From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhiyong Yang Subject: [PATCH] net/virtio: fix wrong use_msix value for legacy device Date: Wed, 27 Dec 2017 18:09:25 +0800 Message-ID: <20171227100925.12953-1-zhiyong.yang@intel.com> Cc: yliu@fridaylinux.org, maxime.coquelin@redhat.com, stable@dpdk.org, Zhiyong Yang To: dev@dpdk.org Return-path: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" If virtio fails to detect modern device, use_misx should be reset to VIRTIO_MSIX_NONE, otherwise this wrong value will be used after legacy device detection succeeds to be done. Fixes: fe19d49cb525 ("net/virtio: fix Rx interrupt with VFIO") Cc: stable@dpdk.org Signed-off-by: Zhiyong Yang --- drivers/net/virtio/virtio_pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c index 9574498fb..5582238fd 100644 --- a/drivers/net/virtio/virtio_pci.c +++ b/drivers/net/virtio/virtio_pci.c @@ -695,6 +695,7 @@ vtpci_init(struct rte_pci_device *dev, struct virtio_hw *hw) return 0; } + hw->use_msix = VIRTIO_MSIX_NONE; PMD_INIT_LOG(INFO, "trying with legacy virtio pci."); if (rte_pci_ioport_map(dev, 0, VTPCI_IO(hw)) < 0) { if (dev->kdrv == RTE_KDRV_UNKNOWN && -- 2.13.3