On Tue, Apr 10, 2018 at 02:26:08PM -0700, Stephen Hemminger wrote:
> On Tue, 10 Apr 2018 11:59:50 -0700
> Sridhar Samudrala <[email protected]> wrote:
>
> > Use the registration/notification framework supported by the generic
> > bypass infrastructure.
> >
> > Signed-off-by: Sridhar Samudrala <[email protected]>
> > ---
>
> Thanks for doing this. Your current version has couple show stopper
> issues.
>
> First, the slave device is instantly taking over the slave.
> This doesn't allow udev/systemd to do its device rename of the slave
> device. Netvsc uses a delayed work to workaround this.
Interesting. Does this mean udev must act within a specific time window
then?
> Secondly, the select queue needs to call queue selection in VF.
> The bonding/teaming logic doesn't work well for UDP flows.
> Commit b3bf5666a510 ("hv_netvsc: defer queue selection to VF")
> fixed this performance problem.
>
> Lastly, more indirection is bad in current climate.
>
> I am not completely adverse to this but it needs to be fast, simple
> and completely transparent.
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