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

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

[Archit Pandey]

Hello team,


I'm unable to run any DPDK application due to the links bound to DPDK 
being down. I have tried unbinding and rebinding the links, and setting 
them up manually through testpmd. I'm facing this issue on dpdk 19.11. 
Please find my interface details below:

Network devices using DPDK-compatible driver
============================================
0000:00:04.0 'Ethernet Controller X710/X557-AT 10GBASE-T 1589' 
drv=igb_uio unused=i40e
0000:00:05.0 'Ethernet Controller X710/X557-AT 10GBASE-T 1589' 
drv=igb_uio unused=i40e

Network devices using kernel driver
===================================
0000:00:03.0 '82540EM Gigabit Ethernet Controller 100e' if=ens3 
drv=e1000 unused=igb_uio *Active*

Any help in debugging the issue would be greatly appreciated!

-- 
Archit Pandey
Senior Year Undergraduate Student
Department of Computer Science and Engineering
National Institute of Technology Karnataka
Surathkal, India

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

[Archit Pandey]

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?

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

I would really appreciate help in debugging this issue.

--
Archit Pandey
Senior Year Undergraduate Student
Department of Computer Science and Engineering
National Institute of Technology Karnataka
Surathkal, India

On Wed, 8 Jan 2020, 10:47 pm Archit Pandey, <architpandeynitk@gmail.com>
wrote:

> Hello team,
>
>
> I'm unable to run any DPDK application due to the links bound to DPDK
> being down. I have tried unbinding and rebinding the links, and setting
> them up manually through testpmd. I'm facing this issue on dpdk 19.11.
> Please find my interface details below:
>
> Network devices using DPDK-compatible driver
> ============================================
> 0000:00:04.0 'Ethernet Controller X710/X557-AT 10GBASE-T 1589'
> drv=igb_uio unused=i40e
> 0000:00:05.0 'Ethernet Controller X710/X557-AT 10GBASE-T 1589'
> drv=igb_uio unused=i40e
>
> Network devices using kernel driver
> ===================================
> 0000:00:03.0 '82540EM Gigabit Ethernet Controller 100e' if=ens3
> drv=e1000 unused=igb_uio *Active*
>
> Any help in debugging the issue would be greatly appreciated!
>
> --
> Archit Pandey
> Senior Year Undergraduate Student
> Department of Computer Science and Engineering
> National Institute of Technology Karnataka
> Surathkal, India
>
>

Re: [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@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

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

[Muhammad Zain-ul-Abideen]

Kindly update the i40 driver. I faced a similar issue with X710. It does
that some time. Updating/Downgrading driver does the trick

On Thu, Jan 9, 2020, 11:21 PM Vincent Li <vincent.mc.li@gmail.com> wrote:

> On Thu, Jan 9, 2020 at 5:43 AM Archit Pandey <architpandeynitk@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
>