1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 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 /***********************misc routines*****************************/
32 * i40e_vc_isvalid_vsi_id
33 * @vf: pointer to the vf info
34 * @vsi_id: vf relative vsi id
36 * check for the valid vsi id
38 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u8 vsi_id)
40 struct i40e_pf *pf = vf->pf;
42 return pf->vsi[vsi_id]->vf_id == vf->vf_id;
46 * i40e_vc_isvalid_queue_id
47 * @vf: pointer to the vf info
49 * @qid: vsi relative queue id
51 * check for the valid queue id
53 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u8 vsi_id,
56 struct i40e_pf *pf = vf->pf;
58 return qid < pf->vsi[vsi_id]->num_queue_pairs;
62 * i40e_vc_isvalid_vector_id
63 * @vf: pointer to the vf info
64 * @vector_id: vf relative vector id
66 * check for the valid vector id
68 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
70 struct i40e_pf *pf = vf->pf;
72 return vector_id <= pf->hw.func_caps.num_msix_vectors_vf;
75 /***********************vf resource mgmt routines*****************/
78 * i40e_vc_get_pf_queue_id
79 * @vf: pointer to the vf info
80 * @vsi_idx: index of VSI in PF struct
81 * @vsi_queue_id: vsi relative queue id
83 * return pf relative queue id
85 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u8 vsi_idx,
88 struct i40e_pf *pf = vf->pf;
89 struct i40e_vsi *vsi = pf->vsi[vsi_idx];
90 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
92 if (le16_to_cpu(vsi->info.mapping_flags) &
93 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
95 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
97 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
104 * i40e_config_irq_link_list
105 * @vf: pointer to the vf info
106 * @vsi_idx: index of VSI in PF struct
107 * @vecmap: irq map info
109 * configure irq link list from the map
111 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
112 struct i40e_virtchnl_vector_map *vecmap)
114 unsigned long linklistmap = 0, tempmap;
115 struct i40e_pf *pf = vf->pf;
116 struct i40e_hw *hw = &pf->hw;
117 u16 vsi_queue_id, pf_queue_id;
118 enum i40e_queue_type qtype;
119 u16 next_q, vector_id;
123 vector_id = vecmap->vector_id;
126 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
128 reg_idx = I40E_VPINT_LNKLSTN(
129 (pf->hw.func_caps.num_msix_vectors_vf
130 * vf->vf_id) + (vector_id - 1));
132 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
133 /* Special case - No queues mapped on this vector */
134 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
137 tempmap = vecmap->rxq_map;
138 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
140 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
144 tempmap = vecmap->txq_map;
145 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
147 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
151 next_q = find_first_bit(&linklistmap,
153 I40E_VIRTCHNL_SUPPORTED_QTYPES));
154 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
155 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
156 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
157 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
159 wr32(hw, reg_idx, reg);
161 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
163 case I40E_QUEUE_TYPE_RX:
164 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
165 itr_idx = vecmap->rxitr_idx;
167 case I40E_QUEUE_TYPE_TX:
168 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
169 itr_idx = vecmap->txitr_idx;
175 next_q = find_next_bit(&linklistmap,
177 I40E_VIRTCHNL_SUPPORTED_QTYPES),
180 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
181 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
182 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
183 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx,
186 pf_queue_id = I40E_QUEUE_END_OF_LIST;
190 /* format for the RQCTL & TQCTL regs is same */
192 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
193 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
194 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
195 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
196 wr32(hw, reg_idx, reg);
204 * i40e_config_vsi_tx_queue
205 * @vf: pointer to the vf info
206 * @vsi_idx: index of VSI in PF struct
207 * @vsi_queue_id: vsi relative queue index
208 * @info: config. info
212 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
214 struct i40e_virtchnl_txq_info *info)
216 struct i40e_pf *pf = vf->pf;
217 struct i40e_hw *hw = &pf->hw;
218 struct i40e_hmc_obj_txq tx_ctx;
223 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
225 /* clear the context structure first */
226 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
228 /* only set the required fields */
229 tx_ctx.base = info->dma_ring_addr / 128;
230 tx_ctx.qlen = info->ring_len;
231 tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]);
232 tx_ctx.rdylist_act = 0;
234 /* clear the context in the HMC */
235 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
237 dev_err(&pf->pdev->dev,
238 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
244 /* set the context in the HMC */
245 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
247 dev_err(&pf->pdev->dev,
248 "Failed to set VF LAN Tx queue context %d error: %d\n",
254 /* associate this queue with the PCI VF function */
255 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
256 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
257 & I40E_QTX_CTL_PF_INDX_MASK);
258 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
259 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
260 & I40E_QTX_CTL_VFVM_INDX_MASK);
261 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
269 * i40e_config_vsi_rx_queue
270 * @vf: pointer to the vf info
271 * @vsi_idx: index of VSI in PF struct
272 * @vsi_queue_id: vsi relative queue index
273 * @info: config. info
277 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
279 struct i40e_virtchnl_rxq_info *info)
281 struct i40e_pf *pf = vf->pf;
282 struct i40e_hw *hw = &pf->hw;
283 struct i40e_hmc_obj_rxq rx_ctx;
287 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
289 /* clear the context structure first */
290 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
292 /* only set the required fields */
293 rx_ctx.base = info->dma_ring_addr / 128;
294 rx_ctx.qlen = info->ring_len;
296 if (info->splithdr_enabled) {
297 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
