1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018, Intel Corporation. */
10 * ice_validate_vf_id - helper to check if VF ID is valid
11 * @pf: pointer to the PF structure
12 * @vf_id: the ID of the VF to check
14 static int ice_validate_vf_id(struct ice_pf *pf, u16 vf_id)
16 /* vf_id range is only valid for 0-255, and should always be unsigned */
17 if (vf_id >= pf->num_alloc_vfs) {
18 dev_err(ice_pf_to_dev(pf), "Invalid VF ID: %u\n", vf_id);
25 * ice_check_vf_init - helper to check if VF init complete
26 * @pf: pointer to the PF structure
27 * @vf: the pointer to the VF to check
29 static int ice_check_vf_init(struct ice_pf *pf, struct ice_vf *vf)
31 if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) {
32 dev_err(ice_pf_to_dev(pf), "VF ID: %u in reset. Try again.\n",
40 * ice_err_to_virt_err - translate errors for VF return code
41 * @ice_err: error return code
43 static enum virtchnl_status_code ice_err_to_virt_err(enum ice_status ice_err)
47 return VIRTCHNL_STATUS_SUCCESS;
49 case ICE_ERR_INVAL_SIZE:
50 case ICE_ERR_DEVICE_NOT_SUPPORTED:
53 return VIRTCHNL_STATUS_ERR_PARAM;
54 case ICE_ERR_NO_MEMORY:
55 return VIRTCHNL_STATUS_ERR_NO_MEMORY;
56 case ICE_ERR_NOT_READY:
57 case ICE_ERR_RESET_FAILED:
58 case ICE_ERR_FW_API_VER:
59 case ICE_ERR_AQ_ERROR:
60 case ICE_ERR_AQ_TIMEOUT:
62 case ICE_ERR_AQ_NO_WORK:
63 case ICE_ERR_AQ_EMPTY:
64 return VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
66 return VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
71 * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF
72 * @pf: pointer to the PF structure
73 * @v_opcode: operation code
74 * @v_retval: return value
75 * @msg: pointer to the msg buffer
79 ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode,
80 enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
82 struct ice_hw *hw = &pf->hw;
85 ice_for_each_vf(pf, i) {
86 struct ice_vf *vf = &pf->vf[i];
88 /* Not all vfs are enabled so skip the ones that are not */
89 if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
90 !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
93 /* Ignore return value on purpose - a given VF may fail, but
94 * we need to keep going and send to all of them
96 ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg,
102 * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event
103 * @vf: pointer to the VF structure
104 * @pfe: pointer to the virtchnl_pf_event to set link speed/status for
105 * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_*
106 * @link_up: whether or not to set the link up/down
109 ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe,
110 int ice_link_speed, bool link_up)
112 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
113 pfe->event_data.link_event_adv.link_status = link_up;
115 pfe->event_data.link_event_adv.link_speed =
116 ice_conv_link_speed_to_virtchnl(true, ice_link_speed);
118 pfe->event_data.link_event.link_status = link_up;
119 /* Legacy method for virtchnl link speeds */
120 pfe->event_data.link_event.link_speed =
121 (enum virtchnl_link_speed)
122 ice_conv_link_speed_to_virtchnl(false, ice_link_speed);
127 * ice_vf_has_no_qs_ena - check if the VF has any Rx or Tx queues enabled
128 * @vf: the VF to check
130 * Returns true if the VF has no Rx and no Tx queues enabled and returns false
133 static bool ice_vf_has_no_qs_ena(struct ice_vf *vf)
135 return (!bitmap_weight(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF) &&
136 !bitmap_weight(vf->txq_ena, ICE_MAX_RSS_QS_PER_VF));
140 * ice_is_vf_link_up - check if the VF's link is up
141 * @vf: VF to check if link is up
143 static bool ice_is_vf_link_up(struct ice_vf *vf)
145 struct ice_pf *pf = vf->pf;
147 if (ice_check_vf_init(pf, vf))
150 if (ice_vf_has_no_qs_ena(vf))
152 else if (vf->link_forced)
155 return pf->hw.port_info->phy.link_info.link_info &
160 * ice_vc_notify_vf_link_state - Inform a VF of link status
161 * @vf: pointer to the VF structure
163 * send a link status message to a single VF
165 static void ice_vc_notify_vf_link_state(struct ice_vf *vf)
167 struct virtchnl_pf_event pfe = { 0 };
168 struct ice_hw *hw = &vf->pf->hw;
170 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
171 pfe.severity = PF_EVENT_SEVERITY_INFO;
173 if (ice_is_vf_link_up(vf))
174 ice_set_pfe_link(vf, &pfe,
175 hw->port_info->phy.link_info.link_speed, true);
177 ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false);
179 ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
180 VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe,
185 * ice_vf_invalidate_vsi - invalidate vsi_idx/vsi_num to remove VSI access
186 * @vf: VF to remove access to VSI for
188 static void ice_vf_invalidate_vsi(struct ice_vf *vf)
190 vf->lan_vsi_idx = ICE_NO_VSI;
191 vf->lan_vsi_num = ICE_NO_VSI;
195 * ice_vf_vsi_release - invalidate the VF's VSI after freeing it
196 * @vf: invalidate this VF's VSI after freeing it
198 static void ice_vf_vsi_release(struct ice_vf *vf)
200 ice_vsi_release(vf->pf->vsi[vf->lan_vsi_idx]);
201 ice_vf_invalidate_vsi(vf);
205 * ice_free_vf_res - Free a VF's resources
206 * @vf: pointer to the VF info
208 static void ice_free_vf_res(struct ice_vf *vf)
210 struct ice_pf *pf = vf->pf;
211 int i, last_vector_idx;
213 /* First, disable VF's configuration API to prevent OS from
214 * accessing the VF's VSI after it's freed or invalidated.
216 clear_bit(ICE_VF_STATE_INIT, vf->vf_states);
218 /* free VSI and disconnect it from the parent uplink */
219 if (vf->lan_vsi_idx != ICE_NO_VSI) {
220 ice_vf_vsi_release(vf);
224 last_vector_idx = vf->first_vector_idx + pf->num_msix_per_vf - 1;
226 /* clear VF MDD event information */
227 memset(&vf->mdd_tx_events, 0, sizeof(vf->mdd_tx_events));
228 memset(&vf->mdd_rx_events, 0, sizeof(vf->mdd_rx_events));
230 /* Disable interrupts so that VF starts in a known state */
231 for (i = vf->first_vector_idx; i <= last_vector_idx; i++) {
232 wr32(&pf->hw, GLINT_DYN_CTL(i), GLINT_DYN_CTL_CLEARPBA_M);
235 /* reset some of the state variables keeping track of the resources */
236 clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states);
237 clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states);
241 * ice_dis_vf_mappings
242 * @vf: pointer to the VF structure
244 static void ice_dis_vf_mappings(struct ice_vf *vf)
246 struct ice_pf *pf = vf->pf;
253 vsi = pf->vsi[vf->lan_vsi_idx];
255 dev = ice_pf_to_dev(pf);
256 wr32(hw, VPINT_ALLOC(vf->vf_id), 0);
257 wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), 0);
259 first = vf->first_vector_idx;
260 last = first + pf->num_msix_per_vf - 1;
261 for (v = first; v <= last; v++) {
264 reg = (((1 << GLINT_VECT2FUNC_IS_PF_S) &
265 GLINT_VECT2FUNC_IS_PF_M) |
266 ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) &
267 GLINT_VECT2FUNC_PF_NUM_M));
268 wr32(hw, GLINT_VECT2FUNC(v), reg);
271 if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG)
272 wr32(hw, VPLAN_TX_QBASE(vf->vf_id), 0);
274 dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n");
276 if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG)
277 wr32(hw, VPLAN_RX_QBASE(vf->vf_id), 0);
279 dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n");
283 * ice_sriov_free_msix_res - Reset/free any used MSIX resources
284 * @pf: pointer to the PF structure
286 * Since no MSIX entries are taken from the pf->irq_tracker then just clear
287 * the pf->sriov_base_vector.
289 * Returns 0 on success, and -EINVAL on error.
291 static int ice_sriov_free_msix_res(struct ice_pf *pf)
293 struct ice_res_tracker *res;
298 res = pf->irq_tracker;
302 /* give back irq_tracker resources used */
303 WARN_ON(pf->sriov_base_vector < res->num_entries);
305 pf->sriov_base_vector = 0;
311 * ice_set_vf_state_qs_dis - Set VF queues state to disabled
312 * @vf: pointer to the VF structure
314 void ice_set_vf_state_qs_dis(struct ice_vf *vf)
316 /* Clear Rx/Tx enabled queues flag */
317 bitmap_zero(vf->txq_ena, ICE_MAX_RSS_QS_PER_VF);
318 bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
319 clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
323 * ice_dis_vf_qs - Disable the VF queues
324 * @vf: pointer to the VF structure
326 static void ice_dis_vf_qs(struct ice_vf *vf)
328 struct ice_pf *pf = vf->pf;
331 vsi = pf->vsi[vf->lan_vsi_idx];
333 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, vf->vf_id);
334 ice_vsi_stop_all_rx_rings(vsi);
335 ice_set_vf_state_qs_dis(vf);
339 * ice_free_vfs - Free all VFs
340 * @pf: pointer to the PF structure
342 void ice_free_vfs(struct ice_pf *pf)
344 struct device *dev = ice_pf_to_dev(pf);
345 struct ice_hw *hw = &pf->hw;
351 while (test_and_set_bit(__ICE_VF_DIS, pf->state))
352 usleep_range(1000, 2000);
354 /* Disable IOV before freeing resources. This lets any VF drivers
355 * running in the host get themselves cleaned up before we yank
356 * the carpet out from underneath their feet.
358 if (!pci_vfs_assigned(pf->pdev))
359 pci_disable_sriov(pf->pdev);
361 dev_warn(dev, "VFs are assigned - not disabling SR-IOV\n");
363 /* Avoid wait time by stopping all VFs at the same time */
364 ice_for_each_vf(pf, i)
365 if (test_bit(ICE_VF_STATE_QS_ENA, pf->vf[i].vf_states))
366 ice_dis_vf_qs(&pf->vf[i]);
368 tmp = pf->num_alloc_vfs;
369 pf->num_qps_per_vf = 0;
370 pf->num_alloc_vfs = 0;
371 for (i = 0; i < tmp; i++) {
372 if (test_bit(ICE_VF_STATE_INIT, pf->vf[i].vf_states)) {
373 /* disable VF qp mappings and set VF disable state */
374 ice_dis_vf_mappings(&pf->vf[i]);
375 set_bit(ICE_VF_STATE_DIS, pf->vf[i].vf_states);
376 ice_free_vf_res(&pf->vf[i]);
380 if (ice_sriov_free_msix_res(pf))
381 dev_err(dev, "Failed to free MSIX resources used by SR-IOV\n");
383 devm_kfree(dev, pf->vf);
386 /* This check is for when the driver is unloaded while VFs are
387 * assigned. Setting the number of VFs to 0 through sysfs is caught
388 * before this function ever gets called.
390 if (!pci_vfs_assigned(pf->pdev)) {
393 /* Acknowledge VFLR for all VFs. Without this, VFs will fail to
394 * work correctly when SR-IOV gets re-enabled.
396 for (vf_id = 0; vf_id < tmp; vf_id++) {
397 u32 reg_idx, bit_idx;
399 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
400 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
401 wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
404 clear_bit(__ICE_VF_DIS, pf->state);
405 clear_bit(ICE_FLAG_SRIOV_ENA, pf->flags);
409 * ice_trigger_vf_reset - Reset a VF on HW
410 * @vf: pointer to the VF structure
411 * @is_vflr: true if VFLR was issued, false if not
412 * @is_pfr: true if the reset was triggered due to a previous PFR
414 * Trigger hardware to start a reset for a particular VF. Expects the caller
415 * to wait the proper amount of time to allow hardware to reset the VF before
416 * it cleans up and restores VF functionality.
418 static void ice_trigger_vf_reset(struct ice_vf *vf, bool is_vflr, bool is_pfr)
420 struct ice_pf *pf = vf->pf;
421 u32 reg, reg_idx, bit_idx;
422 unsigned int vf_abs_id, i;
426 dev = ice_pf_to_dev(pf);
428 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
430 /* Inform VF that it is no longer active, as a warning */
431 clear_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
433 /* Disable VF's configuration API during reset. The flag is re-enabled
434 * when it's safe again to access VF's VSI.
436 clear_bit(ICE_VF_STATE_INIT, vf->vf_states);
438 /* VF_MBX_ARQLEN is cleared by PFR, so the driver needs to clear it
439 * in the case of VFR. If this is done for PFR, it can mess up VF
440 * resets because the VF driver may already have started cleanup
441 * by the time we get here.
444 wr32(hw, VF_MBX_ARQLEN(vf->vf_id), 0);
446 /* In the case of a VFLR, the HW has already reset the VF and we
447 * just need to clean up, so don't hit the VFRTRIG register.
