lib/raid6: Add AVX512 optimized recovery functions
Optimize RAID6 recovery functions to take advantage of
the 512-bit ZMM integer instructions introduced in AVX512.
AVX512 optimized recovery functions, which is simply based
on recov_avx2.c written by Jim Kukunas
This patch was tested and benchmarked before submission on
a hardware that has AVX512 flags to support such instructions
Cc: Jim Kukunas <james.t.kukunas@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index f5f090c..149d947 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -98,6 +98,9 @@
EXPORT_SYMBOL_GPL(raid6_datap_recov);
const struct raid6_recov_calls *const raid6_recov_algos[] = {
+#ifdef CONFIG_AS_AVX512
+ &raid6_recov_avx512,
+#endif
#ifdef CONFIG_AS_AVX2
&raid6_recov_avx2,
#endif