Add support for "driverinit" configuration mode value for devlink_port
configuration parameters. Add devlink_port_param_driverinit_value_get()
function to help the driver get the value from devlink_port.

Also, move the common code to __devlink_param_driverinit_value_get()
to be used by both device and port params.

Cc: Jiri Pirko <redacted>
Signed-off-by: Vasundhara Volam <redacted>
---
include/net/devlink.h |  8 ++++++
net/core/devlink.c    | 67 ++++++++++++++++++++++++++++++++++++++-------------
2 files changed, 58 insertions(+), 17 deletions(-)

diff --git a/include/net/devlink.h b/include/net/devlink.h
index 98b8a66..09f3f43 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h

@@ -838,6 +838,14 @@ static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,

{
}

+static inline int
+devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
+					u32 param_id,
+					union devlink_param_value *init_val)
+{
+	return -EOPNOTSUPP;
+}