From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin KaFai Lau Subject: [PATCH v3 net-next 0/9] bpf: xdp: Report bpf_prog ID in IFLA_XDP Date: Thu, 15 Jun 2017 17:29:08 -0700 Message-ID: <20170616002917.2976329-1-kafai@fb.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Alexei Starovoitov , Daniel Borkmann , To: Return-path: Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:46439 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751739AbdFPA3W (ORCPT ); Thu, 15 Jun 2017 20:29:22 -0400 Received: from pps.filterd (m0001255.ppops.net [127.0.0.1]) by mx0b-00082601.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v5G0LZ9e031839 for ; Thu, 15 Jun 2017 17:29:21 -0700 Received: from mail.thefacebook.com ([199.201.64.23]) by mx0b-00082601.pphosted.com with ESMTP id 2b3vst1jq9-6 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Thu, 15 Jun 2017 17:29:21 -0700 Received: from facebook.com (2401:db00:11:d09a:face:0:41:0) by mx-out.facebook.com (2401:db00:2050:5102:face:0000:003b:0000) with ESMTP id d5a3cfa6522a11e78e776fbdf6e974f4-a8b398f0 for ; Thu, 15 Jun 2017 17:29:18 -0700 Sender: netdev-owner@vger.kernel.org List-ID: This is the first usage of the new bpf_prog ID. It is for reporting the ID of a xdp_prog through netlink. It rides on the existing IFLA_XDP. This patch adds IFLA_XDP_PROG_ID for the bpf_prog ID reporting. It starts with changing the generic_xdp first. After that, the hardware driver is changed one by one. Jakub Kicinski mentioned that he will soon introduce XDP_ATTACHED_HW (on top of the existing XDP_ATTACHED_DRV and XDP_ATTACHED_SKB) and he is going to reuse the prog_attached for this purpose. Hence, this patch set keeps the prog_attached even though !!prog_id also implies there is xdp_prog attached. I have tested with generic_xdp, mlx4 and mlx5. v3: 1. Replace 'if' by '?' when checking the xdp_prog pointer as suggested by Jakub Kicinski (thanks!) v2: 1. Remove READ_ONCE since it is alredy under rtnl lock 2. Keep prog_attached in 'struct netdev_xdp' as requested by Jakub Kicinski. The existing prog_attached and the new prog_id are put under a struct for XDP_QUERY_PROG. Martin KaFai Lau (9): net: Add IFLA_XDP_PROG_ID bpf: mlx4: Report bpf_prog ID during XDP_QUERY_PROG bpf: mlx5e: Report bpf_prog ID during XDP_QUERY_PROG bpf: virtio_net: Report bpf_prog ID during XDP_QUERY_PROG bpf: bnxt: Report bpf_prog ID during XDP_QUERY_PROG bpf: thunderx: Report bpf_prog ID during XDP_QUERY_PROG bpf: ixgbe: Report bpf_prog ID during XDP_QUERY_PROG bpf: nfp: Report bpf_prog ID during XDP_QUERY_PROG bpf: qede: Report bpf_prog ID during XDP_QUERY_PROG drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 1 + drivers/net/ethernet/cavium/thunder/nicvf_main.c | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 ++ drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 21 ++++++++++++++--- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 15 +++++++++--- .../net/ethernet/netronome/nfp/nfp_net_common.c | 1 + drivers/net/ethernet/qlogic/qede/qede_filter.c | 1 + drivers/net/virtio_net.c | 13 +++++++---- include/linux/netdevice.h | 7 ++++-- include/uapi/linux/if_link.h | 1 + net/core/dev.c | 19 ++++++++------- net/core/rtnetlink.c | 27 +++++++++++++++++----- 12 files changed, 82 insertions(+), 27 deletions(-) -- 2.9.3