// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2022, Intel Corporation. */

#include "ice_virtchnl.h"
#include "ice_vf_lib_private.h"
#include "ice.h"
#include "ice_base.h"
#include "ice_lib.h"
#include "ice_fltr.h"
#include "ice_virtchnl_allowlist.h"
#include "ice_vf_vsi_vlan_ops.h"
#include "ice_vlan.h"
#include "ice_flex_pipe.h"
#include "ice_dcb_lib.h"

#define FIELD_SELECTOR(proto_hdr_field) \
                BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK)

struct ice_vc_hdr_match_type {
        u32 vc_hdr;     /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */
        u32 ice_hdr;    /* ice headers (ICE_FLOW_SEG_HDR_XXX) */
};

static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = {
        {VIRTCHNL_PROTO_HDR_NONE,       ICE_FLOW_SEG_HDR_NONE},
        {VIRTCHNL_PROTO_HDR_ETH,        ICE_FLOW_SEG_HDR_ETH},
        {VIRTCHNL_PROTO_HDR_S_VLAN,     ICE_FLOW_SEG_HDR_VLAN},
        {VIRTCHNL_PROTO_HDR_C_VLAN,     ICE_FLOW_SEG_HDR_VLAN},
        {VIRTCHNL_PROTO_HDR_IPV4,       ICE_FLOW_SEG_HDR_IPV4 |
                                        ICE_FLOW_SEG_HDR_IPV_OTHER},
        {VIRTCHNL_PROTO_HDR_IPV6,       ICE_FLOW_SEG_HDR_IPV6 |
                                        ICE_FLOW_SEG_HDR_IPV_OTHER},
        {VIRTCHNL_PROTO_HDR_TCP,        ICE_FLOW_SEG_HDR_TCP},
        {VIRTCHNL_PROTO_HDR_UDP,        ICE_FLOW_SEG_HDR_UDP},
        {VIRTCHNL_PROTO_HDR_SCTP,       ICE_FLOW_SEG_HDR_SCTP},
        {VIRTCHNL_PROTO_HDR_PPPOE,      ICE_FLOW_SEG_HDR_PPPOE},
        {VIRTCHNL_PROTO_HDR_GTPU_IP,    ICE_FLOW_SEG_HDR_GTPU_IP},
        {VIRTCHNL_PROTO_HDR_GTPU_EH,    ICE_FLOW_SEG_HDR_GTPU_EH},
        {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
                                        ICE_FLOW_SEG_HDR_GTPU_DWN},
        {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
                                        ICE_FLOW_SEG_HDR_GTPU_UP},
        {VIRTCHNL_PROTO_HDR_L2TPV3,     ICE_FLOW_SEG_HDR_L2TPV3},
        {VIRTCHNL_PROTO_HDR_ESP,        ICE_FLOW_SEG_HDR_ESP},
        {VIRTCHNL_PROTO_HDR_AH,         ICE_FLOW_SEG_HDR_AH},
        {VIRTCHNL_PROTO_HDR_PFCP,       ICE_FLOW_SEG_HDR_PFCP_SESSION},
};

struct ice_vc_hash_field_match_type {
        u32 vc_hdr;             /* virtchnl headers
                                 * (VIRTCHNL_PROTO_HDR_XXX)
                                 */
        u32 vc_hash_field;      /* virtchnl hash fields selector
                                 * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX))
                                 */
        u64 ice_hash_field;     /* ice hash fields
                                 * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX))
                                 */
};

static const struct
ice_vc_hash_field_match_type ice_vc_hash_field_list[] = {
        {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC),
                BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)},
        {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
                BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)},
        {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
                ICE_FLOW_HASH_ETH},
        {VIRTCHNL_PROTO_HDR_ETH,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE),
                BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)},
        {VIRTCHNL_PROTO_HDR_S_VLAN,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)},
        {VIRTCHNL_PROTO_HDR_C_VLAN,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
                ICE_FLOW_HASH_IPV4},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
                ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
                ICE_FLOW_HASH_IPV6},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) |
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) |
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
                ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
        {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
        {VIRTCHNL_PROTO_HDR_TCP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
        {VIRTCHNL_PROTO_HDR_TCP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
        {VIRTCHNL_PROTO_HDR_TCP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
                ICE_FLOW_HASH_TCP_PORT},
        {VIRTCHNL_PROTO_HDR_UDP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
        {VIRTCHNL_PROTO_HDR_UDP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
        {VIRTCHNL_PROTO_HDR_UDP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
                ICE_FLOW_HASH_UDP_PORT},
        {VIRTCHNL_PROTO_HDR_SCTP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
        {VIRTCHNL_PROTO_HDR_SCTP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
                BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
        {VIRTCHNL_PROTO_HDR_SCTP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
                ICE_FLOW_HASH_SCTP_PORT},
        {VIRTCHNL_PROTO_HDR_PPPOE,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)},
        {VIRTCHNL_PROTO_HDR_GTPU_IP,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)},
        {VIRTCHNL_PROTO_HDR_L2TPV3,
                FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)},
        {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI),
                BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)},
        {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI),
                BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)},
        {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID),
                BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)},
};

/**
 * 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 virtchnl_status_code v_retval, u8 *msg, u16 msglen)
{
        struct ice_hw *hw = &pf->hw;
        struct ice_vf *vf;
        unsigned int bkt;

        mutex_lock(&pf->vfs.table_lock);
        ice_for_each_vf(pf, bkt, 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);
        }
        mutex_unlock(&pf->vfs.table_lock);
}

/**
 * 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_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
 */
void ice_vc_notify_vf_link_state(struct ice_vf *vf)
{
        struct virtchnl_pf_event pfe = { 0 };
        struct ice_hw *hw = &vf->pf->hw;

        pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
        pfe.severity = PF_EVENT_SEVERITY_INFO;

        if (ice_is_vf_link_up(vf))
                ice_set_pfe_link(vf, &pfe,
                                 hw->port_info->phy.link_info.link_speed, true);
        else
                ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false);

        ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
                              VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe,
                              sizeof(pfe), NULL);
}

/**
 * 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)
{
        struct ice_vf *vf;
        unsigned int bkt;

        mutex_lock(&pf->vfs.table_lock);
        ice_for_each_vf(pf, bkt, vf)
                ice_vc_notify_vf_link_state(vf);
        mutex_unlock(&pf->vfs.table_lock);
}

/**
 * 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 (!ice_has_vfs(pf))
                return;

        pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
        pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
        ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS,
                            (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
}

/**
 * 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
 */
int
ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
                      enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
{
        struct device *dev;
        struct ice_pf *pf;
        int aq_ret;

        pf = vf->pf;
        dev = ice_pf_to_dev(pf);

        aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
                                       msg, msglen, NULL);
        if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
                dev_info(dev, "Unable to send the message to VF %d ret %d aq_err %s\n",
                         vf->vf_id, aq_ret,
                         ice_aq_str(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,
                                     VIRTCHNL_STATUS_SUCCESS, (u8 *)&info,
                                     sizeof(struct virtchnl_version_info));
}

/**
 * ice_vc_get_max_frame_size - get max frame size allowed for VF
 * @vf: VF used to determine max frame size
 *
 * Max frame size is determined based on the current port's max frame size and
 * whether a port VLAN is configured on this VF. The VF is not aware whether
 * it's in a port VLAN so the PF needs to account for this in max frame size
 * checks and sending the max frame size to the VF.
 */
static u16 ice_vc_get_max_frame_size(struct ice_vf *vf)
{
        struct ice_port_info *pi = ice_vf_get_port_info(vf);
        u16 max_frame_size;

        max_frame_size = pi->phy.link_info.max_frame_size;

        if (ice_vf_is_port_vlan_ena(vf))
                max_frame_size -= VLAN_HLEN;

        return max_frame_size;
}

/**
 * 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vf_resource *vfres = NULL;
        struct ice_hw *hw = &vf->pf->hw;
        struct ice_vsi *vsi;
        int len = 0;
        int ret;

        if (ice_check_vf_init(vf)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto err;
        }

        len = sizeof(struct virtchnl_vf_resource);

        vfres = kzalloc(len, GFP_KERNEL);
        if (!vfres) {
                v_ret = VIRTCHNL_STATUS_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 = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto err;
        }

        if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
                /* VLAN offloads based on current device configuration */
                vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN_V2;
        } else if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN) {
                /* allow VF to negotiate VIRTCHNL_VF_OFFLOAD explicitly for
                 * these two conditions, which amounts to guest VLAN filtering
                 * and offloads being based on the inner VLAN or the
                 * inner/single VLAN respectively and don't allow VF to
                 * negotiate VIRTCHNL_VF_OFFLOAD in any other cases
                 */
                if (ice_is_dvm_ena(hw) && ice_vf_is_port_vlan_ena(vf)) {
                        vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
                } else if (!ice_is_dvm_ena(hw) &&
                           !ice_vf_is_port_vlan_ena(vf)) {
                        vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
                        /* configure backward compatible support for VFs that
                         * only support VIRTCHNL_VF_OFFLOAD_VLAN, the PF is
                         * configured in SVM, and no port VLAN is configured
                         */
                        ice_vf_vsi_cfg_svm_legacy_vlan_mode(vsi);
                } else if (ice_is_dvm_ena(hw)) {
                        /* configure software offloaded VLAN support when DVM
                         * is enabled, but no port VLAN is enabled
                         */
                        ice_vf_vsi_cfg_dvm_legacy_vlan_mode(vsi);
                }
        }

        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_FDIR_PF)
                vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF;

