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_STAT_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STAT_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_STAT_INIT, &vf->vf_states) &&
141 !test_bit(I40E_VF_STAT_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_STAT_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_STAT_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_STAT_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_STAT_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_STAT_ACTIVE, &vf->vf_states);
1008 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1009 /* Do not notify the client during VF init */
1010 if (vf->pf->num_alloc_vfs)
1011 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1015 /* Tell the VF driver the reset is done. This needs to be done only
1016 * after VF has been fully initialized, because the VF driver may
1017 * request resources immediately after setting this flag.
1019 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
1024 * @vf: pointer to the VF structure
1025 * @flr: VFLR was issued or not
1029 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
1031 struct i40e_pf *pf = vf->pf;
1032 struct i40e_hw *hw = &pf->hw;
1037 /* If VFs have been disabled, there is no need to reset */
1038 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
1041 i40e_trigger_vf_reset(vf, flr);
1043 /* poll VPGEN_VFRSTAT reg to make sure
1044 * that reset is complete
1046 for (i = 0; i < 10; i++) {
1047 /* VF reset requires driver to first reset the VF and then
1048 * poll the status register to make sure that the reset
1049 * completed successfully. Due to internal HW FIFO flushes,
1050 * we must wait 10ms before the register will be valid.
1052 usleep_range(10000, 20000);
1053 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1054 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1061 usleep_range(10000, 20000);
1064 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1066 usleep_range(10000, 20000);
1068 /* On initial reset, we don't have any queues to disable */
1069 if (vf->lan_vsi_idx != 0)
1070 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1072 i40e_cleanup_reset_vf(vf);
1075 clear_bit(__I40E_VF_DISABLE, &pf->state);
1080 * @pf: pointer to the PF structure
1084 void i40e_free_vfs(struct i40e_pf *pf)
1086 struct i40e_hw *hw = &pf->hw;
1087 u32 reg_idx, bit_idx;
1092 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
1093 usleep_range(1000, 2000);
1095 i40e_notify_client_of_vf_enable(pf, 0);
1096 for (i = 0; i < pf->num_alloc_vfs; i++)
1097 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1098 i40e_vsi_stop_rings(pf->vsi[pf->vf[i].lan_vsi_idx]);
1100 /* Disable IOV before freeing resources. This lets any VF drivers
1101 * running in the host get themselves cleaned up before we yank
1102 * the carpet out from underneath their feet.
1104 if (!pci_vfs_assigned(pf->pdev))
1105 pci_disable_sriov(pf->pdev);
1107 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1109 msleep(20); /* let any messages in transit get finished up */
1111 /* free up VF resources */
1112 tmp = pf->num_alloc_vfs;
1113 pf->num_alloc_vfs = 0;
1114 for (i = 0; i < tmp; i++) {
1115 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1116 i40e_free_vf_res(&pf->vf[i]);
1117 /* disable qp mappings */
1118 i40e_disable_vf_mappings(&pf->vf[i]);
1124 /* This check is for when the driver is unloaded while VFs are
1125 * assigned. Setting the number of VFs to 0 through sysfs is caught
1126 * before this function ever gets called.
1128 if (!pci_vfs_assigned(pf->pdev)) {
1129 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1130 * work correctly when SR-IOV gets re-enabled.
1132 for (vf_id = 0; vf_id < tmp; vf_id++) {
1133 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1134 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1135 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1138 clear_bit(__I40E_VF_DISABLE, &pf->state);
1141 #ifdef CONFIG_PCI_IOV
1144 * @pf: pointer to the PF structure
1145 * @num_alloc_vfs: number of VFs to allocate
1147 * allocate VF resources
1149 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1151 struct i40e_vf *vfs;
1154 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1155 i40e_irq_dynamic_disable_icr0(pf);
1157 /* Check to see if we're just allocating resources for extant VFs */
1158 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1159 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1161 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1162 pf->num_alloc_vfs = 0;
1166 /* allocate memory */
1167 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1174 /* apply default profile */
1175 for (i = 0; i < num_alloc_vfs; i++) {
1177 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1180 /* assign default capabilities */
1181 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1182 vfs[i].spoofchk = true;
1183 /* VF resources get allocated during reset */
1184 i40e_reset_vf(&vfs[i], false);
1187 pf->num_alloc_vfs = num_alloc_vfs;
1189 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1195 /* Re-enable interrupt 0. */
1196 i40e_irq_dynamic_enable_icr0(pf, false);
1202 * i40e_pci_sriov_enable
1203 * @pdev: pointer to a pci_dev structure
1204 * @num_vfs: number of VFs to allocate
1206 * Enable or change the number of VFs
1208 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1210 #ifdef CONFIG_PCI_IOV
1211 struct i40e_pf *pf = pci_get_drvdata(pdev);
1212 int pre_existing_vfs = pci_num_vf(pdev);
1215 if (test_bit(__I40E_TESTING, &pf->state)) {
1216 dev_warn(&pdev->dev,
1217 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1222 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1224 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1227 if (num_vfs > pf->num_req_vfs) {
1228 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1229 num_vfs, pf->num_req_vfs);
1234 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1235 err = i40e_alloc_vfs(pf, num_vfs);
1237 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1251 * i40e_pci_sriov_configure
1252 * @pdev: pointer to a pci_dev structure
1253 * @num_vfs: number of VFs to allocate
1255 * Enable or change the number of VFs. Called when the user updates the number
1258 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1260 struct i40e_pf *pf = pci_get_drvdata(pdev);
1263 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1264 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1265 i40e_do_reset_safe(pf,
1266 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1268 return i40e_pci_sriov_enable(pdev, num_vfs);
1271 if (!pci_vfs_assigned(pf->pdev)) {
1273 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1274 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1276 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1282 /***********************virtual channel routines******************/
1285 * i40e_vc_send_msg_to_vf
1286 * @vf: pointer to the VF info
1287 * @v_opcode: virtual channel opcode
1288 * @v_retval: virtual channel return value
1289 * @msg: pointer to the msg buffer
1290 * @msglen: msg length
1294 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1295 u32 v_retval, u8 *msg, u16 msglen)
1302 /* validate the request */
1303 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1308 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1310 /* single place to detect unsuccessful return values */
1312 vf->num_invalid_msgs++;
1313 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1314 vf->vf_id, v_opcode, v_retval);
1315 if (vf->num_invalid_msgs >
