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 + 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_STAT_INIT, &vf->vf_states) && 54 !test_bit(I40E_VF_STAT_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_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 + 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_STAT_INIT, &vf->vf_states) && 141 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) 142 return; 143 144 abs_vf_id = vf->vf_id + 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 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 506 vsi = i40e_find_vsi_from_id(pf, vsi_id); 507 508 /* clear the context structure first */ 509 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); 510 511 /* only set the required fields */ 512 tx_ctx.base = info->dma_ring_addr / 128; 513 tx_ctx.qlen = info->ring_len; 514 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); 515 tx_ctx.rdylist_act = 0; 516 tx_ctx.head_wb_ena = info->headwb_enabled; 517 tx_ctx.head_wb_addr = info->dma_headwb_addr; 518 519 /* clear the context in the HMC */ 520 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); 521 if (ret) { 522 dev_err(&pf->pdev->dev, 523 "Failed to clear VF LAN Tx queue context %d, error: %d\n", 524 pf_queue_id, ret); 525 ret = -ENOENT; 526 goto error_context; 527 } 528 529 /* set the context in the HMC */ 530 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); 531 if (ret) { 532 dev_err(&pf->pdev->dev, 533 "Failed to set VF LAN Tx queue context %d error: %d\n", 534 pf_queue_id, ret); 535 ret = -ENOENT; 536 goto error_context; 537 } 538 539 /* associate this queue with the PCI VF function */ 540 qtx_ctl = I40E_QTX_CTL_VF_QUEUE; 541 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) 542 & I40E_QTX_CTL_PF_INDX_MASK); 543 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) 544 << I40E_QTX_CTL_VFVM_INDX_SHIFT) 545 & I40E_QTX_CTL_VFVM_INDX_MASK); 546 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); 547 i40e_flush(hw); 548 549 error_context: 550 return ret; 551 } 552 553 /** 554 * i40e_config_vsi_rx_queue 555 * @vf: pointer to the VF info 556 * @vsi_id: id of VSI as provided by the FW 557 * @vsi_queue_id: vsi relative queue index 558 * @info: config. info 559 * 560 * configure rx queue 561 **/ 562 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, 563 u16 vsi_queue_id, 564 struct i40e_virtchnl_rxq_info *info) 565 { 566 struct i40e_pf *pf = vf->pf; 567 struct i40e_hw *hw = &pf->hw; 568 struct i40e_hmc_obj_rxq rx_ctx; 569 u16 pf_queue_id; 570 int ret = 0; 571 572 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); 573 574 /* clear the context structure first */ 575 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); 576 577 /* only set the required fields */ 578 rx_ctx.base = info->dma_ring_addr / 128; 579 rx_ctx.qlen = info->ring_len; 580 581 if (info->splithdr_enabled) { 582 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | 583 I40E_RX_SPLIT_IP | 584 I40E_RX_SPLIT_TCP_UDP | 585 I40E_RX_SPLIT_SCTP; 586 /* header length validation */ 587 if (info->hdr_size > ((2 * 1024) - 64)) { 588 ret = -EINVAL; 589 goto error_param; 590 } 591 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; 592 593 /* set splitalways mode 10b */ 594 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; 595 } 596 597 /* databuffer length validation */ 598 if (info->databuffer_size > ((16 * 1024) - 128)) { 599 ret = -EINVAL; 600 goto error_param; 601 } 602 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; 603 604 /* max pkt. length validation */ 605 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { 606 ret = -EINVAL; 607 goto error_param; 608 } 609 rx_ctx.rxmax = info->max_pkt_size; 610 611 /* enable 32bytes desc always */ 612 rx_ctx.dsize = 1; 613 614 /* default values */ 615 rx_ctx.lrxqthresh = 2; 616 rx_ctx.crcstrip = 1; 617 rx_ctx.prefena = 1; 618 rx_ctx.l2tsel = 1; 619 620 /* clear the context in the HMC */ 621 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); 622 if (ret) { 623 dev_err(&pf->pdev->dev, 624 "Failed to clear VF LAN Rx queue context %d, error: %d\n", 625 pf_queue_id, ret); 626 ret = -ENOENT; 627 goto error_param; 628 } 629 630 /* set the context in the HMC */ 631 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); 632 if (ret) { 633 dev_err(&pf->pdev->dev, 634 "Failed to set VF LAN Rx queue context %d error: %d\n", 635 pf_queue_id, ret); 636 ret = -ENOENT; 637 goto error_param; 638 } 639 640 error_param: 641 return ret; 642 } 643 644 /** 645 * i40e_alloc_vsi_res 646 * @vf: pointer to the VF info 647 * @type: type of VSI to allocate 648 * 649 * alloc VF vsi context & resources 650 **/ 651 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type) 652 { 653 struct i40e_mac_filter *f = NULL; 654 struct i40e_pf *pf = vf->pf; 655 struct i40e_vsi *vsi; 656 int ret = 0; 657 658 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id); 659 660 if (!vsi) { 661 dev_err(&pf->pdev->dev, 662 "add vsi failed for VF %d, aq_err %d\n", 663 vf->vf_id, pf->hw.aq.asq_last_status); 664 ret = -ENOENT; 665 goto error_alloc_vsi_res; 666 } 667 if (type == I40E_VSI_SRIOV) { 668 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 669 670 vf->lan_vsi_idx = vsi->idx; 671 vf->lan_vsi_id = vsi->id; 672 /* If the port VLAN has been configured and then the 673 * VF driver was removed then the VSI port VLAN 674 * configuration was destroyed. Check if there is 675 * a port VLAN and restore the VSI configuration if 676 * needed. 677 */ 678 if (vf->port_vlan_id) 679 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 680 681 spin_lock_bh(&vsi->mac_filter_list_lock); 682 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 683 f = i40e_add_filter(vsi, vf->default_lan_addr.addr, 684 vf->port_vlan_id ? vf->port_vlan_id : -1, 685 true, false); 686 if (!f) 687 dev_info(&pf->pdev->dev, 688 "Could not add MAC filter %pM for VF %d\n", 689 vf->default_lan_addr.addr, vf->vf_id); 690 } 691 f = i40e_add_filter(vsi, brdcast, 692 vf->port_vlan_id ? vf->port_vlan_id : -1, 693 true, false); 694 if (!f) 695 dev_info(&pf->pdev->dev, 696 "Could not allocate VF broadcast filter\n"); 697 spin_unlock_bh(&vsi->mac_filter_list_lock); 698 } 699 700 /* program mac filter */ 701 ret = i40e_sync_vsi_filters(vsi); 702 if (ret) 703 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 704 705 /* Set VF bandwidth if specified */ 706 if (vf->tx_rate) { 707 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 708 vf->tx_rate / 50, 0, NULL); 709 if (ret) 710 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 711 vf->vf_id, ret); 712 } 713 714 error_alloc_vsi_res: 715 return ret; 716 } 717 718 /** 719 * i40e_enable_vf_mappings 720 * @vf: pointer to the VF info 721 * 722 * enable VF mappings 723 **/ 724 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 725 { 726 struct i40e_pf *pf = vf->pf; 727 struct i40e_hw *hw = &pf->hw; 728 u32 reg, total_queue_pairs = 0; 729 int j; 730 731 /* Tell the hardware we're using noncontiguous mapping. HW requires 732 * that VF queues be mapped using this method, even when they are 733 * contiguous in real life 734 */ 735 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 736 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 737 738 /* enable VF vplan_qtable mappings */ 739 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 740 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 741 742 /* map PF queues to VF queues */ 743 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) { 744 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j); 745 746 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 747 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); 748 total_queue_pairs++; 749 } 750 751 /* map PF queues to VSI */ 752 for (j = 0; j < 7; j++) { 753 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) { 754 reg = 0x07FF07FF; /* unused */ 755 } else { 756 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 757 j * 2); 758 reg = qid; 759 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 760 (j * 2) + 1); 761 reg |= qid << 16; 762 } 763 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), 764 reg); 765 } 766 767 i40e_flush(hw); 768 } 769 770 /** 771 * i40e_disable_vf_mappings 772 * @vf: pointer to the VF info 773 * 774 * disable VF mappings 775 **/ 776 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 777 { 778 struct i40e_pf *pf = vf->pf; 779 struct i40e_hw *hw = &pf->hw; 780 int i; 781 782 /* disable qp mappings */ 783 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 