1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
29 /*********************notification routines***********************/
32 * i40e_vc_vf_broadcast
33 * @pf: pointer to the PF structure
34 * @opcode: operation code
35 * @retval: return value
36 * @msg: pointer to the msg buffer
39 * send a message to all VFs on a given PF
41 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum i40e_virtchnl_ops v_opcode,
43 i40e_status v_retval, u8 *msg,
46 struct i40e_hw *hw = &pf->hw;
47 struct i40e_vf *vf = pf->vf;
50 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
51 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
52 /* Not all vfs are enabled so skip the ones that are not */
53 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
57 /* Ignore return value on purpose - a given VF may fail, but
58 * we need to keep going and send to all of them
60 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
66 * i40e_vc_notify_vf_link_state
67 * @vf: pointer to the VF structure
69 * send a link status message to a single VF
71 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
73 struct i40e_virtchnl_pf_event pfe;
74 struct i40e_pf *pf = vf->pf;
75 struct i40e_hw *hw = &pf->hw;
76 struct i40e_link_status *ls = &pf->hw.phy.link_info;
77 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
79 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
80 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
81 if (vf->link_forced) {
82 pfe.event_data.link_event.link_status = vf->link_up;
83 pfe.event_data.link_event.link_speed =
84 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
86 pfe.event_data.link_event.link_status =
87 ls->link_info & I40E_AQ_LINK_UP;
88 pfe.event_data.link_event.link_speed = ls->link_speed;
90 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
91 0, (u8 *)&pfe, sizeof(pfe), NULL);
95 * i40e_vc_notify_link_state
96 * @pf: pointer to the PF structure
98 * send a link status message to all VFs on a given PF
100 void i40e_vc_notify_link_state(struct i40e_pf *pf)
104 for (i = 0; i < pf->num_alloc_vfs; i++)
105 i40e_vc_notify_vf_link_state(&pf->vf[i]);
109 * i40e_vc_notify_reset
110 * @pf: pointer to the PF structure
112 * indicate a pending reset to all VFs on a given PF
114 void i40e_vc_notify_reset(struct i40e_pf *pf)
116 struct i40e_virtchnl_pf_event pfe;
118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
120 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
121 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
125 * i40e_vc_notify_vf_reset
126 * @vf: pointer to the VF structure
128 * indicate a pending reset to the given VF
130 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
132 struct i40e_virtchnl_pf_event pfe;
135 /* validate the request */
136 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
139 /* verify if the VF is in either init or active before proceeding */
140 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
141 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
144 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
146 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
147 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
148 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
150 sizeof(struct i40e_virtchnl_pf_event), NULL);
152 /***********************misc routines*****************************/
156 * @pf: pointer to the PF info
157 * @vf: pointer to the VF info
159 * Disable the VF through a SW reset
161 static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
163 i40e_vc_notify_vf_reset(vf);
164 i40e_reset_vf(vf, false);
168 * i40e_vc_isvalid_vsi_id
169 * @vf: pointer to the VF info
170 * @vsi_id: VF relative VSI id
172 * check for the valid VSI id
174 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
176 struct i40e_pf *pf = vf->pf;
177 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
179 return (vsi && (vsi->vf_id == vf->vf_id));
183 * i40e_vc_isvalid_queue_id
184 * @vf: pointer to the VF info
186 * @qid: vsi relative queue id
188 * check for the valid queue id
190 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
193 struct i40e_pf *pf = vf->pf;
194 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
196 return (vsi && (qid < vsi->alloc_queue_pairs));
200 * i40e_vc_isvalid_vector_id
201 * @vf: pointer to the VF info
202 * @vector_id: VF relative vector id
204 * check for the valid vector id
206 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
208 struct i40e_pf *pf = vf->pf;
210 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
213 /***********************vf resource mgmt routines*****************/
216 * i40e_vc_get_pf_queue_id
217 * @vf: pointer to the VF info
218 * @vsi_id: id of VSI as provided by the FW
219 * @vsi_queue_id: vsi relative queue id
221 * return PF relative queue id
223 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
226 struct i40e_pf *pf = vf->pf;
227 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
228 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
233 if (le16_to_cpu(vsi->info.mapping_flags) &
234 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
236 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
238 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
245 * i40e_config_irq_link_list
246 * @vf: pointer to the VF info
247 * @vsi_id: id of VSI as given by the FW
248 * @vecmap: irq map info
250 * configure irq link list from the map
252 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
253 struct i40e_virtchnl_vector_map *vecmap)
255 unsigned long linklistmap = 0, tempmap;
256 struct i40e_pf *pf = vf->pf;
257 struct i40e_hw *hw = &pf->hw;
258 u16 vsi_queue_id, pf_queue_id;
259 enum i40e_queue_type qtype;
260 u16 next_q, vector_id;
264 vector_id = vecmap->vector_id;
267 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
269 reg_idx = I40E_VPINT_LNKLSTN(
270 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
273 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
274 /* Special case - No queues mapped on this vector */
275 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
278 tempmap = vecmap->rxq_map;
279 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
280 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
284 tempmap = vecmap->txq_map;
285 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
286 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
290 next_q = find_first_bit(&linklistmap,
292 I40E_VIRTCHNL_SUPPORTED_QTYPES));
293 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
294 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
295 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
296 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
298 wr32(hw, reg_idx, reg);
300 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
302 case I40E_QUEUE_TYPE_RX:
303 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
304 itr_idx = vecmap->rxitr_idx;
306 case I40E_QUEUE_TYPE_TX:
307 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
308 itr_idx = vecmap->txitr_idx;
314 next_q = find_next_bit(&linklistmap,
316 I40E_VIRTCHNL_SUPPORTED_QTYPES),
319 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
320 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
321 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
325 pf_queue_id = I40E_QUEUE_END_OF_LIST;
329 /* format for the RQCTL & TQCTL regs is same */
331 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
332 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
333 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
334 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
335 wr32(hw, reg_idx, reg);
338 /* if the vf is running in polling mode and using interrupt zero,
339 * need to disable auto-mask on enabling zero interrupt for VFs.
341 if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
343 reg = rd32(hw, I40E_GLINT_CTL);
344 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
345 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
346 wr32(hw, I40E_GLINT_CTL, reg);
355 * i40e_release_iwarp_qvlist
356 * @vf: pointer to the VF.
359 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
361 struct i40e_pf *pf = vf->pf;
362 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
366 if (!vf->qvlist_info)
369 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
370 for (i = 0; i < qvlist_info->num_vectors; i++) {
371 struct i40e_virtchnl_iwarp_qv_info *qv_info;
372 u32 next_q_index, next_q_type;
373 struct i40e_hw *hw = &pf->hw;
374 u32 v_idx, reg_idx, reg;
376 qv_info = &qvlist_info->qv_info[i];
379 v_idx = qv_info->v_idx;
380 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
381 /* Figure out the queue after CEQ and make that the
384 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
385 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
386 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
387 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
388 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
389 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
391 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
392 reg = (next_q_index &
393 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
395 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
397 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
400 kfree(vf->qvlist_info);
401 vf->qvlist_info = NULL;
405 * i40e_config_iwarp_qvlist
406 * @vf: pointer to the VF info
407 * @qvlist_info: queue and vector list
409 * Return 0 on success or < 0 on error
411 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
412 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info)
414 struct i40e_pf *pf = vf->pf;
415 struct i40e_hw *hw = &pf->hw;
416 struct i40e_virtchnl_iwarp_qv_info *qv_info;
417 u32 v_idx, i, reg_idx, reg;
418 u32 next_q_idx, next_q_type;
421 size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) +
422 (sizeof(struct i40e_virtchnl_iwarp_qv_info) *
423 (qvlist_info->num_vectors - 1));
424 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
425 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
427 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
428 for (i = 0; i < qvlist_info->num_vectors; i++) {
429 qv_info = &qvlist_info->qv_info[i];
432 v_idx = qv_info->v_idx;
434 /* Validate vector id belongs to this vf */
435 if (!i40e_vc_isvalid_vector_id(vf, v_idx))
438 vf->qvlist_info->qv_info[i] = *qv_info;
440 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
441 /* We might be sharing the interrupt, so get the first queue
442 * index and type, push it down the list by adding the new
443 * queue on top. Also link it with the new queue in CEQCTL.
