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-rw-r--r--cmake/modules/BuildDPDK.cmake199
1 files changed, 199 insertions, 0 deletions
diff --git a/cmake/modules/BuildDPDK.cmake b/cmake/modules/BuildDPDK.cmake
new file mode 100644
index 000000000..f2e3d2186
--- /dev/null
+++ b/cmake/modules/BuildDPDK.cmake
@@ -0,0 +1,199 @@
+function(do_build_dpdk dpdk_dir)
+ # mk/machine/native/rte.vars.mk
+ # rte_cflags are extracted from mk/machine/${machine}/rte.vars.mk
+ # only 3 of them have -march=<arch> defined, so copying them here.
+ # we need to pass the -march=<arch> to ${cc} as some headers in dpdk
+ # require it to compile. for instance, dpdk/include/rte_memcpy.h.
+ if(CMAKE_SYSTEM_PROCESSOR MATCHES "i386")
+ set(arch "x86_64")
+ set(machine "default")
+ set(machine_tmpl "native")
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686")
+ set(arch "i686")
+ set(machine "default")
+ set(machine_tmpl "native")
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
+ set(arch "x86_64")
+ set(machine "default")
+ set(machine_tmpl "native")
+ set(rte_cflags "-march=core2")
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
+ set(arch "arm")
+ set(machine "armv7a")
+ set(machine_tmpl "armv7a")
+ set(rte_cflags "-march=armv7-a")
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
+ set(arch "arm64")
+ set(machine "armv8a")
+ set(machine_tmpl "armv8a")
+ set(rte_cflags "-march=armv8-a+crc")
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64")
+ set(arch "ppc_64")
+ set(machine "power8")
+ set(machine_tmpl "power8")
+ else()
+ message(FATAL_ERROR "not able to build DPDK support: "
+ "unknown arch \"${CMAKE_SYSTEM_PROCESSOR}\"")
+ endif()
+ set(dpdk_rte_CFLAGS "${rte_cflags}" CACHE INTERNAL "")
+ if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+ set(execenv "linux")
+ elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
+ set(execenv "freebsd")
+ else()
+ message(FATAL_ERROR "not able to build DPDK support: "
+ "unsupported OS \"${CMAKE_SYSTEM_NAME}\"")
+ endif()
+
+ if(CMAKE_C_COMPILER_ID STREQUAL GNU)
+ set(toolchain "gcc")
+ elseif(CMAKE_C_COMPILER_ID STREQUAL Clang)
+ set(toolchain "clang")
+ elseif(CMAKE_C_COMPILER_ID STREQUAL Intel)
+ set(toolchain "icc")
+ else()
+ message(FATAL_ERROR "not able to build DPDK support: "
+ "unknown compiler \"${CMAKE_C_COMPILER_ID}\"")
+ endif()
+
+ set(target "${arch}-${machine_tmpl}-${execenv}-${toolchain}")
+
+ include(FindMake)
+ find_make("MAKE_EXECUTABLE" "make_cmd")
+ execute_process(
+ COMMAND ${MAKE_EXECUTABLE} showconfigs
+ WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src/spdk/dpdk
+ OUTPUT_VARIABLE supported_targets
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ string(REPLACE "\n" ";" supported_targets "${supported_targets}")
+ list(FIND supported_targets ${target} found)
+ if(found EQUAL -1)
+ message(FATAL_ERROR "not able to build DPDK support: "
+ "unsupported target. "
+ "\"${target}\" not listed in ${supported_targets}")
+ endif()
+
+ if(Seastar_DPDK AND WITH_SPDK)
+ message(FATAL_ERROR "not able to build DPDK with "
+ "both Seastar_DPDK and WITH_SPDK enabled")
+ elseif(Seastar_DPDK)
+ set(dpdk_source_dir ${CMAKE_SOURCE_DIR}/src/seastar/dpdk)
+ else() # WITH_SPDK or WITH_DPDK is enabled
