Messages in this thread | | | Date | Wed, 14 Mar 2018 14:52:30 -0600 | From | Keith Busch <> | Subject | Re: [PATCH v2] PCI/DPC: Fix PCI legacy interrupt acknowledgement |
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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
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