445 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
446 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
447 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
448 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
449 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
451 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
452 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
453 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
454 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
455 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
456 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
457 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
458 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
460 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
461 reg = (qv_info->ceq_idx &
462 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
463 (I40E_QUEUE_TYPE_PE_CEQ <<
464 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
465 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
468 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
469 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
470 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
471 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
473 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
479 kfree(vf->qvlist_info);
480 vf->qvlist_info = NULL;
485 * i40e_config_vsi_tx_queue
486 * @vf: pointer to the VF info
487 * @vsi_id: id of VSI as provided by the FW
488 * @vsi_queue_id: vsi relative queue index
489 * @info: config. info
493 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
495 struct i40e_virtchnl_txq_info *info)
497 struct i40e_pf *pf = vf->pf;
498 struct i40e_hw *hw = &pf->hw;
499 struct i40e_hmc_obj_txq tx_ctx;
500 struct i40e_vsi *vsi;
505 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
509 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
510 vsi = i40e_find_vsi_from_id(pf, vsi_id);
516 /* clear the context structure first */
517 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
519 /* only set the required fields */
520 tx_ctx.base = info->dma_ring_addr / 128;
521 tx_ctx.qlen = info->ring_len;
522 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
523 tx_ctx.rdylist_act = 0;
524 tx_ctx.head_wb_ena = info->headwb_enabled;
525 tx_ctx.head_wb_addr = info->dma_headwb_addr;
527 /* clear the context in the HMC */
528 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
530 dev_err(&pf->pdev->dev,
531 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
537 /* set the context in the HMC */
538 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
540 dev_err(&pf->pdev->dev,
541 "Failed to set VF LAN Tx queue context %d error: %d\n",
547 /* associate this queue with the PCI VF function */
548 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
549 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
550 & I40E_QTX_CTL_PF_INDX_MASK);
551 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
552 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
553 & I40E_QTX_CTL_VFVM_INDX_MASK);
554 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
562 * i40e_config_vsi_rx_queue
563 * @vf: pointer to the VF info
564 * @vsi_id: id of VSI as provided by the FW
565 * @vsi_queue_id: vsi relative queue index
566 * @info: config. info
570 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
572 struct i40e_virtchnl_rxq_info *info)
574 struct i40e_pf *pf = vf->pf;
575 struct i40e_hw *hw = &pf->hw;
576 struct i40e_hmc_obj_rxq rx_ctx;
580 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
582 /* clear the context structure first */
583 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
585 /* only set the required fields */
586 rx_ctx.base = info->dma_ring_addr / 128;
587 rx_ctx.qlen = info->ring_len;
589 if (info->splithdr_enabled) {
590 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
592 I40E_RX_SPLIT_TCP_UDP |
594 /* header length validation */
595 if (info->hdr_size > ((2 * 1024) - 64)) {
599 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
601 /* set split mode 10b */
602 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
605 /* databuffer length validation */
606 if (info->databuffer_size > ((16 * 1024) - 128)) {
610 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
612 /* max pkt. length validation */
613 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
617 rx_ctx.rxmax = info->max_pkt_size;
619 /* enable 32bytes desc always */
623 rx_ctx.lrxqthresh = 2;
628 /* clear the context in the HMC */
629 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
631 dev_err(&pf->pdev->dev,
632 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
638 /* set the context in the HMC */
639 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
641 dev_err(&pf->pdev->dev,
642 "Failed to set VF LAN Rx queue context %d error: %d\n",
654 * @vf: pointer to the VF info
655 * @type: type of VSI to allocate
657 * alloc VF vsi context & resources
659 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
661 struct i40e_mac_filter *f = NULL;
662 struct i40e_pf *pf = vf->pf;
663 struct i40e_vsi *vsi;
666 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
669 dev_err(&pf->pdev->dev,
670 "add vsi failed for VF %d, aq_err %d\n",
671 vf->vf_id, pf->hw.aq.asq_last_status);
673 goto error_alloc_vsi_res;
675 if (type == I40E_VSI_SRIOV) {
676 u64 hena = i40e_pf_get_default_rss_hena(pf);
677 u8 broadcast[ETH_ALEN];
679 vf->lan_vsi_idx = vsi->idx;
680 vf->lan_vsi_id = vsi->id;
681 /* If the port VLAN has been configured and then the
682 * VF driver was removed then the VSI port VLAN
683 * configuration was destroyed. Check if there is
684 * a port VLAN and restore the VSI configuration if
687 if (vf->port_vlan_id)
688 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
690 spin_lock_bh(&vsi->mac_filter_hash_lock);
691 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
692 f = i40e_add_mac_filter(vsi,
693 vf->default_lan_addr.addr);
695 dev_info(&pf->pdev->dev,
696 "Could not add MAC filter %pM for VF %d\n",
697 vf->default_lan_addr.addr, vf->vf_id);
699 eth_broadcast_addr(broadcast);
700 f = i40e_add_mac_filter(vsi, broadcast);
702 dev_info(&pf->pdev->dev,
703 "Could not allocate VF broadcast filter\n");
704 spin_unlock_bh(&vsi->mac_filter_hash_lock);
705 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
706 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
709 /* program mac filter */
710 ret = i40e_sync_vsi_filters(vsi);
712 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
714 /* Set VF bandwidth if specified */
716 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
717 vf->tx_rate / 50, 0, NULL);
719 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
728 * i40e_enable_vf_mappings
729 * @vf: pointer to the VF info
733 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
735 struct i40e_pf *pf = vf->pf;
736 struct i40e_hw *hw = &pf->hw;
737 u32 reg, total_queue_pairs = 0;
740 /* Tell the hardware we're using noncontiguous mapping. HW requires
741 * that VF queues be mapped using this method, even when they are
742 * contiguous in real life
744 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
745 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
747 /* enable VF vplan_qtable mappings */
748 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
749 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
751 /* map PF queues to VF queues */
752 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
753 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
755 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
756 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
760 /* map PF queues to VSI */
761 for (j = 0; j < 7; j++) {
762 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
763 reg = 0x07FF07FF; /* unused */
765 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
768 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
772 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
780 * i40e_disable_vf_mappings
781 * @vf: pointer to the VF info
783 * disable VF mappings
785 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
787 struct i40e_pf *pf = vf->pf;
788 struct i40e_hw *hw = &pf->hw;
791 /* disable qp mappings */
792 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
793 for (i = 0; i < I40E_MAX_VSI_QP; i++)
794 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
795 I40E_QUEUE_END_OF_LIST);
801 * @vf: pointer to the VF info
805 static void i40e_free_vf_res(struct i40e_vf *vf)
807 struct i40e_pf *pf = vf->pf;
808 struct i40e_hw *hw = &pf->hw;
812 /* Start by disabling VF's configuration API to prevent the OS from
813 * accessing the VF's VSI after it's freed / invalidated.
815 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
817 /* free vsi & disconnect it from the parent uplink */
818 if (vf->lan_vsi_idx) {
819 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
824 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
826 /* disable interrupts so the VF starts in a known state */
827 for (i = 0; i < msix_vf; i++) {
828 /* format is same for both registers */
830 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
832 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
835 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
839 /* clear the irq settings */
840 for (i = 0; i < msix_vf; i++) {
841 /* format is same for both registers */
843 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
845 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
848 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
849 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
850 wr32(hw, reg_idx, reg);
853 /* reset some of the state variables keeping track of the resources */
854 vf->num_queue_pairs = 0;
860 * @vf: pointer to the VF info
862 * allocate VF resources
864 static int i40e_alloc_vf_res(struct i40e_vf *vf)
866 struct i40e_pf *pf = vf->pf;
867 int total_queue_pairs = 0;
870 /* allocate hw vsi context & associated resources */
871 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
874 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
877 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
879 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
881 /* store the total qps number for the runtime
884 vf->num_queue_pairs = total_queue_pairs;
886 /* VF is now completely initialized */
887 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
891 i40e_free_vf_res(vf);
896 #define VF_DEVICE_STATUS 0xAA
897 #define VF_TRANS_PENDING_MASK 0x20
899 * i40e_quiesce_vf_pci
900 * @vf: pointer to the VF structure
902 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
903 * if the transactions never clear.
905 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
907 struct i40e_pf *pf = vf->pf;
908 struct i40e_hw *hw = &pf->hw;
912 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
914 wr32(hw, I40E_PF_PCI_CIAA,
915 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
916 for (i = 0; i < 100; i++) {
917 reg = rd32(hw, I40E_PF_PCI_CIAD);
918 if ((reg & VF_TRANS_PENDING_MASK) == 0)
926 * i40e_trigger_vf_reset
927 * @vf: pointer to the VF structure
928 * @flr: VFLR was issued or not
930 * Trigger hardware to start a reset for a particular VF. Expects the caller
931 * to wait the proper amount of time to allow hardware to reset the VF before
932 * it cleans up and restores VF functionality.
