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 324CFA3160 for ; Wed, 9 Oct 2019 15:05:41 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 168D21E550; Wed, 9 Oct 2019 15:05:40 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 98AED1E54B for ; Wed, 9 Oct 2019 15:05:37 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Oct 2019 06:05:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,276,1566889200"; d="scan'208";a="193675113" Received: from storage36.sh.intel.com ([10.67.110.177]) by fmsmga007.fm.intel.com with ESMTP; 09 Oct 2019 06:05:35 -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: Thu, 10 Oct 2019 04:48:28 +0800 Message-Id: <20191009204837.65039-1-jin.yu@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20191009152515.21765> References: <20191009152515.21765> Subject: [dpdk-dev] [PATCH v11 0/9] 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" v2: - specify the APIs are split-ring only v3: - fix APIs issues and judge split or packed v4: - add rte_vhost_ prefix and fix issues v5: - add the packed ring support and add the vhost_blk example v6: - revise get_vring_base func depend on Tiwei's suggestion v7: - divide patch into small patches v8: - updated base on Maxime's comments v9: - updated base on Tiwei's comments v10: - fix code style and update some misleading log v11: - add the version log to cover letter 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 (9): 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 vhost-user-blk example which support inflight examples/vhost_blk/Makefile | 68 ++ examples/vhost_blk/blk.c | 125 +++ examples/vhost_blk/blk_spec.h | 95 +++ examples/vhost_blk/meson.build | 21 + examples/vhost_blk/vhost_blk.c | 1092 ++++++++++++++++++++++++ examples/vhost_blk/vhost_blk.h | 128 +++ examples/vhost_blk/vhost_blk_compat.c | 195 +++++ lib/librte_vhost/rte_vhost.h | 237 ++++- lib/librte_vhost/rte_vhost_version.map | 8 + lib/librte_vhost/vhost.c | 407 ++++++++- lib/librte_vhost/vhost.h | 16 + lib/librte_vhost/vhost_user.c | 456 +++++++++- lib/librte_vhost/vhost_user.h | 12 +- 13 files changed, 2847 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