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_ex 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 * @is_quiet: true for not printing unsuccessful return values, false otherwise 1927 * 1928 * send msg to VF 1929 **/ 1930 static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode, 1931 u32 v_retval, u8 *msg, u16 msglen, 1932 bool is_quiet) 1933 { 1934 struct i40e_pf *pf; 1935 struct i40e_hw *hw; 1936 int abs_vf_id; 1937 i40e_status aq_ret; 1938 1939 /* validate the request */ 1940 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1941 return -EINVAL; 1942 1943 pf = vf->pf; 1944 hw = &pf->hw; 1945 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1946 1947 /* single place to detect unsuccessful return values */ 1948 if (v_retval && !is_quiet) { 1949 vf->num_invalid_msgs++; 1950 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1951 vf->vf_id, v_opcode, v_retval); 1952 if (vf->num_invalid_msgs > 1953 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1954 dev_err(&pf->pdev->dev, 1955 "Number of invalid messages exceeded for VF %d\n", 1956 vf->vf_id); 1957 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1958 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1959 } 1960 } else { 1961 vf->num_valid_msgs++; 1962 /* reset the invalid counter, if a valid message is received. */ 1963 vf->num_invalid_msgs = 0; 1964 } 1965 1966 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1967 msg, msglen, NULL); 1968 if (aq_ret) { 1969 dev_info(&pf->pdev->dev, 1970 "Unable to send the message to VF %d aq_err %d\n", 1971 vf->vf_id, pf->hw.aq.asq_last_status); 1972 return -EIO; 1973 } 1974 1975 return 0; 1976 } 1977 1978 /** 1979 * i40e_vc_send_msg_to_vf 1980 * @vf: pointer to the VF info 1981 * @v_opcode: virtual channel opcode 1982 * @v_retval: virtual channel return value 1983 * @msg: pointer to the msg buffer 1984 * @msglen: msg length 1985 * 1986 * send msg to VF 1987 **/ 1988 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1989 u32 v_retval, u8 *msg, u16 msglen) 1990 { 1991 return i40e_vc_send_msg_to_vf_ex(vf, v_opcode, v_retval, 1992 msg, msglen, false); 1993 } 1994 1995 /** 1996 * i40e_vc_send_resp_to_vf 1997 * @vf: pointer to the VF info 1998 * @opcode: operation code 1999 * @retval: return value 2000 * 2001 * send resp msg to VF 2002 **/ 2003 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 2004 enum virtchnl_ops opcode, 2005 i40e_status retval) 2006 { 2007 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 2008 } 2009 2010 /** 2011 * i40e_sync_vf_state 2012 * @vf: pointer to the VF info 2013 * @state: VF state 2014 * 2015 * Called from a VF message to synchronize the service with a potential 2016 * VF reset state 2017 **/ 2018 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2019 { 2020 int i; 2021 2022 /* When handling some messages, it needs VF state to be set. 2023 * It is possible that this flag is cleared during VF reset, 2024 * so there is a need to wait until the end of the reset to 2025 * handle the request message correctly. 2026 */ 2027 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2028 if (test_bit(state, &vf->vf_states)) 2029 return true; 2030 usleep_range(10000, 20000); 2031 } 2032 2033 return test_bit(state, &vf->vf_states); 2034 } 2035 2036 /** 2037 * i40e_vc_get_version_msg 2038 * @vf: pointer to the VF info 2039 * @msg: pointer to the msg buffer 2040 * 2041 * called from the VF to request the API version used by the PF 2042 **/ 2043 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2044 { 2045 struct virtchnl_version_info info = { 2046 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2047 }; 2048 2049 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2050 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2051 if (VF_IS_V10(&vf->vf_ver)) 2052 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2053 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2054 I40E_SUCCESS, (u8 *)&info, 2055 sizeof(struct virtchnl_version_info)); 2056 } 2057 2058 /** 2059 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2060 * @vf: pointer to VF structure 2061 **/ 2062 static void i40e_del_qch(struct i40e_vf *vf) 2063 { 2064 struct i40e_pf *pf = vf->pf; 2065 int i; 2066 2067 /* first element in the array belongs to primary VF VSI and we shouldn't 2068 * delete it. We should however delete the rest of the VSIs created 2069 */ 2070 for (i = 1; i < vf->num_tc; i++) { 2071 if (vf->ch[i].vsi_idx) { 2072 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2073 vf->ch[i].vsi_idx = 0; 2074 vf->ch[i].vsi_id = 0; 2075 } 2076 } 2077 } 2078 2079 /** 2080 * i40e_vc_get_vf_resources_msg 2081 * @vf: pointer to the VF info 2082 * @msg: pointer to the msg buffer 2083 * 2084 * called from the VF to request its resources 2085 **/ 2086 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2087 { 2088 struct virtchnl_vf_resource *vfres = NULL; 2089 struct i40e_pf *pf = vf->pf; 2090 i40e_status aq_ret = 0; 2091 struct i40e_vsi *vsi; 2092 int num_vsis = 1; 2093 size_t len = 0; 2094 int ret; 2095 2096 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2097 aq_ret = I40E_ERR_PARAM; 2098 goto err; 2099 } 2100 2101 len = struct_size(vfres, vsi_res, num_vsis); 2102 vfres = kzalloc(len, GFP_KERNEL); 2103 if (!vfres) { 2104 aq_ret = I40E_ERR_NO_MEMORY; 2105 len = 0; 2106 goto err; 2107 } 2108 if (VF_IS_V11(&vf->vf_ver)) 2109 vf->driver_caps = *(u32 *)msg; 2110 else 2111 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2112 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2113 VIRTCHNL_VF_OFFLOAD_VLAN; 2114 2115 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2116 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2117 vsi = pf->vsi[vf->lan_vsi_idx]; 2118 if (!vsi->info.pvid) 2119 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2120 2121 if (i40e_vf_client_capable(pf, vf->vf_id) && 2122 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 2123 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 2124 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2125 } else { 2126 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2127 } 2128 2129 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2130 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2131 } else { 2132 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2133 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2134 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2135 else 2136 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2137 } 2138 2139 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2140 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2141 vfres->vf_cap_flags |= 2142 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2143 } 2144 2145 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2146 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2147 2148 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2149 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2150 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2151 2152 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2153 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2154 dev_err(&pf->pdev->dev, 2155 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2156 vf->vf_id); 2157 aq_ret = I40E_ERR_PARAM; 2158 goto err; 2159 } 2160 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2161 } 2162 2163 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2164 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2165 vfres->vf_cap_flags |= 2166 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2167 } 2168 2169 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2170 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2171 2172 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2173 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2174 2175 vfres->num_vsis = num_vsis; 2176 vfres->num_queue_pairs = vf->num_queue_pairs; 2177 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2178 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2179 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2180 2181 if (vf->lan_vsi_idx) { 2182 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2183 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2184 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2185 /* VFs only use TC 0 */ 2186 vfres->vsi_res[0].qset_handle 2187 = le16_to_cpu(vsi->info.qs_handle[0]); 2188 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2189 vf->default_lan_addr.addr); 2190 } 2191 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2192 2193 err: 2194 /* send the response back to the VF */ 2195 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2196 aq_ret, (u8 *)vfres, len); 2197 2198 kfree(vfres); 2199 return ret; 2200 } 2201 2202 /** 2203 * i40e_vc_config_promiscuous_mode_msg 2204 * @vf: pointer to the VF info 2205 * @msg: pointer to the msg buffer 2206 * 2207 * called from the VF to configure the promiscuous mode of 2208 * VF vsis 2209 **/ 2210 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2211 { 2212 struct virtchnl_promisc_info *info = 2213 (struct virtchnl_promisc_info *)msg; 2214 struct i40e_pf *pf = vf->pf; 2215 i40e_status aq_ret = 0; 2216 bool allmulti = false; 2217 bool alluni = false; 2218 2219 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2220 aq_ret = I40E_ERR_PARAM; 2221 goto err_out; 2222 } 2223 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2224 dev_err(&pf->pdev->dev, 2225 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2226 vf->vf_id); 2227 2228 /* Lie to the VF on purpose, because this is an error we can 2229 * ignore. Unprivileged VF is not a virtual channel error. 