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_notify_vf_link_state 44 * @vf: pointer to the VF structure 45 * 46 * send a link status message to a single VF 47 **/ 48 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 49 { 50 struct virtchnl_pf_event pfe; 51 struct i40e_pf *pf = vf->pf; 52 struct i40e_hw *hw = &pf->hw; 53 struct i40e_link_status *ls = &pf->hw.phy.link_info; 54 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 55 56 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 57 pfe.severity = PF_EVENT_SEVERITY_INFO; 58 59 /* Always report link is down if the VF queues aren't enabled */ 60 if (!vf->queues_enabled) { 61 pfe.event_data.link_event.link_status = false; 62 pfe.event_data.link_event.link_speed = 0; 63 } else if (vf->link_forced) { 64 pfe.event_data.link_event.link_status = vf->link_up; 65 pfe.event_data.link_event.link_speed = 66 (vf->link_up ? VIRTCHNL_LINK_SPEED_40GB : 0); 67 } else { 68 pfe.event_data.link_event.link_status = 69 ls->link_info & I40E_AQ_LINK_UP; 70 pfe.event_data.link_event.link_speed = 71 i40e_virtchnl_link_speed(ls->link_speed); 72 } 73 74 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 75 0, (u8 *)&pfe, sizeof(pfe), NULL); 76 } 77 78 /** 79 * i40e_vc_notify_link_state 80 * @pf: pointer to the PF structure 81 * 82 * send a link status message to all VFs on a given PF 83 **/ 84 void i40e_vc_notify_link_state(struct i40e_pf *pf) 85 { 86 int i; 87 88 for (i = 0; i < pf->num_alloc_vfs; i++) 89 i40e_vc_notify_vf_link_state(&pf->vf[i]); 90 } 91 92 /** 93 * i40e_vc_notify_reset 94 * @pf: pointer to the PF structure 95 * 96 * indicate a pending reset to all VFs on a given PF 97 **/ 98 void i40e_vc_notify_reset(struct i40e_pf *pf) 99 { 100 struct virtchnl_pf_event pfe; 101 102 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 103 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 104 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, 105 (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); 106 } 107 108 /** 109 * i40e_vc_notify_vf_reset 110 * @vf: pointer to the VF structure 111 * 112 * indicate a pending reset to the given VF 113 **/ 114 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 115 { 116 struct virtchnl_pf_event pfe; 117 int abs_vf_id; 118 119 /* validate the request */ 120 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 121 return; 122 123 /* verify if the VF is in either init or active before proceeding */ 124 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 125 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 126 return; 127 128 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 129 130 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; 131 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; 132 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, 133 0, (u8 *)&pfe, 134 sizeof(struct virtchnl_pf_event), NULL); 135 } 136 /***********************misc routines*****************************/ 137 138 /** 139 * i40e_vc_disable_vf 140 * @vf: pointer to the VF info 141 * 142 * Disable the VF through a SW reset. 143 **/ 144 static inline void i40e_vc_disable_vf(struct i40e_vf *vf) 145 { 146 int i; 147 148 i40e_vc_notify_vf_reset(vf); 149 150 /* We want to ensure that an actual reset occurs initiated after this 151 * function was called. However, we do not want to wait forever, so 152 * we'll give a reasonable time and print a message if we failed to 153 * ensure a reset. 154 */ 155 for (i = 0; i < 20; i++) { 156 if (i40e_reset_vf(vf, false)) 157 return; 158 usleep_range(10000, 20000); 159 } 160 161 dev_warn(&vf->pf->pdev->dev, 162 "Failed to initiate reset for VF %d after 200 milliseconds\n", 163 vf->vf_id); 164 } 165 166 /** 167 * i40e_vc_isvalid_vsi_id 168 * @vf: pointer to the VF info 169 * @vsi_id: VF relative VSI id 170 * 171 * check for the valid VSI id 172 **/ 173 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 174 { 175 struct i40e_pf *pf = vf->pf; 176 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 177 178 return (vsi && (vsi->vf_id == vf->vf_id)); 179 } 180 181 /** 182 * i40e_vc_isvalid_queue_id 183 * @vf: pointer to the VF info 184 * @vsi_id: vsi id 185 * @qid: vsi relative queue id 186 * 187 * check for the valid queue id 188 **/ 189 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 190 u16 qid) 191 { 192 struct i40e_pf *pf = vf->pf; 193 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 194 195 return (vsi && (qid < vsi->alloc_queue_pairs)); 196 } 197 198 /** 199 * i40e_vc_isvalid_vector_id 200 * @vf: pointer to the VF info 201 * @vector_id: VF relative vector id 202 * 203 * check for the valid vector id 204 **/ 205 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) 206 { 207 struct i40e_pf *pf = vf->pf; 208 209 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 210 } 211 212 /***********************vf resource mgmt routines*****************/ 213 214 /** 215 * i40e_vc_get_pf_queue_id 216 * @vf: pointer to the VF info 217 * @vsi_id: id of VSI as provided by the FW 218 * @vsi_queue_id: vsi relative queue id 219 * 220 * return PF relative queue id 221 **/ 222 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 223 u8 vsi_queue_id) 224 { 225 struct i40e_pf *pf = vf->pf; 226 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 227 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 228 229 if (!vsi) 230 return pf_queue_id; 231 232 if (le16_to_cpu(vsi->info.mapping_flags) & 233 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 234 pf_queue_id = 235 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 236 else 237 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 238 vsi_queue_id; 239 240 return pf_queue_id; 241 } 242 243 /** 244 * i40e_get_real_pf_qid 245 * @vf: pointer to the VF info 246 * @vsi_id: vsi id 247 * @queue_id: queue number 248 * 249 * wrapper function to get pf_queue_id handling ADq code as well 250 **/ 251 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) 252 { 253 int i; 254 255 if (vf->adq_enabled) { 256 /* Although VF considers all the queues(can be 1 to 16) as its 257 * own but they may actually belong to different VSIs(up to 4). 258 * We need to find which queues belongs to which VSI. 259 */ 260 for (i = 0; i < vf->num_tc; i++) { 261 if (queue_id < vf->ch[i].num_qps) { 262 vsi_id = vf->ch[i].vsi_id; 263 break; 264 } 265 /* find right queue id which is relative to a 266 * given VSI. 267 */ 268 queue_id -= vf->ch[i].num_qps; 269 } 270 } 271 272 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); 273 } 274 275 /** 276 * i40e_config_irq_link_list 277 * @vf: pointer to the VF info 278 * @vsi_id: id of VSI as given by the FW 279 * @vecmap: irq map info 280 * 281 * configure irq link list from the map 282 **/ 283 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 284 struct virtchnl_vector_map *vecmap) 285 { 286 unsigned long linklistmap = 0, tempmap; 287 struct i40e_pf *pf = vf->pf; 288 struct i40e_hw *hw = &pf->hw; 289 u16 vsi_queue_id, pf_queue_id; 290 enum i40e_queue_type qtype; 291 u16 next_q, vector_id, size; 292 u32 reg, reg_idx; 293 u16 itr_idx = 0; 294 295 vector_id = vecmap->vector_id; 296 /* setup the head */ 297 if (0 == vector_id) 298 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 299 else 300 reg_idx = I40E_VPINT_LNKLSTN( 301 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 302 (vector_id - 1)); 303 304 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 305 /* Special case - No queues mapped on this vector */ 306 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 307 goto irq_list_done; 308 } 309 tempmap = vecmap->rxq_map; 310 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 311 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 312 vsi_queue_id)); 313 } 314 315 tempmap = vecmap->txq_map; 316 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 317 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 318 vsi_queue_id + 1)); 319 } 320 321 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; 322 next_q = find_first_bit(&linklistmap, size); 323 if (unlikely(next_q == size)) 324 goto irq_list_done; 325 326 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 327 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 328 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); 329 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 330 331 wr32(hw, reg_idx, reg); 332 333 while (next_q < size) { 334 switch (qtype) { 335 case I40E_QUEUE_TYPE_RX: 336 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 337 itr_idx = vecmap->rxitr_idx; 338 break; 339 case I40E_QUEUE_TYPE_TX: 340 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 341 itr_idx = vecmap->txitr_idx; 342 break; 343 default: 344 break; 345 } 346 347 next_q = find_next_bit(&linklistmap, size, next_q + 1); 348 if (next_q < size) { 349 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 350 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 351 pf_queue_id = i40e_get_real_pf_qid(vf, 352 vsi_id, 353 vsi_queue_id); 354 } else { 355 pf_queue_id = I40E_QUEUE_END_OF_LIST; 356 qtype = 0; 357 } 358 359 /* format for the RQCTL & TQCTL regs is same */ 360 reg = (vector_id) | 361 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 362 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 363 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 364 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 365 wr32(hw, reg_idx, reg); 366 } 367 368 /* if the vf is running in polling mode and using interrupt zero, 369 * need to disable auto-mask on enabling zero interrupt for VFs. 370 */ 371 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 372 (vector_id == 0)) { 373 reg = rd32(hw, I40E_GLINT_CTL); 374 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 375 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 376 wr32(hw, I40E_GLINT_CTL, reg); 377 } 378 } 379 380 irq_list_done: 381 i40e_flush(hw); 382 } 383 384 /** 385 * i40e_release_iwarp_qvlist 386 * @vf: pointer to the VF. 387 * 388 **/ 389 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) 390 { 391 struct i40e_pf *pf = vf->pf; 392 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; 393 u32 msix_vf; 394 u32 i; 395 396 if (!vf->qvlist_info) 397 return; 398 399 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 400 for (i = 0; i < qvlist_info->num_vectors; i++) { 401 struct virtchnl_iwarp_qv_info *qv_info; 402 u32 next_q_index, next_q_type; 403 struct i40e_hw *hw = &pf->hw; 404 u32 v_idx, reg_idx, reg; 405 406 qv_info = &qvlist_info->qv_info[i]; 407 if (!qv_info) 408 continue; 409 v_idx = qv_info->v_idx; 410 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 411 /* Figure out the queue after CEQ and make that the 412 * first queue. 413 */ 414 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 415 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 416 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 417 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 418 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 419 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 420 421 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 422 reg = (next_q_index & 423 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 424 (next_q_type << 425 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 426 427 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 428 } 429 } 430 kfree(vf->qvlist_info); 431 vf->qvlist_info = NULL; 432 } 433 434 /** 435 * i40e_config_iwarp_qvlist 436 * @vf: pointer to the VF info 437 * @qvlist_info: queue and vector list 438 * 439 * Return 0 on success or < 0 on error 440 **/ 441 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, 442 struct virtchnl_iwarp_qvlist_info *qvlist_info) 443 { 444 struct i40e_pf *pf = vf->pf; 445 struct i40e_hw *hw = &pf->hw; 446 struct virtchnl_iwarp_qv_info *qv_info; 447 u32 v_idx, i, reg_idx, reg; 448 u32 next_q_idx, next_q_type; 449 u32 msix_vf; 450 int ret = 0; 451 452 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 453 454 if (qvlist_info->num_vectors > msix_vf) { 455 dev_warn(&pf->pdev->dev, 456 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", 457 qvlist_info->num_vectors, 458 msix_vf); 459 ret = -EINVAL; 460 goto err_out; 461 } 462 463 kfree(vf->qvlist_info); 464 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info, 465 qvlist_info->num_vectors - 1), 466 GFP_KERNEL); 467 if (!vf->qvlist_info) { 468 ret = -ENOMEM; 469 goto err_out; 470 } 471 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 472 473 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 474 for (i = 0; i < qvlist_info->num_vectors; i++) { 475 qv_info = &qvlist_info->qv_info[i]; 476 if (!qv_info) 477 continue; 478 479 /* Validate vector id belongs to this vf */ 480 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { 481 ret = -EINVAL; 482 goto err_free; 483 } 484 485 v_idx = qv_info->v_idx; 486 487 vf->qvlist_info->qv_info[i] = *qv_info; 488 489 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 490 /* We might be sharing the interrupt, so get the first queue 491 * index and type, push it down the list by adding the new 492 * queue on top. Also link it with the new queue in CEQCTL. 493 */ 494 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 495 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 496 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 497 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 498 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 499 500 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 502 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 503 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 504 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 505 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 506 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 507 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 508 509 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 510 reg = (qv_info->ceq_idx & 511 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 512 (I40E_QUEUE_TYPE_PE_CEQ << 513 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 515 } 516 517 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 518 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 519 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 520 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 521 522 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 523 } 524 } 525 526 return 0; 527 err_free: 528 kfree(vf->qvlist_info); 529 vf->qvlist_info = NULL; 530 err_out: 531 return ret; 532 } 533 534 /** 535 * i40e_config_vsi_tx_queue 536 * @vf: pointer to the VF info 537 * @vsi_id: id of VSI as provided by the FW 538 * @vsi_queue_id: vsi relative queue index 539 * @info: config. info 540 * 541 * configure tx queue 542 **/ 543 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 544 u16 vsi_queue_id, 545 struct virtchnl_txq_info *info) 546 { 547 struct i40e_pf *pf = vf->pf; 548 struct i40e_hw *hw = &pf->hw; 549 struct i40e_hmc_obj_txq tx_ctx; 550 struct i40e_vsi *vsi; 551 u16 pf_queue_id; 552 u32 qtx_ctl; 553 int ret = 0; 554 555 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 556 ret = -ENOENT; 557 goto error_context; 558 } 559 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 560 vsi = i40e_find_vsi_from_id(pf, vsi_id); 561 if (!vsi) { 562 ret = -ENOENT; 563 goto error_context; 564 } 565 566 /* clear the context structure first */ 567 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 568 569 /* only set the required fields */ 570 tx_ctx.base = info->dma_ring_addr / 128; 571 tx_ctx.qlen = info->ring_len; 572 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 573 tx_ctx.rdylist_act = 0; 574 tx_ctx.head_wb_ena = info->headwb_enabled; 575 tx_ctx.head_wb_addr = info->dma_headwb_addr; 576 577 /* clear the context in the HMC */ 578 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 579 if (ret) { 580 dev_err(&pf->pdev->dev, 581 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 582 pf_queue_id, ret); 583 ret = -ENOENT; 584 goto error_context; 585 } 586 587 /* set the context in the HMC */ 588 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 589 if (ret) { 590 dev_err(&pf->pdev->dev, 591 "Failed to set VF LAN Tx queue context %d error: %d\n", 592 pf_queue_id, ret); 593 ret = -ENOENT; 594 goto error_context; 595 } 596 597 /* associate this queue with the PCI VF function */ 598 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 599 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 600 & I40E_QTX_CTL_PF_INDX_MASK); 601 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 602 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 603 & I40E_QTX_CTL_VFVM_INDX_MASK); 604 