// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2018, Intel Corporation. */ #include "ice.h" #include "ice_lib.h" /** * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF * @pf: pointer to the PF structure * @v_opcode: operation code * @v_retval: return value * @msg: pointer to the msg buffer * @msglen: msg length */ static void ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode, enum ice_status v_retval, u8 *msg, u16 msglen) { struct ice_hw *hw = &pf->hw; struct ice_vf *vf = pf->vf; int i; for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { /* Not all vfs are enabled so skip the ones that are not */ if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) && !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) continue; /* Ignore return value on purpose - a given VF may fail, but * we need to keep going and send to all of them */ ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg, msglen, NULL); } } /** * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event * @vf: pointer to the VF structure * @pfe: pointer to the virtchnl_pf_event to set link speed/status for * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_* * @link_up: whether or not to set the link up/down */ static void ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe, int ice_link_speed, bool link_up) { if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { pfe->event_data.link_event_adv.link_status = link_up; /* Speed in Mbps */ pfe->event_data.link_event_adv.link_speed = ice_conv_link_speed_to_virtchnl(true, ice_link_speed); } else { pfe->event_data.link_event.link_status = link_up; /* Legacy method for virtchnl link speeds */ pfe->event_data.link_event.link_speed = (enum virtchnl_link_speed) ice_conv_link_speed_to_virtchnl(false, ice_link_speed); } } /** * ice_set_pfe_link_forced - Force the virtchnl_pf_event link speed/status * @vf: pointer to the VF structure * @pfe: pointer to the virtchnl_pf_event to set link speed/status for * @link_up: whether or not to set the link up/down */ static void ice_set_pfe_link_forced(struct ice_vf *vf, struct virtchnl_pf_event *pfe, bool link_up) { u16 link_speed; if (link_up) link_speed = ICE_AQ_LINK_SPEED_40GB; else link_speed = ICE_AQ_LINK_SPEED_UNKNOWN; ice_set_pfe_link(vf, pfe, link_speed, link_up); } /** * ice_vc_notify_vf_link_state - Inform a VF of link status * @vf: pointer to the VF structure * * send a link status message to a single VF */ static void ice_vc_notify_vf_link_state(struct ice_vf *vf) { struct virtchnl_pf_event pfe = { 0 }; struct ice_link_status *ls; struct ice_pf *pf = vf->pf; struct ice_hw *hw; hw = &pf->hw; ls = &hw->port_info->phy.link_info; pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = PF_EVENT_SEVERITY_INFO; if (vf->link_forced) ice_set_pfe_link_forced(vf, &pfe, vf->link_up); else ice_set_pfe_link(vf, &pfe, ls->link_speed, ls->link_info & ICE_AQ_LINK_UP); ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(pfe), NULL); } /** * ice_get_vf_vector - get VF interrupt vector register offset * @vf_msix: number of MSIx vector per VF on a PF * @vf_id: VF identifier * @i: index of MSIx vector */ static u32 ice_get_vf_vector(int vf_msix, int vf_id, int i) { return ((i == 0) ? VFINT_DYN_CTLN(vf_id) : VFINT_DYN_CTLN(((vf_msix - 1) * (vf_id)) + (i - 1))); } /** * ice_free_vf_res - Free a VF's resources * @vf: pointer to the VF info */ static void ice_free_vf_res(struct ice_vf *vf) { struct ice_pf *pf = vf->pf; int i, pf_vf_msix; /* First, disable VF's configuration API to prevent OS from * accessing the VF's VSI after it's freed or invalidated. */ clear_bit(ICE_VF_STATE_INIT, vf->vf_states); /* free vsi & disconnect it from the parent uplink */ if (vf->lan_vsi_idx) { ice_vsi_release(pf->vsi[vf->lan_vsi_idx]); vf->lan_vsi_idx = 0; vf->lan_vsi_num = 0; vf->num_mac = 0; } pf_vf_msix = pf->num_vf_msix; /* Disable interrupts so that VF starts in a known state */ for (i = 0; i < pf_vf_msix; i++) { u32 reg_idx; reg_idx = ice_get_vf_vector(pf_vf_msix, vf->vf_id, i); wr32(&pf->hw, reg_idx, VFINT_DYN_CTLN_CLEARPBA_M); ice_flush(&pf->hw); } /* reset some of the state variables keeping track of the resources */ clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states); clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states); } /***********************enable_vf routines*****************************/ /** * ice_dis_vf_mappings * @vf: pointer to the VF structure */ static void ice_dis_vf_mappings(struct ice_vf *vf) { struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; int first, last, v; struct ice_hw *hw; hw = &pf->hw; vsi = pf->vsi[vf->lan_vsi_idx]; wr32(hw, VPINT_ALLOC(vf->vf_id), 0); first = vf->first_vector_idx; last = first + pf->num_vf_msix - 1; for (v = first; v <= last; v++) { u32 reg; reg = (((1 << GLINT_VECT2FUNC_IS_PF_S) & GLINT_VECT2FUNC_IS_PF_M) | ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) & GLINT_VECT2FUNC_PF_NUM_M)); wr32(hw, GLINT_VECT2FUNC(v), reg); } if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) wr32(hw, VPLAN_TX_QBASE(vf->vf_id), 0); else dev_err(&pf->pdev->dev, "Scattered mode for VF Tx queues is not yet implemented\n"); if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) wr32(hw, VPLAN_RX_QBASE(vf->vf_id), 0); else dev_err(&pf->pdev->dev, "Scattered mode for VF Rx queues is not yet implemented\n"); } /** * ice_free_vfs - Free all VFs * @pf: pointer to the PF structure */ void ice_free_vfs(struct ice_pf *pf) { struct ice_hw *hw = &pf->hw; int tmp, i; if (!pf->vf) return; while (test_and_set_bit(__ICE_VF_DIS, pf->state)) usleep_range(1000, 2000); /* Avoid wait time by stopping all VFs at the same time */ for (i = 0; i < pf->num_alloc_vfs; i++) { if (!test_bit(ICE_VF_STATE_ENA, pf->vf[i].vf_states)) continue; /* stop rings without wait time */ ice_vsi_stop_tx_rings(pf->vsi[pf->vf[i].lan_vsi_idx], ICE_NO_RESET, i); ice_vsi_stop_rx_rings(pf->vsi[pf->vf[i].lan_vsi_idx]); clear_bit(ICE_VF_STATE_ENA, pf->vf[i].vf_states); } /* Disable IOV before freeing resources. This lets any VF drivers * running in the host get themselves cleaned up before we yank * the carpet out from underneath their feet. */ if (!pci_vfs_assigned(pf->pdev)) pci_disable_sriov(pf->pdev); else dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); tmp = pf->num_alloc_vfs; pf->num_vf_qps = 0; pf->num_alloc_vfs = 0; for (i = 0; i < tmp; i++) { if (test_bit(ICE_VF_STATE_INIT, pf->vf[i].vf_states)) { /* disable VF qp mappings */ ice_dis_vf_mappings(&pf->vf[i]); /* Set this state so that assigned VF vectors can be * reclaimed by PF for reuse in ice_vsi_release(). No * need to clear this bit since pf->vf array is being * freed anyways after this for loop */ set_bit(ICE_VF_STATE_CFG_INTR, pf->vf[i].vf_states); ice_free_vf_res(&pf->vf[i]); } } devm_kfree(&pf->pdev->dev, pf->vf); pf->vf = NULL; /* This check is for when the driver is unloaded while VFs are * assigned. Setting the number of VFs to 0 through sysfs is caught * before this function ever gets called. */ if (!pci_vfs_assigned(pf->pdev)) { int vf_id; /* Acknowledge VFLR for all VFs. Without this, VFs will fail to * work correctly when SR-IOV gets re-enabled. */ for (vf_id = 0; vf_id < tmp; vf_id++) { u32 reg_idx, bit_idx; reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); } } clear_bit(__ICE_VF_DIS, pf->state); clear_bit(ICE_FLAG_SRIOV_ENA, pf->flags); } /** * ice_trigger_vf_reset - Reset a VF on HW * @vf: pointer to the VF structure * @is_vflr: true if VFLR was issued, false if not * * Trigger hardware to start a reset for a particular VF. Expects the caller * to wait the proper amount of time to allow hardware to reset the VF before * it cleans up and restores VF functionality. */ static void ice_trigger_vf_reset(struct ice_vf *vf, bool is_vflr) { struct ice_pf *pf = vf->pf; u32 