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SubjectRe: [PATCH v2 3/9] NTB: Change to use pci_aer_clear_uncorrect_error_status()
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On 9/27/22 8:35 AM, Zhuo Chen wrote:
> Status bits for ERR_NONFATAL errors only are cleared in
> pci_aer_clear_nonfatal_status(), but we want clear uncorrectable
> error status in idt_init_pci(), so we change to use
> pci_aer_clear_uncorrect_error_status().

You mean currently driver does not clear fatal errors now, and it is
a problem? Any error reported?

Also, I am wondering why is it required to clear errors during init
code. Is it a norm?

>
> Signed-off-by: Zhuo Chen <chenzhuo.1@bytedance.com>
> ---
> drivers/ntb/hw/idt/ntb_hw_idt.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
> index 0ed6f809ff2e..d5f0aa87f817 100644
> --- a/drivers/ntb/hw/idt/ntb_hw_idt.c
> +++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
> @@ -2657,8 +2657,8 @@ static int idt_init_pci(struct idt_ntb_dev *ndev)
> ret = pci_enable_pcie_error_reporting(pdev);
> if (ret != 0)
> dev_warn(&pdev->dev, "PCIe AER capability disabled\n");
> - else /* Cleanup nonfatal error status before getting to init */
> - pci_aer_clear_nonfatal_status(pdev);
> + else /* Cleanup uncorrectable error status before getting to init */
> + pci_aer_clear_uncorrect_error_status(pdev);
>
> /* First enable the PCI device */
> ret = pcim_enable_device(pdev);

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer

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