1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
5 #include "i40e_lan_hmc.h"
6 #include "i40e_virtchnl_pf.h"
8 /*********************notification routines***********************/
11 * i40e_vc_vf_broadcast
12 * @pf: pointer to the PF structure
13 * @v_opcode: operation code
14 * @v_retval: return value
15 * @msg: pointer to the msg buffer
18 * send a message to all VFs on a given PF
20 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
21 enum virtchnl_ops v_opcode,
22 int v_retval, u8 *msg,
25 struct i40e_hw *hw = &pf->hw;
26 struct i40e_vf *vf = pf->vf;
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))
36 /* Ignore return value on purpose - a given VF may fail, but
37 * we need to keep going and send to all of them
39 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
45 * i40e_vc_link_speed2mbps
46 * converts i40e_aq_link_speed to integer value of Mbps
47 * @link_speed: the speed to convert
49 * return the speed as direct value of Mbps.
52 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
55 case I40E_LINK_SPEED_100MB:
57 case I40E_LINK_SPEED_1GB:
59 case I40E_LINK_SPEED_2_5GB:
61 case I40E_LINK_SPEED_5GB:
63 case I40E_LINK_SPEED_10GB:
65 case I40E_LINK_SPEED_20GB:
67 case I40E_LINK_SPEED_25GB:
69 case I40E_LINK_SPEED_40GB:
71 case I40E_LINK_SPEED_UNKNOWN:
78 * i40e_set_vf_link_state
79 * @vf: pointer to the VF structure
80 * @pfe: pointer to PF event structure
81 * @ls: pointer to link status structure
83 * set a link state on a single vf
85 static void i40e_set_vf_link_state(struct i40e_vf *vf,
86 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
88 u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
91 link_status = vf->link_up;
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;
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;
105 * i40e_vc_notify_vf_link_state
106 * @vf: pointer to the VF structure
108 * send a link status message to a single VF
110 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
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;
118 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
119 pfe.severity = PF_EVENT_SEVERITY_INFO;
121 i40e_set_vf_link_state(vf, &pfe, ls);
123 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
124 0, (u8 *)&pfe, sizeof(pfe), NULL);
128 * i40e_vc_notify_link_state
129 * @pf: pointer to the PF structure
131 * send a link status message to all VFs on a given PF
133 void i40e_vc_notify_link_state(struct i40e_pf *pf)
137 for (i = 0; i < pf->num_alloc_vfs; i++)
138 i40e_vc_notify_vf_link_state(&pf->vf[i]);
142 * i40e_vc_notify_reset
143 * @pf: pointer to the PF structure
145 * indicate a pending reset to all VFs on a given PF
147 void i40e_vc_notify_reset(struct i40e_pf *pf)
149 struct virtchnl_pf_event pfe;
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));
157 #ifdef CONFIG_PCI_IOV
158 void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev)
163 /* Continue only if this is a PF */
164 if (!pdev->is_physfn)
167 if (!pci_num_vf(pdev))
170 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
172 struct pci_dev *vf_dev = NULL;
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);
181 #endif /* CONFIG_PCI_IOV */
184 * i40e_vc_notify_vf_reset
185 * @vf: pointer to the VF structure
187 * indicate a pending reset to the given VF
189 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
191 struct virtchnl_pf_event pfe;
194 /* validate the request */
195 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
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))
203 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
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,
209 sizeof(struct virtchnl_pf_event), NULL);
211 /***********************misc routines*****************************/
215 * @vf: pointer to the VF info
216 * @notify_vf: notify vf about reset or not
219 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
221 struct i40e_pf *pf = vf->pf;
225 i40e_vc_notify_vf_reset(vf);
227 /* We want to ensure that an actual reset occurs initiated after this
228 * function was called. However, we do not want to wait forever, so
229 * we'll give a reasonable time and print a message if we failed to
232 for (i = 0; i < 20; i++) {
233 /* If PF is in VFs releasing state reset VF is impossible,
236 if (test_bit(__I40E_VFS_RELEASING, pf->state))
238 if (i40e_reset_vf(vf, false))
240 usleep_range(10000, 20000);
244 dev_warn(&vf->pf->pdev->dev,
245 "Failed to initiate reset for VF %d after 200 milliseconds\n",
248 dev_dbg(&vf->pf->pdev->dev,
249 "Failed to initiate reset for VF %d after 200 milliseconds\n",
254 * i40e_vc_isvalid_vsi_id
255 * @vf: pointer to the VF info
256 * @vsi_id: VF relative VSI id
258 * check for the valid VSI id
260 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
262 struct i40e_pf *pf = vf->pf;
263 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
265 return (vsi && (vsi->vf_id == vf->vf_id));
269 * i40e_vc_isvalid_queue_id
270 * @vf: pointer to the VF info
272 * @qid: vsi relative queue id
274 * check for the valid queue id
276 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
279 struct i40e_pf *pf = vf->pf;
280 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
282 return (vsi && (qid < vsi->alloc_queue_pairs));
286 * i40e_vc_isvalid_vector_id
287 * @vf: pointer to the VF info
288 * @vector_id: VF relative vector id
290 * check for the valid vector id
292 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
294 struct i40e_pf *pf = vf->pf;
296 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
299 /***********************vf resource mgmt routines*****************/
302 * i40e_vc_get_pf_queue_id
303 * @vf: pointer to the VF info
304 * @vsi_id: id of VSI as provided by the FW
305 * @vsi_queue_id: vsi relative queue id
307 * return PF relative queue id
309 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
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;
319 if (le16_to_cpu(vsi->info.mapping_flags) &
320 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
322 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
324 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
331 * i40e_get_real_pf_qid
332 * @vf: pointer to the VF info
334 * @queue_id: queue number
336 * wrapper function to get pf_queue_id handling ADq code as well
338 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
342 if (vf->adq_enabled) {
343 /* Although VF considers all the queues(can be 1 to 16) as its
344 * own but they may actually belong to different VSIs(up to 4).
345 * We need to find which queues belongs to which VSI.
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;
352 /* find right queue id which is relative to a
355 queue_id -= vf->ch[i].num_qps;
359 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);
363 * i40e_config_irq_link_list
364 * @vf: pointer to the VF info
365 * @vsi_id: id of VSI as given by the FW
366 * @vecmap: irq map info
368 * configure irq link list from the map
370 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
371 struct virtchnl_vector_map *vecmap)
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;
382 vector_id = vecmap->vector_id;
385 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
387 reg_idx = I40E_VPINT_LNKLSTN(
388 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
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);
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 *
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 *
408 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
409 next_q = find_first_bit(&linklistmap, size);
410 if (unlikely(next_q == size))
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);
418 wr32(hw, reg_idx, reg);
420 while (next_q < size) {
422 case I40E_QUEUE_TYPE_RX:
423 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
424 itr_idx = vecmap->rxitr_idx;
426 case I40E_QUEUE_TYPE_TX:
427 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
428 itr_idx = vecmap->txitr_idx;
434 next_q = find_next_bit(&linklistmap, size, next_q + 1);
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,
442 pf_queue_id = I40E_QUEUE_END_OF_LIST;
446 /* format for the RQCTL & TQCTL regs is same */
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);
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.
458 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
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);
472 * i40e_release_rdma_qvlist
473 * @vf: pointer to the VF.
476 static void i40e_release_rdma_qvlist(struct i40e_vf *vf)
478 struct i40e_pf *pf = vf->pf;
479 struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info;
483 if (!vf->qvlist_info)
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;
493 qv_info = &qvlist_info->qv_info[i];
496 v_idx = qv_info->v_idx;
497 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
498 /* Figure out the queue after CEQ and make that the
501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
502 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
503 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,
505 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,
508 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
509 reg = (next_q_index &
510 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
512 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
517 kfree(vf->qvlist_info);
518 vf->qvlist_info = NULL;
522 * i40e_config_rdma_qvlist
523 * @vf: pointer to the VF info
524 * @qvlist_info: queue and vector list
526 * Return 0 on success or < 0 on error
529 i40e_config_rdma_qvlist(struct i40e_vf *vf,
530 struct virtchnl_rdma_qvlist_info *qvlist_info)
532 struct i40e_pf *pf = vf->pf;
533 struct i40e_hw *hw = &pf->hw;
534 struct virtchnl_rdma_qv_info *qv_info;
535 u32 v_idx, i, reg_idx, reg;
536 u32 next_q_idx, next_q_type;
541 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
543 if (qvlist_info->num_vectors > msix_vf) {
544 dev_warn(&pf->pdev->dev,
545 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
546 qvlist_info->num_vectors,
552 kfree(vf->qvlist_info);
553 size = virtchnl_struct_size(vf->qvlist_info, qv_info,
554 qvlist_info->num_vectors);
555 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
556 if (!vf->qvlist_info) {
560 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
562 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
563 for (i = 0; i < qvlist_info->num_vectors; i++) {
564 qv_info = &qvlist_info->qv_info[i];
568 /* Validate vector id belongs to this vf */
569 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
574 v_idx = qv_info->v_idx;
576 vf->qvlist_info->qv_info[i] = *qv_info;
578 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
579 /* We might be sharing the interrupt, so get the first queue
580 * index and type, push it down the list by adding the new
581 * queue on top. Also link it with the new queue in CEQCTL.