784 for (i = 0; i < I40E_MAX_VSI_QP; i++) 785 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 786 I40E_QUEUE_END_OF_LIST); 787 i40e_flush(hw); 788 } 789 790 /** 791 * i40e_free_vf_res 792 * @vf: pointer to the VF info 793 * 794 * free VF resources 795 **/ 796 static void i40e_free_vf_res(struct i40e_vf *vf) 797 { 798 struct i40e_pf *pf = vf->pf; 799 struct i40e_hw *hw = &pf->hw; 800 u32 reg_idx, reg; 801 int i, msix_vf; 802 803 /* free vsi & disconnect it from the parent uplink */ 804 if (vf->lan_vsi_idx) { 805 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 806 vf->lan_vsi_idx = 0; 807 vf->lan_vsi_id = 0; 808 } 809 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 810 811 /* disable interrupts so the VF starts in a known state */ 812 for (i = 0; i < msix_vf; i++) { 813 /* format is same for both registers */ 814 if (0 == i) 815 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 816 else 817 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 818 (vf->vf_id)) 819 + (i - 1)); 820 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 821 i40e_flush(hw); 822 } 823 824 /* clear the irq settings */ 825 for (i = 0; i < msix_vf; i++) { 826 /* format is same for both registers */ 827 if (0 == i) 828 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 829 else 830 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 831 (vf->vf_id)) 832 + (i - 1)); 833 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 834 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 835 wr32(hw, reg_idx, reg); 836 i40e_flush(hw); 837 } 838 /* reset some of the state varibles keeping 839 * track of the resources 840 */ 841 vf->num_queue_pairs = 0; 842 vf->vf_states = 0; 843 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states); 844 } 845 846 /** 847 * i40e_alloc_vf_res 848 * @vf: pointer to the VF info 849 * 850 * allocate VF resources 851 **/ 852 static int i40e_alloc_vf_res(struct i40e_vf *vf) 853 { 854 struct i40e_pf *pf = vf->pf; 855 int total_queue_pairs = 0; 856 int ret; 857 858 /* allocate hw vsi context & associated resources */ 859 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); 860 if (ret) 861 goto error_alloc; 862 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 863 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 864 865 /* store the total qps number for the runtime 866 * VF req validation 867 */ 868 vf->num_queue_pairs = total_queue_pairs; 869 870 /* VF is now completely initialized */ 871 set_bit(I40E_VF_STAT_INIT, &vf->vf_states); 872 873 error_alloc: 874 if (ret) 875 i40e_free_vf_res(vf); 876 877 return ret; 878 } 879 880 #define VF_DEVICE_STATUS 0xAA 881 #define VF_TRANS_PENDING_MASK 0x20 882 /** 883 * i40e_quiesce_vf_pci 884 * @vf: pointer to the VF structure 885 * 886 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 887 * if the transactions never clear. 888 **/ 889 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 890 { 891 struct i40e_pf *pf = vf->pf; 892 struct i40e_hw *hw = &pf->hw; 893 int vf_abs_id, i; 894 u32 reg; 895 896 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 897 898 wr32(hw, I40E_PF_PCI_CIAA, 899 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 900 for (i = 0; i < 100; i++) { 901 reg = rd32(hw, I40E_PF_PCI_CIAD); 902 if ((reg & VF_TRANS_PENDING_MASK) == 0) 903 return 0; 904 udelay(1); 905 } 906 return -EIO; 907 } 908 909 /** 910 * i40e_reset_vf 911 * @vf: pointer to the VF structure 912 * @flr: VFLR was issued or not 913 * 914 * reset the VF 915 **/ 916 void i40e_reset_vf(struct i40e_vf *vf, bool flr) 917 { 918 struct i40e_pf *pf = vf->pf; 919 struct i40e_hw *hw = &pf->hw; 920 bool rsd = false; 921 int i; 922 u32 reg; 923 924 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 925 return; 926 927 /* warn the VF */ 928 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 929 930 /* In the case of a VFLR, the HW has already reset the VF and we 931 * just need to clean up, so don't hit the VFRTRIG register. 932 */ 933 if (!flr) { 934 /* reset VF using VPGEN_VFRTRIG reg */ 935 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 936 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 937 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 938 i40e_flush(hw); 939 } 940 941 if (i40e_quiesce_vf_pci(vf)) 942 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 943 vf->vf_id); 944 945 /* poll VPGEN_VFRSTAT reg to make sure 946 * that reset is complete 947 */ 948 for (i = 0; i < 10; i++) { 949 /* VF reset requires driver to first reset the VF and then 950 * poll the status register to make sure that the reset 951 * completed successfully. Due to internal HW FIFO flushes, 952 * we must wait 10ms before the register will be valid. 953 */ 954 usleep_range(10000, 20000); 955 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 956 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 957 rsd = true; 958 break; 959 } 960 } 961 962 if (flr) 963 usleep_range(10000, 20000); 964 965 if (!rsd) 966 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 967 vf->vf_id); 968 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED); 969 /* clear the reset bit in the VPGEN_VFRTRIG reg */ 970 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 971 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 972 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 973 974 /* On initial reset, we won't have any queues */ 975 if (vf->lan_vsi_idx == 0) 976 goto complete_reset; 977 978 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false); 979 complete_reset: 980 /* reallocate VF resources to reset the VSI state */ 981 i40e_free_vf_res(vf); 982 if (!i40e_alloc_vf_res(vf)) { 983 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 984 i40e_enable_vf_mappings(vf); 985 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 986 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 987 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 988 } 989 /* tell the VF the reset is done */ 990 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); 991 i40e_flush(hw); 992 clear_bit(__I40E_VF_DISABLE, &pf->state); 993 } 994 995 /** 996 * i40e_free_vfs 997 * @pf: pointer to the PF structure 998 * 999 * free VF resources 1000 **/ 1001 void i40e_free_vfs(struct i40e_pf *pf) 1002 { 1003 struct i40e_hw *hw = &pf->hw; 1004 u32 reg_idx, bit_idx; 1005 int i, tmp, vf_id; 1006 1007 if (!pf->vf) 1008 return; 1009 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 1010 usleep_range(1000, 2000); 1011 1012 i40e_notify_client_of_vf_enable(pf, 0); 1013 for (i = 0; i < pf->num_alloc_vfs; i++) 1014 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1015 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx], 1016 false); 1017 1018 /* Disable IOV before freeing resources. This lets any VF drivers 1019 * running in the host get themselves cleaned up before we yank 1020 * the carpet out from underneath their feet. 1021 */ 1022 if (!pci_vfs_assigned(pf->pdev)) 1023 pci_disable_sriov(pf->pdev); 1024 else 1025 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1026 1027 msleep(20); /* let any messages in transit get finished up */ 1028 1029 /* free up VF resources */ 1030 tmp = pf->num_alloc_vfs; 1031 pf->num_alloc_vfs = 0; 1032 for (i = 0; i < tmp; i++) { 1033 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1034 i40e_free_vf_res(&pf->vf[i]); 1035 /* disable qp mappings */ 1036 i40e_disable_vf_mappings(&pf->vf[i]); 1037 } 1038 1039 kfree(pf->vf); 1040 pf->vf = NULL; 1041 1042 /* This check is for when the driver is unloaded while VFs are 1043 * assigned. Setting the number of VFs to 0 through sysfs is caught 1044 * before this function ever gets called. 1045 */ 1046 if (!pci_vfs_assigned(pf->pdev)) { 1047 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1048 * work correctly when SR-IOV gets re-enabled. 