1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
6 /*********************notification routines***********************/
10 * @pf: pointer to the PF structure
11 * @v_opcode: operation code
12 * @v_retval: return value
13 * @msg: pointer to the msg buffer
16 * send a message to all VFs on a given PF
18 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
19 enum virtchnl_ops v_opcode,
20 i40e_status v_retval, u8 *msg,
23 struct i40e_hw *hw = &pf->hw;
24 struct i40e_vf *vf = pf->vf;
27 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
28 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
29 /* Not all vfs are enabled so skip the ones that are not */
30 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
31 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
34 /* Ignore return value on purpose - a given VF may fail, but
35 * we need to keep going and send to all of them
37 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
43 * i40e_vc_link_speed2mbps
44 * converts i40e_aq_link_speed to integer value of Mbps
45 * @link_speed: the speed to convert
47 * return the speed as direct value of Mbps.
50 i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
53 case I40E_LINK_SPEED_100MB:
55 case I40E_LINK_SPEED_1GB:
57 case I40E_LINK_SPEED_2_5GB:
59 case I40E_LINK_SPEED_5GB:
61 case I40E_LINK_SPEED_10GB:
63 case I40E_LINK_SPEED_20GB:
65 case I40E_LINK_SPEED_25GB:
67 case I40E_LINK_SPEED_40GB:
69 case I40E_LINK_SPEED_UNKNOWN:
76 * i40e_set_vf_link_state
77 * @vf: pointer to the VF structure
78 * @pfe: pointer to PF event structure
79 * @ls: pointer to link status structure
81 * set a link state on a single vf
83 static void i40e_set_vf_link_state(struct i40e_vf *vf,
84 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
86 u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
89 link_status = vf->link_up;
91 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
92 pfe->event_data.link_event_adv.link_speed = link_status ?
93 i40e_vc_link_speed2mbps(ls->link_speed) : 0;
94 pfe->event_data.link_event_adv.link_status = link_status;
96 pfe->event_data.link_event.link_speed = link_status ?
97 i40e_virtchnl_link_speed(ls->link_speed) : 0;
98 pfe->event_data.link_event.link_status = link_status;
103 * i40e_vc_notify_vf_link_state
104 * @vf: pointer to the VF structure
106 * send a link status message to a single VF
108 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
110 struct virtchnl_pf_event pfe;
111 struct i40e_pf *pf = vf->pf;
112 struct i40e_hw *hw = &pf->hw;
113 struct i40e_link_status *ls = &pf->hw.phy.link_info;
114 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
116 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
117 pfe.severity = PF_EVENT_SEVERITY_INFO;
119 i40e_set_vf_link_state(vf, &pfe, ls);
121 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
122 0, (u8 *)&pfe, sizeof(pfe), NULL);
126 * i40e_vc_notify_link_state
127 * @pf: pointer to the PF structure
129 * send a link status message to all VFs on a given PF
131 void i40e_vc_notify_link_state(struct i40e_pf *pf)
135 for (i = 0; i < pf->num_alloc_vfs; i++)
136 i40e_vc_notify_vf_link_state(&pf->vf[i]);
140 * i40e_vc_notify_reset
141 * @pf: pointer to the PF structure
143 * indicate a pending reset to all VFs on a given PF
145 void i40e_vc_notify_reset(struct i40e_pf *pf)
147 struct virtchnl_pf_event pfe;
149 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
150 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
151 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,
152 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
156 * i40e_vc_notify_vf_reset
157 * @vf: pointer to the VF structure
159 * indicate a pending reset to the given VF
161 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
163 struct virtchnl_pf_event pfe;
166 /* validate the request */
167 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
170 /* verify if the VF is in either init or active before proceeding */
171 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
172 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
175 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
177 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
178 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
179 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,
181 sizeof(struct virtchnl_pf_event), NULL);
183 /***********************misc routines*****************************/
187 * @vf: pointer to the VF info
188 * @notify_vf: notify vf about reset or not
191 static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
193 struct i40e_pf *pf = vf->pf;
197 i40e_vc_notify_vf_reset(vf);
199 /* We want to ensure that an actual reset occurs initiated after this
200 * function was called. However, we do not want to wait forever, so
201 * we'll give a reasonable time and print a message if we failed to
204 for (i = 0; i < 20; i++) {
205 /* If PF is in VFs releasing state reset VF is impossible,
208 if (test_bit(__I40E_VFS_RELEASING, pf->state))
210 if (i40e_reset_vf(vf, false))
212 usleep_range(10000, 20000);
216 dev_warn(&vf->pf->pdev->dev,
217 "Failed to initiate reset for VF %d after 200 milliseconds\n",
220 dev_dbg(&vf->pf->pdev->dev,
221 "Failed to initiate reset for VF %d after 200 milliseconds\n",
226 * i40e_vc_isvalid_vsi_id
227 * @vf: pointer to the VF info
228 * @vsi_id: VF relative VSI id
230 * check for the valid VSI id
232 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
234 struct i40e_pf *pf = vf->pf;
235 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
237 return (vsi && (vsi->vf_id == vf->vf_id));
241 * i40e_vc_isvalid_queue_id
242 * @vf: pointer to the VF info
244 * @qid: vsi relative queue id
246 * check for the valid queue id
248 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
251 struct i40e_pf *pf = vf->pf;
252 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
254 return (vsi && (qid < vsi->alloc_queue_pairs));
258 * i40e_vc_isvalid_vector_id
259 * @vf: pointer to the VF info
260 * @vector_id: VF relative vector id
262 * check for the valid vector id
264 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
266 struct i40e_pf *pf = vf->pf;
268 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
271 /***********************vf resource mgmt routines*****************/
274 * i40e_vc_get_pf_queue_id
275 * @vf: pointer to the VF info
276 * @vsi_id: id of VSI as provided by the FW
277 * @vsi_queue_id: vsi relative queue id
279 * return PF relative queue id
281 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
284 struct i40e_pf *pf = vf->pf;
285 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
286 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
291 if (le16_to_cpu(vsi->info.mapping_flags) &
292 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
294 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
296 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
303 * i40e_get_real_pf_qid
304 * @vf: pointer to the VF info
306 * @queue_id: queue number
308 * wrapper function to get pf_queue_id handling ADq code as well
310 static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
314 if (vf->adq_enabled) {
315 /* Although VF considers all the queues(can be 1 to 16) as its
316 * own but they may actually belong to different VSIs(up to 4).
317 * We need to find which queues belongs to which VSI.
319 for (i = 0; i < vf->num_tc; i++) {
320 if (queue_id < vf->ch[i].num_qps) {
321 vsi_id = vf->ch[i].vsi_id;
324 /* find right queue id which is relative to a
327 queue_id -= vf->ch[i].num_qps;
331 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);
335 * i40e_config_irq_link_list
336 * @vf: pointer to the VF info
337 * @vsi_id: id of VSI as given by the FW
338 * @vecmap: irq map info
340 * configure irq link list from the map
342 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
343 struct virtchnl_vector_map *vecmap)
345 unsigned long linklistmap = 0, tempmap;
346 struct i40e_pf *pf = vf->pf;
347 struct i40e_hw *hw = &pf->hw;
348 u16 vsi_queue_id, pf_queue_id;
349 enum i40e_queue_type qtype;
350 u16 next_q, vector_id, size;
354 vector_id = vecmap->vector_id;
357 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
359 reg_idx = I40E_VPINT_LNKLSTN(
360 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
363 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
364 /* Special case - No queues mapped on this vector */
365 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
368 tempmap = vecmap->rxq_map;
369 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
370 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
374 tempmap = vecmap->txq_map;
375 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
376 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
380 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
381 next_q = find_first_bit(&linklistmap, size);
382 if (unlikely(next_q == size))
385 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
386 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
387 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id);
388 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
390 wr32(hw, reg_idx, reg);
392 while (next_q < size) {
394 case I40E_QUEUE_TYPE_RX:
395 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
396 itr_idx = vecmap->rxitr_idx;
398 case I40E_QUEUE_TYPE_TX:
399 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
400 itr_idx = vecmap->txitr_idx;
406 next_q = find_next_bit(&linklistmap, size, next_q + 1);
408 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
409 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
410 pf_queue_id = i40e_get_real_pf_qid(vf,
414 pf_queue_id = I40E_QUEUE_END_OF_LIST;
418 /* format for the RQCTL & TQCTL regs is same */
420 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
421 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
422 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
423 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
424 wr32(hw, reg_idx, reg);
427 /* if the vf is running in polling mode and using interrupt zero,
428 * need to disable auto-mask on enabling zero interrupt for VFs.
430 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
432 reg = rd32(hw, I40E_GLINT_CTL);
433 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
434 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
435 wr32(hw, I40E_GLINT_CTL, reg);
444 * i40e_release_iwarp_qvlist
445 * @vf: pointer to the VF.
448 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
450 struct i40e_pf *pf = vf->pf;
451 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
455 if (!vf->qvlist_info)
458 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
459 for (i = 0; i < qvlist_info->num_vectors; i++) {
460 struct virtchnl_iwarp_qv_info *qv_info;
461 u32 next_q_index, next_q_type;
462 struct i40e_hw *hw = &pf->hw;
463 u32 v_idx, reg_idx, reg;
465 qv_info = &qvlist_info->qv_info[i];
468 v_idx = qv_info->v_idx;
469 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
470 /* Figure out the queue after CEQ and make that the
473 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
474 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
475 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
476 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
477 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
478 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
480 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
481 reg = (next_q_index &
482 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
484 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
486 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
489 kfree(vf->qvlist_info);
490 vf->qvlist_info = NULL;
494 * i40e_config_iwarp_qvlist
495 * @vf: pointer to the VF info
496 * @qvlist_info: queue and vector list
498 * Return 0 on success or < 0 on error
500 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
501 struct virtchnl_iwarp_qvlist_info *qvlist_info)
503 struct i40e_pf *pf = vf->pf;
504 struct i40e_hw *hw = &pf->hw;
505 struct virtchnl_iwarp_qv_info *qv_info;
506 u32 v_idx, i, reg_idx, reg;
507 u32 next_q_idx, next_q_type;
511 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
513 if (qvlist_info->num_vectors > msix_vf) {
514 dev_warn(&pf->pdev->dev,
515 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
516 qvlist_info->num_vectors,
522 kfree(vf->qvlist_info);
523 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info,
524 qvlist_info->num_vectors - 1),
526 if (!vf->qvlist_info) {
530 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
532 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
533 for (i = 0; i < qvlist_info->num_vectors; i++) {
534 qv_info = &qvlist_info->qv_info[i];
538 /* Validate vector id belongs to this vf */
539 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
544 v_idx = qv_info->v_idx;
546 vf->qvlist_info->qv_info[i] = *qv_info;
548 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
549 /* We might be sharing the interrupt, so get the first queue
550 * index and type, push it down the list by adding the new
551 * queue on top. Also link it with the new queue in CEQCTL.
