Re: [PATCH v4 08/25] dmaengine: sdxi: Introduce submission queue

[Frank Li]

On Tue, Nov 03, 2026 at 08:49:49PM -0600, Nathan Lynch via B4 Relay wrote:
> From: Nathan Lynch <nathan.lynch@xxxxxxx>
>
> Add the sdxi_sq (submission queue) type and APIs that act on it. The
> sq contains three control structures shared with hardware: descriptor
> ring, write index, and context status block (which contains the read
> index). Define the hardware context-status and generic descriptor
> layouts, including assertions for their sizes.
>
> The descriptor ring requires only 64-byte alignment, so it's practical
> to implement it as a flexible array member. The write index and context
> status are small enough to place in the struct as well, so we have a
> single DMA coherent allocation to manage.
>
> Signed-off-by: Nathan Lynch <nathan.lynch@xxxxxxx>
> ---

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>