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Date: Wed, 2 May 2018 10:50:29 +0800 From: Wu Hao <hao.wu@...el.com> To: atull@...nel.org, mdf@...nel.org, linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org Cc: linux-api@...r.kernel.org, luwei.kang@...el.com, yi.z.zhang@...el.com, hao.wu@...el.com, Tim Whisonant <tim.whisonant@...el.com>, Enno Luebbers <enno.luebbers@...el.com>, Shiva Rao <shiva.rao@...el.com>, Christopher Rauer <christopher.rauer@...el.com>, Xiao Guangrong <guangrong.xiao@...ux.intel.com> Subject: [PATCH v5 26/28] fpga: dfl: afu: add DFL_FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support 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@...el.com> Signed-off-by: Enno Luebbers <enno.luebbers@...el.com> Signed-off-by: Shiva Rao <shiva.rao@...el.com> Signed-off-by: Christopher Rauer <christopher.rauer@...el.com> Signed-off-by: Xiao Guangrong <guangrong.xiao@...ux.intel.com> Signed-off-by: Wu Hao <hao.wu@...el.com> Acked-by: Alan Tull <atull@...nel.org> Acked-by: Moritz Fischer <mdf@...nel.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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