299 I40E_RX_SPLIT_TCP_UDP |
301 /* header length validation */
302 if (info->hdr_size > ((2 * 1024) - 64)) {
306 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
308 /* set splitalways mode 10b */
312 /* databuffer length validation */
313 if (info->databuffer_size > ((16 * 1024) - 128)) {
317 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
319 /* max pkt. length validation */
320 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
324 rx_ctx.rxmax = info->max_pkt_size;
326 /* enable 32bytes desc always */
330 rx_ctx.tphrdesc_ena = 1;
331 rx_ctx.tphwdesc_ena = 1;
332 rx_ctx.tphdata_ena = 1;
333 rx_ctx.tphhead_ena = 1;
334 rx_ctx.lrxqthresh = 2;
337 /* clear the context in the HMC */
338 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
340 dev_err(&pf->pdev->dev,
341 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
347 /* set the context in the HMC */
348 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
350 dev_err(&pf->pdev->dev,
351 "Failed to set VF LAN Rx queue context %d error: %d\n",
363 * @vf: pointer to the vf info
364 * @type: type of VSI to allocate
366 * alloc vf vsi context & resources
368 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
370 struct i40e_mac_filter *f = NULL;
371 struct i40e_pf *pf = vf->pf;
372 struct i40e_vsi *vsi;
375 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
378 dev_err(&pf->pdev->dev,
379 "add vsi failed for vf %d, aq_err %d\n",
380 vf->vf_id, pf->hw.aq.asq_last_status);
382 goto error_alloc_vsi_res;
384 if (type == I40E_VSI_SRIOV) {
385 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
386 vf->lan_vsi_index = vsi->idx;
387 vf->lan_vsi_id = vsi->id;
388 dev_info(&pf->pdev->dev,
389 "VF %d assigned LAN VSI index %d, VSI id %d\n",
390 vf->vf_id, vsi->idx, vsi->id);
391 /* If the port VLAN has been configured and then the
392 * VF driver was removed then the VSI port VLAN
393 * configuration was destroyed. Check if there is
394 * a port VLAN and restore the VSI configuration if
397 if (vf->port_vlan_id)
398 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
399 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
400 vf->port_vlan_id, true, false);
402 dev_info(&pf->pdev->dev,
403 "Could not allocate VF MAC addr\n");
404 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
407 dev_info(&pf->pdev->dev,
408 "Could not allocate VF broadcast filter\n");
412 dev_err(&pf->pdev->dev, "Unable to add ucast filter\n");
414 goto error_alloc_vsi_res;
417 /* program mac filter */
418 ret = i40e_sync_vsi_filters(vsi);
420 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
421 goto error_alloc_vsi_res;
429 * i40e_enable_vf_mappings
430 * @vf: pointer to the vf info
434 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
436 struct i40e_pf *pf = vf->pf;
437 struct i40e_hw *hw = &pf->hw;
438 u32 reg, total_queue_pairs = 0;
441 /* Tell the hardware we're using noncontiguous mapping. HW requires
442 * that VF queues be mapped using this method, even when they are
443 * contiguous in real life
445 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
446 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
448 /* enable VF vplan_qtable mappings */
449 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
450 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
452 /* map PF queues to VF queues */
453 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
454 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
455 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
456 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
460 /* map PF queues to VSI */
461 for (j = 0; j < 7; j++) {
462 if (j * 2 >= pf->vsi[vf->lan_vsi_index]->num_queue_pairs) {
463 reg = 0x07FF07FF; /* unused */
465 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
468 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
472 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
479 * i40e_disable_vf_mappings
480 * @vf: pointer to the vf info
482 * disable vf mappings
484 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
486 struct i40e_pf *pf = vf->pf;
487 struct i40e_hw *hw = &pf->hw;
490 /* disable qp mappings */
491 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
492 for (i = 0; i < I40E_MAX_VSI_QP; i++)
493 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
494 I40E_QUEUE_END_OF_LIST);
500 * @vf: pointer to the vf info
504 static void i40e_free_vf_res(struct i40e_vf *vf)
506 struct i40e_pf *pf = vf->pf;
507 struct i40e_hw *hw = &pf->hw;
511 /* free vsi & disconnect it from the parent uplink */
512 if (vf->lan_vsi_index) {
513 i40e_vsi_release(pf->vsi[vf->lan_vsi_index]);
514 vf->lan_vsi_index = 0;
517 msix_vf = pf->hw.func_caps.num_msix_vectors_vf + 1;
518 /* disable interrupts so the VF starts in a known state */
519 for (i = 0; i < msix_vf; i++) {
520 /* format is same for both registers */
522 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
524 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
527 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
531 /* clear the irq settings */
532 for (i = 0; i < msix_vf; i++) {
533 /* format is same for both registers */
535 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
537 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
540 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
541 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
542 wr32(hw, reg_idx, reg);
545 /* reset some of the state varibles keeping
546 * track of the resources
548 vf->num_queue_pairs = 0;
554 * @vf: pointer to the vf info
556 * allocate vf resources
558 static int i40e_alloc_vf_res(struct i40e_vf *vf)
560 struct i40e_pf *pf = vf->pf;
561 int total_queue_pairs = 0;
564 /* allocate hw vsi context & associated resources */
565 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
568 total_queue_pairs += pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
569 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
571 /* store the total qps number for the runtime
574 vf->num_queue_pairs = total_queue_pairs;
576 /* vf is now completely initialized */
577 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
581 i40e_free_vf_res(vf);
586 #define VF_DEVICE_STATUS 0xAA
587 #define VF_TRANS_PENDING_MASK 0x20
589 * i40e_quiesce_vf_pci
590 * @vf: pointer to the vf structure
592 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
593 * if the transactions never clear.