+ set(dpdk_source_dir ${CMAKE_SOURCE_DIR}/src/spdk/dpdk)
+ endif()
+
+ set(extra_cflags "-fPIC")
+ include(CheckCCompilerFlag)
+ check_c_compiler_flag("-Wno-unused-but-set-variable"
+ HAVE_UNUSED_BUT_SET_VARIABLE)
+ if(HAVE_UNUSED_BUT_SET_VARIABLE)
+ string(APPEND extra_cflags " -Wno-unused-but-set-variable")
+ endif()
+
+ include(ExternalProject)
+ ExternalProject_Add(dpdk-ext
+ SOURCE_DIR ${dpdk_source_dir}
+ CONFIGURE_COMMAND ${make_cmd} config O=${dpdk_dir} T=${target}
+ BUILD_COMMAND ${make_cmd} O=${dpdk_dir} CC=${CMAKE_C_COMPILER} EXTRA_CFLAGS=${extra_cflags} RTE_DEVEL_BUILD=n
+ BUILD_IN_SOURCE 1
+ INSTALL_COMMAND ""
+ LOG_CONFIGURE ON
+ LOG_BUILD ON
+ LOG_MERGED_STDOUTERR ON
+ LOG_OUTPUT_ON_FAILURE ON)
+ if(NUMA_FOUND)
+ set(numa "y")
+ else()
+ set(numa "n")
+ endif()
+ ExternalProject_Add_Step(dpdk-ext patch-config
+ COMMAND ${CMAKE_MODULE_PATH}/patch-dpdk-conf.sh ${dpdk_dir} ${machine} ${arch} ${numa}
+ DEPENDEES configure
+ DEPENDERS build)
+ # easier to adjust the config
+ ExternalProject_Add_StepTargets(dpdk-ext configure patch-config build)
+endfunction()
+
+function(do_export_dpdk dpdk_dir)
+ set(DPDK_INCLUDE_DIR ${dpdk_dir}/include)
+ # create the directory so cmake won't complain when looking at the imported
+ # target
+ file(MAKE_DIRECTORY ${DPDK_INCLUDE_DIR})
+
+ if(NOT TARGET dpdk::cflags)
+ add_library(dpdk::cflags INTERFACE IMPORTED)
+ if (dpdk_rte_CFLAGS)
+ set_target_properties(dpdk::cflags PROPERTIES
+ INTERFACE_COMPILE_OPTIONS "${dpdk_rte_CFLAGS}")
+ endif()
+ endif()
+
+ list(APPEND dpdk_components
+ bus_pci
+ eal
+ kvargs
+ mbuf
+ mempool
+ mempool_ring
+ pci
+ ring
+ telemetry)
+ if(Seastar_DPDK)
+ list(APPEND dpdk_components
+ bus_vdev
+ cfgfile
+ hash
+ net
+ pmd_bnxt
+ pmd_cxgbe
+ pmd_e1000
+ pmd_ena
+ pmd_enic
+ pmd_i40e
+ pmd_ixgbe
+ pmd_nfp
+ pmd_qede
+ pmd_ring
+ pmd_sfc_efx
+ timer)
+ endif()
+
+ foreach(c ${dpdk_components})
+ add_library(dpdk::${c} STATIC IMPORTED)
+ add_dependencies(dpdk::${c} dpdk-ext)
+ set(dpdk_${c}_LIBRARY
+ "${dpdk_dir}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}rte_${c}${CMAKE_STATIC_LIBRARY_SUFFIX}")
+ set_target_properties(dpdk::${c} PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES ${DPDK_INCLUDE_DIR}
+ INTERFACE_LINK_LIBRARIES dpdk::cflags
+ IMPORTED_LOCATION "${dpdk_${c}_LIBRARY}")
+ list(APPEND DPDK_LIBRARIES dpdk::${c})
+ list(APPEND DPDK_ARCHIVES "${dpdk_${c}_LIBRARY}")
+ endforeach()
+
+ if(NUMA_FOUND)
+ set(dpdk_numa " -Wl,-lnuma")
+ endif()
+ add_library(dpdk::dpdk INTERFACE IMPORTED)
+ add_dependencies(dpdk::dpdk
+ ${DPDK_LIBRARIES})
+ # workaround for https://gitlab.kitware.com/cmake/cmake/issues/16947
+ set_target_properties(dpdk::dpdk PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES ${DPDK_INCLUDE_DIR}
+ INTERFACE_LINK_LIBRARIES
+ "-Wl,--whole-archive $<JOIN:${DPDK_ARCHIVES}, > -Wl,--no-whole-archive ${dpdk_numa} -Wl,-lpthread,-ldl")
+ if(dpdk_rte_CFLAGS)
+ set_target_properties(dpdk::dpdk PROPERTIES
+ INTERFACE_COMPILE_OPTIONS "${dpdk_rte_CFLAGS}")
+ endif()
+endfunction()
+
+function(build_dpdk dpdk_dir)
+ find_package(NUMA QUIET)
+ if(NOT TARGET dpdk-ext)
+ do_build_dpdk(${dpdk_dir})
+ endif()
+ if(NOT TARGET dpdk::dpdk)
+ do_export_dpdk(${dpdk_dir})
+ endif()
+endfunction()