5010 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright(c) 2013 - 2018 Intel Corporation. */3 4#include "i40e.h"5#include "i40e_lan_hmc.h"6#include "i40e_virtchnl_pf.h"7 8/*********************notification routines***********************/9 10/**11 * i40e_vc_vf_broadcast12 * @pf: pointer to the PF structure13 * @v_opcode: operation code14 * @v_retval: return value15 * @msg: pointer to the msg buffer16 * @msglen: msg length17 *18 * send a message to all VFs on a given PF19 **/20static void i40e_vc_vf_broadcast(struct i40e_pf *pf,21 enum virtchnl_ops v_opcode,22 int v_retval, u8 *msg,23 u16 msglen)24{25 struct i40e_hw *hw = &pf->hw;26 struct i40e_vf *vf = pf->vf;27 int i;28 29 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {30 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;31 /* Not all vfs are enabled so skip the ones that are not */32 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&33 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))34 continue;35 36 /* Ignore return value on purpose - a given VF may fail, but37 * we need to keep going and send to all of them38 */39 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,40 msg, msglen, NULL);41 }42}43 44/**45 * i40e_vc_link_speed2mbps46 * converts i40e_aq_link_speed to integer value of Mbps47 * @link_speed: the speed to convert48 *49 * return the speed as direct value of Mbps.50 **/51static u3252i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)53{54 switch (link_speed) {55 case I40E_LINK_SPEED_100MB:56 return SPEED_100;57 case I40E_LINK_SPEED_1GB:58 return SPEED_1000;59 case I40E_LINK_SPEED_2_5GB:60 return SPEED_2500;61 case I40E_LINK_SPEED_5GB:62 return SPEED_5000;63 case I40E_LINK_SPEED_10GB:64 return SPEED_10000;65 case I40E_LINK_SPEED_20GB:66 return SPEED_20000;67 case I40E_LINK_SPEED_25GB:68 return SPEED_25000;69 case I40E_LINK_SPEED_40GB:70 return SPEED_40000;71 case I40E_LINK_SPEED_UNKNOWN:72 return SPEED_UNKNOWN;73 }74 return SPEED_UNKNOWN;75}76 77/**78 * i40e_set_vf_link_state79 * @vf: pointer to the VF structure80 * @pfe: pointer to PF event structure81 * @ls: pointer to link status structure82 *83 * set a link state on a single vf84 **/85static void i40e_set_vf_link_state(struct i40e_vf *vf,86 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)87{88 u8 link_status = ls->link_info & I40E_AQ_LINK_UP;89 90 if (vf->link_forced)91 link_status = vf->link_up;92 93 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {94 pfe->event_data.link_event_adv.link_speed = link_status ?95 i40e_vc_link_speed2mbps(ls->link_speed) : 0;96 pfe->event_data.link_event_adv.link_status = link_status;97 } else {98 pfe->event_data.link_event.link_speed = link_status ?99 i40e_virtchnl_link_speed(ls->link_speed) : 0;100 pfe->event_data.link_event.link_status = link_status;101 }102}103 104/**105 * i40e_vc_notify_vf_link_state106 * @vf: pointer to the VF structure107 *108 * send a link status message to a single VF109 **/110static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)111{112 struct virtchnl_pf_event pfe;113 struct i40e_pf *pf = vf->pf;114 struct i40e_hw *hw = &pf->hw;115 struct i40e_link_status *ls = &pf->hw.phy.link_info;116 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;117 118 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;119 pfe.severity = PF_EVENT_SEVERITY_INFO;120 121 i40e_set_vf_link_state(vf, &pfe, ls);122 123 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,124 0, (u8 *)&pfe, sizeof(pfe), NULL);125}126 127/**128 * i40e_vc_notify_link_state129 * @pf: pointer to the PF structure130 *131 * send a link status message to all VFs on a given PF132 **/133void i40e_vc_notify_link_state(struct i40e_pf *pf)134{135 int i;136 137 for (i = 0; i < pf->num_alloc_vfs; i++)138 i40e_vc_notify_vf_link_state(&pf->vf[i]);139}140 141/**142 * i40e_vc_notify_reset143 * @pf: pointer to the PF structure144 *145 * indicate a pending reset to all VFs on a given PF146 **/147void i40e_vc_notify_reset(struct i40e_pf *pf)148{149 struct virtchnl_pf_event pfe;150 151 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;152 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;153 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,154 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));155}156 157#ifdef CONFIG_PCI_IOV158void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev)159{160 u16 vf_id;161 u16 pos;162 163 /* Continue only if this is a PF */164 if (!pdev->is_physfn)165 return;166 167 if (!pci_num_vf(pdev))168 return;169 170 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);171 if (pos) {172 struct pci_dev *vf_dev = NULL;173 174 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);175 while ((vf_dev = pci_get_device(pdev->vendor, vf_id, vf_dev))) {176 if (vf_dev->is_virtfn && vf_dev->physfn == pdev)177 pci_restore_msi_state(vf_dev);178 }179 }180}181#endif /* CONFIG_PCI_IOV */182 183/**184 * i40e_vc_notify_vf_reset185 * @vf: pointer to the VF structure186 *187 * indicate a pending reset to the given VF188 **/189void i40e_vc_notify_vf_reset(struct i40e_vf *vf)190{191 struct virtchnl_pf_event pfe;192 int abs_vf_id;193 194 /* validate the request */195 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)196 return;197 198 /* verify if the VF is in either init or active before proceeding */199 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&200 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))201 return;202 203 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;204 205 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;206 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;207 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,208 0, (u8 *)&pfe,209 sizeof(struct virtchnl_pf_event), NULL);210}211/***********************misc routines*****************************/212 213/**214 * i40e_vc_reset_vf215 * @vf: pointer to the VF info216 * @notify_vf: notify vf about reset or not217 * Reset VF handler.218 **/219static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)220{221 struct i40e_pf *pf = vf->pf;222 int i;223 224 if (notify_vf)225 i40e_vc_notify_vf_reset(vf);226 227 /* We want to ensure that an actual reset occurs initiated after this228 * function was called. However, we do not want to wait forever, so229 * we'll give a reasonable time and print a message if we failed to230 * ensure a reset.231 */232 for (i = 0; i < 20; i++) {233 /* If PF is in VFs releasing state reset VF is impossible,234 * so leave it.235 */236 if (test_bit(__I40E_VFS_RELEASING, pf->state))237 return;238 if (i40e_reset_vf(vf, false))239 return;240 usleep_range(10000, 20000);241 }242 243 if (notify_vf)244 dev_warn(&vf->pf->pdev->dev,245 "Failed to initiate reset for VF %d after 200 milliseconds\n",246 vf->vf_id);247 else248 dev_dbg(&vf->pf->pdev->dev,249 "Failed to initiate reset for VF %d after 200 milliseconds\n",250 vf->vf_id);251}252 253/**254 * i40e_vc_isvalid_vsi_id255 * @vf: pointer to the VF info256 * @vsi_id: VF relative VSI id257 *258 * check for the valid VSI id259 **/260static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)261{262 struct i40e_pf *pf = vf->pf;263 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);264 265 return (vsi && (vsi->vf_id == vf->vf_id));266}267 268/**269 * i40e_vc_isvalid_queue_id270 * @vf: pointer to the VF info271 * @vsi_id: vsi id272 * @qid: vsi relative queue id273 *274 * check for the valid queue id275 **/276static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,277 u16 qid)278{279 struct i40e_pf *pf = vf->pf;280 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);281 282 return (vsi && (qid < vsi->alloc_queue_pairs));283}284 285/**286 * i40e_vc_isvalid_vector_id287 * @vf: pointer to the VF info288 * @vector_id: VF relative vector id289 *290 * check for the valid vector id291 **/292static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)293{294 struct i40e_pf *pf = vf->pf;295 296 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;297}298 299/***********************vf resource mgmt routines*****************/300 301/**302 * i40e_vc_get_pf_queue_id303 * @vf: pointer to the VF info304 * @vsi_id: id of VSI as provided by the FW305 * @vsi_queue_id: vsi relative queue id306 *307 * return PF relative queue id308 **/309static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,310 u8 vsi_queue_id)311{312 struct i40e_pf *pf = vf->pf;313 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);314 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;315 316 if (!vsi)317 return pf_queue_id;318 319 if (le16_to_cpu(vsi->info.mapping_flags) &320 I40E_AQ_VSI_QUE_MAP_NONCONTIG)321 pf_queue_id =322 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);323 else324 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +325 vsi_queue_id;326 327 return pf_queue_id;328}329 330/**331 * i40e_get_real_pf_qid332 * @vf: pointer to the VF info333 * @vsi_id: vsi id334 * @queue_id: queue number335 *336 * wrapper function to get pf_queue_id handling ADq code as well337 **/338static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)339{340 int i;341 342 if (vf->adq_enabled) {343 /* Although VF considers all the queues(can be 1 to 16) as its344 * own but they may actually belong to different VSIs(up to 4).345 * We need to find which queues belongs to which VSI.346 */347 for (i = 0; i < vf->num_tc; i++) {348 if (queue_id < vf->ch[i].num_qps) {349 vsi_id = vf->ch[i].vsi_id;350 break;351 }352 /* find right queue id which is relative to a353 * given VSI.354 */355 queue_id -= vf->ch[i].num_qps;356 }357 }358 359 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);360}361 362/**363 * i40e_config_irq_link_list364 * @vf: pointer to the VF info365 * @vsi_id: id of VSI as given by the FW366 * @vecmap: irq map info367 *368 * configure irq link list from the map369 **/370static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,371 struct virtchnl_vector_map *vecmap)372{373 unsigned long linklistmap = 0, tempmap;374 struct i40e_pf *pf = vf->pf;375 struct i40e_hw *hw = &pf->hw;376 u16 vsi_queue_id, pf_queue_id;377 enum i40e_queue_type qtype;378 u16 next_q, vector_id, size;379 u32 reg, reg_idx;380 u16 itr_idx = 0;381 382 vector_id = vecmap->vector_id;383 /* setup the head */384 if (0 == vector_id)385 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);386 else387 reg_idx = I40E_VPINT_LNKLSTN(388 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +389 (vector_id - 1));390 391 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {392 /* Special case - No queues mapped on this vector */393 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);394 goto irq_list_done;395 }396 tempmap = vecmap->rxq_map;397 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {398 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *399 vsi_queue_id));400 }401 402 tempmap = vecmap->txq_map;403 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {404 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *405 vsi_queue_id + 1));406 }407 408 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;409 next_q = find_first_bit(&linklistmap, size);410 if (unlikely(next_q == size))411 goto irq_list_done;412 413 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;414 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;415 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id);416 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);417 418 wr32(hw, reg_idx, reg);419 420 while (next_q < size) {421 switch (qtype) {422 case I40E_QUEUE_TYPE_RX:423 reg_idx = I40E_QINT_RQCTL(pf_queue_id);424 itr_idx = vecmap->rxitr_idx;425 break;426 case I40E_QUEUE_TYPE_TX:427 reg_idx = I40E_QINT_TQCTL(pf_queue_id);428 itr_idx = vecmap->txitr_idx;429 break;430 default:431 break;432 }433 434 next_q = find_next_bit(&linklistmap, size, next_q + 1);435 if (next_q < size) {436 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;437 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;438 pf_queue_id = i40e_get_real_pf_qid(vf,439 vsi_id,440 vsi_queue_id);441 } else {442 pf_queue_id = I40E_QUEUE_END_OF_LIST;443 qtype = 0;444 }445 446 /* format for the RQCTL & TQCTL regs is same */447 reg = (vector_id) |448 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |449 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |450 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |451 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);452 wr32(hw, reg_idx, reg);453 }454 455 /* if the vf is running in polling mode and using interrupt zero,456 * need to disable auto-mask on enabling zero interrupt for VFs.457 */458 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&459 (vector_id == 0)) {460 reg = rd32(hw, I40E_GLINT_CTL);461 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {462 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;463 wr32(hw, I40E_GLINT_CTL, reg);464 }465 }466 467irq_list_done:468 i40e_flush(hw);469}470 471/**472 * i40e_release_rdma_qvlist473 * @vf: pointer to the VF.474 *475 **/476static void i40e_release_rdma_qvlist(struct i40e_vf *vf)477{478 struct i40e_pf *pf = vf->pf;479 struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info;480 u32 msix_vf;481 u32 i;482 483 if (!vf->qvlist_info)484 return;485 486 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;487 for (i = 0; i < qvlist_info->num_vectors; i++) {488 struct virtchnl_rdma_qv_info *qv_info;489 u32 next_q_index, next_q_type;490 struct i40e_hw *hw = &pf->hw;491 u32 v_idx, reg_idx, reg;492 493 qv_info = &qvlist_info->qv_info[i];494 v_idx = qv_info->v_idx;495 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {496 /* Figure out the queue after CEQ and make that the497 * first queue.498 */499 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;500 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));501 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,502 reg);503 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,504 reg);505 506 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);507 reg = (next_q_index &508 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |509 (next_q_type <<510 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);511 512 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);513 }514 }515 kfree(vf->qvlist_info);516 vf->qvlist_info = NULL;517}518 519/**520 * i40e_config_rdma_qvlist521 * @vf: pointer to the VF info522 * @qvlist_info: queue and vector list523 *524 * Return 0 on success or < 0 on error525 **/526static int527i40e_config_rdma_qvlist(struct i40e_vf *vf,528 struct virtchnl_rdma_qvlist_info *qvlist_info)529{530 struct i40e_pf *pf = vf->pf;531 struct i40e_hw *hw = &pf->hw;532 struct virtchnl_rdma_qv_info *qv_info;533 u32 v_idx, i, reg_idx, reg;534 u32 next_q_idx, next_q_type;535 size_t size;536 u32 msix_vf;537 int ret = 0;538 539 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;540 541 if (qvlist_info->num_vectors > msix_vf) {542 dev_warn(&pf->pdev->dev,543 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",544 qvlist_info->num_vectors,545 msix_vf);546 ret = -EINVAL;547 goto err_out;548 }549 550 kfree(vf->qvlist_info);551 size = virtchnl_struct_size(vf->qvlist_info, qv_info,552 qvlist_info->num_vectors);553 vf->qvlist_info = kzalloc(size, GFP_KERNEL);554 if (!vf->qvlist_info) {555 ret = -ENOMEM;556 goto err_out;557 }558 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;559 560 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;561 for (i = 0; i < qvlist_info->num_vectors; i++) {562 qv_info = &qvlist_info->qv_info[i];563 564 /* Validate vector id belongs to this vf */565 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {566 ret = -EINVAL;567 goto err_free;568 }569 570 v_idx = qv_info->v_idx;571 572 vf->qvlist_info->qv_info[i] = *qv_info;573 574 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);575 /* We might be sharing the interrupt, so get the first queue576 * index and type, push it down the list by adding the new577 * queue on top. Also link it with the new queue in CEQCTL.578 */579 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));580 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,581 reg);582 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,583 reg);584 585 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {586 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;587 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |588 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |589 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |590 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |591 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));592 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);593 594 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);595 reg = (qv_info->ceq_idx &596 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |597 (I40E_QUEUE_TYPE_PE_CEQ <<598 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);599 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);600 }601 602 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {603 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |604 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |605 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));606 607 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);608 }609 }610 611 return 0;612err_free:613 kfree(vf->qvlist_info);614 vf->qvlist_info = NULL;615err_out:616 return ret;617}618 619/**620 * i40e_config_vsi_tx_queue621 * @vf: pointer to the VF info622 * @vsi_id: id of VSI as provided by the FW623 * @vsi_queue_id: vsi relative queue index624 * @info: config. info625 *626 * configure tx queue627 **/628static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,629 u16 vsi_queue_id,630 struct virtchnl_txq_info *info)631{632 struct i40e_pf *pf = vf->pf;633 struct i40e_hw *hw = &pf->hw;634 struct i40e_hmc_obj_txq tx_ctx;635 struct i40e_vsi *vsi;636 u16 pf_queue_id;637 u32 qtx_ctl;638 int ret = 0;639 640 