From 622f1b2fae2eea28a80b04f130e3bb54227699f8 Mon Sep 17 00:00:00 2001 From: Daniel Machon Date: Wed, 18 Jan 2023 22:08:27 +0100 Subject: net: dcb: add new rewrite table Add new rewrite table and all the required functions, offload hooks and bookkeeping for maintaining it. The rewrite table reuses the app struct, and the entire set of app selectors. As such, some bookeeping code can be shared between the rewrite- and the APP table. New functions for getting, setting and deleting entries has been added. Apart from operating on the rewrite list, these functions do not emit a DCB_APP_EVENT when the list os modified. The new dcb_getrewr does a lookup based on selector and priority and returns the protocol, so that mappings from priority to protocol, for a given selector and ifindex is obtained. Also, a new nested attribute has been added, that encapsulates one or more app structs. This attribute is used to distinguish the two tables. The dcb_lock used for the APP table is reused for the rewrite table. Signed-off-by: Daniel Machon Reviewed-by: Petr Machata Signed-off-by: David S. Miller --- include/net/dcbnl.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/net/dcbnl.h') diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h index 8841ab6c2de7..fe7dfb8bcb5b 100644 --- a/include/net/dcbnl.h +++ b/include/net/dcbnl.h @@ -19,6 +19,10 @@ struct dcb_app_type { u8 dcbx; }; +u16 dcb_getrewr(struct net_device *dev, struct dcb_app *app); +int dcb_setrewr(struct net_device *dev, struct dcb_app *app); +int dcb_delrewr(struct net_device *dev, struct dcb_app *app); + int dcb_setapp(struct net_device *, struct dcb_app *); u8 dcb_getapp(struct net_device *, struct dcb_app *); int dcb_ieee_setapp(struct net_device *, struct dcb_app *); @@ -113,6 +117,10 @@ struct dcbnl_rtnl_ops { /* apptrust */ int (*dcbnl_setapptrust)(struct net_device *, u8 *, int); int (*dcbnl_getapptrust)(struct net_device *, u8 *, int *); + + /* rewrite */ + int (*dcbnl_setrewr)(struct net_device *dev, struct dcb_app *app); + int (*dcbnl_delrewr)(struct net_device *dev, struct dcb_app *app); }; #endif /* __NET_DCBNL_H__ */ -- cgit v1.2.3