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

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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@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Anuj Gupta <anuj20.g@xxxxxxxxxxx>
Signed-off-by: Nitesh Shetty <nj.shetty@xxxxxxxxxxx>
Signed-off-by: Vincent Fu <vincent.fu@xxxxxxxxxxx>
---
  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@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Ivo Totev, Andrew
Myers, Andrew McDonald, Martje Boudien Moerman




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