diff --git a/os_if/linux/qca_vendor.h b/os_if/linux/qca_vendor.h
index ad64e956d2..a3147ba012 100644
--- a/os_if/linux/qca_vendor.h
+++ b/os_if/linux/qca_vendor.h
@@ -13025,4 +13025,25 @@ enum qca_wlan_vendor_attr_ratemask_params {
 	QCA_WLAN_VENDOR_ATTR_RATEMASK_PARAMS_MAX =
 	QCA_WLAN_VENDOR_ATTR_RATEMASK_PARAMS_AFTER_LAST - 1,
 };
+
+/**
+ * enum qca_wlan_vendor_attr_flush_pending - Attributes for
+ * flush pending traffic in firmware.
+ *
+ * @QCA_WLAN_VENDOR_ATTR_PEER_ADDR: Configure peer mac address.
+ * @QCA_WLAN_VENDOR_ATTR_AC: Configure access category the pending
+ * packets using. It is u8 value with bit0~3 represent AC_BE, AC_BK,
+ * AC_VI, AC_VO respectively. Set the corresponding bit to 1 to flush
+ * packets with access category.
+ */
+enum qca_wlan_vendor_attr_flush_pending {
+	QCA_WLAN_VENDOR_ATTR_FLUSH_PENDING_INVALID = 0,
+	QCA_WLAN_VENDOR_ATTR_PEER_ADDR = 1,
+	QCA_WLAN_VENDOR_ATTR_AC = 2,
+
+	/* keep last */
+	QCA_WLAN_VENDOR_ATTR_FLUSH_PENDING_AFTER_LAST,
+	QCA_WLAN_VENDOR_ATTR_FLUSH_PENDING_MAX =
+	QCA_WLAN_VENDOR_ATTR_FLUSH_PENDING_AFTER_LAST - 1,
+};
 #endif
diff --git a/os_if/linux/wlan_cfg80211.h b/os_if/linux/wlan_cfg80211.h
index 187d206b78..51559e47dc 100644
--- a/os_if/linux/wlan_cfg80211.h
+++ b/os_if/linux/wlan_cfg80211.h
@@ -250,6 +250,7 @@ enum qca_nl80211_vendor_subcmds_index {
 	QCA_NL80211_VENDOR_SUBCMD_ROAM_EVENTS_INDEX,
 #endif
 	QCA_NL80211_VENDOR_SUBCMD_MCC_QUOTA_INDEX,
+	QCA_NL80211_VENDOR_SUBCMD_PEER_FLUSH_PENDING_INDEX,
 };
 
 #if !defined(SUPPORT_WDEV_CFG80211_VENDOR_EVENT_ALLOC) && \