devlink: split out netlink code

Move out the netlink glue into a separate file.
Leave the ops in the old file because we'd have to export a ton
of functions. Going forward we should switch to split ops which
will let us to put the new ops in the netlink.c file.

Pure code move, no functional changes.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index 1c74293c6c25..fdf7634b0cd1 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h
@@ -97,6 +97,20 @@ devlinks_xa_find_get_next(struct net *net, unsigned long *indexp,
 			  xa_mark_t filter);
 
 /* Netlink */
+#define DEVLINK_NL_FLAG_NEED_PORT		BIT(0)
+#define DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT	BIT(1)
+#define DEVLINK_NL_FLAG_NEED_RATE		BIT(2)
+#define DEVLINK_NL_FLAG_NEED_RATE_NODE		BIT(3)
+#define DEVLINK_NL_FLAG_NEED_LINECARD		BIT(4)
+
+enum devlink_multicast_groups {
+	DEVLINK_MCGRP_CONFIG,
+};
+
+extern const struct genl_small_ops devlink_nl_ops[56];
+
+struct devlink *devlink_get_from_attrs(struct net *net, struct nlattr **attrs);
+
 void devlink_notify_unregister(struct devlink *devlink);
 void devlink_notify_register(struct devlink *devlink);
 
@@ -104,6 +118,9 @@ void devlink_notify_register(struct devlink *devlink);
 int devlink_port_netdevice_event(struct notifier_block *nb,
 				 unsigned long event, void *ptr);
 
+struct devlink_port *
+devlink_port_get_from_info(struct devlink *devlink, struct genl_info *info);
+
 /* Reload */
 bool devlink_reload_actions_valid(const struct devlink_ops *ops);
 int devlink_reload(struct devlink *devlink, struct net *dest_net,
@@ -115,3 +132,17 @@ static inline bool devlink_reload_supported(const struct devlink_ops *ops)
 {
 	return ops->reload_down && ops->reload_up;
 }
+
+/* Line cards */
+struct devlink_linecard;
+
+struct devlink_linecard *
+devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info);
+void devlink_linecard_put(struct devlink_linecard *linecard);
+
+/* Rates */
+struct devlink_rate *
+devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info);
+struct devlink_rate *
+devlink_rate_node_get_from_info(struct devlink *devlink,
+				struct genl_info *info);