934 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
936 struct i40e_pf *pf = vf->pf;
937 struct i40e_hw *hw = &pf->hw;
938 u32 reg, reg_idx, bit_idx;
941 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
943 /* Disable VF's configuration API during reset. The flag is re-enabled
944 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
945 * It's normally disabled in i40e_free_vf_res(), but it's safer
946 * to do it earlier to give some time to finish to any VF config
947 * functions that may still be running at this point.
949 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
951 /* In the case of a VFLR, the HW has already reset the VF and we
952 * just need to clean up, so don't hit the VFRTRIG register.
955 /* reset VF using VPGEN_VFRTRIG reg */
956 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
957 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
958 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
961 /* clear the VFLR bit in GLGEN_VFLRSTAT */
962 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
963 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
964 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
967 if (i40e_quiesce_vf_pci(vf))
968 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
973 * i40e_cleanup_reset_vf
974 * @vf: pointer to the VF structure
976 * Cleanup a VF after the hardware reset is finished. Expects the caller to
977 * have verified whether the reset is finished properly, and ensure the
978 * minimum amount of wait time has passed.
980 static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
982 struct i40e_pf *pf = vf->pf;
983 struct i40e_hw *hw = &pf->hw;
986 /* free VF resources to begin resetting the VSI state */
987 i40e_free_vf_res(vf);
989 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
990 * By doing this we allow HW to access VF memory at any point. If we
991 * did it any sooner, HW could access memory while it was being freed
992 * in i40e_free_vf_res(), causing an IOMMU fault.
994 * On the other hand, this needs to be done ASAP, because the VF driver
995 * is waiting for this to happen and may report a timeout. It's
996 * harmless, but it gets logged into Guest OS kernel log, so best avoid
999 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1000 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1001 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1003 /* reallocate VF resources to finish resetting the VSI state */
1004 if (!i40e_alloc_vf_res(vf)) {
1005 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1006 i40e_enable_vf_mappings(vf);
1007 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1008 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1009 /* Do not notify the client during VF init */
1010 if (test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1012 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1016 /* Tell the VF driver the reset is done. This needs to be done only
1017 * after VF has been fully initialized, because the VF driver may
1018 * request resources immediately after setting this flag.
1020 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
1025 * @vf: pointer to the VF structure
1026 * @flr: VFLR was issued or not
1030 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
1032 struct i40e_pf *pf = vf->pf;
1033 struct i40e_hw *hw = &pf->hw;
1038 /* If VFs have been disabled, there is no need to reset */
1039 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1042 i40e_trigger_vf_reset(vf, flr);
1044 /* poll VPGEN_VFRSTAT reg to make sure
1045 * that reset is complete
1047 for (i = 0; i < 10; i++) {
1048 /* VF reset requires driver to first reset the VF and then
1049 * poll the status register to make sure that the reset
1050 * completed successfully. Due to internal HW FIFO flushes,
1051 * we must wait 10ms before the register will be valid.
1053 usleep_range(10000, 20000);
1054 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1055 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1062 usleep_range(10000, 20000);
1065 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1067 usleep_range(10000, 20000);
1069 /* On initial reset, we don't have any queues to disable */
1070 if (vf->lan_vsi_idx != 0)
1071 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1073 i40e_cleanup_reset_vf(vf);
1076 clear_bit(__I40E_VF_DISABLE, pf->state);
1080 * i40e_reset_all_vfs
1081 * @pf: pointer to the PF structure
1082 * @flr: VFLR was issued or not
1084 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1085 * VF, then do all the waiting in one chunk, and finally finish restoring each
1086 * VF after the wait. This is useful during PF routines which need to reset
1087 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1089 void i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1091 struct i40e_hw *hw = &pf->hw;
1096 /* If we don't have any VFs, then there is nothing to reset */
1097 if (!pf->num_alloc_vfs)
1100 /* If VFs have been disabled, there is no need to reset */
1101 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1104 /* Begin reset on all VFs at once */
1105 for (v = 0; v < pf->num_alloc_vfs; v++)
1106 i40e_trigger_vf_reset(&pf->vf[v], flr);
1108 /* HW requires some time to make sure it can flush the FIFO for a VF
1109 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1110 * sequence to make sure that it has completed. We'll keep track of
1111 * the VFs using a simple iterator that increments once that VF has
1112 * finished resetting.
1114 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1115 usleep_range(10000, 20000);
1117 /* Check each VF in sequence, beginning with the VF to fail
1118 * the previous check.
1120 while (v < pf->num_alloc_vfs) {
1122 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1123 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1126 /* If the current VF has finished resetting, move on
1127 * to the next VF in sequence.
1134 usleep_range(10000, 20000);
1136 /* Display a warning if at least one VF didn't manage to reset in
1137 * time, but continue on with the operation.
1139 if (v < pf->num_alloc_vfs)
1140 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1142 usleep_range(10000, 20000);
1144 /* Begin disabling all the rings associated with VFs, but do not wait
1147 for (v = 0; v < pf->num_alloc_vfs; v++) {
1148 /* On initial reset, we don't have any queues to disable */
1149 if (pf->vf[v].lan_vsi_idx == 0)
1152 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1155 /* Now that we've notified HW to disable all of the VF rings, wait
1156 * until they finish.
1158 for (v = 0; v < pf->num_alloc_vfs; v++) {
1159 /* On initial reset, we don't have any queues to disable */
1160 if (pf->vf[v].lan_vsi_idx == 0)
1163 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1166 /* Hw may need up to 50ms to finish disabling the RX queues. We
1167 * minimize the wait by delaying only once for all VFs.
1171 /* Finish the reset on each VF */
1172 for (v = 0; v < pf->num_alloc_vfs; v++)
1173 i40e_cleanup_reset_vf(&pf->vf[v]);
1176 clear_bit(__I40E_VF_DISABLE, pf->state);
1181 * @pf: pointer to the PF structure
1185 void i40e_free_vfs(struct i40e_pf *pf)
1187 struct i40e_hw *hw = &pf->hw;
1188 u32 reg_idx, bit_idx;
1193 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1194 usleep_range(1000, 2000);
1196 i40e_notify_client_of_vf_enable(pf, 0);
1198 /* Amortize wait time by stopping all VFs at the same time */
1199 for (i = 0; i < pf->num_alloc_vfs; i++) {
1200 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1203 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1206 for (i = 0; i < pf->num_alloc_vfs; i++) {
1207 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1210 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1213 /* Disable IOV before freeing resources. This lets any VF drivers
1214 * running in the host get themselves cleaned up before we yank
1215 * the carpet out from underneath their feet.
1217 if (!pci_vfs_assigned(pf->pdev))
1218 pci_disable_sriov(pf->pdev);
1220 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1222 /* free up VF resources */
1223 tmp = pf->num_alloc_vfs;
1224 pf->num_alloc_vfs = 0;
1225 for (i = 0; i < tmp; i++) {
1226 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1227 i40e_free_vf_res(&pf->vf[i]);
1228 /* disable qp mappings */
1229 i40e_disable_vf_mappings(&pf->vf[i]);
1235 /* This check is for when the driver is unloaded while VFs are
1236 * assigned. Setting the number of VFs to 0 through sysfs is caught
1237 * before this function ever gets called.
1239 if (!pci_vfs_assigned(pf->pdev)) {
1240 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1241 * work correctly when SR-IOV gets re-enabled.
