1 files changed, 114 insertions, 4 deletions

diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 46d373287a30..383e89a5c9f0 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -80,13 +80,123 @@ struct i2o_cfg_info {
 static struct i2o_cfg_info *open_files = NULL;
 static ulong i2o_cfg_info_id = 0;
 
-/*
- *      Each of these describes an i2o message handler. They are
- *      multiplexed by the i2o_core code
+/**
+ *      i2o_config_read_hrt - Returns the HRT of the controller
+ *      @kob: kernel object handle
+ *      @buf: buffer into which the HRT should be copied
+ *      @off: file offset
+ *      @count: number of bytes to read
+ *
+ *      Put @count bytes starting at @off into @buf from the HRT of the I2O
+ *      controller corresponding to @kobj.
+ *
+ *      Returns number of bytes copied into buffer.
+ */
+static ssize_t i2o_config_read_hrt(struct kobject *kobj, char *buf,
+                                   loff_t offset, size_t count)
+{
+        struct i2o_controller *c = to_i2o_controller(container_of(kobj,
+                                                                  struct device,
+                                                                  kobj));
+        i2o_hrt *hrt = c->hrt.virt;
+
+        u32 size = (hrt->num_entries * hrt->entry_len + 2) * 4;
+
+        if(offset > size)
+                return 0;
+
+        if(offset + count > size)
+                count = size - offset;
+
+        memcpy(buf, (u8 *) hrt + offset, count);
+
+        return count;
+};
+
+/**
+ *      i2o_config_read_lct - Returns the LCT of the controller
+ *      @kob: kernel object handle
+ *      @buf: buffer into which the LCT should be copied
+ *      @off: file offset
+ *      @count: number of bytes to read
+ *
+ *      Put @count bytes starting at @off into @buf from the LCT of the I2O
+ *      controller corresponding to @kobj.
+ *
+ *      Returns number of bytes copied into buffer.
+ */
+static ssize_t i2o_config_read_lct(struct kobject *kobj, char *buf,
+                                   loff_t offset, size_t count)
+{
+        struct i2o_controller *c = to_i2o_controller(container_of(kobj,
+                                                                  struct device,
+                                                                  kobj));
+        u32 size = c->lct->table_size * 4;
+
+        if(offset > size)
+                return 0;
+
+        if(offset + count > size)
+                count = size - offset;
+
+        memcpy(buf, (u8 *) c->lct + offset, count);
+
+        return count;
+};
+
+/* attribute for HRT in sysfs */
+static struct bin_attribute i2o_config_hrt_attr = {
+        .attr = {
+                .name = "hrt",
+                .mode = S_IRUGO,
+                .owner = THIS_MODULE
+        },
+        .size = 0,
+        .read = i2o_config_read_hrt
+};
+
+/* attribute for LCT in sysfs */
+static struct bin_attribute i2o_config_lct_attr = {
+        .attr = {
+                .name = "lct",
+                .mode = S_IRUGO,
+                .owner = THIS_MODULE
+        },
+        .size = 0,
+        .read = i2o_config_read_lct
+};
+
+/**
+ *      i2o_config_notify_controller_add - Notify of added controller
+ *      @c: the controller which was added
+ *
+ *      If a I2O controller is added, we catch the notification to add sysfs
+ *      entries.
+ */
+static void i2o_config_notify_controller_add(struct i2o_controller *c)
+{
+        sysfs_create_bin_file(&(c->device.kobj), &i2o_config_hrt_attr);
+        sysfs_create_bin_file(&(c->device.kobj), &i2o_config_lct_attr);
+};
+
+/**
+ *      i2o_config_notify_controller_remove - Notify of removed controller
+ *      @c: the controller which was removed
+ *
+ *      If a I2O controller is removed, we catch the notification to remove the
+ *      sysfs entries.
  */
+static void i2o_config_notify_controller_remove(struct i2o_controller *c)
+{
+        sysfs_remove_bin_file(&c->device.kobj, &i2o_config_lct_attr);
+        sysfs_remove_bin_file(&c->device.kobj, &i2o_config_hrt_attr);
+};
 
+/* Config OSM driver struct */
 static struct i2o_driver i2o_config_driver = {
-        .name = OSM_NAME
+        .name = OSM_NAME,
+        .notify_controller_add = i2o_config_notify_controller_add,
+        .notify_controller_remove = i2o_config_notify_controller_remove
 };
 
 static int i2o_cfg_getiops(unsigned long arg)