]> git.proxmox.com Git - mirror_ovs.git/blame - acinclude.m4
projects / mirror_ovs.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
netdev-offload-dpdk: Support tnl/push using vxlan encap attribute.
[mirror_ovs.git] / acinclude.m4
CommitLineData
064af421
BP		 1# -*- autoconf -*-
2
0cdd5b13 3# Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2019 Nicira, Inc.
064af421 4#
a14bc59f
BP		 5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at:
064af421 8#
a14bc59f
BP		 9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
064af421 16
a64e37a1
BP		 17dnl OVS_ENABLE_WERROR
18AC_DEFUN([OVS_ENABLE_WERROR],
19 [AC_ARG_ENABLE(
20 [Werror],
21 [AC_HELP_STRING([--enable-Werror], [Add -Werror to CFLAGS])],
22 [], [enable_Werror=no])
23 AC_CONFIG_COMMANDS_PRE(
24 [if test "X$enable_Werror" = Xyes; then
95626395 25 OVS_CFLAGS="$OVS_CFLAGS -Werror"
308bf988
BP		 26 fi])
27
28 # Unless --enable-Werror is specified, report but do not fail the build
29 # for errors reported by flake8.
30 if test "X$enable_Werror" = Xyes; then
31 FLAKE8_WERROR=
32 else
33 FLAKE8_WERROR=-
34 fi
df265086
BP		 35 AC_SUBST([FLAKE8_WERROR])
36
37 # If --enable-Werror is specified, fail the build on sparse warnings.
38 if test "X$enable_Werror" = Xyes; then
39 SPARSE_WERROR=-Wsparse-error
40 else
41 SPARSE_WERROR=
42 fi
43 AC_SUBST([SPARSE_WERROR])])
a64e37a1 44
e3438006 45dnl OVS_CHECK_LINUX
064af421 46dnl
997d327d 47dnl Configure linux kernel source tree
e3438006 48AC_DEFUN([OVS_CHECK_LINUX], [
8a2d6596
BP		 49 AC_ARG_WITH([linux],
50 [AC_HELP_STRING([--with-linux=/path/to/linux],
51 [Specify the Linux kernel build directory])])
52 AC_ARG_WITH([linux-source],
53 [AC_HELP_STRING([--with-linux-source=/path/to/linux-source],
54 [Specify the Linux kernel source directory
a0903134
YT		 55 (usually figured out automatically from build
56 directory)])])
8a2d6596
BP		 57
58 # Deprecated equivalents to --with-linux, --with-linux-source.
59 AC_ARG_WITH([l26])
60 AC_ARG_WITH([l26-source])
61
62 if test X"$with_linux" != X; then
63 KBUILD=$with_linux
64 elif test X"$with_l26" != X; then
65 KBUILD=$with_l26
66 AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead])
67 else
68 KBUILD=
69 fi
70
71 if test X"$KBUILD" != X; then
72 if test X"$with_linux_source" != X; then
73 KSRC=$with_linux_source
74 elif test X"$with_l26_source" != X; then
75 KSRC=$with_l26_source
76 AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead])
0a89c170
BP		 77 else
78 KSRC=
8a2d6596
BP		 79 fi
80 elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then
81 AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory])
82 fi
83
e3438006
BP		 84 if test -n "$KBUILD"; then
85 KBUILD=`eval echo "$KBUILD"`
86 case $KBUILD in
0b6d72fc 87 /*) ;;
e3438006 88 *) KBUILD=`pwd`/$KBUILD ;;
0b6d72fc 89 esac
064af421 90
7c9e113b
BP		 91 # The build directory is what the user provided.
92 # Make sure that it exists.
8a2d6596 93 AC_MSG_CHECKING([for Linux build directory])
e3438006 94 if test -d "$KBUILD"; then
a0903134
YT		 95 AC_MSG_RESULT([$KBUILD])
96 AC_SUBST(KBUILD)
064af421 97 else
a0903134
YT		 98 AC_MSG_RESULT([no])
99 AC_ERROR([source dir $KBUILD doesn't exist])
064af421
BP		 100 fi
101
7c9e113b 102 # Debian breaks kernel headers into "source" header and "build" headers.
e3438006 103 # We want the source headers, but $KBUILD gives us the "build" headers.
7c9e113b 104 # Use heuristics to find the source headers.
8a2d6596 105 AC_MSG_CHECKING([for Linux source directory])
e3438006
BP		 106 if test -n "$KSRC"; then
107 KSRC=`eval echo "$KSRC"`
108 case $KSRC in
f5fb5de6 109 /*) ;;
e3438006 110 *) KSRC=`pwd`/$KSRC ;;
b57f675c 111 esac
e3438006 112 if test ! -e $KSRC/include/linux/kernel.h; then
53319f95 113 AC_MSG_ERROR([$KSRC is not a kernel source directory])
f5fb5de6
BP		 114 fi
115 else
e3438006
BP		 116 KSRC=$KBUILD
117 if test ! -e $KSRC/include/linux/kernel.h; then
fe0731b1
BP		 118 # Debian kernel build Makefiles tend to include a line of the form:
119 # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486
120 # First try to extract the source directory from this line.
121 KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile`
122 if test ! -e "$KSRC"/include/linux/kernel.h; then
123 # Didn't work. Fall back to name-based heuristics that used to work.
124 case `echo "$KBUILD" | sed 's,/*$,,'` in # (
125 */build)
126 KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'`
127 ;; # (
128 *)
129 KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'`
130 ;;
131 esac
132 fi
f5fb5de6 133 fi
fe0731b1 134 if test ! -e "$KSRC"/include/linux/kernel.h; then
8a2d6596 135 AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)])
7c9e113b
BP		 136 fi
137 fi
e3438006 138 AC_MSG_RESULT([$KSRC])
7c9e113b
BP		 139
140 AC_MSG_CHECKING([for kernel version])
71fe9970 141 version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"`
e3438006
BP		 142 patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"`
143 sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"`
71fe9970 144 if test X"$version" = X || test X"$patchlevel" = X; then
7c9e113b 145 AC_ERROR([cannot determine kernel version])
71fe9970
BP		 146 elif test X"$sublevel" = X; then
147 kversion=$version.$patchlevel
148 else
149 kversion=$version.$patchlevel.$sublevel
7c9e113b 150 fi
71fe9970
BP		 151 AC_MSG_RESULT([$kversion])
152
2adada0e 153 if test "$version" -ge 5; then
ea58abe5 154 if test "$version" = 5 && test "$patchlevel" -le 5; then
2adada0e 155 : # Linux 5.x
d76aabea 156 else
ea58abe5 157 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 5.5.x is not supported (please refer to the FAQ for advice)])
d76aabea 158 fi
2adada0e
YS		 159 elif test "$version" = 4; then
160 : # Linux 4.x
8063e095 161 elif test "$version" = 3 && test "$patchlevel" -ge 10; then
3afcde43 162 : # Linux 3.x
71fe9970 163 else
8063e095 164 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required])
064af421 165 fi
2520f452
IY		 166 if (test ! -e "$KBUILD"/include/linux/version.h && \
167 test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \
e3438006
BP		 168 (test ! -e "$KBUILD"/include/linux/autoconf.h && \
169 test ! -e "$KBUILD"/include/generated/autoconf.h); then
a0903134 170 AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
064af421 171 fi
e3438006 172 OVS_CHECK_LINUX_COMPAT
064af421 173 fi
e3438006 174 AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD")
064af421
BP		 175])
176
292d5bd9
VB		 177dnl OVS_CHECK_LINUX_NETLINK
178dnl
179dnl Configure Linux netlink compat.
180AC_DEFUN([OVS_CHECK_LINUX_NETLINK], [
181 AC_COMPILE_IFELSE([
182 AC_LANG_PROGRAM([#include <linux/netlink.h>], [
183 struct nla_bitfield32 x = { 0 };
184 ])],
185 [AC_DEFINE([HAVE_NLA_BITFIELD32], [1],
186 [Define to 1 if struct nla_bitfield32 is available.])])
