kernel.git/net/mctp/device.c, branch linux-5.16.y

mctp: Pass flow data & flow release events to drivers

2021-10-29T12:23:51Z

Now that we have an extension for MCTP data in skbs, populate the flow when a key has been created for the packet, and add a device driver operation to inform of flow destruction. Includes a fix for a warning with test builds: Reported-by: kernel test robot Signed-off-by: Jeremy Kerr Signed-off-by: David S. Miller

mctp: Warn if pointer is set for a wrong dev type

2021-09-29T10:00:12Z

Should not occur but is a sanity check. May help tracking down Trinity reported issue https://lore.kernel.org/lkml/20210913030701.GA5926@xsang-OptiPlex-9020/ Signed-off-by: Matt Johnston Signed-off-by: David S. Miller

mctp: Add refcounts to mctp_dev

2021-09-29T10:00:11Z

Currently, we tie the struct mctp_dev lifetime to the underlying struct net_device, and hold/put that device as a proxy for a separate mctp_dev refcount. This works because we're not holding any references to the mctp_dev that are different from the netdev lifetime. In a future change we'll break that assumption though, as we'll need to hold mctp_dev references in a workqueue, which might live past the netdev unregister notification. In order to support that, this change introduces a refcount on the mctp_dev, currently taken by the net_device->mctp_ptr reference, and released on netdev unregister events. We can then use this for future references that might outlast the net device. Signed-off-by: Jeremy Kerr Signed-off-by: David S. Miller

mctp: Allow MCTP on tun devices

2021-09-29T10:00:11Z

Allowing TUN is useful for testing, to route packets to userspace or to tunnel between machines. Signed-off-by: Matt Johnston Signed-off-by: David S. Miller

mctp: Allow per-netns default networks

2021-07-29T14:06:50Z

Currently we have a compile-time default network (MCTP_INITIAL_DEFAULT_NET). This change introduces a default_net field on the net namespace, allowing future configuration for new interfaces. Signed-off-by: Matt Johnston Signed-off-by: David S. Miller

mctp: Add neighbour implementation

2021-07-29T14:06:50Z

Add an initial neighbour table implementation, to be used in the route output path. Signed-off-by: Matt Johnston Signed-off-by: David S. Miller

mctp: Add initial routing framework

2021-07-29T14:06:50Z

Add a simple routing table, and a couple of route output handlers, and the mctp packet_type & handler. Includes changes from Matt Johnston . Signed-off-by: Jeremy Kerr Signed-off-by: David S. Miller

mctp: Add device handling and netlink interface

2021-07-29T14:06:50Z

This change adds the infrastructure for managing MCTP netdevices; we add a pointer to the AF_MCTP-specific data to struct netdevice, and hook up the rtnetlink operations for adding and removing addresses. Includes changes from Matt Johnston . Signed-off-by: Jeremy Kerr Signed-off-by: David S. Miller