Re: [PATCH 2/2] fpga: add cancel() and get_error() to update ops

From: Moritz Fischer
Date: Wed May 19 2021 - 16:50:43 EST


Tom,

On Wed, May 19, 2021 at 01:43:18PM -0700, trix@xxxxxxxxxx wrote:
> From: Tom Rix <trix@xxxxxxxxxx>
>
> A user may want to cancel an update or get
> more information on when an update fails.
> Add some device ops to do these.
>
> Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
> ---
> include/linux/fpga/fpga-mgr.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
> index ab68280f3b4a4..31d6ebc34d87a 100644
> --- a/include/linux/fpga/fpga-mgr.h
> +++ b/include/linux/fpga/fpga-mgr.h
> @@ -111,6 +111,8 @@ struct fpga_image_info {
> * @write: write count bytes of configuration data to the FPGA
> * @write_sg: write the scatter list of configuration data to the FPGA
> * @write_complete: set FPGA to operating state after writing is done
> + * @cancel: cancel the update
> + * @get_error: get extended error information
> */
> struct fpga_manager_update_ops {
> int (*write_init)(struct fpga_manager *mgr,
> @@ -120,6 +122,8 @@ struct fpga_manager_update_ops {
> int (*write_sg)(struct fpga_manager *mgr, struct sg_table *sgt);
> int (*write_complete)(struct fpga_manager *mgr,
> struct fpga_image_info *info);
> + int (*cancel)(struct fpga_manager *mgr);
> + int (*get_error)(struct fpga_manager *mgr, u64 *err);
> };
>
> /**
> --
> 2.26.3
>

There is no user for this, so if we add this, we add it with code
calling it.

Thanks

- Moritz