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Re: [PATCH v4 3/8] nvmet: implement namespace identify descriptor list

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On 06/04/2017 12:36 PM, Johannes Thumshirn wrote:
> A NVMe Identify NS command with a CNS value of '3' is expecting a list
> of Namespace Identification Descriptor structures to be returned to
> the host for the namespace requested in the namespace identify
> command.
> 
> This Namespace Identification Descriptor structure consists of the
> type of the namespace identifier, the length of the identifier and the
> actual identifier.
> 
> Valid types are NGUID and UUID which we have saved in our nvme_ns
> structure if they have been configured via configfs. If no value has
> been assigened to one of these we return an "invalid opcode" back to
> the host to maintain backward compatibiliy with older implementations
> without Namespace Identify Descriptor list support.
> 
> Also as the Namespace Identify Descriptor list is the only mandatory
> feature change between 1.2.1 and 1.3.0 we can bump the advertised
> version as well.
> 
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
> ---
>  drivers/nvme/target/admin-cmd.c | 53 +++++++++++++++++++++++++++++++++++++++++
>  drivers/nvme/target/core.c      |  3 ++-
>  drivers/nvme/target/nvmet.h     |  1 +
>  3 files changed, 56 insertions(+), 1 deletion(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)

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[PATCH v4 3/8] nvmet: implement namespace identify descriptor list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-04 12:40 +0200
  Re: [PATCH v4 3/8] nvmet: implement namespace identify descriptor  list Sagi Grimberg <sagi@grimberg.me> - 2017-06-04 17:10 +0200
  Re: [PATCH v4 3/8] nvmet: implement namespace identify descriptor         list Christoph Hellwig <hch@lst.de> - 2017-06-05 07:40 +0200
    Re: [PATCH v4 3/8] nvmet: implement namespace identify descriptor  list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-06 14:10 +0200
  Re: [PATCH v4 3/8] nvmet: implement namespace identify descriptor  list Hannes Reinecke <hare@suse.de> - 2017-06-06 08:30 +0200

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