Sorry my bad. The mbuf size has been accidentally changed to 3000. After fixing this by setting mbuf size to 2048, multi-segment mbuf still doesn't work. I was trying to send 2500-byte packets to the target system and was expecting to see two-segment mbuf chain), but got errors on it.
Tue Mar 22 14:52:00 2016^@PMD: rte_enic_pmd: packet error Tue Mar 22 14:52:01 2016^@PMD: rte_enic_pmd: packet error Tue Mar 22 14:52:02 2016^@PMD: rte_enic_pmd: packet error Tue Mar 22 14:52:03 2016^@PMD: rte_enic_pmd: packet error Tue Mar 22 14:52:04 2016^@PMD: rte_enic_pmd: packet error Is enic supporting multi-segment mbuf? The dpdk version is 2.0.0. I have enabled jumbo-frame and enable_scatter for the port. On Tue, Mar 22, 2016 at 3:27 AM, Bruce Richardson < bruce.richardson at intel.com> wrote: > On Mon, Mar 21, 2016 at 04:34:50PM -0700, Clarylin L wrote: > > I am trying multi-segment mbuf, but it seems not working. > > > > On my target host, the mbuf size is set to 2048 and I am trying to send > > large packet to it (say 2500 bytes without fragmentation) from another > > host. I enabled both jumbo_frame and enable_scatter for the port. But I > saw > > on the target only one mbuf is received with data_len equal to 2500 (it's > > supposed to be a two-mbuf chain). Although mbuf itself is not working as > > expected, ping between two hosts succeeded (large ping size; no > > fragmentation). > > > > 1. my mbuf size is only 2048. how can it support receiving such large > > packet in one mbuf? > > > > 2.how to make it work as expected (enable multi-segment mbuf and receive > > using mbuf chain when needed)? > > > > Appreciate your help. > > Hi, > > when you get the single mbuf with data_len == 2500, what is the buf_len > value > reported as? > > /Bruce >