reg, reg_idx, bit_idx; struct ice_hw *hw; int vf_abs_id, i; hw = &pf->hw; vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; /* Inform VF that it is no longer active, as a warning */ clear_bit(ICE_VF_STATE_ACTIVE, vf->vf_states); /* Disable VF's configuration API during reset. The flag is re-enabled * in ice_alloc_vf_res(), when it's safe again to access VF's VSI. * It's normally disabled in ice_free_vf_res(), but it's safer * to do it earlier to give some time to finish to any VF config * functions that may still be running at this point. */ clear_bit(ICE_VF_STATE_INIT, vf->vf_states); /* In the case of a VFLR, the HW has already reset the VF and we * just need to clean up, so don't hit the VFRTRIG register. */ if (!is_vflr) { /* reset VF using VPGEN_VFRTRIG reg */ reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id)); reg |= VPGEN_VFRTRIG_VFSWR_M; wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg); } /* clear the VFLR bit in GLGEN_VFLRSTAT */ reg_idx = (vf_abs_id) / 32; bit_idx = (vf_abs_id) % 32; wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); ice_flush(hw); wr32(hw, PF_PCI_CIAA, VF_DEVICE_STATUS | (vf_abs_id << PF_PCI_CIAA_VF_NUM_S)); for (i = 0; i < 100; i++) { reg = rd32(hw, PF_PCI_CIAD); if ((reg & VF_TRANS_PENDING_M) != 0) dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", vf->vf_id); udelay(1); } } /** * ice_vsi_set_pvid - Set port VLAN id for the VSI * @vsi: the VSI being changed * @vid: the VLAN id to set as a PVID */ static int ice_vsi_set_pvid(struct ice_vsi *vsi, u16 vid) { struct device *dev = &vsi->back->pdev->dev; struct ice_hw *hw = &vsi->back->hw; struct ice_vsi_ctx ctxt = { 0 }; enum ice_status status; ctxt.info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_TAGGED | ICE_AQ_VSI_PVLAN_INSERT_PVID | ICE_AQ_VSI_VLAN_EMOD_STR; ctxt.info.pvid = cpu_to_le16(vid); ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); status = ice_update_vsi(hw, vsi->idx, &ctxt, NULL); if (status) { dev_info(dev, "update VSI for VLAN insert failed, err %d aq_err %d\n", status, hw->adminq.sq_last_status); return -EIO; } vsi->info.pvid = ctxt.info.pvid; vsi->info.vlan_flags = ctxt.info.vlan_flags; return 0; } /** * ice_vsi_kill_pvid - Remove port VLAN id from the VSI * @vsi: the VSI being changed */ static int ice_vsi_kill_pvid(struct ice_vsi *vsi) { struct ice_pf *pf = vsi->back; if (ice_vsi_manage_vlan_stripping(vsi, false)) { dev_err(&pf->pdev->dev, "Error removing Port VLAN on VSI %i\n", vsi->vsi_num); return -ENODEV; } vsi->info.pvid = 0; return 0; } /** * ice_vf_vsi_setup - Set up a VF VSI * @pf: board private structure * @pi: pointer to the port_info instance * @vf_id: defines VF id to which this VSI connects. * * Returns pointer to the successfully allocated VSI struct on success, * otherwise returns NULL on failure. */ static struct ice_vsi * ice_vf_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, u16 vf_id) { return ice_vsi_setup(pf, pi, ICE_VSI_VF, vf_id); } /** * ice_alloc_vsi_res - Setup VF VSI and its resources * @vf: pointer to the VF structure * * Returns 0 on success, negative value on failure */ static int ice_alloc_vsi_res(struct ice_vf *vf) { struct ice_pf *pf = vf->pf; LIST_HEAD(tmp_add_list); u8 broadcast[ETH_ALEN]; struct ice_vsi *vsi; int status = 0; vsi = ice_vf_vsi_setup(pf, pf->hw.port_info, vf->vf_id); if (!vsi) { dev_err(&pf->pdev->dev, "Failed to create VF VSI\n"); return -ENOMEM; } vf->lan_vsi_idx = vsi->idx; vf->lan_vsi_num = vsi->vsi_num; /* first vector index is the VFs OICR index */ vf->first_vector_idx = vsi->hw_base_vector; /* Since hw_base_vector holds the vector where data queue interrupts * starts, increment by 1 since VFs allocated vectors include OICR intr * as well. */ vsi->hw_base_vector += 1; /* Check if port VLAN exist before, and restore it accordingly */ if (vf->port_vlan_id) ice_vsi_set_pvid(vsi, vf->port_vlan_id); eth_broadcast_addr(broadcast); status = ice_add_mac_to_list(vsi, &tmp_add_list, broadcast); if (status) goto ice_alloc_vsi_res_exit; if (is_valid_ether_addr(vf->dflt_lan_addr.addr)) { status = ice_add_mac_to_list(vsi, &tmp_add_list, vf->dflt_lan_addr.addr); if (status) goto ice_alloc_vsi_res_exit; } status = ice_add_mac(&pf->hw, &tmp_add_list); if (status) dev_err(&pf->pdev->dev, "could not add mac filters\n"); /* Clear this bit after VF initialization since we shouldn't reclaim * and reassign interrupts for synchronous or asynchronous VFR events. * We don't want to reconfigure interrupts since AVF driver doesn't * expect vector assignment to be changed unless there is a request for * more vectors. */ clear_bit(ICE_VF_STATE_CFG_INTR, vf->vf_states); ice_alloc_vsi_res_exit: ice_free_fltr_list(&pf->pdev->dev, &tmp_add_list); return status; } /** * ice_alloc_vf_res - Allocate VF resources * @vf: pointer to the VF structure */ static int ice_alloc_vf_res(struct ice_vf *vf) { int status; /* setup VF VSI and necessary resources */ status = ice_alloc_vsi_res(vf); if (status) goto ice_alloc_vf_res_exit; if (vf->trusted) set_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); else clear_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); /* VF is now completely initialized */ set_bit(ICE_VF_STATE_INIT, vf->vf_states); return status; ice_alloc_vf_res_exit: ice_free_vf_res(vf); return status; } /** * ice_ena_vf_mappings * @vf: pointer to the VF structure * * Enable VF vectors and queues allocation by writing the details into * respective registers. */ static void ice_ena_vf_mappings(struct ice_vf *vf) { struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; int first, last, v; struct ice_hw *hw; int abs_vf_id; u32 reg; hw = &pf->hw; vsi = pf->vsi[vf->lan_vsi_idx]; first = vf->first_vector_idx; last = (first + pf->num_vf_msix) - 1; abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; /* VF Vector allocation */ reg = (((first << VPINT_ALLOC_FIRST_S) & VPINT_ALLOC_FIRST_M) | ((last << VPINT_ALLOC_LAST_S) & VPINT_ALLOC_LAST_M) | VPINT_ALLOC_VALID_M); wr32(hw, VPINT_ALLOC(vf->vf_id), reg); /* map the interrupts to its functions */ for (v = first; v <= last; v++) { reg = (((abs_vf_id << GLINT_VECT2FUNC_VF_NUM_S) & GLINT_VECT2FUNC_VF_NUM_M) | ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) & GLINT_VECT2FUNC_PF_NUM_M)); wr32(hw, GLINT_VECT2FUNC(v), reg); } /* VF Tx queues allocation */ if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) { wr32(hw, VPLAN_TXQ_MAPENA(vf->vf_id), VPLAN_TXQ_MAPENA_TX_ENA_M); /* set the VF PF Tx queue range * VFNUMQ value should be set to (number of queues - 1). A value * of 0 means 1 queue and a value of 255 means 256 queues */ reg = (((vsi->txq_map[0] << VPLAN_TX_QBASE_VFFIRSTQ_S) & VPLAN_TX_QBASE_VFFIRSTQ_M) | (((vsi->alloc_txq - 1) << VPLAN_TX_QBASE_VFNUMQ_S) & VPLAN_TX_QBASE_VFNUMQ_M)); wr32(hw, VPLAN_TX_QBASE(vf->vf_id), reg); } else { dev_err(&pf->pdev->dev, "Scattered mode for VF Tx queues is not yet implemented\n"); } /* VF Rx queues allocation */ if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) { wr32(hw, VPLAN_RXQ_MAPENA(vf->vf_id), VPLAN_RXQ_MAPENA_RX_ENA_M); /* set the VF PF Rx queue range * VFNUMQ value should be set to (number of queues - 1). A value * of 0 means 1 queue and a value of 255 means 256 queues */ reg = (((vsi->rxq_map[0] << VPLAN_RX_QBASE_VFFIRSTQ_S) & VPLAN_RX_QBASE_VFFIRSTQ_M) | (((vsi->alloc_txq - 1) << VPLAN_RX_QBASE_VFNUMQ_S) & VPLAN_RX_QBASE_VFNUMQ_M)); wr32(hw, VPLAN_RX_QBASE(vf->vf_id), reg); } else { dev_err(&pf->pdev->dev, "Scattered mode for VF Rx queues is not yet implemented\n"); } } /** * ice_determine_res * @pf: pointer to the PF structure * @avail_res: available resources in the PF structure * @max_res: maximum resources that can be given per VF * @min_res: minimum resources that can be given per VF * * Returns non-zero value if