450 /* reset VF using VPGEN_VFRTRIG reg */
451 reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id));
452 reg |= VPGEN_VFRTRIG_VFSWR_M;
453 wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg);
455 /* clear the VFLR bit in GLGEN_VFLRSTAT */
456 reg_idx = (vf_abs_id) / 32;
457 bit_idx = (vf_abs_id) % 32;
458 wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
461 wr32(hw, PF_PCI_CIAA,
462 VF_DEVICE_STATUS | (vf_abs_id << PF_PCI_CIAA_VF_NUM_S));
463 for (i = 0; i < ICE_PCI_CIAD_WAIT_COUNT; i++) {
464 reg = rd32(hw, PF_PCI_CIAD);
465 /* no transactions pending so stop polling */
466 if ((reg & VF_TRANS_PENDING_M) == 0)
469 dev_err(dev, "VF %u PCI transactions stuck\n", vf->vf_id);
470 udelay(ICE_PCI_CIAD_WAIT_DELAY_US);
475 * ice_vsi_manage_pvid - Enable or disable port VLAN for VSI
476 * @vsi: the VSI to update
477 * @pvid_info: VLAN ID and QoS used to set the PVID VSI context field
478 * @enable: true for enable PVID false for disable
480 static int ice_vsi_manage_pvid(struct ice_vsi *vsi, u16 pvid_info, bool enable)
482 struct ice_hw *hw = &vsi->back->hw;
483 struct ice_aqc_vsi_props *info;
484 struct ice_vsi_ctx *ctxt;
485 enum ice_status status;
488 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
492 ctxt->info = vsi->info;
495 info->vlan_flags = ICE_AQ_VSI_VLAN_MODE_UNTAGGED |
496 ICE_AQ_VSI_PVLAN_INSERT_PVID |
497 ICE_AQ_VSI_VLAN_EMOD_STR;
498 info->sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
500 info->vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING |
501 ICE_AQ_VSI_VLAN_MODE_ALL;
502 info->sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
505 info->pvid = cpu_to_le16(pvid_info);
506 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
507 ICE_AQ_VSI_PROP_SW_VALID);
509 status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
511 dev_info(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %s aq_err %s\n",
512 ice_stat_str(status),
513 ice_aq_str(hw->adminq.sq_last_status));
518 vsi->info.vlan_flags = info->vlan_flags;
519 vsi->info.sw_flags2 = info->sw_flags2;
520 vsi->info.pvid = info->pvid;
527 * ice_vf_get_port_info - Get the VF's port info structure
528 * @vf: VF used to get the port info structure for
530 static struct ice_port_info *ice_vf_get_port_info(struct ice_vf *vf)
532 return vf->pf->hw.port_info;
536 * ice_vf_vsi_setup - Set up a VF VSI
537 * @vf: VF to setup VSI for
539 * Returns pointer to the successfully allocated VSI struct on success,
540 * otherwise returns NULL on failure.
542 static struct ice_vsi *ice_vf_vsi_setup(struct ice_vf *vf)
544 struct ice_port_info *pi = ice_vf_get_port_info(vf);
545 struct ice_pf *pf = vf->pf;
548 vsi = ice_vsi_setup(pf, pi, ICE_VSI_VF, vf->vf_id);
551 dev_err(ice_pf_to_dev(pf), "Failed to create VF VSI\n");
552 ice_vf_invalidate_vsi(vf);
556 vf->lan_vsi_idx = vsi->idx;
557 vf->lan_vsi_num = vsi->vsi_num;
563 * ice_calc_vf_first_vector_idx - Calculate MSIX vector index in the PF space
564 * @pf: pointer to PF structure
565 * @vf: pointer to VF that the first MSIX vector index is being calculated for
567 * This returns the first MSIX vector index in PF space that is used by this VF.
568 * This index is used when accessing PF relative registers such as
569 * GLINT_VECT2FUNC and GLINT_DYN_CTL.
570 * This will always be the OICR index in the AVF driver so any functionality
571 * using vf->first_vector_idx for queue configuration will have to increment by
572 * 1 to avoid meddling with the OICR index.
574 static int ice_calc_vf_first_vector_idx(struct ice_pf *pf, struct ice_vf *vf)
576 return pf->sriov_base_vector + vf->vf_id * pf->num_msix_per_vf;
580 * ice_vf_rebuild_host_vlan_cfg - add VLAN 0 filter or rebuild the Port VLAN
581 * @vf: VF to add MAC filters for
583 * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
584 * always re-adds either a VLAN 0 or port VLAN based filter after reset.
586 static int ice_vf_rebuild_host_vlan_cfg(struct ice_vf *vf)
588 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
589 struct device *dev = ice_pf_to_dev(vf->pf);
593 if (vf->port_vlan_info) {
594 err = ice_vsi_manage_pvid(vsi, vf->port_vlan_info, true);
596 dev_err(dev, "failed to configure port VLAN via VSI parameters for VF %u, error %d\n",
601 vlan_id = vf->port_vlan_info & VLAN_VID_MASK;
604 /* vlan_id will either be 0 or the port VLAN number */
605 err = ice_vsi_add_vlan(vsi, vlan_id, ICE_FWD_TO_VSI);
607 dev_err(dev, "failed to add %s VLAN %u filter for VF %u, error %d\n",
608 vf->port_vlan_info ? "port" : "", vlan_id, vf->vf_id,
617 * ice_vf_rebuild_host_mac_cfg - add broadcast and the VF's perm_addr/LAA
618 * @vf: VF to add MAC filters for
620 * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
621 * always re-adds a broadcast filter and the VF's perm_addr/LAA after reset.
623 static int ice_vf_rebuild_host_mac_cfg(struct ice_vf *vf)
625 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
626 struct device *dev = ice_pf_to_dev(vf->pf);
627 enum ice_status status;
628 u8 broadcast[ETH_ALEN];
630 eth_broadcast_addr(broadcast);
631 status = ice_fltr_add_mac(vsi, broadcast, ICE_FWD_TO_VSI);
633 dev_err(dev, "failed to add broadcast MAC filter for VF %u, error %s\n",
634 vf->vf_id, ice_stat_str(status));
635 return ice_status_to_errno(status);
640 if (is_valid_ether_addr(vf->dflt_lan_addr.addr)) {
641 status = ice_fltr_add_mac(vsi, vf->dflt_lan_addr.addr,
644 dev_err(dev, "failed to add default unicast MAC filter %pM for VF %u, error %s\n",
645 &vf->dflt_lan_addr.addr[0], vf->vf_id,
646 ice_stat_str(status));
647 return ice_status_to_errno(status);
656 * ice_vf_set_host_trust_cfg - set trust setting based on pre-reset value
657 * @vf: VF to configure trust setting for
659 static void ice_vf_set_host_trust_cfg(struct ice_vf *vf)
662 set_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
664 clear_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
668 * ice_ena_vf_msix_mappings - enable VF MSIX mappings in hardware
669 * @vf: VF to enable MSIX mappings for
671 * Some of the registers need to be indexed/configured using hardware global
672 * device values and other registers need 0-based values, which represent PF
675 static void ice_ena_vf_msix_mappings(struct ice_vf *vf)
677 int device_based_first_msix, device_based_last_msix;
678 int pf_based_first_msix, pf_based_last_msix, v;
679 struct ice_pf *pf = vf->pf;
680 int device_based_vf_id;
685 pf_based_first_msix = vf->first_vector_idx;
686 pf_based_last_msix = (pf_based_first_msix + pf->num_msix_per_vf) - 1;
688 device_based_first_msix = pf_based_first_msix +
689 pf->hw.func_caps.common_cap.msix_vector_first_id;
690 device_based_last_msix =
691 (device_based_first_msix + pf->num_msix_per_vf) - 1;
692 device_based_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
694 reg = (((device_based_first_msix << VPINT_ALLOC_FIRST_S) &
695 VPINT_ALLOC_FIRST_M) |
696 ((device_based_last_msix << VPINT_ALLOC_LAST_S) &
697 VPINT_ALLOC_LAST_M) | VPINT_ALLOC_VALID_M);
698 wr32(hw, VPINT_ALLOC(vf->vf_id), reg);
700 reg = (((device_based_first_msix << VPINT_ALLOC_PCI_FIRST_S)
701 & VPINT_ALLOC_PCI_FIRST_M) |
702 ((device_based_last_msix << VPINT_ALLOC_PCI_LAST_S) &
703 VPINT_ALLOC_PCI_LAST_M) | VPINT_ALLOC_PCI_VALID_M);
704 wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), reg);
706 /* map the interrupts to its functions */
707 for (v = pf_based_first_msix; v <= pf_based_last_msix; v++) {
708 reg = (((device_based_vf_id << GLINT_VECT2FUNC_VF_NUM_S) &
709 GLINT_VECT2FUNC_VF_NUM_M) |
710 ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) &
711 GLINT_VECT2FUNC_PF_NUM_M));
712 wr32(hw, GLINT_VECT2FUNC(v), reg);
715 /* Map mailbox interrupt to VF MSI-X vector 0 */
716 wr32(hw, VPINT_MBX_CTL(device_based_vf_id), VPINT_MBX_CTL_CAUSE_ENA_M);
720 * ice_ena_vf_q_mappings - enable Rx/Tx queue mappings for a VF
721 * @vf: VF to enable the mappings for
722 * @max_txq: max Tx queues allowed on the VF's VSI
723 * @max_rxq: max Rx queues allowed on the VF's VSI
725 static void ice_ena_vf_q_mappings(struct ice_vf *vf, u16 max_txq, u16 max_rxq)
727 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
728 struct device *dev = ice_pf_to_dev(vf->pf);
729 struct ice_hw *hw = &vf->pf->hw;
732 /* set regardless of mapping mode */
733 wr32(hw, VPLAN_TXQ_MAPENA(vf->vf_id), VPLAN_TXQ_MAPENA_TX_ENA_M);
735 /* VF Tx queues allocation */
736 if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) {
737 /* set the VF PF Tx queue range
738 * VFNUMQ value should be set to (number of queues - 1). A value
739 * of 0 means 1 queue and a value of 255 means 256 queues
741 reg = (((vsi->txq_map[0] << VPLAN_TX_QBASE_VFFIRSTQ_S) &
742 VPLAN_TX_QBASE_VFFIRSTQ_M) |
743 (((max_txq - 1) << VPLAN_TX_QBASE_VFNUMQ_S) &
744 VPLAN_TX_QBASE_VFNUMQ_M));
745 wr32(hw, VPLAN_TX_QBASE(vf->vf_id), reg);
747 dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n");
750 /* set regardless of mapping mode */
751 wr32(hw, VPLAN_RXQ_MAPENA(vf->vf_id), VPLAN_RXQ_MAPENA_RX_ENA_M);
753 /* VF Rx queues allocation */
754 if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) {
755 /* set the VF PF Rx queue range
756 * VFNUMQ value should be set to (number of queues - 1). A value
757 * of 0 means 1 queue and a value of 255 means 256 queues
759 reg = (((vsi->rxq_map[0] << VPLAN_RX_QBASE_VFFIRSTQ_S) &
760 VPLAN_RX_QBASE_VFFIRSTQ_M) |
761 (((max_rxq - 1) << VPLAN_RX_QBASE_VFNUMQ_S) &
762 VPLAN_RX_QBASE_VFNUMQ_M));
763 wr32(hw, VPLAN_RX_QBASE(vf->vf_id), reg);
765 dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n");
770 * ice_ena_vf_mappings - enable VF MSIX and queue mapping
771 * @vf: pointer to the VF structure
773 static void ice_ena_vf_mappings(struct ice_vf *vf)
775 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
777 ice_ena_vf_msix_mappings(vf);
778 ice_ena_vf_q_mappings(vf, vsi->alloc_txq, vsi->alloc_rxq);
783 * @pf: pointer to the PF structure
784 * @avail_res: available resources in the PF structure
785 * @max_res: maximum resources that can be given per VF
786 * @min_res: minimum resources that can be given per VF
788 * Returns non-zero value if resources (queues/vectors) are available or
789 * returns zero if PF cannot accommodate for all num_alloc_vfs.
792 ice_determine_res(struct ice_pf *pf, u16 avail_res, u16 max_res, u16 min_res)
794 bool checked_min_res = false;
797 /* start by checking if PF can assign max number of resources for
799 * if yes, return number per VF
800 * If no, divide by 2 and roundup, check again
801 * repeat the loop till we reach a point where even minimum resources
802 * are not available, in that case return 0
805 while ((res >= min_res) && !checked_min_res) {
808 num_all_res = pf->num_alloc_vfs * res;
809 if (num_all_res <= avail_res)
813 checked_min_res = true;
815 res = DIV_ROUND_UP(res, 2);
821 * ice_calc_vf_reg_idx - Calculate the VF's register index in the PF space
822 * @vf: VF to calculate the register index for
823 * @q_vector: a q_vector associated to the VF
825 int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector)
829 if (!vf || !q_vector)
834 /* always add one to account for the OICR being the first MSIX */
835 return pf->sriov_base_vector + pf->num_msix_per_vf * vf->vf_id +
840 * ice_get_max_valid_res_idx - Get the max valid resource index
841 * @res: pointer to the resource to find the max valid index for
843 * Start from the end of the ice_res_tracker and return right when we find the
844 * first res->list entry with the ICE_RES_VALID_BIT set. This function is only
845 * valid for SR-IOV because it is the only consumer that manipulates the
846 * res->end and this is always called when res->end is set to res->num_entries.
848 static int ice_get_max_valid_res_idx(struct ice_res_tracker *res)
855 for (i = res->num_entries - 1; i >= 0; i--)
856 if (res->list[i] & ICE_RES_VALID_BIT)
863 * ice_sriov_set_msix_res - Set any used MSIX resources
864 * @pf: pointer to PF structure
865 * @num_msix_needed: number of MSIX vectors needed for all SR-IOV VFs
867 * This function allows SR-IOV resources to be taken from the end of the PF's
868 * allowed HW MSIX vectors so that the irq_tracker will not be affected. We
869 * just set the pf->sriov_base_vector and return success.
871 * If there are not enough resources available, return an error. This should
872 * always be caught by ice_set_per_vf_res().
874 * Return 0 on success, and -EINVAL when there are not enough MSIX vectors
875 * in the PF's space available for SR-IOV.
