From 474fd6e80fe529e9adeeb7ea9d4e5d6c4da0b7fe Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Tue, 23 Aug 2016 13:30:24 +0200 Subject: RAID/s390: add SIMD implementation for raid6 gen/xor Using vector registers is slightly faster: raid6: vx128x8 gen() 19705 MB/s raid6: vx128x8 xor() 11886 MB/s raid6: using algorithm vx128x8 gen() 19705 MB/s raid6: .... xor() 11886 MB/s, rmw enabled vs the software algorithms: raid6: int64x1 gen() 3018 MB/s raid6: int64x1 xor() 1429 MB/s raid6: int64x2 gen() 4661 MB/s raid6: int64x2 xor() 3143 MB/s raid6: int64x4 gen() 5392 MB/s raid6: int64x4 xor() 3509 MB/s raid6: int64x8 gen() 4441 MB/s raid6: int64x8 xor() 3207 MB/s raid6: using algorithm int64x4 gen() 5392 MB/s raid6: .... xor() 3509 MB/s, rmw enabled Signed-off-by: Martin Schwidefsky --- include/linux/raid/pq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/raid/pq.h') diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index a0118d5..c032a6a 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -103,6 +103,7 @@ extern const struct raid6_calls raid6_avx2x1; extern const struct raid6_calls raid6_avx2x2; extern const struct raid6_calls raid6_avx2x4; extern const struct raid6_calls raid6_tilegx8; +extern const struct raid6_calls raid6_s390vx8; struct raid6_recov_calls { void (*data2)(int, size_t, int, int, void **); -- cgit v1.1