[dpdk-dev] Permanently binding NIC ports with DPDK drivers

[Bruce Richardson]

On Wed, Nov 11, 2015 at 04:13:01PM +0000, Montorsi, Francesco wrote:
> Hi,
> Is there a way to permanently (i.e., have the configuration automatically applied after reboot) bind a NIC port to DPDK?
> 
> In case there's none, I'm thinking to save in my software a list of the NIC ports chosen by the user for use with DPDK and then, upon software startup to just do
>     for (int i=0; i < ...; i++)
>      system("dpdk_nic_bind.py --bind=igb_uio " + PCI_device_chosen[i]);
> Do you see any problem with that? 
> 
> Thanks!
> Francesco Montorsi
> 

Hi Francesco,

I'm not aware of any way to make the bindings permanent across reboots. What you
have suggested will work, but there are probably better ways to do the same thing.
For example, a couple of lines in an rc.local script can reapply the bindings at
boot for you. I'm sure others can suggest other ways of having the same effect,
for example, there may be a way to automatically do this using udev or systemd
or some such package.

/Bruce