From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Wang Subject: [PATCH 9/9] doc: update ifc NIC document Date: Wed, 28 Nov 2018 17:46:07 +0800 Message-ID: <20181128094607.106173-10-xiao.w.wang@intel.com> References: <20181128094607.106173-1-xiao.w.wang@intel.com> Cc: dev@dpdk.org, zhihong.wang@intel.com, xiaolong.ye@intel.com, Xiao Wang To: tiwei.bie@intel.com, maxime.coquelin@redhat.com Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 835781B495 for ; Wed, 28 Nov 2018 10:56:06 +0100 (CET) In-Reply-To: <20181128094607.106173-1-xiao.w.wang@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" Signed-off-by: Xiao Wang --- doc/guides/nics/ifc.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/guides/nics/ifc.rst b/doc/guides/nics/ifc.rst index 48f9adf1d..a16f2982f 100644 --- a/doc/guides/nics/ifc.rst +++ b/doc/guides/nics/ifc.rst @@ -39,6 +39,12 @@ the driver probe a new container is created for this device, with this container vDPA driver can program DMA remapping table with the VM's memory region information. +The device argument "swlm=1" will configure the driver into SW assisted live +migration mode. In this mode, the driver will set up a SW relay thread when LM +happens, this thread will help device to log dirty pages. Thus this mode does +not require HW to implement a dirty page logging function block, but will +consume some percentage of CPU resource depending on the network throughput. + Key IFCVF vDPA driver ops ~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -70,6 +76,7 @@ Features Features of the IFCVF driver are: - Compatibility with virtio 0.95 and 1.0. +- SW assisted vDPA for live migration. Prerequisites -- 2.15.1