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-rw-r--r--lib/librte_vhost/vhost.c107
1 files changed, 62 insertions, 45 deletions
diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 4f8b73a0..a407067e 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.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 <linux/vhost.h>
@@ -71,7 +42,9 @@ __vhost_iova_to_vva(struct virtio_net *dev, struct vhost_virtqueue *vq,
if (tmp_size == size)
return vva;
- if (!vhost_user_iotlb_pending_miss(vq, iova + tmp_size, perm)) {
+ iova += tmp_size;
+
+ if (!vhost_user_iotlb_pending_miss(vq, iova, perm)) {
/*
* iotlb_lock is read-locked for a full burst,
* but it only protects the iotlb cache.
@@ -81,8 +54,13 @@ __vhost_iova_to_vva(struct virtio_net *dev, struct vhost_virtqueue *vq,
*/
vhost_user_iotlb_rd_unlock(vq);
- vhost_user_iotlb_pending_insert(vq, iova + tmp_size, perm);
- vhost_user_iotlb_miss(dev, iova + tmp_size, perm);
+ vhost_user_iotlb_pending_insert(vq, iova, perm);
+ if (vhost_user_iotlb_miss(dev, iova, perm)) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "IOTLB miss req failed for IOVA 0x%" PRIx64 "\n",
+ iova);
+ vhost_user_iotlb_pending_remove(vq, iova, 1, perm);
+ }
vhost_user_iotlb_rd_lock(vq);
}
@@ -103,7 +81,7 @@ get_device(int vid)
return dev;
}
-static void
+void
cleanup_vq(struct vhost_virtqueue *vq, int destroy)
{
if ((vq->callfd >= 0) && (destroy != 0))
@@ -127,6 +105,15 @@ cleanup_device(struct virtio_net *dev, int destroy)
cleanup_vq(dev->virtqueue[i], destroy);
}
+void
+free_vq(struct vhost_virtqueue *vq)
+{
+ rte_free(vq->shadow_used_ring);
+ rte_free(vq->batch_copy_elems);
+ rte_mempool_free(vq->iotlb_pool);
+ rte_free(vq);
+}
+
/*
* Release virtqueues and device memory.
*/
@@ -134,16 +121,9 @@ static void
free_device(struct virtio_net *dev)
{
uint32_t i;
- struct vhost_virtqueue *vq;
- for (i = 0; i < dev->nr_vring; i++) {
- vq = dev->virtqueue[i];
-
- rte_free(vq->shadow_used_ring);
- rte_free(vq->batch_copy_elems);
- rte_mempool_free(vq->iotlb_pool);
- rte_free(vq);
- }
+ for (i = 0; i < dev->nr_vring; i++)
+ free_vq(dev->virtqueue[i]);
rte_free(dev);
}
@@ -259,6 +239,7 @@ alloc_vring_queue(struct virtio_net *dev, uint32_t vring_idx)
dev->virtqueue[vring_idx] = vq;
init_vring_queue(dev, vring_idx);
+ rte_spinlock_init(&vq->access_lock);
dev->nr_vring += 1;
@@ -277,7 +258,7 @@ reset_device(struct virtio_net *dev)
dev->features = 0;
dev->protocol_features = 0;
- dev->flags = 0;
+ dev->flags &= VIRTIO_DEV_BUILTIN_VIRTIO_NET;
for (i = 0; i < dev->nr_vring; i++)
reset_vring_queue(dev, i);
@@ -313,6 +294,7 @@ vhost_new_device(void)
vhost_devices[i] = dev;
dev->vid = i;
+ dev->flags = VIRTIO_DEV_BUILTIN_VIRTIO_NET;
dev->slave_req_fd = -1;
return i;
@@ -369,6 +351,20 @@ vhost_enable_dequeue_zero_copy(int vid)
dev->dequeue_zero_copy = 1;
}
+void
+vhost_set_builtin_virtio_net(int vid, bool enable)
+{
+ struct virtio_net *dev = get_device(vid);
+
+ if (dev == NULL)
+ return;
+
+ if (enable)
+ dev->flags |= VIRTIO_DEV_BUILTIN_VIRTIO_NET;
+ else
+ dev->flags &= ~VIRTIO_DEV_BUILTIN_VIRTIO_NET;
+}
+
int
rte_vhost_get_mtu(int vid, uint16_t *mtu)
{
@@ -519,6 +515,27 @@ rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,
return 0;
}
+int
+rte_vhost_vring_call(int vid, uint16_t vring_idx)
+{
+ struct virtio_net *dev;
+ struct vhost_virtqueue *vq;
+
+ dev = get_device(vid);
+ if (!dev)
+ return -1;
+
+ if (vring_idx >= VHOST_MAX_VRING)
+ return -1;
+
+ vq = dev->virtqueue[vring_idx];
+ if (!vq)
+ return -1;
+
+ vhost_vring_call(dev, vq);
+ return 0;
+}
+
uint16_t
rte_vhost_avail_entries(int vid, uint16_t queue_id)
{