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| author | Mina Almasry <almasrymina@google.com> | 2024-09-10 20:14:46 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-09-12 06:44:31 +0300 |
| commit | 3efd7ab46d0aebc3e567a9846e79a98dbad3291c (patch) | |
| tree | f3e70f0be52305422acef6c74c8b2ac9182a72d8 /Documentation/netlink | |
| parent | 7c88f86576f382a5037f7acf2fce796ccafba4db (diff) | |
| download | linux-3efd7ab46d0aebc3e567a9846e79a98dbad3291c.tar.xz | |
net: netdev netlink api to bind dma-buf to a net device
API takes the dma-buf fd as input, and binds it to the netdevice. The
user can specify the rx queues to bind the dma-buf to.
Suggested-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240910171458.219195-3-almasrymina@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/netlink')
| -rw-r--r-- | Documentation/netlink/specs/netdev.yaml | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index 959755be4d7f..4930e8142aa6 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -457,6 +457,39 @@ attribute-sets: Number of times driver re-started accepting send requests to this queue from the stack. type: uint + - + name: queue-id + subset-of: queue + attributes: + - + name: id + - + name: type + - + name: dmabuf + attributes: + - + name: ifindex + doc: netdev ifindex to bind the dmabuf to. + type: u32 + checks: + min: 1 + - + name: queues + doc: receive queues to bind the dmabuf to. + type: nest + nested-attributes: queue-id + multi-attr: true + - + name: fd + doc: dmabuf file descriptor to bind. + type: u32 + - + name: id + doc: id of the dmabuf binding + type: u32 + checks: + min: 1 operations: list: @@ -619,6 +652,20 @@ operations: - rx-bytes - tx-packets - tx-bytes + - + name: bind-rx + doc: Bind dmabuf to netdev + attribute-set: dmabuf + flags: [ admin-perm ] + do: + request: + attributes: + - ifindex + - fd + - queues + reply: + attributes: + - id mcast-groups: list: |