# -*- autoconf -*-
-# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
[], [enable_Werror=no])
AC_CONFIG_COMMANDS_PRE(
[if test "X$enable_Werror" = Xyes; then
- CFLAGS="$CFLAGS -Werror"
+ OVS_CFLAGS="$OVS_CFLAGS -Werror"
fi])])
dnl OVS_CHECK_LINUX
AC_ARG_WITH([linux-source],
[AC_HELP_STRING([--with-linux-source=/path/to/linux-source],
[Specify the Linux kernel source directory
- (usually figured out automatically from build
- directory)])])
+ (usually figured out automatically from build
+ directory)])])
# Deprecated equivalents to --with-linux, --with-linux-source.
AC_ARG_WITH([l26])
# Make sure that it exists.
AC_MSG_CHECKING([for Linux build directory])
if test -d "$KBUILD"; then
- AC_MSG_RESULT([$KBUILD])
- AC_SUBST(KBUILD)
+ AC_MSG_RESULT([$KBUILD])
+ AC_SUBST(KBUILD)
else
- AC_MSG_RESULT([no])
- AC_ERROR([source dir $KBUILD doesn't exist])
+ AC_MSG_RESULT([no])
+ AC_ERROR([source dir $KBUILD doesn't exist])
fi
# Debian breaks kernel headers into "source" header and "build" headers.
AC_MSG_RESULT([$kversion])
if test "$version" -ge 3; then
- if test "$version" = 3 && test "$patchlevel" -le 11; then
+ if test "$version" = 3 && test "$patchlevel" -le 18; then
: # Linux 3.x
else
- AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.11.x is not supported])
+ AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.18.x is not supported (please refer to the FAQ for advice)])
fi
else
if test "$version" -le 1 || test "$patchlevel" -le 5 || test "$sublevel" -le 31; then
test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \
(test ! -e "$KBUILD"/include/linux/autoconf.h && \
test ! -e "$KBUILD"/include/generated/autoconf.h); then
- AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
+ AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
fi
OVS_CHECK_LINUX_COMPAT
fi
AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD")
])
+dnl OVS_CHECK_DPDK
+dnl
+dnl Configure DPDK source tree
+AC_DEFUN([OVS_CHECK_DPDK], [
+ AC_ARG_WITH([dpdk],
+ [AC_HELP_STRING([--with-dpdk=/path/to/dpdk],
+ [Specify the DPDK build directory])])
+
+ if test X"$with_dpdk" != X; then
+ RTE_SDK=$with_dpdk
+
+ DPDK_INCLUDE=$RTE_SDK/include
+ DPDK_LIB_DIR=$RTE_SDK/lib
+ DPDK_LIB=-lintel_dpdk
+
+ ovs_save_CFLAGS="$CFLAGS"
+ ovs_save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -L$DPDK_LIB_DIR"
+ CFLAGS="$CFLAGS -I$DPDK_INCLUDE"
+
+ # On some systems we have to add -ldl to link with dpdk
+ #
+ # This code, at first, tries to link without -ldl (""),
+ # then adds it and tries again.
+ # Before each attempt the search cache must be unset,
+ # otherwise autoconf will stick with the old result
+
+ found=false
+ save_LIBS=$LIBS
+ for extras in "" "-ldl"; do
+ LIBS="$DPDK_LIB $extras $save_LIBS"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([#include <rte_config.h>
+ #include <rte_eal.h>],
+ [int rte_argc; char ** rte_argv;
+ rte_eal_init(rte_argc, rte_argv);])],
+ [found=true])
+ if $found; then
+ break
+ fi
+ done
+ if $found; then :; else
+ AC_MSG_ERROR([cannot link with dpdk])
+ fi
+ CFLAGS="$ovs_save_CFLAGS"
+ LDFLAGS="$ovs_save_LDFLAGS"
+ OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR"
+ OVS_CFLAGS="$OVS_CFLAGS -I$DPDK_INCLUDE"
+
+ # DPDK 1.7 pmd drivers are not linked unless --whole-archive is used.
