1dnl # 2dnl # Default ZFS kernel configuration 3dnl # 4AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ 5 AM_COND_IF([BUILD_LINUX], [ 6 dnl # Setup the kernel build environment. 7 ZFS_AC_KERNEL 8 ZFS_AC_QAT 9 10 dnl # Sanity checks for module building and CONFIG_* defines 11 ZFS_AC_KERNEL_TEST_MODULE 12 ZFS_AC_KERNEL_CONFIG_DEFINED 13 14 dnl # Sequential ZFS_LINUX_TRY_COMPILE tests 15 ZFS_AC_KERNEL_FPU_HEADER 16 ZFS_AC_KERNEL_OBJTOOL_HEADER 17 ZFS_AC_KERNEL_WAIT_QUEUE_ENTRY_T 18 ZFS_AC_KERNEL_MISC_MINOR 19 ZFS_AC_KERNEL_DECLARE_EVENT_CLASS 20 21 dnl # Parallel ZFS_LINUX_TEST_SRC / ZFS_LINUX_TEST_RESULT tests 22 ZFS_AC_KERNEL_TEST_SRC 23 ZFS_AC_KERNEL_TEST_RESULT 24 25 AS_IF([test "$LINUX_OBJ" != "$LINUX"], [ 26 KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ" 27 ]) 28 29 AC_SUBST(KERNEL_MAKE) 30 ]) 31]) 32 33dnl # 34dnl # Generate and compile all of the kernel API test cases to determine 35dnl # which interfaces are available. By invoking the kernel build system 36dnl # only once the compilation can be done in parallel significantly 37dnl # speeding up the process. 38dnl # 39AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [ 40 ZFS_AC_KERNEL_SRC_OBJTOOL 41 ZFS_AC_KERNEL_SRC_GLOBAL_PAGE_STATE 42 ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE 43 ZFS_AC_KERNEL_SRC_PDE_DATA 44 ZFS_AC_KERNEL_SRC_FALLOCATE 45 ZFS_AC_KERNEL_SRC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 46 ZFS_AC_KERNEL_SRC_RWSEM 47 ZFS_AC_KERNEL_SRC_SCHED 48 ZFS_AC_KERNEL_SRC_USLEEP_RANGE 49 ZFS_AC_KERNEL_SRC_KMEM_CACHE 50 ZFS_AC_KERNEL_SRC_KVMALLOC 51 ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL 52 ZFS_AC_KERNEL_SRC_WAIT 53 ZFS_AC_KERNEL_SRC_INODE_TIMES 54 ZFS_AC_KERNEL_SRC_INODE_LOCK 55 ZFS_AC_KERNEL_SRC_GROUP_INFO_GID 56 ZFS_AC_KERNEL_SRC_RW 57 ZFS_AC_KERNEL_SRC_TIMER_SETUP 58 ZFS_AC_KERNEL_SRC_SUPER_USER_NS 59 ZFS_AC_KERNEL_SRC_PROC_OPERATIONS 60 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS 61 ZFS_AC_KERNEL_SRC_BIO 62 ZFS_AC_KERNEL_SRC_BLKDEV 63 ZFS_AC_KERNEL_SRC_BLK_QUEUE 64 ZFS_AC_KERNEL_SRC_REVALIDATE_DISK 65 ZFS_AC_KERNEL_SRC_GET_DISK_RO 66 ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL 67 ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY 68 ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE 69 ZFS_AC_KERNEL_SRC_XATTR 70 ZFS_AC_KERNEL_SRC_ACL 71 ZFS_AC_KERNEL_SRC_INODE_GETATTR 72 ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS 73 ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION 74 ZFS_AC_KERNEL_SRC_SHOW_OPTIONS 75 ZFS_AC_KERNEL_SRC_FILE_INODE 76 ZFS_AC_KERNEL_SRC_FILE_DENTRY 77 ZFS_AC_KERNEL_SRC_FSYNC 78 ZFS_AC_KERNEL_SRC_AIO_FSYNC 79 ZFS_AC_KERNEL_SRC_EVICT_INODE 80 ZFS_AC_KERNEL_SRC_DIRTY_INODE 81 ZFS_AC_KERNEL_SRC_SHRINKER 82 ZFS_AC_KERNEL_SRC_MKDIR 83 ZFS_AC_KERNEL_SRC_LOOKUP_FLAGS 84 ZFS_AC_KERNEL_SRC_CREATE 85 ZFS_AC_KERNEL_SRC_GET_LINK 86 ZFS_AC_KERNEL_SRC_PUT_LINK 87 ZFS_AC_KERNEL_SRC_TMPFILE 88 ZFS_AC_KERNEL_SRC_AUTOMOUNT 89 ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE 90 ZFS_AC_KERNEL_SRC_COMMIT_METADATA 91 ZFS_AC_KERNEL_SRC_CLEAR_INODE 92 ZFS_AC_KERNEL_SRC_SETATTR_PREPARE 93 ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED 94 ZFS_AC_KERNEL_SRC_DENTRY 95 ZFS_AC_KERNEL_SRC_TRUNCATE_SETSIZE 96 ZFS_AC_KERNEL_SRC_SECURITY_INODE 97 ZFS_AC_KERNEL_SRC_FST_MOUNT 98 ZFS_AC_KERNEL_SRC_BDI 99 ZFS_AC_KERNEL_SRC_SET_NLINK 100 ZFS_AC_KERNEL_SRC_SGET 101 ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE 102 ZFS_AC_KERNEL_SRC_VFS_GETATTR 103 