resources (queues/vectors) are available or * returns zero if PF cannot accommodate for all num_alloc_vfs. */ static int ice_determine_res(struct ice_pf *pf, u16 avail_res, u16 max_res, u16 min_res) { bool checked_min_res = false; int res; /* start by checking if PF can assign max number of resources for * all num_alloc_vfs. * if yes, return number per VF * If no, divide by 2 and roundup, check again * repeat the loop till we reach a point where even minimum resources * are not available, in that case return 0 */ res = max_res; while ((res >= min_res) && !checked_min_res) { int num_all_res; num_all_res = pf->num_alloc_vfs * res; if (num_all_res <= avail_res) return res; if (res == min_res) checked_min_res = true; res = DIV_ROUND_UP(res, 2); } return 0; } /** * ice_check_avail_res - check if vectors and queues are available * @pf: pointer to the PF structure * * This function is where we calculate actual number of resources for VF VSIs, * we don't reserve ahead of time during probe. Returns success if vectors and * queues resources are available, otherwise returns error code */ static int ice_check_avail_res(struct ice_pf *pf) { u16 num_msix, num_txq, num_rxq; if (!pf->num_alloc_vfs) return -EINVAL; /* Grab from HW interrupts common pool * Note: By the time the user decides it needs more vectors in a VF * its already too late since one must decide this prior to creating the * VF interface. So the best we can do is take a guess as to what the * user might want. * * We have two policies for vector allocation: * 1. if num_alloc_vfs is from 1 to 16, then we consider this as small * number of NFV VFs used for NFV appliances, since this is a special * case, we try to assign maximum vectors per VF (65) as much as * possible, based on determine_resources algorithm. * 2. if num_alloc_vfs is from 17 to 256, then its large number of * regular VFs which are not used for any special purpose. Hence try to * grab default interrupt vectors (5 as supported by AVF driver). */ if (pf->num_alloc_vfs <= 16) { num_msix = ice_determine_res(pf, pf->num_avail_hw_msix, ICE_MAX_INTR_PER_VF, ICE_MIN_INTR_PER_VF); } else if (pf->num_alloc_vfs <= ICE_MAX_VF_COUNT) { num_msix = ice_determine_res(pf, pf->num_avail_hw_msix, ICE_DFLT_INTR_PER_VF, ICE_MIN_INTR_PER_VF); } else { dev_err(&pf->pdev->dev, "Number of VFs %d exceeds max VF count %d\n", pf->num_alloc_vfs, ICE_MAX_VF_COUNT); return -EIO; } if (!num_msix) return -EIO; /* Grab from the common pool * start by requesting Default queues (4 as supported by AVF driver), * Note that, the main difference between queues and vectors is, latter * can only be reserved at init time but queues can be requested by VF * at runtime through Virtchnl, that is the reason we start by reserving * few queues. */ num_txq = ice_determine_res(pf, pf->q_left_tx, ICE_DFLT_QS_PER_VF, ICE_MIN_QS_PER_VF); num_rxq = ice_determine_res(pf, pf->q_left_rx, ICE_DFLT_QS_PER_VF, ICE_MIN_QS_PER_VF); if (!num_txq || !num_rxq) return -EIO; /* since AVF driver works with only queue pairs which means, it expects * to have equal number of Rx and Tx queues, so take the minimum of * available Tx or Rx queues */ pf->num_vf_qps = min_t(int, num_txq, num_rxq); pf->num_vf_msix = num_msix; return 0; } /** * ice_cleanup_and_realloc_vf - Clean up VF and reallocate resources after reset * @vf: pointer to the VF structure * * Cleanup a VF after the hardware reset is finished. Expects the caller to * have verified whether the reset is finished properly, and ensure the * minimum amount of wait time has passed. Reallocate VF resources back to make * VF state active */ static void ice_cleanup_and_realloc_vf(struct ice_vf *vf) { struct ice_pf *pf = vf->pf; struct ice_hw *hw; u32 reg; hw = &pf->hw; /* PF software completes the flow by notifying VF that reset flow is * completed. This is done by enabling hardware by clearing the reset * bit in the VPGEN_VFRTRIG reg and setting VFR_STATE in the VFGEN_RSTAT * register to VFR completed (done at the end of this function) * By doing this we allow HW to access VF memory at any point. If we * did it any sooner, HW could access memory while it was being freed * in ice_free_vf_res(), causing an IOMMU fault. * * On the other hand, this needs to be done ASAP, because the VF driver * is waiting for this to happen and may report a timeout. It's * harmless, but it gets logged into Guest OS kernel log, so best avoid * it. */ reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id)); reg &= ~VPGEN_VFRTRIG_VFSWR_M; wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg); /* reallocate VF resources to finish resetting the VSI state */ if (!ice_alloc_vf_res(vf)) { ice_ena_vf_mappings(vf); set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states); clear_bit(ICE_VF_STATE_DIS, vf->vf_states); vf->num_vlan = 0; } /* Tell the VF driver the reset is done. This needs to be done only * after VF has been fully initialized, because the VF driver may * request resources immediately after setting this flag. */ wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); } /** * ice_reset_all_vfs - reset all allocated VFs in one go * @pf: pointer to the PF structure * @is_vflr: true if VFLR was issued, false if not * * First, tell the hardware to reset each VF, then do all the waiting in one * chunk, and finally finish restoring each VF after the wait. This is useful * during PF routines which need to reset all VFs, as otherwise it must perform * these resets in a serialized fashion. * * Returns true if any VFs were reset, and false otherwise. */ bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr) { struct ice_hw *hw = &pf->hw; int v, i; /* If we don't have any VFs, then there is nothing to reset */ if (!pf->num_alloc_vfs) return false; /* If VFs have been disabled, there is no need to reset */ if (test_and_set_bit(__ICE_VF_DIS, pf->state)) return false; /* Begin reset on all VFs at once */ for (v = 0; v < pf->num_alloc_vfs; v++) ice_trigger_vf_reset(&pf->vf[v], is_vflr); /* Call Disable LAN Tx queue AQ call with VFR bit set and 0 * queues to inform Firmware about VF reset. */ for (v = 0; v < pf->num_alloc_vfs; v++) ice_dis_vsi_txq(pf->vsi[0]->port_info, 0, NULL, NULL, ICE_VF_RESET, v, NULL); /* HW requires some time to make sure it can flush the FIFO for a VF * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in * sequence to make sure that it has completed. We'll keep track of * the VFs using a simple iterator that increments once that VF has * finished resetting. */ for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { usleep_range(10000, 20000); /* Check each VF in sequence */ while (v < pf->num_alloc_vfs) { struct ice_vf *vf = &pf->vf[v]; u32 reg; reg = rd32(hw, VPGEN_VFRSTAT(vf->vf_id)); if (!