(#18978) rdma-core: add new recipe

* rdma-core: new recipe

* rdma-core: add libnl dependency

* rdma-core: fix libnl dependency

* rdma-core: bump version to v48.0

* rdma-core: make some libraries optional

* rdma-core: fix license copying

* rdma-core: tidy package_info()

* rdma-core: ignore driver errors in test_package.cpp

* rdma-core: limit to Linux only

* rdma-core: bump to 49.0

recipes/rdma-core/all/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "49.0":
+    url: "https://github.com/linux-rdma/rdma-core/releases/download/v49.0/rdma-core-49.0.tar.gz"
+    sha256: "953546ad2b179f9ce68dc21eb1eb26003098ea1bf0f87a4baed45bcea134b2b4"

recipes/rdma-core/all/conanfile.py

@@ -0,0 +1,133 @@
+import os
+import re
+
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout, CMakeDeps
+from conan.tools.env import VirtualBuildEnv
+from conan.tools.files import get, copy, rmdir, load, save, replace_in_file
+from conan.tools.gnu import PkgConfigDeps
+
+required_conan_version = ">=1.53.0"
+
+class PackageConan(ConanFile):
+    name = "rdma-core"
+    description = ("RDMA core userspace libraries and daemons. "
+                   "Provides userspace components for the Linux Kernel's drivers/infiniband subsystem.")
+    license = ("GPL-2.0", "Linux-OpenIB", "BSD-2-Clause")
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/linux-rdma/rdma-core"
+    topics = ("linux-kernel", "rdma", "infiniband", "iwarp", "roce", "kernel-rdma-drivers",
+              "libefa", "libibmad", "libibnetdisc", "libibumad", "libibverbs", "libmana",
+              "libmlx4", "libmlx5", "librdmacm")
+
+    package_type = "shared-library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "build_libefa": [True, False],
+        "build_libibnetdisc": [True, False],
+        "build_libmana": [True, False],
+        "build_libmlx4": [True, False],
+        "build_libmlx5": [True, False],
+        "build_librdmacm": [True, False],
+    }
+    default_options = {
+        "build_libefa": True,
+        "build_libibnetdisc": True,
+        "build_libmana": True,
+        "build_libmlx4": True,
+        "build_libmlx5": False,
+        "build_librdmacm": False,
+    }
+
+    def configure(self):
+        self.settings.rm_safe("compiler.libcxx")
+        self.settings.rm_safe("compiler.cppstd")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def requirements(self):
+        self.requires("libnl/3.8.0")
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.requires("libudev/system")
+
+    def validate(self):
+        if self.settings.os not in ["Linux", "FreeBSD"]:
+            # libnl is only available on Linux
+            raise ConanInvalidConfiguration("rdma-core is only supported on Linux")
+
+    def build_requirements(self):
+        if not self.conf.get("tools.gnu:pkg_config", default=False, check_type=str):
+            self.tool_requires("pkgconf/2.1.0")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = VirtualBuildEnv(self)
+        tc.generate()
+        tc = CMakeToolchain(self)
+        # Shared libraries are built by default and even if ENABLE_STATIC is turned on,
+        # the static libraries still have dependencies on the shared libraries.
+        # tc.variables["ENABLE_STATIC"] = not self.options.shared
+        tc.variables["NO_PYVERBS"] = True
+        tc.variables["NO_MAN_PAGES"] = True
+        tc.generate()
+        deps = CMakeDeps(self)
+        deps.generate()
+        deps = PkgConfigDeps(self)
+        deps.generate()
+
+    def _patch_sources(self):
+        # Build only the libraries and disable everything else
+        allowed_subdirs = ["ccan", "kernel-boot", "kernel-headers", "libibmad", "libibnetdisc", "libibumad", "libibverbs",
+                           "librdmacm", "providers/efa", "providers/mana", "providers/mlx4", "providers/mlx5", "util"]
+        allowed_subdirs = [
+            subdir for subdir in allowed_subdirs
+            if self.options.get_safe(f"build_{subdir.replace('providers/', 'lib')}", True)
+        ]
+        cmakelists_path = os.path.join(self.source_folder, "CMakeLists.txt")
+        cmakelists_content = load(self, cmakelists_path)
+        patched_content = re.sub(r"add_subdirectory\((?!({})\)).+\)".format("|".join(allowed_subdirs)), r"", cmakelists_content)
+        save(self, cmakelists_path, patched_content)
+        # Adjust the pkg-config target for libnl
+        replace_in_file(self, cmakelists_path, "libnl-3.0 libnl-route-3.0", "libnl")
+
+    def build(self):
+        self._patch_sources()
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def package(self):
+        copy(self, "COPYING.*",
+             dst=os.path.join(self.package_folder, "licenses"),
+             src=self.source_folder)
+        cmake = CMake(self)
+        cmake.install()
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+        rmdir(self, os.path.join(self.package_folder, "share"))
+        rmdir(self, os.path.join(self.package_folder, "etc"))
+
+    def package_info(self):
+        def _add_component(name, requires, pthread=False):
+            if not self.options.get_safe(f"build_{name}", True):
+                return
+            component = self.cpp_info.components[name]
+            component.set_property("pkg_config_name", name)
+            component.libs = [name.replace("lib", "")]
+            component.requires = requires + ["libudev::libudev"]
+            if pthread and self.settings.os in ["Linux", "FreeBSD"]:
+                component.system_libs = ["pthread"]
+
+        _add_component("libefa", ["libibverbs"], pthread=True)
+        _add_component("libibmad", ["libibumad"])
+        _add_component("libibnetdisc", ["libibmad", "libibumad"])
+        _add_component("libibumad", [])
+        _add_component("libibverbs", ["libnl::nl", "libnl::nl-route"], pthread=True)
+        _add_component("libmana", ["libibverbs"], pthread=True)
+        _add_component("libmlx4", ["libibverbs"], pthread=True)
+        _add_component("libmlx5", ["libibverbs"], pthread=True)
+        _add_component("librdmacm", ["libibverbs", "libnl::nl", "libnl::nl-route"], pthread=True)
+

recipes/rdma-core/all/test_package/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_package)
+
+find_package(rdma-core REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE rdma-core::libibverbs)

recipes/rdma-core/all/test_package/conanfile.py

@@ -0,0 +1,26 @@
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout, CMake
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/rdma-core/all/test_package/test_package.cpp

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2004 Topspin Communications.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdio.h>
+
+#include <endian.h>
+
+#include <infiniband/verbs.h>
+
+int main(int argc, char *argv[])
+{
+	struct ibv_device **dev_list;
+	int num_devices, i;
+
+	dev_list = ibv_get_device_list(&num_devices);
+	if (!dev_list) {
+		perror("Failed to get IB devices list");
+		return 0;
+	}
+
+	printf("    %-16s\t   node GUID\n", "device");
+	printf("    %-16s\t----------------\n", "------");
+
+	for (i = 0; i < num_devices; ++i) {
+		printf("    %-16s\t%016llx\n",
+		       ibv_get_device_name(dev_list[i]),
+		       (unsigned long long) be64toh(ibv_get_device_guid(dev_list[i])));
+	}
+
+	ibv_free_device_list(dev_list);
+
+	return 0;
+}

recipes/rdma-core/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "49.0":
+    folder: all