[dts] DDP / testpmd setup

Sebastian Foss sfo at ingenieurbuero-foss.de
Sun Aug 26 21:57:17 CEST 2018

Hi Rami,

I found the switch for testpmd to use a cmd line script instead of using interactive mode. Still need to see if loading a ddp persists on the card when rebinding the i40e driver instead of vfio / uio.

The kernel i40e driver also seems to have the functions to use AdminQ to load DDPs onto the card – however im not sure how to do it from userland.



Von: Rami Rosen <ramirose at gmail.com> 
Gesendet: Sonntag, 26. August 2018 20:59
An: sfo at ingenieurbuero-foss.de
Betreff: Re: [dts] DDP / testpmd setup


Hi Sebastian,

I don't know of such a way, unfortunately. Also you cannot automate testpmd

as it is to load the profile automatically without going interactive mode.



Rami Rosen






On Sun, Aug 26, 2018 at 3:18 PM Sebastian Foss <sfo at ingenieurbuero-foss.de <mailto:sfo at ingenieurbuero-foss.de> > wrote:


we are using testpmd to store ddp profiles in an Intel X710DA2 NIC. Is there a way to have those profiles stored in the NIC permanently – or what would be the best solution to have those profiles loaded automatically at boot and use a regular kernel driver afterwards ? From what i understand so far to use the DPDK functions to load a DDP Profile the UIO or VFIO drivers have to be used.


Thank you!


Mit freundlichen Grüßen / Best Regards

Sebastian Foss, Electrical Engineering (B. Eng.)

Hardware & Software Development

Geschäftsführer / CEO

SF Engineering UG & Co. KG





Rami Rosen

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