595 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
597 struct i40e_pf *pf = vf->pf;
598 struct i40e_hw *hw = &pf->hw;
602 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
604 wr32(hw, I40E_PF_PCI_CIAA,
605 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
606 for (i = 0; i < 100; i++) {
607 reg = rd32(hw, I40E_PF_PCI_CIAD);
608 if ((reg & VF_TRANS_PENDING_MASK) == 0)
617 * @vf: pointer to the vf structure
618 * @flr: VFLR was issued or not
622 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
624 struct i40e_pf *pf = vf->pf;
625 struct i40e_hw *hw = &pf->hw;
631 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
633 /* In the case of a VFLR, the HW has already reset the VF and we
634 * just need to clean up, so don't hit the VFRTRIG register.
637 /* reset vf using VPGEN_VFRTRIG reg */
638 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
639 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
640 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
644 if (i40e_quiesce_vf_pci(vf))
645 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
648 /* poll VPGEN_VFRSTAT reg to make sure
649 * that reset is complete
651 for (i = 0; i < 100; i++) {
652 /* vf reset requires driver to first reset the
653 * vf & than poll the status register to make sure
654 * that the requested op was completed
658 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
659 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
666 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
668 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
669 /* clear the reset bit in the VPGEN_VFRTRIG reg */
670 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
671 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
672 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
674 /* On initial reset, we won't have any queues */
675 if (vf->lan_vsi_index == 0)
678 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_index], false);
680 /* reallocate vf resources to reset the VSI state */
681 i40e_free_vf_res(vf);
683 i40e_alloc_vf_res(vf);
684 i40e_enable_vf_mappings(vf);
686 /* tell the VF the reset is done */
687 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
692 * i40e_vfs_are_assigned
693 * @pf: pointer to the pf structure
695 * Determine if any VFs are assigned to VMs
697 static bool i40e_vfs_are_assigned(struct i40e_pf *pf)
699 struct pci_dev *pdev = pf->pdev;
700 struct pci_dev *vfdev;
702 /* loop through all the VFs to see if we own any that are assigned */
703 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, I40E_VF_DEVICE_ID , NULL);
705 /* if we don't own it we don't care */
706 if (vfdev->is_virtfn && pci_physfn(vfdev) == pdev) {
707 /* if it is assigned we cannot release it */
708 if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
712 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL,
719 #ifdef CONFIG_PCI_IOV
722 * i40e_enable_pf_switch_lb
723 * @pf: pointer to the pf structure
725 * enable switch loop back or die - no point in a return value
727 static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
729 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
730 struct i40e_vsi_context ctxt;
733 ctxt.seid = pf->main_vsi_seid;
734 ctxt.pf_num = pf->hw.pf_id;
736 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
738 dev_info(&pf->pdev->dev,
739 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
740 __func__, aq_ret, pf->hw.aq.asq_last_status);
743 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
744 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
745 ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
747 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
749 dev_info(&pf->pdev->dev,
750 "%s: update vsi switch failed, aq_err=%d\n",
751 __func__, vsi->back->hw.aq.asq_last_status);
757 * i40e_disable_pf_switch_lb
758 * @pf: pointer to the pf structure
760 * disable switch loop back or die - no point in a return value
762 static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
764 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
765 struct i40e_vsi_context ctxt;
768 ctxt.seid = pf->main_vsi_seid;
769 ctxt.pf_num = pf->hw.pf_id;
771 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
773 dev_info(&pf->pdev->dev,
774 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
775 __func__, aq_ret, pf->hw.aq.asq_last_status);
778 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
779 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
780 ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
782 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
784 dev_info(&pf->pdev->dev,
785 "%s: update vsi switch failed, aq_err=%d\n",
786 __func__, vsi->back->hw.aq.asq_last_status);
792 * @pf: pointer to the pf structure
796 void i40e_free_vfs(struct i40e_pf *pf)
798 struct i40e_hw *hw = &pf->hw;
799 u32 reg_idx, bit_idx;
805 /* Disable interrupt 0 so we don't try to handle the VFLR. */
806 i40e_irq_dynamic_disable_icr0(pf);
808 mdelay(10); /* let any messages in transit get finished up */
809 /* free up vf resources */
810 tmp = pf->num_alloc_vfs;
811 pf->num_alloc_vfs = 0;
812 for (i = 0; i < tmp; i++) {
813 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
814 i40e_free_vf_res(&pf->vf[i]);
815 /* disable qp mappings */
816 i40e_disable_vf_mappings(&pf->vf[i]);
822 if (!i40e_vfs_are_assigned(pf)) {
823 pci_disable_sriov(pf->pdev);
824 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
825 * work correctly when SR-IOV gets re-enabled.
