04 Feb, 2015

1 commit

• 75aaf4c3e   x86/raid6: correctly check for assembler capabilities ... Browse Code »

  Just like for AVX2 (which simply needs an #if -> #ifdef conversion),
  SSSE3 assembler support should be checked for before using it.

  Signed-off-by: Jan Beulich
  Cc: Jim Kukunas
  Acked-by: Thomas Gleixner
  Signed-off-by: NeilBrown

  Jan Beulich

  2015-02-04 05:35:51 +0800  

13 Dec, 2012

2 commits

• 4f8c55c5a   lib/raid6: build proper files on corresponding arch ... Browse Code »

  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
  Signed-off-by: Yuanhan Liu
  Reviewed-by: H. Peter Anvin
  Signed-off-by: Jim Kukunas
  Signed-off-by: NeilBrown

  Yuanhan Liu

  2012-12-13 16:51:04 +0800  
• 7056741fd   lib/raid6: Add AVX2 optimized recovery functions ... Browse Code »

  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"
  Signed-off-by: Jim Kukunas
  Signed-off-by: NeilBrown

  Jim Kukunas

  2012-12-13 13:42:01 +0800