ZFS_AC_KERNEL_SRC_VFS_FSYNC_2ARGS 104 ZFS_AC_KERNEL_SRC_VFS_ITERATE 105 ZFS_AC_KERNEL_SRC_VFS_DIRECT_IO 106 ZFS_AC_KERNEL_SRC_VFS_RW_ITERATE 107 ZFS_AC_KERNEL_SRC_VFS_GENERIC_WRITE_CHECKS 108 ZFS_AC_KERNEL_SRC_VFS_IOV_ITER 109 ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS 110 ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE 111 ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN 112 ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT 113 ZFS_AC_KERNEL_SRC_FPU 114 ZFS_AC_KERNEL_SRC_FMODE_T 115 ZFS_AC_KERNEL_SRC_KUIDGID_T 116 ZFS_AC_KERNEL_SRC_KUID_HELPERS 117 ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST 118 ZFS_AC_KERNEL_SRC_RENAME 119 ZFS_AC_KERNEL_SRC_CURRENT_TIME 120 ZFS_AC_KERNEL_SRC_USERNS_CAPABILITIES 121 ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL 122 ZFS_AC_KERNEL_SRC_KTIME 123 ZFS_AC_KERNEL_SRC_TOTALRAM_PAGES_FUNC 124 ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES 125 ZFS_AC_KERNEL_SRC_KSTRTOUL 126 ZFS_AC_KERNEL_SRC_PERCPU 127 ZFS_AC_KERNEL_SRC_CPU_HOTPLUG 128 ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS 129 ZFS_AC_KERNEL_SRC_MKNOD 130 ZFS_AC_KERNEL_SRC_SYMLINK 131 ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS 132 ZFS_AC_KERNEL_SRC_SIGNAL_STOP 133 ZFS_AC_KERNEL_SRC_SIGINFO 134 ZFS_AC_KERNEL_SRC_SET_SPECIAL_STATE 135 ZFS_AC_KERNEL_SRC_VFS_SET_PAGE_DIRTY_NOBUFFERS 136 ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG 137 138 AC_MSG_CHECKING([for available kernel interfaces]) 139 ZFS_LINUX_TEST_COMPILE_ALL([kabi]) 140 AC_MSG_RESULT([done]) 141]) 142 143dnl # 144dnl # Check results of kernel interface tests. 145dnl # 146AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ 147 ZFS_AC_KERNEL_ACCESS_OK_TYPE 148 ZFS_AC_KERNEL_GLOBAL_PAGE_STATE 149 ZFS_AC_KERNEL_OBJTOOL 150 ZFS_AC_KERNEL_PDE_DATA 151 ZFS_AC_KERNEL_FALLOCATE 152 ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 153 ZFS_AC_KERNEL_RWSEM 154 ZFS_AC_KERNEL_SCHED 155 ZFS_AC_KERNEL_USLEEP_RANGE 156 ZFS_AC_KERNEL_KMEM_CACHE 157 ZFS_AC_KERNEL_KVMALLOC 158 ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL 159 ZFS_AC_KERNEL_WAIT 160 ZFS_AC_KERNEL_INODE_TIMES 161 ZFS_AC_KERNEL_INODE_LOCK 162 ZFS_AC_KERNEL_GROUP_INFO_GID 163 ZFS_AC_KERNEL_RW 164 ZFS_AC_KERNEL_TIMER_SETUP 165 ZFS_AC_KERNEL_SUPER_USER_NS 166 ZFS_AC_KERNEL_PROC_OPERATIONS 167 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS 168 ZFS_AC_KERNEL_BIO 169 ZFS_AC_KERNEL_BLKDEV 170 ZFS_AC_KERNEL_BLK_QUEUE 171 ZFS_AC_KERNEL_REVALIDATE_DISK 172 ZFS_AC_KERNEL_GET_DISK_RO 173 ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL 174 ZFS_AC_KERNEL_DISCARD_GRANULARITY 175 ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE 176 ZFS_AC_KERNEL_XATTR 177 ZFS_AC_KERNEL_ACL 178 ZFS_AC_KERNEL_INODE_GETATTR 179 ZFS_AC_KERNEL_INODE_SET_FLAGS 180 ZFS_AC_KERNEL_INODE_SET_IVERSION 181 ZFS_AC_KERNEL_SHOW_OPTIONS 182 ZFS_AC_KERNEL_FILE_INODE 183 ZFS_AC_KERNEL_FILE_DENTRY 184 ZFS_AC_KERNEL_FSYNC 185 ZFS_AC_KERNEL_AIO_FSYNC 186 ZFS_AC_KERNEL_EVICT_INODE 187 ZFS_AC_KERNEL_DIRTY_INODE 188 ZFS_AC_KERNEL_SHRINKER 189 ZFS_AC_KERNEL_MKDIR 190 ZFS_AC_KERNEL_LOOKUP_FLAGS 191 ZFS_AC_KERNEL_CREATE 192 ZFS_AC_KERNEL_GET_LINK 193 ZFS_AC_KERNEL_PUT_LINK 194 ZFS_AC_KERNEL_TMPFILE 195 ZFS_AC_KERNEL_AUTOMOUNT 196 ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE 197 ZFS_AC_KERNEL_COMMIT_METADATA 198 ZFS_AC_KERNEL_CLEAR_INODE 199 ZFS_AC_KERNEL_SETATTR_PREPARE 200 ZFS_AC_KERNEL_INSERT_INODE_LOCKED 201 ZFS_AC_KERNEL_DENTRY 202 ZFS_AC_KERNEL_TRUNCATE_SETSIZE 203 ZFS_AC_KERNEL_SECURITY_INODE 