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 ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT 138 ZFS_AC_KERNEL_SRC_ADD_DISK 139 ZFS_AC_KERNEL_SRC_KTHREAD 140 ZFS_AC_KERNEL_SRC_ZERO_PAGE 141 142 AC_MSG_CHECKING([for available kernel interfaces]) 143 ZFS_LINUX_TEST_COMPILE_ALL([kabi]) 144 AC_MSG_RESULT([done]) 145]) 146 147dnl # 148dnl # Check results of kernel interface tests. 149dnl # 150AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ 151 ZFS_AC_KERNEL_ACCESS_OK_TYPE 152 ZFS_AC_KERNEL_GLOBAL_PAGE_STATE 153 ZFS_AC_KERNEL_OBJTOOL 154 ZFS_AC_KERNEL_PDE_DATA 155 ZFS_AC_KERNEL_FALLOCATE 156 ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 157 ZFS_AC_KERNEL_RWSEM 158 ZFS_AC_KERNEL_SCHED 159 ZFS_AC_KERNEL_USLEEP_RANGE 160 ZFS_AC_KERNEL_KMEM_CACHE 161 ZFS_AC_KERNEL_KVMALLOC 162 ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL 163 ZFS_AC_KERNEL_WAIT 164 ZFS_AC_KERNEL_INODE_TIMES 165 ZFS_AC_KERNEL_INODE_LOCK 166 ZFS_AC_KERNEL_GROUP_INFO_GID 167 ZFS_AC_KERNEL_RW 168 ZFS_AC_KERNEL_TIMER_SETUP 169 ZFS_AC_KERNEL_SUPER_USER_NS 170 ZFS_AC_KERNEL_PROC_OPERATIONS 171 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS 172 ZFS_AC_KERNEL_BIO 173 ZFS_AC_KERNEL_BLKDEV 174 ZFS_AC_KERNEL_BLK_QUEUE 175 ZFS_AC_KERNEL_REVALIDATE_DISK 176 ZFS_AC_KERNEL_GET_DISK_RO 177 ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL 178 ZFS_AC_KERNEL_DISCARD_GRANULARITY 179 ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE 180 ZFS_AC_KERNEL_XATTR 181 ZFS_AC_KERNEL_ACL 182 ZFS_AC_KERNEL_INODE_GETATTR 183 ZFS_AC_KERNEL_INODE_SET_FLAGS 184 ZFS_AC_KERNEL_INODE_SET_IVERSION 185 ZFS_AC_KERNEL_SHOW_OPTIONS 186 ZFS_AC_KERNEL_FILE_INODE 187 ZFS_AC_KERNEL_FILE_DENTRY 188 ZFS_AC_KERNEL_FSYNC 189 ZFS_AC_KERNEL_AIO_FSYNC 190 ZFS_AC_KERNEL_EVICT_INODE 191 ZFS_AC_KERNEL_DIRTY_INODE 192 ZFS_AC_KERNEL_SHRINKER 193 ZFS_AC_KERNEL_MKDIR 194 ZFS_AC_KERNEL_LOOKUP_FLAGS 195 ZFS_AC_KERNEL_CREATE 196 ZFS_AC_KERNEL_GET_LINK 197 ZFS_AC_KERNEL_PUT_LINK 198 ZFS_AC_KERNEL_TMPFILE 199 ZFS_AC_KERNEL_AUTOMOUNT 200 ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE 201 ZFS_AC_KERNEL_COMMIT_METADATA 202 ZFS_AC_KERNEL_CLEAR_INODE 203 ZFS_AC_KERNEL_SETATTR_PREPARE 204 ZFS_AC_KERNEL_INSERT_INODE_LOCKED 205 ZFS_AC_KERNEL_DENTRY 206 ZFS_AC_KERNEL_TRUNCATE_SETSIZE 207 ZFS_AC_KERNEL_SECURITY_INODE 208 ZFS_AC_KERNEL_FST_MOUNT 209 ZFS_AC_KERNEL_BDI 210 ZFS_AC_KERNEL_SET_NLINK 211 ZFS_AC_KERNEL_SGET 212 ZFS_AC_KERNEL_LSEEK_EXECUTE 213 ZFS_AC_KERNEL_VFS_GETATTR 214 ZFS_AC_KERNEL_VFS_FSYNC_2ARGS 215 ZFS_AC_KERNEL_VFS_ITERATE 216 ZFS_AC_KERNEL_VFS_DIRECT_IO 217 ZFS_AC_KERNEL_VFS_RW_ITERATE 218 ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS 219 ZFS_AC_KERNEL_VFS_IOV_ITER 220 ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS 221 ZFS_AC_KERNEL_FOLLOW_DOWN_ONE 222 ZFS_AC_KERNEL_MAKE_REQUEST_FN 223 ZFS_AC_KERNEL_GENERIC_IO_ACCT 224 ZFS_AC_KERNEL_FPU 225 ZFS_AC_KERNEL_FMODE_T 226 ZFS_AC_KERNEL_KUIDGID_T 227 ZFS_AC_KERNEL_KUID_HELPERS 228 ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST 229 ZFS_AC_KERNEL_RENAME 230 ZFS_AC_KERNEL_CURRENT_TIME 231 ZFS_AC_KERNEL_USERNS_CAPABILITIES 232 ZFS_AC_KERNEL_IN_COMPAT_SYSCALL 233 ZFS_AC_KERNEL_KTIME 