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selftests/net: psock: Generalize stats check

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Generalize stats check code so that callers can specify the expected
packets.

Signed-off-by: Joe Damato <joe@dama.to>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260728160935.4128982-3-joe@dama.to
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Joe Damato
2026-07-28 09:09:27 -07:00
committed by Jakub Kicinski
parent 0982666c1b
commit 9404fe514e
1 changed files with 6 additions and 5 deletions
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11
tools/testing/selftests/net/psock_snd.c
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@@ -440,7 +440,7 @@ static void parse_opts(int argc, char **argv)
error(1, 0, "option aux data (-a) conflicts with drop (-D)");
}
static void check_packet_stats(int fd)
static void check_packet_stats(int fd, unsigned int expected_packets)
{
struct tpacket_stats st = {};
socklen_t len = sizeof(st);
@@ -459,8 +459,9 @@ static void check_packet_stats(int fd)
if (st.tp_drops == 0)
error(1, 0, "stats: expected drops but tp_drops == 0");
} else {
if (st.tp_packets != 1)
error(1, 0, "stats: tp_packets %u != 1", st.tp_packets);
if (st.tp_packets != expected_packets)
error(1, 0, "stats: tp_packets %u != %u",
st.tp_packets, expected_packets);
if (st.tp_drops != 0)
error(1, 0, "stats: tp_drops %u != 0", st.tp_drops);
@@ -490,7 +491,7 @@ static void run_test(void)
total_len = do_tx();
if (cfg_drop) {
check_packet_stats(fds);
check_packet_stats(fds, 0);
goto out;
}
@@ -498,7 +499,7 @@ static void run_test(void)
if (cfg_payload_len == DATA_LEN && !cfg_use_vlan) {
do_rx(fds, total_len - sizeof(struct virtio_net_hdr),
tbuf + sizeof(struct virtio_net_hdr), true);
check_packet_stats(fds);
check_packet_stats(fds, 1);
}
do_rx(fdr, cfg_payload_len, tbuf + total_len - cfg_payload_len, false);