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 605 i40e_flush(hw); 606 607 error_context: 608 return ret; 609 } 610 611 /** 612 * i40e_config_vsi_rx_queue 613 * @vf: pointer to the VF info 614 * @vsi_id: id of VSI as provided by the FW 615 * @vsi_queue_id: vsi relative queue index 616 * @info: config. info 617 * 618 * configure rx queue 619 **/ 620 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 621 u16 vsi_queue_id, 622 struct virtchnl_rxq_info *info) 623 { 624 struct i40e_pf *pf = vf->pf; 625 struct i40e_hw *hw = &pf->hw; 626 struct i40e_hmc_obj_rxq rx_ctx; 627 u16 pf_queue_id; 628 int ret = 0; 629 630 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 631 632 /* clear the context structure first */ 633 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 634 635 /* only set the required fields */ 636 rx_ctx.base = info->dma_ring_addr / 128; 637 rx_ctx.qlen = info->ring_len; 638 639 if (info->splithdr_enabled) { 640 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 641 I40E_RX_SPLIT_IP | 642 I40E_RX_SPLIT_TCP_UDP | 643 I40E_RX_SPLIT_SCTP; 644 /* header length validation */ 645 if (info->hdr_size > ((2 * 1024) - 64)) { 646 ret = -EINVAL; 647 goto error_param; 648 } 649 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 650 651 /* set split mode 10b */ 652 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 653 } 654 655 /* databuffer length validation */ 656 if (info->databuffer_size > ((16 * 1024) - 128)) { 657 ret = -EINVAL; 658 goto error_param; 659 } 660 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 661 662 /* max pkt. length validation */ 663 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 664 ret = -EINVAL; 665 goto error_param; 666 } 667 rx_ctx.rxmax = info->max_pkt_size; 668 669 /* enable 32bytes desc always */ 670 rx_ctx.dsize = 1; 671 672 /* default values */ 673 rx_ctx.lrxqthresh = 1; 674 rx_ctx.crcstrip = 1; 675 rx_ctx.prefena = 1; 676 rx_ctx.l2tsel = 1; 677 678 /* clear the context in the HMC */ 679 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 680 if (ret) { 681 dev_err(&pf->pdev->dev, 682 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 683 pf_queue_id, ret); 684 ret = -ENOENT; 685 goto error_param; 686 } 687 688 /* set the context in the HMC */ 689 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 690 if (ret) { 691 dev_err(&pf->pdev->dev, 692 "Failed to set VF LAN Rx queue context %d error: %d\n", 693 pf_queue_id, ret); 694 ret = -ENOENT; 695 goto error_param; 696 } 697 698 error_param: 699 return ret; 700 } 701 702 /** 703 * i40e_alloc_vsi_res 704 * @vf: pointer to the VF info 705 * @idx: VSI index, applies only for ADq mode, zero otherwise 706 * 707 * alloc VF vsi context & resources 708 **/ 709 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) 710 { 711 struct i40e_mac_filter *f = NULL; 712 struct i40e_pf *pf = vf->pf; 713 struct i40e_vsi *vsi; 714 u64 max_tx_rate = 0; 715 int ret = 0; 716 717 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, 718 vf->vf_id); 719 720 if (!vsi) { 721 dev_err(&pf->pdev->dev, 722 "add vsi failed for VF %d, aq_err %d\n", 723 vf->vf_id, pf->hw.aq.asq_last_status); 724 ret = -ENOENT; 725 goto error_alloc_vsi_res; 726 } 727 728 if (!idx) { 729 u64 hena = i40e_pf_get_default_rss_hena(pf); 730 u8 broadcast[ETH_ALEN]; 731 732 vf->lan_vsi_idx = vsi->idx; 733 vf->lan_vsi_id = vsi->id; 734 /* If the port VLAN has been configured and then the 735 * VF driver was removed then the VSI port VLAN 736 * configuration was destroyed. Check if there is 737 * a port VLAN and restore the VSI configuration if 738 * needed. 739 */ 740 if (vf->port_vlan_id) 741 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 742 743 spin_lock_bh(&vsi->mac_filter_hash_lock); 744 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 745 f = i40e_add_mac_filter(vsi, 746 vf->default_lan_addr.addr); 747 if (!f) 748 dev_info(&pf->pdev->dev, 749 "Could not add MAC filter %pM for VF %d\n", 750 vf->default_lan_addr.addr, vf->vf_id); 751 } 752 eth_broadcast_addr(broadcast); 753 f = i40e_add_mac_filter(vsi, broadcast); 754 if (!f) 755 dev_info(&pf->pdev->dev, 756 "Could not allocate VF broadcast filter\n"); 757 spin_unlock_bh(&vsi->mac_filter_hash_lock); 758 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 759 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 760 /* program mac filter only for VF VSI */ 761 ret = i40e_sync_vsi_filters(vsi); 762 if (ret) 763 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 764 } 765 766 /* storing VSI index and id for ADq and don't apply the mac filter */ 767 if (vf->adq_enabled) { 768 vf->ch[idx].vsi_idx = vsi->idx; 769 vf->ch[idx].vsi_id = vsi->id; 770 } 771 772 /* Set VF bandwidth if specified */ 773 if (vf->tx_rate) { 774 max_tx_rate = vf->tx_rate; 775 } else if (vf->ch[idx].max_tx_rate) { 776 max_tx_rate = vf->ch[idx].max_tx_rate; 777 } 778 779 if (max_tx_rate) { 780 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); 781 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 782 max_tx_rate, 0, NULL); 783 if (ret) 784 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 785 vf->vf_id, ret); 786 } 787 788 error_alloc_vsi_res: 789 return ret; 790 } 791 792 /** 793 * i40e_map_pf_queues_to_vsi 794 * @vf: pointer to the VF info 795 * 796 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 797 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. 798 **/ 799 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) 800 { 801 struct i40e_pf *pf = vf->pf; 802 struct i40e_hw *hw = &pf->hw; 803 u32 reg, num_tc = 1; /* VF has at least one traffic class */ 804 u16 vsi_id, qps; 805 int i, j; 806 807 if (vf->adq_enabled) 808 num_tc = vf->num_tc; 809 810 for (i = 0; i < num_tc; i++) { 811 if (vf->adq_enabled) { 812 qps = vf->ch[i].num_qps; 813 vsi_id = vf->ch[i].vsi_id; 814 } else { 815 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 816 vsi_id = vf->lan_vsi_id; 817 } 818 819 for (j = 0; j < 7; j++) { 820 if (j * 2 >= qps) { 821 /* end of list */ 822 reg = 0x07FF07FF; 823 } else { 824 u16 qid = i40e_vc_get_pf_queue_id(vf, 825 vsi_id, 826 j * 2); 827 reg = qid; 828 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, 829 (j * 2) + 1); 830 reg |= qid << 16; 831 } 832 i40e_write_rx_ctl(hw, 833 I40E_VSILAN_QTABLE(j, vsi_id), 834 reg); 835 } 836 } 837 } 838 839 /** 840 * i40e_map_pf_to_vf_queues 841 * @vf: pointer to the VF info 842 * 843 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This 844 * function takes care of the second part VPLAN_QTABLE & completes VF mappings. 845 **/ 846 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) 847 { 848 struct i40e_pf *pf = vf->pf; 849 struct i40e_hw *hw = &pf->hw; 850 u32 reg, total_qps = 0; 851 u32 qps, num_tc = 1; /* VF has at least one traffic class */ 852 u16 vsi_id, qid; 853 int i, j; 854 855 if (vf->adq_enabled) 856 num_tc = vf->num_tc; 857 858 for (i = 0; i < num_tc; i++) { 859 if (vf->adq_enabled) { 860 qps = vf->ch[i].num_qps; 861 vsi_id = vf->ch[i].vsi_id; 862 } else { 863 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 864 vsi_id = vf->lan_vsi_id; 865 } 866 867 for (j = 0; j < qps; j++) { 868 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); 869 870 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 871 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), 872 reg); 873 total_qps++; 874 } 875 } 876 } 877 878 /** 879 * i40e_enable_vf_mappings 880 * @vf: pointer to the VF info 881 * 882 * enable VF mappings 883 **/ 884 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 885 { 886 struct i40e_pf *pf = vf->pf; 887 struct i40e_hw *hw = &pf->hw; 888 u32 reg; 889 890 /* Tell the hardware we're using noncontiguous mapping. HW requires 891 * that VF queues be mapped using this method, even when they are 892 * contiguous in real life 893 */ 894 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 895 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 896 897 /* enable VF vplan_qtable mappings */ 898 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 899 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 900 901 i40e_map_pf_to_vf_queues(vf); 902 i40e_map_pf_queues_to_vsi(vf); 903 904 i40e_flush(hw); 905 } 906 907 /** 908 * i40e_disable_vf_mappings 909 * @vf: pointer to the VF info 910 * 911 * disable VF mappings 912 **/ 913 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 914 { 915 struct i40e_pf *pf = vf->pf; 916 struct i40e_hw *hw = &pf->hw; 917 int i; 918 919 /* disable qp mappings */ 920 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 921 for (i = 0; i < I40E_MAX_VSI_QP; i++) 922 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 923 I40E_QUEUE_END_OF_LIST); 924 i40e_flush(hw); 925 } 926 927 /** 928 * i40e_free_vf_res 929 * @vf: pointer to the VF info 930 * 931 * free VF resources 932 **/ 933 static void i40e_free_vf_res(struct i40e_vf *vf) 934 { 935 struct i40e_pf *pf = vf->pf; 936 struct i40e_hw *hw = &pf->hw; 937 u32 reg_idx, reg; 938 int i, j, msix_vf; 939 940 /* Start by disabling VF's configuration API to prevent the OS from 941 * accessing the VF's VSI after it's freed / invalidated. 942 */ 943 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 944 945 /* It's possible the VF had requeuested more queues than the default so 946 * do the accounting here when we're about to free them. 947 */ 948 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { 949 pf->queues_left += vf->num_queue_pairs - 950 I40E_DEFAULT_QUEUES_PER_VF; 951 } 952 953 /* free vsi & disconnect it from the parent uplink */ 954 if (vf->lan_vsi_idx) { 955 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 956 vf->lan_vsi_idx = 0; 957 vf->lan_vsi_id = 0; 958 } 959 960 /* do the accounting and remove additional ADq VSI's */ 961 if (vf->adq_enabled && vf->ch[0].vsi_idx) { 962 for (j = 0; j < vf->num_tc; j++) { 963 /* At this point VSI0 is already released so don't 964 * release it again and only clear their values in 965 * structure variables 966 */ 967 if (j) 968 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); 969 vf->ch[j].vsi_idx = 0; 970 vf->ch[j].vsi_id = 0; 971 } 972 } 973 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 974 975 /* disable interrupts so the VF starts in a known state */ 976 for (i = 0; i < msix_vf; i++) { 977 /* format is same for both registers */ 978 if (0 == i) 979 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 980 else 981 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 982 (vf->vf_id)) 983 + (i - 1)); 984 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 985 i40e_flush(hw); 986 } 987 988 /* clear the irq settings */ 989 for (i = 0; i < msix_vf; i++) { 990 /* format is same for both registers */ 991 if (0 == i) 992 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 993 else 994 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 995 (vf->vf_id)) 996 + (i - 1)); 997 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 998 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 999 wr32(hw, reg_idx, reg); 1000 i40e_flush(hw); 1001 } 1002 /* reset some of the state variables keeping track of the resources */ 1003 vf->num_queue_pairs = 0; 1004 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1005 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1006 } 1007 1008 /** 1009 * i40e_alloc_vf_res 1010 * @vf: pointer to the VF info 1011 * 1012 * allocate VF resources 1013 **/ 1014 static int i40e_alloc_vf_res(struct i40e_vf *vf) 1015 { 1016 struct i40e_pf *pf = vf->pf; 1017 int total_queue_pairs = 0; 1018 int ret, idx; 1019 1020 if (vf->num_req_queues && 1021 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) 1022 pf->num_vf_qps = vf->num_req_queues; 1023 else 1024 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; 1025 1026 /* allocate hw vsi context & associated resources */ 1027 ret = i40e_alloc_vsi_res(vf, 0); 1028 if (ret) 1029 goto error_alloc; 1030 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 1031 1032 /* allocate additional VSIs based on tc information for ADq */ 1033 if (vf->adq_enabled) { 1034 if (pf->queues_left >= 1035 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { 1036 /* TC 0 always belongs to VF VSI */ 1037 for (idx = 1; idx < vf->num_tc; idx++) { 1038 ret = i40e_alloc_vsi_res(vf, idx); 1039 if (ret) 1040 goto error_alloc; 1041 } 1042 /* send correct number of queues */ 1043 total_queue_pairs = I40E_MAX_VF_QUEUES; 1044 } else { 1045 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", 1046 vf->vf_id); 1047 vf->adq_enabled = false; 1048 } 1049 } 1050 1051 /* We account for each VF to get a default number of queue pairs. If 1052 * the VF has now requested more, we need to account for that to make 1053 * certain we never request more queues than we actually have left in 1054 * HW. 1055 */ 1056 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) 1057 pf->queues_left -= 1058 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; 1059 1060 if (vf->trusted) 1061 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1062 else 1063 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 1064 1065 /* store the total qps number for the runtime 1066 * VF req validation 1067 */ 1068 vf->num_queue_pairs = total_queue_pairs; 1069 1070 /* VF is now completely initialized */ 1071 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1072 1073 error_alloc: 1074 if (ret) 1075 i40e_free_vf_res(vf); 1076 1077 return ret; 1078 } 1079 1080 #define VF_DEVICE_STATUS 0xAA 1081 #define VF_TRANS_PENDING_MASK 0x20 1082 /** 1083 * i40e_quiesce_vf_pci 1084 * @vf: pointer to the VF structure 1085 * 1086 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 1087 * if the transactions never clear. 1088 **/ 1089 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 1090 { 1091 struct i40e_pf *pf = vf->pf; 1092 struct i40e_hw *hw = &pf->hw; 1093 int vf_abs_id, i; 1094 u32 reg; 1095 1096 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 1097 1098 wr32(hw, I40E_PF_PCI_CIAA, 1099 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 1100 for (i = 0; i < 100; i++) { 1101 reg = rd32(hw, I40E_PF_PCI_CIAD); 1102 if ((reg & VF_TRANS_PENDING_MASK) == 0) 1103 return 0; 1104 udelay(1); 1105 } 1106 return -EIO; 1107 } 1108 1109 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi); 1110 1111 /** 1112 * i40e_config_vf_promiscuous_mode 1113 * @vf: pointer to the VF info 1114 * @vsi_id: VSI id 1115 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1116 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1117 * 1118 * Called from the VF to configure the promiscuous mode of 1119 * VF vsis and from the VF reset path to reset promiscuous mode. 1120 **/ 1121 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1122 u16 vsi_id, 1123 bool allmulti, 1124 bool alluni) 1125 { 1126 struct i40e_pf *pf = vf->pf; 1127 struct i40e_hw *hw = &pf->hw; 1128 struct i40e_mac_filter *f; 1129 i40e_status aq_ret = 0; 1130 struct i40e_vsi *vsi; 1131 int bkt; 1132 1133 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1134 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1135 return I40E_ERR_PARAM; 1136 1137 if (vf->port_vlan_id) { 1138 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, 1139 allmulti, 1140 vf->port_vlan_id, 1141 NULL); 1142 if (aq_ret) { 1143 int aq_err = pf->hw.aq.asq_last_status; 1144 1145 dev_err(&pf->pdev->dev, 1146 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1147 vf->vf_id, 1148 i40e_stat_str(&pf->hw, aq_ret), 1149 i40e_aq_str(&pf->hw, aq_err)); 1150 return aq_ret; 1151 } 1152 1153 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, 1154 alluni, 1155 vf->port_vlan_id, 1156 NULL); 1157 if (aq_ret) { 1158 int aq_err = pf->hw.aq.asq_last_status; 1159 1160 dev_err(&pf->pdev->dev, 1161 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1162 vf->vf_id, 1163 i40e_stat_str(&pf->hw, aq_ret), 1164 i40e_aq_str(&pf->hw, aq_err)); 1165 } 1166 return aq_ret; 1167 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1168 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1169 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1170 continue; 1171 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, 1172 vsi->seid, 1173 allmulti, 1174 f->vlan, 1175 NULL); 1176 if (aq_ret) { 1177 int aq_err = pf->hw.aq.asq_last_status; 1178 1179 dev_err(&pf->pdev->dev, 1180 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n", 1181 f->vlan, 1182 i40e_stat_str(&pf->hw, aq_ret), 1183 i40e_aq_str(&pf->hw, aq_err)); 1184 } 1185 1186 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, 1187 vsi->seid, 1188 alluni, 1189 f->vlan, 1190 NULL); 1191 if (aq_ret) { 1192 int aq_err = pf->hw.aq.asq_last_status; 1193 1194 dev_err(&pf->pdev->dev, 1195 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n", 1196 f->vlan, 1197 i40e_stat_str(&pf->hw, aq_ret), 1198 i40e_aq_str(&pf->hw, aq_err)); 1199 } 1200 } 1201 return aq_ret; 1202 } 1203 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, allmulti, 1204 NULL); 1205 if (aq_ret) { 1206 int aq_err = pf->hw.aq.asq_last_status; 1207 1208 dev_err(&pf->pdev->dev, 1209 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1210 vf->vf_id, 1211 i40e_stat_str(&pf->hw, aq_ret), 1212 i40e_aq_str(&pf->hw, aq_err)); 1213 return aq_ret; 1214 } 1215 1216 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, alluni, 1217 NULL, true); 1218 if (aq_ret) { 1219 int aq_err = pf->hw.aq.asq_last_status; 1220 1221 dev_err(&pf->pdev->dev, 1222 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1223 vf->vf_id, 1224 i40e_stat_str(&pf->hw, aq_ret), 1225 i40e_aq_str(&pf->hw, aq_err)); 1226 } 1227 1228 return aq_ret; 1229 } 1230 1231 /** 1232 * i40e_trigger_vf_reset 1233 * @vf: pointer to the VF structure 1234 * @flr: VFLR was issued or not 1235 * 1236 * Trigger hardware to start a reset for a particular VF. Expects the caller 1237 * to wait the proper amount of time to allow hardware to reset the VF before 1238 * it cleans up and restores VF functionality. 