Re: [dpdk-dev] Avoid stripping vlan tag with I350 VF on a VM

[Shiantung Wong <shianwong@gmail.com>]

How do I do this on PF?  On my VM, isn't only VF interface is visible,
correct?
Thanks for your reply,
Shian-Tung

On Mon, Dec 1, 2014 at 12:17 PM, Zhu, Heqing <heqing.zhu@intel.com> wrote:

> Did you try to remove the VLAN strip on the PF side?
>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Shiantung Wong
> Sent: Monday, December 01, 2014 11:29 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] Avoid stripping vlan tag with I350 VF on a VM
>
> My application running on a VM needs to deal with multiple VLANS on
> packets received over I350 using Virtual Function. But I always see the
> received packets without vlan tag.
> This is my setup:
>   - host: 3.13.6-031306-generic
>   - QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
>   - guest: 2.6.32-358.el6.x86_64
>   - dpdk: 1.6
>
> And this is how I set up in the VM:
> -------
>     memset(&port_conf, 0, sizeof(port_conf));
>     if (vlanCnt > 0)
>          port_conf.rxmode.hw_vlan_filter = 1;
>
>     port_conf.rxmode.jumbo_frame = 1;
>     port_conf.rxmode.max_rx_pkt_len = 9018;
>
>     ret = rte_eth_dev_configure(port, 1, 1, &port_conf);
>     if (ret < 0) {
>         rte_log(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, "Error on config port%u,
> ret=%d\n",
>                     (unsigned)port, ret);
>         return -1;
>     }
>
>     for(i = 0; i < vlanCnt; i++) {
>         ret = rte_eth_dev_vlan_filter(port, vlan[i], 1);
>         if (ret < 0) {
>             rte_log(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, "Error on config
> port%u, vlan%d ret=%d\n",
>                     (unsigned)port, vlan[i], ret);
>             return -1;
>         }
>     }
> -----
>
> If I also try to explicitly disable the stripping with next, but get an
> error return -ENOSUP.
>
> ret = rte_eth_dev_set_vlan_strip_on_queue(port, 0, 0);
>
> I appreciate anyone can help. on how to set it up.
>
> Thanks,
> Shian Wong
>