Changes in .gitignore

d198b34f - .gitignore: add SPDX License Identifier

Tue, 03 Mar 2020 13:35:59 +0000

.gitignore: add SPDX License IdentifierAdd SPDX License Identifier to all .gitignore files.Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/lib/raid6/.gitignore

751ba79c - lib/raid6/altivec: Add vpermxor implementation for raid6 Q syndrome

Fri, 04 Aug 2017 03:42:32 +0000

lib/raid6/altivec: Add vpermxor implementation for raid6 Q syndromeThis patch uses the vpermxor instruction to optimise the raid6 Qsyndrome. This instruction was made available with POWER8, ISA version2.07. It allows for both vperm and vxor instructions to be done in asingle instruction. This has been tested for correctness on a ppc64levm with a basic RAID6 setup containing 5 drives.The performance benchmarks are from the raid6test in the/lib/raid6/test directory. These results are from an IBM Firestonemachine with ppc64le architecture. The benchmark results show a 35%speed increase over the best existing algorithm for powerpc (altivec).The raid6test has also been run on a big-endian ppc64 vm to ensure italso works for big-endian architectures.Performance benchmarks: raid6: altivecx4 gen() 18773 MB/s raid6: altivecx8 gen() 19438 MB/s raid6: vpermxor4 gen() 25112 MB/s raid6: vpermxor8 gen() 26279 MB/sSigned-off-by: Matt Brown Reviewed-by: Daniel Axtens [mpe: Add VPERMXOR macro so we can build with old binutils]Signed-off-by: Michael Ellerman List of files: /linux-6.15/lib/raid6/.gitignore

474fd6e8 - RAID/s390: add SIMD implementation for raid6 gen/xor

Tue, 23 Aug 2016 11:30:24 +0000

RAID/s390: add SIMD implementation for raid6 gen/xorUsing vector registers is slightly faster:raid6: vx128x8 gen() 19705 MB/sraid6: vx128x8 xor() 11886 MB/sraid6: using algorithm vx128x8 gen() 19705 MB/sraid6: .... xor() 11886 MB/s, rmw enabledvs the software algorithms:raid6: int64x1 gen() 3018 MB/sraid6: int64x1 xor() 1429 MB/sraid6: int64x2 gen() 4661 MB/sraid6: int64x2 xor() 3143 MB/sraid6: int64x4 gen() 5392 MB/sraid6: int64x4 xor() 3509 MB/sraid6: int64x8 gen() 4441 MB/sraid6: int64x8 xor() 3207 MB/sraid6: using algorithm int64x4 gen() 5392 MB/sraid6: .... xor() 3509 MB/s, rmw enabledSigned-off-by: Martin Schwidefsky List of files: /linux-6.15/lib/raid6/.gitignore

7d11965d - lib/raid6: add ARM-NEON accelerated syndrome calculation

Thu, 16 May 2013 15:20:32 +0000

lib/raid6: add ARM-NEON accelerated syndrome calculationRebased/reworked a patch contributed by Rob Herring that usesNEON intrinsics to perform the RAID-6 syndrome calculations.It uses the existing unroll.awk code to generate severalunrolled versions of which the best performing one is selectedat boot time.Signed-off-by: Ard Biesheuvel Acked-by: Nicolas Pitre Cc: hpa@linux.intel.com List of files: /linux-6.15/lib/raid6/.gitignore

7c44ece9 - Move .gitignore from drivers/md to lib/raid6

Mon, 30 Aug 2010 07:35:52 +0000

Move .gitignore from drivers/md to lib/raid6Another missing bit of the raid6 -> /lib move.Reported-by: Andreas Schwab Signed-off-by: NeilBrown List of files: /linux-6.15/lib/raid6/.gitignore