* Re: [PATCH v2] dts: update dts check format script and resolve errors
From: Koushik Bhargav Nimoji @ 2026-06-24 16:47 UTC (permalink / raw)
To: luca.vizzarro, patrickrobb1997; +Cc: dev, abailey, ahassick, lylavoie
In-Reply-To: <20260618204525.1010218-1-knimoji@iol.unh.edu>
[-- Attachment #1: Type: text/plain, Size: 81764 bytes --]
Recheck-request: github-robot: build
On Thu, Jun 18, 2026 at 4:45 PM Koushik Bhargav Nimoji <knimoji@iol.unh.edu>
wrote:
> This patch updates the tool versions used in the dts-check-format.sh
> script; by doing so, formatting and type hinting errors that weren't
> previously visible have now appeared. This patch also resolves those
> new formatting and type hinting errors.
>
> Signed-off-by: Koushik Bhargav Nimoji <knimoji@iol.unh.edu>
> ---
> v2:
> *Fixed type hinting issues stemming from ParamSpec
> issues.
> *Fixed tarball write type parameter for copying
> directories from one node to another.
> ---
> dts/api/packet.py | 15 +-
> dts/api/testpmd/__init__.py | 12 +-
> dts/api/testpmd/types.py | 6 +-
> dts/framework/config/__init__.py | 24 +-
> dts/framework/config/test_run.py | 12 +-
> dts/framework/context.py | 8 +-
> .../interactive_remote_session.py | 2 +-
> .../remote_session/interactive_shell.py | 6 +-
> .../remote_session/remote_session.py | 4 +-
> dts/framework/remote_session/shell_pool.py | 2 +-
> dts/framework/settings.py | 8 +-
> dts/framework/testbed_model/cpu.py | 2 +-
> .../testbed_model/traffic_generator/scapy.py | 6 +-
> .../testbed_model/traffic_generator/trex.py | 6 +-
> dts/framework/utils.py | 13 +-
> dts/poetry.lock | 368 ++++++++++++++----
> dts/pyproject.toml | 8 +-
> dts/tests/TestSuite_cryptodev_throughput.py | 4 +-
> dts/tests/TestSuite_port_control.py | 3 +-
> .../TestSuite_single_core_forward_perf.py | 2 +-
> 20 files changed, 372 insertions(+), 139 deletions(-)
>
> diff --git a/dts/api/packet.py b/dts/api/packet.py
> index 094a1b7a9d..3dda18e781 100644
> --- a/dts/api/packet.py
> +++ b/dts/api/packet.py
> @@ -87,9 +87,9 @@ def send_packets_and_capture(
> CapturingTrafficGenerator,
> )
>
> - assert isinstance(
> - get_ctx().func_tg, CapturingTrafficGenerator
> - ), "Cannot capture with a non-capturing traffic generator"
> + assert isinstance(get_ctx().func_tg, CapturingTrafficGenerator), (
> + "Cannot capture with a non-capturing traffic generator"
> + )
> tg: CapturingTrafficGenerator = cast(CapturingTrafficGenerator,
> get_ctx().func_tg)
> # TODO: implement @requires for types of traffic generator
> packets = adjust_addresses(packets)
> @@ -308,8 +308,7 @@ def _verify_l2_frame(received_packet: Ether,
> contains_l3: bool) -> bool:
> if contains_l3:
> expected_src_mac = get_ctx().topology.sut_port_egress.mac_address
> log_debug(
> - f"Comparing received src mac '{received_packet.src}' "
> - f"with expected '{expected_src_mac}'."
> + f"Comparing received src mac '{received_packet.src}' with
> expected '{expected_src_mac}'."
> )
> if received_packet.src != expected_src_mac:
> return False
> @@ -344,9 +343,9 @@ def assess_performance_by_packet(
> PerformanceTrafficGenerator,
> )
>
> - assert isinstance(
> - get_ctx().perf_tg, PerformanceTrafficGenerator
> - ), "Cannot send performance traffic with non-performance traffic
> generator"
> + assert isinstance(get_ctx().perf_tg, PerformanceTrafficGenerator), (
> + "Cannot send performance traffic with non-performance traffic
> generator"
> + )
> tg: PerformanceTrafficGenerator = cast(PerformanceTrafficGenerator,
> get_ctx().perf_tg)
> # TODO: implement @requires for types of traffic generator
> return tg.calculate_traffic_and_stats(packet, duration, send_mpps)
> diff --git a/dts/api/testpmd/__init__.py b/dts/api/testpmd/__init__.py
> index e9187440bb..f4767c6aeb 100644
> --- a/dts/api/testpmd/__init__.py
> +++ b/dts/api/testpmd/__init__.py
> @@ -76,7 +76,9 @@ def _requires_stopped_ports(func: TestPmdMethod) ->
> TestPmdMethod:
> """
>
> @functools.wraps(func)
> - def _wrapper(self: "TestPmd", *args: P.args, **kwargs: P.kwargs) ->
> Any:
> + def _wrapper(
> + self: "TestPmd", *args: P.args, **kwargs: P.kwargs
> + ) -> Callable[Concatenate["TestPmd", P], Any]:
> if self.ports_started:
> self._logger.debug("Ports need to be stopped to continue.")
> self.stop_all_ports()
> @@ -100,7 +102,9 @@ def _requires_started_ports(func: TestPmdMethod) ->
> TestPmdMethod:
> """
>
> @functools.wraps(func)
> - def _wrapper(self: "TestPmd", *args: P.args, **kwargs: P.kwargs) ->
> Any:
> + def _wrapper(
> + self: "TestPmd", *args: P.args, **kwargs: P.kwargs
> + ) -> Callable[Concatenate["TestPmd", P], Any]:
> if not self.ports_started:
> self._logger.debug("Ports need to be started to continue.")
> self.start_all_ports()
> @@ -128,7 +132,9 @@ def _add_remove_mtu(mtu: int = 1500) ->
> Callable[[TestPmdMethod], TestPmdMethod]
>
> def decorator(func: TestPmdMethod) -> TestPmdMethod:
> @functools.wraps(func)
> - def wrapper(self: "TestPmd", *args: P.args, **kwargs: P.kwargs)
> -> Any:
> + def wrapper(
> + self: "TestPmd", *args: P.args, **kwargs: P.kwargs
> + ) -> Callable[Concatenate["TestPmd", P], Any]:
> original_mtu = self.ports[0].mtu
> self.set_port_mtu_all(mtu=mtu, verify=False)
> retval = func(self, *args, **kwargs)
> diff --git a/dts/api/testpmd/types.py b/dts/api/testpmd/types.py
> index 0d322aece2..af3263682e 100644
> --- a/dts/api/testpmd/types.py
> +++ b/dts/api/testpmd/types.py
> @@ -279,7 +279,7 @@ def from_list_string(cls, names: str) -> Self:
> Returns:
> An instance of this flag.
> """
> - flag = cls(0)
> + flag: RSSOffloadTypesFlag = cls(0)
> for name in names.split():
> flag |= cls.from_str(name)
> return flag
> @@ -960,7 +960,7 @@ def from_list_string(cls, names: str) -> Self:
> Returns:
> An instance of this flag.
> """
> - flag = cls(0)
> + flag: PacketOffloadFlag = cls(0)
> for name in names.split():
> flag |= cls.from_str(name)
> return flag
> @@ -1168,7 +1168,7 @@ def from_list_string(cls, names: str) -> Self:
> Returns:
> An instance of this flag.
> """
> - flag = cls(0)
> + flag: RtePTypes = cls(0)
> for name in names.split():
> flag |= cls.from_str(name)
> return flag
> diff --git a/dts/framework/config/__init__.py
> b/dts/framework/config/__init__.py
> index d2f0138e4a..a8861894b7 100644
> --- a/dts/framework/config/__init__.py
> +++ b/dts/framework/config/__init__.py
> @@ -85,9 +85,9 @@ def validate_port_links(self) -> Self:
> sut_node_port_peer = existing_port_links.get(
> (self.test_run.system_under_test_node, link.sut_port),
> None
> )
> - assert (
> - sut_node_port_peer is not None
> - ), f"Invalid SUT node port specified for link
> port_topology.{link_idx}."
> + assert sut_node_port_peer is not None, (
> + f"Invalid SUT node port specified for link
> port_topology.{link_idx}."
> + )
>
> assert sut_node_port_peer is False or sut_node_port_peer ==
> link.right, (
> f"The SUT node port for link port_topology.{link_idx} is "
> @@ -97,9 +97,9 @@ def validate_port_links(self) -> Self:
> tg_node_port_peer = existing_port_links.get(
> (self.test_run.traffic_generator_node, link.tg_port), None
> )
> - assert (
> - tg_node_port_peer is not None
> - ), f"Invalid TG node port specified for link
> port_topology.{link_idx}."
> + assert tg_node_port_peer is not None, (
> + f"Invalid TG node port specified for link
> port_topology.{link_idx}."
> + )
>
> assert tg_node_port_peer is False or sut_node_port_peer ==
> link.left, (
> f"The TG node port for link port_topology.{link_idx} is "
> @@ -117,16 +117,16 @@ def validate_test_run_against_nodes(self) -> Self:
> sut_node_name = self.test_run.system_under_test_node
> sut_node = next((n for n in self.nodes if n.name ==
> sut_node_name), None)
>
> - assert (
> - sut_node is not None
> - ), f"The system_under_test_node {sut_node_name} is not a valid
> node name."
> + assert sut_node is not None, (
> + f"The system_under_test_node {sut_node_name} is not a valid
> node name."
> + )
>
> tg_node_name = self.test_run.traffic_generator_node
> tg_node = next((n for n in self.nodes if n.name ==
> tg_node_name), None)
>
> - assert (
> - tg_node is not None
> - ), f"The traffic_generator_name {tg_node_name} is not a valid
> node name."
> + assert tg_node is not None, (
> + f"The traffic_generator_name {tg_node_name} is not a valid
> node name."
> + )
>
> return self
>
> diff --git a/dts/framework/config/test_run.py
> b/dts/framework/config/test_run.py
> index 76e24d1785..3cd643981d 100644
> --- a/dts/framework/config/test_run.py
> +++ b/dts/framework/config/test_run.py
> @@ -233,9 +233,9 @@ def test_suite_spec(self) -> "TestSuiteSpec":
> from framework.test_suite import find_by_name
>
> test_suite_spec = find_by_name(self.test_suite_name)
> - assert (
> - test_suite_spec is not None
> - ), f"{self.test_suite_name} is not a valid test suite module
> name."
> + assert test_suite_spec is not None, (
> + f"{self.test_suite_name} is not a valid test suite module
> name."
> + )
> return test_suite_spec
>
> @cached_property
> @@ -384,9 +384,9 @@ def convert_from_string(cls, data: Any) -> Any:
> @model_validator(mode="after")
> def verify_distinct_nodes(self) -> Self:
> """Verify that each side of the link has distinct nodes."""
> - assert (
> - self.left.node_type != self.right.node_type
> - ), "Linking ports of the same node is unsupported."
> + assert self.left.node_type != self.right.node_type, (
> + "Linking ports of the same node is unsupported."
> + )
> return self
>
>
> diff --git a/dts/framework/context.py b/dts/framework/context.py
> index 8f1021dc96..efe9af0645 100644
> --- a/dts/framework/context.py
> +++ b/dts/framework/context.py
> @@ -60,9 +60,9 @@ def reset(self) -> None:
> else _field.default
> )
>
> - assert (
> - default is not MISSING
> - ), "{LocalContext.__name__} must have defaults on all fields!"
> + assert default is not MISSING, (
> + "{LocalContext.__name__} must have defaults on all
> fields!"
> + )
>
> setattr(self, _field.name, default)
>
> @@ -108,7 +108,7 @@ def filter_cores(
> ) -> Callable[[type["TestProtocol"]], Callable]:
> """Decorates functions that require a temporary update to the lcore
> specifier."""
>
> - def decorator(func: type["TestProtocol"]) -> Callable:
> + def decorator(func: type["TestProtocol"]) -> Callable[P,
> type["TestProtocol"]]:
> @functools.wraps(func)
> def wrapper(*args: P.args, **kwargs: P.kwargs) -> Any:
> local_ctx = get_ctx().local
> diff --git a/dts/framework/remote_session/interactive_remote_session.py
> b/dts/framework/remote_session/interactive_remote_session.py
> index c8156b4345..fc42e862bc 100644
> --- a/dts/framework/remote_session/interactive_remote_session.py
> +++ b/dts/framework/remote_session/interactive_remote_session.py
> @@ -109,7 +109,7 @@ def _connect(self) -> None:
> self._logger.debug(traceback.format_exc())
> self._logger.warning(e)
> self._logger.info(
> - f"Retrying interactive session connection: retry
> number {retry_attempt +1}"
> + f"Retrying interactive session connection: retry
> number {retry_attempt + 1}"
> )
> else:
> break
> diff --git a/dts/framework/remote_session/interactive_shell.py
> b/dts/framework/remote_session/interactive_shell.py
> index a65cbce209..6bba58a4f6 100644
> --- a/dts/framework/remote_session/interactive_shell.py
> +++ b/dts/framework/remote_session/interactive_shell.py
> @@ -50,7 +50,9 @@
> def only_active(func: InteractiveShellMethod) -> InteractiveShellMethod:
> """This decorator will skip running the method if the SSH channel is
> not active."""
>
> - def _wrapper(self: "InteractiveShell", *args: P.args, **kwargs:
> P.kwargs) -> R | None:
> + def _wrapper(
> + self: "InteractiveShell", *args: P.args, **kwargs: P.kwargs
> + ) -> Callable[P, "InteractiveShell"] | None:
> if self._ssh_channel.active:
> return func(self, *args, **kwargs)
> return None
> @@ -167,7 +169,7 @@ def start_application(self, prompt: str | None = None,
> add_to_shell_pool: bool =
> break
> except InteractiveSSHTimeoutError:
> self._logger.info(
> - f"Interactive shell failed to start (attempt
> {attempt+1} out of "
> + f"Interactive shell failed to start (attempt {attempt
> + 1} out of "
> f"{self._init_attempts})"
> )
> else:
> diff --git a/dts/framework/remote_session/remote_session.py
> b/dts/framework/remote_session/remote_session.py
> index 158325bb7f..fb5f6fedf5 100644
> --- a/dts/framework/remote_session/remote_session.py
> +++ b/dts/framework/remote_session/remote_session.py
> @@ -72,9 +72,7 @@ def __post_init__(self, init_stdout: str, init_stderr:
> str) -> None:
> def __str__(self) -> str:
> """Format the command outputs."""
> return (
> - f"stdout: '{self.stdout}'\n"
> - f"stderr: '{self.stderr}'\n"
> - f"return_code: '{self.return_code}'"
> + f"stdout: '{self.stdout}'\nstderr:
> '{self.stderr}'\nreturn_code: '{self.return_code}'"
> )
>
>
> diff --git a/dts/framework/remote_session/shell_pool.py
> b/dts/framework/remote_session/shell_pool.py
> index 241737eab3..710107c6cb 100644
> --- a/dts/framework/remote_session/shell_pool.py
> +++ b/dts/framework/remote_session/shell_pool.py
> @@ -74,7 +74,7 @@ def unregister_shell(self, shell: "InteractiveShell") ->
> None:
>
> def start_new_pool(self) -> None:
> """Start a new shell pool."""
> - self._logger.debug(f"Starting new shell pool and advancing to
> level {self.pool_level+1}.")
> + self._logger.debug(f"Starting new shell pool and advancing to
> level {self.pool_level + 1}.")
> self._pools.append(set())
>
> def terminate_current_pool(self) -> None:
> diff --git a/dts/framework/settings.py b/dts/framework/settings.py
> index b08373b7ea..f329677804 100644
> --- a/dts/framework/settings.py
> +++ b/dts/framework/settings.py
> @@ -249,9 +249,9 @@ def error(self, message) -> NoReturn:
> if _is_from_env(action):
> action_name = _get_action_name(action)
> env_var_name = _get_env_var_name(action)
> - assert (
> - env_var_name is not None
> - ), "Action was set from environment, but no environment
> variable name was found."
> + assert env_var_name is not None, (
> + "Action was set from environment, but no environment
> variable name was found."
> + )
> env_var_value = os.environ.get(env_var_name)
>
> message = message.replace(
> @@ -260,7 +260,7 @@ def error(self, message) -> NoReturn:
> )
>
> print(f"{self.prog}: error: {message}\n", file=sys.stderr)
> - self.exit(2, "For help and usage, " "run the command with the
> --help flag.\n")
> + self.exit(2, "For help and usage, run the command with the --help
> flag.\n")
>
>
> class _EnvVarHelpFormatter(ArgumentDefaultsHelpFormatter):
> diff --git a/dts/framework/testbed_model/cpu.py
> b/dts/framework/testbed_model/cpu.py
> index 6e2ecca080..a9471709dd 100644
> --- a/dts/framework/testbed_model/cpu.py
> +++ b/dts/framework/testbed_model/cpu.py
> @@ -105,7 +105,7 @@ def __init__(self, lcore_list: list[int] | list[str] |
> list[LogicalCore] | str)
>
> # the input lcores may not be sorted
> self._lcore_list.sort()
> - self._lcore_str =
> f'{",".join(self._get_consecutive_lcores_range(self._lcore_list))}'
> + self._lcore_str =
> f"{','.join(self._get_consecutive_lcores_range(self._lcore_list))}"
>
> @property
> def lcore_list(self) -> list[int]:
> diff --git a/dts/framework/testbed_model/traffic_generator/scapy.py
> b/dts/framework/testbed_model/traffic_generator/scapy.py
> index c6e9006205..62853a34e4 100644
> --- a/dts/framework/testbed_model/traffic_generator/scapy.py
> +++ b/dts/framework/testbed_model/traffic_generator/scapy.py
> @@ -314,9 +314,9 @@ def __init__(self, tg_node: Node, config:
> ScapyTrafficGeneratorConfig, **kwargs:
> kwargs: Additional keyword arguments. Supported arguments
> correspond to the parameters
> of :meth:`PythonShell.__init__` in this case.
