diff options
Diffstat (limited to 'config')
| -rw-r--r-- | config/kernel.m4 | 90 | ||||
| -rw-r--r-- | config/zfs-build.m4 | 3 |
2 files changed, 93 insertions, 0 deletions
diff --git a/config/kernel.m4 b/config/kernel.m4 index 25271cedc..71c88aa36 100644 --- a/config/kernel.m4 +++ b/config/kernel.m4 @@ -4,6 +4,7 @@ dnl # AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ ZFS_AC_KERNEL ZFS_AC_SPL + ZFS_AC_QAT ZFS_AC_TEST_MODULE ZFS_AC_KERNEL_OBJTOOL ZFS_AC_KERNEL_CONFIG @@ -470,6 +471,95 @@ AC_DEFUN([ZFS_AC_SPL], [ ]) dnl # +dnl # Detect the QAT module to be built against +dnl # QAT provides hardware acceleration for data compression: +dnl # https://01.org/intel-quickassist-technology +dnl # * Download and install QAT driver from the above link +dnl # * Start QAT driver in your system: +dnl # service qat_service start +dnl # * Enable QAT in ZFS, e.g.: +dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 +dnl # make +dnl # * Set GZIP compression in ZFS dataset: +dnl # zfs set compression = gzip <dataset> +dnl # Then the data written to this ZFS pool is compressed +dnl # by QAT accelerator automatically, and de-compressed by +dnl # QAT when read from the pool. +dnl # * Get QAT hardware statistics by: +dnl # cat /proc/icp_dh895xcc_dev/qat +dnl # * To disable QAT: +dnl # insmod zfs.ko zfs_qat_disable=1 +dnl # +AC_DEFUN([ZFS_AC_QAT], [ + AC_ARG_WITH([qat], + AS_HELP_STRING([--with-qat=PATH], + [Path to qat source]), + AS_IF([test "$withval" = "yes"], + AC_MSG_ERROR([--with-qat=PATH requires a PATH]), + [qatsrc="$withval"])) + + AC_ARG_WITH([qat-obj], + AS_HELP_STRING([--with-qat-obj=PATH], + [Path to qat build objects]), + [qatbuild="$withval"]) + + AS_IF([test ! -z "${qatsrc}"], [ + AC_MSG_CHECKING([qat source directory]) + AC_MSG_RESULT([$qatsrc]) + QAT_SRC="${qatsrc}/quickassist" + AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ + AC_MSG_ERROR([ + *** Please make sure the qat driver package is installed + *** and specify the location of the qat source with the + *** '--with-qat=PATH' option then try again. Failed to + *** find cpa.h in: + ${QAT_SRC}/include]) + ]) + ]) + + AS_IF([test ! -z "${qatsrc}"], [ + AC_MSG_CHECKING([qat build directory]) + AS_IF([test -z "$qatbuild"], [ + qatbuild="${qatsrc}/build" + ]) + + AC_MSG_RESULT([$qatbuild]) + QAT_OBJ=${qatbuild} + AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko"], [ + AC_MSG_ERROR([ + *** Please make sure the qat driver is installed then try again. + *** Failed to find icp_qa_al.ko in: + $QAT_OBJ]) + ]) + + AC_SUBST(QAT_SRC) + AC_SUBST(QAT_OBJ) + + AC_DEFINE(HAVE_QAT, 1, + [qat is enabled and existed]) + ]) + + dnl # + dnl # Detect the name used for the QAT Module.symvers file. + dnl # + AS_IF([test ! -z "${qatsrc}"], [ + AC_MSG_CHECKING([qat file for module symbols]) + QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers + + AS_IF([test -r $QAT_SYMBOLS], [ + AC_MSG_RESULT([$QAT_SYMBOLS]) + AC_SUBST(QAT_SYMBOLS) + ],[ + AC_MSG_ERROR([ + *** Please make sure the qat driver is installed then try again. + *** Failed to find Module.symvers in: + $QAT_SYMBOLS]) + ]) + ]) + ]) +]) + +dnl # dnl # Basic toolchain sanity check. dnl # AC_DEFUN([ZFS_AC_TEST_MODULE], [ diff --git a/config/zfs-build.m4 b/config/zfs-build.m4 index 6c5f13240..7651dc2c1 100644 --- a/config/zfs-build.m4 +++ b/config/zfs-build.m4 @@ -81,6 +81,9 @@ AC_DEFUN([ZFS_AC_CONFIG], [ [test "x$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 # |