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[RFC,bpf-next,v2,9/9] samples/bpf: add option to set the busy-poll budget

Message ID 20201105102812.152836-10-bjorn.topel@gmail.com (mailing list archive)
State RFC
Delegated to: BPF
Headers show
Series Introduce preferred busy-polling | expand

Commit Message

Björn Töpel Nov. 5, 2020, 10:28 a.m. UTC 
From: Björn Töpel <bjorn.topel@intel.com>

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

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 162444fa9627..0ed05e6e40e2 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -1482,6 +1482,11 @@  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)