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nest-open-source / nest-learning-thermostat / 6.0 / linux-imx-4.9.88 / f8cc81dfff00c26ff85530a8a7c19533694b47b8 / . / drivers / staging / lustre / lustre / include / lustre / lustre_idl.h
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/*
* 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.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2015, 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"
#include "../../../include/linux/lnet/types.h"
/* Defn's shared with user-space. */
#include "lustre_user.h"
#include "lustre_errno.h"
#include "../lustre_ver.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_V2 0x0BD00BD3
#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;
};
struct lu_seq_range_array {
__u32 lsra_count;
__u32 lsra_padding;
struct lu_seq_range lsra_lsr[0];
};
#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 bool fld_range_is_ost(const struct lu_seq_range *range)
{
return fld_range_type(range) == LU_SEQ_RANGE_OST;
}
static inline bool 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 bool range_within(const struct lu_seq_range *range,
__u64 s)
{
return s >= range->lsr_start && s < range->lsr_end;
}
static inline bool range_is_sane(const struct lu_seq_range *range)
{
return (range->lsr_end >= range->lsr_start);
}
static inline bool range_is_zero(const struct lu_seq_range *range)
{
return (range->lsr_start == 0 && range->lsr_end == 0);
}
static inline bool 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));
}
/* copytool uses a 32b bitmask field to encode archive-Ids during register
* with MDT thru kuc.
* archive num = 0 => all
* archive num from 1 to 32
*/
#define LL_HSM_MAX_ARCHIVE (sizeof(__u32) * 8)
/**
* 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://wiki.old.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
*/
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 bool fid_seq_is_mdt0(__u64 seq)
{
return (seq == FID_SEQ_OST_MDT0);
}
static inline bool fid_seq_is_mdt(__u64 seq)
{
return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
};
static inline bool fid_seq_is_echo(__u64 seq)
{
return (seq == FID_SEQ_ECHO);
}
static inline bool fid_is_echo(const struct lu_fid *fid)
{
return fid_seq_is_echo(fid_seq(fid));
}
static inline bool fid_seq_is_llog(__u64 seq)
{
return (seq == FID_SEQ_LLOG);
}
static inline bool 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 bool fid_seq_is_rsvd(__u64 seq)
{
return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD);
};
static inline bool fid_seq_is_special(__u64 seq)
{
return seq == FID_SEQ_SPECIAL;
};
static inline bool fid_seq_is_local_file(__u64 seq)
{
return seq == FID_SEQ_LOCAL_FILE ||
seq == FID_SEQ_LOCAL_NAME;
};
static inline bool fid_seq_is_root(__u64 seq)
{
return seq == FID_SEQ_ROOT;
}
static inline bool fid_seq_is_dot(__u64 seq)
{
return seq == FID_SEQ_DOT_LUSTRE;
}
static inline bool fid_seq_is_default(__u64 seq)
{
return seq == FID_SEQ_LOV_DEFAULT;
}
static inline bool 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 bool fid_seq_is_igif(__u64 seq)
{
return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
}
static inline bool 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 bool fid_seq_is_idif(__u64 seq)
{
return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
}
static inline bool fid_is_idif(const struct lu_fid *fid)
{
return fid_seq_is_idif(fid_seq(fid));
}
static inline bool fid_is_local_file(const struct lu_fid *fid)
{
return fid_seq_is_local_file(fid_seq(fid));
}
static inline bool fid_seq_is_norm(__u64 seq)
{
return (seq >= FID_SEQ_NORMAL);
}
static inline bool 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 (unlikely(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->oi.oi_seq))
return ostid->oi.oi_id & IDIF_OID_MASK;
if (unlikely(fid_seq_is_default(ostid->oi.oi_seq)))
return ostid->oi.oi_id;
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(oi->oi.oi_seq)) {
if (oid >= IDIF_MAX_OID) {
CERROR("Bad %llu to set " DOSTID "\n", oid, POSTID(oi));
return;
}
oi->oi.oi_id = oid;
} else if (fid_is_idif(&oi->oi_fid)) {
if (oid >= IDIF_MAX_OID) {
CERROR("Bad %llu to set "DOSTID"\n",
oid, POSTID(oi));
return;
}
oi->oi_fid.f_seq = fid_idif_seq(oid,
fid_idif_ost_idx(&oi->oi_fid));
oi->oi_fid.f_oid = oid;
oi->oi_fid.f_ver = oid >> 48;
} 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 int fid_set_id(struct lu_fid *fid, __u64 oid)