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {641 ret = -ENOENT;642 goto error_context;643 }644 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);645 vsi = i40e_find_vsi_from_id(pf, vsi_id);646 if (!vsi) {647 ret = -ENOENT;648 goto error_context;649 }650 651 /* clear the context structure first */652 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));653 654 /* only set the required fields */655 tx_ctx.base = info->dma_ring_addr / 128;656 tx_ctx.qlen = info->ring_len;657 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);658 tx_ctx.rdylist_act = 0;659 tx_ctx.head_wb_ena = info->headwb_enabled;660 tx_ctx.head_wb_addr = info->dma_headwb_addr;661 662 /* clear the context in the HMC */663 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);664 if (ret) {665 dev_err(&pf->pdev->dev,666 "Failed to clear VF LAN Tx queue context %d, error: %d\n",667 pf_queue_id, ret);668 ret = -ENOENT;669 goto error_context;670 }671 672 /* set the context in the HMC */673 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);674 if (ret) {675 dev_err(&pf->pdev->dev,676 "Failed to set VF LAN Tx queue context %d error: %d\n",677 pf_queue_id, ret);678 ret = -ENOENT;679 goto error_context;680 }681 682 /* associate this queue with the PCI VF function */683 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;684 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);685 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,686 vf->vf_id + hw->func_caps.vf_base_id);687 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);688 i40e_flush(hw);689 690error_context:691 return ret;692}693 694/**695 * i40e_config_vsi_rx_queue696 * @vf: pointer to the VF info697 * @vsi_id: id of VSI as provided by the FW698 * @vsi_queue_id: vsi relative queue index699 * @info: config. info700 *701 * configure rx queue702 **/703static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,704 u16 vsi_queue_id,705 struct virtchnl_rxq_info *info)706{707 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);708 struct i40e_pf *pf = vf->pf;709 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];710 struct i40e_hw *hw = &pf->hw;711 struct i40e_hmc_obj_rxq rx_ctx;712 int ret = 0;713 714 /* clear the context structure first */715 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));716 717 /* only set the required fields */718 rx_ctx.base = info->dma_ring_addr / 128;719 rx_ctx.qlen = info->ring_len;720 721 if (info->splithdr_enabled) {722 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |723 I40E_RX_SPLIT_IP |724 I40E_RX_SPLIT_TCP_UDP |725 I40E_RX_SPLIT_SCTP;726 /* header length validation */727 if (info->hdr_size > ((2 * 1024) - 64)) {728 ret = -EINVAL;729 goto error_param;730 }731 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;732 733 /* set split mode 10b */734 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;735 }736 737 /* databuffer length validation */738 if (info->databuffer_size > ((16 * 1024) - 128)) {739 ret = -EINVAL;740 goto error_param;741 }742 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;743 744 /* max pkt. length validation */745 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {746 ret = -EINVAL;747 goto error_param;748 }749 rx_ctx.rxmax = info->max_pkt_size;750 751 /* if port VLAN is configured increase the max packet size */752 if (vsi->info.pvid)753 rx_ctx.rxmax += VLAN_HLEN;754 755 /* enable 32bytes desc always */756 rx_ctx.dsize = 1;757 758 /* default values */759 rx_ctx.lrxqthresh = 1;760 rx_ctx.crcstrip = 1;761 rx_ctx.prefena = 1;762 rx_ctx.l2tsel = 1;763 764 /* clear the context in the HMC */765 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);766 if (ret) {767 dev_err(&pf->pdev->dev,768 "Failed to clear VF LAN Rx queue context %d, error: %d\n",769 pf_queue_id, ret);770 ret = -ENOENT;771 goto error_param;772 }773 774 /* set the context in the HMC */775 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);776 if (ret) {777 dev_err(&pf->pdev->dev,778 "Failed to set VF LAN Rx queue context %d error: %d\n",779 pf_queue_id, ret);780 ret = -ENOENT;781 goto error_param;782 }783 784error_param:785 return ret;786}787 788/**789 * i40e_alloc_vsi_res790 * @vf: pointer to the VF info791 * @idx: VSI index, applies only for ADq mode, zero otherwise792 *793 * alloc VF vsi context & resources794 **/795static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)796{797 struct i40e_mac_filter *f = NULL;798 struct i40e_vsi *main_vsi, *vsi;799 struct i40e_pf *pf = vf->pf;800 u64 max_tx_rate = 0;801 int ret = 0;802 803 main_vsi = i40e_pf_get_main_vsi(pf);804 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, main_vsi->seid, vf->vf_id);805 806 if (!vsi) {807 dev_err(&pf->pdev->dev,808 "add vsi failed for VF %d, aq_err %d\n",809 vf->vf_id, pf->hw.aq.asq_last_status);810 ret = -ENOENT;811 goto error_alloc_vsi_res;812 }813 814 if (!idx) {815 u64 hena = i40e_pf_get_default_rss_hena(pf);816 u8 broadcast[ETH_ALEN];817 818 vf->lan_vsi_idx = vsi->idx;819 vf->lan_vsi_id = vsi->id;820 /* If the port VLAN has been configured and then the821 * VF driver was removed then the VSI port VLAN822 * configuration was destroyed. Check if there is823 * a port VLAN and restore the VSI configuration if824 * needed.825 */826 if (vf->port_vlan_id)827 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);828 829 spin_lock_bh(&vsi->mac_filter_hash_lock);830 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {831 f = i40e_add_mac_filter(vsi,832 vf->default_lan_addr.addr);833 if (!f)834 dev_info(&pf->pdev->dev,835 "Could not add MAC filter %pM for VF %d\n",836 vf->default_lan_addr.addr, vf->vf_id);837 }838 eth_broadcast_addr(broadcast);839 f = i40e_add_mac_filter(vsi, broadcast);840 if (!f)841 dev_info(&pf->pdev->dev,842 "Could not allocate VF broadcast filter\n");843 spin_unlock_bh(&vsi->mac_filter_hash_lock);844 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);845 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));846 /* program mac filter only for VF VSI */847 ret = i40e_sync_vsi_filters(vsi);848 if (ret)849 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");850 }851 852 /* storing VSI index and id for ADq and don't apply the mac filter */853 if (vf->adq_enabled) {854 vf->ch[idx].vsi_idx = vsi->idx;855 vf->ch[idx].vsi_id = vsi->id;856 }857 858 /* Set VF bandwidth if specified */859 if (vf->tx_rate) {860 max_tx_rate = vf->tx_rate;861 } else if (vf->ch[idx].max_tx_rate) {862 max_tx_rate = vf->ch[idx].max_tx_rate;863 }864 865 if (max_tx_rate) {866 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);867 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,868 max_tx_rate, 0, NULL);869 if (ret)870 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",871 vf->vf_id, ret);872 }873 874error_alloc_vsi_res:875 return ret;876}877 878/**879 * i40e_map_pf_queues_to_vsi880 * @vf: pointer to the VF info881 *882 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This883 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.884 **/885static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)886{887 struct i40e_pf *pf = vf->pf;888 struct i40e_hw *hw = &pf->hw;889 u32 reg, num_tc = 1; /* VF has at least one traffic class */890 u16 vsi_id, qps;891 int i, j;892 893 if (vf->adq_enabled)894 num_tc = vf->num_tc;895 896 for (i = 0; i < num_tc; i++) {897 if (vf->adq_enabled) {898 qps = vf->ch[i].num_qps;899 vsi_id = vf->ch[i].vsi_id;900 } else {901 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;902 vsi_id = vf->lan_vsi_id;903 }904 905 for (j = 0; j < 7; j++) {906 if (j * 2 >= qps) {907 /* end of list */908 reg = 0x07FF07FF;909 } else {910 u16 qid = i40e_vc_get_pf_queue_id(vf,911 vsi_id,912 j * 2);913 reg = qid;914 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,915 (j * 2) + 1);916 reg |= qid << 16;917 }918 i40e_write_rx_ctl(hw,919 I40E_VSILAN_QTABLE(j, vsi_id),920 reg);921 }922 }923}924 925/**926 * i40e_map_pf_to_vf_queues927 * @vf: pointer to the VF info928 *929 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This930 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.931 **/932static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)933{934 struct i40e_pf *pf = vf->pf;935 struct i40e_hw *hw = &pf->hw;936 u32 reg, total_qps = 0;937 u32 qps, num_tc = 1; /* VF has at least one traffic class */938 u16 vsi_id, qid;939 int i, j;940 941 if (vf->adq_enabled)942 num_tc = vf->num_tc;943 944 for (i = 0; i < num_tc; i++) {945 if (vf->adq_enabled) {946 qps = vf->ch[i].num_qps;947 vsi_id = vf->ch[i].vsi_id;948 } else {949 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;950 vsi_id = vf->lan_vsi_id;951 }952 953 for (j = 0; j < qps; j++) {954 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);955 956 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);957 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),958 reg);959 total_qps++;960 }961 }962}963 964/**965 * i40e_enable_vf_mappings966 * @vf: pointer to the VF info967 *968 * enable VF mappings969 **/970static void i40e_enable_vf_mappings(struct i40e_vf *vf)971{972 struct i40e_pf *pf = vf->pf;973 struct i40e_hw *hw = &pf->hw;974 u32 reg;975 976 /* Tell the hardware we're using noncontiguous mapping. HW requires977 * that VF queues be mapped using this method, even when they are978 * contiguous in real life979 */980 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),981 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);982 983 /* enable VF vplan_qtable mappings */984 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;985 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);986 987 i40e_map_pf_to_vf_queues(vf);988 i40e_map_pf_queues_to_vsi(vf);989 990 i40e_flush(hw);991}992 993/**994 * i40e_disable_vf_mappings995 * @vf: pointer to the VF info996 *997 * disable VF mappings998 **/999static void i40e_disable_vf_mappings(struct i40e_vf *vf)1000{1001 struct i40e_pf *pf = vf->pf;1002 struct i40e_hw *hw = &pf->hw;1003 int i;1004 1005 /* disable qp mappings */1006 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);1007 for (i = 0; i < I40E_MAX_VSI_QP; i++)1008 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),1009 I40E_QUEUE_END_OF_LIST);1010 i40e_flush(hw);1011}1012 1013/**1014 * i40e_free_vf_res1015 * @vf: pointer to the VF info1016 *1017 * free VF resources1018 **/1019static void i40e_free_vf_res(struct i40e_vf *vf)1020{1021 struct i40e_pf *pf = vf->pf;1022 struct i40e_hw *hw = &pf->hw;1023 u32 reg_idx, reg;1024 int i, j, msix_vf;1025 1026 /* Start by disabling VF's configuration API to prevent the OS from1027 * accessing the VF's VSI after it's freed / invalidated.1028 */1029 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);1030 1031 /* It's possible the VF had requeuested more queues than the default so1032 * do the accounting here when we're about to free them.1033 */1034 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {1035 pf->queues_left += vf->num_queue_pairs -1036 I40E_DEFAULT_QUEUES_PER_VF;1037 }1038 1039 /* free vsi & disconnect it from the parent uplink */1040 if (vf->lan_vsi_idx) {1041 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);1042 vf->lan_vsi_idx = 0;1043 vf->lan_vsi_id = 0;1044 }1045 1046 /* do the accounting and remove additional ADq VSI's */1047 if (vf->adq_enabled && vf->ch[0].vsi_idx) {1048 for (j = 0; j < vf->num_tc; j++) {1049 /* At this point VSI0 is already released so don't1050 * release it again and only clear their values in1051 * structure variables1052 */1053 if (j)1054 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);1055 vf->ch[j].vsi_idx = 0;1056 vf->ch[j].vsi_id = 0;1057 }1058 }1059 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;1060 1061 /* disable interrupts so the VF starts in a known state */1062 for (i = 0; i < msix_vf; i++) {1063 /* format is same for both registers */1064 if (0 == i)1065 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);1066 else1067 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *1068 (vf->vf_id))1069 + (i - 1));1070 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);1071 i40e_flush(hw);1072 }1073 1074 /* clear the irq settings */1075 for (i = 0; i < msix_vf; i++) {1076 /* format is same for both registers */1077 if (0 == i)1078 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);1079 else1080 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *1081 (vf->vf_id))1082 + (i - 1));1083 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |1084 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);1085 wr32(hw, reg_idx, reg);1086 i40e_flush(hw);1087 }1088 /* reset some of the state variables keeping track of the resources */1089 vf->num_queue_pairs = 0;1090 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);1091 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);1092}1093 1094/**1095 * i40e_alloc_vf_res1096 * @vf: pointer to the VF info1097 *1098 * allocate VF resources1099 **/1100static int i40e_alloc_vf_res(struct i40e_vf *vf)1101{1102 struct i40e_pf *pf = vf->pf;1103 int total_queue_pairs = 0;1104 int ret, idx;1105 1106 if (vf->num_req_queues &&1107 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)1108 pf->num_vf_qps = vf->num_req_queues;1109 else1110 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;1111 1112 /* allocate hw vsi context & associated resources */1113 ret = i40e_alloc_vsi_res(vf, 0);1114 if (ret)1115 goto error_alloc;1116 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;1117 1118 /* allocate additional VSIs based on tc information for ADq */1119 if (vf->adq_enabled) {1120 if (pf->queues_left >=1121 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {1122 /* TC 0 always belongs to VF VSI */1123 for (idx = 1; idx < vf->num_tc; idx++) {1124 ret = i40e_alloc_vsi_res(vf, idx);1125 if (ret)1126 goto error_alloc;1127 }1128 /* send correct number of queues */1129 total_queue_pairs = I40E_MAX_VF_QUEUES;1130 } else {1131 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",1132 vf->vf_id);1133 vf->adq_enabled = false;1134 }1135 }1136 1137 /* We account for each VF to get a default number of queue pairs. If1138 * the VF has now requested more, we need to account for that to make1139 * certain we never request more queues than we actually have left in1140 * HW.1141 */1142 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)1143 pf->queues_left -=1144 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;1145 1146 if (vf->trusted)1147 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);1148 else1149 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);1150 1151 /* store the total qps number for the runtime1152 * VF req validation1153 */1154 vf->num_queue_pairs = total_queue_pairs;1155 1156 /* VF is now completely initialized */1157 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);1158 1159error_alloc:1160 if (ret)1161 i40e_free_vf_res(vf);1162 1163 return ret;1164}1165 1166#define VF_DEVICE_STATUS 0xAA1167#define VF_TRANS_PENDING_MASK 0x201168/**1169 * i40e_quiesce_vf_pci1170 * @vf: pointer to the VF structure1171 *1172 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO1173 * if the transactions never clear.1174 **/1175static int i40e_quiesce_vf_pci(struct i40e_vf *vf)1176{1177 struct i40e_pf *pf = vf->pf;1178 struct i40e_hw *hw = &pf->hw;1179 int vf_abs_id, i;1180 u32 reg;1181 1182 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;1183 1184 wr32(hw, I40E_PF_PCI_CIAA,1185 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));1186 for (i = 0; i < 100; i++) {1187 reg = rd32(hw, I40E_PF_PCI_CIAD);1188 if ((reg & VF_TRANS_PENDING_MASK) == 0)1189 return 0;1190 udelay(1);1191 }1192 return -EIO;1193}1194 1195/**1196 * __i40e_getnum_vf_vsi_vlan_filters1197 * @vsi: pointer to the vsi1198 *1199 * called to get the number of VLANs offloaded on this VF1200 **/1201static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)1202{1203 struct i40e_mac_filter *f;1204 u16 num_vlans = 0, bkt;1205 1206 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {1207 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)1208 num_vlans++;1209 }1210 1211 return num_vlans;1212}1213 1214/**1215 * i40e_getnum_vf_vsi_vlan_filters1216 * @vsi: pointer to the vsi1217 *1218 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held1219 **/1220static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)1221{1222 int num_vlans;1223 1224 spin_lock_bh(&vsi->mac_filter_hash_lock);1225 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);1226 spin_unlock_bh(&vsi->mac_filter_hash_lock);1227 1228 return num_vlans;1229}1230 1231/**1232 * i40e_get_vlan_list_sync1233 * @vsi: pointer to the VSI1234 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller1235 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.1236 * This array is allocated here, but has to be freed in caller.1237 *1238 * Called to get number of VLANs and VLAN list present in mac_filter_hash.1239 **/1240static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,1241 s16 **vlan_list)1242{1243 struct i40e_mac_filter *f;1244 int i = 0;1245 int bkt;1246 1247 spin_lock_bh(&vsi->mac_filter_hash_lock);1248 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);1249 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);1250 if (!