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datapath: Wrap struct ovs_key_ipv4_tunnel in a new structure.

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Currently, the flow information that is matched for tunnels and
the tunnel data passed around with packets is the same. However,
as additional information is added this is not necessarily desirable,
as in the case of pointers.

This adds a new structure for tunnel metadata which currently contains
only the existing struct. This change is purely internal to the kernel
since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version
of OVS_KEY_ATTR_TUNNEL that is translated at flow setup.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
This commit is contained in:
Jesse Gross
2014-05-27 18:15:59 -07:00
parent 9cef26ac6a
commit f0cd669f19
12 changed files with 105 additions and 81 deletions
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2
datapath/datapath.c
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@@ -382,7 +382,7 @@ static size_t key_attr_size(void)
{
/* Whenever adding new OVS_KEY_ FIELDS, we should consider
* updating this function. */
BUILD_BUG_ON(OVS_KEY_ATTR_IPV4_TUNNEL != 21);
BUILD_BUG_ON(OVS_KEY_ATTR_TUNNEL_INFO != 21);
return nla_total_size(4) /* OVS_KEY_ATTR_PRIORITY */
+ nla_total_size(0) /* OVS_KEY_ATTR_TUNNEL */