877 static int ice_sriov_set_msix_res(struct ice_pf *pf, u16 num_msix_needed)
879 u16 total_vectors = pf->hw.func_caps.common_cap.num_msix_vectors;
880 int vectors_used = pf->irq_tracker->num_entries;
881 int sriov_base_vector;
883 sriov_base_vector = total_vectors - num_msix_needed;
885 /* make sure we only grab irq_tracker entries from the list end and
886 * that we have enough available MSIX vectors
888 if (sriov_base_vector < vectors_used)
891 pf->sriov_base_vector = sriov_base_vector;
897 * ice_set_per_vf_res - check if vectors and queues are available
898 * @pf: pointer to the PF structure
900 * First, determine HW interrupts from common pool. If we allocate fewer VFs, we
901 * get more vectors and can enable more queues per VF. Note that this does not
902 * grab any vectors from the SW pool already allocated. Also note, that all
903 * vector counts include one for each VF's miscellaneous interrupt vector
906 * Minimum VFs - 2 vectors, 1 queue pair
907 * Small VFs - 5 vectors, 4 queue pairs
908 * Medium VFs - 17 vectors, 16 queue pairs
910 * Second, determine number of queue pairs per VF by starting with a pre-defined
911 * maximum each VF supports. If this is not possible, then we adjust based on
912 * queue pairs available on the device.
914 * Lastly, set queue and MSI-X VF variables tracked by the PF so it can be used
915 * by each VF during VF initialization and reset.
917 static int ice_set_per_vf_res(struct ice_pf *pf)
919 int max_valid_res_idx = ice_get_max_valid_res_idx(pf->irq_tracker);
920 int msix_avail_per_vf, msix_avail_for_sriov;
921 struct device *dev = ice_pf_to_dev(pf);
922 u16 num_msix_per_vf, num_txq, num_rxq;
924 if (!pf->num_alloc_vfs || max_valid_res_idx < 0)
927 /* determine MSI-X resources per VF */
928 msix_avail_for_sriov = pf->hw.func_caps.common_cap.num_msix_vectors -
929 pf->irq_tracker->num_entries;
930 msix_avail_per_vf = msix_avail_for_sriov / pf->num_alloc_vfs;
931 if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MED) {
932 num_msix_per_vf = ICE_NUM_VF_MSIX_MED;
933 } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_SMALL) {
934 num_msix_per_vf = ICE_NUM_VF_MSIX_SMALL;
935 } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MULTIQ_MIN) {
936 num_msix_per_vf = ICE_NUM_VF_MSIX_MULTIQ_MIN;
937 } else if (msix_avail_per_vf >= ICE_MIN_INTR_PER_VF) {
938 num_msix_per_vf = ICE_MIN_INTR_PER_VF;
940 dev_err(dev, "Only %d MSI-X interrupts available for SR-IOV. Not enough to support minimum of %d MSI-X interrupts per VF for %d VFs\n",
941 msix_avail_for_sriov, ICE_MIN_INTR_PER_VF,
946 /* determine queue resources per VF */
947 num_txq = ice_determine_res(pf, ice_get_avail_txq_count(pf),
949 num_msix_per_vf - ICE_NONQ_VECS_VF,
950 ICE_MAX_RSS_QS_PER_VF),
953 num_rxq = ice_determine_res(pf, ice_get_avail_rxq_count(pf),
955 num_msix_per_vf - ICE_NONQ_VECS_VF,
956 ICE_MAX_RSS_QS_PER_VF),
959 if (!num_txq || !num_rxq) {
960 dev_err(dev, "Not enough queues to support minimum of %d queue pairs per VF for %d VFs\n",
961 ICE_MIN_QS_PER_VF, pf->num_alloc_vfs);
965 if (ice_sriov_set_msix_res(pf, num_msix_per_vf * pf->num_alloc_vfs)) {
966 dev_err(dev, "Unable to set MSI-X resources for %d VFs\n",
971 /* only allow equal Tx/Rx queue count (i.e. queue pairs) */
972 pf->num_qps_per_vf = min_t(int, num_txq, num_rxq);
973 pf->num_msix_per_vf = num_msix_per_vf;
974 dev_info(dev, "Enabling %d VFs with %d vectors and %d queues per VF\n",
975 pf->num_alloc_vfs, pf->num_msix_per_vf, pf->num_qps_per_vf);
981 * ice_clear_vf_reset_trigger - enable VF to access hardware
982 * @vf: VF to enabled hardware access for
984 static void ice_clear_vf_reset_trigger(struct ice_vf *vf)
986 struct ice_hw *hw = &vf->pf->hw;
989 reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id));
990 reg &= ~VPGEN_VFRTRIG_VFSWR_M;
991 wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg);
996 * ice_vf_set_vsi_promisc - set given VF VSI to given promiscuous mode(s)
997 * @vf: pointer to the VF info
998 * @vsi: the VSI being configured
999 * @promisc_m: mask of promiscuous config bits
1000 * @rm_promisc: promisc flag request from the VF to remove or add filter
1002 * This function configures VF VSI promiscuous mode, based on the VF requests,
1003 * for Unicast, Multicast and VLAN
1005 static enum ice_status
1006 ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m,
1009 struct ice_pf *pf = vf->pf;
1010 enum ice_status status = 0;
1014 if (vsi->num_vlan) {
1015 status = ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_m,
1017 } else if (vf->port_vlan_info) {
1019 status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m,
1020 vf->port_vlan_info);
1022 status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m,
1023 vf->port_vlan_info);
1026 status = ice_clear_vsi_promisc(hw, vsi->idx, promisc_m,
1029 status = ice_set_vsi_promisc(hw, vsi->idx, promisc_m,
1036 static void ice_vf_clear_counters(struct ice_vf *vf)
1038 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
1042 memset(&vf->mdd_tx_events, 0, sizeof(vf->mdd_tx_events));
1043 memset(&vf->mdd_rx_events, 0, sizeof(vf->mdd_rx_events));
1047 * ice_vf_pre_vsi_rebuild - tasks to be done prior to VSI rebuild
1048 * @vf: VF to perform pre VSI rebuild tasks
1050 * These tasks are items that don't need to be amortized since they are most
1051 * likely called in a for loop with all VF(s) in the reset_all_vfs() case.
1053 static void ice_vf_pre_vsi_rebuild(struct ice_vf *vf)
1055 ice_vf_clear_counters(vf);
1056 ice_clear_vf_reset_trigger(vf);
1060 * ice_vf_rebuild_aggregator_node_cfg - rebuild aggregator node config
1061 * @vsi: Pointer to VSI
1063 * This function moves VSI into corresponding scheduler aggregator node
1064 * based on cached value of "aggregator node info" per VSI
1066 static void ice_vf_rebuild_aggregator_node_cfg(struct ice_vsi *vsi)
1068 struct ice_pf *pf = vsi->back;
1069 enum ice_status status;
1075 dev = ice_pf_to_dev(pf);
1076 if (vsi->agg_node->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) {
1078 "agg_id %u already has reached max_num_vsis %u\n",
1079 vsi->agg_node->agg_id, vsi->agg_node->num_vsis);
1083 status = ice_move_vsi_to_agg(pf->hw.port_info, vsi->agg_node->agg_id,
1084 vsi->idx, vsi->tc_cfg.ena_tc);
1086 dev_dbg(dev, "unable to move VSI idx %u into aggregator %u node",
1087 vsi->idx, vsi->agg_node->agg_id);
1089 vsi->agg_node->num_vsis++;
1093 * ice_vf_rebuild_host_cfg - host admin configuration is persistent across reset
1094 * @vf: VF to rebuild host configuration on
1096 static void ice_vf_rebuild_host_cfg(struct ice_vf *vf)
1098 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
1099 struct device *dev = ice_pf_to_dev(vf->pf);
1101 ice_vf_set_host_trust_cfg(vf);
1103 if (ice_vf_rebuild_host_mac_cfg(vf))
1104 dev_err(dev, "failed to rebuild default MAC configuration for VF %d\n",
1107 if (ice_vf_rebuild_host_vlan_cfg(vf))
1108 dev_err(dev, "failed to rebuild VLAN configuration for VF %u\n",
1110 /* rebuild aggregator node config for main VF VSI */
1111 ice_vf_rebuild_aggregator_node_cfg(vsi);
1115 * ice_vf_rebuild_vsi_with_release - release and setup the VF's VSI
1116 * @vf: VF to release and setup the VSI for
1118 * This is only called when a single VF is being reset (i.e. VFR, VFLR, host VF
1119 * configuration change, etc.).
1121 static int ice_vf_rebuild_vsi_with_release(struct ice_vf *vf)
1123 ice_vf_vsi_release(vf);
1124 if (!ice_vf_vsi_setup(vf))
1131 * ice_vf_rebuild_vsi - rebuild the VF's VSI
1132 * @vf: VF to rebuild the VSI for
1134 * This is only called when all VF(s) are being reset (i.e. PCIe Reset on the
1135 * host, PFR, CORER, etc.).
1137 static int ice_vf_rebuild_vsi(struct ice_vf *vf)
1139 struct ice_pf *pf = vf->pf;
1140 struct ice_vsi *vsi;
1142 vsi = pf->vsi[vf->lan_vsi_idx];
1144 if (ice_vsi_rebuild(vsi, true)) {
1145 dev_err(ice_pf_to_dev(pf), "failed to rebuild VF %d VSI\n",
1149 /* vsi->idx will remain the same in this case so don't update
1152 vsi->vsi_num = ice_get_hw_vsi_num(&pf->hw, vsi->idx);
1153 vf->lan_vsi_num = vsi->vsi_num;
1159 * ice_vf_set_initialized - VF is ready for VIRTCHNL communication
1160 * @vf: VF to set in initialized state
1162 * After this function the VF will be ready to receive/handle the
1163 * VIRTCHNL_OP_GET_VF_RESOURCES message
1165 static void ice_vf_set_initialized(struct ice_vf *vf)
1167 ice_set_vf_state_qs_dis(vf);
1168 clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states);
1169 clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states);
1170 clear_bit(ICE_VF_STATE_DIS, vf->vf_states);
1171 set_bit(ICE_VF_STATE_INIT, vf->vf_states);
1175 * ice_vf_post_vsi_rebuild - tasks to do after the VF's VSI have been rebuilt
1176 * @vf: VF to perform tasks on
1178 static void ice_vf_post_vsi_rebuild(struct ice_vf *vf)
1180 struct ice_pf *pf = vf->pf;
1185 ice_vf_rebuild_host_cfg(vf);
1187 ice_vf_set_initialized(vf);
1188 ice_ena_vf_mappings(vf);
1189 wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1193 * ice_reset_all_vfs - reset all allocated VFs in one go
1194 * @pf: pointer to the PF structure
1195 * @is_vflr: true if VFLR was issued, false if not
1197 * First, tell the hardware to reset each VF, then do all the waiting in one
1198 * chunk, and finally finish restoring each VF after the wait. This is useful
1199 * during PF routines which need to reset all VFs, as otherwise it must perform
1200 * these resets in a serialized fashion.
1202 * Returns true if any VFs were reset, and false otherwise.
1204 bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr)
1206 struct device *dev = ice_pf_to_dev(pf);
1207 struct ice_hw *hw = &pf->hw;
1211 /* If we don't have any VFs, then there is nothing to reset */
1212 if (!pf->num_alloc_vfs)
1215 /* If VFs have been disabled, there is no need to reset */
1216 if (test_and_set_bit(__ICE_VF_DIS, pf->state))
1219 /* Begin reset on all VFs at once */
1220 ice_for_each_vf(pf, v)
1221 ice_trigger_vf_reset(&pf->vf[v], is_vflr, true);
1223 /* HW requires some time to make sure it can flush the FIFO for a VF
1224 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1225 * sequence to make sure that it has completed. We'll keep track of
1226 * the VFs using a simple iterator that increments once that VF has
1227 * finished resetting.
1229 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1230 /* Check each VF in sequence */
1231 while (v < pf->num_alloc_vfs) {
1235 reg = rd32(hw, VPGEN_VFRSTAT(vf->vf_id));
1236 if (!(reg & VPGEN_VFRSTAT_VFRD_M)) {
1237 /* only delay if the check failed */
1238 usleep_range(10, 20);
1242 /* If the current VF has finished resetting, move on
1243 * to the next VF in sequence.
1249 /* Display a warning if at least one VF didn't manage to reset in
1250 * time, but continue on with the operation.
1252 if (v < pf->num_alloc_vfs)
1253 dev_warn(dev, "VF reset check timeout\n");
1255 /* free VF resources to begin resetting the VSI state */
1256 ice_for_each_vf(pf, v) {
1259 ice_vf_pre_vsi_rebuild(vf);
1260 ice_vf_rebuild_vsi(vf);
1261 ice_vf_post_vsi_rebuild(vf);
1265 clear_bit(__ICE_VF_DIS, pf->state);
1271 * ice_is_vf_disabled
1272 * @vf: pointer to the VF info
1274 * Returns true if the PF or VF is disabled, false otherwise.
1276 static bool ice_is_vf_disabled(struct ice_vf *vf)
1278 struct ice_pf *pf = vf->pf;
1280 /* If the PF has been disabled, there is no need resetting VF until
1281 * PF is active again. Similarly, if the VF has been disabled, this
1282 * means something else is resetting the VF, so we shouldn't continue.
1283 * Otherwise, set disable VF state bit for actual reset, and continue.
1285 return (test_bit(__ICE_VF_DIS, pf->state) ||
1286 test_bit(ICE_VF_STATE_DIS, vf->vf_states));
1290 * ice_reset_vf - Reset a particular VF
1291 * @vf: pointer to the VF structure
1292 * @is_vflr: true if VFLR was issued, false if not
1294 * Returns true if the VF is currently in reset, resets successfully, or resets
1295 * are disabled and false otherwise.
