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 /** 1110 * i40e_getnum_vf_vsi_vlan_filters 1111 * @vsi: pointer to the vsi 1112 * 1113 * called to get the number of VLANs offloaded on this VF 1114 **/ 1115 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1116 { 1117 struct i40e_mac_filter *f; 1118 u16 num_vlans = 0, bkt; 1119 1120 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1121 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1122 num_vlans++; 1123 } 1124 1125 return num_vlans; 1126 } 1127 1128 /** 1129 * i40e_get_vlan_list_sync 1130 * @vsi: pointer to the VSI 1131 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller 1132 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. 1133 * This array is allocated here, but has to be freed in caller. 1134 * 1135 * Called to get number of VLANs and VLAN list present in mac_filter_hash. 1136 **/ 1137 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans, 1138 s16 **vlan_list) 1139 { 1140 struct i40e_mac_filter *f; 1141 int i = 0; 1142 int bkt; 1143 1144 spin_lock_bh(&vsi->mac_filter_hash_lock); 1145 *num_vlans = i40e_getnum_vf_vsi_vlan_filters(vsi); 1146 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); 1147 if (!(*vlan_list)) 1148 goto err; 1149 1150 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1151 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1152 continue; 1153 (*vlan_list)[i++] = f->vlan; 1154 } 1155 err: 1156 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1157 } 1158 1159 /** 1160 * i40e_set_vsi_promisc 1161 * @vf: pointer to the VF struct 1162 * @seid: VSI number 1163 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable 1164 * for a given VLAN 1165 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable 1166 * for a given VLAN 1167 * @vl: List of VLANs - apply filter for given VLANs 1168 * @num_vlans: Number of elements in @vl 1169 **/ 1170 static i40e_status 1171 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, 1172 bool unicast_enable, s16 *vl, u16 num_vlans) 1173 { 1174 i40e_status aq_ret, aq_tmp = 0; 1175 struct i40e_pf *pf = vf->pf; 1176 struct i40e_hw *hw = &pf->hw; 1177 int i; 1178 1179 /* No VLAN to set promisc on, set on VSI */ 1180 if (!num_vlans || !vl) { 1181 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, 1182 multi_enable, 1183 NULL); 1184 if (aq_ret) { 1185 int aq_err = pf->hw.aq.asq_last_status; 1186 1187 dev_err(&pf->pdev->dev, 1188 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1189 vf->vf_id, 1190 i40e_stat_str(&pf->hw, aq_ret), 1191 i40e_aq_str(&pf->hw, aq_err)); 1192 1193 return aq_ret; 1194 } 1195 1196 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, 1197 unicast_enable, 1198 NULL, true); 1199 1200 if (aq_ret) { 1201 int aq_err = pf->hw.aq.asq_last_status; 1202 1203 dev_err(&pf->pdev->dev, 1204 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1205 vf->vf_id, 1206 i40e_stat_str(&pf->hw, aq_ret), 1207 i40e_aq_str(&pf->hw, aq_err)); 1208 } 1209 1210 return aq_ret; 1211 } 1212 1213 for (i = 0; i < num_vlans; i++) { 1214 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, 1215 multi_enable, 1216 vl[i], NULL); 1217 if (aq_ret) { 1218 int aq_err = pf->hw.aq.asq_last_status; 1219 1220 dev_err(&pf->pdev->dev, 1221 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1222 vf->vf_id, 1223 i40e_stat_str(&pf->hw, aq_ret), 1224 i40e_aq_str(&pf->hw, aq_err)); 1225 1226 if (!aq_tmp) 1227 aq_tmp = aq_ret; 1228 } 1229 1230 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, 1231 unicast_enable, 1232 vl[i], NULL); 1233 if (aq_ret) { 1234 int aq_err = pf->hw.aq.asq_last_status; 1235 1236 dev_err(&pf->pdev->dev, 1237 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", 1238 vf->vf_id, 1239 i40e_stat_str(&pf->hw, aq_ret), 1240 i40e_aq_str(&pf->hw, aq_err)); 1241 1242 if (!aq_tmp) 1243 aq_tmp = aq_ret; 1244 } 1245 } 1246 1247 if (aq_tmp) 1248 aq_ret = aq_tmp; 1249 1250 return aq_ret; 1251 } 1252 1253 /** 1254 * i40e_config_vf_promiscuous_mode 1255 * @vf: pointer to the VF info 1256 * @vsi_id: VSI id 1257 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable 1258 * @alluni: set MAC L2 layer unicast promiscuous enable/disable 1259 * 1260 * Called from the VF to configure the promiscuous mode of 1261 * VF vsis and from the VF reset path to reset promiscuous mode. 1262 **/ 1263 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, 1264 u16 vsi_id, 1265 bool allmulti, 1266 bool alluni) 1267 { 1268 i40e_status aq_ret = I40E_SUCCESS; 1269 struct i40e_pf *pf = vf->pf; 1270 struct i40e_vsi *vsi; 1271 u16 num_vlans; 1272 s16 *vl; 1273 1274 vsi = i40e_find_vsi_from_id(pf, vsi_id); 1275 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) 1276 return I40E_ERR_PARAM; 1277 1278 if (vf->port_vlan_id) { 1279 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, 1280 alluni, &vf->port_vlan_id, 1); 1281 return aq_ret; 1282 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1283 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); 1284 1285 if (!vl) 1286 return I40E_ERR_NO_MEMORY; 1287 1288 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1289 vl, num_vlans); 1290 kfree(vl); 1291 return aq_ret; 1292 } 1293 1294 /* no VLANs to set on, set on VSI */ 1295 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, 1296 NULL, 0); 1297 return aq_ret; 1298 } 1299 1300 /** 1301 * i40e_trigger_vf_reset 1302 * @vf: pointer to the VF structure 1303 * @flr: VFLR was issued or not 1304 * 1305 * Trigger hardware to start a reset for a particular VF. Expects the caller 1306 * to wait the proper amount of time to allow hardware to reset the VF before 1307 * it cleans up and restores VF functionality. 1308 **/ 1309 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 1310 { 1311 struct i40e_pf *pf = vf->pf; 1312 struct i40e_hw *hw = &pf->hw; 1313 u32 reg, reg_idx, bit_idx; 1314 1315 /* warn the VF */ 1316 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1317 1318 /* Disable VF's configuration API during reset. The flag is re-enabled 1319 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 1320 * It's normally disabled in i40e_free_vf_res(), but it's safer 1321 * to do it earlier to give some time to finish to any VF config 1322 * functions that may still be running at this point. 1323 */ 1324 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 1325 1326 /* In the case of a VFLR, the HW has already reset the VF and we 1327 * just need to clean up, so don't hit the VFRTRIG register. 1328 */ 1329 if (!flr) { 1330 /* reset VF using VPGEN_VFRTRIG reg */ 1331 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1332 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1333 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1334 i40e_flush(hw); 1335 } 1336 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 1337 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 1338 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 1339 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1340 i40e_flush(hw); 1341 1342 if (i40e_quiesce_vf_pci(vf)) 1343 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 1344 vf->vf_id); 1345 } 1346 1347 /** 1348 * i40e_cleanup_reset_vf 1349 * @vf: pointer to the VF structure 1350 * 1351 * Cleanup a VF after the hardware reset is finished. Expects the caller to 1352 * have verified whether the reset is finished properly, and ensure the 1353 * minimum amount of wait time has passed. 1354 **/ 1355 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 1356 { 1357 struct i40e_pf *pf = vf->pf; 1358 struct i40e_hw *hw = &pf->hw; 1359 u32 reg; 1360 1361 /* disable promisc modes in case they were enabled */ 1362 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); 1363 1364 /* free VF resources to begin resetting the VSI state */ 1365 i40e_free_vf_res(vf); 1366 1367 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 1368 * By doing this we allow HW to access VF memory at any point. If we 1369 * did it any sooner, HW could access memory while it was being freed 1370 * in i40e_free_vf_res(), causing an IOMMU fault. 1371 * 1372 * On the other hand, this needs to be done ASAP, because the VF driver 1373 * is waiting for this to happen and may report a timeout. It's 1374 * harmless, but it gets logged into Guest OS kernel log, so best avoid 1375 * it. 1376 */ 1377 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1378 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1379 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1380 1381 /* reallocate VF resources to finish resetting the VSI state */ 1382 if (!i40e_alloc_vf_res(vf)) { 1383 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1384 i40e_enable_vf_mappings(vf); 1385 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1386 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1387 /* Do not notify the client during VF init */ 1388 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1389 &vf->vf_states)) 1390 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1391 vf->num_vlan = 0; 1392 } 1393 1394 /* Tell the VF driver the reset is done. This needs to be done only 1395 * after VF has been fully initialized, because the VF driver may 1396 * request resources immediately after setting this flag. 1397 */ 1398 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); 1399 } 1400 1401 /** 1402 * i40e_reset_vf 1403 * @vf: pointer to the VF structure 1404 * @flr: VFLR was issued or not 1405 * 1406 * Returns true if the VF is reset, false otherwise. 1407 **/ 1408 bool i40e_reset_vf(struct i40e_vf *vf, bool flr) 1409 { 1410 struct i40e_pf *pf = vf->pf; 1411 struct i40e_hw *hw = &pf->hw; 1412 bool rsd = false; 1413 u32 reg; 1414 int i; 1415 1416 /* If the VFs have been disabled, this means something else is 1417 * resetting the VF, so we shouldn't continue. 1418 */ 1419 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1420 return false; 1421 1422 i40e_trigger_vf_reset(vf, flr); 1423 1424 /* poll VPGEN_VFRSTAT reg to make sure 1425 * that reset is complete 1426 */ 1427 for (i = 0; i < 10; i++) { 1428 /* VF reset requires driver to first reset the VF and then 1429 * poll the status register to make sure that the reset 1430 * completed successfully. Due to internal HW FIFO flushes, 1431 * we must wait 10ms before the register will be valid. 1432 */ 1433 usleep_range(10000, 20000); 1434 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1435 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1436 rsd = true; 1437 break; 1438 } 1439 } 1440 1441 if (flr) 1442 usleep_range(10000, 20000); 1443 1444 if (!rsd) 1445 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1446 vf->vf_id); 1447 usleep_range(10000, 20000); 1448 1449 /* On initial reset, we don't have any queues to disable */ 1450 if (vf->lan_vsi_idx != 0) 1451 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1452 1453 i40e_cleanup_reset_vf(vf); 1454 1455 i40e_flush(hw); 1456 clear_bit(__I40E_VF_DISABLE, pf->state); 1457 1458 return true; 1459 } 1460 1461 /** 1462 * i40e_reset_all_vfs 1463 * @pf: pointer to the PF structure 1464 * @flr: VFLR was issued or not 1465 * 1466 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1467 * VF, then do all the waiting in one chunk, and finally finish restoring each 1468 * VF after the wait. This is useful during PF routines which need to reset 1469 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1470 * 1471 * Returns true if any VFs were reset, and false otherwise. 1472 **/ 1473 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1474 { 1475 struct i40e_hw *hw = &pf->hw; 1476 struct i40e_vf *vf; 1477 int i, v; 1478 u32 reg; 1479 1480 /* If we don't have any VFs, then there is nothing to reset */ 1481 if (!pf->num_alloc_vfs) 1482 return false; 1483 1484 /* If VFs have been disabled, there is no need to reset */ 1485 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1486 return false; 1487 1488 /* Begin reset on all VFs at once */ 1489 for (v = 0; v < pf->num_alloc_vfs; v++) 1490 i40e_trigger_vf_reset(&pf->vf[v], flr); 1491 1492 /* HW requires some time to make sure it can flush the FIFO for a VF 1493 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1494 * sequence to make sure that it has completed. We'll keep track of 1495 * the VFs using a simple iterator that increments once that VF has 1496 * finished resetting. 1497 */ 1498 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1499 usleep_range(10000, 20000); 1500 1501 /* Check each VF in sequence, beginning with the VF to fail 1502 * the previous check. 1503 */ 1504 while (v < pf->num_alloc_vfs) { 1505 vf = &pf->vf[v]; 1506 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1507 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1508 break; 1509 1510 /* If the current VF has finished resetting, move on 1511 * to the next VF in sequence. 1512 */ 1513 v++; 1514 } 1515 } 1516 1517 if (flr) 1518 usleep_range(10000, 20000); 1519 1520 /* Display a warning if at least one VF didn't manage to reset in 1521 * time, but continue on with the operation. 