+ * ice_is_dvm_supported - check if Double VLAN Mode is supported
+ * @hw: pointer to the hardware structure
+ *
+ * Returns true if Double VLAN Mode (DVM) is supported and false if only Single
+ * VLAN Mode (SVM) is supported. In order for DVM to be supported the DDP and
+ * firmware must support it, otherwise only SVM is supported. This function
+ * should only be called while the global config lock is held and after the
+ * package has been successfully downloaded.
+ */
+static bool ice_is_dvm_supported(struct ice_hw *hw)
+{
+ if (!ice_pkg_supports_dvm(hw)) {
+ ice_debug(hw, ICE_DBG_PKG, "DDP doesn't support DVM\n");
+ return false;
+ }
+
+ if (!ice_fw_supports_dvm(hw)) {
+ ice_debug(hw, ICE_DBG_PKG, "FW doesn't support DVM\n");
+ return false;
+ }
+
+ return true;
+}
+
+#define ICE_EXTERNAL_VLAN_ID_FV_IDX 11
+#define ICE_SW_LKUP_VLAN_LOC_LKUP_IDX 1
+#define ICE_SW_LKUP_VLAN_PKT_FLAGS_LKUP_IDX 2
+#define ICE_SW_LKUP_PROMISC_VLAN_LOC_LKUP_IDX 2
+#define ICE_PKT_FLAGS_0_TO_15_FV_IDX 1
+#define ICE_PKT_FLAGS_0_TO_15_VLAN_FLAGS_MASK 0xD000
+static struct ice_update_recipe_lkup_idx_params ice_dvm_dflt_recipes[] = {
+ {
+ /* Update recipe ICE_SW_LKUP_VLAN to filter based on the
+ * outer/single VLAN in DVM
+ */
+ .rid = ICE_SW_LKUP_VLAN,
+ .fv_idx = ICE_EXTERNAL_VLAN_ID_FV_IDX,
+ .ignore_valid = true,
+ .mask = 0,
+ .mask_valid = false, /* use pre-existing mask */
+ .lkup_idx = ICE_SW_LKUP_VLAN_LOC_LKUP_IDX,
+ },
+ {
+ /* Update recipe ICE_SW_LKUP_VLAN to filter based on the VLAN
+ * packet flags to support VLAN filtering on multiple VLAN
+ * ethertypes (i.e. 0x8100 and 0x88a8) in DVM
+ */
+ .rid = ICE_SW_LKUP_VLAN,
+ .fv_idx = ICE_PKT_FLAGS_0_TO_15_FV_IDX,
+ .ignore_valid = false,
+ .mask = ICE_PKT_FLAGS_0_TO_15_VLAN_FLAGS_MASK,
+ .mask_valid = true,
+ .lkup_idx = ICE_SW_LKUP_VLAN_PKT_FLAGS_LKUP_IDX,
+ },
+ {
+ /* Update recipe ICE_SW_LKUP_PROMISC_VLAN to filter based on the
+ * outer/single VLAN in DVM
+ */
+ .rid = ICE_SW_LKUP_PROMISC_VLAN,
+ .fv_idx = ICE_EXTERNAL_VLAN_ID_FV_IDX,
+ .ignore_valid = true,
+ .mask = 0,
+ .mask_valid = false, /* use pre-existing mask */
+ .lkup_idx = ICE_SW_LKUP_PROMISC_VLAN_LOC_LKUP_IDX,
+ },
+};
+
+/**
+ * ice_dvm_update_dflt_recipes - update default switch recipes in DVM
+ * @hw: hardware structure used to update the recipes
+ */
+static enum ice_status ice_dvm_update_dflt_recipes(struct ice_hw *hw)
+{
+ unsigned long i;
+
+ for (i = 0; i < ARRAY_SIZE(ice_dvm_dflt_recipes); i++) {
+ struct ice_update_recipe_lkup_idx_params *params;
+ enum ice_status status;
+
+ params = &ice_dvm_dflt_recipes[i];
+
+ status = ice_update_recipe_lkup_idx(hw, params);
+ if (status) {
+ ice_debug(hw, ICE_DBG_INIT, "Failed to update RID %d lkup_idx %d fv_idx %d mask_valid %s mask 0x%04x\n",
+ params->rid, params->lkup_idx, params->fv_idx,
+ params->mask_valid ? "true" : "false",
+ params->mask);
+ return status;
+ }
+ }
+
+ return ICE_SUCCESS;
+}
+
+/**
+ * ice_aq_set_vlan_mode - set the VLAN mode of the device