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authorJesse Gross <jesse@nicira.com>2013-08-06 12:57:16 -0700
committerJesse Gross <jesse@nicira.com>2013-08-13 14:39:56 -0700
commitac923e910e15e934137b9f12997d153c83292edf (patch)
tree79ac3ed611799a2a6ea9f2d251a2c767a93d8021 /utilities/ovs-ofctl.8.in
parented2e72459317c689c46d3f1d279945485ff34fda (diff)
downloadopenvswitch-ac923e910e15e934137b9f12997d153c83292edf.tar.gz
flow: Enable matching on new field 'pkt_mark'.
The Linux kernel datapath enables matching and setting the skb mark but this functionality is currently used only internally by ovs-vswitchd. This exposes it through NXM to enable external controllers to interact with other kernel subsystems. Although this is simply exporting the skb mark, the intention is that this is a platform independent mechanism to access some system metadata and therefore may have different implementations on various systems. Bug #17855 Signed-off-by: Jesse Gross <jesse@nicira.com> Acked-by: Andy Zhou <azhou@nicira.com>
Diffstat (limited to 'utilities/ovs-ofctl.8.in')
-rw-r--r--utilities/ovs-ofctl.8.in7
1 files changed, 7 insertions, 0 deletions
diff --git a/utilities/ovs-ofctl.8.in b/utilities/ovs-ofctl.8.in
index 6fd03f8a8..47b591a9b 100644
--- a/utilities/ovs-ofctl.8.in
+++ b/utilities/ovs-ofctl.8.in
@@ -806,6 +806,13 @@ exactly, and a 0-bit wildcards that bit.
When a packet enters an OpenFlow switch, all of the registers are set
to 0. Only explicit Nicira extension actions change register values.
.
+.IP \fBpkt_mark=\fIvalue\fR[\fB/\fImask\fR]
+Matches packet metadata mark \fIvalue\fR either exactly or with optional
+\fImask\fR. The mark is associated data that may be passed into other
+system components in order to facilitate interaction between subsystems.
+On Linux this corresponds to the skb mark but the exact implementation is
+platform-dependent.
+.
.PP
Defining IPv6 flows (those with \fBdl_type\fR equal to 0x86dd) requires
support for NXM. The following shorthand notations are available for