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 /* If the VFs have been disabled, this means something else is
1540 * resetting the VF, so we shouldn't continue.
1542 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1545 i40e_trigger_vf_reset(vf, flr);
1547 /* poll VPGEN_VFRSTAT reg to make sure
1548 * that reset is complete
1550 for (i = 0; i < 10; i++) {
1551 /* VF reset requires driver to first reset the VF and then
1552 * poll the status register to make sure that the reset
1553 * completed successfully. Due to internal HW FIFO flushes,
1554 * we must wait 10ms before the register will be valid.
1556 usleep_range(10000, 20000);
1557 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1558 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1565 usleep_range(10000, 20000);
1568 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1570 usleep_range(10000, 20000);
1572 /* On initial reset, we don't have any queues to disable */
1573 if (vf->lan_vsi_idx != 0)
1574 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1576 i40e_cleanup_reset_vf(vf);
1579 clear_bit(__I40E_VF_DISABLE, pf->state);
1585 * i40e_reset_all_vfs
1586 * @pf: pointer to the PF structure
1587 * @flr: VFLR was issued or not
1589 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1590 * VF, then do all the waiting in one chunk, and finally finish restoring each
1591 * VF after the wait. This is useful during PF routines which need to reset
1592 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1594 * Returns true if any VFs were reset, and false otherwise.
1596 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1598 struct i40e_hw *hw = &pf->hw;
1603 /* If we don't have any VFs, then there is nothing to reset */
1604 if (!pf->num_alloc_vfs)
1607 /* If VFs have been disabled, there is no need to reset */
1608 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1611 /* Begin reset on all VFs at once */
1612 for (v = 0; v < pf->num_alloc_vfs; v++)
1613 i40e_trigger_vf_reset(&pf->vf[v], flr);
1615 /* HW requires some time to make sure it can flush the FIFO for a VF
1616 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1617 * sequence to make sure that it has completed. We'll keep track of
1618 * the VFs using a simple iterator that increments once that VF has
1619 * finished resetting.
1621 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1622 usleep_range(10000, 20000);
1624 /* Check each VF in sequence, beginning with the VF to fail
1625 * the previous check.
1627 while (v < pf->num_alloc_vfs) {
1629 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1630 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1633 /* If the current VF has finished resetting, move on
1634 * to the next VF in sequence.
1641 usleep_range(10000, 20000);
1643 /* Display a warning if at least one VF didn't manage to reset in
1644 * time, but continue on with the operation.
1646 if (v < pf->num_alloc_vfs)
1647 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1649 usleep_range(10000, 20000);
1651 /* Begin disabling all the rings associated with VFs, but do not wait
1654 for (v = 0; v < pf->num_alloc_vfs; v++) {
1655 /* On initial reset, we don't have any queues to disable */
1656 if (pf->vf[v].lan_vsi_idx == 0)
1659 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1662 /* Now that we've notified HW to disable all of the VF rings, wait
1663 * until they finish.
1665 for (v = 0; v < pf->num_alloc_vfs; v++) {
1666 /* On initial reset, we don't have any queues to disable */
1667 if (pf->vf[v].lan_vsi_idx == 0)
1670 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1673 /* Hw may need up to 50ms to finish disabling the RX queues. We
1674 * minimize the wait by delaying only once for all VFs.
1678 /* Finish the reset on each VF */
1679 for (v = 0; v < pf->num_alloc_vfs; v++)
1680 i40e_cleanup_reset_vf(&pf->vf[v]);
1683 clear_bit(__I40E_VF_DISABLE, pf->state);
1690 * @pf: pointer to the PF structure
1694 void i40e_free_vfs(struct i40e_pf *pf)
1696 struct i40e_hw *hw = &pf->hw;
1697 u32 reg_idx, bit_idx;
1703 set_bit(__I40E_VFS_RELEASING, pf->state);
1704 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1705 usleep_range(1000, 2000);
1707 i40e_notify_client_of_vf_enable(pf, 0);
1709 /* Disable IOV before freeing resources. This lets any VF drivers
1710 * running in the host get themselves cleaned up before we yank
1711 * the carpet out from underneath their feet.
1713 if (!pci_vfs_assigned(pf->pdev))
1714 pci_disable_sriov(pf->pdev);
1716 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1718 /* Amortize wait time by stopping all VFs at the same time */
1719 for (i = 0; i < pf->num_alloc_vfs; i++) {
1720 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1723 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1726 for (i = 0; i < pf->num_alloc_vfs; i++) {
1727 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1730 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1733 /* free up VF resources */
1734 tmp = pf->num_alloc_vfs;
1735 pf->num_alloc_vfs = 0;
1736 for (i = 0; i < tmp; i++) {
1737 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1738 i40e_free_vf_res(&pf->vf[i]);
1739 /* disable qp mappings */
1740 i40e_disable_vf_mappings(&pf->vf[i]);
1746 /* This check is for when the driver is unloaded while VFs are
1747 * assigned. Setting the number of VFs to 0 through sysfs is caught
1748 * before this function ever gets called.
1750 if (!pci_vfs_assigned(pf->pdev)) {
1751 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1752 * work correctly when SR-IOV gets re-enabled.
1754 for (vf_id = 0; vf_id < tmp; vf_id++) {
1755 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1756 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1757 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1760 clear_bit(__I40E_VF_DISABLE, pf->state);
1761 clear_bit(__I40E_VFS_RELEASING, pf->state);
1764 #ifdef CONFIG_PCI_IOV
1767 * @pf: pointer to the PF structure
1768 * @num_alloc_vfs: number of VFs to allocate
1770 * allocate VF resources
1772 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1774 struct i40e_vf *vfs;
1777 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1778 i40e_irq_dynamic_disable_icr0(pf);
1780 /* Check to see if we're just allocating resources for extant VFs */
1781 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1782 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1784 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1785 pf->num_alloc_vfs = 0;
1789 /* allocate memory */
1790 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1797 /* apply default profile */
1798 for (i = 0; i < num_alloc_vfs; i++) {
1800 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1803 /* assign default capabilities */
1804 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1805 vfs[i].spoofchk = true;
1807 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1810 pf->num_alloc_vfs = num_alloc_vfs;
1812 /* VF resources get allocated during reset */
1813 i40e_reset_all_vfs(pf, false);
1815 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1821 /* Re-enable interrupt 0. */
1822 i40e_irq_dynamic_enable_icr0(pf);
1828 * i40e_pci_sriov_enable
1829 * @pdev: pointer to a pci_dev structure
1830 * @num_vfs: number of VFs to allocate
1832 * Enable or change the number of VFs
1834 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1836 #ifdef CONFIG_PCI_IOV
1837 struct i40e_pf *pf = pci_get_drvdata(pdev);
1838 int pre_existing_vfs = pci_num_vf(pdev);
1841 if (test_bit(__I40E_TESTING, pf->state)) {
1842 dev_warn(&pdev->dev,
1843 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1848 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1850 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1853 if (num_vfs > pf->num_req_vfs) {
1854 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1855 num_vfs, pf->num_req_vfs);
1860 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1861 err = i40e_alloc_vfs(pf, num_vfs);
1863 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1877 * i40e_pci_sriov_configure
1878 * @pdev: pointer to a pci_dev structure
1879 * @num_vfs: number of VFs to allocate
1881 * Enable or change the number of VFs. Called when the user updates the number
1884 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1886 struct i40e_pf *pf = pci_get_drvdata(pdev);
1889 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1890 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1895 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1896 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1897 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1899 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1900 goto sriov_configure_out;
1903 if (!pci_vfs_assigned(pf->pdev)) {
1905 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1906 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1908 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1910 goto sriov_configure_out;
1912 sriov_configure_out:
1913 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1917 /***********************virtual channel routines******************/
1920 * i40e_vc_send_msg_to_vf
1921 * @vf: pointer to the VF info
1922 * @v_opcode: virtual channel opcode
1923 * @v_retval: virtual channel return value
1924 * @msg: pointer to the msg buffer
1925 * @msglen: msg length
1929 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1930 u32 v_retval, u8 *msg, u16 msglen)
1937 /* validate the request */
1938 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1943 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1945 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1948 dev_info(&pf->pdev->dev,
1949 "Unable to send the message to VF %d aq_err %d\n",
1950 vf->vf_id, pf->hw.aq.asq_last_status);
1958 * i40e_vc_send_resp_to_vf
1959 * @vf: pointer to the VF info
1960 * @opcode: operation code
1961 * @retval: return value
1963 * send resp msg to VF
1965 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1966 enum virtchnl_ops opcode,
1969 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1973 * i40e_sync_vf_state
1974 * @vf: pointer to the VF info
1977 * Called from a VF message to synchronize the service with a potential
1980 static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
1984 /* When handling some messages, it needs VF state to be set.
