-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2017 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) 2010-2017 Intel Corporation
*/
#ifndef _RTE_VHOST_H_
#define RTE_VHOST_USER_CLIENT (1ULL << 0)
#define RTE_VHOST_USER_NO_RECONNECT (1ULL << 1)
#define RTE_VHOST_USER_DEQUEUE_ZERO_COPY (1ULL << 2)
+#define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3)
/**
* Information relating to memory regions including offsets to
struct vring_used *used;
uint64_t log_guest_addr;
+ /** Deprecated, use rte_vhost_vring_call() instead. */
int callfd;
+
int kickfd;
uint16_t size;
};
*/
int (*features_changed)(int vid, uint64_t features);
- void *reserved[4]; /**< Reserved for future extension */
+ int (*new_connection)(int vid);
+ void (*destroy_connection)(int vid);
+
+ void *reserved[2]; /**< Reserved for future extension */
};
/**
/**
* This function adds buffers to the virtio devices RX virtqueue. Buffers can
* be received from the physical port or from another virtual device. A packet
- * count is returned to indicate the number of packets that were succesfully
+ * count is returned to indicate the number of packets that were successfully
* added to the RX queue.
* @param vid
* vhost device ID
int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,
struct rte_vhost_vring *vring);
+/**
+ * Notify the guest that used descriptors have been added to the vring. This
+ * function acts as a memory barrier.
+ *
+ * @param vid
+ * vhost device ID
+ * @param vring_idx
+ * vring index
+ * @return
+ * 0 on success, -1 on failure
+ */
+int rte_vhost_vring_call(int vid, uint16_t vring_idx);
+
+/**
+ * Get vhost RX queue avail count.
+ *
+ * @param vid
+ * vhost device ID
+ * @param qid
+ * virtio queue index in mq case
+ * @return
+ * num of desc available
+ */
+uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid);
+
#ifdef __cplusplus
}
#endif