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=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 E4673C7618F for ; Tue, 23 Jul 2019 03:08:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD8EE22389 for ; Tue, 23 Jul 2019 03:08:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="EZ5uFVP0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387866AbfGWDIh (ORCPT ); Mon, 22 Jul 2019 23:08:37 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:36372 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730004AbfGWDIh (ORCPT ); Mon, 22 Jul 2019 23:08:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=sg3Plg5zJYWjcazlM4XTvUKaAwuBuwVRKYnN70fapAw=; b=EZ5uFVP0yJxiMLJCjVPLZZaYj t0ifl0oksG0iGN95nnt3v3sFhL8JU8a6M9c+rOK3lGI8pOxgpJ98WAfv5lfd+NIYXSFbj/y8R8bMf yFju07DY3dJdbUtMQ1MmomfjUbDS7dRBHDg1MzoFPwfCreWBjHcygxtrHYxnjhhbaurEtiJ+wwEE7 q47M95kbLh/tj1ZdJw1ftMgV67Z4hwZC38yANlVM5CY5mh+X+paAQ4cGitJ+rBQNhokM/immJRWNA TP8R+XL1VqQ59rc7Ct7yjn4ORNQc7zJAL3F4f6baiwP/qeV1QrBsEuOih+/6VhhWvFvTj6gGjJbJN rtZVGSMYw==; Received: from willy by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hplAJ-00036Y-8R; Tue, 23 Jul 2019 03:08:35 +0000 From: Matthew Wilcox To: davem@davemloft.net Cc: "Matthew Wilcox (Oracle)" , hch@lst.de, netdev@vger.kernel.org Subject: [PATCH v3 0/7] Convert skb_frag_t to bio_vec Date: Mon, 22 Jul 2019 20:08:24 -0700 Message-Id: <20190723030831.11879-1-willy@infradead.org> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: "Matthew Wilcox (Oracle)" The skb_frag_t and bio_vec are fundamentally the same (page, offset, length) tuple. This patch series unifies the two, leaving the skb_frag_t typedef in place. This has the immediate advantage that we already have iov_iter support for bvecs and don't need to add support for iterating skbuffs. It enables a long-term plan to use bvecs more broadly within the kernel and should make network-storage drivers able to do less work converting between skbuffs and biovecs. It will consume more memory on 32-bit kernels. If that proves problematic, we can look at ways of addressing it. v3: Rebase on latest Linus with net-next merged. - Reorder the uncontroversial 'Use skb accessors' patches first so you can apply just those two if you want to hold off on the full conversion. - Convert all the users of 'struct skb_frag_struct' to skb_frag_t. Matthew Wilcox (Oracle) (7): net: Use skb accessors in network drivers net: Use skb accessors in network core net: Increase the size of skb_frag_t net: Reorder the contents of skb_frag_t net: Rename skb_frag page to bv_page net: Rename skb_frag_t size to bv_len net: Convert skb_frag_t to bio_vec drivers/crypto/chelsio/chtls/chtls_io.c | 6 ++-- drivers/hsi/clients/ssi_protocol.c | 3 +- drivers/infiniband/hw/hfi1/vnic_sdma.c | 2 +- drivers/net/ethernet/3com/3c59x.c | 2 +- drivers/net/ethernet/agere/et131x.c | 6 ++-- drivers/net/ethernet/amd/xgbe/xgbe-desc.c | 2 +- drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 +- .../net/ethernet/apm/xgene/xgene_enet_main.c | 3 +- drivers/net/ethernet/atheros/alx/main.c | 4 +-- .../net/ethernet/atheros/atl1c/atl1c_main.c | 4 +-- .../net/ethernet/atheros/atl1e/atl1e_main.c | 3 +- drivers/net/ethernet/atheros/atlx/atl1.c | 3 +- drivers/net/ethernet/broadcom/bgmac.