From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Hajnoczi Subject: [PATCH 0/2] vhost: fix VIRTIO_NET_F_MQ vhost_scsi breakage Date: Wed, 31 Jan 2018 17:46:49 +0000 Message-ID: <20180131174651.6386-1-stefanha@redhat.com> Cc: Maxime Coquelin , Yuanhan Liu , Stefan Hajnoczi To: dev@dpdk.org Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id C8C2A1B74A for ; Wed, 31 Jan 2018 18:48:37 +0100 (CET) List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" These patches fix a recent regression in librte_vhost that breaks the vhost_scsi example application. vhost_user.c assumes all devices are vhost net backends when handling the VIRTIO_NET_F_MQ feature bit. The code is triggered by vhost scsi devices and causes virtqueues to be removed. See Patch 2 for details. Patch 1 puts the infrastructure in place to distinguish between the built-in virtio_net.c driver and generic vhost device backend usage. Patch 2 fixes the regression by handling VIRTIO_NET_F_MQ only when the built-in virtio_net.c driver is in use. Stefan Hajnoczi (2): vhost: add flag for built-in virtio_net.c driver vhost: only drop vqs with built-in virtio_net.c driver lib/librte_vhost/vhost.h | 3 +++ lib/librte_vhost/socket.c | 15 +++++++++++++++ lib/librte_vhost/vhost.c | 17 ++++++++++++++++- lib/librte_vhost/vhost_user.c | 3 ++- lib/librte_vhost/virtio_net.c | 14 ++++++++++++++ 5 files changed, 50 insertions(+), 2 deletions(-) -- 2.14.3