2230 */ 2231 aq_ret = 0; 2232 goto err_out; 2233 } 2234 2235 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2236 aq_ret = I40E_ERR_PARAM; 2237 goto err_out; 2238 } 2239 2240 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2241 aq_ret = I40E_ERR_PARAM; 2242 goto err_out; 2243 } 2244 2245 /* Multicast promiscuous handling*/ 2246 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2247 allmulti = true; 2248 2249 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2250 alluni = true; 2251 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2252 alluni); 2253 if (aq_ret) 2254 goto err_out; 2255 2256 if (allmulti) { 2257 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2258 &vf->vf_states)) 2259 dev_info(&pf->pdev->dev, 2260 "VF %d successfully set multicast promiscuous mode\n", 2261 vf->vf_id); 2262 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2263 &vf->vf_states)) 2264 dev_info(&pf->pdev->dev, 2265 "VF %d successfully unset multicast promiscuous mode\n", 2266 vf->vf_id); 2267 2268 if (alluni) { 2269 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2270 &vf->vf_states)) 2271 dev_info(&pf->pdev->dev, 2272 "VF %d successfully set unicast promiscuous mode\n", 2273 vf->vf_id); 2274 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2275 &vf->vf_states)) 2276 dev_info(&pf->pdev->dev, 2277 "VF %d successfully unset unicast promiscuous mode\n", 2278 vf->vf_id); 2279 2280 err_out: 2281 /* send the response to the VF */ 2282 return i40e_vc_send_resp_to_vf(vf, 2283 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2284 aq_ret); 2285 } 2286 2287 /** 2288 * i40e_vc_config_queues_msg 2289 * @vf: pointer to the VF info 2290 * @msg: pointer to the msg buffer 2291 * 2292 * called from the VF to configure the rx/tx 2293 * queues 2294 **/ 2295 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2296 { 2297 struct virtchnl_vsi_queue_config_info *qci = 2298 (struct virtchnl_vsi_queue_config_info *)msg; 2299 struct virtchnl_queue_pair_info *qpi; 2300 u16 vsi_id, vsi_queue_id = 0; 2301 struct i40e_pf *pf = vf->pf; 2302 i40e_status aq_ret = 0; 2303 int i, j = 0, idx = 0; 2304 struct i40e_vsi *vsi; 2305 u16 num_qps_all = 0; 2306 2307 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2308 aq_ret = I40E_ERR_PARAM; 2309 goto error_param; 2310 } 2311 2312 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2313 aq_ret = I40E_ERR_PARAM; 2314 goto error_param; 2315 } 2316 2317 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2318 aq_ret = I40E_ERR_PARAM; 2319 goto error_param; 2320 } 2321 2322 if (vf->adq_enabled) { 2323 for (i = 0; i < I40E_MAX_VF_VSI; i++) 2324 num_qps_all += vf->ch[i].num_qps; 2325 if (num_qps_all != qci->num_queue_pairs) { 2326 aq_ret = I40E_ERR_PARAM; 2327 goto error_param; 2328 } 2329 } 2330 2331 vsi_id = qci->vsi_id; 2332 2333 for (i = 0; i < qci->num_queue_pairs; i++) { 2334 qpi = &qci->qpair[i]; 2335 2336 if (!vf->adq_enabled) { 2337 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2338 qpi->txq.queue_id)) { 2339 aq_ret = I40E_ERR_PARAM; 2340 goto error_param; 2341 } 2342 2343 vsi_queue_id = qpi->txq.queue_id; 2344 2345 if (qpi->txq.vsi_id != qci->vsi_id || 2346 qpi->rxq.vsi_id != qci->vsi_id || 2347 qpi->rxq.queue_id != vsi_queue_id) { 2348 aq_ret = I40E_ERR_PARAM; 2349 goto error_param; 2350 } 2351 } 2352 2353 if (vf->adq_enabled) { 2354 if (idx >= ARRAY_SIZE(vf->ch)) { 2355 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2356 goto error_param; 2357 } 2358 vsi_id = vf->ch[idx].vsi_id; 2359 } 2360 2361 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2362 &qpi->rxq) || 2363 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2364 &qpi->txq)) { 2365 aq_ret = I40E_ERR_PARAM; 2366 goto error_param; 2367 } 2368 2369 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2370 * VF does not know about these additional VSIs and all 2371 * it cares is about its own queues. PF configures these queues 2372 * to its appropriate VSIs based on TC mapping 2373 */ 2374 if (vf->adq_enabled) { 2375 if (idx >= ARRAY_SIZE(vf->ch)) { 2376 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2377 goto error_param; 2378 } 2379 if (j == (vf->ch[idx].num_qps - 1)) { 2380 idx++; 2381 j = 0; /* resetting the queue count */ 2382 vsi_queue_id = 0; 2383 } else { 2384 j++; 2385 vsi_queue_id++; 2386 } 2387 } 2388 } 2389 /* set vsi num_queue_pairs in use to num configured by VF */ 2390 if (!vf->adq_enabled) { 2391 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2392 qci->num_queue_pairs; 2393 } else { 2394 for (i = 0; i < vf->num_tc; i++) { 2395 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2396 vsi->num_queue_pairs = vf->ch[i].num_qps; 2397 2398 if (i40e_update_adq_vsi_queues(vsi, i)) { 2399 aq_ret = I40E_ERR_CONFIG; 2400 goto error_param; 2401 } 2402 } 2403 } 2404 2405 error_param: 2406 /* send the response to the VF */ 2407 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2408 aq_ret); 2409 } 2410 2411 /** 2412 * i40e_validate_queue_map - check queue map is valid 2413 * @vf: the VF structure pointer 2414 * @vsi_id: vsi id 2415 * @queuemap: Tx or Rx queue map 2416 * 2417 * check if Tx or Rx queue map is valid 2418 **/ 2419 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2420 unsigned long queuemap) 2421 { 2422 u16 vsi_queue_id, queue_id; 2423 2424 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2425 if (vf->adq_enabled) { 2426 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2427 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2428 } else { 2429 queue_id = vsi_queue_id; 2430 } 2431 2432 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2433 return -EINVAL; 2434 } 2435 2436 return 0; 2437 } 2438 2439 /** 2440 * i40e_vc_config_irq_map_msg 2441 * @vf: pointer to the VF info 2442 * @msg: pointer to the msg buffer 2443 * 2444 * called from the VF to configure the irq to 2445 * queue map 2446 **/ 2447 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2448 { 2449 struct virtchnl_irq_map_info *irqmap_info = 2450 (struct virtchnl_irq_map_info *)msg; 2451 struct virtchnl_vector_map *map; 2452 u16 vsi_id; 2453 i40e_status aq_ret = 0; 2454 int i; 2455 2456 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2457 aq_ret = I40E_ERR_PARAM; 2458 goto error_param; 2459 } 2460 2461 if (irqmap_info->num_vectors > 2462 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2463 aq_ret = I40E_ERR_PARAM; 2464 goto error_param; 2465 } 2466 2467 for (i = 0; i < irqmap_info->num_vectors; i++) { 2468 map = &irqmap_info->vecmap[i]; 2469 /* validate msg params */ 2470 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2471 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2472 aq_ret = I40E_ERR_PARAM; 2473 goto error_param; 2474 } 2475 vsi_id = map->vsi_id; 2476 2477 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2478 aq_ret = I40E_ERR_PARAM; 2479 goto error_param; 2480 } 2481 2482 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2483 aq_ret = I40E_ERR_PARAM; 2484 goto error_param; 2485 } 2486 2487 i40e_config_irq_link_list(vf, vsi_id, map); 2488 } 2489 error_param: 2490 /* send the response to the VF */ 2491 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2492 aq_ret); 2493 } 2494 2495 /** 2496 * i40e_ctrl_vf_tx_rings 2497 * @vsi: the SRIOV VSI being configured 2498 * @q_map: bit map of the queues to be enabled 2499 * @enable: start or stop the queue 2500 **/ 2501 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2502 bool enable) 2503 { 2504 struct i40e_pf *pf = vsi->back; 2505 int ret = 0; 2506 u16 q_id; 2507 2508 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2509 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2510 vsi->base_queue + q_id, 2511 false /*is xdp*/, enable); 2512 if (ret) 2513 break; 2514 } 2515 return ret; 2516 } 2517 2518 /** 2519 * i40e_ctrl_vf_rx_rings 2520 * @vsi: the SRIOV VSI being configured 2521 * @q_map: bit map of the queues to be enabled 2522 * @enable: start or stop the queue 2523 **/ 2524 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2525 bool enable) 2526 { 2527 struct i40e_pf *pf = vsi->back; 2528 int ret = 0; 2529 u16 q_id; 2530 2531 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2532 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2533 enable); 2534 if (ret) 2535 break; 2536 } 2537 return ret; 2538 } 2539 2540 /** 2541 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2542 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2543 * 2544 * Returns true if validation was successful, else false. 2545 */ 2546 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2547 { 2548 if ((!vqs->rx_queues && !vqs->tx_queues) || 2549 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2550 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2551 return false; 2552 2553 return true; 2554 } 2555 2556 /** 2557 * i40e_vc_enable_queues_msg 2558 * @vf: pointer to the VF info 2559 * @msg: pointer to the msg buffer 2560 * 2561 * called from the VF to enable all or specific queue(s) 2562 **/ 2563 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2564 { 2565 struct virtchnl_queue_select *vqs = 2566 (struct virtchnl_queue_select *)msg; 2567 struct i40e_pf *pf = vf->pf; 2568 i40e_status aq_ret = 0; 2569 int i; 2570 2571 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2572 aq_ret = I40E_ERR_PARAM; 2573 goto error_param; 2574 } 2575 2576 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2577 aq_ret = I40E_ERR_PARAM; 2578 goto error_param; 2579 } 2580 2581 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2582 aq_ret = I40E_ERR_PARAM; 2583 goto error_param; 2584 } 2585 2586 /* Use the queue bit map sent by the VF */ 2587 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2588 true)) { 2589 aq_ret = I40E_ERR_TIMEOUT; 2590 goto error_param; 2591 } 2592 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2593 true)) { 2594 aq_ret = I40E_ERR_TIMEOUT; 2595 goto error_param; 2596 } 2597 2598 /* need to start the rings for additional ADq VSI's as well */ 2599 if (vf->adq_enabled) { 2600 /* zero belongs to LAN VSI */ 2601 for (i = 1; i < vf->num_tc; i++) { 2602 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2603 aq_ret = I40E_ERR_TIMEOUT; 2604 } 2605 } 2606 2607 error_param: 2608 /* send the response to the VF */ 2609 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2610 aq_ret); 2611 } 2612 2613 /** 2614 * i40e_vc_disable_queues_msg 2615 * @vf: pointer to the VF info 2616 * @msg: pointer to the msg buffer 2617 * 2618 * called from the VF to disable all or specific 2619 * queue(s) 2620 **/ 2621 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2622 { 2623 struct virtchnl_queue_select *vqs = 2624 (struct virtchnl_queue_select *)msg; 2625 struct i40e_pf *pf = vf->pf; 2626 i40e_status aq_ret = 0; 2627 2628 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2629 aq_ret = I40E_ERR_PARAM; 2630 goto error_param; 2631 } 2632 2633 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2634 aq_ret = I40E_ERR_PARAM; 2635 goto error_param; 2636 } 2637 2638 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2639 aq_ret = I40E_ERR_PARAM; 2640 goto error_param; 2641 } 2642 2643 /* Use the queue bit map sent by the VF */ 2644 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2645 false)) { 2646 aq_ret = I40E_ERR_TIMEOUT; 2647 goto error_param; 2648 } 2649 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2650 false)) { 2651 aq_ret = I40E_ERR_TIMEOUT; 2652 goto error_param; 2653 } 2654 error_param: 2655 /* send the response to the VF */ 2656 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2657 aq_ret); 2658 } 2659 2660 /** 2661 * i40e_check_enough_queue - find big enough queue number 2662 * @vf: pointer to the VF info 2663 * @needed: the number of items needed 2664 * 2665 * Returns the base item index of the queue, or negative for error 2666 **/ 2667 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2668 { 2669 unsigned int i, cur_queues, more, pool_size; 2670 struct i40e_lump_tracking *pile; 2671 struct i40e_pf *pf = vf->pf; 2672 struct i40e_vsi *vsi; 2673 2674 vsi = pf->vsi[vf->lan_vsi_idx]; 2675 cur_queues = vsi->alloc_queue_pairs; 2676 2677 /* if current allocated queues are enough for need */ 2678 if (cur_queues >= needed) 2679 return vsi->base_queue; 2680 2681 pile = pf->qp_pile; 2682 if (cur_queues > 0) { 2683 /* if the allocated queues are not zero 2684 * just check if there are enough queues for more 2685 * behind the allocated queues. 