204 ZFS_AC_KERNEL_FST_MOUNT 205 ZFS_AC_KERNEL_BDI 206 ZFS_AC_KERNEL_SET_NLINK 207 ZFS_AC_KERNEL_SGET 208 ZFS_AC_KERNEL_LSEEK_EXECUTE 209 ZFS_AC_KERNEL_VFS_GETATTR 210 ZFS_AC_KERNEL_VFS_FSYNC_2ARGS 211 ZFS_AC_KERNEL_VFS_ITERATE 212 ZFS_AC_KERNEL_VFS_DIRECT_IO 213 ZFS_AC_KERNEL_VFS_RW_ITERATE 214 ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS 215 ZFS_AC_KERNEL_VFS_IOV_ITER 216 ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS 217 ZFS_AC_KERNEL_FOLLOW_DOWN_ONE 218 ZFS_AC_KERNEL_MAKE_REQUEST_FN 219 ZFS_AC_KERNEL_GENERIC_IO_ACCT 220 ZFS_AC_KERNEL_FPU 221 ZFS_AC_KERNEL_FMODE_T 222 ZFS_AC_KERNEL_KUIDGID_T 223 ZFS_AC_KERNEL_KUID_HELPERS 224 ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST 225 ZFS_AC_KERNEL_RENAME 226 ZFS_AC_KERNEL_CURRENT_TIME 227 ZFS_AC_KERNEL_USERNS_CAPABILITIES 228 ZFS_AC_KERNEL_IN_COMPAT_SYSCALL 229 ZFS_AC_KERNEL_KTIME 230 ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC 231 ZFS_AC_KERNEL_TOTALHIGH_PAGES 232 ZFS_AC_KERNEL_KSTRTOUL 233 ZFS_AC_KERNEL_PERCPU 234 ZFS_AC_KERNEL_CPU_HOTPLUG 235 ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS 236 ZFS_AC_KERNEL_MKNOD 237 ZFS_AC_KERNEL_SYMLINK 238 ZFS_AC_KERNEL_BIO_MAX_SEGS 239 ZFS_AC_KERNEL_SIGNAL_STOP 240 ZFS_AC_KERNEL_SIGINFO 241 ZFS_AC_KERNEL_SET_SPECIAL_STATE 242 ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS 243 ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG 244]) 245 246dnl # 247dnl # Detect name used for Module.symvers file in kernel 248dnl # 249AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [ 250 modpost=$LINUX/scripts/Makefile.modpost 251 AC_MSG_CHECKING([kernel file name for module symbols]) 252 AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [ 253 AS_IF([grep -q Modules.symvers $modpost], [ 254 LINUX_SYMBOLS=Modules.symvers 255 ], [ 256 LINUX_SYMBOLS=Module.symvers 257 ]) 258 259 AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [ 260 AC_MSG_ERROR([ 261 *** Please make sure the kernel devel package for your distribution 262 *** is installed. If you are building with a custom kernel, make sure 263 *** the kernel is configured, built, and the '--with-linux=PATH' 264 *** configure option refers to the location of the kernel source. 265 ]) 266 ]) 267 ], [ 268 LINUX_SYMBOLS=NONE 269 ]) 270 AC_MSG_RESULT($LINUX_SYMBOLS) 271 AC_SUBST(LINUX_SYMBOLS) 272]) 273 274dnl # 275dnl # Detect the kernel to be built against 276dnl # 277AC_DEFUN([ZFS_AC_KERNEL], [ 278 AC_ARG_WITH([linux], 279 AS_HELP_STRING([--with-linux=PATH], 280 [Path to kernel source]), 281 [kernelsrc="$withval"]) 282 283 AC_ARG_WITH(linux-obj, 284 AS_HELP_STRING([--with-linux-obj=PATH], 285 [Path to kernel build objects]), 286 [kernelbuild="$withval"]) 287 288 AC_MSG_CHECKING([kernel source directory]) 289 AS_IF([test -z "$kernelsrc"], [ 290 AS_IF([test -e "/lib/modules/$(uname -r)/source"], [ 291 headersdir="/lib/modules/$(uname -r)/source" 292 sourcelink=$(readlink -f "$headersdir") 293 ], [test -e "/lib/modules/$(uname -r)/build"], [ 294 headersdir="/lib/modules/$(uname -r)/build" 295 sourcelink=$(readlink -f "$headersdir") 296 ], [ 297 sourcelink=$(ls -1d /usr/src/kernels/* \ 298 /usr/src/linux-* \ 299 2>/dev/null | grep -v obj | tail -1) 300 ]) 301 302 AS_IF([test -n "$sourcelink" && test -e ${sourcelink}], [ 303 kernelsrc=`readlink -f ${sourcelink}` 304 ], [ 305 kernelsrc="[Not found]" 306 ]) 307 ], [ 308 AS_IF([test "$kernelsrc" = "NONE"], [ 309 kernsrcver=NONE 310 ]) 311 withlinux=yes 312 ]) 313 314 AC_MSG_RESULT([$kernelsrc]) 315 AS_IF([test ! -d "$kernelsrc"], [ 316 AC_MSG_ERROR([ 317 *** Please make sure the kernel devel package for your distribution 318 *** is installed and then try again. If that fails, you can specify the 319 *** location of the kernel source with the '--with-linux=PATH' option.]) 