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 u8 broadcast[ETH_ALEN]; 678 679 vf->lan_vsi_idx = vsi->idx; 680 vf->lan_vsi_id = vsi->id; 681 /* If the port VLAN has been configured and then the 682 * VF driver was removed then the VSI port VLAN 683 * configuration was destroyed. Check if there is 684 * a port VLAN and restore the VSI configuration if 685 * needed. 686 */ 687 if (vf->port_vlan_id) 688 i40e_vsi_add_pvid(vsi, vf->port_vlan_id); 689 690 spin_lock_bh(&vsi->mac_filter_hash_lock); 691 if (is_valid_ether_addr(vf->default_lan_addr.addr)) { 692 f = i40e_add_mac_filter(vsi, 693 vf->default_lan_addr.addr); 694 if (!f) 695 dev_info(&pf->pdev->dev, 696 "Could not add MAC filter %pM for VF %d\n", 697 vf->default_lan_addr.addr, vf->vf_id); 698 } 699 eth_broadcast_addr(broadcast); 700 f = i40e_add_mac_filter(vsi, broadcast); 701 if (!f) 702 dev_info(&pf->pdev->dev, 703 "Could not allocate VF broadcast filter\n"); 704 spin_unlock_bh(&vsi->mac_filter_hash_lock); 705 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), 706 (u32)hena); 707 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), 708 (u32)(hena >> 32)); 709 } 710 711 /* program mac filter */ 712 ret = i40e_sync_vsi_filters(vsi); 713 if (ret) 714 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 715 716 /* Set VF bandwidth if specified */ 717 if (vf->tx_rate) { 718 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 719 vf->tx_rate / 50, 0, NULL); 720 if (ret) 721 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", 722 vf->vf_id, ret); 723 } 724 725 error_alloc_vsi_res: 726 return ret; 727 } 728 729 /** 730 * i40e_enable_vf_mappings 731 * @vf: pointer to the VF info 732 * 733 * enable VF mappings 734 **/ 735 static void i40e_enable_vf_mappings(struct i40e_vf *vf) 736 { 737 struct i40e_pf *pf = vf->pf; 738 struct i40e_hw *hw = &pf->hw; 739 u32 reg, total_queue_pairs = 0; 740 int j; 741 742 /* Tell the hardware we're using noncontiguous mapping. HW requires 743 * that VF queues be mapped using this method, even when they are 744 * contiguous in real life 745 */ 746 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), 747 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); 748 749 /* enable VF vplan_qtable mappings */ 750 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; 751 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); 752 753 /* map PF queues to VF queues */ 754 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) { 755 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j); 756 757 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); 758 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg); 759 total_queue_pairs++; 760 } 761 762 /* map PF queues to VSI */ 763 for (j = 0; j < 7; j++) { 764 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) { 765 reg = 0x07FF07FF; /* unused */ 766 } else { 767 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 768 j * 2); 769 reg = qid; 770 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, 771 (j * 2) + 1); 772 reg |= qid << 16; 773 } 774 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), 775 reg); 776 } 777 778 i40e_flush(hw); 779 } 780 781 /** 782 * i40e_disable_vf_mappings 783 * @vf: pointer to the VF info 784 * 785 * disable VF mappings 786 **/ 787 static void i40e_disable_vf_mappings(struct i40e_vf *vf) 788 { 789 struct i40e_pf *pf = vf->pf; 790 struct i40e_hw *hw = &pf->hw; 791 int i; 792 793 /* disable qp mappings */ 794 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); 795 for (i = 0; i < I40E_MAX_VSI_QP; i++) 796 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), 797 I40E_QUEUE_END_OF_LIST); 798 i40e_flush(hw); 799 } 800 801 /** 802 * i40e_free_vf_res 803 * @vf: pointer to the VF info 804 * 805 * free VF resources 806 **/ 807 static void i40e_free_vf_res(struct i40e_vf *vf) 808 { 809 struct i40e_pf *pf = vf->pf; 810 struct i40e_hw *hw = &pf->hw; 811 u32 reg_idx, reg; 812 int i, msix_vf; 813 814 /* free vsi & disconnect it from the parent uplink */ 815 if (vf->lan_vsi_idx) { 816 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); 817 vf->lan_vsi_idx = 0; 818 vf->lan_vsi_id = 0; 819 vf->num_mac = 0; 820 } 821 msix_vf = pf->hw.func_caps.num_msix_vectors_vf; 822 823 /* disable interrupts so the VF starts in a known state */ 824 for (i = 0; i < msix_vf; i++) { 825 /* format is same for both registers */ 826 if (0 == i) 827 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); 828 else 829 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * 830 (vf->vf_id)) 831 + (i - 1)); 832 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); 833 i40e_flush(hw); 834 } 835 836 /* clear the irq settings */ 837 for (i = 0; i < msix_vf; i++) { 838 /* format is same for both registers */ 839 if (0 == i) 840 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); 841 else 842 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * 843 (vf->vf_id)) 844 + (i - 1)); 845 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | 846 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); 847 wr32(hw, reg_idx, reg); 848 i40e_flush(hw); 849 } 850 /* reset some of the state varibles keeping 851 * track of the resources 852 */ 853 vf->num_queue_pairs = 0; 854 vf->vf_states = 0; 855 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states); 856 } 857 858 /** 859 * i40e_alloc_vf_res 860 * @vf: pointer to the VF info 861 * 862 * allocate VF resources 863 **/ 864 static int i40e_alloc_vf_res(struct i40e_vf *vf) 865 { 866 struct i40e_pf *pf = vf->pf; 867 int total_queue_pairs = 0; 868 int ret; 869 870 /* allocate hw vsi context & associated resources */ 871 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV); 872 if (ret) 873 goto error_alloc; 874 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; 875 876 if (vf->trusted) 877 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 878 else 879 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); 880 881 /* store the total qps number for the runtime 882 * VF req validation 883 */ 884 vf->num_queue_pairs = total_queue_pairs; 885 886 /* VF is now completely initialized */ 887 set_bit(I40E_VF_STAT_INIT, &vf->vf_states); 888 889 error_alloc: 890 if (ret) 891 i40e_free_vf_res(vf); 892 893 return ret; 894 } 895 896 #define VF_DEVICE_STATUS 0xAA 897 #define VF_TRANS_PENDING_MASK 0x20 898 /** 899 * i40e_quiesce_vf_pci 900 * @vf: pointer to the VF structure 901 * 902 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO 903 * if the transactions never clear. 904 **/ 905 static int i40e_quiesce_vf_pci(struct i40e_vf *vf) 906 { 907 struct i40e_pf *pf = vf->pf; 908 struct i40e_hw *hw = &pf->hw; 909 int vf_abs_id, i; 910 u32 reg; 911 912 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; 913 914 wr32(hw, I40E_PF_PCI_CIAA, 915 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); 916 for (i = 0; i < 100; i++) { 917 reg = rd32(hw, I40E_PF_PCI_CIAD); 918 if ((reg & VF_TRANS_PENDING_MASK) == 0) 919 return 0; 920 udelay(1); 921 } 922 return -EIO; 923 } 924 925 /** 926 * i40e_reset_vf 927 * @vf: pointer to the VF structure 928 * @flr: VFLR was issued or not 929 * 930 * reset the VF 931 **/ 932 void i40e_reset_vf(struct i40e_vf *vf, bool flr) 933 { 934 struct i40e_pf *pf = vf->pf; 935 struct i40e_hw *hw = &pf->hw; 936 u32 reg, reg_idx, bit_idx; 937 bool rsd = false; 938 int i; 939 940 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 941 return; 942 943 /* warn the VF */ 944 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 945 946 /* In the case of a VFLR, the HW has already reset the VF and we 947 * just need to clean up, so don't hit the VFRTRIG register. 948 */ 949 if (!flr) { 950 /* reset VF using VPGEN_VFRTRIG reg */ 951 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 952 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; 953 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 954 i40e_flush(hw); 955 } 956 /* clear the VFLR bit in GLGEN_VFLRSTAT */ 957 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; 958 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; 959 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 960 i40e_flush(hw); 961 962 if (i40e_quiesce_vf_pci(vf)) 963 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", 964 vf->vf_id); 965 966 /* poll VPGEN_VFRSTAT reg to make sure 967 * that reset is complete 968 */ 969 for (i = 0; i < 10; i++) { 970 /* VF reset requires driver to first reset the VF and then 971 * poll the status register to make sure that the reset 972 * completed successfully. Due to internal HW FIFO flushes, 973 * we must wait 10ms before the register will be valid. 