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Revert "netdev-offload-dpdk: Fix for broken ethernet matching HWOL for XL710NIC."
[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
e90e115a
HH		 17dnl Set OVS DPCLS Autovalidator as default subtable search at compile time?
18dnl This enables automatically running all unit tests with all DPCLS
19dnl implementations.
20AC_DEFUN([OVS_CHECK_DPCLS_AUTOVALIDATOR], [
21 AC_ARG_ENABLE([autovalidator],
22 [AC_HELP_STRING([--enable-autovalidator], [Enable DPCLS autovalidator as default subtable search implementation.])],
23 [autovalidator=yes],[autovalidator=no])
24 AC_MSG_CHECKING([whether DPCLS Autovalidator is default implementation])
25 if test "$autovalidator" != yes; then
26 AC_MSG_RESULT([no])
27 else
28 OVS_CFLAGS="$OVS_CFLAGS -DDPCLS_AUTOVALIDATOR_DEFAULT"
29 AC_MSG_RESULT([yes])
30 fi
31])
32
a64e37a1
BP		 33dnl OVS_ENABLE_WERROR
34AC_DEFUN([OVS_ENABLE_WERROR],
35 [AC_ARG_ENABLE(
36 [Werror],
37 [AC_HELP_STRING([--enable-Werror], [Add -Werror to CFLAGS])],
38 [], [enable_Werror=no])
39 AC_CONFIG_COMMANDS_PRE(
40 [if test "X$enable_Werror" = Xyes; then
95626395 41 OVS_CFLAGS="$OVS_CFLAGS -Werror"
308bf988
BP		 42 fi])
43
44 # Unless --enable-Werror is specified, report but do not fail the build
45 # for errors reported by flake8.
46 if test "X$enable_Werror" = Xyes; then
47 FLAKE8_WERROR=
48 else
49 FLAKE8_WERROR=-
50 fi
df265086
BP		 51 AC_SUBST([FLAKE8_WERROR])
52
53 # If --enable-Werror is specified, fail the build on sparse warnings.
54 if test "X$enable_Werror" = Xyes; then
55 SPARSE_WERROR=-Wsparse-error
56 else
57 SPARSE_WERROR=
58 fi
59 AC_SUBST([SPARSE_WERROR])])
a64e37a1 60
e3438006 61dnl OVS_CHECK_LINUX
064af421 62dnl
997d327d 63dnl Configure linux kernel source tree
e3438006 64AC_DEFUN([OVS_CHECK_LINUX], [
8a2d6596
BP		 65 AC_ARG_WITH([linux],
66 [AC_HELP_STRING([--with-linux=/path/to/linux],
67 [Specify the Linux kernel build directory])])
68 AC_ARG_WITH([linux-source],
69 [AC_HELP_STRING([--with-linux-source=/path/to/linux-source],
70 [Specify the Linux kernel source directory
a0903134
YT		 71 (usually figured out automatically from build
72 directory)])])
8a2d6596
BP		 73
74 # Deprecated equivalents to --with-linux, --with-linux-source.
75 AC_ARG_WITH([l26])
76 AC_ARG_WITH([l26-source])
77
78 if test X"$with_linux" != X; then
79 KBUILD=$with_linux
80 elif test X"$with_l26" != X; then
81 KBUILD=$with_l26
82 AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead])
83 else
84 KBUILD=
85 fi
86
87 if test X"$KBUILD" != X; then
88 if test X"$with_linux_source" != X; then
89 KSRC=$with_linux_source
90 elif test X"$with_l26_source" != X; then
91 KSRC=$with_l26_source
92 AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead])
0a89c170
BP		 93 else
94 KSRC=
8a2d6596
BP		 95 fi
96 elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then
97 AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory])
98 fi
99
e3438006
BP		 100 if test -n "$KBUILD"; then
101 KBUILD=`eval echo "$KBUILD"`
102 case $KBUILD in
0b6d72fc 103 /*) ;;
e3438006 104 *) KBUILD=`pwd`/$KBUILD ;;
0b6d72fc 105 esac
064af421 106
7c9e113b
BP		 107 # The build directory is what the user provided.
108 # Make sure that it exists.
8a2d6596 109 AC_MSG_CHECKING([for Linux build directory])
e3438006 110 if test -d "$KBUILD"; then
a0903134
YT		 111 AC_MSG_RESULT([$KBUILD])
112 AC_SUBST(KBUILD)
064af421 113 else
a0903134
YT		 114 AC_MSG_RESULT([no])
115 AC_ERROR([source dir $KBUILD doesn't exist])
064af421
BP		 116 fi
117
7c9e113b 118 # Debian breaks kernel headers into "source" header and "build" headers.
e3438006 119 # We want the source headers, but $KBUILD gives us the "build" headers.
7c9e113b 120 # Use heuristics to find the source headers.
8a2d6596 121 AC_MSG_CHECKING([for Linux source directory])
e3438006
BP		 122 if test -n "$KSRC"; then
123 KSRC=`eval echo "$KSRC"`
124 case $KSRC in
f5fb5de6 125 /*) ;;
e3438006 126 *) KSRC=`pwd`/$KSRC ;;
b57f675c 127 esac
e3438006 128 if test ! -e $KSRC/include/linux/kernel.h; then
53319f95 129 AC_MSG_ERROR([$KSRC is not a kernel source directory])
f5fb5de6
BP		 130 fi
131 else
e3438006
BP		 132 KSRC=$KBUILD
133 if test ! -e $KSRC/include/linux/kernel.h; then
fe0731b1
BP		 134 # Debian kernel build Makefiles tend to include a line of the form:
135 # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486
136 # First try to extract the source directory from this line.
137 KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile`
138 if test ! -e "$KSRC"/include/linux/kernel.h; then
139 # Didn't work. Fall back to name-based heuristics that used to work.
140 case `echo "$KBUILD" | sed 's,/*$,,'` in # (
141 */build)
142 KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'`
143 ;; # (
144 *)
145 KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'`
146 ;;
147 esac
148 fi
f5fb5de6 149 fi
fe0731b1 150 if test ! -e "$KSRC"/include/linux/kernel.h; then
8a2d6596 151 AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)])
7c9e113b
BP		 152 fi
153 fi
e3438006 154 AC_MSG_RESULT([$KSRC])
7c9e113b
BP		 155
156 AC_MSG_CHECKING([for kernel version])
71fe9970 157 version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"`
e3438006
BP		 158 patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"`
159 sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"`
71fe9970 160 if test X"$version" = X || test X"$patchlevel" = X; then
7c9e113b 161 AC_ERROR([cannot determine kernel version])
71fe9970
BP		 162 elif test X"$sublevel" = X; then
163 kversion=$version.$patchlevel
164 else
165 kversion=$version.$patchlevel.$sublevel
7c9e113b 166 fi
71fe9970
BP		 167 AC_MSG_RESULT([$kversion])
168
2adada0e 169 if test "$version" -ge 5; then
44722d58 170 if test "$version" = 5 && test "$patchlevel" -le 8; then
2adada0e 171 : # Linux 5.x
d76aabea 172 else
44722d58 173 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 5.8.x is not supported (please refer to the FAQ for advice)])
d76aabea 174 fi
2adada0e
YS		 175 elif test "$version" = 4; then
176 : # Linux 4.x
8063e095 177 elif test "$version" = 3 && test "$patchlevel" -ge 10; then
3afcde43 178 : # Linux 3.x
71fe9970 179 else
8063e095 180 AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required])
064af421 181 fi
2520f452
IY		 182 if (test ! -e "$KBUILD"/include/linux/version.h && \
183 test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \
e3438006
BP		 184 (test ! -e "$KBUILD"/include/linux/autoconf.h && \
185 test ! -e "$KBUILD"/include/generated/autoconf.h); then
a0903134 186 AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
064af421 187 fi
e3438006 188 OVS_CHECK_LINUX_COMPAT
064af421 189 fi
e3438006 190 AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD")
064af421
BP		 191])
192
292d5bd9
VB		 193dnl OVS_CHECK_LINUX_NETLINK
194dnl
195dnl Configure Linux netlink compat.
196AC_DEFUN([OVS_CHECK_LINUX_NETLINK], [
197 AC_COMPILE_IFELSE([
198 AC_LANG_PROGRAM([#include <linux/netlink.h>], [
199 struct nla_bitfield32 x = { 0 };
200 ])],
201 [AC_DEFINE([HAVE_NLA_BITFIELD32], [1],
202 [Define to 1 if struct nla_bitfield32 is available.])])
