[dpdk-dev] checksum and vlan insertion seem not working on X520

[dpdk-dev] checksum and vlan insertion seem not working on X520

[Chillance Zen]

Hi ,every one

when I was conducting nic offloading exp,I can not make a x520 nic insert
vlan ,nor checksum,
here is my rx/tx capability:
rx offload capability:9f
tx offload capability:203f

with code like this:
while(1){
nr_mbufs=rte_eth_rx_burst(0,queue_id,mbufs,32);
for(idx=0;idx<nr_mbufs;idx++){
#if 0
buffer=rte_pktmbuf_mtod(mbufs[idx],char*);
ip4=(struct ipv4_hdr*)(buffer+14);
ip4->hdr_checksum=0;
mbufs[idx]->l2_len=14;
mbufs[idx]->l3_len=20;
mbufs[idx]->ol_flags=PKT_TX_IP_CKSUM|PKT_TX_IPV4;
#else
mbufs[idx]->vlan_tci=0xef00;
mbufs[idx]->ol_flags=PKT_TX_VLAN_PKT;
#endif
rte_eth_tx_burst(0,queue_id,&mbufs[idx],1);
}
}

does anybody know what;s wrong with my code?
Thanks & regards
Linc

Re: [dpdk-dev] checksum and vlan insertion seem not working on X520

[Ananyev, Konstantin]

Hi Linc,

Wonder what TX function are you using?
Make sure that you are not using simple TX function that doesn’t support any offloads or multiseg packets.
You need something like that at setup phase:

rte_eth_dev_info_get(port_id, &dev_info);
dev_info.default_txconf.txq_flags = 0;
...
rte_eth_tx_queue_setup(…, &dev_info.default_txconf);

Konstantin

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Chillance Zen
> Sent: Wednesday, March 8, 2017 8:50 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] checksum and vlan insertion seem not working on X520
> 
> Hi ,every one
> 
> when I was conducting nic offloading exp,I can not make a x520 nic insert
> vlan ,nor checksum,
> here is my rx/tx capability:
> rx offload capability:9f
> tx offload capability:203f
> 
> with code like this:
> while(1){
> nr_mbufs=rte_eth_rx_burst(0,queue_id,mbufs,32);
> for(idx=0;idx<nr_mbufs;idx++){
> #if 0
> buffer=rte_pktmbuf_mtod(mbufs[idx],char*);
> ip4=(struct ipv4_hdr*)(buffer+14);
> ip4->hdr_checksum=0;
> mbufs[idx]->l2_len=14;
> mbufs[idx]->l3_len=20;
> mbufs[idx]->ol_flags=PKT_TX_IP_CKSUM|PKT_TX_IPV4;
> #else
> mbufs[idx]->vlan_tci=0xef00;
> mbufs[idx]->ol_flags=PKT_TX_VLAN_PKT;
> #endif
> rte_eth_tx_burst(0,queue_id,&mbufs[idx],1);
> }
> }
> 
> does anybody know what;s wrong with my code?
> Thanks & regards
> Linc

Re: [dpdk-dev] checksum and vlan insertion seem not working on X520

[Chillance Zen]

Hi Konstantin,Thank you sooooooooooooooooooooooooooooo much ,I really
appreciate your suggestion...

it works well now ,I love it.

Linc

On 8 March 2017 at 17:20, Ananyev, Konstantin <konstantin.ananyev@intel.com>
wrote:

> Hi Linc,
>
> Wonder what TX function are you using?
> Make sure that you are not using simple TX function that doesn’t support
> any offloads or multiseg packets.
> You need something like that at setup phase:
>
> rte_eth_dev_info_get(port_id, &dev_info);
> dev_info.default_txconf.txq_flags = 0;
> ...
> rte_eth_tx_queue_setup(…, &dev_info.default_txconf);
>
> Konstantin
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Chillance Zen
> > Sent: Wednesday, March 8, 2017 8:50 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] checksum and vlan insertion seem not working on X520
> >
> > Hi ,every one
> >
> > when I was conducting nic offloading exp,I can not make a x520 nic insert
> > vlan ,nor checksum,
> > here is my rx/tx capability:
> > rx offload capability:9f
> > tx offload capability:203f
> >
> > with code like this:
> > while(1){
> > nr_mbufs=rte_eth_rx_burst(0,queue_id,mbufs,32);
> > for(idx=0;idx<nr_mbufs;idx++){
> > #if 0
> > buffer=rte_pktmbuf_mtod(mbufs[idx],char*);
> > ip4=(struct ipv4_hdr*)(buffer+14);
> > ip4->hdr_checksum=0;
> > mbufs[idx]->l2_len=14;
> > mbufs[idx]->l3_len=20;
> > mbufs[idx]->ol_flags=PKT_TX_IP_CKSUM|PKT_TX_IPV4;
> > #else
> > mbufs[idx]->vlan_tci=0xef00;
> > mbufs[idx]->ol_flags=PKT_TX_VLAN_PKT;
> > #endif
> > rte_eth_tx_burst(0,queue_id,&mbufs[idx],1);
> > }
> > }
> >
> > does anybody know what;s wrong with my code?
> > Thanks & regards
> > Linc
>



-- 
Linc @bjtu