1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 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 + 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_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 + 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 + 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 struct i40e_hw *hw = &pf->hw;
166 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
167 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
168 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
173 * i40e_vc_isvalid_vsi_id
174 * @vf: pointer to the VF info
175 * @vsi_id: VF relative VSI id
177 * check for the valid VSI id
179 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
181 struct i40e_pf *pf = vf->pf;
182 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
184 return (vsi && (vsi->vf_id == vf->vf_id));
188 * i40e_vc_isvalid_queue_id
189 * @vf: pointer to the VF info
191 * @qid: vsi relative queue id
193 * check for the valid queue id
195 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
198 struct i40e_pf *pf = vf->pf;
199 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
201 return (vsi && (qid < vsi->alloc_queue_pairs));
205 * i40e_vc_isvalid_vector_id
206 * @vf: pointer to the VF info
207 * @vector_id: VF relative vector id
209 * check for the valid vector id
211 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
213 struct i40e_pf *pf = vf->pf;
215 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
218 /***********************vf resource mgmt routines*****************/
221 * i40e_vc_get_pf_queue_id
222 * @vf: pointer to the VF info
223 * @vsi_id: id of VSI as provided by the FW
224 * @vsi_queue_id: vsi relative queue id
226 * return PF relative queue id
228 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
231 struct i40e_pf *pf = vf->pf;
232 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
233 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
238 if (le16_to_cpu(vsi->info.mapping_flags) &
239 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
241 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
243 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
250 * i40e_config_irq_link_list
251 * @vf: pointer to the VF info
252 * @vsi_id: id of VSI as given by the FW
253 * @vecmap: irq map info
255 * configure irq link list from the map
257 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
258 struct i40e_virtchnl_vector_map *vecmap)
260 unsigned long linklistmap = 0, tempmap;
261 struct i40e_pf *pf = vf->pf;
262 struct i40e_hw *hw = &pf->hw;
263 u16 vsi_queue_id, pf_queue_id;
264 enum i40e_queue_type qtype;
265 u16 next_q, vector_id;
269 vector_id = vecmap->vector_id;
272 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
274 reg_idx = I40E_VPINT_LNKLSTN(
275 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
278 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
279 /* Special case - No queues mapped on this vector */
280 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
283 tempmap = vecmap->rxq_map;
284 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
286 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
290 tempmap = vecmap->txq_map;
291 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
293 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
297 next_q = find_first_bit(&linklistmap,
299 I40E_VIRTCHNL_SUPPORTED_QTYPES));
300 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
301 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
302 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
303 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
305 wr32(hw, reg_idx, reg);
307 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
309 case I40E_QUEUE_TYPE_RX:
310 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
311 itr_idx = vecmap->rxitr_idx;
313 case I40E_QUEUE_TYPE_TX:
314 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
315 itr_idx = vecmap->txitr_idx;
321 next_q = find_next_bit(&linklistmap,
323 I40E_VIRTCHNL_SUPPORTED_QTYPES),
326 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
327 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
328 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
329 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
332 pf_queue_id = I40E_QUEUE_END_OF_LIST;
336 /* format for the RQCTL & TQCTL regs is same */
338 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
339 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
340 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
341 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
342 wr32(hw, reg_idx, reg);
350 * i40e_config_vsi_tx_queue
351 * @vf: pointer to the VF info
352 * @vsi_id: id of VSI as provided by the FW
353 * @vsi_queue_id: vsi relative queue index
354 * @info: config. info
358 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
360 struct i40e_virtchnl_txq_info *info)
362 struct i40e_pf *pf = vf->pf;
363 struct i40e_hw *hw = &pf->hw;
364 struct i40e_hmc_obj_txq tx_ctx;
365 struct i40e_vsi *vsi;
370 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
371 vsi = i40e_find_vsi_from_id(pf, vsi_id);
373 /* clear the context structure first */
374 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
376 /* only set the required fields */
377 tx_ctx.base = info->dma_ring_addr / 128;
378 tx_ctx.qlen = info->ring_len;
379 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
380 tx_ctx.rdylist_act = 0;
381 tx_ctx.head_wb_ena = info->headwb_enabled;
382 tx_ctx.head_wb_addr = info->dma_headwb_addr;
384 /* clear the context in the HMC */
385 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
387 dev_err(&pf->pdev->dev,
388 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
394 /* set the context in the HMC */
395 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
397 dev_err(&pf->pdev->dev,
398 "Failed to set VF LAN Tx queue context %d error: %d\n",
404 /* associate this queue with the PCI VF function */
405 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
406 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
407 & I40E_QTX_CTL_PF_INDX_MASK);
408 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
409 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
410 & I40E_QTX_CTL_VFVM_INDX_MASK);
411 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
419 * i40e_config_vsi_rx_queue
420 * @vf: pointer to the VF info
421 * @vsi_id: id of VSI as provided by the FW
422 * @vsi_queue_id: vsi relative queue index
423 * @info: config. info
427 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
429 struct i40e_virtchnl_rxq_info *info)
431 struct i40e_pf *pf = vf->pf;
432 struct i40e_hw *hw = &pf->hw;
433 struct i40e_hmc_obj_rxq rx_ctx;
437 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
439 /* clear the context structure first */
440 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
442 /* only set the required fields */
443 rx_ctx.base = info->dma_ring_addr / 128;
444 rx_ctx.qlen = info->ring_len;
446 if (info->splithdr_enabled) {
447 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
449 I40E_RX_SPLIT_TCP_UDP |
451 /* header length validation */
452 if (info->hdr_size > ((2 * 1024) - 64)) {
456 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
458 /* set splitalways mode 10b */
462 /* databuffer length validation */
463 if (info->databuffer_size > ((16 * 1024) - 128)) {