1522 */ 1523 if (v < pf->num_alloc_vfs) 1524 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1525 pf->vf[v].vf_id); 1526 usleep_range(10000, 20000); 1527 1528 /* Begin disabling all the rings associated with VFs, but do not wait 1529 * between each VF. 1530 */ 1531 for (v = 0; v < pf->num_alloc_vfs; v++) { 1532 /* On initial reset, we don't have any queues to disable */ 1533 if (pf->vf[v].lan_vsi_idx == 0) 1534 continue; 1535 1536 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1537 } 1538 1539 /* Now that we've notified HW to disable all of the VF rings, wait 1540 * until they finish. 1541 */ 1542 for (v = 0; v < pf->num_alloc_vfs; v++) { 1543 /* On initial reset, we don't have any queues to disable */ 1544 if (pf->vf[v].lan_vsi_idx == 0) 1545 continue; 1546 1547 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1548 } 1549 1550 /* Hw may need up to 50ms to finish disabling the RX queues. We 1551 * minimize the wait by delaying only once for all VFs. 1552 */ 1553 mdelay(50); 1554 1555 /* Finish the reset on each VF */ 1556 for (v = 0; v < pf->num_alloc_vfs; v++) 1557 i40e_cleanup_reset_vf(&pf->vf[v]); 1558 1559 i40e_flush(hw); 1560 clear_bit(__I40E_VF_DISABLE, pf->state); 1561 1562 return true; 1563 } 1564 1565 /** 1566 * i40e_free_vfs 1567 * @pf: pointer to the PF structure 1568 * 1569 * free VF resources 1570 **/ 1571 void i40e_free_vfs(struct i40e_pf *pf) 1572 { 1573 struct i40e_hw *hw = &pf->hw; 1574 u32 reg_idx, bit_idx; 1575 int i, tmp, vf_id; 1576 1577 if (!pf->vf) 1578 return; 1579 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1580 usleep_range(1000, 2000); 1581 1582 i40e_notify_client_of_vf_enable(pf, 0); 1583 1584 /* Amortize wait time by stopping all VFs at the same time */ 1585 for (i = 0; i < pf->num_alloc_vfs; i++) { 1586 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1587 continue; 1588 1589 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1590 } 1591 1592 for (i = 0; i < pf->num_alloc_vfs; i++) { 1593 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1594 continue; 1595 1596 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1597 } 1598 1599 /* Disable IOV before freeing resources. This lets any VF drivers 1600 * running in the host get themselves cleaned up before we yank 1601 * the carpet out from underneath their feet. 1602 */ 1603 if (!pci_vfs_assigned(pf->pdev)) 1604 pci_disable_sriov(pf->pdev); 1605 else 1606 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1607 1608 /* free up VF resources */ 1609 tmp = pf->num_alloc_vfs; 1610 pf->num_alloc_vfs = 0; 1611 for (i = 0; i < tmp; i++) { 1612 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1613 i40e_free_vf_res(&pf->vf[i]); 1614 /* disable qp mappings */ 1615 i40e_disable_vf_mappings(&pf->vf[i]); 1616 } 1617 1618 kfree(pf->vf); 1619 pf->vf = NULL; 1620 1621 /* This check is for when the driver is unloaded while VFs are 1622 * assigned. Setting the number of VFs to 0 through sysfs is caught 1623 * before this function ever gets called. 1624 */ 1625 if (!pci_vfs_assigned(pf->pdev)) { 1626 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1627 * work correctly when SR-IOV gets re-enabled. 1628 */ 1629 for (vf_id = 0; vf_id < tmp; vf_id++) { 1630 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1631 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1632 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1633 } 1634 } 1635 clear_bit(__I40E_VF_DISABLE, pf->state); 1636 } 1637 1638 #ifdef CONFIG_PCI_IOV 1639 /** 1640 * i40e_alloc_vfs 1641 * @pf: pointer to the PF structure 1642 * @num_alloc_vfs: number of VFs to allocate 1643 * 1644 * allocate VF resources 1645 **/ 1646 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1647 { 1648 struct i40e_vf *vfs; 1649 int i, ret = 0; 1650 1651 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1652 i40e_irq_dynamic_disable_icr0(pf); 1653 1654 /* Check to see if we're just allocating resources for extant VFs */ 1655 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1656 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1657 if (ret) { 1658 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1659 pf->num_alloc_vfs = 0; 1660 goto err_iov; 1661 } 1662 } 1663 /* allocate memory */ 1664 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1665 if (!vfs) { 1666 ret = -ENOMEM; 1667 goto err_alloc; 1668 } 1669 pf->vf = vfs; 1670 1671 /* apply default profile */ 1672 for (i = 0; i < num_alloc_vfs; i++) { 1673 vfs[i].pf = pf; 1674 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1675 vfs[i].vf_id = i; 1676 1677 /* assign default capabilities */ 1678 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1679 vfs[i].spoofchk = true; 1680 1681 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1682 1683 } 1684 pf->num_alloc_vfs = num_alloc_vfs; 1685 1686 /* VF resources get allocated during reset */ 1687 i40e_reset_all_vfs(pf, false); 1688 1689 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1690 1691 err_alloc: 1692 if (ret) 1693 i40e_free_vfs(pf); 1694 err_iov: 1695 /* Re-enable interrupt 0. */ 1696 i40e_irq_dynamic_enable_icr0(pf); 1697 return ret; 1698 } 1699 1700 #endif 1701 /** 1702 * i40e_pci_sriov_enable 1703 * @pdev: pointer to a pci_dev structure 1704 * @num_vfs: number of VFs to allocate 1705 * 1706 * Enable or change the number of VFs 1707 **/ 1708 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1709 { 1710 #ifdef CONFIG_PCI_IOV 1711 struct i40e_pf *pf = pci_get_drvdata(pdev); 1712 int pre_existing_vfs = pci_num_vf(pdev); 1713 int err = 0; 1714 1715 if (test_bit(__I40E_TESTING, pf->state)) { 1716 dev_warn(&pdev->dev, 1717 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1718 err = -EPERM; 1719 goto err_out; 1720 } 1721 1722 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1723 i40e_free_vfs(pf); 1724 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1725 goto out; 1726 1727 if (num_vfs > pf->num_req_vfs) { 1728 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1729 num_vfs, pf->num_req_vfs); 1730 err = -EPERM; 1731 goto err_out; 1732 } 1733 1734 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1735 err = i40e_alloc_vfs(pf, num_vfs); 1736 if (err) { 1737 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1738 goto err_out; 1739 } 1740 1741 out: 1742 return num_vfs; 1743 1744 err_out: 1745 return err; 1746 #endif 1747 return 0; 1748 } 1749 1750 /** 1751 * i40e_pci_sriov_configure 1752 * @pdev: pointer to a pci_dev structure 1753 * @num_vfs: number of VFs to allocate 1754 * 1755 * Enable or change the number of VFs. Called when the user updates the number 1756 * of VFs in sysfs. 1757 **/ 1758 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1759 { 1760 struct i40e_pf *pf = pci_get_drvdata(pdev); 1761 int ret = 0; 1762 1763 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 1764 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 1765 return -EAGAIN; 1766 } 1767 1768 if (num_vfs) { 1769 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1770 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1771 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); 1772 } 1773 ret = i40e_pci_sriov_enable(pdev, num_vfs); 1774 goto sriov_configure_out; 1775 } 1776 1777 if (!pci_vfs_assigned(pf->pdev)) { 1778 i40e_free_vfs(pf); 1779 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1780 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); 1781 } else { 1782 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1783 ret = -EINVAL; 1784 goto sriov_configure_out; 1785 } 1786 sriov_configure_out: 1787 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 1788 return ret; 1789 } 1790 1791 /***********************virtual channel routines******************/ 1792 1793 /** 1794 * i40e_vc_send_msg_to_vf 1795 * @vf: pointer to the VF info 1796 * @v_opcode: virtual channel opcode 1797 * @v_retval: virtual channel return value 1798 * @msg: pointer to the msg buffer 1799 * @msglen: msg length 1800 * 1801 * send msg to VF 1802 **/ 1803 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1804 u32 v_retval, u8 *msg, u16 msglen) 1805 { 1806 struct i40e_pf *pf; 1807 struct i40e_hw *hw; 1808 int abs_vf_id; 1809 i40e_status aq_ret; 1810 1811 /* validate the request */ 1812 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1813 return -EINVAL; 1814 1815 pf = vf->pf; 1816 hw = &pf->hw; 1817 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1818 1819 /* single place to detect unsuccessful return values */ 1820 if (v_retval) { 1821 vf->num_invalid_msgs++; 1822 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1823 vf->vf_id, v_opcode, v_retval); 1824 if (vf->num_invalid_msgs > 1825 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1826 dev_err(&pf->pdev->dev, 1827 "Number of invalid messages exceeded for VF %d\n", 1828 vf->vf_id); 1829 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1830 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1831 } 1832 } else { 1833 vf->num_valid_msgs++; 1834 /* reset the invalid counter, if a valid message is received. */ 1835 vf->num_invalid_msgs = 0; 1836 } 1837 1838 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1839 msg, msglen, NULL); 1840 if (aq_ret) { 1841 dev_info(&pf->pdev->dev, 1842 "Unable to send the message to VF %d aq_err %d\n", 1843 vf->vf_id, pf->hw.aq.asq_last_status); 1844 return -EIO; 1845 } 1846 1847 return 0; 1848 } 1849 1850 /** 1851 * i40e_vc_send_resp_to_vf 1852 * @vf: pointer to the VF info 1853 * @opcode: operation code 1854 * @retval: return value 1855 * 1856 * send resp msg to VF 1857 **/ 1858 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1859 enum virtchnl_ops opcode, 1860 i40e_status retval) 1861 { 1862 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1863 } 1864 1865 /** 1866 * i40e_vc_get_version_msg 1867 * @vf: pointer to the VF info 1868 * @msg: pointer to the msg buffer 1869 * 1870 * called from the VF to request the API version used by the PF 1871 **/ 1872 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1873 { 1874 struct virtchnl_version_info info = { 1875 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR 1876 }; 1877 1878 vf->vf_ver = *(struct virtchnl_version_info *)msg; 1879 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1880 if (VF_IS_V10(&vf->vf_ver)) 1881 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1882 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, 1883 I40E_SUCCESS, (u8 *)&info, 1884 sizeof(struct virtchnl_version_info)); 1885 } 1886 1887 /** 1888 * i40e_del_qch - delete all the additional VSIs created as a part of ADq 1889 * @vf: pointer to VF structure 1890 **/ 1891 static void i40e_del_qch(struct i40e_vf *vf) 1892 { 1893 struct i40e_pf *pf = vf->pf; 1894 int i; 1895 1896 /* first element in the array belongs to primary VF VSI and we shouldn't 1897 * delete it. We should however delete the rest of the VSIs created 1898 */ 1899 for (i = 1; i < vf->num_tc; i++) { 1900 if (vf->ch[i].vsi_idx) { 1901 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); 1902 vf->ch[i].vsi_idx = 0; 1903 vf->ch[i].vsi_id = 0; 1904 } 1905 } 1906 } 1907 1908 /** 1909 * i40e_vc_get_vf_resources_msg 1910 * @vf: pointer to the VF info 1911 * @msg: pointer to the msg buffer 1912 * 1913 * called from the VF to request its resources 1914 **/ 1915 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1916 { 1917 struct virtchnl_vf_resource *vfres = NULL; 1918 struct i40e_pf *pf = vf->pf; 1919 i40e_status aq_ret = 0; 1920 struct i40e_vsi *vsi; 1921 int num_vsis = 1; 1922 size_t len = 0; 1923 int ret; 1924 1925 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 1926 aq_ret = I40E_ERR_PARAM; 1927 goto err; 1928 } 1929 1930 len = struct_size(vfres, vsi_res, num_vsis); 1931 vfres = kzalloc(len, GFP_KERNEL); 1932 if (!vfres) { 1933 aq_ret = I40E_ERR_NO_MEMORY; 1934 len = 0; 1935 goto err; 1936 } 1937 if (VF_IS_V11(&vf->vf_ver)) 1938 vf->driver_caps = *(u32 *)msg; 1939 else 1940 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | 1941 VIRTCHNL_VF_OFFLOAD_RSS_REG | 1942 VIRTCHNL_VF_OFFLOAD_VLAN; 1943 1944 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; 1945 vsi = pf->vsi[vf->lan_vsi_idx]; 1946 if (!vsi->info.pvid) 1947 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; 1948 1949 if (i40e_vf_client_capable(pf, vf->vf_id) && 1950 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { 1951 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; 1952 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 1953 } else { 1954 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 1955 } 1956 1957 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { 1958 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; 1959 } else { 1960 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && 1961 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 1962 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1963 else 1964 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; 1965 } 1966 1967 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1968 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1969 vfres->vf_cap_flags |= 1970 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1971 } 1972 1973 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) 1974 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; 