1297 bool ice_reset_vf(struct ice_vf *vf, bool is_vflr)
1299 struct ice_pf *pf = vf->pf;
1300 struct ice_vsi *vsi;
1308 dev = ice_pf_to_dev(pf);
1310 if (test_bit(__ICE_VF_RESETS_DISABLED, pf->state)) {
1311 dev_dbg(dev, "Trying to reset VF %d, but all VF resets are disabled\n",
1316 if (ice_is_vf_disabled(vf)) {
1317 dev_dbg(dev, "VF is already disabled, there is no need for resetting it, telling VM, all is fine %d\n",
1322 /* Set VF disable bit state here, before triggering reset */
1323 set_bit(ICE_VF_STATE_DIS, vf->vf_states);
1324 ice_trigger_vf_reset(vf, is_vflr, false);
1326 vsi = pf->vsi[vf->lan_vsi_idx];
1328 if (test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states))
1331 /* Call Disable LAN Tx queue AQ whether or not queues are
1332 * enabled. This is needed for successful completion of VFR.
1334 ice_dis_vsi_txq(vsi->port_info, vsi->idx, 0, 0, NULL, NULL,
1335 NULL, ICE_VF_RESET, vf->vf_id, NULL);
1338 /* poll VPGEN_VFRSTAT reg to make sure
1339 * that reset is complete
1341 for (i = 0; i < 10; i++) {
1342 /* VF reset requires driver to first reset the VF and then
1343 * poll the status register to make sure that the reset
1344 * completed successfully.
1346 reg = rd32(hw, VPGEN_VFRSTAT(vf->vf_id));
1347 if (reg & VPGEN_VFRSTAT_VFRD_M) {
1352 /* only sleep if the reset is not done */
1353 usleep_range(10, 20);
1356 /* Display a warning if VF didn't manage to reset in time, but need to
1357 * continue on with the operation.
1360 dev_warn(dev, "VF reset check timeout on VF %d\n", vf->vf_id);
1362 /* disable promiscuous modes in case they were enabled
1363 * ignore any error if disabling process failed
1365 if (test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
1366 test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) {
1367 if (vf->port_vlan_info || vsi->num_vlan)
1368 promisc_m = ICE_UCAST_VLAN_PROMISC_BITS;
1370 promisc_m = ICE_UCAST_PROMISC_BITS;
1372 vsi = pf->vsi[vf->lan_vsi_idx];
1373 if (ice_vf_set_vsi_promisc(vf, vsi, promisc_m, true))
1374 dev_err(dev, "disabling promiscuous mode failed\n");
1377 ice_vf_pre_vsi_rebuild(vf);
1378 ice_vf_rebuild_vsi_with_release(vf);
1379 ice_vf_post_vsi_rebuild(vf);
1385 * ice_vc_notify_link_state - Inform all VFs on a PF of link status
1386 * @pf: pointer to the PF structure
1388 void ice_vc_notify_link_state(struct ice_pf *pf)
1392 ice_for_each_vf(pf, i)
1393 ice_vc_notify_vf_link_state(&pf->vf[i]);
1397 * ice_vc_notify_reset - Send pending reset message to all VFs
1398 * @pf: pointer to the PF structure
1400 * indicate a pending reset to all VFs on a given PF
1402 void ice_vc_notify_reset(struct ice_pf *pf)
1404 struct virtchnl_pf_event pfe;
1406 if (!pf->num_alloc_vfs)
1409 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
1410 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
1411 ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS,
1412 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
1416 * ice_vc_notify_vf_reset - Notify VF of a reset event
1417 * @vf: pointer to the VF structure
1419 static void ice_vc_notify_vf_reset(struct ice_vf *vf)
1421 struct virtchnl_pf_event pfe;
1428 if (ice_validate_vf_id(pf, vf->vf_id))
1431 /* Bail out if VF is in disabled state, neither initialized, nor active
1432 * state - otherwise proceed with notifications
1434 if ((!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
1435 !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) ||
1436 test_bit(ICE_VF_STATE_DIS, vf->vf_states))
1439 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
1440 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
1441 ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, VIRTCHNL_OP_EVENT,
1442 VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, sizeof(pfe),
1447 * ice_init_vf_vsi_res - initialize/setup VF VSI resources
1448 * @vf: VF to initialize/setup the VSI for
1450 * This function creates a VSI for the VF, adds a VLAN 0 filter, and sets up the
1451 * VF VSI's broadcast filter and is only used during initial VF creation.
1453 static int ice_init_vf_vsi_res(struct ice_vf *vf)
1455 struct ice_pf *pf = vf->pf;
1456 u8 broadcast[ETH_ALEN];
1457 enum ice_status status;
1458 struct ice_vsi *vsi;
1462 vf->first_vector_idx = ice_calc_vf_first_vector_idx(pf, vf);
1464 dev = ice_pf_to_dev(pf);
1465 vsi = ice_vf_vsi_setup(vf);
1469 err = ice_vsi_add_vlan(vsi, 0, ICE_FWD_TO_VSI);
1471 dev_warn(dev, "Failed to add VLAN 0 filter for VF %d\n",
1476 eth_broadcast_addr(broadcast);
1477 status = ice_fltr_add_mac(vsi, broadcast, ICE_FWD_TO_VSI);
1479 dev_err(dev, "Failed to add broadcast MAC filter for VF %d, status %s\n",
1480 vf->vf_id, ice_stat_str(status));
1481 err = ice_status_to_errno(status);
1490 ice_vf_vsi_release(vf);
1495 * ice_start_vfs - start VFs so they are ready to be used by SR-IOV
1496 * @pf: PF the VFs are associated with
1498 static int ice_start_vfs(struct ice_pf *pf)
1500 struct ice_hw *hw = &pf->hw;
1503 ice_for_each_vf(pf, i) {
1504 struct ice_vf *vf = &pf->vf[i];
1506 ice_clear_vf_reset_trigger(vf);
1508 retval = ice_init_vf_vsi_res(vf);
1510 dev_err(ice_pf_to_dev(pf), "Failed to initialize VSI resources for VF %d, error %d\n",
1515 set_bit(ICE_VF_STATE_INIT, vf->vf_states);
1516 ice_ena_vf_mappings(vf);
1517 wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1524 for (i = i - 1; i >= 0; i--) {
1525 struct ice_vf *vf = &pf->vf[i];
1527 ice_dis_vf_mappings(vf);
1528 ice_vf_vsi_release(vf);
1535 * ice_set_dflt_settings - set VF defaults during initialization/creation
1536 * @pf: PF holding reference to all VFs for default configuration
1538 static void ice_set_dflt_settings_vfs(struct ice_pf *pf)
1542 ice_for_each_vf(pf, i) {
1543 struct ice_vf *vf = &pf->vf[i];
1547 vf->vf_sw_id = pf->first_sw;
1548 /* assign default capabilities */
1549 set_bit(ICE_VIRTCHNL_VF_CAP_L2, &vf->vf_caps);
1550 vf->spoofchk = true;
1551 vf->num_vf_qs = pf->num_qps_per_vf;
1556 * ice_alloc_vfs - allocate num_vfs in the PF structure
1557 * @pf: PF to store the allocated VFs in
1558 * @num_vfs: number of VFs to allocate
1560 static int ice_alloc_vfs(struct ice_pf *pf, int num_vfs)
1564 vfs = devm_kcalloc(ice_pf_to_dev(pf), num_vfs, sizeof(*vfs),
1570 pf->num_alloc_vfs = num_vfs;
1576 * ice_ena_vfs - enable VFs so they are ready to be used
1577 * @pf: pointer to the PF structure
1578 * @num_vfs: number of VFs to enable
1580 static int ice_ena_vfs(struct ice_pf *pf, u16 num_vfs)
1582 struct device *dev = ice_pf_to_dev(pf);
1583 struct ice_hw *hw = &pf->hw;
1586 /* Disable global interrupt 0 so we don't try to handle the VFLR. */
1587 wr32(hw, GLINT_DYN_CTL(pf->oicr_idx),
1588 ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S);
1589 set_bit(__ICE_OICR_INTR_DIS, pf->state);
1592 ret = pci_enable_sriov(pf->pdev, num_vfs);
1594 pf->num_alloc_vfs = 0;
1595 goto err_unroll_intr;
1598 ret = ice_alloc_vfs(pf, num_vfs);
1600 goto err_pci_disable_sriov;
1602 if (ice_set_per_vf_res(pf)) {
1603 dev_err(dev, "Not enough resources for %d VFs, try with fewer number of VFs\n",
1606 goto err_unroll_sriov;
1609 ice_set_dflt_settings_vfs(pf);
1611 if (ice_start_vfs(pf)) {
1612 dev_err(dev, "Failed to start VF(s)\n");
1614 goto err_unroll_sriov;
1617 clear_bit(__ICE_VF_DIS, pf->state);
1621 devm_kfree(dev, pf->vf);
1623 pf->num_alloc_vfs = 0;
1624 err_pci_disable_sriov:
1625 pci_disable_sriov(pf->pdev);
1627 /* rearm interrupts here */
1628 ice_irq_dynamic_ena(hw, NULL, NULL);
1629 clear_bit(__ICE_OICR_INTR_DIS, pf->state);
1634 * ice_pci_sriov_ena - Enable or change number of VFs
1635 * @pf: pointer to the PF structure
1636 * @num_vfs: number of VFs to allocate
1638 * Returns 0 on success and negative on failure
1640 static int ice_pci_sriov_ena(struct ice_pf *pf, int num_vfs)
1642 int pre_existing_vfs = pci_num_vf(pf->pdev);
1643 struct device *dev = ice_pf_to_dev(pf);
1646 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1648 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1651 if (num_vfs > pf->num_vfs_supported) {
1652 dev_err(dev, "Can't enable %d VFs, max VFs supported is %d\n",
1653 num_vfs, pf->num_vfs_supported);
1657 dev_info(dev, "Enabling %d VFs\n", num_vfs);
1658 err = ice_ena_vfs(pf, num_vfs);
1660 dev_err(dev, "Failed to enable SR-IOV: %d\n", err);
1664 set_bit(ICE_FLAG_SRIOV_ENA, pf->flags);
1669 * ice_check_sriov_allowed - check if SR-IOV is allowed based on various checks
1670 * @pf: PF to enabled SR-IOV on
1672 static int ice_check_sriov_allowed(struct ice_pf *pf)
1674 struct device *dev = ice_pf_to_dev(pf);
1676 if (!test_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags)) {
1677 dev_err(dev, "This device is not capable of SR-IOV\n");
1681 if (ice_is_safe_mode(pf)) {
1682 dev_err(dev, "SR-IOV cannot be configured - Device is in Safe Mode\n");
1686 if (!ice_pf_state_is_nominal(pf)) {
1687 dev_err(dev, "Cannot enable SR-IOV, device not ready\n");
1695 * ice_sriov_configure - Enable or change number of VFs via sysfs
1696 * @pdev: pointer to a pci_dev structure
1697 * @num_vfs: number of VFs to allocate or 0 to free VFs
1699 * This function is called when the user updates the number of VFs in sysfs. On
1700 * success return whatever num_vfs was set to by the caller. Return negative on
1703 int ice_sriov_configure(struct pci_dev *pdev, int num_vfs)
1705 struct ice_pf *pf = pci_get_drvdata(pdev);
1706 struct device *dev = ice_pf_to_dev(pf);
1709 err = ice_check_sriov_allowed(pf);
1714 if (!pci_vfs_assigned(pdev)) {
1717 ice_enable_lag(pf->lag);
1721 dev_err(dev, "can't free VFs because some are assigned to VMs.\n");
1725 err = ice_pci_sriov_ena(pf, num_vfs);
1730 ice_disable_lag(pf->lag);
1735 * ice_process_vflr_event - Free VF resources via IRQ calls
1736 * @pf: pointer to the PF structure
1738 * called from the VFLR IRQ handler to
1739 * free up VF resources and state variables
1741 void ice_process_vflr_event(struct ice_pf *pf)
1743 struct ice_hw *hw = &pf->hw;
1747 if (!test_and_clear_bit(__ICE_VFLR_EVENT_PENDING, pf->state) ||
1751 ice_for_each_vf(pf, vf_id) {
1752 struct ice_vf *vf = &pf->vf[vf_id];
1753 u32 reg_idx, bit_idx;
1755 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1756 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1757 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
1758 reg = rd32(hw, GLGEN_VFLRSTAT(reg_idx));
1759 if (reg & BIT(bit_idx))
1760 /* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */
1761 ice_reset_vf(vf, true);
1766 * ice_vc_reset_vf - Perform software reset on the VF after informing the AVF
1767 * @vf: pointer to the VF info
1769 static void ice_vc_reset_vf(struct ice_vf *vf)
1771 ice_vc_notify_vf_reset(vf);
1772 ice_reset_vf(vf, false);
1776 * ice_get_vf_from_pfq - get the VF who owns the PF space queue passed in
1777 * @pf: PF used to index all VFs
1778 * @pfq: queue index relative to the PF's function space
1780 * If no VF is found who owns the pfq then return NULL, otherwise return a
1781 * pointer to the VF who owns the pfq
1783 static struct ice_vf *ice_get_vf_from_pfq(struct ice_pf *pf, u16 pfq)
1787 ice_for_each_vf(pf, vf_id) {
1788 struct ice_vf *vf = &pf->vf[vf_id];
1789 struct ice_vsi *vsi;
1792 vsi = pf->vsi[vf->lan_vsi_idx];
1794 ice_for_each_rxq(vsi, rxq_idx)
1795 if (vsi->rxq_map[rxq_idx] == pfq)
1803 * ice_globalq_to_pfq - convert from global queue index to PF space queue index
1804 * @pf: PF used for conversion
1805 * @globalq: global queue index used to convert to PF space queue index
1807 static u32 ice_globalq_to_pfq(struct ice_pf *pf, u32 globalq)
1809 return globalq - pf->hw.func_caps.common_cap.rxq_first_id;
1813 * ice_vf_lan_overflow_event - handle LAN overflow event for a VF
1814 * @pf: PF that the LAN overflow event happened on
1815 * @event: structure holding the event information for the LAN overflow event
1817 * Determine if the LAN overflow event was caused by a VF queue. If it was not
1818 * caused by a VF, do nothing. If a VF caused this LAN overflow event trigger a
1819 * reset on the offending VF.
