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_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_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_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 + (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); 677 678 vf->lan_vsi_idx = vsi->idx; 679 vf->lan_vsi_id = vsi->id; 680 /* If the port VLAN has been configured and then the 681 * VF driver was removed then the VSI port VLAN 682 * configuration was destroyed. Check if there is 683 * a port VLAN and restore the VSI configuration if 684 * needed. 685 */ 686 if (vf->port_vlan_id) 687 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 688 689 spin_lock_bh(&vsi->mac_filter_hash_lock); 690 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 691 f = i40e_add_filter(vsi, vf->default_lan_addr.addr, 692 vf->port_vlan_id ? 693 vf->port_vlan_id : -1); 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 spin_unlock_bh(&vsi->mac_filter_hash_lock); 700 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), 701 (u32)hena); 702 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), 703 (u32)(hena >> 32)); 704 } 705 706 /* program mac filter */ 707 ret = i40e_sync_vsi_filters(vsi); 708 if (ret) 709 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 710 711 /* Set VF bandwidth if specified */ 712 if (vf->tx_rate) { 713 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 714 vf->tx_rate / 50, 0, NULL); 715 if (ret) 716 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 717 vf->vf_id, ret); 718 } 719 720 error_alloc_vsi_res: 721 return ret; 722 } 723 724 /** 725 * i40e_enable_vf_mappings 726 * @vf: pointer to the VF info 727 * 728 * enable VF mappings 729 **/ 730 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 731 { 732 struct i40e_pf *pf = vf->pf; 733 struct i40e_hw *hw = &pf->hw; 734 u32 reg, total_queue_pairs = 0; 735 int j; 736 737 /* Tell the hardware we're using noncontiguous mapping. HW requires 738 * that VF queues be mapped using this method, even when they are 739 * contiguous in real life 740 */ 741 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 742 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 743 744 /* enable VF vplan_qtable mappings */ 745 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 746 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 747 748 /* map PF queues to VF queues */ 749 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) { 750 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j); 751 752 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 753 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); 754 total_queue_pairs++; 755 } 756 757 /* map PF queues to VSI */ 758 for (j = 0; j < 7; j++) { 759 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) { 760 reg = 0x07FF07FF; /* unused */ 761 } else { 762 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 763 j * 2); 764 reg = qid; 765 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 766 (j * 2) + 1); 767 reg |= qid << 16; 768 } 769 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), 770 reg); 771 } 772 773 i40e_flush(hw); 774 } 775 776 /** 777 * i40e_disable_vf_mappings 778 * @vf: pointer to the VF info 779 * 780 * disable VF mappings 781 **/ 782 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 783 { 784 struct i40e_pf *pf = vf->pf; 785 struct i40e_hw *hw = &pf->hw; 786 int i; 787 788 /* disable qp mappings */ 789 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 790 for (i = 0; i < I40E_MAX_VSI_QP; i++) 791 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 792 I40E_QUEUE_END_OF_LIST); 793 i40e_flush(hw); 794 } 795 796 /** 797 * i40e_free_vf_res 798 * @vf: pointer to the VF info 799 * 800 * free VF resources 801 **/ 802 static void i40e_free_vf_res(struct i40e_vf *vf) 803 { 804 struct i40e_pf *pf = vf->pf; 805 struct i40e_hw *hw = &pf->hw; 806 u32 reg_idx, reg; 807 int i, msix_vf; 808 809 /* free vsi & disconnect it from the parent uplink */ 810 if (vf->lan_vsi_idx) { 811 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 812 vf->lan_vsi_idx = 0; 813 vf->lan_vsi_id = 0; 814 vf->num_mac = 0; 815 } 816 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 817 818 /* disable interrupts so the VF starts in a known state */ 819 for (i = 0; i < msix_vf; i++) { 820 /* format is same for both registers */ 821 if (0 == i) 822 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 823 else 824 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 825 (vf->vf_id)) 826 + (i - 1)); 827 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 828 i40e_flush(hw); 829 } 830 831 /* clear the irq settings */ 832 for (i = 0; i < msix_vf; i++) { 833 /* format is same for both registers */ 834 if (0 == i) 835 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 836 else 837 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 838 (vf->vf_id)) 839 + (i - 1)); 840 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 841 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 842 wr32(hw, reg_idx, reg); 843 i40e_flush(hw); 844 } 845 /* reset some of the state varibles keeping 846 * track of the resources 847 */ 848 vf->num_queue_pairs = 0; 849 vf->vf_states = 0; 850 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states); 851 } 852 853 /** 854 * i40e_alloc_vf_res 855 * @vf: pointer to the VF info 856 * 857 * allocate VF resources 858 **/ 859 static int i40e_alloc_vf_res(struct i40e_vf *vf) 860 { 861 struct i40e_pf *pf = vf->pf; 862 int total_queue_pairs = 0; 863 int ret; 864 865 /* allocate hw vsi context & associated resources */ 866 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); 867 if (ret) 868 goto error_alloc; 869 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 870 871 if (vf->trusted) 872 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 873 else 874 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 875 876 /* store the total qps number for the runtime 877 * VF req validation 878 */ 879 vf->num_queue_pairs = total_queue_pairs; 880 881 /* VF is now completely initialized */ 882 set_bit(I40E_VF_STAT_INIT, &vf->vf_states); 883 884 error_alloc: 885 if (ret) 886 i40e_free_vf_res(vf); 887 888 return ret; 889 } 890 891 #define VF_DEVICE_STATUS 0xAA 892 #define VF_TRANS_PENDING_MASK 0x20 893 /** 894 * i40e_quiesce_vf_pci 895 * @vf: pointer to the VF structure 896 * 897 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 898 * if the transactions never clear. 899 **/ 900 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 901 { 902 struct i40e_pf *pf = vf->pf; 903 struct i40e_hw *hw = &pf->hw; 904 int vf_abs_id, i; 905 u32 reg; 906 907 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 908 909 wr32(hw, I40E_PF_PCI_CIAA, 910 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 911 for (i = 0; i < 100; i++) { 912 reg = rd32(hw, I40E_PF_PCI_CIAD); 913 if ((reg & VF_TRANS_PENDING_MASK) == 0) 914 return 0; 915 udelay(1); 916 } 917 return -EIO; 918 } 919 920 /** 921 * i40e_reset_vf 922 * @vf: pointer to the VF structure 923 * @flr: VFLR was issued or not 924 * 925 * reset the VF 926 **/ 927 void i40e_reset_vf(struct i40e_vf *vf, bool flr) 928 { 929 struct i40e_pf *pf = vf->pf; 930 struct i40e_hw *hw = &pf->hw; 931 u32 reg, reg_idx, bit_idx; 932 bool rsd = false; 933 int i; 934 935 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 936 return; 937 938 /* warn the VF */ 939 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 940 941 /* In the case of a VFLR, the HW has already reset the VF and we 942 * just need to clean up, so don't hit the VFRTRIG register. 943 */ 944 if (!flr) { 945 /* reset VF using VPGEN_VFRTRIG reg */ 946 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 947 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 948 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 949 i40e_flush(hw); 950 } 951 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 952 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 953 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 954 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 955 i40e_flush(hw); 956 957 if (i40e_quiesce_vf_pci(vf)) 958 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 959 vf->vf_id); 960 961 /* poll VPGEN_VFRSTAT reg to make sure 962 * that reset is complete 963 */ 964 for (i = 0; i < 10; i++) { 965 /* VF reset requires driver to first reset the VF and then 966 * poll the status register to make sure that the reset 967 * completed successfully. Due to internal HW FIFO flushes, 968 * we must wait 10ms before the register will be valid. 