434 lines
12 KiB
Plaintext
434 lines
12 KiB
Plaintext
dnl #
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dnl # 2.6.39 API change,
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dnl # blk_start_plug() and blk_finish_plug()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [
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ZFS_LINUX_TEST_SRC([blk_plug], [
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#include <linux/blkdev.h>
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],[
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struct blk_plug plug __attribute__ ((unused));
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blk_start_plug(&plug);
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blk_finish_plug(&plug);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [
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AC_MSG_CHECKING([whether struct blk_plug is available])
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ZFS_LINUX_TEST_RESULT([blk_plug], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([blk_plug])
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])
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])
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dnl #
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dnl # 2.6.32 - 4.11: statically allocated bdi in request_queue
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dnl # 4.12: dynamically allocated bdi in request_queue
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI], [
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ZFS_LINUX_TEST_SRC([blk_queue_bdi], [
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#include <linux/blkdev.h>
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],[
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struct request_queue q;
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struct backing_dev_info bdi;
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q.backing_dev_info = &bdi;
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_BDI], [
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AC_MSG_CHECKING([whether blk_queue bdi is dynamic])
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ZFS_LINUX_TEST_RESULT([blk_queue_bdi], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_BDI_DYNAMIC, 1,
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[blk queue backing_dev_info is dynamic])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 5.9: added blk_queue_update_readahead(),
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dnl # 5.15: renamed to disk_update_readahead()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_UPDATE_READAHEAD], [
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ZFS_LINUX_TEST_SRC([blk_queue_update_readahead], [
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#include <linux/blkdev.h>
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],[
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struct request_queue q;
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blk_queue_update_readahead(&q);
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])
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ZFS_LINUX_TEST_SRC([disk_update_readahead], [
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#include <linux/blkdev.h>
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],[
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struct gendisk disk;
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disk_update_readahead(&disk);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_UPDATE_READAHEAD], [
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AC_MSG_CHECKING([whether blk_queue_update_readahead() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_update_readahead], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_UPDATE_READAHEAD, 1,
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[blk_queue_update_readahead() exists])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether disk_update_readahead() exists])
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ZFS_LINUX_TEST_RESULT([disk_update_readahead], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_DISK_UPDATE_READAHEAD, 1,
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[disk_update_readahead() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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])
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dnl #
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dnl # 5.19: bdev_max_discard_sectors() available
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dnl # 2.6.32: blk_queue_discard() available
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD], [
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ZFS_LINUX_TEST_SRC([bdev_max_discard_sectors], [
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev __attribute__ ((unused)) = NULL;
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unsigned int error __attribute__ ((unused));
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error = bdev_max_discard_sectors(bdev);
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])
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ZFS_LINUX_TEST_SRC([blk_queue_discard], [
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#include <linux/blkdev.h>
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],[
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struct request_queue r;
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struct request_queue *q = &r;
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int value __attribute__ ((unused));
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memset(q, 0, sizeof(r));
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value = blk_queue_discard(q);
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],[-Wframe-larger-than=8192])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_DISCARD], [
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AC_MSG_CHECKING([whether bdev_max_discard_sectors() is available])
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ZFS_LINUX_TEST_RESULT([bdev_max_discard_sectors], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BDEV_MAX_DISCARD_SECTORS, 1,
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[bdev_max_discard_sectors() is available])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether blk_queue_discard() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_discard], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_DISCARD, 1,
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[blk_queue_discard() is available])
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_discard])
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])
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])
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])
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dnl #
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dnl # 5.19: bdev_max_secure_erase_sectors() available
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dnl # 4.8: blk_queue_secure_erase() available
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dnl # 2.6.36: blk_queue_secdiscard() available
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE], [
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ZFS_LINUX_TEST_SRC([bdev_max_secure_erase_sectors], [
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#include <linux/blkdev.h>
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],[
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struct block_device *bdev __attribute__ ((unused)) = NULL;
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unsigned int error __attribute__ ((unused));
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error = bdev_max_secure_erase_sectors(bdev);
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])
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ZFS_LINUX_TEST_SRC([blk_queue_secure_erase], [
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#include <linux/blkdev.h>
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],[
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struct request_queue r;
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struct request_queue *q = &r;
