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Update spdk crc32.c with ARM CRC32 intrinsics

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Implement spdk_crc32_update() with ARM CRC32 intrinsics.

Change-Id: I6a64122f5dd3b804408cfae61a205e78fd8c4547
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Reviewed-on: https://review.gerrithub.io/c/440828
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Richael Zhuang 2019-01-17 10:04:31 +08:00 committed by Ben Walker
parent 7d1db86f54
commit a23b8c8c0a
1 changed files with 28 additions and 0 deletions
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28
lib/util/crc32.c
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@ -52,6 +52,32 @@ spdk_crc32_table_init(struct spdk_crc32_table *table, uint32_t polynomial_reflec
} }
} }
#ifdef SPDK_HAVE_ARM_CRC
uint32_t
spdk_crc32_update(const struct spdk_crc32_table *table, const void *buf, size_t len, uint32_t crc)
{
size_t count;
const uint64_t *dword_buf;
count = len & 7;
while (count--) {
crc = __crc32b(crc, *(const uint8_t *)buf);
buf++;
}
dword_buf = (const uint64_t *)buf;
count = len / 8;
while (count--) {
crc = __crc32d(crc, *dword_buf);
dword_buf++;
}
return crc;
}
#else
uint32_t uint32_t
spdk_crc32_update(const struct spdk_crc32_table *table, const void *buf, size_t len, uint32_t crc) spdk_crc32_update(const struct spdk_crc32_table *table, const void *buf, size_t len, uint32_t crc)
{ {
@ -64,3 +90,5 @@ spdk_crc32_update(const struct spdk_crc32_table *table, const void *buf, size_t
return crc; return crc;
} }
#endif