1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #include "i40e.h" 5 6 /*********************notification routines***********************/ 7 8 /** 9 * i40e_vc_vf_broadcast 10 * @pf: pointer to the PF structure 11 * @v_opcode: operation code 12 * @v_retval: return value 13 * @msg: pointer to the msg buffer 14 * @msglen: msg length 15 * 16 * send a message to all VFs on a given PF 17 **/ 18 static void i40e_vc_vf_broadcast(struct i40e_pf *pf, 19 enum virtchnl_ops v_opcode, 20 i40e_status v_retval, u8 *msg, 21 u16 msglen) 22 { 23 struct i40e_hw *hw = &pf->hw; 24 struct i40e_vf *vf = pf->vf; 25 int i; 26 27 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { 28 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 29 /* Not all vfs are enabled so skip the ones that are not */ 30 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 31 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 32 continue; 33 34 /* Ignore return value on purpose - a given VF may fail, but 35 * we need to keep going and send to all of them 36 */ 37 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 38 msg, msglen, NULL); 39 } 40 } 41 42 /** 43 * i40e_vc_link_speed2mbps 44 * converts i40e_aq_link_speed to integer value of Mbps 45 * @link_speed: the speed to convert 46 * 47 * return the speed as direct value of Mbps. 48 **/ 49 static u32 50 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed) 51 { 52 switch (link_speed) { 53 case I40E_LINK_SPEED_100MB: 54 return SPEED_100; 55 case I40E_LINK_SPEED_1GB: 56 return SPEED_1000; 57 case I40E_LINK_SPEED_2_5GB: 58 return SPEED_2500; 59 case I40E_LINK_SPEED_5GB: 60 return SPEED_5000; 61 case I40E_LINK_SPEED_10GB: 62 return SPEED_10000; 63 case I40E_LINK_SPEED_20GB: 64 return SPEED_20000; 65 case I40E_LINK_SPEED_25GB: 66 return SPEED_25000; 67 case I40E_LINK_SPEED_40GB: 68 return SPEED_40000; 69 case I40E_LINK_SPEED_UNKNOWN: 70 return SPEED_UNKNOWN; 71 } 72 return SPEED_UNKNOWN; 73 } 74 75 /** 76 * i40e_set_vf_link_state 77 * @vf: pointer to the VF structure 78 * @pfe: pointer to PF event structure 79 * @ls: pointer to link status structure 80 * 81 * set a link state on a single vf 82 **/ 83 static void i40e_set_vf_link_state(struct i40e_vf *vf, 84 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls) 85 { 86 u8 link_status = ls->link_info & I40E_AQ_LINK_UP; 87 88 if (vf->link_forced) 89 link_status = vf->link_up; 90 91 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { 92 pfe->event_data.link_event_adv.link_speed = link_status ? 93 i40e_vc_link_speed2mbps(ls->link_speed) : 0; 94 pfe->event_data.link_event_adv.link_status = link_status; 95 } else { 96 pfe->event_data.link_event.link_speed = link_status ? 97 i40e_virtchnl_link_speed(ls->link_speed) : 0; 98 pfe->event_data.link_event.link_status = link_status; 99 } 100 } 101 102 /** 103 * i40e_vc_notify_vf_link_state 104 * @vf: pointer to the VF structure 105 * 106 * send a link status message to a single VF 107 **/ 108 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 109 { 110 struct virtchnl_pf_event pfe; 111 struct i40e_pf *pf = vf->pf; 112 struct i40e_hw *hw = &pf->hw; 113 struct i40e_link_status *ls = &pf->hw.phy.link_info; 114 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 115 116 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 117 pfe.severity = PF_EVENT_SEVERITY_INFO; 118 119 i40e_set_vf_link_state(vf, &pfe, ls); 120 121 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 122 0, (u8 *)&pfe, sizeof(pfe), NULL); 123 } 124 125 /** 126 * i40e_vc_notify_link_state 127 * @pf: pointer to the PF structure 128 * 129 * send a link status message to all VFs on a given PF 130 **/ 131 void i40e_vc_notify_link_state(struct i40e_pf *pf) 132 { 133 int i; 134 135 for (i = 0; i < pf->num_alloc_vfs; i++) 136 i40e_vc_notify_vf_link_state(&pf->vf[i]); 137 } 138 139 /** 140 * i40e_vc_notify_reset 141 * @pf: pointer to the PF structure 142 * 143 * indicate a pending reset to all VFs on a given PF 144 **/ 145 void i40e_vc_notify_reset(struct i40e_pf *pf) 146 { 147 struct virtchnl_pf_event pfe; 148 149 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 150 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 151 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, 152 (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); 153 } 154 155 /** 156 * i40e_vc_notify_vf_reset 157 * @vf: pointer to the VF structure 158 * 159 * indicate a pending reset to the given VF 160 **/ 161 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 162 { 163 struct virtchnl_pf_event pfe; 164 int abs_vf_id; 165 166 /* validate the request */ 167 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 168 return; 169 170 /* verify if the VF is in either init or active before proceeding */ 171 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 172 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 173 return; 174 175 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 176 177 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 178 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 179 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, 180 0, (u8 *)&pfe, 181 sizeof(struct virtchnl_pf_event), NULL); 182 } 183 /***********************misc routines*****************************/ 184 185 /** 186 * i40e_vc_reset_vf 187 * @vf: pointer to the VF info 188 * @notify_vf: notify vf about reset or not 189 * Reset VF handler. 190 **/ 191 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf) 192 { 193 struct i40e_pf *pf = vf->pf; 194 int i; 195 196 if (notify_vf) 197 i40e_vc_notify_vf_reset(vf); 198 199 /* We want to ensure that an actual reset occurs initiated after this 200 * function was called. However, we do not want to wait forever, so 201 * we'll give a reasonable time and print a message if we failed to 202 * ensure a reset. 203 */ 204 for (i = 0; i < 20; i++) { 205 /* If PF is in VFs releasing state reset VF is impossible, 206 * so leave it. 207 */ 208 if (test_bit(__I40E_VFS_RELEASING, pf->state)) 209 return; 210 if (i40e_reset_vf(vf, false)) 211 return; 212 usleep_range(10000, 20000); 213 } 214 215 if (notify_vf) 216 dev_warn(&vf->pf->pdev->dev, 217 "Failed to initiate reset for VF %d after 200 milliseconds\n", 218 vf->vf_id); 219 else 220 dev_dbg(&vf->pf->pdev->dev, 221 "Failed to initiate reset for VF %d after 200 milliseconds\n", 222 vf->vf_id); 223 } 224 225 /** 226 * i40e_vc_isvalid_vsi_id 227 * @vf: pointer to the VF info 228 * @vsi_id: VF relative VSI id 229 * 230 * check for the valid VSI id 231 **/ 232 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 233 { 234 struct i40e_pf *pf = vf->pf; 235 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 236 237 return (vsi && (vsi->vf_id == vf->vf_id)); 238 } 239 240 /** 241 * i40e_vc_isvalid_queue_id 242 * @vf: pointer to the VF info 243 * @vsi_id: vsi id 244 * @qid: vsi relative queue id 245 * 246 * check for the valid queue id 247 **/ 248 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 249 u16 qid) 250 { 251 struct i40e_pf *pf = vf->pf; 252 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 253 254 return (vsi && (qid < vsi->alloc_queue_pairs)); 255 } 256 257 /** 258 * i40e_vc_isvalid_vector_id 259 * @vf: pointer to the VF info 260 * @vector_id: VF relative vector id 261 * 262 * check for the valid vector id 263 **/ 264 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) 265 { 266 struct i40e_pf *pf = vf->pf; 267 268 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 269 } 270 271 /***********************vf resource mgmt routines*****************/ 272 273 /** 274 * i40e_vc_get_pf_queue_id 275 * @vf: pointer to the VF info 276 * @vsi_id: id of VSI as provided by the FW 277 * @vsi_queue_id: vsi relative queue id 278 * 279 * return PF relative queue id 280 **/ 281 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 282 u8 vsi_queue_id) 283 { 284 struct i40e_pf *pf = vf->pf; 285 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 286 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 287 288 if (!vsi) 289 return pf_queue_id; 290 291 if (le16_to_cpu(vsi->info.mapping_flags) & 292 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 293 pf_queue_id = 294 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 295 else 296 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 297 vsi_queue_id; 298 299 return pf_queue_id; 300 } 301 302 /** 303 * i40e_get_real_pf_qid 304 * @vf: pointer to the VF info 305 * @vsi_id: vsi id 306 * @queue_id: queue number 307 * 308 * wrapper function to get pf_queue_id handling ADq code as well 309 **/ 310 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) 311 { 312 int i; 313 314 if (vf->adq_enabled) { 315 /* Although VF considers all the queues(can be 1 to 16) as its 316 * own but they may actually belong to different VSIs(up to 4). 317 * We need to find which queues belongs to which VSI. 318 */ 319 for (i = 0; i < vf->num_tc; i++) { 320 if (queue_id < vf->ch[i].num_qps) { 321 vsi_id = vf->ch[i].vsi_id; 322 break; 323 } 324 /* find right queue id which is relative to a 325 * given VSI. 326 */ 327 queue_id -= vf->ch[i].num_qps; 328 } 329 } 330 331 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); 332 } 333 334 /** 335 * i40e_config_irq_link_list 336 * @vf: pointer to the VF info 337 * @vsi_id: id of VSI as given by the FW 338 * @vecmap: irq map info 339 * 340 * configure irq link list from the map 341 **/ 342 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 343 struct virtchnl_vector_map *vecmap) 344 { 345 unsigned long linklistmap = 0, tempmap; 346 struct i40e_pf *pf = vf->pf; 347 struct i40e_hw *hw = &pf->hw; 348 u16 vsi_queue_id, pf_queue_id; 349 enum i40e_queue_type qtype; 350 u16 next_q, vector_id, size; 351 u32 reg, reg_idx; 352 u16 itr_idx = 0; 353 354 vector_id = vecmap->vector_id; 355 /* setup the head */ 356 if (0 == vector_id) 357 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 358 else 359 reg_idx = I40E_VPINT_LNKLSTN( 360 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 361 (vector_id - 1)); 362 363 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 364 /* Special case - No queues mapped on this vector */ 365 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 366 goto irq_list_done; 367 } 368 tempmap = vecmap->rxq_map; 369 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 370 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 371 vsi_queue_id)); 372 } 373 374 tempmap = vecmap->txq_map; 375 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 376 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 377 vsi_queue_id + 1)); 378 } 379 380 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; 381 next_q = find_first_bit(&linklistmap, size); 382 if (unlikely(next_q == size)) 383 goto irq_list_done; 384 385 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 386 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 387 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); 388 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 389 390 wr32(hw, reg_idx, reg); 391 392 while (next_q < size) { 393 switch (qtype) { 394 case I40E_QUEUE_TYPE_RX: 395 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 396 itr_idx = vecmap->rxitr_idx; 397 break; 398 case I40E_QUEUE_TYPE_TX: 399 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 400 itr_idx = vecmap->txitr_idx; 401 break; 402 default: 403 break; 404 } 405 406 next_q = find_next_bit(&linklistmap, size, next_q + 1); 407 if (next_q < size) { 408 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 409 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 410 pf_queue_id = i40e_get_real_pf_qid(vf, 411 vsi_id, 412 vsi_queue_id); 413 } else { 414 pf_queue_id = I40E_QUEUE_END_OF_LIST; 415 qtype = 0; 416 } 417 418 /* format for the RQCTL & TQCTL regs is same */ 419 reg = (vector_id) | 420 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 421 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 422 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 423 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 424 wr32(hw, reg_idx, reg); 425 } 426 427 /* if the vf is running in polling mode and using interrupt zero, 428 * need to disable auto-mask on enabling zero interrupt for VFs. 429 */ 430 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 431 (vector_id == 0)) { 432 reg = rd32(hw, I40E_GLINT_CTL); 433 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 434 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 435 wr32(hw, I40E_GLINT_CTL, reg); 436 } 437 } 438 439 irq_list_done: 440 i40e_flush(hw); 441 } 442 443 /** 444 * i40e_release_iwarp_qvlist 445 * @vf: pointer to the VF. 446 * 447 **/ 448 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) 449 { 450 struct i40e_pf *pf = vf->pf; 451 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; 452 u32 msix_vf; 453 u32 i; 454 455 if (!vf->qvlist_info) 456 return; 457 458 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 459 for (i = 0; i < qvlist_info->num_vectors; i++) { 460 struct virtchnl_iwarp_qv_info *qv_info; 461 u32 next_q_index, next_q_type; 462 struct i40e_hw *hw = &pf->hw; 463 u32 v_idx, reg_idx, reg; 464 465 qv_info = &qvlist_info->qv_info[i]; 466 if (!qv_info) 467 continue; 468 v_idx = qv_info->v_idx; 469 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 470 /* Figure out the queue after CEQ and make that the 471 * first queue. 472 */ 473 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 474 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 475 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 476 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 477 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 478 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 479 480 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 481 reg = (next_q_index & 482 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 483 (next_q_type << 484 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 485 486 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 487 } 488 } 489 kfree(vf->qvlist_info); 490 vf->qvlist_info = NULL; 491 } 492 493 /** 494 * i40e_config_iwarp_qvlist 495 * @vf: pointer to the VF info 496 * @qvlist_info: queue and vector list 497 * 498 * Return 0 on success or < 0 on error 499 **/ 500 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, 501 struct virtchnl_iwarp_qvlist_info *qvlist_info) 502 { 503 struct i40e_pf *pf = vf->pf; 504 struct i40e_hw *hw = &pf->hw; 505 struct virtchnl_iwarp_qv_info *qv_info; 506 u32 v_idx, i, reg_idx, reg; 507 u32 next_q_idx, next_q_type; 508 u32 msix_vf; 509 int ret = 0; 510 511 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 512 513 if (qvlist_info->num_vectors > msix_vf) { 514 dev_warn(&pf->pdev->dev, 515 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 516 qvlist_info->num_vectors, 517 msix_vf); 518 ret = -EINVAL; 519 goto err_out; 520 } 521 522 kfree(vf->qvlist_info); 523 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info, 524 qvlist_info->num_vectors - 1), 525 GFP_KERNEL); 526 if (!vf->qvlist_info) { 527 ret = -ENOMEM; 528 goto err_out; 529 } 530 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 531 532 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 533 for (i = 0; i < qvlist_info->num_vectors; i++) { 534 qv_info = &qvlist_info->qv_info[i]; 535 if (!qv_info) 536 continue; 537 538 /* Validate vector id belongs to this vf */ 539 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 540 ret = -EINVAL; 541 goto err_free; 542 } 543 544 v_idx = qv_info->v_idx; 545 546 vf->qvlist_info->qv_info[i] = *qv_info; 547 548 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 549 /* We might be sharing the interrupt, so get the first queue 550 * index and type, push it down the list by adding the new 551 * queue on top. Also link it with the new queue in CEQCTL. 