Hi Ilya, Do you think we can merge this patch first as it is specific to the controller action? I will check the behavior of output(port=controller,max_len=X) and once I have confirmation, I can submit a new patch.
Thanks, Antonin Le ven. 25 août 2023 à 07:10, Ilya Maximets <i.maxim...@ovn.org> a écrit : > On 8/17/23 02:30, Antonin Bas wrote: > > From: Antonin Bas <antonin....@gmail.com> > > > > From: Antonin Bas <a...@vmware.com> > > > > Since Open vSwitch 2.7, the max_len option has no effect, and the full > > packet is always sent to controllers. This was confirmed with both the > > kernel and netdev datapaths. > > Hi, Antonin. Thanks for the patch! And sorry for delay. > > IIUC, this also affects the output(port=controller,max_len=X) actions, > right? > In this case, we need to update the docs for the 'output' action as well. > > Best regards, Ilya Maximets. > > > > > Reported-by: Antonin Bas <a...@vmware.com> > > Reported-at: https://github.com/openvswitch/ovs-issues/issues/295 > > Signed-off-by: Antonin Bas <a...@vmware.com> > > --- > > v2: Fix typos, set author to VMware email address > > --- > > Documentation/ref/ovs-actions.7.rst | 9 ++++++++- > > 1 file changed, 8 insertions(+), 1 deletion(-) > > > > diff --git a/Documentation/ref/ovs-actions.7.rst > b/Documentation/ref/ovs-actions.7.rst > > index d13895655..36adcc5db 100644 > > --- a/Documentation/ref/ovs-actions.7.rst > > +++ b/Documentation/ref/ovs-actions.7.rst > > @@ -694,7 +694,8 @@ encapsulated in an OpenFlow ``packet-in`` message. > The supported options are: > > Limit to *max_len* the number of bytes of the packet to send in the > > ``packet-in.`` A *max_len* of 0 prevents any of the packet from > being > > sent (thus, only metadata is included). By default, the entire > packet is > > - sent, equivalent to a *max_len* of 65535. > > + sent, equivalent to a *max_len* of 65535. This option has no > effect in > > + Open vSwith 2.7 and later: the entire packet will always be sent. > > > > ``reason=``\ *reason* > > Specify *reason* as the reason for sending the message in the > > @@ -733,6 +734,12 @@ encapsulated in an OpenFlow ``packet-in`` message. > The supported options are: > > options require the Open vSwitch ``NXAST_CONTROLLER`` extension > action added > > in Open vSwitch 1.6. > > > > + Open vSwitch 2.7 and later is configured to not buffer packets for the > > + packet-in event. As a result, the full packet is always sent to > > + controllers. This means that the ``max_len`` option has no effect on > the > > + ``controller`` action, and all values (even 0) are equivalent to the > default > > + value of 65535. > > + > > > > The ``enqueue`` action > > ---------------------- > > _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