> """
> - assert (
> - tg_node.config.os == OS.linux
> - ), "Linux is the only supported OS for scapy traffic generation"
> + assert tg_node.config.os == OS.linux, (
> + "Linux is the only supported OS for scapy traffic generation"
> + )
>
> super().__init__(tg_node=tg_node, config=config, **kwargs)
>
> diff --git a/dts/framework/testbed_model/traffic_generator/trex.py
> b/dts/framework/testbed_model/traffic_generator/trex.py
> index 2abfbfc5ab..d53791b0a6 100644
> --- a/dts/framework/testbed_model/traffic_generator/trex.py
> +++ b/dts/framework/testbed_model/traffic_generator/trex.py
> @@ -95,9 +95,9 @@ def __init__(self, tg_node: Node, config:
> TrexTrafficGeneratorConfig) -> None:
> tg_node: TG node the TRex instance is operating on.
> config: Traffic generator config provided for TRex instance.
> """
> - assert (
> - tg_node.config.os == OS.linux
> - ), "Linux is the only supported OS for trex traffic generation"
> + assert tg_node.config.os == OS.linux, (
> + "Linux is the only supported OS for trex traffic generation"
> + )
>
> super().__init__(tg_node=tg_node, config=config)
> self._tg_node_config = tg_node.config
> diff --git a/dts/framework/utils.py b/dts/framework/utils.py
> index 9917ffbfaa..5753c1b7fe 100644
> --- a/dts/framework/utils.py
> +++ b/dts/framework/utils.py
> @@ -21,7 +21,7 @@
> import tarfile
> from enum import Enum, Flag
> from pathlib import Path
> -from typing import Any, Callable
> +from typing import Any, Callable, Literal, TypeAlias, cast
>
> from scapy.layers.inet import IP, TCP, UDP, Ether
> from scapy.packet import Packet
> @@ -39,6 +39,8 @@
> rf"(?:(sut|tg)\.)?({REGEX_FOR_IDENTIFIER})" # right side
> )
>
> +Tar_modes: TypeAlias = Literal["w:gz", "w:bz2", "w:xz", "w:tar"]
> +
>
> def expand_range(range_str: str) -> list[int]:
> """Process `range_str` into a list of integers.
> @@ -154,7 +156,11 @@ def extension(self) -> str:
> For other compression formats, the extension will be in the format
> 'tar.{compression format}'.
> """
> - return f"{self.value}" if self == self.none else
> f"{type(self).none.value}.{self.value}"
> + return (
> + f"{self.value}"
> + if self == self.none
> + else f"{TarCompressionFormat.none.value}.{self.value}"
> + )
>
>
> def convert_to_list_of_string(value: Any | list[Any]) -> list[str]:
> @@ -207,7 +213,8 @@ def filter_func(tarinfo: tarfile.TarInfo) ->
> tarfile.TarInfo | None:
> return None
>
> target_tarball_path =
> dir_path.with_suffix(f".{compress_format.extension}")
> - with tarfile.open(target_tarball_path, f"w:{compress_format.value}")
> as tar:
> + tarball_mode = cast(Tar_modes, f"w:{compress_format.value}")
> + with tarfile.open(target_tarball_path, tarball_mode) as tar:
> tar.add(dir_path, arcname=dir_path.name,
> filter=create_filter_function(exclude))
>
> return target_tarball_path
> diff --git a/dts/poetry.lock b/dts/poetry.lock
> index 0ad5d32b85..eda7cc2fec 100644
> --- a/dts/poetry.lock
> +++ b/dts/poetry.lock
> @@ -1,4 +1,4 @@
> -# This file is automatically @generated by Poetry 1.8.3 and should not be
> changed by hand.
> +# This file is automatically @generated by Poetry 2.3.2 and should not be
> changed by hand.
>
> [[package]]
> name = "aenum"
> @@ -6,6 +6,7 @@ version = "3.1.15"
> description = "Advanced Enumerations (compatible with Python's stdlib
> Enum), NamedTuples, and NamedConstants"
> optional = false
> python-versions = "*"
> +groups = ["main"]
> files = [
> {file = "aenum-3.1.15-py2-none-any.whl", hash =
> "sha256:27b1710b9d084de6e2e695dab78fe9f269de924b51ae2850170ee7e1ca6288a5"},
> {file = "aenum-3.1.15-py3-none-any.whl", hash =
> "sha256:e0dfaeea4c2bd362144b87377e2c61d91958c5ed0b4daf89cb6f45ae23af6288"},
> @@ -18,17 +19,62 @@ version = "0.7.0"
> description = "Reusable constraint types to use with typing.Annotated"
> optional = false
> python-versions = ">=3.8"
> +groups = ["main"]
> files = [
> {file = "annotated_types-0.7.0-py3-none-any.whl", hash =
> "sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53"},
> {file = "annotated_types-0.7.0.tar.gz", hash =
> "sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89"},
> ]
>
> +[[package]]
> +name = "ast-serialize"
> +version = "0.5.0"
> +description = "Python bindings for mypy AST serialization"
> +optional = false
> +python-versions = ">=3.7"
> +groups = ["dev"]
> +files = [
> + {file = "ast_serialize-0.5.0-cp314-cp314t-macosx_10_12_x86_64.whl",
> hash =
> "sha256:8f5c14f169eb0972c0c21bada5358b23d6047c76583b005234f865b11f1fa00a"},
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> version = "4.2.1"
> description = "Modern password hashing for your software and your servers"
> optional = false
> python-versions = ">=3.7"
> +groups = ["main"]
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> description = "Foreign Function Interface for Python calling C code."
> optional = false
> python-versions = ">=3.8"
> +groups = ["main", "dev"]
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> description = "cryptography is a package which provides cryptographic
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> optional = false
> python-versions = "!=3.9.0,!=3.9.1,>=3.7"
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> description = "Decorators for Humans"
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>
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>
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> description = "Type system extensions for programs checked with the mypy
> type checker."
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> python-versions = ">=3.5"
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>
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>
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> name = "pydantic"
> @@ -350,6 +544,7 @@ version = "2.10.3"
> description = "Data validation using Python type hints"
> optional = false
> python-versions = ">=3.8"
> +groups = ["main"]
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>
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> -timezone = ["tzdata"]
> +timezone = ["tzdata ; python_version >= \"3.9\" and platform_system ==
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>
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> description = "Core functionality for Pydantic validation and
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> optional = false
> python-versions = ">=3.8"
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> optional = false
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> hash =
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> =
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> hash =
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> "sha256:1e15bc8c94513dae2a40cc9ef07c94fdd4ecc9e29dabebeebe170f952322c9e3"},
> + {file = "ruff-0.15.16-py3-none-win32.whl", hash =
> "sha256:580378f7bd4aa25f72e74aa54948a9622f142b1e509521dd10902e886681cc1e"},
> + {file = "ruff-0.15.16-py3-none-win_amd64.whl", hash =
> "sha256:408256017284eddf98fff77b29aa4fb30f586042d535b2d9befc6512f400aaec"},
> + {file = "ruff-0.15.16-py3-none-win_arm64.whl", hash =
> "sha256:8cd61783afb39638a7133ef0d2dfb1e91277593962f81b5a8423eb0b888a6121"},
> + {file = "ruff-0.15.16.tar.gz", hash =
> "sha256:d05e78d38c78caf020b03789e25106c93017db5a0cb6e2819885018c61343b78"},
> ]
>
> [[package]]
> @@ -597,6 +796,7 @@ version = "2.6.1"
> description = "Scapy: interactive packet manipulation tool"
> optional = false
> python-versions = "<4,>=3.7"
> +groups = ["main"]
> files = [
> {file = "scapy-2.6.1-py3-none-any.whl", hash =
> "sha256:88a998572049b511a1f3e44f4aa7c62dd39c6ea2aa1bb58434f503956641789d"},
> {file = "scapy-2.6.1.tar.gz", hash =
> "sha256:7600d7e2383c853e5c3a6e05d37e17643beebf2b3e10d7914dffcc3bc3c6e6c5"},
> @@ -613,6 +813,7 @@ version = "0.10.2"
> description = "Python Library for Tom's Obvious, Minimal Language"
> optional = false
> python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
> +groups = ["dev"]
> files = [
> {file = "toml-0.10.2-py2.py3-none-any.whl", hash =
> "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
> {file = "toml-0.10.2.tar.gz", hash =
> "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
> @@ -624,6 +825,8 @@ version = "2.2.1"
> description = "A lil' TOML parser"
> optional = false
> python-versions = ">=3.8"
> +groups = ["dev"]
> +markers = "python_version == \"3.10\""
> files = [
> {file = "tomli-2.2.1-cp311-cp311-macosx_10_9_x86_64.whl", hash =
> "sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249"},
> {file = "tomli-2.2.1-cp311-cp311-macosx_11_0_arm64.whl", hash =
> "sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6"},
> @@ -665,6 +868,7 @@ version = "2.0.0.10"
> description = "Typing stubs for invoke"
> optional = false
> python-versions = ">=3.7"
> +groups = ["dev"]
> files = [
> {file = "types-invoke-2.0.0.10.tar.gz", hash =
> "sha256:a54d7ecdc19e0c22cd2786ef2e64c2631715c78eba8a1bf40b511d0608f33a88"},
> {file = "types_invoke-2.0.0.10-py3-none-any.whl", hash =
> "sha256:2404e4279601fa96e14ef68321fd10a660a828677aabdcaeef6a5189778084ef"},
> @@ -672,13 +876,14 @@ files = [
>
> [[package]]
> name = "types-paramiko"
> -version = "3.5.0.20240928"
> +version = "4.0.0.20260518"
> description = "Typing stubs for paramiko"
> optional = false
> -python-versions = ">=3.8"
> +python-versions = ">=3.10"
> +groups = ["dev"]
> files = [
> - {file = "types-paramiko-3.5.0.20240928.tar.gz", hash =
> "sha256:79dd9b2ee510b76a3b60d8ac1f3f348c45fcecf01347ca79e14db726bbfc442d"},
> - {file = "types_paramiko-3.5.0.20240928-py3-none-any.whl", hash =
> "sha256:cda0aff4905fe8efe4b5448331a80e943d42a796bd4beb77a3eed3485bc96a85"},
> + {file = "types_paramiko-4.0.0.20260518-py3-none-any.whl", hash =
> "sha256:0ffaf1a6eb796833a49653cba4c7be13af51c8269d75234972d6239763dda270"},
> + {file = "types_paramiko-4.0.0.20260518.tar.gz", hash =
> "sha256:286f6830945cba63797eedf375ed87138d93198121253afe66c5d6dbcf91318d"},
> ]
>
> [package.dependencies]
> @@ -686,13 +891,14 @@ cryptography = ">=37.0.0"
>
> [[package]]
> name = "types-pyyaml"
> -version = "6.0.12.20240917"
> +version = "6.0.12.20260518"
> description = "Typing stubs for PyYAML"
> optional = false
> -python-versions = ">=3.8"
> +python-versions = ">=3.10"
> +groups = ["dev"]
> files = [
> - {file = "types-PyYAML-6.0.12.20240917.tar.gz", hash =
> "sha256:d1405a86f9576682234ef83bcb4e6fff7c9305c8b1fbad5e0bcd4f7dbdc9c587"},
> - {file = "types_PyYAML-6.0.12.20240917-py3-none-any.whl", hash =
> "sha256:392b267f1c0fe6022952462bf5d6523f31e37f6cea49b14cee7ad634b6301570"},
> + {file = "types_pyyaml-6.0.12.20260518-py3-none-any.whl", hash =
> "sha256:d2150f75a231c9fe9c7463bd29487d93e60bac90400287351384bc2284eba7cd"},
> + {file = "types_pyyaml-6.0.12.20260518.tar.gz", hash =
> "sha256:d917f83fb38462550338c1297faedd860b3ec83912b96b1e3d73255f7473e466"},
> ]
>
> [[package]]
> @@ -701,17 +907,33 @@ version = "4.12.2"
> description = "Backported and Experimental Type Hints for Python 3.8+"
> optional = false
> python-versions = ">=3.8"
> +groups = ["main", "dev"]
> +markers = "python_version < \"3.15\""
> files = [
> {file = "typing_extensions-4.12.2-py3-none-any.whl", hash =
> "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
> {file = "typing_extensions-4.12.2.tar.gz", hash =
> "sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8"},
> ]
>
> +[[package]]
> +name = "typing-extensions"
> +version = "4.15.0"
> +description = "Backported and Experimental Type Hints for Python 3.9+"
> +optional = false
> +python-versions = ">=3.9"
> +groups = ["main", "dev"]
> +markers = "python_version >= \"3.15\""
> +files = [
> + {file = "typing_extensions-4.15.0-py3-none-any.whl", hash =
> "sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548"},
> + {file = "typing_extensions-4.15.0.tar.gz", hash =
> "sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466"},
> +]
> +
> [[package]]
> name = "wrapt"
> version = "1.17.2"
> description = "Module for decorators, wrappers and monkey patching."
> optional = false
> python-versions = ">=3.8"
> +groups = ["main"]
> files = [
> {file = "wrapt-1.17.2-cp310-cp310-macosx_10_9_universal2.whl", hash =
> "sha256:3d57c572081fed831ad2d26fd430d565b76aa277ed1d30ff4d40670b1c0dd984"},
> {file = "wrapt-1.17.2-cp310-cp310-macosx_10_9_x86_64.whl", hash =
> "sha256:b5e251054542ae57ac7f3fba5d10bfff615b6c2fb09abeb37d2f1463f841ae22"},
> @@ -795,6 +1017,6 @@ files = [
> ]
>
> [metadata]
> -lock-version = "2.0"
> +lock-version = "2.1"
> python-versions = "^3.10"
> -content-hash =
> "aa6dff54827602c89ee125019291965de50d7a471ca48add889ea23aa5fd9b2f"
> +content-hash =
> "1ca3cdf5bf98c528845b5e22169322db8912fe437988635f4ebea088b2079463"
> diff --git a/dts/pyproject.toml b/dts/pyproject.toml
> index 8b061c3cee..b639af65b6 100644
> --- a/dts/pyproject.toml
> +++ b/dts/pyproject.toml
> @@ -28,12 +28,12 @@ aenum = "^3.1.15"
> pydantic = "^2.9.2"
>
> [tool.poetry.group.dev.dependencies]
> -mypy = "^1.13.0"
> +mypy = "^2.1.0"
> toml = "^0.10.2"
> -ruff = "^0.8.1"
> -types-paramiko = "^3.5.0.20240928"
> +ruff = "^0.15.16"
> +types-paramiko = "^4.0.0.20260518"
> types-invoke = "^2.0.0.10"
> -types-pyyaml = "^6.0.12.20240917"
> +types-pyyaml = "^6.0.12.20260518"
>
> [build-system]
> requires = ["poetry-core>=1.0.0"]
> diff --git a/dts/tests/TestSuite_cryptodev_throughput.py
> b/dts/tests/TestSuite_cryptodev_throughput.py
> index af0a5680ab..2fc0d8779a 100644
> --- a/dts/tests/TestSuite_cryptodev_throughput.py
> +++ b/dts/tests/TestSuite_cryptodev_throughput.py
> @@ -101,12 +101,12 @@ def _print_stats(self, test_vals: list[dict[str, int
> | float | str]]) -> None:
> print(f"{'Throughput Results'.center(border_len)}\n{'=' *
> border_len}")
> for k, v in test_vals[0].items():
> print(f"|{k.title():<{element_len}}", end="")
> - print(f"|\n{'='*border_len}")
> + print(f"|\n{'=' * border_len}")
>
> for test_val in test_vals:
> for k, v in test_val.items():
> print(f"|{v:<{element_len}}", end="")
> - print(f"|\n{'='*border_len}")
> + print(f"|\n{'=' * border_len}")
>
> def _verify_throughput(
> self,
> diff --git a/dts/tests/TestSuite_port_control.py
> b/dts/tests/TestSuite_port_control.py
> index 6be47838d0..b51fdc2959 100644
> --- a/dts/tests/TestSuite_port_control.py
> +++ b/dts/tests/TestSuite_port_control.py
> @@ -44,8 +44,7 @@ def _send_packets_and_verify(self) -> None:
> recv_pakts = [
> p
> for p in recv_pakts
> - if
> - (
> + if (
> # Remove padding from the bytes.
> hasattr(p, "load") and
> p.load.decode("utf-8").replace("\x00", "") == payload
> )
> diff --git a/dts/tests/TestSuite_single_core_forward_perf.py
> b/dts/tests/TestSuite_single_core_forward_perf.py
> index 1e7ab7b036..acdf8ae2f6 100644
> --- a/dts/tests/TestSuite_single_core_forward_perf.py
> +++ b/dts/tests/TestSuite_single_core_forward_perf.py
> @@ -144,7 +144,7 @@ def single_core_forward_perf(self) -> None:
> for params in self.test_parameters:
> verify(
> params["pass"] is True,
> - f"""Packets forwarded is less than {(1
> -self.delta_tolerance)*100}%
> + f"""Packets forwarded is less than {(1 -
> self.delta_tolerance) * 100}%
> of the expected baseline.
> Measured MPPS = {params["measured_mpps"]}
> Expected MPPS = {params["expected_mpps"]}""",
> --
> 2.54.0
>
>
[-- Attachment #2: Type: text/html, Size: 96411 bytes --]
^ permalink raw reply
* Re: [PATCH v10 00/21] Wangxun Fixes
From: Stephen Hemminger @ 2026-06-24 16:43 UTC (permalink / raw)
To: Zaiyu Wang; +Cc: dev
In-Reply-To: <20260624115254.20348-1-zaiyuwang@trustnetic.com>
On Wed, 24 Jun 2026 19:52:32 +0800
Zaiyu Wang <zaiyuwang@trustnetic.com> wrote:
> This series fixes several issues found on Wangxun Emerald, Sapphire and
> Amber-lite NICs, with a focus on link-related problems.
> ---
> v10:
> - Fixed compilation error on clang
> - Renamed unprefixed symbols
> ---
> v9:
> - Fixed several checkpatch errors
> ---
> v8:
> - Fixed compilation error by replacing RTE_ETH_DEV_TO_PCI with RTE_CLASS_TO_BUS_DEVICE
> ---
> v7:
> - Fixed inverted semantics of is_flat_mem to match SFF8636
> ---
> v6:
> - Fixed more issues identified by AI review
> ---
> v5:
> - Fixed issues identified by AI review
> ---
> v4:
> - Fixed issues identified by devtools scripts
> ---
> v3:
> - Addressed Stephen's comments
> ---
> v2:
> - Fixed compilation error and code style issues
> ---
>
> Zaiyu Wang (21):
> net/txgbe: remove duplicate xstats counters
> net/ngbe: remove duplicate xstats counters
> net/ngbe: add missing CDR config for YT PHY
> net/ngbe: fix VF promiscuous and allmulticast
> net/txgbe: fix inaccuracy in Tx rate limiting
> net/txgbe: fix link status check condition
> net/txgbe: fix Tx desc free logic
> net/txgbe: fix link flow control registers for Amber-Lite
> net/txgbe: fix link flow control config for Sapphire
> net/txgbe: fix a mass of unknown interrupts
> net/txgbe: fix traffic class priority configuration
> net/txgbe: fix link stability for 25G NIC
> net/txgbe: fix link stability for 40G NIC
> net/txgbe: fix link stability for Amber-Lite backplane mode
> net/txgbe: fix FEC mode configuration on 25G NIC
> net/txgbe: fix SFP module identification
> net/txgbe: fix get module info operation
> net/txgbe: fix get EEPROM operation
> net/txgbe: fix to reset Tx write-back pointer
> net/txgbe: fix to enable Tx desc check
> net/txgbe: fix temperature track for AML NIC
>
> drivers/net/ngbe/base/ngbe_phy_yt.c | 3 +
> drivers/net/ngbe/ngbe_ethdev.c | 5 -
> drivers/net/ngbe/ngbe_ethdev_vf.c | 11 +-
> drivers/net/txgbe/base/meson.build | 2 +
> drivers/net/txgbe/base/txgbe.h | 2 +
> drivers/net/txgbe/base/txgbe_aml.c | 185 +-
> drivers/net/txgbe/base/txgbe_aml.h | 6 +-
> drivers/net/txgbe/base/txgbe_aml40.c | 114 +-
> drivers/net/txgbe/base/txgbe_aml40.h | 6 +-
> drivers/net/txgbe/base/txgbe_dcb_hw.c | 2 +-
> drivers/net/txgbe/base/txgbe_e56.c | 3746 +++++++++++++++++++++
> drivers/net/txgbe/base/txgbe_e56.h | 1778 ++++++++++
> drivers/net/txgbe/base/txgbe_e56_bp.c | 2597 ++++++++++++++
> drivers/net/txgbe/base/txgbe_e56_bp.h | 282 ++
> drivers/net/txgbe/base/txgbe_hw.c | 54 +-
> drivers/net/txgbe/base/txgbe_hw.h | 4 +-
> drivers/net/txgbe/base/txgbe_osdep.h | 4 +
> drivers/net/txgbe/base/txgbe_phy.c | 362 +-
> drivers/net/txgbe/base/txgbe_phy.h | 46 +-
> drivers/net/txgbe/base/txgbe_regs.h | 13 +-
> drivers/net/txgbe/base/txgbe_type.h | 43 +-
> drivers/net/txgbe/txgbe_ethdev.c | 472 ++-
> drivers/net/txgbe/txgbe_ethdev.h | 7 +-
> drivers/net/txgbe/txgbe_rxtx.c | 111 +-
> drivers/net/txgbe/txgbe_rxtx.h | 38 +-
> drivers/net/txgbe/txgbe_rxtx_vec_common.h | 17 +-
> 26 files changed, 9464 insertions(+), 446 deletions(-)
> create mode 100644 drivers/net/txgbe/base/txgbe_e56.c
> create mode 100644 drivers/net/txgbe/base/txgbe_e56.h
> create mode 100644 drivers/net/txgbe/base/txgbe_e56_bp.c
> create mode 100644 drivers/net/txgbe/base/txgbe_e56_bp.h
>
Applied to net-next.
If you want to cleanup some of the checkpatch warnings, I can swap in a new version.
^ permalink raw reply
* Re: [PATCH v6 00/23] net/sxe2: added Linkdata sxe2 ethernet driver
From: Stephen Hemminger @ 2026-06-24 16:38 UTC (permalink / raw)
To: liujie5; +Cc: dev
In-Reply-To: <20260624020211.3687062-1-liujie5@linkdatatechnology.com>
On Wed, 24 Jun 2026 10:02:11 +0800
liujie5@linkdatatechnology.com wrote:
> From: Jie Liu <liujie5@linkdatatechnology.com>
>
> This patch set implements core functionality for the SXE2 PMD,
> including basic driver framework, data path setup, and advanced
> offload features (VLAN, RSS,TM, PTP etc.).
>
> V6:
> Refactored sxe2_ptype_tbl from adapter-indirection pattern (adapter->ptype_tbl[])
> to extern const direct-access pattern, matching txgbe PMD convention
>
> All vector/SIMD Rx paths (SSE, AVX2, AVX512, NEON) index sxe2_ptype_tbl[] directly without local pointer indirection
>
> remove flow_dup_pattern_mode devarg
>
> Jie Liu (23):
> net/sxe2: remove software statistics devargs
> net/sxe2: add Rx framework and packet types callback
> net/sxe2: support AVX512 vectorized path for Rx and Tx
> net/sxe2: add AVX2 vector data path for Rx and Tx
> net/sxe2: add link update callback
> net/sxe2: support L2 filtering and MAC config
> drivers: support RSS feature
> net/sxe2: support TM hierarchy and shaping
> net/sxe2: support IPsec inline protocol offload
> net/sxe2: support statistics and multi-process
> drivers: interrupt handling
> net/sxe2: add NEON vec Rx/Tx burst functions
> drivers: add support for VF representors
> net/sxe2: add support for custom UDP tunnel ports
> net/sxe2: support firmware version reading
> net/sxe2: implement get monitor address
> common/sxe2: add shared SFP module definitions
> net/sxe2: support SFP module info and EEPROM access
> net/sxe2: implement private dump info
> net/sxe2: add mbuf validation in Tx debug mode
> common/sxe2: add callback for memory event handling
> net/sxe2: add private devargs parsing
> net/sxe2: update sxe2 feature matrix docs
>
> doc/guides/nics/features/sxe2.ini | 56 +
> doc/guides/nics/sxe2.rst | 147 ++
> drivers/common/sxe2/sxe2_common.c | 156 ++
> drivers/common/sxe2/sxe2_common.h | 4 +
> drivers/common/sxe2/sxe2_flow_public.h | 633 +++++++
> drivers/common/sxe2/sxe2_ioctl_chnl.c | 178 +-
> drivers/common/sxe2/sxe2_ioctl_chnl_func.h | 18 +
> drivers/common/sxe2/sxe2_msg.h | 118 ++
> drivers/net/sxe2/meson.build | 52 +
> drivers/net/sxe2/sxe2_cmd_chnl.c | 1587 +++++++++++++++-
> drivers/net/sxe2/sxe2_cmd_chnl.h | 139 ++
> drivers/net/sxe2/sxe2_drv_cmd.h | 523 +++++-
> drivers/net/sxe2/sxe2_dump.c | 300 +++
> drivers/net/sxe2/sxe2_dump.h | 12 +
> drivers/net/sxe2/sxe2_ethdev.c | 1468 ++++++++++++++-
> drivers/net/sxe2/sxe2_ethdev.h | 111 +-
> drivers/net/sxe2/sxe2_ethdev_repr.c | 609 ++++++
> drivers/net/sxe2/sxe2_ethdev_repr.h | 32 +
> drivers/net/sxe2/sxe2_filter.c | 895 +++++++++
> drivers/net/sxe2/sxe2_filter.h | 100 +
> drivers/net/sxe2/sxe2_flow.c | 1391 ++++++++++++++
> drivers/net/sxe2/sxe2_flow.h | 30 +
> drivers/net/sxe2/sxe2_flow_define.h | 144 ++
> drivers/net/sxe2/sxe2_flow_parse_action.c | 1182 ++++++++++++
> drivers/net/sxe2/sxe2_flow_parse_action.h | 23 +
> drivers/net/sxe2/sxe2_flow_parse_engine.c | 106 ++
> drivers/net/sxe2/sxe2_flow_parse_engine.h | 13 +
> drivers/net/sxe2/sxe2_flow_parse_pattern.c | 1935 +++++++++++++++++++
> drivers/net/sxe2/sxe2_flow_parse_pattern.h | 46 +
> drivers/net/sxe2/sxe2_ipsec.c | 1565 ++++++++++++++++
> drivers/net/sxe2/sxe2_ipsec.h | 254 +++
> drivers/net/sxe2/sxe2_irq.c | 1026 ++++++++++
> drivers/net/sxe2/sxe2_irq.h | 25 +
> drivers/net/sxe2/sxe2_mac.c | 530 ++++++
> drivers/net/sxe2/sxe2_mac.h | 84 +
> drivers/net/sxe2/sxe2_mp.c | 414 +++++
> drivers/net/sxe2/sxe2_mp.h | 67 +
> drivers/net/sxe2/sxe2_queue.c | 17 +-
> drivers/net/sxe2/sxe2_queue.h | 15 +-
> drivers/net/sxe2/sxe2_rss.c | 584 ++++++
> drivers/net/sxe2/sxe2_rss.h | 81 +
> drivers/net/sxe2/sxe2_rx.c | 93 +-
> drivers/net/sxe2/sxe2_rx.h | 2 +
> drivers/net/sxe2/sxe2_security.c | 335 ++++
> drivers/net/sxe2/sxe2_security.h | 77 +
> drivers/net/sxe2/sxe2_stats.c | 586 ++++++
> drivers/net/sxe2/sxe2_stats.h | 39 +
> drivers/net/sxe2/sxe2_switchdev.c | 332 ++++
> drivers/net/sxe2/sxe2_switchdev.h | 33 +
> drivers/net/sxe2/sxe2_tm.c | 1151 ++++++++++++
> drivers/net/sxe2/sxe2_tm.h | 76 +
> drivers/net/sxe2/sxe2_tx.c | 7 +
> drivers/net/sxe2/sxe2_txrx.c | 1958 +++++++++++++++++++-
> drivers/net/sxe2/sxe2_txrx.h | 8 +
> drivers/net/sxe2/sxe2_txrx_check_mbuf.c | 595 ++++++
> drivers/net/sxe2/sxe2_txrx_check_mbuf.h | 38 +
> drivers/net/sxe2/sxe2_txrx_poll.c | 284 ++-
> drivers/net/sxe2/sxe2_txrx_vec.c | 46 +-
> drivers/net/sxe2/sxe2_txrx_vec.h | 38 +-
> drivers/net/sxe2/sxe2_txrx_vec_avx2.c | 747 ++++++++
> drivers/net/sxe2/sxe2_txrx_vec_avx512.c | 867 +++++++++
> drivers/net/sxe2/sxe2_txrx_vec_common.h | 54 +-
> drivers/net/sxe2/sxe2_txrx_vec_neon.c | 689 +++++++
> drivers/net/sxe2/sxe2_txrx_vec_sse.c | 38 +-
> drivers/net/sxe2/sxe2_vsi.c | 146 ++
> drivers/net/sxe2/sxe2_vsi.h | 12 +-
> drivers/net/sxe2/sxe2vf_regs.h | 85 +
> 67 files changed, 24733 insertions(+), 273 deletions(-)
> create mode 100644 drivers/common/sxe2/sxe2_flow_public.h
> create mode 100644 drivers/common/sxe2/sxe2_msg.h
> create mode 100644 drivers/net/sxe2/sxe2_dump.c
> create mode 100644 drivers/net/sxe2/sxe2_dump.h
> create mode 100644 drivers/net/sxe2/sxe2_ethdev_repr.c
> create mode 100644 drivers/net/sxe2/sxe2_ethdev_repr.h
> create mode 100644 drivers/net/sxe2/sxe2_filter.c
> create mode 100644 drivers/net/sxe2/sxe2_filter.h
> create mode 100644 drivers/net/sxe2/sxe2_flow.c
> create mode 100644 drivers/net/sxe2/sxe2_flow.h
> create mode 100644 drivers/net/sxe2/sxe2_flow_define.h
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_action.c
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_action.h
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_engine.c
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_engine.h
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_pattern.c
> create mode 100644 drivers/net/sxe2/sxe2_flow_parse_pattern.h
> create mode 100644 drivers/net/sxe2/sxe2_ipsec.c
> create mode 100644 drivers/net/sxe2/sxe2_ipsec.h
> create mode 100644 drivers/net/sxe2/sxe2_irq.c
> create mode 100644 drivers/net/sxe2/sxe2_mac.c
> create mode 100644 drivers/net/sxe2/sxe2_mac.h
> create mode 100644 drivers/net/sxe2/sxe2_mp.c
> create mode 100644 drivers/net/sxe2/sxe2_mp.h
> create mode 100644 drivers/net/sxe2/sxe2_rss.c
> create mode 100644 drivers/net/sxe2/sxe2_rss.h
> create mode 100644 drivers/net/sxe2/sxe2_security.c
> create mode 100644 drivers/net/sxe2/sxe2_security.h
> create mode 100644 drivers/net/sxe2/sxe2_stats.c
> create mode 100644 drivers/net/sxe2/sxe2_stats.h
> create mode 100644 drivers/net/sxe2/sxe2_switchdev.c
> create mode 100644 drivers/net/sxe2/sxe2_switchdev.h
> create mode 100644 drivers/net/sxe2/sxe2_tm.c
> create mode 100644 drivers/net/sxe2/sxe2_tm.h
> create mode 100644 drivers/net/sxe2/sxe2_txrx_check_mbuf.c
> create mode 100644 drivers/net/sxe2/sxe2_txrx_check_mbuf.h
> create mode 100644 drivers/net/sxe2/sxe2_txrx_vec_avx2.c
> create mode 100644 drivers/net/sxe2/sxe2_txrx_vec_avx512.c
> create mode 100644 drivers/net/sxe2/sxe2_txrx_vec_neon.c
> create mode 100644 drivers/net/sxe2/sxe2vf_regs.h
>
On the duplicate flow devargs; your observation was correct, mlx5 has similar devarg option.
Sorry that I didn't strongly nudge AI in the right direction earlier.
To be clear:
- sxe2 should use same devarg as mlx5 for this "allow_duplicate_pattern"
- default should be 1
- make sure documentation matches flag.
The patch looks much better; but there is a bisection breaking
patch ordering around 6 and 7.
After I pushed AI review to follow that, the review was the following:
(I means Claude AI, not me Stephen)
[PATCH v6 00/23] sxe2 driver feature additions
The flow-duplicate-pattern situation regressed in the wrong direction.
I reread mlx5's allow_duplicate_pattern in light of your "align to mlx5"
guidance and I was wrong to push for removal in v4 and v5. mlx5 has the same
devarg: name allow_duplicate_pattern, default 1, valid 0|1, and both values
expose a real hardware capability that rte_flow itself does not articulate
(value 0 -> EEXIST on duplicate; value 1 -> hardware queues duplicates as
shadow rules that activate when prior rules are deleted). That is not a
"standard API by boot flag" semantics violation as I had read it - it is a
hardware capability switch, and it is documented in doc/guides/nics/mlx5.rst
exactly the way sxe2's was. My v4-v5 push to drop it was based on a
misreading.
Unfortunately the v6 response is to half-remove the devarg in a way that is
worse than either keeping it or removing it cleanly:
[PATCH v6 22/23] flow-duplicate-pattern parsing removed, field left behind
Verified in the assembled tree:
drivers/net/sxe2/sxe2_ethdev.h:138:
uint8_t flow_dup_pattern_mode; /* field still in struct */
drivers/net/sxe2/sxe2_flow.c:806:
rte_flow_error_set(error, EEXIST, ..., NULL,
adapter->devargs.flow_dup_pattern_mode ?
"Duplicate flow pattern." :
"Duplicate flow pattern is not allowed.");
drivers/common/sxe2/sxe2_flow_public.h:603:
uint8_t switch_pattern_dup_allow; /* still in flow metadata */
The devarg's parser, default-setter, register_param_string entry, and
documentation are all gone, but the storage and the read site remain.
The field is zero-initialized and never written, so the ternary always picks
the "is not allowed" string. The hardware-capability path that the value=1
branch used to drive (setting switch_pattern_dup_allow on per-rule metadata)
has no caller now either. None of this is a correctness bug - duplicate
rules are uniformly rejected with EEXIST, which is the conservative
behaviour - but it is dead code that misleads the next reader.
Suggested fix: revert the v5-to-v6 changes that removed the parser and
docs, and instead align with mlx5:
- Rename the devarg to allow_duplicate_pattern (underscore, matching
mlx5's spelling).
- Keep default = 1, matching mlx5's non-HWS default.
- Reuse mlx5's documentation wording in sxe2.rst, adapted for the
switch engine. The "only the first rule takes effect, the next
activates when the first is deleted" semantic from mlx5.rst describes
what the value=1 path does in hardware, and that wording is what was
missing from v5's documentation.
- Keep switch_pattern_dup_allow in flow metadata since it is what
propagates the policy to the hardware programming path.
Or, if the cleaner path is preferred: actually finish the removal. Drop
flow_dup_pattern_mode from struct sxe2_devargs, replace the ternary in
sxe2_flow.c with the single "is not allowed" string, and drop
switch_pattern_dup_allow from struct (or wire it to a compile-time
constant if hardware programming truly needs it). Either direction is
defensible; the v6 in-between state is not.
[PATCH v6 06/23 and 07/23] patches posted in wrong order in the bundle
The bundle has 07/23 (drivers: support RSS feature) before 06/23
(net/sxe2: support L2 filtering and MAC config). git am applies them in
mbox order, so the series fails to apply: 07/23 depends on symbols 06/23
introduces. The fix is just to repost the bundle in numeric order;
contents are byte-identical to v5 for both patches. Worth fixing before
the next post because anyone running git am < bundle.mbox hits this.
Once the mbox order is fixed and the flow-duplicate-pattern situation is
resolved one way or the other, this is ready.
^ permalink raw reply
* [PATCH] checkpatches: suppress warnings about msleep()
From: Stephen Hemminger @ 2026-06-24 16:25 UTC (permalink / raw)
To: dev; +Cc: Stephen Hemminger, Thomas Monjalon
The DPDK checkpatch uses the underlying kernel tool which
does some checks that are only relevant in kernel code.
The warning about msleep() time only makes sense in the
kernel.
Suppress feedback like:
WARNING:MSLEEP: msleep < 20ms can sleep for up to 20ms; see function description of msleep().
+ msleep(10);
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
devtools/checkpatches.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/devtools/checkpatches.sh b/devtools/checkpatches.sh
index f5dd77443f..071bdb2c15 100755
--- a/devtools/checkpatches.sh
+++ b/devtools/checkpatches.sh
@@ -34,7 +34,7 @@ PREFER_KERNEL_TYPES,PREFER_FALLTHROUGH,BIT_MACRO,CONST_STRUCT,\
SPLIT_STRING,LONG_LINE_STRING,C99_COMMENT_TOLERANCE,\
LINE_SPACING,PARENTHESIS_ALIGNMENT,NETWORKING_BLOCK_COMMENT_STYLE,\
NEW_TYPEDEFS,COMPARISON_TO_NULL,AVOID_BUG,EXPORT_SYMBOL,\
-BAD_REPORTED_BY_LINK"
+BAD_REPORTED_BY_LINK,MSLEEP"
options="$options $DPDK_CHECKPATCH_OPTIONS"
print_usage () {
--
2.53.0
^ permalink raw reply related
* Re: [PATCH v10 13/21] net/txgbe: fix link stability for 40G NIC
From: Stephen Hemminger @ 2026-06-24 16:18 UTC (permalink / raw)
To: Zaiyu Wang; +Cc: dev, stable, Jiawen Wu
In-Reply-To: <20260624115254.20348-14-zaiyuwang@trustnetic.com>
On Wed, 24 Jun 2026 19:52:45 +0800
Zaiyu Wang <zaiyuwang@trustnetic.com> wrote:
> +
> +void txgbe_e56_rx_rd_second_code_40g(struct txgbe_hw *hw, int *SECOND_CODE, int lane)
> +{
> + int i, median;
> + unsigned int rdata;
> + u32 addr;
> + int RXS_BBCDR_SECOND_ORDER_ST[RXS_READ_COUNT];
> +
> + /* Set ovrd_en=0 to read ASIC value */
> + addr = E56G__RXS0_ANA_OVRDEN_1_ADDR + (lane * E56PHY_RXS_OFFSET);
> + rdata = rd32_ephy(hw, addr);
> + EPHY_XFLD(E56G__RXS0_ANA_OVRDEN_1, ovrd_en_ana_bbcdr_int_cstm_i) = 0;
> + wr32_ephy(hw, addr, rdata);
> +
> + /*
> + * As status update from RXS hardware is asynchronous to read status of SECOND_ORDER,
> + * follow sequence mentioned below.
> + */
> + for (i = 0; i < RXS_READ_COUNT; i = i + 1) {
> + addr = E56G__RXS0_ANA_OVRDVAL_5_ADDR + (lane * E56PHY_RXS_OFFSET);
> + rdata = rd32_ephy(hw, addr);
> + RXS_BBCDR_SECOND_ORDER_ST[i] = EPHY_XFLD(E56G__RXS0_ANA_OVRDVAL_5,
> + ana_bbcdr_int_cstm_i);
> + usec_delay(100);
> + }
> +
> + /* sort array RXS_BBCDR_SECOND_ORDER_ST[i] */
> + qsort(RXS_BBCDR_SECOND_ORDER_ST, RXS_READ_COUNT, sizeof(int), txgbe_e56_int_cmp);
> +
> + median = ((RXS_READ_COUNT + 1) / 2) - 1;
> + *SECOND_CODE = RXS_BBCDR_SECOND_ORDER_ST[median];
> +
> + return;
> +}
These extra returns are causing extra checkpatch warnings.
I know this is base code but if possible could you remove them.
WARNING:RETURN_VOID: void function return statements are not generally useful
#707: FILE: drivers/net/txgbe/base/txgbe_e56.c:1806:
+ return;
+}
WARNING:RETURN_VOID: void function return statements are not generally useful
#736: FILE: drivers/net/txgbe/base/txgbe_e56.c:1835:
+ return;
+}
^ permalink raw reply
* Re: [PATCH v2] dts: update dts check format script and resolve errors
From: Koushik Bhargav Nimoji @ 2026-06-24 15:44 UTC (permalink / raw)
To: Patrick Robb
Cc: luca.vizzarro, dev, abailey, ahassick, lylavoie,
NBU-Contact-Thomas Monjalon
In-Reply-To: <CAK6Duxs-o_OcgjM9_dm-oBFTU7zKjk1g1X0bvbS=gtgwFSd0=Q@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 2344 bytes --]
On Tue, Jun 23, 2026 at 6:35 PM Patrick Robb <patrickrobb1997@gmail.com>
wrote:
> Looks like your patch is failing some of the checks on patchwork,
> including doc build:
> https://github.com/ovsrobot/dpdk/actions/runs/27789008643
>
> Remember to run a doc build locally before sending any patches:
>
> meson setup build
> ninja -C build doc
>
>
I will resolve this and send a patch out shortly.
Otherwise, please provide a little more info regarding your info. So, you
> have updated some of the dependencies used in the dts check format script.
> I think what I see from a quick look that is relevant is:
>
> -mypy = "^1.13.0"
> +mypy = "^2.1.0"
> toml = "^0.10.2"
> -ruff = "^0.8.1"
> -types-paramiko = "^3.5.0.20240928"
> +ruff = "^0.15.16"
> +types-paramiko = "^4.0.0.20260518"
> types-invoke = "^2.0.0.10"
> -types-pyyaml = "^6.0.12.20240917"
> +types-pyyaml = "^6.0.12.20260518"
>
> What is being done broadly? All dependencies covered by poetry are being
> updated? or just the subset included in format checks? Are dependencies
> being brought to current latest or something different?
>
Overall, only the dependencies being used by the dts-check-format.sh script
were updated. They were brought to the latest versions that were compatible
with each other. This allows for more rigorous format checking, as new
errors surfaced once the tool versions were updated.
>
> I remember Thomas mentioning that DTS was not checking the
> dts-check-format.sh at DPDK Summit and that confused me. Perhaps he is
> running DTS and dts-check-format.sh outside of poetry (which we have said
> is okay to do) and he is on newer versions of the formatting dependencies
> than what we currently have committed to the poetry.lock.
>
The lab was notified by Thomas about the following:
"About DTS, I think you are running an old version of the tools used in
devtools/dts-check-format.sh. When I run it, I have a lot of warnings. We
should fix them in DTS and then update the tools in the lab."
This may be what he was referring to at the DPDK summit. When running on
poetry it uses the older tool versions, to which none of the errors show
up. When running outside of poetry, it most likely uses the newer tool
versions which causes the underlying errors to appear.
Thanks,
Koushik
[-- Attachment #2: Type: text/html, Size: 3639 bytes --]
^ permalink raw reply
* Re: [PATCH] net/virtio-user: fix eventfd sharing in secondary process
From: Stephen Hemminger @ 2026-06-24 15:10 UTC (permalink / raw)
To: Samar Yadav; +Cc: dev, maxime.coquelin, chenbox, tiwei.bie, stable
In-Reply-To: <20260624085741.2195573-1-samaryadav5@gmail.com>
On Wed, 24 Jun 2026 08:57:41 +0000
Samar Yadav <samaryadav5@gmail.com> wrote:
> + pp = rte_zmalloc("virtio_user_proc_priv", sizeof(*pp), 0);
> + if (pp == NULL)
> + return -ENOMEM;
> +
> + pp->kickfds = rte_malloc("virtio_user_proc_priv",
> + total_queues * sizeof(int), 0);
> + pp->callfds = rte_malloc("virtio_user_proc_priv",
> + total_queues * sizeof(int), 0);
Better to use rte_calloc.
^ permalink raw reply
* Re: [PATCH] net/virtio-user: fix eventfd sharing in secondary process
From: Stephen Hemminger @ 2026-06-24 15:16 UTC (permalink / raw)
To: Samar Yadav; +Cc: dev, maxime.coquelin, chenbox, tiwei.bie, stable
In-Reply-To: <20260624085741.2195573-1-samaryadav5@gmail.com>
On Wed, 24 Jun 2026 08:57:41 +0000
Samar Yadav <samaryadav5@gmail.com> wrote:
> @@ -865,9 +913,15 @@ virtio_user_dev_uninit(struct virtio_user_dev *dev)
>
> rte_mem_event_callback_unregister(VIRTIO_USER_MEM_EVENT_CLB_NAME, dev);
>
> + /*
> + * Serialize closing/freeing the kick/call fd arrays against the MP
> + * handler, which reads them under the same lock to share them with
> + * secondary processes.
> + */
> + pthread_mutex_lock(&dev->mutex);
> virtio_user_dev_uninit_notify(dev);
> -
> virtio_user_free_vrings(dev);
> + pthread_mutex_unlock(&dev->mutex);
>
> free(dev->ifname);
Related bug. virtio_user is not initializing mutex as safe between
processes. See rte_thread_mutex_init_shared() vs pthread_mutex_init()
^ permalink raw reply
* [PATCH] vhost/crypto: fix segfault
From: Radu Nicolau @ 2026-06-24 14:20 UTC (permalink / raw)
To: dev; +Cc: Radu Nicolau, stable, Maxime Coquelin, Chenbo Xia, Jay Zhou,
Fan Zhang
Fix potential call with dev->mem uninitialized, one common usecase
example being running the autotest with more than one device.
Fixes: 3bb595ecd682 ("vhost/crypto: add request handler")
Cc: stable@dpdk.org
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
lib/vhost/vhost_crypto.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/vhost/vhost_crypto.c b/lib/vhost/vhost_crypto.c
index 648e2d731b..3679eaca1e 100644
--- a/lib/vhost/vhost_crypto.c
+++ b/lib/vhost/vhost_crypto.c
@@ -1512,6 +1512,10 @@ vhost_crypto_process_one_req(struct vhost_crypto *vcrypto,
VC_LOG_ERR("Invalid descriptor");
return -1;
}
+ if (unlikely((vc_req->dev->mem) == NULL)) {
+ VC_LOG_ERR("Uninitialized vhost device");
+ return -1;
+ }
dlen = head->len;
src_desc = IOVA_TO_VVA(struct vring_desc *, vc_req->dev, vq,
--
2.52.0
^ permalink raw reply related
* RE: [PATCH v4 3/7] test/bpf: add test for large shift
From: Marat Khalili @ 2026-06-24 13:44 UTC (permalink / raw)
To: Stephen Hemminger, dev@dpdk.org; +Cc: Konstantin Ananyev
In-Reply-To: <8c882f31aaec46d984fc4c689ad92602@huawei.com>
> > +/*
> > + * Shift by an immediate that doesn't fit in a signed byte: the C1 shift
> > + * group takes a fixed 1-byte immediate, but imm_size() returns 4 for
> > + * counts >= 128, so the x86 JIT emits 3 stray bytes and desyncs the
> > + * instruction stream. The shift results are discarded (a count >= 64 is
> > + * UB in the interpreter); the test returns a known constant, which the
> > + * corrupted stream fails to produce.
> > + */
> > +static const struct ebpf_insn test_shift_big_imm_prog[] = {
> > + {
> > + .code = (BPF_ALU | EBPF_MOV | BPF_K),
> > + .dst_reg = EBPF_REG_2,
> > + .imm = 0x1,
> > + },
> > + {
> > + .code = (EBPF_ALU64 | BPF_LSH | BPF_K),
> > + .dst_reg = EBPF_REG_2,
> > + .imm = 137,
> > + },
> > + {
> > + .code = (EBPF_ALU64 | BPF_RSH | BPF_K),
> > + .dst_reg = EBPF_REG_2,
> > + .imm = 200,
> > + },
> > + {
> > + .code = (EBPF_ALU64 | EBPF_ARSH | BPF_K),
> > + .dst_reg = EBPF_REG_2,
> > + .imm = 255,
> > + },
> > + /* known result; a desynced stream won't reproduce it */
> > + {
> > + .code = (BPF_ALU | EBPF_MOV | BPF_K),
> > + .dst_reg = EBPF_REG_0,
> > + .imm = 0x55,
> > + },
> > + {
> > + .code = (BPF_JMP | EBPF_EXIT),
> > + },
> > +};
>
> // snip the rest
>
> Thanks a lot for adding this test. Can we use the shift results though, instead
> of discarding them, maybe as another test case? If the interpreter is unable to
> reproduce them or triggers sanitizer it needs to be fixed as well. (Apologies
> for this scope creep but I hope we get to the bottom of it eventually.)
Speaking of scope creep, this currently fails on ARM since emit_lsl (as well as
emit_lsr, emit_asr) does not clear unused immediate bits and thus the value
does not fit in the encoding.
^ permalink raw reply
* [PATCH v2 4/4] ethdev: fix promoted flow metadata symbols
From: Dariusz Sosnowski @ 2026-06-24 13:13 UTC (permalink / raw)
To: David Marchand, Bruce Richardson, Thomas Monjalon,
Andrew Rybchenko, Ori Kam
Cc: dev, Yu Jiang
In-Reply-To: <20260624131337.1127323-1-dsosnowski@nvidia.com>
Offending commit stabilized the following symbols
related to flow metadata:
- 1 function symbol:
- rte_flow_dynf_metadata_register
- 2 variable symbols:
- rte_flow_dynf_metadata_offs
- rte_flow_dynf_metadata_mask
Any application using experimental flow metadata symbols,
which was linked dynamically against 25.11 version of ethdev
library and using current version of ethdev library
would fail to start on symbol lookup error:
/tmp/dpdk-25.11/usr/local/bin/dpdk-testpmd:
symbol lookup error: /tmp/dpdk-25.11/usr/local/bin/dpdk-testpmd:
undefined symbol: rte_flow_dynf_metadata_offs, version EXPERIMENTAL
This patch addresses that issue by restoring EXPERIMENTAL version
on the global variables to keep ABI compatibility [1].
Related inline helpers and variable declarations are kept as stable
(i.e., no __rte_experimental marker).
EXPERIMENTAL version will be removed from these global variables
in 26.11 release cycle on next ABI version bump.
Standard function symbol versioning is also applied on
rte_flow_dynf_metadata_register() function.
[1]: https://inbox.dpdk.org/dev/m7s3jl2566kibbapr2mfa2ic2opuc6b4ok2g67j3il5dgduzih@cz5wcdstb75n/
Bugzilla ID: 1957
Fixes: 4ee2f5c1cedf ("ethdev: promote flow metadata API to stable")
Reported-by: Yu Jiang <yux.jiang@intel.com>
Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
lib/ethdev/meson.build | 2 ++
lib/ethdev/rte_flow.c | 13 ++++++++-----
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/lib/ethdev/meson.build b/lib/ethdev/meson.build
index 8ba6c708a2..63fd866af9 100644
--- a/lib/ethdev/meson.build
+++ b/lib/ethdev/meson.build
@@ -1,6 +1,8 @@
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017 Intel Corporation
+use_function_versioning = true
+
sources = files(
'ethdev_driver.c',
'ethdev_private.c',
diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c
index ec0fe08355..24eb5a95b0 100644
--- a/lib/ethdev/rte_flow.c
+++ b/lib/ethdev/rte_flow.c
@@ -23,11 +23,11 @@
#define FLOW_LOG RTE_ETHDEV_LOG_LINE
/* Mbuf dynamic field name for metadata. */
-RTE_EXPORT_SYMBOL(rte_flow_dynf_metadata_offs)
+RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_flow_dynf_metadata_offs, 19.11)
int32_t rte_flow_dynf_metadata_offs = -1;
/* Mbuf dynamic field flag bit number for metadata. */
-RTE_EXPORT_SYMBOL(rte_flow_dynf_metadata_mask)
+RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_flow_dynf_metadata_mask, 19.11)
uint64_t rte_flow_dynf_metadata_mask;
/**
@@ -281,9 +281,7 @@ static const struct rte_flow_desc_data rte_flow_desc_action[] = {
MK_FLOW_ACTION(JUMP_TO_TABLE_INDEX, sizeof(struct rte_flow_action_jump_to_table_index)),
};
-RTE_EXPORT_SYMBOL(rte_flow_dynf_metadata_register)
-int
-rte_flow_dynf_metadata_register(void)
+RTE_DEFAULT_SYMBOL(26, int, rte_flow_dynf_metadata_register, (void))
{
int offset;
int flag;
@@ -316,6 +314,11 @@ rte_flow_dynf_metadata_register(void)
return -rte_errno;
}
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_flow_dynf_metadata_register, (void))
+{
+ return rte_flow_dynf_metadata_register();
+}
+
static inline void
fts_enter(struct rte_eth_dev *dev)
{
--
2.47.3
^ permalink raw reply related
* [PATCH v2 1/4] eal: fix macro for versioned experimental symbol
From: Dariusz Sosnowski @ 2026-06-24 13:13 UTC (permalink / raw)
To: David Marchand, Bruce Richardson; +Cc: dev, Yu Jiang
In-Reply-To: <20260624131337.1127323-1-dsosnowski@nvidia.com>
Add a missing semicolon after __asm__ block in
RTE_VERSION_EXPERIMENTAL_SYMBOL macro.
