1 /******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 - 2016 Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 * The full GNU General Public License is included in this distribution in 19 * the file called "COPYING". 20 * 21 * Contact Information: 22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 24 * 25 ******************************************************************************/ 26 27 #include "i40e.h" 28 29 /*********************notification routines***********************/ 30 31 /** 32 * i40e_vc_vf_broadcast 33 * @pf: pointer to the PF structure 34 * @opcode: operation code 35 * @retval: return value 36 * @msg: pointer to the msg buffer 37 * @msglen: msg length 38 * 39 * send a message to all VFs on a given PF 40 **/ 41 static void i40e_vc_vf_broadcast(struct i40e_pf *pf, 42 enum i40e_virtchnl_ops v_opcode, 43 i40e_status v_retval, u8 *msg, 44 u16 msglen) 45 { 46 struct i40e_hw *hw = &pf->hw; 47 struct i40e_vf *vf = pf->vf; 48 int i; 49 50 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { 51 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 52 /* Not all vfs are enabled so skip the ones that are not */ 53 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 54 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 55 continue; 56 57 /* Ignore return value on purpose - a given VF may fail, but 58 * we need to keep going and send to all of them 59 */ 60 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 61 msg, msglen, NULL); 62 } 63 } 64 65 /** 66 * i40e_vc_notify_vf_link_state 67 * @vf: pointer to the VF structure 68 * 69 * send a link status message to a single VF 70 **/ 71 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) 72 { 73 struct i40e_virtchnl_pf_event pfe; 74 struct i40e_pf *pf = vf->pf; 75 struct i40e_hw *hw = &pf->hw; 76 struct i40e_link_status *ls = &pf->hw.phy.link_info; 77 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; 78 79 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; 80 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; 81 if (vf->link_forced) { 82 pfe.event_data.link_event.link_status = vf->link_up; 83 pfe.event_data.link_event.link_speed = 84 (vf->link_up ? I40E_LINK_SPEED_40GB : 0); 85 } else { 86 pfe.event_data.link_event.link_status = 87 ls->link_info & I40E_AQ_LINK_UP; 88 pfe.event_data.link_event.link_speed = ls->link_speed; 89 } 90 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 91 0, (u8 *)&pfe, sizeof(pfe), NULL); 92 } 93 94 /** 95 * i40e_vc_notify_link_state 96 * @pf: pointer to the PF structure 97 * 98 * send a link status message to all VFs on a given PF 99 **/ 100 void i40e_vc_notify_link_state(struct i40e_pf *pf) 101 { 102 int i; 103 104 for (i = 0; i < pf->num_alloc_vfs; i++) 105 i40e_vc_notify_vf_link_state(&pf->vf[i]); 106 } 107 108 /** 109 * i40e_vc_notify_reset 110 * @pf: pointer to the PF structure 111 * 112 * indicate a pending reset to all VFs on a given PF 113 **/ 114 void i40e_vc_notify_reset(struct i40e_pf *pf) 115 { 116 struct i40e_virtchnl_pf_event pfe; 117 118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; 119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; 120 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0, 121 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event)); 122 } 123 124 /** 125 * i40e_vc_notify_vf_reset 126 * @vf: pointer to the VF structure 127 * 128 * indicate a pending reset to the given VF 129 **/ 130 void i40e_vc_notify_vf_reset(struct i40e_vf *vf) 131 { 132 struct i40e_virtchnl_pf_event pfe; 133 int abs_vf_id; 134 135 /* validate the request */ 136 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 137 return; 138 139 /* verify if the VF is in either init or active before proceeding */ 140 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && 141 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 142 return; 143 144 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; 145 146 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING; 147 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM; 148 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 149 0, (u8 *)&pfe, 150 sizeof(struct i40e_virtchnl_pf_event), NULL); 151 } 152 /***********************misc routines*****************************/ 153 154 /** 155 * i40e_vc_disable_vf 156 * @pf: pointer to the PF info 157 * @vf: pointer to the VF info 158 * 159 * Disable the VF through a SW reset 160 **/ 161 static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf) 162 { 163 i40e_vc_notify_vf_reset(vf); 164 i40e_reset_vf(vf, false); 165 } 166 167 /** 168 * i40e_vc_isvalid_vsi_id 169 * @vf: pointer to the VF info 170 * @vsi_id: VF relative VSI id 171 * 172 * check for the valid VSI id 173 **/ 174 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) 175 { 176 struct i40e_pf *pf = vf->pf; 177 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 178 179 return (vsi && (vsi->vf_id == vf->vf_id)); 180 } 181 182 /** 183 * i40e_vc_isvalid_queue_id 184 * @vf: pointer to the VF info 185 * @vsi_id: vsi id 186 * @qid: vsi relative queue id 187 * 188 * check for the valid queue id 189 **/ 190 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, 191 u8 qid) 192 { 193 struct i40e_pf *pf = vf->pf; 194 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 195 196 return (vsi && (qid < vsi->alloc_queue_pairs)); 197 } 198 199 /** 200 * i40e_vc_isvalid_vector_id 201 * @vf: pointer to the VF info 202 * @vector_id: VF relative vector id 203 * 204 * check for the valid vector id 205 **/ 206 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id) 207 { 208 struct i40e_pf *pf = vf->pf; 209 210 return vector_id < pf->hw.func_caps.num_msix_vectors_vf; 211 } 212 213 /***********************vf resource mgmt routines*****************/ 214 215 /** 216 * i40e_vc_get_pf_queue_id 217 * @vf: pointer to the VF info 218 * @vsi_id: id of VSI as provided by the FW 219 * @vsi_queue_id: vsi relative queue id 220 * 221 * return PF relative queue id 222 **/ 223 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, 224 u8 vsi_queue_id) 225 { 226 struct i40e_pf *pf = vf->pf; 227 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); 228 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; 229 230 if (!vsi) 231 return pf_queue_id; 232 233 if (le16_to_cpu(vsi->info.mapping_flags) & 234 I40E_AQ_VSI_QUE_MAP_NONCONTIG) 235 pf_queue_id = 236 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); 237 else 238 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + 239 vsi_queue_id; 240 241 return pf_queue_id; 242 } 243 244 /** 245 * i40e_config_irq_link_list 246 * @vf: pointer to the VF info 247 * @vsi_id: id of VSI as given by the FW 248 * @vecmap: irq map info 249 * 250 * configure irq link list from the map 251 **/ 252 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, 253 struct i40e_virtchnl_vector_map *vecmap) 254 { 255 unsigned long linklistmap = 0, tempmap; 256 struct i40e_pf *pf = vf->pf; 257 struct i40e_hw *hw = &pf->hw; 258 u16 vsi_queue_id, pf_queue_id; 259 enum i40e_queue_type qtype; 260 u16 next_q, vector_id; 261 u32 reg, reg_idx; 262 u16 itr_idx = 0; 263 264 vector_id = vecmap->vector_id; 265 /* setup the head */ 266 if (0 == vector_id) 267 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 268 else 269 reg_idx = I40E_VPINT_LNKLSTN( 270 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + 271 (vector_id - 1)); 272 273 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { 274 /* Special case - No queues mapped on this vector */ 275 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); 276 goto irq_list_done; 277 } 278 tempmap = vecmap->rxq_map; 279 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 280 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 281 vsi_queue_id)); 282 } 283 284 tempmap = vecmap->txq_map; 285 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 286 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * 287 vsi_queue_id + 1)); 288 } 289 290 next_q = find_first_bit(&linklistmap, 291 (I40E_MAX_VSI_QP * 292 I40E_VIRTCHNL_SUPPORTED_QTYPES)); 293 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 294 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 295 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 296 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); 297 298 wr32(hw, reg_idx, reg); 299 300 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { 301 switch (qtype) { 302 case I40E_QUEUE_TYPE_RX: 303 reg_idx = I40E_QINT_RQCTL(pf_queue_id); 304 itr_idx = vecmap->rxitr_idx; 305 break; 306 case I40E_QUEUE_TYPE_TX: 307 reg_idx = I40E_QINT_TQCTL(pf_queue_id); 308 itr_idx = vecmap->txitr_idx; 309 break; 310 default: 311 break; 312 } 313 314 next_q = find_next_bit(&linklistmap, 315 (I40E_MAX_VSI_QP * 316 I40E_VIRTCHNL_SUPPORTED_QTYPES), 317 next_q + 1); 318 if (next_q < 319 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) { 320 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; 321 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; 322 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, 323 vsi_queue_id); 324 } else { 325 pf_queue_id = I40E_QUEUE_END_OF_LIST; 326 qtype = 0; 327 } 328 329 /* format for the RQCTL & TQCTL regs is same */ 330 reg = (vector_id) | 331 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | 332 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | 333 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | 334 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); 335 wr32(hw, reg_idx, reg); 336 } 337 338 /* if the vf is running in polling mode and using interrupt zero, 339 * need to disable auto-mask on enabling zero interrupt for VFs. 340 */ 341 if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) && 342 (vector_id == 0)) { 343 reg = rd32(hw, I40E_GLINT_CTL); 344 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { 345 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; 346 wr32(hw, I40E_GLINT_CTL, reg); 347 } 348 } 349 350 irq_list_done: 351 i40e_flush(hw); 352 } 353 354 /** 355 * i40e_release_iwarp_qvlist 356 * @vf: pointer to the VF. 357 * 358 **/ 359 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) 360 { 361 struct i40e_pf *pf = vf->pf; 362 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; 363 u32 msix_vf; 364 u32 i; 365 366 if (!vf->qvlist_info) 367 return; 368 369 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 370 for (i = 0; i < qvlist_info->num_vectors; i++) { 371 struct i40e_virtchnl_iwarp_qv_info *qv_info; 372 u32 next_q_index, next_q_type; 373 struct i40e_hw *hw = &pf->hw; 374 u32 v_idx, reg_idx, reg; 375 376 qv_info = &qvlist_info->qv_info[i]; 377 if (!qv_info) 378 continue; 379 v_idx = qv_info->v_idx; 380 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 381 /* Figure out the queue after CEQ and make that the 382 * first queue. 383 */ 384 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 385 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); 386 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) 387 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; 388 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) 389 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; 390 391 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 392 reg = (next_q_index & 393 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 394 (next_q_type << 395 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 396 397 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 398 } 399 } 400 kfree(vf->qvlist_info); 401 vf->qvlist_info = NULL; 402 } 403 404 /** 405 * i40e_config_iwarp_qvlist 406 * @vf: pointer to the VF info 407 * @qvlist_info: queue and vector list 408 * 409 * Return 0 on success or < 0 on error 410 **/ 411 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, 412 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info) 413 { 414 struct i40e_pf *pf = vf->pf; 415 struct i40e_hw *hw = &pf->hw; 416 struct i40e_virtchnl_iwarp_qv_info *qv_info; 417 u32 v_idx, i, reg_idx, reg; 418 u32 next_q_idx, next_q_type; 419 u32 msix_vf, size; 420 421 size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) + 422 (sizeof(struct i40e_virtchnl_iwarp_qv_info) * 423 (qvlist_info->num_vectors - 1)); 424 vf->qvlist_info = kzalloc(size, GFP_KERNEL); 425 vf->qvlist_info->num_vectors = qvlist_info->num_vectors; 426 427 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 428 for (i = 0; i < qvlist_info->num_vectors; i++) { 429 qv_info = &qvlist_info->qv_info[i]; 430 if (!qv_info) 431 continue; 432 v_idx = qv_info->v_idx; 433 434 /* Validate vector id belongs to this vf */ 435 if (!i40e_vc_isvalid_vector_id(vf, v_idx)) 436 goto err; 437 438 vf->qvlist_info->qv_info[i] = *qv_info; 439 440 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 441 /* We might be sharing the interrupt, so get the first queue 442 * index and type, push it down the list by adding the new 443 * queue on top. Also link it with the new queue in CEQCTL. 