diff options
Diffstat (limited to 'tools/testing/selftests/drivers/net/hw/tso.py')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/hw/tso.py | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/tools/testing/selftests/drivers/net/hw/tso.py b/tools/testing/selftests/drivers/net/hw/tso.py index 0998e68ebaf0..67f6c9ca9a64 100755 --- a/tools/testing/selftests/drivers/net/hw/tso.py +++ b/tools/testing/selftests/drivers/net/hw/tso.py @@ -1,7 +1,7 @@ #!/usr/bin/env python3 # SPDX-License-Identifier: GPL-2.0 -"""Run the tools/testing/selftests/net/csum testsuite.""" +"""A simple test for TSO.""" import fcntl import socket @@ -36,8 +36,11 @@ def tcp_sock_get_retrans(sock): def run_one_stream(cfg, ipver, remote_v4, remote_v6, should_lso): cfg.require_cmd("socat", local=False, remote=True) + # Set recv window clamp to avoid overwhelming receiver on debug kernels + # the 200k clamp should still let use reach > 15Gbps on real HW port = rand_port() - listen_cmd = f"socat -{ipver} -t 2 -u TCP-LISTEN:{port},reuseport /dev/null,ignoreeof" + listen_opts = f"{port},reuseport,tcp-window-clamp=200000" + listen_cmd = f"socat -{ipver} -t 2 -u TCP-LISTEN:{listen_opts} /dev/null,ignoreeof" with bkg(listen_cmd, host=cfg.remote, exit_wait=True) as nc: wait_port_listen(port, host=cfg.remote) @@ -68,7 +71,7 @@ def run_one_stream(cfg, ipver, remote_v4, remote_v6, should_lso): # Make sure we have order of magnitude more LSO packets than # retransmits, in case TCP retransmitted all the LSO packets. - ksft_lt(tcp_sock_get_retrans(sock), total_lso_wire / 4) + ksft_lt(tcp_sock_get_retrans(sock), total_lso_wire / 16) sock.close() if should_lso: @@ -184,28 +187,24 @@ def query_nic_features(cfg) -> None: cfg.wanted_features.add(f["name"]) cfg.hw_features = set() - hw_all_features_cmd = "" for f in features["hw"]["bits"]["bit"]: if f.get("value", False): - feature = f["name"] - cfg.hw_features.add(feature) - hw_all_features_cmd += f" {feature} on" - try: - ethtool(f"-K {cfg.ifname} {hw_all_features_cmd}") - except Exception as e: - ksft_pr(f"WARNING: failure enabling all hw features: {e}") - ksft_pr("partial gso feature detection may be impacted") + cfg.hw_features.add(f["name"]) # Check which features are supported via GSO partial cfg.partial_features = set() if 'tx-gso-partial' in cfg.hw_features: + seg_features = {f for f in cfg.hw_features if "segmentation" in f} + ethtool(f"-K {cfg.ifname} " + + " ".join(f"{f} on" for f in seg_features)) + ethtool(f"-K {cfg.ifname} tx-gso-partial off") no_partial = set() features = cfg.ethnl.features_get({"header": {"dev-index": cfg.ifindex}}) for f in features["active"]["bits"]["bit"]: no_partial.add(f["name"]) - cfg.partial_features = cfg.hw_features - no_partial + cfg.partial_features = seg_features - no_partial ethtool(f"-K {cfg.ifname} tx-gso-partial on") restore_wanted_features(cfg) @@ -236,6 +235,9 @@ def main() -> None: ("vxlan_csum", "", "tx-udp_tnl-csum-segmentation", ("vxlan", "id 100 dstport 4789 udpcsum", ("4", "6"))), ("gre", "4", "tx-gre-segmentation", ("gre", "", ("4", "6"))), ("gre", "6", "tx-gre-segmentation", ("ip6gre","", ("4", "6"))), + ("ip", "6", "tx-ipxip6-segmentation", ("ip6tnl","mode any", ("4", "6"))), + ("ip", "4", "tx-ipxip4-segmentation", ("sit","", ("6", ))), + ("ip", "4", "tx-ipxip4-segmentation", ("ipip","", ("4", ))), ) cases = [] |