320 ]) 321 322 AC_MSG_CHECKING([kernel build directory]) 323 AS_IF([test -z "$kernelbuild"], [ 324 AS_IF([test x$withlinux != xyes -a -e "/lib/modules/$(uname -r)/build"], [ 325 kernelbuild=`readlink -f /lib/modules/$(uname -r)/build` 326 ], [test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}], [ 327 kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu} 328 ], [test -d ${kernelsrc}-obj/${target_cpu}/default], [ 329 kernelbuild=${kernelsrc}-obj/${target_cpu}/default 330 ], [test -d `dirname ${kernelsrc}`/build-${target_cpu}], [ 331 kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu} 332 ], [ 333 kernelbuild=${kernelsrc} 334 ]) 335 ]) 336 AC_MSG_RESULT([$kernelbuild]) 337 338 AC_MSG_CHECKING([kernel source version]) 339 utsrelease1=$kernelbuild/include/linux/version.h 340 utsrelease2=$kernelbuild/include/linux/utsrelease.h 341 utsrelease3=$kernelbuild/include/generated/utsrelease.h 342 AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1], [ 343 utsrelease=$utsrelease1 344 ], [test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2], [ 345 utsrelease=$utsrelease2 346 ], [test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3], [ 347 utsrelease=$utsrelease3 348 ]) 349 350 AS_IF([test -n "$utsrelease"], [ 351 kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease) 352 AS_IF([test -z "$kernsrcver"], [ 353 AC_MSG_RESULT([Not found]) 354 AC_MSG_ERROR([ 355 *** Cannot determine kernel version. 356 ]) 357 ]) 358 ], [ 359 AC_MSG_RESULT([Not found]) 360 if test "x$enable_linux_builtin" != xyes; then 361 AC_MSG_ERROR([ 362 *** Cannot find UTS_RELEASE definition. 363 ]) 364 else 365 AC_MSG_ERROR([ 366 *** Cannot find UTS_RELEASE definition. 367 *** Please run 'make prepare' inside the kernel source tree.]) 368 fi 369 ]) 370 371 AC_MSG_RESULT([$kernsrcver]) 372 373 AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [ 374 AC_MSG_ERROR([ 375 *** Cannot build against kernel version $kernsrcver. 376 *** The minimum supported kernel version is $ZFS_META_KVER_MIN. 377 ]) 378 ]) 379 380 LINUX=${kernelsrc} 381 LINUX_OBJ=${kernelbuild} 382 LINUX_VERSION=${kernsrcver} 383 384 AC_SUBST(LINUX) 385 AC_SUBST(LINUX_OBJ) 386 AC_SUBST(LINUX_VERSION) 387 388 ZFS_AC_MODULE_SYMVERS 389]) 390 391dnl # 392dnl # Detect the QAT module to be built against, QAT provides hardware 393dnl # acceleration for data compression: 394dnl # 395dnl # https://01.org/intel-quickassist-technology 396dnl # 397dnl # 1) Download and install QAT driver from the above link 398dnl # 2) Start QAT driver in your system: 399dnl # service qat_service start 400dnl # 3) Enable QAT in ZFS, e.g.: 401dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 402dnl # make 403dnl # 4) Set GZIP compression in ZFS dataset: 404dnl # zfs set compression = gzip <dataset> 405dnl # 406dnl # Then the data written to this ZFS pool is compressed by QAT accelerator 407dnl # automatically, and de-compressed by QAT when read from the pool. 408dnl # 409dnl # 1) Get QAT hardware statistics with: 410dnl # cat /proc/icp_dh895xcc_dev/qat 411dnl # 2) To disable QAT: 412dnl # insmod zfs.ko zfs_qat_disable=1 413dnl # 414AC_DEFUN([ZFS_AC_QAT], [ 415 AC_ARG_WITH([qat], 416 AS_HELP_STRING([--with-qat=PATH], 417 [Path to qat source]), 418 AS_IF([test "$withval" = "yes"], 419 AC_MSG_ERROR([--with-qat=PATH requires a PATH]), 420 [qatsrc="$withval"])) 421 422 AC_ARG_WITH([qat-obj], 423 AS_HELP_STRING([--with-qat-obj=PATH], 424 [Path to qat build objects]), 425 [qatbuild="$withval"]) 426 427 AS_IF([test ! -z "${qatsrc}"], [ 428 AC_MSG_CHECKING([qat source directory]) 429 AC_MSG_RESULT([$qatsrc]) 430 QAT_SRC="${qatsrc}/quickassist" 431 AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ 432 AC_MSG_ERROR([ 433 *** Please make sure the qat driver package is installed 434 *** and specify the location of the qat source with the 435 *** '--with-qat=PATH' option then try again. Failed to 436 *** find cpa.h in: 437 ${QAT_SRC}/include]) 438 ]) 439 ]) 440 441 AS_IF([test ! -z "${qatsrc}"], [ 442 AC_MSG_CHECKING([qat build directory]) 443 AS_IF([test -z "$qatbuild"], [ 444 qatbuild="${qatsrc}/build" 445 ]) 446 447 AC_MSG_RESULT([$qatbuild]) 448 QAT_OBJ=${qatbuild} 449 AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [ 450 AC_MSG_ERROR([ 451 *** Please make sure the qat driver is installed then try again. 452 *** Failed to find icp_qa_al.ko or qat_api.ko in: 453 $QAT_OBJ]) 454 ]) 455 456 AC_SUBST(QAT_SRC) 457 AC_SUBST(QAT_OBJ) 458 459 AC_DEFINE(HAVE_QAT, 1, 460 [qat is enabled and existed]) 461 ]) 462 463 dnl # 464 dnl # Detect the name used for the QAT Module.symvers file. 465 dnl # 466 AS_IF([test ! -z "${qatsrc}"], [ 467 AC_MSG_CHECKING([qat file for module symbols]) 468 QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers 469 470 AS_IF([test -r $QAT_SYMBOLS], [ 471 AC_MSG_RESULT([$QAT_SYMBOLS]) 472 AC_SUBST(QAT_SYMBOLS) 473 ],[ 474 AC_MSG_ERROR([ 475 *** Please make sure the qat driver is installed then try again. 476 *** Failed to find Module.symvers in: 477 $QAT_SYMBOLS 478 ]) 479 ]) 480 ]) 481]) 482 483dnl # 484dnl # Basic toolchain sanity check. 485dnl # 486AC_DEFUN([ZFS_AC_KERNEL_TEST_MODULE], [ 487 AC_MSG_CHECKING([whether modules can be built]) 488 ZFS_LINUX_TRY_COMPILE([], [], [ 489 AC_MSG_RESULT([yes]) 490 ],[ 491 AC_MSG_RESULT([no]) 492 if test "x$enable_linux_builtin" != xyes; then 493 AC_MSG_ERROR([ 494 *** Unable to build an empty module. 495 ]) 496 else 497 AC_MSG_ERROR([ 498 *** Unable to build an empty module. 499 *** Please run 'make scripts' inside the kernel source tree.]) 500 fi 501 ]) 502]) 503 504dnl # 505dnl # ZFS_LINUX_CONFTEST_H 506dnl # 507AC_DEFUN([ZFS_LINUX_CONFTEST_H], [ 508test -d build/$2 || mkdir -p build/$2 509cat - <<_ACEOF >build/$2/$2.h 510$1 511_ACEOF 512]) 513 514dnl # 515dnl # ZFS_LINUX_CONFTEST_C 516dnl # 517AC_DEFUN([ZFS_LINUX_CONFTEST_C], [ 518test -d build/$2 || mkdir -p build/$2 519cat confdefs.h - <<_ACEOF >build/$2/$2.c 520$1 521_ACEOF 522]) 523 524dnl # 525dnl # ZFS_LINUX_CONFTEST_MAKEFILE 526dnl # 527dnl # $1 - test case name 528dnl # $2 - add to top-level Makefile 529dnl # $3 - additional build flags 530dnl # 531AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [ 532 test -d build || mkdir -p build 533 test -d build/$1 || mkdir -p build/$1 534 535 file=build/$1/Makefile 536 537 dnl # Example command line to manually build source. 538 cat - <<_ACEOF >$file 539# Example command line to manually build source 540# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1 541 542ccflags-y := -Werror $FRAME_LARGER_THAN 543_ACEOF 544 545 dnl # Additional custom CFLAGS as requested. 