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    Subject[PATCH 4.9 26/38] nvme-pci: add quirk for delay before CHK RDY for WDC SN200
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Jeff Lien <jeff.lien@wdc.com>

    commit 8c97eeccf0ad8783c057830119467b877bdfced7 upstream.

    And increase the existing delay to cover this device as well.

    Signed-off-by: Jeff Lien <jeff.lien@wdc.com>
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/nvme/host/nvme.h | 2 +-
    drivers/nvme/host/pci.c | 2 ++
    2 files changed, 3 insertions(+), 1 deletion(-)

    --- a/drivers/nvme/host/nvme.h
    +++ b/drivers/nvme/host/nvme.h
    @@ -84,7 +84,7 @@ enum nvme_quirks {
    * NVME_QUIRK_DELAY_BEFORE_CHK_RDY quirk enabled. The value (in ms) was
    * found empirically.
    */
    -#define NVME_QUIRK_DELAY_AMOUNT 2000
    +#define NVME_QUIRK_DELAY_AMOUNT 2300

    enum nvme_ctrl_state {
    NVME_CTRL_NEW,
    --- a/drivers/nvme/host/pci.c
    +++ b/drivers/nvme/host/pci.c
    @@ -2109,6 +2109,8 @@ static const struct pci_device_id nvme_i
    .driver_data = NVME_QUIRK_IDENTIFY_CNS, },
    { PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */
    .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
    + { PCI_DEVICE(0x1c58, 0x0023), /* WDC SN200 adapter */
    + .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
    { PCI_DEVICE(0x1c5f, 0x0540), /* Memblaze Pblaze4 adapter */
    .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, },
    { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },

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