On Wed, Jan 29, 2020 at 3:25 AM Flavio Leitner <[email protected]> wrote:
>
> On Tue, Jan 28, 2020 at 03:23:02PM -0800, Yifeng Sun wrote:
> > Sure.
> >
> > Firstly, make sure userspace-tso-enable is true
> > # ovs-vsctl get Open_vSwitch . other_config
> > {dpdk-init="true", enable-statistics="true", pmd-cpu-mask="0xf",
> > userspace-tso-enable="true"}
> >
> > Next, create 2 VMs with vhostuser-type interface on the same KVM host:
> >     <interface type='vhostuser'>
> >       <mac address='88:69:00:00:00:11'/>
> >       <source type='unix'
> > path='/tmp/041afca0-6e11-4eab-a62f-1ccf5cd318fd' mode='server'/>
> >       <model type='virtio'/>
> >       <driver queues='2' rx_queue_size='512'>
> >         <host csum='on' tso4='on' tso6='on'/>
> >         <guest csum='on' tso4='on' tso6='on'/>
>
> I have other options set, but I don't think they are related:
>        <host csum='on' gso='off' tso4='on' tso6='on' ecn='off'
> ufo='off' mrg_rxbuf='on'/>
>        <guest csum='on' tso4='on' tso6='on' ecn='off' ufo='off'/>

Is mrg_rxbuf required to be on?
I saw when enable userspace tso, we are setting external buffer
RTE_VHOST_USER_EXTBUF_SUPPORT

Is this the same thing?
William
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