Hi, ok seems the ddp profiles are persistent when unbinding and rebinding the dpdk / linux drivers. However it seems like the ddp profile is not used for rss hashing when i bind the i40e driver and run some test (e.g. PPPoE traffic). Are there any plans to support ddp profiles for rss hashing when i40e is used without dpdk ? Thanks. Von: Rami Rosen Gesendet: Sonntag, 26. August 2018 22:46 An: Sebastian Foss Cc: dts@dpdk.org Betreff: Re: [dts] DDP / testpmd setup Hi, Sebastian, Regarding rebinding, there are two types: One is with dpdk-devbind -b i40e pci_id_of_port And the second is the ribust one: rmmod i40e and then modprobe i40e. I am not sure as to which of the two you aim when talking about rebinding. I would suggest to start with the first option. It triggers calling the probe() callback of I40E, and not the full longer and heavier way with I40E module_exit() and module_init() callbacks Regarding userspace app for achieving it: you can follow the dpdk testpmd code, but this can take quite a time and effort. Regards, Rami Rosen בתאריך יום א׳, 26 באוג׳ 2018, 22:57, מאת Sebastian Foss ‏ >: 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 > Gesendet: Sonntag, 26. August 2018 20:59 An: sfo@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. Regards, Rami Rosen http://ramirose.wix.com/ramirosen On Sun, Aug 26, 2018 at 3:18 PM Sebastian Foss > wrote: Hi, 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 -- regards, Rami Rosen