(reg & VPGEN_VFRSTAT_VFRD_M)) break; /* If the current VF has finished resetting, move on * to the next VF in sequence. */ v++; } } /* Display a warning if at least one VF didn't manage to reset in * time, but continue on with the operation. */ if (v < pf->num_alloc_vfs) dev_warn(&pf->pdev->dev, "VF reset check timeout\n"); usleep_range(10000, 20000); /* free VF resources to begin resetting the VSI state */ for (v = 0; v < pf->num_alloc_vfs; v++) ice_free_vf_res(&pf->vf[v]); if (ice_check_avail_res(pf)) { dev_err(&pf->pdev->dev, "Cannot allocate VF resources, try with fewer number of VFs\n"); return false; } /* Finish the reset on each VF */ for (v = 0; v < pf->num_alloc_vfs; v++) ice_cleanup_and_realloc_vf(&pf->vf[v]); ice_flush(hw); clear_bit(__ICE_VF_DIS, pf->state); return true; } /** * ice_reset_vf - Reset a particular VF * @vf: pointer to the VF structure * @is_vflr: true if VFLR was issued, false if not * * Returns true if the VF is reset, false otherwise. */ static bool ice_reset_vf(struct ice_vf *vf, bool is_vflr) { struct ice_pf *pf = vf->pf; struct ice_hw *hw = &pf->hw; bool rsd = false; u32 reg; int i; /* If the VFs have been disabled, this means something else is * resetting the VF, so we shouldn't continue. */ if (test_and_set_bit(__ICE_VF_DIS, pf->state)) return false; ice_trigger_vf_reset(vf, is_vflr); if (test_bit(ICE_VF_STATE_ENA, vf->vf_states)) { ice_vsi_stop_tx_rings(pf->vsi[vf->lan_vsi_idx], ICE_VF_RESET, vf->vf_id); ice_vsi_stop_rx_rings(pf->vsi[vf->lan_vsi_idx]); clear_bit(ICE_VF_STATE_ENA, vf->vf_states); } else { /* Call Disable LAN Tx queue AQ call even when queues are not * enabled. This is needed for successful completiom of VFR */ ice_dis_vsi_txq(pf->vsi[vf->lan_vsi_idx]->port_info, 0, NULL, NULL, ICE_VF_RESET, vf->vf_id, NULL); } /* poll VPGEN_VFRSTAT reg to make sure * that reset is complete */ for (i = 0; i < 10; i++) { /* VF reset requires driver to first reset the VF and then * poll the status register to make sure that the reset * completed successfully. */ usleep_range(10000, 20000); reg = rd32(hw, VPGEN_VFRSTAT(vf->vf_id)); if (reg & VPGEN_VFRSTAT_VFRD_M) { rsd = true; break; } } /* Display a warning if VF didn't manage to reset in time, but need to * continue on with the operation. */ if (!rsd) dev_warn(&pf->pdev->dev, "VF reset check timeout on VF %d\n", vf->vf_id); usleep_range(10000, 20000); /* free VF resources to begin resetting the VSI state */ ice_free_vf_res(vf); ice_cleanup_and_realloc_vf(vf); ice_flush(hw); clear_bit(__ICE_VF_DIS, pf->state); return true; } /** * ice_vc_notify_reset - Send pending reset message to all VFs * @pf: pointer to the PF structure * * indicate a pending reset to all VFs on a given PF */ void ice_vc_notify_reset(struct ice_pf *pf) { struct virtchnl_pf_event pfe; if (!pf->num_alloc_vfs) return; pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, ICE_SUCCESS, (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); } /** * ice_vc_notify_vf_reset - Notify VF of a reset event * @vf: pointer to the VF structure */ static void ice_vc_notify_vf_reset(struct ice_vf *vf) { struct virtchnl_pf_event pfe; /* validate the request */ if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) return; /* verify if the VF is in either init or active before proceeding */ if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) && !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) return; pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; ice_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(pfe), NULL); } /** * ice_alloc_vfs - Allocate and set up VFs resources * @pf: pointer to the PF structure * @num_alloc_vfs: number of VFs to allocate */ static int ice_alloc_vfs(struct ice_pf *pf, u16 num_alloc_vfs) { struct ice_hw *hw = &pf->hw; struct ice_vf *vfs; int i, ret; /* Disable global interrupt 0 so we don't try to handle the VFLR. */ wr32(hw, GLINT_DYN_CTL(pf->hw_oicr_idx), ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S); ice_flush(hw); ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); if (ret) { pf->num_alloc_vfs = 0; goto err_unroll_intr; } /* allocate memory */ vfs = devm_kcalloc(&pf->pdev->dev, num_alloc_vfs, sizeof(*vfs), GFP_KERNEL); if (!vfs) { ret = -ENOMEM; goto err_unroll_sriov; } pf->vf = vfs; /* apply default profile */ for (i = 0; i < num_alloc_vfs; i++) { vfs[i].pf = pf; vfs[i].vf_sw_id = pf->first_sw; vfs[i].vf_id = i; /* assign default capabilities */ set_bit(ICE_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); vfs[i].spoofchk = true; /* Set this state so that PF driver does VF vector assignment */ set_bit(ICE_VF_STATE_CFG_INTR, vfs[i].vf_states); } pf->num_alloc_vfs = num_alloc_vfs; /* VF resources get allocated during reset */ if (!ice_reset_all_vfs(pf, false)) goto err_unroll_sriov; goto err_unroll_intr; err_unroll_sriov: pci_disable_sriov(pf->pdev); err_unroll_intr: /* rearm interrupts here */ ice_irq_dynamic_ena(hw, NULL, NULL); return ret; } /** * ice_pf_state_is_nominal - checks the pf for nominal state * @pf: pointer to pf to check * * Check the PF's state for a collection of bits that would indicate * the PF is in a state that would inhibit normal operation for * driver functionality. * * Returns true if PF is in a nominal state. * Returns false otherwise */ static bool ice_pf_state_is_nominal(struct ice_pf *pf) { DECLARE_BITMAP(check_bits, __ICE_STATE_NBITS) = { 0 }; if (!pf) return false; bitmap_set(check_bits, 0, __ICE_STATE_NOMINAL_CHECK_BITS); if (bitmap_intersects(pf->state, check_bits, __ICE_STATE_NBITS)) return false; return true; } /** * ice_pci_sriov_ena - Enable or change number of VFs * @pf: pointer to the PF structure * @num_vfs: number of VFs to allocate */ static int ice_pci_sriov_ena(struct ice_pf *pf, int num_vfs) { int pre_existing_vfs = pci_num_vf(pf->pdev); struct device *dev = &pf->pdev->dev; int err; if (!ice_pf_state_is_nominal(pf)) { dev_err(dev, "Cannot enable SR-IOV, device not ready\n"); return -EBUSY; } if (!test_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags)) { dev_err(dev, "This device is not capable of SR-IOV\n"); return -ENODEV; } if (pre_existing_vfs && pre_existing_vfs != num_vfs) ice_free_vfs(pf); else if (pre_existing_vfs && pre_existing_vfs == num_vfs) return num_vfs; if (num_vfs > pf->num_vfs_supported) { dev_err(dev, "Can't enable %d VFs, max VFs supported is %d\n", num_vfs, pf->num_vfs_supported); return -ENOTSUPP; } dev_info(dev, "Allocating %d VFs\n", num_vfs); err = ice_alloc_vfs(pf, num_vfs); if (err) { dev_err(dev, "Failed to enable SR-IOV: %d\n", err); return err; } set_bit(ICE_FLAG_SRIOV_ENA, pf->flags); return num_vfs; } /** * ice_sriov_configure - Enable or change number of VFs via sysfs * @pdev: pointer to a pci_dev structure * @num_vfs: number of VFs to allocate * * This function is called when the user updates the number of VFs in sysfs. */ int ice_sriov_configure(struct pci_dev *pdev, int num_vfs) { struct ice_pf *pf = pci_get_drvdata(pdev); if (num_vfs) return ice_pci_sriov_ena(pf, num_vfs); if (!pci_vfs_assigned(pdev)) { ice_free_vfs(pf); } else { dev_err(&pf->pdev->dev, "can't free VFs because some are assigned to VMs.\n"); return -EBUSY; } return 0; } /** * ice_process_vflr_event - Free VF resources via IRQ calls * @pf: pointer to the PF structure * * called from the VLFR IRQ handler to * free up VF resources and state variables */ void ice_process_vflr_event(struct ice_pf *pf) { struct ice_hw *hw = &pf->hw; int vf_id; u32 reg; if (!test_bit(__ICE_VFLR_EVENT_PENDING, pf->state) || !pf->num_alloc_vfs) return; /* Re-enable the VFLR interrupt cause here, before looking for which * VF got reset. Otherwise, if another VF gets a reset while the * first one is being processed, that interrupt will be lost, and * that VF will be stuck in reset forever. */ reg = rd32(hw, PFINT_OICR_ENA); reg |= PFINT_OICR_VFLR_M; wr32(hw, PFINT_OICR_ENA, reg); ice_flush(hw); clear_bit(__ICE_VFLR_EVENT_PENDING, pf->state); for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { struct ice_vf *vf = &pf->vf[vf_id]; u32 reg_idx, bit_idx; reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; /* read GLGEN_VFLRSTAT register to find out the flr VFs */ reg = rd32(hw, GLGEN_VFLRSTAT(reg_idx)); if (reg & BIT(bit_idx)) /* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */ ice_reset_vf(vf, true); } } /** * ice_vc_dis_vf - Disable a given VF via SW reset * @vf: pointer to the VF info * * Disable the VF through a SW reset */ static void ice_vc_dis_vf(struct ice_vf *vf) { ice_vc_notify_vf_reset(vf); ice_reset_vf(vf, false); } /** * ice_vc_send_msg_to_vf - Send message to VF * @vf: pointer to the VF info * @v_opcode: virtual channel opcode * @v_retval: virtual channel return value * @msg: pointer to the msg buffer * @msglen: msg length * * send msg to VF */ static int ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode, enum