(*vlan_list))1251 goto err;1252 1253 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {1254 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)1255 continue;1256 (*vlan_list)[i++] = f->vlan;1257 }1258err:1259 spin_unlock_bh(&vsi->mac_filter_hash_lock);1260}1261 1262/**1263 * i40e_set_vsi_promisc1264 * @vf: pointer to the VF struct1265 * @seid: VSI number1266 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable1267 * for a given VLAN1268 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable1269 * for a given VLAN1270 * @vl: List of VLANs - apply filter for given VLANs1271 * @num_vlans: Number of elements in @vl1272 **/1273static int1274i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,1275 bool unicast_enable, s16 *vl, u16 num_vlans)1276{1277 struct i40e_pf *pf = vf->pf;1278 struct i40e_hw *hw = &pf->hw;1279 int aq_ret, aq_tmp = 0;1280 int i;1281 1282 /* No VLAN to set promisc on, set on VSI */1283 if (!num_vlans || !vl) {1284 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,1285 multi_enable,1286 NULL);1287 if (aq_ret) {1288 int aq_err = pf->hw.aq.asq_last_status;1289 1290 dev_err(&pf->pdev->dev,1291 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",1292 vf->vf_id,1293 ERR_PTR(aq_ret),1294 i40e_aq_str(&pf->hw, aq_err));1295 1296 return aq_ret;1297 }1298 1299 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,1300 unicast_enable,1301 NULL, true);1302 1303 if (aq_ret) {1304 int aq_err = pf->hw.aq.asq_last_status;1305 1306 dev_err(&pf->pdev->dev,1307 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",1308 vf->vf_id,1309 ERR_PTR(aq_ret),1310 i40e_aq_str(&pf->hw, aq_err));1311 }1312 1313 return aq_ret;1314 }1315 1316 for (i = 0; i < num_vlans; i++) {1317 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,1318 multi_enable,1319 vl[i], NULL);1320 if (aq_ret) {1321 int aq_err = pf->hw.aq.asq_last_status;1322 1323 dev_err(&pf->pdev->dev,1324 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",1325 vf->vf_id,1326 ERR_PTR(aq_ret),1327 i40e_aq_str(&pf->hw, aq_err));1328 1329 if (!aq_tmp)1330 aq_tmp = aq_ret;1331 }1332 1333 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,1334 unicast_enable,1335 vl[i], NULL);1336 if (aq_ret) {1337 int aq_err = pf->hw.aq.asq_last_status;1338 1339 dev_err(&pf->pdev->dev,1340 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",1341 vf->vf_id,1342 ERR_PTR(aq_ret),1343 i40e_aq_str(&pf->hw, aq_err));1344 1345 if (!aq_tmp)1346 aq_tmp = aq_ret;1347 }1348 }1349 1350 if (aq_tmp)1351 aq_ret = aq_tmp;1352 1353 return aq_ret;1354}1355 1356/**1357 * i40e_config_vf_promiscuous_mode1358 * @vf: pointer to the VF info1359 * @vsi_id: VSI id1360 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable1361 * @alluni: set MAC L2 layer unicast promiscuous enable/disable1362 *1363 * Called from the VF to configure the promiscuous mode of1364 * VF vsis and from the VF reset path to reset promiscuous mode.1365 **/1366static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,1367 u16 vsi_id,1368 bool allmulti,1369 bool alluni)1370{1371 struct i40e_pf *pf = vf->pf;1372 struct i40e_vsi *vsi;1373 int aq_ret = 0;1374 u16 num_vlans;1375 s16 *vl;1376 1377 vsi = i40e_find_vsi_from_id(pf, vsi_id);1378 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)1379 return -EINVAL;1380 1381 if (vf->port_vlan_id) {1382 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,1383 alluni, &vf->port_vlan_id, 1);1384 return aq_ret;1385 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {1386 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);1387 1388 if (!vl)1389 return -ENOMEM;1390 1391 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,1392 vl, num_vlans);1393 kfree(vl);1394 return aq_ret;1395 }1396 1397 /* no VLANs to set on, set on VSI */1398 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,1399 NULL, 0);1400 return aq_ret;1401}1402 1403/**1404 * i40e_sync_vfr_reset1405 * @hw: pointer to hw struct1406 * @vf_id: VF identifier1407 *1408 * Before trigger hardware reset, we need to know if no other process has1409 * reserved the hardware for any reset operations. This check is done by1410 * examining the status of the RSTAT1 register used to signal the reset.1411 **/1412static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)1413{1414 u32 reg;1415 int i;1416 1417 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {1418 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &1419 I40E_VFINT_ICR0_ADMINQ_MASK;1420 if (reg)1421 return 0;1422 1423 usleep_range(100, 200);1424 }1425 1426 return -EAGAIN;1427}1428 1429/**1430 * i40e_trigger_vf_reset1431 * @vf: pointer to the VF structure1432 * @flr: VFLR was issued or not1433 *1434 * Trigger hardware to start a reset for a particular VF. Expects the caller1435 * to wait the proper amount of time to allow hardware to reset the VF before1436 * it cleans up and restores VF functionality.1437 **/1438static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)1439{1440 struct i40e_pf *pf = vf->pf;1441 struct i40e_hw *hw = &pf->hw;1442 u32 reg, reg_idx, bit_idx;1443 bool vf_active;1444 u32 radq;1445 1446 /* warn the VF */1447 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);1448 1449 /* Disable VF's configuration API during reset. The flag is re-enabled1450 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.1451 * It's normally disabled in i40e_free_vf_res(), but it's safer1452 * to do it earlier to give some time to finish to any VF config1453 * functions that may still be running at this point.1454 */1455 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);1456 1457 /* In the case of a VFLR, the HW has already reset the VF and we1458 * just need to clean up, so don't hit the VFRTRIG register.1459 */1460 if (!flr) {1461 /* Sync VFR reset before trigger next one */1462 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &1463 I40E_VFINT_ICR0_ADMINQ_MASK;1464 if (vf_active && !radq)1465 /* waiting for finish reset by virtual driver */1466 if (i40e_sync_vfr_reset(hw, vf->vf_id))1467 dev_info(&pf->pdev->dev,1468 "Reset VF %d never finished\n",1469 vf->vf_id);1470 1471 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting1472 * in progress state in rstat1 register.1473 */1474 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));1475 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;1476 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);1477 i40e_flush(hw);1478 }1479 /* clear the VFLR bit in GLGEN_VFLRSTAT */1480 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;1481 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;1482 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));1483 i40e_flush(hw);1484 1485 if (i40e_quiesce_vf_pci(vf))1486 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",1487 vf->vf_id);1488}1489 1490/**1491 * i40e_cleanup_reset_vf1492 * @vf: pointer to the VF structure1493 *1494 * Cleanup a VF after the hardware reset is finished. Expects the caller to1495 * have verified whether the reset is finished properly, and ensure the1496 * minimum amount of wait time has passed.1497 **/1498static void i40e_cleanup_reset_vf(struct i40e_vf *vf)1499{1500 struct i40e_pf *pf = vf->pf;1501 struct i40e_hw *hw = &pf->hw;1502 u32 reg;1503 1504 /* disable promisc modes in case they were enabled */1505 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);1506 1507 /* free VF resources to begin resetting the VSI state */1508 i40e_free_vf_res(vf);1509 1510 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.1511 * By doing this we allow HW to access VF memory at any point. If we1512 * did it any sooner, HW could access memory while it was being freed1513 * in i40e_free_vf_res(), causing an IOMMU fault.1514 *1515 * On the other hand, this needs to be done ASAP, because the VF driver1516 * is waiting for this to happen and may report a timeout. It's1517 * harmless, but it gets logged into Guest OS kernel log, so best avoid1518 * it.1519 */1520 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));1521 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;1522 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);1523 1524 /* reallocate VF resources to finish resetting the VSI state */1525 if (!i40e_alloc_vf_res(vf)) {1526 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;1527 i40e_enable_vf_mappings(vf);1528 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);1529 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);1530 /* Do not notify the client during VF init */1531 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,1532 &vf->vf_states))1533 i40e_notify_client_of_vf_reset(pf, abs_vf_id);1534 vf->num_vlan = 0;1535 }1536 1537 /* Tell the VF driver the reset is done. This needs to be done only1538 * after VF has been fully initialized, because the VF driver may1539 * request resources immediately after setting this flag.1540 */1541 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);1542}1543 1544/**1545 * i40e_reset_vf1546 * @vf: pointer to the VF structure1547 * @flr: VFLR was issued or not1548 *1549 * Returns true if the VF is in reset, resets successfully, or resets1550 * are disabled and false otherwise.1551 **/1552bool i40e_reset_vf(struct i40e_vf *vf, bool flr)1553{1554 struct i40e_pf *pf = vf->pf;1555 struct i40e_hw *hw = &pf->hw;1556 bool rsd = false;1557 u32 reg;1558 int i;1559 1560 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))1561 return true;1562 1563 /* Bail out if VFs are disabled. */1564 if (test_bit(__I40E_VF_DISABLE, pf->state))1565 return true;1566 1567 /* If VF is being reset already we don't need to continue. */1568 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))1569 return true;1570 1571 i40e_trigger_vf_reset(vf, flr);1572 1573 /* poll VPGEN_VFRSTAT reg to make sure1574 * that reset is complete1575 */1576 for (i = 0; i < 10; i++) {1577 /* VF reset requires driver to first reset the VF and then1578 * poll the status register to make sure that the reset1579 * completed successfully. Due to internal HW FIFO flushes,1580 * we must wait 10ms before the register will be valid.1581 */1582 usleep_range(10000, 20000);1583 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));1584 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {1585 rsd = true;1586 break;1587 }1588 }1589 1590 if (flr)1591 usleep_range(10000, 20000);1592 1593 if (!rsd)1594 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",1595 vf->vf_id);1596 usleep_range(10000, 20000);1597 1598 /* On initial reset, we don't have any queues to disable */1599 if (vf->lan_vsi_idx != 0)1600 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);1601 1602 i40e_cleanup_reset_vf(vf);1603 1604 i40e_flush(hw);1605 usleep_range(20000, 40000);1606 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);1607 1608 return true;1609}1610 1611/**1612 * i40e_reset_all_vfs1613 * @pf: pointer to the PF structure1614 * @flr: VFLR was issued or not1615 *1616 * Reset all allocated VFs in one go. First, tell the hardware to reset each1617 * VF, then do all the waiting in one chunk, and finally finish restoring each1618 * VF after the wait. This is useful during PF routines which need to reset1619 * all VFs, as otherwise it must perform these resets in a serialized fashion.1620 *1621 * Returns true if any VFs were reset, and false otherwise.1622 **/1623bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)1624{1625 struct i40e_hw *hw = &pf->hw;1626 struct i40e_vf *vf;1627 u32 reg;1628 int i;1629 1630 /* If we don't have any VFs, then there is nothing to reset */1631 if (!pf->num_alloc_vfs)1632 return false;1633 1634 /* If VFs have been disabled, there is no need to reset */1635 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))1636 return false;1637 1638 /* Begin reset on all VFs at once */1639 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {1640 /* If VF is being reset no need to trigger reset again */1641 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))1642 i40e_trigger_vf_reset(vf, flr);1643 }1644 1645 /* HW requires some time to make sure it can flush the FIFO for a VF1646 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in1647 * sequence to make sure that it has completed. We'll keep track of1648 * the VFs using a simple iterator that increments once that VF has1649 * finished resetting.1650 */1651 for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) {1652 usleep_range(10000, 20000);1653 1654 /* Check each VF in sequence, beginning with the VF to fail1655 * the previous check.1656 */1657 while (vf < &pf->vf[pf->num_alloc_vfs]) {1658 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {1659 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));1660 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))1661 break;1662 }1663 1664 /* If the current VF has finished resetting, move on1665 * to the next VF in sequence.1666 */1667 ++vf;1668 }1669 }1670 1671 if (flr)1672 usleep_range(10000, 20000);1673 1674 /* Display a warning if at least one VF didn't manage to reset in1675 * time, but continue on with the operation.1676 */1677 if (vf < &pf->vf[pf->num_alloc_vfs])1678 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",1679 vf->vf_id);1680 usleep_range(10000, 20000);1681 1682 /* Begin disabling all the rings associated with VFs, but do not wait1683 * between each VF.1684 */1685 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {1686 /* On initial reset, we don't have any queues to disable */1687 if (vf->lan_vsi_idx == 0)1688 continue;1689 1690 /* If VF is reset in another thread just continue */1691 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))1692 continue;1693 1694 i40e_vsi_stop_rings_no_wait(pf->vsi[vf->lan_vsi_idx]);1695 }1696 1697 /* Now that we've notified HW to disable all of the VF rings, wait1698 * until they finish.1699 */1700 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {1701 /* On initial reset, we don't have any queues to disable */1702 if (vf->lan_vsi_idx == 0)1703 continue;1704 1705 /* If VF is reset in another thread just continue */1706 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))1707 continue;1708 1709 i40e_vsi_wait_queues_disabled(pf->vsi[vf->lan_vsi_idx]);1710 }1711 1712 /* Hw may need up to 50ms to finish disabling the RX queues. We1713 * minimize the wait by delaying only once for all VFs.1714 */1715 mdelay(50);1716 1717 /* Finish the reset on each VF */1718 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {1719 /* If VF is reset in another thread just continue */1720 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))1721 continue;1722 1723 i40e_cleanup_reset_vf(vf);1724 }1725 1726 i40e_flush(hw);1727 usleep_range(20000, 40000);1728 clear_bit(__I40E_VF_DISABLE, pf->state);1729 1730 return true;1731}1732 1733/**1734 * i40e_free_vfs1735 * @pf: pointer to the PF structure1736 *1737 * free VF resources1738 **/1739void i40e_free_vfs(struct i40e_pf *pf)1740{1741 struct i40e_hw *hw = &pf->hw;1742 u32 reg_idx, bit_idx;1743 int i, tmp, vf_id;1744 1745 if (!pf->vf)1746 return;1747 1748 set_bit(__I40E_VFS_RELEASING, pf->state);1749 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))1750 usleep_range(1000, 2000);1751 1752 i40e_notify_client_of_vf_enable(pf, 0);1753 1754 /* Disable IOV before freeing resources. This lets any VF drivers1755 * running in the host get themselves cleaned up before we yank1756 * the carpet out from underneath their feet.1757 */1758 if (!pci_vfs_assigned(pf->pdev))1759 pci_disable_sriov(pf->pdev);1760 else1761 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");1762 1763 /* Amortize wait time by stopping all VFs at the same time */1764 for (i = 0; i < pf->num_alloc_vfs; i++) {1765 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))1766 continue;1767 1768 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);1769 }1770 1771 for (i = 0; i < pf->num_alloc_vfs; i++) {1772 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))1773 continue;1774 1775 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);1776 }1777 1778 /* free up VF resources */1779 tmp = pf->num_alloc_vfs;1780 pf->num_alloc_vfs = 0;1781 for (i = 0; i < tmp; i++) {1782 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))1783 i40e_free_vf_res(&pf->vf[i]);1784 /* disable qp mappings */1785 i40e_disable_vf_mappings(&pf->vf[i]);1786 }1787 1788 kfree(pf->vf);1789 pf->vf = NULL;1790 1791 /* This check is for when the driver is unloaded while VFs are1792 * assigned. Setting the number of VFs to 0 through sysfs is caught1793 * before this function ever gets called.1794 */1795 if (!pci_vfs_assigned(pf->pdev)) {1796 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to1797 * work correctly when SR-IOV gets re-enabled.1798 */1799 for (vf_id = 0; vf_id < tmp; vf_id++) {1800 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;1801 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;1802 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));1803 }1804 }1805 clear_bit(__I40E_VF_DISABLE, pf->state);1806 clear_bit(__I40E_VFS_RELEASING, pf->state);1807}1808 1809#ifdef CONFIG_PCI_IOV1810/**1811 * i40e_alloc_vfs1812 * @pf: pointer to the PF structure1813 * @num_alloc_vfs: number of VFs to allocate1814 *1815 * allocate VF resources1816 **/1817int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)1818{1819 struct i40e_vf *vfs;1820 int i, ret = 0;1821 1822 /* Disable interrupt 0 so we don't try to handle the VFLR. */1823 i40e_irq_dynamic_disable_icr0(pf);1824 1825 /* Check to see if we're just allocating resources for extant VFs */1826 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {1827 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);1828 if (ret) {1829 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);1830 pf->num_alloc_vfs = 0;1831 goto err_iov;1832 }1833 }1834 /* allocate memory */1835 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);1836 if (!vfs) {1837 ret = -ENOMEM;1838 goto err_alloc;1839 }1840 pf->vf = vfs;1841 1842 /* apply default profile */1843 for (i = 0; i < num_alloc_vfs; i++) {1844 vfs[i].pf = pf;1845 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;1846 vfs[i].vf_id = i;1847 1848 /* assign default capabilities */1849 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);1850 vfs[i].spoofchk = true;1851 1852 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);1853 1854 }1855 pf->num_alloc_vfs = num_alloc_vfs;1856 1857 /* VF resources get allocated during reset */1858 i40e_reset_all_vfs(pf, false);1859 1860 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);1861 1862err_alloc:1863 if (ret)1864 i40e_free_vfs(pf);1865err_iov:1866 /* Re-enable interrupt 0. */1867 i40e_irq_dynamic_enable_icr0(pf);1868 return ret;1869}1870 1871#endif1872/**1873 * i40e_pci_sriov_enable1874 * @pdev: pointer to a pci_dev structure1875 * @num_vfs: number of VFs to allocate1876 *1877 * Enable or change the number of VFs1878 **/1879static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)1880{1881#ifdef CONFIG_PCI_IOV1882 struct i40e_pf *pf = pci_get_drvdata(pdev);1883 int pre_existing_vfs = pci_num_vf(pdev);1884 int err = 0;1885 1886 if (test_bit(__I40E_TESTING, pf->state)) {1887 dev_warn(&pdev->dev,1888 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");1889 err = -EPERM;1890 goto err_out;1891 }1892 1893 if (pre_existing_vfs && pre_existing_vfs != num_vfs)1894 i40e_free_vfs(pf);1895 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)1896 goto out;1897 1898 if (num_vfs > pf->num_req_vfs) {1899 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",1900 num_vfs, pf->num_req_vfs);1901 err = -EPERM;1902 goto err_out;1903 }1904 1905 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);1906 err = i40e_alloc_vfs(pf, num_vfs);1907 if (err) {1908 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);1909 goto err_out;1910 }1911 1912out:1913 return num_vfs;1914 1915err_out:1916 return err;1917#endif1918 return 0;1919}1920 1921/**1922 * i40e_pci_sriov_configure1923 * @pdev: pointer to a pci_dev structure1924 * @num_vfs: number of VFs to allocate1925 *1926 * Enable or change the number of VFs. Called when the user updates the number1927 * of VFs in sysfs.1928 **/1929int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)1930{1931 struct i40e_pf *pf = pci_get_drvdata(pdev);1932 int ret = 0;1933 1934 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {1935 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");1936 return -EAGAIN;1937 }1938 1939 if (num_vfs) {1940 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {1941 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);1942 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);1943 }1944 ret = i40e_pci_sriov_enable(pdev, num_vfs);1945 goto sriov_configure_out;1946 }1947 1948 if (!pci_vfs_assigned(pf->pdev)) {1949 i40e_free_vfs(pf);1950 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);1951 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);1952 } else {1953 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");1954 ret = -EINVAL;1955 goto sriov_configure_out;1956 }1957sriov_configure_out:1958 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);1959 return ret;1960}1961 1962/***********************virtual channel routines******************/1963 1964/**1965 * i40e_vc_send_msg_to_vf1966 * @vf: pointer to the VF info1967 * @v_opcode: virtual channel opcode1968 * @v_retval: virtual channel return value1969 * @msg: pointer to the msg buffer1970 * @msglen: msg length1971 *1972 * send msg to VF1973 **/1974static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,1975 u32 v_retval, u8 *msg, u16 msglen)1976{1977 struct i40e_pf *pf;1978 struct i40e_hw *hw;1979 int abs_vf_id;1980 int aq_ret;1981 1982 /* validate the request */1983 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)1984 return -EINVAL;1985 1986 pf = vf->pf;1987 hw = &pf->hw;1988 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;1989 1990 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,1991 msg, msglen, NULL);1992 if (aq_ret) {1993 dev_info(&pf->pdev->dev,1994 "Unable to send the message to VF %d aq_err %d\n",1995 vf->vf_id, pf->hw.aq.asq_last_status);1996 return -EIO;1997 }1998 1999 return 0;2000}2001 2002/**2003 * i40e_vc_send_resp_to_vf2004 * @vf: pointer to the VF info2005 * @opcode: operation code2006 * @retval: return value2007 *2008 * send resp msg to VF2009 **/2010static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,2011 enum virtchnl_ops opcode,2012 int retval)2013{2014 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);2015}2016 2017/**2018 * i40e_sync_vf_state2019 * @vf: pointer to the VF info2020 * @state: VF state2021 *2022 * Called from a VF message to synchronize the service with a potential2023 * VF reset state2024 **/2025static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)2026{2027 int i;2028 2029 /* When handling some messages, it needs VF state to be set.2030 * It is possible that this flag is cleared during VF reset,2031 * so there is a need to wait until the end of the reset to2032 * handle the request message correctly.2033 */2034 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {2035 if (test_bit(state, &vf->vf_states))2036 return true;2037 usleep_range(10000, 20000);2038 }2039 2040 return test_bit(state, &vf->vf_states);2041}2042 2043/**2044 * i40e_vc_get_version_msg2045 * @vf: pointer to the VF info2046 * @msg: pointer to the msg buffer2047 *2048 * called from the VF to request the API version used by the PF2049 **/2050static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)2051{2052 struct virtchnl_version_info info = {2053 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR2054 };2055 2056 vf->vf_ver = *(struct virtchnl_version_info *)msg;2057 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */2058 if (VF_IS_V10(&vf->vf_ver))2059 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;2060 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,2061 0, (u8 *)&info,2062 sizeof(struct virtchnl_version_info));2063}2064 2065/**2066 * i40e_del_qch - delete all the additional VSIs created as a part of ADq2067 * @vf: pointer to VF structure2068 **/2069static void i40e_del_qch(struct i40e_vf *vf)2070{2071 struct i40e_pf *pf = vf->pf;2072 int i;2073 2074 /* first element in the array belongs to primary VF VSI and we shouldn't2075 * delete it. We should however delete the rest of the VSIs created2076 */2077 for (i = 1; i < vf->num_tc; i++) {2078 if (vf->ch[i].vsi_idx) {2079 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);2080 vf->ch[i].vsi_idx = 0;2081 vf->ch[i].vsi_id = 0;2082 }2083 }2084}2085 2086/**2087 * i40e_vc_get_max_frame_size2088 * @vf: pointer to the VF2089 *2090 * Max frame size is determined based on the current port's max frame size and2091 * whether a port VLAN is configured on this VF. The VF is not aware whether2092 * it's in a port VLAN so the PF needs to account for this in max frame size2093 * checks and sending the max frame size to the VF.2094 **/2095static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)2096{2097 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;2098 2099 if (vf->port_vlan_id)2100 max_frame_size -= VLAN_HLEN;2101 2102 return max_frame_size;2103}2104 2105/**2106 * i40e_vc_get_vf_resources_msg2107 * @vf: pointer to the VF info2108 * @msg: pointer to the msg buffer2109 *2110 * called from the VF to request its resources2111 **/2112static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)2113{2114 struct virtchnl_vf_resource *vfres = NULL;2115 struct i40e_pf *pf = vf->pf;2116 struct i40e_vsi *vsi;2117 int num_vsis = 1;2118 int aq_ret = 0;2119 size_t len = 0;2120 int ret;2121 2122 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {2123 aq_ret = -EINVAL;2124 goto err;2125 }2126 2127 len = virtchnl_struct_size(vfres, vsi_res, num_vsis);2128 vfres = kzalloc(len, GFP_KERNEL);2129 if (!vfres) {2130 aq_ret = -ENOMEM;2131 len = 0;2132 goto err;2133 }2134 if (VF_IS_V11(&vf->vf_ver))2135 vf->driver_caps = *(u32 *)msg;2136 else2137 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |2138 VIRTCHNL_VF_OFFLOAD_RSS_REG |2139 VIRTCHNL_VF_OFFLOAD_VLAN;2140 2141 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;2142 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;2143 vsi = pf->vsi[vf->lan_vsi_idx];2144 if (!vsi->info.pvid)2145 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;2146 2147 if (i40e_vf_client_capable(pf, vf->vf_id) &&2148 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) {2149 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA;2150 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);2151 } else {2152 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);2153 }2154 2155 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {2156 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;2157 } else {2158 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&2159 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))2160 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;2161 else2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;2163 }2164 2165 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {2166 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)2167 vfres->vf_cap_flags |=2168 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;2169 }2170 2171 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)2172 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;2173 2174 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&2175 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))2176 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;2177 2178 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {2179 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {2180 dev_err(&pf->pdev->dev,2181 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",2182 vf->vf_id);2183 aq_ret = -EINVAL;2184 goto err;2185 }2186 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;2187 }2188 2189 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {2190 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)2191 vfres->vf_cap_flags |=2192 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;2193 }2194 2195 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)2196 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;2197 2198 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)2199 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;2200 2201 vfres->num_vsis = num_vsis;2202 vfres->num_queue_pairs = vf->num_queue_pairs;2203 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;2204 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;2205 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;2206 vfres->max_mtu = i40e_vc_get_max_frame_size(vf);2207 2208 if (vf->lan_vsi_idx) {2209 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;2210 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;2211 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;2212 /* VFs only use TC 0 */2213 vfres->vsi_res[0].qset_handle2214 = le16_to_cpu(vsi->info.qs_handle[0]);2215 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {2216 spin_lock_bh(&vsi->mac_filter_hash_lock);2217 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);2218 eth_zero_addr(vf->default_lan_addr.addr);2219 spin_unlock_bh(&vsi->mac_filter_hash_lock);2220 }2221 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,2222 vf->default_lan_addr.addr);2223 }2224 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);2225 2226err:2227 /* send the response back to the VF */2228 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,2229 aq_ret, (u8 *)vfres, len);2230 2231 kfree(vfres);2232 return ret;2233}2234 2235/**2236 * i40e_vc_config_promiscuous_mode_msg2237 * @vf: pointer to the VF info2238 * @msg: pointer to the msg buffer2239 *2240 * called from the VF to configure the promiscuous mode of2241 * VF vsis2242 **/2243static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)2244{2245 struct virtchnl_promisc_info *info =2246 (struct virtchnl_promisc_info *)msg;2247 struct i40e_pf *pf = vf->pf;2248 bool allmulti = false;2249 bool alluni = false;2250 int aq_ret = 0;2251 2252 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {2253 aq_ret = -EINVAL;2254 goto err_out;2255 }2256 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {2257 dev_err(&pf->pdev->dev,2258 "Unprivileged VF %d is attempting to configure promiscuous mode\n",2259 vf->vf_id);2260 2261 /* Lie to the VF on purpose, because this is an error we can2262 * ignore. Unprivileged VF is not a virtual channel error.2263 */2264 aq_ret = 0;2265 goto err_out;2266 }2267 2268 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {2269 aq_ret = -EINVAL;2270 goto err_out;2271 }2272 2273 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {2274 aq_ret = -EINVAL;2275 goto err_out;2276 }2277 2278 /* Multicast promiscuous handling*/2279 if (info->flags & FLAG_VF_MULTICAST_PROMISC)2280 allmulti = true;2281 2282 if (info->flags & FLAG_VF_UNICAST_PROMISC)2283 alluni = true;2284 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,2285 alluni);2286 if (aq_ret)2287 goto err_out;2288 2289 if (allmulti) {2290 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,2291 &vf->vf_states))2292 dev_info(&pf->pdev->dev,2293 "VF %d successfully set multicast promiscuous mode\n",2294 vf->vf_id);2295 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,2296 &vf->vf_states))2297 dev_info(&pf->pdev->dev,2298 "VF %d successfully unset multicast promiscuous mode\n",2299 vf->vf_id);2300 2301 if (alluni) {2302 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,2303 &vf->vf_states))2304 dev_info(&pf->pdev->dev,2305 "VF %d successfully set unicast promiscuous mode\n",2306 vf->vf_id);2307 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,2308 &vf->vf_states))2309 dev_info(&pf->pdev->dev,2310 "VF %d successfully unset unicast promiscuous mode\n",2311 vf->vf_id);2312 2313err_out:2314 /* send the response to the VF */2315 return i40e_vc_send_resp_to_vf(vf,2316 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,2317 aq_ret);2318}2319 2320/**2321 * i40e_vc_config_queues_msg2322 * @vf: pointer to the VF info2323 * @msg: pointer to the msg buffer2324 *2325 * called from the VF to configure the rx/tx2326 * queues2327 **/2328static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)2329{2330 struct virtchnl_vsi_queue_config_info *qci =2331 (struct virtchnl_vsi_queue_config_info *)msg;2332 struct virtchnl_queue_pair_info *qpi;2333 u16 vsi_id, vsi_queue_id = 0;2334 struct i40e_pf *pf = vf->pf;2335 int i, j = 0, idx = 0;2336 struct i40e_vsi *vsi;2337 u16 num_qps_all = 0;2338 int aq_ret = 0;2339 2340 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {2341 aq_ret = -EINVAL;2342 goto error_param;2343 }2344 2345 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {2346 aq_ret = -EINVAL;2347 goto error_param;2348 }2349 2350 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {2351 aq_ret = -EINVAL;2352 goto error_param;2353 }2354 2355 if (vf->adq_enabled) {2356 for (i = 0; i < vf->num_tc; i++)2357 num_qps_all += vf->ch[i].num_qps;2358 if (num_qps_all != qci->num_queue_pairs) {2359 aq_ret = -EINVAL;2360 goto error_param;2361 }2362 }2363 2364 vsi_id = qci->vsi_id;2365 2366 for (i = 0; i < qci->num_queue_pairs; i++) {2367 qpi = &qci->qpair[i];2368 2369 if (!vf->adq_enabled) {2370 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,2371 qpi->txq.queue_id)) {2372 aq_ret = -EINVAL;2373 goto error_param;2374 }2375 2376 vsi_queue_id = qpi->txq.queue_id;2377 2378 if (qpi->txq.vsi_id != qci->vsi_id ||2379 qpi->rxq.vsi_id != qci->vsi_id ||2380 qpi->rxq.queue_id != vsi_queue_id) {2381 aq_ret = -EINVAL;2382 goto error_param;2383 }2384 }2385 2386 if (vf->adq_enabled) {2387 if (idx >= ARRAY_SIZE(vf->ch)) {2388 aq_ret = -ENODEV;2389 goto error_param;2390 }2391 vsi_id = vf->ch[idx].vsi_id;2392 }2393 2394 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,2395 &qpi->rxq) ||2396 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,2397 &qpi->txq)) {2398 aq_ret = -EINVAL;2399 goto error_param;2400 }2401 2402 /* For ADq there can be up to 4 VSIs with max 4 queues each.2403 * VF does not know about these additional VSIs and all2404 * it cares is about its own queues. PF configures these queues2405 * to its appropriate VSIs based on TC mapping2406 */2407 if (vf->adq_enabled) {2408 if (idx >= ARRAY_SIZE(vf->ch)) {2409 aq_ret = -ENODEV;2410 goto error_param;2411 }2412 if (j == (vf->ch[idx].num_qps - 1)) {2413 idx++;2414 j = 0; /* resetting the queue count */2415 vsi_queue_id = 0;2416 } else {2417 j++;2418 vsi_queue_id++;2419 }2420 }2421 }2422 /* set vsi num_queue_pairs in use to num configured by VF */2423 if (!vf->adq_enabled) {2424 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =2425 qci->num_queue_pairs;2426 } else {2427 for (i = 0; i < vf->num_tc; i++) {2428 vsi = pf->vsi[vf->ch[i].vsi_idx];2429 vsi->num_queue_pairs = vf->ch[i].num_qps;2430 2431 if (i40e_update_adq_vsi_queues(vsi, i)) {2432 aq_ret = -EIO;2433 goto error_param;2434 }2435 }2436 }2437 2438error_param:2439 /* send the response to the VF */2440 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,2441 aq_ret);2442}2443 2444/**2445 * i40e_validate_queue_map - check queue map is valid2446 * @vf: the VF structure pointer2447 * @vsi_id: vsi id2448 * @queuemap: Tx or Rx queue map2449 *2450 * check if Tx or Rx queue map is valid2451 **/2452static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,2453 unsigned long queuemap)2454{2455 u16 vsi_queue_id, queue_id;2456 2457 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {2458 if (vf->adq_enabled) {2459 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;2460 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);2461 } else {2462 queue_id = vsi_queue_id;2463 }2464 2465 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))2466 return -EINVAL;2467 }2468 2469 return 0;2470}2471 2472/**2473 * i40e_vc_config_irq_map_msg2474 * @vf: pointer to the VF info2475 * @msg: pointer to the msg buffer2476 *2477 * called from the VF to configure the irq to2478 * queue map2479 **/2480static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)2481{2482 struct virtchnl_irq_map_info *irqmap_info =2483 (struct virtchnl_irq_map_info *)msg;2484 struct virtchnl_vector_map *map;2485 int aq_ret = 0;2486 u16 vsi_id;2487 int i;2488 2489 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {2490 aq_ret = -EINVAL;2491 goto error_param;2492 }2493 2494 if (irqmap_info->num_vectors >2495 vf->pf->hw.func_caps.num_msix_vectors_vf) {2496 aq_ret = -EINVAL;2497 goto error_param;2498 }2499 2500 for (i = 0; i < irqmap_info->num_vectors; i++) {2501 map = &irqmap_info->vecmap[i];2502 /* validate