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064af421 BP |
1 | # -*- autoconf -*- |
2 | ||
416e7132 | 3 | # Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 |
17 | dnl OVS_ENABLE_WERROR |
18 | AC_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" |
a64e37a1 BP |
26 | fi])]) |
27 | ||
e3438006 | 28 | dnl OVS_CHECK_LINUX |
064af421 BP |
29 | dnl |
30 | dnl Configure linux kernel source tree | |
e3438006 | 31 | AC_DEFUN([OVS_CHECK_LINUX], [ |
8a2d6596 BP |
32 | AC_ARG_WITH([linux], |
33 | [AC_HELP_STRING([--with-linux=/path/to/linux], | |
34 | [Specify the Linux kernel build directory])]) | |
35 | AC_ARG_WITH([linux-source], | |
36 | [AC_HELP_STRING([--with-linux-source=/path/to/linux-source], | |
37 | [Specify the Linux kernel source directory | |
a0903134 YT |
38 | (usually figured out automatically from build |
39 | directory)])]) | |
8a2d6596 BP |
40 | |
41 | # Deprecated equivalents to --with-linux, --with-linux-source. | |
42 | AC_ARG_WITH([l26]) | |
43 | AC_ARG_WITH([l26-source]) | |
44 | ||
45 | if test X"$with_linux" != X; then | |
46 | KBUILD=$with_linux | |
47 | elif test X"$with_l26" != X; then | |
48 | KBUILD=$with_l26 | |
49 | AC_MSG_WARN([--with-l26 is deprecated, please use --with-linux instead]) | |
50 | else | |
51 | KBUILD= | |
52 | fi | |
53 | ||
54 | if test X"$KBUILD" != X; then | |
55 | if test X"$with_linux_source" != X; then | |
56 | KSRC=$with_linux_source | |
57 | elif test X"$with_l26_source" != X; then | |
58 | KSRC=$with_l26_source | |
59 | AC_MSG_WARN([--with-l26-source is deprecated, please use --with-linux-source instead]) | |
0a89c170 BP |
60 | else |
61 | KSRC= | |
8a2d6596 BP |
62 | fi |
63 | elif test X"$with_linux_source" != X || test X"$with_l26_source" != X; then | |
64 | AC_MSG_ERROR([Linux source directory may not be specified without Linux build directory]) | |
65 | fi | |
66 | ||
e3438006 BP |
67 | if test -n "$KBUILD"; then |
68 | KBUILD=`eval echo "$KBUILD"` | |
69 | case $KBUILD in | |
0b6d72fc | 70 | /*) ;; |
e3438006 | 71 | *) KBUILD=`pwd`/$KBUILD ;; |
0b6d72fc | 72 | esac |
064af421 | 73 | |
7c9e113b BP |
74 | # The build directory is what the user provided. |
75 | # Make sure that it exists. | |
8a2d6596 | 76 | AC_MSG_CHECKING([for Linux build directory]) |
e3438006 | 77 | if test -d "$KBUILD"; then |
a0903134 YT |
78 | AC_MSG_RESULT([$KBUILD]) |
79 | AC_SUBST(KBUILD) | |
064af421 | 80 | else |
a0903134 YT |
81 | AC_MSG_RESULT([no]) |
82 | AC_ERROR([source dir $KBUILD doesn't exist]) | |
064af421 BP |
83 | fi |
84 | ||
7c9e113b | 85 | # Debian breaks kernel headers into "source" header and "build" headers. |
e3438006 | 86 | # We want the source headers, but $KBUILD gives us the "build" headers. |
7c9e113b | 87 | # Use heuristics to find the source headers. |
8a2d6596 | 88 | AC_MSG_CHECKING([for Linux source directory]) |
e3438006 BP |
89 | if test -n "$KSRC"; then |
90 | KSRC=`eval echo "$KSRC"` | |
91 | case $KSRC in | |
f5fb5de6 | 92 | /*) ;; |
e3438006 | 93 | *) KSRC=`pwd`/$KSRC ;; |
b57f675c | 94 | esac |
e3438006 | 95 | if test ! -e $KSRC/include/linux/kernel.h; then |
53319f95 | 96 | AC_MSG_ERROR([$KSRC is not a kernel source directory]) |
f5fb5de6 BP |
97 | fi |
98 | else | |
e3438006 BP |
99 | KSRC=$KBUILD |
100 | if test ! -e $KSRC/include/linux/kernel.h; then | |
fe0731b1 BP |
101 | # Debian kernel build Makefiles tend to include a line of the form: |
102 | # MAKEARGS := -C /usr/src/linux-headers-3.2.0-1-common O=/usr/src/linux-headers-3.2.0-1-486 | |
103 | # First try to extract the source directory from this line. | |
104 | KSRC=`sed -n 's/.*-C \([[^ ]]*\).*/\1/p' "$KBUILD"/Makefile` | |
105 | if test ! -e "$KSRC"/include/linux/kernel.h; then | |
106 | # Didn't work. Fall back to name-based heuristics that used to work. | |
107 | case `echo "$KBUILD" | sed 's,/*$,,'` in # ( | |
108 | */build) | |
109 | KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'` | |
110 | ;; # ( | |
111 | *) | |
112 | KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'` | |
113 | ;; | |
114 | esac | |
115 | fi | |
f5fb5de6 | 116 | fi |
fe0731b1 | 117 | if test ! -e "$KSRC"/include/linux/kernel.h; then |
8a2d6596 | 118 | AC_MSG_ERROR([cannot find source directory (please use --with-linux-source)]) |
7c9e113b BP |
119 | fi |
120 | fi | |
e3438006 | 121 | AC_MSG_RESULT([$KSRC]) |
7c9e113b BP |
122 | |
123 | AC_MSG_CHECKING([for kernel version]) | |
71fe9970 | 124 | version=`sed -n 's/^VERSION = //p' "$KSRC/Makefile"` |
e3438006 BP |
125 | patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"` |
126 | sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"` | |
71fe9970 | 127 | if test X"$version" = X || test X"$patchlevel" = X; then |
7c9e113b | 128 | AC_ERROR([cannot determine kernel version]) |
71fe9970 BP |
129 | elif test X"$sublevel" = X; then |
130 | kversion=$version.$patchlevel | |
131 | else | |
132 | kversion=$version.$patchlevel.$sublevel | |
7c9e113b | 133 | fi |
71fe9970 BP |
134 | AC_MSG_RESULT([$kversion]) |
135 | ||
3afcde43 | 136 | if test "$version" -ge 4; then |
06aeda48 | 137 | if test "$version" = 4 && test "$patchlevel" -le 6; then |
3afcde43 | 138 | : # Linux 4.x |
d76aabea | 139 | else |
06aeda48 | 140 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 4.6.x is not supported (please refer to the FAQ for advice)]) |
d76aabea | 141 | fi |
8063e095 | 142 | elif test "$version" = 3 && test "$patchlevel" -ge 10; then |
3afcde43 | 143 | : # Linux 3.x |
71fe9970 | 144 | else |
8063e095 | 145 | AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version 3.10 or later is required]) |
064af421 | 146 | fi |
2520f452 IY |
147 | if (test ! -e "$KBUILD"/include/linux/version.h && \ |
148 | test ! -e "$KBUILD"/include/generated/uapi/linux/version.h)|| \ | |
e3438006 BP |
149 | (test ! -e "$KBUILD"/include/linux/autoconf.h && \ |
150 | test ! -e "$KBUILD"/include/generated/autoconf.h); then | |
a0903134 | 151 | AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured]) |
064af421 | 152 | fi |
