iproute2: tc: f_flow: add key rxhash

We can use rxhash to classify the traffic into flows. As rxhash maybe
supplied by NIC or RPS, it is cheaper.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>

diff --git a/include/linux/pkt_cls.h b/include/linux/pkt_cls.h
index 7f6ba8658abe4909d27c3699fba92332b059a1dd..defbde203d0782034d23173063a9f7313d0b2e81 100644 (file)
--- a/include/linux/pkt_cls.h
+++ b/include/linux/pkt_cls.h
@@ -332,6 +332,7 @@ enum {
        FLOW_KEY_SKUID,
        FLOW_KEY_SKGID,
        FLOW_KEY_VLAN_TAG,
+       FLOW_KEY_RXHASH,
        __FLOW_KEY_MAX,
 };
 

diff --git a/tc/f_flow.c b/tc/f_flow.c
index 84b45c9a774101acec6107a5d97f82f087602f07..574253d92bf37b1aedc0ccb8e744b119ab8b598b 100644 (file)
--- a/tc/f_flow.c
+++ b/tc/f_flow.c
@@ -33,7 +33,7 @@ static void explain(void)
 "KEY      := [ src | dst | proto | proto-src | proto-dst | iif | priority | \n"
 "              mark | nfct | nfct-src | nfct-dst | nfct-proto-src | \n"
 "              nfct-proto-dst | rt-classid | sk-uid | sk-gid |\n"
-"              vlan-tag ]\n"
+"              vlan-tag | rxhash ]\n"
 "OPS      := [ or NUM | and NUM | xor NUM | rshift NUM | addend NUM ]\n"
 "ID       := X:Y\n"
        );
@@ -57,6 +57,7 @@ static const char *flow_keys[FLOW_KEY_MAX+1] = {
        [FLOW_KEY_SKUID]                = "sk-uid",
        [FLOW_KEY_SKGID]                = "sk-gid",
        [FLOW_KEY_VLAN_TAG]             = "vlan-tag",
+       [FLOW_KEY_RXHASH]               = "rxhash",
 };
 
 static int flow_parse_keys(__u32 *keys, __u32 *nkeys, char *argv)