From patchwork Mon Dec 19 15:41:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13076722 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 651B1C46467 for ; Mon, 19 Dec 2022 15:42:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231783AbiLSPmZ (ORCPT ); Mon, 19 Dec 2022 10:42:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232283AbiLSPmX (ORCPT ); Mon, 19 Dec 2022 10:42:23 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83E6312083; Mon, 19 Dec 2022 07:42:22 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 25BC0B80EA3; Mon, 19 Dec 2022 15:42:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 428EAC433EF; Mon, 19 Dec 2022 15:42:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671464539; bh=tZDVjbL0ZWIptwNSQ822sM+4L3GOnBEYSN9bYCt+/R8=; h=From:To:Cc:Subject:Date:From; b=Z9R3pLLvaG4tAk5nWmynGQqmva0Sh2x+pbGmcO+FryktleNpiu7RpJdOXwMKMgPJm lFkEaDWfXwt2bfQxETjM7lk/qslBXHzHzaQ3PHFT/C5LYmDaRtB+08e4OTSkpDUv9t TWD8J9/6l903mX1YwDqbkS8GQr12+Vv1lTE+P8OYG58ErcdXlsuCLRTPOryHTqwvht epICnM02/xatD/NmdOzjlCpMclyY6N/3JCSBfHFQbs0g/BqzRfMp1OIXPpqPW3RrhB Yq6mNPx8ORD2zV8+6l97vCqvw5igLKVpIKzmMviSs1M6Go2qCjQG6F0aaMZhGsLG2K sAVXtEDuwbY4w== From: Lorenzo Bianconi To: bpf@vger.kernel.org Cc: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, davem@davemloft.net, kuba@kernel.org, hawk@kernel.org, pabeni@redhat.com, edumazet@google.com, toke@redhat.com, memxor@gmail.com, alardam@gmail.com, saeedm@nvidia.com, anthony.l.nguyen@intel.com, gospo@broadcom.com, vladimir.oltean@nxp.com, nbd@nbd.name, john@phrozen.org, leon@kernel.org, simon.horman@corigine.com, aelior@marvell.com, christophe.jaillet@wanadoo.fr, ecree.xilinx@gmail.com, grygorii.strashko@ti.com, mst@redhat.com, bjorn@kernel.org, magnus.karlsson@intel.com, maciej.fijalkowski@intel.com, intel-wired-lan@lists.osuosl.org, lorenzo.bianconi@redhat.com Subject: [RFC bpf-next 0/8] xdp: introduce xdp-feature support Date: Mon, 19 Dec 2022 16:41:29 +0100 Message-Id: X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net X-Patchwork-State: RFC Introduce the capability to export the XDP features supported by the NIC. Introduce a XDP compliance test tool (xdp_features) to check the features exported by the NIC match the real features supported by the driver. Allow XDP_REDIRECT of non-linear XDP frames into a devmap. Export XDP features for each XDP capable driver. Kumar Kartikeya Dwivedi (1): libbpf: add API to get XDP/XSK supported features Lorenzo Bianconi (3): tools: uapi: align if_link.h bpf: devmap: check XDP features in bpf_map_update_elem and __xdp_enqueue selftests/bpf: introduce XDP compliance test tool Marek Majtyka (4): net: introduce XDP features flag drivers: net: turn on XDP features xsk: add usage of XDP features flags xsk: add check for full support of XDP in bind .../networking/netdev-xdp-features.rst | 60 ++ drivers/net/ethernet/amazon/ena/ena_netdev.c | 5 + .../net/ethernet/aquantia/atlantic/aq_nic.c | 3 + drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 + drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 2 + .../net/ethernet/cavium/thunder/nicvf_main.c | 2 + .../net/ethernet/freescale/dpaa/dpaa_eth.c | 2 + .../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 1 + .../net/ethernet/freescale/enetc/enetc_pf.c | 3 + .../ethernet/fungible/funeth/funeth_main.c | 6 + drivers/net/ethernet/intel/i40e/i40e_main.c | 9 +- drivers/net/ethernet/intel/ice/ice_main.c | 5 + drivers/net/ethernet/intel/igb/igb_main.c | 9 +- drivers/net/ethernet/intel/igc/igc_main.c | 2 + drivers/net/ethernet/intel/igc/igc_xdp.c | 5 + drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 5 + .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 1 + drivers/net/ethernet/marvell/mvneta.c | 3 + .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 3 + .../ethernet/marvell/octeontx2/nic/otx2_pf.c | 9 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 + .../net/ethernet/mellanox/mlx4/en_netdev.c | 2 + .../net/ethernet/mellanox/mlx5/core/en_main.c | 9 + drivers/net/ethernet/microsoft/mana/mana_en.c | 2 + .../ethernet/netronome/nfp/nfp_net_common.c | 3 + drivers/net/ethernet/qlogic/qede/qede_main.c | 2 + drivers/net/ethernet/sfc/efx.c | 2 + drivers/net/ethernet/sfc/siena/efx.c | 2 + drivers/net/ethernet/socionext/netsec.c | 2 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 1 + drivers/net/ethernet/ti/cpsw.c | 2 + drivers/net/ethernet/ti/cpsw_new.c | 2 + drivers/net/hyperv/netvsc_drv.c | 2 + drivers/net/netdevsim/netdev.c | 1 + drivers/net/tun.c | 3 + drivers/net/veth.c | 4 + drivers/net/virtio_net.c | 5 + drivers/net/xen-netfront.c | 1 + include/linux/netdevice.h | 2 + include/linux/xdp_features.h | 64 ++ include/net/xdp.h | 39 + include/uapi/linux/if_link.h | 7 + include/uapi/linux/if_xdp.h | 1 + include/uapi/linux/xdp_features.h | 34 + kernel/bpf/devmap.c | 25 +- net/core/filter.c | 13 +- net/core/rtnetlink.c | 34 + net/xdp/xsk.c | 4 +- net/xdp/xsk_buff_pool.c | 20 +- tools/include/uapi/linux/if_link.h | 10 + tools/include/uapi/linux/if_xdp.h | 1 + tools/include/uapi/linux/xdp_features.h | 34 + tools/lib/bpf/libbpf.h | 1 + tools/lib/bpf/libbpf.map | 1 + tools/lib/bpf/netlink.c | 62 ++ tools/testing/selftests/bpf/Makefile | 5 +- .../selftests/bpf/progs/test_xdp_features.c | 235 ++++++ .../selftests/bpf/test_xdp_features.sh | 99 +++ tools/testing/selftests/bpf/xdp_features.c | 745 ++++++++++++++++++ tools/testing/selftests/bpf/xsk.c | 3 + 60 files changed, 1602 insertions(+), 24 deletions(-) create mode 100644 Documentation/networking/netdev-xdp-features.rst create mode 100644 include/linux/xdp_features.h create mode 100644 include/uapi/linux/xdp_features.h create mode 100644 tools/include/uapi/linux/xdp_features.h create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_features.c create mode 100755 tools/testing/selftests/bpf/test_xdp_features.sh create mode 100644 tools/testing/selftests/bpf/xdp_features.c