e3438006 | 153 | OVS_CHECK_LINUX_COMPAT |
064af421 | 154 | fi |
e3438006 | 155 | AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD") |
064af421 BP |
156 | ]) |
157 | ||
8a9562d2 PS |
158 | dnl OVS_CHECK_DPDK |
159 | dnl | |
160 | dnl Configure DPDK source tree | |
161 | AC_DEFUN([OVS_CHECK_DPDK], [ | |
162 | AC_ARG_WITH([dpdk], | |
163 | [AC_HELP_STRING([--with-dpdk=/path/to/dpdk], | |
4c16ee48 MV |
164 | [Specify the DPDK build directory])], |
165 | [have_dpdk=true]) | |
8a9562d2 | 166 | |
40b5ea86 | 167 | AC_MSG_CHECKING([whether dpdk datapath is enabled]) |
4c16ee48 | 168 | if test "$have_dpdk" != true || test "$with_dpdk" = no; then |
40b5ea86 BB |
169 | AC_MSG_RESULT([no]) |
170 | DPDKLIB_FOUND=false | |
171 | else | |
172 | AC_MSG_RESULT([yes]) | |
173 | case "$with_dpdk" in | |
174 | yes) | |
175 | DPDK_AUTO_DISCOVER="true" | |
176 | DPDK_INCLUDE="/usr/local/include/dpdk -I/usr/include/dpdk" | |
177 | ;; | |
178 | *) | |
179 | DPDK_AUTO_DISCOVER="false" | |
180 | DPDK_INCLUDE="$with_dpdk/include" | |
181 | # If 'with_dpdk' is passed install directory, point to headers | |
182 | # installed in $DESTDIR/$prefix/include/dpdk | |
183 | AC_CHECK_FILE([$DPDK_INCLUDE/rte_config.h], [], | |
184 | [AC_CHECK_FILE([$DPDK_INCLUDE/dpdk/rte_config.h], | |
185 | [DPDK_INCLUDE=$DPDK_INCLUDE/dpdk], [])]) | |
186 | DPDK_LIB_DIR="$with_dpdk/lib" | |
187 | ;; | |
188 | esac | |
8a9562d2 | 189 | |
18f777b2 | 190 | DPDK_LIB="-ldpdk" |
10d01ad2 | 191 | DPDK_EXTRA_LIB="" |
8a9562d2 | 192 | |
95626395 TG |
193 | ovs_save_CFLAGS="$CFLAGS" |
194 | ovs_save_LDFLAGS="$LDFLAGS" | |
c1223b11 | 195 | CFLAGS="$CFLAGS -I$DPDK_INCLUDE" |
40b5ea86 BB |
196 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
197 | LDFLAGS="$LDFLAGS -L${DPDK_LIB_DIR}" | |
198 | fi | |
199 | ||
200 | AC_COMPILE_IFELSE([ | |
201 | AC_LANG_PROGRAM( | |
202 | [ | |
203 | #include <rte_config.h> | |
204 | #if !RTE_LIBRTE_VHOST_USER | |
205 | #error | |
206 | #endif | |
207 | ], []) | |
208 | ], [], | |
209 | [AC_DEFINE([VHOST_CUSE], [1], [DPDK vhost-cuse support enabled, vhost-user disabled.]) | |
210 | DPDK_EXTRA_LIB="-lfuse"]) | |
c1223b11 | 211 | |
16dfb8fa BB |
212 | AC_SEARCH_LIBS([get_mempolicy],[numa],[],[AC_MSG_ERROR([unable to find libnuma, install the dependency package])]) |
213 | ||
c1223b11 DDP |
214 | # On some systems we have to add -ldl to link with dpdk |
215 | # | |
216 | # This code, at first, tries to link without -ldl (""), | |
217 | # then adds it and tries again. | |
218 | # Before each attempt the search cache must be unset, | |
219 | # otherwise autoconf will stick with the old result | |
220 | ||
40b5ea86 | 221 | DPDKLIB_FOUND=false |
c1223b11 DDP |
222 | save_LIBS=$LIBS |
223 | for extras in "" "-ldl"; do | |
db8f13b0 | 224 | LIBS="$DPDK_LIB $extras $save_LIBS $DPDK_EXTRA_LIB -lnuma" |
c1223b11 DDP |
225 | AC_LINK_IFELSE( |
226 | [AC_LANG_PROGRAM([#include <rte_config.h> | |
227 | #include <rte_eal.h>], | |
228 | [int rte_argc; char ** rte_argv; | |
229 | rte_eal_init(rte_argc, rte_argv);])], | |
40b5ea86 BB |
230 | [DPDKLIB_FOUND=true]) |
231 | if $DPDKLIB_FOUND; then | |
c1223b11 DDP |
232 | break |
233 | fi | |
234 | done | |
40b5ea86 BB |
235 | |
236 | # If linking unsuccessful | |
237 | if test "$DPDKLIB_FOUND" = "false" ; then | |
238 | if $DPDK_AUTO_DISCOVER; then | |
239 | AC_MSG_ERROR([Could not find DPDK library in default search path, Use --with-dpdk to specify the DPDK library installed in non-standard location]) | |
240 | else | |
241 | AC_MSG_ERROR([Could not find DPDK libraries in $DPDK_LIB_DIR]) | |
242 | fi | |
c1223b11 | 243 | fi |
95626395 TG |
244 | CFLAGS="$ovs_save_CFLAGS" |
245 | LDFLAGS="$ovs_save_LDFLAGS" | |
40b5ea86 BB |
246 | if test "$DPDK_AUTO_DISCOVER" = "false"; then |
247 | OVS_LDFLAGS="$OVS_LDFLAGS -L$DPDK_LIB_DIR" | |
248 | fi | |
ab2a3154 IM |
249 | OVS_CFLAGS="$OVS_CFLAGS -I$DPDK_INCLUDE" |
250 | OVS_ENABLE_OPTION([-mssse3]) | |
8a9562d2 | 251 | |
3c94676c | 252 | # DPDK pmd drivers are not linked unless --whole-archive is used. |
d7310583 DDP |
253 | # |
254 | # This happens because the rest of the DPDK code doesn't use any symbol in | |
255 | # the pmd driver objects, and the drivers register themselves using an | |
256 | # __attribute__((constructor)) function. | |
257 | # | |
258 | # These options are specified inside a single -Wl directive to prevent | |
259 | # autotools from reordering them. | |
3c94676c | 260 | DPDK_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-archive |
9475dfeb | 261 | AC_SUBST([DPDK_vswitchd_LDFLAGS]) |
8a9562d2 | 262 | AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.]) |
8a9562d2 PS |
263 | fi |
264 | ||
40b5ea86 | 265 | AM_CONDITIONAL([DPDK_NETDEV], test "$DPDKLIB_FOUND" = true) |
8a9562d2 PS |
266 | ]) |
267 | ||
8828e5c7 | 268 | dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
064af421 BP |
269 | dnl |
270 | dnl Greps FILE for REGEX. If it matches, runs IF-MATCH, otherwise IF-NO-MATCH. | |
8828e5c7 BP |
271 | dnl If IF-MATCH is empty then it defines to OVS_DEFINE(HAVE_<REGEX>), with |
272 | dnl <REGEX> translated to uppercase. | |
064af421 BP |
273 | AC_DEFUN([OVS_GREP_IFELSE], [ |
274 | AC_MSG_CHECKING([whether $2 matches in $1]) | |
7507ec48 JG |
275 | if test -f $1; then |
276 | grep '$2' $1 >/dev/null 2>&1 | |
277 | status=$? | |
278 | case $status in | |
279 | 0) | |
280 | AC_MSG_RESULT([yes]) | |
8828e5c7 | 281 | m4_if([$3], [], [OVS_DEFINE([HAVE_]m4_toupper([$2]))], [$3]) |
7507ec48 JG |
282 | ;; |
283 | 1) | |
284 | AC_MSG_RESULT([no]) | |
285 | $4 | |
286 | ;; | |
287 | *) | |
288 | AC_MSG_ERROR([grep exited with status $status]) | |
289 | ;; | |
290 | esac | |
291 | else | |
292 | AC_MSG_RESULT([file not found]) | |
293 | $4 | |
294 | fi | |
064af421 BP |
295 | ]) |
296 | ||
13dd4a97 JS |
297 | dnl OVS_FIND_FIELD_IFELSE(FILE, STRUCTURE, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
298 | dnl | |
299 | dnl Looks for STRUCTURE in FILE. If it is found, greps for REGEX within the | |
