[dpdk-users] When do we get non-contiguous mbufs from rte_eth_rx_burst?

Lazarenko, Vlad (WorldQuant) Vlad.Lazarenko at worldquant.com
Thu Feb 9 23:17:56 CET 2017


Hey everyone,

Does anyone happen to know if it is possible to receive non-contiguous mbufs from rte_eth_rx_burst? If so, when would this happen? I am thinking that NICs with LSO enabled could possibly do this if data does not fit into  RTE_MBUF_DEFAULT_BUF_SIZE? But if the packet fits, I don't see why the driver could possibly split that across multiple mbufs. Any insight is highly appreciated.

Thanks,
Vlad



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