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_sync_vfr_reset 1381 * @hw: pointer to hw struct 1382 * @vf_id: VF identifier 1383 * 1384 * Before trigger hardware reset, we need to know if no other process has 1385 * reserved the hardware for any reset operations. This check is done by 1386 * examining the status of the RSTAT1 register used to signal the reset. 1387 **/ 1388 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1389 { 1390 u32 reg; 1391 int i; 1392 1393 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1394 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1395 I40E_VFINT_ICR0_ADMINQ_MASK; 1396 if (reg) 1397 return 0; 1398 1399 usleep_range(100, 200); 1400 } 1401 1402 return -EAGAIN; 1403 } 1404 1405 /** 1406 * i40e_trigger_vf_reset 1407 * @vf: pointer to the VF structure 1408 * @flr: VFLR was issued or not 1409 * 1410 * Trigger hardware to start a reset for a particular VF. Expects the caller 1411 * to wait the proper amount of time to allow hardware to reset the VF before 1412 * it cleans up and restores VF functionality. 1413 **/ 1414 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1415 { 1416 struct i40e_pf *pf = vf->pf; 1417 struct i40e_hw *hw = &pf->hw; 1418 u32 reg, reg_idx, bit_idx; 1419 bool vf_active; 1420 u32 radq; 1421 1422 /* warn the VF */ 1423 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1424 1425 /* Disable VF's configuration API during reset. The flag is re-enabled 1426 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1427 * It's normally disabled in i40e_free_vf_res(), but it's safer 1428 * to do it earlier to give some time to finish to any VF config 1429 * functions that may still be running at this point. 1430 */ 1431 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1432 1433 /* In the case of a VFLR, the HW has already reset the VF and we 1434 * just need to clean up, so don't hit the VFRTRIG register. 1435 */ 1436 if (!flr) { 1437 /* Sync VFR reset before trigger next one */ 1438 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1439 I40E_VFINT_ICR0_ADMINQ_MASK; 1440 if (vf_active && !radq) 1441 /* waiting for finish reset by virtual driver */ 1442 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1443 dev_info(&pf->pdev->dev, 1444 "Reset VF %d never finished\n", 1445 vf->vf_id); 1446 1447 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1448 * in progress state in rstat1 register. 1449 */ 1450 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1451 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1452 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1453 i40e_flush(hw); 1454 } 1455 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1456 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1457 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1458 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1459 i40e_flush(hw); 1460 1461 if (i40e_quiesce_vf_pci(vf)) 1462 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1463 vf->vf_id); 1464 } 1465 1466 /** 1467 * i40e_cleanup_reset_vf 1468 * @vf: pointer to the VF structure 1469 * 1470 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1471 * have verified whether the reset is finished properly, and ensure the 1472 * minimum amount of wait time has passed. 1473 **/ 1474 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1475 { 1476 struct i40e_pf *pf = vf->pf; 1477 struct i40e_hw *hw = &pf->hw; 1478 u32 reg; 1479 1480 /* disable promisc modes in case they were enabled */ 1481 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1482 1483 /* free VF resources to begin resetting the VSI state */ 1484 i40e_free_vf_res(vf); 1485 1486 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1487 * By doing this we allow HW to access VF memory at any point. If we 1488 * did it any sooner, HW could access memory while it was being freed 1489 * in i40e_free_vf_res(), causing an IOMMU fault. 1490 * 1491 * On the other hand, this needs to be done ASAP, because the VF driver 1492 * is waiting for this to happen and may report a timeout. It's 1493 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1494 * it. 1495 */ 1496 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1497 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1498 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1499 1500 /* reallocate VF resources to finish resetting the VSI state */ 1501 if (!i40e_alloc_vf_res(vf)) { 1502 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1503 i40e_enable_vf_mappings(vf); 1504 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1505 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1506 /* Do not notify the client during VF init */ 1507 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1508 &vf->vf_states)) 1509 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1510 vf->num_vlan = 0; 1511 } 1512 1513 /* Tell the VF driver the reset is done. This needs to be done only 1514 * after VF has been fully initialized, because the VF driver may 1515 * request resources immediately after setting this flag. 1516 */ 1517 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1518 } 1519 1520 /** 1521 * i40e_reset_vf 1522 * @vf: pointer to the VF structure 1523 * @flr: VFLR was issued or not 1524 * 1525 * Returns true if the VF is in reset, resets successfully, or resets 1526 * are disabled and false otherwise. 1527 **/ 1528 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1529 { 1530 struct i40e_pf *pf = vf->pf; 1531 struct i40e_hw *hw = &pf->hw; 1532 bool rsd = false; 1533 u32 reg; 1534 int i; 1535 1536 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1537 return true; 1538 1539 /* If the VFs have been disabled, this means something else is 1540 * resetting the VF, so we shouldn't continue. 1541 */ 1542 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1543 return true; 1544 1545 i40e_trigger_vf_reset(vf, flr); 1546 1547 /* poll VPGEN_VFRSTAT reg to make sure 1548 * that reset is complete 1549 */ 1550 for (i = 0; i < 10; i++) { 1551 /* VF reset requires driver to first reset the VF and then 1552 * poll the status register to make sure that the reset 1553 * completed successfully. Due to internal HW FIFO flushes, 1554 * we must wait 10ms before the register will be valid. 1555 */ 1556 usleep_range(10000, 20000); 1557 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1558 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1559 rsd = true; 1560 break; 1561 } 1562 } 1563 1564 if (flr) 1565 usleep_range(10000, 20000); 1566 1567 if (!rsd) 1568 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1569 vf->vf_id); 1570 usleep_range(10000, 20000); 1571 1572 /* On initial reset, we don't have any queues to disable */ 1573 if (vf->lan_vsi_idx != 0) 1574 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1575 1576 i40e_cleanup_reset_vf(vf); 1577 1578 i40e_flush(hw); 1579 clear_bit(__I40E_VF_DISABLE, pf->state); 1580 1581 return true; 1582 } 1583 1584 /** 1585 * i40e_reset_all_vfs 1586 * @pf: pointer to the PF structure 1587 * @flr: VFLR was issued or not 1588 * 1589 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1590 * VF, then do all the waiting in one chunk, and finally finish restoring each 1591 * VF after the wait. This is useful during PF routines which need to reset 1592 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1593 * 1594 * Returns true if any VFs were reset, and false otherwise. 1595 **/ 1596 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1597 { 1598 struct i40e_hw *hw = &pf->hw; 1599 struct i40e_vf *vf; 1600 int i, v; 1601 u32 reg; 1602 1603 /* If we don't have any VFs, then there is nothing to reset */ 1604 if (!pf->num_alloc_vfs) 1605 return false; 1606 1607 /* If VFs have been disabled, there is no need to reset */ 1608 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1609 return false; 1610 1611 /* Begin reset on all VFs at once */ 1612 for (v = 0; v < pf->num_alloc_vfs; v++) 1613 i40e_trigger_vf_reset(&pf->vf[v], flr); 1614 1615 /* HW requires some time to make sure it can flush the FIFO for a VF 1616 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1617 * sequence to make sure that it has completed. We'll keep track of 1618 * the VFs using a simple iterator that increments once that VF has 1619 * finished resetting. 1620 */ 1621 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1622 usleep_range(10000, 20000); 1623 1624 /* Check each VF in sequence, beginning with the VF to fail 1625 * the previous check. 1626 */ 1627 while (v < pf->num_alloc_vfs) { 1628 vf = &pf->vf[v]; 1629 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1630 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1631 break; 1632 1633 /* If the current VF has finished resetting, move on 1634 * to the next VF in sequence. 1635 */ 1636 v++; 1637 } 1638 } 1639 1640 if (flr) 1641 usleep_range(10000, 20000); 1642 1643 /* Display a warning if at least one VF didn't manage to reset in 1644 * time, but continue on with the operation. 1645 */ 1646 if (v < pf->num_alloc_vfs) 1647 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1648 pf->vf[v].vf_id); 1649 usleep_range(10000, 20000); 1650 1651 /* Begin disabling all the rings associated with VFs, but do not wait 1652 * between each VF. 1653 */ 1654 for (v = 0; v < pf->num_alloc_vfs; v++) { 1655 /* On initial reset, we don't have any queues to disable */ 1656 if (pf->vf[v].lan_vsi_idx == 0) 1657 continue; 1658 1659 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1660 } 1661 1662 /* Now that we've notified HW to disable all of the VF rings, wait 1663 * until they finish. 1664 */ 1665 for (v = 0; v < pf->num_alloc_vfs; v++) { 1666 /* On initial reset, we don't have any queues to disable */ 1667 if (pf->vf[v].lan_vsi_idx == 0) 1668 continue; 1669 1670 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1671 } 1672 1673 /* Hw may need up to 50ms to finish disabling the RX queues. We 1674 * minimize the wait by delaying only once for all VFs. 1675 */ 1676 mdelay(50); 1677 1678 /* Finish the reset on each VF */ 1679 for (v = 0; v < pf->num_alloc_vfs; v++) 1680 i40e_cleanup_reset_vf(&pf->vf[v]); 1681 1682 i40e_flush(hw); 1683 clear_bit(__I40E_VF_DISABLE, pf->state); 1684 1685 return true; 1686 } 1687 1688 /** 1689 * i40e_free_vfs 1690 * @pf: pointer to the PF structure 1691 * 1692 * free VF resources 1693 **/ 1694 void i40e_free_vfs(struct i40e_pf *pf) 1695 { 1696 struct i40e_hw *hw = &pf->hw; 1697 u32 reg_idx, bit_idx; 1698 int i, tmp, vf_id; 1699 1700 if (!pf->vf) 1701 return; 1702 1703 set_bit(__I40E_VFS_RELEASING, pf->state); 1704 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1705 usleep_range(1000, 2000); 1706 1707 i40e_notify_client_of_vf_enable(pf, 0); 1708 1709 /* Disable IOV before freeing resources. This lets any VF drivers 1710 * running in the host get themselves cleaned up before we yank 1711 * the carpet out from underneath their feet. 1712 */ 1713 if (!pci_vfs_assigned(pf->pdev)) 1714 pci_disable_sriov(pf->pdev); 1715 else 1716 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1717 1718 /* Amortize wait time by stopping all VFs at the same time */ 1719 for (i = 0; i < pf->num_alloc_vfs; i++) { 1720 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1721 continue; 1722 1723 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1724 } 1725 1726 for (i = 0; i < pf->num_alloc_vfs; i++) { 1727 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1728 continue; 1729 1730 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1731 } 1732 1733 /* free up VF resources */ 1734 tmp = pf->num_alloc_vfs; 1735 pf->num_alloc_vfs = 0; 1736 for (i = 0; i < tmp; i++) { 1737 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1738 i40e_free_vf_res(&pf->vf[i]); 1739 /* disable qp mappings */ 1740 i40e_disable_vf_mappings(&pf->vf[i]); 1741 } 1742 1743 kfree(pf->vf); 1744 pf->vf = NULL; 1745 1746 /* This check is for when the driver is unloaded while VFs are 1747 * assigned. Setting the number of VFs to 0 through sysfs is caught 1748 * before this function ever gets called. 1749 */ 1750 if (!pci_vfs_assigned(pf->pdev)) { 1751 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1752 * work correctly when SR-IOV gets re-enabled. 