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net/virtio-user: fix interrupts with kernel vhost

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intr_handle->fd was wrongly initialized as 0 (usually as the stdio fd)
when virtio-user is used with vhost-kernel. So the interrupt thread
might wrongly treat stdin events as LSC interrupts.

Fixes: 3d4fb6fd2505 ("net/virtio-user: support Rx interrupt")
Cc: stable@dpdk.org

Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Jianfeng Tan 2018-02-12 03:20:28 +00:00 committed by Thomas Monjalon
parent bce7e9050f
commit eae6e70cea
1 changed files with 1 additions and 0 deletions
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drivers/net/virtio/virtio_user/virtio_user_dev.c
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@ -251,6 +251,7 @@ virtio_user_fill_intr_handle(struct virtio_user_dev *dev)
eth_dev->intr_handle->type = RTE_INTR_HANDLE_VDEV;
/* For virtio vdev, no need to read counter for clean */
eth_dev->intr_handle->efd_counter_size = 0;
eth_dev->intr_handle->fd = -1;
if (dev->vhostfd >= 0)
eth_dev->intr_handle->fd = dev->vhostfd;