1316 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1317 dev_err(&pf->pdev->dev,
1318 "Number of invalid messages exceeded for VF %d\n",
1320 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1321 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1324 vf->num_valid_msgs++;
1325 /* reset the invalid counter, if a valid message is received. */
1326 vf->num_invalid_msgs = 0;
1329 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1332 dev_info(&pf->pdev->dev,
1333 "Unable to send the message to VF %d aq_err %d\n",
1334 vf->vf_id, pf->hw.aq.asq_last_status);
1342 * i40e_vc_send_resp_to_vf
1343 * @vf: pointer to the VF info
1344 * @opcode: operation code
1345 * @retval: return value
1347 * send resp msg to VF
1349 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1350 enum i40e_virtchnl_ops opcode,
1353 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1357 * i40e_vc_get_version_msg
1358 * @vf: pointer to the VF info
1360 * called from the VF to request the API version used by the PF
1362 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1364 struct i40e_virtchnl_version_info info = {
1365 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1368 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1369 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1371 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1372 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1373 I40E_SUCCESS, (u8 *)&info,
1375 i40e_virtchnl_version_info));
1379 * i40e_vc_get_vf_resources_msg
1380 * @vf: pointer to the VF info
1381 * @msg: pointer to the msg buffer
1382 * @msglen: msg length
1384 * called from the VF to request its resources
1386 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1388 struct i40e_virtchnl_vf_resource *vfres = NULL;
1389 struct i40e_pf *pf = vf->pf;
1390 i40e_status aq_ret = 0;
1391 struct i40e_vsi *vsi;
1396 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1397 aq_ret = I40E_ERR_PARAM;
1401 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1402 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1404 vfres = kzalloc(len, GFP_KERNEL);
1406 aq_ret = I40E_ERR_NO_MEMORY;
1411 vf->driver_caps = *(u32 *)msg;
1413 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1414 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1415 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1417 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1418 vsi = pf->vsi[vf->lan_vsi_idx];
1419 if (!vsi->info.pvid)
1420 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1422 if (i40e_vf_client_capable(pf, vf->vf_id) &&
1423 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
1424 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
1425 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states);
1428 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1429 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF;
1431 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
1432 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1433 vfres->vf_offload_flags |=
1434 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1436 vfres->vf_offload_flags |=
1437 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1440 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1441 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1442 vfres->vf_offload_flags |=
1443 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1446 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP)
1447 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP;
1449 if ((pf->flags & I40E_FLAG_OUTER_UDP_CSUM_CAPABLE) &&
1450 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1451 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1453 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1454 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1455 dev_err(&pf->pdev->dev,
1456 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1458 ret = I40E_ERR_PARAM;
1461 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1464 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1465 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1466 vfres->vf_offload_flags |=
1467 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1470 vfres->num_vsis = num_vsis;
1471 vfres->num_queue_pairs = vf->num_queue_pairs;
1472 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1473 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
1474 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
1476 if (vf->lan_vsi_idx) {
1477 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
1478 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV;
1479 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1480 /* VFs only use TC 0 */
1481 vfres->vsi_res[0].qset_handle
1482 = le16_to_cpu(vsi->info.qs_handle[0]);
1483 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
1484 vf->default_lan_addr.addr);
1486 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1489 /* send the response back to the VF */
1490 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1491 aq_ret, (u8 *)vfres, len);
1498 * i40e_vc_reset_vf_msg
1499 * @vf: pointer to the VF info
1500 * @msg: pointer to the msg buffer
1501 * @msglen: msg length
1503 * called from the VF to reset itself,
1504 * unlike other virtchnl messages, PF driver
1505 * doesn't send the response back to the VF
1507 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1509 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1510 i40e_reset_vf(vf, false);
1514 * i40e_getnum_vf_vsi_vlan_filters
1515 * @vsi: pointer to the vsi
1517 * called to get the number of VLANs offloaded on this VF
1519 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1521 struct i40e_mac_filter *f;
1522 int num_vlans = 0, bkt;
1524 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1525 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1533 * i40e_vc_config_promiscuous_mode_msg
1534 * @vf: pointer to the VF info
1535 * @msg: pointer to the msg buffer
1536 * @msglen: msg length
1538 * called from the VF to configure the promiscuous mode of
1541 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1542 u8 *msg, u16 msglen)
1544 struct i40e_virtchnl_promisc_info *info =
1545 (struct i40e_virtchnl_promisc_info *)msg;
1546 struct i40e_pf *pf = vf->pf;
1547 struct i40e_hw *hw = &pf->hw;
1548 struct i40e_mac_filter *f;
1549 i40e_status aq_ret = 0;
1550 bool allmulti = false;
1551 struct i40e_vsi *vsi;
1552 bool alluni = false;
1556 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1557 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1558 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1560 aq_ret = I40E_ERR_PARAM;
1563 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1564 dev_err(&pf->pdev->dev,
1565 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1567 /* Lie to the VF on purpose. */
1571 /* Multicast promiscuous handling*/
1572 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1575 if (vf->port_vlan_id) {
1576 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
1580 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1581 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1582 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1584 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
1589 aq_err = pf->hw.aq.asq_last_status;
1591 dev_err(&pf->pdev->dev,
1592 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
1594 i40e_stat_str(&pf->hw, aq_ret),
1595 i40e_aq_str(&pf->hw, aq_err));
1600 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1602 aq_err = pf->hw.aq.asq_last_status;
1604 dev_err(&pf->pdev->dev,