827 for (vf_id = 0; vf_id < tmp; vf_id++) {
828 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
829 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
830 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
832 i40e_disable_pf_switch_lb(pf);
834 dev_warn(&pf->pdev->dev,
835 "unable to disable SR-IOV because VFs are assigned.\n");
838 /* Re-enable interrupt 0. */
839 i40e_irq_dynamic_enable_icr0(pf);
842 #ifdef CONFIG_PCI_IOV
845 * @pf: pointer to the pf structure
846 * @num_alloc_vfs: number of vfs to allocate
848 * allocate vf resources
850 static int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
855 /* Disable interrupt 0 so we don't try to handle the VFLR. */
856 i40e_irq_dynamic_disable_icr0(pf);
858 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
860 dev_err(&pf->pdev->dev,
861 "pci_enable_sriov failed with error %d!\n", ret);
862 pf->num_alloc_vfs = 0;
866 /* allocate memory */
867 vfs = kzalloc(num_alloc_vfs * sizeof(struct i40e_vf), GFP_KERNEL);
873 /* apply default profile */
874 for (i = 0; i < num_alloc_vfs; i++) {
876 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
879 /* assign default capabilities */
880 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
881 /* vf resources get allocated during reset */
882 i40e_reset_vf(&vfs[i], false);
884 /* enable vf vplan_qtable mappings */
885 i40e_enable_vf_mappings(&vfs[i]);
888 pf->num_alloc_vfs = num_alloc_vfs;
890 i40e_enable_pf_switch_lb(pf);
895 /* Re-enable interrupt 0. */
896 i40e_irq_dynamic_enable_icr0(pf);
902 * i40e_pci_sriov_enable
903 * @pdev: pointer to a pci_dev structure
904 * @num_vfs: number of vfs to allocate
906 * Enable or change the number of VFs
908 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
910 #ifdef CONFIG_PCI_IOV
911 struct i40e_pf *pf = pci_get_drvdata(pdev);
912 int pre_existing_vfs = pci_num_vf(pdev);
915 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
916 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
918 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
921 if (num_vfs > pf->num_req_vfs) {
926 err = i40e_alloc_vfs(pf, num_vfs);
928 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
942 * i40e_pci_sriov_configure
943 * @pdev: pointer to a pci_dev structure
944 * @num_vfs: number of vfs to allocate
946 * Enable or change the number of VFs. Called when the user updates the number
949 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
951 struct i40e_pf *pf = pci_get_drvdata(pdev);
954 return i40e_pci_sriov_enable(pdev, num_vfs);
960 /***********************virtual channel routines******************/
963 * i40e_vc_send_msg_to_vf
964 * @vf: pointer to the vf info
965 * @v_opcode: virtual channel opcode
966 * @v_retval: virtual channel return value
967 * @msg: pointer to the msg buffer
968 * @msglen: msg length
972 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
973 u32 v_retval, u8 *msg, u16 msglen)
975 struct i40e_pf *pf = vf->pf;
976 struct i40e_hw *hw = &pf->hw;
977 int true_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
980 /* single place to detect unsuccessful return values */
982 vf->num_invalid_msgs++;
983 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
985 if (vf->num_invalid_msgs >
986 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
987 dev_err(&pf->pdev->dev,
988 "Number of invalid messages exceeded for VF %d\n",
990 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
991 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
994 vf->num_valid_msgs++;
997 aq_ret = i40e_aq_send_msg_to_vf(hw, true_vf_id, v_opcode, v_retval,
1000 dev_err(&pf->pdev->dev,
1001 "Unable to send the message to VF %d aq_err %d\n",
1002 vf->vf_id, pf->hw.aq.asq_last_status);
1010 * i40e_vc_send_resp_to_vf
1011 * @vf: pointer to the vf info
1012 * @opcode: operation code
1013 * @retval: return value
1015 * send resp msg to vf
1017 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1018 enum i40e_virtchnl_ops opcode,
1021 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1025 * i40e_vc_get_version_msg
1026 * @vf: pointer to the vf info
1028 * called from the vf to request the API version used by the PF
1030 static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1032 struct i40e_virtchnl_version_info info = {
1033 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1036 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1037 I40E_SUCCESS, (u8 *)&info,
1039 i40e_virtchnl_version_info));
1043 * i40e_vc_get_vf_resources_msg
1044 * @vf: pointer to the vf info
1045 * @msg: pointer to the msg buffer
1046 * @msglen: msg length
1048 * called from the vf to request its resources
1050 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1052 struct i40e_virtchnl_vf_resource *vfres = NULL;
1053 struct i40e_pf *pf = vf->pf;
1054 i40e_status aq_ret = 0;
1055 struct i40e_vsi *vsi;
1060 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1061 aq_ret = I40E_ERR_PARAM;
1065 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1066 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1068 vfres = kzalloc(len, GFP_KERNEL);
1070 aq_ret = I40E_ERR_NO_MEMORY;
1075 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1076 vsi = pf->vsi[vf->lan_vsi_index];
1077 if (!vsi->info.pvid)
1078 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1080 vfres->num_vsis = num_vsis;
1081 vfres->num_queue_pairs = vf->num_queue_pairs;
1082 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1083 if (vf->lan_vsi_index) {
1084 vfres->vsi_res[i].vsi_id = vf->lan_vsi_index;
1085 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1086 vfres->vsi_res[i].num_queue_pairs =
1087 pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
1088 memcpy(vfres->vsi_res[i].default_mac_addr,
1089 vf->default_lan_addr.addr, ETH_ALEN);
1092 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1095 /* send the response back to the vf */
1096 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1097 aq_ret, (u8 *)vfres, len);
1104 * i40e_vc_reset_vf_msg
1105 * @vf: pointer to the vf info
1106 * @msg: pointer to the msg buffer
1107 * @msglen: msg length
1109 * called from the vf to reset itself,
1110 * unlike other virtchnl messages, pf driver
1111 * doesn't send the response back to the vf
1113 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1115 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1116 i40e_reset_vf(vf, false);
1120 * i40e_vc_config_promiscuous_mode_msg
1121 * @vf: pointer to the vf info
1122 * @msg: pointer to the msg buffer
1123 * @msglen: msg length
1125 * called from the vf to configure the promiscuous mode of
1128 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1129 u8 *msg, u16 msglen)