187])
188
1dc0da67
PB		 189dnl OVS_CHECK_LINUX_TC
190dnl
191dnl Configure Linux tc compat.
192AC_DEFUN([OVS_CHECK_LINUX_TC], [
193 AC_COMPILE_IFELSE([
194 AC_LANG_PROGRAM([#include <linux/pkt_cls.h>], [
292d5bd9 195 int x = TCA_ACT_FLAGS;
1dc0da67 196 ])],
292d5bd9
VB		 197 [AC_DEFINE([HAVE_TCA_ACT_FLAGS], [1],
198 [Define to 1 if TCA_ACT_FLAGS is available.])])
1dc0da67 199
c0a1df2e
RD		 200 AC_CHECK_MEMBERS([struct tcf_t.firstuse], [], [], [#include <linux/pkt_cls.h>])
201
1dc0da67
PB		 202 AC_COMPILE_IFELSE([
203 AC_LANG_PROGRAM([#include <linux/tc_act/tc_vlan.h>], [
204 int x = TCA_VLAN_PUSH_VLAN_PRIORITY;
205 ])],
206 [AC_DEFINE([HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY], [1],
dd83253e 207 [Define to 1 if TCA_VLAN_PUSH_VLAN_PRIORITY is available.])])
1dc0da67 208
abef7959
JH		 209 AC_COMPILE_IFELSE([
210 AC_LANG_PROGRAM([#include <linux/tc_act/tc_mpls.h>], [
211 int x = TCA_MPLS_TTL;
212 ])],
213 [AC_DEFINE([HAVE_TCA_MPLS_TTL], [1],
214 [Define to 1 if HAVE_TCA_MPLS_TTL is available.])])
215
1dc0da67
PB		 216 AC_COMPILE_IFELSE([
217 AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [
4b12e454 218 int x = TCA_TUNNEL_KEY_ENC_TTL;
1dc0da67 219 ])],
4b12e454
OG		 220 [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_TTL], [1],
221 [Define to 1 if TCA_TUNNEL_KEY_ENC_TTL is available.])])
e5b1657e
PB		 222
223 AC_COMPILE_IFELSE([
224 AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [
225 int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP;
226 ])],
227 [AC_DEFINE([HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP], [1],
dd83253e 228 [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is available.])])
7808b2b9
JH		 229
230 AC_COMPILE_IFELSE([
231 AC_LANG_PROGRAM([#include <linux/tc_act/tc_skbedit.h>], [
232 int x = TCA_SKBEDIT_FLAGS;
233 ])],
234 [AC_DEFINE([HAVE_TCA_SKBEDIT_FLAGS], [1],
235 [Define to 1 if TCA_SKBEDIT_FLAGS is available.])])
1dc0da67
PB		 236])
237
8c7130da
AC		 238dnl OVS_CHECK_LINUX_SCTP_CT
239dnl
240dnl Checks for kernels which need additional SCTP state
241AC_DEFUN([OVS_CHECK_LINUX_SCTP_CT], [
242 AC_COMPILE_IFELSE([
243 AC_LANG_PROGRAM([#include <linux/netfilter/nfnetlink.h>
244#include <linux/netfilter/nfnetlink_conntrack.h>
245#include <linux/netfilter/nf_conntrack_common.h>
246#include <linux/netfilter/nf_conntrack_sctp.h>], [
247 int x = SCTP_CONNTRACK_HEARTBEAT_SENT;
248 ])],
249 [AC_DEFINE([HAVE_SCTP_CONNTRACK_HEARTBEATS], [1],
250 [Define to 1 if SCTP_CONNTRACK_HEARTBEAT_SENT is available.])])
251])
252
f0d1ead8
IM		 253dnl OVS_FIND_DEPENDENCY(FUNCTION, SEARCH_LIBS, NAME_TO_PRINT)
254dnl
255dnl Check for a function in a library list.
256AC_DEFUN([OVS_FIND_DEPENDENCY], [
257 AC_SEARCH_LIBS([$1], [$2], [], [
258 AC_MSG_ERROR([unable to find $3, install the dependency package])
259 ])
260])
261
0de1b425
WT		 262dnl OVS_CHECK_LINUX_AF_XDP
263dnl
264dnl Check both Linux kernel AF_XDP and libbpf support
265AC_DEFUN([OVS_CHECK_LINUX_AF_XDP], [
266 AC_ARG_ENABLE([afxdp],
267 [AC_HELP_STRING([--enable-afxdp], [Enable AF-XDP support])],
268 [], [enable_afxdp=no])
269 AC_MSG_CHECKING([whether AF_XDP is enabled])
270 if test "$enable_afxdp" != yes; then
271 AC_MSG_RESULT([no])
272 AF_XDP_ENABLE=false
273 else
274 AC_MSG_RESULT([yes])
275 AF_XDP_ENABLE=true
276
277 AC_CHECK_HEADER([bpf/libbpf.h], [],
278 [AC_MSG_ERROR([unable to find bpf/libbpf.h for AF_XDP support])])
279
280 AC_CHECK_HEADER([linux/if_xdp.h], [],
281 [AC_MSG_ERROR([unable to find linux/if_xdp.h for AF_XDP support])])
282
283 AC_CHECK_HEADER([bpf/xsk.h], [],
284 [AC_MSG_ERROR([unable to find bpf/xsk.h for AF_XDP support])])
285
286 AC_CHECK_FUNCS([pthread_spin_lock], [],
287 [AC_MSG_ERROR([unable to find pthread_spin_lock for AF_XDP support])])
288
e8568993
YHW		 289 OVS_FIND_DEPENDENCY([numa_alloc_onnode], [numa], [libnuma])
290
0de1b425
WT		 291 AC_DEFINE([HAVE_AF_XDP], [1],
292 [Define to 1 if AF_XDP support is available and enabled.])
293 LIBBPF_LDADD=" -lbpf -lelf"
294 AC_SUBST([LIBBPF_LDADD])
e50547b5
WT		 295
296 AC_CHECK_DECL([xsk_ring_prod__needs_wakeup], [
297 AC_DEFINE([HAVE_XDP_NEED_WAKEUP], [1],
298 [XDP need wakeup support detected in xsk.h.])