1605 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1607 i40e_stat_str(&pf->hw, aq_ret),
1608 i40e_aq_str(&pf->hw, aq_err));
1614 dev_info(&pf->pdev->dev,
1615 "VF %d successfully set multicast promiscuous mode\n",
1618 set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
1620 clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
1623 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1625 if (vf->port_vlan_id) {
1626 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
1630 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1631 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1633 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) {
1635 i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
1640 aq_err = pf->hw.aq.asq_last_status;
1643 dev_err(&pf->pdev->dev,
1644 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
1646 i40e_stat_str(&pf->hw, aq_ret),
1647 i40e_aq_str(&pf->hw, aq_err));
1650 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid,
1653 aq_err = pf->hw.aq.asq_last_status;
1655 dev_err(&pf->pdev->dev,
1656 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
1657 vf->vf_id, info->flags,
1658 i40e_stat_str(&pf->hw, aq_ret),
1659 i40e_aq_str(&pf->hw, aq_err));
1665 dev_info(&pf->pdev->dev,
1666 "VF %d successfully set unicast promiscuous mode\n",
1669 set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
1671 clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
1675 /* send the response to the VF */
1676 return i40e_vc_send_resp_to_vf(vf,
1677 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1682 * i40e_vc_config_queues_msg
1683 * @vf: pointer to the VF info
1684 * @msg: pointer to the msg buffer
1685 * @msglen: msg length
1687 * called from the VF to configure the rx/tx
1690 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1692 struct i40e_virtchnl_vsi_queue_config_info *qci =
1693 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1694 struct i40e_virtchnl_queue_pair_info *qpi;
1695 struct i40e_pf *pf = vf->pf;
1696 u16 vsi_id, vsi_queue_id;
1697 i40e_status aq_ret = 0;
1700 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1701 aq_ret = I40E_ERR_PARAM;
1705 vsi_id = qci->vsi_id;
1706 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1707 aq_ret = I40E_ERR_PARAM;
1710 for (i = 0; i < qci->num_queue_pairs; i++) {
1711 qpi = &qci->qpair[i];
1712 vsi_queue_id = qpi->txq.queue_id;
1713 if ((qpi->txq.vsi_id != vsi_id) ||
1714 (qpi->rxq.vsi_id != vsi_id) ||
1715 (qpi->rxq.queue_id != vsi_queue_id) ||
1716 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1717 aq_ret = I40E_ERR_PARAM;
1721 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1723 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1725 aq_ret = I40E_ERR_PARAM;
1729 /* set vsi num_queue_pairs in use to num configured by VF */
1730 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1733 /* send the response to the VF */
1734 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1739 * i40e_vc_config_irq_map_msg
1740 * @vf: pointer to the VF info
1741 * @msg: pointer to the msg buffer
1742 * @msglen: msg length
1744 * called from the VF to configure the irq to
1747 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1749 struct i40e_virtchnl_irq_map_info *irqmap_info =
1750 (struct i40e_virtchnl_irq_map_info *)msg;
1751 struct i40e_virtchnl_vector_map *map;
1752 u16 vsi_id, vsi_queue_id, vector_id;
1753 i40e_status aq_ret = 0;
1754 unsigned long tempmap;
1757 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1758 aq_ret = I40E_ERR_PARAM;
1762 for (i = 0; i < irqmap_info->num_vectors; i++) {
1763 map = &irqmap_info->vecmap[i];
1765 vector_id = map->vector_id;
1766 vsi_id = map->vsi_id;
1767 /* validate msg params */
1768 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1769 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1770 aq_ret = I40E_ERR_PARAM;
1774 /* lookout for the invalid queue index */
1775 tempmap = map->rxq_map;
1776 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1777 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1779 aq_ret = I40E_ERR_PARAM;
1784 tempmap = map->txq_map;
1785 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1786 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1788 aq_ret = I40E_ERR_PARAM;
1793 i40e_config_irq_link_list(vf, vsi_id, map);
1796 /* send the response to the VF */
1797 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1802 * i40e_vc_enable_queues_msg
1803 * @vf: pointer to the VF info
1804 * @msg: pointer to the msg buffer
1805 * @msglen: msg length
1807 * called from the VF to enable all or specific queue(s)
1809 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1811 struct i40e_virtchnl_queue_select *vqs =
1812 (struct i40e_virtchnl_queue_select *)msg;
1813 struct i40e_pf *pf = vf->pf;
1814 u16 vsi_id = vqs->vsi_id;
1815 i40e_status aq_ret = 0;
1817 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1818 aq_ret = I40E_ERR_PARAM;
1822 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1823 aq_ret = I40E_ERR_PARAM;
1827 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1828 aq_ret = I40E_ERR_PARAM;
1832 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx]))
1833 aq_ret = I40E_ERR_TIMEOUT;
1835 /* send the response to the VF */
1836 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1841 * i40e_vc_disable_queues_msg
1842 * @vf: pointer to the VF info
1843 * @msg: pointer to the msg buffer
1844 * @msglen: msg length
1846 * called from the VF to disable all or specific
1849 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1851 struct i40e_virtchnl_queue_select *vqs =
1852 (struct i40e_virtchnl_queue_select *)msg;
1853 struct i40e_pf *pf = vf->pf;
1854 i40e_status aq_ret = 0;
1856 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1857 aq_ret = I40E_ERR_PARAM;
1861 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1862 aq_ret = I40E_ERR_PARAM;
1866 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1867 aq_ret = I40E_ERR_PARAM;
1871 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1874 /* send the response to the VF */
1875 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1880 * i40e_vc_get_stats_msg
1881 * @vf: pointer to the VF info
1882 * @msg: pointer to the msg buffer
1883 * @msglen: msg length
1885 * called from the VF to get vsi stats
1887 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1889 struct i40e_virtchnl_queue_select *vqs =
1890 (struct i40e_virtchnl_queue_select *)msg;
1891 struct i40e_pf *pf = vf->pf;
1892 struct i40e_eth_stats stats;
1893 i40e_status aq_ret = 0;
1894 struct i40e_vsi *vsi;
1896 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1898 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1899 aq_ret = I40E_ERR_PARAM;
1903 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1904 aq_ret = I40E_ERR_PARAM;
1908 vsi = pf->vsi[vf->lan_vsi_idx];
1910 aq_ret = I40E_ERR_PARAM;
1913 i40e_update_eth_stats(vsi);
1914 stats = vsi->eth_stats;
1917 /* send the response back to the VF */
1918 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1919 (u8 *)&stats, sizeof(stats));
1922 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */
1923 #define I40E_VC_MAX_MAC_ADDR_PER_VF 12
1924 #define I40E_VC_MAX_VLAN_PER_VF 8
1927 * i40e_check_vf_permission
1928 * @vf: pointer to the VF info
1929 * @macaddr: pointer to the MAC Address being checked
1931 * Check if the VF has permission to add or delete unicast MAC address
1932 * filters and return error code -EPERM if not. Then check if the
1933 * address filter requested is broadcast or zero and if so return
1934 * an invalid MAC address error code.