1822 ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event)
1824 u32 gldcb_rtctq, queue;
1827 gldcb_rtctq = le32_to_cpu(event->desc.params.lan_overflow.prtdcb_ruptq);
1828 dev_dbg(ice_pf_to_dev(pf), "GLDCB_RTCTQ: 0x%08x\n", gldcb_rtctq);
1830 /* event returns device global Rx queue number */
1831 queue = (gldcb_rtctq & GLDCB_RTCTQ_RXQNUM_M) >>
1832 GLDCB_RTCTQ_RXQNUM_S;
1834 vf = ice_get_vf_from_pfq(pf, ice_globalq_to_pfq(pf, queue));
1838 ice_vc_reset_vf(vf);
1842 * ice_vc_send_msg_to_vf - Send message to VF
1843 * @vf: pointer to the VF info
1844 * @v_opcode: virtual channel opcode
1845 * @v_retval: virtual channel return value
1846 * @msg: pointer to the msg buffer
1847 * @msglen: msg length
1852 ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
1853 enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
1855 enum ice_status aq_ret;
1863 if (ice_validate_vf_id(pf, vf->vf_id))
1866 dev = ice_pf_to_dev(pf);
1868 /* single place to detect unsuccessful return values */
1870 vf->num_inval_msgs++;
1871 dev_info(dev, "VF %d failed opcode %d, retval: %d\n", vf->vf_id,
1872 v_opcode, v_retval);
1873 if (vf->num_inval_msgs > ICE_DFLT_NUM_INVAL_MSGS_ALLOWED) {
1874 dev_err(dev, "Number of invalid messages exceeded for VF %d\n",
1876 dev_err(dev, "Use PF Control I/F to enable the VF\n");
1877 set_bit(ICE_VF_STATE_DIS, vf->vf_states);
1881 vf->num_valid_msgs++;
1882 /* reset the invalid counter, if a valid message is received. */
1883 vf->num_inval_msgs = 0;
1886 aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
1888 if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
1889 dev_info(dev, "Unable to send the message to VF %d ret %s aq_err %s\n",
1890 vf->vf_id, ice_stat_str(aq_ret),
1891 ice_aq_str(pf->hw.mailboxq.sq_last_status));
1899 * ice_vc_get_ver_msg
1900 * @vf: pointer to the VF info
1901 * @msg: pointer to the msg buffer
1903 * called from the VF to request the API version used by the PF
1905 static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg)
1907 struct virtchnl_version_info info = {
1908 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
1911 vf->vf_ver = *(struct virtchnl_version_info *)msg;
1912 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1913 if (VF_IS_V10(&vf->vf_ver))
1914 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1916 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
1917 VIRTCHNL_STATUS_SUCCESS, (u8 *)&info,
1918 sizeof(struct virtchnl_version_info));
1922 * ice_vc_get_vf_res_msg
1923 * @vf: pointer to the VF info
1924 * @msg: pointer to the msg buffer
1926 * called from the VF to request its resources
1928 static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
1930 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1931 struct virtchnl_vf_resource *vfres = NULL;
1932 struct ice_pf *pf = vf->pf;
1933 struct ice_vsi *vsi;
1937 if (ice_check_vf_init(pf, vf)) {
1938 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1942 len = sizeof(struct virtchnl_vf_resource);
1944 vfres = kzalloc(len, GFP_KERNEL);
1946 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
1950 if (VF_IS_V11(&vf->vf_ver))
1951 vf->driver_caps = *(u32 *)msg;
1953 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
1954 VIRTCHNL_VF_OFFLOAD_RSS_REG |
1955 VIRTCHNL_VF_OFFLOAD_VLAN;
1957 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
1958 vsi = pf->vsi[vf->lan_vsi_idx];
1960 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1964 if (!vsi->info.pvid)
1965 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
1967 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1968 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
1970 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1971 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1973 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
1976 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1977 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1979 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
1980 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
1982 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)
1983 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1985 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1986 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1988 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1989 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1991 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
1992 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
1994 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
1995 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
1997 vfres->num_vsis = 1;
1998 /* Tx and Rx queue are equal for VF */
1999 vfres->num_queue_pairs = vsi->num_txq;
2000 vfres->max_vectors = pf->num_msix_per_vf;
2001 vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
2002 vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
2004 vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
2005 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2006 vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
2007 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2008 vf->dflt_lan_addr.addr);
2010 /* match guest capabilities */
2011 vf->driver_caps = vfres->vf_cap_flags;
2013 set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
2016 /* send the response back to the VF */
2017 ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret,
2025 * ice_vc_reset_vf_msg
2026 * @vf: pointer to the VF info
2028 * called from the VF to reset itself,
2029 * unlike other virtchnl messages, PF driver
2030 * doesn't send the response back to the VF
2032 static void ice_vc_reset_vf_msg(struct ice_vf *vf)
2034 if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
2035 ice_reset_vf(vf, false);
2039 * ice_find_vsi_from_id
2040 * @pf: the PF structure to search for the VSI
2041 * @id: ID of the VSI it is searching for
2043 * searches for the VSI with the given ID
2045 static struct ice_vsi *ice_find_vsi_from_id(struct ice_pf *pf, u16 id)
2049 ice_for_each_vsi(pf, i)
2050 if (pf->vsi[i] && pf->vsi[i]->vsi_num == id)
2057 * ice_vc_isvalid_vsi_id
2058 * @vf: pointer to the VF info
2059 * @vsi_id: VF relative VSI ID
2061 * check for the valid VSI ID
2063 static bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
2065 struct ice_pf *pf = vf->pf;
2066 struct ice_vsi *vsi;
2068 vsi = ice_find_vsi_from_id(pf, vsi_id);
2070 return (vsi && (vsi->vf_id == vf->vf_id));
2074 * ice_vc_isvalid_q_id
2075 * @vf: pointer to the VF info
2077 * @qid: VSI relative queue ID
2079 * check for the valid queue ID
2081 static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
2083 struct ice_vsi *vsi = ice_find_vsi_from_id(vf->pf, vsi_id);
2084 /* allocated Tx and Rx queues should be always equal for VF VSI */
2085 return (vsi && (qid < vsi->alloc_txq));
2089 * ice_vc_isvalid_ring_len
2090 * @ring_len: length of ring
2092 * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
2095 static bool ice_vc_isvalid_ring_len(u16 ring_len)
2097 return ring_len == 0 ||
2098 (ring_len >= ICE_MIN_NUM_DESC &&
2099 ring_len <= ICE_MAX_NUM_DESC &&
2100 !(ring_len % ICE_REQ_DESC_MULTIPLE));
2104 * ice_vc_config_rss_key
2105 * @vf: pointer to the VF info
2106 * @msg: pointer to the msg buffer
2108 * Configure the VF's RSS key
2110 static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
2112 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2113 struct virtchnl_rss_key *vrk =
2114 (struct virtchnl_rss_key *)msg;
2115 struct ice_pf *pf = vf->pf;
2116 struct ice_vsi *vsi;
2118 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2119 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2123 if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
2124 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2128 if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
2129 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2133 if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
2134 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2138 vsi = pf->vsi[vf->lan_vsi_idx];
2140 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2144 if (ice_set_rss(vsi, vrk->key, NULL, 0))
2145 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
2147 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
2152 * ice_vc_config_rss_lut
2153 * @vf: pointer to the VF info
2154 * @msg: pointer to the msg buffer
2156 * Configure the VF's RSS LUT
2158 static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
2160 struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
2161 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2162 struct ice_pf *pf = vf->pf;
2163 struct ice_vsi *vsi;
2165 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2166 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2170 if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
2171 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2175 if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
2176 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2180 if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
2181 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2185 vsi = pf->vsi[vf->lan_vsi_idx];
2187 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2191 if (ice_set_rss(vsi, NULL, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
2192 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
2194 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
2199 * ice_wait_on_vf_reset - poll to make sure a given VF is ready after reset
2200 * @vf: The VF being resseting
2202 * The max poll time is about ~800ms, which is about the maximum time it takes
2203 * for a VF to be reset and/or a VF driver to be removed.
2205 static void ice_wait_on_vf_reset(struct ice_vf *vf)
2209 for (i = 0; i < ICE_MAX_VF_RESET_TRIES; i++) {
2210 if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
2212 msleep(ICE_MAX_VF_RESET_SLEEP_MS);
2217 * ice_check_vf_ready_for_cfg - check if VF is ready to be configured/queried
2218 * @vf: VF to check if it's ready to be configured/queried
2220 * The purpose of this function is to make sure the VF is not in reset, not
2221 * disabled, and initialized so it can be configured and/or queried by a host
2224 static int ice_check_vf_ready_for_cfg(struct ice_vf *vf)
2228 ice_wait_on_vf_reset(vf);
2230 if (ice_is_vf_disabled(vf))
2234 if (ice_check_vf_init(pf, vf))
2241 * ice_set_vf_spoofchk
2242 * @netdev: network interface device structure
2243 * @vf_id: VF identifier
2244 * @ena: flag to enable or disable feature
2246 * Enable or disable VF spoof checking
2248 int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena)
2250 struct ice_netdev_priv *np = netdev_priv(netdev);
2251 struct ice_pf *pf = np->vsi->back;
2252 struct ice_vsi_ctx *ctx;
2253 struct ice_vsi *vf_vsi;
2254 enum ice_status status;
2259 dev = ice_pf_to_dev(pf);
2260 if (ice_validate_vf_id(pf, vf_id))
2263 vf = &pf->vf[vf_id];
2264 ret = ice_check_vf_ready_for_cfg(vf);
2268 vf_vsi = pf->vsi[vf->lan_vsi_idx];
2270 netdev_err(netdev, "VSI %d for VF %d is null\n",
2271 vf->lan_vsi_idx, vf->vf_id);
2275 if (vf_vsi->type != ICE_VSI_VF) {
2276 netdev_err(netdev, "Type %d of VSI %d for VF %d is no ICE_VSI_VF\n",
2277 vf_vsi->type, vf_vsi->vsi_num, vf->vf_id);
2281 if (ena == vf->spoofchk) {
2282 dev_dbg(dev, "VF spoofchk already %s\n", ena ? "ON" : "OFF");
2286 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2290 ctx->info.sec_flags = vf_vsi->info.sec_flags;
2291 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
2293 ctx->info.sec_flags |=
2294 ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
2295 (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
2296 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
2298 ctx->info.sec_flags &=
2299 ~(ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF |
2300 (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
2301 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S));
2304 status = ice_update_vsi(&pf->hw, vf_vsi->idx, ctx, NULL);
2306 dev_err(dev, "Failed to %sable spoofchk on VF %d VSI %d\n error %s\n",
2307 ena ? "en" : "dis", vf->vf_id, vf_vsi->vsi_num,
2308 ice_stat_str(status));
2313 /* only update spoofchk state and VSI context on success */
2314 vf_vsi->info.sec_flags = ctx->info.sec_flags;
2323 * ice_is_any_vf_in_promisc - check if any VF(s) are in promiscuous mode
2324 * @pf: PF structure for accessing VF(s)
2326 * Return false if no VF(s) are in unicast and/or multicast promiscuous mode,
2329 bool ice_is_any_vf_in_promisc(struct ice_pf *pf)
2333 ice_for_each_vf(pf, vf_idx) {
2334 struct ice_vf *vf = &pf->vf[vf_idx];
2336 /* found a VF that has promiscuous mode configured */
2337 if (test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
2338 test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
2346 * ice_vc_cfg_promiscuous_mode_msg
2347 * @vf: pointer to the VF info
2348 * @msg: pointer to the msg buffer
2350 * called from the VF to configure VF VSIs promiscuous mode
2352 static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
2354 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2355 bool rm_promisc, alluni = false, allmulti = false;
2356 struct virtchnl_promisc_info *info =
2357 (struct virtchnl_promisc_info *)msg;
2358 struct ice_pf *pf = vf->pf;
2359 struct ice_vsi *vsi;
2363 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2364 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2368 if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2369 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2373 vsi = pf->vsi[vf->lan_vsi_idx];
2375 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2379 dev = ice_pf_to_dev(pf);
2380 if (!test_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2381 dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2383 /* Leave v_ret alone, lie to the VF on purpose. */
2387 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2390 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2393 rm_promisc = !allmulti && !alluni;
2395 if (vsi->num_vlan || vf->port_vlan_info) {
2396 struct ice_vsi *pf_vsi = ice_get_main_vsi(pf);
2397 struct net_device *pf_netdev;
2400 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2404 pf_netdev = pf_vsi->netdev;
2406 ret = ice_set_vf_spoofchk(pf_netdev, vf->vf_id, rm_promisc);
2408 dev_err(dev, "Failed to update spoofchk to %s for VF %d VSI %d when setting promiscuous mode\n",
2409 rm_promisc ? "ON" : "OFF", vf->vf_id,
2411 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2414 ret = ice_cfg_vlan_pruning(vsi, true, !rm_promisc);
2416 dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
2417 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2422 if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
2423 bool set_dflt_vsi = !!(info->flags & FLAG_VF_UNICAST_PROMISC);
2425 if (set_dflt_vsi && !ice_is_dflt_vsi_in_use(pf->first_sw))
2426 /* only attempt to set the default forwarding VSI if
2427 * it's not currently set
2429 ret = ice_set_dflt_vsi(pf->first_sw, vsi);
2430 else if (!set_dflt_vsi &&
2431 ice_is_vsi_dflt_vsi(pf->first_sw, vsi))
2432 /* only attempt to free the default forwarding VSI if we
2435 ret = ice_clear_dflt_vsi(pf->first_sw);
2438 dev_err(dev, "%sable VF %d as the default VSI failed, error %d\n",
2439 set_dflt_vsi ? "en" : "dis", vf->vf_id, ret);
2440 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
2444 enum ice_status status;
2448 if (vf->port_vlan_info || vsi->num_vlan)
2449 promisc_m = ICE_UCAST_VLAN_PROMISC_BITS;
2451 promisc_m = ICE_UCAST_PROMISC_BITS;
2452 } else if (allmulti) {
2453 if (vf->port_vlan_info || vsi->num_vlan)
2454 promisc_m = ICE_MCAST_VLAN_PROMISC_BITS;
2456 promisc_m = ICE_MCAST_PROMISC_BITS;
2458 if (vf->port_vlan_info || vsi->num_vlan)
2459 promisc_m = ICE_UCAST_VLAN_PROMISC_BITS;
2461 promisc_m = ICE_UCAST_PROMISC_BITS;
2464 /* Configure multicast/unicast with or without VLAN promiscuous
2467 status = ice_vf_set_vsi_promisc(vf, vsi, promisc_m, rm_promisc);
2469 dev_err(dev, "%sable Tx/Rx filter promiscuous mode on VF-%d failed, error: %s\n",
2470 rm_promisc ? "dis" : "en", vf->vf_id,
2471 ice_stat_str(status));
2472 v_ret = ice_err_to_virt_err(status);
2475 dev_dbg(dev, "%sable Tx/Rx filter promiscuous mode on VF-%d succeeded\n",
2476 rm_promisc ? "dis" : "en", vf->vf_id);
2481 !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
2482 dev_info(dev, "VF %u successfully set multicast promiscuous mode\n", vf->vf_id);
2483 else if (!allmulti && test_and_clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
