f->vlan == ntohs(data.vlan_id)) { 3619 found = true; 3620 break; 3621 } 3622 } 3623 if (!found) { 3624 dev_info(&pf->pdev->dev, 3625 "VF %d doesn't have any VLAN id %u\n", 3626 vf->vf_id, ntohs(data.vlan_id)); 3627 goto err; 3628 } 3629 } 3630 } else { 3631 /* Check if VF is trusted */ 3632 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3633 dev_err(&pf->pdev->dev, 3634 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3635 vf->vf_id); 3636 return -EIO; 3637 } 3638 } 3639 3640 if (mask.dst_mac[0] & data.dst_mac[0]) { 3641 if (is_broadcast_ether_addr(data.dst_mac) || 3642 is_zero_ether_addr(data.dst_mac)) { 3643 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3644 vf->vf_id, data.dst_mac); 3645 goto err; 3646 } 3647 } 3648 3649 if (mask.src_mac[0] & data.src_mac[0]) { 3650 if (is_broadcast_ether_addr(data.src_mac) || 3651 is_zero_ether_addr(data.src_mac)) { 3652 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3653 vf->vf_id, data.src_mac); 3654 goto err; 3655 } 3656 } 3657 3658 if (mask.dst_port & data.dst_port) { 3659 if (!data.dst_port) { 3660 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3661 vf->vf_id); 3662 goto err; 3663 } 3664 } 3665 3666 if (mask.src_port & data.src_port) { 3667 if (!data.src_port) { 3668 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3669 vf->vf_id); 3670 goto err; 3671 } 3672 } 3673 3674 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3675 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3676 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3677 vf->vf_id); 3678 goto err; 3679 } 3680 3681 if (mask.vlan_id & data.vlan_id) { 3682 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3683 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3684 vf->vf_id); 3685 goto err; 3686 } 3687 } 3688 3689 return 0; 3690 err: 3691 return -EIO; 3692 } 3693 3694 /** 3695 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3696 * @vf: pointer to the VF info 3697 * @seid: seid of the vsi it is searching for 3698 **/ 3699 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3700 { 3701 struct i40e_pf *pf = vf->pf; 3702 struct i40e_vsi *vsi = NULL; 3703 int i; 3704 3705 for (i = 0; i < vf->num_tc ; i++) { 3706 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3707 if (vsi && vsi->seid == seid) 3708 return vsi; 3709 } 3710 return NULL; 3711 } 3712 3713 /** 3714 * i40e_del_all_cloud_filters 3715 * @vf: pointer to the VF info 3716 * 3717 * This function deletes all cloud filters 3718 **/ 3719 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3720 { 3721 struct i40e_cloud_filter *cfilter = NULL; 3722 struct i40e_pf *pf = vf->pf; 3723 struct i40e_vsi *vsi = NULL; 3724 struct hlist_node *node; 3725 int ret; 3726 3727 hlist_for_each_entry_safe(cfilter, node, 3728 &vf->cloud_filter_list, cloud_node) { 3729 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3730 3731 if (!vsi) { 3732 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3733 vf->vf_id, cfilter->seid); 3734 continue; 3735 } 3736 3737 if (cfilter->dst_port) 3738 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3739 false); 3740 else 3741 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3742 if (ret) 3743 dev_err(&pf->pdev->dev, 3744 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3745 vf->vf_id, ERR_PTR(ret), 3746 i40e_aq_str(&pf->hw, 3747 pf->hw.aq.asq_last_status)); 3748 3749 hlist_del(&cfilter->cloud_node); 3750 kfree(cfilter); 3751 vf->num_cloud_filters--; 3752 } 3753 } 3754 3755 /** 3756 * i40e_vc_del_cloud_filter 3757 * @vf: pointer to the VF info 3758 * @msg: pointer to the msg buffer 3759 * 3760 * This function deletes a cloud filter programmed as TC filter for ADq 3761 **/ 3762 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3763 { 3764 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3765 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3766 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3767 struct i40e_cloud_filter cfilter, *cf = NULL; 3768 struct i40e_pf *pf = vf->pf; 3769 struct i40e_vsi *vsi = NULL; 3770 struct hlist_node *node; 3771 int aq_ret = 0; 3772 int i, ret; 3773 3774 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3775 aq_ret = -EINVAL; 3776 goto err; 3777 } 3778 3779 if (!vf->adq_enabled) { 3780 dev_info(&pf->pdev->dev, 3781 "VF %d: ADq not enabled, can't apply cloud filter\n", 3782 vf->vf_id); 3783 aq_ret = -EINVAL; 3784 goto err; 3785 } 3786 3787 if (i40e_validate_cloud_filter(vf, vcf)) { 3788 dev_info(&pf->pdev->dev, 3789 "VF %d: Invalid input, can't apply cloud filter\n", 3790 vf->vf_id); 3791 aq_ret = -EINVAL; 3792 goto err; 3793 } 3794 3795 memset(&cfilter, 0, sizeof(cfilter)); 3796 /* parse destination mac address */ 3797 for (i = 0; i < ETH_ALEN; i++) 3798 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3799 3800 /* parse source mac address */ 3801 for (i = 0; i < ETH_ALEN; i++) 3802 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3803 3804 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3805 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3806 cfilter.src_port = mask.src_port & tcf.src_port; 3807 3808 switch (vcf->flow_type) { 3809 case VIRTCHNL_TCP_V4_FLOW: 3810 cfilter.n_proto = ETH_P_IP; 3811 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3812 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3813 ARRAY_SIZE(tcf.dst_ip)); 3814 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3815 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3816 ARRAY_SIZE(tcf.dst_ip)); 3817 break; 3818 case VIRTCHNL_TCP_V6_FLOW: 3819 cfilter.n_proto = ETH_P_IPV6; 3820 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3821 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3822 sizeof(cfilter.ip.v6.dst_ip6)); 3823 if (mask.src_ip[3] & tcf.src_ip[3]) 3824 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3825 sizeof(cfilter.ip.v6.src_ip6)); 3826 break; 3827 default: 3828 /* TC filter can be configured based on different combinations 3829 * and in this case IP is not a part of filter config 3830 */ 3831 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3832 vf->vf_id); 3833 } 3834 3835 /* get the vsi to which the tc belongs to */ 3836 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3837 cfilter.seid = vsi->seid; 3838 cfilter.flags = vcf->field_flags; 3839 3840 /* Deleting TC filter */ 3841 if (tcf.dst_port) 3842 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3843 else 3844 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3845 if (ret) { 3846 dev_err(&pf->pdev->dev, 3847 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n", 3848 vf->vf_id, ERR_PTR(ret), 3849 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3850 goto err; 3851 } 3852 3853 hlist_for_each_entry_safe(cf, node, 3854 &vf->cloud_filter_list, cloud_node) { 3855 if (cf->seid != cfilter.seid) 3856 continue; 3857 if (mask.dst_port) 3858 if (cfilter.dst_port != cf->dst_port) 3859 continue; 3860 if (mask.dst_mac[0]) 3861 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3862 continue; 3863 /* for ipv4 data to be valid, only first byte of mask is set */ 3864 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3865 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3866 ARRAY_SIZE(tcf.dst_ip))) 3867 continue; 3868 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3869 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3870 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3871 sizeof(cfilter.ip.v6.src_ip6))) 3872 continue; 3873 if (mask.vlan_id) 3874 if (cfilter.vlan_id != cf->vlan_id) 3875 continue; 3876 3877 hlist_del(&cf->cloud_node); 3878 kfree(cf); 3879 vf->num_cloud_filters--; 3880 } 3881 3882 err: 3883 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3884 aq_ret); 3885 } 3886 3887 /** 3888 * i40e_vc_add_cloud_filter 3889 * @vf: pointer to the VF info 3890 * @msg: pointer to the msg buffer 3891 * 3892 * This function adds a cloud filter programmed as TC filter for ADq 3893 **/ 3894 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3895 { 3896 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3897 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3898 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3899 struct i40e_cloud_filter *cfilter = NULL; 3900 struct i40e_pf *pf = vf->pf; 3901 struct i40e_vsi *vsi = NULL; 3902 int aq_ret = 0; 3903 int i; 3904 3905 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3906 aq_ret = -EINVAL; 3907 goto err_out; 3908 } 3909 3910 if (!vf->adq_enabled) { 3911 dev_info(&pf->pdev->dev, 3912 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3913 vf->vf_id); 3914 aq_ret = -EINVAL; 3915 goto err_out; 3916 } 3917 3918 if (i40e_validate_cloud_filter(vf, vcf)) { 3919 dev_info(&pf->pdev->dev, 3920 "VF %d: Invalid input/s, can't apply cloud filter\n", 3921 vf->vf_id); 3922 aq_ret = -EINVAL; 3923 goto err_out; 3924 } 3925 3926 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3927 if (!cfilter) { 3928 aq_ret = -ENOMEM; 3929 goto err_out; 3930 } 3931 3932 /* parse destination mac address */ 3933 for (i = 0; i < ETH_ALEN; i++) 3934 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3935 3936 /* parse source mac address */ 3937 for (i = 0; i < ETH_ALEN; i++) 3938 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3939 3940 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3941 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3942 cfilter->src_port = mask.src_port & tcf.src_port; 3943 3944 switch (vcf->flow_type) { 3945 case VIRTCHNL_TCP_V4_FLOW: 3946 cfilter->n_proto = ETH_P_IP; 3947 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3948 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3949 ARRAY_SIZE(tcf.dst_ip)); 3950 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3951 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3952 ARRAY_SIZE(tcf.dst_ip)); 3953 break; 3954 case VIRTCHNL_TCP_V6_FLOW: 3955 cfilter->n_proto = ETH_P_IPV6; 3956 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3957 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3958 sizeof(cfilter->ip.v6.dst_ip6)); 3959 if (mask.src_ip[3] & tcf.src_ip[3]) 3960 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3961 sizeof(cfilter->ip.v6.src_ip6)); 3962 break; 3963 default: 3964 /* TC filter can be configured