234 ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC 235 ZFS_AC_KERNEL_TOTALHIGH_PAGES 236 ZFS_AC_KERNEL_KSTRTOUL 237 ZFS_AC_KERNEL_PERCPU 238 ZFS_AC_KERNEL_CPU_HOTPLUG 239 ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS 240 ZFS_AC_KERNEL_MKNOD 241 ZFS_AC_KERNEL_SYMLINK 242 ZFS_AC_KERNEL_BIO_MAX_SEGS 243 ZFS_AC_KERNEL_SIGNAL_STOP 244 ZFS_AC_KERNEL_SIGINFO 245 ZFS_AC_KERNEL_SET_SPECIAL_STATE 246 ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS 247 ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG 248 ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT 249 ZFS_AC_KERNEL_ADD_DISK 250 ZFS_AC_KERNEL_KTHREAD 251 ZFS_AC_KERNEL_ZERO_PAGE 252]) 253 254dnl # 255dnl # Detect name used for Module.symvers file in kernel 256dnl # 257AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [ 258 modpost=$LINUX/scripts/Makefile.modpost 259 AC_MSG_CHECKING([kernel file name for module symbols]) 260 AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [ 261 AS_IF([grep -q Modules.symvers $modpost], [ 262 LINUX_SYMBOLS=Modules.symvers 263 ], [ 264 LINUX_SYMBOLS=Module.symvers 265 ]) 266 267 AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [ 268 AC_MSG_ERROR([ 269 *** Please make sure the kernel devel package for your distribution 270 *** is installed. If you are building with a custom kernel, make sure 271 *** the kernel is configured, built, and the '--with-linux=PATH' 272 *** configure option refers to the location of the kernel source. 273 ]) 274 ]) 275 ], [ 276 LINUX_SYMBOLS=NONE 277 ]) 278 AC_MSG_RESULT($LINUX_SYMBOLS) 279 AC_SUBST(LINUX_SYMBOLS) 280]) 281 282dnl # 283dnl # Detect the kernel to be built against 284dnl # 285dnl # Most modern Linux distributions have separate locations for bare 286dnl # source (source) and prebuilt (build) files. Additionally, there are 287dnl # `source` and `build` symlinks in `/lib/modules/$(KERNEL_VERSION)` 288dnl # pointing to them. The directory search order is now: 289dnl # 290dnl # - `configure` command line values if both `--with-linux` and 291dnl # `--with-linux-obj` were defined 292dnl # 293dnl # - If only `--with-linux` was defined, `--with-linux-obj` is assumed 294dnl # to have the same value as `--with-linux` 295dnl # 296dnl # - If neither `--with-linux` nor `--with-linux-obj` were defined 297dnl # autodetection is used: 298dnl # 299dnl # - `/lib/modules/$(uname -r)/{source,build}` respectively, if exist. 300dnl # 301dnl # - If only `/lib/modules/$(uname -r)/build` exists, it is assumed 302dnl # to be both source and build directory. 303dnl # 304dnl # - The first directory in `/lib/modules` with the highest version 305dnl # number according to `sort -V` which contains both `source` and 306dnl # `build` symlinks/directories. If module directory contains only 307dnl # `build` component, it is assumed to be both source and build 308dnl # directory. 309dnl # 310dnl # - Last resort: the first directory matching `/usr/src/kernels/*` 311dnl # and `/usr/src/linux-*` with the highest version number according 312dnl # to `sort -V` is assumed to be both source and build directory. 