        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;

        if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
                vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF;

        if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
                vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;

        vfres->num_vsis = 1;
        /* Tx and Rx queue are equal for VF */
        vfres->num_queue_pairs = vsi->num_txq;
        vfres->max_vectors = vf->pf->vfs.num_msix_per;
        vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
        vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
        vfres->max_mtu = ice_vc_get_max_frame_size(vf);

        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->hw_lan_addr.addr);

        /* match guest capabilities */
        vf->driver_caps = vfres->vf_cap_flags;

        ice_vc_set_caps_allowlist(vf);
        ice_vc_set_working_allowlist(vf);

        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, v_ret,
                                    (u8 *)vfres, len);

        kfree(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_INIT, vf->vf_states))
                ice_reset_vf(vf, 0);
}

/**
 * ice_vc_isvalid_vsi_id
 * @vf: pointer to the VF info
 * @vsi_id: VF relative VSI ID
 *
 * check for the valid VSI ID
 */
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(pf, vsi_id);

        return (vsi && (vsi->vf == vf));
}

/**
 * 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(vf->pf, vsi_id);
        /* allocated Tx and Rx queues should be always equal for VF VSI */
        return (vsi && (qid < vsi->alloc_txq));
}

/**
 * ice_vc_isvalid_ring_len
 * @ring_len: length of ring
 *
 * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
 * or zero
 */
static bool ice_vc_isvalid_ring_len(u16 ring_len)
{
        return ring_len == 0 ||
               (ring_len >= ICE_MIN_NUM_DESC &&
                ring_len <= ICE_MAX_NUM_DESC &&
                !(ring_len % ICE_REQ_DESC_MULTIPLE));
}

/**
 * ice_vc_validate_pattern
 * @vf: pointer to the VF info
 * @proto: virtchnl protocol headers
 *
 * validate the pattern is supported or not.
 *
 * Return: true on success, false on error.
 */
bool
ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
{
        bool is_ipv4 = false;
        bool is_ipv6 = false;
        bool is_udp = false;
        u16 ptype = -1;
        int i = 0;

        while (i < proto->count &&
               proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
                switch (proto->proto_hdr[i].type) {
                case VIRTCHNL_PROTO_HDR_ETH:
                        ptype = ICE_PTYPE_MAC_PAY;
                        break;
                case VIRTCHNL_PROTO_HDR_IPV4:
                        ptype = ICE_PTYPE_IPV4_PAY;
                        is_ipv4 = true;
                        break;
                case VIRTCHNL_PROTO_HDR_IPV6:
                        ptype = ICE_PTYPE_IPV6_PAY;
                        is_ipv6 = true;
                        break;
                case VIRTCHNL_PROTO_HDR_UDP:
                        if (is_ipv4)
                                ptype = ICE_PTYPE_IPV4_UDP_PAY;
                        else if (is_ipv6)
                                ptype = ICE_PTYPE_IPV6_UDP_PAY;
                        is_udp = true;
                        break;
                case VIRTCHNL_PROTO_HDR_TCP:
                        if (is_ipv4)
                                ptype = ICE_PTYPE_IPV4_TCP_PAY;
                        else if (is_ipv6)
                                ptype = ICE_PTYPE_IPV6_TCP_PAY;
                        break;
                case VIRTCHNL_PROTO_HDR_SCTP:
                        if (is_ipv4)
                                ptype = ICE_PTYPE_IPV4_SCTP_PAY;
                        else if (is_ipv6)
                                ptype = ICE_PTYPE_IPV6_SCTP_PAY;
                        break;
                case VIRTCHNL_PROTO_HDR_GTPU_IP:
                case VIRTCHNL_PROTO_HDR_GTPU_EH:
                        if (is_ipv4)
                                ptype = ICE_MAC_IPV4_GTPU;
                        else if (is_ipv6)
                                ptype = ICE_MAC_IPV6_GTPU;
                        goto out;
                case VIRTCHNL_PROTO_HDR_L2TPV3:
                        if (is_ipv4)
                                ptype = ICE_MAC_IPV4_L2TPV3;
                        else if (is_ipv6)
                                ptype = ICE_MAC_IPV6_L2TPV3;
                        goto out;
                case VIRTCHNL_PROTO_HDR_ESP:
                        if (is_ipv4)
                                ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
                                                ICE_MAC_IPV4_ESP;
                        else if (is_ipv6)
                                ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
                                                ICE_MAC_IPV6_ESP;
                        goto out;
                case VIRTCHNL_PROTO_HDR_AH:
                        if (is_ipv4)
                                ptype = ICE_MAC_IPV4_AH;
                        else if (is_ipv6)
                                ptype = ICE_MAC_IPV6_AH;
                        goto out;
                case VIRTCHNL_PROTO_HDR_PFCP:
                        if (is_ipv4)
                                ptype = ICE_MAC_IPV4_PFCP_SESSION;
                        else if (is_ipv6)
                                ptype = ICE_MAC_IPV6_PFCP_SESSION;
                        goto out;
                default:
                        break;
                }
                i++;
        }

out:
        return ice_hw_ptype_ena(&vf->pf->hw, ptype);
}

/**
 * ice_vc_parse_rss_cfg - parses hash fields and headers from
 * a specific virtchnl RSS cfg
 * @hw: pointer to the hardware
 * @rss_cfg: pointer to the virtchnl RSS cfg
 * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*)
 * to configure
 * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure
 *
 * Return true if all the protocol header and hash fields in the RSS cfg could
 * be parsed, else return false
 *
 * This function parses the virtchnl RSS cfg to be the intended
 * hash fields and the intended header for RSS configuration
 */
static bool
ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg,
                     u32 *addl_hdrs, u64 *hash_flds)
{
        const struct ice_vc_hash_field_match_type *hf_list;
        const struct ice_vc_hdr_match_type *hdr_list;
        int i, hf_list_len, hdr_list_len;

        hf_list = ice_vc_hash_field_list;
        hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
        hdr_list = ice_vc_hdr_list;
        hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);

        for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
                struct virtchnl_proto_hdr *proto_hdr =
                                        &rss_cfg->proto_hdrs.proto_hdr[i];
                bool hdr_found = false;
                int j;

                /* Find matched ice headers according to virtchnl headers. */
                for (j = 0; j < hdr_list_len; j++) {
                        struct ice_vc_hdr_match_type hdr_map = hdr_list[j];

                        if (proto_hdr->type == hdr_map.vc_hdr) {
                                *addl_hdrs |= hdr_map.ice_hdr;
                                hdr_found = true;
                        }
                }

                if (!hdr_found)
                        return false;

                /* Find matched ice hash fields according to
                 * virtchnl hash fields.
                 */
                for (j = 0; j < hf_list_len; j++) {
                        struct ice_vc_hash_field_match_type hf_map = hf_list[j];

                        if (proto_hdr->type == hf_map.vc_hdr &&
                            proto_hdr->field_selector == hf_map.vc_hash_field) {
                                *hash_flds |= hf_map.ice_hash_field;
                                break;
                        }
                }
        }

        return true;
}

/**
 * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
 * RSS offloads
 * @caps: VF driver negotiated capabilities
 *
 * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
 * else return false
 */
static bool ice_vf_adv_rss_offload_ena(u32 caps)
{
        return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
}

/**
 * ice_vc_handle_rss_cfg
 * @vf: pointer to the VF info
 * @msg: pointer to the message buffer
 * @add: add a RSS config if true, otherwise delete a RSS config
 *
 * This function adds/deletes a RSS config
 */
static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
{
        u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
        struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct device *dev = ice_pf_to_dev(vf->pf);
        struct ice_hw *hw = &vf->pf->hw;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
                dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
                        vf->vf_id);
                v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
                goto error_param;
        }

        if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
                dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
                        vf->vf_id);
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
            rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
            rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
                dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
                        vf->vf_id);
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
                struct ice_vsi_ctx *ctx;
                u8 lut_type, hash_type;
                int status;

                lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
                hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_XOR :
                                ICE_AQ_VSI_Q_OPT_RSS_TPLZ;

                ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
                if (!ctx) {
                        v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
                        goto error_param;
                }

                ctx->info.q_opt_rss = ((lut_type <<
                                        ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
                                       ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
                                       (hash_type &
                                        ICE_AQ_VSI_Q_OPT_RSS_HASH_M);

                /* Preserve existing queueing option setting */
                ctx->info.q_opt_rss |= (vsi->info.q_opt_rss &
                                          ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M);
                ctx->info.q_opt_tc = vsi->info.q_opt_tc;
                ctx->info.q_opt_flags = vsi->info.q_opt_rss;

                ctx->info.valid_sections =
                                cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);

                status = ice_update_vsi(hw, vsi->idx, ctx, NULL);
                if (status) {
                        dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n",
                                status, ice_aq_str(hw->adminq.sq_last_status));
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                } else {
                        vsi->info.q_opt_rss = ctx->info.q_opt_rss;
                }

                kfree(ctx);
        } else {
                u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
                u64 hash_flds = ICE_HASH_INVALID;

                if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs,
                                          &hash_flds)) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                if (add) {
                        if (ice_add_rss_cfg(hw, vsi->idx, hash_flds,
                                            addl_hdrs)) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n",
                                        vsi->vsi_num, v_ret);
                        }
                } else {
                        int status;

                        status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds,
                                                 addl_hdrs);
                        /* We just ignore -ENOENT, because if two configurations
                         * share the same profile remove one of them actually
                         * removes both, since the profile is deleted.
                         */
                        if (status && status != -ENOENT) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n",
                                        vf->vf_id, status);
                        }
                }
        }

error_param:
        return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
}

/**
 * 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_rss_key *vrk =
                (struct virtchnl_rss_key *)msg;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (ice_set_rss_key(vsi, vrk->key))
                v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_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;
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
                v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
                                     NULL, 0);
}