1753 */ 1754 for (vf_id = 0; vf_id < tmp; vf_id++) { 1755 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1756 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1757 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1758 } 1759 } 1760 clear_bit(__I40E_VF_DISABLE, pf->state); 1761 clear_bit(__I40E_VFS_RELEASING, pf->state); 1762 } 1763 1764 #ifdef CONFIG_PCI_IOV 1765 /** 1766 * i40e_alloc_vfs 1767 * @pf: pointer to the PF structure 1768 * @num_alloc_vfs: number of VFs to allocate 1769 * 1770 * allocate VF resources 1771 **/ 1772 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1773 { 1774 struct i40e_vf *vfs; 1775 int i, ret = 0; 1776 1777 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1778 i40e_irq_dynamic_disable_icr0(pf); 1779 1780 /* Check to see if we're just allocating resources for extant VFs */ 1781 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1782 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1783 if (ret) { 1784 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1785 pf->num_alloc_vfs = 0; 1786 goto err_iov; 1787 } 1788 } 1789 /* allocate memory */ 1790 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1791 if (!vfs) { 1792 ret = -ENOMEM; 1793 goto err_alloc; 1794 } 1795 pf->vf = vfs; 1796 1797 /* apply default profile */ 1798 for (i = 0; i < num_alloc_vfs; i++) { 1799 vfs[i].pf = pf; 1800 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1801 vfs[i].vf_id = i; 1802 1803 /* assign default capabilities */ 1804 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1805 vfs[i].spoofchk = true; 1806 1807 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1808 1809 } 1810 pf->num_alloc_vfs = num_alloc_vfs; 1811 1812 /* VF resources get allocated during reset */ 1813 i40e_reset_all_vfs(pf, false); 1814 1815 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1816 1817 err_alloc: 1818 if (ret) 1819 i40e_free_vfs(pf); 1820 err_iov: 1821 /* Re-enable interrupt 0. */ 1822 i40e_irq_dynamic_enable_icr0(pf); 1823 return ret; 1824 } 1825 1826 #endif 1827 /** 1828 * i40e_pci_sriov_enable 1829 * @pdev: pointer to a pci_dev structure 1830 * @num_vfs: number of VFs to allocate 1831 * 1832 * Enable or change the number of VFs 1833 **/ 1834 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1835 { 1836 #ifdef CONFIG_PCI_IOV 1837 struct i40e_pf *pf = pci_get_drvdata(pdev); 1838 int pre_existing_vfs = pci_num_vf(pdev); 1839 int err = 0; 1840 1841 if (test_bit(__I40E_TESTING, pf->state)) { 1842 dev_warn(&pdev->dev, 1843 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1844 err = -EPERM; 1845 goto err_out; 1846 } 1847 1848 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1849 i40e_free_vfs(pf); 1850 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1851 goto out; 1852 1853 if (num_vfs > pf->num_req_vfs) { 1854 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1855 num_vfs, pf->num_req_vfs); 1856 err = -EPERM; 1857 goto err_out; 1858 } 1859 1860 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1861 err = i40e_alloc_vfs(pf, num_vfs); 1862 if (err) { 1863 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1864 goto err_out; 1865 } 1866 1867 out: 1868 return num_vfs; 1869 1870 err_out: 1871 return err; 1872 #endif 1873 return 0; 1874 } 1875 1876 /** 1877 * i40e_pci_sriov_configure 1878 * @pdev: pointer to a pci_dev structure 1879 * @num_vfs: number of VFs to allocate 1880 * 1881 * Enable or change the number of VFs. Called when the user updates the number 1882 * of VFs in sysfs. 1883 **/ 1884 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1885 { 1886 struct i40e_pf *pf = pci_get_drvdata(pdev); 1887 int ret = 0; 1888 1889 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1890 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1891 return -EAGAIN; 1892 } 1893 1894 if (num_vfs) { 1895 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1896 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1897 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1898 } 1899 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1900 goto sriov_configure_out; 1901 } 1902 1903 if (!pci_vfs_assigned(pf->pdev)) { 1904 i40e_free_vfs(pf); 1905 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1906 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1907 } else { 1908 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1909 ret = -EINVAL; 1910 goto sriov_configure_out; 1911 } 1912 sriov_configure_out: 1913 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1914 return ret; 1915 } 1916 1917 /***********************virtual channel routines******************/ 1918 1919 /** 1920 * i40e_vc_send_msg_to_vf 1921 * @vf: pointer to the VF info 1922 * @v_opcode: virtual channel opcode 1923 * @v_retval: virtual channel return value 1924 * @msg: pointer to the msg buffer 1925 * @msglen: msg length 1926 * 1927 * send msg to VF 1928 **/ 1929 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1930 u32 v_retval, u8 *msg, u16 msglen) 1931 { 1932 struct i40e_pf *pf; 1933 struct i40e_hw *hw; 1934 int abs_vf_id; 1935 i40e_status aq_ret; 1936 1937 /* validate the request */ 1938 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1939 return -EINVAL; 1940 1941 pf = vf->pf; 1942 hw = &pf->hw; 1943 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1944 1945 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1946 msg, msglen, NULL); 1947 if (aq_ret) { 1948 dev_info(&pf->pdev->dev, 1949 "Unable to send the message to VF %d aq_err %d\n", 1950 vf->vf_id, pf->hw.aq.asq_last_status); 1951 return -EIO; 1952 } 1953 1954 return 0; 1955 } 1956 1957 /** 1958 * i40e_vc_send_resp_to_vf 1959 * @vf: pointer to the VF info 1960 * @opcode: operation code 1961 * @retval: return value 1962 * 1963 * send resp msg to VF 1964 **/ 1965 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1966 enum virtchnl_ops opcode, 1967 i40e_status retval) 1968 { 1969 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1970 } 1971 1972 /** 1973 * i40e_sync_vf_state 1974 * @vf: pointer to the VF info 1975 * @state: VF state 1976 * 1977 * Called from a VF message to synchronize the service with a potential 1978 * VF reset state 1979 **/ 1980 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 1981 { 1982 int i; 1983 1984 /* When handling some messages, it needs VF state to be set. 1985 * It is possible that this flag is cleared during VF reset, 1986 * so there is a need to wait until the end of the reset to 1987 * handle the request message correctly. 1988 */ 1989 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 1990 if (test_bit(state, &vf->vf_states)) 1991 return true; 1992 usleep_range(10000, 20000); 1993 } 1994 1995 return test_bit(state, &vf->vf_states); 1996 } 1997 1998 /** 1999 * i40e_vc_get_version_msg 2000 * @vf: pointer to the VF info 2001 * @msg: pointer to the msg buffer 2002 * 2003 * called from the VF to request the API version used by the PF 2004 **/ 2005 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2006 { 2007 struct virtchnl_version_info info = { 2008 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2009 }; 2010 2011 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2012 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2013 if (VF_IS_V10(&vf->vf_ver)) 2014 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2015 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2016 I40E_SUCCESS, (u8 *)&info, 2017 sizeof(struct virtchnl_version_info)); 2018 } 2019 2020 /** 2021 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2022 * @vf: pointer to VF structure 2023 **/ 2024 static void i40e_del_qch(struct i40e_vf *vf) 2025 { 2026 struct i40e_pf *pf = vf->pf; 2027 int i; 2028 2029 /* first element in the array belongs to primary VF VSI and we shouldn't 2030 * delete it. We should however delete the rest of the VSIs created 2031 */ 2032 for (i = 1; i < vf->num_tc; i++) { 2033 if (vf->ch[i].vsi_idx) { 2034 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2035 vf->ch[i].vsi_idx = 0; 2036 vf->ch[i].vsi_id = 0; 2037 } 2038 } 2039 } 2040 2041 /** 2042 * i40e_vc_get_vf_resources_msg 2043 * @vf: pointer to the VF info 2044 * @msg: pointer to the msg buffer 2045 * 2046 * called from the VF to request its resources 2047 **/ 2048 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2049 { 2050 struct virtchnl_vf_resource *vfres = NULL; 2051 struct i40e_pf *pf = vf->pf; 2052 i40e_status aq_ret = 0; 2053 struct i40e_vsi *vsi; 2054 int num_vsis = 1; 2055 size_t len = 0; 2056 int ret; 2057 2058 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2059 aq_ret = I40E_ERR_PARAM; 2060 goto err; 2061 } 2062 2063 len = struct_size(vfres, vsi_res, num_vsis); 2064 vfres = kzalloc(len, GFP_KERNEL); 2065 if (!vfres) { 2066 aq_ret = I40E_ERR_NO_MEMORY; 2067 len = 0; 2068 goto err; 2069 } 2070 if (VF_IS_V11(&vf->vf_ver)) 2071 vf->driver_caps = *(u32 *)msg; 2072 else 2073 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2074 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2075 VIRTCHNL_VF_OFFLOAD_VLAN; 2076 2077 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2078 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2079 vsi = pf->vsi[vf->lan_vsi_idx]; 2080 if (!vsi->info.pvid) 2081 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2082 2083 if (i40e_vf_client_capable(pf, vf->vf_id) && 2084 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 2085 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 2086 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2087 } else { 2088 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2089 } 2090 2091 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2092 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2093 } else { 2094 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2095 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2096 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2097 else 2098 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2099 } 2100 2101 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2102 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2103 vfres->vf_cap_flags |= 2104 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2105 } 2106 2107 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2108 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2109 2110 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2111 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2112 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2113 2114 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2115 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2116 dev_err(&pf->pdev->dev, 2117 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2118 vf->vf_id); 2119 aq_ret = I40E_ERR_PARAM; 2120 goto err; 2121 } 2122 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2123 } 2124 2125 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2126 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2127 vfres->vf_cap_flags |= 2128 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2129 } 2130 2131 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2132 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2133 2134 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2135 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2136 2137 vfres->num_vsis = num_vsis; 2138 vfres->num_queue_pairs = vf->num_queue_pairs; 2139 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2140 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2141 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2142 2143 if (vf->lan_vsi_idx) { 2144 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2145 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2146 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2147 /* VFs only use TC 0 */ 2148 vfres->vsi_res[0].qset_handle 2149 = le16_to_cpu(vsi->info.qs_handle[0]); 2150 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2151 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2152 eth_zero_addr(vf->default_lan_addr.addr); 2153 } 2154 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2155 vf->default_lan_addr.addr); 2156 } 2157 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2158 2159 err: 2160 /* send the response back to the VF */ 2161 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2162 aq_ret, (u8 *)vfres, len); 2163 2164 kfree(vfres); 2165 return ret; 2166 } 2167 2168 /** 2169 * i40e_vc_config_promiscuous_mode_msg 2170 * @vf: pointer to the VF info 2171 * @msg: pointer to the msg buffer 2172 * 2173 * called from the VF to configure the promiscuous mode of 2174 * VF vsis 2175 **/ 2176 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2177 { 2178 struct virtchnl_promisc_info *info = 2179 (struct virtchnl_promisc_info *)msg; 2180 struct i40e_pf *pf = vf->pf; 2181 i40e_status aq_ret = 0; 2182 bool allmulti = false; 2183 bool alluni = false; 2184 2185 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2186 aq_ret = I40E_ERR_PARAM; 2187 goto err_out; 2188 } 2189 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2190 dev_err(&pf->pdev->dev, 2191 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2192 vf->vf_id); 2193 2194 /* Lie to the VF on purpose, because this is an error we can 2195 * ignore. Unprivileged VF is not a virtual channel error. 