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 /* Bail out if VFs are disabled. */ 1540 if (test_bit(__I40E_VF_DISABLE, pf->state)) 1541 return true; 1542 1543 /* If VF is being reset already we don't need to continue. */ 1544 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1545 return true; 1546 1547 i40e_trigger_vf_reset(vf, flr); 1548 1549 /* poll VPGEN_VFRSTAT reg to make sure 1550 * that reset is complete 1551 */ 1552 for (i = 0; i < 10; i++) { 1553 /* VF reset requires driver to first reset the VF and then 1554 * poll the status register to make sure that the reset 1555 * completed successfully. Due to internal HW FIFO flushes, 1556 * we must wait 10ms before the register will be valid. 1557 */ 1558 usleep_range(10000, 20000); 1559 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1560 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1561 rsd = true; 1562 break; 1563 } 1564 } 1565 1566 if (flr) 1567 usleep_range(10000, 20000); 1568 1569 if (!rsd) 1570 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1571 vf->vf_id); 1572 usleep_range(10000, 20000); 1573 1574 /* On initial reset, we don't have any queues to disable */ 1575 if (vf->lan_vsi_idx != 0) 1576 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1577 1578 i40e_cleanup_reset_vf(vf); 1579 1580 i40e_flush(hw); 1581 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states); 1582 1583 return true; 1584 } 1585 1586 /** 1587 * i40e_reset_all_vfs 1588 * @pf: pointer to the PF structure 1589 * @flr: VFLR was issued or not 1590 * 1591 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1592 * VF, then do all the waiting in one chunk, and finally finish restoring each 1593 * VF after the wait. This is useful during PF routines which need to reset 1594 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1595 * 1596 * Returns true if any VFs were reset, and false otherwise. 1597 **/ 1598 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1599 { 1600 struct i40e_hw *hw = &pf->hw; 1601 struct i40e_vf *vf; 1602 int i, v; 1603 u32 reg; 1604 1605 /* If we don't have any VFs, then there is nothing to reset */ 1606 if (!pf->num_alloc_vfs) 1607 return false; 1608 1609 /* If VFs have been disabled, there is no need to reset */ 1610 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1611 return false; 1612 1613 /* Begin reset on all VFs at once */ 1614 for (v = 0; v < pf->num_alloc_vfs; v++) { 1615 vf = &pf->vf[v]; 1616 /* If VF is being reset no need to trigger reset again */ 1617 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1618 i40e_trigger_vf_reset(&pf->vf[v], flr); 1619 } 1620 1621 /* HW requires some time to make sure it can flush the FIFO for a VF 1622 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1623 * sequence to make sure that it has completed. We'll keep track of 1624 * the VFs using a simple iterator that increments once that VF has 1625 * finished resetting. 1626 */ 1627 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1628 usleep_range(10000, 20000); 1629 1630 /* Check each VF in sequence, beginning with the VF to fail 1631 * the previous check. 1632 */ 1633 while (v < pf->num_alloc_vfs) { 1634 vf = &pf->vf[v]; 1635 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) { 1636 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1637 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1638 break; 1639 } 1640 1641 /* If the current VF has finished resetting, move on 1642 * to the next VF in sequence. 1643 */ 1644 v++; 1645 } 1646 } 1647 1648 if (flr) 1649 usleep_range(10000, 20000); 1650 1651 /* Display a warning if at least one VF didn't manage to reset in 1652 * time, but continue on with the operation. 1653 */ 1654 if (v < pf->num_alloc_vfs) 1655 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1656 pf->vf[v].vf_id); 1657 usleep_range(10000, 20000); 1658 1659 /* Begin disabling all the rings associated with VFs, but do not wait 1660 * between each VF. 1661 */ 1662 for (v = 0; v < pf->num_alloc_vfs; v++) { 1663 /* On initial reset, we don't have any queues to disable */ 1664 if (pf->vf[v].lan_vsi_idx == 0) 1665 continue; 1666 1667 /* If VF is reset in another thread just continue */ 1668 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1669 continue; 1670 1671 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1672 } 1673 1674 /* Now that we've notified HW to disable all of the VF rings, wait 1675 * until they finish. 1676 */ 1677 for (v = 0; v < pf->num_alloc_vfs; v++) { 1678 /* On initial reset, we don't have any queues to disable */ 1679 if (pf->vf[v].lan_vsi_idx == 0) 1680 continue; 1681 1682 /* If VF is reset in another thread just continue */ 1683 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1684 continue; 1685 1686 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1687 } 1688 1689 /* Hw may need up to 50ms to finish disabling the RX queues. We 1690 * minimize the wait by delaying only once for all VFs. 1691 */ 1692 mdelay(50); 1693 1694 /* Finish the reset on each VF */ 1695 for (v = 0; v < pf->num_alloc_vfs; v++) { 1696 /* If VF is reset in another thread just continue */ 1697 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) 1698 continue; 1699 1700 i40e_cleanup_reset_vf(&pf->vf[v]); 1701 } 1702 1703 i40e_flush(hw); 1704 clear_bit(__I40E_VF_DISABLE, pf->state); 1705 1706 return true; 1707 } 1708 1709 /** 1710 * i40e_free_vfs 1711 * @pf: pointer to the PF structure 1712 * 1713 * free VF resources 1714 **/ 1715 void i40e_free_vfs(struct i40e_pf *pf) 1716 { 1717 struct i40e_hw *hw = &pf->hw; 1718 u32 reg_idx, bit_idx; 1719 int i, tmp, vf_id; 1720 1721 if (!pf->vf) 1722 return; 1723 1724 set_bit(__I40E_VFS_RELEASING, pf->state); 1725 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1726 usleep_range(1000, 2000); 1727 1728 i40e_notify_client_of_vf_enable(pf, 0); 1729 1730 /* Disable IOV before freeing resources. This lets any VF drivers 1731 * running in the host get themselves cleaned up before we yank 1732 * the carpet out from underneath their feet. 1733 */ 1734 if (!pci_vfs_assigned(pf->pdev)) 1735 pci_disable_sriov(pf->pdev); 1736 else 1737 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1738 1739 /* Amortize wait time by stopping all VFs at the same time */ 1740 for (i = 0; i < pf->num_alloc_vfs; i++) { 1741 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1742 continue; 1743 1744 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1745 } 1746 1747 for (i = 0; i < pf->num_alloc_vfs; i++) { 1748 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1749 continue; 1750 1751 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1752 } 1753 1754 /* free up VF resources */ 1755 tmp = pf->num_alloc_vfs; 1756 pf->num_alloc_vfs = 0; 1757 for (i = 0; i < tmp; i++) { 1758 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1759 i40e_free_vf_res(&pf->vf[i]); 1760 /* disable qp mappings */ 1761 i40e_disable_vf_mappings(&pf->vf[i]); 1762 } 1763 1764 kfree(pf->vf); 1765 pf->vf = NULL; 1766 1767 /* This check is for when the driver is unloaded while VFs are 1768 * assigned. Setting the number of VFs to 0 through sysfs is caught 1769 * before this function ever gets called. 1770 */ 1771 if (!pci_vfs_assigned(pf->pdev)) { 1772 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1773 * work correctly when SR-IOV gets re-enabled. 1774 */ 1775 for (vf_id = 0; vf_id < tmp; vf_id++) { 1776 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1777 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1778 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1779 } 1780 } 1781 clear_bit(__I40E_VF_DISABLE, pf->state); 1782 clear_bit(__I40E_VFS_RELEASING, pf->state); 1783 } 1784 1785 #ifdef CONFIG_PCI_IOV 1786 /** 1787 * i40e_alloc_vfs 1788 * @pf: pointer to the PF structure 1789 * @num_alloc_vfs: number of VFs to allocate 1790 * 1791 * allocate VF resources 1792 **/ 1793 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1794 { 1795 struct i40e_vf *vfs; 1796 int i, ret = 0; 1797 1798 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1799 i40e_irq_dynamic_disable_icr0(pf); 1800 1801 /* Check to see if we're just allocating resources for extant VFs */ 1802 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1803 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1804 if (ret) { 1805 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1806 pf->num_alloc_vfs = 0; 1807 goto err_iov; 1808 } 1809 } 1810 /* allocate memory */ 1811 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1812 if (!vfs) { 1813 ret = -ENOMEM; 1814 goto err_alloc; 1815 } 1816 pf->vf = vfs; 1817 1818 /* apply default profile */ 1819 for (i = 0; i < num_alloc_vfs; i++) { 1820 vfs[i].pf = pf; 1821 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1822 vfs[i].vf_id = i; 1823 1824 /* assign default capabilities */ 1825 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1826 vfs[i].spoofchk = true; 1827 1828 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1829 1830 } 1831 pf->num_alloc_vfs = num_alloc_vfs; 1832 1833 /* VF resources get allocated during reset */ 1834 i40e_reset_all_vfs(pf, false); 1835 1836 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1837 1838 err_alloc: 1839 if (ret) 1840 i40e_free_vfs(pf); 1841 err_iov: 1842 /* Re-enable interrupt 0. */ 1843 i40e_irq_dynamic_enable_icr0(pf); 1844 return ret; 1845 } 1846 1847 #endif 1848 /** 1849 * i40e_pci_sriov_enable 1850 * @pdev: pointer to a pci_dev structure 1851 * @num_vfs: number of VFs to allocate 1852 * 1853 * Enable or change the number of VFs 1854 **/ 1855 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1856 { 1857 #ifdef CONFIG_PCI_IOV 1858 struct i40e_pf *pf = pci_get_drvdata(pdev); 1859 int pre_existing_vfs = pci_num_vf(pdev); 1860 int err = 0; 1861 1862 if (test_bit(__I40E_TESTING, pf->state)) { 1863 dev_warn(&pdev->dev, 1864 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1865 err = -EPERM; 1866 goto err_out; 1867 } 1868 1869 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1870 i40e_free_vfs(pf); 1871 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1872 goto out; 1873 1874 if (num_vfs > pf->num_req_vfs) { 1875 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1876 num_vfs, pf->num_req_vfs); 1877 err = -EPERM; 1878 goto err_out; 1879 } 1880 1881 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1882 err = i40e_alloc_vfs(pf, num_vfs); 1883 if (err) { 1884 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1885 goto err_out; 1886 } 1887 1888 out: 1889 return num_vfs; 1890 1891 err_out: 1892 return err; 1893 #endif 1894 return 0; 1895 } 1896 1897 /** 1898 * i40e_pci_sriov_configure 1899 * @pdev: pointer to a pci_dev structure 1900 * @num_vfs: number of VFs to allocate 1901 * 1902 * Enable or change the number of VFs. Called when the user updates the number 1903 * of VFs in sysfs. 1904 **/ 1905 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1906 { 1907 struct i40e_pf *pf = pci_get_drvdata(pdev); 1908 int ret = 0; 1909 1910 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1911 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1912 return -EAGAIN; 1913 } 1914 1915 if (num_vfs) { 1916 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1917 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1918 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1919 } 1920 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1921 goto sriov_configure_out; 1922 } 1923 1924 if (!pci_vfs_assigned(pf->pdev)) { 1925 i40e_free_vfs(pf); 1926 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1927 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1928 } else { 1929 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1930 ret = -EINVAL; 1931 goto sriov_configure_out; 1932 } 1933 sriov_configure_out: 1934 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1935 return ret; 1936 } 1937 1938 /***********************virtual channel routines******************/ 1939 1940 /** 1941 * i40e_vc_send_msg_to_vf 1942 * @vf: pointer to the VF info 1943 * @v_opcode: virtual channel opcode 1944 * @v_retval: virtual channel return value 1945 * @msg: pointer to the msg buffer 1946 * @msglen: msg length 1947 * 1948 * send msg to VF 1949 **/ 1950 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1951 u32 v_retval, u8 *msg, u16 msglen) 1952 { 1953 struct i40e_pf *pf; 1954 struct i40e_hw *hw; 1955 int abs_vf_id; 1956 i40e_status aq_ret; 1957 1958 /* validate the request */ 1959 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1960 return -EINVAL; 1961 1962 pf = vf->pf; 1963 hw = &pf->hw; 1964 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 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_resp_to_vf 1980 * @vf: pointer to the VF info 1981 * @opcode: operation code 1982 * @retval: return value 1983 * 1984 * send resp msg to VF 1985 **/ 1986 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1987 enum virtchnl_ops opcode, 1988 i40e_status retval) 1989 { 1990 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1991 } 1992 1993 /** 1994 * i40e_sync_vf_state 1995 * @vf: pointer to the VF info 1996 * @state: VF state 1997 * 1998 * Called from a VF message to synchronize the service with a potential 1999 * VF reset state 2000 **/ 2001 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 2002 { 2003 int i; 2004 2005 /* When handling some messages, it needs VF state to be set. 2006 * It is possible that this flag is cleared during VF reset, 2007 * so there is a need to wait until the end of the reset to 2008 * handle the request message correctly. 