583 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
584 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
586 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
589 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
590 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
591 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
592 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
593 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
594 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
595 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
596 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
598 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
599 reg = (qv_info->ceq_idx &
600 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
601 (I40E_QUEUE_TYPE_PE_CEQ <<
602 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
603 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
606 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
607 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
608 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
609 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
611 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
617 kfree(vf->qvlist_info);
618 vf->qvlist_info = NULL;
624 * i40e_config_vsi_tx_queue
625 * @vf: pointer to the VF info
626 * @vsi_id: id of VSI as provided by the FW
627 * @vsi_queue_id: vsi relative queue index
628 * @info: config. info
632 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
634 struct virtchnl_txq_info *info)
636 struct i40e_pf *pf = vf->pf;
637 struct i40e_hw *hw = &pf->hw;
638 struct i40e_hmc_obj_txq tx_ctx;
639 struct i40e_vsi *vsi;
644 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
648 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
649 vsi = i40e_find_vsi_from_id(pf, vsi_id);
655 /* clear the context structure first */
656 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
658 /* only set the required fields */
659 tx_ctx.base = info->dma_ring_addr / 128;
660 tx_ctx.qlen = info->ring_len;
661 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
662 tx_ctx.rdylist_act = 0;
663 tx_ctx.head_wb_ena = info->headwb_enabled;
664 tx_ctx.head_wb_addr = info->dma_headwb_addr;
666 /* clear the context in the HMC */
667 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
669 dev_err(&pf->pdev->dev,
670 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
676 /* set the context in the HMC */
677 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
679 dev_err(&pf->pdev->dev,
680 "Failed to set VF LAN Tx queue context %d error: %d\n",
686 /* associate this queue with the PCI VF function */
687 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
688 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
689 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
690 vf->vf_id + hw->func_caps.vf_base_id);
691 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
699 * i40e_config_vsi_rx_queue
700 * @vf: pointer to the VF info
701 * @vsi_id: id of VSI as provided by the FW
702 * @vsi_queue_id: vsi relative queue index
703 * @info: config. info
707 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
709 struct virtchnl_rxq_info *info)
711 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
712 struct i40e_pf *pf = vf->pf;
713 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
714 struct i40e_hw *hw = &pf->hw;
715 struct i40e_hmc_obj_rxq rx_ctx;
718 /* clear the context structure first */
719 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
721 /* only set the required fields */
722 rx_ctx.base = info->dma_ring_addr / 128;
723 rx_ctx.qlen = info->ring_len;
725 if (info->splithdr_enabled) {
726 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
728 I40E_RX_SPLIT_TCP_UDP |
730 /* header length validation */
731 if (info->hdr_size > ((2 * 1024) - 64)) {
735 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
737 /* set split mode 10b */
738 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
741 /* databuffer length validation */
742 if (info->databuffer_size > ((16 * 1024) - 128)) {
746 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
748 /* max pkt. length validation */
749 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
753 rx_ctx.rxmax = info->max_pkt_size;
755 /* if port VLAN is configured increase the max packet size */
757 rx_ctx.rxmax += VLAN_HLEN;
759 /* enable 32bytes desc always */
763 rx_ctx.lrxqthresh = 1;
768 /* clear the context in the HMC */
769 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
771 dev_err(&pf->pdev->dev,
772 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
778 /* set the context in the HMC */
779 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
781 dev_err(&pf->pdev->dev,
782 "Failed to set VF LAN Rx queue context %d error: %d\n",
794 * @vf: pointer to the VF info
795 * @idx: VSI index, applies only for ADq mode, zero otherwise
797 * alloc VF vsi context & resources
799 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
801 struct i40e_mac_filter *f = NULL;
802 struct i40e_pf *pf = vf->pf;
803 struct i40e_vsi *vsi;
807 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
811 dev_err(&pf->pdev->dev,
812 "add vsi failed for VF %d, aq_err %d\n",
813 vf->vf_id, pf->hw.aq.asq_last_status);
815 goto error_alloc_vsi_res;
819 u64 hena = i40e_pf_get_default_rss_hena(pf);
820 u8 broadcast[ETH_ALEN];
822 vf->lan_vsi_idx = vsi->idx;
823 vf->lan_vsi_id = vsi->id;
824 /* If the port VLAN has been configured and then the
825 * VF driver was removed then the VSI port VLAN
826 * configuration was destroyed. Check if there is
827 * a port VLAN and restore the VSI configuration if
830 if (vf->port_vlan_id)
831 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
833 spin_lock_bh(&vsi->mac_filter_hash_lock);
834 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
835 f = i40e_add_mac_filter(vsi,
836 vf->default_lan_addr.addr);
838 dev_info(&pf->pdev->dev,
839 "Could not add MAC filter %pM for VF %d\n",
840 vf->default_lan_addr.addr, vf->vf_id);
842 eth_broadcast_addr(broadcast);
843 f = i40e_add_mac_filter(vsi, broadcast);
845 dev_info(&pf->pdev->dev,
846 "Could not allocate VF broadcast filter\n");
847 spin_unlock_bh(&vsi->mac_filter_hash_lock);
848 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
849 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
850 /* program mac filter only for VF VSI */
851 ret = i40e_sync_vsi_filters(vsi);
853 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
856 /* storing VSI index and id for ADq and don't apply the mac filter */
857 if (vf->adq_enabled) {
858 vf->ch[idx].vsi_idx = vsi->idx;
859 vf->ch[idx].vsi_id = vsi->id;
862 /* Set VF bandwidth if specified */
864 max_tx_rate = vf->tx_rate;
865 } else if (vf->ch[idx].max_tx_rate) {
866 max_tx_rate = vf->ch[idx].max_tx_rate;
870 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
871 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
872 max_tx_rate, 0, NULL);
874 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
883 * i40e_map_pf_queues_to_vsi
884 * @vf: pointer to the VF info
886 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
887 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
889 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
891 struct i40e_pf *pf = vf->pf;
892 struct i40e_hw *hw = &pf->hw;
893 u32 reg, num_tc = 1; /* VF has at least one traffic class */
900 for (i = 0; i < num_tc; i++) {
901 if (vf->adq_enabled) {
902 qps = vf->ch[i].num_qps;
903 vsi_id = vf->ch[i].vsi_id;
905 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
906 vsi_id = vf->lan_vsi_id;
909 for (j = 0; j < 7; j++) {
914 u16 qid = i40e_vc_get_pf_queue_id(vf,
918 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
922 i40e_write_rx_ctl(hw,
923 I40E_VSILAN_QTABLE(j, vsi_id),
930 * i40e_map_pf_to_vf_queues
931 * @vf: pointer to the VF info
933 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
934 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
936 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
938 struct i40e_pf *pf = vf->pf;
939 struct i40e_hw *hw = &pf->hw;
940 u32 reg, total_qps = 0;
941 u32 qps, num_tc = 1; /* VF has at least one traffic class */
948 for (i = 0; i < num_tc; i++) {
949 if (vf->adq_enabled) {
950 qps = vf->ch[i].num_qps;
951 vsi_id = vf->ch[i].vsi_id;
953 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
954 vsi_id = vf->lan_vsi_id;
957 for (j = 0; j < qps; j++) {
958 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
960 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
961 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
969 * i40e_enable_vf_mappings
970 * @vf: pointer to the VF info
974 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
976 struct i40e_pf *pf = vf->pf;
977 struct i40e_hw *hw = &pf->hw;
980 /* Tell the hardware we're using noncontiguous mapping. HW requires
981 * that VF queues be mapped using this method, even when they are
982 * contiguous in real life
984 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
985 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
987 /* enable VF vplan_qtable mappings */
988 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
989 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
991 i40e_map_pf_to_vf_queues(vf);
992 i40e_map_pf_queues_to_vsi(vf);
998 * i40e_disable_vf_mappings
999 * @vf: pointer to the VF info
1001 * disable VF mappings
1003 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
1005 struct i40e_pf *pf = vf->pf;
1006 struct i40e_hw *hw = &pf->hw;
1009 /* disable qp mappings */
1010 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
1011 for (i = 0; i < I40E_MAX_VSI_QP; i++)
1012 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
1013 I40E_QUEUE_END_OF_LIST);
1019 * @vf: pointer to the VF info
1023 static void i40e_free_vf_res(struct i40e_vf *vf)
1025 struct i40e_pf *pf = vf->pf;
1026 struct i40e_hw *hw = &pf->hw;
1030 /* Start by disabling VF's configuration API to prevent the OS from
1031 * accessing the VF's VSI after it's freed / invalidated.
1033 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1035 /* It's possible the VF had requeuested more queues than the default so
1036 * do the accounting here when we're about to free them.
1038 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
1039 pf->queues_left += vf->num_queue_pairs -
1040 I40E_DEFAULT_QUEUES_PER_VF;
1043 /* free vsi & disconnect it from the parent uplink */
1044 if (vf->lan_vsi_idx) {
1045 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
1046 vf->lan_vsi_idx = 0;
1050 /* do the accounting and remove additional ADq VSI's */
1051 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
1052 for (j = 0; j < vf->num_tc; j++) {
1053 /* At this point VSI0 is already released so don't
1054 * release it again and only clear their values in
1055 * structure variables
1058 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
1059 vf->ch[j].vsi_idx = 0;
1060 vf->ch[j].vsi_id = 0;
1063 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
1065 /* disable interrupts so the VF starts in a known state */
1066 for (i = 0; i < msix_vf; i++) {
1067 /* format is same for both registers */
1069 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
1071 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
1074 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1078 /* clear the irq settings */
1079 for (i = 0; i < msix_vf; i++) {
1080 /* format is same for both registers */
1082 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
1084 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
1087 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
1088 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1089 wr32(hw, reg_idx, reg);
1092 /* reset some of the state variables keeping track of the resources */
1093 vf->num_queue_pairs = 0;
1094 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1095 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1100 * @vf: pointer to the VF info
1102 * allocate VF resources
1104 static int i40e_alloc_vf_res(struct i40e_vf *vf)
1106 struct i40e_pf *pf = vf->pf;
1107 int total_queue_pairs = 0;
1110 if (vf->num_req_queues &&
1111 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1112 pf->num_vf_qps = vf->num_req_queues;
1114 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1116 /* allocate hw vsi context & associated resources */
1117 ret = i40e_alloc_vsi_res(vf, 0);
1120 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1122 /* allocate additional VSIs based on tc information for ADq */
1123 if (vf->adq_enabled) {
1124 if (pf->queues_left >=
1125 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1126 /* TC 0 always belongs to VF VSI */
1127 for (idx = 1; idx < vf->num_tc; idx++) {
1128 ret = i40e_alloc_vsi_res(vf, idx);
1132 /* send correct number of queues */
1133 total_queue_pairs = I40E_MAX_VF_QUEUES;
1135 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1137 vf->adq_enabled = false;
1141 /* We account for each VF to get a default number of queue pairs. If
1142 * the VF has now requested more, we need to account for that to make
1143 * certain we never request more queues than we actually have left in
1146 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1148 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1151 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1153 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1155 /* store the total qps number for the runtime
1158 vf->num_queue_pairs = total_queue_pairs;
1160 /* VF is now completely initialized */
1161 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1165 i40e_free_vf_res(vf);
1170 #define VF_DEVICE_STATUS 0xAA
1171 #define VF_TRANS_PENDING_MASK 0x20
1173 * i40e_quiesce_vf_pci
1174 * @vf: pointer to the VF structure
1176 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1177 * if the transactions never clear.