313dnl # 314AC_DEFUN([ZFS_AC_KERNEL], [ 315 AC_ARG_WITH([linux], 316 AS_HELP_STRING([--with-linux=PATH], 317 [Path to kernel source]), 318 [kernelsrc="$withval"]) 319 320 AC_ARG_WITH(linux-obj, 321 AS_HELP_STRING([--with-linux-obj=PATH], 322 [Path to kernel build objects]), 323 [kernelbuild="$withval"]) 324 325 AC_MSG_CHECKING([kernel source and build directories]) 326 AS_IF([test -n "$kernelsrc" && test -z "$kernelbuild"], [ 327 kernelbuild="$kernelsrc" 328 ], [test -z "$kernelsrc"], [ 329 AS_IF([test -e "/lib/modules/$(uname -r)/source" && \ 330 test -e "/lib/modules/$(uname -r)/build"], [ 331 src="/lib/modules/$(uname -r)/source" 332 build="/lib/modules/$(uname -r)/build" 333 ], [test -e "/lib/modules/$(uname -r)/build"], [ 334 build="/lib/modules/$(uname -r)/build" 335 src="$build" 336 ], [ 337 src= 338 339 for d in $(ls -1d /lib/modules/* 2>/dev/null | sort -Vr); do 340 if test -e "$d/source" && test -e "$d/build"; then 341 src="$d/source" 342 build="$d/build" 343 break 344 fi 345 346 if test -e "$d/build"; then 347 src="$d/build" 348 build="$d/build" 349 break 350 fi 351 done 352 353 # the least reliable method 354 if test -z "$src"; then 355 src=$(ls -1d /usr/src/kernels/* /usr/src/linux-* \ 356 2>/dev/null | grep -v obj | sort -Vr | head -1) 357 build="$src" 358 fi 359 ]) 360 361 AS_IF([test -n "$src" && test -e "$src"], [ 362 kernelsrc=$(readlink -e "$src") 363 ], [ 364 kernelsrc="[Not found]" 365 ]) 366 AS_IF([test -n "$build" && test -e "$build"], [ 367 kernelbuild=$(readlink -e "$build") 368 ], [ 369 kernelbuild="[Not found]" 370 ]) 371 ], [ 372 AS_IF([test "$kernelsrc" = "NONE"], [ 373 kernsrcver=NONE 374 ]) 375 withlinux=yes 376 ]) 377 378 AC_MSG_RESULT([done]) 379 AC_MSG_CHECKING([kernel source directory]) 380 AC_MSG_RESULT([$kernelsrc]) 381 AC_MSG_CHECKING([kernel build directory]) 382 AC_MSG_RESULT([$kernelbuild]) 383 AS_IF([test ! -d "$kernelsrc" || test ! -d "$kernelbuild"], [ 384 AC_MSG_ERROR([ 385 *** Please make sure the kernel devel package for your distribution 386 *** is installed and then try again. If that fails, you can specify the 387 *** location of the kernel source and build with the '--with-linux=PATH' and 388 *** '--with-linux-obj=PATH' options respectively.]) 389 ]) 390 391 AC_MSG_CHECKING([kernel source version]) 392 utsrelease1=$kernelbuild/include/linux/version.h 393 utsrelease2=$kernelbuild/include/linux/utsrelease.h 394 utsrelease3=$kernelbuild/include/generated/utsrelease.h 395 AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1], [ 396 utsrelease=$utsrelease1 397 ], [test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2], [ 398 utsrelease=$utsrelease2 399 ], [test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3], [ 400 utsrelease=$utsrelease3 401 ]) 402 403 AS_IF([test -n "$utsrelease"], [ 404 kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease) 405 AS_IF([test -z "$kernsrcver"], [ 406 AC_MSG_RESULT([Not found]) 407 AC_MSG_ERROR([ 408 *** Cannot determine kernel version. 409 ]) 410 ]) 411 ], [ 412 AC_MSG_RESULT([Not found]) 413 if test "x$enable_linux_builtin" != xyes; then 414 AC_MSG_ERROR([ 415 *** Cannot find UTS_RELEASE definition. 416 ]) 417 else 418 AC_MSG_ERROR([ 419 *** Cannot find UTS_RELEASE definition. 