From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-1.mimecast.com ([207.211.31.81]:40809 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726000AbgFBQBt (ORCPT ); Tue, 2 Jun 2020 12:01:49 -0400 Received: by mail-ej1-f70.google.com with SMTP id r11so672995ejd.1 for ; Tue, 02 Jun 2020 09:01:44 -0700 (PDT) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= Subject: Re: XDP_REDIRECT with xsks_map and dev_map In-Reply-To: References: <87d06hzvr8.fsf@toke.dk> Date: Tue, 02 Jun 2020 18:01:40 +0200 Message-ID: <877dwpmp7f.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: xdp-newbies-owner@vger.kernel.org List-ID: Content-Transfer-Encoding: 8bit To: maharishi bhargava Cc: xdp-newbies@vger.kernel.org maharishi bhargava writes: > On Tue 2 Jun, 2020, 14:31 Toke Høiland-Jørgensen, wrote: >> >> maharishi bhargava writes: >> >> > Hi, in my XDP program, I want to redirect some packets using AF_XDP >> > and redirect other packets directly from driver space. >> > Redirection through AF_XDP works fine, but redirection through dev map >> > stops after some packets are processed. >> >> Do you mean it stops even if you are *only* redirecting to a devmap, or >> if you are first redirecting a few packets to AF_XDP, then to devmap? >> >> Also, which driver(s) are the physical NICs you're redirecting to/from >> using, and which kernel version are you on? >> >> -Toke > > > > Currently, I'm trying to redirect packets only using devmap. But also > have code for redirection using AF_XDP(only when a given condition is > satisfied). A DPDK program is running in userspace which will receive > packets from AF_XDP. Right, so it's just devmap redirect that breaks. What do you mean 'redirection stops', exactly? How are you seeing this? Does xdp_monitor (from samples/bpf) report any exceptions? -Toke