203])
204
1dc0da67
PB		 205dnl OVS_CHECK_LINUX_TC
206dnl
207dnl Configure Linux tc compat.
208AC_DEFUN([OVS_CHECK_LINUX_TC], [
209 AC_COMPILE_IFELSE([
210 AC_LANG_PROGRAM([#include <linux/pkt_cls.h>], [
292d5bd9 211 int x = TCA_ACT_FLAGS;
1dc0da67 212 ])],
292d5bd9
VB		 213 [AC_DEFINE([HAVE_TCA_ACT_FLAGS], [1],
214 [Define to 1 if TCA_ACT_FLAGS is available.])])
1dc0da67 215
c0a1df2e
RD		 216 AC_CHECK_MEMBERS([struct tcf_t.firstuse], [], [], [#include <linux/pkt_cls.h>])
217
1dc0da67
PB		 218 AC_COMPILE_IFELSE([
219 AC_LANG_PROGRAM([#include <linux/tc_act/tc_vlan.h>], [
220 int x = TCA_VLAN_PUSH_VLAN_PRIORITY;
221 ])],
222 [AC_DEFINE([HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY], [1],
dd83253e 223 [Define to 1 if TCA_VLAN_PUSH_VLAN_PRIORITY is available.])])
1dc0da67 224
abef7959
JH		 225 AC_COMPILE_IFELSE([
226 AC_LANG_PROGRAM([#include <linux/tc_act/tc_mpls.h>], [
227 int x = TCA_MPLS_TTL;
228 ])],
229 [AC_DEFINE([HAVE_TCA_MPLS_TTL], [1],
230 [Define to 1 if HAVE_TCA_MPLS_TTL is available.])])
231
1dc0da67
PB		 232 AC_COMPILE_IFELSE([
233 AC_LANG_PROGRAM([#include <linux/tc_act/tc_tunnel_key.h>], [
4b12e454 234 int x = TCA_TUNNEL_KEY_ENC_TTL;
1dc0da67 235 ])],
4b12e454
OG		 236 [AC_DEFINE([HAVE_TCA_TUNNEL_KEY_ENC_TTL], [1],
237 [Define to 1 if TCA_TUNNEL_KEY_ENC_TTL is available.])])
e5b1657e
PB		 238
239 AC_COMPILE_IFELSE([
240 AC_LANG_PROGRAM([#include <linux/tc_act/tc_pedit.h>], [
241 int x = TCA_PEDIT_KEY_EX_HDR_TYPE_UDP;
242 ])],
243 [AC_DEFINE([HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP], [1],
dd83253e 244 [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is available.])])
7808b2b9
JH		 245
246 AC_COMPILE_IFELSE([
247 AC_LANG_PROGRAM([#include <linux/tc_act/tc_skbedit.h>], [
248 int x = TCA_SKBEDIT_FLAGS;
249 ])],
250 [AC_DEFINE([HAVE_TCA_SKBEDIT_FLAGS], [1],
251 [Define to 1 if TCA_SKBEDIT_FLAGS is available.])])
1dc0da67
PB		 252])
253
8c7130da
AC		 254dnl OVS_CHECK_LINUX_SCTP_CT
255dnl
256dnl Checks for kernels which need additional SCTP state
257AC_DEFUN([OVS_CHECK_LINUX_SCTP_CT], [
258 AC_COMPILE_IFELSE([
259 AC_LANG_PROGRAM([#include <linux/netfilter/nfnetlink.h>
260#include <linux/netfilter/nfnetlink_conntrack.h>
261#include <linux/netfilter/nf_conntrack_common.h>
262#include <linux/netfilter/nf_conntrack_sctp.h>], [
263 int x = SCTP_CONNTRACK_HEARTBEAT_SENT;
264 ])],
265 [AC_DEFINE([HAVE_SCTP_CONNTRACK_HEARTBEATS], [1],
266 [Define to 1 if SCTP_CONNTRACK_HEARTBEAT_SENT is available.])])
267])
268
fd4d4777
YHW		 269dnl OVS_CHECK_LINUX_VIRTIO_TYPES
270dnl
271dnl Checks for kernels that need virtio_types definition.
272AC_DEFUN([OVS_CHECK_LINUX_VIRTIO_TYPES], [
273 AC_COMPILE_IFELSE([
274 AC_LANG_PROGRAM([#include <linux/virtio_types.h>], [
275 __virtio16 x = 0;
276 ])],
277 [AC_DEFINE([HAVE_VIRTIO_TYPES], [1],
278 [Define to 1 if __virtio16 is available.])])
279])
280
f0d1ead8
IM		 281dnl OVS_FIND_DEPENDENCY(FUNCTION, SEARCH_LIBS, NAME_TO_PRINT)
282dnl
283dnl Check for a function in a library list.
284AC_DEFUN([OVS_FIND_DEPENDENCY], [
285 AC_SEARCH_LIBS([$1], [$2], [], [
286 AC_MSG_ERROR([unable to find $3, install the dependency package])
287 ])
288])
289
0de1b425
WT		 290dnl OVS_CHECK_LINUX_AF_XDP
291dnl
292dnl Check both Linux kernel AF_XDP and libbpf support
293AC_DEFUN([OVS_CHECK_LINUX_AF_XDP], [
294 AC_ARG_ENABLE([afxdp],
295 [AC_HELP_STRING([--enable-afxdp], [Enable AF-XDP support])],
296 [], [enable_afxdp=no])
297 AC_MSG_CHECKING([whether AF_XDP is enabled])
298 if test "$enable_afxdp" != yes; then
299 AC_MSG_RESULT([no])
300 AF_XDP_ENABLE=false
301 else
302 AC_MSG_RESULT([yes])
303 AF_XDP_ENABLE=true
304
305 AC_CHECK_HEADER([bpf/libbpf.h], [],
306 [AC_MSG_ERROR([unable to find bpf/libbpf.h for AF_XDP support])])
307
308 AC_CHECK_HEADER([linux/if_xdp.h], [],
309 [AC_MSG_ERROR([unable to find linux/if_xdp.h for AF_XDP support])])
310
311 AC_CHECK_HEADER([bpf/xsk.h], [],
312 [AC_MSG_ERROR([unable to find bpf/xsk.h for AF_XDP support])])
313
314 AC_CHECK_FUNCS([pthread_spin_lock], [],
315 [AC_MSG_ERROR([unable to find pthread_spin_lock for AF_XDP support])])
316
e8568993
YHW		 317 OVS_FIND_DEPENDENCY([numa_alloc_onnode], [numa], [libnuma])
318
0de1b425
WT		 319 AC_DEFINE([HAVE_AF_XDP], [1],
320 [Define to 1 if AF_XDP support is available and enabled.])
321 LIBBPF_LDADD=" -lbpf -lelf"
322 AC_SUBST([LIBBPF_LDADD])
e50547b5
WT		 323
324 AC_CHECK_DECL([xsk_ring_prod__needs_wakeup], [
325 AC_DEFINE([HAVE_XDP_NEED_WAKEUP], [1],
326 [XDP need wakeup support detected in xsk.h.])
327 ], [], [[#include <bpf/xsk.h>]])
0de1b425
WT		 328 fi
329 AM_CONDITIONAL([HAVE_AF_XDP], test "$AF_XDP_ENABLE" = true)
330])
331
8a9562d2
PS		 332dnl OVS_CHECK_DPDK
333dnl
334dnl Configure DPDK source tree
335AC_DEFUN([OVS_CHECK_DPDK], [
336 AC_ARG_WITH([dpdk],
252e1e57
IS		 337 [AC_HELP_STRING([--with-dpdk=static|shared|yes],
338 [Specify "static" or "shared" depending on the
339 DPDK libraries to use])],
4c16ee48 340 [have_dpdk=true])
8a9562d2 341
49df3c0f 342 AC_MSG_CHECKING([whether dpdk is enabled])
4c16ee48 343 if test "$have_dpdk" != true || test "$with_dpdk" = no; then
40b5ea86
BB		 344 AC_MSG_RESULT([no])
345 DPDKLIB_FOUND=false
346 else
347 AC_MSG_RESULT([yes])
348 case "$with_dpdk" in
252e1e57
IS		 349 "shared")
350 PKG_CHECK_MODULES([DPDK], [libdpdk], [
351 DPDK_INCLUDE="$DPDK_CFLAGS"
352 DPDK_LIB="$DPDK_LIBS"], [
353 DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"
354 DPDK_LIB="-ldpdk"])
355 ;;
356 "static" | "yes")
357 PKG_CHECK_MODULES_STATIC([DPDK], [libdpdk], [
358 DPDK_INCLUDE="$DPDK_CFLAGS"
359 DPDK_LIB="$DPDK_LIBS"], [
360 DPDK_INCLUDE="-I/usr/local/include/dpdk -I/usr/include/dpdk"
361 DPDK_LIB="-ldpdk"])
362
363 dnl Statically linked private DPDK objects of form
364 dnl -l:file.a must be positioned between
365 dnl --whole-archive ... --no-whole-archive linker parameters.