969 */ 970 usleep_range(10000, 20000); 971 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 972 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 973 rsd = true; 974 break; 975 } 976 } 977 978 if (flr) 979 usleep_range(10000, 20000); 980 981 if (!rsd) 982 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 983 vf->vf_id); 984 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED); 985 /* clear the reset bit in the VPGEN_VFRTRIG reg */ 986 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 987 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 988 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 989 990 /* On initial reset, we won't have any queues */ 991 if (vf->lan_vsi_idx == 0) 992 goto complete_reset; 993 994 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 995 complete_reset: 996 /* reallocate VF resources to reset the VSI state */ 997 i40e_free_vf_res(vf); 998 if (!i40e_alloc_vf_res(vf)) { 999 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1000 i40e_enable_vf_mappings(vf); 1001 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 1002 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 1003 /* Do not notify the client during VF init */ 1004 if (vf->pf->num_alloc_vfs) 1005 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1006 vf->num_vlan = 0; 1007 } 1008 /* tell the VF the reset is done */ 1009 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); 1010 1011 i40e_flush(hw); 1012 clear_bit(__I40E_VF_DISABLE, &pf->state); 1013 } 1014 1015 /** 1016 * i40e_free_vfs 1017 * @pf: pointer to the PF structure 1018 * 1019 * free VF resources 1020 **/ 1021 void i40e_free_vfs(struct i40e_pf *pf) 1022 { 1023 struct i40e_hw *hw = &pf->hw; 1024 u32 reg_idx, bit_idx; 1025 int i, tmp, vf_id; 1026 1027 if (!pf->vf) 1028 return; 1029 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 1030 usleep_range(1000, 2000); 1031 1032 i40e_notify_client_of_vf_enable(pf, 0); 1033 for (i = 0; i < pf->num_alloc_vfs; i++) 1034 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1035 i40e_vsi_stop_rings(pf->vsi[pf->vf[i].lan_vsi_idx]); 1036 1037 /* Disable IOV before freeing resources. This lets any VF drivers 1038 * running in the host get themselves cleaned up before we yank 1039 * the carpet out from underneath their feet. 1040 */ 1041 if (!pci_vfs_assigned(pf->pdev)) 1042 pci_disable_sriov(pf->pdev); 1043 else 1044 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1045 1046 msleep(20); /* let any messages in transit get finished up */ 1047 1048 /* free up VF resources */ 1049 tmp = pf->num_alloc_vfs; 1050 pf->num_alloc_vfs = 0; 1051 for (i = 0; i < tmp; i++) { 1052 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1053 i40e_free_vf_res(&pf->vf[i]); 1054 /* disable qp mappings */ 1055 i40e_disable_vf_mappings(&pf->vf[i]); 1056 } 1057 1058 kfree(pf->vf); 1059 pf->vf = NULL; 1060 1061 /* This check is for when the driver is unloaded while VFs are 1062 * assigned. Setting the number of VFs to 0 through sysfs is caught 1063 * before this function ever gets called. 1064 */ 1065 if (!pci_vfs_assigned(pf->pdev)) { 1066 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1067 * work correctly when SR-IOV gets re-enabled. 1068 */ 1069 for (vf_id = 0; vf_id < tmp; vf_id++) { 1070 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1071 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1072 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1073 } 1074 } 1075 clear_bit(__I40E_VF_DISABLE, &pf->state); 1076 } 1077 1078 #ifdef CONFIG_PCI_IOV 1079 /** 1080 * i40e_alloc_vfs 1081 * @pf: pointer to the PF structure 1082 * @num_alloc_vfs: number of VFs to allocate 1083 * 1084 * allocate VF resources 1085 **/ 1086 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1087 { 1088 struct i40e_vf *vfs; 1089 int i, ret = 0; 1090 1091 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1092 i40e_irq_dynamic_disable_icr0(pf); 1093 1094 /* Check to see if we're just allocating resources for extant VFs */ 1095 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1096 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1097 if (ret) { 1098 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1099 pf->num_alloc_vfs = 0; 1100 goto err_iov; 1101 } 1102 } 1103 /* allocate memory */ 1104 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1105 if (!vfs) { 1106 ret = -ENOMEM; 1107 goto err_alloc; 1108 } 1109 pf->vf = vfs; 1110 1111 /* apply default profile */ 1112 for (i = 0; i < num_alloc_vfs; i++) { 1113 vfs[i].pf = pf; 1114 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1115 vfs[i].vf_id = i; 1116 1117 /* assign default capabilities */ 1118 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1119 vfs[i].spoofchk = true; 1120 /* VF resources get allocated during reset */ 1121 i40e_reset_vf(&vfs[i], false); 1122 1123 } 1124 pf->num_alloc_vfs = num_alloc_vfs; 1125 1126 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1127 1128 err_alloc: 1129 if (ret) 1130 i40e_free_vfs(pf); 1131 err_iov: 1132 /* Re-enable interrupt 0. */ 1133 i40e_irq_dynamic_enable_icr0(pf, false); 1134 return ret; 1135 } 1136 1137 #endif 1138 /** 1139 * i40e_pci_sriov_enable 1140 * @pdev: pointer to a pci_dev structure 1141 * @num_vfs: number of VFs to allocate 1142 * 1143 * Enable or change the number of VFs 1144 **/ 1145 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1146 { 1147 #ifdef CONFIG_PCI_IOV 1148 struct i40e_pf *pf = pci_get_drvdata(pdev); 1149 int pre_existing_vfs = pci_num_vf(pdev); 1150 int err = 0; 1151 1152 if (test_bit(__I40E_TESTING, &pf->state)) { 1153 dev_warn(&pdev->dev, 1154 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1155 err = -EPERM; 1156 goto err_out; 1157 } 1158 1159 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1160 i40e_free_vfs(pf); 1161 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1162 goto out; 1163 1164 if (num_vfs > pf->num_req_vfs) { 1165 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1166 num_vfs, pf->num_req_vfs); 1167 err = -EPERM; 1168 goto err_out; 1169 } 1170 1171 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1172 err = i40e_alloc_vfs(pf, num_vfs); 1173 if (err) { 1174 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1175 goto err_out; 1176 } 1177 1178 out: 1179 return num_vfs; 1180 1181 err_out: 1182 return err; 1183 #endif 1184 return 0; 1185 } 1186 1187 /** 1188 * i40e_pci_sriov_configure 1189 * @pdev: pointer to a pci_dev structure 1190 * @num_vfs: number of VFs to allocate 1191 * 1192 * Enable or change the number of VFs. Called when the user updates the number 1193 * of VFs in sysfs. 1194 **/ 1195 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1196 { 1197 struct i40e_pf *pf = pci_get_drvdata(pdev); 1198 1199 if (num_vfs) { 1200 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1201 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1202 i40e_do_reset_safe(pf, 1203 BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1204 } 1205 return i40e_pci_sriov_enable(pdev, num_vfs); 1206 } 1207 1208 if (!pci_vfs_assigned(pf->pdev)) { 1209 i40e_free_vfs(pf); 1210 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1211 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1212 } else { 1213 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1214 return -EINVAL; 1215 } 1216 return 0; 1217 } 1218 1219 /***********************virtual channel routines******************/ 1220 1221 /** 1222 * i40e_vc_send_msg_to_vf 1223 * @vf: pointer to the VF info 1224 * @v_opcode: virtual channel opcode 1225 * @v_retval: virtual channel return value 1226 * @msg: pointer to the msg buffer 1227 * @msglen: msg length 1228 * 1229 * send msg to VF 1230 **/ 1231 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1232 u32 v_retval, u8 *msg, u16 msglen) 1233 { 1234 struct i40e_pf *pf; 1235 struct i40e_hw *hw; 1236 int abs_vf_id; 1237 i40e_status aq_ret; 1238 1239 /* validate the request */ 1240 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1241 return -EINVAL; 1242 1243 pf = vf->pf; 1244 hw = &pf->hw; 1245 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1246 1247 /* single place to detect unsuccessful return values */ 1248 if (v_retval) { 1249 vf->num_invalid_msgs++; 1250 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1251 vf->vf_id, v_opcode, v_retval); 1252 if (vf->num_invalid_msgs > 1253 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1254 dev_err(&pf->pdev->dev, 1255 "Number of invalid messages exceeded for VF %d\n", 1256 vf->vf_id); 1257 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1258 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 1259 } 1260 } else { 1261 vf->num_valid_msgs++; 1262 /* reset the invalid counter, if a valid message is received. */ 1263 vf->num_invalid_msgs = 0; 1264 } 1265 1266 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1267 msg, msglen, NULL); 1268 if (aq_ret) { 1269 dev_info(&pf->pdev->dev, 1270 "Unable to send the message to VF %d aq_err %d\n", 1271 vf->vf_id, pf->hw.aq.asq_last_status); 1272 return -EIO; 1273 } 1274 1275 return 0; 1276 } 1277 1278 /** 1279 * i40e_vc_send_resp_to_vf 1280 * @vf: pointer to the VF info 1281 * @opcode: operation code 1282 * @retval: return value 1283 * 1284 * send resp msg to VF 1285 **/ 1286 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1287 enum i40e_virtchnl_ops opcode, 1288 i40e_status retval) 1289 { 1290 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1291 } 1292 1293 /** 1294 * i40e_vc_get_version_msg 1295 * @vf: pointer to the VF info 1296 * 1297 * called from the VF to request the API version used by the PF 1298 **/ 1299 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1300 { 1301 struct i40e_virtchnl_version_info info = { 1302 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR 1303 }; 1304 1305 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg; 1306 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1307 if (VF_IS_V10(vf)) 1308 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1309 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, 1310 I40E_SUCCESS, (u8 *)&info, 1311 sizeof(struct 1312 i40e_virtchnl_version_info)); 1313 } 