{
if (unlikely(fid_seq_is_igif(fid->f_seq))) {
CERROR("bad IGIF, "DFID"\n", PFID(fid));
return -EBADF;
}
if (fid_is_idif(fid)) {
if (oid >= IDIF_MAX_OID) {
CERROR("Too large OID %#llx to set IDIF "DFID"\n",
(unsigned long long)oid, PFID(fid));
return -EBADF;
}
fid->f_seq = fid_idif_seq(oid, fid_idif_ost_idx(fid));
fid->f_oid = oid;
fid->f_ver = oid >> 48;
} else {
if (oid >= OBIF_MAX_OID) {
CERROR("Too large OID %#llx to set REG "DFID"\n",
(unsigned long long)oid, PFID(fid));
return -EBADF;
}
fid->f_oid = oid;
}
return 0;
}
/**
* 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://wiki.old.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
*/
static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid,
__u32 ost_idx)
{
__u64 seq = ostid_seq(ostid);
if (ost_idx > 0xffff) {
CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid),
ost_idx);
return -EBADF;
}
if (fid_seq_is_mdt0(seq)) {
__u64 oid = ostid_id(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 (oid >= IDIF_MAX_OID) {
CERROR("bad MDT0 id, " DOSTID " ost_idx:%u\n",
POSTID(ostid), ost_idx);
return -EBADF;
}
fid->f_seq = fid_idif_seq(oid, ost_idx);
/* truncate to 32 bits by assignment */
fid->f_oid = oid;
/* in theory, not currently used */
fid->f_ver = oid >> 48;
} else if (likely(!fid_seq_is_default(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 bool 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);
}
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 bool fid_is_sane(const struct lu_fid *fid)
{
return fid &&
((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)));
}
void lustre_swab_lu_fid(struct lu_fid *fid);
void lustre_swab_lu_seq_range(struct lu_seq_range *range);
static inline bool 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,
};
/**
* 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 size_t lu_dirent_calc_size(size_t namelen, __u16 attr)
{
size_t size;
if (attr & LUDA_TYPE) {
const size_t 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;
}
#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_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_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_SHIFT - LU_PAGE_SHIFT))
/** @} lu_dir */
struct lustre_handle {
__u64 cookie;
};
#define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
static inline bool lustre_handle_is_used(const struct lustre_handle *lh)
{
return lh->cookie != 0ull;
}
static inline bool 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,
const 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
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[LUSTRE_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];
};
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, never used
* in production. Removed in
* 2.9. Keep this flag to
* avoid reuse.
*/
#define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Remote client by force,
* never used in production.
* Removed in 2.9. Keep this
* flag to avoid reuse
*/
#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*/
#define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack
* name in request
*/
#define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */
#define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL/* close file in unlink */
#define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL/* striped DNE dir */
/* 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))
/* 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)
/* 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.
*/
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.
*/
enum cksum_type {
OBD_CKSUM_CRC32 = 0x00000001,
OBD_CKSUM_ADLER = 0x00000002,
OBD_CKSUM_CRC32C = 0x00000004,
};
/*
* OST requests: OBDO & OBD request records
*/
/* opcodes */
enum ost_cmd {
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
};
#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 */
OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */
OBD_FL_SHORT_IO = 0x00400000, /* short io request */
/* 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,
};
/*
* All LOV EA magics should have the same postfix, if some new version
* Lustre instroduces new LOV EA magic, then when down-grade to an old
* Lustre, even though the old version system does not recognizes such
* new magic, it still can distinguish the corrupted cases by checking
* the magic's postfix.
