* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
#ifndef _LUSTRE_USER_H
#define _LUSTRE_USER_H
+/** \defgroup lustreuser lustreuser
+ *
+ * @{
+ */
+
#include <lustre/ll_fiemap.h>
#if defined(__linux__)
#include <linux/lustre_user.h>
/* for statfs() */
#define LL_SUPER_MAGIC 0x0BD00BD0
-#ifndef EXT3_IOC_GETFLAGS
-#define EXT3_IOC_GETFLAGS _IOR('f', 1, long)
-#define EXT3_IOC_SETFLAGS _IOW('f', 2, long)
-#define EXT3_IOC_GETVERSION _IOR('f', 3, long)
-#define EXT3_IOC_SETVERSION _IOW('f', 4, long)
-#define EXT3_IOC_GETVERSION_OLD _IOR('v', 1, long)
-#define EXT3_IOC_SETVERSION_OLD _IOW('v', 2, long)
-#define EXT3_IOC_FIEMAP _IOWR('f', 11, struct ll_user_fiemap)
+#ifndef FSFILT_IOC_GETFLAGS
+#define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
+#define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
+#define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
+#define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
+#define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
+#define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
+#define FSFILT_IOC_FIEMAP _IOWR('f', 11, struct ll_user_fiemap)
#endif
/* FIEMAP flags supported by Lustre */
#define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
-struct obd_statfs;
+enum obd_statfs_state {
+ OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
+ OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
+ OS_STATE_RDONLY_1 = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
+ OS_STATE_RDONLY_2 = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
+ OS_STATE_RDONLY_3 = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
+};
-/*
+struct obd_statfs {
+ __u64 os_type;
+ __u64 os_blocks;
+ __u64 os_bfree;
+ __u64 os_bavail;
+ __u64 os_files;
+ __u64 os_ffree;
+ __u8 os_fsid[40];
+ __u32 os_bsize;
+ __u32 os_namelen;
+ __u64 os_maxbytes;
+ __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
+ __u32 os_spare1;
+ __u32 os_spare2;
+ __u32 os_spare3;
+ __u32 os_spare4;
+ __u32 os_spare5;
+ __u32 os_spare6;
+ __u32 os_spare7;
+ __u32 os_spare8;
+ __u32 os_spare9;
+};
+
+
+/*
* The ioctl naming rules:
* LL_* - works on the currently opened filehandle instead of parent dir
* *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
* *STRIPE* - set/get lov_user_md
* *INFO - set/get lov_user_mds_data
*/
+/* see <lustre_obd.h> for ioctl numberss 101-150 */
#define LL_IOC_GETFLAGS _IOR ('f', 151, long)
#define LL_IOC_SETFLAGS _IOW ('f', 152, long)
#define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
#define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
#define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
#define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long)
+#define LL_IOC_RECREATE_FID _IOW ('f', 157, struct lu_fid)
#define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
#define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
#define LL_IOC_QUOTACHECK _IOW ('f', 160, int)
#define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *)
#define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl *)
-#define LL_IOC_JOIN _IOW ('f', 163, long)
#define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
#define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *)
#define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
#define LL_IOC_RMTACL _IOW ('f', 167, long)
-
#define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
-
#define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
#define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
#define LL_IOC_LLOOP_INFO _IOWR('f', 171, long)
#define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
#define LL_IOC_PATH2FID _IOR ('f', 173, long)
+#define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
+#define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