553 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
554 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
555 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
556 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
557 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
559 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
560 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
561 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
562 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
563 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
564 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
565 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
566 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
568 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
569 reg = (qv_info->ceq_idx &
570 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
571 (I40E_QUEUE_TYPE_PE_CEQ <<
572 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
573 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
576 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
577 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
578 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
579 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
581 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
587 kfree(vf->qvlist_info);
588 vf->qvlist_info = NULL;
594 * i40e_config_vsi_tx_queue
595 * @vf: pointer to the VF info
596 * @vsi_id: id of VSI as provided by the FW
597 * @vsi_queue_id: vsi relative queue index
598 * @info: config. info
602 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
604 struct virtchnl_txq_info *info)
606 struct i40e_pf *pf = vf->pf;
607 struct i40e_hw *hw = &pf->hw;
608 struct i40e_hmc_obj_txq tx_ctx;
609 struct i40e_vsi *vsi;
614 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
618 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
619 vsi = i40e_find_vsi_from_id(pf, vsi_id);
625 /* clear the context structure first */
626 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
628 /* only set the required fields */
629 tx_ctx.base = info->dma_ring_addr / 128;
630 tx_ctx.qlen = info->ring_len;
631 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
632 tx_ctx.rdylist_act = 0;
633 tx_ctx.head_wb_ena = info->headwb_enabled;
634 tx_ctx.head_wb_addr = info->dma_headwb_addr;
636 /* clear the context in the HMC */
637 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
639 dev_err(&pf->pdev->dev,
640 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
646 /* set the context in the HMC */
647 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
649 dev_err(&pf->pdev->dev,
650 "Failed to set VF LAN Tx queue context %d error: %d\n",
656 /* associate this queue with the PCI VF function */
657 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
658 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
659 & I40E_QTX_CTL_PF_INDX_MASK);
660 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
661 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
662 & I40E_QTX_CTL_VFVM_INDX_MASK);
663 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
671 * i40e_config_vsi_rx_queue
672 * @vf: pointer to the VF info
673 * @vsi_id: id of VSI as provided by the FW
674 * @vsi_queue_id: vsi relative queue index
675 * @info: config. info
679 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
681 struct virtchnl_rxq_info *info)
683 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
684 struct i40e_pf *pf = vf->pf;
685 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
686 struct i40e_hw *hw = &pf->hw;
687 struct i40e_hmc_obj_rxq rx_ctx;
690 /* clear the context structure first */
691 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
693 /* only set the required fields */
694 rx_ctx.base = info->dma_ring_addr / 128;
695 rx_ctx.qlen = info->ring_len;
697 if (info->splithdr_enabled) {
698 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
700 I40E_RX_SPLIT_TCP_UDP |
702 /* header length validation */
703 if (info->hdr_size > ((2 * 1024) - 64)) {
707 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
709 /* set split mode 10b */
710 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
713 /* databuffer length validation */
714 if (info->databuffer_size > ((16 * 1024) - 128)) {
718 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
720 /* max pkt. length validation */
721 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
725 rx_ctx.rxmax = info->max_pkt_size;
727 /* if port VLAN is configured increase the max packet size */
729 rx_ctx.rxmax += VLAN_HLEN;
731 /* enable 32bytes desc always */
735 rx_ctx.lrxqthresh = 1;
740 /* clear the context in the HMC */
741 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
743 dev_err(&pf->pdev->dev,
744 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
750 /* set the context in the HMC */
751 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
753 dev_err(&pf->pdev->dev,
754 "Failed to set VF LAN Rx queue context %d error: %d\n",
766 * @vf: pointer to the VF info
767 * @idx: VSI index, applies only for ADq mode, zero otherwise
769 * alloc VF vsi context & resources
771 static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
773 struct i40e_mac_filter *f = NULL;
774 struct i40e_pf *pf = vf->pf;
775 struct i40e_vsi *vsi;
779 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
783 dev_err(&pf->pdev->dev,
784 "add vsi failed for VF %d, aq_err %d\n",
785 vf->vf_id, pf->hw.aq.asq_last_status);
787 goto error_alloc_vsi_res;
791 u64 hena = i40e_pf_get_default_rss_hena(pf);
792 u8 broadcast[ETH_ALEN];
794 vf->lan_vsi_idx = vsi->idx;
795 vf->lan_vsi_id = vsi->id;
796 /* If the port VLAN has been configured and then the
797 * VF driver was removed then the VSI port VLAN
798 * configuration was destroyed. Check if there is
799 * a port VLAN and restore the VSI configuration if
802 if (vf->port_vlan_id)
803 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
805 spin_lock_bh(&vsi->mac_filter_hash_lock);
806 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
807 f = i40e_add_mac_filter(vsi,
808 vf->default_lan_addr.addr);
810 dev_info(&pf->pdev->dev,
811 "Could not add MAC filter %pM for VF %d\n",
812 vf->default_lan_addr.addr, vf->vf_id);
814 eth_broadcast_addr(broadcast);
815 f = i40e_add_mac_filter(vsi, broadcast);
817 dev_info(&pf->pdev->dev,
818 "Could not allocate VF broadcast filter\n");
819 spin_unlock_bh(&vsi->mac_filter_hash_lock);
820 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
821 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
822 /* program mac filter only for VF VSI */
823 ret = i40e_sync_vsi_filters(vsi);
825 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
828 /* storing VSI index and id for ADq and don't apply the mac filter */
829 if (vf->adq_enabled) {
830 vf->ch[idx].vsi_idx = vsi->idx;
831 vf->ch[idx].vsi_id = vsi->id;
834 /* Set VF bandwidth if specified */
836 max_tx_rate = vf->tx_rate;
837 } else if (vf->ch[idx].max_tx_rate) {
838 max_tx_rate = vf->ch[idx].max_tx_rate;
842 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
843 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
844 max_tx_rate, 0, NULL);
846 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
855 * i40e_map_pf_queues_to_vsi
856 * @vf: pointer to the VF info
858 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
859 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
861 static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
863 struct i40e_pf *pf = vf->pf;
864 struct i40e_hw *hw = &pf->hw;
865 u32 reg, num_tc = 1; /* VF has at least one traffic class */
872 for (i = 0; i < num_tc; i++) {
873 if (vf->adq_enabled) {
874 qps = vf->ch[i].num_qps;
875 vsi_id = vf->ch[i].vsi_id;
877 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
878 vsi_id = vf->lan_vsi_id;
881 for (j = 0; j < 7; j++) {
886 u16 qid = i40e_vc_get_pf_queue_id(vf,
890 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
894 i40e_write_rx_ctl(hw,
895 I40E_VSILAN_QTABLE(j, vsi_id),
902 * i40e_map_pf_to_vf_queues
903 * @vf: pointer to the VF info
905 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
906 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
908 static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
910 struct i40e_pf *pf = vf->pf;
911 struct i40e_hw *hw = &pf->hw;
912 u32 reg, total_qps = 0;
913 u32 qps, num_tc = 1; /* VF has at least one traffic class */
920 for (i = 0; i < num_tc; i++) {
921 if (vf->adq_enabled) {
922 qps = vf->ch[i].num_qps;
923 vsi_id = vf->ch[i].vsi_id;
925 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
926 vsi_id = vf->lan_vsi_id;
929 for (j = 0; j < qps; j++) {
930 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
932 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
933 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
941 * i40e_enable_vf_mappings
942 * @vf: pointer to the VF info
946 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
948 struct i40e_pf *pf = vf->pf;
949 struct i40e_hw *hw = &pf->hw;
952 /* Tell the hardware we're using noncontiguous mapping. HW requires
953 * that VF queues be mapped using this method, even when they are
954 * contiguous in real life
956 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
957 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
959 /* enable VF vplan_qtable mappings */
960 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
961 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
963 i40e_map_pf_to_vf_queues(vf);
964 i40e_map_pf_queues_to_vsi(vf);
970 * i40e_disable_vf_mappings
971 * @vf: pointer to the VF info
973 * disable VF mappings
975 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
977 struct i40e_pf *pf = vf->pf;
978 struct i40e_hw *hw = &pf->hw;
981 /* disable qp mappings */
982 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
983 for (i = 0; i < I40E_MAX_VSI_QP; i++)
984 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
985 I40E_QUEUE_END_OF_LIST);
991 * @vf: pointer to the VF info
995 static void i40e_free_vf_res(struct i40e_vf *vf)
997 struct i40e_pf *pf = vf->pf;
998 struct i40e_hw *hw = &pf->hw;
1002 /* Start by disabling VF's configuration API to prevent the OS from
1003 * accessing the VF's VSI after it's freed / invalidated.
1005 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1007 /* It's possible the VF had requeuested more queues than the default so
1008 * do the accounting here when we're about to free them.
1010 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
1011 pf->queues_left += vf->num_queue_pairs -
1012 I40E_DEFAULT_QUEUES_PER_VF;
1015 /* free vsi & disconnect it from the parent uplink */
1016 if (vf->lan_vsi_idx) {
1017 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
1018 vf->lan_vsi_idx = 0;
1022 /* do the accounting and remove additional ADq VSI's */
1023 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
1024 for (j = 0; j < vf->num_tc; j++) {
1025 /* At this point VSI0 is already released so don't
1026 * release it again and only clear their values in
1027 * structure variables
1030 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
1031 vf->ch[j].vsi_idx = 0;
1032 vf->ch[j].vsi_id = 0;
1035 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
1037 /* disable interrupts so the VF starts in a known state */
1038 for (i = 0; i < msix_vf; i++) {
1039 /* format is same for both registers */
1041 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
1043 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
1046 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1050 /* clear the irq settings */
1051 for (i = 0; i < msix_vf; i++) {
1052 /* format is same for both registers */
1054 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
1056 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
1059 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
1060 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1061 wr32(hw, reg_idx, reg);
1064 /* reset some of the state variables keeping track of the resources */
1065 vf->num_queue_pairs = 0;
1066 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1067 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1072 * @vf: pointer to the VF info
1074 * allocate VF resources
1076 static int i40e_alloc_vf_res(struct i40e_vf *vf)
1078 struct i40e_pf *pf = vf->pf;
1079 int total_queue_pairs = 0;
1082 if (vf->num_req_queues &&
1083 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1084 pf->num_vf_qps = vf->num_req_queues;
1086 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1088 /* allocate hw vsi context & associated resources */
1089 ret = i40e_alloc_vsi_res(vf, 0);
1092 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1094 /* allocate additional VSIs based on tc information for ADq */
1095 if (vf->adq_enabled) {
1096 if (pf->queues_left >=
1097 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1098 /* TC 0 always belongs to VF VSI */
1099 for (idx = 1; idx < vf->num_tc; idx++) {
1100 ret = i40e_alloc_vsi_res(vf, idx);
1104 /* send correct number of queues */
1105 total_queue_pairs = I40E_MAX_VF_QUEUES;
1107 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1109 vf->adq_enabled = false;
1113 /* We account for each VF to get a default number of queue pairs. If
1114 * the VF has now requested more, we need to account for that to make
1115 * certain we never request more queues than we actually have left in
1118 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1120 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1123 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1125 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1127 /* store the total qps number for the runtime
1130 vf->num_queue_pairs = total_queue_pairs;
1132 /* VF is now completely initialized */
1133 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1137 i40e_free_vf_res(vf);
1142 #define VF_DEVICE_STATUS 0xAA
1143 #define VF_TRANS_PENDING_MASK 0x20
1145 * i40e_quiesce_vf_pci
1146 * @vf: pointer to the VF structure
1148 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1149 * if the transactions never clear.
1151 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1153 struct i40e_pf *pf = vf->pf;
1154 struct i40e_hw *hw = &pf->hw;
1158 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1160 wr32(hw, I40E_PF_PCI_CIAA,
1161 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1162 for (i = 0; i < 100; i++) {
1163 reg = rd32(hw, I40E_PF_PCI_CIAD);
1164 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1172 * __i40e_getnum_vf_vsi_vlan_filters
1173 * @vsi: pointer to the vsi
1175 * called to get the number of VLANs offloaded on this VF
1177 static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1179 struct i40e_mac_filter *f;
1180 u16 num_vlans = 0, bkt;
1182 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1183 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1191 * i40e_getnum_vf_vsi_vlan_filters
1192 * @vsi: pointer to the vsi
1194 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
1196 static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1200 spin_lock_bh(&vsi->mac_filter_hash_lock);
1201 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1202 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1208 * i40e_get_vlan_list_sync
1209 * @vsi: pointer to the VSI
1210 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1211 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1212 * This array is allocated here, but has to be freed in caller.
1214 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1216 static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1219 struct i40e_mac_filter *f;
1223 spin_lock_bh(&vsi->mac_filter_hash_lock);
1224 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1225 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1229 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1230 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1232 (*vlan_list)[i++] = f->vlan;
1235 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1239 * i40e_set_vsi_promisc
1240 * @vf: pointer to the VF struct
1242 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1244 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1246 * @vl: List of VLANs - apply filter for given VLANs
1247 * @num_vlans: Number of elements in @vl
1250 i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1251 bool unicast_enable, s16 *vl, u16 num_vlans)
1253 i40e_status aq_ret, aq_tmp = 0;
1254 struct i40e_pf *pf = vf->pf;
1255 struct i40e_hw *hw = &pf->hw;
1258 /* No VLAN to set promisc on, set on VSI */
1259 if (!num_vlans || !vl) {
1260 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1264 int aq_err = pf->hw.aq.asq_last_status;
1266 dev_err(&pf->pdev->dev,
1267 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1269 i40e_stat_str(&pf->hw, aq_ret),
1270 i40e_aq_str(&pf->hw, aq_err));
1275 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1280 int aq_err = pf->hw.aq.asq_last_status;
1282 dev_err(&pf->pdev->dev,
1283 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1285 i40e_stat_str(&pf->hw, aq_ret),
1286 i40e_aq_str(&pf->hw, aq_err));
1292 for (i = 0; i < num_vlans; i++) {
1293 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1297 int aq_err = pf->hw.aq.asq_last_status;
1299 dev_err(&pf->pdev->dev,
1300 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1302 i40e_stat_str(&pf->hw, aq_ret),
1303 i40e_aq_str(&pf->hw, aq_err));
1309 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1313 int aq_err = pf->hw.aq.asq_last_status;
1315 dev_err(&pf->pdev->dev,
1316 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1318 i40e_stat_str(&pf->hw, aq_ret),
1319 i40e_aq_str(&pf->hw, aq_err));
1333 * i40e_config_vf_promiscuous_mode
1334 * @vf: pointer to the VF info
1336 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1337 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1339 * Called from the VF to configure the promiscuous mode of
1340 * VF vsis and from the VF reset path to reset promiscuous mode.