2686 */ 2687 more = needed - cur_queues; 2688 for (i = vsi->base_queue + cur_queues; 2689 i < pile->num_entries; i++) { 2690 if (pile->list[i] & I40E_PILE_VALID_BIT) 2691 break; 2692 2693 if (more-- == 1) 2694 /* there is enough */ 2695 return vsi->base_queue; 2696 } 2697 } 2698 2699 pool_size = 0; 2700 for (i = 0; i < pile->num_entries; i++) { 2701 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2702 pool_size = 0; 2703 continue; 2704 } 2705 if (needed <= ++pool_size) 2706 /* there is enough */ 2707 return i; 2708 } 2709 2710 return -ENOMEM; 2711 } 2712 2713 /** 2714 * i40e_vc_request_queues_msg 2715 * @vf: pointer to the VF info 2716 * @msg: pointer to the msg buffer 2717 * 2718 * VFs get a default number of queues but can use this message to request a 2719 * different number. If the request is successful, PF will reset the VF and 2720 * return 0. If unsuccessful, PF will send message informing VF of number of 2721 * available queues and return result of sending VF a message. 2722 **/ 2723 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2724 { 2725 struct virtchnl_vf_res_request *vfres = 2726 (struct virtchnl_vf_res_request *)msg; 2727 u16 req_pairs = vfres->num_queue_pairs; 2728 u8 cur_pairs = vf->num_queue_pairs; 2729 struct i40e_pf *pf = vf->pf; 2730 2731 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2732 return -EINVAL; 2733 2734 if (req_pairs > I40E_MAX_VF_QUEUES) { 2735 dev_err(&pf->pdev->dev, 2736 "VF %d tried to request more than %d queues.\n", 2737 vf->vf_id, 2738 I40E_MAX_VF_QUEUES); 2739 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2740 } else if (req_pairs - cur_pairs > pf->queues_left) { 2741 dev_warn(&pf->pdev->dev, 2742 "VF %d requested %d more queues, but only %d left.\n", 2743 vf->vf_id, 2744 req_pairs - cur_pairs, 2745 pf->queues_left); 2746 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2747 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2748 dev_warn(&pf->pdev->dev, 2749 "VF %d requested %d more queues, but there is not enough for it.\n", 2750 vf->vf_id, 2751 req_pairs - cur_pairs); 2752 vfres->num_queue_pairs = cur_pairs; 2753 } else { 2754 /* successful request */ 2755 vf->num_req_queues = req_pairs; 2756 i40e_vc_reset_vf(vf, true); 2757 return 0; 2758 } 2759 2760 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2761 (u8 *)vfres, sizeof(*vfres)); 2762 } 2763 2764 /** 2765 * i40e_vc_get_stats_msg 2766 * @vf: pointer to the VF info 2767 * @msg: pointer to the msg buffer 2768 * 2769 * called from the VF to get vsi stats 2770 **/ 2771 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2772 { 2773 struct virtchnl_queue_select *vqs = 2774 (struct virtchnl_queue_select *)msg; 2775 struct i40e_pf *pf = vf->pf; 2776 struct i40e_eth_stats stats; 2777 i40e_status aq_ret = 0; 2778 struct i40e_vsi *vsi; 2779 2780 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2781 2782 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2783 aq_ret = I40E_ERR_PARAM; 2784 goto error_param; 2785 } 2786 2787 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2788 aq_ret = I40E_ERR_PARAM; 2789 goto error_param; 2790 } 2791 2792 vsi = pf->vsi[vf->lan_vsi_idx]; 2793 if (!vsi) { 2794 aq_ret = I40E_ERR_PARAM; 2795 goto error_param; 2796 } 2797 i40e_update_eth_stats(vsi); 2798 stats = vsi->eth_stats; 2799 2800 error_param: 2801 /* send the response back to the VF */ 2802 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2803 (u8 *)&stats, sizeof(stats)); 2804 } 2805 2806 #define I40E_MAX_MACVLAN_PER_HW 3072 2807 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2808 (num_ports)) 2809 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2810 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2811 */ 2812 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2813 #define I40E_VC_MAX_VLAN_PER_VF 16 2814 2815 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2816 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2817 typeof(num_ports) num_ports_ = (num_ports); \ 2818 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2819 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2820 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2821 /** 2822 * i40e_check_vf_permission 2823 * @vf: pointer to the VF info 2824 * @al: MAC address list from virtchnl 2825 * @is_quiet: set true for printing msg without opcode info, false otherwise 2826 * 2827 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2828 * if any address in the list is not valid. Checks the following conditions: 2829 * 2830 * 1) broadcast and zero addresses are never valid 2831 * 2) unicast addresses are not allowed if the VMM has administratively set 2832 * the VF MAC address, unless the VF is marked as privileged. 2833 * 3) There is enough space to add all the addresses. 2834 * 2835 * Note that to guarantee consistency, it is expected this function be called 2836 * while holding the mac_filter_hash_lock, as otherwise the current number of 2837 * addresses might not be accurate. 2838 **/ 2839 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2840 struct virtchnl_ether_addr_list *al, 2841 bool *is_quiet) 2842 { 2843 struct i40e_pf *pf = vf->pf; 2844 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2845 struct i40e_hw *hw = &pf->hw; 2846 int mac2add_cnt = 0; 2847 int i; 2848 2849 *is_quiet = false; 2850 for (i = 0; i < al->num_elements; i++) { 2851 struct i40e_mac_filter *f; 2852 u8 *addr = al->list[i].addr; 2853 2854 if (is_broadcast_ether_addr(addr) || 2855 is_zero_ether_addr(addr)) { 2856 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2857 addr); 2858 return I40E_ERR_INVALID_MAC_ADDR; 2859 } 2860 2861 /* If the host VMM administrator has set the VF MAC address 2862 * administratively via the ndo_set_vf_mac command then deny 2863 * permission to the VF to add or delete unicast MAC addresses. 2864 * Unless the VF is privileged and then it can do whatever. 2865 * The VF may request to set the MAC address filter already 2866 * assigned to it so do not return an error in that case. 2867 */ 2868 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2869 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2870 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2871 dev_err(&pf->pdev->dev, 2872 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2873 *is_quiet = true; 2874 return -EPERM; 2875 } 2876 2877 /*count filters that really will be added*/ 2878 f = i40e_find_mac(vsi, addr); 2879 if (!f) 2880 ++mac2add_cnt; 2881 } 2882 2883 /* If this VF is not privileged, then we can't add more than a limited 2884 * number of addresses. Check to make sure that the additions do not 2885 * push us over the limit. 2886 */ 2887 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2888 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2889 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2890 dev_err(&pf->pdev->dev, 2891 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2892 return -EPERM; 2893 } 2894 /* If this VF is trusted, it can use more resources than untrusted. 2895 * However to ensure that every trusted VF has appropriate number of 2896 * resources, divide whole pool of resources per port and then across 2897 * all VFs. 2898 */ 2899 } else { 2900 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2901 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2902 hw->num_ports)) { 2903 dev_err(&pf->pdev->dev, 2904 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2905 return -EPERM; 2906 } 2907 } 2908 return 0; 2909 } 2910 2911 /** 2912 * i40e_vc_add_mac_addr_msg 2913 * @vf: pointer to the VF info 2914 * @msg: pointer to the msg buffer 2915 * 2916 * add guest mac address filter 2917 **/ 2918 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2919 { 2920 struct virtchnl_ether_addr_list *al = 2921 (struct virtchnl_ether_addr_list *)msg; 2922 struct i40e_pf *pf = vf->pf; 2923 struct i40e_vsi *vsi = NULL; 2924 bool is_quiet = false; 2925 i40e_status ret = 0; 2926 int i; 2927 2928 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2929 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2930 ret = I40E_ERR_PARAM; 2931 goto error_param; 2932 } 2933 2934 vsi = pf->vsi[vf->lan_vsi_idx]; 2935 2936 /* Lock once, because all function inside for loop accesses VSI's 2937 * MAC filter list which needs to be protected using same lock. 2938 */ 2939 spin_lock_bh(&vsi->mac_filter_hash_lock); 2940 2941 ret = i40e_check_vf_permission(vf, al, &is_quiet); 2942 if (ret) { 2943 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2944 goto error_param; 2945 } 2946 2947 /* add new addresses to the list */ 2948 for (i = 0; i < al->num_elements; i++) { 2949 struct i40e_mac_filter *f; 2950 2951 f = i40e_find_mac(vsi, al->list[i].addr); 2952 if (!f) { 2953 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2954 2955 if (!f) { 2956 dev_err(&pf->pdev->dev, 2957 "Unable to add MAC filter %pM for VF %d\n", 2958 al->list[i].addr, vf->vf_id); 2959 ret = I40E_ERR_PARAM; 2960 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2961 goto error_param; 2962 } 2963 if (is_valid_ether_addr(al->list[i].addr) && 2964 is_zero_ether_addr(vf->default_lan_addr.addr)) 2965 ether_addr_copy(vf->default_lan_addr.addr, 2966 al->list[i].addr); 2967 } 2968 } 2969 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2970 2971 /* program the updated filter list */ 2972 ret = i40e_sync_vsi_filters(vsi); 2973 if (ret) 2974 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2975 vf->vf_id, ret); 2976 2977 error_param: 2978 /* send the response to the VF */ 2979 return i40e_vc_send_msg_to_vf_ex(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2980 ret, NULL, 0, is_quiet); 2981 } 2982 2983 /** 2984 * i40e_vc_del_mac_addr_msg 2985 * @vf: pointer to the VF info 2986 * @msg: pointer to the msg buffer 2987 * 2988 * remove guest mac address filter 2989 **/ 2990 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2991 { 2992 struct virtchnl_ether_addr_list *al = 2993 (struct virtchnl_ether_addr_list *)msg; 2994 bool was_unimac_deleted = false; 2995 struct i40e_pf *pf = vf->pf; 2996 struct i40e_vsi *vsi = NULL; 2997 i40e_status ret = 0; 2998 int i; 2999 3000 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3001 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3002 ret = I40E_ERR_PARAM; 3003 goto error_param; 3004 } 3005 3006 for (i = 0; i < al->num_elements; i++) { 3007 if (is_broadcast_ether_addr(al->list[i].addr) || 3008 is_zero_ether_addr(al->list[i].addr)) { 3009 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3010 al->list[i].addr, vf->vf_id); 3011 ret = I40E_ERR_INVALID_MAC_ADDR; 3012 goto error_param; 3013 } 3014 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 3015 was_unimac_deleted = true; 3016 } 3017 vsi = pf->vsi[vf->lan_vsi_idx]; 3018 3019 spin_lock_bh(&vsi->mac_filter_hash_lock); 3020 /* delete addresses from the list */ 3021 for (i = 0; i < al->num_elements; i++) 3022 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3023 ret = I40E_ERR_INVALID_MAC_ADDR; 3024 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3025 goto error_param; 3026 } 3027 3028 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3029 3030 /* program the updated filter list */ 3031 ret = i40e_sync_vsi_filters(vsi); 3032 if (ret) 3033 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3034 vf->vf_id, ret); 3035 3036 if (vf->trusted && was_unimac_deleted) { 3037 struct i40e_mac_filter *f; 3038 struct hlist_node *h; 3039 u8 *macaddr = NULL; 3040 int bkt; 3041 3042 /* set last unicast mac address as default */ 3043 spin_lock_bh(&vsi->mac_filter_hash_lock); 3044 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3045 if (is_valid_ether_addr(f->macaddr)) 3046 macaddr = f->macaddr; 3047 } 3048 if (macaddr) 3049 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3050 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3051 } 3052 error_param: 3053 /* send the response to the VF */ 3054 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3055 } 3056 3057 /** 3058 * i40e_vc_add_vlan_msg 3059 * @vf: pointer to the VF info 3060 * @msg: pointer to the msg buffer 3061 * 3062 * program guest vlan id 3063 **/ 3064 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3065 { 3066 struct virtchnl_vlan_filter_list *vfl = 3067 (struct virtchnl_vlan_filter_list *)msg; 3068 struct i40e_pf *pf = vf->pf; 3069 struct i40e_vsi *vsi = NULL; 3070 i40e_status aq_ret = 0; 3071 int i; 3072 3073 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3074 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3075 dev_err(&pf->pdev->dev, 3076 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3077 goto error_param; 3078 } 3079 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3080 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3081 aq_ret = I40E_ERR_PARAM; 3082 goto error_param; 3083 } 3084 3085 for (i = 0; i < vfl->num_elements; i++) { 3086 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3087 aq_ret = I40E_ERR_PARAM; 3088 dev_err(&pf->pdev->dev, 3089 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3090 goto error_param; 3091 } 3092 } 3093 vsi = pf->vsi[vf->lan_vsi_idx]; 3094 if (vsi->info.pvid) { 3095 aq_ret = I40E_ERR_PARAM; 3096 goto error_param; 3097 } 3098 3099 i40e_vlan_stripping_enable(vsi); 3100 for (i = 0; i < vfl->num_elements; i++) { 3101 /* add new VLAN filter */ 3102 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3103 if (!ret) 3104 vf->num_vlan++; 3105 3106 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3107 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3108 true, 3109 vfl->vlan_id[i], 3110 NULL); 3111 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3112 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3113 true, 3114 vfl->vlan_id[i], 3115 NULL); 3116 3117 if (ret) 3118 dev_err(&pf->pdev->dev, 3119 "Unable to add VLAN filter %d for VF %d, error %d\n", 3120 vfl->vlan_id[i], vf->vf_id, ret); 3121 } 3122 3123 error_param: 3124 /* send the response to the VF */ 3125 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3126 } 3127 3128 /** 3129 * i40e_vc_remove_vlan_msg 3130 * @vf: pointer to the VF info 3131 * @msg: pointer to the msg buffer 3132 * 3133 * remove programmed guest vlan id 3134 **/ 3135 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3136 { 3137 struct virtchnl_vlan_filter_list *vfl = 3138 (struct virtchnl_vlan_filter_list *)msg; 3139 struct i40e_pf *pf = vf->pf; 3140 struct i40e_vsi *vsi = NULL; 3141 i40e_status aq_ret = 0; 3142 int i; 3143 3144 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3145 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3146 aq_ret = I40E_ERR_PARAM; 3147 goto error_param; 3148 } 3149 3150 for (i = 0; i < vfl->num_elements; i++) { 3151 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3152 aq_ret = I40E_ERR_PARAM; 3153 goto error_param; 3154 } 3155 } 3156 3157 vsi = pf->vsi[vf->lan_vsi_idx]; 3158 if (vsi->info.pvid) { 3159 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3160 aq_ret = I40E_ERR_PARAM; 3161 goto error_param; 3162 } 3163 3164 for (i = 0; i < vfl->num_elements; i++) { 3165 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3166 vf->num_vlan--; 3167 3168 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3169 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3170 false, 3171 vfl->vlan_id[i], 3172 NULL); 3173 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3174 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3175 false, 3176 vfl->vlan_id[i], 3177 NULL); 3178 } 3179 3180 error_param: 3181 /* send the response to the VF */ 3182 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3183 } 3184 3185 /** 3186 * i40e_vc_iwarp_msg 3187 * @vf: pointer to the VF info 3188 * @msg: pointer to the msg buffer 3189 * @msglen: msg length 3190 * 3191 * called from the VF for the iwarp msgs 3192 **/ 3193 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3194 { 3195 struct i40e_pf *pf = vf->pf; 3196 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3197 i40e_status aq_ret = 0; 3198 3199 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3200 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3201 aq_ret = I40E_ERR_PARAM; 3202 goto error_param; 3203 } 3204 3205 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3206 msg, msglen); 3207 3208 error_param: 3209 /* send the response to the VF */ 3210 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 3211 aq_ret); 3212 } 3213 3214 /** 3215 * i40e_vc_iwarp_qvmap_msg 3216 * @vf: pointer to the VF info 3217 * @msg: pointer to the msg buffer 3218 * @config: config qvmap or release it 3219 * 3220 * called from the VF for the iwarp msgs 3221 **/ 3222 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3223 { 3224 struct virtchnl_iwarp_qvlist_info *qvlist_info = 3225 (struct virtchnl_iwarp_qvlist_info *)msg; 3226 i40e_status aq_ret = 0; 3227 3228 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3229 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3230 aq_ret = I40E_ERR_PARAM; 3231 goto error_param; 3232 } 3233 3234 if (config) { 3235 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 3236 aq_ret = I40E_ERR_PARAM; 3237 } else { 3238 i40e_release_iwarp_qvlist(vf); 3239 } 3240 3241 error_param: 3242 /* send the response to the VF */ 3243 return i40e_vc_send_resp_to_vf(vf, 3244 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 3245 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 3246 aq_ret); 3247 } 3248 3249 /** 3250 * i40e_vc_config_rss_key 3251 * @vf: pointer to the VF info 3252 * @msg: pointer to the msg buffer 3253 * 3254 * Configure the VF's RSS key 3255 **/ 3256 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3257 { 3258 struct virtchnl_rss_key *vrk = 3259 (struct virtchnl_rss_key *)msg; 3260 struct i40e_pf *pf = vf->pf; 3261 struct i40e_vsi *vsi = NULL; 3262 i40e_status aq_ret = 0; 3263 3264 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3265 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3266 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3267 aq_ret = I40E_ERR_PARAM; 3268 goto err; 3269 } 3270 3271 vsi = pf->vsi[vf->lan_vsi_idx]; 3272 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3273 err: 3274 /* send the response to the VF */ 3275 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3276 aq_ret); 3277 } 3278 3279 /** 3280 * i40e_vc_config_rss_lut 3281 * @vf: pointer to the VF info 3282 * @msg: pointer to the msg buffer 3283 * 3284 * Configure the VF's RSS LUT 3285 **/ 3286 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3287 { 3288 struct virtchnl_rss_lut *vrl = 3289 (struct virtchnl_rss_lut *)msg; 3290 struct i40e_pf *pf = vf->pf; 3291 struct i40e_vsi *vsi = NULL; 3292 i40e_status aq_ret = 0; 3293 u16 i; 3294 3295 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3296 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3297 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3298 aq_ret = I40E_ERR_PARAM; 3299 goto err; 3300 } 3301 3302 for (i = 0; i < vrl->lut_entries; i++) 3303 if (vrl->lut[i] >= vf->num_queue_pairs) { 3304 aq_ret = I40E_ERR_PARAM; 3305 goto err; 3306 } 3307 3308 vsi = pf->vsi[vf->lan_vsi_idx]; 3309 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3310 /* send the response to the VF */ 3311 err: 3312 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3313 aq_ret); 3314 } 3315 3316 /** 3317 * i40e_vc_get_rss_hena 3318 * @vf: pointer to the VF info 3319 * @msg: pointer to the msg buffer 3320 * 3321 * Return the RSS HENA bits allowed by the hardware 3322 **/ 3323 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3324 { 3325 struct virtchnl_rss_hena *vrh = NULL; 3326 struct i40e_pf *pf = vf->pf; 3327 i40e_status aq_ret = 0; 3328 int len = 0; 3329 3330 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3331 aq_ret = I40E_ERR_PARAM; 3332 goto err; 3333 } 3334 len = sizeof(struct virtchnl_rss_hena); 3335 3336 vrh = kzalloc(len, GFP_KERNEL); 3337 if (!vrh) { 3338 aq_ret = I40E_ERR_NO_MEMORY; 3339 len = 0; 3340 goto err; 3341 } 3342 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3343 err: 3344 /* send the response back to the VF */ 3345 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3346 aq_ret, (u8 *)vrh, len); 3347 kfree(vrh); 3348 return aq_ret; 3349 } 3350 3351 /** 3352 * i40e_vc_set_rss_hena 3353 * @vf: pointer to the VF info 3354 * @msg: pointer to the msg buffer 3355 * 3356 * Set the RSS HENA bits for the VF 3357 **/ 3358 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3359 { 3360 struct virtchnl_rss_hena *vrh = 3361 (struct virtchnl_rss_hena *)msg; 3362 struct i40e_pf *pf = vf->pf; 3363 struct i40e_hw *hw = &pf->hw; 3364 i40e_status aq_ret = 0; 3365 3366 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3367 aq_ret = I40E_ERR_PARAM; 3368 goto err; 3369 } 3370 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3371 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3372 (u32)(vrh->hena >> 32)); 3373 3374 /* send the response to the VF */ 3375 err: 3376 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3377 } 3378 3379 /** 3380 * i40e_vc_enable_vlan_stripping 3381 * @vf: pointer to the VF info 3382 * @msg: pointer to the msg buffer 3383 * 3384 * Enable vlan header stripping for