*/
#define LOV_MAGIC_MAGIC 0x0BD0
#define LOV_MAGIC_MASK 0xFFFF
#define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC)
/* reserved for specifying OSTs */
#define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC LOV_MAGIC_V1
/*
* 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(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 void lmm_oi_set_id(struct ost_id *oi, __u64 oid)
{
oi->oi.oi_id = oid;
}
static inline __u64 lmm_oi_id(const struct ost_id *oi)
{
return oi->oi.oi_id;
}
static inline __u64 lmm_oi_seq(const struct ost_id *oi)
{
return oi->oi.oi_seq;
}
static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
const 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,
const 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_DEFAULT_LMV "trusted.dmv"
#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 + 1]; /* 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 */
/* OBD_MD_FLRMTPERM (0x0000010000000000ULL) remote perm, obsolete */
#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 */
/* OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) lfs lsetfacl, obsolete */
/* OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) lfs lgetfacl, obsolete */
/* OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) lfs rsetfacl, obsolete */
/* OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) lfs rgetfacl, obsolete */
#define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
#define OBD_MD_FLRELEASED (0x0020000000000000ULL) /* file released */
#define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
#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;
};
void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
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_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
* that the client is running low on
* space for unstable pages; asking
* it to sync quickly
*/
#define OBD_OBJECT_EOF LUSTRE_EOF
#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)
void lustre_swab_obd_ioobj(struct obd_ioobj *ioo);
/* multiple of 8 bytes => can array */
struct niobuf_remote {
__u64 rnb_offset;
__u32 rnb_len;
__u32 rnb_flags;
};
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;
};
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;
};
void lustre_swab_ost_lvb(struct ost_lvb *lvb);
/*
* lquota data structures
*/
/* 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;
};
void lustre_swab_obd_quotactl(struct obd_quotactl *q);
#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)
/* 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;
};
/* 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;
};
void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
/* op codes */
enum quota_cmd {
QUOTA_DQACQ = 601,
QUOTA_DQREL = 602,
QUOTA_LAST_OPC
};
#define QUOTA_FIRST_OPC QUOTA_DQACQ
/*
* MDS REQ RECORDS
*/
/* opcodes */
enum mds_cmd {
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, /* obsolete, never used in a release */
MDS_UNPIN = 43, /* obsolete, never used in a release */
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, /* obsolete, never used in a release */
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
};
#define MDS_FIRST_OPC MDS_GETATTR
/*
* Do not exceed 63
*/
enum mdt_reint_cmd {
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_MIGRATE = 9,
REINT_MAX
};
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
#define DISP_OPEN_DENY 0x10000000
/* 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)
/* 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) |
((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) |
((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) |
((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) |
((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 mbo_fid1;
struct lu_fid mbo_fid2;
struct lustre_handle mbo_handle;
