net: Add IPv6 flow label to flow_keys
In flow_dissector set the flow label in flow_keys for IPv6. This also
removes the shortcircuiting of flow dissection when a non-zero label
is present, the flow label can be considered to provide additional
entropy for a hash.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index 08480fb..14d8483 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -28,7 +28,8 @@
};
struct flow_dissector_key_tags {
- u32 vlan_id:12;
+ u32 vlan_id:12,
+ flow_label:20;
};
/**
@@ -111,6 +112,7 @@
FLOW_DISSECTOR_KEY_ETH_ADDRS, /* struct flow_dissector_key_eth_addrs */
FLOW_DISSECTOR_KEY_TIPC_ADDRS, /* struct flow_dissector_key_tipc_addrs */
FLOW_DISSECTOR_KEY_VLANID, /* struct flow_dissector_key_flow_tags */
+ FLOW_DISSECTOR_KEY_FLOW_LABEL, /* struct flow_dissector_key_flow_tags */
FLOW_DISSECTOR_KEY_MAX,
};