1239 **/ 1240 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1241 { 1242 struct i40e_pf *pf = vf->pf; 1243 struct i40e_hw *hw = &pf->hw; 1244 u32 reg, reg_idx, bit_idx; 1245 1246 /* warn the VF */ 1247 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1248 1249 /* Disable VF's configuration API during reset. The flag is re-enabled 1250 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1251 * It's normally disabled in i40e_free_vf_res(), but it's safer 1252 * to do it earlier to give some time to finish to any VF config 1253 * functions that may still be running at this point. 1254 */ 1255 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1256 1257 /* In the case of a VFLR, the HW has already reset the VF and we 1258 * just need to clean up, so don't hit the VFRTRIG register. 1259 */ 1260 if (!flr) { 1261 /* reset VF using VPGEN_VFRTRIG reg */ 1262 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1263 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1264 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1265 i40e_flush(hw); 1266 } 1267 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1268 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1269 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1270 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1271 i40e_flush(hw); 1272 1273 if (i40e_quiesce_vf_pci(vf)) 1274 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1275 vf->vf_id); 1276 } 1277 1278 /** 1279 * i40e_cleanup_reset_vf 1280 * @vf: pointer to the VF structure 1281 * 1282 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1283 * have verified whether the reset is finished properly, and ensure the 1284 * minimum amount of wait time has passed. 1285 **/ 1286 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1287 { 1288 struct i40e_pf *pf = vf->pf; 1289 struct i40e_hw *hw = &pf->hw; 1290 u32 reg; 1291 1292 /* disable promisc modes in case they were enabled */ 1293 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1294 1295 /* free VF resources to begin resetting the VSI state */ 1296 i40e_free_vf_res(vf); 1297 1298 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1299 * By doing this we allow HW to access VF memory at any point. If we 1300 * did it any sooner, HW could access memory while it was being freed 1301 * in i40e_free_vf_res(), causing an IOMMU fault. 1302 * 1303 * On the other hand, this needs to be done ASAP, because the VF driver 1304 * is waiting for this to happen and may report a timeout. It's 1305 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1306 * it. 1307 */ 1308 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1309 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1310 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1311 1312 /* reallocate VF resources to finish resetting the VSI state */ 1313 if (!i40e_alloc_vf_res(vf)) { 1314 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1315 i40e_enable_vf_mappings(vf); 1316 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1317 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1318 /* Do not notify the client during VF init */ 1319 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1320 &vf->vf_states)) 1321 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1322 vf->num_vlan = 0; 1323 } 1324 1325 /* Tell the VF driver the reset is done. This needs to be done only 1326 * after VF has been fully initialized, because the VF driver may 1327 * request resources immediately after setting this flag. 1328 */ 1329 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1330 } 1331 1332 /** 1333 * i40e_reset_vf 1334 * @vf: pointer to the VF structure 1335 * @flr: VFLR was issued or not 1336 * 1337 * Returns true if the VF is reset, false otherwise. 1338 **/ 1339 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1340 { 1341 struct i40e_pf *pf = vf->pf; 1342 struct i40e_hw *hw = &pf->hw; 1343 bool rsd = false; 1344 u32 reg; 1345 int i; 1346 1347 /* If the VFs have been disabled, this means something else is 1348 * resetting the VF, so we shouldn't continue. 1349 */ 1350 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1351 return false; 1352 1353 i40e_trigger_vf_reset(vf, flr); 1354 1355 /* poll VPGEN_VFRSTAT reg to make sure 1356 * that reset is complete 1357 */ 1358 for (i = 0; i < 10; i++) { 1359 /* VF reset requires driver to first reset the VF and then 1360 * poll the status register to make sure that the reset 1361 * completed successfully. Due to internal HW FIFO flushes, 1362 * we must wait 10ms before the register will be valid. 1363 */ 1364 usleep_range(10000, 20000); 1365 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1366 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1367 rsd = true; 1368 break; 1369 } 1370 } 1371 1372 if (flr) 1373 usleep_range(10000, 20000); 1374 1375 if (!rsd) 1376 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1377 vf->vf_id); 1378 usleep_range(10000, 20000); 1379 1380 /* On initial reset, we don't have any queues to disable */ 1381 if (vf->lan_vsi_idx != 0) 1382 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1383 1384 i40e_cleanup_reset_vf(vf); 1385 1386 i40e_flush(hw); 1387 clear_bit(__I40E_VF_DISABLE, pf->state); 1388 1389 return true; 1390 } 1391 1392 /** 1393 * i40e_reset_all_vfs 1394 * @pf: pointer to the PF structure 1395 * @flr: VFLR was issued or not 1396 * 1397 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1398 * VF, then do all the waiting in one chunk, and finally finish restoring each 1399 * VF after the wait. This is useful during PF routines which need to reset 1400 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1401 * 1402 * Returns true if any VFs were reset, and false otherwise. 1403 **/ 1404 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1405 { 1406 struct i40e_hw *hw = &pf->hw; 1407 struct i40e_vf *vf; 1408 int i, v; 1409 u32 reg; 1410 1411 /* If we don't have any VFs, then there is nothing to reset */ 1412 if (!pf->num_alloc_vfs) 1413 return false; 1414 1415 /* If VFs have been disabled, there is no need to reset */ 1416 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1417 return false; 1418 1419 /* Begin reset on all VFs at once */ 1420 for (v = 0; v < pf->num_alloc_vfs; v++) 1421 i40e_trigger_vf_reset(&pf->vf[v], flr); 1422 1423 /* HW requires some time to make sure it can flush the FIFO for a VF 1424 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1425 * sequence to make sure that it has completed. We'll keep track of 1426 * the VFs using a simple iterator that increments once that VF has 1427 * finished resetting. 1428 */ 1429 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1430 usleep_range(10000, 20000); 1431 1432 /* Check each VF in sequence, beginning with the VF to fail 1433 * the previous check. 1434 */ 1435 while (v < pf->num_alloc_vfs) { 1436 vf = &pf->vf[v]; 1437 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1438 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1439 break; 1440 1441 /* If the current VF has finished resetting, move on 1442 * to the next VF in sequence. 1443 */ 1444 v++; 1445 } 1446 } 1447 1448 if (flr) 1449 usleep_range(10000, 20000); 1450 1451 /* Display a warning if at least one VF didn't manage to reset in 1452 * time, but continue on with the operation. 1453 */ 1454 if (v < pf->num_alloc_vfs) 1455 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1456 pf->vf[v].vf_id); 1457 usleep_range(10000, 20000); 1458 1459 /* Begin disabling all the rings associated with VFs, but do not wait 1460 * between each VF. 1461 */ 1462 for (v = 0; v < pf->num_alloc_vfs; v++) { 1463 /* On initial reset, we don't have any queues to disable */ 1464 if (pf->vf[v].lan_vsi_idx == 0) 1465 continue; 1466 1467 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1468 } 1469 1470 /* Now that we've notified HW to disable all of the VF rings, wait 1471 * until they finish. 1472 */ 1473 for (v = 0; v < pf->num_alloc_vfs; v++) { 1474 /* On initial reset, we don't have any queues to disable */ 1475 if (pf->vf[v].lan_vsi_idx == 0) 1476 continue; 1477 1478 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1479 } 1480 1481 /* Hw may need up to 50ms to finish disabling the RX queues. We 1482 * minimize the wait by delaying only once for all VFs. 1483 */ 1484 mdelay(50); 1485 1486 /* Finish the reset on each VF */ 1487 for (v = 0; v < pf->num_alloc_vfs; v++) 1488 i40e_cleanup_reset_vf(&pf->vf[v]); 1489 1490 i40e_flush(hw); 1491 clear_bit(__I40E_VF_DISABLE, pf->state); 1492 1493 return true; 1494 } 1495 1496 /** 1497 * i40e_free_vfs 1498 * @pf: pointer to the PF structure 1499 * 1500 * free VF resources 1501 **/ 1502 void i40e_free_vfs(struct i40e_pf *pf) 1503 { 1504 struct i40e_hw *hw = &pf->hw; 1505 u32 reg_idx, bit_idx; 1506 int i, tmp, vf_id; 1507 1508 if (!pf->vf) 1509 return; 1510 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1511 usleep_range(1000, 2000); 1512 1513 i40e_notify_client_of_vf_enable(pf, 0); 1514 1515 /* Amortize wait time by stopping all VFs at the same time */ 1516 for (i = 0; i < pf->num_alloc_vfs; i++) { 1517 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1518 continue; 1519 1520 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1521 } 1522 1523 for (i = 0; i < pf->num_alloc_vfs; i++) { 1524 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1525 continue; 1526 1527 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1528 } 1529 1530 /* Disable IOV before freeing resources. This lets any VF drivers 1531 * running in the host get themselves cleaned up before we yank 1532 * the carpet out from underneath their feet. 1533 */ 1534 if (!pci_vfs_assigned(pf->pdev)) 1535 pci_disable_sriov(pf->pdev); 1536 else 1537 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1538 1539 /* free up VF resources */ 1540 tmp = pf->num_alloc_vfs; 1541 pf->num_alloc_vfs = 0; 1542 for (i = 0; i < tmp; i++) { 1543 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1544 i40e_free_vf_res(&pf->vf[i]); 1545 /* disable qp mappings */ 1546 i40e_disable_vf_mappings(&pf->vf[i]); 1547 } 1548 1549 kfree(pf->vf); 1550 pf->vf = NULL; 1551 1552 /* This check is for when the driver is unloaded while VFs are 1553 * assigned. Setting the number of VFs to 0 through sysfs is caught 1554 * before this function ever gets called. 1555 */ 1556 if (!pci_vfs_assigned(pf->pdev)) { 1557 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1558 * work correctly when SR-IOV gets re-enabled. 1559 */ 1560 for (vf_id = 0; vf_id < tmp; vf_id++) { 1561 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1562 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1563 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1564 } 1565 } 1566 clear_bit(__I40E_VF_DISABLE, pf->state); 1567 } 1568 1569 #ifdef CONFIG_PCI_IOV 1570 /** 1571 * i40e_alloc_vfs 1572 * @pf: pointer to the PF structure 1573 * @num_alloc_vfs: number of VFs to allocate 1574 * 1575 * allocate VF resources 1576 **/ 1577 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1578 { 1579 struct i40e_vf *vfs; 1580 int i, ret = 0; 1581 1582 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1583 i40e_irq_dynamic_disable_icr0(pf); 1584 1585 /* Check to see if we're just allocating resources for extant VFs */ 1586 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1587 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1588 if (ret) { 1589 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1590 pf->num_alloc_vfs = 0; 1591 goto err_iov; 1592 } 1593 } 1594 /* allocate memory */ 1595 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1596 if (!vfs) { 1597 ret = -ENOMEM; 1598 goto err_alloc; 1599 } 1600 pf->vf = vfs; 1601 1602 /* apply default profile */ 1603 for (i = 0; i < num_alloc_vfs; i++) { 1604 vfs[i].pf = pf; 1605 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1606 vfs[i].vf_id = i; 1607 1608 /* assign default capabilities */ 1609 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1610 vfs[i].spoofchk = true; 1611 1612 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1613 1614 } 1615 pf->num_alloc_vfs = num_alloc_vfs; 1616 1617 /* VF resources get allocated during reset */ 1618 i40e_reset_all_vfs(pf, false); 1619 1620 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1621 1622 err_alloc: 1623 if (ret) 1624 i40e_free_vfs(pf); 1625 err_iov: 1626 /* Re-enable interrupt 0. */ 1627 i40e_irq_dynamic_enable_icr0(pf); 1628 return ret; 1629 } 1630 1631 #endif 1632 /** 1633 * i40e_pci_sriov_enable 1634 * @pdev: pointer to a pci_dev structure 1635 * @num_vfs: number of VFs to allocate 1636 * 1637 * Enable or change the number of VFs 1638 **/ 1639 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1640 { 1641 #ifdef CONFIG_PCI_IOV 1642 struct i40e_pf *pf = pci_get_drvdata(pdev); 1643 int pre_existing_vfs = pci_num_vf(pdev); 1644 int err = 0; 1645 1646 if (test_bit(__I40E_TESTING, pf->state)) { 1647 dev_warn(&pdev->dev, 1648 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1649 err = -EPERM; 1650 goto err_out; 1651 } 1652 1653 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1654 i40e_free_vfs(pf); 1655 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1656 goto out; 1657 1658 if (num_vfs > pf->num_req_vfs) { 1659 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1660 num_vfs, pf->num_req_vfs); 1661 err = -EPERM; 1662 goto err_out; 1663 } 1664 1665 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1666 err = i40e_alloc_vfs(pf, num_vfs); 1667 if (err) { 1668 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1669 goto err_out; 1670 } 1671 1672 out: 1673 return num_vfs; 1674 1675 err_out: 1676 return err; 1677 #endif 1678 return 0; 1679 } 1680 1681 /** 1682 * i40e_pci_sriov_configure 1683 * @pdev: pointer to a pci_dev structure 1684 * @num_vfs: number of VFs to allocate 1685 * 1686 * Enable or change the number of VFs. Called when the user updates the number 1687 * of VFs in sysfs. 