/**
 * ice_vc_cfg_promiscuous_mode_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 *
 * called from the VF to configure VF VSIs promiscuous mode
 */
static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        bool rm_promisc, alluni = false, allmulti = false;
        struct virtchnl_promisc_info *info =
            (struct virtchnl_promisc_info *)msg;
        struct ice_vsi_vlan_ops *vlan_ops;
        int mcast_err = 0, ucast_err = 0;
        struct ice_pf *pf = vf->pf;
        struct ice_vsi *vsi;
        struct device *dev;
        int ret = 0;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        dev = ice_pf_to_dev(pf);
        if (!ice_is_vf_trusted(vf)) {
                dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",

                        vf->vf_id);
                /* Leave v_ret alone, lie to the VF on purpose. */
                goto error_param;
        }

        if (info->flags & FLAG_VF_UNICAST_PROMISC)
                alluni = true;

        if (info->flags & FLAG_VF_MULTICAST_PROMISC)
                allmulti = true;

        rm_promisc = !allmulti && !alluni;

        vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
        if (rm_promisc)
                ret = vlan_ops->ena_rx_filtering(vsi);
        else
                ret = vlan_ops->dis_rx_filtering(vsi);
        if (ret) {
                dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
                bool set_dflt_vsi = alluni || allmulti;

                if (set_dflt_vsi && !ice_is_dflt_vsi_in_use(pf->first_sw))
                        /* only attempt to set the default forwarding VSI if
                         * it's not currently set
                         */
                        ret = ice_set_dflt_vsi(pf->first_sw, vsi);
                else if (!set_dflt_vsi &&
                         ice_is_vsi_dflt_vsi(pf->first_sw, vsi))
                        /* only attempt to free the default forwarding VSI if we
                         * are the owner
                         */
                        ret = ice_clear_dflt_vsi(pf->first_sw);

                if (ret) {
                        dev_err(dev, "%sable VF %d as the default VSI failed, error %d\n",
                                set_dflt_vsi ? "en" : "dis", vf->vf_id, ret);
                        v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
                        goto error_param;
                }
        } else {
                u8 mcast_m, ucast_m;

                if (ice_vf_is_port_vlan_ena(vf) ||
                    ice_vsi_has_non_zero_vlans(vsi)) {
                        mcast_m = ICE_MCAST_VLAN_PROMISC_BITS;
                        ucast_m = ICE_UCAST_VLAN_PROMISC_BITS;
                } else {
                        mcast_m = ICE_MCAST_PROMISC_BITS;
                        ucast_m = ICE_UCAST_PROMISC_BITS;
                }

                if (alluni)
                        ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m);
                else
                        ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m);

                if (allmulti)
                        mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
                else
                        mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);

                if (ucast_err || mcast_err)
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
        }

        if (!mcast_err) {
                if (allmulti &&
                    !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
                        dev_info(dev, "VF %u successfully set multicast promiscuous mode\n",
                                 vf->vf_id);
                else if (!allmulti &&
                         test_and_clear_bit(ICE_VF_STATE_MC_PROMISC,
                                            vf->vf_states))
                        dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n",
                                 vf->vf_id);
        }

        if (!ucast_err) {
                if (alluni &&
                    !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
                        dev_info(dev, "VF %u successfully set unicast promiscuous mode\n",
                                 vf->vf_id);
                else if (!alluni &&
                         test_and_clear_bit(ICE_VF_STATE_UC_PROMISC,
                                            vf->vf_states))
                        dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n",
                                 vf->vf_id);
        }

error_param:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
                                     v_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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_queue_select *vqs =
                (struct virtchnl_queue_select *)msg;
        struct ice_eth_stats stats = { 0 };
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        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, v_ret,
                                     (u8 *)&stats, sizeof(stats));
}

/**
 * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL
 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
 *
 * Return true on successful validation, else false
 */
static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
{
        if ((!vqs->rx_queues && !vqs->tx_queues) ||
            vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) ||
            vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
                return false;

        return true;
}

/**
 * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
 * @vsi: VSI of the VF to configure
 * @q_idx: VF queue index used to determine the queue in the PF's space
 */
static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
{
        struct ice_hw *hw = &vsi->back->hw;
        u32 pfq = vsi->txq_map[q_idx];
        u32 reg;

        reg = rd32(hw, QINT_TQCTL(pfq));

        /* MSI-X index 0 in the VF's space is always for the OICR, which means
         * this is most likely a poll mode VF driver, so don't enable an
         * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
         */
        if (!(reg & QINT_TQCTL_MSIX_INDX_M))
                return;

        wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
}

/**
 * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
 * @vsi: VSI of the VF to configure
 * @q_idx: VF queue index used to determine the queue in the PF's space
 */
static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
{
        struct ice_hw *hw = &vsi->back->hw;
        u32 pfq = vsi->rxq_map[q_idx];
        u32 reg;

        reg = rd32(hw, QINT_RQCTL(pfq));

        /* MSI-X index 0 in the VF's space is always for the OICR, which means
         * this is most likely a poll mode VF driver, so don't enable an
         * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
         */
        if (!(reg & QINT_RQCTL_MSIX_INDX_M))
                return;

        wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
}

/**
 * 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_queue_select *vqs =
            (struct virtchnl_queue_select *)msg;
        struct ice_vsi *vsi;
        unsigned long q_map;
        u16 vf_q_id;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_validate_vqs_bitmaps(vqs)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_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
         */
        q_map = vqs->rx_queues;
        for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
                if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                /* Skip queue if enabled */
                if (test_bit(vf_q_id, vf->rxq_ena))
                        continue;

                if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) {
                        dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n",
                                vf_q_id, vsi->vsi_num);
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
                set_bit(vf_q_id, vf->rxq_ena);
        }

        q_map = vqs->tx_queues;
        for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
                if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                /* Skip queue if enabled */
                if (test_bit(vf_q_id, vf->txq_ena))
                        continue;

                ice_vf_ena_txq_interrupt(vsi, vf_q_id);
                set_bit(vf_q_id, vf->txq_ena);
        }

        /* Set flag to indicate that queues are enabled */
        if (v_ret == VIRTCHNL_STATUS_SUCCESS)
                set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);

error_param:
        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
                                     NULL, 0);
}

/**
 * ice_vf_vsi_dis_single_txq - disable a single Tx queue
 * @vf: VF to disable queue for
 * @vsi: VSI for the VF
 * @q_id: VF relative (0-based) queue ID
 *
 * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
 * disabled then clear q_id bit in the enabled queues bitmap and return
 * success. Otherwise return error.
 */
static int
ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
{
        struct ice_txq_meta txq_meta = { 0 };
        struct ice_tx_ring *ring;
        int err;

        if (!test_bit(q_id, vf->txq_ena))
                dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
                        q_id, vsi->vsi_num);

        ring = vsi->tx_rings[q_id];
        if (!ring)
                return -EINVAL;

        ice_fill_txq_meta(vsi, ring, &txq_meta);

        err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
        if (err) {
                dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
                        q_id, vsi->vsi_num);
                return err;
        }

        /* Clear enabled queues flag */
        clear_bit(q_id, vf->txq_ena);

        return 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_queue_select *vqs =
            (struct virtchnl_queue_select *)msg;
        struct ice_vsi *vsi;
        unsigned long q_map;
        u16 vf_q_id;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
            !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_validate_vqs_bitmaps(vqs)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (vqs->tx_queues) {
                q_map = vqs->tx_queues;

                for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
                        if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }

                        if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }
                }
        }

        q_map = vqs->rx_queues;
        /* speed up Rx queue disable by batching them if possible */
        if (q_map &&
            bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) {
                if (ice_vsi_stop_all_rx_rings(vsi)) {
                        dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n",
                                vsi->vsi_num);
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
        } else if (q_map) {
                for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
                        if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }

                        /* Skip queue if not enabled */
                        if (!test_bit(vf_q_id, vf->rxq_ena))
                                continue;

                        if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id,
                                                     true)) {
                                dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n",
                                        vf_q_id, vsi->vsi_num);
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }

                        /* Clear enabled queues flag */
                        clear_bit(vf_q_id, vf->rxq_ena);
                }
        }

        /* Clear enabled queues flag */
        if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf))
                clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);

error_param:
        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
                                     NULL, 0);
}

/**
 * ice_cfg_interrupt
 * @vf: pointer to the VF info
 * @vsi: the VSI being configured
 * @vector_id: vector ID
 * @map: vector map for mapping vectors to queues
 * @q_vector: structure for interrupt vector
 * configure the IRQ to queue map
 */
static int
ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
                  struct virtchnl_vector_map *map,
                  struct ice_q_vector *q_vector)
{
        u16 vsi_q_id, vsi_q_id_idx;
        unsigned long qmap;

        q_vector->num_ring_rx = 0;
        q_vector->num_ring_tx = 0;

        qmap = map->rxq_map;
        for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
                vsi_q_id = vsi_q_id_idx;

                if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
                        return VIRTCHNL_STATUS_ERR_PARAM;

                q_vector->num_ring_rx++;
                q_vector->rx.itr_idx = map->rxitr_idx;
                vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
                ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
                                      q_vector->rx.itr_idx);
        }

        qmap = map->txq_map;
        for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
                vsi_q_id = vsi_q_id_idx;

                if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
                        return VIRTCHNL_STATUS_ERR_PARAM;

                q_vector->num_ring_tx++;
                q_vector->tx.itr_idx = map->txitr_idx;
                vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
                ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
                                      q_vector->tx.itr_idx);
        }

        return VIRTCHNL_STATUS_SUCCESS;
}

/**
 * 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        u16 num_q_vectors_mapped, vsi_id, vector_id;
        struct virtchnl_irq_map_info *irqmap_info;
        struct virtchnl_vector_map *map;
        struct ice_pf *pf = vf->pf;
        struct ice_vsi *vsi;
        int i;

        irqmap_info = (struct virtchnl_irq_map_info *)msg;
        num_q_vectors_mapped = irqmap_info->num_vectors;