1975 1976 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && 1977 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 1978 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 1979 1980 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 1981 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 1982 dev_err(&pf->pdev->dev, 1983 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 1984 vf->vf_id); 1985 aq_ret = I40E_ERR_PARAM; 1986 goto err; 1987 } 1988 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1989 } 1990 1991 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { 1992 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1993 vfres->vf_cap_flags |= 1994 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1995 } 1996 1997 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) 1998 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; 1999 2000 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) 2001 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; 2002 2003 vfres->num_vsis = num_vsis; 2004 vfres->num_queue_pairs = vf->num_queue_pairs; 2005 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 2006 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 2007 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 2008 2009 if (vf->lan_vsi_idx) { 2010 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 2011 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; 2012 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 2013 /* VFs only use TC 0 */ 2014 vfres->vsi_res[0].qset_handle 2015 = le16_to_cpu(vsi->info.qs_handle[0]); 2016 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 2017 vf->default_lan_addr.addr); 2018 } 2019 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 2020 2021 err: 2022 /* send the response back to the VF */ 2023 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, 2024 aq_ret, (u8 *)vfres, len); 2025 2026 kfree(vfres); 2027 return ret; 2028 } 2029 2030 /** 2031 * i40e_vc_reset_vf_msg 2032 * @vf: pointer to the VF info 2033 * 2034 * called from the VF to reset itself, 2035 * unlike other virtchnl messages, PF driver 2036 * doesn't send the response back to the VF 2037 **/ 2038 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 2039 { 2040 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 2041 i40e_reset_vf(vf, false); 2042 } 2043 2044 /** 2045 * i40e_vc_config_promiscuous_mode_msg 2046 * @vf: pointer to the VF info 2047 * @msg: pointer to the msg buffer 2048 * 2049 * called from the VF to configure the promiscuous mode of 2050 * VF vsis 2051 **/ 2052 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) 2053 { 2054 struct virtchnl_promisc_info *info = 2055 (struct virtchnl_promisc_info *)msg; 2056 struct i40e_pf *pf = vf->pf; 2057 i40e_status aq_ret = 0; 2058 bool allmulti = false; 2059 bool alluni = false; 2060 2061 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2062 aq_ret = I40E_ERR_PARAM; 2063 goto err_out; 2064 } 2065 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2066 dev_err(&pf->pdev->dev, 2067 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 2068 vf->vf_id); 2069 2070 /* Lie to the VF on purpose, because this is an error we can 2071 * ignore. Unprivileged VF is not a virtual channel error. 2072 */ 2073 aq_ret = 0; 2074 goto err_out; 2075 } 2076 2077 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { 2078 aq_ret = I40E_ERR_PARAM; 2079 goto err_out; 2080 } 2081 2082 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 2083 aq_ret = I40E_ERR_PARAM; 2084 goto err_out; 2085 } 2086 2087 /* Multicast promiscuous handling*/ 2088 if (info->flags & FLAG_VF_MULTICAST_PROMISC) 2089 allmulti = true; 2090 2091 if (info->flags & FLAG_VF_UNICAST_PROMISC) 2092 alluni = true; 2093 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, 2094 alluni); 2095 if (aq_ret) 2096 goto err_out; 2097 2098 if (allmulti) { 2099 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, 2100 &vf->vf_states)) 2101 dev_info(&pf->pdev->dev, 2102 "VF %d successfully set multicast promiscuous mode\n", 2103 vf->vf_id); 2104 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, 2105 &vf->vf_states)) 2106 dev_info(&pf->pdev->dev, 2107 "VF %d successfully unset multicast promiscuous mode\n", 2108 vf->vf_id); 2109 2110 if (alluni) { 2111 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, 2112 &vf->vf_states)) 2113 dev_info(&pf->pdev->dev, 2114 "VF %d successfully set unicast promiscuous mode\n", 2115 vf->vf_id); 2116 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, 2117 &vf->vf_states)) 2118 dev_info(&pf->pdev->dev, 2119 "VF %d successfully unset unicast promiscuous mode\n", 2120 vf->vf_id); 2121 2122 err_out: 2123 /* send the response to the VF */ 2124 return i40e_vc_send_resp_to_vf(vf, 2125 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 2126 aq_ret); 2127 } 2128 2129 /** 2130 * i40e_vc_config_queues_msg 2131 * @vf: pointer to the VF info 2132 * @msg: pointer to the msg buffer 2133 * 2134 * called from the VF to configure the rx/tx 2135 * queues 2136 **/ 2137 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) 2138 { 2139 struct virtchnl_vsi_queue_config_info *qci = 2140 (struct virtchnl_vsi_queue_config_info *)msg; 2141 struct virtchnl_queue_pair_info *qpi; 2142 struct i40e_pf *pf = vf->pf; 2143 u16 vsi_id, vsi_queue_id = 0; 2144 u16 num_qps_all = 0; 2145 i40e_status aq_ret = 0; 2146 int i, j = 0, idx = 0; 2147 2148 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2149 aq_ret = I40E_ERR_PARAM; 2150 goto error_param; 2151 } 2152 2153 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { 2154 aq_ret = I40E_ERR_PARAM; 2155 goto error_param; 2156 } 2157 2158 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { 2159 aq_ret = I40E_ERR_PARAM; 2160 goto error_param; 2161 } 2162 2163 if (vf->adq_enabled) { 2164 for (i = 0; i < I40E_MAX_VF_VSI; i++) 2165 num_qps_all += vf->ch[i].num_qps; 2166 if (num_qps_all != qci->num_queue_pairs) { 2167 aq_ret = I40E_ERR_PARAM; 2168 goto error_param; 2169 } 2170 } 2171 2172 vsi_id = qci->vsi_id; 2173 2174 for (i = 0; i < qci->num_queue_pairs; i++) { 2175 qpi = &qci->qpair[i]; 2176 2177 if (!vf->adq_enabled) { 2178 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 2179 qpi->txq.queue_id)) { 2180 aq_ret = I40E_ERR_PARAM; 2181 goto error_param; 2182 } 2183 2184 vsi_queue_id = qpi->txq.queue_id; 2185 2186 if (qpi->txq.vsi_id != qci->vsi_id || 2187 qpi->rxq.vsi_id != qci->vsi_id || 2188 qpi->rxq.queue_id != vsi_queue_id) { 2189 aq_ret = I40E_ERR_PARAM; 2190 goto error_param; 2191 } 2192 } 2193 2194 if (vf->adq_enabled) { 2195 if (idx >= ARRAY_SIZE(vf->ch)) { 2196 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2197 goto error_param; 2198 } 2199 vsi_id = vf->ch[idx].vsi_id; 2200 } 2201 2202 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 2203 &qpi->rxq) || 2204 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 2205 &qpi->txq)) { 2206 aq_ret = I40E_ERR_PARAM; 2207 goto error_param; 2208 } 2209 2210 /* For ADq there can be up to 4 VSIs with max 4 queues each. 2211 * VF does not know about these additional VSIs and all 2212 * it cares is about its own queues. PF configures these queues 2213 * to its appropriate VSIs based on TC mapping 2214 */ 2215 if (vf->adq_enabled) { 2216 if (idx >= ARRAY_SIZE(vf->ch)) { 2217 aq_ret = I40E_ERR_NO_AVAILABLE_VSI; 2218 goto error_param; 2219 } 2220 if (j == (vf->ch[idx].num_qps - 1)) { 2221 idx++; 2222 j = 0; /* resetting the queue count */ 2223 vsi_queue_id = 0; 2224 } else { 2225 j++; 2226 vsi_queue_id++; 2227 } 2228 } 2229 } 2230 /* set vsi num_queue_pairs in use to num configured by VF */ 2231 if (!vf->adq_enabled) { 2232 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = 2233 qci->num_queue_pairs; 2234 } else { 2235 for (i = 0; i < vf->num_tc; i++) 2236 pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs = 2237 vf->ch[i].num_qps; 2238 } 2239 2240 error_param: 2241 /* send the response to the VF */ 2242 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, 2243 aq_ret); 2244 } 2245 2246 /** 2247 * i40e_validate_queue_map 2248 * @vsi_id: vsi id 2249 * @queuemap: Tx or Rx queue map 2250 * 2251 * check if Tx or Rx queue map is valid 2252 **/ 2253 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, 2254 unsigned long queuemap) 2255 { 2256 u16 vsi_queue_id, queue_id; 2257 2258 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { 2259 if (vf->adq_enabled) { 2260 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; 2261 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); 2262 } else { 2263 queue_id = vsi_queue_id; 2264 } 2265 2266 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) 2267 return -EINVAL; 2268 } 2269 2270 return 0; 2271 } 2272 2273 /** 2274 * i40e_vc_config_irq_map_msg 2275 * @vf: pointer to the VF info 2276 * @msg: pointer to the msg buffer 2277 * 2278 * called from the VF to configure the irq to 2279 * queue map 2280 **/ 2281 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) 2282 { 2283 struct virtchnl_irq_map_info *irqmap_info = 2284 (struct virtchnl_irq_map_info *)msg; 2285 struct virtchnl_vector_map *map; 2286 u16 vsi_id; 2287 i40e_status aq_ret = 0; 2288 int i; 2289 2290 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2291 aq_ret = I40E_ERR_PARAM; 2292 goto error_param; 2293 } 2294 2295 if (irqmap_info->num_vectors > 2296 vf->pf->hw.func_caps.num_msix_vectors_vf) { 2297 aq_ret = I40E_ERR_PARAM; 2298 goto error_param; 2299 } 2300 2301 for (i = 0; i < irqmap_info->num_vectors; i++) { 2302 map = &irqmap_info->vecmap[i]; 2303 /* validate msg params */ 2304 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || 2305 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { 2306 aq_ret = I40E_ERR_PARAM; 2307 goto error_param; 2308 } 2309 vsi_id = map->vsi_id; 2310 2311 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { 2312 aq_ret = I40E_ERR_PARAM; 2313 goto error_param; 2314 } 2315 2316 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { 2317 aq_ret = I40E_ERR_PARAM; 2318 goto error_param; 2319 } 2320 2321 i40e_config_irq_link_list(vf, vsi_id, map); 2322 } 2323 error_param: 2324 /* send the response to the VF */ 2325 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, 2326 aq_ret); 2327 } 2328 2329 /** 2330 * i40e_ctrl_vf_tx_rings 2331 * @vsi: the SRIOV VSI being configured 2332 * @q_map: bit map of the queues to be enabled 2333 * @enable: start or stop the queue 2334 **/ 2335 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2336 bool enable) 2337 { 2338 struct i40e_pf *pf = vsi->back; 2339 int ret = 0; 2340 u16 q_id; 2341 2342 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2343 ret = i40e_control_wait_tx_q(vsi->seid, pf, 2344 vsi->base_queue + q_id, 2345 false /*is xdp*/, enable); 2346 if (ret) 2347 break; 2348 } 2349 return ret; 2350 } 2351 2352 /** 2353 * i40e_ctrl_vf_rx_rings 2354 * @vsi: the SRIOV VSI being configured 2355 * @q_map: bit map of the queues to be enabled 2356 * @enable: start or stop the queue 2357 **/ 2358 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, 2359 bool enable) 2360 { 2361 struct i40e_pf *pf = vsi->back; 2362 int ret = 0; 2363 u16 q_id; 2364 2365 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { 2366 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, 2367 enable); 2368 if (ret) 2369 break; 2370 } 2371 return ret; 2372 } 2373 2374 /** 2375 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL 2376 * @vqs: virtchnl_queue_select structure containing bitmaps to validate 2377 * 2378 * Returns true if validation was successful, else false. 