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authorwli5 <weigang.li@intel.com>2017-03-23 08:58:47 +0800
committerBrian Behlendorf <behlendorf1@llnl.gov>2017-03-22 17:58:47 -0700
commit6a9d6359982cbff298dd17f68c3103d1269602fa (patch)
treebb4379c514eee44698a59d03b7a56ffc69973fe9 /config/zfs-build.m4
parentd48be524ce96a1a6011bb658985c5b7087d576d2 (diff)
GZIP compression offloading with QAT accelerator
This patch implement the hardware accelerator method in GZIP compression in ZFS. When the ZFS pool is enabled GZIP compression, the compression API will be automatically transferred to the hardware accelerator to free up CPU resource and speed up the compression time. * To enable Intel QAT hardware acceleration in ZOL you need to have QAT hardware and the driver installed: * QAT hardware DH8950: http://ark.intel.com/products/79483/Intel-QuickAssist-Adapter-8950 * QAT driver: https://01.org/intel-quickassist-technology * Start QAT driver in your system: service qat_service start * Enable QAT in ZFS, e.g.: ./configure --with-qat=<qat-driver-path>/QAT1.6 make * Set GZIP compression in ZFS dataset: zfs set compression = gzip <dataset> * Get QAT hardware statistics by: cat /proc/spl/kstat/zfs/qat * To disable QAT in ZFS: insmod zfs.ko zfs_qat_disable=1 Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Signed-off-by: Weigang Li <weigang.li@intel.com> Closes #5846
Diffstat (limited to 'config/zfs-build.m4')
-rw-r--r--config/zfs-build.m43
1 files changed, 3 insertions, 0 deletions
diff --git a/config/zfs-build.m4 b/config/zfs-build.m4
index 6c5f13240..7651dc2c1 100644
--- a/config/zfs-build.m4
+++ b/config/zfs-build.m4
@@ -81,6 +81,9 @@ AC_DEFUN([ZFS_AC_CONFIG], [
[test "x$enable_linux_builtin" != xyes ])
AM_CONDITIONAL([WANT_DEVNAME2DEVID],
[test "x$user_libudev" = xyes ])
+ AM_CONDITIONAL([CONFIG_QAT],
+ [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+ [test "x$qatsrc" != x ])
])
dnl #