444 */ 445 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); 446 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> 447 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); 448 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> 449 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 450 451 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { 452 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; 453 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | 454 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | 455 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | 456 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | 457 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); 458 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); 459 460 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); 461 reg = (qv_info->ceq_idx & 462 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | 463 (I40E_QUEUE_TYPE_PE_CEQ << 464 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); 465 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); 466 } 467 468 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { 469 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | 470 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | 471 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); 472 473 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); 474 } 475 } 476 477 return 0; 478 err: 479 kfree(vf->qvlist_info); 480 vf->qvlist_info = NULL; 481 return -EINVAL; 482 } 483 484 /** 485 * i40e_config_vsi_tx_queue 486 * @vf: pointer to the VF info 487 * @vsi_id: id of VSI as provided by the FW 488 * @vsi_queue_id: vsi relative queue index 489 * @info: config. info 490 * 491 * configure tx queue 492 **/ 493 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, 494 u16 vsi_queue_id, 495 struct i40e_virtchnl_txq_info *info) 496 { 497 struct i40e_pf *pf = vf->pf; 498 struct i40e_hw *hw = &pf->hw; 499 struct i40e_hmc_obj_txq tx_ctx; 500 struct i40e_vsi *vsi; 501 u16 pf_queue_id; 502 u32 qtx_ctl; 503 int ret = 0; 504 505 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { 506 ret = -ENOENT; 507 goto error_context; 508 } 509 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 510 vsi = i40e_find_vsi_from_id(pf, vsi_id); 511 if (!vsi) { 512 ret = -ENOENT; 513 goto error_context; 514 } 515 516 /* clear the context structure first */ 517 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 518 519 /* only set the required fields */ 520 tx_ctx.base = info->dma_ring_addr / 128; 521 tx_ctx.qlen = info->ring_len; 522 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 523 tx_ctx.rdylist_act = 0; 524 tx_ctx.head_wb_ena = info->headwb_enabled; 525 tx_ctx.head_wb_addr = info->dma_headwb_addr; 526 527 /* clear the context in the HMC */ 528 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 529 if (ret) { 530 dev_err(&pf->pdev->dev, 531 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 532 pf_queue_id, ret); 533 ret = -ENOENT; 534 goto error_context; 535 } 536 537 /* set the context in the HMC */ 538 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 539 if (ret) { 540 dev_err(&pf->pdev->dev, 541 "Failed to set VF LAN Tx queue context %d error: %d\n", 542 pf_queue_id, ret); 543 ret = -ENOENT; 544 goto error_context; 545 } 546 547 /* associate this queue with the PCI VF function */ 548 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 549 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 550 & I40E_QTX_CTL_PF_INDX_MASK); 551 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 552 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 553 & I40E_QTX_CTL_VFVM_INDX_MASK); 554 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 555 i40e_flush(hw); 556 557 error_context: 558 return ret; 559 } 560 561 /** 562 * i40e_config_vsi_rx_queue 563 * @vf: pointer to the VF info 564 * @vsi_id: id of VSI as provided by the FW 565 * @vsi_queue_id: vsi relative queue index 566 * @info: config. info 567 * 568 * configure rx queue 569 **/ 570 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 571 u16 vsi_queue_id, 572 struct i40e_virtchnl_rxq_info *info) 573 { 574 struct i40e_pf *pf = vf->pf; 575 struct i40e_hw *hw = &pf->hw; 576 struct i40e_hmc_obj_rxq rx_ctx; 577 u16 pf_queue_id; 578 int ret = 0; 579 580 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 581 582 /* clear the context structure first */ 583 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 584 585 /* only set the required fields */ 586 rx_ctx.base = info->dma_ring_addr / 128; 587 rx_ctx.qlen = info->ring_len; 588 589 if (info->splithdr_enabled) { 590 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 591 I40E_RX_SPLIT_IP | 592 I40E_RX_SPLIT_TCP_UDP | 593 I40E_RX_SPLIT_SCTP; 594 /* header length validation */ 595 if (info->hdr_size > ((2 * 1024) - 64)) { 596 ret = -EINVAL; 597 goto error_param; 598 } 599 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 600 601 /* set split mode 10b */ 602 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 603 } 604 605 /* databuffer length validation */ 606 if (info->databuffer_size > ((16 * 1024) - 128)) { 607 ret = -EINVAL; 608 goto error_param; 609 } 610 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 611 612 /* max pkt. length validation */ 613 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 614 ret = -EINVAL; 615 goto error_param; 616 } 617 rx_ctx.rxmax = info->max_pkt_size; 618 619 /* enable 32bytes desc always */ 620 rx_ctx.dsize = 1; 621 622 /* default values */ 623 rx_ctx.lrxqthresh = 2; 624 rx_ctx.crcstrip = 1; 625 rx_ctx.prefena = 1; 626 rx_ctx.l2tsel = 1; 627 628 /* clear the context in the HMC */ 629 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 630 if (ret) { 631 dev_err(&pf->pdev->dev, 632 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 633 pf_queue_id, ret); 634 ret = -ENOENT; 635 goto error_param; 636 } 637 638 /* set the context in the HMC */ 639 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 640 if (ret) { 641 dev_err(&pf->pdev->dev, 642 "Failed to set VF LAN Rx queue context %d error: %d\n", 643 pf_queue_id, ret); 644 ret = -ENOENT; 645 goto error_param; 646 } 647 648 error_param: 649 return ret; 650 } 651 652 /** 653 * i40e_alloc_vsi_res 654 * @vf: pointer to the VF info 655 * @type: type of VSI to allocate 656 * 657 * alloc VF vsi context & resources 658 **/ 659 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type) 660 { 661 struct i40e_mac_filter *f = NULL; 662 struct i40e_pf *pf = vf->pf; 663 struct i40e_vsi *vsi; 664 int ret = 0; 665 666 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id); 667 668 if (!vsi) { 669 dev_err(&pf->pdev->dev, 670 "add vsi failed for VF %d, aq_err %d\n", 671 vf->vf_id, pf->hw.aq.asq_last_status); 672 ret = -ENOENT; 673 goto error_alloc_vsi_res; 674 } 675 if (type == I40E_VSI_SRIOV) { 676 u64 hena = i40e_pf_get_default_rss_hena(pf); 677 u8 broadcast[ETH_ALEN]; 678 679 vf->lan_vsi_idx = vsi->idx; 680 vf->lan_vsi_id = vsi->id; 681 /* If the port VLAN has been configured and then the 682 * VF driver was removed then the VSI port VLAN 683 * configuration was destroyed. Check if there is 684 * a port VLAN and restore the VSI configuration if 685 * needed. 686 */ 687 if (vf->port_vlan_id) 688 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 689 690 spin_lock_bh(&vsi->mac_filter_hash_lock); 691 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 692 f = i40e_add_mac_filter(vsi, 693 vf->default_lan_addr.addr); 694 if (!f) 695 dev_info(&pf->pdev->dev, 696 "Could not add MAC filter %pM for VF %d\n", 697 vf->default_lan_addr.addr, vf->vf_id); 698 } 699 eth_broadcast_addr(broadcast); 700 f = i40e_add_mac_filter(vsi, broadcast); 701 if (!f) 702 dev_info(&pf->pdev->dev, 703 "Could not allocate VF broadcast filter\n"); 704 spin_unlock_bh(&vsi->mac_filter_hash_lock); 705 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); 706 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); 707 } 708 709 /* program mac filter */ 710 ret = i40e_sync_vsi_filters(vsi); 711 if (ret) 712 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 713 714 /* Set VF bandwidth if specified */ 715 if (vf->tx_rate) { 716 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 717 vf->tx_rate / 50, 0, NULL); 718 if (ret) 719 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 720 vf->vf_id, ret); 721 } 722 723 error_alloc_vsi_res: 724 return ret; 725 } 726 727 /** 728 * i40e_enable_vf_mappings 729 * @vf: pointer to the VF info 730 * 731 * enable VF mappings 732 **/ 733 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 734 { 735 struct i40e_pf *pf = vf->pf; 736 struct i40e_hw *hw = &pf->hw; 737 u32 reg, total_queue_pairs = 0; 738 int j; 739 740 /* Tell the hardware we're using noncontiguous mapping. HW requires 741 * that VF queues be mapped using this method, even when they are 742 * contiguous in real life 743 */ 744 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 745 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 746 747 /* enable VF vplan_qtable mappings */ 748 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 749 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 750 751 /* map PF queues to VF queues */ 752 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) { 753 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j); 754 755 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 756 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); 757 total_queue_pairs++; 758 } 759 760 /* map PF queues to VSI */ 761 for (j = 0; j < 7; j++) { 762 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) { 763 reg = 0x07FF07FF; /* unused */ 764 } else { 765 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 766 j * 2); 767 reg = qid; 768 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 769 (j * 2) + 1); 770 reg |= qid << 16; 771 } 772 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), 773 reg); 774 } 775 776 i40e_flush(hw); 777 } 778 779 /** 780 * i40e_disable_vf_mappings 781 * @vf: pointer to the VF info 782 * 783 * disable VF mappings 784 **/ 785 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 786 { 787 struct i40e_pf *pf = vf->pf; 788 struct i40e_hw *hw = &pf->hw; 789 int i; 790 791 /* disable qp mappings */ 792 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 793 for (i = 0; i < I40E_MAX_VSI_QP; i++) 794 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 795 I40E_QUEUE_END_OF_LIST); 796 i40e_flush(hw); 797 } 798 799 /** 800 * i40e_free_vf_res 801 * @vf: pointer to the VF info 802 * 803 * free VF resources 804 **/ 805 static void i40e_free_vf_res(struct i40e_vf *vf) 806 { 807 struct i40e_pf *pf = vf->pf; 808 struct i40e_hw *hw = &pf->hw; 809 u32 reg_idx, reg; 810 int i, msix_vf; 811 812 /* Start by disabling VF's configuration API to prevent the OS from 813 * accessing the VF's VSI after it's freed / invalidated. 814 */ 815 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 816 817 /* free vsi & disconnect it from the parent uplink */ 818 if (vf->lan_vsi_idx) { 819 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 820 vf->lan_vsi_idx = 0; 821 vf->lan_vsi_id = 0; 822 vf->num_mac = 0; 823 } 824 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 825 826 /* disable interrupts so the VF starts in a known state */ 827 for (i = 0; i < msix_vf; i++) { 828 /* format is same for both registers */ 829 if (0 == i) 830 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 831 else 832 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 833 (vf->vf_id)) 834 + (i - 1)); 835 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 836 i40e_flush(hw); 837 } 838 839 /* clear the irq settings */ 840 for (i = 0; i < msix_vf; i++) { 841 /* format is same for both registers */ 842 if (0 == i) 843 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 844 else 845 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 846 (vf->vf_id)) 847 + (i - 1)); 848 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 849 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 850 wr32(hw, reg_idx, reg); 851 i40e_flush(hw); 852 } 853 /* reset some of the state variables keeping track of the resources */ 854 vf->num_queue_pairs = 0; 855 vf->vf_states = 0; 856 } 857 858 /** 859 * i40e_alloc_vf_res 860 * @vf: pointer to the VF info 861 * 862 * allocate VF resources 863 **/ 864 static int i40e_alloc_vf_res(struct i40e_vf *vf) 865 { 866 struct i40e_pf *pf = vf->pf; 867 int total_queue_pairs = 0; 868 int ret; 869 870 /* allocate hw vsi context & associated resources */ 871 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); 872 if (ret) 873 goto error_alloc; 874 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 875 876 if (vf->trusted) 877 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 878 else 879 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 880 881 /* store the total qps number for the runtime 882 * VF req validation 883 */ 884 vf->num_queue_pairs = total_queue_pairs; 885 886 /* VF is now completely initialized */ 887 set_bit(I40E_VF_STATE_INIT, &vf->vf_states); 888 889 error_alloc: 890 if (ret) 891 i40e_free_vf_res(vf); 892 893 return ret; 894 } 895 896 #define VF_DEVICE_STATUS 0xAA 897 #define VF_TRANS_PENDING_MASK 0x20 898 /** 899 * i40e_quiesce_vf_pci 900 * @vf: pointer to the VF structure 901 * 902 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 903 * if the transactions never clear. 