From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tiwei Bie Subject: [PATCH 4/4] doc: improve vhost zero copy guide Date: Fri, 22 Feb 2019 10:42:09 +0800 Message-ID: <20190222024209.30879-5-tiwei.bie@intel.com> References: <20190222024209.30879-1-tiwei.bie@intel.com> To: maxime.coquelin@redhat.com, zhihong.wang@intel.com, dev@dpdk.org Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 6AEDE2BA7 for ; Fri, 22 Feb 2019 03:45:02 +0100 (CET) In-Reply-To: <20190222024209.30879-1-tiwei.bie@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Highlight that vhost zero copy mbufs should be consumed as soon as possible. Signed-off-by: Tiwei Bie --- doc/guides/prog_guide/vhost_lib.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst index c77df338f..a86c07a62 100644 --- a/doc/guides/prog_guide/vhost_lib.rst +++ b/doc/guides/prog_guide/vhost_lib.rst @@ -92,6 +92,9 @@ The following is an overview of some key Vhost API functions: to use vfio-pci driver, please insert vfio-pci kernel module in noiommu mode. + * The consumer of zero copy mbufs should consume these mbufs as soon as + possible, otherwise it may block the operations in vhost. + - ``RTE_VHOST_USER_IOMMU_SUPPORT`` IOMMU support will be enabled when this flag is set. It is disabled by -- 2.17.1