974 */ 975 usleep_range(10000, 20000); 976 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); 977 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { 978 rsd = true; 979 break; 980 } 981 } 982 983 if (flr) 984 usleep_range(10000, 20000); 985 986 if (!rsd) 987 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", 988 vf->vf_id); 989 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED); 990 /* clear the reset bit in the VPGEN_VFRTRIG reg */ 991 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); 992 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; 993 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); 994 995 /* On initial reset, we won't have any queues */ 996 if (vf->lan_vsi_idx == 0) 997 goto complete_reset; 998 999 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1000 complete_reset: 1001 /* reallocate VF resources to reset the VSI state */ 1002 i40e_free_vf_res(vf); 1003 if (!i40e_alloc_vf_res(vf)) { 1004 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1005 i40e_enable_vf_mappings(vf); 1006 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 1007 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 1008 /* Do not notify the client during VF init */ 1009 if (vf->pf->num_alloc_vfs) 1010 i40e_notify_client_of_vf_reset(pf, abs_vf_id); 1011 vf->num_vlan = 0; 1012 } 1013 /* tell the VF the reset is done */ 1014 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE); 1015 1016 i40e_flush(hw); 1017 clear_bit(__I40E_VF_DISABLE, &pf->state); 1018 } 1019 1020 /** 1021 * i40e_free_vfs 1022 * @pf: pointer to the PF structure 1023 * 1024 * free VF resources 1025 **/ 1026 void i40e_free_vfs(struct i40e_pf *pf) 1027 { 1028 struct i40e_hw *hw = &pf->hw; 1029 u32 reg_idx, bit_idx; 1030 int i, tmp, vf_id; 1031 1032 if (!pf->vf) 1033 return; 1034 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state)) 1035 usleep_range(1000, 2000); 1036 1037 i40e_notify_client_of_vf_enable(pf, 0); 1038 for (i = 0; i < pf->num_alloc_vfs; i++) 1039 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1040 i40e_vsi_stop_rings(pf->vsi[pf->vf[i].lan_vsi_idx]); 1041 1042 /* Disable IOV before freeing resources. This lets any VF drivers 1043 * running in the host get themselves cleaned up before we yank 1044 * the carpet out from underneath their feet. 1045 */ 1046 if (!pci_vfs_assigned(pf->pdev)) 1047 pci_disable_sriov(pf->pdev); 1048 else 1049 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); 1050 1051 msleep(20); /* let any messages in transit get finished up */ 1052 1053 /* free up VF resources */ 1054 tmp = pf->num_alloc_vfs; 1055 pf->num_alloc_vfs = 0; 1056 for (i = 0; i < tmp; i++) { 1057 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states)) 1058 i40e_free_vf_res(&pf->vf[i]); 1059 /* disable qp mappings */ 1060 i40e_disable_vf_mappings(&pf->vf[i]); 1061 } 1062 1063 kfree(pf->vf); 1064 pf->vf = NULL; 1065 1066 /* This check is for when the driver is unloaded while VFs are 1067 * assigned. Setting the number of VFs to 0 through sysfs is caught 1068 * before this function ever gets called. 1069 */ 1070 if (!pci_vfs_assigned(pf->pdev)) { 1071 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to 1072 * work correctly when SR-IOV gets re-enabled. 1073 */ 1074 for (vf_id = 0; vf_id < tmp; vf_id++) { 1075 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 1076 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 1077 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); 1078 } 1079 } 1080 clear_bit(__I40E_VF_DISABLE, &pf->state); 1081 } 1082 1083 #ifdef CONFIG_PCI_IOV 1084 /** 1085 * i40e_alloc_vfs 1086 * @pf: pointer to the PF structure 1087 * @num_alloc_vfs: number of VFs to allocate 1088 * 1089 * allocate VF resources 1090 **/ 1091 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) 1092 { 1093 struct i40e_vf *vfs; 1094 int i, ret = 0; 1095 1096 /* Disable interrupt 0 so we don't try to handle the VFLR. */ 1097 i40e_irq_dynamic_disable_icr0(pf); 1098 1099 /* Check to see if we're just allocating resources for extant VFs */ 1100 if (pci_num_vf(pf->pdev) != num_alloc_vfs) { 1101 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); 1102 if (ret) { 1103 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1104 pf->num_alloc_vfs = 0; 1105 goto err_iov; 1106 } 1107 } 1108 /* allocate memory */ 1109 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); 1110 if (!vfs) { 1111 ret = -ENOMEM; 1112 goto err_alloc; 1113 } 1114 pf->vf = vfs; 1115 1116 /* apply default profile */ 1117 for (i = 0; i < num_alloc_vfs; i++) { 1118 vfs[i].pf = pf; 1119 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; 1120 vfs[i].vf_id = i; 1121 1122 /* assign default capabilities */ 1123 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); 1124 vfs[i].spoofchk = true; 1125 /* VF resources get allocated during reset */ 1126 i40e_reset_vf(&vfs[i], false); 1127 1128 } 1129 pf->num_alloc_vfs = num_alloc_vfs; 1130 1131 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); 1132 1133 err_alloc: 1134 if (ret) 1135 i40e_free_vfs(pf); 1136 err_iov: 1137 /* Re-enable interrupt 0. */ 1138 i40e_irq_dynamic_enable_icr0(pf, false); 1139 return ret; 1140 } 1141 1142 #endif 1143 /** 1144 * i40e_pci_sriov_enable 1145 * @pdev: pointer to a pci_dev structure 1146 * @num_vfs: number of VFs to allocate 1147 * 1148 * Enable or change the number of VFs 1149 **/ 1150 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) 1151 { 1152 #ifdef CONFIG_PCI_IOV 1153 struct i40e_pf *pf = pci_get_drvdata(pdev); 1154 int pre_existing_vfs = pci_num_vf(pdev); 1155 int err = 0; 1156 1157 if (test_bit(__I40E_TESTING, &pf->state)) { 1158 dev_warn(&pdev->dev, 1159 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); 1160 err = -EPERM; 1161 goto err_out; 1162 } 1163 1164 if (pre_existing_vfs && pre_existing_vfs != num_vfs) 1165 i40e_free_vfs(pf); 1166 else if (pre_existing_vfs && pre_existing_vfs == num_vfs) 1167 goto out; 1168 1169 if (num_vfs > pf->num_req_vfs) { 1170 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", 1171 num_vfs, pf->num_req_vfs); 1172 err = -EPERM; 1173 goto err_out; 1174 } 1175 1176 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); 1177 err = i40e_alloc_vfs(pf, num_vfs); 1178 if (err) { 1179 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); 1180 goto err_out; 1181 } 1182 1183 out: 1184 return num_vfs; 1185 1186 err_out: 1187 return err; 1188 #endif 1189 return 0; 1190 } 1191 1192 /** 1193 * i40e_pci_sriov_configure 1194 * @pdev: pointer to a pci_dev structure 1195 * @num_vfs: number of VFs to allocate 1196 * 1197 * Enable or change the number of VFs. Called when the user updates the number 1198 * of VFs in sysfs. 1199 **/ 1200 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) 1201 { 1202 struct i40e_pf *pf = pci_get_drvdata(pdev); 1203 1204 if (num_vfs) { 1205 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { 1206 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; 1207 i40e_do_reset_safe(pf, 1208 BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1209 } 1210 return i40e_pci_sriov_enable(pdev, num_vfs); 1211 } 1212 1213 if (!pci_vfs_assigned(pf->pdev)) { 1214 i40e_free_vfs(pf); 1215 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; 1216 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED)); 1217 } else { 1218 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); 1219 return -EINVAL; 1220 } 1221 return 0; 1222 } 1223 1224 /***********************virtual channel routines******************/ 1225 1226 /** 1227 * i40e_vc_send_msg_to_vf 1228 * @vf: pointer to the VF info 1229 * @v_opcode: virtual channel opcode 1230 * @v_retval: virtual channel return value 1231 * @msg: pointer to the msg buffer 1232 * @msglen: msg length 1233 * 1234 * send msg to VF 1235 **/ 1236 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, 1237 u32 v_retval, u8 *msg, u16 msglen) 1238 { 1239 struct i40e_pf *pf; 1240 struct i40e_hw *hw; 1241 int abs_vf_id; 1242 i40e_status aq_ret; 1243 1244 /* validate the request */ 1245 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) 1246 return -EINVAL; 1247 1248 pf = vf->pf; 1249 hw = &pf->hw; 1250 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 1251 1252 /* single place to detect unsuccessful return values */ 1253 if (v_retval) { 1254 vf->num_invalid_msgs++; 1255 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", 1256 vf->vf_id, v_opcode, v_retval); 1257 if (vf->num_invalid_msgs > 1258 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { 1259 dev_err(&pf->pdev->dev, 1260 "Number of invalid messages exceeded for VF %d\n", 1261 vf->vf_id); 1262 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); 1263 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states); 1264 } 1265 } else { 1266 vf->num_valid_msgs++; 1267 /* reset the invalid counter, if a valid message is received. */ 1268 vf->num_invalid_msgs = 0; 1269 } 1270 1271 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, 1272 msg, msglen, NULL); 1273 if (aq_ret) { 1274 dev_info(&pf->pdev->dev, 1275 "Unable to send the message to VF %d aq_err %d\n", 1276 vf->vf_id, pf->hw.aq.asq_last_status); 1277 return -EIO; 1278 } 1279 1280 return 0; 1281 } 1282 1283 /** 1284 * i40e_vc_send_resp_to_vf 1285 * @vf: pointer to the VF info 1286 * @opcode: operation code 1287 * @retval: return value 1288 * 1289 * send resp msg to VF 1290 **/ 1291 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, 1292 enum i40e_virtchnl_ops opcode, 1293 i40e_status retval) 1294 { 1295 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); 1296 } 1297 1298 /** 1299 * i40e_vc_get_version_msg 1300 * @vf: pointer to the VF info 1301 * 1302 * called from the VF to request the API version used by the PF 1303 **/ 1304 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) 1305 { 1306 struct i40e_virtchnl_version_info info = { 1307 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR 1308 }; 1309 1310 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg; 1311 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ 1312 if (VF_IS_V10(vf)) 1313 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; 1314 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, 1315 I40E_SUCCESS, (u8 *)&info, 1316 sizeof(struct 1317 i40e_virtchnl_version_info)); 1318 } 1319 1320 /** 1321 * i40e_vc_get_vf_resources_msg 1322 * @vf: pointer to the VF info 1323 * @msg: pointer to the msg buffer 1324 * @msglen: msg length 1325 * 1326 * called from the VF to request its resources 1327 **/ 1328 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) 1329 { 1330 struct i40e_virtchnl_vf_resource *vfres = NULL; 1331 struct i40e_pf *pf = vf->pf; 1332 i40e_status aq_ret = 0; 1333 struct i40e_vsi *vsi; 1334 int num_vsis = 1; 1335 int len = 0; 1336 int ret; 1337 1338 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 1339 aq_ret = I40E_ERR_PARAM; 1340 goto err; 1341 } 1342 1343 len = (sizeof(struct i40e_virtchnl_vf_resource) + 1344 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis); 1345 1346 vfres = kzalloc(len, GFP_KERNEL); 1347 if (!vfres) { 1348 aq_ret = I40E_ERR_NO_MEMORY; 1349 len = 0; 1350 goto err; 1351 } 1352 if (VF_IS_V11(vf)) 1353 vf->driver_caps = *(u32 *)msg; 1354 else 1355 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 | 1356 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG | 1357 I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1358 1359 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2; 1360 vsi = pf->vsi[vf->lan_vsi_idx]; 1361 if (!vsi->info.pvid) 1362 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN; 1363 1364 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) && 1365 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) { 1366 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP; 1367 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states); 1368 } 1369 1370 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) { 1371 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF; 1372 } else { 1373 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) && 1374 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)) 1375 vfres->vf_offload_flags |= 1376 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ; 1377 else 1378 vfres->vf_offload_flags |= 1379 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG; 1380 } 1381 1382 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 1383 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) 1384 vfres->vf_offload_flags |= 1385 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; 1386 } 1387 1388 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) { 1389 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 1390 dev_err(&pf->pdev->dev, 1391 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", 1392 vf->vf_id); 1393 ret = I40E_ERR_PARAM; 1394 goto err; 1395 } 1396 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING; 1397 } 1398 1399 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) { 1400 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) 1401 vfres->vf_offload_flags |= 1402 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; 1403 } 1404 1405 vfres->num_vsis = num_vsis; 1406 vfres->num_queue_pairs = vf->num_queue_pairs; 1407 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; 1408 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; 1409 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; 1410 1411 if (vf->lan_vsi_idx) { 1412 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; 1413 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV; 1414 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; 1415 /* VFs only use TC 0 */ 1416 vfres->vsi_res[0].qset_handle 1417 = le16_to_cpu(vsi->info.qs_handle[0]); 1418 ether_addr_copy(vfres->vsi_res[0].default_mac_addr, 1419 vf->default_lan_addr.addr); 1420 } 1421 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states); 1422 1423 err: 1424 /* send the response back to the VF */ 1425 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES, 1426 aq_ret, (u8 *)vfres, len); 1427 1428 kfree(vfres); 1429 return ret; 1430 } 1431 1432 /** 1433 * i40e_vc_reset_vf_msg 1434 * @vf: pointer to the VF info 1435 * @msg: pointer to the msg buffer 1436 * @msglen: msg length 1437 * 1438 * called from the VF to reset itself, 1439 * unlike other virtchnl messages, PF driver 1440 * doesn't send the response back to the VF 1441 **/ 1442 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) 1443 { 1444 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) 1445 i40e_reset_vf(vf, false); 1446 } 1447 1448 /** 1449 * i40e_getnum_vf_vsi_vlan_filters 1450 * @vsi: pointer to the vsi 1451 * 1452 * called to get the number of VLANs offloaded on this VF 1453 **/ 1454 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) 1455 { 1456 struct i40e_mac_filter *f; 1457 int num_vlans = 0, bkt; 1458 1459 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1460 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) 1461 num_vlans++; 1462 } 1463 1464 return num_vlans; 1465 } 1466 1467 /** 1468 * i40e_vc_config_promiscuous_mode_msg 1469 * @vf: pointer to the VF info 1470 * @msg: pointer to the msg buffer 1471 * @msglen: msg length 1472 * 1473 * called from the VF to configure the promiscuous mode of 1474 * VF vsis 1475 **/ 1476 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, 1477 u8 *msg, u16 msglen) 1478 { 1479 struct i40e_virtchnl_promisc_info *info = 1480 (struct i40e_virtchnl_promisc_info *)msg; 1481 struct i40e_pf *pf = vf->pf; 1482 struct i40e_hw *hw = &pf->hw; 1483 struct i40e_mac_filter *f; 1484 i40e_status aq_ret = 0; 1485 bool allmulti = false; 1486 struct i40e_vsi *vsi; 1487 bool alluni = false; 1488 int aq_err = 0; 1489 int bkt; 1490 1491 vsi = i40e_find_vsi_from_id(pf, info->vsi_id); 1492 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1493 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) || 1494 !vsi) { 1495 aq_ret = I40E_ERR_PARAM; 1496 goto error_param; 1497 } 1498 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 1499 dev_err(&pf->pdev->dev, 1500 "Unprivileged VF %d is attempting to configure promiscuous mode\n", 1501 vf->vf_id); 1502 /* Lie to the VF on purpose. */ 1503 aq_ret = 0; 1504 goto error_param; 1505 } 1506 /* Multicast promiscuous handling*/ 1507 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC) 1508 allmulti = true; 1509 1510 if (vf->port_vlan_id) { 1511 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid, 1512 allmulti, 1513 vf->port_vlan_id, 1514 NULL); 1515 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1516 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1517 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) 1518 continue; 1519 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, 1520 vsi->seid, 1521 allmulti, 1522 f->vlan, 1523 NULL); 1524 aq_err = pf->hw.aq.asq_last_status; 1525 if (aq_ret) { 1526 dev_err(&pf->pdev->dev, 1527 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n", 1528 f->vlan, 1529 i40e_stat_str(&pf->hw, aq_ret), 1530 i40e_aq_str(&pf->hw, aq_err)); 1531 break; 1532 } 1533 } 1534 } else { 1535 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, 1536 allmulti, NULL); 1537 aq_err = pf->hw.aq.asq_last_status; 1538 if (aq_ret) { 1539 dev_err(&pf->pdev->dev, 1540 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", 1541 vf->vf_id, 1542 i40e_stat_str(&pf->hw, aq_ret), 1543 i40e_aq_str(&pf->hw, aq_err)); 1544 goto error_param; 1545 } 1546 } 1547 1548 if (!aq_ret) { 1549 dev_info(&pf->pdev->dev, 1550 "VF %d successfully set multicast promiscuous mode\n", 1551 vf->vf_id); 1552 if (allmulti) 1553 set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); 1554 else 1555 clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states); 1556 } 1557 1558 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC) 1559 alluni = true; 1560 if (vf->port_vlan_id) { 1561 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid, 1562 alluni, 1563 vf->port_vlan_id, 1564 NULL); 1565 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { 1566 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { 1567 aq_ret = 0; 1568 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) { 1569 aq_ret = 1570 i40e_aq_set_vsi_uc_promisc_on_vlan(hw, 1571 vsi->seid, 1572 alluni, 1573 f->vlan, 1574 NULL); 1575 aq_err = pf->hw.aq.asq_last_status; 1576 } 1577 if (aq_ret) 1578 dev_err(&pf->pdev->dev, 1579 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n", 1580 f->vlan, 1581 i40e_stat_str(&pf->hw, aq_ret), 1582 i40e_aq_str(&pf->hw, aq_err)); 1583 } 1584 } else { 1585 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, 1586 allmulti, NULL, 1587 true); 1588 aq_err = pf->hw.aq.asq_last_status; 1589 if (aq_ret) { 1590 dev_err(&pf->pdev->dev, 1591 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n", 1592 vf->vf_id, info->flags, 1593 i40e_stat_str(&pf->hw, aq_ret), 1594 i40e_aq_str(&pf->hw, aq_err)); 1595 goto error_param; 1596 } 1597 } 1598 1599 if (!aq_ret) { 1600 dev_info(&pf->pdev->dev, 1601 "VF %d successfully set unicast promiscuous mode\n", 1602 vf->vf_id); 1603 if (alluni) 1604 set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); 1605 else 1606 clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states); 1607 } 1608 1609 error_param: 1610 /* send the response to the VF */ 1611 return i40e_vc_send_resp_to_vf(vf, 1612 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, 