1985 * It is possible that this flag is cleared during VF reset,
1986 * so there is a need to wait until the end of the reset to
1987 * handle the request message correctly.
1989 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
1990 if (test_bit(state, &vf->vf_states))
1992 usleep_range(10000, 20000);
1995 return test_bit(state, &vf->vf_states);
1999 * i40e_vc_get_version_msg
2000 * @vf: pointer to the VF info
2001 * @msg: pointer to the msg buffer
2003 * called from the VF to request the API version used by the PF
2005 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2007 struct virtchnl_version_info info = {
2008 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2011 vf->vf_ver = *(struct virtchnl_version_info *)msg;
2012 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2013 if (VF_IS_V10(&vf->vf_ver))
2014 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2015 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
2016 I40E_SUCCESS, (u8 *)&info,
2017 sizeof(struct virtchnl_version_info));
2021 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
2022 * @vf: pointer to VF structure
2024 static void i40e_del_qch(struct i40e_vf *vf)
2026 struct i40e_pf *pf = vf->pf;
2029 /* first element in the array belongs to primary VF VSI and we shouldn't
2030 * delete it. We should however delete the rest of the VSIs created
2032 for (i = 1; i < vf->num_tc; i++) {
2033 if (vf->ch[i].vsi_idx) {
2034 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
2035 vf->ch[i].vsi_idx = 0;
2036 vf->ch[i].vsi_id = 0;
2042 * i40e_vc_get_vf_resources_msg
2043 * @vf: pointer to the VF info
2044 * @msg: pointer to the msg buffer
2046 * called from the VF to request its resources
2048 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2050 struct virtchnl_vf_resource *vfres = NULL;
2051 struct i40e_pf *pf = vf->pf;
2052 i40e_status aq_ret = 0;
2053 struct i40e_vsi *vsi;
2058 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
2059 aq_ret = I40E_ERR_PARAM;
2063 len = struct_size(vfres, vsi_res, num_vsis);
2064 vfres = kzalloc(len, GFP_KERNEL);
2066 aq_ret = I40E_ERR_NO_MEMORY;
2070 if (VF_IS_V11(&vf->vf_ver))
2071 vf->driver_caps = *(u32 *)msg;
2073 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2074 VIRTCHNL_VF_OFFLOAD_RSS_REG |
2075 VIRTCHNL_VF_OFFLOAD_VLAN;
2077 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2078 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2079 vsi = pf->vsi[vf->lan_vsi_idx];
2080 if (!vsi->info.pvid)
2081 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2083 if (i40e_vf_client_capable(pf, vf->vf_id) &&
2084 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
2085 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
2086 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
2088 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
2091 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2092 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2094 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
2095 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2096 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2098 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2101 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
2102 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2103 vfres->vf_cap_flags |=
2104 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2107 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2108 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2110 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
2111 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2112 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2114 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2115 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
2116 dev_err(&pf->pdev->dev,
2117 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2119 aq_ret = I40E_ERR_PARAM;
2122 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2125 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
2126 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2127 vfres->vf_cap_flags |=
2128 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2131 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2132 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2134 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2135 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2137 vfres->num_vsis = num_vsis;
2138 vfres->num_queue_pairs = vf->num_queue_pairs;
2139 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2140 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2141 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2143 if (vf->lan_vsi_idx) {
2144 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2145 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2146 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2147 /* VFs only use TC 0 */
2148 vfres->vsi_res[0].qset_handle
2149 = le16_to_cpu(vsi->info.qs_handle[0]);
2150 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2151 vf->default_lan_addr.addr);
2153 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2156 /* send the response back to the VF */
2157 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2158 aq_ret, (u8 *)vfres, len);
2165 * i40e_vc_config_promiscuous_mode_msg
2166 * @vf: pointer to the VF info
2167 * @msg: pointer to the msg buffer
2169 * called from the VF to configure the promiscuous mode of
2172 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2174 struct virtchnl_promisc_info *info =
2175 (struct virtchnl_promisc_info *)msg;
2176 struct i40e_pf *pf = vf->pf;
2177 i40e_status aq_ret = 0;
2178 bool allmulti = false;
2179 bool alluni = false;
2181 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2182 aq_ret = I40E_ERR_PARAM;
2185 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2186 dev_err(&pf->pdev->dev,
2187 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2190 /* Lie to the VF on purpose, because this is an error we can
2191 * ignore. Unprivileged VF is not a virtual channel error.
2197 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2198 aq_ret = I40E_ERR_PARAM;
2202 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2203 aq_ret = I40E_ERR_PARAM;
2207 /* Multicast promiscuous handling*/
2208 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2211 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2213 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2219 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2221 dev_info(&pf->pdev->dev,
2222 "VF %d successfully set multicast promiscuous mode\n",
2224 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2226 dev_info(&pf->pdev->dev,
2227 "VF %d successfully unset multicast promiscuous mode\n",
2231 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2233 dev_info(&pf->pdev->dev,
2234 "VF %d successfully set unicast promiscuous mode\n",
2236 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2238 dev_info(&pf->pdev->dev,
2239 "VF %d successfully unset unicast promiscuous mode\n",
2243 /* send the response to the VF */
2244 return i40e_vc_send_resp_to_vf(vf,
2245 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2250 * i40e_vc_config_queues_msg
2251 * @vf: pointer to the VF info
2252 * @msg: pointer to the msg buffer
2254 * called from the VF to configure the rx/tx
2257 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2259 struct virtchnl_vsi_queue_config_info *qci =
2260 (struct virtchnl_vsi_queue_config_info *)msg;
2261 struct virtchnl_queue_pair_info *qpi;
2262 u16 vsi_id, vsi_queue_id = 0;
2263 struct i40e_pf *pf = vf->pf;
2264 i40e_status aq_ret = 0;
2265 int i, j = 0, idx = 0;
2266 struct i40e_vsi *vsi;
2267 u16 num_qps_all = 0;
2269 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2270 aq_ret = I40E_ERR_PARAM;
2274 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2275 aq_ret = I40E_ERR_PARAM;
2279 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2280 aq_ret = I40E_ERR_PARAM;
2284 if (vf->adq_enabled) {
2285 for (i = 0; i < vf->num_tc; i++)
2286 num_qps_all += vf->ch[i].num_qps;
2287 if (num_qps_all != qci->num_queue_pairs) {
2288 aq_ret = I40E_ERR_PARAM;
2293 vsi_id = qci->vsi_id;
2295 for (i = 0; i < qci->num_queue_pairs; i++) {
2296 qpi = &qci->qpair[i];
2298 if (!vf->adq_enabled) {
2299 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2300 qpi->txq.queue_id)) {
2301 aq_ret = I40E_ERR_PARAM;
2305 vsi_queue_id = qpi->txq.queue_id;
2307 if (qpi->txq.vsi_id != qci->vsi_id ||
2308 qpi->rxq.vsi_id != qci->vsi_id ||
2309 qpi->rxq.queue_id != vsi_queue_id) {
2310 aq_ret = I40E_ERR_PARAM;
2315 if (vf->adq_enabled) {
2316 if (idx >= ARRAY_SIZE(vf->ch)) {
2317 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2320 vsi_id = vf->ch[idx].vsi_id;
2323 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2325 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2327 aq_ret = I40E_ERR_PARAM;
2331 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2332 * VF does not know about these additional VSIs and all
2333 * it cares is about its own queues. PF configures these queues
2334 * to its appropriate VSIs based on TC mapping
2336 if (vf->adq_enabled) {
2337 if (idx >= ARRAY_SIZE(vf->ch)) {
2338 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2341 if (j == (vf->ch[idx].num_qps - 1)) {
2343 j = 0; /* resetting the queue count */
2351 /* set vsi num_queue_pairs in use to num configured by VF */
2352 if (!vf->adq_enabled) {
2353 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2354 qci->num_queue_pairs;
2356 for (i = 0; i < vf->num_tc; i++) {
2357 vsi = pf->vsi[vf->ch[i].vsi_idx];
2358 vsi->num_queue_pairs = vf->ch[i].num_qps;
2360 if (i40e_update_adq_vsi_queues(vsi, i)) {
2361 aq_ret = I40E_ERR_CONFIG;
2368 /* send the response to the VF */
2369 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2374 * i40e_validate_queue_map - check queue map is valid
2375 * @vf: the VF structure pointer
2377 * @queuemap: Tx or Rx queue map
2379 * check if Tx or Rx queue map is valid
2381 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2382 unsigned long queuemap)
2384 u16 vsi_queue_id, queue_id;
2386 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2387 if (vf->adq_enabled) {
2388 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2389 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2391 queue_id = vsi_queue_id;
2394 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2402 * i40e_vc_config_irq_map_msg
2403 * @vf: pointer to the VF info
2404 * @msg: pointer to the msg buffer
2406 * called from the VF to configure the irq to
2409 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2411 struct virtchnl_irq_map_info *irqmap_info =
2412 (struct virtchnl_irq_map_info *)msg;
2413 struct virtchnl_vector_map *map;
2415 i40e_status aq_ret = 0;
2418 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2419 aq_ret = I40E_ERR_PARAM;
2423 if (irqmap_info->num_vectors >
2424 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2425 aq_ret = I40E_ERR_PARAM;
2429 for (i = 0; i < irqmap_info->num_vectors; i++) {
2430 map = &irqmap_info->vecmap[i];
2431 /* validate msg params */
2432 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2433 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2434 aq_ret = I40E_ERR_PARAM;
2437 vsi_id = map->vsi_id;
2439 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2440 aq_ret = I40E_ERR_PARAM;
2444 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2445 aq_ret = I40E_ERR_PARAM;
2449 i40e_config_irq_link_list(vf, vsi_id, map);
2452 /* send the response to the VF */
2453 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2458 * i40e_ctrl_vf_tx_rings
2459 * @vsi: the SRIOV VSI being configured
2460 * @q_map: bit map of the queues to be enabled
2461 * @enable: start or stop the queue
2463 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2466 struct i40e_pf *pf = vsi->back;
2470 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2471 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2472 vsi->base_queue + q_id,
2473 false /*is xdp*/, enable);
2481 * i40e_ctrl_vf_rx_rings
2482 * @vsi: the SRIOV VSI being configured
2483 * @q_map: bit map of the queues to be enabled
2484 * @enable: start or stop the queue
2486 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2489 struct i40e_pf *pf = vsi->back;
2493 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2494 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2503 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2504 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2506 * Returns true if validation was successful, else false.
