block: Accept device model name for eject

In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.

This converts eject to accept a qdev device name.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

blockdev.c

@@ -2265,7 +2265,9 @@ exit:
     block_job_txn_unref(block_job_txn);
 }
 
-void qmp_eject(const char *device, bool has_force, bool force, Error **errp)
+void qmp_eject(bool has_device, const char *device,
+               bool has_id, const char *id,
+               bool has_force, bool force, Error **errp)
 {
     Error *local_err = NULL;
     int rc;
@@ -2274,14 +2276,16 @@ void qmp_eject(const char *device, bool has_force, bool force, Error **errp)
         force = false;
     }
 
-    rc = do_open_tray(device, NULL, force, &local_err);
+    rc = do_open_tray(has_device ? device : NULL,
+                      has_id ? id : NULL,
+                      force, &local_err);
     if (rc && rc != -ENOSYS) {
         error_propagate(errp, local_err);
         return;
     }
     error_free(local_err);
 
-    qmp_x_blockdev_remove_medium(true, device, false, NULL, errp);
+    qmp_x_blockdev_remove_medium(has_device, device, has_id, id, errp);
 }
 
 void qmp_block_passwd(bool has_device, const char *device,

docs/qmp-commands.txt

@@ -72,12 +72,14 @@ Eject a removable medium.
 
 Arguments:
 
-- force: force ejection (json-bool, optional)
-- device: device name (json-string)
+- "force": force ejection (json-bool, optional)
+- "device": block device name (deprecated, use @id instead)
+            (json-string, optional)
+- "id": the name or QOM path of the guest device (json-string, optional)
 
 Example:
 
--> { "execute": "eject", "arguments": { "device": "ide1-cd0" } }
+-> { "execute": "eject", "arguments": { "id": "ide0-1-0" } }
 <- { "return": {} }
 
 Note: The "force" argument defaults to false.

hmp.c

@@ -1376,7 +1376,7 @@ void hmp_eject(Monitor *mon, const QDict *qdict)
     const char *device = qdict_get_str(qdict, "device");
     Error *err = NULL;
 
-    qmp_eject(device, true, force, &err);
+    qmp_eject(true, device, false, NULL, true, force, &err);
     hmp_handle_error(mon, &err);
 }
 

qapi/block.json

@@ -125,7 +125,9 @@
 #
 # Ejects a device from a removable drive.
 #
-# @device:  The name of the device
+# @device:  #optional Block device name (deprecated, use @id instead)
+#
+# @id:      #optional The name or QOM path of the guest device (since: 2.8)
 #
 # @force:   @optional If true, eject regardless of whether the drive is locked.
 #           If not specified, the default value is false.
@@ -137,7 +139,10 @@
 #
 # Since: 0.14.0
 ##
-{ 'command': 'eject', 'data': {'device': 'str', '*force': 'bool'} }
+{ 'command': 'eject',
+  'data': { '*device': 'str',
+            '*id': 'str',
+            '*force': 'bool' } }
 
 ##
 # @nbd-server-start:

ui/cocoa.m

@@ -1085,7 +1085,8 @@ QemuCocoaView *cocoaView;
     }
 
     Error *err = NULL;
-    qmp_eject([drive cStringUsingEncoding: NSASCIIStringEncoding], false, false, &err);
+    qmp_eject(true, [drive cStringUsingEncoding: NSASCIIStringEncoding],
+              false, NULL, false, false, &err);
     handleAnyDeviceErrors(err);
 }