366 dnl Old pkg-config versions misplace --no-whole-archive parameter
367 dnl and put it next to --whole-archive.
368 AC_MSG_CHECKING([for faulty pkg-config version])
369 echo "$DPDK_LIB" | grep -q 'whole-archive.*l:lib.*no-whole-archive'
370 status=$?
371 case $status in
372 0)
373 AC_MSG_RESULT([no])
374 ;;
375 1)
376 AC_MSG_RESULT([yes])
377 AC_MSG_ERROR([Please upgrade pkg-config])
378 ;;
379 *)
380 AC_MSG_ERROR([grep exited with status $status])
381 ;;
382 esac
40b5ea86 383 esac
8a9562d2 384
95626395
TG		 385 ovs_save_CFLAGS="$CFLAGS"
386 ovs_save_LDFLAGS="$LDFLAGS"
96195c09 387 CFLAGS="$CFLAGS $DPDK_INCLUDE"
40b5ea86 388
865cee2b
IM		 389 AC_CHECK_HEADERS([rte_config.h], [], [
390 AC_MSG_ERROR([unable to find rte_config.h in $with_dpdk])
391 ], [AC_INCLUDES_DEFAULT])
392
f0d1ead8
IM		 393 AC_CHECK_DECLS([RTE_LIBRTE_VHOST_NUMA, RTE_EAL_NUMA_AWARE_HUGEPAGES], [
394 OVS_FIND_DEPENDENCY([get_mempolicy], [numa], [libnuma])
395 ], [], [[#include <rte_config.h>]])
4b88d678 396
976c452a
CL		 397 AC_CHECK_DECL([RTE_LIBRTE_PMD_PCAP], [
398 OVS_FIND_DEPENDENCY([pcap_dump_close], [pcap], [libpcap])
399 ], [], [[#include <rte_config.h>]])
400
5bb068a7
CL		 401 AC_CHECK_DECL([RTE_LIBRTE_PMD_AF_XDP], [
402 LIBBPF_LDADD="-lbpf"
403 ], [], [[#include <rte_config.h>]])
404
f0d1ead8
IM		 405 AC_CHECK_DECL([RTE_LIBRTE_VHOST_NUMA], [
406 AC_DEFINE([VHOST_NUMA], [1], [NUMA Aware vHost support detected in DPDK.])
407 ], [], [[#include <rte_config.h>]])
fc3b425f 408
f0d1ead8 409 AC_CHECK_DECL([RTE_LIBRTE_MLX5_PMD], [dnl found
b926f577 410 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 411 OVS_FIND_DEPENDENCY([mlx5dv_create_wq], [mlx5], [libmlx5])
412 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
413 ], [[#include <rte_config.h>]])
414 ], [], [[#include <rte_config.h>]])
84844e3f 415
f0d1ead8 416 AC_CHECK_DECL([RTE_LIBRTE_MLX4_PMD], [dnl found
b926f577 417 AC_CHECK_DECL([RTE_IBVERBS_LINK_DLOPEN], [], [dnl not found
f0d1ead8
IM		 418 OVS_FIND_DEPENDENCY([mlx4dv_init_obj], [mlx4], [libmlx4])
419 OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
420 ], [[#include <rte_config.h>]])
421 ], [], [[#include <rte_config.h>]])
939bad9a 422
e2f37511
IM		 423 # DPDK uses dlopen to load plugins.
424 OVS_FIND_DEPENDENCY([dlopen], [dl], [libdl])
425
426 AC_MSG_CHECKING([whether linking with dpdk works])
427 LIBS="$DPDK_LIB $LIBS"
428 AC_LINK_IFELSE(
429 [AC_LANG_PROGRAM([#include <rte_config.h>
430 #include <rte_eal.h>],
431 [int rte_argc; char ** rte_argv;
432 rte_eal_init(rte_argc, rte_argv);])],
433 [AC_MSG_RESULT([yes])
434 DPDKLIB_FOUND=true],
435 [AC_MSG_RESULT([no])
252e1e57
IS		 436 AC_MSG_ERROR(m4_normalize([
437 Could not find DPDK library in default search path, update
438 PKG_CONFIG_PATH for pkg-config to find the .pc file in
439 non-standard location]))
e2f37511 440 ])
c1223b11 441
95626395
TG		 442 CFLAGS="$ovs_save_CFLAGS"
443 LDFLAGS="$ovs_save_LDFLAGS"
252e1e57
IS		 444 # Stripping out possible instruction set specific configuration that DPDK
445 # forces in pkg-config since this could override user-specified options.
446 # It's enough to have -mssse3 to build with DPDK headers.
447 DPDK_INCLUDE=$(echo "$DPDK_INCLUDE" | sed 's/-march=[[^ ]]*//g')
96195c09 448 OVS_CFLAGS="$OVS_CFLAGS $DPDK_INCLUDE"
ab2a3154 449 OVS_ENABLE_OPTION([-mssse3])
8a9562d2 450
3c94676c 451 # DPDK pmd drivers are not linked unless --whole-archive is used.
d7310583
DDP		 452 #
453 # This happens because the rest of the DPDK code doesn't use any symbol in
454 # the pmd driver objects, and the drivers register themselves using an
455 # __attribute__((constructor)) function.
252e1e57
IS		 456 # Wrap the DPDK libraries inside a single -Wl directive
457 # after comma separation to prevent autotools from reordering them.
458 DPDK_vswitchd_LDFLAGS=$(echo "$DPDK_LIB"| tr -s ' ' ',' | sed 's/-Wl,//g')
459 # Replace -pthread with -lpthread for LD and remove the last extra comma.
460 DPDK_vswitchd_LDFLAGS=$(echo "$DPDK_vswitchd_LDFLAGS"| sed 's/,$//' | \
461 sed 's/-pthread/-lpthread/g')
462 # Prepend "-Wl,".
463 DPDK_vswitchd_LDFLAGS="-Wl,$DPDK_vswitchd_LDFLAGS"
464
9475dfeb 465 AC_SUBST([DPDK_vswitchd_LDFLAGS])
8a9562d2 466 AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.])
8a9562d2
PS		 467 fi
468
40b5ea86 469 AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true)
8a9562d2
PS		 470])
471
8828e5c7 472dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])
064af421
BP		 473dnl
474dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH.
8828e5c7
BP		 475dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with
476dnl <REGEX> translated to uppercase.
064af421
BP		 477AC_DEFUN([OVS_GREP_IFELSE], [
478 AC_MSG_CHECKING([whether $2 matches in $1])
7507ec48
JG		 479 if test -f $1; then
480 grep '$2' $1 >/dev/null 2>&1
481 status=$?
482 case $status in
997d327d 483 0)
7507ec48 484 AC_MSG_RESULT([yes])
8828e5c7 485 m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3])
7507ec48 486 ;;
997d327d 487 1)
7507ec48
JG		 488 AC_MSG_RESULT([no])
489 $4
490 ;;
997d327d 491 *)
7507ec48
JG		 492 AC_MSG_ERROR([grep exited with status $status])
493 ;;
494 esac
495 else
496 AC_MSG_RESULT([file not found])
497 $4
498 fi
064af421
BP		 499])
500
13dd4a97
JS		 501dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH])
502dnl
503dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the
504dnl structure definition. If this is successful, runs IF-MATCH, otherwise
505dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
506dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX>
507dnl translated to uppercase.
508AC_DEFUN([OVS_FIND_FIELD_IFELSE], [
509 AC_MSG_CHECKING([whether $2 has member $3 in $1])
510 if test -f $1; then
83a27884 511 awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null
13dd4a97
JS		 512 status=$?
