Update BPF comments to accurately reflect XDP usage.
Fixes: 97f91a7cf04ff ("bpf: add bpf_redirect_map helper routine")
Reported-by: Alexei Starovoitov <a...@kernel.org>
Signed-off-by: John Fastabend <john.fastab...@gmail.com>
---
include/uapi/linux/bpf.h | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 1106a8c..1ae061e 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -345,14 +345,20 @@ enum bpf_attach_type {
* int bpf_redirect(ifindex, flags)
* redirect to another netdev
* @ifindex: ifindex of the net device
- * @flags: bit 0 - if set, redirect to ingress instead of egress
- * other bits - reserved
- * Return: TC_ACT_REDIRECT
- * int bpf_redirect_map(key, map, flags)
+ * @flags:
+ * cls_bpf:
+ * bit 0 - if set, redirect to ingress instead of egress
+ * other bits - reserved
+ * xdp_bpf:
+ * all bits - reserved
+ * Return: cls_bpf: TC_ACT_REDIRECT
+ * xdp_bfp: XDP_REDIRECT
+ * int bpf_redirect_map(map, key, flags)
* redirect to endpoint in map
+ * @map: pointer to dev map
* @key: index in map to lookup
- * @map: fd of map to do lookup in
* @flags: --
+ * Return: XDP_REDIRECT on success or XDP_ABORT on error
*
* u32 bpf_get_route_realm(skb)
* retrieve a dst's tclassid