2196 */ 2197 aq_ret = 0; 2198 goto err_out; 2199 } 2200 2201 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2202 aq_ret = I40E_ERR_PARAM; 2203 goto err_out; 2204 } 2205 2206 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2207 aq_ret = I40E_ERR_PARAM; 2208 goto err_out; 2209 } 2210 2211 /* Multicast promiscuous handling*/ 2212 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2213 allmulti = true; 2214 2215 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2216 alluni = true; 2217 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2218 alluni); 2219 if (aq_ret) 2220 goto err_out; 2221 2222 if (allmulti) { 2223 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2224 &vf->vf_states)) 2225 dev_info(&pf->pdev->dev, 2226 "VF %d successfully set multicast promiscuous mode\n", 2227 vf->vf_id); 2228 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2229 &vf->vf_states)) 2230 dev_info(&pf->pdev->dev, 2231 "VF %d successfully unset multicast promiscuous mode\n", 2232 vf->vf_id); 2233 2234 if (alluni) { 2235 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2236 &vf->vf_states)) 2237 dev_info(&pf->pdev->dev, 2238 "VF %d successfully set unicast promiscuous mode\n", 2239 vf->vf_id); 2240 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2241 &vf->vf_states)) 2242 dev_info(&pf->pdev->dev, 2243 "VF %d successfully unset unicast promiscuous mode\n", 2244 vf->vf_id); 2245 2246 err_out: 2247 /* send the response to the VF */ 2248 return i40e_vc_send_resp_to_vf(vf, 2249 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2250 aq_ret); 2251 } 2252 2253 /** 2254 * i40e_vc_config_queues_msg 2255 * @vf: pointer to the VF info 2256 * @msg: pointer to the msg buffer 2257 * 2258 * called from the VF to configure the rx/tx 2259 * queues 2260 **/ 2261 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2262 { 2263 struct virtchnl_vsi_queue_config_info *qci = 2264 (struct virtchnl_vsi_queue_config_info *)msg; 2265 struct virtchnl_queue_pair_info *qpi; 2266 u16 vsi_id, vsi_queue_id = 0; 2267 struct i40e_pf *pf = vf->pf; 2268 i40e_status aq_ret = 0; 2269 int i, j = 0, idx = 0; 2270 struct i40e_vsi *vsi; 2271 u16 num_qps_all = 0; 2272 2273 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2274 aq_ret = I40E_ERR_PARAM; 2275 goto error_param; 2276 } 2277 2278 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2279 aq_ret = I40E_ERR_PARAM; 2280 goto error_param; 2281 } 2282 2283 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2284 aq_ret = I40E_ERR_PARAM; 2285 goto error_param; 2286 } 2287 2288 if (vf->adq_enabled) { 2289 for (i = 0; i < vf->num_tc; i++) 2290 num_qps_all += vf->ch[i].num_qps; 2291 if (num_qps_all != qci->num_queue_pairs) { 2292 aq_ret = I40E_ERR_PARAM; 2293 goto error_param; 2294 } 2295 } 2296 2297 vsi_id = qci->vsi_id; 2298 2299 for (i = 0; i < qci->num_queue_pairs; i++) { 2300 qpi = &qci->qpair[i]; 2301 2302 if (!vf->adq_enabled) { 2303 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2304 qpi->txq.queue_id)) { 2305 aq_ret = I40E_ERR_PARAM; 2306 goto error_param; 2307 } 2308 2309 vsi_queue_id = qpi->txq.queue_id; 2310 2311 if (qpi->txq.vsi_id != qci->vsi_id || 2312 qpi->rxq.vsi_id != qci->vsi_id || 2313 qpi->rxq.queue_id != vsi_queue_id) { 2314 aq_ret = I40E_ERR_PARAM; 2315 goto error_param; 2316 } 2317 } 2318 2319 if (vf->adq_enabled) { 2320 if (idx >= ARRAY_SIZE(vf->ch)) { 2321 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2322 goto error_param; 2323 } 2324 vsi_id = vf->ch[idx].vsi_id; 2325 } 2326 2327 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2328 &qpi->rxq) || 2329 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2330 &qpi->txq)) { 2331 aq_ret = I40E_ERR_PARAM; 2332 goto error_param; 2333 } 2334 2335 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2336 * VF does not know about these additional VSIs and all 2337 * it cares is about its own queues. PF configures these queues 2338 * to its appropriate VSIs based on TC mapping 2339 */ 2340 if (vf->adq_enabled) { 2341 if (idx >= ARRAY_SIZE(vf->ch)) { 2342 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2343 goto error_param; 2344 } 2345 if (j == (vf->ch[idx].num_qps - 1)) { 2346 idx++; 2347 j = 0; /* resetting the queue count */ 2348 vsi_queue_id = 0; 2349 } else { 2350 j++; 2351 vsi_queue_id++; 2352 } 2353 } 2354 } 2355 /* set vsi num_queue_pairs in use to num configured by VF */ 2356 if (!vf->adq_enabled) { 2357 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2358 qci->num_queue_pairs; 2359 } else { 2360 for (i = 0; i < vf->num_tc; i++) { 2361 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2362 vsi->num_queue_pairs = vf->ch[i].num_qps; 2363 2364 if (i40e_update_adq_vsi_queues(vsi, i)) { 2365 aq_ret = I40E_ERR_CONFIG; 2366 goto error_param; 2367 } 2368 } 2369 } 2370 2371 error_param: 2372 /* send the response to the VF */ 2373 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2374 aq_ret); 2375 } 2376 2377 /** 2378 * i40e_validate_queue_map - check queue map is valid 2379 * @vf: the VF structure pointer 2380 * @vsi_id: vsi id 2381 * @queuemap: Tx or Rx queue map 2382 * 2383 * check if Tx or Rx queue map is valid 2384 **/ 2385 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2386 unsigned long queuemap) 2387 { 2388 u16 vsi_queue_id, queue_id; 2389 2390 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2391 if (vf->adq_enabled) { 2392 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2393 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2394 } else { 2395 queue_id = vsi_queue_id; 2396 } 2397 2398 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2399 return -EINVAL; 2400 } 2401 2402 return 0; 2403 } 2404 2405 /** 2406 * i40e_vc_config_irq_map_msg 2407 * @vf: pointer to the VF info 2408 * @msg: pointer to the msg buffer 2409 * 2410 * called from the VF to configure the irq to 2411 * queue map 2412 **/ 2413 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2414 { 2415 struct virtchnl_irq_map_info *irqmap_info = 2416 (struct virtchnl_irq_map_info *)msg; 2417 struct virtchnl_vector_map *map; 2418 u16 vsi_id; 2419 i40e_status aq_ret = 0; 2420 int i; 2421 2422 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2423 aq_ret = I40E_ERR_PARAM; 2424 goto error_param; 2425 } 2426 2427 if (irqmap_info->num_vectors > 2428 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2429 aq_ret = I40E_ERR_PARAM; 2430 goto error_param; 2431 } 2432 2433 for (i = 0; i < irqmap_info->num_vectors; i++) { 2434 map = &irqmap_info->vecmap[i]; 2435 /* validate msg params */ 2436 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2437 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2438 aq_ret = I40E_ERR_PARAM; 2439 goto error_param; 2440 } 2441 vsi_id = map->vsi_id; 2442 2443 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2444 aq_ret = I40E_ERR_PARAM; 2445 goto error_param; 2446 } 2447 2448 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2449 aq_ret = I40E_ERR_PARAM; 2450 goto error_param; 2451 } 2452 2453 i40e_config_irq_link_list(vf, vsi_id, map); 2454 } 2455 error_param: 2456 /* send the response to the VF */ 2457 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2458 aq_ret); 2459 } 2460 2461 /** 2462 * i40e_ctrl_vf_tx_rings 2463 * @vsi: the SRIOV VSI being configured 2464 * @q_map: bit map of the queues to be enabled 2465 * @enable: start or stop the queue 2466 **/ 2467 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2468 bool enable) 2469 { 2470 struct i40e_pf *pf = vsi->back; 2471 int ret = 0; 2472 u16 q_id; 2473 2474 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2475 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2476 vsi->base_queue + q_id, 2477 false /*is xdp*/, enable); 2478 if (ret) 2479 break; 2480 } 2481 return ret; 2482 } 2483 2484 /** 2485 * i40e_ctrl_vf_rx_rings 2486 * @vsi: the SRIOV VSI being configured 2487 * @q_map: bit map of the queues to be enabled 2488 * @enable: start or stop the queue 2489 **/ 2490 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2491 bool enable) 2492 { 2493 struct i40e_pf *pf = vsi->back; 2494 int ret = 0; 2495 u16 q_id; 2496 2497 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2498 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2499 enable); 2500 if (ret) 2501 break; 2502 } 2503 return ret; 2504 } 2505 2506 /** 2507 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2508 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2509 * 2510 * Returns true if validation was successful, else false. 2511 */ 2512 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2513 { 2514 if ((!vqs->rx_queues && !vqs->tx_queues) || 2515 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2516 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2517 return false; 2518 2519 return true; 2520 } 2521 2522 /** 2523 * i40e_vc_enable_queues_msg 2524 * @vf: pointer to the VF info 2525 * @msg: pointer to the msg buffer 2526 * 2527 * called from the VF to enable all or specific queue(s) 2528 **/ 2529 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2530 { 2531 struct virtchnl_queue_select *vqs = 2532 (struct virtchnl_queue_select *)msg; 2533 struct i40e_pf *pf = vf->pf; 2534 i40e_status aq_ret = 0; 2535 int i; 2536 2537 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2538 aq_ret = I40E_ERR_PARAM; 2539 goto error_param; 2540 } 2541 2542 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2543 aq_ret = I40E_ERR_PARAM; 2544 goto error_param; 2545 } 2546 2547 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2548 aq_ret = I40E_ERR_PARAM; 2549 goto error_param; 2550 } 2551 2552 /* Use the queue bit map sent by the VF */ 2553 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2554 true)) { 2555 aq_ret = I40E_ERR_TIMEOUT; 2556 goto error_param; 2557 } 2558 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2559 true)) { 2560 aq_ret = I40E_ERR_TIMEOUT; 2561 goto error_param; 2562 } 2563 2564 /* need to start the rings for additional ADq VSI's as well */ 2565 if (vf->adq_enabled) { 2566 /* zero belongs to LAN VSI */ 2567 for (i = 1; i < vf->num_tc; i++) { 2568 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2569 aq_ret = I40E_ERR_TIMEOUT; 2570 } 2571 } 2572 2573 error_param: 2574 /* send the response to the VF */ 2575 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2576 aq_ret); 2577 } 2578 2579 /** 2580 * i40e_vc_disable_queues_msg 2581 * @vf: pointer to the VF info 2582 * @msg: pointer to the msg buffer 2583 * 2584 * called from the VF to disable all or specific 2585 * queue(s) 2586 **/ 2587 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2588 { 2589 struct virtchnl_queue_select *vqs = 2590 (struct virtchnl_queue_select *)msg; 2591 struct i40e_pf *pf = vf->pf; 2592 i40e_status aq_ret = 0; 2593 2594 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2595 aq_ret = I40E_ERR_PARAM; 2596 goto error_param; 2597 } 2598 2599 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2600 aq_ret = I40E_ERR_PARAM; 2601 goto error_param; 2602 } 2603 2604 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2605 aq_ret = I40E_ERR_PARAM; 2606 goto error_param; 2607 } 2608 2609 /* Use the queue bit map sent by the VF */ 2610 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2611 false)) { 2612 aq_ret = I40E_ERR_TIMEOUT; 2613 goto error_param; 2614 } 2615 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2616 false)) { 2617 aq_ret = I40E_ERR_TIMEOUT; 2618 goto error_param; 2619 } 2620 error_param: 2621 /* send the response to the VF */ 2622 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2623 aq_ret); 2624 } 2625 2626 /** 2627 * i40e_check_enough_queue - find big enough queue number 2628 * @vf: pointer to the VF info 2629 * @needed: the number of items needed 2630 * 2631 * Returns the base item index of the queue, or negative for error 2632 **/ 2633 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2634 { 2635 unsigned int i, cur_queues, more, pool_size; 2636 struct i40e_lump_tracking *pile; 2637 struct i40e_pf *pf = vf->pf; 2638 struct i40e_vsi *vsi; 2639 2640 vsi = pf->vsi[vf->lan_vsi_idx]; 2641 cur_queues = vsi->alloc_queue_pairs; 2642 2643 /* if current allocated queues are enough for need */ 2644 if (cur_queues >= needed) 2645 return vsi->base_queue; 2646 2647 pile = pf->qp_pile; 2648 if (cur_queues > 0) { 2649 /* if the allocated queues are not zero 2650 * just check if there are enough queues for more 2651 * behind the allocated queues. 