1049 */ 1050 for (vf_id = 0; vf_id < tmp; vf_id++) { 1051 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1052 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1053 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1054 } 1055 } 1056 clear_bit(__I40E_VF_DISABLE, &pf->state); 1057 } 1058 1059 #ifdef CONFIG_PCI_IOV 1060 /** 1061 * i40e_alloc_vfs 1062 * @pf: pointer to the PF structure 1063 * @num_alloc_vfs: number of VFs to allocate 1064 * 1065 * allocate VF resources 1066 **/ 1067 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1068 { 1069 struct i40e_vf *vfs; 1070 int i, ret = 0; 1071 1072 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1073 i40e_irq_dynamic_disable_icr0(pf); 1074 1075 /* Check to see if we're just allocating resources for extant VFs */ 1076 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1077 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1078 if (ret) { 1079 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1080 pf->num_alloc_vfs = 0; 1081 goto err_iov; 1082 } 1083 } 1084 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1085 /* allocate memory */ 1086 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1087 if (!vfs) { 1088 ret = -ENOMEM; 1089 goto err_alloc; 1090 } 1091 pf->vf = vfs; 1092 1093 /* apply default profile */ 1094 for (i = 0; i < num_alloc_vfs; i++) { 1095 vfs[i].pf = pf; 1096 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1097 vfs[i].vf_id = i; 1098 1099 /* assign default capabilities */ 1100 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1101 vfs[i].spoofchk = true; 1102 /* VF resources get allocated during reset */ 1103 i40e_reset_vf(&vfs[i], false); 1104 1105 } 1106 pf->num_alloc_vfs = num_alloc_vfs; 1107 1108 err_alloc: 1109 if (ret) 1110 i40e_free_vfs(pf); 1111 err_iov: 1112 /* Re-enable interrupt 0. */ 1113 i40e_irq_dynamic_enable_icr0(pf, false); 1114 return ret; 1115 } 1116 1117 #endif 1118 /** 1119 * i40e_pci_sriov_enable 1120 * @pdev: pointer to a pci_dev structure 1121 * @num_vfs: number of VFs to allocate 1122 * 1123 * Enable or change the number of VFs 1124 **/ 1125 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1126 { 1127 #ifdef CONFIG_PCI_IOV 1128 struct i40e_pf *pf = pci_get_drvdata(pdev); 1129 int pre_existing_vfs = pci_num_vf(pdev); 1130 int err = 0; 1131 1132 if (test_bit(__I40E_TESTING, &pf->state)) { 1133 dev_warn(&pdev->dev, 1134 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1135 err = -EPERM; 1136 goto err_out; 1137 } 1138 1139 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1140 i40e_free_vfs(pf); 1141 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1142 goto out; 1143 1144 if (num_vfs > pf->num_req_vfs) { 1145 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1146 num_vfs, pf->num_req_vfs); 1147 err = -EPERM; 1148 goto err_out; 1149 } 1150 1151 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1152 err = i40e_alloc_vfs(pf, num_vfs); 1153 if (err) { 1154 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1155 goto err_out; 1156 } 1157 1158 out: 1159 return num_vfs; 1160 1161 err_out: 1162 return err; 1163 #endif 1164 return 0; 1165 } 1166 1167 /** 1168 * i40e_pci_sriov_configure 1169 * @pdev: pointer to a pci_dev structure 1170 * @num_vfs: number of VFs to allocate 1171 * 1172 * Enable or change the number of VFs. Called when the user updates the number 1173 * of VFs in sysfs. 1174 **/ 1175 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1176 { 1177 struct i40e_pf *pf = pci_get_drvdata(pdev); 1178 1179 if (num_vfs) { 1180 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1181 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1182 i40e_do_reset_safe(pf, 1183 BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1184 } 1185 return i40e_pci_sriov_enable(pdev, num_vfs); 1186 } 1187 1188 if (!pci_vfs_assigned(pf->pdev)) { 1189 i40e_free_vfs(pf); 1190 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1191 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1192 } else { 1193 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1194 return -EINVAL; 1195 } 1196 return 0; 1197 } 1198 1199 /***********************virtual channel routines******************/ 1200 1201 /** 1202 * i40e_vc_send_msg_to_vf 1203 * @vf: pointer to the VF info 1204 * @v_opcode: virtual channel opcode 1205 * @v_retval: virtual channel return value 1206 * @msg: pointer to the msg buffer 1207 * @msglen: msg length 1208 * 1209 * send msg to VF 1210 **/ 1211 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1212 u32 v_retval, u8 *msg, u16 msglen) 1213 { 1214 struct i40e_pf *pf; 1215 struct i40e_hw *hw; 1216 int abs_vf_id; 1217 i40e_status aq_ret; 1218 1219 /* validate the request */ 1220 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1221 return -EINVAL; 1222 1223 pf = vf->pf; 1224 hw = &pf->hw; 1225 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1226 1227 /* single place to detect unsuccessful return values */ 1228 if (v_retval) { 1229 vf->num_invalid_msgs++; 1230 dev_err(&pf->pdev->dev, "VF %d failed opcode %d, error: %d\n", 1231 vf->vf_id, v_opcode, v_retval); 1232 if (vf->num_invalid_msgs > 1233 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1234 dev_err(&pf->pdev->dev, 1235 "Number of invalid messages exceeded for VF %d\n", 1236 vf->vf_id); 1237 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1238 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 1239 } 1240 } else { 1241 vf->num_valid_msgs++; 1242 /* reset the invalid counter, if a valid message is received. */ 1243 vf->num_invalid_msgs = 0; 1244 } 1245 1246 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1247 msg, msglen, NULL); 1248 if (aq_ret) { 1249 dev_err(&pf->pdev->dev, 1250 "Unable to send the message to VF %d aq_err %d\n", 1251 vf->vf_id, pf->hw.aq.asq_last_status); 1252 return -EIO; 1253 } 1254 1255 return 0; 1256 } 1257 1258 /** 1259 * i40e_vc_send_resp_to_vf 1260 * @vf: pointer to the VF info 1261 * @opcode: operation code 1262 * @retval: return value 1263 * 1264 * send resp msg to VF 1265 **/ 1266 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1267 enum i40e_virtchnl_ops opcode, 1268 i40e_status retval) 1269 { 1270 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1271 } 1272 1273 /** 1274 * i40e_vc_get_version_msg 1275 * @vf: pointer to the VF info 1276 * 1277 * called from the VF to request the API version used by the PF 1278 **/ 1279 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1280 { 1281 struct i40e_virtchnl_version_info info = { 1282 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR 1283 }; 1284 1285 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg; 1286 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1287 if (VF_IS_V10(vf)) 1288 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1289 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, 1290 I40E_SUCCESS, (u8 *)&info, 1291 sizeof(struct 1292 i40e_virtchnl_version_info)); 1293 } 1294 1295 /** 1296 * i40e_vc_get_vf_resources_msg 1297 * @vf: pointer to the VF info 1298 * @msg: pointer to the msg buffer 1299 * @msglen: msg length 1300 * 1301 * called from the VF to request its resources 1302 **/ 1303 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1304 { 1305 struct i40e_virtchnl_vf_resource *vfres = NULL; 1306 struct i40e_pf *pf = vf->pf; 1307 i40e_status aq_ret = 0; 1308 struct i40e_vsi *vsi; 1309 int i = 0, len = 0; 1310 int num_vsis = 1; 1311 int ret; 1312 1313 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 1314 aq_ret = I40E_ERR_PARAM; 1315 goto err; 1316 } 1317 1318 len = (sizeof(struct i40e_virtchnl_vf_resource) + 1319 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); 1320 1321 vfres = kzalloc(len, GFP_KERNEL); 1322 if (!vfres) { 1323 aq_ret = I40E_ERR_NO_MEMORY; 1324 len = 0; 1325 goto err; 1326 } 1327 if (VF_IS_V11(vf)) 1328 vf->driver_caps = *(u32 *)msg; 1329 else 1330 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 | 1331 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG | 1332 I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1333 1334 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; 1335 vsi = pf->vsi[vf->lan_vsi_idx]; 1336 if (!vsi->info.pvid) 1337 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1338 1339 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) && 1340 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) { 1341 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP; 1342 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states); 1343 } 1344 1345 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { 1346 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ) 1347 vfres->vf_offload_flags |= 1348 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1349 } else { 1350 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG; 1351 } 1352 1353 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1354 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1355 vfres->vf_offload_flags |= 1356 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1357 } 1358 1359 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) 1360 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1361 1362 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) { 