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    Subject[PATCH V2 4/7] scsi: storvsc: Retrieve information about the capability of the target
    Date
    The storage protocol informs the guest of the I/O capabilities of the storage
    stack. Retrieve this information and use it in the guest.

    Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
    Reviewed-by: Long Li <longli@microsoft.com>
    ---
    drivers/scsi/storvsc_drv.c | 6 ++++++
    1 files changed, 6 insertions(+), 0 deletions(-)

    diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
    index 0ba7f2c..cdf048b 100644
    --- a/drivers/scsi/storvsc_drv.c
    +++ b/drivers/scsi/storvsc_drv.c
    @@ -377,6 +377,10 @@ struct storvsc_device {
    unsigned char path_id;
    unsigned char target_id;

    + /*
    + * Max I/O, the device can support.
    + */
    + u32 max_transfer_bytes;
    /* Used for vsc/vsp channel reset process */
    struct storvsc_cmd_request init_request;
    struct storvsc_cmd_request reset_request;
    @@ -974,6 +978,8 @@ static int storvsc_channel_init(struct hv_device *device)
    STORAGE_CHANNEL_SUPPORTS_MULTI_CHANNEL)
    process_sub_channels = true;
    }
    + stor_device->max_transfer_bytes =
    + vstor_packet->storage_channel_properties.max_transfer_bytes;

    memset(vstor_packet, 0, sizeof(struct vstor_packet));
    vstor_packet->operation = VSTOR_OPERATION_END_INITIALIZATION;
    --
    1.7.4.1


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