On Mon, May 18, 2015 at 04:10:25PM -0700, Jarno Rajahalme wrote:
> The new ovs-ofctl 'bundle' command accepts files similar to
> 'add-flows', but each line can optionally start with 'add', 'modify',
> 'delete', 'modify_strict', or 'delete_strict' keyword, so that
> arbitrary flow table modifications may be specified in a single file.
> The modifications in the file are executed as a single transaction
> using a OpenFlow 1.4 bundle.
> 
> Similarly, all existing ovs-ofctl flow mod commands now take an
> optional '--bundle' argument, which executes the flow mods as a single
> transaction.
> 
> OpenFlow 1.4 requires bundles to support at least flow and port mods.
> This implementation does not yet support port mods in bundles.
> 
> Another restriction is that the atomic transactions are not yet
> supported.
> 
> Signed-off-by: Jarno Rajahalme <jrajaha...@nicira.com>

I like the new command for doing a mix of operations from one file, but
I suspect that this could be almost as useful without bundling.  Users
could want to add and delete a mix of flows with any version of
OpenFlow, and the bundle is really just a bonus.

So: what if you gave the command a more generic name, and then gave it a
--bundle option like the rest of the commands that can be bundled?  (In
fact, you could do this without adding a new command at all, instead
allowing "add-flows" to support any command instead of just "add".  I
think this would be fully backward compatible.)

In the manpage, usually we use bullets, with \(bu, instead of hyphens,
for bulleted lists.

I think that ofctl_flow_mod__() could call bundle_flow_mod__() if
'bundle' is true, instead of having the caller deal with that.

When vconn_bundle_transact() finds an error and sends an
OFPBCT_DISCARD_REQUEST, I suspect that the return value from
vconn_bundle_control_transact() should not overwrite 'error', because
then the previous error will be lost.

I'm a little surprised to see the new "error_reporter" callback
function.  Can you explain a little?

In parse_ofp_str__(), I suspect that the "strict" versions won't ever be
matched, because the shorter non-strict versions will be matched
earlier.

Thanks for adding tests!

This will be really nice, thanks for implementing it.

(Now, to find out why there are three more commits...)
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