nvme: Use non zero KATO for persistent discovery connections

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[ Upstream commit 2e48265501 ]

The NVMe Base Specification 2.1 states that:

"""
A host requests an explicit persistent connection ... by specifying a
non-zero Keep Alive Timer value in the Connect command.
"""

As such if we are starting a persistent connection to a discovery
controller and the KATO is currently 0 we need to update KATO to a non
zero value to avoid continuous timeouts on the target.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Alistair Francis 2025-09-02 13:52:11 +10:00 • committed by Greg Kroah-Hartman

parent 80413e2866

commit 9829067919

1 changed files with 7 additions and 1 deletions

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drivers/nvme/host/core.c

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