299 ], [], [[#include <bpf/xsk.h>]])
0de1b425
WT		 300 fi
301 AM_CONDITIONAL([HAVE_AF_XDP], test "$AF_XDP_ENABLE" = true)
302])
303
8a9562d2
PS		 304dnl OVS_CHECK_DPDK
305dnl
306dnl Configure DPDK source tree
307AC_DEFUN([OVS_CHECK_DPDK], [
308 AC_ARG_WITH([dpdk],
309 [AC_HELP_STRING([--with-dpdk=/path/to/dpdk],
4c16ee48
MV		 310 [Specify the DPDK build directory])],
311 [have_dpdk=true])
8a9562d2 312
49df3c0f 313 AC_MSG_CHECKING([whether dpdk is enabled])
4c16ee48 314 if test "$have_dpdk" != true || test "$with_dpdk" = no; then
40b5ea86
BB		 315 AC_MSG_RESULT([no])
316 DPDKLIB_FOUND=false
317 else
318 AC_MSG_RESULT([yes])
319 case "$with_dpdk" in
320 yes)
321 DPDK_AUTO_DISCOVER="true"
5b5aa2d8
CE		 322 PKG_CHECK_MODULES_STATIC([DPDK], [libdpdk], [
323 DPDK_INCLUDE="$DPDK_CFLAGS"
324 DPDK_LIB="$DPDK_LIBS"], [
325 DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"
326 DPDK_LIB="-ldpdk"])
40b5ea86
BB		 327 ;;
328 *)
329 DPDK_AUTO_DISCOVER="false"
96195c09 330 DPDK_INCLUDE_PATH="$with_dpdk/include"
40b5ea86
BB		 331 # If 'with_dpdk' is passed install directory, point to headers
332 # installed in $DESTDIR/$prefix/include/dpdk
96195c09
CE		 333 if test -e "$DPDK_INCLUDE_PATH/rte_config.h"; then
334 DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH"
335 elif test -e "$DPDK_INCLUDE_PATH/dpdk/rte_config.h"; then
336 DPDK_INCLUDE="-I$DPDK_INCLUDE_PATH/dpdk"
214ac6d4 337 fi
40b5ea86 338 DPDK_LIB_DIR="$with_dpdk/lib"
5b5aa2d8 339 DPDK_LIB="-ldpdk"
40b5ea86
BB		 340 ;;
341 esac
8a9562d2 342
95626395
TG		 343 ovs_save_CFLAGS="$CFLAGS"
344 ovs_save_LDFLAGS="$LDFLAGS"
96195c09 345 CFLAGS="$CFLAGS $DPDK_INCLUDE"
40b5ea86
BB		 346 if test "$DPDK_AUTO_DISCOVER" = "false"; then
347 LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}"
348 fi
349
865cee2b
IM		 350 AC_CHECK_HEADERS([rte_config.h], [], [
351 AC_MSG_ERROR([unable to find rte_config.h in $with_dpdk])
352 ], [AC_INCLUDES_DEFAULT])
353
f0d1ead8
IM		 354 AC_CHECK_DECLS([RTE_LIBRTE_VHOST_NUMA, RTE_EAL_NUMA_AWARE_HUGEPAGES], [
355 OVS_FIND_DEPENDENCY([get_mempolicy], [numa], [libnuma])
356 ], [], [[#include <rte_config.h>]])
4b88d678 357
976c452a
CL		 358 AC_CHECK_DECL([RTE_LIBRTE_PMD_PCAP], [
359 OVS_FIND_DEPENDENCY([pcap_dump_close], [pcap], [libpcap])
360 ], [], [[#include <rte_config.h>]])
361
5bb068a7
CL		 362 AC_CHECK_DECL([RTE_LIBRTE_PMD_AF_XDP], [
363 LIBBPF_LDADD="-lbpf"
364 ], [], [[#include <rte_config.h>]])
365
f0d1ead8
IM		 366 AC_CHECK_DECL([RTE_LIBRTE_VHOST_NUMA], [
367 AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])
368 ], [], [[#include <rte_config.h>]])
fc3b425f 369
f0d1ead8
IM		 370 AC_CHECK_DECL([RTE_LIBRTE_MLX5_PMD], [dnl found
371 OVS_FIND_DEPENDENCY([mnl_attr_put], [mnl], [libmnl])
b926f577 372 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 373 OVS_FIND_DEPENDENCY([mlx5dv_create_wq], [mlx5], [libmlx5])
374 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
375 ], [[#include <rte_config.h>]])
376 ], [], [[#include <rte_config.h>]])
84844e3f 377
f0d1ead8 378 AC_CHECK_DECL([RTE_LIBRTE_MLX4_PMD], [dnl found
b926f577 379 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 380 OVS_FIND_DEPENDENCY([mlx4dv_init_obj], [mlx4], [libmlx4])
381 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
382 ], [[#include <rte_config.h>]])
383 ], [], [[#include <rte_config.h>]])
939bad9a 384
e2f37511
IM		 385 # DPDK uses dlopen to load plugins.
386 OVS_FIND_DEPENDENCY([dlopen], [dl], [libdl])
387
388 AC_MSG_CHECKING([whether linking with dpdk works])
389 LIBS="$DPDK_LIB $LIBS"
390 AC_LINK_IFELSE(
391 [AC_LANG_PROGRAM([#include <rte_config.h>
392 #include <rte_eal.h>],
393 [int rte_argc; char ** rte_argv;
394 rte_eal_init(rte_argc, rte_argv);])],
395 [AC_MSG_RESULT([yes])
396 DPDKLIB_FOUND=true],
397 [AC_MSG_RESULT([no])
398 if test "$DPDK_AUTO_DISCOVER" = "true"; then
399 AC_MSG_ERROR(m4_normalize([
400 Could not find DPDK library in default search path, Use --with-dpdk
401 to specify the DPDK library installed in non-standard location]))
402 else
403 AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR])
404 fi
405 ])
c1223b11 406
95626395
TG		 407 CFLAGS="$ovs_save_CFLAGS"
408 LDFLAGS="$ovs_save_LDFLAGS"
40b5ea86
BB		 409 if test "$DPDK_AUTO_DISCOVER" = "false"; then
410 OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR"
411 fi
96195c09 412 OVS_CFLAGS="$OVS_CFLAGS $DPDK_INCLUDE"
ab2a3154 413 OVS_ENABLE_OPTION([-mssse3])
8a9562d2 414
3c94676c 415 # DPDK pmd drivers are not linked unless --whole-archive is used.
d7310583
DDP		 416 #
417 # This happens because the rest of the DPDK code doesn't use any symbol in
418 # the pmd driver objects, and the drivers register themselves using an
419 # __attribute__((constructor)) function.
420 #
421 # These options are specified inside a single -Wl directive to prevent
422 # autotools from reordering them.
5b5aa2d8
CE		 423 #
424 # OTOH newer versions of dpdk pkg-config (generated with Meson)
425 # will already have flagged just the right set of libs with
426 # --whole-archive - in those cases do not wrap it once more.
427 case "$DPDK_LIB" in
428 *whole-archive*) DPDK_vswitchd_LDFLAGS=$DPDK_LIB;;
429 *) DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive
430 esac
9475dfeb 431 AC_SUBST([DPDK_vswitchd_LDFLAGS])
8a9562d2 432 AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.])
8a9562d2
PS		 433 fi
434
40b5ea86 435 AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true)
8a9562d2
PS		 436])
437
8828e5c7 438dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])
064af421
BP		 439dnl
440dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH.
8828e5c7
BP		 441dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with
442dnl <REGEX> translated to uppercase.
064af421
BP		 443AC_DEFUN([OVS_GREP_IFELSE], [
444 AC_MSG_CHECKING([whether $2 matches in $1])
7507ec48
JG		 445 if test -f $1; then
446 grep '$2' $1 >/dev/null 2>&1
447 status=$?
448 case $status in
997d327d 449 0)
7507ec48 450 AC_MSG_RESULT([yes])
8828e5c7 451 m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3])
7507ec48 452 ;;
997d327d 453 1)
7507ec48
JG		 454 AC_MSG_RESULT([no])
455 $4
456 ;;
997d327d 457 *)
7507ec48
JG		 458 AC_MSG_ERROR([grep exited with status $status])
459 ;;
460 esac
461 else
462 AC_MSG_RESULT([file not found])
463 $4
464 fi
064af421
BP		 465])
466
13dd4a97
JS		 467dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH])
468dnl
469dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the
470dnl structure definition. If this is successful, runs IF-MATCH, otherwise
471dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
472dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX>
473dnl translated to uppercase.
474AC_DEFUN([OVS_FIND_FIELD_IFELSE], [
475 AC_MSG_CHECKING([whether $2 has member $3 in $1])
476 if test -f $1; then
83a27884 477 awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null
13dd4a97
JS		 478 status=$?
479 case $status in
480 0)
481 AC_MSG_RESULT([yes])
482 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
483 ;;
484 1)
485 AC_MSG_RESULT([no])
486 $5
487 ;;
488 *)
489 AC_MSG_ERROR([grep exited with status $status])
490 ;;
491 esac
492 else
493 AC_MSG_RESULT([file not found])
494 $5
495 fi
496])
497
71ce9edd
JR		 498dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH])
499dnl
500dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within
501dnl the function signature starting from the line matching FUNCTION
502dnl and ending with the line containing the closing parenthesis. If
503dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If
504dnl IF-MATCH is empty then it defines to
505dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and
506dnl <REGEX> translated to uppercase.
507AC_DEFUN([OVS_FIND_PARAM_IFELSE], [
508 AC_MSG_CHECKING([whether $2 has parameter $3 in $1])
509 if test -f $1; then
510 awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null
511 status=$?
