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    Subject[PATCH v5 26/28] fpga: dfl: afu: add DFL_FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support
    Date
    DFL_FPGA_GET_API_VERSION and DFL_FPGA_CHECK_EXTENSION ioctls are common
    ones which need to be supported by all feature devices drivers including
    FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated
    Function Unit (AFU) driver.

    Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
    Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
    Signed-off-by: Shiva Rao <shiva.rao@intel.com>
    Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
    Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
    Signed-off-by: Wu Hao <hao.wu@intel.com>
    Acked-by: Alan Tull <atull@kernel.org>
    Acked-by: Moritz Fischer <mdf@kernel.org>
    ---
    v2: rebased
    v3: rebased as driver renamed to fpga-dfl-afu
    fix one checkpatch issue
    v4: add Acked-by from Alan and Moritz.
    v5: rebase, and add DFL_ prefix to APIs.
    ---
    drivers/fpga/dfl-afu-main.c | 11 +++++++++++
    1 file changed, 11 insertions(+)

    diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
    index 6f846b7..57bb726 100644
    --- a/drivers/fpga/dfl-afu-main.c
    +++ b/drivers/fpga/dfl-afu-main.c
    @@ -236,6 +236,13 @@ static int afu_release(struct inode *inode, struct file *filp)
    return 0;
    }

    +static long afu_ioctl_check_extension(struct dfl_feature_platform_data *pdata,
    + unsigned long arg)
    +{
    + /* No extension support for now */
    + return 0;
    +}
    +
    static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
    {
    struct platform_device *pdev = filp->private_data;
    @@ -248,6 +255,10 @@ static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
    pdata = dev_get_platdata(&pdev->dev);

    switch (cmd) {
    + case DFL_FPGA_GET_API_VERSION:
    + return DFL_FPGA_API_VERSION;
    + case DFL_FPGA_CHECK_EXTENSION:
    + return afu_ioctl_check_extension(pdata, arg);
    default:
    /*
    * Let sub-feature's ioctl function to handle the cmd
    --
    1.8.3.1
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