[PATCH v15 12/12] null_blk: add support for copy offload

[Hannes Reinecke]

On 9/6/23 18:38, Nitesh Shetty wrote:
> Implementation is based on existing read and write infrastructure.
> copy_max_bytes: A new configfs and module parameter is introduced, which
> can be used to set hardware/driver supported maximum copy limit.
> Only request based queue mode will support for copy offload.
> Added tracefs support to copy IO tracing.
> 
> Suggested-by: Damien Le Moal <damien.lemoal at opensource.wdc.com>
> Signed-off-by: Anuj Gupta <anuj20.g at samsung.com>
> Signed-off-by: Nitesh Shetty <nj.shetty at samsung.com>
> Signed-off-by: Vincent Fu <vincent.fu at samsung.com>
> ---
>   Documentation/block/null_blk.rst  |  5 ++
>   drivers/block/null_blk/main.c     | 97 ++++++++++++++++++++++++++++++-
>   drivers/block/null_blk/null_blk.h |  1 +
>   drivers/block/null_blk/trace.h    | 23 ++++++++
>   4 files changed, 123 insertions(+), 3 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
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