513 case $status in
514 0)
515 AC_MSG_RESULT([yes])
516 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
517 ;;
518 1)
519 AC_MSG_RESULT([no])
520 $5
521 ;;
522 *)
523 AC_MSG_ERROR([grep exited with status $status])
524 ;;
525 esac
526 else
527 AC_MSG_RESULT([file not found])
528 $5
529 fi
530])
531
71ce9edd
JR		 532dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH])
533dnl
534dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within
535dnl the function signature starting from the line matching FUNCTION
536dnl and ending with the line containing the closing parenthesis. If
537dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If
538dnl IF-MATCH is empty then it defines to
539dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and
540dnl <REGEX> translated to uppercase.
541AC_DEFUN([OVS_FIND_PARAM_IFELSE], [
542 AC_MSG_CHECKING([whether $2 has parameter $3 in $1])
543 if test -f $1; then
544 awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null
545 status=$?
546 case $status in
547 0)
548 AC_MSG_RESULT([yes])
549 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
550 ;;
551 1)
552 AC_MSG_RESULT([no])
553 $5
554 ;;
555 *)
556 AC_MSG_ERROR([grep exited with status $status])
557 ;;
558 esac
559 else
560 AC_MSG_RESULT([file not found])
561 $5
562 fi
563])
564
82b7e6d1
GR		 565dnl OVS_FIND_OP_PARAM_IFELSE(FILE, OP, REGEX, [IF-MATCH], [IF-NO-MATCH])
566dnl
567dnl Looks for OP in FILE. If it is found, greps for REGEX within the
568dnl OP definition. If this is successful, runs IF-MATCH, otherwise
569dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to
570dnl OVS_DEFINE(HAVE_<OP>_WITH_<REGEX>), with <OP> and <REGEX>
571dnl translated to uppercase.
572AC_DEFUN([OVS_FIND_OP_PARAM_IFELSE], [
573 AC_MSG_CHECKING([whether $2 has member $3 in $1])
574 if test -f $1; then
575 awk '/$2[[ \t\n]]*\)\(/,/;/' $1 2>/dev/null | grep '$3' >/dev/null
576 status=$?
577 case $status in
578 0)
579 AC_MSG_RESULT([yes])
580 m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4])
581 ;;
582 1)
583 AC_MSG_RESULT([no])
584 $5
585 ;;
586 *)
587 AC_MSG_ERROR([grep exited with status $status])
588 ;;
589 esac
590 else
591 AC_MSG_RESULT([file not found])
592 $5
593 fi
594])
595
064af421
BP		 596dnl OVS_DEFINE(NAME)
597dnl
598dnl Defines NAME to 1 in kcompat.h.
599AC_DEFUN([OVS_DEFINE], [
22bcc0e7 600 echo '#define $1 1' >> datapath/linux/kcompat.h.new
064af421
BP		 601])
602
e3438006 603dnl OVS_CHECK_LINUX_COMPAT
064af421 604dnl
8063e095 605dnl Runs various Autoconf checks on the Linux kernel source in
e3438006
BP		 606dnl the directory in $KBUILD.
607AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
22bcc0e7
JG		 608 rm -f datapath/linux/kcompat.h.new
609 mkdir -p datapath/linux
610 : > datapath/linux/kcompat.h.new
4aa13c0c 611
e23775f2
PS		 612 echo '#include <linux/version.h>
613#ifndef RHEL_RELEASE_CODE
614#define RHEL_RELEASE_CODE 0
615#define RHEL_RELEASE_VERSION(a, b) 0
616#endif' >> datapath/linux/kcompat.h.new
617
e3438006 618 OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,],
25fb3596
JG		 619 [OVS_DEFINE([HAVE_CSUM_COPY_DBG])])
620
db1dcb23
DB		 621 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6_get_cookie],
622 [OVS_DEFINE([HAVE_RT6_GET_COOKIE])])
623
33f9c873
GR		 624 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub],
625 [dst_entry])
e23775f2
PS		 626 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net],
627 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])])
5519e384
YHW		 628 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow.*net],
629 [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_FLOW_NET])])
e23775f2 630 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub])
5519e384 631 OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup_flow])
e23775f2 632
e3438006 633 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])
4303ec34 634 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL])
54125dd0 635 OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO])
4aa13c0c 636
8aef057b 637 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [static_branch_unlikely(],
6660a959 638 [OVS_DEFINE([HAVE_UPSTREAM_STATIC_KEY])])
8aef057b
YHW		 639 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h], [DEFINE_STATIC_KEY_FALSE],
640 [OVS_DEFINE([HAVE_DEFINE_STATIC_KEY])])
dca96842
PB		 641 OVS_GREP_IFELSE([$KSRC/include/linux/jump_label.h],
642 [DECLARE_STATIC_KEY_FALSE],
643 [OVS_DEFINE([HAVE_DECLARE_STATIC_KEY])])
6660a959 644
d923a695 645 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random])
e2f3178f 646 OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy])
d923a695 647
e23775f2
PS		 648 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS])
649 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64])
650 OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64])
d923a695 651 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto])
ec96e663 652 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside])
9feb5bda 653 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_hwaccel_clear_tag])
d923a695 654
e3438006 655 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])
46d69d18 656 OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset])
2ea82414
PS		 657 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry],
658 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])])
e23775f2
PS		 659 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net],
660 [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])])
661
13dd4a97
JS		 662 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net],
663 [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])])
39c0ff22
JS		 664 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net],
665 [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])])
0374bcbe
EB		 666 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
667 [ip_do_fragment], [net],
668 [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])])
0643a78b
PS		 669 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h],
670 [ip_local_out], [net],
671 [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])])
672
cfda4537 673 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu])
0f09d6e3
JS		 674
675 OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU],
676 [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])])
06f1a61a 677 OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu])
595e069a
JS		 678 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const],
679 [OVS_DEFINE([HAVE_INET_FRAGS_CONST])])
8f00ece9
JS		 680 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in],
681 [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])])
e0d45da3 682 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting])
ccd0a13b 683 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evictor])
91408ae0
JS		 684 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
685 [frags_work])
d1c390e6
JS		 686 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
687 [rwlock])
e0d45da3
JS		 688 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue],
689 [list_evictor])
38f45380 690 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_lru_move])
6ccf21ca
YHW		 691 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/inet_frag.h],
692 [sub_frag_mem_limit], [struct.netns_frags],
693 [OVS_DEFINE([HAVE_SUB_FRAG_MEM_LIMIT_ARG_STRUCT_NETNS_FRAGS])])
694 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [void.*inet_frags_init],
695 [OVS_DEFINE([HAVE_VOID_INET_FRAGS_INIT])])
401da7b9
JS		 696 OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif],
697 [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])])
8f00ece9 698
f2252c61
PS		 699 dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure.
700 dnl OVS does not really need ipv6 label field, but its presence signifies that
701 dnl the stack has all required ipv6 support.
702 dnl OVS also does not need dst_cache But this dependency allows us to write
703 dnl much cleaner code.
704
3259c4ff
PS		 705 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key],
706 [label],
707 [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h],
708 [iptunnel_pull_offloads],
997d327d 709 [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
e1ededf4
GR		 710 [OVS_GREP_IFELSE([$KSRC/include/net/erspan.h], [erspan_md2],
711 [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])])])
4aa13c0c 712
138df3e5
GR		 713 OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache],
714 [OVS_DEFINE([USE_BUILTIN_DST_CACHE])])
65590144
YHW		 715 OVS_GREP_IFELSE([$KSRC/include/net/mpls.h], [mpls_hdr],
716 [OVS_DEFINE([MPLS_HEADER_IS_L3])])
fdce83a3
PS		 717 OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net],
718 [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])])
aad7cb91 719 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst])
e3438006
BP		 720 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
721 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
722 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu])
3f506f07 723 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level])
42d5dd95 724 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment])
96b82f6d 725 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_gso_error_unwind])
42d5dd95 726 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol])
e23775f2 727 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink])
0a0d9095
PS		 728 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_features_check],
729 [OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])])
f2252c61
PS		 730 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port])
731 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port])
e2e11c89 732 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_udp_tunnel_add])
d1890de5 733 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
8063e095
PS		 734 dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats.
735 dnl So check type of tstats.