1936 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1938 struct i40e_pf *pf = vf->pf;
1941 if (is_broadcast_ether_addr(macaddr) ||
1942 is_zero_ether_addr(macaddr)) {
1943 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1944 ret = I40E_ERR_INVALID_MAC_ADDR;
1945 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1946 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
1947 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1948 /* If the host VMM administrator has set the VF MAC address
1949 * administratively via the ndo_set_vf_mac command then deny
1950 * permission to the VF to add or delete unicast MAC addresses.
1951 * Unless the VF is privileged and then it can do whatever.
1952 * The VF may request to set the MAC address filter already
1953 * assigned to it so do not return an error in that case.
1955 dev_err(&pf->pdev->dev,
1956 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n");
1958 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) &&
1959 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1960 dev_err(&pf->pdev->dev,
1961 "VF is not trusted, switch the VF to trusted to add more functionality\n");
1968 * i40e_vc_add_mac_addr_msg
1969 * @vf: pointer to the VF info
1970 * @msg: pointer to the msg buffer
1971 * @msglen: msg length
1973 * add guest mac address filter
1975 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1977 struct i40e_virtchnl_ether_addr_list *al =
1978 (struct i40e_virtchnl_ether_addr_list *)msg;
1979 struct i40e_pf *pf = vf->pf;
1980 struct i40e_vsi *vsi = NULL;
1981 u16 vsi_id = al->vsi_id;
1982 i40e_status ret = 0;
1985 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1986 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1987 ret = I40E_ERR_PARAM;
1991 for (i = 0; i < al->num_elements; i++) {
1992 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1996 vsi = pf->vsi[vf->lan_vsi_idx];
1998 /* Lock once, because all function inside for loop accesses VSI's
1999 * MAC filter list which needs to be protected using same lock.
2001 spin_lock_bh(&vsi->mac_filter_hash_lock);
2003 /* add new addresses to the list */
2004 for (i = 0; i < al->num_elements; i++) {
2005 struct i40e_mac_filter *f;
2007 f = i40e_find_mac(vsi, al->list[i].addr);
2009 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2012 dev_err(&pf->pdev->dev,
2013 "Unable to add MAC filter %pM for VF %d\n",
2014 al->list[i].addr, vf->vf_id);
2015 ret = I40E_ERR_PARAM;
2016 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2022 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2024 /* program the updated filter list */
2025 ret = i40e_sync_vsi_filters(vsi);
2027 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2031 /* send the response to the VF */
2032 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
2037 * i40e_vc_del_mac_addr_msg
2038 * @vf: pointer to the VF info
2039 * @msg: pointer to the msg buffer
2040 * @msglen: msg length
2042 * remove guest mac address filter
2044 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2046 struct i40e_virtchnl_ether_addr_list *al =
2047 (struct i40e_virtchnl_ether_addr_list *)msg;
2048 struct i40e_pf *pf = vf->pf;
2049 struct i40e_vsi *vsi = NULL;
2050 u16 vsi_id = al->vsi_id;
2051 i40e_status ret = 0;
2054 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2055 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2056 ret = I40E_ERR_PARAM;
2060 for (i = 0; i < al->num_elements; i++) {
2061 if (is_broadcast_ether_addr(al->list[i].addr) ||
2062 is_zero_ether_addr(al->list[i].addr)) {
2063 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2064 al->list[i].addr, vf->vf_id);
2065 ret = I40E_ERR_INVALID_MAC_ADDR;
2069 vsi = pf->vsi[vf->lan_vsi_idx];
2071 spin_lock_bh(&vsi->mac_filter_hash_lock);
2072 /* delete addresses from the list */
2073 for (i = 0; i < al->num_elements; i++)
2074 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2075 ret = I40E_ERR_INVALID_MAC_ADDR;
2076 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2082 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2084 /* program the updated filter list */
2085 ret = i40e_sync_vsi_filters(vsi);
2087 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2091 /* send the response to the VF */
2092 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
2097 * i40e_vc_add_vlan_msg
2098 * @vf: pointer to the VF info
2099 * @msg: pointer to the msg buffer
2100 * @msglen: msg length
2102 * program guest vlan id
2104 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2106 struct i40e_virtchnl_vlan_filter_list *vfl =
2107 (struct i40e_virtchnl_vlan_filter_list *)msg;
2108 struct i40e_pf *pf = vf->pf;
2109 struct i40e_vsi *vsi = NULL;
2110 u16 vsi_id = vfl->vsi_id;
2111 i40e_status aq_ret = 0;
2114 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2115 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2116 dev_err(&pf->pdev->dev,
2117 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2120 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2121 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2122 aq_ret = I40E_ERR_PARAM;
2126 for (i = 0; i < vfl->num_elements; i++) {
2127 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2128 aq_ret = I40E_ERR_PARAM;
2129 dev_err(&pf->pdev->dev,
2130 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2134 vsi = pf->vsi[vf->lan_vsi_idx];
2135 if (vsi->info.pvid) {
2136 aq_ret = I40E_ERR_PARAM;
2140 i40e_vlan_stripping_enable(vsi);
2141 for (i = 0; i < vfl->num_elements; i++) {
2142 /* add new VLAN filter */
2143 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2147 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
2148 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2152 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
2153 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2159 dev_err(&pf->pdev->dev,
2160 "Unable to add VLAN filter %d for VF %d, error %d\n",
2161 vfl->vlan_id[i], vf->vf_id, ret);
2165 /* send the response to the VF */
2166 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
2170 * i40e_vc_remove_vlan_msg
2171 * @vf: pointer to the VF info
2172 * @msg: pointer to the msg buffer
2173 * @msglen: msg length
2175 * remove programmed guest vlan id
2177 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2179 struct i40e_virtchnl_vlan_filter_list *vfl =
2180 (struct i40e_virtchnl_vlan_filter_list *)msg;
2181 struct i40e_pf *pf = vf->pf;
2182 struct i40e_vsi *vsi = NULL;
2183 u16 vsi_id = vfl->vsi_id;
2184 i40e_status aq_ret = 0;
2187 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2188 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2189 aq_ret = I40E_ERR_PARAM;
2193 for (i = 0; i < vfl->num_elements; i++) {
2194 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2195 aq_ret = I40E_ERR_PARAM;
2200 vsi = pf->vsi[vf->lan_vsi_idx];
2201 if (vsi->info.pvid) {
2202 aq_ret = I40E_ERR_PARAM;
