Re: [PATCH] nvme-pci: set some AMD PCIe downstream storage device to D3 for s2idle
From: Keith Busch <kbusch@kernel.org>
Date: 2021-05-25 20:04:41
On Tue, May 25, 2021 at 02:06:09PM +0000, Limonciello, Mario wrote:
"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"
The nvme driver explicitly checks pm_set_suspend_via_firmware() in order to know if firmware may manipulate our device after completing the idle suspend. That is returning false here, yet firmware will do something anyway. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme