From patchwork Fri Oct 1 14:02:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ananyev, Konstantin" X-Patchwork-Id: 100288 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 592FCA0032; Fri, 1 Oct 2021 16:05:07 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D4B6041183; Fri, 1 Oct 2021 16:05:06 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by mails.dpdk.org (Postfix) with ESMTP id B18D240040 for ; Fri, 1 Oct 2021 16:05:04 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10123"; a="222241332" X-IronPort-AV: E=Sophos;i="5.85,339,1624345200"; d="scan'208";a="222241332" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Oct 2021 07:03:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,339,1624345200"; d="scan'208";a="709882678" Received: from sivswdev08.ir.intel.com ([10.237.217.47]) by fmsmga005.fm.intel.com with ESMTP; 01 Oct 2021 07:03:27 -0700 From: Konstantin Ananyev To: dev@dpdk.org Cc: xiaoyun.li@intel.com, anoobj@marvell.com, jerinj@marvell.com, ndabilpuram@marvell.com, adwivedi@marvell.com, shepard.siegel@atomicrules.com, ed.czeck@atomicrules.com, john.miller@atomicrules.com, irusskikh@marvell.com, ajit.khaparde@broadcom.com, somnath.kotur@broadcom.com, rahul.lakkireddy@chelsio.com, hemant.agrawal@nxp.com, sachin.saxena@oss.nxp.com, haiyue.wang@intel.com, johndale@cisco.com, hyonkim@cisco.com, qi.z.zhang@intel.com, xiao.w.wang@intel.com, humin29@huawei.com, yisen.zhuang@huawei.com, oulijun@huawei.com, beilei.xing@intel.com, jingjing.wu@intel.com, qiming.yang@intel.com, matan@nvidia.com, viacheslavo@nvidia.com, sthemmin@microsoft.com, longli@microsoft.com, heinrich.kuhn@corigine.com, kirankumark@marvell.com, andrew.rybchenko@oktetlabs.ru, mczekaj@marvell.com, jiawenwu@trustnetic.com, jianwang@trustnetic.com, maxime.coquelin@redhat.com, chenbo.xia@intel.com, thomas@monjalon.net, ferruh.yigit@intel.com, mdr@ashroe.eu, jay.jayatheerthan@intel.com, Konstantin Ananyev Date: Fri, 1 Oct 2021 15:02:48 +0100 Message-Id: <20211001140255.5726-1-konstantin.ananyev@intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210922140953.19388-1-konstantin.ananyev@intel.com> References: <20210922140953.19388-1-konstantin.ananyev@intel.com> Subject: [dpdk-dev] [PATCH v3 0/7] hide eth dev related structures X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" v3 changes: - Changes in public struct naming (Jerin/Haiyue) - Split patches - Update docs - Shamelessly included Andrew's patch: https://patches.dpdk.org/project/dpdk/patch/20210928154856.1015020-1-andrew.rybchenko@oktetlabs.ru/ into these series. I have to do similar thing here, so decided to avoid duplicated effort. The aim of these patch series is to make rte_ethdev core data structures (rte_eth_dev, rte_eth_dev_data, rte_eth_rxtx_callback, etc.) internal to DPDK and not visible to the user. That should allow future possible changes to core ethdev related structures to be transparent to the user and help to improve ABI/API stability. Note that current ethdev API is preserved, but it is a formal ABI break. The work is based on previous discussions at: https://www.mail-archive.com/dev@dpdk.org/msg211405.html https://www.mail-archive.com/dev@dpdk.org/msg216685.html and consists of the following main points: 1. Copy public 'fast' function pointers (rx_pkt_burst(), etc.) and related data pointer from rte_eth_dev into a separate flat array. We keep it public to still be able to use inline functions for these 'fast' calls (like rte_eth_rx_burst(), etc.) to avoid/minimize slowdown. Note that apart from function pointers itself, each element of this flat array also contains two opaque pointers for each ethdev: 1) a pointer to an array of internal queue data pointers 2) points to array of queue callback data pointers. Note that exposing this extra information allows us to avoid extra changes inside PMD level, plus should help to avoid possible performance degradation. 