2652 */ 2653 more = needed - cur_queues; 2654 for (i = vsi->base_queue + cur_queues; 2655 i < pile->num_entries; i++) { 2656 if (pile->list[i] & I40E_PILE_VALID_BIT) 2657 break; 2658 2659 if (more-- == 1) 2660 /* there is enough */ 2661 return vsi->base_queue; 2662 } 2663 } 2664 2665 pool_size = 0; 2666 for (i = 0; i < pile->num_entries; i++) { 2667 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2668 pool_size = 0; 2669 continue; 2670 } 2671 if (needed <= ++pool_size) 2672 /* there is enough */ 2673 return i; 2674 } 2675 2676 return -ENOMEM; 2677 } 2678 2679 /** 2680 * i40e_vc_request_queues_msg 2681 * @vf: pointer to the VF info 2682 * @msg: pointer to the msg buffer 2683 * 2684 * VFs get a default number of queues but can use this message to request a 2685 * different number. If the request is successful, PF will reset the VF and 2686 * return 0. If unsuccessful, PF will send message informing VF of number of 2687 * available queues and return result of sending VF a message. 2688 **/ 2689 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2690 { 2691 struct virtchnl_vf_res_request *vfres = 2692 (struct virtchnl_vf_res_request *)msg; 2693 u16 req_pairs = vfres->num_queue_pairs; 2694 u8 cur_pairs = vf->num_queue_pairs; 2695 struct i40e_pf *pf = vf->pf; 2696 2697 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2698 return -EINVAL; 2699 2700 if (req_pairs > I40E_MAX_VF_QUEUES) { 2701 dev_err(&pf->pdev->dev, 2702 "VF %d tried to request more than %d queues.\n", 2703 vf->vf_id, 2704 I40E_MAX_VF_QUEUES); 2705 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2706 } else if (req_pairs - cur_pairs > pf->queues_left) { 2707 dev_warn(&pf->pdev->dev, 2708 "VF %d requested %d more queues, but only %d left.\n", 2709 vf->vf_id, 2710 req_pairs - cur_pairs, 2711 pf->queues_left); 2712 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2713 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2714 dev_warn(&pf->pdev->dev, 2715 "VF %d requested %d more queues, but there is not enough for it.\n", 2716 vf->vf_id, 2717 req_pairs - cur_pairs); 2718 vfres->num_queue_pairs = cur_pairs; 2719 } else { 2720 /* successful request */ 2721 vf->num_req_queues = req_pairs; 2722 i40e_vc_reset_vf(vf, true); 2723 return 0; 2724 } 2725 2726 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2727 (u8 *)vfres, sizeof(*vfres)); 2728 } 2729 2730 /** 2731 * i40e_vc_get_stats_msg 2732 * @vf: pointer to the VF info 2733 * @msg: pointer to the msg buffer 2734 * 2735 * called from the VF to get vsi stats 2736 **/ 2737 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2738 { 2739 struct virtchnl_queue_select *vqs = 2740 (struct virtchnl_queue_select *)msg; 2741 struct i40e_pf *pf = vf->pf; 2742 struct i40e_eth_stats stats; 2743 i40e_status aq_ret = 0; 2744 struct i40e_vsi *vsi; 2745 2746 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2747 2748 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2749 aq_ret = I40E_ERR_PARAM; 2750 goto error_param; 2751 } 2752 2753 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2754 aq_ret = I40E_ERR_PARAM; 2755 goto error_param; 2756 } 2757 2758 vsi = pf->vsi[vf->lan_vsi_idx]; 2759 if (!vsi) { 2760 aq_ret = I40E_ERR_PARAM; 2761 goto error_param; 2762 } 2763 i40e_update_eth_stats(vsi); 2764 stats = vsi->eth_stats; 2765 2766 error_param: 2767 /* send the response back to the VF */ 2768 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2769 (u8 *)&stats, sizeof(stats)); 2770 } 2771 2772 #define I40E_MAX_MACVLAN_PER_HW 3072 2773 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2774 (num_ports)) 2775 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2776 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2777 */ 2778 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2779 #define I40E_VC_MAX_VLAN_PER_VF 16 2780 2781 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2782 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2783 typeof(num_ports) num_ports_ = (num_ports); \ 2784 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2785 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2786 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2787 /** 2788 * i40e_check_vf_permission 2789 * @vf: pointer to the VF info 2790 * @al: MAC address list from virtchnl 2791 * 2792 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2793 * if any address in the list is not valid. Checks the following conditions: 2794 * 2795 * 1) broadcast and zero addresses are never valid 2796 * 2) unicast addresses are not allowed if the VMM has administratively set 2797 * the VF MAC address, unless the VF is marked as privileged. 2798 * 3) There is enough space to add all the addresses. 2799 * 2800 * Note that to guarantee consistency, it is expected this function be called 2801 * while holding the mac_filter_hash_lock, as otherwise the current number of 2802 * addresses might not be accurate. 2803 **/ 2804 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2805 struct virtchnl_ether_addr_list *al) 2806 { 2807 struct i40e_pf *pf = vf->pf; 2808 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2809 struct i40e_hw *hw = &pf->hw; 2810 int mac2add_cnt = 0; 2811 int i; 2812 2813 for (i = 0; i < al->num_elements; i++) { 2814 struct i40e_mac_filter *f; 2815 u8 *addr = al->list[i].addr; 2816 2817 if (is_broadcast_ether_addr(addr) || 2818 is_zero_ether_addr(addr)) { 2819 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2820 addr); 2821 return I40E_ERR_INVALID_MAC_ADDR; 2822 } 2823 2824 /* If the host VMM administrator has set the VF MAC address 2825 * administratively via the ndo_set_vf_mac command then deny 2826 * permission to the VF to add or delete unicast MAC addresses. 2827 * Unless the VF is privileged and then it can do whatever. 2828 * The VF may request to set the MAC address filter already 2829 * assigned to it so do not return an error in that case. 2830 */ 2831 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2832 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2833 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2834 dev_err(&pf->pdev->dev, 2835 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2836 return -EPERM; 2837 } 2838 2839 /*count filters that really will be added*/ 2840 f = i40e_find_mac(vsi, addr); 2841 if (!f) 2842 ++mac2add_cnt; 2843 } 2844 2845 /* If this VF is not privileged, then we can't add more than a limited 2846 * number of addresses. Check to make sure that the additions do not 2847 * push us over the limit. 2848 */ 2849 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2850 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2851 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2852 dev_err(&pf->pdev->dev, 2853 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2854 return -EPERM; 2855 } 2856 /* If this VF is trusted, it can use more resources than untrusted. 2857 * However to ensure that every trusted VF has appropriate number of 2858 * resources, divide whole pool of resources per port and then across 2859 * all VFs. 2860 */ 2861 } else { 2862 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2863 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2864 hw->num_ports)) { 2865 dev_err(&pf->pdev->dev, 2866 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2867 return -EPERM; 2868 } 2869 } 2870 return 0; 2871 } 2872 2873 /** 2874 * i40e_vc_add_mac_addr_msg 2875 * @vf: pointer to the VF info 2876 * @msg: pointer to the msg buffer 2877 * 2878 * add guest mac address filter 2879 **/ 2880 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2881 { 2882 struct virtchnl_ether_addr_list *al = 2883 (struct virtchnl_ether_addr_list *)msg; 2884 struct i40e_pf *pf = vf->pf; 2885 struct i40e_vsi *vsi = NULL; 2886 i40e_status ret = 0; 2887 int i; 2888 2889 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2890 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2891 ret = I40E_ERR_PARAM; 2892 goto error_param; 2893 } 2894 2895 vsi = pf->vsi[vf->lan_vsi_idx]; 2896 2897 /* Lock once, because all function inside for loop accesses VSI's 2898 * MAC filter list which needs to be protected using same lock. 2899 */ 2900 spin_lock_bh(&vsi->mac_filter_hash_lock); 2901 2902 ret = i40e_check_vf_permission(vf, al); 2903 if (ret) { 2904 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2905 goto error_param; 2906 } 2907 2908 /* add new addresses to the list */ 2909 for (i = 0; i < al->num_elements; i++) { 2910 struct i40e_mac_filter *f; 2911 2912 f = i40e_find_mac(vsi, al->list[i].addr); 2913 if (!f) { 2914 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2915 2916 if (!f) { 2917 dev_err(&pf->pdev->dev, 2918 "Unable to add MAC filter %pM for VF %d\n", 2919 al->list[i].addr, vf->vf_id); 2920 ret = I40E_ERR_PARAM; 2921 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2922 goto error_param; 2923 } 2924 if (is_valid_ether_addr(al->list[i].addr) && 2925 is_zero_ether_addr(vf->default_lan_addr.addr)) 2926 ether_addr_copy(vf->default_lan_addr.addr, 2927 al->list[i].addr); 2928 } 2929 } 2930 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2931 2932 /* program the updated filter list */ 2933 ret = i40e_sync_vsi_filters(vsi); 2934 if (ret) 2935 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2936 vf->vf_id, ret); 2937 2938 error_param: 2939 /* send the response to the VF */ 2940 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2941 ret, NULL, 0); 2942 } 2943 2944 /** 2945 * i40e_vc_del_mac_addr_msg 2946 * @vf: pointer to the VF info 2947 * @msg: pointer to the msg buffer 2948 * 2949 * remove guest mac address filter 2950 **/ 2951 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2952 { 2953 struct virtchnl_ether_addr_list *al = 2954 (struct virtchnl_ether_addr_list *)msg; 2955 bool was_unimac_deleted = false; 2956 struct i40e_pf *pf = vf->pf; 2957 struct i40e_vsi *vsi = NULL; 2958 i40e_status ret = 0; 2959 int i; 2960 2961 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2962 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2963 ret = I40E_ERR_PARAM; 2964 goto error_param; 2965 } 2966 2967 for (i = 0; i < al->num_elements; i++) { 2968 if (is_broadcast_ether_addr(al->list[i].addr) || 2969 is_zero_ether_addr(al->list[i].addr)) { 2970 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2971 al->list[i].addr, vf->vf_id); 2972 ret = I40E_ERR_INVALID_MAC_ADDR; 2973 goto error_param; 2974 } 2975 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 2976 was_unimac_deleted = true; 2977 } 2978 vsi = pf->vsi[vf->lan_vsi_idx]; 2979 2980 spin_lock_bh(&vsi->mac_filter_hash_lock); 2981 /* delete addresses from the list */ 2982 for (i = 0; i < al->num_elements; i++) 2983 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2984 ret = I40E_ERR_INVALID_MAC_ADDR; 2985 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2986 goto error_param; 2987 } 2988 2989 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2990 2991 /* program the updated filter list */ 2992 ret = i40e_sync_vsi_filters(vsi); 2993 if (ret) 2994 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2995 vf->vf_id, ret); 2996 2997 if (vf->trusted && was_unimac_deleted) { 2998 struct i40e_mac_filter *f; 2999 struct hlist_node *h; 3000 u8 *macaddr = NULL; 3001 int bkt; 3002 3003 /* set last unicast mac address as default */ 3004 spin_lock_bh(&vsi->mac_filter_hash_lock); 3005 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3006 if (is_valid_ether_addr(f->macaddr)) 3007 macaddr = f->macaddr; 3008 } 3009 if (macaddr) 3010 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3011 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3012 } 3013 error_param: 3014 /* send the response to the VF */ 3015 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3016 } 3017 3018 /** 3019 * i40e_vc_add_vlan_msg 3020 * @vf: pointer to the VF info 3021 * @msg: pointer to the msg buffer 3022 * 3023 * program guest vlan id 3024 **/ 3025 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3026 { 3027 struct virtchnl_vlan_filter_list *vfl = 3028 (struct virtchnl_vlan_filter_list *)msg; 3029 struct i40e_pf *pf = vf->pf; 3030 struct i40e_vsi *vsi = NULL; 3031 i40e_status aq_ret = 0; 3032 int i; 3033 3034 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3035 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3036 dev_err(&pf->pdev->dev, 3037 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3038 goto error_param; 3039 } 3040 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3041 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3042 aq_ret = I40E_ERR_PARAM; 3043 goto error_param; 3044 } 3045 3046 for (i = 0; i < vfl->num_elements; i++) { 3047 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3048 aq_ret = I40E_ERR_PARAM; 3049 dev_err(&pf->pdev->dev, 3050 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3051 goto error_param; 3052 } 3053 } 3054 vsi = pf->vsi[vf->lan_vsi_idx]; 3055 if (vsi->info.pvid) { 3056 aq_ret = I40E_ERR_PARAM; 3057 goto error_param; 3058 } 3059 3060 i40e_vlan_stripping_enable(vsi); 3061 for (i = 0; i < vfl->num_elements; i++) { 3062 /* add new VLAN filter */ 3063 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3064 if (!ret) 3065 vf->num_vlan++; 3066 