1314 1315 /** 1316 * i40e_vc_get_vf_resources_msg 1317 * @vf: pointer to the VF info 1318 * @msg: pointer to the msg buffer 1319 * @msglen: msg length 1320 * 1321 * called from the VF to request its resources 1322 **/ 1323 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1324 { 1325 struct i40e_virtchnl_vf_resource *vfres = NULL; 1326 struct i40e_pf *pf = vf->pf; 1327 i40e_status aq_ret = 0; 1328 struct i40e_vsi *vsi; 1329 int num_vsis = 1; 1330 int len = 0; 1331 int ret; 1332 1333 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 1334 aq_ret = I40E_ERR_PARAM; 1335 goto err; 1336 } 1337 1338 len = (sizeof(struct i40e_virtchnl_vf_resource) + 1339 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); 1340 1341 vfres = kzalloc(len, GFP_KERNEL); 1342 if (!vfres) { 1343 aq_ret = I40E_ERR_NO_MEMORY; 1344 len = 0; 1345 goto err; 1346 } 1347 if (VF_IS_V11(vf)) 1348 vf->driver_caps = *(u32 *)msg; 1349 else 1350 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 | 1351 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG | 1352 I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1353 1354 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; 1355 vsi = pf->vsi[vf->lan_vsi_idx]; 1356 if (!vsi->info.pvid) 1357 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1358 1359 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) && 1360 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) { 1361 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP; 1362 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states); 1363 } 1364 1365 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) { 1366 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF; 1367 } else { 1368 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) && 1369 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 1370 vfres->vf_offload_flags |= 1371 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1372 else 1373 vfres->vf_offload_flags |= 1374 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG; 1375 } 1376 1377 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1378 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1379 vfres->vf_offload_flags |= 1380 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1381 } 1382 1383 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 1384 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 1385 dev_err(&pf->pdev->dev, 1386 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 1387 vf->vf_id); 1388 ret = I40E_ERR_PARAM; 1389 goto err; 1390 } 1391 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1392 } 1393 1394 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) { 1395 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1396 vfres->vf_offload_flags |= 1397 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1398 } 1399 1400 vfres->num_vsis = num_vsis; 1401 vfres->num_queue_pairs = vf->num_queue_pairs; 1402 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 1403 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 1404 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 1405 1406 if (vf->lan_vsi_idx) { 1407 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 1408 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV; 1409 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 1410 /* VFs only use TC 0 */ 1411 vfres->vsi_res[0].qset_handle 1412 = le16_to_cpu(vsi->info.qs_handle[0]); 1413 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 1414 vf->default_lan_addr.addr); 1415 } 1416 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 1417 1418 err: 1419 /* send the response back to the VF */ 1420 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, 1421 aq_ret, (u8 *)vfres, len); 1422 1423 kfree(vfres); 1424 return ret; 1425 } 1426 1427 /** 1428 * i40e_vc_reset_vf_msg 1429 * @vf: pointer to the VF info 1430 * @msg: pointer to the msg buffer 1431 * @msglen: msg length 1432 * 1433 * called from the VF to reset itself, 1434 * unlike other virtchnl messages, PF driver 1435 * doesn't send the response back to the VF 1436 **/ 1437 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 1438 { 1439 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) 1440 i40e_reset_vf(vf, false); 1441 } 1442 1443 /** 1444 * i40e_getnum_vf_vsi_vlan_filters 1445 * @vsi: pointer to the vsi 1446 * 1447 * called to get the number of VLANs offloaded on this VF 1448 **/ 1449 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1450 { 1451 struct i40e_mac_filter *f; 1452 int num_vlans = 0, bkt; 1453 1454 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1455 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1456 num_vlans++; 1457 } 1458 1459 return num_vlans; 1460 } 1461 1462 /** 1463 * i40e_vc_config_promiscuous_mode_msg 1464 * @vf: pointer to the VF info 1465 * @msg: pointer to the msg buffer 1466 * @msglen: msg length 1467 * 1468 * called from the VF to configure the promiscuous mode of 1469 * VF vsis 1470 **/ 1471 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, 1472 u8 *msg, u16 msglen) 1473 { 1474 struct i40e_virtchnl_promisc_info *info = 1475 (struct i40e_virtchnl_promisc_info *)msg; 1476 struct i40e_pf *pf = vf->pf; 1477 struct i40e_hw *hw = &pf->hw; 1478 struct i40e_mac_filter *f; 1479 i40e_status aq_ret = 0; 1480 bool allmulti = false; 1481 struct i40e_vsi *vsi; 1482 bool alluni = false; 1483 int aq_err = 0; 1484 int bkt; 1485 1486 vsi = i40e_find_vsi_from_id(pf, info->vsi_id); 1487 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1488 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || 1489 !vsi) { 1490 aq_ret = I40E_ERR_PARAM; 1491 goto error_param; 1492 } 1493 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 1494 dev_err(&pf->pdev->dev, 1495 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 1496 vf->vf_id); 1497 /* Lie to the VF on purpose. */ 1498 aq_ret = 0; 1499 goto error_param; 1500 } 1501 /* Multicast promiscuous handling*/ 1502 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) 1503 allmulti = true; 1504 1505 if (vf->port_vlan_id) { 1506 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, 1507 allmulti, 1508 vf->port_vlan_id, 1509 NULL); 1510 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1511 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1512 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1513 continue; 1514 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, 1515 vsi->seid, 1516 allmulti, 1517 f->vlan, 1518 NULL); 1519 aq_err = pf->hw.aq.asq_last_status; 1520 if (aq_ret) { 1521 dev_err(&pf->pdev->dev, 1522 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n", 1523 f->vlan, 1524 i40e_stat_str(&pf->hw, aq_ret), 1525 i40e_aq_str(&pf->hw, aq_err)); 1526 break; 1527 } 1528 } 1529 } else { 1530 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, 1531 allmulti, NULL); 1532 aq_err = pf->hw.aq.asq_last_status; 1533 if (aq_ret) { 1534 dev_err(&pf->pdev->dev, 1535 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1536 vf->vf_id, 1537 i40e_stat_str(&pf->hw, aq_ret), 1538 i40e_aq_str(&pf->hw, aq_err)); 1539 goto error_param_int; 1540 } 1541 } 1542 1543 if (!aq_ret) { 1544 dev_info(&pf->pdev->dev, 1545 "VF %d successfully set multicast promiscuous mode\n", 1546 vf->vf_id); 1547 if (allmulti) 1548 set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); 1549 else 1550 clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); 1551 } 1552 1553 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC) 1554 alluni = true; 1555 if (vf->port_vlan_id) { 1556 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, 1557 alluni, 1558 vf->port_vlan_id, 1559 NULL); 1560 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1561 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1562 aq_ret = 0; 1563 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) { 1564 aq_ret = 1565 i40e_aq_set_vsi_uc_promisc_on_vlan(hw, 1566 vsi->seid, 1567 alluni, 1568 f->vlan, 1569 NULL); 1570 aq_err = pf->hw.aq.asq_last_status; 1571 } 1572 if (aq_ret) 1573 dev_err(&pf->pdev->dev, 1574 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n", 1575 f->vlan, 1576 i40e_stat_str(&pf->hw, aq_ret), 1577 i40e_aq_str(&pf->hw, aq_err)); 1578 } 1579 } else { 1580 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, 1581 allmulti, NULL, 1582 true); 1583 aq_err = pf->hw.aq.asq_last_status; 1584 if (aq_ret) 1585 dev_err(&pf->pdev->dev, 1586 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n", 1587 vf->vf_id, info->flags, 1588 i40e_stat_str(&pf->hw, aq_ret), 1589 i40e_aq_str(&pf->hw, aq_err)); 1590 } 1591 1592 error_param_int: 1593 if (!aq_ret) { 1594 dev_info(&pf->pdev->dev, 1595 "VF %d successfully set unicast promiscuous mode\n", 1596 vf->vf_id); 1597 if (alluni) 1598 set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); 1599 else 1600 clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); 1601 } 1602 1603 error_param: 1604 /* send the response to the VF */ 1605 return i40e_vc_send_resp_to_vf(vf, 1606 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 1607 aq_ret); 1608 } 1609 1610 /** 1611 * i40e_vc_config_queues_msg 1612 * @vf: pointer to the VF info 1613 * @msg: pointer to the msg buffer 1614 * @msglen: msg length 1615 * 1616 * called from the VF to configure the rx/tx 1617 * queues 1618 **/ 1619 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1620 { 1621 struct i40e_virtchnl_vsi_queue_config_info *qci = 1622 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 1623 struct i40e_virtchnl_queue_pair_info *qpi; 1624 struct i40e_pf *pf = vf->pf; 1625 u16 vsi_id, vsi_queue_id; 1626 i40e_status aq_ret = 0; 1627 int i; 1628 1629 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1630 aq_ret = I40E_ERR_PARAM; 1631 goto error_param; 1632 } 1633 1634 vsi_id = qci->vsi_id; 1635 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1636 aq_ret = I40E_ERR_PARAM; 1637 goto error_param; 1638 } 1639 for (i = 0; i < qci->num_queue_pairs; i++) { 1640 qpi = &qci->qpair[i]; 1641 vsi_queue_id = qpi->txq.queue_id; 1642 if ((qpi->txq.vsi_id != vsi_id) || 1643 (qpi->rxq.vsi_id != vsi_id) || 1644 (qpi->rxq.queue_id != vsi_queue_id) || 1645 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { 1646 aq_ret = I40E_ERR_PARAM; 1647 goto error_param; 1648 } 1649 1650 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 1651 &qpi->rxq) || 1652 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 1653 &qpi->txq)) { 1654 aq_ret = I40E_ERR_PARAM; 1655 goto error_param; 1656 } 1657 } 1658 /* set vsi num_queue_pairs in use to num configured by VF */ 1659 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs; 1660 1661 error_param: 1662 /* send the response to the VF */ 1663 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, 1664 aq_ret); 1665 } 1666 1667 /** 1668 * i40e_vc_config_irq_map_msg 1669 * @vf: pointer to the VF info 1670 * @msg: pointer to the msg buffer 1671 * @msglen: msg length 1672 * 1673 * called from the VF to configure the irq to 1674 * queue map 1675 **/ 1676 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1677 { 1678 struct i40e_virtchnl_irq_map_info *irqmap_info = 1679 (struct i40e_virtchnl_irq_map_info *)msg; 1680 struct i40e_virtchnl_vector_map *map; 1681 u16 vsi_id, vsi_queue_id, vector_id; 1682 i40e_status aq_ret = 0; 1683 unsigned long tempmap; 1684 int i; 1685 1686 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1687 aq_ret = I40E_ERR_PARAM; 1688 goto error_param; 1689 } 1690 1691 for (i = 0; i < irqmap_info->num_vectors; i++) { 1692 map = &irqmap_info->vecmap[i]; 1693 1694 vector_id = map->vector_id; 1695 vsi_id = map->vsi_id; 1696 /* validate msg params */ 1697 if (!i40e_vc_isvalid_vector_id(vf, vector_id) || 1698 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1699 aq_ret = I40E_ERR_PARAM; 1700 goto error_param; 1701 } 1702 1703 /* lookout for the invalid queue index */ 1704 tempmap = map->rxq_map; 1705 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1706 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1707 vsi_queue_id)) { 1708 aq_ret = I40E_ERR_PARAM; 1709 goto error_param; 1710 } 1711 } 1712 1713 tempmap = map->txq_map; 1714 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1715 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1716 vsi_queue_id)) { 1717 aq_ret = I40E_ERR_PARAM; 1718 goto error_param; 1719 } 1720 } 1721 1722 i40e_config_irq_link_list(vf, vsi_id, map); 1723 } 1724 error_param: 1725 /* send the response to the VF */ 1726 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, 1727 aq_ret); 1728 } 1729 1730 /** 1731 * i40e_vc_enable_queues_msg 1732 * @vf: pointer to the VF info 1733 * @msg: pointer to the msg buffer 1734 * @msglen: msg length 1735 * 1736 * called from the VF to enable all or specific queue(s) 1737 **/ 1738 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1739 { 1740 struct i40e_virtchnl_queue_select *vqs = 1741 (struct i40e_virtchnl_queue_select *)msg; 1742 struct i40e_pf *pf = vf->pf; 1743 u16 vsi_id = vqs->vsi_id; 1744 i40e_status aq_ret = 0; 1745 1746 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1747 aq_ret = I40E_ERR_PARAM; 1748 goto error_param; 1749 } 1750 1751 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1752 aq_ret = I40E_ERR_PARAM; 1753 goto error_param; 1754 } 1755 1756 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1757 aq_ret = I40E_ERR_PARAM; 1758 goto error_param; 1759 } 1760 1761 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx])) 1762 aq_ret = I40E_ERR_TIMEOUT; 1763 error_param: 1764 /* send the response to the VF */ 1765 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, 1766 aq_ret); 1767 } 1768 1769 /** 1770 * i40e_vc_disable_queues_msg 1771 * @vf: pointer to the VF info 1772 * @msg: pointer to the msg buffer 1773 * @msglen: msg length 1774 * 1775 * called from the VF to disable all or specific 1776 * queue(s) 1777 **/ 1778 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1779 { 1780 struct i40e_virtchnl_queue_select *vqs = 1781 (struct i40e_virtchnl_queue_select *)msg; 1782 struct i40e_pf *pf = vf->pf; 1783 i40e_status aq_ret = 0; 1784 1785 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1786 aq_ret = I40E_ERR_PARAM; 1787 goto error_param; 1788 } 1789 1790 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1791 aq_ret = I40E_ERR_PARAM; 1792 goto error_param; 1793 } 1794 1795 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1796 aq_ret = I40E_ERR_PARAM; 1797 goto error_param; 1798 } 1799 1800 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1801 1802 error_param: 1803 /* send the response to the VF */ 1804 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, 1805 aq_ret); 1806 } 1807 1808 /** 1809 * i40e_vc_get_stats_msg 1810 * @vf: pointer to the VF info 1811 * @msg: pointer to the msg buffer 1812 * @msglen: msg length 1813 * 1814 * called from the VF to get vsi stats 1815 **/ 1816 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1817 { 1818 struct i40e_virtchnl_queue_select *vqs = 1819 (struct i40e_virtchnl_queue_select *)msg; 1820 struct i40e_pf *pf = vf->pf; 1821 struct i40e_eth_stats stats; 1822 i40e_status aq_ret = 0; 1823 struct i40e_vsi *vsi; 1824 1825 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 1826 1827 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1828 aq_ret = I40E_ERR_PARAM; 1829 goto error_param; 1830 } 1831 1832 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1833 aq_ret = I40E_ERR_PARAM; 1834 goto error_param; 1835 } 1836 1837 vsi = pf->vsi[vf->lan_vsi_idx]; 1838 if (!vsi) { 1839 aq_ret = I40E_ERR_PARAM; 1840 goto error_param; 1841 } 1842 i40e_update_eth_stats(vsi); 1843 stats = vsi->eth_stats; 1844 1845 error_param: 1846 /* send the response back to the VF */ 1847 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, 1848 (u8 *)&stats, sizeof(stats)); 1849 } 1850 1851 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */ 1852 #define I40E_VC_MAX_MAC_ADDR_PER_VF 8 1853 #define I40E_VC_MAX_VLAN_PER_VF 8 1854 1855 /** 1856 * i40e_check_vf_permission 1857 * @vf: pointer to the VF info 1858 * @macaddr: pointer to the MAC Address being checked 1859 * 1860 * Check if the VF has permission to add or delete unicast MAC address 1861 * filters and return error code -EPERM if not. Then check if the 1862 * address filter requested is broadcast or zero and if so return 1863 * an invalid MAC address error code. 1864 **/ 1865 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) 1866 { 1867 struct i40e_pf *pf = vf->pf; 1868 int ret = 0; 1869 1870 if (is_broadcast_ether_addr(macaddr) || 1871 is_zero_ether_addr(macaddr)) { 1872 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); 1873 ret = I40E_ERR_INVALID_MAC_ADDR; 1874 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && 1875 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 1876 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { 1877 /* If the host VMM administrator has set the VF MAC address 1878 * administratively via the ndo_set_vf_mac command then deny 1879 * permission to the VF to add or delete unicast MAC addresses. 1880 * Unless the VF is privileged and then it can do whatever. 1881 * The VF may request to set the MAC address filter already 1882 * assigned to it so do not return an error in that case. 1883 */ 1884 dev_err(&pf->pdev->dev, 1885 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n"); 1886 ret = -EPERM; 1887 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) && 1888 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 1889 dev_err(&pf->pdev->dev, 1890 "VF is not trusted, switch the VF to trusted to add more functionality\n"); 1891 ret = -EPERM; 1892 } 1893 return ret; 1894 } 1895 1896 /** 1897 * i40e_vc_add_mac_addr_msg 1898 * @vf: pointer to the VF info 1899 * @msg: pointer to the msg buffer 1900 * @msglen: msg length 1901 * 1902 * add guest mac address filter 1903 **/ 1904 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1905 { 1906 struct i40e_virtchnl_ether_addr_list *al = 1907 (struct i40e_virtchnl_ether_addr_list *)msg; 1908 struct i40e_pf *pf = vf->pf; 1909 struct i40e_vsi *vsi = NULL; 1910 u16 vsi_id = al->vsi_id; 1911 i40e_status ret = 0; 1912 int i; 1913 1914 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1915 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1916 ret = I40E_ERR_PARAM; 1917 goto error_param; 1918 } 1919 1920 for (i = 0; i < al->num_elements; i++) { 1921 ret = i40e_check_vf_permission(vf, al->list[i].addr); 1922 if (ret) 1923 goto error_param; 1924 } 1925 vsi = pf->vsi[vf->lan_vsi_idx]; 1926 1927 /* Lock once, because all function inside for loop accesses VSI's 1928 * MAC filter list which needs to be protected using same lock. 1929 */ 1930 spin_lock_bh(&vsi->mac_filter_hash_lock); 1931 1932 /* add new addresses to the list */ 1933 