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authorGayatri Kammela <gayatri.kammela@intel.com>2016-08-13 04:03:20 +0300
committerShaohua Li <shli@fb.com>2016-09-21 19:09:44 +0300
commit13c520b2993c9faae6770264d33ff1e1ea4c2ceb (patch)
treea366455fe39c82e9c522151fbcd8c73c1636d65e /include/linux/raid
parente0a491c1296874a1aca51cc68452f12a4d950029 (diff)
downloadlinux-13c520b2993c9faae6770264d33ff1e1ea4c2ceb.tar.xz
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>
Diffstat (limited to 'include/linux/raid')
-rw-r--r--include/linux/raid/pq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 0c529a55b52e..1abd89584568 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -118,6 +118,7 @@ struct raid6_recov_calls {
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;