msg params */2503 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||2504 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {2505 aq_ret = -EINVAL;2506 goto error_param;2507 }2508 vsi_id = map->vsi_id;2509 2510 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {2511 aq_ret = -EINVAL;2512 goto error_param;2513 }2514 2515 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {2516 aq_ret = -EINVAL;2517 goto error_param;2518 }2519 2520 i40e_config_irq_link_list(vf, vsi_id, map);2521 }2522error_param:2523 /* send the response to the VF */2524 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,2525 aq_ret);2526}2527 2528/**2529 * i40e_ctrl_vf_tx_rings2530 * @vsi: the SRIOV VSI being configured2531 * @q_map: bit map of the queues to be enabled2532 * @enable: start or stop the queue2533 **/2534static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,2535 bool enable)2536{2537 struct i40e_pf *pf = vsi->back;2538 int ret = 0;2539 u16 q_id;2540 2541 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {2542 ret = i40e_control_wait_tx_q(vsi->seid, pf,2543 vsi->base_queue + q_id,2544 false /*is xdp*/, enable);2545 if (ret)2546 break;2547 }2548 return ret;2549}2550 2551/**2552 * i40e_ctrl_vf_rx_rings2553 * @vsi: the SRIOV VSI being configured2554 * @q_map: bit map of the queues to be enabled2555 * @enable: start or stop the queue2556 **/2557static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,2558 bool enable)2559{2560 struct i40e_pf *pf = vsi->back;2561 int ret = 0;2562 u16 q_id;2563 2564 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {2565 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,2566 enable);2567 if (ret)2568 break;2569 }2570 return ret;2571}2572 2573/**2574 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL2575 * @vqs: virtchnl_queue_select structure containing bitmaps to validate2576 *2577 * Returns true if validation was successful, else false.2578 */2579static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)2580{2581 if ((!vqs->rx_queues && !vqs->tx_queues) ||2582 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||2583 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))2584 return false;2585 2586 return true;2587}2588 2589/**2590 * i40e_vc_enable_queues_msg2591 * @vf: pointer to the VF info2592 * @msg: pointer to the msg buffer2593 *2594 * called from the VF to enable all or specific queue(s)2595 **/2596static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)2597{2598 struct virtchnl_queue_select *vqs =2599 (struct virtchnl_queue_select *)msg;2600 struct i40e_pf *pf = vf->pf;2601 int aq_ret = 0;2602 int i;2603 2604 if (vf->is_disabled_from_host) {2605 aq_ret = -EPERM;2606 dev_info(&pf->pdev->dev,2607 "Admin has disabled VF %d, will not enable queues\n",2608 vf->vf_id);2609 goto error_param;2610 }2611 2612 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {2613 aq_ret = -EINVAL;2614 goto error_param;2615 }2616 2617 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {2618 aq_ret = -EINVAL;2619 goto error_param;2620 }2621 2622 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {2623 aq_ret = -EINVAL;2624 goto error_param;2625 }2626 2627 /* Use the queue bit map sent by the VF */2628 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,2629 true)) {2630 aq_ret = -EIO;2631 goto error_param;2632 }2633 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,2634 true)) {2635 aq_ret = -EIO;2636 goto error_param;2637 }2638 2639 /* need to start the rings for additional ADq VSI's as well */2640 if (vf->adq_enabled) {2641 /* zero belongs to LAN VSI */2642 for (i = 1; i < vf->num_tc; i++) {2643 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))2644 aq_ret = -EIO;2645 }2646 }2647 2648error_param:2649 /* send the response to the VF */2650 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,2651 aq_ret);2652}2653 2654/**2655 * i40e_vc_disable_queues_msg2656 * @vf: pointer to the VF info2657 * @msg: pointer to the msg buffer2658 *2659 * called from the VF to disable all or specific2660 * queue(s)2661 **/2662static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)2663{2664 struct virtchnl_queue_select *vqs =2665 (struct virtchnl_queue_select *)msg;2666 struct i40e_pf *pf = vf->pf;2667 int aq_ret = 0;2668 2669 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {2670 aq_ret = -EINVAL;2671 goto error_param;2672 }2673 2674 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {2675 aq_ret = -EINVAL;2676 goto error_param;2677 }2678 2679 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {2680 aq_ret = -EINVAL;2681 goto error_param;2682 }2683 2684 /* Use the queue bit map sent by the VF */2685 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,2686 false)) {2687 aq_ret = -EIO;2688 goto error_param;2689 }2690 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,2691 false)) {2692 aq_ret = -EIO;2693 goto error_param;2694 }2695error_param:2696 /* send the response to the VF */2697 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,2698 aq_ret);2699}2700 2701/**2702 * i40e_check_enough_queue - find big enough queue number2703 * @vf: pointer to the VF info2704 * @needed: the number of items needed2705 *2706 * Returns the base item index of the queue, or negative for error2707 **/2708static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)2709{2710 unsigned int i, cur_queues, more, pool_size;2711 struct i40e_lump_tracking *pile;2712 struct i40e_pf *pf = vf->pf;2713 struct i40e_vsi *vsi;2714 2715 vsi = pf->vsi[vf->lan_vsi_idx];2716 cur_queues = vsi->alloc_queue_pairs;2717 2718 /* if current allocated queues are enough for need */2719 if (cur_queues >= needed)2720 return vsi->base_queue;2721 2722 pile = pf->qp_pile;2723 if (cur_queues > 0) {2724 /* if the allocated queues are not zero2725 * just check if there are enough queues for more2726 * behind the allocated queues.2727 */2728 more = needed - cur_queues;2729 for (i = vsi->base_queue + cur_queues;2730 i < pile->num_entries; i++) {2731 if (pile->list[i] & I40E_PILE_VALID_BIT)2732 break;2733 2734 if (more-- == 1)2735 /* there is enough */2736 return vsi->base_queue;2737 }2738 }2739 2740 pool_size = 0;2741 for (i = 0; i < pile->num_entries; i++) {2742 if (pile->list[i] & I40E_PILE_VALID_BIT) {2743 pool_size = 0;2744 continue;2745 }2746 if (needed <= ++pool_size)2747 /* there is enough */2748 return i;2749 }2750 2751 return -ENOMEM;2752}2753 2754/**2755 * i40e_vc_request_queues_msg2756 * @vf: pointer to the VF info2757 * @msg: pointer to the msg buffer2758 *2759 * VFs get a default number of queues but can use this message to request a2760 * different number. If the request is successful, PF will reset the VF and2761 * return 0. If unsuccessful, PF will send message informing VF of number of2762 * available queues and return result of sending VF a message.2763 **/2764static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)2765{2766 struct virtchnl_vf_res_request *vfres =2767 (struct virtchnl_vf_res_request *)msg;2768 u16 req_pairs = vfres->num_queue_pairs;2769 u8 cur_pairs = vf->num_queue_pairs;2770 struct i40e_pf *pf = vf->pf;2771 2772 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))2773 return -EINVAL;2774 2775 if (req_pairs > I40E_MAX_VF_QUEUES) {2776 dev_err(&pf->pdev->dev,2777 "VF %d tried to request more than %d queues.\n",2778 vf->vf_id,2779 I40E_MAX_VF_QUEUES);2780 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;2781 } else if (req_pairs - cur_pairs > pf->queues_left) {2782 dev_warn(&pf->pdev->dev,2783 "VF %d requested %d more queues, but only %d left.\n",2784 vf->vf_id,2785 req_pairs - cur_pairs,2786 pf->queues_left);2787 vfres->num_queue_pairs = pf->queues_left + cur_pairs;2788 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {2789 dev_warn(&pf->pdev->dev,2790 "VF %d requested %d more queues, but there is not enough for it.\n",2791 vf->vf_id,2792 req_pairs - cur_pairs);2793 vfres->num_queue_pairs = cur_pairs;2794 } else {2795 /* successful request */2796 vf->num_req_queues = req_pairs;2797 i40e_vc_reset_vf(vf, true);2798 return 0;2799 }2800 2801 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,2802 (u8 *)vfres, sizeof(*vfres));2803}2804 2805/**2806 * i40e_vc_get_stats_msg2807 * @vf: pointer to the VF info2808 * @msg: pointer to the msg buffer2809 *2810 * called from the VF to get vsi stats2811 **/2812static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)2813{2814 struct virtchnl_queue_select *vqs =2815 (struct virtchnl_queue_select *)msg;2816 struct i40e_pf *pf = vf->pf;2817 struct i40e_eth_stats stats;2818 int aq_ret = 0;2819 struct i40e_vsi *vsi;2820 2821 memset(&stats, 0, sizeof(struct i40e_eth_stats));2822 2823 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {2824 aq_ret = -EINVAL;2825 goto error_param;2826 }2827 2828 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {2829 aq_ret = -EINVAL;2830 goto error_param;2831 }2832 2833 vsi = pf->vsi[vf->lan_vsi_idx];2834 if (!vsi) {2835 aq_ret = -EINVAL;2836 goto error_param;2837 }2838 i40e_update_eth_stats(vsi);2839 stats = vsi->eth_stats;2840 2841error_param:2842 /* send the response back to the VF */2843 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,2844 (u8 *)&stats, sizeof(stats));2845}2846 2847/**2848 * i40e_can_vf_change_mac2849 * @vf: pointer to the VF info2850 *2851 * Return true if the VF is allowed to change its MAC filters, false otherwise2852 */2853static bool i40e_can_vf_change_mac(struct i40e_vf *vf)2854{2855 /* If the VF MAC address has been set administratively (via the2856 * ndo_set_vf_mac command), then deny permission to the VF to2857 * add/delete unicast MAC addresses, unless the VF is trusted2858 */2859 if (vf->pf_set_mac && !vf->trusted)2860 return false;2861 2862 return true;2863}2864 2865#define I40E_MAX_MACVLAN_PER_HW 30722866#define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \2867 (num_ports))2868/* If the VF is not trusted restrict the number of MAC/VLAN it can program2869 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast2870 */2871#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)2872#define I40E_VC_MAX_VLAN_PER_VF 162873 2874#define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \2875({ typeof(vf_num) vf_num_ = (vf_num); \2876 typeof(num_ports) num_ports_ = (num_ports); \2877 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \2878 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \2879 I40E_VC_MAX_MAC_ADDR_PER_VF; })2880/**2881 * i40e_check_vf_permission2882 * @vf: pointer to the VF info2883 * @al: MAC address list from virtchnl2884 *2885 * Check that the given list of MAC addresses is allowed. Will return -EPERM2886 * if any address in the list is not valid. Checks the following conditions:2887 *2888 * 1) broadcast and zero addresses are never valid2889 * 2) unicast addresses are not allowed if the VMM has administratively set2890 * the VF MAC address, unless the VF is marked as privileged.2891 * 3) There is enough space to add all the addresses.2892 *2893 * Note that to guarantee consistency, it is expected this function be called2894 * while holding the mac_filter_hash_lock, as otherwise the current number of2895 * addresses might not be accurate.2896 **/2897static inline int i40e_check_vf_permission(struct i40e_vf *vf,2898 struct virtchnl_ether_addr_list *al)2899{2900 struct i40e_pf *pf = vf->pf;2901 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];2902 struct i40e_hw *hw = &pf->hw;2903 int mac2add_cnt = 0;2904 int i;2905 2906 for (i = 0; i < al->num_elements; i++) {2907 struct i40e_mac_filter *f;2908 u8 *addr = al->list[i].addr;2909 2910 if (is_broadcast_ether_addr(addr) ||2911 is_zero_ether_addr(addr)) {2912 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",2913 addr);2914 return -EINVAL;2915 }2916 2917 /* If the host VMM administrator has set the VF MAC address2918 * administratively via the ndo_set_vf_mac command then deny2919 * permission to the VF to add or delete unicast MAC addresses.2920 * Unless the VF is privileged and then it can do whatever.2921 * The VF may request to set the MAC address filter already2922 * assigned to it so do not return an error in that case.2923 */2924 if (!i40e_can_vf_change_mac(vf) &&2925 !is_multicast_ether_addr(addr) &&2926 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {2927 dev_err(&pf->pdev->dev,2928 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");2929 return -EPERM;2930 }2931 2932 /*count filters that really will be added*/2933 f = i40e_find_mac(vsi, addr);2934 if (!f)2935 ++mac2add_cnt;2936 }2937 2938 /* If this VF is not privileged, then we can't add more than a limited2939 * number of addresses. Check to make sure that the additions do not2940 * push us over the limit.2941 */2942 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {2943 if ((i40e_count_filters(vsi) + mac2add_cnt) >2944 I40E_VC_MAX_MAC_ADDR_PER_VF) {2945 dev_err(&pf->pdev->dev,2946 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");2947 return -EPERM;2948 }2949 /* If this VF is trusted, it can use more resources than untrusted.2950 * However to ensure that every trusted VF has appropriate number of2951 * resources, divide whole pool of resources per port and then across2952 * all VFs.2953 */2954 } else {2955 if ((i40e_count_filters(vsi) + mac2add_cnt) >2956 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,2957 hw->num_ports)) {2958 dev_err(&pf->pdev->dev,2959 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");2960 return -EPERM;2961 }2962 }2963 return 0;2964}2965 2966/**2967 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr2968 * @vc_ether_addr: used to extract the type2969 **/2970static u82971i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)2972{2973 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;2974}2975 2976/**2977 * i40e_is_vc_addr_legacy2978 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type2979 *2980 * check if the MAC address is from an older VF2981 **/2982static bool2983i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)2984{2985 return i40e_vc_ether_addr_type(vc_ether_addr) ==2986 VIRTCHNL_ETHER_ADDR_LEGACY;2987}2988 2989/**2990 * i40e_is_vc_addr_primary2991 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type2992 *2993 * check if the MAC address is the VF's primary MAC2994 * This function should only be called when the MAC address in2995 * virtchnl_ether_addr is a valid unicast MAC2996 **/2997static bool2998i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)2999{3000 return i40e_vc_ether_addr_type(vc_ether_addr) ==3001 VIRTCHNL_ETHER_ADDR_PRIMARY;3002}3003 3004/**3005 * i40e_update_vf_mac_addr3006 * @vf: VF to update3007 * @vc_ether_addr: structure from VIRTCHNL with MAC to add3008 *3009 * update the VF's cached hardware MAC if allowed3010 **/3011static void3012i40e_update_vf_mac_addr(struct i40e_vf *vf,3013 struct virtchnl_ether_addr *vc_ether_addr)3014{3015 u8 *mac_addr = vc_ether_addr->addr;3016 3017 if (!is_valid_ether_addr(mac_addr))3018 return;3019 3020 /* If request to add MAC filter is a primary request update its default3021 * MAC address with the requested one. If it is a legacy request then3022 * check if current default is empty if so update the default MAC3023 */3024 if (i40e_is_vc_addr_primary(vc_ether_addr)) {3025 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);3026 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) {3027 if (is_zero_ether_addr(vf->default_lan_addr.addr))3028 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);3029 }3030}3031 3032/**3033 * i40e_vc_add_mac_addr_msg3034 * @vf: pointer to the VF info3035 * @msg: pointer to the msg buffer3036 *3037 * add guest mac address filter3038 **/3039static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)3040{3041 struct virtchnl_ether_addr_list *al =3042 (struct virtchnl_ether_addr_list *)msg;3043 struct i40e_pf *pf = vf->pf;3044 struct i40e_vsi *vsi = NULL;3045 int ret = 0;3046 int i;3047 3048 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||3049 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {3050 ret = -EINVAL;3051 goto error_param;3052 }3053 3054 vsi = pf->vsi[vf->lan_vsi_idx];3055 3056 /* Lock once, because all function inside for loop accesses VSI's3057 * MAC filter list which needs to be protected using same lock.3058 */3059 spin_lock_bh(&vsi->mac_filter_hash_lock);3060 3061 ret = i40e_check_vf_permission(vf, al);3062 if (ret) {3063 spin_unlock_bh(&vsi->mac_filter_hash_lock);3064 goto error_param;3065 }3066 3067 /* add new addresses to the list */3068 for (i = 0; i < al->num_elements; i++) {3069 struct i40e_mac_filter *f;3070 3071 f = i40e_find_mac(vsi, al->list[i].addr);3072 if (!f) {3073 f = i40e_add_mac_filter(vsi, al->list[i].addr);3074 3075 if (!f) {3076 dev_err(&pf->pdev->dev,3077 "Unable to add MAC filter %pM for VF %d\n",3078 al->list[i].addr, vf->vf_id);3079 ret = -EINVAL;3080 spin_unlock_bh(&vsi->mac_filter_hash_lock);3081 goto error_param;3082 }3083 }3084 i40e_update_vf_mac_addr(vf, &al->list[i]);3085 }3086 spin_unlock_bh(&vsi->mac_filter_hash_lock);3087 3088 /* program the updated filter list */3089 ret = i40e_sync_vsi_filters(vsi);3090 if (ret)3091 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",3092 vf->vf_id, ret);3093 3094error_param:3095 /* send the response to the VF */3096 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,3097 ret, NULL, 0);3098}3099 3100/**3101 * i40e_vc_del_mac_addr_msg3102 * @vf: pointer to the VF info3103 * @msg: pointer to the msg buffer3104 *3105 * remove guest mac address filter3106 **/3107static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)3108{3109 struct virtchnl_ether_addr_list *al =3110 (struct virtchnl_ether_addr_list *)msg;3111 bool was_unimac_deleted = false;3112 struct i40e_pf *pf = vf->pf;3113 struct i40e_vsi *vsi = NULL;3114 int ret = 0;3115 int i;3116 3117 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||3118 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {3119 