552 */ 553 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 554 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 555 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 556 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 557 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 558 559 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 560 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 561 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 562 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 563 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 564 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 565 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 566 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 567 568 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 569 reg = (qv_info->ceq_idx & 570 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 571 (I40E_QUEUE_TYPE_PE_CEQ << 572 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 573 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 574 } 575 576 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 577 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 578 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 579 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 580 581 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 582 } 583 } 584 585 return 0; 586 err_free: 587 kfree(vf->qvlist_info); 588 vf->qvlist_info = NULL; 589 err_out: 590 return ret; 591 } 592 593 /** 594 * i40e_config_vsi_tx_queue 595 * @vf: pointer to the VF info 596 * @vsi_id: id of VSI as provided by the FW 597 * @vsi_queue_id: vsi relative queue index 598 * @info: config. info 599 * 600 * configure tx queue 601 **/ 602 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 603 u16 vsi_queue_id, 604 struct virtchnl_txq_info *info) 605 { 606 struct i40e_pf *pf = vf->pf; 607 struct i40e_hw *hw = &pf->hw; 608 struct i40e_hmc_obj_txq tx_ctx; 609 struct i40e_vsi *vsi; 610 u16 pf_queue_id; 611 u32 qtx_ctl; 612 int ret = 0; 613 614 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 615 ret = -ENOENT; 616 goto error_context; 617 } 618 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 619 vsi = i40e_find_vsi_from_id(pf, vsi_id); 620 if (!vsi) { 621 ret = -ENOENT; 622 goto error_context; 623 } 624 625 /* clear the context structure first */ 626 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 627 628 /* only set the required fields */ 629 tx_ctx.base = info->dma_ring_addr / 128; 630 tx_ctx.qlen = info->ring_len; 631 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 632 tx_ctx.rdylist_act = 0; 633 tx_ctx.head_wb_ena = info->headwb_enabled; 634 tx_ctx.head_wb_addr = info->dma_headwb_addr; 635 636 /* clear the context in the HMC */ 637 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 638 if (ret) { 639 dev_err(&pf->pdev->dev, 640 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 641 pf_queue_id, ret); 642 ret = -ENOENT; 643 goto error_context; 644 } 645 646 /* set the context in the HMC */ 647 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 648 if (ret) { 649 dev_err(&pf->pdev->dev, 650 "Failed to set VF LAN Tx queue context %d error: %d\n", 651 pf_queue_id, ret); 652 ret = -ENOENT; 653 goto error_context; 654 } 655 656 /* associate this queue with the PCI VF function */ 657 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 658 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 659 & I40E_QTX_CTL_PF_INDX_MASK); 660 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 661 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 662 & I40E_QTX_CTL_VFVM_INDX_MASK); 663 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 664 i40e_flush(hw); 665 666 error_context: 667 return ret; 668 } 669 670 /** 671 * i40e_config_vsi_rx_queue 672 * @vf: pointer to the VF info 673 * @vsi_id: id of VSI as provided by the FW 674 * @vsi_queue_id: vsi relative queue index 675 * @info: config. info 676 * 677 * configure rx queue 678 **/ 679 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 680 u16 vsi_queue_id, 681 struct virtchnl_rxq_info *info) 682 { 683 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 684 struct i40e_pf *pf = vf->pf; 685 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 686 struct i40e_hw *hw = &pf->hw; 687 struct i40e_hmc_obj_rxq rx_ctx; 688 int ret = 0; 689 690 /* clear the context structure first */ 691 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 692 693 /* only set the required fields */ 694 rx_ctx.base = info->dma_ring_addr / 128; 695 rx_ctx.qlen = info->ring_len; 696 697 if (info->splithdr_enabled) { 698 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 699 I40E_RX_SPLIT_IP | 700 I40E_RX_SPLIT_TCP_UDP | 701 I40E_RX_SPLIT_SCTP; 702 /* header length validation */ 703 if (info->hdr_size > ((2 * 1024) - 64)) { 704 ret = -EINVAL; 705 goto error_param; 706 } 707 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 708 709 /* set split mode 10b */ 710 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 711 } 712 713 /* databuffer length validation */ 714 if (info->databuffer_size > ((16 * 1024) - 128)) { 715 ret = -EINVAL; 716 goto error_param; 717 } 718 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 719 720 /* max pkt. length validation */ 721 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 722 ret = -EINVAL; 723 goto error_param; 724 } 725 rx_ctx.rxmax = info->max_pkt_size; 726 727 /* if port VLAN is configured increase the max packet size */ 728 if (vsi->info.pvid) 729 rx_ctx.rxmax += VLAN_HLEN; 730 731 /* enable 32bytes desc always */ 732 rx_ctx.dsize = 1; 733 734 /* default values */ 735 rx_ctx.lrxqthresh = 1; 736 rx_ctx.crcstrip = 1; 737 rx_ctx.prefena = 1; 738 rx_ctx.l2tsel = 1; 739 740 /* clear the context in the HMC */ 741 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 742 if (ret) { 743 dev_err(&pf->pdev->dev, 744 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 745 pf_queue_id, ret); 746 ret = -ENOENT; 747 goto error_param; 748 } 749 750 /* set the context in the HMC */ 751 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 752 if (ret) { 753 dev_err(&pf->pdev->dev, 754 "Failed to set VF LAN Rx queue context %d error: %d\n", 755 pf_queue_id, ret); 756 ret = -ENOENT; 757 goto error_param; 758 } 759 760 error_param: 761 return ret; 762 } 763 764 /** 765 * i40e_alloc_vsi_res 766 * @vf: pointer to the VF info 767 * @idx: VSI index, applies only for ADq mode, zero otherwise 768 * 769 * alloc VF vsi context & resources 770 **/ 771 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 772 { 773 struct i40e_mac_filter *f = NULL; 774 struct i40e_pf *pf = vf->pf; 775 struct i40e_vsi *vsi; 776 u64 max_tx_rate = 0; 777 int ret = 0; 778 779 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 780 vf->vf_id); 781 782 if (!vsi) { 783 dev_err(&pf->pdev->dev, 784 "add vsi failed for VF %d, aq_err %d\n", 785 vf->vf_id, pf->hw.aq.asq_last_status); 786 ret = -ENOENT; 787 goto error_alloc_vsi_res; 788 } 789 790 if (!idx) { 791 u64 hena = i40e_pf_get_default_rss_hena(pf); 792 u8 broadcast[ETH_ALEN]; 793 794 vf->lan_vsi_idx = vsi->idx; 795 vf->lan_vsi_id = vsi->id; 796 /* If the port VLAN has been configured and then the 797 * VF driver was removed then the VSI port VLAN 798 * configuration was destroyed. Check if there is 799 * a port VLAN and restore the VSI configuration if 800 * needed. 801 */ 802 if (vf->port_vlan_id) 803 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 804 805 spin_lock_bh(&vsi->mac_filter_hash_lock); 806 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 807 f = i40e_add_mac_filter(vsi, 808 vf->default_lan_addr.addr); 809 if (!f) 810 dev_info(&pf->pdev->dev, 811 "Could not add MAC filter %pM for VF %d\n", 812 vf->default_lan_addr.addr, vf->vf_id); 813 } 814 eth_broadcast_addr(broadcast); 815 f = i40e_add_mac_filter(vsi, broadcast); 816 if (!f) 817 dev_info(&pf->pdev->dev, 818 "Could not allocate VF broadcast filter\n"); 819 spin_unlock_bh(&vsi->mac_filter_hash_lock); 820 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 821 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 822 /* program mac filter only for VF VSI */ 823 ret = i40e_sync_vsi_filters(vsi); 824 if (ret) 825 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 826 } 827 828 /* storing VSI index and id for ADq and don't apply the mac filter */ 829 if (vf->adq_enabled) { 830 vf->ch[idx].vsi_idx = vsi->idx; 831 vf->ch[idx].vsi_id = vsi->id; 832 } 833 834 /* Set VF bandwidth if specified */ 835 if (vf->tx_rate) { 836 max_tx_rate = vf->tx_rate; 837 } else if (vf->ch[idx].max_tx_rate) { 838 max_tx_rate = vf->ch[idx].max_tx_rate; 839 } 840 841 if (max_tx_rate) { 842 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 843 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 844 max_tx_rate, 0, NULL); 845 if (ret) 846 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 847 vf->vf_id, ret); 848 } 849 850 error_alloc_vsi_res: 851 return ret; 852 } 853 854 /** 855 * i40e_map_pf_queues_to_vsi 856 * @vf: pointer to the VF info 857 * 858 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 859 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 860 **/ 861 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 862 { 863 struct i40e_pf *pf = vf->pf; 864 struct i40e_hw *hw = &pf->hw; 865 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 866 u16 vsi_id, qps; 867 int i, j; 868 869 if (vf->adq_enabled) 870 num_tc = vf->num_tc; 871 872 for (i = 0; i < num_tc; i++) { 873 if (vf->adq_enabled) { 874 qps = vf->ch[i].num_qps; 875 vsi_id = vf->ch[i].vsi_id; 876 } else { 877 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 878 vsi_id = vf->lan_vsi_id; 879 } 880 881 for (j = 0; j < 7; j++) { 882 if (j * 2 >= qps) { 883 /* end of list */ 884 reg = 0x07FF07FF; 885 } else { 886 u16 qid = i40e_vc_get_pf_queue_id(vf, 887 vsi_id, 888 j * 2); 889 reg = qid; 890 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 891 (j * 2) + 1); 892 reg |= qid << 16; 893 } 894 i40e_write_rx_ctl(hw, 895 I40E_VSILAN_QTABLE(j, vsi_id), 896 reg); 897 } 898 } 899 } 900 901 /** 902 * i40e_map_pf_to_vf_queues 903 * @vf: pointer to the VF info 904 * 905 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 906 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 907 **/ 908 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 909 { 910 struct i40e_pf *pf = vf->pf; 911 struct i40e_hw *hw = &pf->hw; 912 u32 reg, total_qps = 0; 913 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 914 u16 vsi_id, qid; 915 int i, j; 916 917 if (vf->adq_enabled) 918 num_tc = vf->num_tc; 919 920 for (i = 0; i < num_tc; i++) { 921 if (vf->adq_enabled) { 922 qps = vf->ch[i].num_qps; 923 vsi_id = vf->ch[i].vsi_id; 924 } else { 925 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 926 vsi_id = vf->lan_vsi_id; 927 } 928 929 for (j = 0; j < qps; j++) { 930 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 931 932 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 933 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 934 reg); 935 total_qps++; 936 } 937 } 938 } 939 940 /** 941 * i40e_enable_vf_mappings 942 * @vf: pointer to the VF info 943 * 944 * enable VF mappings 945 **/ 946 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 947 { 948 struct i40e_pf *pf = vf->pf; 949 struct i40e_hw *hw = &pf->hw; 950 u32 reg; 951 952 /* Tell the hardware we're using noncontiguous mapping. HW requires 953 * that VF queues be mapped using this method, even when they are 954 * contiguous in real life 955 */ 956 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 957 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 958 959 /* enable VF vplan_qtable mappings */ 960 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 961 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 962 963 i40e_map_pf_to_vf_queues(vf); 964 i40e_map_pf_queues_to_vsi(vf); 965 966 i40e_flush(hw); 967 } 968 969 /** 970 * i40e_disable_vf_mappings 971 * @vf: pointer to the VF info 972 * 973 * disable VF mappings 974 **/ 975 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 976 { 977 struct i40e_pf *pf = vf->pf; 978 struct i40e_hw *hw = &pf->hw; 979 int i; 980 981 /* disable qp mappings */ 982 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 983 for (i = 0; i < I40E_MAX_VSI_QP; i++) 984 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 985 I40E_QUEUE_END_OF_LIST); 986 i40e_flush(hw); 987 } 988 989 /** 990 * i40e_free_vf_res 991 * @vf: pointer to the VF info 992 * 993 * free VF resources 994 **/ 995 static void i40e_free_vf_res(struct i40e_vf *vf) 996 { 997 struct i40e_pf *pf = vf->pf; 998 struct i40e_hw *hw = &pf->hw; 999 u32 reg_idx, reg; 1000 int i, j, msix_vf; 1001 1002 /* Start by disabling VF's configuration API to prevent the OS from 1003 * accessing the VF's VSI after it's freed / invalidated. 1004 */ 1005 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1006 1007 /* It's possible the VF had requeuested more queues than the default so 1008 * do the accounting here when we're about to free them. 1009 */ 1010 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 1011 pf->queues_left += vf->num_queue_pairs - 1012 I40E_DEFAULT_QUEUES_PER_VF; 1013 } 1014 1015 /* free vsi & disconnect it from the parent uplink */ 1016 if (vf->lan_vsi_idx) { 1017 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 1018 vf->lan_vsi_idx = 0; 1019 vf->lan_vsi_id = 0; 1020 } 1021 1022 /* do the accounting and remove additional ADq VSI's */ 1023 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 1024 for (j = 0; j < vf->num_tc; j++) { 1025 /* At this point VSI0 is already released so don't 1026 * release it again and only clear their values in 1027 * structure variables 1028 */ 1029 if (j) 1030 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 1031 vf->ch[j].vsi_idx = 0; 1032 vf->ch[j].vsi_id = 0; 1033 } 1034 } 1035 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 1036 1037 /* disable interrupts so the VF starts in a known state */ 1038 for (i = 0; i < msix_vf; i++) { 1039 /* format is same for both registers */ 1040 if (0 == i) 1041 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 1042 else 1043 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 1044 (vf->vf_id)) 1045 + (i - 1)); 1046 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 1047 i40e_flush(hw); 1048 } 1049 1050 /* clear the irq settings */ 1051 for (i = 0; i < msix_vf; i++) { 1052 /* format is same for both registers */ 1053 if (0 == i) 1054 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 1055 else 1056 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 1057 (vf->vf_id)) 1058 + (i - 1)); 1059 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 1060 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 1061 wr32(hw, reg_idx, reg); 1062 i40e_flush(hw); 1063 } 1064 /* reset some of the state variables keeping track of the resources */ 1065 vf->num_queue_pairs = 0; 1066 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1067 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1068 } 1069 1070 /** 1071 * i40e_alloc_vf_res 1072 * @vf: pointer to the VF info 1073 * 1074 * allocate VF resources 1075 **/ 1076 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1077 { 1078 struct i40e_pf *pf = vf->pf; 1079 int total_queue_pairs = 0; 1080 int ret, idx; 1081 1082 if (vf->num_req_queues && 1083 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1084 pf->num_vf_qps = vf->num_req_queues; 1085 else 1086 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1087 1088 /* allocate hw vsi context & associated resources */ 1089 ret = i40e_alloc_vsi_res(vf, 0); 1090 if (ret) 1091 goto error_alloc; 1092 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1093 1094 /* allocate additional VSIs based on tc information for ADq */ 1095 if (vf->adq_enabled) { 1096 if (pf->queues_left >= 1097 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1098 /* TC 0 always belongs to VF VSI */ 1099 for (idx = 1; idx < vf->num_tc; idx++) { 1100 ret = i40e_alloc_vsi_res(vf, idx); 1101 if (ret) 1102 goto error_alloc; 1103 } 1104 /* send correct number of queues */ 1105 total_queue_pairs = I40E_MAX_VF_QUEUES; 1106 } else { 1107 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1108 vf->vf_id); 1109 vf->adq_enabled = false; 1110 } 1111 } 1112 1113 /* We account for each VF to get a default number of queue pairs. If 1114 * the VF has now requested more, we need to account for that to make 1115 * certain we never request more queues than we actually have left in 1116 * HW. 1117 */ 1118 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1119 pf->queues_left -= 1120 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1121 1122 if (vf->trusted) 1123 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1124 else 1125 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1126 1127 /* store the total qps number for the runtime 1128 * VF req validation 1129 */ 1130 vf->num_queue_pairs = total_queue_pairs; 1131 1132 /* VF is now completely initialized */ 1133 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1134 1135 error_alloc: 1136 if (ret) 1137 i40e_free_vf_res(vf); 1138 1139 return ret; 1140 } 1141 1142 #define VF_DEVICE_STATUS 0xAA 1143 #define VF_TRANS_PENDING_MASK 0x20 1144 /** 1145 * i40e_quiesce_vf_pci 1146 * @vf: pointer to the VF structure 1147 * 1148 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1149 * if the transactions never clear. 1150 **/ 1151 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1152 { 1153 struct i40e_pf *pf = vf->pf; 1154 struct i40e_hw *hw = &pf->hw; 1155 int vf_abs_id, i; 1156 u32 reg; 1157 1158 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1159 1160 wr32(hw, I40E_PF_PCI_CIAA, 1161 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1162 for (i = 0; i < 100; i++) { 1163 reg = rd32(hw, I40E_PF_PCI_CIAD); 1164 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1165 return 0; 1166 udelay(1); 1167 } 1168 return -EIO; 1169 } 1170 1171 /** 1172 * __i40e_getnum_vf_vsi_vlan_filters 1173 * @vsi: pointer to the vsi 1174 * 1175 * called to get the number of VLANs offloaded on this VF 1176 **/ 1177 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1178 { 1179 struct i40e_mac_filter *f; 1180 u16 num_vlans = 0, bkt; 1181 1182 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1183 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1184 num_vlans++; 1185 } 1186 1187 return num_vlans; 1188 } 1189 1190 /** 1191 * i40e_getnum_vf_vsi_vlan_filters 1192 * @vsi: pointer to the vsi 1193 * 1194 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held 1195 **/ 1196 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1197 { 1198 int num_vlans; 1199 1200 spin_lock_bh(&vsi->mac_filter_hash_lock); 1201 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1202 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1203 1204 return num_vlans; 1205 } 1206 1207 /** 1208 * i40e_get_vlan_list_sync 1209 * @vsi: pointer to the VSI 1210 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1211 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1212 * This array is allocated here, but has to be freed in caller. 1213 * 1214 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1215 **/ 1216 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1217 s16 **vlan_list) 1218 { 1219 struct i40e_mac_filter *f; 1220 int i = 0; 1221 int bkt; 1222 1223 spin_lock_bh(&vsi->mac_filter_hash_lock); 1224 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi); 1225 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1226 if (!