2508 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2510 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2511 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2512 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2519 * i40e_vc_enable_queues_msg
2520 * @vf: pointer to the VF info
2521 * @msg: pointer to the msg buffer
2523 * called from the VF to enable all or specific queue(s)
2525 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2527 struct virtchnl_queue_select *vqs =
2528 (struct virtchnl_queue_select *)msg;
2529 struct i40e_pf *pf = vf->pf;
2530 i40e_status aq_ret = 0;
2533 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2534 aq_ret = I40E_ERR_PARAM;
2538 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2539 aq_ret = I40E_ERR_PARAM;
2543 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2544 aq_ret = I40E_ERR_PARAM;
2548 /* Use the queue bit map sent by the VF */
2549 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2551 aq_ret = I40E_ERR_TIMEOUT;
2554 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2556 aq_ret = I40E_ERR_TIMEOUT;
2560 /* need to start the rings for additional ADq VSI's as well */
2561 if (vf->adq_enabled) {
2562 /* zero belongs to LAN VSI */
2563 for (i = 1; i < vf->num_tc; i++) {
2564 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2565 aq_ret = I40E_ERR_TIMEOUT;
2570 /* send the response to the VF */
2571 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2576 * i40e_vc_disable_queues_msg
2577 * @vf: pointer to the VF info
2578 * @msg: pointer to the msg buffer
2580 * called from the VF to disable all or specific
2583 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2585 struct virtchnl_queue_select *vqs =
2586 (struct virtchnl_queue_select *)msg;
2587 struct i40e_pf *pf = vf->pf;
2588 i40e_status aq_ret = 0;
2590 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2591 aq_ret = I40E_ERR_PARAM;
2595 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2596 aq_ret = I40E_ERR_PARAM;
2600 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2601 aq_ret = I40E_ERR_PARAM;
2605 /* Use the queue bit map sent by the VF */
2606 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2608 aq_ret = I40E_ERR_TIMEOUT;
2611 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2613 aq_ret = I40E_ERR_TIMEOUT;
2617 /* send the response to the VF */
2618 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2623 * i40e_check_enough_queue - find big enough queue number
2624 * @vf: pointer to the VF info
2625 * @needed: the number of items needed
2627 * Returns the base item index of the queue, or negative for error
2629 static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2631 unsigned int i, cur_queues, more, pool_size;
2632 struct i40e_lump_tracking *pile;
2633 struct i40e_pf *pf = vf->pf;
2634 struct i40e_vsi *vsi;
2636 vsi = pf->vsi[vf->lan_vsi_idx];
2637 cur_queues = vsi->alloc_queue_pairs;
2639 /* if current allocated queues are enough for need */
2640 if (cur_queues >= needed)
2641 return vsi->base_queue;
2644 if (cur_queues > 0) {
2645 /* if the allocated queues are not zero
2646 * just check if there are enough queues for more
2647 * behind the allocated queues.
2649 more = needed - cur_queues;
2650 for (i = vsi->base_queue + cur_queues;
2651 i < pile->num_entries; i++) {
2652 if (pile->list[i] & I40E_PILE_VALID_BIT)
2656 /* there is enough */
2657 return vsi->base_queue;
2662 for (i = 0; i < pile->num_entries; i++) {
2663 if (pile->list[i] & I40E_PILE_VALID_BIT) {
2667 if (needed <= ++pool_size)
2668 /* there is enough */
2676 * i40e_vc_request_queues_msg
2677 * @vf: pointer to the VF info
2678 * @msg: pointer to the msg buffer
2680 * VFs get a default number of queues but can use this message to request a
2681 * different number. If the request is successful, PF will reset the VF and
2682 * return 0. If unsuccessful, PF will send message informing VF of number of
2683 * available queues and return result of sending VF a message.
2685 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2687 struct virtchnl_vf_res_request *vfres =
2688 (struct virtchnl_vf_res_request *)msg;
2689 u16 req_pairs = vfres->num_queue_pairs;
2690 u8 cur_pairs = vf->num_queue_pairs;
2691 struct i40e_pf *pf = vf->pf;
2693 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
2696 if (req_pairs > I40E_MAX_VF_QUEUES) {
2697 dev_err(&pf->pdev->dev,
2698 "VF %d tried to request more than %d queues.\n",
2700 I40E_MAX_VF_QUEUES);
2701 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2702 } else if (req_pairs - cur_pairs > pf->queues_left) {
2703 dev_warn(&pf->pdev->dev,
2704 "VF %d requested %d more queues, but only %d left.\n",
2706 req_pairs - cur_pairs,
2708 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2709 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
2710 dev_warn(&pf->pdev->dev,
2711 "VF %d requested %d more queues, but there is not enough for it.\n",
2713 req_pairs - cur_pairs);
2714 vfres->num_queue_pairs = cur_pairs;
2716 /* successful request */
2717 vf->num_req_queues = req_pairs;
2718 i40e_vc_reset_vf(vf, true);
2722 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2723 (u8 *)vfres, sizeof(*vfres));
2727 * i40e_vc_get_stats_msg
2728 * @vf: pointer to the VF info
2729 * @msg: pointer to the msg buffer
2731 * called from the VF to get vsi stats
2733 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2735 struct virtchnl_queue_select *vqs =
2736 (struct virtchnl_queue_select *)msg;
2737 struct i40e_pf *pf = vf->pf;
2738 struct i40e_eth_stats stats;
2739 i40e_status aq_ret = 0;
2740 struct i40e_vsi *vsi;
2742 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2744 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2745 aq_ret = I40E_ERR_PARAM;
2749 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2750 aq_ret = I40E_ERR_PARAM;
2754 vsi = pf->vsi[vf->lan_vsi_idx];
2756 aq_ret = I40E_ERR_PARAM;
2759 i40e_update_eth_stats(vsi);
2760 stats = vsi->eth_stats;
2763 /* send the response back to the VF */
2764 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2765 (u8 *)&stats, sizeof(stats));
2768 #define I40E_MAX_MACVLAN_PER_HW 3072
2769 #define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2771 /* If the VF is not trusted restrict the number of MAC/VLAN it can program
2772 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2774 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2775 #define I40E_VC_MAX_VLAN_PER_VF 16
2777 #define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2778 ({ typeof(vf_num) vf_num_ = (vf_num); \
2779 typeof(num_ports) num_ports_ = (num_ports); \
2780 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2781 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2782 I40E_VC_MAX_MAC_ADDR_PER_VF; })
2784 * i40e_check_vf_permission
2785 * @vf: pointer to the VF info
2786 * @al: MAC address list from virtchnl
2788 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2789 * if any address in the list is not valid. Checks the following conditions:
2791 * 1) broadcast and zero addresses are never valid
2792 * 2) unicast addresses are not allowed if the VMM has administratively set
2793 * the VF MAC address, unless the VF is marked as privileged.
2794 * 3) There is enough space to add all the addresses.
2796 * Note that to guarantee consistency, it is expected this function be called
2797 * while holding the mac_filter_hash_lock, as otherwise the current number of
2798 * addresses might not be accurate.
