[dpdk-dev] RTE CRC hash function
Pashupati Kumar
kumarp at Brocade.COM
Tue Dec 10 04:17:48 CET 2013
Hi,
I am looking at the DPDK implementation for the CRC hash function using Intel intrinsics. Shouldn't the order of the arguments being passed to _mm_crc32_u32 be reversed ?
http://dpdk.org/doc/api/rte__hash__crc_8h.html
For a quick reference, here is the code with Actual and Modified calls.
static inline uint32_t
rte_hash_crc_4byte(uint32_t data, uint32_t init_val)
{
Actual > return _mm_crc32_u32(data, init_val);
Modified > return _mm_crc32_u32(init_val, data);
}
Thanks
Pash
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