[SPARC64]: Add domain-services nodes to VIO device tree.

They sit under the root of the MD tree unlike the rest of
the LDC channel based virtual devices.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 29 insertions, 7 deletions

diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c
index 21c015e8365b..7eccc91cd59d 100644
--- a/arch/sparc64/kernel/vio.c
+++ b/arch/sparc64/kernel/vio.c
@@ -104,18 +104,24 @@ static ssize_t devspec_show(struct device *dev,
         struct vio_dev *vdev = to_vio_dev(dev);
         const char *str = "none";
 
-        if (vdev->type) {
-                if (!strcmp(vdev->type, "network"))
-                        str = "vnet";
-                else if (!strcmp(vdev->type, "block"))
-                        str = "vdisk";
-        }
+        if (!strcmp(vdev->type, "network"))
+                str = "vnet";
+        else if (!strcmp(vdev->type, "block"))
+                str = "vdisk";
 
         return sprintf(buf, "%s\n", str);
 }
 
+static ssize_t type_show(struct device *dev,
+                struct device_attribute *attr, char *buf)
+{
+        struct vio_dev *vdev = to_vio_dev(dev);
+        return sprintf(buf, "%s\n", vdev->type);
+}
+
 static struct device_attribute vio_dev_attrs[] = {
         __ATTR_RO(devspec),
+        __ATTR_RO(type),
         __ATTR_NULL
 };
 
@@ -201,8 +207,11 @@ static struct vio_dev *vio_create_one(struct mdesc_node *mp,
         int err, clen;
 
         type = md_get_property(mp, "device-type", NULL);
-        if (!type)
+        if (!type) {
                 type = md_get_property(mp, "name", NULL);
+                if (!type)
+                        type = mp->name;
+        }
         compat = md_get_property(mp, "device-type", &clen);
 
         vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
@@ -279,6 +288,8 @@ static void walk_tree(struct mdesc_node *n, struct vio_dev *parent)
 
 static void create_devices(struct mdesc_node *root)
 {
+        struct mdesc_node *mp;
+
         root_vdev = vio_create_one(root, NULL);
         if (!root_vdev) {
                 printk(KERN_ERR "VIO: Coult not create root device.\n");
@@ -286,6 +297,17 @@ static void create_devices(struct mdesc_node *root)
         }
 
         walk_tree(root, root_vdev);
+
+        /* Domain services is odd as it doesn't sit underneath the
+         * channel-devices node, so we plug it in manually.
+         */
+        mp = md_find_node_by_name(NULL, "domain-services");
+        if (mp) {
+                struct vio_dev *parent = vio_create_one(mp, &root_vdev->dev);
+
+                if (parent)
+                        walk_tree(mp, parent);
+        }
 }
 
 const char *channel_devices_node = "channel-devices";