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int value __attribute__ ((unused));
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memset(q, 0, sizeof(r));
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value = blk_queue_secure_erase(q);
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],[-Wframe-larger-than=8192])
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ZFS_LINUX_TEST_SRC([blk_queue_secdiscard], [
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#include <linux/blkdev.h>
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],[
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struct request_queue r;
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struct request_queue *q = &r;
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int value __attribute__ ((unused));
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memset(q, 0, sizeof(r));
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value = blk_queue_secdiscard(q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE], [
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AC_MSG_CHECKING([whether bdev_max_secure_erase_sectors() is available])
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ZFS_LINUX_TEST_RESULT([bdev_max_secure_erase_sectors], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BDEV_MAX_SECURE_ERASE_SECTORS, 1,
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[bdev_max_secure_erase_sectors() is available])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether blk_queue_secure_erase() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_secure_erase], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_SECURE_ERASE, 1,
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[blk_queue_secure_erase() is available])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether blk_queue_secdiscard() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_secdiscard], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_SECDISCARD, 1,
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[blk_queue_secdiscard() is available])
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_secure_erase])
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])
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])
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])
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])
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dnl #
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dnl # 4.16 API change,
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dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET], [
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ZFS_LINUX_TEST_SRC([blk_queue_flag_set], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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],[
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struct request_queue *q = NULL;
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blk_queue_flag_set(0, q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
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AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_flag_set], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1,
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[blk_queue_flag_set() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR], [
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ZFS_LINUX_TEST_SRC([blk_queue_flag_clear], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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],[
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struct request_queue *q = NULL;
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blk_queue_flag_clear(0, q);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
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AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_flag_clear], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1,
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[blk_queue_flag_clear() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 2.6.36 API change,
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dnl # Added blk_queue_flush() interface, while the previous interface
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dnl # was available to all the new one is GPL-only. Thus in addition to
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dnl # detecting if this function is available we determine if it is
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dnl # GPL-only. If the GPL-only interface is there we implement our own
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dnl # compatibility function, otherwise we use the function. The hope
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dnl # is that long term this function will be opened up.
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dnl #
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dnl # 4.7 API change,
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dnl # Replace blk_queue_flush with blk_queue_write_cache
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH], [
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ZFS_LINUX_TEST_SRC([blk_queue_flush], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q __attribute__ ((unused)) = NULL;
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(void) blk_queue_flush(q, REQ_FLUSH);
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], [], [ZFS_META_LICENSE])
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ZFS_LINUX_TEST_SRC([blk_queue_write_cache], [
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#include <linux/kernel.h>
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#include <linux/blkdev.h>
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], [
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struct request_queue *q __attribute__ ((unused)) = NULL;
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blk_queue_write_cache(q, true, true);
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], [], [ZFS_META_LICENSE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLUSH], [
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AC_MSG_CHECKING([whether blk_queue_flush() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_flush], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLUSH, 1,
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[blk_queue_flush() is available])
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AC_MSG_CHECKING([whether blk_queue_flush() is GPL-only])
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ZFS_LINUX_TEST_RESULT([blk_queue_flush_license], [
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_FLUSH_GPL_ONLY, 1,
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[blk_queue_flush() is GPL-only])
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])
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],[
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AC_MSG_RESULT(no)
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])
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dnl #
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dnl # 4.7 API change
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dnl # Replace blk_queue_flush with blk_queue_write_cache
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dnl #
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AC_MSG_CHECKING([whether blk_queue_write_cache() exists])
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ZFS_LINUX_TEST_RESULT([blk_queue_write_cache], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE, 1,
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[blk_queue_write_cache() exists])
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AC_MSG_CHECKING([whether blk_queue_write_cache() is GPL-only])
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ZFS_LINUX_TEST_RESULT([blk_queue_write_cache_license], [
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_QUEUE_WRITE_CACHE_GPL_ONLY, 1,
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[blk_queue_write_cache() is GPL-only])
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])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 2.6.34 API change
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dnl # blk_queue_max_hw_sectors() replaces blk_queue_max_sectors().