420 *** Please run 'make prepare' inside the kernel source tree.]) 421 fi 422 ]) 423 424 AC_MSG_RESULT([$kernsrcver]) 425 426 AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [ 427 AC_MSG_ERROR([ 428 *** Cannot build against kernel version $kernsrcver. 429 *** The minimum supported kernel version is $ZFS_META_KVER_MIN. 430 ]) 431 ]) 432 433 LINUX=${kernelsrc} 434 LINUX_OBJ=${kernelbuild} 435 LINUX_VERSION=${kernsrcver} 436 437 AC_SUBST(LINUX) 438 AC_SUBST(LINUX_OBJ) 439 AC_SUBST(LINUX_VERSION) 440 441 ZFS_AC_MODULE_SYMVERS 442]) 443 444dnl # 445dnl # Detect the QAT module to be built against, QAT provides hardware 446dnl # acceleration for data compression: 447dnl # 448dnl # https://01.org/intel-quickassist-technology 449dnl # 450dnl # 1) Download and install QAT driver from the above link 451dnl # 2) Start QAT driver in your system: 452dnl # service qat_service start 453dnl # 3) Enable QAT in ZFS, e.g.: 454dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 455dnl # make 456dnl # 4) Set GZIP compression in ZFS dataset: 457dnl # zfs set compression = gzip <dataset> 458dnl # 459dnl # Then the data written to this ZFS pool is compressed by QAT accelerator 460dnl # automatically, and de-compressed by QAT when read from the pool. 461dnl # 462dnl # 1) Get QAT hardware statistics with: 463dnl # cat /proc/icp_dh895xcc_dev/qat 464dnl # 2) To disable QAT: 465dnl # insmod zfs.ko zfs_qat_disable=1 466dnl # 467AC_DEFUN([ZFS_AC_QAT], [ 468 AC_ARG_WITH([qat], 469 AS_HELP_STRING([--with-qat=PATH], 470 [Path to qat source]), 471 AS_IF([test "$withval" = "yes"], 472 AC_MSG_ERROR([--with-qat=PATH requires a PATH]), 473 [qatsrc="$withval"])) 474 475 AC_ARG_WITH([qat-obj], 476 AS_HELP_STRING([--with-qat-obj=PATH], 477 [Path to qat build objects]), 478 [qatbuild="$withval"]) 479 480 AS_IF([test ! -z "${qatsrc}"], [ 481 AC_MSG_CHECKING([qat source directory]) 482 AC_MSG_RESULT([$qatsrc]) 483 QAT_SRC="${qatsrc}/quickassist" 484 AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ 485 AC_MSG_ERROR([ 486 *** Please make sure the qat driver package is installed 487 *** and specify the location of the qat source with the 488 *** '--with-qat=PATH' option then try again. Failed to 489 *** find cpa.h in: 490 ${QAT_SRC}/include]) 491 ]) 492 ]) 493 494 AS_IF([test ! -z "${qatsrc}"], [ 495 AC_MSG_CHECKING([qat build directory]) 496 AS_IF([test -z "$qatbuild"], [ 497 qatbuild="${qatsrc}/build" 498 ]) 499 500 AC_MSG_RESULT([$qatbuild]) 501 QAT_OBJ=${qatbuild} 502 AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [ 503 AC_MSG_ERROR([ 504 *** Please make sure the qat driver is installed then try again. 505 *** Failed to find icp_qa_al.ko or qat_api.ko in: 506 $QAT_OBJ]) 507 ]) 508 509 AC_SUBST(QAT_SRC) 510 AC_SUBST(QAT_OBJ) 511 512 AC_DEFINE(HAVE_QAT, 1, 513 [qat is enabled and existed]) 514 ]) 515 516 dnl # 517 dnl # Detect the name used for the QAT Module.symvers file. 518 dnl # 519 AS_IF([test ! -z "${qatsrc}"], [ 520 AC_MSG_CHECKING([qat file for module symbols]) 521 QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers 522 523 AS_IF([test -r $QAT_SYMBOLS], [ 524 AC_MSG_RESULT([$QAT_SYMBOLS]) 525 AC_SUBST(QAT_SYMBOLS) 526 ],[ 527 AC_MSG_ERROR([ 528 *** Please make sure the qat driver is installed then try again. 