It's lack triggers the following compilation error with clang:
../lib/ethdev/rte_flow.c:320:1: error: expected ';' after top-level asm block
320 | RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_flow_dynf_metadata_register, (void))
| ^
../lib/eal/common/eal_export.h:75:74: note: expanded from macro 'RTE_VERSION_EXPERIMENTAL_SYMBOL'
75 | __asm__(".symver " RTE_STR(name) "_exp, " RTE_STR(name) "@EXPERIMENTAL") \
| ^
../lib/eal/include/rte_common.h:237:20: note: expanded from macro '\
__rte_used'
237 | #define __rte_used __attribute__((used))
| ^
Fixes: e30e194c4d06 ("eal: rework function versioning macros")
Cc: david.marchand@redhat.com
Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
lib/eal/common/eal_export.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/eal/common/eal_export.h b/lib/eal/common/eal_export.h
index 888fd9f9ed..7971bf8d7a 100644
--- a/lib/eal/common/eal_export.h
+++ b/lib/eal/common/eal_export.h
@@ -72,7 +72,7 @@ __rte_used type name ## _v ## ver args; \
type name ## _v ## ver args
#define RTE_VERSION_EXPERIMENTAL_SYMBOL(type, name, args) VERSIONING_WARN \
-__asm__(".symver " RTE_STR(name) "_exp, " RTE_STR(name) "@EXPERIMENTAL") \
+__asm__(".symver " RTE_STR(name) "_exp, " RTE_STR(name) "@EXPERIMENTAL"); \
__rte_used type name ## _exp args; \
type name ## _exp args
--
2.47.3
^ permalink raw reply related
* [PATCH v2 3/4] net/mlx5: fix stabilized function versions
From: Dariusz Sosnowski @ 2026-06-24 13:13 UTC (permalink / raw)
To: David Marchand, Bruce Richardson, Viacheslav Ovsiienko, Bing Zhao,
Ori Kam, Suanming Mou, Matan Azrad
Cc: dev, Yu Jiang
In-Reply-To: <20260624131337.1127323-1-dsosnowski@nvidia.com>
Offending patch stabilized the following function symbols:
- rte_pmd_mlx5_driver_event_cb_register
- rte_pmd_mlx5_driver_event_cb_unregister
- rte_pmd_mlx5_enable_steering
- rte_pmd_mlx5_disable_steering
These function symbols were introduced in 25.11.
Any application using these functions, linked against 25.11 version,
would fail when used with 26.07 libraries, because only DPDK_26 versions
of these symbols were exported.
This patch fixes that by adding proper function symbol versioning
to these symbols.
Fixes: e8cab133645f ("net/mlx5: promote some private API to stable")
Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
drivers/net/mlx5/meson.build | 2 ++
drivers/net/mlx5/mlx5_driver_event.c | 22 ++++++++++++++++------
drivers/net/mlx5/mlx5_flow.c | 18 ++++++++++++------
3 files changed, 30 insertions(+), 12 deletions(-)
diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index 82a7dfe782..0fa6322779 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -2,6 +2,8 @@
# Copyright 2018 6WIND S.A.
# Copyright 2018 Mellanox Technologies, Ltd
+use_function_versioning = true
+
if not (is_linux or is_windows)
build = false
reason = 'only supported on Linux and Windows'
diff --git a/drivers/net/mlx5/mlx5_driver_event.c b/drivers/net/mlx5/mlx5_driver_event.c
index 89e49331c8..d0e22d6151 100644
--- a/drivers/net/mlx5/mlx5_driver_event.c
+++ b/drivers/net/mlx5/mlx5_driver_event.c
@@ -236,9 +236,8 @@ notify_existing_devices(rte_pmd_mlx5_driver_event_callback_t cb, void *opaque)
notify_existing_queues(port_id, cb, opaque);
}
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_driver_event_cb_register)
-int
-rte_pmd_mlx5_driver_event_cb_register(rte_pmd_mlx5_driver_event_callback_t cb, void *opaque)
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_driver_event_cb_register,
+ (rte_pmd_mlx5_driver_event_callback_t cb, void *opaque))
{
struct registered_cb *r;
@@ -264,9 +263,14 @@ rte_pmd_mlx5_driver_event_cb_register(rte_pmd_mlx5_driver_event_callback_t cb, v
return 0;
}
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_driver_event_cb_unregister)
-int
-rte_pmd_mlx5_driver_event_cb_unregister(rte_pmd_mlx5_driver_event_callback_t cb)
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_driver_event_cb_register,
+ (rte_pmd_mlx5_driver_event_callback_t cb, void *opaque))
+{
+ return rte_pmd_mlx5_driver_event_cb_register(cb, opaque);
+}
+
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_driver_event_cb_unregister,
+ (rte_pmd_mlx5_driver_event_callback_t cb))
{
struct registered_cb *r;
bool found = false;
@@ -289,6 +293,12 @@ rte_pmd_mlx5_driver_event_cb_unregister(rte_pmd_mlx5_driver_event_callback_t cb)
return 0;
}
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_driver_event_cb_unregister,
+ (rte_pmd_mlx5_driver_event_callback_t cb))
+{
+ return rte_pmd_mlx5_driver_event_cb_unregister(cb);
+}
+
RTE_FINI(rte_pmd_mlx5_driver_event_cb_cleanup) {
struct registered_cb *r;
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index a95dd9dc94..4b984df892 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -12506,9 +12506,7 @@ flow_disable_steering_run_on_related(struct rte_eth_dev *dev,
}
}
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_disable_steering)
-void
-rte_pmd_mlx5_disable_steering(void)
+RTE_DEFAULT_SYMBOL(26, void, rte_pmd_mlx5_disable_steering, (void))
{
uint16_t port_id;
@@ -12532,9 +12530,12 @@ rte_pmd_mlx5_disable_steering(void)
mlx5_steering_disabled = true;
}
-RTE_EXPORT_SYMBOL(rte_pmd_mlx5_enable_steering)
-int
-rte_pmd_mlx5_enable_steering(void)
+RTE_VERSION_EXPERIMENTAL_SYMBOL(void, rte_pmd_mlx5_disable_steering, (void))
+{
+ rte_pmd_mlx5_disable_steering();
+}
+
+RTE_DEFAULT_SYMBOL(26, int, rte_pmd_mlx5_enable_steering, (void))
{
uint16_t port_id;
@@ -12551,6 +12552,11 @@ rte_pmd_mlx5_enable_steering(void)
return 0;
}
+RTE_VERSION_EXPERIMENTAL_SYMBOL(int, rte_pmd_mlx5_enable_steering, (void))
+{
+ return rte_pmd_mlx5_enable_steering();
+}
+
bool
mlx5_vport_rx_metadata_passing_enabled(const struct mlx5_dev_ctx_shared *sh)
{
--
2.47.3
^ permalink raw reply related
* [PATCH v2 2/4] build: support function versioning for drivers
From: Dariusz Sosnowski @ 2026-06-24 13:13 UTC (permalink / raw)
To: David Marchand, Bruce Richardson; +Cc: dev, Yu Jiang
In-Reply-To: <20260624131337.1127323-1-dsosnowski@nvidia.com>
Add support for enabling function versioning
(through use_function_versioning meson variable) for drivers,
similar to libraries.
Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
drivers/meson.build | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/meson.build b/drivers/meson.build
index 4d95604ecd..a63d93372a 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -171,6 +171,7 @@ foreach subpath:subdirs
pkgconfig_extra_libs = []
testpmd_sources = []
require_iova_in_mbuf = true
+ use_function_versioning = false
# for handling base code files which may need extra cflags
base_sources = []
base_cflags = []
@@ -273,6 +274,13 @@ foreach subpath:subdirs
endif
dpdk_conf.set(lib_name.to_upper(), 1)
+ if developer_mode and is_windows and use_function_versioning
+ message('@0@: Function versioning is not supported by Windows.'.format(name))
+ endif
+ if use_function_versioning
+ cflags += '-DRTE_USE_FUNCTION_VERSIONING'
+ endif
+
dpdk_extra_ldflags += pkgconfig_extra_libs
dpdk_headers += headers
--
2.47.3
^ permalink raw reply related
* [PATCH v2 0/4] add versioned symbols for recently stabilized APIs
From: Dariusz Sosnowski @ 2026-06-24 13:13 UTC (permalink / raw)
To: David Marchand, Bruce Richardson, Thomas Monjalon,
Andrew Rybchenko, Viacheslav Ovsiienko, Bing Zhao, Ori Kam,
Suanming Mou, Matan Azrad
Cc: dev, Yu Jiang
In-Reply-To: <20260623113752.1100072-1-dsosnowski@nvidia.com>
Main goal of this patchset is to address https://bugs.dpdk.org/show_bug.cgi?id=1957
but it also handles other recently stabilized symbols and has some minor fixes:
- Patch 1 - Fix RTE_VERSION_EXPERIMENTAL_SYMBOL macro on clang.
- Patch 2 - Allow function versioning inside drivers.
- Patch 3 - Version the function symbols stabilized in
https://git.dpdk.org/dpdk/commit/?id=e8cab133645f5466ef75e511629add43b68a5027
- Patch 4 - Version the rte_flow_dynf_metadata_register() function stabilized in
https://git.dpdk.org/dpdk/commit/?id=4ee2f5c1cedf9ee7f39afa667f71b07f4004ba5c
Restore EXPERIMENTAL version on global variable symbols
rte_flow_dynf_metadata_offs and rte_flow_dynf_metadata_mask.
v2:
- Drop patches introducing versioning macros for symbol aliases
and their usage (patch 4 and 5 from v1)
- EXPERIMENTAL version on global variable symbols
rte_flow_dynf_metadata_offs and rte_flow_dynf_metadata_mask,
as discussed under v1.
- Change commit title prefix in patch (2) from "drivers" to "build".
v1: https://inbox.dpdk.org/dev/20260623113752.1100072-1-dsosnowski@nvidia.com/
Dariusz Sosnowski (4):
eal: fix macro for versioned experimental symbol
build: support function versioning for drivers
net/mlx5: fix stabilized function versions
ethdev: fix promoted flow metadata symbols
drivers/meson.build | 8 ++++++++
drivers/net/mlx5/meson.build | 2 ++
drivers/net/mlx5/mlx5_driver_event.c | 22 ++++++++++++++++------
drivers/net/mlx5/mlx5_flow.c | 18 ++++++++++++------
lib/eal/common/eal_export.h | 2 +-
lib/ethdev/meson.build | 2 ++
lib/ethdev/rte_flow.c | 13 ++++++++-----
7 files changed, 49 insertions(+), 18 deletions(-)
--
2.47.3
^ permalink raw reply
* Re: [PATCH v5] graph: add optional profiling stats
From: saeed bishara @ 2026-06-24 13:09 UTC (permalink / raw)
To: Morten Brørup
Cc: Pavan Nikhilesh, Stephen Hemminger, Wathsala Vithanage,
Bruce Richardson, thomas, Jerin Jacob, dev, Jerin Jacob,
Kiran Kumar K, Nithin Dabilpuram, Zhirun Yan
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35F6593C@smartserver.smartshare.dk>
On Wed, Jun 24, 2026 at 10:59 AM Morten Brørup <mb@smartsharesystems.com> wrote:
>
> +Pavan Nikhilesh, +Stephen Hemminger, +Wathsala Vithanage, +Bruce Richardson, +Thomas Monjalon
>
> > From: saeed bishara [mailto:saeed.bishara.os@gmail.com]
> > Sent: Tuesday, 23 June 2026 16.11
> >
> > > > also, instead of adding cacheline for this profiling data, can we
> > > > share with line 1 that used solely for xstats?
> > >
> > > This profiling data is 4 indexes * 2 values * 8-byte fields, so one
> > cache line in itself.
> > make sense.
> > btw, the default value of RTE_GRAPH_BURST_SIZE is 256, I suspect that
> > real applications will enforce smaller burst when pulling from input
> > devices (e.g. 32). Do you expect such cases to change
> > RTE_GRAPH_BURST_SIZE?
>
> Excellent question! I don't know.
> They should. E.g. an application optimized for latency should certainly not process bursts of 256 objects.
>
> IMO, the root problem is the lack of a unified burst size across DPDK, which causes every library to be designed with its own optimal burst size.
> E.g. the Mbuf library uses 64 (for rte_pktmbuf_free_bulk()), and the Graph library uses 256.
>
> There has been an attempt at introducing a unified burst size [1] for DPDK, but it met a lot of resistance, so it still needs to be refined before we can reach a conclusion.
> The drivers supposedly can report an "optimal" burst size at run-time, which the application can then use. But the application is unable to configure its internal burst sizes if one driver reports 64 and another reports 32.
> I'm strongly in favor of a build time constant, used across DPDK. The default value should work reasonably well across drivers and libraries.
> And if an application wants to optimize for performance (either throughput or latency), the developer should experiment to find the optimal value.
> Furthermore, designing for a build time constant max burst size throughout DPDK might provide performance benefits in itself, as the compiler can optimize for this.
>
> [1]: https://inbox.dpdk.org/dev/KdOygM96Qb6d6ADK1-AcnA@monjalon.net/
>
> Now, back to your question...
> As a workaround, I can sample Graph node performance data for 32 objects, instead of sampling for RTE_GRAPH_BURST_SIZE / 2.
I see, so there is no simple static parameter here. what about
tracking max burst, then report the calls/cycles for that case, the
user will also find what was that max burst, and how often it occured.
saeed
^ permalink raw reply
* Re: [PATCH v2] dts: update dts check format script and resolve errors
From: Thomas Monjalon @ 2026-06-24 13:04 UTC (permalink / raw)
To: Patrick Robb
Cc: Koushik Bhargav Nimoji, luca.vizzarro, dev, abailey, ahassick,
lylavoie
In-Reply-To: <CAK6Duxs-o_OcgjM9_dm-oBFTU7zKjk1g1X0bvbS=gtgwFSd0=Q@mail.gmail.com>
24/06/2026 00:34, Patrick Robb:
> I remember Thomas mentioning that DTS was not checking the
> dts-check-format.sh at DPDK Summit and that confused me. Perhaps he is
> running DTS and dts-check-format.sh outside of poetry (which we have said
> is okay to do) and he is on newer versions of the formatting dependencies
> than what we currently have committed to the poetry.lock.
Yes, newer versions are failing.
But with poetry, it runs fine.
^ permalink raw reply
* [PATCH] net/virtio-user: fix eventfd sharing in secondary process
From: Samar Yadav @ 2026-06-24 8:57 UTC (permalink / raw)
To: dev; +Cc: maxime.coquelin, chenbox, Samar Yadav, tiwei.bie, stable
virtio_user secondary processes cannot communicate with the vhost
backend: the kick/call eventfds are opened by the primary and never
shared, so a secondary's queue notification writes to an invalid fd
and traffic stalls.
Share the fds over a dedicated virtio-user multiprocess channel. The
primary registers a process-wide MP action that returns a port's
kick/call fds (looked up by port name); a secondary requests them at
probe time, before the port is announced.
The received fds are stored in eth_dev->process_private, which is
per-process, instead of the primary-owned shared dev->kickfds and
dev->callfds arrays; the secondary data path notifies the backend using
its own kickfd. In the primary, the MP handler reads the fd arrays under
dev->mutex, and the teardown path takes the same lock while closing and
freeing them, so the two cannot race.
Fixes: 1c8489da561b ("net/virtio-user: fix multi-process support")
Cc: tiwei.bie@intel.com
Cc: stable@dpdk.org
Signed-off-by: Samar Yadav <samaryadav5@gmail.com>
---
.mailmap | 1 +
.../net/virtio/virtio_user/virtio_user_dev.c | 56 +++-
.../net/virtio/virtio_user/virtio_user_dev.h | 20 ++
drivers/net/virtio/virtio_user_ethdev.c | 260 +++++++++++++++++-
4 files changed, 333 insertions(+), 4 deletions(-)
diff --git a/.mailmap b/.mailmap
index 4001e5fb0e70..8f921d4b9f46 100644
--- a/.mailmap
+++ b/.mailmap
@@ -1448,6 +1448,7 @@ Salem Sol <salems@nvidia.com>
Sam Andrew <samandrew@microsoft.com>
Sam Chen <sam.chen@nebula-matrix.com>
Sam Grove <sam.grove@sifive.com>
+Samar Yadav <samaryadav5@gmail.com> <samar.yadav@broadcom.com>
Sameer Vaze <svaze@qti.qualcomm.com>
Sameh Gobriel <sameh.gobriel@intel.com>
Samik Gupta <samik.gupta@broadcom.com>
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index f3df73c1f0ca..5e431ebc6511 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -34,6 +34,54 @@ const char * const virtio_user_backend_strings[] = {
[VIRTIO_USER_BACKEND_VHOST_VDPA] = "VHOST_VDPA",
};
+/*
+ * Collect the primary device's kick/call fds (interleaved kick,call per queue)
+ * for sharing with a secondary process. Caller must serialize against the
+ * control path (dev->mutex) so the fd arrays are not freed concurrently.
