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| author | Jerin Jacob <jerin.jacob@caviumnetworks.com> | 2015-11-24 00:15:36 +0530 |
|---|---|---|
| committer | Thomas Monjalon <thomas.monjalon@6wind.com> | 2015-11-25 22:13:15 +0100 |
| commit | da8dcc27f644bf5d895adb4a1d7a5aa38c12a10f (patch) | |
| tree | fc8a06d4e3fabd126175f8ed3ee09702ff28015c /app | |
| parent | f123e3d2ca920ded04aa4346756b937ab88ff699 (diff) | |
| download | dpdk-da8dcc27f644bf5d895adb4a1d7a5aa38c12a10f.zip dpdk-da8dcc27f644bf5d895adb4a1d7a5aa38c12a10f.tar.gz dpdk-da8dcc27f644bf5d895adb4a1d7a5aa38c12a10f.tar.xz | |
hash: use armv8-a CRC32 instructions
armv8-a has optional CRC32 extension, march=armv8-a+crc enables code
generation for the ARMv8-A architecture together with
the optional CRC32 extensions.
added RTE_MACHINE_CPUFLAG_CRC32 to detect the availability of
CRC32 extension in compile time. At run-time, The RTE_CPUFLAG_CRC32
can be used to find the availability.
armv8-a+crc target support added in GCC 4.9,
Used inline assembly and emulated __ARM_FEATURE_CRC32 to work
with tool-chain < 4.9
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Diffstat (limited to 'app')
| -rw-r--r-- | app/test/test_hash.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/app/test/test_hash.c b/app/test/test_hash.c index 4f2509d..2f3d884 100644 --- a/app/test/test_hash.c +++ b/app/test/test_hash.c @@ -217,6 +217,13 @@ test_crc32_hash_alg_equiv(void) printf("Failed checking CRC32_SW against CRC32_SSE42_x64\n"); break; } + + /* Check against 8-byte-operand ARM64 CRC32 if available */ + rte_hash_crc_set_alg(CRC32_ARM64); + if (hash_val != rte_hash_crc(data64, data_len, init_val)) { + printf("Failed checking CRC32_SW against CRC32_ARM64\n"); + break; + } } /* Resetting to best available algorithm */ |