for (i = 0; i < al->num_elements; i++) { 1934 struct i40e_mac_filter *f; 1935 1936 f = i40e_find_mac(vsi, al->list[i].addr); 1937 if (!f) { 1938 if (i40e_is_vsi_in_vlan(vsi)) 1939 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr); 1940 else 1941 f = i40e_add_filter(vsi, al->list[i].addr, -1); 1942 } 1943 1944 if (!f) { 1945 dev_err(&pf->pdev->dev, 1946 "Unable to add MAC filter %pM for VF %d\n", 1947 al->list[i].addr, vf->vf_id); 1948 ret = I40E_ERR_PARAM; 1949 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1950 goto error_param; 1951 } else { 1952 vf->num_mac++; 1953 } 1954 } 1955 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1956 1957 /* program the updated filter list */ 1958 ret = i40e_sync_vsi_filters(vsi); 1959 if (ret) 1960 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 1961 vf->vf_id, ret); 1962 1963 error_param: 1964 /* send the response to the VF */ 1965 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, 1966 ret); 1967 } 1968 1969 /** 1970 * i40e_vc_del_mac_addr_msg 1971 * @vf: pointer to the VF info 1972 * @msg: pointer to the msg buffer 1973 * @msglen: msg length 1974 * 1975 * remove guest mac address filter 1976 **/ 1977 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1978 { 1979 struct i40e_virtchnl_ether_addr_list *al = 1980 (struct i40e_virtchnl_ether_addr_list *)msg; 1981 struct i40e_pf *pf = vf->pf; 1982 struct i40e_vsi *vsi = NULL; 1983 u16 vsi_id = al->vsi_id; 1984 i40e_status ret = 0; 1985 int i; 1986 1987 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1988 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1989 ret = I40E_ERR_PARAM; 1990 goto error_param; 1991 } 1992 1993 for (i = 0; i < al->num_elements; i++) { 1994 if (is_broadcast_ether_addr(al->list[i].addr) || 1995 is_zero_ether_addr(al->list[i].addr)) { 1996 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 1997 al->list[i].addr, vf->vf_id); 1998 ret = I40E_ERR_INVALID_MAC_ADDR; 1999 goto error_param; 2000 } 2001 } 2002 vsi = pf->vsi[vf->lan_vsi_idx]; 2003 2004 spin_lock_bh(&vsi->mac_filter_hash_lock); 2005 /* delete addresses from the list */ 2006 for (i = 0; i < al->num_elements; i++) 2007 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr)) { 2008 ret = I40E_ERR_INVALID_MAC_ADDR; 2009 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2010 goto error_param; 2011 } else { 2012 vf->num_mac--; 2013 } 2014 2015 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2016 2017 /* program the updated filter list */ 2018 ret = i40e_sync_vsi_filters(vsi); 2019 if (ret) 2020 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2021 vf->vf_id, ret); 2022 2023 error_param: 2024 /* send the response to the VF */ 2025 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, 2026 ret); 2027 } 2028 2029 /** 2030 * i40e_vc_add_vlan_msg 2031 * @vf: pointer to the VF info 2032 * @msg: pointer to the msg buffer 2033 * @msglen: msg length 2034 * 2035 * program guest vlan id 2036 **/ 2037 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2038 { 2039 struct i40e_virtchnl_vlan_filter_list *vfl = 2040 (struct i40e_virtchnl_vlan_filter_list *)msg; 2041 struct i40e_pf *pf = vf->pf; 2042 struct i40e_vsi *vsi = NULL; 2043 u16 vsi_id = vfl->vsi_id; 2044 i40e_status aq_ret = 0; 2045 int i; 2046 2047 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2048 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2049 dev_err(&pf->pdev->dev, 2050 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2051 goto error_param; 2052 } 2053 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2054 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2055 aq_ret = I40E_ERR_PARAM; 2056 goto error_param; 2057 } 2058 2059 for (i = 0; i < vfl->num_elements; i++) { 2060 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2061 aq_ret = I40E_ERR_PARAM; 2062 dev_err(&pf->pdev->dev, 2063 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2064 goto error_param; 2065 } 2066 } 2067 vsi = pf->vsi[vf->lan_vsi_idx]; 2068 if (vsi->info.pvid) { 2069 aq_ret = I40E_ERR_PARAM; 2070 goto error_param; 2071 } 2072 2073 i40e_vlan_stripping_enable(vsi); 2074 for (i = 0; i < vfl->num_elements; i++) { 2075 /* add new VLAN filter */ 2076 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 2077 if (!ret) 2078 vf->num_vlan++; 2079 2080 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) 2081 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2082 true, 2083 vfl->vlan_id[i], 2084 NULL); 2085 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) 2086 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2087 true, 2088 vfl->vlan_id[i], 2089 NULL); 2090 2091 if (ret) 2092 dev_err(&pf->pdev->dev, 2093 "Unable to add VLAN filter %d for VF %d, error %d\n", 2094 vfl->vlan_id[i], vf->vf_id, ret); 2095 } 2096 2097 error_param: 2098 /* send the response to the VF */ 2099 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); 2100 } 2101 2102 /** 2103 * i40e_vc_remove_vlan_msg 2104 * @vf: pointer to the VF info 2105 * @msg: pointer to the msg buffer 2106 * @msglen: msg length 2107 * 2108 * remove programmed guest vlan id 2109 **/ 2110 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2111 { 2112 struct i40e_virtchnl_vlan_filter_list *vfl = 2113 (struct i40e_virtchnl_vlan_filter_list *)msg; 2114 struct i40e_pf *pf = vf->pf; 2115 struct i40e_vsi *vsi = NULL; 2116 u16 vsi_id = vfl->vsi_id; 2117 i40e_status aq_ret = 0; 2118 int i; 2119 2120 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2121 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2122 aq_ret = I40E_ERR_PARAM; 2123 goto error_param; 2124 } 2125 2126 for (i = 0; i < vfl->num_elements; i++) { 2127 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2128 aq_ret = I40E_ERR_PARAM; 2129 goto error_param; 2130 } 2131 } 2132 2133 vsi = pf->vsi[vf->lan_vsi_idx]; 2134 if (vsi->info.pvid) { 2135 aq_ret = I40E_ERR_PARAM; 2136 goto error_param; 2137 } 2138 2139 for (i = 0; i < vfl->num_elements; i++) { 2140 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 2141 vf->num_vlan--; 2142 2143 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) 2144 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2145 false, 2146 vfl->vlan_id[i], 2147 NULL); 2148 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) 2149 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2150 false, 2151 vfl->vlan_id[i], 2152 NULL); 2153 } 2154 2155 error_param: 2156 /* send the response to the VF */ 2157 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); 2158 } 2159 2160 /** 2161 * i40e_vc_iwarp_msg 2162 * @vf: pointer to the VF info 2163 * @msg: pointer to the msg buffer 2164 * @msglen: msg length 2165 * 2166 * called from the VF for the iwarp msgs 2167 **/ 2168 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2169 { 2170 struct i40e_pf *pf = vf->pf; 2171 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 2172 i40e_status aq_ret = 0; 2173 2174 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2175 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 2176 aq_ret = I40E_ERR_PARAM; 2177 goto error_param; 2178 } 2179 2180 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 2181 msg, msglen); 2182 2183 error_param: 2184 /* send the response to the VF */ 2185 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP, 2186 aq_ret); 2187 } 2188 2189 /** 2190 * i40e_vc_iwarp_qvmap_msg 2191 * @vf: pointer to the VF info 2192 * @msg: pointer to the msg buffer 2193 * @msglen: msg length 2194 * @config: config qvmap or release it 2195 * 2196 * called from the VF for the iwarp msgs 2197 **/ 2198 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen, 2199 bool config) 2200 { 2201 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = 2202 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2203 i40e_status aq_ret = 0; 2204 2205 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2206 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 2207 aq_ret = I40E_ERR_PARAM; 2208 goto error_param; 2209 } 2210 2211 if (config) { 2212 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2213 aq_ret = I40E_ERR_PARAM; 2214 } else { 2215 i40e_release_iwarp_qvlist(vf); 2216 } 2217 2218 error_param: 2219 /* send the response to the VF */ 2220 return i40e_vc_send_resp_to_vf(vf, 2221 config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 2222 I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 2223 aq_ret); 2224 } 2225 2226 /** 2227 * i40e_vc_config_rss_key 2228 * @vf: pointer to the VF info 2229 * @msg: pointer to the msg buffer 2230 * @msglen: msg length 2231 * 2232 * Configure the VF's RSS key 2233 **/ 2234 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen) 2235 { 2236 struct i40e_virtchnl_rss_key *vrk = 2237 (struct i40e_virtchnl_rss_key *)msg; 2238 struct i40e_pf *pf = vf->pf; 2239 struct i40e_vsi *vsi = NULL; 2240 u16 vsi_id = vrk->vsi_id; 2241 i40e_status aq_ret = 0; 2242 2243 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2244 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2245 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { 2246 aq_ret = I40E_ERR_PARAM; 2247 goto err; 2248 } 2249 2250 vsi = pf->vsi[vf->lan_vsi_idx]; 2251 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 2252 err: 2253 /* send the response to the VF */ 2254 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY, 2255 aq_ret); 2256 } 2257 2258 /** 2259 * i40e_vc_config_rss_lut 