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 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_config_vsi_tx_queue
356 * @vf: pointer to the VF info
357 * @vsi_id: id of VSI as provided by the FW
358 * @vsi_queue_id: vsi relative queue index
359 * @info: config. info
363 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
365 struct i40e_virtchnl_txq_info *info)
367 struct i40e_pf *pf = vf->pf;
368 struct i40e_hw *hw = &pf->hw;
369 struct i40e_hmc_obj_txq tx_ctx;
370 struct i40e_vsi *vsi;
375 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
376 vsi = i40e_find_vsi_from_id(pf, vsi_id);
378 /* clear the context structure first */
379 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
381 /* only set the required fields */
382 tx_ctx.base = info->dma_ring_addr / 128;
383 tx_ctx.qlen = info->ring_len;
384 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
385 tx_ctx.rdylist_act = 0;
386 tx_ctx.head_wb_ena = info->headwb_enabled;
387 tx_ctx.head_wb_addr = info->dma_headwb_addr;
389 /* clear the context in the HMC */
390 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
392 dev_err(&pf->pdev->dev,
393 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
399 /* set the context in the HMC */
400 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
402 dev_err(&pf->pdev->dev,
403 "Failed to set VF LAN Tx queue context %d error: %d\n",
409 /* associate this queue with the PCI VF function */
410 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
411 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
412 & I40E_QTX_CTL_PF_INDX_MASK);
413 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
414 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
415 & I40E_QTX_CTL_VFVM_INDX_MASK);
416 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
424 * i40e_config_vsi_rx_queue
425 * @vf: pointer to the VF info
426 * @vsi_id: id of VSI as provided by the FW
427 * @vsi_queue_id: vsi relative queue index
428 * @info: config. info
432 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
434 struct i40e_virtchnl_rxq_info *info)
436 struct i40e_pf *pf = vf->pf;
437 struct i40e_hw *hw = &pf->hw;
438 struct i40e_hmc_obj_rxq rx_ctx;
442 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
444 /* clear the context structure first */
445 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
447 /* only set the required fields */
448 rx_ctx.base = info->dma_ring_addr / 128;
449 rx_ctx.qlen = info->ring_len;
451 if (info->splithdr_enabled) {
452 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
454 I40E_RX_SPLIT_TCP_UDP |
456 /* header length validation */
457 if (info->hdr_size > ((2 * 1024) - 64)) {
461 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
463 /* set splitalways mode 10b */
467 /* databuffer length validation */
468 if (info->databuffer_size > ((16 * 1024) - 128)) {
472 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
474 /* max pkt. length validation */
475 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
479 rx_ctx.rxmax = info->max_pkt_size;
481 /* enable 32bytes desc always */
485 rx_ctx.lrxqthresh = 2;
490 /* clear the context in the HMC */
491 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
493 dev_err(&pf->pdev->dev,
494 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
500 /* set the context in the HMC */
501 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
503 dev_err(&pf->pdev->dev,
504 "Failed to set VF LAN Rx queue context %d error: %d\n",
516 * @vf: pointer to the VF info
517 * @type: type of VSI to allocate
519 * alloc VF vsi context & resources
521 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
523 struct i40e_mac_filter *f = NULL;
524 struct i40e_pf *pf = vf->pf;
525 struct i40e_vsi *vsi;
528 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
531 dev_err(&pf->pdev->dev,
532 "add vsi failed for VF %d, aq_err %d\n",
533 vf->vf_id, pf->hw.aq.asq_last_status);
535 goto error_alloc_vsi_res;
537 if (type == I40E_VSI_SRIOV) {
538 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
540 vf->lan_vsi_idx = vsi->idx;
541 vf->lan_vsi_id = vsi->id;
542 /* If the port VLAN has been configured and then the
543 * VF driver was removed then the VSI port VLAN
544 * configuration was destroyed. Check if there is
545 * a port VLAN and restore the VSI configuration if
548 if (vf->port_vlan_id)
549 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
551 spin_lock_bh(&vsi->mac_filter_list_lock);
552 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
553 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
554 vf->port_vlan_id ? vf->port_vlan_id : -1,
557 dev_info(&pf->pdev->dev,
558 "Could not add MAC filter %pM for VF %d\n",
559 vf->default_lan_addr.addr, vf->vf_id);
561 f = i40e_add_filter(vsi, brdcast,
562 vf->port_vlan_id ? vf->port_vlan_id : -1,
565 dev_info(&pf->pdev->dev,
566 "Could not allocate VF broadcast filter\n");
567 spin_unlock_bh(&vsi->mac_filter_list_lock);
570 /* program mac filter */
571 ret = i40e_sync_vsi_filters(vsi, false);
573 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
575 /* Set VF bandwidth if specified */
577 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
578 vf->tx_rate / 50, 0, NULL);
580 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
589 * i40e_enable_vf_mappings
590 * @vf: pointer to the VF info
594 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
596 struct i40e_pf *pf = vf->pf;
597 struct i40e_hw *hw = &pf->hw;
598 u32 reg, total_queue_pairs = 0;
601 /* Tell the hardware we're using noncontiguous mapping. HW requires
602 * that VF queues be mapped using this method, even when they are
603 * contiguous in real life
605 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
606 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
608 /* enable VF vplan_qtable mappings */
609 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
610 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
612 /* map PF queues to VF queues */
613 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
614 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
616 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
617 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
621 /* map PF queues to VSI */
622 for (j = 0; j < 7; j++) {
623 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
624 reg = 0x07FF07FF; /* unused */
626 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
629 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
633 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
640 * i40e_disable_vf_mappings
641 * @vf: pointer to the VF info