467 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
469 /* max pkt. length validation */
470 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
474 rx_ctx.rxmax = info->max_pkt_size;
476 /* enable 32bytes desc always */
480 rx_ctx.lrxqthresh = 2;
485 /* clear the context in the HMC */
486 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
488 dev_err(&pf->pdev->dev,
489 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
495 /* set the context in the HMC */
496 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
498 dev_err(&pf->pdev->dev,
499 "Failed to set VF LAN Rx queue context %d error: %d\n",
511 * @vf: pointer to the VF info
512 * @type: type of VSI to allocate
514 * alloc VF vsi context & resources
516 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
518 struct i40e_mac_filter *f = NULL;
519 struct i40e_pf *pf = vf->pf;
520 struct i40e_vsi *vsi;
523 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
526 dev_err(&pf->pdev->dev,
527 "add vsi failed for VF %d, aq_err %d\n",
528 vf->vf_id, pf->hw.aq.asq_last_status);
530 goto error_alloc_vsi_res;
532 if (type == I40E_VSI_SRIOV) {
533 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
534 vf->lan_vsi_idx = vsi->idx;
535 vf->lan_vsi_id = vsi->id;
536 /* If the port VLAN has been configured and then the
537 * VF driver was removed then the VSI port VLAN
538 * configuration was destroyed. Check if there is
539 * a port VLAN and restore the VSI configuration if
542 if (vf->port_vlan_id)
543 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
544 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
545 vf->port_vlan_id, true, false);
547 dev_info(&pf->pdev->dev,
548 "Could not allocate VF MAC addr\n");
549 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
552 dev_info(&pf->pdev->dev,
553 "Could not allocate VF broadcast filter\n");
556 /* program mac filter */
557 ret = i40e_sync_vsi_filters(vsi);
559 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
561 /* Set VF bandwidth if specified */
563 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
564 vf->tx_rate / 50, 0, NULL);
566 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
575 * i40e_enable_vf_mappings
576 * @vf: pointer to the VF info
580 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
582 struct i40e_pf *pf = vf->pf;
583 struct i40e_hw *hw = &pf->hw;
584 u32 reg, total_queue_pairs = 0;
587 /* Tell the hardware we're using noncontiguous mapping. HW requires
588 * that VF queues be mapped using this method, even when they are
589 * contiguous in real life
591 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
592 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
594 /* enable VF vplan_qtable mappings */
595 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
596 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
598 /* map PF queues to VF queues */
599 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
600 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
601 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
602 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
606 /* map PF queues to VSI */
607 for (j = 0; j < 7; j++) {
608 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
609 reg = 0x07FF07FF; /* unused */
611 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
614 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
618 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
625 * i40e_disable_vf_mappings
626 * @vf: pointer to the VF info
628 * disable VF mappings
630 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
632 struct i40e_pf *pf = vf->pf;
633 struct i40e_hw *hw = &pf->hw;
636 /* disable qp mappings */
637 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
638 for (i = 0; i < I40E_MAX_VSI_QP; i++)
639 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
640 I40E_QUEUE_END_OF_LIST);
646 * @vf: pointer to the VF info
650 static void i40e_free_vf_res(struct i40e_vf *vf)
652 struct i40e_pf *pf = vf->pf;
653 struct i40e_hw *hw = &pf->hw;
657 /* free vsi & disconnect it from the parent uplink */
658 if (vf->lan_vsi_idx) {
659 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
663 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
665 /* disable interrupts so the VF starts in a known state */
666 for (i = 0; i < msix_vf; i++) {
667 /* format is same for both registers */
669 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
671 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
674 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
678 /* clear the irq settings */
679 for (i = 0; i < msix_vf; i++) {
680 /* format is same for both registers */
682 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
684 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
687 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
688 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
689 wr32(hw, reg_idx, reg);
692 /* reset some of the state varibles keeping
693 * track of the resources
695 vf->num_queue_pairs = 0;
701 * @vf: pointer to the VF info
703 * allocate VF resources
705 static int i40e_alloc_vf_res(struct i40e_vf *vf)
707 struct i40e_pf *pf = vf->pf;
708 int total_queue_pairs = 0;
711 /* allocate hw vsi context & associated resources */
712 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
715 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
716 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
718 /* store the total qps number for the runtime
721 vf->num_queue_pairs = total_queue_pairs;
723 /* VF is now completely initialized */
724 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
728 i40e_free_vf_res(vf);
733 #define VF_DEVICE_STATUS 0xAA
734 #define VF_TRANS_PENDING_MASK 0x20
736 * i40e_quiesce_vf_pci
737 * @vf: pointer to the VF structure
739 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
740 * if the transactions never clear.
742 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
744 struct i40e_pf *pf = vf->pf;
745 struct i40e_hw *hw = &pf->hw;
749 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
751 wr32(hw, I40E_PF_PCI_CIAA,
752 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
753 for (i = 0; i < 100; i++) {
754 reg = rd32(hw, I40E_PF_PCI_CIAD);
755 if ((reg & VF_TRANS_PENDING_MASK) == 0)
764 * @vf: pointer to the VF structure
765 * @flr: VFLR was issued or not
769 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
771 struct i40e_pf *pf = vf->pf;
772 struct i40e_hw *hw = &pf->hw;
777 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
781 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
783 /* In the case of a VFLR, the HW has already reset the VF and we
784 * just need to clean up, so don't hit the VFRTRIG register.
787 /* reset VF using VPGEN_VFRTRIG reg */
788 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
789 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
790 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
794 if (i40e_quiesce_vf_pci(vf))
795 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
798 /* poll VPGEN_VFRSTAT reg to make sure
799 * that reset is complete
801 for (i = 0; i < 10; i++) {
802 /* VF reset requires driver to first reset the VF and then
803 * poll the status register to make sure that the reset
804 * completed successfully. Due to internal HW FIFO flushes,
805 * we must wait 10ms before the register will be valid.