1363 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1364 vfres->vf_offload_flags |= 1365 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1366 } 1367 1368 vfres->num_vsis = num_vsis; 1369 vfres->num_queue_pairs = vf->num_queue_pairs; 1370 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 1371 if (vf->lan_vsi_idx) { 1372 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id; 1373 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV; 1374 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs; 1375 /* VFs only use TC 0 */ 1376 vfres->vsi_res[i].qset_handle 1377 = le16_to_cpu(vsi->info.qs_handle[0]); 1378 ether_addr_copy(vfres->vsi_res[i].default_mac_addr, 1379 vf->default_lan_addr.addr); 1380 i++; 1381 } 1382 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 1383 1384 err: 1385 /* send the response back to the VF */ 1386 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, 1387 aq_ret, (u8 *)vfres, len); 1388 1389 kfree(vfres); 1390 return ret; 1391 } 1392 1393 /** 1394 * i40e_vc_reset_vf_msg 1395 * @vf: pointer to the VF info 1396 * @msg: pointer to the msg buffer 1397 * @msglen: msg length 1398 * 1399 * called from the VF to reset itself, 1400 * unlike other virtchnl messages, PF driver 1401 * doesn't send the response back to the VF 1402 **/ 1403 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 1404 { 1405 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) 1406 i40e_reset_vf(vf, false); 1407 } 1408 1409 /** 1410 * i40e_vc_config_promiscuous_mode_msg 1411 * @vf: pointer to the VF info 1412 * @msg: pointer to the msg buffer 1413 * @msglen: msg length 1414 * 1415 * called from the VF to configure the promiscuous mode of 1416 * VF vsis 1417 **/ 1418 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, 1419 u8 *msg, u16 msglen) 1420 { 1421 struct i40e_virtchnl_promisc_info *info = 1422 (struct i40e_virtchnl_promisc_info *)msg; 1423 struct i40e_pf *pf = vf->pf; 1424 struct i40e_hw *hw = &pf->hw; 1425 struct i40e_vsi *vsi; 1426 bool allmulti = false; 1427 i40e_status aq_ret; 1428 1429 vsi = i40e_find_vsi_from_id(pf, info->vsi_id); 1430 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1431 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || 1432 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || 1433 (vsi->type != I40E_VSI_FCOE)) { 1434 aq_ret = I40E_ERR_PARAM; 1435 goto error_param; 1436 } 1437 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) 1438 allmulti = true; 1439 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, 1440 allmulti, NULL); 1441 1442 error_param: 1443 /* send the response to the VF */ 1444 return i40e_vc_send_resp_to_vf(vf, 1445 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 1446 aq_ret); 1447 } 1448 1449 /** 1450 * i40e_vc_config_queues_msg 1451 * @vf: pointer to the VF info 1452 * @msg: pointer to the msg buffer 1453 * @msglen: msg length 1454 * 1455 * called from the VF to configure the rx/tx 1456 * queues 1457 **/ 1458 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1459 { 1460 struct i40e_virtchnl_vsi_queue_config_info *qci = 1461 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 1462 struct i40e_virtchnl_queue_pair_info *qpi; 1463 struct i40e_pf *pf = vf->pf; 1464 u16 vsi_id, vsi_queue_id; 1465 i40e_status aq_ret = 0; 1466 int i; 1467 1468 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1469 aq_ret = I40E_ERR_PARAM; 1470 goto error_param; 1471 } 1472 1473 vsi_id = qci->vsi_id; 1474 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1475 aq_ret = I40E_ERR_PARAM; 1476 goto error_param; 1477 } 1478 for (i = 0; i < qci->num_queue_pairs; i++) { 1479 qpi = &qci->qpair[i]; 1480 vsi_queue_id = qpi->txq.queue_id; 1481 if ((qpi->txq.vsi_id != vsi_id) || 1482 (qpi->rxq.vsi_id != vsi_id) || 1483 (qpi->rxq.queue_id != vsi_queue_id) || 1484 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { 1485 aq_ret = I40E_ERR_PARAM; 1486 goto error_param; 1487 } 1488 1489 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 1490 &qpi->rxq) || 1491 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 1492 &qpi->txq)) { 1493 aq_ret = I40E_ERR_PARAM; 1494 goto error_param; 1495 } 1496 } 1497 /* set vsi num_queue_pairs in use to num configured by VF */ 1498 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs; 1499 1500 error_param: 1501 /* send the response to the VF */ 1502 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, 1503 aq_ret); 1504 } 1505 1506 /** 1507 * i40e_vc_config_irq_map_msg 1508 * @vf: pointer to the VF info 1509 * @msg: pointer to the msg buffer 1510 * @msglen: msg length 1511 * 1512 * called from the VF to configure the irq to 1513 * queue map 1514 **/ 1515 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1516 { 1517 struct i40e_virtchnl_irq_map_info *irqmap_info = 1518 (struct i40e_virtchnl_irq_map_info *)msg; 1519 struct i40e_virtchnl_vector_map *map; 1520 u16 vsi_id, vsi_queue_id, vector_id; 1521 i40e_status aq_ret = 0; 1522 unsigned long tempmap; 1523 int i; 1524 1525 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1526 aq_ret = I40E_ERR_PARAM; 1527 goto error_param; 1528 } 1529 1530 for (i = 0; i < irqmap_info->num_vectors; i++) { 1531 map = &irqmap_info->vecmap[i]; 1532 1533 vector_id = map->vector_id; 1534 vsi_id = map->vsi_id; 1535 /* validate msg params */ 1536 if (!i40e_vc_isvalid_vector_id(vf, vector_id) || 1537 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1538 aq_ret = I40E_ERR_PARAM; 1539 goto error_param; 1540 } 1541 1542 /* lookout for the invalid queue index */ 1543 tempmap = map->rxq_map; 1544 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1545 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1546 vsi_queue_id)) { 1547 aq_ret = I40E_ERR_PARAM; 1548 goto error_param; 1549 } 1550 } 1551 1552 tempmap = map->txq_map; 1553 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1554 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1555 vsi_queue_id)) { 1556 aq_ret = I40E_ERR_PARAM; 1557 goto error_param; 1558 } 1559 } 1560 1561 i40e_config_irq_link_list(vf, vsi_id, map); 1562 } 1563 error_param: 1564 /* send the response to the VF */ 1565 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, 1566 aq_ret); 1567 } 1568 1569 /** 1570 * i40e_vc_enable_queues_msg 1571 * @vf: pointer to the VF info 1572 * @msg: pointer to the msg buffer 1573 * @msglen: msg length 1574 * 1575 * called from the VF to enable all or specific queue(s) 1576 **/ 1577 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1578 { 1579 struct i40e_virtchnl_queue_select *vqs = 1580 (struct i40e_virtchnl_queue_select *)msg; 1581 struct i40e_pf *pf = vf->pf; 1582 u16 vsi_id = vqs->vsi_id; 1583 i40e_status aq_ret = 0; 1584 1585 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1586 aq_ret = I40E_ERR_PARAM; 1587 goto error_param; 1588 } 1589 1590 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1591 aq_ret = I40E_ERR_PARAM; 1592 goto error_param; 1593 } 1594 1595 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1596 aq_ret = I40E_ERR_PARAM; 1597 goto error_param; 1598 } 1599 1600 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true)) 1601 aq_ret = I40E_ERR_TIMEOUT; 1602 error_param: 1603 /* send the response to the VF */ 1604 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, 1605 aq_ret); 1606 } 1607 1608 /** 1609 * i40e_vc_disable_queues_msg 1610 * @vf: pointer to the VF info 1611 * @msg: pointer to the msg buffer 1612 * @msglen: msg length 1613 * 1614 * called from the VF to disable all or specific 1615 * queue(s) 1616 **/ 1617 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1618 { 1619 struct i40e_virtchnl_queue_select *vqs = 1620 (struct i40e_virtchnl_queue_select *)msg; 1621 struct i40e_pf *pf = vf->pf; 1622 i40e_status aq_ret = 0; 1623 1624 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1625 aq_ret = I40E_ERR_PARAM; 1626 goto error_param; 1627 } 1628 1629 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1630 aq_ret = I40E_ERR_PARAM; 1631 goto error_param; 1632 } 1633 1634 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1635 aq_ret = I40E_ERR_PARAM; 1636 goto error_param; 1637 } 1638 1639 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false)) 1640 aq_ret = I40E_ERR_TIMEOUT; 1641 1642 error_param: 1643 /* send the response to the VF */ 1644 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, 1645 aq_ret); 1646 } 1647 1648 /** 1649 * i40e_vc_get_stats_msg 1650 * @vf: pointer to the VF info 1651 * @msg: pointer to the msg buffer 1652 * @msglen: msg length 1653 * 1654 * called