2009 */ 2010 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 2011 if (test_bit(state, &vf->vf_states)) 2012 return true; 2013 usleep_range(10000, 20000); 2014 } 2015 2016 return test_bit(state, &vf->vf_states); 2017 } 2018 2019 /** 2020 * i40e_vc_get_version_msg 2021 * @vf: pointer to the VF info 2022 * @msg: pointer to the msg buffer 2023 * 2024 * called from the VF to request the API version used by the PF 2025 **/ 2026 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2027 { 2028 struct virtchnl_version_info info = { 2029 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2030 }; 2031 2032 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2033 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2034 if (VF_IS_V10(&vf->vf_ver)) 2035 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2036 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2037 I40E_SUCCESS, (u8 *)&info, 2038 sizeof(struct virtchnl_version_info)); 2039 } 2040 2041 /** 2042 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2043 * @vf: pointer to VF structure 2044 **/ 2045 static void i40e_del_qch(struct i40e_vf *vf) 2046 { 2047 struct i40e_pf *pf = vf->pf; 2048 int i; 2049 2050 /* first element in the array belongs to primary VF VSI and we shouldn't 2051 * delete it. We should however delete the rest of the VSIs created 2052 */ 2053 for (i = 1; i < vf->num_tc; i++) { 2054 if (vf->ch[i].vsi_idx) { 2055 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2056 vf->ch[i].vsi_idx = 0; 2057 vf->ch[i].vsi_id = 0; 2058 } 2059 } 2060 } 2061 2062 /** 2063 * i40e_vc_get_max_frame_size 2064 * @vf: pointer to the VF 2065 * 2066 * Max frame size is determined based on the current port's max frame size and 2067 * whether a port VLAN is configured on this VF. The VF is not aware whether 2068 * it's in a port VLAN so the PF needs to account for this in max frame size 2069 * checks and sending the max frame size to the VF. 2070 **/ 2071 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf) 2072 { 2073 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size; 2074 2075 if (vf->port_vlan_id) 2076 max_frame_size -= VLAN_HLEN; 2077 2078 return max_frame_size; 2079 } 2080 2081 /** 2082 * i40e_vc_get_vf_resources_msg 2083 * @vf: pointer to the VF info 2084 * @msg: pointer to the msg buffer 2085 * 2086 * called from the VF to request its resources 2087 **/ 2088 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2089 { 2090 struct virtchnl_vf_resource *vfres = NULL; 2091 struct i40e_pf *pf = vf->pf; 2092 i40e_status aq_ret = 0; 2093 struct i40e_vsi *vsi; 2094 int num_vsis = 1; 2095 size_t len = 0; 2096 int ret; 2097 2098 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2099 aq_ret = I40E_ERR_PARAM; 2100 goto err; 2101 } 2102 2103 len = struct_size(vfres, vsi_res, num_vsis); 2104 vfres = kzalloc(len, GFP_KERNEL); 2105 if (!vfres) { 2106 aq_ret = I40E_ERR_NO_MEMORY; 2107 len = 0; 2108 goto err; 2109 } 2110 if (VF_IS_V11(&vf->vf_ver)) 2111 vf->driver_caps = *(u32 *)msg; 2112 else 2113 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2114 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2115 VIRTCHNL_VF_OFFLOAD_VLAN; 2116 2117 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2118 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2119 vsi = pf->vsi[vf->lan_vsi_idx]; 2120 if (!vsi->info.pvid) 2121 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2122 2123 if (i40e_vf_client_capable(pf, vf->vf_id) && 2124 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 2125 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 2126 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2127 } else { 2128 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2129 } 2130 2131 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2132 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2133 } else { 2134 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2135 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2136 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2137 else 2138 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2139 } 2140 2141 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2142 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2143 vfres->vf_cap_flags |= 2144 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2145 } 2146 2147 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2148 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2149 2150 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2151 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2152 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2153 2154 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2155 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2156 dev_err(&pf->pdev->dev, 2157 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2158 vf->vf_id); 2159 aq_ret = I40E_ERR_PARAM; 2160 goto err; 2161 } 2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2163 } 2164 2165 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2166 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2167 vfres->vf_cap_flags |= 2168 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2169 } 2170 2171 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2172 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2173 2174 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2175 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2176 2177 vfres->num_vsis = num_vsis; 2178 vfres->num_queue_pairs = vf->num_queue_pairs; 2179 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2180 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2181 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2182 vfres->max_mtu = i40e_vc_get_max_frame_size(vf); 2183 2184 if (vf->lan_vsi_idx) { 2185 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2186 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2187 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2188 /* VFs only use TC 0 */ 2189 vfres->vsi_res[0].qset_handle 2190 = le16_to_cpu(vsi->info.qs_handle[0]); 2191 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) { 2192 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2193 eth_zero_addr(vf->default_lan_addr.addr); 2194 } 2195 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2196 vf->default_lan_addr.addr); 2197 } 2198 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2199 2200 err: 2201 /* send the response back to the VF */ 2202 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2203 aq_ret, (u8 *)vfres, len); 2204 2205 kfree(vfres); 2206 return ret; 2207 } 2208 2209 /** 2210 * i40e_vc_config_promiscuous_mode_msg 2211 * @vf: pointer to the VF info 2212 * @msg: pointer to the msg buffer 2213 * 2214 * called from the VF to configure the promiscuous mode of 2215 * VF vsis 2216 **/ 2217 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2218 { 2219 struct virtchnl_promisc_info *info = 2220 (struct virtchnl_promisc_info *)msg; 2221 struct i40e_pf *pf = vf->pf; 2222 i40e_status aq_ret = 0; 2223 bool allmulti = false; 2224 bool alluni = false; 2225 2226 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2227 aq_ret = I40E_ERR_PARAM; 2228 goto err_out; 2229 } 2230 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2231 dev_err(&pf->pdev->dev, 2232 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2233 vf->vf_id); 2234 2235 /* Lie to the VF on purpose, because this is an error we can 2236 * ignore. Unprivileged VF is not a virtual channel error. 2237 */ 2238 aq_ret = 0; 2239 goto err_out; 2240 } 2241 2242 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2243 aq_ret = I40E_ERR_PARAM; 2244 goto err_out; 2245 } 2246 2247 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2248 aq_ret = I40E_ERR_PARAM; 2249 goto err_out; 2250 } 2251 2252 /* Multicast promiscuous handling*/ 2253 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2254 allmulti = true; 2255 2256 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2257 alluni = true; 2258 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2259 alluni); 2260 if (aq_ret) 2261 goto err_out; 2262 2263 if (allmulti) { 2264 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2265 &vf->vf_states)) 2266 dev_info(&pf->pdev->dev, 2267 "VF %d successfully set multicast promiscuous mode\n", 2268 vf->vf_id); 2269 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2270 &vf->vf_states)) 2271 dev_info(&pf->pdev->dev, 2272 "VF %d successfully unset multicast promiscuous mode\n", 2273 vf->vf_id); 2274 2275 if (alluni) { 2276 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2277 &vf->vf_states)) 2278 dev_info(&pf->pdev->dev, 2279 "VF %d successfully set unicast promiscuous mode\n", 2280 vf->vf_id); 2281 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2282 &vf->vf_states)) 2283 dev_info(&pf->pdev->dev, 2284 "VF %d successfully unset unicast promiscuous mode\n", 2285 vf->vf_id); 2286 2287 err_out: 2288 /* send the response to the VF */ 2289 return i40e_vc_send_resp_to_vf(vf, 2290 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2291 aq_ret); 2292 } 2293 2294 /** 2295 * i40e_vc_config_queues_msg 2296 * @vf: pointer to the VF info 2297 * @msg: pointer to the msg buffer 2298 * 2299 * called from the VF to configure the rx/tx 2300 * queues 2301 **/ 2302 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2303 { 2304 struct virtchnl_vsi_queue_config_info *qci = 2305 (struct virtchnl_vsi_queue_config_info *)msg; 2306 struct virtchnl_queue_pair_info *qpi; 2307 u16 vsi_id, vsi_queue_id = 0; 2308 struct i40e_pf *pf = vf->pf; 2309 i40e_status aq_ret = 0; 2310 int i, j = 0, idx = 0; 2311 struct i40e_vsi *vsi; 2312 u16 num_qps_all = 0; 2313 2314 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2315 aq_ret = I40E_ERR_PARAM; 2316 goto error_param; 2317 } 2318 2319 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2320 aq_ret = I40E_ERR_PARAM; 2321 goto error_param; 2322 } 2323 2324 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2325 aq_ret = I40E_ERR_PARAM; 2326 goto error_param; 2327 } 2328 2329 if (vf->adq_enabled) { 2330 for (i = 0; i < vf->num_tc; i++) 2331 num_qps_all += vf->ch[i].num_qps; 2332 if (num_qps_all != qci->num_queue_pairs) { 2333 aq_ret = I40E_ERR_PARAM; 2334 goto error_param; 2335 } 2336 } 2337 2338 vsi_id = qci->vsi_id; 2339 2340 for (i = 0; i < qci->num_queue_pairs; i++) { 2341 qpi = &qci->qpair[i]; 2342 2343 if (!vf->adq_enabled) { 2344 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2345 qpi->txq.queue_id)) { 2346 aq_ret = I40E_ERR_PARAM; 2347 goto error_param; 2348 } 2349 2350 vsi_queue_id = qpi->txq.queue_id; 2351 2352 if (qpi->txq.vsi_id != qci->vsi_id || 2353 qpi->rxq.vsi_id != qci->vsi_id || 2354 qpi->rxq.queue_id != vsi_queue_id) { 2355 aq_ret = I40E_ERR_PARAM; 2356 goto error_param; 2357 } 2358 } 2359 2360 if (vf->adq_enabled) { 2361 if (idx >= ARRAY_SIZE(vf->ch)) { 2362 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2363 goto error_param; 