#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0
+import errno
from lib.py import ksft_run, ksft_exit, ksft_pr
from lib.py import ksft_ge, ksft_eq, ksft_in, ksft_true, ksft_raises, KsftSkipEx, KsftXfailEx
from lib.py import EthtoolFamily, NetdevFamily, RtnlFamily, NlError
from lib.py import NetDrvEnv
+from lib.py import ip, defer
ethnl = EthtoolFamily()
netfam = NetdevFamily()
ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.ifindex')
+def check_down(cfg) -> None:
+ try:
+ qstat = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+ except NlError as e:
+ if e.error == errno.EOPNOTSUPP:
+ raise KsftSkipEx("qstats not supported by the device")
+ raise
+
+ ip(f"link set dev {cfg.dev['ifname']} down")
+ defer(ip, f"link set dev {cfg.dev['ifname']} up")
+
+ qstat2 = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+ for k, v in qstat.items():
+ ksft_ge(qstat2[k], qstat[k], comment=f"{k} went backwards on device down")
+
+ # exercise per-queue API to make sure that "device down" state
+ # is handled correctly and doesn't crash
+ netfam.qstats_get({"ifindex": cfg.ifindex, "scope": "queue"}, dump=True)
+
+
def main() -> None:
with NetDrvEnv(__file__) as cfg:
- ksft_run([check_pause, check_fec, pkt_byte_sum, qstat_by_ifindex],
+ ksft_run([check_pause, check_fec, pkt_byte_sum, qstat_by_ifindex,
+ check_down],
args=(cfg, ))
ksft_exit()