from the VF to get vsi stats 1655 **/ 1656 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1657 { 1658 struct i40e_virtchnl_queue_select *vqs = 1659 (struct i40e_virtchnl_queue_select *)msg; 1660 struct i40e_pf *pf = vf->pf; 1661 struct i40e_eth_stats stats; 1662 i40e_status aq_ret = 0; 1663 struct i40e_vsi *vsi; 1664 1665 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 1666 1667 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1668 aq_ret = I40E_ERR_PARAM; 1669 goto error_param; 1670 } 1671 1672 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1673 aq_ret = I40E_ERR_PARAM; 1674 goto error_param; 1675 } 1676 1677 vsi = pf->vsi[vf->lan_vsi_idx]; 1678 if (!vsi) { 1679 aq_ret = I40E_ERR_PARAM; 1680 goto error_param; 1681 } 1682 i40e_update_eth_stats(vsi); 1683 stats = vsi->eth_stats; 1684 1685 error_param: 1686 /* send the response back to the VF */ 1687 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, 1688 (u8 *)&stats, sizeof(stats)); 1689 } 1690 1691 /** 1692 * i40e_check_vf_permission 1693 * @vf: pointer to the VF info 1694 * @macaddr: pointer to the MAC Address being checked 1695 * 1696 * Check if the VF has permission to add or delete unicast MAC address 1697 * filters and return error code -EPERM if not. Then check if the 1698 * address filter requested is broadcast or zero and if so return 1699 * an invalid MAC address error code. 1700 **/ 1701 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) 1702 { 1703 struct i40e_pf *pf = vf->pf; 1704 int ret = 0; 1705 1706 if (is_broadcast_ether_addr(macaddr) || 1707 is_zero_ether_addr(macaddr)) { 1708 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); 1709 ret = I40E_ERR_INVALID_MAC_ADDR; 1710 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && 1711 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { 1712 /* If the host VMM administrator has set the VF MAC address 1713 * administratively via the ndo_set_vf_mac command then deny 1714 * permission to the VF to add or delete unicast MAC addresses. 1715 * The VF may request to set the MAC address filter already 1716 * assigned to it so do not return an error in that case. 1717 */ 1718 dev_err(&pf->pdev->dev, 1719 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n"); 1720 ret = -EPERM; 1721 } 1722 return ret; 1723 } 1724 1725 /** 1726 * i40e_vc_add_mac_addr_msg 1727 * @vf: pointer to the VF info 1728 * @msg: pointer to the msg buffer 1729 * @msglen: msg length 1730 * 1731 * add guest mac address filter 1732 **/ 1733 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1734 { 1735 struct i40e_virtchnl_ether_addr_list *al = 1736 (struct i40e_virtchnl_ether_addr_list *)msg; 1737 struct i40e_pf *pf = vf->pf; 1738 struct i40e_vsi *vsi = NULL; 1739 u16 vsi_id = al->vsi_id; 1740 i40e_status ret = 0; 1741 int i; 1742 1743 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1744 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || 1745 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1746 ret = I40E_ERR_PARAM; 1747 goto error_param; 1748 } 1749 1750 for (i = 0; i < al->num_elements; i++) { 1751 ret = i40e_check_vf_permission(vf, al->list[i].addr); 1752 if (ret) 1753 goto error_param; 1754 } 1755 vsi = pf->vsi[vf->lan_vsi_idx]; 1756 1757 /* Lock once, because all function inside for loop accesses VSI's 1758 * MAC filter list which needs to be protected using same lock. 1759 */ 1760 spin_lock_bh(&vsi->mac_filter_list_lock); 1761 1762 /* add new addresses to the list */ 1763 for (i = 0; i < al->num_elements; i++) { 1764 struct i40e_mac_filter *f; 1765 1766 f = i40e_find_mac(vsi, al->list[i].addr, true, false); 1767 if (!f) { 1768 if (i40e_is_vsi_in_vlan(vsi)) 1769 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr, 1770 true, false); 1771 else 1772 f = i40e_add_filter(vsi, al->list[i].addr, -1, 1773 true, false); 1774 } 1775 1776 if (!f) { 1777 dev_err(&pf->pdev->dev, 1778 "Unable to add MAC filter %pM for VF %d\n", 1779 al->list[i].addr, vf->vf_id); 1780 ret = I40E_ERR_PARAM; 1781 spin_unlock_bh(&vsi->mac_filter_list_lock); 1782 goto error_param; 1783 } 1784 } 1785 spin_unlock_bh(&vsi->mac_filter_list_lock); 1786 1787 /* program the updated filter list */ 1788 ret = i40e_sync_vsi_filters(vsi); 1789 if (ret) 1790 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 1791 vf->vf_id, ret); 1792 1793 error_param: 1794 /* send the response to the VF */ 1795 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, 1796 ret); 1797 } 1798 1799 /** 1800 * i40e_vc_del_mac_addr_msg 1801 * @vf: pointer to the VF info 1802 * @msg: pointer to the msg buffer 1803 * @msglen: msg length 1804 * 1805 * remove guest mac address filter 1806 **/ 1807 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1808 { 1809 struct i40e_virtchnl_ether_addr_list *al = 1810 (struct i40e_virtchnl_ether_addr_list *)msg; 1811 struct i40e_pf *pf = vf->pf; 1812 struct i40e_vsi *vsi = NULL; 1813 u16 vsi_id = al->vsi_id; 1814 i40e_status ret = 0; 1815 int i; 1816 1817 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1818 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || 1819 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1820 ret = I40E_ERR_PARAM; 1821 goto error_param; 1822 } 1823 1824 for (i = 0; i < al->num_elements; i++) { 1825 if (is_broadcast_ether_addr(al->list[i].addr) || 1826 is_zero_ether_addr(al->list[i].addr)) { 1827 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 1828 al->list[i].addr, vf->vf_id); 1829 ret = I40E_ERR_INVALID_MAC_ADDR; 1830 goto error_param; 1831 } 1832 } 1833 vsi = pf->vsi[vf->lan_vsi_idx]; 1834 1835 spin_lock_bh(&vsi->mac_filter_list_lock); 1836 /* delete addresses from the list */ 1837 for (i = 0; i < al->num_elements; i++) 1838 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) { 1839 ret = I40E_ERR_INVALID_MAC_ADDR; 1840 spin_unlock_bh(&vsi->mac_filter_list_lock); 1841 goto error_param; 1842 } 1843 1844 spin_unlock_bh(&vsi->mac_filter_list_lock); 1845 1846 /* program the updated filter list */ 1847 ret = i40e_sync_vsi_filters(vsi); 1848 if (ret) 1849 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 1850 vf->vf_id, ret); 1851 1852 error_param: 1853 /* send the response to the VF */ 1854 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, 1855 ret); 1856 } 1857 1858 /** 1859 * i40e_vc_add_vlan_msg 1860 * @vf: pointer to the VF info 1861 * @msg: pointer to the msg buffer 1862 * @msglen: msg length 1863 * 1864 * program guest vlan id 1865 **/ 1866 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1867 { 1868 struct i40e_virtchnl_vlan_filter_list *vfl = 1869 (struct i40e_virtchnl_vlan_filter_list *)msg; 1870 struct i40e_pf *pf = vf->pf; 1871 struct i40e_vsi *vsi = NULL; 1872 u16 vsi_id = vfl->vsi_id; 1873 i40e_status aq_ret = 0; 1874 int i; 1875 1876 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1877 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || 1878 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1879 aq_ret = I40E_ERR_PARAM; 1880 goto error_param; 1881 } 1882 1883 for (i = 0; i < vfl->num_elements; i++) { 1884 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 1885 aq_ret = I40E_ERR_PARAM; 1886 dev_err(&pf->pdev->dev, 1887 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 1888 goto error_param; 1889 } 1890 } 1891 vsi = pf->vsi[vf->lan_vsi_idx]; 1892 if (vsi->info.pvid) { 1893 aq_ret = I40E_ERR_PARAM; 1894 goto error_param; 1895 } 1896 1897 i40e_vlan_stripping_enable(vsi); 1898 for (i = 0; i < vfl->num_elements; i++) { 1899 /* add new VLAN filter */ 1900 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 1901 1902 if (ret) 1903 dev_err(&pf->pdev->dev, 1904 "Unable to add VLAN filter %d for VF %d, error %d\n", 1905 vfl->vlan_id[i], vf->vf_id, ret); 1906 } 1907 1908 error_param: 1909 /* send the response to the VF */ 1910 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); 1911 } 1912 1913 /** 1914 * i40e_vc_remove_vlan_msg 1915 * @vf: pointer to the VF info 1916 * @msg: pointer to the msg buffer 1917 * @msglen: msg length 1918 * 1919 * remove programmed guest vlan id 1920 **/ 1921 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1922 { 1923 struct i40e_virtchnl_vlan_filter_list *vfl = 1924 (struct i40e_virtchnl_vlan_filter_list *)msg; 1925 struct i40e_pf *pf = vf->pf; 1926 struct i40e_vsi *vsi = NULL; 1927 u16 vsi_id = vfl->vsi_id; 1928 i40e_status aq_ret = 0; 1929 int i; 1930 1931 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1932 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) || 1933 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1934 