2364 } 2365 vsi_id = vf->ch[idx].vsi_id; 2366 } 2367 2368 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2369 &qpi->rxq) || 2370 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2371 &qpi->txq)) { 2372 aq_ret = I40E_ERR_PARAM; 2373 goto error_param; 2374 } 2375 2376 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2377 * VF does not know about these additional VSIs and all 2378 * it cares is about its own queues. PF configures these queues 2379 * to its appropriate VSIs based on TC mapping 2380 */ 2381 if (vf->adq_enabled) { 2382 if (idx >= ARRAY_SIZE(vf->ch)) { 2383 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2384 goto error_param; 2385 } 2386 if (j == (vf->ch[idx].num_qps - 1)) { 2387 idx++; 2388 j = 0; /* resetting the queue count */ 2389 vsi_queue_id = 0; 2390 } else { 2391 j++; 2392 vsi_queue_id++; 2393 } 2394 } 2395 } 2396 /* set vsi num_queue_pairs in use to num configured by VF */ 2397 if (!vf->adq_enabled) { 2398 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2399 qci->num_queue_pairs; 2400 } else { 2401 for (i = 0; i < vf->num_tc; i++) { 2402 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2403 vsi->num_queue_pairs = vf->ch[i].num_qps; 2404 2405 if (i40e_update_adq_vsi_queues(vsi, i)) { 2406 aq_ret = I40E_ERR_CONFIG; 2407 goto error_param; 2408 } 2409 } 2410 } 2411 2412 error_param: 2413 /* send the response to the VF */ 2414 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2415 aq_ret); 2416 } 2417 2418 /** 2419 * i40e_validate_queue_map - check queue map is valid 2420 * @vf: the VF structure pointer 2421 * @vsi_id: vsi id 2422 * @queuemap: Tx or Rx queue map 2423 * 2424 * check if Tx or Rx queue map is valid 2425 **/ 2426 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2427 unsigned long queuemap) 2428 { 2429 u16 vsi_queue_id, queue_id; 2430 2431 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2432 if (vf->adq_enabled) { 2433 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2434 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2435 } else { 2436 queue_id = vsi_queue_id; 2437 } 2438 2439 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2440 return -EINVAL; 2441 } 2442 2443 return 0; 2444 } 2445 2446 /** 2447 * i40e_vc_config_irq_map_msg 2448 * @vf: pointer to the VF info 2449 * @msg: pointer to the msg buffer 2450 * 2451 * called from the VF to configure the irq to 2452 * queue map 2453 **/ 2454 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2455 { 2456 struct virtchnl_irq_map_info *irqmap_info = 2457 (struct virtchnl_irq_map_info *)msg; 2458 struct virtchnl_vector_map *map; 2459 u16 vsi_id; 2460 i40e_status aq_ret = 0; 2461 int i; 2462 2463 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2464 aq_ret = I40E_ERR_PARAM; 2465 goto error_param; 2466 } 2467 2468 if (irqmap_info->num_vectors > 2469 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2470 aq_ret = I40E_ERR_PARAM; 2471 goto error_param; 2472 } 2473 2474 for (i = 0; i < irqmap_info->num_vectors; i++) { 2475 map = &irqmap_info->vecmap[i]; 2476 /* validate msg params */ 2477 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2478 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2479 aq_ret = I40E_ERR_PARAM; 2480 goto error_param; 2481 } 2482 vsi_id = map->vsi_id; 2483 2484 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2485 aq_ret = I40E_ERR_PARAM; 2486 goto error_param; 2487 } 2488 2489 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2490 aq_ret = I40E_ERR_PARAM; 2491 goto error_param; 2492 } 2493 2494 i40e_config_irq_link_list(vf, vsi_id, map); 2495 } 2496 error_param: 2497 /* send the response to the VF */ 2498 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2499 aq_ret); 2500 } 2501 2502 /** 2503 * i40e_ctrl_vf_tx_rings 2504 * @vsi: the SRIOV VSI being configured 2505 * @q_map: bit map of the queues to be enabled 2506 * @enable: start or stop the queue 2507 **/ 2508 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2509 bool enable) 2510 { 2511 struct i40e_pf *pf = vsi->back; 2512 int ret = 0; 2513 u16 q_id; 2514 2515 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2516 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2517 vsi->base_queue + q_id, 2518 false /*is xdp*/, enable); 2519 if (ret) 2520 break; 2521 } 2522 return ret; 2523 } 2524 2525 /** 2526 * i40e_ctrl_vf_rx_rings 2527 * @vsi: the SRIOV VSI being configured 2528 * @q_map: bit map of the queues to be enabled 2529 * @enable: start or stop the queue 2530 **/ 2531 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2532 bool enable) 2533 { 2534 struct i40e_pf *pf = vsi->back; 2535 int ret = 0; 2536 u16 q_id; 2537 2538 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2539 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2540 enable); 2541 if (ret) 2542 break; 2543 } 2544 return ret; 2545 } 2546 2547 /** 2548 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2549 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2550 * 2551 * Returns true if validation was successful, else false. 2552 */ 2553 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2554 { 2555 if ((!vqs->rx_queues && !vqs->tx_queues) || 2556 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2557 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2558 return false; 2559 2560 return true; 2561 } 2562 2563 /** 2564 * i40e_vc_enable_queues_msg 2565 * @vf: pointer to the VF info 2566 * @msg: pointer to the msg buffer 2567 * 2568 * called from the VF to enable all or specific queue(s) 2569 **/ 2570 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2571 { 2572 struct virtchnl_queue_select *vqs = 2573 (struct virtchnl_queue_select *)msg; 2574 struct i40e_pf *pf = vf->pf; 2575 i40e_status aq_ret = 0; 2576 int i; 2577 2578 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2579 aq_ret = I40E_ERR_PARAM; 2580 goto error_param; 2581 } 2582 2583 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2584 aq_ret = I40E_ERR_PARAM; 2585 goto error_param; 2586 } 2587 2588 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2589 aq_ret = I40E_ERR_PARAM; 2590 goto error_param; 2591 } 2592 2593 /* Use the queue bit map sent by the VF */ 2594 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2595 true)) { 2596 aq_ret = I40E_ERR_TIMEOUT; 2597 goto error_param; 2598 } 2599 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2600 true)) { 2601 aq_ret = I40E_ERR_TIMEOUT; 2602 goto error_param; 2603 } 2604 2605 /* need to start the rings for additional ADq VSI's as well */ 2606 if (vf->adq_enabled) { 2607 /* zero belongs to LAN VSI */ 2608 for (i = 1; i < vf->num_tc; i++) { 2609 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2610 aq_ret = I40E_ERR_TIMEOUT; 2611 } 2612 } 2613 2614 error_param: 2615 /* send the response to the VF */ 2616 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2617 aq_ret); 2618 } 2619 2620 /** 2621 * i40e_vc_disable_queues_msg 2622 * @vf: pointer to the VF info 2623 * @msg: pointer to the msg buffer 2624 * 2625 * called from the VF to disable all or specific 2626 * queue(s) 2627 **/ 2628 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2629 { 2630 struct virtchnl_queue_select *vqs = 2631 (struct virtchnl_queue_select *)msg; 2632 struct i40e_pf *pf = vf->pf; 2633 i40e_status aq_ret = 0; 2634 2635 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2636 aq_ret = I40E_ERR_PARAM; 2637 goto error_param; 2638 } 2639 2640 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2641 aq_ret = I40E_ERR_PARAM; 2642 goto error_param; 2643 } 2644 2645 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2646 aq_ret = I40E_ERR_PARAM; 2647 goto error_param; 2648 } 2649 2650 /* Use the queue bit map sent by the VF */ 2651 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2652 false)) { 2653 aq_ret = I40E_ERR_TIMEOUT; 2654 goto error_param; 2655 } 2656 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2657 false)) { 2658 aq_ret = I40E_ERR_TIMEOUT; 2659 goto error_param; 2660 } 2661 error_param: 2662 /* send the response to the VF */ 2663 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2664 aq_ret); 2665 } 2666 2667 /** 2668 * i40e_check_enough_queue - find big enough queue number 2669 * @vf: pointer to the VF info 2670 * @needed: the number of items needed 2671 * 2672 * Returns the base item index of the queue, or negative for error 2673 **/ 2674 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2675 { 2676 unsigned int i, cur_queues, more, pool_size; 2677 struct i40e_lump_tracking *pile; 2678 struct i40e_pf *pf = vf->pf; 2679 struct i40e_vsi *vsi; 2680 2681 vsi = pf->vsi[vf->lan_vsi_idx]; 2682 cur_queues = vsi->alloc_queue_pairs; 2683 2684 /* if current allocated queues are enough for need */ 2685 if (cur_queues >= needed) 2686 return vsi->base_queue; 2687 2688 pile = pf->qp_pile; 2689 if (cur_queues > 0) { 2690 /* if the allocated queues are not zero 2691 * just check if there are enough queues for more 2692 * behind the allocated queues. 2693 */ 2694 more = needed - cur_queues; 2695 for (i = vsi->base_queue + cur_queues; 2696 i < pile->num_entries; i++) { 2697 if (pile->list[i] & I40E_PILE_VALID_BIT) 2698 break; 2699 2700 if (more-- == 1) 2701 /* there is enough */ 2702 return vsi->base_queue; 2703 } 2704 } 2705 2706 pool_size = 0; 2707 for (i = 0; i < pile->num_entries; i++) { 2708 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2709 pool_size = 0; 2710 continue; 2711 } 2712 if (needed <= ++pool_size) 2713 /* there is enough */ 2714 return i; 2715 } 2716 2717 return -ENOMEM; 2718 } 2719 2720 /** 2721 * i40e_vc_request_queues_msg 2722 * @vf: pointer to the VF info 2723 * @msg: pointer to the msg buffer 2724 * 2725 * VFs get a default number of queues but can use this message to request a 2726 * different number. If the request is successful, PF will reset the VF and 2727 * return 0. If unsuccessful, PF will send message informing VF of number of 2728 * available queues and return result of sending VF a message. 2729 **/ 2730 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2731 { 2732 struct virtchnl_vf_res_request *vfres = 2733 (struct virtchnl_vf_res_request *)msg; 2734 u16 req_pairs = vfres->num_queue_pairs; 2735 u8 cur_pairs = vf->num_queue_pairs; 2736 struct i40e_pf *pf = vf->pf; 2737 2738 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2739 return -EINVAL; 2740 2741 if (req_pairs > I40E_MAX_VF_QUEUES) { 2742 dev_err(&pf->pdev->dev, 2743 "VF %d tried to request more than %d queues.\n", 2744 vf->vf_id, 2745 I40E_MAX_VF_QUEUES); 2746 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2747 } else if (req_pairs - cur_pairs > pf->queues_left) { 2748 dev_warn(&pf->pdev->dev, 2749 "VF %d requested %d more queues, but only %d left.\n", 2750 vf->vf_id, 2751 req_pairs - cur_pairs, 2752 pf->queues_left); 2753 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2754 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2755 dev_warn(&pf->pdev->dev, 2756 "VF %d requested %d more queues, but there is not enough for it.