From patchwork Wed Jul 19 07:53:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hawkins Jiawei X-Patchwork-Id: 13318509 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 68642C001DC for ; Wed, 19 Jul 2023 07:55:17 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qM214-0005L3-AC; Wed, 19 Jul 2023 03:54:38 -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 1qM20v-0005H2-K7 for qemu-devel@nongnu.org; Wed, 19 Jul 2023 03:54:26 -0400 Received: from mail-pf1-x42c.google.com ([2607:f8b0:4864:20::42c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qM20t-0003Ox-W7 for qemu-devel@nongnu.org; Wed, 19 Jul 2023 03:54:25 -0400 Received: by mail-pf1-x42c.google.com with SMTP id d2e1a72fcca58-6686c74183cso6598356b3a.1 for ; Wed, 19 Jul 2023 00:54:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1689753262; x=1692345262; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TzUWFm6jl8VZ4HfXUTybQ0jJBYc+cOQnZhY89ahOgk4=; b=WH3c5vJUUVSkeYk31VYhuZEQq7qrcKVzApwL+HeSAAvcc+WvBAzf+9pTQSeL2pFMgR zdXEXn716wCUfta+QPlG9HIuZ0ymib2DUZ4K3AZYPbz6ukv+h6oC4u4ylVCWd2I+nQME CfIyNRkrxzhMxKDkPaI+NBDQMrbOcbEoxQOnnOoBk4e/v8QqkQKKlXNQeFv4geEemzpU QUZpCfg5V1E3FPCXTBqVPmveIzxD7g3IFYw7Qw3klRHZJvQNcNYwkX+p6AAvCfvLuAFJ G5LGX5pZ+EeYIoEw7vYNoeUuUmdXmp1Cukx6GHKEnGgvxxmrAVbi0/UDoQbUbBS2M5Lk WS+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689753262; x=1692345262; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TzUWFm6jl8VZ4HfXUTybQ0jJBYc+cOQnZhY89ahOgk4=; b=B6qCB8LpcWUWq7eChbPaXDinfYfLfJ7+qKx1NupvZwSzhE3mUQx0CtBhuzb+CKCAsH 74ur27I0NJOjoaFrJbvWImHCIaUBobXkBl2rMs2JSlrPQuARrTXhiKRhqLbo6Opi8HwB e0+un4lkghaIi/pbXgCGzhbc3j5vNYrAxoE69DJ5HVumu9lcuec6zWowwZQK2+ckLvJV Yov6OFV9lgO88APHVDYafdtqg2cQgWfzsbBh+1igGoS1twz7iVmpzex9r15pvUYiW1gM ye/AjOUP/r0CMwFKNuWSHneSKW5wuAKwJn58WtX+kV9JRhL/D/sJcsq//cRIDkU0Dog/ 9bYw== X-Gm-Message-State: ABy/qLaLvvaz7lsCTpST6XDrs9U3TjFT1bjtiSRc5CJyi12E66mqfpkn y2ecT6tebeybGle0xBmGMVeYi1728C8iMQ== X-Google-Smtp-Source: APBJJlFMutHhHrJ1s3r/kJ8GjIlisRmVrNrnoCBdRonsGqlOc48DeduDFooUQQL+FG583nLfS9v4Qw== X-Received: by 2002:a05:6a20:2452:b0:137:2204:4ea6 with SMTP id t18-20020a056a20245200b0013722044ea6mr2186260pzc.27.1689753262512; Wed, 19 Jul 2023 00:54:22 -0700 (PDT) Received: from localhost ([183.242.254.166]) by smtp.gmail.com with ESMTPSA id a16-20020a62e210000000b006528d9080f6sm2685943pfi.9.2023.07.19.00.54.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jul 2023 00:54:22 -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 v3 5/8] vdpa: Check device ack in vhost_vdpa_net_load_rx_mode() Date: Wed, 19 Jul 2023 15:53:50 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=yin31149@gmail.com; helo=mail-pf1-x42c.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 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, T_SCC_BODY_TEXT_LINE=-0.01 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 Considering that vhost_vdpa_net_load_rx_mode() is only called within vhost_vdpa_net_load_rx() now, this patch refactors vhost_vdpa_net_load_rx_mode() to include a check for the device's ack, simplifying the code and improving its maintainability. Signed-off-by: Hawkins Jiawei Acked-by: Eugenio Pérez --- net/vhost-vdpa.c | 76 ++++++++++++++++++++---------------------------- 1 file changed, 31 insertions(+), 45 deletions(-) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index ae8f59adaa..fe0ba19724 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -814,14 +814,24 @@ static int vhost_vdpa_net_load_rx_mode(VhostVDPAState *s, .iov_base = &on, .iov_len = sizeof(on), }; - return vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_RX, - cmd, &data, 1); + ssize_t dev_written; + + dev_written = vhost_vdpa_net_load_cmd(s, VIRTIO_NET_CTRL_RX, + cmd, &data, 1); + if (unlikely(dev_written < 0)) { + return dev_written; + } + if (*s->status != VIRTIO_NET_OK) { + return -EIO; + } + + return 0; } static int vhost_vdpa_net_load_rx(VhostVDPAState *s, const VirtIONet *n) { - ssize_t dev_written; + ssize_t r; if (!virtio_vdev_has_feature(&n->parent_obj, VIRTIO_NET_F_CTRL_RX)) { return 0; @@ -846,13 +856,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (!n->mac_table.uni_overflow && !n->promisc) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_PROMISC, 0); - if (unlikely(dev_written < 0)) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_PROMISC, 0); + if (unlikely(r < 0)) { + return r; } } @@ -874,13 +880,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (n->mac_table.multi_overflow || n->allmulti) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_ALLMULTI, 1); - if (unlikely(dev_written < 0)) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_ALLMULTI, 1); + if (unlikely(r < 0)) { + return r; } } @@ -899,13 +901,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (n->alluni) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_ALLUNI, 1); - if (dev_written < 0) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_ALLUNI, 1); + if (r < 0) { + return r; } } @@ -920,13 +918,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (n->nomulti) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_NOMULTI, 1); - if (dev_written < 0) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_NOMULTI, 1); + if (r < 0) { + return r; } } @@ -941,13 +935,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (n->nouni) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_NOUNI, 1); - if (dev_written < 0) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_NOUNI, 1); + if (r < 0) { + return r; } } @@ -962,13 +952,9 @@ static int vhost_vdpa_net_load_rx(VhostVDPAState *s, * configuration only at live migration. */ if (n->nobcast) { - dev_written = vhost_vdpa_net_load_rx_mode(s, - VIRTIO_NET_CTRL_RX_NOBCAST, 1); - if (dev_written < 0) { - return dev_written; - } - if (*s->status != VIRTIO_NET_OK) { - return -EIO; + r = vhost_vdpa_net_load_rx_mode(s, VIRTIO_NET_CTRL_RX_NOBCAST, 1); + if (r < 0) { + return r; } }