ret = -EINVAL;3120 goto error_param;3121 }3122 3123 for (i = 0; i < al->num_elements; i++) {3124 if (is_broadcast_ether_addr(al->list[i].addr) ||3125 is_zero_ether_addr(al->list[i].addr)) {3126 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",3127 al->list[i].addr, vf->vf_id);3128 ret = -EINVAL;3129 goto error_param;3130 }3131 }3132 vsi = pf->vsi[vf->lan_vsi_idx];3133 3134 spin_lock_bh(&vsi->mac_filter_hash_lock);3135 /* delete addresses from the list */3136 for (i = 0; i < al->num_elements; i++) {3137 const u8 *addr = al->list[i].addr;3138 3139 /* Allow to delete VF primary MAC only if it was not set3140 * administratively by PF or if VF is trusted.3141 */3142 if (ether_addr_equal(addr, vf->default_lan_addr.addr)) {3143 if (i40e_can_vf_change_mac(vf))3144 was_unimac_deleted = true;3145 else3146 continue;3147 }3148 3149 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {3150 ret = -EINVAL;3151 spin_unlock_bh(&vsi->mac_filter_hash_lock);3152 goto error_param;3153 }3154 }3155 3156 spin_unlock_bh(&vsi->mac_filter_hash_lock);3157 3158 if (was_unimac_deleted)3159 eth_zero_addr(vf->default_lan_addr.addr);3160 3161 /* program the updated filter list */3162 ret = i40e_sync_vsi_filters(vsi);3163 if (ret)3164 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",3165 vf->vf_id, ret);3166 3167 if (vf->trusted && was_unimac_deleted) {3168 struct i40e_mac_filter *f;3169 struct hlist_node *h;3170 u8 *macaddr = NULL;3171 int bkt;3172 3173 /* set last unicast mac address as default */3174 spin_lock_bh(&vsi->mac_filter_hash_lock);3175 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {3176 if (is_valid_ether_addr(f->macaddr))3177 macaddr = f->macaddr;3178 }3179 if (macaddr)3180 ether_addr_copy(vf->default_lan_addr.addr, macaddr);3181 spin_unlock_bh(&vsi->mac_filter_hash_lock);3182 }3183error_param:3184 /* send the response to the VF */3185 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);3186}3187 3188/**3189 * i40e_vc_add_vlan_msg3190 * @vf: pointer to the VF info3191 * @msg: pointer to the msg buffer3192 *3193 * program guest vlan id3194 **/3195static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)3196{3197 struct virtchnl_vlan_filter_list *vfl =3198 (struct virtchnl_vlan_filter_list *)msg;3199 struct i40e_pf *pf = vf->pf;3200 struct i40e_vsi *vsi = NULL;3201 int aq_ret = 0;3202 int i;3203 3204 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&3205 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {3206 dev_err(&pf->pdev->dev,3207 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");3208 goto error_param;3209 }3210 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||3211 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {3212 aq_ret = -EINVAL;3213 goto error_param;3214 }3215 3216 for (i = 0; i < vfl->num_elements; i++) {3217 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {3218 aq_ret = -EINVAL;3219 dev_err(&pf->pdev->dev,3220 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);3221 goto error_param;3222 }3223 }3224 vsi = pf->vsi[vf->lan_vsi_idx];3225 if (vsi->info.pvid) {3226 aq_ret = -EINVAL;3227 goto error_param;3228 }3229 3230 i40e_vlan_stripping_enable(vsi);3231 for (i = 0; i < vfl->num_elements; i++) {3232 /* add new VLAN filter */3233 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);3234 if (!ret)3235 vf->num_vlan++;3236 3237 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))3238 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,3239 true,3240 vfl->vlan_id[i],3241 NULL);3242 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))3243 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,3244 true,3245 vfl->vlan_id[i],3246 NULL);3247 3248 if (ret)3249 dev_err(&pf->pdev->dev,3250 "Unable to add VLAN filter %d for VF %d, error %d\n",3251 vfl->vlan_id[i], vf->vf_id, ret);3252 }3253 3254error_param:3255 /* send the response to the VF */3256 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);3257}3258 3259/**3260 * i40e_vc_remove_vlan_msg3261 * @vf: pointer to the VF info3262 * @msg: pointer to the msg buffer3263 *3264 * remove programmed guest vlan id3265 **/3266static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)3267{3268 struct virtchnl_vlan_filter_list *vfl =3269 (struct virtchnl_vlan_filter_list *)msg;3270 struct i40e_pf *pf = vf->pf;3271 struct i40e_vsi *vsi = NULL;3272 int aq_ret = 0;3273 int i;3274 3275 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||3276 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {3277 aq_ret = -EINVAL;3278 goto error_param;3279 }3280 3281 for (i = 0; i < vfl->num_elements; i++) {3282 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {3283 aq_ret = -EINVAL;3284 goto error_param;3285 }3286 }3287 3288 vsi = pf->vsi[vf->lan_vsi_idx];3289 if (vsi->info.pvid) {3290 if (vfl->num_elements > 1 || vfl->vlan_id[0])3291 aq_ret = -EINVAL;3292 goto error_param;3293 }3294 3295 for (i = 0; i < vfl->num_elements; i++) {3296 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);3297 vf->num_vlan--;3298 3299 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))3300 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,3301 false,3302 vfl->vlan_id[i],3303 NULL);3304 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))3305 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,3306 false,3307 vfl->vlan_id[i],3308 NULL);3309 }3310 3311error_param:3312 /* send the response to the VF */3313 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);3314}3315 3316/**3317 * i40e_vc_rdma_msg3318 * @vf: pointer to the VF info3319 * @msg: pointer to the msg buffer3320 * @msglen: msg length3321 *3322 * called from the VF for the iwarp msgs3323 **/3324static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)3325{3326 struct i40e_pf *pf = vf->pf;3327 struct i40e_vsi *main_vsi;3328 int aq_ret = 0;3329 int abs_vf_id;3330 3331 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||3332 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {3333 aq_ret = -EINVAL;3334 goto error_param;3335 }3336 3337 main_vsi = i40e_pf_get_main_vsi(pf);3338 abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;3339 i40e_notify_client_of_vf_msg(main_vsi, abs_vf_id, msg, msglen);3340 3341error_param:3342 /* send the response to the VF */3343 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA,3344 aq_ret);3345}3346 3347/**3348 * i40e_vc_rdma_qvmap_msg3349 * @vf: pointer to the VF info3350 * @msg: pointer to the msg buffer3351 * @config: config qvmap or release it3352 *3353 * called from the VF for the iwarp msgs3354 **/3355static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)3356{3357 struct virtchnl_rdma_qvlist_info *qvlist_info =3358 (struct virtchnl_rdma_qvlist_info *)msg;3359 int aq_ret = 0;3360 3361 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||3362 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {3363 aq_ret = -EINVAL;3364 goto error_param;3365 }3366 3367 if (config) {3368 if (i40e_config_rdma_qvlist(vf, qvlist_info))3369 aq_ret = -EINVAL;3370 } else {3371 i40e_release_rdma_qvlist(vf);3372 }3373 3374error_param:3375 /* send the response to the VF */3376 return i40e_vc_send_resp_to_vf(vf,3377 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP :3378 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP,3379 aq_ret);3380}3381 3382/**3383 * i40e_vc_config_rss_key3384 * @vf: pointer to the VF info3385 * @msg: pointer to the msg buffer3386 *3387 * Configure the VF's RSS key3388 **/3389static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)3390{3391 struct virtchnl_rss_key *vrk =3392 (struct virtchnl_rss_key *)msg;3393 struct i40e_pf *pf = vf->pf;3394 struct i40e_vsi *vsi = NULL;3395 int aq_ret = 0;3396 3397 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||3398 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||3399 vrk->key_len != I40E_HKEY_ARRAY_SIZE) {3400 aq_ret = -EINVAL;3401 goto err;3402 }3403 3404 vsi = pf->vsi[vf->lan_vsi_idx];3405 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);3406err:3407 /* send the response to the VF */3408 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,3409 aq_ret);3410}3411 3412/**3413 * i40e_vc_config_rss_lut3414 * @vf: pointer to the VF info3415 * @msg: pointer to the msg buffer3416 *3417 * Configure the VF's RSS LUT3418 **/3419static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)3420{3421 struct virtchnl_rss_lut *vrl =3422 (struct virtchnl_rss_lut *)msg;3423 struct i40e_pf *pf = vf->pf;3424 struct i40e_vsi *vsi = NULL;3425 int aq_ret = 0;3426 u16 i;3427 3428 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||3429 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||3430 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {3431 aq_ret = -EINVAL;3432 goto err;3433 }3434 3435 for (i = 0; i < vrl->lut_entries; i++)3436 if (vrl->lut[i] >= vf->num_queue_pairs) {3437 aq_ret = -EINVAL;3438 goto err;3439 }3440 3441 vsi = pf->vsi[vf->lan_vsi_idx];3442 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);3443 /* send the response to the VF */3444err:3445 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,3446 aq_ret);3447}3448 3449/**3450 * i40e_vc_get_rss_hena3451 * @vf: pointer to the VF info3452 * @msg: pointer to the msg buffer3453 *3454 * Return the RSS HENA bits allowed by the hardware3455 **/3456static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)3457{3458 struct virtchnl_rss_hena *vrh = NULL;3459 struct i40e_pf *pf = vf->pf;3460 int aq_ret = 0;3461 int len = 0;3462 3463 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3464 aq_ret = -EINVAL;3465 goto err;3466 }3467 len = sizeof(struct virtchnl_rss_hena);3468 3469 vrh = kzalloc(len, GFP_KERNEL);3470 if (!vrh) {3471 aq_ret = -ENOMEM;3472 len = 0;3473 goto err;3474 }3475 vrh->hena = i40e_pf_get_default_rss_hena(pf);3476err:3477 /* send the response back to the VF */3478 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,3479 aq_ret, (u8 *)vrh, len);3480 kfree(vrh);3481 return aq_ret;3482}3483 3484/**3485 * i40e_vc_set_rss_hena3486 * @vf: pointer to the VF info3487 * @msg: pointer to the msg buffer3488 *3489 * Set the RSS HENA bits for the VF3490 **/3491static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)3492{3493 struct virtchnl_rss_hena *vrh =3494 (struct virtchnl_rss_hena *)msg;3495 struct i40e_pf *pf = vf->pf;3496 struct i40e_hw *hw = &pf->hw;3497 int aq_ret = 0;3498 3499 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3500 aq_ret = -EINVAL;3501 goto err;3502 }3503 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);3504 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),3505 (u32)(vrh->hena >> 32));3506 3507 /* send the response to the VF */3508err:3509 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);3510}3511 3512/**3513 * i40e_vc_enable_vlan_stripping3514 * @vf: pointer to the VF info3515 * @msg: pointer to the msg buffer3516 *3517 * Enable vlan header stripping for the VF3518 **/3519static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)3520{3521 struct i40e_vsi *vsi;3522 int aq_ret = 0;3523 3524 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3525 aq_ret = -EINVAL;3526 goto err;3527 }3528 3529 vsi = vf->pf->vsi[vf->lan_vsi_idx];3530 i40e_vlan_stripping_enable(vsi);3531 3532 /* send the response to the VF */3533err:3534 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,3535 aq_ret);3536}3537 3538/**3539 * i40e_vc_disable_vlan_stripping3540 * @vf: pointer to the VF info3541 * @msg: pointer to the msg buffer3542 *3543 * Disable vlan header stripping for the VF3544 **/3545static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)3546{3547 struct i40e_vsi *vsi;3548 int aq_ret = 0;3549 3550 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3551 aq_ret = -EINVAL;3552 goto err;3553 }3554 3555 vsi = vf->pf->vsi[vf->lan_vsi_idx];3556 i40e_vlan_stripping_disable(vsi);3557 3558 /* send the response to the VF */3559err:3560 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,3561 aq_ret);3562}3563 3564/**3565 * i40e_validate_cloud_filter3566 * @vf: pointer to VF structure3567 * @tc_filter: pointer to filter requested3568 *3569 * This function validates cloud filter programmed as TC filter for ADq3570 **/3571static int i40e_validate_cloud_filter(struct i40e_vf *vf,3572 struct virtchnl_filter *tc_filter)3573{3574 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;3575 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;3576 struct i40e_pf *pf = vf->pf;3577 struct i40e_vsi *vsi = NULL;3578 struct i40e_mac_filter *f;3579 struct hlist_node *h;3580 bool found = false;3581 int bkt;3582 3583 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {3584 dev_info(&pf->pdev->dev,3585 "VF %d: ADQ doesn't support this action (%d)\n",3586 vf->vf_id, tc_filter->action);3587 goto err;3588 }3589 3590 /* action_meta is TC number here to which the filter is applied */3591 if (!tc_filter->action_meta ||3592 tc_filter->action_meta > vf->num_tc) {3593 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",3594 vf->vf_id, tc_filter->action_meta);3595 goto err;3596 }3597 3598 /* Check filter if it's programmed for advanced mode or basic mode.3599 * There are two ADq modes (for VF only),3600 * 1. Basic mode: intended to allow as many filter options as possible3601 * to be added to a VF in Non-trusted mode. Main goal is3602 * to add filters to its own MAC and VLAN id.3603 * 2. Advanced mode: is for allowing filters to be applied other than3604 * its own MAC or VLAN. This mode requires the VF to be3605 * Trusted.3606 */3607 if (mask.dst_mac[0] && !mask.dst_ip[0]) {3608 vsi = pf->vsi[vf->lan_vsi_idx];3609 f = i40e_find_mac(vsi, data.dst_mac);3610 3611 if (!f) {3612 dev_info(&pf->pdev->dev,3613 "Destination MAC %pM doesn't belong to VF %d\n",3614 data.dst_mac, vf->vf_id);3615 goto err;3616 }3617 3618 if (mask.vlan_id) {3619 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,3620 hlist) {3621 if (f->vlan == ntohs(data.vlan_id)) {3622 found = true;3623 break;3624 }3625 }3626 if (!found) {3627 dev_info(&pf->pdev->dev,3628 "VF %d doesn't have any VLAN id %u\n",3629 vf->vf_id, ntohs(data.vlan_id));3630 goto err;3631 }3632 }3633 } else {3634 /* Check if VF is trusted */3635 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {3636 dev_err(&pf->pdev->dev,3637 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",3638 vf->vf_id);3639 return -EIO;3640 }3641 }3642 3643 if (mask.dst_mac[0] & data.dst_mac[0]) {3644 if (is_broadcast_ether_addr(data.dst_mac) ||3645 is_zero_ether_addr(data.dst_mac)) {3646 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",3647 vf->vf_id, data.dst_mac);3648 goto err;3649 }3650 }3651 3652 if (mask.src_mac[0] & data.src_mac[0]) {3653 if (is_broadcast_ether_addr(data.src_mac) ||3654 is_zero_ether_addr(data.src_mac)) {3655 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",3656 vf->vf_id, data.src_mac);3657 goto err;3658 }3659 }3660 3661 if (mask.dst_port & data.dst_port) {3662 if (!data.dst_port) {3663 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",3664 vf->vf_id);3665 goto err;3666 }3667 }3668 3669 if (mask.src_port & data.src_port) {3670 if (!data.src_port) {3671 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",3672 vf->vf_id);3673 goto err;3674 }3675 }3676 3677 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&3678 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {3679 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",3680 vf->vf_id);3681 goto err;3682 }3683 3684 if (mask.vlan_id & data.vlan_id) {3685 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {3686 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",3687 vf->vf_id);3688 goto err;3689 }3690 }3691 3692 return 0;3693err:3694 return -EIO;3695}3696 3697/**3698 * i40e_find_vsi_from_seid - searches for the vsi with the given seid3699 * @vf: pointer to the VF info3700 * @seid: seid of the vsi it is searching for3701 **/3702static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)3703{3704 struct i40e_pf *pf = vf->pf;3705 struct i40e_vsi *vsi = NULL;3706 int i;3707 3708 for (i = 0; i < vf->num_tc ; i++) {3709 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);3710 if (vsi && vsi->seid == seid)3711 return vsi;3712 }3713 return NULL;3714}3715 3716/**3717 * i40e_del_all_cloud_filters3718 * @vf: pointer to the VF info3719 *3720 * This function deletes all cloud filters3721 **/3722static void i40e_del_all_cloud_filters(struct i40e_vf *vf)3723{3724 struct i40e_cloud_filter *cfilter = NULL;3725 struct i40e_pf *pf = vf->pf;3726 struct i40e_vsi *vsi = NULL;3727 struct hlist_node *node;3728 int ret;3729 3730 hlist_for_each_entry_safe(cfilter, node,3731 &vf->cloud_filter_list, cloud_node) {3732 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);3733 3734 if (!vsi) {3735 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",3736 vf->vf_id, cfilter->seid);3737 continue;3738 }3739 3740 if (cfilter->dst_port)3741 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,3742 false);3743 else3744 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);3745 if (ret)3746 dev_err(&pf->pdev->dev,3747 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",3748 vf->vf_id, ERR_PTR(ret),3749 i40e_aq_str(&pf->hw,3750 pf->hw.aq.asq_last_status));3751 3752 hlist_del(&cfilter->cloud_node);3753 kfree(cfilter);3754 vf->num_cloud_filters--;3755 }3756}3757 3758/**3759 * i40e_vc_del_cloud_filter3760 * @vf: pointer to the VF info3761 * @msg: pointer to the msg buffer3762 *3763 * This function deletes a cloud filter programmed as TC filter for ADq3764 **/3765static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)3766{3767 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;3768 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;3769 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;3770 struct i40e_cloud_filter cfilter, *cf = NULL;3771 struct i40e_pf *pf = vf->pf;3772 struct i40e_vsi *vsi = NULL;3773 struct hlist_node *node;3774 int aq_ret = 0;3775 int i, ret;3776 3777 