(*vlan_list)) 1227 goto err; 1228 1229 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1230 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1231 continue; 1232 (*vlan_list)[i++] = f->vlan; 1233 } 1234 err: 1235 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1236 } 1237 1238 /** 1239 * i40e_set_vsi_promisc 1240 * @vf: pointer to the VF struct 1241 * @seid: VSI number 1242 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1243 * for a given VLAN 1244 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1245 * for a given VLAN 1246 * @vl: List of VLANs - apply filter for given VLANs 1247 * @num_vlans: Number of elements in @vl 1248 **/ 1249 static i40e_status 1250 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1251 bool unicast_enable, s16 *vl, u16 num_vlans) 1252 { 1253 i40e_status aq_ret, aq_tmp = 0; 1254 struct i40e_pf *pf = vf->pf; 1255 struct i40e_hw *hw = &pf->hw; 1256 int i; 1257 1258 /* No VLAN to set promisc on, set on VSI */ 1259 if (!num_vlans || !vl) { 1260 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1261 multi_enable, 1262 NULL); 1263 if (aq_ret) { 1264 int aq_err = pf->hw.aq.asq_last_status; 1265 1266 dev_err(&pf->pdev->dev, 1267 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1268 vf->vf_id, 1269 i40e_stat_str(&pf->hw, aq_ret), 1270 i40e_aq_str(&pf->hw, aq_err)); 1271 1272 return aq_ret; 1273 } 1274 1275 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1276 unicast_enable, 1277 NULL, true); 1278 1279 if (aq_ret) { 1280 int aq_err = pf->hw.aq.asq_last_status; 1281 1282 dev_err(&pf->pdev->dev, 1283 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1284 vf->vf_id, 1285 i40e_stat_str(&pf->hw, aq_ret), 1286 i40e_aq_str(&pf->hw, aq_err)); 1287 } 1288 1289 return aq_ret; 1290 } 1291 1292 for (i = 0; i < num_vlans; i++) { 1293 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1294 multi_enable, 1295 vl[i], NULL); 1296 if (aq_ret) { 1297 int aq_err = pf->hw.aq.asq_last_status; 1298 1299 dev_err(&pf->pdev->dev, 1300 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1301 vf->vf_id, 1302 i40e_stat_str(&pf->hw, aq_ret), 1303 i40e_aq_str(&pf->hw, aq_err)); 1304 1305 if (!aq_tmp) 1306 aq_tmp = aq_ret; 1307 } 1308 1309 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1310 unicast_enable, 1311 vl[i], NULL); 1312 if (aq_ret) { 1313 int aq_err = pf->hw.aq.asq_last_status; 1314 1315 dev_err(&pf->pdev->dev, 1316 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1317 vf->vf_id, 1318 i40e_stat_str(&pf->hw, aq_ret), 1319 i40e_aq_str(&pf->hw, aq_err)); 1320 1321 if (!aq_tmp) 1322 aq_tmp = aq_ret; 1323 } 1324 } 1325 1326 if (aq_tmp) 1327 aq_ret = aq_tmp; 1328 1329 return aq_ret; 1330 } 1331 1332 /** 1333 * i40e_config_vf_promiscuous_mode 1334 * @vf: pointer to the VF info 1335 * @vsi_id: VSI id 1336 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1337 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1338 * 1339 * Called from the VF to configure the promiscuous mode of 1340 * VF vsis and from the VF reset path to reset promiscuous mode. 1341 **/ 1342 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1343 u16 vsi_id, 1344 bool allmulti, 1345 bool alluni) 1346 { 1347 i40e_status aq_ret = I40E_SUCCESS; 1348 struct i40e_pf *pf = vf->pf; 1349 struct i40e_vsi *vsi; 1350 u16 num_vlans; 1351 s16 *vl; 1352 1353 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1354 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1355 return I40E_ERR_PARAM; 1356 1357 if (vf->port_vlan_id) { 1358 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1359 alluni, &vf->port_vlan_id, 1); 1360 return aq_ret; 1361 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1362 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1363 1364 if (!vl) 1365 return I40E_ERR_NO_MEMORY; 1366 1367 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1368 vl, num_vlans); 1369 kfree(vl); 1370 return aq_ret; 1371 } 1372 1373 /* no VLANs to set on, set on VSI */ 1374 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1375 NULL, 0); 1376 return aq_ret; 1377 } 1378 1379 /** 1380 * i40e_sync_vfr_reset 1381 * @hw: pointer to hw struct 1382 * @vf_id: VF identifier 1383 * 1384 * Before trigger hardware reset, we need to know if no other process has 1385 * reserved the hardware for any reset operations. This check is done by 1386 * examining the status of the RSTAT1 register used to signal the reset. 1387 **/ 1388 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id) 1389 { 1390 u32 reg; 1391 int i; 1392 1393 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) { 1394 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) & 1395 I40E_VFINT_ICR0_ADMINQ_MASK; 1396 if (reg) 1397 return 0; 1398 1399 usleep_range(100, 200); 1400 } 1401 1402 return -EAGAIN; 1403 } 1404 1405 /** 1406 * i40e_trigger_vf_reset 1407 * @vf: pointer to the VF structure 1408 * @flr: VFLR was issued or not 1409 * 1410 * Trigger hardware to start a reset for a particular VF. Expects the caller 1411 * to wait the proper amount of time to allow hardware to reset the VF before 1412 * it cleans up and restores VF functionality. 1413 **/ 1414 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1415 { 1416 struct i40e_pf *pf = vf->pf; 1417 struct i40e_hw *hw = &pf->hw; 1418 u32 reg, reg_idx, bit_idx; 1419 bool vf_active; 1420 u32 radq; 1421 1422 /* warn the VF */ 1423 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1424 1425 /* Disable VF's configuration API during reset. The flag is re-enabled 1426 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1427 * It's normally disabled in i40e_free_vf_res(), but it's safer 1428 * to do it earlier to give some time to finish to any VF config 1429 * functions that may still be running at this point. 1430 */ 1431 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1432 1433 /* In the case of a VFLR, the HW has already reset the VF and we 1434 * just need to clean up, so don't hit the VFRTRIG register. 1435 */ 1436 if (!flr) { 1437 /* Sync VFR reset before trigger next one */ 1438 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) & 1439 I40E_VFINT_ICR0_ADMINQ_MASK; 1440 if (vf_active && !radq) 1441 /* waiting for finish reset by virtual driver */ 1442 if (i40e_sync_vfr_reset(hw, vf->vf_id)) 1443 dev_info(&pf->pdev->dev, 1444 "Reset VF %d never finished\n", 1445 vf->vf_id); 1446 1447 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting 1448 * in progress state in rstat1 register. 1449 */ 1450 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1451 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1452 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1453 i40e_flush(hw); 1454 } 1455 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1456 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1457 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1458 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1459 i40e_flush(hw); 1460 1461 if (i40e_quiesce_vf_pci(vf)) 1462 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1463 vf->vf_id); 1464 } 1465 1466 /** 1467 * i40e_cleanup_reset_vf 1468 * @vf: pointer to the VF structure 1469 * 1470 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1471 * have verified whether the reset is finished properly, and ensure the 1472 * minimum amount of wait time has passed. 1473 **/ 1474 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1475 { 1476 struct i40e_pf *pf = vf->pf; 1477 struct i40e_hw *hw = &pf->hw; 1478 u32 reg; 1479 1480 /* disable promisc modes in case they were enabled */ 1481 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1482 1483 /* free VF resources to begin resetting the VSI state */ 1484 i40e_free_vf_res(vf); 1485 1486 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1487 * By doing this we allow HW to access VF memory at any point. If we 1488 * did it any sooner, HW could access memory while it was being freed 1489 * in i40e_free_vf_res(), causing an IOMMU fault. 1490 * 1491 * On the other hand, this needs to be done ASAP, because the VF driver 1492 * is waiting for this to happen and may report a timeout. It's 1493 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1494 * it. 1495 */ 1496 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1497 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1498 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1499 1500 /* reallocate VF resources to finish resetting the VSI state */ 1501 if (!i40e_alloc_vf_res(vf)) { 1502 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1503 i40e_enable_vf_mappings(vf); 1504 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1505 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1506 /* Do not notify the client during VF init */ 1507 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1508 &vf->vf_states)) 1509 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1510 vf->num_vlan = 0; 1511 } 1512 1513 /* Tell the VF driver the reset is done. This needs to be done only 1514 * after VF has been fully initialized, because the VF driver may 1515 * request resources immediately after setting this flag. 1516 */ 1517 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1518 } 1519 1520 /** 1521 * i40e_reset_vf 1522 * @vf: pointer to the VF structure 1523 * @flr: VFLR was issued or not 1524 * 1525 * Returns true if the VF is in reset, resets successfully, or resets 1526 * are disabled and false otherwise. 1527 **/ 1528 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1529 { 1530 struct i40e_pf *pf = vf->pf; 1531 struct i40e_hw *hw = &pf->hw; 1532 bool rsd = false; 1533 u32 reg; 1534 int i; 1535 1536 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state)) 1537 return true; 1538 1539 /* If the VFs have been disabled, this means something else is 1540 * resetting the VF, so we shouldn't continue. 1541 */ 1542 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1543 return true; 1544 1545 i40e_trigger_vf_reset(vf, flr); 1546 1547 /* poll VPGEN_VFRSTAT reg to make sure 1548 * that reset is complete 1549 */ 1550 for (i = 0; i < 10; i++) { 1551 /* VF reset requires driver to first reset the VF and then 1552 * poll the status register to make sure that the reset 1553 * completed successfully. Due to internal HW FIFO flushes, 1554 * we must wait 10ms before the register will be valid. 1555 */ 1556 usleep_range(10000, 20000); 1557 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1558 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1559 rsd = true; 1560 break; 1561 } 1562 } 1563 1564 if (flr) 1565 usleep_range(10000, 20000); 1566 1567 if (!rsd) 1568 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1569 vf->vf_id); 1570 usleep_range(10000, 20000); 1571 1572 /* On initial reset, we don't have any queues to disable */ 1573 if (vf->lan_vsi_idx != 0) 1574 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1575 1576 i40e_cleanup_reset_vf(vf); 1577 1578 i40e_flush(hw); 1579 clear_bit(__I40E_VF_DISABLE, pf->state); 1580 1581 return true; 1582 } 1583 1584 /** 1585 * i40e_reset_all_vfs 1586 * @pf: pointer to the PF structure 1587 * @flr: VFLR was issued or not 1588 * 1589 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1590 * VF, then do all the waiting in one chunk, and finally finish restoring each 1591 * VF after the wait. This is useful during PF routines which need to reset 1592 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1593 * 1594 * Returns true if any VFs were reset, and false otherwise. 1595 **/ 1596 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1597 { 1598 struct i40e_hw *hw = &pf->hw; 1599 struct i40e_vf *vf; 1600 int i, v; 1601 u32 reg; 1602 1603 /* If we don't have any VFs, then there is nothing to reset */ 1604 if (!pf->num_alloc_vfs) 1605 return false; 1606 1607 /* If VFs have been disabled, there is no need to reset */ 1608 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1609 return false; 1610 1611 /* Begin reset on all VFs at once */ 1612 for (v = 0; v < pf->num_alloc_vfs; v++) 1613 i40e_trigger_vf_reset(&pf->vf[v], flr); 1614 1615 /* HW requires some time to make sure it can flush the FIFO for a VF 1616 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1617 * sequence to make sure that it has completed. We'll keep track of 1618 * the VFs using a simple iterator that increments once that VF has 1619 * finished resetting. 1620 */ 1621 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1622 usleep_range(10000, 20000); 1623 1624 /* Check each VF in sequence, beginning with the VF to fail 1625 * the previous check. 1626 */ 1627 while (v < pf->num_alloc_vfs) { 1628 vf = &pf->vf[v]; 1629 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1630 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1631 break; 1632 1633 /* If the current VF has finished resetting, move on 1634 * to the next VF in sequence. 1635 */ 1636 v++; 1637 } 1638 } 1639 1640 if (flr) 1641 usleep_range(10000, 20000); 1642 1643 /* Display a warning if at least one VF didn't manage to reset in 1644 * time, but continue on with the operation. 1645 */ 1646 if (v < pf->num_alloc_vfs) 1647 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1648 pf->vf[v].vf_id); 1649 usleep_range(10000, 20000); 1650 1651 /* Begin disabling all the rings associated with VFs, but do not wait 1652 * between each VF. 1653 */ 1654 for (v = 0; v < pf->num_alloc_vfs; v++) { 1655 /* On initial reset, we don't have any queues to disable */ 1656 if (pf->vf[v].lan_vsi_idx == 0) 1657 continue; 1658 1659 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1660 } 1661 1662 /* Now that we've notified HW to disable all of the VF rings, wait 1663 * until they finish. 1664 */ 1665 for (v = 0; v < pf->num_alloc_vfs; v++) { 1666 /* On initial reset, we don't have any queues to disable */ 1667 if (pf->vf[v].lan_vsi_idx == 0) 1668 continue; 1669 1670 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1671 } 1672 1673 /* Hw may need up to 50ms to finish disabling the RX queues. We 1674 * minimize the wait by delaying only once for all VFs. 1675 */ 1676 mdelay(50); 1677 1678 /* Finish the reset on each VF */ 1679 for (v = 0; v < pf->num_alloc_vfs; v++) 1680 i40e_cleanup_reset_vf(&pf->vf[v]); 1681 1682 i40e_flush(hw); 1683 clear_bit(__I40E_VF_DISABLE, pf->state); 1684 1685 return true; 1686 } 1687 1688 /** 1689 * i40e_free_vfs 1690 * @pf: pointer to the PF structure 1691 * 1692 * free VF resources 1693 **/ 1694 void i40e_free_vfs(struct i40e_pf *pf) 1695 { 1696 struct i40e_hw *hw = &pf->hw; 1697 u32 reg_idx, bit_idx; 1698 int i, tmp, vf_id; 1699 1700 if (!pf->vf) 1701 return; 1702 1703 set_bit(__I40E_VFS_RELEASING, pf->state); 1704 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1705 usleep_range(1000, 2000); 1706 1707 i40e_notify_client_of_vf_enable(pf, 0); 1708 1709 /* Disable IOV before freeing resources. This lets any VF drivers 1710 * running in the host get themselves cleaned up before we yank 1711 * the carpet out from underneath their feet. 1712 */ 1713 if (!pci_vfs_assigned(pf->pdev)) 1714 pci_disable_sriov(pf->pdev); 1715 else 1716 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1717 1718 /* Amortize wait time by stopping all VFs at the same time */ 1719 for (i = 0; i < pf->num_alloc_vfs; i++) { 1720 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1721 continue; 1722 1723 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1724 } 1725 1726 for (i = 0; i < pf->num_alloc_vfs; i++) { 1727 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1728 continue; 1729 1730 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1731 } 1732 1733 /* free up VF resources */ 1734 tmp = pf->num_alloc_vfs; 1735 pf->num_alloc_vfs = 0; 1736 for (i = 0; i < tmp; i++) { 1737 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1738 i40e_free_vf_res(&pf->vf[i]); 1739 /* disable qp mappings */ 1740 i40e_disable_vf_mappings(&pf->vf[i]); 1741 } 1742 1743 kfree(pf->vf); 1744 pf->vf = NULL; 1745 1746 /* This check is for when the driver is unloaded while VFs are 1747 * assigned. Setting the number of VFs to 0 through sysfs is caught 1748 * before this function ever gets called. 1749 */ 1750 if (!pci_vfs_assigned(pf->pdev)) { 1751 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1752 * work correctly when SR-IOV gets re-enabled. 