the VF 3385 **/ 3386 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3387 { 3388 i40e_status aq_ret = 0; 3389 struct i40e_vsi *vsi; 3390 3391 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3392 aq_ret = I40E_ERR_PARAM; 3393 goto err; 3394 } 3395 3396 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3397 i40e_vlan_stripping_enable(vsi); 3398 3399 /* send the response to the VF */ 3400 err: 3401 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3402 aq_ret); 3403 } 3404 3405 /** 3406 * i40e_vc_disable_vlan_stripping 3407 * @vf: pointer to the VF info 3408 * @msg: pointer to the msg buffer 3409 * 3410 * Disable vlan header stripping for the VF 3411 **/ 3412 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3413 { 3414 i40e_status aq_ret = 0; 3415 struct i40e_vsi *vsi; 3416 3417 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3418 aq_ret = I40E_ERR_PARAM; 3419 goto err; 3420 } 3421 3422 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3423 i40e_vlan_stripping_disable(vsi); 3424 3425 /* send the response to the VF */ 3426 err: 3427 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3428 aq_ret); 3429 } 3430 3431 /** 3432 * i40e_validate_cloud_filter 3433 * @vf: pointer to VF structure 3434 * @tc_filter: pointer to filter requested 3435 * 3436 * This function validates cloud filter programmed as TC filter for ADq 3437 **/ 3438 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3439 struct virtchnl_filter *tc_filter) 3440 { 3441 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3442 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3443 struct i40e_pf *pf = vf->pf; 3444 struct i40e_vsi *vsi = NULL; 3445 struct i40e_mac_filter *f; 3446 struct hlist_node *h; 3447 bool found = false; 3448 int bkt; 3449 3450 if (!tc_filter->action) { 3451 dev_info(&pf->pdev->dev, 3452 "VF %d: Currently ADq doesn't support Drop Action\n", 3453 vf->vf_id); 3454 goto err; 3455 } 3456 3457 /* action_meta is TC number here to which the filter is applied */ 3458 if (!tc_filter->action_meta || 3459 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3460 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3461 vf->vf_id, tc_filter->action_meta); 3462 goto err; 3463 } 3464 3465 /* Check filter if it's programmed for advanced mode or basic mode. 3466 * There are two ADq modes (for VF only), 3467 * 1. Basic mode: intended to allow as many filter options as possible 3468 * to be added to a VF in Non-trusted mode. Main goal is 3469 * to add filters to its own MAC and VLAN id. 3470 * 2. Advanced mode: is for allowing filters to be applied other than 3471 * its own MAC or VLAN. This mode requires the VF to be 3472 * Trusted. 3473 */ 3474 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3475 vsi = pf->vsi[vf->lan_vsi_idx]; 3476 f = i40e_find_mac(vsi, data.dst_mac); 3477 3478 if (!f) { 3479 dev_info(&pf->pdev->dev, 3480 "Destination MAC %pM doesn't belong to VF %d\n", 3481 data.dst_mac, vf->vf_id); 3482 goto err; 3483 } 3484 3485 if (mask.vlan_id) { 3486 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3487 hlist) { 3488 if (f->vlan == ntohs(data.vlan_id)) { 3489 found = true; 3490 break; 3491 } 3492 } 3493 if (!found) { 3494 dev_info(&pf->pdev->dev, 3495 "VF %d doesn't have any VLAN id %u\n", 3496 vf->vf_id, ntohs(data.vlan_id)); 3497 goto err; 3498 } 3499 } 3500 } else { 3501 /* Check if VF is trusted */ 3502 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3503 dev_err(&pf->pdev->dev, 3504 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3505 vf->vf_id); 3506 return I40E_ERR_CONFIG; 3507 } 3508 } 3509 3510 if (mask.dst_mac[0] & data.dst_mac[0]) { 3511 if (is_broadcast_ether_addr(data.dst_mac) || 3512 is_zero_ether_addr(data.dst_mac)) { 3513 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3514 vf->vf_id, data.dst_mac); 3515 goto err; 3516 } 3517 } 3518 3519 if (mask.src_mac[0] & data.src_mac[0]) { 3520 if (is_broadcast_ether_addr(data.src_mac) || 3521 is_zero_ether_addr(data.src_mac)) { 3522 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3523 vf->vf_id, data.src_mac); 3524 goto err; 3525 } 3526 } 3527 3528 if (mask.dst_port & data.dst_port) { 3529 if (!data.dst_port) { 3530 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3531 vf->vf_id); 3532 goto err; 3533 } 3534 } 3535 3536 if (mask.src_port & data.src_port) { 3537 if (!data.src_port) { 3538 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3539 vf->vf_id); 3540 goto err; 3541 } 3542 } 3543 3544 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3545 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3546 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3547 vf->vf_id); 3548 goto err; 3549 } 3550 3551 if (mask.vlan_id & data.vlan_id) { 3552 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3553 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3554 vf->vf_id); 3555 goto err; 3556 } 3557 } 3558 3559 return I40E_SUCCESS; 3560 err: 3561 return I40E_ERR_CONFIG; 3562 } 3563 3564 /** 3565 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3566 * @vf: pointer to the VF info 3567 * @seid: seid of the vsi it is searching for 3568 **/ 3569 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3570 { 3571 struct i40e_pf *pf = vf->pf; 3572 struct i40e_vsi *vsi = NULL; 3573 int i; 3574 3575 for (i = 0; i < vf->num_tc ; i++) { 3576 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3577 if (vsi && vsi->seid == seid) 3578 return vsi; 3579 } 3580 return NULL; 3581 } 3582 3583 /** 3584 * i40e_del_all_cloud_filters 3585 * @vf: pointer to the VF info 3586 * 3587 * This function deletes all cloud filters 3588 **/ 3589 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3590 { 3591 struct i40e_cloud_filter *cfilter = NULL; 3592 struct i40e_pf *pf = vf->pf; 3593 struct i40e_vsi *vsi = NULL; 3594 struct hlist_node *node; 3595 int ret; 3596 3597 hlist_for_each_entry_safe(cfilter, node, 3598 &vf->cloud_filter_list, cloud_node) { 3599 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3600 3601 if (!vsi) { 3602 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3603 vf->vf_id, cfilter->seid); 3604 continue; 3605 } 3606 3607 if (cfilter->dst_port) 3608 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3609 false); 3610 else 3611 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3612 if (ret) 3613 dev_err(&pf->pdev->dev, 3614 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3615 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3616 i40e_aq_str(&pf->hw, 3617 pf->hw.aq.asq_last_status)); 3618 3619 hlist_del(&cfilter->cloud_node); 3620 kfree(cfilter); 3621 vf->num_cloud_filters--; 3622 } 3623 } 3624 3625 /** 3626 * i40e_vc_del_cloud_filter 3627 * @vf: pointer to the VF info 3628 * @msg: pointer to the msg buffer 3629 * 3630 * This function deletes a cloud filter programmed as TC filter for ADq 3631 **/ 3632 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3633 { 3634 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3635 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3636 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3637 struct i40e_cloud_filter cfilter, *cf = NULL; 3638 struct i40e_pf *pf = vf->pf; 3639 struct i40e_vsi *vsi = NULL; 3640 struct hlist_node *node; 3641 i40e_status aq_ret = 0; 3642 int i, ret; 3643 3644 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3645 aq_ret = I40E_ERR_PARAM; 3646 goto err; 3647 } 3648 3649 if (!vf->adq_enabled) { 3650 dev_info(&pf->pdev->dev, 3651 "VF %d: ADq not enabled, can't apply cloud filter\n", 3652 vf->vf_id); 3653 aq_ret = I40E_ERR_PARAM; 3654 goto err; 3655 } 3656 3657 if (i40e_validate_cloud_filter(vf, vcf)) { 3658 dev_info(&pf->pdev->dev, 3659 "VF %d: Invalid input, can't apply cloud filter\n", 3660 vf->vf_id); 3661 aq_ret = I40E_ERR_PARAM; 3662 goto err; 3663 } 3664 3665 memset(&cfilter, 0, sizeof(cfilter)); 3666 /* parse destination mac address */ 3667 for (i = 0; i < ETH_ALEN; i++) 3668 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3669 3670 /* parse source mac address */ 3671 for (i = 0; i < ETH_ALEN; i++) 3672 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3673 3674 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3675 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3676 cfilter.src_port = mask.src_port & tcf.src_port; 3677 3678 switch (vcf->flow_type) { 3679 case VIRTCHNL_TCP_V4_FLOW: 3680 cfilter.n_proto = ETH_P_IP; 3681 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3682 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3683 ARRAY_SIZE(tcf.dst_ip)); 3684 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3685 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3686 ARRAY_SIZE(tcf.dst_ip)); 3687 break; 3688 case VIRTCHNL_TCP_V6_FLOW: 3689 cfilter.n_proto = ETH_P_IPV6; 3690 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3691 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3692 sizeof(cfilter.ip.v6.dst_ip6)); 3693 if (mask.src_ip[3] & tcf.src_ip[3]) 3694 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3695 sizeof(cfilter.ip.v6.src_ip6)); 3696 break; 3697 default: 3698 /* TC filter can be configured based on different combinations 3699 * and in this case IP is not a part of filter config 3700 */ 3701 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3702 vf->vf_id); 3703 } 3704 3705 /* get the vsi to which the tc belongs to */ 3706 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3707 cfilter.seid = vsi->seid; 3708 cfilter.flags = vcf->field_flags; 3709 3710 /* Deleting TC filter */ 3711 if (tcf.dst_port) 3712 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3713 else 3714 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3715 if (ret) { 3716 dev_err(&pf->pdev->dev, 3717 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3718 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3719 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3720 goto err; 3721 } 3722 3723 hlist_for_each_entry_safe(cf, node, 3724 &vf->cloud_filter_list, cloud_node) { 3725 if (cf->seid != cfilter.seid) 3726 continue; 3727 if (mask.dst_port) 3728 if (cfilter.dst_port != cf->dst_port) 3729 continue; 3730 if (mask.dst_mac[0]) 3731 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3732 continue; 3733 /* for ipv4 data to be valid, only first byte of mask is set */ 3734 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3735 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3736 ARRAY_SIZE(tcf.dst_ip))) 3737 continue; 3738 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3739 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3740 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3741 sizeof(cfilter.ip.v6.src_ip6))) 3742 continue; 3743 if (mask.vlan_id) 3744 if (cfilter.vlan_id != cf->vlan_id) 3745 continue; 3746 3747 hlist_del(&cf->cloud_node); 3748 kfree(cf); 3749 