[ovs-git] Open vSwitch: nx-match: Add parsing and serialisation of OXM matches. (master)

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- Log -----------------------------------------------------------------
commit b5ae8913b20df772ee484902c7def3b42b3871f6
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=b5ae8913b20df772ee484902c7def3b42b3871f6
Author: Simon Horman <horms at verge.net.au>
		
nx-match: Add parsing and serialisation of OXM matches.
		
This code, which leverages the existing NXM implementation,
adds parsing and serialisation of OXM matches. Test cases
have also been provided.

This patch only implements parsing and serialisation of OXM fields that
are already handled by NXM.

It should be noted that in OXM ports are 32bit whereas in NXM they
are 16 bit. This has been handled as a special case as all other field
widths are the same in both OXM and NXM.

This patch does not address differences in wildcarding between OXM and NXM.
It is planned that liberal wildcarding policy dictated by either OXM or
NXM will be implemented.

This patch also does not address any (subtle?) differences between
OXM and NXM treatment of specific fields. It is envisages that his
can be handled by subsequent patches.

Signed-off-by: Simon Horman <horms at verge.net.au>
[blp at nicira.com adjusted style, added a comment, changed in_port special
 case, enabled NXM extensions to OXM]
Signed-off-by: Ben Pfaff <blp at nicira.com>


-----------------------------------------------------------------------

Summary of changes:
 include/openflow/openflow-1.2.h |    2 +
 lib/meta-flow.c                 |   67 +++++++---
 lib/nx-match.c                  |  140 +++++++++++++-------
 lib/nx-match.h                  |    2 +-
 lib/ofp-util.c                  |   13 +-
 tests/ovs-ofctl.at              |  279 +++++++++++++++++++++++++++++++++++++++
 utilities/ovs-ofctl.c           |   30 ++++-
 7 files changed, 456 insertions(+), 77 deletions(-)


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