[PATCH v2 net-next 7/9] bpf: ixgbe: Report bpf_prog ID during XDP_QUERY_PROG

[Martin KaFai Lau]

Add support to ixgbe to report bpf_prog ID during XDP_QUERY_PROG.

Signed-off-by: Martin KaFai Lau <ka...@fb.com>
Cc: Alexander Duyck <alexander.h.du...@intel.com>
Cc: John Fastabend <john.fastab...@gmail.com>
Acked-by: Alexei Starovoitov <a...@fb.com>
Acked-by: Daniel Borkmann <dan...@iogearbox.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 812319ab77db..37b0e5a741d8 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -9799,9 +9799,19 @@ static int ixgbe_xdp(struct net_device *dev, struct 
netdev_xdp *xdp)
        switch (xdp->command) {
        case XDP_SETUP_PROG:
                return ixgbe_xdp_setup(dev, xdp->prog);
-       case XDP_QUERY_PROG:
-               xdp->prog_attached = !!(adapter->xdp_prog);
+       case XDP_QUERY_PROG: {
+               const struct bpf_prog *xdp_prog;
+
+               xdp_prog = adapter->xdp_prog;
+               if (xdp_prog) {
+                       xdp->prog_id = xdp_prog->aux->id;
+                       xdp->prog_attached = true;
+               } else {
+                       xdp->prog_id = 0;
+                       xdp->prog_attached = false;
+               }
                return 0;
+       }
        default:
                return -EINVAL;
        }
-- 
2.9.3