Re: [PATCH] hyperv: Add netpoll support

Richard Weinberger
2014-07-08T23:08:39Z

Am 09.07.2014 00:47, schrieb Francois Romieu:
> Richard Weinberger <richard@nod.at> :
> [...]
>> This won't work as netpoll runs with IRQs disabled.
>> ->ndo_poll_controller() has to make sure that SKBs can be received and transmitted
>> while IRQs are off. I thought calling the channel callback by hand would be
>> enough to receive SKBs.
>
> What are you taking about ? netconsole does not need to receive.
>
> hyperv start_xmit handler almost does its own Tx completion as you have
> noticed. The situation is imho close to a virtual device one as was veth
> in bb446c19fefd7b4435adb12a9dd7666adc5b553a.

Ah, net-next.git.
My first (in-house) patch had the same empty poll controller as tun.c and now veth.c have.
If we are fine with tx only, I'll happily resend an updated patch with an empty poll controller. :-)

Thanks,
//richard