643 * disable VF mappings
645 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
647 struct i40e_pf *pf = vf->pf;
648 struct i40e_hw *hw = &pf->hw;
651 /* disable qp mappings */
652 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
653 for (i = 0; i < I40E_MAX_VSI_QP; i++)
654 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
655 I40E_QUEUE_END_OF_LIST);
661 * @vf: pointer to the VF info
665 static void i40e_free_vf_res(struct i40e_vf *vf)
667 struct i40e_pf *pf = vf->pf;
668 struct i40e_hw *hw = &pf->hw;
672 /* free vsi & disconnect it from the parent uplink */
673 if (vf->lan_vsi_idx) {
674 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
678 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
680 /* disable interrupts so the VF starts in a known state */
681 for (i = 0; i < msix_vf; i++) {
682 /* format is same for both registers */
684 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
686 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
689 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
693 /* clear the irq settings */
694 for (i = 0; i < msix_vf; i++) {
695 /* format is same for both registers */
697 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
699 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
702 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
703 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
704 wr32(hw, reg_idx, reg);
707 /* reset some of the state varibles keeping
708 * track of the resources
710 vf->num_queue_pairs = 0;
712 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
717 * @vf: pointer to the VF info
719 * allocate VF resources
721 static int i40e_alloc_vf_res(struct i40e_vf *vf)
723 struct i40e_pf *pf = vf->pf;
724 int total_queue_pairs = 0;
727 /* allocate hw vsi context & associated resources */
728 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
731 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
732 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
734 /* store the total qps number for the runtime
737 vf->num_queue_pairs = total_queue_pairs;
739 /* VF is now completely initialized */
740 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
744 i40e_free_vf_res(vf);
749 #define VF_DEVICE_STATUS 0xAA
750 #define VF_TRANS_PENDING_MASK 0x20
752 * i40e_quiesce_vf_pci
753 * @vf: pointer to the VF structure
755 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
756 * if the transactions never clear.
758 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
760 struct i40e_pf *pf = vf->pf;
761 struct i40e_hw *hw = &pf->hw;
765 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
767 wr32(hw, I40E_PF_PCI_CIAA,
768 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
769 for (i = 0; i < 100; i++) {
770 reg = rd32(hw, I40E_PF_PCI_CIAD);
771 if ((reg & VF_TRANS_PENDING_MASK) == 0)
780 * @vf: pointer to the VF structure
781 * @flr: VFLR was issued or not
785 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
787 struct i40e_pf *pf = vf->pf;
788 struct i40e_hw *hw = &pf->hw;
793 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
797 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
799 /* In the case of a VFLR, the HW has already reset the VF and we
800 * just need to clean up, so don't hit the VFRTRIG register.
803 /* reset VF using VPGEN_VFRTRIG reg */
804 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
805 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
806 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
810 if (i40e_quiesce_vf_pci(vf))
811 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
814 /* poll VPGEN_VFRSTAT reg to make sure
815 * that reset is complete
817 for (i = 0; i < 10; i++) {
818 /* VF reset requires driver to first reset the VF and then
819 * poll the status register to make sure that the reset
820 * completed successfully. Due to internal HW FIFO flushes,
821 * we must wait 10ms before the register will be valid.
823 usleep_range(10000, 20000);
824 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
825 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
832 usleep_range(10000, 20000);
835 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
837 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
838 /* clear the reset bit in the VPGEN_VFRTRIG reg */
839 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
840 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
841 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
843 /* On initial reset, we won't have any queues */
844 if (vf->lan_vsi_idx == 0)
847 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
849 /* reallocate VF resources to reset the VSI state */
850 i40e_free_vf_res(vf);
851 if (!i40e_alloc_vf_res(vf)) {
852 i40e_enable_vf_mappings(vf);
853 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
854 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
856 /* tell the VF the reset is done */
857 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
859 clear_bit(__I40E_VF_DISABLE, &pf->state);
864 * @pf: pointer to the PF structure
868 void i40e_free_vfs(struct i40e_pf *pf)
870 struct i40e_hw *hw = &pf->hw;
871 u32 reg_idx, bit_idx;
876 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
877 usleep_range(1000, 2000);
879 for (i = 0; i < pf->num_alloc_vfs; i++)
880 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
881 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
884 for (i = 0; i < pf->num_alloc_vfs; i++)
885 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
886 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
889 /* Disable IOV before freeing resources. This lets any VF drivers
890 * running in the host get themselves cleaned up before we yank
891 * the carpet out from underneath their feet.
893 if (!pci_vfs_assigned(pf->pdev))
894 pci_disable_sriov(pf->pdev);
896 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
898 msleep(20); /* let any messages in transit get finished up */
900 /* free up VF resources */
901 tmp = pf->num_alloc_vfs;
902 pf->num_alloc_vfs = 0;
903 for (i = 0; i < tmp; i++) {
904 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
905 i40e_free_vf_res(&pf->vf[i]);
906 /* disable qp mappings */
907 i40e_disable_vf_mappings(&pf->vf[i]);
913 /* This check is for when the driver is unloaded while VFs are
914 * assigned. Setting the number of VFs to 0 through sysfs is caught
915 * before this function ever gets called.
917 if (!pci_vfs_assigned(pf->pdev)) {
918 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
919 * work correctly when SR-IOV gets re-enabled.