based on different combinations 3965 * and in this case IP is not a part of filter config 3966 */ 3967 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3968 vf->vf_id); 3969 } 3970 3971 /* get the VSI to which the TC belongs to */ 3972 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3973 cfilter->seid = vsi->seid; 3974 cfilter->flags = vcf->field_flags; 3975 3976 /* Adding cloud filter programmed as TC filter */ 3977 if (tcf.dst_port) 3978 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3979 else 3980 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3981 if (aq_ret) { 3982 dev_err(&pf->pdev->dev, 3983 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n", 3984 vf->vf_id, ERR_PTR(aq_ret), 3985 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3986 goto err_free; 3987 } 3988 3989 INIT_HLIST_NODE(&cfilter->cloud_node); 3990 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3991 /* release the pointer passing it to the collection */ 3992 cfilter = NULL; 3993 vf->num_cloud_filters++; 3994 err_free: 3995 kfree(cfilter); 3996 err_out: 3997 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3998 aq_ret); 3999 } 4000 4001 /** 4002 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 4003 * @vf: pointer to the VF info 4004 * @msg: pointer to the msg buffer 4005 **/ 4006 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 4007 { 4008 struct virtchnl_tc_info *tci = 4009 (struct virtchnl_tc_info *)msg; 4010 struct i40e_pf *pf = vf->pf; 4011 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4012 int i, adq_request_qps = 0; 4013 int aq_ret = 0; 4014 u64 speed = 0; 4015 4016 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4017 aq_ret = -EINVAL; 4018 goto err; 4019 } 4020 4021 /* ADq cannot be applied if spoof check is ON */ 4022 if (vf->spoofchk) { 4023 dev_err(&pf->pdev->dev, 4024 "Spoof check is ON, turn it OFF to enable ADq\n"); 4025 aq_ret = -EINVAL; 4026 goto err; 4027 } 4028 4029 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 4030 dev_err(&pf->pdev->dev, 4031 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 4032 vf->vf_id); 4033 aq_ret = -EINVAL; 4034 goto err; 4035 } 4036 4037 /* max number of traffic classes for VF currently capped at 4 */ 4038 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 4039 dev_err(&pf->pdev->dev, 4040 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 4041 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 4042 aq_ret = -EINVAL; 4043 goto err; 4044 } 4045 4046 /* validate queues for each TC */ 4047 for (i = 0; i < tci->num_tc; i++) 4048 if (!tci->list[i].count || 4049 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 4050 dev_err(&pf->pdev->dev, 4051 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 4052 vf->vf_id, i, tci->list[i].count, 4053 I40E_DEFAULT_QUEUES_PER_VF); 4054 aq_ret = -EINVAL; 4055 goto err; 4056 } 4057 4058 /* need Max VF queues but already have default number of queues */ 4059 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 4060 4061 if (pf->queues_left < adq_request_qps) { 4062 dev_err(&pf->pdev->dev, 4063 "No queues left to allocate to VF %d\n", 4064 vf->vf_id); 4065 aq_ret = -EINVAL; 4066 goto err; 4067 } else { 4068 /* we need to allocate max VF queues to enable ADq so as to 4069 * make sure ADq enabled VF always gets back queues when it 4070 * goes through a reset. 4071 */ 4072 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 4073 } 4074 4075 /* get link speed in MB to validate rate limit */ 4076 speed = i40e_vc_link_speed2mbps(ls->link_speed); 4077 if (speed == SPEED_UNKNOWN) { 4078 dev_err(&pf->pdev->dev, 4079 "Cannot detect link speed\n"); 4080 aq_ret = -EINVAL; 4081 goto err; 4082 } 4083 4084 /* parse data from the queue channel info */ 4085 vf->num_tc = tci->num_tc; 4086 for (i = 0; i < vf->num_tc; i++) { 4087 if (tci->list[i].max_tx_rate) { 4088 if (tci->list[i].max_tx_rate > speed) { 4089 dev_err(&pf->pdev->dev, 4090 "Invalid max tx rate %llu specified for VF %d.", 4091 tci->list[i].max_tx_rate, 4092 vf->vf_id); 4093 aq_ret = -EINVAL; 4094 goto err; 4095 } else { 4096 vf->ch[i].max_tx_rate = 4097 tci->list[i].max_tx_rate; 4098 } 4099 } 4100 vf->ch[i].num_qps = tci->list[i].count; 4101 } 4102 4103 /* set this flag only after making sure all inputs are sane */ 4104 vf->adq_enabled = true; 4105 4106 /* reset the VF in order to allocate resources */ 4107 i40e_vc_reset_vf(vf, true); 4108 4109 return 0; 4110 4111 /* send the response to the VF */ 4112 err: 4113 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 4114 aq_ret); 4115 } 4116 4117 /** 4118 * i40e_vc_del_qch_msg 4119 * @vf: pointer to the VF info 4120 * @msg: pointer to the msg buffer 4121 **/ 4122 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 4123 { 4124 struct i40e_pf *pf = vf->pf; 4125 int aq_ret = 0; 4126 4127 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 4128 aq_ret = -EINVAL; 4129 goto err; 4130 } 4131 4132 if (vf->adq_enabled) { 4133 i40e_del_all_cloud_filters(vf); 4134 i40e_del_qch(vf); 4135 vf->adq_enabled = false; 4136 vf->num_tc = 0; 4137 dev_info(&pf->pdev->dev, 4138 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4139 