[AC_HELP_STRING([--with-dpdk=/path/to/dpdk],
[Specify the DPDK build directory])])
- if test X"$with_dpdk" != X; then
- RTE_SDK=$with_dpdk
+ AC_MSG_CHECKING([whether dpdk datapath is enabled])
+ if test -z "$with_dpdk" || test "$with_dpdk" = no; then
+ AC_MSG_RESULT([no])
+ DPDKLIB_FOUND=false
+ else
+ AC_MSG_RESULT([yes])
+ case "$with_dpdk" in
+ yes)
+ DPDK_AUTO_DISCOVER="true"
+ DPDK_INCLUDE="/usr/local/include/dpdk -I/usr/include/dpdk"
+ ;;
+ *)
+ DPDK_AUTO_DISCOVER="false"
+ DPDK_INCLUDE="$with_dpdk/include"
+ # If 'with_dpdk' is passed install directory, point to headers
+ # installed in $DESTDIR/$prefix/include/dpdk
+ AC_CHECK_FILE([$DPDK_INCLUDE/rte_config.h], [],
+ [AC_CHECK_FILE([$DPDK_INCLUDE/dpdk/rte_config.h],
+ [DPDK_INCLUDE=$DPDK_INCLUDE/dpdk], [])])
+ DPDK_LIB_DIR="$with_dpdk/lib"
+ ;;
+ esac
- DPDK_INCLUDE=$RTE_SDK/include
- DPDK_LIB_DIR=$RTE_SDK/lib
DPDK_LIB="-ldpdk"
DPDK_EXTRA_LIB=""
- RTE_SDK_FULL=`readlink -f $RTE_SDK`
-
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([#include <$RTE_SDK_FULL/include/rte_config.h>
-#if !RTE_LIBRTE_VHOST_USER
-#error
-#endif], [])],
- [], [AC_DEFINE([VHOST_CUSE], [1], [DPDK vhost-cuse support enabled, vhost-user disabled.])
- DPDK_EXTRA_LIB="-lfuse"])
ovs_save_CFLAGS="$CFLAGS"
ovs_save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -L$DPDK_LIB_DIR"
CFLAGS="$CFLAGS -I$DPDK_INCLUDE"
+ if test "$DPDK_AUTO_DISCOVER" = "false"; then
+ LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}"
+ fi
+
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ #include <rte_config.h>
+#if !RTE_LIBRTE_VHOST_USER
+#error
+#endif
+ ], [])
+ ], [],
+ [AC_DEFINE([VHOST_CUSE], [1], [DPDK vhost-cuse support enabled, vhost-user disabled.])
+ DPDK_EXTRA_LIB="-lfuse"])
# On some systems we have to add -ldl to link with dpdk
#
# Before each attempt the search cache must be unset,
# otherwise autoconf will stick with the old result
- found=false
+ DPDKLIB_FOUND=false
save_LIBS=$LIBS
for extras in "" "-ldl"; do
LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB"
#include <rte_eal.h>],
[int rte_argc; char ** rte_argv;
rte_eal_init(rte_argc, rte_argv);])],
- [found=true])
- if $found; then
+ [DPDKLIB_FOUND=true])
+ if $DPDKLIB_FOUND; then
break
fi
done
- if $found; then :; else
- AC_MSG_ERROR([cannot link with dpdk])
+
+ # If linking unsuccessful
+ if test "$DPDKLIB_FOUND" = "false" ; then
+ if $DPDK_AUTO_DISCOVER; then
+ AC_MSG_ERROR([Could not find DPDK library in default search path, Use --with-dpdk to specify the DPDK library installed in non-standard location])
+ else
+ AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR])
+ fi
fi
CFLAGS="$ovs_save_CFLAGS"
LDFLAGS="$ovs_save_LDFLAGS"
- OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR"
+ if test "$DPDK_AUTO_DISCOVER" = "false"; then
+ OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR"
+ fi
OVS_CFLAGS="$OVS_CFLAGS -I$DPDK_INCLUDE"
OVS_ENABLE_OPTION([-mssse3])
DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive
AC_SUBST([DPDK_vswitchd_LDFLAGS])
AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.])
-
- else
- RTE_SDK=
fi
- AM_CONDITIONAL([DPDK_NETDEV], test -n "$RTE_SDK")
+ AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true)
])
dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])