1243 for (vf_id = 0; vf_id < tmp; vf_id++) {
1244 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1245 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1246 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1249 clear_bit(__I40E_VF_DISABLE, pf->state);
1252 #ifdef CONFIG_PCI_IOV
1255 * @pf: pointer to the PF structure
1256 * @num_alloc_vfs: number of VFs to allocate
1258 * allocate VF resources
1260 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1262 struct i40e_vf *vfs;
1265 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1266 i40e_irq_dynamic_disable_icr0(pf);
1268 /* Check to see if we're just allocating resources for extant VFs */
1269 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1270 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1272 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1273 pf->num_alloc_vfs = 0;
1277 /* allocate memory */
1278 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1285 /* apply default profile */
1286 for (i = 0; i < num_alloc_vfs; i++) {
1288 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1291 /* assign default capabilities */
1292 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1293 vfs[i].spoofchk = true;
1295 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1298 pf->num_alloc_vfs = num_alloc_vfs;
1300 /* VF resources get allocated during reset */
1301 i40e_reset_all_vfs(pf, false);
1303 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1309 /* Re-enable interrupt 0. */
1310 i40e_irq_dynamic_enable_icr0(pf, false);
1316 * i40e_pci_sriov_enable
1317 * @pdev: pointer to a pci_dev structure
1318 * @num_vfs: number of VFs to allocate
1320 * Enable or change the number of VFs
1322 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1324 #ifdef CONFIG_PCI_IOV
1325 struct i40e_pf *pf = pci_get_drvdata(pdev);
1326 int pre_existing_vfs = pci_num_vf(pdev);
1329 if (test_bit(__I40E_TESTING, pf->state)) {
1330 dev_warn(&pdev->dev,
1331 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1336 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1338 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1341 if (num_vfs > pf->num_req_vfs) {
1342 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1343 num_vfs, pf->num_req_vfs);
1348 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1349 err = i40e_alloc_vfs(pf, num_vfs);
1351 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1365 * i40e_pci_sriov_configure
1366 * @pdev: pointer to a pci_dev structure
1367 * @num_vfs: number of VFs to allocate
1369 * Enable or change the number of VFs. Called when the user updates the number
1372 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1374 struct i40e_pf *pf = pci_get_drvdata(pdev);
1377 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1378 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1379 i40e_do_reset_safe(pf,
1380 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1382 return i40e_pci_sriov_enable(pdev, num_vfs);
1385 if (!pci_vfs_assigned(pf->pdev)) {
1387 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1388 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1390 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1396 /***********************virtual channel routines******************/
1399 * i40e_vc_send_msg_to_vf
1400 * @vf: pointer to the VF info
1401 * @v_opcode: virtual channel opcode
1402 * @v_retval: virtual channel return value
1403 * @msg: pointer to the msg buffer
1404 * @msglen: msg length
1408 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1409 u32 v_retval, u8 *msg, u16 msglen)
1416 /* validate the request */
1417 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1422 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1424 /* single place to detect unsuccessful return values */
1426 vf->num_invalid_msgs++;
1427 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1428 vf->vf_id, v_opcode, v_retval);
1429 if (vf->num_invalid_msgs >
1430 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1431 dev_err(&pf->pdev->dev,
1432 "Number of invalid messages exceeded for VF %d\n",
1434 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1435 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1438 vf->num_valid_msgs++;
1439 /* reset the invalid counter, if a valid message is received. */
1440 vf->num_invalid_msgs = 0;
1443 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1446 dev_info(&pf->pdev->dev,
1447 "Unable to send the message to VF %d aq_err %d\n",
1448 vf->vf_id, pf->hw.aq.asq_last_status);
1456 * i40e_vc_send_resp_to_vf
1457 * @vf: pointer to the VF info
1458 * @opcode: operation code
1459 * @retval: return value
1461 * send resp msg to VF
1463 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1464 enum i40e_virtchnl_ops opcode,
1467 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1471 * i40e_vc_get_version_msg
1472 * @vf: pointer to the VF info
1474 * called from the VF to request the API version used by the PF
1476 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1478 struct i40e_virtchnl_version_info info = {
1479 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1482 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1483 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1485 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1486 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1487 I40E_SUCCESS, (u8 *)&info,
1489 i40e_virtchnl_version_info));
1493 * i40e_vc_get_vf_resources_msg
1494 * @vf: pointer to the VF info
1495 * @msg: pointer to the msg buffer
1496 * @msglen: msg length
1498 * called from the VF to request its resources
1500 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1502 struct i40e_virtchnl_vf_resource *vfres = NULL;
1503 struct i40e_pf *pf = vf->pf;
1504 i40e_status aq_ret = 0;
1505 struct i40e_vsi *vsi;
1510 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
1511 aq_ret = I40E_ERR_PARAM;
1515 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1516 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1518 vfres = kzalloc(len, GFP_KERNEL);
1520 aq_ret = I40E_ERR_NO_MEMORY;
1525 vf->driver_caps = *(u32 *)msg;
1527 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1528 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1529 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1531 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1532 vsi = pf->vsi[vf->lan_vsi_idx];
1533 if (!vsi->info.pvid)
1534 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1536 if (i40e_vf_client_capable(pf, vf->vf_id) &&
1537 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
1538 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
1539 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1542 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1543 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF;
1545 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
1546 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1547 vfres->vf_offload_flags |=
1548 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1550 vfres->vf_offload_flags |=
1551 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1554 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1555 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1556 vfres->vf_offload_flags |=
1557 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1560 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP)
1561 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP;
1563 if ((pf->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE) &&
1564 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1565 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1567 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1568 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1569 dev_err(&pf->pdev->dev,
1570 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1572 ret = I40E_ERR_PARAM;
1575 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1578 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1579 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1580 vfres->vf_offload_flags |=
1581 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1584 vfres->num_vsis = num_vsis;
1585 vfres->num_queue_pairs = vf->num_queue_pairs;
1586 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1587 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
1588 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
1590 if (vf->lan_vsi_idx) {
1591 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
1592 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV;
1593 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1594 /* VFs only use TC 0 */
1595 vfres->vsi_res[0].qset_handle
1596 = le16_to_cpu(vsi->info.qs_handle[0]);
1597 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
1598 vf->default_lan_addr.addr);
1600 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1603 /* send the response back to the VF */
1604 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1605 aq_ret, (u8 *)vfres, len);
1612 * i40e_vc_reset_vf_msg
1613 * @vf: pointer to the VF info
1614 * @msg: pointer to the msg buffer
1615 * @msglen: msg length
1617 * called from the VF to reset itself,
1618 * unlike other virtchnl messages, PF driver
1619 * doesn't send the response back to the VF
1621 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1623 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
1624 i40e_reset_vf(vf, false);
1628 * i40e_getnum_vf_vsi_vlan_filters
1629 * @vsi: pointer to the vsi
1631 * called to get the number of VLANs offloaded on this VF
1633 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1635 struct i40e_mac_filter *f;
1636 int num_vlans = 0, bkt;
1638 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1639 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1647 * i40e_vc_config_promiscuous_mode_msg
1648 * @vf: pointer to the VF info
1649 * @msg: pointer to the msg buffer
1650 * @msglen: msg length
1652 * called from the VF to configure the promiscuous mode of
1655 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1656 u8 *msg, u16 msglen)
1658 struct i40e_virtchnl_promisc_info *info =
1659 (struct i40e_virtchnl_promisc_info *)msg;
1660 struct i40e_pf *pf = vf->pf;
1661 struct i40e_hw *hw = &pf->hw;
1662 struct i40e_mac_filter *f;
1663 i40e_status aq_ret = 0;
1664 bool allmulti = false;
1665 struct i40e_vsi *vsi;
1666 bool alluni = false;
1670 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1671 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
1672 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1674 aq_ret = I40E_ERR_PARAM;