1613 aq_ret); 1614 } 1615 1616 /** 1617 * i40e_vc_config_queues_msg 1618 * @vf: pointer to the VF info 1619 * @msg: pointer to the msg buffer 1620 * @msglen: msg length 1621 * 1622 * called from the VF to configure the rx/tx 1623 * queues 1624 **/ 1625 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1626 { 1627 struct i40e_virtchnl_vsi_queue_config_info *qci = 1628 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 1629 struct i40e_virtchnl_queue_pair_info *qpi; 1630 struct i40e_pf *pf = vf->pf; 1631 u16 vsi_id, vsi_queue_id; 1632 i40e_status aq_ret = 0; 1633 int i; 1634 1635 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1636 aq_ret = I40E_ERR_PARAM; 1637 goto error_param; 1638 } 1639 1640 vsi_id = qci->vsi_id; 1641 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1642 aq_ret = I40E_ERR_PARAM; 1643 goto error_param; 1644 } 1645 for (i = 0; i < qci->num_queue_pairs; i++) { 1646 qpi = &qci->qpair[i]; 1647 vsi_queue_id = qpi->txq.queue_id; 1648 if ((qpi->txq.vsi_id != vsi_id) || 1649 (qpi->rxq.vsi_id != vsi_id) || 1650 (qpi->rxq.queue_id != vsi_queue_id) || 1651 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) { 1652 aq_ret = I40E_ERR_PARAM; 1653 goto error_param; 1654 } 1655 1656 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, 1657 &qpi->rxq) || 1658 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, 1659 &qpi->txq)) { 1660 aq_ret = I40E_ERR_PARAM; 1661 goto error_param; 1662 } 1663 } 1664 /* set vsi num_queue_pairs in use to num configured by VF */ 1665 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs; 1666 1667 error_param: 1668 /* send the response to the VF */ 1669 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES, 1670 aq_ret); 1671 } 1672 1673 /** 1674 * i40e_vc_config_irq_map_msg 1675 * @vf: pointer to the VF info 1676 * @msg: pointer to the msg buffer 1677 * @msglen: msg length 1678 * 1679 * called from the VF to configure the irq to 1680 * queue map 1681 **/ 1682 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1683 { 1684 struct i40e_virtchnl_irq_map_info *irqmap_info = 1685 (struct i40e_virtchnl_irq_map_info *)msg; 1686 struct i40e_virtchnl_vector_map *map; 1687 u16 vsi_id, vsi_queue_id, vector_id; 1688 i40e_status aq_ret = 0; 1689 unsigned long tempmap; 1690 int i; 1691 1692 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1693 aq_ret = I40E_ERR_PARAM; 1694 goto error_param; 1695 } 1696 1697 for (i = 0; i < irqmap_info->num_vectors; i++) { 1698 map = &irqmap_info->vecmap[i]; 1699 1700 vector_id = map->vector_id; 1701 vsi_id = map->vsi_id; 1702 /* validate msg params */ 1703 if (!i40e_vc_isvalid_vector_id(vf, vector_id) || 1704 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1705 aq_ret = I40E_ERR_PARAM; 1706 goto error_param; 1707 } 1708 1709 /* lookout for the invalid queue index */ 1710 tempmap = map->rxq_map; 1711 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1712 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1713 vsi_queue_id)) { 1714 aq_ret = I40E_ERR_PARAM; 1715 goto error_param; 1716 } 1717 } 1718 1719 tempmap = map->txq_map; 1720 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { 1721 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, 1722 vsi_queue_id)) { 1723 aq_ret = I40E_ERR_PARAM; 1724 goto error_param; 1725 } 1726 } 1727 1728 i40e_config_irq_link_list(vf, vsi_id, map); 1729 } 1730 error_param: 1731 /* send the response to the VF */ 1732 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP, 1733 aq_ret); 1734 } 1735 1736 /** 1737 * i40e_vc_enable_queues_msg 1738 * @vf: pointer to the VF info 1739 * @msg: pointer to the msg buffer 1740 * @msglen: msg length 1741 * 1742 * called from the VF to enable all or specific queue(s) 1743 **/ 1744 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1745 { 1746 struct i40e_virtchnl_queue_select *vqs = 1747 (struct i40e_virtchnl_queue_select *)msg; 1748 struct i40e_pf *pf = vf->pf; 1749 u16 vsi_id = vqs->vsi_id; 1750 i40e_status aq_ret = 0; 1751 1752 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1753 aq_ret = I40E_ERR_PARAM; 1754 goto error_param; 1755 } 1756 1757 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1758 aq_ret = I40E_ERR_PARAM; 1759 goto error_param; 1760 } 1761 1762 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1763 aq_ret = I40E_ERR_PARAM; 1764 goto error_param; 1765 } 1766 1767 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx])) 1768 aq_ret = I40E_ERR_TIMEOUT; 1769 error_param: 1770 /* send the response to the VF */ 1771 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES, 1772 aq_ret); 1773 } 1774 1775 /** 1776 * i40e_vc_disable_queues_msg 1777 * @vf: pointer to the VF info 1778 * @msg: pointer to the msg buffer 1779 * @msglen: msg length 1780 * 1781 * called from the VF to disable all or specific 1782 * queue(s) 1783 **/ 1784 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1785 { 1786 struct i40e_virtchnl_queue_select *vqs = 1787 (struct i40e_virtchnl_queue_select *)msg; 1788 struct i40e_pf *pf = vf->pf; 1789 i40e_status aq_ret = 0; 1790 1791 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1792 aq_ret = I40E_ERR_PARAM; 1793 goto error_param; 1794 } 1795 1796 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1797 aq_ret = I40E_ERR_PARAM; 1798 goto error_param; 1799 } 1800 1801 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) { 1802 aq_ret = I40E_ERR_PARAM; 1803 goto error_param; 1804 } 1805 1806 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); 1807 1808 error_param: 1809 /* send the response to the VF */ 1810 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES, 1811 aq_ret); 1812 } 1813 1814 /** 1815 * i40e_vc_get_stats_msg 1816 * @vf: pointer to the VF info 1817 * @msg: pointer to the msg buffer 1818 * @msglen: msg length 1819 * 1820 * called from the VF to get vsi stats 1821 **/ 1822 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1823 { 1824 struct i40e_virtchnl_queue_select *vqs = 1825 (struct i40e_virtchnl_queue_select *)msg; 1826 struct i40e_pf *pf = vf->pf; 1827 struct i40e_eth_stats stats; 1828 i40e_status aq_ret = 0; 1829 struct i40e_vsi *vsi; 1830 1831 memset(&stats, 0, sizeof(struct i40e_eth_stats)); 1832 1833 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 1834 aq_ret = I40E_ERR_PARAM; 1835 goto error_param; 1836 } 1837 1838 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { 1839 aq_ret = I40E_ERR_PARAM; 1840 goto error_param; 1841 } 1842 1843 vsi = pf->vsi[vf->lan_vsi_idx]; 1844 if (!vsi) { 1845 aq_ret = I40E_ERR_PARAM; 1846 goto error_param; 1847 } 1848 i40e_update_eth_stats(vsi); 1849 stats = vsi->eth_stats; 1850 1851 error_param: 1852 /* send the response back to the VF */ 1853 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret, 1854 (u8 *)&stats, sizeof(stats)); 1855 } 1856 1857 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */ 1858 #define I40E_VC_MAX_MAC_ADDR_PER_VF 8 1859 #define I40E_VC_MAX_VLAN_PER_VF 8 1860 1861 /** 1862 * i40e_check_vf_permission 1863 * @vf: pointer to the VF info 1864 * @macaddr: pointer to the MAC Address being checked 1865 * 1866 * Check if the VF has permission to add or delete unicast MAC address 1867 * filters and return error code -EPERM if not. Then check if the 1868 * address filter requested is broadcast or zero and if so return 1869 * an invalid MAC address error code. 1870 **/ 1871 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr) 1872 { 1873 struct i40e_pf *pf = vf->pf; 1874 int ret = 0; 1875 1876 if (is_broadcast_ether_addr(macaddr) || 1877 is_zero_ether_addr(macaddr)) { 1878 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr); 1879 ret = I40E_ERR_INVALID_MAC_ADDR; 1880 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) && 1881 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && 1882 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) { 1883 /* If the host VMM administrator has set the VF MAC address 1884 * administratively via the ndo_set_vf_mac command then deny 1885 * permission to the VF to add or delete unicast MAC addresses. 1886 * Unless the VF is privileged and then it can do whatever. 