300 | dnl structure definition. If this is successful, runs IF-MATCH, otherwise | |
301 | dnl IF_NO_MATCH. If IF-MATCH is empty then it defines to | |
302 | dnl OVS_DEFINE(HAVE_<STRUCTURE>_WITH_<REGEX>), with <STRUCTURE> and <REGEX> | |
303 | dnl translated to uppercase. | |
304 | AC_DEFUN([OVS_FIND_FIELD_IFELSE], [ | |
305 | AC_MSG_CHECKING([whether $2 has member $3 in $1]) | |
306 | if test -f $1; then | |
83a27884 | 307 | awk '/$2.{/,/^}/' $1 2>/dev/null | grep '$3' >/dev/null |
13dd4a97 JS |
308 | status=$? |
309 | case $status in | |
310 | 0) | |
311 | AC_MSG_RESULT([yes]) | |
312 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
313 | ;; | |
314 | 1) | |
315 | AC_MSG_RESULT([no]) | |
316 | $5 | |
317 | ;; | |
318 | *) | |
319 | AC_MSG_ERROR([grep exited with status $status]) | |
320 | ;; | |
321 | esac | |
322 | else | |
323 | AC_MSG_RESULT([file not found]) | |
324 | $5 | |
325 | fi | |
326 | ]) | |
327 | ||
71ce9edd JR |
328 | dnl OVS_FIND_PARAM_IFELSE(FILE, FUNCTION, REGEX, [IF-MATCH], [IF-NO-MATCH]) |
329 | dnl | |
330 | dnl Looks for FUNCTION in FILE. If it is found, greps for REGEX within | |
331 | dnl the function signature starting from the line matching FUNCTION | |
332 | dnl and ending with the line containing the closing parenthesis. If | |
333 | dnl this is successful, runs IF-MATCH, otherwise IF_NO_MATCH. If | |
334 | dnl IF-MATCH is empty then it defines to | |
335 | dnl OVS_DEFINE(HAVE_<FUNCTION>_WITH_<REGEX>), with <FUNCTION> and | |
336 | dnl <REGEX> translated to uppercase. | |
337 | AC_DEFUN([OVS_FIND_PARAM_IFELSE], [ | |
338 | AC_MSG_CHECKING([whether $2 has parameter $3 in $1]) | |
339 | if test -f $1; then | |
340 | awk '/$2[[ \t\n]]*\(/,/\)/' $1 2>/dev/null | grep '$3' >/dev/null | |
341 | status=$? | |
342 | case $status in | |
343 | 0) | |
344 | AC_MSG_RESULT([yes]) | |
345 | m4_if([$4], [], [OVS_DEFINE([HAVE_]m4_toupper([$2])[_WITH_]m4_toupper([$3]))], [$4]) | |
346 | ;; | |
347 | 1) | |
348 | AC_MSG_RESULT([no]) | |
349 | $5 | |
350 | ;; | |
351 | *) | |
352 | AC_MSG_ERROR([grep exited with status $status]) | |
353 | ;; | |
354 | esac | |
355 | else | |
356 | AC_MSG_RESULT([file not found]) | |
357 | $5 | |
358 | fi | |
359 | ]) | |
360 | ||
064af421 BP |
361 | dnl OVS_DEFINE(NAME) |
362 | dnl | |
363 | dnl Defines NAME to 1 in kcompat.h. | |
364 | AC_DEFUN([OVS_DEFINE], [ | |
22bcc0e7 | 365 | echo '#define $1 1' >> datapath/linux/kcompat.h.new |
064af421 BP |
366 | ]) |
367 | ||
e3438006 | 368 | dnl OVS_CHECK_LINUX_COMPAT |
064af421 | 369 | dnl |
8063e095 | 370 | dnl Runs various Autoconf checks on the Linux kernel source in |
e3438006 BP |
371 | dnl the directory in $KBUILD. |
372 | AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [ | |
22bcc0e7 JG |
373 | rm -f datapath/linux/kcompat.h.new |
374 | mkdir -p datapath/linux | |
375 | : > datapath/linux/kcompat.h.new | |
4aa13c0c | 376 | |
e23775f2 PS |
377 | echo '#include <linux/version.h> |
378 | #ifndef RHEL_RELEASE_CODE | |
379 | #define RHEL_RELEASE_CODE 0 | |
380 | #define RHEL_RELEASE_VERSION(a, b) 0 | |
381 | #endif' >> datapath/linux/kcompat.h.new | |
382 | ||
e3438006 | 383 | OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,], |
25fb3596 JG |
384 | [OVS_DEFINE([HAVE_CSUM_COPY_DBG])]) |
385 | ||
e23775f2 PS |
386 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_dst_lookup.*net], |
387 | [OVS_DEFINE([HAVE_IPV6_DST_LOOKUP_NET])]) | |
388 | OVS_GREP_IFELSE([$KSRC/include/net/addrconf.h], [ipv6_stub]) | |
389 | ||
e3438006 | 390 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST]) |
4303ec34 | 391 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [IS_ERR_OR_NULL]) |
54125dd0 | 392 | OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [PTR_ERR_OR_ZERO]) |
4aa13c0c | 393 | |
d923a695 | 394 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random]) |
e2f3178f | 395 | OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [ether_addr_copy]) |
d923a695 | 396 | |
e23775f2 PS |
397 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [IFLA_GENEVE_TOS]) |
398 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/if_link.h], [rtnl_link_stats64]) | |
399 | OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64]) | |
d923a695 | 400 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto]) |
ec96e663 | 401 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_hwaccel_push_inside]) |
d923a695 | 402 | |
e3438006 | 403 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast]) |
46d69d18 | 404 | OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [proto_ports_offset]) |
2ea82414 PS |
405 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*dst_entry], |
406 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_DST_ENTRY])]) | |
e23775f2 PS |
407 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [__ip_select_ident.*net], |
408 | [OVS_DEFINE([HAVE_IP_SELECT_IDENT_USING_NET])]) | |
409 | ||
13dd4a97 JS |
410 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [inet_get_local_port_range.*net], |
411 | [OVS_DEFINE([HAVE_INET_GET_LOCAL_PORT_RANGE_USING_NET])]) | |
39c0ff22 JS |
412 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_defrag.*net], |
413 | [OVS_DEFINE([HAVE_IP_DEFRAG_TAKES_NET])]) | |
0374bcbe EB |
414 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
415 | [ip_do_fragment], [net], | |
416 | [OVS_DEFINE([HAVE_IP_DO_FRAGMENT_TAKES_NET])]) | |
0643a78b PS |
417 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/ip.h], |
418 | [ip_local_out], [net], | |
419 | [OVS_DEFINE([HAVE_IP_LOCAL_OUT_TAKES_NET])]) | |
420 | ||
cfda4537 | 421 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [ip_skb_dst_mtu]) |
0f09d6e3 JS |
422 | |
423 | OVS_GREP_IFELSE([$KSRC/include/net/ip.h], [IPSKB_FRAG_PMTU], | |
424 | [OVS_DEFINE([HAVE_CORRECT_MRU_HANDLING])]) | |
06f1a61a | 425 | OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], [__ip_tunnel_change_mtu]) |
595e069a JS |
426 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [hashfn.*const], |