546 m4_ifval($3, [echo "ccflags-y += $3" >>$file], []) 547 548 dnl # Test case source 549 echo "obj-m := $1.o" >>$file 550 551 AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], []) 552]) 553 554dnl # 555dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY]) 556dnl # 557m4_define([ZFS_LINUX_TEST_PROGRAM], [ 558#include <linux/module.h> 559$1 560 561int 562main (void) 563{ 564$2 565 ; 566 return 0; 567} 568 569MODULE_DESCRIPTION("conftest"); 570MODULE_AUTHOR(ZFS_META_AUTHOR); 571MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); 572MODULE_LICENSE($3); 573]) 574 575dnl # 576dnl # ZFS_LINUX_TEST_REMOVE 577dnl # 578dnl # Removes the specified test source and results. 579dnl # 580AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [ 581 test -d build/$1 && rm -Rf build/$1 582 test -f build/Makefile && sed '/$1/d' build/Makefile 583]) 584 585dnl # 586dnl # ZFS_LINUX_COMPILE 587dnl # 588dnl # $1 - build dir 589dnl # $2 - test command 590dnl # $3 - pass command 591dnl # $4 - fail command 592dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes' 593dnl # $6 - set KBUILD_MODPOST_WARN='yes' 594dnl # 595dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST} 596dnl # 597AC_DEFUN([ZFS_LINUX_COMPILE], [ 598 AC_TRY_COMMAND([ 599 KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6" 600 make modules -k -j$TEST_JOBS -C $LINUX_OBJ $ARCH_UM 601 M=$PWD/$1 >$1/build.log 2>&1]) 602 AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4]) 603]) 604 605dnl # 606dnl # ZFS_LINUX_TEST_COMPILE 607dnl # 608dnl # Perform a full compile excluding the final modpost phase. 609dnl # 610AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [ 611 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 612 mv $2/Makefile $2/Makefile.compile.$1 613 mv $2/build.log $2/build.log.$1 614 ],[ 615 AC_MSG_ERROR([ 616 *** Unable to compile test source to determine kernel interfaces.]) 617 ], [yes], []) 618]) 619 620dnl # 621dnl # ZFS_LINUX_TEST_MODPOST 622dnl # 623dnl # Perform a full compile including the modpost phase. This may 624dnl # be an incremental build if the objects have already been built. 625dnl # 626AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [ 627 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 628 mv $2/Makefile $2/Makefile.modpost.$1 629 cat $2/build.log >>build/build.log.$1 630 ],[ 631 AC_MSG_ERROR([ 632 *** Unable to modpost test source to determine kernel interfaces.]) 633 ], [], [yes]) 634]) 635 636dnl # 637dnl # Perform the compilation of the test cases in two phases. 638dnl # 639dnl # Phase 1) attempt to build the object files for all of the tests 640dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not 641dnl # perform the final modpost stage. 642dnl # 643dnl # Phase 2) disable all tests which failed the initial compilation, 644dnl # then invoke the final modpost step for the remaining tests. 645dnl # 646dnl # This allows us efficiently build the test cases in parallel while 647dnl # remaining resilient to build failures which are expected when 648dnl # detecting the available kernel interfaces. 649dnl # 650dnl # The maximum allowed parallelism can be controlled by setting the 651dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc). 652dnl # 653AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [ 654 dnl # Phase 1 - Compilation only, final linking is skipped. 655 ZFS_LINUX_TEST_COMPILE([$1], [build]) 656 657 dnl # 658 dnl # Phase 2 - When building external modules disable test cases 659 dnl # which failed to compile and invoke modpost to verify the 660 dnl # final linking. 