1753 */ 1754 for (vf_id = 0; vf_id < tmp; vf_id++) { 1755 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1756 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1757 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1758 } 1759 } 1760 clear_bit(__I40E_VF_DISABLE, pf->state); 1761 clear_bit(__I40E_VFS_RELEASING, pf->state); 1762 } 1763 1764 #ifdef CONFIG_PCI_IOV 1765 /** 1766 * i40e_alloc_vfs 1767 * @pf: pointer to the PF structure 1768 * @num_alloc_vfs: number of VFs to allocate 1769 * 1770 * allocate VF resources 1771 **/ 1772 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1773 { 1774 struct i40e_vf *vfs; 1775 int i, ret = 0; 1776 1777 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1778 i40e_irq_dynamic_disable_icr0(pf); 1779 1780 /* Check to see if we're just allocating resources for extant VFs */ 1781 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1782 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1783 if (ret) { 1784 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1785 pf->num_alloc_vfs = 0; 1786 goto err_iov; 1787 } 1788 } 1789 /* allocate memory */ 1790 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1791 if (!vfs) { 1792 ret = -ENOMEM; 1793 goto err_alloc; 1794 } 1795 pf->vf = vfs; 1796 1797 /* apply default profile */ 1798 for (i = 0; i < num_alloc_vfs; i++) { 1799 vfs[i].pf = pf; 1800 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1801 vfs[i].vf_id = i; 1802 1803 /* assign default capabilities */ 1804 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1805 vfs[i].spoofchk = true; 1806 1807 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1808 1809 } 1810 pf->num_alloc_vfs = num_alloc_vfs; 1811 1812 /* VF resources get allocated during reset */ 1813 i40e_reset_all_vfs(pf, false); 1814 1815 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1816 1817 err_alloc: 1818 if (ret) 1819 i40e_free_vfs(pf); 1820 err_iov: 1821 /* Re-enable interrupt 0. */ 1822 i40e_irq_dynamic_enable_icr0(pf); 1823 return ret; 1824 } 1825 1826 #endif 1827 /** 1828 * i40e_pci_sriov_enable 1829 * @pdev: pointer to a pci_dev structure 1830 * @num_vfs: number of VFs to allocate 1831 * 1832 * Enable or change the number of VFs 1833 **/ 1834 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1835 { 1836 #ifdef CONFIG_PCI_IOV 1837 struct i40e_pf *pf = pci_get_drvdata(pdev); 1838 int pre_existing_vfs = pci_num_vf(pdev); 1839 int err = 0; 1840 1841 if (test_bit(__I40E_TESTING, pf->state)) { 1842 dev_warn(&pdev->dev, 1843 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1844 err = -EPERM; 1845 goto err_out; 1846 } 1847 1848 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1849 i40e_free_vfs(pf); 1850 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1851 goto out; 1852 1853 if (num_vfs > pf->num_req_vfs) { 1854 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1855 num_vfs, pf->num_req_vfs); 1856 err = -EPERM; 1857 goto err_out; 1858 } 1859 1860 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1861 err = i40e_alloc_vfs(pf, num_vfs); 1862 if (err) { 1863 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1864 goto err_out; 1865 } 1866 1867 out: 1868 return num_vfs; 1869 1870 err_out: 1871 return err; 1872 #endif 1873 return 0; 1874 } 1875 1876 /** 1877 * i40e_pci_sriov_configure 1878 * @pdev: pointer to a pci_dev structure 1879 * @num_vfs: number of VFs to allocate 1880 * 1881 * Enable or change the number of VFs. Called when the user updates the number 1882 * of VFs in sysfs. 1883 **/ 1884 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1885 { 1886 struct i40e_pf *pf = pci_get_drvdata(pdev); 1887 int ret = 0; 1888 1889 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1890 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1891 return -EAGAIN; 1892 } 1893 1894 if (num_vfs) { 1895 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1896 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1897 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1898 } 1899 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1900 goto sriov_configure_out; 1901 } 1902 1903 if (!pci_vfs_assigned(pf->pdev)) { 1904 i40e_free_vfs(pf); 1905 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1906 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG); 1907 } else { 1908 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1909 ret = -EINVAL; 1910 goto sriov_configure_out; 1911 } 1912 sriov_configure_out: 1913 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1914 return ret; 1915 } 1916 1917 /***********************virtual channel routines******************/ 1918 1919 /** 1920 * i40e_vc_send_msg_to_vf 1921 * @vf: pointer to the VF info 1922 * @v_opcode: virtual channel opcode 1923 * @v_retval: virtual channel return value 1924 * @msg: pointer to the msg buffer 1925 * @msglen: msg length 1926 * 1927 * send msg to VF 1928 **/ 1929 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1930 u32 v_retval, u8 *msg, u16 msglen) 1931 { 1932 struct i40e_pf *pf; 1933 struct i40e_hw *hw; 1934 int abs_vf_id; 1935 i40e_status aq_ret; 1936 1937 /* validate the request */ 1938 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1939 return -EINVAL; 1940 1941 pf = vf->pf; 1942 hw = &pf->hw; 1943 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1944 1945 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1946 msg, msglen, NULL); 1947 if (aq_ret) { 1948 dev_info(&pf->pdev->dev, 1949 "Unable to send the message to VF %d aq_err %d\n", 1950 vf->vf_id, pf->hw.aq.asq_last_status); 1951 return -EIO; 1952 } 1953 1954 return 0; 1955 } 1956 1957 /** 1958 * i40e_vc_send_resp_to_vf 1959 * @vf: pointer to the VF info 1960 * @opcode: operation code 1961 * @retval: return value 1962 * 1963 * send resp msg to VF 1964 **/ 1965 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1966 enum virtchnl_ops opcode, 1967 i40e_status retval) 1968 { 1969 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1970 } 1971 1972 /** 1973 * i40e_sync_vf_state 1974 * @vf: pointer to the VF info 1975 * @state: VF state 1976 * 1977 * Called from a VF message to synchronize the service with a potential 1978 * VF reset state 1979 **/ 1980 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state) 1981 { 1982 int i; 1983 1984 /* When handling some messages, it needs VF state to be set. 1985 * It is possible that this flag is cleared during VF reset, 1986 * so there is a need to wait until the end of the reset to 1987 * handle the request message correctly. 1988 */ 1989 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) { 1990 if (test_bit(state, &vf->vf_states)) 1991 return true; 1992 usleep_range(10000, 20000); 1993 } 1994 1995 return test_bit(state, &vf->vf_states); 1996 } 1997 1998 /** 1999 * i40e_vc_get_version_msg 2000 * @vf: pointer to the VF info 2001 * @msg: pointer to the msg buffer 2002 * 2003 * called from the VF to request the API version used by the PF 2004 **/ 2005 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 2006 { 2007 struct virtchnl_version_info info = { 2008 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 2009 }; 2010 2011 vf->vf_ver = *(struct virtchnl_version_info *)msg; 2012 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 2013 if (VF_IS_V10(&vf->vf_ver)) 2014 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 2015 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 2016 I40E_SUCCESS, (u8 *)&info, 2017 sizeof(struct virtchnl_version_info)); 2018 } 2019 2020 /** 2021 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 2022 * @vf: pointer to VF structure 2023 **/ 2024 static void i40e_del_qch(struct i40e_vf *vf) 2025 { 2026 struct i40e_pf *pf = vf->pf; 2027 int i; 2028 2029 /* first element in the array belongs to primary VF VSI and we shouldn't 2030 * delete it. We should however delete the rest of the VSIs created 2031 */ 2032 for (i = 1; i < vf->num_tc; i++) { 2033 if (vf->ch[i].vsi_idx) { 2034 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 2035 vf->ch[i].vsi_idx = 0; 2036 vf->ch[i].vsi_id = 0; 2037 } 2038 } 2039 } 2040 2041 /** 2042 * i40e_vc_get_vf_resources_msg 2043 * @vf: pointer to the VF info 2044 * @msg: pointer to the msg buffer 2045 * 2046 * called from the VF to request its resources 2047 **/ 2048 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 2049 { 2050 struct virtchnl_vf_resource *vfres = NULL; 2051 struct i40e_pf *pf = vf->pf; 2052 i40e_status aq_ret = 0; 2053 struct i40e_vsi *vsi; 2054 int num_vsis = 1; 2055 size_t len = 0; 2056 int ret; 2057 2058 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) { 2059 aq_ret = I40E_ERR_PARAM; 2060 goto err; 2061 } 2062 2063 len = struct_size(vfres, vsi_res, num_vsis); 2064 vfres = kzalloc(len, GFP_KERNEL); 2065 if (!vfres) { 2066 aq_ret = I40E_ERR_NO_MEMORY; 2067 len = 0; 2068 goto err; 2069 } 2070 if (VF_IS_V11(&vf->vf_ver)) 2071 vf->driver_caps = *(u32 *)msg; 2072 else 2073 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 2074 VIRTCHNL_VF_OFFLOAD_RSS_REG | 2075 VIRTCHNL_VF_OFFLOAD_VLAN; 2076 2077 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 2078 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; 2079 vsi = pf->vsi[vf->lan_vsi_idx]; 2080 if (!vsi->info.pvid) 2081 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 2082 2083 if (i40e_vf_client_capable(pf, vf->vf_id) && 2084 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 2085 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 2086 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2087 } else { 2088 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 2089 } 2090 2091 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 2092 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 2093 } else { 2094 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 2095 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 2096 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 2097 else 2098 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 2099 } 2100 2101 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 2102 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 2103 vfres->vf_cap_flags |= 2104 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 2105 } 2106 2107 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 2108 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 2109 2110 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 2111 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 2112 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 2113 2114 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 2115 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 2116 dev_err(&pf->pdev->dev, 2117 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 2118 vf->vf_id); 2119 aq_ret = I40E_ERR_PARAM; 2120 goto err; 2121 } 2122 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 2123 } 2124 2125 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 2126 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 2127 vfres->vf_cap_flags |= 2128 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 2129 } 2130 2131 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 2132 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 2133 2134 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2135 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2136 2137 vfres->num_vsis = num_vsis; 2138 vfres->num_queue_pairs = vf->num_queue_pairs; 2139 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2140 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2141 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2142 2143 if (vf->lan_vsi_idx) { 2144 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2145 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2146 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2147 /* VFs only use TC 0 */ 2148 vfres->vsi_res[0].qset_handle 2149 = le16_to_cpu(vsi->info.qs_handle[0]); 2150 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2151 vf->default_lan_addr.addr); 2152 } 2153 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2154 2155 err: 2156 /* send the response back to the VF */ 2157 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2158 aq_ret, (u8 *)vfres, len); 2159 2160 kfree(vfres); 2161 return ret; 2162 } 2163 2164 /** 2165 * i40e_vc_config_promiscuous_mode_msg 2166 * @vf: pointer to the VF info 2167 * @msg: pointer to the msg buffer 2168 * 2169 * called from the VF to configure the promiscuous mode of 2170 * VF vsis 2171 **/ 2172 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2173 { 2174 struct virtchnl_promisc_info *info = 2175 (struct virtchnl_promisc_info *)msg; 2176 struct i40e_pf *pf = vf->pf; 2177 i40e_status aq_ret = 0; 2178 bool allmulti = false; 2179 bool alluni = false; 2180 2181 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2182 aq_ret = I40E_ERR_PARAM; 2183 goto err_out; 2184 } 2185 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2186 dev_err(&pf->pdev->dev, 2187 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2188 vf->vf_id); 2189 2190 /* Lie to the VF on purpose, because this is an error we can 2191 * ignore. Unprivileged VF is not a virtual channel error. 2192 */ 2193 aq_ret = 0; 2194 goto err_out; 2195 } 2196 2197 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2198 aq_ret = I40E_ERR_PARAM; 2199 goto err_out; 2200 } 2201 2202 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2203 aq_ret = I40E_ERR_PARAM; 2204 goto err_out; 2205 } 2206 2207 /* Multicast promiscuous handling*/ 2208 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2209 allmulti = true; 2210 2211 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2212 alluni = true; 2213 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2214 alluni); 2215 if (aq_ret) 2216 goto err_out; 2217 2218 if (allmulti) { 2219 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2220 &vf->vf_states)) 2221 dev_info(&pf->pdev->dev, 2222 "VF %d successfully set multicast promiscuous mode\n", 2223 vf->vf_id); 2224 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2225 &vf->vf_states)) 2226 dev_info(&pf->pdev->dev, 2227 "VF %d successfully unset multicast promiscuous mode\n", 2228 vf->vf_id); 2229 2230 if (alluni) { 2231 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2232 &vf->vf_states)) 2233 dev_info(&pf->pdev->dev, 2234 "VF %d successfully set unicast promiscuous mode\n", 2235 vf->vf_id); 2236 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2237 &vf->vf_states)) 2238 dev_info(&pf->pdev->dev, 2239 "VF %d successfully unset unicast promiscuous mode\n", 2240 vf->vf_id); 2241 2242 err_out: 2243 /* send the response to the VF */ 2244 return i40e_vc_send_resp_to_vf(vf, 2245 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2246 aq_ret); 2247 } 2248 2249 /** 2250 * i40e_vc_config_queues_msg 2251 * @vf: pointer to the VF info 2252 * @msg: pointer to the msg buffer 2253 * 2254 * called from the VF to configure the rx/tx 2255 * queues 2256 **/ 2257 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2258 { 2259 struct virtchnl_vsi_queue_config_info *qci = 2260 (struct virtchnl_vsi_queue_config_info *)msg; 2261 struct virtchnl_queue_pair_info *qpi; 2262 u16 vsi_id, vsi_queue_id = 0; 2263 struct i40e_pf *pf = vf->pf; 2264 i40e_status aq_ret = 0; 2265 int i, j = 0, idx = 0; 2266 struct i40e_vsi *vsi; 2267 u16 num_qps_all = 0; 2268 2269 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2270 aq_ret = I40E_ERR_PARAM; 2271 goto error_param; 2272 } 2273 2274 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2275 aq_ret = I40E_ERR_PARAM; 2276 goto error_param; 2277 } 2278 2279 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2280 aq_ret = I40E_ERR_PARAM; 2281 goto error_param; 2282 } 2283 2284 if (vf->adq_enabled) { 2285 for (i = 0; i < I40E_MAX_VF_VSI; i++) 2286 num_qps_all += vf->ch[i].num_qps; 2287 if (num_qps_all != qci->num_queue_pairs) { 2288 aq_ret = I40E_ERR_PARAM; 2289 goto error_param; 2290 } 2291 } 2292 2293 vsi_id = qci->vsi_id; 2294 2295 for (i = 0; i < qci->num_queue_pairs; i++) { 2296 qpi = &qci->qpair[i]; 2297 2298 if (!vf->adq_enabled) { 2299 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2300 qpi->txq.queue_id)) { 2301 aq_ret = I40E_ERR_PARAM; 2302 goto error_param; 2303 } 2304 2305 vsi_queue_id = qpi->txq.queue_id; 2306 2307 if (qpi->txq.vsi_id != qci->vsi_id || 2308 qpi->rxq.vsi_id != qci->vsi_id || 2309 qpi->rxq.queue_id != vsi_queue_id) { 2310 aq_ret = I40E_ERR_PARAM; 2311 goto error_param; 2312 } 2313 } 2314 2315 if (vf->adq_enabled) { 2316 if (idx >= ARRAY_SIZE(vf->ch)) { 2317 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2318 goto error_param; 2319 } 2320 vsi_id = vf->ch[idx].vsi_id; 2321 } 2322 2323 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2324 &qpi->rxq) || 2325 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2326 &qpi->txq)) { 2327 aq_ret = I40E_ERR_PARAM; 2328 goto error_param; 2329 } 2330 2331 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2332 * VF does not know about these additional VSIs and all 2333 * it cares is about its own queues. PF configures these queues 2334 * to its appropriate VSIs based on TC mapping 2335 */ 2336 if (vf->adq_enabled) { 2337 if (idx >= ARRAY_SIZE(vf->ch)) { 2338 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2339 goto error_param; 2340 } 2341 if (j == (vf->ch[idx].num_qps - 1)) { 2342 idx++; 2343 j = 0; /* resetting the queue count */ 2344 vsi_queue_id = 0; 2345 } else { 2346 j++; 2347 vsi_queue_id++; 2348 } 2349 } 2350 } 2351 /* set vsi num_queue_pairs in use to num configured by VF */ 2352 if (!vf->adq_enabled) { 2353 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2354 qci->num_queue_pairs; 2355 } else { 2356 for (i = 0; i < vf->num_tc; i++) { 2357 vsi = pf->vsi[vf->ch[i].vsi_idx]; 2358 vsi->num_queue_pairs = vf->ch[i].num_qps; 2359 2360 if (i40e_update_adq_vsi_queues(vsi, i)) { 2361 aq_ret = I40E_ERR_CONFIG; 2362 goto error_param; 2363 } 2364 } 2365 } 2366 2367 error_param: 2368 /* send the response to the VF */ 2369 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2370 aq_ret); 2371 } 2372 2373 /** 2374 * i40e_validate_queue_map - check queue map is valid 2375 * @vf: the VF structure pointer 2376 * @vsi_id: vsi id 2377 * @queuemap: Tx or Rx queue map 2378 * 2379 * check if Tx or Rx queue map is valid 2380 **/ 2381 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2382 unsigned long queuemap) 2383 { 2384 u16 vsi_queue_id, queue_id; 2385 2386 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2387 if (vf->adq_enabled) { 2388 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2389 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2390 } else { 2391 queue_id = vsi_queue_id; 2392 } 2393 2394 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2395 return -EINVAL; 2396 } 2397 2398 return 0; 2399 } 2400 2401 /** 2402 * i40e_vc_config_irq_map_msg 2403 * @vf: pointer to the VF info 2404 * @msg: pointer to the msg buffer 2405 * 2406 * called from the VF to configure the irq to 2407 * queue map 2408 **/ 2409 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2410 { 2411 struct virtchnl_irq_map_info *irqmap_info = 2412 (struct virtchnl_irq_map_info *)msg; 2413 struct virtchnl_vector_map *map; 2414 u16 vsi_id; 2415 i40e_status aq_ret = 0; 2416 int i; 2417 2418 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2419 aq_ret = I40E_ERR_PARAM; 2420 goto error_param; 2421 } 2422 2423 if (irqmap_info->num_vectors > 2424 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2425 aq_ret = I40E_ERR_PARAM; 2426 goto error_param; 2427 } 2428 2429 for (i = 0; i < irqmap_info->num_vectors; i++) { 2430 map = &irqmap_info->vecmap[i]; 2431 /* validate msg params */ 2432 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2433 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2434 aq_ret = I40E_ERR_PARAM; 2435 goto error_param; 2436 } 2437 vsi_id = map->vsi_id; 2438 2439 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2440 aq_ret = I40E_ERR_PARAM; 2441 goto error_param; 2442 } 2443 2444 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2445 aq_ret = I40E_ERR_PARAM; 2446 goto error_param; 2447 } 2448 2449 i40e_config_irq_link_list(vf, vsi_id, map); 2450 } 2451 error_param: 2452 /* send the response to the VF */ 2453 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2454 aq_ret); 2455 } 2456 2457 /** 2458 * i40e_ctrl_vf_tx_rings 2459 * @vsi: the SRIOV VSI being configured 2460 * @q_map: bit map of the queues to be enabled 2461 * @enable: start or stop the queue 2462 **/ 2463 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2464 bool enable) 2465 { 2466 struct i40e_pf *pf = vsi->back; 2467 int ret = 0; 2468 u16 q_id; 2469 2470 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2471 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2472 vsi->base_queue + q_id, 2473 false /*is xdp*/, enable); 2474 if (ret) 2475 break; 2476 } 2477 return ret; 2478 } 2479 2480 /** 2481 * i40e_ctrl_vf_rx_rings 2482 * @vsi: the SRIOV VSI being configured 2483 * @q_map: bit map of the queues to be enabled 2484 * @enable: start or stop the queue 2485 **/ 2486 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2487 bool enable) 2488 { 2489 struct i40e_pf *pf = vsi->back; 2490 int ret = 0; 2491 u16 q_id; 2492 2493 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2494 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2495 enable); 2496 if (ret) 2497 break; 2498 } 2499 return ret; 2500 } 2501 2502 /** 2503 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2504 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2505 * 2506 * Returns true if validation was successful, else false. 