[PATCH net-next 06/10] bpf: thunderx: Report bpf_prog ID during XDP_QUERY_PROG

[Martin KaFai Lau]

Add support to thunderx to report bpf_prog ID during XDP_QUERY_PROG.

Signed-off-by: Martin KaFai Lau <ka...@fb.com>
Cc: Sunil Goutham <sgout...@cavium.com>
Acked-by: Alexei Starovoitov <a...@fb.com>
Acked-by: Daniel Borkmann <dan...@iogearbox.net>
---
 drivers/net/ethernet/cavium/thunder/nicvf_main.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c 
b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index d6477af88085..00f8247f2a9a 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1761,9 +1761,16 @@ static int nicvf_xdp(struct net_device *netdev, struct 
netdev_xdp *xdp)
        switch (xdp->command) {
        case XDP_SETUP_PROG:
                return nicvf_xdp_setup(nic, xdp->prog);
-       case XDP_QUERY_PROG:
-               xdp->prog_attached = !!nic->xdp_prog;
+       case XDP_QUERY_PROG: {
+               const struct bpf_prog *xdp_prog;
+
+               xdp_prog = READ_ONCE(nic->xdp_prog);
+               if (xdp_prog)
+                       xdp->prog_id = xdp_prog->aux->id;
+               else
+                       xdp->prog_id = 0;
                return 0;
+       }
        default:
                return -EINVAL;
        }
-- 
2.9.3