Re: [PATCH v2 04/13] mpt3sas: Added support for nvme encapsulated request message.

[Hannes Reinecke]

On 07/14/2017 03:22 PM, Suganath Prabu S wrote:
> * Mpt3sas driver uses the NVMe Encapsulated Request message to
> send an NVMe command to an NVMe device attached to the IOC.
> 
> * Normal I/O commands like reads and writes are passed to the
> controller as SCSI commands and the controller has the ability
> to translate the commands to NVMe equivalent.
> 
> * This encapsulated NVMe command is used by applications to send
> direct NVMe commands to NVMe drives or for handling unmap where
> the translation at controller/firmware level is having
> performance issues.
> 
> Signed-off-by: Chaitra P B <chaitra.basappa@xxxxxxxxxxxx>
> Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@xxxxxxxxxxxx>
> ---
>  drivers/scsi/mpt3sas/mpt3sas_base.c |   56 ++++++++++++++++++++++++++++-
>  drivers/scsi/mpt3sas/mpt3sas_base.h |    1 +
>  drivers/scsi/mpt3sas/mpt3sas_ctl.c  |   69 ++++++++++++++++++++++++++++++++---
>  3 files changed, 119 insertions(+), 7 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Hannes
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