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# Copyright (c) 2016 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
##############################################################################
# Check if we want to use the system DPDK
##############################################################################
option(VPP_USE_SYSTEM_DPDK "Use the system installation of DPDK." OFF)
if(VPP_USE_SYSTEM_DPDK)
find_package(PkgConfig REQUIRED)
pkg_check_modules(DPDK REQUIRED libdpdk)
message(WARNING "-- linking dpdk plugin against system libdpdk, version ${DPDK_VERSION}")
set(DPDK_LINK_FLAGS ${DPDK_LDFLAGS})
include_directories (${DPDK_INCLUDE_DIRS})
else()
##############################################################################
# Find lib and include files
##############################################################################
vpp_find_path(DPDK_INCLUDE_DIR PATH_SUFFIXES dpdk NAMES rte_config.h)
vpp_plugin_find_library(dpdk DPDK_LIB "libdpdk.a")
if (NOT DPDK_INCLUDE_DIR)
message(WARNING "-- DPDK headers not found - dpdk plugin disabled")
return()
endif()
if (NOT DPDK_LIB)
vpp_plugin_find_library(dpdk DPDK_SHLIB "libdpdk.so")
set(DPDK_IS_SHARED_LIB 1)
message(WARNING "-- linking dpdk plugin against DPDK shared libs")
endif()
##############################################################################
# Parse DPDK config and version header files
##############################################################################
file(STRINGS ${DPDK_INCLUDE_DIR}/rte_config.h rte_config)
file(STRINGS ${DPDK_INCLUDE_DIR}/rte_version.h rte_version)
file(STRINGS ${DPDK_INCLUDE_DIR}/rte_build_config.h rte_build_config)
foreach(l ${rte_config} ${rte_build_config} ${rte_version}})
if (l MATCHES "^#define[\t ]*RTE_")
STRING(REGEX REPLACE "^#define[\t ]*([A-Z1-9_]+)[\t ]*(.+)" "\\1;\\2" v "${l}")
list(GET v 0 name)
list(GET v 1 value)
set(DPDK_${name} ${value})
endif()
endforeach()
set(DPDK_VERSION
"${DPDK_RTE_VER_YEAR}.${DPDK_RTE_VER_MONTH}.${DPDK_RTE_VER_MINOR}")
##############################################################################
# verify headroom size
##############################################################################
if(NOT ${DPDK_RTE_PKTMBUF_HEADROOM} EQUAL ${PRE_DATA_SIZE})
message(
FATAL_ERROR
"DPDK RTE_PKTMBUF_HEADROOM (${DPDK_RTE_PKTMBUF_HEADROOM}) "
"must be equal to PRE_DATA_SIZE (${PRE_DATA_SIZE})"
)
endif()
##############################################################################
# static or dynamic linking
##############################################################################
unset(DPDK_LINK_LIBRARIES)
unset(DPDK_LINK_FLAGS)
message(STATUS "Found DPDK ${DPDK_VERSION} in ${DPDK_INCLUDE_DIR}")
include_directories (${DPDK_INCLUDE_DIR})
if(DPDK_IS_SHARED_LIB)
get_filename_component(DPDK_LIB_DIR ${DPDK_SHLIB} DIRECTORY)
string_append(DPDK_LINK_FLAGS "-L${DPDK_LIB_DIR}")
list(APPEND DPDK_LINK_LIBRARIES ${DPDK_SHLIB})
else()
get_filename_component(DPDK_LIB_DIR ${DPDK_LIB} DIRECTORY)
string_append(DPDK_LINK_FLAGS "-L${DPDK_LIB_DIR}")
string_append(DPDK_LINK_FLAGS "-Wl,--whole-archive,${DPDK_LIB},--no-whole-archive")
endif()
##############################################################################
# libnuma
##############################################################################
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
vpp_plugin_find_library(dpdk NUMA_LIB "numa")
list(APPEND DPDK_LINK_LIBRARIES ${NUMA_LIB})
endif()
##############################################################################
# Mellanox libraries
##############################################################################
if(DPDK_RTE_NET_MLX4 OR DPDK_RTE_NET_MLX5)
if (DPDK_RTE_IBVERBS_LINK_DLOPEN)
message(STATUS "DPDK depends on libmnl (Mellanox PMD requirement)")
vpp_plugin_find_library(dpdk MNL_LIB "mnl")
list(APPEND DPDK_LINK_LIBRARIES "${MNL_LIB}")
else()
message(WARNING "EXPERIMENTAL: DPDK plugin without dlopen mode")
vpp_plugin_find_library(dpdk IBVERBS_LIB "libibverbs.a")
vpp_plugin_find_library(dpdk MLX5_LIB "libmlx5.a")
vpp_plugin_find_library(dpdk MLX4_LIB "libmlx4.a")
string_append(DPDK_LINK_FLAGS "-Wl,--whole-archive,${IBVERBS_LIB},${MLX5_LIB},${MLX4_LIB} -Wl,--no-whole-archive,--exclude-libs,ALL")
endif()
endif()
endif()
##############################################################################
# DPDK plugin
##############################################################################
if(OPENSSL_FOUND)
include_directories(${OPENSSL_INCLUDE_DIR})
set(DPDK_CRYPTODEV_OP_SOURCE cryptodev/cryptodev_op_data_path.c)
set(DPDK_CRYPTODEV_SOURCE cryptodev/cryptodev.c)
if (${DPDK_VERSION} VERSION_GREATER_EQUAL "20.8.0")
set(DPDK_CRYPTODEV_RAW_SOURCE cryptodev/cryptodev_raw_data_path.c)
endif()
endif()
add_vpp_plugin(dpdk
SOURCES
buffer.c
main.c
device/cli.c
device/common.c
device/device.c
device/driver.c
device/flow.c
device/format.c
device/init.c
device/node.c
${DPDK_CRYPTODEV_OP_SOURCE}
${DPDK_CRYPTODEV_SOURCE}
${DPDK_CRYPTODEV_RAW_SOURCE}
MULTIARCH_SOURCES
buffer.c
device/device.c
device/node.c
INSTALL_HEADERS
device/dpdk.h
LINK_FLAGS
"${DPDK_LINK_FLAGS}"
LINK_LIBRARIES
${DPDK_LINK_LIBRARIES}
LINK_LIBRARIES
${OPENSSL_CRYPTO_LIBRARIES}
COMPONENT
vpp-plugin-dpdk
)
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