661 dnl # 662 dnl # Test names suffixed with '_license' call modpost independently 663 dnl # to ensure that a single incompatibility does not result in the 664 dnl # modpost phase exiting early. This check is not performed on 665 dnl # every symbol since the majority are compatible and doing so 666 dnl # would significantly slow down this phase. 667 dnl # 668 dnl # When configuring for builtin (--enable-linux-builtin) 669 dnl # fake the linking step artificially create the expected .ko 670 dnl # files for tests which did compile. This is required for 671 dnl # kernels which do not have loadable module support or have 672 dnl # not yet been built. 673 dnl # 674 AS_IF([test "x$enable_linux_builtin" = "xno"], [ 675 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 676 build/Makefile.compile.$1); do 677 name=${dir%/} 678 AS_IF([test -f build/$name/$name.o], [ 679 AS_IF([test "${name##*_}" = "license"], [ 680 ZFS_LINUX_TEST_MODPOST([$1], 681 [build/$name]) 682 echo "obj-n += $dir" >>build/Makefile 683 ], [ 684 echo "obj-m += $dir" >>build/Makefile 685 ]) 686 ], [ 687 echo "obj-n += $dir" >>build/Makefile 688 ]) 689 done 690 691 ZFS_LINUX_TEST_MODPOST([$1], [build]) 692 ], [ 693 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 694 build/Makefile.compile.$1); do 695 name=${dir%/} 696 AS_IF([test -f build/$name/$name.o], [ 697 touch build/$name/$name.ko 698 ]) 699 done 700 ]) 701]) 702 703dnl # 704dnl # ZFS_LINUX_TEST_SRC 705dnl # 706dnl # $1 - name 707dnl # $2 - global 708dnl # $3 - source 709dnl # $4 - extra cflags 710dnl # $5 - check license-compatibility 711dnl # 712dnl # Check if the test source is buildable at all and then if it is 713dnl # license compatible. 714dnl # 715dnl # N.B because all of the test cases are compiled in parallel they 716dnl # must never depend on the results of previous tests. Each test 717dnl # needs to be entirely independent. 718dnl # 719AC_DEFUN([ZFS_LINUX_TEST_SRC], [ 720 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]], 721 [["Dual BSD/GPL"]])], [$1]) 722 ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4]) 723 724 AS_IF([ test -n "$5" ], [ 725 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM( 726 [[$2]], [[$3]], [[$5]])], [$1_license]) 727 ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4]) 728 ]) 729]) 730 731dnl # 732dnl # ZFS_LINUX_TEST_RESULT 733dnl # 734dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC) 735dnl # $2 - run on success (valid .ko generated) 736dnl # $3 - run on failure (unable to compile) 737dnl # 738AC_DEFUN([ZFS_LINUX_TEST_RESULT], [ 739 AS_IF([test -d build/$1], [ 740 AS_IF([test -f build/$1/$1.ko], [$2], [$3]) 741 ], [ 742 AC_MSG_ERROR([ 743 *** No matching source for the "$1" test, check that 744 *** both the test source and result macros refer to the same name. 745 ]) 746 ]) 747]) 748 749dnl # 750dnl # ZFS_LINUX_TEST_ERROR 751dnl # 752dnl # Generic error message which can be used when none of the expected 753dnl # kernel interfaces were detected. 754dnl # 755AC_DEFUN([ZFS_LINUX_TEST_ERROR], [ 756 AC_MSG_ERROR([ 757 *** None of the expected "$1" interfaces were detected. 758 *** This may be because your kernel version is newer than what is 759 *** supported, or you are using a patched custom kernel with 760 *** incompatible modifications. 761 *** 762 *** ZFS Version: $ZFS_META_ALIAS 763 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 764 ]) 765]) 766 767dnl # 768dnl # ZFS_LINUX_TEST_RESULT_SYMBOL 769dnl # 770dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to 771dnl # verify symbol exports, unless --enable-linux-builtin was provided to 772dnl # configure. 