psp: base PSP device support

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Add a netlink family for PSP and allow drivers to register support.

The "PSP device" is its own object. This allows us to perform more
flexible reference counting / lifetime control than if PSP information
was part of net_device. In the future we should also be able
to "delegate" PSP access to software devices, such as *vlan, veth
or netkit more easily.

Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250917000954.859376-3-daniel.zahka@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Jakub Kicinski 2025-09-16 17:09:29 -07:00 • committed by Paolo Abeni

parent a9266275fd

commit 00c94ca2b9

16 changed files with 777 additions and 0 deletions

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12

include/net/psp.h

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14

include/net/psp/functions.h

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100

include/net/psp/types.h

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