2. Change implementation of 'fast' inline ethdev functions (rte_eth_rx_burst(), etc.) to use new public flat array. While it is an ABI breakage, this change is intended to be transparent for both users (no changes in user app is required) and PMD developers (no changes in PMD is required). One extra note - with new implementation RX/TX callback invocation will cost one extra function call with this changes. That might cause some slowdown for code-path with RX/TX callbacks heavily involved. Hope such trade-off is acceptable for the community. 3. Move rte_eth_dev, rte_eth_dev_data, rte_eth_rxtx_callback and related things into internal header: . That approach was selected to: - Avoid(/minimize) possible performance losses. - Minimize required changes inside PMDs. Performance testing results (ICX 2.0GHz, E810 (ice)): - testpmd macswap fwd mode, plus a) no RX/TX callbacks: no actual slowdown observed b) bpf-load rx 0 0 JM ./dpdk.org/examples/bpf/t3.o: ~2% slowdown - l3fwd: no actual slowdown observed Would like to thank Ferruh and Jerrin for reviewing and testing previous versions of these series. All other interested parties please don't be shy and provide your feedback. Konstantin Ananyev (7): ethdev: allocate max space for internal queue array ethdev: change input parameters for rx_queue_count ethdev: copy ethdev 'fast' API into separate structure ethdev: make burst functions to use new flat array ethdev: add API to retrieve multiple ethernet addresses ethdev: remove legacy Rx descriptor done API ethdev: hide eth dev related structures app/test-pmd/config.c | 23 +- doc/guides/nics/features.rst | 6 +- doc/guides/rel_notes/deprecation.rst | 5 - doc/guides/rel_notes/release_21_11.rst | 21 ++ drivers/common/octeontx2/otx2_sec_idev.c | 2 +- drivers/crypto/octeontx2/otx2_cryptodev_ops.c | 2 +- drivers/net/ark/ark_ethdev_rx.c | 4 +- drivers/net/ark/ark_ethdev_rx.h | 3 +- drivers/net/atlantic/atl_ethdev.h | 2 +- drivers/net/atlantic/atl_rxtx.c | 9 +- drivers/net/bnxt/bnxt_ethdev.c | 8 +- drivers/net/cxgbe/base/adapter.h | 2 +- drivers/net/dpaa/dpaa_ethdev.c | 9 +- drivers/net/dpaa2/dpaa2_ethdev.c | 9 +- drivers/net/dpaa2/dpaa2_ptp.c | 2 +- drivers/net/e1000/e1000_ethdev.h | 10 +- drivers/net/e1000/em_ethdev.c | 1 - drivers/net/e1000/em_rxtx.c | 21 +- drivers/net/e1000/igb_ethdev.c | 2 - drivers/net/e1000/igb_rxtx.c | 21 +- drivers/net/enic/enic_ethdev.c | 12 +- drivers/net/fm10k/fm10k.h | 5 +- drivers/net/fm10k/fm10k_ethdev.c | 1 - drivers/net/fm10k/fm10k_rxtx.c | 29 +- drivers/net/hns3/hns3_rxtx.c | 7 +- drivers/net/hns3/hns3_rxtx.h | 2 +- drivers/net/i40e/i40e_ethdev.c | 1 - drivers/net/i40e/i40e_ethdev_vf.c | 1 - drivers/net/i40e/i40e_rxtx.c | 30 +- drivers/net/i40e/i40e_rxtx.h | 4 +- drivers/net/iavf/iavf_rxtx.c | 4 +- drivers/net/iavf/iavf_rxtx.h | 2 +- drivers/net/ice/ice_rxtx.c | 4 +- drivers/net/ice/ice_rxtx.h | 2 +- drivers/net/igc/igc_ethdev.c | 1 - drivers/net/igc/igc_txrx.c | 23 +- drivers/net/igc/igc_txrx.h | 5 +- drivers/net/ixgbe/ixgbe_ethdev.c | 2 - drivers/net/ixgbe/ixgbe_ethdev.h | 5 +- drivers/net/ixgbe/ixgbe_rxtx.c | 22 +- drivers/net/mlx5/mlx5_rx.c | 26 +- drivers/net/mlx5/mlx5_rx.h | 2 +- drivers/net/netvsc/hn_rxtx.c | 4 +- drivers/net/netvsc/hn_var.h | 3 +- drivers/net/nfp/nfp_rxtx.c | 4 +- drivers/net/nfp/nfp_rxtx.h | 3 +- drivers/net/octeontx2/otx2_ethdev.c | 1 - drivers/net/octeontx2/otx2_ethdev.h | 3 +- drivers/net/octeontx2/otx2_ethdev_ops.c | 20 +- drivers/net/sfc/sfc_ethdev.c | 29 +- drivers/net/thunderx/nicvf_ethdev.c | 3 +- drivers/net/thunderx/nicvf_rxtx.c | 4 +- drivers/net/thunderx/nicvf_rxtx.h | 2 +- drivers/net/txgbe/txgbe_ethdev.h | 3 +- drivers/net/txgbe/txgbe_rxtx.c | 4 +- drivers/net/vhost/rte_eth_vhost.c | 4 +- drivers/net/virtio/virtio_ethdev.c | 1 - lib/ethdev/ethdev_driver.h | 149 +++++++++ lib/ethdev/ethdev_private.c | 83 +++++ lib/ethdev/ethdev_private.h | 7 + lib/ethdev/rte_ethdev.c | 79 +++-- lib/ethdev/rte_ethdev.h | 288 ++++++++++++------ lib/ethdev/rte_ethdev_core.h | 171 +++-------- lib/ethdev/version.map | 6 + lib/eventdev/rte_event_eth_rx_adapter.c | 2 +- lib/eventdev/rte_event_eth_tx_adapter.c | 2 +- lib/eventdev/rte_eventdev.c | 2 +- 67 files changed, 661 insertions(+), 568 deletions(-)