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[34.85.235.172]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7bcf05e6149sm1753387b3.11.2026.04.27.13.16.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Apr 2026 13:16:49 -0700 (PDT) From: Willem de Bruijn To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, edumazet@google.com, pabeni@redhat.com, horms@kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, Willem de Bruijn Subject: [PATCH net-next v5 2/3] selftests: net: py: add tc utility Date: Mon, 27 Apr 2026 16:14:34 -0400 Message-ID: <20260427201640.294694-3-willemdebruijn.kernel@gmail.com> X-Mailer: git-send-email 2.54.0.545.g6539524ca2-goog In-Reply-To: <20260427201640.294694-1-willemdebruijn.kernel@gmail.com> References: <20260427201640.294694-1-willemdebruijn.kernel@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Willem de Bruijn Add a wrapper similar to existing ip, ethtool, ... commands. Tc takes a slightly different syntax. Account for that. The first user is the next patch in this series, converting so_txtime to drv-net. Pacing offload is supported by selected qdiscs only. Signed-off-by: Willem de Bruijn --- .../testing/selftests/drivers/net/lib/py/__init__.py | 5 +++-- tools/testing/selftests/net/lib/py/__init__.py | 4 ++-- tools/testing/selftests/net/lib/py/utils.py | 12 +++++++++++- 3 files changed, 16 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/drivers/net/lib/py/__init__.py b/tools/testing/selftests/drivers/net/lib/py/__init__.py index 2b5ec0505672..09aac4ce67bc 100644 --- a/tools/testing/selftests/drivers/net/lib/py/__init__.py +++ b/tools/testing/selftests/drivers/net/lib/py/__init__.py @@ -23,7 +23,8 @@ try: NlError, RtnlFamily, DevlinkFamily, PSPFamily, Netlink from net.lib.py import CmdExitFailure from net.lib.py import bkg, cmd, bpftool, bpftrace, defer, ethtool, \ - fd_read_timeout, ip, rand_port, rand_ports, wait_port_listen, wait_file + fd_read_timeout, ip, rand_port, rand_ports, tc, wait_port_listen, \ + wait_file from net.lib.py import bpf_map_set, bpf_map_dump, bpf_prog_map_ids from net.lib.py import KsftSkipEx, KsftFailEx, KsftXfailEx from net.lib.py import ksft_disruptive, ksft_exit, ksft_pr, ksft_run, \ @@ -36,7 +37,7 @@ try: "NlError", "RtnlFamily", "DevlinkFamily", "PSPFamily", "Netlink", "CmdExitFailure", "bkg", "cmd", "bpftool", "bpftrace", "defer", "ethtool", - "fd_read_timeout", "ip", "rand_port", "rand_ports", + "fd_read_timeout", "ip", "rand_port", "rand_ports", "tc", "wait_port_listen", "wait_file", "bpf_map_set", "bpf_map_dump", "bpf_prog_map_ids", "KsftSkipEx", "KsftFailEx", "KsftXfailEx", diff --git a/tools/testing/selftests/net/lib/py/__init__.py b/tools/testing/selftests/net/lib/py/__init__.py index 7c81d86a7e97..64a8c1ed4950 100644 --- a/tools/testing/selftests/net/lib/py/__init__.py +++ b/tools/testing/selftests/net/lib/py/__init__.py @@ -14,7 +14,7 @@ from .netns import NetNS, NetNSEnter from .nsim import NetdevSim, NetdevSimDev from .utils import CmdExitFailure, fd_read_timeout, cmd, bkg, defer, \ bpftool, ip, ethtool, bpftrace, rand_port, rand_ports, wait_port_listen, \ - wait_file, tool + wait_file, tool, tc from .bpf import bpf_map_set, bpf_map_dump, bpf_prog_map_ids from .ynl import NlError, NlctrlFamily, YnlFamily, \ EthtoolFamily, NetdevFamily, RtnlFamily, RtnlAddrFamily @@ -29,7 +29,7 @@ __all__ = ["KSRC", "NetNS", "NetNSEnter", "CmdExitFailure", "fd_read_timeout", "cmd", "bkg", "defer", "bpftool", "ip", "ethtool", "bpftrace", "rand_port", "rand_ports", - "wait_port_listen", "wait_file", "tool", + "wait_port_listen", "wait_file", "tool", "tc", "bpf_map_set", "bpf_map_dump", "bpf_prog_map_ids", "NetdevSim", "NetdevSimDev", "NetshaperFamily", "DevlinkFamily", "PSPFamily", "NlError", diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py index ef31c0ba47fc..165adf33e1b5 100644 --- a/tools/testing/selftests/net/lib/py/utils.py +++ b/tools/testing/selftests/net/lib/py/utils.py @@ -224,7 +224,10 @@ class defer: def tool(name, args, json=None, ns=None, host=None): cmd_str = name + ' ' if json: - cmd_str += '--json ' + if name == 'tc': + cmd_str += '-json ' + else: + cmd_str += '--json ' cmd_str += args cmd_obj = cmd(cmd_str, ns=ns, host=host) if json: @@ -242,6 +245,13 @@ def ip(args, json=None, ns=None, host=None): return tool('ip', args, json=json, host=host) +def tc(args, json=None, ns=None, host=None): + """ Helper to call tc with standard set of optional args. """ + if ns: + args = f'-netns {ns} ' + args + return tool('tc', args, json=json, host=host) + + def ethtool(args, json=None, ns=None, host=None): return tool('ethtool', args, json=json, ns=ns, host=host) -- 2.54.0.545.g6539524ca2-goog