From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marvin Liu Subject: [PATCH v2] doc: add note for builtin-net-driver option Date: Thu, 26 Jul 2018 22:27:38 +0800 Message-ID: <20180726142738.58543-1-yong.liu@intel.com> References: <20180725171224.21113-1-yong.liu@intel.com> Cc: Marvin Liu To: marko.kovacevic@intel.com, tiwei.bie@intel.com, dev@dpdk.org Return-path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 89EC825D9 for ; Thu, 26 Jul 2018 08:42:46 +0200 (CEST) In-Reply-To: <20180725171224.21113-1-yong.liu@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" Option builtin-net-driver is used to demonstrate how to implement vhost-user driver based on vhost lib APIs. Unfortunately, very simple vhost driver in vhost sample is incompatible with QEMU as protocol feature not supported. Signed-off-by: Marvin Liu --- v2: * Updated descriptions. --- diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst index 9112e7897..396d83211 100644 --- a/doc/guides/sample_app_ug/vhost.rst +++ b/doc/guides/sample_app_ug/vhost.rst @@ -158,6 +158,11 @@ when disabling VLAN strip. Such feature, which heavily depends on hardware, should be removed from this example to reduce confusion. Now, VLAN strip is enabled and cannot be disabled. +**--builtin-net-driver** +Very simple enqueue and dequeue function will be used when this option is +given. It can demonstrate how to construct vhost-user driver with vhost lib +APIs. It is disabled by default. + Common Issues ------------- @@ -192,3 +197,8 @@ Common Issues according to the NIC's property. :: make EXTRA_CFLAGS="-DMAX_QUEUES=320" + +* Option "builtin-net-driver" is incompatible with QEMU. + + QEMU vhost net device start will fail if protocol feature is not + negotiated. DPDK virtio-user can be the replacement of QEMU. -- 2.17.0