From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C75BDC0650E for ; Wed, 3 Jul 2019 10:19:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9F7002187F for ; Wed, 3 Jul 2019 10:19:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="LJ4cpywQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727282AbfGCKTt (ORCPT ); Wed, 3 Jul 2019 06:19:49 -0400 Received: from mail-lf1-f67.google.com ([209.85.167.67]:36027 "EHLO mail-lf1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726811AbfGCKTJ (ORCPT ); Wed, 3 Jul 2019 06:19:09 -0400 Received: by mail-lf1-f67.google.com with SMTP id q26so1381604lfc.3 for ; Wed, 03 Jul 2019 03:19:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=N64YiOP2YVl5zyPZolUHrk+pThiJwXVkclxV2400gD8=; b=LJ4cpywQ/xDEXzvzPx3lv5wTD8nK1FnzRsjS+SpAP/ku9u/Eucxp0IM0ubt0Lf88CD n0Wt5pfYPGUdkxsnqzyhixYwadc7A3ZzzFNg94W+ySo4vsGGzR5DunUjXbSE3re5Kb1Y Cuh9IpTxCSD1KhslOS9u9hdklo06Zd5y83ViBydoeJcW1t8G06Xs6q3F+8DOc6ewUVvC ZM+v/ABR2xPA2s2rpO6fcgIbRu3EQvuYFogMfF4Q67ACp5frmT58cZaylS/a4KrOJwqY TaiA4h8PMjtNM2Pjn4vLZ7cWQTL2kRj7dfnenF93TULHMrcSIfbqlBdXw1tcsRRv4m3w D8tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=N64YiOP2YVl5zyPZolUHrk+pThiJwXVkclxV2400gD8=; b=YjcUn/nN0S7wD9SuINMJ0L61+s7opS44lCuKiE50YiLebN57r7qRAafiGT96AAqOQW cpUdCEK/cpBSpYRHNIoIuxa7u4/miCjqMd96zwkKDLvNrn27RY9PeoJMxNhZfjQojw6X AlNsUhEkl5gH8uPID51gOVDDAwNFTfY3TqL8FJmCbo9hoJ/jGeyzu7O4K6y9mFmAU7kJ pmvh+bZi48YyQdg5YG3djcp2bOhMIO3jwnmjXqf7z+LvL+iEc4LQyMbLpZ0hXaSi1JX6 WAGwbIBZRKu98fhbY6rr4sKB7ayzthjWtvCJBVGkp7VmcaMDggyYky4uH8KaEq0e4vtG F3yg== X-Gm-Message-State: APjAAAUU8QQFvB3fLF941KhJpqQ5qFys79updSNW02/lCcHLNQ718gvC lMgexHx6KyzYpuW8xIgYIpFSsQ== X-Google-Smtp-Source: APXvYqzdLBy5TYPMJzQqNxFe8fF++4bQDuW89whZy9M57F++RFeRiQmMpPN71lULn5Cx1d6ruJxhfA== X-Received: by 2002:a19:f00a:: with SMTP id p10mr5215455lfc.68.1562149147493; Wed, 03 Jul 2019 03:19:07 -0700 (PDT) Received: from localhost.localdomain (59-201-94-178.pool.ukrtel.net. [178.94.201.59]) by smtp.gmail.com with ESMTPSA id i9sm67267lfl.10.2019.07.03.03.19.05 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 03 Jul 2019 03:19:06 -0700 (PDT) From: Ivan Khoronzhuk To: grygorii.strashko@ti.com, hawk@kernel.org, davem@davemloft.net Cc: ast@kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, xdp-newbies@vger.kernel.org, ilias.apalodimas@linaro.org, netdev@vger.kernel.org, daniel@iogearbox.net, jakub.kicinski@netronome.com, john.fastabend@gmail.com, Ivan Khoronzhuk Subject: [PATCH v6 net-next 0/5] net: ethernet: ti: cpsw: Add XDP support Date: Wed, 3 Jul 2019 13:18:58 +0300 Message-Id: <20190703101903.8411-1-ivan.khoronzhuk@linaro.org> X-Mailer: git-send-email 2.17.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patchset adds XDP support for TI cpsw driver and base it on page_pool allocator. It was verified on af_xdp socket drop, af_xdp l2f, ebpf XDP_DROP, XDP_REDIRECT, XDP_PASS, XDP_TX. It was verified with following configs enabled: CONFIG_JIT=y CONFIG_BPFILTER=y CONFIG_BPF_SYSCALL=y CONFIG_XDP_SOCKETS=y CONFIG_BPF_EVENTS=y CONFIG_HAVE_EBPF_JIT=y CONFIG_BPF_JIT=y CONFIG_CGROUP_BPF=y Link on previous v5: https://lkml.org/lkml/2019/6/30/89 Also regular tests with iperf2 were done in order to verify impact on regular netstack performance, compared with base commit: https://pastebin.com/JSMT0iZ4 v5..v6: - do changes that is rx_dev while redirect/flush cycle is kept the same - dropped net: ethernet: ti: davinci_cpdma: return handler status - other changes desc in patches v4..v5: - added two plreliminary patches: net: ethernet: ti: davinci_cpdma: allow desc split while down net: ethernet: ti: cpsw_ethtool: allow res split while down - added xdp alocator refcnt on xdp level, avoiding page pool refcnt - moved flush status as separate argument for cpdma_chan_process - reworked cpsw code according to last changes to allocator - added missed statistic counter v3..v4: - added page pool user counter - use same pool for ndevs in dual mac - restructured page pool create/destroy according to the last changes in API v2..v3: - each rxq and ndev has its own page pool v1..v2: - combined xdp_xmit functions - used page allocation w/o refcnt juggle - unmapped page for skb netstack - moved rxq/page pool allocation to open/close pair - added several preliminary patches: net: page_pool: add helper function to retrieve dma addresses net: page_pool: add helper function to unmap dma addresses net: ethernet: ti: cpsw: use cpsw as drv data net: ethernet: ti: cpsw_ethtool: simplify slave loops Ivan Khoronzhuk (5): xdp: allow same allocator usage net: ethernet: ti: davinci_cpdma: add dma mapped submit net: ethernet: ti: davinci_cpdma: allow desc split while down net: ethernet: ti: cpsw_ethtool: allow res split while down net: ethernet: ti: cpsw: add XDP support drivers/net/ethernet/ti/Kconfig | 1 + drivers/net/ethernet/ti/cpsw.c | 485 +++++++++++++++++++++--- drivers/net/ethernet/ti/cpsw_ethtool.c | 76 +++- drivers/net/ethernet/ti/cpsw_priv.h | 7 + drivers/net/ethernet/ti/davinci_cpdma.c | 99 ++++- drivers/net/ethernet/ti/davinci_cpdma.h | 7 +- include/net/xdp_priv.h | 2 + net/core/xdp.c | 55 +++ 8 files changed, 656 insertions(+), 76 deletions(-) -- 2.17.1