2800 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2801 struct virtchnl_ether_addr_list *al)
2803 struct i40e_pf *pf = vf->pf;
2804 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2805 struct i40e_hw *hw = &pf->hw;
2806 int mac2add_cnt = 0;
2809 for (i = 0; i < al->num_elements; i++) {
2810 struct i40e_mac_filter *f;
2811 u8 *addr = al->list[i].addr;
2813 if (is_broadcast_ether_addr(addr) ||
2814 is_zero_ether_addr(addr)) {
2815 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2817 return I40E_ERR_INVALID_MAC_ADDR;
2820 /* If the host VMM administrator has set the VF MAC address
2821 * administratively via the ndo_set_vf_mac command then deny
2822 * permission to the VF to add or delete unicast MAC addresses.
2823 * Unless the VF is privileged and then it can do whatever.
2824 * The VF may request to set the MAC address filter already
2825 * assigned to it so do not return an error in that case.
2827 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2828 !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
2829 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2830 dev_err(&pf->pdev->dev,
2831 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2835 /*count filters that really will be added*/
2836 f = i40e_find_mac(vsi, addr);
2841 /* If this VF is not privileged, then we can't add more than a limited
2842 * number of addresses. Check to make sure that the additions do not
2843 * push us over the limit.
2845 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2846 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2847 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2848 dev_err(&pf->pdev->dev,
2849 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2852 /* If this VF is trusted, it can use more resources than untrusted.
2853 * However to ensure that every trusted VF has appropriate number of
2854 * resources, divide whole pool of resources per port and then across
2858 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2859 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2861 dev_err(&pf->pdev->dev,
2862 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2870 * i40e_vc_add_mac_addr_msg
2871 * @vf: pointer to the VF info
2872 * @msg: pointer to the msg buffer
2874 * add guest mac address filter
2876 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2878 struct virtchnl_ether_addr_list *al =
2879 (struct virtchnl_ether_addr_list *)msg;
2880 struct i40e_pf *pf = vf->pf;
2881 struct i40e_vsi *vsi = NULL;
2882 i40e_status ret = 0;
2885 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
2886 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2887 ret = I40E_ERR_PARAM;
2891 vsi = pf->vsi[vf->lan_vsi_idx];
2893 /* Lock once, because all function inside for loop accesses VSI's
2894 * MAC filter list which needs to be protected using same lock.
2896 spin_lock_bh(&vsi->mac_filter_hash_lock);
2898 ret = i40e_check_vf_permission(vf, al);
2900 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2904 /* add new addresses to the list */
2905 for (i = 0; i < al->num_elements; i++) {
2906 struct i40e_mac_filter *f;
2908 f = i40e_find_mac(vsi, al->list[i].addr);
2910 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2913 dev_err(&pf->pdev->dev,
2914 "Unable to add MAC filter %pM for VF %d\n",
2915 al->list[i].addr, vf->vf_id);
2916 ret = I40E_ERR_PARAM;
2917 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2920 if (is_valid_ether_addr(al->list[i].addr) &&
2921 is_zero_ether_addr(vf->default_lan_addr.addr))
2922 ether_addr_copy(vf->default_lan_addr.addr,
2926 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2928 /* program the updated filter list */
2929 ret = i40e_sync_vsi_filters(vsi);
2931 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2935 /* send the response to the VF */
2936 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2941 * i40e_vc_del_mac_addr_msg
2942 * @vf: pointer to the VF info
2943 * @msg: pointer to the msg buffer
2945 * remove guest mac address filter
2947 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2949 struct virtchnl_ether_addr_list *al =
2950 (struct virtchnl_ether_addr_list *)msg;
2951 bool was_unimac_deleted = false;
2952 struct i40e_pf *pf = vf->pf;
2953 struct i40e_vsi *vsi = NULL;
2954 i40e_status ret = 0;
2957 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
2958 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2959 ret = I40E_ERR_PARAM;
2963 for (i = 0; i < al->num_elements; i++) {
2964 if (is_broadcast_ether_addr(al->list[i].addr) ||
2965 is_zero_ether_addr(al->list[i].addr)) {
2966 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2967 al->list[i].addr, vf->vf_id);
2968 ret = I40E_ERR_INVALID_MAC_ADDR;
2971 if (ether_addr_equal(al->list[i].addr, vf->default_lan_addr.addr))
2972 was_unimac_deleted = true;
2974 vsi = pf->vsi[vf->lan_vsi_idx];
2976 spin_lock_bh(&vsi->mac_filter_hash_lock);
2977 /* delete addresses from the list */
2978 for (i = 0; i < al->num_elements; i++)
2979 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2980 ret = I40E_ERR_INVALID_MAC_ADDR;
2981 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2985 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2987 /* program the updated filter list */
2988 ret = i40e_sync_vsi_filters(vsi);
2990 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2993 if (vf->trusted && was_unimac_deleted) {
2994 struct i40e_mac_filter *f;
2995 struct hlist_node *h;
2999 /* set last unicast mac address as default */
3000 spin_lock_bh(&vsi->mac_filter_hash_lock);
3001 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3002 if (is_valid_ether_addr(f->macaddr))
3003 macaddr = f->macaddr;
3006 ether_addr_copy(vf->default_lan_addr.addr, macaddr);
3007 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3010 /* send the response to the VF */
3011 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
3015 * i40e_vc_add_vlan_msg
3016 * @vf: pointer to the VF info
3017 * @msg: pointer to the msg buffer
3019 * program guest vlan id
3021 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3023 struct virtchnl_vlan_filter_list *vfl =
3024 (struct virtchnl_vlan_filter_list *)msg;
3025 struct i40e_pf *pf = vf->pf;
3026 struct i40e_vsi *vsi = NULL;
3027 i40e_status aq_ret = 0;
3030 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3031 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3032 dev_err(&pf->pdev->dev,
3033 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3036 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3037 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3038 aq_ret = I40E_ERR_PARAM;
3042 for (i = 0; i < vfl->num_elements; i++) {
3043 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3044 aq_ret = I40E_ERR_PARAM;
3045 dev_err(&pf->pdev->dev,
3046 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3050 vsi = pf->vsi[vf->lan_vsi_idx];
3051 if (vsi->info.pvid) {
3052 aq_ret = I40E_ERR_PARAM;
3056 i40e_vlan_stripping_enable(vsi);
3057 for (i = 0; i < vfl->num_elements; i++) {
3058 /* add new VLAN filter */
3059 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
3063 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3064 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3068 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3069 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3075 dev_err(&pf->pdev->dev,
3076 "Unable to add VLAN filter %d for VF %d, error %d\n",
3077 vfl->vlan_id[i], vf->vf_id, ret);
3081 /* send the response to the VF */
3082 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
3086 * i40e_vc_remove_vlan_msg
3087 * @vf: pointer to the VF info
3088 * @msg: pointer to the msg buffer
3090 * remove programmed guest vlan id
3092 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3094 struct virtchnl_vlan_filter_list *vfl =
3095 (struct virtchnl_vlan_filter_list *)msg;
3096 struct i40e_pf *pf = vf->pf;
3097 struct i40e_vsi *vsi = NULL;
3098 i40e_status aq_ret = 0;
3101 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3102 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3103 aq_ret = I40E_ERR_PARAM;
3107 for (i = 0; i < vfl->num_elements; i++) {
3108 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3109 aq_ret = I40E_ERR_PARAM;
3114 vsi = pf->vsi[vf->lan_vsi_idx];
3115 if (vsi->info.pvid) {
3116 if (vfl->num_elements > 1 || vfl->vlan_id[0])
3117 aq_ret = I40E_ERR_PARAM;
3121 for (i = 0; i < vfl->num_elements; i++) {
3122 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
3125 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3126 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3130 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3131 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3138 /* send the response to the VF */
3139 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
3144 * @vf: pointer to the VF info
3145 * @msg: pointer to the msg buffer
3146 * @msglen: msg length
3148 * called from the VF for the iwarp msgs
3150 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3152 struct i40e_pf *pf = vf->pf;
3153 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3154 i40e_status aq_ret = 0;
3156 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3157 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
3158 aq_ret = I40E_ERR_PARAM;