904 **/ 905 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 906 { 907 struct i40e_pf *pf = vf->pf; 908 struct i40e_hw *hw = &pf->hw; 909 int vf_abs_id, i; 910 u32 reg; 911 912 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 913 914 wr32(hw, I40E_PF_PCI_CIAA, 915 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 916 for (i = 0; i < 100; i++) { 917 reg = rd32(hw, I40E_PF_PCI_CIAD); 918 if ((reg & VF_TRANS_PENDING_MASK) == 0) 919 return 0; 920 udelay(1); 921 } 922 return -EIO; 923 } 924 925 /** 926 * i40e_trigger_vf_reset 927 * @vf: pointer to the VF structure 928 * @flr: VFLR was issued or not 929 * 930 * Trigger hardware to start a reset for a particular VF. Expects the caller 931 * to wait the proper amount of time to allow hardware to reset the VF before 932 * it cleans up and restores VF functionality. 933 **/ 934 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) 935 { 936 struct i40e_pf *pf = vf->pf; 937 struct i40e_hw *hw = &pf->hw; 938 u32 reg, reg_idx, bit_idx; 939 940 /* warn the VF */ 941 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 942 943 /* Disable VF's configuration API during reset. The flag is re-enabled 944 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. 945 * It's normally disabled in i40e_free_vf_res(), but it's safer 946 * to do it earlier to give some time to finish to any VF config 947 * functions that may still be running at this point. 948 */ 949 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); 950 951 /* In the case of a VFLR, the HW has already reset the VF and we 952 * just need to clean up, so don't hit the VFRTRIG register. 953 */ 954 if (!flr) { 955 /* reset VF using VPGEN_VFRTRIG reg */ 956 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 957 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 958 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 959 i40e_flush(hw); 960 } 961 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 962 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 963 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 964 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 965 i40e_flush(hw); 966 967 if (i40e_quiesce_vf_pci(vf)) 968 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 969 vf->vf_id); 970 } 971 972 /** 973 * i40e_cleanup_reset_vf 974 * @vf: pointer to the VF structure 975 * 976 * Cleanup a VF after the hardware reset is finished. Expects the caller to 977 * have verified whether the reset is finished properly, and ensure the 978 * minimum amount of wait time has passed. 979 **/ 980 static void i40e_cleanup_reset_vf(struct i40e_vf *vf) 981 { 982 struct i40e_pf *pf = vf->pf; 983 struct i40e_hw *hw = &pf->hw; 984 u32 reg; 985 986 /* free VF resources to begin resetting the VSI state */ 987 i40e_free_vf_res(vf); 988 989 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. 990 * By doing this we allow HW to access VF memory at any point. If we 991 * did it any sooner, HW could access memory while it was being freed 992 * in i40e_free_vf_res(), causing an IOMMU fault. 993 * 994 * On the other hand, this needs to be done ASAP, because the VF driver 995 * is waiting for this to happen and may report a timeout. It's 996 * harmless, but it gets logged into Guest OS kernel log, so best avoid 997 * it. 998 */ 999 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 1000 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 1001 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 1002 1003 /* reallocate VF resources to finish resetting the VSI state */ 1004 if (!i40e_alloc_vf_res(vf)) { 1005 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1006 i40e_enable_vf_mappings(vf); 1007 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1008 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1009 /* Do not notify the client during VF init */ 1010 if (test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, 1011 &vf->vf_states)) 1012 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1013 vf->num_vlan = 0; 1014 } 1015 1016 /* Tell the VF driver the reset is done. This needs to be done only 1017 * after VF has been fully initialized, because the VF driver may 1018 * request resources immediately after setting this flag. 1019 */ 1020 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); 1021 } 1022 1023 /** 1024 * i40e_reset_vf 1025 * @vf: pointer to the VF structure 1026 * @flr: VFLR was issued or not 1027 * 1028 * reset the VF 1029 **/ 1030 void i40e_reset_vf(struct i40e_vf *vf, bool flr) 1031 { 1032 struct i40e_pf *pf = vf->pf; 1033 struct i40e_hw *hw = &pf->hw; 1034 bool rsd = false; 1035 u32 reg; 1036 int i; 1037 1038 /* If VFs have been disabled, there is no need to reset */ 1039 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1040 return; 1041 1042 i40e_trigger_vf_reset(vf, flr); 1043 1044 /* poll VPGEN_VFRSTAT reg to make sure 1045 * that reset is complete 1046 */ 1047 for (i = 0; i < 10; i++) { 1048 /* VF reset requires driver to first reset the VF and then 1049 * poll the status register to make sure that the reset 1050 * completed successfully. Due to internal HW FIFO flushes, 1051 * we must wait 10ms before the register will be valid. 1052 */ 1053 usleep_range(10000, 20000); 1054 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1055 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 1056 rsd = true; 1057 break; 1058 } 1059 } 1060 1061 if (flr) 1062 usleep_range(10000, 20000); 1063 1064 if (!rsd) 1065 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1066 vf->vf_id); 1067 usleep_range(10000, 20000); 1068 1069 /* On initial reset, we don't have any queues to disable */ 1070 if (vf->lan_vsi_idx != 0) 1071 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1072 1073 i40e_cleanup_reset_vf(vf); 1074 1075 i40e_flush(hw); 1076 clear_bit(__I40E_VF_DISABLE, pf->state); 1077 } 1078 1079 /** 1080 * i40e_reset_all_vfs 1081 * @pf: pointer to the PF structure 1082 * @flr: VFLR was issued or not 1083 * 1084 * Reset all allocated VFs in one go. First, tell the hardware to reset each 1085 * VF, then do all the waiting in one chunk, and finally finish restoring each 1086 * VF after the wait. This is useful during PF routines which need to reset 1087 * all VFs, as otherwise it must perform these resets in a serialized fashion. 1088 **/ 1089 void i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) 1090 { 1091 struct i40e_hw *hw = &pf->hw; 1092 struct i40e_vf *vf; 1093 int i, v; 1094 u32 reg; 1095 1096 /* If we don't have any VFs, then there is nothing to reset */ 1097 if (!pf->num_alloc_vfs) 1098 return; 1099 1100 /* If VFs have been disabled, there is no need to reset */ 1101 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1102 return; 1103 1104 /* Begin reset on all VFs at once */ 1105 for (v = 0; v < pf->num_alloc_vfs; v++) 1106 i40e_trigger_vf_reset(&pf->vf[v], flr); 1107 1108 /* HW requires some time to make sure it can flush the FIFO for a VF 1109 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in 1110 * sequence to make sure that it has completed. We'll keep track of 1111 * the VFs using a simple iterator that increments once that VF has 1112 * finished resetting. 1113 */ 1114 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { 1115 usleep_range(10000, 20000); 1116 1117 /* Check each VF in sequence, beginning with the VF to fail 1118 * the previous check. 1119 */ 1120 while (v < pf->num_alloc_vfs) { 1121 vf = &pf->vf[v]; 1122 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 1123 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) 1124 break; 1125 1126 /* If the current VF has finished resetting, move on 1127 * to the next VF in sequence. 1128 */ 1129 v++; 1130 } 1131 } 1132 1133 if (flr) 1134 usleep_range(10000, 20000); 1135 1136 /* Display a warning if at least one VF didn't manage to reset in 1137 * time, but continue on with the operation. 1138 */ 1139 if (v < pf->num_alloc_vfs) 1140 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 1141 pf->vf[v].vf_id); 1142 usleep_range(10000, 20000); 1143 1144 /* Begin disabling all the rings associated with VFs, but do not wait 1145 * between each VF. 1146 */ 1147 for (v = 0; v < pf->num_alloc_vfs; v++) { 1148 /* On initial reset, we don't have any queues to disable */ 1149 if (pf->vf[v].lan_vsi_idx == 0) 1150 continue; 1151 1152 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); 1153 } 1154 1155 /* Now that we've notified HW to disable all of the VF rings, wait 1156 * until they finish. 1157 */ 1158 for (v = 0; v < pf->num_alloc_vfs; v++) { 1159 /* On initial reset, we don't have any queues to disable */ 1160 if (pf->vf[v].lan_vsi_idx == 0) 1161 continue; 1162 1163 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); 1164 } 1165 1166 /* Hw may need up to 50ms to finish disabling the RX queues. We 1167 * minimize the wait by delaying only once for all VFs. 1168 */ 1169 mdelay(50); 1170 1171 /* Finish the reset on each VF */ 1172 for (v = 0; v < pf->num_alloc_vfs; v++) 1173 i40e_cleanup_reset_vf(&pf->vf[v]); 1174 1175 i40e_flush(hw); 1176 clear_bit(__I40E_VF_DISABLE, pf->state); 1177 } 1178 1179 /** 1180 * i40e_free_vfs 1181 * @pf: pointer to the PF structure 1182 * 1183 * free VF resources 1184 **/ 1185 void i40e_free_vfs(struct i40e_pf *pf) 1186 { 1187 struct i40e_hw *hw = &pf->hw; 1188 u32 reg_idx, bit_idx; 1189 int i, tmp, vf_id; 1190 1191 if (!pf->vf) 1192 return; 1193 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) 1194 usleep_range(1000, 2000); 1195 1196 i40e_notify_client_of_vf_enable(pf, 0); 1197 1198 /* Amortize wait time by stopping all VFs at the same time */ 1199 for (i = 0; i < pf->num_alloc_vfs; i++) { 1200 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1201 continue; 1202 1203 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); 1204 } 1205 1206 for (i = 0; i < pf->num_alloc_vfs; i++) { 1207 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1208 continue; 1209 1210 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); 1211 } 1212 1213 /* Disable IOV before freeing resources. This lets any VF drivers 1214 * running in the host get themselves cleaned up before we yank 1215 * the carpet out from underneath their feet. 1216 */ 1217 if (!pci_vfs_assigned(pf->pdev)) 1218 pci_disable_sriov(pf->pdev); 1219 else 1220 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1221 1222 /* free up VF resources */ 1223 tmp = pf->num_alloc_vfs; 1224 pf->num_alloc_vfs = 0; 1225 for (i = 0; i < tmp; i++) { 1226 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) 1227 i40e_free_vf_res(&pf->vf[i]); 1228 /* disable qp mappings */ 1229 i40e_disable_vf_mappings(&pf->vf[i]); 1230 } 1231 1232 kfree(pf->vf); 1233 pf->vf = NULL; 1234 1235 /* This check is for when the driver is unloaded while VFs are 1236 * assigned. Setting the number of VFs to 0 through sysfs is caught 1237 * before this function ever gets called. 1238 */ 1239 if (!pci_vfs_assigned(pf->pdev)) { 1240 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1241 * work correctly when SR-IOV gets re-enabled. 