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[Qemu-devel] [PATCH v3 07/10] block: Accept device model name for eject


From: Kevin Wolf
Subject: [Qemu-devel] [PATCH v3 07/10] block: Accept device model name for eject
Date: Tue, 20 Sep 2016 13:38:46 +0200

In order to remove the necessity to use 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 <address@hidden>
---
 blockdev.c            | 10 +++++++---
 docs/qmp-commands.txt |  8 +++++---
 hmp.c                 |  2 +-
 qapi/block.json       |  9 +++++++--
 4 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index a007b22..3d92724 100644
--- a/blockdev.c
+++ b/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,
diff --git a/docs/qmp-commands.txt b/docs/qmp-commands.txt
index e77bf2f..9024ef2 100644
--- a/docs/qmp-commands.txt
+++ b/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.
diff --git a/hmp.c b/hmp.c
index 0a16aef..09827b3 100644
--- a/hmp.c
+++ b/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);
 }
 
diff --git a/qapi/block.json b/qapi/block.json
index 8b08bd2..c896bd1 100644
--- a/qapi/block.json
+++ b/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:
-- 
1.8.3.1




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