--- /dev/null
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/include/lustre/lustre_idl.h
+ *
+ * Lustre wire protocol definitions.
+ */
+
+/** \defgroup lustreidl lustreidl
+ *
+ * Lustre wire protocol definitions.
+ *
+ * ALL structs passing over the wire should be declared here. Structs
+ * that are used in interfaces with userspace should go in lustre_user.h.
+ *
+ * All structs being declared here should be built from simple fixed-size
+ * types (__u8, __u16, __u32, __u64) or be built from other types or
+ * structs also declared in this file. Similarly, all flags and magic
+ * values in those structs should also be declared here. This ensures
+ * that the Lustre wire protocol is not influenced by external dependencies.
+ *
+ * The only other acceptable items in this file are VERY SIMPLE accessor
+ * functions to avoid callers grubbing inside the structures, and the
+ * prototypes of the swabber functions for each struct. Nothing that
+ * depends on external functions or definitions should be in here.
+ *
+ * Structs must be properly aligned to put 64-bit values on an 8-byte
+ * boundary. Any structs being added here must also be added to
+ * utils/wirecheck.c and "make newwiretest" run to regenerate the
+ * utils/wiretest.c sources. This allows us to verify that wire structs
+ * have the proper alignment/size on all architectures.
+ *
+ * DO NOT CHANGE any of the structs, flags, values declared here and used
+ * in released Lustre versions. Some structs may have padding fields that
+ * can be used. Some structs might allow addition at the end (verify this
+ * in the code to ensure that new/old clients that see this larger struct
+ * do not fail, otherwise you need to implement protocol compatibility).
+ *
+ * We assume all nodes are either little-endian or big-endian, and we
+ * always send messages in the sender's native format. The receiver
+ * detects the message format by checking the 'magic' field of the message
+ * (see lustre_msg_swabbed() below).
+ *
+ * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines,
+ * implemented either here, inline (trivial implementations) or in
+ * ptlrpc/pack_generic.c. These 'swabbers' convert the type from "other"
+ * endian, in-place in the message buffer.
+ *
+ * A swabber takes a single pointer argument. The caller must already have
+ * verified that the length of the message buffer >= sizeof (type).
+ *
+ * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine
+ * may be defined that swabs just the variable part, after the caller has
+ * verified that the message buffer is large enough.
+ *
+ * @{
+ */
+
+#ifndef _LUSTRE_IDL_H_
+#define _LUSTRE_IDL_H_
+
+#include "../../../include/linux/libcfs/libcfs.h"
+
+/* Defn's shared with user-space. */
+#include "lustre_user.h"
+#include "lustre_errno.h"
+
+/*
+ * GENERAL STUFF
+ */
+/* FOO_REQUEST_PORTAL is for incoming requests on the FOO
+ * FOO_REPLY_PORTAL is for incoming replies on the FOO
+ * FOO_BULK_PORTAL is for incoming bulk on the FOO
+ */
+
+/* Lustre service names are following the format
+ * service name + MDT + seq name
+ */
+#define LUSTRE_MDT_MAXNAMELEN 80
+
+#define CONNMGR_REQUEST_PORTAL 1
+#define CONNMGR_REPLY_PORTAL 2
+//#define OSC_REQUEST_PORTAL 3
+#define OSC_REPLY_PORTAL 4
+//#define OSC_BULK_PORTAL 5
+#define OST_IO_PORTAL 6
+#define OST_CREATE_PORTAL 7
+#define OST_BULK_PORTAL 8
+//#define MDC_REQUEST_PORTAL 9
+#define MDC_REPLY_PORTAL 10
+//#define MDC_BULK_PORTAL 11
+#define MDS_REQUEST_PORTAL 12
+//#define MDS_REPLY_PORTAL 13
+#define MDS_BULK_PORTAL 14
+#define LDLM_CB_REQUEST_PORTAL 15
+#define LDLM_CB_REPLY_PORTAL 16
+#define LDLM_CANCEL_REQUEST_PORTAL 17
+#define LDLM_CANCEL_REPLY_PORTAL 18
+//#define PTLBD_REQUEST_PORTAL 19
+//#define PTLBD_REPLY_PORTAL 20
+//#define PTLBD_BULK_PORTAL 21
+#define MDS_SETATTR_PORTAL 22
+#define MDS_READPAGE_PORTAL 23
+#define OUT_PORTAL 24
+
+#define MGC_REPLY_PORTAL 25
+#define MGS_REQUEST_PORTAL 26
+#define MGS_REPLY_PORTAL 27
+#define OST_REQUEST_PORTAL 28
+#define FLD_REQUEST_PORTAL 29
+#define SEQ_METADATA_PORTAL 30
+#define SEQ_DATA_PORTAL 31
+#define SEQ_CONTROLLER_PORTAL 32
+#define MGS_BULK_PORTAL 33
+
+/* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
+
+/* packet types */
+#define PTL_RPC_MSG_REQUEST 4711
+#define PTL_RPC_MSG_ERR 4712
+#define PTL_RPC_MSG_REPLY 4713
+
+/* DON'T use swabbed values of MAGIC as magic! */
+#define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0
+#define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
+
+#define LUSTRE_MSG_MAGIC_V1_SWABBED 0xD00BD00B
+#define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
+
+#define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
+
+#define PTLRPC_MSG_VERSION 0x00000003
+#define LUSTRE_VERSION_MASK 0xffff0000
+#define LUSTRE_OBD_VERSION 0x00010000
+#define LUSTRE_MDS_VERSION 0x00020000
+#define LUSTRE_OST_VERSION 0x00030000
+#define LUSTRE_DLM_VERSION 0x00040000
+#define LUSTRE_LOG_VERSION 0x00050000
+#define LUSTRE_MGS_VERSION 0x00060000
+
+/**
+ * Describes a range of sequence, lsr_start is included but lsr_end is
+ * not in the range.
+ * Same structure is used in fld module where lsr_index field holds mdt id
+ * of the home mdt.
+ */
+struct lu_seq_range {
+ __u64 lsr_start;
+ __u64 lsr_end;
+ __u32 lsr_index;
+ __u32 lsr_flags;
+};
+
+#define LU_SEQ_RANGE_MDT 0x0
+#define LU_SEQ_RANGE_OST 0x1
+#define LU_SEQ_RANGE_ANY 0x3
+
+#define LU_SEQ_RANGE_MASK 0x3
+
+static inline unsigned fld_range_type(const struct lu_seq_range *range)
+{
+ return range->lsr_flags & LU_SEQ_RANGE_MASK;
+}
+
+static inline int fld_range_is_ost(const struct lu_seq_range *range)
+{
+ return fld_range_type(range) == LU_SEQ_RANGE_OST;
+}
+
+static inline int fld_range_is_mdt(const struct lu_seq_range *range)
+{
+ return fld_range_type(range) == LU_SEQ_RANGE_MDT;
+}
+
+/**
+ * This all range is only being used when fld client sends fld query request,
+ * but it does not know whether the seq is MDT or OST, so it will send req
+ * with ALL type, which means either seq type gotten from lookup can be
+ * expected.
+ */
+static inline unsigned fld_range_is_any(const struct lu_seq_range *range)
+{
+ return fld_range_type(range) == LU_SEQ_RANGE_ANY;
+}
+
+static inline void fld_range_set_type(struct lu_seq_range *range,
+ unsigned flags)
+{
+ range->lsr_flags |= flags;
+}
+
+static inline void fld_range_set_mdt(struct lu_seq_range *range)
+{
+ fld_range_set_type(range, LU_SEQ_RANGE_MDT);
+}
+
+static inline void fld_range_set_ost(struct lu_seq_range *range)
+{
+ fld_range_set_type(range, LU_SEQ_RANGE_OST);
+}
+
+static inline void fld_range_set_any(struct lu_seq_range *range)
+{
+ fld_range_set_type(range, LU_SEQ_RANGE_ANY);
+}
+
+/**
+ * returns width of given range \a r
+ */
+
+static inline __u64 range_space(const struct lu_seq_range *range)
+{
+ return range->lsr_end - range->lsr_start;
+}
+
+/**
+ * initialize range to zero
+ */
+
+static inline void range_init(struct lu_seq_range *range)
+{
+ memset(range, 0, sizeof(*range));
+}
+
+/**
+ * check if given seq id \a s is within given range \a r
+ */
+
+static inline int range_within(const struct lu_seq_range *range,
+ __u64 s)
+{
+ return s >= range->lsr_start && s < range->lsr_end;
+}
+
+static inline int range_is_sane(const struct lu_seq_range *range)
+{
+ return (range->lsr_end >= range->lsr_start);
+}
+
+static inline int range_is_zero(const struct lu_seq_range *range)
+{
+ return (range->lsr_start == 0 && range->lsr_end == 0);
+}
+
+static inline int range_is_exhausted(const struct lu_seq_range *range)
+
+{
+ return range_space(range) == 0;
+}
+
+/* return 0 if two range have the same location */
+static inline int range_compare_loc(const struct lu_seq_range *r1,
+ const struct lu_seq_range *r2)
+{
+ return r1->lsr_index != r2->lsr_index ||
+ r1->lsr_flags != r2->lsr_flags;
+}
+
+#define DRANGE "[%#16.16Lx-%#16.16Lx):%x:%s"
+
+#define PRANGE(range) \
+ (range)->lsr_start, \
+ (range)->lsr_end, \
+ (range)->lsr_index, \
+ fld_range_is_mdt(range) ? "mdt" : "ost"
+
+
+/** \defgroup lu_fid lu_fid
+ * @{ */
+
+/**
+ * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
+ * Deprecated since HSM and SOM attributes are now stored in separate on-disk
+ * xattr.
+ */
+enum lma_compat {
+ LMAC_HSM = 0x00000001,
+ LMAC_SOM = 0x00000002,
+ LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
+ LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
+ * under /O/<seq>/d<x>. */
+};
+
+/**
+ * Masks for all features that should be supported by a Lustre version to
+ * access a specific file.
+ * This information is stored in lustre_mdt_attrs::lma_incompat.
+ */
+enum lma_incompat {
+ LMAI_RELEASED = 0x00000001, /* file is released */
+ LMAI_AGENT = 0x00000002, /* agent inode */
+ LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
+ is on the remote MDT */
+};
+#define LMA_INCOMPAT_SUPP (LMAI_AGENT | LMAI_REMOTE_PARENT)
+
+/**
+ * fid constants
+ */
+enum {
+ /** LASTID file has zero OID */
+ LUSTRE_FID_LASTID_OID = 0UL,
+ /** initial fid id value */
+ LUSTRE_FID_INIT_OID = 1UL
+};
+
+/** returns fid object sequence */
+static inline __u64 fid_seq(const struct lu_fid *fid)
+{
+ return fid->f_seq;
+}
+
+/** returns fid object id */
+static inline __u32 fid_oid(const struct lu_fid *fid)
+{
+ return fid->f_oid;
+}
+
+/** returns fid object version */
+static inline __u32 fid_ver(const struct lu_fid *fid)
+{
+ return fid->f_ver;
+}
+
+static inline void fid_zero(struct lu_fid *fid)
+{
+ memset(fid, 0, sizeof(*fid));
+}
+
+static inline __u64 fid_ver_oid(const struct lu_fid *fid)
+{
+ return ((__u64)fid_ver(fid) << 32 | fid_oid(fid));
+}
+
+/**
+ * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
+ * inodes in the IGIF namespace, so these reserved SEQ numbers can be
+ * used for other purposes and not risk collisions with existing inodes.
+ *
+ * Different FID Format
+ * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
+ */
+enum fid_seq {
+ FID_SEQ_OST_MDT0 = 0,
+ FID_SEQ_LLOG = 1, /* unnamed llogs */
+ FID_SEQ_ECHO = 2,
+ FID_SEQ_OST_MDT1 = 3,
+ FID_SEQ_OST_MAX = 9, /* Max MDT count before OST_on_FID */
+ FID_SEQ_LLOG_NAME = 10, /* named llogs */
+ FID_SEQ_RSVD = 11,
+ FID_SEQ_IGIF = 12,
+ FID_SEQ_IGIF_MAX = 0x0ffffffffULL,
+ FID_SEQ_IDIF = 0x100000000ULL,
+ FID_SEQ_IDIF_MAX = 0x1ffffffffULL,
+ /* Normal FID sequence starts from this value, i.e. 1<<33 */
+ FID_SEQ_START = 0x200000000ULL,
+ /* sequence for local pre-defined FIDs listed in local_oid */
+ FID_SEQ_LOCAL_FILE = 0x200000001ULL,
+ FID_SEQ_DOT_LUSTRE = 0x200000002ULL,
+ /* sequence is used for local named objects FIDs generated
+ * by local_object_storage library */
+ FID_SEQ_LOCAL_NAME = 0x200000003ULL,
+ /* Because current FLD will only cache the fid sequence, instead
+ * of oid on the client side, if the FID needs to be exposed to
+ * clients sides, it needs to make sure all of fids under one
+ * sequence will be located in one MDT. */
+ FID_SEQ_SPECIAL = 0x200000004ULL,
+ FID_SEQ_QUOTA = 0x200000005ULL,
+ FID_SEQ_QUOTA_GLB = 0x200000006ULL,
+ FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */
+ FID_SEQ_NORMAL = 0x200000400ULL,
+ FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
+};
+
+#define OBIF_OID_MAX_BITS 32
+#define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
+#define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
+#define IDIF_OID_MAX_BITS 48
+#define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
+#define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
+
+/** OID for FID_SEQ_SPECIAL */
+enum special_oid {
+ /* Big Filesystem Lock to serialize rename operations */
+ FID_OID_SPECIAL_BFL = 1UL,
+};
+
+/** OID for FID_SEQ_DOT_LUSTRE */
+enum dot_lustre_oid {
+ FID_OID_DOT_LUSTRE = 1UL,
+ FID_OID_DOT_LUSTRE_OBF = 2UL,
+};
+
+static inline int fid_seq_is_mdt0(__u64 seq)
+{
+ return (seq == FID_SEQ_OST_MDT0);
+}
+
+static inline int fid_seq_is_mdt(const __u64 seq)
+{
+ return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
+};
+
+static inline int fid_seq_is_echo(__u64 seq)
+{
+ return (seq == FID_SEQ_ECHO);
+}
+
+static inline int fid_is_echo(const struct lu_fid *fid)
+{
+ return fid_seq_is_echo(fid_seq(fid));
+}
+
+static inline int fid_seq_is_llog(__u64 seq)
+{
+ return (seq == FID_SEQ_LLOG);
+}
+
+static inline int fid_is_llog(const struct lu_fid *fid)
+{
+ /* file with OID == 0 is not llog but contains last oid */
+ return fid_seq_is_llog(fid_seq(fid)) && fid_oid(fid) > 0;
+}
+
+static inline int fid_seq_is_rsvd(const __u64 seq)
+{
+ return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD);
+};
+
+static inline int fid_seq_is_special(const __u64 seq)
+{
+ return seq == FID_SEQ_SPECIAL;
+};
+
+static inline int fid_seq_is_local_file(const __u64 seq)
+{
+ return seq == FID_SEQ_LOCAL_FILE ||
+ seq == FID_SEQ_LOCAL_NAME;
+};
+
+static inline int fid_seq_is_root(const __u64 seq)
+{
+ return seq == FID_SEQ_ROOT;
+}
+
+static inline int fid_seq_is_dot(const __u64 seq)
+{
+ return seq == FID_SEQ_DOT_LUSTRE;
+}
+
+static inline int fid_seq_is_default(const __u64 seq)
+{
+ return seq == FID_SEQ_LOV_DEFAULT;
+}
+
+static inline int fid_is_mdt0(const struct lu_fid *fid)
+{
+ return fid_seq_is_mdt0(fid_seq(fid));
+}
+
+static inline void lu_root_fid(struct lu_fid *fid)
+{
+ fid->f_seq = FID_SEQ_ROOT;
+ fid->f_oid = 1;
+ fid->f_ver = 0;
+}
+
+/**
+ * Check if a fid is igif or not.