1688 **/ 1689 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1690 { 1691 struct i40e_pf *pf = pci_get_drvdata(pdev); 1692 int ret = 0; 1693 1694 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1695 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1696 return -EAGAIN; 1697 } 1698 1699 if (num_vfs) { 1700 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1701 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1702 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); 1703 } 1704 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1705 goto sriov_configure_out; 1706 } 1707 1708 if (!pci_vfs_assigned(pf->pdev)) { 1709 i40e_free_vfs(pf); 1710 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1711 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); 1712 } else { 1713 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1714 ret = -EINVAL; 1715 goto sriov_configure_out; 1716 } 1717 sriov_configure_out: 1718 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1719 return ret; 1720 } 1721 1722 /***********************virtual channel routines******************/ 1723 1724 /** 1725 * i40e_vc_send_msg_to_vf 1726 * @vf: pointer to the VF info 1727 * @v_opcode: virtual channel opcode 1728 * @v_retval: virtual channel return value 1729 * @msg: pointer to the msg buffer 1730 * @msglen: msg length 1731 * 1732 * send msg to VF 1733 **/ 1734 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1735 u32 v_retval, u8 *msg, u16 msglen) 1736 { 1737 struct i40e_pf *pf; 1738 struct i40e_hw *hw; 1739 int abs_vf_id; 1740 i40e_status aq_ret; 1741 1742 /* validate the request */ 1743 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1744 return -EINVAL; 1745 1746 pf = vf->pf; 1747 hw = &pf->hw; 1748 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1749 1750 /* single place to detect unsuccessful return values */ 1751 if (v_retval) { 1752 vf->num_invalid_msgs++; 1753 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1754 vf->vf_id, v_opcode, v_retval); 1755 if (vf->num_invalid_msgs > 1756 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1757 dev_err(&pf->pdev->dev, 1758 "Number of invalid messages exceeded for VF %d\n", 1759 vf->vf_id); 1760 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1761 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1762 } 1763 } else { 1764 vf->num_valid_msgs++; 1765 /* reset the invalid counter, if a valid message is received. */ 1766 vf->num_invalid_msgs = 0; 1767 } 1768 1769 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1770 msg, msglen, NULL); 1771 if (aq_ret) { 1772 dev_info(&pf->pdev->dev, 1773 "Unable to send the message to VF %d aq_err %d\n", 1774 vf->vf_id, pf->hw.aq.asq_last_status); 1775 return -EIO; 1776 } 1777 1778 return 0; 1779 } 1780 1781 /** 1782 * i40e_vc_send_resp_to_vf 1783 * @vf: pointer to the VF info 1784 * @opcode: operation code 1785 * @retval: return value 1786 * 1787 * send resp msg to VF 1788 **/ 1789 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1790 enum virtchnl_ops opcode, 1791 i40e_status retval) 1792 { 1793 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1794 } 1795 1796 /** 1797 * i40e_vc_get_version_msg 1798 * @vf: pointer to the VF info 1799 * @msg: pointer to the msg buffer 1800 * 1801 * called from the VF to request the API version used by the PF 1802 **/ 1803 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1804 { 1805 struct virtchnl_version_info info = { 1806 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 1807 }; 1808 1809 vf->vf_ver = *(struct virtchnl_version_info *)msg; 1810 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1811 if (VF_IS_V10(&vf->vf_ver)) 1812 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1813 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 1814 I40E_SUCCESS, (u8 *)&info, 1815 sizeof(struct virtchnl_version_info)); 1816 } 1817 1818 /** 1819 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 1820 * @vf: pointer to VF structure 1821 **/ 1822 static void i40e_del_qch(struct i40e_vf *vf) 1823 { 1824 struct i40e_pf *pf = vf->pf; 1825 int i; 1826 1827 /* first element in the array belongs to primary VF VSI and we shouldn't 1828 * delete it. We should however delete the rest of the VSIs created 1829 */ 1830 for (i = 1; i < vf->num_tc; i++) { 1831 if (vf->ch[i].vsi_idx) { 1832 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 1833 vf->ch[i].vsi_idx = 0; 1834 vf->ch[i].vsi_id = 0; 1835 } 1836 } 1837 } 1838 1839 /** 1840 * i40e_vc_get_vf_resources_msg 1841 * @vf: pointer to the VF info 1842 * @msg: pointer to the msg buffer 1843 * 1844 * called from the VF to request its resources 1845 **/ 1846 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1847 { 1848 struct virtchnl_vf_resource *vfres = NULL; 1849 struct i40e_pf *pf = vf->pf; 1850 i40e_status aq_ret = 0; 1851 struct i40e_vsi *vsi; 1852 int num_vsis = 1; 1853 size_t len = 0; 1854 int ret; 1855 1856 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 1857 aq_ret = I40E_ERR_PARAM; 1858 goto err; 1859 } 1860 1861 len = struct_size(vfres, vsi_res, num_vsis); 1862 vfres = kzalloc(len, GFP_KERNEL); 1863 if (!vfres) { 1864 aq_ret = I40E_ERR_NO_MEMORY; 1865 len = 0; 1866 goto err; 1867 } 1868 if (VF_IS_V11(&vf->vf_ver)) 1869 vf->driver_caps = *(u32 *)msg; 1870 else 1871 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 1872 VIRTCHNL_VF_OFFLOAD_RSS_REG | 1873 VIRTCHNL_VF_OFFLOAD_VLAN; 1874 1875 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 1876 vsi = pf->vsi[vf->lan_vsi_idx]; 1877 if (!vsi->info.pvid) 1878 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 1879 1880 if (i40e_vf_client_capable(pf, vf->vf_id) && 1881 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 1882 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 1883 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 1884 } else { 1885 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 1886 } 1887 1888 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 1889 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 1890 } else { 1891 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 1892 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 1893 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1894 else 1895 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 1896 } 1897 1898 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1899 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1900 vfres->vf_cap_flags |= 1901 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1902 } 1903 1904 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 1905 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 1906 1907 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 1908 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 1909 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 1910 1911 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 1912 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 1913 dev_err(&pf->pdev->dev, 1914 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 1915 vf->vf_id); 1916 aq_ret = I40E_ERR_PARAM; 1917 goto err; 1918 } 1919 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1920 } 1921 1922 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 1923 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1924 vfres->vf_cap_flags |= 1925 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1926 } 1927 1928 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 1929 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 1930 1931 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 1932 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 1933 1934 vfres->num_vsis = num_vsis; 1935 vfres->num_queue_pairs = vf->num_queue_pairs; 1936 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 1937 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 1938 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 1939 1940 if (vf->lan_vsi_idx) { 1941 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 1942 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 1943 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 1944 /* VFs only use TC 0 */ 1945 vfres->vsi_res[0].qset_handle 1946 = le16_to_cpu(vsi->info.qs_handle[0]); 1947 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 1948 vf->default_lan_addr.addr); 1949 } 1950 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1951 1952 err: 1953 /* send the response back to the VF */ 1954 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 1955 aq_ret, (u8 *)vfres, len); 1956 1957 kfree(vfres); 1958 return ret; 1959 } 1960 1961 /** 1962 * i40e_vc_reset_vf_msg 1963 * @vf: pointer to the VF info 1964 * 1965 * called from the VF to reset itself, 1966 * unlike other virtchnl messages, PF driver 1967 * doesn't send the response back to the VF 1968 **/ 1969 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 1970 { 1971 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 1972 i40e_reset_vf(vf, false); 1973 } 1974 1975 /** 1976 * i40e_getnum_vf_vsi_vlan_filters 1977 * @vsi: pointer to the vsi 1978 * 1979 * called to get the number of VLANs offloaded on this VF 1980 **/ 1981 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1982 { 1983 struct i40e_mac_filter *f; 1984 int num_vlans = 0, bkt; 1985 1986 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1987 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1988 num_vlans++; 1989 } 1990 1991 return num_vlans; 1992 } 1993 1994 /** 1995 * i40e_vc_config_promiscuous_mode_msg 1996 * @vf: pointer to the VF info 1997 * @msg: pointer to the msg buffer 1998 * 1999 * called from the VF to configure the promiscuous mode of 2000 * VF vsis 2001 **/ 2002 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2003 { 2004 struct virtchnl_promisc_info *info = 2005 (struct virtchnl_promisc_info *)msg; 2006 struct i40e_pf *pf = vf->pf; 2007 i40e_status aq_ret = 0; 2008 bool allmulti = false; 2009 bool alluni = false; 2010 2011 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2012 aq_ret = I40E_ERR_PARAM; 2013 goto err_out; 2014 } 2015 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2016 dev_err(&pf->pdev->dev, 2017 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2018 vf->vf_id); 2019 2020 /* Lie to the VF on purpose, because this is an error we can 2021 * ignore. Unprivileged VF is not a virtual channel error. 2022 */ 2023 aq_ret = 0; 2024 goto err_out; 2025 } 2026 2027 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2028 aq_ret = I40E_ERR_PARAM; 2029 goto err_out; 2030 } 2031 2032 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2033 aq_ret = I40E_ERR_PARAM; 2034 goto err_out; 2035 } 2036 2037 /* Multicast promiscuous handling*/ 2038 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2039 allmulti = true; 2040 2041 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2042 alluni = true; 2043 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2044 alluni); 2045 if (aq_ret) 2046 goto err_out; 2047 2048 if (allmulti) { 2049 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2050 &vf->vf_states)) 2051 dev_info(&pf->pdev->dev, 2052 "VF %d successfully set multicast promiscuous mode\n", 2053 vf->vf_id); 2054 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2055 &vf->vf_states)) 2056 dev_info(&pf->pdev->dev, 2057 "VF %d successfully unset multicast promiscuous mode\n", 2058 vf->vf_id); 2059 2060 if (alluni) { 2061 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2062 &vf->vf_states)) 2063 dev_info(&pf->pdev->dev, 2064 "VF %d successfully set unicast promiscuous mode\n", 2065 vf->vf_id); 2066 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2067 &vf->vf_states)) 2068 dev_info(&pf->pdev->dev, 2069 "VF %d successfully unset unicast promiscuous mode\n", 2070 vf->vf_id); 2071 2072 err_out: 2073 /* send the response to the VF */ 2074 return i40e_vc_send_resp_to_vf(vf, 2075 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2076 aq_ret); 2077 } 2078 2079 /** 2080 * i40e_vc_config_queues_msg 2081 * @vf: pointer to the VF info 2082 * @msg: pointer to the msg buffer 2083 * 2084 * called from the VF to configure the rx/tx 2085 * queues 2086 **/ 2087 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2088 { 2089 struct virtchnl_vsi_queue_config_info *qci = 2090 (struct virtchnl_vsi_queue_config_info *)msg; 2091 struct virtchnl_queue_pair_info *qpi; 2092 struct i40e_pf *pf = vf->pf; 2093 u16 vsi_id, vsi_queue_id = 0; 2094 u16 num_qps_all = 0; 2095 i40e_status aq_ret = 0; 2096 int i, j = 0, idx = 0; 2097 2098 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2099 aq_ret = I40E_ERR_PARAM; 2100 goto error_param; 2101 } 2102 2103 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2104 aq_ret = I40E_ERR_PARAM; 2105 goto error_param; 2106 } 2107 2108 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2109 aq_ret = I40E_ERR_PARAM; 2110 goto error_param; 2111 } 2112 2113 if (vf->adq_enabled) { 2114 for (i = 0; i < I40E_MAX_VF_VSI; i++) 2115 num_qps_all += vf->ch[i].num_qps; 2116 if (num_qps_all != qci->num_queue_pairs) { 2117 aq_ret = I40E_ERR_PARAM; 2118 goto error_param; 2119 } 2120 } 2121 2122 vsi_id = qci->vsi_id; 2123 2124 for (i = 0; i < qci->num_queue_pairs; i++) { 2125 qpi = &qci->qpair[i]; 2126 2127 if (!vf->adq_enabled) { 2128 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2129 qpi->txq.queue_id)) { 2130 aq_ret = I40E_ERR_PARAM; 2131 goto error_param; 2132 } 2133 2134 vsi_queue_id = qpi->txq.queue_id; 2135 2136 if (qpi->txq.vsi_id != qci->vsi_id || 2137 qpi->rxq.vsi_id != qci->vsi_id || 2138 qpi->rxq.queue_id != vsi_queue_id) { 2139 aq_ret = I40E_ERR_PARAM; 2140 goto error_param; 2141 } 2142 } 2143 2144 if (vf->adq_enabled) { 2145 if (idx >= ARRAY_SIZE(vf->ch)) { 2146 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2147 goto error_param; 2148 } 2149 vsi_id = vf->ch[idx].vsi_id; 2150 } 2151 2152 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2153 &qpi->rxq) || 2154 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2155 &qpi->txq)) { 2156 aq_ret = I40E_ERR_PARAM; 2157 goto error_param; 2158 } 2159 2160 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2161 * VF does not know about these additional VSIs and all 2162 * it cares is about its own queues. PF configures these queues 2163 * to its appropriate VSIs based on TC mapping 2164 */ 2165 if (vf->adq_enabled) { 2166 if (idx >= ARRAY_SIZE(vf->ch)) { 2167 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2168 goto error_param; 2169 } 2170 if (j == (vf->ch[idx].num_qps - 1)) { 2171 idx++; 2172 j = 0; /* resetting the queue count */ 2173 vsi_queue_id = 0; 2174 } else { 2175 j++; 2176 vsi_queue_id++; 2177 } 2178 } 2179 } 2180 /* set vsi num_queue_pairs in use to num configured by VF */ 2181 if (!vf->adq_enabled) { 2182 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2183 qci->num_queue_pairs; 2184 } else { 2185 for (i = 0; i < vf->num_tc; i++) 2186 pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs = 2187 vf->ch[i].num_qps; 2188 } 2189 2190 error_param: 2191 /* send the response to the VF */ 2192 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2193 aq_ret); 2194 } 2195 2196 /** 2197 * i40e_validate_queue_map 2198 * @vsi_id: vsi id 2199 * @queuemap: Tx or Rx queue map 2200 * 2201 * check if Tx or Rx queue map is valid 2202 **/ 2203 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2204 unsigned long queuemap) 2205 { 2206 u16 vsi_queue_id, queue_id; 2207 2208 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2209 if (vf->adq_enabled) { 2210 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2211 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2212 } else { 2213 queue_id = vsi_queue_id; 2214 } 2215 2216 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2217 return -EINVAL; 2218 } 2219 2220 return 0; 2221 } 2222 2223 /** 2224 * i40e_vc_config_irq_map_msg 2225 * @vf: pointer to the VF info 2226 * @msg: pointer to the msg buffer 2227 * 2228 * called from the VF to configure the irq to 2229 * queue map 2230 **/ 2231 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2232 { 2233 struct virtchnl_irq_map_info *irqmap_info = 2234 (struct virtchnl_irq_map_info *)msg; 2235 struct virtchnl_vector_map *map; 2236 u16 vsi_id; 2237 i40e_status aq_ret = 0; 2238 int i; 2239 2240 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2241 aq_ret = I40E_ERR_PARAM; 2242 goto error_param; 2243 } 2244 2245 if (irqmap_info->num_vectors > 2246 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2247 aq_ret = I40E_ERR_PARAM; 2248 goto error_param; 2249 } 2250 2251 for (i = 0; i < irqmap_info->num_vectors; i++) { 2252 map = &irqmap_info->vecmap[i]; 2253 /* validate msg params */ 2254 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2255 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2256 aq_ret = I40E_ERR_PARAM; 2257 goto error_param; 2258 } 2259 vsi_id = map->vsi_id; 2260 2261 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2262 aq_ret = I40E_ERR_PARAM; 2263 goto error_param; 2264 } 2265 2266 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2267 aq_ret = I40E_ERR_PARAM; 2268 goto error_param; 2269 } 2270 2271 i40e_config_irq_link_list(vf, vsi_id, map); 2272 } 2273 error_param: 2274 /* send the response to the VF */ 2275 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2276 aq_ret); 2277 } 2278 2279 /** 2280 * i40e_ctrl_vf_tx_rings 2281 * @vsi: the SRIOV VSI being configured 2282 * @q_map: bit map of the queues to be enabled 2283 * @enable: start or stop the queue 2284 **/ 2285 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2286 bool enable) 2287 { 2288 struct i40e_pf *pf = vsi->back; 2289 int ret = 0; 2290 u16 q_id; 2291 2292 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2293 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2294 vsi->base_queue + q_id, 2295 false /*is xdp*/, enable); 2296 if (ret) 2297 break; 2298 } 2299 return ret; 2300 } 2301 2302 /** 2303 * i40e_ctrl_vf_rx_rings 2304 * @vsi: the SRIOV VSI being configured 2305 * @q_map: bit map of the queues to be enabled 2306 * @enable: start or stop the queue 2307 **/ 2308 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2309 bool enable) 2310 { 2311 struct i40e_pf *pf = vsi->back; 2312 int ret = 0; 2313 u16 q_id; 2314 2315 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2316 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2317 enable); 2318 if (ret) 2319 