3067 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3068 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3069 true, 3070 vfl->vlan_id[i], 3071 NULL); 3072 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3073 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3074 true, 3075 vfl->vlan_id[i], 3076 NULL); 3077 3078 if (ret) 3079 dev_err(&pf->pdev->dev, 3080 "Unable to add VLAN filter %d for VF %d, error %d\n", 3081 vfl->vlan_id[i], vf->vf_id, ret); 3082 } 3083 3084 error_param: 3085 /* send the response to the VF */ 3086 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3087 } 3088 3089 /** 3090 * i40e_vc_remove_vlan_msg 3091 * @vf: pointer to the VF info 3092 * @msg: pointer to the msg buffer 3093 * 3094 * remove programmed guest vlan id 3095 **/ 3096 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3097 { 3098 struct virtchnl_vlan_filter_list *vfl = 3099 (struct virtchnl_vlan_filter_list *)msg; 3100 struct i40e_pf *pf = vf->pf; 3101 struct i40e_vsi *vsi = NULL; 3102 i40e_status aq_ret = 0; 3103 int i; 3104 3105 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3106 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3107 aq_ret = I40E_ERR_PARAM; 3108 goto error_param; 3109 } 3110 3111 for (i = 0; i < vfl->num_elements; i++) { 3112 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3113 aq_ret = I40E_ERR_PARAM; 3114 goto error_param; 3115 } 3116 } 3117 3118 vsi = pf->vsi[vf->lan_vsi_idx]; 3119 if (vsi->info.pvid) { 3120 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3121 aq_ret = I40E_ERR_PARAM; 3122 goto error_param; 3123 } 3124 3125 for (i = 0; i < vfl->num_elements; i++) { 3126 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3127 vf->num_vlan--; 3128 3129 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3130 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3131 false, 3132 vfl->vlan_id[i], 3133 NULL); 3134 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3135 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3136 false, 3137 vfl->vlan_id[i], 3138 NULL); 3139 } 3140 3141 error_param: 3142 /* send the response to the VF */ 3143 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3144 } 3145 3146 /** 3147 * i40e_vc_iwarp_msg 3148 * @vf: pointer to the VF info 3149 * @msg: pointer to the msg buffer 3150 * @msglen: msg length 3151 * 3152 * called from the VF for the iwarp msgs 3153 **/ 3154 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3155 { 3156 struct i40e_pf *pf = vf->pf; 3157 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3158 i40e_status aq_ret = 0; 3159 3160 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3161 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3162 aq_ret = I40E_ERR_PARAM; 3163 goto error_param; 3164 } 3165 3166 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3167 msg, msglen); 3168 3169 error_param: 3170 /* send the response to the VF */ 3171 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 3172 aq_ret); 3173 } 3174 3175 /** 3176 * i40e_vc_iwarp_qvmap_msg 3177 * @vf: pointer to the VF info 3178 * @msg: pointer to the msg buffer 3179 * @config: config qvmap or release it 3180 * 3181 * called from the VF for the iwarp msgs 3182 **/ 3183 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3184 { 3185 struct virtchnl_iwarp_qvlist_info *qvlist_info = 3186 (struct virtchnl_iwarp_qvlist_info *)msg; 3187 i40e_status aq_ret = 0; 3188 3189 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3190 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3191 aq_ret = I40E_ERR_PARAM; 3192 goto error_param; 3193 } 3194 3195 if (config) { 3196 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 3197 aq_ret = I40E_ERR_PARAM; 3198 } else { 3199 i40e_release_iwarp_qvlist(vf); 3200 } 3201 3202 error_param: 3203 /* send the response to the VF */ 3204 return i40e_vc_send_resp_to_vf(vf, 3205 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 3206 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 3207 aq_ret); 3208 } 3209 3210 /** 3211 * i40e_vc_config_rss_key 3212 * @vf: pointer to the VF info 3213 * @msg: pointer to the msg buffer 3214 * 3215 * Configure the VF's RSS key 3216 **/ 3217 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3218 { 3219 struct virtchnl_rss_key *vrk = 3220 (struct virtchnl_rss_key *)msg; 3221 struct i40e_pf *pf = vf->pf; 3222 struct i40e_vsi *vsi = NULL; 3223 i40e_status aq_ret = 0; 3224 3225 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3226 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3227 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3228 aq_ret = I40E_ERR_PARAM; 3229 goto err; 3230 } 3231 3232 vsi = pf->vsi[vf->lan_vsi_idx]; 3233 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3234 err: 3235 /* send the response to the VF */ 3236 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3237 aq_ret); 3238 } 3239 3240 /** 3241 * i40e_vc_config_rss_lut 3242 * @vf: pointer to the VF info 3243 * @msg: pointer to the msg buffer 3244 * 3245 * Configure the VF's RSS LUT 3246 **/ 3247 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3248 { 3249 struct virtchnl_rss_lut *vrl = 3250 (struct virtchnl_rss_lut *)msg; 3251 struct i40e_pf *pf = vf->pf; 3252 struct i40e_vsi *vsi = NULL; 3253 i40e_status aq_ret = 0; 3254 u16 i; 3255 3256 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3257 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3258 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3259 aq_ret = I40E_ERR_PARAM; 3260 goto err; 3261 } 3262 3263 for (i = 0; i < vrl->lut_entries; i++) 3264 if (vrl->lut[i] >= vf->num_queue_pairs) { 3265 aq_ret = I40E_ERR_PARAM; 3266 goto err; 3267 } 3268 3269 vsi = pf->vsi[vf->lan_vsi_idx]; 3270 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3271 /* send the response to the VF */ 3272 err: 3273 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3274 aq_ret); 3275 } 3276 3277 /** 3278 * i40e_vc_get_rss_hena 3279 * @vf: pointer to the VF info 3280 * @msg: pointer to the msg buffer 3281 * 3282 * Return the RSS HENA bits allowed by the hardware 3283 **/ 3284 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3285 { 3286 struct virtchnl_rss_hena *vrh = NULL; 3287 struct i40e_pf *pf = vf->pf; 3288 i40e_status aq_ret = 0; 3289 int len = 0; 3290 3291 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3292 aq_ret = I40E_ERR_PARAM; 3293 goto err; 3294 } 3295 len = sizeof(struct virtchnl_rss_hena); 3296 3297 vrh = kzalloc(len, GFP_KERNEL); 3298 if (!vrh) { 3299 aq_ret = I40E_ERR_NO_MEMORY; 3300 len = 0; 3301 goto err; 3302 } 3303 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3304 err: 3305 /* send the response back to the VF */ 3306 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3307 aq_ret, (u8 *)vrh, len); 3308 kfree(vrh); 3309 return aq_ret; 3310 } 3311 3312 /** 3313 * i40e_vc_set_rss_hena 3314 * @vf: pointer to the VF info 3315 * @msg: pointer to the msg buffer 3316 * 3317 * Set the RSS HENA bits for the VF 3318 **/ 3319 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3320 { 3321 struct virtchnl_rss_hena *vrh = 3322 (struct virtchnl_rss_hena *)msg; 3323 struct i40e_pf *pf = vf->pf; 3324 struct i40e_hw *hw = &pf->hw; 3325 i40e_status aq_ret = 0; 3326 3327 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3328 aq_ret = I40E_ERR_PARAM; 3329 goto err; 3330 } 3331 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3332 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3333 (u32)(vrh->hena >> 32)); 3334 3335 /* send the response to the VF */ 3336 err: 3337 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3338 } 3339 3340 /** 3341 * i40e_vc_enable_vlan_stripping 3342 * @vf: pointer to the VF info 3343 * @msg: pointer to the msg buffer 3344 * 3345 * Enable vlan header stripping for the VF 3346 **/ 3347 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3348 { 3349 i40e_status aq_ret = 0; 3350 struct i40e_vsi *vsi; 3351 3352 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3353 aq_ret = I40E_ERR_PARAM; 3354 goto err; 3355 } 3356 3357 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3358 i40e_vlan_stripping_enable(vsi); 3359 3360 /* send the response to the VF */ 3361 err: 3362 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3363 aq_ret); 3364 } 3365 3366 /** 3367 * i40e_vc_disable_vlan_stripping 3368 * @vf: pointer to the VF info 3369 * @msg: pointer to the msg buffer 3370 * 3371 * Disable vlan header stripping for the VF 3372 **/ 3373 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3374 { 3375 i40e_status aq_ret = 0; 3376 struct i40e_vsi *vsi; 3377 3378 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3379 aq_ret = I40E_ERR_PARAM; 3380 goto err; 3381 } 3382 3383 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3384 i40e_vlan_stripping_disable(vsi); 3385 3386 /* send the response to the VF */ 3387 err: 3388 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3389 aq_ret); 3390 } 3391 3392 /** 3393 * i40e_validate_cloud_filter 3394 * @vf: pointer to VF structure 3395 * @tc_filter: pointer to filter requested 3396 * 3397 * This function validates cloud filter programmed as TC filter for ADq 3398 **/ 3399 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3400 struct virtchnl_filter *tc_filter) 3401 { 3402 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3403 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3404 struct i40e_pf *pf = vf->pf; 3405 struct i40e_vsi *vsi = NULL; 3406 struct i40e_mac_filter *f; 3407 struct hlist_node *h; 3408 bool found = false; 3409 int bkt; 3410 3411 if (!tc_filter->action) { 3412 dev_info(&pf->pdev->dev, 3413 "VF %d: Currently ADq doesn't support Drop Action\n", 3414 vf->vf_id); 3415 goto err; 3416 } 3417 3418 /* action_meta is TC number here to which the filter is applied */ 3419 if (!tc_filter->action_meta || 3420 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3421 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3422 vf->vf_id, tc_filter->action_meta); 3423 goto err; 3424 } 3425 3426 /* Check filter if it's programmed for advanced mode or basic mode. 3427 * There are two ADq modes (for VF only), 3428 * 1. Basic mode: intended to allow as many filter options as possible 3429 * to be added to a VF in Non-trusted mode. Main goal is 3430 * to add filters to its own MAC and VLAN id. 3431 * 2. Advanced mode: is for allowing filters to be applied other than 3432 * its own MAC or VLAN. This mode requires the VF to be 3433 * Trusted. 3434 */ 3435 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3436 vsi = pf->vsi[vf->lan_vsi_idx]; 3437 f = i40e_find_mac(vsi, data.dst_mac); 3438 3439 if (!f) { 3440 dev_info(&pf->pdev->dev, 3441 "Destination MAC %pM doesn't belong to VF %d\n", 3442 data.dst_mac, vf->vf_id); 3443 goto err; 3444 } 3445 3446 if (mask.vlan_id) { 3447 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3448 hlist) { 3449 if (f->vlan == ntohs(data.vlan_id)) { 3450 found = true; 3451 break; 3452 } 3453 } 3454 if (!found) { 3455 dev_info(&pf->pdev->dev, 3456 "VF %d doesn't have any VLAN id %u\n", 3457 vf->vf_id, ntohs(data.vlan_id)); 3458 goto err; 3459 } 3460 } 3461 } else { 3462 /* Check if VF is trusted */ 3463 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3464 dev_err(&pf->pdev->dev, 3465 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3466 vf->vf_id); 3467 return I40E_ERR_CONFIG; 3468 } 3469 } 3470 3471 if (mask.dst_mac[0] & data.dst_mac[0]) { 3472 if (is_broadcast_ether_addr(data.dst_mac) || 3473 is_zero_ether_addr(data.dst_mac)) { 3474 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3475 vf->vf_id, data.dst_mac); 3476 goto err; 3477 } 3478 } 3479 3480 if (mask.src_mac[0] & data.src_mac[0]) { 3481 if (is_broadcast_ether_addr(data.src_mac) || 3482 is_zero_ether_addr(data.src_mac)) { 3483 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3484 vf->vf_id, data.src_mac); 3485 goto err; 3486 } 3487 } 3488 3489 if (mask.dst_port & data.dst_port) { 3490 if (!data.dst_port) { 3491 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3492 vf->vf_id); 3493 goto err; 3494 } 3495 } 3496 3497 if (mask.src_port & data.src_port) { 3498 if (!data.src_port) { 3499 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3500 vf->vf_id); 3501 goto err; 3502 } 3503 } 3504 3505 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3506 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3507 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3508 vf->vf_id); 3509 goto err; 3510 } 3511 3512 if (mask.vlan_id & data.vlan_id) { 3513 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3514 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3515 vf->vf_id); 3516 goto err; 3517 } 3518 } 3519 3520 return I40E_SUCCESS; 3521 err: 3522 return I40E_ERR_CONFIG; 3523 } 3524 3525 /** 3526 