+ * \param fid the fid to be tested.
+ * \return true if the fid is a igif; otherwise false.
+ */
+static inline int fid_seq_is_igif(const __u64 seq)
+{
+ return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
+}
+
+static inline int fid_is_igif(const struct lu_fid *fid)
+{
+ return fid_seq_is_igif(fid_seq(fid));
+}
+
+/**
+ * Check if a fid is idif or not.
+ * \param fid the fid to be tested.
+ * \return true if the fid is a idif; otherwise false.
+ */
+static inline int fid_seq_is_idif(const __u64 seq)
+{
+ return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
+}
+
+static inline int fid_is_idif(const struct lu_fid *fid)
+{
+ return fid_seq_is_idif(fid_seq(fid));
+}
+
+static inline int fid_is_local_file(const struct lu_fid *fid)
+{
+ return fid_seq_is_local_file(fid_seq(fid));
+}
+
+static inline int fid_seq_is_norm(const __u64 seq)
+{
+ return (seq >= FID_SEQ_NORMAL);
+}
+
+static inline int fid_is_norm(const struct lu_fid *fid)
+{
+ return fid_seq_is_norm(fid_seq(fid));
+}
+
+/* convert an OST objid into an IDIF FID SEQ number */
+static inline __u64 fid_idif_seq(__u64 id, __u32 ost_idx)
+{
+ return FID_SEQ_IDIF | (ost_idx << 16) | ((id >> 32) & 0xffff);
+}
+
+/* convert a packed IDIF FID into an OST objid */
+static inline __u64 fid_idif_id(__u64 seq, __u32 oid, __u32 ver)
+{
+ return ((__u64)ver << 48) | ((seq & 0xffff) << 32) | oid;
+}
+
+/* extract ost index from IDIF FID */
+static inline __u32 fid_idif_ost_idx(const struct lu_fid *fid)
+{
+ return (fid_seq(fid) >> 16) & 0xffff;
+}
+
+/* extract OST sequence (group) from a wire ost_id (id/seq) pair */
+static inline __u64 ostid_seq(const struct ost_id *ostid)
+{
+ if (fid_seq_is_mdt0(ostid->oi.oi_seq))
+ return FID_SEQ_OST_MDT0;
+
+ if (fid_seq_is_default(ostid->oi.oi_seq))
+ return FID_SEQ_LOV_DEFAULT;
+
+ if (fid_is_idif(&ostid->oi_fid))
+ return FID_SEQ_OST_MDT0;
+
+ return fid_seq(&ostid->oi_fid);
+}
+
+/* extract OST objid from a wire ost_id (id/seq) pair */
+static inline __u64 ostid_id(const struct ost_id *ostid)
+{
+ if (fid_seq_is_mdt0(ostid_seq(ostid)))
+ return ostid->oi.oi_id & IDIF_OID_MASK;
+
+ if (fid_is_idif(&ostid->oi_fid))
+ return fid_idif_id(fid_seq(&ostid->oi_fid),
+ fid_oid(&ostid->oi_fid), 0);
+
+ return fid_oid(&ostid->oi_fid);
+}
+
+static inline void ostid_set_seq(struct ost_id *oi, __u64 seq)
+{
+ if (fid_seq_is_mdt0(seq) || fid_seq_is_default(seq)) {
+ oi->oi.oi_seq = seq;
+ } else {
+ oi->oi_fid.f_seq = seq;
+ /* Note: if f_oid + f_ver is zero, we need init it
+ * to be 1, otherwise, ostid_seq will treat this
+ * as old ostid (oi_seq == 0) */
+ if (oi->oi_fid.f_oid == 0 && oi->oi_fid.f_ver == 0)
+ oi->oi_fid.f_oid = LUSTRE_FID_INIT_OID;
+ }
+}
+
+static inline void ostid_set_seq_mdt0(struct ost_id *oi)
+{
+ ostid_set_seq(oi, FID_SEQ_OST_MDT0);
+}
+
+static inline void ostid_set_seq_echo(struct ost_id *oi)
+{
+ ostid_set_seq(oi, FID_SEQ_ECHO);
+}
+
+static inline void ostid_set_seq_llog(struct ost_id *oi)
+{
+ ostid_set_seq(oi, FID_SEQ_LLOG);
+}
+
+/**
+ * Note: we need check oi_seq to decide where to set oi_id,
+ * so oi_seq should always be set ahead of oi_id.
+ */
+static inline void ostid_set_id(struct ost_id *oi, __u64 oid)
+{
+ if (fid_seq_is_mdt0(ostid_seq(oi))) {
+ if (oid >= IDIF_MAX_OID) {
+ CERROR("Bad %llu to set "DOSTID"\n",
+ oid, POSTID(oi));
+ return;
+ }
+ oi->oi.oi_id = oid;
+ } else {
+ if (oid > OBIF_MAX_OID) {
+ CERROR("Bad %llu to set "DOSTID"\n",
+ oid, POSTID(oi));
+ return;
+ }
+ oi->oi_fid.f_oid = oid;
+ }
+}
+
+static inline void ostid_inc_id(struct ost_id *oi)
+{
+ if (fid_seq_is_mdt0(ostid_seq(oi))) {
+ if (unlikely(ostid_id(oi) + 1 > IDIF_MAX_OID)) {
+ CERROR("Bad inc "DOSTID"\n", POSTID(oi));
+ return;
+ }
+ oi->oi.oi_id++;
+ } else {
+ oi->oi_fid.f_oid++;
+ }
+}
+
+static inline void ostid_dec_id(struct ost_id *oi)
+{
+ if (fid_seq_is_mdt0(ostid_seq(oi)))
+ oi->oi.oi_id--;
+ else
+ oi->oi_fid.f_oid--;
+}
+
+/**
+ * Unpack an OST object id/seq (group) into a FID. This is needed for
+ * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper
+ * FIDs. Note that if an id/seq is already in FID/IDIF format it will
+ * be passed through unchanged. Only legacy OST objects in "group 0"
+ * will be mapped into the IDIF namespace so that they can fit into the
+ * struct lu_fid fields without loss. For reference see:
+ * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs
+ */
+static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid,
+ __u32 ost_idx)
+{
+ if (ost_idx > 0xffff) {
+ CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid),
+ ost_idx);
+ return -EBADF;
+ }
+
+ if (fid_seq_is_mdt0(ostid_seq(ostid))) {
+ /* This is a "legacy" (old 1.x/2.early) OST object in "group 0"
+ * that we map into the IDIF namespace. It allows up to 2^48
+ * objects per OST, as this is the object namespace that has
+ * been in production for years. This can handle create rates
+ * of 1M objects/s/OST for 9 years, or combinations thereof. */
+ if (ostid_id(ostid) >= IDIF_MAX_OID) {
+ CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
+ POSTID(ostid), ost_idx);
+ return -EBADF;
+ }
+ fid->f_seq = fid_idif_seq(ostid_id(ostid), ost_idx);
+ /* truncate to 32 bits by assignment */
+ fid->f_oid = ostid_id(ostid);
+ /* in theory, not currently used */
+ fid->f_ver = ostid_id(ostid) >> 48;
+ } else /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ {
+ /* This is either an IDIF object, which identifies objects across
+ * all OSTs, or a regular FID. The IDIF namespace maps legacy
+ * OST objects into the FID namespace. In both cases, we just
+ * pass the FID through, no conversion needed. */
+ if (ostid->oi_fid.f_ver != 0) {
+ CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
+ POSTID(ostid), ost_idx);
+ return -EBADF;
+ }
+ *fid = ostid->oi_fid;
+ }
+
+ return 0;
+}
+
+/* pack any OST FID into an ostid (id/seq) for the wire/disk */
+static inline int fid_to_ostid(const struct lu_fid *fid, struct ost_id *ostid)
+{
+ if (unlikely(fid_seq_is_igif(fid->f_seq))) {
+ CERROR("bad IGIF, "DFID"\n", PFID(fid));
+ return -EBADF;
+ }
+
+ if (fid_is_idif(fid)) {
+ ostid_set_seq_mdt0(ostid);
+ ostid_set_id(ostid, fid_idif_id(fid_seq(fid), fid_oid(fid),
+ fid_ver(fid)));
+ } else {
+ ostid->oi_fid = *fid;
+ }
+
+ return 0;
+}
+
+/* Check whether the fid is for LAST_ID */
+static inline int fid_is_last_id(const struct lu_fid *fid)
+{
+ return (fid_oid(fid) == 0);
+}
+
+/**
+ * Get inode number from a igif.
+ * \param fid a igif to get inode number from.
+ * \return inode number for the igif.
+ */
+static inline ino_t lu_igif_ino(const struct lu_fid *fid)
+{
+ return fid_seq(fid);
+}
+
+extern void lustre_swab_ost_id(struct ost_id *oid);
+
+/**
+ * Get inode generation from a igif.
+ * \param fid a igif to get inode generation from.
+ * \return inode generation for the igif.
+ */
+static inline __u32 lu_igif_gen(const struct lu_fid *fid)
+{
+ return fid_oid(fid);
+}
+
+/**
+ * Build igif from the inode number/generation.
+ */
+static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
+{
+ fid->f_seq = ino;
+ fid->f_oid = gen;
+ fid->f_ver = 0;
+}
+
+/*
+ * Fids are transmitted across network (in the sender byte-ordering),
+ * and stored on disk in big-endian order.
+ */
+static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
+{
+ dst->f_seq = cpu_to_le64(fid_seq(src));
+ dst->f_oid = cpu_to_le32(fid_oid(src));
+ dst->f_ver = cpu_to_le32(fid_ver(src));
+}
+
+static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
+{
+ dst->f_seq = le64_to_cpu(fid_seq(src));
+ dst->f_oid = le32_to_cpu(fid_oid(src));
+ dst->f_ver = le32_to_cpu(fid_ver(src));
+}
+
+static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
+{
+ dst->f_seq = cpu_to_be64(fid_seq(src));
+ dst->f_oid = cpu_to_be32(fid_oid(src));
+ dst->f_ver = cpu_to_be32(fid_ver(src));
+}
+
+static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
+{
+ dst->f_seq = be64_to_cpu(fid_seq(src));
+ dst->f_oid = be32_to_cpu(fid_oid(src));
+ dst->f_ver = be32_to_cpu(fid_ver(src));
+}
+
+static inline int fid_is_sane(const struct lu_fid *fid)
+{
+ return fid != NULL &&
+ ((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
+ fid_is_igif(fid) || fid_is_idif(fid) ||
+ fid_seq_is_rsvd(fid_seq(fid)));
+}
+
+static inline int fid_is_zero(const struct lu_fid *fid)
+{
+ return fid_seq(fid) == 0 && fid_oid(fid) == 0;
+}
+
+extern void lustre_swab_lu_fid(struct lu_fid *fid);
+extern void lustre_swab_lu_seq_range(struct lu_seq_range *range);
+
+static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
+{
+ return memcmp(f0, f1, sizeof(*f0)) == 0;
+}
+
+#define __diff_normalize(val0, val1) \
+({ \
+ typeof(val0) __val0 = (val0); \
+ typeof(val1) __val1 = (val1); \
+ \
+ (__val0 == __val1 ? 0 : __val0 > __val1 ? +1 : -1); \
+})
+
+static inline int lu_fid_cmp(const struct lu_fid *f0,
+ const struct lu_fid *f1)
+{
+ return
+ __diff_normalize(fid_seq(f0), fid_seq(f1)) ?:
+ __diff_normalize(fid_oid(f0), fid_oid(f1)) ?:
+ __diff_normalize(fid_ver(f0), fid_ver(f1));
+}
+
+static inline void ostid_cpu_to_le(const struct ost_id *src_oi,
+ struct ost_id *dst_oi)
+{
+ if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
+ dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
+ dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
+ } else {
+ fid_cpu_to_le(&dst_oi->oi_fid, &src_oi->oi_fid);
+ }
+}
+
+static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
+ struct ost_id *dst_oi)
+{
+ if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
+ dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
+ dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
+ } else {
+ fid_le_to_cpu(&dst_oi->oi_fid, &src_oi->oi_fid);
+ }
+}
+
+/** @} lu_fid */
+
+/** \defgroup lu_dir lu_dir
+ * @{ */
+
+/**
+ * Enumeration of possible directory entry attributes.
+ *
+ * Attributes follow directory entry header in the order they appear in this
+ * enumeration.
+ */
+enum lu_dirent_attrs {
+ LUDA_FID = 0x0001,
+ LUDA_TYPE = 0x0002,
+ LUDA_64BITHASH = 0x0004,
+
+ /* The following attrs are used for MDT internal only,
+ * not visible to client */
+
+ /* Verify the dirent consistency */
+ LUDA_VERIFY = 0x8000,
+ /* Only check but not repair the dirent inconsistency */
+ LUDA_VERIFY_DRYRUN = 0x4000,
+ /* The dirent has been repaired, or to be repaired (dryrun). */
+ LUDA_REPAIR = 0x2000,
+ /* The system is upgraded, has beed or to be repaired (dryrun). */
+ LUDA_UPGRADE = 0x1000,
+ /* Ignore this record, go to next directly. */
+ LUDA_IGNORE = 0x0800,
+};
+
+#define LU_DIRENT_ATTRS_MASK 0xf800
+
+/**
+ * Layout of readdir pages, as transmitted on wire.
+ */
+struct lu_dirent {
+ /** valid if LUDA_FID is set. */
+ struct lu_fid lde_fid;
+ /** a unique entry identifier: a hash or an offset. */
+ __u64 lde_hash;
+ /** total record length, including all attributes. */
+ __u16 lde_reclen;
+ /** name length */
+ __u16 lde_namelen;
+ /** optional variable size attributes following this entry.
+ * taken from enum lu_dirent_attrs.
+ */
+ __u32 lde_attrs;
+ /** name is followed by the attributes indicated in ->ldp_attrs, in
+ * their natural order. After the last attribute, padding bytes are
+ * added to make ->lde_reclen a multiple of 8.
+ */
+ char lde_name[0];
+};
+
+/*
+ * Definitions of optional directory entry attributes formats.
+ *
+ * Individual attributes do not have their length encoded in a generic way. It
+ * is assumed that consumer of an attribute knows its format. This means that
+ * it is impossible to skip over an unknown attribute, except by skipping over all
+ * remaining attributes (by using ->lde_reclen), which is not too
+ * constraining, because new server versions will append new attributes at
+ * the end of an entry.
+ */
+
+/**
+ * Fid directory attribute: a fid of an object referenced by the entry. This
+ * will be almost always requested by the client and supplied by the server.
+ *
+ * Aligned to 8 bytes.
+ */
+/* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
+
+/**
+ * File type.
+ *
+ * Aligned to 2 bytes.
