Re: [PATCH] PCI: Delay after FLR of Intel DC P4510 NVMe

[Bjorn Helgaas]

On Thu, Apr 08, 2021 at 07:05:27PM +0000, Raphael Norwitz wrote:
> Like the Intel DC P3700 NVMe, the Intel P4510 NVMe exhibits a timeout
> failure when the driver tries to interact with the device to soon after
> an FLR. The same reset quirk the P3700 uses also resolves the failure
> for the P4510, so this change introduces the same reset quirk for the
> P4510.
> 
> Reviewed-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
> Signed-off-by: Alay Shah <alay.shah@xxxxxxxxxxx>
> Signed-off-by: Suresh Gumpula <suresh.gumpula@xxxxxxxxxxx>
> Signed-off-by: Raphael Norwitz <raphael.norwitz@xxxxxxxxxxx>

Applied to pci/virtualization for v5.13, thanks!

> ---
>  drivers/pci/quirks.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 653660e3ba9e..5a8c059b848d 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -3922,6 +3922,7 @@ static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
>  		reset_ivb_igd },
>  	{ PCI_VENDOR_ID_SAMSUNG, 0xa804, nvme_disable_and_flr },
>  	{ PCI_VENDOR_ID_INTEL, 0x0953, delay_250ms_after_flr },
> +	{ PCI_VENDOR_ID_INTEL, 0x0a54, delay_250ms_after_flr },
>  	{ PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
>  		reset_chelsio_generic_dev },
>  	{ 0 }
> -- 
> 2.20.1