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openvswitch: Pack struct sw_flow_key.

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struct sw_flow_key has two 16-bit holes. Move the most matched
conntrack match fields there.  In some typical cases this reduces the
size of the key that needs to be hashed into half and into one cache
line.

Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Joe Stringer <joe@ovn.org>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarno Rajahalme
2017-02-09 11:22:01 -08:00
committed by David S. Miller
parent dd41d33f0b
commit 316d4d78cf
4 changed files with 39 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
net/openvswitch/flow_netlink.c
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@@ -1072,14 +1072,14 @@ static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
return -EINVAL;
}
SW_FLOW_KEY_PUT(match, ct.state, ct_state, is_mask);
SW_FLOW_KEY_PUT(match, ct_state, ct_state, is_mask);
*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_STATE);
}
if (*attrs & (1 << OVS_KEY_ATTR_CT_ZONE) &&
ovs_ct_verify(net, OVS_KEY_ATTR_CT_ZONE)) {
u16 ct_zone = nla_get_u16(a[OVS_KEY_ATTR_CT_ZONE]);
SW_FLOW_KEY_PUT(match, ct.zone, ct_zone, is_mask);
SW_FLOW_KEY_PUT(match, ct_zone, ct_zone, is_mask);
*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_ZONE);
}
if (*attrs & (1 << OVS_KEY_ATTR_CT_MARK) &&
@@ -1107,7 +1107,7 @@ static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
SW_FLOW_KEY_PUT(match, ipv4.ct_orig.dst, ct->ipv4_dst, is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_tp.src, ct->src_port, is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_tp.dst, ct->dst_port, is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_proto, ct->ipv4_proto, is_mask);
SW_FLOW_KEY_PUT(match, ct_orig_proto, ct->ipv4_proto, is_mask);
*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4);
}
if (*attrs & (1ULL << OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6)) {
@@ -1123,7 +1123,7 @@ static int metadata_from_nlattrs(struct net *net, struct sw_flow_match *match,
is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_tp.src, ct->src_port, is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_tp.dst, ct->dst_port, is_mask);
SW_FLOW_KEY_PUT(match, ct.orig_proto, ct->ipv6_proto, is_mask);
SW_FLOW_KEY_PUT(match, ct_orig_proto, ct->ipv6_proto, is_mask);
*attrs &= ~(1ULL << OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6);
}
@@ -1564,6 +1564,9 @@ int ovs_nla_get_flow_metadata(struct net *net,
memset(&match, 0, sizeof(match));
match.key = key;
key->ct_state = 0;
key->ct_zone = 0;
key->ct_orig_proto = 0;
memset(&key->ct, 0, sizeof(key->ct));
memset(&key->ipv4.ct_orig, 0, sizeof(key->ipv4.ct_orig));
memset(&key->ipv6.ct_orig, 0, sizeof(key->ipv6.ct_orig));