Commit 5a6254d5 authored by Enzo Matsumiya's avatar Enzo Matsumiya Committed by Christoph Hellwig
Browse files

nvme-pci: add NO APST quirk for Kioxia device 



This particular Kioxia device times out and aborts I/O during any load,
but it's more easily observable with discards (fstrim).

The device gets to a state that is also not possible to use
"nvme set-feature" to disable APST.
Booting with nvme_core.default_ps_max_latency=0 solves the issue.

We had a dozen or so of these devices behaving this same way in
customer environments.

Signed-off-by: default avatarEnzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent a5053c92

drivers/nvme/host/core.c

+14 −0
Original line number Diff line number Diff line
@@ -2469,6 +2469,20 @@ static const struct nvme_core_quirk_entry core_quirks[] = { 
		.vid = 0x14a4,

		.fr = "22301111",

		.quirks = NVME_QUIRK_SIMPLE_SUSPEND,

	},

	{

		/*

		 * This Kioxia CD6-V Series / HPE PE8030 device times out and

		 * aborts I/O during any load, but more easily reproducible

		 * with discards (fstrim).

		 *

		 * The device is left in a state where it is also not possible

		 * to use "nvme set-feature" to disable APST, but booting with

		 * nvme_core.default_ps_max_latency=0 works.

		 */

		.vid = 0x1e0f,

		.mn = "KCD6XVUL6T40",

		.quirks = NVME_QUIRK_NO_APST,

	}

};