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* lib/raid6: build proper files on corresponding archYuanhan Liu2012-12-131-5/+18
| | | | | | | | | | | 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>
* lib/raid6: Add AVX2 optimized gen_syndrome functionsYuanhan Liu2012-12-131-1/+11
| | | | | | | | | | 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>
* lib/raid6: Add AVX2 optimized recovery functionsJim Kukunas2012-12-131-1/+1
| | | | | | | | | | | | | 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>
* lib/raid6: update test program for recovery functionsJim Kukunas2012-05-222-12/+22
| | | | | | | | 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>
* Rename raid6 files now they're in a 'raid6' directory.David Woodhouse2010-08-112-0/+196
Linus asks 'why "raid6" twice?'. No reason. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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