3162 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
3166 /* send the response to the VF */
3167 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
3172 * i40e_vc_iwarp_qvmap_msg
3173 * @vf: pointer to the VF info
3174 * @msg: pointer to the msg buffer
3175 * @config: config qvmap or release it
3177 * called from the VF for the iwarp msgs
3179 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3181 struct virtchnl_iwarp_qvlist_info *qvlist_info =
3182 (struct virtchnl_iwarp_qvlist_info *)msg;
3183 i40e_status aq_ret = 0;
3185 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3186 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
3187 aq_ret = I40E_ERR_PARAM;
3192 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
3193 aq_ret = I40E_ERR_PARAM;
3195 i40e_release_iwarp_qvlist(vf);
3199 /* send the response to the VF */
3200 return i40e_vc_send_resp_to_vf(vf,
3201 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
3202 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
3207 * i40e_vc_config_rss_key
3208 * @vf: pointer to the VF info
3209 * @msg: pointer to the msg buffer
3211 * Configure the VF's RSS key
3213 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
3215 struct virtchnl_rss_key *vrk =
3216 (struct virtchnl_rss_key *)msg;
3217 struct i40e_pf *pf = vf->pf;
3218 struct i40e_vsi *vsi = NULL;
3219 i40e_status aq_ret = 0;
3221 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3222 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
3223 vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
3224 aq_ret = I40E_ERR_PARAM;
3228 vsi = pf->vsi[vf->lan_vsi_idx];
3229 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3231 /* send the response to the VF */
3232 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3237 * i40e_vc_config_rss_lut
3238 * @vf: pointer to the VF info
3239 * @msg: pointer to the msg buffer
3241 * Configure the VF's RSS LUT
3243 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3245 struct virtchnl_rss_lut *vrl =
3246 (struct virtchnl_rss_lut *)msg;
3247 struct i40e_pf *pf = vf->pf;
3248 struct i40e_vsi *vsi = NULL;
3249 i40e_status aq_ret = 0;
3252 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3253 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3254 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
3255 aq_ret = I40E_ERR_PARAM;
3259 for (i = 0; i < vrl->lut_entries; i++)
3260 if (vrl->lut[i] >= vf->num_queue_pairs) {
3261 aq_ret = I40E_ERR_PARAM;
3265 vsi = pf->vsi[vf->lan_vsi_idx];
3266 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3267 /* send the response to the VF */
3269 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3274 * i40e_vc_get_rss_hena
3275 * @vf: pointer to the VF info
3276 * @msg: pointer to the msg buffer
3278 * Return the RSS HENA bits allowed by the hardware
3280 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3282 struct virtchnl_rss_hena *vrh = NULL;
3283 struct i40e_pf *pf = vf->pf;
3284 i40e_status aq_ret = 0;
3287 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3288 aq_ret = I40E_ERR_PARAM;
3291 len = sizeof(struct virtchnl_rss_hena);
3293 vrh = kzalloc(len, GFP_KERNEL);
3295 aq_ret = I40E_ERR_NO_MEMORY;
3299 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3301 /* send the response back to the VF */
3302 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3303 aq_ret, (u8 *)vrh, len);
3309 * i40e_vc_set_rss_hena
3310 * @vf: pointer to the VF info
3311 * @msg: pointer to the msg buffer
3313 * Set the RSS HENA bits for the VF
3315 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3317 struct virtchnl_rss_hena *vrh =
3318 (struct virtchnl_rss_hena *)msg;
3319 struct i40e_pf *pf = vf->pf;
3320 struct i40e_hw *hw = &pf->hw;
3321 i40e_status aq_ret = 0;
3323 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3324 aq_ret = I40E_ERR_PARAM;
3327 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3328 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3329 (u32)(vrh->hena >> 32));
3331 /* send the response to the VF */
3333 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3337 * i40e_vc_enable_vlan_stripping
3338 * @vf: pointer to the VF info
3339 * @msg: pointer to the msg buffer
3341 * Enable vlan header stripping for the VF
3343 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3345 i40e_status aq_ret = 0;
3346 struct i40e_vsi *vsi;
3348 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3349 aq_ret = I40E_ERR_PARAM;
3353 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3354 i40e_vlan_stripping_enable(vsi);
3356 /* send the response to the VF */
3358 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3363 * i40e_vc_disable_vlan_stripping
3364 * @vf: pointer to the VF info
3365 * @msg: pointer to the msg buffer
3367 * Disable vlan header stripping for the VF
3369 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3371 i40e_status aq_ret = 0;
3372 struct i40e_vsi *vsi;
3374 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3375 aq_ret = I40E_ERR_PARAM;
3379 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3380 i40e_vlan_stripping_disable(vsi);
3382 /* send the response to the VF */
3384 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3389 * i40e_validate_cloud_filter
3390 * @vf: pointer to VF structure
3391 * @tc_filter: pointer to filter requested
3393 * This function validates cloud filter programmed as TC filter for ADq
3395 static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3396 struct virtchnl_filter *tc_filter)
3398 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3399 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3400 struct i40e_pf *pf = vf->pf;
3401 struct i40e_vsi *vsi = NULL;
3402 struct i40e_mac_filter *f;
3403 struct hlist_node *h;
3407 if (!tc_filter->action) {
3408 dev_info(&pf->pdev->dev,
3409 "VF %d: Currently ADq doesn't support Drop Action\n",
3414 /* action_meta is TC number here to which the filter is applied */
3415 if (!tc_filter->action_meta ||
3416 tc_filter->action_meta > I40E_MAX_VF_VSI) {
3417 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3418 vf->vf_id, tc_filter->action_meta);
3422 /* Check filter if it's programmed for advanced mode or basic mode.
3423 * There are two ADq modes (for VF only),
3424 * 1. Basic mode: intended to allow as many filter options as possible
3425 * to be added to a VF in Non-trusted mode. Main goal is
3426 * to add filters to its own MAC and VLAN id.
3427 * 2. Advanced mode: is for allowing filters to be applied other than
3428 * its own MAC or VLAN. This mode requires the VF to be
3431 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3432 vsi = pf->vsi[vf->lan_vsi_idx];
3433 f = i40e_find_mac(vsi, data.dst_mac);
3436 dev_info(&pf->pdev->dev,
3437 "Destination MAC %pM doesn't belong to VF %d\n",
3438 data.dst_mac, vf->vf_id);
3443 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3445 if (f->vlan == ntohs(data.vlan_id)) {
3451 dev_info(&pf->pdev->dev,
3452 "VF %d doesn't have any VLAN id %u\n",
3453 vf->vf_id, ntohs(data.vlan_id));
3458 /* Check if VF is trusted */
3459 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3460 dev_err(&pf->pdev->dev,
3461 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3463 return I40E_ERR_CONFIG;
3467 if (mask.dst_mac[0] & data.dst_mac[0]) {
3468 if (is_broadcast_ether_addr(data.dst_mac) ||
3469 is_zero_ether_addr(data.dst_mac)) {
3470 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3471 vf->vf_id, data.dst_mac);
3476 if (mask.src_mac[0] & data.src_mac[0]) {
3477 if (is_broadcast_ether_addr(data.src_mac) ||
3478 is_zero_ether_addr(data.src_mac)) {
3479 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3480 vf->vf_id, data.src_mac);
3485 if (mask.dst_port & data.dst_port) {
3486 if (!data.dst_port) {
3487 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3493 if (mask.src_port & data.src_port) {
3494 if (!data.src_port) {
3495 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3501 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3502 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3503 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3508 if (mask.vlan_id & data.vlan_id) {
3509 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3510 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3516 return I40E_SUCCESS;
3518 return I40E_ERR_CONFIG;
3522 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3523 * @vf: pointer to the VF info
3524 * @seid: seid of the vsi it is searching for
3526 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3528 struct i40e_pf *pf = vf->pf;
3529 struct i40e_vsi *vsi = NULL;
3532 for (i = 0; i < vf->num_tc ; i++) {
3533 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3534 if (vsi && vsi->seid == seid)
3541 * i40e_del_all_cloud_filters
3542 * @vf: pointer to the VF info
3544 * This function deletes all cloud filters
3546 static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3548 struct i40e_cloud_filter *cfilter = NULL;
3549 struct i40e_pf *pf = vf->pf;
3550 struct i40e_vsi *vsi = NULL;
3551 struct hlist_node *node;
3554 hlist_for_each_entry_safe(cfilter, node,
3555 &vf->cloud_filter_list, cloud_node) {
3556 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3559 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3560 vf->vf_id, cfilter->seid);