2206 for (i = 0; i < vfl->num_elements; i++) {
2207 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2210 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
2211 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2215 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
2216 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2223 /* send the response to the VF */
2224 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
2229 * @vf: pointer to the VF info
2230 * @msg: pointer to the msg buffer
2231 * @msglen: msg length
2233 * called from the VF for the iwarp msgs
2235 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2237 struct i40e_pf *pf = vf->pf;
2238 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2239 i40e_status aq_ret = 0;
2241 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2242 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2243 aq_ret = I40E_ERR_PARAM;
2247 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2251 /* send the response to the VF */
2252 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
2257 * i40e_vc_iwarp_qvmap_msg
2258 * @vf: pointer to the VF info
2259 * @msg: pointer to the msg buffer
2260 * @msglen: msg length
2261 * @config: config qvmap or release it
2263 * called from the VF for the iwarp msgs
2265 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2268 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
2269 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2270 i40e_status aq_ret = 0;
2272 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2273 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2274 aq_ret = I40E_ERR_PARAM;
2279 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2280 aq_ret = I40E_ERR_PARAM;
2282 i40e_release_iwarp_qvlist(vf);
2286 /* send the response to the VF */
2287 return i40e_vc_send_resp_to_vf(vf,
2288 config ? I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2289 I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2294 * i40e_vc_config_rss_key
2295 * @vf: pointer to the VF info
2296 * @msg: pointer to the msg buffer
2297 * @msglen: msg length
2299 * Configure the VF's RSS key
2301 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen)
2303 struct i40e_virtchnl_rss_key *vrk =
2304 (struct i40e_virtchnl_rss_key *)msg;
2305 struct i40e_pf *pf = vf->pf;
2306 struct i40e_vsi *vsi = NULL;
2307 u16 vsi_id = vrk->vsi_id;
2308 i40e_status aq_ret = 0;
2310 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2311 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2312 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2313 aq_ret = I40E_ERR_PARAM;
2317 vsi = pf->vsi[vf->lan_vsi_idx];
2318 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
2320 /* send the response to the VF */
2321 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY,
2326 * i40e_vc_config_rss_lut
2327 * @vf: pointer to the VF info
2328 * @msg: pointer to the msg buffer
2329 * @msglen: msg length
2331 * Configure the VF's RSS LUT
2333 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen)
2335 struct i40e_virtchnl_rss_lut *vrl =
2336 (struct i40e_virtchnl_rss_lut *)msg;
2337 struct i40e_pf *pf = vf->pf;
2338 struct i40e_vsi *vsi = NULL;
2339 u16 vsi_id = vrl->vsi_id;
2340 i40e_status aq_ret = 0;
2342 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2343 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2344 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
2345 aq_ret = I40E_ERR_PARAM;
2349 vsi = pf->vsi[vf->lan_vsi_idx];
2350 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
2351 /* send the response to the VF */
2353 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT,
2358 * i40e_vc_get_rss_hena
2359 * @vf: pointer to the VF info
2360 * @msg: pointer to the msg buffer
2361 * @msglen: msg length
2363 * Return the RSS HENA bits allowed by the hardware
2365 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2367 struct i40e_virtchnl_rss_hena *vrh = NULL;
2368 struct i40e_pf *pf = vf->pf;
2369 i40e_status aq_ret = 0;
2372 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
2373 aq_ret = I40E_ERR_PARAM;
2376 len = sizeof(struct i40e_virtchnl_rss_hena);
2378 vrh = kzalloc(len, GFP_KERNEL);
2380 aq_ret = I40E_ERR_NO_MEMORY;
2384 vrh->hena = i40e_pf_get_default_rss_hena(pf);
2386 /* send the response back to the VF */
2387 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS,
2388 aq_ret, (u8 *)vrh, len);
2394 * i40e_vc_set_rss_hena
2395 * @vf: pointer to the VF info
2396 * @msg: pointer to the msg buffer
2397 * @msglen: msg length
2399 * Set the RSS HENA bits for the VF
2401 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2403 struct i40e_virtchnl_rss_hena *vrh =
2404 (struct i40e_virtchnl_rss_hena *)msg;
2405 struct i40e_pf *pf = vf->pf;
2406 struct i40e_hw *hw = &pf->hw;
2407 i40e_status aq_ret = 0;
2409 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
2410 aq_ret = I40E_ERR_PARAM;
2413 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
2414 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
2415 (u32)(vrh->hena >> 32));
2417 /* send the response to the VF */
2419 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA,
2424 * i40e_vc_validate_vf_msg
2425 * @vf: pointer to the VF info
2426 * @msg: pointer to the msg buffer
2427 * @msglen: msg length
2428 * @msghndl: msg handle
2432 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
2433 u32 v_retval, u8 *msg, u16 msglen)
2435 bool err_msg_format = false;
2438 /* Check if VF is disabled. */
2439 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
2440 return I40E_ERR_PARAM;
2442 /* Validate message length. */
2444 case I40E_VIRTCHNL_OP_VERSION:
2445 valid_len = sizeof(struct i40e_virtchnl_version_info);
2447 case I40E_VIRTCHNL_OP_RESET_VF:
2449 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2451 valid_len = sizeof(u32);
2453 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
2454 valid_len = sizeof(struct i40e_virtchnl_txq_info);
2456 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
2457 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
2459 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2460 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
2461 if (msglen >= valid_len) {
2462 struct i40e_virtchnl_vsi_queue_config_info *vqc =
2463 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
2464 valid_len += (vqc->num_queue_pairs *
2466 i40e_virtchnl_queue_pair_info));
2467 if (vqc->num_queue_pairs == 0)
2468 err_msg_format = true;
2471 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2472 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
2473 if (msglen >= valid_len) {
2474 struct i40e_virtchnl_irq_map_info *vimi =
2475 (struct i40e_virtchnl_irq_map_info *)msg;
2476 valid_len += (vimi->num_vectors *
2477 sizeof(struct i40e_virtchnl_vector_map));
2478 if (vimi->num_vectors == 0)
2479 err_msg_format = true;