529 *** Failed to find Module.symvers in: 530 $QAT_SYMBOLS 531 ]) 532 ]) 533 ]) 534]) 535 536dnl # 537dnl # Basic toolchain sanity check. 538dnl # 539AC_DEFUN([ZFS_AC_KERNEL_TEST_MODULE], [ 540 AC_MSG_CHECKING([whether modules can be built]) 541 ZFS_LINUX_TRY_COMPILE([], [], [ 542 AC_MSG_RESULT([yes]) 543 ],[ 544 AC_MSG_RESULT([no]) 545 if test "x$enable_linux_builtin" != xyes; then 546 AC_MSG_ERROR([ 547 *** Unable to build an empty module. 548 ]) 549 else 550 AC_MSG_ERROR([ 551 *** Unable to build an empty module. 552 *** Please run 'make scripts' inside the kernel source tree.]) 553 fi 554 ]) 555]) 556 557dnl # 558dnl # ZFS_LINUX_CONFTEST_H 559dnl # 560AC_DEFUN([ZFS_LINUX_CONFTEST_H], [ 561test -d build/$2 || mkdir -p build/$2 562cat - <<_ACEOF >build/$2/$2.h 563$1 564_ACEOF 565]) 566 567dnl # 568dnl # ZFS_LINUX_CONFTEST_C 569dnl # 570AC_DEFUN([ZFS_LINUX_CONFTEST_C], [ 571test -d build/$2 || mkdir -p build/$2 572cat confdefs.h - <<_ACEOF >build/$2/$2.c 573$1 574_ACEOF 575]) 576 577dnl # 578dnl # ZFS_LINUX_CONFTEST_MAKEFILE 579dnl # 580dnl # $1 - test case name 581dnl # $2 - add to top-level Makefile 582dnl # $3 - additional build flags 583dnl # 584AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [ 585 test -d build || mkdir -p build 586 test -d build/$1 || mkdir -p build/$1 587 588 file=build/$1/Makefile 589 590 dnl # Example command line to manually build source. 591 cat - <<_ACEOF >$file 592# Example command line to manually build source 593# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1 594 595ccflags-y := -Werror $FRAME_LARGER_THAN 596_ACEOF 597 598 dnl # Additional custom CFLAGS as requested. 599 m4_ifval($3, [echo "ccflags-y += $3" >>$file], []) 600 601 dnl # Test case source 602 echo "obj-m := $1.o" >>$file 603 604 AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], []) 605]) 606 607dnl # 608dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY]) 609dnl # 610m4_define([ZFS_LINUX_TEST_PROGRAM], [ 611#include <linux/module.h> 612$1 613 614int 615main (void) 616{ 617$2 618 ; 619 return 0; 620} 621 622MODULE_DESCRIPTION("conftest"); 623MODULE_AUTHOR(ZFS_META_AUTHOR); 624MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); 625MODULE_LICENSE($3); 626]) 627 628dnl # 629dnl # ZFS_LINUX_TEST_REMOVE 630dnl # 631dnl # Removes the specified test source and results. 632dnl # 633AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [ 634 test -d build/$1 && rm -Rf build/$1 635 test -f build/Makefile && sed '/$1/d' build/Makefile 636]) 637 638dnl # 639dnl # ZFS_LINUX_COMPILE 640dnl # 641dnl # $1 - build dir 642dnl # $2 - test command 643dnl # $3 - pass command 644dnl # $4 - fail command 645dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes' 646dnl # $6 - set KBUILD_MODPOST_WARN='yes' 647dnl # 648dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST} 649dnl # 650AC_DEFUN([ZFS_LINUX_COMPILE], [ 651 AC_ARG_VAR([KERNEL_CC], [C compiler for 652 building kernel modules]) 653 AC_ARG_VAR([KERNEL_LD], [Linker for 654 building kernel modules]) 655 AC_ARG_VAR([KERNEL_LLVM], [Binary option to 656 build