1 files changed, 138 insertions, 0 deletions
diff --git a/fs/orangefs/downcall.h b/fs/orangefs/downcall.h
new file mode 100644
index 000000000000..a79129f875f3
--- /dev/null
+++ b/fs/orangefs/downcall.h
@@ -0,0 +1,138 @@
+/*
+ * (C) 2001 Clemson University and The University of Chicago
+ *
+ * See COPYING in top-level directory.
+ */
+
+/*
+ *  Definitions of downcalls used in Linux kernel module.
+ */
+
+#ifndef __DOWNCALL_H
+#define __DOWNCALL_H
+
+/*
+ * Sanitized the device-client core interaction
+ * for clean 32-64 bit usage
+ */
+struct pvfs2_io_response {
+	__s64 amt_complete;
+};
+
+struct pvfs2_iox_response {
+	__s64 amt_complete;
+};
+
+struct pvfs2_lookup_response {
+	struct pvfs2_object_kref refn;
+};
+
+struct pvfs2_create_response {
+	struct pvfs2_object_kref refn;
+};
+
+struct pvfs2_symlink_response {
+	struct pvfs2_object_kref refn;
+};
+
+struct pvfs2_getattr_response {
+	struct PVFS_sys_attr_s attributes;
+	char link_target[PVFS2_NAME_LEN];
+};
+
+struct pvfs2_mkdir_response {
+	struct pvfs2_object_kref refn;
+};
+
+/*
+ * duplication of some system interface structures so that I don't have
+ * to allocate extra memory
+ */
+struct pvfs2_dirent {
+	char *d_name;
+	int d_length;
+	struct pvfs2_khandle khandle;
+};
+
+struct pvfs2_statfs_response {
+	__s64 block_size;
+	__s64 blocks_total;
+	__s64 blocks_avail;
+	__s64 files_total;
+	__s64 files_avail;
+};
+
+struct pvfs2_fs_mount_response {
+	__s32 fs_id;
+	__s32 id;
+	struct pvfs2_khandle root_khandle;
+};
+
+/* the getxattr response is the attribute value */
+struct pvfs2_getxattr_response {
+	__s32 val_sz;
+	__s32 __pad1;
+	char val[PVFS_MAX_XATTR_VALUELEN];
+};
+
+/* the listxattr response is an array of attribute names */
+struct pvfs2_listxattr_response {
+	__s32 returned_count;
+	__s32 __pad1;
+	__u64 token;
+	char key[PVFS_MAX_XATTR_LISTLEN * PVFS_MAX_XATTR_NAMELEN];
+	__s32 keylen;
+	__s32 __pad2;
+	__s32 lengths[PVFS_MAX_XATTR_LISTLEN];
+};
+
+struct pvfs2_param_response {
+	__s64 value;
+};
+
+#define PERF_COUNT_BUF_SIZE 4096
+struct pvfs2_perf_count_response {
+	char buffer[PERF_COUNT_BUF_SIZE];
+};
+
+#define FS_KEY_BUF_SIZE 4096
+struct pvfs2_fs_key_response {
+	__s32 fs_keylen;
+	__s32 __pad1;
+	char fs_key[FS_KEY_BUF_SIZE];
+};
+
+struct pvfs2_downcall_s {
+	__s32 type;
+	__s32 status;
+	/* currently trailer is used only by readdir */
+	__s64 trailer_size;
+	char * trailer_buf;
+
+	union {
+		struct pvfs2_io_response io;
+		struct pvfs2_iox_response iox;
+		struct pvfs2_lookup_response lookup;
+		struct pvfs2_create_response create;
+		struct pvfs2_symlink_response sym;
+		struct pvfs2_getattr_response getattr;
+		struct pvfs2_mkdir_response mkdir;
+		struct pvfs2_statfs_response statfs;
+		struct pvfs2_fs_mount_response fs_mount;
+		struct pvfs2_getxattr_response getxattr;
+		struct pvfs2_listxattr_response listxattr;
+		struct pvfs2_param_response param;
+		struct pvfs2_perf_count_response perf_count;
+		struct pvfs2_fs_key_response fs_key;
+	} resp;
+};
+
+struct pvfs2_readdir_response_s {
+	__u64 token;
+	__u64 directory_version;
+	__u32 __pad2;
+	__u32 pvfs_dirent_outcount;
+	struct pvfs2_dirent *dirent_array;
+};
+
+#endif /* __DOWNCALL_H */