vf->num_cloud_filters--; 3750 } 3751 3752 err: 3753 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3754 aq_ret); 3755 } 3756 3757 /** 3758 * i40e_vc_add_cloud_filter 3759 * @vf: pointer to the VF info 3760 * @msg: pointer to the msg buffer 3761 * 3762 * This function adds a cloud filter programmed as TC filter for ADq 3763 **/ 3764 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3765 { 3766 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3767 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3768 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3769 struct i40e_cloud_filter *cfilter = NULL; 3770 struct i40e_pf *pf = vf->pf; 3771 struct i40e_vsi *vsi = NULL; 3772 i40e_status aq_ret = 0; 3773 int i, ret; 3774 3775 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3776 aq_ret = I40E_ERR_PARAM; 3777 goto err_out; 3778 } 3779 3780 if (!vf->adq_enabled) { 3781 dev_info(&pf->pdev->dev, 3782 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3783 vf->vf_id); 3784 aq_ret = I40E_ERR_PARAM; 3785 goto err_out; 3786 } 3787 3788 if (i40e_validate_cloud_filter(vf, vcf)) { 3789 dev_info(&pf->pdev->dev, 3790 "VF %d: Invalid input/s, can't apply cloud filter\n", 3791 vf->vf_id); 3792 aq_ret = I40E_ERR_PARAM; 3793 goto err_out; 3794 } 3795 3796 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3797 if (!cfilter) 3798 return -ENOMEM; 3799 3800 /* parse destination mac address */ 3801 for (i = 0; i < ETH_ALEN; i++) 3802 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3803 3804 /* parse source mac address */ 3805 for (i = 0; i < ETH_ALEN; i++) 3806 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3807 3808 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3809 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3810 cfilter->src_port = mask.src_port & tcf.src_port; 3811 3812 switch (vcf->flow_type) { 3813 case VIRTCHNL_TCP_V4_FLOW: 3814 cfilter->n_proto = ETH_P_IP; 3815 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3816 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3817 ARRAY_SIZE(tcf.dst_ip)); 3818 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3819 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3820 ARRAY_SIZE(tcf.dst_ip)); 3821 break; 3822 case VIRTCHNL_TCP_V6_FLOW: 3823 cfilter->n_proto = ETH_P_IPV6; 3824 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3825 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3826 sizeof(cfilter->ip.v6.dst_ip6)); 3827 if (mask.src_ip[3] & tcf.src_ip[3]) 3828 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3829 sizeof(cfilter->ip.v6.src_ip6)); 3830 break; 3831 default: 3832 /* TC filter can be configured based on different combinations 3833 * and in this case IP is not a part of filter config 3834 */ 3835 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3836 vf->vf_id); 3837 } 3838 3839 /* get the VSI to which the TC belongs to */ 3840 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3841 cfilter->seid = vsi->seid; 3842 cfilter->flags = vcf->field_flags; 3843 3844 /* Adding cloud filter programmed as TC filter */ 3845 if (tcf.dst_port) 3846 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3847 else 3848 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3849 if (ret) { 3850 dev_err(&pf->pdev->dev, 3851 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3852 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3853 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3854 goto err_free; 3855 } 3856 3857 INIT_HLIST_NODE(&cfilter->cloud_node); 3858 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3859 /* release the pointer passing it to the collection */ 3860 cfilter = NULL; 3861 vf->num_cloud_filters++; 3862 err_free: 3863 kfree(cfilter); 3864 err_out: 3865 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3866 aq_ret); 3867 } 3868 3869 /** 3870 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3871 * @vf: pointer to the VF info 3872 * @msg: pointer to the msg buffer 3873 **/ 3874 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3875 { 3876 struct virtchnl_tc_info *tci = 3877 (struct virtchnl_tc_info *)msg; 3878 struct i40e_pf *pf = vf->pf; 3879 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3880 int i, adq_request_qps = 0; 3881 i40e_status aq_ret = 0; 3882 u64 speed = 0; 3883 3884 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3885 aq_ret = I40E_ERR_PARAM; 3886 goto err; 3887 } 3888 3889 /* ADq cannot be applied if spoof check is ON */ 3890 if (vf->spoofchk) { 3891 dev_err(&pf->pdev->dev, 3892 "Spoof check is ON, turn it OFF to enable ADq\n"); 3893 aq_ret = I40E_ERR_PARAM; 3894 goto err; 3895 } 3896 3897 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3898 dev_err(&pf->pdev->dev, 3899 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3900 vf->vf_id); 3901 aq_ret = I40E_ERR_PARAM; 3902 goto err; 3903 } 3904 3905 /* max number of traffic classes for VF currently capped at 4 */ 3906 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3907 dev_err(&pf->pdev->dev, 3908 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3909 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3910 aq_ret = I40E_ERR_PARAM; 3911 goto err; 3912 } 3913 3914 /* validate queues for each TC */ 3915 for (i = 0; i < tci->num_tc; i++) 3916 if (!tci->list[i].count || 3917 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3918 dev_err(&pf->pdev->dev, 3919 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3920 vf->vf_id, i, tci->list[i].count, 3921 I40E_DEFAULT_QUEUES_PER_VF); 3922 aq_ret = I40E_ERR_PARAM; 3923 goto err; 3924 } 3925 3926 /* need Max VF queues but already have default number of queues */ 3927 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3928 3929 if (pf->queues_left < adq_request_qps) { 3930 dev_err(&pf->pdev->dev, 3931 "No queues left to allocate to VF %d\n", 3932 vf->vf_id); 3933 aq_ret = I40E_ERR_PARAM; 3934 goto err; 3935 } else { 3936 /* we need to allocate max VF queues to enable ADq so as to 3937 * make sure ADq enabled VF always gets back queues when it 3938 * goes through a reset. 3939 */ 3940 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3941 } 3942 3943 /* get link speed in MB to validate rate limit */ 3944 speed = i40e_vc_link_speed2mbps(ls->link_speed); 3945 if (speed == SPEED_UNKNOWN) { 3946 dev_err(&pf->pdev->dev, 3947 "Cannot detect link speed\n"); 3948 aq_ret = I40E_ERR_PARAM; 3949 goto err; 3950 } 3951 3952 /* parse data from the queue channel info */ 3953 vf->num_tc = tci->num_tc; 3954 for (i = 0; i < vf->num_tc; i++) { 3955 if (tci->list[i].max_tx_rate) { 3956 if (tci->list[i].max_tx_rate > speed) { 3957 dev_err(&pf->pdev->dev, 3958 "Invalid max tx rate %llu specified for VF %d.", 3959 tci->list[i].max_tx_rate, 3960 vf->vf_id); 3961 aq_ret = I40E_ERR_PARAM; 3962 goto err; 3963 } else { 3964 vf->ch[i].max_tx_rate = 3965 tci->list[i].max_tx_rate; 3966 } 3967 } 3968 vf->ch[i].num_qps = tci->list[i].count; 3969 } 3970 3971 /* set this flag only after making sure all inputs are sane */ 3972 vf->adq_enabled = true; 3973 3974 /* reset the VF in order to allocate resources */ 3975 i40e_vc_reset_vf(vf, true); 3976 3977 return I40E_SUCCESS; 3978 3979 /* send the response to the VF */ 3980 err: 3981 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3982 aq_ret); 3983 } 3984 3985 /** 3986 * i40e_vc_del_qch_msg 3987 * @vf: pointer to the VF info 3988 * @msg: pointer to the msg buffer 3989 **/ 3990 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3991 { 3992 struct i40e_pf *pf = vf->pf; 3993 i40e_status aq_ret = 0; 3994 3995 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3996 aq_ret = I40E_ERR_PARAM; 3997 goto err; 3998 } 3999 4000 if (vf->adq_enabled) { 4001 i40e_del_all_cloud_filters(vf); 4002 i40e_del_qch(vf); 4003 vf->adq_enabled = false; 4004 vf->num_tc = 0; 4005 dev_info(&pf->pdev->dev, 4006 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4007 vf->vf_id); 4008 } else { 4009 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4010 vf->vf_id); 4011 aq_ret = I40E_ERR_PARAM; 4012 } 4013 4014 /* reset the VF in order to allocate resources */ 4015 i40e_vc_reset_vf(vf, true); 4016 4017 return I40E_SUCCESS; 4018 4019 err: 4020 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4021 aq_ret); 4022 } 4023 4024 /** 4025 * i40e_vc_process_vf_msg 4026 * @pf: pointer to the PF structure 4027 * @vf_id: source VF id 4028 * @v_opcode: operation code 4029 * @v_retval: unused return value code 4030 * @msg: pointer to the msg buffer 4031 * @msglen: msg length 4032 * 4033 * called from the common aeq/arq handler to 4034 * process request from VF 4035 **/ 4036 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4037 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4038 { 4039 struct i40e_hw *hw = &pf->hw; 4040 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4041 struct i40e_vf *vf; 4042 int ret; 4043 4044 pf->vf_aq_requests++; 4045 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4046 return -EINVAL; 4047 vf = &(pf->vf[local_vf_id]); 4048 4049 /* Check if VF is disabled. */ 4050 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4051 return I40E_ERR_PARAM; 4052 4053 /* perform basic checks on the msg */ 4054 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4055 4056 if (ret) { 4057 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 4058 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4059 local_vf_id, v_opcode, msglen); 4060 switch (ret) { 4061 case VIRTCHNL_STATUS_ERR_PARAM: 4062 return -EPERM; 4063 default: 4064 return -EINVAL; 4065 } 4066 } 4067 4068 switch (v_opcode) { 4069 case VIRTCHNL_OP_VERSION: 4070 ret = i40e_vc_get_version_msg(vf, msg); 4071 break; 4072 case VIRTCHNL_OP_GET_VF_RESOURCES: 4073 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4074 i40e_vc_notify_vf_link_state(vf); 4075 break; 4076 case VIRTCHNL_OP_RESET_VF: 4077 i40e_vc_reset_vf(vf, false); 4078 ret = 0; 4079 break; 4080 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4081 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4082 break; 4083 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4084 ret = i40e_vc_config_queues_msg(vf, msg); 4085 break; 4086 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4087 ret = i40e_vc_config_irq_map_msg(vf, msg); 4088 break; 4089 case VIRTCHNL_OP_ENABLE_QUEUES: 4090 ret = i40e_vc_enable_queues_msg(vf, msg); 4091 i40e_vc_notify_vf_link_state(vf); 4092 break; 4093 case VIRTCHNL_OP_DISABLE_QUEUES: 4094 ret = i40e_vc_disable_queues_msg(vf, msg); 4095 break; 4096 case VIRTCHNL_OP_ADD_ETH_ADDR: 4097 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4098 break; 4099 case VIRTCHNL_OP_DEL_ETH_ADDR: 4100 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4101 break; 4102 case VIRTCHNL_OP_ADD_VLAN: 4103 ret = i40e_vc_add_vlan_msg(vf, msg); 4104 break; 4105 case VIRTCHNL_OP_DEL_VLAN: 