\n", 2757 vf->vf_id, 2758 req_pairs - cur_pairs); 2759 vfres->num_queue_pairs = cur_pairs; 2760 } else { 2761 /* successful request */ 2762 vf->num_req_queues = req_pairs; 2763 i40e_vc_reset_vf(vf, true); 2764 return 0; 2765 } 2766 2767 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2768 (u8 *)vfres, sizeof(*vfres)); 2769 } 2770 2771 /** 2772 * i40e_vc_get_stats_msg 2773 * @vf: pointer to the VF info 2774 * @msg: pointer to the msg buffer 2775 * 2776 * called from the VF to get vsi stats 2777 **/ 2778 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2779 { 2780 struct virtchnl_queue_select *vqs = 2781 (struct virtchnl_queue_select *)msg; 2782 struct i40e_pf *pf = vf->pf; 2783 struct i40e_eth_stats stats; 2784 i40e_status aq_ret = 0; 2785 struct i40e_vsi *vsi; 2786 2787 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2788 2789 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2790 aq_ret = I40E_ERR_PARAM; 2791 goto error_param; 2792 } 2793 2794 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2795 aq_ret = I40E_ERR_PARAM; 2796 goto error_param; 2797 } 2798 2799 vsi = pf->vsi[vf->lan_vsi_idx]; 2800 if (!vsi) { 2801 aq_ret = I40E_ERR_PARAM; 2802 goto error_param; 2803 } 2804 i40e_update_eth_stats(vsi); 2805 stats = vsi->eth_stats; 2806 2807 error_param: 2808 /* send the response back to the VF */ 2809 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2810 (u8 *)&stats, sizeof(stats)); 2811 } 2812 2813 #define I40E_MAX_MACVLAN_PER_HW 3072 2814 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2815 (num_ports)) 2816 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2817 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2818 */ 2819 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2820 #define I40E_VC_MAX_VLAN_PER_VF 16 2821 2822 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2823 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2824 typeof(num_ports) num_ports_ = (num_ports); \ 2825 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2826 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2827 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2828 /** 2829 * i40e_check_vf_permission 2830 * @vf: pointer to the VF info 2831 * @al: MAC address list from virtchnl 2832 * 2833 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2834 * if any address in the list is not valid. Checks the following conditions: 2835 * 2836 * 1) broadcast and zero addresses are never valid 2837 * 2) unicast addresses are not allowed if the VMM has administratively set 2838 * the VF MAC address, unless the VF is marked as privileged. 2839 * 3) There is enough space to add all the addresses. 2840 * 2841 * Note that to guarantee consistency, it is expected this function be called 2842 * while holding the mac_filter_hash_lock, as otherwise the current number of 2843 * addresses might not be accurate. 2844 **/ 2845 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2846 struct virtchnl_ether_addr_list *al) 2847 { 2848 struct i40e_pf *pf = vf->pf; 2849 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2850 struct i40e_hw *hw = &pf->hw; 2851 int mac2add_cnt = 0; 2852 int i; 2853 2854 for (i = 0; i < al->num_elements; i++) { 2855 struct i40e_mac_filter *f; 2856 u8 *addr = al->list[i].addr; 2857 2858 if (is_broadcast_ether_addr(addr) || 2859 is_zero_ether_addr(addr)) { 2860 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2861 addr); 2862 return I40E_ERR_INVALID_MAC_ADDR; 2863 } 2864 2865 /* If the host VMM administrator has set the VF MAC address 2866 * administratively via the ndo_set_vf_mac command then deny 2867 * permission to the VF to add or delete unicast MAC addresses. 2868 * Unless the VF is privileged and then it can do whatever. 2869 * The VF may request to set the MAC address filter already 2870 * assigned to it so do not return an error in that case. 2871 */ 2872 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2873 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2874 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2875 dev_err(&pf->pdev->dev, 2876 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2877 return -EPERM; 2878 } 2879 2880 /*count filters that really will be added*/ 2881 f = i40e_find_mac(vsi, addr); 2882 if (!f) 2883 ++mac2add_cnt; 2884 } 2885 2886 /* If this VF is not privileged, then we can't add more than a limited 2887 * number of addresses. Check to make sure that the additions do not 2888 * push us over the limit. 2889 */ 2890 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2891 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2892 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2893 dev_err(&pf->pdev->dev, 2894 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2895 return -EPERM; 2896 } 2897 /* If this VF is trusted, it can use more resources than untrusted. 2898 * However to ensure that every trusted VF has appropriate number of 2899 * resources, divide whole pool of resources per port and then across 2900 * all VFs. 2901 */ 2902 } else { 2903 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2904 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2905 hw->num_ports)) { 2906 dev_err(&pf->pdev->dev, 2907 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2908 return -EPERM; 2909 } 2910 } 2911 return 0; 2912 } 2913 2914 /** 2915 * i40e_vc_add_mac_addr_msg 2916 * @vf: pointer to the VF info 2917 * @msg: pointer to the msg buffer 2918 * 2919 * add guest mac address filter 2920 **/ 2921 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2922 { 2923 struct virtchnl_ether_addr_list *al = 2924 (struct virtchnl_ether_addr_list *)msg; 2925 struct i40e_pf *pf = vf->pf; 2926 struct i40e_vsi *vsi = NULL; 2927 i40e_status ret = 0; 2928 int i; 2929 2930 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2931 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2932 ret = I40E_ERR_PARAM; 2933 goto error_param; 2934 } 2935 2936 vsi = pf->vsi[vf->lan_vsi_idx]; 2937 2938 /* Lock once, because all function inside for loop accesses VSI's 2939 * MAC filter list which needs to be protected using same lock. 2940 */ 2941 spin_lock_bh(&vsi->mac_filter_hash_lock); 2942 2943 ret = i40e_check_vf_permission(vf, al); 2944 if (ret) { 2945 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2946 goto error_param; 2947 } 2948 2949 /* add new addresses to the list */ 2950 for (i = 0; i < al->num_elements; i++) { 2951 struct i40e_mac_filter *f; 2952 2953 f = i40e_find_mac(vsi, al->list[i].addr); 2954 if (!f) { 2955 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2956 2957 if (!f) { 2958 dev_err(&pf->pdev->dev, 2959 "Unable to add MAC filter %pM for VF %d\n", 2960 al->list[i].addr, vf->vf_id); 2961 ret = I40E_ERR_PARAM; 2962 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2963 goto error_param; 2964 } 2965 if (is_valid_ether_addr(al->list[i].addr) && 2966 is_zero_ether_addr(vf->default_lan_addr.addr)) 2967 ether_addr_copy(vf->default_lan_addr.addr, 2968 al->list[i].addr); 2969 } 2970 } 2971 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2972 2973 /* program the updated filter list */ 2974 ret = i40e_sync_vsi_filters(vsi); 2975 if (ret) 2976 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2977 vf->vf_id, ret); 2978 2979 error_param: 2980 /* send the response to the VF */ 2981 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2982 ret, NULL, 0); 2983 } 2984 2985 /** 2986 * i40e_vc_del_mac_addr_msg 2987 * @vf: pointer to the VF info 2988 * @msg: pointer to the msg buffer 2989 * 2990 * remove guest mac address filter 2991 **/ 2992 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2993 { 2994 struct virtchnl_ether_addr_list *al = 2995 (struct virtchnl_ether_addr_list *)msg; 2996 bool was_unimac_deleted = false; 2997 struct i40e_pf *pf = vf->pf; 2998 struct i40e_vsi *vsi = NULL; 2999 i40e_status ret = 0; 3000 int i; 3001 3002 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3003 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 3004 ret = I40E_ERR_PARAM; 3005 goto error_param; 3006 } 3007 3008 for (i = 0; i < al->num_elements; i++) { 3009 if (is_broadcast_ether_addr(al->list[i].addr) || 3010 is_zero_ether_addr(al->list[i].addr)) { 3011 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 3012 al->list[i].addr, vf->vf_id); 3013 ret = I40E_ERR_INVALID_MAC_ADDR; 3014 goto error_param; 3015 } 3016 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 3017 was_unimac_deleted = true; 3018 } 3019 vsi = pf->vsi[vf->lan_vsi_idx]; 3020 3021 spin_lock_bh(&vsi->mac_filter_hash_lock); 3022 /* delete addresses from the list */ 3023 for (i = 0; i < al->num_elements; i++) 3024 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 3025 ret = I40E_ERR_INVALID_MAC_ADDR; 3026 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3027 goto error_param; 3028 } 3029 3030 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3031 3032 /* program the updated filter list */ 3033 ret = i40e_sync_vsi_filters(vsi); 3034 if (ret) 3035 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 3036 vf->vf_id, ret); 3037 3038 if (vf->trusted && was_unimac_deleted) { 3039 struct i40e_mac_filter *f; 3040 struct hlist_node *h; 3041 u8 *macaddr = NULL; 3042 int bkt; 3043 3044 /* set last unicast mac address as default */ 3045 spin_lock_bh(&vsi->mac_filter_hash_lock); 3046 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3047 if (is_valid_ether_addr(f->macaddr)) 3048 macaddr = f->macaddr; 3049 } 3050 if (macaddr) 3051 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3052 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3053 } 3054 error_param: 3055 /* send the response to the VF */ 3056 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3057 } 3058 3059 /** 3060 * i40e_vc_add_vlan_msg 3061 * @vf: pointer to the VF info 3062 * @msg: pointer to the msg buffer 3063 * 3064 * program guest vlan id 3065 **/ 3066 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3067 { 3068 struct virtchnl_vlan_filter_list *vfl = 3069 (struct virtchnl_vlan_filter_list *)msg; 3070 struct i40e_pf *pf = vf->pf; 3071 struct i40e_vsi *vsi = NULL; 3072 i40e_status aq_ret = 0; 3073 int i; 3074 3075 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3076 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3077 dev_err(&pf->pdev->dev, 3078 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3079 goto error_param; 3080 } 3081 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3082 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3083 aq_ret = I40E_ERR_PARAM; 3084 goto error_param; 3085 } 3086 3087 for (i = 0; i < vfl->num_elements; i++) { 3088 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3089 aq_ret = I40E_ERR_PARAM; 3090 dev_err(&pf->pdev->dev, 3091 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3092 goto error_param; 3093 } 3094 } 3095 vsi = pf->vsi[vf->lan_vsi_idx]; 3096 if (vsi->info.pvid) { 3097 aq_ret = I40E_ERR_PARAM; 3098 goto error_param; 3099 } 3100 3101 i40e_vlan_stripping_enable(vsi); 3102 for (i = 0; i < vfl->num_elements; i++) { 3103 /* add new VLAN filter */ 3104 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3105 if (!ret) 3106 vf->num_vlan++; 3107 3108 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3109 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3110 true, 3111 vfl->vlan_id[i], 3112 NULL); 3113 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3114 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3115 true, 3116 vfl->vlan_id[i], 3117 NULL); 3118 3119 if (ret) 3120 dev_err(&pf->pdev->dev, 3121 "Unable to add VLAN filter %d for VF %d, error %d\n", 3122 vfl->vlan_id[i], vf->vf_id, ret); 3123 } 3124 3125 error_param: 3126 /* send the response to the VF */ 3127 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3128 } 3129 3130 /** 3131 * i40e_vc_remove_vlan_msg 3132 * @vf: pointer to the VF info 3133 * @msg: pointer to the msg buffer 3134 * 3135 * remove programmed guest vlan id 3136 **/ 3137 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3138 { 3139 struct virtchnl_vlan_filter_list *vfl = 3140 (struct virtchnl_vlan_filter_list *)msg; 3141 struct i40e_pf *pf = vf->pf; 3142 struct i40e_vsi *vsi = NULL; 3143 i40e_status aq_ret = 0; 3144 int i; 3145 3146 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3147 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3148 aq_ret = I40E_ERR_PARAM; 3149 goto error_param; 3150 } 3151 3152 for (i = 0; i < vfl->num_elements; i++) { 3153 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3154 aq_ret = I40E_ERR_PARAM; 3155 goto error_param; 3156 } 3157 } 3158 3159 vsi = pf->vsi[vf->lan_vsi_idx]; 3160 if (vsi->info.pvid) { 3161 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3162 aq_ret = I40E_ERR_PARAM; 3163 goto error_param; 3164 } 3165 3166 for (i = 0; i < vfl->num_elements; i++) { 3167 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3168 vf->num_vlan--; 3169 3170 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3171 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3172 false, 3173 vfl->vlan_id[i], 3174 NULL); 3175 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3176 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3177 false, 3178 vfl->vlan_id[i], 3179 NULL); 3180 } 3181 3182 error_param: 3183 /* send the response to the VF */ 3184 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3185 } 3186 3187 /** 3188 * i40e_vc_iwarp_msg 3189 * @vf: pointer to the VF info 3190 * @msg: pointer to the msg buffer 3191 * @msglen: msg length 3192 * 3193 * called from the VF for the iwarp msgs 3194 **/ 3195 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3196 { 3197 struct i40e_pf *pf = vf->pf; 3198 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3199 i40e_status aq_ret = 0; 3200 3201 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3202 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3203 aq_ret = I40E_ERR_PARAM; 3204 goto error_param; 3205 } 3206 3207 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3208 msg, msglen); 3209 3210 error_param: 3211 /* send the response to the VF */ 3212 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 3213 aq_ret); 3214 } 3215 3216 /** 3217 * i40e_vc_iwarp_qvmap_msg 3218 * @vf: pointer to the VF info 3219 * @msg: pointer to the msg buffer 3220 * @config: config qvmap or release it 3221 * 3222 * called from the VF for the iwarp msgs 3223 **/ 3224 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3225 { 3226 struct virtchnl_iwarp_qvlist_info *qvlist_info = 3227 (struct virtchnl_iwarp_qvlist_info *)msg; 3228 i40e_status aq_ret = 0; 3229 3230 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3231 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3232 aq_ret = I40E_ERR_PARAM; 3233 goto error_param; 3234 } 3235 3236 if (config) { 3237 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 3238 aq_ret = I40E_ERR_PARAM; 3239 } else { 3240 i40e_release_iwarp_qvlist(vf); 3241 } 3242 3243 error_param: 3244 /* send the response to the VF */ 3245 return i40e_vc_send_resp_to_vf(vf, 3246 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 3247 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 3248 aq_ret); 3249 } 3250 3251 /** 3252 * i40e_vc_config_rss_key 3253 * @vf: pointer to the VF info 3254 * @msg: pointer to the msg buffer 3255 * 3256 * Configure the VF's RSS key 3257 **/ 3258 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3259 { 3260 struct virtchnl_rss_key *vrk = 3261 (struct virtchnl_rss_key *)msg; 3262 struct i40e_pf *pf = vf->pf; 3263 struct i40e_vsi *vsi = NULL; 3264 i40e_status aq_ret = 0; 3265 3266 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3267 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3268 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3269 aq_ret = I40E_ERR_PARAM; 3270 goto err; 3271 } 3272 3273 vsi = pf->vsi[vf->lan_vsi_idx]; 3274 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3275 err: 3276 /* send the response to the VF */ 3277 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3278 aq_ret); 3279 } 3280 3281 /** 3282 * i40e_vc_config_rss_lut 3283 * @vf: pointer to the VF info 3284 * @msg: pointer to the msg buffer 3285 * 3286 * Configure the VF's RSS LUT 3287 **/ 3288 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3289 { 3290 struct virtchnl_rss_lut *vrl = 3291 (struct virtchnl_rss_lut *)msg; 3292 struct i40e_pf *pf = vf->pf; 3293 struct i40e_vsi *vsi = NULL; 3294 i40e_status aq_ret = 0; 3295 u16 i; 3296 3297 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3298 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3299 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3300 aq_ret = I40E_ERR_PARAM; 3301 goto err; 3302 } 3303 3304 for (i = 0; i < vrl->lut_entries; i++) 3305 if (vrl->lut[i] >= vf->num_queue_pairs) { 3306 aq_ret = I40E_ERR_PARAM; 3307 goto err; 3308 } 3309 3310 vsi = pf->vsi[vf->lan_vsi_idx]; 3311 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3312 /* send the response to the VF */ 3313 err: 3314 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3315 aq_ret); 3316 } 3317 3318 /** 3319 * i40e_vc_get_rss_hena 3320 * @vf: pointer to the VF info 3321 * @msg: pointer to the msg buffer 3322 * 3323 * Return the RSS HENA bits allowed by the hardware 3324 **/ 3325 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3326 { 3327 struct virtchnl_rss_hena *vrh = NULL; 3328 struct i40e_pf *pf = vf->pf; 3329 i40e_status aq_ret = 0; 3330 int len = 0; 3331 3332 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3333 aq_ret = I40E_ERR_PARAM; 3334 goto err; 3335 } 3336 len = sizeof(struct virtchnl_rss_hena); 3337 3338 vrh = kzalloc(len, GFP_KERNEL); 3339 if (!vrh) { 3340 aq_ret = I40E_ERR_NO_MEMORY; 3341 len = 0; 3342 goto err; 3343 } 3344 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3345 err: 3346 /* send the response back to the VF */ 3347 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3348 aq_ret, (u8 *)vrh, len); 3349 kfree(vrh); 3350 return aq_ret; 3351 } 3352 3353 /** 3354 * i40e_vc_set_rss_hena 3355 * @vf: pointer to the VF info 3356 * @msg: pointer to the msg buffer 3357 * 3358 * Set the RSS HENA bits for the VF 3359 **/ 3360 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3361 { 3362 struct virtchnl_rss_hena *vrh = 3363 (struct virtchnl_rss_hena *)msg; 3364 struct i40e_pf *pf = vf->pf; 3365 struct i40e_hw *hw = &pf->hw; 3366 i40e_status aq_ret = 0; 3367 3368 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3369 aq_ret = I40E_ERR_PARAM; 3370 goto err; 3371 } 3372 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3373 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3374 (u32)(vrh->hena >> 32)); 3375 3376 /* send the response to the VF */ 3377 err: 3378 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3379 } 3380 3381 /** 3382 * i40e_vc_enable_vlan_stripping 3383 * @vf: pointer to the VF info 3384 * @msg: pointer to the msg buffer 3385 * 3386 * Enable vlan header stripping for the VF 3387 **/ 3388 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3389 { 3390 i40e_status aq_ret = 0; 3391 struct i40e_vsi *vsi; 3392 3393 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3394 aq_ret = I40E_ERR_PARAM; 3395 goto err; 3396 } 3397 3398 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3399 i40e_vlan_stripping_enable(vsi); 3400 3401 /* send the response to the VF */ 3402 err: 3403 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3404 aq_ret); 3405 } 3406 3407 /** 3408 * i40e_vc_disable_vlan_stripping 3409 * @vf: pointer to the VF info 3410 * @msg: pointer to the msg buffer 3411 * 3412 * Disable vlan header stripping for the VF 3413 **/ 3414 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3415 { 3416 i40e_status aq_ret = 0; 3417 struct i40e_vsi *vsi; 3418 3419 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3420 aq_ret = I40E_ERR_PARAM; 3421 goto err; 3422 } 3423 3424 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3425 i40e_vlan_stripping_disable(vsi); 3426 3427 /* send the response to the VF */ 3428 err: 3429 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3430 aq_ret); 3431 } 3432 3433 /** 3434 * i40e_validate_cloud_filter 3435 * @vf: pointer to VF structure 3436 * @tc_filter: pointer to filter requested 3437 * 3438 * This function validates cloud filter programmed as TC filter for ADq 3439 **/ 3440 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3441 struct virtchnl_filter *tc_filter) 3442 { 3443 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3444 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3445 struct i40e_pf *pf = vf->pf; 3446 struct i40e_vsi *vsi = NULL; 3447 struct i40e_mac_filter *f; 3448 struct hlist_node *h; 3449 bool found = false; 3450 int bkt; 3451 3452 if (!tc_filter->action) { 3453 dev_info(&pf->pdev->dev, 3454 "VF %d: Currently ADq doesn't support Drop Action\n", 3455 vf->vf_id); 3456 goto err; 3457 } 3458 3459 /* action_meta is TC number here to which the filter is applied */ 3460 if (!tc_filter->action_meta || 3461 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3462 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3463 vf->vf_id, tc_filter->action_meta); 3464 goto err; 3465 } 3466 3467 /* Check filter if it's programmed for advanced mode or basic mode. 3468 * There are two ADq modes (for VF only), 3469 * 1. Basic mode: intended to allow as many filter options as possible 3470 * to be added to a VF in Non-trusted mode. Main goal is 3471 * to add filters to its own MAC and VLAN id. 3472 * 2. Advanced mode: is for allowing filters to be applied other than 3473 * its own MAC or VLAN. This mode requires the VF to be 3474 * Trusted. 3475 */ 3476 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3477 vsi = pf->vsi[vf->lan_vsi_idx]; 3478 f = i40e_find_mac(vsi, data.dst_mac); 3479 3480 if (!f) { 3481 dev_info(&pf->pdev->dev, 3482 "Destination MAC %pM doesn't belong to VF %d\n", 3483 data.dst_mac, vf->vf_id); 3484 goto err; 3485 } 3486 3487 if (mask.vlan_id) { 3488 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3489 hlist) { 3490 if (f->vlan == ntohs(data.vlan_id)) { 3491 found = true; 3492 break; 3493 } 3494 } 3495 if (!found) { 3496 dev_info(&pf->pdev->dev, 3497 "VF %d doesn't have any VLAN id %u\n", 3498 vf->vf_id, ntohs(data.vlan_id)); 3499 goto err; 3500 } 3501 } 3502 } else { 3503 /* Check if VF is trusted */ 3504 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3505 dev_err(&pf->pdev->dev, 3506 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3507 vf->vf_id); 3508 return I40E_ERR_CONFIG; 3509 } 3510 } 3511 3512 if (mask.dst_mac[0] & data.dst_mac[0]) { 3513 if (is_broadcast_ether_addr(data.dst_mac) || 3514 is_zero_ether_addr(data.dst_mac)) { 3515 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3516 vf->vf_id, data.dst_mac); 3517 goto err; 3518 } 3519 } 3520 3521 if (mask.src_mac[0] & data.src_mac[0]) { 3522 if (is_broadcast_ether_addr(data.src_mac) || 3523 is_zero_ether_addr(data.src_mac)) { 3524 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3525 vf->vf_id, data.src_mac); 3526 goto err; 3527 } 3528 } 3529 3530 if (mask.dst_port & data.dst_port) { 3531 if (!data.dst_port) { 3532 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3533 vf->vf_id); 3534 goto err; 3535 } 3536 } 3537 3538 if (mask.src_port & data.src_port) { 3539 if (!data.src_port) { 3540 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3541 vf->vf_id); 3542 goto err; 3543 } 3544 } 3545 3546 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3547 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3548 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3549 vf->vf_id); 3550 goto err; 3551 } 3552 3553 if (mask.vlan_id & data.vlan_id) { 3554 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3555 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3556 vf->vf_id); 3557 goto err; 3558 } 3559 } 3560 3561 return I40E_SUCCESS; 3562 err: 3563 return I40E_ERR_CONFIG; 3564 } 3565 3566 /** 3567 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3568 * @vf: pointer to the VF info 3569 * @seid: seid of the vsi it is searching for 3570 **/ 3571 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3572 { 3573 struct i40e_pf *pf = vf->pf; 3574 struct i40e_vsi *vsi = NULL; 3575 int i; 3576 3577 for (i = 0; i < vf->num_tc ; i++) { 3578 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3579 if (vsi && vsi->seid == seid) 3580 return vsi; 3581 } 3582 return NULL; 3583 } 3584 3585 /** 3586 * i40e_del_all_cloud_filters 3587 * @vf: pointer to the VF info 3588 * 3589 * This function deletes all cloud filters 3590 **/ 3591 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3592 { 3593 struct i40e_cloud_filter *cfilter = NULL; 3594 struct i40e_pf *pf = vf->pf; 3595 struct i40e_vsi *vsi = NULL; 3596 struct hlist_node *node; 3597 int ret; 3598 3599 hlist_for_each_entry_safe(cfilter, node, 3600 &vf->cloud_filter_list, cloud_node) { 3601 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3602 3603 if (!vsi) { 3604 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3605 vf->vf_id, cfilter->seid); 3606 continue; 3607 } 3608 3609 if (cfilter->dst_port) 3610 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3611 false); 3612 else 3613 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3614 if (ret) 3615 dev_err(&pf->pdev->dev, 3616 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3617 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3618 i40e_aq_str(&pf->hw, 3619 pf->hw.aq.asq_last_status)); 3620 3621 hlist_del(&cfilter->cloud_node); 3622 kfree(cfilter); 3623 vf->num_cloud_filters--; 3624 } 3625 } 3626 3627 /** 3628 * i40e_vc_del_cloud_filter 3629 * @vf: pointer to the VF info 3630 * @msg: pointer to the msg buffer 3631 * 3632 * This function deletes a cloud