Re: [PATCH net] net: hns3: fix to stop multiple HNS reset due to the AER changes

From: David Miller
Date: Sun Mar 10 2019 - 01:59:43 EST


From: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Date: Sun, 10 Mar 2019 14:47:51 +0800

> From: Shiju Jose <shiju.jose@xxxxxxxxxx>
>
> The commit bfcb79fca19d
> ("PCI/ERR: Run error recovery callbacks for all affected devices")
> affected the non-fatal error recovery logic for the HNS and RDMA devices.
> This is because each HNS PF under PCIe bus receive callbacks
> from the AER driver when an error is reported for one of the PF.
> This causes unwanted PF resets because
> the HNS decides which PF to reset based on the reset type set.
> The HNS error handling code sets the reset type based on the hw error
> type detected.
>
> This patch provides fix for the above issue for the recovery of
> the hw errors in the HNS and RDMA devices.
>
> This patch needs backporting to the kernel v5.0+
>
> Fixes: 332fbf576579 ("net: hns3: add handling of hw ras errors using new set of commands")
> Reported-by: Xiaofei Tan <tanxiaofei@xxxxxxxxxx>
> Signed-off-by: Shiju Jose <shiju.jose@xxxxxxxxxx>
> Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>

Applied and queued up for -stable, thanks.