2379 */ 2380 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) 2381 { 2382 if ((!vqs->rx_queues && !vqs->tx_queues) || 2383 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || 2384 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) 2385 return false; 2386 2387 return true; 2388 } 2389 2390 /** 2391 * i40e_vc_enable_queues_msg 2392 * @vf: pointer to the VF info 2393 * @msg: pointer to the msg buffer 2394 * 2395 * called from the VF to enable all or specific queue(s) 2396 **/ 2397 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) 2398 { 2399 struct virtchnl_queue_select *vqs = 2400 (struct virtchnl_queue_select *)msg; 2401 struct i40e_pf *pf = vf->pf; 2402 i40e_status aq_ret = 0; 2403 int i; 2404 2405 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2406 aq_ret = I40E_ERR_PARAM; 2407 goto error_param; 2408 } 2409 2410 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2411 aq_ret = I40E_ERR_PARAM; 2412 goto error_param; 2413 } 2414 2415 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2416 aq_ret = I40E_ERR_PARAM; 2417 goto error_param; 2418 } 2419 2420 /* Use the queue bit map sent by the VF */ 2421 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2422 true)) { 2423 aq_ret = I40E_ERR_TIMEOUT; 2424 goto error_param; 2425 } 2426 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2427 true)) { 2428 aq_ret = I40E_ERR_TIMEOUT; 2429 goto error_param; 2430 } 2431 2432 /* need to start the rings for additional ADq VSI's as well */ 2433 if (vf->adq_enabled) { 2434 /* zero belongs to LAN VSI */ 2435 for (i = 1; i < vf->num_tc; i++) { 2436 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) 2437 aq_ret = I40E_ERR_TIMEOUT; 2438 } 2439 } 2440 2441 vf->queues_enabled = true; 2442 2443 error_param: 2444 /* send the response to the VF */ 2445 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, 2446 aq_ret); 2447 } 2448 2449 /** 2450 * i40e_vc_disable_queues_msg 2451 * @vf: pointer to the VF info 2452 * @msg: pointer to the msg buffer 2453 * 2454 * called from the VF to disable all or specific 2455 * queue(s) 2456 **/ 2457 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) 2458 { 2459 struct virtchnl_queue_select *vqs = 2460 (struct virtchnl_queue_select *)msg; 2461 struct i40e_pf *pf = vf->pf; 2462 i40e_status aq_ret = 0; 2463 2464 /* Immediately mark queues as disabled */ 2465 vf->queues_enabled = false; 2466 2467 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2468 aq_ret = I40E_ERR_PARAM; 2469 goto error_param; 2470 } 2471 2472 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2473 aq_ret = I40E_ERR_PARAM; 2474 goto error_param; 2475 } 2476 2477 if (!i40e_vc_validate_vqs_bitmaps(vqs)) { 2478 aq_ret = I40E_ERR_PARAM; 2479 goto error_param; 2480 } 2481 2482 /* Use the queue bit map sent by the VF */ 2483 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, 2484 false)) { 2485 aq_ret = I40E_ERR_TIMEOUT; 2486 goto error_param; 2487 } 2488 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, 2489 false)) { 2490 aq_ret = I40E_ERR_TIMEOUT; 2491 goto error_param; 2492 } 2493 error_param: 2494 /* send the response to the VF */ 2495 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, 2496 aq_ret); 2497 } 2498 2499 /** 2500 * i40e_vc_request_queues_msg 2501 * @vf: pointer to the VF info 2502 * @msg: pointer to the msg buffer 2503 * 2504 * VFs get a default number of queues but can use this message to request a 2505 * different number. If the request is successful, PF will reset the VF and 2506 * return 0. If unsuccessful, PF will send message informing VF of number of 2507 * available queues and return result of sending VF a message. 2508 **/ 2509 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) 2510 { 2511 struct virtchnl_vf_res_request *vfres = 2512 (struct virtchnl_vf_res_request *)msg; 2513 u16 req_pairs = vfres->num_queue_pairs; 2514 u8 cur_pairs = vf->num_queue_pairs; 2515 struct i40e_pf *pf = vf->pf; 2516 2517 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 2518 return -EINVAL; 2519 2520 if (req_pairs > I40E_MAX_VF_QUEUES) { 2521 dev_err(&pf->pdev->dev, 2522 "VF %d tried to request more than %d queues.\n", 2523 vf->vf_id, 2524 I40E_MAX_VF_QUEUES); 2525 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; 2526 } else if (req_pairs - cur_pairs > pf->queues_left) { 2527 dev_warn(&pf->pdev->dev, 2528 "VF %d requested %d more queues, but only %d left.\n", 2529 vf->vf_id, 2530 req_pairs - cur_pairs, 2531 pf->queues_left); 2532 vfres->num_queue_pairs = pf->queues_left + cur_pairs; 2533 } else { 2534 /* successful request */ 2535 vf->num_req_queues = req_pairs; 2536 i40e_vc_notify_vf_reset(vf); 2537 i40e_reset_vf(vf, false); 2538 return 0; 2539 } 2540 2541 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, 2542 (u8 *)vfres, sizeof(*vfres)); 2543 } 2544 2545 /** 2546 * i40e_vc_get_stats_msg 2547 * @vf: pointer to the VF info 2548 * @msg: pointer to the msg buffer 2549 * 2550 * called from the VF to get vsi stats 2551 **/ 2552 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) 2553 { 2554 struct virtchnl_queue_select *vqs = 2555 (struct virtchnl_queue_select *)msg; 2556 struct i40e_pf *pf = vf->pf; 2557 struct i40e_eth_stats stats; 2558 i40e_status aq_ret = 0; 2559 struct i40e_vsi *vsi; 2560 2561 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2562 2563 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2564 aq_ret = I40E_ERR_PARAM; 2565 goto error_param; 2566 } 2567 2568 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2569 aq_ret = I40E_ERR_PARAM; 2570 goto error_param; 2571 } 2572 2573 vsi = pf->vsi[vf->lan_vsi_idx]; 2574 if (!vsi) { 2575 aq_ret = I40E_ERR_PARAM; 2576 goto error_param; 2577 } 2578 i40e_update_eth_stats(vsi); 2579 stats = vsi->eth_stats; 2580 2581 error_param: 2582 /* send the response back to the VF */ 2583 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, 2584 (u8 *)&stats, sizeof(stats)); 2585 } 2586 2587 /* If the VF is not trusted restrict the number of MAC/VLAN it can program 2588 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast 2589 */ 2590 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) 2591 #define I40E_VC_MAX_VLAN_PER_VF 16 2592 2593 /** 2594 * i40e_check_vf_permission 2595 * @vf: pointer to the VF info 2596 * @al: MAC address list from virtchnl 2597 * 2598 * Check that the given list of MAC addresses is allowed. Will return -EPERM 2599 * if any address in the list is not valid. Checks the following conditions: 2600 * 2601 * 1) broadcast and zero addresses are never valid 2602 * 2) unicast addresses are not allowed if the VMM has administratively set 2603 * the VF MAC address, unless the VF is marked as privileged. 2604 * 3) There is enough space to add all the addresses. 2605 * 2606 * Note that to guarantee consistency, it is expected this function be called 2607 * while holding the mac_filter_hash_lock, as otherwise the current number of 2608 * addresses might not be accurate. 2609 **/ 2610 static inline int i40e_check_vf_permission(struct i40e_vf *vf, 2611 struct virtchnl_ether_addr_list *al) 2612 { 2613 struct i40e_pf *pf = vf->pf; 2614 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; 2615 int mac2add_cnt = 0; 2616 int i; 2617 2618 for (i = 0; i < al->num_elements; i++) { 2619 struct i40e_mac_filter *f; 2620 u8 *addr = al->list[i].addr; 2621 2622 if (is_broadcast_ether_addr(addr) || 2623 is_zero_ether_addr(addr)) { 2624 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", 2625 addr); 2626 return I40E_ERR_INVALID_MAC_ADDR; 2627 } 2628 2629 /* If the host VMM administrator has set the VF MAC address 2630 * administratively via the ndo_set_vf_mac command then deny 2631 * permission to the VF to add or delete unicast MAC addresses. 2632 * Unless the VF is privileged and then it can do whatever. 2633 * The VF may request to set the MAC address filter already 2634 * assigned to it so do not return an error in that case. 2635 */ 2636 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2637 !is_multicast_ether_addr(addr) && vf->pf_set_mac && 2638 !ether_addr_equal(addr, vf->default_lan_addr.addr)) { 2639 dev_err(&pf->pdev->dev, 2640 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); 2641 return -EPERM; 2642 } 2643 2644 /*count filters that really will be added*/ 2645 f = i40e_find_mac(vsi, addr); 2646 if (!f) 2647 ++mac2add_cnt; 2648 } 2649 2650 /* If this VF is not privileged, then we can't add more than a limited 2651 * number of addresses. Check to make sure that the additions do not 2652 * push us over the limit. 2653 */ 2654 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2655 (i40e_count_filters(vsi) + mac2add_cnt) > 2656 I40E_VC_MAX_MAC_ADDR_PER_VF) { 2657 dev_err(&pf->pdev->dev, 2658 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); 2659 return -EPERM; 2660 } 2661 return 0; 2662 } 2663 2664 /** 2665 * i40e_vc_add_mac_addr_msg 2666 * @vf: pointer to the VF info 2667 * @msg: pointer to the msg buffer 2668 * 2669 * add guest mac address filter 2670 **/ 2671 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2672 { 2673 struct virtchnl_ether_addr_list *al = 2674 (struct virtchnl_ether_addr_list *)msg; 2675 struct i40e_pf *pf = vf->pf; 2676 struct i40e_vsi *vsi = NULL; 2677 i40e_status ret = 0; 2678 int i; 2679 2680 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2681 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2682 ret = I40E_ERR_PARAM; 2683 goto error_param; 2684 } 2685 2686 vsi = pf->vsi[vf->lan_vsi_idx]; 2687 2688 /* Lock once, because all function inside for loop accesses VSI's 2689 * MAC filter list which needs to be protected using same lock. 2690 */ 2691 spin_lock_bh(&vsi->mac_filter_hash_lock); 2692 2693 ret = i40e_check_vf_permission(vf, al); 2694 if (ret) { 2695 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2696 goto error_param; 2697 } 2698 2699 /* add new addresses to the list */ 2700 for (i = 0; i < al->num_elements; i++) { 2701 struct i40e_mac_filter *f; 2702 2703 f = i40e_find_mac(vsi, al->list[i].addr); 2704 if (!f) { 2705 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2706 2707 if (!f) { 2708 dev_err(&pf->pdev->dev, 2709 "Unable to add MAC filter %pM for VF %d\n", 2710 al->list[i].addr, vf->vf_id); 2711 ret = I40E_ERR_PARAM; 2712 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2713 goto error_param; 2714 } 2715 } 2716 } 2717 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2718 2719 /* program the updated filter list */ 2720 ret = i40e_sync_vsi_filters(vsi); 2721 if (ret) 2722 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2723 vf->vf_id, ret); 2724 2725 error_param: 2726 /* send the response to the VF */ 2727 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, 2728 ret); 2729 } 2730 2731 /** 2732 * i40e_vc_del_mac_addr_msg 2733 * @vf: pointer to the VF info 2734 * @msg: pointer to the msg buffer 2735 * 2736 * remove guest mac address filter 2737 **/ 2738 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) 2739 { 2740 struct virtchnl_ether_addr_list *al = 2741 (struct virtchnl_ether_addr_list *)msg; 2742 struct i40e_pf *pf = vf->pf; 2743 struct i40e_vsi *vsi = NULL; 2744 i40e_status ret = 0; 2745 int i; 2746 2747 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2748 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { 2749 ret = I40E_ERR_PARAM; 2750 goto error_param; 2751 } 2752 2753 for (i = 0; i < al->num_elements; i++) { 2754 if (is_broadcast_ether_addr(al->list[i].addr) || 2755 is_zero_ether_addr(al->list[i].addr)) { 2756 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2757 al->list[i].addr, vf->vf_id); 2758 ret = I40E_ERR_INVALID_MAC_ADDR; 2759 goto error_param; 2760 } 2761 } 2762 vsi = pf->vsi[vf->lan_vsi_idx]; 2763 2764 spin_lock_bh(&vsi->mac_filter_hash_lock); 2765 /* delete addresses from the list */ 2766 for (i = 0; i < al->num_elements; i++) 2767 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2768 ret = I40E_ERR_INVALID_MAC_ADDR; 2769 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2770 goto error_param; 2771 } 2772 2773 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2774 2775 /* program the updated filter list */ 2776 ret = i40e_sync_vsi_filters(vsi); 2777 if (ret) 2778 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2779 vf->vf_id, ret); 2780 2781 error_param: 2782 /* send the response to the VF */ 2783 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, 2784 ret); 2785 } 2786 2787 /** 2788 * i40e_vc_add_vlan_msg 2789 * @vf: pointer to the VF info 2790 * @msg: pointer to the msg buffer 2791 * 2792 * program guest vlan id 2793 **/ 2794 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) 2795 { 2796 struct virtchnl_vlan_filter_list *vfl = 2797 (struct virtchnl_vlan_filter_list *)msg; 2798 struct i40e_pf *pf = vf->pf; 2799 struct i40e_vsi *vsi = NULL; 2800 i40e_status aq_ret = 0; 2801 int i; 2802 2803 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2804 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2805 dev_err(&pf->pdev->dev, 2806 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2807 goto error_param; 2808 } 2809 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2810 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 2811 aq_ret = I40E_ERR_PARAM; 2812 goto error_param; 2813 } 2814 2815 for (i = 0; i < vfl->num_elements; i++) { 2816 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2817 aq_ret = I40E_ERR_PARAM; 2818 dev_err(&pf->pdev->dev, 2819 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2820 goto error_param; 2821 } 2822 } 2823 vsi = pf->vsi[vf->lan_vsi_idx]; 2824 if (vsi->info.pvid) { 2825 aq_ret = I40E_ERR_PARAM; 2826 goto error_param; 2827 } 2828 2829 i40e_vlan_stripping_enable(vsi); 2830 for (i = 0; i < vfl->num_elements; i++) { 2831 /* add new VLAN filter */ 2832 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 2833 if (!ret) 2834 vf->num_vlan++; 2835 2836 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2837 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2838 true, 2839 vfl->vlan_id[i], 2840 NULL); 2841 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2842 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2843 true, 2844 vfl->vlan_id[i], 2845 NULL); 2846 2847 if (ret) 2848 dev_err(&pf->pdev->dev, 2849 "Unable to add VLAN filter %d for VF %d, error %d\n", 2850 vfl->vlan_id[i], vf->vf_id, ret); 2851 } 2852 2853 error_param: 2854 /* send the response to the VF */ 2855 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); 2856 } 2857 2858 /** 2859 * i40e_vc_remove_vlan_msg 2860 * @vf: pointer to the VF info 2861 * @msg: pointer to the msg buffer 2862 * 2863 * remove programmed guest vlan id 2864 **/ 2865 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) 2866 { 2867 