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-rw-r--r--fs/orangefs/downcall.h137
1 files changed, 137 insertions, 0 deletions
diff --git a/fs/orangefs/downcall.h b/fs/orangefs/downcall.h
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+++ b/fs/orangefs/downcall.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * (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 orangefs_io_response {
+ __s64 amt_complete;
+};
+
+struct orangefs_lookup_response {
+ struct orangefs_object_kref refn;
+};
+
+struct orangefs_create_response {
+ struct orangefs_object_kref refn;
+};
+
+struct orangefs_symlink_response {
+ struct orangefs_object_kref refn;
+};
+
+struct orangefs_getattr_response {
+ struct ORANGEFS_sys_attr_s attributes;
+ char link_target[ORANGEFS_NAME_MAX];
+};
+
+struct orangefs_mkdir_response {
+ struct orangefs_object_kref refn;
+};
+
+struct orangefs_statfs_response {
+ __s64 block_size;
+ __s64 blocks_total;
+ __s64 blocks_avail;
+ __s64 files_total;
+ __s64 files_avail;
+};
+
+struct orangefs_fs_mount_response {
+ __s32 fs_id;
+ __s32 id;
+ struct orangefs_khandle root_khandle;
+};
+
+/* the getxattr response is the attribute value */
+struct orangefs_getxattr_response {
+ __s32 val_sz;
+ __s32 __pad1;
+ char val[ORANGEFS_MAX_XATTR_VALUELEN];
+};
+
+/* the listxattr response is an array of attribute names */
+struct orangefs_listxattr_response {
+ __s32 returned_count;
+ __s32 __pad1;
+ __u64 token;
+ char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
+ __s32 keylen;
+ __s32 __pad2;
+ __s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
+};
+
+struct orangefs_param_response {
+ union {
+ __s64 value64;
+ __s32 value32[2];
+ } u;
+};
+
+#define PERF_COUNT_BUF_SIZE 4096
+struct orangefs_perf_count_response {
+ char buffer[PERF_COUNT_BUF_SIZE];
+};
+
+#define FS_KEY_BUF_SIZE 4096
+struct orangefs_fs_key_response {
+ __s32 fs_keylen;
+ __s32 __pad1;
+ char fs_key[FS_KEY_BUF_SIZE];
+};
+
+/* 2.9.6 */
+struct orangefs_features_response {
+ __u64 features;
+};
+
+struct orangefs_downcall_s {
+ __s32 type;
+ __s32 status;
+ /* currently trailer is used only by readdir */
+ __s64 trailer_size;
+ char *trailer_buf;
+
+ union {
+ struct orangefs_io_response io;
+ struct orangefs_lookup_response lookup;
+ struct orangefs_create_response create;
+ struct orangefs_symlink_response sym;
+ struct orangefs_getattr_response getattr;
+ struct orangefs_mkdir_response mkdir;
+ struct orangefs_statfs_response statfs;
+ struct orangefs_fs_mount_response fs_mount;
+ struct orangefs_getxattr_response getxattr;
+ struct orangefs_listxattr_response listxattr;
+ struct orangefs_param_response param;
+ struct orangefs_perf_count_response perf_count;
+ struct orangefs_fs_key_response fs_key;
+ struct orangefs_features_response features;
+ } resp;
+};
+
+/*
+ * The readdir response comes in the trailer. It is followed by the
+ * directory entries as described in dir.c.
+ */
+
+struct orangefs_readdir_response_s {
+ __u64 token;
+ __u64 directory_version;
+ __u32 __pad2;
+ __u32 orangefs_dirent_outcount;
+};
+
+#endif /* __DOWNCALL_H */