New upstream version 18.02

[deb_dpdk.git] / drivers / net / virtio / virtio_user / virtio_user_dev.c

diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 906d7a2..f90fee9 100644 (file)
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
  */
 
 #include <stdint.h>
@@ -128,6 +99,9 @@ virtio_user_start_device(struct virtio_user_dev *dev)
        uint64_t features;
        int ret;
 
+       /* Do not check return as already done in init, or reset in stop */
+       dev->ops->send_request(dev, VHOST_USER_SET_OWNER, NULL);
+
        /* Step 0: tell vhost to create queues */
        if (virtio_user_queue_setup(dev, virtio_user_create_queue) < 0)
                goto error;
@@ -171,6 +145,11 @@ int virtio_user_stop_device(struct virtio_user_dev *dev)
        for (i = 0; i < dev->max_queue_pairs; ++i)
                dev->ops->enable_qp(dev, i, 0);
 
+       if (dev->ops->send_request(dev, VHOST_USER_RESET_OWNER, NULL) < 0) {
+               PMD_DRV_LOG(INFO, "Failed to reset the device\n");
+               return -1;
+       }
+
        return 0;
 }
 
@@ -272,6 +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;
 
@@ -356,6 +336,7 @@ virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues,
                PMD_INIT_LOG(ERR, "backend set up fails");
                return -1;
        }
+
        if (dev->ops->send_request(dev, VHOST_USER_SET_OWNER, NULL) < 0) {
                PMD_INIT_LOG(ERR, "set_owner fails: %s", strerror(errno));
                return -1;