427 | [OVS_DEFINE([HAVE_INET_FRAGS_CONST])]) | |
8f00ece9 JS |
428 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [last_in], |
429 | [OVS_DEFINE([HAVE_INET_FRAGS_LAST_IN])]) | |
e0d45da3 | 430 | OVS_GREP_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_evicting]) |
91408ae0 JS |
431 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
432 | [frags_work]) | |
d1c390e6 JS |
433 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frags], |
434 | [rwlock]) | |
e0d45da3 JS |
435 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/inet_frag.h], [inet_frag_queue], |
436 | [list_evictor]) | |
401da7b9 JS |
437 | OVS_GREP_IFELSE([$KSRC/include/net/inetpeer.h], [vif], |
438 | [OVS_DEFINE([HAVE_INETPEER_VIF_SUPPORT])]) | |
8f00ece9 | 439 | |
f2252c61 PS |
440 | dnl Check for dst_cache and ipv6 lable to use backported tunnel infrastructure. |
441 | dnl OVS does not really need ipv6 label field, but its presence signifies that | |
442 | dnl the stack has all required ipv6 support. | |
443 | dnl OVS also does not need dst_cache But this dependency allows us to write | |
444 | dnl much cleaner code. | |
445 | ||
3259c4ff PS |
446 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/ip_tunnels.h], [ip_tunnel_key], |
447 | [label], | |
448 | [OVS_GREP_IFELSE([$KSRC/include/net/ip_tunnels.h], | |
449 | [iptunnel_pull_offloads], | |
f2252c61 PS |
450 | [OVS_GREP_IFELSE([$KSRC/include/net/dst_cache.h], [dst_cache], |
451 | [OVS_DEFINE([USE_UPSTREAM_TUNNEL])])])]) | |
4aa13c0c | 452 | |
fdce83a3 PS |
453 | OVS_GREP_IFELSE([$KSRC/include/linux/net.h], [sock_create_kern.*net], |
454 | [OVS_DEFINE([HAVE_SOCK_CREATE_KERN_NET])]) | |
aad7cb91 | 455 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_fill_metadata_dst]) |
e3438006 BP |
456 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro]) |
457 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats]) | |
458 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu]) | |
3f506f07 | 459 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_recursion_level]) |
42d5dd95 TG |
460 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [__skb_gso_segment]) |
461 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [can_checksum_protocol]) | |
e23775f2 | 462 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_get_iflink]) |
f2252c61 PS |
463 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port]) |
464 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port]) | |
d1890de5 | 465 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t]) |
8063e095 PS |
466 | dnl Ubuntu kernel 3.13 has defined this struct but not used for netdev->tstats. |
467 | dnl So check type of tstats. | |
468 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [pcpu_sw_netstats.*tstats], | |
469 | [OVS_DEFINE([HAVE_PCPU_SW_NETSTATS])]) | |
e23775f2 PS |
470 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netif_needs_gso.*net_device], |
471 | [OVS_DEFINE([HAVE_NETIF_NEEDS_GSO_NETDEV])]) | |
472 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload]) | |
473 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [udp_offload.*uoff], | |
474 | [OVS_DEFINE([HAVE_UDP_OFFLOAD_ARG_UOFF])]) | |
475 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [gro_remcsum]) | |
8ce37339 | 476 | OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [IFF_PHONY_HEADROOM]) |
7efb1e09 PS |
477 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netdevice.h], |
478 | [netdev_master_upper_dev_link], [upper_priv], | |
479 | [OVS_DEFINE([HAVE_NETDEV_MASTER_UPPER_DEV_LINK_PRIV])]) | |
e23775f2 PS |
480 | |
481 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_state]) | |
482 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_register_net_hook]) | |
cd7330d0 PS |
483 | OVS_GREP_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn.*nf_hook_ops], |
484 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_OPS])]) | |
0643a78b PS |
485 | OVS_FIND_PARAM_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hookfn], [priv], |
486 | [OVS_DEFINE([HAVE_NF_HOOKFN_ARG_PRIV])]) | |
487 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops], | |
488 | [owner], [OVS_DEFINE([HAVE_NF_HOOKS_OPS_OWNER])]) | |
489 | ||
e4e04c3b | 490 | OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter_ipv6.h], [nf_ipv6_ops], |
2b64e8fc | 491 | [fragment.*sock], [OVS_DEFINE([HAVE_NF_IPV6_OPS_FRAGMENT])]) |
e2f3178f | 492 | |
71ce9edd JR |
493 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
494 | [nf_ct_tmpl_alloc], [nf_conntrack_zone], | |
057772cf | 495 | [OVS_DEFINE([HAVE_NF_CT_TMPL_ALLOC_TAKES_STRUCT_ZONE])]) |
71ce9edd JR |
496 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack.h], |
497 | [nf_ct_get_tuplepr], [struct.net], | |
fa67f8e0 | 498 | [OVS_DEFINE([HAVE_NF_CT_GET_TUPLEPR_TAKES_STRUCT_NET])]) |
ac9cd0d2 JS |
499 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_zones.h], |
500 | [nf_ct_zone_init]) | |
459064e7 JS |
501 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
502 | [nf_connlabels_get]) | |
7f2ab8cd JR |
503 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_labels.h], |
504 | [nf_connlabels_get], [int bit], | |
505 | [OVS_DEFINE([HAVE_NF_CONNLABELS_GET_TAKES_BIT])]) | |
34c3c2b7 JS |
506 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h], |
507 | [nf_ct_frag6_consume_orig]) | |
508 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/ipv6/nf_defrag_ipv6.h], | |
509 | [nf_ct_frag6_output]) | |
0d330e42 JR |
510 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_ct_nat_ext_add]) |
511 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_nat.h], [nf_nat_alloc_null_binding]) | |
512 | OVS_GREP_IFELSE([$KSRC/include/net/netfilter/nf_conntrack_seqadj.h], [nf_ct_seq_adjust]) | |
057772cf | 513 | |
e2f3178f | 514 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32]) |
f000c879 | 515 | OVS_GREP_IFELSE([$KSRC/include/linux/random.h], [prandom_u32_max]) |
4aa13c0c | 516 | |
e23775f2 PS |
517 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [get_link_net]) |
