#ifndef _LUSTREAPI_INTERNAL_H_
#define _LUSTREAPI_INTERNAL_H_
+#include <glob.h>
+#include <uapi_kernelcomm.h>
+
#define WANT_PATH 0x1
#define WANT_FSNAME 0x2
#define WANT_FD 0x4
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);
+
+/**
+ * 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_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 */
* terminology instead of the preferred "index". */
#define llapi_stripe_offset_is_valid(os) llapi_stripe_index_is_valid(os)
+/*
+ * Kernel communication for Changelogs and HSM requests.
+ */
+int libcfs_ukuc_start(struct lustre_kernelcomm *l, int groups, int rfd_flags);
+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_ */