        /* Check to make sure number of VF vectors mapped is not greater than
         * number of VF vectors originally allocated, and check that
         * there is actually at least a single VF queue vector mapped
         */
        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
            pf->vfs.num_msix_per < num_q_vectors_mapped ||
            !num_q_vectors_mapped) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        for (i = 0; i < num_q_vectors_mapped; i++) {
                struct ice_q_vector *q_vector;

                map = &irqmap_info->vecmap[i];

                vector_id = map->vector_id;
                vsi_id = map->vsi_id;
                /* vector_id is always 0-based for each VF, and can never be
                 * larger than or equal to the max allowed interrupts per VF
                 */
                if (!(vector_id < pf->vfs.num_msix_per) ||
                    !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
                    (!vector_id && (map->rxq_map || map->txq_map))) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                /* No need to map VF miscellaneous or rogue vector */
                if (!vector_id)
                        continue;

                /* Subtract non queue vector from vector_id passed by VF
                 * to get actual number of VSI queue vector array index
                 */
                q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
                if (!q_vector) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto error_param;
                }

                /* lookout for the invalid queue index */
                v_ret = (enum virtchnl_status_code)
                        ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
                if (v_ret)
                        goto error_param;
        }

error_param:
        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_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;
        struct ice_pf *pf = vf->pf;
        struct ice_vsi *vsi;
        int i = -1, q_idx;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
                goto error_param;

        if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id))
                goto error_param;

        vsi = ice_get_vf_vsi(vf);
        if (!vsi)
                goto error_param;

        if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
            qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
                dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
                        vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
                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 ||
                    qpi->txq.headwb_enabled ||
                    !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
                    !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
                    !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
                        goto error_param;
                }

                q_idx = qpi->rxq.queue_id;

                /* make sure selected "q_idx" is in valid range of queues
                 * for selected "vsi"
                 */
                if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
                        goto error_param;
                }

                /* copy Tx queue info from VF into VSI */
                if (qpi->txq.ring_len > 0) {
                        vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
                        vsi->tx_rings[i]->count = qpi->txq.ring_len;

                        /* Disable any existing queue first */
                        if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx))
                                goto error_param;

                        /* Configure a queue with the requested settings */
                        if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
                                dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n",
                                         vf->vf_id, i);
                                goto error_param;
                        }
                }

                /* copy Rx queue info from VF into VSI */
                if (qpi->rxq.ring_len > 0) {
                        u16 max_frame_size = ice_vc_get_max_frame_size(vf);

                        vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
                        vsi->rx_rings[i]->count = qpi->rxq.ring_len;

                        if (qpi->rxq.databuffer_size != 0 &&
                            (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
                             qpi->rxq.databuffer_size < 1024))
                                goto error_param;
                        vsi->rx_buf_len = qpi->rxq.databuffer_size;
                        vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
                        if (qpi->rxq.max_pkt_size > max_frame_size ||
                            qpi->rxq.max_pkt_size < 64)
                                goto error_param;

                        vsi->max_frame = qpi->rxq.max_pkt_size;
                        /* add space for the port VLAN since the VF driver is
                         * not expected to account for it in the MTU
                         * calculation
                         */
                        if (ice_vf_is_port_vlan_ena(vf))
                                vsi->max_frame += VLAN_HLEN;

                        if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
                                dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n",
                                         vf->vf_id, i);
                                goto error_param;
                        }
                }
        }

        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
                                     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
error_param:
        /* disable whatever we can */
        for (; i >= 0; i--) {
                if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true))
                        dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n",
                                vf->vf_id, i);
                if (ice_vf_vsi_dis_single_txq(vf, vsi, i))
                        dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
                                vf->vf_id, i);
        }

        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
                                     VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
}

/**
 * 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_ether_addr_type - get type of virtchnl_ether_addr
 * @vc_ether_addr: used to extract the type
 */
static u8
ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
{
        return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
}

/**
 * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
 */
static bool
ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
{
        u8 type = ice_vc_ether_addr_type(vc_ether_addr);

        return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
}

/**
 * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
 *
 * This function should only be called when the MAC address in
 * virtchnl_ether_addr is a valid unicast MAC
 */
static bool
ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
{
        u8 type = ice_vc_ether_addr_type(vc_ether_addr);

        return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
}

/**
 * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
 * @vf: VF to update
 * @vc_ether_addr: structure from VIRTCHNL with MAC to add
 */
static void
ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
{
        u8 *mac_addr = vc_ether_addr->addr;

        if (!is_valid_ether_addr(mac_addr))
                return;

        /* only allow legacy VF drivers to set the device and hardware MAC if it
         * is zero and allow new VF drivers to set the hardware MAC if the type
         * was correctly specified over VIRTCHNL
         */
        if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
             is_zero_ether_addr(vf->hw_lan_addr.addr)) ||
            ice_is_vc_addr_primary(vc_ether_addr)) {
                ether_addr_copy(vf->dev_lan_addr.addr, mac_addr);
                ether_addr_copy(vf->hw_lan_addr.addr, mac_addr);
        }

        /* hardware and device MACs are already set, but its possible that the
         * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
         * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
         * away for the legacy VF driver case as it will be updated in the
         * delete flow for this case
         */
        if (ice_is_vc_addr_legacy(vc_ether_addr)) {
                ether_addr_copy(vf->legacy_last_added_umac.addr,
                                mac_addr);
                vf->legacy_last_added_umac.time_modified = jiffies;
        }
}

/**
 * ice_vc_add_mac_addr - attempt to add the MAC address passed in
 * @vf: pointer to the VF info
 * @vsi: pointer to the VF's VSI
 * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
 */
static int
ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
                    struct virtchnl_ether_addr *vc_ether_addr)
{
        struct device *dev = ice_pf_to_dev(vf->pf);
        u8 *mac_addr = vc_ether_addr->addr;
        int ret;

        /* device MAC already added */
        if (ether_addr_equal(mac_addr, vf->dev_lan_addr.addr))
                return 0;

        if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
                dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
                return -EPERM;
        }

        ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
        if (ret == -EEXIST) {
                dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
                        vf->vf_id);
                /* don't return since we might need to update
                 * the primary MAC in ice_vfhw_mac_add() below
                 */
        } else if (ret) {
                dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n",
                        mac_addr, vf->vf_id, ret);
                return ret;
        } else {
                vf->num_mac++;
        }

        ice_vfhw_mac_add(vf, vc_ether_addr);

        return ret;
}

/**
 * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
 * @last_added_umac: structure used to check expiration
 */
static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
{
#define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME    msecs_to_jiffies(3000)
        return time_is_before_jiffies(last_added_umac->time_modified +
                                      ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
}

/**
 * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF
 * @vf: VF to update
 * @vc_ether_addr: structure from VIRTCHNL with MAC to check
 *
 * only update cached hardware MAC for legacy VF drivers on delete
 * because we cannot guarantee order/type of MAC from the VF driver
 */
static void
ice_update_legacy_cached_mac(struct ice_vf *vf,
                             struct virtchnl_ether_addr *vc_ether_addr)
{
        if (!ice_is_vc_addr_legacy(vc_ether_addr) ||
            ice_is_legacy_umac_expired(&vf->legacy_last_added_umac))
                return;

        ether_addr_copy(vf->dev_lan_addr.addr, vf->legacy_last_added_umac.addr);
        ether_addr_copy(vf->hw_lan_addr.addr, vf->legacy_last_added_umac.addr);
}

/**
 * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
 * @vf: VF to update
 * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
 */
static void
ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
{
        u8 *mac_addr = vc_ether_addr->addr;

        if (!is_valid_ether_addr(mac_addr) ||
            !ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
                return;

        /* allow the device MAC to be repopulated in the add flow and don't
         * clear the hardware MAC (i.e. hw_lan_addr.addr) here as that is meant
         * to be persistent on VM reboot and across driver unload/load, which
         * won't work if we clear the hardware MAC here
         */
        eth_zero_addr(vf->dev_lan_addr.addr);

        ice_update_legacy_cached_mac(vf, vc_ether_addr);
}

/**
 * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
 * @vf: pointer to the VF info
 * @vsi: pointer to the VF's VSI
 * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
 */
static int
ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
                    struct virtchnl_ether_addr *vc_ether_addr)
{
        struct device *dev = ice_pf_to_dev(vf->pf);
        u8 *mac_addr = vc_ether_addr->addr;
        int status;

        if (!ice_can_vf_change_mac(vf) &&
            ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
                return 0;

        status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
        if (status == -ENOENT) {
                dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
                        vf->vf_id);
                return -ENOENT;
        } else if (status) {
                dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n",
                        mac_addr, vf->vf_id, status);
                return -EIO;
        }

        ice_vfhw_mac_del(vf, vc_ether_addr);

        vf->num_mac--;

        return 0;
}

/**
 * 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)
{
        int (*ice_vc_cfg_mac)
                (struct ice_vf *vf, struct ice_vsi *vsi,
                 struct virtchnl_ether_addr *virtchnl_ether_addr);
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_ether_addr_list *al =
            (struct virtchnl_ether_addr_list *)msg;
        struct ice_pf *pf = vf->pf;
        enum virtchnl_ops vc_op;
        struct ice_vsi *vsi;
        int i;

        if (set) {
                vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
                ice_vc_cfg_mac = ice_vc_add_mac_addr;
        } else {
                vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
                ice_vc_cfg_mac = ice_vc_del_mac_addr;
        }

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
            !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto handle_mac_exit;
        }