+ */
+struct luda_type {
+ __u16 lt_type;
+};
+
+#ifndef IFSHIFT
+#define IFSHIFT 12
+#endif
+
+#ifndef IFTODT
+#define IFTODT(type) (((type) & S_IFMT) >> IFSHIFT)
+#endif
+#ifndef DTTOIF
+#define DTTOIF(dirtype) ((dirtype) << IFSHIFT)
+#endif
+
+
+struct lu_dirpage {
+ __u64 ldp_hash_start;
+ __u64 ldp_hash_end;
+ __u32 ldp_flags;
+ __u32 ldp_pad0;
+ struct lu_dirent ldp_entries[0];
+};
+
+enum lu_dirpage_flags {
+ /**
+ * dirpage contains no entry.
+ */
+ LDF_EMPTY = 1 << 0,
+ /**
+ * last entry's lde_hash equals ldp_hash_end.
+ */
+ LDF_COLLIDE = 1 << 1
+};
+
+static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
+{
+ if (le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
+ return NULL;
+ else
+ return dp->ldp_entries;
+}
+
+static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
+{
+ struct lu_dirent *next;
+
+ if (le16_to_cpu(ent->lde_reclen) != 0)
+ next = ((void *)ent) + le16_to_cpu(ent->lde_reclen);
+ else
+ next = NULL;
+
+ return next;
+}
+
+static inline int lu_dirent_calc_size(int namelen, __u16 attr)
+{
+ int size;
+
+ if (attr & LUDA_TYPE) {
+ const unsigned align = sizeof(struct luda_type) - 1;
+ size = (sizeof(struct lu_dirent) + namelen + align) & ~align;
+ size += sizeof(struct luda_type);
+ } else
+ size = sizeof(struct lu_dirent) + namelen;
+
+ return (size + 7) & ~7;
+}
+
+static inline int lu_dirent_size(struct lu_dirent *ent)
+{
+ if (le16_to_cpu(ent->lde_reclen) == 0) {
+ return lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen),
+ le32_to_cpu(ent->lde_attrs));
+ }
+ return le16_to_cpu(ent->lde_reclen);
+}
+
+#define MDS_DIR_END_OFF 0xfffffffffffffffeULL
+
+/**
+ * MDS_READPAGE page size
+ *
+ * This is the directory page size packed in MDS_READPAGE RPC.
+ * It's different than PAGE_CACHE_SIZE because the client needs to
+ * access the struct lu_dirpage header packed at the beginning of
+ * the "page" and without this there isn't any way to know find the
+ * lu_dirpage header is if client and server PAGE_CACHE_SIZE differ.
+ */
+#define LU_PAGE_SHIFT 12
+#define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
+#define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
+
+#define LU_PAGE_COUNT (1 << (PAGE_CACHE_SHIFT - LU_PAGE_SHIFT))
+
+/** @} lu_dir */
+
+struct lustre_handle {
+ __u64 cookie;
+};
+#define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
+
+static inline int lustre_handle_is_used(struct lustre_handle *lh)
+{
+ return lh->cookie != 0ull;
+}
+
+static inline int lustre_handle_equal(const struct lustre_handle *lh1,
+ const struct lustre_handle *lh2)
+{
+ return lh1->cookie == lh2->cookie;
+}
+
+static inline void lustre_handle_copy(struct lustre_handle *tgt,
+ struct lustre_handle *src)
+{
+ tgt->cookie = src->cookie;
+}
+
+/* flags for lm_flags */
+#define MSGHDR_AT_SUPPORT 0x1
+#define MSGHDR_CKSUM_INCOMPAT18 0x2
+
+#define lustre_msg lustre_msg_v2
+/* we depend on this structure to be 8-byte aligned */
+/* this type is only endian-adjusted in lustre_unpack_msg() */
+struct lustre_msg_v2 {
+ __u32 lm_bufcount;
+ __u32 lm_secflvr;
+ __u32 lm_magic;
+ __u32 lm_repsize;
+ __u32 lm_cksum;
+ __u32 lm_flags;
+ __u32 lm_padding_2;
+ __u32 lm_padding_3;
+ __u32 lm_buflens[0];
+};
+
+/* without gss, ptlrpc_body is put at the first buffer. */
+#define PTLRPC_NUM_VERSIONS 4
+#define JOBSTATS_JOBID_SIZE 32 /* 32 bytes string */
+struct ptlrpc_body_v3 {
+ struct lustre_handle pb_handle;
+ __u32 pb_type;
+ __u32 pb_version;
+ __u32 pb_opc;
+ __u32 pb_status;
+ __u64 pb_last_xid;
+ __u64 pb_last_seen;
+ __u64 pb_last_committed;
+ __u64 pb_transno;
+ __u32 pb_flags;
+ __u32 pb_op_flags;
+ __u32 pb_conn_cnt;
+ __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
+ __u32 pb_service_time; /* for rep, actual service time */
+ __u32 pb_limit;
+ __u64 pb_slv;
+ /* VBR: pre-versions */
+ __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
+ /* padding for future needs */
+ __u64 pb_padding[4];
+ char pb_jobid[JOBSTATS_JOBID_SIZE];
+};
+#define ptlrpc_body ptlrpc_body_v3
+
+struct ptlrpc_body_v2 {
+ struct lustre_handle pb_handle;
+ __u32 pb_type;
+ __u32 pb_version;
+ __u32 pb_opc;
+ __u32 pb_status;
+ __u64 pb_last_xid;
+ __u64 pb_last_seen;
+ __u64 pb_last_committed;
+ __u64 pb_transno;
+ __u32 pb_flags;
+ __u32 pb_op_flags;
+ __u32 pb_conn_cnt;
+ __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
+ __u32 pb_service_time; /* for rep, actual service time, also used for
+ net_latency of req */
+ __u32 pb_limit;
+ __u64 pb_slv;
+ /* VBR: pre-versions */
+ __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
+ /* padding for future needs */
+ __u64 pb_padding[4];
+};
+
+extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
+
+/* message body offset for lustre_msg_v2 */
+/* ptlrpc body offset in all request/reply messages */
+#define MSG_PTLRPC_BODY_OFF 0
+
+/* normal request/reply message record offset */
+#define REQ_REC_OFF 1
+#define REPLY_REC_OFF 1
+
+/* ldlm request message body offset */
+#define DLM_LOCKREQ_OFF 1 /* lockreq offset */
+#define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
+
+/* ldlm intent lock message body offset */
+#define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
+#define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
+
+/* ldlm reply message body offset */
+#define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
+#define DLM_REPLY_REC_OFF 2 /* reply record offset */
+
+/** only use in req->rq_{req,rep}_swab_mask */
+#define MSG_PTLRPC_HEADER_OFF 31
+
+/* Flags that are operation-specific go in the top 16 bits. */
+#define MSG_OP_FLAG_MASK 0xffff0000
+#define MSG_OP_FLAG_SHIFT 16
+
+/* Flags that apply to all requests are in the bottom 16 bits */
+#define MSG_GEN_FLAG_MASK 0x0000ffff
+#define MSG_LAST_REPLAY 0x0001
+#define MSG_RESENT 0x0002
+#define MSG_REPLAY 0x0004
+/* #define MSG_AT_SUPPORT 0x0008
+ * This was used in early prototypes of adaptive timeouts, and while there
+ * shouldn't be any users of that code there also isn't a need for using this
+ * bits. Defer usage until at least 1.10 to avoid potential conflict. */
+#define MSG_DELAY_REPLAY 0x0010
+#define MSG_VERSION_REPLAY 0x0020
+#define MSG_REQ_REPLAY_DONE 0x0040
+#define MSG_LOCK_REPLAY_DONE 0x0080
+
+/*
+ * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
+ */
+
+#define MSG_CONNECT_RECOVERING 0x00000001
+#define MSG_CONNECT_RECONNECT 0x00000002
+#define MSG_CONNECT_REPLAYABLE 0x00000004
+//#define MSG_CONNECT_PEER 0x8
+#define MSG_CONNECT_LIBCLIENT 0x00000010
+#define MSG_CONNECT_INITIAL 0x00000020
+#define MSG_CONNECT_ASYNC 0x00000040
+#define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
+#define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */
+
+/* Connect flags */
+#define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/
+#define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */
+#define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */
+#define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */
+#define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */
+#define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */
+#define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */
+#define OBD_CONNECT_ACL 0x80ULL /*access control lists */
+#define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */
+#define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/
+#define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */
+#define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */
+#define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/
+#define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated.
+ *We do not support JOIN FILE
+ *anymore, reserve this flags
+ *just for preventing such bit
+ *to be reused.*/
+#define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/
+#define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/
+#define OBD_CONNECT_RMT_CLIENT 0x10000ULL /*Remote client */
+#define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /*Remote client by force */
+#define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */
+#define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */
+#define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */
+#define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */
+#define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */
+#define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */
+#define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */
+#define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */
+#define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */
+#define OBD_CONNECT_REAL 0x8000000ULL /*real connection */
+#define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */
+#define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/
+#define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */
+#define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */
+#define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */
+#define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */
+#define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */
+#define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */
+#define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
+#define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */
+#define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits
+ * directory hash */
+#define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
+#define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */
+#define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */
+#define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */
+#define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
+ * RPC error properly */
+#define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
+ * finer space reservation */
+#define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
+ * policy and 2.x server */
+#define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */
+#define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
+#define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
+#define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */
+#define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */
+#define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* flock deadlock detection */
+#define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/*create stripe disposition*/
+
+/* XXX README XXX:
+ * Please DO NOT add flag values here before first ensuring that this same
+ * flag value is not in use on some other branch. Please clear any such
+ * changes with senior engineers before starting to use a new flag. Then,
+ * submit a small patch against EVERY branch that ONLY adds the new flag,
+ * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
+ * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
+ * can be approved and landed easily to reserve the flag for future use. */
+
+/* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
+ * connection. It is a temporary bug fix for Imperative Recovery interop
+ * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
+ * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. */
+#define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS
+
+#define OCD_HAS_FLAG(ocd, flg) \
+ (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
+
+
+#define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
+
+#define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
+ OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
+ OBD_CONNECT_IBITS | \
+ OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \
+ OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
+ OBD_CONNECT_RMT_CLIENT | \
+ OBD_CONNECT_RMT_CLIENT_FORCE | \
+ OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \
+ OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \
+ OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \
+ OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \
+ OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \
+ OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
+ OBD_CONNECT_EINPROGRESS | \
+ OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
+ OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
+ OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
+ OBD_CONNECT_FLOCK_DEAD | \
+ OBD_CONNECT_DISP_STRIPE)
+
+#define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
+ OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
+ OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
+ OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \
+ OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
+ LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \
+ OBD_CONNECT_RMT_CLIENT | \
+ OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
+ OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
+ OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
+ OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
+ OBD_CONNECT_MAX_EASIZE | \
+ OBD_CONNECT_EINPROGRESS | \
+ OBD_CONNECT_JOBSTATS | \
+ OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
+ OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
+ OBD_CONNECT_PINGLESS)
+#define ECHO_CONNECT_SUPPORTED (0)
+#define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
+ OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
+ OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS)
+
+/* Features required for this version of the client to work with server */
+#define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
+ OBD_CONNECT_FULL20)
+
+#define OBD_OCD_VERSION(major, minor, patch, fix) (((major)<<24) + \
+ ((minor)<<16) + \
+ ((patch)<<8) + (fix))
+#define OBD_OCD_VERSION_MAJOR(version) ((int)((version)>>24)&255)
+#define OBD_OCD_VERSION_MINOR(version) ((int)((version)>>16)&255)
+#define OBD_OCD_VERSION_PATCH(version) ((int)((version)>>8)&255)
+#define OBD_OCD_VERSION_FIX(version) ((int)(version)&255)
+
+/* This structure is used for both request and reply.
+ *
+ * If we eventually have separate connect data for different types, which we
+ * almost certainly will, then perhaps we stick a union in here. */
+struct obd_connect_data_v1 {
+ __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
+ __u32 ocd_version; /* lustre release version number */
+ __u32 ocd_grant; /* initial cache grant amount (bytes) */
+ __u32 ocd_index; /* LOV index to connect to */
+ __u32 ocd_brw_size; /* Maximum BRW size in bytes, must be 2^n */
+ __u64 ocd_ibits_known; /* inode bits this client understands */
+ __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
+ __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
+ __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
+ __u32 ocd_unused; /* also fix lustre_swab_connect */
+ __u64 ocd_transno; /* first transno from client to be replayed */
+ __u32 ocd_group; /* MDS group on OST */
+ __u32 ocd_cksum_types; /* supported checksum algorithms */
+ __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
+ __u32 ocd_instance; /* also fix lustre_swab_connect */
+ __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
+};
+
+struct obd_connect_data {
+ __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
+ __u32 ocd_version; /* lustre release version number */
+ __u32 ocd_grant; /* initial cache grant amount (bytes) */
+ __u32 ocd_index; /* LOV index to connect to */
+ __u32 ocd_brw_size; /* Maximum BRW size in bytes */
+ __u64 ocd_ibits_known; /* inode bits this client understands */
+ __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */
+ __u8 ocd_inodespace; /* log2 of the per-inode space consumption */
+ __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */
+ __u32 ocd_unused; /* also fix lustre_swab_connect */
+ __u64 ocd_transno; /* first transno from client to be replayed */
+ __u32 ocd_group; /* MDS group on OST */
+ __u32 ocd_cksum_types; /* supported checksum algorithms */
+ __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
+ __u32 ocd_instance; /* instance # of this target */
+ __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
+ /* Fields after ocd_maxbytes are only accessible by the receiver
+ * if the corresponding flag in ocd_connect_flags is set. Accessing
+ * any field after ocd_maxbytes on the receiver without a valid flag
+ * may result in out-of-bound memory access and kernel oops. */
+ __u64 padding1; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding2; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */
+ __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
+};
+/* XXX README XXX:
+ * Please DO NOT use any fields here before first ensuring that this same
+ * field is not in use on some other branch. Please clear any such changes
+ * with senior engineers before starting to use a new field. Then, submit
+ * a small patch against EVERY branch that ONLY adds the new field along with
+ * the matching OBD_CONNECT flag, so that can be approved and landed easily to
+ * reserve the flag for future use. */
+
+
+extern void lustre_swab_connect(struct obd_connect_data *ocd);
+
+/*
+ * Supported checksum algorithms. Up to 32 checksum types are supported.
+ * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
+ * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
+ * algorithm and also the OBD_FL_CKSUM* flags.
+ */
+typedef enum {
+ OBD_CKSUM_CRC32 = 0x00000001,
+ OBD_CKSUM_ADLER = 0x00000002,
+ OBD_CKSUM_CRC32C= 0x00000004,
+} cksum_type_t;
+
+/*
+ * OST requests: OBDO & OBD request records
+ */
+
+/* opcodes */
+typedef enum {
+ OST_REPLY = 0, /* reply ? */
+ OST_GETATTR = 1,
+ OST_SETATTR = 2,
+ OST_READ = 3,
+ OST_WRITE = 4,
+ OST_CREATE = 5,
+ OST_DESTROY = 6,
+ OST_GET_INFO = 7,
+ OST_CONNECT = 8,
+ OST_DISCONNECT = 9,
+ OST_PUNCH = 10,
+ OST_OPEN = 11,
+ OST_CLOSE = 12,
+ OST_STATFS = 13,
+ OST_SYNC = 16,
+ OST_SET_INFO = 17,
+ OST_QUOTACHECK = 18,
+ OST_QUOTACTL = 19,
+ OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
+ OST_LAST_OPC
+} ost_cmd_t;
+#define OST_FIRST_OPC OST_REPLY
+
+enum obdo_flags {
+ OBD_FL_INLINEDATA = 0x00000001,
+ OBD_FL_OBDMDEXISTS = 0x00000002,
+ OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */
+ OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */
+ OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/
+ OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
+ OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */
+ OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */
+ OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */
+ OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */
+ OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */
+ OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */
+ OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */
+ OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
+ OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */
+ OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */
+ OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
+ OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client.