__u64 mbo_valid;
__u64 mbo_size; /* Offset, in the case of MDS_READPAGE */
__s64 mbo_mtime;
__s64 mbo_atime;
__s64 mbo_ctime;
__u64 mbo_blocks; /* XID, in the case of MDS_READPAGE */
__u64 mbo_ioepoch;
__u64 mbo_t_state; /* transient file state defined in
* enum md_transient_state
* was "ino" until 2.4.0
*/
__u32 mbo_fsuid;
__u32 mbo_fsgid;
__u32 mbo_capability;
__u32 mbo_mode;
__u32 mbo_uid;
__u32 mbo_gid;
__u32 mbo_flags;
__u32 mbo_rdev;
__u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */
__u32 mbo_unused2; /* was "generation" until 2.4.0 */
__u32 mbo_suppgid;
__u32 mbo_eadatasize;
__u32 mbo_aclsize;
__u32 mbo_max_mdsize;
__u32 mbo_max_cookiesize;
__u32 mbo_uid_h; /* high 32-bits of uid, for FUID */
__u32 mbo_gid_h; /* high 32-bits of gid, for FUID */
__u32 mbo_padding_5; /* also fix lustre_swab_mdt_body */
__u64 mbo_padding_6;
__u64 mbo_padding_7;
__u64 mbo_padding_8;
__u64 mbo_padding_9;
__u64 mbo_padding_10;
}; /* 216 */
void lustre_swab_mdt_body(struct mdt_body *b);
struct mdt_ioepoch {
struct lustre_handle handle;
__u64 ioepoch;
__u32 flags;
__u32 padding;
};
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,
};
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;
};
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 */
#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 */
#define MDS_OPEN_FL_INTERNAL (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS | \
MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK | \
MDS_OPEN_BY_FID | MDS_OPEN_LEASE | \
MDS_OPEN_RELEASE)
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,
MDS_RENAME_MIGRATE = BIT(13),
};
/* 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 */
};
void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
/* lmv structures */
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 hash pattern */
__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;
};
/* LMV layout EA, and it will be stored both in master and slave object */
struct lmv_mds_md_v1 {
__u32 lmv_magic;
__u32 lmv_stripe_count;
__u32 lmv_master_mdt_index; /* On master object, it is master
* MDT index, on slave object, it
* is stripe index of the slave obj
*/
__u32 lmv_hash_type; /* dir stripe policy, i.e. indicate
* which hash function to be used,
* Note: only lower 16 bits is being
* used for now. Higher 16 bits will
* be used to mark the object status,
* for example migrating or dead.
*/
__u32 lmv_layout_version; /* Used for directory restriping */
__u32 lmv_padding1;
__u64 lmv_padding2;
__u64 lmv_padding3;
char lmv_pool_name[LOV_MAXPOOLNAME + 1];/* pool name */
struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */
};
#define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */
#define LMV_MAGIC LMV_MAGIC_V1
/* #define LMV_USER_MAGIC 0x0CD30CD0 */
#define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */
/*
*Right now only the lower part(0-16bits) of lmv_hash_type is being used,
* and the higher part will be the flag to indicate the status of object,
* for example the object is being migrated. And the hash function
* might be interpreted differently with different flags.
*/
#define LMV_HASH_TYPE_MASK 0x0000ffff
#define LMV_HASH_FLAG_MIGRATION 0x80000000
#define LMV_HASH_FLAG_DEAD 0x40000000
/**
* The FNV-1a hash algorithm is as follows:
* hash = FNV_offset_basis
* for each octet_of_data to be hashed
* hash = hash XOR octet_of_data
* hash = hash × FNV_prime
* return hash
* http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
*
* http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
* FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
**/
#define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
#define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size)
{
__u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
const unsigned char *p = buf;
size_t i;
for (i = 0; i < size; i++) {
hash ^= p[i];
hash *= LUSTRE_FNV_1A_64_PRIME;
}