1887 * The VF may request to set the MAC address filter already 1888 * assigned to it so do not return an error in that case. 1889 */ 1890 dev_err(&pf->pdev->dev, 1891 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n"); 1892 ret = -EPERM; 1893 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) && 1894 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 1895 dev_err(&pf->pdev->dev, 1896 "VF is not trusted, switch the VF to trusted to add more functionality\n"); 1897 ret = -EPERM; 1898 } 1899 return ret; 1900 } 1901 1902 /** 1903 * i40e_vc_add_mac_addr_msg 1904 * @vf: pointer to the VF info 1905 * @msg: pointer to the msg buffer 1906 * @msglen: msg length 1907 * 1908 * add guest mac address filter 1909 **/ 1910 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1911 { 1912 struct i40e_virtchnl_ether_addr_list *al = 1913 (struct i40e_virtchnl_ether_addr_list *)msg; 1914 struct i40e_pf *pf = vf->pf; 1915 struct i40e_vsi *vsi = NULL; 1916 u16 vsi_id = al->vsi_id; 1917 i40e_status ret = 0; 1918 int i; 1919 1920 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1921 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1922 ret = I40E_ERR_PARAM; 1923 goto error_param; 1924 } 1925 1926 for (i = 0; i < al->num_elements; i++) { 1927 ret = i40e_check_vf_permission(vf, al->list[i].addr); 1928 if (ret) 1929 goto error_param; 1930 } 1931 vsi = pf->vsi[vf->lan_vsi_idx]; 1932 1933 /* Lock once, because all function inside for loop accesses VSI's 1934 * MAC filter list which needs to be protected using same lock. 1935 */ 1936 spin_lock_bh(&vsi->mac_filter_hash_lock); 1937 1938 /* add new addresses to the list */ 1939 for (i = 0; i < al->num_elements; i++) { 1940 struct i40e_mac_filter *f; 1941 1942 f = i40e_find_mac(vsi, al->list[i].addr); 1943 if (!f) 1944 f = i40e_add_mac_filter(vsi, al->list[i].addr); 1945 1946 if (!f) { 1947 dev_err(&pf->pdev->dev, 1948 "Unable to add MAC filter %pM for VF %d\n", 1949 al->list[i].addr, vf->vf_id); 1950 ret = I40E_ERR_PARAM; 1951 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1952 goto error_param; 1953 } else { 1954 vf->num_mac++; 1955 } 1956 } 1957 spin_unlock_bh(&vsi->mac_filter_hash_lock); 1958 1959 /* program the updated filter list */ 1960 ret = i40e_sync_vsi_filters(vsi); 1961 if (ret) 1962 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 1963 vf->vf_id, ret); 1964 1965 error_param: 1966 /* send the response to the VF */ 1967 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS, 1968 ret); 1969 } 1970 1971 /** 1972 * i40e_vc_del_mac_addr_msg 1973 * @vf: pointer to the VF info 1974 * @msg: pointer to the msg buffer 1975 * @msglen: msg length 1976 * 1977 * remove guest mac address filter 1978 **/ 1979 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 1980 { 1981 struct i40e_virtchnl_ether_addr_list *al = 1982 (struct i40e_virtchnl_ether_addr_list *)msg; 1983 struct i40e_pf *pf = vf->pf; 1984 struct i40e_vsi *vsi = NULL; 1985 u16 vsi_id = al->vsi_id; 1986 i40e_status ret = 0; 1987 int i; 1988 1989 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 1990 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 1991 ret = I40E_ERR_PARAM; 1992 goto error_param; 1993 } 1994 1995 for (i = 0; i < al->num_elements; i++) { 1996 if (is_broadcast_ether_addr(al->list[i].addr) || 1997 is_zero_ether_addr(al->list[i].addr)) { 1998 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", 1999 al->list[i].addr, vf->vf_id); 2000 ret = I40E_ERR_INVALID_MAC_ADDR; 2001 goto error_param; 2002 } 2003 } 2004 vsi = pf->vsi[vf->lan_vsi_idx]; 2005 2006 spin_lock_bh(&vsi->mac_filter_hash_lock); 2007 /* delete addresses from the list */ 2008 for (i = 0; i < al->num_elements; i++) 2009 if (i40e_del_mac_filter(vsi, al->list[i].addr)) { 2010 ret = I40E_ERR_INVALID_MAC_ADDR; 2011 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2012 goto error_param; 2013 } else { 2014 vf->num_mac--; 2015 } 2016 2017 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2018 2019 /* program the updated filter list */ 2020 ret = i40e_sync_vsi_filters(vsi); 2021 if (ret) 2022 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", 2023 vf->vf_id, ret); 2024 2025 error_param: 2026 /* send the response to the VF */ 2027 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS, 2028 ret); 2029 } 2030 2031 /** 2032 * i40e_vc_add_vlan_msg 2033 * @vf: pointer to the VF info 2034 * @msg: pointer to the msg buffer 2035 * @msglen: msg length 2036 * 2037 * program guest vlan id 2038 **/ 2039 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2040 { 2041 struct i40e_virtchnl_vlan_filter_list *vfl = 2042 (struct i40e_virtchnl_vlan_filter_list *)msg; 2043 struct i40e_pf *pf = vf->pf; 2044 struct i40e_vsi *vsi = NULL; 2045 u16 vsi_id = vfl->vsi_id; 2046 i40e_status aq_ret = 0; 2047 int i; 2048 2049 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && 2050 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { 2051 dev_err(&pf->pdev->dev, 2052 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); 2053 goto error_param; 2054 } 2055 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2056 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2057 aq_ret = I40E_ERR_PARAM; 2058 goto error_param; 2059 } 2060 2061 for (i = 0; i < vfl->num_elements; i++) { 2062 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2063 aq_ret = I40E_ERR_PARAM; 2064 dev_err(&pf->pdev->dev, 2065 "invalid VF VLAN id %d\n", vfl->vlan_id[i]); 2066 goto error_param; 2067 } 2068 } 2069 vsi = pf->vsi[vf->lan_vsi_idx]; 2070 if (vsi->info.pvid) { 2071 aq_ret = I40E_ERR_PARAM; 2072 goto error_param; 2073 } 2074 2075 i40e_vlan_stripping_enable(vsi); 2076 for (i = 0; i < vfl->num_elements; i++) { 2077 /* add new VLAN filter */ 2078 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); 2079 if (!ret) 2080 vf->num_vlan++; 2081 2082 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) 2083 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2084 true, 2085 vfl->vlan_id[i], 2086 NULL); 2087 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) 2088 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2089 true, 2090 vfl->vlan_id[i], 2091 NULL); 2092 2093 if (ret) 2094 dev_err(&pf->pdev->dev, 2095 "Unable to add VLAN filter %d for VF %d, error %d\n", 2096 vfl->vlan_id[i], vf->vf_id, ret); 2097 } 2098 2099 error_param: 2100 /* send the response to the VF */ 2101 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret); 2102 } 2103 2104 /** 2105 * i40e_vc_remove_vlan_msg 2106 * @vf: pointer to the VF info 2107 * @msg: pointer to the msg buffer 2108 * @msglen: msg length 2109 * 2110 * remove programmed guest vlan id 2111 **/ 2112 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2113 { 2114 struct i40e_virtchnl_vlan_filter_list *vfl = 2115 (struct i40e_virtchnl_vlan_filter_list *)msg; 2116 struct i40e_pf *pf = vf->pf; 2117 struct i40e_vsi *vsi = NULL; 2118 u16 vsi_id = vfl->vsi_id; 2119 i40e_status aq_ret = 0; 2120 int i; 2121 2122 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2123 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) { 2124 aq_ret = I40E_ERR_PARAM; 2125 goto error_param; 2126 } 2127 2128 for (i = 0; i < vfl->num_elements; i++) { 2129 if (vfl->vlan_id[i] > I40E_MAX_VLANID) { 2130 aq_ret = I40E_ERR_PARAM; 2131 goto error_param; 2132 } 2133 } 2134 2135 vsi = pf->vsi[vf->lan_vsi_idx]; 2136 if (vsi->info.pvid) { 2137 aq_ret = I40E_ERR_PARAM; 2138 goto error_param; 2139 } 2140 2141 for (i = 0; i < vfl->num_elements; i++) { 2142 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); 2143 vf->num_vlan--; 2144 2145 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states)) 2146 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, 2147 false, 2148 vfl->vlan_id[i], 2149 NULL); 2150 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states)) 2151 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, 2152 false, 2153 vfl->vlan_id[i], 2154 NULL); 2155 } 2156 2157 error_param: 2158 /* send the response to the VF */ 2159 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret); 2160 } 2161 2162 /** 2163 * i40e_vc_iwarp_msg 2164 * @vf: pointer to the VF info 2165 * @msg: pointer to the msg buffer 2166 * @msglen: msg length 2167 * 2168 * called from the VF for the iwarp msgs 2169 **/ 2170 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) 2171 { 2172 struct i40e_pf *pf = vf->pf; 2173 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; 2174 i40e_status aq_ret = 0; 2175 2176 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2177 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 2178 aq_ret = I40E_ERR_PARAM; 2179 goto error_param; 2180 } 2181 2182 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, 2183 msg, msglen); 2184 2185 error_param: 2186 /* send the response to the VF */ 2187 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP, 2188 aq_ret); 2189 } 2190 2191 /** 2192 * i40e_vc_iwarp_qvmap_msg 2193 * @vf: pointer to the VF info 2194 * @msg: pointer to the msg buffer 2195 * @msglen: msg length 2196 * @config: config qvmap or release it 2197 * 2198 * called from the VF for the iwarp msgs 2199 **/ 2200 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen, 2201 bool config) 2202 { 2203 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = 2204 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2205 i40e_status aq_ret = 0; 2206 2207 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2208 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) { 2209 aq_ret = I40E_ERR_PARAM; 2210 goto error_param; 2211 } 2212 2213 if (config) { 2214 if (i40e_config_iwarp_qvlist(vf, qvlist_info)) 2215 aq_ret = I40E_ERR_PARAM; 2216 } else { 2217 i40e_release_iwarp_qvlist(vf); 2218 } 2219 2220 error_param: 2221 /* send the response to the VF */ 2222 return i40e_vc_send_resp_to_vf(vf, 2223 config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : 2224 I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, 2225 aq_ret); 2226 } 2227 2228 /** 2229 * i40e_vc_config_rss_key 2230 * @vf: pointer to the VF info 2231 * @msg: pointer to the msg buffer 2232 * @msglen: msg length 2233 * 2234 * Configure the VF's RSS key 2235 **/ 2236 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen) 2237 { 2238 struct i40e_virtchnl_rss_key *vrk = 2239 (struct i40e_virtchnl_rss_key *)msg; 2240 struct i40e_pf *pf = vf->pf; 2241 struct i40e_vsi *vsi = NULL; 2242 u16 vsi_id = vrk->vsi_id; 2243 i40e_status aq_ret = 0; 2244 2245 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2246 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2247 