MoonGen is a fully scriptable high-speed packet generator built on DPDK and LuaJIT. It can saturate a 10 Gbit/s connection with 64 byte packets on a single CPU core while executing user-provided Lua scripts for each packet. Multi-core support allows for even higher rates. It also features precise and accurate timestamping and rate control.
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A notice for anyone working on dpdk-19.05 branch and with Mellanox NIC #287
Refer to the guide of DPDK 19.05, mlx5 driver has a dependency on libmnl library, and it will not be embedded in rte_pmd_mlx5.a static library even if option CONFIG_RTE_IBVERBS_LINK_STATIC is set. In order to compile moongen or libmoon with --mlx5 option on dpdk-19.05 branch, it's neccessary to install libmnl mannually (maybe with the help of the system package manager) and link it to libmoon.
My workaround is simply adding a new line in the cmake config of libmoon to link mnl similar with ibverbs.
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,6 +43,7 @@ SET(DPDK_LIBS
#Add Mellanox libraries if options are specified
if(USE_MLX5 OR USE_MLX4)
SET(DPDK_LIBS ${DPDK_LIBS} ibverbs)
+ SET(DPDK_LIBS ${DPDK_LIBS} mnl)
endif()
Dependency on libmnl is removed on newer DPDK release, thus it's expected to be a temporary issue. As DPDK 19.05 is not a LTS version and is still not supported by the main branch of libmoon, I think a issue may be more suitable then a pull request and hope it help others meeting the same problems.
Refer to the guide of DPDK 19.05, mlx5 driver has a dependency on
libmnllibrary, and it will not be embedded inrte_pmd_mlx5.astatic library even if optionCONFIG_RTE_IBVERBS_LINK_STATICis set. In order to compilemoongenorlibmoonwith--mlx5option ondpdk-19.05branch, it's neccessary to installlibmnlmannually (maybe with the help of the system package manager) and link it tolibmoon.My workaround is simply adding a new line in the cmake config of
libmoonto linkmnlsimilar withibverbs.Dependency on
libmnlis removed on newer DPDK release, thus it's expected to be a temporary issue. As DPDK 19.05 is not a LTS version and is still not supported by the main branch oflibmoon, I think a issue may be more suitable then a pull request and hope it help others meeting the same problems.