From b40c51efefbc4a3ddec682f118adefea1ccf70dc Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Tue, 10 Aug 2021 16:24:19 +0300 Subject: devlink: Add API to register and unregister single parameter Currently device configuration parameters can be registered as an array. Due to this a constant array must be registered. A single driver supporting multiple devices each with different device capabilities end up registering all parameters even if it doesn't support it. One possible workaround a driver can do is, it registers multiple single entry arrays to overcome such limitation. Better is to provide a API that enables driver to register/unregister a single parameter. This also further helps in two ways. (1) to reduce the memory of devlink_param_entry by avoiding in registering parameters which are not supported by the device. (2) avoid generating multiple parameter add, delete, publish, unpublish, init value notifications for such unsupported parameters Signed-off-by: Parav Pandit Reviewed-by: Jiri Pirko Reviewed-by: Leon Romanovsky Signed-off-by: David S. Miller --- include/net/devlink.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/net') diff --git a/include/net/devlink.h b/include/net/devlink.h index 0a0becbcdc49..f6459ee77114 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -1645,6 +1645,10 @@ int devlink_params_register(struct devlink *devlink, void devlink_params_unregister(struct devlink *devlink, const struct devlink_param *params, size_t params_count); +int devlink_param_register(struct devlink *devlink, + const struct devlink_param *param); +void devlink_param_unregister(struct devlink *devlink, + const struct devlink_param *param); void devlink_params_publish(struct devlink *devlink); void devlink_params_unpublish(struct devlink *devlink); int devlink_port_params_register(struct devlink_port *devlink_port, -- cgit v1.2.3