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 435E72C49 for ; Thu, 9 Mar 2017 21:51:32 +0100 (CET) Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (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 8B74D3B708; Thu, 9 Mar 2017 20:51:32 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-121-228.rdu2.redhat.com [10.10.121.228] (may be forged)) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v29KpMvo014889; Thu, 9 Mar 2017 15:51:31 -0500 From: Billy McFall To: thomas.monjalon@6wind.com, wenzhuo.lu@intel.com, olivier.matz@6wind.com Cc: dev@dpdk.org, Billy McFall Date: Thu, 9 Mar 2017 15:51:19 -0500 Message-Id: <20170309205119.28170-4-bmcfall@redhat.com> In-Reply-To: <20170309205119.28170-1-bmcfall@redhat.com> References: <20170127183800.27466-1-bmcfall@redhat.com> <20170309205119.28170-1-bmcfall@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 09 Mar 2017 20:51:32 +0000 (UTC) Subject: [dpdk-dev] [PATCH v6 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: Thu, 09 Mar 2017 20:51:32 -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..dffd1f4 100644 --- a/doc/guides/nics/features/vhost.ini +++ b/doc/guides/nics/features/vhost.ini @@ -6,6 +6,7 @@ [Features] Link status = Y Link status event = Y +Free Tx mbuf on demand = Y Queue status event = Y Basic stats = Y Extended stats = Y diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c index e98cffd..abe91c7 100644 --- a/drivers/net/vhost/rte_eth_vhost.c +++ b/drivers/net/vhost/rte_eth_vhost.c @@ -960,6 +960,16 @@ 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) { @@ -1001,6 +1011,7 @@ 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