1677 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1678 dev_err(&pf->pdev->dev,
1679 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1681 /* Lie to the VF on purpose. */
1685 /* Multicast promiscuous handling*/
1686 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1689 if (vf->port_vlan_id) {
1690 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
1694 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1695 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1696 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1698 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
1703 aq_err = pf->hw.aq.asq_last_status;
1705 dev_err(&pf->pdev->dev,
1706 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
1708 i40e_stat_str(&pf->hw, aq_ret),
1709 i40e_aq_str(&pf->hw, aq_err));
1714 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1716 aq_err = pf->hw.aq.asq_last_status;
1718 dev_err(&pf->pdev->dev,
1719 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1721 i40e_stat_str(&pf->hw, aq_ret),
1722 i40e_aq_str(&pf->hw, aq_err));
1728 dev_info(&pf->pdev->dev,
1729 "VF %d successfully set multicast promiscuous mode\n",
1732 set_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1734 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1737 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1739 if (vf->port_vlan_id) {
1740 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
1744 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1745 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1747 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) {
1749 i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
1754 aq_err = pf->hw.aq.asq_last_status;
1757 dev_err(&pf->pdev->dev,
1758 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
1760 i40e_stat_str(&pf->hw, aq_ret),
1761 i40e_aq_str(&pf->hw, aq_err));
1764 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid,
1767 aq_err = pf->hw.aq.asq_last_status;
1769 dev_err(&pf->pdev->dev,
1770 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
1771 vf->vf_id, info->flags,
1772 i40e_stat_str(&pf->hw, aq_ret),
1773 i40e_aq_str(&pf->hw, aq_err));
1779 dev_info(&pf->pdev->dev,
1780 "VF %d successfully set unicast promiscuous mode\n",
1783 set_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1785 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1789 /* send the response to the VF */
1790 return i40e_vc_send_resp_to_vf(vf,
1791 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1796 * i40e_vc_config_queues_msg
1797 * @vf: pointer to the VF info
1798 * @msg: pointer to the msg buffer
1799 * @msglen: msg length
1801 * called from the VF to configure the rx/tx
1804 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1806 struct i40e_virtchnl_vsi_queue_config_info *qci =
1807 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1808 struct i40e_virtchnl_queue_pair_info *qpi;
1809 struct i40e_pf *pf = vf->pf;
1810 u16 vsi_id, vsi_queue_id;
1811 i40e_status aq_ret = 0;
1814 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1815 aq_ret = I40E_ERR_PARAM;
1819 vsi_id = qci->vsi_id;
1820 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1821 aq_ret = I40E_ERR_PARAM;
1824 for (i = 0; i < qci->num_queue_pairs; i++) {
1825 qpi = &qci->qpair[i];
1826 vsi_queue_id = qpi->txq.queue_id;
1827 if ((qpi->txq.vsi_id != vsi_id) ||
1828 (qpi->rxq.vsi_id != vsi_id) ||
1829 (qpi->rxq.queue_id != vsi_queue_id) ||
1830 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1831 aq_ret = I40E_ERR_PARAM;
1835 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1837 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1839 aq_ret = I40E_ERR_PARAM;
1843 /* set vsi num_queue_pairs in use to num configured by VF */
1844 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1847 /* send the response to the VF */
1848 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1853 * i40e_vc_config_irq_map_msg
1854 * @vf: pointer to the VF info
1855 * @msg: pointer to the msg buffer
1856 * @msglen: msg length
1858 * called from the VF to configure the irq to
1861 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1863 struct i40e_virtchnl_irq_map_info *irqmap_info =
1864 (struct i40e_virtchnl_irq_map_info *)msg;
1865 struct i40e_virtchnl_vector_map *map;
1866 u16 vsi_id, vsi_queue_id, vector_id;
1867 i40e_status aq_ret = 0;
1868 unsigned long tempmap;
1871 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1872 aq_ret = I40E_ERR_PARAM;
1876 for (i = 0; i < irqmap_info->num_vectors; i++) {
1877 map = &irqmap_info->vecmap[i];
1879 vector_id = map->vector_id;
1880 vsi_id = map->vsi_id;
1881 /* validate msg params */
1882 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1883 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1884 aq_ret = I40E_ERR_PARAM;
1888 /* lookout for the invalid queue index */
1889 tempmap = map->rxq_map;
1890 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1891 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1893 aq_ret = I40E_ERR_PARAM;
1898 tempmap = map->txq_map;
1899 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1900 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1902 aq_ret = I40E_ERR_PARAM;
1907 i40e_config_irq_link_list(vf, vsi_id, map);
1910 /* send the response to the VF */
1911 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1916 * i40e_vc_enable_queues_msg
1917 * @vf: pointer to the VF info
1918 * @msg: pointer to the msg buffer
1919 * @msglen: msg length
1921 * called from the VF to enable all or specific queue(s)
1923 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1925 struct i40e_virtchnl_queue_select *vqs =
1926 (struct i40e_virtchnl_queue_select *)msg;
1927 struct i40e_pf *pf = vf->pf;
1928 u16 vsi_id = vqs->vsi_id;
1929 i40e_status aq_ret = 0;
1931 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1932 aq_ret = I40E_ERR_PARAM;
1936 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1937 aq_ret = I40E_ERR_PARAM;
1941 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1942 aq_ret = I40E_ERR_PARAM;
1946 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx]))
1947 aq_ret = I40E_ERR_TIMEOUT;
1949 /* send the response to the VF */
1950 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1955 * i40e_vc_disable_queues_msg
1956 * @vf: pointer to the VF info
1957 * @msg: pointer to the msg buffer
1958 * @msglen: msg length
1960 * called from the VF to disable all or specific
1963 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1965 struct i40e_virtchnl_queue_select *vqs =
1966 (struct i40e_virtchnl_queue_select *)msg;
1967 struct i40e_pf *pf = vf->pf;
1968 i40e_status aq_ret = 0;
1970 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1971 aq_ret = I40E_ERR_PARAM;
1975 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1976 aq_ret = I40E_ERR_PARAM;
1980 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1981 aq_ret = I40E_ERR_PARAM;
1985 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1988 /* send the response to the VF */
1989 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1994 * i40e_vc_get_stats_msg
1995 * @vf: pointer to the VF info
1996 * @msg: pointer to the msg buffer
1997 * @msglen: msg length
1999 * called from the VF to get vsi stats
2001 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2003 struct i40e_virtchnl_queue_select *vqs =
2004 (struct i40e_virtchnl_queue_select *)msg;
2005 struct i40e_pf *pf = vf->pf;
2006 struct i40e_eth_stats stats;
2007 i40e_status aq_ret = 0;
2008 struct i40e_vsi *vsi;
2010 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2012 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2013 aq_ret = I40E_ERR_PARAM;
2017 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2018 aq_ret = I40E_ERR_PARAM;
2022 vsi = pf->vsi[vf->lan_vsi_idx];
2024 aq_ret = I40E_ERR_PARAM;
2027 i40e_update_eth_stats(vsi);
2028 stats = vsi->eth_stats;
2031 /* send the response back to the VF */
2032 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
2033 (u8 *)&stats, sizeof(stats));
2036 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */
2037 #define I40E_VC_MAX_MAC_ADDR_PER_VF 12
2038 #define I40E_VC_MAX_VLAN_PER_VF 8
2041 * i40e_check_vf_permission
2042 * @vf: pointer to the VF info
2043 * @macaddr: pointer to the MAC Address being checked
2045 * Check if the VF has permission to add or delete unicast MAC address
2046 * filters and return error code -EPERM if not. Then check if the
2047 * address filter requested is broadcast or zero and if so return
2048 * an invalid MAC address error code.
2050 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
2052 struct i40e_pf *pf = vf->pf;
2055 if (is_broadcast_ether_addr(macaddr) ||
2056 is_zero_ether_addr(macaddr)) {
2057 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
2058 ret = I40E_ERR_INVALID_MAC_ADDR;
2059 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
2060 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2061 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
2062 /* If the host VMM administrator has set the VF MAC address
2063 * administratively via the ndo_set_vf_mac command then deny
2064 * permission to the VF to add or delete unicast MAC addresses.
2065 * Unless the VF is privileged and then it can do whatever.
2066 * The VF may request to set the MAC address filter already
2067 * assigned to it so do not return an error in that case.
2069 dev_err(&pf->pdev->dev,
2070 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n");
2072 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) &&
2073 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2074 dev_err(&pf->pdev->dev,
2075 "VF is not trusted, switch the VF to trusted to add more functionality\n");
2082 * i40e_vc_add_mac_addr_msg
2083 * @vf: pointer to the VF info
2084 * @msg: pointer to the msg buffer
2085 * @msglen: msg length
2087 * add guest mac address filter
2089 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2091 struct i40e_virtchnl_ether_addr_list *al =
2092 (struct i40e_virtchnl_ether_addr_list *)msg;
2093 struct i40e_pf *pf = vf->pf;
2094 struct i40e_vsi *vsi = NULL;
2095 u16 vsi_id = al->vsi_id;
2096 i40e_status ret = 0;
2099 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2100 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2101 ret = I40E_ERR_PARAM;
2105 for (i = 0; i < al->num_elements; i++) {
2106 ret = i40e_check_vf_permission(vf, al->list[i].addr);
2110 vsi = pf->vsi[vf->lan_vsi_idx];
2112 /* Lock once, because all function inside for loop accesses VSI's
2113 * MAC filter list which needs to be protected using same lock.
