[PATCH AUTOSEL 5.4 20/25] nvme-pci: add NO APST quirk for Kioxia device

Sasha Levin
2021-11-30T15:03:50Z

From: Enzo Matsumiya <ematsumiya@suse.de>

[ Upstream commit 5a6254d55e2a9f7919ead8580d7aa0c7a382b26a ]

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: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvme/host/core.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index a5b5a2305791d..5fa48d36954ce 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2453,6 +2453,20 @@ 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,
}
};

--
2.33.0