Re: Redirect from NIC to TAP
David Ahern <[email protected]>
| Newsgroups | org.kernel.vger.xdp-newbies |
|---|---|
| Message-ID | <[email protected]> |
On 2/9/21 2:41 AM, Maciej Fijalkowski wrote: > On Tue, Feb 09, 2021 at 11:26:06AM +0200, Radu Stoenescu wrote: >> Hello >> >> My physical NIC is a Netronome (I can come back with exact model type >> and driver version). >> >> Redirect NIC to TAP doesn't work when XDP is attached in driver mode. >> It works when they are both in generic mode. I haven't tried other >> combinations of attachment modes (one driver, other generic etc.). > If the driver supports XDP_REDIRECT, it does work. Take a look at this slide deck for gotcha's with this use case: https://netdevconf.info/0x14/pub/slides/24/netdev-0x14-XDP-and-the-cloud.pdf