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