filter programmed as TC filter for ADq 3633 **/ 3634 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3635 { 3636 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3637 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3638 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3639 struct i40e_cloud_filter cfilter, *cf = NULL; 3640 struct i40e_pf *pf = vf->pf; 3641 struct i40e_vsi *vsi = NULL; 3642 struct hlist_node *node; 3643 i40e_status aq_ret = 0; 3644 int i, ret; 3645 3646 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3647 aq_ret = I40E_ERR_PARAM; 3648 goto err; 3649 } 3650 3651 if (!vf->adq_enabled) { 3652 dev_info(&pf->pdev->dev, 3653 "VF %d: ADq not enabled, can't apply cloud filter\n", 3654 vf->vf_id); 3655 aq_ret = I40E_ERR_PARAM; 3656 goto err; 3657 } 3658 3659 if (i40e_validate_cloud_filter(vf, vcf)) { 3660 dev_info(&pf->pdev->dev, 3661 "VF %d: Invalid input, can't apply cloud filter\n", 3662 vf->vf_id); 3663 aq_ret = I40E_ERR_PARAM; 3664 goto err; 3665 } 3666 3667 memset(&cfilter, 0, sizeof(cfilter)); 3668 /* parse destination mac address */ 3669 for (i = 0; i < ETH_ALEN; i++) 3670 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3671 3672 /* parse source mac address */ 3673 for (i = 0; i < ETH_ALEN; i++) 3674 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3675 3676 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3677 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3678 cfilter.src_port = mask.src_port & tcf.src_port; 3679 3680 switch (vcf->flow_type) { 3681 case VIRTCHNL_TCP_V4_FLOW: 3682 cfilter.n_proto = ETH_P_IP; 3683 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3684 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3685 ARRAY_SIZE(tcf.dst_ip)); 3686 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3687 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3688 ARRAY_SIZE(tcf.dst_ip)); 3689 break; 3690 case VIRTCHNL_TCP_V6_FLOW: 3691 cfilter.n_proto = ETH_P_IPV6; 3692 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3693 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3694 sizeof(cfilter.ip.v6.dst_ip6)); 3695 if (mask.src_ip[3] & tcf.src_ip[3]) 3696 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3697 sizeof(cfilter.ip.v6.src_ip6)); 3698 break; 3699 default: 3700 /* TC filter can be configured based on different combinations 3701 * and in this case IP is not a part of filter config 3702 */ 3703 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3704 vf->vf_id); 3705 } 3706 3707 /* get the vsi to which the tc belongs to */ 3708 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3709 cfilter.seid = vsi->seid; 3710 cfilter.flags = vcf->field_flags; 3711 3712 /* Deleting TC filter */ 3713 if (tcf.dst_port) 3714 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3715 else 3716 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3717 if (ret) { 3718 dev_err(&pf->pdev->dev, 3719 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3720 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3721 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3722 goto err; 3723 } 3724 3725 hlist_for_each_entry_safe(cf, node, 3726 &vf->cloud_filter_list, cloud_node) { 3727 if (cf->seid != cfilter.seid) 3728 continue; 3729 if (mask.dst_port) 3730 if (cfilter.dst_port != cf->dst_port) 3731 continue; 3732 if (mask.dst_mac[0]) 3733 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3734 continue; 3735 /* for ipv4 data to be valid, only first byte of mask is set */ 3736 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3737 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3738 ARRAY_SIZE(tcf.dst_ip))) 3739 continue; 3740 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3741 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3742 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3743 sizeof(cfilter.ip.v6.src_ip6))) 3744 continue; 3745 if (mask.vlan_id) 3746 if (cfilter.vlan_id != cf->vlan_id) 3747 continue; 3748 3749 hlist_del(&cf->cloud_node); 3750 kfree(cf); 3751 vf->num_cloud_filters--; 3752 } 3753 3754 err: 3755 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3756 aq_ret); 3757 } 3758 3759 /** 3760 * i40e_vc_add_cloud_filter 3761 * @vf: pointer to the VF info 3762 * @msg: pointer to the msg buffer 3763 * 3764 * This function adds a cloud filter programmed as TC filter for ADq 3765 **/ 3766 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3767 { 3768 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3769 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3770 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3771 struct i40e_cloud_filter *cfilter = NULL; 3772 struct i40e_pf *pf = vf->pf; 3773 struct i40e_vsi *vsi = NULL; 3774 i40e_status aq_ret = 0; 3775 int i, ret; 3776 3777 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3778 aq_ret = I40E_ERR_PARAM; 3779 goto err_out; 3780 } 3781 3782 if (!vf->adq_enabled) { 3783 dev_info(&pf->pdev->dev, 3784 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3785 vf->vf_id); 3786 aq_ret = I40E_ERR_PARAM; 3787 goto err_out; 3788 } 3789 3790 if (i40e_validate_cloud_filter(vf, vcf)) { 3791 dev_info(&pf->pdev->dev, 3792 "VF %d: Invalid input/s, can't apply cloud filter\n", 3793 vf->vf_id); 3794 aq_ret = I40E_ERR_PARAM; 3795 goto err_out; 3796 } 3797 3798 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3799 if (!cfilter) 3800 return -ENOMEM; 3801 3802 /* parse destination mac address */ 3803 for (i = 0; i < ETH_ALEN; i++) 3804 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3805 3806 /* parse source mac address */ 3807 for (i = 0; i < ETH_ALEN; i++) 3808 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3809 3810 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3811 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3812 cfilter->src_port = mask.src_port & tcf.src_port; 3813 3814 switch (vcf->flow_type) { 3815 case VIRTCHNL_TCP_V4_FLOW: 3816 cfilter->n_proto = ETH_P_IP; 3817 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3818 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3819 ARRAY_SIZE(tcf.dst_ip)); 3820 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3821 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3822 ARRAY_SIZE(tcf.dst_ip)); 3823 break; 3824 case VIRTCHNL_TCP_V6_FLOW: 3825 cfilter->n_proto = ETH_P_IPV6; 3826 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3827 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3828 sizeof(cfilter->ip.v6.dst_ip6)); 3829 if (mask.src_ip[3] & tcf.src_ip[3]) 3830 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3831 sizeof(cfilter->ip.v6.src_ip6)); 3832 break; 3833 default: 3834 /* TC filter can be configured based on different combinations 3835 * and in this case IP is not a part of filter config 3836 */ 3837 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3838 vf->vf_id); 3839 } 3840 3841 /* get the VSI to which the TC belongs to */ 3842 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3843 cfilter->seid = vsi->seid; 3844 cfilter->flags = vcf->field_flags; 3845 3846 /* Adding cloud filter programmed as TC filter */ 3847 if (tcf.dst_port) 3848 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3849 else 3850 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3851 if (ret) { 3852 dev_err(&pf->pdev->dev, 3853 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3854 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3855 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3856 goto err_free; 3857 } 3858 3859 INIT_HLIST_NODE(&cfilter->cloud_node); 3860 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3861 /* release the pointer passing it to the collection */ 3862 cfilter = NULL; 3863 vf->num_cloud_filters++; 3864 err_free: 3865 kfree(cfilter); 3866 err_out: 3867 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3868 aq_ret); 3869 } 3870 3871 /** 3872 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3873 * @vf: pointer to the VF info 3874 * @msg: pointer to the msg buffer 3875 **/ 3876 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3877 { 3878 struct virtchnl_tc_info *tci = 3879 (struct virtchnl_tc_info *)msg; 3880 struct i40e_pf *pf = vf->pf; 3881 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3882 int i, adq_request_qps = 0; 3883 i40e_status aq_ret = 0; 3884 u64 speed = 0; 3885 3886 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3887 aq_ret = I40E_ERR_PARAM; 3888 goto err; 3889 } 3890 3891 /* ADq cannot be applied if spoof check is ON */ 3892 if (vf->spoofchk) { 3893 dev_err(&pf->pdev->dev, 3894 "Spoof check is ON, turn it OFF to enable ADq\n"); 3895 aq_ret = I40E_ERR_PARAM; 3896 goto err; 3897 } 3898 3899 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3900 dev_err(&pf->pdev->dev, 3901 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3902 vf->vf_id); 3903 aq_ret = I40E_ERR_PARAM; 3904 goto err; 3905 } 3906 3907 /* max number of traffic classes for VF currently capped at 4 */ 3908 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3909 dev_err(&pf->pdev->dev, 3910 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3911 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3912 aq_ret = I40E_ERR_PARAM; 3913 goto err; 3914 } 3915 3916 /* validate queues for each TC */ 3917 for (i = 0; i < tci->num_tc; i++) 3918 if (!tci->list[i].count || 3919 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3920 dev_err(&pf->pdev->dev, 3921 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3922 vf->vf_id, i, tci->list[i].count, 3923 I40E_DEFAULT_QUEUES_PER_VF); 3924 aq_ret = I40E_ERR_PARAM; 3925 goto err; 3926 } 3927 3928 /* need Max VF queues but already have default number of queues */ 3929 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3930 3931 if (pf->queues_left < adq_request_qps) { 3932 dev_err(&pf->pdev->dev, 3933 "No queues left to allocate to VF %d\n", 3934 vf->vf_id); 3935 aq_ret = I40E_ERR_PARAM; 3936 goto err; 3937 } else { 3938 /* we need to allocate max VF queues to enable ADq so as to 3939 * make sure ADq enabled VF always gets back queues when it 3940 * goes through a reset. 3941 */ 3942 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3943 } 3944 3945 /* get link speed in MB to validate rate limit */ 3946 speed = i40e_vc_link_speed2mbps(ls->link_speed); 3947 if (speed == SPEED_UNKNOWN) { 3948 dev_err(&pf->pdev->dev, 3949 "Cannot detect link speed\n"); 3950 aq_ret = I40E_ERR_PARAM; 3951 goto err; 3952 } 3953 3954 /* parse data from the queue channel info */ 3955 vf->num_tc = tci->num_tc; 3956 for (i = 0; i < vf->num_tc; i++) { 3957 if (tci->list[i].max_tx_rate) { 3958 if (tci->list[i].max_tx_rate > speed) { 3959 dev_err(&pf->pdev->dev, 3960 "Invalid max tx rate %llu specified for VF %d.", 3961 tci->list[i].max_tx_rate, 3962 vf->vf_id); 3963 aq_ret = I40E_ERR_PARAM; 3964 goto err; 3965 } else { 3966 vf->ch[i].max_tx_rate = 3967 tci->list[i].max_tx_rate; 3968 } 3969 } 3970 vf->ch[i].num_qps = tci->list[i].count; 3971 } 3972 3973 /* set this flag only after making sure all inputs are sane */ 3974 vf->adq_enabled = true; 3975 3976 /* reset the VF in order to allocate resources */ 3977 i40e_vc_reset_vf(vf, true); 3978 3979 return I40E_SUCCESS; 3980 3981 /* send the response to the VF */ 3982 err: 3983 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3984 aq_ret); 3985 } 3986 3987 /** 3988 * i40e_vc_del_qch_msg 3989 * @vf: pointer to the VF info 3990 * @msg: pointer to the msg buffer 3991 **/ 3992 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3993 { 3994 struct i40e_pf *pf = vf->pf; 3995 i40e_status aq_ret = 0; 3996 3997 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3998 aq_ret = I40E_ERR_PARAM; 3999 goto err; 4000 } 4001 4002 if (vf->adq_enabled) { 4003 i40e_del_all_cloud_filters(vf); 4004 i40e_del_qch(vf); 4005 vf->adq_enabled = false; 4006 vf->num_tc = 0; 4007 dev_info(&pf->pdev->dev, 4008 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 4009 vf->vf_id); 4010 } else { 4011 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 4012 vf->vf_id); 4013 aq_ret = I40E_ERR_PARAM; 4014 } 4015 4016 /* reset the VF in order to allocate resources */ 4017 i40e_vc_reset_vf(vf, true); 4018 4019 return I40E_SUCCESS; 4020 4021 err: 4022 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 