2115 spin_lock_bh(&vsi->mac_filter_hash_lock);
2117 /* add new addresses to the list */
2118 for (i = 0; i < al->num_elements; i++) {
2119 struct i40e_mac_filter *f;
2121 f = i40e_find_mac(vsi, al->list[i].addr);
2123 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2126 dev_err(&pf->pdev->dev,
2127 "Unable to add MAC filter %pM for VF %d\n",
2128 al->list[i].addr, vf->vf_id);
2129 ret = I40E_ERR_PARAM;
2130 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2136 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2138 /* program the updated filter list */
2139 ret = i40e_sync_vsi_filters(vsi);
2141 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2145 /* send the response to the VF */
2146 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
2151 * i40e_vc_del_mac_addr_msg
2152 * @vf: pointer to the VF info
2153 * @msg: pointer to the msg buffer
2154 * @msglen: msg length
2156 * remove guest mac address filter
2158 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2160 struct i40e_virtchnl_ether_addr_list *al =
2161 (struct i40e_virtchnl_ether_addr_list *)msg;
2162 struct i40e_pf *pf = vf->pf;
2163 struct i40e_vsi *vsi = NULL;
2164 u16 vsi_id = al->vsi_id;
2165 i40e_status ret = 0;
2168 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2169 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2170 ret = I40E_ERR_PARAM;
2174 for (i = 0; i < al->num_elements; i++) {
2175 if (is_broadcast_ether_addr(al->list[i].addr) ||
2176 is_zero_ether_addr(al->list[i].addr)) {
2177 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2178 al->list[i].addr, vf->vf_id);
2179 ret = I40E_ERR_INVALID_MAC_ADDR;
2183 vsi = pf->vsi[vf->lan_vsi_idx];
2185 spin_lock_bh(&vsi->mac_filter_hash_lock);
2186 /* delete addresses from the list */
2187 for (i = 0; i < al->num_elements; i++)
2188 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2189 ret = I40E_ERR_INVALID_MAC_ADDR;
2190 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2196 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2198 /* program the updated filter list */
2199 ret = i40e_sync_vsi_filters(vsi);
2201 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2205 /* send the response to the VF */
2206 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
2211 * i40e_vc_add_vlan_msg
2212 * @vf: pointer to the VF info
2213 * @msg: pointer to the msg buffer
2214 * @msglen: msg length
2216 * program guest vlan id
2218 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2220 struct i40e_virtchnl_vlan_filter_list *vfl =
2221 (struct i40e_virtchnl_vlan_filter_list *)msg;
2222 struct i40e_pf *pf = vf->pf;
2223 struct i40e_vsi *vsi = NULL;
2224 u16 vsi_id = vfl->vsi_id;
2225 i40e_status aq_ret = 0;
2228 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2229 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2230 dev_err(&pf->pdev->dev,
2231 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2234 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2235 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2236 aq_ret = I40E_ERR_PARAM;
2240 for (i = 0; i < vfl->num_elements; i++) {
2241 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2242 aq_ret = I40E_ERR_PARAM;
2243 dev_err(&pf->pdev->dev,
2244 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2248 vsi = pf->vsi[vf->lan_vsi_idx];
2249 if (vsi->info.pvid) {
2250 aq_ret = I40E_ERR_PARAM;
2254 i40e_vlan_stripping_enable(vsi);
2255 for (i = 0; i < vfl->num_elements; i++) {
2256 /* add new VLAN filter */
2257 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2261 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2262 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2266 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2267 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2273 dev_err(&pf->pdev->dev,
2274 "Unable to add VLAN filter %d for VF %d, error %d\n",
2275 vfl->vlan_id[i], vf->vf_id, ret);
2279 /* send the response to the VF */
2280 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
2284 * i40e_vc_remove_vlan_msg
2285 * @vf: pointer to the VF info
2286 * @msg: pointer to the msg buffer
2287 * @msglen: msg length
2289 * remove programmed guest vlan id
2291 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2293 struct i40e_virtchnl_vlan_filter_list *vfl =
2294 (struct i40e_virtchnl_vlan_filter_list *)msg;
2295 struct i40e_pf *pf = vf->pf;
2296 struct i40e_vsi *vsi = NULL;
2297 u16 vsi_id = vfl->vsi_id;
2298 i40e_status aq_ret = 0;
2301 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2302 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2303 aq_ret = I40E_ERR_PARAM;
2307 for (i = 0; i < vfl->num_elements; i++) {
2308 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2309 aq_ret = I40E_ERR_PARAM;
2314 vsi = pf->vsi[vf->lan_vsi_idx];
2315 if (vsi->info.pvid) {
2316 aq_ret = I40E_ERR_PARAM;
2320 for (i = 0; i < vfl->num_elements; i++) {
2321 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2324 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2325 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2329 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2330 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2337 /* send the response to the VF */
2338 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
2343 * @vf: pointer to the VF info
2344 * @msg: pointer to the msg buffer
2345 * @msglen: msg length
2347 * called from the VF for the iwarp msgs
2349 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2351 struct i40e_pf *pf = vf->pf;
2352 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2353 i40e_status aq_ret = 0;
2355 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2356 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2357 aq_ret = I40E_ERR_PARAM;
2361 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2365 /* send the response to the VF */
2366 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
2371 * i40e_vc_iwarp_qvmap_msg
2372 * @vf: pointer to the VF info
2373 * @msg: pointer to the msg buffer
2374 * @msglen: msg length
2375 * @config: config qvmap or release it
2377 * called from the VF for the iwarp msgs
2379 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2382 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
2383 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2384 i40e_status aq_ret = 0;
2386 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2387 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2388 aq_ret = I40E_ERR_PARAM;
2393 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2394 aq_ret = I40E_ERR_PARAM;
2396 i40e_release_iwarp_qvlist(vf);
2400 /* send the response to the VF */
2401 return i40e_vc_send_resp_to_vf(vf,
2402 config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2403 I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2408 * i40e_vc_config_rss_key
2409 * @vf: pointer to the VF info
2410 * @msg: pointer to the msg buffer
2411 * @msglen: msg length
2413 * Configure the VF's RSS key
2415 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen)
2417 struct i40e_virtchnl_rss_key *vrk =
2418 (struct i40e_virtchnl_rss_key *)msg;
2419 struct i40e_pf *pf = vf->pf;
2420 struct i40e_vsi *vsi = NULL;
2421 u16 vsi_id = vrk->vsi_id;
2422 i40e_status aq_ret = 0;
2424 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2425 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2426 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2427 aq_ret = I40E_ERR_PARAM;
2431 vsi = pf->vsi[vf->lan_vsi_idx];
2432 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
2434 /* send the response to the VF */
2435 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY,
2440 * i40e_vc_config_rss_lut
2441 * @vf: pointer to the VF info
2442 * @msg: pointer to the msg buffer
2443 * @msglen: msg length
2445 * Configure the VF's RSS LUT
2447 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen)
2449 struct i40e_virtchnl_rss_lut *vrl =
2450 (struct i40e_virtchnl_rss_lut *)msg;
2451 struct i40e_pf *pf = vf->pf;
2452 struct i40e_vsi *vsi = NULL;
2453 u16 vsi_id = vrl->vsi_id;
2454 i40e_status aq_ret = 0;
2456 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2457 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2458 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
2459 aq_ret = I40E_ERR_PARAM;
2463 vsi = pf->vsi[vf->lan_vsi_idx];
2464 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
2465 /* send the response to the VF */
2467 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT,
2472 * i40e_vc_get_rss_hena
2473 * @vf: pointer to the VF info
2474 * @msg: pointer to the msg buffer
2475 * @msglen: msg length
2477 * Return the RSS HENA bits allowed by the hardware
2479 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2481 struct i40e_virtchnl_rss_hena *vrh = NULL;
2482 struct i40e_pf *pf = vf->pf;
2483 i40e_status aq_ret = 0;
2486 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2487 aq_ret = I40E_ERR_PARAM;
2490 len = sizeof(struct i40e_virtchnl_rss_hena);
2492 vrh = kzalloc(len, GFP_KERNEL);
2494 aq_ret = I40E_ERR_NO_MEMORY;
2498 vrh->hena = i40e_pf_get_default_rss_hena(pf);
2500 /* send the response back to the VF */
2501 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS,
2502 aq_ret, (u8 *)vrh, len);
2508 * i40e_vc_set_rss_hena
2509 * @vf: pointer to the VF info
2510 * @msg: pointer to the msg buffer
2511 * @msglen: msg length
2513 * Set the RSS HENA bits for the VF
2515 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2517 struct i40e_virtchnl_rss_hena *vrh =
2518 (struct i40e_virtchnl_rss_hena *)msg;
2519 struct i40e_pf *pf = vf->pf;
2520 struct i40e_hw *hw = &pf->hw;
2521 i40e_status aq_ret = 0;
2523 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2524 aq_ret = I40E_ERR_PARAM;
2527 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
2528 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
2529 (u32)(vrh->hena >> 32));
2531 /* send the response to the VF */
2533 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA,
2538 * i40e_vc_validate_vf_msg
2539 * @vf: pointer to the VF info
2540 * @msg: pointer to the msg buffer
2541 * @msglen: msg length
2542 * @msghndl: msg handle
2546 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
2547 u32 v_retval, u8 *msg, u16 msglen)
2549 bool err_msg_format = false;
2552 /* Check if VF is disabled. */
2553 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
2554 return I40E_ERR_PARAM;
2556 /* Validate message length. */
2558 case I40E_VIRTCHNL_OP_VERSION:
2559 valid_len = sizeof(struct i40e_virtchnl_version_info);
2561 case I40E_VIRTCHNL_OP_RESET_VF:
2563 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2565 valid_len = sizeof(u32);
2567 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
2568 valid_len = sizeof(struct i40e_virtchnl_txq_info);
2570 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
2571 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
2573 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2574 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
2575 if (msglen >= valid_len) {
2576 struct i40e_virtchnl_vsi_queue_config_info *vqc =
2577 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
2578 valid_len += (vqc->num_queue_pairs *
2580 i40e_virtchnl_queue_pair_info));
2581 if (vqc->num_queue_pairs == 0)
2582 err_msg_format = true;
2585 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2586 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
2587 if (msglen >= valid_len) {
2588 struct i40e_virtchnl_irq_map_info *vimi =
2589 (struct i40e_virtchnl_irq_map_info *)msg;
2590 valid_len += (vimi->num_vectors *
2591 sizeof(struct i40e_virtchnl_vector_map));
2592 if (vimi->num_vectors == 0)
2593 err_msg_format = true;
2596 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2597 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2598 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2600 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2601 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2602 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
2603 if (msglen >= valid_len) {
2604 struct i40e_virtchnl_ether_addr_list *veal =
2605 (struct i40e_virtchnl_ether_addr_list *)msg;
2606 valid_len += veal->num_elements *
2607 sizeof(struct i40e_virtchnl_ether_addr);
2608 if (veal->num_elements == 0)
2609 err_msg_format = true;
2612 case I40E_VIRTCHNL_OP_ADD_VLAN:
2613 case I40E_VIRTCHNL_OP_DEL_VLAN:
2614 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
2615 if (msglen >= valid_len) {
2616 struct i40e_virtchnl_vlan_filter_list *vfl =
2617 (struct i40e_virtchnl_vlan_filter_list *)msg;
2618 valid_len += vfl->num_elements * sizeof(u16);
2619 if (vfl->num_elements == 0)
2620 err_msg_format = true;
2623 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2624 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
2626 case I40E_VIRTCHNL_OP_GET_STATS:
2627 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2629 case I40E_VIRTCHNL_OP_IWARP:
2630 /* These messages are opaque to us and will be validated in
2631 * the RDMA client code. We just need to check for nonzero
2632 * length. The firmware will enforce max length restrictions.
