Virtual File System module load and unload

Change-Id: Iaa6a256a8a15ac48bfba5bc1cab292c5ac246166
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/253
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

2 files changed, 63 insertions, 0 deletions

diff --git a/src/include/usr/vfs/vfs.H b/src/include/usr/vfs/vfs.H
new file mode 100644
index 000000000..bffbddaa0
--- /dev/null
+++ b/src/include/usr/vfs/vfs.H
@@ -0,0 +1,41 @@
+#ifndef __USR_VFS_H
+#define __USR_VFS_H
+
+#include <errl/errlentry.H>
+#include <sys/vfs.h>
+
+namespace VFS
+{
+    /** 
+     * Load or unload a module from the extended image.
+     * @param[in] i_module Module name
+     * @param[in] i_msgtype [VFS_MSG_LOAD | VFS_MSG_UNLOAD]
+     * @return errlHandl_t on error
+     */
+    errlHndl_t module_load_unload(const char * i_module, VfsMessages i_msgtype);
+
+    /**
+     * Loads a module from the extended image and initializes it
+     * @param[in] i_module Module name
+     * @return errlHndl_t on error
+     */
+    ALWAYS_INLINE
+    inline errlHndl_t module_load(const char * i_module) 
+    {
+        return VFS::module_load_unload(i_module,VFS_MSG_LOAD);
+    }
+
+    /**
+     * Destroys and unloads module.
+     * @param[in] i_module Module name
+     * @return errlHndl_t on error
+     */
+    ALWAYS_INLINE
+    inline errlHndl_t module_unload(const char * i_module)
+    {
+        return VFS::module_load_unload(i_module, VFS_MSG_UNLOAD);
+    }
+
+};
+
+#endif
diff --git a/src/include/usr/vfs/vfs_reasoncodes.H b/src/include/usr/vfs/vfs_reasoncodes.H
new file mode 100644
index 000000000..eed6c5ad5
--- /dev/null
+++ b/src/include/usr/vfs/vfs_reasoncodes.H
@@ -0,0 +1,22 @@
+#ifndef VFS_REASONCODES_H
+#define VFS_REASONCODES_H
+
+#include <hbotcompid.H>
+
+namespace VFS
+{
+    enum VfsModuleID
+    {
+        UNDEFINED_MODULE_ERRL_ID    = 0,
+        VFS_MODULE_ID,
+    };
+
+    enum VfsReasonCode
+    {
+        VFS_LOAD_FAILED     =       VFS_COMP_ID | 0x01,
+        VFS_UNLOAD_FAILED   =       VFS_COMP_ID | 0x02,
+        VFS_ALLOC_VMEM_FAILED =     VFS_COMP_ID | 0x03,
+    };
+};
+
+#endif