+#define LL_IOC_HSM_CT_START _IOW ('f', 176,struct lustre_kernelcomm)
+/* see <lustre_obd.h> for ioctl numbers 177-210 */
+
#define LL_STATFS_MDC 1
#define LL_STATFS_LOV 2
#define LL_IOC_OBD_STATFS IOC_OBD_STATFS
#define IOC_MDC_GETSTRIPE IOC_MDC_GETFILESTRIPE
-/* Do not define O_CHECK_STALE as 0200000000,
- * which is conflict with MDS_OPEN_OWNEROVERRIDE */
-#define O_CHECK_STALE 020000000 /* hopefully this does not conflict */
#define O_LOV_DELAY_CREATE 0100000000 /* hopefully this does not conflict */
-#define O_JOIN_FILE 0400000000 /* hopefully this does not conflict */
#define LL_FILE_IGNORE_LOCK 0x00000001
#define LL_FILE_GROUP_LOCKED 0x00000002
#define LOV_USER_MAGIC_V1 0x0BD10BD0
#define LOV_USER_MAGIC LOV_USER_MAGIC_V1
-#define LOV_USER_MAGIC_JOIN 0x0BD20BD0
+#define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
#define LOV_USER_MAGIC_V3 0x0BD30BD0
#define LOV_PATTERN_RAID0 0x001
#define lov_user_ost_data lov_user_ost_data_v1
struct lov_user_ost_data_v1 { /* per-stripe data structure */
__u64 l_object_id; /* OST object ID */
- __u64 l_object_gr; /* OST object group (creating MDS number) */
+ __u64 l_object_seq; /* OST object seq number */
__u32 l_ost_gen; /* generation of this OST index */
__u32 l_ost_idx; /* OST index in LOV */
} __attribute__((packed));
__u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
__u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
__u64 lmm_object_id; /* LOV object ID */
- __u64 lmm_object_gr; /* LOV object group */
+ __u64 lmm_object_seq; /* LOV object seq */
__u32 lmm_stripe_size; /* size of stripe in bytes */
__u16 lmm_stripe_count; /* num stripes in use for this object */
__u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
-} __attribute__((packed));
+} __attribute__((packed, __may_alias__));
struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
__u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
__u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
__u64 lmm_object_id; /* LOV object ID */
- __u64 lmm_object_gr; /* LOV object group */
+ __u64 lmm_object_seq; /* LOV object seq */
__u32 lmm_stripe_size; /* size of stripe in bytes */
__u16 lmm_stripe_count; /* num stripes in use for this object */
__u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
struct ll_recreate_obj {
__u64 lrc_id;
- __u64 lrc_group;
__u32 lrc_ost_idx;
};
+struct ll_fid {
+ __u64 id; /* holds object id */
+ __u32 generation; /* holds object generation */
+ __u32 f_type; /* holds object type or stripe idx when passing it to
+ * OST for saving into EA. */
+};
+
struct obd_uuid {
char uuid[40];
};
}
/* For printf's only, make sure uuid is terminated */
-static inline char *obd_uuid2str(struct obd_uuid *uuid)
+static inline char *obd_uuid2str(struct obd_uuid *uuid)
{
if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
/* Obviously not safe, but for printfs, no real harm done...
return (char *)(uuid->uuid);
}
+/* Extract fsname from uuid (or target name) of a target
+ e.g. (myfs-OST0007_UUID -> myfs)
+ see also deuuidify. */
+static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
+{
+ char *p;
+
+ strncpy(buf, uuid, buflen - 1);
+ buf[buflen - 1] = '\0';
+ p = strrchr(buf, '-');
+ if (p)
+ *p = '\0';
+}
+
+/**
+ * File IDentifier.
+ *
+ * FID is a cluster-wide unique identifier of a file or an object (stripe).
+ * FIDs are never reused.
+ */
+struct lu_fid {
+ /**
+ * FID sequence. Sequence is a unit of migration: all files (objects)
+ * with FIDs from a given sequence are stored on the same server.
+ * Lustre should support 2^64 objects, so even if each sequence
+ * has only a single object we can still enumerate 2^64 objects.
+ */
+ __u64 f_seq;
+ /** FID number within sequence. */
+ __u32 f_oid;
+ /**
+ * FID version, used to distinguish different versions (in the sense
+ * of snapshots, etc.) of the same file system object. Not currently
+ * used.
