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nvme: add sysfs attribute to change admin timeout per nvme controller

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Currently, there is no method to adjust the timeout values on a
per-controller basis with nvme admin queues.
Add an admin_timeout attribute to nvme so that different nvme controllers
which may have different timeout requirements can have custom admin
timeouts set.

The admin timeout is also applied to the fabrics queue (fabrics_q).
The fabrics queue is utilized for fabric-specific administrative and
control operations, such as Connect and Property Get/Set commands.

Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Mohamed Khalfella <mkhalfella@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Maurizio Lombardi 2026-05-14 10:32:51 +02:00 • committed by Keith Busch
commit 61b99f24f0
4 changed files with 44 additions and 1 deletions
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