On Thu, May 05, 2022 at 04:54:01PM +0300, Dmitry Baryshkov wrote:
> I have replied with my Tested-by to the patch at [2], which has landed
> in the linux-next as the commit 20f1bfb8dd62 ("PCI: qcom:
> Add support for handling MSIs from 8 endpoints"). However lately I
> noticed that during the tests I still had 'pcie_pme=nomsi', so the
> device was not forced to use higher MSI vectors.
>
> After removing this option I noticed that hight MSI vectors are not
s/hight/high/
> delivered on tested platforms. Additional research pointed to
> a patch in msm-4.14 ([1]), which describes that each group of MSI
> vectors is mapped to the separate interrupt.
>
> Without these changes specifying num_verctors can lead to missing MSI
s/num_verctors/num_vectors/
> interrupts and thus to devices malfunction.
>
> Fixes: 20f1bfb8dd62 ("PCI: qcom: Add support for handling MSIs from 8 endpoints")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---
> drivers/pci/controller/dwc/pcie-qcom.c | 1 -
> 1 file changed, 1 deletion(-)
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
