[PATCH bpf-next v2 4/7] tools/bpf: sync kernel uapi bpf.h to tools directory

[Björn Töpel]

From: Björn Töpel <bjorn.to...@intel.com>

Sync kernel uapi bpf.h "BPF_FUNC_xsk_redirect" change to the tools
directory.

Signed-off-by: Björn Töpel <bjorn.to...@intel.com>
---
 tools/include/uapi/linux/bpf.h | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index e7d57e89f25f..2568039b6265 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2319,6 +2319,17 @@ union bpf_attr {
  *             "**y**".
  *     Return
  *             0
+ *
+ * int bpf_xsk_redirect(struct xdp_buff *xdp_md)
+ *      Description
+ *             Redirect the packet to the attached XDP socket, if any.
+ *             An XDP socket can be attached to a network interface Rx
+ *             queue by passing the XDP_ATTACH option at bind point of
+ *             the socket.
+ *
+ *     Return
+ *             **XDP_REDIRECT** if there is an XDP socket attached to the Rx
+ *             queue receiving the frame, otherwise **XDP_PASS**.
  */
 #define __BPF_FUNC_MAPPER(FN)          \
        FN(unspec),                     \
@@ -2413,7 +2424,8 @@ union bpf_attr {
        FN(map_peek_elem),              \
        FN(msg_push_data),              \
        FN(msg_pop_data),               \
-       FN(rc_pointer_rel),
+       FN(rc_pointer_rel),             \
+       FN(xsk_redirect),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
-- 
2.19.1