921 for (vf_id = 0; vf_id < tmp; vf_id++) {
922 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
923 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
924 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
927 clear_bit(__I40E_VF_DISABLE, &pf->state);
930 #ifdef CONFIG_PCI_IOV
933 * @pf: pointer to the PF structure
934 * @num_alloc_vfs: number of VFs to allocate
936 * allocate VF resources
938 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
943 /* Disable interrupt 0 so we don't try to handle the VFLR. */
944 i40e_irq_dynamic_disable_icr0(pf);
946 /* Check to see if we're just allocating resources for extant VFs */
947 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
948 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
950 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
951 pf->num_alloc_vfs = 0;
955 /* allocate memory */
956 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
963 /* apply default profile */
964 for (i = 0; i < num_alloc_vfs; i++) {
966 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
969 /* assign default capabilities */
970 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
971 vfs[i].spoofchk = true;
972 /* VF resources get allocated during reset */
973 i40e_reset_vf(&vfs[i], false);
976 pf->num_alloc_vfs = num_alloc_vfs;
982 /* Re-enable interrupt 0. */
983 i40e_irq_dynamic_enable_icr0(pf);
989 * i40e_pci_sriov_enable
990 * @pdev: pointer to a pci_dev structure
991 * @num_vfs: number of VFs to allocate
993 * Enable or change the number of VFs
995 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
997 #ifdef CONFIG_PCI_IOV
998 struct i40e_pf *pf = pci_get_drvdata(pdev);
999 int pre_existing_vfs = pci_num_vf(pdev);
1002 if (test_bit(__I40E_TESTING, &pf->state)) {
1003 dev_warn(&pdev->dev,
1004 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1009 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1011 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1014 if (num_vfs > pf->num_req_vfs) {
1015 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1016 num_vfs, pf->num_req_vfs);
1021 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1022 err = i40e_alloc_vfs(pf, num_vfs);
1024 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1038 * i40e_pci_sriov_configure
1039 * @pdev: pointer to a pci_dev structure
1040 * @num_vfs: number of VFs to allocate
1042 * Enable or change the number of VFs. Called when the user updates the number
1045 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1047 struct i40e_pf *pf = pci_get_drvdata(pdev);
1050 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1051 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1052 i40e_do_reset_safe(pf,
1053 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1055 return i40e_pci_sriov_enable(pdev, num_vfs);
1058 if (!pci_vfs_assigned(pf->pdev)) {
1060 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1061 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1063 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1069 /***********************virtual channel routines******************/
1072 * i40e_vc_send_msg_to_vf
1073 * @vf: pointer to the VF info
1074 * @v_opcode: virtual channel opcode
1075 * @v_retval: virtual channel return value
1076 * @msg: pointer to the msg buffer
1077 * @msglen: msg length
1081 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1082 u32 v_retval, u8 *msg, u16 msglen)
1089 /* validate the request */
1090 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1095 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1097 /* single place to detect unsuccessful return values */
1099 vf->num_invalid_msgs++;
1100 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1101 v_opcode, v_retval);
1102 if (vf->num_invalid_msgs >
1103 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1104 dev_err(&pf->pdev->dev,
1105 "Number of invalid messages exceeded for VF %d\n",
1107 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1108 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1111 vf->num_valid_msgs++;
1112 /* reset the invalid counter, if a valid message is received. */
1113 vf->num_invalid_msgs = 0;
1116 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1119 dev_err(&pf->pdev->dev,
1120 "Unable to send the message to VF %d aq_err %d\n",
1121 vf->vf_id, pf->hw.aq.asq_last_status);
1129 * i40e_vc_send_resp_to_vf
1130 * @vf: pointer to the VF info
1131 * @opcode: operation code
1132 * @retval: return value
1134 * send resp msg to VF
1136 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1137 enum i40e_virtchnl_ops opcode,
1140 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1144 * i40e_vc_get_version_msg
1145 * @vf: pointer to the VF info
1147 * called from the VF to request the API version used by the PF
1149 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1151 struct i40e_virtchnl_version_info info = {
1152 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1155 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1156 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1158 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1159 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1160 I40E_SUCCESS, (u8 *)&info,
1162 i40e_virtchnl_version_info));
1166 * i40e_vc_get_vf_resources_msg
1167 * @vf: pointer to the VF info
1168 * @msg: pointer to the msg buffer
1169 * @msglen: msg length
1171 * called from the VF to request its resources
1173 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1175 struct i40e_virtchnl_vf_resource *vfres = NULL;
1176 struct i40e_pf *pf = vf->pf;
1177 i40e_status aq_ret = 0;
1178 struct i40e_vsi *vsi;
1183 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1184 aq_ret = I40E_ERR_PARAM;
1188 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1189 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1191 vfres = kzalloc(len, GFP_KERNEL);
1193 aq_ret = I40E_ERR_NO_MEMORY;
1198 vf->driver_caps = *(u32 *)msg;
1200 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1201 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1202 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1204 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1205 vsi = pf->vsi[vf->lan_vsi_idx];
1206 if (!vsi->info.pvid)
1207 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1208 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
1209 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1210 vfres->vf_offload_flags |=
1211 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1213 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1216 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1217 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1219 vfres->num_vsis = num_vsis;
1220 vfres->num_queue_pairs = vf->num_queue_pairs;
1221 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1222 if (vf->lan_vsi_idx) {
1223 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1224 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1225 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
1226 /* VFs only use TC 0 */
1227 vfres->vsi_res[i].qset_handle
1228 = le16_to_cpu(vsi->info.qs_handle[0]);
1229 ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
1230 vf->default_lan_addr.addr);
1233 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1236 /* send the response back to the VF */
1237 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1238 aq_ret, (u8 *)vfres, len);