1131 struct i40e_virtchnl_promisc_info *info =
1132 (struct i40e_virtchnl_promisc_info *)msg;
1133 struct i40e_pf *pf = vf->pf;
1134 struct i40e_hw *hw = &pf->hw;
1135 bool allmulti = false;
1136 bool promisc = false;
1139 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1140 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1141 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1142 (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) {
1143 aq_ret = I40E_ERR_PARAM;
1147 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1149 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, info->vsi_id,
1154 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1156 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, info->vsi_id,
1160 /* send the response to the vf */
1161 return i40e_vc_send_resp_to_vf(vf,
1162 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1167 * i40e_vc_config_queues_msg
1168 * @vf: pointer to the vf info
1169 * @msg: pointer to the msg buffer
1170 * @msglen: msg length
1172 * called from the vf to configure the rx/tx
1175 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1177 struct i40e_virtchnl_vsi_queue_config_info *qci =
1178 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1179 struct i40e_virtchnl_queue_pair_info *qpi;
1180 u16 vsi_id, vsi_queue_id;
1181 i40e_status aq_ret = 0;
1184 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1185 aq_ret = I40E_ERR_PARAM;
1189 vsi_id = qci->vsi_id;
1190 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1191 aq_ret = I40E_ERR_PARAM;
1194 for (i = 0; i < qci->num_queue_pairs; i++) {
1195 qpi = &qci->qpair[i];
1196 vsi_queue_id = qpi->txq.queue_id;
1197 if ((qpi->txq.vsi_id != vsi_id) ||
1198 (qpi->rxq.vsi_id != vsi_id) ||
1199 (qpi->rxq.queue_id != vsi_queue_id) ||
1200 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1201 aq_ret = I40E_ERR_PARAM;
1205 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1207 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1209 aq_ret = I40E_ERR_PARAM;
1215 /* send the response to the vf */
1216 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1221 * i40e_vc_config_irq_map_msg
1222 * @vf: pointer to the vf info
1223 * @msg: pointer to the msg buffer
1224 * @msglen: msg length
1226 * called from the vf to configure the irq to
1229 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1231 struct i40e_virtchnl_irq_map_info *irqmap_info =
1232 (struct i40e_virtchnl_irq_map_info *)msg;
1233 struct i40e_virtchnl_vector_map *map;
1234 u16 vsi_id, vsi_queue_id, vector_id;
1235 i40e_status aq_ret = 0;
1236 unsigned long tempmap;
1239 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1240 aq_ret = I40E_ERR_PARAM;
1244 for (i = 0; i < irqmap_info->num_vectors; i++) {
1245 map = &irqmap_info->vecmap[i];
1247 vector_id = map->vector_id;
1248 vsi_id = map->vsi_id;
1249 /* validate msg params */
1250 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1251 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1252 aq_ret = I40E_ERR_PARAM;
1256 /* lookout for the invalid queue index */
1257 tempmap = map->rxq_map;
1258 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1259 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1261 aq_ret = I40E_ERR_PARAM;
1266 tempmap = map->txq_map;
1267 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1268 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1270 aq_ret = I40E_ERR_PARAM;
1275 i40e_config_irq_link_list(vf, vsi_id, map);
1278 /* send the response to the vf */
1279 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1284 * i40e_vc_enable_queues_msg
1285 * @vf: pointer to the vf info
1286 * @msg: pointer to the msg buffer
1287 * @msglen: msg length
1289 * called from the vf to enable all or specific queue(s)
1291 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1293 struct i40e_virtchnl_queue_select *vqs =
1294 (struct i40e_virtchnl_queue_select *)msg;
1295 struct i40e_pf *pf = vf->pf;
1296 u16 vsi_id = vqs->vsi_id;
1297 i40e_status aq_ret = 0;
1299 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1300 aq_ret = I40E_ERR_PARAM;
1304 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1305 aq_ret = I40E_ERR_PARAM;
1309 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1310 aq_ret = I40E_ERR_PARAM;
1313 if (i40e_vsi_control_rings(pf->vsi[vsi_id], true))
1314 aq_ret = I40E_ERR_TIMEOUT;
1316 /* send the response to the vf */
1317 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1322 * i40e_vc_disable_queues_msg
1323 * @vf: pointer to the vf info
1324 * @msg: pointer to the msg buffer
1325 * @msglen: msg length
1327 * called from the vf to disable all or specific
1330 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1332 struct i40e_virtchnl_queue_select *vqs =
1333 (struct i40e_virtchnl_queue_select *)msg;
1334 struct i40e_pf *pf = vf->pf;
1335 u16 vsi_id = vqs->vsi_id;
1336 i40e_status aq_ret = 0;
1338 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1339 aq_ret = I40E_ERR_PARAM;
1343 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1344 aq_ret = I40E_ERR_PARAM;
1348 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1349 aq_ret = I40E_ERR_PARAM;
1352 if (i40e_vsi_control_rings(pf->vsi[vsi_id], false))
1353 aq_ret = I40E_ERR_TIMEOUT;
1356 /* send the response to the vf */
1357 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1362 * i40e_vc_get_stats_msg
1363 * @vf: pointer to the vf info
1364 * @msg: pointer to the msg buffer
1365 * @msglen: msg length
1367 * called from the vf to get vsi stats
1369 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1371 struct i40e_virtchnl_queue_select *vqs =
1372 (struct i40e_virtchnl_queue_select *)msg;
1373 struct i40e_pf *pf = vf->pf;
1374 struct i40e_eth_stats stats;
1375 i40e_status aq_ret = 0;
1376 struct i40e_vsi *vsi;
1378 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1380 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1381 aq_ret = I40E_ERR_PARAM;
1385 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1386 aq_ret = I40E_ERR_PARAM;
1390 vsi = pf->vsi[vqs->vsi_id];
1392 aq_ret = I40E_ERR_PARAM;
1395 i40e_update_eth_stats(vsi);
1396 stats = vsi->eth_stats;
1399 /* send the response back to the vf */
1400 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1401 (u8 *)&stats, sizeof(stats));
1405 * i40e_check_vf_permission
1406 * @vf: pointer to the vf info
1407 * @macaddr: pointer to the MAC Address being checked
1409 * Check if the VF has permission to add or delete unicast MAC address
1410 * filters and return error code -EPERM if not. Then check if the
1411 * address filter requested is broadcast or zero and if so return
1412 * an invalid MAC address error code.