        /* If this VF is not privileged, then we can't add more than a
         * limited number of addresses. Check to make sure that the
         * additions do not push us over the limit.
         */
        if (set && !ice_is_vf_trusted(vf) &&
            (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
                dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n",
                        vf->vf_id);
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto handle_mac_exit;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto handle_mac_exit;
        }

        for (i = 0; i < al->num_elements; i++) {
                u8 *mac_addr = al->list[i].addr;
                int result;

                if (is_broadcast_ether_addr(mac_addr) ||
                    is_zero_ether_addr(mac_addr))
                        continue;

                result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
                if (result == -EEXIST || result == -ENOENT) {
                        continue;
                } else if (result) {
                        v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
                        goto handle_mac_exit;
                }
        }

handle_mac_exit:
        /* send the response to the VF */
        return ice_vc_send_msg_to_vf(vf, vc_op, v_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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vf_res_request *vfres =
                (struct virtchnl_vf_res_request *)msg;
        u16 req_queues = vfres->num_queue_pairs;
        struct ice_pf *pf = vf->pf;
        u16 max_allowed_vf_queues;
        u16 tx_rx_queue_left;
        struct device *dev;
        u16 cur_queues;

        dev = ice_pf_to_dev(pf);
        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        cur_queues = vf->num_vf_qs;
        tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
                                 ice_get_avail_rxq_count(pf));
        max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
        if (!req_queues) {
                dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
                        vf->vf_id);
        } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
                dev_err(dev, "VF %d tried to request more than %d queues.\n",
                        vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
                vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
        } else if (req_queues > cur_queues &&
                   req_queues - cur_queues > tx_rx_queue_left) {
                dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
                         vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
                vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
                                               ICE_MAX_RSS_QS_PER_VF);
        } else {
                /* request is successful, then reset VF */
                vf->num_req_qs = req_queues;
                ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
                dev_info(dev, "VF %d granted request of %u 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,
                                     v_ret, (u8 *)vfres, sizeof(*vfres));
}

/**
 * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
 * @caps: VF driver negotiated capabilities
 *
 * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
 */
static bool ice_vf_vlan_offload_ena(u32 caps)
{
        return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
}

/**
 * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed
 * @vf: VF used to determine if VLAN promiscuous config is allowed
 */
static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf)
{
        if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
             test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
            test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags))
                return true;

        return false;
}

/**
 * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN
 * @vsi: VF's VSI used to enable VLAN promiscuous mode
 * @vlan: VLAN used to enable VLAN promiscuous
 *
 * This function should only be called if VLAN promiscuous mode is allowed,
 * which can be determined via ice_is_vlan_promisc_allowed().
 */
static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
{
        u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
        int status;

        status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
                                          vlan->vid);
        if (status && status != -EEXIST)
                return status;

        return 0;
}

/**
 * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN
 * @vsi: VF's VSI used to disable VLAN promiscuous mode for
 * @vlan: VLAN used to disable VLAN promiscuous
 *
 * This function should only be called if VLAN promiscuous mode is allowed,
 * which can be determined via ice_is_vlan_promisc_allowed().
 */
static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
{
        u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
        int status;

        status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
                                            vlan->vid);
        if (status && status != -ENOENT)
                return status;

        return 0;
}

/**
 * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters
 * @vf: VF to check against
 * @vsi: VF's VSI
 *
 * If the VF is trusted then the VF is allowed to add as many VLANs as it
 * wants to, so return false.
 *
 * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max
 * allowed VLANs for an untrusted VF. Return the result of this comparison.
 */
static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi)
{
        if (ice_is_vf_trusted(vf))
                return false;

#define ICE_VF_ADDED_VLAN_ZERO_FLTRS    1
        return ((ice_vsi_num_non_zero_vlans(vsi) +
                ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF);
}

/**
 * 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)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_filter_list *vfl =
            (struct virtchnl_vlan_filter_list *)msg;
        struct ice_pf *pf = vf->pf;
        bool vlan_promisc = false;
        struct ice_vsi *vsi;
        struct device *dev;
        int status = 0;
        int i;

        dev = ice_pf_to_dev(pf);
        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        for (i = 0; i < vfl->num_elements; i++) {
                if (vfl->vlan_id[i] >= VLAN_N_VID) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        dev_err(dev, "invalid VF VLAN id %d\n",
                                vfl->vlan_id[i]);
                        goto error_param;
                }
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (add_v && ice_vf_has_max_vlans(vf, vsi)) {
                dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
                         vf->vf_id);
                /* There is no need to let VF know about being not trusted,
                 * so we can just return success message here
                 */
                goto error_param;
        }

        /* in DVM a VF can add/delete inner VLAN filters when
         * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM
         */
        if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        /* in DVM VLAN promiscuous is based on the outer VLAN, which would be
         * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only
         * allow vlan_promisc = true in SVM and if no port VLAN is configured
         */
        vlan_promisc = ice_is_vlan_promisc_allowed(vf) &&
                !ice_is_dvm_ena(&pf->hw) &&
                !ice_vf_is_port_vlan_ena(vf);

        if (add_v) {
                for (i = 0; i < vfl->num_elements; i++) {
                        u16 vid = vfl->vlan_id[i];
                        struct ice_vlan vlan;

                        if (ice_vf_has_max_vlans(vf, vsi)) {
                                dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
                                         vf->vf_id);
                                /* There is no need to let VF know about being
                                 * not trusted, so we can just return success
                                 * message here as well.
                                 */
                                goto error_param;
                        }

                        /* we add VLAN 0 by default for each VF so we can enable
                         * Tx VLAN anti-spoof without triggering MDD events so
                         * we don't need to add it again here
                         */
                        if (!vid)
                                continue;

                        vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
                        status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan);
                        if (status) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }

                        /* Enable VLAN filtering on first non-zero VLAN */
                        if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) {
                                if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) {
                                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                        dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
                                                vid, status);
                                        goto error_param;
                                }
                        } else if (vlan_promisc) {
                                status = ice_vf_ena_vlan_promisc(vsi, &vlan);
                                if (status) {
                                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                        dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
                                                vid, status);
                                }
                        }
                }
        } else {
                /* In case of non_trusted VF, number of VLAN elements passed
                 * to PF for removal might be greater than number of VLANs
                 * filter programmed for that VF - So, use actual number of
                 * VLANS added earlier with add VLAN opcode. In order to avoid
                 * removing VLAN that doesn't exist, which result to sending
                 * erroneous failed message back to the VF
                 */
                int num_vf_vlan;

                num_vf_vlan = vsi->num_vlan;
                for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
                        u16 vid = vfl->vlan_id[i];
                        struct ice_vlan vlan;

                        /* we add VLAN 0 by default for each VF so we can enable
                         * Tx VLAN anti-spoof without triggering MDD events so
                         * we don't want a VIRTCHNL request to remove it
                         */
                        if (!vid)
                                continue;

                        vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
                        status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan);
                        if (status) {
                                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                                goto error_param;
                        }

                        /* Disable VLAN filtering when only VLAN 0 is left */
                        if (!ice_vsi_has_non_zero_vlans(vsi))
                                vsi->inner_vlan_ops.dis_rx_filtering(vsi);

                        if (vlan_promisc)
                                ice_vf_dis_vlan_promisc(vsi, &vlan);
                }
        }

error_param:
        /* send the response to the VF */
        if (add_v)
                return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
                                             NULL, 0);
        else
                return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_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 virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;

error_param:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
                                     v_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 virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto error_param;
        }

        if (vsi->inner_vlan_ops.dis_stripping(vsi))
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;

error_param:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
                                     v_ret, NULL, 0);
}

/**
 * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
 * @vf: VF to enable/disable VLAN stripping for on initialization
 *
 * Set the default for VLAN stripping based on whether a port VLAN is configured
 * and the current VLAN mode of the device.
 */
static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
{
        struct ice_vsi *vsi = ice_get_vf_vsi(vf);

        if (!vsi)
                return -EINVAL;

        /* don't modify stripping if port VLAN is configured in SVM since the
         * port VLAN is based on the inner/single VLAN in SVM
         */
        if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw))
                return 0;

        if (ice_vf_vlan_offload_ena(vf->driver_caps))
                return vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q);
        else
                return vsi->inner_vlan_ops.dis_stripping(vsi);
}

static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf)
{
        if (vf->trusted)
                return VLAN_N_VID;
        else
                return ICE_MAX_VLAN_PER_VF;
}

