[PATCH bpf-next v3 10/10] samples/bpf: add option to set the busy-poll budget
From: Björn Töpel <hidden>
Date: 2020-11-19 08:31:59
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), the rest, xdp (express data path) · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds, David S. Miller, Jakub Kicinski, Jesper Dangaard Brouer, John Fastabend
From: Björn Töpel <redacted>
Support for the SO_BUSY_POLL_BUDGET setsockopt, via the batching
option ('b').
Signed-off-by: Björn Töpel <redacted>
---
samples/bpf/xdpsock_user.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index cb1eaee8a32b..deba623e9003 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c@@ -1479,6 +1479,11 @@ 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)
--
2.27.0