1245 * i40e_vc_reset_vf_msg
1246 * @vf: pointer to the VF info
1247 * @msg: pointer to the msg buffer
1248 * @msglen: msg length
1250 * called from the VF to reset itself,
1251 * unlike other virtchnl messages, PF driver
1252 * doesn't send the response back to the VF
1254 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1256 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1257 i40e_reset_vf(vf, false);
1261 * i40e_vc_config_promiscuous_mode_msg
1262 * @vf: pointer to the VF info
1263 * @msg: pointer to the msg buffer
1264 * @msglen: msg length
1266 * called from the VF to configure the promiscuous mode of
1269 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1270 u8 *msg, u16 msglen)
1272 struct i40e_virtchnl_promisc_info *info =
1273 (struct i40e_virtchnl_promisc_info *)msg;
1274 struct i40e_pf *pf = vf->pf;
1275 struct i40e_hw *hw = &pf->hw;
1276 struct i40e_vsi *vsi;
1277 bool allmulti = false;
1280 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1281 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1282 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1283 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1284 (vsi->type != I40E_VSI_FCOE)) {
1285 aq_ret = I40E_ERR_PARAM;
1288 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1290 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1294 /* send the response to the VF */
1295 return i40e_vc_send_resp_to_vf(vf,
1296 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1301 * i40e_vc_config_queues_msg
1302 * @vf: pointer to the VF info
1303 * @msg: pointer to the msg buffer
1304 * @msglen: msg length
1306 * called from the VF to configure the rx/tx
1309 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1311 struct i40e_virtchnl_vsi_queue_config_info *qci =
1312 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1313 struct i40e_virtchnl_queue_pair_info *qpi;
1314 struct i40e_pf *pf = vf->pf;
1315 u16 vsi_id, vsi_queue_id;
1316 i40e_status aq_ret = 0;
1319 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1320 aq_ret = I40E_ERR_PARAM;
1324 vsi_id = qci->vsi_id;
1325 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1326 aq_ret = I40E_ERR_PARAM;
1329 for (i = 0; i < qci->num_queue_pairs; i++) {
1330 qpi = &qci->qpair[i];
1331 vsi_queue_id = qpi->txq.queue_id;
1332 if ((qpi->txq.vsi_id != vsi_id) ||
1333 (qpi->rxq.vsi_id != vsi_id) ||
1334 (qpi->rxq.queue_id != vsi_queue_id) ||
1335 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1336 aq_ret = I40E_ERR_PARAM;
1340 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1342 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1344 aq_ret = I40E_ERR_PARAM;
1348 /* set vsi num_queue_pairs in use to num configured by VF */
1349 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1352 /* send the response to the VF */
1353 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1358 * i40e_vc_config_irq_map_msg
1359 * @vf: pointer to the VF info
1360 * @msg: pointer to the msg buffer
1361 * @msglen: msg length
1363 * called from the VF to configure the irq to
1366 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1368 struct i40e_virtchnl_irq_map_info *irqmap_info =
1369 (struct i40e_virtchnl_irq_map_info *)msg;
1370 struct i40e_virtchnl_vector_map *map;
1371 u16 vsi_id, vsi_queue_id, vector_id;
1372 i40e_status aq_ret = 0;
1373 unsigned long tempmap;
1376 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1377 aq_ret = I40E_ERR_PARAM;
1381 for (i = 0; i < irqmap_info->num_vectors; i++) {
1382 map = &irqmap_info->vecmap[i];
1384 vector_id = map->vector_id;
1385 vsi_id = map->vsi_id;
1386 /* validate msg params */
1387 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1388 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1389 aq_ret = I40E_ERR_PARAM;
1393 /* lookout for the invalid queue index */
1394 tempmap = map->rxq_map;
1395 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1396 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1398 aq_ret = I40E_ERR_PARAM;
1403 tempmap = map->txq_map;
1404 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1405 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1407 aq_ret = I40E_ERR_PARAM;
1412 i40e_config_irq_link_list(vf, vsi_id, map);
1415 /* send the response to the VF */
1416 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1421 * i40e_vc_enable_queues_msg
1422 * @vf: pointer to the VF info
1423 * @msg: pointer to the msg buffer
1424 * @msglen: msg length
1426 * called from the VF to enable all or specific queue(s)
1428 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1430 struct i40e_virtchnl_queue_select *vqs =
1431 (struct i40e_virtchnl_queue_select *)msg;
1432 struct i40e_pf *pf = vf->pf;
1433 u16 vsi_id = vqs->vsi_id;
1434 i40e_status aq_ret = 0;
1436 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1437 aq_ret = I40E_ERR_PARAM;
1441 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1442 aq_ret = I40E_ERR_PARAM;
1446 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1447 aq_ret = I40E_ERR_PARAM;
1451 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1452 aq_ret = I40E_ERR_TIMEOUT;
1454 /* send the response to the VF */
1455 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1460 * i40e_vc_disable_queues_msg
1461 * @vf: pointer to the VF info
1462 * @msg: pointer to the msg buffer
1463 * @msglen: msg length
1465 * called from the VF to disable all or specific
1468 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1470 struct i40e_virtchnl_queue_select *vqs =
1471 (struct i40e_virtchnl_queue_select *)msg;
1472 struct i40e_pf *pf = vf->pf;
1473 i40e_status aq_ret = 0;
1475 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1476 aq_ret = I40E_ERR_PARAM;
1480 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1481 aq_ret = I40E_ERR_PARAM;
1485 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1486 aq_ret = I40E_ERR_PARAM;
1490 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1491 aq_ret = I40E_ERR_TIMEOUT;
1494 /* send the response to the VF */
1495 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1500 * i40e_vc_get_stats_msg
1501 * @vf: pointer to the VF info
1502 * @msg: pointer to the msg buffer
1503 * @msglen: msg length
1505 * called from the VF to get vsi stats
1507 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1509 struct i40e_virtchnl_queue_select *vqs =
1510 (struct i40e_virtchnl_queue_select *)msg;
1511 struct i40e_pf *pf = vf->pf;
1512 struct i40e_eth_stats stats;
1513 i40e_status aq_ret = 0;
1514 struct i40e_vsi *vsi;
1516 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1518 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1519 aq_ret = I40E_ERR_PARAM;
1523 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1524 aq_ret = I40E_ERR_PARAM;
1528 vsi = pf->vsi[vf->lan_vsi_idx];
1530 aq_ret = I40E_ERR_PARAM;
1533 i40e_update_eth_stats(vsi);
1534 stats = vsi->eth_stats;
1537 /* send the response back to the VF */
1538 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1539 (u8 *)&stats, sizeof(stats));
1543 * i40e_check_vf_permission
1544 * @vf: pointer to the VF info
1545 * @macaddr: pointer to the MAC Address being checked
1547 * Check if the VF has permission to add or delete unicast MAC address
1548 * filters and return error code -EPERM if not. Then check if the
1549 * address filter requested is broadcast or zero and if so return
1550 * an invalid MAC address error code.