4106 ret = i40e_vc_remove_vlan_msg(vf, msg); 4107 break; 4108 case VIRTCHNL_OP_GET_STATS: 4109 ret = i40e_vc_get_stats_msg(vf, msg); 4110 break; 4111 case VIRTCHNL_OP_IWARP: 4112 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 4113 break; 4114 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 4115 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 4116 break; 4117 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 4118 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 4119 break; 4120 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4121 ret = i40e_vc_config_rss_key(vf, msg); 4122 break; 4123 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4124 ret = i40e_vc_config_rss_lut(vf, msg); 4125 break; 4126 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4127 ret = i40e_vc_get_rss_hena(vf, msg); 4128 break; 4129 case VIRTCHNL_OP_SET_RSS_HENA: 4130 ret = i40e_vc_set_rss_hena(vf, msg); 4131 break; 4132 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4133 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4134 break; 4135 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4136 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4137 break; 4138 case VIRTCHNL_OP_REQUEST_QUEUES: 4139 ret = i40e_vc_request_queues_msg(vf, msg); 4140 break; 4141 case VIRTCHNL_OP_ENABLE_CHANNELS: 4142 ret = i40e_vc_add_qch_msg(vf, msg); 4143 break; 4144 case VIRTCHNL_OP_DISABLE_CHANNELS: 4145 ret = i40e_vc_del_qch_msg(vf, msg); 4146 break; 4147 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4148 ret = i40e_vc_add_cloud_filter(vf, msg); 4149 break; 4150 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4151 ret = i40e_vc_del_cloud_filter(vf, msg); 4152 break; 4153 case VIRTCHNL_OP_UNKNOWN: 4154 default: 4155 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4156 v_opcode, local_vf_id); 4157 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4158 I40E_ERR_NOT_IMPLEMENTED); 4159 break; 4160 } 4161 4162 return ret; 4163 } 4164 4165 /** 4166 * i40e_vc_process_vflr_event 4167 * @pf: pointer to the PF structure 4168 * 4169 * called from the vlfr irq handler to 4170 * free up VF resources and state variables 4171 **/ 4172 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4173 { 4174 struct i40e_hw *hw = &pf->hw; 4175 u32 reg, reg_idx, bit_idx; 4176 struct i40e_vf *vf; 4177 int vf_id; 4178 4179 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4180 return 0; 4181 4182 /* Re-enable the VFLR interrupt cause here, before looking for which 4183 * VF got reset. Otherwise, if another VF gets a reset while the 4184 * first one is being processed, that interrupt will be lost, and 4185 * that VF will be stuck in reset forever. 4186 */ 4187 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4188 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4189 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4190 i40e_flush(hw); 4191 4192 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4193 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4194 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4195 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4196 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4197 vf = &pf->vf[vf_id]; 4198 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4199 if (reg & BIT(bit_idx)) 4200 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4201 i40e_reset_vf(vf, true); 4202 } 4203 4204 return 0; 4205 } 4206 4207 /** 4208 * i40e_validate_vf 4209 * @pf: the physical function 4210 * @vf_id: VF identifier 4211 * 4212 * Check that the VF is enabled and the VSI exists. 4213 * 4214 * Returns 0 on success, negative on failure 4215 **/ 4216 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4217 { 4218 struct i40e_vsi *vsi; 4219 struct i40e_vf *vf; 4220 int ret = 0; 4221 4222 if (vf_id >= pf->num_alloc_vfs) { 4223 dev_err(&pf->pdev->dev, 4224 "Invalid VF Identifier %d\n", vf_id); 4225 ret = -EINVAL; 4226 goto err_out; 4227 } 4228 vf = &pf->vf[vf_id]; 4229 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4230 if (!vsi) 4231 ret = -EINVAL; 4232 err_out: 4233 return ret; 4234 } 4235 4236 /** 4237 * i40e_ndo_set_vf_mac 4238 * @netdev: network interface device structure 4239 * @vf_id: VF identifier 4240 * @mac: mac address 4241 * 4242 * program VF mac address 4243 **/ 4244 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4245 { 4246 struct i40e_netdev_priv *np = netdev_priv(netdev); 4247 struct i40e_vsi *vsi = np->vsi; 4248 struct i40e_pf *pf = vsi->back; 4249 struct i40e_mac_filter *f; 4250 struct i40e_vf *vf; 4251 int ret = 0; 4252 struct hlist_node *h; 4253 int bkt; 4254 u8 i; 4255 4256 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4257 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4258 return -EAGAIN; 4259 } 4260 4261 /* validate the request */ 4262 ret = i40e_validate_vf(pf, vf_id); 4263 if (ret) 4264 goto error_param; 4265 4266 vf = &pf->vf[vf_id]; 4267 4268 /* When the VF is resetting wait until it is done. 4269 * It can take up to 200 milliseconds, 4270 * but wait for up to 300 milliseconds to be safe. 4271 * Acquire the VSI pointer only after the VF has been 4272 * properly initialized. 4273 */ 4274 for (i = 0; i < 15; i++) { 4275 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4276 break; 4277 msleep(20); 4278 } 4279 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4280 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4281 vf_id); 4282 ret = -EAGAIN; 4283 goto error_param; 4284 } 4285 vsi = pf->vsi[vf->lan_vsi_idx]; 4286 4287 if (is_multicast_ether_addr(mac)) { 4288 dev_err(&pf->pdev->dev, 4289 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4290 ret = -EINVAL; 4291 goto error_param; 4292 } 4293 4294 /* Lock once because below invoked function add/del_filter requires 4295 * mac_filter_hash_lock to be held 4296 */ 4297 spin_lock_bh(&vsi->mac_filter_hash_lock); 4298 4299 /* delete the temporary mac address */ 4300 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4301 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4302 4303 /* Delete all the filters for this VSI - we're going to kill it 4304 * anyway. 4305 */ 4306 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4307 __i40e_del_filter(vsi, f); 4308 4309 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4310 4311 /* program mac filter */ 4312 if (i40e_sync_vsi_filters(vsi)) { 4313 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4314 ret = -EIO; 4315 goto error_param; 4316 } 4317 ether_addr_copy(vf->default_lan_addr.addr, mac); 4318 4319 if (is_zero_ether_addr(mac)) { 4320 vf->pf_set_mac = false; 4321 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4322 } else { 4323 vf->pf_set_mac = true; 4324 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4325 mac, vf_id); 4326 } 4327 4328 /* Force the VF interface down so it has to bring up with new MAC 4329 * address 4330 */ 4331 i40e_vc_reset_vf(vf, true); 4332 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4333 4334 error_param: 4335 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4336 return ret; 4337 } 4338 4339 /** 4340 * i40e_ndo_set_vf_port_vlan 4341 * @netdev: network interface device structure 4342 * @vf_id: VF identifier 4343 * @vlan_id: mac address 4344 * @qos: priority setting 4345 * @vlan_proto: vlan protocol 4346 * 4347 * program VF vlan id and/or qos 4348 **/ 4349 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4350 u16 vlan_id, u8 qos, __be16 vlan_proto) 4351 { 4352 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4353 struct i40e_netdev_priv *np = netdev_priv(netdev); 4354 bool allmulti = false, alluni = false; 4355 struct i40e_pf *pf = np->vsi->back; 4356 struct i40e_vsi *vsi; 4357 struct i40e_vf *vf; 4358 int ret = 0; 4359 4360 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4361 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4362 return -EAGAIN; 4363 } 4364 4365 /* validate the request */ 4366 ret = i40e_validate_vf(pf, vf_id); 4367 if (ret) 4368 goto error_pvid; 4369 4370 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4371 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4372 ret = -EINVAL; 4373 goto error_pvid; 4374 } 4375 4376 if (vlan_proto != htons(ETH_P_8021Q)) { 4377 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4378 ret = -EPROTONOSUPPORT; 4379 goto error_pvid; 4380 } 4381 4382 vf = &pf->vf[vf_id]; 4383 vsi = pf->vsi[vf->lan_vsi_idx]; 4384 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4385 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4386 vf_id); 4387 ret = -EAGAIN; 4388 goto error_pvid; 4389 } 4390 4391 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4392 /* duplicate request, so just return success */ 4393 goto error_pvid; 4394 4395 i40e_vc_reset_vf(vf, true); 4396 /* During reset the VF got a new VSI, so refresh a pointer. */ 4397 vsi = pf->vsi[vf->lan_vsi_idx]; 4398 /* Locked once because multiple functions below iterate list */ 4399 spin_lock_bh(&vsi->mac_filter_hash_lock); 4400 4401 /* Check for condition where there was already a port VLAN ID 4402 * filter set and now it is being deleted by setting it to zero. 4403 * Additionally check for the condition where there was a port 4404 * VLAN but now there is a new and different port VLAN being set. 4405 * Before deleting all the old VLAN filters we must add new ones 4406 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4407 * MAC addresses deleted. 4408 */ 4409 if ((!(vlan_id || qos) || 4410 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4411 vsi->info.pvid) { 4412 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4413 if (ret) { 4414 dev_info(&vsi->back->pdev->dev, 4415 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4416 vsi->back->hw.aq.asq_last_status); 4417 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4418 goto error_pvid; 4419 } 4420 } 4421 4422 if (vsi->info.pvid) { 4423 /* remove all filters on the old VLAN */ 4424 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4425 VLAN_VID_MASK)); 4426 } 4427 4428 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4429 4430 /* disable promisc modes in case they were enabled */ 4431 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4432 allmulti, alluni); 4433 if (ret) { 4434 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4435 goto error_pvid; 4436 } 4437 4438 if (vlan_id || qos) 4439 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4440 else 4441 i40e_vsi_remove_pvid(vsi); 4442 spin_lock_bh(&vsi->mac_filter_hash_lock); 4443 4444 if (vlan_id) { 4445 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4446 vlan_id, qos, vf_id); 4447 4448 /* add new VLAN filter for each MAC */ 4449 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4450 if (ret) { 4451 dev_info(&vsi->back->pdev->dev, 4452 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4453 vsi->back->hw.aq.asq_last_status); 4454 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4455 goto error_pvid; 4456 } 4457 4458 /* remove the previously added non-VLAN MAC filters */ 4459 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4460 } 4461 4462 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4463 4464 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4465 alluni = true; 4466 4467 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4468 allmulti = true; 4469 4470 /* Schedule the worker thread to take care of applying changes */ 4471 i40e_service_event_schedule(vsi->back); 4472 4473 if (ret) { 4474 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4475 goto error_pvid; 4476 } 4477 4478 /* The Port VLAN needs to be saved across resets the same as the 4479 * default LAN MAC address. 