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Add support for Asynchronous Namespace Access as specified in NVMe 1.3 TP 4004. Just add a default ANA group 1 that is optimized on all ports. This is (and will remain) the default assignment for any namespace not epxlicitly assigned to another ANA group. The ANA state can be manually changed through the configfs interface, including the change state. Includes fixes and improvements from Hannes Reinecke. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> |
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