1179 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1181 struct i40e_pf *pf = vf->pf;
1182 struct i40e_hw *hw = &pf->hw;
1186 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1188 wr32(hw, I40E_PF_PCI_CIAA,
1189 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1190 for (i = 0; i < 100; i++) {
1191 reg = rd32(hw, I40E_PF_PCI_CIAD);
1192 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1200 * __i40e_getnum_vf_vsi_vlan_filters
1201 * @vsi: pointer to the vsi
1203 * called to get the number of VLANs offloaded on this VF
1205 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1207 struct i40e_mac_filter *f;
1208 u16 num_vlans = 0, bkt;
1210 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1211 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1219 * i40e_getnum_vf_vsi_vlan_filters
1220 * @vsi: pointer to the vsi
1222 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
1224 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1228 spin_lock_bh(&vsi->mac_filter_hash_lock);
1229 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1230 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1236 * i40e_get_vlan_list_sync
1237 * @vsi: pointer to the VSI
1238 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1239 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1240 * This array is allocated here, but has to be freed in caller.
1242 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1244 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1247 struct i40e_mac_filter *f;
1251 spin_lock_bh(&vsi->mac_filter_hash_lock);
1252 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1253 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1257 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1258 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1260 (*vlan_list)[i++] = f->vlan;
1263 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1267 * i40e_set_vsi_promisc
1268 * @vf: pointer to the VF struct
1270 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1272 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1274 * @vl: List of VLANs - apply filter for given VLANs
1275 * @num_vlans: Number of elements in @vl
1278 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1279 bool unicast_enable, s16 *vl, u16 num_vlans)
1281 struct i40e_pf *pf = vf->pf;
1282 struct i40e_hw *hw = &pf->hw;
1283 int aq_ret, aq_tmp = 0;
1286 /* No VLAN to set promisc on, set on VSI */
1287 if (!num_vlans || !vl) {
1288 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1292 int aq_err = pf->hw.aq.asq_last_status;
1294 dev_err(&pf->pdev->dev,
1295 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1298 i40e_aq_str(&pf->hw, aq_err));
1303 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1308 int aq_err = pf->hw.aq.asq_last_status;
1310 dev_err(&pf->pdev->dev,
1311 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1314 i40e_aq_str(&pf->hw, aq_err));
1320 for (i = 0; i < num_vlans; i++) {
1321 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1325 int aq_err = pf->hw.aq.asq_last_status;
1327 dev_err(&pf->pdev->dev,
1328 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1331 i40e_aq_str(&pf->hw, aq_err));
1337 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1341 int aq_err = pf->hw.aq.asq_last_status;
1343 dev_err(&pf->pdev->dev,
1344 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1347 i40e_aq_str(&pf->hw, aq_err));
1361 * i40e_config_vf_promiscuous_mode
1362 * @vf: pointer to the VF info
1364 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1365 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1367 * Called from the VF to configure the promiscuous mode of
1368 * VF vsis and from the VF reset path to reset promiscuous mode.
1370 static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1375 struct i40e_pf *pf = vf->pf;
1376 struct i40e_vsi *vsi;
1381 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1382 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1385 if (vf->port_vlan_id) {
1386 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1387 alluni, &vf->port_vlan_id, 1);
1389 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1390 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1395 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1401 /* no VLANs to set on, set on VSI */
1402 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1408 * i40e_sync_vfr_reset
1409 * @hw: pointer to hw struct
1410 * @vf_id: VF identifier
1412 * Before trigger hardware reset, we need to know if no other process has
1413 * reserved the hardware for any reset operations. This check is done by
1414 * examining the status of the RSTAT1 register used to signal the reset.
1416 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
1421 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
1422 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
1423 I40E_VFINT_ICR0_ADMINQ_MASK;
1427 usleep_range(100, 200);
1434 * i40e_trigger_vf_reset
1435 * @vf: pointer to the VF structure
1436 * @flr: VFLR was issued or not
1438 * Trigger hardware to start a reset for a particular VF. Expects the caller
1439 * to wait the proper amount of time to allow hardware to reset the VF before
1440 * it cleans up and restores VF functionality.
1442 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1444 struct i40e_pf *pf = vf->pf;
1445 struct i40e_hw *hw = &pf->hw;
1446 u32 reg, reg_idx, bit_idx;
1451 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1453 /* Disable VF's configuration API during reset. The flag is re-enabled
1454 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1455 * It's normally disabled in i40e_free_vf_res(), but it's safer
1456 * to do it earlier to give some time to finish to any VF config
1457 * functions that may still be running at this point.
1459 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1461 /* In the case of a VFLR, the HW has already reset the VF and we
1462 * just need to clean up, so don't hit the VFRTRIG register.
1465 /* Sync VFR reset before trigger next one */
1466 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
1467 I40E_VFINT_ICR0_ADMINQ_MASK;
1468 if (vf_active && !radq)
1469 /* waiting for finish reset by virtual driver */
1470 if (i40e_sync_vfr_reset(hw, vf->vf_id))
1471 dev_info(&pf->pdev->dev,
1472 "Reset VF %d never finished\n",
1475 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting
1476 * in progress state in rstat1 register.
1478 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1479 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1480 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1483 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1484 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1485 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1486 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1489 if (i40e_quiesce_vf_pci(vf))
1490 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1495 * i40e_cleanup_reset_vf
1496 * @vf: pointer to the VF structure
1498 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1499 * have verified whether the reset is finished properly, and ensure the
1500 * minimum amount of wait time has passed.
1502 static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1504 struct i40e_pf *pf = vf->pf;
1505 struct i40e_hw *hw = &pf->hw;
1508 /* disable promisc modes in case they were enabled */
1509 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1511 /* free VF resources to begin resetting the VSI state */
1512 i40e_free_vf_res(vf);
1514 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1515 * By doing this we allow HW to access VF memory at any point. If we
1516 * did it any sooner, HW could access memory while it was being freed
1517 * in i40e_free_vf_res(), causing an IOMMU fault.
1519 * On the other hand, this needs to be done ASAP, because the VF driver
1520 * is waiting for this to happen and may report a timeout. It's
1521 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1524 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1525 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1526 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1528 /* reallocate VF resources to finish resetting the VSI state */
1529 if (!i40e_alloc_vf_res(vf)) {
1530 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1531 i40e_enable_vf_mappings(vf);
1532 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1533 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1534 /* Do not notify the client during VF init */
1535 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1537 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1541 /* Tell the VF driver the reset is done. This needs to be done only
1542 * after VF has been fully initialized, because the VF driver may
1543 * request resources immediately after setting this flag.
1545 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1550 * @vf: pointer to the VF structure
1551 * @flr: VFLR was issued or not
1553 * Returns true if the VF is in reset, resets successfully, or resets
1554 * are disabled and false otherwise.
1556 bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1558 struct i40e_pf *pf = vf->pf;
1559 struct i40e_hw *hw = &pf->hw;
1564 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))
1567 /* Bail out if VFs are disabled. */
1568 if (test_bit(__I40E_VF_DISABLE, pf->state))
1571 /* If VF is being reset already we don't need to continue. */
1572 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1575 i40e_trigger_vf_reset(vf, flr);
1577 /* poll VPGEN_VFRSTAT reg to make sure
1578 * that reset is complete
1580 for (i = 0; i < 10; i++) {
1581 /* VF reset requires driver to first reset the VF and then
1582 * poll the status register to make sure that the reset
1583 * completed successfully. Due to internal HW FIFO flushes,
1584 * we must wait 10ms before the register will be valid.
1586 usleep_range(10000, 20000);
1587 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1588 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1595 usleep_range(10000, 20000);
1598 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1600 usleep_range(10000, 20000);
1602 /* On initial reset, we don't have any queues to disable */
1603 if (vf->lan_vsi_idx != 0)
1604 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1606 i40e_cleanup_reset_vf(vf);
1609 usleep_range(20000, 40000);
1610 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);
1616 * i40e_reset_all_vfs
1617 * @pf: pointer to the PF structure
1618 * @flr: VFLR was issued or not
1620 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1621 * VF, then do all the waiting in one chunk, and finally finish restoring each
1622 * VF after the wait. This is useful during PF routines which need to reset
1623 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1625 * Returns true if any VFs were reset, and false otherwise.
1627 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1629 struct i40e_hw *hw = &pf->hw;
1634 /* If we don't have any VFs, then there is nothing to reset */
1635 if (!pf->num_alloc_vfs)
1638 /* If VFs have been disabled, there is no need to reset */
1639 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1642 /* Begin reset on all VFs at once */
1643 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1644 /* If VF is being reset no need to trigger reset again */
1645 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1646 i40e_trigger_vf_reset(vf, flr);
1649 /* HW requires some time to make sure it can flush the FIFO for a VF
1650 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1651 * sequence to make sure that it has completed. We'll keep track of
1652 * the VFs using a simple iterator that increments once that VF has
1653 * finished resetting.
1655 for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) {
1656 usleep_range(10000, 20000);
1658 /* Check each VF in sequence, beginning with the VF to fail
1659 * the previous check.
1661 while (vf < &pf->vf[pf->num_alloc_vfs]) {
1662 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
1663 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1664 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1668 /* If the current VF has finished resetting, move on
1669 * to the next VF in sequence.
1676 usleep_range(10000, 20000);
1678 /* Display a warning if at least one VF didn't manage to reset in
1679 * time, but continue on with the operation.
1681 if (vf < &pf->vf[pf->num_alloc_vfs])
1682 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1684 usleep_range(10000, 20000);
1686 /* Begin disabling all the rings associated with VFs, but do not wait
1689 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1690 /* On initial reset, we don't have any queues to disable */
1691 if (vf->lan_vsi_idx == 0)
1694 /* If VF is reset in another thread just continue */
1695 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1698 i40e_vsi_stop_rings_no_wait(pf->vsi[vf->lan_vsi_idx]);
1701 /* Now that we've notified HW to disable all of the VF rings, wait
1702 * until they finish.
1704 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1705 /* On initial reset, we don't have any queues to disable */
1706 if (vf->lan_vsi_idx == 0)
1709 /* If VF is reset in another thread just continue */
1710 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1713 i40e_vsi_wait_queues_disabled(pf->vsi[vf->lan_vsi_idx]);
1716 /* Hw may need up to 50ms to finish disabling the RX queues. We
1717 * minimize the wait by delaying only once for all VFs.
