1 files changed, 20 insertions, 5 deletions

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index d3eaaaf1009e..0c9b44871df0 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -500,13 +500,26 @@ union ethtool_flow_union {
         struct ethtool_ah_espip4_spec           esp_ip4_spec;
         struct ethtool_usrip4_spec              usr_ip4_spec;
         struct ethhdr                           ether_spec;
-        __u8                                    hdata[60];
+        __u8                                    hdata[52];
 };
 
+/**
+ * struct ethtool_flow_ext - additional RX flow fields
+ * @h_dest: destination MAC address
+ * @vlan_etype: VLAN EtherType
+ * @vlan_tci: VLAN tag control information
+ * @data: user defined data
+ *
+ * Note, @vlan_etype, @vlan_tci, and @data are only valid if %FLOW_EXT
+ * is set in &struct ethtool_rx_flow_spec @flow_type.
+ * @h_dest is valid if %FLOW_MAC_EXT is set.
+ */
 struct ethtool_flow_ext {
-        __be16  vlan_etype;
-        __be16  vlan_tci;
-        __be32  data[2];
+        __u8            padding[2];
+        unsigned char   h_dest[ETH_ALEN];
+        __be16          vlan_etype;
+        __be16          vlan_tci;
+        __be32          data[2];
 };
 
 /**
@@ -517,7 +530,8 @@ struct ethtool_flow_ext {
  * @m_u: Masks for flow field bits to be matched
  * @m_ext: Masks for additional field bits to be matched
  *      Note, all additional fields must be ignored unless @flow_type
- *      includes the %FLOW_EXT flag.
+ *      includes the %FLOW_EXT or %FLOW_MAC_EXT flag
+ *      (see &struct ethtool_flow_ext description).
  * @ring_cookie: RX ring/queue index to deliver to, or %RX_CLS_FLOW_DISC
  *      if packets should be discarded
  * @location: Location of rule in the table.  Locations must be
@@ -1027,6 +1041,7 @@ enum ethtool_sfeatures_retval_bits {
 #define ETHER_FLOW      0x12    /* spec only (ether_spec) */
 /* Flag to enable additional fields in struct ethtool_rx_flow_spec */
 #define FLOW_EXT        0x80000000
+#define FLOW_MAC_EXT    0x40000000
 
 /* L3-L4 network traffic flow hash options */
 #define RXH_L2DA        (1 << 1)