break; 2320 } 2321 return ret; 2322 } 2323 2324 /** 2325 * i40e_vc_enable_queues_msg 2326 * @vf: pointer to the VF info 2327 * @msg: pointer to the msg buffer 2328 * 2329 * called from the VF to enable all or specific queue(s) 2330 **/ 2331 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2332 { 2333 struct virtchnl_queue_select *vqs = 2334 (struct virtchnl_queue_select *)msg; 2335 struct i40e_pf *pf = vf->pf; 2336 i40e_status aq_ret = 0; 2337 int i; 2338 2339 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2340 aq_ret = I40E_ERR_PARAM; 2341 goto error_param; 2342 } 2343 2344 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2345 aq_ret = I40E_ERR_PARAM; 2346 goto error_param; 2347 } 2348 2349 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 2350 aq_ret = I40E_ERR_PARAM; 2351 goto error_param; 2352 } 2353 2354 /* Use the queue bit map sent by the VF */ 2355 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2356 true)) { 2357 aq_ret = I40E_ERR_TIMEOUT; 2358 goto error_param; 2359 } 2360 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2361 true)) { 2362 aq_ret = I40E_ERR_TIMEOUT; 2363 goto error_param; 2364 } 2365 2366 /* need to start the rings for additional ADq VSI's as well */ 2367 if (vf->adq_enabled) { 2368 /* zero belongs to LAN VSI */ 2369 for (i = 1; i < vf->num_tc; i++) { 2370 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2371 aq_ret = I40E_ERR_TIMEOUT; 2372 } 2373 } 2374 2375 vf->queues_enabled = true; 2376 2377 error_param: 2378 /* send the response to the VF */ 2379 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2380 aq_ret); 2381 } 2382 2383 /** 2384 * i40e_vc_disable_queues_msg 2385 * @vf: pointer to the VF info 2386 * @msg: pointer to the msg buffer 2387 * 2388 * called from the VF to disable all or specific 2389 * queue(s) 2390 **/ 2391 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2392 { 2393 struct virtchnl_queue_select *vqs = 2394 (struct virtchnl_queue_select *)msg; 2395 struct i40e_pf *pf = vf->pf; 2396 i40e_status aq_ret = 0; 2397 2398 /* Immediately mark queues as disabled */ 2399 vf->queues_enabled = false; 2400 2401 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2402 aq_ret = I40E_ERR_PARAM; 2403 goto error_param; 2404 } 2405 2406 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2407 aq_ret = I40E_ERR_PARAM; 2408 goto error_param; 2409 } 2410 2411 if ((vqs->rx_queues == 0 && vqs->tx_queues == 0) || 2412 vqs->rx_queues > I40E_MAX_VF_QUEUES || 2413 vqs->tx_queues > I40E_MAX_VF_QUEUES) { 2414 aq_ret = I40E_ERR_PARAM; 2415 goto error_param; 2416 } 2417 2418 /* Use the queue bit map sent by the VF */ 2419 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2420 false)) { 2421 aq_ret = I40E_ERR_TIMEOUT; 2422 goto error_param; 2423 } 2424 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2425 false)) { 2426 aq_ret = I40E_ERR_TIMEOUT; 2427 goto error_param; 2428 } 2429 error_param: 2430 /* send the response to the VF */ 2431 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2432 aq_ret); 2433 } 2434 2435 /** 2436 * i40e_vc_request_queues_msg 2437 * @vf: pointer to the VF info 2438 * @msg: pointer to the msg buffer 2439 * 2440 * VFs get a default number of queues but can use this message to request a 2441 * different number. If the request is successful, PF will reset the VF and 2442 * return 0. If unsuccessful, PF will send message informing VF of number of 2443 * available queues and return result of sending VF a message. 2444 **/ 2445 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2446 { 2447 struct virtchnl_vf_res_request *vfres = 2448 (struct virtchnl_vf_res_request *)msg; 2449 u16 req_pairs = vfres->num_queue_pairs; 2450 u8 cur_pairs = vf->num_queue_pairs; 2451 struct i40e_pf *pf = vf->pf; 2452 2453 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 2454 return -EINVAL; 2455 2456 if (req_pairs > I40E_MAX_VF_QUEUES) { 2457 dev_err(&pf->pdev->dev, 2458 "VF %d tried to request more than %d queues.\n", 2459 vf->vf_id, 2460 I40E_MAX_VF_QUEUES); 2461 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2462 } else if (req_pairs - cur_pairs > pf->queues_left) { 2463 dev_warn(&pf->pdev->dev, 2464 "VF %d requested %d more queues, but only %d left.\n", 2465 vf->vf_id, 2466 req_pairs - cur_pairs, 2467 pf->queues_left); 2468 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2469 } else { 2470 /* successful request */ 2471 vf->num_req_queues = req_pairs; 2472 i40e_vc_notify_vf_reset(vf); 2473 i40e_reset_vf(vf, false); 2474 return 0; 2475 } 2476 2477 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2478 (u8 *)vfres, sizeof(*vfres)); 2479 } 2480 2481 /** 2482 * i40e_vc_get_stats_msg 2483 * @vf: pointer to the VF info 2484 * @msg: pointer to the msg buffer 2485 * 2486 * called from the VF to get vsi stats 2487 **/ 2488 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2489 { 2490 struct virtchnl_queue_select *vqs = 2491 (struct virtchnl_queue_select *)msg; 2492 struct i40e_pf *pf = vf->pf; 2493 struct i40e_eth_stats stats; 2494 i40e_status aq_ret = 0; 2495 struct i40e_vsi *vsi; 2496 2497 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2498 2499 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2500 aq_ret = I40E_ERR_PARAM; 2501 goto error_param; 2502 } 2503 2504 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2505 aq_ret = I40E_ERR_PARAM; 2506 goto error_param; 2507 } 2508 2509 vsi = pf->vsi[vf->lan_vsi_idx]; 2510 if (!vsi) { 2511 aq_ret = I40E_ERR_PARAM; 2512 goto error_param; 2513 } 2514 i40e_update_eth_stats(vsi); 2515 stats = vsi->eth_stats; 2516 2517 error_param: 2518 /* send the response back to the VF */ 2519 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2520 (u8 *)&stats, sizeof(stats)); 2521 } 2522 2523 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2524 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2525 */ 2526 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2527 #define I40E_VC_MAX_VLAN_PER_VF 16 2528 2529 /** 2530 * i40e_check_vf_permission 2531 * @vf: pointer to the VF info 2532 * @al: MAC address list from virtchnl 2533 * 2534 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2535 * if any address in the list is not valid. Checks the following conditions: 2536 * 2537 * 1) broadcast and zero addresses are never valid 2538 * 2) unicast addresses are not allowed if the VMM has administratively set 2539 * the VF MAC address, unless the VF is marked as privileged. 2540 * 3) There is enough space to add all the addresses. 2541 * 2542 * Note that to guarantee consistency, it is expected this function be called 2543 * while holding the mac_filter_hash_lock, as otherwise the current number of 2544 * addresses might not be accurate. 2545 **/ 2546 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2547 struct virtchnl_ether_addr_list *al) 2548 { 2549 struct i40e_pf *pf = vf->pf; 2550 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2551 int mac2add_cnt = 0; 2552 int i; 2553 2554 for (i = 0; i < al->num_elements; i++) { 2555 struct i40e_mac_filter *f; 2556 u8 *addr = al->list[i].addr; 2557 2558 if (is_broadcast_ether_addr(addr) || 2559 is_zero_ether_addr(addr)) { 2560 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2561 addr); 2562 return I40E_ERR_INVALID_MAC_ADDR; 2563 } 2564 2565 /* If the host VMM administrator has set the VF MAC address 2566 * administratively via the ndo_set_vf_mac command then deny 2567 * permission to the VF to add or delete unicast MAC addresses. 2568 * Unless the VF is privileged and then it can do whatever. 2569 * The VF may request to set the MAC address filter already 2570 * assigned to it so do not return an error in that case. 2571 */ 2572 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2573 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2574 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2575 dev_err(&pf->pdev->dev, 2576 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2577 return -EPERM; 2578 } 2579 2580 /*count filters that really will be added*/ 2581 f = i40e_find_mac(vsi, addr); 2582 if (!f) 2583 ++mac2add_cnt; 2584 } 2585 2586 /* If this VF is not privileged, then we can't add more than a limited 2587 * number of addresses. Check to make sure that the additions do not 2588 * push us over the limit. 2589 */ 2590 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2591 (i40e_count_filters(vsi) + mac2add_cnt) > 2592 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2593 dev_err(&pf->pdev->dev, 2594 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2595 return -EPERM; 2596 } 2597 return 0; 2598 } 2599 2600 /** 2601 * i40e_vc_add_mac_addr_msg 2602 * @vf: pointer to the VF info 2603 * @msg: pointer to the msg buffer 2604 * 2605 * add guest mac address filter 2606 **/ 2607 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2608 { 2609 struct virtchnl_ether_addr_list *al = 2610 (struct virtchnl_ether_addr_list *)msg; 2611 struct i40e_pf *pf = vf->pf; 2612 struct i40e_vsi *vsi = NULL; 2613 i40e_status ret = 0; 2614 int i; 2615 2616 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2617 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2618 ret = I40E_ERR_PARAM; 2619 goto error_param; 2620 } 2621 2622 vsi = pf->vsi[vf->lan_vsi_idx]; 2623 2624 /* Lock once, because all function inside for loop accesses VSI's 2625 * MAC filter list which needs to be protected using same lock. 2626 */ 2627 spin_lock_bh(&vsi->mac_filter_hash_lock); 2628 2629 ret = i40e_check_vf_permission(vf, al); 2630 if (ret) { 2631 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2632 goto error_param; 2633 } 2634 2635 /* add new addresses to the list */ 2636 for (i = 0; i < al->num_elements; i++) { 2637 struct i40e_mac_filter *f; 2638 2639 f = i40e_find_mac(vsi, al->list[i].addr); 2640 if (!f) { 2641 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2642 2643 if (!f) { 2644 dev_err(&pf->pdev->dev, 2645 "Unable to add MAC filter %pM for VF %d\n", 2646 al->list[i].addr, vf->vf_id); 2647 ret = I40E_ERR_PARAM; 2648 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2649 goto error_param; 2650 } 2651 } 2652 } 2653 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2654 2655 /* program the updated filter list */ 2656 ret = i40e_sync_vsi_filters(vsi); 2657 if (ret) 2658 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2659 vf->vf_id, ret); 2660 2661 error_param: 2662 /* send the response to the VF */ 2663 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2664 ret); 2665 } 2666 2667 /** 2668 * i40e_vc_del_mac_addr_msg 2669 * @vf: pointer to the VF info 2670 * @msg: pointer to the msg buffer 2671 * 2672 * remove guest mac address filter 2673 **/ 2674 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2675 { 2676 struct virtchnl_ether_addr_list *al = 2677 (struct virtchnl_ether_addr_list *)msg; 2678 struct i40e_pf *pf = vf->pf; 2679 struct i40e_vsi *vsi = NULL; 2680 i40e_status ret = 0; 2681 int i; 2682 2683 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2684 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2685 ret = I40E_ERR_PARAM; 2686 goto error_param; 2687 } 2688 2689 for (i = 0; i < al->num_elements; i++) { 2690 if (is_broadcast_ether_addr(al->list[i].addr) || 2691 is_zero_ether_addr(al->list[i].addr)) { 2692 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2693 al->list[i].addr, vf->vf_id); 2694 ret = I40E_ERR_INVALID_MAC_ADDR; 2695 goto error_param; 2696 } 2697 } 2698 vsi = pf->vsi[vf->lan_vsi_idx]; 2699 2700 spin_lock_bh(&vsi->mac_filter_hash_lock); 2701 /* delete addresses from the list */ 2702 for (i = 0; i < al->num_elements; i++) 2703 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2704 ret = I40E_ERR_INVALID_MAC_ADDR; 2705 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2706 goto error_param; 2707 } 2708 2709 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2710 2711 /* program the updated filter list */ 2712 ret = i40e_sync_vsi_filters(vsi); 2713 if (ret) 2714 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2715 vf->vf_id, ret); 2716 2717 error_param: 2718 /* send the response to the VF */ 2719 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, 2720 ret); 2721 } 2722 2723 /** 2724 * i40e_vc_add_vlan_msg 2725 * @vf: pointer to the VF info 2726 * @msg: pointer to the msg buffer 2727 * 2728 * program guest vlan id 2729 **/ 2730 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 2731 { 2732 struct virtchnl_vlan_filter_list *vfl = 2733 (struct virtchnl_vlan_filter_list *)msg; 2734 struct i40e_pf *pf = vf->pf; 2735 struct i40e_vsi *vsi = NULL; 2736 i40e_status aq_ret = 0; 2737 int i; 2738 2739 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2740 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2741 dev_err(&pf->pdev->dev, 2742 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2743 goto error_param; 2744 } 2745 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2746 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 2747 aq_ret = I40E_ERR_PARAM; 2748 goto error_param; 2749 } 2750 2751 for (i = 0; i < vfl->num_elements; i++) { 2752 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2753 aq_ret = I40E_ERR_PARAM; 2754 dev_err(&pf->pdev->dev, 2755 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2756 goto error_param; 2757 } 2758 } 2759 vsi = pf->vsi[vf->lan_vsi_idx]; 2760 if (vsi->info.pvid) { 2761 aq_ret = I40E_ERR_PARAM; 2762 goto error_param; 2763 } 2764 2765 i40e_vlan_stripping_enable(vsi); 2766 for (i = 0; i < vfl->num_elements; i++) { 2767 /* add new VLAN filter */ 2768 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 2769 if (!ret) 2770 vf->num_vlan++; 2771 2772 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2773 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2774 true, 2775 vfl->vlan_id[i], 2776 NULL); 2777 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2778 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2779 true, 2780 vfl->vlan_id[i], 2781 NULL); 2782 2783 if (ret) 2784 dev_err(&pf->pdev->dev, 2785 "Unable to add VLAN filter %d for VF %d, error %d\n", 2786 vfl->vlan_id[i], vf->vf_id, ret); 2787 } 2788 2789 error_param: 2790 /* send the response to the VF */ 2791 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 2792 } 2793 2794 /** 2795 * i40e_vc_remove_vlan_msg 2796 * @vf: pointer to the VF info 2797 * @msg: pointer to the msg buffer 2798 * 2799 * remove programmed guest vlan id 2800 **/ 2801 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 2802 { 2803 struct virtchnl_vlan_filter_list *vfl = 2804 (struct virtchnl_vlan_filter_list *)msg; 2805 struct i40e_pf *pf = vf->pf; 2806 struct i40e_vsi *vsi = NULL; 2807 i40e_status aq_ret = 0; 2808 int i; 2809 2810 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2811 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 2812 aq_ret = I40E_ERR_PARAM; 2813 goto error_param; 2814 } 2815 2816 for (i = 0; i < vfl->num_elements; i++) { 2817 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2818 aq_ret = I40E_ERR_PARAM; 2819 goto error_param; 2820 } 2821 } 2822 2823 vsi = pf->vsi[vf->lan_vsi_idx]; 2824 if (vsi->info.pvid) { 2825 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 2826 aq_ret = I40E_ERR_PARAM; 2827 goto error_param; 2828 } 2829 2830 for (i = 0; i < vfl->num_elements; i++) { 2831 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 2832 vf->num_vlan--; 2833 2834 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2835 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2836 false, 2837 vfl->vlan_id[i], 2838 NULL); 2839 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2840 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2841 false, 2842 vfl->vlan_id[i], 2843 NULL); 2844 } 2845 2846 error_param: 2847 /* send the response to the VF */ 2848 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 2849 } 2850 2851 /** 2852 * i40e_vc_iwarp_msg 2853 * @vf: pointer to the VF info 2854 * @msg: pointer to the msg buffer 2855 * @msglen: msg length 2856 * 2857 * called from the VF for the iwarp msgs 2858 **/ 2859 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2860 { 2861 struct i40e_pf *pf = vf->pf; 2862 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 2863 i40e_status aq_ret = 0; 2864 2865 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2866 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2867 aq_ret = I40E_ERR_PARAM; 2868 goto error_param; 2869 } 2870 2871 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 2872 msg, msglen); 2873 2874 error_param: 2875 /* send the response to the VF */ 2876 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 2877 aq_ret); 2878 } 2879 2880 /** 2881 * i40e_vc_iwarp_qvmap_msg 2882 * @vf: pointer to the VF info 2883 * @msg: pointer to the msg buffer 2884 * @config: config qvmap or release it 2885 * 2886 * called from the VF for the iwarp msgs 2887 **/ 2888 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 2889 { 2890 struct virtchnl_iwarp_qvlist_info *qvlist_info = 2891 (struct virtchnl_iwarp_qvlist_info *)msg; 2892 i40e_status aq_ret = 0; 2893 2894 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2895 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2896 aq_ret = I40E_ERR_PARAM; 2897 goto error_param; 2898 } 2899 2900 if (config) { 2901 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2902 aq_ret = I40E_ERR_PARAM; 2903 } else { 2904 i40e_release_iwarp_qvlist(vf); 2905 } 2906 2907 error_param: 2908 /* send the response to the VF */ 2909 return i40e_vc_send_resp_to_vf(vf, 2910 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 2911 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 2912 aq_ret); 2913 } 2914 2915 /** 2916 * i40e_vc_config_rss_key 2917 * @vf: pointer to the VF info 2918 * @msg: pointer to the msg buffer 2919 * 2920 * Configure the VF's RSS key 2921 **/ 2922 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 2923 { 2924 struct virtchnl_rss_key *vrk = 2925 (struct virtchnl_rss_key *)msg; 2926 struct i40e_pf *pf = vf->pf; 2927 struct i40e_vsi *vsi = NULL; 2928 i40e_status aq_ret = 0; 2929 2930 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2931 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 2932 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { 2933 aq_ret = I40E_ERR_PARAM; 2934 goto err; 2935 } 2936 2937 vsi = pf->vsi[vf->lan_vsi_idx]; 2938 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 2939 err: 2940 /* send the response to the VF */ 2941 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 2942 aq_ret); 2943 } 2944 2945 /** 2946 * i40e_vc_config_rss_lut 2947 * @vf: pointer to the VF info 2948 * @msg: pointer to the msg buffer 2949 * 2950 * Configure the VF's RSS LUT 2951 **/ 2952 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 2953 { 2954 struct virtchnl_rss_lut *vrl = 2955 (struct virtchnl_rss_lut *)msg; 2956 struct i40e_pf *pf = vf->pf; 2957 struct i40e_vsi *vsi = NULL; 2958 i40e_status aq_ret = 0; 2959 u16 i; 2960 2961 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2962 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 2963 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { 2964 aq_ret = I40E_ERR_PARAM; 2965 goto err; 2966 } 2967 2968 for (i = 0; i < vrl->lut_entries; i++) 2969 if (vrl->lut[i] >= vf->num_queue_pairs) { 2970 aq_ret = I40E_ERR_PARAM; 2971 goto err; 2972 } 2973 2974 vsi = pf->vsi[vf->lan_vsi_idx]; 2975 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 2976 /* send the response to the VF */ 2977 err: 2978 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 2979 aq_ret); 2980 } 2981 2982 /** 2983 * i40e_vc_get_rss_hena 2984 * @vf: pointer to the VF info 2985 * @msg: pointer to the msg buffer 2986 * 2987 * Return the RSS HENA bits allowed by the hardware 2988 **/ 2989 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 2990 { 2991 struct virtchnl_rss_hena *vrh = NULL; 2992 struct i40e_pf *pf = vf->pf; 2993 i40e_status aq_ret = 0; 2994 int len = 0; 2995 2996 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2997 aq_ret = I40E_ERR_PARAM; 2998 goto err; 2999 } 3000 len = sizeof(struct virtchnl_rss_hena); 3001 3002 vrh = kzalloc(len, GFP_KERNEL); 3003 if (!vrh) { 3004 aq_ret = I40E_ERR_NO_MEMORY; 3005 len = 0; 3006 goto err; 3007 } 3008 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3009 err: 3010 /* send the response back to the VF */ 3011 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3012 aq_ret, (u8 *)vrh, len); 3013 kfree(vrh); 3014 return aq_ret; 3015 } 3016 3017 /** 3018 * i40e_vc_set_rss_hena 3019 * @vf: pointer to the VF info 3020 * @msg: pointer to the msg buffer 3021 * 3022 * Set the RSS HENA bits for the VF 3023 **/ 3024 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3025 { 3026 struct virtchnl_rss_hena *vrh = 3027 (struct virtchnl_rss_hena *)msg; 3028 struct i40e_pf *pf = vf->pf; 3029 struct i40e_hw *hw = &pf->hw; 3030 i40e_status aq_ret = 0; 3031 3032 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3033 aq_ret = I40E_ERR_PARAM; 3034 goto err; 3035 } 3036 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3037 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3038 (u32)(vrh->hena >> 32)); 3039 3040 /* send the response to the VF */ 3041 err: 3042 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3043 } 3044 3045 /** 3046 * i40e_vc_enable_vlan_stripping 3047 * @vf: pointer to the VF info 3048 * @msg: pointer to the msg buffer 3049 * 3050 * Enable vlan header stripping for the VF 3051 **/ 3052 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3053 { 3054 i40e_status aq_ret = 0; 3055 struct i40e_vsi *vsi; 3056 3057 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3058 aq_ret = I40E_ERR_PARAM; 3059 goto err; 3060 } 3061 3062 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3063 i40e_vlan_stripping_enable(vsi); 3064 3065 /* send the response to the VF */ 3066 err: 3067 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3068 aq_ret); 3069 } 3070 3071 /** 3072 * i40e_vc_disable_vlan_stripping 3073 * @vf: pointer to the VF info 3074 * @msg: pointer to the msg buffer 3075 * 3076 * Disable vlan header stripping for the VF 3077 **/ 3078 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3079 { 3080 i40e_status aq_ret = 0; 3081 struct i40e_vsi *vsi; 3082 3083 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3084 aq_ret = I40E_ERR_PARAM; 3085 goto err; 3086 } 3087 3088 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3089 i40e_vlan_stripping_disable(vsi); 3090 3091 /* send the response to the VF */ 3092 err: 3093 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3094 aq_ret); 3095 } 3096 3097 /** 3098 * i40e_validate_cloud_filter 3099 * @mask: mask for TC filter 3100 * @data: data for TC filter 3101 * 3102 * This function validates cloud filter programmed as TC filter for ADq 3103 **/ 3104 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3105 struct virtchnl_filter *tc_filter) 3106 { 3107 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3108 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3109 struct i40e_pf *pf = vf->pf; 3110 struct i40e_vsi *vsi = NULL; 3111 struct i40e_mac_filter *f; 3112 struct hlist_node *h; 3113 bool found = false; 3114 int bkt; 3115 3116 if (!tc_filter->action) { 3117 dev_info(&pf->pdev->dev, 3118 "VF %d: Currently ADq doesn't support Drop Action\n", 3119 vf->vf_id); 3120 goto err; 3121 } 3122 3123 /* action_meta is TC number here to which the filter is applied */ 3124 if (!tc_filter->action_meta || 3125 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3126 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3127 vf->vf_id, tc_filter->action_meta); 3128 goto err; 3129 } 3130 3131 /* Check filter if it's programmed for advanced mode or basic mode. 3132 * There are two ADq modes (for VF only), 3133 * 1. Basic mode: intended to allow as many filter options as possible 3134 * to be added to a VF in Non-trusted mode. Main goal is 3135 * to add filters to its own MAC and VLAN id. 3136 * 2. Advanced mode: is for allowing filters to be applied other than 3137 * its own MAC or VLAN. This mode requires the VF to be 3138 * Trusted. 3139 */ 3140 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3141 vsi = pf->vsi[vf->lan_vsi_idx]; 3142 f = i40e_find_mac(vsi, data.dst_mac); 3143 3144 if (!f) { 3145 dev_info(&pf->pdev->dev, 3146 "Destination MAC %pM doesn't belong to VF %d\n", 3147 data.dst_mac, vf->vf_id); 3148 goto err; 3149 } 3150 3151 if (mask.vlan_id) { 3152 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3153 hlist) { 3154 if (f->vlan == ntohs(data.vlan_id)) { 3155 found = true; 3156 break; 3157 } 3158 } 3159 if (!found) { 3160 dev_info(&pf->pdev->dev, 3161 "VF %d doesn't have any VLAN id %u\n", 3162 vf->vf_id, ntohs(data.vlan_id)); 3163 goto err; 3164 } 3165 } 3166 } else { 3167 /* Check if VF is trusted */ 3168 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3169 dev_err(&pf->pdev->dev, 3170 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3171 vf->vf_id); 3172 return I40E_ERR_CONFIG; 3173 } 3174 } 3175 3176 if (mask.dst_mac[0] & data.dst_mac[0]) { 3177 if (is_broadcast_ether_addr(data.dst_mac) || 3178 is_zero_ether_addr(data.dst_mac)) { 3179 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3180 vf->vf_id, data.dst_mac); 3181 goto err; 3182 } 3183 } 3184 3185 if (mask.src_mac[0] & data.src_mac[0]) { 3186 if (is_broadcast_ether_addr(data.src_mac) || 3187 is_zero_ether_addr(data.src_mac)) { 3188 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3189 vf->vf_id, data.src_mac); 3190 goto err; 3191 } 3192 } 3193 3194 if (mask.dst_port & data.dst_port) { 3195 if (!data.dst_port) { 3196 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3197 vf->vf_id); 3198 goto err; 3199 } 3200 } 3201 3202 if (mask.src_port & data.src_port) { 3203 if (!data.src_port) { 3204 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3205 vf->vf_id); 3206 goto err; 3207 } 3208 } 3209 3210 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3211 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3212 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3213 vf->vf_id); 3214 goto err; 3215 } 3216 3217 if (mask.vlan_id & data.vlan_id) { 3218 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3219 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3220 vf->vf_id); 3221 goto err; 3222 } 3223 } 3224 3225 return I40E_SUCCESS; 3226 err: 3227 return I40E_ERR_CONFIG; 3228 } 3229 3230 /** 3231 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3232 * @vf: pointer to the VF info 3233 * @seid - seid of the vsi it is searching for 3234 **/ 3235 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3236 { 3237 struct i40e_pf *pf = vf->pf; 3238 struct i40e_vsi *vsi = NULL; 3239 int i; 3240 3241 for (i = 0; i < vf->num_tc ; i++) { 3242 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3243 if (vsi && vsi->seid == seid) 3244 return vsi; 3245 } 3246 return NULL; 3247 } 3248 3249 /** 3250 * i40e_del_all_cloud_filters 3251 * @vf: pointer to the VF info 3252 * 3253 * This function deletes all cloud filters 3254 **/ 3255 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3256 { 3257 struct i40e_cloud_filter *cfilter = NULL; 3258 struct i40e_pf *pf = vf->pf; 3259 struct i40e_vsi *vsi = NULL; 3260 struct hlist_node *node; 3261 int ret; 3262 3263 hlist_for_each_entry_safe(cfilter, node, 3264 &vf->cloud_filter_list, cloud_node) { 3265 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3266 3267 if (!vsi) { 3268 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3269 vf->vf_id, cfilter->seid); 3270 continue; 3271 } 3272 3273 if (cfilter->dst_port) 3274 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3275 false); 3276 else 3277 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3278 if (ret) 3279 dev_err(&pf->pdev->dev, 3280 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3281 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3282 i40e_aq_str(&pf->hw, 3283 pf->hw.aq.asq_last_status)); 3284 3285 hlist_del(&cfilter->cloud_node); 3286 kfree(cfilter); 3287 vf->num_cloud_filters--; 3288 } 3289 } 3290 3291 /** 3292 * i40e_vc_del_cloud_filter 3293 * @vf: pointer to the VF info 3294 * @msg: pointer to the msg buffer 3295 * 3296 * This function deletes a cloud filter programmed as TC filter for ADq 3297 **/ 3298 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3299 { 3300 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3301 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3302 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3303 struct i40e_cloud_filter cfilter, *cf = NULL; 3304 struct i40e_pf *pf = vf->pf; 3305 struct i40e_vsi *vsi = NULL; 3306 struct hlist_node *node; 3307 i40e_status aq_ret = 0; 3308 int i, ret; 3309 3310 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3311 aq_ret = I40E_ERR_PARAM; 3312 goto err; 3313 } 3314 3315 if (!vf->adq_enabled) { 3316 dev_info(&pf->pdev->dev, 3317 "VF %d: ADq not enabled, can't apply cloud filter\n", 3318 vf->vf_id); 3319 aq_ret = I40E_ERR_PARAM; 3320 goto err; 3321 } 3322 3323 if (i40e_validate_cloud_filter(vf, vcf)) { 3324 dev_info(&pf->pdev->dev, 3325 "VF %d: Invalid input, can't apply cloud filter\n", 3326 vf->vf_id); 3327 aq_ret = I40E_ERR_PARAM; 3328 goto err; 3329 } 3330 3331 memset(&cfilter, 0, sizeof(cfilter)); 3332 /* parse destination mac address */ 3333 for (i = 0; i < ETH_ALEN; i++) 3334 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3335 3336 /* parse source mac address */ 3337 for (i = 0; i < ETH_ALEN; i++) 3338 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3339 3340 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3341 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3342 cfilter.src_port = mask.src_port & tcf.src_port; 3343 3344 switch (vcf->flow_type) { 3345 case VIRTCHNL_TCP_V4_FLOW: 3346 cfilter.n_proto = ETH_P_IP; 3347 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3348 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3349 ARRAY_SIZE(tcf.dst_ip)); 3350 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3351 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3352 ARRAY_SIZE(tcf.dst_ip)); 3353 break; 3354 case VIRTCHNL_TCP_V6_FLOW: 3355 cfilter.n_proto = ETH_P_IPV6; 3356 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3357 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3358 sizeof(cfilter.ip.v6.dst_ip6)); 3359 if (mask.src_ip[3] & tcf.src_ip[3]) 3360 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3361 sizeof(cfilter.ip.v6.src_ip6)); 3362 break; 3363 default: 3364 /* TC filter can be configured based on different combinations 3365 * and in this case IP is not a part of filter config 3366 */ 3367 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3368 vf->vf_id); 3369 } 3370 3371 /* get the vsi to which the tc belongs to */ 3372 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3373 cfilter.seid = vsi->seid; 3374 cfilter.flags = vcf->field_flags; 3375 3376 /* Deleting TC filter */ 3377 if (tcf.dst_port) 3378 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3379 else 3380 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3381 if (ret) { 3382 dev_err(&pf->pdev->dev, 3383 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3384 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3385 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3386 goto err; 3387 } 3388 3389 hlist_for_each_entry_safe(cf, node, 3390 &vf->cloud_filter_list, cloud_node) { 3391 if (cf->seid != cfilter.seid) 3392 continue; 3393 if (mask.dst_port) 3394 if (cfilter.dst_port != cf->dst_port) 3395 continue; 3396 if (mask.dst_mac[0]) 3397 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3398 continue; 3399 /* for ipv4 data to be valid, only first byte of mask is set */ 3400 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3401 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3402 ARRAY_SIZE(tcf.dst_ip))) 3403 continue; 3404 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3405 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3406 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3407 sizeof(cfilter.ip.v6.src_ip6))) 3408 continue; 3409 if (mask.vlan_id) 3410 if (cfilter.vlan_id != cf->vlan_id) 3411 continue; 3412 3413 hlist_del(&cf->cloud_node); 3414 kfree(cf); 3415 vf->num_cloud_filters--; 3416 } 3417 3418 err: 3419 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3420 aq_ret); 3421 } 3422 3423 /** 3424 * i40e_vc_add_cloud_filter 3425 * @vf: pointer to the VF info 3426 * @msg: pointer to the msg buffer 3427 * 3428 * This function adds a cloud filter programmed as TC filter for ADq 3429 **/ 3430 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3431 { 3432 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3433 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3434 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3435 struct i40e_cloud_filter *cfilter = NULL; 3436 struct i40e_pf *pf = vf->pf; 3437 struct i40e_vsi *vsi = NULL; 3438 i40e_status aq_ret = 0; 3439 int i, ret; 3440 3441 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3442 aq_ret = I40E_ERR_PARAM; 3443 goto err_out; 3444 } 3445 3446 if (!vf->adq_enabled) { 3447 dev_info(&pf->pdev->dev, 3448 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3449 vf->vf_id); 3450 aq_ret = I40E_ERR_PARAM; 3451 goto err_out; 3452 } 3453 3454 if (i40e_validate_cloud_filter(vf, vcf)) { 3455 dev_info(&pf->pdev->dev, 3456 "VF %d: Invalid input/s, can't apply cloud filter\n", 3457 vf->vf_id); 3458 aq_ret = I40E_ERR_PARAM; 3459 goto