From patchwork Wed Jan 11 20:03:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Billy McFall X-Patchwork-Id: 19155 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 28DFFF923; Wed, 11 Jan 2017 21:03:53 +0100 (CET) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id D30F5D592 for ; Wed, 11 Jan 2017 21:03:33 +0100 (CET) Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0037E44811; Wed, 11 Jan 2017 20:03:33 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-119-153.rdu2.redhat.com [10.10.119.153]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v0BK3P4M019918; Wed, 11 Jan 2017 15:03:33 -0500 From: Billy McFall To: thomas.monjalon@6wind.com, wenzhuo.lu@intel.com Cc: dev@dpdk.org, Billy McFall Date: Wed, 11 Jan 2017 15:03:23 -0500 Message-Id: <20170111200323.12938-4-bmcfall@redhat.com> In-Reply-To: <20170111200323.12938-1-bmcfall@redhat.com> References: <20170111200323.12938-1-bmcfall@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 11 Jan 2017 20:03:34 +0000 (UTC) Subject: [dpdk-dev] [PATCH v2 3/3] net/vhost: vHost support to free consumed buffers X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" Add support to the vHostdriver for the new API to force free consumed buffers on Tx ring. vHost does not cache the mbufs so there is no work to do. Signed-off-by: Billy McFall --- drivers/net/vhost/rte_eth_vhost.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c index 766d4ef..6493d56 100644 --- a/drivers/net/vhost/rte_eth_vhost.c +++ b/drivers/net/vhost/rte_eth_vhost.c @@ -939,6 +939,16 @@ eth_queue_release(void *q) } static int +eth_tx_done_cleanup(void *txq __rte_unused, uint32_t free_cnt __rte_unused) +{ + /* + * vHost does not hang onto mbuf. eth_vhost_tx() copies packet data + * and releases mbuf, so nothing to cleanup. + */ + return 0; +} + +static int eth_link_update(struct rte_eth_dev *dev __rte_unused, int wait_to_complete __rte_unused) { @@ -979,6 +989,7 @@ static const struct eth_dev_ops ops = { .tx_queue_setup = eth_tx_queue_setup, .rx_queue_release = eth_queue_release, .tx_queue_release = eth_queue_release, + .tx_done_cleanup = eth_tx_done_cleanup, .link_update = eth_link_update, .stats_get = eth_stats_get, .stats_reset = eth_stats_reset,