2507 */ 2508 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2509 { 2510 if ((!vqs->rx_queues && !vqs->tx_queues) || 2511 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2512 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2513 return false; 2514 2515 return true; 2516 } 2517 2518 /** 2519 * i40e_vc_enable_queues_msg 2520 * @vf: pointer to the VF info 2521 * @msg: pointer to the msg buffer 2522 * 2523 * called from the VF to enable all or specific queue(s) 2524 **/ 2525 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2526 { 2527 struct virtchnl_queue_select *vqs = 2528 (struct virtchnl_queue_select *)msg; 2529 struct i40e_pf *pf = vf->pf; 2530 i40e_status aq_ret = 0; 2531 int i; 2532 2533 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2534 aq_ret = I40E_ERR_PARAM; 2535 goto error_param; 2536 } 2537 2538 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2539 aq_ret = I40E_ERR_PARAM; 2540 goto error_param; 2541 } 2542 2543 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2544 aq_ret = I40E_ERR_PARAM; 2545 goto error_param; 2546 } 2547 2548 /* Use the queue bit map sent by the VF */ 2549 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2550 true)) { 2551 aq_ret = I40E_ERR_TIMEOUT; 2552 goto error_param; 2553 } 2554 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2555 true)) { 2556 aq_ret = I40E_ERR_TIMEOUT; 2557 goto error_param; 2558 } 2559 2560 /* need to start the rings for additional ADq VSI's as well */ 2561 if (vf->adq_enabled) { 2562 /* zero belongs to LAN VSI */ 2563 for (i = 1; i < vf->num_tc; i++) { 2564 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2565 aq_ret = I40E_ERR_TIMEOUT; 2566 } 2567 } 2568 2569 error_param: 2570 /* send the response to the VF */ 2571 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2572 aq_ret); 2573 } 2574 2575 /** 2576 * i40e_vc_disable_queues_msg 2577 * @vf: pointer to the VF info 2578 * @msg: pointer to the msg buffer 2579 * 2580 * called from the VF to disable all or specific 2581 * queue(s) 2582 **/ 2583 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2584 { 2585 struct virtchnl_queue_select *vqs = 2586 (struct virtchnl_queue_select *)msg; 2587 struct i40e_pf *pf = vf->pf; 2588 i40e_status aq_ret = 0; 2589 2590 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2591 aq_ret = I40E_ERR_PARAM; 2592 goto error_param; 2593 } 2594 2595 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2596 aq_ret = I40E_ERR_PARAM; 2597 goto error_param; 2598 } 2599 2600 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2601 aq_ret = I40E_ERR_PARAM; 2602 goto error_param; 2603 } 2604 2605 /* Use the queue bit map sent by the VF */ 2606 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2607 false)) { 2608 aq_ret = I40E_ERR_TIMEOUT; 2609 goto error_param; 2610 } 2611 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2612 false)) { 2613 aq_ret = I40E_ERR_TIMEOUT; 2614 goto error_param; 2615 } 2616 error_param: 2617 /* send the response to the VF */ 2618 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2619 aq_ret); 2620 } 2621 2622 /** 2623 * i40e_check_enough_queue - find big enough queue number 2624 * @vf: pointer to the VF info 2625 * @needed: the number of items needed 2626 * 2627 * Returns the base item index of the queue, or negative for error 2628 **/ 2629 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed) 2630 { 2631 unsigned int i, cur_queues, more, pool_size; 2632 struct i40e_lump_tracking *pile; 2633 struct i40e_pf *pf = vf->pf; 2634 struct i40e_vsi *vsi; 2635 2636 vsi = pf->vsi[vf->lan_vsi_idx]; 2637 cur_queues = vsi->alloc_queue_pairs; 2638 2639 /* if current allocated queues are enough for need */ 2640 if (cur_queues >= needed) 2641 return vsi->base_queue; 2642 2643 pile = pf->qp_pile; 2644 if (cur_queues > 0) { 2645 /* if the allocated queues are not zero 2646 * just check if there are enough queues for more 2647 * behind the allocated queues. 2648 */ 2649 more = needed - cur_queues; 2650 for (i = vsi->base_queue + cur_queues; 2651 i < pile->num_entries; i++) { 2652 if (pile->list[i] & I40E_PILE_VALID_BIT) 2653 break; 2654 2655 if (more-- == 1) 2656 /* there is enough */ 2657 return vsi->base_queue; 2658 } 2659 } 2660 2661 pool_size = 0; 2662 for (i = 0; i < pile->num_entries; i++) { 2663 if (pile->list[i] & I40E_PILE_VALID_BIT) { 2664 pool_size = 0; 2665 continue; 2666 } 2667 if (needed <= ++pool_size) 2668 /* there is enough */ 2669 return i; 2670 } 2671 2672 return -ENOMEM; 2673 } 2674 2675 /** 2676 * i40e_vc_request_queues_msg 2677 * @vf: pointer to the VF info 2678 * @msg: pointer to the msg buffer 2679 * 2680 * VFs get a default number of queues but can use this message to request a 2681 * different number. If the request is successful, PF will reset the VF and 2682 * return 0. If unsuccessful, PF will send message informing VF of number of 2683 * available queues and return result of sending VF a message. 2684 **/ 2685 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2686 { 2687 struct virtchnl_vf_res_request *vfres = 2688 (struct virtchnl_vf_res_request *)msg; 2689 u16 req_pairs = vfres->num_queue_pairs; 2690 u8 cur_pairs = vf->num_queue_pairs; 2691 struct i40e_pf *pf = vf->pf; 2692 2693 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) 2694 return -EINVAL; 2695 2696 if (req_pairs > I40E_MAX_VF_QUEUES) { 2697 dev_err(&pf->pdev->dev, 2698 "VF %d tried to request more than %d queues.\n", 2699 vf->vf_id, 2700 I40E_MAX_VF_QUEUES); 2701 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2702 } else if (req_pairs - cur_pairs > pf->queues_left) { 2703 dev_warn(&pf->pdev->dev, 2704 "VF %d requested %d more queues, but only %d left.\n", 2705 vf->vf_id, 2706 req_pairs - cur_pairs, 2707 pf->queues_left); 2708 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2709 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) { 2710 dev_warn(&pf->pdev->dev, 2711 "VF %d requested %d more queues, but there is not enough for it.\n", 2712 vf->vf_id, 2713 req_pairs - cur_pairs); 2714 vfres->num_queue_pairs = cur_pairs; 2715 } else { 2716 /* successful request */ 2717 vf->num_req_queues = req_pairs; 2718 i40e_vc_reset_vf(vf, true); 2719 return 0; 2720 } 2721 2722 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2723 (u8 *)vfres, sizeof(*vfres)); 2724 } 2725 2726 /** 2727 * i40e_vc_get_stats_msg 2728 * @vf: pointer to the VF info 2729 * @msg: pointer to the msg buffer 2730 * 2731 * called from the VF to get vsi stats 2732 **/ 2733 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2734 { 2735 struct virtchnl_queue_select *vqs = 2736 (struct virtchnl_queue_select *)msg; 2737 struct i40e_pf *pf = vf->pf; 2738 struct i40e_eth_stats stats; 2739 i40e_status aq_ret = 0; 2740 struct i40e_vsi *vsi; 2741 2742 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2743 2744 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 2745 aq_ret = I40E_ERR_PARAM; 2746 goto error_param; 2747 } 2748 2749 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2750 aq_ret = I40E_ERR_PARAM; 2751 goto error_param; 2752 } 2753 2754 vsi = pf->vsi[vf->lan_vsi_idx]; 2755 if (!vsi) { 2756 aq_ret = I40E_ERR_PARAM; 2757 goto error_param; 2758 } 2759 i40e_update_eth_stats(vsi); 2760 stats = vsi->eth_stats; 2761 2762 error_param: 2763 /* send the response back to the VF */ 2764 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2765 (u8 *)&stats, sizeof(stats)); 2766 } 2767 2768 #define I40E_MAX_MACVLAN_PER_HW 3072 2769 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \ 2770 (num_ports)) 2771 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2772 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2773 */ 2774 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2775 #define I40E_VC_MAX_VLAN_PER_VF 16 2776 2777 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \ 2778 ({ typeof(vf_num) vf_num_ = (vf_num); \ 2779 typeof(num_ports) num_ports_ = (num_ports); \ 2780 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \ 2781 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \ 2782 I40E_VC_MAX_MAC_ADDR_PER_VF; }) 2783 /** 2784 * i40e_check_vf_permission 2785 * @vf: pointer to the VF info 2786 * @al: MAC address list from virtchnl 2787 * 2788 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2789 * if any address in the list is not valid. Checks the following conditions: 2790 * 2791 * 1) broadcast and zero addresses are never valid 2792 * 2) unicast addresses are not allowed if the VMM has administratively set 2793 * the VF MAC address, unless the VF is marked as privileged. 2794 * 3) There is enough space to add all the addresses. 2795 * 2796 * Note that to guarantee consistency, it is expected this function be called 2797 * while holding the mac_filter_hash_lock, as otherwise the current number of 2798 * addresses might not be accurate. 2799 **/ 2800 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2801 struct virtchnl_ether_addr_list *al) 2802 { 2803 struct i40e_pf *pf = vf->pf; 2804 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2805 struct i40e_hw *hw = &pf->hw; 2806 int mac2add_cnt = 0; 2807 int i; 2808 2809 for (i = 0; i < al->num_elements; i++) { 2810 struct i40e_mac_filter *f; 2811 u8 *addr = al->list[i].addr; 2812 2813 if (is_broadcast_ether_addr(addr) || 2814 is_zero_ether_addr(addr)) { 2815 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2816 addr); 2817 return I40E_ERR_INVALID_MAC_ADDR; 2818 } 2819 2820 /* If the host VMM administrator has set the VF MAC address 2821 * administratively via the ndo_set_vf_mac command then deny 2822 * permission to the VF to add or delete unicast MAC addresses. 2823 * Unless the VF is privileged and then it can do whatever. 2824 * The VF may request to set the MAC address filter already 2825 * assigned to it so do not return an error in that case. 2826 */ 2827 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2828 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2829 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2830 dev_err(&pf->pdev->dev, 2831 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2832 return -EPERM; 2833 } 2834 2835 /*count filters that really will be added*/ 2836 f = i40e_find_mac(vsi, addr); 2837 if (!f) 2838 ++mac2add_cnt; 2839 } 2840 2841 /* If this VF is not privileged, then we can't add more than a limited 2842 * number of addresses. Check to make sure that the additions do not 2843 * push us over the limit. 2844 */ 2845 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2846 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2847 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2848 dev_err(&pf->pdev->dev, 2849 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2850 return -EPERM; 2851 } 2852 /* If this VF is trusted, it can use more resources than untrusted. 2853 * However to ensure that every trusted VF has appropriate number of 2854 * resources, divide whole pool of resources per port and then across 2855 * all VFs. 2856 */ 2857 } else { 2858 if ((i40e_count_filters(vsi) + mac2add_cnt) > 2859 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs, 2860 hw->num_ports)) { 2861 dev_err(&pf->pdev->dev, 2862 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n"); 2863 return -EPERM; 2864 } 2865 } 2866 return 0; 2867 } 2868 2869 /** 2870 * i40e_vc_add_mac_addr_msg 2871 * @vf: pointer to the VF info 2872 * @msg: pointer to the msg buffer 2873 * 2874 * add guest mac address filter 2875 **/ 2876 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2877 { 2878 struct virtchnl_ether_addr_list *al = 2879 (struct virtchnl_ether_addr_list *)msg; 2880 struct i40e_pf *pf = vf->pf; 2881 struct i40e_vsi *vsi = NULL; 2882 i40e_status ret = 0; 2883 int i; 2884 2885 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2886 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2887 ret = I40E_ERR_PARAM; 2888 goto error_param; 2889 } 2890 2891 vsi = pf->vsi[vf->lan_vsi_idx]; 2892 2893 /* Lock once, because all function inside for loop accesses VSI's 2894 * MAC filter list which needs to be protected using same lock. 2895 */ 2896 spin_lock_bh(&vsi->mac_filter_hash_lock); 2897 2898 ret = i40e_check_vf_permission(vf, al); 2899 if (ret) { 2900 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2901 goto error_param; 2902 } 2903 2904 /* add new addresses to the list */ 2905 for (i = 0; i < al->num_elements; i++) { 2906 struct i40e_mac_filter *f; 2907 2908 f = i40e_find_mac(vsi, al->list[i].addr); 2909 if (!f) { 2910 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2911 2912 if (!f) { 2913 dev_err(&pf->pdev->dev, 2914 "Unable to add MAC filter %pM for VF %d\n", 2915 al->list[i].addr, vf->vf_id); 2916 ret = I40E_ERR_PARAM; 2917 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2918 goto error_param; 2919 } 2920 if (is_valid_ether_addr(al->list[i].addr) && 2921 is_zero_ether_addr(vf->default_lan_addr.addr)) 2922 ether_addr_copy(vf->default_lan_addr.addr, 2923 al->list[i].addr); 2924 } 2925 } 2926 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2927 2928 /* program the updated filter list */ 2929 ret = i40e_sync_vsi_filters(vsi); 2930 if (ret) 2931 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2932 vf->vf_id, ret); 2933 2934 error_param: 2935 /* send the response to the VF */ 2936 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2937 ret, NULL, 0); 2938 } 2939 2940 /** 2941 * i40e_vc_del_mac_addr_msg 2942 * @vf: pointer to the VF info 2943 * @msg: pointer to the msg buffer 2944 * 2945 * remove guest mac address filter 2946 **/ 2947 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2948 { 2949 struct virtchnl_ether_addr_list *al = 2950 (struct virtchnl_ether_addr_list *)msg; 2951 bool was_unimac_deleted = false; 2952 struct i40e_pf *pf = vf->pf; 2953 struct i40e_vsi *vsi = NULL; 2954 i40e_status ret = 0; 2955 int i; 2956 2957 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 2958 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2959 ret = I40E_ERR_PARAM; 2960 goto error_param; 2961 } 2962 2963 for (i = 0; i < al->num_elements; i++) { 2964 if (is_broadcast_ether_addr(al->list[i].addr) || 2965 is_zero_ether_addr(al->list[i].addr)) { 2966 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2967 al->list[i].addr, vf->vf_id); 2968 ret = I40E_ERR_INVALID_MAC_ADDR; 2969 goto error_param; 2970 } 2971 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr)) 2972 was_unimac_deleted = true; 2973 } 2974 vsi = pf->vsi[vf->lan_vsi_idx]; 2975 2976 spin_lock_bh(&vsi->mac_filter_hash_lock); 2977 /* delete addresses from the list */ 2978 for (i = 0; i < al->num_elements; i++) 2979 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2980 ret = I40E_ERR_INVALID_MAC_ADDR; 2981 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2982 goto error_param; 2983 } 2984 2985 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2986 2987 /* program the updated filter list */ 2988 ret = i40e_sync_vsi_filters(vsi); 2989 if (ret) 2990 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2991 vf->vf_id, ret); 2992 2993 if (vf->trusted && was_unimac_deleted) { 2994 struct i40e_mac_filter *f; 2995 struct