1552 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1554 struct i40e_pf *pf = vf->pf;
1557 if (is_broadcast_ether_addr(macaddr) ||
1558 is_zero_ether_addr(macaddr)) {
1559 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1560 ret = I40E_ERR_INVALID_MAC_ADDR;
1561 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1562 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1563 /* If the host VMM administrator has set the VF MAC address
1564 * administratively via the ndo_set_vf_mac command then deny
1565 * permission to the VF to add or delete unicast MAC addresses.
1566 * The VF may request to set the MAC address filter already
1567 * assigned to it so do not return an error in that case.
1569 dev_err(&pf->pdev->dev,
1570 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1577 * i40e_vc_add_mac_addr_msg
1578 * @vf: pointer to the VF info
1579 * @msg: pointer to the msg buffer
1580 * @msglen: msg length
1582 * add guest mac address filter
1584 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1586 struct i40e_virtchnl_ether_addr_list *al =
1587 (struct i40e_virtchnl_ether_addr_list *)msg;
1588 struct i40e_pf *pf = vf->pf;
1589 struct i40e_vsi *vsi = NULL;
1590 u16 vsi_id = al->vsi_id;
1591 i40e_status ret = 0;
1594 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1595 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1596 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1597 ret = I40E_ERR_PARAM;
1601 for (i = 0; i < al->num_elements; i++) {
1602 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1606 vsi = pf->vsi[vf->lan_vsi_idx];
1608 /* Lock once, because all function inside for loop accesses VSI's
1609 * MAC filter list which needs to be protected using same lock.
1611 spin_lock_bh(&vsi->mac_filter_list_lock);
1613 /* add new addresses to the list */
1614 for (i = 0; i < al->num_elements; i++) {
1615 struct i40e_mac_filter *f;
1617 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1619 if (i40e_is_vsi_in_vlan(vsi))
1620 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1623 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1628 dev_err(&pf->pdev->dev,
1629 "Unable to add VF MAC filter\n");
1630 ret = I40E_ERR_PARAM;
1631 spin_unlock_bh(&vsi->mac_filter_list_lock);
1635 spin_unlock_bh(&vsi->mac_filter_list_lock);
1637 /* program the updated filter list */
1638 if (i40e_sync_vsi_filters(vsi, false))
1639 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1642 /* send the response to the VF */
1643 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1648 * i40e_vc_del_mac_addr_msg
1649 * @vf: pointer to the VF info
1650 * @msg: pointer to the msg buffer
1651 * @msglen: msg length
1653 * remove guest mac address filter
1655 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1657 struct i40e_virtchnl_ether_addr_list *al =
1658 (struct i40e_virtchnl_ether_addr_list *)msg;
1659 struct i40e_pf *pf = vf->pf;
1660 struct i40e_vsi *vsi = NULL;
1661 u16 vsi_id = al->vsi_id;
1662 i40e_status ret = 0;
1665 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1666 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1667 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1668 ret = I40E_ERR_PARAM;
1672 for (i = 0; i < al->num_elements; i++) {
1673 if (is_broadcast_ether_addr(al->list[i].addr) ||
1674 is_zero_ether_addr(al->list[i].addr)) {
1675 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1677 ret = I40E_ERR_INVALID_MAC_ADDR;
1681 vsi = pf->vsi[vf->lan_vsi_idx];
1683 spin_lock_bh(&vsi->mac_filter_list_lock);
1684 /* delete addresses from the list */
1685 for (i = 0; i < al->num_elements; i++)
1686 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1687 ret = I40E_ERR_INVALID_MAC_ADDR;
1688 spin_unlock_bh(&vsi->mac_filter_list_lock);
1692 spin_unlock_bh(&vsi->mac_filter_list_lock);
1694 /* program the updated filter list */
1695 if (i40e_sync_vsi_filters(vsi, false))
1696 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1699 /* send the response to the VF */
1700 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1705 * i40e_vc_add_vlan_msg
1706 * @vf: pointer to the VF info
1707 * @msg: pointer to the msg buffer
1708 * @msglen: msg length
1710 * program guest vlan id
1712 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1714 struct i40e_virtchnl_vlan_filter_list *vfl =
1715 (struct i40e_virtchnl_vlan_filter_list *)msg;
1716 struct i40e_pf *pf = vf->pf;
1717 struct i40e_vsi *vsi = NULL;
1718 u16 vsi_id = vfl->vsi_id;
1719 i40e_status aq_ret = 0;
1722 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1723 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1724 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1725 aq_ret = I40E_ERR_PARAM;
1729 for (i = 0; i < vfl->num_elements; i++) {
1730 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1731 aq_ret = I40E_ERR_PARAM;
1732 dev_err(&pf->pdev->dev,
1733 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1737 vsi = pf->vsi[vf->lan_vsi_idx];
1738 if (vsi->info.pvid) {
1739 aq_ret = I40E_ERR_PARAM;
1743 i40e_vlan_stripping_enable(vsi);
1744 for (i = 0; i < vfl->num_elements; i++) {
1745 /* add new VLAN filter */
1746 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1749 dev_err(&pf->pdev->dev,
1750 "Unable to add VF vlan filter %d, error %d\n",
1751 vfl->vlan_id[i], ret);
1755 /* send the response to the VF */
1756 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1760 * i40e_vc_remove_vlan_msg
1761 * @vf: pointer to the VF info
1762 * @msg: pointer to the msg buffer
1763 * @msglen: msg length
1765 * remove programmed guest vlan id
1767 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1769 struct i40e_virtchnl_vlan_filter_list *vfl =
1770 (struct i40e_virtchnl_vlan_filter_list *)msg;
