t; Subject: [Intel-wired-lan] [PATCH net] ixgbe: fix potential RX buffer
> starvation for AF_XDP
>
> When the RX rings are created they are also populated with buffers so that
> packets can be received. Usually these are kernel buffers, but for AF_XDP in
> zero-copy mode, these are
On Wed, 30 Jan 2019 15:16:15 +0100, Björn Töpel wrote:
> Den ons 30 jan. 2019 kl 10:35 skrev Magnus Karlsson:
> >
> > On Tue, Jan 29, 2019 at 8:15 PM Jakub Kicinski wrote:
> > >
> > > I may not understand the problem fully, but isn't it kind of normal
> > > that if you create a ring empty you'll n
On Wed, Jan 30, 2019 at 3:16 PM Björn Töpel wrote:
>
> Den ons 30 jan. 2019 kl 10:35 skrev Magnus Karlsson
> :
> >
> > On Tue, Jan 29, 2019 at 8:15 PM Jakub Kicinski
> > wrote:
> [...]
> > >
> > > I may not understand the problem fully, but isn't it kind of normal
> > > that if you create a ring
Den ons 30 jan. 2019 kl 10:35 skrev Magnus Karlsson :
>
> On Tue, Jan 29, 2019 at 8:15 PM Jakub Kicinski
> wrote:
[...]
> >
> > I may not understand the problem fully, but isn't it kind of normal
> > that if you create a ring empty you'll never receive packets? And it
> > should be reasonably eas
On Tue, Jan 29, 2019 at 8:15 PM Jakub Kicinski
wrote:
>
> On Tue, 29 Jan 2019 15:03:50 +0100, Magnus Karlsson wrote:
> > When the RX rings are created they are also populated with buffers so
> > that packets can be received. Usually these are kernel buffers, but
> > for AF_XDP in zero-copy mode, t
On Tue, 29 Jan 2019 15:03:50 +0100, Magnus Karlsson wrote:
> When the RX rings are created they are also populated with buffers so
> that packets can be received. Usually these are kernel buffers, but
> for AF_XDP in zero-copy mode, these are user-space buffers and in this
> case the application mi
When the RX rings are created they are also populated with buffers so
that packets can be received. Usually these are kernel buffers, but
for AF_XDP in zero-copy mode, these are user-space buffers and in this
case the application might not have sent down any buffers to the
driver at this point. And