518 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [name_assign_type]) | |
519 | OVS_GREP_IFELSE([$KSRC/include/net/rtnetlink.h], [rtnl_create_link.*src_net], | |
520 | [OVS_DEFINE([HAVE_RTNL_CREATE_LINK_SRC_NET])]) | |
521 | OVS_GREP_IFELSE([$KSRC/include/net/net_namespace.h], [possible_net_t]) | |
522 | ||
e3438006 BP |
523 | OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [], |
524 | [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], | |
cf6cb3a2 | 525 | [rcu_read_lock_held])]) |
8fa52250 | 526 | OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h], [lockdep_rtnl_is_held]) |
cf6cb3a2 | 527 | |
6a33828d BP |
528 | # Check for the proto_data_valid member in struct sk_buff. The [^@] |
529 | # is necessary because some versions of this header remove the | |
530 | # member but retain the kerneldoc comment that describes it (which | |
531 | # starts with @). The brackets must be doubled because of m4 | |
532 | # quoting rules. | |
e3438006 | 533 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid], |
6a33828d | 534 | [OVS_DEFINE([HAVE_PROTO_DATA_VALID])]) |
ccb75a28 | 535 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_checksum_start_offset]) |
e23775f2 | 536 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol]) |
f2252c61 | 537 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [inner_protocol_type]) |
c1eb2500 | 538 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_inner_transport_offset]) |
d23239a2 | 539 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [kfree_skb_list]) |
e23775f2 PS |
540 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_scrub_packet.*xnet], |
541 | [OVS_DEFINE([HAVE_SKB_SCRUB_PACKET_XNET])]) | |
60c4904f | 542 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [rxhash]) |
5640cbd8 JG |
543 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u16.*rxhash], |
544 | [OVS_DEFINE([HAVE_U16_RXHASH])]) | |
e3438006 | 545 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(], |
85444c3f | 546 | [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])]) |
e3438006 | 547 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
8828e5c7 | 548 | [skb_copy_from_linear_data_offset]) |
b9c15df9 PS |
549 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], |
550 | [skb_reset_tail_pointer]) | |
e3438006 | 551 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head]) |
e3438006 | 552 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro], |
4aa13c0c | 553 | [OVS_DEFINE([HAVE_SKB_WARN_LRO])]) |
e3438006 | 554 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb]) |
6c4ea27c | 555 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page]) |
da4bbeb7 | 556 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_has_frag_list]) |
0aa6fda7 | 557 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [__skb_fill_page_desc]) |
d923a695 | 558 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len]) |
dc0d542d | 559 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_unclone]) |
1edc458d | 560 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_orphan_frags]) |
c253c2e3 MC |
561 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_get_hash(], |
562 | [OVS_DEFINE([HAVE_SKB_GET_HASH])]) | |
e2f3178f | 563 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash]) |
705e9260 PS |
564 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [int.skb_zerocopy(], |
565 | [OVS_DEFINE([HAVE_SKB_ZEROCOPY])]) | |
75e93287 FL |
566 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [u8.*l4_rxhash], |
567 | [OVS_DEFINE([HAVE_L4_RXHASH])]) | |
5cce04b6 | 568 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_ensure_writable]) |
97894370 TG |
569 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_pop]) |
570 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_vlan_push]) | |
c6e13fcc | 571 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_clear_hash_if_not_l4]) |
ea3acd7a | 572 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_postpush_rcsum]) |
4aa13c0c | 573 | |
e3438006 | 574 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool], |
4aa13c0c | 575 | [OVS_DEFINE([HAVE_BOOL_TYPE])]) |
e3438006 | 576 | OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum], |
e215ebca | 577 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) |
8dbe1f9f PS |
578 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/types.h], [__wsum], |
579 | [OVS_DEFINE([HAVE_CSUM_TYPES])]) | |
4aa13c0c | 580 | |
e3438006 BP |
581 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4]) |
582 | OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold]) | |
4aa13c0c | 583 | |
0d03e51c | 584 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [dst_discard_sk]) |
1dba1690 | 585 | OVS_GREP_IFELSE([$KSRC/include/net/dst.h], [__skb_dst_copy]) |
0d03e51c | 586 | |
114fce23 SG |
587 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_has_listeners]) |
588 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [mcgrp_offset]) | |
14002a59 | 589 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops]) |
6233a1bd TG |
590 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [netlink_has_listeners(net->genl_sock], |
591 | [OVS_DEFINE([HAVE_GENL_HAS_LISTENERS_TAKES_NET])]) | |
c623ba49 | 592 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genlmsg_parse]) |
13dd4a97 JS |
593 | OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [genl_notify.*family], |
594 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_FAMILY])]) | |
0643a78b PS |
595 | OVS_FIND_PARAM_IFELSE([$KSRC/include/net/genetlink.h], |
596 | [genl_notify], [net], | |
597 | [OVS_DEFINE([HAVE_GENL_NOTIFY_TAKES_NET])]) | |
598 | ||
13dd4a97 JS |
599 | |
600 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/genetlink.h], | |
601 | [genl_multicast_group], [id]) | |
fdce83a3 | 602 | OVS_GREP_IFELSE([$KSRC/include/net/geneve.h], [geneve_hdr]) |
13dd4a97 | 603 | |
cc1d0dea | 604 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register]) |
