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datapath: Drop user features if old user space attempted to create datapath

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Drop user features if an outdated user space instance that does not
understand the concept of user_features attempted to create a new
datapath.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Thomas Graf
2013-12-03 20:56:22 -08:00
committed by Jesse Gross
parent c58cc9a460
commit 94358dcffb
2 changed files with 30 additions and 1 deletions
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10
include/linux/openvswitch.h
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@@ -60,7 +60,15 @@ struct ovs_header {
#define OVS_DATAPATH_FAMILY "ovs_datapath"
#define OVS_DATAPATH_MCGROUP "ovs_datapath"
#define OVS_DATAPATH_VERSION 0x1
/* V2:
* - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
* when creating the datapath.
*/
#define OVS_DATAPATH_VERSION 2
/* First OVS datapath version to support features */
#define OVS_DP_VER_FEATURES 2
enum ovs_datapath_cmd {
OVS_DP_CMD_UNSPEC,