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Add AltiVec RAID-Z

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Implements the RAID-Z function using AltiVec SIMD.
This is basically the NEON code translated to AltiVec.

Note that the 'fletcher' algorithm requires 64-bits
operations, and the initial implementations of AltiVec
(PPC74xx a.k.a. G4, PPC970 a.k.a. G5) only has up to
32-bits operations, so no 'fletcher'.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Romain Dolbeau <romain.dolbeau@european-processor-initiative.eu>
Closes #9539
This commit is contained in:
Romain Dolbeau
2020-01-23 20:01:24 +01:00
committed by Brian Behlendorf
parent 1a69856034
commit 35b07497c6
12 changed files with 5200 additions and 1 deletions
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include/sys/vdev_raidz_impl.h
+4 -1
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@@ -90,7 +90,7 @@ typedef boolean_t (*will_work_f)(void);
typedef void (*init_impl_f)(void);
typedef void (*fini_impl_f)(void);
#define RAIDZ_IMPL_NAME_MAX (16)
#define RAIDZ_IMPL_NAME_MAX (20)
typedef struct raidz_impl_ops {
init_impl_f init;
@@ -152,6 +152,9 @@ extern const raidz_impl_ops_t vdev_raidz_avx512bw_impl;
extern const raidz_impl_ops_t vdev_raidz_aarch64_neon_impl;
extern const raidz_impl_ops_t vdev_raidz_aarch64_neonx2_impl;
#endif
#if defined(__powerpc__)
extern const raidz_impl_ops_t vdev_raidz_powerpc_altivec_impl;
#endif
/*
* Commonly used raidz_map helpers