diff options
Diffstat (limited to '')
| -rw-r--r-- | net/core/devlink.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 0cd7a42dcec2..3af08f4562b5 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -2645,6 +2645,17 @@ devlink_param_find_by_name(struct list_head *param_list, return NULL; } +static struct devlink_param_item * +devlink_param_find_by_id(struct list_head *param_list, u32 param_id) +{ + struct devlink_param_item *param_item; + + list_for_each_entry(param_item, param_list, list) + if (param_item->param->id == param_id) + return param_item; + return NULL; +} + static bool devlink_param_cmode_is_supported(const struct devlink_param *param, enum devlink_param_cmode cmode) @@ -3966,6 +3977,72 @@ void devlink_params_unregister(struct devlink *devlink, } EXPORT_SYMBOL_GPL(devlink_params_unregister); +/** + * devlink_param_driverinit_value_get - get configuration parameter + * value for driver initializing + * + * @devlink: devlink + * @param_id: parameter ID + * @init_val: value of parameter in driverinit configuration mode + * + * This function should be used by the driver to get driverinit + * configuration for initialization after reload command. + */ +int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, + union devlink_param_value *init_val) +{ + struct devlink_param_item *param_item; + + if (!devlink->ops || !devlink->ops->reload) + return -EOPNOTSUPP; + + param_item = devlink_param_find_by_id(&devlink->param_list, param_id); + if (!param_item) + return -EINVAL; + + if (!param_item->driverinit_value_valid || + !devlink_param_cmode_is_supported(param_item->param, + DEVLINK_PARAM_CMODE_DRIVERINIT)) + return -EOPNOTSUPP; + + *init_val = param_item->driverinit_value; + + return 0; +} +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) +{ + struct devlink_param_item *param_item; + + param_item = devlink_param_find_by_id(&devlink->param_list, param_id); + if (!param_item) + return -EINVAL; + + if (!devlink_param_cmode_is_supported(param_item->param, + DEVLINK_PARAM_CMODE_DRIVERINIT)) + return -EOPNOTSUPP; + + param_item->driverinit_value = init_val; + param_item->driverinit_value_valid = true; + + return 0; +} +EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); + static int __init devlink_module_init(void) { return genl_register_family(&devlink_nl_family); |