2482 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2483 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2484 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2486 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2487 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2488 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
2489 if (msglen >= valid_len) {
2490 struct i40e_virtchnl_ether_addr_list *veal =
2491 (struct i40e_virtchnl_ether_addr_list *)msg;
2492 valid_len += veal->num_elements *
2493 sizeof(struct i40e_virtchnl_ether_addr);
2494 if (veal->num_elements == 0)
2495 err_msg_format = true;
2498 case I40E_VIRTCHNL_OP_ADD_VLAN:
2499 case I40E_VIRTCHNL_OP_DEL_VLAN:
2500 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
2501 if (msglen >= valid_len) {
2502 struct i40e_virtchnl_vlan_filter_list *vfl =
2503 (struct i40e_virtchnl_vlan_filter_list *)msg;
2504 valid_len += vfl->num_elements * sizeof(u16);
2505 if (vfl->num_elements == 0)
2506 err_msg_format = true;
2509 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2510 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
2512 case I40E_VIRTCHNL_OP_GET_STATS:
2513 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2515 case I40E_VIRTCHNL_OP_IWARP:
2516 /* These messages are opaque to us and will be validated in
2517 * the RDMA client code. We just need to check for nonzero
2518 * length. The firmware will enforce max length restrictions.
2523 err_msg_format = true;
2525 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2528 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2529 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
2530 if (msglen >= valid_len) {
2531 struct i40e_virtchnl_iwarp_qvlist_info *qv =
2532 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2533 if (qv->num_vectors == 0) {
2534 err_msg_format = true;
2537 valid_len += ((qv->num_vectors - 1) *
2538 sizeof(struct i40e_virtchnl_iwarp_qv_info));
2541 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2542 valid_len = sizeof(struct i40e_virtchnl_rss_key);
2543 if (msglen >= valid_len) {
2544 struct i40e_virtchnl_rss_key *vrk =
2545 (struct i40e_virtchnl_rss_key *)msg;
2546 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
2547 err_msg_format = true;
2550 valid_len += vrk->key_len - 1;
2553 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2554 valid_len = sizeof(struct i40e_virtchnl_rss_lut);
2555 if (msglen >= valid_len) {
2556 struct i40e_virtchnl_rss_lut *vrl =
2557 (struct i40e_virtchnl_rss_lut *)msg;
2558 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
2559 err_msg_format = true;
2562 valid_len += vrl->lut_entries - 1;
2565 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2567 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2568 valid_len = sizeof(struct i40e_virtchnl_rss_hena);
2570 /* These are always errors coming from the VF. */
2571 case I40E_VIRTCHNL_OP_EVENT:
2572 case I40E_VIRTCHNL_OP_UNKNOWN:
2576 /* few more checks */
2577 if ((valid_len != msglen) || (err_msg_format)) {
2578 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2586 * i40e_vc_process_vf_msg
2587 * @pf: pointer to the PF structure
2588 * @vf_id: source VF id
2589 * @msg: pointer to the msg buffer
2590 * @msglen: msg length
2591 * @msghndl: msg handle
2593 * called from the common aeq/arq handler to
2594 * process request from VF
2596 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
2597 u32 v_retval, u8 *msg, u16 msglen)
2599 struct i40e_hw *hw = &pf->hw;
2600 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
2604 pf->vf_aq_requests++;
2605 if (local_vf_id >= pf->num_alloc_vfs)
2607 vf = &(pf->vf[local_vf_id]);
2608 /* perform basic checks on the msg */
2609 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
2612 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2613 local_vf_id, v_opcode, msglen);
2618 case I40E_VIRTCHNL_OP_VERSION:
2619 ret = i40e_vc_get_version_msg(vf, msg);
2621 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2622 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2624 case I40E_VIRTCHNL_OP_RESET_VF:
2625 i40e_vc_reset_vf_msg(vf);
2628 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2629 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2631 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2632 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2634 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2635 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2637 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2638 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2639 i40e_vc_notify_vf_link_state(vf);
2641 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2642 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2644 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2645 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2647 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2648 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2650 case I40E_VIRTCHNL_OP_ADD_VLAN:
2651 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2653 case I40E_VIRTCHNL_OP_DEL_VLAN:
2654 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2656 case I40E_VIRTCHNL_OP_GET_STATS:
2657 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2659 case I40E_VIRTCHNL_OP_IWARP:
2660 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2662 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2663 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2665 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2666 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2668 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2669 ret = i40e_vc_config_rss_key(vf, msg, msglen);
2671 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2672 ret = i40e_vc_config_rss_lut(vf, msg, msglen);
2674 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2675 ret = i40e_vc_get_rss_hena(vf, msg, msglen);
2677 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2678 ret = i40e_vc_set_rss_hena(vf, msg, msglen);
2681 case I40E_VIRTCHNL_OP_UNKNOWN:
2683 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2684 v_opcode, local_vf_id);
2685 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2686 I40E_ERR_NOT_IMPLEMENTED);
2694 * i40e_vc_process_vflr_event
2695 * @pf: pointer to the PF structure
2697 * called from the vlfr irq handler to
2698 * free up VF resources and state variables
2700 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2702 struct i40e_hw *hw = &pf->hw;
2703 u32 reg, reg_idx, bit_idx;
2707 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2710 /* Re-enable the VFLR interrupt cause here, before looking for which
2711 * VF got reset. Otherwise, if another VF gets a reset while the
2712 * first one is being processed, that interrupt will be lost, and
2713 * that VF will be stuck in reset forever.