+ * XXX: obsoleted - reserved for old
+ * clients prior than 2.2 */
+ OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
+ OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
+
+ /* Note that while these checksum values are currently separate bits,
+ * in 2.x we can actually allow all values from 1-31 if we wanted. */
+ OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
+ OBD_FL_CKSUM_CRC32C,
+
+ /* mask for local-only flag, which won't be sent over network */
+ OBD_FL_LOCAL_MASK = 0xF0000000,
+};
+
+#define LOV_MAGIC_V1 0x0BD10BD0
+#define LOV_MAGIC LOV_MAGIC_V1
+#define LOV_MAGIC_JOIN_V1 0x0BD20BD0
+#define LOV_MAGIC_V3 0x0BD30BD0
+
+/*
+ * magic for fully defined striping
+ * the idea is that we should have different magics for striping "hints"
+ * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
+ * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
+ * we can't just change it w/o long way preparation, but we still need a
+ * mechanism to allow LOD to differentiate hint versus ready striping.
+ * so, at the moment we do a trick: MDT knows what to expect from request
+ * depending on the case (replay uses ready striping, non-replay req uses
+ * hints), so MDT replaces magic with appropriate one and now LOD can
+ * easily understand what's inside -bzzz
+ */
+#define LOV_MAGIC_V1_DEF 0x0CD10BD0
+#define LOV_MAGIC_V3_DEF 0x0CD30BD0
+
+#define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
+#define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
+#define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
+#define LOV_PATTERN_CMOBD 0x200
+
+#define LOV_PATTERN_F_MASK 0xffff0000
+#define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
+
+#define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
+#define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
+
+#define lov_ost_data lov_ost_data_v1
+struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
+ struct ost_id l_ost_oi; /* OST object ID */
+ __u32 l_ost_gen; /* generation of this l_ost_idx */
+ __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
+};
+
+#define lov_mds_md lov_mds_md_v1
+struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
+ __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
+ __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
+ struct ost_id lmm_oi; /* LOV object ID */
+ __u32 lmm_stripe_size; /* size of stripe in bytes */
+ /* lmm_stripe_count used to be __u32 */
+ __u16 lmm_stripe_count; /* num stripes in use for this object */
+ __u16 lmm_layout_gen; /* layout generation number */
+ struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
+};
+
+/**
+ * Sigh, because pre-2.4 uses
+ * struct lov_mds_md_v1 {
+ * ........
+ * __u64 lmm_object_id;
+ * __u64 lmm_object_seq;
+ * ......
+ * }
+ * to identify the LOV(MDT) object, and lmm_object_seq will
+ * be normal_fid, which make it hard to combine these conversion
+ * to ostid_to FID. so we will do lmm_oi/fid conversion separately
+ *
+ * We can tell the lmm_oi by this way,
+ * 1.8: lmm_object_id = {inode}, lmm_object_gr = 0
+ * 2.1: lmm_object_id = {oid < 128k}, lmm_object_seq = FID_SEQ_NORMAL
+ * 2.4: lmm_oi.f_seq = FID_SEQ_NORMAL, lmm_oi.f_oid = {oid < 128k},
+ * lmm_oi.f_ver = 0
+ *
+ * But currently lmm_oi/lsm_oi does not have any "real" usages,
+ * except for printing some information, and the user can always
+ * get the real FID from LMA, besides this multiple case check might
+ * make swab more complicate. So we will keep using id/seq for lmm_oi.
+ */
+
+static inline void fid_to_lmm_oi(const struct lu_fid *fid,
+ struct ost_id *oi)
+{
+ oi->oi.oi_id = fid_oid(fid);
+ oi->oi.oi_seq = fid_seq(fid);
+}
+
+static inline void lmm_oi_set_seq(struct ost_id *oi, __u64 seq)
+{
+ oi->oi.oi_seq = seq;
+}
+
+static inline __u64 lmm_oi_id(struct ost_id *oi)
+{
+ return oi->oi.oi_id;
+}
+
+static inline __u64 lmm_oi_seq(struct ost_id *oi)
+{
+ return oi->oi.oi_seq;
+}
+
+static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
+ struct ost_id *src_oi)
+{
+ dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
+ dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
+}
+
+static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
+ struct ost_id *src_oi)
+{
+ dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
+ dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
+}
+
+/* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */
+
+#define MAX_MD_SIZE \
+ (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
+#define MIN_MD_SIZE \
+ (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
+
+#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
+#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
+#define XATTR_USER_PREFIX "user."
+#define XATTR_TRUSTED_PREFIX "trusted."
+#define XATTR_SECURITY_PREFIX "security."
+#define XATTR_LUSTRE_PREFIX "lustre."
+
+#define XATTR_NAME_LOV "trusted.lov"
+#define XATTR_NAME_LMA "trusted.lma"
+#define XATTR_NAME_LMV "trusted.lmv"
+#define XATTR_NAME_LINK "trusted.link"
+#define XATTR_NAME_FID "trusted.fid"
+#define XATTR_NAME_VERSION "trusted.version"
+#define XATTR_NAME_SOM "trusted.som"
+#define XATTR_NAME_HSM "trusted.hsm"
+#define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_namespace"
+
+struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
+ __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */
+ __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
+ struct ost_id lmm_oi; /* LOV object ID */
+ __u32 lmm_stripe_size; /* size of stripe in bytes */
+ /* lmm_stripe_count used to be __u32 */
+ __u16 lmm_stripe_count; /* num stripes in use for this object */
+ __u16 lmm_layout_gen; /* layout generation number */
+ char lmm_pool_name[LOV_MAXPOOLNAME]; /* must be 32bit aligned */
+ struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
+};
+
+static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
+{
+ if (lmm_magic == LOV_MAGIC_V3)
+ return sizeof(struct lov_mds_md_v3) +
+ stripes * sizeof(struct lov_ost_data_v1);
+ else
+ return sizeof(struct lov_mds_md_v1) +
+ stripes * sizeof(struct lov_ost_data_v1);
+}
+
+static inline __u32
+lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
+{
+ switch (lmm_magic) {
+ case LOV_MAGIC_V1: {
+ struct lov_mds_md_v1 lmm;
+
+ if (buf_size < sizeof(lmm))
+ return 0;
+
+ return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
+ }
+ case LOV_MAGIC_V3: {
+ struct lov_mds_md_v3 lmm;
+
+ if (buf_size < sizeof(lmm))
+ return 0;
+
+ return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
+ }
+ default:
+ return 0;
+ }
+}
+
+#define OBD_MD_FLID (0x00000001ULL) /* object ID */
+#define OBD_MD_FLATIME (0x00000002ULL) /* access time */
+#define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
+#define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
+#define OBD_MD_FLSIZE (0x00000010ULL) /* size */
+#define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
+#define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
+#define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
+#define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
+#define OBD_MD_FLUID (0x00000200ULL) /* user ID */
+#define OBD_MD_FLGID (0x00000400ULL) /* group ID */
+#define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
+#define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
+#define OBD_MD_FLGENER (0x00004000ULL) /* generation number */
+/*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */
+#define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
+#define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
+#define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
+#define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
+#define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
+#define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */
+/*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */
+#define OBD_MD_FLCOOKIE (0x00800000ULL) /* log cancellation cookie */
+#define OBD_MD_FLGROUP (0x01000000ULL) /* group */
+#define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
+#define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */
+ /* ->mds if epoch opens or closes */
+#define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
+#define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
+#define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
+#define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
+#define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
+
+#define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
+#define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */
+#define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
+#define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
+
+#define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
+#define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
+#define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
+#define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
+#define OBD_MD_FLRMTPERM (0x0000010000000000ULL) /* remote permission */
+#define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */
+#define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */
+#define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */
+#define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
+#define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
+ * under lock; for xattr
+ * requests means the
+ * client holds the lock */
+#define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
+
+#define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
+#define OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) /* lfs lgetfacl case */
+#define OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) /* lfs rsetfacl case */
+#define OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) /* lfs rgetfacl case */
+
+#define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
+#define OBD_MD_FLRELEASED (0x0020000000000000ULL) /* file released */
+
+#define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
+ OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
+ OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
+ OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
+ OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP)
+
+#define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
+
+/* don't forget obdo_fid which is way down at the bottom so it can
+ * come after the definition of llog_cookie */
+
+enum hss_valid {
+ HSS_SETMASK = 0x01,
+ HSS_CLEARMASK = 0x02,
+ HSS_ARCHIVE_ID = 0x04,
+};
+
+struct hsm_state_set {
+ __u32 hss_valid;
+ __u32 hss_archive_id;
+ __u64 hss_setmask;
+ __u64 hss_clearmask;
+};
+
+extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
+extern void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
+
+extern void lustre_swab_obd_statfs (struct obd_statfs *os);
+
+/* ost_body.data values for OST_BRW */
+
+#define OBD_BRW_READ 0x01
+#define OBD_BRW_WRITE 0x02
+#define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
+#define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
+ * transfer and is not accounted in
+ * the grant. */
+#define OBD_BRW_CHECK 0x10
+#define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
+#define OBD_BRW_GRANTED 0x40 /* the ost manages this */
+#define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
+#define OBD_BRW_NOQUOTA 0x100
+#define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
+#define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
+#define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
+#define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
+#define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
+
+#define OBD_OBJECT_EOF 0xffffffffffffffffULL
+
+#define OST_MIN_PRECREATE 32
+#define OST_MAX_PRECREATE 20000
+
+struct obd_ioobj {
+ struct ost_id ioo_oid; /* object ID, if multi-obj BRW */
+ __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4,
+ * now (PTLRPC_BULK_OPS_COUNT - 1) in
+ * high 16 bits in 2.4 and later */
+ __u32 ioo_bufcnt; /* number of niobufs for this object */
+};
+
+#define IOOBJ_MAX_BRW_BITS 16
+#define IOOBJ_TYPE_MASK ((1U << IOOBJ_MAX_BRW_BITS) - 1)
+#define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
+#define ioobj_max_brw_set(ioo, num) \
+do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
+
+extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
+
+/* multiple of 8 bytes => can array */
+struct niobuf_remote {
+ __u64 offset;
+ __u32 len;
+ __u32 flags;
+};
+
+extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
+
+/* lock value block communicated between the filter and llite */
+
+/* OST_LVB_ERR_INIT is needed because the return code in rc is
+ * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
+#define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
+#define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
+#define OST_LVB_IS_ERR(blocks) \
+ ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
+#define OST_LVB_SET_ERR(blocks, rc) \
+ do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
+#define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
+
+struct ost_lvb_v1 {
+ __u64 lvb_size;
+ __s64 lvb_mtime;
+ __s64 lvb_atime;
+ __s64 lvb_ctime;
+ __u64 lvb_blocks;
+};
+
+extern void lustre_swab_ost_lvb_v1(struct ost_lvb_v1 *lvb);
+
+struct ost_lvb {
+ __u64 lvb_size;
+ __s64 lvb_mtime;
+ __s64 lvb_atime;
+ __s64 lvb_ctime;
+ __u64 lvb_blocks;
+ __u32 lvb_mtime_ns;
+ __u32 lvb_atime_ns;
+ __u32 lvb_ctime_ns;
+ __u32 lvb_padding;
+};
+
+extern void lustre_swab_ost_lvb(struct ost_lvb *lvb);
+
+/*
+ * lquota data structures
+ */
+
+#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
+
+/* The lquota_id structure is an union of all the possible identifier types that
+ * can be used with quota, this includes:
+ * - 64-bit user ID
+ * - 64-bit group ID
+ * - a FID which can be used for per-directory quota in the future */
+union lquota_id {
+ struct lu_fid qid_fid; /* FID for per-directory quota */
+ __u64 qid_uid; /* user identifier */
+ __u64 qid_gid; /* group identifier */
+};
+
+/* quotactl management */
+struct obd_quotactl {
+ __u32 qc_cmd;
+ __u32 qc_type; /* see Q_* flag below */
+ __u32 qc_id;
+ __u32 qc_stat;
+ struct obd_dqinfo qc_dqinfo;
+ struct obd_dqblk qc_dqblk;
+};
+
+extern void lustre_swab_obd_quotactl(struct obd_quotactl *q);
+
+#define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
+#define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
+#define Q_GETOINFO 0x800102 /* get obd quota info */
+#define Q_GETOQUOTA 0x800103 /* get obd quotas */
+#define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
+
+#define Q_COPY(out, in, member) (out)->member = (in)->member
+
+#define QCTL_COPY(out, in) \
+do { \
+ Q_COPY(out, in, qc_cmd); \
+ Q_COPY(out, in, qc_type); \
+ Q_COPY(out, in, qc_id); \
+ Q_COPY(out, in, qc_stat); \
+ Q_COPY(out, in, qc_dqinfo); \
+ Q_COPY(out, in, qc_dqblk); \
+} while (0)
+
+/* Body of quota request used for quota acquire/release RPCs between quota
+ * master (aka QMT) and slaves (ak QSD). */