3564 if (cfilter->dst_port)
3565 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3568 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3570 dev_err(&pf->pdev->dev,
3571 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3572 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3573 i40e_aq_str(&pf->hw,
3574 pf->hw.aq.asq_last_status));
3576 hlist_del(&cfilter->cloud_node);
3578 vf->num_cloud_filters--;
3583 * i40e_vc_del_cloud_filter
3584 * @vf: pointer to the VF info
3585 * @msg: pointer to the msg buffer
3587 * This function deletes a cloud filter programmed as TC filter for ADq
3589 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3591 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3592 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3593 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3594 struct i40e_cloud_filter cfilter, *cf = NULL;
3595 struct i40e_pf *pf = vf->pf;
3596 struct i40e_vsi *vsi = NULL;
3597 struct hlist_node *node;
3598 i40e_status aq_ret = 0;
3601 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3602 aq_ret = I40E_ERR_PARAM;
3606 if (!vf->adq_enabled) {
3607 dev_info(&pf->pdev->dev,
3608 "VF %d: ADq not enabled, can't apply cloud filter\n",
3610 aq_ret = I40E_ERR_PARAM;
3614 if (i40e_validate_cloud_filter(vf, vcf)) {
3615 dev_info(&pf->pdev->dev,
3616 "VF %d: Invalid input, can't apply cloud filter\n",
3618 aq_ret = I40E_ERR_PARAM;
3622 memset(&cfilter, 0, sizeof(cfilter));
3623 /* parse destination mac address */
3624 for (i = 0; i < ETH_ALEN; i++)
3625 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3627 /* parse source mac address */
3628 for (i = 0; i < ETH_ALEN; i++)
3629 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3631 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3632 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3633 cfilter.src_port = mask.src_port & tcf.src_port;
3635 switch (vcf->flow_type) {
3636 case VIRTCHNL_TCP_V4_FLOW:
3637 cfilter.n_proto = ETH_P_IP;
3638 if (mask.dst_ip[0] & tcf.dst_ip[0])
3639 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3640 ARRAY_SIZE(tcf.dst_ip));
3641 else if (mask.src_ip[0] & tcf.dst_ip[0])
3642 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3643 ARRAY_SIZE(tcf.dst_ip));
3645 case VIRTCHNL_TCP_V6_FLOW:
3646 cfilter.n_proto = ETH_P_IPV6;
3647 if (mask.dst_ip[3] & tcf.dst_ip[3])
3648 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3649 sizeof(cfilter.ip.v6.dst_ip6));
3650 if (mask.src_ip[3] & tcf.src_ip[3])
3651 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3652 sizeof(cfilter.ip.v6.src_ip6));
3655 /* TC filter can be configured based on different combinations
3656 * and in this case IP is not a part of filter config
3658 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3662 /* get the vsi to which the tc belongs to */
3663 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3664 cfilter.seid = vsi->seid;
3665 cfilter.flags = vcf->field_flags;
3667 /* Deleting TC filter */
3669 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3671 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3673 dev_err(&pf->pdev->dev,
3674 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3675 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3676 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3680 hlist_for_each_entry_safe(cf, node,
3681 &vf->cloud_filter_list, cloud_node) {
3682 if (cf->seid != cfilter.seid)
3685 if (cfilter.dst_port != cf->dst_port)
3687 if (mask.dst_mac[0])
3688 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3690 /* for ipv4 data to be valid, only first byte of mask is set */
3691 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3692 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3693 ARRAY_SIZE(tcf.dst_ip)))
3695 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3696 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3697 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3698 sizeof(cfilter.ip.v6.src_ip6)))
3701 if (cfilter.vlan_id != cf->vlan_id)
3704 hlist_del(&cf->cloud_node);
3706 vf->num_cloud_filters--;
3710 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3715 * i40e_vc_add_cloud_filter
3716 * @vf: pointer to the VF info
3717 * @msg: pointer to the msg buffer
3719 * This function adds a cloud filter programmed as TC filter for ADq
3721 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3723 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3724 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3725 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3726 struct i40e_cloud_filter *cfilter = NULL;
3727 struct i40e_pf *pf = vf->pf;
3728 struct i40e_vsi *vsi = NULL;
3729 i40e_status aq_ret = 0;
3732 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3733 aq_ret = I40E_ERR_PARAM;
3737 if (!vf->adq_enabled) {
3738 dev_info(&pf->pdev->dev,
3739 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3741 aq_ret = I40E_ERR_PARAM;
3745 if (i40e_validate_cloud_filter(vf, vcf)) {
3746 dev_info(&pf->pdev->dev,
3747 "VF %d: Invalid input/s, can't apply cloud filter\n",
3749 aq_ret = I40E_ERR_PARAM;
3753 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3757 /* parse destination mac address */
3758 for (i = 0; i < ETH_ALEN; i++)
3759 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3761 /* parse source mac address */
3762 for (i = 0; i < ETH_ALEN; i++)
3763 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3765 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3766 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3767 cfilter->src_port = mask.src_port & tcf.src_port;
3769 switch (vcf->flow_type) {
3770 case VIRTCHNL_TCP_V4_FLOW:
3771 cfilter->n_proto = ETH_P_IP;
3772 if (mask.dst_ip[0] & tcf.dst_ip[0])
3773 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3774 ARRAY_SIZE(tcf.dst_ip));
3775 else if (mask.src_ip[0] & tcf.dst_ip[0])
3776 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3777 ARRAY_SIZE(tcf.dst_ip));
3779 case VIRTCHNL_TCP_V6_FLOW:
3780 cfilter->n_proto = ETH_P_IPV6;
3781 if (mask.dst_ip[3] & tcf.dst_ip[3])
3782 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3783 sizeof(cfilter->ip.v6.dst_ip6));
3784 if (mask.src_ip[3] & tcf.src_ip[3])
3785 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3786 sizeof(cfilter->ip.v6.src_ip6));
3789 /* TC filter can be configured based on different combinations
3790 * and in this case IP is not a part of filter config
3792 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3796 /* get the VSI to which the TC belongs to */
3797 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3798 cfilter->seid = vsi->seid;
3799 cfilter->flags = vcf->field_flags;
3801 /* Adding cloud filter programmed as TC filter */
3803 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3805 ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3807 dev_err(&pf->pdev->dev,
3808 "VF %d: Failed to add cloud filter, err %s aq_err %s\n",
3809 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3810 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3814 INIT_HLIST_NODE(&cfilter->cloud_node);
3815 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3816 /* release the pointer passing it to the collection */
3818 vf->num_cloud_filters++;
3822 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3827 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
3828 * @vf: pointer to the VF info
3829 * @msg: pointer to the msg buffer
3831 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
3833 struct virtchnl_tc_info *tci =
3834 (struct virtchnl_tc_info *)msg;
3835 struct i40e_pf *pf = vf->pf;
3836 struct i40e_link_status *ls = &pf->hw.phy.link_info;
3837 int i, adq_request_qps = 0;
3838 i40e_status aq_ret = 0;
3841 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3842 aq_ret = I40E_ERR_PARAM;
3846 /* ADq cannot be applied if spoof check is ON */
3848 dev_err(&pf->pdev->dev,
3849 "Spoof check is ON, turn it OFF to enable ADq\n");
3850 aq_ret = I40E_ERR_PARAM;
3854 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
3855 dev_err(&pf->pdev->dev,
3856 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
3858 aq_ret = I40E_ERR_PARAM;
3862 /* max number of traffic classes for VF currently capped at 4 */
3863 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
3864 dev_err(&pf->pdev->dev,
3865 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
3866 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
3867 aq_ret = I40E_ERR_PARAM;
3871 /* validate queues for each TC */
3872 for (i = 0; i < tci->num_tc; i++)
3873 if (!tci->list[i].count ||
3874 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
3875 dev_err(&pf->pdev->dev,
3876 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
3877 vf->vf_id, i, tci->list[i].count,
3878 I40E_DEFAULT_QUEUES_PER_VF);
3879 aq_ret = I40E_ERR_PARAM;
3883 /* need Max VF queues but already have default number of queues */
3884 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
3886 if (pf->queues_left < adq_request_qps) {
3887 dev_err(&pf->pdev->dev,
3888 "No queues left to allocate to VF %d\n",
3890 aq_ret = I40E_ERR_PARAM;
3893 /* we need to allocate max VF queues to enable ADq so as to
3894 * make sure ADq enabled VF always gets back queues when it
3895 * goes through a reset.