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS], [
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ZFS_LINUX_TEST_SRC([blk_queue_max_hw_sectors], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q __attribute__ ((unused)) = NULL;
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(void) blk_queue_max_hw_sectors(q, BLK_SAFE_MAX_SECTORS);
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], [])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS], [
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AC_MSG_CHECKING([whether blk_queue_max_hw_sectors() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_max_hw_sectors], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([blk_queue_max_hw_sectors])
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])
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])
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dnl #
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dnl # 2.6.34 API change
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dnl # blk_queue_max_segments() consolidates blk_queue_max_hw_segments()
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dnl # and blk_queue_max_phys_segments().
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS], [
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ZFS_LINUX_TEST_SRC([blk_queue_max_segments], [
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#include <linux/blkdev.h>
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], [
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struct request_queue *q __attribute__ ((unused)) = NULL;
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(void) blk_queue_max_segments(q, BLK_MAX_SEGMENTS);
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], [])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS], [
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AC_MSG_CHECKING([whether blk_queue_max_segments() is available])
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ZFS_LINUX_TEST_RESULT([blk_queue_max_segments], [
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AC_MSG_RESULT(yes)
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], [
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ZFS_LINUX_TEST_ERROR([blk_queue_max_segments])
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])
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])
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dnl #
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dnl # See if kernel supports block multi-queue and blk_status_t.
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dnl # blk_status_t represents the new status codes introduced in the 4.13
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dnl # kernel patch:
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dnl #
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dnl # block: introduce new block status code type
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dnl #
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dnl # We do not currently support the "old" block multi-queue interfaces from
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dnl # prior kernels.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_MQ], [
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ZFS_LINUX_TEST_SRC([blk_mq], [
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#include <linux/blk-mq.h>
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], [
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struct blk_mq_tag_set tag_set __attribute__ ((unused)) = {0};
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(void) blk_mq_alloc_tag_set(&tag_set);
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return BLK_STS_OK;
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], [])
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ZFS_LINUX_TEST_SRC([blk_mq_rq_hctx], [
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#include <linux/blk-mq.h>
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#include <linux/blkdev.h>
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], [
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struct request rq = {0};
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struct blk_mq_hw_ctx *hctx = NULL;
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rq.mq_hctx = hctx;
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], [])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_MQ], [
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AC_MSG_CHECKING([whether block multiqueue with blk_status_t is available])
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ZFS_LINUX_TEST_RESULT([blk_mq], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_MQ, 1, [block multiqueue is available])
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AC_MSG_CHECKING([whether block multiqueue hardware context is cached in struct request])
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ZFS_LINUX_TEST_RESULT([blk_mq_rq_hctx], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_MQ_RQ_HCTX, 1, [block multiqueue hardware context is cached in struct request])
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], [
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AC_MSG_RESULT(no)
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])
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], [
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE], [
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_BDI
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_UPDATE_READAHEAD
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_DISCARD
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_SECURE_ERASE
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_SET
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLAG_CLEAR
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_FLUSH
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_HW_SECTORS
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ZFS_AC_KERNEL_SRC_BLK_QUEUE_MAX_SEGMENTS
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ZFS_AC_KERNEL_SRC_BLK_MQ
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])
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AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE], [
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ZFS_AC_KERNEL_BLK_QUEUE_PLUG
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ZFS_AC_KERNEL_BLK_QUEUE_BDI
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ZFS_AC_KERNEL_BLK_QUEUE_UPDATE_READAHEAD
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ZFS_AC_KERNEL_BLK_QUEUE_DISCARD
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ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR
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ZFS_AC_KERNEL_BLK_QUEUE_FLUSH
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
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ZFS_AC_KERNEL_BLK_MQ
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])
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