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3527 * @vf: pointer to the VF info 3528 * @seid: seid of the vsi it is searching for 3529 **/ 3530 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3531 { 3532 struct i40e_pf *pf = vf->pf; 3533 struct i40e_vsi *vsi = NULL; 3534 int i; 3535 3536 for (i = 0; i < vf->num_tc ; i++) { 3537 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3538 if (vsi && vsi->seid == seid) 3539 return vsi; 3540 } 3541 return NULL; 3542 } 3543 3544 /** 3545 * i40e_del_all_cloud_filters 3546 * @vf: pointer to the VF info 3547 * 3548 * This function deletes all cloud filters 3549 **/ 3550 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3551 { 3552 struct i40e_cloud_filter *cfilter = NULL; 3553 struct i40e_pf *pf = vf->pf; 3554 struct i40e_vsi *vsi = NULL; 3555 struct hlist_node *node; 3556 int ret; 3557 3558 hlist_for_each_entry_safe(cfilter, node, 3559 &vf->cloud_filter_list, cloud_node) { 3560 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3561 3562 if (!vsi) { 3563 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3564 vf->vf_id, cfilter->seid); 3565 continue; 3566 } 3567 3568 if (cfilter->dst_port) 3569 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3570 false); 3571 else 3572 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3573 if (ret) 3574 dev_err(&pf->pdev->dev, 3575 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3576 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3577 i40e_aq_str(&pf->hw, 3578 pf->hw.aq.asq_last_status)); 3579 3580 hlist_del(&cfilter->cloud_node); 3581 kfree(cfilter); 3582 vf->num_cloud_filters--; 3583 } 3584 } 3585 3586 /** 3587 * i40e_vc_del_cloud_filter 3588 * @vf: pointer to the VF info 3589 * @msg: pointer to the msg buffer 3590 * 3591 * This function deletes a cloud filter programmed as TC filter for ADq 3592 **/ 3593 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3594 { 3595 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3596 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3597 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3598 struct i40e_cloud_filter cfilter, *cf = NULL; 3599 struct i40e_pf *pf = vf->pf; 3600 struct i40e_vsi *vsi = NULL; 3601 struct hlist_node *node; 3602 i40e_status aq_ret = 0; 3603 int i, ret; 3604 3605 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3606 aq_ret = I40E_ERR_PARAM; 3607 goto err; 3608 } 3609 3610 if (!vf->adq_enabled) { 3611 dev_info(&pf->pdev->dev, 3612 "VF %d: ADq not enabled, can't apply cloud filter\n", 3613 vf->vf_id); 3614 aq_ret = I40E_ERR_PARAM; 3615 goto err; 3616 } 3617 3618 if (i40e_validate_cloud_filter(vf, vcf)) { 3619 dev_info(&pf->pdev->dev, 3620 "VF %d: Invalid input, can't apply cloud filter\n", 3621 vf->vf_id); 3622 aq_ret = I40E_ERR_PARAM; 3623 goto err; 3624 } 3625 3626 memset(&cfilter, 0, sizeof(cfilter)); 3627 /* parse destination mac address */ 3628 for (i = 0; i < ETH_ALEN; i++) 3629 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3630 3631 /* parse source mac address */ 3632 for (i = 0; i < ETH_ALEN; i++) 3633 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3634 3635 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3636 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3637 cfilter.src_port = mask.src_port & tcf.src_port; 3638 3639 switch (vcf->flow_type) { 3640 case VIRTCHNL_TCP_V4_FLOW: 3641 cfilter.n_proto = ETH_P_IP; 3642 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3643 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3644 ARRAY_SIZE(tcf.dst_ip)); 3645 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3646 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3647 ARRAY_SIZE(tcf.dst_ip)); 3648 break; 3649 case VIRTCHNL_TCP_V6_FLOW: 3650 cfilter.n_proto = ETH_P_IPV6; 3651 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3652 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3653 sizeof(cfilter.ip.v6.dst_ip6)); 3654 if (mask.src_ip[3] & tcf.src_ip[3]) 3655 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3656 sizeof(cfilter.ip.v6.src_ip6)); 3657 break; 3658 default: 3659 /* TC filter can be configured based on different combinations 3660 * and in this case IP is not a part of filter config 3661 */ 3662 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3663 vf->vf_id); 3664 } 3665 3666 /* get the vsi to which the tc belongs to */ 3667 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3668 cfilter.seid = vsi->seid; 3669 cfilter.flags = vcf->field_flags; 3670 3671 /* Deleting TC filter */ 3672 if (tcf.dst_port) 3673 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3674 else 3675 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3676 if (ret) { 3677 dev_err(&pf->pdev->dev, 3678 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3679 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3680 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3681 goto err; 3682 } 3683 3684 hlist_for_each_entry_safe(cf, node, 3685 &vf->cloud_filter_list, cloud_node) { 3686 if (cf->seid != cfilter.seid) 3687 continue; 3688 if (mask.dst_port) 3689 if (cfilter.dst_port != cf->dst_port) 3690 continue; 3691 if (mask.dst_mac[0]) 3692 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3693 continue; 3694 /* for ipv4 data to be valid, only first byte of mask is set */ 3695 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3696 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3697 ARRAY_SIZE(tcf.dst_ip))) 3698 continue; 3699 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3700 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3701 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3702 sizeof(cfilter.ip.v6.src_ip6))) 3703 continue; 3704 if (mask.vlan_id) 3705 if (cfilter.vlan_id != cf->vlan_id) 3706 continue; 3707 3708 hlist_del(&cf->cloud_node); 3709 kfree(cf); 3710 vf->num_cloud_filters--; 3711 } 3712 3713 err: 3714 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3715 aq_ret); 3716 } 3717 3718 /** 3719 * i40e_vc_add_cloud_filter 3720 * @vf: pointer to the VF info 3721 * @msg: pointer to the msg buffer 3722 * 3723 * This function adds a cloud filter programmed as TC filter for ADq 3724 **/ 3725 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3726 { 3727 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3728 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3729 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3730 struct i40e_cloud_filter *cfilter = NULL; 3731 struct i40e_pf *pf = vf->pf; 3732 struct i40e_vsi *vsi = NULL; 3733 i40e_status aq_ret = 0; 3734 int i, ret; 3735 3736 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3737 aq_ret = I40E_ERR_PARAM; 3738 goto err_out; 3739 } 3740 3741 if (!vf->adq_enabled) { 3742 dev_info(&pf->pdev->dev, 3743 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3744 vf->vf_id); 3745 aq_ret = I40E_ERR_PARAM; 3746 goto err_out; 3747 } 3748 3749 if (i40e_validate_cloud_filter(vf, vcf)) { 3750 dev_info(&pf->pdev->dev, 3751 "VF %d: Invalid input/s, can't apply cloud filter\n", 3752 vf->vf_id); 3753 aq_ret = I40E_ERR_PARAM; 3754 goto err_out; 3755 } 3756 3757 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3758 if (!cfilter) 3759 return -ENOMEM; 3760 3761 /* parse destination mac address */ 3762 for (i = 0; i < ETH_ALEN; i++) 3763 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3764 3765 /* parse source mac address */ 3766 for (i = 0; i < ETH_ALEN; i++) 3767 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3768 3769 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3770 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3771 cfilter->src_port = mask.src_port & tcf.src_port; 3772 3773 switch (vcf->flow_type) { 3774 case VIRTCHNL_TCP_V4_FLOW: 3775 cfilter->n_proto = ETH_P_IP; 3776 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3777 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3778 ARRAY_SIZE(tcf.dst_ip)); 3779 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3780 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3781 ARRAY_SIZE(tcf.dst_ip)); 3782 break; 3783 case VIRTCHNL_TCP_V6_FLOW: 3784 cfilter->n_proto = ETH_P_IPV6; 3785 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3786 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3787 sizeof(cfilter->ip.v6.dst_ip6)); 3788 if (mask.src_ip[3] & tcf.src_ip[3]) 3789 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3790 sizeof(cfilter->ip.v6.src_ip6)); 3791 break; 3792 default: 3793 /* TC filter can be configured based on different combinations 3794 * and in this case IP is not a part of filter config 3795 */ 3796 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3797 vf->vf_id); 3798 } 3799 3800 /* get the VSI to which the TC belongs to */ 3801 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3802 cfilter->seid = vsi->seid; 3803 cfilter->flags = vcf->field_flags; 3804 3805 /* Adding cloud filter programmed as TC filter */ 3806 if (tcf.dst_port) 3807 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3808 else 3809 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3810 if (ret) { 3811 dev_err(&pf->pdev->dev, 3812 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3813 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3814 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3815 goto err_free; 3816 } 3817 3818 INIT_HLIST_NODE(&cfilter->cloud_node); 3819 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3820 /* release the pointer passing it to the collection */ 3821 cfilter = NULL; 3822 vf->num_cloud_filters++; 3823 err_free: 3824 kfree(cfilter); 3825 err_out: 3826 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3827 aq_ret); 3828 } 3829 3830 /** 3831 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3832 * @vf: pointer to the VF info 3833 * @msg: pointer to the msg buffer 3834 **/ 3835 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3836 { 3837 struct virtchnl_tc_info *tci = 3838 (struct virtchnl_tc_info *)msg; 3839 struct i40e_pf *pf = vf->pf; 3840 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3841 int i, adq_request_qps = 0; 3842 i40e_status aq_ret = 0; 3843 u64 speed = 0; 3844 3845 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3846 aq_ret = I40E_ERR_PARAM; 3847 goto err; 3848 } 3849 3850 /* ADq cannot be applied if spoof check is ON */ 3851 if (vf->spoofchk) { 3852 dev_err(&pf->pdev->dev, 3853 "Spoof check is ON, turn it OFF to enable ADq\n"); 3854 aq_ret = I40E_ERR_PARAM; 3855 goto err; 3856 } 3857 3858 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3859 dev_err(&pf->pdev->dev, 3860 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3861 vf->vf_id); 3862 aq_ret = I40E_ERR_PARAM; 3863 goto err; 3864 } 3865 3866 /* max number of traffic classes for VF currently capped at 4 */ 3867 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3868 dev_err(&pf->pdev->dev, 3869 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3870 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3871 aq_ret = I40E_ERR_PARAM; 3872 goto err; 3873 } 3874 3875 /* validate queues for each TC */ 3876 for (i = 0; i < tci->num_tc; i++) 3877 if (!tci->list[i].count || 3878 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3879 dev_err(&pf->pdev->dev, 3880 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3881 vf->vf_id, i, tci->list[i].count, 3882 I40E_DEFAULT_QUEUES_PER_VF); 3883 aq_ret = I40E_ERR_PARAM; 3884 goto err; 3885 } 3886 3887 /* need Max VF queues but already have default number of queues */ 3888 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3889 3890 if (pf->queues_left < adq_request_qps) { 3891 dev_err(&pf->pdev->dev, 3892 "No queues left to allocate to VF %d\n", 3893 vf->vf_id); 3894 aq_ret = I40E_ERR_PARAM; 3895 goto err; 3896 } else { 3897 /* we need to allocate max VF queues to enable ADq so as to 3898 * make sure ADq enabled VF always gets back queues when it 3899 * goes through a reset. 