devlink: introduce possibility to expose info about nested devlinks

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In mlx5, there is a devlink instance created for PCI device. Also, one
separate devlink instance is created for auxiliary device that
represents the netdev of uplink port. This relation is currently
invisible to the devlink user.

Benefit from the rel infrastructure and allow for nested devlink
instance to set the relationship for the nested-in devlink instance.
Note that there may be many nested instances, therefore use xarray to
hold the list of rel_indexes for individual nested instances.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jiri Pirko 2023-09-13 09:12:42 +02:00 • committed by David S. Miller

parent 9473bc0119

commit c5e1bf8a51

4 changed files with 54 additions and 0 deletions

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include/net/devlink.h

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