netdev - [PATCH net-next v2 RFC 5/8] devlink: Add support for driverinit set value for devlink

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Message-Id: <1544518008-15289-6-git-send-email-vasundhara-v.volam@broadcom.com>
Date:   Tue, 11 Dec 2018 14:16:45 +0530
From:   Vasundhara Volam <vasundhara-v.volam@...adcom.com>
To:     davem@...emloft.net
Cc:     michael.chan@...adcom.com, jiri@...lanox.com,
        jakub.kicinski@...ronome.com, netdev@...r.kernel.org
Subject: [PATCH net-next v2 RFC 5/8] devlink: Add support for driverinit set value for devlink_port

Add support for "driverinit" configuration mode value for devlink_port
configuration parameters. Add devlink_port_param_driverinit_value_set()
function to help the driver set the value to devlink_port.

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

Cc: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
---
 include/net/devlink.h | 11 +++++++++
 net/core/devlink.c    | 64 +++++++++++++++++++++++++++++++++++++++------------
 2 files changed, 60 insertions(+), 15 deletions(-)

diff --git a/include/net/devlink.h b/include/net/devlink.h
index 09f3f43..f78cb8d 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -581,6 +581,9 @@ int devlink_port_params_register(struct devlink_port *devlink_port,
 void devlink_port_params_unregister(struct devlink_port *devlink_port,
 				    const struct devlink_param *params,
 				    size_t params_count);
+int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
+					    u32 param_id,
+					    union devlink_param_value init_val);
 struct devlink_region *devlink_region_create(struct devlink *devlink,
 					     const char *region_name,
 					     u32 region_max_snapshots,
@@ -846,6 +849,14 @@ static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
 	return -EOPNOTSUPP;
 }
 
+static inline int
+devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
+					u32 param_id,
+					union devlink_param_value init_val)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline struct devlink_region *
 devlink_region_create(struct devlink *devlink,
 		      const char *region_name,
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 752ac86..669d62e 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4715,24 +4715,15 @@ int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
 }
 EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get);
 
-/**
- *	devlink_param_driverinit_value_set - set value of configuration
- *					     parameter for driverinit
- *					     configuration mode
- *
- *	@devlink: devlink
- *	@param_id: parameter ID
- *	@init_val: value of parameter to set for driverinit configuration mode
- *
- *	This function should be used by the driver to set driverinit
- *	configuration mode default value.
- */
-int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
-				       union devlink_param_value init_val)
+static int
+__devlink_param_driverinit_value_set(struct devlink *devlink,
+				     struct list_head *param_list, u32 param_id,
+				     union devlink_param_value init_val,
+				     enum devlink_command cmd)
 {
 	struct devlink_param_item *param_item;
 
-	param_item = devlink_param_find_by_id(&devlink->param_list, param_id);
+	param_item = devlink_param_find_by_id(param_list, param_id);
 	if (!param_item)
 		return -EINVAL;
 
@@ -4749,6 +4740,27 @@ int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
 	devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW);
 	return 0;
 }
+
+/**
+ *	devlink_param_driverinit_value_set - set value of configuration
+ *					     parameter for driverinit
+ *					     configuration mode
+ *
+ *	@devlink: devlink
+ *	@param_id: parameter ID
+ *	@init_val: value of parameter to set for driverinit configuration mode
+ *
+ *	This function should be used by the driver to set driverinit
+ *	configuration mode default value.
+ */
+int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
+				       union devlink_param_value init_val)
+{
+	return __devlink_param_driverinit_value_set(devlink,
+						    &devlink->param_list,
+						    param_id, init_val,
+						    DEVLINK_CMD_PARAM_NEW);
+}
 EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set);
 
 /**
@@ -4881,6 +4893,28 @@ int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
 EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_get);
 
 /**
+ *     devlink_port_param_driverinit_value_set - set value of configuration
+ *                                               parameter for driverinit
+ *                                               configuration mode
+ *
+ *     @devlink_port: devlink_port
+ *     @param_id: parameter ID
+ *     @init_val: value of parameter to set for driverinit configuration mode
+ *
+ *     This function should be used by the driver to set driverinit
+ *     configuration mode default value.
+ */
+int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
+					    u32 param_id,
+					    union devlink_param_value init_val)
+{
+	return __devlink_param_driverinit_value_set(devlink_port->devlink,
+						    &devlink_port->param_list,
+						    param_id, init_val, 0);
+}
+EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_set);
+
+/**
  *	devlink_region_create - create a new address region
  *
  *	@devlink: devlink
-- 
1.8.3.1