From patchwork Tue Nov 12 09:29:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhu, Lingshan" X-Patchwork-Id: 1193389 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47C2Zb4CqGz9sNH for ; Tue, 12 Nov 2019 20:32:07 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727132AbfKLJcE (ORCPT ); Tue, 12 Nov 2019 04:32:04 -0500 Received: from mga05.intel.com ([192.55.52.43]:56112 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725834AbfKLJcE (ORCPT ); Tue, 12 Nov 2019 04:32:04 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Nov 2019 01:32:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,295,1569308400"; d="scan'208";a="198017529" Received: from unknown (HELO localhost.localdomain.bj.intel.com) ([10.240.193.79]) by orsmga008.jf.intel.com with ESMTP; 12 Nov 2019 01:31:59 -0800 From: Zhu Lingshan To: mst@redhat.com, jasowang@redhat.com, alex.williamson@redhat.com Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, netdev@vger.kernel.org, dan.daly@intel.com, cunming.liang@intel.com, tiwei.bie@intel.com, jason.zeng@intel.com, zhiyuan.lv@intel.com, Zhu Lingshan Subject: [RFC V3 0/2] Intel IFC VF driver for VDPA Date: Tue, 12 Nov 2019 17:29:47 +0800 Message-Id: <1573550989-40860-1-git-send-email-lingshan.zhu@intel.com> X-Mailer: git-send-email 1.8.3.1 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi all: This series intends to introduce Intel IFC VF NIC driver for Vhost Data Plane Acceleration(VDPA). Here comes two main parts, one is ifcvf_base layer, which handles hardware operations. The other is ifcvf_main layer handles VF initialization, configuration and removal, which depends on and complys to: virtio_mdev https://lkml.org/lkml/2019/11/7/650 vhost_mdev https://lkml.org/lkml/2019/11/7/62 This patchset passed netperf tests. This is RFC V3, plese help review. Changes from V2: removed some unnecessary code. using a struct ifcvf_lm_cfg to address hw->lm_cfg and operations on it. set CONFIG_S_FAILED when ifcvf_start_hw() fail. removed VIRTIO_NET_F_CTRL_VQ and VIRTIO_NET_F_STATUS replace ifcvf_net_config with virtio_net_config. minor changes Changes from V1: using le32_to_cpu() to convert PCI capabilities. some set /get operations will sync with the hardware, eg get_status and get_generation. remove feature bit VHOST_F_LOG_ALL, add VIRTIO_F_ORDERED_PLATFORM add get/set_config functions. split mdev type group into mdev_type_group_virtio and mdev_type_group_vhost add ifcvf_mdev_get_mdev_features() coding stype changes. Zhu Lingshan (2): This commit introduced ifcvf_base layer, which handles hardware operations and configurations. This commit introduced IFC operations for vdpa, which complys to virtio_mdev and vhost_mdev interfaces, handles IFC VF initialization, configuration and removal. drivers/vhost/ifcvf/ifcvf_base.c | 326 ++++++++++++++++++++++ drivers/vhost/ifcvf/ifcvf_base.h | 129 +++++++++ drivers/vhost/ifcvf/ifcvf_main.c | 579 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 1034 insertions(+) create mode 100644 drivers/vhost/ifcvf/ifcvf_base.c create mode 100644 drivers/vhost/ifcvf/ifcvf_base.h create mode 100644 drivers/vhost/ifcvf/ifcvf_main.c