1342 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1347 i40e_status aq_ret = I40E_SUCCESS;
1348 struct i40e_pf *pf = vf->pf;
1349 struct i40e_vsi *vsi;
1353 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1354 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1355 return I40E_ERR_PARAM;
1357 if (vf->port_vlan_id) {
1358 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1359 alluni, &vf->port_vlan_id, 1);
1361 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1362 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1365 return I40E_ERR_NO_MEMORY;
1367 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1373 /* no VLANs to set on, set on VSI */
1374 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1380 * i40e_sync_vfr_reset
1381 * @hw: pointer to hw struct
1382 * @vf_id: VF identifier
1384 * Before trigger hardware reset, we need to know if no other process has
1385 * reserved the hardware for any reset operations. This check is done by
1386 * examining the status of the RSTAT1 register used to signal the reset.
1388 static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
1393 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
1394 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
1395 I40E_VFINT_ICR0_ADMINQ_MASK;
1399 usleep_range(100, 200);
1406 * i40e_trigger_vf_reset
1407 * @vf: pointer to the VF structure
1408 * @flr: VFLR was issued or not
1410 * Trigger hardware to start a reset for a particular VF. Expects the caller
1411 * to wait the proper amount of time to allow hardware to reset the VF before
1412 * it cleans up and restores VF functionality.
1414 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1416 struct i40e_pf *pf = vf->pf;
1417 struct i40e_hw *hw = &pf->hw;
1418 u32 reg, reg_idx, bit_idx;
1423 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1425 /* Disable VF's configuration API during reset. The flag is re-enabled
1426 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1427 * It's normally disabled in i40e_free_vf_res(), but it's safer
1428 * to do it earlier to give some time to finish to any VF config
1429 * functions that may still be running at this point.
1431 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1433 /* In the case of a VFLR, the HW has already reset the VF and we
1434 * just need to clean up, so don't hit the VFRTRIG register.
1437 /* Sync VFR reset before trigger next one */
1438 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
1439 I40E_VFINT_ICR0_ADMINQ_MASK;
1440 if (vf_active && !radq)
1441 /* waiting for finish reset by virtual driver */
1442 if (i40e_sync_vfr_reset(hw, vf->vf_id))
1443 dev_info(&pf->pdev->dev,
1444 "Reset VF %d never finished\n",
1447 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting
1448 * in progress state in rstat1 register.
1450 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1451 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1452 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1455 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1456 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1457 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1458 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1461 if (i40e_quiesce_vf_pci(vf))
1462 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1467 * i40e_cleanup_reset_vf
1468 * @vf: pointer to the VF structure
1470 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1471 * have verified whether the reset is finished properly, and ensure the
1472 * minimum amount of wait time has passed.
1474 static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1476 struct i40e_pf *pf = vf->pf;
1477 struct i40e_hw *hw = &pf->hw;
1480 /* disable promisc modes in case they were enabled */
1481 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1483 /* free VF resources to begin resetting the VSI state */
1484 i40e_free_vf_res(vf);
1486 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1487 * By doing this we allow HW to access VF memory at any point. If we
1488 * did it any sooner, HW could access memory while it was being freed
1489 * in i40e_free_vf_res(), causing an IOMMU fault.
1491 * On the other hand, this needs to be done ASAP, because the VF driver
1492 * is waiting for this to happen and may report a timeout. It's
1493 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1496 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1497 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1498 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1500 /* reallocate VF resources to finish resetting the VSI state */
1501 if (!i40e_alloc_vf_res(vf)) {
1502 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1503 i40e_enable_vf_mappings(vf);
1504 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1505 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1506 /* Do not notify the client during VF init */
1507 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1509 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1513 /* Tell the VF driver the reset is done. This needs to be done only
1514 * after VF has been fully initialized, because the VF driver may
1515 * request resources immediately after setting this flag.
1517 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1522 * @vf: pointer to the VF structure
1523 * @flr: VFLR was issued or not
1525 * Returns true if the VF is in reset, resets successfully, or resets
1526 * are disabled and false otherwise.
1528 bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1530 struct i40e_pf *pf = vf->pf;
1531 struct i40e_hw *hw = &pf->hw;
1536 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))
1539 /* Bail out if VFs are disabled. */
1540 if (test_bit(__I40E_VF_DISABLE, pf->state))
1543 /* If VF is being reset already we don't need to continue. */
1544 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1547 i40e_trigger_vf_reset(vf, flr);
1549 /* poll VPGEN_VFRSTAT reg to make sure
1550 * that reset is complete
1552 for (i = 0; i < 10; i++) {
1553 /* VF reset requires driver to first reset the VF and then
1554 * poll the status register to make sure that the reset
1555 * completed successfully. Due to internal HW FIFO flushes,
1556 * we must wait 10ms before the register will be valid.
1558 usleep_range(10000, 20000);
1559 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1560 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1567 usleep_range(10000, 20000);
1570 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1572 usleep_range(10000, 20000);
1574 /* On initial reset, we don't have any queues to disable */
1575 if (vf->lan_vsi_idx != 0)
1576 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1578 i40e_cleanup_reset_vf(vf);
1581 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);
1587 * i40e_reset_all_vfs
1588 * @pf: pointer to the PF structure
1589 * @flr: VFLR was issued or not
1591 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1592 * VF, then do all the waiting in one chunk, and finally finish restoring each
1593 * VF after the wait. This is useful during PF routines which need to reset
1594 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1596 * Returns true if any VFs were reset, and false otherwise.
1598 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1600 struct i40e_hw *hw = &pf->hw;
1605 /* If we don't have any VFs, then there is nothing to reset */
1606 if (!pf->num_alloc_vfs)
1609 /* If VFs have been disabled, there is no need to reset */
1610 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1613 /* Begin reset on all VFs at once */
1614 for (v = 0; v < pf->num_alloc_vfs; v++) {
1616 /* If VF is being reset no need to trigger reset again */
1617 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1618 i40e_trigger_vf_reset(&pf->vf[v], flr);
1621 /* HW requires some time to make sure it can flush the FIFO for a VF
1622 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1623 * sequence to make sure that it has completed. We'll keep track of
1624 * the VFs using a simple iterator that increments once that VF has
1625 * finished resetting.
1627 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1628 usleep_range(10000, 20000);
1630 /* Check each VF in sequence, beginning with the VF to fail
1631 * the previous check.
1633 while (v < pf->num_alloc_vfs) {
1635 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
1636 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1637 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1641 /* If the current VF has finished resetting, move on
1642 * to the next VF in sequence.
1649 usleep_range(10000, 20000);
1651 /* Display a warning if at least one VF didn't manage to reset in
1652 * time, but continue on with the operation.
1654 if (v < pf->num_alloc_vfs)
1655 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1657 usleep_range(10000, 20000);
1659 /* Begin disabling all the rings associated with VFs, but do not wait
1662 for (v = 0; v < pf->num_alloc_vfs; v++) {
1663 /* On initial reset, we don't have any queues to disable */
1664 if (pf->vf[v].lan_vsi_idx == 0)
1667 /* If VF is reset in another thread just continue */
1668 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1671 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1674 /* Now that we've notified HW to disable all of the VF rings, wait
1675 * until they finish.
1677 for (v = 0; v < pf->num_alloc_vfs; v++) {
1678 /* On initial reset, we don't have any queues to disable */
1679 if (pf->vf[v].lan_vsi_idx == 0)
1682 /* If VF is reset in another thread just continue */
1683 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1686 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1689 /* Hw may need up to 50ms to finish disabling the RX queues. We
1690 * minimize the wait by delaying only once for all VFs.
1694 /* Finish the reset on each VF */
1695 for (v = 0; v < pf->num_alloc_vfs; v++) {
1696 /* If VF is reset in another thread just continue */
1697 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1700 i40e_cleanup_reset_vf(&pf->vf[v]);
1704 clear_bit(__I40E_VF_DISABLE, pf->state);
1711 * @pf: pointer to the PF structure
1715 void i40e_free_vfs(struct i40e_pf *pf)
1717 struct i40e_hw *hw = &pf->hw;
1718 u32 reg_idx, bit_idx;
1724 set_bit(__I40E_VFS_RELEASING, pf->state);
1725 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1726 usleep_range(1000, 2000);
1728 i40e_notify_client_of_vf_enable(pf, 0);
1730 /* Disable IOV before freeing resources. This lets any VF drivers
1731 * running in the host get themselves cleaned up before we yank
1732 * the carpet out from underneath their feet.
1734 if (!pci_vfs_assigned(pf->pdev))
1735 pci_disable_sriov(pf->pdev);
1737 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1739 /* Amortize wait time by stopping all VFs at the same time */
1740 for (i = 0; i < pf->num_alloc_vfs; i++) {
1741 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1744 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1747 for (i = 0; i < pf->num_alloc_vfs; i++) {
1748 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1751 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1754 /* free up VF resources */
1755 tmp = pf->num_alloc_vfs;
1756 pf->num_alloc_vfs = 0;
1757 for (i = 0; i < tmp; i++) {
1758 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1759 i40e_free_vf_res(&pf->vf[i]);
1760 /* disable qp mappings */
1761 i40e_disable_vf_mappings(&pf->vf[i]);
1767 /* This check is for when the driver is unloaded while VFs are
1768 * assigned. Setting the number of VFs to 0 through sysfs is caught
1769 * before this function ever gets called.
1771 if (!pci_vfs_assigned(pf->pdev)) {
1772 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1773 * work correctly when SR-IOV gets re-enabled.
1775 for (vf_id = 0; vf_id < tmp; vf_id++) {
1776 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1777 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1778 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1781 clear_bit(__I40E_VF_DISABLE, pf->state);
1782 clear_bit(__I40E_VFS_RELEASING, pf->state);
1785 #ifdef CONFIG_PCI_IOV
1788 * @pf: pointer to the PF structure
1789 * @num_alloc_vfs: number of VFs to allocate
1791 * allocate VF resources
1793 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1795 struct i40e_vf *vfs;
1798 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1799 i40e_irq_dynamic_disable_icr0(pf);
1801 /* Check to see if we're just allocating resources for extant VFs */
1802 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1803 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1805 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1806 pf->num_alloc_vfs = 0;
1810 /* allocate memory */
1811 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1818 /* apply default profile */
1819 for (i = 0; i < num_alloc_vfs; i++) {
1821 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1824 /* assign default capabilities */
1825 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1826 vfs[i].spoofchk = true;
1828 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1831 pf->num_alloc_vfs = num_alloc_vfs;
1833 /* VF resources get allocated during reset */
1834 i40e_reset_all_vfs(pf, false);
1836 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1842 /* Re-enable interrupt 0. */
1843 i40e_irq_dynamic_enable_icr0(pf);
1849 * i40e_pci_sriov_enable
1850 * @pdev: pointer to a pci_dev structure
1851 * @num_vfs: number of VFs to allocate
1853 * Enable or change the number of VFs
1855 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1857 #ifdef CONFIG_PCI_IOV
1858 struct i40e_pf *pf = pci_get_drvdata(pdev);
1859 int pre_existing_vfs = pci_num_vf(pdev);
1862 if (test_bit(__I40E_TESTING, pf->state)) {
1863 dev_warn(&pdev->dev,
1864 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1869 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1871 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1874 if (num_vfs > pf->num_req_vfs) {
1875 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1876 num_vfs, pf->num_req_vfs);
1881 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1882 err = i40e_alloc_vfs(pf, num_vfs);
1884 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1898 * i40e_pci_sriov_configure
1899 * @pdev: pointer to a pci_dev structure
1900 * @num_vfs: number of VFs to allocate
1902 * Enable or change the number of VFs. Called when the user updates the number
1905 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1907 struct i40e_pf *pf = pci_get_drvdata(pdev);
1910 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1911 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1916 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1917 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1918 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1920 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1921 goto sriov_configure_out;
1924 if (!pci_vfs_assigned(pf->pdev)) {
1926 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1927 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1929 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1931 goto sriov_configure_out;
1933 sriov_configure_out:
1934 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1938 /***********************virtual channel routines******************/
1941 * i40e_vc_send_msg_to_vf
1942 * @vf: pointer to the VF info
1943 * @v_opcode: virtual channel opcode
1944 * @v_retval: virtual channel return value
1945 * @msg: pointer to the msg buffer
1946 * @msglen: msg length
1950 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1951 u32 v_retval, u8 *msg, u16 msglen)
1958 /* validate the request */
1959 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1964 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1966 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1969 dev_info(&pf->pdev->dev,
1970 "Unable to send the message to VF %d aq_err %d\n",
1971 vf->vf_id, pf->hw.aq.asq_last_status);
1979 * i40e_vc_send_resp_to_vf
1980 * @vf: pointer to the VF info
1981 * @opcode: operation code
1982 * @retval: return value
1984 * send resp msg to VF
1986 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1987 enum virtchnl_ops opcode,
1990 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1994 * i40e_sync_vf_state
1995 * @vf: pointer to the VF info
1998 * Called from a VF message to synchronize the service with a potential
2001 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
2005 /* When handling some messages, it needs VF state to be set.
