From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 5FF1B4CC5 for ; Mon, 23 Jan 2017 22:13:48 +0100 (CET) Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (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 7290C76EF; Mon, 23 Jan 2017 21:13:48 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-116-202.rdu2.redhat.com [10.10.116.202]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v0NLDg0N022030; Mon, 23 Jan 2017 16:13:47 -0500 From: Billy McFall To: thomas.monjalon@6wind.com, wenzhuo.lu@intel.com Cc: dev@dpdk.org, Billy McFall Date: Mon, 23 Jan 2017 16:13:40 -0500 Message-Id: <20170123211340.22570-4-bmcfall@redhat.com> In-Reply-To: <20170123211340.22570-1-bmcfall@redhat.com> References: <20170120160109.1088-1-bmcfall@redhat.com> <20170123211340.22570-1-bmcfall@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 23 Jan 2017 21:13:48 +0000 (UTC) Subject: [dpdk-dev] [PATCH v4 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: , X-List-Received-Date: Mon, 23 Jan 2017 21:13:48 -0000 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 --- doc/guides/nics/features/vhost.ini | 1 + drivers/net/vhost/rte_eth_vhost.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/doc/guides/nics/features/vhost.ini b/doc/guides/nics/features/vhost.ini index 23166fb..83fea03 100644 --- a/doc/guides/nics/features/vhost.ini +++ b/doc/guides/nics/features/vhost.ini @@ -9,5 +9,6 @@ Link status event = Y Queue status event = Y Basic stats = Y Extended stats = Y +Free TX ring buffers = Y x86-32 = Y x86-64 = Y diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c index 848a3da..6674536 100644 --- a/drivers/net/vhost/rte_eth_vhost.c +++ b/drivers/net/vhost/rte_eth_vhost.c @@ -934,6 +934,16 @@ 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) { @@ -974,6 +984,7 @@ 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, -- 2.9.3