+ */
+ __u32 f_ver;
+};
+
+struct filter_fid {
+ struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */
+ __u64 ff_objid;
+ __u64 ff_seq;
+};
+
+/* Userspace should treat lu_fid as opaque, and only use the following methods
+ to print or parse them. Other functions (e.g. compare, swab) could be moved
+ here from lustre_idl.h if needed. */
+typedef struct lu_fid lustre_fid;
+
+/* printf display format
+ e.g. printf("file FID is "DFID"\n", PFID(fid)); */
+#define DFID_NOBRACE LPX64":0x%x:0x%x"
+#define DFID "["DFID_NOBRACE"]"
+#define PFID(fid) \
+ (fid)->f_seq, \
+ (fid)->f_oid, \
+ (fid)->f_ver
+
+/* scanf input parse format -- strip '[' first.
+ e.g. sscanf(fidstr, SFID, RFID(&fid)); */
+/* #define SFID "0x"LPX64i":0x"LPSZX":0x"LPSZX""
+liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 4 has type 'unsigned int *'
+liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 5 has type 'unsigned int *'
+*/
+#define SFID "0x"LPX64i":0x%x:0x%x"
+#define RFID(fid) \
+ &((fid)->f_seq), \
+ &((fid)->f_oid), \
+ &((fid)->f_ver)
+
+
+/********* Quotas **********/
+
/* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
#define LUSTRE_Q_QUOTAON 0x800002 /* turn quotas on */
#define LUSTRE_Q_QUOTAOFF 0x800003 /* turn quotas off */
};
#ifdef NEED_QUOTA_DEFS
-#ifndef QUOTABLOCK_BITS
-#define QUOTABLOCK_BITS 10
-#endif
-
-#ifndef QUOTABLOCK_SIZE
-#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
-#endif
-
-#ifndef toqb
-#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
-#endif
-
#ifndef QIF_BLIMITS
#define QIF_BLIMITS 1
#define QIF_SPACE 2
struct obd_uuid obd_uuid;
};
+
+/********* Changelogs **********/
+/** Changelog record types */
+enum changelog_rec_type {
+ CL_MARK = 0,
+ CL_CREATE = 1, /* namespace */
+ CL_MKDIR = 2, /* namespace */
+ CL_HARDLINK = 3, /* namespace */
+ CL_SOFTLINK = 4, /* namespace */
+ CL_MKNOD = 5, /* namespace */
+ CL_UNLINK = 6, /* namespace */
+ CL_RMDIR = 7, /* namespace */
+ CL_RENAME = 8, /* namespace */
+ CL_EXT = 9, /* namespace extended record (2nd half of rename) */
+ CL_OPEN = 10, /* not currently used */
+ CL_CLOSE = 11, /* may be written to log only with mtime change */
+ CL_IOCTL = 12,
+ CL_TRUNC = 13,
+ CL_SETATTR = 14,
+ CL_XATTR = 15,
+ CL_HSM = 16, /* HSM specific events, see flags */
+ CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
+ CL_CTIME = 18,
+ CL_ATIME = 19,
+ CL_LAST
+};
+
+static inline const char *changelog_type2str(int type) {
+ static const char *changelog_str[] = {
+ "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
+ "RMDIR", "RNMFM", "RNMTO", "OPEN", "CLOSE", "IOCTL", "TRUNC",
+ "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME" };
+ if (type >= 0 && type < CL_LAST)
+ return changelog_str[type];
+ return NULL;
+}
+
+/* per-record flags */
+#define CLF_VERSION 0x1000
+#define CLF_FLAGMASK 0x0FFF
+/* Anything under the flagmask may be per-type (if desired) */
+/* Flags for unlink */
+#define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
+#define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
+ /* HSM cleaning needed */
+/* Flags for HSM */
+/* 12b used (from high weight to low weight):
+ * 2b for flags
+ * 3b for event
+ * 7b for error code
+ */
+#define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
+#define CLF_HSM_ERR_H 6
+#define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
+#define CLF_HSM_EVENT_H 9
+#define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
+#define CLF_HSM_FLAG_H 11
+#define CLF_HSM_SPARE_L 12 /* 4 spare bits */
+#define CLF_HSM_SPARE_H 15
+#define CLF_HSM_LAST 15
+
+#define CLF_GET_BITS(_b, _h, _l) \
+ _b &= (0xFFFF << (CLF_HSM_LAST - _h)); \
+ _b = _b >> (_l + CLF_HSM_LAST - _h)
+
+#define CLF_HSM_SUCCESS 0x00
+#define CLF_HSM_MAXERROR 0x7E
+#define CLF_HSM_ERROVERFLOW 0x7F
+
+#define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
+
+/* 3 bits field => 8 values allowed */
+enum hsm_event {
+ HE_ARCHIVE = 0,
+ HE_RESTORE = 1,
+ HE_CANCEL = 2,
+ HE_RELEASE = 3,
+ HE_REMOVE = 4,
+ HE_STATE = 5,
+ HE_SPARE1 = 6,
+ HE_SPARE2 = 7,
+};
+
+static inline enum hsm_event hsm_get_cl_event(__u16 flags)
+{
+ enum hsm_event he;
+
+ CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
+ he = flags;
+ return he;
+}
+
+static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
+{
+ *flags |= (he << CLF_HSM_EVENT_L);
+}
+
+static inline __u16 hsm_get_cl_flags(int flags)
+{
+ CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
+ return flags;
+}
+
+static inline void hsm_set_cl_flags(int *flags, int bits)
+{
+ *flags |= (bits << CLF_HSM_FLAG_L);
+}
+
+static inline int hsm_get_cl_error(int flags)
+{
+ CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
+ return flags;
+}
+
+static inline void hsm_set_cl_error(int *flags, int error)
+{
+ *flags |= (error << CLF_HSM_ERR_L);
+}
+
+#define CR_MAXSIZE (PATH_MAX + sizeof(struct changelog_rec))
+struct changelog_rec {
+ __u16 cr_namelen;
+ __u16 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */
+ __u32 cr_type; /**< \a changelog_rec_type */
+ __u64 cr_index; /**< changelog record number */
+ __u64 cr_prev; /**< last index for this target fid */
+ __u64 cr_time;
+ union {
+ lustre_fid cr_tfid; /**< target fid */
+ __u32 cr_markerflags; /**< CL_MARK flags */
+ };
+ lustre_fid cr_pfid; /**< parent fid */
+ char cr_name[0]; /**< last element */
+} __attribute__((packed));
+
+struct ioc_changelog {
+ __u64 icc_recno;
+ __u32 icc_mdtindex;
+ __u32 icc_id;
+ __u32 icc_flags;
+};
+
+enum changelog_message_type {
+ CL_RECORD = 10, /* message is a changelog_rec */
+ CL_EOF = 11, /* at end of current changelog */
+};
+
+/********* Misc **********/
+
#ifndef offsetof
# define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
#endif
-#define mdd_dot_lustre_name ".lustre"
+#define dot_lustre_name ".lustre"
+
+
+/********* HSM **********/
+
+/** HSM per-file state
+ * See HSM_FLAGS below.
+ */
+enum hsm_states {
+ HS_EXISTS = 0x00000001,
+ HS_DIRTY = 0x00000002,
+ HS_RELEASED = 0x00000004,
+ HS_ARCHIVED = 0x00000008,
+ HS_NORELEASE = 0x00000010,
+ HS_NOARCHIVE = 0x00000020,
+ HS_LOST = 0x00000040,
+};
+
+/* HSM user-setable flags. */
+#define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
+
+/* Other HSM flags. */
+#define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
+
+/*
+ * All HSM-related possible flags that could be applied to a file.
+ * This should be kept in sync with hsm_states.
