On Tue, Mar 11, 2014 at 04:56:18PM -0700, Andy Zhou wrote:
> Signed-off-by: Andy Zhou <az...@nicira.com>

The new NXM fields are weird because OVS can report them (via
nxm_put_32m() calls in nx-match.c) but it can't accept them at all
(because the fields aren't listed in the table in meta-flow.c) or
match on them.  I don't know if that's intentional but it's
inconsistent with the comments in nicira-ext.h that talk about masking
(a field that can't be matched definitely can't be masked).
In previous discussions, I think we concluded that we want
recirculation to be transparent to userspace (and to OpenFlow), so I
suspect that the recirculation ID, at least, should not be mentioned
in nicira-ext.h or in nx-match.c (or meta-flow.[ch]).  I'm not sure
about dp_hash, but so far I think we only plan to use that internally
as well, so I'd be inclined toward doing the same for it.

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