Commit Graph

5 Commits

Author SHA1 Message Date
Yuanhan Liu 4f8c55c5ad lib/raid6: build proper files on corresponding arch
sse and avx2 stuff only exist on x86 arch, and we don't need to build
altivec on x86. And we can do that at lib/raid6/Makefile.

Proposed-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-12-13 19:51:04 +11:00
Yuanhan Liu 2c935842bd lib/raid6: Add AVX2 optimized gen_syndrome functions
Add AVX2 optimized gen_syndrom functions, which is simply based on
sse2.c written by hpa.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-12-13 19:51:03 +11:00
Jim Kukunas 7056741fd9 lib/raid6: Add AVX2 optimized recovery functions
Optimize RAID6 recovery functions to take advantage of
the 256-bit YMM integer instructions introduced in AVX2.

The patch was tested and benchmarked before submission.
However hardware is not yet released so benchmark numbers
cannot be reported.

Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-12-13 16:42:01 +11:00
Jim Kukunas 2dbf708448 lib/raid6: update test program for recovery functions
Test each combination of recovery and syndrome generation
functions.

Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2012-05-22 13:54:23 +10:00
David Woodhouse cc4589ebfa Rename raid6 files now they're in a 'raid6' directory.
Linus asks 'why "raid6" twice?'. No reason.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-11 00:19:05 +01:00