2637 err_msg_format = true;
2639 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2642 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2643 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
2644 if (msglen >= valid_len) {
2645 struct i40e_virtchnl_iwarp_qvlist_info *qv =
2646 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2647 if (qv->num_vectors == 0) {
2648 err_msg_format = true;
2651 valid_len += ((qv->num_vectors - 1) *
2652 sizeof(struct i40e_virtchnl_iwarp_qv_info));
2655 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2656 valid_len = sizeof(struct i40e_virtchnl_rss_key);
2657 if (msglen >= valid_len) {
2658 struct i40e_virtchnl_rss_key *vrk =
2659 (struct i40e_virtchnl_rss_key *)msg;
2660 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
2661 err_msg_format = true;
2664 valid_len += vrk->key_len - 1;
2667 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2668 valid_len = sizeof(struct i40e_virtchnl_rss_lut);
2669 if (msglen >= valid_len) {
2670 struct i40e_virtchnl_rss_lut *vrl =
2671 (struct i40e_virtchnl_rss_lut *)msg;
2672 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
2673 err_msg_format = true;
2676 valid_len += vrl->lut_entries - 1;
2679 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2681 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2682 valid_len = sizeof(struct i40e_virtchnl_rss_hena);
2684 /* These are always errors coming from the VF. */
2685 case I40E_VIRTCHNL_OP_EVENT:
2686 case I40E_VIRTCHNL_OP_UNKNOWN:
2690 /* few more checks */
2691 if ((valid_len != msglen) || (err_msg_format)) {
2692 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2700 * i40e_vc_process_vf_msg
2701 * @pf: pointer to the PF structure
2702 * @vf_id: source VF id
2703 * @msg: pointer to the msg buffer
2704 * @msglen: msg length
2705 * @msghndl: msg handle
2707 * called from the common aeq/arq handler to
2708 * process request from VF
2710 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
2711 u32 v_retval, u8 *msg, u16 msglen)
2713 struct i40e_hw *hw = &pf->hw;
2714 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
2718 pf->vf_aq_requests++;
2719 if (local_vf_id >= pf->num_alloc_vfs)
2721 vf = &(pf->vf[local_vf_id]);
2722 /* perform basic checks on the msg */
2723 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
2726 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2727 local_vf_id, v_opcode, msglen);
2732 case I40E_VIRTCHNL_OP_VERSION:
2733 ret = i40e_vc_get_version_msg(vf, msg);
2735 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2736 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2738 case I40E_VIRTCHNL_OP_RESET_VF:
2739 i40e_vc_reset_vf_msg(vf);
2742 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2743 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2745 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2746 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2748 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2749 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2751 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2752 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2753 i40e_vc_notify_vf_link_state(vf);
2755 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2756 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2758 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2759 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2761 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2762 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2764 case I40E_VIRTCHNL_OP_ADD_VLAN:
2765 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2767 case I40E_VIRTCHNL_OP_DEL_VLAN:
2768 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2770 case I40E_VIRTCHNL_OP_GET_STATS:
2771 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2773 case I40E_VIRTCHNL_OP_IWARP:
2774 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2776 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2777 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2779 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2780 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2782 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2783 ret = i40e_vc_config_rss_key(vf, msg, msglen);
2785 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2786 ret = i40e_vc_config_rss_lut(vf, msg, msglen);
2788 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2789 ret = i40e_vc_get_rss_hena(vf, msg, msglen);
2791 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2792 ret = i40e_vc_set_rss_hena(vf, msg, msglen);
2795 case I40E_VIRTCHNL_OP_UNKNOWN:
2797 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2798 v_opcode, local_vf_id);
2799 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2800 I40E_ERR_NOT_IMPLEMENTED);
2808 * i40e_vc_process_vflr_event
2809 * @pf: pointer to the PF structure
2811 * called from the vlfr irq handler to
2812 * free up VF resources and state variables
2814 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2816 struct i40e_hw *hw = &pf->hw;
2817 u32 reg, reg_idx, bit_idx;
2821 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
2824 /* Re-enable the VFLR interrupt cause here, before looking for which
2825 * VF got reset. Otherwise, if another VF gets a reset while the
2826 * first one is being processed, that interrupt will be lost, and
2827 * that VF will be stuck in reset forever.
2829 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2830 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2831 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2834 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
2835 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2836 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2837 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2838 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2839 vf = &pf->vf[vf_id];
2840 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2841 if (reg & BIT(bit_idx))
2842 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
2843 i40e_reset_vf(vf, true);
2850 * i40e_ndo_set_vf_mac
2851 * @netdev: network interface device structure
2852 * @vf_id: VF identifier
2855 * program VF mac address
2857 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2859 struct i40e_netdev_priv *np = netdev_priv(netdev);
2860 struct i40e_vsi *vsi = np->vsi;
2861 struct i40e_pf *pf = vsi->back;
2862 struct i40e_mac_filter *f;
2867 /* validate the request */
2868 if (vf_id >= pf->num_alloc_vfs) {
2869 dev_err(&pf->pdev->dev,
2870 "Invalid VF Identifier %d\n", vf_id);
2875 vf = &(pf->vf[vf_id]);
2876 vsi = pf->vsi[vf->lan_vsi_idx];
2877 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
2878 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2884 if (is_multicast_ether_addr(mac)) {
2885 dev_err(&pf->pdev->dev,
2886 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2891 /* Lock once because below invoked function add/del_filter requires
2892 * mac_filter_hash_lock to be held
2894 spin_lock_bh(&vsi->mac_filter_hash_lock);
2896 /* delete the temporary mac address */
2897 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2898 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2900 /* Delete all the filters for this VSI - we're going to kill it
2903 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist)
2904 __i40e_del_filter(vsi, f);
2906 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2908 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2909 /* program mac filter */
2910 if (i40e_sync_vsi_filters(vsi)) {
2911 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2915 ether_addr_copy(vf->default_lan_addr.addr, mac);
2916 vf->pf_set_mac = true;
2917 /* Force the VF driver stop so it has to reload with new MAC address */
2918 i40e_vc_disable_vf(pf, vf);
2919 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2926 * i40e_ndo_set_vf_port_vlan
2927 * @netdev: network interface device structure
2928 * @vf_id: VF identifier
2929 * @vlan_id: mac address
2930 * @qos: priority setting
2931 * @vlan_proto: vlan protocol
2933 * program VF vlan id and/or qos
2935 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
2936 u16 vlan_id, u8 qos, __be16 vlan_proto)
2938 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2939 struct i40e_netdev_priv *np = netdev_priv(netdev);
2940 struct i40e_pf *pf = np->vsi->back;
2941 struct i40e_vsi *vsi;
2945 /* validate the request */
2946 if (vf_id >= pf->num_alloc_vfs) {
2947 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2952 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2953 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2958 if (vlan_proto != htons(ETH_P_8021Q)) {
2959 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
2960 ret = -EPROTONOSUPPORT;
2964 vf = &(pf->vf[vf_id]);
2965 vsi = pf->vsi[vf->lan_vsi_idx];
2966 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
2967 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2973 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2974 /* duplicate request, so just return success */
2977 /* Locked once because multiple functions below iterate list */
2978 spin_lock_bh(&vsi->mac_filter_hash_lock);
2980 if (le16_to_cpu(vsi->info.pvid) == 0 && i40e_is_vsi_in_vlan(vsi)) {
2981 dev_err(&pf->pdev->dev,
2982 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
2984 /* Administrator Error - knock the VF offline until he does
2985 * the right thing by reconfiguring his network correctly
2986 * and then reloading the VF driver.
