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samples/bpf: Add option to set the busy-poll budget 

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

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20201130185205.196029-11-bjorn.topel@gmail.com
zero-sugar-mainline-defconfig
Björn Töpel 2020-11-30 19:52:05 +01:00 committed by Daniel Borkmann
parent b35fc1482c
commit 41bf900fe2
1 changed files with 5 additions and 0 deletions
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samples/bpf/xdpsock_user.c
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@ -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)