hlist_node *h; 2996 u8 *macaddr = NULL; 2997 int bkt; 2998 2999 /* set last unicast mac address as default */ 3000 spin_lock_bh(&vsi->mac_filter_hash_lock); 3001 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { 3002 if (is_valid_ether_addr(f->macaddr)) 3003 macaddr = f->macaddr; 3004 } 3005 if (macaddr) 3006 ether_addr_copy(vf->default_lan_addr.addr, macaddr); 3007 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3008 } 3009 error_param: 3010 /* send the response to the VF */ 3011 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret); 3012 } 3013 3014 /** 3015 * i40e_vc_add_vlan_msg 3016 * @vf: pointer to the VF info 3017 * @msg: pointer to the msg buffer 3018 * 3019 * program guest vlan id 3020 **/ 3021 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 3022 { 3023 struct virtchnl_vlan_filter_list *vfl = 3024 (struct virtchnl_vlan_filter_list *)msg; 3025 struct i40e_pf *pf = vf->pf; 3026 struct i40e_vsi *vsi = NULL; 3027 i40e_status aq_ret = 0; 3028 int i; 3029 3030 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 3031 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3032 dev_err(&pf->pdev->dev, 3033 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 3034 goto error_param; 3035 } 3036 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3037 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3038 aq_ret = I40E_ERR_PARAM; 3039 goto error_param; 3040 } 3041 3042 for (i = 0; i < vfl->num_elements; i++) { 3043 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3044 aq_ret = I40E_ERR_PARAM; 3045 dev_err(&pf->pdev->dev, 3046 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 3047 goto error_param; 3048 } 3049 } 3050 vsi = pf->vsi[vf->lan_vsi_idx]; 3051 if (vsi->info.pvid) { 3052 aq_ret = I40E_ERR_PARAM; 3053 goto error_param; 3054 } 3055 3056 i40e_vlan_stripping_enable(vsi); 3057 for (i = 0; i < vfl->num_elements; i++) { 3058 /* add new VLAN filter */ 3059 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 3060 if (!ret) 3061 vf->num_vlan++; 3062 3063 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3064 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3065 true, 3066 vfl->vlan_id[i], 3067 NULL); 3068 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3069 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3070 true, 3071 vfl->vlan_id[i], 3072 NULL); 3073 3074 if (ret) 3075 dev_err(&pf->pdev->dev, 3076 "Unable to add VLAN filter %d for VF %d, error %d\n", 3077 vfl->vlan_id[i], vf->vf_id, ret); 3078 } 3079 3080 error_param: 3081 /* send the response to the VF */ 3082 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 3083 } 3084 3085 /** 3086 * i40e_vc_remove_vlan_msg 3087 * @vf: pointer to the VF info 3088 * @msg: pointer to the msg buffer 3089 * 3090 * remove programmed guest vlan id 3091 **/ 3092 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 3093 { 3094 struct virtchnl_vlan_filter_list *vfl = 3095 (struct virtchnl_vlan_filter_list *)msg; 3096 struct i40e_pf *pf = vf->pf; 3097 struct i40e_vsi *vsi = NULL; 3098 i40e_status aq_ret = 0; 3099 int i; 3100 3101 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3102 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 3103 aq_ret = I40E_ERR_PARAM; 3104 goto error_param; 3105 } 3106 3107 for (i = 0; i < vfl->num_elements; i++) { 3108 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 3109 aq_ret = I40E_ERR_PARAM; 3110 goto error_param; 3111 } 3112 } 3113 3114 vsi = pf->vsi[vf->lan_vsi_idx]; 3115 if (vsi->info.pvid) { 3116 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 3117 aq_ret = I40E_ERR_PARAM; 3118 goto error_param; 3119 } 3120 3121 for (i = 0; i < vfl->num_elements; i++) { 3122 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 3123 vf->num_vlan--; 3124 3125 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 3126 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 3127 false, 3128 vfl->vlan_id[i], 3129 NULL); 3130 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 3131 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 3132 false, 3133 vfl->vlan_id[i], 3134 NULL); 3135 } 3136 3137 error_param: 3138 /* send the response to the VF */ 3139 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 3140 } 3141 3142 /** 3143 * i40e_vc_iwarp_msg 3144 * @vf: pointer to the VF info 3145 * @msg: pointer to the msg buffer 3146 * @msglen: msg length 3147 * 3148 * called from the VF for the iwarp msgs 3149 **/ 3150 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 3151 { 3152 struct i40e_pf *pf = vf->pf; 3153 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 3154 i40e_status aq_ret = 0; 3155 3156 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3157 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3158 aq_ret = I40E_ERR_PARAM; 3159 goto error_param; 3160 } 3161 3162 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 3163 msg, msglen); 3164 3165 error_param: 3166 /* send the response to the VF */ 3167 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 3168 aq_ret); 3169 } 3170 3171 /** 3172 * i40e_vc_iwarp_qvmap_msg 3173 * @vf: pointer to the VF info 3174 * @msg: pointer to the msg buffer 3175 * @config: config qvmap or release it 3176 * 3177 * called from the VF for the iwarp msgs 3178 **/ 3179 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 3180 { 3181 struct virtchnl_iwarp_qvlist_info *qvlist_info = 3182 (struct virtchnl_iwarp_qvlist_info *)msg; 3183 i40e_status aq_ret = 0; 3184 3185 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3186 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 3187 aq_ret = I40E_ERR_PARAM; 3188 goto error_param; 3189 } 3190 3191 if (config) { 3192 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 3193 aq_ret = I40E_ERR_PARAM; 3194 } else { 3195 i40e_release_iwarp_qvlist(vf); 3196 } 3197 3198 error_param: 3199 /* send the response to the VF */ 3200 return i40e_vc_send_resp_to_vf(vf, 3201 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 3202 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 3203 aq_ret); 3204 } 3205 3206 /** 3207 * i40e_vc_config_rss_key 3208 * @vf: pointer to the VF info 3209 * @msg: pointer to the msg buffer 3210 * 3211 * Configure the VF's RSS key 3212 **/ 3213 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 3214 { 3215 struct virtchnl_rss_key *vrk = 3216 (struct virtchnl_rss_key *)msg; 3217 struct i40e_pf *pf = vf->pf; 3218 struct i40e_vsi *vsi = NULL; 3219 i40e_status aq_ret = 0; 3220 3221 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3222 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 3223 vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 3224 aq_ret = I40E_ERR_PARAM; 3225 goto err; 3226 } 3227 3228 vsi = pf->vsi[vf->lan_vsi_idx]; 3229 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3230 err: 3231 /* send the response to the VF */ 3232 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3233 aq_ret); 3234 } 3235 3236 /** 3237 * i40e_vc_config_rss_lut 3238 * @vf: pointer to the VF info 3239 * @msg: pointer to the msg buffer 3240 * 3241 * Configure the VF's RSS LUT 3242 **/ 3243 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3244 { 3245 struct virtchnl_rss_lut *vrl = 3246 (struct virtchnl_rss_lut *)msg; 3247 struct i40e_pf *pf = vf->pf; 3248 struct i40e_vsi *vsi = NULL; 3249 i40e_status aq_ret = 0; 3250 u16 i; 3251 3252 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) || 3253 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3254 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 3255 aq_ret = I40E_ERR_PARAM; 3256 goto err; 3257 } 3258 3259 for (i = 0; i < vrl->lut_entries; i++) 3260 if (vrl->lut[i] >= vf->num_queue_pairs) { 3261 aq_ret = I40E_ERR_PARAM; 3262 goto err; 3263 } 3264 3265 vsi = pf->vsi[vf->lan_vsi_idx]; 3266 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3267 /* send the response to the VF */ 3268 err: 3269 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3270 aq_ret); 3271 } 3272 3273 /** 3274 * i40e_vc_get_rss_hena 3275 * @vf: pointer to the VF info 3276 * @msg: pointer to the msg buffer 3277 * 3278 * Return the RSS HENA bits allowed by the hardware 3279 **/ 3280 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3281 { 3282 struct virtchnl_rss_hena *vrh = NULL; 3283 struct i40e_pf *pf = vf->pf; 3284 i40e_status aq_ret = 0; 3285 int len = 0; 3286 3287 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3288 aq_ret = I40E_ERR_PARAM; 3289 goto err; 3290 } 3291 len = sizeof(struct virtchnl_rss_hena); 3292 3293 vrh = kzalloc(len, GFP_KERNEL); 3294 if (!vrh) { 3295 aq_ret = I40E_ERR_NO_MEMORY; 3296 len = 0; 3297 goto err; 3298 } 3299 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3300 err: 3301 /* send the response back to the VF */ 3302 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3303 aq_ret, (u8 *)vrh, len); 3304 kfree(vrh); 3305 return aq_ret; 3306 } 3307 3308 /** 3309 * i40e_vc_set_rss_hena 3310 * @vf: pointer to the VF info 3311 * @msg: pointer to the msg buffer 3312 * 3313 * Set the RSS HENA bits for the VF 3314 **/ 3315 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3316 { 3317 struct virtchnl_rss_hena *vrh = 3318 (struct virtchnl_rss_hena *)msg; 3319 struct i40e_pf *pf = vf->pf; 3320 struct i40e_hw *hw = &pf->hw; 3321 i40e_status aq_ret = 0; 3322 3323 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3324 aq_ret = I40E_ERR_PARAM; 3325 goto err; 3326 } 3327 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3328 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3329 (u32)(vrh->hena >> 32)); 3330 3331 /* send the response to the VF */ 3332 err: 3333 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3334 } 3335 3336 /** 3337 * i40e_vc_enable_vlan_stripping 3338 * @vf: pointer to the VF info 3339 * @msg: pointer to the msg buffer 3340 * 3341 * Enable vlan header stripping for the VF 3342 **/ 3343 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3344 { 3345 i40e_status aq_ret = 0; 3346 struct i40e_vsi *vsi; 3347 3348 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3349 aq_ret = I40E_ERR_PARAM; 3350 goto err; 3351 } 3352 3353 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3354 i40e_vlan_stripping_enable(vsi); 3355 3356 /* send the response to the VF */ 3357 err: 3358 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3359 aq_ret); 3360 } 3361 3362 /** 3363 * i40e_vc_disable_vlan_stripping 3364 * @vf: pointer to the VF info 3365 * @msg: pointer to the msg buffer 3366 * 3367 * Disable vlan header stripping for the VF 3368 **/ 3369 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3370 { 3371 i40e_status aq_ret = 0; 3372 struct i40e_vsi *vsi; 3373 3374 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3375 aq_ret = I40E_ERR_PARAM; 3376 goto err; 3377 } 3378 3379 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3380 i40e_vlan_stripping_disable(vsi); 3381 3382 /* send the response to the VF */ 3383 err: 3384 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3385 aq_ret); 3386 } 3387 3388 /** 3389 * i40e_validate_cloud_filter 3390 * @vf: pointer to VF structure 3391 * @tc_filter: pointer to filter requested 3392 * 3393 * This function validates cloud filter programmed as TC filter for ADq 3394 **/ 3395 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3396 struct virtchnl_filter *tc_filter) 3397 { 3398 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3399 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3400 struct i40e_pf *pf = vf->pf; 3401 struct i40e_vsi *vsi = NULL; 3402 struct i40e_mac_filter *f; 3403 struct hlist_node *h; 3404 bool found = false; 3405 int bkt; 3406 3407 if (!tc_filter->action) { 3408 dev_info(&pf->pdev->dev, 3409 "VF %d: Currently ADq doesn't support Drop Action\n", 3410 vf->vf_id); 3411 goto err; 3412 } 3413 3414 /* action_meta is TC number here to which the filter is applied */ 3415 if (!tc_filter->action_meta || 3416 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3417 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3418 vf->vf_id, tc_filter->action_meta); 3419 goto err; 3420 } 3421 3422 /* Check filter if it's programmed for advanced mode or basic mode. 3423 * There are two ADq modes (for VF only), 3424 * 1. Basic mode: intended to allow as many filter options as possible 3425 * to be added to a VF in Non-trusted mode. Main goal is 3426 * to add filters to its own MAC and VLAN id. 3427 * 2. Advanced mode: is for allowing filters to be applied other than 3428 * its own MAC or VLAN. This mode requires the VF to be 3429 * Trusted. 3430 */ 3431 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3432 vsi = pf->vsi[vf->lan_vsi_idx]; 3433 f = i40e_find_mac(vsi, data.dst_mac); 3434 3435 if (!f) { 3436 dev_info(&pf->pdev->dev, 3437 "Destination MAC %pM doesn't belong to VF %d\n", 3438 data.dst_mac, vf->vf_id); 3439 goto err; 3440 } 3441 3442 if (mask.vlan_id) { 3443 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3444 hlist) { 3445 if (f->vlan == ntohs(data.vlan_id)) { 3446 found = true; 3447 break; 3448 } 3449 } 3450 if (!found) { 3451 dev_info(&pf->pdev->dev, 3452 "VF %d doesn't have any VLAN id %u\n", 3453 vf->vf_id, ntohs(data.vlan_id)); 3454 goto err; 3455 } 3456 } 3457 } else { 3458 /* Check if VF is trusted */ 3459 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3460 dev_err(&pf->pdev->dev, 3461 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3462 vf->vf_id); 3463 return I40E_ERR_CONFIG; 3464 } 3465 } 3466 3467 if (mask.dst_mac[0] & data.dst_mac[0]) { 3468 if (is_broadcast_ether_addr(data.dst_mac) || 3469 is_zero_ether_addr(data.dst_mac)) { 3470 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3471 vf->vf_id, data.dst_mac); 3472 goto err; 3473 } 3474 } 3475 3476 if (mask.src_mac[0] & data.src_mac[0]) { 3477 if (is_broadcast_ether_addr(data.src_mac) || 3478 is_zero_ether_addr(data.src_mac)) { 3479 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3480 vf->vf_id, data.src_mac); 3481 goto err; 3482 } 3483 } 3484 3485 if (mask.dst_port & data.dst_port) { 3486 if (!data.dst_port) { 3487 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3488 vf->vf_id); 3489 goto err; 3490 } 3491 } 3492 3493 if (mask.src_port & data.src_port) { 3494 if (!data.src_port) { 3495 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3496 vf->vf_id); 3497 goto err; 3498 } 3499 } 3500 3501 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3502 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3503 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3504 vf->vf_id); 3505 goto err; 3506 } 3507 3508 if (mask.vlan_id & data.vlan_id) { 3509 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3510 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3511 vf->vf_id); 3512 goto err; 3513 } 3514 } 3515 3516 return I40E_SUCCESS; 3517 err: 3518 return I40E_ERR_CONFIG; 3519 } 3520 3521 /** 3522 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3523 * @vf: pointer to the VF info 3524 * @seid: seid of the vsi it is searching for 3525 **/ 3526 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3527 { 3528 struct i40e_pf *pf = vf->pf; 3529 struct i40e_vsi *vsi = NULL; 3530 int i; 3531 3532 for (i = 0; i < vf->num_tc ; i++) { 3533 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3534 if (vsi && vsi->seid == seid) 3535 return vsi; 3536 } 3537 return NULL; 3538 } 3539 3540 /** 3541 * i40e_del_all_cloud_filters 3542 * @vf: pointer to the VF info 3543 * 3544 * This function deletes all cloud filters 3545 **/ 3546 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3547 { 3548 struct i40e_cloud_filter *cfilter = NULL; 3549 struct i40e_pf *pf = vf->pf; 3550 struct i40e_vsi *vsi = NULL; 3551 struct hlist_node *node; 3552 int ret; 3553 3554 hlist_for_each_entry_safe(cfilter, node, 3555 &vf->cloud_filter_list, cloud_node) { 3556 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3557 3558 if (!vsi) { 3559 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3560 vf->vf_id, cfilter->seid); 3561 continue; 3562 } 3563 3564 if (cfilter->dst_port) 3565 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3566 false); 3567 else 3568 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3569 if (ret) 3570 dev_err(&pf->pdev->dev, 3571 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3572 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3573 i40e_aq_str(&pf->hw, 3574 pf->hw.aq.asq_last_status)); 3575 3576 hlist_del(&cfilter->cloud_node); 3577 kfree(cfilter); 3578 vf->num_cloud_filters--; 3579 } 3580 } 3581 3582 /** 3583 * i40e_vc_del_cloud_filter 3584 * @vf: pointer to the VF info 3585 * @msg: pointer to the msg buffer 3586 * 3587 * This function deletes a cloud filter programmed as TC filter for ADq 3588 **/ 3589 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3590 { 3591 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3592 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3593 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3594 struct i40e_cloud_filter cfilter, *cf = NULL; 3595 struct i40e_pf *pf = vf->pf; 3596 struct i40e_vsi *vsi = NULL; 3597 struct hlist_node *node; 3598 i40e_status aq_ret = 0; 3599 int i, ret; 3600 3601 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3602 aq_ret = I40E_ERR_PARAM; 3603 goto err; 3604 } 3605 3606 if (!vf->adq_enabled) { 3607 dev_info(&pf->pdev->dev, 3608 "VF %d: ADq not enabled, can't apply cloud filter\n", 3609 vf->vf_id); 3610 aq_ret = I40E_ERR_PARAM; 3611 goto err; 3612 } 3613 3614 if (i40e_validate_cloud_filter(vf, vcf)) { 3615 dev_info(&pf->pdev->dev, 3616 "VF %d: Invalid input, can't apply cloud filter\n", 3617 vf->vf_id); 3618 aq_ret = I40E_ERR_PARAM; 3619 goto err; 3620 } 3621 3622 memset(&cfilter, 0, sizeof(cfilter)); 3623 /* parse destination mac