netdev - Re: New xdpsock sample

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Message-ID: <5A49B013-706A-4FCB-996B-D21721F501CF@fb.com>
Date:   Thu, 28 Mar 2019 14:29:31 +0000
From:   Jonathan Lemon <bsd@...com>
To:     Björn Töpel <bjorn.topel@...il.com>
CC:     Maxim Mikityanskiy <maximmi@...lanox.com>,
        Magnus Karlsson <magnus.karlsson@...il.com>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Björn Töpel <bjorn.topel@...el.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Eran Ben Elisha <eranbe@...lanox.com>,
        Tariq Toukan <tariqt@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: Re: New xdpsock sample


> On Mar 28, 2019, at 5:35 AM, Björn Töpel <bjorn.topel@...il.com> wrote:
> 
> Magnus and I took the route to simplify the sample, to make it easier
> for new users. I still think that was the right path. Should there be
> a sample showcasing all the knobs/pulleys? 

One problem I ran into yesterday is that the bpf program is dependent on the xsks_map and qidconf_map layout. There really isn’t a way to simply drop a new bpf program in without duplicating chunks of the sample code. So in that respect, the original code was clearer.
— 
Jonathan