return hash;
}
union lmv_mds_md {
__u32 lmv_magic;
struct lmv_mds_md_v1 lmv_md_v1;
struct lmv_user_md lmv_user_md;
};
void lustre_swab_lmv_mds_md(union lmv_mds_md *lmm);
static inline ssize_t lmv_mds_md_size(int stripe_count, unsigned int lmm_magic)
{
ssize_t len = -EINVAL;
switch (lmm_magic) {
case LMV_MAGIC_V1: {
struct lmv_mds_md_v1 *lmm1;
len = sizeof(*lmm1);
len += stripe_count * sizeof(lmm1->lmv_stripe_fids[0]);
break; }
default:
break;
}
return len;
}
static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm)
{
switch (le32_to_cpu(lmm->lmv_magic)) {
case LMV_MAGIC_V1:
return le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count);
case LMV_USER_MAGIC:
return le32_to_cpu(lmm->lmv_user_md.lum_stripe_count);
default:
return -EINVAL;
}
}
static inline int lmv_mds_md_stripe_count_set(union lmv_mds_md *lmm,
unsigned int stripe_count)
{
int rc = 0;
switch (le32_to_cpu(lmm->lmv_magic)) {
case LMV_MAGIC_V1:
lmm->lmv_md_v1.lmv_stripe_count = cpu_to_le32(stripe_count);
break;
case LMV_USER_MAGIC:
lmm->lmv_user_md.lum_stripe_count = cpu_to_le32(stripe_count);
break;
default:
rc = -EINVAL;
break;
}
return rc;
}
enum fld_rpc_opc {
FLD_QUERY = 900,
FLD_READ = 901,
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
};
enum fld_op {
FLD_CREATE = 0,
FLD_DELETE = 1,
FLD_LOOKUP = 2,
};
/*
* 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 */
void lustre_swab_lov_desc(struct lov_desc *ld);
/*
* LDLM requests:
*/
/* opcodes -- MUST be distinct from OST/MDS opcodes */
enum ldlm_cmd {
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
};
#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]
static inline bool ldlm_res_eq(const struct ldlm_res_id *res0,
const struct ldlm_res_id *res1)
{
return !memcmp(res0, res1, sizeof(*res0));
}
/* lock types */
enum ldlm_mode {
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
};
#define LCK_MODE_NUM 8
enum ldlm_type {
LDLM_PLAIN = 10,
LDLM_EXTENT = 11,
LDLM_FLOCK = 12,
LDLM_IBITS = 13,
LDLM_MAX_TYPE
};
#define LDLM_MIN_TYPE LDLM_PLAIN
struct ldlm_extent {
__u64 start;
__u64 end;
__u64 gid;
};
static inline int ldlm_extent_overlap(const struct ldlm_extent *ex1,
const struct ldlm_extent *ex2)
{
return (ex1->start <= ex2->end) && (ex2->start <= ex1->end);
}
/* check if @ex1 contains @ex2 */
static inline int ldlm_extent_contain(const struct ldlm_extent *ex1,
const 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;
union ldlm_gl_desc {
struct ldlm_gl_lquota_desc lquota_desc;
};
void lustre_swab_gl_desc(union ldlm_gl_desc *);
struct ldlm_intent {
__u64 opc;
};
void lustre_swab_ldlm_intent(struct ldlm_intent *i);
struct ldlm_resource_desc {
enum ldlm_type lr_type;
__u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */
struct ldlm_res_id lr_name;
};
struct ldlm_lock_desc {
struct ldlm_resource_desc l_resource;
enum ldlm_mode l_req_mode;
enum ldlm_mode l_granted_mode;
ldlm_wire_policy_data_t l_policy_data;
};
#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];
};
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;
};
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)
*/
enum mgs_cmd {
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
};
#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];
};
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;
};
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 */
};
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 */
};
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];
};
void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size);
/*
* Opcodes for multiple servers.
*/
enum obd_cmd {
OBD_PING = 400,
OBD_LOG_CANCEL,
OBD_QC_CALLBACK,
OBD_IDX_READ,
OBD_LAST_OPC
};
#define OBD_FIRST_OPC OBD_PING
/**
* llog contexts indices.
*
* There is compatibility problem with indexes below, they are not
* continuous and must keep their numbers for compatibility needs.
* See LU-5218 for details.