2006 * It is possible that this flag is cleared during VF reset,
2007 * so there is a need to wait until the end of the reset to
2008 * handle the request message correctly.
2010 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
2011 if (test_bit(state, &vf->vf_states))
2013 usleep_range(10000, 20000);
2016 return test_bit(state, &vf->vf_states);
2020 * i40e_vc_get_version_msg
2021 * @vf: pointer to the VF info
2022 * @msg: pointer to the msg buffer
2024 * called from the VF to request the API version used by the PF
2026 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2028 struct virtchnl_version_info info = {
2029 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2032 vf->vf_ver = *(struct virtchnl_version_info *)msg;
2033 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2034 if (VF_IS_V10(&vf->vf_ver))
2035 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2036 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
2037 I40E_SUCCESS, (u8 *)&info,
2038 sizeof(struct virtchnl_version_info));
2042 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
2043 * @vf: pointer to VF structure
2045 static void i40e_del_qch(struct i40e_vf *vf)
2047 struct i40e_pf *pf = vf->pf;
2050 /* first element in the array belongs to primary VF VSI and we shouldn't
2051 * delete it. We should however delete the rest of the VSIs created
2053 for (i = 1; i < vf->num_tc; i++) {
2054 if (vf->ch[i].vsi_idx) {
2055 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
2056 vf->ch[i].vsi_idx = 0;
2057 vf->ch[i].vsi_id = 0;
2063 * i40e_vc_get_max_frame_size
2064 * @vf: pointer to the VF
2066 * Max frame size is determined based on the current port's max frame size and
2067 * whether a port VLAN is configured on this VF. The VF is not aware whether
2068 * it's in a port VLAN so the PF needs to account for this in max frame size
2069 * checks and sending the max frame size to the VF.
2071 static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
2073 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
2075 if (vf->port_vlan_id)
2076 max_frame_size -= VLAN_HLEN;
2078 return max_frame_size;
2082 * i40e_vc_get_vf_resources_msg
2083 * @vf: pointer to the VF info
2084 * @msg: pointer to the msg buffer
2086 * called from the VF to request its resources
2088 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2090 struct virtchnl_vf_resource *vfres = NULL;
2091 struct i40e_pf *pf = vf->pf;
2092 i40e_status aq_ret = 0;
2093 struct i40e_vsi *vsi;
2098 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
2099 aq_ret = I40E_ERR_PARAM;
2103 len = struct_size(vfres, vsi_res, num_vsis);
2104 vfres = kzalloc(len, GFP_KERNEL);
2106 aq_ret = I40E_ERR_NO_MEMORY;
2110 if (VF_IS_V11(&vf->vf_ver))
2111 vf->driver_caps = *(u32 *)msg;
2113 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2114 VIRTCHNL_VF_OFFLOAD_RSS_REG |
2115 VIRTCHNL_VF_OFFLOAD_VLAN;
2117 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2118 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2119 vsi = pf->vsi[vf->lan_vsi_idx];
2120 if (!vsi->info.pvid)
2121 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2123 if (i40e_vf_client_capable(pf, vf->vf_id) &&
2124 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
2125 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
2126 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
2128 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
2131 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2132 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2134 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
2135 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2136 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2138 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2141 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
2142 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2143 vfres->vf_cap_flags |=
2144 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2147 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2148 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2150 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
2151 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2152 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2154 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2155 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
2156 dev_err(&pf->pdev->dev,
2157 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2159 aq_ret = I40E_ERR_PARAM;
2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2165 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
2166 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2167 vfres->vf_cap_flags |=
2168 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2171 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2172 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2174 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2175 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2177 vfres->num_vsis = num_vsis;
2178 vfres->num_queue_pairs = vf->num_queue_pairs;
2179 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2180 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2181 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2182 vfres->max_mtu = i40e_vc_get_max_frame_size(vf);
2184 if (vf->lan_vsi_idx) {
2185 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2186 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2187 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2188 /* VFs only use TC 0 */
2189 vfres->vsi_res[0].qset_handle
2190 = le16_to_cpu(vsi->info.qs_handle[0]);
2191 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {
2192 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2193 eth_zero_addr(vf->default_lan_addr.addr);
2195 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2196 vf->default_lan_addr.addr);
2198 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2201 /* send the response back to the VF */
2202 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2203 aq_ret, (u8 *)vfres, len);
2210 * i40e_vc_config_promiscuous_mode_msg
2211 * @vf: pointer to the VF info
2212 * @msg: pointer to the msg buffer
2214 * called from the VF to configure the promiscuous mode of
2217 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2219 struct virtchnl_promisc_info *info =
2220 (struct virtchnl_promisc_info *)msg;
2221 struct i40e_pf *pf = vf->pf;
2222 i40e_status aq_ret = 0;
2223 bool allmulti = false;
2224 bool alluni = false;
2226 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2227 aq_ret = I40E_ERR_PARAM;
2230 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2231 dev_err(&pf->pdev->dev,
2232 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2235 /* Lie to the VF on purpose, because this is an error we can
2236 * ignore. Unprivileged VF is not a virtual channel error.
2242 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2243 aq_ret = I40E_ERR_PARAM;
2247 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2248 aq_ret = I40E_ERR_PARAM;
2252 /* Multicast promiscuous handling*/
2253 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2256 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2258 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2264 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2266 dev_info(&pf->pdev->dev,
2267 "VF %d successfully set multicast promiscuous mode\n",
2269 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2271 dev_info(&pf->pdev->dev,
2272 "VF %d successfully unset multicast promiscuous mode\n",
2276 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2278 dev_info(&pf->pdev->dev,
2279 "VF %d successfully set unicast promiscuous mode\n",
2281 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2283 dev_info(&pf->pdev->dev,
2284 "VF %d successfully unset unicast promiscuous mode\n",
2288 /* send the response to the VF */
2289 return i40e_vc_send_resp_to_vf(vf,
2290 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2295 * i40e_vc_config_queues_msg
2296 * @vf: pointer to the VF info
2297 * @msg: pointer to the msg buffer
2299 * called from the VF to configure the rx/tx
2302 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2304 struct virtchnl_vsi_queue_config_info *qci =
2305 (struct virtchnl_vsi_queue_config_info *)msg;
2306 struct virtchnl_queue_pair_info *qpi;
2307 u16 vsi_id, vsi_queue_id = 0;
2308 struct i40e_pf *pf = vf->pf;
2309 i40e_status aq_ret = 0;
2310 int i, j = 0, idx = 0;
2311 struct i40e_vsi *vsi;
2312 u16 num_qps_all = 0;
2314 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2315 aq_ret = I40E_ERR_PARAM;
2319 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2320 aq_ret = I40E_ERR_PARAM;
2324 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2325 aq_ret = I40E_ERR_PARAM;
2329 if (vf->adq_enabled) {
2330 for (i = 0; i < vf->num_tc; i++)
2331 num_qps_all += vf->ch[i].num_qps;
2332 if (num_qps_all != qci->num_queue_pairs) {
2333 aq_ret = I40E_ERR_PARAM;
2338 vsi_id = qci->vsi_id;
2340 for (i = 0; i < qci->num_queue_pairs; i++) {
2341 qpi = &qci->qpair[i];
2343 if (!vf->adq_enabled) {
2344 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2345 qpi->txq.queue_id)) {
2346 aq_ret = I40E_ERR_PARAM;
2350 vsi_queue_id = qpi->txq.queue_id;
2352 if (qpi->txq.vsi_id != qci->vsi_id ||
2353 qpi->rxq.vsi_id != qci->vsi_id ||
2354 qpi->rxq.queue_id != vsi_queue_id) {
2355 aq_ret = I40E_ERR_PARAM;
2360 if (vf->adq_enabled) {
2361 if (idx >= ARRAY_SIZE(vf->ch)) {
2362 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2365 vsi_id = vf->ch[idx].vsi_id;
2368 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2370 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2372 aq_ret = I40E_ERR_PARAM;
2376 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2377 * VF does not know about these additional VSIs and all
2378 * it cares is about its own queues. PF configures these queues
2379 * to its appropriate VSIs based on TC mapping
2381 if (vf->adq_enabled) {
2382 if (idx >= ARRAY_SIZE(vf->ch)) {
2383 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2386 if (j == (vf->ch[idx].num_qps - 1)) {
2388 j = 0; /* resetting the queue count */
2396 /* set vsi num_queue_pairs in use to num configured by VF */
2397 if (!vf->adq_enabled) {
2398 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2399 qci->num_queue_pairs;
2401 for (i = 0; i < vf->num_tc; i++) {
2402 vsi = pf->vsi[vf->ch[i].vsi_idx];
2403 vsi->num_queue_pairs = vf->ch[i].num_qps;
2405 if (i40e_update_adq_vsi_queues(vsi, i)) {
2406 aq_ret = I40E_ERR_CONFIG;
2413 /* send the response to the VF */
2414 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2419 * i40e_validate_queue_map - check queue map is valid
2420 * @vf: the VF structure pointer
2422 * @queuemap: Tx or Rx queue map
2424 * check if Tx or Rx queue map is valid
2426 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2427 unsigned long queuemap)
2429 u16 vsi_queue_id, queue_id;
2431 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2432 if (vf->adq_enabled) {
2433 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2434 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2436 queue_id = vsi_queue_id;
2439 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2447 * i40e_vc_config_irq_map_msg
2448 * @vf: pointer to the VF info
2449 * @msg: pointer to the msg buffer
2451 * called from the VF to configure the irq to
2454 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2456 struct virtchnl_irq_map_info *irqmap_info =
2457 (struct virtchnl_irq_map_info *)msg;
2458 struct virtchnl_vector_map *map;
2460 i40e_status aq_ret = 0;
2463 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2464 aq_ret = I40E_ERR_PARAM;
2468 if (irqmap_info->num_vectors >
2469 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2470 aq_ret = I40E_ERR_PARAM;
2474 for (i = 0; i < irqmap_info->num_vectors; i++) {
2475 map = &irqmap_info->vecmap[i];
2476 /* validate msg params */
2477 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2478 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2479 aq_ret = I40E_ERR_PARAM;
2482 vsi_id = map->vsi_id;
2484 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2485 aq_ret = I40E_ERR_PARAM;
2489 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2490 aq_ret = I40E_ERR_PARAM;
2494 i40e_config_irq_link_list(vf, vsi_id, map);
2497 /* send the response to the VF */
2498 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2503 * i40e_ctrl_vf_tx_rings
2504 * @vsi: the SRIOV VSI being configured
2505 * @q_map: bit map of the queues to be enabled
2506 * @enable: start or stop the queue
2508 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2511 struct i40e_pf *pf = vsi->back;
2515 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2516 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2517 vsi->base_queue + q_id,
2518 false /*is xdp*/, enable);
2526 * i40e_ctrl_vf_rx_rings
2527 * @vsi: the SRIOV VSI being configured
2528 * @q_map: bit map of the queues to be enabled
2529 * @enable: start or stop the queue
2531 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2534 struct i40e_pf *pf = vsi->back;
2538 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2539 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2548 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2549 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2551 * Returns true if validation was successful, else false.