2484 dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n", vf->vf_id);
2486 if (alluni && !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
2487 dev_info(dev, "VF %u successfully set unicast promiscuous mode\n", vf->vf_id);
2488 else if (!alluni && test_and_clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
2489 dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n", vf->vf_id);
2492 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2497 * ice_vc_get_stats_msg
2498 * @vf: pointer to the VF info
2499 * @msg: pointer to the msg buffer
2501 * called from the VF to get VSI stats
2503 static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg)
2505 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2506 struct virtchnl_queue_select *vqs =
2507 (struct virtchnl_queue_select *)msg;
2508 struct ice_eth_stats stats = { 0 };
2509 struct ice_pf *pf = vf->pf;
2510 struct ice_vsi *vsi;
2512 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2513 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2517 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2518 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2522 vsi = pf->vsi[vf->lan_vsi_idx];
2524 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2528 ice_update_eth_stats(vsi);
2530 stats = vsi->eth_stats;
2533 /* send the response to the VF */
2534 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret,
2535 (u8 *)&stats, sizeof(stats));
2539 * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL
2540 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2542 * Return true on successful validation, else false
2544 static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2546 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2547 vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) ||
2548 vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
2555 * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
2556 * @vsi: VSI of the VF to configure
2557 * @q_idx: VF queue index used to determine the queue in the PF's space
2559 static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
2561 struct ice_hw *hw = &vsi->back->hw;
2562 u32 pfq = vsi->txq_map[q_idx];
2565 reg = rd32(hw, QINT_TQCTL(pfq));
2567 /* MSI-X index 0 in the VF's space is always for the OICR, which means
2568 * this is most likely a poll mode VF driver, so don't enable an
2569 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
2571 if (!(reg & QINT_TQCTL_MSIX_INDX_M))
2574 wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
2578 * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
2579 * @vsi: VSI of the VF to configure
2580 * @q_idx: VF queue index used to determine the queue in the PF's space
2582 static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
2584 struct ice_hw *hw = &vsi->back->hw;
2585 u32 pfq = vsi->rxq_map[q_idx];
2588 reg = rd32(hw, QINT_RQCTL(pfq));
2590 /* MSI-X index 0 in the VF's space is always for the OICR, which means
2591 * this is most likely a poll mode VF driver, so don't enable an
2592 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
2594 if (!(reg & QINT_RQCTL_MSIX_INDX_M))
2597 wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
2602 * @vf: pointer to the VF info
2603 * @msg: pointer to the msg buffer
2605 * called from the VF to enable all or specific queue(s)
2607 static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
2609 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2610 struct virtchnl_queue_select *vqs =
2611 (struct virtchnl_queue_select *)msg;
2612 struct ice_pf *pf = vf->pf;
2613 struct ice_vsi *vsi;
2614 unsigned long q_map;
2617 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2618 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2622 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2623 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2627 if (!ice_vc_validate_vqs_bitmaps(vqs)) {
2628 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2632 vsi = pf->vsi[vf->lan_vsi_idx];
2634 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2638 /* Enable only Rx rings, Tx rings were enabled by the FW when the
2639 * Tx queue group list was configured and the context bits were
2640 * programmed using ice_vsi_cfg_txqs
2642 q_map = vqs->rx_queues;
2643 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
2644 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
2645 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2649 /* Skip queue if enabled */
2650 if (test_bit(vf_q_id, vf->rxq_ena))
2653 if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) {
2654 dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n",
2655 vf_q_id, vsi->vsi_num);
2656 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2660 ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
2661 set_bit(vf_q_id, vf->rxq_ena);
2664 vsi = pf->vsi[vf->lan_vsi_idx];
2665 q_map = vqs->tx_queues;
2666 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
2667 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
2668 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2672 /* Skip queue if enabled */
2673 if (test_bit(vf_q_id, vf->txq_ena))
2676 ice_vf_ena_txq_interrupt(vsi, vf_q_id);
2677 set_bit(vf_q_id, vf->txq_ena);
2680 /* Set flag to indicate that queues are enabled */
2681 if (v_ret == VIRTCHNL_STATUS_SUCCESS)
2682 set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
2685 /* send the response to the VF */
2686 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
2692 * @vf: pointer to the VF info
2693 * @msg: pointer to the msg buffer
2695 * called from the VF to disable all or specific
2698 static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
2700 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2701 struct virtchnl_queue_select *vqs =
2702 (struct virtchnl_queue_select *)msg;
2703 struct ice_pf *pf = vf->pf;
2704 struct ice_vsi *vsi;
2705 unsigned long q_map;
2708 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
2709 !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
2710 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2714 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2715 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2719 if (!ice_vc_validate_vqs_bitmaps(vqs)) {
2720 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2724 vsi = pf->vsi[vf->lan_vsi_idx];
2726 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2730 if (vqs->tx_queues) {
2731 q_map = vqs->tx_queues;
2733 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
2734 struct ice_ring *ring = vsi->tx_rings[vf_q_id];
2735 struct ice_txq_meta txq_meta = { 0 };
2737 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
2738 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2742 /* Skip queue if not enabled */
2743 if (!test_bit(vf_q_id, vf->txq_ena))
2746 ice_fill_txq_meta(vsi, ring, &txq_meta);
2748 if (ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id,
2750 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
2751 vf_q_id, vsi->vsi_num);
2752 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2756 /* Clear enabled queues flag */
2757 clear_bit(vf_q_id, vf->txq_ena);
2761 q_map = vqs->rx_queues;
2762 /* speed up Rx queue disable by batching them if possible */
2764 bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) {
2765 if (ice_vsi_stop_all_rx_rings(vsi)) {
2766 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n",
2768 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2772 bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
2774 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
2775 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
2776 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2780 /* Skip queue if not enabled */
2781 if (!test_bit(vf_q_id, vf->rxq_ena))
2784 if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id,
2786 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n",
2787 vf_q_id, vsi->vsi_num);
2788 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2792 /* Clear enabled queues flag */
2793 clear_bit(vf_q_id, vf->rxq_ena);
2797 /* Clear enabled queues flag */
2798 if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf))
2799 clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
2802 /* send the response to the VF */
2803 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
2809 * @vf: pointer to the VF info
2810 * @vsi: the VSI being configured
2811 * @vector_id: vector ID
2812 * @map: vector map for mapping vectors to queues
2813 * @q_vector: structure for interrupt vector
2814 * configure the IRQ to queue map
2817 ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
2818 struct virtchnl_vector_map *map,
2819 struct ice_q_vector *q_vector)
2821 u16 vsi_q_id, vsi_q_id_idx;
2824 q_vector->num_ring_rx = 0;
2825 q_vector->num_ring_tx = 0;
2827 qmap = map->rxq_map;
2828 for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
2829 vsi_q_id = vsi_q_id_idx;
2831 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
2832 return VIRTCHNL_STATUS_ERR_PARAM;
2834 q_vector->num_ring_rx++;
2835 q_vector->rx.itr_idx = map->rxitr_idx;
2836 vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
2837 ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
2838 q_vector->rx.itr_idx);
2841 qmap = map->txq_map;
2842 for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
2843 vsi_q_id = vsi_q_id_idx;
2845 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
2846 return VIRTCHNL_STATUS_ERR_PARAM;
2848 q_vector->num_ring_tx++;
2849 q_vector->tx.itr_idx = map->txitr_idx;
2850 vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
2851 ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
2852 q_vector->tx.itr_idx);
2855 return VIRTCHNL_STATUS_SUCCESS;
2859 * ice_vc_cfg_irq_map_msg
2860 * @vf: pointer to the VF info
2861 * @msg: pointer to the msg buffer
2863 * called from the VF to configure the IRQ to queue map
2865 static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
2867 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2868 u16 num_q_vectors_mapped, vsi_id, vector_id;
2869 struct virtchnl_irq_map_info *irqmap_info;
2870 struct virtchnl_vector_map *map;
2871 struct ice_pf *pf = vf->pf;
2872 struct ice_vsi *vsi;
2875 irqmap_info = (struct virtchnl_irq_map_info *)msg;
2876 num_q_vectors_mapped = irqmap_info->num_vectors;
2878 /* Check to make sure number of VF vectors mapped is not greater than
2879 * number of VF vectors originally allocated, and check that
2880 * there is actually at least a single VF queue vector mapped
2882 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
2883 pf->num_msix_per_vf < num_q_vectors_mapped ||
2884 !num_q_vectors_mapped) {
2885 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2889 vsi = pf->vsi[vf->lan_vsi_idx];
2891 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2895 for (i = 0; i < num_q_vectors_mapped; i++) {
2896 struct ice_q_vector *q_vector;
2898 map = &irqmap_info->vecmap[i];
2900 vector_id = map->vector_id;
2901 vsi_id = map->vsi_id;
2902 /* vector_id is always 0-based for each VF, and can never be
2903 * larger than or equal to the max allowed interrupts per VF
2905 if (!(vector_id < pf->num_msix_per_vf) ||
2906 !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
2907 (!vector_id && (map->rxq_map || map->txq_map))) {
2908 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2912 /* No need to map VF miscellaneous or rogue vector */
2916 /* Subtract non queue vector from vector_id passed by VF
2917 * to get actual number of VSI queue vector array index
2919 q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
2921 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2925 /* lookout for the invalid queue index */
2926 v_ret = (enum virtchnl_status_code)
2927 ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
2933 /* send the response to the VF */
2934 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret,
2940 * @vf: pointer to the VF info
2941 * @msg: pointer to the msg buffer
2943 * called from the VF to configure the Rx/Tx queues
2945 static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
2947 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2948 struct virtchnl_vsi_queue_config_info *qci =
2949 (struct virtchnl_vsi_queue_config_info *)msg;
2950 struct virtchnl_queue_pair_info *qpi;
2951 u16 num_rxq = 0, num_txq = 0;
2952 struct ice_pf *pf = vf->pf;
2953 struct ice_vsi *vsi;
2956 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2957 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2961 if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2962 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2966 vsi = pf->vsi[vf->lan_vsi_idx];
2968 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2972 if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
2973 qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
2974 dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
2975 vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
2976 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2980 for (i = 0; i < qci->num_queue_pairs; i++) {
2981 qpi = &qci->qpair[i];
2982 if (qpi->txq.vsi_id != qci->vsi_id ||
2983 qpi->rxq.vsi_id != qci->vsi_id ||
2984 qpi->rxq.queue_id != qpi->txq.queue_id ||
2985 qpi->txq.headwb_enabled ||
2986 !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
2987 !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
2988 !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
2989 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2992 /* copy Tx queue info from VF into VSI */
2993 if (qpi->txq.ring_len > 0) {
2995 vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
2996 vsi->tx_rings[i]->count = qpi->txq.ring_len;
2999 /* copy Rx queue info from VF into VSI */
3000 if (qpi->rxq.ring_len > 0) {
3002 vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
3003 vsi->rx_rings[i]->count = qpi->rxq.ring_len;
3005 if (qpi->rxq.databuffer_size != 0 &&
3006 (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
3007 qpi->rxq.databuffer_size < 1024)) {
3008 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3011 vsi->rx_buf_len = qpi->rxq.databuffer_size;
3012 vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
3013 if (qpi->rxq.max_pkt_size >= (16 * 1024) ||
3014 qpi->rxq.max_pkt_size < 64) {
3015 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3020 vsi->max_frame = qpi->rxq.max_pkt_size;
3023 /* VF can request to configure less than allocated queues or default
3024 * allocated queues. So update the VSI with new number
3026 vsi->num_txq = num_txq;
3027 vsi->num_rxq = num_rxq;
3028 /* All queues of VF VSI are in TC 0 */
3029 vsi->tc_cfg.tc_info[0].qcount_tx = num_txq;
3030 vsi->tc_cfg.tc_info[0].qcount_rx = num_rxq;
3032 if (ice_vsi_cfg_lan_txqs(vsi) || ice_vsi_cfg_rxqs(vsi))
3033 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
3036 /* send the response to the VF */
3037 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, v_ret,
3043 * @vf: pointer to the VF info
3045 static bool ice_is_vf_trusted(struct ice_vf *vf)
3047 return test_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
3051 * ice_can_vf_change_mac
3052 * @vf: pointer to the VF info
3054 * Return true if the VF is allowed to change its MAC filters, false otherwise
3056 static bool ice_can_vf_change_mac(struct ice_vf *vf)
3058 /* If the VF MAC address has been set administratively (via the
3059 * ndo_set_vf_mac command), then deny permission to the VF to
3060 * add/delete unicast MAC addresses, unless the VF is trusted
3062 if (vf->pf_set_mac && !ice_is_vf_trusted(vf))
3069 * ice_vc_add_mac_addr - attempt to add the MAC address passed in
3070 * @vf: pointer to the VF info
3071 * @vsi: pointer to the VF's VSI
3072 * @mac_addr: MAC address to add
3075 ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
3077 struct device *dev = ice_pf_to_dev(vf->pf);
3078 enum ice_status status;
3080 /* default unicast MAC already added */
3081 if (ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
3084 if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
3085 dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
3089 status = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
3090 if (status == ICE_ERR_ALREADY_EXISTS) {
3091 dev_err(dev, "MAC %pM already exists for VF %d\n", mac_addr,
3094 } else if (status) {
3095 dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %s\n",
3096 mac_addr, vf->vf_id, ice_stat_str(status));
3100 /* Set the default LAN address to the latest unicast MAC address added
3101 * by the VF. The default LAN address is reported by the PF via
3102 * ndo_get_vf_config.
3104 if (is_unicast_ether_addr(mac_addr))
3105 ether_addr_copy(vf->dflt_lan_addr.addr, mac_addr);
3113 * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
3114 * @vf: pointer to the VF info
3115 * @vsi: pointer to the VF's VSI
3116 * @mac_addr: MAC address to delete
3119 ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
3121 struct device *dev = ice_pf_to_dev(vf->pf);
3122 enum ice_status status;
3124 if (!ice_can_vf_change_mac(vf) &&
3125 ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
3128 status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
3129 if (status == ICE_ERR_DOES_NOT_EXIST) {
3130 dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
3133 } else if (status) {
3134 dev_err(dev, "Failed to delete MAC %pM for VF %d, error %s\n",
3135 mac_addr, vf->vf_id, ice_stat_str(status));
3139 if (ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
3140 eth_zero_addr(vf->dflt_lan_addr.addr);
3148 * ice_vc_handle_mac_addr_msg
3149 * @vf: pointer to the VF info
3150 * @msg: pointer to the msg buffer
3151 * @set: true if MAC filters are being set, false otherwise
3153 * add guest MAC address filter
3156 ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
3158 int (*ice_vc_cfg_mac)
3159 (struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr);
3160 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3161 struct virtchnl_ether_addr_list *al =
3162 (struct virtchnl_ether_addr_list *)msg;
3163 struct ice_pf *pf = vf->pf;
3164 enum virtchnl_ops vc_op;
3165 struct ice_vsi *vsi;
3169 vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
3170 ice_vc_cfg_mac = ice_vc_add_mac_addr;
3172 vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
3173 ice_vc_cfg_mac = ice_vc_del_mac_addr;
3176 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
3177 !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3178 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3179 goto handle_mac_exit;
3182 /* If this VF is not privileged, then we can't add more than a
3183 * limited number of addresses. Check to make sure that the
3184 * additions do not push us over the limit.
3186 if (set && !ice_is_vf_trusted(vf) &&
3187 (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
3188 dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n",
3190 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3191 goto handle_mac_exit;
3194 vsi = pf->vsi[vf->lan_vsi_idx];
3196 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3197 goto handle_mac_exit;
3200 for (i = 0; i < al->num_elements; i++) {
3201 u8 *mac_addr = al->list[i].addr;
3204 if (is_broadcast_ether_addr(mac_addr) ||
3205 is_zero_ether_addr(mac_addr))
3208 result = ice_vc_cfg_mac(vf, vsi, mac_addr);
3209 if (result == -EEXIST || result == -ENOENT) {
3211 } else if (result) {
3212 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
3213 goto handle_mac_exit;
3218 /* send the response to the VF */
3219 return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
3223 * ice_vc_add_mac_addr_msg
3224 * @vf: pointer to the VF info
3225 * @msg: pointer to the msg buffer
3227 * add guest MAC address filter
3229 static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg)
3231 return ice_vc_handle_mac_addr_msg(vf, msg, true);
3235 * ice_vc_del_mac_addr_msg
3236 * @vf: pointer to the VF info
3237 * @msg: pointer to the msg buffer
3239 * remove guest MAC address filter
3241 static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg)
3243 return ice_vc_handle_mac_addr_msg(vf, msg, false);
3247 * ice_vc_request_qs_msg
3248 * @vf: pointer to the VF info
3249 * @msg: pointer to the msg buffer
3251 * VFs get a default number of queues but can use this message to request a
3252 * different number. If the request is successful, PF will reset the VF and
3253 * return 0. If unsuccessful, PF will send message informing VF of number of
3254 * available queue pairs via virtchnl message response to VF.
3256 static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
3258 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3259 struct virtchnl_vf_res_request *vfres =
3260 (struct virtchnl_vf_res_request *)msg;
3261 u16 req_queues = vfres->num_queue_pairs;
3262 struct ice_pf *pf = vf->pf;
3263 u16 max_allowed_vf_queues;
3264 u16 tx_rx_queue_left;
3268 dev = ice_pf_to_dev(pf);
3269 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3270 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3274 cur_queues = vf->num_vf_qs;
3275 tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
3276 ice_get_avail_rxq_count(pf));
3277 max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
3279 dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
3281 } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
3282 dev_err(dev, "VF %d tried to request more than %d queues.\n",
3283 vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
3284 vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
3285 } else if (req_queues > cur_queues &&
3286 req_queues - cur_queues > tx_rx_queue_left) {
3287 dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
3288 vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
3289 vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
3290 ICE_MAX_RSS_QS_PER_VF);
3292 /* request is successful, then reset VF */
3293 vf->num_req_qs = req_queues;
3294 ice_vc_reset_vf(vf);
3295 dev_info(dev, "VF %d granted request of %u queues.\n",
3296 vf->vf_id, req_queues);
3301 /* send the response to the VF */
3302 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES,
3303 v_ret, (u8 *)vfres, sizeof(*vfres));
3307 * ice_set_vf_port_vlan
3308 * @netdev: network interface device structure
3309 * @vf_id: VF identifier
3310 * @vlan_id: VLAN ID being set
3311 * @qos: priority setting
3312 * @vlan_proto: VLAN protocol
3314 * program VF Port VLAN ID and/or QoS
3317 ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
3320 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3326 dev = ice_pf_to_dev(pf);
3327 if (ice_validate_vf_id(pf, vf_id))
3330 if (vlan_id >= VLAN_N_VID || qos > 7) {
3331 dev_err(dev, "Invalid Port VLAN parameters for VF %d, ID %d, QoS %d\n",
3332 vf_id, vlan_id, qos);
3336 if (vlan_proto != htons(ETH_P_8021Q)) {
3337 dev_err(dev, "VF VLAN protocol is not supported\n");
3338 return -EPROTONOSUPPORT;
3341 vf = &pf->vf[vf_id];
3342 ret = ice_check_vf_ready_for_cfg(vf);
3346 vlanprio = vlan_id | (qos << VLAN_PRIO_SHIFT);
3348 if (vf->port_vlan_info == vlanprio) {
3349 /* duplicate request, so just return success */
3350 dev_dbg(dev, "Duplicate pvid %d request\n", vlanprio);
3354 vf->port_vlan_info = vlanprio;
3356 if (vf->port_vlan_info)
3357 dev_info(dev, "Setting VLAN %d, QoS 0x%x on VF %d\n",
3358 vlan_id, qos, vf_id);
3360 dev_info(dev, "Clearing port VLAN on VF %d\n", vf_id);
3362 ice_vc_reset_vf(vf);
3368 * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
3369 * @caps: VF driver negotiated capabilities
3371 * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
3373 static bool ice_vf_vlan_offload_ena(u32 caps)
3375 return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
3379 * ice_vc_process_vlan_msg
3380 * @vf: pointer to the VF info
3381 * @msg: pointer to the msg buffer
3382 * @add_v: Add VLAN if true, otherwise delete VLAN
3384 * Process virtchnl op to add or remove programmed guest VLAN ID
3386 static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
3388 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3389 struct virtchnl_vlan_filter_list *vfl =
3390 (struct virtchnl_vlan_filter_list *)msg;
3391 struct ice_pf *pf = vf->pf;
3392 bool vlan_promisc = false;
3393 struct ice_vsi *vsi;
3400 dev = ice_pf_to_dev(pf);
3401 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3402 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3406 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
3407 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3411 if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3412 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3416 for (i = 0; i < vfl->num_elements; i++) {
3417 if (vfl->vlan_id[i] >= VLAN_N_VID) {
3418 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3419 dev_err(dev, "invalid VF VLAN id %d\n",
3426 vsi = pf->vsi[vf->lan_vsi_idx];
3428 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3432 if (add_v && !ice_is_vf_trusted(vf) &&
3433 vsi->num_vlan >= ICE_MAX_VLAN_PER_VF) {
3434 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
3436 /* There is no need to let VF know about being not trusted,
3437 * so we can just return success message here
3442 if (vsi->info.pvid) {
3443 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3447 if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
3448 test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
3449 test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags))
3450 vlan_promisc = true;
3453 for (i = 0; i < vfl->num_elements; i++) {
3454 u16 vid = vfl->vlan_id[i];
3456 if (!ice_is_vf_trusted(vf) &&
3457 vsi->num_vlan >= ICE_MAX_VLAN_PER_VF) {
3458 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
3460 /* There is no need to let VF know about being
3461 * not trusted, so we can just return success
3462 * message here as well.