kernel modules with LLVM/CLANG toolchain]) 657 AC_TRY_COMMAND([ 658 KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6" 659 make modules -k -j$TEST_JOBS ${KERNEL_CC:+CC=$KERNEL_CC} ${KERNEL_LD:+LD=$KERNEL_LD} ${KERNEL_LLVM:+LLVM=$KERNEL_LLVM} -C $LINUX_OBJ $ARCH_UM 660 M=$PWD/$1 >$1/build.log 2>&1]) 661 AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4]) 662]) 663 664dnl # 665dnl # ZFS_LINUX_TEST_COMPILE 666dnl # 667dnl # Perform a full compile excluding the final modpost phase. 668dnl # 669AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [ 670 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 671 mv $2/Makefile $2/Makefile.compile.$1 672 mv $2/build.log $2/build.log.$1 673 ],[ 674 AC_MSG_ERROR([ 675 *** Unable to compile test source to determine kernel interfaces.]) 676 ], [yes], []) 677]) 678 679dnl # 680dnl # ZFS_LINUX_TEST_MODPOST 681dnl # 682dnl # Perform a full compile including the modpost phase. This may 683dnl # be an incremental build if the objects have already been built. 684dnl # 685AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [ 686 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 687 mv $2/Makefile $2/Makefile.modpost.$1 688 cat $2/build.log >>build/build.log.$1 689 ],[ 690 AC_MSG_ERROR([ 691 *** Unable to modpost test source to determine kernel interfaces.]) 692 ], [], [yes]) 693]) 694 695dnl # 696dnl # Perform the compilation of the test cases in two phases. 697dnl # 698dnl # Phase 1) attempt to build the object files for all of the tests 699dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not 700dnl # perform the final modpost stage. 701dnl # 702dnl # Phase 2) disable all tests which failed the initial compilation, 703dnl # then invoke the final modpost step for the remaining tests. 704dnl # 705dnl # This allows us efficiently build the test cases in parallel while 706dnl # remaining resilient to build failures which are expected when 707dnl # detecting the available kernel interfaces. 708dnl # 709dnl # The maximum allowed parallelism can be controlled by setting the 710dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc). 711dnl # 712AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [ 713 dnl # Phase 1 - Compilation only, final linking is skipped. 714 ZFS_LINUX_TEST_COMPILE([$1], [build]) 715 716 dnl # 717 dnl # Phase 2 - When building external modules disable test cases 718 dnl # which failed to compile and invoke modpost to verify the 719 dnl # final linking. 720 dnl # 721 dnl # Test names suffixed with '_license' call modpost independently 722 dnl # to ensure that a single incompatibility does not result in the 723 dnl # modpost phase exiting early. This check is not performed on 724 dnl # every symbol since the majority are compatible and doing so 725 dnl # would significantly slow down this phase. 726 dnl # 727 dnl # When configuring for builtin (--enable-linux-builtin) 728 dnl # fake the linking step artificially create the expected .ko 729 dnl # files for tests which did compile. This is required for 730 dnl # kernels which do not have loadable module support or have 731 dnl # not yet been built. 