3897 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
3900 /* get link speed in MB to validate rate limit */
3901 speed = i40e_vc_link_speed2mbps(ls->link_speed);
3902 if (speed == SPEED_UNKNOWN) {
3903 dev_err(&pf->pdev->dev,
3904 "Cannot detect link speed\n");
3905 aq_ret = I40E_ERR_PARAM;
3909 /* parse data from the queue channel info */
3910 vf->num_tc = tci->num_tc;
3911 for (i = 0; i < vf->num_tc; i++) {
3912 if (tci->list[i].max_tx_rate) {
3913 if (tci->list[i].max_tx_rate > speed) {
3914 dev_err(&pf->pdev->dev,
3915 "Invalid max tx rate %llu specified for VF %d.",
3916 tci->list[i].max_tx_rate,
3918 aq_ret = I40E_ERR_PARAM;
3921 vf->ch[i].max_tx_rate =
3922 tci->list[i].max_tx_rate;
3925 vf->ch[i].num_qps = tci->list[i].count;
3928 /* set this flag only after making sure all inputs are sane */
3929 vf->adq_enabled = true;
3931 /* reset the VF in order to allocate resources */
3932 i40e_vc_reset_vf(vf, true);
3934 return I40E_SUCCESS;
3936 /* send the response to the VF */
3938 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
3943 * i40e_vc_del_qch_msg
3944 * @vf: pointer to the VF info
3945 * @msg: pointer to the msg buffer
3947 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
3949 struct i40e_pf *pf = vf->pf;
3950 i40e_status aq_ret = 0;
3952 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3953 aq_ret = I40E_ERR_PARAM;
3957 if (vf->adq_enabled) {
3958 i40e_del_all_cloud_filters(vf);
3960 vf->adq_enabled = false;
3962 dev_info(&pf->pdev->dev,
3963 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
3966 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
3968 aq_ret = I40E_ERR_PARAM;
3971 /* reset the VF in order to allocate resources */
3972 i40e_vc_reset_vf(vf, true);
3974 return I40E_SUCCESS;
3977 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
3982 * i40e_vc_process_vf_msg
3983 * @pf: pointer to the PF structure
3984 * @vf_id: source VF id
3985 * @v_opcode: operation code
3986 * @v_retval: unused return value code
3987 * @msg: pointer to the msg buffer
3988 * @msglen: msg length
3990 * called from the common aeq/arq handler to
3991 * process request from VF
3993 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
3994 u32 __always_unused v_retval, u8 *msg, u16 msglen)
3996 struct i40e_hw *hw = &pf->hw;
3997 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4001 pf->vf_aq_requests++;
4002 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4004 vf = &(pf->vf[local_vf_id]);
4006 /* Check if VF is disabled. */
4007 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4008 return I40E_ERR_PARAM;
4010 /* perform basic checks on the msg */
4011 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
4014 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
4015 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
4016 local_vf_id, v_opcode, msglen);
4018 case VIRTCHNL_STATUS_ERR_PARAM:
4026 case VIRTCHNL_OP_VERSION:
4027 ret = i40e_vc_get_version_msg(vf, msg);
4029 case VIRTCHNL_OP_GET_VF_RESOURCES:
4030 ret = i40e_vc_get_vf_resources_msg(vf, msg);
4031 i40e_vc_notify_vf_link_state(vf);
4033 case VIRTCHNL_OP_RESET_VF:
4034 i40e_vc_reset_vf(vf, false);
4037 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4038 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4040 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4041 ret = i40e_vc_config_queues_msg(vf, msg);
4043 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4044 ret = i40e_vc_config_irq_map_msg(vf, msg);
4046 case VIRTCHNL_OP_ENABLE_QUEUES:
4047 ret = i40e_vc_enable_queues_msg(vf, msg);
4048 i40e_vc_notify_vf_link_state(vf);
4050 case VIRTCHNL_OP_DISABLE_QUEUES:
4051 ret = i40e_vc_disable_queues_msg(vf, msg);
4053 case VIRTCHNL_OP_ADD_ETH_ADDR:
4054 ret = i40e_vc_add_mac_addr_msg(vf, msg);
4056 case VIRTCHNL_OP_DEL_ETH_ADDR:
4057 ret = i40e_vc_del_mac_addr_msg(vf, msg);
4059 case VIRTCHNL_OP_ADD_VLAN:
4060 ret = i40e_vc_add_vlan_msg(vf, msg);
4062 case VIRTCHNL_OP_DEL_VLAN:
4063 ret = i40e_vc_remove_vlan_msg(vf, msg);
4065 case VIRTCHNL_OP_GET_STATS:
4066 ret = i40e_vc_get_stats_msg(vf, msg);
4068 case VIRTCHNL_OP_IWARP:
4069 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
4071 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
4072 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true);
4074 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
4075 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false);
4077 case VIRTCHNL_OP_CONFIG_RSS_KEY:
4078 ret = i40e_vc_config_rss_key(vf, msg);
4080 case VIRTCHNL_OP_CONFIG_RSS_LUT:
4081 ret = i40e_vc_config_rss_lut(vf, msg);
4083 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4084 ret = i40e_vc_get_rss_hena(vf, msg);
4086 case VIRTCHNL_OP_SET_RSS_HENA:
4087 ret = i40e_vc_set_rss_hena(vf, msg);
4089 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4090 ret = i40e_vc_enable_vlan_stripping(vf, msg);
4092 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4093 ret = i40e_vc_disable_vlan_stripping(vf, msg);
4095 case VIRTCHNL_OP_REQUEST_QUEUES:
4096 ret = i40e_vc_request_queues_msg(vf, msg);
4098 case VIRTCHNL_OP_ENABLE_CHANNELS:
4099 ret = i40e_vc_add_qch_msg(vf, msg);
4101 case VIRTCHNL_OP_DISABLE_CHANNELS:
4102 ret = i40e_vc_del_qch_msg(vf, msg);
4104 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4105 ret = i40e_vc_add_cloud_filter(vf, msg);
4107 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4108 ret = i40e_vc_del_cloud_filter(vf, msg);
4110 case VIRTCHNL_OP_UNKNOWN:
4112 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
4113 v_opcode, local_vf_id);
4114 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
4115 I40E_ERR_NOT_IMPLEMENTED);
4123 * i40e_vc_process_vflr_event
4124 * @pf: pointer to the PF structure
4126 * called from the vlfr irq handler to
4127 * free up VF resources and state variables
4129 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4131 struct i40e_hw *hw = &pf->hw;
4132 u32 reg, reg_idx, bit_idx;
4136 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4139 /* Re-enable the VFLR interrupt cause here, before looking for which
4140 * VF got reset. Otherwise, if another VF gets a reset while the
4141 * first one is being processed, that interrupt will be lost, and
4142 * that VF will be stuck in reset forever.
4144 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4145 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4146 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
4149 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
4150 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
4151 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
4152 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
4153 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
4154 vf = &pf->vf[vf_id];
4155 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
4156 if (reg & BIT(bit_idx))
4157 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
4158 i40e_reset_vf(vf, true);
4166 * @pf: the physical function
4167 * @vf_id: VF identifier
4169 * Check that the VF is enabled and the VSI exists.
4171 * Returns 0 on success, negative on failure
4173 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4175 struct i40e_vsi *vsi;
4179 if (vf_id >= pf->num_alloc_vfs) {
4180 dev_err(&pf->pdev->dev,
4181 "Invalid VF Identifier %d\n", vf_id);
4185 vf = &pf->vf[vf_id];
4186 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
4194 * i40e_ndo_set_vf_mac
4195 * @netdev: network interface device structure
4196 * @vf_id: VF identifier
4199 * program VF mac address
4201 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4203 struct i40e_netdev_priv *np = netdev_priv(netdev);
4204 struct i40e_vsi *vsi = np->vsi;
4205 struct i40e_pf *pf = vsi->back;
4206 struct i40e_mac_filter *f;
4209 struct hlist_node *h;
4213 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4214 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4218 /* validate the request */
4219 ret = i40e_validate_vf(pf, vf_id);
4223 vf = &pf->vf[vf_id];
4225 /* When the VF is resetting wait until it is done.
4226 * It can take up to 200 milliseconds,
4227 * but wait for up to 300 milliseconds to be safe.
4228 * Acquire the VSI pointer only after the VF has been
4229 * properly initialized.
4231 for (i = 0; i < 15; i++) {
4232 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
4236 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4237 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4242 vsi = pf->vsi[vf->lan_vsi_idx];
4244 if (is_multicast_ether_addr(mac)) {
4245 dev_err(&pf->pdev->dev,
4246 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4251 /* Lock once because below invoked function add/del_filter requires
4252 * mac_filter_hash_lock to be held
4254 spin_lock_bh(&vsi->mac_filter_hash_lock);
4256 /* delete the temporary mac address */
4257 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4258 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4260 /* Delete all the filters for this VSI - we're going to kill it
4263 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4264 __i40e_del_filter(vsi, f);
4266 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4268 /* program mac filter */
4269 if (i40e_sync_vsi_filters(vsi)) {
4270 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4274 ether_addr_copy(vf->default_lan_addr.addr, mac);
4276 if (is_zero_ether_addr(mac)) {
4277 vf->pf_set_mac = false;
4278 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4280 vf->pf_set_mac = true;
4281 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4285 /* Force the VF interface down so it has to bring up with new MAC
4288 i40e_vc_reset_vf(vf, true);
4289 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4292 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4297 * i40e_ndo_set_vf_port_vlan
4298 * @netdev: network interface device structure
4299 * @vf_id: VF identifier
4300 * @vlan_id: mac address
4301 * @qos: priority setting
4302 * @vlan_proto: vlan protocol
4304 * program VF vlan id and/or qos
4306 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4307 u16 vlan_id, u8 qos, __be16 vlan_proto)
4309 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4310 struct i40e_netdev_priv *np = netdev_priv(netdev);
4311 bool allmulti = false, alluni = false;
4312 struct i40e_pf *pf = np->vsi->back;
4313 struct i40e_vsi *vsi;
4317 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4318 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4322 /* validate the request */
4323 ret = i40e_validate_vf(pf, vf_id);
4327 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4328 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4333 if (vlan_proto != htons(ETH_P_8021Q)) {
4334 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4335 ret = -EPROTONOSUPPORT;
4339 vf = &pf->vf[vf_id];
4340 vsi = pf->vsi[vf->lan_vsi_idx];
4341 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4342 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4348 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4349 /* duplicate request, so just return success */
4352 i40e_vc_reset_vf(vf, true);
4353 /* During reset the VF got a new VSI, so refresh a pointer. */
4354 vsi = pf->vsi[vf->lan_vsi_idx];
4355 /* Locked once because multiple functions below iterate list */
4356 spin_lock_bh(&vsi->mac_filter_hash_lock);
4358 /* Check for condition where there was already a port VLAN ID
4359 * filter set and now it is being deleted by setting it to zero.