2260 * @vf: pointer to the VF info 2261 * @msg: pointer to the msg buffer 2262 * @msglen: msg length 2263 * 2264 * Configure the VF's RSS LUT 2265 **/ 2266 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen) 2267 { 2268 struct i40e_virtchnl_rss_lut *vrl = 2269 (struct i40e_virtchnl_rss_lut *)msg; 2270 struct i40e_pf *pf = vf->pf; 2271 struct i40e_vsi *vsi = NULL; 2272 u16 vsi_id = vrl->vsi_id; 2273 i40e_status aq_ret = 0; 2274 2275 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2276 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2277 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { 2278 aq_ret = I40E_ERR_PARAM; 2279 goto err; 2280 } 2281 2282 vsi = pf->vsi[vf->lan_vsi_idx]; 2283 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 2284 /* send the response to the VF */ 2285 err: 2286 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT, 2287 aq_ret); 2288 } 2289 2290 /** 2291 * i40e_vc_get_rss_hena 2292 * @vf: pointer to the VF info 2293 * @msg: pointer to the msg buffer 2294 * @msglen: msg length 2295 * 2296 * Return the RSS HENA bits allowed by the hardware 2297 **/ 2298 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2299 { 2300 struct i40e_virtchnl_rss_hena *vrh = NULL; 2301 struct i40e_pf *pf = vf->pf; 2302 i40e_status aq_ret = 0; 2303 int len = 0; 2304 2305 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 2306 aq_ret = I40E_ERR_PARAM; 2307 goto err; 2308 } 2309 len = sizeof(struct i40e_virtchnl_rss_hena); 2310 2311 vrh = kzalloc(len, GFP_KERNEL); 2312 if (!vrh) { 2313 aq_ret = I40E_ERR_NO_MEMORY; 2314 len = 0; 2315 goto err; 2316 } 2317 vrh->hena = i40e_pf_get_default_rss_hena(pf); 2318 err: 2319 /* send the response back to the VF */ 2320 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS, 2321 aq_ret, (u8 *)vrh, len); 2322 kfree(vrh); 2323 return aq_ret; 2324 } 2325 2326 /** 2327 * i40e_vc_set_rss_hena 2328 * @vf: pointer to the VF info 2329 * @msg: pointer to the msg buffer 2330 * @msglen: msg length 2331 * 2332 * Set the RSS HENA bits for the VF 2333 **/ 2334 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2335 { 2336 struct i40e_virtchnl_rss_hena *vrh = 2337 (struct i40e_virtchnl_rss_hena *)msg; 2338 struct i40e_pf *pf = vf->pf; 2339 struct i40e_hw *hw = &pf->hw; 2340 i40e_status aq_ret = 0; 2341 2342 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 2343 aq_ret = I40E_ERR_PARAM; 2344 goto err; 2345 } 2346 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 2347 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 2348 (u32)(vrh->hena >> 32)); 2349 2350 /* send the response to the VF */ 2351 err: 2352 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA, 2353 aq_ret); 2354 } 2355 2356 /** 2357 * i40e_vc_validate_vf_msg 2358 * @vf: pointer to the VF info 2359 * @msg: pointer to the msg buffer 2360 * @msglen: msg length 2361 * @msghndl: msg handle 2362 * 2363 * validate msg 2364 **/ 2365 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, 2366 u32 v_retval, u8 *msg, u16 msglen) 2367 { 2368 bool err_msg_format = false; 2369 int valid_len = 0; 2370 2371 /* Check if VF is disabled. */ 2372 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states)) 2373 return I40E_ERR_PARAM; 2374 2375 /* Validate message length. */ 2376 switch (v_opcode) { 2377 case I40E_VIRTCHNL_OP_VERSION: 2378 valid_len = sizeof(struct i40e_virtchnl_version_info); 2379 break; 2380 case I40E_VIRTCHNL_OP_RESET_VF: 2381 break; 2382 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2383 if (VF_IS_V11(vf)) 2384 valid_len = sizeof(u32); 2385 break; 2386 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: 2387 valid_len = sizeof(struct i40e_virtchnl_txq_info); 2388 break; 2389 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: 2390 valid_len = sizeof(struct i40e_virtchnl_rxq_info); 2391 break; 2392 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2393 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); 2394 if (msglen >= valid_len) { 2395 struct i40e_virtchnl_vsi_queue_config_info *vqc = 2396 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 2397 valid_len += (vqc->num_queue_pairs * 2398 sizeof(struct 2399 i40e_virtchnl_queue_pair_info)); 2400 if (vqc->num_queue_pairs == 0) 2401 err_msg_format = true; 2402 } 2403 break; 2404 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2405 valid_len = sizeof(struct i40e_virtchnl_irq_map_info); 2406 if (msglen >= valid_len) { 2407 struct i40e_virtchnl_irq_map_info *vimi = 2408 (struct i40e_virtchnl_irq_map_info *)msg; 2409 valid_len += (vimi->num_vectors * 2410 sizeof(struct i40e_virtchnl_vector_map)); 2411 if (vimi->num_vectors == 0) 2412 err_msg_format = true; 2413 } 2414 break; 2415 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2416 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2417 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2418 break; 2419 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2420 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2421 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); 2422 if (msglen >= valid_len) { 2423 struct i40e_virtchnl_ether_addr_list *veal = 2424 (struct i40e_virtchnl_ether_addr_list *)msg; 2425 valid_len += veal->num_elements * 2426 sizeof(struct i40e_virtchnl_ether_addr); 2427 if (veal->num_elements == 0) 2428 err_msg_format = true; 2429 } 2430 break; 2431 case I40E_VIRTCHNL_OP_ADD_VLAN: 2432 case I40E_VIRTCHNL_OP_DEL_VLAN: 2433 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); 2434 if (msglen >= valid_len) { 2435 struct i40e_virtchnl_vlan_filter_list *vfl = 2436 (struct i40e_virtchnl_vlan_filter_list *)msg; 2437 valid_len += vfl->num_elements * sizeof(u16); 2438 if (vfl->num_elements == 0) 2439 err_msg_format = true; 2440 } 2441 break; 2442 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2443 valid_len = sizeof(struct i40e_virtchnl_promisc_info); 2444 break; 2445 case I40E_VIRTCHNL_OP_GET_STATS: 2446 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2447 break; 2448 case I40E_VIRTCHNL_OP_IWARP: 2449 /* These messages are opaque to us and will be validated in 2450 * the RDMA client code. We just need to check for nonzero 2451 * length. The firmware will enforce max length restrictions. 2452 */ 2453 if (msglen) 2454 valid_len = msglen; 2455 else 2456 err_msg_format = true; 2457 break; 2458 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2459 valid_len = 0; 2460 break; 2461 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2462 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info); 2463 if (msglen >= valid_len) { 2464 struct i40e_virtchnl_iwarp_qvlist_info *qv = 2465 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2466 if (qv->num_vectors == 0) { 2467 err_msg_format = true; 2468 break; 2469 } 2470 valid_len += ((qv->num_vectors - 1) * 2471 sizeof(struct i40e_virtchnl_iwarp_qv_info)); 2472 } 2473 break; 2474 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2475 valid_len = sizeof(struct i40e_virtchnl_rss_key); 2476 if (msglen >= valid_len) { 2477 struct i40e_virtchnl_rss_key *vrk = 2478 (struct i40e_virtchnl_rss_key *)msg; 2479 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 2480 err_msg_format = true; 2481 break; 2482 } 2483 valid_len += vrk->key_len - 1; 2484 } 2485 break; 2486 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2487 valid_len = sizeof(struct i40e_virtchnl_rss_lut); 2488 if (msglen >= valid_len) { 2489 struct i40e_virtchnl_rss_lut *vrl = 2490 (struct i40e_virtchnl_rss_lut *)msg; 2491 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 2492 err_msg_format = true; 2493 break; 2494 } 2495 valid_len += vrl->lut_entries - 1; 2496 } 2497 break; 2498 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2499 break; 2500 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2501 valid_len = sizeof(struct i40e_virtchnl_rss_hena); 2502 break; 2503 /* These are always errors coming from the VF. */ 2504 case I40E_VIRTCHNL_OP_EVENT: 2505 case I40E_VIRTCHNL_OP_UNKNOWN: 2506 default: 2507 return -EPERM; 2508 } 2509 /* few more checks */ 2510 if ((valid_len != msglen) || (err_msg_format)) { 2511 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 2512 return -EINVAL; 2513 } else { 2514 return 0; 2515 } 2516 } 2517 2518 /** 2519 * i40e_vc_process_vf_msg 2520 * @pf: pointer to the PF structure 2521 * @vf_id: source VF id 2522 * @msg: pointer to the msg buffer 2523 * @msglen: msg length 2524 * @msghndl: msg handle 2525 * 2526 * called from the common aeq/arq handler to 2527 * process request from VF 2528 **/ 2529 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 2530 u32 v_retval, u8 *msg, u16 msglen) 2531 { 2532 struct i40e_hw *hw = &pf->hw; 2533 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 2534 struct i40e_vf *vf; 2535 int ret; 2536 2537 pf->vf_aq_requests++; 2538 if (local_vf_id >= pf->num_alloc_vfs) 2539 return -EINVAL; 2540 vf = &(pf->vf[local_vf_id]); 2541 /* perform basic checks on the msg */ 2542 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); 2543 2544 if (ret) { 2545 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 2546 local_vf_id, v_opcode, msglen); 2547 return ret; 2548 } 2549 2550 switch (v_opcode) { 2551 case I40E_VIRTCHNL_OP_VERSION: 2552 ret = i40e_vc_get_version_msg(vf, msg); 2553 break; 2554 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2555 ret = i40e_vc_get_vf_resources_msg(vf, msg); 