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Diffstat (limited to 'net/xdp/xsk.h')
-rw-r--r--net/xdp/xsk.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/net/xdp/xsk.h b/net/xdp/xsk.h
index 4cfd106bdb53..455ddd480f3d 100644
--- a/net/xdp/xsk.h
+++ b/net/xdp/xsk.h
@@ -4,6 +4,20 @@
#ifndef XSK_H_
#define XSK_H_
+/* Masks for xdp_umem_page flags.
+ * The low 12-bits of the addr will be 0 since this is the page address, so we
+ * can use them for flags.
+ */
+#define XSK_NEXT_PG_CONTIG_SHIFT 0
+#define XSK_NEXT_PG_CONTIG_MASK BIT_ULL(XSK_NEXT_PG_CONTIG_SHIFT)
+
+/* Flags for the umem flags field.
+ *
+ * The NEED_WAKEUP flag is 1 due to the reuse of the flags field for public
+ * flags. See inlude/uapi/include/linux/if_xdp.h.
+ */
+#define XDP_UMEM_USES_NEED_WAKEUP BIT(1)
+
struct xdp_ring_offset_v1 {
__u64 producer;
__u64 consumer;
@@ -17,9 +31,25 @@ 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_ */