4023 aq_ret); 4024 } 4025 4026 /** 4027 * i40e_vc_process_vf_msg 4028 * @pf: pointer to the PF structure 4029 * @vf_id: source VF id 4030 * @v_opcode: operation code 4031 * @v_retval: unused return value code 4032 * @msg: pointer to the msg buffer 4033 * @msglen: msg length 4034 * 4035 * called from the common aeq/arq handler to 4036 * process request from VF 4037 **/ 4038 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 4039 u32 __always_unused v_retval, u8 *msg, u16 msglen) 4040 { 4041 struct i40e_hw *hw = &pf->hw; 4042 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 4043 struct i40e_vf *vf; 4044 int ret; 4045 4046 pf->vf_aq_requests++; 4047 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4048 return -EINVAL; 4049 vf = &(pf->vf[local_vf_id]); 4050 4051 /* Check if VF is disabled. */ 4052 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4053 return I40E_ERR_PARAM; 4054 4055 /* perform basic checks on the msg */ 4056 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4057 4058 if (ret) { 4059 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 4060 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4061 local_vf_id, v_opcode, msglen); 4062 switch (ret) { 4063 case VIRTCHNL_STATUS_ERR_PARAM: 4064 return -EPERM; 4065 default: 4066 return -EINVAL; 4067 } 4068 } 4069 4070 switch (v_opcode) { 4071 case VIRTCHNL_OP_VERSION: 4072 ret = i40e_vc_get_version_msg(vf, msg); 4073 break; 4074 case VIRTCHNL_OP_GET_VF_RESOURCES: 4075 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4076 i40e_vc_notify_vf_link_state(vf); 4077 break; 4078 case VIRTCHNL_OP_RESET_VF: 4079 i40e_vc_reset_vf(vf, false); 4080 ret = 0; 4081 break; 4082 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4083 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4084 break; 4085 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4086 ret = i40e_vc_config_queues_msg(vf, msg); 4087 break; 4088 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4089 ret = i40e_vc_config_irq_map_msg(vf, msg); 4090 break; 4091 case VIRTCHNL_OP_ENABLE_QUEUES: 4092 ret = i40e_vc_enable_queues_msg(vf, msg); 4093 i40e_vc_notify_vf_link_state(vf); 4094 break; 4095 case VIRTCHNL_OP_DISABLE_QUEUES: 4096 ret = i40e_vc_disable_queues_msg(vf, msg); 4097 break; 4098 case VIRTCHNL_OP_ADD_ETH_ADDR: 4099 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4100 break; 4101 case VIRTCHNL_OP_DEL_ETH_ADDR: 4102 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4103 break; 4104 case VIRTCHNL_OP_ADD_VLAN: 4105 ret = i40e_vc_add_vlan_msg(vf, msg); 4106 break; 4107 case VIRTCHNL_OP_DEL_VLAN: 4108 ret = i40e_vc_remove_vlan_msg(vf, msg); 4109 break; 4110 case VIRTCHNL_OP_GET_STATS: 4111 ret = i40e_vc_get_stats_msg(vf, msg); 4112 break; 4113 case VIRTCHNL_OP_IWARP: 4114 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 4115 break; 4116 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 4117 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 4118 break; 4119 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 4120 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 4121 break; 4122 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4123 ret = i40e_vc_config_rss_key(vf, msg); 4124 break; 4125 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4126 ret = i40e_vc_config_rss_lut(vf, msg); 4127 break; 4128 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4129 ret = i40e_vc_get_rss_hena(vf, msg); 4130 break; 4131 case VIRTCHNL_OP_SET_RSS_HENA: 4132 ret = i40e_vc_set_rss_hena(vf, msg); 4133 break; 4134 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4135 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4136 break; 4137 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4138 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4139 break; 4140 case VIRTCHNL_OP_REQUEST_QUEUES: 4141 ret = i40e_vc_request_queues_msg(vf, msg); 4142 break; 4143 case VIRTCHNL_OP_ENABLE_CHANNELS: 4144 ret = i40e_vc_add_qch_msg(vf, msg); 4145 break; 4146 case VIRTCHNL_OP_DISABLE_CHANNELS: 4147 ret = i40e_vc_del_qch_msg(vf, msg); 4148 break; 4149 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4150 ret = i40e_vc_add_cloud_filter(vf, msg); 4151 break; 4152 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4153 ret = i40e_vc_del_cloud_filter(vf, msg); 4154 break; 4155 case VIRTCHNL_OP_UNKNOWN: 4156 default: 4157 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4158 v_opcode, local_vf_id); 4159 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4160 I40E_ERR_NOT_IMPLEMENTED); 4161 break; 4162 } 4163 4164 return ret; 4165 } 4166 4167 /** 4168 * i40e_vc_process_vflr_event 4169 * @pf: pointer to the PF structure 4170 * 4171 * called from the vlfr irq handler to 4172 * free up VF resources and state variables 4173 **/ 4174 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4175 { 4176 struct i40e_hw *hw = &pf->hw; 4177 u32 reg, reg_idx, bit_idx; 4178 struct i40e_vf *vf; 4179 int vf_id; 4180 4181 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4182 return 0; 4183 4184 /* Re-enable the VFLR interrupt cause here, before looking for which 4185 * VF got reset. Otherwise, if another VF gets a reset while the 4186 * first one is being processed, that interrupt will be lost, and 4187 * that VF will be stuck in reset forever. 4188 */ 4189 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4190 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4191 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4192 i40e_flush(hw); 4193 4194 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4195 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4196 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4197 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4198 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4199 vf = &pf->vf[vf_id]; 4200 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4201 if (reg & BIT(bit_idx)) 4202 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4203 i40e_reset_vf(vf, true); 4204 } 4205 4206 return 0; 4207 } 4208 4209 /** 4210 * i40e_validate_vf 4211 * @pf: the physical function 4212 * @vf_id: VF identifier 4213 * 4214 * Check that the VF is enabled and the VSI exists. 4215 * 4216 * Returns 0 on success, negative on failure 4217 **/ 4218 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4219 { 4220 struct i40e_vsi *vsi; 4221 struct i40e_vf *vf; 4222 int ret = 0; 4223 4224 if (vf_id >= pf->num_alloc_vfs) { 4225 dev_err(&pf->pdev->dev, 4226 "Invalid VF Identifier %d\n", vf_id); 4227 ret = -EINVAL; 4228 goto err_out; 4229 } 4230 vf = &pf->vf[vf_id]; 4231 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4232 if (!vsi) 4233 ret = -EINVAL; 4234 err_out: 4235 return ret; 4236 } 4237 4238 /** 4239 * i40e_ndo_set_vf_mac 4240 * @netdev: network interface device structure 4241 * @vf_id: VF identifier 4242 * @mac: mac address 4243 * 4244 * program VF mac address 4245 **/ 4246 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4247 { 4248 struct i40e_netdev_priv *np = netdev_priv(netdev); 4249 struct i40e_vsi *vsi = np->vsi; 4250 struct i40e_pf *pf = vsi->back; 4251 struct i40e_mac_filter *f; 4252 struct i40e_vf *vf; 4253 int ret = 0; 4254 struct hlist_node *h; 4255 int bkt; 4256 u8 i; 4257 4258 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4259 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4260 return -EAGAIN; 4261 } 4262 4263 /* validate the request */ 4264 ret = i40e_validate_vf(pf, vf_id); 4265 if (ret) 4266 goto error_param; 4267 4268 vf = &pf->vf[vf_id]; 4269 4270 /* When the VF is resetting wait until it is done. 4271 * It can take up to 200 milliseconds, 4272 * but wait for up to 300 milliseconds to be safe. 4273 * Acquire the VSI pointer only after the VF has been 4274 * properly initialized. 4275 */ 4276 for (i = 0; i < 15; i++) { 4277 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4278 break; 4279 msleep(20); 4280 } 4281 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4282 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4283 vf_id); 4284 ret = -EAGAIN; 4285 goto error_param; 4286 } 4287 vsi = pf->vsi[vf->lan_vsi_idx]; 4288 4289 if (is_multicast_ether_addr(mac)) { 4290 dev_err(&pf->pdev->dev, 4291 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4292 ret = -EINVAL; 4293 goto error_param; 4294 } 4295 4296 /* Lock once because below invoked function add/del_filter requires 4297 * mac_filter_hash_lock to be held 4298 */ 4299 spin_lock_bh(&vsi->mac_filter_hash_lock); 4300 4301 /* delete the temporary mac address */ 4302 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4303 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4304 4305 /* Delete all the filters for this VSI - we're going to kill it 4306 * anyway. 4307 */ 4308 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4309 __i40e_del_filter(vsi, f); 4310 4311 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4312 4313 /* program mac filter */ 4314 if (i40e_sync_vsi_filters(vsi)) { 4315 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4316 ret = -EIO; 4317 goto error_param; 4318 } 4319 ether_addr_copy(vf->default_lan_addr.addr, mac); 4320 4321 if (is_zero_ether_addr(mac)) { 4322 vf->pf_set_mac = false; 4323 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4324 } else { 4325 vf->pf_set_mac = true; 4326 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4327 mac, vf_id); 4328 } 4329 4330 /* Force the VF interface down so it has to bring up with new MAC 4331 * address 4332 */ 4333 i40e_vc_reset_vf(vf, true); 4334 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4335 4336 error_param: 4337 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4338 return ret; 4339 } 4340 4341 /** 4342 * i40e_ndo_set_vf_port_vlan 4343 * @netdev: network interface device structure 4344 * @vf_id: VF identifier 4345 * @vlan_id: mac address 4346 * @qos: priority setting 4347 * @vlan_proto: vlan protocol 4348 * 4349 * program VF vlan id and/or qos 4350 **/ 4351 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4352 u16 vlan_id, u8 qos, __be16 vlan_proto) 4353 { 4354 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4355 struct i40e_netdev_priv *np = netdev_priv(netdev); 4356 bool allmulti = false, alluni = false; 4357 struct i40e_pf *pf = np->vsi->back; 4358 struct i40e_vsi *vsi; 4359 struct i40e_vf *vf; 4360 int ret = 0; 4361 4362 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4363 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4364 return -EAGAIN; 4365 } 4366 4367 /* validate the request */ 4368 ret = i40e_validate_vf(pf, vf_id); 4369 if (ret) 4370 goto error_pvid; 4371 4372 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4373 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4374 ret = -EINVAL; 4375 goto error_pvid; 4376 } 4377 4378 if (vlan_proto != htons(ETH_P_8021Q)) { 4379 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4380 ret = -EPROTONOSUPPORT; 4381 goto error_pvid; 4382 } 4383 4384 vf = &pf->vf[vf_id]; 4385 vsi = pf->vsi[vf->lan_vsi_idx]; 4386 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4387 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4388 vf_id); 4389 ret = -EAGAIN; 4390 goto error_pvid; 4391 } 4392 4393 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4394 /* duplicate request, so just return success */ 4395 goto error_pvid; 4396 4397 i40e_vlan_stripping_enable(vsi); 4398 i40e_vc_reset_vf(vf, true); 4399 /* During reset the VF got a new VSI, so refresh a pointer. */ 4400 vsi = pf->vsi[vf->lan_vsi_idx]; 4401 /* Locked once because multiple functions below iterate list */ 4402 spin_lock_bh(&vsi->mac_filter_hash_lock); 4403 4404 /* Check for condition where there was already a port VLAN ID 4405 * filter set and now it is being deleted by setting it to zero. 4406 * Additionally check for the condition where there was a port 4407 * VLAN but now there is a new and different port VLAN being set. 4408 * Before deleting all the old VLAN filters we must add new ones 4409 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4410 * MAC addresses deleted. 4411 */ 4412 if ((!