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GET /api/patches/48942/?format=api
https://patches.dpdk.org/api/patches/48942/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20181214211612.167681-11-xiao.w.wang@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20181214211612.167681-11-xiao.w.wang@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181214211612.167681-11-xiao.w.wang@intel.com", "date": "2018-12-14T21:16:12", "name": "[v4,10/10] doc: update ifc NIC document", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "45a990d6427ab314bdcb39314596a18dcc32bee6", "submitter": { "id": 281, "url": "https://patches.dpdk.org/api/people/281/?format=api", "name": "Xiao Wang", "email": "xiao.w.wang@intel.com" }, "delegate": { "id": 2642, "url": "https://patches.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20181214211612.167681-11-xiao.w.wang@intel.com/mbox/", "series": [ { "id": 2809, "url": "https://patches.dpdk.org/api/series/2809/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=2809", "date": "2018-12-14T21:16:02", "name": "support SW assisted VDPA live migration", "version": 4, "mbox": "https://patches.dpdk.org/series/2809/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/48942/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/48942/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 587011BA30;\n\tFri, 14 Dec 2018 22:26:57 +0100 (CET)", "from mga04.intel.com (mga04.intel.com [192.55.52.120])\n\tby dpdk.org (Postfix) with ESMTP id 9E94D1B9E9\n\tfor <dev@dpdk.org>; Fri, 14 Dec 2018 22:26:50 +0100 (CET)", "from orsmga001.jf.intel.com ([10.7.209.18])\n\tby fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t14 Dec 2018 13:26:49 -0800", "from dpdk-xiao-1.sh.intel.com ([10.67.111.145])\n\tby orsmga001.jf.intel.com with ESMTP; 14 Dec 2018 13:26:48 -0800" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.56,354,1539673200\"; d=\"scan'208\";a=\"118922700\"", "From": "Xiao Wang <xiao.w.wang@intel.com>", "To": "tiwei.bie@intel.com,\n\tmaxime.coquelin@redhat.com", "Cc": "alejandro.lucero@netronome.com, dev@dpdk.org, zhihong.wang@intel.com,\n\txiaolong.ye@intel.com, Xiao Wang <xiao.w.wang@intel.com>", "Date": "Sat, 15 Dec 2018 05:16:12 +0800", "Message-Id": "<20181214211612.167681-11-xiao.w.wang@intel.com>", "X-Mailer": "git-send-email 2.15.1", "In-Reply-To": "<20181214211612.167681-1-xiao.w.wang@intel.com>", "References": "<20181213100910.13087-2-xiao.w.wang@intel.com>\n\t<20181214211612.167681-1-xiao.w.wang@intel.com>", "Subject": "[dpdk-dev] [PATCH v4 10/10] doc: update ifc NIC document", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Add the SW assisted VDPA live migration feature into NIC doc.\n\nSigned-off-by: Xiao Wang <xiao.w.wang@intel.com>\n---\n doc/guides/nics/ifc.rst | 8 ++++++++\n doc/guides/rel_notes/release_19_02.rst | 6 ++++++\n 2 files changed, 14 insertions(+)", "diff": "diff --git a/doc/guides/nics/ifc.rst b/doc/guides/nics/ifc.rst\nindex 48f9adf1d..eb55d329a 100644\n--- a/doc/guides/nics/ifc.rst\n+++ b/doc/guides/nics/ifc.rst\n@@ -39,6 +39,13 @@ the driver probe a new container is created for this device, with this\n container vDPA driver can program DMA remapping table with the VM's memory\n region information.\n \n+The device argument \"swlm=1\" will configure the driver into SW assisted live\n+migration mode. In this mode, the driver will set up a SW relay thread when LM\n+happens, this thread will help device to log dirty pages. Thus this mode does\n+not require HW to implement a dirty page logging function block, but will\n+consume some percentage of CPU resource depending on the network throughput.\n+If no \"swlm=1\" specified, driver will rely on device's logging capability.\n+\n Key IFCVF vDPA driver ops\n ~~~~~~~~~~~~~~~~~~~~~~~~~\n \n@@ -70,6 +77,7 @@ Features\n Features of the IFCVF driver are:\n \n - Compatibility with virtio 0.95 and 1.0.\n+- SW assisted vDPA live migration.\n \n \n Prerequisites\ndiff --git a/doc/guides/rel_notes/release_19_02.rst b/doc/guides/rel_notes/release_19_02.rst\nindex e86ef9511..ced6af8f0 100644\n--- a/doc/guides/rel_notes/release_19_02.rst\n+++ b/doc/guides/rel_notes/release_19_02.rst\n@@ -60,6 +60,12 @@ New Features\n * Added the handler to get firmware version string.\n * Added support for multicast filtering.\n \n+* **Added support for SW-assisted VDPA live migration.**\n+\n+ This SW-assisted VDPA live migration facility helps VDPA devices without\n+ logging capability to perform live migration, a mediate SW relay can help\n+ devices to track dirty pages caused by DMA. IFC driver has enabled this\n+ SW-assisted live migration mode.\n \n Removed Items\n -------------\n", "prefixes": [ "v4", "10/10" ] }{ "id": 48942, "url": "