Any pointers to what the issue could be? thanks On Fri, Mar 25, 2016 at 4:13 PM, Clarylin L <clearasu at gmail.com> wrote:
> Hello, > > I am trying to use multi-segment mbuf to receive large packet. I enabled > jumbo_frame and enable_scatter for the port and was expecting mbuf chaining > would be used to receive packets larger than the mbuf size (which was set > to 2048). > > When sending 3000-byte (without fragmentation) packet from another > non-dpdk host, I didn't see packet was received by the ixgbe PMD driver. > > After a quick debugging session I found that the following statement in > ixgbe_recv_scattered_pkts > (ixgbe_rxtx.c) is > always true and break the loop in case of large packet, while it's not the > case for small packet (smaller than mbuf size): > > if (! staterr & rte_cpu_to_le32(IXGBE_RXDADV_STAT_DD)) > break; > > Is enabling jumbo_frame and enable_scatter good enough to get started the > mbuf chaining? > > Appreciate any input! Thanks. >