1414 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1416 struct i40e_pf *pf = vf->pf;
1419 if (is_broadcast_ether_addr(macaddr) ||
1420 is_zero_ether_addr(macaddr)) {
1421 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1422 ret = I40E_ERR_INVALID_MAC_ADDR;
1423 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1424 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1425 /* If the host VMM administrator has set the VF MAC address
1426 * administratively via the ndo_set_vf_mac command then deny
1427 * permission to the VF to add or delete unicast MAC addresses.
1428 * The VF may request to set the MAC address filter already
1429 * assigned to it so do not return an error in that case.
1431 dev_err(&pf->pdev->dev,
1432 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1439 * i40e_vc_add_mac_addr_msg
1440 * @vf: pointer to the vf info
1441 * @msg: pointer to the msg buffer
1442 * @msglen: msg length
1444 * add guest mac address filter
1446 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1448 struct i40e_virtchnl_ether_addr_list *al =
1449 (struct i40e_virtchnl_ether_addr_list *)msg;
1450 struct i40e_pf *pf = vf->pf;
1451 struct i40e_vsi *vsi = NULL;
1452 u16 vsi_id = al->vsi_id;
1453 i40e_status ret = 0;
1456 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1457 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1458 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1459 ret = I40E_ERR_PARAM;
1463 for (i = 0; i < al->num_elements; i++) {
1464 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1468 vsi = pf->vsi[vsi_id];
1470 /* add new addresses to the list */
1471 for (i = 0; i < al->num_elements; i++) {
1472 struct i40e_mac_filter *f;
1474 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1476 if (i40e_is_vsi_in_vlan(vsi))
1477 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1480 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1485 dev_err(&pf->pdev->dev,
1486 "Unable to add VF MAC filter\n");
1487 ret = I40E_ERR_PARAM;
1492 /* program the updated filter list */
1493 if (i40e_sync_vsi_filters(vsi))
1494 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1497 /* send the response to the vf */
1498 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1503 * i40e_vc_del_mac_addr_msg
1504 * @vf: pointer to the vf info
1505 * @msg: pointer to the msg buffer
1506 * @msglen: msg length
1508 * remove guest mac address filter
1510 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1512 struct i40e_virtchnl_ether_addr_list *al =
1513 (struct i40e_virtchnl_ether_addr_list *)msg;
1514 struct i40e_pf *pf = vf->pf;
1515 struct i40e_vsi *vsi = NULL;
1516 u16 vsi_id = al->vsi_id;
1517 i40e_status ret = 0;
1520 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1521 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1522 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1523 ret = I40E_ERR_PARAM;
1527 for (i = 0; i < al->num_elements; i++) {
1528 if (is_broadcast_ether_addr(al->list[i].addr) ||
1529 is_zero_ether_addr(al->list[i].addr)) {
1530 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1532 ret = I40E_ERR_INVALID_MAC_ADDR;
1536 vsi = pf->vsi[vsi_id];
1538 /* delete addresses from the list */
1539 for (i = 0; i < al->num_elements; i++)
1540 i40e_del_filter(vsi, al->list[i].addr,
1541 I40E_VLAN_ANY, true, false);
1543 /* program the updated filter list */
1544 if (i40e_sync_vsi_filters(vsi))
1545 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1548 /* send the response to the vf */
1549 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1554 * i40e_vc_add_vlan_msg
1555 * @vf: pointer to the vf info
1556 * @msg: pointer to the msg buffer
1557 * @msglen: msg length
1559 * program guest vlan id
1561 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1563 struct i40e_virtchnl_vlan_filter_list *vfl =
1564 (struct i40e_virtchnl_vlan_filter_list *)msg;
1565 struct i40e_pf *pf = vf->pf;
1566 struct i40e_vsi *vsi = NULL;
1567 u16 vsi_id = vfl->vsi_id;
1568 i40e_status aq_ret = 0;
1571 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1572 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1573 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1574 aq_ret = I40E_ERR_PARAM;
1578 for (i = 0; i < vfl->num_elements; i++) {
1579 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1580 aq_ret = I40E_ERR_PARAM;
1581 dev_err(&pf->pdev->dev,
1582 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1586 vsi = pf->vsi[vsi_id];
1587 if (vsi->info.pvid) {
1588 aq_ret = I40E_ERR_PARAM;
1592 i40e_vlan_stripping_enable(vsi);
1593 for (i = 0; i < vfl->num_elements; i++) {
1594 /* add new VLAN filter */
1595 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1597 dev_err(&pf->pdev->dev,
1598 "Unable to add VF vlan filter %d, error %d\n",
1599 vfl->vlan_id[i], ret);
1603 /* send the response to the vf */
1604 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1608 * i40e_vc_remove_vlan_msg
1609 * @vf: pointer to the vf info
1610 * @msg: pointer to the msg buffer
1611 * @msglen: msg length
1613 * remove programmed guest vlan id
1615 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1617 struct i40e_virtchnl_vlan_filter_list *vfl =
1618 (struct i40e_virtchnl_vlan_filter_list *)msg;
1619 struct i40e_pf *pf = vf->pf;
1620 struct i40e_vsi *vsi = NULL;
1621 u16 vsi_id = vfl->vsi_id;
1622 i40e_status aq_ret = 0;
1625 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1626 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1627 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1628 aq_ret = I40E_ERR_PARAM;
1632 for (i = 0; i < vfl->num_elements; i++) {
1633 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1634 aq_ret = I40E_ERR_PARAM;
1639 vsi = pf->vsi[vsi_id];
1640 if (vsi->info.pvid) {
1641 aq_ret = I40E_ERR_PARAM;
1645 for (i = 0; i < vfl->num_elements; i++) {
1646 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1648 dev_err(&pf->pdev->dev,
1649 "Unable to delete VF vlan filter %d, error %d\n",
1650 vfl->vlan_id[i], ret);
1654 /* send the response to the vf */
1655 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1659 * i40e_vc_validate_vf_msg
1660 * @vf: pointer to the vf info
1661 * @msg: pointer to the msg buffer
1662 * @msglen: msg length
1663 * @msghndl: msg handle
1667 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1668 u32 v_retval, u8 *msg, u16 msglen)
1670 bool err_msg_format = false;
1673 /* Check if VF is disabled. */
1674 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1675 return I40E_ERR_PARAM;