2553 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2555 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2556 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2557 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2564 * i40e_vc_enable_queues_msg
2565 * @vf: pointer to the VF info
2566 * @msg: pointer to the msg buffer
2568 * called from the VF to enable all or specific queue(s)
2570 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2572 struct virtchnl_queue_select *vqs =
2573 (struct virtchnl_queue_select *)msg;
2574 struct i40e_pf *pf = vf->pf;
2575 i40e_status aq_ret = 0;
2578 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2579 aq_ret = I40E_ERR_PARAM;
2583 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2584 aq_ret = I40E_ERR_PARAM;
2588 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2589 aq_ret = I40E_ERR_PARAM;
2593 /* Use the queue bit map sent by the VF */
2594 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2596 aq_ret = I40E_ERR_TIMEOUT;
2599 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2601 aq_ret = I40E_ERR_TIMEOUT;
2605 /* need to start the rings for additional ADq VSI's as well */
2606 if (vf->adq_enabled) {
2607 /* zero belongs to LAN VSI */
2608 for (i = 1; i < vf->num_tc; i++) {
2609 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2610 aq_ret = I40E_ERR_TIMEOUT;
2615 /* send the response to the VF */
2616 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2621 * i40e_vc_disable_queues_msg
2622 * @vf: pointer to the VF info
2623 * @msg: pointer to the msg buffer
2625 * called from the VF to disable all or specific
2628 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2630 struct virtchnl_queue_select *vqs =
2631 (struct virtchnl_queue_select *)msg;
2632 struct i40e_pf *pf = vf->pf;
2633 i40e_status aq_ret = 0;
2635 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2636 aq_ret = I40E_ERR_PARAM;
2640 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2641 aq_ret = I40E_ERR_PARAM;
2645 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2646 aq_ret = I40E_ERR_PARAM;
2650 /* Use the queue bit map sent by the VF */
2651 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2653 aq_ret = I40E_ERR_TIMEOUT;
2656 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2658 aq_ret = I40E_ERR_TIMEOUT;
2662 /* send the response to the VF */
2663 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2668 * i40e_check_enough_queue - find big enough queue number
2669 * @vf: pointer to the VF info
2670 * @needed: the number of items needed
2672 * Returns the base item index of the queue, or negative for error
2674 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2676 unsigned int i, cur_queues, more, pool_size;
2677 struct i40e_lump_tracking *pile;
2678 struct i40e_pf *pf = vf->pf;
2679 struct i40e_vsi *vsi;
2681 vsi = pf->vsi[vf->lan_vsi_idx];
2682 cur_queues = vsi->alloc_queue_pairs;
2684 /* if current allocated queues are enough for need */
2685 if (cur_queues >= needed)
2686 return vsi->base_queue;
2689 if (cur_queues > 0) {
2690 /* if the allocated queues are not zero
2691 * just check if there are enough queues for more
2692 * behind the allocated queues.
2694 more = needed - cur_queues;
2695 for (i = vsi->base_queue + cur_queues;
2696 i < pile->num_entries; i++) {
2697 if (pile->list[i] & I40E_PILE_VALID_BIT)
2701 /* there is enough */
2702 return vsi->base_queue;
2707 for (i = 0; i < pile->num_entries; i++) {
2708 if (pile->list[i] & I40E_PILE_VALID_BIT) {
2712 if (needed <= ++pool_size)
2713 /* there is enough */
2721 * i40e_vc_request_queues_msg
2722 * @vf: pointer to the VF info
2723 * @msg: pointer to the msg buffer
2725 * VFs get a default number of queues but can use this message to request a
2726 * different number. If the request is successful, PF will reset the VF and
2727 * return 0. If unsuccessful, PF will send message informing VF of number of
2728 * available queues and return result of sending VF a message.
2730 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2732 struct virtchnl_vf_res_request *vfres =
2733 (struct virtchnl_vf_res_request *)msg;
2734 u16 req_pairs = vfres->num_queue_pairs;
2735 u8 cur_pairs = vf->num_queue_pairs;
2736 struct i40e_pf *pf = vf->pf;
2738 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
2741 if (req_pairs > I40E_MAX_VF_QUEUES) {
2742 dev_err(&pf->pdev->dev,
2743 "VF %d tried to request more than %d queues.\n",
2745 I40E_MAX_VF_QUEUES);
2746 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2747 } else if (req_pairs - cur_pairs > pf->queues_left) {
2748 dev_warn(&pf->pdev->dev,
2749 "VF %d requested %d more queues, but only %d left.\n",
2751 req_pairs - cur_pairs,
2753 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2754 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
2755 dev_warn(&pf->pdev->dev,
2756 "VF %d requested %d more queues, but there is not enough for it.\n",
2758 req_pairs - cur_pairs);
2759 vfres->num_queue_pairs = cur_pairs;
2761 /* successful request */
2762 vf->num_req_queues = req_pairs;
2763 i40e_vc_reset_vf(vf, true);
2767 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2768 (u8 *)vfres, sizeof(*vfres));
2772 * i40e_vc_get_stats_msg
2773 * @vf: pointer to the VF info
2774 * @msg: pointer to the msg buffer
2776 * called from the VF to get vsi stats
2778 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2780 struct virtchnl_queue_select *vqs =
2781 (struct virtchnl_queue_select *)msg;
2782 struct i40e_pf *pf = vf->pf;
2783 struct i40e_eth_stats stats;
2784 i40e_status aq_ret = 0;
2785 struct i40e_vsi *vsi;
2787 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2789 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2790 aq_ret = I40E_ERR_PARAM;
2794 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2795 aq_ret = I40E_ERR_PARAM;
2799 vsi = pf->vsi[vf->lan_vsi_idx];
2801 aq_ret = I40E_ERR_PARAM;
2804 i40e_update_eth_stats(vsi);
2805 stats = vsi->eth_stats;
2808 /* send the response back to the VF */
2809 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2810 (u8 *)&stats, sizeof(stats));
2813 #define I40E_MAX_MACVLAN_PER_HW 3072
2814 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2816 /* If the VF is not trusted restrict the number of MAC/VLAN it can program
2817 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2819 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2820 #define I40E_VC_MAX_VLAN_PER_VF 16
2822 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2823 ({ typeof(vf_num) vf_num_ = (vf_num); \
2824 typeof(num_ports) num_ports_ = (num_ports); \
2825 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2826 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2827 I40E_VC_MAX_MAC_ADDR_PER_VF; })
2829 * i40e_check_vf_permission
2830 * @vf: pointer to the VF info
2831 * @al: MAC address list from virtchnl
2833 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2834 * if any address in the list is not valid. Checks the following conditions:
2836 * 1) broadcast and zero addresses are never valid
2837 * 2) unicast addresses are not allowed if the VMM has administratively set
2838 * the VF MAC address, unless the VF is marked as privileged.
2839 * 3) There is enough space to add all the addresses.
2841 * Note that to guarantee consistency, it is expected this function be called
2842 * while holding the mac_filter_hash_lock, as otherwise the current number of
2843 * addresses might not be accurate.
2845 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2846 struct virtchnl_ether_addr_list *al)
2848 struct i40e_pf *pf = vf->pf;
2849 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2850 struct i40e_hw *hw = &pf->hw;
2851 int mac2add_cnt = 0;
2854 for (i = 0; i < al->num_elements; i++) {
2855 struct i40e_mac_filter *f;
2856 u8 *addr = al->list[i].addr;
2858 if (is_broadcast_ether_addr(addr) ||
2859 is_zero_ether_addr(addr)) {
2860 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2862 return I40E_ERR_INVALID_MAC_ADDR;
2865 /* If the host VMM administrator has set the VF MAC address
2866 * administratively via the ndo_set_vf_mac command then deny
2867 * permission to the VF to add or delete unicast MAC addresses.
2868 * Unless the VF is privileged and then it can do whatever.
2869 * The VF may request to set the MAC address filter already
2870 * assigned to it so do not return an error in that case.
2872 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2873 !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
2874 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2875 dev_err(&pf->pdev->dev,
2876 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2880 /*count filters that really will be added*/
2881 f = i40e_find_mac(vsi, addr);
2886 /* If this VF is not privileged, then we can't add more than a limited
2887 * number of addresses. Check to make sure that the additions do not
2888 * push us over the limit.
2890 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2891 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2892 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2893 dev_err(&pf->pdev->dev,
2894 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2897 /* If this VF is trusted, it can use more resources than untrusted.
2898 * However to ensure that every trusted VF has appropriate number of
2899 * resources, divide whole pool of resources per port and then across
2903 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2904 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2906 dev_err(&pf->pdev->dev,
2907 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2915 * i40e_vc_add_mac_addr_msg
2916 * @vf: pointer to the VF info
2917 * @msg: pointer to the msg buffer
2919 * add guest mac address filter
2921 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2923 struct virtchnl_ether_addr_list *al =
2924 (struct virtchnl_ether_addr_list *)msg;
2925 struct i40e_pf *pf = vf->pf;
2926 struct i40e_vsi *vsi = NULL;
2927 i40e_status ret = 0;
2930 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
2931 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2932 ret = I40E_ERR_PARAM;
2936 vsi = pf->vsi[vf->lan_vsi_idx];
2938 /* Lock once, because all function inside for loop accesses VSI's
2939 * MAC filter list which needs to be protected using same lock.
2941 spin_lock_bh(&vsi->mac_filter_hash_lock);
2943 ret = i40e_check_vf_permission(vf, al);
2945 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2949 /* add new addresses to the list */
2950 for (i = 0; i < al->num_elements; i++) {
2951 struct i40e_mac_filter *f;
2953 f = i40e_find_mac(vsi, al->list[i].addr);
2955 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2958 dev_err(&pf->pdev->dev,
2959 "Unable to add MAC filter %pM for VF %d\n",
2960 al->list[i].addr, vf->vf_id);
2961 ret = I40E_ERR_PARAM;
2962 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2965 if (is_valid_ether_addr(al->list[i].addr) &&
2966 is_zero_ether_addr(vf->default_lan_addr.addr))
2967 ether_addr_copy(vf->default_lan_addr.addr,
2971 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2973 /* program the updated filter list */
2974 ret = i40e_sync_vsi_filters(vsi);
2976 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2980 /* send the response to the VF */
2981 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2986 * i40e_vc_del_mac_addr_msg
2987 * @vf: pointer to the VF info
2988 * @msg: pointer to the msg buffer
2990 * remove guest mac address filter
2992 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2994 struct virtchnl_ether_addr_list *al =
2995 (struct virtchnl_ether_addr_list *)msg;
2996 bool was_unimac_deleted = false;
2997 struct i40e_pf *pf = vf->pf;
2998 struct i40e_vsi *vsi = NULL;
2999 i40e_status ret = 0;
3002 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3003 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3004 ret = I40E_ERR_PARAM;
3008 for (i = 0; i < al->num_elements; i++) {
3009 if (is_broadcast_ether_addr(al->list[i].addr) ||
3010 is_zero_ether_addr(al->list[i].addr)) {
3011 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
3012 al->list[i].addr, vf->vf_id);
3013 ret = I40E_ERR_INVALID_MAC_ADDR;
3016 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr))
3017 was_unimac_deleted = true;
3019 vsi = pf->vsi[vf->lan_vsi_idx];
3021 spin_lock_bh(&vsi->mac_filter_hash_lock);
3022 /* delete addresses from the list */
3023 for (i = 0; i < al->num_elements; i++)
3024 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
3025 ret = I40E_ERR_INVALID_MAC_ADDR;
3026 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3030 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3032 /* program the updated filter list */
3033 ret = i40e_sync_vsi_filters(vsi);
3035 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3038 if (vf->trusted && was_unimac_deleted) {
3039 struct i40e_mac_filter *f;
3040 struct hlist_node *h;
3044 /* set last unicast mac address as default */
3045 spin_lock_bh(&vsi->mac_filter_hash_lock);
3046 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3047 if (is_valid_ether_addr(f->macaddr))
3048 macaddr = f->macaddr;
3051 ether_addr_copy(vf->default_lan_addr.addr, macaddr);
3052 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3055 /* send the response to the VF */
3056 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
3060 * i40e_vc_add_vlan_msg
3061 * @vf: pointer to the VF info
3062 * @msg: pointer to the msg buffer
3064 * program guest vlan id
3066 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3068 struct virtchnl_vlan_filter_list *vfl =
3069 (struct virtchnl_vlan_filter_list *)msg;
3070 struct i40e_pf *pf = vf->pf;
3071 struct i40e_vsi *vsi = NULL;
3072 i40e_status aq_ret = 0;
3075 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3076 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3077 dev_err(&pf->pdev->dev,