807 usleep_range(10000, 20000);
808 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
809 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
816 usleep_range(10000, 20000);
819 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
821 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
822 /* clear the reset bit in the VPGEN_VFRTRIG reg */
823 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
824 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
825 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
827 /* On initial reset, we won't have any queues */
828 if (vf->lan_vsi_idx == 0)
831 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
833 /* reallocate VF resources to reset the VSI state */
834 i40e_free_vf_res(vf);
835 i40e_alloc_vf_res(vf);
836 i40e_enable_vf_mappings(vf);
837 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
839 /* tell the VF the reset is done */
840 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
842 clear_bit(__I40E_VF_DISABLE, &pf->state);
847 * @pf: pointer to the PF structure
851 void i40e_free_vfs(struct i40e_pf *pf)
853 struct i40e_hw *hw = &pf->hw;
854 u32 reg_idx, bit_idx;
859 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
860 usleep_range(1000, 2000);
862 for (i = 0; i < pf->num_alloc_vfs; i++)
863 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
864 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
867 /* Disable IOV before freeing resources. This lets any VF drivers
868 * running in the host get themselves cleaned up before we yank
869 * the carpet out from underneath their feet.
871 if (!pci_vfs_assigned(pf->pdev))
872 pci_disable_sriov(pf->pdev);
874 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
876 msleep(20); /* let any messages in transit get finished up */
878 /* free up VF resources */
879 tmp = pf->num_alloc_vfs;
880 pf->num_alloc_vfs = 0;
881 for (i = 0; i < tmp; i++) {
882 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
883 i40e_free_vf_res(&pf->vf[i]);
884 /* disable qp mappings */
885 i40e_disable_vf_mappings(&pf->vf[i]);
891 /* This check is for when the driver is unloaded while VFs are
892 * assigned. Setting the number of VFs to 0 through sysfs is caught
893 * before this function ever gets called.
895 if (!pci_vfs_assigned(pf->pdev)) {
896 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
897 * work correctly when SR-IOV gets re-enabled.
899 for (vf_id = 0; vf_id < tmp; vf_id++) {
900 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
901 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
902 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
905 clear_bit(__I40E_VF_DISABLE, &pf->state);
908 #ifdef CONFIG_PCI_IOV
911 * @pf: pointer to the PF structure
912 * @num_alloc_vfs: number of VFs to allocate
914 * allocate VF resources
916 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
921 /* Disable interrupt 0 so we don't try to handle the VFLR. */
922 i40e_irq_dynamic_disable_icr0(pf);
924 /* Check to see if we're just allocating resources for extant VFs */
925 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
926 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
928 dev_err(&pf->pdev->dev,
929 "Failed to enable SR-IOV, error %d.\n", ret);
930 pf->num_alloc_vfs = 0;
934 /* allocate memory */
935 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
942 /* apply default profile */
943 for (i = 0; i < num_alloc_vfs; i++) {
945 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
948 /* assign default capabilities */
949 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
950 vfs[i].spoofchk = true;
951 /* VF resources get allocated during reset */
952 i40e_reset_vf(&vfs[i], false);
954 /* enable VF vplan_qtable mappings */
955 i40e_enable_vf_mappings(&vfs[i]);
957 pf->num_alloc_vfs = num_alloc_vfs;
963 /* Re-enable interrupt 0. */
964 i40e_irq_dynamic_enable_icr0(pf);
970 * i40e_pci_sriov_enable
971 * @pdev: pointer to a pci_dev structure
972 * @num_vfs: number of VFs to allocate
974 * Enable or change the number of VFs
976 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
978 #ifdef CONFIG_PCI_IOV
979 struct i40e_pf *pf = pci_get_drvdata(pdev);
980 int pre_existing_vfs = pci_num_vf(pdev);
983 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
984 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
986 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
989 if (num_vfs > pf->num_req_vfs) {
994 err = i40e_alloc_vfs(pf, num_vfs);
996 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1010 * i40e_pci_sriov_configure
1011 * @pdev: pointer to a pci_dev structure
1012 * @num_vfs: number of VFs to allocate
1014 * Enable or change the number of VFs. Called when the user updates the number
1017 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1019 struct i40e_pf *pf = pci_get_drvdata(pdev);
1022 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1023 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1024 i40e_do_reset_safe(pf,
1025 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1027 return i40e_pci_sriov_enable(pdev, num_vfs);
1030 if (!pci_vfs_assigned(pf->pdev)) {
1032 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1033 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1035 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1041 /***********************virtual channel routines******************/
1044 * i40e_vc_send_msg_to_vf
1045 * @vf: pointer to the VF info
1046 * @v_opcode: virtual channel opcode
1047 * @v_retval: virtual channel return value
1048 * @msg: pointer to the msg buffer
1049 * @msglen: msg length
1053 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1054 u32 v_retval, u8 *msg, u16 msglen)
1061 /* validate the request */
1062 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1067 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1069 /* single place to detect unsuccessful return values */
1071 vf->num_invalid_msgs++;
1072 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1073 v_opcode, v_retval);
1074 if (vf->num_invalid_msgs >
1075 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1076 dev_err(&pf->pdev->dev,
1077 "Number of invalid messages exceeded for VF %d\n",
1079 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1080 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1083 vf->num_valid_msgs++;
1086 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1089 dev_err(&pf->pdev->dev,