aq_ret = I40E_ERR_PARAM; 1935 goto error_param; 1936 } 1937 1938 for (i = 0; i < vfl->num_elements; i++) { 1939 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 1940 aq_ret = I40E_ERR_PARAM; 1941 goto error_param; 1942 } 1943 } 1944 1945 vsi = pf->vsi[vf->lan_vsi_idx]; 1946 if (vsi->info.pvid) { 1947 aq_ret = I40E_ERR_PARAM; 1948 goto error_param; 1949 } 1950 1951 for (i = 0; i < vfl->num_elements; i++) { 1952 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 1953 1954 if (ret) 1955 dev_err(&pf->pdev->dev, 1956 "Unable to delete VLAN filter %d for VF %d, error %d\n", 1957 vfl->vlan_id[i], vf->vf_id, ret); 1958 } 1959 1960 error_param: 1961 /* send the response to the VF */ 1962 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); 1963 } 1964 1965 /** 1966 * i40e_vc_iwarp_msg 1967 * @vf: pointer to the VF info 1968 * @msg: pointer to the msg buffer 1969 * @msglen: msg length 1970 * 1971 * called from the VF for the iwarp msgs 1972 **/ 1973 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1974 { 1975 struct i40e_pf *pf = vf->pf; 1976 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 1977 i40e_status aq_ret = 0; 1978 1979 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1980 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 1981 aq_ret = I40E_ERR_PARAM; 1982 goto error_param; 1983 } 1984 1985 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 1986 msg, msglen); 1987 1988 error_param: 1989 /* send the response to the VF */ 1990 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP, 1991 aq_ret); 1992 } 1993 1994 /** 1995 * i40e_vc_iwarp_qvmap_msg 1996 * @vf: pointer to the VF info 1997 * @msg: pointer to the msg buffer 1998 * @msglen: msg length 1999 * @config: config qvmap or release it 2000 * 2001 * called from the VF for the iwarp msgs 2002 **/ 2003 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen, 2004 bool config) 2005 { 2006 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = 2007 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2008 i40e_status aq_ret = 0; 2009 2010 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2011 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 2012 aq_ret = I40E_ERR_PARAM; 2013 goto error_param; 2014 } 2015 2016 if (config) { 2017 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2018 aq_ret = I40E_ERR_PARAM; 2019 } else { 2020 i40e_release_iwarp_qvlist(vf); 2021 } 2022 2023 error_param: 2024 /* send the response to the VF */ 2025 return i40e_vc_send_resp_to_vf(vf, 2026 config ? I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP : 2027 I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP, 2028 aq_ret); 2029 } 2030 2031 /** 2032 * i40e_vc_validate_vf_msg 2033 * @vf: pointer to the VF info 2034 * @msg: pointer to the msg buffer 2035 * @msglen: msg length 2036 * @msghndl: msg handle 2037 * 2038 * validate msg 2039 **/ 2040 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, 2041 u32 v_retval, u8 *msg, u16 msglen) 2042 { 2043 bool err_msg_format = false; 2044 int valid_len; 2045 2046 /* Check if VF is disabled. */ 2047 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states)) 2048 return I40E_ERR_PARAM; 2049 2050 /* Validate message length. */ 2051 switch (v_opcode) { 2052 case I40E_VIRTCHNL_OP_VERSION: 2053 valid_len = sizeof(struct i40e_virtchnl_version_info); 2054 break; 2055 case I40E_VIRTCHNL_OP_RESET_VF: 2056 valid_len = 0; 2057 break; 2058 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2059 if (VF_IS_V11(vf)) 2060 valid_len = sizeof(u32); 2061 else 2062 valid_len = 0; 2063 break; 2064 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: 2065 valid_len = sizeof(struct i40e_virtchnl_txq_info); 2066 break; 2067 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: 2068 valid_len = sizeof(struct i40e_virtchnl_rxq_info); 2069 break; 2070 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2071 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); 2072 if (msglen >= valid_len) { 2073 struct i40e_virtchnl_vsi_queue_config_info *vqc = 2074 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 2075 valid_len += (vqc->num_queue_pairs * 2076 sizeof(struct 2077 i40e_virtchnl_queue_pair_info)); 2078 if (vqc->num_queue_pairs == 0) 2079 err_msg_format = true; 2080 } 2081 break; 2082 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2083 valid_len = sizeof(struct i40e_virtchnl_irq_map_info); 2084 if (msglen >= valid_len) { 2085 struct i40e_virtchnl_irq_map_info *vimi = 2086 (struct i40e_virtchnl_irq_map_info *)msg; 2087 valid_len += (vimi->num_vectors * 2088 sizeof(struct i40e_virtchnl_vector_map)); 2089 if (vimi->num_vectors == 0) 2090 err_msg_format = true; 2091 } 2092 break; 2093 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2094 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2095 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2096 break; 2097 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2098 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2099 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); 2100 if (msglen >= valid_len) { 2101 struct i40e_virtchnl_ether_addr_list *veal = 2102 (struct i40e_virtchnl_ether_addr_list *)msg; 2103 valid_len += veal->num_elements * 2104 sizeof(struct i40e_virtchnl_ether_addr); 2105 if (veal->num_elements == 0) 2106 err_msg_format = true; 2107 } 2108 break; 2109 case I40E_VIRTCHNL_OP_ADD_VLAN: 2110 case I40E_VIRTCHNL_OP_DEL_VLAN: 2111 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); 2112 if (msglen >= valid_len) { 2113 struct i40e_virtchnl_vlan_filter_list *vfl = 2114 (struct i40e_virtchnl_vlan_filter_list *)msg; 2115 valid_len += vfl->num_elements * sizeof(u16); 2116 if (vfl->num_elements == 0) 2117 err_msg_format = true; 2118 } 2119 break; 2120 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2121 valid_len = sizeof(struct i40e_virtchnl_promisc_info); 2122 break; 2123 case I40E_VIRTCHNL_OP_GET_STATS: 2124 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2125 break; 2126 case I40E_VIRTCHNL_OP_IWARP: 2127 /* These messages are opaque to us and will be validated in 2128 * the RDMA client code. We just need to check for nonzero 2129 * length. The firmware will enforce max length restrictions. 2130 */ 2131 if (msglen) 2132 valid_len = msglen; 2133 else 2134 err_msg_format = true; 2135 break; 2136 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2137 valid_len = 0; 2138 break; 2139 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2140 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info); 2141 if (msglen >= valid_len) { 2142 struct i40e_virtchnl_iwarp_qvlist_info *qv = 2143 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2144 if (qv->num_vectors == 0) { 2145 err_msg_format = true; 2146 break; 2147 } 2148 valid_len += ((qv->num_vectors - 1) * 2149 sizeof(struct i40e_virtchnl_iwarp_qv_info)); 2150 } 2151 break; 2152 /* These are always errors coming from the VF. */ 2153 case I40E_VIRTCHNL_OP_EVENT: 2154 case I40E_VIRTCHNL_OP_UNKNOWN: 2155 default: 2156 return -EPERM; 2157 } 2158 /* few more checks */ 2159 if ((valid_len != msglen) || (err_msg_format)) { 2160 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 2161 return -EINVAL; 2162 } else { 2163 return 0; 2164 } 2165 } 2166 2167 /** 2168 * i40e_vc_process_vf_msg 2169 * @pf: pointer to the PF structure 2170 * @vf_id: source VF id 2171 * @msg: pointer to the msg buffer 2172 * @msglen: msg length 2173 * @msghndl: msg handle 2174 * 2175 * called from the common aeq/arq handler to 2176 * process request from VF 2177 **/ 2178 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode, 2179 u32 v_retval, u8 *msg, u16 msglen) 2180 { 2181 struct i40e_hw *hw = &pf->hw; 2182 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id; 2183 struct i40e_vf *vf; 2184 int ret; 2185 2186 pf->vf_aq_requests++; 2187 if (local_vf_id >= pf->num_alloc_vfs) 2188 return -EINVAL; 2189 vf = &(pf->vf[local_vf_id]); 2190 /* perform basic checks on the msg */ 2191 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); 2192 2193 if (ret) { 2194 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 2195 local_vf_id, v_opcode, msglen); 2196 return ret; 2197 } 2198 2199 switch (v_opcode) { 2200 case I40E_VIRTCHNL_OP_VERSION: 2201 ret = i40e_vc_get_version_msg(vf, msg); 2202 break; 2203 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2204 ret = i40e_vc_get_vf_resources_msg(vf, msg); 2205 break; 2206 case I40E_VIRTCHNL_OP_RESET_VF: 2207 i40e_vc_reset_vf_msg(vf); 2208 ret = 0; 2209 break; 