1721 /* Finish the reset on each VF */
1722 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1723 /* If VF is reset in another thread just continue */
1724 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1727 i40e_cleanup_reset_vf(vf);
1731 usleep_range(20000, 40000);
1732 clear_bit(__I40E_VF_DISABLE, pf->state);
1739 * @pf: pointer to the PF structure
1743 void i40e_free_vfs(struct i40e_pf *pf)
1745 struct i40e_hw *hw = &pf->hw;
1746 u32 reg_idx, bit_idx;
1752 set_bit(__I40E_VFS_RELEASING, pf->state);
1753 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1754 usleep_range(1000, 2000);
1756 i40e_notify_client_of_vf_enable(pf, 0);
1758 /* Disable IOV before freeing resources. This lets any VF drivers
1759 * running in the host get themselves cleaned up before we yank
1760 * the carpet out from underneath their feet.
1762 if (!pci_vfs_assigned(pf->pdev))
1763 pci_disable_sriov(pf->pdev);
1765 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1767 /* Amortize wait time by stopping all VFs at the same time */
1768 for (i = 0; i < pf->num_alloc_vfs; i++) {
1769 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1772 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1775 for (i = 0; i < pf->num_alloc_vfs; i++) {
1776 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1779 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1782 /* free up VF resources */
1783 tmp = pf->num_alloc_vfs;
1784 pf->num_alloc_vfs = 0;
1785 for (i = 0; i < tmp; i++) {
1786 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1787 i40e_free_vf_res(&pf->vf[i]);
1788 /* disable qp mappings */
1789 i40e_disable_vf_mappings(&pf->vf[i]);
1795 /* This check is for when the driver is unloaded while VFs are
1796 * assigned. Setting the number of VFs to 0 through sysfs is caught
1797 * before this function ever gets called.
1799 if (!pci_vfs_assigned(pf->pdev)) {
1800 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1801 * work correctly when SR-IOV gets re-enabled.
1803 for (vf_id = 0; vf_id < tmp; vf_id++) {
1804 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1805 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1806 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1809 clear_bit(__I40E_VF_DISABLE, pf->state);
1810 clear_bit(__I40E_VFS_RELEASING, pf->state);
1813 #ifdef CONFIG_PCI_IOV
1816 * @pf: pointer to the PF structure
1817 * @num_alloc_vfs: number of VFs to allocate
1819 * allocate VF resources
1821 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1823 struct i40e_vf *vfs;
1826 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1827 i40e_irq_dynamic_disable_icr0(pf);
1829 /* Check to see if we're just allocating resources for extant VFs */
1830 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1831 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1833 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1834 pf->num_alloc_vfs = 0;
1838 /* allocate memory */
1839 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1846 /* apply default profile */
1847 for (i = 0; i < num_alloc_vfs; i++) {
1849 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1852 /* assign default capabilities */
1853 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1854 vfs[i].spoofchk = true;
1856 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1859 pf->num_alloc_vfs = num_alloc_vfs;
1861 /* VF resources get allocated during reset */
1862 i40e_reset_all_vfs(pf, false);
1864 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1870 /* Re-enable interrupt 0. */
1871 i40e_irq_dynamic_enable_icr0(pf);
1877 * i40e_pci_sriov_enable
1878 * @pdev: pointer to a pci_dev structure
1879 * @num_vfs: number of VFs to allocate
1881 * Enable or change the number of VFs
1883 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1885 #ifdef CONFIG_PCI_IOV
1886 struct i40e_pf *pf = pci_get_drvdata(pdev);
1887 int pre_existing_vfs = pci_num_vf(pdev);
1890 if (test_bit(__I40E_TESTING, pf->state)) {
1891 dev_warn(&pdev->dev,
1892 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1897 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1899 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1902 if (num_vfs > pf->num_req_vfs) {
1903 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1904 num_vfs, pf->num_req_vfs);
1909 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1910 err = i40e_alloc_vfs(pf, num_vfs);
1912 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1926 * i40e_pci_sriov_configure
1927 * @pdev: pointer to a pci_dev structure
1928 * @num_vfs: number of VFs to allocate
1930 * Enable or change the number of VFs. Called when the user updates the number
1933 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1935 struct i40e_pf *pf = pci_get_drvdata(pdev);
1938 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1939 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1944 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
1945 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1946 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1948 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1949 goto sriov_configure_out;
1952 if (!pci_vfs_assigned(pf->pdev)) {
1954 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1955 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1957 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1959 goto sriov_configure_out;
1961 sriov_configure_out:
1962 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1966 /***********************virtual channel routines******************/
1969 * i40e_vc_send_msg_to_vf
1970 * @vf: pointer to the VF info
1971 * @v_opcode: virtual channel opcode
1972 * @v_retval: virtual channel return value
1973 * @msg: pointer to the msg buffer
1974 * @msglen: msg length
1978 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1979 u32 v_retval, u8 *msg, u16 msglen)
1986 /* validate the request */
1987 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1992 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1994 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1997 dev_info(&pf->pdev->dev,
1998 "Unable to send the message to VF %d aq_err %d\n",
1999 vf->vf_id, pf->hw.aq.asq_last_status);
2007 * i40e_vc_send_resp_to_vf
2008 * @vf: pointer to the VF info
2009 * @opcode: operation code
2010 * @retval: return value
2012 * send resp msg to VF
2014 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
2015 enum virtchnl_ops opcode,
2018 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
2022 * i40e_sync_vf_state
2023 * @vf: pointer to the VF info
2026 * Called from a VF message to synchronize the service with a potential
2029 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
2033 /* When handling some messages, it needs VF state to be set.
2034 * It is possible that this flag is cleared during VF reset,
2035 * so there is a need to wait until the end of the reset to
2036 * handle the request message correctly.
2038 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
2039 if (test_bit(state, &vf->vf_states))
2041 usleep_range(10000, 20000);
2044 return test_bit(state, &vf->vf_states);
2048 * i40e_vc_get_version_msg
2049 * @vf: pointer to the VF info
2050 * @msg: pointer to the msg buffer
2052 * called from the VF to request the API version used by the PF
2054 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2056 struct virtchnl_version_info info = {
2057 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2060 vf->vf_ver = *(struct virtchnl_version_info *)msg;
2061 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2062 if (VF_IS_V10(&vf->vf_ver))
2063 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2064 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
2066 sizeof(struct virtchnl_version_info));
2070 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
2071 * @vf: pointer to VF structure
2073 static void i40e_del_qch(struct i40e_vf *vf)
2075 struct i40e_pf *pf = vf->pf;
2078 /* first element in the array belongs to primary VF VSI and we shouldn't
2079 * delete it. We should however delete the rest of the VSIs created
2081 for (i = 1; i < vf->num_tc; i++) {
2082 if (vf->ch[i].vsi_idx) {
2083 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
2084 vf->ch[i].vsi_idx = 0;
2085 vf->ch[i].vsi_id = 0;
2091 * i40e_vc_get_max_frame_size
2092 * @vf: pointer to the VF
2094 * Max frame size is determined based on the current port's max frame size and
2095 * whether a port VLAN is configured on this VF. The VF is not aware whether
2096 * it's in a port VLAN so the PF needs to account for this in max frame size
2097 * checks and sending the max frame size to the VF.
2099 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
2101 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
2103 if (vf->port_vlan_id)
2104 max_frame_size -= VLAN_HLEN;
2106 return max_frame_size;
2110 * i40e_vc_get_vf_resources_msg
2111 * @vf: pointer to the VF info
2112 * @msg: pointer to the msg buffer
2114 * called from the VF to request its resources
2116 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2118 struct virtchnl_vf_resource *vfres = NULL;
2119 struct i40e_pf *pf = vf->pf;
2120 struct i40e_vsi *vsi;
2126 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
2131 len = virtchnl_struct_size(vfres, vsi_res, num_vsis);
2132 vfres = kzalloc(len, GFP_KERNEL);
2138 if (VF_IS_V11(&vf->vf_ver))
2139 vf->driver_caps = *(u32 *)msg;
2141 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2142 VIRTCHNL_VF_OFFLOAD_RSS_REG |
2143 VIRTCHNL_VF_OFFLOAD_VLAN;
2145 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2146 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2147 vsi = pf->vsi[vf->lan_vsi_idx];
2148 if (!vsi->info.pvid)
2149 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2151 if (i40e_vf_client_capable(pf, vf->vf_id) &&
2152 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) {
2153 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA;
2154 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2156 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2159 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2160 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2162 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&
2163 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2164 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2166 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2169 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {
2170 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2171 vfres->vf_cap_flags |=
2172 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2175 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2176 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2178 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
2179 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2180 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2182 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2183 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
2184 dev_err(&pf->pdev->dev,
2185 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2190 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2193 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {
2194 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2195 vfres->vf_cap_flags |=
2196 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2199 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2200 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2202 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2203 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2205 vfres->num_vsis = num_vsis;
2206 vfres->num_queue_pairs = vf->num_queue_pairs;
2207 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2208 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2209 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2210 vfres->max_mtu = i40e_vc_get_max_frame_size(vf);
2212 if (vf->lan_vsi_idx) {
2213 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2214 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2215 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2216 /* VFs only use TC 0 */
2217 vfres->vsi_res[0].qset_handle
2218 = le16_to_cpu(vsi->info.qs_handle[0]);
2219 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {
2220 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2221 eth_zero_addr(vf->default_lan_addr.addr);
2223 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2224 vf->default_lan_addr.addr);
2226 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2229 /* send the response back to the VF */
2230 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2231 aq_ret, (u8 *)vfres, len);
2238 * i40e_vc_config_promiscuous_mode_msg
2239 * @vf: pointer to the VF info
2240 * @msg: pointer to the msg buffer
2242 * called from the VF to configure the promiscuous mode of
2245 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2247 struct virtchnl_promisc_info *info =
2248 (struct virtchnl_promisc_info *)msg;
2249 struct i40e_pf *pf = vf->pf;
2250 bool allmulti = false;
2251 bool alluni = false;
2254 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2258 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2259 dev_err(&pf->pdev->dev,
2260 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2263 /* Lie to the VF on purpose, because this is an error we can
2264 * ignore. Unprivileged VF is not a virtual channel error.
