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authorPravin B Shelar <pshelar@nicira.com>2014-09-16 06:20:31 +0400
committerPravin B Shelar <pshelar@nicira.com>2014-09-16 10:28:13 +0400
commit83c8df26a3b654871c0503fcf6eac61777e12ea1 (patch)
treea3746dd3c1a08342635b654cd56df432490fa25f /net/openvswitch/flow_netlink.c
parent2ff3e4e4868675da1024175215991fa6d9856731 (diff)
downloadlinux-83c8df26a3b654871c0503fcf6eac61777e12ea1.tar.xz
openvswitch: refactor ovs flow extract API.
OVS flow extract is called on packet receive or packet execute code path. Following patch defines separate API for extracting flow-key in packet execute code path. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Andy Zhou <azhou@nicira.com>
Diffstat (limited to 'net/openvswitch/flow_netlink.c')
-rw-r--r--net/openvswitch/flow_netlink.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index d757848da89c..630b320fbf3e 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -836,7 +836,7 @@ int ovs_nla_get_match(struct sw_flow_match *match,
/**
* ovs_nla_get_flow_metadata - parses Netlink attributes into a flow key.
- * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
+ * @key: Receives extracted in_port, priority, tun_key and skb_mark.
* @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
* sequence.
*
@@ -846,32 +846,24 @@ int ovs_nla_get_match(struct sw_flow_match *match,
* extracted from the packet itself.
*/
-int ovs_nla_get_flow_metadata(struct sw_flow *flow,
- const struct nlattr *attr)
+int ovs_nla_get_flow_metadata(const struct nlattr *attr,
+ struct sw_flow_key *key)
{
- struct ovs_key_ipv4_tunnel *tun_key = &flow->key.tun_key;
const struct nlattr *a[OVS_KEY_ATTR_MAX + 1];
+ struct sw_flow_match match;
u64 attrs = 0;
int err;
- struct sw_flow_match match;
-
- flow->key.phy.in_port = DP_MAX_PORTS;
- flow->key.phy.priority = 0;
- flow->key.phy.skb_mark = 0;
- memset(tun_key, 0, sizeof(flow->key.tun_key));
err = parse_flow_nlattrs(attr, a, &attrs);
if (err)
return -EINVAL;
memset(&match, 0, sizeof(match));
- match.key = &flow->key;
+ match.key = key;
- err = metadata_from_nlattrs(&match, &attrs, a, false);
- if (err)
- return err;
+ key->phy.in_port = DP_MAX_PORTS;
- return 0;
+ return metadata_from_nlattrs(&match, &attrs, a, false);
}
int ovs_nla_put_flow(const struct sw_flow_key *swkey,