pm24.git/include/net/devlink.h, branch v5.2-rc1

devlink: Change devlink health locking mechanism

2019-05-01T15:07:03Z

The devlink health reporters create/destroy and user commands currently use the devlink->lock as a locking mechanism. Different reporters have different rules in the driver and are being created/destroyed during different stages of driver load/unload/running. So during execution of a reporter recover the flow can go through another reporter's destroy and create. Such flow leads to deadlock trying to lock a mutex already held. With the new locking mechanism the different reporters share mutex lock only to protect access to shared reporters list. Added refcount per reporter, to protect the reporters from destroy while being used. Signed-off-by: Moshe Shemesh Signed-off-by: Jiri Pirko Acked-by: Jakub Kicinski Signed-off-by: David S. Miller

net: devlink: Add extack to shared buffer operations

2019-04-23T05:09:32Z

Add extack to shared buffer set operations, so that meaningful error messages could be propagated to the user. Signed-off-by: Ido Schimmel Acked-by: Jiri Pirko Reviewed-by: Petr Machata Cc: Jakub Kicinski Signed-off-by: David S. Miller

net: devlink: introduce devlink_compat_switch_id_get() helper

2019-04-05T00:42:36Z

Introduce devlink_compat_switch_id_get() helper which fills up switch_id according to passed netdev pointer. Call it directly from dev_get_port_parent_id() as a fallback when ndo_get_port_parent_id is not defined for given netdev. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net: devlink: extend port attrs for switch ID

2019-04-05T00:42:36Z

Extend devlink_port_attrs_set() to pass switch ID for ports which are part of switch and store it in port attrs. For other ports, this is NULL. Note that this allows the driver to group devlink ports into one or more switches according to the actual topology. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net: devlink: convert devlink_port_attrs bools to bits

2019-04-05T00:42:36Z

In order to save space in the struct, convert bools to bits. Signed-off-by: Jiri Pirko Reviewed-by: Florian Fainelli Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller

net: devlink: remove unused devlink_port_get_phys_port_name() function

2019-03-28T19:55:30Z

Now it is unused, remove it. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net: devlink: introduce devlink_compat_phys_port_name_get()

2019-03-28T19:55:30Z

Introduce devlink_compat_phys_port_name_get() helper that gets the physical port name for specified netdevice according to devlink port attributes. Call this helper from dev_get_phys_port_name() in case ndo_get_phys_port_name is not defined. Signed-off-by: Jiri Pirko Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller

net: replace ndo_get_devlink with ndo_get_devlink_port

2019-03-28T19:55:30Z

Follow-up patch is going to need a devlink port instance according to a netdev. Devlink port instance should be always available when devlink is used. So change the recently introduced ndo_get_devlink to ndo_get_devlink_port. With that, adjust the wrapper for the only user to get devlink pointer. Signed-off-by: Jiri Pirko Reviewed-by: Michal Kubecek Reviewed-by: Florian Fainelli Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller

net: devlink: select NET_DEVLINK from drivers

2019-03-24T18:55:31Z

Some drivers are becoming more dependent on NET_DEVLINK being selected in configuration. With upcoming compat functions, the behavior would be wrong in case devlink was not compiled in. So make the drivers select NET_DEVLINK and rely on the functions being there, not just stubs. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net: devlink: add port type spinlock

2019-03-24T18:55:31Z

Add spinlock to protect port type and type_dev pointer consistency. Without that, userspace may see inconsistent type and type_dev combinations. Signed-off-by: Jiri Pirko v1->v2: - rebased Signed-off-by: David S. Miller