Hai Chae-yong Chong, Thanks on the reply.
But I'm nor actually forwarding packets. I'm crafting my own packets in mbuf's (74 byte packets all) and sending it using ret = rte_eth_tx_burst(port_ids[lcore_id], 0, m_pool,burst_size); When burst_size is 1, it does work. Work in the sense the NIC will continue with sending packets, at a little over 50 percent of the link rate. For 1000 Mbps link rate .....The observed transmit rate of the NIC is 580 Mbps (using Intel DPDK). When the NIC sends out some hundred thousand packets , billions are getting dropped as well. I don't care about the billions getting dropped, but it should be possible to achieve at least 900 Mbps transmit rate with Intel DPDK and I350 on 1 Gbps link. Could someone help me out on this ? Thanks and regards On Sun, Apr 13, 2014 at 10:44 AM, Chae-yong Chong <cychong at gmail.com> wrote: > I think if you just forward the packets there should be no tx failure. If > you instruct the core to send the packet in burst, the tx rate is higher > than 10Gbps as the core is too powerful. > > --- > Sent from Boxer | http://getboxer.com <http://bit.ly/1hRkK2W> > On April 11, 2014 at 7:16:47 PM GMT+9, sabu kurian <sabu2kurian at gmail.com> > wrote: > > To add to my previous mail..... > > only upto 544 packets are actually sent... then it fails > > > On Fri, Apr 11, 2014 at 3:34 PM, sabu kurian wrote: > > > Hi Friends, > > > > Thanks for the reply. > > > > This is the portion of the code where the I350 fails to send packet: > > > > for(;;){ > > > > ret = rte_eth_tx_burst(port_ids[lcore_id], 0, m_pool, > > burst_size); > > > > if (unlikely(ret < burst_size)) { > > for(j=ret;j<(burst_size-ret);j++) > > { > > rte_pktmbuf_free(m_pool[j]); > > } > > } > > else > > { > > > > lcore_stats[lcore_id].tx += (uint64_t)burst_size; > > } > > > > } > > > > all of the m_pool were allocated using > > > > for(j=0;j> { > > > m_pool[j] = rte_pktmbuf_alloc(pktmbuf_pool); > > > > } > > > > > > > > > > On Fri, Apr 11, 2014 at 1:26 PM, Thomas Monjalon < > > thomas.monjalon at 6wind.com> wrote: > > > >> Hi, > >> > >> 2014-04-11 11:29, sabu kurian: > >> > Even after installing all the required igb drivers for I350 (the > device > >> > seems to work perfect on the host machine), am unable to transmit > >> packets > >> > using the same device (on Intel DPDK) using > >> > >> Please follow this documentation to setup your environment and do some > >> basic > >> tests with testpmd: > >> http://dpdk.org/doc/quick-start > >> > >> -- > >> Thomas > >> > > > > > >