+ #
+ # This happens because the rest of the DPDK code doesn't use any symbol in
+ # the pmd driver objects, and the drivers register themselves using an
+ # __attribute__((constructor)) function.
+ #
+ # These options are specified inside a single -Wl directive to prevent
+ # autotools from reordering them.
+ DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$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 "$RTE_SDK")
+])
+
dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])
dnl
dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH.
[OVS_DEFINE([HAVE_CSUM_COPY_DBG])])
OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])
+ OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL])
+ OVS_GREP_IFELSE([$KSRC/include/linux/hash.h], [fast_hash_ops])
OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random])
+ OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy])
OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto])
OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])
+ OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry],
+ [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
+ OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats])
+
+ OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32])
OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
[OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
[OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash],
+ [OVS_DEFINE([HAVE_U16_RXHASH])])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
[OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(],
+ [OVS_DEFINE([HAVE_SKB_ZEROCOPY])])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [l4_rxhash])
OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool],
[OVS_DEFINE([HAVE_BOOL_TYPE])])
OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4])
OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
+ OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners])
+ OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset])
OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
+ OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_new_unicast])
OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
+ OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads])
+ OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [iptunnel_xmit.*net],
+ [OVS_DEFINE([HAVE_IPTUNNEL_XMIT_NET])])
+ OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
+ OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last])
+
+ OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])
OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD],
[OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])])
- OVS_GREP_IFELSE([$KSRC/include/linux/percpu.h], [this_cpu_ptr])
+ OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq])
OVS_GREP_IFELSE([$KSRC/include/linux/openvswitch.h], [openvswitch_handle_frame_hook],
[OVS_DEFINE([HAVE_RHEL_OVS_HOOK])])
+ OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_xmit_skb])
+ OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [bool xnet],
+ [OVS_DEFINE([HAVE_VXLAN_XMIT_SKB_XNET_ARG])])
+ OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port],
+ [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])
+ OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df:1],
+ [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])])
+ OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN],
+ [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])])
OVS_CHECK_LOG2_H
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl
- m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-], [_])])dnl
+ m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-=], [__])])dnl
AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name],
[ovs_save_CFLAGS="$CFLAGS"
dnl Include -Werror in the compiler options, because without -Werror
[for pthread_setname_np() variant],
[ovs_cv_pthread_setname_np],
[AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([#include <pthread.h>
+ [AC_LANG_PROGRAM([#include <pthread.h>
], [pthread_setname_np(pthread_self(), "name");])],
- [ovs_cv_pthread_setname_np=glibc],
+ [ovs_cv_pthread_setname_np=glibc],
[AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([#include <pthread.h>
+ [AC_LANG_PROGRAM([#include <pthread.h>
], [pthread_setname_np(pthread_self(), "%s", "name");])],
[ovs_cv_pthread_setname_np=netbsd],
- [ovs_cv_pthread_setname_np=none])])])
+ [ovs_cv_pthread_setname_np=none])])])
case $ovs_cv_pthread_setname_np in # (
glibc)
- AC_DEFINE(
- [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1],
- [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).])
- ;; # (
+ AC_DEFINE(
+ [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1],
+ [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).])
+ ;; # (
netbsd)
- AC_DEFINE(
- [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1],
- [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).])
- ;;
+ AC_DEFINE(
+ [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1],
+ [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).])
+ ;;
esac
fi])
+
+dnl OVS_CHECK_LINUX_HOST.
+dnl
+dnl Checks whether we're building for a Linux host, based on the presence of
+dnl the __linux__ preprocessor symbol, and sets up an Automake conditional
+dnl LINUX based on the result.
+AC_DEFUN([OVS_CHECK_LINUX_HOST],
+ [AC_CACHE_CHECK(
+ [whether __linux__ is defined],
+ [ovs_cv_linux],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])],
+ [ovs_cv_linux=true],
+ [ovs_cv_linux=false])])
+ AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])