3900 */ 3901 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3902 } 3903 3904 /* get link speed in MB to validate rate limit */ 3905 speed = i40e_vc_link_speed2mbps(ls->link_speed); 3906 if (speed == SPEED_UNKNOWN) { 3907 dev_err(&pf->pdev->dev, 3908 "Cannot detect link speed\n"); 3909 aq_ret = I40E_ERR_PARAM; 3910 goto err; 3911 } 3912 3913 /* parse data from the queue channel info */ 3914 vf->num_tc = tci->num_tc; 3915 for (i = 0; i < vf->num_tc; i++) { 3916 if (tci->list[i].max_tx_rate) { 3917 if (tci->list[i].max_tx_rate > speed) { 3918 dev_err(&pf->pdev->dev, 3919 "Invalid max tx rate %llu specified for VF %d.", 3920 tci->list[i].max_tx_rate, 3921 vf->vf_id); 3922 aq_ret = I40E_ERR_PARAM; 3923 goto err; 3924 } else { 3925 vf->ch[i].max_tx_rate = 3926 tci->list[i].max_tx_rate; 3927 } 3928 } 3929 vf->ch[i].num_qps = tci->list[i].count; 3930 } 3931 3932 /* set this flag only after making sure all inputs are sane */ 3933 vf->adq_enabled = true; 3934 3935 /* reset the VF in order to allocate resources */ 3936 i40e_vc_reset_vf(vf, true); 3937 3938 return I40E_SUCCESS; 3939 3940 /* send the response to the VF */ 3941 err: 3942 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3943 aq_ret); 3944 } 3945 3946 /** 3947 * i40e_vc_del_qch_msg 3948 * @vf: pointer to the VF info 3949 * @msg: pointer to the msg buffer 3950 **/ 3951 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3952 { 3953 struct i40e_pf *pf = vf->pf; 3954 i40e_status aq_ret = 0; 3955 3956 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3957 aq_ret = I40E_ERR_PARAM; 3958 goto err; 3959 } 3960 3961 if (vf->adq_enabled) { 3962 i40e_del_all_cloud_filters(vf); 3963 i40e_del_qch(vf); 3964 vf->adq_enabled = false; 3965 vf->num_tc = 0; 3966 dev_info(&pf->pdev->dev, 3967 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 3968 vf->vf_id); 3969 } else { 3970 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 3971 vf->vf_id); 3972 aq_ret = I40E_ERR_PARAM; 3973 } 3974 3975 /* reset the VF in order to allocate resources */ 3976 i40e_vc_reset_vf(vf, true); 3977 3978 return I40E_SUCCESS; 3979 3980 err: 3981 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 3982 aq_ret); 3983 } 3984 3985 /** 3986 * i40e_vc_process_vf_msg 3987 * @pf: pointer to the PF structure 3988 * @vf_id: source VF id 3989 * @v_opcode: operation code 3990 * @v_retval: unused return value code 3991 * @msg: pointer to the msg buffer 3992 * @msglen: msg length 3993 * 3994 * called from the common aeq/arq handler to 3995 * process request from VF 3996 **/ 3997 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 3998 u32 __always_unused v_retval, u8 *msg, u16 msglen) 3999 { 4000 struct i40e_hw *hw = &pf->hw; 4001 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4002 struct i40e_vf *vf; 4003 int ret; 4004 4005 pf->vf_aq_requests++; 4006 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4007 return -EINVAL; 4008 vf = &(pf->vf[local_vf_id]); 4009 4010 /* Check if VF is disabled. */ 4011 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4012 return I40E_ERR_PARAM; 4013 4014 /* perform basic checks on the msg */ 4015 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4016 4017 if (ret) { 4018 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 4019 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4020 local_vf_id, v_opcode, msglen); 4021 switch (ret) { 4022 case VIRTCHNL_STATUS_ERR_PARAM: 4023 return -EPERM; 4024 default: 4025 return -EINVAL; 4026 } 4027 } 4028 4029 switch (v_opcode) { 4030 case VIRTCHNL_OP_VERSION: 4031 ret = i40e_vc_get_version_msg(vf, msg); 4032 break; 4033 case VIRTCHNL_OP_GET_VF_RESOURCES: 4034 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4035 i40e_vc_notify_vf_link_state(vf); 4036 break; 4037 case VIRTCHNL_OP_RESET_VF: 4038 i40e_vc_reset_vf(vf, false); 4039 ret = 0; 4040 break; 4041 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4042 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4043 break; 4044 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4045 ret = i40e_vc_config_queues_msg(vf, msg); 4046 break; 4047 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4048 ret = i40e_vc_config_irq_map_msg(vf, msg); 4049 break; 4050 case VIRTCHNL_OP_ENABLE_QUEUES: 4051 ret = i40e_vc_enable_queues_msg(vf, msg); 4052 i40e_vc_notify_vf_link_state(vf); 4053 break; 4054 case VIRTCHNL_OP_DISABLE_QUEUES: 4055 ret = i40e_vc_disable_queues_msg(vf, msg); 4056 break; 4057 case VIRTCHNL_OP_ADD_ETH_ADDR: 4058 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4059 break; 4060 case VIRTCHNL_OP_DEL_ETH_ADDR: 4061 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4062 break; 4063 case VIRTCHNL_OP_ADD_VLAN: 4064 ret = i40e_vc_add_vlan_msg(vf, msg); 4065 break; 4066 case VIRTCHNL_OP_DEL_VLAN: 4067 ret = i40e_vc_remove_vlan_msg(vf, msg); 4068 break; 4069 case VIRTCHNL_OP_GET_STATS: 4070 ret = i40e_vc_get_stats_msg(vf, msg); 4071 break; 4072 case VIRTCHNL_OP_IWARP: 4073 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 4074 break; 4075 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 4076 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 4077 break; 4078 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 4079 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 4080 break; 4081 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4082 ret = i40e_vc_config_rss_key(vf, msg); 4083 break; 4084 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4085 ret = i40e_vc_config_rss_lut(vf, msg); 4086 break; 4087 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4088 ret = i40e_vc_get_rss_hena(vf, msg); 4089 break; 4090 case VIRTCHNL_OP_SET_RSS_HENA: 4091 ret = i40e_vc_set_rss_hena(vf, msg); 4092 break; 4093 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4094 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4095 break; 4096 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4097 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4098 break; 4099 case VIRTCHNL_OP_REQUEST_QUEUES: 4100 ret = i40e_vc_request_queues_msg(vf, msg); 4101 break; 4102 case VIRTCHNL_OP_ENABLE_CHANNELS: 4103 ret = i40e_vc_add_qch_msg(vf, msg); 4104 break; 4105 case VIRTCHNL_OP_DISABLE_CHANNELS: 4106 ret = i40e_vc_del_qch_msg(vf, msg); 4107 break; 4108 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4109 ret = i40e_vc_add_cloud_filter(vf, msg); 4110 break; 4111 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4112 ret = i40e_vc_del_cloud_filter(vf, msg); 4113 break; 4114 case VIRTCHNL_OP_UNKNOWN: 4115 default: 4116 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4117 v_opcode, local_vf_id); 4118 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4119 I40E_ERR_NOT_IMPLEMENTED); 4120 break; 4121 } 4122 4123 return ret; 4124 } 4125 4126 /** 4127 * i40e_vc_process_vflr_event 4128 * @pf: pointer to the PF structure 4129 * 4130 * called from the vlfr irq handler to 4131 * free up VF resources and state variables 4132 **/ 4133 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4134 { 4135 struct i40e_hw *hw = &pf->hw; 4136 u32 reg, reg_idx, bit_idx; 4137 struct i40e_vf *vf; 4138 int vf_id; 4139 4140 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4141 return 0; 4142 4143 /* Re-enable the VFLR interrupt cause here, before looking for which 4144 * VF got reset. Otherwise, if another VF gets a reset while the 4145 * first one is being processed, that interrupt will be lost, and 4146 * that VF will be stuck in reset forever. 4147 */ 4148 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4149 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4150 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4151 i40e_flush(hw); 4152 4153 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4154 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4155 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4156 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4157 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4158 vf = &pf->vf[vf_id]; 4159 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4160 if (reg & BIT(bit_idx)) 4161 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4162 i40e_reset_vf(vf, true); 4163 } 4164 4165 return 0; 4166 } 4167 4168 /** 4169 * i40e_validate_vf 4170 * @pf: the physical function 4171 * @vf_id: VF identifier 4172 * 4173 * Check that the VF is enabled and the VSI exists. 4174 * 4175 * Returns 0 on success, negative on failure 4176 **/ 4177 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4178 { 4179 struct i40e_vsi *vsi; 4180 struct i40e_vf *vf; 4181 int ret = 0; 4182 4183 if (vf_id >= pf->num_alloc_vfs) { 4184 dev_err(&pf->pdev->dev, 4185 "Invalid VF Identifier %d\n", vf_id); 4186 ret = -EINVAL; 4187 goto err_out; 4188 } 4189 vf = &pf->vf[vf_id]; 4190 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4191 if (!vsi) 4192 ret = -EINVAL; 4193 err_out: 4194 return ret; 4195 } 4196 4197 /** 4198 * i40e_ndo_set_vf_mac 4199 * @netdev: network interface device structure 4200 * @vf_id: VF identifier 4201 * @mac: mac address 4202 * 4203 * program VF mac address 4204 **/ 4205 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4206 { 4207 struct i40e_netdev_priv *np = netdev_priv(netdev); 4208 struct i40e_vsi *vsi = np->vsi; 4209 struct i40e_pf *pf = vsi->back; 4210 struct i40e_mac_filter *f; 4211 struct i40e_vf *vf; 4212 int ret = 0; 4213 struct hlist_node *h; 4214 int bkt; 4215 u8 i; 4216 4217 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4218 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4219 return -EAGAIN; 4220 } 4221 4222 /* validate the request */ 4223 ret = i40e_validate_vf(pf, vf_id); 4224 if (ret) 4225 goto error_param; 4226 4227 vf = &pf->vf[vf_id]; 4228 4229 /* When the VF is resetting wait until it is done. 4230 * It can take up to 200 milliseconds, 4231 * but wait for up to 300 milliseconds to be safe. 4232 * Acquire the VSI pointer only after the VF has been 4233 * properly initialized. 4234 */ 4235 for (i = 0; i < 15; i++) { 4236 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4237 break; 4238 msleep(20); 4239 } 4240 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4241 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4242 vf_id); 4243 ret = -EAGAIN; 4244 goto error_param; 4245 } 4246 vsi = pf->vsi[vf->lan_vsi_idx]; 4247 4248 if (is_multicast_ether_addr(mac)) { 4249 dev_err(&pf->pdev->dev, 4250 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4251 ret = -EINVAL; 4252 goto error_param; 4253 } 4254 4255 /* Lock once because below invoked function add/del_filter requires 4256 * mac_filter_hash_lock to be held 4257 */ 4258 spin_lock_bh(&vsi->mac_filter_hash_lock); 4259 4260 /* delete the temporary mac address */ 4261 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4262 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4263 4264 /* Delete all the filters for this VSI - we're going to kill it 4265 * anyway. 4266 */ 4267 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4268 __i40e_del_filter(vsi, f); 4269 4270 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4271 4272 /* program mac filter */ 4273 if (i40e_sync_vsi_filters(vsi)) { 4274 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4275 ret = -EIO; 4276 goto error_param; 4277 } 4278 ether_addr_copy(vf->default_lan_addr.addr, mac); 4279 4280 if (is_zero_ether_addr(mac)) { 4281 vf->pf_set_mac = false; 4282 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4283 } else { 4284 vf->pf_set_mac = true; 4285 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4286 mac, vf_id); 4287 } 4288 4289 /* Force the VF interface down so it has to bring up with new MAC 4290 * address 4291 */ 4292 i40e_vc_reset_vf(vf, true); 4293 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4294 4295 error_param: 4296 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4297 return ret; 4298 } 4299 4300 /** 4301 * i40e_ndo_set_vf_port_vlan 4302 * @netdev: network interface device structure 4303 * @vf_id: VF identifier 4304 * @vlan_id: mac address 4305 * @qos: priority setting 4306 * @vlan_proto: vlan protocol 4307 * 4308 * program VF vlan id and/or qos 4309 **/ 4310 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4311 u16 vlan_id, u8 qos, __be16 vlan_proto) 4312 { 4313 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4314 struct i40e_netdev_priv *np = netdev_priv(netdev); 4315 bool allmulti = false, alluni = false; 4316 struct i40e_pf *pf = np->vsi->back; 4317 struct i40e_vsi *vsi; 4318 struct i40e_vf *vf; 4319 int ret = 0; 4320 4321 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4322 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4323 return -EAGAIN; 4324 } 4325 4326 /* validate the request */ 4327 ret = i40e_validate_vf(pf, vf_id); 4328 if (ret) 4329 goto error_pvid; 4330 4331 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4332 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4333 ret = -EINVAL; 4334 goto error_pvid; 4335 } 4336 4337 if (vlan_proto != htons(ETH_P_8021Q)) { 4338 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4339 ret = -EPROTONOSUPPORT; 4340 goto error_pvid; 4341 } 4342 4343 vf = &pf->vf[vf_id]; 4344 vsi = pf->vsi[vf->lan_vsi_idx]; 4345 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4346 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4347 vf_id); 4348 ret = -EAGAIN; 4349 goto error_pvid; 4350 } 4351 4352 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4353 /* duplicate request, so just return success */ 4354 goto error_pvid; 4355 4356 i40e_vlan_stripping_enable(vsi); 4357 i40e_vc_reset_vf(vf, true); 4358 /* During reset the VF got a new VSI, so refresh a pointer. */ 4359 vsi = pf->vsi[vf->lan_vsi_idx]; 4360 /* Locked once because multiple functions below iterate list */ 4361 spin_lock_bh(&vsi->mac_filter_hash_lock); 4362 4363 /* Check for condition where there was already a port VLAN ID 4364 * filter set and now it is being deleted by setting it to zero. 4365 * Additionally check for the condition where there was a port 4366 * VLAN but now there is a new and different port VLAN being set. 4367 * Before deleting all the old VLAN filters we must add new ones 4368 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4369 * MAC addresses deleted. 