(vlan_id || qos) || 4413 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4414 vsi->info.pvid) { 4415 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4416 if (ret) { 4417 dev_info(&vsi->back->pdev->dev, 4418 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4419 vsi->back->hw.aq.asq_last_status); 4420 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4421 goto error_pvid; 4422 } 4423 } 4424 4425 if (vsi->info.pvid) { 4426 /* remove all filters on the old VLAN */ 4427 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4428 VLAN_VID_MASK)); 4429 } 4430 4431 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4432 4433 /* disable promisc modes in case they were enabled */ 4434 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4435 allmulti, alluni); 4436 if (ret) { 4437 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4438 goto error_pvid; 4439 } 4440 4441 if (vlan_id || qos) 4442 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4443 else 4444 i40e_vsi_remove_pvid(vsi); 4445 spin_lock_bh(&vsi->mac_filter_hash_lock); 4446 4447 if (vlan_id) { 4448 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4449 vlan_id, qos, vf_id); 4450 4451 /* add new VLAN filter for each MAC */ 4452 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4453 if (ret) { 4454 dev_info(&vsi->back->pdev->dev, 4455 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4456 vsi->back->hw.aq.asq_last_status); 4457 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4458 goto error_pvid; 4459 } 4460 4461 /* remove the previously added non-VLAN MAC filters */ 4462 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4463 } 4464 4465 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4466 4467 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4468 alluni = true; 4469 4470 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4471 allmulti = true; 4472 4473 /* Schedule the worker thread to take care of applying changes */ 4474 i40e_service_event_schedule(vsi->back); 4475 4476 if (ret) { 4477 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4478 goto error_pvid; 4479 } 4480 4481 /* The Port VLAN needs to be saved across resets the same as the 4482 * default LAN MAC address. 4483 */ 4484 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4485 4486 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4487 if (ret) { 4488 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4489 goto error_pvid; 4490 } 4491 4492 ret = 0; 4493 4494 error_pvid: 4495 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4496 return ret; 4497 } 4498 4499 /** 4500 * i40e_ndo_set_vf_bw 4501 * @netdev: network interface device structure 4502 * @vf_id: VF identifier 4503 * @min_tx_rate: Minimum Tx rate 4504 * @max_tx_rate: Maximum Tx rate 4505 * 4506 * configure VF Tx rate 4507 **/ 4508 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4509 int max_tx_rate) 4510 { 4511 struct i40e_netdev_priv *np = netdev_priv(netdev); 4512 struct i40e_pf *pf = np->vsi->back; 4513 struct i40e_vsi *vsi; 4514 struct i40e_vf *vf; 4515 int ret = 0; 4516 4517 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4518 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4519 return -EAGAIN; 4520 } 4521 4522 /* validate the request */ 4523 ret = i40e_validate_vf(pf, vf_id); 4524 if (ret) 4525 goto error; 4526 4527 if (min_tx_rate) { 4528 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4529 min_tx_rate, vf_id); 4530 ret = -EINVAL; 4531 goto error; 4532 } 4533 4534 vf = &pf->vf[vf_id]; 4535 vsi = pf->vsi[vf->lan_vsi_idx]; 4536 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4537 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4538 vf_id); 4539 ret = -EAGAIN; 4540 goto error; 4541 } 4542 4543 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4544 if (ret) 4545 goto error; 4546 4547 vf->tx_rate = max_tx_rate; 4548 error: 4549 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4550 return ret; 4551 } 4552 4553 /** 4554 * i40e_ndo_get_vf_config 4555 * @netdev: network interface device structure 4556 * @vf_id: VF identifier 4557 * @ivi: VF configuration structure 4558 * 4559 * return VF configuration 4560 **/ 4561 int i40e_ndo_get_vf_config(struct net_device *netdev, 4562 int vf_id, struct ifla_vf_info *ivi) 4563 { 4564 struct i40e_netdev_priv *np = netdev_priv(netdev); 4565 struct i40e_vsi *vsi = np->vsi; 4566 struct i40e_pf *pf = vsi->back; 4567 struct i40e_vf *vf; 4568 int ret = 0; 4569 4570 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4571 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4572 return -EAGAIN; 4573 } 4574 4575 /* validate the request */ 4576 ret = i40e_validate_vf(pf, vf_id); 4577 if (ret) 4578 goto error_param; 4579 4580 vf = &pf->vf[vf_id]; 4581 /* first vsi is always the LAN vsi */ 4582 vsi = pf->vsi[vf->lan_vsi_idx]; 4583 if (!vsi) { 4584 ret = -ENOENT; 4585 goto error_param; 4586 } 4587 4588 ivi->vf = vf_id; 4589 4590 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4591 4592 ivi->max_tx_rate = vf->tx_rate; 4593 ivi->min_tx_rate = 0; 4594 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4595 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4596 I40E_VLAN_PRIORITY_SHIFT; 4597 if (vf->link_forced == false) 4598 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4599 else if (vf->link_up == true) 4600 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4601 else 4602 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4603 ivi->spoofchk = vf->spoofchk; 4604 ivi->trusted = vf->trusted; 4605 ret = 0; 4606 4607 error_param: 4608 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4609 return ret; 4610 } 4611 4612 /** 4613 * i40e_ndo_set_vf_link_state 4614 * @netdev: network interface device structure 4615 * @vf_id: VF identifier 4616 * @link: required link state 4617 * 4618 * Set the link state of a specified VF, regardless of physical link state 4619 **/ 4620 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4621 { 4622 struct i40e_netdev_priv *np = netdev_priv(netdev); 4623 struct i40e_pf *pf = np->vsi->back; 4624 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4625 struct virtchnl_pf_event pfe; 4626 struct i40e_hw *hw = &pf->hw; 4627 struct i40e_vf *vf; 4628 int abs_vf_id; 4629 int ret = 0; 4630 4631 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4632 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4633 return -EAGAIN; 4634 } 4635 4636 /* validate the request */ 4637 if (vf_id >= pf->num_alloc_vfs) { 4638 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4639 ret = -EINVAL; 4640 goto error_out; 4641 } 4642 4643 vf = &pf->vf[vf_id]; 4644 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4645 4646 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4647 pfe.severity = PF_EVENT_SEVERITY_INFO; 4648 4649 switch (link) { 4650 case IFLA_VF_LINK_STATE_AUTO: 4651 vf->link_forced = false; 4652 i40e_set_vf_link_state(vf, &pfe, ls); 4653 break; 4654 case IFLA_VF_LINK_STATE_ENABLE: 4655 vf->link_forced = true; 4656 vf->link_up = true; 4657 i40e_set_vf_link_state(vf, &pfe, ls); 4658 break; 4659 case IFLA_VF_LINK_STATE_DISABLE: 4660 vf->link_forced = true; 4661 vf->link_up = false; 4662 i40e_set_vf_link_state(vf, &pfe, ls); 4663 break; 4664 default: 4665 ret = -EINVAL; 4666 goto error_out; 4667 } 4668 /* Notify the VF of its new link state */ 4669 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4670 0, (u8 *)&pfe, sizeof(pfe), NULL); 4671 4672 error_out: 4673 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4674 return ret; 4675 } 4676 4677 /** 4678 * i40e_ndo_set_vf_spoofchk 4679 * @netdev: network interface device structure 4680 * @vf_id: VF identifier 4681 * @enable: flag to enable or disable feature 4682 * 4683 * Enable or disable VF spoof checking 4684 **/ 4685 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4686 { 4687 struct i40e_netdev_priv *np = netdev_priv(netdev); 4688 struct i40e_vsi *vsi = np->vsi; 4689 struct i40e_pf *pf = vsi->back; 4690 struct i40e_vsi_context ctxt; 4691 struct i40e_hw *hw = &pf->hw; 4692 struct i40e_vf *vf; 4693 int ret = 0; 4694 4695 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4696 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4697 return -EAGAIN; 4698 } 4699 4700 /* validate the request */ 4701 if (vf_id >= pf->num_alloc_vfs) { 4702 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4703 ret = -EINVAL; 4704 goto out; 4705 } 4706 4707 vf = &(pf->vf[vf_id]); 4708 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4709 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4710 vf_id); 4711 ret = -EAGAIN; 4712 goto out; 4713 } 4714 4715 if (enable == vf->spoofchk) 4716 goto out; 4717 4718 vf->spoofchk = enable; 4719 memset(&ctxt, 0, sizeof(ctxt)); 4720 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4721 ctxt.pf_num = pf->hw.pf_id; 4722 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4723 if (enable) 4724 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4725 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4726 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4727 if (ret) { 4728 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4729 ret); 4730 ret = -EIO; 4731 } 4732 out: 4733 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4734 return ret; 4735 } 4736 4737 /** 4738 * i40e_ndo_set_vf_trust 4739 * @netdev: network interface device structure of the pf 4740 * @vf_id: VF identifier 4741 * @setting: trust setting 4742 * 4743 * Enable or disable VF trust setting 4744 **/ 4745 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4746 { 4747 struct i40e_netdev_priv *np = netdev_priv(netdev); 4748 struct i40e_pf *pf = np->vsi->back; 4749 struct i40e_vf *vf; 4750 int ret = 0; 4751 4752 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4753 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4754 return -EAGAIN; 4755 } 4756 4757 /* validate the request */ 4758 if (vf_id >= pf->num_alloc_vfs) { 4759 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4760 ret = -EINVAL; 4761 goto out; 4762 } 4763 4764 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4765 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4766 ret = -EINVAL; 4767 goto out; 4768 } 4769 4770 vf = &pf->vf[vf_id]; 4771 4772 if (setting == vf->trusted) 4773 goto out; 4774 4775 vf->trusted = setting; 4776 4777 /* request PF to sync mac/vlan filters for the VF */ 4778 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state); 4779 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED; 4780 4781 i40e_vc_reset_vf(vf, true); 4782 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4783 vf_id, setting ? "" : "un"); 4784 4785 if (vf->adq_enabled) { 4786 if (!vf->trusted) { 4787 dev_info(&pf->pdev->dev, 4788 "VF %u no longer Trusted, deleting all cloud filters\n", 4789 vf_id); 4790 i40e_del_all_cloud_filters(vf); 4791 } 4792 } 4793 4794 out: 4795 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4796 return ret; 4797 } 4798 4799 /** 4800 * i40e_get_vf_stats - populate some stats for the VF 4801 * @netdev: the netdev of the PF 4802 * @vf_id: the host OS identifier (0-127) 4803 * @vf_stats: pointer to the OS memory to be initialized 4804 */ 4805 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4806 struct ifla_vf_stats *vf_stats) 4807 { 4808 struct i40e_netdev_priv *np = netdev_priv(netdev); 4809 struct i40e_pf *pf = np->vsi->back; 4810 struct i40e_eth_stats *stats; 4811 struct i40e_vsi *vsi; 4812 struct i40e_vf *vf; 4813 4814 /* validate the request */ 4815 if (i40e_validate_vf(pf, vf_id)) 4816 return -EINVAL; 4817 4818 vf = &pf->vf[vf_id]; 4819 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4820 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4821 return -EBUSY; 4822 } 4823 4824 vsi = pf->vsi[vf->lan_vsi_idx]; 4825 if (!vsi) 4826 return -EINVAL; 4827 4828 i40e_update_eth_stats(vsi); 4829 stats = &vsi->eth_stats; 4830 4831 memset(vf_stats, 0, sizeof(*vf_stats)); 4832 4833 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4834 stats->rx_multicast; 4835 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4836 stats->tx_multicast; 4837 vf_stats->rx_bytes = stats->rx_bytes; 4838 vf_stats->tx_bytes = stats->tx_bytes; 4839 vf_stats->broadcast = stats->rx_broadcast; 4840 vf_stats->multicast = stats->rx_multicast; 4841 vf_stats->rx_dropped = stats->rx_discards; 4842 vf_stats->tx_dropped = stats->tx_discards; 4843 4844 return 0; 4845 } 4846