+struct quota_body {
+ struct lu_fid qb_fid; /* FID of global index packing the pool ID
+ * and type (data or metadata) as well as
+ * the quota type (user or group). */
+ union lquota_id qb_id; /* uid or gid or directory FID */
+ __u32 qb_flags; /* see below */
+ __u32 qb_padding;
+ __u64 qb_count; /* acquire/release count (kbytes/inodes) */
+ __u64 qb_usage; /* current slave usage (kbytes/inodes) */
+ __u64 qb_slv_ver; /* slave index file version */
+ struct lustre_handle qb_lockh; /* per-ID lock handle */
+ struct lustre_handle qb_glb_lockh; /* global lock handle */
+ __u64 qb_padding1[4];
+};
+
+/* When the quota_body is used in the reply of quota global intent
+ * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
+#define qb_slv_fid qb_fid
+/* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
+ * quota reply */
+#define qb_qunit qb_usage
+
+#define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
+#define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
+#define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
+#define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
+
+extern void lustre_swab_quota_body(struct quota_body *b);
+
+/* Quota types currently supported */
+enum {
+ LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
+ LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
+ LQUOTA_TYPE_MAX
+};
+
+/* There are 2 different resource types on which a quota limit can be enforced:
+ * - inodes on the MDTs
+ * - blocks on the OSTs */
+enum {
+ LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
+ LQUOTA_RES_DT = 0x02,
+ LQUOTA_LAST_RES,
+ LQUOTA_FIRST_RES = LQUOTA_RES_MD
+};
+#define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
+
+/*
+ * Space accounting support
+ * Format of an accounting record, providing disk usage information for a given
+ * user or group
+ */
+struct lquota_acct_rec { /* 16 bytes */
+ __u64 bspace; /* current space in use */
+ __u64 ispace; /* current # inodes in use */
+};
+
+/*
+ * Global quota index support
+ * Format of a global record, providing global quota settings for a given quota
+ * identifier
+ */
+struct lquota_glb_rec { /* 32 bytes */
+ __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
+ __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
+ __u64 qbr_time; /* grace time, in seconds */
+ __u64 qbr_granted; /* how much is granted to slaves, in #inodes or
+ * kbytes */
+};
+
+/*
+ * Slave index support
+ * Format of a slave record, recording how much space is granted to a given
+ * slave
+ */
+struct lquota_slv_rec { /* 8 bytes */
+ __u64 qsr_granted; /* space granted to the slave for the key=ID,
+ * in #inodes or kbytes */
+};
+
+/* Data structures associated with the quota locks */
+
+/* Glimpse descriptor used for the index & per-ID quota locks */
+struct ldlm_gl_lquota_desc {
+ union lquota_id gl_id; /* quota ID subject to the glimpse */
+ __u64 gl_flags; /* see LQUOTA_FL* below */
+ __u64 gl_ver; /* new index version */
+ __u64 gl_hardlimit; /* new hardlimit or qunit value */
+ __u64 gl_softlimit; /* new softlimit */
+ __u64 gl_time;
+ __u64 gl_pad2;
+};
+#define gl_qunit gl_hardlimit /* current qunit value used when
+ * glimpsing per-ID quota locks */
+
+/* quota glimpse flags */
+#define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
+
+/* LVB used with quota (global and per-ID) locks */
+struct lquota_lvb {
+ __u64 lvb_flags; /* see LQUOTA_FL* above */
+ __u64 lvb_id_may_rel; /* space that might be released later */
+ __u64 lvb_id_rel; /* space released by the slave for this ID */
+ __u64 lvb_id_qunit; /* current qunit value */
+ __u64 lvb_pad1;
+};
+
+extern void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
+
+/* LVB used with global quota lock */
+#define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
+
+/* op codes */
+typedef enum {
+ QUOTA_DQACQ = 601,
+ QUOTA_DQREL = 602,
+ QUOTA_LAST_OPC
+} quota_cmd_t;
+#define QUOTA_FIRST_OPC QUOTA_DQACQ
+
+/*
+ * MDS REQ RECORDS
+ */
+
+/* opcodes */
+typedef enum {
+ MDS_GETATTR = 33,
+ MDS_GETATTR_NAME = 34,
+ MDS_CLOSE = 35,
+ MDS_REINT = 36,
+ MDS_READPAGE = 37,
+ MDS_CONNECT = 38,
+ MDS_DISCONNECT = 39,
+ MDS_GETSTATUS = 40,
+ MDS_STATFS = 41,
+ MDS_PIN = 42,
+ MDS_UNPIN = 43,
+ MDS_SYNC = 44,
+ MDS_DONE_WRITING = 45,
+ MDS_SET_INFO = 46,
+ MDS_QUOTACHECK = 47,
+ MDS_QUOTACTL = 48,
+ MDS_GETXATTR = 49,
+ MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */
+ MDS_WRITEPAGE = 51,
+ MDS_IS_SUBDIR = 52,
+ MDS_GET_INFO = 53,
+ MDS_HSM_STATE_GET = 54,
+ MDS_HSM_STATE_SET = 55,
+ MDS_HSM_ACTION = 56,
+ MDS_HSM_PROGRESS = 57,
+ MDS_HSM_REQUEST = 58,
+ MDS_HSM_CT_REGISTER = 59,
+ MDS_HSM_CT_UNREGISTER = 60,
+ MDS_SWAP_LAYOUTS = 61,
+ MDS_LAST_OPC
+} mds_cmd_t;
+
+#define MDS_FIRST_OPC MDS_GETATTR
+
+
+/* opcodes for object update */
+typedef enum {
+ UPDATE_OBJ = 1000,
+ UPDATE_LAST_OPC
+} update_cmd_t;
+
+#define UPDATE_FIRST_OPC UPDATE_OBJ
+
+/*
+ * Do not exceed 63
+ */
+
+typedef enum {
+ REINT_SETATTR = 1,
+ REINT_CREATE = 2,
+ REINT_LINK = 3,
+ REINT_UNLINK = 4,
+ REINT_RENAME = 5,
+ REINT_OPEN = 6,
+ REINT_SETXATTR = 7,
+ REINT_RMENTRY = 8,
+// REINT_WRITE = 9,
+ REINT_MAX
+} mds_reint_t, mdt_reint_t;
+
+extern void lustre_swab_generic_32s (__u32 *val);
+
+/* the disposition of the intent outlines what was executed */
+#define DISP_IT_EXECD 0x00000001
+#define DISP_LOOKUP_EXECD 0x00000002
+#define DISP_LOOKUP_NEG 0x00000004
+#define DISP_LOOKUP_POS 0x00000008
+#define DISP_OPEN_CREATE 0x00000010
+#define DISP_OPEN_OPEN 0x00000020
+#define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
+#define DISP_ENQ_OPEN_REF 0x00800000
+#define DISP_ENQ_CREATE_REF 0x01000000
+#define DISP_OPEN_LOCK 0x02000000
+#define DISP_OPEN_LEASE 0x04000000
+#define DISP_OPEN_STRIPE 0x08000000
+
+/* INODE LOCK PARTS */
+#define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also
+ * was used to protect permission (mode,
+ * owner, group etc) before 2.4. */
+#define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
+#define MDS_INODELOCK_OPEN 0x000004 /* For opened files */
+#define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */
+
+/* The PERM bit is added int 2.4, and it is used to protect permission(mode,
+ * owner, group, acl etc), so to separate the permission from LOOKUP lock.
+ * Because for remote directories(in DNE), these locks will be granted by
+ * different MDTs(different ldlm namespace).
+ *
+ * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
+ * For Remote directory, the master MDT, where the remote directory is, will
+ * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
+ * will grant LOOKUP_LOCK. */
+#define MDS_INODELOCK_PERM 0x000010
+#define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */
+
+#define MDS_INODELOCK_MAXSHIFT 5
+/* This FULL lock is useful to take on unlink sort of operations */
+#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
+
+extern void lustre_swab_ll_fid (struct ll_fid *fid);
+
+/* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
+ * but was moved into name[1] along with the OID to avoid consuming the
+ * name[2,3] fields that need to be used for the quota id (also a FID). */
+enum {
+ LUSTRE_RES_ID_SEQ_OFF = 0,
+ LUSTRE_RES_ID_VER_OID_OFF = 1,
+ LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
+ LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
+ LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
+ LUSTRE_RES_ID_HSH_OFF = 3
+};
+
+#define MDS_STATUS_CONN 1
+#define MDS_STATUS_LOV 2
+
+/* mdt_thread_info.mti_flags. */
+enum md_op_flags {
+ /* The flag indicates Size-on-MDS attributes are changed. */
+ MF_SOM_CHANGE = (1 << 0),
+ /* Flags indicates an epoch opens or closes. */
+ MF_EPOCH_OPEN = (1 << 1),
+ MF_EPOCH_CLOSE = (1 << 2),
+ MF_MDC_CANCEL_FID1 = (1 << 3),
+ MF_MDC_CANCEL_FID2 = (1 << 4),
+ MF_MDC_CANCEL_FID3 = (1 << 5),
+ MF_MDC_CANCEL_FID4 = (1 << 6),
+ /* There is a pending attribute update. */
+ MF_SOM_AU = (1 << 7),
+ /* Cancel OST locks while getattr OST attributes. */
+ MF_GETATTR_LOCK = (1 << 8),
+ MF_GET_MDT_IDX = (1 << 9),
+};
+
+#define MF_SOM_LOCAL_FLAGS (MF_SOM_CHANGE | MF_EPOCH_OPEN | MF_EPOCH_CLOSE)
+
+#define LUSTRE_BFLAG_UNCOMMITTED_WRITES 0x1
+
+/* these should be identical to their EXT4_*_FL counterparts, they are
+ * redefined here only to avoid dragging in fs/ext4/ext4.h */
+#define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */
+#define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */
+#define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */
+#define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */
+#define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */
+
+/* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
+ * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire
+ * protocol equivalents of LDISKFS_*_FL values stored on disk, while
+ * the S_* flags are kernel-internal values that change between kernel
+ * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
+ * See b=16526 for a full history. */
+static inline int ll_ext_to_inode_flags(int flags)
+{
+ return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) |
+ ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) |
+ ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) |
+#if defined(S_DIRSYNC)
+ ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) |
+#endif
+ ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
+}
+
+static inline int ll_inode_to_ext_flags(int iflags)
+{
+ return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) |
+ ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) |
+ ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) |
+#if defined(S_DIRSYNC)
+ ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) |
+#endif
+ ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
+}
+
+/* 64 possible states */
+enum md_transient_state {
+ MS_RESTORE = (1 << 0), /* restore is running */
+};
+
+struct mdt_body {
+ struct lu_fid fid1;
+ struct lu_fid fid2;
+ struct lustre_handle handle;
+ __u64 valid;
+ __u64 size; /* Offset, in the case of MDS_READPAGE */
+ __s64 mtime;
+ __s64 atime;
+ __s64 ctime;
+ __u64 blocks; /* XID, in the case of MDS_READPAGE */
+ __u64 ioepoch;
+ __u64 t_state; /* transient file state defined in
+ * enum md_transient_state
+ * was "ino" until 2.4.0 */
+ __u32 fsuid;
+ __u32 fsgid;
+ __u32 capability;
+ __u32 mode;
+ __u32 uid;
+ __u32 gid;
+ __u32 flags; /* from vfs for pin/unpin, LUSTRE_BFLAG close */
+ __u32 rdev;
+ __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
+ __u32 unused2; /* was "generation" until 2.4.0 */
+ __u32 suppgid;
+ __u32 eadatasize;
+ __u32 aclsize;
+ __u32 max_mdsize;
+ __u32 max_cookiesize;
+ __u32 uid_h; /* high 32-bits of uid, for FUID */
+ __u32 gid_h; /* high 32-bits of gid, for FUID */
+ __u32 padding_5; /* also fix lustre_swab_mdt_body */
+ __u64 padding_6;
+ __u64 padding_7;
+ __u64 padding_8;
+ __u64 padding_9;
+ __u64 padding_10;
+}; /* 216 */
+
+extern void lustre_swab_mdt_body (struct mdt_body *b);
+
+struct mdt_ioepoch {
+ struct lustre_handle handle;
+ __u64 ioepoch;
+ __u32 flags;
+ __u32 padding;
+};
+
+extern void lustre_swab_mdt_ioepoch (struct mdt_ioepoch *b);
+
+/* permissions for md_perm.mp_perm */
+enum {
+ CFS_SETUID_PERM = 0x01,
+ CFS_SETGID_PERM = 0x02,
+ CFS_SETGRP_PERM = 0x04,
+ CFS_RMTACL_PERM = 0x08,
+ CFS_RMTOWN_PERM = 0x10
+};
+
+/* inode access permission for remote user, the inode info are omitted,
+ * for client knows them. */
+struct mdt_remote_perm {
+ __u32 rp_uid;
+ __u32 rp_gid;
+ __u32 rp_fsuid;
+ __u32 rp_fsuid_h;
+ __u32 rp_fsgid;
+ __u32 rp_fsgid_h;
+ __u32 rp_access_perm; /* MAY_READ/WRITE/EXEC */
+ __u32 rp_padding;
+};
+
+extern void lustre_swab_mdt_remote_perm(struct mdt_remote_perm *p);
+
+struct mdt_rec_setattr {
+ __u32 sa_opcode;
+ __u32 sa_cap;
+ __u32 sa_fsuid;
+ __u32 sa_fsuid_h;
+ __u32 sa_fsgid;
+ __u32 sa_fsgid_h;
+ __u32 sa_suppgid;
+ __u32 sa_suppgid_h;
+ __u32 sa_padding_1;
+ __u32 sa_padding_1_h;
+ struct lu_fid sa_fid;
+ __u64 sa_valid;
+ __u32 sa_uid;
+ __u32 sa_gid;
+ __u64 sa_size;
+ __u64 sa_blocks;
+ __s64 sa_mtime;
+ __s64 sa_atime;
+ __s64 sa_ctime;
+ __u32 sa_attr_flags;
+ __u32 sa_mode;
+ __u32 sa_bias; /* some operation flags */
+ __u32 sa_padding_3;
+ __u32 sa_padding_4;
+ __u32 sa_padding_5;
+};
+
+extern void lustre_swab_mdt_rec_setattr (struct mdt_rec_setattr *sa);
+
+/*
+ * Attribute flags used in mdt_rec_setattr::sa_valid.
+ * The kernel's #defines for ATTR_* should not be used over the network
+ * since the client and MDS may run different kernels (see bug 13828)
+ * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
+ */
+#define MDS_ATTR_MODE 0x1ULL /* = 1 */
+#define MDS_ATTR_UID 0x2ULL /* = 2 */
+#define MDS_ATTR_GID 0x4ULL /* = 4 */
+#define MDS_ATTR_SIZE 0x8ULL /* = 8 */
+#define MDS_ATTR_ATIME 0x10ULL /* = 16 */
+#define MDS_ATTR_MTIME 0x20ULL /* = 32 */
+#define MDS_ATTR_CTIME 0x40ULL /* = 64 */
+#define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */
+#define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */
+#define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */
+#define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */
+#define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */
+#define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */
+#define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */
+#define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
+#define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */
+
+#ifndef FMODE_READ
+#define FMODE_READ 00000001
+#define FMODE_WRITE 00000002
+#endif
+
+#define MDS_FMODE_CLOSED 00000000
+#define MDS_FMODE_EXEC 00000004
+/* IO Epoch is opened on a closed file. */
+#define MDS_FMODE_EPOCH 01000000
+/* IO Epoch is opened on a file truncate. */
+#define MDS_FMODE_TRUNC 02000000
+/* Size-on-MDS Attribute Update is pending. */
+#define MDS_FMODE_SOM 04000000
+
+#define MDS_OPEN_CREATED 00000010
+#define MDS_OPEN_CROSS 00000020
+
+#define MDS_OPEN_CREAT 00000100
+#define MDS_OPEN_EXCL 00000200
+#define MDS_OPEN_TRUNC 00001000
+#define MDS_OPEN_APPEND 00002000
+#define MDS_OPEN_SYNC 00010000
+#define MDS_OPEN_DIRECTORY 00200000
+
+#define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */
+#define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
+#define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
+#define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file.
+ * We do not support JOIN FILE
+ * anymore, reserve this flags
+ * just for preventing such bit
+ * to be reused. */
+
+#define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */
+#define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
+#define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
+#define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */
+#define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or
+ * hsm restore) */
+#define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
+ unlinked */
+#define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
+ * delegation, succeed if it's not
+ * being opened with conflict mode.