4370 */ 4371 if ((!(vlan_id || qos) || 4372 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4373 vsi->info.pvid) { 4374 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4375 if (ret) { 4376 dev_info(&vsi->back->pdev->dev, 4377 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4378 vsi->back->hw.aq.asq_last_status); 4379 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4380 goto error_pvid; 4381 } 4382 } 4383 4384 if (vsi->info.pvid) { 4385 /* remove all filters on the old VLAN */ 4386 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4387 VLAN_VID_MASK)); 4388 } 4389 4390 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4391 4392 /* disable promisc modes in case they were enabled */ 4393 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4394 allmulti, alluni); 4395 if (ret) { 4396 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4397 goto error_pvid; 4398 } 4399 4400 if (vlan_id || qos) 4401 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4402 else 4403 i40e_vsi_remove_pvid(vsi); 4404 spin_lock_bh(&vsi->mac_filter_hash_lock); 4405 4406 if (vlan_id) { 4407 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4408 vlan_id, qos, vf_id); 4409 4410 /* add new VLAN filter for each MAC */ 4411 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4412 if (ret) { 4413 dev_info(&vsi->back->pdev->dev, 4414 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4415 vsi->back->hw.aq.asq_last_status); 4416 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4417 goto error_pvid; 4418 } 4419 4420 /* remove the previously added non-VLAN MAC filters */ 4421 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4422 } 4423 4424 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4425 4426 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4427 alluni = true; 4428 4429 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4430 allmulti = true; 4431 4432 /* Schedule the worker thread to take care of applying changes */ 4433 i40e_service_event_schedule(vsi->back); 4434 4435 if (ret) { 4436 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4437 goto error_pvid; 4438 } 4439 4440 /* The Port VLAN needs to be saved across resets the same as the 4441 * default LAN MAC address. 4442 */ 4443 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4444 4445 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4446 if (ret) { 4447 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4448 goto error_pvid; 4449 } 4450 4451 ret = 0; 4452 4453 error_pvid: 4454 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4455 return ret; 4456 } 4457 4458 /** 4459 * i40e_ndo_set_vf_bw 4460 * @netdev: network interface device structure 4461 * @vf_id: VF identifier 4462 * @min_tx_rate: Minimum Tx rate 4463 * @max_tx_rate: Maximum Tx rate 4464 * 4465 * configure VF Tx rate 4466 **/ 4467 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4468 int max_tx_rate) 4469 { 4470 struct i40e_netdev_priv *np = netdev_priv(netdev); 4471 struct i40e_pf *pf = np->vsi->back; 4472 struct i40e_vsi *vsi; 4473 struct i40e_vf *vf; 4474 int ret = 0; 4475 4476 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4477 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4478 return -EAGAIN; 4479 } 4480 4481 /* validate the request */ 4482 ret = i40e_validate_vf(pf, vf_id); 4483 if (ret) 4484 goto error; 4485 4486 if (min_tx_rate) { 4487 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4488 min_tx_rate, vf_id); 4489 ret = -EINVAL; 4490 goto error; 4491 } 4492 4493 vf = &pf->vf[vf_id]; 4494 vsi = pf->vsi[vf->lan_vsi_idx]; 4495 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4496 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4497 vf_id); 4498 ret = -EAGAIN; 4499 goto error; 4500 } 4501 4502 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4503 if (ret) 4504 goto error; 4505 4506 vf->tx_rate = max_tx_rate; 4507 error: 4508 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4509 return ret; 4510 } 4511 4512 /** 4513 * i40e_ndo_get_vf_config 4514 * @netdev: network interface device structure 4515 * @vf_id: VF identifier 4516 * @ivi: VF configuration structure 4517 * 4518 * return VF configuration 4519 **/ 4520 int i40e_ndo_get_vf_config(struct net_device *netdev, 4521 int vf_id, struct ifla_vf_info *ivi) 4522 { 4523 struct i40e_netdev_priv *np = netdev_priv(netdev); 4524 struct i40e_vsi *vsi = np->vsi; 4525 struct i40e_pf *pf = vsi->back; 4526 struct i40e_vf *vf; 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 ret = i40e_validate_vf(pf, vf_id); 4536 if (ret) 4537 goto error_param; 4538 4539 vf = &pf->vf[vf_id]; 4540 /* first vsi is always the LAN vsi */ 4541 vsi = pf->vsi[vf->lan_vsi_idx]; 4542 if (!vsi) { 4543 ret = -ENOENT; 4544 goto error_param; 4545 } 4546 4547 ivi->vf = vf_id; 4548 4549 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4550 4551 ivi->max_tx_rate = vf->tx_rate; 4552 ivi->min_tx_rate = 0; 4553 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4554 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4555 I40E_VLAN_PRIORITY_SHIFT; 4556 if (vf->link_forced == false) 4557 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4558 else if (vf->link_up == true) 4559 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4560 else 4561 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4562 ivi->spoofchk = vf->spoofchk; 4563 ivi->trusted = vf->trusted; 4564 ret = 0; 4565 4566 error_param: 4567 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4568 return ret; 4569 } 4570 4571 /** 4572 * i40e_ndo_set_vf_link_state 4573 * @netdev: network interface device structure 4574 * @vf_id: VF identifier 4575 * @link: required link state 4576 * 4577 * Set the link state of a specified VF, regardless of physical link state 4578 **/ 4579 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4580 { 4581 struct i40e_netdev_priv *np = netdev_priv(netdev); 4582 struct i40e_pf *pf = np->vsi->back; 4583 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4584 struct virtchnl_pf_event pfe; 4585 struct i40e_hw *hw = &pf->hw; 4586 struct i40e_vf *vf; 4587 int abs_vf_id; 4588 int ret = 0; 4589 4590 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4591 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4592 return -EAGAIN; 4593 } 4594 4595 /* validate the request */ 4596 if (vf_id >= pf->num_alloc_vfs) { 4597 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4598 ret = -EINVAL; 4599 goto error_out; 4600 } 4601 4602 vf = &pf->vf[vf_id]; 4603 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4604 4605 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4606 pfe.severity = PF_EVENT_SEVERITY_INFO; 4607 4608 switch (link) { 4609 case IFLA_VF_LINK_STATE_AUTO: 4610 vf->link_forced = false; 4611 i40e_set_vf_link_state(vf, &pfe, ls); 4612 break; 4613 case IFLA_VF_LINK_STATE_ENABLE: 4614 vf->link_forced = true; 4615 vf->link_up = true; 4616 i40e_set_vf_link_state(vf, &pfe, ls); 4617 break; 4618 case IFLA_VF_LINK_STATE_DISABLE: 4619 vf->link_forced = true; 4620 vf->link_up = false; 4621 i40e_set_vf_link_state(vf, &pfe, ls); 4622 break; 4623 default: 4624 ret = -EINVAL; 4625 goto error_out; 4626 } 4627 /* Notify the VF of its new link state */ 4628 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4629 0, (u8 *)&pfe, sizeof(pfe), NULL); 4630 4631 error_out: 4632 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4633 return ret; 4634 } 4635 4636 /** 4637 * i40e_ndo_set_vf_spoofchk 4638 * @netdev: network interface device structure 4639 * @vf_id: VF identifier 4640 * @enable: flag to enable or disable feature 4641 * 4642 * Enable or disable VF spoof checking 4643 **/ 4644 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4645 { 4646 struct i40e_netdev_priv *np = netdev_priv(netdev); 4647 struct i40e_vsi *vsi = np->vsi; 4648 struct i40e_pf *pf = vsi->back; 4649 struct i40e_vsi_context ctxt; 4650 struct i40e_hw *hw = &pf->hw; 4651 struct i40e_vf *vf; 4652 int ret = 0; 4653 4654 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4655 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4656 return -EAGAIN; 4657 } 4658 4659 /* validate the request */ 4660 if (vf_id >= pf->num_alloc_vfs) { 4661 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4662 ret = -EINVAL; 4663 goto out; 4664 } 4665 4666 vf = &(pf->vf[vf_id]); 4667 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4668 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4669 vf_id); 4670 ret = -EAGAIN; 4671 goto out; 4672 } 4673 4674 if (enable == vf->spoofchk) 4675 goto out; 4676 4677 vf->spoofchk = enable; 4678 memset(&ctxt, 0, sizeof(ctxt)); 4679 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4680 ctxt.pf_num = pf->hw.pf_id; 4681 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4682 if (enable) 4683 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4684 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4685 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4686 if (ret) { 4687 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4688 ret); 4689 ret = -EIO; 4690 } 4691 out: 4692 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4693 return ret; 4694 } 4695 4696 /** 4697 * i40e_ndo_set_vf_trust 4698 * @netdev: network interface device structure of the pf 4699 * @vf_id: VF identifier 4700 * @setting: trust setting 4701 * 4702 * Enable or disable VF trust setting 4703 **/ 4704 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4705 { 4706 struct i40e_netdev_priv *np = netdev_priv(netdev); 4707 struct i40e_pf *pf = np->vsi->back; 4708 struct i40e_vf *vf; 4709 int ret = 0; 4710 4711 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4712 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4713 return -EAGAIN; 4714 } 4715 4716 /* validate the request */ 4717 if (vf_id >= pf->num_alloc_vfs) { 4718 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4719 ret = -EINVAL; 4720 goto out; 4721 } 4722 4723 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4724 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4725 ret = -EINVAL; 4726 goto out; 4727 } 4728 4729 vf = &pf->vf[vf_id]; 4730 4731 if (setting == vf->trusted) 4732 goto out; 4733 4734 vf->trusted = setting; 4735 4736 /* request PF to sync mac/vlan filters for the VF */ 4737 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4738 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4739 4740 i40e_vc_reset_vf(vf, true); 4741 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4742 vf_id, setting ? "" : "un"); 4743 4744 if (vf->adq_enabled) { 4745 if (!vf->trusted) { 4746 dev_info(&pf->pdev->dev, 4747 "VF %u no longer Trusted, deleting all cloud filters\n", 4748 vf_id); 4749 i40e_del_all_cloud_filters(vf); 4750 } 4751 } 4752 4753 out: 4754 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4755 return ret; 4756 } 4757 4758 /** 4759 * i40e_get_vf_stats - populate some stats for the VF 4760 * @netdev: the netdev of the PF 4761 * @vf_id: the host OS identifier (0-127) 4762 * @vf_stats: pointer to the OS memory to be initialized 4763 */ 4764 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4765 struct ifla_vf_stats *vf_stats) 4766 { 4767 struct i40e_netdev_priv *np = netdev_priv(netdev); 4768 struct i40e_pf *pf = np->vsi->back; 4769 struct i40e_eth_stats *stats; 4770 struct i40e_vsi *vsi; 4771 struct i40e_vf *vf; 4772 4773 /* validate the request */ 4774 if (i40e_validate_vf(pf, vf_id)) 4775 return -EINVAL; 4776 4777 vf = &pf->vf[vf_id]; 4778 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4779 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4780 return -EBUSY; 4781 } 4782 4783 vsi = pf->vsi[vf->lan_vsi_idx]; 4784 if (!vsi) 4785 return -EINVAL; 4786 4787 i40e_update_eth_stats(vsi); 4788 stats = &vsi->eth_stats; 4789 4790 memset(vf_stats, 0, sizeof(*vf_stats)); 4791 4792 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4793 stats->rx_multicast; 4794 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4795 stats->tx_multicast; 4796 vf_stats->rx_bytes = stats->rx_bytes; 4797 vf_stats->tx_bytes = stats->tx_bytes; 4798 vf_stats->broadcast = stats->rx_broadcast; 4799 vf_stats->multicast = stats->rx_multicast; 4800 vf_stats->rx_dropped = stats->rx_discards; 4801 vf_stats->tx_dropped = stats->tx_discards; 4802 4803 return 0; 4804 } 4805