Re: [dpdk-dev] [PATCH v1 06/11] ixgbe: fix rx intr compatible issue with PF mbox

[David Marchand <david.marchand@6wind.com>]

On Mon, Nov 2, 2015 at 5:09 PM, Ananyev, Konstantin <
konstantin.ananyev@intel.com> wrote:

>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of David Marchand
> > Sent: Monday, November 02, 2015 4:03 PM
> > To: Liang, Cunming
> > Cc: dev@dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH v1 06/11] ixgbe: fix rx intr compatible
> issue with PF mbox
> >
> > On Thu, Sep 24, 2015 at 7:33 AM, Cunming Liang <cunming.liang@intel.com>
> > wrote:
> >
> > > When ixgbe runs as a PF, mbox interrupt is prerequisite to make VF
> start
> > > normally.
> > > And PF sometimes won't 'dev_start', so the mbox interrupt register
> during
> > > 'dev_init' is required.
> > >
> >
> > Can you describe the cases/situations where you would want a device to
> > handle interrupts while not started ?
>
> When PF and VF are both controlled by DPDK process(es).
> And user doesn't really want to do any RX/TX through PF - uses PF just to
> control/configure VF(s).
>
>
Ok, but the user still needs to whitelist the PF (or ensure the PF is not
blacklisted) in one of these processes.
Then, the application would do a "partial" initialisation ?
If you don't want rx/tx, don't poll the port.

Anyway, this is your code :-)


-- 
David Marchand