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/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 0c529a5..1abd895 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -118,6 +118,7 @@
extern const struct raid6_recov_calls raid6_recov_intx1;
extern const struct raid6_recov_calls raid6_recov_ssse3;
extern const struct raid6_recov_calls raid6_recov_avx2;
+extern const struct raid6_recov_calls raid6_recov_avx512;
extern const struct raid6_calls raid6_neonx1;
extern const struct raid6_calls raid6_neonx2;