From: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> Separate DPDK macros to top-level file so that they can be reused by other implementations (like ODP-DPDK).
Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsoleni...@linaro.org> --- /** Email created from pull request 321 (lumag:dpdk-system-master) ** https://github.com/Linaro/odp/pull/321 ** Patch: https://github.com/Linaro/odp/pull/321.patch ** Base sha: 5329e5211c447b9b823149baf76112eedfeb07fb ** Merge commit sha: 280c62aa5d2ea89ff05e376a74d7c6bbd29f002f **/ m4/odp_dpdk.m4 | 49 +++++++++++++++++++++++++++++++++++ platform/linux-generic/m4/odp_dpdk.m4 | 35 +++++-------------------- 2 files changed, 56 insertions(+), 28 deletions(-) create mode 100644 m4/odp_dpdk.m4 diff --git a/m4/odp_dpdk.m4 b/m4/odp_dpdk.m4 new file mode 100644 index 000000000..636170a7f --- /dev/null +++ b/m4/odp_dpdk.m4 @@ -0,0 +1,49 @@ +# ODP_DPDK_PMDS(DPDK_DRIVER_PATH) +# ------------------------------- +# Build a list of DPDK PMD drivers in DPDK_PMDS variable +AC_DEFUN([ODP_DPDK_PMDS], [dnl +AS_VAR_SET([DPDK_PMDS], [-Wl,--whole-archive,]) +for filename in "$1"/librte_pmd_*.a; do +cur_driver=`basename "$filename" .a | sed -e 's/^lib//'` +# rte_pmd_nfp has external dependencies which break linking +if test "$cur_driver" = "rte_pmd_nfp"; then + echo "skip linking rte_pmd_nfp" +else + AS_VAR_APPEND([DPDK_PMDS], [-l$cur_driver,]) +fi +done +AS_VAR_APPEND([DPDK_PMDS], [--no-whole-archive]) +AC_SUBST([DPDK_PMDS]) +]) + +# ODP_DPDK_CHECK(CPPFLAGS, LDFLAGS, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND) +# ----------------------------------------------------------------------- +# Check for DPDK availability +AC_DEFUN([ODP_DPDK_CHECK], [dnl +########################################################################## +# Save and set temporary compilation flags +########################################################################## +OLD_LDFLAGS=$LDFLAGS +OLD_LIBS=$LIBS +OLD_CPPFLAGS=$CPPFLAGS +LDFLAGS="$2 $LDFLAGS" +CPPFLAGS="$1 $CPPFLAGS" + +dpdk_check_ok=yes + +AC_CHECK_HEADERS([rte_config.h], [], + [dpdk_check_ok=no]) + +AC_CHECK_LIB([dpdk], [rte_eal_init], [], + [dpdk_check_ok=no], [-ldl -lpthread -lnuma]) +AS_IF([test "x$dpdk_check_ok" != "xno"], + [m4_default([$3], [:])], + [m4_default([$4], [:])]) + +########################################################################## +# Restore old saved variables +########################################################################## +LDFLAGS=$OLD_LDFLAGS +LIBS=$OLD_LIBS +CPPFLAGS=$OLD_CPPFLAGS +]) diff --git a/platform/linux-generic/m4/odp_dpdk.m4 b/platform/linux-generic/m4/odp_dpdk.m4 index 1e8fa2de9..ba0fdc935 100644 --- a/platform/linux-generic/m4/odp_dpdk.m4 +++ b/platform/linux-generic/m4/odp_dpdk.m4 @@ -3,9 +3,10 @@ ########################################################################## pktio_dpdk_support=no AC_ARG_WITH([dpdk-path], -AS_HELP_STRING([--with-dpdk-path=DIR path to dpdk build directory]), +[AS_HELP_STRING([--with-dpdk-path=DIR], [path to dpdk build directory])], [DPDK_PATH="$withval" DPDK_CPPFLAGS="-msse4.2 -isystem $DPDK_PATH/include" + DPDK_LDFLAGS="-L$DPDK_PATH/lib" pktio_dpdk_support=yes],[]) ########################################################################## @@ -13,17 +14,11 @@ AS_HELP_STRING([--with-dpdk-path=DIR path to dpdk build directory]), ########################################################################## zero_copy=0 AC_ARG_ENABLE([dpdk-zero-copy], - [ --enable-dpdk-zero-copy enable experimental zero-copy DPDK pktio mode], + [AS_HELP_STRING([--enable-dpdk-zero-copy], [enable experimental zero-copy DPDK pktio mode])], [if test x$enableval = xyes; then zero_copy=1 fi]) -########################################################################## -# Save and set temporary compilation flags -########################################################################## -OLD_CPPFLAGS="$CPPFLAGS" -CPPFLAGS="$DPDK_CPPFLAGS $CPPFLAGS" - ########################################################################## # Check for DPDK availability # @@ -32,37 +27,21 @@ CPPFLAGS="$DPDK_CPPFLAGS $CPPFLAGS" ########################################################################## if test x$pktio_dpdk_support = xyes then - AC_CHECK_HEADERS([rte_config.h], [], - [AC_MSG_FAILURE(["can't find DPDK header"])]) + ODP_DPDK_CHECK([$DPDK_CPPFLAGS], [$DPDK_LDFLAGS], [], + [AC_MSG_FAILURE([can't find DPDK])]) - AS_VAR_SET([DPDK_PMDS], [-Wl,--whole-archive,]) - for filename in "$DPDK_PATH"/lib/librte_pmd_*.a; do - cur_driver=`basename "$filename" .a | sed -e 's/^lib//'` - # rte_pmd_nfp has external dependencies which break linking - if test "$cur_driver" = "rte_pmd_nfp"; then - echo "skip linking rte_pmd_nfp" - else - AS_VAR_APPEND([DPDK_PMDS], [-l$cur_driver,]) - fi - done - AS_VAR_APPEND([DPDK_PMDS], [--no-whole-archive]) + ODP_DPDK_PMDS([$DPDK_PATH/lib]) AC_DEFINE([ODP_PKTIO_DPDK], [1], [Define to 1 to enable DPDK packet I/O support]) AC_DEFINE_UNQUOTED([ODP_DPDK_ZERO_COPY], [$zero_copy], [Define to 1 to enable DPDK zero copy support]) - DPDK_LIBS="-L$DPDK_PATH/lib -ldpdk -lpthread -ldl -lpcap -lm -lnuma" + DPDK_LIBS="$DPDK_LDFLAGS -ldpdk -lpthread -ldl -lpcap -lm -lnuma" AC_SUBST([DPDK_CPPFLAGS]) AC_SUBST([DPDK_LIBS]) - AC_SUBST([DPDK_PMDS]) else pktio_dpdk_support=no fi -########################################################################## -# Restore old saved variables -########################################################################## -CPPFLAGS=$OLD_CPPFLAGS - AM_CONDITIONAL([PKTIO_DPDK], [test x$pktio_dpdk_support = xyes ])