+ */
+int
+virtio_user_get_eventfds_from_dev(struct virtio_user_dev *dev,
+ int fds[VIRTIO_USER_MAX_EVENTFDS])
+{
+ uint32_t max_queues;
+ int i, total_fds = 0;
+ int kickfd, callfd;
+
+ if (dev == NULL || fds == NULL)
+ return -EINVAL;
+
+ if (dev->kickfds == NULL || dev->callfds == NULL) {
+ PMD_INIT_LOG(ERR, "Device eventfd arrays not initialized");
+ return -EINVAL;
+ }
+
+ max_queues = dev->max_queue_pairs * 2;
+ if (dev->hw_cvq)
+ max_queues += 1;
+
+ /* each queue contributes a kick and a call fd */
+ if (max_queues * 2 > VIRTIO_USER_MAX_EVENTFDS) {
+ PMD_INIT_LOG(ERR,
+ "Device needs %u eventfds, exceeds MP limit %d",
+ max_queues * 2, VIRTIO_USER_MAX_EVENTFDS);
+ return -E2BIG;
+ }
+
+ for (i = 0; i < (int)max_queues; i++) {
+ kickfd = dev->kickfds[i];
+ callfd = dev->callfds[i];
+ if (kickfd < 0 || callfd < 0) {
+ PMD_INIT_LOG(ERR, "Queue %d has invalid fds (kick=%d call=%d)",
+ i, kickfd, callfd);
+ return -EINVAL;
+ }
+ fds[total_fds++] = kickfd;
+ fds[total_fds++] = callfd;
+ }
+
+ return total_fds;
+}
+
static int
virtio_user_uninit_notify_queue(struct virtio_user_dev *dev, uint32_t queue_sel)
{
@@ -865,9 +913,15 @@ virtio_user_dev_uninit(struct virtio_user_dev *dev)
rte_mem_event_callback_unregister(VIRTIO_USER_MEM_EVENT_CLB_NAME, dev);
+ /*
+ * Serialize closing/freeing the kick/call fd arrays against the MP
+ * handler, which reads them under the same lock to share them with
+ * secondary processes.
+ */
+ pthread_mutex_lock(&dev->mutex);
virtio_user_dev_uninit_notify(dev);
-
virtio_user_free_vrings(dev);
+ pthread_mutex_unlock(&dev->mutex);
free(dev->ifname);
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h
index 66400b3b6295..c00297c79ed8 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.h
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h
@@ -11,6 +11,11 @@
#include "../virtio.h"
#include "../virtio_ring.h"
+#include <rte_eal.h>
+
+/* Max eventfds shareable over the MP channel (bounded by SCM_RIGHTS). */
+#define VIRTIO_USER_MAX_EVENTFDS RTE_MP_MAX_FD_NUM
+
enum virtio_user_backend_type {
VIRTIO_USER_BACKEND_UNKNOWN,
VIRTIO_USER_BACKEND_VHOST_USER,
@@ -89,5 +94,20 @@ int virtio_user_dev_get_rss_config(struct virtio_user_dev *dev, void *dst, size_
int length);
void virtio_user_dev_delayed_disconnect_handler(void *param);
int virtio_user_dev_server_reconnect(struct virtio_user_dev *dev);
+
+/**
+ * Collect a primary device's kick/call eventfds for sharing with a
+ * secondary process over the multiprocess channel.
+ *
+ * @param dev
+ * Pointer to the virtio_user device (primary).
+ * @param fds
+ * Output array, must hold at least VIRTIO_USER_MAX_EVENTFDS elements.
+ * @return
+ * Number of fds written on success, negative errno on error.
+ */
+int virtio_user_get_eventfds_from_dev(struct virtio_user_dev *dev,
+ int fds[VIRTIO_USER_MAX_EVENTFDS]);
+
extern const char * const virtio_user_backend_strings[];
#endif
diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
index 747dddeb2eba..1c724ad59ea6 100644
--- a/drivers/net/virtio/virtio_user_ethdev.c
+++ b/drivers/net/virtio/virtio_user_ethdev.c
@@ -27,6 +27,35 @@
#include "virtio_rxtx.h"
#include "virtio_user/virtio_user_dev.h"
#include "virtio_user/vhost.h"
+#include <errno.h>
+#include <rte_errno.h>
+#include <rte_string_fns.h>
+#include <rte_spinlock.h>
+
+/* Virtio-user multiprocess communication channel */
+#define VIRTIO_USER_MP_NAME "virtio_user_mp"
+
+struct virtio_user_mp_param {
+ char port_name[RTE_DEV_NAME_MAX_LEN];
+};
+
+/*
+ * Per-process private data, referenced by eth_dev->process_private which (unlike
+ * dev_private) is NOT shared between primary and secondary processes. A secondary
+ * stores the kick/call fds it receives from the primary here, so it never mutates
+ * the primary-owned shared dev->kickfds/dev->callfds arrays. callfds are kept for
+ * a complete per-process view of the backend fds; only kickfds are used by the
+ * secondary data path today.
+ */
+struct virtio_user_proc_priv {
+ uint32_t nr_queues;
+ int *kickfds;
+ int *callfds;
+};
+
+/* Guards one-time registration of the process-wide MP action. */
+static rte_spinlock_t virtio_user_mp_lock = RTE_SPINLOCK_INITIALIZER;
+static bool virtio_user_mp_registered;
#define virtio_user_get_dev(hwp) container_of(hwp, struct virtio_user_dev, hw)
@@ -269,6 +298,26 @@ virtio_user_del_queue(struct virtio_hw *hw, struct virtqueue *vq)
virtio_user_dev_destroy_shadow_cvq(dev);
}
+/*
+ * Return the kick fd to notify the backend for a queue in the running process.
+ * The secondary uses its own fds (process_private); the primary owns dev->kickfds.
+ */
+static int
+virtio_user_get_kickfd(struct virtio_hw *hw, struct virtio_user_dev *dev,
+ uint16_t queue_idx)
+{
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+ struct rte_eth_dev *eth_dev = &rte_eth_devices[hw->port_id];
+ struct virtio_user_proc_priv *pp = eth_dev->process_private;
+
+ if (pp == NULL || queue_idx >= pp->nr_queues)
+ return -1;
+ return pp->kickfds[queue_idx];
+ }
+
+ return dev->kickfds[queue_idx];
+}
+
static void
virtio_user_notify_queue(struct virtio_hw *hw, struct virtqueue *vq)
{
@@ -282,8 +331,10 @@ virtio_user_notify_queue(struct virtio_hw *hw, struct virtqueue *vq)
}
if (!dev->notify_area) {
- if (write(dev->kickfds[vq->vq_queue_index], ¬ify_data,
- sizeof(notify_data)) < 0)
+ int kickfd = virtio_user_get_kickfd(hw, dev, vq->vq_queue_index);
+
+ if (kickfd < 0 || write(kickfd, ¬ify_data,
+ sizeof(notify_data)) < 0)
PMD_DRV_LOG(ERR, "failed to kick backend: %s",
strerror(errno));
return;
@@ -495,6 +546,166 @@ virtio_user_eth_dev_free(struct rte_eth_dev *eth_dev)
rte_eth_dev_release_port(eth_dev);
}
+/* Close and free a secondary's per-process eventfd storage. */
+static void
+virtio_user_free_proc_priv(struct rte_eth_dev *eth_dev)
+{
+ struct virtio_user_proc_priv *pp = eth_dev->process_private;
+ uint32_t i;
+
+ if (pp == NULL)
+ return;
+
+ for (i = 0; i < pp->nr_queues; i++) {
+ if (pp->kickfds != NULL && pp->kickfds[i] >= 0)
+ close(pp->kickfds[i]);
+ if (pp->callfds != NULL && pp->callfds[i] >= 0)
+ close(pp->callfds[i]);
+ }
+
+ rte_free(pp->kickfds);
+ rte_free(pp->callfds);
+ rte_free(pp);
+ eth_dev->process_private = NULL;
+}
+
+/*
+ * Primary-side MP handler: reply with this port's kick/call eventfds so the
+ * requesting secondary can talk to the vhost backend. Always sends a reply
+ * (num_fds == 0 on error) so the secondary fails fast instead of timing out.
+ */
+static int
+virtio_user_mp_primary_handler(const struct rte_mp_msg *msg, const void *peer)
+{
+ const struct virtio_user_mp_param *param =
+ (const struct virtio_user_mp_param *)msg->param;
+ int eventfds[VIRTIO_USER_MAX_EVENTFDS];
+ struct rte_eth_dev *eth_dev;
+ struct virtio_user_dev *dev;
+ struct rte_mp_msg reply;
+ int num_fds;
+ int i;
+
+ memset(&reply, 0, sizeof(reply));
+ strlcpy(reply.name, msg->name, sizeof(reply.name));
+ reply.len_param = 0;
+ reply.num_fds = 0;
+
+ eth_dev = rte_eth_dev_get_by_name(param->port_name);
+ if (eth_dev == NULL || eth_dev->data->dev_private == NULL) {
+ PMD_INIT_LOG(ERR, "Failed to find virtio_user port: %s",
+ param->port_name);
+ return rte_mp_reply(&reply, peer);
+ }
+
+ dev = eth_dev->data->dev_private;
+
+ /* serialize against control-path changes to the fd arrays */
+ pthread_mutex_lock(&dev->mutex);
+ num_fds = virtio_user_get_eventfds_from_dev(dev, eventfds);
+ if (num_fds >= 0 && num_fds <= RTE_MP_MAX_FD_NUM) {
+ reply.num_fds = num_fds;
+ for (i = 0; i < num_fds; i++)
+ reply.fds[i] = eventfds[i];
+ } else {
+ PMD_INIT_LOG(ERR, "Cannot share eventfds for %s (ret=%d)",
+ param->port_name, num_fds);
+ }
+ pthread_mutex_unlock(&dev->mutex);
+
+ return rte_mp_reply(&reply, peer);
+}
+
+/*
+ * Secondary-side: request the primary's kick/call eventfds and store them in
+ * this process's eth_dev->process_private. The shared dev->kickfds/dev->callfds
+ * arrays (owned by the primary) are never touched.
+ */
+static int
+virtio_user_sync_eventfds(struct rte_eth_dev *eth_dev, struct virtio_user_dev *dev)
+{
+ struct rte_mp_msg mp_req, *mp_rep;
+ struct rte_mp_reply mp_reply = {0};
+ struct virtio_user_mp_param *req_param;
+ struct timespec ts = {.tv_sec = 5, .tv_nsec = 0};
+ struct virtio_user_proc_priv *pp;
+ uint32_t total_queues, i;
+ int nr_fds, ret = 0;
+
+ if (dev == NULL)
+ return -EINVAL;
+
+ if (rte_eal_process_type() != RTE_PROC_SECONDARY)
+ return -EINVAL;
+
+ total_queues = dev->max_queue_pairs * 2 + (dev->hw_cvq ? 1 : 0);
+
+ pp = rte_zmalloc("virtio_user_proc_priv", sizeof(*pp), 0);
+ if (pp == NULL)
+ return -ENOMEM;
+
+ pp->kickfds = rte_malloc("virtio_user_proc_priv",
+ total_queues * sizeof(int), 0);
+ pp->callfds = rte_malloc("virtio_user_proc_priv",
+ total_queues * sizeof(int), 0);
+ if (pp->kickfds == NULL || pp->callfds == NULL) {
+ ret = -ENOMEM;
+ goto err_free;
+ }
+ for (i = 0; i < total_queues; i++) {
+ pp->kickfds[i] = -1;
+ pp->callfds[i] = -1;
+ }
+
+ memset(&mp_req, 0, sizeof(mp_req));
+ req_param = (struct virtio_user_mp_param *)mp_req.param;
+ strlcpy(req_param->port_name, eth_dev->data->name,
+ sizeof(req_param->port_name));
+ strlcpy(mp_req.name, VIRTIO_USER_MP_NAME, RTE_MP_MAX_NAME_LEN);
+ mp_req.len_param = sizeof(*req_param);
+ mp_req.num_fds = 0;
+
+ if (rte_mp_request_sync(&mp_req, &mp_reply, &ts) < 0 ||
+ mp_reply.nb_received != 1) {
+ PMD_INIT_LOG(ERR, "Failed to request eventfds from primary");
+ free(mp_reply.msgs);
+ ret = -EIO;
+ goto err_free;
+ }
+
+ mp_rep = &mp_reply.msgs[0];
+ nr_fds = mp_rep->num_fds;
+
+ /* a partially-synced device cannot work: treat any mismatch as fatal */
+ if (nr_fds != (int)total_queues * 2) {
+ PMD_INIT_LOG(ERR, "Expected %u eventfds, received %d",
+ total_queues * 2, nr_fds);
+ for (i = 0; i < (uint32_t)nr_fds; i++)
+ close(mp_rep->fds[i]);
+ free(mp_reply.msgs);
+ ret = -EPROTO;
+ goto err_free;
+ }
+
+ for (i = 0; i < total_queues; i++) {
+ pp->kickfds[i] = mp_rep->fds[i * 2];
+ pp->callfds[i] = mp_rep->fds[i * 2 + 1];
+ }
+ pp->nr_queues = total_queues;
+ free(mp_reply.msgs);
+
+ eth_dev->process_private = pp;
+ PMD_INIT_LOG(DEBUG, "Synced %u queue eventfds for secondary port %s",
+ total_queues, eth_dev->data->name);
+ return 0;
+
+err_free:
+ rte_free(pp->kickfds);
+ rte_free(pp->callfds);
+ rte_free(pp);
+ return ret;
+}
+
/* Dev initialization routine. Invoked once for each virtio vdev at
* EAL init time, see rte_bus_probe().
* Returns 0 on success.
@@ -542,6 +753,17 @@ virtio_user_pmd_probe(struct rte_vdev_device *vdev)
eth_dev->dev_ops = &virtio_user_secondary_eth_dev_ops;
eth_dev->device = &vdev->device;
+
+ /* populate this process's eventfds before announcing the port */
+ ret = virtio_user_sync_eventfds(eth_dev, dev);
+ if (ret < 0) {
+ PMD_INIT_LOG(ERR,
+ "Failed to sync eventfds in secondary: %d",
+ ret);
+ rte_eth_dev_release_port(eth_dev);
+ return ret;
+ }
+
rte_eth_dev_probing_finish(eth_dev);
return 0;
}
@@ -722,6 +944,36 @@ virtio_user_pmd_probe(struct rte_vdev_device *vdev)
}
}
+ /*
+ * Register the process-wide MP action once so secondaries can fetch a
+ * port's eventfds by name. It is intentionally left registered for the
+ * lifetime of the process (cleaned up at exit): unregistering per device
+ * cannot drain handler calls already dispatched on the EAL MP thread.
+ */
+ rte_spinlock_lock(&virtio_user_mp_lock);
+ if (!virtio_user_mp_registered) {
+ ret = rte_mp_action_register(VIRTIO_USER_MP_NAME,
+ virtio_user_mp_primary_handler);
+ if (ret < 0 && rte_errno != EEXIST) {
+ rte_spinlock_unlock(&virtio_user_mp_lock);
+ if (rte_errno == ENOTSUP) {
+ PMD_INIT_LOG(WARNING,
+ "MP unsupported, secondary eventfd sharing disabled");
+ rte_eth_dev_probing_finish(eth_dev);
+ ret = 0;
+ goto end;
+ }
+ PMD_INIT_LOG(ERR, "Failed to register MP handler: %s",
+ strerror(rte_errno));
+ virtio_user_dev_uninit(dev);
+ virtio_user_eth_dev_free(eth_dev);
+ ret = -1;
+ goto end;
+ }
+ virtio_user_mp_registered = true;
+ }
+ rte_spinlock_unlock(&virtio_user_mp_lock);
+
rte_eth_dev_probing_finish(eth_dev);
ret = 0;
@@ -749,8 +1001,10 @@ virtio_user_pmd_remove(struct rte_vdev_device *vdev)
if (!eth_dev)
return 0;
- if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ virtio_user_free_proc_priv(eth_dev);
return rte_eth_dev_release_port(eth_dev);
+ }
/* make sure the device is stopped, queues freed */
return rte_eth_dev_close(eth_dev->data->port_id);
--
2.52.0
^ permalink raw reply related
* Re: [PATCH] net/intel: fix use of non-recommended string functions
From: Bruce Richardson @ 2026-06-24 12:33 UTC (permalink / raw)
To: Loftus, Ciara
Cc: dev@dpdk.org, Shetty, Praveen, Burakov, Anatoly,
Medvedkin, Vladimir, Wani, Shaiq, stable@dpdk.org
In-Reply-To: <IA4PR11MB92788919362D4E5CF700DACA8EED2@IA4PR11MB9278.namprd11.prod.outlook.com>
On Wed, Jun 24, 2026 at 10:51:11AM +0100, Loftus, Ciara wrote:
> > Subject: [PATCH] net/intel: fix use of non-recommended string functions
> >
> > Replace use of the strncpy and strcpy functions with the safer strlcpy
> > alternative, which both bounds-checks and guarantees null termination.
> > In the process also replace instances of strcat with strlcat where
> > appropriate.
> >
> > Fixes: 2d823ecd671c ("net/cpfl: support device initialization")
> > Fixes: c4c59ae62793 ("net/cpfl: refactor flow parser")
> > Fixes: c10881d3ee74 ("net/cpfl: support flow prog action")
> > Fixes: 9481b0902efe ("net/ice: send driver version to firmware")
> > Fixes: 7f7cbf80bdb7 ("net/ice: factorize firmware loading")
> > Fixes: 549343c25db8 ("net/idpf: support device initialization")
> > Fixes: 484f8e407a94 ("net/igb: support xstats by ID")
> > Fixes: fca82a8accf9 ("net/ixgbe: support xstats by ID")
> > Fixes: e163c18a15b0 ("net/i40e: update ptype and pctype info")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
>
> Acked-by: Ciara Loftus <ciara.loftus@intel.com>
>
Applied to dpdk-next-net-intel.
/Bruce
^ permalink raw reply
* [PATCH v5 24/24] doc: add release notes for BPF validation fixes
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
Cc: dev, Konstantin Ananyev
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
Document hardening the BPF validator.
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
doc/guides/rel_notes/release_26_07.rst | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/doc/guides/rel_notes/release_26_07.rst b/doc/guides/rel_notes/release_26_07.rst
index 8471966a4992..9376e7acad24 100644
--- a/doc/guides/rel_notes/release_26_07.rst
+++ b/doc/guides/rel_notes/release_26_07.rst
@@ -164,7 +164,7 @@ New Features
for installing already loaded BPF programs as port callbacks
(as opposed to loading them directly from ELF files).