1677 /* Validate message length. */
1679 case I40E_VIRTCHNL_OP_VERSION:
1680 valid_len = sizeof(struct i40e_virtchnl_version_info);
1682 case I40E_VIRTCHNL_OP_RESET_VF:
1683 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1686 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1687 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1689 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1690 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1692 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1693 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1694 if (msglen >= valid_len) {
1695 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1696 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1697 valid_len += (vqc->num_queue_pairs *
1699 i40e_virtchnl_queue_pair_info));
1700 if (vqc->num_queue_pairs == 0)
1701 err_msg_format = true;
1704 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1705 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1706 if (msglen >= valid_len) {
1707 struct i40e_virtchnl_irq_map_info *vimi =
1708 (struct i40e_virtchnl_irq_map_info *)msg;
1709 valid_len += (vimi->num_vectors *
1710 sizeof(struct i40e_virtchnl_vector_map));
1711 if (vimi->num_vectors == 0)
1712 err_msg_format = true;
1715 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1716 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1717 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1719 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1720 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1721 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1722 if (msglen >= valid_len) {
1723 struct i40e_virtchnl_ether_addr_list *veal =
1724 (struct i40e_virtchnl_ether_addr_list *)msg;
1725 valid_len += veal->num_elements *
1726 sizeof(struct i40e_virtchnl_ether_addr);
1727 if (veal->num_elements == 0)
1728 err_msg_format = true;
1731 case I40E_VIRTCHNL_OP_ADD_VLAN:
1732 case I40E_VIRTCHNL_OP_DEL_VLAN:
1733 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1734 if (msglen >= valid_len) {
1735 struct i40e_virtchnl_vlan_filter_list *vfl =
1736 (struct i40e_virtchnl_vlan_filter_list *)msg;
1737 valid_len += vfl->num_elements * sizeof(u16);
1738 if (vfl->num_elements == 0)
1739 err_msg_format = true;
1742 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1743 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1745 case I40E_VIRTCHNL_OP_GET_STATS:
1746 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1748 /* These are always errors coming from the VF. */
1749 case I40E_VIRTCHNL_OP_EVENT:
1750 case I40E_VIRTCHNL_OP_UNKNOWN:
1755 /* few more checks */
1756 if ((valid_len != msglen) || (err_msg_format)) {
1757 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1765 * i40e_vc_process_vf_msg
1766 * @pf: pointer to the pf structure
1767 * @vf_id: source vf id
1768 * @msg: pointer to the msg buffer
1769 * @msglen: msg length
1770 * @msghndl: msg handle
1772 * called from the common aeq/arq handler to
1773 * process request from vf
1775 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1776 u32 v_retval, u8 *msg, u16 msglen)
1778 struct i40e_hw *hw = &pf->hw;
1779 int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1783 pf->vf_aq_requests++;
1784 if (local_vf_id >= pf->num_alloc_vfs)
1786 vf = &(pf->vf[local_vf_id]);
1787 /* perform basic checks on the msg */
1788 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1791 dev_err(&pf->pdev->dev, "Invalid message from vf %d, opcode %d, len %d\n",
1792 local_vf_id, v_opcode, msglen);
1797 case I40E_VIRTCHNL_OP_VERSION:
1798 ret = i40e_vc_get_version_msg(vf);
1800 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1801 ret = i40e_vc_get_vf_resources_msg(vf);
1803 case I40E_VIRTCHNL_OP_RESET_VF:
1804 i40e_vc_reset_vf_msg(vf);
1807 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1808 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1810 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1811 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1813 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1814 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1816 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1817 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1819 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1820 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1822 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1823 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1825 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1826 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1828 case I40E_VIRTCHNL_OP_ADD_VLAN:
1829 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1831 case I40E_VIRTCHNL_OP_DEL_VLAN:
1832 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1834 case I40E_VIRTCHNL_OP_GET_STATS:
1835 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1837 case I40E_VIRTCHNL_OP_UNKNOWN:
1839 dev_err(&pf->pdev->dev, "Unsupported opcode %d from vf %d\n",
1840 v_opcode, local_vf_id);
1841 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1842 I40E_ERR_NOT_IMPLEMENTED);
1850 * i40e_vc_process_vflr_event
1851 * @pf: pointer to the pf structure
1853 * called from the vlfr irq handler to
1854 * free up vf resources and state variables
1856 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1858 u32 reg, reg_idx, bit_idx, vf_id;
1859 struct i40e_hw *hw = &pf->hw;
1862 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1865 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1866 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1867 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1868 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1869 /* read GLGEN_VFLRSTAT register to find out the flr vfs */
1870 vf = &pf->vf[vf_id];
1871 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1872 if (reg & (1 << bit_idx)) {
1873 /* clear the bit in GLGEN_VFLRSTAT */
1874 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1876 i40e_reset_vf(vf, true);
1880 /* re-enable vflr interrupt cause */
1881 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1882 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1883 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1890 * i40e_vc_vf_broadcast
1891 * @pf: pointer to the pf structure
1892 * @opcode: operation code
1893 * @retval: return value
1894 * @msg: pointer to the msg buffer
1895 * @msglen: msg length
1897 * send a message to all VFs on a given PF
