Eric Dumazet :
> On 10/18/2018 03:59 PM, Francois Romieu wrote:
> > Eric Dumazet :
> > [...]
> >> One has to wonder why rtl8169_poll(), which might be called in a loop
> >> under DOS,
> >> has to call rtl_ack_events() ?
> >
> > So as to cover a wider temporal range before any event can trigger
On 10/18/2018 03:59 PM, Francois Romieu wrote:
> Eric Dumazet :
> [...]
>> One has to wonder why rtl8169_poll(), which might be called in a loop under
>> DOS,
>> has to call rtl_ack_events() ?
>
> So as to cover a wider temporal range before any event can trigger an
> extra irq. I was more wo
Eric Dumazet :
[...]
> One has to wonder why rtl8169_poll(), which might be called in a loop under
> DOS,
> has to call rtl_ack_events() ?
So as to cover a wider temporal range before any event can trigger an
extra irq. I was more worried about irq cost than about IO cost (and
I still am).
--
From: Heiner Kallweit
Date: Thu, 18 Oct 2018 19:56:01 +0200
> rtl_rx() and rtl_tx() are called only if the respective bits are set
> in the interrupt status register. Under high load NAPI may not be
> able to process all data (work_done == budget) and it will schedule
> subsequent calls to the po
On 18.10.2018 20:02, Eric Dumazet wrote:
>
>
> On 10/18/2018 10:56 AM, Heiner Kallweit wrote:
>> rtl_rx() and rtl_tx() are called only if the respective bits are set
>> in the interrupt status register. Under high load NAPI may not be
>> able to process all data (work_done == budget) and it will
On 10/18/2018 10:56 AM, Heiner Kallweit wrote:
> rtl_rx() and rtl_tx() are called only if the respective bits are set
> in the interrupt status register. Under high load NAPI may not be
> able to process all data (work_done == budget) and it will schedule
> subsequent calls to the poll callback.
rtl_rx() and rtl_tx() are called only if the respective bits are set
in the interrupt status register. Under high load NAPI may not be
able to process all data (work_done == budget) and it will schedule
subsequent calls to the poll callback.
rtl_ack_events() however resets the bits in the interrupt
