[PATCH 1/1] nvme: always enable multipath

John Meneghini jmeneghi at redhat.com
Fri Nov 22 10:29:57 PST 2024


On 11/22/24 13:15, Keith Busch wrote:> If you want to change the driver to prevent exposing subsequent
> namepsace path block devices when multipath is not enabled, that is
> probably fine.

OK, we'll work on another patch to do this. The plan will be:

When CONFIG_NVME_MULTIPATH=y, you get multipath.c and full support for both nvme multipath (CMIC/NMIC = 1) and non-multipath 
devices (CMIC/NMIC=0) devices with 1 /dev entry per namespace.

When CONFIG_NVME_MULTIPATH=n, you get support for non-multipath devices (CMIC/NMIC=0) devices, but multipath devices 
(CMIC/NMIC=1) will only expose the first controller/namespace path.

/John




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