From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jakub Kicinski Subject: Re: [RFC bpf-next PATCH] samples/bpf: xdp1 add XDP hardware offload option Date: Tue, 4 Sep 2018 17:09:12 +0200 Message-ID: <20180904170912.2ca43ffa@cakuba> References: <153607315988.23449.13651086600809900701.stgit@firesoul> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Nick Viljoen , oss-drivers@netronome.com, netdev@vger.kernel.org, "John W. Linville" , jhsiao@redhat.com, Quentin Monnet To: Jesper Dangaard Brouer Return-path: Received: from mail-pg1-f196.google.com ([209.85.215.196]:37243 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726225AbeIDTeu (ORCPT ); Tue, 4 Sep 2018 15:34:50 -0400 Received: by mail-pg1-f196.google.com with SMTP id 2-v6so1819002pgo.4 for ; Tue, 04 Sep 2018 08:09:21 -0700 (PDT) In-Reply-To: <153607315988.23449.13651086600809900701.stgit@firesoul> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 04 Sep 2018 16:59:19 +0200, Jesper Dangaard Brouer wrote: > Trying to use XDP hardware offloading via XDP_FLAGS_HW_MODE > and setting the ifindex in prog_load_attr.ifindex before > loading the BPF code via bpf_prog_load_xattr(). > > This unfortunately does not seem to work... > - Am I doing something wrong? > > Notice, I also disable the map BPF_MAP_TYPE_PERCPU_ARRAY > to make sure it was not related to the map (not supporting > offloading). > > Failed with: > # ./xdp1 -O $( libbpf: load bpf program failed: Invalid argument > libbpf: failed to load program 'xdp1' > libbpf: failed to load object './xdp1_kern.o' > > Tested on kernel 4.18.0-2.el8.x86_64 with driver nfp > Ethernet controller: Netronome Systems, Inc. Device 4000 Are you running the BPF capable FW? https://help.netronome.com/support/solutions/articles/36000050009-agilio-ebpf-2-0-6-extended-berkeley-packet-filter