[dpdk-users] Cannot set link up after binding with igb_uio

[Vincent Li]

On Thu, Jan 9, 2020 at 5:43 AM Archit Pandey <architpandeynitk at gmail.com> wrote:
>
> Hello team,
>
> Weirdly this issue gets resolved upon resetting the NICs. Which has led me
> to believe that the problem lies in how the NICs are configured. I'm
> working with Intel x701 NIC with the i40e driver. By any chance is this a
> known issue with these NICs or driver?
>
how did you reset the NIC? could you please be more specific? there is
 fix for ixgbe link status from searching driver commit log, but not
for i40e driver. could you recompile the dpdk with
CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=y  ? it is in
<path-to-dpdk>/x86_64-native-linuxapp-gcc/.config
re-insert the igb_uio, re-bind the NIC after enabling the DEBUG.

you can also try using vfio other than igb_uio




> I have tried upgrading my i40e driver to the recommended version v2.9.21
> for dpdk 19.11, however that did not work.


did any previous dpdk version work other than dpdk 19.11 ?

>
>
> I would really appreciate help in debugging this issue.
>

usually more detail/steps you provided would be helpful to
troubleshoot the issue