On 1/11/23 12:31 PM, Vidya Sagar wrote:
> As the ECRC configuration bits are part of AER registers, configure
> ECRC only if AER is natively owned by the kernel.
ecrc command line option takes "bios/on/off" as possible options. It
does not clarify whether "on/off" choices can only be used if AER is
owned by OS or it can override the ownership of ECRC configuration
similar to pcie_ports=native option. Maybe that needs to be clarified.
>
> Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
> ---
> drivers/pci/pcie/aer.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
> index e2d8a74f83c3..730b47bdcdef 100644
> --- a/drivers/pci/pcie/aer.c
> +++ b/drivers/pci/pcie/aer.c
> @@ -184,6 +184,9 @@ static int disable_ecrc_checking(struct pci_dev *dev)
> */
> void pcie_set_ecrc_checking(struct pci_dev *dev)
> {
> + if (!pcie_aer_is_native(dev))
> + return;
> +
> switch (ecrc_policy) {
> case ECRC_POLICY_DEFAULT:
> return;
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
