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GET /api/patches/45835/?format=api
{ "id": 45835, "url": "http://patches.dpdk.org/api/patches/45835/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20181002093651.24795-18-maxime.coquelin@redhat.com/", "project": { "id": 1, "url": "http://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": "<20181002093651.24795-18-maxime.coquelin@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181002093651.24795-18-maxime.coquelin@redhat.com", "date": "2018-10-02T09:36:51", "name": "[v2,17/17] net/vhost: add parameter to enable postcopy support", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "31f63db5d17a5661ab08b1bde2991e1601910810", "submitter": { "id": 512, "url": "http://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@redhat.com" }, "delegate": { "id": 2642, "url": "http://patches.dpdk.org/api/users/2642/?format=api", "username": "mcoquelin", "first_name": "Maxime", "last_name": "Coquelin", "email": "maxime.coquelin@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20181002093651.24795-18-maxime.coquelin@redhat.com/mbox/", "series": [ { "id": 1630, "url": "http://patches.dpdk.org/api/series/1630/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=1630", "date": "2018-10-02T09:36:34", "name": "vhost: add postcopy live-migration support", "version": 2, "mbox": "http://patches.dpdk.org/series/1630/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/45835/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/45835/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 4451B5F16;\n\tTue, 2 Oct 2018 11:38:54 +0200 (CEST)", "from mx1.redhat.com (mx1.redhat.com [209.132.183.28])\n\tby dpdk.org (Postfix) with ESMTP id 34E945B3A;\n\tTue, 2 Oct 2018 11:38:52 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 7FDDE30BCBF9;\n\tTue, 2 Oct 2018 09:38:51 +0000 (UTC)", "from localhost.localdomain (ovpn-112-50.ams2.redhat.com\n\t[10.36.112.50])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 2A8D579431;\n\tTue, 2 Oct 2018 09:38:44 +0000 (UTC)" ], "From": "Maxime Coquelin <maxime.coquelin@redhat.com>", "To": "dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com,\n\tjfreimann@redhat.com, nicknickolaev@gmail.com, i.maximets@samsung.com,\n\tbruce.richardson@intel.com, alejandro.lucero@netronome.com", "Cc": "dgilbert@redhat.com, stable@dpdk.org,\n\tMaxime Coquelin <maxime.coquelin@redhat.com>", "Date": "Tue, 2 Oct 2018 11:36:51 +0200", "Message-Id": "<20181002093651.24795-18-maxime.coquelin@redhat.com>", "In-Reply-To": "<20181002093651.24795-1-maxime.coquelin@redhat.com>", "References": "<20181002093651.24795-1-maxime.coquelin@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.16", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.44]); Tue, 02 Oct 2018 09:38:51 +0000 (UTC)", "Subject": "[dpdk-dev] [PATCH v2 17/17] net/vhost: add parameter to enable\n\tpostcopy support", "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": "Introduce a new postcopy-support parameter to Vhost PMD that\npasses the RTE_VHOST_USER_POSTCOPY_SUPPORT flag at vhost\ndevice register time.\n\nFlag should only be set if application does not prefault guest\nmemory using, for example, mlockall() syscall.\n\nDefault value is 0, meaning that postcopy support is disabled\nunless specified explicitly.\n\nExample to enable postcopy support for a given device:\n\n--vdev 'net_vhost0,iface=/tmp/vhost-user1,postcopy-support=1'\n\nSigned-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n---\n doc/guides/nics/vhost.rst | 5 +++++\n drivers/net/vhost/rte_eth_vhost.c | 13 +++++++++++++\n 2 files changed, 18 insertions(+)", "diff": "diff --git a/doc/guides/nics/vhost.rst b/doc/guides/nics/vhost.rst\nindex 4f7ae8990..23f2e87aa 100644\n--- a/doc/guides/nics/vhost.rst\n+++ b/doc/guides/nics/vhost.rst\n@@ -71,6 +71,11 @@ The user can specify below arguments in `--vdev` option.\n It is used to enable iommu support in vhost library.\n (Default: 0 (disabled))\n \n+#. ``postcopy-support``:\n+\n+ It is used to enable postcopy live-migration support in vhost library.\n+ (Default: 0 (disabled))\n+\n Vhost PMD event handling\n ------------------------\n \ndiff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c\nindex aa6052221..1330f06ba 100644\n--- a/drivers/net/vhost/rte_eth_vhost.c\n+++ b/drivers/net/vhost/rte_eth_vhost.c\n@@ -30,6 +30,7 @@ enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};\n #define ETH_VHOST_CLIENT_ARG\t\t\"client\"\n #define ETH_VHOST_DEQUEUE_ZERO_COPY\t\"dequeue-zero-copy\"\n #define ETH_VHOST_IOMMU_SUPPORT\t\t\"iommu-support\"\n+#define ETH_VHOST_POSTCOPY_SUPPORT\t\"postcopy-support\"\n #define VHOST_MAX_PKT_BURST 32\n \n static const char *valid_arguments[] = {\n@@ -38,6 +39,7 @@ static const char *valid_arguments[] = {\n \tETH_VHOST_CLIENT_ARG,\n \tETH_VHOST_DEQUEUE_ZERO_COPY,\n \tETH_VHOST_IOMMU_SUPPORT,\n+\tETH_VHOST_POSTCOPY_SUPPORT,\n \tNULL\n };\n \n@@ -1339,6 +1341,7 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)\n \tint client_mode = 0;\n \tint dequeue_zero_copy = 0;\n \tint iommu_support = 0;\n+\tint postcopy_support = 0;\n \tstruct rte_eth_dev *eth_dev;\n \tconst char *name = rte_vdev_device_name(dev);\n \n@@ -1411,6 +1414,16 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)\n \t\t\tflags |= RTE_VHOST_USER_IOMMU_SUPPORT;\n \t}\n \n+\tif (rte_kvargs_count(kvlist, ETH_VHOST_POSTCOPY_SUPPORT) == 1) {\n+\t\tret = rte_kvargs_process(kvlist, ETH_VHOST_POSTCOPY_SUPPORT,\n+\t\t\t\t\t &open_int, &postcopy_support);\n+\t\tif (ret < 0)\n+\t\t\tgoto out_free;\n+\n+\t\tif (postcopy_support)\n+\t\t\tflags |= RTE_VHOST_USER_POSTCOPY_SUPPORT;\n+\t}\n+\n \tif (dev->device.numa_node == SOCKET_ID_ANY)\n \t\tdev->device.numa_node = rte_socket_id();\n \n", "prefixes": [ "v2", "17/17" ] }