512 case $status in
513 0)
514 AC_MSG_RESULT([yes])
515 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
516 ;;
517 1)
518 AC_MSG_RESULT([no])
519 $5
520 ;;
521 *)
522 AC_MSG_ERROR([grep exited with status $status])
523 ;;
524 esac
525 else
526 AC_MSG_RESULT([file not found])
527 $5
528 fi
529])
530
82b7e6d1
GR		 531dnl OVS_FIND_OP_PARAM_IFELSE(FILE, OP, REGEX, [IF-MATCH], [IF-NO-MATCH])
532dnl
533dnl Looks for OP in FILE. If it is found, greps for REGEX within the
534dnl OP definition. If this is successful, runs IF-MATCH, otherwise
535dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
536dnl OVS_DEFINE(HAVE_<OP>_WITH_<REGEX>), with <OP> and <REGEX>
537dnl translated to uppercase.
538AC_DEFUN([OVS_FIND_OP_PARAM_IFELSE], [
539 AC_MSG_CHECKING([whether $2 has member $3 in $1])
540 if test -f $1; then
541 awk '/$2[[ \t\n]]*\)\(/,/;/' $1 2>/dev/null | grep '$3' >/dev/null
542 status=$?
543 case $status in
544 0)
545 AC_MSG_RESULT([yes])
546 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
547 ;;
548 1)
549 AC_MSG_RESULT([no])
550 $5
551 ;;
552 *)
553 AC_MSG_ERROR([grep exited with status $status])
554 ;;
555 esac
556 else
557 AC_MSG_RESULT([file not found])
558 $5
559 fi
560])
561
064af421
BP		 562dnl OVS_DEFINE(NAME)
563dnl
564dnl Defines NAME to 1 in kcompat.h.
565AC_DEFUN([OVS_DEFINE], [
22bcc0e7 566 echo '#define $1 1' >> datapath/linux/kcompat.h.new
064af421
BP		 567])
568
e3438006 569dnl OVS_CHECK_LINUX_COMPAT
064af421 570dnl
8063e095 571dnl Runs various Autoconf checks on the Linux kernel source in
e3438006
BP		 572dnl the directory in $KBUILD.
573AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
22bcc0e7
JG		 574 rm -f datapath/linux/kcompat.h.new
575 mkdir -p datapath/linux
576 : > datapath/linux/kcompat.h.new
4aa13c0c 577
e23775f2
PS		 578 echo '#include <linux/version.h>
579#ifndef RHEL_RELEASE_CODE
580#define RHEL_RELEASE_CODE 0
581#define RHEL_RELEASE_VERSION(a, b) 0
582#endif' >> datapath/linux/kcompat.h.new
583
e3438006 584 OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,],
25fb3596
JG		 585 [OVS_DEFINE([HAVE_CSUM_COPY_DBG])])
586
db1dcb23
DB		 587 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6_get_cookie],
588 [OVS_DEFINE([HAVE_RT6_GET_COOKIE])])
589
33f9c873
GR		 590 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub],
591 [dst_entry])
e23775f2
PS		 592 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net],
593 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])])
5519e384
YHW		 594 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow.*net],
595 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_FLOW_NET])])
e23775f2 596 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub])
5519e384 597 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow])
e23775f2 598
e3438006 599 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])
4303ec34 600 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL])
54125dd0 601 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO])
4aa13c0c 602
8aef057b 603 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [static_branch_unlikely(],
6660a959 604 [OVS_DEFINE([HAVE_UPSTREAM_STATIC_KEY])])
8aef057b
YHW		 605 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [DEFINE_STATIC_KEY_FALSE],
606 [OVS_DEFINE([HAVE_DEFINE_STATIC_KEY])])
6660a959 607
d923a695 608 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random])
e2f3178f 609 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy])
d923a695 610
e23775f2
PS		 611 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS])
612 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64])
613 OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64])
d923a695 614 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto])
ec96e663 615 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside])
9feb5bda 616 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_hwaccel_clear_tag])
d923a695 617
e3438006 618 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])
46d69d18 619 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset])
2ea82414
PS		 620 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry],
621 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])])
e23775f2
PS		 622 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net],
623 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])])
624
13dd4a97
JS		 625 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net],
626 [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])])
39c0ff22
JS		 627 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net],
628 [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])])
0374bcbe
EB		 629 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
630 [ip_do_fragment], [net],
631 [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])])
0643a78b
PS		 632 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
633 [ip_local_out], [net],
634 [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])])
635
cfda4537 636 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu])
0f09d6e3
JS		 637
638 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU],
639 [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])])
06f1a61a 640 OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu])
595e069a
JS		 641 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const],
642 [OVS_DEFINE([HAVE_INET_FRAGS_CONST])])
8f00ece9
JS		 643 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in],
644 [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])])
e0d45da3 645 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting])
ccd0a13b 646 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor])
91408ae0
JS		 647 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
648 [frags_work])
d1c390e6
JS		 649 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
650 [rwlock])
e0d45da3
JS		 651 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue],
652 [list_evictor])
38f45380 653 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move])
6ccf21ca
YHW		 654 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h],
655 [sub_frag_mem_limit], [struct.netns_frags],
656 [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])])
657 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init],
658 [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])])
401da7b9
JS		 659 OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif],
660 [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])])
8f00ece9 661
f2252c61
PS		 662 dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure.
663 dnl OVS does not really need ipv6 label field, but its presence signifies that
664 dnl the stack has all required ipv6 support.
665 dnl OVS also does not need dst_cache But this dependency allows us to write
666 dnl much cleaner code.
667
3259c4ff
PS		 668 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key],
669 [label],
670 [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h],
671 [iptunnel_pull_offloads],
997d327d 672 [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
e1ededf4
GR		 673 [OVS_GREP_IFELSE([$KSRC/include/net/erspan.h], [erspan_md2],
674 [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])])])
4aa13c0c 675
138df3e5
GR		 676 OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
677 [OVS_DEFINE([USE_BUILTIN_DST_CACHE])])
65590144
YHW		 678 OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr],
679 [OVS_DEFINE([MPLS_HEADER_IS_L3])])
fdce83a3
PS		 680 OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net],
681 [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])])
aad7cb91 682 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst])
e3438006
BP		 683 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
684 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
685 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu])
3f506f07 686 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level])
42d5dd95 687 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment])
96b82f6d 688 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_gso_error_unwind])
42d5dd95 689 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol])
e23775f2 690 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink])
0a0d9095
PS		 691 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check],
692 [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])])
f2252c61
PS		 693 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port])
694 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port])
e2e11c89 695 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_udp_tunnel_add])
d1890de5 696 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
8063e095
PS		 697 dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats.
698 dnl So check type of tstats.
