https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Skylake-DMA-config-question-move-and-generate-CRC-32/m-p/1183255#M8133 <P>Hi,</P><P>per Purely QuickData programming guide (Document Number: 561480, Revision: 1.0)&nbsp;the Skylake DMA can support several operation types: standard DMA operation, block fill, DMA with DIF insert,&nbsp;Move &amp; Generate CRC-32 and many more.</P><P>current Linux driver support only the standard DMA operation. see&nbsp;https://github.com/intel/mOS/tree/master/drivers/dma/ioat</P><P>&nbsp;</P><P>has anyone configured/used the DMA to do any DMA move plus CRC generation?. this looks like a cool way to save cycles on CRC calculation, by offloading it to the DMA engine.</P><P>thanks.</P><P>&nbsp;</P> Thu, 06 Feb 2020 12:59:19 GMT aric1 2020-02-06T12:59:19Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Skylake-DMA-config-question-move-and-generate-CRC-32/m-p/1183255#M8133 <P>Hi,</P><P>per Purely QuickData programming guide (Document Number: 561480, Revision: 1.0)&nbsp;the Skylake DMA can support several operation types: standard DMA operation, block fill, DMA with DIF insert,&nbsp;Move &amp; Generate CRC-32 and many more.</P><P>current Linux driver support only the standard DMA operation. see&nbsp;https://github.com/intel/mOS/tree/master/drivers/dma/ioat</P><P>&nbsp;</P><P>has anyone configured/used the DMA to do any DMA move plus CRC generation?. this looks like a cool way to save cycles on CRC calculation, by offloading it to the DMA engine.</P><P>thanks.</P><P>&nbsp;</P> Thu, 06 Feb 2020 12:59:19 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Skylake-DMA-config-question-move-and-generate-CRC-32/m-p/1183255#M8133 aric1 2020-02-06T12:59:19Z