e23775f2 | 605 | OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_handle_offloads]) |
8abaa53c | 606 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [IP6_FH_F_SKIP_RH]) |
e23775f2 | 607 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [ip6_local_out_sk]) |
2d3ef70b | 608 | OVS_GREP_IFELSE([$KSRC/include/net/ipv6.h], [__ipv6_addr_jhash]) |
a94ebc39 JS |
609 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_fib.h], [rt6i.*u.dst], |
610 | [OVS_DEFINE([HAVE_RT6INFO_DST_UNION])]) | |
213e1f54 JS |
611 | OVS_GREP_IFELSE([$KSRC/include/net/ip6_route.h], [ip6_frag.*sock], |
612 | [OVS_DEFINE([HAVE_IP_FRAGMENT_TAKES_SOCK])]) | |
613 | ||
91b37647 | 614 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_64bit]) |
e3438006 | 615 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16]) |
42d5dd95 TG |
616 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16]) |
617 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32]) | |
618 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be64]) | |
dd693f9b | 619 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_in_addr]) |
e3438006 | 620 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested]) |
0fcc086d | 621 | OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_is_last]) |
6dbd98e6 SH |
622 | OVS_GREP_IFELSE([$KSRC/include/linux/netlink.h], [void.*netlink_set_err], |
623 | [OVS_DEFINE([HAVE_VOID_NETLINK_SET_ERR])]) | |
4aa13c0c | 624 | |
c4e976db JG |
625 | OVS_GREP_IFELSE([$KSRC/include/net/sctp/checksum.h], [sctp_compute_cksum]) |
626 | ||
e3438006 | 627 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD], |
431488e6 | 628 | [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])]) |
1f649f1c | 629 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_insert_tag_set_proto]) |
17e3889f | 630 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [__vlan_insert_tag]) |
e23775f2 | 631 | OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_get_protocol]) |
431488e6 | 632 | |
09f27436 JG |
633 | OVS_GREP_IFELSE([$KSRC/include/linux/u64_stats_sync.h], [u64_stats_fetch_begin_irq]) |
634 | ||
3174a818 TG |
635 | OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [struct vxlan_metadata], |
636 | [OVS_DEFINE([HAVE_VXLAN_METADATA])]) | |
f6a0c895 | 637 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_flow_src_port], |
13dd4a97 JS |
638 | [OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [inet_get_local_port_range(net], |
639 | [OVS_DEFINE([HAVE_UDP_FLOW_SRC_PORT])])]) | |
640 | OVS_GREP_IFELSE([$KSRC/include/net/udp.h], [udp_v4_check]) | |
e23775f2 | 641 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_gro_complete]) |
06aeda48 PS |
642 | OVS_GREP_IFELSE([$KSRC/include/net/udp_tunnel.h], [sk_buff.*udp_tunnel_handle_offloads], |
643 | [OVS_DEFINE([HAVE_UDP_TUNNEL_HANDLE_OFFLOAD_RET_SKB])]) | |
d7e58913 PS |
644 | OVS_FIND_FIELD_IFELSE([$KSRC/include/net/udp_tunnel.h], [udp_tunnel_sock_cfg], |
645 | [gro_receive]) | |
e23775f2 PS |
646 | |
647 | OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [ignore_df], | |
f6a0c895 TG |
648 | [OVS_DEFINE([HAVE_IGNORE_DF_RENAME])]) |
649 | OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netdevice.h], [NET_NAME_UNKNOWN], | |
650 | [OVS_DEFINE([HAVE_NET_NAME_UNKNOWN])]) | |
f285d3e7 | 651 | |
b7ebebcd PS |
652 | OVS_GREP_IFELSE([$KSRC/include/net/sock.h], [sk_no_check_tx]) |
653 | OVS_GREP_IFELSE([$KSRC/include/linux/udp.h], [no_check6_tx]) | |
21a719d6 FL |
654 | OVS_GREP_IFELSE([$KSRC/include/linux/utsrelease.h], [el6], |
655 | [OVS_DEFINE([HAVE_RHEL6_PER_CPU])]) | |
656 | ||
22bcc0e7 JG |
657 | if cmp -s datapath/linux/kcompat.h.new \ |
658 | datapath/linux/kcompat.h >/dev/null 2>&1; then | |
659 | rm datapath/linux/kcompat.h.new | |
064af421 | 660 | else |
22bcc0e7 | 661 | mv datapath/linux/kcompat.h.new datapath/linux/kcompat.h |
064af421 BP |
662 | fi |
663 | ]) | |
664 | ||
665 | dnl Checks for net/if_packet.h. | |
666 | AC_DEFUN([OVS_CHECK_IF_PACKET], | |
667 | [AC_CHECK_HEADER([net/if_packet.h], | |
668 | [HAVE_IF_PACKET=yes], | |
669 | [HAVE_IF_PACKET=no]) | |
670 | AM_CONDITIONAL([HAVE_IF_PACKET], [test "$HAVE_IF_PACKET" = yes]) | |
671 | if test "$HAVE_IF_PACKET" = yes; then | |
672 | AC_DEFINE([HAVE_IF_PACKET], [1], | |
673 | [Define to 1 if net/if_packet.h is available.]) | |
674 | fi]) | |
675 | ||
f6eb6b20 | 676 | dnl Checks for net/if_dl.h. |
d30e714c | 677 | dnl |
d23fa2ed YT |
678 | dnl (We use this as a proxy for checking whether we're building on FreeBSD |
679 | dnl or NetBSD.) | |
9360d9b7 EM |
680 | AC_DEFUN([OVS_CHECK_IF_DL], |
681 | [AC_CHECK_HEADER([net/if_dl.h], | |
682 | [HAVE_IF_DL=yes], | |
683 | [HAVE_IF_DL=no]) | |
684 | AM_CONDITIONAL([HAVE_IF_DL], [test "$HAVE_IF_DL" = yes]) | |
685 | if test "$HAVE_IF_DL" = yes; then | |
686 | AC_DEFINE([HAVE_IF_DL], [1], | |
687 | [Define to 1 if net/if_dl.h is available.]) | |
d30e714c | 688 | |
d23fa2ed | 689 | # On these platforms we use libpcap to access network devices. |
d30e714c | 690 | AC_SEARCH_LIBS([pcap_open_live], [pcap]) |
9360d9b7 EM |
691 | fi]) |
692 | ||
e50097d2 BP |
693 | dnl Checks for buggy strtok_r. |
694 | dnl | |
695 | dnl Some versions of glibc 2.7 has a bug in strtok_r when compiling | |
696 | dnl with optimization that can cause segfaults: | |
697 | dnl | |
698 | dnl http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614. | |
699 | AC_DEFUN([OVS_CHECK_STRTOK_R], | |
700 | [AC_CACHE_CHECK( | |
701 | [whether strtok_r macro segfaults on some inputs], | |
702 | [ovs_cv_strtok_r_bug], | |
703 | [AC_RUN_IFELSE( | |
704 | [AC_LANG_PROGRAM([#include <stdio.h> | |
705 | #include <string.h> | |
706 | ], | |
416e7132 BP |
707 | [[#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8 |
708 | /* Assume bug is present, because relatively minor | |
709 | changes in compiler settings (e.g. optimization | |
710 | level) can make it crop up. */ | |
711 | return 1; | |
712 | #else | |
713 | char string[] = ":::"; | |
e50097d2 BP |
714 | char *save_ptr = (char *) 0xc0ffee; |