736 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats],
737 [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])])
e23775f2
PS		 738 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device],
739 [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])])
a0c9fedc 740 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [skb_csum_hwoffload_help])
e23775f2
PS		 741 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload])
742 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff],
743 [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])])
744 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum])
8ce37339 745 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM])
6ccf21ca
YHW		 746 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
747 [extended])
7efb1e09
PS		 748 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
749 [netdev_master_upper_dev_link], [upper_priv],
750 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])])
b7ab7316
YHW		 751 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
752 [netdev_master_upper_dev_link_rh],
753 [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_RH])])
754
6c0bf091
JW		 755 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
756 [max_mtu])
39ca3383
YHW		 757 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops_extended],
758 [ndo_change_mtu], [OVS_DEFINE([HAVE_RHEL7_MAX_MTU])])
140c8971
PM		 759 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
760 [dev_change_flags], [extack],
761 [OVS_DEFINE([HAVE_DEV_CHANGE_FLAGS_TAKES_EXTACK])])
e23775f2
PS		 762
763 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state])
4fdec898
FW		 764 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state],
765 [struct net ], [OVS_DEFINE([HAVE_NF_HOOK_STATE_NET])])
e23775f2 766 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook])
cd7330d0
PS		 767 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops],
768 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])])
0643a78b
PS		 769 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv],
770 [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])])
771 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
772 [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])])
179fccce 773 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [NFPROTO_INET])
d42fb06d 774 OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [CONFIG_NF_NAT_NEEDED])
179fccce 775
0643a78b 776
e4e04c3b 777 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops],
2b64e8fc 778 [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])])
e2f3178f 779
6d9b6937
JR		 780 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
781 [nf_conn], [struct timer_list[[ \t]]*timeout],
782 [OVS_DEFINE([HAVE_NF_CONN_TIMER])])
783 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
784 [nf_ct_delete(], [OVS_DEFINE([HAVE_NF_CT_DELETE])])
785
71ce9edd
JR		 786 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
787 [nf_ct_tmpl_alloc], [nf_conntrack_zone],
057772cf 788 [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])])
71ce9edd
JR		 789 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
790 [nf_ct_get_tuplepr], [struct.net],
fa67f8e0 791 [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])])
dfa791b2
FW		 792 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
793 [nf_ct_set])
56ec5593
JS		 794 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
795 [nf_ct_is_untracked])
c1d728db
YHW		 796 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h],
797 [nf_ct_invert_tuplepr])
ac9cd0d2
JS		 798 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h],
799 [nf_ct_zone_init])
eca4cde0
YS		 800 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
801 [net_ns_get])
459064e7
JS		 802 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
803 [nf_connlabels_get])
7f2ab8cd
JR		 804 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
805 [nf_connlabels_get], [int bit],
806 [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])])
9f04eabe
JR		 807 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h],
808 [nf_conn_labels], [words])
0d330e42
JR		 809 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add])
810 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding])
fdec3c17 811 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_range2])
9ea96dce
YHW		 812 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_packet],
813 [OVS_DEFINE([HAVE_UPSTREAM_NF_NAT])])
0d330e42 814 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust])
74496432 815 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h], [nf_conncount_gc_list],
4bfdefea
YS		 816 [OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_count.h],
817 [int nf_conncount_add],
818 [], [OVS_DEFINE([HAVE_UPSTREAM_NF_CONNCOUNT])])])
2fc8309b
YHW		 819 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [nf_ct_set_timeout])
820 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h], [struct nf_ct_timeout],
821 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT])])
822 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_timeout.h],
823 [\(*nf_ct_timeout_find_get_hook\)], [net],
824 [OVS_DEFINE([HAVE_NF_CT_TIMEOUT_FIND_GET_HOOK_NET])])
057772cf 825
9048ab60
GR		 826 OVS_GREP_IFELSE([$KSRC/include/linux/random.h],
827 [prandom_u32[[\(]]],
828 [OVS_DEFINE([HAVE_PRANDOM_U32])])
f000c879 829 OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max])
b8d42f87
IM		 830 OVS_GREP_IFELSE([$KSRC/include/linux/prandom.h],
831 [prandom_u32[[\(]]],
832 [OVS_DEFINE([HAVE_PRANDOM_U32])])
833 OVS_GREP_IFELSE([$KSRC/include/linux/prandom.h], [prandom_u32_max])
4aa13c0c 834
e23775f2
PS		 835 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net])
836 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type])
837 OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net],
838 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])])
839 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t])
840
e3438006
BP		 841 OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
842 [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
cf6cb3a2 843 [rcu_read_lock_held])])
8fa52250 844 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held])
3d10a0c8 845 OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [net_rwsem])
8b7cc752
YS		 846 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
847 [rtnl_create_link], [extack],
848 [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_TAKES_EXTACK])])
efcae7df 849 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [nf_reset_ct])
997d327d 850
6a33828d
BP		 851 # Check for the proto_data_valid member in struct sk_buff. The [^@]
852 # is necessary because some versions of this header remove the
853 # member but retain the kerneldoc comment that describes it (which
854 # starts with @). The brackets must be doubled because of m4
855 # quoting rules.
e3438006 856 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
6a33828d 857 [OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
ccb75a28 858 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset])
e23775f2 859 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol])
f2252c61 860 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type])
c1eb2500 861 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset])
d23239a2 862 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list])
60c4904f 863 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash])
5640cbd8
JG		 864 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash],
865 [OVS_DEFINE([HAVE_U16_RXHASH])])
e3438006 866 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
85444c3f 867 [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
997d327d 868 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
8828e5c7 869 [skb_copy_from_linear_data_offset])
b9c15df9
PS		 870 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
871 [skb_reset_tail_pointer])
e3438006 872 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head])
e3438006 873 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro],
4aa13c0c 874 [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
e3438006 875 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
6c4ea27c 876 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
da4bbeb7 877 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list])
0aa6fda7 878 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc])
d923a695 879 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])
dc0d542d 880 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone])
1edc458d 881 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags])
c253c2e3
MC		 882 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(],
883 [OVS_DEFINE([HAVE_SKB_GET_HASH])])
e2f3178f 884 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash])
705e9260
PS		 885 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(],
886 [OVS_DEFINE([HAVE_SKB_ZEROCOPY])])
5cce04b6 887 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable])
97894370 888 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop])
a27c454e 889 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_vlan_pop])
97894370 890 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push])
c6e13fcc 891 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4])
ea3acd7a 892 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum])
73daf51a 893 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [lco_csum])
d3c313c1 894 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_nfct])
0ace0a26 895 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_put_zero])
4aa13c0c 896
e3438006 897 OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum],
e215ebca 898 [OVS_DEFINE([HAVE_CSUM_TYPES])])
8dbe1f9f
PS		 899 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum],
900 [OVS_DEFINE([HAVE_CSUM_TYPES])])
4aa13c0c 901
e3438006
BP		 902 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4])
903 OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
4aa13c0c 904
0d03e51c 905 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk])
1dba1690 906 OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy])
0d03e51c 907
114fce23
SG		 908 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners])
909 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset])
14002a59 910 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
6233a1bd
TG		 911 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock],
912 [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])])
c623ba49 913 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse])
13dd4a97
JS		 914 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family],
915 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])])
f1e9590e 916 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_validate_flags])
0643a78b
PS		 917 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h],
918 [genl_notify], [net],
919 [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])])
920
13dd4a97
JS		 921
922 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h],
923 [genl_multicast_group], [id])
fdce83a3 924 OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr])
13dd4a97 925
cc1d0dea 926 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
e23775f2 927 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads])
8abaa53c 928 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH])
e23775f2 929 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk])
2d3ef70b 930 OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash])
a94ebc39
JS		 931 OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst],
932 [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])])
213e1f54
JS		 933 OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock],
934 [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])])
935
91b37647 936 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit])
e3438006 937 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
42d5dd95
TG		 938 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
939 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
940 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64])
dd693f9b 941 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr])
e3438006 942 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
0fcc086d 943 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last])
09c33996 944 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_nest_start_noflag])
6dbd98e6
SH		 945 OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err],
946 [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])])
15702dc9
JB		 947 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netlink.h],
948 [nla_parse], [netlink_ext_ack],
949 [OVS_DEFINE([HAVE_NETLINK_EXT_ACK])])
4aa13c0c 950
c4e976db
JG		 951 OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum])
952
1f649f1c 953 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto])
17e3889f 954 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag])
e23775f2 955 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol])
5c3f23fe 956 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [skb_vlan_tagged])
ca6da1b1 957 OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [eth_type_vlan])
431488e6 958
aadd6ae9
JS		 959 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/dst_metadata.h],
960 [metadata_dst_alloc], [metadata_type])
961
09f27436
JG		 962 OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq])
963
3174a818
TG		 964 OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata],
965 [OVS_DEFINE([HAVE_VXLAN_METADATA])])
f6a0c895 966 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port],
13dd4a97
JS		 967 [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net],
968 [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])])
969 OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check])
e23775f2 970 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete])
06aeda48
PS		 971 OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads],
972 [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])])
d7e58913
PS		 973 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg],
974 [gro_receive])
e23775f2
PS		 975
976 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df],
f6a0c895
TG		 977 [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])])
978 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN],
979 [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])])
f285d3e7 980
b7ebebcd
PS		 981 OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx])
982 OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx])
c970aa4e
PS		 983 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/protocol.h],
984 [udp_add_offload], [net],
985 [OVS_DEFINE([HAVE_UDP_ADD_OFFLOAD_TAKES_NET])])
802d12b6
GR		 986 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h],
987 [nf_defrag_ipv6_enable], [net],
988 [OVS_DEFINE([HAVE_DEFRAG_ENABLE_TAKES_NET])])
bef862bc
GR		 989 OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [family_list],
990 [OVS_DEFINE([HAVE_GENL_FAMILY_LIST])])
7f15e8dd
GR		 991 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
992 [needs_free_netdev],
993 [OVS_DEFINE([HAVE_NEEDS_FREE_NETDEV])])
14365643
GR		 994 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_dev], [cfg],
995 [OVS_DEFINE([HAVE_VXLAN_DEV_CFG])])
ac8e3c6d 996 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
35fc0638
GR		 997 [nf_conntrack_helper_put],
998 [OVS_DEFINE(HAVE_NF_CONNTRACK_HELPER_PUT)])
4c941202
YHW		 999 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
1000 [nf_nat_helper_try_module_get])
1001 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
1002 [nf_nat_helper_put])
f90e29c9 1003 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],[[[[:space:]]]SKB_GSO_UDP[[[:space:]]]],
ad283644 1004 [OVS_DEFINE([HAVE_SKB_GSO_UDP])])
db1dcb23
DB		 1005 OVS_GREP_IFELSE([$KSRC/include/net/dst.h],[DST_NOCACHE],
1006 [OVS_DEFINE([HAVE_DST_NOCACHE])])
6b51641a
GR		 1007 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_link_ops],
1008 [extack],
1009 [OVS_DEFINE([HAVE_EXT_ACK_IN_RTNL_LINKOPS])])
a5220693
GR		 1010 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
1011 [list],
1012 [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])])
c0802634
EG		 1013 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netfilter/nf_conntrack_common.h],
1014 [IP_CT_UNTRACKED])
36d3520b
GR		 1015 OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h],
1016 [netdev_master_upper_dev_link], [extack],
1017 [OVS_DEFINE([HAVE_UPPER_DEV_LINK_EXTACK])])
a61fbfa4
GR		 1018 OVS_GREP_IFELSE([$KSRC/include/linux/compiler_types.h],
1019 [__LINUX_COMPILER_TYPES_H],
1020 [OVS_DEFINE([HAVE_LINUX_COMPILER_TYPES_H])])
6deeb55a
AB		 1021 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
1022 [ktime_get_ts64],
1023 [OVS_DEFINE([HAVE_KTIME_GET_TS64])])
b147f2e9
JB		 1024 OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h],
1025 [EXPORT_SYMBOL_GPL(peernet2id_alloc)],
1026 [OVS_DEFINE([HAVE_PEERNET2ID_ALLOC])])
1cb57039
AZ		 1027 OVS_GREP_IFELSE([$KSRC/include/linux/timekeeping.h],
1028 [ktime_get_ns],
1029 [OVS_DEFINE([HAVE_KTIME_GET_NS])])
b3e647ca
GR		 1030 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h],
1031 frag_percpu_counter_batch[],
1032 [OVS_DEFINE([HAVE_FRAG_PERCPU_COUNTER_BATCH])])
8e53509c
WT		 1033 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1034 [null_compute_pseudo],
1035 [OVS_DEFINE([HAVE_NULL_COMPUTE_PSEUDO])])
1036 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1037 [__skb_checksum_convert],
1038 [OVS_DEFINE([HAVE_SKB_CHECKSUM_CONVERT])])
1039 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device],
1040 [max_mtu],
1041 [OVS_DEFINE([HAVE_NET_DEVICE_MAX_MTU])])
8e53509c
WT		 1042 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip6_tunnel.h], [__ip6_tnl_parm],
1043 [erspan_ver],
1044 [OVS_DEFINE([HAVE_IP6_TNL_PARM_ERSPAN_VER])])
1045 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1046 [SKB_GSO_IPXIP6],
1047 [OVS_DEFINE([HAVE_SKB_GSO_IPXIP6])])
1048 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ipv6.h],
1049 [ip6_make_flowlabel], [fl6],
1050 [OVS_DEFINE([HAVE_IP6_MAKE_FLOWLABEL_FL6])])
1051 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ipv6.h], [netns_sysctl_ipv6],
1052 [auto_flowlabels],
1053 [OVS_DEFINE([HAVE_NETNS_SYSCTL_IPV6_AUTO_FLOWLABELS])])
1054 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1055 [netif_keep_dst],
1056 [OVS_DEFINE([HAVE_NETIF_KEEP_DST])])
1057 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netdevice.h], [net_device_ops],
1058 [ndo_get_iflink],
1059 [OVS_DEFINE([HAVE_NDO_GET_IFLINK])])
1060 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1061 [skb_set_inner_ipproto],
1062 [OVS_DEFINE([HAVE_SKB_SET_INNER_IPPROTO])])
1063 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1064 [tunnel_encap_types],
1065 [OVS_DEFINE([HAVE_TUNNEL_ENCAP_TYPES])])
1066 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1067 [IFLA_IPTUN_ENCAP_TYPE],
1068 [OVS_DEFINE([HAVE_IFLA_IPTUN_ENCAP_TYPE])])
1069 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1070 [IFLA_IPTUN_COLLECT_METADATA],
1071 [OVS_DEFINE([HAVE_IFLA_IPTUN_COLLECT_METADATA])])
e1ededf4
GR		 1072 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1073 [IFLA_GRE_ENCAP_DPORT])
1074 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1075 [IFLA_GRE_COLLECT_METADATA])
1076 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1077 [IFLA_GRE_IGNORE_DF])
1078 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1079 [IFLA_GRE_FWMARK])
1080 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1081 [IFLA_GRE_ERSPAN_INDEX])
1082 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1083 [IFLA_GRE_ERSPAN_HWID])
436d36db
GR		 1084 OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_tunnel.h],
1085 [IFLA_IPTUN_FWMARK])
10f24236
GR		 1086 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1087 [csum_valid],
1088 [OVS_DEFINE([HAVE_SKBUFF_CSUM_VALID])])
9feb5bda
MM		 1089 OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/skbuff.h], [sk_buff],
1090 [vlan_present],
1091 [OVS_DEFINE([HAVE_SKBUFF_VLAN_PRESENT])])
10f24236
GR		 1092 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1093 [skb_checksum_simple_validate])
44a629b5
GR		 1094 OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h],
1095 [void.*ndo_get_stats64],
1096 [OVS_DEFINE([HAVE_VOID_NDO_GET_STATS64])])
7f63d830
YS		 1097 OVS_GREP_IFELSE([$KSRC/include/linux/timer.h], [init_timer_deferrable],
1098 [OVS_DEFINE([HAVE_INIT_TIMER_DEFERRABLE])])
3f3b76f9
GR		 1099 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip_tunnels.h],
1100 [ip_tunnel_info_opts_set], [flags],
1101 [OVS_DEFINE([HAVE_IP_TUNNEL_INFO_OPTS_SET_FLAGS])])
4a90b277
GR		 1102 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags],
1103 [rnd],
1104 [OVS_DEFINE([HAVE_INET_FRAGS_RND])])
f7246940
GS		 1105 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [__LINUX_OVERFLOW_H],
1106 [OVS_DEFINE([HAVE_OVERFLOW_H])])
8f6d230f
YS		 1107 OVS_GREP_IFELSE([$KSRC/include/linux/overflow.h], [struct_size],
1108 [OVS_DEFINE([HAVE_STRUCT_SIZE])])
f7246940
GS		 1109 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_array],
1110 [OVS_DEFINE([HAVE_KVMALLOC_ARRAY])])
1111 OVS_GREP_IFELSE([$KSRC/include/linux/mm.h], [kvmalloc_node],
1112 [OVS_DEFINE([HAVE_KVMALLOC_NODE])])
945d6d1c
YS		 1113 OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_l3proto.h],
1114 [nf_conntrack_l3proto],
1115 [OVS_DEFINE([HAVE_NF_CONNTRACK_L3PROATO_H])])
4fdec898
FW		 1116 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_core.h],
1117 [nf_conntrack_in], [nf_hook_state],
1118 [OVS_DEFINE([HAVE_NF_CONNTRACK_IN_TAKES_NF_HOOK_STATE])])
7857a9b4
FW		 1119 OVS_GREP_IFELSE([$KSRC/include/net/ipv6_frag.h], [IP6_DEFRAG_CONNTRACK_IN],
1120 [OVS_DEFINE([HAVE_IPV6_FRAG_H])])
7685ce31
GF		 1121 OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_helper.h],
1122 [nf_ct_helper_ext_add], [nf_conntrack_helper],
1123 [OVS_DEFINE([HAVE_NF_CT_HELPER_EXT_ADD_TAKES_HELPER])])
6d97adee
GR		 1124 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_calc_hlen],
1125 [OVS_DEFINE([HAVE_GRE_CALC_HLEN])])
1126 OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [ip_gre_calc_hlen],
1127 [OVS_DEFINE([HAVE_IP_GRE_CALC_HLEN])])
4bfdefea
YS		 1128 OVS_GREP_IFELSE([$KSRC/include/linux/rbtree.h], [rb_link_node_rcu],
1129 [OVS_DEFINE([HAVE_RBTREE_RB_LINK_NODE_RCU])])
6634cc8a
GR		 1130 OVS_GREP_IFELSE([$KSRC/include/net/dst_ops.h], [bool confirm_neigh],
1131 [OVS_DEFINE([HAVE_DST_OPS_CONFIRM_NEIGH])])
f77d85b1
GR		 1132 OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [fqdir],
1133 [OVS_DEFINE([HAVE_INET_FRAG_FQDIR])])
2ef0f1c2
JB		 1134 OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], [genl_ops],
1135 [policy],
1136 [OVS_DEFINE([HAVE_GENL_OPS_POLICY])])
6db0f72d
JB		 1137 OVS_GREP_IFELSE([$KSRC/include/net/netlink.h],
1138 [nla_parse_deprecated_strict],
1139 [OVS_DEFINE([HAVE_NLA_PARSE_DEPRECATED_STRICT])])
82b7e6d1
GR		 1140 OVS_FIND_OP_PARAM_IFELSE([$KSRC/include/net/rtnetlink.h],
1141 [validate], [extack],
1142 [OVS_DEFINE([HAVE_RTNLOP_VALIDATE_WITH_EXTACK])])
9ba57fc7
HZ		 1143 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h],
1144 [__skb_set_hash])
1145 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [sw_hash])
1146 OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash_raw])
21a719d6 1147
22bcc0e7
JG		 1148 if cmp -s datapath/linux/kcompat.h.new \
1149 datapath/linux/kcompat.h >/dev/null 2>&1; then
1150 rm datapath/linux/kcompat.h.new
064af421 1151 else
22bcc0e7 1152 mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h
064af421
BP		 1153 fi
1154])
1155
f6eb6b20 1156dnl Checks for net/if_dl.h.
d30e714c 1157dnl
d23fa2ed
YT		 1158dnl (We use this as a proxy for checking whether we're building on FreeBSD
1159dnl or NetBSD.)
9360d9b7
EM		 1160AC_DEFUN([OVS_CHECK_IF_DL],
1161 [AC_CHECK_HEADER([net/if_dl.h],
1162 [HAVE_IF_DL=yes],
1163 [HAVE_IF_DL=no])
1164 AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes])
1165 if test "$HAVE_IF_DL" = yes; then
1166 AC_DEFINE([HAVE_IF_DL], [1],
1167 [Define to 1 if net/if_dl.h is available.])
d30e714c 1168
d23fa2ed 1169 # On these platforms we use libpcap to access network devices.
d30e714c 1170 AC_SEARCH_LIBS([pcap_open_live], [pcap])
9360d9b7
EM		 1171 fi])
1172
e50097d2
BP		 1173dnl Checks for buggy strtok_r.
1174dnl
1175dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling
1176dnl with optimization that can cause segfaults:
1177dnl
1178dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
1179AC_DEFUN([OVS_CHECK_STRTOK_R],
1180 [AC_CACHE_CHECK(
1181 [whether strtok_r macro segfaults on some inputs],
1182 [ovs_cv_strtok_r_bug],
1183 [AC_RUN_IFELSE(
1184 [AC_LANG_PROGRAM([#include <stdio.h>
1185 #include <string.h>
1186 ],
416e7132
BP		 1187 [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
1188 /* Assume bug is present, because relatively minor
1189 changes in compiler settings (e.g. optimization
1190 level) can make it crop up. */
1191 return 1;
1192 #else
1193 char string[] = ":::";
e50097d2
BP		 1194 char *save_ptr = (char *) 0xc0ffee;
1195 char *token1, *token2;
1196 token1 = strtok_r(string, ":", &save_ptr);
1197 token2 = strtok_r(NULL, ":", &save_ptr);
5819a7cd 1198 freopen ("/dev/null", "w", stdout);
e50097d2
BP		 1199 printf ("%s %s\n", token1, token2);
1200 return 0;
416e7132 1201 #endif
e50097d2
BP		 1202 ]])],
1203 [ovs_cv_strtok_r_bug=no],
1204 [ovs_cv_strtok_r_bug=yes],
1205 [ovs_cv_strtok_r_bug=yes])])
1206 if test $ovs_cv_strtok_r_bug = yes; then
1207 AC_DEFINE([HAVE_STRTOK_R_BUG], [1],
1208 [Define if strtok_r macro segfaults on some inputs])
1209 fi
1210])
1211
064af421
BP		 1212dnl ----------------------------------------------------------------------
1213dnl These macros are from GNU PSPP, with the following original license:
1214dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
1215dnl This file is free software; the Free Software Foundation
1216dnl gives unlimited permission to copy and/or distribute it,
1217dnl with or without modifications, as long as this notice is preserved.
1218
50194820 1219AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl
726af752 1220 m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-= ], [__])])dnl
064af421
BP		 1221 AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name],
1222 [ovs_save_CFLAGS="$CFLAGS"
50194820
BP		 1223 dnl Include -Werror in the compiler options, because without -Werror
1224 dnl clang's GCC-compatible compiler driver does not return a failure
1225 dnl exit status even though it complains about options it does not
1226 dnl understand.
c2deac54
YT		 1227 dnl
1228 dnl Also, check stderr as gcc exits with status 0 for options
1229 dnl rejected at getopt level.
1230 dnl % touch /tmp/a.c
1231 dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $?
1232 dnl gcc: unrecognized option '-Qunused-arguments'
1233 dnl 0
1234 dnl %
4c1e8cb9
BP		 1235 dnl
1236 dnl In addition, GCC does not complain about a -Wno-<foo> option that
1237 dnl it does not understand, unless it has another error to report, so
1238 dnl instead of testing for -Wno-<foo>, test for the positive version.
1239 CFLAGS="$CFLAGS $WERROR m4_bpatsubst([$1], [-Wno-], [-W])"
37f4615e
BP		 1240 AC_COMPILE_IFELSE(
1241 [AC_LANG_SOURCE([int x;])],
1242 [if test -s conftest.err && grep "unrecognized option" conftest.err
1243 then
1244 ovs_cv_name[]=no
1245 else
1246 ovs_cv_name[]=yes
1247 fi],
1248 [ovs_cv_name[]=no])
064af421
BP		 1249 CFLAGS="$ovs_save_CFLAGS"])
1250 if test $ovs_cv_name = yes; then
83f6c050 1251 m4_if([$2], [], [:], [$2])
064af421
BP		 1252 else
1253 m4_if([$3], [], [:], [$3])
1254 fi
1255])
1256
50194820
BP		 1257dnl OVS_CHECK_WERROR
1258dnl
1259dnl Check whether the C compiler accepts -Werror.
1260dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string.
1261AC_DEFUN([OVS_CHECK_WERROR],
1262 [WERROR=
1263 _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])])
1264
1265dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED])
1266dnl Check whether the given C compiler OPTION is accepted.
1267dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED.
