[dpdk-dev] I350 drops packet on rte_eth_tx_burst()

[Chae-yong Chong]

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.    

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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 <sabu2kurian at gmail.com> 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<burst_size;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

>>

>

>