-* **Added BPF validation debugging API.**
+* **Added BPF validation debugging API and hardened BPF validator.**
* Introduced a new set of APIs (prefixed with ``rte_bpf_validate_debug_``) to
introspect the BPF validator. This provides a mechanism to set breakpoints
@@ -172,6 +172,10 @@ New Features
(such as tracked register bounds). This API is crucial primarily for writing
comprehensive tests for the validator, but also serves as a foundation for a
future interactive eBPF validation debugger.
+ * Fixed numerous bugs in the BPF validator's abstract interpretation logic,
+ including incorrect bounds tracking for jumps and arithmetic operations, as
+ well as fixing several instances of undefined behavior (UB) when verifying
+ malicious or corrupt programs.
* **Added AI review helpers.**
--
2.43.0
^ permalink raw reply related
* [PATCH v5 23/24] bpf/validate: prevent overflow when building graph
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
To: Konstantin Ananyev; +Cc: dev, stable, Claudia Cauli
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
Function `evst_pool_init` for malicious or corrupt BPF program with
number of conditional jumps exceeding a third of UINT32_MAX could cause
arithmetic and buffer overflows when working with the program graph.
Fix the issue by limiting maximum number of conditional jumps supported
by UINT32_MAX / 4, or more than 1 billion.
Fixes: 8021917293d0 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org
Reported-by: Claudia Cauli <claudiacauli@gmail.com>
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
lib/bpf/bpf_validate.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/bpf/bpf_validate.c b/lib/bpf/bpf_validate.c
index 03c590c75377..f9960088a285 100644
--- a/lib/bpf/bpf_validate.c
+++ b/lib/bpf/bpf_validate.c
@@ -2662,6 +2662,10 @@ evst_pool_init(struct bpf_verifier *bvf)
{
uint32_t k, n;
+ if (bvf->nb_jcc_nodes > UINT32_MAX / 4)
+ /* Calculations that follow may overflow. */
+ return -E2BIG;
+
/*
* We need nb_jcc_nodes + 1 for save_cur/restore_cur
* remaining ones will be used for state tracking/pruning.
--
2.43.0
^ permalink raw reply related
* [PATCH v5 17/24] bpf/validate: fix BPF_JMP empty range handling
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
To: Konstantin Ananyev; +Cc: dev, stable, Claudia Cauli
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
Function `eval_jcc` did not account for 'dynamically unreachable' code
paths. Some code paths may be _dynamically_ unreachable, which measn
that according to validator calculations no valid values are left to
evaluate. This does not indicate dead code since same code might be
reachable through other code paths. Previous behaviour resulted in:
* undefined behaviour in corner cases;
* ranges breaking min <= max invariant relied upon in multiple places
(e.g. signed overflow detection in `eval_mul` only checks `s.min` to
make sure the range is non-negative and so on);
* unnecessary work for validator contributing to exponential code paths
grow in some cases.
E.g. consider the following program with the current validation code:
Tested program:
0: mov r0, #0x0
1: mov r2, #0x2a
2: lddw r3, #0x8000000000000000
4: jslt r2, r3, L7 ; tested instruction
5: mov r0, #0x1
6: exit
7: mov r0, #0x2
8: exit
Pre-state:
r2: 42
r3: INT64_MIN
Post-state:
r2: 42
r3: INT64_MIN
Jump-state:
r2: 42
r3: 43..INT64_MIN INTERSECT 0x8000000000000000 (!)
At step 7 after jump from tested instruction validator considers r3 to
equal 0x8000000000000000 if viewed as unsigned, or have nonsensical
range 43..INT64_MIN if viewed as signed. In reality there is just no
valid range for this code path since it will never occur.
With sanitizer the following diagnostic is generated:
lib/bpf/bpf_validate.c:1824:15: runtime error: signed integer
overflow: -9223372036854775808 - 1 cannot be represented in type
'long int'
#0 0x000002761e41 in eval_jslt_jsge lib/bpf/bpf_validate.c:1824
#1 0x000002762acb in eval_jcc lib/bpf/bpf_validate.c:1881
#2 0x00000276b749 in evaluate lib/bpf/bpf_validate.c:3245
...
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
lib/bpf/bpf_validate.c:1824:15
Add pruning of dynamically unreachable code paths that arise from
ordering comparisons. Add tests for remaining ordering jump cases.
Fixes: 8021917293d0 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org
Reported-by: Claudia Cauli <claudiacauli@gmail.com>
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
app/test/test_bpf_validate.c | 277 ++++++++++++++++++++++++++++++-
lib/bpf/bpf_validate.c | 96 ++++++++---
lib/bpf/rte_bpf_validate_debug.h | 2 +
3 files changed, 351 insertions(+), 24 deletions(-)
diff --git a/app/test/test_bpf_validate.c b/app/test/test_bpf_validate.c
index 63db2e252dd3..2755df1e65d9 100644
--- a/app/test/test_bpf_validate.c
+++ b/app/test/test_bpf_validate.c
@@ -135,6 +135,11 @@ static const struct domain unknown = {
.u = { .min = 0, .max = UINT64_MAX },
};
+/* Unreachable state. */
+static const struct state unreachable = {
+ .is_unreachable = true,
+};
+
/* BUILDING DOMAINS */
@@ -1710,6 +1715,55 @@ test_jmp64_jslt_x(void)
REGISTER_FAST_TEST(bpf_validate_jmp64_jslt_x_autotest, NOHUGE_OK, ASAN_OK,
test_jmp64_jslt_x);
+/* Jump on ordering comparisons with potential bound overflow. */
+static int
+test_jmp64_ordering_overflow(void)
+{
+ /* In this test signed and unsigned cases are spelled out explicitly. */
+ const bool also_signed = false;
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JSLT | BPF_X),
+ },
+ .pre.dst = make_singleton_domain(42),
+ .pre.src = make_singleton_domain(INT64_MIN),
+ .jump = unreachable,
+ }, also_signed), "signed less than INT64_MIN");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JSGT | BPF_X),
+ },
+ .pre.dst = make_singleton_domain(42),
+ .pre.src = make_singleton_domain(INT64_MAX),
+ .jump = unreachable,
+ }, also_signed), "signed greater than INT64_MAX");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_X),
+ },
+ .pre.dst = make_singleton_domain(42),
+ .pre.src = make_singleton_domain(0),
+ .jump = unreachable,
+ }, also_signed), "unsigned less than zero");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | BPF_JGT | BPF_X),
+ },
+ .pre.dst = make_singleton_domain(42),
+ .pre.src = make_singleton_domain(UINT64_MAX),
+ .jump = unreachable,
+ }, also_signed), "unsigned greater than UINT64_MAX");
+
+ return TEST_SUCCESS;
+}
+
+REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_overflow_autotest, NOHUGE_OK, ASAN_OK,
+ test_jmp64_ordering_overflow);
+
/* Jump on ordering comparisons between two ranges. */
static int
test_jmp64_ordering_ranges(void)
@@ -1717,6 +1771,29 @@ test_jmp64_ordering_ranges(void)
/* All ranges used are valid for both signed and unsigned comparisons. */
const bool also_signed = true;
+ /*
+ * 20 ---- dst ---- 60
+ * 0 - src - 10
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .pre.src = make_signed_domain(0, 10),
+ .jump = unreachable,
+ }, also_signed), "strict, dst range strongly greater than src range");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .pre.src = make_signed_domain(0, 10),
+ .jump = unreachable,
+ }, also_signed), "non-strict, dst range strongly greater than src range");
+
/*
* 20 ---- dst ---- 60
* 10 -- src -- 40
@@ -1817,15 +1894,38 @@ test_jmp64_ordering_ranges(void)
.post.src = make_signed_domain(40, 59),
}, also_signed), "non-strict, dst range weakly less than src range");
+ /*
+ * 20 ---- dst ---- 60
+ * 70 - src - 80
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .pre.src = make_signed_domain(70, 80),
+ .post = unreachable,
+ }, also_signed), "strict, dst range strongly less than src range");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .pre.src = make_signed_domain(70, 80),
+ .post = unreachable,
+ }, also_signed), "non-strict, dst range strongly less than src range");
+
return TEST_SUCCESS;
}
REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_ranges_autotest, NOHUGE_OK, ASAN_OK,
test_jmp64_ordering_ranges);
-/* Jump on ordering comparisons with singleton. */
+/* Jump on ordering comparisons with singleton inside the range. */
static int
-test_jmp64_ordering_singleton(void)
+test_jmp64_ordering_singleton_inside(void)
{
/* All ranges used are valid for both signed and unsigned comparisons. */
const bool also_signed = true;
@@ -1878,8 +1978,177 @@ test_jmp64_ordering_singleton(void)
return TEST_SUCCESS;
}
-REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_singleton_autotest, NOHUGE_OK, ASAN_OK,
- test_jmp64_ordering_singleton);
+REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_singleton_inside_autotest, NOHUGE_OK, ASAN_OK,
+ test_jmp64_ordering_singleton_inside);
+
+/* Jump on ordering comparisons with singleton outside the range. */
+static int
+test_jmp64_ordering_singleton_outside(void)
+{
+ /* All ranges used are valid for both signed and unsigned comparisons. */
+ const bool also_signed = true;
+
+ /*
+ * 20 ---- dst ---- 60
+ * imm
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_K),
+ .imm = 10,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .jump = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JLT | BPF_K) check, range greater than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_K),
+ .imm = 10,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .jump = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JLE | BPF_K) check, range greater than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | BPF_JGT | BPF_K),
+ .imm = 10,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .post = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JGT | BPF_K) check, range greater than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | BPF_JGE | BPF_K),
+ .imm = 10,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .post = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JGE | BPF_K) check, range greater than imm");
+
+ /*
+ * 20 ---- dst ---- 60
+ * imm
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_K),
+ .imm = 70,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .post = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JLT | BPF_K) check, range less than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_K),
+ .imm = 70,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .post = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JLE | BPF_K) check, range less than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | BPF_JGT | BPF_K),
+ .imm = 70,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .jump = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JGT | BPF_K) check, range less than imm");
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | BPF_JGE | BPF_K),
+ .imm = 70,
+ },
+ .pre.dst = make_signed_domain(20, 60),
+ .jump = unreachable,
+ }, also_signed), "(BPF_JMP | EBPF_JGE | BPF_K) check, range less than imm");
+
+ return TEST_SUCCESS;
+}
+
+REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_singleton_outside_autotest, NOHUGE_OK, ASAN_OK,
+ test_jmp64_ordering_singleton_outside);
+
+/* Jump on ordering comparisons with ranges "touching" each other. */
+static int
+test_jmp64_ordering_touching(void)
+{
+ /* All ranges used are valid for both signed and unsigned comparisons. */
+ const bool also_signed = true;
+
+ for (int overlap = 0; overlap != 3; ++overlap) {
+
+ /*
+ * 20 - dst - 30
+ * 10 - src - (19 + overlap)
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 30),
+ .pre.src = make_signed_domain(10, 19 + overlap),
+ .jump = overlap <= 1 ? unreachable : (struct state){
+ .dst = make_singleton_domain(20),
+ .src = make_singleton_domain(21),
+ },
+ }, also_signed), "strict, dst left touching src right, overlap=%d", overlap);
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_X),
+ },
+ .pre.dst = make_signed_domain(20, 30),
+ .pre.src = make_signed_domain(10, 19 + overlap),
+ .jump = overlap < 1 ? unreachable : (struct state){
+ .dst = make_signed_domain(20, 19 + overlap),
+ .src = make_signed_domain(20, 19 + overlap),
+ },
+ }, also_signed), "non-strict, dst left touching src right, overlap=%d", overlap);
+
+ /*
+ * 10 - dst - (19 + overlap)
+ * 20 - src - 30
+ */
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLT | BPF_X),
+ },
+ .pre.dst = make_signed_domain(10, 19 + overlap),
+ .pre.src = make_signed_domain(20, 30),
+ .post = overlap < 1 ? unreachable : (struct state){
+ .dst = make_signed_domain(20, 19 + overlap),
+ .src = make_signed_domain(20, 19 + overlap),
+ },
+ }, also_signed), "strict, dst right touching src left, overlap=%d", overlap);
+
+ TEST_ASSERT_SUCCESS(verify_comparison((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (BPF_JMP | EBPF_JLE | BPF_X),
+ },
+ .pre.dst = make_signed_domain(10, 19 + overlap),
+ .pre.src = make_signed_domain(20, 30),
+ .post = overlap <= 1 ? unreachable : (struct state){
+ .dst = make_singleton_domain(21),
+ .src = make_singleton_domain(20),
+ },
+ }, also_signed), "non-strict, dst right touching src left, overlap=%d", overlap);
+ }
+
+ return TEST_SUCCESS;
+}
+
+REGISTER_FAST_TEST(bpf_validate_jmp64_ordering_touching_autotest, NOHUGE_OK, ASAN_OK,
+ test_jmp64_ordering_touching);
/* 64-bit load from heap (should be set to unknown). */
static int
diff --git a/lib/bpf/bpf_validate.c b/lib/bpf/bpf_validate.c
index 2e535069fe4d..af084e36c8d0 100644
--- a/lib/bpf/bpf_validate.c
+++ b/lib/bpf/bpf_validate.c
@@ -19,6 +19,9 @@
#define BPF_ARG_PTR_STACK RTE_BPF_ARG_RESERVED
+/* type containing no values (AKA "bottom", "never" etc) */
+#define BPF_ARG_UNINHABITED ((enum rte_bpf_arg_type)(RTE_BPF_ARG_UNDEF - 1))
+
struct bpf_reg_val {
struct rte_bpf_arg v;
uint64_t mask;
@@ -36,6 +39,8 @@ struct bpf_eval_state {
SLIST_ENTRY(bpf_eval_state) next; /* for @safe list traversal */
struct bpf_reg_val rv[EBPF_REG_NUM];
struct bpf_reg_val sv[MAX_BPF_STACK_SIZE / sizeof(uint64_t)];
+ /* flag set for branches determined to be dynamically unreachable */
+ bool unreachable;
};
SLIST_HEAD(bpf_evst_head, bpf_eval_state);
@@ -174,6 +179,9 @@ __rte_bpf_validate_can_access(const struct bpf_verifier *verifier,
struct value_set access_set;
uint32_t opsz;
+ if (st->unreachable)
+ return -ENOENT;
+
switch (BPF_CLASS(access->code)) {
case BPF_LDX:
rv = &st->rv[access->src_reg];
@@ -310,6 +318,10 @@ __rte_bpf_validate_may_jump(const struct bpf_verifier *verifier,
if (!may_jump_code_is_supported(jump->code))
return -ENOTSUP;
+ if (st->unreachable)
+ /* Set no bits since neither false nor true is possible. */
+ return 0;
+
rd = &st->rv[jump->dst_reg];
dst_set = (rd->v.type == RTE_BPF_ARG_UNDEF) ? value_set_full :
value_set_from_pair(rd->s.min, rd->s.max, rd->u.min, rd->u.max);
@@ -1521,40 +1533,68 @@ static void
eval_jgt_jle(struct bpf_reg_val *trd, struct bpf_reg_val *trs,
struct bpf_reg_val *frd, struct bpf_reg_val *frs)
{
- frd->u.max = RTE_MIN(frd->u.max, frs->u.max);
- frs->u.min = RTE_MAX(frs->u.min, frd->u.min);
- trd->u.min = RTE_MAX(trd->u.min, trs->u.min + 1);
- trs->u.max = RTE_MIN(trs->u.max, trd->u.max - 1);
+ if (frd->u.min <= frs->u.max) {
+ frd->u.max = RTE_MIN(frd->u.max, frs->u.max);
+ frs->u.min = RTE_MAX(frs->u.min, frd->u.min);
+ } else
+ frd->v.type = frs->v.type = BPF_ARG_UNINHABITED;
+
+ if (trs->u.min < trd->u.max) {
+ trd->u.min = RTE_MAX(trd->u.min, trs->u.min + 1);
+ trs->u.max = RTE_MIN(trs->u.max, trd->u.max - 1);
+ } else
+ trd->v.type = trs->v.type = BPF_ARG_UNINHABITED;
}
static void
eval_jlt_jge(struct bpf_reg_val *trd, struct bpf_reg_val *trs,
struct bpf_reg_val *frd, struct bpf_reg_val *frs)
{
- frd->u.min = RTE_MAX(frd->u.min, frs->u.min);
- frs->u.max = RTE_MIN(frs->u.max, frd->u.max);
- trd->u.max = RTE_MIN(trd->u.max, trs->u.max - 1);
- trs->u.min = RTE_MAX(trs->u.min, trd->u.min + 1);
+ if (frs->u.min <= frd->u.max) {
+ frd->u.min = RTE_MAX(frd->u.min, frs->u.min);
+ frs->u.max = RTE_MIN(frs->u.max, frd->u.max);
+ } else
+ frd->v.type = frs->v.type = BPF_ARG_UNINHABITED;
+
+ if (trd->u.min < trs->u.max) {
+ trd->u.max = RTE_MIN(trd->u.max, trs->u.max - 1);
+ trs->u.min = RTE_MAX(trs->u.min, trd->u.min + 1);
+ } else
+ trd->v.type = trs->v.type = BPF_ARG_UNINHABITED;
}
static void
eval_jsgt_jsle(struct bpf_reg_val *trd, struct bpf_reg_val *trs,
struct bpf_reg_val *frd, struct bpf_reg_val *frs)
{
- frd->s.max = RTE_MIN(frd->s.max, frs->s.max);
- frs->s.min = RTE_MAX(frs->s.min, frd->s.min);
- trd->s.min = RTE_MAX(trd->s.min, trs->s.min + 1);
- trs->s.max = RTE_MIN(trs->s.max, trd->s.max - 1);
+ if (frd->s.min <= frs->s.max) {
+ frd->s.max = RTE_MIN(frd->s.max, frs->s.max);
+ frs->s.min = RTE_MAX(frs->s.min, frd->s.min);
+ } else
+ frd->v.type = frs->v.type = BPF_ARG_UNINHABITED;
+
+ if (trs->s.min < trd->s.max) {
+ trd->s.min = RTE_MAX(trd->s.min, trs->s.min + 1);
+ trs->s.max = RTE_MIN(trs->s.max, trd->s.max - 1);
+ } else
+ trd->v.type = trs->v.type = BPF_ARG_UNINHABITED;
}
static void
eval_jslt_jsge(struct bpf_reg_val *trd, struct bpf_reg_val *trs,
struct bpf_reg_val *frd, struct bpf_reg_val *frs)
{
- frd->s.min = RTE_MAX(frd->s.min, frs->s.min);
- frs->s.max = RTE_MIN(frs->s.max, frd->s.max);
- trd->s.max = RTE_MIN(trd->s.max, trs->s.max - 1);
- trs->s.min = RTE_MAX(trs->s.min, trd->s.min + 1);
+ if (frs->s.min <= frd->s.max) {
+ frd->s.min = RTE_MAX(frd->s.min, frs->s.min);
+ frs->s.max = RTE_MIN(frs->s.max, frd->s.max);
+ } else
+ frd->v.type = frs->v.type = BPF_ARG_UNINHABITED;
+
+ if (trd->s.min < trs->s.max) {
+ trd->s.max = RTE_MIN(trd->s.max, trs->s.max - 1);
+ trs->s.min = RTE_MAX(trs->s.min, trd->s.min + 1);
+ } else
+ trd->v.type = trs->v.type = BPF_ARG_UNINHABITED;
}
static const char *
@@ -1609,6 +1649,14 @@ eval_jcc(struct bpf_verifier *bvf, const struct ebpf_insn *ins)
else if (op == EBPF_JSGE)
eval_jslt_jsge(frd, frs, trd, trs);
+ if (trd->v.type == BPF_ARG_UNINHABITED ||
+ trs->v.type == BPF_ARG_UNINHABITED)
+ tst->unreachable = true;
+
+ if (frd->v.type == BPF_ARG_UNINHABITED ||
+ frs->v.type == BPF_ARG_UNINHABITED)
+ fst->unreachable = true;
+
return NULL;
}
@@ -2349,7 +2397,7 @@ set_edge_type(struct bpf_verifier *bvf, struct inst_node *node,
* Depth-First Search (DFS) through previously constructed
* Control Flow Graph (CFG).