address */ 3624 for (i = 0; i < ETH_ALEN; i++) 3625 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3626 3627 /* parse source mac address */ 3628 for (i = 0; i < ETH_ALEN; i++) 3629 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3630 3631 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3632 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3633 cfilter.src_port = mask.src_port & tcf.src_port; 3634 3635 switch (vcf->flow_type) { 3636 case VIRTCHNL_TCP_V4_FLOW: 3637 cfilter.n_proto = ETH_P_IP; 3638 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3639 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3640 ARRAY_SIZE(tcf.dst_ip)); 3641 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3642 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3643 ARRAY_SIZE(tcf.dst_ip)); 3644 break; 3645 case VIRTCHNL_TCP_V6_FLOW: 3646 cfilter.n_proto = ETH_P_IPV6; 3647 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3648 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3649 sizeof(cfilter.ip.v6.dst_ip6)); 3650 if (mask.src_ip[3] & tcf.src_ip[3]) 3651 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3652 sizeof(cfilter.ip.v6.src_ip6)); 3653 break; 3654 default: 3655 /* TC filter can be configured based on different combinations 3656 * and in this case IP is not a part of filter config 3657 */ 3658 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3659 vf->vf_id); 3660 } 3661 3662 /* get the vsi to which the tc belongs to */ 3663 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3664 cfilter.seid = vsi->seid; 3665 cfilter.flags = vcf->field_flags; 3666 3667 /* Deleting TC filter */ 3668 if (tcf.dst_port) 3669 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3670 else 3671 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3672 if (ret) { 3673 dev_err(&pf->pdev->dev, 3674 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3675 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3676 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3677 goto err; 3678 } 3679 3680 hlist_for_each_entry_safe(cf, node, 3681 &vf->cloud_filter_list, cloud_node) { 3682 if (cf->seid != cfilter.seid) 3683 continue; 3684 if (mask.dst_port) 3685 if (cfilter.dst_port != cf->dst_port) 3686 continue; 3687 if (mask.dst_mac[0]) 3688 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3689 continue; 3690 /* for ipv4 data to be valid, only first byte of mask is set */ 3691 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3692 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3693 ARRAY_SIZE(tcf.dst_ip))) 3694 continue; 3695 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3696 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3697 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3698 sizeof(cfilter.ip.v6.src_ip6))) 3699 continue; 3700 if (mask.vlan_id) 3701 if (cfilter.vlan_id != cf->vlan_id) 3702 continue; 3703 3704 hlist_del(&cf->cloud_node); 3705 kfree(cf); 3706 vf->num_cloud_filters--; 3707 } 3708 3709 err: 3710 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3711 aq_ret); 3712 } 3713 3714 /** 3715 * i40e_vc_add_cloud_filter 3716 * @vf: pointer to the VF info 3717 * @msg: pointer to the msg buffer 3718 * 3719 * This function adds a cloud filter programmed as TC filter for ADq 3720 **/ 3721 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3722 { 3723 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3724 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3725 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3726 struct i40e_cloud_filter *cfilter = NULL; 3727 struct i40e_pf *pf = vf->pf; 3728 struct i40e_vsi *vsi = NULL; 3729 i40e_status aq_ret = 0; 3730 int i, ret; 3731 3732 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3733 aq_ret = I40E_ERR_PARAM; 3734 goto err_out; 3735 } 3736 3737 if (!vf->adq_enabled) { 3738 dev_info(&pf->pdev->dev, 3739 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3740 vf->vf_id); 3741 aq_ret = I40E_ERR_PARAM; 3742 goto err_out; 3743 } 3744 3745 if (i40e_validate_cloud_filter(vf, vcf)) { 3746 dev_info(&pf->pdev->dev, 3747 "VF %d: Invalid input/s, can't apply cloud filter\n", 3748 vf->vf_id); 3749 aq_ret = I40E_ERR_PARAM; 3750 goto err_out; 3751 } 3752 3753 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3754 if (!cfilter) 3755 return -ENOMEM; 3756 3757 /* parse destination mac address */ 3758 for (i = 0; i < ETH_ALEN; i++) 3759 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3760 3761 /* parse source mac address */ 3762 for (i = 0; i < ETH_ALEN; i++) 3763 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3764 3765 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3766 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3767 cfilter->src_port = mask.src_port & tcf.src_port; 3768 3769 switch (vcf->flow_type) { 3770 case VIRTCHNL_TCP_V4_FLOW: 3771 cfilter->n_proto = ETH_P_IP; 3772 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3773 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3774 ARRAY_SIZE(tcf.dst_ip)); 3775 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3776 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3777 ARRAY_SIZE(tcf.dst_ip)); 3778 break; 3779 case VIRTCHNL_TCP_V6_FLOW: 3780 cfilter->n_proto = ETH_P_IPV6; 3781 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3782 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3783 sizeof(cfilter->ip.v6.dst_ip6)); 3784 if (mask.src_ip[3] & tcf.src_ip[3]) 3785 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3786 sizeof(cfilter->ip.v6.src_ip6)); 3787 break; 3788 default: 3789 /* TC filter can be configured based on different combinations 3790 * and in this case IP is not a part of filter config 3791 */ 3792 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3793 vf->vf_id); 3794 } 3795 3796 /* get the VSI to which the TC belongs to */ 3797 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3798 cfilter->seid = vsi->seid; 3799 cfilter->flags = vcf->field_flags; 3800 3801 /* Adding cloud filter programmed as TC filter */ 3802 if (tcf.dst_port) 3803 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3804 else 3805 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3806 if (ret) { 3807 dev_err(&pf->pdev->dev, 3808 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3809 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3810 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3811 goto err_free; 3812 } 3813 3814 INIT_HLIST_NODE(&cfilter->cloud_node); 3815 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3816 /* release the pointer passing it to the collection */ 3817 cfilter = NULL; 3818 vf->num_cloud_filters++; 3819 err_free: 3820 kfree(cfilter); 3821 err_out: 3822 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3823 aq_ret); 3824 } 3825 3826 /** 3827 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3828 * @vf: pointer to the VF info 3829 * @msg: pointer to the msg buffer 3830 **/ 3831 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3832 { 3833 struct virtchnl_tc_info *tci = 3834 (struct virtchnl_tc_info *)msg; 3835 struct i40e_pf *pf = vf->pf; 3836 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3837 int i, adq_request_qps = 0; 3838 i40e_status aq_ret = 0; 3839 u64 speed = 0; 3840 3841 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3842 aq_ret = I40E_ERR_PARAM; 3843 goto err; 3844 } 3845 3846 /* ADq cannot be applied if spoof check is ON */ 3847 if (vf->spoofchk) { 3848 dev_err(&pf->pdev->dev, 3849 "Spoof check is ON, turn it OFF to enable ADq\n"); 3850 aq_ret = I40E_ERR_PARAM; 3851 goto err; 3852 } 3853 3854 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3855 dev_err(&pf->pdev->dev, 3856 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3857 vf->vf_id); 3858 aq_ret = I40E_ERR_PARAM; 3859 goto err; 3860 } 3861 3862 /* max number of traffic classes for VF currently capped at 4 */ 3863 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3864 dev_err(&pf->pdev->dev, 3865 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3866 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3867 aq_ret = I40E_ERR_PARAM; 3868 goto err; 3869 } 3870 3871 /* validate queues for each TC */ 3872 for (i = 0; i < tci->num_tc; i++) 3873 if (!tci->list[i].count || 3874 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3875 dev_err(&pf->pdev->dev, 3876 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3877 vf->vf_id, i, tci->list[i].count, 3878 I40E_DEFAULT_QUEUES_PER_VF); 3879 aq_ret = I40E_ERR_PARAM; 3880 goto err; 3881 } 3882 3883 /* need Max VF queues but already have default number of queues */ 3884 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3885 3886 if (pf->queues_left < adq_request_qps) { 3887 dev_err(&pf->pdev->dev, 3888 "No queues left to allocate to VF %d\n", 3889 vf->vf_id); 3890 aq_ret = I40E_ERR_PARAM; 3891 goto err; 3892 } else { 3893 /* we need to allocate max VF queues to enable ADq so as to 3894 * make sure ADq enabled VF always gets back queues when it 3895 * goes through a reset. 3896 */ 3897 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3898 } 3899 3900 /* get link speed in MB to validate rate limit */ 3901 speed = i40e_vc_link_speed2mbps(ls->link_speed); 3902 if (speed == SPEED_UNKNOWN) { 3903 dev_err(&pf->pdev->dev, 3904 "Cannot detect link speed\n"); 3905 aq_ret = I40E_ERR_PARAM; 3906 goto err; 3907 } 3908 3909 /* parse data from the queue channel info */ 3910 vf->num_tc = tci->num_tc; 3911 for (i = 0; i < vf->num_tc; i++) { 3912 if (tci->list[i].max_tx_rate) { 3913 if (tci->list[i].max_tx_rate > speed) { 3914 dev_err(&pf->pdev->dev, 3915 "Invalid max tx rate %llu specified for VF %d.", 3916 tci->list[i].max_tx_rate, 3917 vf->vf_id); 3918 aq_ret = I40E_ERR_PARAM; 3919 goto err; 3920 } else { 3921 vf->ch[i].max_tx_rate = 3922 tci->list[i].max_tx_rate; 3923 } 3924 } 3925 vf->ch[i].num_qps = tci->list[i].count; 3926 } 3927 3928 /* set this flag only after making sure all inputs are sane */ 3929 vf->adq_enabled = true; 3930 3931 /* reset the VF in order to allocate resources */ 3932 i40e_vc_reset_vf(vf, true); 3933 3934 return I40E_SUCCESS; 3935 3936 /* send the response to the VF */ 3937 err: 3938 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3939 aq_ret); 3940 } 3941 3942 /** 3943 * i40e_vc_del_qch_msg 3944 * @vf: pointer to the VF info 3945 * @msg: pointer to the msg buffer 3946 **/ 3947 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3948 { 3949 struct i40e_pf *pf = vf->pf; 3950 i40e_status aq_ret = 0; 3951 3952 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) { 3953 aq_ret = I40E_ERR_PARAM; 3954 goto err; 3955 } 3956 3957 if (vf->adq_enabled) { 3958 i40e_del_all_cloud_filters(vf); 3959 i40e_del_qch(vf); 3960 vf->adq_enabled = false; 3961 vf->num_tc = 0; 3962 dev_info(&pf->pdev->dev, 3963 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 3964 vf->vf_id); 3965 } else { 3966 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 3967 vf->vf_id); 3968 aq_ret = I40E_ERR_PARAM; 3969 } 3970 3971 /* reset the VF in order to allocate resources */ 3972 i40e_vc_reset_vf(vf, true); 3973 3974 return I40E_SUCCESS; 3975 3976 err: 3977 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 3978 aq_ret); 3979 } 3980 3981 /** 3982 * i40e_vc_process_vf_msg 3983 * @pf: pointer to the PF structure 3984 * @vf_id: source VF id 3985 * @v_opcode: operation code 3986 * @v_retval: unused return value code 3987 * @msg: pointer to the msg buffer 3988 * @msglen: msg length 3989 * 3990 * called from the common aeq/arq handler to 3991 * process request from VF 3992 **/ 3993 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 3994 u32 __always_unused v_retval, u8 *msg, u16 msglen) 3995 { 3996 struct i40e_hw *hw = &pf->hw; 3997 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 3998 struct i40e_vf *vf; 3999 int ret; 4000 4001 pf->vf_aq_requests++; 4002 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 4003 return -EINVAL; 4004 vf = &(pf->vf[local_vf_id]); 4005 4006 /* Check if VF is disabled. */ 4007 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 4008 return I40E_ERR_PARAM; 4009 4010 /* perform basic checks on the msg */ 4011 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 4012 4013 if (ret) { 4014 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 4015 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 4016 local_vf_id, v_opcode, msglen); 4017 switch (ret) { 4018 case VIRTCHNL_STATUS_ERR_PARAM: 4019 return -EPERM; 4020 default: 4021 return -EINVAL; 4022 } 4023 } 4024 4025 switch (v_opcode) { 4026 case VIRTCHNL_OP_VERSION: 4027 ret = i40e_vc_get_version_msg(vf, msg); 4028 break; 4029 case VIRTCHNL_OP_GET_VF_RESOURCES: 4030 ret = i40e_vc_get_vf_resources_msg(vf, msg); 4031 i40e_vc_notify_vf_link_state(vf); 4032 break; 4033 case VIRTCHNL_OP_RESET_VF: 4034 i40e_vc_reset_vf(vf, false); 4035 ret = 0; 4036 break; 4037 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 4038 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 4039 break; 4040 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 4041 ret = i40e_vc_config_queues_msg(vf, msg); 4042 break; 4043 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 4044 ret = i40e_vc_config_irq_map_msg(vf, msg); 4045 break; 4046 case VIRTCHNL_OP_ENABLE_QUEUES: 4047 ret = i40e_vc_enable_queues_msg(vf, msg); 4048 i40e_vc_notify_vf_link_state(vf); 4049 break; 4050 case VIRTCHNL_OP_DISABLE_QUEUES: 4051 ret = i40e_vc_disable_queues_msg(vf, msg); 4052 break; 4053 case VIRTCHNL_OP_ADD_ETH_ADDR: 4054 ret = i40e_vc_add_mac_addr_msg(vf, msg); 4055 break; 4056 case VIRTCHNL_OP_DEL_ETH_ADDR: 4057 ret = i40e_vc_del_mac_addr_msg(vf, msg); 4058 break; 4059 case VIRTCHNL_OP_ADD_VLAN: 4060 ret = i40e_vc_add_vlan_msg(vf, msg); 4061 break; 4062 case VIRTCHNL_OP_DEL_VLAN: 4063 ret = i40e_vc_remove_vlan_msg(vf, msg); 4064 break; 4065 case VIRTCHNL_OP_GET_STATS: 4066 ret = i40e_vc_get_stats_msg(vf, msg); 4067 break; 4068 case VIRTCHNL_OP_IWARP: 4069 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 4070 break; 4071 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 4072 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 4073 break; 4074 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 4075 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 4076 break; 4077 case VIRTCHNL_OP_CONFIG_RSS_KEY: 4078 ret = i40e_vc_config_rss_key(vf, msg); 4079 break; 4080 case VIRTCHNL_OP_CONFIG_RSS_LUT: 4081 ret = i40e_vc_config_rss_lut(vf, msg); 4082 break; 4083 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 4084 ret = i40e_vc_get_rss_hena(vf, msg); 4085 break; 4086 case VIRTCHNL_OP_SET_RSS_HENA: 4087 ret = i40e_vc_set_rss_hena(vf, msg); 4088 break; 4089 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 4090 ret = i40e_vc_enable_vlan_stripping(vf, msg); 4091 break; 4092 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 4093 ret = i40e_vc_disable_vlan_stripping(vf, msg); 4094 break; 4095 case VIRTCHNL_OP_REQUEST_QUEUES: 4096 ret = i40e_vc_request_queues_msg(vf, msg); 4097 break; 4098 case VIRTCHNL_OP_ENABLE_CHANNELS: 4099 ret = i40e_vc_add_qch_msg(vf, msg); 4100 break; 4101 case VIRTCHNL_OP_DISABLE_CHANNELS: 4102 ret = i40e_vc_del_qch_msg(vf, msg); 4103 break; 4104 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 4105 ret = i40e_vc_add_cloud_filter(vf, msg); 4106 break; 4107 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 4108 ret = i40e_vc_del_cloud_filter(vf, msg); 4109 break; 4110 case VIRTCHNL_OP_UNKNOWN: 4111 default: 4112 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 4113 v_opcode, local_vf_id); 4114 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 4115 I40E_ERR_NOT_IMPLEMENTED); 4116 break; 4117 } 4118 4119 return ret; 4120 } 4121 4122 /** 4123 * i40e_vc_process_vflr_event 4124 * @pf: pointer to the PF structure 4125 * 4126 * called from the vlfr irq handler to 4127 * free up VF resources and state variables 4128 **/ 4129 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 4130 { 4131 struct i40e_hw *hw = &pf->hw; 4132 u32 reg, reg_idx, bit_idx; 4133 struct i40e_vf *vf; 4134 int vf_id; 4135 4136 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 4137 return 0; 4138 4139 /* Re-enable the VFLR interrupt cause here, before looking for which 4140 * VF got reset. Otherwise, if another VF gets a reset while the 4141 * first one is being processed, that interrupt will be lost, and 4142 * that VF will be stuck in reset forever. 4143 */ 4144 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 4145 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 4146 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 4147 i40e_flush(hw); 4148 4149 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 4150 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 4151 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 4152 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 4153 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 4154 vf = &pf->vf[vf_id]; 4155 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 4156 if (reg & BIT(bit_idx)) 4157 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 4158 i40e_reset_vf(vf, true); 4159 } 4160 4161 return 0; 4162 } 4163 4164 /** 4165 * i40e_validate_vf 4166 * @pf: the physical function 4167 * @vf_id: VF identifier 4168 * 4169 * Check that the VF is enabled and the VSI exists. 