2270 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2275 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2280 /* Multicast promiscuous handling*/
2281 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2284 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2286 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2292 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2294 dev_info(&pf->pdev->dev,
2295 "VF %d successfully set multicast promiscuous mode\n",
2297 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2299 dev_info(&pf->pdev->dev,
2300 "VF %d successfully unset multicast promiscuous mode\n",
2304 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2306 dev_info(&pf->pdev->dev,
2307 "VF %d successfully set unicast promiscuous mode\n",
2309 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2311 dev_info(&pf->pdev->dev,
2312 "VF %d successfully unset unicast promiscuous mode\n",
2316 /* send the response to the VF */
2317 return i40e_vc_send_resp_to_vf(vf,
2318 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2323 * i40e_vc_config_queues_msg
2324 * @vf: pointer to the VF info
2325 * @msg: pointer to the msg buffer
2327 * called from the VF to configure the rx/tx
2330 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2332 struct virtchnl_vsi_queue_config_info *qci =
2333 (struct virtchnl_vsi_queue_config_info *)msg;
2334 struct virtchnl_queue_pair_info *qpi;
2335 u16 vsi_id, vsi_queue_id = 0;
2336 struct i40e_pf *pf = vf->pf;
2337 int i, j = 0, idx = 0;
2338 struct i40e_vsi *vsi;
2339 u16 num_qps_all = 0;
2342 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2347 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2352 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2357 if (vf->adq_enabled) {
2358 for (i = 0; i < vf->num_tc; i++)
2359 num_qps_all += vf->ch[i].num_qps;
2360 if (num_qps_all != qci->num_queue_pairs) {
2366 vsi_id = qci->vsi_id;
2368 for (i = 0; i < qci->num_queue_pairs; i++) {
2369 qpi = &qci->qpair[i];
2371 if (!vf->adq_enabled) {
2372 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2373 qpi->txq.queue_id)) {
2378 vsi_queue_id = qpi->txq.queue_id;
2380 if (qpi->txq.vsi_id != qci->vsi_id ||
2381 qpi->rxq.vsi_id != qci->vsi_id ||
2382 qpi->rxq.queue_id != vsi_queue_id) {
2388 if (vf->adq_enabled) {
2389 if (idx >= ARRAY_SIZE(vf->ch)) {
2393 vsi_id = vf->ch[idx].vsi_id;
2396 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2398 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2404 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2405 * VF does not know about these additional VSIs and all
2406 * it cares is about its own queues. PF configures these queues
2407 * to its appropriate VSIs based on TC mapping
2409 if (vf->adq_enabled) {
2410 if (idx >= ARRAY_SIZE(vf->ch)) {
2414 if (j == (vf->ch[idx].num_qps - 1)) {
2416 j = 0; /* resetting the queue count */
2424 /* set vsi num_queue_pairs in use to num configured by VF */
2425 if (!vf->adq_enabled) {
2426 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2427 qci->num_queue_pairs;
2429 for (i = 0; i < vf->num_tc; i++) {
2430 vsi = pf->vsi[vf->ch[i].vsi_idx];
2431 vsi->num_queue_pairs = vf->ch[i].num_qps;
2433 if (i40e_update_adq_vsi_queues(vsi, i)) {
2441 /* send the response to the VF */
2442 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2447 * i40e_validate_queue_map - check queue map is valid
2448 * @vf: the VF structure pointer
2450 * @queuemap: Tx or Rx queue map
2452 * check if Tx or Rx queue map is valid
2454 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2455 unsigned long queuemap)
2457 u16 vsi_queue_id, queue_id;
2459 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2460 if (vf->adq_enabled) {
2461 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2462 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2464 queue_id = vsi_queue_id;
2467 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2475 * i40e_vc_config_irq_map_msg
2476 * @vf: pointer to the VF info
2477 * @msg: pointer to the msg buffer
2479 * called from the VF to configure the irq to
2482 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2484 struct virtchnl_irq_map_info *irqmap_info =
2485 (struct virtchnl_irq_map_info *)msg;
2486 struct virtchnl_vector_map *map;
2491 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2496 if (irqmap_info->num_vectors >
2497 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2502 for (i = 0; i < irqmap_info->num_vectors; i++) {
2503 map = &irqmap_info->vecmap[i];
2504 /* validate msg params */
2505 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2506 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2510 vsi_id = map->vsi_id;
2512 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2517 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2522 i40e_config_irq_link_list(vf, vsi_id, map);
2525 /* send the response to the VF */
2526 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2531 * i40e_ctrl_vf_tx_rings
2532 * @vsi: the SRIOV VSI being configured
2533 * @q_map: bit map of the queues to be enabled
2534 * @enable: start or stop the queue
2536 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2539 struct i40e_pf *pf = vsi->back;
2543 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2544 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2545 vsi->base_queue + q_id,
2546 false /*is xdp*/, enable);
2554 * i40e_ctrl_vf_rx_rings
2555 * @vsi: the SRIOV VSI being configured
2556 * @q_map: bit map of the queues to be enabled
2557 * @enable: start or stop the queue
2559 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2562 struct i40e_pf *pf = vsi->back;
2566 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2567 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2576 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2577 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2579 * Returns true if validation was successful, else false.
2581 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2583 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2584 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2585 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2592 * i40e_vc_enable_queues_msg
2593 * @vf: pointer to the VF info
2594 * @msg: pointer to the msg buffer
2596 * called from the VF to enable all or specific queue(s)
2598 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2600 struct virtchnl_queue_select *vqs =
2601 (struct virtchnl_queue_select *)msg;
2602 struct i40e_pf *pf = vf->pf;
2606 if (vf->is_disabled_from_host) {
2608 dev_info(&pf->pdev->dev,
2609 "Admin has disabled VF %d, will not enable queues\n",
2614 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2619 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2624 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2629 /* Use the queue bit map sent by the VF */
2630 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2635 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2641 /* need to start the rings for additional ADq VSI's as well */
2642 if (vf->adq_enabled) {
2643 /* zero belongs to LAN VSI */
2644 for (i = 1; i < vf->num_tc; i++) {
2645 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2651 /* send the response to the VF */
2652 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2657 * i40e_vc_disable_queues_msg
2658 * @vf: pointer to the VF info
2659 * @msg: pointer to the msg buffer
2661 * called from the VF to disable all or specific
2664 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2666 struct virtchnl_queue_select *vqs =
2667 (struct virtchnl_queue_select *)msg;
2668 struct i40e_pf *pf = vf->pf;
2671 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2676 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2681 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2686 /* Use the queue bit map sent by the VF */
2687 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2692 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2698 /* send the response to the VF */
2699 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2704 * i40e_check_enough_queue - find big enough queue number
2705 * @vf: pointer to the VF info
2706 * @needed: the number of items needed
2708 * Returns the base item index of the queue, or negative for error
2710 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2712 unsigned int i, cur_queues, more, pool_size;
2713 struct i40e_lump_tracking *pile;
2714 struct i40e_pf *pf = vf->pf;
2715 struct i40e_vsi *vsi;
2717 vsi = pf->vsi[vf->lan_vsi_idx];
2718 cur_queues = vsi->alloc_queue_pairs;
2720 /* if current allocated queues are enough for need */
2721 if (cur_queues >= needed)
2722 return vsi->base_queue;
2725 if (cur_queues > 0) {
2726 /* if the allocated queues are not zero
2727 * just check if there are enough queues for more
2728 * behind the allocated queues.
2730 more = needed - cur_queues;
2731 for (i = vsi->base_queue + cur_queues;
2732 i < pile->num_entries; i++) {
2733 if (pile->list[i] & I40E_PILE_VALID_BIT)
2737 /* there is enough */
2738 return vsi->base_queue;
2743 for (i = 0; i < pile->num_entries; i++) {
2744 if (pile->list[i] & I40E_PILE_VALID_BIT) {
2748 if (needed <= ++pool_size)
2749 /* there is enough */
2757 * i40e_vc_request_queues_msg
2758 * @vf: pointer to the VF info
2759 * @msg: pointer to the msg buffer
2761 * VFs get a default number of queues but can use this message to request a
2762 * different number. If the request is successful, PF will reset the VF and
2763 * return 0. If unsuccessful, PF will send message informing VF of number of
2764 * available queues and return result of sending VF a message.
2766 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2768 struct virtchnl_vf_res_request *vfres =
2769 (struct virtchnl_vf_res_request *)msg;
2770 u16 req_pairs = vfres->num_queue_pairs;
2771 u8 cur_pairs = vf->num_queue_pairs;
2772 struct i40e_pf *pf = vf->pf;
2774 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
2777 if (req_pairs > I40E_MAX_VF_QUEUES) {
2778 dev_err(&pf->pdev->dev,
2779 "VF %d tried to request more than %d queues.\n",
2781 I40E_MAX_VF_QUEUES);
2782 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2783 } else if (req_pairs - cur_pairs > pf->queues_left) {
2784 dev_warn(&pf->pdev->dev,
2785 "VF %d requested %d more queues, but only %d left.\n",
2787 req_pairs - cur_pairs,
2789 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2790 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
2791 dev_warn(&pf->pdev->dev,
2792 "VF %d requested %d more queues, but there is not enough for it.\n",
2794 req_pairs - cur_pairs);
2795 vfres->num_queue_pairs = cur_pairs;
2797 /* successful request */
2798 vf->num_req_queues = req_pairs;
2799 i40e_vc_reset_vf(vf, true);
2803 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2804 (u8 *)vfres, sizeof(*vfres));
2808 * i40e_vc_get_stats_msg
2809 * @vf: pointer to the VF info
2810 * @msg: pointer to the msg buffer
2812 * called from the VF to get vsi stats
2814 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2816 struct virtchnl_queue_select *vqs =
2817 (struct virtchnl_queue_select *)msg;
2818 struct i40e_pf *pf = vf->pf;
2819 struct i40e_eth_stats stats;
2821 struct i40e_vsi *vsi;
2823 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2825 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2830 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2835 vsi = pf->vsi[vf->lan_vsi_idx];
2840 i40e_update_eth_stats(vsi);
2841 stats = vsi->eth_stats;
2844 /* send the response back to the VF */
2845 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2846 (u8 *)&stats, sizeof(stats));
2850 * i40e_can_vf_change_mac
2851 * @vf: pointer to the VF info
2853 * Return true if the VF is allowed to change its MAC filters, false otherwise
2855 static bool i40e_can_vf_change_mac(struct i40e_vf *vf)
2857 /* If the VF MAC address has been set administratively (via the
2858 * ndo_set_vf_mac command), then deny permission to the VF to
2859 * add/delete unicast MAC addresses, unless the VF is trusted
2861 if (vf->pf_set_mac && !vf->trusted)
2867 #define I40E_MAX_MACVLAN_PER_HW 3072
2868 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2870 /* If the VF is not trusted restrict the number of MAC/VLAN it can program
2871 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2873 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2874 #define I40E_VC_MAX_VLAN_PER_VF 16
2876 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2877 ({ typeof(vf_num) vf_num_ = (vf_num); \
2878 typeof(num_ports) num_ports_ = (num_ports); \
2879 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2880 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2881 I40E_VC_MAX_MAC_ADDR_PER_VF; })
2883 * i40e_check_vf_permission
2884 * @vf: pointer to the VF info
2885 * @al: MAC address list from virtchnl
2887 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2888 * if any address in the list is not valid. Checks the following conditions:
2890 * 1) broadcast and zero addresses are never valid
2891 * 2) unicast addresses are not allowed if the VMM has administratively set
2892 * the VF MAC address, unless the VF is marked as privileged.