2210 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2211 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); 2212 break; 2213 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2214 ret = i40e_vc_config_queues_msg(vf, msg, msglen); 2215 break; 2216 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2217 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); 2218 break; 2219 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2220 ret = i40e_vc_enable_queues_msg(vf, msg, msglen); 2221 i40e_vc_notify_vf_link_state(vf); 2222 break; 2223 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2224 ret = i40e_vc_disable_queues_msg(vf, msg, msglen); 2225 break; 2226 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2227 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); 2228 break; 2229 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2230 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); 2231 break; 2232 case I40E_VIRTCHNL_OP_ADD_VLAN: 2233 ret = i40e_vc_add_vlan_msg(vf, msg, msglen); 2234 break; 2235 case I40E_VIRTCHNL_OP_DEL_VLAN: 2236 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); 2237 break; 2238 case I40E_VIRTCHNL_OP_GET_STATS: 2239 ret = i40e_vc_get_stats_msg(vf, msg, msglen); 2240 break; 2241 case I40E_VIRTCHNL_OP_IWARP: 2242 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 2243 break; 2244 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2245 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true); 2246 break; 2247 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2248 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false); 2249 break; 2250 case I40E_VIRTCHNL_OP_UNKNOWN: 2251 default: 2252 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 2253 v_opcode, local_vf_id); 2254 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 2255 I40E_ERR_NOT_IMPLEMENTED); 2256 break; 2257 } 2258 2259 return ret; 2260 } 2261 2262 /** 2263 * i40e_vc_process_vflr_event 2264 * @pf: pointer to the PF structure 2265 * 2266 * called from the vlfr irq handler to 2267 * free up VF resources and state variables 2268 **/ 2269 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 2270 { 2271 u32 reg, reg_idx, bit_idx, vf_id; 2272 struct i40e_hw *hw = &pf->hw; 2273 struct i40e_vf *vf; 2274 2275 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) 2276 return 0; 2277 2278 /* Re-enable the VFLR interrupt cause here, before looking for which 2279 * VF got reset. Otherwise, if another VF gets a reset while the 2280 * first one is being processed, that interrupt will be lost, and 2281 * that VF will be stuck in reset forever. 2282 */ 2283 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 2284 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 2285 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 2286 i40e_flush(hw); 2287 2288 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state); 2289 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 2290 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 2291 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 2292 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 2293 vf = &pf->vf[vf_id]; 2294 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 2295 if (reg & BIT(bit_idx)) { 2296 /* clear the bit in GLGEN_VFLRSTAT */ 2297 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 2298 2299 if (!test_bit(__I40E_DOWN, &pf->state)) 2300 i40e_reset_vf(vf, true); 2301 } 2302 } 2303 2304 return 0; 2305 } 2306 2307 /** 2308 * i40e_ndo_set_vf_mac 2309 * @netdev: network interface device structure 2310 * @vf_id: VF identifier 2311 * @mac: mac address 2312 * 2313 * program VF mac address 2314 **/ 2315 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 2316 { 2317 struct i40e_netdev_priv *np = netdev_priv(netdev); 2318 struct i40e_vsi *vsi = np->vsi; 2319 struct i40e_pf *pf = vsi->back; 2320 struct i40e_mac_filter *f; 2321 struct i40e_vf *vf; 2322 int ret = 0; 2323 2324 /* validate the request */ 2325 if (vf_id >= pf->num_alloc_vfs) { 2326 dev_err(&pf->pdev->dev, 2327 "Invalid VF Identifier %d\n", vf_id); 2328 ret = -EINVAL; 2329 goto error_param; 2330 } 2331 2332 vf = &(pf->vf[vf_id]); 2333 vsi = pf->vsi[vf->lan_vsi_idx]; 2334 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2335 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2336 vf_id); 2337 ret = -EAGAIN; 2338 goto error_param; 2339 } 2340 2341 if (is_multicast_ether_addr(mac)) { 2342 dev_err(&pf->pdev->dev, 2343 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 2344 ret = -EINVAL; 2345 goto error_param; 2346 } 2347 2348 /* Lock once because below invoked function add/del_filter requires 2349 * mac_filter_list_lock to be held 2350 */ 2351 spin_lock_bh(&vsi->mac_filter_list_lock); 2352 2353 /* delete the temporary mac address */ 2354 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 2355 i40e_del_filter(vsi, vf->default_lan_addr.addr, 2356 vf->port_vlan_id ? vf->port_vlan_id : -1, 2357 true, false); 2358 2359 /* Delete all the filters for this VSI - we're going to kill it 2360 * anyway. 2361 */ 2362 list_for_each_entry(f, &vsi->mac_filter_list, list) 2363 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false); 2364 2365 spin_unlock_bh(&vsi->mac_filter_list_lock); 2366 2367 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); 2368 /* program mac filter */ 2369 if (i40e_sync_vsi_filters(vsi)) { 2370 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 2371 ret = -EIO; 2372 goto error_param; 2373 } 2374 ether_addr_copy(vf->default_lan_addr.addr, mac); 2375 vf->pf_set_mac = true; 2376 /* Force the VF driver stop so it has to reload with new MAC address */ 2377 i40e_vc_disable_vf(pf, vf); 2378 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); 2379 2380 error_param: 2381 return ret; 2382 } 2383 2384 /** 2385 * i40e_ndo_set_vf_port_vlan 2386 * @netdev: network interface device structure 2387 * @vf_id: VF identifier 2388 * @vlan_id: mac address 2389 * @qos: priority setting 2390 * 2391 * program VF vlan id and/or qos 2392 **/ 2393 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, 2394 int vf_id, u16 vlan_id, u8 qos) 2395 { 2396 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 2397 struct i40e_netdev_priv *np = netdev_priv(netdev); 2398 struct i40e_pf *pf = np->vsi->back; 2399 bool is_vsi_in_vlan = false; 2400 struct i40e_vsi *vsi; 2401 struct i40e_vf *vf; 2402 int ret = 0; 2403 2404 /* validate the request */ 2405 if (vf_id >= pf->num_alloc_vfs) { 2406 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2407 ret = -EINVAL; 2408 goto error_pvid; 2409 } 2410 2411 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 2412 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 2413 ret = -EINVAL; 2414 goto error_pvid; 2415 } 2416 2417 vf = &(pf->vf[vf_id]); 2418 vsi = pf->vsi[vf->lan_vsi_idx]; 2419 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2420 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2421 vf_id); 2422 ret = -EAGAIN; 2423 goto error_pvid; 2424 } 2425 2426 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 2427 /* duplicate request, so just return success */ 2428 goto error_pvid; 2429 2430 spin_lock_bh(&vsi->mac_filter_list_lock); 2431 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi); 2432 spin_unlock_bh(&vsi->mac_filter_list_lock); 2433 2434 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) { 2435 dev_err(&pf->pdev->dev, 2436 "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", 2437 vf_id); 2438 /* Administrator Error - knock the VF offline until he does 2439 * the right thing by reconfiguring his network correctly 2440 * and then reloading the VF driver. 2441 */ 2442 i40e_vc_disable_vf(pf, vf); 2443 /* During reset the VF got a new VSI, so refresh the pointer. */ 2444 vsi = pf->vsi[vf->lan_vsi_idx]; 2445 } 2446 2447 /* Check for condition where there was already a port VLAN ID 2448 * filter set and now it is being deleted by setting it to zero. 2449 * Additionally check for the condition where there was a port 2450 * VLAN but now there is a new and different port VLAN being set. 2451 * Before deleting all the old VLAN filters we must add new ones 2452 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 2453 * MAC addresses deleted. 2454 */ 2455 if ((!