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { 2248 aq_ret = I40E_ERR_PARAM; 2249 goto err; 2250 } 2251 2252 vsi = pf->vsi[vf->lan_vsi_idx]; 2253 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); 2254 err: 2255 /* send the response to the VF */ 2256 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY, 2257 aq_ret); 2258 } 2259 2260 /** 2261 * i40e_vc_config_rss_lut 2262 * @vf: pointer to the VF info 2263 * @msg: pointer to the msg buffer 2264 * @msglen: msg length 2265 * 2266 * Configure the VF's RSS LUT 2267 **/ 2268 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen) 2269 { 2270 struct i40e_virtchnl_rss_lut *vrl = 2271 (struct i40e_virtchnl_rss_lut *)msg; 2272 struct i40e_pf *pf = vf->pf; 2273 struct i40e_vsi *vsi = NULL; 2274 u16 vsi_id = vrl->vsi_id; 2275 i40e_status aq_ret = 0; 2276 2277 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) || 2278 !i40e_vc_isvalid_vsi_id(vf, vsi_id) || 2279 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { 2280 aq_ret = I40E_ERR_PARAM; 2281 goto err; 2282 } 2283 2284 vsi = pf->vsi[vf->lan_vsi_idx]; 2285 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); 2286 /* send the response to the VF */ 2287 err: 2288 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT, 2289 aq_ret); 2290 } 2291 2292 /** 2293 * i40e_vc_get_rss_hena 2294 * @vf: pointer to the VF info 2295 * @msg: pointer to the msg buffer 2296 * @msglen: msg length 2297 * 2298 * Return the RSS HENA bits allowed by the hardware 2299 **/ 2300 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2301 { 2302 struct i40e_virtchnl_rss_hena *vrh = NULL; 2303 struct i40e_pf *pf = vf->pf; 2304 i40e_status aq_ret = 0; 2305 int len = 0; 2306 2307 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 2308 aq_ret = I40E_ERR_PARAM; 2309 goto err; 2310 } 2311 len = sizeof(struct i40e_virtchnl_rss_hena); 2312 2313 vrh = kzalloc(len, GFP_KERNEL); 2314 if (!vrh) { 2315 aq_ret = I40E_ERR_NO_MEMORY; 2316 len = 0; 2317 goto err; 2318 } 2319 vrh->hena = i40e_pf_get_default_rss_hena(pf); 2320 err: 2321 /* send the response back to the VF */ 2322 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS, 2323 aq_ret, (u8 *)vrh, len); 2324 kfree(vrh); 2325 return aq_ret; 2326 } 2327 2328 /** 2329 * i40e_vc_set_rss_hena 2330 * @vf: pointer to the VF info 2331 * @msg: pointer to the msg buffer 2332 * @msglen: msg length 2333 * 2334 * Set the RSS HENA bits for the VF 2335 **/ 2336 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen) 2337 { 2338 struct i40e_virtchnl_rss_hena *vrh = 2339 (struct i40e_virtchnl_rss_hena *)msg; 2340 struct i40e_pf *pf = vf->pf; 2341 struct i40e_hw *hw = &pf->hw; 2342 i40e_status aq_ret = 0; 2343 2344 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) { 2345 aq_ret = I40E_ERR_PARAM; 2346 goto err; 2347 } 2348 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); 2349 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), 2350 (u32)(vrh->hena >> 32)); 2351 2352 /* send the response to the VF */ 2353 err: 2354 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA, 2355 aq_ret); 2356 } 2357 2358 /** 2359 * i40e_vc_validate_vf_msg 2360 * @vf: pointer to the VF info 2361 * @msg: pointer to the msg buffer 2362 * @msglen: msg length 2363 * @msghndl: msg handle 2364 * 2365 * validate msg 2366 **/ 2367 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode, 2368 u32 v_retval, u8 *msg, u16 msglen) 2369 { 2370 bool err_msg_format = false; 2371 int valid_len = 0; 2372 2373 /* Check if VF is disabled. */ 2374 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states)) 2375 return I40E_ERR_PARAM; 2376 2377 /* Validate message length. */ 2378 switch (v_opcode) { 2379 case I40E_VIRTCHNL_OP_VERSION: 2380 valid_len = sizeof(struct i40e_virtchnl_version_info); 2381 break; 2382 case I40E_VIRTCHNL_OP_RESET_VF: 2383 break; 2384 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2385 if (VF_IS_V11(vf)) 2386 valid_len = sizeof(u32); 2387 break; 2388 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE: 2389 valid_len = sizeof(struct i40e_virtchnl_txq_info); 2390 break; 2391 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE: 2392 valid_len = sizeof(struct i40e_virtchnl_rxq_info); 2393 break; 2394 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2395 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info); 2396 if (msglen >= valid_len) { 2397 struct i40e_virtchnl_vsi_queue_config_info *vqc = 2398 (struct i40e_virtchnl_vsi_queue_config_info *)msg; 2399 valid_len += (vqc->num_queue_pairs * 2400 sizeof(struct 2401 i40e_virtchnl_queue_pair_info)); 2402 if (vqc->num_queue_pairs == 0) 2403 err_msg_format = true; 2404 } 2405 break; 2406 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2407 valid_len = sizeof(struct i40e_virtchnl_irq_map_info); 2408 if (msglen >= valid_len) { 2409 struct i40e_virtchnl_irq_map_info *vimi = 2410 (struct i40e_virtchnl_irq_map_info *)msg; 2411 valid_len += (vimi->num_vectors * 2412 sizeof(struct i40e_virtchnl_vector_map)); 2413 if (vimi->num_vectors == 0) 2414 err_msg_format = true; 2415 } 2416 break; 2417 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2418 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2419 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2420 break; 2421 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2422 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2423 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list); 2424 if (msglen >= valid_len) { 2425 struct i40e_virtchnl_ether_addr_list *veal = 2426 (struct i40e_virtchnl_ether_addr_list *)msg; 2427 valid_len += veal->num_elements * 2428 sizeof(struct i40e_virtchnl_ether_addr); 2429 if (veal->num_elements == 0) 2430 err_msg_format = true; 2431 } 2432 break; 2433 case I40E_VIRTCHNL_OP_ADD_VLAN: 2434 case I40E_VIRTCHNL_OP_DEL_VLAN: 2435 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list); 2436 if (msglen >= valid_len) { 2437 struct i40e_virtchnl_vlan_filter_list *vfl = 2438 (struct i40e_virtchnl_vlan_filter_list *)msg; 2439 valid_len += vfl->num_elements * sizeof(u16); 2440 if (vfl->num_elements == 0) 2441 err_msg_format = true; 2442 } 2443 break; 2444 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2445 valid_len = sizeof(struct i40e_virtchnl_promisc_info); 2446 break; 2447 case I40E_VIRTCHNL_OP_GET_STATS: 2448 valid_len = sizeof(struct i40e_virtchnl_queue_select); 2449 break; 2450 case I40E_VIRTCHNL_OP_IWARP: 2451 /* These messages are opaque to us and will be validated in 2452 * the RDMA client code. We just need to check for nonzero 2453 * length. The firmware will enforce max length restrictions. 2454 */ 2455 if (msglen) 2456 valid_len = msglen; 2457 else 2458 err_msg_format = true; 2459 break; 2460 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2461 valid_len = 0; 2462 break; 2463 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2464 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info); 2465 if (msglen >= valid_len) { 2466 struct i40e_virtchnl_iwarp_qvlist_info *qv = 2467 (struct i40e_virtchnl_iwarp_qvlist_info *)msg; 2468 if (qv->num_vectors == 0) { 2469 err_msg_format = true; 2470 break; 2471 } 2472 valid_len += ((qv->num_vectors - 1) * 2473 sizeof(struct i40e_virtchnl_iwarp_qv_info)); 2474 } 2475 break; 2476 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2477 valid_len = sizeof(struct i40e_virtchnl_rss_key); 2478 if (msglen >= valid_len) { 2479 struct i40e_virtchnl_rss_key *vrk = 2480 (struct i40e_virtchnl_rss_key *)msg; 2481 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) { 2482 err_msg_format = true; 2483 break; 2484 } 2485 valid_len += vrk->key_len - 1; 2486 } 2487 break; 2488 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2489 valid_len = sizeof(struct i40e_virtchnl_rss_lut); 2490 if (msglen >= valid_len) { 2491 struct i40e_virtchnl_rss_lut *vrl = 2492 (struct i40e_virtchnl_rss_lut *)msg; 2493 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) { 2494 err_msg_format = true; 2495 break; 2496 } 2497 valid_len += vrl->lut_entries - 1; 2498 } 2499 break; 2500 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2501 break; 2502 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2503 valid_len = sizeof(struct i40e_virtchnl_rss_hena); 2504 break; 2505 /* These are always errors coming from the VF. */ 2506 case I40E_VIRTCHNL_OP_EVENT: 2507 case I40E_VIRTCHNL_OP_UNKNOWN: 2508 default: 2509 return -EPERM; 2510 } 2511 /* few more checks */ 2512 if ((valid_len != msglen) || (err_msg_format)) { 2513 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); 2514 return -EINVAL; 2515 } else { 2516 return 0; 2517 } 2518 } 2519 2520 /** 2521 * i40e_vc_process_vf_msg 2522 * @pf: pointer to the PF structure 2523 * @vf_id: source VF id 2524 * @msg: pointer to the msg buffer 2525 * @msglen: msg length 2526 * @msghndl: msg handle 2527 * 2528 * called from the common aeq/arq handler to 2529 * process request from VF 2530 **/ 2531 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, 2532 u32 v_retval, u8 *msg, u16 msglen) 2533 { 2534 struct i40e_hw *hw = &pf->hw; 2535 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; 2536 struct i40e_vf *vf; 2537 int ret; 2538 2539 pf->vf_aq_requests++; 2540 if (local_vf_id >= pf->num_alloc_vfs) 2541 return -EINVAL; 2542 vf = &(pf->vf[local_vf_id]); 2543 /* perform basic checks on the msg */ 2544 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen); 2545 2546 if (ret) { 2547 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", 2548 local_vf_id, v_opcode, msglen); 2549 return ret; 2550 } 2551 2552 switch (v_opcode) { 2553 case I40E_VIRTCHNL_OP_VERSION: 2554 ret = i40e_vc_get_version_msg(vf, msg); 2555 break; 2556 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: 2557 ret = i40e_vc_get_vf_resources_msg(vf, msg); 2558 break; 2559 case I40E_VIRTCHNL_OP_RESET_VF: 2560 i40e_vc_reset_vf_msg(vf); 2561 ret = 0; 2562 break; 2563 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: 2564 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen); 2565 break; 2566 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES: 2567 ret = i40e_vc_config_queues_msg(vf, msg, msglen); 2568 break; 2569 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP: 2570 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen); 2571 break; 2572 case I40E_VIRTCHNL_OP_ENABLE_QUEUES: 2573 ret = i40e_vc_enable_queues_msg(vf, msg, msglen); 2574 i40e_vc_notify_vf_link_state(vf); 2575 break; 2576 case I40E_VIRTCHNL_OP_DISABLE_QUEUES: 2577 ret = i40e_vc_disable_queues_msg(vf, msg, msglen); 2578 break; 2579 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS: 2580 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen); 2581 break; 2582 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS: 2583 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen); 2584 break; 2585 case I40E_VIRTCHNL_OP_ADD_VLAN: 2586 ret = i40e_vc_add_vlan_msg(vf, msg, msglen); 2587 break; 2588 case I40E_VIRTCHNL_OP_DEL_VLAN: 2589 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen); 2590 break; 2591 case I40E_VIRTCHNL_OP_GET_STATS: 2592 ret = i40e_vc_get_stats_msg(vf, msg, msglen); 2593 break; 2594 case I40E_VIRTCHNL_OP_IWARP: 2595 ret = i40e_vc_iwarp_msg(vf, msg, msglen); 2596 break; 2597 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: 2598 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true); 2599 break; 2600 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: 2601 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false); 2602 break; 2603 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY: 2604 ret = i40e_vc_config_rss_key(vf, msg, msglen); 2605 break; 2606 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT: 2607 ret = i40e_vc_config_rss_lut(vf, msg, msglen); 2608 break; 2609 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS: 2610 ret = i40e_vc_get_rss_hena(vf, msg, msglen); 2611 break; 2612 case I40E_VIRTCHNL_OP_SET_RSS_HENA: 2613 ret = i40e_vc_set_rss_hena(vf, msg, msglen); 2614 break; 2615 2616 case I40E_VIRTCHNL_OP_UNKNOWN: 2617 default: 2618 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", 2619 v_opcode, local_vf_id); 2620 ret = i40e_vc_send_resp_to_vf(vf, v_opcode, 2621 I40E_ERR_NOT_IMPLEMENTED); 2622 break; 2623 } 2624 2625 return ret; 2626 } 2627 2628 /** 2629 * i40e_vc_process_vflr_event 2630 * @pf: pointer to the PF structure 2631 * 2632 * called from the vlfr irq handler to 2633 * free up VF resources and state variables 2634 **/ 2635 int i40e_vc_process_vflr_event(struct i40e_pf *pf) 2636 { 2637 struct i40e_hw *hw = &pf->hw; 2638 u32 reg, reg_idx, bit_idx; 2639 struct i40e_vf *vf; 2640 int vf_id; 2641 2642 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state)) 2643 return 0; 2644 2645 /* Re-enable the VFLR interrupt cause here, before looking for which 2646 * VF got reset. Otherwise, if another VF gets a reset while the 2647 * first one is being processed, that interrupt will be lost, and 2648 * that VF will be stuck in reset forever. 2649 */ 2650 reg = rd32(hw, I40E_PFINT_ICR0_ENA); 2651 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; 2652 wr32(hw, I40E_PFINT_ICR0_ENA, reg); 2653 i40e_flush(hw); 2654 2655 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state); 2656 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { 2657 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; 2658 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; 2659 /* read GLGEN_VFLRSTAT register to find out the flr VFs */ 2660 vf = &pf->vf[vf_id]; 2661 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); 2662 if (reg & BIT(bit_idx)) 2663 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ 2664 i40e_reset_vf(vf, true); 2665 } 2666 2667 return 0; 2668 } 2669 2670 /** 2671 * i40e_ndo_set_vf_mac 2672 * @netdev: network interface device structure 2673 * @vf_id: VF identifier 2674 * @mac: mac address 2675 * 2676 * program VF mac address 2677 **/ 2678 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) 2679 { 2680 struct i40e_netdev_priv *np = netdev_priv(netdev); 2681 struct i40e_vsi *vsi = np->vsi; 2682 struct i40e_pf *pf = vsi->back; 2683 struct i40e_mac_filter *f; 2684 struct i40e_vf *vf; 2685 int ret = 0; 2686 int bkt; 2687 2688 /* validate the request */ 2689 if (vf_id >= pf->num_alloc_vfs) { 2690 dev_err(&pf->pdev->dev, 2691 "Invalid VF Identifier %d\n", vf_id); 2692 ret = -EINVAL; 2693 goto error_param; 2694 } 2695 2696 vf = &(pf->vf[vf_id]); 2697 vsi = pf->vsi[vf->lan_vsi_idx]; 2698 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2699 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2700 vf_id); 2701 ret = -EAGAIN; 2702 goto error_param; 2703 } 2704 2705 if (is_multicast_ether_addr(mac)) { 2706 dev_err(&pf->pdev->dev, 2707 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); 2708 ret = -EINVAL; 2709 goto error_param; 2710 } 2711 2712 /* Lock once because below invoked function add/del_filter requires 2713 * mac_filter_hash_lock to be held 2714 */ 2715 spin_lock_bh(&vsi->mac_filter_hash_lock); 2716 2717 /* delete the temporary mac address */ 2718 if (!is_zero_ether_addr(vf->default_lan_addr.addr)) 2719 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); 2720 2721 /* Delete all the filters for this VSI - we're going to kill it 2722 * anyway. 2723 */ 2724 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) 2725 __i40e_del_filter(vsi, f); 2726 2727 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2728 2729 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id); 2730 /* program mac filter */ 2731 if (i40e_sync_vsi_filters(vsi)) { 2732 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); 2733 ret = -EIO; 2734 goto error_param; 2735 } 2736 ether_addr_copy(vf->default_lan_addr.addr, mac); 2737 vf->pf_set_mac = true; 2738 /* Force the VF driver stop so it has to reload with new MAC address */ 2739 i40e_vc_disable_vf(pf, vf); 2740 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n"); 2741 2742 error_param: 2743 return ret; 2744 } 2745 2746 /** 2747 * i40e_ndo_set_vf_port_vlan 2748 * @netdev: network interface device structure 2749 * @vf_id: VF identifier 2750 * @vlan_id: mac address 2751 * @qos: priority setting 2752 * @vlan_proto: vlan protocol 2753 * 2754 * program VF vlan id and/or qos 2755 **/ 2756 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, 2757 u16 vlan_id, u8 qos, __be16 vlan_proto) 2758 { 2759 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); 2760 struct i40e_netdev_priv *np = netdev_priv(netdev); 2761 struct i40e_pf *pf = np->vsi->back; 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 /* Locked once because multiple functions below iterate list */ 2799 spin_lock_bh(&vsi->mac_filter_hash_lock); 2800 2801 if (le16_to_cpu(vsi->info.pvid) == 0 && i40e_is_vsi_in_vlan(vsi)) { 2802 dev_err(&pf->pdev->dev, 2803 "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", 2804 vf_id); 2805 /* Administrator Error - knock the VF offline until he does 2806 * the right thing by reconfiguring his network correctly 2807 * and then reloading the VF driver. 2808 */ 2809 i40e_vc_disable_vf(pf, vf); 2810 /* During reset the VF got a new VSI, so refresh the pointer. */ 2811 vsi = pf->vsi[vf->lan_vsi_idx]; 2812 } 2813 2814 /* Check for condition where there was already a port VLAN ID 2815 * filter set and now it is being deleted by setting it to zero. 2816 * Additionally check for the condition where there was a port 2817 * VLAN but now there is a new and different port VLAN being set. 2818 * Before deleting all the old VLAN filters we must add new ones 2819 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our 2820 * MAC addresses deleted. 2821 */ 2822 if ((!(vlan_id || qos) || 2823 vlanprio != le16_to_cpu(vsi->info.pvid)) && 2824 vsi->info.pvid) { 2825 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); 2826 if (ret) { 2827 dev_info(&vsi->back->pdev->dev, 2828 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 2829 vsi->back->hw.aq.asq_last_status); 2830 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2831 goto error_pvid; 2832 } 2833 } 2834 2835 if (vsi->info.pvid) { 2836 /* remove all filters on the old VLAN */ 2837 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & 2838 VLAN_VID_MASK)); 2839 } 2840 2841 if (vlan_id || qos) 2842 ret = i40e_vsi_add_pvid(vsi, vlanprio); 2843 else 2844 i40e_vsi_remove_pvid(vsi); 2845 2846 if (vlan_id) { 2847 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", 2848 vlan_id, qos, vf_id); 2849 2850 /* add new VLAN filter for each MAC */ 2851 ret = i40e_add_vlan_all_mac(vsi, vlan_id); 2852 if (ret) { 2853 dev_info(&vsi->back->pdev->dev, 2854 "add VF VLAN failed, ret=%d aq_err=%d\n", ret, 2855 vsi->back->hw.aq.asq_last_status); 2856 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2857 goto error_pvid; 2858 } 2859 2860 /* remove the previously added non-VLAN MAC filters */ 2861 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); 2862 } 2863 2864 spin_unlock_bh(&vsi->mac_filter_hash_lock); 2865 2866 /* Schedule the worker thread to take care of applying changes */ 2867 i40e_service_event_schedule(vsi->back); 2868 2869 if (ret) { 2870 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); 2871 goto error_pvid; 2872 } 2873 2874 /* The Port VLAN needs to be saved across resets the same as the 2875 * default LAN MAC address. 