X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Futils%2Flustreapi_internal.h;h=92e4994e104df461e433e3e38fe9f6493210c5ea;hb=e954d93f264d8ae559cbd41ed6d7b977674dd42b;hp=a5d7ac15b204e3f586b058f50876b945b0f70a8c;hpb=fd44a6d8c71e59ed54b36b2b15e2bdd2b9a74d38;p=fs%2Flustre-release.git

diff --git a/lustre/utils/lustreapi_internal.h b/lustre/utils/lustreapi_internal.h
index a5d7ac1..92e4994 100644
--- a/lustre/utils/lustreapi_internal.h
+++ b/lustre/utils/lustreapi_internal.h
@@ -6,6 +6,8 @@
  * (C) Copyright 2012 Commissariat a l'energie atomique et aux energies
  *     alternatives
  *
+ * Copyright (c) 2016, 2017, Intel Corporation.
+ *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the GNU Lesser General Public License
  * (LGPL) version 2.1 or (at your discretion) any later version.
@@ -24,9 +26,6 @@
  *
  * lustre/utils/lustreapi_internal.h
  *
- */
-/*
- *
  * Author: Aurelien Degremont <aurelien.degremont@cea.fr>
  * Author: JC Lafoucriere <jacques-charles.lafoucriere@cea.fr>
  * Author: Thomas Leibovici <thomas.leibovici@cea.fr>
@@ -35,18 +34,75 @@
 #ifndef _LUSTREAPI_INTERNAL_H_
 #define _LUSTREAPI_INTERNAL_H_
 
-#include <uapi_kernelcomm.h>
+#include <limits.h>
+#include <stdint.h>
+
+#include <libcfs/util/ioctl.h>
+#include <libcfs/util/param.h>
+
+#include <linux/lustre/lustre_ioctl.h>
+#include <linux/lustre/lustre_kernelcomm.h>
+
+#define MAX_IOC_BUFLEN	8192
 
 #define WANT_PATH   0x1
 #define WANT_FSNAME 0x2
 #define WANT_FD     0x4
 #define WANT_INDEX  0x8
 #define WANT_ERROR  0x10
+
+/* mount point listings in /proc/mounts */
+#ifndef PROC_MOUNTS
+#define PROC_MOUNTS "/proc/mounts"
+#endif
+
 int get_root_path(int want, char *fsname, int *outfd, char *path, int index);
 int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
 	       int want_error);
-int get_param(const char *param_path, char *result,
-	      unsigned int result_size);
+int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len);
+int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len);
+int sattr_cache_get_defaults(const char *const fsname,
+			     const char *const pathname, unsigned int *scount,
+			     unsigned int *ssize, unsigned int *soffset);
+
+/**
+ * Often when determining the parameter path in sysfs/procfs we
+ * are often only interest set of data. This enum gives use the
+ * ability to return data of parameters for:
+ *
+ * FILTER_BY_FS_NAME: a specific file system mount
+ * FILTER_BY_PATH:    Using a Lustre file path to determine which
+ *		      file system is of interest
+ * FILTER_BY_EXACT:   The default behavior. Search the parameter
+ *		      path as is.
+ */
+enum param_filter {
+	FILTER_BY_NONE,
+	FILTER_BY_EXACT,
+	FILTER_BY_FS_NAME,
+	FILTER_BY_PATH
+};
+
+int get_lustre_param_path(const char *obd_type, const char *filter,
+			  enum param_filter type, const char *param_name,
+			  glob_t *param);
+int get_lustre_param_value(const char *obd_type, const char *filter,
+			   enum param_filter type, const char *param_name,
+			   char *value, size_t val_len);
+
+static inline int
+poolpath(glob_t *pool_path, const char *fsname, char *pathname)
+{
+	int rc;
+
+	if (fsname != NULL)
+		rc = get_lustre_param_path("lov", fsname, FILTER_BY_FS_NAME,
+					   "pools", pool_path);
+	else
+		rc = get_lustre_param_path("lov", pathname, FILTER_BY_PATH,
+					   "pools", pool_path);
+	return rc;
+}
 
 #define LLAPI_LAYOUT_MAGIC 0x11AD1107 /* LLAPILOT */
 
@@ -76,6 +132,21 @@ static inline bool llapi_stripe_index_is_valid(int64_t index)
  * terminology instead of the preferred "index". */
 #define llapi_stripe_offset_is_valid(os) llapi_stripe_index_is_valid(os)
 
+static inline bool llapi_dir_stripe_count_is_valid(int64_t count)
+{
+	return count >= -1 && count <= LMV_MAX_STRIPE_COUNT;
+}
+
+static inline bool llapi_dir_stripe_index_is_valid(int64_t index)
+{
+	return index >= -1 && index < LMV_MAX_STRIPE_COUNT;
+}
+
+static inline bool llapi_dir_hash_type_is_valid(int64_t hash)
+{
+	return hash > LMV_HASH_TYPE_UNKNOWN && hash <  LMV_HASH_TYPE_MAX;
+}
+
 /*
  * Kernel communication for Changelogs and HSM requests.
  */
@@ -84,5 +155,4 @@ int libcfs_ukuc_stop(struct lustre_kernelcomm *l);
 int libcfs_ukuc_get_rfd(struct lustre_kernelcomm *link);
 int libcfs_ukuc_msg_get(struct lustre_kernelcomm *l, char *buf, int maxsize,
 			int transport);
-
 #endif /* _LUSTREAPI_INTERNAL_H_ */