699 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats],
700 [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])])
e23775f2
PS		 701 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device],
702 [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])])
a0c9fedc 703 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help])
e23775f2
PS		 704 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload])
705 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff],
706 [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])])
707 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum])
8ce37339 708 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM])
6ccf21ca
YHW		 709 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
710 [extended])
7efb1e09
PS		 711 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
712 [netdev_master_upper_dev_link], [upper_priv],
713 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])])
b7ab7316
YHW		 714 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
715 [netdev_master_upper_dev_link_rh],
716 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_RH])])
717
6c0bf091
JW		 718 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
719 [max_mtu])
39ca3383
YHW		 720 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops_extended],
721 [ndo_change_mtu], [OVS_DEFINE([HAVE_RHEL7_MAX_MTU])])
140c8971
PM		 722 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
723 [dev_change_flags], [extack],
724 [OVS_DEFINE([HAVE_DEV_CHANGE_FLAGS_TAKES_EXTACK])])
e23775f2
PS		 725
726 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state])
4fdec898
FW		 727 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state],
728 [struct net ], [OVS_DEFINE([HAVE_NF_HOOK_STATE_NET])])
e23775f2 729 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook])
cd7330d0
PS		 730 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops],
731 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])])
0643a78b
PS		 732 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv],
733 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])])
734 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
735 [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])])
179fccce 736 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [NFPROTO_INET])
d42fb06d 737 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [CONFIG_NF_NAT_NEEDED])
179fccce 738
0643a78b 739
e4e04c3b 740 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops],
2b64e8fc 741 [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])])
e2f3178f 742
6d9b6937
JR		 743 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
744 [nf_conn], [struct timer_list[[ \t]]*timeout],
745 [OVS_DEFINE([HAVE_NF_CONN_TIMER])])
746 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
747 [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])])
748
71ce9edd
JR		 749 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
750 [nf_ct_tmpl_alloc], [nf_conntrack_zone],
057772cf 751 [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])])
71ce9edd
JR		 752 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
753 [nf_ct_get_tuplepr], [struct.net],
fa67f8e0 754 [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])])
dfa791b2
FW		 755 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
756 [nf_ct_set])
56ec5593
JS		 757 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
758 [nf_ct_is_untracked])
c1d728db
YHW		 759 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
760 [nf_ct_invert_tuplepr])
ac9cd0d2
JS		 761 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h],
762 [nf_ct_zone_init])
eca4cde0
YS		 763 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
764 [net_ns_get])
459064e7
JS		 765 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
766 [nf_connlabels_get])
7f2ab8cd
JR		 767 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
768 [nf_connlabels_get], [int bit],
769 [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])])
9f04eabe
JR		 770 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
771 [nf_conn_labels], [words])
0d330e42
JR		 772 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add])
773 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding])
fdec3c17 774 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_range2])
9ea96dce
YHW		 775 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_packet],
776 [OVS_DEFINE([HAVE_UPSTREAM_NF_NAT])])
0d330e42 777 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust])
74496432 778 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h], [nf_conncount_gc_list],
4bfdefea
YS		 779 [OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h],
780 [int nf_conncount_add],
781 [], [OVS_DEFINE([HAVE_UPSTREAM_NF_CONNCOUNT])])])
2fc8309b
YHW		 782 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [nf_ct_set_timeout])
783 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [struct nf_ct_timeout],
784 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT])])
785 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h],
786 [\(*nf_ct_timeout_find_get_hook\)], [net],
787 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT_FIND_GET_HOOK_NET])])
057772cf 788
9048ab60
GR		 789 OVS_GREP_IFELSE([$KSRC/include/linux/random.h],
790 [prandom_u32[[\(]]],
791 [OVS_DEFINE([HAVE_PRANDOM_U32])])
f000c879 792 OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max])
4aa13c0c 793
e23775f2
PS		 794 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net])
795 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type])
796 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net],
797 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])])
798 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t])
799
e3438006
BP		 800 OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
801 [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
cf6cb3a2 802 [rcu_read_lock_held])])
8fa52250 803 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held])
3d10a0c8 804 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [net_rwsem])
8b7cc752
YS		 805 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
806 [rtnl_create_link], [extack],
807 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_TAKES_EXTACK])])
efcae7df 808 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [nf_reset_ct])
997d327d 809
6a33828d
BP		 810 # Check for the proto_data_valid member in struct sk_buff. The [^@]
811 # is necessary because some versions of this header remove the
812 # member but retain the kerneldoc comment that describes it (which
813 # starts with @). The brackets must be doubled because of m4
814 # quoting rules.
e3438006 815 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
6a33828d 816 [OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
ccb75a28 817 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset])
e23775f2 818 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol])
f2252c61 819 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type])
c1eb2500 820 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset])
d23239a2 821 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list])
60c4904f 822 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash])
5640cbd8
JG		 823 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash],
824 [OVS_DEFINE([HAVE_U16_RXHASH])])
e3438006 825 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
85444c3f 826 [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
997d327d 827 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
8828e5c7 828 [skb_copy_from_linear_data_offset])
b9c15df9
PS		 829 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
830 [skb_reset_tail_pointer])
e3438006 831 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head])
e3438006 832 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro],
4aa13c0c 833 [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
e3438006 834 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
6c4ea27c 835 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
da4bbeb7 836 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list])
0aa6fda7 837 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
d923a695 838 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
dc0d542d 839 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
1edc458d 840 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags])
c253c2e3
MC		 841 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(],
842 [OVS_DEFINE([HAVE_SKB_GET_HASH])])
e2f3178f 843 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash])
705e9260
PS		 844 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(],
845 [OVS_DEFINE([HAVE_SKB_ZEROCOPY])])
75e93287
FL		 846 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash],
847 [OVS_DEFINE([HAVE_L4_RXHASH])])
5cce04b6 848 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable])
97894370 849 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop])
a27c454e 850 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop])
97894370 851 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push])
c6e13fcc 852 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4])
ea3acd7a 853 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum])
73daf51a 854 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum])
d3c313c1 855 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct])
0ace0a26 856 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero])
4aa13c0c 857
e3438006 858 OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum],
e215ebca 859 [OVS_DEFINE([HAVE_CSUM_TYPES])])
8dbe1f9f
PS		 860 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum],
861 [OVS_DEFINE([HAVE_CSUM_TYPES])])
4aa13c0c 862
e3438006
BP		 863 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4])
864 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
4aa13c0c 865
0d03e51c 866 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk])
1dba1690 867 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy])
0d03e51c 868
114fce23
SG		 869 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners])
870 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset])
14002a59 871 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
6233a1bd
TG		 872 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock],
873 [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])])
c623ba49 874 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse])
13dd4a97
JS		 875 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family],
876 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])])
f1e9590e 877 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_validate_flags])
0643a78b
PS		 878 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h],
879 [genl_notify], [net],
880 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])])
881
13dd4a97
JS		 882
883 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h],
884 [genl_multicast_group], [id])
fdce83a3 885 OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr])
13dd4a97 886
cc1d0dea 887 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
e23775f2 888 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads])
8abaa53c 889 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH])
e23775f2 890 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk])
2d3ef70b 891 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash])
a94ebc39
JS		 892 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst],
893 [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])])
213e1f54
JS		 894 OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock],
895 [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])])
896
91b37647 897 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit])
e3438006 898 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