1771 struct i40e_pf *pf = vf->pf;
1772 struct i40e_vsi *vsi = NULL;
1773 u16 vsi_id = vfl->vsi_id;
1774 i40e_status aq_ret = 0;
1777 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1778 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1779 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1780 aq_ret = I40E_ERR_PARAM;
1784 for (i = 0; i < vfl->num_elements; i++) {
1785 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1786 aq_ret = I40E_ERR_PARAM;
1791 vsi = pf->vsi[vf->lan_vsi_idx];
1792 if (vsi->info.pvid) {
1793 aq_ret = I40E_ERR_PARAM;
1797 for (i = 0; i < vfl->num_elements; i++) {
1798 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1801 dev_err(&pf->pdev->dev,
1802 "Unable to delete VF vlan filter %d, error %d\n",
1803 vfl->vlan_id[i], ret);
1807 /* send the response to the VF */
1808 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1812 * i40e_vc_validate_vf_msg
1813 * @vf: pointer to the VF info
1814 * @msg: pointer to the msg buffer
1815 * @msglen: msg length
1816 * @msghndl: msg handle
1820 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1821 u32 v_retval, u8 *msg, u16 msglen)
1823 bool err_msg_format = false;
1826 /* Check if VF is disabled. */
1827 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1828 return I40E_ERR_PARAM;
1830 /* Validate message length. */
1832 case I40E_VIRTCHNL_OP_VERSION:
1833 valid_len = sizeof(struct i40e_virtchnl_version_info);
1835 case I40E_VIRTCHNL_OP_RESET_VF:
1838 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1840 valid_len = sizeof(u32);
1844 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1845 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1847 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1848 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1850 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1851 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1852 if (msglen >= valid_len) {
1853 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1854 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1855 valid_len += (vqc->num_queue_pairs *
1857 i40e_virtchnl_queue_pair_info));
1858 if (vqc->num_queue_pairs == 0)
1859 err_msg_format = true;
1862 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1863 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1864 if (msglen >= valid_len) {
1865 struct i40e_virtchnl_irq_map_info *vimi =
1866 (struct i40e_virtchnl_irq_map_info *)msg;
1867 valid_len += (vimi->num_vectors *
1868 sizeof(struct i40e_virtchnl_vector_map));
1869 if (vimi->num_vectors == 0)
1870 err_msg_format = true;
1873 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1874 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1875 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1877 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1878 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1879 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1880 if (msglen >= valid_len) {
1881 struct i40e_virtchnl_ether_addr_list *veal =
1882 (struct i40e_virtchnl_ether_addr_list *)msg;
1883 valid_len += veal->num_elements *
1884 sizeof(struct i40e_virtchnl_ether_addr);
1885 if (veal->num_elements == 0)
1886 err_msg_format = true;
1889 case I40E_VIRTCHNL_OP_ADD_VLAN:
1890 case I40E_VIRTCHNL_OP_DEL_VLAN:
1891 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1892 if (msglen >= valid_len) {
1893 struct i40e_virtchnl_vlan_filter_list *vfl =
1894 (struct i40e_virtchnl_vlan_filter_list *)msg;
1895 valid_len += vfl->num_elements * sizeof(u16);
1896 if (vfl->num_elements == 0)
1897 err_msg_format = true;
1900 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1901 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1903 case I40E_VIRTCHNL_OP_GET_STATS:
1904 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1906 /* These are always errors coming from the VF. */
1907 case I40E_VIRTCHNL_OP_EVENT:
1908 case I40E_VIRTCHNL_OP_UNKNOWN:
1912 /* few more checks */
1913 if ((valid_len != msglen) || (err_msg_format)) {
1914 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1922 * i40e_vc_process_vf_msg
1923 * @pf: pointer to the PF structure
1924 * @vf_id: source VF id
1925 * @msg: pointer to the msg buffer
1926 * @msglen: msg length
1927 * @msghndl: msg handle
1929 * called from the common aeq/arq handler to
1930 * process request from VF
1932 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1933 u32 v_retval, u8 *msg, u16 msglen)
1935 struct i40e_hw *hw = &pf->hw;
1936 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1940 pf->vf_aq_requests++;
1941 if (local_vf_id >= pf->num_alloc_vfs)
1943 vf = &(pf->vf[local_vf_id]);
1944 /* perform basic checks on the msg */
1945 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1948 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1949 local_vf_id, v_opcode, msglen);
1954 case I40E_VIRTCHNL_OP_VERSION:
1955 ret = i40e_vc_get_version_msg(vf, msg);
1957 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1958 ret = i40e_vc_get_vf_resources_msg(vf, msg);
1960 case I40E_VIRTCHNL_OP_RESET_VF:
1961 i40e_vc_reset_vf_msg(vf);
1964 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1965 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1967 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1968 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1970 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1971 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1973 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1974 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1975 i40e_vc_notify_vf_link_state(vf);
1977 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1978 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1980 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1981 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1983 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1984 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1986 case I40E_VIRTCHNL_OP_ADD_VLAN:
1987 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1989 case I40E_VIRTCHNL_OP_DEL_VLAN:
1990 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1992 case I40E_VIRTCHNL_OP_GET_STATS:
1993 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1995 case I40E_VIRTCHNL_OP_UNKNOWN:
1997 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
1998 v_opcode, local_vf_id);
1999 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2000 I40E_ERR_NOT_IMPLEMENTED);
2008 * i40e_vc_process_vflr_event
2009 * @pf: pointer to the PF structure
2011 * called from the vlfr irq handler to
2012 * free up VF resources and state variables
2014 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2016 u32 reg, reg_idx, bit_idx, vf_id;
2017 struct i40e_hw *hw = &pf->hw;
2020 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2023 /* re-enable vflr interrupt cause */
2024 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2025 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2026 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2029 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2030 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2031 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2032 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2033 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2034 vf = &pf->vf[vf_id];
2035 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2036 if (reg & BIT(bit_idx)) {
2037 /* clear the bit in GLGEN_VFLRSTAT */
2038 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
2040 if (!test_bit(__I40E_DOWN, &pf->state))
2041 i40e_reset_vf(vf, true);
2049 * i40e_ndo_set_vf_mac
2050 * @netdev: network interface device structure
2051 * @vf_id: VF identifier
2054 * program VF mac address
2056 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2058 struct i40e_netdev_priv *np = netdev_priv(netdev);
2059 struct i40e_vsi *vsi = np->vsi;
2060 struct i40e_pf *pf = vsi->back;
2061 struct i40e_mac_filter *f;
2065 /* validate the request */
2066 if (vf_id >= pf->num_alloc_vfs) {
2067 dev_err(&pf->pdev->dev,
2068 "Invalid VF Identifier %d\n", vf_id);
2073 vf = &(pf->vf[vf_id]);
2074 vsi = pf->vsi[vf->lan_vsi_idx];
2075 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2076 dev_err(&pf->pdev->dev,
2077 "Uninitialized VF %d\n", vf_id);
2082 if (!is_valid_ether_addr(mac)) {
2083 dev_err(&pf->pdev->dev,
2084 "Invalid VF ethernet address\n");
2089 /* Lock once because below invoked function add/del_filter requires
2090 * mac_filter_list_lock to be held
2092 spin_lock_bh(&vsi->mac_filter_list_lock);
2094 /* delete the temporary mac address */
2095 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2096 vf->port_vlan_id ? vf->port_vlan_id : -1,
2099 /* Delete all the filters for this VSI - we're going to kill it
2102 list_for_each_entry(f, &vsi->mac_filter_list, list)
2103 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2105 spin_unlock_bh(&vsi->mac_filter_list_lock);
2107 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2108 /* program mac filter */
2109 if (i40e_sync_vsi_filters(vsi, false)) {
2110 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2114 ether_addr_copy(vf->default_lan_addr.addr, mac);
2115 vf->pf_set_mac = true;
2116 /* Force the VF driver stop so it has to reload with new MAC address */
2117 i40e_vc_disable_vf(pf, vf);
2118 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2125 * i40e_ndo_set_vf_port_vlan
2126 * @netdev: network interface device structure
2127 * @vf_id: VF identifier
2128 * @vlan_id: mac address
2129 * @qos: priority setting
2131 * program VF vlan id and/or qos
2133 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2134 int vf_id, u16 vlan_id, u8 qos)
2136 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2137 struct i40e_netdev_priv *np = netdev_priv(netdev);
2138 struct i40e_pf *pf = np->vsi->back;
2139 bool is_vsi_in_vlan = false;
2140 struct i40e_vsi *vsi;
2144 /* validate the request */
2145 if (vf_id >= pf->num_alloc_vfs) {
2146 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2151 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2152 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2157 vf = &(pf->vf[vf_id]);
2158 vsi = pf->vsi[vf->lan_vsi_idx];
2159 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2160 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2165 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2166 /* duplicate request, so just return success */
2169 spin_lock_bh(&vsi->mac_filter_list_lock);
2170 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2171 spin_unlock_bh(&vsi->mac_filter_list_lock);
2173 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2174 dev_err(&pf->pdev->dev,
2175 "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",
2177 /* Administrator Error - knock the VF offline until he does
2178 * the right thing by reconfiguring his network correctly
2179 * and then reloading the VF driver.
2181 i40e_vc_disable_vf(pf, vf);
2184 /* Check for condition where there was already a port VLAN ID
2185 * filter set and now it is being deleted by setting it to zero.
2186 * Additionally check for the condition where there was a port
2187 * VLAN but now there is a new and different port VLAN being set.
2188 * Before deleting all the old VLAN filters we must add new ones
2189 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2190 * MAC addresses deleted.