/**
 * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used
 * @vf: VF that being checked for
 *
 * When the device is in double VLAN mode, check whether or not the outer VLAN
 * is allowed.
 */
static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf)
{
        if (ice_vf_is_port_vlan_ena(vf))
                return true;

        return false;
}

/**
 * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM
 * @vf: VF that capabilities are being set for
 * @caps: VLAN capabilities to populate
 *
 * Determine VLAN capabilities support based on whether a port VLAN is
 * configured. If a port VLAN is configured then the VF should use the inner
 * filtering/offload capabilities since the port VLAN is using the outer VLAN
 * capabilies.
 */
static void
ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
{
        struct virtchnl_vlan_supported_caps *supported_caps;

        if (ice_vf_outer_vlan_not_allowed(vf)) {
                /* until support for inner VLAN filtering is added when a port
                 * VLAN is configured, only support software offloaded inner
                 * VLANs when a port VLAN is confgured in DVM
                 */
                supported_caps = &caps->filtering.filtering_support;
                supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;

                supported_caps = &caps->offloads.stripping_support;
                supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                supported_caps = &caps->offloads.insertion_support;
                supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
                caps->offloads.ethertype_match =
                        VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
        } else {
                supported_caps = &caps->filtering.filtering_support;
                supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
                supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_88A8 |
                                        VIRTCHNL_VLAN_ETHERTYPE_9100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_AND;
                caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                                 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
                                                 VIRTCHNL_VLAN_ETHERTYPE_9100;

                supported_caps = &caps->offloads.stripping_support;
                supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_88A8 |
                                        VIRTCHNL_VLAN_ETHERTYPE_9100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_XOR |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2;

                supported_caps = &caps->offloads.insertion_support;
                supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_88A8 |
                                        VIRTCHNL_VLAN_ETHERTYPE_9100 |
                                        VIRTCHNL_VLAN_ETHERTYPE_XOR |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2;

                caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;

                caps->offloads.ethertype_match =
                        VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
        }

        caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
}

/**
 * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM
 * @vf: VF that capabilities are being set for
 * @caps: VLAN capabilities to populate
 *
 * Determine VLAN capabilities support based on whether a port VLAN is
 * configured. If a port VLAN is configured then the VF does not have any VLAN
 * filtering or offload capabilities since the port VLAN is using the inner VLAN
 * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner
 * VLAN fitlering and offload capabilities.
 */
static void
ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
{
        struct virtchnl_vlan_supported_caps *supported_caps;

        if (ice_vf_is_port_vlan_ena(vf)) {
                supported_caps = &caps->filtering.filtering_support;
                supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                supported_caps = &caps->offloads.stripping_support;
                supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                supported_caps = &caps->offloads.insertion_support;
                supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED;
                caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED;
                caps->filtering.max_filters = 0;
        } else {
                supported_caps = &caps->filtering.filtering_support;
                supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
                caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;

                supported_caps = &caps->offloads.stripping_support;
                supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                supported_caps = &caps->offloads.insertion_support;
                supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
                                        VIRTCHNL_VLAN_TOGGLE |
                                        VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
                supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;

                caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
                caps->offloads.ethertype_match =
                        VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
                caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
        }
}

/**
 * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities
 * @vf: VF to determine VLAN capabilities for
 *
 * This will only be called if the VF and PF successfully negotiated
 * VIRTCHNL_VF_OFFLOAD_VLAN_V2.
 *
 * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN
 * is configured or not.
 */
static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_caps *caps = NULL;
        int err, len = 0;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        caps = kzalloc(sizeof(*caps), GFP_KERNEL);
        if (!caps) {
                v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
                goto out;
        }
        len = sizeof(*caps);

        if (ice_is_dvm_ena(&vf->pf->hw))
                ice_vc_set_dvm_caps(vf, caps);
        else
                ice_vc_set_svm_caps(vf, caps);

        /* store negotiated caps to prevent invalid VF messages */
        memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps));

out:
        err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
                                    v_ret, (u8 *)caps, len);
        kfree(caps);
        return err;
}

/**
 * ice_vc_validate_vlan_tpid - validate VLAN TPID
 * @filtering_caps: negotiated/supported VLAN filtering capabilities
 * @tpid: VLAN TPID used for validation
 *
 * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against
 * the negotiated/supported filtering caps to see if the VLAN TPID is valid.
 */
static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid)
{
        enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED;

        switch (tpid) {
        case ETH_P_8021Q:
                vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100;
                break;
        case ETH_P_8021AD:
                vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8;
                break;
        case ETH_P_QINQ1:
                vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100;
                break;
        }

        if (!(filtering_caps & vlan_ethertype))
                return false;

        return true;
}

/**
 * ice_vc_is_valid_vlan - validate the virtchnl_vlan
 * @vc_vlan: virtchnl_vlan to validate
 *
 * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return
 * false. Otherwise return true.
 */
static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan)
{
        if (!vc_vlan->tci || !vc_vlan->tpid)
                return false;

        return true;
}

/**
 * ice_vc_validate_vlan_filter_list - validate the filter list from the VF
 * @vfc: negotiated/supported VLAN filtering capabilities
 * @vfl: VLAN filter list from VF to validate
 *
 * Validate all of the filters in the VLAN filter list from the VF. If any of
 * the checks fail then return false. Otherwise return true.
 */
static bool
ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc,
                                 struct virtchnl_vlan_filter_list_v2 *vfl)
{
        u16 i;

        if (!vfl->num_elements)
                return false;

        for (i = 0; i < vfl->num_elements; i++) {
                struct virtchnl_vlan_supported_caps *filtering_support =
                        &vfc->filtering_support;
                struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
                struct virtchnl_vlan *outer = &vlan_fltr->outer;
                struct virtchnl_vlan *inner = &vlan_fltr->inner;

                if ((ice_vc_is_valid_vlan(outer) &&
                     filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) ||
                    (ice_vc_is_valid_vlan(inner) &&
                     filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED))
                        return false;

                if ((outer->tci_mask &&
                     !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) ||
                    (inner->tci_mask &&
                     !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK)))
                        return false;

                if (((outer->tci & VLAN_PRIO_MASK) &&
                     !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) ||
                    ((inner->tci & VLAN_PRIO_MASK) &&
                     !(filtering_support->inner & VIRTCHNL_VLAN_PRIO)))
                        return false;

                if ((ice_vc_is_valid_vlan(outer) &&
                     !ice_vc_validate_vlan_tpid(filtering_support->outer,
                                                outer->tpid)) ||
                    (ice_vc_is_valid_vlan(inner) &&
                     !ice_vc_validate_vlan_tpid(filtering_support->inner,
                                                inner->tpid)))
                        return false;
        }

        return true;
}

/**
 * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan
 * @vc_vlan: struct virtchnl_vlan to transform
 */
static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan)
{
        struct ice_vlan vlan = { 0 };

        vlan.prio = (vc_vlan->tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
        vlan.vid = vc_vlan->tci & VLAN_VID_MASK;
        vlan.tpid = vc_vlan->tpid;

        return vlan;
}

/**
 * ice_vc_vlan_action - action to perform on the virthcnl_vlan
 * @vsi: VF's VSI used to perform the action
 * @vlan_action: function to perform the action with (i.e. add/del)
 * @vlan: VLAN filter to perform the action with
 */
static int
ice_vc_vlan_action(struct ice_vsi *vsi,
                   int (*vlan_action)(struct ice_vsi *, struct ice_vlan *),
                   struct ice_vlan *vlan)
{
        int err;

        err = vlan_action(vsi, vlan);
        if (err)
                return err;

        return 0;
}

/**
 * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list
 * @vf: VF used to delete the VLAN(s)
 * @vsi: VF's VSI used to delete the VLAN(s)
 * @vfl: virthchnl filter list used to delete the filters
 */
static int
ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
                 struct virtchnl_vlan_filter_list_v2 *vfl)
{
        bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
        int err;
        u16 i;

        for (i = 0; i < vfl->num_elements; i++) {
                struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
                struct virtchnl_vlan *vc_vlan;

                vc_vlan = &vlan_fltr->outer;
                if (ice_vc_is_valid_vlan(vc_vlan)) {
                        struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);

                        err = ice_vc_vlan_action(vsi,
                                                 vsi->outer_vlan_ops.del_vlan,
                                                 &vlan);
                        if (err)
                                return err;

                        if (vlan_promisc)
                                ice_vf_dis_vlan_promisc(vsi, &vlan);
                }

                vc_vlan = &vlan_fltr->inner;
                if (ice_vc_is_valid_vlan(vc_vlan)) {
                        struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);

                        err = ice_vc_vlan_action(vsi,
                                                 vsi->inner_vlan_ops.del_vlan,
                                                 &vlan);
                        if (err)
                                return err;

                        /* no support for VLAN promiscuous on inner VLAN unless
                         * we are in Single VLAN Mode (SVM)
                         */
                        if (!ice_is_dvm_ena(&vsi->back->hw) && vlan_promisc)
                                ice_vf_dis_vlan_promisc(vsi, &vlan);
                }
        }

        return 0;
}

/**
 * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2
 * @vf: VF the message was received from
 * @msg: message received from the VF
 */
static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
{
        struct virtchnl_vlan_filter_list_v2 *vfl =
                (struct virtchnl_vlan_filter_list_v2 *)msg;
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct ice_vsi *vsi;

        if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering,
                                              vfl)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (ice_vc_del_vlans(vf, vsi, vfl))
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL,
                                     0);
}

/**
 * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list
 * @vf: VF used to add the VLAN(s)
 * @vsi: VF's VSI used to add the VLAN(s)
 * @vfl: virthchnl filter list used to add the filters
 */
static int
ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
                 struct virtchnl_vlan_filter_list_v2 *vfl)
{
        bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
        int err;
        u16 i;

        for (i = 0; i < vfl->num_elements; i++) {
                struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
                struct virtchnl_vlan *vc_vlan;

                vc_vlan = &vlan_fltr->outer;
                if (ice_vc_is_valid_vlan(vc_vlan)) {
                        struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);

                        err = ice_vc_vlan_action(vsi,
                                                 vsi->outer_vlan_ops.add_vlan,
                                                 &vlan);
                        if (err)
                                return err;

                        if (vlan_promisc) {
                                err = ice_vf_ena_vlan_promisc(vsi, &vlan);
                                if (err)
                                        return err;
                        }
                }

                vc_vlan = &vlan_fltr->inner;
                if (ice_vc_is_valid_vlan(vc_vlan)) {
                        struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);

                        err = ice_vc_vlan_action(vsi,
                                                 vsi->inner_vlan_ops.add_vlan,
                                                 &vlan);
                        if (err)
                                return err;

