Re: AF_XDP and dma

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On Fri, Apr 9, 2021 at 12:01 PM ratheesh kannoth <ratheesh.ksz@xxxxxxxxx> wrote:
> On Fri, Apr 9, 2021 at 3:13 PM Magnus Karlsson
> <magnus.karlsson@xxxxxxxxx> wrote:
> > The short answer is that you do not have to worry about that at all in
> > user space.
> i am interested in kernel space, where i have to configure these
> memory address (physical) in HW
> >>>DMA is taken care of by the kernel.
> Agreed. For AF_XDP in driver mode (for zero copy mode), I need to
> configure the DMA address.

Only if you are writing your own kernel driver for a NIC. Are you doing that?

> > /Magnus

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