1268AC_DEFUN([OVS_CHECK_CC_OPTION],
1269 [AC_REQUIRE([OVS_CHECK_WERROR])
1270 _OVS_CHECK_CC_OPTION([$1], [$2], [$3])])
1271
064af421
BP		 1272dnl OVS_ENABLE_OPTION([OPTION])
1273dnl Check whether the given C compiler OPTION is accepted.
d161c099 1274dnl If so, add it to WARNING_FLAGS.
064af421
BP		 1275dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement])
1276AC_DEFUN([OVS_ENABLE_OPTION],
d161c099
BP		 1277 [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"])
1278 AC_SUBST([WARNING_FLAGS])])
c72e245a
BP		 1279
1280dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL])
1281dnl Check whether the given C compiler OPTION is accepted.
1282dnl If so, enable the given Automake CONDITIONAL.
1283
1284dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
1285AC_DEFUN([OVS_CONDITIONAL_CC_OPTION],
1286 [OVS_CHECK_CC_OPTION(
1287 [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no])
1288 AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])])
064af421 1289dnl ----------------------------------------------------------------------
ed2d4f6a
BP		 1290
1291dnl Check for too-old XenServer.
1292AC_DEFUN([OVS_CHECK_XENSERVER_VERSION],
1293 [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion],
1294 [if test -e /etc/redhat-release; then
1295 ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release`
1296 fi
1297 if test -z "$ovs_cv_xsversion"; then
1298 ovs_cv_xsversion=none
1299 fi])
1300 case $ovs_cv_xsversion in
1301 none)
1302 ;;
1303
1304 [[1-9]][[0-9]]* | dnl XenServer 10 or later
1305 [[6-9]]* | dnl XenServer 6 or later
1306 5.[[7-9]]* | dnl XenServer 5.7 or later
1307 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later
1308 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later
1309 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later
1310 ;;
1311
1312 *)
1313 AC_MSG_ERROR([This appears to be XenServer $ovs_cv_xsversion, but only XenServer 5.6.100 or later is supported. (If you are really using a supported version of XenServer, you may override this error message by specifying 'ovs_cv_xsversion=5.6.100' on the "configure" command line.)])
1314 ;;
1315 esac])
29d935d6 1316
643c0c34
BP		 1317dnl OVS_CHECK_SPARSE_TARGET
1318dnl
1319dnl The "cgcc" script from "sparse" isn't very good at detecting the
1320dnl target for which the code is being built. This helps it out.
1321AC_DEFUN([OVS_CHECK_SPARSE_TARGET],
1322 [AC_CACHE_CHECK(
1323 [target hint for cgcc],
1324 [ac_cv_sparse_target],
1325 [AS_CASE([`$CC -dumpmachine 2>/dev/null`],
1326 [i?86-* | athlon-*], [ac_cv_sparse_target=x86],
1327 [x86_64-*], [ac_cv_sparse_target=x86_64],
1328 [ac_cv_sparse_target=other])])
1329 AS_CASE([$ac_cv_sparse_target],
0cdd5b13
BP		 1330 [x86], [SPARSEFLAGS= CGCCFLAGS="-target=i86 -target=host_os_specs"],
1331 [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS="-target=x86_64 -target=host_os_specs"],
643c0c34 1332 [SPARSEFLAGS= CGCCFLAGS=])
346c6538 1333
e5273084 1334 dnl Get the default defines for vector instructions from compiler to
346c6538
IM		 1335 dnl allow "sparse" correctly check the same code that will be built.
1336 dnl Required for checking DPDK headers.
1337 AC_MSG_CHECKING([vector options for cgcc])
1338 VECTOR=$($CC -dM -E - < /dev/null | grep -E "MMX|SSE|AVX" | \
1339 cut -c 9- | sed 's/ /=/' | sed 's/^/-D/' | tr '\n' ' ')
1340 AC_MSG_RESULT([$VECTOR])
1341 CGCCFLAGS="$CGCCFLAGS $VECTOR"
1342
643c0c34
BP		 1343 AC_SUBST([SPARSEFLAGS])
1344 AC_SUBST([CGCCFLAGS])])
1345
32e96ab7
AZ		 1346dnl OVS_SPARSE_EXTRA_INCLUDES
1347dnl
1348dnl The cgcc script from "sparse" does not search gcc's default
1349dnl search path. Get the default search path from GCC and pass
1350dnl them to sparse.
1351AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES],
1352 AC_SUBST([SPARSE_EXTRA_INCLUDES],
1353 [`$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 ' ' `] ))
1354
29d935d6
BP		 1355dnl OVS_ENABLE_SPARSE
1356AC_DEFUN([OVS_ENABLE_SPARSE],
643c0c34 1357 [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET])
32e96ab7 1358 AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES])
372d58a4
BP		 1359 : ${SPARSE=sparse}
1360 AC_SUBST([SPARSE])
1361 AC_CONFIG_COMMANDS_PRE(
d4042a70
BP		 1362 [CC='$(if $(C:0=),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) $(SPARSE_WERROR) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')'])
1363
1364 AC_ARG_ENABLE(
1365 [sparse],
1366 [AC_HELP_STRING([--enable-sparse], [Run "sparse" by default])],
1367 [], [enable_sparse=no])
1368 AM_CONDITIONAL([ENABLE_SPARSE_BY_DEFAULT], [test $enable_sparse = yes])])
8a8cd0ac 1369
0eaaacac
FL		 1370dnl OVS_CTAGS_IDENTIFIERS
1371dnl
9ed9df77
FL		 1372dnl ctags ignores symbols with extras identifiers. This is a list of
1373dnl specially handled identifiers to be ignored. [ctags(1) -I <list>].
0eaaacac
FL		 1374AC_DEFUN([OVS_CTAGS_IDENTIFIERS],
1375 AC_SUBST([OVS_CTAGS_IDENTIFIERS_LIST],
9ed9df77 1376 ["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 1377
8a8cd0ac
BP		 1378dnl OVS_PTHREAD_SET_NAME
1379dnl
1380dnl This checks for three known variants of pthreads functions for setting
1381dnl the name of the current thread:
1382dnl
1383dnl glibc: int pthread_setname_np(pthread_t, const char *name);
1384dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg);
1385dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name);
1386dnl
1387dnl For glibc and FreeBSD, the arguments are just a thread and its name. For
1388dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to
1389dnl provide to it.
1390dnl
1391dnl This macro defines:
1392dnl
1393dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP
1394dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP
1395dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP
1396AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME],
1397 [AC_CHECK_FUNCS([pthread_set_name_np])
1398 if test $ac_cv_func_pthread_set_name_np != yes; then
1399 AC_CACHE_CHECK(
1400 [for pthread_setname_np() variant],
1401 [ovs_cv_pthread_setname_np],
1402 [AC_LINK_IFELSE(
a0903134 1403 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac 1404 ], [pthread_setname_np(pthread_self(), "name");])],
a0903134 1405 [ovs_cv_pthread_setname_np=glibc],
8a8cd0ac 1406 [AC_LINK_IFELSE(
a0903134 1407 [AC_LANG_PROGRAM([#include <pthread.h>
8a8cd0ac
BP		 1408], [pthread_setname_np(pthread_self(), "%s", "name");])],
1409 [ovs_cv_pthread_setname_np=netbsd],
a0903134 1410 [ovs_cv_pthread_setname_np=none])])])
8a8cd0ac
BP		 1411 case $ovs_cv_pthread_setname_np in # (
1412 glibc)
a0903134
YT		 1413 AC_DEFINE(
1414 [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1],
1415 [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).])
1416 ;; # (
8a8cd0ac 1417 netbsd)
a0903134
YT		 1418 AC_DEFINE(
1419 [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1],
1420 [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).])
1421 ;;
8a8cd0ac
BP		 1422 esac
1423 fi])
5020f5f0
BP		 1424
1425dnl OVS_CHECK_LINUX_HOST.
1426dnl
1427dnl Checks whether we're building for a Linux host, based on the presence of
1428dnl the __linux__ preprocessor symbol, and sets up an Automake conditional
1429dnl LINUX based on the result.
1430AC_DEFUN([OVS_CHECK_LINUX_HOST],
1431 [AC_CACHE_CHECK(
1432 [whether __linux__ is defined],
1433 [ovs_cv_linux],
1434 [AC_COMPILE_IFELSE(
1435 [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])],
1436 [ovs_cv_linux=true],
1437 [ovs_cv_linux=false])])
1438 AM_CONDITIONAL([LINUX], [$ovs_cv_linux])])
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