42d5dd95
TG		 899 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
900 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
901 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64])
dd693f9b 902 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr])
e3438006 903 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
0fcc086d 904 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last])
09c33996 905 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_nest_start_noflag])
6dbd98e6
SH		 906 OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err],
907 [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])])
15702dc9
JB		 908 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h],
909 [nla_parse], [netlink_ext_ack],
910 [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])])
4aa13c0c 911
c4e976db
JG		 912 OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])
913
1f649f1c 914 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto])
17e3889f 915 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag])
e23775f2 916 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol])
5c3f23fe 917 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged])
ca6da1b1 918 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan])
431488e6 919
aadd6ae9
JS		 920 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h],
921 [metadata_dst_alloc], [metadata_type])
922
09f27436
JG		 923 OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq])
924
3174a818
TG		 925 OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata],
926 [OVS_DEFINE([HAVE_VXLAN_METADATA])])
f6a0c895 927 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port],
13dd4a97
JS		 928 [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net],
929 [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])])
930 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check])
e23775f2 931 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete])
06aeda48
PS		 932 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads],
933 [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])])
d7e58913
PS		 934 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg],
935 [gro_receive])
e23775f2
PS		 936
937 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df],
f6a0c895
TG		 938 [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])])
939 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN],
940 [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])])
f285d3e7 941
b7ebebcd
PS		 942 OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx])
943 OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx])
21a719d6
FL		 944 OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6],
945 [OVS_DEFINE([HAVE_RHEL6_PER_CPU])])
c970aa4e
PS		 946 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h],
947 [udp_add_offload], [net],
948 [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])])
802d12b6
GR		 949 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h],
950 [nf_defrag_ipv6_enable], [net],
951 [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])])
bef862bc
GR		 952 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list],
953 [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])])
7f15e8dd
GR		 954 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
955 [needs_free_netdev],
956 [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])])
14365643
GR		 957 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg],
958 [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])])
ac8e3c6d 959 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
35fc0638
GR		 960 [nf_conntrack_helper_put],
961 [OVS_DEFINE(HAVE_NF_CONNTRACK_HELPER_PUT)])
4c941202
YHW		 962 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
963 [nf_nat_helper_try_module_get])
964 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
965 [nf_nat_helper_put])
f90e29c9 966 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],[[[[:space:]]]SKB_GSO_UDP[[[:space:]]]],
ad283644 967 [OVS_DEFINE([HAVE_SKB_GSO_UDP])])
db1dcb23
DB		 968 OVS_GREP_IFELSE([$KSRC/include/net/dst.h],[DST_NOCACHE],
969 [OVS_DEFINE([HAVE_DST_NOCACHE])])
6b51641a
GR		 970 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_link_ops],
971 [extack],
972 [OVS_DEFINE([HAVE_EXT_ACK_IN_RTNL_LINKOPS])])
a5220693
GR		 973 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
974 [list],
975 [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])])
c0802634
EG		 976 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netfilter/nf_conntrack_common.h],
977 [IP_CT_UNTRACKED])
36d3520b
GR		 978 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
979 [netdev_master_upper_dev_link], [extack],
980 [OVS_DEFINE([HAVE_UPPER_DEV_LINK_EXTACK])])
a61fbfa4
GR		 981 OVS_GREP_IFELSE([$KSRC/include/linux/compiler_types.h],
982 [__LINUX_COMPILER_TYPES_H],
983 [OVS_DEFINE([HAVE_LINUX_COMPILER_TYPES_H])])
6deeb55a
AB		 984 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
985 [ktime_get_ts64],
986 [OVS_DEFINE([HAVE_KTIME_GET_TS64])])
b147f2e9
JB		 987 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h],
988 [EXPORT_SYMBOL_GPL(peernet2id_alloc)],
989 [OVS_DEFINE([HAVE_PEERNET2ID_ALLOC])])
1cb57039
AZ		 990 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
991 [ktime_get_ns],
992 [OVS_DEFINE([HAVE_KTIME_GET_NS])])
b3e647ca
GR		 993 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h],
994 frag_percpu_counter_batch[],
995 [OVS_DEFINE([HAVE_FRAG_PERCPU_COUNTER_BATCH])])
8e53509c
WT		 996 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
997 [null_compute_pseudo],
998 [OVS_DEFINE([HAVE_NULL_COMPUTE_PSEUDO])])
999 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1000 [__skb_checksum_convert],
1001 [OVS_DEFINE([HAVE_SKB_CHECKSUM_CONVERT])])
1002 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
1003 [max_mtu],
1004 [OVS_DEFINE([HAVE_NET_DEVICE_MAX_MTU])])
8e53509c
WT		 1005 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip6_tunnel.h], [__ip6_tnl_parm],
1006 [erspan_ver],
1007 [OVS_DEFINE([HAVE_IP6_TNL_PARM_ERSPAN_VER])])
1008 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1009 [SKB_GSO_IPXIP6],
1010 [OVS_DEFINE([HAVE_SKB_GSO_IPXIP6])])
1011 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ipv6.h],
1012 [ip6_make_flowlabel], [fl6],
1013 [OVS_DEFINE([HAVE_IP6_MAKE_FLOWLABEL_FL6])])
1014 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ipv6.h], [netns_sysctl_ipv6],
1015 [auto_flowlabels],
1016 [OVS_DEFINE([HAVE_NETNS_SYSCTL_IPV6_AUTO_FLOWLABELS])])
1017 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1018 [netif_keep_dst],
1019 [OVS_DEFINE([HAVE_NETIF_KEEP_DST])])
1020 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
1021 [ndo_get_iflink],
1022 [OVS_DEFINE([HAVE_NDO_GET_IFLINK])])
1023 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1024 [skb_set_inner_ipproto],
1025 [OVS_DEFINE([HAVE_SKB_SET_INNER_IPPROTO])])
1026 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1027 [tunnel_encap_types],
1028 [OVS_DEFINE([HAVE_TUNNEL_ENCAP_TYPES])])
1029 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1030 [IFLA_IPTUN_ENCAP_TYPE],
1031 [OVS_DEFINE([HAVE_IFLA_IPTUN_ENCAP_TYPE])])
1032 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1033 [IFLA_IPTUN_COLLECT_METADATA],
1034 [OVS_DEFINE([HAVE_IFLA_IPTUN_COLLECT_METADATA])])
e1ededf4
GR		 1035 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1036 [IFLA_GRE_ENCAP_DPORT])
1037 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1038 [IFLA_GRE_COLLECT_METADATA])
1039 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1040 [IFLA_GRE_IGNORE_DF])
1041 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1042 [IFLA_GRE_FWMARK])
1043 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1044 [IFLA_GRE_ERSPAN_INDEX])
1045 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1046 [IFLA_GRE_ERSPAN_HWID])
436d36db
GR		 1047 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1048 [IFLA_IPTUN_FWMARK])
10f24236
GR		 1049 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1050 [csum_valid],
1051 [OVS_DEFINE([HAVE_SKBUFF_CSUM_VALID])])
9feb5bda
MM		 1052 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1053 [vlan_present],
1054 [OVS_DEFINE([HAVE_SKBUFF_VLAN_PRESENT])])
10f24236
GR		 1055 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1056 [skb_checksum_simple_validate])
44a629b5
GR		 1057 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1058 [void.*ndo_get_stats64],
1059 [OVS_DEFINE([HAVE_VOID_NDO_GET_STATS64])])
7f63d830
YS		 1060 OVS_GREP_IFELSE([$KSRC/include/linux/timer.h], [init_timer_deferrable],
1061 [OVS_DEFINE([HAVE_INIT_TIMER_DEFERRABLE])])
3f3b76f9
GR		 1062 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip_tunnels.h],
1063 [ip_tunnel_info_opts_set], [flags],
1064 [OVS_DEFINE([HAVE_IP_TUNNEL_INFO_OPTS_SET_FLAGS])])
4a90b277
GR		 1065 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
1066 [rnd],
1067 [OVS_DEFINE([HAVE_INET_FRAGS_RND])])
f7246940
GS		 1068 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [__LINUX_OVERFLOW_H],
1069 [OVS_DEFINE([HAVE_OVERFLOW_H])])
8f6d230f
YS		 1070 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [struct_size],
1071 [OVS_DEFINE([HAVE_STRUCT_SIZE])])
f7246940
GS		 1072 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_array],
1073 [OVS_DEFINE([HAVE_KVMALLOC_ARRAY])])
1074 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_node],
1075 [OVS_DEFINE([HAVE_KVMALLOC_NODE])])
945d6d1c
YS		 1076 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
1077 [nf_conntrack_l3proto],
1078 [OVS_DEFINE([HAVE_NF_CONNTRACK_L3PROATO_H])])
4fdec898
FW		 1079 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_core.h],
1080 [nf_conntrack_in], [nf_hook_state],
1081 [OVS_DEFINE([HAVE_NF_CONNTRACK_IN_TAKES_NF_HOOK_STATE])])
7857a9b4
FW		 1082 OVS_GREP_IFELSE([$KSRC/include/net/ipv6_frag.h], [IP6_DEFRAG_CONNTRACK_IN],
1083 [OVS_DEFINE([HAVE_IPV6_FRAG_H])])
7685ce31
GF		 1084 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
1085 [nf_ct_helper_ext_add], [nf_conntrack_helper],
1086 [OVS_DEFINE([HAVE_NF_CT_HELPER_EXT_ADD_TAKES_HELPER])])
6d97adee
GR		 1087 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_calc_hlen],
1088 [OVS_DEFINE([HAVE_GRE_CALC_HLEN])])
1089 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [ip_gre_calc_hlen],
1090 [OVS_DEFINE([HAVE_IP_GRE_CALC_HLEN])])
4bfdefea
YS		 1091 OVS_GREP_IFELSE([$KSRC/include/linux/rbtree.h], [rb_link_node_rcu],
1092 [OVS_DEFINE([HAVE_RBTREE_RB_LINK_NODE_RCU])])
6634cc8a
GR		 1093 OVS_GREP_IFELSE([$KSRC/include/net/dst_ops.h], [bool confirm_neigh],
1094 [OVS_DEFINE([HAVE_DST_OPS_CONFIRM_NEIGH])])
f77d85b1
GR		 1095 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [fqdir],
1096 [OVS_DEFINE([HAVE_INET_FRAG_FQDIR])])
2ef0f1c2
JB		 1097 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], [genl_ops],
1098 [policy],
1099 [OVS_DEFINE([HAVE_GENL_OPS_POLICY])])
6db0f72d
JB		 1100 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h],
1101 [nla_parse_deprecated_strict],
1102 [OVS_DEFINE([HAVE_NLA_PARSE_DEPRECATED_STRICT])])
82b7e6d1
GR		 1103 OVS_FIND_OP_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
1104 [validate], [extack],
1105 [OVS_DEFINE([HAVE_RTNLOP_VALIDATE_WITH_EXTACK])])
9ba57fc7
HZ		 1106 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1107 [__skb_set_hash])
1108 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [sw_hash])
1109 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash_raw])
21a719d6 1110
22bcc0e7
JG		 1111 if cmp -s datapath/linux/kcompat.h.new \
1112 datapath/linux/kcompat.h >/dev/null 2>&1; then
1113 rm datapath/linux/kcompat.h.new
064af421 1114 else
22bcc0e7 1115 mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h
064af421
BP		 1116 fi
1117])
1118
f6eb6b20 1119dnl Checks for net/if_dl.h.