vf->vf_id); 4140 } else { 4141 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4142 vf->vf_id); 4143 aq_ret = -EINVAL; 4144 } 4145 4146 /* reset the VF in order to allocate resources */ 4147 i40e_vc_reset_vf(vf, true); 4148 4149 return 0; 4150 4151 err: 4152 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4153 aq_ret); 4154 } 4155 4156 /** 4157 * i40e_vc_process_vf_msg 4158 * @pf: pointer to the PF structure 4159 * @vf_id: source VF id 4160 * @v_opcode: operation code 4161 * @v_retval: unused return value code 4162 * @msg: pointer to the msg buffer 4163 * @msglen: msg length 4164 * 4165 * called from the common aeq/arq handler to 4166 * process request from VF 4167 **/ 4168 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4169 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4170 { 4171 struct i40e_hw *hw = &pf->hw; 4172 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4173 struct i40e_vf *vf; 4174 int ret; 4175 4176 pf->vf_aq_requests++; 4177 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4178 return -EINVAL; 4179 vf = &(pf->vf[local_vf_id]); 4180 4181 /* Check if VF is disabled. */ 4182 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4183 return -EINVAL; 4184 4185 /* perform basic checks on the msg */ 4186 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4187 4188 if (ret) { 4189 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL); 4190 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4191 local_vf_id, v_opcode, msglen); 4192 return ret; 4193 } 4194 4195 switch (v_opcode) { 4196 case VIRTCHNL_OP_VERSION: 4197 ret = i40e_vc_get_version_msg(vf, msg); 4198 break; 4199 case VIRTCHNL_OP_GET_VF_RESOURCES: 4200 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4201 i40e_vc_notify_vf_link_state(vf); 4202 break; 4203 case VIRTCHNL_OP_RESET_VF: 4204 i40e_vc_reset_vf(vf, false); 4205 ret = 0; 4206 break; 4207 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4208 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4209 break; 4210 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4211 ret = i40e_vc_config_queues_msg(vf, msg); 4212 break; 4213 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4214 ret = i40e_vc_config_irq_map_msg(vf, msg); 4215 break; 4216 case VIRTCHNL_OP_ENABLE_QUEUES: 4217 ret = i40e_vc_enable_queues_msg(vf, msg); 4218 i40e_vc_notify_vf_link_state(vf); 4219 break; 4220 case VIRTCHNL_OP_DISABLE_QUEUES: 4221 ret = i40e_vc_disable_queues_msg(vf, msg); 4222 break; 4223 case VIRTCHNL_OP_ADD_ETH_ADDR: 4224 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4225 break; 4226 case VIRTCHNL_OP_DEL_ETH_ADDR: 4227 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4228 break; 4229 case VIRTCHNL_OP_ADD_VLAN: 4230 ret = i40e_vc_add_vlan_msg(vf, msg); 4231 break; 4232 case VIRTCHNL_OP_DEL_VLAN: 4233 ret = i40e_vc_remove_vlan_msg(vf, msg); 4234 break; 4235 case VIRTCHNL_OP_GET_STATS: 4236 ret = i40e_vc_get_stats_msg(vf, msg); 4237 break; 4238 case VIRTCHNL_OP_RDMA: 4239 ret = i40e_vc_rdma_msg(vf, msg, msglen); 4240 break; 4241 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP: 4242 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true); 4243 break; 4244 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP: 4245 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false); 4246 break; 4247 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4248 ret = i40e_vc_config_rss_key(vf, msg); 4249 break; 4250 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4251 ret = i40e_vc_config_rss_lut(vf, msg); 4252 break; 4253 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4254 ret = i40e_vc_get_rss_hena(vf, msg); 4255 break; 4256 case VIRTCHNL_OP_SET_RSS_HENA: 4257 ret = i40e_vc_set_rss_hena(vf, msg); 4258 break; 4259 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4260 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4261 break; 4262 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4263 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4264 break; 4265 case VIRTCHNL_OP_REQUEST_QUEUES: 4266 ret = i40e_vc_request_queues_msg(vf, msg); 4267 break; 4268 case VIRTCHNL_OP_ENABLE_CHANNELS: 4269 ret = i40e_vc_add_qch_msg(vf, msg); 4270 break; 4271 case VIRTCHNL_OP_DISABLE_CHANNELS: 4272 ret = i40e_vc_del_qch_msg(vf, msg); 4273 break; 4274 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4275 ret = i40e_vc_add_cloud_filter(vf, msg); 4276 break; 4277 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4278 ret = i40e_vc_del_cloud_filter(vf, msg); 4279 break; 4280 case VIRTCHNL_OP_UNKNOWN: 4281 default: 4282 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4283 v_opcode, local_vf_id); 4284 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4285 -EOPNOTSUPP); 4286 break; 4287 } 4288 4289 return ret; 4290 } 4291 4292 /** 4293 * i40e_vc_process_vflr_event 4294 * @pf: pointer to the PF structure 4295 * 4296 * called from the vlfr irq handler to 4297 * free up VF resources and state variables 4298 **/ 4299 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4300 { 4301 struct i40e_hw *hw = &pf->hw; 4302 u32 reg, reg_idx, bit_idx; 4303 struct i40e_vf *vf; 4304 int vf_id; 4305 4306 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4307 return 0; 4308 4309 /* Re-enable the VFLR interrupt cause here, before looking for which 4310 * VF got reset. Otherwise, if another VF gets a reset while the 4311 * first one is being processed, that interrupt will be lost, and 4312 * that VF will be stuck in reset forever. 