1899 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
1900 enum i40e_virtchnl_ops v_opcode,
1901 i40e_status v_retval, u8 *msg,
1904 struct i40e_hw *hw = &pf->hw;
1905 struct i40e_vf *vf = pf->vf;
1908 for (i = 0; i < pf->num_alloc_vfs; i++) {
1909 /* Ignore return value on purpose - a given VF may fail, but
1910 * we need to keep going and send to all of them
1912 i40e_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval,
1919 * i40e_vc_notify_link_state
1920 * @pf: pointer to the pf structure
1922 * send a link status message to all VFs on a given PF
1924 void i40e_vc_notify_link_state(struct i40e_pf *pf)
1926 struct i40e_virtchnl_pf_event pfe;
1928 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
1929 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
1930 pfe.event_data.link_event.link_status =
1931 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
1932 pfe.event_data.link_event.link_speed = pf->hw.phy.link_info.link_speed;
1934 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
1935 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
1939 * i40e_vc_notify_reset
1940 * @pf: pointer to the pf structure
1942 * indicate a pending reset to all VFs on a given PF
1944 void i40e_vc_notify_reset(struct i40e_pf *pf)
1946 struct i40e_virtchnl_pf_event pfe;
1948 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1949 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1950 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
1951 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
1955 * i40e_vc_notify_vf_reset
1956 * @vf: pointer to the vf structure
1958 * indicate a pending reset to the given VF
1960 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
1962 struct i40e_virtchnl_pf_event pfe;
1964 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1965 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1966 i40e_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
1967 I40E_SUCCESS, (u8 *)&pfe,
1968 sizeof(struct i40e_virtchnl_pf_event), NULL);
1972 * i40e_ndo_set_vf_mac
1973 * @netdev: network interface device structure
1974 * @vf_id: vf identifier
1977 * program vf mac address
1979 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1981 struct i40e_netdev_priv *np = netdev_priv(netdev);
1982 struct i40e_vsi *vsi = np->vsi;
1983 struct i40e_pf *pf = vsi->back;
1984 struct i40e_mac_filter *f;
1988 /* validate the request */
1989 if (vf_id >= pf->num_alloc_vfs) {
1990 dev_err(&pf->pdev->dev,
1991 "Invalid VF Identifier %d\n", vf_id);
1996 vf = &(pf->vf[vf_id]);
1997 vsi = pf->vsi[vf->lan_vsi_index];
1998 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1999 dev_err(&pf->pdev->dev,
2000 "Uninitialized VF %d\n", vf_id);
2005 if (!is_valid_ether_addr(mac)) {
2006 dev_err(&pf->pdev->dev,
2007 "Invalid VF ethernet address\n");
2012 /* delete the temporary mac address */
2013 i40e_del_filter(vsi, vf->default_lan_addr.addr, 0, true, false);
2015 /* add the new mac address */
2016 f = i40e_add_filter(vsi, mac, 0, true, false);
2018 dev_err(&pf->pdev->dev,
2019 "Unable to add VF ucast filter\n");
2024 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2025 /* program mac filter */
2026 if (i40e_sync_vsi_filters(vsi)) {
2027 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2031 memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN);
2032 vf->pf_set_mac = true;
2033 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2041 * i40e_ndo_set_vf_port_vlan
2042 * @netdev: network interface device structure
2043 * @vf_id: vf identifier
2044 * @vlan_id: mac address
2045 * @qos: priority setting
2047 * program vf vlan id and/or qos
2049 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2050 int vf_id, u16 vlan_id, u8 qos)
2052 struct i40e_netdev_priv *np = netdev_priv(netdev);
2053 struct i40e_pf *pf = np->vsi->back;
2054 struct i40e_vsi *vsi;
2058 /* validate the request */
2059 if (vf_id >= pf->num_alloc_vfs) {
2060 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2065 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2066 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2071 vf = &(pf->vf[vf_id]);
2072 vsi = pf->vsi[vf->lan_vsi_index];
2073 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2074 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2079 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi))
2080 dev_err(&pf->pdev->dev,
2081 "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",
2084 if (vsi->info.pvid) {
2086 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2089 dev_info(&vsi->back->pdev->dev,
2090 "remove VLAN failed, ret=%d, aq_err=%d\n",
2091 ret, pf->hw.aq.asq_last_status);
2095 ret = i40e_vsi_add_pvid(vsi,
2096 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2098 i40e_vsi_remove_pvid(vsi);
2101 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2102 vlan_id, qos, vf_id);
2104 /* add new VLAN filter */
2105 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2107 dev_info(&vsi->back->pdev->dev,
2108 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2109 vsi->back->hw.aq.asq_last_status);
2115 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2118 /* The Port VLAN needs to be saved across resets the same as the
2119 * default LAN MAC address.
2121 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2129 * i40e_ndo_set_vf_bw
2130 * @netdev: network interface device structure
2131 * @vf_id: vf identifier
2134 * configure vf tx rate
2136 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int tx_rate)
2142 * i40e_ndo_get_vf_config
2143 * @netdev: network interface device structure
2144 * @vf_id: vf identifier
2145 * @ivi: vf configuration structure
2147 * return vf configuration
2149 int i40e_ndo_get_vf_config(struct net_device *netdev,
2150 int vf_id, struct ifla_vf_info *ivi)
2152 struct i40e_netdev_priv *np = netdev_priv(netdev);
2153 struct i40e_vsi *vsi = np->vsi;
2154 struct i40e_pf *pf = vsi->back;
2158 /* validate the request */
2159 if (vf_id >= pf->num_alloc_vfs) {
2160 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2165 vf = &(pf->vf[vf_id]);
2166 /* first vsi is always the LAN vsi */
2167 vsi = pf->vsi[vf->lan_vsi_index];
2168 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2169 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2176 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
2179 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2180 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2181 I40E_VLAN_PRIORITY_SHIFT;