2988 i40e_vc_disable_vf(pf, vf);
2989 /* During reset the VF got a new VSI, so refresh the pointer. */
2990 vsi = pf->vsi[vf->lan_vsi_idx];
2993 /* Check for condition where there was already a port VLAN ID
2994 * filter set and now it is being deleted by setting it to zero.
2995 * Additionally check for the condition where there was a port
2996 * VLAN but now there is a new and different port VLAN being set.
2997 * Before deleting all the old VLAN filters we must add new ones
2998 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2999 * MAC addresses deleted.
3001 if ((!(vlan_id || qos) ||
3002 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
3004 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
3006 dev_info(&vsi->back->pdev->dev,
3007 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
3008 vsi->back->hw.aq.asq_last_status);
3009 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3014 if (vsi->info.pvid) {
3015 /* remove all filters on the old VLAN */
3016 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
3021 ret = i40e_vsi_add_pvid(vsi, vlanprio);
3023 i40e_vsi_remove_pvid(vsi);
3026 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
3027 vlan_id, qos, vf_id);
3029 /* add new VLAN filter for each MAC */
3030 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
3032 dev_info(&vsi->back->pdev->dev,
3033 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
3034 vsi->back->hw.aq.asq_last_status);
3035 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3039 /* remove the previously added non-VLAN MAC filters */
3040 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
3043 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3045 /* Schedule the worker thread to take care of applying changes */
3046 i40e_service_event_schedule(vsi->back);
3049 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
3053 /* The Port VLAN needs to be saved across resets the same as the
3054 * default LAN MAC address.
3056 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
3063 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
3064 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
3066 * i40e_ndo_set_vf_bw
3067 * @netdev: network interface device structure
3068 * @vf_id: VF identifier
3071 * configure VF Tx rate
3073 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
3076 struct i40e_netdev_priv *np = netdev_priv(netdev);
3077 struct i40e_pf *pf = np->vsi->back;
3078 struct i40e_vsi *vsi;
3083 /* validate the request */
3084 if (vf_id >= pf->num_alloc_vfs) {
3085 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
3091 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
3092 min_tx_rate, vf_id);
3096 vf = &(pf->vf[vf_id]);
3097 vsi = pf->vsi[vf->lan_vsi_idx];
3098 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3099 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3105 switch (pf->hw.phy.link_info.link_speed) {
3106 case I40E_LINK_SPEED_40GB:
3109 case I40E_LINK_SPEED_25GB:
3112 case I40E_LINK_SPEED_20GB:
3115 case I40E_LINK_SPEED_10GB:
3118 case I40E_LINK_SPEED_1GB:
3125 if (max_tx_rate > speed) {
3126 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.\n",
3127 max_tx_rate, vf->vf_id);
3132 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
3133 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
3137 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
3138 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
3139 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
3140 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
3142 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
3147 vf->tx_rate = max_tx_rate;
3153 * i40e_ndo_get_vf_config
3154 * @netdev: network interface device structure
3155 * @vf_id: VF identifier
3156 * @ivi: VF configuration structure
3158 * return VF configuration
3160 int i40e_ndo_get_vf_config(struct net_device *netdev,
3161 int vf_id, struct ifla_vf_info *ivi)
3163 struct i40e_netdev_priv *np = netdev_priv(netdev);
3164 struct i40e_vsi *vsi = np->vsi;
3165 struct i40e_pf *pf = vsi->back;
3169 /* validate the request */
3170 if (vf_id >= pf->num_alloc_vfs) {
3171 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3176 vf = &(pf->vf[vf_id]);
3177 /* first vsi is always the LAN vsi */
3178 vsi = pf->vsi[vf->lan_vsi_idx];
3179 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3180 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3188 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
3190 ivi->max_tx_rate = vf->tx_rate;
3191 ivi->min_tx_rate = 0;
3192 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
3193 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
3194 I40E_VLAN_PRIORITY_SHIFT;
3195 if (vf->link_forced == false)
3196 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
3197 else if (vf->link_up == true)
3198 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
3200 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
3201 ivi->spoofchk = vf->spoofchk;
3202 ivi->trusted = vf->trusted;
3210 * i40e_ndo_set_vf_link_state
3211 * @netdev: network interface device structure
3212 * @vf_id: VF identifier
3213 * @link: required link state
3215 * Set the link state of a specified VF, regardless of physical link state
3217 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
3219 struct i40e_netdev_priv *np = netdev_priv(netdev);
3220 struct i40e_pf *pf = np->vsi->back;
3221 struct i40e_virtchnl_pf_event pfe;
3222 struct i40e_hw *hw = &pf->hw;
3227 /* validate the request */
3228 if (vf_id >= pf->num_alloc_vfs) {
3229 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3234 vf = &pf->vf[vf_id];
3235 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
3237 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
3238 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
3241 case IFLA_VF_LINK_STATE_AUTO:
3242 vf->link_forced = false;
3243 pfe.event_data.link_event.link_status =
3244 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
3245 pfe.event_data.link_event.link_speed =
3246 pf->hw.phy.link_info.link_speed;
3248 case IFLA_VF_LINK_STATE_ENABLE:
3249 vf->link_forced = true;
3251 pfe.event_data.link_event.link_status = true;
3252 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
3254 case IFLA_VF_LINK_STATE_DISABLE:
3255 vf->link_forced = true;
3256 vf->link_up = false;
3257 pfe.event_data.link_event.link_status = false;
3258 pfe.event_data.link_event.link_speed = 0;
3264 /* Notify the VF of its new link state */
3265 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
3266 0, (u8 *)&pfe, sizeof(pfe), NULL);
3273 * i40e_ndo_set_vf_spoofchk
3274 * @netdev: network interface device structure
3275 * @vf_id: VF identifier
3276 * @enable: flag to enable or disable feature
3278 * Enable or disable VF spoof checking
3280 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
3282 struct i40e_netdev_priv *np = netdev_priv(netdev);
3283 struct i40e_vsi *vsi = np->vsi;
3284 struct i40e_pf *pf = vsi->back;
3285 struct i40e_vsi_context ctxt;
3286 struct i40e_hw *hw = &pf->hw;
3290 /* validate the request */
3291 if (vf_id >= pf->num_alloc_vfs) {
3292 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3297 vf = &(pf->vf[vf_id]);
3298 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3299 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3305 if (enable == vf->spoofchk)
3308 vf->spoofchk = enable;
3309 memset(&ctxt, 0, sizeof(ctxt));
3310 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
3311 ctxt.pf_num = pf->hw.pf_id;
3312 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
3314 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
3315 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
3316 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
3318 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
3327 * i40e_ndo_set_vf_trust
3328 * @netdev: network interface device structure of the pf
3329 * @vf_id: VF identifier
3330 * @setting: trust setting
3332 * Enable or disable VF trust setting
3334 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
3336 struct i40e_netdev_priv *np = netdev_priv(netdev);
3337 struct i40e_pf *pf = np->vsi->back;
3341 /* validate the request */
3342 if (vf_id >= pf->num_alloc_vfs) {
3343 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3347 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3348 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
3352 vf = &pf->vf[vf_id];
3356 if (setting == vf->trusted)
3359 vf->trusted = setting;
3360 i40e_vc_notify_vf_reset(vf);
3361 i40e_reset_vf(vf, false);
3362 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
3363 vf_id, setting ? "" : "un");