[dpdk-dev] dpdk checksum

张伟 zhangwqh at 126.com
Thu Jul 6 17:02:04 CEST 2017

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Hi all, 


I have a question regarding dpdk checksum. If the hardware does not support hardware checksum, but the dpdk application sets to allow the hardware do the checksum.  What will happen? Driver will automatically find hardware checksum is not supported,  it will use software calculate the checksum or just ignore the checksum calculation? Does anyone know what case will happen inside DPDK? From my test, hardware checksum and software checksum have similar performance.  So I am very curious why this happens?

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