err_out; 3460 } 3461 3462 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3463 if (!cfilter) 3464 return -ENOMEM; 3465 3466 /* parse destination mac address */ 3467 for (i = 0; i < ETH_ALEN; i++) 3468 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3469 3470 /* parse source mac address */ 3471 for (i = 0; i < ETH_ALEN; i++) 3472 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3473 3474 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3475 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3476 cfilter->src_port = mask.src_port & tcf.src_port; 3477 3478 switch (vcf->flow_type) { 3479 case VIRTCHNL_TCP_V4_FLOW: 3480 cfilter->n_proto = ETH_P_IP; 3481 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3482 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3483 ARRAY_SIZE(tcf.dst_ip)); 3484 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3485 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3486 ARRAY_SIZE(tcf.dst_ip)); 3487 break; 3488 case VIRTCHNL_TCP_V6_FLOW: 3489 cfilter->n_proto = ETH_P_IPV6; 3490 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3491 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3492 sizeof(cfilter->ip.v6.dst_ip6)); 3493 if (mask.src_ip[3] & tcf.src_ip[3]) 3494 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3495 sizeof(cfilter->ip.v6.src_ip6)); 3496 break; 3497 default: 3498 /* TC filter can be configured based on different combinations 3499 * and in this case IP is not a part of filter config 3500 */ 3501 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3502 vf->vf_id); 3503 } 3504 3505 /* get the VSI to which the TC belongs to */ 3506 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3507 cfilter->seid = vsi->seid; 3508 cfilter->flags = vcf->field_flags; 3509 3510 /* Adding cloud filter programmed as TC filter */ 3511 if (tcf.dst_port) 3512 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3513 else 3514 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3515 if (ret) { 3516 dev_err(&pf->pdev->dev, 3517 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3518 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3519 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3520 goto err_free; 3521 } 3522 3523 INIT_HLIST_NODE(&cfilter->cloud_node); 3524 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3525 /* release the pointer passing it to the collection */ 3526 cfilter = NULL; 3527 vf->num_cloud_filters++; 3528 err_free: 3529 kfree(cfilter); 3530 err_out: 3531 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3532 aq_ret); 3533 } 3534 3535 /** 3536 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3537 * @vf: pointer to the VF info 3538 * @msg: pointer to the msg buffer 3539 **/ 3540 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3541 { 3542 struct virtchnl_tc_info *tci = 3543 (struct virtchnl_tc_info *)msg; 3544 struct i40e_pf *pf = vf->pf; 3545 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3546 int i, adq_request_qps = 0; 3547 i40e_status aq_ret = 0; 3548 u64 speed = 0; 3549 3550 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3551 aq_ret = I40E_ERR_PARAM; 3552 goto err; 3553 } 3554 3555 /* ADq cannot be applied if spoof check is ON */ 3556 if (vf->spoofchk) { 3557 dev_err(&pf->pdev->dev, 3558 "Spoof check is ON, turn it OFF to enable ADq\n"); 3559 aq_ret = I40E_ERR_PARAM; 3560 goto err; 3561 } 3562 3563 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3564 dev_err(&pf->pdev->dev, 3565 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3566 vf->vf_id); 3567 aq_ret = I40E_ERR_PARAM; 3568 goto err; 3569 } 3570 3571 /* max number of traffic classes for VF currently capped at 4 */ 3572 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3573 dev_err(&pf->pdev->dev, 3574 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3575 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3576 aq_ret = I40E_ERR_PARAM; 3577 goto err; 3578 } 3579 3580 /* validate queues for each TC */ 3581 for (i = 0; i < tci->num_tc; i++) 3582 if (!tci->list[i].count || 3583 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3584 dev_err(&pf->pdev->dev, 3585 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3586 vf->vf_id, i, tci->list[i].count, 3587 I40E_DEFAULT_QUEUES_PER_VF); 3588 aq_ret = I40E_ERR_PARAM; 3589 goto err; 3590 } 3591 3592 /* need Max VF queues but already have default number of queues */ 3593 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3594 3595 if (pf->queues_left < adq_request_qps) { 3596 dev_err(&pf->pdev->dev, 3597 "No queues left to allocate to VF %d\n", 3598 vf->vf_id); 3599 aq_ret = I40E_ERR_PARAM; 3600 goto err; 3601 } else { 3602 /* we need to allocate max VF queues to enable ADq so as to 3603 * make sure ADq enabled VF always gets back queues when it 3604 * goes through a reset. 3605 */ 3606 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3607 } 3608 3609 /* get link speed in MB to validate rate limit */ 3610 switch (ls->link_speed) { 3611 case VIRTCHNL_LINK_SPEED_100MB: 3612 speed = SPEED_100; 3613 break; 3614 case VIRTCHNL_LINK_SPEED_1GB: 3615 speed = SPEED_1000; 3616 break; 3617 case VIRTCHNL_LINK_SPEED_10GB: 3618 speed = SPEED_10000; 3619 break; 3620 case VIRTCHNL_LINK_SPEED_20GB: 3621 speed = SPEED_20000; 3622 break; 3623 case VIRTCHNL_LINK_SPEED_25GB: 3624 speed = SPEED_25000; 3625 break; 3626 case VIRTCHNL_LINK_SPEED_40GB: 3627 speed = SPEED_40000; 3628 break; 3629 default: 3630 dev_err(&pf->pdev->dev, 3631 "Cannot detect link speed\n"); 3632 aq_ret = I40E_ERR_PARAM; 3633 goto err; 3634 } 3635 3636 /* parse data from the queue channel info */ 3637 vf->num_tc = tci->num_tc; 3638 for (i = 0; i < vf->num_tc; i++) { 3639 if (tci->list[i].max_tx_rate) { 3640 if (tci->list[i].max_tx_rate > speed) { 3641 dev_err(&pf->pdev->dev, 3642 "Invalid max tx rate %llu specified for VF %d.", 3643 tci->list[i].max_tx_rate, 3644 vf->vf_id); 3645 aq_ret = I40E_ERR_PARAM; 3646 goto err; 3647 } else { 3648 vf->ch[i].max_tx_rate = 3649 tci->list[i].max_tx_rate; 3650 } 3651 } 3652 vf->ch[i].num_qps = tci->list[i].count; 3653 } 3654 3655 /* set this flag only after making sure all inputs are sane */ 3656 vf->adq_enabled = true; 3657 /* num_req_queues is set when user changes number of queues via ethtool 3658 * and this causes issue for default VSI(which depends on this variable) 3659 * when ADq is enabled, hence reset it. 3660 */ 3661 vf->num_req_queues = 0; 3662 3663 /* reset the VF in order to allocate resources */ 3664 i40e_vc_notify_vf_reset(vf); 3665 i40e_reset_vf(vf, false); 3666 3667 return I40E_SUCCESS; 3668 3669 /* send the response to the VF */ 3670 err: 3671 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3672 aq_ret); 3673 } 3674 3675 /** 3676 * i40e_vc_del_qch_msg 3677 * @vf: pointer to the VF info 3678 * @msg: pointer to the msg buffer 3679 **/ 3680 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3681 { 3682 struct i40e_pf *pf = vf->pf; 3683 i40e_status aq_ret = 0; 3684 3685 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3686 aq_ret = I40E_ERR_PARAM; 3687 goto err; 3688 } 3689 3690 if (vf->adq_enabled) { 3691 i40e_del_all_cloud_filters(vf); 3692 i40e_del_qch(vf); 3693 vf->adq_enabled = false; 3694 vf->num_tc = 0; 3695 dev_info(&pf->pdev->dev, 3696 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 3697 vf->vf_id); 3698 } else { 3699 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 3700 vf->vf_id); 3701 aq_ret = I40E_ERR_PARAM; 3702 } 3703 3704 /* reset the VF in order to allocate resources */ 3705 i40e_vc_notify_vf_reset(vf); 3706 i40e_reset_vf(vf, false); 3707 3708 return I40E_SUCCESS; 3709 3710 err: 3711 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 3712 aq_ret); 3713 } 3714 3715 /** 3716 * i40e_vc_process_vf_msg 3717 * @pf: pointer to the PF structure 3718 * @vf_id: source VF id 3719 * @v_opcode: operation code 3720 * @v_retval: unused return value code 3721 * @msg: pointer to the msg buffer 3722 * @msglen: msg length 3723 * 3724 * called from the common aeq/arq handler to 3725 * process request from VF 3726 **/ 3727 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 3728 u32 __always_unused v_retval, u8 *msg, u16 msglen) 3729 { 3730 struct i40e_hw *hw = &pf->hw; 3731 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 3732 struct i40e_vf *vf; 3733 int ret; 3734 3735 pf->vf_aq_requests++; 3736 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 3737 return -EINVAL; 3738 vf = &(pf->vf[local_vf_id]); 3739 3740 /* Check if VF is disabled. */ 3741 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 3742 return I40E_ERR_PARAM; 3743 3744 /* perform basic checks on the msg */ 3745 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 3746 3747 if (ret) { 3748 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 3749 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 3750 local_vf_id, v_opcode, msglen); 3751 switch (ret) { 3752 case VIRTCHNL_STATUS_ERR_PARAM: 3753 return -EPERM; 3754 default: 3755 return -EINVAL; 3756 } 3757 } 3758 3759 switch (v_opcode) { 3760 case VIRTCHNL_OP_VERSION: 3761 ret = i40e_vc_get_version_msg(vf, msg); 3762 break; 3763 case VIRTCHNL_OP_GET_VF_RESOURCES: 3764 ret = i40e_vc_get_vf_resources_msg(vf, msg); 3765 i40e_vc_notify_vf_link_state(vf); 3766 break; 3767 case VIRTCHNL_OP_RESET_VF: 3768 i40e_vc_reset_vf_msg(vf); 3769 ret = 0; 3770 break; 3771 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 3772 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 3773 break; 3774 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 3775 ret = i40e_vc_config_queues_msg(vf, msg); 3776 break; 3777 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 3778 ret = i40e_vc_config_irq_map_msg(vf, msg); 3779 break; 3780 case VIRTCHNL_OP_ENABLE_QUEUES: 3781 ret = i40e_vc_enable_queues_msg(vf, msg); 3782 i40e_vc_notify_vf_link_state(vf); 3783 break; 3784 case VIRTCHNL_OP_DISABLE_QUEUES: 3785 ret = i40e_vc_disable_queues_msg(vf, msg); 3786 break; 3787 case VIRTCHNL_OP_ADD_ETH_ADDR: 3788 ret = i40e_vc_add_mac_addr_msg(vf, msg); 3789 break; 3790 case VIRTCHNL_OP_DEL_ETH_ADDR: 3791 ret = i40e_vc_del_mac_addr_msg(vf, msg); 3792 break; 3793 case VIRTCHNL_OP_ADD_VLAN: 3794 ret = i40e_vc_add_vlan_msg(vf, msg); 3795 break; 3796 case VIRTCHNL_OP_DEL_VLAN: 3797 ret = i40e_vc_remove_vlan_msg(vf, msg); 3798 break; 3799 case VIRTCHNL_OP_GET_STATS: 3800 ret = i40e_vc_get_stats_msg(vf, msg); 3801 break; 3802 case VIRTCHNL_OP_IWARP: 3803 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 3804 break; 3805 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 3806 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 3807 break; 3808 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 3809 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 3810 break; 3811 case VIRTCHNL_OP_CONFIG_RSS_KEY: 3812 ret = i40e_vc_config_rss_key(vf, msg); 3813 break; 3814 case VIRTCHNL_OP_CONFIG_RSS_LUT: 3815 ret = i40e_vc_config_rss_lut(vf, msg); 3816 break; 3817 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 3818 ret = i40e_vc_get_rss_hena(vf, msg); 3819 break; 3820 case VIRTCHNL_OP_SET_RSS_HENA: 3821 ret = i40e_vc_set_rss_hena(vf, msg); 3822 break; 3823 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 3824 ret = i40e_vc_enable_vlan_stripping(vf, msg); 3825 break; 3826 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 3827 ret = i40e_vc_disable_vlan_stripping(vf, msg); 3828 break; 3829 case VIRTCHNL_OP_REQUEST_QUEUES: 3830 ret = i40e_vc_request_queues_msg(vf, msg); 3831 break; 3832 case VIRTCHNL_OP_ENABLE_CHANNELS: 3833 ret = i40e_vc_add_qch_msg(vf, msg); 3834 break; 3835 case VIRTCHNL_OP_DISABLE_CHANNELS: 3836 ret = i40e_vc_del_qch_msg(vf, msg); 3837 break; 3838 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 3839 ret = i40e_vc_add_cloud_filter(vf, msg); 3840 break; 3841 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 3842 ret = i40e_vc_del_cloud_filter(vf, msg); 3843 break; 3844 case VIRTCHNL_OP_UNKNOWN: 3845 default: 3846 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 3847 v_opcode, local_vf_id); 3848 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 3849 I40E_ERR_NOT_IMPLEMENTED); 3850 break; 3851 } 3852 3853 return ret; 3854 } 3855 3856 /** 3857 * i40e_vc_process_vflr_event 3858 * @pf: pointer to the PF structure 3859 * 3860 * called from the vlfr irq handler to 3861 * free up VF resources and state variables 3862 **/ 3863 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 3864 { 3865 struct i40e_hw *hw = &pf->hw; 3866 u32 reg, reg_idx, bit_idx; 3867 struct i40e_vf *vf; 3868 int vf_id; 3869 3870 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 3871 return 0; 3872 3873 /* Re-enable the VFLR interrupt cause here, before looking for which 3874 * VF got reset. Otherwise, if another VF gets a reset while the 3875 * first one is being processed, that interrupt will be lost, and 3876 * that VF will be stuck in reset forever. 3877 */ 3878 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 3879 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 3880 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 3881 i40e_flush(hw); 3882 3883 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 3884 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 3885 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 3886 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 3887 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 3888 vf = &pf->vf[vf_id]; 3889 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 3890 if (reg & BIT(bit_idx)) 3891 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 3892 i40e_reset_vf(vf, true); 3893 } 3894 3895 return 0; 3896 } 3897 3898 /** 3899 * i40e_validate_vf 3900 * @pf: the physical function 3901 * @vf_id: VF identifier 3902 * 3903 * Check that the VF is enabled and the VSI exists. 3904 * 3905 * Returns 0 on success, negative on failure 3906 **/ 3907 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 3908 { 3909 struct i40e_vsi *vsi; 3910 struct i40e_vf *vf; 3911 int ret = 0; 3912 3913 if (vf_id >= pf->num_alloc_vfs) { 3914 dev_err(&pf->pdev->dev, 3915 "Invalid VF Identifier %d\n", vf_id); 3916 ret = -EINVAL; 3917 goto err_out; 3918 } 3919 vf = &pf->vf[vf_id]; 3920 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 3921 if (!vsi) 3922 ret = -EINVAL; 3923 err_out: 3924 return ret; 3925 } 3926 3927 /** 3928 * i40e_ndo_set_vf_mac 3929 * @netdev: network interface device structure 3930 * @vf_id: VF identifier 3931 * @mac: mac address 3932 * 3933 * program VF mac address 3934 **/ 3935 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 3936 { 3937 struct i40e_netdev_priv *np = netdev_priv(netdev); 3938 struct i40e_vsi *vsi = np->vsi; 3939 struct i40e_pf *pf = vsi->back; 3940 struct i40e_mac_filter *f; 3941 struct i40e_vf *vf; 3942 int ret = 0; 3943 struct hlist_node *h; 3944 int bkt; 3945 u8 i; 3946 3947 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 3948 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 3949 return -EAGAIN; 3950 } 3951 3952 /* validate the request */ 3953 ret = i40e_validate_vf(pf, vf_id); 3954 if (ret) 3955 goto error_param; 3956 3957 vf = &pf->vf[vf_id]; 3958 vsi = pf->vsi[vf->lan_vsi_idx]; 3959 3960 /* When the VF is resetting wait until it is done. 3961 * It can take up to 200 milliseconds, 3962 * but wait for up to 300 milliseconds to be safe. 3963 * If the VF is indeed in reset, the vsi pointer has 3964 * to show on the newly loaded vsi under pf->vsi[id]. 3965 */ 3966 for (i = 0; i < 15; i++) { 3967 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 3968 if (i > 0) 3969 vsi = pf->vsi[vf->lan_vsi_idx]; 3970 break; 3971 } 3972 msleep(20); 3973 } 3974 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 3975 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3976 vf_id); 3977 ret = -EAGAIN; 3978 goto error_param; 3979 } 3980 3981 if (is_multicast_ether_addr(mac)) { 3982 dev_err(&pf->pdev->dev, 3983 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 3984 ret = -EINVAL; 3985 goto error_param; 3986 } 3987 3988 /* Lock once because below invoked function add/del_filter requires 3989 * mac_filter_hash_lock to be held 3990 */ 3991 spin_lock_bh(&vsi->mac_filter_hash_lock); 3992 3993 /* delete the temporary mac address */ 3994 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 3995 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 3996 3997 /* Delete all the filters for this VSI - we're going to kill it 3998 * anyway. 