struct virtchnl_vlan_filter_list *vfl = 2868 (struct virtchnl_vlan_filter_list *)msg; 2869 struct i40e_pf *pf = vf->pf; 2870 struct i40e_vsi *vsi = NULL; 2871 i40e_status aq_ret = 0; 2872 int i; 2873 2874 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2875 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { 2876 aq_ret = I40E_ERR_PARAM; 2877 goto error_param; 2878 } 2879 2880 for (i = 0; i < vfl->num_elements; i++) { 2881 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2882 aq_ret = I40E_ERR_PARAM; 2883 goto error_param; 2884 } 2885 } 2886 2887 vsi = pf->vsi[vf->lan_vsi_idx]; 2888 if (vsi->info.pvid) { 2889 if (vfl->num_elements > 1 || vfl->vlan_id[0]) 2890 aq_ret = I40E_ERR_PARAM; 2891 goto error_param; 2892 } 2893 2894 for (i = 0; i < vfl->num_elements; i++) { 2895 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 2896 vf->num_vlan--; 2897 2898 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2899 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2900 false, 2901 vfl->vlan_id[i], 2902 NULL); 2903 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2904 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2905 false, 2906 vfl->vlan_id[i], 2907 NULL); 2908 } 2909 2910 error_param: 2911 /* send the response to the VF */ 2912 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); 2913 } 2914 2915 /** 2916 * i40e_vc_iwarp_msg 2917 * @vf: pointer to the VF info 2918 * @msg: pointer to the msg buffer 2919 * @msglen: msg length 2920 * 2921 * called from the VF for the iwarp msgs 2922 **/ 2923 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2924 { 2925 struct i40e_pf *pf = vf->pf; 2926 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 2927 i40e_status aq_ret = 0; 2928 2929 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2930 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2931 aq_ret = I40E_ERR_PARAM; 2932 goto error_param; 2933 } 2934 2935 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 2936 msg, msglen); 2937 2938 error_param: 2939 /* send the response to the VF */ 2940 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, 2941 aq_ret); 2942 } 2943 2944 /** 2945 * i40e_vc_iwarp_qvmap_msg 2946 * @vf: pointer to the VF info 2947 * @msg: pointer to the msg buffer 2948 * @config: config qvmap or release it 2949 * 2950 * called from the VF for the iwarp msgs 2951 **/ 2952 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) 2953 { 2954 struct virtchnl_iwarp_qvlist_info *qvlist_info = 2955 (struct virtchnl_iwarp_qvlist_info *)msg; 2956 i40e_status aq_ret = 0; 2957 2958 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2959 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2960 aq_ret = I40E_ERR_PARAM; 2961 goto error_param; 2962 } 2963 2964 if (config) { 2965 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2966 aq_ret = I40E_ERR_PARAM; 2967 } else { 2968 i40e_release_iwarp_qvlist(vf); 2969 } 2970 2971 error_param: 2972 /* send the response to the VF */ 2973 return i40e_vc_send_resp_to_vf(vf, 2974 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 2975 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 2976 aq_ret); 2977 } 2978 2979 /** 2980 * i40e_vc_config_rss_key 2981 * @vf: pointer to the VF info 2982 * @msg: pointer to the msg buffer 2983 * 2984 * Configure the VF's RSS key 2985 **/ 2986 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) 2987 { 2988 struct virtchnl_rss_key *vrk = 2989 (struct virtchnl_rss_key *)msg; 2990 struct i40e_pf *pf = vf->pf; 2991 struct i40e_vsi *vsi = NULL; 2992 i40e_status aq_ret = 0; 2993 2994 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2995 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || 2996 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { 2997 aq_ret = I40E_ERR_PARAM; 2998 goto err; 2999 } 3000 3001 vsi = pf->vsi[vf->lan_vsi_idx]; 3002 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 3003 err: 3004 /* send the response to the VF */ 3005 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, 3006 aq_ret); 3007 } 3008 3009 /** 3010 * i40e_vc_config_rss_lut 3011 * @vf: pointer to the VF info 3012 * @msg: pointer to the msg buffer 3013 * 3014 * Configure the VF's RSS LUT 3015 **/ 3016 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) 3017 { 3018 struct virtchnl_rss_lut *vrl = 3019 (struct virtchnl_rss_lut *)msg; 3020 struct i40e_pf *pf = vf->pf; 3021 struct i40e_vsi *vsi = NULL; 3022 i40e_status aq_ret = 0; 3023 u16 i; 3024 3025 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 3026 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || 3027 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { 3028 aq_ret = I40E_ERR_PARAM; 3029 goto err; 3030 } 3031 3032 for (i = 0; i < vrl->lut_entries; i++) 3033 if (vrl->lut[i] >= vf->num_queue_pairs) { 3034 aq_ret = I40E_ERR_PARAM; 3035 goto err; 3036 } 3037 3038 vsi = pf->vsi[vf->lan_vsi_idx]; 3039 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 3040 /* send the response to the VF */ 3041 err: 3042 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, 3043 aq_ret); 3044 } 3045 3046 /** 3047 * i40e_vc_get_rss_hena 3048 * @vf: pointer to the VF info 3049 * @msg: pointer to the msg buffer 3050 * 3051 * Return the RSS HENA bits allowed by the hardware 3052 **/ 3053 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) 3054 { 3055 struct virtchnl_rss_hena *vrh = NULL; 3056 struct i40e_pf *pf = vf->pf; 3057 i40e_status aq_ret = 0; 3058 int len = 0; 3059 3060 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3061 aq_ret = I40E_ERR_PARAM; 3062 goto err; 3063 } 3064 len = sizeof(struct virtchnl_rss_hena); 3065 3066 vrh = kzalloc(len, GFP_KERNEL); 3067 if (!vrh) { 3068 aq_ret = I40E_ERR_NO_MEMORY; 3069 len = 0; 3070 goto err; 3071 } 3072 vrh->hena = i40e_pf_get_default_rss_hena(pf); 3073 err: 3074 /* send the response back to the VF */ 3075 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, 3076 aq_ret, (u8 *)vrh, len); 3077 kfree(vrh); 3078 return aq_ret; 3079 } 3080 3081 /** 3082 * i40e_vc_set_rss_hena 3083 * @vf: pointer to the VF info 3084 * @msg: pointer to the msg buffer 3085 * 3086 * Set the RSS HENA bits for the VF 3087 **/ 3088 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) 3089 { 3090 struct virtchnl_rss_hena *vrh = 3091 (struct virtchnl_rss_hena *)msg; 3092 struct i40e_pf *pf = vf->pf; 3093 struct i40e_hw *hw = &pf->hw; 3094 i40e_status aq_ret = 0; 3095 3096 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3097 aq_ret = I40E_ERR_PARAM; 3098 goto err; 3099 } 3100 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 3101 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 3102 (u32)(vrh->hena >> 32)); 3103 3104 /* send the response to the VF */ 3105 err: 3106 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); 3107 } 3108 3109 /** 3110 * i40e_vc_enable_vlan_stripping 3111 * @vf: pointer to the VF info 3112 * @msg: pointer to the msg buffer 3113 * 3114 * Enable vlan header stripping for the VF 3115 **/ 3116 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3117 { 3118 i40e_status aq_ret = 0; 3119 struct i40e_vsi *vsi; 3120 3121 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3122 aq_ret = I40E_ERR_PARAM; 3123 goto err; 3124 } 3125 3126 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3127 i40e_vlan_stripping_enable(vsi); 3128 3129 /* send the response to the VF */ 3130 err: 3131 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, 3132 aq_ret); 3133 } 3134 3135 /** 3136 * i40e_vc_disable_vlan_stripping 3137 * @vf: pointer to the VF info 3138 * @msg: pointer to the msg buffer 3139 * 3140 * Disable vlan header stripping for the VF 3141 **/ 3142 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) 3143 { 3144 i40e_status aq_ret = 0; 3145 struct i40e_vsi *vsi; 3146 3147 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3148 aq_ret = I40E_ERR_PARAM; 3149 goto err; 3150 } 3151 3152 vsi = vf->pf->vsi[vf->lan_vsi_idx]; 3153 i40e_vlan_stripping_disable(vsi); 3154 3155 /* send the response to the VF */ 3156 err: 3157 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, 3158 aq_ret); 3159 } 3160 3161 /** 3162 * i40e_validate_cloud_filter 3163 * @mask: mask for TC filter 3164 * @data: data for TC filter 3165 * 3166 * This function validates cloud filter programmed as TC filter for ADq 3167 **/ 3168 static int i40e_validate_cloud_filter(struct i40e_vf *vf, 3169 struct virtchnl_filter *tc_filter) 3170 { 3171 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; 3172 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; 3173 struct i40e_pf *pf = vf->pf; 3174 struct i40e_vsi *vsi = NULL; 3175 struct i40e_mac_filter *f; 3176 struct hlist_node *h; 3177 bool found = false; 3178 int bkt; 3179 3180 if (!tc_filter->action) { 3181 dev_info(&pf->pdev->dev, 3182 "VF %d: Currently ADq doesn't support Drop Action\n", 3183 vf->vf_id); 3184 goto err; 3185 } 3186 3187 /* action_meta is TC number here to which the filter is applied */ 3188 if (!tc_filter->action_meta || 3189 tc_filter->action_meta > I40E_MAX_VF_VSI) { 3190 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", 3191 vf->vf_id, tc_filter->action_meta); 3192 goto err; 3193 } 3194 3195 /* Check filter if it's programmed for advanced mode or basic mode. 3196 * There are two ADq modes (for VF only), 3197 * 1. Basic mode: intended to allow as many filter options as possible 3198 * to be added to a VF in Non-trusted mode. Main goal is 3199 * to add filters to its own MAC and VLAN id. 3200 * 2. Advanced mode: is for allowing filters to be applied other than 3201 * its own MAC or VLAN. This mode requires the VF to be 3202 * Trusted. 3203 */ 3204 if (mask.dst_mac[0] && !mask.dst_ip[0]) { 3205 vsi = pf->vsi[vf->lan_vsi_idx]; 3206 f = i40e_find_mac(vsi, data.dst_mac); 3207 3208 if (!f) { 3209 dev_info(&pf->pdev->dev, 3210 "Destination MAC %pM doesn't belong to VF %d\n", 3211 data.dst_mac, vf->vf_id); 3212 goto err; 3213 } 3214 3215 if (mask.vlan_id) { 3216 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, 3217 hlist) { 3218 if (f->vlan == ntohs(data.vlan_id)) { 3219 found = true; 3220 break; 3221 } 3222 } 3223 if (!found) { 3224 dev_info(&pf->pdev->dev, 3225 "VF %d doesn't have any VLAN id %u\n", 3226 vf->vf_id, ntohs(data.vlan_id)); 3227 goto err; 3228 } 3229 } 3230 } else { 3231 /* Check if VF is trusted */ 3232 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 3233 dev_err(&pf->pdev->dev, 3234 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", 3235 vf->vf_id); 3236 return I40E_ERR_CONFIG; 3237 } 3238 } 3239 3240 if (mask.dst_mac[0] & data.dst_mac[0]) { 3241 if (is_broadcast_ether_addr(data.dst_mac) || 3242 is_zero_ether_addr(data.dst_mac)) { 3243 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", 3244 vf->vf_id, data.dst_mac); 3245 goto err; 3246 } 3247 } 3248 3249 if (mask.src_mac[0] & data.src_mac[0]) { 3250 if (is_broadcast_ether_addr(data.src_mac) || 3251 is_zero_ether_addr(data.src_mac)) { 3252 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", 3253 vf->vf_id, data.src_mac); 3254 goto err; 3255 } 3256 } 3257 3258 if (mask.dst_port & data.dst_port) { 3259 if (!data.dst_port) { 3260 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", 3261 vf->vf_id); 3262 goto err; 3263 } 3264 } 3265 3266 if (mask.src_port & data.src_port) { 3267 if (!data.src_port) { 3268 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", 3269 vf->vf_id); 3270 goto err; 3271 } 3272 } 3273 3274 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && 3275 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { 3276 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", 3277 vf->vf_id); 3278 goto err; 3279 } 3280 3281 if (mask.vlan_id & data.vlan_id) { 3282 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { 3283 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", 3284 vf->vf_id); 3285 goto err; 3286 } 3287 } 3288 3289 return I40E_SUCCESS; 3290 err: 3291 return I40E_ERR_CONFIG; 3292 } 3293 3294 /** 3295 * i40e_find_vsi_from_seid - searches for the vsi with the given seid 3296 * @vf: pointer to the VF info 3297 * @seid - seid of the vsi it is searching for 3298 **/ 3299 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) 3300 { 3301 struct i40e_pf *pf = vf->pf; 3302 struct i40e_vsi *vsi = NULL; 3303 int i; 3304 3305 for (i = 0; i < vf->num_tc ; i++) { 3306 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); 3307 if (vsi && vsi->seid == seid) 3308 return vsi; 3309 } 3310 return NULL; 3311 } 3312 3313 /** 3314 * i40e_del_all_cloud_filters 3315 * @vf: pointer to the VF info 3316 * 3317 * This function deletes all cloud filters 3318 **/ 3319 static void i40e_del_all_cloud_filters(struct i40e_vf *vf) 3320 { 3321 struct i40e_cloud_filter *cfilter = NULL; 3322 struct i40e_pf *pf = vf->pf; 3323 struct i40e_vsi *vsi = NULL; 3324 struct hlist_node *node; 3325 int ret; 3326 3327 hlist_for_each_entry_safe(cfilter, node, 3328 &vf->cloud_filter_list, cloud_node) { 3329 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); 3330 3331 if (!vsi) { 3332 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", 3333 vf->vf_id, cfilter->seid); 3334 continue; 3335 } 3336 3337 if (cfilter->dst_port) 3338 