diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 2675 |
1 files changed, 0 insertions, 2675 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c deleted file mode 100644 index 80b50e67cbef..000000000000 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c +++ /dev/null @@ -1,2675 +0,0 @@ -// 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); -} - -/** - * 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); - wr32(hw, VPINT_ALLOC_PCI(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); - - /* 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"); - - /* Avoid wait time by stopping all VFs at the same time */ - for (i = 0; i < pf->num_alloc_vfs; i++) { - struct ice_vsi *vsi; - - if (!test_bit(ICE_VF_STATE_ENA, pf->vf[i].vf_states)) - continue; - - vsi = pf->vsi[pf->vf[i].lan_vsi_idx]; - /* stop rings without wait time */ - ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, i); - ice_vsi_stop_rx_rings(vsi); - - clear_bit(ICE_VF_STATE_ENA, pf->vf[i].vf_states); - } - - 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_UNTAGGED | - 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 dont 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); - - reg = (((first << VPINT_ALLOC_PCI_FIRST_S) & VPINT_ALLOC_PCI_FIRST_M) | - ((last << VPINT_ALLOC_PCI_LAST_S) & VPINT_ALLOC_PCI_LAST_M) | - VPINT_ALLOC_PCI_VALID_M); - wr32(hw, VPINT_ALLOC_PCI(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); - } - - /* set regardless of mapping mode */ - wr32(hw, VPLAN_TXQ_MAPENA(vf->vf_id), VPLAN_TXQ_MAPENA_TX_ENA_M); - - /* VF Tx queues allocation */ - if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) { - /* 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"); - } - - /* set regardless of mapping mode */ - wr32(hw, VPLAN_RXQ_MAPENA(vf->vf_id), VPLAN_RXQ_MAPENA_RX_ENA_M); - - /* VF Rx queues allocation */ - if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) { - /* 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; - struct ice_vsi *vsi; - 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); - - vsi = pf->vsi[vf->lan_vsi_idx]; - - if (test_bit(ICE_VF_STATE_ENA, vf->vf_states)) { - ice_vsi_stop_lan_tx_rings(vsi, ICE_VF_RESET, vf->vf_id); - ice_vsi_stop_rx_rings(vsi); - 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(vsi->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_link_state - Inform all VFs on a PF of link status - * @pf: pointer to the PF structure - */ -void ice_vc_notify_link_state(struct ice_pf *pf) -{ - int i; - - for (i = 0; i < pf->num_alloc_vfs; i++) - ice_vc_notify_vf_link_state(&pf->vf[i]); -} - -/** - * 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 VFLR 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_lan_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) { - struct ice_q_vector *q_vector; - - if (!ice_vc_isvalid_q_id(vf, vsi_id, vsi_q_id)) { - aq_ret = ICE_ERR_PARAM; - goto error_param; - } - q_vector = vsi->q_vectors[i]; - q_vector->num_ring_rx++; - q_vector->rx.itr_idx = map->rxitr_idx; - vsi->rx_rings[vsi_q_id]->q_vector = q_vector; - } - - qmap = map->txq_map; - for_each_set_bit(vsi_q_id, &qmap, ICE_MAX_BASE_QS_PER_VF) { - struct ice_q_vector *q_vector; - - if (!ice_vc_isvalid_q_id(vf, vsi_id, vsi_q_id)) { - aq_ret = ICE_ERR_PARAM; - goto error_param; - } - q_vector = vsi->q_vectors[i]; - q_vector->num_ring_tx++; - q_vector->tx.itr_idx = map->txitr_idx; - vsi->tx_rings[vsi_q_id]->q_vector = q_vector; - } - } - - 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_lan_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++; - - /* 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--; - - /* 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; -} |