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3778 aq_ret = -EINVAL;3779 goto err;3780 }3781 3782 if (!vf->adq_enabled) {3783 dev_info(&pf->pdev->dev,3784 "VF %d: ADq not enabled, can't apply cloud filter\n",3785 vf->vf_id);3786 aq_ret = -EINVAL;3787 goto err;3788 }3789 3790 if (i40e_validate_cloud_filter(vf, vcf)) {3791 dev_info(&pf->pdev->dev,3792 "VF %d: Invalid input, can't apply cloud filter\n",3793 vf->vf_id);3794 aq_ret = -EINVAL;3795 goto err;3796 }3797 3798 memset(&cfilter, 0, sizeof(cfilter));3799 /* parse destination mac address */3800 for (i = 0; i < ETH_ALEN; i++)3801 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];3802 3803 /* parse source mac address */3804 for (i = 0; i < ETH_ALEN; i++)3805 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];3806 3807 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;3808 cfilter.dst_port = mask.dst_port & tcf.dst_port;3809 cfilter.src_port = mask.src_port & tcf.src_port;3810 3811 switch (vcf->flow_type) {3812 case VIRTCHNL_TCP_V4_FLOW:3813 cfilter.n_proto = ETH_P_IP;3814 if (mask.dst_ip[0] & tcf.dst_ip[0])3815 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,3816 ARRAY_SIZE(tcf.dst_ip));3817 else if (mask.src_ip[0] & tcf.dst_ip[0])3818 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,3819 ARRAY_SIZE(tcf.dst_ip));3820 break;3821 case VIRTCHNL_TCP_V6_FLOW:3822 cfilter.n_proto = ETH_P_IPV6;3823 if (mask.dst_ip[3] & tcf.dst_ip[3])3824 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,3825 sizeof(cfilter.ip.v6.dst_ip6));3826 if (mask.src_ip[3] & tcf.src_ip[3])3827 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,3828 sizeof(cfilter.ip.v6.src_ip6));3829 break;3830 default:3831 /* TC filter can be configured based on different combinations3832 * and in this case IP is not a part of filter config3833 */3834 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",3835 vf->vf_id);3836 }3837 3838 /* get the vsi to which the tc belongs to */3839 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];3840 cfilter.seid = vsi->seid;3841 cfilter.flags = vcf->field_flags;3842 3843 /* Deleting TC filter */3844 if (tcf.dst_port)3845 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);3846 else3847 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);3848 if (ret) {3849 dev_err(&pf->pdev->dev,3850 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",3851 vf->vf_id, ERR_PTR(ret),3852 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));3853 goto err;3854 }3855 3856 hlist_for_each_entry_safe(cf, node,3857 &vf->cloud_filter_list, cloud_node) {3858 if (cf->seid != cfilter.seid)3859 continue;3860 if (mask.dst_port)3861 if (cfilter.dst_port != cf->dst_port)3862 continue;3863 if (mask.dst_mac[0])3864 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))3865 continue;3866 /* for ipv4 data to be valid, only first byte of mask is set */3867 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])3868 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,3869 ARRAY_SIZE(tcf.dst_ip)))3870 continue;3871 /* for ipv6, mask is set for all sixteen bytes (4 words) */3872 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])3873 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,3874 sizeof(cfilter.ip.v6.src_ip6)))3875 continue;3876 if (mask.vlan_id)3877 if (cfilter.vlan_id != cf->vlan_id)3878 continue;3879 3880 hlist_del(&cf->cloud_node);3881 kfree(cf);3882 vf->num_cloud_filters--;3883 }3884 3885err:3886 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,3887 aq_ret);3888}3889 3890/**3891 * i40e_vc_add_cloud_filter3892 * @vf: pointer to the VF info3893 * @msg: pointer to the msg buffer3894 *3895 * This function adds a cloud filter programmed as TC filter for ADq3896 **/3897static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)3898{3899 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;3900 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;3901 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;3902 struct i40e_cloud_filter *cfilter = NULL;3903 struct i40e_pf *pf = vf->pf;3904 struct i40e_vsi *vsi = NULL;3905 int aq_ret = 0;3906 int i;3907 3908 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {3909 aq_ret = -EINVAL;3910 goto err_out;3911 }3912 3913 if (!vf->adq_enabled) {3914 dev_info(&pf->pdev->dev,3915 "VF %d: ADq is not enabled, can't apply cloud filter\n",3916 vf->vf_id);3917 aq_ret = -EINVAL;3918 goto err_out;3919 }3920 3921 if (i40e_validate_cloud_filter(vf, vcf)) {3922 dev_info(&pf->pdev->dev,3923 "VF %d: Invalid input/s, can't apply cloud filter\n",3924 vf->vf_id);3925 aq_ret = -EINVAL;3926 goto err_out;3927 }3928 3929 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);3930 if (!cfilter) {3931 aq_ret = -ENOMEM;3932 goto err_out;3933 }3934 3935 /* parse destination mac address */3936 for (i = 0; i < ETH_ALEN; i++)3937 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];3938 3939 /* parse source mac address */3940 for (i = 0; i < ETH_ALEN; i++)3941 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];3942 3943 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;3944 cfilter->dst_port = mask.dst_port & tcf.dst_port;3945 cfilter->src_port = mask.src_port & tcf.src_port;3946 3947 switch (vcf->flow_type) {3948 case VIRTCHNL_TCP_V4_FLOW:3949 cfilter->n_proto = ETH_P_IP;3950 if (mask.dst_ip[0] & tcf.dst_ip[0])3951 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,3952 ARRAY_SIZE(tcf.dst_ip));3953 else if (mask.src_ip[0] & tcf.dst_ip[0])3954 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,3955 ARRAY_SIZE(tcf.dst_ip));3956 break;3957 case VIRTCHNL_TCP_V6_FLOW:3958 cfilter->n_proto = ETH_P_IPV6;3959 if (mask.dst_ip[3] & tcf.dst_ip[3])3960 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,3961 sizeof(cfilter->ip.v6.dst_ip6));3962 if (mask.src_ip[3] & tcf.src_ip[3])3963 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,3964 sizeof(cfilter->ip.v6.src_ip6));3965 break;3966 default:3967 /* TC filter can be configured based on different combinations3968 * and in this case IP is not a part of filter config3969 */3970 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",3971 vf->vf_id);3972 }3973 3974 /* get the VSI to which the TC belongs to */3975 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];3976 cfilter->seid = vsi->seid;3977 cfilter->flags = vcf->field_flags;3978 3979 /* Adding cloud filter programmed as TC filter */3980 if (tcf.dst_port)3981 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);3982 else3983 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true);3984 if (aq_ret) {3985 dev_err(&pf->pdev->dev,3986 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n",3987 vf->vf_id, ERR_PTR(aq_ret),3988 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));3989 goto err_free;3990 }3991 3992 INIT_HLIST_NODE(&cfilter->cloud_node);3993 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);3994 /* release the pointer passing it to the collection */3995 cfilter = NULL;3996 vf->num_cloud_filters++;3997err_free:3998 kfree(cfilter);3999err_out:4000 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,4001 aq_ret);4002}4003 4004/**4005 * i40e_vc_add_qch_msg: Add queue channel and enable ADq4006 * @vf: pointer to the VF info4007 * @msg: pointer to the msg buffer4008 **/4009static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)4010{4011 struct virtchnl_tc_info *tci =4012 (struct virtchnl_tc_info *)msg;4013 struct i40e_pf *pf = vf->pf;4014 struct i40e_link_status *ls = &pf->hw.phy.link_info;4015 int i, adq_request_qps = 0;4016 int aq_ret = 0;4017 u64 speed = 0;4018 4019 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {4020 aq_ret = -EINVAL;4021 goto err;4022 }4023 4024 /* ADq cannot be applied if spoof check is ON */4025 if (vf->spoofchk) {4026 dev_err(&pf->pdev->dev,4027 "Spoof check is ON, turn it OFF to enable ADq\n");4028 aq_ret = -EINVAL;4029 goto err;4030 }4031 4032 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {4033 dev_err(&pf->pdev->dev,4034 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",4035 vf->vf_id);4036 aq_ret = -EINVAL;4037 goto err;4038 }4039 4040 /* max number of traffic classes for VF currently capped at 4 */4041 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {4042 dev_err(&pf->pdev->dev,4043 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",4044 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);4045 aq_ret = -EINVAL;4046 goto err;4047 }4048 4049 /* validate queues for each TC */4050 for (i = 0; i < tci->num_tc; i++)4051 if (!tci->list[i].count ||4052 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {4053 dev_err(&pf->pdev->dev,4054 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",4055 vf->vf_id, i, tci->list[i].count,4056 I40E_DEFAULT_QUEUES_PER_VF);4057 aq_ret = -EINVAL;4058 goto err;4059 }4060 4061 /* need Max VF queues but already have default number of queues */4062 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;4063 4064 if (pf->queues_left < adq_request_qps) {4065 dev_err(&pf->pdev->dev,4066 "No queues left to allocate to VF %d\n",4067 vf->vf_id);4068 aq_ret = -EINVAL;4069 goto err;4070 } else {4071 /* we need to allocate max VF queues to enable ADq so as to4072 * make sure ADq enabled VF always gets back queues when it4073 * goes through a reset.4074 */4075 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;4076 }4077 4078 /* get link speed in MB to validate rate limit */4079 speed = i40e_vc_link_speed2mbps(ls->link_speed);4080 if (speed == SPEED_UNKNOWN) {4081 dev_err(&pf->pdev->dev,4082 "Cannot detect link speed\n");4083 aq_ret = -EINVAL;4084 goto err;4085 }4086 4087 /* parse data from the queue channel info */4088 vf->num_tc = tci->num_tc;4089 for (i = 0; i < vf->num_tc; i++) {4090 if (tci->list[i].max_tx_rate) {4091 if (tci->list[i].max_tx_rate > speed) {4092 dev_err(&pf->pdev->dev,4093 "Invalid max tx rate %llu specified for VF %d.",4094 tci->list[i].max_tx_rate,4095 vf->vf_id);4096 aq_ret = -EINVAL;4097 goto err;4098 } else {4099 vf->ch[i].max_tx_rate =4100 tci->list[i].max_tx_rate;4101 }4102 }4103 vf->ch[i].num_qps = tci->list[i].count;4104 }4105 4106 /* set this flag only after making sure all inputs are sane */4107 vf->adq_enabled = true;4108 4109 /* reset the VF in order to allocate resources */4110 i40e_vc_reset_vf(vf, true);4111 4112 return 0;4113 4114 /* send the response to the VF */4115err:4116 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,4117 aq_ret);4118}4119 4120/**4121 * i40e_vc_del_qch_msg4122 * @vf: pointer to the VF info4123 * @msg: pointer to the msg buffer4124 **/4125static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)4126{4127 struct i40e_pf *pf = vf->pf;4128 int aq_ret = 0;4129 4130 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {4131 aq_ret = -EINVAL;4132 goto err;4133 }4134 4135 if (vf->adq_enabled) {4136 i40e_del_all_cloud_filters(vf);4137 i40e_del_qch(vf);4138 vf->adq_enabled = false;4139 vf->num_tc = 0;4140 dev_info(&pf->pdev->dev,4141 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",4142 vf->vf_id);4143 } else {4144 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",4145 vf->vf_id);4146 aq_ret = -EINVAL;4147 }4148 4149 /* reset the VF in order to allocate resources */4150 i40e_vc_reset_vf(vf, true);4151 4152 return 0;4153 4154err:4155 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,4156 aq_ret);4157}4158 4159/**4160 * i40e_vc_process_vf_msg4161 * @pf: pointer to the PF structure4162 * @vf_id: source VF id4163 * @v_opcode: operation code4164 * @v_retval: unused return value code4165 * @msg: pointer to the msg buffer4166 * @msglen: msg length4167 *4168 * called from the common aeq/arq handler to4169 * process request from VF4170 **/4171int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,4172 u32 __always_unused v_retval, u8 *msg, u16 msglen)4173{4174 struct i40e_hw *hw = &pf->hw;4175 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;4176 struct i40e_vf *vf;4177 int ret;4178 4179 pf->vf_aq_requests++;4180 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)4181 return -EINVAL;4182 vf = &(pf->vf[local_vf_id]);4183 4184 /* Check if VF is disabled. */4185 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))4186 return -EINVAL;4187 4188 /* perform basic checks on the msg */4189 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);4190 4191 if (ret) {4192 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL);4193 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",4194 local_vf_id, v_opcode, msglen);4195 return ret;4196 }4197 4198 switch (v_opcode) {4199 case VIRTCHNL_OP_VERSION:4200 ret = i40e_vc_get_version_msg(vf, msg);4201 break;4202 case VIRTCHNL_OP_GET_VF_RESOURCES:4203 ret = i40e_vc_get_vf_resources_msg(vf, msg);4204 i40e_vc_notify_vf_link_state(vf);4205 break;4206 case VIRTCHNL_OP_RESET_VF:4207 i40e_vc_reset_vf(vf, false);4208 ret = 0;4209 break;4210 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:4211 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);4212 break;4213 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:4214 ret = i40e_vc_config_queues_msg(vf, msg);4215 break;4216 case VIRTCHNL_OP_CONFIG_IRQ_MAP:4217 ret = i40e_vc_config_irq_map_msg(vf, msg);4218 break;4219 case VIRTCHNL_OP_ENABLE_QUEUES:4220 ret = i40e_vc_enable_queues_msg(vf, msg);4221 i40e_vc_notify_vf_link_state(vf);4222 break;4223 case VIRTCHNL_OP_DISABLE_QUEUES:4224 ret = i40e_vc_disable_queues_msg(vf, msg);4225 break;4226 case VIRTCHNL_OP_ADD_ETH_ADDR:4227 ret = i40e_vc_add_mac_addr_msg(vf, msg);4228 break;4229 case VIRTCHNL_OP_DEL_ETH_ADDR:4230 ret = i40e_vc_del_mac_addr_msg(vf, msg);4231 break;4232 case VIRTCHNL_OP_ADD_VLAN:4233 ret = i40e_vc_add_vlan_msg(vf, msg);4234 break;4235 case VIRTCHNL_OP_DEL_VLAN:4236 ret = i40e_vc_remove_vlan_msg(vf, msg);4237 break;4238 case VIRTCHNL_OP_GET_STATS:4239 ret = i40e_vc_get_stats_msg(vf, msg);4240 break;4241 case VIRTCHNL_OP_RDMA:4242 ret = i40e_vc_rdma_msg(vf, msg, msglen);4243 break;4244 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:4245 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true);4246 break;4247 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:4248 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false);4249 break;4250 case VIRTCHNL_OP_CONFIG_RSS_KEY:4251 ret = i40e_vc_config_rss_key(vf, msg);4252 break;4253 case VIRTCHNL_OP_CONFIG_RSS_LUT:4254 ret = i40e_vc_config_rss_lut(vf, msg);4255 break;4256 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:4257 ret = i40e_vc_get_rss_hena(vf, msg);4258 break;4259 case VIRTCHNL_OP_SET_RSS_HENA:4260 ret = i40e_vc_set_rss_hena(vf, msg);4261 break;4262 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:4263 ret = i40e_vc_enable_vlan_stripping(vf, msg);4264 break;4265 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:4266 ret = i40e_vc_disable_vlan_stripping(vf, msg);4267 break;4268 case VIRTCHNL_OP_REQUEST_QUEUES:4269 ret = i40e_vc_request_queues_msg(vf, msg);4270 break;4271 case VIRTCHNL_OP_ENABLE_CHANNELS:4272 ret = i40e_vc_add_qch_msg(vf, msg);4273 break;4274 case VIRTCHNL_OP_DISABLE_CHANNELS:4275 ret = i40e_vc_del_qch_msg(vf, msg);4276 break;4277 case VIRTCHNL_OP_ADD_CLOUD_FILTER:4278 ret = i40e_vc_add_cloud_filter(vf, msg);4279 break;4280 case VIRTCHNL_OP_DEL_CLOUD_FILTER:4281 ret = i40e_vc_del_cloud_filter(vf, msg);4282 break;4283 case VIRTCHNL_OP_UNKNOWN:4284 default:4285 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",4286 v_opcode, local_vf_id);4287 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,4288 -EOPNOTSUPP);4289 break;4290 }4291 4292 return ret;4293}4294 4295/**4296 * i40e_vc_process_vflr_event4297 * @pf: pointer to the PF structure4298 *4299 * called from the vlfr irq handler to4300 * free up VF resources and state variables4301 **/4302int i40e_vc_process_vflr_event(struct i40e_pf *pf)4303{4304 struct i40e_hw *hw = &pf->hw;4305 u32 reg, reg_idx, bit_idx;4306 struct i40e_vf *vf;4307 int vf_id;4308 4309 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))4310 return 0;4311 4312 /* Re-enable the VFLR interrupt cause here, before looking for which4313 * VF got reset. Otherwise, if another VF gets a reset while the4314 * first one is being processed, that interrupt will be lost, and4315 * that VF will be stuck in reset forever.4316 */4317 reg = rd32(hw, I40E_PFINT_ICR0_ENA);4318 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;4319 wr32(hw, I40E_PFINT_ICR0_ENA, reg);4320 i40e_flush(hw);4321 4322 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);4323 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {4324 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;4325 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;4326 /* read GLGEN_VFLRSTAT register to find out the flr VFs */4327 vf = &pf->vf[vf_id];4328 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));4329 if (reg & BIT(bit_idx))4330 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */4331 i40e_reset_vf(vf, true);4332 }4333 4334 return 0;4335}4336 4337/**4338 * i40e_validate_vf4339 * @pf: the physical function4340 * @vf_id: VF identifier4341 *4342 * Check that the VF is enabled and the VSI exists.4343 *4344 * Returns 0 on success, negative on failure4345 **/4346static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)4347{4348 struct i40e_vsi *vsi;4349 struct i40e_vf *vf;4350 int ret = 0;4351 4352 if (vf_id >= pf->num_alloc_vfs) {4353 dev_err(&pf->pdev->dev,4354 "Invalid VF Identifier %d\n", vf_id);4355 ret = -EINVAL;4356 goto err_out;4357 }4358 vf = &pf->vf[vf_id];4359 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);4360 if (!vsi)4361 ret = -EINVAL;4362err_out:4363 return ret;4364}4365 4366/**4367 * i40e_check_vf_init_timeout4368 * @vf: the virtual function4369 *4370 * Check that the VF's initialization was successfully done and if not4371 * wait up to 300ms for its finish.4372 *4373 * Returns true when VF is initialized, false on timeout4374 **/4375static bool i40e_check_vf_init_timeout(struct i40e_vf *vf)4376{4377 int i;4378 4379 /* When the VF is resetting wait until it is done.4380 * It can take up to 200 milliseconds, but wait for4381 * up to 300 milliseconds to be safe.4382 */4383 for (i = 0; i < 15; i++) {4384 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))4385 return true;4386 msleep(20);4387 }4388 4389 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {4390 dev_err(&vf->pf->pdev->dev,4391 "VF %d still in reset. Try again.