+ */
+#define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */
+
+/* permission for create non-directory file */
+#define MAY_CREATE (1 << 7)
+/* permission for create directory file */
+#define MAY_LINK (1 << 8)
+/* permission for delete from the directory */
+#define MAY_UNLINK (1 << 9)
+/* source's permission for rename */
+#define MAY_RENAME_SRC (1 << 10)
+/* target's permission for rename */
+#define MAY_RENAME_TAR (1 << 11)
+/* part (parent's) VTX permission check */
+#define MAY_VTX_PART (1 << 12)
+/* full VTX permission check */
+#define MAY_VTX_FULL (1 << 13)
+/* lfs rgetfacl permission check */
+#define MAY_RGETFACL (1 << 14)
+
+enum mds_op_bias {
+ MDS_CHECK_SPLIT = 1 << 0,
+ MDS_CROSS_REF = 1 << 1,
+ MDS_VTX_BYPASS = 1 << 2,
+ MDS_PERM_BYPASS = 1 << 3,
+ MDS_SOM = 1 << 4,
+ MDS_QUOTA_IGNORE = 1 << 5,
+ MDS_CLOSE_CLEANUP = 1 << 6,
+ MDS_KEEP_ORPHAN = 1 << 7,
+ MDS_RECOV_OPEN = 1 << 8,
+ MDS_DATA_MODIFIED = 1 << 9,
+ MDS_CREATE_VOLATILE = 1 << 10,
+ MDS_OWNEROVERRIDE = 1 << 11,
+ MDS_HSM_RELEASE = 1 << 12,
+};
+
+/* instance of mdt_reint_rec */
+struct mdt_rec_create {
+ __u32 cr_opcode;
+ __u32 cr_cap;
+ __u32 cr_fsuid;
+ __u32 cr_fsuid_h;
+ __u32 cr_fsgid;
+ __u32 cr_fsgid_h;
+ __u32 cr_suppgid1;
+ __u32 cr_suppgid1_h;
+ __u32 cr_suppgid2;
+ __u32 cr_suppgid2_h;
+ struct lu_fid cr_fid1;
+ struct lu_fid cr_fid2;
+ struct lustre_handle cr_old_handle; /* handle in case of open replay */
+ __s64 cr_time;
+ __u64 cr_rdev;
+ __u64 cr_ioepoch;
+ __u64 cr_padding_1; /* rr_blocks */
+ __u32 cr_mode;
+ __u32 cr_bias;
+ /* use of helpers set/get_mrc_cr_flags() is needed to access
+ * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
+ * extend cr_flags size without breaking 1.8 compat */
+ __u32 cr_flags_l; /* for use with open, low 32 bits */
+ __u32 cr_flags_h; /* for use with open, high 32 bits */
+ __u32 cr_umask; /* umask for create */
+ __u32 cr_padding_4; /* rr_padding_4 */
+};
+
+static inline void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags)
+{
+ mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll);
+ mrc->cr_flags_h = (__u32)(flags >> 32);
+}
+
+static inline __u64 get_mrc_cr_flags(struct mdt_rec_create *mrc)
+{
+ return ((__u64)(mrc->cr_flags_l) | ((__u64)mrc->cr_flags_h << 32));
+}
+
+/* instance of mdt_reint_rec */
+struct mdt_rec_link {
+ __u32 lk_opcode;
+ __u32 lk_cap;
+ __u32 lk_fsuid;
+ __u32 lk_fsuid_h;
+ __u32 lk_fsgid;
+ __u32 lk_fsgid_h;
+ __u32 lk_suppgid1;
+ __u32 lk_suppgid1_h;
+ __u32 lk_suppgid2;
+ __u32 lk_suppgid2_h;
+ struct lu_fid lk_fid1;
+ struct lu_fid lk_fid2;
+ __s64 lk_time;
+ __u64 lk_padding_1; /* rr_atime */
+ __u64 lk_padding_2; /* rr_ctime */
+ __u64 lk_padding_3; /* rr_size */
+ __u64 lk_padding_4; /* rr_blocks */
+ __u32 lk_bias;
+ __u32 lk_padding_5; /* rr_mode */
+ __u32 lk_padding_6; /* rr_flags */
+ __u32 lk_padding_7; /* rr_padding_2 */
+ __u32 lk_padding_8; /* rr_padding_3 */
+ __u32 lk_padding_9; /* rr_padding_4 */
+};
+
+/* instance of mdt_reint_rec */
+struct mdt_rec_unlink {
+ __u32 ul_opcode;
+ __u32 ul_cap;
+ __u32 ul_fsuid;
+ __u32 ul_fsuid_h;
+ __u32 ul_fsgid;
+ __u32 ul_fsgid_h;
+ __u32 ul_suppgid1;
+ __u32 ul_suppgid1_h;
+ __u32 ul_suppgid2;
+ __u32 ul_suppgid2_h;
+ struct lu_fid ul_fid1;
+ struct lu_fid ul_fid2;
+ __s64 ul_time;
+ __u64 ul_padding_2; /* rr_atime */
+ __u64 ul_padding_3; /* rr_ctime */
+ __u64 ul_padding_4; /* rr_size */
+ __u64 ul_padding_5; /* rr_blocks */
+ __u32 ul_bias;
+ __u32 ul_mode;
+ __u32 ul_padding_6; /* rr_flags */
+ __u32 ul_padding_7; /* rr_padding_2 */
+ __u32 ul_padding_8; /* rr_padding_3 */
+ __u32 ul_padding_9; /* rr_padding_4 */
+};
+
+/* instance of mdt_reint_rec */
+struct mdt_rec_rename {
+ __u32 rn_opcode;
+ __u32 rn_cap;
+ __u32 rn_fsuid;
+ __u32 rn_fsuid_h;
+ __u32 rn_fsgid;
+ __u32 rn_fsgid_h;
+ __u32 rn_suppgid1;
+ __u32 rn_suppgid1_h;
+ __u32 rn_suppgid2;
+ __u32 rn_suppgid2_h;
+ struct lu_fid rn_fid1;
+ struct lu_fid rn_fid2;
+ __s64 rn_time;
+ __u64 rn_padding_1; /* rr_atime */
+ __u64 rn_padding_2; /* rr_ctime */
+ __u64 rn_padding_3; /* rr_size */
+ __u64 rn_padding_4; /* rr_blocks */
+ __u32 rn_bias; /* some operation flags */
+ __u32 rn_mode; /* cross-ref rename has mode */
+ __u32 rn_padding_5; /* rr_flags */
+ __u32 rn_padding_6; /* rr_padding_2 */
+ __u32 rn_padding_7; /* rr_padding_3 */
+ __u32 rn_padding_8; /* rr_padding_4 */
+};
+
+/* instance of mdt_reint_rec */
+struct mdt_rec_setxattr {
+ __u32 sx_opcode;
+ __u32 sx_cap;
+ __u32 sx_fsuid;
+ __u32 sx_fsuid_h;
+ __u32 sx_fsgid;
+ __u32 sx_fsgid_h;
+ __u32 sx_suppgid1;
+ __u32 sx_suppgid1_h;
+ __u32 sx_suppgid2;
+ __u32 sx_suppgid2_h;
+ struct lu_fid sx_fid;
+ __u64 sx_padding_1; /* These three are rr_fid2 */
+ __u32 sx_padding_2;
+ __u32 sx_padding_3;
+ __u64 sx_valid;
+ __s64 sx_time;
+ __u64 sx_padding_5; /* rr_ctime */
+ __u64 sx_padding_6; /* rr_size */
+ __u64 sx_padding_7; /* rr_blocks */
+ __u32 sx_size;
+ __u32 sx_flags;
+ __u32 sx_padding_8; /* rr_flags */
+ __u32 sx_padding_9; /* rr_padding_2 */
+ __u32 sx_padding_10; /* rr_padding_3 */
+ __u32 sx_padding_11; /* rr_padding_4 */
+};
+
+/*
+ * mdt_rec_reint is the template for all mdt_reint_xxx structures.
+ * Do NOT change the size of various members, otherwise the value
+ * will be broken in lustre_swab_mdt_rec_reint().
+ *
+ * If you add new members in other mdt_reint_xxx structures and need to use the
+ * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
+ */
+struct mdt_rec_reint {
+ __u32 rr_opcode;
+ __u32 rr_cap;
+ __u32 rr_fsuid;
+ __u32 rr_fsuid_h;
+ __u32 rr_fsgid;
+ __u32 rr_fsgid_h;
+ __u32 rr_suppgid1;
+ __u32 rr_suppgid1_h;
+ __u32 rr_suppgid2;
+ __u32 rr_suppgid2_h;
+ struct lu_fid rr_fid1;
+ struct lu_fid rr_fid2;
+ __s64 rr_mtime;
+ __s64 rr_atime;
+ __s64 rr_ctime;
+ __u64 rr_size;
+ __u64 rr_blocks;
+ __u32 rr_bias;
+ __u32 rr_mode;
+ __u32 rr_flags;
+ __u32 rr_flags_h;
+ __u32 rr_umask;
+ __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
+};
+
+extern void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
+
+struct lmv_desc {
+ __u32 ld_tgt_count; /* how many MDS's */
+ __u32 ld_active_tgt_count; /* how many active */
+ __u32 ld_default_stripe_count; /* how many objects are used */
+ __u32 ld_pattern; /* default MEA_MAGIC_* */
+ __u64 ld_default_hash_size;
+ __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
+ __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
+ __u32 ld_qos_maxage; /* in second */
+ __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */
+ __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */
+ struct obd_uuid ld_uuid;
+};
+
+extern void lustre_swab_lmv_desc (struct lmv_desc *ld);
+
+/* TODO: lmv_stripe_md should contain mds capabilities for all slave fids */
+struct lmv_stripe_md {
+ __u32 mea_magic;
+ __u32 mea_count;
+ __u32 mea_master;
+ __u32 mea_padding;
+ char mea_pool_name[LOV_MAXPOOLNAME];
+ struct lu_fid mea_ids[0];
+};
+
+extern void lustre_swab_lmv_stripe_md(struct lmv_stripe_md *mea);
+
+/* lmv structures */
+#define MEA_MAGIC_LAST_CHAR 0xb2221ca1
+#define MEA_MAGIC_ALL_CHARS 0xb222a11c
+#define MEA_MAGIC_HASH_SEGMENT 0xb222a11b
+
+#define MAX_HASH_SIZE_32 0x7fffffffUL
+#define MAX_HASH_SIZE 0x7fffffffffffffffULL
+#define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL
+
+enum fld_rpc_opc {
+ FLD_QUERY = 900,
+ FLD_LAST_OPC,
+ FLD_FIRST_OPC = FLD_QUERY
+};
+
+enum seq_rpc_opc {
+ SEQ_QUERY = 700,
+ SEQ_LAST_OPC,
+ SEQ_FIRST_OPC = SEQ_QUERY
+};
+
+enum seq_op {
+ SEQ_ALLOC_SUPER = 0,
+ SEQ_ALLOC_META = 1
+};
+
+/*
+ * LOV data structures
+ */
+
+#define LOV_MAX_UUID_BUFFER_SIZE 8192
+/* The size of the buffer the lov/mdc reserves for the
+ * array of UUIDs returned by the MDS. With the current
+ * protocol, this will limit the max number of OSTs per LOV */
+
+#define LOV_DESC_MAGIC 0xB0CCDE5C
+#define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */
+#define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
+
+/* LOV settings descriptor (should only contain static info) */
+struct lov_desc {
+ __u32 ld_tgt_count; /* how many OBD's */
+ __u32 ld_active_tgt_count; /* how many active */
+ __u32 ld_default_stripe_count; /* how many objects are used */
+ __u32 ld_pattern; /* default PATTERN_RAID0 */
+ __u64 ld_default_stripe_size; /* in bytes */
+ __u64 ld_default_stripe_offset; /* in bytes */
+ __u32 ld_padding_0; /* unused */
+ __u32 ld_qos_maxage; /* in second */
+ __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */
+ __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */
+ struct obd_uuid ld_uuid;
+};
+
+#define ld_magic ld_active_tgt_count /* for swabbing from llogs */
+
+extern void lustre_swab_lov_desc (struct lov_desc *ld);
+
+/*
+ * LDLM requests:
+ */
+/* opcodes -- MUST be distinct from OST/MDS opcodes */
+typedef enum {
+ LDLM_ENQUEUE = 101,
+ LDLM_CONVERT = 102,
+ LDLM_CANCEL = 103,
+ LDLM_BL_CALLBACK = 104,
+ LDLM_CP_CALLBACK = 105,
+ LDLM_GL_CALLBACK = 106,
+ LDLM_SET_INFO = 107,
+ LDLM_LAST_OPC
+} ldlm_cmd_t;
+#define LDLM_FIRST_OPC LDLM_ENQUEUE
+
+#define RES_NAME_SIZE 4
+struct ldlm_res_id {
+ __u64 name[RES_NAME_SIZE];
+};
+
+#define DLDLMRES "[%#llx:%#llx:%#llx].%llx"
+#define PLDLMRES(res) (res)->lr_name.name[0], (res)->lr_name.name[1], \
+ (res)->lr_name.name[2], (res)->lr_name.name[3]
+
+extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
+
+static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
+ const struct ldlm_res_id *res1)
+{
+ return !memcmp(res0, res1, sizeof(*res0));
+}
+
+/* lock types */
+typedef enum {
+ LCK_MINMODE = 0,
+ LCK_EX = 1,
+ LCK_PW = 2,
+ LCK_PR = 4,
+ LCK_CW = 8,
+ LCK_CR = 16,
+ LCK_NL = 32,
+ LCK_GROUP = 64,
+ LCK_COS = 128,
+ LCK_MAXMODE
+} ldlm_mode_t;
+
+#define LCK_MODE_NUM 8
+
+typedef enum {
+ LDLM_PLAIN = 10,
+ LDLM_EXTENT = 11,
+ LDLM_FLOCK = 12,
+ LDLM_IBITS = 13,
+ LDLM_MAX_TYPE
+} ldlm_type_t;
+
+#define LDLM_MIN_TYPE LDLM_PLAIN
+
+struct ldlm_extent {
+ __u64 start;
+ __u64 end;
+ __u64 gid;
+};
+
+static inline int ldlm_extent_overlap(struct ldlm_extent *ex1,
+ struct ldlm_extent *ex2)
+{
+ return (ex1->start <= ex2->end) && (ex2->start <= ex1->end);
+}
+
+/* check if @ex1 contains @ex2 */
+static inline int ldlm_extent_contain(struct ldlm_extent *ex1,
+ struct ldlm_extent *ex2)
+{
+ return (ex1->start <= ex2->start) && (ex1->end >= ex2->end);
+}
+
+struct ldlm_inodebits {
+ __u64 bits;
+};
+
+struct ldlm_flock_wire {
+ __u64 lfw_start;
+ __u64 lfw_end;
+ __u64 lfw_owner;
+ __u32 lfw_padding;
+ __u32 lfw_pid;
+};
+
+/* it's important that the fields of the ldlm_extent structure match
+ * the first fields of the ldlm_flock structure because there is only
+ * one ldlm_swab routine to process the ldlm_policy_data_t union. if
+ * this ever changes we will need to swab the union differently based
+ * on the resource type. */
+
+typedef union {
+ struct ldlm_extent l_extent;
+ struct ldlm_flock_wire l_flock;
+ struct ldlm_inodebits l_inodebits;
+} ldlm_wire_policy_data_t;
+
+extern void lustre_swab_ldlm_policy_data (ldlm_wire_policy_data_t *d);
+
+union ldlm_gl_desc {
+ struct ldlm_gl_lquota_desc lquota_desc;
+};
+
+extern void lustre_swab_gl_desc(union ldlm_gl_desc *);
+
+struct ldlm_intent {
+ __u64 opc;
+};
+
+extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
+
+struct ldlm_resource_desc {
+ ldlm_type_t lr_type;
+ __u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */
+ struct ldlm_res_id lr_name;
+};
+
+extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
+
+struct ldlm_lock_desc {
+ struct ldlm_resource_desc l_resource;
+ ldlm_mode_t l_req_mode;
+ ldlm_mode_t l_granted_mode;
+ ldlm_wire_policy_data_t l_policy_data;
+};
+
+extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
+
+#define LDLM_LOCKREQ_HANDLES 2
+#define LDLM_ENQUEUE_CANCEL_OFF 1
+
+struct ldlm_request {
+ __u32 lock_flags;
+ __u32 lock_count;
+ struct ldlm_lock_desc lock_desc;
+ struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
+};
+
+extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
+
+/* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
+ * Otherwise, 2 are available. */
+#define ldlm_request_bufsize(count, type) \
+({ \
+ int _avail = LDLM_LOCKREQ_HANDLES; \
+ _avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \
+ sizeof(struct ldlm_request) + \
+ (count > _avail ? count - _avail : 0) * \
+ sizeof(struct lustre_handle); \
+})
+
+struct ldlm_reply {
+ __u32 lock_flags;
+ __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */
+ struct ldlm_lock_desc lock_desc;
+ struct lustre_handle lock_handle;
+ __u64 lock_policy_res1;
+ __u64 lock_policy_res2;
+};
+
+extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
+
+#define ldlm_flags_to_wire(flags) ((__u32)(flags))
+#define ldlm_flags_from_wire(flags) ((__u64)(flags))
+
+/*
+ * Opcodes for mountconf (mgs and mgc)
+ */
+typedef enum {
+ MGS_CONNECT = 250,
+ MGS_DISCONNECT,
+ MGS_EXCEPTION, /* node died, etc. */
+ MGS_TARGET_REG, /* whenever target starts up */
+ MGS_TARGET_DEL,
+ MGS_SET_INFO,
+ MGS_CONFIG_READ,
+ MGS_LAST_OPC
+} mgs_cmd_t;
+#define MGS_FIRST_OPC MGS_CONNECT
+
+#define MGS_PARAM_MAXLEN 1024
+#define KEY_SET_INFO "set_info"
+
+struct mgs_send_param {
+ char mgs_param[MGS_PARAM_MAXLEN];
+};
+
+/* We pass this info to the MGS so it can write config logs */
+#define MTI_NAME_MAXLEN 64
+#define MTI_PARAM_MAXLEN 4096
+#define MTI_NIDS_MAX 32
+struct mgs_target_info {
+ __u32 mti_lustre_ver;
+ __u32 mti_stripe_index;
+ __u32 mti_config_ver;
+ __u32 mti_flags;
+ __u32 mti_nid_count;
+ __u32 mti_instance; /* Running instance of target */
+ char mti_fsname[MTI_NAME_MAXLEN];
+ char mti_svname[MTI_NAME_MAXLEN];
+ char mti_uuid[sizeof(struct obd_uuid)];
+ __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/
+ char mti_params[MTI_PARAM_MAXLEN];
+};
+extern void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo);
+
+struct mgs_nidtbl_entry {
+ __u64 mne_version; /* table version of this entry */
+ __u32 mne_instance; /* target instance # */
+ __u32 mne_index; /* target index */
+ __u32 mne_length; /* length of this entry - by bytes */
+ __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */
+ __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */
+ __u8 mne_nid_size; /* size of each NID, by bytes */
+ __u8 mne_nid_count; /* # of NIDs in buffer */
+ union {
+ lnet_nid_t nids[0]; /* variable size buffer for NIDs. */
+ } u;
+};
+extern void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *oinfo);
+
+struct mgs_config_body {
+ char mcb_name[MTI_NAME_MAXLEN]; /* logname */
+ __u64 mcb_offset; /* next index of config log to request */
+ __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */
+ __u8 mcb_reserved;
+ __u8 mcb_bits; /* bits unit size of config log */
+ __u32 mcb_units; /* # of units for bulk transfer */
+};
+extern void lustre_swab_mgs_config_body(struct mgs_config_body *body);
+
+struct mgs_config_res {
+ __u64 mcr_offset; /* index of last config log */
+ __u64 mcr_size; /* size of the log */
+};
+extern void lustre_swab_mgs_config_res(struct mgs_config_res *body);
+
+/* Config marker flags (in config log) */
+#define CM_START 0x01
+#define CM_END 0x02
+#define CM_SKIP 0x04
+#define CM_UPGRADE146 0x08
+#define CM_EXCLUDE 0x10
+#define CM_START_SKIP (CM_START | CM_SKIP)
+
+struct cfg_marker {
+ __u32 cm_step; /* aka config version */
+ __u32 cm_flags;
+ __u32 cm_vers; /* lustre release version number */
+ __u32 cm_padding; /* 64 bit align */
+ __s64 cm_createtime; /*when this record was first created */
+ __s64 cm_canceltime; /*when this record is no longer valid*/
+ char cm_tgtname[MTI_NAME_MAXLEN];
+ char cm_comment[MTI_NAME_MAXLEN];
+};
+
+extern void lustre_swab_cfg_marker(struct cfg_marker *marker,
+ int swab, int size);
+
+/*
+ * Opcodes for multiple servers.
+ */
+
+typedef enum {
+ OBD_PING = 400,
+ OBD_LOG_CANCEL,
+ OBD_QC_CALLBACK,
+ OBD_IDX_READ,
+ OBD_LAST_OPC
+} obd_cmd_t;
+#define OBD_FIRST_OPC OBD_PING
+
+/* catalog of log objects */
+
+/** Identifier for a single log object */
+struct llog_logid {
+ struct ost_id lgl_oi;
+ __u32 lgl_ogen;
+} __attribute__((packed));
+
+/** Records written to the CATALOGS list */
+#define CATLIST "CATALOGS"
+struct llog_catid {
+ struct llog_logid lci_logid;
+ __u32 lci_padding1;
+ __u32 lci_padding2;
+ __u32 lci_padding3;
+} __attribute__((packed));
+
+/* Log data record types - there is no specific reason that these need to
+ * be related to the RPC opcodes, but no reason not to (may be handy later?)
+ */
+#define LLOG_OP_MAGIC 0x10600000
+#define LLOG_OP_MASK 0xfff00000
+
+typedef enum {
+ LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000,
+ OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00,
+ /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
+ MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
+ REINT_UNLINK, /* obsolete after 2.5.0 */
+ MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
+ REINT_UNLINK,
+ /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
+ MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
+ REINT_SETATTR,
+ OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000,
+ /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
+ LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000,
+ /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
+ CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000,
+ CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000,
+ HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
+ LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539,
+ LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b,
+} llog_op_type;
+
+#define LLOG_REC_HDR_NEEDS_SWABBING(r) \
+ (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
+
+/** Log record header - stored in little endian order.
+ * Each record must start with this struct, end with a llog_rec_tail,
+ * and be a multiple of 256 bits in size.
+ */
+struct llog_rec_hdr {
+ __u32 lrh_len;
+ __u32 lrh_index;
+ __u32 lrh_type;
+ __u32 lrh_id;
+};
+
+struct llog_rec_tail {
+ __u32 lrt_len;
+ __u32 lrt_index;
+};
+
+/* Where data follow just after header */
+#define REC_DATA(ptr) \
+ ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
+
+#define REC_DATA_LEN(rec) \
+ (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
+ sizeof(struct llog_rec_tail))
+
+struct llog_logid_rec {
+ struct llog_rec_hdr lid_hdr;
+ struct llog_logid lid_id;
+ __u32 lid_padding1;
+ __u64 lid_padding2;
+ __u64 lid_padding3;
+ struct llog_rec_tail lid_tail;
+} __attribute__((packed));
+
+struct llog_unlink_rec {
+ struct llog_rec_hdr lur_hdr;
+ __u64 lur_oid;
+ __u32 lur_oseq;
+ __u32 lur_count;
+ struct llog_rec_tail lur_tail;
+} __attribute__((packed));
+
+struct llog_unlink64_rec {
+ struct llog_rec_hdr lur_hdr;
+ struct lu_fid lur_fid;
+ __u32 lur_count; /* to destroy the lost precreated */
+ __u32 lur_padding1;
+ __u64 lur_padding2;
+ __u64 lur_padding3;
+ struct llog_rec_tail lur_tail;
+} __attribute__((packed));
+
+struct llog_setattr64_rec {
+ struct llog_rec_hdr lsr_hdr;
+ struct ost_id lsr_oi;
+ __u32 lsr_uid;
+ __u32 lsr_uid_h;
+ __u32 lsr_gid;
+ __u32 lsr_gid_h;
+ __u64 lsr_padding;
+ struct llog_rec_tail lsr_tail;
+} __attribute__((packed));
+
+struct llog_size_change_rec {
+ struct llog_rec_hdr lsc_hdr;
+ struct ll_fid lsc_fid;
+ __u32 lsc_ioepoch;
+ __u32 lsc_padding1;
+ __u64 lsc_padding2;
+ __u64 lsc_padding3;
+ struct llog_rec_tail lsc_tail;
+} __attribute__((packed));
+
+#define CHANGELOG_MAGIC 0xca103000
+
+/** \a changelog_rec_type's that can't be masked */
+#define CHANGELOG_MINMASK (1 << CL_MARK)
+/** bits covering all \a changelog_rec_type's */
+#define CHANGELOG_ALLMASK 0XFFFFFFFF
+/** default \a changelog_rec_type mask */
+#define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE)
+
+/* changelog llog name, needed by client replicators */
+#define CHANGELOG_CATALOG "changelog_catalog"
+
+struct changelog_setinfo {
+ __u64 cs_recno;
+ __u32 cs_id;
+} __attribute__((packed));
+
+/** changelog record */
+struct llog_changelog_rec {
+ struct llog_rec_hdr cr_hdr;
+ struct changelog_rec cr;
+ struct llog_rec_tail cr_tail; /**< for_sizezof_only */
+} __attribute__((packed));
+
+struct llog_changelog_ext_rec {
+ struct llog_rec_hdr cr_hdr;
+ struct changelog_ext_rec cr;
+ struct llog_rec_tail cr_tail; /**< for_sizezof_only */
+} __attribute__((packed));
+
+#define CHANGELOG_USER_PREFIX "cl"
+
+struct llog_changelog_user_rec {
+ struct llog_rec_hdr cur_hdr;
+ __u32 cur_id;
+ __u32 cur_padding;
+ __u64 cur_endrec;
+ struct llog_rec_tail cur_tail;
+} __attribute__((packed));
+
+enum agent_req_status {
+ ARS_WAITING,
+ ARS_STARTED,
+ ARS_FAILED,
+ ARS_CANCELED,
+ ARS_SUCCEED,
+};
+
+static inline char *agent_req_status2name(enum agent_req_status ars)
+{
+ switch (ars) {
+ case ARS_WAITING:
+ return "WAITING";
+ case ARS_STARTED:
+ return "STARTED";
+ case ARS_FAILED:
+ return "FAILED";
+ case ARS_CANCELED:
+ return "CANCELED";
+ case ARS_SUCCEED:
+ return "SUCCEED";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static inline bool agent_req_in_final_state(enum agent_req_status ars)
+{
+ return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
+ (ars == ARS_CANCELED));
+}
+
+struct llog_agent_req_rec {
+ struct llog_rec_hdr arr_hdr; /**< record header */
+ __u32 arr_status; /**< status of the request */
+ /* must match enum
+ * agent_req_status */
+ __u32 arr_archive_id; /**< backend archive number */
+ __u64 arr_flags; /**< req flags */
+ __u64 arr_compound_id; /**< compound cookie */
+ __u64 arr_req_create; /**< req. creation time */
+ __u64 arr_req_change; /**< req. status change time */
+ struct hsm_action_item arr_hai; /**< req. to the agent */
+ struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
+} __attribute__((packed));
+
+/* Old llog gen for compatibility */
+struct llog_gen {
+ __u64 mnt_cnt;
+ __u64 conn_cnt;
+} __attribute__((packed));
+
+struct llog_gen_rec {
+ struct llog_rec_hdr lgr_hdr;
+ struct llog_gen lgr_gen;
+ __u64 padding1;
+ __u64 padding2;
+ __u64 padding3;
+ struct llog_rec_tail lgr_tail;
+};
+
+/* On-disk header structure of each log object, stored in little endian order */
+#define LLOG_CHUNK_SIZE 8192
+#define LLOG_HEADER_SIZE (96)
+#define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
+
+#define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
+
+/* flags for the logs */
+enum llog_flag {
+ LLOG_F_ZAP_WHEN_EMPTY = 0x1,
+ LLOG_F_IS_CAT = 0x2,
+ LLOG_F_IS_PLAIN = 0x4,
+};
+
+struct llog_log_hdr {
+ struct llog_rec_hdr llh_hdr;
+ __s64 llh_timestamp;
+ __u32 llh_count;
+ __u32 llh_bitmap_offset;
+ __u32 llh_size;
+ __u32 llh_flags;
+ __u32 llh_cat_idx;
+ /* for a catalog the first plain slot is next to it */
+ struct obd_uuid llh_tgtuuid;
+ __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
+ __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
+ struct llog_rec_tail llh_tail;
+} __attribute__((packed));
+
+#define LLOG_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
+ llh->llh_bitmap_offset - \
+ sizeof(llh->llh_tail)) * 8)
+
+/** log cookies are used to reference a specific log file and a record therein */
+struct llog_cookie {
+ struct llog_logid lgc_lgl;
+ __u32 lgc_subsys;
+ __u32 lgc_index;
+ __u32 lgc_padding;
+} __attribute__((packed));
+
+/** llog protocol */
+enum llogd_rpc_ops {
+ LLOG_ORIGIN_HANDLE_CREATE = 501,
+ LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
+ LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
+ LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
+ LLOG_ORIGIN_HANDLE_CLOSE = 505,
+ LLOG_ORIGIN_CONNECT = 506,
+ LLOG_CATINFO = 507, /* deprecated */
+ LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
+ LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/
+ LLOG_LAST_OPC,
+ LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
+};
+
+struct llogd_body {
+ struct llog_logid lgd_logid;
+ __u32 lgd_ctxt_idx;
+ __u32 lgd_llh_flags;
+ __u32 lgd_index;
+ __u32 lgd_saved_index;
+ __u32 lgd_len;
+ __u64 lgd_cur_offset;
+} __attribute__((packed));
+
+struct llogd_conn_body {
+ struct llog_gen lgdc_gen;
+ struct llog_logid lgdc_logid;
+ __u32 lgdc_ctxt_idx;
+} __attribute__((packed));
+
+/* Note: 64-bit types are 64-bit aligned in structure */
+struct obdo {
+ __u64 o_valid; /* hot fields in this obdo */
+ struct ost_id o_oi;
+ __u64 o_parent_seq;
+ __u64 o_size; /* o_size-o_blocks == ost_lvb */
+ __s64 o_mtime;
+ __s64 o_atime;
+ __s64 o_ctime;
+ __u64 o_blocks; /* brw: cli sent cached bytes */
+ __u64 o_grant;
+
+ /* 32-bit fields start here: keep an even number of them via padding */
+ __u32 o_blksize; /* optimal IO blocksize */
+ __u32 o_mode; /* brw: cli sent cache remain */
+ __u32 o_uid;
+ __u32 o_gid;
+ __u32 o_flags;
+ __u32 o_nlink; /* brw: checksum */
+ __u32 o_parent_oid;
+ __u32 o_misc; /* brw: o_dropped */
+
+ __u64 o_ioepoch; /* epoch in ost writes */
+ __u32 o_stripe_idx; /* holds stripe idx */
+ __u32 o_parent_ver;
+ struct lustre_handle o_handle; /* brw: lock handle to prolong
+ * locks */
+ struct llog_cookie o_lcookie; /* destroy: unlink cookie from
+ * MDS */
+ __u32 o_uid_h;
+ __u32 o_gid_h;
+
+ __u64 o_data_version; /* getattr: sum of iversion for
+ * each stripe.