1242 */ 1243 for (vf_id = 0; vf_id < tmp; vf_id++) { 1244 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1245 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1246 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1247 } 1248 } 1249 clear_bit(__I40E_VF_DISABLE, pf->state); 1250 } 1251 1252 #ifdef CONFIG_PCI_IOV 1253 /** 1254 * i40e_alloc_vfs 1255 * @pf: pointer to the PF structure 1256 * @num_alloc_vfs: number of VFs to allocate 1257 * 1258 * allocate VF resources 1259 **/ 1260 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1261 { 1262 struct i40e_vf *vfs; 1263 int i, ret = 0; 1264 1265 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1266 i40e_irq_dynamic_disable_icr0(pf); 1267 1268 /* Check to see if we're just allocating resources for extant VFs */ 1269 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1270 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1271 if (ret) { 1272 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1273 pf->num_alloc_vfs = 0; 1274 goto err_iov; 1275 } 1276 } 1277 /* allocate memory */ 1278 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1279 if (!vfs) { 1280 ret = -ENOMEM; 1281 goto err_alloc; 1282 } 1283 pf->vf = vfs; 1284 1285 /* apply default profile */ 1286 for (i = 0; i < num_alloc_vfs; i++) { 1287 vfs[i].pf = pf; 1288 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1289 vfs[i].vf_id = i; 1290 1291 /* assign default capabilities */ 1292 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1293 vfs[i].spoofchk = true; 1294 1295 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); 1296 1297 } 1298 pf->num_alloc_vfs = num_alloc_vfs; 1299 1300 /* VF resources get allocated during reset */ 1301 i40e_reset_all_vfs(pf, false); 1302 1303 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1304 1305 err_alloc: 1306 if (ret) 1307 i40e_free_vfs(pf); 1308 err_iov: 1309 /* Re-enable interrupt 0. */ 1310 i40e_irq_dynamic_enable_icr0(pf, false); 1311 return ret; 1312 } 1313 1314 #endif 1315 /** 1316 * i40e_pci_sriov_enable 1317 * @pdev: pointer to a pci_dev structure 1318 * @num_vfs: number of VFs to allocate 1319 * 1320 * Enable or change the number of VFs 1321 **/ 1322 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1323 { 1324 #ifdef CONFIG_PCI_IOV 1325 struct i40e_pf *pf = pci_get_drvdata(pdev); 1326 int pre_existing_vfs = pci_num_vf(pdev); 1327 int err = 0; 1328 1329 if (test_bit(__I40E_TESTING, pf->state)) { 1330 dev_warn(&pdev->dev, 1331 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1332 err = -EPERM; 1333 goto err_out; 1334 } 1335 1336 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1337 i40e_free_vfs(pf); 1338 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1339 goto out; 1340 1341 if (num_vfs > pf->num_req_vfs) { 1342 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1343 num_vfs, pf->num_req_vfs); 1344 err = -EPERM; 1345 goto err_out; 1346 } 1347 1348 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1349 err = i40e_alloc_vfs(pf, num_vfs); 1350 if (err) { 1351 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1352 goto err_out; 1353 } 1354 1355 out: 1356 return num_vfs; 1357 1358 err_out: 1359 return err; 1360 #endif 1361 return 0; 1362 } 1363 1364 /** 1365 * i40e_pci_sriov_configure 1366 * @pdev: pointer to a pci_dev structure 1367 * @num_vfs: number of VFs to allocate 1368 * 1369 * Enable or change the number of VFs. Called when the user updates the number 1370 * of VFs in sysfs. 1371 **/ 1372 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1373 { 1374 struct i40e_pf *pf = pci_get_drvdata(pdev); 1375 1376 if (num_vfs) { 1377 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1378 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1379 i40e_do_reset_safe(pf, 1380 BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1381 } 1382 return i40e_pci_sriov_enable(pdev, num_vfs); 1383 } 1384 1385 if (!pci_vfs_assigned(pf->pdev)) { 1386 i40e_free_vfs(pf); 1387 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1388 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1389 } else { 1390 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1391 return -EINVAL; 1392 } 1393 return 0; 1394 } 1395 1396 /***********************virtual channel routines******************/ 1397 1398 /** 1399 * i40e_vc_send_msg_to_vf 1400 * @vf: pointer to the VF info 1401 * @v_opcode: virtual channel opcode 1402 * @v_retval: virtual channel return value 1403 * @msg: pointer to the msg buffer 1404 * @msglen: msg length 1405 * 1406 * send msg to VF 1407 **/ 1408 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1409 u32 v_retval, u8 *msg, u16 msglen) 1410 { 1411 struct i40e_pf *pf; 1412 struct i40e_hw *hw; 1413 int abs_vf_id; 1414 i40e_status aq_ret; 1415 1416 /* validate the request */ 1417 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1418 return -EINVAL; 1419 1420 pf = vf->pf; 1421 hw = &pf->hw; 1422 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1423 1424 /* single place to detect unsuccessful return values */ 1425 if (v_retval) { 1426 vf->num_invalid_msgs++; 1427 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1428 vf->vf_id, v_opcode, v_retval); 1429 if (vf->num_invalid_msgs > 1430 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1431 dev_err(&pf->pdev->dev, 1432 "Number of invalid messages exceeded for VF %d\n", 1433 vf->vf_id); 1434 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1435 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); 1436 } 1437 } else { 1438 vf->num_valid_msgs++; 1439 /* reset the invalid counter, if a valid message is received. */ 1440 vf->num_invalid_msgs = 0; 1441 } 1442 1443 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1444 msg, msglen, NULL); 1445 if (aq_ret) { 1446 dev_info(&pf->pdev->dev, 1447 "Unable to send the message to VF %d aq_err %d\n", 1448 vf->vf_id, pf->hw.aq.asq_last_status); 1449 return -EIO; 1450 } 1451 1452 return 0; 1453 } 1454 1455 /** 1456 * i40e_vc_send_resp_to_vf 1457 * @vf: pointer to the VF info 1458 * @opcode: operation code 1459 * @retval: return value 1460 * 1461 * send resp msg to VF 1462 **/ 1463 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1464 enum i40e_virtchnl_ops opcode, 1465 i40e_status retval) 1466 { 1467 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1468 } 1469 1470 /** 1471 * i40e_vc_get_version_msg 1472 * @vf: pointer to the VF info 1473 * 1474 * called from the VF to request the API version used by the PF 1475 **/ 1476 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1477 { 1478 struct i40e_virtchnl_version_info info = { 1479 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR 1480 }; 1481 1482 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg; 1483 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1484 if (VF_IS_V10(vf)) 1485 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1486 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, 1487 I40E_SUCCESS, (u8 *)&info, 1488 sizeof(struct 1489 i40e_virtchnl_version_info)); 1490 } 1491 1492 /** 1493 * i40e_vc_get_vf_resources_msg 1494 * @vf: pointer to the VF info 1495 * @msg: pointer to the msg buffer 1496 * @msglen: msg length 1497 * 1498 * called from the VF to request its resources 1499 **/ 1500 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1501 { 1502 struct i40e_virtchnl_vf_resource *vfres = NULL; 1503 struct i40e_pf *pf = vf->pf; 1504 i40e_status aq_ret = 0; 1505 struct i40e_vsi *vsi; 1506 int num_vsis = 1; 1507 int len = 0; 1508 int ret; 1509 1510 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 1511 aq_ret = I40E_ERR_PARAM; 1512 goto err; 1513 } 1514 1515 len = (sizeof(struct i40e_virtchnl_vf_resource) + 1516 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); 1517 1518 vfres = kzalloc(len, GFP_KERNEL); 1519 if (!vfres) { 1520 aq_ret = I40E_ERR_NO_MEMORY; 1521 len = 0; 1522 goto err; 1523 } 1524 if (VF_IS_V11(vf)) 1525 vf->driver_caps = *(u32 *)msg; 1526 else 1527 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 | 1528 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG | 1529 I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1530 1531 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; 1532 vsi = pf->vsi[vf->lan_vsi_idx]; 1533 if (!vsi->info.pvid) 1534 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1535 1536 if (i40e_vf_client_capable(pf, vf->vf_id) && 1537 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) { 1538 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP; 1539 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); 1540 } 1541 1542 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) { 1543 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF; 1544 } else { 1545 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) && 1546 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 1547 vfres->vf_offload_flags |= 1548 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1549 else 1550 vfres->vf_offload_flags |= 1551 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG; 1552 } 1553 1554 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1555 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1556 vfres->vf_offload_flags |= 1557 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1558 } 1559 1560 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP) 1561 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP; 1562 1563 if ((pf->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE) && 1564 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) 1565 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; 1566 1567 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 1568 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 1569 dev_err(&pf->pdev->dev, 1570 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 1571 vf->vf_id); 1572 ret = I40E_ERR_PARAM; 1573 goto err; 1574 } 1575 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1576 } 1577 1578 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) { 1579 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1580 vfres->vf_offload_flags |= 1581 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1582 } 1583 1584 vfres->num_vsis = num_vsis; 1585 vfres->num_queue_pairs = vf->num_queue_pairs; 1586 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 1587 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 1588 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 1589 1590 if (vf->lan_vsi_idx) { 1591 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 1592 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV; 1593 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 1594 /* VFs only use TC 0 */ 1595 vfres->vsi_res[0].qset_handle 1596 = le16_to_cpu(vsi->info.qs_handle[0]); 1597 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 1598 vf->default_lan_addr.addr); 1599 } 1600 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); 1601 1602 err: 1603 /* send the response back to the VF */ 1604 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, 1605 aq_ret, (u8 *)vfres, len); 1606 1607 kfree(vfres); 1608 return ret; 1609 } 1610 1611 /** 1612 * i40e_vc_reset_vf_msg 1613 * @vf: pointer to the VF info 1614 * @msg: pointer to the msg buffer 1615 * @msglen: msg length 1616 * 1617 * called from the VF to reset itself, 1618 * unlike other virtchnl messages, PF driver 1619 * doesn't send the response back to the VF 1620 **/ 1621 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 1622 { 1623 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) 1624 i40e_reset_vf(vf, false); 1625 } 1626 1627 /** 1628 * i40e_getnum_vf_vsi_vlan_filters 1629 * @vsi: pointer to the vsi 1630 * 1631 * called to get the number of VLANs offloaded on this VF 1632 **/ 1633 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1634 { 1635 struct i40e_mac_filter *f; 1636 int num_vlans = 0, bkt; 1637 1638 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1639 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1640 num_vlans++; 1641 } 1642 1643 return num_vlans; 1644 } 1645 1646 /** 1647 * i40e_vc_config_promiscuous_mode_msg 1648 * @vf: pointer to the VF info 1649 * @msg: pointer to the msg buffer 1650 * @msglen: msg length 1651 * 1652 * called from the VF to configure the promiscuous mode of 1653 * VF vsis 1654 **/ 1655 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, 1656 u8 *msg, u16 msglen) 1657 { 1658 struct i40e_virtchnl_promisc_info *info = 1659 (struct i40e_virtchnl_promisc_info *)msg; 1660 struct i40e_pf *pf = vf->pf; 1661 struct i40e_hw *hw = &pf->hw; 1662 struct i40e_mac_filter *f; 1663 i40e_status aq_ret = 0; 1664 bool allmulti = false; 1665 struct i40e_vsi *vsi; 1666 bool alluni = false; 1667 int aq_err = 0; 1668 int bkt; 1669 1670 vsi = i40e_find_vsi_from_id(pf, info->vsi_id); 1671 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 1672 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || 1673 !vsi) { 1674 aq_ret = I40E_ERR_PARAM; 1675 goto error_param; 1676 } 1677 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 1678 dev_err(&pf->pdev->dev, 1679 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 1680 vf->vf_id); 1681 /* Lie to the VF on purpose. */ 1682 aq_ret = 0; 1683 goto error_param; 1684 } 