3078 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3081 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3082 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3083 aq_ret = I40E_ERR_PARAM;
3087 for (i = 0; i < vfl->num_elements; i++) {
3088 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3089 aq_ret = I40E_ERR_PARAM;
3090 dev_err(&pf->pdev->dev,
3091 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3095 vsi = pf->vsi[vf->lan_vsi_idx];
3096 if (vsi->info.pvid) {
3097 aq_ret = I40E_ERR_PARAM;
3101 i40e_vlan_stripping_enable(vsi);
3102 for (i = 0; i < vfl->num_elements; i++) {
3103 /* add new VLAN filter */
3104 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
3108 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3109 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3113 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3114 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3120 dev_err(&pf->pdev->dev,
3121 "Unable to add VLAN filter %d for VF %d, error %d\n",
3122 vfl->vlan_id[i], vf->vf_id, ret);
3126 /* send the response to the VF */
3127 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
3131 * i40e_vc_remove_vlan_msg
3132 * @vf: pointer to the VF info
3133 * @msg: pointer to the msg buffer
3135 * remove programmed guest vlan id
3137 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3139 struct virtchnl_vlan_filter_list *vfl =
3140 (struct virtchnl_vlan_filter_list *)msg;
3141 struct i40e_pf *pf = vf->pf;
3142 struct i40e_vsi *vsi = NULL;
3143 i40e_status aq_ret = 0;
3146 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3147 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3148 aq_ret = I40E_ERR_PARAM;
3152 for (i = 0; i < vfl->num_elements; i++) {
3153 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3154 aq_ret = I40E_ERR_PARAM;
3159 vsi = pf->vsi[vf->lan_vsi_idx];
3160 if (vsi->info.pvid) {
3161 if (vfl->num_elements > 1 || vfl->vlan_id[0])
3162 aq_ret = I40E_ERR_PARAM;
3166 for (i = 0; i < vfl->num_elements; i++) {
3167 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
3170 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3171 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3175 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3176 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3183 /* send the response to the VF */
3184 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
3189 * @vf: pointer to the VF info
3190 * @msg: pointer to the msg buffer
3191 * @msglen: msg length
3193 * called from the VF for the iwarp msgs
3195 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3197 struct i40e_pf *pf = vf->pf;
3198 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3199 i40e_status aq_ret = 0;
3201 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3202 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
3203 aq_ret = I40E_ERR_PARAM;
3207 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
3211 /* send the response to the VF */
3212 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
3217 * i40e_vc_iwarp_qvmap_msg
3218 * @vf: pointer to the VF info
3219 * @msg: pointer to the msg buffer
3220 * @config: config qvmap or release it
3222 * called from the VF for the iwarp msgs
3224 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3226 struct virtchnl_iwarp_qvlist_info *qvlist_info =
3227 (struct virtchnl_iwarp_qvlist_info *)msg;
3228 i40e_status aq_ret = 0;
3230 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3231 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
3232 aq_ret = I40E_ERR_PARAM;
3237 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
3238 aq_ret = I40E_ERR_PARAM;
3240 i40e_release_iwarp_qvlist(vf);
3244 /* send the response to the VF */
3245 return i40e_vc_send_resp_to_vf(vf,
3246 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
3247 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
3252 * i40e_vc_config_rss_key
3253 * @vf: pointer to the VF info
3254 * @msg: pointer to the msg buffer
3256 * Configure the VF's RSS key
3258 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
3260 struct virtchnl_rss_key *vrk =
3261 (struct virtchnl_rss_key *)msg;
3262 struct i40e_pf *pf = vf->pf;
3263 struct i40e_vsi *vsi = NULL;
3264 i40e_status aq_ret = 0;
3266 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3267 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
3268 vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
3269 aq_ret = I40E_ERR_PARAM;
3273 vsi = pf->vsi[vf->lan_vsi_idx];
3274 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3276 /* send the response to the VF */
3277 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3282 * i40e_vc_config_rss_lut
3283 * @vf: pointer to the VF info
3284 * @msg: pointer to the msg buffer
3286 * Configure the VF's RSS LUT
3288 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3290 struct virtchnl_rss_lut *vrl =
3291 (struct virtchnl_rss_lut *)msg;
3292 struct i40e_pf *pf = vf->pf;
3293 struct i40e_vsi *vsi = NULL;
3294 i40e_status aq_ret = 0;
3297 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3298 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3299 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
3300 aq_ret = I40E_ERR_PARAM;
3304 for (i = 0; i < vrl->lut_entries; i++)
3305 if (vrl->lut[i] >= vf->num_queue_pairs) {
3306 aq_ret = I40E_ERR_PARAM;
3310 vsi = pf->vsi[vf->lan_vsi_idx];
3311 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3312 /* send the response to the VF */
3314 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3319 * i40e_vc_get_rss_hena
3320 * @vf: pointer to the VF info
3321 * @msg: pointer to the msg buffer
3323 * Return the RSS HENA bits allowed by the hardware
3325 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3327 struct virtchnl_rss_hena *vrh = NULL;
3328 struct i40e_pf *pf = vf->pf;
3329 i40e_status aq_ret = 0;
3332 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3333 aq_ret = I40E_ERR_PARAM;
3336 len = sizeof(struct virtchnl_rss_hena);
3338 vrh = kzalloc(len, GFP_KERNEL);
3340 aq_ret = I40E_ERR_NO_MEMORY;
3344 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3346 /* send the response back to the VF */
3347 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3348 aq_ret, (u8 *)vrh, len);
3354 * i40e_vc_set_rss_hena
3355 * @vf: pointer to the VF info
3356 * @msg: pointer to the msg buffer
3358 * Set the RSS HENA bits for the VF
3360 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3362 struct virtchnl_rss_hena *vrh =
3363 (struct virtchnl_rss_hena *)msg;
3364 struct i40e_pf *pf = vf->pf;
3365 struct i40e_hw *hw = &pf->hw;
3366 i40e_status aq_ret = 0;
3368 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3369 aq_ret = I40E_ERR_PARAM;
3372 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3373 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3374 (u32)(vrh->hena >> 32));
3376 /* send the response to the VF */
3378 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3382 * i40e_vc_enable_vlan_stripping
3383 * @vf: pointer to the VF info
3384 * @msg: pointer to the msg buffer
3386 * Enable vlan header stripping for the VF
3388 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3390 i40e_status aq_ret = 0;
3391 struct i40e_vsi *vsi;
3393 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3394 aq_ret = I40E_ERR_PARAM;
3398 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3399 i40e_vlan_stripping_enable(vsi);
3401 /* send the response to the VF */
3403 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3408 * i40e_vc_disable_vlan_stripping
3409 * @vf: pointer to the VF info
3410 * @msg: pointer to the msg buffer
3412 * Disable vlan header stripping for the VF
3414 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3416 i40e_status aq_ret = 0;
3417 struct i40e_vsi *vsi;
3419 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3420 aq_ret = I40E_ERR_PARAM;
3424 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3425 i40e_vlan_stripping_disable(vsi);
3427 /* send the response to the VF */
3429 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3434 * i40e_validate_cloud_filter
3435 * @vf: pointer to VF structure
3436 * @tc_filter: pointer to filter requested
3438 * This function validates cloud filter programmed as TC filter for ADq
3440 static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3441 struct virtchnl_filter *tc_filter)
3443 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3444 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3445 struct i40e_pf *pf = vf->pf;
3446 struct i40e_vsi *vsi = NULL;
3447 struct i40e_mac_filter *f;
3448 struct hlist_node *h;
3452 if (!tc_filter->action) {
3453 dev_info(&pf->pdev->dev,
3454 "VF %d: Currently ADq doesn't support Drop Action\n",
3459 /* action_meta is TC number here to which the filter is applied */
3460 if (!tc_filter->action_meta ||
3461 tc_filter->action_meta > I40E_MAX_VF_VSI) {
3462 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3463 vf->vf_id, tc_filter->action_meta);
3467 /* Check filter if it's programmed for advanced mode or basic mode.
3468 * There are two ADq modes (for VF only),
3469 * 1. Basic mode: intended to allow as many filter options as possible
3470 * to be added to a VF in Non-trusted mode. Main goal is
3471 * to add filters to its own MAC and VLAN id.
3472 * 2. Advanced mode: is for allowing filters to be applied other than
3473 * its own MAC or VLAN. This mode requires the VF to be
3476 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3477 vsi = pf->vsi[vf->lan_vsi_idx];
3478 f = i40e_find_mac(vsi, data.dst_mac);
3481 dev_info(&pf->pdev->dev,
3482 "Destination MAC %pM doesn't belong to VF %d\n",
3483 data.dst_mac, vf->vf_id);
3488 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3490 if (f->vlan == ntohs(data.vlan_id)) {
3496 dev_info(&pf->pdev->dev,
3497 "VF %d doesn't have any VLAN id %u\n",
3498 vf->vf_id, ntohs(data.vlan_id));
3503 /* Check if VF is trusted */
3504 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3505 dev_err(&pf->pdev->dev,
3506 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3508 return I40E_ERR_CONFIG;
3512 if (mask.dst_mac[0] & data.dst_mac[0]) {
3513 if (is_broadcast_ether_addr(data.dst_mac) ||
3514 is_zero_ether_addr(data.dst_mac)) {
3515 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3516 vf->vf_id, data.dst_mac);
3521 if (mask.src_mac[0] & data.src_mac[0]) {
3522 if (is_broadcast_ether_addr(data.src_mac) ||
3523 is_zero_ether_addr(data.src_mac)) {
3524 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3525 vf->vf_id, data.src_mac);
3530 if (mask.dst_port & data.dst_port) {
3531 if (!data.dst_port) {
3532 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3538 if (mask.src_port & data.src_port) {
3539 if (!data.src_port) {
3540 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3546 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3547 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3548 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3553 if (mask.vlan_id & data.vlan_id) {
3554 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3555 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3561 return I40E_SUCCESS;
3563 return I40E_ERR_CONFIG;
3567 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3568 * @vf: pointer to the VF info
3569 * @seid: seid of the vsi it is searching for
3571 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3573 struct i40e_pf *pf = vf->pf;
3574 struct i40e_vsi *vsi = NULL;
3577 for (i = 0; i < vf->num_tc ; i++) {
3578 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3579 if (vsi && vsi->seid == seid)
3586 * i40e_del_all_cloud_filters
3587 * @vf: pointer to the VF info
3589 * This function deletes all cloud filters
3591 static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3593 struct i40e_cloud_filter *cfilter = NULL;
3594 struct i40e_pf *pf = vf->pf;
3595 struct i40e_vsi *vsi = NULL;
3596 struct hlist_node *node;
3599 hlist_for_each_entry_safe(cfilter, node,
3600 &vf->cloud_filter_list, cloud_node) {
3601 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3604 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3605 vf->vf_id, cfilter->seid);
3609 if (cfilter->dst_port)
3610 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3613 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3615 dev_err(&pf->pdev->dev,
3616 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3617 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3618 i40e_aq_str(&pf->hw,
3619 pf->hw.aq.asq_last_status));
3621 hlist_del(&cfilter->cloud_node);
3623 vf->num_cloud_filters--;
3628 * i40e_vc_del_cloud_filter
3629 * @vf: pointer to the VF info
3630 * @msg: pointer to the msg buffer
3632 * This function deletes a cloud filter programmed as TC filter for ADq
3634 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3636 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3637 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3638 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3639 struct i40e_cloud_filter cfilter, *cf = NULL;
3640 struct i40e_pf *pf = vf->pf;
3641 struct i40e_vsi *vsi = NULL;
3642 struct hlist_node *node;
3643 i40e_status aq_ret = 0;
3646 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3647 aq_ret = I40E_ERR_PARAM;
3651 if (!vf->adq_enabled) {
3652 dev_info(&pf->pdev->dev,
3653 "VF %d: ADq not enabled, can't apply cloud filter\n",
3655 aq_ret = I40E_ERR_PARAM;
3659 if (i40e_validate_cloud_filter(vf, vcf)) {
3660 dev_info(&pf->pdev->dev,
3661 "VF %d: Invalid input, can't apply cloud filter\n",
3663 aq_ret = I40E_ERR_PARAM;
3667 memset(&cfilter, 0, sizeof(cfilter));
3668 /* parse destination mac address */
3669 for (i = 0; i < ETH_ALEN; i++)
3670 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3672 /* parse source mac address */
3673 for (i = 0; i < ETH_ALEN; i++)
