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-rw-r--r--lib/librte_vhost/rte_vdpa.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h
new file mode 100644
index 00000000..90465ca2
--- /dev/null
+++ b/lib/librte_vhost/rte_vdpa.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _RTE_VDPA_H_
+#define _RTE_VDPA_H_
+
+/**
+ * @file
+ *
+ * Device specific vhost lib
+ */
+
+#include <rte_pci.h>
+#include "rte_vhost.h"
+
+#define MAX_VDPA_NAME_LEN 128
+
+enum vdpa_addr_type {
+ PCI_ADDR,
+ VDPA_ADDR_MAX
+};
+
+struct rte_vdpa_dev_addr {
+ enum vdpa_addr_type type;
+ union {
+ uint8_t __dummy[64];
+ struct rte_pci_addr pci_addr;
+ };
+};
+
+struct rte_vdpa_dev_ops {
+ /* Get capabilities of this device */
+ int (*get_queue_num)(int did, uint32_t *queue_num);
+ int (*get_features)(int did, uint64_t *features);
+ int (*get_protocol_features)(int did, uint64_t *protocol_features);
+
+ /* Driver configure/close the device */
+ int (*dev_conf)(int vid);
+ int (*dev_close)(int vid);
+
+ /* Enable/disable this vring */
+ int (*set_vring_state)(int vid, int vring, int state);
+
+ /* Set features when changed */
+ int (*set_features)(int vid);
+
+ /* Destination operations when migration done */
+ int (*migration_done)(int vid);
+
+ /* Get the vfio group fd */
+ int (*get_vfio_group_fd)(int vid);
+
+ /* Get the vfio device fd */
+ int (*get_vfio_device_fd)(int vid);
+
+ /* Get the notify area info of the queue */
+ int (*get_notify_area)(int vid, int qid,
+ uint64_t *offset, uint64_t *size);
+
+ /* Reserved for future extension */
+ void *reserved[5];
+};
+
+struct rte_vdpa_device {
+ struct rte_vdpa_dev_addr addr;
+ struct rte_vdpa_dev_ops *ops;
+} __rte_cache_aligned;
+
+/* Register a vdpa device, return did if successful, -1 on failure */
+int __rte_experimental
+rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
+ struct rte_vdpa_dev_ops *ops);
+
+/* Unregister a vdpa device, return -1 on failure */
+int __rte_experimental
+rte_vdpa_unregister_device(int did);
+
+/* Find did of a vdpa device, return -1 on failure */
+int __rte_experimental
+rte_vdpa_find_device_id(struct rte_vdpa_dev_addr *addr);
+
+/* Find a vdpa device based on did */
+struct rte_vdpa_device * __rte_experimental
+rte_vdpa_get_device(int did);
+
+#endif /* _RTE_VDPA_H_ */