net/hw/tso.py

2 # SPDX-License-Identifier: GPL-2.0
40     listen_cmd = f"socat -{ipver} -t 2 -u TCP-LISTEN:{port},reuseport /dev/null,ignoreeof"
64         # TCP falls back to non-LSO.
75                 ksft_ge(qstat_new['tx-hw-gso-packets'] -
76                         qstat_old['tx-hw-gso-packets'],
78                         comment="Number of LSO super-packets with LSO enabled")
80                 ksft_ge(qstat_new['tx-hw-gso-wire-packets'] -
81                         qstat_old['tx-hw-gso-wire-packets'],
83                         comment="Number of LSO wire-packets with LSO enabled")
86                 ksft_lt(qstat_new['tx-hw-gso-packets'] -
87                         qstat_old['tx-hw-gso-packets'],
88                         15, comment="Number of LSO super-packets with LSO disabled")
90                 ksft_lt(qstat_new['tx-hw-gso-wire-packets'] -
91                         qstat_old['tx-hw-gso-wire-packets'],
92                         500, comment="Number of LSO wire-packets with LSO disabled")
96     local_v4  = NetDrvEpEnv.nsim_v4_pfx + "1"
97     local_v6  = NetDrvEpEnv.nsim_v6_pfx + "1"
106 …ip(f"link add {tun_type}-ksft type {tun_type} {tun_arg} local {local_addr} remote {remote_addr} de…
107     defer(ip, f"link del {tun_type}-ksft")
108     ip(f"link set dev {tun_type}-ksft up")
109     ip(f"addr add {local_v4}/24 dev {tun_type}-ksft")
110     ip(f"addr add {local_v6}/64 dev {tun_type}-ksft")
112 …ip(f"link add {tun_type}-ksft type {tun_type} {tun_arg} local {remote_addr} remote {local_addr} de…
114     defer(ip, f"link del {tun_type}-ksft", host=cfg.remote)
115     ip(f"link set dev {tun_type}-ksft up", host=cfg.remote)
116     ip(f"addr add {remote_v4}/24 dev {tun_type}-ksft", host=cfg.remote)
117     ip(f"addr add {remote_v6}/64 dev {tun_type}-ksft", host=cfg.remote)
139         tun_partial = tun and tun[1]
140         # Tunnel which can silently fall back to gso-partial
141         has_gso_partial = tun and 'tx-gso-partial' in cfg.features
146             if 'tx-tcp-mangleid-segmentation' not in cfg.features:
147                 ethtool(f"-K {cfg.ifname} tx-tcp-mangleid-segmentation on")
148                 defer(ethtool, f"-K {cfg.ifname} tx-tcp-mangleid-segmentation off")
151         ethtool(f"-K {cfg.ifname} {feature} off")
153             ethtool(f"-K {cfg.ifname} tx-gso-partial off")
157         # For compatible tunnels only - just GSO partial, not specific feature.
159             ethtool(f"-K {cfg.ifname} tx-gso-partial on")
165             ethtool(f"-K {cfg.ifname} {feature} on")
174 def query_nic_features(cfg) -> None:
180     features = cfg.ethnl.features_get({"header": {"dev-index": cfg.ifindex}})
186     if 'tx-gso-partial' in cfg.features:
187         ethtool(f"-K {cfg.ifname} tx-gso-partial off")
190         features = cfg.ethnl.features_get({"header": {"dev-index": cfg.ifindex}})
193         cfg.partial_features = cfg.features - no_partial
194         ethtool(f"-K {cfg.ifname} tx-gso-partial on")
198         if 'tx-hw-gso-packets' in stats[0]:
199             ksft_pr("Detected qstat for LSO super-packets")
201         if 'tx-hw-gso-wire-packets' in stats[0]:
202             ksft_pr("Detected qstat for LSO wire-packets")
206 def main() -> None:
215             ("",            "4", "tx-tcp-segmentation",           None),
216             ("",            "6", "tx-tcp6-segmentation",          None),
217 …("vxlan",        "", "tx-udp_tnl-segmentation",       ("vxlan",  True,  "id 100 dstport 4789 noudp…
218 …("vxlan_csum",   "", "tx-udp_tnl-csum-segmentation",  ("vxlan",  False, "id 100 dstport 4789 udpcs…
219             ("gre",         "4", "tx-gre-segmentation",           ("ipgre",  False,  "")),
220             ("gre",         "6", "tx-gre-segmentation",           ("ip6gre", False,  "")),
227                 if info[1] and outer_ipver != info[1]: