From patchwork Mon Jul 8 11:25:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xuan Zhuo X-Patchwork-Id: 13726427 X-Patchwork-Delegate: kuba@kernel.org Received: from out30-113.freemail.mail.aliyun.com (out30-113.freemail.mail.aliyun.com [115.124.30.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 889F07A715; Mon, 8 Jul 2024 11:25:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.113 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720437946; cv=none; b=T3j3X35JBSSUC54RePBdSm7Y+NkK0FG/uka6Dd0lvESyiaQQD/CZe+aU3NYsf/FbZVvf/sks43+n7WvjkPzUKRJbBSGJ5CHGf5k6TtayNcs703PbfY85Rm0bjGSQm2UAKtKzrwmPZa3nc38xOBS9ZdgAjLvQiOClUoI9o3OpNqQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720437946; c=relaxed/simple; bh=S6oVuJH4Ey1aGRyuX5UtuKn3x/lfZdCtlD0vCpj5PUg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=e45M6lSaM3uqtxRyxxPuRIlw7rxY9fve5ixJy26se+fc8KEZDh4ceaO+Jjd4kfHhwvfkgxYqot1TaeaG5CjGsb2V7yu7FOtCMqRhL8dg5inRDSCQTcAd2WL8JMrQJ0OffOKr4D8O6atg+ZR03GLNQJXzKQ1r8RSx/FAsRxjIz1c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=D4/3CuE8; arc=none smtp.client-ip=115.124.30.113 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="D4/3CuE8" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1720437941; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=atkXl8sdxE5F980RyAJSy3BaZJBzT1htGKQ6PgTVJ0c=; b=D4/3CuE8lc2d6Nd1kl9yvrkMIBh2VfpSo8ATOP0lP5C0F8DbQhaiWwvzJjY/sJfoLfh63Y3zlstAege0O9vgEC3oxuTgdEzl2uH26DUA1MY6BcP0G/CS2XkSSZFYvQvl71CJZok8OAwbK3ANfeOCS5xuWRxyrEbIrB5AxvVMCmY= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R171e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037067112;MF=xuanzhuo@linux.alibaba.com;NM=1;PH=DS;RN=15;SR=0;TI=SMTPD_---0WA4mZe5_1720437940; Received: from localhost(mailfrom:xuanzhuo@linux.alibaba.com fp:SMTPD_---0WA4mZe5_1720437940) by smtp.aliyun-inc.com; Mon, 08 Jul 2024 19:25:40 +0800 From: Xuan Zhuo To: netdev@vger.kernel.org Cc: "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , virtualization@lists.linux.dev, bpf@vger.kernel.org Subject: [PATCH net-next v8 02/10] virtio_net: separate virtnet_rx_resize() Date: Mon, 8 Jul 2024 19:25:29 +0800 Message-Id: <20240708112537.96291-3-xuanzhuo@linux.alibaba.com> X-Mailer: git-send-email 2.32.0.3.g01195cf9f In-Reply-To: <20240708112537.96291-1-xuanzhuo@linux.alibaba.com> References: <20240708112537.96291-1-xuanzhuo@linux.alibaba.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Git-Hash: 74fbc055cff2 X-Patchwork-Delegate: kuba@kernel.org This patch separates two sub-functions from virtnet_rx_resize(): * virtnet_rx_pause * virtnet_rx_resume Then the subsequent reset rx for xsk can share these two functions. Signed-off-by: Xuan Zhuo Acked-by: Jason Wang --- drivers/net/virtio_net.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index d99898e44456..df5b23374c53 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2665,28 +2665,41 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } -static int virtnet_rx_resize(struct virtnet_info *vi, - struct receive_queue *rq, u32 ring_num) +static void virtnet_rx_pause(struct virtnet_info *vi, struct receive_queue *rq) { bool running = netif_running(vi->dev); - int err, qindex; - - qindex = rq - vi->rq; if (running) { napi_disable(&rq->napi); virtnet_cancel_dim(vi, &rq->dim); } +} - err = virtqueue_resize(rq->vq, ring_num, virtnet_rq_unmap_free_buf); - if (err) - netdev_err(vi->dev, "resize rx fail: rx queue index: %d err: %d\n", qindex, err); +static void virtnet_rx_resume(struct virtnet_info *vi, struct receive_queue *rq) +{ + bool running = netif_running(vi->dev); if (!try_fill_recv(vi, rq, GFP_KERNEL)) schedule_delayed_work(&vi->refill, 0); if (running) virtnet_napi_enable(rq->vq, &rq->napi); +} + +static int virtnet_rx_resize(struct virtnet_info *vi, + struct receive_queue *rq, u32 ring_num) +{ + int err, qindex; + + qindex = rq - vi->rq; + + virtnet_rx_pause(vi, rq); + + err = virtqueue_resize(rq->vq, ring_num, virtnet_rq_unmap_free_buf); + if (err) + netdev_err(vi->dev, "resize rx fail: rx queue index: %d err: %d\n", qindex, err); + + virtnet_rx_resume(vi, rq); return err; }