When attaching an eBPF program to a device, ip link can force the XDP mode
by using the xdp{generic,drv,offload} keyword instead of just 'xdp'.
Document this behaviour also in the help output.
Signed-off-by: Matteo Croce <mcr...@redhat.com>
Fixes: 14683814 ("bpf: add xdpdrv for requesting XDP driver mode")
Fixes: 1b5e8094 ("bpf: allow requesting XDP HW offload")
---
ip/iplink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ip/iplink.c b/ip/iplink.c
index b5519201..3a0cf459 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -98,7 +98,7 @@ void iplink_usage(void)
" [ trust { on | off} ] ]\n"
" [ node_guid { eui64 } ]\n"
" [ port_guid { eui64 } ]\n"
- " [ xdp { off |\n"
+ " [ { xdp | xdpgeneric | xdpdrv |
xdpoffload } { off |\n"
" object FILE [ section NAME ]
[ verbose ] |\n"
" pinned FILE } ]\n"
" [ master DEVICE ][ vrf NAME ]\n"
--
2.20.1
