f898c16a06
Add tests focusing on indirection table configuration and creating extra RSS contexts in drivers which support it. $ export NETIF=eth0 REMOTE_... $ ./drivers/net/hw/rss_ctx.py KTAP version 1 1..8 ok 1 rss_ctx.test_rss_key_indir ok 2 rss_ctx.test_rss_context ok 3 rss_ctx.test_rss_context4 # Increasing queue count 44 -> 66 # Failed to create context 32, trying to test what we got ok 4 rss_ctx.test_rss_context32 # SKIP Tested only 31 contexts, wanted 32 ok 5 rss_ctx.test_rss_context_overlap ok 6 rss_ctx.test_rss_context_overlap2 # .. sprays traffic like a headless chicken .. not ok 7 rss_ctx.test_rss_context_out_of_order ok 8 rss_ctx.test_rss_context4_create_with_cfg # Totals: pass:6 fail:1 xfail:0 xpass:0 skip:1 error:0 Note that rss_ctx.test_rss_context_out_of_order fails with the device I tested with, but it seems to be a device / driver bug. Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20240626012456.2326192-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
58 lines
2 KiB
Python
58 lines
2 KiB
Python
# SPDX-License-Identifier: GPL-2.0
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import time
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from lib.py import ksft_pr, cmd, ip, rand_port, wait_port_listen
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class GenerateTraffic:
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def __init__(self, env, port=None):
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env.require_cmd("iperf3", remote=True)
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self.env = env
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if port is None:
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port = rand_port()
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self._iperf_server = cmd(f"iperf3 -s -1 -p {port}", background=True)
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wait_port_listen(port)
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time.sleep(0.1)
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self._iperf_client = cmd(f"iperf3 -c {env.addr} -P 16 -p {port} -t 86400",
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background=True, host=env.remote)
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# Wait for traffic to ramp up
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if not self._wait_pkts(pps=1000):
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self.stop(verbose=True)
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raise Exception("iperf3 traffic did not ramp up")
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def _wait_pkts(self, pkt_cnt=None, pps=None):
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"""
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Wait until we've seen pkt_cnt or until traffic ramps up to pps.
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Only one of pkt_cnt or pss can be specified.
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"""
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pkt_start = ip("-s link show dev " + self.env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
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for _ in range(50):
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time.sleep(0.1)
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pkt_now = ip("-s link show dev " + self.env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
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if pps:
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if pkt_now - pkt_start > pps / 10:
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return True
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pkt_start = pkt_now
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elif pkt_cnt:
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if pkt_now - pkt_start > pkt_cnt:
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return True
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return False
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def wait_pkts_and_stop(self, pkt_cnt):
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failed = not self._wait_pkts(pkt_cnt=pkt_cnt)
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self.stop(verbose=failed)
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def stop(self, verbose=None):
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self._iperf_client.process(terminate=True)
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if verbose:
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ksft_pr(">> Client:")
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ksft_pr(self._iperf_client.stdout)
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ksft_pr(self._iperf_client.stderr)
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self._iperf_server.process(terminate=True)
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if verbose:
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ksft_pr(">> Server:")
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ksft_pr(self._iperf_server.stdout)
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ksft_pr(self._iperf_server.stderr)
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