net/virtio-user: fix Rx interrupts with multi-queue

The callfds[] array stores eventfds sequentially for Rx and Tx vq.

Fixes: 3d4fb6fd2505 ("net/virtio-user: support Rx interrupt")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 16c5871..89f8b22 100644 (file)
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -416,7 +416,7 @@ virtio_user_fill_intr_handle(struct virtio_user_dev *dev)
        }
 
        for (i = 0; i < dev->max_queue_pairs; ++i)
-               eth_dev->intr_handle->efds[i] = dev->callfds[i];
+               eth_dev->intr_handle->efds[i] = dev->callfds[2 * i];
        eth_dev->intr_handle->nb_efd = dev->max_queue_pairs;
        eth_dev->intr_handle->max_intr = dev->max_queue_pairs + 1;
        eth_dev->intr_handle->type = RTE_INTR_HANDLE_VDEV;