2715 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2716 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2717 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2720 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2721 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2722 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2723 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2724 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2725 vf = &pf->vf[vf_id];
2726 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2727 if (reg & BIT(bit_idx))
2728 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
2729 i40e_reset_vf(vf, true);
2736 * i40e_ndo_set_vf_mac
2737 * @netdev: network interface device structure
2738 * @vf_id: VF identifier
2741 * program VF mac address
2743 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2745 struct i40e_netdev_priv *np = netdev_priv(netdev);
2746 struct i40e_vsi *vsi = np->vsi;
2747 struct i40e_pf *pf = vsi->back;
2748 struct i40e_mac_filter *f;
2753 /* validate the request */
2754 if (vf_id >= pf->num_alloc_vfs) {
2755 dev_err(&pf->pdev->dev,
2756 "Invalid VF Identifier %d\n", vf_id);
2761 vf = &(pf->vf[vf_id]);
2762 vsi = pf->vsi[vf->lan_vsi_idx];
2763 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2764 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2770 if (is_multicast_ether_addr(mac)) {
2771 dev_err(&pf->pdev->dev,
2772 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2777 /* Lock once because below invoked function add/del_filter requires
2778 * mac_filter_hash_lock to be held
2780 spin_lock_bh(&vsi->mac_filter_hash_lock);
2782 /* delete the temporary mac address */
2783 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2784 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2786 /* Delete all the filters for this VSI - we're going to kill it
2789 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist)
2790 __i40e_del_filter(vsi, f);
2792 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2794 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2795 /* program mac filter */
2796 if (i40e_sync_vsi_filters(vsi)) {
2797 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2801 ether_addr_copy(vf->default_lan_addr.addr, mac);
2802 vf->pf_set_mac = true;
2803 /* Force the VF driver stop so it has to reload with new MAC address */
2804 i40e_vc_disable_vf(pf, vf);
2805 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2812 * i40e_ndo_set_vf_port_vlan
2813 * @netdev: network interface device structure
2814 * @vf_id: VF identifier
2815 * @vlan_id: mac address
2816 * @qos: priority setting
2817 * @vlan_proto: vlan protocol
2819 * program VF vlan id and/or qos
2821 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
2822 u16 vlan_id, u8 qos, __be16 vlan_proto)
2824 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2825 struct i40e_netdev_priv *np = netdev_priv(netdev);
2826 struct i40e_pf *pf = np->vsi->back;
2827 struct i40e_vsi *vsi;
2831 /* validate the request */
2832 if (vf_id >= pf->num_alloc_vfs) {
2833 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2838 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2839 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2844 if (vlan_proto != htons(ETH_P_8021Q)) {
2845 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
2846 ret = -EPROTONOSUPPORT;
2850 vf = &(pf->vf[vf_id]);
2851 vsi = pf->vsi[vf->lan_vsi_idx];
2852 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2853 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2859 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2860 /* duplicate request, so just return success */
2863 /* Locked once because multiple functions below iterate list */
2864 spin_lock_bh(&vsi->mac_filter_hash_lock);
2866 if (le16_to_cpu(vsi->info.pvid) == 0 && i40e_is_vsi_in_vlan(vsi)) {
2867 dev_err(&pf->pdev->dev,
2868 "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",
2870 /* Administrator Error - knock the VF offline until he does
2871 * the right thing by reconfiguring his network correctly
2872 * and then reloading the VF driver.
2874 i40e_vc_disable_vf(pf, vf);
2875 /* During reset the VF got a new VSI, so refresh the pointer. */
2876 vsi = pf->vsi[vf->lan_vsi_idx];
2879 /* Check for condition where there was already a port VLAN ID
2880 * filter set and now it is being deleted by setting it to zero.
2881 * Additionally check for the condition where there was a port
2882 * VLAN but now there is a new and different port VLAN being set.
2883 * Before deleting all the old VLAN filters we must add new ones
2884 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2885 * MAC addresses deleted.
2887 if ((!(vlan_id || qos) ||
2888 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2890 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
2892 dev_info(&vsi->back->pdev->dev,
2893 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2894 vsi->back->hw.aq.asq_last_status);
2895 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2900 if (vsi->info.pvid) {
2901 /* remove all filters on the old VLAN */
2902 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
2907 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2909 i40e_vsi_remove_pvid(vsi);
2912 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2913 vlan_id, qos, vf_id);
2915 /* add new VLAN filter for each MAC */
2916 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
2918 dev_info(&vsi->back->pdev->dev,
2919 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2920 vsi->back->hw.aq.asq_last_status);
2921 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2925 /* remove the previously added non-VLAN MAC filters */
2926 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
2929 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2931 /* Schedule the worker thread to take care of applying changes */
2932 i40e_service_event_schedule(vsi->back);
2935 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2939 /* The Port VLAN needs to be saved across resets the same as the
2940 * default LAN MAC address.