ice_status v_retval, u8 *msg, u16 msglen) { enum ice_status aq_ret; struct ice_pf *pf; /* validate the request */ if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) return -EINVAL; pf = vf->pf; /* single place to detect unsuccessful return values */ if (v_retval) { vf->num_inval_msgs++; dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", vf->vf_id, v_opcode, v_retval); if (vf->num_inval_msgs > ICE_DFLT_NUM_INVAL_MSGS_ALLOWED) { dev_err(&pf->pdev->dev, "Number of invalid messages exceeded for VF %d\n", vf->vf_id); dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); set_bit(ICE_VF_STATE_DIS, vf->vf_states); return -EIO; } } else { vf->num_valid_msgs++; /* reset the invalid counter, if a valid message is received. */ vf->num_inval_msgs = 0; } aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval, msg, msglen, NULL); if (aq_ret) { dev_info(&pf->pdev->dev, "Unable to send the message to VF %d aq_err %d\n", vf->vf_id, pf->hw.mailboxq.sq_last_status); return -EIO; } return 0; } /** * ice_vc_get_ver_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request the API version used by the PF */ static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_version_info info = { VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR }; vf->vf_ver = *(struct virtchnl_version_info *)msg; /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ if (VF_IS_V10(&vf->vf_ver)) info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, ICE_SUCCESS, (u8 *)&info, sizeof(struct virtchnl_version_info)); } /** * ice_vc_get_vf_res_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request its resources */ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_vf_resource *vfres = NULL; enum ice_status aq_ret = 0; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; int len = 0; int ret; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto err; } len = sizeof(struct virtchnl_vf_resource); vfres = devm_kzalloc(&pf->pdev->dev, len, GFP_KERNEL); if (!vfres) { aq_ret = ICE_ERR_NO_MEMORY; len = 0; goto err; } if (VF_IS_V11(&vf->vf_ver)) vf->driver_caps = *(u32 *)msg; else vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_RSS_REG | VIRTCHNL_VF_OFFLOAD_VLAN; vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; vsi = pf->vsi[vf->lan_vsi_idx]; if (!vsi->info.pvid) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; } else { if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; else vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; } if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; vfres->num_vsis = 1; /* Tx and Rx queue are equal for VF */ vfres->num_queue_pairs = vsi->num_txq; vfres->max_vectors = pf->num_vf_msix; vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE; vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE; vfres->vsi_res[0].vsi_id = vf->lan_vsi_num; vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; vfres->vsi_res[0].num_queue_pairs = vsi->num_txq; ether_addr_copy(vfres->vsi_res[0].default_mac_addr, vf->dflt_lan_addr.addr); set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states); err: /* send the response back to the VF */ ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, aq_ret, (u8 *)vfres, len); devm_kfree(&pf->pdev->dev, vfres); return ret; } /** * ice_vc_reset_vf_msg * @vf: pointer to the VF info * * called from the VF to reset itself, * unlike other virtchnl messages, PF driver * doesn't send the response back to the VF */ static void ice_vc_reset_vf_msg(struct ice_vf *vf) { if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) ice_reset_vf(vf, false); } /** * ice_find_vsi_from_id * @pf: the pf structure to search for the VSI * @id: id of the VSI it is searching for * * searches for the VSI with the given id */ static struct ice_vsi *ice_find_vsi_from_id(struct ice_pf *pf, u16 id) { int i; for (i = 0; i < pf->num_alloc_vsi; i++) if (pf->vsi[i] && pf->vsi[i]->vsi_num == id) return pf->vsi[i]; return NULL; } /** * ice_vc_isvalid_vsi_id * @vf: pointer to the VF info * @vsi_id: VF relative VSI id * * check for the valid VSI id */ static bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id) { struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; vsi = ice_find_vsi_from_id(pf, vsi_id); return (vsi && (vsi->vf_id == vf->vf_id)); } /** * ice_vc_isvalid_q_id * @vf: pointer to the VF info * @vsi_id: VSI id * @qid: VSI relative queue id * * check for the valid queue id */ static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid) { struct ice_vsi *vsi = ice_find_vsi_from_id(vf->pf, vsi_id); /* allocated Tx and Rx queues should be always equal for VF VSI */ return (vsi && (qid < vsi->alloc_txq)); } /** * ice_vc_config_rss_key * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Configure the VF's RSS key */ static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg) { struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg; struct ice_vsi *vsi = NULL; enum ice_status aq_ret; int ret; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vrk->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { aq_ret = ICE_ERR_PARAM; goto error_param; } ret = ice_set_rss(vsi, vrk->key, NULL, 0); aq_ret = ret ? ICE_ERR_PARAM : ICE_SUCCESS; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, aq_ret, NULL, 0); } /** * ice_vc_config_rss_lut * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Configure the VF's RSS LUT */ static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg) { struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg; struct ice_vsi *vsi = NULL; enum ice_status aq_ret; int ret; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vrl->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { aq_ret = ICE_ERR_PARAM; goto error_param; } ret = ice_set_rss(vsi, NULL, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE); aq_ret = ret ? ICE_ERR_PARAM : ICE_SUCCESS; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, aq_ret, NULL, 0); } /** * ice_vc_get_stats_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to get VSI stats */ static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; enum ice_status aq_ret = 0; struct ice_eth_stats stats; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vqs->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } memset(&stats, 0, sizeof(struct ice_eth_stats)); ice_update_eth_stats(vsi); stats = vsi->eth_stats; error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, (u8 *)&stats, sizeof(stats)); } /** * ice_vc_ena_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to enable all or specific queue(s) */ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; enum ice_status aq_ret = 0; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!vqs->rx_queues && !vqs->tx_queues) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vqs->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } /* Enable only Rx rings, Tx rings were enabled by the FW when the * Tx queue group list was configured and the context bits were * programmed using ice_vsi_cfg_txqs */ if (ice_vsi_start_rx_rings(vsi)) aq_ret = ICE_ERR_PARAM; /* Set flag to indicate that queues are enabled */ if (!aq_ret) set_bit(ICE_VF_STATE_ENA, vf->vf_states); error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, aq_ret, NULL, 0); } /** * ice_vc_dis_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to disable all or specific * queue(s) */ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; enum ice_status aq_ret = 0; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) && !test_bit(ICE_VF_STATE_ENA, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!vqs->rx_queues && !vqs->tx_queues) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vqs->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, vf->vf_id)) { dev_err(&vsi->back->pdev->dev, "Failed to stop tx rings on VSI %d\n", vsi->vsi_num); aq_ret = ICE_ERR_PARAM; } if (ice_vsi_stop_rx_rings(vsi)) { dev_err(&vsi->back->pdev->dev, "Failed to stop rx rings on VSI %d\n", vsi->vsi_num); aq_ret = ICE_ERR_PARAM; } /* Clear enabled queues flag */ if (!aq_ret) clear_bit(ICE_VF_STATE_ENA, vf->vf_states); error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, aq_ret, NULL, 0); } /** * ice_vc_cfg_irq_map_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure the IRQ to queue map */ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_irq_map_info *irqmap_info = (struct virtchnl_irq_map_info *)msg; u16 vsi_id, vsi_q_id, vector_id; struct virtchnl_vector_map *map; struct ice_vsi *vsi = NULL; struct ice_pf *pf = vf->pf; enum ice_status aq_ret = 0; unsigned long qmap; int i; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } for (i = 0; i < irqmap_info->num_vectors; i++) { map = &irqmap_info->vecmap[i]; vector_id = map->vector_id; vsi_id = map->vsi_id; /* validate msg params */ if (!