1685 /* Multicast promiscuous handling*/ 1686 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) 1687 allmulti = true; 1688 1689 if (vf->port_vlan_id) { 1690 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, 1691 allmulti, 1692 vf->port_vlan_id, 1693 NULL); 1694 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1695 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1696 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1697 continue; 1698 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, 1699 vsi->seid, 1700 allmulti, 1701 f->vlan, 1702 NULL); 1703 aq_err = pf->hw.aq.asq_last_status; 1704 if (aq_ret) { 1705 dev_err(&pf->pdev->dev, 1706 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n", 1707 f->vlan, 1708 i40e_stat_str(&pf->hw, aq_ret), 1709 i40e_aq_str(&pf->hw, aq_err)); 1710 break; 1711 } 1712 } 1713 } else { 1714 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, 1715 allmulti, NULL); 1716 aq_err = pf->hw.aq.asq_last_status; 1717 if (aq_ret) { 1718 dev_err(&pf->pdev->dev, 1719 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1720 vf->vf_id, 1721 i40e_stat_str(&pf->hw, aq_ret), 1722 i40e_aq_str(&pf->hw, aq_err)); 1723 goto error_param; 1724 } 1725 } 1726 1727 if (!aq_ret) { 1728 dev_info(&pf->pdev->dev, 1729 "VF %d successfully set multicast promiscuous mode\n", 1730 vf->vf_id); 1731 if (allmulti) 1732 set_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1733 else 1734 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); 1735 } 1736 1737 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC) 1738 alluni = true; 1739 if (vf->port_vlan_id) { 1740 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, 1741 alluni, 1742 vf->port_vlan_id, 1743 NULL); 1744 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1745 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1746 aq_ret = 0; 1747 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) { 1748 aq_ret = 1749 i40e_aq_set_vsi_uc_promisc_on_vlan(hw, 1750 vsi->seid, 1751 alluni, 1752 f->vlan, 1753 NULL); 1754 aq_err = pf->hw.aq.asq_last_status; 1755 } 1756 if (aq_ret) 1757 dev_err(&pf->pdev->dev, 1758 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n", 1759 f->vlan, 1760 i40e_stat_str(&pf->hw, aq_ret), 1761 i40e_aq_str(&pf->hw, aq_err)); 1762 } 1763 } else { 1764 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, 1765 allmulti, NULL, 1766 true); 1767 aq_err = pf->hw.aq.asq_last_status; 1768 if (aq_ret) { 1769 dev_err(&pf->pdev->dev, 1770 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n", 1771 vf->vf_id, info->flags, 1772 i40e_stat_str(&pf->hw, aq_ret), 1773 i40e_aq_str(&pf->hw, aq_err)); 1774 goto error_param; 1775 } 1776 } 1777 1778 if (!aq_ret) { 1779 dev_info(&pf->pdev->dev, 1780 "VF %d successfully set unicast promiscuous mode\n", 1781 vf->vf_id); 1782 if (alluni) 1783 set_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1784 else 1785 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); 1786 } 1787 1788 error_param: 1789 /* send the response to the VF */ 1790 return i40e_vc_send_resp_to_vf(vf, 1791 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 1792 aq_ret); 1793 } 1794 1795 /** 1796 * i40e_vc_config_queues_msg 1797 * @vf: pointer to the VF info 1798 * @msg: pointer to the msg buffer 1799 * @msglen: msg length 1800 * 1801 * called from the VF to configure the rx/tx 1802 * queues 1803 **/ 1804 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1805 { 1806 struct i40e_virtchnl_vsi_queue_config_info *qci = 1807 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 1808 struct i40e_virtchnl_queue_pair_info *qpi; 1809 struct i40e_pf *pf = vf->pf; 1810 u16 vsi_id, vsi_queue_id; 1811 i40e_status aq_ret = 0; 1812 int i; 1813 1814 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 1815 aq_ret = I40E_ERR_PARAM; 1816 goto error_param; 1817 } 1818 1819 vsi_id = qci->vsi_id; 1820 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1821 aq_ret = I40E_ERR_PARAM; 1822 goto error_param; 1823 } 1824 for (i = 0; i < qci->num_queue_pairs; i++) { 1825 qpi = &qci->qpair[i]; 1826 vsi_queue_id = qpi->txq.queue_id; 1827 if ((qpi->txq.vsi_id != vsi_id) || 1828 (qpi->rxq.vsi_id != vsi_id) || 1829 (qpi->rxq.queue_id != vsi_queue_id) || 1830 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { 1831 aq_ret = I40E_ERR_PARAM; 1832 goto error_param; 1833 } 1834 1835 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 1836 &qpi->rxq) || 1837 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 1838 &qpi->txq)) { 1839 aq_ret = I40E_ERR_PARAM; 1840 goto error_param; 1841 } 1842 } 1843 /* set vsi num_queue_pairs in use to num configured by VF */ 1844 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs; 1845 1846 error_param: 1847 /* send the response to the VF */ 1848 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, 1849 aq_ret); 1850 } 1851 1852 /** 1853 * i40e_vc_config_irq_map_msg 1854 * @vf: pointer to the VF info 1855 * @msg: pointer to the msg buffer 1856 * @msglen: msg length 1857 * 1858 * called from the VF to configure the irq to 1859 * queue map 1860 **/ 1861 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1862 { 1863 struct i40e_virtchnl_irq_map_info *irqmap_info = 1864 (struct i40e_virtchnl_irq_map_info *)msg; 1865 struct i40e_virtchnl_vector_map *map; 1866 u16 vsi_id, vsi_queue_id, vector_id; 1867 i40e_status aq_ret = 0; 1868 unsigned long tempmap; 1869 int i; 1870 1871 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 1872 aq_ret = I40E_ERR_PARAM; 1873 goto error_param; 1874 } 1875 1876 for (i = 0; i < irqmap_info->num_vectors; i++) { 1877 map = &irqmap_info->vecmap[i]; 1878 1879 vector_id = map->vector_id; 1880 vsi_id = map->vsi_id; 1881 /* validate msg params */ 1882 if (!i40e_vc_isvalid_vector_id(vf, vector_id) || 1883 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1884 aq_ret = I40E_ERR_PARAM; 1885 goto error_param; 1886 } 1887 1888 /* lookout for the invalid queue index */ 1889 tempmap = map->rxq_map; 1890 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1891 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1892 vsi_queue_id)) { 1893 aq_ret = I40E_ERR_PARAM; 1894 goto error_param; 1895 } 1896 } 1897 1898 tempmap = map->txq_map; 1899 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1900 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1901 vsi_queue_id)) { 1902 aq_ret = I40E_ERR_PARAM; 1903 goto error_param; 1904 } 1905 } 1906 1907 i40e_config_irq_link_list(vf, vsi_id, map); 1908 } 1909 error_param: 1910 /* send the response to the VF */ 1911 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, 1912 aq_ret); 1913 } 1914 1915 /** 1916 * i40e_vc_enable_queues_msg 1917 * @vf: pointer to the VF info 1918 * @msg: pointer to the msg buffer 1919 * @msglen: msg length 1920 * 1921 * called from the VF to enable all or specific queue(s) 1922 **/ 1923 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1924 { 1925 struct i40e_virtchnl_queue_select *vqs = 1926 (struct i40e_virtchnl_queue_select *)msg; 1927 struct i40e_pf *pf = vf->pf; 1928 u16 vsi_id = vqs->vsi_id; 1929 i40e_status aq_ret = 0; 1930 1931 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 1932 aq_ret = I40E_ERR_PARAM; 1933 goto error_param; 1934 } 1935 1936 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1937 aq_ret = I40E_ERR_PARAM; 1938 goto error_param; 1939 } 1940 1941 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1942 aq_ret = I40E_ERR_PARAM; 1943 goto error_param; 1944 } 1945 1946 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx])) 1947 aq_ret = I40E_ERR_TIMEOUT; 1948 error_param: 1949 /* send the response to the VF */ 1950 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, 1951 aq_ret); 1952 } 1953 1954 /** 1955 * i40e_vc_disable_queues_msg 1956 * @vf: pointer to the VF info 1957 * @msg: pointer to the msg buffer 1958 * @msglen: msg length 1959 * 1960 * called from the VF to disable all or specific 1961 * queue(s) 1962 **/ 1963 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1964 { 1965 struct i40e_virtchnl_queue_select *vqs = 1966 (struct i40e_virtchnl_queue_select *)msg; 1967 struct i40e_pf *pf = vf->pf; 1968 i40e_status aq_ret = 0; 1969 1970 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 1971 aq_ret = I40E_ERR_PARAM; 1972 goto error_param; 1973 } 1974 1975 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1976 aq_ret = I40E_ERR_PARAM; 1977 goto error_param; 1978 } 1979 1980 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1981 aq_ret = I40E_ERR_PARAM; 1982 goto error_param; 1983 } 1984 1985 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1986 1987 error_param: 1988 /* send the response to the VF */ 1989 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, 1990 aq_ret); 1991 } 1992 1993 /** 1994 * i40e_vc_get_stats_msg 1995 * @vf: pointer to the VF info 1996 * @msg: pointer to the msg buffer 1997 * @msglen: msg length 1998 * 1999 * called from the VF to get vsi stats 2000 **/ 2001 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2002 { 2003 struct i40e_virtchnl_queue_select *vqs = 2004 (struct i40e_virtchnl_queue_select *)msg; 2005 struct i40e_pf *pf = vf->pf; 2006 struct i40e_eth_stats stats; 2007 i40e_status aq_ret = 0; 2008 struct i40e_vsi *vsi; 2009 2010 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 2011 2012 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2013 aq_ret = I40E_ERR_PARAM; 2014 goto error_param; 2015 } 2016 2017 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 2018 aq_ret = I40E_ERR_PARAM; 2019 goto error_param; 2020 } 2021 2022 vsi = pf->vsi[vf->lan_vsi_idx]; 2023 if (!vsi) { 2024 aq_ret = I40E_ERR_PARAM; 2025 goto error_param; 2026 } 2027 i40e_update_eth_stats(vsi); 2028 stats = vsi->eth_stats; 2029 2030 error_param: 2031 /* send the response back to the VF */ 2032 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, 2033 (u8 *)&stats, sizeof(stats)); 2034 } 2035 2036 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */ 2037 #define I40E_VC_MAX_MAC_ADDR_PER_VF 12 2038 #define I40E_VC_MAX_VLAN_PER_VF 8 2039 2040 /** 2041 * i40e_check_vf_permission 2042 * @vf: pointer to the VF info 2043 * @macaddr: pointer to the MAC Address being checked 2044 * 2045 * Check if the VF has permission to add or delete unicast MAC address 2046 * filters and return error code -EPERM if not. Then check if the 2047 * address filter requested is broadcast or zero and if so return 2048 * an invalid MAC address error code. 2049 **/ 2050 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) 2051 { 2052 struct i40e_pf *pf = vf->pf; 2053 int ret = 0; 2054 2055 if (is_broadcast_ether_addr(macaddr) || 2056 is_zero_ether_addr(macaddr)) { 2057 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); 2058 ret = I40E_ERR_INVALID_MAC_ADDR; 2059 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && 2060 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 2061 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { 2062 /* If the host VMM administrator has set the VF MAC address 2063 * administratively via the ndo_set_vf_mac command then deny 2064 * permission to the VF to add or delete unicast MAC addresses. 2065 * Unless the VF is privileged and then it can do whatever. 