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, 3339 false); 3340 else 3341 ret = i40e_add_del_cloud_filter(vsi, cfilter, false); 3342 if (ret) 3343 dev_err(&pf->pdev->dev, 3344 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3345 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3346 i40e_aq_str(&pf->hw, 3347 pf->hw.aq.asq_last_status)); 3348 3349 hlist_del(&cfilter->cloud_node); 3350 kfree(cfilter); 3351 vf->num_cloud_filters--; 3352 } 3353 } 3354 3355 /** 3356 * i40e_vc_del_cloud_filter 3357 * @vf: pointer to the VF info 3358 * @msg: pointer to the msg buffer 3359 * 3360 * This function deletes a cloud filter programmed as TC filter for ADq 3361 **/ 3362 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) 3363 { 3364 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3365 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3366 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3367 struct i40e_cloud_filter cfilter, *cf = NULL; 3368 struct i40e_pf *pf = vf->pf; 3369 struct i40e_vsi *vsi = NULL; 3370 struct hlist_node *node; 3371 i40e_status aq_ret = 0; 3372 int i, ret; 3373 3374 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3375 aq_ret = I40E_ERR_PARAM; 3376 goto err; 3377 } 3378 3379 if (!vf->adq_enabled) { 3380 dev_info(&pf->pdev->dev, 3381 "VF %d: ADq not enabled, can't apply cloud filter\n", 3382 vf->vf_id); 3383 aq_ret = I40E_ERR_PARAM; 3384 goto err; 3385 } 3386 3387 if (i40e_validate_cloud_filter(vf, vcf)) { 3388 dev_info(&pf->pdev->dev, 3389 "VF %d: Invalid input, can't apply cloud filter\n", 3390 vf->vf_id); 3391 aq_ret = I40E_ERR_PARAM; 3392 goto err; 3393 } 3394 3395 memset(&cfilter, 0, sizeof(cfilter)); 3396 /* parse destination mac address */ 3397 for (i = 0; i < ETH_ALEN; i++) 3398 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3399 3400 /* parse source mac address */ 3401 for (i = 0; i < ETH_ALEN; i++) 3402 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3403 3404 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; 3405 cfilter.dst_port = mask.dst_port & tcf.dst_port; 3406 cfilter.src_port = mask.src_port & tcf.src_port; 3407 3408 switch (vcf->flow_type) { 3409 case VIRTCHNL_TCP_V4_FLOW: 3410 cfilter.n_proto = ETH_P_IP; 3411 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3412 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, 3413 ARRAY_SIZE(tcf.dst_ip)); 3414 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3415 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, 3416 ARRAY_SIZE(tcf.dst_ip)); 3417 break; 3418 case VIRTCHNL_TCP_V6_FLOW: 3419 cfilter.n_proto = ETH_P_IPV6; 3420 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3421 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, 3422 sizeof(cfilter.ip.v6.dst_ip6)); 3423 if (mask.src_ip[3] & tcf.src_ip[3]) 3424 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, 3425 sizeof(cfilter.ip.v6.src_ip6)); 3426 break; 3427 default: 3428 /* TC filter can be configured based on different combinations 3429 * and in this case IP is not a part of filter config 3430 */ 3431 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3432 vf->vf_id); 3433 } 3434 3435 /* get the vsi to which the tc belongs to */ 3436 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3437 cfilter.seid = vsi->seid; 3438 cfilter.flags = vcf->field_flags; 3439 3440 /* Deleting TC filter */ 3441 if (tcf.dst_port) 3442 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); 3443 else 3444 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); 3445 if (ret) { 3446 dev_err(&pf->pdev->dev, 3447 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", 3448 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3449 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3450 goto err; 3451 } 3452 3453 hlist_for_each_entry_safe(cf, node, 3454 &vf->cloud_filter_list, cloud_node) { 3455 if (cf->seid != cfilter.seid) 3456 continue; 3457 if (mask.dst_port) 3458 if (cfilter.dst_port != cf->dst_port) 3459 continue; 3460 if (mask.dst_mac[0]) 3461 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) 3462 continue; 3463 /* for ipv4 data to be valid, only first byte of mask is set */ 3464 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) 3465 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, 3466 ARRAY_SIZE(tcf.dst_ip))) 3467 continue; 3468 /* for ipv6, mask is set for all sixteen bytes (4 words) */ 3469 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) 3470 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, 3471 sizeof(cfilter.ip.v6.src_ip6))) 3472 continue; 3473 if (mask.vlan_id) 3474 if (cfilter.vlan_id != cf->vlan_id) 3475 continue; 3476 3477 hlist_del(&cf->cloud_node); 3478 kfree(cf); 3479 vf->num_cloud_filters--; 3480 } 3481 3482 err: 3483 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, 3484 aq_ret); 3485 } 3486 3487 /** 3488 * i40e_vc_add_cloud_filter 3489 * @vf: pointer to the VF info 3490 * @msg: pointer to the msg buffer 3491 * 3492 * This function adds a cloud filter programmed as TC filter for ADq 3493 **/ 3494 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) 3495 { 3496 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; 3497 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; 3498 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; 3499 struct i40e_cloud_filter *cfilter = NULL; 3500 struct i40e_pf *pf = vf->pf; 3501 struct i40e_vsi *vsi = NULL; 3502 i40e_status aq_ret = 0; 3503 int i, ret; 3504 3505 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3506 aq_ret = I40E_ERR_PARAM; 3507 goto err_out; 3508 } 3509 3510 if (!vf->adq_enabled) { 3511 dev_info(&pf->pdev->dev, 3512 "VF %d: ADq is not enabled, can't apply cloud filter\n", 3513 vf->vf_id); 3514 aq_ret = I40E_ERR_PARAM; 3515 goto err_out; 3516 } 3517 3518 if (i40e_validate_cloud_filter(vf, vcf)) { 3519 dev_info(&pf->pdev->dev, 3520 "VF %d: Invalid input/s, can't apply cloud filter\n", 3521 vf->vf_id); 3522 aq_ret = I40E_ERR_PARAM; 3523 goto err_out; 3524 } 3525 3526 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); 3527 if (!cfilter) 3528 return -ENOMEM; 3529 3530 /* parse destination mac address */ 3531 for (i = 0; i < ETH_ALEN; i++) 3532 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; 3533 3534 /* parse source mac address */ 3535 for (i = 0; i < ETH_ALEN; i++) 3536 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; 3537 3538 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; 3539 cfilter->dst_port = mask.dst_port & tcf.dst_port; 3540 cfilter->src_port = mask.src_port & tcf.src_port; 3541 3542 switch (vcf->flow_type) { 3543 case VIRTCHNL_TCP_V4_FLOW: 3544 cfilter->n_proto = ETH_P_IP; 3545 if (mask.dst_ip[0] & tcf.dst_ip[0]) 3546 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, 3547 ARRAY_SIZE(tcf.dst_ip)); 3548 else if (mask.src_ip[0] & tcf.dst_ip[0]) 3549 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, 3550 ARRAY_SIZE(tcf.dst_ip)); 3551 break; 3552 case VIRTCHNL_TCP_V6_FLOW: 3553 cfilter->n_proto = ETH_P_IPV6; 3554 if (mask.dst_ip[3] & tcf.dst_ip[3]) 3555 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, 3556 sizeof(cfilter->ip.v6.dst_ip6)); 3557 if (mask.src_ip[3] & tcf.src_ip[3]) 3558 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, 3559 sizeof(cfilter->ip.v6.src_ip6)); 3560 break; 3561 default: 3562 /* TC filter can be configured based on different combinations 3563 * and in this case IP is not a part of filter config 3564 */ 3565 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", 3566 vf->vf_id); 3567 } 3568 3569 /* get the VSI to which the TC belongs to */ 3570 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; 3571 cfilter->seid = vsi->seid; 3572 cfilter->flags = vcf->field_flags; 3573 3574 /* Adding cloud filter programmed as TC filter */ 3575 if (tcf.dst_port) 3576 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); 3577 else 3578 ret = i40e_add_del_cloud_filter(vsi, cfilter, true); 3579 if (ret) { 3580 dev_err(&pf->pdev->dev, 3581 "VF %d: Failed to add cloud filter, err %s aq_err %s\n", 3582 vf->vf_id, i40e_stat_str(&pf->hw, ret), 3583 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); 3584 goto err_free; 3585 } 3586 3587 INIT_HLIST_NODE(&cfilter->cloud_node); 3588 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); 3589 /* release the pointer passing it to the collection */ 3590 cfilter = NULL; 3591 vf->num_cloud_filters++; 3592 err_free: 3593 kfree(cfilter); 3594 err_out: 3595 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, 3596 aq_ret); 3597 } 3598 3599 /** 3600 * i40e_vc_add_qch_msg: Add queue channel and enable ADq 3601 * @vf: pointer to the VF info 3602 * @msg: pointer to the msg buffer 3603 **/ 3604 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) 3605 { 3606 struct virtchnl_tc_info *tci = 3607 (struct virtchnl_tc_info *)msg; 3608 struct i40e_pf *pf = vf->pf; 3609 struct i40e_link_status *ls = &pf->hw.phy.link_info; 3610 int i, adq_request_qps = 0; 3611 i40e_status aq_ret = 0; 3612 u64 speed = 0; 3613 3614 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3615 aq_ret = I40E_ERR_PARAM; 3616 goto err; 3617 } 3618 3619 /* ADq cannot be applied if spoof check is ON */ 3620 if (vf->spoofchk) { 3621 dev_err(&pf->pdev->dev, 3622 "Spoof check is ON, turn it OFF to enable ADq\n"); 3623 aq_ret = I40E_ERR_PARAM; 3624 goto err; 3625 } 3626 3627 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { 3628 dev_err(&pf->pdev->dev, 3629 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", 3630 vf->vf_id); 3631 aq_ret = I40E_ERR_PARAM; 3632 goto err; 3633 } 3634 3635 /* max number of traffic classes for VF currently capped at 4 */ 3636 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { 3637 dev_err(&pf->pdev->dev, 3638 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", 3639 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); 3640 aq_ret = I40E_ERR_PARAM; 3641 goto err; 3642 } 3643 3644 /* validate queues for each TC */ 3645 for (i = 0; i < tci->num_tc; i++) 3646 if (!tci->list[i].count || 3647 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { 3648 dev_err(&pf->pdev->dev, 3649 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", 3650 vf->vf_id, i, tci->list[i].count, 3651 I40E_DEFAULT_QUEUES_PER_VF); 3652 aq_ret = I40E_ERR_PARAM; 3653 goto err; 3654 } 3655 3656 /* need Max VF queues but already have default number of queues */ 3657 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; 3658 3659 if (pf->queues_left < adq_request_qps) { 3660 dev_err(&pf->pdev->dev, 3661 "No queues left to allocate to VF %d\n", 3662 vf->vf_id); 3663 aq_ret = I40E_ERR_PARAM; 3664 goto err; 3665 } else { 3666 /* we need to allocate max VF queues to enable ADq so as to 3667 * make sure ADq enabled VF always gets back queues when it 3668 * goes through a reset. 3669 */ 3670 vf->num_queue_pairs = I40E_MAX_VF_QUEUES; 3671 } 3672 3673 /* get link speed in MB to validate rate limit */ 3674 switch (ls->link_speed) { 3675 case VIRTCHNL_LINK_SPEED_100MB: 3676 speed = SPEED_100; 3677 break; 3678 case VIRTCHNL_LINK_SPEED_1GB: 3679 speed = SPEED_1000; 3680 break; 3681 case VIRTCHNL_LINK_SPEED_10GB: 3682 speed = SPEED_10000; 3683 break; 3684 case VIRTCHNL_LINK_SPEED_20GB: 3685 speed = SPEED_20000; 3686 break; 3687 case VIRTCHNL_LINK_SPEED_25GB: 3688 speed = SPEED_25000; 3689 break; 3690 case VIRTCHNL_LINK_SPEED_40GB: 3691 speed = SPEED_40000; 3692 break; 3693 default: 3694 dev_err(&pf->pdev->dev, 3695 "Cannot detect link speed\n"); 3696 aq_ret = I40E_ERR_PARAM; 3697 goto err; 3698 } 3699 3700 /* parse data from the queue channel info */ 3701 vf->num_tc = tci->num_tc; 3702 for (i = 0; i < vf->num_tc; i++) { 3703 if (tci->list[i].max_tx_rate) { 3704 if (tci->list[i].max_tx_rate > speed) { 3705 dev_err(&pf->pdev->dev, 3706 "Invalid max tx rate %llu specified for VF %d.", 3707 tci->list[i].max_tx_rate, 3708 vf->vf_id); 3709 aq_ret = I40E_ERR_PARAM; 3710 goto err; 3711 } else { 3712 vf->ch[i].max_tx_rate = 3713 tci->list[i].max_tx_rate; 3714 } 3715 } 3716 vf->ch[i].num_qps = tci->list[i].count; 3717 } 3718 3719 /* set this flag only after making sure all inputs are sane */ 3720 vf->adq_enabled = true; 3721 /* num_req_queues is set when user changes number of queues via ethtool 3722 * and this causes issue for default VSI(which depends on this variable) 3723 * when ADq is enabled, hence reset it. 3724 */ 3725 vf->num_req_queues = 0; 3726 3727 /* reset the VF in order to allocate resources */ 3728 i40e_vc_notify_vf_reset(vf); 3729 i40e_reset_vf(vf, false); 3730 3731 return I40E_SUCCESS; 3732 3733 /* send the response to the VF */ 3734 err: 3735 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, 3736 aq_ret); 3737 } 3738 3739 /** 3740 * i40e_vc_del_qch_msg 3741 * @vf: pointer to the VF info 3742 * @msg: pointer to the msg buffer 3743 **/ 3744 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) 3745 { 3746 struct i40e_pf *pf = vf->pf; 3747 i40e_status aq_ret = 0; 3748 3749 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 3750 aq_ret = I40E_ERR_PARAM; 3751 goto err; 3752 } 3753 3754 if (vf->adq_enabled) { 3755 i40e_del_all_cloud_filters(vf); 3756 i40e_del_qch(vf); 3757 vf->adq_enabled = false; 3758 vf->num_tc = 0; 3759 dev_info(&pf->pdev->dev, 3760 "Deleting Queue Channels and cloud filters for ADq on VF %d\n", 3761 vf->vf_id); 3762 } else { 3763 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", 3764 vf->vf_id); 3765 aq_ret = I40E_ERR_PARAM; 3766 } 3767 3768 /* reset the VF in order to allocate resources */ 3769 i40e_vc_notify_vf_reset(vf); 3770 i40e_reset_vf(vf, false); 3771 3772 return I40E_SUCCESS; 3773 3774 err: 3775 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, 3776 aq_ret); 3777 } 3778 3779 /** 3780 * i40e_vc_process_vf_msg 3781 * @pf: pointer to the PF structure 3782 * @vf_id: source VF id 3783 * @v_opcode: operation code 3784 * @v_retval: unused return value code 3785 * @msg: pointer to the msg buffer 3786 * @msglen: msg length 3787 * 3788 * called from the common aeq/arq handler to 3789 * process request from VF 3790 **/ 3791 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 3792 u32 __always_unused v_retval, u8 *msg, u16 msglen) 3793 { 3794 struct i40e_hw *hw = &pf->hw; 3795 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 3796 struct i40e_vf *vf; 3797 int ret; 3798 3799 pf->vf_aq_requests++; 3800 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) 3801 return -EINVAL; 3802 vf = &(pf->vf[local_vf_id]); 3803 3804 /* Check if VF is disabled. */ 3805 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 3806 return I40E_ERR_PARAM; 3807 3808 /* perform basic checks on the msg */ 3809 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); 3810 3811 if (ret) { 3812 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 3813 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 3814 local_vf_id, v_opcode, msglen); 3815 switch (ret) { 3816 case VIRTCHNL_STATUS_ERR_PARAM: 3817 return -EPERM; 3818 default: 3819 return -EINVAL; 3820 } 3821 } 3822 3823 switch (v_opcode) { 3824 case VIRTCHNL_OP_VERSION: 3825 ret = i40e_vc_get_version_msg(vf, msg); 3826 break; 3827 case VIRTCHNL_OP_GET_VF_RESOURCES: 3828 ret = i40e_vc_get_vf_resources_msg(vf, msg); 3829 i40e_vc_notify_vf_link_state(vf); 3830 break; 3831 case VIRTCHNL_OP_RESET_VF: 3832 i40e_vc_reset_vf_msg(vf); 3833 ret = 0; 3834 break; 3835 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 3836 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); 3837 break; 3838 case VIRTCHNL_OP_CONFIG_VSI_QUEUES: 3839 ret = i40e_vc_config_queues_msg(vf, msg); 3840 break; 3841 case VIRTCHNL_OP_CONFIG_IRQ_MAP: 3842 ret = i40e_vc_config_irq_map_msg(vf, msg); 3843 break; 3844 case VIRTCHNL_OP_ENABLE_QUEUES: 3845 ret = i40e_vc_enable_queues_msg(vf, msg); 3846 i40e_vc_notify_vf_link_state(vf); 3847 break; 3848 case VIRTCHNL_OP_DISABLE_QUEUES: 3849 ret = i40e_vc_disable_queues_msg(vf, msg); 3850 break; 3851 case VIRTCHNL_OP_ADD_ETH_ADDR: 3852 ret = i40e_vc_add_mac_addr_msg(vf, msg); 3853 break; 3854 case VIRTCHNL_OP_DEL_ETH_ADDR: 3855 ret = i40e_vc_del_mac_addr_msg(vf, msg); 3856 break; 3857 case VIRTCHNL_OP_ADD_VLAN: 3858 ret = i40e_vc_add_vlan_msg(vf, msg); 3859 break; 3860 case VIRTCHNL_OP_DEL_VLAN: 3861 ret = i40e_vc_remove_vlan_msg(vf, msg); 3862 break; 3863 case VIRTCHNL_OP_GET_STATS: 3864 ret = i40e_vc_get_stats_msg(vf, msg); 3865 break; 3866 case VIRTCHNL_OP_IWARP: 3867 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 3868 break; 3869 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 3870 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); 3871 break; 3872 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 3873 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); 3874 break; 3875 case VIRTCHNL_OP_CONFIG_RSS_KEY: 3876 ret = i40e_vc_config_rss_key(vf, msg); 3877 break; 3878 case VIRTCHNL_OP_CONFIG_RSS_LUT: 3879 ret = i40e_vc_config_rss_lut(vf, msg); 3880 break; 3881 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: 3882 ret = i40e_vc_get_rss_hena(vf, msg); 3883 break; 3884 case VIRTCHNL_OP_SET_RSS_HENA: 3885 ret = i40e_vc_set_rss_hena(vf, msg); 3886 break; 3887 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: 3888 ret = i40e_vc_enable_vlan_stripping(vf, msg); 3889 break; 3890 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: 3891 ret = i40e_vc_disable_vlan_stripping(vf, msg); 3892 break; 3893 case VIRTCHNL_OP_REQUEST_QUEUES: 3894 ret = i40e_vc_request_queues_msg(vf, msg); 3895 break; 3896 case VIRTCHNL_OP_ENABLE_CHANNELS: 3897 ret = i40e_vc_add_qch_msg(vf, msg); 3898 break; 3899 case VIRTCHNL_OP_DISABLE_CHANNELS: 3900 ret = i40e_vc_del_qch_msg(vf, msg); 3901 break; 3902 case VIRTCHNL_OP_ADD_CLOUD_FILTER: 3903 ret = i40e_vc_add_cloud_filter(vf, msg); 3904 break; 3905 case VIRTCHNL_OP_DEL_CLOUD_FILTER: 3906 ret = i40e_vc_del_cloud_filter(vf, msg); 3907 break; 3908 case VIRTCHNL_OP_UNKNOWN: 3909 default: 3910 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 3911 v_opcode, local_vf_id); 3912 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 3913 I40E_ERR_NOT_IMPLEMENTED); 3914 break; 3915 } 3916 3917 return ret; 3918 } 3919 3920 /** 3921 * i40e_vc_process_vflr_event 3922 * @pf: pointer to the PF structure 3923 * 3924 * called from the vlfr irq handler to 3925 * free up VF resources and state variables 3926 **/ 3927 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 3928 { 3929 struct i40e_hw *hw = &pf->hw; 3930 u32 reg, reg_idx, bit_idx; 3931 struct i40e_vf *vf; 3932 int vf_id; 3933 3934 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 3935 return 0; 3936 3937 /* Re-enable the VFLR interrupt cause here, before looking for which 3938 * VF got reset. Otherwise, if another VF gets a reset while the 3939 * first one is being processed, that interrupt will be lost, and 3940 * that VF will be stuck in reset forever. 3941 */ 3942 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 3943 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 3944 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 3945 i40e_flush(hw); 3946 3947 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 3948 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 3949 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 3950 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 3951 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 3952 vf = &pf->vf[vf_id]; 3953 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 3954 if (reg & BIT(bit_idx)) 3955 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 3956 i40e_reset_vf(vf, true); 3957 } 3958 3959 return 0; 3960 } 3961 3962 /** 3963 * i40e_validate_vf 3964 * @pf: the physical function 3965 * @vf_id: VF identifier 3966 * 3967 * Check that the VF is enabled and the VSI exists. 3968 * 3969 * Returns 0 on success, negative on failure 3970 **/ 3971 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) 3972 { 3973 struct i40e_vsi *vsi; 3974 struct i40e_vf *vf; 3975 int ret = 0; 3976 3977 if (vf_id >= pf->num_alloc_vfs) { 3978 dev_err(&pf->pdev->dev, 3979 "Invalid VF Identifier %d\n", vf_id); 3980 ret = -EINVAL; 3981 goto err_out; 3982 } 3983 vf = &pf->vf[vf_id]; 3984 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); 3985 if (!vsi) 3986 ret = -EINVAL; 3987 err_out: 3988 return ret; 3989 } 3990 3991 /** 3992 * i40e_ndo_set_vf_mac 3993 * @netdev: network interface device structure 3994 * @vf_id: VF identifier 3995 * @mac: mac address 3996 * 3997 * program VF mac address 3998 **/ 3999 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 4000 { 4001 struct i40e_netdev_priv *np = netdev_priv(netdev); 4002 struct i40e_vsi *vsi = np->vsi; 4003 struct i40e_pf *pf = vsi->back; 4004 struct i40e_mac_filter *f; 4005 struct i40e_vf *vf; 4006 int ret = 0; 4007 struct hlist_node *h; 4008 int bkt; 4009 u8 i; 4010 4011 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4012 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4013 return -EAGAIN; 4014 } 4015 4016 /* validate the request */ 4017 ret = i40e_validate_vf(pf, vf_id); 4018 if (ret) 4019 goto error_param; 4020 4021 vf = &pf->vf[vf_id]; 4022 vsi = pf->vsi[vf->lan_vsi_idx]; 4023 4024 /* When the VF is resetting wait until it is done. 4025 * It can take up to 200 milliseconds, 4026 * but wait for up to 300 milliseconds to be safe. 4027 * If the VF is indeed in reset, the vsi pointer has 4028 * to show on the newly loaded vsi under pf->vsi[id]. 4029 */ 4030 for (i = 0; i < 15; i++) { 4031 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4032 if (i > 0) 4033 vsi = pf->vsi[vf->lan_vsi_idx]; 4034 break; 4035 } 4036 msleep(20); 4037 } 4038 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4039 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4040 vf_id); 4041 ret = -EAGAIN; 4042 goto error_param; 4043 } 4044 4045 if (is_multicast_ether_addr(mac)) { 4046 dev_err(&pf->pdev->dev, 4047 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 4048 ret = -EINVAL; 4049 goto error_param; 4050 } 4051 4052 /* Lock once because below invoked function add/del_filter requires 4053 * mac_filter_hash_lock to be held 4054 */ 4055 spin_lock_bh(&vsi->mac_filter_hash_lock); 4056 4057 /* delete the temporary mac address */ 4058 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 4059 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 4060 4061 /* Delete all the filters for this VSI - we're going to kill it 4062 * anyway. 4063 */ 4064 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) 4065 __i40e_del_filter(vsi, f); 4066 4067 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4068 4069 /* program mac filter */ 4070 if (i40e_sync_vsi_filters(vsi)) { 4071 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 4072 ret = -EIO; 4073 goto error_param; 4074 } 4075 ether_addr_copy(vf->default_lan_addr.addr, mac); 4076 4077 if (is_zero_ether_addr(mac)) { 4078 vf->pf_set_mac = false; 4079 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); 4080 } else { 4081 vf->pf_set_mac = true; 4082 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", 4083 mac, vf_id); 4084 } 4085 4086 /* Force the VF interface down so it has to bring up with new MAC 4087 * address 4088 */ 4089 i40e_vc_disable_vf(vf); 4090 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); 4091 4092 error_param: 4093 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4094 return ret; 4095 } 4096 4097 /** 4098 * i40e_vsi_has_vlans - True if VSI has configured VLANs 4099 * @vsi: pointer to the vsi 4100 * 4101 * Check if a VSI has configured any VLANs. False if we have a port VLAN or if 4102 * we have no configured VLANs. Do not call while holding the 4103 * mac_filter_hash_lock. 4104 */ 4105 static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi) 4106 { 4107 bool have_vlans; 4108 4109 /* If we have a port VLAN, then the VSI cannot have any VLANs 4110 * configured, as all MAC/VLAN filters will be assigned to the PVID. 4111 */ 4112 if (vsi->info.pvid) 4113 return false; 4114 4115 /* Since we don't have a PVID, we know that if the device is in VLAN 4116 * mode it must be because of a VLAN filter configured on this VSI. 4117 */ 4118 spin_lock_bh(&vsi->mac_filter_hash_lock); 4119 have_vlans = i40e_is_vsi_in_vlan(vsi); 4120 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4121 4122 return have_vlans; 4123 } 4124 4125 /** 4126 * i40e_ndo_set_vf_port_vlan 4127 * @netdev: network interface device structure 4128 * @vf_id: VF identifier 4129 * @vlan_id: mac address 4130 * @qos: priority setting 4131 * @vlan_proto: vlan protocol 4132 * 4133 * program VF vlan id and/or qos 4134 **/ 4135 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 4136 u16 vlan_id, u8 qos, __be16 vlan_proto) 4137 { 4138 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 4139 struct i40e_netdev_priv *np = netdev_priv(netdev); 4140 bool allmulti = false, alluni = false; 4141 struct i40e_pf *pf = np->vsi->back; 4142 struct i40e_vsi *vsi; 4143 struct i40e_vf *vf; 4144 int ret = 0; 4145 4146 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4147 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4148 return -EAGAIN; 4149 } 4150 4151 /* validate the request */ 4152 ret = i40e_validate_vf(pf, vf_id); 4153 if (ret) 4154 goto error_pvid; 4155 4156 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 4157 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 4158 ret = -EINVAL; 4159 goto error_pvid; 4160 } 4161 4162 if (vlan_proto != htons(ETH_P_8021Q)) { 4163 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 4164 ret = -EPROTONOSUPPORT; 4165 goto error_pvid; 4166 } 4167 4168 vf = &pf->vf[vf_id]; 4169 vsi = pf->vsi[vf->lan_vsi_idx]; 4170 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4171 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4172 vf_id); 4173 ret = -EAGAIN; 4174 goto error_pvid; 4175 } 4176 4177 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 4178 /* duplicate request, so just return success */ 4179 goto error_pvid; 4180 4181 if (i40e_vsi_has_vlans(vsi)) { 4182 dev_err(&pf->pdev->dev, 4183 "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", 4184 vf_id); 4185 /* Administrator Error - knock the VF offline until he does 4186 * the right thing by reconfiguring his network correctly 4187 * and then reloading the VF driver. 