PROBLEM: XPG Gammix S70 Blade PCIe Gen 4 NVMe drive unusable in Linux

[Keith Busch]

On Sun, Feb 06, 2022 at 03:02:54PM -0500, Warren Chartier wrote:
> Summary: XPG Gammix S70 Blade PCIe Gen 4 NVMe drive unusable in Linux 
> 
> Full Description: 
> XPG Gammix S70 Blade 1TB PCIe Gen 4.0 NVMe drive is detected by the Linux kernel however when block operations are performed on it these errors are generated: 
> 
> [ 3.958786] nvme 0000:0e:00.0: invalid VPD tag 0xff (size 65535) at offset 7 
> [ 71.726420] nvme nvme1: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff 

An all f's response generally indicates we can't communicate with the
end point on this link. The description here usually means there's some
platform incompatibility with the automated power settings.

Try adding kernel parameter 'pcie_aspm=off'. If that doesn't work,
add kernel parameter 'nvme_core.default_ps_max_latency_us=0'.