+ */
+#define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
+
+/**
+ * HSMÂ request progress state
+ */
+enum hsm_progress_states {
+ HPS_WAITING = 1,
+ HPS_RUNNING = 2,
+ HPS_DONE = 3,
+};
+#define HPS_NONE 0
+
+static inline char *hsm_progress_state2name(enum hsm_progress_states s)
+{
+ switch (s) {
+ case HPS_WAITING: return "waiting";
+ case HPS_RUNNING: return "running";
+ case HPS_DONE: return "done";
+ default: return "unknown";
+ }
+}
+
+struct hsm_extent {
+ __u64 offset;
+ __u64 length;
+} __attribute__((packed));
+
+/**
+ * Current HSM states of a Lustre file.
+ *
+ * This structure purpose is to be sent to user-space mainly. It describes the
+ * current HSM flags and in-progress action.
+ */
+struct hsm_user_state {
+ /** Current HSM states, from enum hsm_states. */
+ __u32 hus_states;
+ __u32 hus_archive_num;
+ /** The current undergoing action, if there is one */
+ __u32 hus_in_progress_state;
+ __u32 hus_in_progress_action;
+ struct hsm_extent hus_in_progress_location;
+ char hus_extended_info[];
+};
+
+struct hsm_state_set_ioc {
+ struct lu_fid hssi_fid;
+ __u64 hssi_setmask;
+ __u64 hssi_clearmask;
+};
+
+/***** HSM user requests ******/
+/* User-generated (lfs/ioctl) request types */
+enum hsm_user_action {
+ HUA_NONE = 1, /* no action (noop) */
+ HUA_ARCHIVE = 10, /* copy to hsm */
+ HUA_RESTORE = 11, /* prestage */
+ HUA_RELEASE = 12, /* drop ost objects */
+ HUA_REMOVE = 13, /* remove from archive */
+ HUA_CANCEL = 14 /* cancel a request */
+};
+
+static inline char *hsm_user_action2name(enum hsm_user_action a)
+{
+ switch (a) {
+ case HUA_NONE: return "NOOP";
+ case HUA_ARCHIVE: return "ARCHIVE";
+ case HUA_RESTORE: return "RESTORE";
+ case HUA_RELEASE: return "RELEASE";
+ case HUA_REMOVE: return "REMOVE";
+ case HUA_CANCEL: return "CANCEL";
+ default: return "UNKNOWN";
+ }
+}
+
+struct hsm_user_item {
+ lustre_fid hui_fid;
+ struct hsm_extent hui_extent;
+} __attribute__((packed));
+
+struct hsm_user_request {
+ __u32 hur_action; /* enum hsm_user_action */
+ __u32 hur_archive_num; /* archive number, used only with HUA_ARCHIVE */
+ __u32 hur_itemcount;
+ __u32 hur_data_len;
+ struct hsm_user_item hur_user_item[0];
+ /* extra data blob at end of struct (after all
+ * hur_user_items), only use helpers to access it
+ */
+} __attribute__((packed));
+
+/** Return pointer to data field in a hsm user request */
+static inline void *hur_data(struct hsm_user_request *hur)
+{
+ return &(hur->hur_user_item[hur->hur_itemcount]);
+}
+
+/** Compute the current length of the provided hsm_user_request. */
+static inline int hur_len(struct hsm_user_request *hur)
+{
+ int data_offset;
+
+ data_offset = hur_data(hur) - (void *)hur;
+ return (data_offset + hur->hur_data_len);
+}
+
+/****** HSM RPCs to copytool *****/
+/* Message types the copytool may receive */
+enum hsm_message_type {
+ HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
+};
+
+/* Actions the copytool may be instructed to take for a given action_item */
+enum hsm_copytool_action {
+ HSMA_NONE = 10, /* no action */
+ HSMA_ARCHIVE = 20, /* arbitrary offset */
+ HSMA_RESTORE = 21,
+ HSMA_REMOVE = 22,
+ HSMA_CANCEL = 23
+};
+
+static inline char *hsm_copytool_action2name(enum hsm_copytool_action a)