2066 * The VF may request to set the MAC address filter already 2067 * assigned to it so do not return an error in that case. 2068 */ 2069 dev_err(&pf->pdev->dev, 2070 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n"); 2071 ret = -EPERM; 2072 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) && 2073 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2074 dev_err(&pf->pdev->dev, 2075 "VF is not trusted, switch the VF to trusted to add more functionality\n"); 2076 ret = -EPERM; 2077 } 2078 return ret; 2079 } 2080 2081 /** 2082 * i40e_vc_add_mac_addr_msg 2083 * @vf: pointer to the VF info 2084 * @msg: pointer to the msg buffer 2085 * @msglen: msg length 2086 * 2087 * add guest mac address filter 2088 **/ 2089 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2090 { 2091 struct i40e_virtchnl_ether_addr_list *al = 2092 (struct i40e_virtchnl_ether_addr_list *)msg; 2093 struct i40e_pf *pf = vf->pf; 2094 struct i40e_vsi *vsi = NULL; 2095 u16 vsi_id = al->vsi_id; 2096 i40e_status ret = 0; 2097 int i; 2098 2099 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2100 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2101 ret = I40E_ERR_PARAM; 2102 goto error_param; 2103 } 2104 2105 for (i = 0; i < al->num_elements; i++) { 2106 ret = i40e_check_vf_permission(vf, al->list[i].addr); 2107 if (ret) 2108 goto error_param; 2109 } 2110 vsi = pf->vsi[vf->lan_vsi_idx]; 2111 2112 /* Lock once, because all function inside for loop accesses VSI's 2113 * MAC filter list which needs to be protected using same lock. 2114 */ 2115 spin_lock_bh(&vsi->mac_filter_hash_lock); 2116 2117 /* add new addresses to the list */ 2118 for (i = 0; i < al->num_elements; i++) { 2119 struct i40e_mac_filter *f; 2120 2121 f = i40e_find_mac(vsi, al->list[i].addr); 2122 if (!f) 2123 f = i40e_add_mac_filter(vsi, al->list[i].addr); 2124 2125 if (!f) { 2126 dev_err(&pf->pdev->dev, 2127 "Unable to add MAC filter %pM for VF %d\n", 2128 al->list[i].addr, vf->vf_id); 2129 ret = I40E_ERR_PARAM; 2130 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2131 goto error_param; 2132 } else { 2133 vf->num_mac++; 2134 } 2135 } 2136 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2137 2138 /* program the updated filter list */ 2139 ret = i40e_sync_vsi_filters(vsi); 2140 if (ret) 2141 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2142 vf->vf_id, ret); 2143 2144 error_param: 2145 /* send the response to the VF */ 2146 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, 2147 ret); 2148 } 2149 2150 /** 2151 * i40e_vc_del_mac_addr_msg 2152 * @vf: pointer to the VF info 2153 * @msg: pointer to the msg buffer 2154 * @msglen: msg length 2155 * 2156 * remove guest mac address filter 2157 **/ 2158 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2159 { 2160 struct i40e_virtchnl_ether_addr_list *al = 2161 (struct i40e_virtchnl_ether_addr_list *)msg; 2162 struct i40e_pf *pf = vf->pf; 2163 struct i40e_vsi *vsi = NULL; 2164 u16 vsi_id = al->vsi_id; 2165 i40e_status ret = 0; 2166 int i; 2167 2168 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2169 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2170 ret = I40E_ERR_PARAM; 2171 goto error_param; 2172 } 2173 2174 for (i = 0; i < al->num_elements; i++) { 2175 if (is_broadcast_ether_addr(al->list[i].addr) || 2176 is_zero_ether_addr(al->list[i].addr)) { 2177 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 2178 al->list[i].addr, vf->vf_id); 2179 ret = I40E_ERR_INVALID_MAC_ADDR; 2180 goto error_param; 2181 } 2182 } 2183 vsi = pf->vsi[vf->lan_vsi_idx]; 2184 2185 spin_lock_bh(&vsi->mac_filter_hash_lock); 2186 /* delete addresses from the list */ 2187 for (i = 0; i < al->num_elements; i++) 2188 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2189 ret = I40E_ERR_INVALID_MAC_ADDR; 2190 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2191 goto error_param; 2192 } else { 2193 vf->num_mac--; 2194 } 2195 2196 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2197 2198 /* program the updated filter list */ 2199 ret = i40e_sync_vsi_filters(vsi); 2200 if (ret) 2201 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2202 vf->vf_id, ret); 2203 2204 error_param: 2205 /* send the response to the VF */ 2206 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, 2207 ret); 2208 } 2209 2210 /** 2211 * i40e_vc_add_vlan_msg 2212 * @vf: pointer to the VF info 2213 * @msg: pointer to the msg buffer 2214 * @msglen: msg length 2215 * 2216 * program guest vlan id 2217 **/ 2218 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2219 { 2220 struct i40e_virtchnl_vlan_filter_list *vfl = 2221 (struct i40e_virtchnl_vlan_filter_list *)msg; 2222 struct i40e_pf *pf = vf->pf; 2223 struct i40e_vsi *vsi = NULL; 2224 u16 vsi_id = vfl->vsi_id; 2225 i40e_status aq_ret = 0; 2226 int i; 2227 2228 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2229 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2230 dev_err(&pf->pdev->dev, 2231 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2232 goto error_param; 2233 } 2234 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2235 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2236 aq_ret = I40E_ERR_PARAM; 2237 goto error_param; 2238 } 2239 2240 for (i = 0; i < vfl->num_elements; i++) { 2241 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2242 aq_ret = I40E_ERR_PARAM; 2243 dev_err(&pf->pdev->dev, 2244 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2245 goto error_param; 2246 } 2247 } 2248 vsi = pf->vsi[vf->lan_vsi_idx]; 2249 if (vsi->info.pvid) { 2250 aq_ret = I40E_ERR_PARAM; 2251 goto error_param; 2252 } 2253 2254 i40e_vlan_stripping_enable(vsi); 2255 for (i = 0; i < vfl->num_elements; i++) { 2256 /* add new VLAN filter */ 2257 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 2258 if (!ret) 2259 vf->num_vlan++; 2260 2261 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2262 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2263 true, 2264 vfl->vlan_id[i], 2265 NULL); 2266 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2267 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2268 true, 2269 vfl->vlan_id[i], 2270 NULL); 2271 2272 if (ret) 2273 dev_err(&pf->pdev->dev, 2274 "Unable to add VLAN filter %d for VF %d, error %d\n", 2275 vfl->vlan_id[i], vf->vf_id, ret); 2276 } 2277 2278 error_param: 2279 /* send the response to the VF */ 2280 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); 2281 } 2282 2283 /** 2284 * i40e_vc_remove_vlan_msg 2285 * @vf: pointer to the VF info 2286 * @msg: pointer to the msg buffer 2287 * @msglen: msg length 2288 * 2289 * remove programmed guest vlan id 2290 **/ 2291 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2292 { 2293 struct i40e_virtchnl_vlan_filter_list *vfl = 2294 (struct i40e_virtchnl_vlan_filter_list *)msg; 2295 struct i40e_pf *pf = vf->pf; 2296 struct i40e_vsi *vsi = NULL; 2297 u16 vsi_id = vfl->vsi_id; 2298 i40e_status aq_ret = 0; 2299 int i; 2300 2301 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2302 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2303 aq_ret = I40E_ERR_PARAM; 2304 goto error_param; 2305 } 2306 2307 for (i = 0; i < vfl->num_elements; i++) { 2308 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2309 aq_ret = I40E_ERR_PARAM; 2310 goto error_param; 2311 } 2312 } 2313 2314 vsi = pf->vsi[vf->lan_vsi_idx]; 2315 if (vsi->info.pvid) { 2316 aq_ret = I40E_ERR_PARAM; 2317 goto error_param; 2318 } 2319 2320 for (i = 0; i < vfl->num_elements; i++) { 2321 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 2322 vf->num_vlan--; 2323 2324 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) 2325 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2326 false, 2327 vfl->vlan_id[i], 2328 NULL); 2329 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) 2330 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2331 false, 2332 vfl->vlan_id[i], 2333 NULL); 2334 } 2335 2336 error_param: 2337 /* send the response to the VF */ 2338 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); 2339 } 2340 2341 /** 2342 * i40e_vc_iwarp_msg 2343 * @vf: pointer to the VF info 2344 * @msg: pointer to the msg buffer 2345 * @msglen: msg length 2346 * 2347 * called from the VF for the iwarp msgs 2348 **/ 2349 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2350 { 2351 struct i40e_pf *pf = vf->pf; 2352 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 2353 i40e_status aq_ret = 0; 2354 2355 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2356 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2357 aq_ret = I40E_ERR_PARAM; 2358 goto error_param; 2359 } 2360 2361 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 2362 msg, msglen); 2363 2364 error_param: 2365 /* send the response to the VF */ 2366 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP, 2367 aq_ret); 2368 } 2369 2370 /** 2371 * i40e_vc_iwarp_qvmap_msg 2372 * @vf: pointer to the VF info 2373 * @msg: pointer to the msg buffer 2374 * @msglen: msg length 2375 * @config: config qvmap or release it 2376 * 2377 * called from the VF for the iwarp msgs 2378 **/ 2379 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen, 2380 bool config) 2381 { 2382 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = 2383 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2384 i40e_status aq_ret = 0; 2385 2386 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2387 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { 2388 aq_ret = I40E_ERR_PARAM; 2389 goto error_param; 2390 } 2391 2392 if (config) { 2393 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2394 aq_ret = I40E_ERR_PARAM; 2395 } else { 2396 i40e_release_iwarp_qvlist(vf); 2397 } 2398 2399 error_param: 2400 /* send the response to the VF */ 2401 return i40e_vc_send_resp_to_vf(vf, 2402 config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 2403 I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 2404 aq_ret); 2405 } 2406 2407 /** 2408 * i40e_vc_config_rss_key 2409 * @vf: pointer to the VF info 2410 * @msg: pointer to the msg buffer 2411 * @msglen: msg length 2412 * 2413 * Configure the VF's RSS key 2414 **/ 2415 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen) 2416 { 2417 struct i40e_virtchnl_rss_key *vrk = 2418 (struct i40e_virtchnl_rss_key *)msg; 2419 struct i40e_pf *pf = vf->pf; 2420 struct i40e_vsi *vsi = NULL; 2421 u16 vsi_id = vrk->vsi_id; 2422 i40e_status aq_ret = 0; 2423 2424 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2425 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2426 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { 2427 aq_ret = I40E_ERR_PARAM; 2428 goto err; 2429 } 2430 2431 vsi = pf->vsi[vf->lan_vsi_idx]; 2432 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 2433 err: 2434 /* send the response to the VF */ 2435 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY, 2436 aq_ret); 2437 } 2438 2439 /** 2440 * i40e_vc_config_rss_lut 2441 * @vf: pointer to the VF info 2442 * @msg: pointer to the msg buffer 2443 * @msglen: msg length 2444 * 2445 * Configure the VF's RSS LUT 2446 **/ 2447 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen) 2448 { 2449 struct i40e_virtchnl_rss_lut *vrl = 2450 (struct i40e_virtchnl_rss_lut *)msg; 2451 struct i40e_pf *pf = vf->pf; 2452 struct i40e_vsi *vsi = NULL; 2453 u16 vsi_id = vrl->vsi_id; 2454 i40e_status aq_ret = 0; 2455 2456 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || 2457 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2458 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { 2459 aq_ret = I40E_ERR_PARAM; 2460 goto err; 2461 } 2462 2463 vsi = pf->vsi[vf->lan_vsi_idx]; 2464 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 2465 /* send the response to the VF */ 2466 err: 2467 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT, 2468 aq_ret); 2469 } 2470 2471 /** 2472 * i40e_vc_get_rss_hena 2473 * @vf: pointer to the VF info 2474 * @msg: pointer to the msg buffer 2475 * @msglen: msg length 2476 * 2477 * Return the RSS HENA bits allowed by the hardware 2478 **/ 2479 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2480 { 2481 struct i40e_virtchnl_rss_hena *vrh = NULL; 2482 struct i40e_pf *pf = vf->pf; 2483 i40e_status aq_ret = 0; 2484 int len = 0; 2485 2486 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2487 aq_ret = I40E_ERR_PARAM; 2488 goto err; 2489 } 2490 len = sizeof(struct i40e_virtchnl_rss_hena); 2491 2492 vrh = kzalloc(len, GFP_KERNEL); 2493 if (!vrh) { 2494 aq_ret = I40E_ERR_NO_MEMORY; 2495 len = 0; 2496 goto err; 2497 } 2498 vrh->hena = i40e_pf_get_default_rss_hena(pf); 2499 err: 2500 /* send the response back to the VF */ 2501 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS, 2502 aq_ret, (u8 *)vrh, len); 2503 kfree(vrh); 2504 return aq_ret; 2505 } 2506 2507 /** 2508 * i40e_vc_set_rss_hena 2509 * @vf: pointer to the VF info 2510 * @msg: pointer to the msg buffer 2511 * @msglen: msg length 2512 * 2513 * Set the RSS HENA bits for the VF 2514 **/ 2515 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2516 { 2517 struct i40e_virtchnl_rss_hena *vrh = 2518 (struct i40e_virtchnl_rss_hena *)msg; 2519 struct i40e_pf *pf = vf->pf; 2520 struct i40e_hw *hw = &pf->hw; 2521 i40e_status aq_ret = 0; 2522 2523 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { 2524 aq_ret = I40E_ERR_PARAM; 2525 goto err; 2526 } 2527 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 2528 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 2529 (u32)(vrh->hena >> 32)); 2530 2531 /* send the response to the VF */ 2532 err: 2533 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA, 2534 aq_ret); 2535 } 2536 2537 /** 2538 * i40e_vc_validate_vf_msg 2539 * @vf: pointer to the VF info 2540 * @msg: pointer to the msg buffer 2541 * @msglen: msg length 2542 * @msghndl: msg handle 2543 * 2544 * validate msg 2545 **/ 2546 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, 2547 u32 v_retval, u8 *msg, u16 msglen) 2548 { 2549 bool err_msg_format = false; 2550 int valid_len = 0; 2551 2552 /* Check if VF is disabled. */ 2553 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) 2554 return