\n", vf->vf_id);4392 return false;4393 }4394 4395 return true;4396}4397 4398/**4399 * i40e_ndo_set_vf_mac4400 * @netdev: network interface device structure4401 * @vf_id: VF identifier4402 * @mac: mac address4403 *4404 * program VF mac address4405 **/4406int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)4407{4408 struct i40e_netdev_priv *np = netdev_priv(netdev);4409 struct i40e_vsi *vsi = np->vsi;4410 struct i40e_pf *pf = vsi->back;4411 struct i40e_mac_filter *f;4412 struct i40e_vf *vf;4413 int ret = 0;4414 struct hlist_node *h;4415 int bkt;4416 4417 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4418 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4419 return -EAGAIN;4420 }4421 4422 /* validate the request */4423 ret = i40e_validate_vf(pf, vf_id);4424 if (ret)4425 goto error_param;4426 4427 vf = &pf->vf[vf_id];4428 if (!i40e_check_vf_init_timeout(vf)) {4429 ret = -EAGAIN;4430 goto error_param;4431 }4432 vsi = pf->vsi[vf->lan_vsi_idx];4433 4434 if (is_multicast_ether_addr(mac)) {4435 dev_err(&pf->pdev->dev,4436 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);4437 ret = -EINVAL;4438 goto error_param;4439 }4440 4441 /* Lock once because below invoked function add/del_filter requires4442 * mac_filter_hash_lock to be held4443 */4444 spin_lock_bh(&vsi->mac_filter_hash_lock);4445 4446 /* delete the temporary mac address */4447 if (!is_zero_ether_addr(vf->default_lan_addr.addr))4448 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);4449 4450 /* Delete all the filters for this VSI - we're going to kill it4451 * anyway.4452 */4453 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)4454 __i40e_del_filter(vsi, f);4455 4456 spin_unlock_bh(&vsi->mac_filter_hash_lock);4457 4458 /* program mac filter */4459 if (i40e_sync_vsi_filters(vsi)) {4460 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");4461 ret = -EIO;4462 goto error_param;4463 }4464 ether_addr_copy(vf->default_lan_addr.addr, mac);4465 4466 if (is_zero_ether_addr(mac)) {4467 vf->pf_set_mac = false;4468 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);4469 } else {4470 vf->pf_set_mac = true;4471 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",4472 mac, vf_id);4473 }4474 4475 /* Force the VF interface down so it has to bring up with new MAC4476 * address4477 */4478 i40e_vc_reset_vf(vf, true);4479 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");4480 4481error_param:4482 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4483 return ret;4484}4485 4486/**4487 * i40e_ndo_set_vf_port_vlan4488 * @netdev: network interface device structure4489 * @vf_id: VF identifier4490 * @vlan_id: mac address4491 * @qos: priority setting4492 * @vlan_proto: vlan protocol4493 *4494 * program VF vlan id and/or qos4495 **/4496int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,4497 u16 vlan_id, u8 qos, __be16 vlan_proto)4498{4499 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);4500 struct i40e_netdev_priv *np = netdev_priv(netdev);4501 bool allmulti = false, alluni = false;4502 struct i40e_pf *pf = np->vsi->back;4503 struct i40e_vsi *vsi;4504 struct i40e_vf *vf;4505 int ret = 0;4506 4507 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4508 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4509 return -EAGAIN;4510 }4511 4512 /* validate the request */4513 ret = i40e_validate_vf(pf, vf_id);4514 if (ret)4515 goto error_pvid;4516 4517 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {4518 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");4519 ret = -EINVAL;4520 goto error_pvid;4521 }4522 4523 if (vlan_proto != htons(ETH_P_8021Q)) {4524 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");4525 ret = -EPROTONOSUPPORT;4526 goto error_pvid;4527 }4528 4529 vf = &pf->vf[vf_id];4530 if (!i40e_check_vf_init_timeout(vf)) {4531 ret = -EAGAIN;4532 goto error_pvid;4533 }4534 vsi = pf->vsi[vf->lan_vsi_idx];4535 4536 if (le16_to_cpu(vsi->info.pvid) == vlanprio)4537 /* duplicate request, so just return success */4538 goto error_pvid;4539 4540 i40e_vlan_stripping_enable(vsi);4541 4542 /* Locked once because multiple functions below iterate list */4543 spin_lock_bh(&vsi->mac_filter_hash_lock);4544 4545 /* Check for condition where there was already a port VLAN ID4546 * filter set and now it is being deleted by setting it to zero.4547 * Additionally check for the condition where there was a port4548 * VLAN but now there is a new and different port VLAN being set.4549 * Before deleting all the old VLAN filters we must add new ones4550 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our4551 * MAC addresses deleted.4552 */4553 if ((!(vlan_id || qos) ||4554 vlanprio != le16_to_cpu(vsi->info.pvid)) &&4555 vsi->info.pvid) {4556 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);4557 if (ret) {4558 dev_info(&vsi->back->pdev->dev,4559 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,4560 vsi->back->hw.aq.asq_last_status);4561 spin_unlock_bh(&vsi->mac_filter_hash_lock);4562 goto error_pvid;4563 }4564 }4565 4566 if (vsi->info.pvid) {4567 /* remove all filters on the old VLAN */4568 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &4569 VLAN_VID_MASK));4570 }4571 4572 spin_unlock_bh(&vsi->mac_filter_hash_lock);4573 4574 /* disable promisc modes in case they were enabled */4575 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,4576 allmulti, alluni);4577 if (ret) {4578 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");4579 goto error_pvid;4580 }4581 4582 if (vlan_id || qos)4583 ret = i40e_vsi_add_pvid(vsi, vlanprio);4584 else4585 i40e_vsi_remove_pvid(vsi);4586 spin_lock_bh(&vsi->mac_filter_hash_lock);4587 4588 if (vlan_id) {4589 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",4590 vlan_id, qos, vf_id);4591 4592 /* add new VLAN filter for each MAC */4593 ret = i40e_add_vlan_all_mac(vsi, vlan_id);4594 if (ret) {4595 dev_info(&vsi->back->pdev->dev,4596 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,4597 vsi->back->hw.aq.asq_last_status);4598 spin_unlock_bh(&vsi->mac_filter_hash_lock);4599 goto error_pvid;4600 }4601 4602 /* remove the previously added non-VLAN MAC filters */4603 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);4604 }4605 4606 spin_unlock_bh(&vsi->mac_filter_hash_lock);4607 4608 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))4609 alluni = true;4610 4611 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))4612 allmulti = true;4613 4614 /* Schedule the worker thread to take care of applying changes */4615 i40e_service_event_schedule(vsi->back);4616 4617 if (ret) {4618 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");4619 goto error_pvid;4620 }4621 4622 /* The Port VLAN needs to be saved across resets the same as the4623 * default LAN MAC address.4624 */4625 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);4626 4627 i40e_vc_reset_vf(vf, true);4628 /* During reset the VF got a new VSI, so refresh a pointer. */4629 vsi = pf->vsi[vf->lan_vsi_idx];4630 4631 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);4632 if (ret) {4633 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");4634 goto error_pvid;4635 }4636 4637 ret = 0;4638 4639error_pvid:4640 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4641 return ret;4642}4643 4644/**4645 * i40e_ndo_set_vf_bw4646 * @netdev: network interface device structure4647 * @vf_id: VF identifier4648 * @min_tx_rate: Minimum Tx rate4649 * @max_tx_rate: Maximum Tx rate4650 *4651 * configure VF Tx rate4652 **/4653int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,4654 int max_tx_rate)4655{4656 struct i40e_netdev_priv *np = netdev_priv(netdev);4657 struct i40e_pf *pf = np->vsi->back;4658 struct i40e_vsi *vsi;4659 struct i40e_vf *vf;4660 int ret = 0;4661 4662 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4663 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4664 return -EAGAIN;4665 }4666 4667 /* validate the request */4668 ret = i40e_validate_vf(pf, vf_id);4669 if (ret)4670 goto error;4671 4672 if (min_tx_rate) {4673 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",4674 min_tx_rate, vf_id);4675 ret = -EINVAL;4676 goto error;4677 }4678 4679 vf = &pf->vf[vf_id];4680 if (!i40e_check_vf_init_timeout(vf)) {4681 ret = -EAGAIN;4682 goto error;4683 }4684 vsi = pf->vsi[vf->lan_vsi_idx];4685 4686 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);4687 if (ret)4688 goto error;4689 4690 vf->tx_rate = max_tx_rate;4691error:4692 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4693 return ret;4694}4695 4696/**4697 * i40e_ndo_get_vf_config4698 * @netdev: network interface device structure4699 * @vf_id: VF identifier4700 * @ivi: VF configuration structure4701 *4702 * return VF configuration4703 **/4704int i40e_ndo_get_vf_config(struct net_device *netdev,4705 int vf_id, struct ifla_vf_info *ivi)4706{4707 struct i40e_netdev_priv *np = netdev_priv(netdev);4708 struct i40e_vsi *vsi = np->vsi;4709 struct i40e_pf *pf = vsi->back;4710 struct i40e_vf *vf;4711 int ret = 0;4712 4713 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4714 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4715 return -EAGAIN;4716 }4717 4718 /* validate the request */4719 ret = i40e_validate_vf(pf, vf_id);4720 if (ret)4721 goto error_param;4722 4723 vf = &pf->vf[vf_id];4724 /* first vsi is always the LAN vsi */4725 vsi = pf->vsi[vf->lan_vsi_idx];4726 if (!vsi) {4727 ret = -ENOENT;4728 goto error_param;4729 }4730 4731 ivi->vf = vf_id;4732 4733 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);4734 4735 ivi->max_tx_rate = vf->tx_rate;4736 ivi->min_tx_rate = 0;4737 ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK);4738 ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK);4739 if (vf->link_forced == false)4740 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;4741 else if (vf->link_up == true)4742 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;4743 else4744 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;4745 ivi->spoofchk = vf->spoofchk;4746 ivi->trusted = vf->trusted;4747 ret = 0;4748 4749error_param:4750 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4751 return ret;4752}4753 4754/**4755 * i40e_ndo_set_vf_link_state4756 * @netdev: network interface device structure4757 * @vf_id: VF identifier4758 * @link: required link state4759 *4760 * Set the link state of a specified VF, regardless of physical link state4761 **/4762int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)4763{4764 struct i40e_netdev_priv *np = netdev_priv(netdev);4765 struct i40e_pf *pf = np->vsi->back;4766 struct i40e_link_status *ls = &pf->hw.phy.link_info;4767 struct virtchnl_pf_event pfe;4768 struct i40e_hw *hw = &pf->hw;4769 struct i40e_vsi *vsi;4770 unsigned long q_map;4771 struct i40e_vf *vf;4772 int abs_vf_id;4773 int ret = 0;4774 int tmp;4775 4776 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4777 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4778 return -EAGAIN;4779 }4780 4781 /* validate the request */4782 if (vf_id >= pf->num_alloc_vfs) {4783 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);4784 ret = -EINVAL;4785 goto error_out;4786 }4787 4788 vf = &pf->vf[vf_id];4789 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;4790 4791 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;4792 pfe.severity = PF_EVENT_SEVERITY_INFO;4793 4794 switch (link) {4795 case IFLA_VF_LINK_STATE_AUTO:4796 vf->link_forced = false;4797 vf->is_disabled_from_host = false;4798 /* reset needed to reinit VF resources */4799 i40e_vc_reset_vf(vf, true);4800 i40e_set_vf_link_state(vf, &pfe, ls);4801 break;4802 case IFLA_VF_LINK_STATE_ENABLE:4803 vf->link_forced = true;4804 vf->link_up = true;4805 vf->is_disabled_from_host = false;4806 /* reset needed to reinit VF resources */4807 i40e_vc_reset_vf(vf, true);4808 i40e_set_vf_link_state(vf, &pfe, ls);4809 break;4810 case IFLA_VF_LINK_STATE_DISABLE:4811 vf->link_forced = true;4812 vf->link_up = false;4813 i40e_set_vf_link_state(vf, &pfe, ls);4814 4815 vsi = pf->vsi[vf->lan_vsi_idx];4816 q_map = BIT(vsi->num_queue_pairs) - 1;4817 4818 vf->is_disabled_from_host = true;4819 4820 /* Try to stop both Tx&Rx rings even if one of the calls fails4821 * to ensure we stop the rings even in case of errors.4822 * If any of them returns with an error then the first4823 * error that occurred will be returned.4824 */4825 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);4826 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);4827 4828 ret = tmp ? tmp : ret;4829 break;4830 default:4831 ret = -EINVAL;4832 goto error_out;4833 }4834 /* Notify the VF of its new link state */4835 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,4836 0, (u8 *)&pfe, sizeof(pfe), NULL);4837 4838error_out:4839 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4840 return ret;4841}4842 4843/**4844 * i40e_ndo_set_vf_spoofchk4845 * @netdev: network interface device structure4846 * @vf_id: VF identifier4847 * @enable: flag to enable or disable feature4848 *4849 * Enable or disable VF spoof checking4850 **/4851int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)4852{4853 struct i40e_netdev_priv *np = netdev_priv(netdev);4854 struct i40e_vsi *vsi = np->vsi;4855 struct i40e_pf *pf = vsi->back;4856 struct i40e_vsi_context ctxt;4857 struct i40e_hw *hw = &pf->hw;4858 struct i40e_vf *vf;4859 int ret = 0;4860 4861 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4862 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4863 return -EAGAIN;4864 }4865 4866 /* validate the request */4867 if (vf_id >= pf->num_alloc_vfs) {4868 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);4869 ret = -EINVAL;4870 goto out;4871 }4872 4873 vf = &(pf->vf[vf_id]);4874 if (!i40e_check_vf_init_timeout(vf)) {4875 ret = -EAGAIN;4876 goto out;4877 }4878 4879 if (enable == vf->spoofchk)4880 goto out;4881 4882 vf->spoofchk = enable;4883 memset(&ctxt, 0, sizeof(ctxt));4884 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;4885 ctxt.pf_num = pf->hw.pf_id;4886 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);4887 if (enable)4888 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |4889 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);4890 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);4891 if (ret) {4892 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",4893 ret);4894 ret = -EIO;4895 }4896out:4897 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4898 return ret;4899}4900 4901/**4902 * i40e_ndo_set_vf_trust4903 * @netdev: network interface device structure of the pf4904 * @vf_id: VF identifier4905 * @setting: trust setting4906 *4907 * Enable or disable VF trust setting4908 **/4909int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)4910{4911 struct i40e_netdev_priv *np = netdev_priv(netdev);4912 struct i40e_pf *pf = np->vsi->back;4913 struct i40e_vf *vf;4914 int ret = 0;4915 4916 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {4917 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");4918 return -EAGAIN;4919 }4920 4921 /* validate the request */4922 if (vf_id >= pf->num_alloc_vfs) {4923 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);4924 ret = -EINVAL;4925 goto out;4926 }4927 4928 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {4929 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");4930 ret = -EINVAL;4931 goto out;4932 }4933 4934 vf = &pf->vf[vf_id];4935 4936 if (setting == vf->trusted)4937 goto out;4938 4939 vf->trusted = setting;4940 4941 /* request PF to sync mac/vlan filters for the VF */4942 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);4943 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;4944 4945 i40e_vc_reset_vf(vf, true);4946 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",4947 vf_id, setting ? "" : "un");4948 4949 if (vf->adq_enabled) {4950 if (!vf->trusted) {4951 dev_info(&pf->pdev->dev,4952 "VF %u no longer Trusted, deleting all cloud filters\n",4953 vf_id);4954 i40e_del_all_cloud_filters(vf);4955 }4956 }4957 4958out:4959 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);4960 return ret;4961}4962 4963/**4964 * i40e_get_vf_stats - populate some stats for the VF4965 * @netdev: the netdev of the PF4966 * @vf_id: the host OS identifier (0-127)4967 * @vf_stats: pointer to the OS memory to be initialized4968 */4969int i40e_get_vf_stats(struct net_device *netdev, int vf_id,4970 struct ifla_vf_stats *vf_stats)4971{4972 struct i40e_netdev_priv *np = netdev_priv(netdev);4973 struct i40e_pf *pf = np->vsi->back;4974 struct i40e_eth_stats *stats;4975 struct i40e_vsi *vsi;4976 struct i40e_vf *vf;4977 4978 /* validate the request */4979 if (i40e_validate_vf(pf, vf_id))4980 return -EINVAL;4981 4982 vf = &pf->vf[vf_id];4983 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {4984 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);4985 return -EBUSY;4986 }4987 4988 vsi = pf->vsi[vf->lan_vsi_idx];4989 if (!vsi)4990 return -EINVAL;4991 4992 i40e_update_eth_stats(vsi);4993 stats = &vsi->eth_stats;4994 4995 memset(vf_stats, 0, sizeof(*vf_stats));4996 4997 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +4998 stats->rx_multicast;4999 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +5000 stats->tx_multicast;5001 vf_stats->rx_bytes = stats->rx_bytes;5002 vf_stats->tx_bytes = stats->tx_bytes;5003 vf_stats->broadcast = stats->rx_broadcast;5004 vf_stats->multicast = stats->rx_multicast;5005 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other;5006 vf_stats->tx_dropped = stats->tx_discards;5007 5008 return 0;5009}5010