4313 */ 4314 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4315 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4316 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4317 i40e_flush(hw); 4318 4319 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4320 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4321 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4322 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4323 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4324 vf = &pf->vf[vf_id]; 4325 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4326 if (reg & BIT(bit_idx)) 4327 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4328 i40e_reset_vf(vf, true); 4329 } 4330 4331 return 0; 4332 } 4333 4334 /** 4335 * i40e_validate_vf 4336 * @pf: the physical function 4337 * @vf_id: VF identifier 4338 * 4339 * Check that the VF is enabled and the VSI exists. 4340 * 4341 * Returns 0 on success, negative on failure 4342 **/ 4343 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4344 { 4345 struct i40e_vsi *vsi; 4346 struct i40e_vf *vf; 4347 int ret = 0; 4348 4349 if (vf_id >= pf->num_alloc_vfs) { 4350 dev_err(&pf->pdev->dev, 4351 "Invalid VF Identifier %d\n", vf_id); 4352 ret = -EINVAL; 4353 goto err_out; 4354 } 4355 vf = &pf->vf[vf_id]; 4356 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4357 if (!vsi) 4358 ret = -EINVAL; 4359 err_out: 4360 return ret; 4361 } 4362 4363 /** 4364 * i40e_check_vf_init_timeout 4365 * @vf: the virtual function 4366 * 4367 * Check that the VF's initialization was successfully done and if not 4368 * wait up to 300ms for its finish. 4369 * 4370 * Returns true when VF is initialized, false on timeout 4371 **/ 4372 static bool i40e_check_vf_init_timeout(struct i40e_vf *vf) 4373 { 4374 int i; 4375 4376 /* When the VF is resetting wait until it is done. 4377 * It can take up to 200 milliseconds, but wait for 4378 * up to 300 milliseconds to be safe. 4379 */ 4380 for (i = 0; i < 15; i++) { 4381 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4382 return true; 4383 msleep(20); 4384 } 4385 4386 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4387 dev_err(&vf->pf->pdev->dev, 4388 "VF %d still in reset. Try again.\n", vf->vf_id); 4389 return false; 4390 } 4391 4392 return true; 4393 } 4394 4395 /** 4396 * i40e_ndo_set_vf_mac 4397 * @netdev: network interface device structure 4398 * @vf_id: VF identifier 4399 * @mac: mac address 4400 * 4401 * program VF mac address 4402 **/ 4403 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4404 { 4405 struct i40e_netdev_priv *np = netdev_priv(netdev); 4406 struct i40e_vsi *vsi = np->vsi; 4407 struct i40e_pf *pf = vsi->back; 4408 struct i40e_mac_filter *f; 4409 struct i40e_vf *vf; 4410 int ret = 0; 4411 struct hlist_node *h; 4412 int bkt; 4413 4414 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4415 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4416 return -EAGAIN; 4417 } 4418 4419 /* validate the request */ 4420 ret = i40e_validate_vf(pf, vf_id); 4421 if (ret) 4422 goto error_param; 4423 4424 vf = &pf->vf[vf_id]; 4425 if (!i40e_check_vf_init_timeout(vf)) { 4426 ret = -EAGAIN; 4427 goto error_param; 4428 } 4429 vsi = pf->vsi[vf->lan_vsi_idx]; 4430 4431 if (is_multicast_ether_addr(mac)) { 4432 dev_err(&pf->pdev->dev, 4433 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4434 ret = -EINVAL; 4435 goto error_param; 4436 } 4437 4438 /* Lock once because below invoked function add/del_filter requires 4439 * mac_filter_hash_lock to be held 4440 */ 4441 spin_lock_bh(&vsi->mac_filter_hash_lock); 4442 4443 /* delete the temporary mac address */ 4444 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4445 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4446 4447 /* Delete all the filters for this VSI - we're going to kill it 4448 * anyway. 4449 */ 4450 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4451 __i40e_del_filter(vsi, f); 4452 4453 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4454 4455 /* program mac filter */ 4456 if (i40e_sync_vsi_filters(vsi)) { 4457 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4458 ret = -EIO; 4459 goto error_param; 4460 } 4461 ether_addr_copy(vf->default_lan_addr.addr, mac); 4462 4463 if (is_zero_ether_addr(mac)) { 4464 vf->pf_set_mac = false; 4465 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4466 } else { 4467 vf->pf_set_mac = true; 4468 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4469 mac, vf_id); 4470 } 4471 4472 /* Force the VF interface down so it has to bring up with new MAC 4473 * address 4474 */ 4475 i40e_vc_reset_vf(vf, true); 4476 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4477 4478 error_param: 4479 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4480 