1090 "Unable to send the message to VF %d aq_err %d\n",
1091 vf->vf_id, pf->hw.aq.asq_last_status);
1099 * i40e_vc_send_resp_to_vf
1100 * @vf: pointer to the VF info
1101 * @opcode: operation code
1102 * @retval: return value
1104 * send resp msg to VF
1106 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1107 enum i40e_virtchnl_ops opcode,
1110 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1114 * i40e_vc_get_version_msg
1115 * @vf: pointer to the VF info
1117 * called from the VF to request the API version used by the PF
1119 static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1121 struct i40e_virtchnl_version_info info = {
1122 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1125 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1126 I40E_SUCCESS, (u8 *)&info,
1128 i40e_virtchnl_version_info));
1132 * i40e_vc_get_vf_resources_msg
1133 * @vf: pointer to the VF info
1134 * @msg: pointer to the msg buffer
1135 * @msglen: msg length
1137 * called from the VF to request its resources
1139 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1141 struct i40e_virtchnl_vf_resource *vfres = NULL;
1142 struct i40e_pf *pf = vf->pf;
1143 i40e_status aq_ret = 0;
1144 struct i40e_vsi *vsi;
1149 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1150 aq_ret = I40E_ERR_PARAM;
1154 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1155 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1157 vfres = kzalloc(len, GFP_KERNEL);
1159 aq_ret = I40E_ERR_NO_MEMORY;
1164 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1165 vsi = pf->vsi[vf->lan_vsi_idx];
1166 if (!vsi->info.pvid)
1167 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1169 vfres->num_vsis = num_vsis;
1170 vfres->num_queue_pairs = vf->num_queue_pairs;
1171 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1172 if (vf->lan_vsi_idx) {
1173 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1174 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1175 vfres->vsi_res[i].num_queue_pairs =
1176 pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1177 memcpy(vfres->vsi_res[i].default_mac_addr,
1178 vf->default_lan_addr.addr, ETH_ALEN);
1181 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1184 /* send the response back to the VF */
1185 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1186 aq_ret, (u8 *)vfres, len);
1193 * i40e_vc_reset_vf_msg
1194 * @vf: pointer to the VF info
1195 * @msg: pointer to the msg buffer
1196 * @msglen: msg length
1198 * called from the VF to reset itself,
1199 * unlike other virtchnl messages, PF driver
1200 * doesn't send the response back to the VF
1202 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1204 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1205 i40e_reset_vf(vf, false);
1209 * i40e_vc_config_promiscuous_mode_msg
1210 * @vf: pointer to the VF info
1211 * @msg: pointer to the msg buffer
1212 * @msglen: msg length
1214 * called from the VF to configure the promiscuous mode of
1217 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1218 u8 *msg, u16 msglen)
1220 struct i40e_virtchnl_promisc_info *info =
1221 (struct i40e_virtchnl_promisc_info *)msg;
1222 struct i40e_pf *pf = vf->pf;
1223 struct i40e_hw *hw = &pf->hw;
1224 struct i40e_vsi *vsi;
1225 bool allmulti = false;
1228 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1229 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1230 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1231 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1232 (vsi->type != I40E_VSI_FCOE)) {
1233 aq_ret = I40E_ERR_PARAM;
1236 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1238 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1242 /* send the response to the VF */
1243 return i40e_vc_send_resp_to_vf(vf,
1244 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1249 * i40e_vc_config_queues_msg
1250 * @vf: pointer to the VF info
1251 * @msg: pointer to the msg buffer
1252 * @msglen: msg length
1254 * called from the VF to configure the rx/tx
1257 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1259 struct i40e_virtchnl_vsi_queue_config_info *qci =
1260 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1261 struct i40e_virtchnl_queue_pair_info *qpi;
1262 struct i40e_pf *pf = vf->pf;
1263 u16 vsi_id, vsi_queue_id;
1264 i40e_status aq_ret = 0;
1267 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1268 aq_ret = I40E_ERR_PARAM;
1272 vsi_id = qci->vsi_id;
1273 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1274 aq_ret = I40E_ERR_PARAM;
1277 for (i = 0; i < qci->num_queue_pairs; i++) {
1278 qpi = &qci->qpair[i];
1279 vsi_queue_id = qpi->txq.queue_id;
1280 if ((qpi->txq.vsi_id != vsi_id) ||
1281 (qpi->rxq.vsi_id != vsi_id) ||
1282 (qpi->rxq.queue_id != vsi_queue_id) ||
1283 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1284 aq_ret = I40E_ERR_PARAM;
1288 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1290 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1292 aq_ret = I40E_ERR_PARAM;
1296 /* set vsi num_queue_pairs in use to num configured by VF */
1297 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1300 /* send the response to the VF */
1301 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1306 * i40e_vc_config_irq_map_msg
1307 * @vf: pointer to the VF info
1308 * @msg: pointer to the msg buffer
1309 * @msglen: msg length
1311 * called from the VF to configure the irq to
1314 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1316 struct i40e_virtchnl_irq_map_info *irqmap_info =
1317 (struct i40e_virtchnl_irq_map_info *)msg;
1318 struct i40e_virtchnl_vector_map *map;
1319 u16 vsi_id, vsi_queue_id, vector_id;
1320 i40e_status aq_ret = 0;
1321 unsigned long tempmap;
1324 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1325 aq_ret = I40E_ERR_PARAM;
1329 for (i = 0; i < irqmap_info->num_vectors; i++) {
1330 map = &irqmap_info->vecmap[i];
1332 vector_id = map->vector_id;
1333 vsi_id = map->vsi_id;
1334 /* validate msg params */
1335 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1336 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1337 aq_ret = I40E_ERR_PARAM;
1341 /* lookout for the invalid queue index */
1342 tempmap = map->rxq_map;
1343 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1344 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1346 aq_ret = I40E_ERR_PARAM;
1351 tempmap = map->txq_map;