4188 */ 4189 i40e_vc_disable_vf(vf); 4190 /* During reset the VF got a new VSI, so refresh the pointer. */ 4191 vsi = pf->vsi[vf->lan_vsi_idx]; 4192 } 4193 4194 /* Locked once because multiple functions below iterate list */ 4195 spin_lock_bh(&vsi->mac_filter_hash_lock); 4196 4197 /* Check for condition where there was already a port VLAN ID 4198 * filter set and now it is being deleted by setting it to zero. 4199 * Additionally check for the condition where there was a port 4200 * VLAN but now there is a new and different port VLAN being set. 4201 * Before deleting all the old VLAN filters we must add new ones 4202 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 4203 * MAC addresses deleted. 4204 */ 4205 if ((!(vlan_id || qos) || 4206 vlanprio != le16_to_cpu(vsi->info.pvid)) && 4207 vsi->info.pvid) { 4208 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 4209 if (ret) { 4210 dev_info(&vsi->back->pdev->dev, 4211 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4212 vsi->back->hw.aq.asq_last_status); 4213 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4214 goto error_pvid; 4215 } 4216 } 4217 4218 if (vsi->info.pvid) { 4219 /* remove all filters on the old VLAN */ 4220 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 4221 VLAN_VID_MASK)); 4222 } 4223 4224 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4225 4226 /* disable promisc modes in case they were enabled */ 4227 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, 4228 allmulti, alluni); 4229 if (ret) { 4230 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); 4231 goto error_pvid; 4232 } 4233 4234 if (vlan_id || qos) 4235 ret = i40e_vsi_add_pvid(vsi, vlanprio); 4236 else 4237 i40e_vsi_remove_pvid(vsi); 4238 spin_lock_bh(&vsi->mac_filter_hash_lock); 4239 4240 if (vlan_id) { 4241 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 4242 vlan_id, qos, vf_id); 4243 4244 /* add new VLAN filter for each MAC */ 4245 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 4246 if (ret) { 4247 dev_info(&vsi->back->pdev->dev, 4248 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 4249 vsi->back->hw.aq.asq_last_status); 4250 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4251 goto error_pvid; 4252 } 4253 4254 /* remove the previously added non-VLAN MAC filters */ 4255 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 4256 } 4257 4258 spin_unlock_bh(&vsi->mac_filter_hash_lock); 4259 4260 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 4261 alluni = true; 4262 4263 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 4264 allmulti = true; 4265 4266 /* Schedule the worker thread to take care of applying changes */ 4267 i40e_service_event_schedule(vsi->back); 4268 4269 if (ret) { 4270 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 4271 goto error_pvid; 4272 } 4273 4274 /* The Port VLAN needs to be saved across resets the same as the 4275 * default LAN MAC address. 4276 */ 4277 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 4278 4279 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); 4280 if (ret) { 4281 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); 4282 goto error_pvid; 4283 } 4284 4285 ret = 0; 4286 4287 error_pvid: 4288 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4289 return ret; 4290 } 4291 4292 /** 4293 * i40e_ndo_set_vf_bw 4294 * @netdev: network interface device structure 4295 * @vf_id: VF identifier 4296 * @min_tx_rate: Minimum Tx rate 4297 * @max_tx_rate: Maximum Tx rate 4298 * 4299 * configure VF Tx rate 4300 **/ 4301 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 4302 int max_tx_rate) 4303 { 4304 struct i40e_netdev_priv *np = netdev_priv(netdev); 4305 struct i40e_pf *pf = np->vsi->back; 4306 struct i40e_vsi *vsi; 4307 struct i40e_vf *vf; 4308 int ret = 0; 4309 4310 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4311 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4312 return -EAGAIN; 4313 } 4314 4315 /* validate the request */ 4316 ret = i40e_validate_vf(pf, vf_id); 4317 if (ret) 4318 goto error; 4319 4320 if (min_tx_rate) { 4321 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 4322 min_tx_rate, vf_id); 4323 ret = -EINVAL; 4324 goto error; 4325 } 4326 4327 vf = &pf->vf[vf_id]; 4328 vsi = pf->vsi[vf->lan_vsi_idx]; 4329 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4330 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4331 vf_id); 4332 ret = -EAGAIN; 4333 goto error; 4334 } 4335 4336 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); 4337 if (ret) 4338 goto error; 4339 4340 vf->tx_rate = max_tx_rate; 4341 error: 4342 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4343 return ret; 4344 } 4345 4346 /** 4347 * i40e_ndo_get_vf_config 4348 * @netdev: network interface device structure 4349 * @vf_id: VF identifier 4350 * @ivi: VF configuration structure 4351 * 4352 * return VF configuration 4353 **/ 4354 int i40e_ndo_get_vf_config(struct net_device *netdev, 4355 int vf_id, struct ifla_vf_info *ivi) 4356 { 4357 struct i40e_netdev_priv *np = netdev_priv(netdev); 4358 struct i40e_vsi *vsi = np->vsi; 4359 struct i40e_pf *pf = vsi->back; 4360 struct i40e_vf *vf; 4361 int ret = 0; 4362 4363 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4364 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4365 return -EAGAIN; 4366 } 4367 4368 /* validate the request */ 4369 ret = i40e_validate_vf(pf, vf_id); 4370 if (ret) 4371 goto error_param; 4372 4373 vf = &pf->vf[vf_id]; 4374 /* first vsi is always the LAN vsi */ 4375 vsi = pf->vsi[vf->lan_vsi_idx]; 4376 if (!vsi) { 4377 ret = -ENOENT; 4378 goto error_param; 4379 } 4380 4381 ivi->vf = vf_id; 4382 4383 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 4384 4385 ivi->max_tx_rate = vf->tx_rate; 4386 ivi->min_tx_rate = 0; 4387 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 4388 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 4389 I40E_VLAN_PRIORITY_SHIFT; 4390 if (vf->link_forced == false) 4391 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 4392 else if (vf->link_up == true) 4393 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 4394 else 4395 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 4396 ivi->spoofchk = vf->spoofchk; 4397 ivi->trusted = vf->trusted; 4398 ret = 0; 4399 4400 error_param: 4401 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4402 return ret; 4403 } 4404 4405 /** 4406 * i40e_ndo_set_vf_link_state 4407 * @netdev: network interface device structure 4408 * @vf_id: VF identifier 4409 * @link: required link state 4410 * 4411 * Set the link state of a specified VF, regardless of physical link state 4412 **/ 4413 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 4414 { 4415 struct i40e_netdev_priv *np = netdev_priv(netdev); 4416 struct i40e_pf *pf = np->vsi->back; 4417 struct virtchnl_pf_event pfe; 4418 struct i40e_hw *hw = &pf->hw; 4419 struct i40e_vf *vf; 4420 int abs_vf_id; 4421 int ret = 0; 4422 4423 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4424 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4425 return -EAGAIN; 4426 } 4427 4428 /* validate the request */ 4429 if (vf_id >= pf->num_alloc_vfs) { 4430 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4431 ret = -EINVAL; 4432 goto error_out; 4433 } 4434 4435 vf = &pf->vf[vf_id]; 4436 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 4437 4438 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; 4439 pfe.severity = PF_EVENT_SEVERITY_INFO; 4440 4441 switch (link) { 4442 case IFLA_VF_LINK_STATE_AUTO: 4443 vf->link_forced = false; 4444 pfe.event_data.link_event.link_status = 4445 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 4446 pfe.event_data.link_event.link_speed = 4447 (enum virtchnl_link_speed) 4448 pf->hw.phy.link_info.link_speed; 4449 break; 4450 case IFLA_VF_LINK_STATE_ENABLE: 4451 vf->link_forced = true; 4452 vf->link_up = true; 4453 pfe.event_data.link_event.link_status = true; 4454 pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB; 4455 break; 4456 case IFLA_VF_LINK_STATE_DISABLE: 4457 vf->link_forced = true; 4458 vf->link_up = false; 4459 pfe.event_data.link_event.link_status = false; 4460 pfe.event_data.link_event.link_speed = 0; 4461 break; 4462 default: 4463 ret = -EINVAL; 4464 goto error_out; 4465 } 4466 /* Notify the VF of its new link state */ 4467 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, 4468 0, (u8 *)&pfe, sizeof(pfe), NULL); 4469 4470 error_out: 4471 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4472 return ret; 4473 } 4474 4475 /** 4476 * i40e_ndo_set_vf_spoofchk 4477 * @netdev: network interface device structure 4478 * @vf_id: VF identifier 4479 * @enable: flag to enable or disable feature 4480 * 4481 * Enable or disable VF spoof checking 4482 **/ 4483 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 4484 { 4485 struct i40e_netdev_priv *np = netdev_priv(netdev); 4486 struct i40e_vsi *vsi = np->vsi; 4487 struct i40e_pf *pf = vsi->back; 4488 struct i40e_vsi_context ctxt; 4489 struct i40e_hw *hw = &pf->hw; 4490 struct i40e_vf *vf; 4491 int ret = 0; 4492 4493 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4494 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4495 return -EAGAIN; 4496 } 4497 4498 /* validate the request */ 4499 if (vf_id >= pf->num_alloc_vfs) { 4500 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4501 ret = -EINVAL; 4502 goto out; 4503 } 4504 4505 vf = &(pf->vf[vf_id]); 4506 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4507 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 4508 vf_id); 4509 ret = -EAGAIN; 4510 goto out; 4511 } 4512 4513 if (enable == vf->spoofchk) 4514 goto out; 4515 4516 vf->spoofchk = enable; 4517 memset(&ctxt, 0, sizeof(ctxt)); 4518 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 4519 ctxt.pf_num = pf->hw.pf_id; 4520 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 4521 if (enable) 4522 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 4523 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 4524 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 4525 if (ret) { 4526 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 4527 ret); 4528 ret = -EIO; 4529 } 4530 out: 4531 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4532 return ret; 4533 } 4534 4535 /** 4536 * i40e_ndo_set_vf_trust 4537 * @netdev: network interface device structure of the pf 4538 * @vf_id: VF identifier 4539 * @setting: trust setting 4540 * 4541 * Enable or disable VF trust setting 4542 **/ 4543 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 4544 { 4545 struct i40e_netdev_priv *np = netdev_priv(netdev); 4546 struct i40e_pf *pf = np->vsi->back; 4547 struct i40e_vf *vf; 4548 int ret = 0; 4549 4550 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { 4551 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); 4552 return -EAGAIN; 4553 } 4554 4555 /* validate the request */ 4556 if (vf_id >= pf->num_alloc_vfs) { 4557 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 4558 ret = -EINVAL; 4559 goto out; 4560 } 4561 4562 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4563 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 4564 ret = -EINVAL; 4565 goto out; 4566 } 4567 4568 vf = &pf->vf[vf_id]; 4569 4570 if (setting == vf->trusted) 4571 goto out; 4572 4573 vf->trusted = setting; 4574 i40e_vc_disable_vf(vf); 4575 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 4576 vf_id, setting ? "" : "un"); 4577 4578 if (vf->adq_enabled) { 4579 if (!vf->trusted) { 4580 dev_info(&pf->pdev->dev, 4581 "VF %u no longer Trusted, deleting all cloud filters\n", 4582 vf_id); 4583 i40e_del_all_cloud_filters(vf); 4584 } 4585 } 4586 4587 out: 4588 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); 4589 return ret; 4590 } 4591 4592 /** 4593 * i40e_get_vf_stats - populate some stats for the VF 4594 * @netdev: the netdev of the PF 4595 * @vf_id: the host OS identifier (0-127) 4596 * @vf_stats: pointer to the OS memory to be initialized 4597 */ 4598 int i40e_get_vf_stats(struct net_device *netdev, int vf_id, 4599 struct ifla_vf_stats *vf_stats) 4600 { 4601 struct i40e_netdev_priv *np = netdev_priv(netdev); 4602 struct i40e_pf *pf = np->vsi->back; 4603 struct i40e_eth_stats *stats; 4604 struct i40e_vsi *vsi; 4605 struct i40e_vf *vf; 4606 4607 /* validate the request */ 4608 if (i40e_validate_vf(pf, vf_id)) 4609 return -EINVAL; 4610 4611 vf = &pf->vf[vf_id]; 4612 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 4613 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); 4614 return -EBUSY; 4615 } 4616 4617 vsi = pf->vsi[vf->lan_vsi_idx]; 4618 if (!vsi) 4619 return -EINVAL; 4620 4621 i40e_update_eth_stats(vsi); 4622 stats = &vsi->eth_stats; 4623 4624 memset(vf_stats, 0, sizeof(*vf_stats)); 4625 4626 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + 4627 stats->rx_multicast; 4628 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + 4629 stats->tx_multicast; 4630 vf_stats->rx_bytes = stats->rx_bytes; 4631 vf_stats->tx_bytes = stats->tx_bytes; 4632 vf_stats->broadcast = stats->rx_broadcast; 4633 vf_stats->multicast = stats->rx_multicast; 4634 vf_stats->rx_dropped = stats->rx_discards; 4635 vf_stats->tx_dropped = stats->tx_discards; 4636 4637 return 0; 4638 } 4639