+ * brw: grant space consumed on
+ * the client for the write */
+ __u64 o_padding_4;
+ __u64 o_padding_5;
+ __u64 o_padding_6;
+};
+
+#define o_dirty o_blocks
+#define o_undirty o_mode
+#define o_dropped o_misc
+#define o_cksum o_nlink
+#define o_grant_used o_data_version
+
+static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
+ struct obdo *wobdo,
+ const struct obdo *lobdo)
+{
+ *wobdo = *lobdo;
+ wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
+ if (ocd == NULL)
+ return;
+
+ if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+ fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
+ /* Currently OBD_FL_OSTID will only be used when 2.4 echo
+ * client communicate with pre-2.4 server */
+ wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
+ wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
+ }
+}
+
+static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
+ struct obdo *lobdo,
+ const struct obdo *wobdo)
+{
+ __u32 local_flags = 0;
+
+ if (lobdo->o_valid & OBD_MD_FLFLAGS)
+ local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
+
+ *lobdo = *wobdo;
+ if (local_flags != 0) {
+ lobdo->o_valid |= OBD_MD_FLFLAGS;
+ lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
+ lobdo->o_flags |= local_flags;
+ }
+ if (ocd == NULL)
+ return;
+
+ if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+ fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
+ /* see above */
+ lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
+ lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
+ lobdo->o_oi.oi_fid.f_ver = 0;
+ }
+}
+
+extern void lustre_swab_obdo (struct obdo *o);
+
+/* request structure for OST's */
+struct ost_body {
+ struct obdo oa;
+};
+
+/* Key for FIEMAP to be used in get_info calls */
+struct ll_fiemap_info_key {
+ char name[8];
+ struct obdo oa;
+ struct ll_user_fiemap fiemap;
+};
+
+extern void lustre_swab_ost_body (struct ost_body *b);
+extern void lustre_swab_ost_last_id(__u64 *id);
+extern void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
+
+extern void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
+extern void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
+extern void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
+ int stripe_count);
+extern void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
+
+/* llog_swab.c */
+extern void lustre_swab_llogd_body (struct llogd_body *d);
+extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
+extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
+extern void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
+extern void lustre_swab_llog_id(struct llog_logid *lid);
+
+struct lustre_cfg;
+extern void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg);
+
+/* Functions for dumping PTLRPC fields */
+void dump_rniobuf(struct niobuf_remote *rnb);
+void dump_ioo(struct obd_ioobj *nb);
+void dump_obdo(struct obdo *oa);
+void dump_ost_body(struct ost_body *ob);
+void dump_rcs(__u32 *rc);
+
+#define IDX_INFO_MAGIC 0x3D37CC37
+
+/* Index file transfer through the network. The server serializes the index into
+ * a byte stream which is sent to the client via a bulk transfer */
+struct idx_info {
+ __u32 ii_magic;
+
+ /* reply: see idx_info_flags below */
+ __u32 ii_flags;
+
+ /* request & reply: number of lu_idxpage (to be) transferred */
+ __u16 ii_count;
+ __u16 ii_pad0;
+
+ /* request: requested attributes passed down to the iterator API */
+ __u32 ii_attrs;
+
+ /* request & reply: index file identifier (FID) */
+ struct lu_fid ii_fid;
+
+ /* reply: version of the index file before starting to walk the index.
+ * Please note that the version can be modified at any time during the
+ * transfer */
+ __u64 ii_version;
+
+ /* request: hash to start with:
+ * reply: hash of the first entry of the first lu_idxpage and hash
+ * of the entry to read next if any */
+ __u64 ii_hash_start;
+ __u64 ii_hash_end;
+
+ /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
+ * set */
+ __u16 ii_keysize;
+
+ /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
+ * is set */
+ __u16 ii_recsize;
+
+ __u32 ii_pad1;
+ __u64 ii_pad2;
+ __u64 ii_pad3;
+};
+extern void lustre_swab_idx_info(struct idx_info *ii);
+
+#define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
+
+/* List of flags used in idx_info::ii_flags */
+enum idx_info_flags {
+ II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
+ II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
+ II_FL_VARREC = 1 << 2, /* records can be of variable size */
+ II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
+};
+
+#define LIP_MAGIC 0x8A6D6B6C
+
+/* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
+struct lu_idxpage {
+ /* 16-byte header */
+ __u32 lip_magic;
+ __u16 lip_flags;
+ __u16 lip_nr; /* number of entries in the container */
+ __u64 lip_pad0; /* additional padding for future use */
+
+ /* key/record pairs are stored in the remaining 4080 bytes.
+ * depending upon the flags in idx_info::ii_flags, each key/record
+ * pair might be preceded by:
+ * - a hash value
+ * - the key size (II_FL_VARKEY is set)
+ * - the record size (II_FL_VARREC is set)
+ *
+ * For the time being, we only support fixed-size key & record. */
+ char lip_entries[0];
+};
+extern void lustre_swab_lip_header(struct lu_idxpage *lip);
+
+#define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
+
+/* Gather all possible type associated with a 4KB container */
+union lu_page {
+ struct lu_dirpage lp_dir; /* for MDS_READPAGE */
+ struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
+ char lp_array[LU_PAGE_SIZE];
+};
+
+/* security opcodes */
+typedef enum {
+ SEC_CTX_INIT = 801,
+ SEC_CTX_INIT_CONT = 802,
+ SEC_CTX_FINI = 803,
+ SEC_LAST_OPC,
+ SEC_FIRST_OPC = SEC_CTX_INIT
+} sec_cmd_t;
+
+/*
+ * capa related definitions
+ */
+#define CAPA_HMAC_MAX_LEN 64
+#define CAPA_HMAC_KEY_MAX_LEN 56
+
+/* NB take care when changing the sequence of elements this struct,
+ * because the offset info is used in find_capa() */
+struct lustre_capa {
+ struct lu_fid lc_fid; /** fid */
+ __u64 lc_opc; /** operations allowed */
+ __u64 lc_uid; /** file owner */
+ __u64 lc_gid; /** file group */
+ __u32 lc_flags; /** HMAC algorithm & flags */
+ __u32 lc_keyid; /** key# used for the capability */
+ __u32 lc_timeout; /** capa timeout value (sec) */
+ __u32 lc_expiry; /** expiry time (sec) */
+ __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */
+} __attribute__((packed));
+
+extern void lustre_swab_lustre_capa(struct lustre_capa *c);
+
+/** lustre_capa::lc_opc */
+enum {
+ CAPA_OPC_BODY_WRITE = 1<<0, /**< write object data */
+ CAPA_OPC_BODY_READ = 1<<1, /**< read object data */
+ CAPA_OPC_INDEX_LOOKUP = 1<<2, /**< lookup object fid */
+ CAPA_OPC_INDEX_INSERT = 1<<3, /**< insert object fid */
+ CAPA_OPC_INDEX_DELETE = 1<<4, /**< delete object fid */
+ CAPA_OPC_OSS_WRITE = 1<<5, /**< write oss object data */
+ CAPA_OPC_OSS_READ = 1<<6, /**< read oss object data */
+ CAPA_OPC_OSS_TRUNC = 1<<7, /**< truncate oss object */
+ CAPA_OPC_OSS_DESTROY = 1<<8, /**< destroy oss object */
+ CAPA_OPC_META_WRITE = 1<<9, /**< write object meta data */
+ CAPA_OPC_META_READ = 1<<10, /**< read object meta data */
+};
+
+#define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
+#define CAPA_OPC_MDS_ONLY \
+ (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
+ CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
+#define CAPA_OPC_OSS_ONLY \
+ (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \
+ CAPA_OPC_OSS_DESTROY)
+#define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
+#define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
+
+/* MDS capability covers object capability for operations of body r/w
+ * (dir readpage/sendpage), index lookup/insert/delete and meta data r/w,
+ * while OSS capability only covers object capability for operations of
+ * oss data(file content) r/w/truncate.
+ */
+static inline int capa_for_mds(struct lustre_capa *c)
+{
+ return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) != 0;
+}
+
+static inline int capa_for_oss(struct lustre_capa *c)
+{
+ return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) == 0;
+}
+
+/* lustre_capa::lc_hmac_alg */
+enum {
+ CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */
+ CAPA_HMAC_ALG_MAX,
+};
+
+#define CAPA_FL_MASK 0x00ffffff
+#define CAPA_HMAC_ALG_MASK 0xff000000
+
+struct lustre_capa_key {
+ __u64 lk_seq; /**< mds# */
+ __u32 lk_keyid; /**< key# */
+ __u32 lk_padding;
+ __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */
+} __attribute__((packed));
+
+extern void lustre_swab_lustre_capa_key(struct lustre_capa_key *k);
+
+/** The link ea holds 1 \a link_ea_entry for each hardlink */
+#define LINK_EA_MAGIC 0x11EAF1DFUL
+struct link_ea_header {
+ __u32 leh_magic;
+ __u32 leh_reccount;
+ __u64 leh_len; /* total size */
+ /* future use */
+ __u32 padding1;
+ __u32 padding2;
+};
+
+/** Hardlink data is name and parent fid.
+ * Stored in this crazy struct for maximum packing and endian-neutrality
+ */
+struct link_ea_entry {
+ /** __u16 stored big-endian, unaligned */
+ unsigned char lee_reclen[2];
+ unsigned char lee_parent_fid[sizeof(struct lu_fid)];
+ char lee_name[0];
+}__attribute__((packed));
+
+/** fid2path request/reply structure */
+struct getinfo_fid2path {
+ struct lu_fid gf_fid;
+ __u64 gf_recno;
+ __u32 gf_linkno;
+ __u32 gf_pathlen;
+ char gf_path[0];
+} __attribute__((packed));
+
+void lustre_swab_fid2path (struct getinfo_fid2path *gf);
+
+enum {
+ LAYOUT_INTENT_ACCESS = 0,
+ LAYOUT_INTENT_READ = 1,
+ LAYOUT_INTENT_WRITE = 2,
+ LAYOUT_INTENT_GLIMPSE = 3,
+ LAYOUT_INTENT_TRUNC = 4,
+ LAYOUT_INTENT_RELEASE = 5,
+ LAYOUT_INTENT_RESTORE = 6
+};
+
+/* enqueue layout lock with intent */
+struct layout_intent {
+ __u32 li_opc; /* intent operation for enqueue, read, write etc */
+ __u32 li_flags;
+ __u64 li_start;
+ __u64 li_end;
+};
+
+void lustre_swab_layout_intent(struct layout_intent *li);
+
+/**
+ * On the wire version of hsm_progress structure.
+ *
+ * Contains the userspace hsm_progress and some internal fields.
+ */
+struct hsm_progress_kernel {
+ /* Field taken from struct hsm_progress */
+ lustre_fid hpk_fid;
+ __u64 hpk_cookie;
+ struct hsm_extent hpk_extent;
+ __u16 hpk_flags;
+ __u16 hpk_errval; /* positive val */
+ __u32 hpk_padding1;
+ /* Additional fields */
+ __u64 hpk_data_version;
+ __u64 hpk_padding2;
+} __attribute__((packed));
+
+extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
+extern void lustre_swab_hsm_current_action(struct hsm_current_action *action);
+extern void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
+extern void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
+extern void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
+extern void lustre_swab_hsm_request(struct hsm_request *hr);
+
+/**
+ * These are object update opcode under UPDATE_OBJ, which is currently
+ * being used by cross-ref operations between MDT.
+ *
+ * During the cross-ref operation, the Master MDT, which the client send the
+ * request to, will disassembly the operation into object updates, then OSP
+ * will send these updates to the remote MDT to be executed.
+ *
+ * Update request format
+ * magic: UPDATE_BUFFER_MAGIC_V1
+ * Count: How many updates in the req.
+ * bufs[0] : following are packets of object.
+ * update[0]:
+ * type: object_update_op, the op code of update
+ * fid: The object fid of the update.
+ * lens/bufs: other parameters of the update.
+ * update[1]:
+ * type: object_update_op, the op code of update
+ * fid: The object fid of the update.
+ * lens/bufs: other parameters of the update.
+ * ..........
+ * update[7]: type: object_update_op, the op code of update
+ * fid: The object fid of the update.
+ * lens/bufs: other parameters of the update.
+ * Current 8 maxim updates per object update request.
+ *
+ *******************************************************************
+ * update reply format:
+ *
+ * ur_version: UPDATE_REPLY_V1
+ * ur_count: The count of the reply, which is usually equal
+ * to the number of updates in the request.
+ * ur_lens: The reply lengths of each object update.
+ *
+ * replies: 1st update reply [4bytes_ret: other body]
+ * 2nd update reply [4bytes_ret: other body]
+ * .....
+ * nth update reply [4bytes_ret: other body]
+ *
+ * For each reply of the update, the format would be
+ * result(4 bytes):Other stuff
+ */
+
+#define UPDATE_MAX_OPS 10
+#define UPDATE_BUFFER_MAGIC_V1 0xBDDE0001
+#define UPDATE_BUFFER_MAGIC UPDATE_BUFFER_MAGIC_V1
+#define UPDATE_BUF_COUNT 8
+enum object_update_op {
+ OBJ_CREATE = 1,
+ OBJ_DESTROY = 2,
+ OBJ_REF_ADD = 3,
+ OBJ_REF_DEL = 4,
+ OBJ_ATTR_SET = 5,
+ OBJ_ATTR_GET = 6,
+ OBJ_XATTR_SET = 7,
+ OBJ_XATTR_GET = 8,
+ OBJ_INDEX_LOOKUP = 9,
+ OBJ_INDEX_INSERT = 10,
+ OBJ_INDEX_DELETE = 11,
+ OBJ_LAST
+};
+
+struct update {
+ __u32 u_type;
+ __u32 u_batchid;
+ struct lu_fid u_fid;
+ __u32 u_lens[UPDATE_BUF_COUNT];
+ __u32 u_bufs[0];
+};
+
+struct update_buf {
+ __u32 ub_magic;
+ __u32 ub_count;
+ __u32 ub_bufs[0];
+};
+
+#define UPDATE_REPLY_V1 0x00BD0001
+struct update_reply {
+ __u32 ur_version;
+ __u32 ur_count;
+ __u32 ur_lens[0];
+};
+
+void lustre_swab_update_buf(struct update_buf *ub);
+void lustre_swab_update_reply_buf(struct update_reply *ur);
+
+/** layout swap request structure
+ * fid1 and fid2 are in mdt_body
+ */
+struct mdc_swap_layouts {
+ __u64 msl_flags;
+} __packed;
+
+void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl);
+
+struct close_data {
+ struct lustre_handle cd_handle;
+ struct lu_fid cd_fid;
+ __u64 cd_data_version;
+ __u64 cd_reserved[8];
+};
+
+void lustre_swab_close_data(struct close_data *data);
+
+#endif
+/** @} lustreidl */
Code Review / kvmfornfv.git / blobdiff