I40E_ERR_PARAM; 2555 2556 /* Validate message length. */ 2557 switch (v_opcode) { 2558 case I40E_VIRTCHNL_OP_VERSION: 2559 valid_len = sizeof(struct i40e_virtchnl_version_info); 2560 break; 2561 case I40E_VIRTCHNL_OP_RESET_VF: 2562 break; 2563 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2564 if (VF_IS_V11(vf)) 2565 valid_len = sizeof(u32); 2566 break; 2567 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: 2568 valid_len = sizeof(struct i40e_virtchnl_txq_info); 2569 break; 2570 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: 2571 valid_len = sizeof(struct i40e_virtchnl_rxq_info); 2572 break; 2573 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2574 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); 2575 if (msglen >= valid_len) { 2576 struct i40e_virtchnl_vsi_queue_config_info *vqc = 2577 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 2578 valid_len += (vqc->num_queue_pairs * 2579 sizeof(struct 2580 i40e_virtchnl_queue_pair_info)); 2581 if (vqc->num_queue_pairs == 0) 2582 err_msg_format = true; 2583 } 2584 break; 2585 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2586 valid_len = sizeof(struct i40e_virtchnl_irq_map_info); 2587 if (msglen >= valid_len) { 2588 struct i40e_virtchnl_irq_map_info *vimi = 2589 (struct i40e_virtchnl_irq_map_info *)msg; 2590 valid_len += (vimi->num_vectors * 2591 sizeof(struct i40e_virtchnl_vector_map)); 2592 if (vimi->num_vectors == 0) 2593 err_msg_format = true; 2594 } 2595 break; 2596 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2597 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2598 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2599 break; 2600 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2601 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2602 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); 2603 if (msglen >= valid_len) { 2604 struct i40e_virtchnl_ether_addr_list *veal = 2605 (struct i40e_virtchnl_ether_addr_list *)msg; 2606 valid_len += veal->num_elements * 2607 sizeof(struct i40e_virtchnl_ether_addr); 2608 if (veal->num_elements == 0) 2609 err_msg_format = true; 2610 } 2611 break; 2612 case I40E_VIRTCHNL_OP_ADD_VLAN: 2613 case I40E_VIRTCHNL_OP_DEL_VLAN: 2614 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); 2615 if (msglen >= valid_len) { 2616 struct i40e_virtchnl_vlan_filter_list *vfl = 2617 (struct i40e_virtchnl_vlan_filter_list *)msg; 2618 valid_len += vfl->num_elements * sizeof(u16); 2619 if (vfl->num_elements == 0) 2620 err_msg_format = true; 2621 } 2622 break; 2623 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2624 valid_len = sizeof(struct i40e_virtchnl_promisc_info); 2625 break; 2626 case I40E_VIRTCHNL_OP_GET_STATS: 2627 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2628 break; 2629 case I40E_VIRTCHNL_OP_IWARP: 2630 /* These messages are opaque to us and will be validated in 2631 * the RDMA client code. We just need to check for nonzero 2632 * length. The firmware will enforce max length restrictions. 2633 */ 2634 if (msglen) 2635 valid_len = msglen; 2636 else 2637 err_msg_format = true; 2638 break; 2639 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2640 valid_len = 0; 2641 break; 2642 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2643 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info); 2644 if (msglen >= valid_len) { 2645 struct i40e_virtchnl_iwarp_qvlist_info *qv = 2646 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2647 if (qv->num_vectors == 0) { 2648 err_msg_format = true; 2649 break; 2650 } 2651 valid_len += ((qv->num_vectors - 1) * 2652 sizeof(struct i40e_virtchnl_iwarp_qv_info)); 2653 } 2654 break; 2655 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2656 valid_len = sizeof(struct i40e_virtchnl_rss_key); 2657 if (msglen >= valid_len) { 2658 struct i40e_virtchnl_rss_key *vrk = 2659 (struct i40e_virtchnl_rss_key *)msg; 2660 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 2661 err_msg_format = true; 2662 break; 2663 } 2664 valid_len += vrk->key_len - 1; 2665 } 2666 break; 2667 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2668 valid_len = sizeof(struct i40e_virtchnl_rss_lut); 2669 if (msglen >= valid_len) { 2670 struct i40e_virtchnl_rss_lut *vrl = 2671 (struct i40e_virtchnl_rss_lut *)msg; 2672 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 2673 err_msg_format = true; 2674 break; 2675 } 2676 valid_len += vrl->lut_entries - 1; 2677 } 2678 break; 2679 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2680 break; 2681 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2682 valid_len = sizeof(struct i40e_virtchnl_rss_hena); 2683 break; 2684 /* These are always errors coming from the VF. */ 2685 case I40E_VIRTCHNL_OP_EVENT: 2686 case I40E_VIRTCHNL_OP_UNKNOWN: 2687 default: 2688 return -EPERM; 2689 } 2690 /* few more checks */ 2691 if ((valid_len != msglen) || (err_msg_format)) { 2692 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 2693 return -EINVAL; 2694 } else { 2695 return 0; 2696 } 2697 } 2698 2699 /** 2700 * i40e_vc_process_vf_msg 2701 * @pf: pointer to the PF structure 2702 * @vf_id: source VF id 2703 * @msg: pointer to the msg buffer 2704 * @msglen: msg length 2705 * @msghndl: msg handle 2706 * 2707 * called from the common aeq/arq handler to 2708 * process request from VF 2709 **/ 2710 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 2711 u32 v_retval, u8 *msg, u16 msglen) 2712 { 2713 struct i40e_hw *hw = &pf->hw; 2714 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 2715 struct i40e_vf *vf; 2716 int ret; 2717 2718 pf->vf_aq_requests++; 2719 if (local_vf_id >= pf->num_alloc_vfs) 2720 return -EINVAL; 2721 vf = &(pf->vf[local_vf_id]); 2722 /* perform basic checks on the msg */ 2723 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); 2724 2725 if (ret) { 2726 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 2727 local_vf_id, v_opcode, msglen); 2728 return ret; 2729 } 2730 2731 switch (v_opcode) { 2732 case I40E_VIRTCHNL_OP_VERSION: 2733 ret = i40e_vc_get_version_msg(vf, msg); 2734 break; 2735 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2736 ret = i40e_vc_get_vf_resources_msg(vf, msg); 2737 break; 2738 case I40E_VIRTCHNL_OP_RESET_VF: 2739 i40e_vc_reset_vf_msg(vf); 2740 ret = 0; 2741 break; 2742 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2743 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); 2744 break; 2745 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2746 ret = i40e_vc_config_queues_msg(vf, msg, msglen); 2747 break; 2748 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2749 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); 2750 break; 2751 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2752 ret = i40e_vc_enable_queues_msg(vf, msg, msglen); 2753 i40e_vc_notify_vf_link_state(vf); 2754 break; 2755 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2756 ret = i40e_vc_disable_queues_msg(vf, msg, msglen); 2757 break; 2758 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2759 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); 2760 break; 2761 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2762 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); 2763 break; 2764 case I40E_VIRTCHNL_OP_ADD_VLAN: 2765 ret = i40e_vc_add_vlan_msg(vf, msg, msglen); 2766 break; 2767 case I40E_VIRTCHNL_OP_DEL_VLAN: 2768 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); 2769 break; 2770 case I40E_VIRTCHNL_OP_GET_STATS: 2771 ret = i40e_vc_get_stats_msg(vf, msg, msglen); 2772 break; 2773 case I40E_VIRTCHNL_OP_IWARP: 2774 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 2775 break; 2776 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2777 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true); 2778 break; 2779 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2780 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false); 2781 break; 2782 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2783 ret = i40e_vc_config_rss_key(vf, msg, msglen); 2784 break; 2785 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2786 ret = i40e_vc_config_rss_lut(vf, msg, msglen); 2787 break; 2788 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2789 ret = i40e_vc_get_rss_hena(vf, msg, msglen); 2790 break; 2791 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2792 ret = i40e_vc_set_rss_hena(vf, msg, msglen); 2793 break; 2794 2795 case I40E_VIRTCHNL_OP_UNKNOWN: 2796 default: 2797 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 2798 v_opcode, local_vf_id); 2799 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 2800 I40E_ERR_NOT_IMPLEMENTED); 2801 break; 2802 } 2803 2804 return ret; 2805 } 2806 2807 /** 2808 * i40e_vc_process_vflr_event 2809 * @pf: pointer to the PF structure 2810 * 2811 * called from the vlfr irq handler to 2812 * free up VF resources and state variables 2813 **/ 2814 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 2815 { 2816 struct i40e_hw *hw = &pf->hw; 2817 u32 reg, reg_idx, bit_idx; 2818 struct i40e_vf *vf; 2819 int vf_id; 2820 2821 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) 2822 return 0; 2823 2824 /* Re-enable the VFLR interrupt cause here, before looking for which 2825 * VF got reset. Otherwise, if another VF gets a reset while the 2826 * first one is being processed, that interrupt will be lost, and 2827 * that VF will be stuck in reset forever. 2828 */ 2829 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 2830 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 2831 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 2832 i40e_flush(hw); 2833 2834 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); 2835 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 2836 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 2837 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 2838 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 2839 vf = &pf->vf[vf_id]; 2840 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 2841 if (reg & BIT(bit_idx)) 2842 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 2843 i40e_reset_vf(vf, true); 2844 } 2845 2846 return 0; 2847 } 2848 2849 /** 2850 * i40e_ndo_set_vf_mac 2851 * @netdev: network interface device structure 2852 * @vf_id: VF identifier 2853 * @mac: mac address 2854 * 2855 * program VF mac address 2856 **/ 2857 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 2858 { 2859 struct i40e_netdev_priv *np = netdev_priv(netdev); 2860 struct i40e_vsi *vsi = np->vsi; 2861 struct i40e_pf *pf = vsi->back; 2862 struct i40e_mac_filter *f; 2863 struct i40e_vf *vf; 2864 int ret = 0; 2865 int bkt; 2866 2867 /* validate the request */ 2868 if (vf_id >= pf->num_alloc_vfs) { 2869 dev_err(&pf->pdev->dev, 2870 "Invalid VF Identifier %d\n", vf_id); 2871 ret = -EINVAL; 2872 goto error_param; 2873 } 2874 2875 vf = &(pf->vf[vf_id]); 2876 vsi = pf->vsi[vf->lan_vsi_idx]; 2877 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 2878 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2879 vf_id); 2880 ret = -EAGAIN; 2881 goto error_param; 2882 } 2883 2884 if (is_multicast_ether_addr(mac)) { 2885 dev_err(&pf->pdev->dev, 2886 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 2887 ret = -EINVAL; 2888 goto error_param; 2889 } 2890 2891 /* Lock once because below invoked function add/del_filter requires 2892 * mac_filter_hash_lock to be held 2893 */ 2894 spin_lock_bh(&vsi->mac_filter_hash_lock); 2895 2896 /* delete the temporary mac address */ 2897 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 2898 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2899 2900 /* Delete all the filters for this VSI - we're going to kill it 2901 * anyway. 