4360 * Additionally check for the condition where there was a port
4361 * VLAN but now there is a new and different port VLAN being set.
4362 * Before deleting all the old VLAN filters we must add new ones
4363 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4364 * MAC addresses deleted.
4366 if ((!(vlan_id || qos) ||
4367 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4369 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4371 dev_info(&vsi->back->pdev->dev,
4372 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4373 vsi->back->hw.aq.asq_last_status);
4374 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4379 if (vsi->info.pvid) {
4380 /* remove all filters on the old VLAN */
4381 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4385 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4387 /* disable promisc modes in case they were enabled */
4388 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4391 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4396 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4398 i40e_vsi_remove_pvid(vsi);
4399 spin_lock_bh(&vsi->mac_filter_hash_lock);
4402 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4403 vlan_id, qos, vf_id);
4405 /* add new VLAN filter for each MAC */
4406 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4408 dev_info(&vsi->back->pdev->dev,
4409 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4410 vsi->back->hw.aq.asq_last_status);
4411 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4415 /* remove the previously added non-VLAN MAC filters */
4416 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4419 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4421 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4424 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4427 /* Schedule the worker thread to take care of applying changes */
4428 i40e_service_event_schedule(vsi->back);
4431 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4435 /* The Port VLAN needs to be saved across resets the same as the
4436 * default LAN MAC address.
4438 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4440 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4442 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4449 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4454 * i40e_ndo_set_vf_bw
4455 * @netdev: network interface device structure
4456 * @vf_id: VF identifier
4457 * @min_tx_rate: Minimum Tx rate
4458 * @max_tx_rate: Maximum Tx rate
4460 * configure VF Tx rate
4462 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4465 struct i40e_netdev_priv *np = netdev_priv(netdev);
4466 struct i40e_pf *pf = np->vsi->back;
4467 struct i40e_vsi *vsi;
4471 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4472 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4476 /* validate the request */
4477 ret = i40e_validate_vf(pf, vf_id);
4482 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4483 min_tx_rate, vf_id);
4488 vf = &pf->vf[vf_id];
4489 vsi = pf->vsi[vf->lan_vsi_idx];
4490 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4491 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4497 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4501 vf->tx_rate = max_tx_rate;
4503 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4508 * i40e_ndo_get_vf_config
4509 * @netdev: network interface device structure
4510 * @vf_id: VF identifier
4511 * @ivi: VF configuration structure
4513 * return VF configuration
4515 int i40e_ndo_get_vf_config(struct net_device *netdev,
4516 int vf_id, struct ifla_vf_info *ivi)
4518 struct i40e_netdev_priv *np = netdev_priv(netdev);
4519 struct i40e_vsi *vsi = np->vsi;
4520 struct i40e_pf *pf = vsi->back;
4524 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4525 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4529 /* validate the request */
4530 ret = i40e_validate_vf(pf, vf_id);
4534 vf = &pf->vf[vf_id];
4535 /* first vsi is always the LAN vsi */
4536 vsi = pf->vsi[vf->lan_vsi_idx];
4544 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4546 ivi->max_tx_rate = vf->tx_rate;
4547 ivi->min_tx_rate = 0;
4548 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
4549 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
4550 I40E_VLAN_PRIORITY_SHIFT;
4551 if (vf->link_forced == false)
4552 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4553 else if (vf->link_up == true)
4554 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4556 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4557 ivi->spoofchk = vf->spoofchk;
4558 ivi->trusted = vf->trusted;
4562 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4567 * i40e_ndo_set_vf_link_state
4568 * @netdev: network interface device structure
4569 * @vf_id: VF identifier
4570 * @link: required link state
4572 * Set the link state of a specified VF, regardless of physical link state
4574 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4576 struct i40e_netdev_priv *np = netdev_priv(netdev);
4577 struct i40e_pf *pf = np->vsi->back;
4578 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4579 struct virtchnl_pf_event pfe;
4580 struct i40e_hw *hw = &pf->hw;
4585 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4586 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4590 /* validate the request */
4591 if (vf_id >= pf->num_alloc_vfs) {
4592 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4597 vf = &pf->vf[vf_id];
4598 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4600 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4601 pfe.severity = PF_EVENT_SEVERITY_INFO;
4604 case IFLA_VF_LINK_STATE_AUTO:
4605 vf->link_forced = false;
4606 i40e_set_vf_link_state(vf, &pfe, ls);
4608 case IFLA_VF_LINK_STATE_ENABLE:
4609 vf->link_forced = true;
4611 i40e_set_vf_link_state(vf, &pfe, ls);
4613 case IFLA_VF_LINK_STATE_DISABLE:
4614 vf->link_forced = true;
4615 vf->link_up = false;
4616 i40e_set_vf_link_state(vf, &pfe, ls);
4622 /* Notify the VF of its new link state */
4623 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4624 0, (u8 *)&pfe, sizeof(pfe), NULL);
4627 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4632 * i40e_ndo_set_vf_spoofchk
4633 * @netdev: network interface device structure
4634 * @vf_id: VF identifier
4635 * @enable: flag to enable or disable feature
4637 * Enable or disable VF spoof checking
4639 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4641 struct i40e_netdev_priv *np = netdev_priv(netdev);
4642 struct i40e_vsi *vsi = np->vsi;
4643 struct i40e_pf *pf = vsi->back;
4644 struct i40e_vsi_context ctxt;
4645 struct i40e_hw *hw = &pf->hw;
4649 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4650 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4654 /* validate the request */
4655 if (vf_id >= pf->num_alloc_vfs) {
4656 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4661 vf = &(pf->vf[vf_id]);
4662 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4663 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4669 if (enable == vf->spoofchk)
4672 vf->spoofchk = enable;
4673 memset(&ctxt, 0, sizeof(ctxt));
4674 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4675 ctxt.pf_num = pf->hw.pf_id;
4676 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4678 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4679 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4680 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4682 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4687 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4692 * i40e_ndo_set_vf_trust
4693 * @netdev: network interface device structure of the pf
4694 * @vf_id: VF identifier
4695 * @setting: trust setting
4697 * Enable or disable VF trust setting
4699 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4701 struct i40e_netdev_priv *np = netdev_priv(netdev);
4702 struct i40e_pf *pf = np->vsi->back;
4706 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4707 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4711 /* validate the request */
4712 if (vf_id >= pf->num_alloc_vfs) {
4713 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4718 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4719 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4724 vf = &pf->vf[vf_id];
4726 if (setting == vf->trusted)
4729 vf->trusted = setting;
4730 i40e_vc_reset_vf(vf, true);
4731 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4732 vf_id, setting ? "" : "un");
4734 if (vf->adq_enabled) {
4736 dev_info(&pf->pdev->dev,
4737 "VF %u no longer Trusted, deleting all cloud filters\n",
4739 i40e_del_all_cloud_filters(vf);
4744 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4749 * i40e_get_vf_stats - populate some stats for the VF
4750 * @netdev: the netdev of the PF
4751 * @vf_id: the host OS identifier (0-127)
4752 * @vf_stats: pointer to the OS memory to be initialized
4754 int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4755 struct ifla_vf_stats *vf_stats)
4757 struct i40e_netdev_priv *np = netdev_priv(netdev);
4758 struct i40e_pf *pf = np->vsi->back;
4759 struct i40e_eth_stats *stats;
4760 struct i40e_vsi *vsi;
4763 /* validate the request */
4764 if (i40e_validate_vf(pf, vf_id))
4767 vf = &pf->vf[vf_id];
4768 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4769 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4773 vsi = pf->vsi[vf->lan_vsi_idx];
4777 i40e_update_eth_stats(vsi);
4778 stats = &vsi->eth_stats;
4780 memset(vf_stats, 0, sizeof(*vf_stats));
4782 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4783 stats->rx_multicast;
4784 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4785 stats->tx_multicast;
4786 vf_stats->rx_bytes = stats->rx_bytes;
4787 vf_stats->tx_bytes = stats->tx_bytes;
4788 vf_stats->broadcast = stats->rx_broadcast;
4789 vf_stats->multicast = stats->rx_multicast;
4790 vf_stats->rx_dropped = stats->rx_discards;
4791 vf_stats->tx_dropped = stats->tx_discards;