1352 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1353 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1355 aq_ret = I40E_ERR_PARAM;
1360 i40e_config_irq_link_list(vf, vsi_id, map);
1363 /* send the response to the VF */
1364 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1369 * i40e_vc_enable_queues_msg
1370 * @vf: pointer to the VF info
1371 * @msg: pointer to the msg buffer
1372 * @msglen: msg length
1374 * called from the VF to enable all or specific queue(s)
1376 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1378 struct i40e_virtchnl_queue_select *vqs =
1379 (struct i40e_virtchnl_queue_select *)msg;
1380 struct i40e_pf *pf = vf->pf;
1381 u16 vsi_id = vqs->vsi_id;
1382 i40e_status aq_ret = 0;
1384 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1385 aq_ret = I40E_ERR_PARAM;
1389 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1390 aq_ret = I40E_ERR_PARAM;
1394 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1395 aq_ret = I40E_ERR_PARAM;
1399 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1400 aq_ret = I40E_ERR_TIMEOUT;
1402 /* send the response to the VF */
1403 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1408 * i40e_vc_disable_queues_msg
1409 * @vf: pointer to the VF info
1410 * @msg: pointer to the msg buffer
1411 * @msglen: msg length
1413 * called from the VF to disable all or specific
1416 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1418 struct i40e_virtchnl_queue_select *vqs =
1419 (struct i40e_virtchnl_queue_select *)msg;
1420 struct i40e_pf *pf = vf->pf;
1421 i40e_status aq_ret = 0;
1423 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1424 aq_ret = I40E_ERR_PARAM;
1428 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1429 aq_ret = I40E_ERR_PARAM;
1433 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1434 aq_ret = I40E_ERR_PARAM;
1438 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1439 aq_ret = I40E_ERR_TIMEOUT;
1442 /* send the response to the VF */
1443 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1448 * i40e_vc_get_stats_msg
1449 * @vf: pointer to the VF info
1450 * @msg: pointer to the msg buffer
1451 * @msglen: msg length
1453 * called from the VF to get vsi stats
1455 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1457 struct i40e_virtchnl_queue_select *vqs =
1458 (struct i40e_virtchnl_queue_select *)msg;
1459 struct i40e_pf *pf = vf->pf;
1460 struct i40e_eth_stats stats;
1461 i40e_status aq_ret = 0;
1462 struct i40e_vsi *vsi;
1464 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1466 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1467 aq_ret = I40E_ERR_PARAM;
1471 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1472 aq_ret = I40E_ERR_PARAM;
1476 vsi = pf->vsi[vf->lan_vsi_idx];
1478 aq_ret = I40E_ERR_PARAM;
1481 i40e_update_eth_stats(vsi);
1482 stats = vsi->eth_stats;
1485 /* send the response back to the VF */
1486 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1487 (u8 *)&stats, sizeof(stats));
1491 * i40e_check_vf_permission
1492 * @vf: pointer to the VF info
1493 * @macaddr: pointer to the MAC Address being checked
1495 * Check if the VF has permission to add or delete unicast MAC address
1496 * filters and return error code -EPERM if not. Then check if the
1497 * address filter requested is broadcast or zero and if so return
1498 * an invalid MAC address error code.
1500 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1502 struct i40e_pf *pf = vf->pf;
1505 if (is_broadcast_ether_addr(macaddr) ||
1506 is_zero_ether_addr(macaddr)) {
1507 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1508 ret = I40E_ERR_INVALID_MAC_ADDR;
1509 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1510 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1511 /* If the host VMM administrator has set the VF MAC address
1512 * administratively via the ndo_set_vf_mac command then deny
1513 * permission to the VF to add or delete unicast MAC addresses.
1514 * The VF may request to set the MAC address filter already
1515 * assigned to it so do not return an error in that case.
1517 dev_err(&pf->pdev->dev,
1518 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1525 * i40e_vc_add_mac_addr_msg
1526 * @vf: pointer to the VF info
1527 * @msg: pointer to the msg buffer
1528 * @msglen: msg length
1530 * add guest mac address filter
1532 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1534 struct i40e_virtchnl_ether_addr_list *al =
1535 (struct i40e_virtchnl_ether_addr_list *)msg;
1536 struct i40e_pf *pf = vf->pf;
1537 struct i40e_vsi *vsi = NULL;
1538 u16 vsi_id = al->vsi_id;
1539 i40e_status ret = 0;
1542 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1543 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1544 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1545 ret = I40E_ERR_PARAM;
1549 for (i = 0; i < al->num_elements; i++) {
1550 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1554 vsi = pf->vsi[vf->lan_vsi_idx];
1556 /* add new addresses to the list */
1557 for (i = 0; i < al->num_elements; i++) {
1558 struct i40e_mac_filter *f;
1560 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1562 if (i40e_is_vsi_in_vlan(vsi))
1563 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1566 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1571 dev_err(&pf->pdev->dev,
1572 "Unable to add VF MAC filter\n");
1573 ret = I40E_ERR_PARAM;
1578 /* program the updated filter list */
1579 if (i40e_sync_vsi_filters(vsi))
1580 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1583 /* send the response to the VF */
1584 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1589 * i40e_vc_del_mac_addr_msg
1590 * @vf: pointer to the VF info
1591 * @msg: pointer to the msg buffer
1592 * @msglen: msg length
1594 * remove guest mac address filter
1596 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1598 struct i40e_virtchnl_ether_addr_list *al =
1599 (struct i40e_virtchnl_ether_addr_list *)msg;
1600 struct i40e_pf *pf = vf->pf;
1601 struct i40e_vsi *vsi = NULL;
1602 u16 vsi_id = al->vsi_id;
1603 i40e_status ret = 0;
1606 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1607 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1608 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1609 ret = I40E_ERR_PARAM;
1613 for (i = 0; i < al->num_elements; i++) {
1614 if (is_broadcast_ether_addr(al->list[i].addr) ||
1615 is_zero_ether_addr(al->list[i].addr)) {
1616 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1618 ret = I40E_ERR_INVALID_MAC_ADDR;
