From patchwork Wed Jan 8 06:25:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Itsuro Oda X-Patchwork-Id: 64283 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 33C55A04FA; Wed, 8 Jan 2020 07:25:22 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id F09981D90A; Wed, 8 Jan 2020 07:25:15 +0100 (CET) Received: from valinux.co.jp (vagw.valinux.co.jp [210.128.90.14]) by dpdk.org (Postfix) with ESMTP id 650721D6E4 for ; Wed, 8 Jan 2020 07:25:12 +0100 (CET) Received: by valinux.co.jp (Postfix, from userid 1000) id 0DA7524098A; Wed, 8 Jan 2020 15:25:10 +0900 (JST) From: oda@valinux.co.jp To: dev@dpdk.org Date: Wed, 8 Jan 2020 15:25:06 +0900 Message-Id: <20200108062510.3478-1-oda@valinux.co.jp> X-Mailer: git-send-email 2.17.1 Subject: [dpdk-dev] [PATCH 0/4] make vhost PMD available for secondary processes 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" From: Itsuro Oda vhost PMD has not been available for secondary processes since DPDK v18.11. (https://bugs.dpdk.org/show_bug.cgi?id=194) (for a long term !) This series of patches intend to make vhost PMD available for secondary processes. Because now setting vhost driver to communicate with a vhost-user master (ex. Qemu) is accomplished by the probe function of the primary process, only the primary process can be a vhost-user slave. With this patch, setting vhost driver is delayed at eth_dev configuration in order to be able to set it from a secondary process. Because (in the first place,) setting vhost driver is not necessary to be done at probe (it is enough to be done up to eth_dev start), this fix is no problem for the primary process. There is a precondition that the same process has to operate a vhost interface from begining to end (eth_dev configuration to eth_dev close). (This patch leaves it to user's responsibility.) This precondition will not be a problem in most use cases (including SPP). Itsuro Oda (4): net/vhost: remove an unused member net/vhost: allocate iface_name from heap net/vhost: delay vhost driver setup net/vhost: make secondary probe complete drivers/net/vhost/rte_eth_vhost.c | 152 +++++++++++++++++------------- 1 file changed, 88 insertions(+), 64 deletions(-)