3467 /* we add VLAN 0 by default for each VF so we can enable
3468 * Tx VLAN anti-spoof without triggering MDD events so
3469 * we don't need to add it again here
3474 status = ice_vsi_add_vlan(vsi, vid, ICE_FWD_TO_VSI);
3476 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3480 /* Enable VLAN pruning when non-zero VLAN is added */
3481 if (!vlan_promisc && vid &&
3482 !ice_vsi_is_vlan_pruning_ena(vsi)) {
3483 status = ice_cfg_vlan_pruning(vsi, true, false);
3485 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3486 dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
3490 } else if (vlan_promisc) {
3491 /* Enable Ucast/Mcast VLAN promiscuous mode */
3492 promisc_m = ICE_PROMISC_VLAN_TX |
3493 ICE_PROMISC_VLAN_RX;
3495 status = ice_set_vsi_promisc(hw, vsi->idx,
3498 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3499 dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
3505 /* In case of non_trusted VF, number of VLAN elements passed
3506 * to PF for removal might be greater than number of VLANs
3507 * filter programmed for that VF - So, use actual number of
3508 * VLANS added earlier with add VLAN opcode. In order to avoid
3509 * removing VLAN that doesn't exist, which result to sending
3510 * erroneous failed message back to the VF
3514 num_vf_vlan = vsi->num_vlan;
3515 for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
3516 u16 vid = vfl->vlan_id[i];
3518 /* we add VLAN 0 by default for each VF so we can enable
3519 * Tx VLAN anti-spoof without triggering MDD events so
3520 * we don't want a VIRTCHNL request to remove it
3525 /* Make sure ice_vsi_kill_vlan is successful before
3526 * updating VLAN information
3528 status = ice_vsi_kill_vlan(vsi, vid);
3530 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3534 /* Disable VLAN pruning when only VLAN 0 is left */
3535 if (vsi->num_vlan == 1 &&
3536 ice_vsi_is_vlan_pruning_ena(vsi))
3537 ice_cfg_vlan_pruning(vsi, false, false);
3539 /* Disable Unicast/Multicast VLAN promiscuous mode */
3541 promisc_m = ICE_PROMISC_VLAN_TX |
3542 ICE_PROMISC_VLAN_RX;
3544 ice_clear_vsi_promisc(hw, vsi->idx,
3551 /* send the response to the VF */
3553 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
3556 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret,
3561 * ice_vc_add_vlan_msg
3562 * @vf: pointer to the VF info
3563 * @msg: pointer to the msg buffer
3565 * Add and program guest VLAN ID
3567 static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg)
3569 return ice_vc_process_vlan_msg(vf, msg, true);
3573 * ice_vc_remove_vlan_msg
3574 * @vf: pointer to the VF info
3575 * @msg: pointer to the msg buffer
3577 * remove programmed guest VLAN ID
3579 static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg)
3581 return ice_vc_process_vlan_msg(vf, msg, false);
3585 * ice_vc_ena_vlan_stripping
3586 * @vf: pointer to the VF info
3588 * Enable VLAN header stripping for a given VF
3590 static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
3592 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3593 struct ice_pf *pf = vf->pf;
3594 struct ice_vsi *vsi;
3596 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3597 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3601 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
3602 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3606 vsi = pf->vsi[vf->lan_vsi_idx];
3607 if (ice_vsi_manage_vlan_stripping(vsi, true))
3608 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3611 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3616 * ice_vc_dis_vlan_stripping
3617 * @vf: pointer to the VF info
3619 * Disable VLAN header stripping for a given VF
3621 static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
3623 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3624 struct ice_pf *pf = vf->pf;
3625 struct ice_vsi *vsi;
3627 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3628 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3632 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
3633 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3637 vsi = pf->vsi[vf->lan_vsi_idx];
3639 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3643 if (ice_vsi_manage_vlan_stripping(vsi, false))
3644 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3647 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3652 * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
3653 * @vf: VF to enable/disable VLAN stripping for on initialization
3655 * If the VIRTCHNL_VF_OFFLOAD_VLAN flag is set enable VLAN stripping, else if
3656 * the flag is cleared then we want to disable stripping. For example, the flag
3657 * will be cleared when port VLANs are configured by the administrator before
3658 * passing the VF to the guest or if the AVF driver doesn't support VLAN
3661 static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
3663 struct ice_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
3668 /* don't modify stripping if port VLAN is configured */
3672 if (ice_vf_vlan_offload_ena(vf->driver_caps))
3673 return ice_vsi_manage_vlan_stripping(vsi, true);
3675 return ice_vsi_manage_vlan_stripping(vsi, false);
3679 * ice_vc_process_vf_msg - Process request from VF
3680 * @pf: pointer to the PF structure
3681 * @event: pointer to the AQ event
3683 * called from the common asq/arq handler to
3684 * process request from VF
3686 void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
3688 u32 v_opcode = le32_to_cpu(event->desc.cookie_high);
3689 s16 vf_id = le16_to_cpu(event->desc.retval);
3690 u16 msglen = event->msg_len;
3691 u8 *msg = event->msg_buf;
3692 struct ice_vf *vf = NULL;
3696 dev = ice_pf_to_dev(pf);
3697 if (ice_validate_vf_id(pf, vf_id)) {
3702 vf = &pf->vf[vf_id];
3704 /* Check if VF is disabled. */
3705 if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
3710 /* Perform basic checks on the msg */
3711 err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3713 if (err == VIRTCHNL_STATUS_ERR_PARAM)
3721 ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
3723 dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
3724 vf_id, v_opcode, msglen, err);
3729 case VIRTCHNL_OP_VERSION:
3730 err = ice_vc_get_ver_msg(vf, msg);
3732 case VIRTCHNL_OP_GET_VF_RESOURCES:
3733 err = ice_vc_get_vf_res_msg(vf, msg);
3734 if (ice_vf_init_vlan_stripping(vf))
3735 dev_err(dev, "Failed to initialize VLAN stripping for VF %d\n",
3737 ice_vc_notify_vf_link_state(vf);
3739 case VIRTCHNL_OP_RESET_VF:
3740 ice_vc_reset_vf_msg(vf);
3742 case VIRTCHNL_OP_ADD_ETH_ADDR:
3743 err = ice_vc_add_mac_addr_msg(vf, msg);
3745 case VIRTCHNL_OP_DEL_ETH_ADDR:
3746 err = ice_vc_del_mac_addr_msg(vf, msg);
3748 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3749 err = ice_vc_cfg_qs_msg(vf, msg);
3751 case VIRTCHNL_OP_ENABLE_QUEUES:
3752 err = ice_vc_ena_qs_msg(vf, msg);
3753 ice_vc_notify_vf_link_state(vf);
3755 case VIRTCHNL_OP_DISABLE_QUEUES:
3756 err = ice_vc_dis_qs_msg(vf, msg);
3758 case VIRTCHNL_OP_REQUEST_QUEUES:
3759 err = ice_vc_request_qs_msg(vf, msg);
3761 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3762 err = ice_vc_cfg_irq_map_msg(vf, msg);
3764 case VIRTCHNL_OP_CONFIG_RSS_KEY:
3765 err = ice_vc_config_rss_key(vf, msg);
3767 case VIRTCHNL_OP_CONFIG_RSS_LUT:
3768 err = ice_vc_config_rss_lut(vf, msg);
3770 case VIRTCHNL_OP_GET_STATS:
3771 err = ice_vc_get_stats_msg(vf, msg);
3773 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3774 err = ice_vc_cfg_promiscuous_mode_msg(vf, msg);
3776 case VIRTCHNL_OP_ADD_VLAN:
3777 err = ice_vc_add_vlan_msg(vf, msg);
3779 case VIRTCHNL_OP_DEL_VLAN:
3780 err = ice_vc_remove_vlan_msg(vf, msg);
3782 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3783 err = ice_vc_ena_vlan_stripping(vf);
3785 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3786 err = ice_vc_dis_vlan_stripping(vf);
3788 case VIRTCHNL_OP_UNKNOWN:
3790 dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
3792 err = ice_vc_send_msg_to_vf(vf, v_opcode,
3793 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3798 /* Helper function cares less about error return values here
3799 * as it is busy with pending work.
3801 dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
3802 vf_id, v_opcode, err);
3808 * @netdev: network interface device structure
3809 * @vf_id: VF identifier
3810 * @ivi: VF configuration structure
3812 * return VF configuration
3815 ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi)
3817 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3820 if (ice_validate_vf_id(pf, vf_id))
3823 vf = &pf->vf[vf_id];
3825 if (ice_check_vf_init(pf, vf))
3829 ether_addr_copy(ivi->mac, vf->dflt_lan_addr.addr);
3831 /* VF configuration for VLAN and applicable QoS */
3832 ivi->vlan = vf->port_vlan_info & VLAN_VID_MASK;
3833 ivi->qos = (vf->port_vlan_info & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
3835 ivi->trusted = vf->trusted;
3836 ivi->spoofchk = vf->spoofchk;
3837 if (!vf->link_forced)
3838 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
3839 else if (vf->link_up)
3840 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
3842 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
3843 ivi->max_tx_rate = vf->tx_rate;
3844 ivi->min_tx_rate = 0;
3849 * ice_unicast_mac_exists - check if the unicast MAC exists on the PF's switch
3850 * @pf: PF used to reference the switch's rules
3851 * @umac: unicast MAC to compare against existing switch rules
3853 * Return true on the first/any match, else return false
3855 static bool ice_unicast_mac_exists(struct ice_pf *pf, u8 *umac)
3857 struct ice_sw_recipe *mac_recipe_list =
3858 &pf->hw.switch_info->recp_list[ICE_SW_LKUP_MAC];
3859 struct ice_fltr_mgmt_list_entry *list_itr;
3860 struct list_head *rule_head;
3861 struct mutex *rule_lock; /* protect MAC filter list access */
3863 rule_head = &mac_recipe_list->filt_rules;
3864 rule_lock = &mac_recipe_list->filt_rule_lock;
3866 mutex_lock(rule_lock);
3867 list_for_each_entry(list_itr, rule_head, list_entry) {
3868 u8 *existing_mac = &list_itr->fltr_info.l_data.mac.mac_addr[0];
3870 if (ether_addr_equal(existing_mac, umac)) {
3871 mutex_unlock(rule_lock);
3876 mutex_unlock(rule_lock);
3883 * @netdev: network interface device structure
3884 * @vf_id: VF identifier
3887 * program VF MAC address
3889 int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
3891 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3895 if (ice_validate_vf_id(pf, vf_id))
3898 if (is_multicast_ether_addr(mac)) {
3899 netdev_err(netdev, "%pM not a valid unicast address\n", mac);
3903 vf = &pf->vf[vf_id];
3904 /* nothing left to do, unicast MAC already set */
3905 if (ether_addr_equal(vf->dflt_lan_addr.addr, mac))
3908 ret = ice_check_vf_ready_for_cfg(vf);
3912 if (ice_unicast_mac_exists(pf, mac)) {
3913 netdev_err(netdev, "Unicast MAC %pM already exists on this PF. Preventing setting VF %u unicast MAC address to %pM\n",
3918 /* VF is notified of its new MAC via the PF's response to the
3919 * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset
3921 ether_addr_copy(vf->dflt_lan_addr.addr, mac);
3922 if (is_zero_ether_addr(mac)) {
3923 /* VF will send VIRTCHNL_OP_ADD_ETH_ADDR message with its MAC */
3924 vf->pf_set_mac = false;
3925 netdev_info(netdev, "Removing MAC on VF %d. VF driver will be reinitialized\n",
3928 /* PF will add MAC rule for the VF */
3929 vf->pf_set_mac = true;
3930 netdev_info(netdev, "Setting MAC %pM on VF %d. VF driver will be reinitialized\n",
3934 ice_vc_reset_vf(vf);
3940 * @netdev: network interface device structure
3941 * @vf_id: VF identifier
3942 * @trusted: Boolean value to enable/disable trusted VF
3944 * Enable or disable a given VF as trusted
3946 int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted)
3948 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3952 if (ice_validate_vf_id(pf, vf_id))
3955 vf = &pf->vf[vf_id];
3956 ret = ice_check_vf_ready_for_cfg(vf);
3960 /* Check if already trusted */
3961 if (trusted == vf->trusted)
3964 vf->trusted = trusted;
3965 ice_vc_reset_vf(vf);
3966 dev_info(ice_pf_to_dev(pf), "VF %u is now %strusted\n",
3967 vf_id, trusted ? "" : "un");
3973 * ice_set_vf_link_state
3974 * @netdev: network interface device structure
3975 * @vf_id: VF identifier
3976 * @link_state: required link state
3978 * Set VF's link state, irrespective of physical link state status
3980 int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state)
3982 struct ice_pf *pf = ice_netdev_to_pf(netdev);
3986 if (ice_validate_vf_id(pf, vf_id))
3989 vf = &pf->vf[vf_id];
3990 ret = ice_check_vf_ready_for_cfg(vf);
3994 switch (link_state) {
3995 case IFLA_VF_LINK_STATE_AUTO:
3996 vf->link_forced = false;
3998 case IFLA_VF_LINK_STATE_ENABLE:
3999 vf->link_forced = true;
4002 case IFLA_VF_LINK_STATE_DISABLE:
4003 vf->link_forced = true;
4004 vf->link_up = false;
4010 ice_vc_notify_vf_link_state(vf);
4016 * ice_get_vf_stats - populate some stats for the VF
4017 * @netdev: the netdev of the PF
4018 * @vf_id: the host OS identifier (0-255)
4019 * @vf_stats: pointer to the OS memory to be initialized
4021 int ice_get_vf_stats(struct net_device *netdev, int vf_id,
4022 struct ifla_vf_stats *vf_stats)
4024 struct ice_pf *pf = ice_netdev_to_pf(netdev);
4025 struct ice_eth_stats *stats;
4026 struct ice_vsi *vsi;
4030 if (ice_validate_vf_id(pf, vf_id))
4033 vf = &pf->vf[vf_id];
4034 ret = ice_check_vf_ready_for_cfg(vf);
4038 vsi = pf->vsi[vf->lan_vsi_idx];
4042 ice_update_eth_stats(vsi);
4043 stats = &vsi->eth_stats;
4045 memset(vf_stats, 0, sizeof(*vf_stats));
4047 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4048 stats->rx_multicast;
4049 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4050 stats->tx_multicast;
4051 vf_stats->rx_bytes = stats->rx_bytes;
4052 vf_stats->tx_bytes = stats->tx_bytes;
4053 vf_stats->broadcast = stats->rx_broadcast;
4054 vf_stats->multicast = stats->rx_multicast;
4055 vf_stats->rx_dropped = stats->rx_discards;
4056 vf_stats->tx_dropped = stats->tx_discards;
4062 * ice_print_vf_rx_mdd_event - print VF Rx malicious driver detect event
4063 * @vf: pointer to the VF structure
4065 void ice_print_vf_rx_mdd_event(struct ice_vf *vf)
4067 struct ice_pf *pf = vf->pf;
4070 dev = ice_pf_to_dev(pf);
4072 dev_info(dev, "%d Rx Malicious Driver Detection events detected on PF %d VF %d MAC %pM. mdd-auto-reset-vfs=%s\n",
4073 vf->mdd_rx_events.count, pf->hw.pf_id, vf->vf_id,
4074 vf->dflt_lan_addr.addr,
4075 test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)
4080 * ice_print_vfs_mdd_event - print VFs malicious driver detect event
4081 * @pf: pointer to the PF structure
4083 * Called from ice_handle_mdd_event to rate limit and print VFs MDD events.
4085 void ice_print_vfs_mdd_events(struct ice_pf *pf)
4087 struct device *dev = ice_pf_to_dev(pf);
4088 struct ice_hw *hw = &pf->hw;
4091 /* check that there are pending MDD events to print */
4092 if (!test_and_clear_bit(__ICE_MDD_VF_PRINT_PENDING, pf->state))
4095 /* VF MDD event logs are rate limited to one second intervals */
4096 if (time_is_after_jiffies(pf->last_printed_mdd_jiffies + HZ * 1))
4099 pf->last_printed_mdd_jiffies = jiffies;
4101 ice_for_each_vf(pf, i) {
4102 struct ice_vf *vf = &pf->vf[i];
4104 /* only print Rx MDD event message if there are new events */
4105 if (vf->mdd_rx_events.count != vf->mdd_rx_events.last_printed) {
4106 vf->mdd_rx_events.last_printed =
4107 vf->mdd_rx_events.count;
4108 ice_print_vf_rx_mdd_event(vf);
4111 /* only print Tx MDD event message if there are new events */
4112 if (vf->mdd_tx_events.count != vf->mdd_tx_events.last_printed) {
4113 vf->mdd_tx_events.last_printed =
4114 vf->mdd_tx_events.count;
4116 dev_info(dev, "%d Tx Malicious Driver Detection events detected on PF %d VF %d MAC %pM.\n",
4117 vf->mdd_tx_events.count, hw->pf_id, i,
4118 vf->dflt_lan_addr.addr);
4124 * ice_restore_all_vfs_msi_state - restore VF MSI state after PF FLR
4125 * @pdev: pointer to a pci_dev structure
4127 * Called when recovering from a PF FLR to restore interrupt capability to
4130 void ice_restore_all_vfs_msi_state(struct pci_dev *pdev)
4132 struct pci_dev *vfdev;
4136 if (!pci_num_vf(pdev))
4139 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4141 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID,
4143 vfdev = pci_get_device(pdev->vendor, vf_id, NULL);
4145 if (vfdev->is_virtfn && vfdev->physfn == pdev)
4146 pci_restore_msi_state(vfdev);
4147 vfdev = pci_get_device(pdev->vendor, vf_id,