vhost: replace vDPA device ID in Vhost

[dpdk.git] / lib / librte_vhost / rte_vhost.h

diff --git a/lib/librte_vhost/rte_vhost.h b/lib/librte_vhost/rte_vhost.h
index 7b5dc87..2fbc364 100644 (file)
--- a/lib/librte_vhost/rte_vhost.h
+++ b/lib/librte_vhost/rte_vhost.h
@@ -10,6 +10,7 @@
  * Interface to vhost-user
  */
 
+#include <stdbool.h>
 #include <stdint.h>
 #include <sys/eventfd.h>
 
@@ -68,6 +69,10 @@ extern "C" {
 #define VHOST_USER_PROTOCOL_F_PAGEFAULT 8
 #endif
 
+#ifndef VHOST_USER_PROTOCOL_F_CONFIG
+#define VHOST_USER_PROTOCOL_F_CONFIG 9
+#endif
+
 #ifndef VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD
 #define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10
 #endif
@@ -85,6 +90,8 @@ extern "C" {
 #define VHOST_USER_F_PROTOCOL_FEATURES 30
 #endif
 
+struct rte_vdpa_device;
+
 /**
  * Information relating to memory regions including offsets to
  * addresses in QEMUs memory file.
@@ -253,7 +260,7 @@ struct vhost_device_ops {
 
        /**
         * This callback gets called each time a guest gets notified
-        * about waiting packets. This is the interrupt handling trough
+        * about waiting packets. This is the interrupt handling through
         * the eventfd_write(callfd), which can be used for counting these
         * "slow" syscalls.
         */
@@ -396,14 +403,15 @@ int rte_vhost_driver_unregister(const char *path);
  *
  * @param path
  *  The vhost-user socket file path
- * @param did
- *  Device id
+ * @param dev
+ *  vDPA device pointer
  * @return
  *  0 on success, -1 on failure
  */
 __rte_experimental
 int
-rte_vhost_driver_attach_vdpa_device(const char *path, int did);
+rte_vhost_driver_attach_vdpa_device(const char *path,
+               struct rte_vdpa_device *dev);
 
 /**
  * Unset the vdpa device id
@@ -423,11 +431,11 @@ rte_vhost_driver_detach_vdpa_device(const char *path);
  * @param path
  *  The vhost-user socket file path
  * @return
- *  Device id, -1 on failure
+ *  vDPA device pointer, NULL on failure
  */
 __rte_experimental
-int
-rte_vhost_driver_get_vdpa_device_id(const char *path);
+struct rte_vdpa_device *
+rte_vhost_driver_get_vdpa_device(const char *path);
 
 /**
  * Set the feature bits the vhost-user driver supports.
@@ -971,11 +979,25 @@ rte_vhost_extern_callback_register(int vid,
  * @param vid
  *  vhost device id
  * @return
- *  device id
+ *  vDPA device pointer on success, NULL on failure
+ */
+__rte_experimental
+struct rte_vdpa_device *
+rte_vhost_get_vdpa_device(int vid);
+
+/**
+ * Notify the guest that should get virtio configuration space from backend.
+ *
+ * @param vid
+ *  vhost device ID
+ * @param need_reply
+ *  wait for the master response the status of this operation
+ * @return
+ *  0 on success, < 0 on failure
  */
 __rte_experimental
 int
-rte_vhost_get_vdpa_device_id(int vid);
+rte_vhost_slave_config_change(int vid, bool need_reply);
 
 #ifdef __cplusplus
 }