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Diffstat (limited to 'include/net/xdp_sock.h')
-rw-r--r--include/net/xdp_sock.h51
1 files changed, 39 insertions, 12 deletions
diff --git a/include/net/xdp_sock.h b/include/net/xdp_sock.h
index c9398ce7960f..e3780e4b74e1 100644
--- a/include/net/xdp_sock.h
+++ b/include/net/xdp_sock.h
@@ -69,7 +69,14 @@ struct xdp_umem {
/* Nodes are linked in the struct xdp_sock map_list field, and used to
* track which maps a certain socket reside in.
*/
-struct xsk_map;
+
+struct xsk_map {
+ struct bpf_map map;
+ struct list_head __percpu *flush_list;
+ spinlock_t lock; /* Synchronize map updates */
+ struct xdp_sock *xsk_map[];
+};
+
struct xsk_map_node {
struct list_head node;
struct xsk_map *map;
@@ -109,8 +116,6 @@ struct xdp_sock {
struct xdp_buff;
#ifdef CONFIG_XDP_SOCKETS
int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp);
-int xsk_rcv(struct xdp_sock *xs, struct xdp_buff *xdp);
-void xsk_flush(struct xdp_sock *xs);
bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs);
/* Used from netdev driver */
bool xsk_umem_has_addrs(struct xdp_umem *umem, u32 cnt);
@@ -134,6 +139,22 @@ void xsk_map_try_sock_delete(struct xsk_map *map, struct xdp_sock *xs,
struct xdp_sock **map_entry);
int xsk_map_inc(struct xsk_map *map);
void xsk_map_put(struct xsk_map *map);
+int __xsk_map_redirect(struct bpf_map *map, struct xdp_buff *xdp,
+ struct xdp_sock *xs);
+void __xsk_map_flush(struct bpf_map *map);
+
+static inline struct xdp_sock *__xsk_map_lookup_elem(struct bpf_map *map,
+ u32 key)
+{
+ struct xsk_map *m = container_of(map, struct xsk_map, map);
+ struct xdp_sock *xs;
+
+ if (key >= map->max_entries)
+ return NULL;
+
+ xs = READ_ONCE(m->xsk_map[key]);
+ return xs;
+}
static inline u64 xsk_umem_extract_addr(u64 addr)
{
@@ -224,15 +245,6 @@ static inline int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp)
return -ENOTSUPP;
}
-static inline int xsk_rcv(struct xdp_sock *xs, struct xdp_buff *xdp)
-{
- return -ENOTSUPP;
-}
-
-static inline void xsk_flush(struct xdp_sock *xs)
-{
-}
-
static inline bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs)
{
return false;
@@ -357,6 +369,21 @@ static inline u64 xsk_umem_adjust_offset(struct xdp_umem *umem, u64 handle,
return 0;
}
+static inline int __xsk_map_redirect(struct bpf_map *map, struct xdp_buff *xdp,
+ struct xdp_sock *xs)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline void __xsk_map_flush(struct bpf_map *map)
+{
+}
+
+static inline struct xdp_sock *__xsk_map_lookup_elem(struct bpf_map *map,
+ u32 key)
+{
+ return NULL;
+}
#endif /* CONFIG_XDP_SOCKETS */
#endif /* _LINUX_XDP_SOCK_H */