3674 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3676 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3677 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3678 cfilter.src_port = mask.src_port & tcf.src_port;
3680 switch (vcf->flow_type) {
3681 case VIRTCHNL_TCP_V4_FLOW:
3682 cfilter.n_proto = ETH_P_IP;
3683 if (mask.dst_ip[0] & tcf.dst_ip[0])
3684 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3685 ARRAY_SIZE(tcf.dst_ip));
3686 else if (mask.src_ip[0] & tcf.dst_ip[0])
3687 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3688 ARRAY_SIZE(tcf.dst_ip));
3690 case VIRTCHNL_TCP_V6_FLOW:
3691 cfilter.n_proto = ETH_P_IPV6;
3692 if (mask.dst_ip[3] & tcf.dst_ip[3])
3693 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3694 sizeof(cfilter.ip.v6.dst_ip6));
3695 if (mask.src_ip[3] & tcf.src_ip[3])
3696 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3697 sizeof(cfilter.ip.v6.src_ip6));
3700 /* TC filter can be configured based on different combinations
3701 * and in this case IP is not a part of filter config
3703 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3707 /* get the vsi to which the tc belongs to */
3708 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3709 cfilter.seid = vsi->seid;
3710 cfilter.flags = vcf->field_flags;
3712 /* Deleting TC filter */
3714 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3716 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3718 dev_err(&pf->pdev->dev,
3719 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3720 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3721 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3725 hlist_for_each_entry_safe(cf, node,
3726 &vf->cloud_filter_list, cloud_node) {
3727 if (cf->seid != cfilter.seid)
3730 if (cfilter.dst_port != cf->dst_port)
3732 if (mask.dst_mac[0])
3733 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3735 /* for ipv4 data to be valid, only first byte of mask is set */
3736 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3737 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3738 ARRAY_SIZE(tcf.dst_ip)))
3740 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3741 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3742 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3743 sizeof(cfilter.ip.v6.src_ip6)))
3746 if (cfilter.vlan_id != cf->vlan_id)
3749 hlist_del(&cf->cloud_node);
3751 vf->num_cloud_filters--;
3755 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3760 * i40e_vc_add_cloud_filter
3761 * @vf: pointer to the VF info
3762 * @msg: pointer to the msg buffer
3764 * This function adds a cloud filter programmed as TC filter for ADq
3766 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3768 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3769 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3770 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3771 struct i40e_cloud_filter *cfilter = NULL;
3772 struct i40e_pf *pf = vf->pf;
3773 struct i40e_vsi *vsi = NULL;
3774 i40e_status aq_ret = 0;
3777 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3778 aq_ret = I40E_ERR_PARAM;
3782 if (!vf->adq_enabled) {
3783 dev_info(&pf->pdev->dev,
3784 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3786 aq_ret = I40E_ERR_PARAM;
3790 if (i40e_validate_cloud_filter(vf, vcf)) {
3791 dev_info(&pf->pdev->dev,
3792 "VF %d: Invalid input/s, can't apply cloud filter\n",
3794 aq_ret = I40E_ERR_PARAM;
3798 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3802 /* parse destination mac address */
3803 for (i = 0; i < ETH_ALEN; i++)
3804 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3806 /* parse source mac address */
3807 for (i = 0; i < ETH_ALEN; i++)
3808 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3810 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3811 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3812 cfilter->src_port = mask.src_port & tcf.src_port;
3814 switch (vcf->flow_type) {
3815 case VIRTCHNL_TCP_V4_FLOW:
3816 cfilter->n_proto = ETH_P_IP;
3817 if (mask.dst_ip[0] & tcf.dst_ip[0])
3818 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3819 ARRAY_SIZE(tcf.dst_ip));
3820 else if (mask.src_ip[0] & tcf.dst_ip[0])
3821 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3822 ARRAY_SIZE(tcf.dst_ip));
3824 case VIRTCHNL_TCP_V6_FLOW:
3825 cfilter->n_proto = ETH_P_IPV6;
3826 if (mask.dst_ip[3] & tcf.dst_ip[3])
3827 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3828 sizeof(cfilter->ip.v6.dst_ip6));
3829 if (mask.src_ip[3] & tcf.src_ip[3])
3830 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3831 sizeof(cfilter->ip.v6.src_ip6));
3834 /* TC filter can be configured based on different combinations
3835 * and in this case IP is not a part of filter config
3837 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3841 /* get the VSI to which the TC belongs to */
3842 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3843 cfilter->seid = vsi->seid;
3844 cfilter->flags = vcf->field_flags;
3846 /* Adding cloud filter programmed as TC filter */
3848 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3850 ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3852 dev_err(&pf->pdev->dev,
3853 "VF %d: Failed to add cloud filter, err %s aq_err %s\n",
3854 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3855 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3859 INIT_HLIST_NODE(&cfilter->cloud_node);
3860 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3861 /* release the pointer passing it to the collection */
3863 vf->num_cloud_filters++;
3867 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3872 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
3873 * @vf: pointer to the VF info
3874 * @msg: pointer to the msg buffer
3876 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
3878 struct virtchnl_tc_info *tci =
3879 (struct virtchnl_tc_info *)msg;
3880 struct i40e_pf *pf = vf->pf;
3881 struct i40e_link_status *ls = &pf->hw.phy.link_info;
3882 int i, adq_request_qps = 0;
3883 i40e_status aq_ret = 0;
3886 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3887 aq_ret = I40E_ERR_PARAM;
3891 /* ADq cannot be applied if spoof check is ON */
3893 dev_err(&pf->pdev->dev,
3894 "Spoof check is ON, turn it OFF to enable ADq\n");
3895 aq_ret = I40E_ERR_PARAM;
3899 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
3900 dev_err(&pf->pdev->dev,
3901 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
3903 aq_ret = I40E_ERR_PARAM;
3907 /* max number of traffic classes for VF currently capped at 4 */
3908 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
3909 dev_err(&pf->pdev->dev,
3910 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
3911 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
3912 aq_ret = I40E_ERR_PARAM;
3916 /* validate queues for each TC */
3917 for (i = 0; i < tci->num_tc; i++)
3918 if (!tci->list[i].count ||
3919 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
3920 dev_err(&pf->pdev->dev,
3921 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
3922 vf->vf_id, i, tci->list[i].count,
3923 I40E_DEFAULT_QUEUES_PER_VF);
3924 aq_ret = I40E_ERR_PARAM;
3928 /* need Max VF queues but already have default number of queues */
3929 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
3931 if (pf->queues_left < adq_request_qps) {
3932 dev_err(&pf->pdev->dev,
3933 "No queues left to allocate to VF %d\n",
3935 aq_ret = I40E_ERR_PARAM;
3938 /* we need to allocate max VF queues to enable ADq so as to
3939 * make sure ADq enabled VF always gets back queues when it
3940 * goes through a reset.
3942 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
3945 /* get link speed in MB to validate rate limit */
3946 speed = i40e_vc_link_speed2mbps(ls->link_speed);
3947 if (speed == SPEED_UNKNOWN) {
3948 dev_err(&pf->pdev->dev,
3949 "Cannot detect link speed\n");
3950 aq_ret = I40E_ERR_PARAM;
3954 /* parse data from the queue channel info */
3955 vf->num_tc = tci->num_tc;
3956 for (i = 0; i < vf->num_tc; i++) {
3957 if (tci->list[i].max_tx_rate) {
3958 if (tci->list[i].max_tx_rate > speed) {
3959 dev_err(&pf->pdev->dev,
3960 "Invalid max tx rate %llu specified for VF %d.",
3961 tci->list[i].max_tx_rate,
3963 aq_ret = I40E_ERR_PARAM;
3966 vf->ch[i].max_tx_rate =
3967 tci->list[i].max_tx_rate;
3970 vf->ch[i].num_qps = tci->list[i].count;
3973 /* set this flag only after making sure all inputs are sane */
3974 vf->adq_enabled = true;
3976 /* reset the VF in order to allocate resources */
3977 i40e_vc_reset_vf(vf, true);
3979 return I40E_SUCCESS;
3981 /* send the response to the VF */
3983 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
3988 * i40e_vc_del_qch_msg
3989 * @vf: pointer to the VF info
3990 * @msg: pointer to the msg buffer
3992 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
3994 struct i40e_pf *pf = vf->pf;
3995 i40e_status aq_ret = 0;
3997 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3998 aq_ret = I40E_ERR_PARAM;
4002 if (vf->adq_enabled) {
4003 i40e_del_all_cloud_filters(vf);
4005 vf->adq_enabled = false;
4007 dev_info(&pf->pdev->dev,
4008 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
4011 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
4013 aq_ret = I40E_ERR_PARAM;
4016 /* reset the VF in order to allocate resources */
4017 i40e_vc_reset_vf(vf, true);
4019 return I40E_SUCCESS;
4022 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
4027 * i40e_vc_process_vf_msg
4028 * @pf: pointer to the PF structure
4029 * @vf_id: source VF id
4030 * @v_opcode: operation code
4031 * @v_retval: unused return value code
4032 * @msg: pointer to the msg buffer
4033 * @msglen: msg length
4035 * called from the common aeq/arq handler to
4036 * process request from VF
4038 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
4039 u32 __always_unused v_retval, u8 *msg, u16 msglen)
4041 struct i40e_hw *hw = &pf->hw;
4042 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4046 pf->vf_aq_requests++;
4047 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4049 vf = &(pf->vf[local_vf_id]);
4051 /* Check if VF is disabled. */
4052 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4053 return I40E_ERR_PARAM;
4055 /* perform basic checks on the msg */
4056 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
4059 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
4060 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
4061 local_vf_id, v_opcode, msglen);
4063 case VIRTCHNL_STATUS_ERR_PARAM:
4071 case VIRTCHNL_OP_VERSION:
4072 ret = i40e_vc_get_version_msg(vf, msg);
4074 case VIRTCHNL_OP_GET_VF_RESOURCES:
4075 ret = i40e_vc_get_vf_resources_msg(vf, msg);
4076 i40e_vc_notify_vf_link_state(vf);
4078 case VIRTCHNL_OP_RESET_VF:
4079 i40e_vc_reset_vf(vf, false);
4082 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4083 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4085 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4086 ret = i40e_vc_config_queues_msg(vf, msg);
4088 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4089 ret = i40e_vc_config_irq_map_msg(vf, msg);
4091 case VIRTCHNL_OP_ENABLE_QUEUES:
4092 ret = i40e_vc_enable_queues_msg(vf, msg);
4093 i40e_vc_notify_vf_link_state(vf);
4095 case VIRTCHNL_OP_DISABLE_QUEUES:
4096 ret = i40e_vc_disable_queues_msg(vf, msg);
4098 case VIRTCHNL_OP_ADD_ETH_ADDR:
4099 ret = i40e_vc_add_mac_addr_msg(vf, msg);
4101 case VIRTCHNL_OP_DEL_ETH_ADDR:
4102 ret = i40e_vc_del_mac_addr_msg(vf, msg);
4104 case VIRTCHNL_OP_ADD_VLAN:
4105 ret = i40e_vc_add_vlan_msg(vf, msg);
4107 case VIRTCHNL_OP_DEL_VLAN:
4108 ret = i40e_vc_remove_vlan_msg(vf, msg);
4110 case VIRTCHNL_OP_GET_STATS:
4111 ret = i40e_vc_get_stats_msg(vf, msg);
4113 case VIRTCHNL_OP_IWARP:
4114 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
4116 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
4117 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true);
4119 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
4120 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false);
4122 case VIRTCHNL_OP_CONFIG_RSS_KEY:
4123 ret = i40e_vc_config_rss_key(vf, msg);
4125 case VIRTCHNL_OP_CONFIG_RSS_LUT:
4126 ret = i40e_vc_config_rss_lut(vf, msg);
4128 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4129 ret = i40e_vc_get_rss_hena(vf, msg);
4131 case VIRTCHNL_OP_SET_RSS_HENA:
4132 ret = i40e_vc_set_rss_hena(vf, msg);
4134 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4135 ret = i40e_vc_enable_vlan_stripping(vf, msg);
4137 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4138 ret = i40e_vc_disable_vlan_stripping(vf, msg);
4140 case VIRTCHNL_OP_REQUEST_QUEUES:
4141 ret = i40e_vc_request_queues_msg(vf, msg);
4143 case VIRTCHNL_OP_ENABLE_CHANNELS:
4144 ret = i40e_vc_add_qch_msg(vf, msg);
4146 case VIRTCHNL_OP_DISABLE_CHANNELS:
4147 ret = i40e_vc_del_qch_msg(vf, msg);
4149 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4150 ret = i40e_vc_add_cloud_filter(vf, msg);
4152 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4153 ret = i40e_vc_del_cloud_filter(vf, msg);
4155 case VIRTCHNL_OP_UNKNOWN:
4157 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
4158 v_opcode, local_vf_id);
4159 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
4160 I40E_ERR_NOT_IMPLEMENTED);
4168 * i40e_vc_process_vflr_event
4169 * @pf: pointer to the PF structure
4171 * called from the vlfr irq handler to
4172 * free up VF resources and state variables
4174 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4176 struct i40e_hw *hw = &pf->hw;
4177 u32 reg, reg_idx, bit_idx;
4181 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4184 /* Re-enable the VFLR interrupt cause here, before looking for which
4185 * VF got reset. Otherwise, if another VF gets a reset while the
4186 * first one is being processed, that interrupt will be lost, and
4187 * that VF will be stuck in reset forever.