d30e714c 1120dnl
d23fa2ed
YT		 1121dnl (We use this as a proxy for checking whether we're building on FreeBSD
1122dnl or NetBSD.)
9360d9b7
EM		 1123AC_DEFUN([OVS_CHECK_IF_DL],
1124 [AC_CHECK_HEADER([net/if_dl.h],
1125 [HAVE_IF_DL=yes],
1126 [HAVE_IF_DL=no])
1127 AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes])
1128 if test "$HAVE_IF_DL" = yes; then
1129 AC_DEFINE([HAVE_IF_DL], [1],
1130 [Define to 1 if net/if_dl.h is available.])
d30e714c 1131
d23fa2ed 1132 # On these platforms we use libpcap to access network devices.
d30e714c 1133 AC_SEARCH_LIBS([pcap_open_live], [pcap])
9360d9b7
EM		 1134 fi])
1135
e50097d2
BP		 1136dnl Checks for buggy strtok_r.
1137dnl
1138dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling
1139dnl with optimization that can cause segfaults:
1140dnl
1141dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
1142AC_DEFUN([OVS_CHECK_STRTOK_R],
1143 [AC_CACHE_CHECK(
1144 [whether strtok_r macro segfaults on some inputs],
1145 [ovs_cv_strtok_r_bug],
1146 [AC_RUN_IFELSE(
1147 [AC_LANG_PROGRAM([#include <stdio.h>
1148 #include <string.h>
1149 ],
416e7132
BP		 1150 [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
1151 /* Assume bug is present, because relatively minor
1152 changes in compiler settings (e.g. optimization
1153 level) can make it crop up. */
1154 return 1;
1155 #else
1156 char string[] = ":::";
e50097d2
BP		 1157 char *save_ptr = (char *) 0xc0ffee;
1158 char *token1, *token2;
1159 token1 = strtok_r(string, ":", &save_ptr);
1160 token2 = strtok_r(NULL, ":", &save_ptr);
5819a7cd 1161 freopen ("/dev/null", "w", stdout);
e50097d2
BP		 1162 printf ("%s %s\n", token1, token2);
1163 return 0;
416e7132 1164 #endif
e50097d2
BP		 1165 ]])],
1166 [ovs_cv_strtok_r_bug=no],
1167 [ovs_cv_strtok_r_bug=yes],
1168 [ovs_cv_strtok_r_bug=yes])])
1169 if test $ovs_cv_strtok_r_bug = yes; then
1170 AC_DEFINE([HAVE_STRTOK_R_BUG], [1],
1171 [Define if strtok_r macro segfaults on some inputs])
1172 fi
1173])
1174
064af421
BP		 1175dnl ----------------------------------------------------------------------
1176dnl These macros are from GNU PSPP, with the following original license:
1177dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
1178dnl This file is free software; the Free Software Foundation
1179dnl gives unlimited permission to copy and/or distribute it,
1180dnl with or without modifications, as long as this notice is preserved.
1181
50194820 1182AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl
726af752 1183 m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl
064af421
BP		 1184 AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name],
1185 [ovs_save_CFLAGS="$CFLAGS"
50194820
BP		 1186 dnl Include -Werror in the compiler options, because without -Werror
1187 dnl clang's GCC-compatible compiler driver does not return a failure
1188 dnl exit status even though it complains about options it does not
1189 dnl understand.
c2deac54
YT		 1190 dnl
1191 dnl Also, check stderr as gcc exits with status 0 for options
1192 dnl rejected at getopt level.
1193 dnl % touch /tmp/a.c
1194 dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $?
1195 dnl gcc: unrecognized option '-Qunused-arguments'
1196 dnl 0
1197 dnl %
4c1e8cb9
BP		 1198 dnl
1199 dnl In addition, GCC does not complain about a -Wno-<foo> option that
1200 dnl it does not understand, unless it has another error to report, so
1201 dnl instead of testing for -Wno-<foo>, test for the positive version.
1202 CFLAGS="$CFLAGS $WERROR m4_bpatsubst([$1], [-Wno-], [-W])"
37f4615e
BP		 1203 AC_COMPILE_IFELSE(
1204 [AC_LANG_SOURCE([int x;])],
1205 [if test -s conftest.err && grep "unrecognized option" conftest.err
1206 then
1207 ovs_cv_name[]=no
1208 else
1209 ovs_cv_name[]=yes
1210 fi],
1211 [ovs_cv_name[]=no])
064af421
BP		 1212 CFLAGS="$ovs_save_CFLAGS"])
1213 if test $ovs_cv_name = yes; then
83f6c050 1214 m4_if([$2], [], [:], [$2])
064af421
BP		 1215 else
1216 m4_if([$3], [], [:], [$3])
1217 fi
1218])
1219
50194820
BP		 1220dnl OVS_CHECK_WERROR
1221dnl
1222dnl Check whether the C compiler accepts -Werror.
1223dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string.
1224AC_DEFUN([OVS_CHECK_WERROR],
1225 [WERROR=
1226 _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])])
1227
1228dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
1229dnl Check whether the given C compiler OPTION is accepted.
1230dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED.
1231AC_DEFUN([OVS_CHECK_CC_OPTION],
1232 [AC_REQUIRE([OVS_CHECK_WERROR])
1233 _OVS_CHECK_CC_OPTION([$1], [$2], [$3])])
1234
064af421
BP		 1235dnl OVS_ENABLE_OPTION([OPTION])
1236dnl Check whether the given C compiler OPTION is accepted.
d161c099 1237dnl If so, add it to WARNING_FLAGS.
064af421
BP		 1238dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement])
1239AC_DEFUN([OVS_ENABLE_OPTION],
d161c099
BP		 1240 [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"])
1241 AC_SUBST([WARNING_FLAGS])])
c72e245a
BP		 1242
1243dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL])
1244dnl Check whether the given C compiler OPTION is accepted.
1245dnl If so, enable the given Automake CONDITIONAL.
1246
1247dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
1248AC_DEFUN([OVS_CONDITIONAL_CC_OPTION],
1249 [OVS_CHECK_CC_OPTION(
1250 [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no])
1251 AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])])
064af421 1252dnl ----------------------------------------------------------------------
ed2d4f6a
BP		 1253
1254dnl Check for too-old XenServer.