732 dnl # 733 AS_IF([test "x$enable_linux_builtin" = "xno"], [ 734 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 735 build/Makefile.compile.$1); do 736 name=${dir%/} 737 AS_IF([test -f build/$name/$name.o], [ 738 AS_IF([test "${name##*_}" = "license"], [ 739 ZFS_LINUX_TEST_MODPOST([$1], 740 [build/$name]) 741 echo "obj-n += $dir" >>build/Makefile 742 ], [ 743 echo "obj-m += $dir" >>build/Makefile 744 ]) 745 ], [ 746 echo "obj-n += $dir" >>build/Makefile 747 ]) 748 done 749 750 ZFS_LINUX_TEST_MODPOST([$1], [build]) 751 ], [ 752 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 753 build/Makefile.compile.$1); do 754 name=${dir%/} 755 AS_IF([test -f build/$name/$name.o], [ 756 touch build/$name/$name.ko 757 ]) 758 done 759 ]) 760]) 761 762dnl # 763dnl # ZFS_LINUX_TEST_SRC 764dnl # 765dnl # $1 - name 766dnl # $2 - global 767dnl # $3 - source 768dnl # $4 - extra cflags 769dnl # $5 - check license-compatibility 770dnl # 771dnl # Check if the test source is buildable at all and then if it is 772dnl # license compatible. 773dnl # 774dnl # N.B because all of the test cases are compiled in parallel they 775dnl # must never depend on the results of previous tests. Each test 776dnl # needs to be entirely independent. 777dnl # 778AC_DEFUN([ZFS_LINUX_TEST_SRC], [ 779 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]], 780 [["Dual BSD/GPL"]])], [$1]) 781 ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4]) 782 783 AS_IF([ test -n "$5" ], [ 784 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM( 785 [[$2]], [[$3]], [[$5]])], [$1_license]) 786 ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4]) 787 ]) 788]) 789 790dnl # 791dnl # ZFS_LINUX_TEST_RESULT 792dnl # 793dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC) 794dnl # $2 - run on success (valid .ko generated) 795dnl # $3 - run on failure (unable to compile) 796dnl # 797AC_DEFUN([ZFS_LINUX_TEST_RESULT], [ 798 AS_IF([test -d build/$1], [ 799 AS_IF([test -f build/$1/$1.ko], [$2], [$3]) 800 ], [ 801 AC_MSG_ERROR([ 802 *** No matching source for the "$1" test, check that 803 *** both the test source and result macros refer to the same name. 804 ]) 805 ]) 806]) 807 808dnl # 809dnl # ZFS_LINUX_TEST_ERROR 810dnl # 811dnl # Generic error message which can be used when none of the expected 812dnl # kernel interfaces were detected. 813dnl # 814AC_DEFUN([ZFS_LINUX_TEST_ERROR], [ 815 AC_MSG_ERROR([ 816 *** None of the expected "$1" interfaces were detected. 817 *** This may be because your kernel version is newer than what is 818 *** supported, or you are using a patched custom kernel with 819 *** incompatible modifications. 820 *** 821 *** ZFS Version: $ZFS_META_ALIAS 822 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 823 ]) 824]) 825 826dnl # 827dnl # ZFS_LINUX_TEST_RESULT_SYMBOL 828dnl # 829dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to 830dnl # verify symbol exports, unless --enable-linux-builtin was provided to 831dnl # configure. 