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= defined, so copying them here. # we need to pass the -march= 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() 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=-fPIC BUILD_IN_SOURCE 1 INSTALL_COMMAND "true") 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 $ -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()