diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index 07e7dca0e4f2..aa11f0925e27 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -736,7 +736,7 @@ static int efx_ef100_get_base_mport(struct efx_nic *efx)
 	/* Construct mport selector for "physical network port" */
 	efx_mae_mport_wire(efx, &selector);
 	/* Look up actual mport ID */
-	rc = efx_mae_lookup_mport(efx, selector, &id);
+	rc = efx_mae_fw_lookup_mport(efx, selector, &id);
 	if (rc)
 		return rc;
 	/* The ID should always fit in 16 bits, because that's how wide the
@@ -751,7 +751,7 @@ static int efx_ef100_get_base_mport(struct efx_nic *efx)
 	/* Construct mport selector for "calling PF" */
 	efx_mae_mport_uplink(efx, &selector);
 	/* Look up actual mport ID */
-	rc = efx_mae_lookup_mport(efx, selector, &id);
+	rc = efx_mae_fw_lookup_mport(efx, selector, &id);
 	if (rc)
 		return rc;
 	if (id >> 16)
diff --git a/drivers/net/ethernet/sfc/ef100_rep.c b/drivers/net/ethernet/sfc/ef100_rep.c
index ebe7b1275713..9cd1a3ac67e0 100644
--- a/drivers/net/ethernet/sfc/ef100_rep.c
+++ b/drivers/net/ethernet/sfc/ef100_rep.c
@@ -243,14 +243,11 @@ fail1:
 static int efx_ef100_configure_rep(struct efx_rep *efv)
 {
 	struct efx_nic *efx = efv->parent;
-	u32 selector;
 	int rc;
 
 	efv->rx_pring_size = EFX_REP_DEFAULT_PSEUDO_RING_SIZE;
-	/* Construct mport selector for corresponding VF */
-	efx_mae_mport_vf(efx, efv->idx, &selector);
 	/* Look up actual mport ID */
-	rc = efx_mae_lookup_mport(efx, selector, &efv->mport);
+	rc = efx_mae_lookup_mport(efx, efv->idx, &efv->mport);
 	if (rc)
 		return rc;
 	pci_dbg(efx->pci_dev, "VF %u has mport ID %#x\n", efv->idx, efv->mport);
diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c
index 725a3ab31087..6321fd393fc3 100644
--- a/drivers/net/ethernet/sfc/mae.c
+++ b/drivers/net/ethernet/sfc/mae.c
@@ -97,7 +97,7 @@ void efx_mae_mport_mport(struct efx_nic *efx __always_unused, u32 mport_id, u32
 }
 
 /* id is really only 24 bits wide */
-int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id)
+int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id)
 {
 	MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MPORT_LOOKUP_OUT_LEN);
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_LOOKUP_IN_LEN);
@@ -488,6 +488,31 @@ int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt)
 	return 0;
 }
 
+int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf_idx, u32 *id)
+{
+	struct ef100_nic_data *nic_data = efx->nic_data;
+	struct efx_mae *mae = efx->mae;
+	struct rhashtable_iter walk;
+	struct mae_mport_desc *m;
+	int rc = -ENOENT;
+
+	rhashtable_walk_enter(&mae->mports_ht, &walk);
+	rhashtable_walk_start(&walk);
+	while ((m = rhashtable_walk_next(&walk)) != NULL) {
+		if (m->mport_type == MAE_MPORT_DESC_MPORT_TYPE_VNIC &&
+		    m->interface_idx == nic_data->local_mae_intf &&
+		    m->pf_idx == 0 &&
+		    m->vf_idx == vf_idx) {
+			*id = m->mport_id;
+			rc = 0;
+			break;
+		}
+	}
+	rhashtable_walk_stop(&walk);
+	rhashtable_walk_exit(&walk);
+	return rc;
+}
+
 static bool efx_mae_asl_id(u32 id)
 {
 	return !!(id & BIT(31));
diff --git a/drivers/net/ethernet/sfc/mae.h b/drivers/net/ethernet/sfc/mae.h
index daa29d2cde96..b9bf86c47cda 100644
--- a/drivers/net/ethernet/sfc/mae.h
+++ b/drivers/net/ethernet/sfc/mae.h
@@ -96,4 +96,6 @@ int efx_mae_delete_rule(struct efx_nic *efx, u32 id);
 int efx_init_mae(struct efx_nic *efx);
 void efx_fini_mae(struct efx_nic *efx);
 void efx_mae_remove_mport(void *desc, void *arg);
+int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
+int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf, u32 *id);
 #endif /* EF100_MAE_H */