2942 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2949 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2950 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2952 * i40e_ndo_set_vf_bw
2953 * @netdev: network interface device structure
2954 * @vf_id: VF identifier
2957 * configure VF Tx rate
2959 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2962 struct i40e_netdev_priv *np = netdev_priv(netdev);
2963 struct i40e_pf *pf = np->vsi->back;
2964 struct i40e_vsi *vsi;
2969 /* validate the request */
2970 if (vf_id >= pf->num_alloc_vfs) {
2971 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2977 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2978 min_tx_rate, vf_id);
2982 vf = &(pf->vf[vf_id]);
2983 vsi = pf->vsi[vf->lan_vsi_idx];
2984 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2985 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2991 switch (pf->hw.phy.link_info.link_speed) {
2992 case I40E_LINK_SPEED_40GB:
2995 case I40E_LINK_SPEED_25GB:
2998 case I40E_LINK_SPEED_20GB:
3001 case I40E_LINK_SPEED_10GB:
3004 case I40E_LINK_SPEED_1GB:
3011 if (max_tx_rate > speed) {
3012 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.\n",
3013 max_tx_rate, vf->vf_id);
3018 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
3019 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
3023 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
3024 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
3025 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
3026 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
3028 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
3033 vf->tx_rate = max_tx_rate;
3039 * i40e_ndo_get_vf_config
3040 * @netdev: network interface device structure
3041 * @vf_id: VF identifier
3042 * @ivi: VF configuration structure
3044 * return VF configuration
3046 int i40e_ndo_get_vf_config(struct net_device *netdev,
3047 int vf_id, struct ifla_vf_info *ivi)
3049 struct i40e_netdev_priv *np = netdev_priv(netdev);
3050 struct i40e_vsi *vsi = np->vsi;
3051 struct i40e_pf *pf = vsi->back;
3055 /* validate the request */
3056 if (vf_id >= pf->num_alloc_vfs) {
3057 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3062 vf = &(pf->vf[vf_id]);
3063 /* first vsi is always the LAN vsi */
3064 vsi = pf->vsi[vf->lan_vsi_idx];
3065 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
3066 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3074 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
3076 ivi->max_tx_rate = vf->tx_rate;
3077 ivi->min_tx_rate = 0;
3078 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
3079 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
3080 I40E_VLAN_PRIORITY_SHIFT;
3081 if (vf->link_forced == false)
3082 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
3083 else if (vf->link_up == true)
3084 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
3086 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
3087 ivi->spoofchk = vf->spoofchk;
3088 ivi->trusted = vf->trusted;
3096 * i40e_ndo_set_vf_link_state
3097 * @netdev: network interface device structure
3098 * @vf_id: VF identifier
3099 * @link: required link state
3101 * Set the link state of a specified VF, regardless of physical link state
3103 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
3105 struct i40e_netdev_priv *np = netdev_priv(netdev);
3106 struct i40e_pf *pf = np->vsi->back;
3107 struct i40e_virtchnl_pf_event pfe;
3108 struct i40e_hw *hw = &pf->hw;
3113 /* validate the request */
3114 if (vf_id >= pf->num_alloc_vfs) {
3115 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3120 vf = &pf->vf[vf_id];
3121 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
3123 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
3124 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
3127 case IFLA_VF_LINK_STATE_AUTO:
3128 vf->link_forced = false;
3129 pfe.event_data.link_event.link_status =
3130 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
3131 pfe.event_data.link_event.link_speed =
3132 pf->hw.phy.link_info.link_speed;
3134 case IFLA_VF_LINK_STATE_ENABLE:
3135 vf->link_forced = true;
3137 pfe.event_data.link_event.link_status = true;
3138 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
3140 case IFLA_VF_LINK_STATE_DISABLE:
3141 vf->link_forced = true;
3142 vf->link_up = false;
3143 pfe.event_data.link_event.link_status = false;
3144 pfe.event_data.link_event.link_speed = 0;
3150 /* Notify the VF of its new link state */
3151 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
3152 0, (u8 *)&pfe, sizeof(pfe), NULL);
3159 * i40e_ndo_set_vf_spoofchk
3160 * @netdev: network interface device structure
3161 * @vf_id: VF identifier
3162 * @enable: flag to enable or disable feature
3164 * Enable or disable VF spoof checking
3166 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
3168 struct i40e_netdev_priv *np = netdev_priv(netdev);
3169 struct i40e_vsi *vsi = np->vsi;
3170 struct i40e_pf *pf = vsi->back;
3171 struct i40e_vsi_context ctxt;
3172 struct i40e_hw *hw = &pf->hw;
3176 /* validate the request */
3177 if (vf_id >= pf->num_alloc_vfs) {
3178 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3183 vf = &(pf->vf[vf_id]);
3184 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
3185 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3191 if (enable == vf->spoofchk)
3194 vf->spoofchk = enable;
3195 memset(&ctxt, 0, sizeof(ctxt));
3196 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
3197 ctxt.pf_num = pf->hw.pf_id;
3198 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
3200 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
3201 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
3202 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
3204 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
3213 * i40e_ndo_set_vf_trust
3214 * @netdev: network interface device structure of the pf
3215 * @vf_id: VF identifier
3216 * @setting: trust setting
3218 * Enable or disable VF trust setting
3220 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
3222 struct i40e_netdev_priv *np = netdev_priv(netdev);
3223 struct i40e_pf *pf = np->vsi->back;
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);
3233 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3234 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
3238 vf = &pf->vf[vf_id];
3242 if (setting == vf->trusted)
3245 vf->trusted = setting;
3246 i40e_vc_notify_vf_reset(vf);
3247 i40e_reset_vf(vf, false);
3248 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
3249 vf_id, setting ? "" : "un");