2893 * 3) There is enough space to add all the addresses.
2895 * Note that to guarantee consistency, it is expected this function be called
2896 * while holding the mac_filter_hash_lock, as otherwise the current number of
2897 * addresses might not be accurate.
2899 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2900 struct virtchnl_ether_addr_list *al)
2902 struct i40e_pf *pf = vf->pf;
2903 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2904 struct i40e_hw *hw = &pf->hw;
2905 int mac2add_cnt = 0;
2908 for (i = 0; i < al->num_elements; i++) {
2909 struct i40e_mac_filter *f;
2910 u8 *addr = al->list[i].addr;
2912 if (is_broadcast_ether_addr(addr) ||
2913 is_zero_ether_addr(addr)) {
2914 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2919 /* If the host VMM administrator has set the VF MAC address
2920 * administratively via the ndo_set_vf_mac command then deny
2921 * permission to the VF to add or delete unicast MAC addresses.
2922 * Unless the VF is privileged and then it can do whatever.
2923 * The VF may request to set the MAC address filter already
2924 * assigned to it so do not return an error in that case.
2926 if (!i40e_can_vf_change_mac(vf) &&
2927 !is_multicast_ether_addr(addr) &&
2928 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2929 dev_err(&pf->pdev->dev,
2930 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2934 /*count filters that really will be added*/
2935 f = i40e_find_mac(vsi, addr);
2940 /* If this VF is not privileged, then we can't add more than a limited
2941 * number of addresses. Check to make sure that the additions do not
2942 * push us over the limit.
2944 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2945 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2946 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2947 dev_err(&pf->pdev->dev,
2948 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2951 /* If this VF is trusted, it can use more resources than untrusted.
2952 * However to ensure that every trusted VF has appropriate number of
2953 * resources, divide whole pool of resources per port and then across
2957 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2958 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2960 dev_err(&pf->pdev->dev,
2961 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2969 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr
2970 * @vc_ether_addr: used to extract the type
2973 i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
2975 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;
2979 * i40e_is_vc_addr_legacy
2980 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2982 * check if the MAC address is from an older VF
2985 i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
2987 return i40e_vc_ether_addr_type(vc_ether_addr) ==
2988 VIRTCHNL_ETHER_ADDR_LEGACY;
2992 * i40e_is_vc_addr_primary
2993 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2995 * check if the MAC address is the VF's primary MAC
2996 * This function should only be called when the MAC address in
2997 * virtchnl_ether_addr is a valid unicast MAC
3000 i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)
3002 return i40e_vc_ether_addr_type(vc_ether_addr) ==
3003 VIRTCHNL_ETHER_ADDR_PRIMARY;
3007 * i40e_update_vf_mac_addr
3009 * @vc_ether_addr: structure from VIRTCHNL with MAC to add
3011 * update the VF's cached hardware MAC if allowed
3014 i40e_update_vf_mac_addr(struct i40e_vf *vf,
3015 struct virtchnl_ether_addr *vc_ether_addr)
3017 u8 *mac_addr = vc_ether_addr->addr;
3019 if (!is_valid_ether_addr(mac_addr))
3022 /* If request to add MAC filter is a primary request update its default
3023 * MAC address with the requested one. If it is a legacy request then
3024 * check if current default is empty if so update the default MAC
3026 if (i40e_is_vc_addr_primary(vc_ether_addr)) {
3027 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3028 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) {
3029 if (is_zero_ether_addr(vf->default_lan_addr.addr))
3030 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3035 * i40e_vc_add_mac_addr_msg
3036 * @vf: pointer to the VF info
3037 * @msg: pointer to the msg buffer
3039 * add guest mac address filter
3041 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3043 struct virtchnl_ether_addr_list *al =
3044 (struct virtchnl_ether_addr_list *)msg;
3045 struct i40e_pf *pf = vf->pf;
3046 struct i40e_vsi *vsi = NULL;
3050 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3051 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3056 vsi = pf->vsi[vf->lan_vsi_idx];
3058 /* Lock once, because all function inside for loop accesses VSI's
3059 * MAC filter list which needs to be protected using same lock.
3061 spin_lock_bh(&vsi->mac_filter_hash_lock);
3063 ret = i40e_check_vf_permission(vf, al);
3065 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3069 /* add new addresses to the list */
3070 for (i = 0; i < al->num_elements; i++) {
3071 struct i40e_mac_filter *f;
3073 f = i40e_find_mac(vsi, al->list[i].addr);
3075 f = i40e_add_mac_filter(vsi, al->list[i].addr);
3078 dev_err(&pf->pdev->dev,
3079 "Unable to add MAC filter %pM for VF %d\n",
3080 al->list[i].addr, vf->vf_id);
3082 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3086 i40e_update_vf_mac_addr(vf, &al->list[i]);
3088 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3090 /* program the updated filter list */
3091 ret = i40e_sync_vsi_filters(vsi);
3093 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3097 /* send the response to the VF */
3098 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3103 * i40e_vc_del_mac_addr_msg
3104 * @vf: pointer to the VF info
3105 * @msg: pointer to the msg buffer
3107 * remove guest mac address filter
3109 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3111 struct virtchnl_ether_addr_list *al =
3112 (struct virtchnl_ether_addr_list *)msg;
3113 bool was_unimac_deleted = false;
3114 struct i40e_pf *pf = vf->pf;
3115 struct i40e_vsi *vsi = NULL;
3119 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3120 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3125 for (i = 0; i < al->num_elements; i++) {
3126 if (is_broadcast_ether_addr(al->list[i].addr) ||
3127 is_zero_ether_addr(al->list[i].addr)) {
3128 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
3129 al->list[i].addr, vf->vf_id);
3134 vsi = pf->vsi[vf->lan_vsi_idx];
3136 spin_lock_bh(&vsi->mac_filter_hash_lock);
3137 /* delete addresses from the list */
3138 for (i = 0; i < al->num_elements; i++) {
3139 const u8 *addr = al->list[i].addr;
3141 /* Allow to delete VF primary MAC only if it was not set
3142 * administratively by PF or if VF is trusted.
3144 if (ether_addr_equal(addr, vf->default_lan_addr.addr)) {
3145 if (i40e_can_vf_change_mac(vf))
3146 was_unimac_deleted = true;
3151 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
3153 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3158 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3160 if (was_unimac_deleted)
3161 eth_zero_addr(vf->default_lan_addr.addr);
3163 /* program the updated filter list */
3164 ret = i40e_sync_vsi_filters(vsi);
3166 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3169 if (vf->trusted && was_unimac_deleted) {
3170 struct i40e_mac_filter *f;
3171 struct hlist_node *h;
3175 /* set last unicast mac address as default */
3176 spin_lock_bh(&vsi->mac_filter_hash_lock);
3177 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3178 if (is_valid_ether_addr(f->macaddr))
3179 macaddr = f->macaddr;
3182 ether_addr_copy(vf->default_lan_addr.addr, macaddr);
3183 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3186 /* send the response to the VF */
3187 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
3191 * i40e_vc_add_vlan_msg
3192 * @vf: pointer to the VF info
3193 * @msg: pointer to the msg buffer
3195 * program guest vlan id
3197 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3199 struct virtchnl_vlan_filter_list *vfl =
3200 (struct virtchnl_vlan_filter_list *)msg;
3201 struct i40e_pf *pf = vf->pf;
3202 struct i40e_vsi *vsi = NULL;
3206 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3207 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3208 dev_err(&pf->pdev->dev,
3209 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3212 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3213 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3218 for (i = 0; i < vfl->num_elements; i++) {
3219 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3221 dev_err(&pf->pdev->dev,
3222 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3226 vsi = pf->vsi[vf->lan_vsi_idx];
3227 if (vsi->info.pvid) {
3232 i40e_vlan_stripping_enable(vsi);
3233 for (i = 0; i < vfl->num_elements; i++) {
3234 /* add new VLAN filter */
3235 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
3239 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3240 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3244 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3245 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3251 dev_err(&pf->pdev->dev,
3252 "Unable to add VLAN filter %d for VF %d, error %d\n",
3253 vfl->vlan_id[i], vf->vf_id, ret);
3257 /* send the response to the VF */
3258 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
3262 * i40e_vc_remove_vlan_msg
3263 * @vf: pointer to the VF info
3264 * @msg: pointer to the msg buffer
3266 * remove programmed guest vlan id
3268 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3270 struct virtchnl_vlan_filter_list *vfl =
3271 (struct virtchnl_vlan_filter_list *)msg;
3272 struct i40e_pf *pf = vf->pf;
3273 struct i40e_vsi *vsi = NULL;
3277 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3278 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3283 for (i = 0; i < vfl->num_elements; i++) {
3284 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3290 vsi = pf->vsi[vf->lan_vsi_idx];
3291 if (vsi->info.pvid) {
3292 if (vfl->num_elements > 1 || vfl->vlan_id[0])
3297 for (i = 0; i < vfl->num_elements; i++) {
3298 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
3301 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3302 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3306 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3307 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3314 /* send the response to the VF */
3315 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
3320 * @vf: pointer to the VF info
3321 * @msg: pointer to the msg buffer
3322 * @msglen: msg length
3324 * called from the VF for the iwarp msgs
3326 static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3328 struct i40e_pf *pf = vf->pf;
3329 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3332 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3333 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3338 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
3342 /* send the response to the VF */
3343 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA,
3348 * i40e_vc_rdma_qvmap_msg
3349 * @vf: pointer to the VF info
3350 * @msg: pointer to the msg buffer
3351 * @config: config qvmap or release it
3353 * called from the VF for the iwarp msgs
3355 static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3357 struct virtchnl_rdma_qvlist_info *qvlist_info =
3358 (struct virtchnl_rdma_qvlist_info *)msg;
3361 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3362 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3368 if (i40e_config_rdma_qvlist(vf, qvlist_info))
3371 i40e_release_rdma_qvlist(vf);
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,
3383 * i40e_vc_config_rss_key
3384 * @vf: pointer to the VF info
3385 * @msg: pointer to the msg buffer
3387 * Configure the VF's RSS key
3389 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
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;
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) {
3404 vsi = pf->vsi[vf->lan_vsi_idx];
3405 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3407 /* send the response to the VF */
3408 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3413 * i40e_vc_config_rss_lut
3414 * @vf: pointer to the VF info
3415 * @msg: pointer to the msg buffer
3417 * Configure the VF's RSS LUT
3419 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
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;
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) {
3435 for (i = 0; i < vrl->lut_entries; i++)
3436 if (vrl->lut[i] >= vf->num_queue_pairs) {
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 */
3445 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3450 * i40e_vc_get_rss_hena
3451 * @vf: pointer to the VF info
3452 * @msg: pointer to the msg buffer
3454 * Return the RSS HENA bits allowed by the hardware
3456 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3458 struct virtchnl_rss_hena *vrh = NULL;
3459 struct i40e_pf *pf = vf->pf;
3463 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3467 len = sizeof(struct virtchnl_rss_hena);
3469 vrh = kzalloc(len, GFP_KERNEL);
3475 vrh->hena = i40e_pf_get_default_rss_hena(pf);
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);
3485 * i40e_vc_set_rss_hena
3486 * @vf: pointer to the VF info
3487 * @msg: pointer to the msg buffer
3489 * Set the RSS HENA bits for the VF
3491 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
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;
3499 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
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));
3507 /* send the response to the VF */
3509 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3513 * i40e_vc_enable_vlan_stripping
3514 * @vf: pointer to the VF info
3515 * @msg: pointer to the msg buffer
3517 * Enable vlan header stripping for the VF
3519 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3521 struct i40e_vsi *vsi;
3524 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3529 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3530 i40e_vlan_stripping_enable(vsi);
3532 /* send the response to the VF */
3534 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3539 * i40e_vc_disable_vlan_stripping
3540 * @vf: pointer to the VF info
3541 * @msg: pointer to the msg buffer
3543 * Disable vlan header stripping for the VF
3545 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3547 struct i40e_vsi *vsi;
3550 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3555 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3556 i40e_vlan_stripping_disable(vsi);
3558 /* send the response to the VF */
3560 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3565 * i40e_validate_cloud_filter
3566 * @vf: pointer to VF structure
3567 * @tc_filter: pointer to filter requested
3569 * This function validates cloud filter programmed as TC filter for ADq
3571 static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3572 struct virtchnl_filter *tc_filter)
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;
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);
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);
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 possible
3601 * to be added to a VF in Non-trusted mode. Main goal is
3602 * to add filters to its own MAC and VLAN id.