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- drivers/net/ethernet/brocade/bna/bnad.c | 2 +- drivers/net/ethernet/calxeda/xgmac.c | 2 +- .../net/ethernet/cavium/liquidio/lio_main.c | 23 ++++++------- .../ethernet/cavium/liquidio/lio_vf_main.c | 23 ++++++------- .../ethernet/cavium/thunder/nicvf_queues.c | 4 +-- drivers/net/ethernet/chelsio/cxgb3/sge.c | 2 +- drivers/net/ethernet/cortina/gemini.c | 5 ++- drivers/net/ethernet/emulex/benet/be_main.c | 2 +- drivers/net/ethernet/freescale/enetc/enetc.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 4 +-- drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 +- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 4 +-- .../net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++--- drivers/net/ethernet/huawei/hinic/hinic_tx.c | 2 +- drivers/net/ethernet/ibm/emac/core.c | 2 +- drivers/net/ethernet/intel/e1000/e1000_main.c | 3 +- drivers/net/ethernet/intel/e1000e/netdev.c | 3 +- drivers/net/ethernet/intel/fm10k/fm10k_main.c | 5 +-- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 4 +-- drivers/net/ethernet/intel/i40e/i40e_txrx.h | 2 +- drivers/net/ethernet/intel/iavf/iavf_txrx.c | 4 +-- drivers/net/ethernet/intel/iavf/iavf_txrx.h | 2 +- drivers/net/ethernet/intel/ice/ice_txrx.c | 6 ++-- drivers/net/ethernet/intel/igb/igb_main.c | 5 +-- drivers/net/ethernet/intel/igbvf/netdev.c | 2 +- drivers/net/ethernet/intel/igc/igc_main.c | 5 +-- drivers/net/ethernet/intel/ixgb/ixgb_main.c | 4 +-- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 ++--- .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +- drivers/net/ethernet/jme.c | 5 ++- drivers/net/ethernet/marvell/mvneta.c | 4 +-- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 7 ++-- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 +-- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 4 +-- .../net/ethernet/mellanox/mlx5/core/en_tx.c | 2 +- drivers/net/ethernet/microchip/lan743x_main.c | 5 ++- .../net/ethernet/myricom/myri10ge/myri10ge.c | 10 +++--- .../ethernet/netronome/nfp/nfp_net_common.c | 6 ++-- .../ethernet/qlogic/netxen/netxen_nic_main.c | 4 +-- .../net/ethernet/qlogic/qlcnic/qlcnic_io.c | 2 +- drivers/net/ethernet/qualcomm/emac/emac-mac.c | 12 +++---- .../net/ethernet/synopsys/dwc-xlgmac-desc.c | 2 +- .../net/ethernet/synopsys/dwc-xlgmac-net.c | 2 +- drivers/net/ethernet/tehuti/tehuti.c | 2 +- drivers/net/usb/usbnet.c | 4 +-- drivers/net/vmxnet3/vmxnet3_drv.c | 7 ++-- drivers/net/wireless/ath/wil6210/debugfs.c | 3 +- drivers/net/wireless/ath/wil6210/txrx.c | 9 +++-- drivers/net/wireless/ath/wil6210/txrx_edma.c | 2 +- drivers/net/xen-netback/netback.c | 4 +-- drivers/s390/net/qeth_core_main.c | 2 +- drivers/scsi/fcoe/fcoe_transport.c | 2 +- drivers/staging/octeon/ethernet-tx.c | 5 ++- .../staging/unisys/visornic/visornic_main.c | 4 +-- drivers/target/iscsi/cxgbit/cxgbit_target.c | 13 +++---- include/linux/bvec.h | 5 ++- include/linux/skbuff.h | 34 ++++++------------- net/core/skbuff.c | 26 ++++++++------ net/core/tso.c | 8 ++--- net/ipv4/tcp.c | 14 ++++---- net/kcm/kcmsock.c | 8 ++--- net/tls/tls_device.c | 14 ++++---- 76 files changed, 202 insertions(+), 220 deletions(-) -- 2.20.1