lib/raid6: sort algos in rough performance order
Sort the list of RAID6 algorithms in roughly decreasing order of expected performance: newer instruction sets first (within each architecture) and wider unrollings first. This doesn't make any difference right now, since all functions are benchmarked; a follow-up change will make use of this by optionally choosing the first valid function rather than testing all of them. The Itanium raid6_intx{16,32} entries are also moved down to be near the other raid6_intx entries for clarity. Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Signed-off-by: Shaohua Li <shli@fb.com>
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@ -34,64 +34,64 @@ struct raid6_calls raid6_call;
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EXPORT_SYMBOL_GPL(raid6_call);
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const struct raid6_calls * const raid6_algos[] = {
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#if defined(__ia64__)
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&raid6_intx16,
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&raid6_intx32,
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#endif
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#if defined(__i386__) && !defined(__arch_um__)
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&raid6_mmxx1,
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&raid6_mmxx2,
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&raid6_sse1x1,
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&raid6_sse1x2,
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&raid6_sse2x1,
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&raid6_sse2x2,
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#ifdef CONFIG_AS_AVX2
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&raid6_avx2x1,
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&raid6_avx2x2,
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#endif
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#ifdef CONFIG_AS_AVX512
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&raid6_avx512x1,
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&raid6_avx512x2,
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&raid6_avx512x1,
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#endif
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#ifdef CONFIG_AS_AVX2
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&raid6_avx2x2,
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&raid6_avx2x1,
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#endif
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&raid6_sse2x2,
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&raid6_sse2x1,
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&raid6_sse1x2,
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&raid6_sse1x1,
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&raid6_mmxx2,
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&raid6_mmxx1,
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#endif
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#if defined(__x86_64__) && !defined(__arch_um__)
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&raid6_sse2x1,
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&raid6_sse2x2,
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&raid6_sse2x4,
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#ifdef CONFIG_AS_AVX2
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&raid6_avx2x1,
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&raid6_avx2x2,
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&raid6_avx2x4,
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#endif
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#ifdef CONFIG_AS_AVX512
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&raid6_avx512x1,
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&raid6_avx512x2,
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&raid6_avx512x4,
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&raid6_avx512x2,
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&raid6_avx512x1,
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#endif
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#ifdef CONFIG_AS_AVX2
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&raid6_avx2x4,
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&raid6_avx2x2,
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&raid6_avx2x1,
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#endif
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&raid6_sse2x4,
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&raid6_sse2x2,
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&raid6_sse2x1,
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#endif
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#ifdef CONFIG_ALTIVEC
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&raid6_altivec1,
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&raid6_altivec2,
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&raid6_altivec4,
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&raid6_altivec8,
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&raid6_vpermxor1,
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&raid6_vpermxor2,
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&raid6_vpermxor4,
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&raid6_vpermxor8,
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&raid6_vpermxor4,
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&raid6_vpermxor2,
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&raid6_vpermxor1,
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&raid6_altivec8,
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&raid6_altivec4,
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&raid6_altivec2,
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&raid6_altivec1,
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#endif
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#if defined(CONFIG_S390)
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&raid6_s390vx8,
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#endif
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&raid6_intx1,
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&raid6_intx2,
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&raid6_intx4,
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&raid6_intx8,
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#ifdef CONFIG_KERNEL_MODE_NEON
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&raid6_neonx1,
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&raid6_neonx2,
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&raid6_neonx4,
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&raid6_neonx8,
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&raid6_neonx4,
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&raid6_neonx2,
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&raid6_neonx1,
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#endif
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#if defined(__ia64__)
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&raid6_intx32,
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&raid6_intx16,
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#endif
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&raid6_intx8,
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&raid6_intx4,
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&raid6_intx2,
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&raid6_intx1,
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NULL
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};
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