Re: [PATCH] io_uring: uring_cmd: add multishot support without poll

[Ming Lei <ming.lei@redhat.com>]

On Sun, Aug 10, 2025 at 10:50 AM Ming Lei <ming.lei@redhat.com> wrote:
>
> Add UAPI flag IORING_URING_CMD_MULTISHOT for supporting naive multishot
> uring_cmd:
>
> - for notifying userspace to handle event, typical use case is to notify
> userspace for handle device interrupt event, really generic use case
>
> - needn't device to support poll() because the event may be originated
> from multiple source in device wide, such as multi queues
>
> - add two APIs, io_uring_cmd_select_buffer() is for getting the provided
> group buffer, io_uring_mshot_cmd_post_cqe() is for post CQE after event
> data is pushed to the provided buffer
>
> Follows one ublk use case:
>
> https://github.com/ming1/linux/commits/ublk-devel/
>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>

Hello Guys,

Ping...

Thanks,