(vector_id < pf->hw.func_caps.common_cap .num_msix_vectors) || !ice_vc_isvalid_vsi_id(vf, vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } /* lookout for the invalid queue index */ qmap = map->rxq_map; for_each_set_bit(vsi_q_id, &qmap, ICE_MAX_BASE_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vf, vsi_id, vsi_q_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi->q_vectors[i]->num_ring_rx++; vsi->rx_rings[vsi_q_id]->itr_setting = map->rxitr_idx; vsi->rx_rings[vsi_q_id]->q_vector = vsi->q_vectors[i]; } qmap = map->txq_map; for_each_set_bit(vsi_q_id, &qmap, ICE_MAX_BASE_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vf, vsi_id, vsi_q_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi->q_vectors[i]->num_ring_tx++; vsi->tx_rings[vsi_q_id]->itr_setting = map->txitr_idx; vsi->tx_rings[vsi_q_id]->q_vector = vsi->q_vectors[i]; } } if (vsi) ice_vsi_cfg_msix(vsi); error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, aq_ret, NULL, 0); } /** * ice_vc_cfg_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure the Rx/Tx queues */ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_vsi_queue_config_info *qci = (struct virtchnl_vsi_queue_config_info *)msg; struct virtchnl_queue_pair_info *qpi; enum ice_status aq_ret = 0; struct ice_vsi *vsi; int i; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = ice_find_vsi_from_id(vf->pf, qci->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } for (i = 0; i < qci->num_queue_pairs; i++) { qpi = &qci->qpair[i]; if (qpi->txq.vsi_id != qci->vsi_id || qpi->rxq.vsi_id != qci->vsi_id || qpi->rxq.queue_id != qpi->txq.queue_id || !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } /* copy Tx queue info from VF into VSI */ vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr; vsi->tx_rings[i]->count = qpi->txq.ring_len; /* copy Rx queue info from VF into vsi */ vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr; vsi->rx_rings[i]->count = qpi->rxq.ring_len; if (qpi->rxq.databuffer_size > ((16 * 1024) - 128)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi->rx_buf_len = qpi->rxq.databuffer_size; if (qpi->rxq.max_pkt_size >= (16 * 1024) || qpi->rxq.max_pkt_size < 64) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi->max_frame = qpi->rxq.max_pkt_size; } /* VF can request to configure less than allocated queues * or default allocated queues. So update the VSI with new number */ vsi->num_txq = qci->num_queue_pairs; vsi->num_rxq = qci->num_queue_pairs; if (!ice_vsi_cfg_txqs(vsi) && !ice_vsi_cfg_rxqs(vsi)) aq_ret = 0; else aq_ret = ICE_ERR_PARAM; error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, aq_ret, NULL, 0); } /** * ice_is_vf_trusted * @vf: pointer to the VF info */ static bool ice_is_vf_trusted(struct ice_vf *vf) { return test_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); } /** * ice_can_vf_change_mac * @vf: pointer to the VF info * * Return true if the VF is allowed to change its MAC filters, false otherwise */ static bool ice_can_vf_change_mac(struct ice_vf *vf) { /* If the VF MAC address has been set administratively (via the * ndo_set_vf_mac command), then deny permission to the VF to * add/delete unicast MAC addresses, unless the VF is trusted */ if (vf->pf_set_mac && !ice_is_vf_trusted(vf)) return false; return true; } /** * ice_vc_handle_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @set: true if mac filters are being set, false otherwise * * add guest mac address filter */ static int ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set) { struct virtchnl_ether_addr_list *al = (struct virtchnl_ether_addr_list *)msg; struct ice_pf *pf = vf->pf; enum virtchnl_ops vc_op; enum ice_status ret; LIST_HEAD(mac_list); struct ice_vsi *vsi; int mac_count = 0; int i; if (set) vc_op = VIRTCHNL_OP_ADD_ETH_ADDR; else vc_op = VIRTCHNL_OP_DEL_ETH_ADDR; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) || !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) { ret = ICE_ERR_PARAM; goto handle_mac_exit; } if (set && !ice_is_vf_trusted(vf) && (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) { dev_err(&pf->pdev->dev, "Can't add more MAC addresses, because VF is not trusted, switch the VF to trusted mode in order to add more functionalities\n"); ret = ICE_ERR_PARAM; goto handle_mac_exit; } vsi = pf->vsi[vf->lan_vsi_idx]; for (i = 0; i < al->num_elements; i++) { u8 *maddr = al->list[i].addr; if (ether_addr_equal(maddr, vf->dflt_lan_addr.addr) || is_broadcast_ether_addr(maddr)) { if (set) { /* VF is trying to add filters that the PF * already added. Just continue. */ dev_info(&pf->pdev->dev, "mac %pM already set for VF %d\n", maddr, vf->vf_id); continue; } else { /* VF can't remove dflt_lan_addr/bcast mac */ dev_err(&pf->pdev->dev, "can't remove mac %pM for VF %d\n", maddr, vf->vf_id); ret = ICE_ERR_PARAM; goto handle_mac_exit; } } /* check for the invalid cases and bail if necessary */ if (is_zero_ether_addr(maddr)) { dev_err(&pf->pdev->dev, "invalid mac %pM provided for VF %d\n", maddr, vf->vf_id); ret = ICE_ERR_PARAM; goto handle_mac_exit; } if (is_unicast_ether_addr(maddr) && !ice_can_vf_change_mac(vf)) { dev_err(&pf->pdev->dev, "can't change unicast mac for untrusted VF %d\n", vf->vf_id); ret = ICE_ERR_PARAM; goto handle_mac_exit; } /* get here if maddr is multicast or if VF can change mac */ if (ice_add_mac_to_list(vsi, &mac_list, al->list[i].addr)) { ret = ICE_ERR_NO_MEMORY; goto handle_mac_exit; } mac_count++; } /* program the updated filter list */ if (set) ret = ice_add_mac(&pf->hw, &mac_list); else ret = ice_remove_mac(&pf->hw, &mac_list); if (ret) { dev_err(&pf->pdev->dev, "can't update mac filters for VF %d, error %d\n", vf->vf_id, ret); } else { if (set) vf->num_mac += mac_count; else vf->num_mac -= mac_count; } handle_mac_exit: ice_free_fltr_list(&pf->pdev->dev, &mac_list); /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, vc_op, ret, NULL, 0); } /** * ice_vc_add_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * add guest MAC address filter */ static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_handle_mac_addr_msg(vf, msg, true); } /** * ice_vc_del_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove guest MAC address filter */ static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_handle_mac_addr_msg(vf, msg, false); } /** * ice_vc_request_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * VFs get a default number of queues but can use this message to request a * different number. If the request is successful, PF will reset the VF and * return 0. If unsuccessful, PF will send message informing VF of number of * available queue pairs via virtchnl message response to VF. */ static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_vf_res_request *vfres = (struct virtchnl_vf_res_request *)msg; int req_queues = vfres->num_queue_pairs; enum ice_status aq_ret = 0; struct ice_pf *pf = vf->pf; int tx_rx_queue_left; int cur_queues; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } cur_queues = pf->num_vf_qps; tx_rx_queue_left = min_t(int, pf->q_left_tx, pf->q_left_rx); if (req_queues <= 0) { dev_err(&pf->pdev->dev, "VF %d tried to request %d queues. Ignoring.