diff options
| author | Keith Busch <keith.busch@intel.com> | 2016-02-18 16:57:48 (GMT) |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-03-16 14:46:25 (GMT) |
| commit | 118472ab8532e55f48395ef5764b354fe48b1d73 (patch) | |
| tree | fd16dcee80675a6e96e043a8544696c4129bfefa /drivers/nvme/host/nvme.h | |
| parent | 98347a7d8a93ef8a01c8d1946a2059f38f73b239 (diff) | |
| download | linux-118472ab8532e55f48395ef5764b354fe48b1d73.tar.xz | |
NVMe: Expose ns wwid through single sysfs entry
The method to uniquely identify a namespace depends on the controller's
specification revision level and implemented capabilities. This patch
has the driver figure this out and exports the unique string through a
single 'wwid' attribute so the user doesn't have this burden.
The longest namespace unique identifier is used if available. If not
available, the driver will concat the controller's vendor, serial,
and model with the namespace ID. The specification provides this as a
unique indentifier.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index a402a0e..bf3f143 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -91,6 +91,7 @@ struct nvme_ctrl { u32 max_hw_sectors; u32 stripe_size; u16 oncs; + u16 vid; atomic_t abort_limit; u8 event_limit; u8 vwc; |