1255AC_DEFUN([OVS_CHECK_XENSERVER_VERSION],
1256 [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion],
1257 [if test -e /etc/redhat-release; then
1258 ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release`
1259 fi
1260 if test -z "$ovs_cv_xsversion"; then
1261 ovs_cv_xsversion=none
1262 fi])
1263 case $ovs_cv_xsversion in
1264 none)
1265 ;;
1266
1267 [[1-9]][[0-9]]* | dnl XenServer 10 or later
1268 [[6-9]]* | dnl XenServer 6 or later
1269 5.[[7-9]]* | dnl XenServer 5.7 or later
1270 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later
1271 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later
1272 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later
1273 ;;
1274
1275 *)
1276 AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)])
1277 ;;
1278 esac])
29d935d6 1279
643c0c34
BP		 1280dnl OVS_CHECK_SPARSE_TARGET
1281dnl
1282dnl The "cgcc" script from "sparse" isn't very good at detecting the
1283dnl target for which the code is being built. This helps it out.
1284AC_DEFUN([OVS_CHECK_SPARSE_TARGET],
1285 [AC_CACHE_CHECK(
1286 [target hint for cgcc],
1287 [ac_cv_sparse_target],
1288 [AS_CASE([`$CC -dumpmachine 2>/dev/null`],
1289 [i?86-* | athlon-*], [ac_cv_sparse_target=x86],
1290 [x86_64-*], [ac_cv_sparse_target=x86_64],
1291 [ac_cv_sparse_target=other])])
1292 AS_CASE([$ac_cv_sparse_target],
0cdd5b13
BP		 1293 [x86], [SPARSEFLAGS= CGCCFLAGS="-target=i86 -target=host_os_specs"],
1294 [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS="-target=x86_64 -target=host_os_specs"],
643c0c34 1295 [SPARSEFLAGS= CGCCFLAGS=])
346c6538 1296
e5273084 1297 dnl Get the default defines for vector instructions from compiler to
346c6538
IM		 1298 dnl allow "sparse" correctly check the same code that will be built.
1299 dnl Required for checking DPDK headers.
1300 AC_MSG_CHECKING([vector options for cgcc])
1301 VECTOR=$($CC -dM -E - < /dev/null | grep -E "MMX|SSE|AVX" | \
1302 cut -c 9- | sed 's/ /=/' | sed 's/^/-D/' | tr '\n' ' ')
1303 AC_MSG_RESULT([$VECTOR])
1304 CGCCFLAGS="$CGCCFLAGS $VECTOR"
1305
643c0c34
BP		 1306 AC_SUBST([SPARSEFLAGS])
1307 AC_SUBST([CGCCFLAGS])])
1308
32e96ab7
AZ		 1309dnl OVS_SPARSE_EXTRA_INCLUDES
1310dnl
1311dnl The cgcc script from "sparse" does not search gcc's default
1312dnl search path. Get the default search path from GCC and pass
1313dnl them to sparse.
1314AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES],
1315 AC_SUBST([SPARSE_EXTRA_INCLUDES],
1316 [`$CC -v -E - </dev/null 2>&1 >/dev/null | sed -n -e '/^#include.*search.*starts.*here:/,/^End.*of.*search.*list\./s/^ \(.*\)/-I \1/p' |grep -v /usr/lib | grep -x -v '\-I /usr/include' | tr \\\n ' ' `] ))
1317
29d935d6
BP		 1318dnl OVS_ENABLE_SPARSE
1319AC_DEFUN([OVS_ENABLE_SPARSE],
643c0c34 1320 [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET])
32e96ab7 1321 AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES])
372d58a4
BP		 1322 : ${SPARSE=sparse}
1323 AC_SUBST([SPARSE])
1324 AC_CONFIG_COMMANDS_PRE(
d4042a70
BP		 1325 [CC='$(if $(C:0=),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) $(SPARSE_WERROR) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])
1326
1327 AC_ARG_ENABLE(
1328 [sparse],
1329 [AC_HELP_STRING([--enable-sparse], [Run "sparse" by default])],
1330 [], [enable_sparse=no])
1331 AM_CONDITIONAL([ENABLE_SPARSE_BY_DEFAULT], [test $enable_sparse = yes])])
8a8cd0ac 1332
0eaaacac
FL		 1333dnl OVS_CTAGS_IDENTIFIERS
1334dnl
9ed9df77
FL		 1335dnl ctags ignores symbols with extras identifiers. This is a list of
1336dnl specially handled identifiers to be ignored. [ctags(1) -I <list>].
0eaaacac
FL		 1337AC_DEFUN([OVS_CTAGS_IDENTIFIERS],
1338 AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST],
9ed9df77 1339 ["OVS_LOCKABLE OVS_NO_THREAD_SAFETY_ANALYSIS OVS_REQ_RDLOCK+ OVS_ACQ_RDLOCK+ OVS_REQ_WRLOCK+ OVS_ACQ_WRLOCK+ OVS_REQUIRES+ OVS_ACQUIRES+ OVS_TRY_WRLOCK+ OVS_TRY_RDLOCK+ OVS_TRY_LOCK+ OVS_GUARDED_BY+ OVS_EXCLUDED+ OVS_RELEASES+ OVS_ACQ_BEFORE+ OVS_ACQ_AFTER+"]))
0eaaacac 1340
8a8cd0ac
BP		 1341dnl OVS_PTHREAD_SET_NAME
1342dnl
1343dnl This checks for three known variants of pthreads functions for setting
1344dnl the name of the current thread:
1345dnl
1346dnl glibc: int pthread_setname_np(pthread_t, const char *name);
1347dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg);
1348dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name);
1349dnl
1350dnl For glibc and FreeBSD, the arguments are just a thread and its name. For
1351dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to
1352dnl provide to it.
1353dnl
1354dnl This macro defines:
1355dnl
1356dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP
1357dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP
1358dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP
1359AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME],
1360 [AC_CHECK_FUNCS([pthread_set_name_np])
1361 if test $ac_cv_func_pthread_set_name_np != yes; then
1362 AC_CACHE_CHECK(
1363 [for pthread_setname_np() variant],
1364 [ovs_cv_pthread_setname_np],
1365 [AC_LINK_IFELSE(
a0903134 1366 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac 1367 ], [pthread_setname_np(pthread_self(), "name");])],
a0903134 1368 [ovs_cv_pthread_setname_np=glibc],
8a8cd0ac 1369 [AC_LINK_IFELSE(
a0903134 1370 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac
BP		 1371], [pthread_setname_np(pthread_self(), "%s", "name");])],
1372 [ovs_cv_pthread_setname_np=netbsd],
a0903134 1373 [ovs_cv_pthread_setname_np=none])])])
8a8cd0ac
BP		 1374 case $ovs_cv_pthread_setname_np in # (
1375 glibc)
a0903134
YT		 1376 AC_DEFINE(
1377 [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1],
1378 [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).])
1379 ;; # (
8a8cd0ac 1380 netbsd)
a0903134
YT		 1381 AC_DEFINE(
1382 [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1],
1383 [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).])
1384 ;;
8a8cd0ac
BP		 1385 esac
1386 fi])
5020f5f0
BP		 1387
1388dnl OVS_CHECK_LINUX_HOST.
1389dnl
1390dnl Checks whether we're building for a Linux host, based on the presence of
1391dnl the __linux__ preprocessor symbol, and sets up an Automake conditional
1392dnl LINUX based on the result.
1393AC_DEFUN([OVS_CHECK_LINUX_HOST],
1394 [AC_CACHE_CHECK(
1395 [whether __linux__ is defined],
1396 [ovs_cv_linux],
1397 [AC_COMPILE_IFELSE(
1398 [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])],
1399 [ovs_cv_linux=true],
1400 [ovs_cv_linux=false])])
1401 AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])
openvswitch mirror