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authorBjörn Töpel <bjorn.topel@intel.com>2020-05-20 22:20:50 +0300
committerAlexei Starovoitov <ast@kernel.org>2020-05-22 03:31:26 +0300
commitd20a1676df7e4c3c23d73299159811a50e4854bc (patch)
tree5492329a8b772bb2e1291b680ebb5e544107364e /net/xdp/xsk.h
parent44ac082b30dc2a05a7e23ed7e17b5f9513873386 (diff)
downloadlinux-d20a1676df7e4c3c23d73299159811a50e4854bc.tar.xz
xsk: Move xskmap.c to net/xdp/
The XSKMAP is partly implemented by net/xdp/xsk.c. Move xskmap.c from kernel/bpf/ to net/xdp/, which is the logical place for AF_XDP related code. Also, move AF_XDP struct definitions, and function declarations only used by AF_XDP internals into net/xdp/xsk.h. Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200520192103.355233-3-bjorn.topel@gmail.com
Diffstat (limited to 'net/xdp/xsk.h')
-rw-r--r--net/xdp/xsk.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/net/xdp/xsk.h b/net/xdp/xsk.h
index 4cfd106bdb53..d6a0979050e6 100644
--- a/net/xdp/xsk.h
+++ b/net/xdp/xsk.h
@@ -17,9 +17,25 @@ struct xdp_mmap_offsets_v1 {
struct xdp_ring_offset_v1 cr;
};
+/* 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_node {
+ struct list_head node;
+ struct xsk_map *map;
+ struct xdp_sock **map_entry;
+};
+
static inline struct xdp_sock *xdp_sk(struct sock *sk)
{
return (struct xdp_sock *)sk;
}
+bool xsk_is_setup_for_bpf_map(struct xdp_sock *xs);
+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);
+
#endif /* XSK_H_ */