4189 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4190 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4191 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
4194 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
4195 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
4196 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
4197 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
4198 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
4199 vf = &pf->vf[vf_id];
4200 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
4201 if (reg & BIT(bit_idx))
4202 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
4203 i40e_reset_vf(vf, true);
4211 * @pf: the physical function
4212 * @vf_id: VF identifier
4214 * Check that the VF is enabled and the VSI exists.
4216 * Returns 0 on success, negative on failure
4218 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4220 struct i40e_vsi *vsi;
4224 if (vf_id >= pf->num_alloc_vfs) {
4225 dev_err(&pf->pdev->dev,
4226 "Invalid VF Identifier %d\n", vf_id);
4230 vf = &pf->vf[vf_id];
4231 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
4239 * i40e_ndo_set_vf_mac
4240 * @netdev: network interface device structure
4241 * @vf_id: VF identifier
4244 * program VF mac address
4246 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4248 struct i40e_netdev_priv *np = netdev_priv(netdev);
4249 struct i40e_vsi *vsi = np->vsi;
4250 struct i40e_pf *pf = vsi->back;
4251 struct i40e_mac_filter *f;
4254 struct hlist_node *h;
4258 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4259 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4263 /* validate the request */
4264 ret = i40e_validate_vf(pf, vf_id);
4268 vf = &pf->vf[vf_id];
4270 /* When the VF is resetting wait until it is done.
4271 * It can take up to 200 milliseconds,
4272 * but wait for up to 300 milliseconds to be safe.
4273 * Acquire the VSI pointer only after the VF has been
4274 * properly initialized.
4276 for (i = 0; i < 15; i++) {
4277 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
4281 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4282 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4287 vsi = pf->vsi[vf->lan_vsi_idx];
4289 if (is_multicast_ether_addr(mac)) {
4290 dev_err(&pf->pdev->dev,
4291 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4296 /* Lock once because below invoked function add/del_filter requires
4297 * mac_filter_hash_lock to be held
4299 spin_lock_bh(&vsi->mac_filter_hash_lock);
4301 /* delete the temporary mac address */
4302 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4303 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4305 /* Delete all the filters for this VSI - we're going to kill it
4308 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4309 __i40e_del_filter(vsi, f);
4311 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4313 /* program mac filter */
4314 if (i40e_sync_vsi_filters(vsi)) {
4315 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4319 ether_addr_copy(vf->default_lan_addr.addr, mac);
4321 if (is_zero_ether_addr(mac)) {
4322 vf->pf_set_mac = false;
4323 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4325 vf->pf_set_mac = true;
4326 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4330 /* Force the VF interface down so it has to bring up with new MAC
4333 i40e_vc_reset_vf(vf, true);
4334 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4337 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4342 * i40e_ndo_set_vf_port_vlan
4343 * @netdev: network interface device structure
4344 * @vf_id: VF identifier
4345 * @vlan_id: mac address
4346 * @qos: priority setting
4347 * @vlan_proto: vlan protocol
4349 * program VF vlan id and/or qos
4351 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4352 u16 vlan_id, u8 qos, __be16 vlan_proto)
4354 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4355 struct i40e_netdev_priv *np = netdev_priv(netdev);
4356 bool allmulti = false, alluni = false;
4357 struct i40e_pf *pf = np->vsi->back;
4358 struct i40e_vsi *vsi;
4362 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4363 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4367 /* validate the request */
4368 ret = i40e_validate_vf(pf, vf_id);
4372 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4373 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4378 if (vlan_proto != htons(ETH_P_8021Q)) {
4379 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4380 ret = -EPROTONOSUPPORT;
4384 vf = &pf->vf[vf_id];
4385 vsi = pf->vsi[vf->lan_vsi_idx];
4386 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4387 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4393 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4394 /* duplicate request, so just return success */
4397 i40e_vlan_stripping_enable(vsi);
4398 i40e_vc_reset_vf(vf, true);
4399 /* During reset the VF got a new VSI, so refresh a pointer. */
4400 vsi = pf->vsi[vf->lan_vsi_idx];
4401 /* Locked once because multiple functions below iterate list */
4402 spin_lock_bh(&vsi->mac_filter_hash_lock);
4404 /* Check for condition where there was already a port VLAN ID
4405 * filter set and now it is being deleted by setting it to zero.
4406 * Additionally check for the condition where there was a port
4407 * VLAN but now there is a new and different port VLAN being set.
4408 * Before deleting all the old VLAN filters we must add new ones
4409 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4410 * MAC addresses deleted.
4412 if ((!(vlan_id || qos) ||
4413 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4415 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4417 dev_info(&vsi->back->pdev->dev,
4418 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4419 vsi->back->hw.aq.asq_last_status);
4420 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4425 if (vsi->info.pvid) {
4426 /* remove all filters on the old VLAN */
4427 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4431 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4433 /* disable promisc modes in case they were enabled */
4434 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4437 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4442 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4444 i40e_vsi_remove_pvid(vsi);
4445 spin_lock_bh(&vsi->mac_filter_hash_lock);
4448 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4449 vlan_id, qos, vf_id);
4451 /* add new VLAN filter for each MAC */
4452 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4454 dev_info(&vsi->back->pdev->dev,
4455 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4456 vsi->back->hw.aq.asq_last_status);
4457 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4461 /* remove the previously added non-VLAN MAC filters */
4462 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4465 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4467 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4470 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4473 /* Schedule the worker thread to take care of applying changes */
4474 i40e_service_event_schedule(vsi->back);
4477 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4481 /* The Port VLAN needs to be saved across resets the same as the
4482 * default LAN MAC address.
4484 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4486 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4488 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4495 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4500 * i40e_ndo_set_vf_bw
4501 * @netdev: network interface device structure
4502 * @vf_id: VF identifier
4503 * @min_tx_rate: Minimum Tx rate
4504 * @max_tx_rate: Maximum Tx rate
4506 * configure VF Tx rate
4508 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4511 struct i40e_netdev_priv *np = netdev_priv(netdev);
4512 struct i40e_pf *pf = np->vsi->back;
4513 struct i40e_vsi *vsi;
4517 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4518 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4522 /* validate the request */
4523 ret = i40e_validate_vf(pf, vf_id);
4528 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4529 min_tx_rate, vf_id);
4534 vf = &pf->vf[vf_id];
4535 vsi = pf->vsi[vf->lan_vsi_idx];
4536 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4537 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4543 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4547 vf->tx_rate = max_tx_rate;
4549 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4554 * i40e_ndo_get_vf_config
4555 * @netdev: network interface device structure
4556 * @vf_id: VF identifier
4557 * @ivi: VF configuration structure
4559 * return VF configuration
4561 int i40e_ndo_get_vf_config(struct net_device *netdev,
4562 int vf_id, struct ifla_vf_info *ivi)
4564 struct i40e_netdev_priv *np = netdev_priv(netdev);
4565 struct i40e_vsi *vsi = np->vsi;
4566 struct i40e_pf *pf = vsi->back;
4570 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4571 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4575 /* validate the request */
4576 ret = i40e_validate_vf(pf, vf_id);
4580 vf = &pf->vf[vf_id];
4581 /* first vsi is always the LAN vsi */
4582 vsi = pf->vsi[vf->lan_vsi_idx];
4590 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4592 ivi->max_tx_rate = vf->tx_rate;
4593 ivi->min_tx_rate = 0;
4594 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
4595 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
4596 I40E_VLAN_PRIORITY_SHIFT;
4597 if (vf->link_forced == false)
4598 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4599 else if (vf->link_up == true)
4600 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4602 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4603 ivi->spoofchk = vf->spoofchk;
4604 ivi->trusted = vf->trusted;
4608 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4613 * i40e_ndo_set_vf_link_state
4614 * @netdev: network interface device structure
4615 * @vf_id: VF identifier
4616 * @link: required link state
4618 * Set the link state of a specified VF, regardless of physical link state
4620 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4622 struct i40e_netdev_priv *np = netdev_priv(netdev);
4623 struct i40e_pf *pf = np->vsi->back;
4624 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4625 struct virtchnl_pf_event pfe;
4626 struct i40e_hw *hw = &pf->hw;
4631 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4632 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4636 /* validate the request */
4637 if (vf_id >= pf->num_alloc_vfs) {
4638 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4643 vf = &pf->vf[vf_id];
4644 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4646 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4647 pfe.severity = PF_EVENT_SEVERITY_INFO;
4650 case IFLA_VF_LINK_STATE_AUTO:
4651 vf->link_forced = false;
4652 i40e_set_vf_link_state(vf, &pfe, ls);
4654 case IFLA_VF_LINK_STATE_ENABLE:
4655 vf->link_forced = true;
4657 i40e_set_vf_link_state(vf, &pfe, ls);
4659 case IFLA_VF_LINK_STATE_DISABLE:
4660 vf->link_forced = true;
4661 vf->link_up = false;
4662 i40e_set_vf_link_state(vf, &pfe, ls);
4668 /* Notify the VF of its new link state */
4669 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4670 0, (u8 *)&pfe, sizeof(pfe), NULL);
4673 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4678 * i40e_ndo_set_vf_spoofchk
4679 * @netdev: network interface device structure
4680 * @vf_id: VF identifier
4681 * @enable: flag to enable or disable feature
4683 * Enable or disable VF spoof checking
4685 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4687 struct i40e_netdev_priv *np = netdev_priv(netdev);
4688 struct i40e_vsi *vsi = np->vsi;
4689 struct i40e_pf *pf = vsi->back;
4690 struct i40e_vsi_context ctxt;
4691 struct i40e_hw *hw = &pf->hw;
4695 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4696 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4700 /* validate the request */
4701 if (vf_id >= pf->num_alloc_vfs) {
4702 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4707 vf = &(pf->vf[vf_id]);
4708 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4709 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4715 if (enable == vf->spoofchk)
4718 vf->spoofchk = enable;
4719 memset(&ctxt, 0, sizeof(ctxt));
4720 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4721 ctxt.pf_num = pf->hw.pf_id;
4722 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4724 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4725 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4726 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4728 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4733 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4738 * i40e_ndo_set_vf_trust
4739 * @netdev: network interface device structure of the pf
4740 * @vf_id: VF identifier
4741 * @setting: trust setting
4743 * Enable or disable VF trust setting
4745 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4747 struct i40e_netdev_priv *np = netdev_priv(netdev);
4748 struct i40e_pf *pf = np->vsi->back;
4752 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4753 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4757 /* validate the request */
4758 if (vf_id >= pf->num_alloc_vfs) {
4759 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4764 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4765 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4770 vf = &pf->vf[vf_id];
4772 if (setting == vf->trusted)
4775 vf->trusted = setting;
4777 /* request PF to sync mac/vlan filters for the VF */
4778 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);
4779 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
4781 i40e_vc_reset_vf(vf, true);
4782 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4783 vf_id, setting ? "" : "un");
4785 if (vf->adq_enabled) {
4787 dev_info(&pf->pdev->dev,
4788 "VF %u no longer Trusted, deleting all cloud filters\n",
4790 i40e_del_all_cloud_filters(vf);
4795 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4800 * i40e_get_vf_stats - populate some stats for the VF
4801 * @netdev: the netdev of the PF
4802 * @vf_id: the host OS identifier (0-127)
4803 * @vf_stats: pointer to the OS memory to be initialized
4805 int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4806 struct ifla_vf_stats *vf_stats)
4808 struct i40e_netdev_priv *np = netdev_priv(netdev);
4809 struct i40e_pf *pf = np->vsi->back;
4810 struct i40e_eth_stats *stats;
4811 struct i40e_vsi *vsi;
4814 /* validate the request */
4815 if (i40e_validate_vf(pf, vf_id))
4818 vf = &pf->vf[vf_id];
4819 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4820 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4824 vsi = pf->vsi[vf->lan_vsi_idx];
4828 i40e_update_eth_stats(vsi);
4829 stats = &vsi->eth_stats;
4831 memset(vf_stats, 0, sizeof(*vf_stats));
4833 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4834 stats->rx_multicast;
4835 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4836 stats->tx_multicast;
4837 vf_stats->rx_bytes = stats->rx_bytes;
4838 vf_stats->tx_bytes = stats->tx_bytes;
4839 vf_stats->broadcast = stats->rx_broadcast;
4840 vf_stats->multicast = stats->rx_multicast;
4841 vf_stats->rx_dropped = stats->rx_discards;
4842 vf_stats->tx_dropped = stats->tx_discards;