715 | char *token1, *token2; | |
716 | token1 = strtok_r(string, ":", &save_ptr); | |
717 | token2 = strtok_r(NULL, ":", &save_ptr); | |
5819a7cd | 718 | freopen ("/dev/null", "w", stdout); |
e50097d2 BP |
719 | printf ("%s %s\n", token1, token2); |
720 | return 0; | |
416e7132 | 721 | #endif |
e50097d2 BP |
722 | ]])], |
723 | [ovs_cv_strtok_r_bug=no], | |
724 | [ovs_cv_strtok_r_bug=yes], | |
725 | [ovs_cv_strtok_r_bug=yes])]) | |
726 | if test $ovs_cv_strtok_r_bug = yes; then | |
727 | AC_DEFINE([HAVE_STRTOK_R_BUG], [1], | |
728 | [Define if strtok_r macro segfaults on some inputs]) | |
729 | fi | |
730 | ]) | |
731 | ||
064af421 BP |
732 | dnl ---------------------------------------------------------------------- |
733 | dnl These macros are from GNU PSPP, with the following original license: | |
734 | dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. | |
735 | dnl This file is free software; the Free Software Foundation | |
736 | dnl gives unlimited permission to copy and/or distribute it, | |
737 | dnl with or without modifications, as long as this notice is preserved. | |
738 | ||
50194820 | 739 | AC_DEFUN([_OVS_CHECK_CC_OPTION], [dnl |
7c96151e | 740 | m4_define([ovs_cv_name], [ovs_cv_[]m4_translit([$1], [-=], [__])])dnl |
064af421 BP |
741 | AC_CACHE_CHECK([whether $CC accepts $1], [ovs_cv_name], |
742 | [ovs_save_CFLAGS="$CFLAGS" | |
50194820 BP |
743 | dnl Include -Werror in the compiler options, because without -Werror |
744 | dnl clang's GCC-compatible compiler driver does not return a failure | |
745 | dnl exit status even though it complains about options it does not | |
746 | dnl understand. | |
c2deac54 YT |
747 | dnl |
748 | dnl Also, check stderr as gcc exits with status 0 for options | |
749 | dnl rejected at getopt level. | |
750 | dnl % touch /tmp/a.c | |
751 | dnl % gcc -g -c -Werror -Qunused-arguments /tmp/a.c; echo $? | |
752 | dnl gcc: unrecognized option '-Qunused-arguments' | |
753 | dnl 0 | |
754 | dnl % | |
50194820 | 755 | CFLAGS="$CFLAGS $WERROR $1" |
c2deac54 | 756 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,)], [if test -s conftest.err && grep "unrecognized option" conftest.err; then ovs_cv_name[]=no; else ovs_cv_name[]=yes; fi], [ovs_cv_name[]=no]) |
064af421 BP |
757 | CFLAGS="$ovs_save_CFLAGS"]) |
758 | if test $ovs_cv_name = yes; then | |
83f6c050 | 759 | m4_if([$2], [], [:], [$2]) |
064af421 BP |
760 | else |
761 | m4_if([$3], [], [:], [$3]) | |
762 | fi | |
763 | ]) | |
764 | ||
50194820 BP |
765 | dnl OVS_CHECK_WERROR |
766 | dnl | |
767 | dnl Check whether the C compiler accepts -Werror. | |
768 | dnl Sets $WERROR to "-Werror", if so, and otherwise to the empty string. | |
769 | AC_DEFUN([OVS_CHECK_WERROR], | |
770 | [WERROR= | |
771 | _OVS_CHECK_CC_OPTION([-Werror], [WERROR=-Werror])]) | |
772 | ||
773 | dnl OVS_CHECK_CC_OPTION([OPTION], [ACTION-IF-ACCEPTED], [ACTION-IF-REJECTED]) | |
774 | dnl Check whether the given C compiler OPTION is accepted. | |
775 | dnl If so, execute ACTION-IF-ACCEPTED, otherwise ACTION-IF-REJECTED. | |
776 | AC_DEFUN([OVS_CHECK_CC_OPTION], | |
777 | [AC_REQUIRE([OVS_CHECK_WERROR]) | |
778 | _OVS_CHECK_CC_OPTION([$1], [$2], [$3])]) | |
779 | ||
064af421 BP |
780 | dnl OVS_ENABLE_OPTION([OPTION]) |
781 | dnl Check whether the given C compiler OPTION is accepted. | |
d161c099 | 782 | dnl If so, add it to WARNING_FLAGS. |
064af421 BP |
783 | dnl Example: OVS_ENABLE_OPTION([-Wdeclaration-after-statement]) |
784 | AC_DEFUN([OVS_ENABLE_OPTION], | |
d161c099 BP |
785 | [OVS_CHECK_CC_OPTION([$1], [WARNING_FLAGS="$WARNING_FLAGS $1"]) |
786 | AC_SUBST([WARNING_FLAGS])]) | |
c72e245a BP |
787 | |
788 | dnl OVS_CONDITIONAL_CC_OPTION([OPTION], [CONDITIONAL]) | |
789 | dnl Check whether the given C compiler OPTION is accepted. | |
790 | dnl If so, enable the given Automake CONDITIONAL. | |
791 | ||
792 | dnl Example: OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED]) | |
793 | AC_DEFUN([OVS_CONDITIONAL_CC_OPTION], | |
794 | [OVS_CHECK_CC_OPTION( | |
795 | [$1], [ovs_have_cc_option=yes], [ovs_have_cc_option=no]) | |
796 | AM_CONDITIONAL([$2], [test $ovs_have_cc_option = yes])]) | |
064af421 | 797 | dnl ---------------------------------------------------------------------- |
ed2d4f6a BP |
798 | |
799 | dnl Check for too-old XenServer. | |
800 | AC_DEFUN([OVS_CHECK_XENSERVER_VERSION], | |
801 | [AC_CACHE_CHECK([XenServer release], [ovs_cv_xsversion], | |
802 | [if test -e /etc/redhat-release; then | |
803 | ovs_cv_xsversion=`sed -n 's/^XenServer DDK release \([[^-]]*\)-.*/\1/p' /etc/redhat-release` | |
804 | fi | |
805 | if test -z "$ovs_cv_xsversion"; then | |
806 | ovs_cv_xsversion=none | |
807 | fi]) | |
808 | case $ovs_cv_xsversion in | |
809 | none) | |
810 | ;; | |
811 | ||
812 | [[1-9]][[0-9]]* | dnl XenServer 10 or later | |
813 | [[6-9]]* | dnl XenServer 6 or later | |
814 | 5.[[7-9]]* | dnl XenServer 5.7 or later | |
815 | 5.6.[[1-9]][[0-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.1000 or later | |
816 | 5.6.[[2-9]][[0-9]][[0-9]]* | dnl XenServer 5.6.200 or later | |
817 | 5.6.1[[0-9]][[0-9]]) dnl Xenserver 5.6.100 or later | |
818 | ;; | |
819 | ||
820 | *) | |
821 | 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.)]) | |
822 | ;; | |
823 | esac]) | |
29d935d6 BP |
824 | |
825 | dnl OVS_MAKE_HAS_IF([if-true], [if-false]) | |
826 | dnl | |
827 | dnl Checks whether make has the GNU make $(if condition,then,else) extension. | |
828 | dnl Runs 'if-true' if so, 'if-false' otherwise. | |
372d58a4 | 829 | AC_DEFUN([OVS_CHECK_MAKE_IF], |
29d935d6 BP |
830 | [AC_CACHE_CHECK( |
831 | [whether ${MAKE-make} has GNU make \$(if) extension], | |
832 | [ovs_cv_gnu_make_if], | |
833 | [cat <<'EOF' > conftest.mk | |
834 | conftest.out: | |
380f86e4 | 835 | echo $(if x,y,z) > conftest.out |
29d935d6 BP |
836 | .PHONY: all |
837 | EOF | |
838 | rm -f conftest.out | |
839 | AS_ECHO(["$as_me:$LINENO: invoking ${MAKE-make} -f conftest.mk all:"]) >&AS_MESSAGE_LOG_FD 2>&1 | |