* Information collected at this path would be used later
- * to determine is there any loops, and/or unreachable instructions.
+ * to determine is there any loops, and/or statically unreachable instructions.
* PREREQUISITE: there is at least one node.
*/
static void
@@ -2397,7 +2445,7 @@ dfs(struct bpf_verifier *bvf)
}
/*
- * report unreachable instructions.
+ * report statically unreachable instructions.
*/
static void
log_unreachable(const struct bpf_verifier *bvf)
@@ -2970,13 +3018,21 @@ evaluate(struct bpf_verifier *bvf)
stats.nb_restore++;
}
+ if (bvf->evst->unreachable) {
+ rc = __rte_bpf_validate_debug_evaluate_step(
+ debug, get_node_idx(bvf, next),
+ RTE_BPF_VALIDATE_DEBUG_EVENT_BRANCH_UNREACHABLE);
+ if (rc < 0)
+ break;
+
+ next = NULL;
/*
* for jcc targets: check did we already evaluated
* that path and can it's evaluation be skipped that
* time.
*/
- if (node->nb_edge > 1 && prune_eval_state(bvf, node,
- next) == 0) {
+ } else if (node->nb_edge > 1 &&
+ prune_eval_state(bvf, node, next) == 0) {
rc = __rte_bpf_validate_debug_evaluate_step(
debug, get_node_idx(bvf, next),
RTE_BPF_VALIDATE_DEBUG_EVENT_BRANCH_PRUNE);
diff --git a/lib/bpf/rte_bpf_validate_debug.h b/lib/bpf/rte_bpf_validate_debug.h
index 89bf587f0211..f30fa926f10a 100644
--- a/lib/bpf/rte_bpf_validate_debug.h
+++ b/lib/bpf/rte_bpf_validate_debug.h
@@ -49,6 +49,8 @@ enum rte_bpf_validate_debug_event {
RTE_BPF_VALIDATE_DEBUG_EVENT_BRANCH_PRUNE,
/* End of branch verification, after the last verified instruction. */
RTE_BPF_VALIDATE_DEBUG_EVENT_BRANCH_RETURN,
+ /* Pruning branch as dynamically unreachable. */
+ RTE_BPF_VALIDATE_DEBUG_EVENT_BRANCH_UNREACHABLE,
/* Number of valid event values. */
RTE_BPF_VALIDATE_DEBUG_EVENT_END,
};
--
2.43.0
^ permalink raw reply related
* [PATCH v5 22/24] bpf/validate: fix BPF_XOR signed min calculation
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
To: Konstantin Ananyev; +Cc: dev, stable, Claudia Cauli
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
Function `eval_xor` calculated signed minimum using essentially unsigned
algorithm as long as any of the operands have non-negative range, which
is incorrect since it ignores any negative numbers that may have the
sign or any other bits set.
E.g. consider the following program with the current validation code:
Tested program:
0: mov r0, #0x0
1: ldxdw r2, [r1 + 0]
2: jsgt r2, #0x0, L5
3: xor r2, #0x0 ; tested instruction
4: mov r0, #0x1
5: exit
Pre-state:
r2: INT64_MIN..0
Post-state:
r2: 0
After the tested instruction validator considers r2 to equal 0, however
if -1 was loaded on step 1 it is possible for it to be -1.
Set signed range to full if any of the operands can be negative,
otherwise (if both operands are non-negative) use same algorithm as for
unsigned numbers. Add test.
Fixes: 8021917293d0 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org
Reported-by: Claudia Cauli <claudiacauli@gmail.com>
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
app/test/test_bpf_validate.c | 17 +++++++++++++++++
lib/bpf/bpf_validate.c | 2 +-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/app/test/test_bpf_validate.c b/app/test/test_bpf_validate.c
index 5cf8d99effb5..3f6747eaf6e9 100644
--- a/app/test/test_bpf_validate.c
+++ b/app/test/test_bpf_validate.c
@@ -1764,6 +1764,23 @@ test_alu64_sub_x_src_signed_max_zero(void)
REGISTER_FAST_TEST(bpf_validate_alu64_sub_x_src_signed_max_zero_autotest, NOHUGE_OK, ASAN_OK,
test_alu64_sub_x_src_signed_max_zero);
+/* 64-bit bitwise XOR between a negative scalar range and zero immediate. */
+static int
+test_alu64_xor_k_negative(void)
+{
+ return verify_instruction((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (EBPF_ALU64 | BPF_XOR | BPF_K),
+ .imm = 0,
+ },
+ .pre.dst = make_signed_domain(INT64_MIN, 0),
+ .post.dst = unknown,
+ });
+}
+
+REGISTER_FAST_TEST(bpf_validate_alu64_xor_k_negative_autotest, NOHUGE_OK, ASAN_OK,
+ test_alu64_xor_k_negative);
+
/* Jump if greater than immediate. */
static int
test_jmp64_jeq_k(void)
diff --git a/lib/bpf/bpf_validate.c b/lib/bpf/bpf_validate.c
index 131a5468dbc4..03c590c75377 100644
--- a/lib/bpf/bpf_validate.c
+++ b/lib/bpf/bpf_validate.c
@@ -910,7 +910,7 @@ eval_xor(struct bpf_reg_val *rd, const struct bpf_reg_val *rs, size_t opsz,
rd->s.max ^= rs->s.max;
/* both operands are non-negative */
- } else if (rd->s.min >= 0 || rs->s.min >= 0) {
+ } else if (rd->s.min >= 0 && rs->s.min >= 0) {
rd->s.max = eval_uor_max(rd->s.max, rs->s.max, opsz);
rd->s.min = 0;
} else
--
2.43.0
^ permalink raw reply related
* [PATCH v5 21/24] bpf/validate: fix BPF_SUB signed max zero case
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
To: Konstantin Ananyev; +Cc: dev, stable, Claudia Cauli
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
Function `eval_sub` used source register signed minimum to detect
overflow of the difference (operation result) signed minimum, and source
register signed maximum to detect overflow of the difference signed
maximum. However in the actual formula for difference source register
bounds are swapped (correctly, since we subtract it), so in overflow
detection we should also have swapped them. It caused false negatives in
certain cases.
E.g. consider the following program with the current validation code:
Tested program:
0: mov r0, #0x0
1: ldxdw r2, [r1 + 0]
2: jsgt r2, #0x0, L7
3: ldxdw r3, [r1 + 8]
4: jsgt r3, #0x0, L7
5: sub r2, r3 ; tested instruction
6: mov r0, #0x1
7: exit
Pre-state:
r2: INT64_MIN..0
r3: INT64_MIN..0
Post-state:
r2: INT64_MIN
Validator ignores overflow of signed minimum and considers result to
always equal INT64_MIN. However, if -1 was loaded on step 1 and -2 was
loaded on step 3 it is possible for the difference to equal 1.
Swap source register signed minimum and maximum in the overflow
condition to match the new range formula, add test.
Fixes: 8021917293d0 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org
Reported-by: Claudia Cauli <claudiacauli@gmail.com>
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
app/test/test_bpf_validate.c | 17 +++++++++++++++++
lib/bpf/bpf_validate.c | 4 ++--
2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/app/test/test_bpf_validate.c b/app/test/test_bpf_validate.c
index dfcf49ccb936..5cf8d99effb5 100644
--- a/app/test/test_bpf_validate.c
+++ b/app/test/test_bpf_validate.c
@@ -1747,6 +1747,23 @@ test_alu64_or_k_positive(void)
REGISTER_FAST_TEST(bpf_validate_alu64_or_k_positive_autotest, NOHUGE_OK, ASAN_OK,
test_alu64_or_k_positive);
+/* 64-bit difference between two negative ranges.. */
+static int
+test_alu64_sub_x_src_signed_max_zero(void)
+{
+ return verify_instruction((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (EBPF_ALU64 | BPF_SUB | BPF_X),
+ },
+ .pre.dst = make_signed_domain(INT64_MIN, 0),
+ .pre.src = make_signed_domain(INT64_MIN, 0),
+ .post.dst = unknown,
+ });
+}
+
+REGISTER_FAST_TEST(bpf_validate_alu64_sub_x_src_signed_max_zero_autotest, NOHUGE_OK, ASAN_OK,
+ test_alu64_sub_x_src_signed_max_zero);
+
/* Jump if greater than immediate. */
static int
test_jmp64_jeq_k(void)
diff --git a/lib/bpf/bpf_validate.c b/lib/bpf/bpf_validate.c
index abb39cfd328d..131a5468dbc4 100644
--- a/lib/bpf/bpf_validate.c
+++ b/lib/bpf/bpf_validate.c
@@ -716,9 +716,9 @@ eval_sub(struct bpf_reg_val *rd, const struct bpf_reg_val *rs, uint64_t msk)
eval_umax_bound(&rv, msk);
if ((rd->s.min != rd->s.max || rs->s.min != rs->s.max) &&
- (((rs->s.min < 0 && rv.s.min < rd->s.min) ||
+ (((rs->s.max < 0 && rv.s.min < rd->s.min) ||
rv.s.min > rd->s.min) ||
- ((rs->s.max < 0 && rv.s.max < rd->s.max) ||
+ ((rs->s.min < 0 && rv.s.max < rd->s.max) ||
rv.s.max > rd->s.max)))
eval_smax_bound(&rv, msk);
--
2.43.0
^ permalink raw reply related
* [PATCH v5 20/24] bpf/validate: fix BPF_OR min calculations
From: Marat Khalili @ 2026-06-24 12:17 UTC (permalink / raw)
To: Konstantin Ananyev; +Cc: dev, stable, Claudia Cauli
In-Reply-To: <20260624121800.40635-1-marat.khalili@huawei.com>
This commit fixes two different problems in signed and unsigned minimum
calculations within `eval_or`. Passing tests requires both problems to
be fixed which is why the changes are squashed in one commit.
1) Function `eval_or` calculated result signed minimum as bitwise OR
between corresponding minimums as long as any of them is non-negative,
which is incorrect since values within the range can have zeroes where
the minimums don't, including the sign bit.
E.g. consider the following program with the current validation code:
Tested program:
0: mov r0, #0x0
1: ldxdw r2, [r1 + 0]
2: jlt r2, #0x5, L8
3: jgt r2, #0x6, L8
4: jslt r2, #0x5, L8
5: jsgt r2, #0x6, L8
6: or r2, #0xfffffffe ; tested instruction
7: mov r0, #0x1
8: exit
Pre-state:
r2: 5..6
Post-state:
r2: -1
After the tested instruction validator considers r2 to always equal -1,
however if 6 was loaded on step 1 it is possible for it to be -2:
0x6 & 0xfffffffffffffffe == 0xfffffffffffffffe = -2
Set signed range to full if any of the operands can be negative,
otherwise use the maximum of both minimums as a new signed minimum
following the idea that result of bitwise OR cannot be smaller than its
operands. Add test.
2) Function `eval_or` calculated result unsigned minimum as bitwise OR
between corresponding minimums, which is incorrect since values within
the range can have zeroes the minimums don't.
E.g. consider the following program with the current validation code:
Tested program:
0: mov r0, #0x0
1: ldxdw r2, [r1 + 0]
2: jlt r2, #0x5, L8
3: jgt r2, #0x6, L8
4: jslt r2, #0x5, L8
5: jsgt r2, #0x6, L8
6: or r2, #0x2 ; tested instruction
7: mov r0, #0x1
8: exit
Pre-state:
r2: 5..6
Post-state:
r2: 7
After the tested instruction validator considers r2 to always equal 7,
however if 6 was loaded on step 1 it is possible for it to be 6:
0x6 & 0x2 == 0x6
Use the maximum of both minimums as a new unsigned minimum following the
idea that result of bitwise OR cannot be smaller than its operands. Add
test.
Fixes: 8021917293d0 ("bpf: add extra validation for input BPF program")
Cc: stable@dpdk.org
Reported-by: Claudia Cauli <claudiacauli@gmail.com>
Signed-off-by: Marat Khalili <marat.khalili@huawei.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
app/test/test_bpf_validate.c | 34 ++++++++++++++++++++++++++++++++++
lib/bpf/bpf_validate.c | 6 +++---
2 files changed, 37 insertions(+), 3 deletions(-)
diff --git a/app/test/test_bpf_validate.c b/app/test/test_bpf_validate.c
index 55a2f383bd23..dfcf49ccb936 100644
--- a/app/test/test_bpf_validate.c
+++ b/app/test/test_bpf_validate.c
@@ -1713,6 +1713,40 @@ test_alu64_neg_zero_last(void)
REGISTER_FAST_TEST(bpf_validate_alu64_neg_zero_last_autotest, NOHUGE_OK, ASAN_OK,
test_alu64_neg_zero_last);
+/* 64-bit bitwise OR between a positive scalar range and negative immediate. */
+static int
+test_alu64_or_k_negative(void)
+{
+ return verify_instruction((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (EBPF_ALU64 | BPF_OR | BPF_K),
+ .imm = -2,
+ },
+ .pre.dst = make_signed_domain(5, 6),
+ .post.dst = make_signed_domain(-2, -1),
+ });
+}
+
+REGISTER_FAST_TEST(bpf_validate_alu64_or_k_negative_autotest, NOHUGE_OK, ASAN_OK,
+ test_alu64_or_k_negative);
+
+/* 64-bit bitwise OR between a positive scalar range and positive immediate. */
+static int
+test_alu64_or_k_positive(void)
+{
+ return verify_instruction((struct verify_instruction_param){
+ .tested_instruction = {
+ .code = (EBPF_ALU64 | BPF_OR | BPF_K),
+ .imm = 2,
+ },
+ .pre.dst = make_signed_domain(5, 6),
+ .post.dst = make_signed_domain(5, 7),
+ });
+}
+
+REGISTER_FAST_TEST(bpf_validate_alu64_or_k_positive_autotest, NOHUGE_OK, ASAN_OK,
+ test_alu64_or_k_positive);
+
/* Jump if greater than immediate. */
static int
test_jmp64_jeq_k(void)
diff --git a/lib/bpf/bpf_validate.c b/lib/bpf/bpf_validate.c
index 4e4c0ddeb2b8..abb39cfd328d 100644
--- a/lib/bpf/bpf_validate.c
+++ b/lib/bpf/bpf_validate.c
@@ -875,7 +875,7 @@ eval_or(struct bpf_reg_val *rd, const struct bpf_reg_val *rs, size_t opsz,
rd->u.max |= rs->u.max;
} else {
rd->u.max = eval_uor_max(rd->u.max, rs->u.max, opsz);
- rd->u.min |= rs->u.min;
+ rd->u.min = RTE_MAX(rd->u.min, rs->u.min);
}
/* both operands are constants */
@@ -884,9 +884,9 @@ eval_or(struct bpf_reg_val *rd, const struct bpf_reg_val *rs, size_t opsz,
rd->s.max |= rs->s.max;
/* both operands are non-negative */
- } else if (rd->s.min >= 0 || rs->s.min >= 0) {
+ } else if (rd->s.min >= 0 && rs->s.min >= 0) {
rd->s.max = eval_uor_max(rd->s.max, rs->s.max, opsz);
- rd->s.min |= rs->s.min;
+ rd->s.min = RTE_MAX(rd->s.min, rs->s.min);
} else
eval_smax_bound(rd, msk);
}
--
2.43.0
^ permalink raw reply related
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