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{ "id": 59921, "url": "http://patches.dpdk.org/api/covers/59921/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20190927105624.16313-1-jin.yu@intel.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": "<20190927105624.16313-1-jin.yu@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20190927105624.16313-1-jin.yu@intel.com", "date": "2019-09-27T10:56:14", "name": "[v8,00/10] vhost: support inflight share memory protocol feature", "submitter": { "id": 1265, "url": "http://patches.dpdk.org/api/people/1265/?format=api", "name": "Jin Yu", "email": "jin.yu@intel.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20190927105624.16313-1-jin.yu@intel.com/mbox/", "series": [ { "id": 6556, "url": "http://patches.dpdk.org/api/series/6556/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=6556", "date": "2019-09-27T10:56:14", "name": "vhost: support inflight share memory protocol feature", "version": 8, "mbox": "http://patches.dpdk.org/series/6556/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/59921/comments/", "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 86AC22862;\n\tFri, 27 Sep 2019 05:12:01 +0200 (CEST)", "from mga11.intel.com (mga11.intel.com [192.55.52.93])\n\tby dpdk.org (Postfix) with ESMTP id B73AF1E34\n\tfor <dev@dpdk.org>; Fri, 27 Sep 2019 05:11:59 +0200 (CEST)", "from fmsmga007.fm.intel.com ([10.253.24.52])\n\tby fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t26 Sep 2019 20:11:58 -0700", "from storage36.sh.intel.com ([10.67.110.177])\n\tby fmsmga007.fm.intel.com with ESMTP; 26 Sep 2019 20:11:56 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.64,553,1559545200\"; d=\"scan'208\";a=\"190190159\"", "From": "Jin Yu <jin.yu@intel.com>", "To": "dev@dpdk.org", "Cc": "changpeng.liu@intel.com, maxime.coquelin@redhat.com, tiwei.bie@intel.com,\n\tzhihong.wang@intel.com, Jin Yu <jin.yu@intel.com>", "Date": "Fri, 27 Sep 2019 18:56:14 +0800", "Message-Id": "<20190927105624.16313-1-jin.yu@intel.com>", "X-Mailer": "git-send-email 2.17.2", "In-Reply-To": "<20190920120102.29828>", "References": "<20190920120102.29828>", "Subject": "[dpdk-dev] [PATCH v8 00/10] vhost: support inflight share memory\n\tprotocol feature", "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": "This patches introduces two new messages VHOST_USER_GET_INFLIGHT_FD\nand VHOST_USER_SET_INFLIGHT_FD to support transferring a shared\nbuffer between qemu and backend.\nNow It can both support split and packed ring. The example code show\nhow these API work. The test has passed.\n\nHow to test the example:\n1, Qemu need two patches.\nhttps://patchwork.kernel.org/patch/10766813/\nhttps://patchwork.kernel.org/patch/10861411/(QEMU merged)\nit also needs some manual modifications:\nwe should confirm that before we send get inflight we have already\nsent the set features but it seems Qemu didn't do like this. So we\nmanually revise this, we can add below code in vhost_dev_get_inflight\n int r;\n\n r = vhost_dev_set_features(dev, dev->log_enabled);\n if (r < 0) {\n return -errno;\n }\nbefore get_inflight_fd.\n2, Guest OS version >= 5.0\n3, run the example\n4, run the qemu with vhost-user-blk-pci.\n eg:\n -chardev socket,id=spdk_vhost_blk0,reconnect=1,path=xxxx\\\n -device vhost-user-blk-pci,ring_packed=on,chardev=spdk_vhost_blk0,num-queues=1\\\n5, run fio in the guest\n6, kill the example and run again.\n7, the fio in the guest should continue run without errors.\n\nJin Yu (10):\n vhost: add the inflight description\n vhost: add packed ring\n vhost: add the inflight structure\n vhost: add two new messages to support a shared buffer\n vhost: checkout the resubmit inflight information\n vhost: add the APIs to operate inflight ring\n vhost: add APIs for user getting inflight ring\n vhost: add vring functions packed ring support\n vhost: add an API for judging vq format\n vhost: add vhost-user-blk example which support inflight\n\n examples/vhost_blk/Makefile | 68 ++\n examples/vhost_blk/blk.c | 125 +++\n examples/vhost_blk/blk_spec.h | 95 +++\n examples/vhost_blk/meson.build | 21 +\n examples/vhost_blk/vhost_blk.c | 1086 ++++++++++++++++++++++++\n examples/vhost_blk/vhost_blk.h | 127 +++\n examples/vhost_blk/vhost_blk_compat.c | 195 +++++\n lib/librte_vhost/rte_vhost.h | 250 +++++-\n lib/librte_vhost/rte_vhost_version.map | 9 +\n lib/librte_vhost/vhost.c | 416 ++++++++-\n lib/librte_vhost/vhost.h | 16 +\n lib/librte_vhost/vhost_user.c | 468 +++++++++-\n lib/librte_vhost/vhost_user.h | 12 +-\n 13 files changed, 2875 insertions(+), 13 deletions(-)\n create mode 100644 examples/vhost_blk/Makefile\n create mode 100644 examples/vhost_blk/blk.c\n create mode 100644 examples/vhost_blk/blk_spec.h\n create mode 100644 examples/vhost_blk/meson.build\n create mode 100644 examples/vhost_blk/vhost_blk.c\n create mode 100644 examples/vhost_blk/vhost_blk.h\n create mode 100644 examples/vhost_blk/vhost_blk_compat.c" }