840 | ${MAKE-make} -f conftest.mk conftest.out >&AS_MESSAGE_LOG_FD 2>&1 | |
841 | AS_ECHO(["$as_me:$LINENO: conftest.out contains:"]) >&AS_MESSAGE_LOG_FD 2>&1 | |
842 | cat conftest.out >&AS_MESSAGE_LOG_FD 2>&1 | |
843 | result=`cat conftest.out` | |
844 | rm -f conftest.mk conftest.out | |
845 | if test "X$result" = "Xy"; then | |
846 | ovs_cv_gnu_make_if=yes | |
847 | else | |
848 | ovs_cv_gnu_make_if=no | |
372d58a4 | 849 | fi])]) |
29d935d6 | 850 | |
b4e1bf8b BP |
851 | dnl OVS_CHECK_GNU_MAKE |
852 | dnl | |
853 | dnl Checks whether make is GNU make (because Linux kernel Makefiles | |
854 | dnl only work with GNU make). | |
855 | AC_DEFUN([OVS_CHECK_GNU_MAKE], | |
856 | [AC_CACHE_CHECK( | |
857 | [whether ${MAKE-make} is GNU make], | |
858 | [ovs_cv_gnu_make], | |
859 | [rm -f conftest.out | |
860 | AS_ECHO(["$as_me:$LINENO: invoking ${MAKE-make} --version:"]) >&AS_MESSAGE_LOG_FD 2>&1 | |
861 | ${MAKE-make} --version >conftest.out 2>&1 | |
862 | cat conftest.out >&AS_MESSAGE_LOG_FD 2>&1 | |
863 | result=`cat conftest.out` | |
864 | rm -f conftest.mk conftest.out | |
865 | ||
866 | case $result in # ( | |
867 | GNU*) ovs_cv_gnu_make=yes ;; # ( | |
868 | *) ovs_cv_gnu_make=no ;; | |
869 | esac]) | |
870 | AM_CONDITIONAL([GNU_MAKE], [test $ovs_cv_gnu_make = yes])]) | |
871 | ||
643c0c34 BP |
872 | dnl OVS_CHECK_SPARSE_TARGET |
873 | dnl | |
874 | dnl The "cgcc" script from "sparse" isn't very good at detecting the | |
875 | dnl target for which the code is being built. This helps it out. | |
876 | AC_DEFUN([OVS_CHECK_SPARSE_TARGET], | |
877 | [AC_CACHE_CHECK( | |
878 | [target hint for cgcc], | |
879 | [ac_cv_sparse_target], | |
880 | [AS_CASE([`$CC -dumpmachine 2>/dev/null`], | |
881 | [i?86-* | athlon-*], [ac_cv_sparse_target=x86], | |
882 | [x86_64-*], [ac_cv_sparse_target=x86_64], | |
883 | [ac_cv_sparse_target=other])]) | |
884 | AS_CASE([$ac_cv_sparse_target], | |
885 | [x86], [SPARSEFLAGS= CGCCFLAGS=-target=i86], | |
886 | [x86_64], [SPARSEFLAGS=-m64 CGCCFLAGS=-target=x86_64], | |
887 | [SPARSEFLAGS= CGCCFLAGS=]) | |
888 | AC_SUBST([SPARSEFLAGS]) | |
889 | AC_SUBST([CGCCFLAGS])]) | |
890 | ||
32e96ab7 AZ |
891 | dnl OVS_SPARSE_EXTRA_INCLUDES |
892 | dnl | |
893 | dnl The cgcc script from "sparse" does not search gcc's default | |
894 | dnl search path. Get the default search path from GCC and pass | |
895 | dnl them to sparse. | |
896 | AC_DEFUN([OVS_SPARSE_EXTRA_INCLUDES], | |
897 | AC_SUBST([SPARSE_EXTRA_INCLUDES], | |
898 | [`$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 ' ' `] )) | |
899 | ||
29d935d6 BP |
900 | dnl OVS_ENABLE_SPARSE |
901 | AC_DEFUN([OVS_ENABLE_SPARSE], | |
643c0c34 | 902 | [AC_REQUIRE([OVS_CHECK_SPARSE_TARGET]) |
372d58a4 | 903 | AC_REQUIRE([OVS_CHECK_MAKE_IF]) |
32e96ab7 | 904 | AC_REQUIRE([OVS_SPARSE_EXTRA_INCLUDES]) |
372d58a4 BP |
905 | : ${SPARSE=sparse} |
906 | AC_SUBST([SPARSE]) | |
907 | AC_CONFIG_COMMANDS_PRE( | |
908 | [if test $ovs_cv_gnu_make_if = yes; then | |
38b7a52b | 909 | CC='$(if $(C),env REAL_CC="'"$CC"'" CHECK="$(SPARSE) -I $(top_srcdir)/include/sparse $(SPARSEFLAGS) $(SPARSE_EXTRA_INCLUDES) " cgcc $(CGCCFLAGS),'"$CC"')' |
372d58a4 | 910 | fi])]) |
8a8cd0ac BP |
911 | |
912 | dnl OVS_PTHREAD_SET_NAME | |
913 | dnl | |
914 | dnl This checks for three known variants of pthreads functions for setting | |
915 | dnl the name of the current thread: | |
916 | dnl | |
917 | dnl glibc: int pthread_setname_np(pthread_t, const char *name); | |
918 | dnl NetBSD: int pthread_setname_np(pthread_t, const char *format, void *arg); | |
919 | dnl FreeBSD: int pthread_set_name_np(pthread_t, const char *name); | |
920 | dnl | |
921 | dnl For glibc and FreeBSD, the arguments are just a thread and its name. For | |
922 | dnl NetBSD, 'format' is a printf() format string and 'arg' is an argument to | |
923 | dnl provide to it. | |
924 | dnl | |
925 | dnl This macro defines: | |
926 | dnl | |
927 | dnl glibc: HAVE_GLIBC_PTHREAD_SETNAME_NP | |
928 | dnl NetBSD: HAVE_NETBSD_PTHREAD_SETNAME_NP | |
929 | dnl FreeBSD: HAVE_PTHREAD_SET_NAME_NP | |
930 | AC_DEFUN([OVS_CHECK_PTHREAD_SET_NAME], | |
931 | [AC_CHECK_FUNCS([pthread_set_name_np]) | |
932 | if test $ac_cv_func_pthread_set_name_np != yes; then | |
933 | AC_CACHE_CHECK( | |
934 | [for pthread_setname_np() variant], | |
935 | [ovs_cv_pthread_setname_np], | |
936 | [AC_LINK_IFELSE( | |
a0903134 | 937 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac | 938 | ], [pthread_setname_np(pthread_self(), "name");])], |
a0903134 | 939 | [ovs_cv_pthread_setname_np=glibc], |
8a8cd0ac | 940 | [AC_LINK_IFELSE( |
a0903134 | 941 | [AC_LANG_PROGRAM([#include <pthread.h> |
8a8cd0ac BP |
942 | ], [pthread_setname_np(pthread_self(), "%s", "name");])], |
943 | [ovs_cv_pthread_setname_np=netbsd], | |
a0903134 | 944 | [ovs_cv_pthread_setname_np=none])])]) |
8a8cd0ac BP |
945 | case $ovs_cv_pthread_setname_np in # ( |
946 | glibc) | |
a0903134 YT |
947 | AC_DEFINE( |
948 | [HAVE_GLIBC_PTHREAD_SETNAME_NP], [1], | |
949 | [Define to 1 if pthread_setname_np() is available and takes 2 parameters (like glibc).]) | |
950 | ;; # ( | |
8a8cd0ac | 951 | netbsd) |
a0903134 YT |
952 | AC_DEFINE( |
953 | [HAVE_NETBSD_PTHREAD_SETNAME_NP], [1], | |
954 | [Define to 1 if pthread_setname_np() is available and takes 3 parameters (like NetBSD).]) | |
955 | ;; | |
8a8cd0ac BP |
956 | esac |
957 | fi]) | |
5020f5f0 BP |
958 | |
959 | dnl OVS_CHECK_LINUX_HOST. | |
960 | dnl | |
961 | dnl Checks whether we're building for a Linux host, based on the presence of | |
962 | dnl the __linux__ preprocessor symbol, and sets up an Automake conditional | |
963 | dnl LINUX based on the result. | |
964 | AC_DEFUN([OVS_CHECK_LINUX_HOST], | |
965 | [AC_CACHE_CHECK( | |
966 | [whether __linux__ is defined], | |
967 | [ovs_cv_linux], | |
968 | [AC_COMPILE_IFELSE( | |
969 | [AC_LANG_PROGRAM([enum { LINUX = __linux__};], [])], | |
970 | [ovs_cv_linux=true], | |
971 | [ovs_cv_linux=false])]) | |
972 | AM_CONDITIONAL([LINUX], [$ovs_cv_linux])]) |