2556 break; 2557 case I40E_VIRTCHNL_OP_RESET_VF: 2558 i40e_vc_reset_vf_msg(vf); 2559 ret = 0; 2560 break; 2561 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2562 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); 2563 break; 2564 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2565 ret = i40e_vc_config_queues_msg(vf, msg, msglen); 2566 break; 2567 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2568 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); 2569 break; 2570 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2571 ret = i40e_vc_enable_queues_msg(vf, msg, msglen); 2572 i40e_vc_notify_vf_link_state(vf); 2573 break; 2574 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2575 ret = i40e_vc_disable_queues_msg(vf, msg, msglen); 2576 break; 2577 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2578 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); 2579 break; 2580 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2581 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); 2582 break; 2583 case I40E_VIRTCHNL_OP_ADD_VLAN: 2584 ret = i40e_vc_add_vlan_msg(vf, msg, msglen); 2585 break; 2586 case I40E_VIRTCHNL_OP_DEL_VLAN: 2587 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); 2588 break; 2589 case I40E_VIRTCHNL_OP_GET_STATS: 2590 ret = i40e_vc_get_stats_msg(vf, msg, msglen); 2591 break; 2592 case I40E_VIRTCHNL_OP_IWARP: 2593 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 2594 break; 2595 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2596 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true); 2597 break; 2598 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2599 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false); 2600 break; 2601 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2602 ret = i40e_vc_config_rss_key(vf, msg, msglen); 2603 break; 2604 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2605 ret = i40e_vc_config_rss_lut(vf, msg, msglen); 2606 break; 2607 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2608 ret = i40e_vc_get_rss_hena(vf, msg, msglen); 2609 break; 2610 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2611 ret = i40e_vc_set_rss_hena(vf, msg, msglen); 2612 break; 2613 2614 case I40E_VIRTCHNL_OP_UNKNOWN: 2615 default: 2616 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 2617 v_opcode, local_vf_id); 2618 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 2619 I40E_ERR_NOT_IMPLEMENTED); 2620 break; 2621 } 2622 2623 return ret; 2624 } 2625 2626 /** 2627 * i40e_vc_process_vflr_event 2628 * @pf: pointer to the PF structure 2629 * 2630 * called from the vlfr irq handler to 2631 * free up VF resources and state variables 2632 **/ 2633 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 2634 { 2635 struct i40e_hw *hw = &pf->hw; 2636 u32 reg, reg_idx, bit_idx; 2637 struct i40e_vf *vf; 2638 int vf_id; 2639 2640 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) 2641 return 0; 2642 2643 /* Re-enable the VFLR interrupt cause here, before looking for which 2644 * VF got reset. Otherwise, if another VF gets a reset while the 2645 * first one is being processed, that interrupt will be lost, and 2646 * that VF will be stuck in reset forever. 2647 */ 2648 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 2649 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 2650 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 2651 i40e_flush(hw); 2652 2653 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state); 2654 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 2655 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 2656 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 2657 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 2658 vf = &pf->vf[vf_id]; 2659 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 2660 if (reg & BIT(bit_idx)) 2661 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 2662 i40e_reset_vf(vf, true); 2663 } 2664 2665 return 0; 2666 } 2667 2668 /** 2669 * i40e_ndo_set_vf_mac 2670 * @netdev: network interface device structure 2671 * @vf_id: VF identifier 2672 * @mac: mac address 2673 * 2674 * program VF mac address 2675 **/ 2676 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 2677 { 2678 struct i40e_netdev_priv *np = netdev_priv(netdev); 2679 struct i40e_vsi *vsi = np->vsi; 2680 struct i40e_pf *pf = vsi->back; 2681 struct i40e_mac_filter *f; 2682 struct i40e_vf *vf; 2683 int ret = 0; 2684 int bkt; 2685 2686 /* validate the request */ 2687 if (vf_id >= pf->num_alloc_vfs) { 2688 dev_err(&pf->pdev->dev, 2689 "Invalid VF Identifier %d\n", vf_id); 2690 ret = -EINVAL; 2691 goto error_param; 2692 } 2693 2694 vf = &(pf->vf[vf_id]); 2695 vsi = pf->vsi[vf->lan_vsi_idx]; 2696 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2697 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2698 vf_id); 2699 ret = -EAGAIN; 2700 goto error_param; 2701 } 2702 2703 if (is_multicast_ether_addr(mac)) { 2704 dev_err(&pf->pdev->dev, 2705 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 2706 ret = -EINVAL; 2707 goto error_param; 2708 } 2709 2710 /* Lock once because below invoked function add/del_filter requires 2711 * mac_filter_hash_lock to be held 2712 */ 2713 spin_lock_bh(&vsi->mac_filter_hash_lock); 2714 2715 /* delete the temporary mac address */ 2716 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 2717 i40e_del_filter(vsi, vf->default_lan_addr.addr, 2718 vf->port_vlan_id ? vf->port_vlan_id : -1); 2719 2720 /* Delete all the filters for this VSI - we're going to kill it 2721 * anyway. 2722 */ 2723 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) 2724 i40e_del_filter(vsi, f->macaddr, f->vlan); 2725 2726 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2727 2728 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); 2729 /* program mac filter */ 2730 if (i40e_sync_vsi_filters(vsi)) { 2731 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 2732 ret = -EIO; 2733 goto error_param; 2734 } 2735 ether_addr_copy(vf->default_lan_addr.addr, mac); 2736 vf->pf_set_mac = true; 2737 /* Force the VF driver stop so it has to reload with new MAC address */ 2738 i40e_vc_disable_vf(pf, vf); 2739 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); 2740 2741 error_param: 2742 return ret; 2743 } 2744 2745 /** 2746 * i40e_ndo_set_vf_port_vlan 2747 * @netdev: network interface device structure 2748 * @vf_id: VF identifier 2749 * @vlan_id: mac address 2750 * @qos: priority setting 2751 * @vlan_proto: vlan protocol 2752 * 2753 * program VF vlan id and/or qos 2754 **/ 2755 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 2756 u16 vlan_id, u8 qos, __be16 vlan_proto) 2757 { 2758 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 2759 struct i40e_netdev_priv *np = netdev_priv(netdev); 2760 struct i40e_pf *pf = np->vsi->back; 2761 bool is_vsi_in_vlan = false; 2762 struct i40e_vsi *vsi; 2763 struct i40e_vf *vf; 2764 int ret = 0; 2765 2766 /* validate the request */ 2767 if (vf_id >= pf->num_alloc_vfs) { 2768 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2769 ret = -EINVAL; 2770 goto error_pvid; 2771 } 2772 2773 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { 2774 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); 2775 ret = -EINVAL; 2776 goto error_pvid; 2777 } 2778 2779 if (vlan_proto != htons(ETH_P_8021Q)) { 2780 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); 2781 ret = -EPROTONOSUPPORT; 2782 goto error_pvid; 2783 } 2784 2785 vf = &(pf->vf[vf_id]); 2786 vsi = pf->vsi[vf->lan_vsi_idx]; 2787 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2788 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2789 vf_id); 2790 ret = -EAGAIN; 2791 goto error_pvid; 2792 } 2793 2794 if (le16_to_cpu(vsi->info.pvid) == vlanprio) 2795 /* duplicate request, so just return success */ 2796 goto error_pvid; 2797 2798 spin_lock_bh(&vsi->mac_filter_hash_lock); 2799 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi); 2800 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2801 2802 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) { 2803 dev_err(&pf->pdev->dev, 2804 "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", 2805 vf_id); 2806 /* Administrator Error - knock the VF offline until he does 2807 * the right thing by reconfiguring his network correctly 2808 * and then reloading the VF driver. 2809 */ 2810 i40e_vc_disable_vf(pf, vf); 2811 /* During reset the VF got a new VSI, so refresh the pointer. */ 2812 vsi = pf->vsi[vf->lan_vsi_idx]; 2813 } 2814 2815 /* Check for condition where there was already a port VLAN ID 2816 * filter set and now it is being deleted by setting it to zero. 2817 * Additionally check for the condition where there was a port 2818 * VLAN but now there is a new and different port VLAN being set. 2819 * Before deleting all the old VLAN filters we must add new ones 2820 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 2821 * MAC addresses deleted. 2822 */ 2823 if ((!