lkml.org 
[lkml]   [2018]   [Mar]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] PCI/DPC: Fix PCI legacy interrupt acknowledgement
On Wed, Mar 14, 2018 at 09:20:48PM +0530, Oza Pawandeep wrote:
> Current DPC driver acknowledges the interrupt in deferred work, which works
> since MSI are edge triggered.
>
> But when MSI is disabled (e.g. pci=nomsi boot option) port service
> driver falls back to PCI legacy INT interrupt.
>
> With current code we do not acknowledge the interrupt back in dpc_irq()
> and we get dpc interrupt storm.
>
> This patch acknowledges the interrupt in interrupt handler.
>
> Signed-off-by: Oza Pawandeep <poza@codeaurora.org>

Thanks, this looks good to me.

Reviewed-by: Keith Busch <keith

\
 
 \ /
  Last update: 2018-03-14 21:51    [W:0.055 / U:10.320 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site