                        /* no support for VLAN promiscuous on inner VLAN unless
                         * we are in Single VLAN Mode (SVM)
                         */
                        if (!ice_is_dvm_ena(&vsi->back->hw) && vlan_promisc) {
                                err = ice_vf_ena_vlan_promisc(vsi, &vlan);
                                if (err)
                                        return err;
                        }
                }
        }

        return 0;
}

/**
 * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF
 * @vsi: VF VSI used to get number of existing VLAN filters
 * @vfc: negotiated/supported VLAN filtering capabilities
 * @vfl: VLAN filter list from VF to validate
 *
 * Validate all of the filters in the VLAN filter list from the VF during the
 * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false.
 * Otherwise return true.
 */
static bool
ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi,
                                     struct virtchnl_vlan_filtering_caps *vfc,
                                     struct virtchnl_vlan_filter_list_v2 *vfl)
{
        u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) +
                vfl->num_elements;

        if (num_requested_filters > vfc->max_filters)
                return false;

        return ice_vc_validate_vlan_filter_list(vfc, vfl);
}

/**
 * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2
 * @vf: VF the message was received from
 * @msg: message received from the VF
 */
static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_filter_list_v2 *vfl =
                (struct virtchnl_vlan_filter_list_v2 *)msg;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_validate_add_vlan_filter_list(vsi,
                                                  &vf->vlan_v2_caps.filtering,
                                                  vfl)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (ice_vc_add_vlans(vf, vsi, vfl))
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL,
                                     0);

}

/**
 * ice_vc_valid_vlan_setting - validate VLAN setting
 * @negotiated_settings: negotiated VLAN settings during VF init
 * @ethertype_setting: ethertype(s) requested for the VLAN setting
 */
static bool
ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting)
{
        if (ethertype_setting && !(negotiated_settings & ethertype_setting))
                return false;

        /* only allow a single VIRTCHNL_VLAN_ETHERTYPE if
         * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported
         */
        if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) &&
            hweight32(ethertype_setting) > 1)
                return false;

        /* ability to modify the VLAN setting was not negotiated */
        if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE))
                return false;

        return true;
}

/**
 * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message
 * @caps: negotiated VLAN settings during VF init
 * @msg: message to validate
 *
 * Used to validate any VLAN virtchnl message sent as a
 * virtchnl_vlan_setting structure. Validates the message against the
 * negotiated/supported caps during VF driver init.
 */
static bool
ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps,
                              struct virtchnl_vlan_setting *msg)
{
        if ((!msg->outer_ethertype_setting &&
             !msg->inner_ethertype_setting) ||
            (!caps->outer && !caps->inner))
                return false;

        if (msg->outer_ethertype_setting &&
            !ice_vc_valid_vlan_setting(caps->outer,
                                       msg->outer_ethertype_setting))
                return false;

        if (msg->inner_ethertype_setting &&
            !ice_vc_valid_vlan_setting(caps->inner,
                                       msg->inner_ethertype_setting))
                return false;

        return true;
}

/**
 * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID
 * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID
 * @tpid: VLAN TPID to populate
 */
static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid)
{
        switch (ethertype_setting) {
        case VIRTCHNL_VLAN_ETHERTYPE_8100:
                *tpid = ETH_P_8021Q;
                break;
        case VIRTCHNL_VLAN_ETHERTYPE_88A8:
                *tpid = ETH_P_8021AD;
                break;
        case VIRTCHNL_VLAN_ETHERTYPE_9100:
                *tpid = ETH_P_QINQ1;
                break;
        default:
                *tpid = 0;
                return -EINVAL;
        }

        return 0;
}

/**
 * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting
 * @vsi: VF's VSI used to enable the VLAN offload
 * @ena_offload: function used to enable the VLAN offload
 * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for
 */
static int
ice_vc_ena_vlan_offload(struct ice_vsi *vsi,
                        int (*ena_offload)(struct ice_vsi *vsi, u16 tpid),
                        u32 ethertype_setting)
{
        u16 tpid;
        int err;

        err = ice_vc_get_tpid(ethertype_setting, &tpid);
        if (err)
                return err;

        err = ena_offload(vsi, tpid);
        if (err)
                return err;

        return 0;
}

#define ICE_L2TSEL_QRX_CONTEXT_REG_IDX  3
#define ICE_L2TSEL_BIT_OFFSET           23
enum ice_l2tsel {
        ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND,
        ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1,
};

/**
 * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI
 * @vsi: VSI used to update l2tsel on
 * @l2tsel: l2tsel setting requested
 *
 * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel.
 * This will modify which descriptor field the first offloaded VLAN will be
 * stripped into.
 */
static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel)
{
        struct ice_hw *hw = &vsi->back->hw;
        u32 l2tsel_bit;
        int i;

        if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND)
                l2tsel_bit = 0;
        else
                l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET);

        for (i = 0; i < vsi->alloc_rxq; i++) {
                u16 pfq = vsi->rxq_map[i];
                u32 qrx_context_offset;
                u32 regval;

                qrx_context_offset =
                        QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq);

                regval = rd32(hw, qrx_context_offset);
                regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET);
                regval |= l2tsel_bit;
                wr32(hw, qrx_context_offset, regval);
        }
}

/**
 * ice_vc_ena_vlan_stripping_v2_msg
 * @vf: VF the message was received from
 * @msg: message received from the VF
 *
 * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
 */
static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_supported_caps *stripping_support;
        struct virtchnl_vlan_setting *strip_msg =
                (struct virtchnl_vlan_setting *)msg;
        u32 ethertype_setting;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
        if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = strip_msg->outer_ethertype_setting;
        if (ethertype_setting) {
                if (ice_vc_ena_vlan_offload(vsi,
                                            vsi->outer_vlan_ops.ena_stripping,
                                            ethertype_setting)) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto out;
                } else {
                        enum ice_l2tsel l2tsel =
                                ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND;

                        /* PF tells the VF that the outer VLAN tag is always
                         * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
                         * inner is always extracted to
                         * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
                         * support outer stripping so the first tag always ends
                         * up in L2TAG2_2ND and the second/inner tag, if
                         * enabled, is extracted in L2TAG1.
                         */
                        ice_vsi_update_l2tsel(vsi, l2tsel);
                }
        }

        ethertype_setting = strip_msg->inner_ethertype_setting;
        if (ethertype_setting &&
            ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping,
                                    ethertype_setting)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
                                     v_ret, NULL, 0);
}

/**
 * ice_vc_dis_vlan_stripping_v2_msg
 * @vf: VF the message was received from
 * @msg: message received from the VF
 *
 * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
 */
static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_supported_caps *stripping_support;
        struct virtchnl_vlan_setting *strip_msg =
                (struct virtchnl_vlan_setting *)msg;
        u32 ethertype_setting;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
        if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = strip_msg->outer_ethertype_setting;
        if (ethertype_setting) {
                if (vsi->outer_vlan_ops.dis_stripping(vsi)) {
                        v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                        goto out;
                } else {
                        enum ice_l2tsel l2tsel =
                                ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1;

                        /* PF tells the VF that the outer VLAN tag is always
                         * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
                         * inner is always extracted to
                         * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
                         * support inner stripping while outer stripping is
                         * disabled so that the first and only tag is extracted
                         * in L2TAG1.
                         */
                        ice_vsi_update_l2tsel(vsi, l2tsel);
                }
        }

        ethertype_setting = strip_msg->inner_ethertype_setting;
        if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
                                     v_ret, NULL, 0);
}

/**
 * ice_vc_ena_vlan_insertion_v2_msg
 * @vf: VF the message was received from
 * @msg: message received from the VF
 *
 * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
 */
static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_supported_caps *insertion_support;
        struct virtchnl_vlan_setting *insertion_msg =
                (struct virtchnl_vlan_setting *)msg;
        u32 ethertype_setting;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
        if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = insertion_msg->outer_ethertype_setting;
        if (ethertype_setting &&
            ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion,
                                    ethertype_setting)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = insertion_msg->inner_ethertype_setting;
        if (ethertype_setting &&
            ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion,
                                    ethertype_setting)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
                                     v_ret, NULL, 0);
}

/**
 * ice_vc_dis_vlan_insertion_v2_msg
 * @vf: VF the message was received from
 * @msg: message received from the VF
 *
 * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
 */
static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_vlan_supported_caps *insertion_support;
        struct virtchnl_vlan_setting *insertion_msg =
                (struct virtchnl_vlan_setting *)msg;
        u32 ethertype_setting;
        struct ice_vsi *vsi;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
        if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = insertion_msg->outer_ethertype_setting;
        if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

        ethertype_setting = insertion_msg->inner_ethertype_setting;
        if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto out;
        }

out:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
                                     v_ret, NULL, 0);
}

static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = {
        .get_ver_msg = ice_vc_get_ver_msg,
        .get_vf_res_msg = ice_vc_get_vf_res_msg,
        .reset_vf = ice_vc_reset_vf_msg,
        .add_mac_addr_msg = ice_vc_add_mac_addr_msg,
        .del_mac_addr_msg = ice_vc_del_mac_addr_msg,
        .cfg_qs_msg = ice_vc_cfg_qs_msg,
        .ena_qs_msg = ice_vc_ena_qs_msg,
        .dis_qs_msg = ice_vc_dis_qs_msg,
        .request_qs_msg = ice_vc_request_qs_msg,
        .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
        .config_rss_key = ice_vc_config_rss_key,
        .config_rss_lut = ice_vc_config_rss_lut,
        .get_stats_msg = ice_vc_get_stats_msg,
        .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg,
        .add_vlan_msg = ice_vc_add_vlan_msg,
        .remove_vlan_msg = ice_vc_remove_vlan_msg,
        .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
        .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
        .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
        .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
        .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
        .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
        .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
        .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
        .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
        .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
        .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
        .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
};