773dnl # 774AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [ 775 AS_IF([ ! test -f build/$1/$1.ko], [ 776 $5 777 ], [ 778 AS_IF([test "x$enable_linux_builtin" != "xyes"], [ 779 ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5]) 780 ], [ 781 $4 782 ]) 783 ]) 784]) 785 786dnl # 787dnl # ZFS_LINUX_COMPILE_IFELSE 788dnl # 789AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [ 790 ZFS_LINUX_TEST_REMOVE([conftest]) 791 792 m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])]) 793 m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])], 794 [ZFS_LINUX_CONFTEST_H([], [conftest])]) 795 796 ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no], 797 [m4_ifvaln([$5], [-I$PWD/build/conftest], [])]) 798 ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], []) 799]) 800 801dnl # 802dnl # ZFS_LINUX_TRY_COMPILE 803dnl # 804dnl # $1 - global 805dnl # $2 - source 806dnl # $3 - run on success (valid .ko generated) 807dnl # $4 - run on failure (unable to compile) 808dnl # 809dnl # When configuring as builtin (--enable-linux-builtin) for kernels 810dnl # without loadable module support (CONFIG_MODULES=n) only the object 811dnl # file is created. See ZFS_LINUX_TEST_COMPILE_ALL for details. 812dnl # 813AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [ 814 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 815 ZFS_LINUX_COMPILE_IFELSE( 816 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 817 [[ZFS_META_LICENSE]])], 818 [test -f build/conftest/conftest.o], [$3], [$4]) 819 ], [ 820 ZFS_LINUX_COMPILE_IFELSE( 821 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 822 [[ZFS_META_LICENSE]])], 823 [test -f build/conftest/conftest.ko], [$3], [$4]) 824 ]) 825]) 826 827dnl # 828dnl # ZFS_CHECK_SYMBOL_EXPORT 829dnl # 830dnl # Check if a symbol is exported on not by consulting the symbols 831dnl # file, or optionally the source code. 832dnl # 833AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [ 834 grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ 835 $LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null 836 rc=$? 837 if test $rc -ne 0; then 838 export=0 839 for file in $2; do 840 grep -q -E "EXPORT_SYMBOL.*($1)" \ 841 "$LINUX/$file" 2>/dev/null 842 rc=$? 843 if test $rc -eq 0; then 844 export=1 845 break; 846 fi 847 done 848 if test $export -eq 0; then : 849 $4 850 else : 851 $3 852 fi 853 else : 854 $3 855 fi 856]) 857 858dnl # 859dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL 860dnl # 861dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called 862dnl # to verify symbol exports, unless --enable-linux-builtin was provided 863dnl # to configure. 864dnl # 865AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [ 866 ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) 867 if test $rc -ne 0; then : 868 $6 869 else 870 if test "x$enable_linux_builtin" != xyes; then 871 ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) 872 fi 873 if test $rc -ne 0; then : 874 $6 875 else : 876 $5 877 fi 878 fi 879]) 880 881dnl # 882dnl # ZFS_LINUX_TRY_COMPILE_HEADER 883dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are 884dnl # provided via the fifth parameter 885dnl # 886AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [ 887 ZFS_LINUX_COMPILE_IFELSE( 888 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], [[ZFS_META_LICENSE]])], 889 [test -f build/conftest/conftest.ko], 890 [$3], [$4], [$5]) 891]) 892