1622 vsi = pf->vsi[vf->lan_vsi_idx];
1624 /* delete addresses from the list */
1625 for (i = 0; i < al->num_elements; i++)
1626 i40e_del_filter(vsi, al->list[i].addr,
1627 I40E_VLAN_ANY, true, false);
1629 /* program the updated filter list */
1630 if (i40e_sync_vsi_filters(vsi))
1631 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1634 /* send the response to the VF */
1635 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1640 * i40e_vc_add_vlan_msg
1641 * @vf: pointer to the VF info
1642 * @msg: pointer to the msg buffer
1643 * @msglen: msg length
1645 * program guest vlan id
1647 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1649 struct i40e_virtchnl_vlan_filter_list *vfl =
1650 (struct i40e_virtchnl_vlan_filter_list *)msg;
1651 struct i40e_pf *pf = vf->pf;
1652 struct i40e_vsi *vsi = NULL;
1653 u16 vsi_id = vfl->vsi_id;
1654 i40e_status aq_ret = 0;
1657 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1658 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1659 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1660 aq_ret = I40E_ERR_PARAM;
1664 for (i = 0; i < vfl->num_elements; i++) {
1665 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1666 aq_ret = I40E_ERR_PARAM;
1667 dev_err(&pf->pdev->dev,
1668 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1672 vsi = pf->vsi[vf->lan_vsi_idx];
1673 if (vsi->info.pvid) {
1674 aq_ret = I40E_ERR_PARAM;
1678 i40e_vlan_stripping_enable(vsi);
1679 for (i = 0; i < vfl->num_elements; i++) {
1680 /* add new VLAN filter */
1681 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1683 dev_err(&pf->pdev->dev,
1684 "Unable to add VF vlan filter %d, error %d\n",
1685 vfl->vlan_id[i], ret);
1689 /* send the response to the VF */
1690 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1694 * i40e_vc_remove_vlan_msg
1695 * @vf: pointer to the VF info
1696 * @msg: pointer to the msg buffer
1697 * @msglen: msg length
1699 * remove programmed guest vlan id
1701 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1703 struct i40e_virtchnl_vlan_filter_list *vfl =
1704 (struct i40e_virtchnl_vlan_filter_list *)msg;
1705 struct i40e_pf *pf = vf->pf;
1706 struct i40e_vsi *vsi = NULL;
1707 u16 vsi_id = vfl->vsi_id;
1708 i40e_status aq_ret = 0;
1711 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1712 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1713 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1714 aq_ret = I40E_ERR_PARAM;
1718 for (i = 0; i < vfl->num_elements; i++) {
1719 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1720 aq_ret = I40E_ERR_PARAM;
1725 vsi = pf->vsi[vf->lan_vsi_idx];
1726 if (vsi->info.pvid) {
1727 aq_ret = I40E_ERR_PARAM;
1731 for (i = 0; i < vfl->num_elements; i++) {
1732 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1734 dev_err(&pf->pdev->dev,
1735 "Unable to delete VF vlan filter %d, error %d\n",
1736 vfl->vlan_id[i], ret);
1740 /* send the response to the VF */
1741 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1745 * i40e_vc_validate_vf_msg
1746 * @vf: pointer to the VF info
1747 * @msg: pointer to the msg buffer
1748 * @msglen: msg length
1749 * @msghndl: msg handle
1753 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1754 u32 v_retval, u8 *msg, u16 msglen)
1756 bool err_msg_format = false;
1759 /* Check if VF is disabled. */
1760 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1761 return I40E_ERR_PARAM;
1763 /* Validate message length. */
1765 case I40E_VIRTCHNL_OP_VERSION:
1766 valid_len = sizeof(struct i40e_virtchnl_version_info);
1768 case I40E_VIRTCHNL_OP_RESET_VF:
1769 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1772 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1773 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1775 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1776 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1778 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1779 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1780 if (msglen >= valid_len) {
1781 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1782 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1783 valid_len += (vqc->num_queue_pairs *
1785 i40e_virtchnl_queue_pair_info));
1786 if (vqc->num_queue_pairs == 0)
1787 err_msg_format = true;
1790 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1791 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1792 if (msglen >= valid_len) {
1793 struct i40e_virtchnl_irq_map_info *vimi =
1794 (struct i40e_virtchnl_irq_map_info *)msg;
1795 valid_len += (vimi->num_vectors *
1796 sizeof(struct i40e_virtchnl_vector_map));
1797 if (vimi->num_vectors == 0)
1798 err_msg_format = true;
1801 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1802 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1803 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1805 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1806 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1807 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1808 if (msglen >= valid_len) {
1809 struct i40e_virtchnl_ether_addr_list *veal =
1810 (struct i40e_virtchnl_ether_addr_list *)msg;
1811 valid_len += veal->num_elements *
1812 sizeof(struct i40e_virtchnl_ether_addr);
1813 if (veal->num_elements == 0)
1814 err_msg_format = true;
1817 case I40E_VIRTCHNL_OP_ADD_VLAN:
1818 case I40E_VIRTCHNL_OP_DEL_VLAN:
1819 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1820 if (msglen >= valid_len) {
1821 struct i40e_virtchnl_vlan_filter_list *vfl =
1822 (struct i40e_virtchnl_vlan_filter_list *)msg;
1823 valid_len += vfl->num_elements * sizeof(u16);
1824 if (vfl->num_elements == 0)
1825 err_msg_format = true;
1828 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1829 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1831 case I40E_VIRTCHNL_OP_GET_STATS:
1832 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1834 /* These are always errors coming from the VF. */
1835 case I40E_VIRTCHNL_OP_EVENT:
1836 case I40E_VIRTCHNL_OP_UNKNOWN:
1841 /* few more checks */
1842 if ((valid_len != msglen) || (err_msg_format)) {
1843 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1851 * i40e_vc_process_vf_msg
1852 * @pf: pointer to the PF structure
1853 * @vf_id: source VF id
1854 * @msg: pointer to the msg buffer
1855 * @msglen: msg length
1856 * @msghndl: msg handle
1858 * called from the common aeq/arq handler to