2902 */ 2903 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) 2904 __i40e_del_filter(vsi, f); 2905 2906 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2907 2908 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); 2909 /* program mac filter */ 2910 if (i40e_sync_vsi_filters(vsi)) { 2911 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 2912 ret = -EIO; 2913 goto error_param; 2914 } 2915 ether_addr_copy(vf->default_lan_addr.addr, mac); 2916 vf->pf_set_mac = true; 2917 /* Force the VF driver stop so it has to reload with new MAC address */ 2918 i40e_vc_disable_vf(pf, vf); 2919 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); 2920 2921 error_param: 2922 return ret; 2923 } 2924 2925 /** 2926 * i40e_ndo_set_vf_port_vlan 2927 * @netdev: network interface device structure 2928 * @vf_id: VF identifier 2929 * @vlan_id: mac address 2930 * @qos: priority setting 2931 * @vlan_proto: vlan protocol 2932 * 2933 * program VF vlan id and/or qos 2934 **/ 2935 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 2936 u16 vlan_id, u8 qos, __be16 vlan_proto) 2937 { 2938 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 2939 struct i40e_netdev_priv *np = netdev_priv(netdev); 2940 struct i40e_pf *pf = np->vsi->back; 2941 struct i40e_vsi *vsi; 2942 struct i40e_vf *vf; 2943 int ret = 0; 2944 2945 /* validate the request */ 2946 if (vf_id >= pf->num_alloc_vfs) { 2947 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2948 ret = -EINVAL; 2949 goto error_pvid; 2950 } 2951 2952 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 2953 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 2954 ret = -EINVAL; 2955 goto error_pvid; 2956 } 2957 2958 if (vlan_proto != htons(ETH_P_8021Q)) { 2959 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 2960 ret = -EPROTONOSUPPORT; 2961 goto error_pvid; 2962 } 2963 2964 vf = &(pf->vf[vf_id]); 2965 vsi = pf->vsi[vf->lan_vsi_idx]; 2966 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 2967 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2968 vf_id); 2969 ret = -EAGAIN; 2970 goto error_pvid; 2971 } 2972 2973 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 2974 /* duplicate request, so just return success */ 2975 goto error_pvid; 2976 2977 /* Locked once because multiple functions below iterate list */ 2978 spin_lock_bh(&vsi->mac_filter_hash_lock); 2979 2980 if (le16_to_cpu(vsi->info.pvid) == 0 && i40e_is_vsi_in_vlan(vsi)) { 2981 dev_err(&pf->pdev->dev, 2982 "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", 2983 vf_id); 2984 /* Administrator Error - knock the VF offline until he does 2985 * the right thing by reconfiguring his network correctly 2986 * and then reloading the VF driver. 2987 */ 2988 i40e_vc_disable_vf(pf, vf); 2989 /* During reset the VF got a new VSI, so refresh the pointer. */ 2990 vsi = pf->vsi[vf->lan_vsi_idx]; 2991 } 2992 2993 /* Check for condition where there was already a port VLAN ID 2994 * filter set and now it is being deleted by setting it to zero. 2995 * Additionally check for the condition where there was a port 2996 * VLAN but now there is a new and different port VLAN being set. 2997 * Before deleting all the old VLAN filters we must add new ones 2998 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 2999 * MAC addresses deleted. 3000 */ 3001 if ((!(vlan_id || qos) || 3002 vlanprio != le16_to_cpu(vsi->info.pvid)) && 3003 vsi->info.pvid) { 3004 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 3005 if (ret) { 3006 dev_info(&vsi->back->pdev->dev, 3007 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 3008 vsi->back->hw.aq.asq_last_status); 3009 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3010 goto error_pvid; 3011 } 3012 } 3013 3014 if (vsi->info.pvid) { 3015 /* remove all filters on the old VLAN */ 3016 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 3017 VLAN_VID_MASK)); 3018 } 3019 3020 if (vlan_id || qos) 3021 ret = i40e_vsi_add_pvid(vsi, vlanprio); 3022 else 3023 i40e_vsi_remove_pvid(vsi); 3024 3025 if (vlan_id) { 3026 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 3027 vlan_id, qos, vf_id); 3028 3029 /* add new VLAN filter for each MAC */ 3030 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 3031 if (ret) { 3032 dev_info(&vsi->back->pdev->dev, 3033 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 3034 vsi->back->hw.aq.asq_last_status); 3035 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3036 goto error_pvid; 3037 } 3038 3039 /* remove the previously added non-VLAN MAC filters */ 3040 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 3041 } 3042 3043 spin_unlock_bh(&vsi->mac_filter_hash_lock); 3044 3045 /* Schedule the worker thread to take care of applying changes */ 3046 i40e_service_event_schedule(vsi->back); 3047 3048 if (ret) { 3049 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 3050 goto error_pvid; 3051 } 3052 3053 /* The Port VLAN needs to be saved across resets the same as the 3054 * default LAN MAC address. 3055 */ 3056 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 3057 ret = 0; 3058 3059 error_pvid: 3060 return ret; 3061 } 3062 3063 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ 3064 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ 3065 /** 3066 * i40e_ndo_set_vf_bw 3067 * @netdev: network interface device structure 3068 * @vf_id: VF identifier 3069 * @tx_rate: Tx rate 3070 * 3071 * configure VF Tx rate 3072 **/ 3073 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 3074 int max_tx_rate) 3075 { 3076 struct i40e_netdev_priv *np = netdev_priv(netdev); 3077 struct i40e_pf *pf = np->vsi->back; 3078 struct i40e_vsi *vsi; 3079 struct i40e_vf *vf; 3080 int speed = 0; 3081 int ret = 0; 3082 3083 /* validate the request */ 3084 if (vf_id >= pf->num_alloc_vfs) { 3085 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); 3086 ret = -EINVAL; 3087 goto error; 3088 } 3089 3090 if (min_tx_rate) { 3091 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 3092 min_tx_rate, vf_id); 3093 return -EINVAL; 3094 } 3095 3096 vf = &(pf->vf[vf_id]); 3097 vsi = pf->vsi[vf->lan_vsi_idx]; 3098 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 3099 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3100 vf_id); 3101 ret = -EAGAIN; 3102 goto error; 3103 } 3104 3105 switch (pf->hw.phy.link_info.link_speed) { 3106 case I40E_LINK_SPEED_40GB: 3107 speed = 40000; 3108 break; 3109 case I40E_LINK_SPEED_25GB: 3110 speed = 25000; 3111 break; 3112 case I40E_LINK_SPEED_20GB: 3113 speed = 20000; 3114 break; 3115 case I40E_LINK_SPEED_10GB: 3116 speed = 10000; 3117 break; 3118 case I40E_LINK_SPEED_1GB: 3119 speed = 1000; 3120 break; 3121 default: 3122 break; 3123 } 3124 3125 if (max_tx_rate > speed) { 3126 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.\n", 3127 max_tx_rate, vf->vf_id); 3128 ret = -EINVAL; 3129 goto error; 3130 } 3131 3132 if ((max_tx_rate < 50) && (max_tx_rate > 0)) { 3133 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); 3134 max_tx_rate = 50; 3135 } 3136 3137 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ 3138 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 3139 max_tx_rate / I40E_BW_CREDIT_DIVISOR, 3140 I40E_MAX_BW_INACTIVE_ACCUM, NULL); 3141 if (ret) { 3142 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", 3143 ret); 3144 ret = -EIO; 3145 goto error; 3146 } 3147 vf->tx_rate = max_tx_rate; 3148 error: 3149 return ret; 3150 } 3151 3152 /** 3153 * i40e_ndo_get_vf_config 3154 * @netdev: network interface device structure 3155 * @vf_id: VF identifier 3156 * @ivi: VF configuration structure 3157 * 3158 * return VF configuration 3159 **/ 3160 int i40e_ndo_get_vf_config(struct net_device *netdev, 3161 int vf_id, struct ifla_vf_info *ivi) 3162 { 3163 struct i40e_netdev_priv *np = netdev_priv(netdev); 3164 struct i40e_vsi *vsi = np->vsi; 3165 struct i40e_pf *pf = vsi->back; 3166 struct i40e_vf *vf; 3167 int ret = 0; 3168 3169 /* validate the request */ 3170 if (vf_id >= pf->num_alloc_vfs) { 3171 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3172 ret = -EINVAL; 3173 goto error_param; 3174 } 3175 3176 vf = &(pf->vf[vf_id]); 3177 /* first vsi is always the LAN vsi */ 3178 vsi = pf->vsi[vf->lan_vsi_idx]; 3179 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 3180 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3181 vf_id); 3182 ret = -EAGAIN; 3183 goto error_param; 3184 } 3185 3186 ivi->vf = vf_id; 3187 3188 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 3189 3190 ivi->max_tx_rate = vf->tx_rate; 3191 ivi->min_tx_rate = 0; 3192 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 3193 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 3194 I40E_VLAN_PRIORITY_SHIFT; 3195 if (vf->link_forced == false) 3196 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 3197 else if (vf->link_up == true) 3198 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 3199 else 3200 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 3201 ivi->spoofchk = vf->spoofchk; 3202 ivi->trusted = vf->trusted; 3203 ret = 0; 3204 3205 error_param: 3206 return ret; 3207 } 3208 3209 /** 3210 * i40e_ndo_set_vf_link_state 3211 * @netdev: network interface device structure 3212 * @vf_id: VF identifier 3213 * @link: required link state 3214 * 3215 * Set the link state of a specified VF, regardless of physical link state 3216 **/ 3217 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 3218 { 3219 struct i40e_netdev_priv *np = netdev_priv(netdev); 3220 struct i40e_pf *pf = np->vsi->back; 3221 struct i40e_virtchnl_pf_event pfe; 3222 struct i40e_hw *hw = &pf->hw; 3223 struct i40e_vf *vf; 3224 int abs_vf_id; 3225 int ret = 0; 3226 3227 /* validate the request */ 3228 if (vf_id >= pf->num_alloc_vfs) { 3229 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3230 ret = -EINVAL; 3231 goto error_out; 3232 } 3233 3234 vf = &pf->vf[vf_id]; 3235 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 3236 3237 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; 3238 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; 3239 3240 switch (link) { 3241 case IFLA_VF_LINK_STATE_AUTO: 3242 vf->link_forced = false; 3243 pfe.event_data.link_event.link_status = 3244 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 3245 pfe.event_data.link_event.link_speed = 3246 pf->hw.phy.link_info.link_speed; 3247 break; 3248 case IFLA_VF_LINK_STATE_ENABLE: 3249 vf->link_forced = true; 3250 vf->link_up = true; 3251 pfe.event_data.link_event.link_status = true; 3252 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; 3253 break; 3254 case IFLA_VF_LINK_STATE_DISABLE: 3255 vf->link_forced = true; 3256 vf->link_up = false; 3257 pfe.event_data.link_event.link_status = false; 3258 pfe.event_data.link_event.link_speed = 0; 3259 break; 3260 default: 3261 ret = -EINVAL; 3262 goto error_out; 3263 } 3264 /* Notify the VF of its new link state */ 3265 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 3266 0, (u8 *)&pfe, sizeof(pfe), NULL); 3267 3268 error_out: 3269 return ret; 3270 } 3271 3272 /** 3273 * i40e_ndo_set_vf_spoofchk 3274 * @netdev: network interface device structure 3275 * @vf_id: VF identifier 3276 * @enable: flag to enable or disable feature 3277 * 3278 * Enable or disable VF spoof checking 3279 **/ 3280 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 3281 { 3282 struct i40e_netdev_priv *np = netdev_priv(netdev); 3283 struct i40e_vsi *vsi = np->vsi; 3284 struct i40e_pf *pf = vsi->back; 3285 struct i40e_vsi_context ctxt; 3286 struct i40e_hw *hw = &pf->hw; 3287 struct i40e_vf *vf; 3288 int ret = 0; 3289 3290 /* validate the request */ 3291 if (vf_id >= pf->num_alloc_vfs) { 3292 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3293 ret = -EINVAL; 3294 goto out; 3295 } 3296 3297 vf = &(pf->vf[vf_id]); 3298 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { 3299 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3300 vf_id); 3301 ret = -EAGAIN; 3302 goto out; 3303 } 3304 3305 if (enable == vf->spoofchk) 3306 goto out; 3307 3308 vf->spoofchk = enable; 3309 memset(&ctxt, 0, sizeof(ctxt)); 3310 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 3311 ctxt.pf_num = pf->hw.pf_id; 3312 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 3313 if (enable) 3314 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 3315 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 3316 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 3317 if (ret) { 3318 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 3319 ret); 3320 ret = -EIO; 3321 } 3322 out: 3323 return ret; 3324 } 3325 3326 /** 3327 * i40e_ndo_set_vf_trust 3328 * @netdev: network interface device structure of the pf 3329 * @vf_id: VF identifier 3330 * @setting: trust setting 3331 * 3332 * Enable or disable VF trust setting 3333 **/ 3334 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 3335 { 3336 struct i40e_netdev_priv *np = netdev_priv(netdev); 3337 struct i40e_pf *pf = np->vsi->back; 3338 struct i40e_vf *vf; 3339 int ret = 0; 3340 3341 /* validate the request */ 3342 if (vf_id >= pf->num_alloc_vfs) { 3343 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3344 return -EINVAL; 3345 } 3346 3347 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3348 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 3349 return -EINVAL; 3350 } 3351 3352 vf = &pf->vf[vf_id]; 3353 3354 if (!vf) 3355 return -EINVAL; 3356 if (setting == vf->trusted) 3357 goto out; 3358 3359 vf->trusted = setting; 3360 i40e_vc_notify_vf_reset(vf); 3361 i40e_reset_vf(vf, false); 3362 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 3363 vf_id, setting ? "" : "un"); 3364 out: 3365 return ret; 3366 } 3367