return ret; 4481 } 4482 4483 /** 4484 * i40e_ndo_set_vf_port_vlan 4485 * @netdev: network interface device structure 4486 * @vf_id: VF identifier 4487 * @vlan_id: mac address 4488 * @qos: priority setting 4489 * @vlan_proto: vlan protocol 4490 * 4491 * program VF vlan id and/or qos 4492 **/ 4493 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4494 u16 vlan_id, u8 qos, __be16 vlan_proto) 4495 { 4496 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4497 struct i40e_netdev_priv *np = netdev_priv(netdev); 4498 bool allmulti = false, alluni = false; 4499 struct i40e_pf *pf = np->vsi->back; 4500 struct i40e_vsi *vsi; 4501 struct i40e_vf *vf; 4502 int ret = 0; 4503 4504 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4505 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4506 return -EAGAIN; 4507 } 4508 4509 /* validate the request */ 4510 ret = i40e_validate_vf(pf, vf_id); 4511 if (ret) 4512 goto error_pvid; 4513 4514 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4515 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4516 ret = -EINVAL; 4517 goto error_pvid; 4518 } 4519 4520 if (vlan_proto != htons(ETH_P_8021Q)) { 4521 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4522 ret = -EPROTONOSUPPORT; 4523 goto error_pvid; 4524 } 4525 4526 vf = &pf->vf[vf_id]; 4527 if (!i40e_check_vf_init_timeout(vf)) { 4528 ret = -EAGAIN; 4529 goto error_pvid; 4530 } 4531 vsi = pf->vsi[vf->lan_vsi_idx]; 4532 4533 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4534 /* duplicate request, so just return success */ 4535 goto error_pvid; 4536 4537 i40e_vlan_stripping_enable(vsi); 4538 4539 /* Locked once because multiple functions below iterate list */ 4540 spin_lock_bh(&vsi->mac_filter_hash_lock); 4541 4542 /* Check for condition where there was already a port VLAN ID 4543 * filter set and now it is being deleted by setting it to zero. 4544 * Additionally check for the condition where there was a port 4545 * VLAN but now there is a new and different port VLAN being set. 4546 * Before deleting all the old VLAN filters we must add new ones 4547 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4548 * MAC addresses deleted. 4549 */ 4550 if ((!(vlan_id || qos) || 4551 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4552 vsi->info.pvid) { 4553 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4554 if (ret) { 4555 dev_info(&vsi->back->pdev->dev, 4556 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4557 vsi->back->hw.aq.asq_last_status); 4558 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4559 goto error_pvid; 4560 } 4561 } 4562 4563 if (vsi->info.pvid) { 4564 /* remove all filters on the old VLAN */ 4565 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4566 VLAN_VID_MASK)); 4567 } 4568 4569 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4570 4571 /* disable promisc modes in case they were enabled */ 4572 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4573 allmulti, alluni); 4574 if (ret) { 4575 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4576 goto error_pvid; 4577 } 4578 4579 if (vlan_id || qos) 4580 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4581 else 4582 i40e_vsi_remove_pvid(vsi); 4583 spin_lock_bh(&vsi->mac_filter_hash_lock); 4584 4585 if (vlan_id) { 4586 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4587 vlan_id, qos, vf_id); 4588 4589 /* add new VLAN filter for each MAC */ 4590 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4591 if (ret) { 4592 dev_info(&vsi->back->pdev->dev, 4593 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4594 vsi->back->hw.aq.asq_last_status); 4595 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4596 goto error_pvid; 4597 } 4598 4599 /* remove the previously added non-VLAN MAC filters */ 4600 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4601 } 4602 4603 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4604 4605 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4606 alluni = true; 4607 4608 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4609 allmulti = true; 4610 4611 /* Schedule the worker thread to take care of applying changes */ 4612 i40e_service_event_schedule(vsi->back); 4613 4614 if (ret) { 4615 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4616 goto error_pvid; 4617 } 4618 4619 /* The Port VLAN needs to be saved across resets the same as the 4620 * default LAN MAC address. 