2876 */ 2877 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); 2878 ret = 0; 2879 2880 error_pvid: 2881 return ret; 2882 } 2883 2884 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */ 2885 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */ 2886 /** 2887 * i40e_ndo_set_vf_bw 2888 * @netdev: network interface device structure 2889 * @vf_id: VF identifier 2890 * @tx_rate: Tx rate 2891 * 2892 * configure VF Tx rate 2893 **/ 2894 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, 2895 int max_tx_rate) 2896 { 2897 struct i40e_netdev_priv *np = netdev_priv(netdev); 2898 struct i40e_pf *pf = np->vsi->back; 2899 struct i40e_vsi *vsi; 2900 struct i40e_vf *vf; 2901 int speed = 0; 2902 int ret = 0; 2903 2904 /* validate the request */ 2905 if (vf_id >= pf->num_alloc_vfs) { 2906 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id); 2907 ret = -EINVAL; 2908 goto error; 2909 } 2910 2911 if (min_tx_rate) { 2912 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", 2913 min_tx_rate, vf_id); 2914 return -EINVAL; 2915 } 2916 2917 vf = &(pf->vf[vf_id]); 2918 vsi = pf->vsi[vf->lan_vsi_idx]; 2919 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 2920 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 2921 vf_id); 2922 ret = -EAGAIN; 2923 goto error; 2924 } 2925 2926 switch (pf->hw.phy.link_info.link_speed) { 2927 case I40E_LINK_SPEED_40GB: 2928 speed = 40000; 2929 break; 2930 case I40E_LINK_SPEED_25GB: 2931 speed = 25000; 2932 break; 2933 case I40E_LINK_SPEED_20GB: 2934 speed = 20000; 2935 break; 2936 case I40E_LINK_SPEED_10GB: 2937 speed = 10000; 2938 break; 2939 case I40E_LINK_SPEED_1GB: 2940 speed = 1000; 2941 break; 2942 default: 2943 break; 2944 } 2945 2946 if (max_tx_rate > speed) { 2947 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.\n", 2948 max_tx_rate, vf->vf_id); 2949 ret = -EINVAL; 2950 goto error; 2951 } 2952 2953 if ((max_tx_rate < 50) && (max_tx_rate > 0)) { 2954 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n"); 2955 max_tx_rate = 50; 2956 } 2957 2958 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/ 2959 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, 2960 max_tx_rate / I40E_BW_CREDIT_DIVISOR, 2961 I40E_MAX_BW_INACTIVE_ACCUM, NULL); 2962 if (ret) { 2963 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n", 2964 ret); 2965 ret = -EIO; 2966 goto error; 2967 } 2968 vf->tx_rate = max_tx_rate; 2969 error: 2970 return ret; 2971 } 2972 2973 /** 2974 * i40e_ndo_get_vf_config 2975 * @netdev: network interface device structure 2976 * @vf_id: VF identifier 2977 * @ivi: VF configuration structure 2978 * 2979 * return VF configuration 2980 **/ 2981 int i40e_ndo_get_vf_config(struct net_device *netdev, 2982 int vf_id, struct ifla_vf_info *ivi) 2983 { 2984 struct i40e_netdev_priv *np = netdev_priv(netdev); 2985 struct i40e_vsi *vsi = np->vsi; 2986 struct i40e_pf *pf = vsi->back; 2987 struct i40e_vf *vf; 2988 int ret = 0; 2989 2990 /* validate the request */ 2991 if (vf_id >= pf->num_alloc_vfs) { 2992 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 2993 ret = -EINVAL; 2994 goto error_param; 2995 } 2996 2997 vf = &(pf->vf[vf_id]); 2998 /* first vsi is always the LAN vsi */ 2999 vsi = pf->vsi[vf->lan_vsi_idx]; 3000 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 3001 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3002 vf_id); 3003 ret = -EAGAIN; 3004 goto error_param; 3005 } 3006 3007 ivi->vf = vf_id; 3008 3009 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); 3010 3011 ivi->max_tx_rate = vf->tx_rate; 3012 ivi->min_tx_rate = 0; 3013 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; 3014 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> 3015 I40E_VLAN_PRIORITY_SHIFT; 3016 if (vf->link_forced == false) 3017 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; 3018 else if (vf->link_up == true) 3019 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; 3020 else 3021 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; 3022 ivi->spoofchk = vf->spoofchk; 3023 ivi->trusted = vf->trusted; 3024 ret = 0; 3025 3026 error_param: 3027 return ret; 3028 } 3029 3030 /** 3031 * i40e_ndo_set_vf_link_state 3032 * @netdev: network interface device structure 3033 * @vf_id: VF identifier 3034 * @link: required link state 3035 * 3036 * Set the link state of a specified VF, regardless of physical link state 3037 **/ 3038 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) 3039 { 3040 struct i40e_netdev_priv *np = netdev_priv(netdev); 3041 struct i40e_pf *pf = np->vsi->back; 3042 struct i40e_virtchnl_pf_event pfe; 3043 struct i40e_hw *hw = &pf->hw; 3044 struct i40e_vf *vf; 3045 int abs_vf_id; 3046 int ret = 0; 3047 3048 /* validate the request */ 3049 if (vf_id >= pf->num_alloc_vfs) { 3050 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3051 ret = -EINVAL; 3052 goto error_out; 3053 } 3054 3055 vf = &pf->vf[vf_id]; 3056 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; 3057 3058 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; 3059 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; 3060 3061 switch (link) { 3062 case IFLA_VF_LINK_STATE_AUTO: 3063 vf->link_forced = false; 3064 pfe.event_data.link_event.link_status = 3065 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; 3066 pfe.event_data.link_event.link_speed = 3067 pf->hw.phy.link_info.link_speed; 3068 break; 3069 case IFLA_VF_LINK_STATE_ENABLE: 3070 vf->link_forced = true; 3071 vf->link_up = true; 3072 pfe.event_data.link_event.link_status = true; 3073 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB; 3074 break; 3075 case IFLA_VF_LINK_STATE_DISABLE: 3076 vf->link_forced = true; 3077 vf->link_up = false; 3078 pfe.event_data.link_event.link_status = false; 3079 pfe.event_data.link_event.link_speed = 0; 3080 break; 3081 default: 3082 ret = -EINVAL; 3083 goto error_out; 3084 } 3085 /* Notify the VF of its new link state */ 3086 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, 3087 0, (u8 *)&pfe, sizeof(pfe), NULL); 3088 3089 error_out: 3090 return ret; 3091 } 3092 3093 /** 3094 * i40e_ndo_set_vf_spoofchk 3095 * @netdev: network interface device structure 3096 * @vf_id: VF identifier 3097 * @enable: flag to enable or disable feature 3098 * 3099 * Enable or disable VF spoof checking 3100 **/ 3101 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) 3102 { 3103 struct i40e_netdev_priv *np = netdev_priv(netdev); 3104 struct i40e_vsi *vsi = np->vsi; 3105 struct i40e_pf *pf = vsi->back; 3106 struct i40e_vsi_context ctxt; 3107 struct i40e_hw *hw = &pf->hw; 3108 struct i40e_vf *vf; 3109 int ret = 0; 3110 3111 /* validate the request */ 3112 if (vf_id >= pf->num_alloc_vfs) { 3113 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3114 ret = -EINVAL; 3115 goto out; 3116 } 3117 3118 vf = &(pf->vf[vf_id]); 3119 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) { 3120 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", 3121 vf_id); 3122 ret = -EAGAIN; 3123 goto out; 3124 } 3125 3126 if (enable == vf->spoofchk) 3127 goto out; 3128 3129 vf->spoofchk = enable; 3130 memset(&ctxt, 0, sizeof(ctxt)); 3131 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; 3132 ctxt.pf_num = pf->hw.pf_id; 3133 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); 3134 if (enable) 3135 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | 3136 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); 3137 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); 3138 if (ret) { 3139 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", 3140 ret); 3141 ret = -EIO; 3142 } 3143 out: 3144 return ret; 3145 } 3146 3147 /** 3148 * i40e_ndo_set_vf_trust 3149 * @netdev: network interface device structure of the pf 3150 * @vf_id: VF identifier 3151 * @setting: trust setting 3152 * 3153 * Enable or disable VF trust setting 3154 **/ 3155 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) 3156 { 3157 struct i40e_netdev_priv *np = netdev_priv(netdev); 3158 struct i40e_pf *pf = np->vsi->back; 3159 struct i40e_vf *vf; 3160 int ret = 0; 3161 3162 /* validate the request */ 3163 if (vf_id >= pf->num_alloc_vfs) { 3164 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); 3165 return -EINVAL; 3166 } 3167 3168 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3169 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); 3170 return -EINVAL; 3171 } 3172 3173 vf = &pf->vf[vf_id]; 3174 3175 if (!vf) 3176 return -EINVAL; 3177 if (setting == vf->trusted) 3178 goto out; 3179 3180 vf->trusted = setting; 3181 i40e_vc_notify_vf_reset(vf); 3182 i40e_reset_vf(vf, false); 3183 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", 3184 vf_id, setting ? "" : "un"); 3185 out: 3186 return ret; 3187 } 3188