[dpdk-dev] [PATCH] hash: fix CRC32c computation

[Didier Pallard]

Ok, i will fix the typo and propose a second serie of patch including
unit tests.

thanks

On 02/10/2016 03:35 PM, Pattan, Reshma wrote:
> Hi,
>
> Small typo.
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Didier Pallard
>> Sent: Tuesday, December 22, 2015 9:35 AM
>> To: dev at dpdk.org; Richardson, Bruce <bruce.richardson at intel.com>; De Lara
>> Guarch, Pablo <pablo.de.lara.guarch at intel.com>
>> Subject: [dpdk-dev] [PATCH] hash: fix CRC32c computation
>> diff --git a/lib/librte_hash/rte_hash_crc.h b/lib/librte_hash/rte_hash_crc.h index
>> 78a34b7..485f8a2 100644
>> --- a/lib/librte_hash/rte_hash_crc.h
>> +++ b/lib/librte_hash/rte_hash_crc.h
>> + * Use single crc32 instruction to perform a hash on a byte value.
> "on a byte value" should be ===> "on 2 bytes".
>
>> + * Fall back to software crc32 implementation in case SSE4.2 is
>> + * not supported
>> + *
>> + * @param data
>> + *   Data to perform hash on.
>> + * @param init_val
>> + *   Value to initialise hash generator.
>> + * @return
>> + *   32bit calculated hash value.
>> + */
>> +static inline uint32_t
>> +rte_hash_crc_2byte(uint16_t data, uint32_t init_val) { #if defined
>> +RTE_ARCH_I686 || defined RTE_ARCH_X86_64
>> +	if (likely(crc32_alg & CRC32_SSE42))
>> +		return crc32c_sse42_u16(data, init_val); #endif
>> +
>> +	return crc32c_2bytes(data, init_val);
>> +}
>> +
> Thanks,
> Reshma


-- 
Didier PALLARD
6WIND
Software Engineer

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