From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 5C2FA235 for ; Tue, 31 Jul 2018 10:16:04 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Jul 2018 01:16:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,426,1526367600"; d="scan'208";a="62101380" Received: from dpdk-test32.sh.intel.com ([10.67.119.193]) by orsmga006.jf.intel.com with ESMTP; 31 Jul 2018 01:16:01 -0700 From: Marvin Liu To: john.mcnamara@intel.com, tiwei.bie@intel.com, dev@dpdk.org Cc: Marvin Liu Date: Wed, 1 Aug 2018 00:00:39 +0800 Message-Id: <20180731160039.10613-1-yong.liu@intel.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180726142738.58543-1-yong.liu@intel.com> References: <20180726142738.58543-1-yong.liu@intel.com> Subject: [dpdk-dev] [PATCH v3] doc: add note for builtin-net-driver option 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: Tue, 31 Jul 2018 08:16:05 -0000 Very simple version of vhost-user driver in vhost sample will be used if builtin-net-driver option is enabled. This driver is based on generic vhost lib APIs. Unfortunately, the implementation is incompatible with QEMU as protocol feature is not supported. Signed-off-by: Marvin Liu diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst index 9112e7897..fd42cb3f7 100644 --- a/doc/guides/sample_app_ug/vhost.rst +++ b/doc/guides/sample_app_ug/vhost.rst @@ -158,6 +158,10 @@ 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** +A very simple vhost-user net driver which demonstrates how to use the generic +vhost APIs will be used when this option is given. It is disabled by default. + Common Issues ------------- @@ -192,3 +196,8 @@ 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 pmd can be the replacement of QEMU. -- 2.17.0