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    Subject[PATCH AUTOSEL 5.15 45/68] nvme-pci: add NO APST quirk for Kioxia device
    Date
    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 f8dd664b2eda5..4ff75d7031110 100644
    --- a/drivers/nvme/host/core.c
    +++ b/drivers/nvme/host/core.c
    @@ -2468,6 +2468,20 @@ 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
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