4621 */ 4622 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4623 4624 i40e_vc_reset_vf(vf, true); 4625 /* During reset the VF got a new VSI, so refresh a pointer. */ 4626 vsi = pf->vsi[vf->lan_vsi_idx]; 4627 4628 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4629 if (ret) { 4630 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4631 goto error_pvid; 4632 } 4633 4634 ret = 0; 4635 4636 error_pvid: 4637 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4638 return ret; 4639 } 4640 4641 /** 4642 * i40e_ndo_set_vf_bw 4643 * @netdev: network interface device structure 4644 * @vf_id: VF identifier 4645 * @min_tx_rate: Minimum Tx rate 4646 * @max_tx_rate: Maximum Tx rate 4647 * 4648 * configure VF Tx rate 4649 **/ 4650 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4651 int max_tx_rate) 4652 { 4653 struct i40e_netdev_priv *np = netdev_priv(netdev); 4654 struct i40e_pf *pf = np->vsi->back; 4655 struct i40e_vsi *vsi; 4656 struct i40e_vf *vf; 4657 int ret = 0; 4658 4659 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4660 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4661 return -EAGAIN; 4662 } 4663 4664 /* validate the request */ 4665 ret = i40e_validate_vf(pf, vf_id); 4666 if (ret) 4667 goto error; 4668 4669 if (min_tx_rate) { 4670 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4671 min_tx_rate, vf_id); 4672 ret = -EINVAL; 4673 goto error; 4674 } 4675 4676 vf = &pf->vf[vf_id]; 4677 if (!i40e_check_vf_init_timeout(vf)) { 4678 ret = -EAGAIN; 4679 goto error; 4680 } 4681 vsi = pf->vsi[vf->lan_vsi_idx]; 4682 4683 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4684 if (ret) 4685 goto error; 4686 4687 vf->tx_rate = max_tx_rate; 4688 error: 4689 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4690 return ret; 4691 } 4692 4693 /** 4694 * i40e_ndo_get_vf_config 4695 * @netdev: network interface device structure 4696 * @vf_id: VF identifier 4697 * @ivi: VF configuration structure 4698 * 4699 * return VF configuration 4700 **/ 4701 int i40e_ndo_get_vf_config(struct net_device *netdev, 4702 int vf_id, struct ifla_vf_info *ivi) 4703 { 4704 struct i40e_netdev_priv *np = netdev_priv(netdev); 4705 struct i40e_vsi *vsi = np->vsi; 4706 struct i40e_pf *pf = vsi->back; 4707 struct i40e_vf *vf; 4708 int ret = 0; 4709 4710 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4711 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4712 return -EAGAIN; 4713 } 4714 4715 /* validate the request */ 4716 ret = i40e_validate_vf(pf, vf_id); 4717 if (ret) 4718 goto error_param; 4719 4720 vf = &pf->vf[vf_id]; 4721 /* first vsi is always the LAN vsi */ 4722 vsi = pf->vsi[vf->lan_vsi_idx]; 4723 if (!vsi) { 4724 ret = -ENOENT; 4725 goto error_param; 4726 } 4727 4728 ivi->vf = vf_id; 4729 4730 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4731 4732 ivi->max_tx_rate = vf->tx_rate; 4733 ivi->min_tx_rate = 0; 4734 ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK); 4735 ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK); 4736 if (vf->link_forced == false) 4737 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4738 else if (vf->link_up == true) 4739 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4740 else 4741 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4742 ivi->spoofchk = vf->spoofchk; 4743 ivi->trusted = vf->trusted; 4744 ret = 0; 4745 4746 error_param: 4747 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4748 return ret; 4749 } 4750 4751 /** 4752 * i40e_ndo_set_vf_link_state 4753 * @netdev: network interface device structure 4754 * @vf_id: VF identifier 4755 * @link: required link state 4756 * 4757 * Set the link state of a specified VF, regardless of physical link state 4758 **/ 4759 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4760 { 4761 struct i40e_netdev_priv *np = netdev_priv(netdev); 4762 struct i40e_pf *pf = np->vsi->back; 4763 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4764 struct virtchnl_pf_event pfe; 4765 struct i40e_hw *hw = &pf->hw; 4766 struct i40e_vsi *vsi; 4767 unsigned long q_map; 4768 struct i40e_vf *vf; 4769 int abs_vf_id; 4770 int ret = 0; 4771 int tmp; 4772 4773 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4774 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4775 return -EAGAIN; 4776 } 4777 4778 /* validate the request */ 4779 if (vf_id >= pf->num_alloc_vfs) { 4780 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4781 ret = -EINVAL; 4782 goto error_out; 4783 } 4784 4785 vf = &pf->vf[vf_id]; 4786 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4787 4788 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4789 pfe.severity = PF_EVENT_SEVERITY_INFO; 4790 4791 switch (link) { 4792 case IFLA_VF_LINK_STATE_AUTO: 4793 vf->link_forced = false; 4794 vf->is_disabled_from_host = false; 4795 /* reset needed to reinit VF resources */ 4796 i40e_vc_reset_vf(vf, true); 4797 i40e_set_vf_link_state(vf, &pfe, ls); 4798 break; 4799 case IFLA_VF_LINK_STATE_ENABLE: 4800 vf->link_forced = true; 4801 vf->link_up = true; 4802 vf->is_disabled_from_host = false; 4803 /* reset needed to reinit VF resources */ 4804 i40e_vc_reset_vf(vf, true); 4805 i40e_set_vf_link_state(vf, &pfe, ls); 4806 break; 4807 case IFLA_VF_LINK_STATE_DISABLE: 4808 vf->link_forced = true; 4809 vf->link_up = false; 4810 i40e_set_vf_link_state(vf, &pfe, ls); 4811 4812 vsi = pf->vsi[vf->lan_vsi_idx]; 4813 q_map = BIT(vsi->num_queue_pairs) - 1; 4814 4815 vf->is_disabled_from_host = true; 4816 4817 /* Try to stop both Tx&Rx rings even if one of the calls fails 4818 * to ensure we stop the rings even in case of errors. 4819 * If any of them returns with an error then the first 4820 * error that occurred will be returned. 4821 */ 4822 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false); 4823 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false); 4824 4825 ret = tmp ? tmp : ret; 4826 break; 4827 default: 4828 ret = -EINVAL; 4829 goto error_out; 4830 } 4831 /* Notify the VF of its new link state */ 4832 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4833 0, (u8 *)&pfe, sizeof(pfe), NULL); 4834 4835 error_out: 4836 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4837 return ret; 4838 } 4839 4840 /** 4841 * i40e_ndo_set_vf_spoofchk 4842 * @netdev: network interface device structure 4843 * @vf_id: VF identifier 4844 * @enable: flag to enable or disable feature 4845 * 4846 * Enable or disable VF spoof checking 4847 **/ 4848 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4849 { 4850 struct i40e_netdev_priv *np = netdev_priv(netdev); 4851 struct i40e_vsi *vsi = np->vsi; 4852 struct i40e_pf *pf = vsi->back; 4853 struct i40e_vsi_context ctxt; 4854 struct i40e_hw *hw = &pf->hw; 4855 struct i40e_vf *vf; 4856 int ret = 0; 4857 4858 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4859 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4860 return -EAGAIN; 4861 } 4862 4863 /* validate the request */ 4864 if (vf_id >= pf->num_alloc_vfs) { 4865 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4866 ret = -EINVAL; 4867 goto out; 4868 } 4869 4870 vf = &(pf->vf[vf_id]); 4871 if (!i40e_check_vf_init_timeout(vf)) { 4872 ret = -EAGAIN; 4873 goto out; 4874 } 4875 4876 if (enable == vf->spoofchk) 4877 goto out; 4878 4879 vf->spoofchk = enable; 4880 memset(&ctxt, 0, sizeof(ctxt)); 4881 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4882 ctxt.pf_num = pf->hw.pf_id; 4883 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4884 if (enable) 4885 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4886 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4887 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4888 if (ret) { 4889 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4890 ret); 4891 ret = -EIO; 4892 } 4893 out: 4894 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4895 return ret; 4896 } 4897 4898 /** 4899 * i40e_ndo_set_vf_trust 4900 * @netdev: network interface device structure of the pf 4901 * @vf_id: VF identifier 4902 * @setting: trust setting 4903 * 4904 * Enable or disable VF trust setting 4905 **/ 4906 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4907 { 4908 struct i40e_netdev_priv *np = netdev_priv(netdev); 4909 struct i40e_pf *pf = np->vsi->back; 4910 struct i40e_vf *vf; 4911 int ret = 0; 4912 4913 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4914 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4915 return -EAGAIN; 4916 } 4917 4918 /* validate the request */ 4919 if (vf_id >= pf->num_alloc_vfs) { 4920 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4921 ret = -EINVAL; 4922 goto out; 4923 } 4924 4925 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4926 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4927 ret = -EINVAL; 4928 goto out; 4929 } 4930 4931 vf = &pf->vf[vf_id]; 4932 4933 if (setting == vf->trusted) 4934 goto out; 4935 4936 vf->trusted = setting; 4937 4938 /* request PF to sync mac/vlan filters for the VF */ 4939 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4940 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4941 4942 i40e_vc_reset_vf(vf, true); 4943 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4944 vf_id, setting ? "" : "un"); 4945 4946 if (vf->adq_enabled) { 4947 if (!vf->trusted) { 4948 dev_info(&pf->pdev->dev, 4949 "VF %u no longer Trusted, deleting all cloud filters\n", 4950 vf_id); 4951 i40e_del_all_cloud_filters(vf); 4952 } 4953 } 4954 4955 out: 4956 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4957 return ret; 4958 } 4959 4960 /** 4961 * i40e_get_vf_stats - populate some stats for the VF 4962 * @netdev: the netdev of the PF 4963 * @vf_id: the host OS identifier (0-127) 4964 * @vf_stats: pointer to the OS memory to be initialized 4965 */ 4966 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4967 struct ifla_vf_stats *vf_stats) 4968 { 4969 struct i40e_netdev_priv *np = netdev_priv(netdev); 4970 struct i40e_pf *pf = np->vsi->back; 4971 struct i40e_eth_stats *stats; 4972 struct i40e_vsi *vsi; 4973 struct i40e_vf *vf; 4974 4975 /* validate the request */ 4976 if (i40e_validate_vf(pf, vf_id)) 4977 return -EINVAL; 4978 4979 vf = &pf->vf[vf_id]; 4980 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4981 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4982 return -EBUSY; 4983 } 4984 4985 vsi = pf->vsi[vf->lan_vsi_idx]; 4986 if (!vsi) 4987 return -EINVAL; 4988 4989 i40e_update_eth_stats(vsi); 4990 stats = &vsi->eth_stats; 4991 4992 memset(vf_stats, 0, sizeof(*vf_stats)); 4993 4994 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4995 stats->rx_multicast; 4996 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4997 stats->tx_multicast; 4998 vf_stats->rx_bytes = stats->rx_bytes; 4999 vf_stats->tx_bytes = stats->tx_bytes; 5000 vf_stats->broadcast = stats->rx_broadcast; 5001 vf_stats->multicast = stats->rx_multicast; 5002 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other; 5003 vf_stats->tx_dropped = stats->tx_discards; 5004 5005 return 0; 5006 } 5007