#define RTE_VHOST_USER_DEQUEUE_ZERO_COPY (1ULL << 2)
#define RTE_VHOST_USER_IOMMU_SUPPORT (1ULL << 3)
#define RTE_VHOST_USER_POSTCOPY_SUPPORT (1ULL << 4)
+/* support mbuf with external buffer attached */
+#define RTE_VHOST_USER_EXTBUF_SUPPORT (1ULL << 5)
+/* support only linear buffers (no chained mbufs) */
+#define RTE_VHOST_USER_LINEARBUF_SUPPORT (1ULL << 6)
/** Protocol features. */
#ifndef VHOST_USER_PROTOCOL_F_MQ
int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx,
struct rte_vhost_vring *vring);
+/**
+ * Get guest inflight vring info, including inflight ring and resubmit list.
+ *
+ * @param vid
+ * vhost device ID
+ * @param vring_idx
+ * vring index
+ * @param vring
+ * the structure to hold the requested inflight vring info
+ * @return
+ * 0 on success, -1 on failure
+ */
+__rte_experimental
+int
+rte_vhost_get_vhost_ring_inflight(int vid, uint16_t vring_idx,
+ struct rte_vhost_ring_inflight *vring);
+
/**
* Set split inflight descriptor.
*
rte_vhost_get_vring_base(int vid, uint16_t queue_id,
uint16_t *last_avail_idx, uint16_t *last_used_idx);
+/**
+ * Get last_avail/last_used of the vhost virtqueue
+ *
+ * This function is designed for the reconnection and it's specific for
+ * the packed ring as we can get the two parameters from the inflight
+ * queueregion
+ *
+ * @param vid
+ * vhost device ID
+ * @param queue_id
+ * vhost queue index
+ * @param last_avail_idx
+ * vhost last_avail_idx to get
+ * @param last_used_idx
+ * vhost last_used_idx to get
+ * @return
+ * 0 on success, -1 on failure
+ */
+__rte_experimental
+int
+rte_vhost_get_vring_base_from_inflight(int vid,
+ uint16_t queue_id, uint16_t *last_avail_idx, uint16_t *last_used_idx);
+
/**
* Set last_avail/used_idx of the vhost virtqueue
*