diff mbox series

[bpf-next,v4,10/10] samples/bpf: add option to set the busy-poll budget

Message ID 20201130185205.196029-11-bjorn.topel@gmail.com
State New
Headers show
Series Introduce preferred busy-polling | expand

Commit Message

Björn Töpel Nov. 30, 2020, 6:52 p.m. UTC 
From: Björn Töpel <bjorn.topel@intel.com>

Support for the SO_BUSY_POLL_BUDGET setsockopt, via the batching
option ('b').

Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
---
 samples/bpf/xdpsock_user.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index 4622a17fafe1..036bd019e400 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -1480,6 +1480,11 @@  static void apply_setsockopt(struct xsk_socket_info *xsk)
 	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL,
 		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
 		exit_with_error(errno);
+
+	sock_opt = opt_batch_size;
+	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL_BUDGET,
+		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
+		exit_with_error(errno);
 }
 
 int main(int argc, char **argv)