+{
+ switch (a) {
+ case HSMA_NONE: return "NOOP";
+ case HSMA_ARCHIVE: return "ARCHIVE";
+ case HSMA_RESTORE: return "RESTORE";
+ case HSMA_REMOVE: return "REMOVE";
+ case HSMA_CANCEL: return "CANCEL";
+ default: return "UNKNOWN";
+ }
+}
+
+/* Copytool item action description */
+struct hsm_action_item {
+ __u32 hai_len; /* valid size of this struct */
+ __u32 hai_action; /* hsm_copytool_action, but use known size */
+ lustre_fid hai_fid; /* Lustre FID to operated on */
+ struct hsm_extent hai_extent; /* byte range to operate on */
+ __u64 hai_cookie; /* action cookie from coordinator */
+ __u64 hai_gid; /* grouplock id */
+ char hai_data[0]; /* variable length */
+} __attribute__((packed));
+
+/*
+ * helper function which print in hexa the first bytes of
+ * hai opaque field
+ * \param hai [IN] record to print
+ * \param buffer [OUT] output buffer
+ * \param len [IN] max buffer len
+ * \retval buffer
+ */
+static inline char *hai_dump_data_field(struct hsm_action_item *hai,
+ char *buffer, int len)
+{
+ int i, sz, data_len;
+ char *ptr;
+
+ LASSERT(len > 0);
+
+ ptr = buffer;
+ sz = len;
+ data_len = hai->hai_len - sizeof(*hai);
+ for (i = 0 ; (i < data_len) && (sz > 0) ; i++)
+ {
+ int cnt;
+
+ cnt = snprintf(ptr, sz, "%.2X",
+ (unsigned char)hai->hai_data[i]);
+ ptr += cnt;
+ sz -= cnt;
+ }
+ *ptr = '\0';
+ return buffer;
+}
+
+/* Copytool action list */
+#define HAL_VERSION 1
+#define HAL_MAXSIZE 4096 /* bytes, used in userspace only */
+struct hsm_action_list {
+ __u32 hal_version;
+ __u32 hal_count; /* number of hai's to follow */
+ __u64 hal_compound_id; /* returned by coordinator */
+ __u32 hal_archive_num; /* which archive backend */
+ __u32 padding1;
+ char hal_fsname[0]; /* null-terminated */
+ /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
+ boundaries. See hai_zero */
+} __attribute__((packed));
+
+#ifndef HAVE_CFS_SIZE_ROUND
+static inline int cfs_size_round (int val)
+{
+ return (val + 7) & (~0x7);
+}
+#define HAVE_CFS_SIZE_ROUND
+#endif
+
+/* Return pointer to first hai in action list */
+static inline struct hsm_action_item * hai_zero(struct hsm_action_list *hal)
+{
+ return (struct hsm_action_item *)(hal->hal_fsname +
+ cfs_size_round(strlen(hal-> \
+ hal_fsname)));
+}
+/* Return pointer to next hai */
+static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
+{
+ return (struct hsm_action_item *)((char *)hai +
+ cfs_size_round(hai->hai_len));
+}
+
+/* Return size of an hsm_action_list */
+static inline int hal_size(struct hsm_action_list *hal)
+{
+ int i, sz;
+ struct hsm_action_item *hai;
+
+ LASSERT(hal->hal_version == HAL_VERSION);
+ sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname));
+ hai = hai_zero(hal);
+ for (i = 0 ; i < hal->hal_count ; i++) {
+ sz += cfs_size_round(hai->hai_len);
+ hai = hai_next(hai);
+ }
+ return(sz);
+}
+
+/* Copytool progress reporting */
+#define HP_FLAG_COMPLETED 0x01
+#define HP_FLAG_RETRY 0x02
+
+struct hsm_progress {
+ lustre_fid hp_fid;
+ __u64 hp_cookie;
+ struct hsm_extent hp_extent;
+ __u16 hp_flags;
+ __u16 hp_errval; /* positive val */
+} __attribute__((packed));
+
+/** @} lustreuser */
#endif /* _LUSTRE_USER_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff