1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #include "i40e.h" 5 6 /*********************notification routines***********************/ 7 8 /** 9 * i40e_vc_vf_broadcast 10 * @pf: pointer to the PF structure 11 * @v_opcode: operation code 12 * @v_retval: return value 13 * @msg: pointer to the msg buffer 14 * @msglen: msg length 15 * 16 * send a message to all VFs on a given PF 17 **/ 18 static void i40e_vc_vf_broadcast(struct i40e_pf *pf, 19 enum virtchnl_ops v_opcode, 20 i40e_status v_retval, u8 *msg, 21 u16 msglen) 22 { 23 struct i40e_hw *hw = &pf->hw; 24 struct i40e_vf *vf = pf->vf; 25 int i; 26 27 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { 28 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 29 /* Not all vfs are enabled so skip the ones that are not */ 30 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 31 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 32 continue; 33 34 /* Ignore return value on purpose - a given VF may fail, but 35 * we need to keep going and send to all of them 36 */ 37 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 38 msg, msglen, NULL); 39 } 40 } 41 42 /** 43 * i40e_vc_link_speed2mbps 44 * converts i40e_aq_link_speed to integer value of Mbps 45 * @link_speed: the speed to convert 46 * 47 * return the speed as direct value of Mbps. 48 **/ 49 static u32 50 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed) 51 { 52 switch (link_speed) { 53 case I40E_LINK_SPEED_100MB: 54 return SPEED_100; 55 case I40E_LINK_SPEED_1GB: 56 return SPEED_1000; 57 case I40E_LINK_SPEED_2_5GB: 58 return SPEED_2500; 59 case I40E_LINK_SPEED_5GB: 60 return SPEED_5000; 61 case I40E_LINK_SPEED_10GB: 62 return SPEED_10000; 63 case I40E_LINK_SPEED_20GB: 64 return SPEED_20000; 65 case I40E_LINK_SPEED_25GB: 66 return SPEED_25000; 67 case I40E_LINK_SPEED_40GB: 68 return SPEED_40000; 69 case I40E_LINK_SPEED_UNKNOWN: 70 return SPEED_UNKNOWN; 71 } 72 return SPEED_UNKNOWN; 73 } 74 75 /** 76 * i40e_set_vf_link_state 77 * @vf: pointer to the VF structure 78 * @pfe: pointer to PF event structure 79 * @ls: pointer to link status structure 80 * 81 * set a link state on a single vf 82 **/ 83 static void i40e_set_vf_link_state(struct i40e_vf *vf, 84 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls) 85 { 86 u8 link_status = ls->link_info & I40E_AQ_LINK_UP; 87 88 if (vf->link_forced) 89 link_status = vf->link_up; 90 91 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { 92 pfe->event_data.link_event_adv.link_speed = link_status ? 93 i40e_vc_link_speed2mbps(ls->link_speed) : 0; 94 pfe->event_data.link_event_adv.link_status = link_status; 95 } else { 96 pfe->event_data.link_event.link_speed = link_status ? 97 i40e_virtchnl_link_speed(ls->link_speed) : 0; 98 pfe->event_data.link_event.link_status = link_status; 99 } 100 } 101 102 /** 103 * i40e_vc_notify_vf_link_state 104 * @vf: pointer to the VF structure 105 * 106 * send a link status message to a single VF 107 **/ 108 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 109 { 110 struct virtchnl_pf_event pfe; 111 struct i40e_pf *pf = vf->pf; 112 struct i40e_hw *hw = &pf->hw; 113 struct i40e_link_status *ls = &pf->hw.phy.link_info; 114 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 115 116 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 117 pfe.severity = PF_EVENT_SEVERITY_INFO; 118 119 i40e_set_vf_link_state(vf, &pfe, ls); 120 121 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 122 0, (u8 *)&pfe, sizeof(pfe), NULL); 123 } 124 125 /** 126 * i40e_vc_notify_link_state 127 * @pf: pointer to the PF structure 128 * 129 * send a link status message to all VFs on a given PF 130 **/ 131 void i40e_vc_notify_link_state(struct i40e_pf *pf) 132 { 133 int i; 134 135 for (i = 0; i < pf->num_alloc_vfs; i++) 136 i40e_vc_notify_vf_link_state(&pf->vf[i]); 137 } 138 139 /** 140 * i40e_vc_notify_reset 141 * @pf: pointer to the PF structure 142 * 143 * indicate a pending reset to all VFs on a given PF 144 **/ 145 void i40e_vc_notify_reset(struct i40e_pf *pf) 146 { 147 struct virtchnl_pf_event pfe; 148 149 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 150 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 151 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, 152 (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); 153 } 154 155 /** 156 * i40e_vc_notify_vf_reset 157 * @vf: pointer to the VF structure 158 * 159 * indicate a pending reset to the given VF 160 **/ 161 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 162 { 163 struct virtchnl_pf_event pfe; 164 int abs_vf_id; 165 166 /* validate the request */ 167 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 168 return; 169 170 /* verify if the VF is in either init or active before proceeding */ 171 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 172 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 173 return; 174 175 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 176 177 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 178 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 179 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, 180 0, (u8 *)&pfe, 181 sizeof(struct virtchnl_pf_event), NULL); 182 } 183 /***********************misc routines*****************************/ 184 185 /** 186 * i40e_vc_reset_vf 187 * @vf: pointer to the VF info 188 * @notify_vf: notify vf about reset or not 189 * Reset VF handler. 190 **/ 191 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf) 192 { 193 struct i40e_pf *pf = vf->pf; 194 int i; 195 196 if (notify_vf) 197 i40e_vc_notify_vf_reset(vf); 198 199 /* We want to ensure that an actual reset occurs initiated after this 200 * function was called. However, we do not want to wait forever, so 201 * we'll give a reasonable time and print a message if we failed to 202 * ensure a reset. 203 */ 204 for (i = 0; i < 20; i++) { 205 /* If PF is in VFs releasing state reset VF is impossible, 206 * so leave it. 207 */ 208 if (test_bit(__I40E_VFS_RELEASING, pf->state)) 209 return; 210 if (i40e_reset_vf(vf, false)) 211 return; 212 usleep_range(10000, 20000); 213 } 214 215 if (notify_vf) 216 dev_warn(&vf->pf->pdev->dev, 217 "Failed to initiate reset for VF %d after 200 milliseconds\n", 218 vf->vf_id); 219 else 220 dev_dbg(&vf->pf->pdev->dev, 221 "Failed to initiate reset for VF %d after 200 milliseconds\n", 222 vf->vf_id); 223 } 224 225 /** 226 * i40e_vc_isvalid_vsi_id 227 * @vf: pointer to the VF info 228 * @vsi_id: VF relative VSI id 229 * 230 * check for the valid VSI id 231 **/ 232 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 233 { 234 struct i40e_pf *pf = vf->pf; 235 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 236 237 return (vsi && (vsi->vf_id == vf->vf_id)); 238 } 239 240 /** 241 * i40e_vc_isvalid_queue_id 242 * @vf: pointer to the VF info 243 * @vsi_id: vsi id 244 * @qid: vsi relative queue id 245 * 246 * check for the valid queue id 247 **/ 248 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 249 u16 qid) 250 { 251 struct i40e_pf *pf = vf->pf; 252 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 253 254 return (vsi && (qid < vsi->alloc_queue_pairs)); 255 } 256 257 /** 258 * i40e_vc_isvalid_vector_id 259 * @vf: pointer to the VF info 260 * @vector_id: VF relative vector id 261 * 262 * check for the valid vector id 263 **/ 264 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) 265 { 266 struct i40e_pf *pf = vf->pf; 267 268 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 269 } 270 271 /***********************vf resource mgmt routines*****************/ 272 273 /** 274 * i40e_vc_get_pf_queue_id 275 * @vf: pointer to the VF info 276 * @vsi_id: id of VSI as provided by the FW 277 * @vsi_queue_id: vsi relative queue id 278 * 279 * return PF relative queue id 280 **/ 281 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 282 u8 vsi_queue_id) 283 { 284 struct i40e_pf *pf = vf->pf; 285 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 286 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 287 288 if (!vsi) 289 return pf_queue_id; 290 291 if (le16_to_cpu(vsi->info.mapping_flags) & 292 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 293 pf_queue_id = 294 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 295 else 296 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 297 vsi_queue_id; 298 299 return pf_queue_id; 300 } 301 302 /** 303 * i40e_get_real_pf_qid 304 * @vf: pointer to the VF info 305 * @vsi_id: vsi id 306 * @queue_id: queue number 307 * 308 * wrapper function to get pf_queue_id handling ADq code as well 309 **/ 310 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) 311 { 312 int i; 313 314 if (vf->adq_enabled) { 315 /* Although VF considers all the queues(can be 1 to 16) as its 316 * own but they may actually belong to different VSIs(up to 4). 317 * We need to find which queues belongs to which VSI. 318 */ 319 for (i = 0; i < vf->num_tc; i++) { 320 if (queue_id < vf->ch[i].num_qps) { 321 vsi_id = vf->ch[i].vsi_id; 322 break; 323 } 324 /* find right queue id which is relative to a 325 * given VSI. 326 */ 327 queue_id -= vf->ch[i].num_qps; 328 } 329 } 330 331 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); 332 } 333 334 /** 335 * i40e_config_irq_link_list 336 * @vf: pointer to the VF info 337 * @vsi_id: id of VSI as given by the FW 338 * @vecmap: irq map info 339 * 340 * configure irq link list from the map 341 **/ 342 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 343 struct virtchnl_vector_map *vecmap) 344 { 345 unsigned long linklistmap = 0, tempmap; 346 struct i40e_pf *pf = vf->pf; 347 struct i40e_hw *hw = &pf->hw; 348 u16 vsi_queue_id, pf_queue_id; 349 enum i40e_queue_type qtype; 350 u16 next_q, vector_id, size; 351 u32 reg, reg_idx; 352 u16 itr_idx = 0; 353 354 vector_id = vecmap->vector_id; 355 /* setup the head */ 356 if (0 == vector_id) 357 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 358 else 359 reg_idx = I40E_VPINT_LNKLSTN( 360 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 361 (vector_id - 1)); 362 363 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 364 /* Special case - No queues mapped on this vector */ 365 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 366 goto irq_list_done; 367 } 368 tempmap = vecmap->rxq_map; 369 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 370 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 371 vsi_queue_id)); 372 } 373 374 tempmap = vecmap->txq_map; 375 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 376 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 377 vsi_queue_id + 1)); 378 } 379 380 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; 381 next_q = find_first_bit(&linklistmap, size); 382 if (unlikely(next_q == size)) 383 goto irq_list_done; 384 385 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 386 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 387 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); 388 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 389 390 wr32(hw, reg_idx, reg); 391 392 while (next_q < size) { 393 switch (qtype) { 394 case I40E_QUEUE_TYPE_RX: 395 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 396 itr_idx = vecmap->rxitr_idx; 397 break; 398 case I40E_QUEUE_TYPE_TX: 399 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 400 itr_idx = vecmap->txitr_idx; 401 break; 402 default: 403 break; 404 } 405 406 next_q = find_next_bit(&linklistmap, size, next_q + 1); 407 if (next_q < size) { 408 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 409 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 410 pf_queue_id = i40e_get_real_pf_qid(vf, 411 vsi_id, 412 vsi_queue_id); 413 } else { 414 pf_queue_id = I40E_QUEUE_END_OF_LIST; 415 qtype = 0; 416 } 417 418 /* format for the RQCTL & TQCTL regs is same */ 419 reg = (vector_id) | 420 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 421 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 422 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 423 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 424 wr32(hw, reg_idx, reg); 425 } 426 427 /* if the vf is running in polling mode and using interrupt zero, 428 * need to disable auto-mask on enabling zero interrupt for VFs. 429 */ 430 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 431 (vector_id == 0)) { 432 reg = rd32(hw, I40E_GLINT_CTL); 433 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 434 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 435 wr32(hw, I40E_GLINT_CTL, reg); 436 } 437 } 438 439 irq_list_done: 440 i40e_flush(hw); 441 } 442 443 /** 444 * i40e_release_iwarp_qvlist 445 * @vf: pointer to the VF. 446 * 447 **/ 448 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) 449 { 450 struct i40e_pf *pf = vf->pf; 451 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; 452 u32 msix_vf; 453 u32 i; 454 455 if (!vf->qvlist_info) 456 return; 457 458 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 459 for (i = 0; i < qvlist_info->num_vectors; i++) { 460 struct virtchnl_iwarp_qv_info *qv_info; 461 u32 next_q_index, next_q_type; 462 struct i40e_hw *hw = &pf->hw; 463 u32 v_idx, reg_idx, reg; 464 465 qv_info = &qvlist_info->qv_info[i]; 466 if (!qv_info) 467 continue; 468 v_idx = qv_info->v_idx; 469 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 470 /* Figure out the queue after CEQ and make that the 471 * first queue. 472 */ 473 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 474 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 475 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 476 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 477 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 478 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 479 480 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 481 reg = (next_q_index & 482 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 483 (next_q_type << 484 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 485 486 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 487 } 488 } 489 kfree(vf->qvlist_info); 490 vf->qvlist_info = NULL; 491 } 492 493 /** 494 * i40e_config_iwarp_qvlist 495 * @vf: pointer to the VF info 496 * @qvlist_info: queue and vector list 497 * 498 * Return 0 on success or < 0 on error 499 **/ 500 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, 501 struct virtchnl_iwarp_qvlist_info *qvlist_info) 502 { 503 struct i40e_pf *pf = vf->pf; 504 struct i40e_hw *hw = &pf->hw; 505 struct virtchnl_iwarp_qv_info *qv_info; 506 u32 v_idx, i, reg_idx, reg; 507 u32 next_q_idx, next_q_type; 508 u32 msix_vf; 509 int ret = 0; 510 511 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 512 513 if (qvlist_info->num_vectors > msix_vf) { 514 dev_warn(&pf->pdev->dev, 515 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 516 qvlist_info->num_vectors, 517 msix_vf); 518 ret = -EINVAL; 519 goto err_out; 520 } 521 522 kfree(vf->qvlist_info); 523 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info, 524 qvlist_info->num_vectors - 1), 525 GFP_KERNEL); 526 if (!vf->qvlist_info) { 527 ret = -ENOMEM; 528 goto err_out; 529 } 530 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 531 532 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 533 for (i = 0; i < qvlist_info->num_vectors; i++) { 534 qv_info = &qvlist_info->qv_info[i]; 535 if (!qv_info) 536 continue; 537 538 /* Validate vector id belongs to this vf */ 539 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 540 ret = -EINVAL; 541 goto err_free; 542 } 543 544 v_idx = qv_info->v_idx; 545 546 vf->qvlist_info->qv_info[i] = *qv_info; 547 548 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 549 /* We might be sharing the interrupt, so get the first queue 550 * index and type, push it down the list by adding the new 551 * queue on top. Also link it with the new queue in CEQCTL. 552 */ 553 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 554 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 555 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 556 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 557 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 558 559 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 560 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 561 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 562 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 563 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 564 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 565 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 566 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 567 568 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 569 reg = (qv_info->ceq_idx & 570 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 571 (I40E_QUEUE_TYPE_PE_CEQ << 572 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 573 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 574 } 575 576 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 577 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 578 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 579 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 580 581 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 582 } 583 } 584 585 return 0; 586 err_free: 587 kfree(vf->qvlist_info); 588 vf->qvlist_info = NULL; 589 err_out: 590 return ret; 591 } 592 593 /** 594 * i40e_config_vsi_tx_queue 595 * @vf: pointer to the VF info 596 * @vsi_id: id of VSI as provided by the FW 597 * @vsi_queue_id: vsi relative queue index 598 * @info: config. info 599 * 600 * configure tx queue 601 **/ 602 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 603 u16 vsi_queue_id, 604 struct virtchnl_txq_info *info) 605 { 606 struct i40e_pf *pf = vf->pf; 607 struct i40e_hw *hw = &pf->hw; 608 struct i40e_hmc_obj_txq tx_ctx; 609 struct i40e_vsi *vsi; 610 u16 pf_queue_id; 611 u32 qtx_ctl; 612 int ret = 0; 613 614 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 615 ret = -ENOENT; 616 goto error_context; 617 } 618 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 619 vsi = i40e_find_vsi_from_id(pf, vsi_id); 620 if (!vsi) { 621 ret = -ENOENT; 622 goto error_context; 623 } 624 625 /* clear the context structure first */ 626 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 627 628 /* only set the required fields */ 629 tx_ctx.base = info->dma_ring_addr / 128; 630 tx_ctx.qlen = info->ring_len; 631 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 632 tx_ctx.rdylist_act = 0; 633 tx_ctx.head_wb_ena = info->headwb_enabled; 634 tx_ctx.head_wb_addr = info->dma_headwb_addr; 635 636 /* clear the context in the HMC */ 637 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 638 if (ret) { 639 dev_err(&pf->pdev->dev, 640 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 641 pf_queue_id, ret); 642 ret = -ENOENT; 643 goto error_context; 644 } 645 646 /* set the context in the HMC */ 647 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 648 if (ret) { 649 dev_err(&pf->pdev->dev, 650 "Failed to set VF LAN Tx queue context %d error: %d\n", 651 pf_queue_id, ret); 652 ret = -ENOENT; 653 goto error_context; 654 } 655 656 /* associate this queue with the PCI VF function */ 657 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 658 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 659 & I40E_QTX_CTL_PF_INDX_MASK); 660 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 661 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 662 & I40E_QTX_CTL_VFVM_INDX_MASK); 663 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 664 i40e_flush(hw); 665 666 error_context: 667 return ret; 668 } 669 670 /** 671 * i40e_config_vsi_rx_queue 672 * @vf: pointer to the VF info 673 * @vsi_id: id of VSI as provided by the FW 674 * @vsi_queue_id: vsi relative queue index 675 * @info: config. info 676 * 677 * configure rx queue 678 **/ 679 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 680 u16 vsi_queue_id, 681 struct virtchnl_rxq_info *info) 682 { 683 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 684 struct i40e_pf *pf = vf->pf; 685 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 686 struct i40e_hw *hw = &pf->hw; 687 struct i40e_hmc_obj_rxq rx_ctx; 688 int ret = 0; 689 690 /* clear the context structure first */ 691 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 692 693 /* only set the required fields */ 694 rx_ctx.base = info->dma_ring_addr / 128; 695 rx_ctx.qlen = info->ring_len; 696 697 if (info->splithdr_enabled) { 698 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 699 I40E_RX_SPLIT_IP | 700 I40E_RX_SPLIT_TCP_UDP | 701 I40E_RX_SPLIT_SCTP; 702 /* header length validation */ 703 if (info->hdr_size > ((2 * 1024) - 64)) { 704 ret = -EINVAL; 705 goto error_param; 706 } 707 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 708 709 /* set split mode 10b */ 710 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 711 } 712 713 /* databuffer length validation */ 714 if (info->databuffer_size > ((16 * 1024) - 128)) { 715 ret = -EINVAL; 716 goto error_param; 717 } 718 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 719 720 /* max pkt. length validation */ 721 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 722 ret = -EINVAL; 723 goto error_param; 724 } 725 rx_ctx.rxmax = info->max_pkt_size; 726 727 /* if port VLAN is configured increase the max packet size */ 728 if (vsi->info.pvid) 729 rx_ctx.rxmax += VLAN_HLEN; 730 731 /* enable 32bytes desc always */ 732 rx_ctx.dsize = 1; 733 734 /* default values */ 735 rx_ctx.lrxqthresh = 1; 736 rx_ctx.crcstrip = 1; 737 rx_ctx.prefena = 1; 738 rx_ctx.l2tsel = 1; 739 740 /* clear the context in the HMC */ 741 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 742 if (ret) { 743 dev_err(&pf->pdev->dev, 744 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 745 pf_queue_id, ret); 746 ret = -ENOENT; 747 goto error_param; 748 } 749 750 /* set the context in the HMC */ 751 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 752 if (ret) { 753 dev_err(&pf->pdev->dev, 754 "Failed to set VF LAN Rx queue context %d error: %d\n", 755 pf_queue_id, ret); 756 ret = -ENOENT; 757 goto error_param; 758 } 759 760 error_param: 761 return ret; 762 } 763 764 /** 765 * i40e_alloc_vsi_res 766 * @vf: pointer to the VF info 767 * @idx: VSI index, applies only for ADq mode, zero otherwise 768 * 769 * alloc VF vsi context & resources 770 **/ 771 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 772 { 773 struct i40e_mac_filter *f = NULL; 774 struct i40e_pf *pf = vf->pf; 775 struct i40e_vsi *vsi; 776 u64 max_tx_rate = 0; 777 int ret = 0; 778 779 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 780 vf->vf_id); 781 782 if (!vsi) { 783 dev_err(&pf->pdev->dev, 784 "add vsi failed for VF %d, aq_err %d\n", 785 vf->vf_id, pf->hw.aq.asq_last_status); 786 ret = -ENOENT; 787 goto error_alloc_vsi_res; 788 } 789 790 if (!idx) { 791 u64 hena = i40e_pf_get_default_rss_hena(pf); 792 u8 broadcast[ETH_ALEN]; 793 794 vf->lan_vsi_idx = vsi->idx; 795 vf->lan_vsi_id = vsi->id; 796 /* If the port VLAN has been configured and then the 797 * VF driver was removed then the VSI port VLAN 798 * configuration was destroyed. Check if there is 799 * a port VLAN and restore the VSI configuration if 800 * needed. 801 */ 802 if (vf->port_vlan_id) 803 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 804 805 spin_lock_bh(&vsi->mac_filter_hash_lock); 806 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 807 f = i40e_add_mac_filter(vsi, 808 vf->default_lan_addr.addr); 809 if (!f) 810 dev_info(&pf->pdev->dev, 811 "Could not add MAC filter %pM for VF %d\n", 812 vf->default_lan_addr.addr, vf->vf_id); 813 } 814 eth_broadcast_addr(broadcast); 815 f = i40e_add_mac_filter(vsi, broadcast); 816 if (!f) 817 dev_info(&pf->pdev->dev, 818 "Could not allocate VF broadcast filter\n"); 819 spin_unlock_bh(&vsi->mac_filter_hash_lock); 820 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 821 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 822 /* program mac filter only for VF VSI */ 823 ret = i40e_sync_vsi_filters(vsi); 824 if (ret) 825 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 826 } 827 828 /* storing VSI index and id for ADq and don't apply the mac filter */ 829 if (vf->adq_enabled) { 830 vf->ch[idx].vsi_idx = vsi->idx; 831 vf->ch[idx].vsi_id = vsi->id; 832 } 833 834 /* Set VF bandwidth if specified */ 835 if (vf->tx_rate) { 836 max_tx_rate = vf->tx_rate; 837 } else if (vf->ch[idx].max_tx_rate) { 838 max_tx_rate = vf->ch[idx].max_tx_rate; 839 } 840 841 if (max_tx_rate) { 842 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 843 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 844 max_tx_rate, 0, NULL); 845 if (ret) 846 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 847 vf->vf_id, ret); 848 } 849 850 error_alloc_vsi_res: 851 return ret; 852 } 853 854 /** 855 * i40e_map_pf_queues_to_vsi 856 * @vf: pointer to the VF info 857 * 858 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 859 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 860 **/ 861 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 862 { 863 struct i40e_pf *pf = vf->pf; 864 struct i40e_hw *hw = &pf->hw; 865 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 866 u16 vsi_id, qps; 867 int i, j; 868 869 if (vf->adq_enabled) 870 num_tc = vf->num_tc; 871 872 for (i = 0; i < num_tc; i++) { 873 if (vf->adq_enabled) { 874 qps = vf->ch[i].num_qps; 875 vsi_id = vf->ch[i].vsi_id; 876 } else { 877 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 878 vsi_id = vf->lan_vsi_id; 879 } 880 881 for (j = 0; j < 7; j++) { 882 if (j * 2 >= qps) { 883 /* end of list */ 884 reg = 0x07FF07FF; 885 } else { 886 u16 qid = i40e_vc_get_pf_queue_id(vf, 887 vsi_id, 888 j * 2); 889 reg = qid; 890 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 891 (j * 2) + 1); 892 reg |= qid << 16; 893 } 894 i40e_write_rx_ctl(hw, 895 I40E_VSILAN_QTABLE(j, vsi_id), 896 reg); 897 } 898 } 899 } 900 901 /** 902 * i40e_map_pf_to_vf_queues 903 * @vf: pointer to the VF info 904 * 905 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 906 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 907 **/ 908 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 909 { 910 struct i40e_pf *pf = vf->pf; 911 struct i40e_hw *hw = &pf->hw; 912 u32 reg, total_qps = 0; 913 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 914 u16 vsi_id, qid; 915 int i, j; 916 917 if (vf->adq_enabled) 918 num_tc = vf->num_tc; 919 920 for (i = 0; i < num_tc; i++) { 921 if (vf->adq_enabled) { 922 qps = vf->ch[i].num_qps; 923 vsi_id = vf->ch[i].vsi_id; 924 } else { 925 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 926 vsi_id = vf->lan_vsi_id; 927 } 928 929 for (j = 0; j < qps; j++) { 930 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 931 932 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 933 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 934 reg); 935 total_qps++; 936 } 937 } 938 } 939 940 /** 941 * i40e_enable_vf_mappings 942 * @vf: pointer to the VF info 943 * 944 * enable VF mappings 945 **/ 946 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 947 { 948 struct i40e_pf *pf = vf->pf; 949 struct i40e_hw *hw = &pf->hw; 950 u32 reg; 951 952 /* Tell the hardware we're using noncontiguous mapping. HW requires 953 * that VF queues be mapped using this method, even when they are 954 * contiguous in real life 955 */ 956 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 957 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 958 959 /* enable VF vplan_qtable mappings */ 960 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 961 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 962 963 i40e_map_pf_to_vf_queues(vf); 964 i40e_map_pf_queues_to_vsi(vf); 965 966 i40e_flush(hw); 967 } 968 969 /** 970 * i40e_disable_vf_mappings 971 * @vf: pointer to the VF info 972 * 973 * disable VF mappings 974 **/ 975 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 976 { 977 struct i40e_pf *pf = vf->pf; 978 struct i40e_hw *hw = &pf->hw; 979 int i; 980 981 /* disable qp mappings */ 982 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 983 for (i = 0; i < I40E_MAX_VSI_QP; i++) 984 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 985 I40E_QUEUE_END_OF_LIST); 986 i40e_flush(hw); 987 } 988 989 /** 990 * i40e_free_vf_res 991 * @vf: pointer to the VF info 992 * 993 * free VF resources 994 **/ 995 static void i40e_free_vf_res(struct i40e_vf *vf) 996 { 997 struct i40e_pf *pf = vf->pf; 998 struct i40e_hw *hw = &pf->hw; 999 u32 reg_idx, reg; 1000 int i, j, msix_vf; 1001 1002 /* Start by disabling VF's configuration API to prevent the OS from 1003 * accessing the VF's VSI after it's freed / invalidated. 1004 */ 1005 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1006 1007 /* It's possible the VF had requeuested more queues than the default so 1008 * do the accounting here when we're about to free them. 1009 */ 1010 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1011 pf->queues_left += vf->num_queue_pairs - 1012 I40E_DEFAULT_QUEUES_PER_VF; 1013 } 1014 1015 /* free vsi & disconnect it from the parent uplink */ 1016 if (vf->lan_vsi_idx) { 1017 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1018 vf->lan_vsi_idx = 0; 1019 vf->lan_vsi_id = 0; 1020 } 1021 1022 /* do the accounting and remove additional ADq VSI's */ 1023 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1024 for (j = 0; j < vf->num_tc; j++) { 1025 /* At this point VSI0 is already released so don't 1026 * release it again and only clear their values in 1027 * structure variables 1028 */ 1029 if (j) 1030 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1031 vf->ch[j].vsi_idx = 0; 1032 vf->ch[j].vsi_id = 0; 1033 } 1034 } 1035 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1036 1037 /* disable interrupts so the VF starts in a known state */ 1038 for (i = 0; i < msix_vf; i++) { 1039 /* format is same for both registers */ 1040 if (0 == i) 1041 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1042 else 1043 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1044 (vf->vf_id)) 1045 + (i - 1)); 1046 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1047 i40e_flush(hw); 1048 } 1049 1050 /* clear the irq settings */ 1051 for (i = 0; i < msix_vf; i++) { 1052 /* format is same for both registers */ 1053 if (0 == i) 1054 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1055 else 1056 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1057 (vf->vf_id)) 1058 + (i - 1)); 1059 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1060 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1061 wr32(hw, reg_idx, reg); 1062 i40e_flush(hw); 1063 } 1064 /* reset some of the state variables keeping track of the resources */ 1065 vf->num_queue_pairs = 0; 1066 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1067 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1068 } 1069 1070 /** 1071 * i40e_alloc_vf_res 1072 * @vf: pointer to the VF info 1073 * 1074 * allocate VF resources 1075 **/ 1076 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1077 { 1078 struct i40e_pf *pf = vf->pf; 1079 int total_queue_pairs = 0; 1080 int ret, idx; 1081 1082 if (vf->num_req_queues && 1083 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1084 pf->num_vf_qps = vf->num_req_queues; 1085 else 1086 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1087 1088 /* allocate hw vsi context & associated resources */ 1089 ret = i40e_alloc_vsi_res(vf, 0); 1090 if (ret) 1091 goto error_alloc; 1092 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1093 1094 /* allocate additional VSIs based on tc information for ADq */ 1095 if (vf->adq_enabled) { 1096 if (pf->queues_left >= 1097 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1098 /* TC 0 always belongs to VF VSI */ 1099 for (idx = 1; idx < vf->num_tc; idx++) { 1100 ret = i40e_alloc_vsi_res(vf, idx); 1101 if (ret) 1102 goto error_alloc; 1103 } 1104 /* send correct number of queues */ 1105 total_queue_pairs = I40E_MAX_VF_QUEUES; 1106 } else { 1107 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1108 vf->vf_id); 1109 vf->adq_enabled = false; 1110 } 1111 } 1112 1113 /* We account for each VF to get a default number of queue pairs. If 1114 * the VF has now requested more, we need to account for that to make 1115 * certain we never request more queues than we actually have left in 1116 * HW. 1117 */ 1118 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1119 pf->queues_left -= 1120 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1121 1122 if (vf->trusted) 1123 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1124 else 1125 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1126 1127 /* store the total qps number for the runtime 1128 * VF req validation 1129 */ 1130 vf->num_queue_pairs = total_queue_pairs; 1131 1132 /* VF is now completely initialized */ 1133 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1134 1135 error_alloc: 1136 if (ret) 1137 i40e_free_vf_res(vf); 1138 1139 return ret; 1140 } 1141 1142 #define VF_DEVICE_STATUS 0xAA 1143 #define VF_TRANS_PENDING_MASK 0x20 1144 /** 1145 * i40e_quiesce_vf_pci 1146 * @vf: pointer to the VF structure 1147 * 1148 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1149 * if the transactions never clear. 1150 **/ 1151 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1152 { 1153 struct i40e_pf *pf = vf->pf; 1154 struct i40e_hw *hw = &pf->hw; 1155 int vf_abs_id, i; 1156 u32 reg; 1157 1158 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1159 1160 wr32(hw, I40E_PF_PCI_CIAA, 1161 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1162 for (i = 0; i < 100; i++) { 1163 reg = rd32(hw, I40E_PF_PCI_CIAD); 1164 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1165 return 0; 1166 udelay(1); 1167 } 1168 return -EIO; 1169 } 1170 1171 /** 1172 * __i40e_getnum_vf_vsi_vlan_filters 1173 * @vsi: pointer to the vsi 1174 * 1175 * called to get the number of VLANs offloaded on this VF 1176 **/ 1177 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1178 { 1179 struct i40e_mac_filter *f; 1180 u16 num_vlans = 0, bkt; 1181 1182 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1183 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1184 num_vlans++; 1185 } 1186 1187 return num_vlans; 1188 } 1189 1190 /** 1191 * i40e_getnum_vf_vsi_vlan_filters 1192 * @vsi: pointer to the vsi 1193 * 1194 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1195 **/ 1196 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1197 { 1198 int num_vlans; 1199 1200 spin_lock_bh(&vsi->mac_filter_hash_lock); 1201 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1202 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1203 1204 return num_vlans; 1205 } 1206 1207 /** 1208 * i40e_get_vlan_list_sync 1209 * @vsi: pointer to the VSI 1210 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1211 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1212 * This array is allocated here, but has to be freed in caller. 1213 * 1214 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1215 **/ 1216 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1217 s16 **vlan_list) 1218 { 1219 struct i40e_mac_filter *f; 1220 int i = 0; 1221 int bkt; 1222 1223 spin_lock_bh(&vsi->mac_filter_hash_lock); 1224 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1225 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1226 if (!(*vlan_list)) 1227 goto err; 1228 1229 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1230 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1231 continue; 1232 (*vlan_list)[i++] = f->vlan; 1233 } 1234 err: 1235 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1236 } 1237 1238 /** 1239 * i40e_set_vsi_promisc 1240 * @vf: pointer to the VF struct 1241 * @seid: VSI number 1242 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1243 * for a given VLAN 1244 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1245 * for a given VLAN 1246 * @vl: List of VLANs - apply filter for given VLANs 1247 * @num_vlans: Number of elements in @vl 1248 **/ 1249 static i40e_status 1250 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1251 bool unicast_enable, s16 *vl, u16 num_vlans) 1252 { 1253 i40e_status aq_ret, aq_tmp = 0; 1254 struct i40e_pf *pf = vf->pf; 1255 struct i40e_hw *hw = &pf->hw; 1256 int i; 1257 1258 /* No VLAN to set promisc on, set on VSI */ 1259 if (!num_vlans || !vl) { 1260 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1261 multi_enable, 1262 NULL); 1263 if (aq_ret) { 1264 int aq_err = pf->hw.aq.asq_last_status; 1265 1266 dev_err(&pf->pdev->dev, 1267 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1268 vf->vf_id, 1269 i40e_stat_str(&pf->hw, aq_ret), 1270 i40e_aq_str(&pf->hw, aq_err)); 1271 1272 return aq_ret; 1273 } 1274 1275 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1276 unicast_enable, 1277 NULL, true); 1278 1279 if (aq_ret) { 1280 int aq_err = pf->hw.aq.asq_last_status; 1281 1282 dev_err(&pf->pdev->dev, 1283 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1284 vf->vf_id, 1285 i40e_stat_str(&pf->hw, aq_ret), 1286 i40e_aq_str(&pf->hw, aq_err)); 1287 } 1288 1289 return aq_ret; 1290 } 1291 1292 for (i = 0; i < num_vlans; i++) { 1293 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1294 multi_enable, 1295 vl[i], NULL); 1296 if (aq_ret) { 1297 int aq_err = pf->hw.aq.asq_last_status; 1298 1299 dev_err(&pf->pdev->dev, 1300 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1301 vf->vf_id, 1302 i40e_stat_str(&pf->hw, aq_ret), 1303 i40e_aq_str(&pf->hw, aq_err)); 1304 1305 if (!aq_tmp) 1306 aq_tmp = aq_ret; 1307 } 1308 1309 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1310 unicast_enable, 1311 vl[i], NULL); 1312 if (aq_ret) { 1313 int aq_err = pf->hw.aq.asq_last_status; 1314 1315 dev_err(&pf->pdev->dev, 1316 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1317 vf->vf_id, 1318 i40e_stat_str(&pf->hw, aq_ret), 1319 i40e_aq_str(&pf->hw, aq_err)); 1320 1321 if (!aq_tmp) 1322 aq_tmp = aq_ret; 1323 } 1324 } 1325 1326 if (aq_tmp) 1327 aq_ret = aq_tmp; 1328 1329 return aq_ret; 1330 } 1331 1332 /** 1333 * i40e_config_vf_promiscuous_mode 1334 * @vf: pointer to the VF info 1335 * @vsi_id: VSI id 1336 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1337 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1338 * 1339 * Called from the VF to configure the promiscuous mode of 1340 * VF vsis and from the VF reset path to reset promiscuous mode. 1341 **/ 1342 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1343 u16 vsi_id, 1344 bool allmulti, 1345 bool alluni) 1346 { 1347 i40e_status aq_ret = I40E_SUCCESS; 1348 struct i40e_pf *pf = vf->pf; 1349 struct i40e_vsi *vsi; 1350 u16 num_vlans; 1351 s16 *vl; 1352 1353 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1354 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1355 return I40E_ERR_PARAM; 1356 1357 if (vf->port_vlan_id) { 1358 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1359 alluni, &vf->port_vlan_id, 1); 1360 return aq_ret; 1361 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1362 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1363 1364 if (!vl) 1365 return I40E_ERR_NO_MEMORY; 1366 1367 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1368 vl, num_vlans); 1369 kfree(vl); 1370 return aq_ret; 1371 } 1372 1373 /* no VLANs to set on, set on VSI */ 1374 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1375 NULL, 0); 1376 return aq_ret; 1377 } 1378 1379 /** 1380 * i40e_trigger_vf_reset 1381 * @vf: pointer to the VF structure 1382 * @flr: VFLR was issued or not 1383 * 1384 * Trigger hardware to start a reset for a particular VF. Expects the caller 1385 * to wait the proper amount of time to allow hardware to reset the VF before 1386 * it cleans up and restores VF functionality. 1387 **/ 1388 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1389 { 1390 struct i40e_pf *pf = vf->pf; 1391 struct i40e_hw *hw = &pf->hw; 1392 u32 reg, reg_idx, bit_idx; 1393 1394 /* warn the VF */ 1395 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1396 1397 /* Disable VF's configuration API during reset. The flag is re-enabled 1398 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1399 * It's normally disabled in i40e_free_vf_res(), but it's safer 1400 * to do it earlier to give some time to finish to any VF config 1401 * functions that may still be running at this point. 1402 */ 1403 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1404 1405 /* In the case of a VFLR, the HW has already reset the VF and we 1406 * just need to clean up, so don't hit the VFRTRIG register. 1407 */ 1408 if (!flr) { 1409 /* reset VF using VPGEN_VFRTRIG reg */ 1410 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1411 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1412 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1413 i40e_flush(hw); 1414 } 1415 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1416 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1417 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1418 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1419 i40e_flush(hw); 1420 1421 if (i40e_quiesce_vf_pci(vf)) 1422 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1423 vf->vf_id); 1424 } 1425 1426 /** 1427 * i40e_cleanup_reset_vf 1428 * @vf: pointer to the VF structure 1429 * 1430 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1431 * have verified whether the reset is finished properly, and ensure the 1432 * minimum amount of wait time has passed. 1433 **/ 1434 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1435 { 1436 struct i40e_pf *pf = vf->pf; 1437 struct i40e_hw *hw = &pf->hw; 1438 u32 reg; 1439 1440 /* disable promisc modes in case they were enabled */ 1441 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1442 1443 /* free VF resources to begin resetting the VSI state */ 1444 i40e_free_vf_res(vf); 1445 1446 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1447 * By doing this we allow HW to access VF memory at any point. If we 1448 * did it any sooner, HW could access memory while it was being freed 1449 * in i40e_free_vf_res(), causing an IOMMU fault. 1450 * 1451 * On the other hand, this needs to be done ASAP, because the VF driver 1452 * is waiting for this to happen and may report a timeout. It's 1453 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1454 * it. 1455 */ 1456 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1457 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1458 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1459 1460 /* reallocate VF resources to finish resetting the VSI state */ 1461 if (!i40e_alloc_vf_res(vf)) { 1462 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1463 i40e_enable_vf_mappings(vf); 1464 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1465 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1466 /* Do not notify the client during VF init */ 1467 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1468 &vf->vf_states)) 1469 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1470 vf->num_vlan = 0; 1471 } 1472 1473 /* Tell the VF driver the reset is done. This needs to be done only 1474 * after VF has been fully initialized, because the VF driver may 1475 * request resources immediately after setting this flag. 1476 */ 1477 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1478 } 1479 1480 /** 1481 * i40e_reset_vf 1482 * @vf: pointer to the VF structure 1483 * @flr: VFLR was issued or not 1484 * 1485 * Returns true if the VF is in reset, resets successfully, or resets 1486 * are disabled and false otherwise. 1487 **/ 1488 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1489 { 1490 struct i40e_pf *pf = vf->pf; 1491 struct i40e_hw *hw = &pf->hw; 1492 bool rsd = false; 1493 u32 reg; 1494 int i; 1495 1496 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1497 return true; 1498 1499 /* If the VFs have been disabled, this means something else is 1500 * resetting the VF, so we shouldn't continue. 1501 */ 1502 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1503 return true; 1504 1505 i40e_trigger_vf_reset(vf, flr); 1506 1507 /* poll VPGEN_VFRSTAT reg to make sure 1508 * that reset is complete 1509 */ 1510 for (i = 0; i < 10; i++) { 1511 /* VF reset requires driver to first reset the VF and then 1512 * poll the status register to make sure that the reset 1513 * completed successfully. Due to internal HW FIFO flushes, 1514 * we must wait 10ms before the register will be valid. 1515 */ 1516 usleep_range(10000, 20000); 1517 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1518 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1519 rsd = true; 1520 break; 1521 } 1522 } 1523 1524 if (flr) 1525 usleep_range(10000, 20000); 1526 1527 if (!rsd) 1528 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1529 vf->vf_id); 1530 usleep_range(10000, 20000); 1531 1532 /* On initial reset, we don't have any queues to disable */ 1533 if (vf->lan_vsi_idx != 0) 1534 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1535 1536 i40e_cleanup_reset_vf(vf); 1537 1538 i40e_flush(hw); 1539 clear_bit(__I40E_VF_DISABLE, pf->state); 1540 1541 return true; 1542 } 1543 1544 /** 1545 * i40e_reset_all_vfs 1546 * @pf: pointer to the PF structure 1547 * @flr: VFLR was issued or not 1548 * 1549 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1550 * VF, then do all the waiting in one chunk, and finally finish restoring each 1551 * VF after the wait. This is useful during PF routines which need to reset 1552 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1553 * 1554 * Returns true if any VFs were reset, and false otherwise. 1555 **/ 1556 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1557 { 1558 struct i40e_hw *hw = &pf->hw; 1559 struct i40e_vf *vf; 1560 int i, v; 1561 u32 reg; 1562 1563 /* If we don't have any VFs, then there is nothing to reset */ 1564 if (!pf->num_alloc_vfs) 1565 return false; 1566 1567 /* If VFs have been disabled, there is no need to reset */ 1568 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1569 return false; 1570 1571 /* Begin reset on all VFs at once */ 1572 for (v = 0; v < pf->num_alloc_vfs; v++) 1573 i40e_trigger_vf_reset(&pf->vf[v], flr); 1574 1575 /* HW requires some time to make sure it can flush the FIFO for a VF 1576 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1577 * sequence to make sure that it has completed. We'll keep track of 1578 * the VFs using a simple iterator that increments once that VF has 1579 * finished resetting. 1580 */ 1581 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1582 usleep_range(10000, 20000); 1583 1584 /* Check each VF in sequence, beginning with the VF to fail 1585 * the previous check. 1586 */ 1587 while (v < pf->num_alloc_vfs) { 1588 vf = &pf->vf[v]; 1589 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1590 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1591 break; 1592 1593 /* If the current VF has finished resetting, move on 1594 * to the next VF in sequence. 1595 */ 1596 v++; 1597 } 1598 } 1599 1600 if (flr) 1601 usleep_range(10000, 20000); 1602 1603 /* Display a warning if at least one VF didn't manage to reset in 1604 * time, but continue on with the operation. 1605 */ 1606 if (v < pf->num_alloc_vfs) 1607 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1608 pf->vf[v].vf_id); 1609 usleep_range(10000, 20000); 1610 1611 /* Begin disabling all the rings associated with VFs, but do not wait 1612 * between each VF. 1613 */ 1614 for (v = 0; v < pf->num_alloc_vfs; v++) { 1615 /* On initial reset, we don't have any queues to disable */ 1616 if (pf->vf[v].lan_vsi_idx == 0) 1617 continue; 1618 1619 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1620 } 1621 1622 /* Now that we've notified HW to disable all of the VF rings, wait 1623 * until they finish. 1624 */ 1625 for (v = 0; v < pf->num_alloc_vfs; v++) { 1626 /* On initial reset, we don't have any queues to disable */ 1627 if (pf->vf[v].lan_vsi_idx == 0) 1628 continue; 1629 1630 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1631 } 1632 1633 /* Hw may need up to 50ms to finish disabling the RX queues. We 1634 * minimize the wait by delaying only once for all VFs. 1635 */ 1636 mdelay(50); 1637 1638 /* Finish the reset on each VF */ 1639 for (v = 0; v < pf->num_alloc_vfs; v++) 1640 i40e_cleanup_reset_vf(&pf->vf[v]); 1641 1642 i40e_flush(hw); 1643 clear_bit(__I40E_VF_DISABLE, pf->state); 1644 1645 return true; 1646 } 1647 1648 /** 1649 * i40e_free_vfs 1650 * @pf: pointer to the PF structure 1651 * 1652 * free VF resources 1653 **/ 1654 void i40e_free_vfs(struct i40e_pf *pf) 1655 { 1656 struct i40e_hw *hw = &pf->hw; 1657 u32 reg_idx, bit_idx; 1658 int i, tmp, vf_id; 1659 1660 if (!pf->vf) 1661 return; 1662 1663 set_bit(__I40E_VFS_RELEASING, pf->state); 1664 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1665 usleep_range(1000, 2000); 1666 1667 i40e_notify_client_of_vf_enable(pf, 0); 1668 1669 /* Disable IOV before freeing resources. This lets any VF drivers 1670 * running in the host get themselves cleaned up before we yank 1671 * the carpet out from underneath their feet. 1672 */ 1673 if (!pci_vfs_assigned(pf->pdev)) 1674 pci_disable_sriov(pf->pdev); 1675 else 1676 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1677 1678 /* Amortize wait time by stopping all VFs at the same time */ 1679 for (i = 0; i < pf->num_alloc_vfs; i++) { 1680 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1681 continue; 1682 1683 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1684 } 1685 1686 for (i = 0; i < pf->num_alloc_vfs; i++) { 1687 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1688 continue; 1689 1690 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1691 } 1692 1693 /* free up VF resources */ 1694 tmp = pf->num_alloc_vfs; 1695 pf->num_alloc_vfs = 0; 1696 for (i = 0; i < tmp; i++) { 1697 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1698 i40e_free_vf_res(&pf->vf[i]); 1699 /* disable qp mappings */ 1700 i40e_disable_vf_mappings(&pf->vf[i]); 1701 } 1702 1703 kfree(pf->vf); 1704 pf->vf = NULL; 1705 1706 /* This check is for when the driver is unloaded while VFs are 1707 * assigned. Setting the number of VFs to 0 through sysfs is caught 1708 * before this function ever gets called. 1709 */ 1710 if (!pci_vfs_assigned(pf->pdev)) { 1711 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1712 * work correctly when SR-IOV gets re-enabled. 1713 */ 1714 for (vf_id = 0; vf_id < tmp; vf_id++) { 1715 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1716 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1717 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1718 } 1719 } 1720 clear_bit(__I40E_VF_DISABLE, pf->state); 1721 clear_bit(__I40E_VFS_RELEASING, pf->state); 1722 } 1723 1724 #ifdef CONFIG_PCI_IOV 1725 /** 1726 * i40e_alloc_vfs 1727 * @pf: pointer to the PF structure 1728 * @num_alloc_vfs: number of VFs to allocate 1729 * 1730 * allocate VF resources 1731 **/ 1732 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1733 { 1734 struct i40e_vf *vfs; 1735 int i, ret = 0; 1736 1737 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1738 i40e_irq_dynamic_disable_icr0(pf); 1739 1740 /* Check to see if we're just allocating resources for extant VFs */ 1741 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1742 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1743 if (ret) { 1744 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1745 pf->num_alloc_vfs = 0; 1746 goto err_iov; 1747 } 1748 } 1749 /* allocate memory */ 1750 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1751 if (!vfs) { 1752 ret = -ENOMEM; 1753 goto err_alloc; 1754 } 1755 pf->vf = vfs; 1756 1757 /* apply default profile */ 1758 for (i = 0; i < num_alloc_vfs; i++) { 1759 vfs[i].pf = pf; 1760 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1761 vfs[i].vf_id = i; 1762 1763 /* assign default capabilities */ 1764 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1765 vfs[i].spoofchk = true; 1766 1767 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1768 1769 } 1770 pf->num_alloc_vfs = num_alloc_vfs; 1771 1772 /* VF resources get allocated during reset */ 1773 i40e_reset_all_vfs(pf, false); 1774 1775 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1776 1777 err_alloc: 1778 if (ret) 1779 i40e_free_vfs(pf); 1780 err_iov: 1781 /* Re-enable interrupt 0. */ 1782 i40e_irq_dynamic_enable_icr0(pf); 1783 return ret; 1784 } 1785 1786 #endif 1787 /** 1788 * i40e_pci_sriov_enable 1789 * @pdev: pointer to a pci_dev structure 1790 * @num_vfs: number of VFs to allocate 1791 * 1792 * Enable or change the number of VFs 1793 **/ 1794 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1795 { 1796 #ifdef CONFIG_PCI_IOV 1797 struct i40e_pf *pf = pci_get_drvdata(pdev); 1798 int pre_existing_vfs = pci_num_vf(pdev); 1799 int err = 0; 1800 1801 if (test_bit(__I40E_TESTING, pf->state)) { 1802 dev_warn(&pdev->dev, 1803 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1804 err = -EPERM; 1805 goto err_out; 1806 } 1807 1808 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1809 i40e_free_vfs(pf); 1810 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1811 goto out; 1812 1813 if (num_vfs > pf->num_req_vfs) { 1814 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1815 num_vfs, pf->num_req_vfs); 1816 err = -EPERM; 1817 goto err_out; 1818 } 1819 1820 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1821 err = i40e_alloc_vfs(pf, num_vfs); 1822 if (err) { 1823 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1824 goto err_out; 1825 } 1826 1827 out: 1828 return num_vfs; 1829 1830 err_out: 1831 return err; 1832 #endif 1833 return 0; 1834 } 1835 1836 /** 1837 * i40e_pci_sriov_configure 1838 * @pdev: pointer to a pci_dev structure 1839 * @num_vfs: number of VFs to allocate 1840 * 1841 * Enable or change the number of VFs. Called when the user updates the number 1842 * of VFs in sysfs. 1843 **/ 1844 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1845 { 1846 struct i40e_pf *pf = pci_get_drvdata(pdev); 1847 int ret = 0; 1848 1849 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1850 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1851 return -EAGAIN; 1852 } 1853 1854 if (num_vfs) { 1855 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1856 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1857 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1858 } 1859 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1860 goto sriov_configure_out; 1861 } 1862 1863 if (!pci_vfs_assigned(pf->pdev)) { 1864 i40e_free_vfs(pf); 1865 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1866 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1867 } else { 1868 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1869 ret = -EINVAL; 1870 goto sriov_configure_out; 1871 } 1872 sriov_configure_out: 1873 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1874 return ret; 1875 } 1876 1877 /***********************virtual channel routines******************/ 1878 1879 /** 1880 * i40e_vc_send_msg_to_vf_ex 1881 * @vf: pointer to the VF info 1882 * @v_opcode: virtual channel opcode 1883 * @v_retval: virtual channel return value 1884 * @msg: pointer to the msg buffer 1885 * @msglen: msg length 1886 * @is_quiet: true for not printing unsuccessful return values, false otherwise 1887 * 1888 * send msg to VF 1889 **/ 1890 static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode, 1891 u32 v_retval, u8 *msg, u16 msglen, 1892 bool is_quiet) 1893 { 1894 struct i40e_pf *pf; 1895 struct i40e_hw *hw; 1896 int abs_vf_id; 1897 i40e_status aq_ret; 1898 1899 /* validate the request */ 1900 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1901 return -EINVAL; 1902 1903 pf = vf->pf; 1904 hw = &pf->hw; 1905 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1906 1907 /* single place to detect unsuccessful return values */ 1908 if (v_retval && !is_quiet) { 1909 vf->num_invalid_msgs++; 1910 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1911 vf->vf_id, v_opcode, v_retval); 1912 if (vf->num_invalid_msgs > 1913 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1914 dev_err(&pf->pdev->dev, 1915 "Number of invalid messages exceeded for VF %d\n", 1916 vf->vf_id); 1917 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1918 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1919 } 1920 } else { 1921 vf->num_valid_msgs++; 1922 /* reset the invalid counter, if a valid message is received. */ 1923 vf->num_invalid_msgs = 0; 1924 } 1925 1926 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1927 msg, msglen, NULL); 1928 if (aq_ret) { 1929 dev_info(&pf->pdev->dev, 1930 "Unable to send the message to VF %d aq_err %d\n", 1931 vf->vf_id, pf->hw.aq.asq_last_status); 1932 return -EIO; 1933 } 1934 1935 return 0; 1936 } 1937 1938 /** 1939 * i40e_vc_send_msg_to_vf 1940 * @vf: pointer to the VF info 1941 * @v_opcode: virtual channel opcode 1942 * @v_retval: virtual channel return value 1943 * @msg: pointer to the msg buffer 1944 * @msglen: msg length 1945 * 1946 * send msg to VF 1947 **/ 1948 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1949 u32 v_retval, u8 *msg, u16 msglen) 1950 { 1951 return i40e_vc_send_msg_to_vf_ex(vf, v_opcode, v_retval, 1952 msg, msglen, false); 1953 } 1954 1955 /** 1956 * i40e_vc_send_resp_to_vf 1957 * @vf: pointer to the VF info 1958 * @opcode: operation code 1959 * @retval: return value 1960 * 1961 * send resp msg to VF 1962 **/ 1963 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1964 enum virtchnl_ops opcode, 1965 i40e_status retval) 1966 { 1967 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1968 } 1969 1970 /** 1971 * i40e_sync_vf_state 1972 * @vf: pointer to the VF info 1973 * @state: VF state 1974 * 1975 * Called from a VF message to synchronize the service with a potential 1976 * VF reset state 1977 **/ 1978 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 1979 { 1980 int i; 1981 1982 /* When handling some messages, it needs VF state to be set. 1983 * It is possible that this flag is cleared during VF reset, 1984 * so there is a need to wait until the end of the reset to 1985 * handle the request message correctly. 1986 */ 1987 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 1988 if (test_bit(state, &vf->vf_states)) 1989 return true; 1990 usleep_range(10000, 20000); 1991 } 1992 1993 return test_bit(state, &vf->vf_states); 1994 } 1995 1996 /** 1997 * i40e_vc_get_version_msg 1998 * @vf: pointer to the VF info 1999 * @msg: pointer to the msg buffer 2000 * 2001 * called from the VF to request the API version used by the PF 2002 **/ 2003 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2004 { 2005 struct virtchnl_version_info info = { 2006 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2007 }; 2008 2009 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2010 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2011 if (VF_IS_V10(&vf->vf_ver)) 2012 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2013 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2014 I40E_SUCCESS, (u8 *)&info, 2015 sizeof(struct virtchnl_version_info)); 2016 } 2017 2018 /** 2019 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2020 * @vf: pointer to VF structure 2021 **/ 2022 static void i40e_del_qch(struct i40e_vf *vf) 2023 { 2024 struct i40e_pf *pf = vf->pf; 2025 int i; 2026 2027 /* first element in the array belongs to primary VF VSI and we shouldn't 2028 * delete it. We should however delete the rest of the VSIs created 2029 */ 2030 for (i = 1; i < vf->num_tc; i++) { 2031 if (vf->ch[i].vsi_idx) { 2032 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2033 vf->ch[i].vsi_idx = 0; 2034 vf->ch[i].vsi_id = 0; 2035 } 2036 } 2037 } 2038 2039 /** 2040 * i40e_vc_get_vf_resources_msg 2041 * @vf: pointer to the VF info 2042 * @msg: pointer to the msg buffer 2043 * 2044 * called from the VF to request its resources 2045 **/ 2046 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2047 { 2048 struct virtchnl_vf_resource *vfres = NULL; 2049 struct i40e_pf *pf = vf->pf; 2050 i40e_status aq_ret = 0; 2051 struct i40e_vsi *vsi; 2052 int num_vsis = 1; 2053 size_t len = 0; 2054 int ret; 2055 2056 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2057 aq_ret = I40E_ERR_PARAM; 2058 goto err; 2059 } 2060 2061 len = struct_size(vfres, vsi_res, num_vsis); 2062 vfres = kzalloc(len, GFP_KERNEL); 2063 if (!vfres) { 2064 aq_ret = I40E_ERR_NO_MEMORY; 2065 len = 0; 2066 goto err; 2067 } 2068 if (VF_IS_V11(&vf->vf_ver)) 2069 vf->driver_caps = *(u32 *)msg; 2070 else 2071 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2072 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2073 VIRTCHNL_VF_OFFLOAD_VLAN; 2074 2075 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2076 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2077 vsi = pf->vsi[vf->lan_vsi_idx]; 2078 if (!vsi->info.pvid) 2079 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2080 2081 if (i40e_vf_client_capable(pf, vf->vf_id) && 2082 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 2083 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 2084 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2085 } else { 2086 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2087 } 2088 2089 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2090 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2091 } else { 2092 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2093 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2094 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2095 else 2096 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2097 } 2098 2099 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2100 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2101 vfres->vf_cap_flags |= 2102 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2103 } 2104 2105 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2106 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2107 2108 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2109 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2110 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2111 2112 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2113 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2114 dev_err(&pf->pdev->dev, 2115 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2116 vf->vf_id); 2117 aq_ret = I40E_ERR_PARAM; 2118 goto err; 2119 } 2120 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2121 } 2122 2123 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2124 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2125 vfres->vf_cap_flags |= 2126 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2127 } 2128 2129 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2130 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2131 2132 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2133 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2134 2135 vfres->num_vsis = num_vsis; 2136 vfres->num_queue_pairs = vf->num_queue_pairs; 2137 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2138 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2139 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2140 2141 if (vf->lan_vsi_idx) { 2142 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2143 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2144 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2145 /* VFs only use TC 0 */ 2146 vfres->vsi_res[0].qset_handle 2147 = le16_to_cpu(vsi->info.qs_handle[0]); 2148 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2149 vf->default_lan_addr.addr); 2150 } 2151 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2152 2153 err: 2154 /* send the response back to the VF */ 2155 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2156 aq_ret, (u8 *)vfres, len); 2157 2158 kfree(vfres); 2159 return ret; 2160 } 2161 2162 /** 2163 * i40e_vc_config_promiscuous_mode_msg 2164 * @vf: pointer to the VF info 2165 * @msg: pointer to the msg buffer 2166 * 2167 * called from the VF to configure the promiscuous mode of 2168 * VF vsis 2169 **/ 2170 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2171 { 2172 struct virtchnl_promisc_info *info = 2173 (struct virtchnl_promisc_info *)msg; 2174 struct i40e_pf *pf = vf->pf; 2175 i40e_status aq_ret = 0; 2176 bool allmulti = false; 2177 bool alluni = false; 2178 2179 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2180 aq_ret = I40E_ERR_PARAM; 2181 goto err_out; 2182 } 2183 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2184 dev_err(&pf->pdev->dev, 2185 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2186 vf->vf_id); 2187 2188 /* Lie to the VF on purpose, because this is an error we can 2189 * ignore. Unprivileged VF is not a virtual channel error. 2190 */ 2191 aq_ret = 0; 2192 goto err_out; 2193 } 2194 2195 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2196 aq_ret = I40E_ERR_PARAM; 2197 goto err_out; 2198 } 2199 2200 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2201 aq_ret = I40E_ERR_PARAM; 2202 goto err_out; 2203 } 2204 2205 /* Multicast promiscuous handling*/ 2206 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2207 allmulti = true; 2208 2209 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2210 alluni = true; 2211 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2212 alluni); 2213 if (aq_ret) 2214 goto err_out; 2215 2216 if (allmulti) { 2217 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2218 &vf->vf_states)) 2219 dev_info(&pf->pdev->dev, 2220 "VF %d successfully set multicast promiscuous mode\n", 2221 vf->vf_id); 2222 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2223 &vf->vf_states)) 2224 dev_info(&pf->pdev->dev, 2225 "VF %d successfully unset multicast promiscuous mode\n", 2226 vf->vf_id); 2227 2228 if (alluni) { 2229 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2230 &vf->vf_states)) 2231 dev_info(&pf->pdev->dev, 2232 "VF %d successfully set unicast promiscuous mode\n", 2233 vf->vf_id); 2234 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2235 &vf->vf_states)) 2236 dev_info(&pf->pdev->dev, 2237 "VF %d successfully unset unicast promiscuous mode\n", 2238 vf->vf_id); 2239 2240 err_out: 2241 /* send the response to the VF */ 2242 return i40e_vc_send_resp_to_vf(vf, 2243 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2244 aq_ret); 2245 } 2246 2247 /** 2248 * i40e_vc_config_queues_msg 2249 * @vf: pointer to the VF info 2250 * @msg: pointer to the msg buffer 2251 * 2252 * called from the VF to configure the rx/tx 2253 * queues 2254 **/ 2255 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2256 { 2257 struct virtchnl_vsi_queue_config_info *qci = 2258 (struct virtchnl_vsi_queue_config_info *)msg; 2259 struct virtchnl_queue_pair_info *qpi; 2260 u16 vsi_id, vsi_queue_id = 0; 2261 struct i40e_pf *pf = vf->pf; 2262 i40e_status aq_ret = 0; 2263 int i, j = 0, idx = 0; 2264 struct i40e_vsi *vsi; 2265 u16 num_qps_all = 0; 2266 2267 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2268 aq_ret = I40E_ERR_PARAM; 2269 goto error_param; 2270 } 2271 2272 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2273 aq_ret = I40E_ERR_PARAM; 2274 goto error_param; 2275 } 2276 2277 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2278 aq_ret = I40E_ERR_PARAM; 2279 goto error_param; 2280 } 2281 2282 if (vf->adq_enabled) { 2283 for (i = 0; i < I40E_MAX_VF_VSI; i++) 2284 num_qps_all += vf->ch[i].num_qps; 2285 if (num_qps_all != qci->num_queue_pairs) { 2286 aq_ret = I40E_ERR_PARAM; 2287 goto error_param; 2288 } 2289 } 2290 2291 vsi_id = qci->vsi_id; 2292 2293 for (i = 0; i < qci->num_queue_pairs; i++) { 2294 qpi = &qci->qpair[i]; 2295 2296 if (!vf->adq_enabled) { 2297 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2298 qpi->txq.queue_id)) { 2299 aq_ret = I40E_ERR_PARAM; 2300 goto error_param; 2301 } 2302 2303 vsi_queue_id = qpi->txq.queue_id; 2304 2305 if (qpi->txq.vsi_id != qci->vsi_id || 2306 qpi->rxq.vsi_id != qci->vsi_id || 2307 qpi->rxq.queue_id != vsi_queue_id) { 2308 aq_ret = I40E_ERR_PARAM; 2309 goto error_param; 2310 } 2311 } 2312 2313 if (vf->adq_enabled) { 2314 if (idx >= ARRAY_SIZE(vf->ch)) { 2315 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2316 goto error_param; 2317 } 2318 vsi_id = vf->ch[idx].vsi_id; 2319 } 2320 2321 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2322 &qpi->rxq) || 2323 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2324 &qpi->txq)) { 2325 aq_ret = I40E_ERR_PARAM; 2326 goto error_param; 2327 } 2328 2329 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2330 * VF does not know about these additional VSIs and all 2331 * it cares is about its own queues. PF configures these queues 2332 * to its appropriate VSIs based on TC mapping 2333 */ 2334 if (vf->adq_enabled) { 2335 if (idx >= ARRAY_SIZE(vf->ch)) { 2336 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2337 goto error_param; 2338 } 2339 if (j == (vf->ch[idx].num_qps - 1)) { 2340 idx++; 2341 j = 0; /* resetting the queue count */ 2342 vsi_queue_id = 0; 2343 } else { 2344 j++; 2345 vsi_queue_id++; 2346 } 2347 } 2348 } 2349 /* set vsi num_queue_pairs in use to num configured by VF */ 2350 if (!vf->adq_enabled) { 2351 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2352 qci->num_queue_pairs; 2353 } else { 2354 for (i = 0; i < vf->num_tc; i++) { 2355 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2356 vsi->num_queue_pairs = vf->ch[i].num_qps; 2357 2358 if (i40e_update_adq_vsi_queues(vsi, i)) { 2359 aq_ret = I40E_ERR_CONFIG; 2360 goto error_param; 2361 } 2362 } 2363 } 2364 2365 error_param: 2366 /* send the response to the VF */ 2367 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2368 aq_ret); 2369 } 2370 2371 /** 2372 * i40e_validate_queue_map - check queue map is valid 2373 * @vf: the VF structure pointer 2374 * @vsi_id: vsi id 2375 * @queuemap: Tx or Rx queue map 2376 * 2377 * check if Tx or Rx queue map is valid 2378 **/ 2379 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2380 unsigned long queuemap) 2381 { 2382 u16 vsi_queue_id, queue_id; 2383 2384 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2385 if (vf->adq_enabled) { 2386 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2387 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2388 } else { 2389 queue_id = vsi_queue_id; 2390 } 2391 2392 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2393 return -EINVAL; 2394 } 2395 2396 return 0; 2397 } 2398 2399 /** 2400 * i40e_vc_config_irq_map_msg 2401 * @vf: pointer to the VF info 2402 * @msg: pointer to the msg buffer 2403 * 2404 * called from the VF to configure the irq to 2405 * queue map 2406 **/ 2407 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2408 { 2409 struct virtchnl_irq_map_info *irqmap_info = 2410 (struct virtchnl_irq_map_info *)msg; 2411 struct virtchnl_vector_map *map; 2412 u16 vsi_id; 2413 i40e_status aq_ret = 0; 2414 int i; 2415 2416 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2417 aq_ret = I40E_ERR_PARAM; 2418 goto error_param; 2419 } 2420 2421 if (irqmap_info->num_vectors > 2422 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2423 aq_ret = I40E_ERR_PARAM; 2424 goto error_param; 2425 } 2426 2427 for (i = 0; i < irqmap_info->num_vectors; i++) { 2428 map = &irqmap_info->vecmap[i]; 2429 /* validate msg params */ 2430 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2431 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2432 aq_ret = I40E_ERR_PARAM; 2433 goto error_param; 2434 } 2435 vsi_id = map->vsi_id; 2436 2437 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2438 aq_ret = I40E_ERR_PARAM; 2439 goto error_param; 2440 } 2441 2442 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2443 aq_ret = I40E_ERR_PARAM; 2444 goto error_param; 2445 } 2446 2447 i40e_config_irq_link_list(vf, vsi_id, map); 2448 } 2449 error_param: 2450 /* send the response to the VF */ 2451 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2452 aq_ret); 2453 } 2454 2455 /** 2456 * i40e_ctrl_vf_tx_rings 2457 * @vsi: the SRIOV VSI being configured 2458 * @q_map: bit map of the queues to be enabled 2459 * @enable: start or stop the queue 2460 **/ 2461 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2462 bool enable) 2463 { 2464 struct i40e_pf *pf = vsi->back; 2465 int ret = 0; 2466 u16 q_id; 2467 2468 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2469 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2470 vsi->base_queue + q_id, 2471 false /*is xdp*/, enable); 2472 if (ret) 2473 break; 2474 } 2475 return ret; 2476 } 2477 2478 /** 2479 * i40e_ctrl_vf_rx_rings 2480 * @vsi: the SRIOV VSI being configured 2481 * @q_map: bit map of the queues to be enabled 2482 * @enable: start or stop the queue 2483 **/ 2484 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2485 bool enable) 2486 { 2487 struct i40e_pf *pf = vsi->back; 2488 int ret = 0; 2489 u16 q_id; 2490 2491 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2492 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2493 enable); 2494 if (ret) 2495 break; 2496 } 2497 return ret; 2498 } 2499 2500 /** 2501 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2502 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2503 * 2504 * Returns true if validation was successful, else false. 2505 */ 2506 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2507 { 2508 if ((!vqs->rx_queues && !vqs->tx_queues) || 2509 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2510 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2511 return false; 2512 2513 return true; 2514 } 2515 2516 /** 2517 * i40e_vc_enable_queues_msg 2518 * @vf: pointer to the VF info 2519 * @msg: pointer to the msg buffer 2520 * 2521 * called from the VF to enable all or specific queue(s) 2522 **/ 2523 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2524 { 2525 struct virtchnl_queue_select *vqs = 2526 (struct virtchnl_queue_select *)msg; 2527 struct i40e_pf *pf = vf->pf; 2528 i40e_status aq_ret = 0; 2529 int i; 2530 2531 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2532 aq_ret = I40E_ERR_PARAM; 2533 goto error_param; 2534 } 2535 2536 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2537 aq_ret = I40E_ERR_PARAM; 2538 goto error_param; 2539 } 2540 2541 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2542 aq_ret = I40E_ERR_PARAM; 2543 goto error_param; 2544 } 2545 2546 /* Use the queue bit map sent by the VF */ 2547 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2548 true)) { 2549 aq_ret = I40E_ERR_TIMEOUT; 2550 goto error_param; 2551 } 2552 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2553 true)) { 2554 aq_ret = I40E_ERR_TIMEOUT; 2555 goto error_param; 2556 } 2557 2558 /* need to start the rings for additional ADq VSI's as well */ 2559 if (vf->adq_enabled) { 2560 /* zero belongs to LAN VSI */ 2561 for (i = 1; i < vf->num_tc; i++) { 2562 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2563 aq_ret = I40E_ERR_TIMEOUT; 2564 } 2565 } 2566 2567 error_param: 2568 /* send the response to the VF */ 2569 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2570 aq_ret); 2571 } 2572 2573 /** 2574 * i40e_vc_disable_queues_msg 2575 * @vf: pointer to the VF info 2576 * @msg: pointer to the msg buffer 2577 * 2578 * called from the VF to disable all or specific 2579 * queue(s) 2580 **/ 2581 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2582 { 2583 struct virtchnl_queue_select *vqs = 2584 (struct virtchnl_queue_select *)msg; 2585 struct i40e_pf *pf = vf->pf; 2586 i40e_status aq_ret = 0; 2587 2588 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2589 aq_ret = I40E_ERR_PARAM; 2590 goto error_param; 2591 } 2592 2593 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2594 aq_ret = I40E_ERR_PARAM; 2595 goto error_param; 2596 } 2597 2598 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2599 aq_ret = I40E_ERR_PARAM; 2600 goto error_param; 2601 } 2602 2603 /* Use the queue bit map sent by the VF */ 2604 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2605 false)) { 2606 aq_ret = I40E_ERR_TIMEOUT; 2607 goto error_param; 2608 } 2609 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2610 false)) { 2611 aq_ret = I40E_ERR_TIMEOUT; 2612 goto error_param; 2613 } 2614 error_param: 2615 /* send the response to the VF */ 2616 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2617 aq_ret); 2618 } 2619 2620 /** 2621 * i40e_vc_request_queues_msg 2622 * @vf: pointer to the VF info 2623 * @msg: pointer to the msg buffer 2624 * 2625 * VFs get a default number of queues but can use this message to request a 2626 * different number. If the request is successful, PF will reset the VF and 2627 * return 0. If unsuccessful, PF will send message informing VF of number of 2628 * available queues and return result of sending VF a message. 2629 **/ 2630 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2631 { 2632 struct virtchnl_vf_res_request *vfres = 2633 (struct virtchnl_vf_res_request *)msg; 2634 u16 req_pairs = vfres->num_queue_pairs; 2635 u8 cur_pairs = vf->num_queue_pairs; 2636 struct i40e_pf *pf = vf->pf; 2637 2638 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2639 return -EINVAL; 2640 2641 if (req_pairs > I40E_MAX_VF_QUEUES) { 2642 dev_err(&pf->pdev->dev, 2643 "VF %d tried to request more than %d queues.\n", 2644 vf->vf_id, 2645 I40E_MAX_VF_QUEUES); 2646 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2647 } else if (req_pairs - cur_pairs > pf->queues_left) { 2648 dev_warn(&pf->pdev->dev, 2649 "VF %d requested %d more queues, but only %d left.\n", 2650 vf->vf_id, 2651 req_pairs - cur_pairs, 2652 pf->queues_left); 2653 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2654 } else { 2655 /* successful request */ 2656 vf->num_req_queues = req_pairs; 2657 i40e_vc_reset_vf(vf, true); 2658 return 0; 2659 } 2660 2661 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2662 (u8 *)vfres, sizeof(*vfres)); 2663 } 2664 2665 /** 2666 * i40e_vc_get_stats_msg 2667 * @vf: pointer to the VF info 2668 * @msg: pointer to the msg buffer 2669 * 2670 * called from the VF to get vsi stats 2671 **/ 2672 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2673 { 2674 struct virtchnl_queue_select *vqs = 2675 (struct virtchnl_queue_select *)msg; 2676 struct i40e_pf *pf = vf->pf; 2677 struct i40e_eth_stats stats; 2678 i40e_status aq_ret = 0; 2679 struct i40e_vsi *vsi; 2680 2681 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2682 2683 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2684 aq_ret = I40E_ERR_PARAM; 2685 goto error_param; 2686 } 2687 2688 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2689 aq_ret = I40E_ERR_PARAM; 2690 goto error_param; 2691 } 2692 2693 vsi = pf->vsi[vf->lan_vsi_idx]; 2694 if (!vsi) { 2695 aq_ret = I40E_ERR_PARAM; 2696 goto error_param; 2697 } 2698 i40e_update_eth_stats(vsi); 2699 stats = vsi->eth_stats; 2700 2701 error_param: 2702 /* send the response back to the VF */ 2703 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2704 (u8 *)&stats, sizeof(stats)); 2705 } 2706 2707 #define I40E_MAX_MACVLAN_PER_HW 3072 2708 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2709 (num_ports)) 2710 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2711 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2712 */ 2713 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2714 #define I40E_VC_MAX_VLAN_PER_VF 16 2715 2716 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2717 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2718 typeof(num_ports) num_ports_ = (num_ports); \ 2719 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2720 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2721 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2722 /** 2723 * i40e_check_vf_permission 2724 * @vf: pointer to the VF info 2725 * @al: MAC address list from virtchnl 2726 * @is_quiet: set true for printing msg without opcode info, false otherwise 2727 * 2728 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2729 * if any address in the list is not valid. Checks the following conditions: 2730 * 2731 * 1) broadcast and zero addresses are never valid 2732 * 2) unicast addresses are not allowed if the VMM has administratively set 2733 * the VF MAC address, unless the VF is marked as privileged. 2734 * 3) There is enough space to add all the addresses. 2735 * 2736 * Note that to guarantee consistency, it is expected this function be called 2737 * while holding the mac_filter_hash_lock, as otherwise the current number of 2738 * addresses might not be accurate. 2739 **/ 2740 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2741 struct virtchnl_ether_addr_list *al, 2742 bool *is_quiet) 2743 { 2744 struct i40e_pf *pf = vf->pf; 2745 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2746 struct i40e_hw *hw = &pf->hw; 2747 int mac2add_cnt = 0; 2748 int i; 2749 2750 *is_quiet = false; 2751 for (i = 0; i < al->num_elements; i++) { 2752 struct i40e_mac_filter *f; 2753 u8 *addr = al->list[i].addr; 2754 2755 if (is_broadcast_ether_addr(addr) || 2756 is_zero_ether_addr(addr)) { 2757 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2758 addr); 2759 return I40E_ERR_INVALID_MAC_ADDR; 2760 } 2761 2762 /* If the host VMM administrator has set the VF MAC address 2763 * administratively via the ndo_set_vf_mac command then deny 2764 * permission to the VF to add or delete unicast MAC addresses. 2765 * Unless the VF is privileged and then it can do whatever. 2766 * The VF may request to set the MAC address filter already 2767 * assigned to it so do not return an error in that case. 2768 */ 2769 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2770 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2771 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2772 dev_err(&pf->pdev->dev, 2773 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2774 *is_quiet = true; 2775 return -EPERM; 2776 } 2777 2778 /*count filters that really will be added*/ 2779 f = i40e_find_mac(vsi, addr); 2780 if (!f) 2781 ++mac2add_cnt; 2782 } 2783 2784 /* If this VF is not privileged, then we can't add more than a limited 2785 * number of addresses. Check to make sure that the additions do not 2786 * push us over the limit. 2787 */ 2788 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2789 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2790 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2791 dev_err(&pf->pdev->dev, 2792 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2793 return -EPERM; 2794 } 2795 /* If this VF is trusted, it can use more resources than untrusted. 2796 * However to ensure that every trusted VF has appropriate number of 2797 * resources, divide whole pool of resources per port and then across 2798 * all VFs. 2799 */ 2800 } else { 2801 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2802 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2803 hw->num_ports)) { 2804 dev_err(&pf->pdev->dev, 2805 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2806 return -EPERM; 2807 } 2808 } 2809 return 0; 2810 } 2811 2812 /** 2813 * i40e_vc_add_mac_addr_msg 2814 * @vf: pointer to the VF info 2815 * @msg: pointer to the msg buffer 2816 * 2817 * add guest mac address filter 2818 **/ 2819 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2820 { 2821 struct virtchnl_ether_addr_list *al = 2822 (struct virtchnl_ether_addr_list *)msg; 2823 struct i40e_pf *pf = vf->pf; 2824 struct i40e_vsi *vsi = NULL; 2825 bool is_quiet = false; 2826 i40e_status ret = 0; 2827 int i; 2828 2829 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2830 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2831 ret = I40E_ERR_PARAM; 2832 goto error_param; 2833 } 2834 2835 vsi = pf->vsi[vf->lan_vsi_idx]; 2836 2837 /* Lock once, because all function inside for loop accesses VSI's 2838 * MAC filter list which needs to be protected using same lock. 2839 */ 2840 spin_lock_bh(&vsi->mac_filter_hash_lock); 2841 2842 ret = i40e_check_vf_permission(vf, al, &is_quiet); 2843 if (ret) { 2844 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2845 goto error_param; 2846 } 2847 2848 /* add new addresses to the list */ 2849 for (i = 0; i < al->num_elements; i++) { 2850 struct i40e_mac_filter *f; 2851 2852 f = i40e_find_mac(vsi, al->list[i].addr); 2853 if (!f) { 2854 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2855 2856 if (!f) { 2857 dev_err(&pf->pdev->dev, 2858 "Unable to add MAC filter %pM for VF %d\n", 2859 al->list[i].addr, vf->vf_id); 2860 ret = I40E_ERR_PARAM; 2861 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2862 goto error_param; 2863 } 2864 if (is_valid_ether_addr(al->list[i].addr) && 2865 is_zero_ether_addr(vf->default_lan_addr.addr)) 2866 ether_addr_copy(vf->default_lan_addr.addr, 2867 al->list[i].addr); 2868 } 2869 } 2870 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2871 2872 /* program the updated filter list */ 2873 ret = i40e_sync_vsi_filters(vsi); 2874 if (ret) 2875 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2876 vf->vf_id, ret); 2877 2878 error_param: 2879 /* send the response to the VF */ 2880 return i40e_vc_send_msg_to_vf_ex(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2881 ret, NULL, 0, is_quiet); 2882 } 2883 2884 /** 2885 * i40e_vc_del_mac_addr_msg 2886 * @vf: pointer to the VF info 2887 * @msg: pointer to the msg buffer 2888 * 2889 * remove guest mac address filter 2890 **/ 2891 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2892 { 2893 struct virtchnl_ether_addr_list *al = 2894 (struct virtchnl_ether_addr_list *)msg; 2895 bool was_unimac_deleted = false; 2896 struct i40e_pf *pf = vf->pf; 2897 struct i40e_vsi *vsi = NULL; 2898 i40e_status ret = 0; 2899 int i; 2900 2901 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2902 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2903 ret = I40E_ERR_PARAM; 2904 goto error_param; 2905 } 2906 2907 for (i = 0; i < al->num_elements; i++) { 2908 if (is_broadcast_ether_addr(al->list[i].addr) || 2909 is_zero_ether_addr(al->list[i].addr)) { 2910 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2911 al->list[i].addr, vf->vf_id); 2912 ret = I40E_ERR_INVALID_MAC_ADDR; 2913 goto error_param; 2914 } 2915 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 2916 was_unimac_deleted = true; 2917 } 2918 vsi = pf->vsi[vf->lan_vsi_idx]; 2919 2920 spin_lock_bh(&vsi->mac_filter_hash_lock); 2921 /* delete addresses from the list */ 2922 for (i = 0; i < al->num_elements; i++) 2923 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2924 ret = I40E_ERR_INVALID_MAC_ADDR; 2925 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2926 goto error_param; 2927 } 2928 2929 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2930 2931 /* program the updated filter list */ 2932 ret = i40e_sync_vsi_filters(vsi); 2933 if (ret) 2934 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2935 vf->vf_id, ret); 2936 2937 if (vf->trusted && was_unimac_deleted) { 2938 struct i40e_mac_filter *f; 2939 struct hlist_node *h; 2940 u8 *macaddr = NULL; 2941 int bkt; 2942 2943 /* set last unicast mac address as default */ 2944 spin_lock_bh(&vsi->mac_filter_hash_lock); 2945 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 2946 if (is_valid_ether_addr(f->macaddr)) 2947 macaddr = f->macaddr; 2948 } 2949 if (macaddr) 2950 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 2951 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2952 } 2953 error_param: 2954 /* send the response to the VF */ 2955 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 2956 } 2957 2958 /** 2959 * i40e_vc_add_vlan_msg 2960 * @vf: pointer to the VF info 2961 * @msg: pointer to the msg buffer 2962 * 2963 * program guest vlan id 2964 **/ 2965 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 2966 { 2967 struct virtchnl_vlan_filter_list *vfl = 2968 (struct virtchnl_vlan_filter_list *)msg; 2969 struct i40e_pf *pf = vf->pf; 2970 struct i40e_vsi *vsi = NULL; 2971 i40e_status aq_ret = 0; 2972 int i; 2973 2974 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2975 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2976 dev_err(&pf->pdev->dev, 2977 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2978 goto error_param; 2979 } 2980 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2981 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 2982 aq_ret = I40E_ERR_PARAM; 2983 goto error_param; 2984 } 2985 2986 for (i = 0; i < vfl->num_elements; i++) { 2987 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2988 aq_ret = I40E_ERR_PARAM; 2989 dev_err(&pf->pdev->dev, 2990 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2991 goto error_param; 2992 } 2993 } 2994 vsi = pf->vsi[vf->lan_vsi_idx]; 2995 if (vsi->info.pvid) { 2996 aq_ret = I40E_ERR_PARAM; 2997 goto error_param; 2998 } 2999 3000 i40e_vlan_stripping_enable(vsi); 3001 for (i = 0; i < vfl->num_elements; i++) { 3002 /* add new VLAN filter */ 3003 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3004 if (!ret) 3005 vf->num_vlan++; 3006 3007 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3008 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3009 true, 3010 vfl->vlan_id[i], 3011 NULL); 3012 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3013 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3014 true, 3015 vfl->vlan_id[i], 3016 NULL); 3017 3018 if (ret) 3019 dev_err(&pf->pdev->dev, 3020 "Unable to add VLAN filter %d for VF %d, error %d\n", 3021 vfl->vlan_id[i], vf->vf_id, ret); 3022 } 3023 3024 error_param: 3025 /* send the response to the VF */ 3026 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3027 } 3028 3029 /** 3030 * i40e_vc_remove_vlan_msg 3031 * @vf: pointer to the VF info 3032 * @msg: pointer to the msg buffer 3033 * 3034 * remove programmed guest vlan id 3035 **/ 3036 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3037 { 3038 struct virtchnl_vlan_filter_list *vfl = 3039 (struct virtchnl_vlan_filter_list *)msg; 3040 struct i40e_pf *pf = vf->pf; 3041 struct i40e_vsi *vsi = NULL; 3042 i40e_status aq_ret = 0; 3043 int i; 3044 3045 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3046 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3047 aq_ret = I40E_ERR_PARAM; 3048 goto error_param; 3049 } 3050 3051 for (i = 0; i < vfl->num_elements; i++) { 3052 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3053 aq_ret = I40E_ERR_PARAM; 3054 goto error_param; 3055 } 3056 } 3057 3058 vsi = pf->vsi[vf->lan_vsi_idx]; 3059 if (vsi->info.pvid) { 3060 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3061 aq_ret = I40E_ERR_PARAM; 3062 goto error_param; 3063 } 3064 3065 for (i = 0; i < vfl->num_elements; i++) { 3066 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3067 vf->num_vlan--; 3068 3069 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3070 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3071 false, 3072 vfl->vlan_id[i], 3073 NULL); 3074 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3075 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3076 false, 3077 vfl->vlan_id[i], 3078 NULL); 3079 } 3080 3081 error_param: 3082 /* send the response to the VF */ 3083 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3084 } 3085 3086 /** 3087 * i40e_vc_iwarp_msg 3088 * @vf: pointer to the VF info 3089 * @msg: pointer to the msg buffer 3090 * @msglen: msg length 3091 * 3092 * called from the VF for the iwarp msgs 3093 **/ 3094 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3095 { 3096 struct i40e_pf *pf = vf->pf; 3097 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3098 i40e_status aq_ret = 0; 3099 3100 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3101 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3102 aq_ret = I40E_ERR_PARAM; 3103 goto error_param; 3104 } 3105 3106 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3107 msg, msglen); 3108 3109 error_param: 3110 /* send the response to the VF */ 3111 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 3112 aq_ret); 3113 } 3114 3115 /** 3116 * i40e_vc_iwarp_qvmap_msg 3117 * @vf: pointer to the VF info 3118 * @msg: pointer to the msg buffer 3119 * @config: config qvmap or release it 3120 * 3121 * called from the VF for the iwarp msgs 3122 **/ 3123 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3124 { 3125 struct virtchnl_iwarp_qvlist_info *qvlist_info = 3126 (struct virtchnl_iwarp_qvlist_info *)msg; 3127 i40e_status aq_ret = 0; 3128 3129 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3130 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3131 aq_ret = I40E_ERR_PARAM; 3132 goto error_param; 3133 } 3134 3135 if (config) { 3136 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 3137 aq_ret = I40E_ERR_PARAM; 3138 } else { 3139 i40e_release_iwarp_qvlist(vf); 3140 } 3141 3142 error_param: 3143 /* send the response to the VF */ 3144 return i40e_vc_send_resp_to_vf(vf, 3145 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 3146 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 3147 aq_ret); 3148 } 3149 3150 /** 3151 * i40e_vc_config_rss_key 3152 * @vf: pointer to the VF info 3153 * @msg: pointer to the msg buffer 3154 * 3155 * Configure the VF's RSS key 3156 **/ 3157 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3158 { 3159 struct virtchnl_rss_key *vrk = 3160 (struct virtchnl_rss_key *)msg; 3161 struct i40e_pf *pf = vf->pf; 3162 struct i40e_vsi *vsi = NULL; 3163 i40e_status aq_ret = 0; 3164 3165 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3166 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3167 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3168 aq_ret = I40E_ERR_PARAM; 3169 goto err; 3170 } 3171 3172 vsi = pf->vsi[vf->lan_vsi_idx]; 3173 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3174 err: 3175 /* send the response to the VF */ 3176 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3177 aq_ret); 3178 } 3179 3180 /** 3181 * i40e_vc_config_rss_lut 3182 * @vf: pointer to the VF info 3183 * @msg: pointer to the msg buffer 3184 * 3185 * Configure the VF's RSS LUT 3186 **/ 3187 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3188 { 3189 struct virtchnl_rss_lut *vrl = 3190 (struct virtchnl_rss_lut *)msg; 3191 struct i40e_pf *pf = vf->pf; 3192 struct i40e_vsi *vsi = NULL; 3193 i40e_status aq_ret = 0; 3194 u16 i; 3195 3196 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3197 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3198 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3199 aq_ret = I40E_ERR_PARAM; 3200 goto err; 3201 } 3202 3203 for (i = 0; i < vrl->lut_entries; i++) 3204 if (vrl->lut[i] >= vf->num_queue_pairs) { 3205 aq_ret = I40E_ERR_PARAM; 3206 goto err; 3207 } 3208 3209 vsi = pf->vsi[vf->lan_vsi_idx]; 3210 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3211 /* send the response to the VF */ 3212 err: 3213 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3214 aq_ret); 3215 } 3216 3217 /** 3218 * i40e_vc_get_rss_hena 3219 * @vf: pointer to the VF info 3220 * @msg: pointer to the msg buffer 3221 * 3222 * Return the RSS HENA bits allowed by the hardware 3223 **/ 3224 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3225 { 3226 struct virtchnl_rss_hena *vrh = NULL; 3227 struct i40e_pf *pf = vf->pf; 3228 i40e_status aq_ret = 0; 3229 int len = 0; 3230 3231 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3232 aq_ret = I40E_ERR_PARAM; 3233 goto err; 3234 } 3235 len = sizeof(struct virtchnl_rss_hena); 3236 3237 vrh = kzalloc(len, GFP_KERNEL); 3238 if (!vrh) { 3239 aq_ret = I40E_ERR_NO_MEMORY; 3240 len = 0; 3241 goto err; 3242 } 3243 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3244 err: 3245 /* send the response back to the VF */ 3246 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3247 aq_ret, (u8 *)vrh, len); 3248 kfree(vrh); 3249 return aq_ret; 3250 } 3251 3252 /** 3253 * i40e_vc_set_rss_hena 3254 * @vf: pointer to the VF info 3255 * @msg: pointer to the msg buffer 3256 * 3257 * Set the RSS HENA bits for the VF 3258 **/ 3259 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3260 { 3261 struct virtchnl_rss_hena *vrh = 3262 (struct virtchnl_rss_hena *)msg; 3263 struct i40e_pf *pf = vf->pf; 3264 struct i40e_hw *hw = &pf->hw; 3265 i40e_status aq_ret = 0; 3266 3267 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3268 aq_ret = I40E_ERR_PARAM; 3269 goto err; 3270 } 3271 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3272 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3273 (u32)(vrh->hena >> 32)); 3274 3275 /* send the response to the VF */ 3276 err: 3277 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3278 } 3279 3280 /** 3281 * i40e_vc_enable_vlan_stripping 3282 * @vf: pointer to the VF info 3283 * @msg: pointer to the msg buffer 3284 * 3285 * Enable vlan header stripping for the VF 3286 **/ 3287 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3288 { 3289 i40e_status aq_ret = 0; 3290 struct i40e_vsi *vsi; 3291 3292 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3293 aq_ret = I40E_ERR_PARAM; 3294 goto err; 3295 } 3296 3297 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3298 i40e_vlan_stripping_enable(vsi); 3299 3300 /* send the response to the VF */ 3301 err: 3302 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3303 aq_ret); 3304 } 3305 3306 /** 3307 * i40e_vc_disable_vlan_stripping 3308 * @vf: pointer to the VF info 3309 * @msg: pointer to the msg buffer 3310 * 3311 * Disable vlan header stripping for the VF 3312 **/ 3313 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3314 { 3315 i40e_status aq_ret = 0; 3316 struct i40e_vsi *vsi; 3317 3318 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3319 aq_ret = I40E_ERR_PARAM; 3320 goto err; 3321 } 3322 3323 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3324 i40e_vlan_stripping_disable(vsi); 3325 3326 /* send the response to the VF */ 3327 err: 3328 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3329 aq_ret); 3330 } 3331 3332 /** 3333 * i40e_validate_cloud_filter 3334 * @vf: pointer to VF structure 3335 * @tc_filter: pointer to filter requested 3336 * 3337 * This function validates cloud filter programmed as TC filter for ADq 3338 **/ 3339 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3340 struct virtchnl_filter *tc_filter) 3341 { 3342 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3343 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3344 struct i40e_pf *pf = vf->pf; 3345 struct i40e_vsi *vsi = NULL; 3346 struct i40e_mac_filter *f; 3347 struct hlist_node *h; 3348 bool found = false; 3349 int bkt; 3350 3351 if (!tc_filter->action) { 3352 dev_info(&pf->pdev->dev, 3353 "VF %d: Currently ADq doesn't support Drop Action\n", 3354 vf->vf_id); 3355 goto err; 3356 } 3357 3358 /* action_meta is TC number here to which the filter is applied */ 3359 if (!tc_filter->action_meta || 3360 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3361 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3362 vf->vf_id, tc_filter->action_meta); 3363 goto err; 3364 } 3365 3366 /* Check filter if it's programmed for advanced mode or basic mode. 3367 * There are two ADq modes (for VF only), 3368 * 1. Basic mode: intended to allow as many filter options as possible 3369 * to be added to a VF in Non-trusted mode. Main goal is 3370 * to add filters to its own MAC and VLAN id. 3371 * 2. Advanced mode: is for allowing filters to be applied other than 3372 * its own MAC or VLAN. This mode requires the VF to be 3373 * Trusted. 3374 */ 3375 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3376 vsi = pf->vsi[vf->lan_vsi_idx]; 3377 f = i40e_find_mac(vsi, data.dst_mac); 3378 3379 if (!f) { 3380 dev_info(&pf->pdev->dev, 3381 "Destination MAC %pM doesn't belong to VF %d\n", 3382 data.dst_mac, vf->vf_id); 3383 goto err; 3384 } 3385 3386 if (mask.vlan_id) { 3387 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3388 hlist) { 3389 if (f->vlan == ntohs(data.vlan_id)) { 3390 found = true; 3391 break; 3392 } 3393 } 3394 if (!found) { 3395 dev_info(&pf->pdev->dev, 3396 "VF %d doesn't have any VLAN id %u\n", 3397 vf->vf_id, ntohs(data.vlan_id)); 3398 goto err; 3399 } 3400 } 3401 } else { 3402 /* Check if VF is trusted */ 3403 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3404 dev_err(&pf->pdev->dev, 3405 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3406 vf->vf_id); 3407 return I40E_ERR_CONFIG; 3408 } 3409 } 3410 3411 if (mask.dst_mac[0] & data.dst_mac[0]) { 3412 if (is_broadcast_ether_addr(data.dst_mac) || 3413 is_zero_ether_addr(data.dst_mac)) { 3414 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3415 vf->vf_id, data.dst_mac); 3416 goto err; 3417 } 3418 } 3419 3420 if (mask.src_mac[0] & data.src_mac[0]) { 3421 if (is_broadcast_ether_addr(data.src_mac) || 3422 is_zero_ether_addr(data.src_mac)) { 3423 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3424 vf->vf_id, data.src_mac); 3425 goto err; 3426 } 3427 } 3428 3429 if (mask.dst_port & data.dst_port) { 3430 if (!data.dst_port) { 3431 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3432 vf->vf_id); 3433 goto err; 3434 } 3435 } 3436 3437 if (mask.src_port & data.src_port) { 3438 if (!data.src_port) { 3439 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3440 vf->vf_id); 3441 goto err; 3442 } 3443 } 3444 3445 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3446 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3447 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3448 vf->vf_id); 3449 goto err; 3450 } 3451 3452 if (mask.vlan_id & data.vlan_id) { 3453 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3454 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3455 vf->vf_id); 3456 goto err; 3457 } 3458 } 3459 3460 return I40E_SUCCESS; 3461 err: 3462 return I40E_ERR_CONFIG; 3463 } 3464 3465 /** 3466 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3467 * @vf: pointer to the VF info 3468 * @seid: seid of the vsi it is searching for 3469 **/ 3470 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3471 { 3472 struct i40e_pf *pf = vf->pf; 3473 struct i40e_vsi *vsi = NULL; 3474 int i; 3475 3476 for (i = 0; i < vf->num_tc ; i++) { 3477 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3478 if (vsi && vsi->seid == seid) 3479 return vsi; 3480 } 3481 return NULL; 3482 } 3483 3484 /** 3485 * i40e_del_all_cloud_filters 3486 * @vf: pointer to the VF info 3487 * 3488 * This function deletes all cloud filters 3489 **/ 3490 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3491 { 3492 struct i40e_cloud_filter *cfilter = NULL; 3493 struct i40e_pf *pf = vf->pf; 3494 struct i40e_vsi *vsi = NULL; 3495 struct hlist_node *node; 3496 int ret; 3497 3498 hlist_for_each_entry_safe(cfilter, node, 3499 &vf->cloud_filter_list, cloud_node) { 3500 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3501 3502 if (!vsi) { 3503 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3504 vf->vf_id, cfilter->seid); 3505 continue; 3506 } 3507 3508 if (cfilter->dst_port) 3509 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3510 false); 3511 else 3512 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3513 if (ret) 3514 dev_err(&pf->pdev->dev, 3515 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3516 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3517 i40e_aq_str(&pf->hw, 3518 pf->hw.aq.asq_last_status)); 3519 3520 hlist_del(&cfilter->cloud_node); 3521 kfree(cfilter); 3522 vf->num_cloud_filters--; 3523 } 3524 } 3525 3526 /** 3527 * i40e_vc_del_cloud_filter 3528 * @vf: pointer to the VF info 3529 * @msg: pointer to the msg buffer 3530 * 3531 * This function deletes a cloud filter programmed as TC filter for ADq 3532 **/ 3533 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3534 { 3535 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3536 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3537 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3538 struct i40e_cloud_filter cfilter, *cf = NULL; 3539 struct i40e_pf *pf = vf->pf; 3540 struct i40e_vsi *vsi = NULL; 3541 struct hlist_node *node; 3542 i40e_status aq_ret = 0; 3543 int i, ret; 3544 3545 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3546 aq_ret = I40E_ERR_PARAM; 3547 goto err; 3548 } 3549 3550 if (!vf->adq_enabled) { 3551 dev_info(&pf->pdev->dev, 3552 "VF %d: ADq not enabled, can't apply cloud filter\n", 3553 vf->vf_id); 3554 aq_ret = I40E_ERR_PARAM; 3555 goto err; 3556 } 3557 3558 if (i40e_validate_cloud_filter(vf, vcf)) { 3559 dev_info(&pf->pdev->dev, 3560 "VF %d: Invalid input, can't apply cloud filter\n", 3561 vf->vf_id); 3562 aq_ret = I40E_ERR_PARAM; 3563 goto err; 3564 } 3565 3566 memset(&cfilter, 0, sizeof(cfilter)); 3567 /* parse destination mac address */ 3568 for (i = 0; i < ETH_ALEN; i++) 3569 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3570 3571 /* parse source mac address */ 3572 for (i = 0; i < ETH_ALEN; i++) 3573 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3574 3575 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3576 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3577 cfilter.src_port = mask.src_port & tcf.src_port; 3578 3579 switch (vcf->flow_type) { 3580 case VIRTCHNL_TCP_V4_FLOW: 3581 cfilter.n_proto = ETH_P_IP; 3582 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3583 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3584 ARRAY_SIZE(tcf.dst_ip)); 3585 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3586 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3587 ARRAY_SIZE(tcf.dst_ip)); 3588 break; 3589 case VIRTCHNL_TCP_V6_FLOW: 3590 cfilter.n_proto = ETH_P_IPV6; 3591 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3592 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3593 sizeof(cfilter.ip.v6.dst_ip6)); 3594 if (mask.src_ip[3] & tcf.src_ip[3]) 3595 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3596 sizeof(cfilter.ip.v6.src_ip6)); 3597 break; 3598 default: 3599 /* TC filter can be configured based on different combinations 3600 * and in this case IP is not a part of filter config 3601 */ 3602 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3603 vf->vf_id); 3604 } 3605 3606 /* get the vsi to which the tc belongs to */ 3607 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3608 cfilter.seid = vsi->seid; 3609 cfilter.flags = vcf->field_flags; 3610 3611 /* Deleting TC filter */ 3612 if (tcf.dst_port) 3613 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3614 else 3615 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3616 if (ret) { 3617 dev_err(&pf->pdev->dev, 3618 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3619 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3620 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3621 goto err; 3622 } 3623 3624 hlist_for_each_entry_safe(cf, node, 3625 &vf->cloud_filter_list, cloud_node) { 3626 if (cf->seid != cfilter.seid) 3627 continue; 3628 if (mask.dst_port) 3629 if (cfilter.dst_port != cf->dst_port) 3630 continue; 3631 if (mask.dst_mac[0]) 3632 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3633 continue; 3634 /* for ipv4 data to be valid, only first byte of mask is set */ 3635 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3636 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3637 ARRAY_SIZE(tcf.dst_ip))) 3638 continue; 3639 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3640 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3641 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3642 sizeof(cfilter.ip.v6.src_ip6))) 3643 continue; 3644 if (mask.vlan_id) 3645 if (cfilter.vlan_id != cf->vlan_id) 3646 continue; 3647 3648 hlist_del(&cf->cloud_node); 3649 kfree(cf); 3650 vf->num_cloud_filters--; 3651 } 3652 3653 err: 3654 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3655 aq_ret); 3656 } 3657 3658 /** 3659 * i40e_vc_add_cloud_filter 3660 * @vf: pointer to the VF info 3661 * @msg: pointer to the msg buffer 3662 * 3663 * This function adds a cloud filter programmed as TC filter for ADq 3664 **/ 3665 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3666 { 3667 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3668 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3669 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3670 struct i40e_cloud_filter *cfilter = NULL; 3671 struct i40e_pf *pf = vf->pf; 3672 struct i40e_vsi *vsi = NULL; 3673 i40e_status aq_ret = 0; 3674 int i, ret; 3675 3676 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3677 aq_ret = I40E_ERR_PARAM; 3678 goto err_out; 3679 } 3680 3681 if (!vf->adq_enabled) { 3682 dev_info(&pf->pdev->dev, 3683 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3684 vf->vf_id); 3685 aq_ret = I40E_ERR_PARAM; 3686 goto err_out; 3687 } 3688 3689 if (i40e_validate_cloud_filter(vf, vcf)) { 3690 dev_info(&pf->pdev->dev, 3691 "VF %d: Invalid input/s, can't apply cloud filter\n", 3692 vf->vf_id); 3693 aq_ret = I40E_ERR_PARAM; 3694 goto err_out; 3695 } 3696 3697 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3698 if (!cfilter) 3699 return -ENOMEM; 3700 3701 /* parse destination mac address */ 3702 for (i = 0; i < ETH_ALEN; i++) 3703 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3704 3705 /* parse source mac address */ 3706 for (i = 0; i < ETH_ALEN; i++) 3707 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3708 3709 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3710 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3711 cfilter->src_port = mask.src_port & tcf.src_port; 3712 3713 switch (vcf->flow_type) { 3714 case VIRTCHNL_TCP_V4_FLOW: 3715 cfilter->n_proto = ETH_P_IP; 3716 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3717 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3718 ARRAY_SIZE(tcf.dst_ip)); 3719 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3720 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3721 ARRAY_SIZE(tcf.dst_ip)); 3722 break; 3723 case VIRTCHNL_TCP_V6_FLOW: 3724 cfilter->n_proto = ETH_P_IPV6; 3725 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3726 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3727 sizeof(cfilter->ip.v6.dst_ip6)); 3728 if (mask.src_ip[3] & tcf.src_ip[3]) 3729 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3730 sizeof(cfilter->ip.v6.src_ip6)); 3731 break; 3732 default: 3733 /* TC filter can be configured based on different combinations 3734 * and in this case IP is not a part of filter config 3735 */ 3736 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3737 vf->vf_id); 3738 } 3739 3740 /* get the VSI to which the TC belongs to */ 3741 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3742 cfilter->seid = vsi->seid; 3743 cfilter->flags = vcf->field_flags; 3744 3745 /* Adding cloud filter programmed as TC filter */ 3746 if (tcf.dst_port) 3747 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3748 else 3749 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3750 if (ret) { 3751 dev_err(&pf->pdev->dev, 3752 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3753 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3754 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3755 goto err_free; 3756 } 3757 3758 INIT_HLIST_NODE(&cfilter->cloud_node); 3759 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3760 /* release the pointer passing it to the collection */ 3761 cfilter = NULL; 3762 vf->num_cloud_filters++; 3763 err_free: 3764 kfree(cfilter); 3765 err_out: 3766 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3767 aq_ret); 3768 } 3769 3770 /** 3771 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3772 * @vf: pointer to the VF info 3773 * @msg: pointer to the msg buffer 3774 **/ 3775 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3776 { 3777 struct virtchnl_tc_info *tci = 3778 (struct virtchnl_tc_info *)msg; 3779 struct i40e_pf *pf = vf->pf; 3780 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3781 int i, adq_request_qps = 0; 3782 i40e_status aq_ret = 0; 3783 u64 speed = 0; 3784 3785 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3786 aq_ret = I40E_ERR_PARAM; 3787 goto err; 3788 } 3789 3790 /* ADq cannot be applied if spoof check is ON */ 3791 if (vf->spoofchk) { 3792 dev_err(&pf->pdev->dev, 3793 "Spoof check is ON, turn it OFF to enable ADq\n"); 3794 aq_ret = I40E_ERR_PARAM; 3795 goto err; 3796 } 3797 3798 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3799 dev_err(&pf->pdev->dev, 3800 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3801 vf->vf_id); 3802 aq_ret = I40E_ERR_PARAM; 3803 goto err; 3804 } 3805 3806 /* max number of traffic classes for VF currently capped at 4 */ 3807 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3808 dev_err(&pf->pdev->dev, 3809 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3810 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3811 aq_ret = I40E_ERR_PARAM; 3812 goto err; 3813 } 3814 3815 /* validate queues for each TC */ 3816 for (i = 0; i < tci->num_tc; i++) 3817 if (!tci->list[i].count || 3818 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3819 dev_err(&pf->pdev->dev, 3820 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3821 vf->vf_id, i, tci->list[i].count, 3822 I40E_DEFAULT_QUEUES_PER_VF); 3823 aq_ret = I40E_ERR_PARAM; 3824 goto err; 3825 } 3826 3827 /* need Max VF queues but already have default number of queues */ 3828 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3829 3830 if (pf->queues_left < adq_request_qps) { 3831 dev_err(&pf->pdev->dev, 3832 "No queues left to allocate to VF %d\n", 3833 vf->vf_id); 3834 aq_ret = I40E_ERR_PARAM; 3835 goto err; 3836 } else { 3837 /* we need to allocate max VF queues to enable ADq so as to 3838 * make sure ADq enabled VF always gets back queues when it 3839 * goes through a reset. 3840 */ 3841 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3842 } 3843 3844 /* get link speed in MB to validate rate limit */ 3845 speed = i40e_vc_link_speed2mbps(ls->link_speed); 3846 if (speed == SPEED_UNKNOWN) { 3847 dev_err(&pf->pdev->dev, 3848 "Cannot detect link speed\n"); 3849 aq_ret = I40E_ERR_PARAM; 3850 goto err; 3851 } 3852 3853 /* parse data from the queue channel info */ 3854 vf->num_tc = tci->num_tc; 3855 for (i = 0; i < vf->num_tc; i++) { 3856 if (tci->list[i].max_tx_rate) { 3857 if (tci->list[i].max_tx_rate > speed) { 3858 dev_err(&pf->pdev->dev, 3859 "Invalid max tx rate %llu specified for VF %d.", 3860 tci->list[i].max_tx_rate, 3861 vf->vf_id); 3862 aq_ret = I40E_ERR_PARAM; 3863 goto err; 3864 } else { 3865 vf->ch[i].max_tx_rate = 3866 tci->list[i].max_tx_rate; 3867 } 3868 } 3869 vf->ch[i].num_qps = tci->list[i].count; 3870 } 3871 3872 /* set this flag only after making sure all inputs are sane */ 3873 vf->adq_enabled = true; 3874 3875 /* reset the VF in order to allocate resources */ 3876 i40e_vc_reset_vf(vf, true); 3877 3878 return I40E_SUCCESS; 3879 3880 /* send the response to the VF */ 3881 err: 3882 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3883 aq_ret); 3884 } 3885 3886 /** 3887 * i40e_vc_del_qch_msg 3888 * @vf: pointer to the VF info 3889 * @msg: pointer to the msg buffer 3890 **/ 3891 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3892 { 3893 struct i40e_pf *pf = vf->pf; 3894 i40e_status aq_ret = 0; 3895 3896 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3897 aq_ret = I40E_ERR_PARAM; 3898 goto err; 3899 } 3900 3901 if (vf->adq_enabled) { 3902 i40e_del_all_cloud_filters(vf); 3903 i40e_del_qch(vf); 3904 vf->adq_enabled = false; 3905 vf->num_tc = 0; 3906 dev_info(&pf->pdev->dev, 3907 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 3908 vf->vf_id); 3909 } else { 3910 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 3911 vf->vf_id); 3912 aq_ret = I40E_ERR_PARAM; 3913 } 3914 3915 /* reset the VF in order to allocate resources */ 3916 i40e_vc_reset_vf(vf, true); 3917 3918 return I40E_SUCCESS; 3919 3920 err: 3921 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 3922 aq_ret); 3923 } 3924 3925 /** 3926 * i40e_vc_process_vf_msg 3927 * @pf: pointer to the PF structure 3928 * @vf_id: source VF id 3929 * @v_opcode: operation code 3930 * @v_retval: unused return value code 3931 * @msg: pointer to the msg buffer 3932 * @msglen: msg length 3933 * 3934 * called from the common aeq/arq handler to 3935 * process request from VF 3936 **/ 3937 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 3938 u32 __always_unused v_retval, u8 *msg, u16 msglen) 3939 { 3940 struct i40e_hw *hw = &pf->hw; 3941 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 3942 struct i40e_vf *vf; 3943 int ret; 3944 3945 pf->vf_aq_requests++; 3946 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 3947 return -EINVAL; 3948 vf = &(pf->vf[local_vf_id]); 3949 3950 /* Check if VF is disabled. */ 3951 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 3952 return I40E_ERR_PARAM; 3953 3954 /* perform basic checks on the msg */ 3955 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 3956 3957 if (ret) { 3958 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 3959 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 3960 local_vf_id, v_opcode, msglen); 3961 switch (ret) { 3962 case VIRTCHNL_STATUS_ERR_PARAM: 3963 return -EPERM; 3964 default: 3965 return -EINVAL; 3966 } 3967 } 3968 3969 switch (v_opcode) { 3970 case VIRTCHNL_OP_VERSION: 3971 ret = i40e_vc_get_version_msg(vf, msg); 3972 break; 3973 case VIRTCHNL_OP_GET_VF_RESOURCES: 3974 ret = i40e_vc_get_vf_resources_msg(vf, msg); 3975 i40e_vc_notify_vf_link_state(vf); 3976 break; 3977 case VIRTCHNL_OP_RESET_VF: 3978 i40e_vc_reset_vf(vf, false); 3979 ret = 0; 3980 break; 3981 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 3982 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 3983 break; 3984 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 3985 ret = i40e_vc_config_queues_msg(vf, msg); 3986 break; 3987 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 3988 ret = i40e_vc_config_irq_map_msg(vf, msg); 3989 break; 3990 case VIRTCHNL_OP_ENABLE_QUEUES: 3991 ret = i40e_vc_enable_queues_msg(vf, msg); 3992 i40e_vc_notify_vf_link_state(vf); 3993 break; 3994 case VIRTCHNL_OP_DISABLE_QUEUES: 3995 ret = i40e_vc_disable_queues_msg(vf, msg); 3996 break; 3997 case VIRTCHNL_OP_ADD_ETH_ADDR: 3998 ret = i40e_vc_add_mac_addr_msg(vf, msg); 3999 break; 4000 case VIRTCHNL_OP_DEL_ETH_ADDR: 4001 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4002 break; 4003 case VIRTCHNL_OP_ADD_VLAN: 4004 ret = i40e_vc_add_vlan_msg(vf, msg); 4005 break; 4006 case VIRTCHNL_OP_DEL_VLAN: 4007 ret = i40e_vc_remove_vlan_msg(vf, msg); 4008 break; 4009 case VIRTCHNL_OP_GET_STATS: 4010 ret = i40e_vc_get_stats_msg(vf, msg); 4011 break; 4012 case VIRTCHNL_OP_IWARP: 4013 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 4014 break; 4015 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 4016 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 4017 break; 4018 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 4019 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 4020 break; 4021 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4022 ret = i40e_vc_config_rss_key(vf, msg); 4023 break; 4024 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4025 ret = i40e_vc_config_rss_lut(vf, msg); 4026 break; 4027 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4028 ret = i40e_vc_get_rss_hena(vf, msg); 4029 break; 4030 case VIRTCHNL_OP_SET_RSS_HENA: 4031 ret = i40e_vc_set_rss_hena(vf, msg); 4032 break; 4033 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4034 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4035 break; 4036 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4037 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4038 break; 4039 case VIRTCHNL_OP_REQUEST_QUEUES: 4040 ret = i40e_vc_request_queues_msg(vf, msg); 4041 break; 4042 case VIRTCHNL_OP_ENABLE_CHANNELS: 4043 ret = i40e_vc_add_qch_msg(vf, msg); 4044 break; 4045 case VIRTCHNL_OP_DISABLE_CHANNELS: 4046 ret = i40e_vc_del_qch_msg(vf, msg); 4047 break; 4048 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4049 ret = i40e_vc_add_cloud_filter(vf, msg); 4050 break; 4051 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4052 ret = i40e_vc_del_cloud_filter(vf, msg); 4053 break; 4054 case VIRTCHNL_OP_UNKNOWN: 4055 default: 4056 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4057 v_opcode, local_vf_id); 4058 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4059 I40E_ERR_NOT_IMPLEMENTED); 4060 break; 4061 } 4062 4063 return ret; 4064 } 4065 4066 /** 4067 * i40e_vc_process_vflr_event 4068 * @pf: pointer to the PF structure 4069 * 4070 * called from the vlfr irq handler to 4071 * free up VF resources and state variables 4072 **/ 4073 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4074 { 4075 struct i40e_hw *hw = &pf->hw; 4076 u32 reg, reg_idx, bit_idx; 4077 struct i40e_vf *vf; 4078 int vf_id; 4079 4080 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4081 return 0; 4082 4083 /* Re-enable the VFLR interrupt cause here, before looking for which 4084 * VF got reset. Otherwise, if another VF gets a reset while the 4085 * first one is being processed, that interrupt will be lost, and 4086 * that VF will be stuck in reset forever. 4087 */ 4088 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4089 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4090 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4091 i40e_flush(hw); 4092 4093 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4094 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4095 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4096 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4097 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4098 vf = &pf->vf[vf_id]; 4099 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4100 if (reg & BIT(bit_idx)) 4101 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4102 i40e_reset_vf(vf, true); 4103 } 4104 4105 return 0; 4106 } 4107 4108 /** 4109 * i40e_validate_vf 4110 * @pf: the physical function 4111 * @vf_id: VF identifier 4112 * 4113 * Check that the VF is enabled and the VSI exists. 4114 * 4115 * Returns 0 on success, negative on failure 4116 **/ 4117 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4118 { 4119 struct i40e_vsi *vsi; 4120 struct i40e_vf *vf; 4121 int ret = 0; 4122 4123 if (vf_id >= pf->num_alloc_vfs) { 4124 dev_err(&pf->pdev->dev, 4125 "Invalid VF Identifier %d\n", vf_id); 4126 ret = -EINVAL; 4127 goto err_out; 4128 } 4129 vf = &pf->vf[vf_id]; 4130 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4131 if (!vsi) 4132 ret = -EINVAL; 4133 err_out: 4134 return ret; 4135 } 4136 4137 /** 4138 * i40e_ndo_set_vf_mac 4139 * @netdev: network interface device structure 4140 * @vf_id: VF identifier 4141 * @mac: mac address 4142 * 4143 * program VF mac address 4144 **/ 4145 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4146 { 4147 struct i40e_netdev_priv *np = netdev_priv(netdev); 4148 struct i40e_vsi *vsi = np->vsi; 4149 struct i40e_pf *pf = vsi->back; 4150 struct i40e_mac_filter *f; 4151 struct i40e_vf *vf; 4152 int ret = 0; 4153 struct hlist_node *h; 4154 int bkt; 4155 u8 i; 4156 4157 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4158 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4159 return -EAGAIN; 4160 } 4161 4162 /* validate the request */ 4163 ret = i40e_validate_vf(pf, vf_id); 4164 if (ret) 4165 goto error_param; 4166 4167 vf = &pf->vf[vf_id]; 4168 4169 /* When the VF is resetting wait until it is done. 4170 * It can take up to 200 milliseconds, 4171 * but wait for up to 300 milliseconds to be safe. 4172 * Acquire the VSI pointer only after the VF has been 4173 * properly initialized. 4174 */ 4175 for (i = 0; i < 15; i++) { 4176 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4177 break; 4178 msleep(20); 4179 } 4180 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4181 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4182 vf_id); 4183 ret = -EAGAIN; 4184 goto error_param; 4185 } 4186 vsi = pf->vsi[vf->lan_vsi_idx]; 4187 4188 if (is_multicast_ether_addr(mac)) { 4189 dev_err(&pf->pdev->dev, 4190 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4191 ret = -EINVAL; 4192 goto error_param; 4193 } 4194 4195 /* Lock once because below invoked function add/del_filter requires 4196 * mac_filter_hash_lock to be held 4197 */ 4198 spin_lock_bh(&vsi->mac_filter_hash_lock); 4199 4200 /* delete the temporary mac address */ 4201 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4202 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4203 4204 /* Delete all the filters for this VSI - we're going to kill it 4205 * anyway. 4206 */ 4207 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4208 __i40e_del_filter(vsi, f); 4209 4210 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4211 4212 /* program mac filter */ 4213 if (i40e_sync_vsi_filters(vsi)) { 4214 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4215 ret = -EIO; 4216 goto error_param; 4217 } 4218 ether_addr_copy(vf->default_lan_addr.addr, mac); 4219 4220 if (is_zero_ether_addr(mac)) { 4221 vf->pf_set_mac = false; 4222 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4223 } else { 4224 vf->pf_set_mac = true; 4225 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4226 mac, vf_id); 4227 } 4228 4229 /* Force the VF interface down so it has to bring up with new MAC 4230 * address 4231 */ 4232 i40e_vc_reset_vf(vf, true); 4233 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4234 4235 error_param: 4236 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4237 return ret; 4238 } 4239 4240 /** 4241 * i40e_ndo_set_vf_port_vlan 4242 * @netdev: network interface device structure 4243 * @vf_id: VF identifier 4244 * @vlan_id: mac address 4245 * @qos: priority setting 4246 * @vlan_proto: vlan protocol 4247 * 4248 * program VF vlan id and/or qos 4249 **/ 4250 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4251 u16 vlan_id, u8 qos, __be16 vlan_proto) 4252 { 4253 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4254 struct i40e_netdev_priv *np = netdev_priv(netdev); 4255 bool allmulti = false, alluni = false; 4256 struct i40e_pf *pf = np->vsi->back; 4257 struct i40e_vsi *vsi; 4258 struct i40e_vf *vf; 4259 int ret = 0; 4260 4261 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4262 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4263 return -EAGAIN; 4264 } 4265 4266 /* validate the request */ 4267 ret = i40e_validate_vf(pf, vf_id); 4268 if (ret) 4269 goto error_pvid; 4270 4271 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4272 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4273 ret = -EINVAL; 4274 goto error_pvid; 4275 } 4276 4277 if (vlan_proto != htons(ETH_P_8021Q)) { 4278 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4279 ret = -EPROTONOSUPPORT; 4280 goto error_pvid; 4281 } 4282 4283 vf = &pf->vf[vf_id]; 4284 vsi = pf->vsi[vf->lan_vsi_idx]; 4285 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4286 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4287 vf_id); 4288 ret = -EAGAIN; 4289 goto error_pvid; 4290 } 4291 4292 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4293 /* duplicate request, so just return success */ 4294 goto error_pvid; 4295 4296 i40e_vc_reset_vf(vf, true); 4297 /* During reset the VF got a new VSI, so refresh a pointer. */ 4298 vsi = pf->vsi[vf->lan_vsi_idx]; 4299 /* Locked once because multiple functions below iterate list */ 4300 spin_lock_bh(&vsi->mac_filter_hash_lock); 4301 4302 /* Check for condition where there was already a port VLAN ID 4303 * filter set and now it is being deleted by setting it to zero. 4304 * Additionally check for the condition where there was a port 4305 * VLAN but now there is a new and different port VLAN being set. 4306 * Before deleting all the old VLAN filters we must add new ones 4307 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4308 * MAC addresses deleted. 4309 */ 4310 if ((!(vlan_id || qos) || 4311 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4312 vsi->info.pvid) { 4313 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4314 if (ret) { 4315 dev_info(&vsi->back->pdev->dev, 4316 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4317 vsi->back->hw.aq.asq_last_status); 4318 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4319 goto error_pvid; 4320 } 4321 } 4322 4323 if (vsi->info.pvid) { 4324 /* remove all filters on the old VLAN */ 4325 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4326 VLAN_VID_MASK)); 4327 } 4328 4329 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4330 4331 /* disable promisc modes in case they were enabled */ 4332 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4333 allmulti, alluni); 4334 if (ret) { 4335 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4336 goto error_pvid; 4337 } 4338 4339 if (vlan_id || qos) 4340 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4341 else 4342 i40e_vsi_remove_pvid(vsi); 4343 spin_lock_bh(&vsi->mac_filter_hash_lock); 4344 4345 if (vlan_id) { 4346 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4347 vlan_id, qos, vf_id); 4348 4349 /* add new VLAN filter for each MAC */ 4350 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4351 if (ret) { 4352 dev_info(&vsi->back->pdev->dev, 4353 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4354 vsi->back->hw.aq.asq_last_status); 4355 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4356 goto error_pvid; 4357 } 4358 4359 /* remove the previously added non-VLAN MAC filters */ 4360 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4361 } 4362 4363 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4364 4365 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4366 alluni = true; 4367 4368 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4369 allmulti = true; 4370 4371 /* Schedule the worker thread to take care of applying changes */ 4372 i40e_service_event_schedule(vsi->back); 4373 4374 if (ret) { 4375 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4376 goto error_pvid; 4377 } 4378 4379 /* The Port VLAN needs to be saved across resets the same as the 4380 * default LAN MAC address. 4381 */ 4382 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4383 4384 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4385 if (ret) { 4386 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4387 goto error_pvid; 4388 } 4389 4390 ret = 0; 4391 4392 error_pvid: 4393 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4394 return ret; 4395 } 4396 4397 /** 4398 * i40e_ndo_set_vf_bw 4399 * @netdev: network interface device structure 4400 * @vf_id: VF identifier 4401 * @min_tx_rate: Minimum Tx rate 4402 * @max_tx_rate: Maximum Tx rate 4403 * 4404 * configure VF Tx rate 4405 **/ 4406 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4407 int max_tx_rate) 4408 { 4409 struct i40e_netdev_priv *np = netdev_priv(netdev); 4410 struct i40e_pf *pf = np->vsi->back; 4411 struct i40e_vsi *vsi; 4412 struct i40e_vf *vf; 4413 int ret = 0; 4414 4415 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4416 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4417 return -EAGAIN; 4418 } 4419 4420 /* validate the request */ 4421 ret = i40e_validate_vf(pf, vf_id); 4422 if (ret) 4423 goto error; 4424 4425 if (min_tx_rate) { 4426 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4427 min_tx_rate, vf_id); 4428 ret = -EINVAL; 4429 goto error; 4430 } 4431 4432 vf = &pf->vf[vf_id]; 4433 vsi = pf->vsi[vf->lan_vsi_idx]; 4434 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4435 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4436 vf_id); 4437 ret = -EAGAIN; 4438 goto error; 4439 } 4440 4441 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4442 if (ret) 4443 goto error; 4444 4445 vf->tx_rate = max_tx_rate; 4446 error: 4447 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4448 return ret; 4449 } 4450 4451 /** 4452 * i40e_ndo_get_vf_config 4453 * @netdev: network interface device structure 4454 * @vf_id: VF identifier 4455 * @ivi: VF configuration structure 4456 * 4457 * return VF configuration 4458 **/ 4459 int i40e_ndo_get_vf_config(struct net_device *netdev, 4460 int vf_id, struct ifla_vf_info *ivi) 4461 { 4462 struct i40e_netdev_priv *np = netdev_priv(netdev); 4463 struct i40e_vsi *vsi = np->vsi; 4464 struct i40e_pf *pf = vsi->back; 4465 struct i40e_vf *vf; 4466 int ret = 0; 4467 4468 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4469 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4470 return -EAGAIN; 4471 } 4472 4473 /* validate the request */ 4474 ret = i40e_validate_vf(pf, vf_id); 4475 if (ret) 4476 goto error_param; 4477 4478 vf = &pf->vf[vf_id]; 4479 /* first vsi is always the LAN vsi */ 4480 vsi = pf->vsi[vf->lan_vsi_idx]; 4481 if (!vsi) { 4482 ret = -ENOENT; 4483 goto error_param; 4484 } 4485 4486 ivi->vf = vf_id; 4487 4488 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4489 4490 ivi->max_tx_rate = vf->tx_rate; 4491 ivi->min_tx_rate = 0; 4492 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4493 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4494 I40E_VLAN_PRIORITY_SHIFT; 4495 if (vf->link_forced == false) 4496 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4497 else if (vf->link_up == true) 4498 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4499 else 4500 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4501 ivi->spoofchk = vf->spoofchk; 4502 ivi->trusted = vf->trusted; 4503 ret = 0; 4504 4505 error_param: 4506 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4507 return ret; 4508 } 4509 4510 /** 4511 * i40e_ndo_set_vf_link_state 4512 * @netdev: network interface device structure 4513 * @vf_id: VF identifier 4514 * @link: required link state 4515 * 4516 * Set the link state of a specified VF, regardless of physical link state 4517 **/ 4518 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4519 { 4520 struct i40e_netdev_priv *np = netdev_priv(netdev); 4521 struct i40e_pf *pf = np->vsi->back; 4522 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4523 struct virtchnl_pf_event pfe; 4524 struct i40e_hw *hw = &pf->hw; 4525 struct i40e_vf *vf; 4526 int abs_vf_id; 4527 int ret = 0; 4528 4529 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4530 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4531 return -EAGAIN; 4532 } 4533 4534 /* validate the request */ 4535 if (vf_id >= pf->num_alloc_vfs) { 4536 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4537 ret = -EINVAL; 4538 goto error_out; 4539 } 4540 4541 vf = &pf->vf[vf_id]; 4542 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4543 4544 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4545 pfe.severity = PF_EVENT_SEVERITY_INFO; 4546 4547 switch (link) { 4548 case IFLA_VF_LINK_STATE_AUTO: 4549 vf->link_forced = false; 4550 i40e_set_vf_link_state(vf, &pfe, ls); 4551 break; 4552 case IFLA_VF_LINK_STATE_ENABLE: 4553 vf->link_forced = true; 4554 vf->link_up = true; 4555 i40e_set_vf_link_state(vf, &pfe, ls); 4556 break; 4557 case IFLA_VF_LINK_STATE_DISABLE: 4558 vf->link_forced = true; 4559 vf->link_up = false; 4560 i40e_set_vf_link_state(vf, &pfe, ls); 4561 break; 4562 default: 4563 ret = -EINVAL; 4564 goto error_out; 4565 } 4566 /* Notify the VF of its new link state */ 4567 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4568 0, (u8 *)&pfe, sizeof(pfe), NULL); 4569 4570 error_out: 4571 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4572 return ret; 4573 } 4574 4575 /** 4576 * i40e_ndo_set_vf_spoofchk 4577 * @netdev: network interface device structure 4578 * @vf_id: VF identifier 4579 * @enable: flag to enable or disable feature 4580 * 4581 * Enable or disable VF spoof checking 4582 **/ 4583 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4584 { 4585 struct i40e_netdev_priv *np = netdev_priv(netdev); 4586 struct i40e_vsi *vsi = np->vsi; 4587 struct i40e_pf *pf = vsi->back; 4588 struct i40e_vsi_context ctxt; 4589 struct i40e_hw *hw = &pf->hw; 4590 struct i40e_vf *vf; 4591 int ret = 0; 4592 4593 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4594 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4595 return -EAGAIN; 4596 } 4597 4598 /* validate the request */ 4599 if (vf_id >= pf->num_alloc_vfs) { 4600 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4601 ret = -EINVAL; 4602 goto out; 4603 } 4604 4605 vf = &(pf->vf[vf_id]); 4606 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4607 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4608 vf_id); 4609 ret = -EAGAIN; 4610 goto out; 4611 } 4612 4613 if (enable == vf->spoofchk) 4614 goto out; 4615 4616 vf->spoofchk = enable; 4617 memset(&ctxt, 0, sizeof(ctxt)); 4618 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4619 ctxt.pf_num = pf->hw.pf_id; 4620 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4621 if (enable) 4622 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4623 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4624 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4625 if (ret) { 4626 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4627 ret); 4628 ret = -EIO; 4629 } 4630 out: 4631 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4632 return ret; 4633 } 4634 4635 /** 4636 * i40e_ndo_set_vf_trust 4637 * @netdev: network interface device structure of the pf 4638 * @vf_id: VF identifier 4639 * @setting: trust setting 4640 * 4641 * Enable or disable VF trust setting 4642 **/ 4643 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4644 { 4645 struct i40e_netdev_priv *np = netdev_priv(netdev); 4646 struct i40e_pf *pf = np->vsi->back; 4647 struct i40e_vf *vf; 4648 int ret = 0; 4649 4650 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4651 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4652 return -EAGAIN; 4653 } 4654 4655 /* validate the request */ 4656 if (vf_id >= pf->num_alloc_vfs) { 4657 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4658 ret = -EINVAL; 4659 goto out; 4660 } 4661 4662 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4663 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4664 ret = -EINVAL; 4665 goto out; 4666 } 4667 4668 vf = &pf->vf[vf_id]; 4669 4670 if (setting == vf->trusted) 4671 goto out; 4672 4673 vf->trusted = setting; 4674 i40e_vc_reset_vf(vf, true); 4675 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4676 vf_id, setting ? "" : "un"); 4677 4678 if (vf->adq_enabled) { 4679 if (!vf->trusted) { 4680 dev_info(&pf->pdev->dev, 4681 "VF %u no longer Trusted, deleting all cloud filters\n", 4682 vf_id); 4683 i40e_del_all_cloud_filters(vf); 4684 } 4685 } 4686 4687 out: 4688 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4689 return ret; 4690 } 4691 4692 /** 4693 * i40e_get_vf_stats - populate some stats for the VF 4694 * @netdev: the netdev of the PF 4695 * @vf_id: the host OS identifier (0-127) 4696 * @vf_stats: pointer to the OS memory to be initialized 4697 */ 4698 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4699 struct ifla_vf_stats *vf_stats) 4700 { 4701 struct i40e_netdev_priv *np = netdev_priv(netdev); 4702 struct i40e_pf *pf = np->vsi->back; 4703 struct i40e_eth_stats *stats; 4704 struct i40e_vsi *vsi; 4705 struct i40e_vf *vf; 4706 4707 /* validate the request */ 4708 if (i40e_validate_vf(pf, vf_id)) 4709 return -EINVAL; 4710 4711 vf = &pf->vf[vf_id]; 4712 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4713 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4714 return -EBUSY; 4715 } 4716 4717 vsi = pf->vsi[vf->lan_vsi_idx]; 4718 if (!vsi) 4719 return -EINVAL; 4720 4721 i40e_update_eth_stats(vsi); 4722 stats = &vsi->eth_stats; 4723 4724 memset(vf_stats, 0, sizeof(*vf_stats)); 4725 4726 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4727 stats->rx_multicast; 4728 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4729 stats->tx_multicast; 4730 vf_stats->rx_bytes = stats->rx_bytes; 4731 vf_stats->tx_bytes = stats->tx_bytes; 4732 vf_stats->broadcast = stats->rx_broadcast; 4733 vf_stats->multicast = stats->rx_multicast; 4734 vf_stats->rx_dropped = stats->rx_discards; 4735 vf_stats->tx_dropped = stats->tx_discards; 4736 4737 return 0; 4738 } 4739