*/
enum llog_ctxt_id {
LLOG_CONFIG_ORIG_CTXT = 0,
LLOG_CONFIG_REPL_CTXT = 1,
LLOG_MDS_OST_ORIG_CTXT = 2,
LLOG_MDS_OST_REPL_CTXT = 3, /* kept just to avoid re-assignment */
LLOG_SIZE_ORIG_CTXT = 4,
LLOG_SIZE_REPL_CTXT = 5,
LLOG_TEST_ORIG_CTXT = 8,
LLOG_TEST_REPL_CTXT = 9, /* kept just to avoid re-assignment */
LLOG_CHANGELOG_ORIG_CTXT = 12, /**< changelog generation on mdd */
LLOG_CHANGELOG_REPL_CTXT = 13, /**< changelog access on clients */
/* for multiple changelog consumers */
LLOG_CHANGELOG_USER_ORIG_CTXT = 14,
LLOG_AGENT_ORIG_CTXT = 15, /**< agent requests generation on cdt */
LLOG_MAX_CTXTS
};
/** Identifier for a single log object */
struct llog_logid {
struct ost_id lgl_oi;
__u32 lgl_ogen;
} __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;
} __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
enum llog_op_type {
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,
};
#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;
} __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;
} __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;
} __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_valid;
struct llog_rec_tail lsr_tail;
} __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;
} __packed;
/* changelog llog name, needed by client replicators */
#define CHANGELOG_CATALOG "changelog_catalog"
struct changelog_setinfo {
__u64 cs_recno;
__u32 cs_id;
} __packed;
/** changelog record */
struct llog_changelog_rec {
struct llog_rec_hdr cr_hdr;
struct changelog_rec cr; /**< Variable length field */
struct llog_rec_tail cr_do_not_use; /**< for_sizezof_only */
} __packed;
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;
} __packed;
enum agent_req_status {
ARS_WAITING,
ARS_STARTED,
ARS_FAILED,
ARS_CANCELED,
ARS_SUCCEED,
};
static inline const char *agent_req_status2name(const 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 */
} __packed;
/* Old llog gen for compatibility */
struct llog_gen {
__u64 mnt_cnt;
__u64 conn_cnt;
} __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,
LLOG_F_EXT_JOBID = BIT(3),
LLOG_F_EXT_MASK = LLOG_F_EXT_JOBID,
};
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;
} __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;
} __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;
} __packed;
struct llogd_conn_body {
struct llog_gen lgdc_gen;
struct llog_logid lgdc_logid;
__u32 lgdc_ctxt_idx;
} __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(const struct obd_connect_data *ocd,
struct obdo *wobdo,
const struct obdo *lobdo)
{
*wobdo = *lobdo;
wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
if (!ocd)
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(const 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)
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;
}
}
/* 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;
};
void lustre_swab_ost_body(struct ost_body *b);
void lustre_swab_ost_last_id(__u64 *id);
void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
int stripe_count);
void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
/* llog_swab.c */
void lustre_swab_llogd_body(struct llogd_body *d);
void lustre_swab_llog_hdr(struct llog_log_hdr *h);
void lustre_swab_llogd_conn_body(struct llogd_conn_body *d);
void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
struct lustre_cfg;
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_ost_body(struct ost_body *ob);
void dump_rcs(__u32 *rc);
/* security opcodes */
enum sec_cmd {
SEC_CTX_INIT = 801,
SEC_CTX_INIT_CONT = 802,
SEC_CTX_FINI = 803,
SEC_LAST_OPC,
SEC_FIRST_OPC = SEC_CTX_INIT
};
/*
* 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) */
/* FIXME: y2038 time_t overflow: */
__u32 lc_expiry; /** expiry time (sec) */
__u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */
} __packed;
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)
struct lustre_capa_key {
__u64 lk_seq; /**< mds# */
__u32 lk_keyid; /**< key# */
__u32 lk_padding;
__u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */
} __packed;
/** 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];
} __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];
} __packed;
void lustre_swab_fid2path(struct getinfo_fid2path *gf);
/** path2parent request/reply structures */
struct getparent {
struct lu_fid gp_fid; /**< parent FID */
__u32 gp_linkno; /**< hardlink number */
__u32 gp_name_size; /**< size of the name field */
char gp_name[0]; /**< zero-terminated link name */
} __packed;
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 */
struct lu_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;
} __packed;
void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
void lustre_swab_hsm_current_action(struct hsm_current_action *action);
void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
void lustre_swab_hsm_request(struct hsm_request *hr);
/** 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 */