diff options
| author | Aravind Ramesh <aravind.ramesh@wdc.com> | 2020-06-29 12:06:38 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-07-08 16:16:19 +0200 |
| commit | 089565fbf3bba99f91293b47b8c59ed85e00a81c (patch) | |
| tree | ced7368d7440dbb43a0bbdc3e391a3bc6d5f80ba /drivers/block/null_blk.h | |
| parent | 82394db7383d33641f3f565bd79792fb41b1741f (diff) | |
null_blk: introduce zone capacity for zoned device
Allow emulation of a zoned device with a per zone capacity smaller than
the zone size as as defined in the Zoned Namespace (ZNS) Command Set
specification. The zone capacity defaults to the zone size if not
specified and must be smaller than the zone size otherwise.
Reviewed-by: Matias Bjørling <matias.bjorling@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Aravind Ramesh <aravind.ramesh@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/block/null_blk.h')
| -rw-r--r-- | drivers/block/null_blk.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h index 81b311c9d781..daed4a9c3436 100644 --- a/drivers/block/null_blk.h +++ b/drivers/block/null_blk.h @@ -49,6 +49,7 @@ struct nullb_device { unsigned long completion_nsec; /* time in ns to complete a request */ unsigned long cache_size; /* disk cache size in MB */ unsigned long zone_size; /* zone size in MB if device is zoned */ + unsigned long zone_capacity; /* zone capacity in MB if device is zoned */ unsigned int zone_nr_conv; /* number of conventional zones */ unsigned int submit_queues; /* number of submission queues */ unsigned int home_node; /* home node for the device */ |