From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id A1BEEA2EFC for ; Fri, 20 Sep 2019 06:18:12 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 749B91F23A; Fri, 20 Sep 2019 06:18:11 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id A71B71F231 for ; Fri, 20 Sep 2019 06:18:10 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Sep 2019 21:18:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,527,1559545200"; d="scan'208";a="194586811" Received: from storage36.sh.intel.com ([10.67.110.166]) by FMSMGA003.fm.intel.com with ESMTP; 19 Sep 2019 21:18:07 -0700 From: Jin Yu To: dev@dpdk.org Cc: changpeng.liu@intel.com, maxime.coquelin@redhat.com, tiwei.bie@intel.com, zhihong.wang@intel.com, Jin Yu Date: Fri, 20 Sep 2019 20:00:52 +0800 Message-Id: <20190920120102.29828-1-jin.yu@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190917145234.16951> References: <20190917145234.16951> Subject: [dpdk-dev] [PATCH v7 00/10] vhost: support inflight share memory protocol feature 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patches introduces two new messages VHOST_USER_GET_INFLIGHT_FD and VHOST_USER_SET_INFLIGHT_FD to support transferring a shared buffer between qemu and backend. Now It can both support split and packed ring. The example code show how these API work. The test has passed. How to test the example: 1, Qemu need two patches. https://patchwork.kernel.org/patch/10766813/ https://patchwork.kernel.org/patch/10861411/(QEMU merged) it also needs some manual modifications: we should confirm that before we send get inflight we have already sent the set features but it seems Qemu didn't do like this. So we manually revise this, we can add below code in vhost_dev_get_inflight int r; r = vhost_dev_set_features(dev, dev->log_enabled); if (r < 0) { return -errno; } before get_inflight_fd. 2, Guest OS version >= 5.0 3, run the example 4, run the qemu with vhost-user-blk-pci. eg: -chardev socket,id=spdk_vhost_blk0,reconnect=1,path=xxxx\ -device vhost-user-blk-pci,ring_packed=on,chardev=spdk_vhost_blk0,num-queues=1\ 5, run fio in the guest 6, kill the example and run again. 7, the fio in the guest should continue run without errors. Jin Yu (10): vhost: add the inflight description vhost: add packed ring vhost: add the inflight structure vhost: add two new messages to support a shared buffer vhost: checkout the resubmit inflight information vhost: add the APIs to operate inflight ring vhost: add APIs for user getting inflight ring vhost: add vring functions packed ring support vhost: add an API for judging vq format vhost: add vhost-user-blk example which support inflight examples/vhost_blk/Makefile | 67 ++ examples/vhost_blk/blk.c | 125 +++ examples/vhost_blk/blk_spec.h | 95 ++ examples/vhost_blk/meson.build | 20 + examples/vhost_blk/vhost_blk.c | 1313 ++++++++++++++++++++++++ examples/vhost_blk/vhost_blk.h | 116 +++ examples/vhost_blk/vhost_blk_compat.c | 195 ++++ lib/librte_vhost/rte_vhost.h | 250 ++++- lib/librte_vhost/rte_vhost_version.map | 9 + lib/librte_vhost/vhost.c | 416 +++++++- lib/librte_vhost/vhost.h | 16 + lib/librte_vhost/vhost_user.c | 470 ++++++++- lib/librte_vhost/vhost_user.h | 12 +- 13 files changed, 3091 insertions(+), 13 deletions(-) create mode 100644 examples/vhost_blk/Makefile create mode 100644 examples/vhost_blk/blk.c create mode 100644 examples/vhost_blk/blk_spec.h create mode 100644 examples/vhost_blk/meson.build create mode 100644 examples/vhost_blk/vhost_blk.c create mode 100644 examples/vhost_blk/vhost_blk.h create mode 100644 examples/vhost_blk/vhost_blk_compat.c -- 2.17.2