2192 if ((!(vlan_id || qos) ||
2193 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2195 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2197 if (vsi->info.pvid) {
2199 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2202 dev_info(&vsi->back->pdev->dev,
2203 "remove VLAN failed, ret=%d, aq_err=%d\n",
2204 ret, pf->hw.aq.asq_last_status);
2208 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2210 i40e_vsi_remove_pvid(vsi);
2213 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2214 vlan_id, qos, vf_id);
2216 /* add new VLAN filter */
2217 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2219 dev_info(&vsi->back->pdev->dev,
2220 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2221 vsi->back->hw.aq.asq_last_status);
2224 /* Kill non-vlan MAC filters - ignore error return since
2225 * there might not be any non-vlan MAC filters.
2227 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2231 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2234 /* The Port VLAN needs to be saved across resets the same as the
2235 * default LAN MAC address.
2237 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2244 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2245 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2247 * i40e_ndo_set_vf_bw
2248 * @netdev: network interface device structure
2249 * @vf_id: VF identifier
2252 * configure VF Tx rate
2254 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2257 struct i40e_netdev_priv *np = netdev_priv(netdev);
2258 struct i40e_pf *pf = np->vsi->back;
2259 struct i40e_vsi *vsi;
2264 /* validate the request */
2265 if (vf_id >= pf->num_alloc_vfs) {
2266 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2272 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2273 min_tx_rate, vf_id);
2277 vf = &(pf->vf[vf_id]);
2278 vsi = pf->vsi[vf->lan_vsi_idx];
2279 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2280 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2285 switch (pf->hw.phy.link_info.link_speed) {
2286 case I40E_LINK_SPEED_40GB:
2289 case I40E_LINK_SPEED_10GB:
2292 case I40E_LINK_SPEED_1GB:
2299 if (max_tx_rate > speed) {
2300 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2301 max_tx_rate, vf->vf_id);
2306 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2307 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2311 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2312 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2313 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2314 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2316 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2321 vf->tx_rate = max_tx_rate;
2327 * i40e_ndo_get_vf_config
2328 * @netdev: network interface device structure
2329 * @vf_id: VF identifier
2330 * @ivi: VF configuration structure
2332 * return VF configuration
2334 int i40e_ndo_get_vf_config(struct net_device *netdev,
2335 int vf_id, struct ifla_vf_info *ivi)
2337 struct i40e_netdev_priv *np = netdev_priv(netdev);
2338 struct i40e_vsi *vsi = np->vsi;
2339 struct i40e_pf *pf = vsi->back;
2343 /* validate the request */
2344 if (vf_id >= pf->num_alloc_vfs) {
2345 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2350 vf = &(pf->vf[vf_id]);
2351 /* first vsi is always the LAN vsi */
2352 vsi = pf->vsi[vf->lan_vsi_idx];
2353 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2354 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2361 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2363 ivi->max_tx_rate = vf->tx_rate;
2364 ivi->min_tx_rate = 0;
2365 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2366 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2367 I40E_VLAN_PRIORITY_SHIFT;
2368 if (vf->link_forced == false)
2369 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2370 else if (vf->link_up == true)
2371 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2373 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2374 ivi->spoofchk = vf->spoofchk;
2382 * i40e_ndo_set_vf_link_state
2383 * @netdev: network interface device structure
2384 * @vf_id: VF identifier
2385 * @link: required link state
2387 * Set the link state of a specified VF, regardless of physical link state
2389 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2391 struct i40e_netdev_priv *np = netdev_priv(netdev);
2392 struct i40e_pf *pf = np->vsi->back;
2393 struct i40e_virtchnl_pf_event pfe;
2394 struct i40e_hw *hw = &pf->hw;
2399 /* validate the request */
2400 if (vf_id >= pf->num_alloc_vfs) {
2401 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2406 vf = &pf->vf[vf_id];
2407 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2409 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2410 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2413 case IFLA_VF_LINK_STATE_AUTO:
2414 vf->link_forced = false;
2415 pfe.event_data.link_event.link_status =
2416 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2417 pfe.event_data.link_event.link_speed =
2418 pf->hw.phy.link_info.link_speed;
2420 case IFLA_VF_LINK_STATE_ENABLE:
2421 vf->link_forced = true;
2423 pfe.event_data.link_event.link_status = true;
2424 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2426 case IFLA_VF_LINK_STATE_DISABLE:
2427 vf->link_forced = true;
2428 vf->link_up = false;
2429 pfe.event_data.link_event.link_status = false;
2430 pfe.event_data.link_event.link_speed = 0;
2436 /* Notify the VF of its new link state */
2437 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2438 0, (u8 *)&pfe, sizeof(pfe), NULL);
2445 * i40e_ndo_set_vf_spoofchk
2446 * @netdev: network interface device structure
2447 * @vf_id: VF identifier
2448 * @enable: flag to enable or disable feature
2450 * Enable or disable VF spoof checking
2452 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2454 struct i40e_netdev_priv *np = netdev_priv(netdev);
2455 struct i40e_vsi *vsi = np->vsi;
2456 struct i40e_pf *pf = vsi->back;
2457 struct i40e_vsi_context ctxt;
2458 struct i40e_hw *hw = &pf->hw;
2462 /* validate the request */
2463 if (vf_id >= pf->num_alloc_vfs) {
2464 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2469 vf = &(pf->vf[vf_id]);
2471 if (enable == vf->spoofchk)
2474 vf->spoofchk = enable;
2475 memset(&ctxt, 0, sizeof(ctxt));
2476 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2477 ctxt.pf_num = pf->hw.pf_id;
2478 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2480 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2481 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2482 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2484 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",