4480 */ 4481 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4482 4483 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4484 if (ret) { 4485 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4486 goto error_pvid; 4487 } 4488 4489 ret = 0; 4490 4491 error_pvid: 4492 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4493 return ret; 4494 } 4495 4496 /** 4497 * i40e_ndo_set_vf_bw 4498 * @netdev: network interface device structure 4499 * @vf_id: VF identifier 4500 * @min_tx_rate: Minimum Tx rate 4501 * @max_tx_rate: Maximum Tx rate 4502 * 4503 * configure VF Tx rate 4504 **/ 4505 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4506 int max_tx_rate) 4507 { 4508 struct i40e_netdev_priv *np = netdev_priv(netdev); 4509 struct i40e_pf *pf = np->vsi->back; 4510 struct i40e_vsi *vsi; 4511 struct i40e_vf *vf; 4512 int ret = 0; 4513 4514 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4515 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4516 return -EAGAIN; 4517 } 4518 4519 /* validate the request */ 4520 ret = i40e_validate_vf(pf, vf_id); 4521 if (ret) 4522 goto error; 4523 4524 if (min_tx_rate) { 4525 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4526 min_tx_rate, vf_id); 4527 ret = -EINVAL; 4528 goto error; 4529 } 4530 4531 vf = &pf->vf[vf_id]; 4532 vsi = pf->vsi[vf->lan_vsi_idx]; 4533 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4534 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4535 vf_id); 4536 ret = -EAGAIN; 4537 goto error; 4538 } 4539 4540 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4541 if (ret) 4542 goto error; 4543 4544 vf->tx_rate = max_tx_rate; 4545 error: 4546 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4547 return ret; 4548 } 4549 4550 /** 4551 * i40e_ndo_get_vf_config 4552 * @netdev: network interface device structure 4553 * @vf_id: VF identifier 4554 * @ivi: VF configuration structure 4555 * 4556 * return VF configuration 4557 **/ 4558 int i40e_ndo_get_vf_config(struct net_device *netdev, 4559 int vf_id, struct ifla_vf_info *ivi) 4560 { 4561 struct i40e_netdev_priv *np = netdev_priv(netdev); 4562 struct i40e_vsi *vsi = np->vsi; 4563 struct i40e_pf *pf = vsi->back; 4564 struct i40e_vf *vf; 4565 int ret = 0; 4566 4567 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4568 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4569 return -EAGAIN; 4570 } 4571 4572 /* validate the request */ 4573 ret = i40e_validate_vf(pf, vf_id); 4574 if (ret) 4575 goto error_param; 4576 4577 vf = &pf->vf[vf_id]; 4578 /* first vsi is always the LAN vsi */ 4579 vsi = pf->vsi[vf->lan_vsi_idx]; 4580 if (!vsi) { 4581 ret = -ENOENT; 4582 goto error_param; 4583 } 4584 4585 ivi->vf = vf_id; 4586 4587 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4588 4589 ivi->max_tx_rate = vf->tx_rate; 4590 ivi->min_tx_rate = 0; 4591 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4592 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4593 I40E_VLAN_PRIORITY_SHIFT; 4594 if (vf->link_forced == false) 4595 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4596 else if (vf->link_up == true) 4597 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4598 else 4599 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4600 ivi->spoofchk = vf->spoofchk; 4601 ivi->trusted = vf->trusted; 4602 ret = 0; 4603 4604 error_param: 4605 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4606 return ret; 4607 } 4608 4609 /** 4610 * i40e_ndo_set_vf_link_state 4611 * @netdev: network interface device structure 4612 * @vf_id: VF identifier 4613 * @link: required link state 4614 * 4615 * Set the link state of a specified VF, regardless of physical link state 4616 **/ 4617 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4618 { 4619 struct i40e_netdev_priv *np = netdev_priv(netdev); 4620 struct i40e_pf *pf = np->vsi->back; 4621 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4622 struct virtchnl_pf_event pfe; 4623 struct i40e_hw *hw = &pf->hw; 4624 struct i40e_vf *vf; 4625 int abs_vf_id; 4626 int ret = 0; 4627 4628 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4629 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4630 return -EAGAIN; 4631 } 4632 4633 /* validate the request */ 4634 if (vf_id >= pf->num_alloc_vfs) { 4635 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4636 ret = -EINVAL; 4637 goto error_out; 4638 } 4639 4640 vf = &pf->vf[vf_id]; 4641 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4642 4643 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4644 pfe.severity = PF_EVENT_SEVERITY_INFO; 4645 4646 switch (link) { 4647 case IFLA_VF_LINK_STATE_AUTO: 4648 vf->link_forced = false; 4649 i40e_set_vf_link_state(vf, &pfe, ls); 4650 break; 4651 case IFLA_VF_LINK_STATE_ENABLE: 4652 vf->link_forced = true; 4653 vf->link_up = true; 4654 i40e_set_vf_link_state(vf, &pfe, ls); 4655 break; 4656 case IFLA_VF_LINK_STATE_DISABLE: 4657 vf->link_forced = true; 4658 vf->link_up = false; 4659 i40e_set_vf_link_state(vf, &pfe, ls); 4660 break; 4661 default: 4662 ret = -EINVAL; 4663 goto error_out; 4664 } 4665 /* Notify the VF of its new link state */ 4666 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4667 0, (u8 *)&pfe, sizeof(pfe), NULL); 4668 4669 error_out: 4670 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4671 return ret; 4672 } 4673 4674 /** 4675 * i40e_ndo_set_vf_spoofchk 4676 * @netdev: network interface device structure 4677 * @vf_id: VF identifier 4678 * @enable: flag to enable or disable feature 4679 * 4680 * Enable or disable VF spoof checking 4681 **/ 4682 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4683 { 4684 struct i40e_netdev_priv *np = netdev_priv(netdev); 4685 struct i40e_vsi *vsi = np->vsi; 4686 struct i40e_pf *pf = vsi->back; 4687 struct i40e_vsi_context ctxt; 4688 struct i40e_hw *hw = &pf->hw; 4689 struct i40e_vf *vf; 4690 int ret = 0; 4691 4692 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4693 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4694 return -EAGAIN; 4695 } 4696 4697 /* validate the request */ 4698 if (vf_id >= pf->num_alloc_vfs) { 4699 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4700 ret = -EINVAL; 4701 goto out; 4702 } 4703 4704 vf = &(pf->vf[vf_id]); 4705 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4706 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4707 vf_id); 4708 ret = -EAGAIN; 4709 goto out; 4710 } 4711 4712 if (enable == vf->spoofchk) 4713 goto out; 4714 4715 vf->spoofchk = enable; 4716 memset(&ctxt, 0, sizeof(ctxt)); 4717 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4718 ctxt.pf_num = pf->hw.pf_id; 4719 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4720 if (enable) 4721 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4722 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4723 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4724 if (ret) { 4725 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4726 ret); 4727 ret = -EIO; 4728 } 4729 out: 4730 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4731 return ret; 4732 } 4733 4734 /** 4735 * i40e_ndo_set_vf_trust 4736 * @netdev: network interface device structure of the pf 4737 * @vf_id: VF identifier 4738 * @setting: trust setting 4739 * 4740 * Enable or disable VF trust setting 4741 **/ 4742 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4743 { 4744 struct i40e_netdev_priv *np = netdev_priv(netdev); 4745 struct i40e_pf *pf = np->vsi->back; 4746 struct i40e_vf *vf; 4747 int ret = 0; 4748 4749 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4750 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4751 return -EAGAIN; 4752 } 4753 4754 /* validate the request */ 4755 if (vf_id >= pf->num_alloc_vfs) { 4756 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4757 ret = -EINVAL; 4758 goto out; 4759 } 4760 4761 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4762 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4763 ret = -EINVAL; 4764 goto out; 4765 } 4766 4767 vf = &pf->vf[vf_id]; 4768 4769 if (setting == vf->trusted) 4770 goto out; 4771 4772 vf->trusted = setting; 4773 i40e_vc_reset_vf(vf, true); 4774 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4775 vf_id, setting ? "" : "un"); 4776 4777 if (vf->adq_enabled) { 4778 if (!vf->trusted) { 4779 dev_info(&pf->pdev->dev, 4780 "VF %u no longer Trusted, deleting all cloud filters\n", 4781 vf_id); 4782 i40e_del_all_cloud_filters(vf); 4783 } 4784 } 4785 4786 out: 4787 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4788 return ret; 4789 } 4790 4791 /** 4792 * i40e_get_vf_stats - populate some stats for the VF 4793 * @netdev: the netdev of the PF 4794 * @vf_id: the host OS identifier (0-127) 4795 * @vf_stats: pointer to the OS memory to be initialized 4796 */ 4797 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4798 struct ifla_vf_stats *vf_stats) 4799 { 4800 struct i40e_netdev_priv *np = netdev_priv(netdev); 4801 struct i40e_pf *pf = np->vsi->back; 4802 struct i40e_eth_stats *stats; 4803 struct i40e_vsi *vsi; 4804 struct i40e_vf *vf; 4805 4806 /* validate the request */ 4807 if (i40e_validate_vf(pf, vf_id)) 4808 return -EINVAL; 4809 4810 vf = &pf->vf[vf_id]; 4811 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4812 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4813 return -EBUSY; 4814 } 4815 4816 vsi = pf->vsi[vf->lan_vsi_idx]; 4817 if (!vsi) 4818 return -EINVAL; 4819 4820 i40e_update_eth_stats(vsi); 4821 stats = &vsi->eth_stats; 4822 4823 memset(vf_stats, 0, sizeof(*vf_stats)); 4824 4825 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4826 stats->rx_multicast; 4827 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4828 stats->tx_multicast; 4829 vf_stats->rx_bytes = stats->rx_bytes; 4830 vf_stats->tx_bytes = stats->tx_bytes; 4831 vf_stats->broadcast = stats->rx_broadcast; 4832 vf_stats->multicast = stats->rx_multicast; 4833 vf_stats->rx_dropped = stats->rx_discards; 4834 vf_stats->tx_dropped = stats->tx_discards; 4835 4836 return 0; 4837 } 4838