3603 * 2. Advanced mode: is for allowing filters to be applied other than
3604 * its own MAC or VLAN. This mode requires the VF to be
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);
3612 dev_info(&pf->pdev->dev,
3613 "Destination MAC %pM doesn't belong to VF %d\n",
3614 data.dst_mac, vf->vf_id);
3619 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3621 if (f->vlan == ntohs(data.vlan_id)) {
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));
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",
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);
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);
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",
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",
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",
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",
3698 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3699 * @vf: pointer to the VF info
3700 * @seid: seid of the vsi it is searching for
3702 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3704 struct i40e_pf *pf = vf->pf;
3705 struct i40e_vsi *vsi = NULL;
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)
3717 * i40e_del_all_cloud_filters
3718 * @vf: pointer to the VF info
3720 * This function deletes all cloud filters
3722 static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
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;
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);
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);
3740 if (cfilter->dst_port)
3741 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3744 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
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));
3752 hlist_del(&cfilter->cloud_node);
3754 vf->num_cloud_filters--;
3759 * i40e_vc_del_cloud_filter
3760 * @vf: pointer to the VF info
3761 * @msg: pointer to the msg buffer
3763 * This function deletes a cloud filter programmed as TC filter for ADq
3765 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
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;
3777 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3782 if (!vf->adq_enabled) {
3783 dev_info(&pf->pdev->dev,
3784 "VF %d: ADq not enabled, can't apply cloud filter\n",
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",
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];
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];
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;
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));
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));
3831 /* TC filter can be configured based on different combinations
3832 * and in this case IP is not a part of filter config
3834 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
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;
3843 /* Deleting TC filter */
3845 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3847 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
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));
3856 hlist_for_each_entry_safe(cf, node,
3857 &vf->cloud_filter_list, cloud_node) {
3858 if (cf->seid != cfilter.seid)
3861 if (cfilter.dst_port != cf->dst_port)
3863 if (mask.dst_mac[0])
3864 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
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)))
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)))
3877 if (cfilter.vlan_id != cf->vlan_id)
3880 hlist_del(&cf->cloud_node);
3882 vf->num_cloud_filters--;
3886 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3891 * i40e_vc_add_cloud_filter
3892 * @vf: pointer to the VF info
3893 * @msg: pointer to the msg buffer
3895 * This function adds a cloud filter programmed as TC filter for ADq
3897 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
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;
3908 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3913 if (!vf->adq_enabled) {
3914 dev_info(&pf->pdev->dev,
3915 "VF %d: ADq is not enabled, can't apply cloud filter\n",
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",
3929 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
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];
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];
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;
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));
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));
3967 /* TC filter can be configured based on different combinations
3968 * and in this case IP is not a part of filter config
3970 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
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;
3979 /* Adding cloud filter programmed as TC filter */
3981 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3983 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
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));
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 */
3996 vf->num_cloud_filters++;
4000 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
4005 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
4006 * @vf: pointer to the VF info
4007 * @msg: pointer to the msg buffer
4009 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
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;
4019 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4024 /* ADq cannot be applied if spoof check is ON */
4026 dev_err(&pf->pdev->dev,
4027 "Spoof check is ON, turn it OFF to enable ADq\n");
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",
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);
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);
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;
4064 if (pf->queues_left < adq_request_qps) {
4065 dev_err(&pf->pdev->dev,
4066 "No queues left to allocate to VF %d\n",
4071 /* we need to allocate max VF queues to enable ADq so as to
4072 * make sure ADq enabled VF always gets back queues when it
4073 * goes through a reset.
4075 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
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");
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,
4099 vf->ch[i].max_tx_rate =
4100 tci->list[i].max_tx_rate;
4103 vf->ch[i].num_qps = tci->list[i].count;
4106 /* set this flag only after making sure all inputs are sane */
4107 vf->adq_enabled = true;
4109 /* reset the VF in order to allocate resources */
4110 i40e_vc_reset_vf(vf, true);
4114 /* send the response to the VF */
4116 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
4121 * i40e_vc_del_qch_msg
4122 * @vf: pointer to the VF info
4123 * @msg: pointer to the msg buffer
4125 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
4127 struct i40e_pf *pf = vf->pf;
4130 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4135 if (vf->adq_enabled) {
4136 i40e_del_all_cloud_filters(vf);
4138 vf->adq_enabled = false;
4140 dev_info(&pf->pdev->dev,
4141 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
4144 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
4149 /* reset the VF in order to allocate resources */
4150 i40e_vc_reset_vf(vf, true);
4155 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
4160 * i40e_vc_process_vf_msg
4161 * @pf: pointer to the PF structure
4162 * @vf_id: source VF id
4163 * @v_opcode: operation code
4164 * @v_retval: unused return value code
4165 * @msg: pointer to the msg buffer
4166 * @msglen: msg length
4168 * called from the common aeq/arq handler to
4169 * process request from VF
4171 int 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)
4174 struct i40e_hw *hw = &pf->hw;
4175 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4179 pf->vf_aq_requests++;
4180 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4182 vf = &(pf->vf[local_vf_id]);
4184 /* Check if VF is disabled. */
4185 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4188 /* perform basic checks on the msg */
4189 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
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);
4199 case VIRTCHNL_OP_VERSION:
4200 ret = i40e_vc_get_version_msg(vf, msg);
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);
4206 case VIRTCHNL_OP_RESET_VF:
4207 i40e_vc_reset_vf(vf, false);
4210 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4211 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4213 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4214 ret = i40e_vc_config_queues_msg(vf, msg);
4216 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4217 ret = i40e_vc_config_irq_map_msg(vf, msg);
4219 case VIRTCHNL_OP_ENABLE_QUEUES:
4220 ret = i40e_vc_enable_queues_msg(vf, msg);
4221 i40e_vc_notify_vf_link_state(vf);
4223 case VIRTCHNL_OP_DISABLE_QUEUES:
4224 ret = i40e_vc_disable_queues_msg(vf, msg);
4226 case VIRTCHNL_OP_ADD_ETH_ADDR:
4227 ret = i40e_vc_add_mac_addr_msg(vf, msg);
4229 case VIRTCHNL_OP_DEL_ETH_ADDR:
4230 ret = i40e_vc_del_mac_addr_msg(vf, msg);
4232 case VIRTCHNL_OP_ADD_VLAN:
4233 ret = i40e_vc_add_vlan_msg(vf, msg);
4235 case VIRTCHNL_OP_DEL_VLAN:
4236 ret = i40e_vc_remove_vlan_msg(vf, msg);
4238 case VIRTCHNL_OP_GET_STATS:
4239 ret = i40e_vc_get_stats_msg(vf, msg);
4241 case VIRTCHNL_OP_RDMA:
4242 ret = i40e_vc_rdma_msg(vf, msg, msglen);
4244 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:
4245 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true);
4247 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:
4248 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false);
4250 case VIRTCHNL_OP_CONFIG_RSS_KEY:
4251 ret = i40e_vc_config_rss_key(vf, msg);
4253 case VIRTCHNL_OP_CONFIG_RSS_LUT:
4254 ret = i40e_vc_config_rss_lut(vf, msg);
4256 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4257 ret = i40e_vc_get_rss_hena(vf, msg);
4259 case VIRTCHNL_OP_SET_RSS_HENA:
4260 ret = i40e_vc_set_rss_hena(vf, msg);
4262 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4263 ret = i40e_vc_enable_vlan_stripping(vf, msg);
4265 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4266 ret = i40e_vc_disable_vlan_stripping(vf, msg);
4268 case VIRTCHNL_OP_REQUEST_QUEUES:
4269 ret = i40e_vc_request_queues_msg(vf, msg);
4271 case VIRTCHNL_OP_ENABLE_CHANNELS:
4272 ret = i40e_vc_add_qch_msg(vf, msg);
4274 case VIRTCHNL_OP_DISABLE_CHANNELS:
4275 ret = i40e_vc_del_qch_msg(vf, msg);
4277 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4278 ret = i40e_vc_add_cloud_filter(vf, msg);
4280 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4281 ret = i40e_vc_del_cloud_filter(vf, msg);
4283 case VIRTCHNL_OP_UNKNOWN:
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,
4296 * i40e_vc_process_vflr_event
4297 * @pf: pointer to the PF structure
4299 * called from the vlfr irq handler to
4300 * free up VF resources and state variables
4302 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4304 struct i40e_hw *hw = &pf->hw;
4305 u32 reg, reg_idx, bit_idx;
4309 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4312 /* Re-enable the VFLR interrupt cause here, before looking for which
4313 * VF got reset. Otherwise, if another VF gets a reset while the
4314 * first one is being processed, that interrupt will be lost, and
4315 * that VF will be stuck in reset forever.