3999 */ 4000 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4001 __i40e_del_filter(vsi, f); 4002 4003 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4004 4005 /* program mac filter */ 4006 if (i40e_sync_vsi_filters(vsi)) { 4007 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4008 ret = -EIO; 4009 goto error_param; 4010 } 4011 ether_addr_copy(vf->default_lan_addr.addr, mac); 4012 4013 if (is_zero_ether_addr(mac)) { 4014 vf->pf_set_mac = false; 4015 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4016 } else { 4017 vf->pf_set_mac = true; 4018 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4019 mac, vf_id); 4020 } 4021 4022 /* Force the VF interface down so it has to bring up with new MAC 4023 * address 4024 */ 4025 i40e_vc_disable_vf(vf); 4026 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4027 4028 error_param: 4029 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4030 return ret; 4031 } 4032 4033 /** 4034 * i40e_vsi_has_vlans - True if VSI has configured VLANs 4035 * @vsi: pointer to the vsi 4036 * 4037 * Check if a VSI has configured any VLANs. False if we have a port VLAN or if 4038 * we have no configured VLANs. Do not call while holding the 4039 * mac_filter_hash_lock. 4040 */ 4041 static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi) 4042 { 4043 bool have_vlans; 4044 4045 /* If we have a port VLAN, then the VSI cannot have any VLANs 4046 * configured, as all MAC/VLAN filters will be assigned to the PVID. 4047 */ 4048 if (vsi->info.pvid) 4049 return false; 4050 4051 /* Since we don't have a PVID, we know that if the device is in VLAN 4052 * mode it must be because of a VLAN filter configured on this VSI. 4053 */ 4054 spin_lock_bh(&vsi->mac_filter_hash_lock); 4055 have_vlans = i40e_is_vsi_in_vlan(vsi); 4056 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4057 4058 return have_vlans; 4059 } 4060 4061 /** 4062 * i40e_ndo_set_vf_port_vlan 4063 * @netdev: network interface device structure 4064 * @vf_id: VF identifier 4065 * @vlan_id: mac address 4066 * @qos: priority setting 4067 * @vlan_proto: vlan protocol 4068 * 4069 * program VF vlan id and/or qos 4070 **/ 4071 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4072 u16 vlan_id, u8 qos, __be16 vlan_proto) 4073 { 4074 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4075 struct i40e_netdev_priv *np = netdev_priv(netdev); 4076 bool allmulti = false, alluni = false; 4077 struct i40e_pf *pf = np->vsi->back; 4078 struct i40e_vsi *vsi; 4079 struct i40e_vf *vf; 4080 int ret = 0; 4081 4082 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4083 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4084 return -EAGAIN; 4085 } 4086 4087 /* validate the request */ 4088 ret = i40e_validate_vf(pf, vf_id); 4089 if (ret) 4090 goto error_pvid; 4091 4092 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4093 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4094 ret = -EINVAL; 4095 goto error_pvid; 4096 } 4097 4098 if (vlan_proto != htons(ETH_P_8021Q)) { 4099 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4100 ret = -EPROTONOSUPPORT; 4101 goto error_pvid; 4102 } 4103 4104 vf = &pf->vf[vf_id]; 4105 vsi = pf->vsi[vf->lan_vsi_idx]; 4106 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4107 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4108 vf_id); 4109 ret = -EAGAIN; 4110 goto error_pvid; 4111 } 4112 4113 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4114 /* duplicate request, so just return success */ 4115 goto error_pvid; 4116 4117 if (i40e_vsi_has_vlans(vsi)) { 4118 dev_err(&pf->pdev->dev, 4119 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n", 4120 vf_id); 4121 /* Administrator Error - knock the VF offline until he does 4122 * the right thing by reconfiguring his network correctly 4123 * and then reloading the VF driver. 4124 */ 4125 i40e_vc_disable_vf(vf); 4126 /* During reset the VF got a new VSI, so refresh the pointer. */ 4127 vsi = pf->vsi[vf->lan_vsi_idx]; 4128 } 4129 4130 /* Locked once because multiple functions below iterate list */ 4131 spin_lock_bh(&vsi->mac_filter_hash_lock); 4132 4133 /* Check for condition where there was already a port VLAN ID 4134 * filter set and now it is being deleted by setting it to zero. 4135 * Additionally check for the condition where there was a port 4136 * VLAN but now there is a new and different port VLAN being set. 4137 * Before deleting all the old VLAN filters we must add new ones 4138 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4139 * MAC addresses deleted. 4140 */ 4141 if ((!(vlan_id || qos) || 4142 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4143 vsi->info.pvid) { 4144 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4145 if (ret) { 4146 dev_info(&vsi->back->pdev->dev, 4147 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4148 vsi->back->hw.aq.asq_last_status); 4149 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4150 goto error_pvid; 4151 } 4152 } 4153 4154 if (vsi->info.pvid) { 4155 /* remove all filters on the old VLAN */ 4156 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4157 VLAN_VID_MASK)); 4158 } 4159 4160 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4161 4162 /* disable promisc modes in case they were enabled */ 4163 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4164 allmulti, alluni); 4165 if (ret) { 4166 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4167 goto error_pvid; 4168 } 4169 4170 if (vlan_id || qos) 4171 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4172 else 4173 i40e_vsi_remove_pvid(vsi); 4174 spin_lock_bh(&vsi->mac_filter_hash_lock); 4175 4176 if (vlan_id) { 4177 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4178 vlan_id, qos, vf_id); 4179 4180 /* add new VLAN filter for each MAC */ 4181 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4182 if (ret) { 4183 dev_info(&vsi->back->pdev->dev, 4184 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4185 vsi->back->hw.aq.asq_last_status); 4186 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4187 goto error_pvid; 4188 } 4189 4190 /* remove the previously added non-VLAN MAC filters */ 4191 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4192 } 4193 4194 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4195 4196 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4197 alluni = true; 4198 4199 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4200 allmulti = true; 4201 4202 /* Schedule the worker thread to take care of applying changes */ 4203 i40e_service_event_schedule(vsi->back); 4204 4205 if (ret) { 4206 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4207 goto error_pvid; 4208 } 4209 4210 /* The Port VLAN needs to be saved across resets the same as the 4211 * default LAN MAC address. 4212 */ 4213 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4214 4215 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4216 if (ret) { 4217 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4218 goto error_pvid; 4219 } 4220 4221 ret = 0; 4222 4223 error_pvid: 4224 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4225 return ret; 4226 } 4227 4228 /** 4229 * i40e_ndo_set_vf_bw 4230 * @netdev: network interface device structure 4231 * @vf_id: VF identifier 4232 * @min_tx_rate: Minimum Tx rate 4233 * @max_tx_rate: Maximum Tx rate 4234 * 4235 * configure VF Tx rate 4236 **/ 4237 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4238 int max_tx_rate) 4239 { 4240 struct i40e_netdev_priv *np = netdev_priv(netdev); 4241 struct i40e_pf *pf = np->vsi->back; 4242 struct i40e_vsi *vsi; 4243 struct i40e_vf *vf; 4244 int ret = 0; 4245 4246 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4247 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4248 return -EAGAIN; 4249 } 4250 4251 /* validate the request */ 4252 ret = i40e_validate_vf(pf, vf_id); 4253 if (ret) 4254 goto error; 4255 4256 if (min_tx_rate) { 4257 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4258 min_tx_rate, vf_id); 4259 ret = -EINVAL; 4260 goto error; 4261 } 4262 4263 vf = &pf->vf[vf_id]; 4264 vsi = pf->vsi[vf->lan_vsi_idx]; 4265 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4266 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4267 vf_id); 4268 ret = -EAGAIN; 4269 goto error; 4270 } 4271 4272 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4273 if (ret) 4274 goto error; 4275 4276 vf->tx_rate = max_tx_rate; 4277 error: 4278 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4279 return ret; 4280 } 4281 4282 /** 4283 * i40e_ndo_get_vf_config 4284 * @netdev: network interface device structure 4285 * @vf_id: VF identifier 4286 * @ivi: VF configuration structure 4287 * 4288 * return VF configuration 4289 **/ 4290 int i40e_ndo_get_vf_config(struct net_device *netdev, 4291 int vf_id, struct ifla_vf_info *ivi) 4292 { 4293 struct i40e_netdev_priv *np = netdev_priv(netdev); 4294 struct i40e_vsi *vsi = np->vsi; 4295 struct i40e_pf *pf = vsi->back; 4296 struct i40e_vf *vf; 4297 int ret = 0; 4298 4299 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4300 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4301 return -EAGAIN; 4302 } 4303 4304 /* validate the request */ 4305 ret = i40e_validate_vf(pf, vf_id); 4306 if (ret) 4307 goto error_param; 4308 4309 vf = &pf->vf[vf_id]; 4310 /* first vsi is always the LAN vsi */ 4311 vsi = pf->vsi[vf->lan_vsi_idx]; 4312 if (!vsi) { 4313 ret = -ENOENT; 4314 goto error_param; 4315 } 4316 4317 ivi->vf = vf_id; 4318 4319 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4320 4321 ivi->max_tx_rate = vf->tx_rate; 4322 ivi->min_tx_rate = 0; 4323 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4324 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4325 I40E_VLAN_PRIORITY_SHIFT; 4326 if (vf->link_forced == false) 4327 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4328 else if (vf->link_up == true) 4329 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4330 else 4331 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4332 ivi->spoofchk = vf->spoofchk; 4333 ivi->trusted = vf->trusted; 4334 ret = 0; 4335 4336 error_param: 4337 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4338 return ret; 4339 } 4340 4341 /** 4342 * i40e_ndo_set_vf_link_state 4343 * @netdev: network interface device structure 4344 * @vf_id: VF identifier 4345 * @link: required link state 4346 * 4347 * Set the link state of a specified VF, regardless of physical link state 4348 **/ 4349 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4350 { 4351 struct i40e_netdev_priv *np = netdev_priv(netdev); 4352 struct i40e_pf *pf = np->vsi->back; 4353 struct virtchnl_pf_event pfe; 4354 struct i40e_hw *hw = &pf->hw; 4355 struct i40e_vf *vf; 4356 int abs_vf_id; 4357 int ret = 0; 4358 4359 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4360 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4361 return -EAGAIN; 4362 } 4363 4364 /* validate the request */ 4365 if (vf_id >= pf->num_alloc_vfs) { 4366 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4367 ret = -EINVAL; 4368 goto error_out; 4369 } 4370 4371 vf = &pf->vf[vf_id]; 4372 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4373 4374 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4375 pfe.severity = PF_EVENT_SEVERITY_INFO; 4376 4377 switch (link) { 4378 case IFLA_VF_LINK_STATE_AUTO: 4379 vf->link_forced = false; 4380 pfe.event_data.link_event.link_status = 4381 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 4382 pfe.event_data.link_event.link_speed = 4383 (enum virtchnl_link_speed) 4384 pf->hw.phy.link_info.link_speed; 4385 break; 4386 case IFLA_VF_LINK_STATE_ENABLE: 4387 vf->link_forced = true; 4388 vf->link_up = true; 4389 pfe.event_data.link_event.link_status = true; 4390 pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB; 4391 break; 4392 case IFLA_VF_LINK_STATE_DISABLE: 4393 vf->link_forced = true; 4394 vf->link_up = false; 4395 pfe.event_data.link_event.link_status = false; 4396 pfe.event_data.link_event.link_speed = 0; 4397 break; 4398 default: 4399 ret = -EINVAL; 4400 goto error_out; 4401 } 4402 /* Notify the VF of its new link state */ 4403 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4404 0, (u8 *)&pfe, sizeof(pfe), NULL); 4405 4406 error_out: 4407 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4408 return ret; 4409 } 4410 4411 /** 4412 * i40e_ndo_set_vf_spoofchk 4413 * @netdev: network interface device structure 4414 * @vf_id: VF identifier 4415 * @enable: flag to enable or disable feature 4416 * 4417 * Enable or disable VF spoof checking 4418 **/ 4419 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4420 { 4421 struct i40e_netdev_priv *np = netdev_priv(netdev); 4422 struct i40e_vsi *vsi = np->vsi; 4423 struct i40e_pf *pf = vsi->back; 4424 struct i40e_vsi_context ctxt; 4425 struct i40e_hw *hw = &pf->hw; 4426 struct i40e_vf *vf; 4427 int ret = 0; 4428 4429 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4430 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4431 return -EAGAIN; 4432 } 4433 4434 /* validate the request */ 4435 if (vf_id >= pf->num_alloc_vfs) { 4436 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4437 ret = -EINVAL; 4438 goto out; 4439 } 4440 4441 vf = &(pf->vf[vf_id]); 4442 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4443 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4444 vf_id); 4445 ret = -EAGAIN; 4446 goto out; 4447 } 4448 4449 if (enable == vf->spoofchk) 4450 goto out; 4451 4452 vf->spoofchk = enable; 4453 memset(&ctxt, 0, sizeof(ctxt)); 4454 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4455 ctxt.pf_num = pf->hw.pf_id; 4456 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4457 if (enable) 4458 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4459 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4460 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4461 if (ret) { 4462 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4463 ret); 4464 ret = -EIO; 4465 } 4466 out: 4467 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4468 return ret; 4469 } 4470 4471 /** 4472 * i40e_ndo_set_vf_trust 4473 * @netdev: network interface device structure of the pf 4474 * @vf_id: VF identifier 4475 * @setting: trust setting 4476 * 4477 * Enable or disable VF trust setting 4478 **/ 4479 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4480 { 4481 struct i40e_netdev_priv *np = netdev_priv(netdev); 4482 struct i40e_pf *pf = np->vsi->back; 4483 struct i40e_vf *vf; 4484 int ret = 0; 4485 4486 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4487 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4488 return -EAGAIN; 4489 } 4490 4491 /* validate the request */ 4492 if (vf_id >= pf->num_alloc_vfs) { 4493 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4494 ret = -EINVAL; 4495 goto out; 4496 } 4497 4498 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4499 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4500 ret = -EINVAL; 4501 goto out; 4502 } 4503 4504 vf = &pf->vf[vf_id]; 4505 4506 if (setting == vf->trusted) 4507 goto out; 4508 4509 vf->trusted = setting; 4510 i40e_vc_disable_vf(vf); 4511 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4512 vf_id, setting ? "" : "un"); 4513 4514 if (vf->adq_enabled) { 4515 if (!vf->trusted) { 4516 dev_info(&pf->pdev->dev, 4517 "VF %u no longer Trusted, deleting all cloud filters\n", 4518 vf_id); 4519 i40e_del_all_cloud_filters(vf); 4520 } 4521 } 4522 4523 out: 4524 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4525 return ret; 4526 } 4527 4528 /** 4529 * i40e_get_vf_stats - populate some stats for the VF 4530 * @netdev: the netdev of the PF 4531 * @vf_id: the host OS identifier (0-127) 4532 * @vf_stats: pointer to the OS memory to be initialized 4533 */ 4534 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4535 struct ifla_vf_stats *vf_stats) 4536 { 4537 struct i40e_netdev_priv *np = netdev_priv(netdev); 4538 struct i40e_pf *pf = np->vsi->back; 4539 struct i40e_eth_stats *stats; 4540 struct i40e_vsi *vsi; 4541 struct i40e_vf *vf; 4542 4543 /* validate the request */ 4544 if (i40e_validate_vf(pf, vf_id)) 4545 return -EINVAL; 4546 4547 vf = &pf->vf[vf_id]; 4548 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4549 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4550 return -EBUSY; 4551 } 4552 4553 vsi = pf->vsi[vf->lan_vsi_idx]; 4554 if (!vsi) 4555 return -EINVAL; 4556 4557 i40e_update_eth_stats(vsi); 4558 stats = &vsi->eth_stats; 4559 4560 memset(vf_stats, 0, sizeof(*vf_stats)); 4561 4562 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4563 stats->rx_multicast; 4564 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4565 stats->tx_multicast; 4566 vf_stats->rx_bytes = stats->rx_bytes; 4567 vf_stats->tx_bytes = stats->tx_bytes; 4568 vf_stats->broadcast = stats->rx_broadcast; 4569 vf_stats->multicast = stats->rx_multicast; 4570 vf_stats->rx_dropped = stats->rx_discards; 4571 vf_stats->tx_dropped = stats->tx_discards; 4572 4573 return 0; 4574 } 4575