(vlan_id || qos) || 2456 vlanprio != le16_to_cpu(vsi->info.pvid)) && 2457 vsi->info.pvid) 2458 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY); 2459 2460 if (vsi->info.pvid) { 2461 /* kill old VLAN */ 2462 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & 2463 VLAN_VID_MASK)); 2464 if (ret) { 2465 dev_info(&vsi->back->pdev->dev, 2466 "remove VLAN failed, ret=%d, aq_err=%d\n", 2467 ret, pf->hw.aq.asq_last_status); 2468 } 2469 } 2470 if (vlan_id || qos) 2471 ret = i40e_vsi_add_pvid(vsi, vlanprio); 2472 else 2473 i40e_vsi_remove_pvid(vsi); 2474 2475 if (vlan_id) { 2476 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 2477 vlan_id, qos, vf_id); 2478 2479 /* add new VLAN filter */ 2480 ret = i40e_vsi_add_vlan(vsi, vlan_id); 2481 if (ret) { 2482 dev_info(&vsi->back->pdev->dev, 2483 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 2484 vsi->back->hw.aq.asq_last_status); 2485 goto error_pvid; 2486 } 2487 /* Kill non-vlan MAC filters - ignore error return since 2488 * there might not be any non-vlan MAC filters. 2489 */ 2490 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY); 2491 } 2492 2493 if (ret) { 2494 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 2495 goto error_pvid; 2496 } 2497 /* The Port VLAN needs to be saved across resets the same as the 2498 * default LAN MAC address. 2499 */ 2500 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 2501 ret = 0; 2502 2503 error_pvid: 2504 return ret; 2505 } 2506 2507 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ 2508 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ 2509 /** 2510 * i40e_ndo_set_vf_bw 2511 * @netdev: network interface device structure 2512 * @vf_id: VF identifier 2513 * @tx_rate: Tx rate 2514 * 2515 * configure VF Tx rate 2516 **/ 2517 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 2518 int max_tx_rate) 2519 { 2520 struct i40e_netdev_priv *np = netdev_priv(netdev); 2521 struct i40e_pf *pf = np->vsi->back; 2522 struct i40e_vsi *vsi; 2523 struct i40e_vf *vf; 2524 int speed = 0; 2525 int ret = 0; 2526 2527 /* validate the request */ 2528 if (vf_id >= pf->num_alloc_vfs) { 2529 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); 2530 ret = -EINVAL; 2531 goto error; 2532 } 2533 2534 if (min_tx_rate) { 2535 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 2536 min_tx_rate, vf_id); 2537 return -EINVAL; 2538 } 2539 2540 vf = &(pf->vf[vf_id]); 2541 vsi = pf->vsi[vf->lan_vsi_idx]; 2542 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2543 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2544 vf_id); 2545 ret = -EAGAIN; 2546 goto error; 2547 } 2548 2549 switch (pf->hw.phy.link_info.link_speed) { 2550 case I40E_LINK_SPEED_40GB: 2551 speed = 40000; 2552 break; 2553 case I40E_LINK_SPEED_20GB: 2554 speed = 20000; 2555 break; 2556 case I40E_LINK_SPEED_10GB: 2557 speed = 10000; 2558 break; 2559 case I40E_LINK_SPEED_1GB: 2560 speed = 1000; 2561 break; 2562 default: 2563 break; 2564 } 2565 2566 if (max_tx_rate > speed) { 2567 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.", 2568 max_tx_rate, vf->vf_id); 2569 ret = -EINVAL; 2570 goto error; 2571 } 2572 2573 if ((max_tx_rate < 50) && (max_tx_rate > 0)) { 2574 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); 2575 max_tx_rate = 50; 2576 } 2577 2578 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ 2579 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 2580 max_tx_rate / I40E_BW_CREDIT_DIVISOR, 2581 I40E_MAX_BW_INACTIVE_ACCUM, NULL); 2582 if (ret) { 2583 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", 2584 ret); 2585 ret = -EIO; 2586 goto error; 2587 } 2588 vf->tx_rate = max_tx_rate; 2589 error: 2590 return ret; 2591 } 2592 2593 /** 2594 * i40e_ndo_get_vf_config 2595 * @netdev: network interface device structure 2596 * @vf_id: VF identifier 2597 * @ivi: VF configuration structure 2598 * 2599 * return VF configuration 2600 **/ 2601 int i40e_ndo_get_vf_config(struct net_device *netdev, 2602 int vf_id, struct ifla_vf_info *ivi) 2603 { 2604 struct i40e_netdev_priv *np = netdev_priv(netdev); 2605 struct i40e_vsi *vsi = np->vsi; 2606 struct i40e_pf *pf = vsi->back; 2607 struct i40e_vf *vf; 2608 int ret = 0; 2609 2610 /* validate the request */ 2611 if (vf_id >= pf->num_alloc_vfs) { 2612 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2613 ret = -EINVAL; 2614 goto error_param; 2615 } 2616 2617 vf = &(pf->vf[vf_id]); 2618 /* first vsi is always the LAN vsi */ 2619 vsi = pf->vsi[vf->lan_vsi_idx]; 2620 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2621 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2622 vf_id); 2623 ret = -EAGAIN; 2624 goto error_param; 2625 } 2626 2627 ivi->vf = vf_id; 2628 2629 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 2630 2631 ivi->max_tx_rate = vf->tx_rate; 2632 ivi->min_tx_rate = 0; 2633 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 2634 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 2635 I40E_VLAN_PRIORITY_SHIFT; 2636 if (vf->link_forced == false) 2637 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 2638 else if (vf->link_up == true) 2639 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 2640 else 2641 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 2642 ivi->spoofchk = vf->spoofchk; 2643 ret = 0; 2644 2645 error_param: 2646 return ret; 2647 } 2648 2649 /** 2650 * i40e_ndo_set_vf_link_state 2651 * @netdev: network interface device structure 2652 * @vf_id: VF identifier 2653 * @link: required link state 2654 * 2655 * Set the link state of a specified VF, regardless of physical link state 2656 **/ 2657 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 2658 { 2659 struct i40e_netdev_priv *np = netdev_priv(netdev); 2660 struct i40e_pf *pf = np->vsi->back; 2661 struct i40e_virtchnl_pf_event pfe; 2662 struct i40e_hw *hw = &pf->hw; 2663 struct i40e_vf *vf; 2664 int abs_vf_id; 2665 int ret = 0; 2666 2667 /* validate the request */ 2668 if (vf_id >= pf->num_alloc_vfs) { 2669 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2670 ret = -EINVAL; 2671 goto error_out; 2672 } 2673 2674 vf = &pf->vf[vf_id]; 2675 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 2676 2677 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; 2678 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; 2679 2680 switch (link) { 2681 case IFLA_VF_LINK_STATE_AUTO: 2682 vf->link_forced = false; 2683 pfe.event_data.link_event.link_status = 2684 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 2685 pfe.event_data.link_event.link_speed = 2686 pf->hw.phy.link_info.link_speed; 2687 break; 2688 case IFLA_VF_LINK_STATE_ENABLE: 2689 vf->link_forced = true; 2690 vf->link_up = true; 2691 pfe.event_data.link_event.link_status = true; 2692 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; 2693 break; 2694 case IFLA_VF_LINK_STATE_DISABLE: 2695 vf->link_forced = true; 2696 vf->link_up = false; 2697 pfe.event_data.link_event.link_status = false; 2698 pfe.event_data.link_event.link_speed = 0; 2699 break; 2700 default: 2701 ret = -EINVAL; 2702 goto error_out; 2703 } 2704 /* Notify the VF of its new link state */ 2705 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 2706 0, (u8 *)&pfe, sizeof(pfe), NULL); 2707 2708 error_out: 2709 return ret; 2710 } 2711 2712 /** 2713 * i40e_ndo_set_vf_spoofchk 2714 * @netdev: network interface device structure 2715 * @vf_id: VF identifier 2716 * @enable: flag to enable or disable feature 2717 * 2718 * Enable or disable VF spoof checking 2719 **/ 2720 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 2721 { 2722 struct i40e_netdev_priv *np = netdev_priv(netdev); 2723 struct i40e_vsi *vsi = np->vsi; 2724 struct i40e_pf *pf = vsi->back; 2725 struct i40e_vsi_context ctxt; 2726 struct i40e_hw *hw = &pf->hw; 2727 struct i40e_vf *vf; 2728 int ret = 0; 2729 2730 /* validate the request */ 2731 if (vf_id >= pf->num_alloc_vfs) { 2732 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2733 ret = -EINVAL; 2734 goto out; 2735 } 2736 2737 vf = &(pf->vf[vf_id]); 2738 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2739 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2740 vf_id); 2741 ret = -EAGAIN; 2742 goto out; 2743 } 2744 2745 if (enable == vf->spoofchk) 2746 goto out; 2747 2748 vf->spoofchk = enable; 2749 memset(&ctxt, 0, sizeof(ctxt)); 2750 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 2751 ctxt.pf_num = pf->hw.pf_id; 2752 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 2753 if (enable) 2754 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 2755 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 2756 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 2757 if (ret) { 2758 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 2759 ret); 2760 ret = -EIO; 2761 } 2762 out: 2763 return ret; 2764 } 2765