1859 * process request from VF
1861 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1862 u32 v_retval, u8 *msg, u16 msglen)
1864 struct i40e_hw *hw = &pf->hw;
1865 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1869 pf->vf_aq_requests++;
1870 if (local_vf_id >= pf->num_alloc_vfs)
1872 vf = &(pf->vf[local_vf_id]);
1873 /* perform basic checks on the msg */
1874 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1877 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1878 local_vf_id, v_opcode, msglen);
1883 case I40E_VIRTCHNL_OP_VERSION:
1884 ret = i40e_vc_get_version_msg(vf);
1886 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1887 ret = i40e_vc_get_vf_resources_msg(vf);
1889 case I40E_VIRTCHNL_OP_RESET_VF:
1890 i40e_vc_reset_vf_msg(vf);
1893 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1894 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1896 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1897 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1899 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1900 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1902 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1903 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1904 i40e_vc_notify_vf_link_state(vf);
1906 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1907 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1909 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1910 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1912 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1913 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1915 case I40E_VIRTCHNL_OP_ADD_VLAN:
1916 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1918 case I40E_VIRTCHNL_OP_DEL_VLAN:
1919 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1921 case I40E_VIRTCHNL_OP_GET_STATS:
1922 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1924 case I40E_VIRTCHNL_OP_UNKNOWN:
1926 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
1927 v_opcode, local_vf_id);
1928 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1929 I40E_ERR_NOT_IMPLEMENTED);
1937 * i40e_vc_process_vflr_event
1938 * @pf: pointer to the PF structure
1940 * called from the vlfr irq handler to
1941 * free up VF resources and state variables
1943 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1945 u32 reg, reg_idx, bit_idx, vf_id;
1946 struct i40e_hw *hw = &pf->hw;
1949 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1952 /* re-enable vflr interrupt cause */
1953 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1954 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1955 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1958 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1959 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1960 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1961 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1962 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
1963 vf = &pf->vf[vf_id];
1964 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1965 if (reg & (1 << bit_idx)) {
1966 /* clear the bit in GLGEN_VFLRSTAT */
1967 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1969 if (!test_bit(__I40E_DOWN, &pf->state))
1970 i40e_reset_vf(vf, true);
1978 * i40e_ndo_set_vf_mac
1979 * @netdev: network interface device structure
1980 * @vf_id: VF identifier
1983 * program VF mac address
1985 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1987 struct i40e_netdev_priv *np = netdev_priv(netdev);
1988 struct i40e_vsi *vsi = np->vsi;
1989 struct i40e_pf *pf = vsi->back;
1990 struct i40e_mac_filter *f;
1994 /* validate the request */
1995 if (vf_id >= pf->num_alloc_vfs) {
1996 dev_err(&pf->pdev->dev,
1997 "Invalid VF Identifier %d\n", vf_id);
2002 vf = &(pf->vf[vf_id]);
2003 vsi = pf->vsi[vf->lan_vsi_idx];
2004 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2005 dev_err(&pf->pdev->dev,
2006 "Uninitialized VF %d\n", vf_id);
2011 if (!is_valid_ether_addr(mac)) {
2012 dev_err(&pf->pdev->dev,
2013 "Invalid VF ethernet address\n");
2018 /* delete the temporary mac address */
2019 i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
2022 /* Delete all the filters for this VSI - we're going to kill it
2025 list_for_each_entry(f, &vsi->mac_filter_list, list)
2026 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2028 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2029 /* program mac filter */
2030 if (i40e_sync_vsi_filters(vsi)) {
2031 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2035 ether_addr_copy(vf->default_lan_addr.addr, mac);
2036 vf->pf_set_mac = true;
2037 /* Force the VF driver stop so it has to reload with new MAC address */
2038 i40e_vc_disable_vf(pf, vf);
2039 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2046 * i40e_ndo_set_vf_port_vlan
2047 * @netdev: network interface device structure
2048 * @vf_id: VF identifier
2049 * @vlan_id: mac address
2050 * @qos: priority setting
2052 * program VF vlan id and/or qos
2054 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2055 int vf_id, u16 vlan_id, u8 qos)
2057 struct i40e_netdev_priv *np = netdev_priv(netdev);
2058 struct i40e_pf *pf = np->vsi->back;
2059 struct i40e_vsi *vsi;
2063 /* validate the request */
2064 if (vf_id >= pf->num_alloc_vfs) {
2065 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2070 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2071 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2076 vf = &(pf->vf[vf_id]);
2077 vsi = pf->vsi[vf->lan_vsi_idx];
2078 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2079 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2084 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
2085 dev_err(&pf->pdev->dev,
2086 "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",
2088 /* Administrator Error - knock the VF offline until he does
2089 * the right thing by reconfiguring his network correctly
2090 * and then reloading the VF driver.
2092 i40e_vc_disable_vf(pf, vf);
2095 /* Check for condition where there was already a port VLAN ID
2096 * filter set and now it is being deleted by setting it to zero.
2097 * Additionally check for the condition where there was a port
2098 * VLAN but now there is a new and different port VLAN being set.
2099 * Before deleting all the old VLAN filters we must add new ones
2100 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2101 * MAC addresses deleted.