\n", vf->vf_id, req_queues); } else if (req_queues > ICE_MAX_QS_PER_VF) { dev_err(&pf->pdev->dev, "VF %d tried to request more than %d queues.\n", vf->vf_id, ICE_MAX_QS_PER_VF); vfres->num_queue_pairs = ICE_MAX_QS_PER_VF; } else if (req_queues - cur_queues > tx_rx_queue_left) { dev_warn(&pf->pdev->dev, "VF %d requested %d more queues, but only %d left.\n", vf->vf_id, req_queues - cur_queues, tx_rx_queue_left); vfres->num_queue_pairs = tx_rx_queue_left + cur_queues; } else { /* request is successful, then reset VF */ vf->num_req_qs = req_queues; ice_vc_dis_vf(vf); dev_info(&pf->pdev->dev, "VF %d granted request of %d queues.\n", vf->vf_id, req_queues); return 0; } error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, aq_ret, (u8 *)vfres, sizeof(*vfres)); } /** * ice_set_vf_port_vlan * @netdev: network interface device structure * @vf_id: VF identifier * @vlan_id: VLAN id being set * @qos: priority setting * @vlan_proto: VLAN protocol * * program VF Port VLAN id and/or qos */ int ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, __be16 vlan_proto) { u16 vlanprio = vlan_id | (qos << ICE_VLAN_PRIORITY_S); struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_pf *pf = np->vsi->back; struct ice_vsi *vsi; struct ice_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "invalid VF id: %d\n", vf_id); return -EINVAL; } if (vlan_id > ICE_MAX_VLANID || qos > 7) { dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); return -EINVAL; } if (vlan_proto != htons(ETH_P_8021Q)) { dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); return -EPROTONOSUPPORT; } vf = &pf->vf[vf_id]; vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY; } if (le16_to_cpu(vsi->info.pvid) == vlanprio) { /* duplicate request, so just return success */ dev_info(&pf->pdev->dev, "Duplicate pvid %d request\n", vlanprio); return ret; } /* If pvid, then remove all filters on the old VLAN */ if (vsi->info.pvid) ice_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) & VLAN_VID_MASK)); if (vlan_id || qos) { ret = ice_vsi_set_pvid(vsi, vlanprio); if (ret) goto error_set_pvid; } else { ice_vsi_kill_pvid(vsi); } if (vlan_id) { dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan_id, qos, vf_id); /* add new VLAN filter for each MAC */ ret = ice_vsi_add_vlan(vsi, vlan_id); if (ret) goto error_set_pvid; } /* The Port VLAN needs to be saved across resets the same as the * default LAN MAC address. */ vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); error_set_pvid: return ret; } /** * ice_vc_process_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @add_v: Add VLAN if true, otherwise delete VLAN * * Process virtchnl op to add or remove programmed guest VLAN id */ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) { struct virtchnl_vlan_filter_list *vfl = (struct virtchnl_vlan_filter_list *)msg; enum ice_status aq_ret = 0; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; int i; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (add_v && !ice_is_vf_trusted(vf) && vf->num_vlan >= ICE_MAX_VLAN_PER_VF) { dev_info(&pf->pdev->dev, "VF is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n"); aq_ret = ICE_ERR_PARAM; goto error_param; } for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] > ICE_MAX_VLANID) { aq_ret = ICE_ERR_PARAM; dev_err(&pf->pdev->dev, "invalid VF VLAN id %d\n", vfl->vlan_id[i]); goto error_param; } } vsi = ice_find_vsi_from_id(vf->pf, vfl->vsi_id); if (!vsi) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (vsi->info.pvid) { aq_ret = ICE_ERR_PARAM; goto error_param; } if (ice_vsi_manage_vlan_stripping(vsi, add_v)) { dev_err(&pf->pdev->dev, "%sable VLAN stripping failed for VSI %i\n", add_v ? "en" : "dis", vsi->vsi_num); aq_ret = ICE_ERR_PARAM; goto error_param; } if (add_v) { for (i = 0; i < vfl->num_elements; i++) { u16 vid = vfl->vlan_id[i]; if (!ice_vsi_add_vlan(vsi, vid)) { vf->num_vlan++; set_bit(vid, vsi->active_vlans); /* Enable VLAN pruning when VLAN 0 is added */ if (unlikely(!vid)) if (ice_cfg_vlan_pruning(vsi, true)) aq_ret = ICE_ERR_PARAM; } else { aq_ret = ICE_ERR_PARAM; } } } else { for (i = 0; i < vfl->num_elements; i++) { u16 vid = vfl->vlan_id[i]; /* Make sure ice_vsi_kill_vlan is successful before * updating VLAN information */ if (!ice_vsi_kill_vlan(vsi, vid)) { vf->num_vlan--; clear_bit(vid, vsi->active_vlans); /* Disable VLAN pruning when removing VLAN 0 */ if (unlikely(!vid)) ice_cfg_vlan_pruning(vsi, false); } } } error_param: /* send the response to the VF */ if (add_v) return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret, NULL, 0); else return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret, NULL, 0); } /** * ice_vc_add_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Add and program guest VLAN id */ static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_process_vlan_msg(vf, msg, true); } /** * ice_vc_remove_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove programmed guest VLAN id */ static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_process_vlan_msg(vf, msg, false); } /** * ice_vc_ena_vlan_stripping * @vf: pointer to the VF info * * Enable VLAN header stripping for a given VF */ static int ice_vc_ena_vlan_stripping(struct ice_vf *vf) { enum ice_status aq_ret = 0; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = pf->vsi[vf->lan_vsi_idx]; if (ice_vsi_manage_vlan_stripping(vsi, true)) aq_ret = ICE_ERR_AQ_ERROR; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, aq_ret, NULL, 0); } /** * ice_vc_dis_vlan_stripping * @vf: pointer to the VF info * * Disable VLAN header stripping for a given VF */ static int ice_vc_dis_vlan_stripping(struct ice_vf *vf) { enum ice_status aq_ret = 0; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { aq_ret = ICE_ERR_PARAM; goto error_param; } vsi = pf->vsi[vf->lan_vsi_idx]; if (ice_vsi_manage_vlan_stripping(vsi, false)) aq_ret = ICE_ERR_AQ_ERROR; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, aq_ret, NULL, 0); } /** * ice_vc_process_vf_msg - Process request from VF * @pf: pointer to the PF structure * @event: pointer to the AQ event * * called from the common asq/arq handler to * process request from VF */ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event) { u32 v_opcode = le32_to_cpu(event->desc.cookie_high); s16 vf_id = le16_to_cpu(event->desc.retval); u16 msglen = event->msg_len; u8 *msg = event->msg_buf; struct ice_vf *vf = NULL; int err = 0; if (vf_id >= pf->num_alloc_vfs) { err = -EINVAL; goto error_handler; } vf = &pf->vf[vf_id]; /* Check if VF is disabled. */ if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) { err = -EPERM; goto error_handler; } /* Perform basic checks on the msg */ err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); if (err) { if (err == VIRTCHNL_ERR_PARAM) err = -EPERM; else err = -EINVAL; goto error_handler; } /* Perform additional checks specific to RSS and Virtchnl */ if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_KEY) { struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg; if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) err = -EINVAL; } else if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_LUT) { struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg; if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) err = -EINVAL; } error_handler: if (err) { ice_vc_send_msg_to_vf(vf, v_opcode, ICE_ERR_PARAM, NULL, 0); dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n", vf_id, v_opcode, msglen, err); return; } switch (v_opcode) { case VIRTCHNL_OP_VERSION: err = ice_vc_get_ver_msg(vf, msg); break; case VIRTCHNL_OP_GET_VF_RESOURCES: err = ice_vc_get_vf_res_msg(vf, msg); break; case VIRTCHNL_OP_RESET_VF: ice_vc_reset_vf_msg(vf); break; case VIRTCHNL_OP_ADD_ETH_ADDR: err = ice_vc_add_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_DEL_ETH_ADDR: err = ice_vc_del_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_VSI_QUEUES: err = ice_vc_cfg_qs_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_QUEUES: err = ice_vc_ena_qs_msg(vf, msg); ice_vc_notify_vf_link_state(vf); break; case VIRTCHNL_OP_DISABLE_QUEUES: err = ice_vc_dis_qs_msg(vf, msg); break; case VIRTCHNL_OP_REQUEST_QUEUES: err = ice_vc_request_qs_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_IRQ_MAP: err = ice_vc_cfg_irq_map_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_KEY: err = ice_vc_config_rss_key(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_LUT: err = ice_vc_config_rss_lut(vf, msg); break; case VIRTCHNL_OP_GET_STATS: err = ice_vc_get_stats_msg(vf, msg); break; case VIRTCHNL_OP_ADD_VLAN: err = ice_vc_add_vlan_msg(vf, msg); break; case VIRTCHNL_OP_DEL_VLAN: err = ice_vc_remove_vlan_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: err = ice_vc_ena_vlan_stripping(vf); break; case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: err = ice_vc_dis_vlan_stripping(vf); break; case VIRTCHNL_OP_UNKNOWN: default: dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", v_opcode, vf_id); err = ice_vc_send_msg_to_vf(vf, v_opcode, ICE_ERR_NOT_IMPL, NULL, 0); break; } if (err) { /* Helper function cares less about error return values here * as it is busy with pending work. */ dev_info(&pf->pdev->dev, "PF failed to honor VF %d, opcode %d\n, error %d\n", vf_id, v_opcode, err); } } /** * ice_get_vf_cfg * @netdev: network interface device structure * @vf_id: VF identifier * @ivi: VF configuration structure * * return VF configuration */ int ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) { struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; struct ice_vf *vf; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { netdev_err(netdev, "invalid VF id: %d\n", vf_id); return -EINVAL; } vf = &pf->vf[vf_id]; vsi = pf->vsi[vf->lan_vsi_idx]; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { netdev_err(netdev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY; } ivi->vf = vf_id; ether_addr_copy(ivi->mac, vf->dflt_lan_addr.addr); /* VF configuration for VLAN and applicable QoS */ ivi->vlan = le16_to_cpu(vsi->info.pvid) & ICE_VLAN_M; ivi->qos = (le16_to_cpu(vsi->info.pvid) & ICE_PRIORITY_M) >> ICE_VLAN_PRIORITY_S; ivi->trusted = vf->trusted; ivi->spoofchk = vf->spoofchk; if (!vf->link_forced) ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; else if (vf->link_up) ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; else ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; ivi->max_tx_rate = vf->tx_rate; ivi->min_tx_rate = 0; return 0; } /** * ice_set_vf_spoofchk * @netdev: network interface device structure * @vf_id: VF identifier * @ena: flag to enable or disable feature * * Enable or disable VF spoof checking */ int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena) { struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_vsi_ctx ctx = { 0 }; struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; struct ice_vf *vf; int status; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { netdev_err(netdev, "invalid VF id: %d\n", vf_id); return -EINVAL; } vf = &pf->vf[vf_id]; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { netdev_err(netdev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY; } if (ena == vf->spoofchk) { dev_dbg(&pf->pdev->dev, "VF spoofchk already %s\n", ena ? "ON" : "OFF"); return 0; } ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); if (ena) { ctx.info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF; ctx.info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_PRUNE_EN_M; } status = ice_update_vsi(&pf->hw, vsi->idx, &ctx, NULL); if (status) { dev_dbg(&pf->pdev->dev, "Error %d, failed to update VSI* parameters\n", status); return -EIO; } vf->spoofchk = ena; vsi->info.sec_flags = ctx.info.sec_flags; vsi->info.sw_flags2 = ctx.info.sw_flags2; return status; } /** * ice_set_vf_mac * @netdev: network interface device structure * @vf_id: VF identifier * @mac: mac address * * program VF mac address */ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) { struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; struct ice_vf *vf; int ret = 0; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { netdev_err(netdev, "invalid VF id: %d\n", vf_id); return -EINVAL; } vf = &pf->vf[vf_id]; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { netdev_err(netdev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY; } if (is_zero_ether_addr(mac) || is_multicast_ether_addr(mac)) { netdev_err(netdev, "%pM not a valid unicast address\n", mac); return -EINVAL; } /* copy mac into dflt_lan_addr and trigger a VF reset. The reset * flow will use the updated dflt_lan_addr and add a MAC filter * using ice_add_mac. Also set pf_set_mac to indicate that the PF has * set the MAC address for this VF. */ ether_addr_copy(vf->dflt_lan_addr.addr, mac); vf->pf_set_mac = true; netdev_info(netdev, "mac on VF %d set to %pM\n. VF driver will be reinitialized\n", vf_id, mac); ice_vc_dis_vf(vf); return ret; } /** * ice_set_vf_trust * @netdev: network interface device structure * @vf_id: VF identifier * @trusted: Boolean value to enable/disable trusted VF * * Enable or disable a given VF as trusted */ int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted) { struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_vsi *vsi = np->vsi; struct ice_pf *pf = vsi->back; struct ice_vf *vf; /* validate the request */ if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "invalid VF id: %d\n", vf_id); return -EINVAL; } vf = &pf->vf[vf_id]; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); return -EBUSY; } /* Check if already trusted */ if (trusted == vf->trusted) return 0; vf->trusted = trusted; ice_vc_dis_vf(vf); dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", vf_id, trusted ? "" : "un"); return 0; } /** * ice_set_vf_link_state * @netdev: network interface device structure * @vf_id: VF identifier * @link_state: required link state * * Set VF's link state, irrespective of physical link state status */ int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state) { struct ice_netdev_priv *np = netdev_priv(netdev); struct ice_pf *pf = np->vsi->back; struct virtchnl_pf_event pfe = { 0 }; struct ice_link_status *ls; struct ice_vf *vf; struct ice_hw *hw; if (vf_id >= pf->num_alloc_vfs) { dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); return -EINVAL; } vf = &pf->vf[vf_id]; hw = &pf->hw; ls = &pf->hw.port_info->phy.link_info; if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { dev_err(&pf->pdev->dev, "vf %d in reset. Try again.\n", vf_id); return -EBUSY; } pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = PF_EVENT_SEVERITY_INFO; switch (link_state) { case IFLA_VF_LINK_STATE_AUTO: vf->link_forced = false; vf->link_up = ls->link_info & ICE_AQ_LINK_UP; break; case IFLA_VF_LINK_STATE_ENABLE: vf->link_forced = true; vf->link_up = true; break; case IFLA_VF_LINK_STATE_DISABLE: vf->link_forced = true; vf->link_up = false; break; default: return -EINVAL; } if (vf->link_forced) ice_set_pfe_link_forced(vf, &pfe, vf->link_up); else ice_set_pfe_link(vf, &pfe, ls->link_speed, vf->link_up); /* Notify the VF of its new link state */ ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT, 0, (u8 *)&pfe, sizeof(pfe), NULL); return 0; }