From: Staffan Wiklund <staffan491@gmail.com> To: users@dpdk.org Subject: [dpdk-users] Distribution of received packets to CPU cores when using AF_XDP PMD in DPDK? Date: Mon, 21 Jun 2021 07:40:44 +0200 Message-ID: <CAAV4wTgyLdRYwp5qUTFmh5azLRWyXcsY5SgghBm5PU-K0z21Ww@mail.gmail.com> (raw) Hi I wonder if you please can help me with a question about the AF_XDP Poll Mode Driver which is integrated in DPDK. 1) How does this driver distribute received packets to the CPU Cores? If for example the EAL parameter -l is set to 4,5 does this mean that received packets are processed by CPU cores 4 and 5 and the AF_XDP PMD distributes the received packets evenly on these cores? 2) Is a round-robin principle used for selecting which core that shall handle a received packet? 3) Is RSS (Receive Side Scaling) not used when using the AF_XDP PMD drive in DPDK? Thanks Staffan
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