4170 * 4171 * Returns 0 on success, negative on failure 4172 **/ 4173 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 4174 { 4175 struct i40e_vsi *vsi; 4176 struct i40e_vf *vf; 4177 int ret = 0; 4178 4179 if (vf_id >= pf->num_alloc_vfs) { 4180 dev_err(&pf->pdev->dev, 4181 "Invalid VF Identifier %d\n", vf_id); 4182 ret = -EINVAL; 4183 goto err_out; 4184 } 4185 vf = &pf->vf[vf_id]; 4186 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 4187 if (!vsi) 4188 ret = -EINVAL; 4189 err_out: 4190 return ret; 4191 } 4192 4193 /** 4194 * i40e_ndo_set_vf_mac 4195 * @netdev: network interface device structure 4196 * @vf_id: VF identifier 4197 * @mac: mac address 4198 * 4199 * program VF mac address 4200 **/ 4201 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4202 { 4203 struct i40e_netdev_priv *np = netdev_priv(netdev); 4204 struct i40e_vsi *vsi = np->vsi; 4205 struct i40e_pf *pf = vsi->back; 4206 struct i40e_mac_filter *f; 4207 struct i40e_vf *vf; 4208 int ret = 0; 4209 struct hlist_node *h; 4210 int bkt; 4211 u8 i; 4212 4213 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4214 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4215 return -EAGAIN; 4216 } 4217 4218 /* validate the request */ 4219 ret = i40e_validate_vf(pf, vf_id); 4220 if (ret) 4221 goto error_param; 4222 4223 vf = &pf->vf[vf_id]; 4224 4225 /* When the VF is resetting wait until it is done. 4226 * It can take up to 200 milliseconds, 4227 * but wait for up to 300 milliseconds to be safe. 4228 * Acquire the VSI pointer only after the VF has been 4229 * properly initialized. 4230 */ 4231 for (i = 0; i < 15; i++) { 4232 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) 4233 break; 4234 msleep(20); 4235 } 4236 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4237 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4238 vf_id); 4239 ret = -EAGAIN; 4240 goto error_param; 4241 } 4242 vsi = pf->vsi[vf->lan_vsi_idx]; 4243 4244 if (is_multicast_ether_addr(mac)) { 4245 dev_err(&pf->pdev->dev, 4246 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4247 ret = -EINVAL; 4248 goto error_param; 4249 } 4250 4251 /* Lock once because below invoked function add/del_filter requires 4252 * mac_filter_hash_lock to be held 4253 */ 4254 spin_lock_bh(&vsi->mac_filter_hash_lock); 4255 4256 /* delete the temporary mac address */ 4257 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4258 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4259 4260 /* Delete all the filters for this VSI - we're going to kill it 4261 * anyway. 4262 */ 4263 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4264 __i40e_del_filter(vsi, f); 4265 4266 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4267 4268 /* program mac filter */ 4269 if (i40e_sync_vsi_filters(vsi)) { 4270 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4271 ret = -EIO; 4272 goto error_param; 4273 } 4274 ether_addr_copy(vf->default_lan_addr.addr, mac); 4275 4276 if (is_zero_ether_addr(mac)) { 4277 vf->pf_set_mac = false; 4278 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4279 } else { 4280 vf->pf_set_mac = true; 4281 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4282 mac, vf_id); 4283 } 4284 4285 /* Force the VF interface down so it has to bring up with new MAC 4286 * address 4287 */ 4288 i40e_vc_reset_vf(vf, true); 4289 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4290 4291 error_param: 4292 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4293 return ret; 4294 } 4295 4296 /** 4297 * i40e_ndo_set_vf_port_vlan 4298 * @netdev: network interface device structure 4299 * @vf_id: VF identifier 4300 * @vlan_id: mac address 4301 * @qos: priority setting 4302 * @vlan_proto: vlan protocol 4303 * 4304 * program VF vlan id and/or qos 4305 **/ 4306 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4307 u16 vlan_id, u8 qos, __be16 vlan_proto) 4308 { 4309 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4310 struct i40e_netdev_priv *np = netdev_priv(netdev); 4311 bool allmulti = false, alluni = false; 4312 struct i40e_pf *pf = np->vsi->back; 4313 struct i40e_vsi *vsi; 4314 struct i40e_vf *vf; 4315 int ret = 0; 4316 4317 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4318 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4319 return -EAGAIN; 4320 } 4321 4322 /* validate the request */ 4323 ret = i40e_validate_vf(pf, vf_id); 4324 if (ret) 4325 goto error_pvid; 4326 4327 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4328 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4329 ret = -EINVAL; 4330 goto error_pvid; 4331 } 4332 4333 if (vlan_proto != htons(ETH_P_8021Q)) { 4334 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4335 ret = -EPROTONOSUPPORT; 4336 goto error_pvid; 4337 } 4338 4339 vf = &pf->vf[vf_id]; 4340 vsi = pf->vsi[vf->lan_vsi_idx]; 4341 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4342 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4343 vf_id); 4344 ret = -EAGAIN; 4345 goto error_pvid; 4346 } 4347 4348 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4349 /* duplicate request, so just return success */ 4350 goto error_pvid; 4351 4352 i40e_vc_reset_vf(vf, true); 4353 /* During reset the VF got a new VSI, so refresh a pointer. */ 4354 vsi = pf->vsi[vf->lan_vsi_idx]; 4355 /* Locked once because multiple functions below iterate list */ 4356 spin_lock_bh(&vsi->mac_filter_hash_lock); 4357 4358 /* Check for condition where there was already a port VLAN ID 4359 * filter set and now it is being deleted by setting it to zero. 4360 * Additionally check for the condition where there was a port 4361 * VLAN but now there is a new and different port VLAN being set. 4362 * Before deleting all the old VLAN filters we must add new ones 4363 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4364 * MAC addresses deleted. 4365 */ 4366 if ((!(vlan_id || qos) || 4367 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4368 vsi->info.pvid) { 4369 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4370 if (ret) { 4371 dev_info(&vsi->back->pdev->dev, 4372 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4373 vsi->back->hw.aq.asq_last_status); 4374 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4375 goto error_pvid; 4376 } 4377 } 4378 4379 if (vsi->info.pvid) { 4380 /* remove all filters on the old VLAN */ 4381 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4382 VLAN_VID_MASK)); 4383 } 4384 4385 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4386 4387 /* disable promisc modes in case they were enabled */ 4388 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4389 allmulti, alluni); 4390 if (ret) { 4391 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4392 goto error_pvid; 4393 } 4394 4395 if (vlan_id || qos) 4396 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4397 else 4398 i40e_vsi_remove_pvid(vsi); 4399 spin_lock_bh(&vsi->mac_filter_hash_lock); 4400 4401 if (vlan_id) { 4402 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4403 vlan_id, qos, vf_id); 4404 4405 /* add new VLAN filter for each MAC */ 4406 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4407 if (ret) { 4408 dev_info(&vsi->back->pdev->dev, 4409 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4410 vsi->back->hw.aq.asq_last_status); 4411 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4412 goto error_pvid; 4413 } 4414 4415 /* remove the previously added non-VLAN MAC filters */ 4416 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4417 } 4418 4419 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4420 4421 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4422 alluni = true; 4423 4424 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4425 allmulti = true; 4426 4427 /* Schedule the worker thread to take care of applying changes */ 4428 i40e_service_event_schedule(vsi->back); 4429 4430 if (ret) { 4431 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4432 goto error_pvid; 4433 } 4434 4435 /* The Port VLAN needs to be saved across resets the same as the 4436 * default LAN MAC address. 4437 */ 4438 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4439 4440 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4441 if (ret) { 4442 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4443 goto error_pvid; 4444 } 4445 4446 ret = 0; 4447 4448 error_pvid: 4449 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4450 return ret; 4451 } 4452 4453 /** 4454 * i40e_ndo_set_vf_bw 4455 * @netdev: network interface device structure 4456 * @vf_id: VF identifier 4457 * @min_tx_rate: Minimum Tx rate 4458 * @max_tx_rate: Maximum Tx rate 4459 * 4460 * configure VF Tx rate 4461 **/ 4462 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4463 int max_tx_rate) 4464 { 4465 struct i40e_netdev_priv *np = netdev_priv(netdev); 4466 struct i40e_pf *pf = np->vsi->back; 4467 struct i40e_vsi *vsi; 4468 struct i40e_vf *vf; 4469 int ret = 0; 4470 4471 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4472 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4473 return -EAGAIN; 4474 } 4475 4476 /* validate the request */ 4477 ret = i40e_validate_vf(pf, vf_id); 4478 if (ret) 4479 goto error; 4480 4481 if (min_tx_rate) { 4482 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4483 min_tx_rate, vf_id); 4484 ret = -EINVAL; 4485 goto error; 4486 } 4487 4488 vf = &pf->vf[vf_id]; 4489 vsi = pf->vsi[vf->lan_vsi_idx]; 4490 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4491 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4492 vf_id); 4493 ret = -EAGAIN; 4494 goto error; 4495 } 4496 4497 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4498 if (ret) 4499 goto error; 4500 4501 vf->tx_rate = max_tx_rate; 4502 error: 4503 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4504 return ret; 4505 } 4506 4507 /** 4508 * i40e_ndo_get_vf_config 4509 * @netdev: network interface device structure 4510 * @vf_id: VF identifier 4511 * @ivi: VF configuration structure 4512 * 4513 * return VF configuration 4514 **/ 4515 int i40e_ndo_get_vf_config(struct net_device *netdev, 4516 int vf_id, struct ifla_vf_info *ivi) 4517 { 4518 struct i40e_netdev_priv *np = netdev_priv(netdev); 4519 struct i40e_vsi *vsi = np->vsi; 4520 struct i40e_pf *pf = vsi->back; 4521 struct i40e_vf *vf; 4522 int ret = 0; 4523 4524 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4525 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4526 return -EAGAIN; 4527 } 4528 4529 /* validate the request */ 4530 ret = i40e_validate_vf(pf, vf_id); 4531 if (ret) 4532 goto error_param; 4533 4534 vf = &pf->vf[vf_id]; 4535 /* first vsi is always the LAN vsi */ 4536 vsi = pf->vsi[vf->lan_vsi_idx]; 4537 if (!vsi) { 4538 ret = -ENOENT; 4539 goto error_param; 4540 } 4541 4542 ivi->vf = vf_id; 4543 4544 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4545 4546 ivi->max_tx_rate = vf->tx_rate; 4547 ivi->min_tx_rate = 0; 4548 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4549 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4550 I40E_VLAN_PRIORITY_SHIFT; 4551 if (vf->link_forced == false) 4552 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4553 else if (vf->link_up == true) 4554 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4555 else 4556 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4557 ivi->spoofchk = vf->spoofchk; 4558 ivi->trusted = vf->trusted; 4559 ret = 0; 4560 4561 error_param: 4562 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4563 return ret; 4564 } 4565 4566 /** 4567 * i40e_ndo_set_vf_link_state 4568 * @netdev: network interface device structure 4569 * @vf_id: VF identifier 4570 * @link: required link state 4571 * 4572 * Set the link state of a specified VF, regardless of physical link state 4573 **/ 4574 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4575 { 4576 struct i40e_netdev_priv *np = netdev_priv(netdev); 4577 struct i40e_pf *pf = np->vsi->back; 4578 struct i40e_link_status *ls = &pf->hw.phy.link_info; 4579 struct virtchnl_pf_event pfe; 4580 struct i40e_hw *hw = &pf->hw; 4581 struct i40e_vf *vf; 4582 int abs_vf_id; 4583 int ret = 0; 4584 4585 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4586 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4587 return -EAGAIN; 4588 } 4589 4590 /* validate the request */ 4591 if (vf_id >= pf->num_alloc_vfs) { 4592 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4593 ret = -EINVAL; 4594 goto error_out; 4595 } 4596 4597 vf = &pf->vf[vf_id]; 4598 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4599 4600 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4601 pfe.severity = PF_EVENT_SEVERITY_INFO; 4602 4603 switch (link) { 4604 case IFLA_VF_LINK_STATE_AUTO: 4605 vf->link_forced = false; 4606 i40e_set_vf_link_state(vf, &pfe, ls); 4607 break; 4608 case IFLA_VF_LINK_STATE_ENABLE: 4609 vf->link_forced = true; 4610 vf->link_up = true; 4611 i40e_set_vf_link_state(vf, &pfe, ls); 4612 break; 4613 case IFLA_VF_LINK_STATE_DISABLE: 4614 vf->link_forced = true; 4615 vf->link_up = false; 4616 i40e_set_vf_link_state(vf, &pfe, ls); 4617 break; 4618 default: 4619 ret = -EINVAL; 4620 goto error_out; 4621 } 4622 /* Notify the VF of its new link state */ 4623 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4624 0, (u8 *)&pfe, sizeof(pfe), NULL); 4625 4626 error_out: 4627 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4628 return ret; 4629 } 4630 4631 /** 4632 * i40e_ndo_set_vf_spoofchk 4633 * @netdev: network interface device structure 4634 * @vf_id: VF identifier 4635 * @enable: flag to enable or disable feature 4636 * 4637 * Enable or disable VF spoof checking 4638 **/ 4639 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4640 { 4641 struct i40e_netdev_priv *np = netdev_priv(netdev); 4642 struct i40e_vsi *vsi = np->vsi; 4643 struct i40e_pf *pf = vsi->back; 4644 struct i40e_vsi_context ctxt; 4645 struct i40e_hw *hw = &pf->hw; 4646 struct i40e_vf *vf; 4647 int ret = 0; 4648 4649 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4650 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4651 return -EAGAIN; 4652 } 4653 4654 /* validate the request */ 4655 if (vf_id >= pf->num_alloc_vfs) { 4656 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4657 ret = -EINVAL; 4658 goto out; 4659 } 4660 4661 vf = &(pf->vf[vf_id]); 4662 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4663 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4664 vf_id); 4665 ret = -EAGAIN; 4666 goto out; 4667 } 4668 4669 if (enable == vf->spoofchk) 4670 goto out; 4671 4672 vf->spoofchk = enable; 4673 memset(&ctxt, 0, sizeof(ctxt)); 4674 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4675 ctxt.pf_num = pf->hw.pf_id; 4676 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4677 if (enable) 4678 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4679 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4680 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4681 if (ret) { 4682 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4683 ret); 4684 ret = -EIO; 4685 } 4686 out: 4687 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4688 return ret; 4689 } 4690 4691 /** 4692 * i40e_ndo_set_vf_trust 4693 * @netdev: network interface device structure of the pf 4694 * @vf_id: VF identifier 4695 * @setting: trust setting 4696 * 4697 * Enable or disable VF trust setting 4698 **/ 4699 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4700 { 4701 struct i40e_netdev_priv *np = netdev_priv(netdev); 4702 struct i40e_pf *pf = np->vsi->back; 4703 struct i40e_vf *vf; 4704 int ret = 0; 4705 4706 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4707 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4708 return -EAGAIN; 4709 } 4710 4711 /* validate the request */ 4712 if (vf_id >= pf->num_alloc_vfs) { 4713 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4714 ret = -EINVAL; 4715 goto out; 4716 } 4717 4718 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4719 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4720 ret = -EINVAL; 4721 goto out; 4722 } 4723 4724 vf = &pf->vf[vf_id]; 4725 4726 if (setting == vf->trusted) 4727 goto out; 4728 4729 vf->trusted = setting; 4730 i40e_vc_reset_vf(vf, true); 4731 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4732 vf_id, setting ? "" : "un"); 4733 4734 if (vf->adq_enabled) { 4735 if (!vf->trusted) { 4736 dev_info(&pf->pdev->dev, 4737 "VF %u no longer Trusted, deleting all cloud filters\n", 4738 vf_id); 4739 i40e_del_all_cloud_filters(vf); 4740 } 4741 } 4742 4743 out: 4744 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4745 return ret; 4746 } 4747 4748 /** 4749 * i40e_get_vf_stats - populate some stats for the VF 4750 * @netdev: the netdev of the PF 4751 * @vf_id: the host OS identifier (0-127) 4752 * @vf_stats: pointer to the OS memory to be initialized 4753 */ 4754 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4755 struct ifla_vf_stats *vf_stats) 4756 { 4757 struct i40e_netdev_priv *np = netdev_priv(netdev); 4758 struct i40e_pf *pf = np->vsi->back; 4759 struct i40e_eth_stats *stats; 4760 struct i40e_vsi *vsi; 4761 struct i40e_vf *vf; 4762 4763 /* validate the request */ 4764 if (i40e_validate_vf(pf, vf_id)) 4765 return -EINVAL; 4766 4767 vf = &pf->vf[vf_id]; 4768 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4769 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4770 return -EBUSY; 4771 } 4772 4773 vsi = pf->vsi[vf->lan_vsi_idx]; 4774 if (!vsi) 4775 return -EINVAL; 4776 4777 i40e_update_eth_stats(vsi); 4778 stats = &vsi->eth_stats; 4779 4780 memset(vf_stats, 0, sizeof(*vf_stats)); 4781 4782 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4783 stats->rx_multicast; 4784 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4785 stats->tx_multicast; 4786 vf_stats->rx_bytes = stats->rx_bytes; 4787 vf_stats->tx_bytes = stats->tx_bytes; 4788 vf_stats->broadcast = stats->rx_broadcast; 4789 vf_stats->multicast = stats->rx_multicast; 4790 vf_stats->rx_dropped = stats->rx_discards; 4791 vf_stats->tx_dropped = stats->tx_discards; 4792 4793 return 0; 4794 } 4795