4317 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4318 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4319 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
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);
4339 * @pf: the physical function
4340 * @vf_id: VF identifier
4342 * Check that the VF is enabled and the VSI exists.
4344 * Returns 0 on success, negative on failure
4346 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4348 struct i40e_vsi *vsi;
4352 if (vf_id >= pf->num_alloc_vfs) {
4353 dev_err(&pf->pdev->dev,
4354 "Invalid VF Identifier %d\n", vf_id);
4358 vf = &pf->vf[vf_id];
4359 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
4367 * i40e_check_vf_init_timeout
4368 * @vf: the virtual function
4370 * Check that the VF's initialization was successfully done and if not
4371 * wait up to 300ms for its finish.
4373 * Returns true when VF is initialized, false on timeout
4375 static bool i40e_check_vf_init_timeout(struct i40e_vf *vf)
4379 /* When the VF is resetting wait until it is done.
4380 * It can take up to 200 milliseconds, but wait for
4381 * up to 300 milliseconds to be safe.
4383 for (i = 0; i < 15; i++) {
4384 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
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);
4399 * i40e_ndo_set_vf_mac
4400 * @netdev: network interface device structure
4401 * @vf_id: VF identifier
4404 * program VF mac address
4406 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
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;
4414 struct hlist_node *h;
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");
4422 /* validate the request */
4423 ret = i40e_validate_vf(pf, vf_id);
4427 vf = &pf->vf[vf_id];
4428 if (!i40e_check_vf_init_timeout(vf)) {
4432 vsi = pf->vsi[vf->lan_vsi_idx];
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);
4441 /* Lock once because below invoked function add/del_filter requires
4442 * mac_filter_hash_lock to be held
4444 spin_lock_bh(&vsi->mac_filter_hash_lock);
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);
4450 /* Delete all the filters for this VSI - we're going to kill it
4453 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4454 __i40e_del_filter(vsi, f);
4456 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4458 /* program mac filter */
4459 if (i40e_sync_vsi_filters(vsi)) {
4460 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4464 ether_addr_copy(vf->default_lan_addr.addr, mac);
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);
4470 vf->pf_set_mac = true;
4471 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4475 /* Force the VF interface down so it has to bring up with new MAC
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");
4482 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4487 * i40e_ndo_set_vf_port_vlan
4488 * @netdev: network interface device structure
4489 * @vf_id: VF identifier
4490 * @vlan_id: mac address
4491 * @qos: priority setting
4492 * @vlan_proto: vlan protocol
4494 * program VF vlan id and/or qos
4496 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4497 u16 vlan_id, u8 qos, __be16 vlan_proto)
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;
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");
4512 /* validate the request */
4513 ret = i40e_validate_vf(pf, vf_id);
4517 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4518 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4523 if (vlan_proto != htons(ETH_P_8021Q)) {
4524 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4525 ret = -EPROTONOSUPPORT;
4529 vf = &pf->vf[vf_id];
4530 if (!i40e_check_vf_init_timeout(vf)) {
4534 vsi = pf->vsi[vf->lan_vsi_idx];
4536 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4537 /* duplicate request, so just return success */
4540 i40e_vlan_stripping_enable(vsi);
4542 /* Locked once because multiple functions below iterate list */
4543 spin_lock_bh(&vsi->mac_filter_hash_lock);
4545 /* Check for condition where there was already a port VLAN ID
4546 * filter set and now it is being deleted by setting it to zero.
4547 * Additionally check for the condition where there was a port
4548 * 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 ones
4550 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4551 * MAC addresses deleted.
4553 if ((!(vlan_id || qos) ||
4554 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4556 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
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);
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) &
4572 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4574 /* disable promisc modes in case they were enabled */
4575 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4578 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4583 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4585 i40e_vsi_remove_pvid(vsi);
4586 spin_lock_bh(&vsi->mac_filter_hash_lock);
4589 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4590 vlan_id, qos, vf_id);
4592 /* add new VLAN filter for each MAC */
4593 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
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);
4602 /* remove the previously added non-VLAN MAC filters */
4603 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4606 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4608 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4611 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4614 /* Schedule the worker thread to take care of applying changes */
4615 i40e_service_event_schedule(vsi->back);
4618 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4622 /* The Port VLAN needs to be saved across resets the same as the
4623 * default LAN MAC address.
4625 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
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];
4631 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4633 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4640 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4645 * i40e_ndo_set_vf_bw
4646 * @netdev: network interface device structure
4647 * @vf_id: VF identifier
4648 * @min_tx_rate: Minimum Tx rate
4649 * @max_tx_rate: Maximum Tx rate
4651 * configure VF Tx rate
4653 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4656 struct i40e_netdev_priv *np = netdev_priv(netdev);
4657 struct i40e_pf *pf = np->vsi->back;
4658 struct i40e_vsi *vsi;
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");
4667 /* validate the request */
4668 ret = i40e_validate_vf(pf, vf_id);
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);
4679 vf = &pf->vf[vf_id];
4680 if (!i40e_check_vf_init_timeout(vf)) {
4684 vsi = pf->vsi[vf->lan_vsi_idx];
4686 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4690 vf->tx_rate = max_tx_rate;
4692 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4697 * i40e_ndo_get_vf_config
4698 * @netdev: network interface device structure
4699 * @vf_id: VF identifier
4700 * @ivi: VF configuration structure
4702 * return VF configuration
4704 int i40e_ndo_get_vf_config(struct net_device *netdev,
4705 int vf_id, struct ifla_vf_info *ivi)
4707 struct i40e_netdev_priv *np = netdev_priv(netdev);
4708 struct i40e_vsi *vsi = np->vsi;
4709 struct i40e_pf *pf = vsi->back;
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");
4718 /* validate the request */
4719 ret = i40e_validate_vf(pf, vf_id);
4723 vf = &pf->vf[vf_id];
4724 /* first vsi is always the LAN vsi */
4725 vsi = pf->vsi[vf->lan_vsi_idx];
4733 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
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;
4744 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4745 ivi->spoofchk = vf->spoofchk;
4746 ivi->trusted = vf->trusted;
4750 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4755 * i40e_ndo_set_vf_link_state
4756 * @netdev: network interface device structure
4757 * @vf_id: VF identifier
4758 * @link: required link state
4760 * Set the link state of a specified VF, regardless of physical link state
4762 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
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;
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");
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);
4788 vf = &pf->vf[vf_id];
4789 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4791 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4792 pfe.severity = PF_EVENT_SEVERITY_INFO;
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);
4802 case IFLA_VF_LINK_STATE_ENABLE:
4803 vf->link_forced = 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);
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);
4815 vsi = pf->vsi[vf->lan_vsi_idx];
4816 q_map = BIT(vsi->num_queue_pairs) - 1;
4818 vf->is_disabled_from_host = true;
4820 /* Try to stop both Tx&Rx rings even if one of the calls fails
4821 * to ensure we stop the rings even in case of errors.
4822 * If any of them returns with an error then the first
4823 * error that occurred will be returned.
4825 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);
4826 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);
4828 ret = tmp ? tmp : ret;
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);
4839 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4844 * i40e_ndo_set_vf_spoofchk
4845 * @netdev: network interface device structure
4846 * @vf_id: VF identifier
4847 * @enable: flag to enable or disable feature
4849 * Enable or disable VF spoof checking
4851 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
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;
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");
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);
4873 vf = &(pf->vf[vf_id]);
4874 if (!i40e_check_vf_init_timeout(vf)) {
4879 if (enable == vf->spoofchk)
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);
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);
4892 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4897 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4902 * i40e_ndo_set_vf_trust
4903 * @netdev: network interface device structure of the pf
4904 * @vf_id: VF identifier
4905 * @setting: trust setting
4907 * Enable or disable VF trust setting
4909 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4911 struct i40e_netdev_priv *np = netdev_priv(netdev);
4912 struct i40e_pf *pf = np->vsi->back;
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");
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);
4928 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4929 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4934 vf = &pf->vf[vf_id];
4936 if (setting == vf->trusted)
4939 vf->trusted = setting;
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;
4945 i40e_vc_reset_vf(vf, true);
4946 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4947 vf_id, setting ? "" : "un");
4949 if (vf->adq_enabled) {
4951 dev_info(&pf->pdev->dev,
4952 "VF %u no longer Trusted, deleting all cloud filters\n",
4954 i40e_del_all_cloud_filters(vf);
4959 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4964 * i40e_get_vf_stats - populate some stats for the VF
4965 * @netdev: the netdev of the PF
4966 * @vf_id: the host OS identifier (0-127)
4967 * @vf_stats: pointer to the OS memory to be initialized
4969 int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4970 struct ifla_vf_stats *vf_stats)
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;
4978 /* validate the request */
4979 if (i40e_validate_vf(pf, vf_id))
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);
4988 vsi = pf->vsi[vf->lan_vsi_idx];
4992 i40e_update_eth_stats(vsi);
4993 stats = &vsi->eth_stats;
4995 memset(vf_stats, 0, sizeof(*vf_stats));
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;