(vlan_id || qos) || 2824 vlanprio != le16_to_cpu(vsi->info.pvid)) && 2825 vsi->info.pvid) 2826 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY); 2827 2828 if (vsi->info.pvid) { 2829 /* kill old VLAN */ 2830 i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & 2831 VLAN_VID_MASK)); 2832 } 2833 if (vlan_id || qos) 2834 ret = i40e_vsi_add_pvid(vsi, vlanprio); 2835 else 2836 i40e_vsi_remove_pvid(vsi); 2837 2838 if (vlan_id) { 2839 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 2840 vlan_id, qos, vf_id); 2841 2842 /* add new VLAN filter */ 2843 ret = i40e_vsi_add_vlan(vsi, vlan_id); 2844 if (ret) { 2845 dev_info(&vsi->back->pdev->dev, 2846 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 2847 vsi->back->hw.aq.asq_last_status); 2848 goto error_pvid; 2849 } 2850 /* Kill non-vlan MAC filters - ignore error return since 2851 * there might not be any non-vlan MAC filters. 2852 */ 2853 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY); 2854 } 2855 2856 if (ret) { 2857 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 2858 goto error_pvid; 2859 } 2860 /* The Port VLAN needs to be saved across resets the same as the 2861 * default LAN MAC address. 2862 */ 2863 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 2864 ret = 0; 2865 2866 error_pvid: 2867 return ret; 2868 } 2869 2870 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ 2871 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ 2872 /** 2873 * i40e_ndo_set_vf_bw 2874 * @netdev: network interface device structure 2875 * @vf_id: VF identifier 2876 * @tx_rate: Tx rate 2877 * 2878 * configure VF Tx rate 2879 **/ 2880 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 2881 int max_tx_rate) 2882 { 2883 struct i40e_netdev_priv *np = netdev_priv(netdev); 2884 struct i40e_pf *pf = np->vsi->back; 2885 struct i40e_vsi *vsi; 2886 struct i40e_vf *vf; 2887 int speed = 0; 2888 int ret = 0; 2889 2890 /* validate the request */ 2891 if (vf_id >= pf->num_alloc_vfs) { 2892 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); 2893 ret = -EINVAL; 2894 goto error; 2895 } 2896 2897 if (min_tx_rate) { 2898 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 2899 min_tx_rate, vf_id); 2900 return -EINVAL; 2901 } 2902 2903 vf = &(pf->vf[vf_id]); 2904 vsi = pf->vsi[vf->lan_vsi_idx]; 2905 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2906 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2907 vf_id); 2908 ret = -EAGAIN; 2909 goto error; 2910 } 2911 2912 switch (pf->hw.phy.link_info.link_speed) { 2913 case I40E_LINK_SPEED_40GB: 2914 speed = 40000; 2915 break; 2916 case I40E_LINK_SPEED_20GB: 2917 speed = 20000; 2918 break; 2919 case I40E_LINK_SPEED_10GB: 2920 speed = 10000; 2921 break; 2922 case I40E_LINK_SPEED_1GB: 2923 speed = 1000; 2924 break; 2925 default: 2926 break; 2927 } 2928 2929 if (max_tx_rate > speed) { 2930 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.\n", 2931 max_tx_rate, vf->vf_id); 2932 ret = -EINVAL; 2933 goto error; 2934 } 2935 2936 if ((max_tx_rate < 50) && (max_tx_rate > 0)) { 2937 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); 2938 max_tx_rate = 50; 2939 } 2940 2941 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ 2942 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 2943 max_tx_rate / I40E_BW_CREDIT_DIVISOR, 2944 I40E_MAX_BW_INACTIVE_ACCUM, NULL); 2945 if (ret) { 2946 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", 2947 ret); 2948 ret = -EIO; 2949 goto error; 2950 } 2951 vf->tx_rate = max_tx_rate; 2952 error: 2953 return ret; 2954 } 2955 2956 /** 2957 * i40e_ndo_get_vf_config 2958 * @netdev: network interface device structure 2959 * @vf_id: VF identifier 2960 * @ivi: VF configuration structure 2961 * 2962 * return VF configuration 2963 **/ 2964 int i40e_ndo_get_vf_config(struct net_device *netdev, 2965 int vf_id, struct ifla_vf_info *ivi) 2966 { 2967 struct i40e_netdev_priv *np = netdev_priv(netdev); 2968 struct i40e_vsi *vsi = np->vsi; 2969 struct i40e_pf *pf = vsi->back; 2970 struct i40e_vf *vf; 2971 int ret = 0; 2972 2973 /* validate the request */ 2974 if (vf_id >= pf->num_alloc_vfs) { 2975 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2976 ret = -EINVAL; 2977 goto error_param; 2978 } 2979 2980 vf = &(pf->vf[vf_id]); 2981 /* first vsi is always the LAN vsi */ 2982 vsi = pf->vsi[vf->lan_vsi_idx]; 2983 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2984 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2985 vf_id); 2986 ret = -EAGAIN; 2987 goto error_param; 2988 } 2989 2990 ivi->vf = vf_id; 2991 2992 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 2993 2994 ivi->max_tx_rate = vf->tx_rate; 2995 ivi->min_tx_rate = 0; 2996 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 2997 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 2998 I40E_VLAN_PRIORITY_SHIFT; 2999 if (vf->link_forced == false) 3000 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 3001 else if (vf->link_up == true) 3002 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 3003 else 3004 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 3005 ivi->spoofchk = vf->spoofchk; 3006 ivi->trusted = vf->trusted; 3007 ret = 0; 3008 3009 error_param: 3010 return ret; 3011 } 3012 3013 /** 3014 * i40e_ndo_set_vf_link_state 3015 * @netdev: network interface device structure 3016 * @vf_id: VF identifier 3017 * @link: required link state 3018 * 3019 * Set the link state of a specified VF, regardless of physical link state 3020 **/ 3021 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 3022 { 3023 struct i40e_netdev_priv *np = netdev_priv(netdev); 3024 struct i40e_pf *pf = np->vsi->back; 3025 struct i40e_virtchnl_pf_event pfe; 3026 struct i40e_hw *hw = &pf->hw; 3027 struct i40e_vf *vf; 3028 int abs_vf_id; 3029 int ret = 0; 3030 3031 /* validate the request */ 3032 if (vf_id >= pf->num_alloc_vfs) { 3033 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3034 ret = -EINVAL; 3035 goto error_out; 3036 } 3037 3038 vf = &pf->vf[vf_id]; 3039 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 3040 3041 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; 3042 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; 3043 3044 switch (link) { 3045 case IFLA_VF_LINK_STATE_AUTO: 3046 vf->link_forced = false; 3047 pfe.event_data.link_event.link_status = 3048 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 3049 pfe.event_data.link_event.link_speed = 3050 pf->hw.phy.link_info.link_speed; 3051 break; 3052 case IFLA_VF_LINK_STATE_ENABLE: 3053 vf->link_forced = true; 3054 vf->link_up = true; 3055 pfe.event_data.link_event.link_status = true; 3056 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; 3057 break; 3058 case IFLA_VF_LINK_STATE_DISABLE: 3059 vf->link_forced = true; 3060 vf->link_up = false; 3061 pfe.event_data.link_event.link_status = false; 3062 pfe.event_data.link_event.link_speed = 0; 3063 break; 3064 default: 3065 ret = -EINVAL; 3066 goto error_out; 3067 } 3068 /* Notify the VF of its new link state */ 3069 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 3070 0, (u8 *)&pfe, sizeof(pfe), NULL); 3071 3072 error_out: 3073 return ret; 3074 } 3075 3076 /** 3077 * i40e_ndo_set_vf_spoofchk 3078 * @netdev: network interface device structure 3079 * @vf_id: VF identifier 3080 * @enable: flag to enable or disable feature 3081 * 3082 * Enable or disable VF spoof checking 3083 **/ 3084 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 3085 { 3086 struct i40e_netdev_priv *np = netdev_priv(netdev); 3087 struct i40e_vsi *vsi = np->vsi; 3088 struct i40e_pf *pf = vsi->back; 3089 struct i40e_vsi_context ctxt; 3090 struct i40e_hw *hw = &pf->hw; 3091 struct i40e_vf *vf; 3092 int ret = 0; 3093 3094 /* validate the request */ 3095 if (vf_id >= pf->num_alloc_vfs) { 3096 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3097 ret = -EINVAL; 3098 goto out; 3099 } 3100 3101 vf = &(pf->vf[vf_id]); 3102 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 3103 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3104 vf_id); 3105 ret = -EAGAIN; 3106 goto out; 3107 } 3108 3109 if (enable == vf->spoofchk) 3110 goto out; 3111 3112 vf->spoofchk = enable; 3113 memset(&ctxt, 0, sizeof(ctxt)); 3114 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 3115 ctxt.pf_num = pf->hw.pf_id; 3116 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 3117 if (enable) 3118 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 3119 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 3120 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 3121 if (ret) { 3122 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 3123 ret); 3124 ret = -EIO; 3125 } 3126 out: 3127 return ret; 3128 } 3129 3130 /** 3131 * i40e_ndo_set_vf_trust 3132 * @netdev: network interface device structure of the pf 3133 * @vf_id: VF identifier 3134 * @setting: trust setting 3135 * 3136 * Enable or disable VF trust setting 3137 **/ 3138 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 3139 { 3140 struct i40e_netdev_priv *np = netdev_priv(netdev); 3141 struct i40e_pf *pf = np->vsi->back; 3142 struct i40e_vf *vf; 3143 int ret = 0; 3144 3145 /* validate the request */ 3146 if (vf_id >= pf->num_alloc_vfs) { 3147 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3148 return -EINVAL; 3149 } 3150 3151 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3152 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 3153 return -EINVAL; 3154 } 3155 3156 vf = &pf->vf[vf_id]; 3157 3158 if (!vf) 3159 return -EINVAL; 3160 if (setting == vf->trusted) 3161 goto out; 3162 3163 vf->trusted = setting; 3164 i40e_vc_notify_vf_reset(vf); 3165 i40e_reset_vf(vf, false); 3166 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 3167 vf_id, setting ? "" : "un"); 3168 out: 3169 return ret; 3170 } 3171