Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
  net: qede: use extack in qede_parse_actions()
  net: qede: propagate extack through qede_flow_spec_validate()
  net: qede: use faked extack in qede_flow_spec_to_rule()
  net: qede: use extack in qede_parse_flow_attr()
  net: qede: add extack in qede_add_tc_flower_fltr()
  net: qede: use extack in qede_flow_parse_udp_v4()
  net: qede: use extack in qede_flow_parse_udp_v6()
  net: qede: use extack in qede_flow_parse_tcp_v4()
  net: qede: use extack in qede_flow_parse_tcp_v6()
  net: qede: use extack in qede_flow_parse_v4_common()
  net: qede: use extack in qede_flow_parse_v6_common()
  net: qede: use extack in qede_set_v4_tuple_to_profile()
  net: qede: use extack in qede_set_v6_tuple_to_profile()
  net: qede: use extack in qede_flow_parse_ports()
  net: usb: smsc95xx: stop lying about skb->truesize
  net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
  af_unix: Add dead flag to struct scm_fp_list.
  net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
  octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
  gve: Use ethtool_sprintf/puts() to fill stats strings
  ...

1 files changed, 41 insertions, 0 deletions

diff --git a/tools/testing/selftests/drivers/net/lib/py/load.py b/tools/testing/selftests/drivers/net/lib/py/load.py
new file mode 100644
index 000000000000..abdb677bdb1c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/load.py
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import time
+
+from lib.py import ksft_pr, cmd, ip, rand_port, wait_port_listen
+
+class GenerateTraffic:
+    def __init__(self, env):
+        env.require_cmd("iperf3", remote=True)
+
+        self.env = env
+
+        port = rand_port()
+        self._iperf_server = cmd(f"iperf3 -s -p {port}", background=True)
+        wait_port_listen(port)
+        time.sleep(0.1)
+        self._iperf_client = cmd(f"iperf3 -c {env.addr} -P 16 -p {port} -t 86400",
+                                 background=True, host=env.remote)
+
+        # Wait for traffic to ramp up
+        pkt = ip("-s link show dev " + env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
+        for _ in range(50):
+            time.sleep(0.1)
+            now = ip("-s link show dev " + env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
+            if now - pkt > 1000:
+                return
+            pkt = now
+        self.stop(verbose=True)
+        raise Exception("iperf3 traffic did not ramp up")
+
+    def stop(self, verbose=None):
+        self._iperf_client.process(terminate=True)
+        if verbose:
+            ksft_pr(">> Client:")
+            ksft_pr(self._iperf_client.stdout)
+            ksft_pr(self._iperf_client.stderr)
+        self._iperf_server.process(terminate=True)
+        if verbose:
+            ksft_pr(">> Server:")
+            ksft_pr(self._iperf_server.stdout)
+            ksft_pr(self._iperf_server.stderr)