From patchwork Sun Oct 22 02:16:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hawkins Jiawei X-Patchwork-Id: 13431614 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1D97CC0032E for ; Sun, 22 Oct 2023 02:17:33 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1quO0y-0005p9-4m; Sat, 21 Oct 2023 22:16:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1quO0w-0005ox-5Q for qemu-devel@nongnu.org; Sat, 21 Oct 2023 22:16:26 -0400 Received: from mail-oi1-x235.google.com ([2607:f8b0:4864:20::235]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1quO0u-0003Kz-LV for qemu-devel@nongnu.org; Sat, 21 Oct 2023 22:16:25 -0400 Received: by mail-oi1-x235.google.com with SMTP id 5614622812f47-3b2e22a4004so1581198b6e.3 for ; Sat, 21 Oct 2023 19:16:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1697940983; x=1698545783; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=h0Nn7ykEFiIg5X13Nkv5CbkqLn8sjkHkKUxeNYr9uEc=; b=IOXK5F6Y4QCKCT255HXLcOyQKm2oGL5ruiPNWR+Yr3BIRdKlU+0KtDCkCbT61rpu5z wX8oV3wUx/s2HZT0TEgCSfbpdEjltn6+koCsYVOUf9IRCVD+uOh8rSzjtTN4cSmSmo1r 3mkyBB54XD185IN+a84wB2QimPg1PGRnVlcOWbGuAncFLJ+sFBfMGfYaHlDtTd8UlYyF zM4drhdsKXbOGOQRcfmek2y6Ny3P8cTNuG99rUp2bcrakwjI21rdLygShtElcMFpy1Yc YP/HA+Y8hQwTCO+4Om6vhI5BRSfzZ17z5Wjv+acfeLJE1Z95UhBSSNY60M3A1RiwxkCv /50w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697940983; x=1698545783; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=h0Nn7ykEFiIg5X13Nkv5CbkqLn8sjkHkKUxeNYr9uEc=; b=oq3zecQVwirUNvd84ODzGbXgBnLHiX5oP8gfyoaewtps7WkFFIL5qTGzhz9esSjAjZ H8SvWIVM8qR52spWvyIPfJshH/j1GDEkmkVBDZ+JZkk25p0O/y5j/5NwfOX5yjPQDjNd NVRoTT8qp8kNPtHOOfttvpzfSZ2FemmBuVfUv0RO7/QXfcnn0iyX/Bgkj76kAQ5RpB1W j+afwrjdRWRGnMJLiyKcEWwUXjCWVtoVz+uEJggq6I0Rp2O+cXMqTiZUqEMtc5eWl4J1 Vov0j8zFFI+4jun7KtgzAlhdcxPH8VPeEijexQUmBvQShnLRP5JOCUVr5u1scZmYjxPJ G0Iw== X-Gm-Message-State: AOJu0Yys2D7aBvCRivUT8+r2ycjDWEg0Q7/su2EfUW1a+WOQ9LR4buW1 9HWmbmnNjH8JMANkl/G9hS48aeXvfu9WRTfZvus= X-Google-Smtp-Source: AGHT+IFbx50AIWOOnW8/LwPQJt4rGLnh5yvlj08FzohIwxEQTO8unsGTRSjc7pGNOIneJM4BvRRCCA== X-Received: by 2002:a05:6808:60e:b0:3b2:defb:e562 with SMTP id y14-20020a056808060e00b003b2defbe562mr6346665oih.45.1697940983120; Sat, 21 Oct 2023 19:16:23 -0700 (PDT) Received: from localhost ([124.64.17.222]) by smtp.gmail.com with ESMTPSA id z4-20020aa79904000000b006b6f3bc8123sm3846881pff.50.2023.10.21.19.16.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Oct 2023 19:16:22 -0700 (PDT) From: Hawkins Jiawei To: jasowang@redhat.com, mst@redhat.com, eperezma@redhat.com Cc: qemu-devel@nongnu.org, yin31149@gmail.com, 18801353760@163.com Subject: [PATCH v4 0/3] Vhost-vdpa Shadow Virtqueue RSS Support Date: Sun, 22 Oct 2023 10:16:14 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::235; envelope-from=yin31149@gmail.com; helo=mail-oi1-x235.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This series enables shadowed CVQ to intercept RSS command through shadowed CVQ, update the virtio NIC device model so qemu send it in a migration, and the restore of that RSS state in the destination. Note that this patch should be based on patch "Vhost-vdpa Shadow Virtqueue Hash calculation Support" at [1]. [1]. https://lore.kernel.org/all/cover.1697902949.git.yin31149@gmail.com/ ChangeLog ========= v4: - add do_rss argument and relative code in vhost_vdpa_net_load_rss() v3: https://lore.kernel.org/all/cover.1693299194.git.yin31149@gmail.com/ - resolve conflict with updated patch "Vhost-vdpa Shadow Virtqueue Hash calculation Support" in patch "vdpa: Restore receive-side scaling state" RFC v2: https://lore.kernel.org/all/cover.1691926415.git.yin31149@gmail.com/ - Correct the feature usage to VIRTIO_NET_F_HASH_REPORT when loading the hash calculation state in patch "vdpa: Restore receive-side scaling state" RFC v1: https://lore.kernel.org/all/cover.1691766252.git.yin31149@gmail.com/ TestStep ======== 1. test the migration using vp-vdpa device - For L0 guest, boot QEMU with two virtio-net-pci net device with `in-qemu` RSS, command line like: -netdev tap,vhost=off... -device virtio-net-pci,disable-legacy=on,disable-modern=off, iommu_platform=on,mq=on,ctrl_vq=on,hash=on,rss=on,guest_announce=off, indirect_desc=off,queue_reset=off,guest_uso4=off,guest_uso6=off, host_uso=off,... - For L1 guest, apply the relative patch series and compile the source code, start QEMU with two vdpa device with svq mode on, enable the `ctrl_vq`, `mq`, `rss` features on, command line like: -netdev type=vhost-vdpa,x-svq=true,... -device virtio-net-pci,mq=on,guest_announce=off,ctrl_vq=on, rss=on,... - For L2 source guest, run the following bash command: ```bash #!/bin/sh ethtool -K eth0 rxhash on ``` - Execute the live migration in L2 source monitor - Result * with this series, L2 QEMU can execute without triggering any error or warning. L0 QEMU echo "Can't load eBPF RSS - fallback to software RSS". Hawkins Jiawei (3): vdpa: Add SetSteeringEBPF method for NetClientState vdpa: Restore receive-side scaling state vdpa: Allow VIRTIO_NET_F_RSS in SVQ net/vhost-vdpa.c | 72 ++++++++++++++++++++++++++++++++++-------------- 1 file changed, 51 insertions(+), 21 deletions(-)