oukan ; Saeed
> Mahameed ; Eran Ben Elisha
> Subject: Re: AF_XDP design flaws
>
> On Thu, 7 Mar 2019 at 16:09, Maxim Mikityanskiy
> wrote:
> >
> [...]
> >
> > > Now, onto Max' concerns, from my perspective:
> > >
> > > 1. The kerne
On Thu, 7 Mar 2019 at 16:09, Maxim Mikityanskiy wrote:
>
[...]
>
> > Now, onto Max' concerns, from my perspective:
> >
> > 1. The kernel spins too much in napi mode.
>
> Not just too much, it will do it forever if the application simply doesn't
> act.
>
> > Yes, the i40e driver does spin for thro
On Thu, Mar 07, 2019 at 03:09:33PM +, Maxim Mikityanskiy wrote:
>
> What I'm concerned of is a security hole this feature opens to the systems
> not using AF_XDP.
could you please explain the 'security hole' again because I still don't see
one.
> -Original Message-
> From: Björn Töpel
> Sent: 5 March, 2019 20:26
> To: Maxim Mikityanskiy
> Cc: Jonathan Lemon ; John Fastabend
> ; netdev@vger.kernel.org; Björn Töpel
> ; Magnus Karlsson ; David
> S. Miller ; Tariq Toukan ; Saeed
> Mahameed ; Eran Ben El
On Thu, 28 Feb 2019 at 11:50, Maxim Mikityanskiy wrote:
>
[...]
Back in the saddle! Sorry for the delay!
Ok, let me try to summarize. First, let's go through the current
AF_XDP semantics so that we're all on the same page, and then pull
Max' suggestions in.
Ingress
---
The simplified flow
axim Mikityanskiy ;
> >> netdev@vger.kernel.org; Björn
> >> Töpel ; Magnus Karlsson
> >> ;
> >> David S. Miller ; Tariq Toukan
> >> ;
> >> Saeed Mahameed ; Eran Ben Elisha
> >>
> >> Subject: Re: AF_XDP design fla
Maxim Mikityanskiy ;
> >> netdev@vger.kernel.org; Björn
> >> Töpel ; Magnus Karlsson
> >> ;
> >> David S. Miller ; Tariq Toukan
> >> ;
> >> Saeed Mahameed ; Eran Ben Elisha
> >>
> >> Subject: Re: AF_XDP design flaws
> >>
> >
Elisha
Subject: Re: AF_XDP design flaws
On 2019-02-26 17:41, John Fastabend wrote:
On 2/26/19 6:49 AM, Maxim Mikityanskiy wrote:
Hi everyone,
Hi! It's exciting to see more vendors looking into AF_XDP. ARM was
involved early on, and now Mellanox. :-) It's really important that
the AF
> -Original Message-
> From: Björn Töpel
> Sent: 27 February, 2019 10:09
> To: John Fastabend
> Cc: Maxim Mikityanskiy ; netdev@vger.kernel.org; Björn
> Töpel ; Magnus Karlsson ;
> David S. Miller ; Tariq Toukan ;
> Saeed Mahameed ; Eran Ben Elisha
> Subje
On 2019-02-26 17:41, John Fastabend wrote:
> On 2/26/19 6:49 AM, Maxim Mikityanskiy wrote:
>> Hi everyone,
>>
Hi! It's exciting to see more vendors looking into AF_XDP. ARM was
involved early on, and now Mellanox. :-) It's really important that
the AF_XDP model is a good fit for all drivers/vendor
On 2/26/19 6:49 AM, Maxim Mikityanskiy wrote:
> Hi everyone,
>
> I would like to discuss some design flaws of AF_XDP socket (XSK)
> implementation
> in kernel. At the moment I don't see a way to work around them without
> changing
> the API, so I would like to make sure that I'm not missing anyt
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