Re: [PATCH 2/3 v2] Optimize CRC32C calculation with PCLMULQDQ instruction

2013-02-26 Thread Herbert Xu
On Tue, Feb 26, 2013 at 08:57:41AM -0800, Tim Chen wrote: > > BTW, Herbert, I've also sent you a patch a few days ago to update the > link to the whitepaper on the CRC32C algorithm in the code. Wonder if > you have received it. Thanks. Tim it's in my queue. Cheers, -- Email: Herbert Xu Home P

Re: [PATCH 2/3 v2] Optimize CRC32C calculation with PCLMULQDQ instruction

2013-02-26 Thread Tim Chen
On Tue, 2013-02-26 at 17:54 +0800, Herbert Xu wrote: > On Thu, Sep 27, 2012 at 03:44:22PM -0700, Tim Chen wrote: > > This patch adds the crc_pcl function that calculates CRC32C checksum using > > the > > PCLMULQDQ instruction on processors that support this feature. This will > > provide speedup o

Re: [PATCH 2/3 v2] Optimize CRC32C calculation with PCLMULQDQ instruction

2013-02-26 Thread Herbert Xu
On Thu, Sep 27, 2012 at 03:44:22PM -0700, Tim Chen wrote: > This patch adds the crc_pcl function that calculates CRC32C checksum using the > PCLMULQDQ instruction on processors that support this feature. This will > provide speedup over using CRC32 instruction only. > The usage of PCLMULQDQ necessi