2103 if ((!(vlan_id || qos) ||
2104 (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
2106 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2108 if (vsi->info.pvid) {
2110 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2113 dev_info(&vsi->back->pdev->dev,
2114 "remove VLAN failed, ret=%d, aq_err=%d\n",
2115 ret, pf->hw.aq.asq_last_status);
2119 ret = i40e_vsi_add_pvid(vsi,
2120 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2122 i40e_vsi_remove_pvid(vsi);
2125 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2126 vlan_id, qos, vf_id);
2128 /* add new VLAN filter */
2129 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2131 dev_info(&vsi->back->pdev->dev,
2132 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2133 vsi->back->hw.aq.asq_last_status);
2136 /* Kill non-vlan MAC filters - ignore error return since
2137 * there might not be any non-vlan MAC filters.
2139 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2143 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2146 /* The Port VLAN needs to be saved across resets the same as the
2147 * default LAN MAC address.
2149 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2156 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2157 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2159 * i40e_ndo_set_vf_bw
2160 * @netdev: network interface device structure
2161 * @vf_id: VF identifier
2164 * configure VF Tx rate
2166 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2169 struct i40e_netdev_priv *np = netdev_priv(netdev);
2170 struct i40e_pf *pf = np->vsi->back;
2171 struct i40e_vsi *vsi;
2176 /* validate the request */
2177 if (vf_id >= pf->num_alloc_vfs) {
2178 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2184 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2185 min_tx_rate, vf_id);
2189 vf = &(pf->vf[vf_id]);
2190 vsi = pf->vsi[vf->lan_vsi_idx];
2191 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2192 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2197 switch (pf->hw.phy.link_info.link_speed) {
2198 case I40E_LINK_SPEED_40GB:
2201 case I40E_LINK_SPEED_10GB:
2204 case I40E_LINK_SPEED_1GB:
2211 if (max_tx_rate > speed) {
2212 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2213 max_tx_rate, vf->vf_id);
2218 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2219 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2223 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2224 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2225 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2226 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2228 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2233 vf->tx_rate = max_tx_rate;
2239 * i40e_ndo_get_vf_config
2240 * @netdev: network interface device structure
2241 * @vf_id: VF identifier
2242 * @ivi: VF configuration structure
2244 * return VF configuration
2246 int i40e_ndo_get_vf_config(struct net_device *netdev,
2247 int vf_id, struct ifla_vf_info *ivi)
2249 struct i40e_netdev_priv *np = netdev_priv(netdev);
2250 struct i40e_vsi *vsi = np->vsi;
2251 struct i40e_pf *pf = vsi->back;
2255 /* validate the request */
2256 if (vf_id >= pf->num_alloc_vfs) {
2257 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2262 vf = &(pf->vf[vf_id]);
2263 /* first vsi is always the LAN vsi */
2264 vsi = pf->vsi[vf->lan_vsi_idx];
2265 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2266 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2273 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
2275 ivi->max_tx_rate = vf->tx_rate;
2276 ivi->min_tx_rate = 0;
2277 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2278 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2279 I40E_VLAN_PRIORITY_SHIFT;
2280 if (vf->link_forced == false)
2281 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2282 else if (vf->link_up == true)
2283 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2285 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2286 ivi->spoofchk = vf->spoofchk;
2294 * i40e_ndo_set_vf_link_state
2295 * @netdev: network interface device structure
2296 * @vf_id: VF identifier
2297 * @link: required link state
2299 * Set the link state of a specified VF, regardless of physical link state
2301 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2303 struct i40e_netdev_priv *np = netdev_priv(netdev);
2304 struct i40e_pf *pf = np->vsi->back;
2305 struct i40e_virtchnl_pf_event pfe;
2306 struct i40e_hw *hw = &pf->hw;
2311 /* validate the request */
2312 if (vf_id >= pf->num_alloc_vfs) {
2313 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2318 vf = &pf->vf[vf_id];
2319 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2321 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2322 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2325 case IFLA_VF_LINK_STATE_AUTO:
2326 vf->link_forced = false;
2327 pfe.event_data.link_event.link_status =
2328 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2329 pfe.event_data.link_event.link_speed =
2330 pf->hw.phy.link_info.link_speed;
2332 case IFLA_VF_LINK_STATE_ENABLE:
2333 vf->link_forced = true;
2335 pfe.event_data.link_event.link_status = true;
2336 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2338 case IFLA_VF_LINK_STATE_DISABLE:
2339 vf->link_forced = true;
2340 vf->link_up = false;
2341 pfe.event_data.link_event.link_status = false;
2342 pfe.event_data.link_event.link_speed = 0;
2348 /* Notify the VF of its new link state */
2349 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2350 0, (u8 *)&pfe, sizeof(pfe), NULL);
2357 * i40e_ndo_set_vf_spoofchk
2358 * @netdev: network interface device structure
2359 * @vf_id: VF identifier
2360 * @enable: flag to enable or disable feature
2362 * Enable or disable VF spoof checking
2364 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2366 struct i40e_netdev_priv *np = netdev_priv(netdev);
2367 struct i40e_vsi *vsi = np->vsi;
2368 struct i40e_pf *pf = vsi->back;
2369 struct i40e_vsi_context ctxt;
2370 struct i40e_hw *hw = &pf->hw;
2374 /* validate the request */
2375 if (vf_id >= pf->num_alloc_vfs) {
2376 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2381 vf = &(pf->vf[vf_id]);
2383 if (enable == vf->spoofchk)
2386 vf->spoofchk = enable;
2387 memset(&ctxt, 0, sizeof(ctxt));
2388 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2389 ctxt.pf_num = pf->hw.pf_id;
2390 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2392 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2393 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2394 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2396 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",