832dnl # 833AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [ 834 AS_IF([ ! test -f build/$1/$1.ko], [ 835 $5 836 ], [ 837 AS_IF([test "x$enable_linux_builtin" != "xyes"], [ 838 ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5]) 839 ], [ 840 $4 841 ]) 842 ]) 843]) 844 845dnl # 846dnl # ZFS_LINUX_COMPILE_IFELSE 847dnl # 848AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [ 849 ZFS_LINUX_TEST_REMOVE([conftest]) 850 851 m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])]) 852 m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])], 853 [ZFS_LINUX_CONFTEST_H([], [conftest])]) 854 855 ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no], 856 [m4_ifvaln([$5], [-I$PWD/build/conftest], [])]) 857 ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], []) 858]) 859 860dnl # 861dnl # ZFS_LINUX_TRY_COMPILE 862dnl # 863dnl # $1 - global 864dnl # $2 - source 865dnl # $3 - run on success (valid .ko generated) 866dnl # $4 - run on failure (unable to compile) 867dnl # 868dnl # When configuring as builtin (--enable-linux-builtin) for kernels 869dnl # without loadable module support (CONFIG_MODULES=n) only the object 870dnl # file is created. See ZFS_LINUX_TEST_COMPILE_ALL for details. 871dnl # 872AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [ 873 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 874 ZFS_LINUX_COMPILE_IFELSE( 875 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 876 [[ZFS_META_LICENSE]])], 877 [test -f build/conftest/conftest.o], [$3], [$4]) 878 ], [ 879 ZFS_LINUX_COMPILE_IFELSE( 880 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 881 [[ZFS_META_LICENSE]])], 882 [test -f build/conftest/conftest.ko], [$3], [$4]) 883 ]) 884]) 885 886dnl # 887dnl # ZFS_CHECK_SYMBOL_EXPORT 888dnl # 889dnl # Check if a symbol is exported on not by consulting the symbols 890dnl # file, or optionally the source code. 891dnl # 892AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [ 893 grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ 894 $LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null 895 rc=$? 896 if test $rc -ne 0; then 897 export=0 898 for file in $2; do 899 grep -q -E "EXPORT_SYMBOL.*($1)" \ 900 "$LINUX/$file" 2>/dev/null 901 rc=$? 902 if test $rc -eq 0; then 903 export=1 904 break; 905 fi 906 done 907 if test $export -eq 0; then : 908 $4 909 else : 910 $3 911 fi 912 else : 913 $3 914 fi 915]) 916 917dnl # 918dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL 919dnl # 920dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called 921dnl # to verify symbol exports, unless --enable-linux-builtin was provided 922dnl # to configure. 923dnl # 924AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [ 925 ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) 926 if test $rc -ne 0; then : 927 $6 928 else 929 if test "x$enable_linux_builtin" != xyes; then 930 ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) 931 fi 932 if test $rc -ne 0; then : 933 $6 934 else : 935 $5 936 fi 937 fi 938]) 939 940dnl # 941dnl # ZFS_LINUX_TRY_COMPILE_HEADER 942dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are 943dnl # provided via the fifth parameter 944dnl # 945AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [ 946 ZFS_LINUX_COMPILE_IFELSE( 947 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], [[ZFS_META_LICENSE]])], 948 [test -f build/conftest/conftest.ko], 949 [$3], [$4], [$5]) 950]) 951