/**
 * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops
 * @vf: the VF to switch ops
 */
void ice_virtchnl_set_dflt_ops(struct ice_vf *vf)
{
        vf->virtchnl_ops = &ice_virtchnl_dflt_ops;
}

/**
 * ice_vc_repr_add_mac
 * @vf: pointer to VF
 * @msg: virtchannel message
 *
 * When port representors are created, we do not add MAC rule
 * to firmware, we store it so that PF could report same
 * MAC as VF.
 */
static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
{
        enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
        struct virtchnl_ether_addr_list *al =
            (struct virtchnl_ether_addr_list *)msg;
        struct ice_vsi *vsi;
        struct ice_pf *pf;
        int i;

        if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
            !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto handle_mac_exit;
        }

        pf = vf->pf;

        vsi = ice_get_vf_vsi(vf);
        if (!vsi) {
                v_ret = VIRTCHNL_STATUS_ERR_PARAM;
                goto handle_mac_exit;
        }

        for (i = 0; i < al->num_elements; i++) {
                u8 *mac_addr = al->list[i].addr;
                int result;

                if (!is_unicast_ether_addr(mac_addr) ||
                    ether_addr_equal(mac_addr, vf->hw_lan_addr.addr))
                        continue;

                if (vf->pf_set_mac) {
                        dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n");
                        v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
                        goto handle_mac_exit;
                }

                result = ice_eswitch_add_vf_mac_rule(pf, vf, mac_addr);
                if (result) {
                        dev_err(ice_pf_to_dev(pf), "Failed to add MAC %pM for VF %d\n, error %d\n",
                                mac_addr, vf->vf_id, result);
                        goto handle_mac_exit;
                }

                ice_vfhw_mac_add(vf, &al->list[i]);
                vf->num_mac++;
                break;
        }

handle_mac_exit:
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
                                     v_ret, NULL, 0);
}

/**
 * ice_vc_repr_del_mac - response with success for deleting MAC
 * @vf: pointer to VF
 * @msg: virtchannel message
 *
 * Respond with success to not break normal VF flow.
 * For legacy VF driver try to update cached MAC address.
 */
static int
ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg)
{
        struct virtchnl_ether_addr_list *al =
                (struct virtchnl_ether_addr_list *)msg;

        ice_update_legacy_cached_mac(vf, &al->list[0]);

        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
                                     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
}

static int ice_vc_repr_add_vlan(struct ice_vf *vf, u8 __always_unused *msg)
{
        dev_dbg(ice_pf_to_dev(vf->pf),
                "Can't add VLAN in switchdev mode for VF %d\n", vf->vf_id);
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN,
                                     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
}

static int ice_vc_repr_del_vlan(struct ice_vf *vf, u8 __always_unused *msg)
{
        dev_dbg(ice_pf_to_dev(vf->pf),
                "Can't delete VLAN in switchdev mode for VF %d\n", vf->vf_id);
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN,
                                     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
}

static int ice_vc_repr_ena_vlan_stripping(struct ice_vf *vf)
{
        dev_dbg(ice_pf_to_dev(vf->pf),
                "Can't enable VLAN stripping in switchdev mode for VF %d\n",
                vf->vf_id);
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
                                     VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
                                     NULL, 0);
}

static int ice_vc_repr_dis_vlan_stripping(struct ice_vf *vf)
{
        dev_dbg(ice_pf_to_dev(vf->pf),
                "Can't disable VLAN stripping in switchdev mode for VF %d\n",
                vf->vf_id);
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
                                     VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
                                     NULL, 0);
}

static int
ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg)
{
        dev_dbg(ice_pf_to_dev(vf->pf),
                "Can't config promiscuous mode in switchdev mode for VF %d\n",
                vf->vf_id);
        return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
                                     VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
                                     NULL, 0);
}

static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = {
        .get_ver_msg = ice_vc_get_ver_msg,
        .get_vf_res_msg = ice_vc_get_vf_res_msg,
        .reset_vf = ice_vc_reset_vf_msg,
        .add_mac_addr_msg = ice_vc_repr_add_mac,
        .del_mac_addr_msg = ice_vc_repr_del_mac,
        .cfg_qs_msg = ice_vc_cfg_qs_msg,
        .ena_qs_msg = ice_vc_ena_qs_msg,
        .dis_qs_msg = ice_vc_dis_qs_msg,
        .request_qs_msg = ice_vc_request_qs_msg,
        .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
        .config_rss_key = ice_vc_config_rss_key,
        .config_rss_lut = ice_vc_config_rss_lut,
        .get_stats_msg = ice_vc_get_stats_msg,
        .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode,
        .add_vlan_msg = ice_vc_repr_add_vlan,
        .remove_vlan_msg = ice_vc_repr_del_vlan,
        .ena_vlan_stripping = ice_vc_repr_ena_vlan_stripping,
        .dis_vlan_stripping = ice_vc_repr_dis_vlan_stripping,
        .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
        .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
        .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
        .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
        .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
        .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
        .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
        .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
        .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
        .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
};

/**
 * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops
 * @vf: the VF to switch ops
 */
void ice_virtchnl_set_repr_ops(struct ice_vf *vf)
{
        vf->virtchnl_ops = &ice_virtchnl_repr_ops;
}

/**
 * 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);
        const struct ice_virtchnl_ops *ops;
        u16 msglen = event->msg_len;
        u8 *msg = event->msg_buf;
        struct ice_vf *vf = NULL;
        struct device *dev;
        int err = 0;

        dev = ice_pf_to_dev(pf);

        vf = ice_get_vf_by_id(pf, vf_id);
        if (!vf) {
                dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n",
                        vf_id, v_opcode, msglen);
                return;
        }

        mutex_lock(&vf->cfg_lock);

        /* Check if VF is disabled. */
        if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
                err = -EPERM;
                goto error_handler;
        }

        ops = vf->virtchnl_ops;

        /* Perform basic checks on the msg */
        err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
        if (err) {
                if (err == VIRTCHNL_STATUS_ERR_PARAM)
                        err = -EPERM;
                else
                        err = -EINVAL;
        }

error_handler:
        if (err) {
                ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
                                      NULL, 0);
                dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
                        vf_id, v_opcode, msglen, err);
                goto finish;
        }

        if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
                ice_vc_send_msg_to_vf(vf, v_opcode,
                                      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
                                      0);
                goto finish;
        }

        switch (v_opcode) {
        case VIRTCHNL_OP_VERSION:
                err = ops->get_ver_msg(vf, msg);
                break;
        case VIRTCHNL_OP_GET_VF_RESOURCES:
                err = ops->get_vf_res_msg(vf, msg);
                if (ice_vf_init_vlan_stripping(vf))
                        dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n",
                                vf->vf_id);
                ice_vc_notify_vf_link_state(vf);
                break;
        case VIRTCHNL_OP_RESET_VF:
                ops->reset_vf(vf);
                break;
        case VIRTCHNL_OP_ADD_ETH_ADDR:
                err = ops->add_mac_addr_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DEL_ETH_ADDR:
                err = ops->del_mac_addr_msg(vf, msg);
                break;
        case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
                err = ops->cfg_qs_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ENABLE_QUEUES:
                err = ops->ena_qs_msg(vf, msg);
                ice_vc_notify_vf_link_state(vf);
                break;
        case VIRTCHNL_OP_DISABLE_QUEUES:
                err = ops->dis_qs_msg(vf, msg);
                break;
        case VIRTCHNL_OP_REQUEST_QUEUES:
                err = ops->request_qs_msg(vf, msg);
                break;
        case VIRTCHNL_OP_CONFIG_IRQ_MAP:
                err = ops->cfg_irq_map_msg(vf, msg);
                break;
        case VIRTCHNL_OP_CONFIG_RSS_KEY:
                err = ops->config_rss_key(vf, msg);
                break;
        case VIRTCHNL_OP_CONFIG_RSS_LUT:
                err = ops->config_rss_lut(vf, msg);
                break;
        case VIRTCHNL_OP_GET_STATS:
                err = ops->get_stats_msg(vf, msg);
                break;
        case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
                err = ops->cfg_promiscuous_mode_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ADD_VLAN:
                err = ops->add_vlan_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DEL_VLAN:
                err = ops->remove_vlan_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
                err = ops->ena_vlan_stripping(vf);
                break;
        case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
                err = ops->dis_vlan_stripping(vf);
                break;
        case VIRTCHNL_OP_ADD_FDIR_FILTER:
                err = ops->add_fdir_fltr_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DEL_FDIR_FILTER:
                err = ops->del_fdir_fltr_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ADD_RSS_CFG:
                err = ops->handle_rss_cfg_msg(vf, msg, true);
                break;
        case VIRTCHNL_OP_DEL_RSS_CFG:
                err = ops->handle_rss_cfg_msg(vf, msg, false);
                break;
        case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
                err = ops->get_offload_vlan_v2_caps(vf);
                break;
        case VIRTCHNL_OP_ADD_VLAN_V2:
                err = ops->add_vlan_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DEL_VLAN_V2:
                err = ops->remove_vlan_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
                err = ops->ena_vlan_stripping_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
                err = ops->dis_vlan_stripping_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
                err = ops->ena_vlan_insertion_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
                err = ops->dis_vlan_insertion_v2_msg(vf, msg);
                break;
        case VIRTCHNL_OP_UNKNOWN:
        default:
                dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
                        vf_id);
                err = ice_vc_send_msg_to_vf(vf, v_opcode,
                                            VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
                                            NULL, 0);
                break;
        }
        if (err) {
                /* Helper function cares less about error return values here
                 * as it is busy with pending work.
                 */
                dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
                         vf_id, v_opcode, err);
        }

finish:
        mutex_unlock(&vf->cfg_lock);
        ice_put_vf(vf);
}