On Fri, Apr 16, 2021 at 02:54:34PM +0800, Prike Liang wrote: > In the NVMe controller default suspend-resume seems only save/restore the > NVMe link state by APST opt and the NVMe remains in D0 during this time. > Then the NVMe device will be shutdown by SMU firmware in the s2idle entry > and then will lost the NVMe power context during s2idle resume.Finally, > the NVMe command queue request will be processed abnormally and result > in access timeout.This issue can be settled by using PCIe power set with > simple suspend-resume process path instead of APST get/set opt. > > In this patch prepare a PCIe RC bus flag to identify the platform whether > need the quirk. > > Cc: <stable@xxxxxxxxxxxxxxx> # 5.11+ > Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx> > Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx> > [ck: split patches for nvme and pcie] > Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx> > Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx> Just a "Suggested-by:" from me is fine. I'm glad you were able to confirm this is successful, so I can add my Ack as well Acked-by: Keith Busch <kbusch@xxxxxxxxxx>
