Viewing: lustre_idl.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Lustre wire protocol definitions.
*/
/*
* 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 defined in linux/types.h 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. 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).
*/
#ifndef _LUSTRE_IDL_H_
#define _LUSTRE_IDL_H_
#include <asm/byteorder.h>
#include <linux/errno.h>
#include <linux/fiemap.h>
#include <linux/types.h>
#include <linux/lnet/nidstr.h>
#include <linux/lnet/lnet-types.h>
#include <linux/lustre/lustre_user.h>
#include <linux/lustre/lustre_ver.h>
#if defined(__cplusplus)
extern "C" {
#endif
/*
* 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
*/
#define CONNMGR_REQUEST_PORTAL 1
#define CONNMGR_REPLY_PORTAL 2
#define OSC_REPLY_PORTAL 4
#define OST_IO_PORTAL 6
#define OST_CREATE_PORTAL 7
#define OST_BULK_PORTAL 8
#define MDC_REPLY_PORTAL 10
#define MDS_REQUEST_PORTAL 12
#define MDS_IO_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 MDS_SETATTR_PORTAL 22 obsolete after 2.13 */
#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
/* #define DVS_PORTAL 63 */
/* reserved for Cray DVS - spitzcor@cray.com, roe@cray.com, n8851@cray.com */
/**
* 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[];
};
#define LU_SEQ_RANGE_MDT 0x0
#define LU_SEQ_RANGE_OST 0x1
#define LU_SEQ_RANGE_ANY 0x3
#define LU_SEQ_RANGE_MASK 0x3
extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);
extern void lustre_lma_init(struct lustre_mdt_attrs *lma,
const struct lu_fid *fid,
__u32 compat, __u32 incompat);
extern void lustre_loa_swab(struct lustre_ost_attrs *loa,
bool to_cpu);
extern void lustre_loa_init(struct lustre_ost_attrs *loa,
const struct lu_fid *fid,
__u32 compat, __u32 incompat);
/* copytool can use any nonnegative integer to represent archive-Ids during
* register with MDT thru kuc.
* archive num = 0 => all
* archive num from 1 to MAX_U32
*/
#define LL_HSM_ORIGIN_MAX_ARCHIVE (sizeof(__u32) * 8)
/* the max count of archive ids that one agent can support */
#define LL_HSM_MAX_ARCHIVES_PER_AGENT 1024
/**
* HSM on-disk attributes stored in a separate xattr.
*/
struct hsm_attrs {
/** Bitfield for supported data in this structure. For future use. */
__u32 hsm_compat;
/** HSM flags, see hsm_flags enum below */
__u32 hsm_flags;
/** backend archive id associated with the file */
__u64 hsm_arch_id;
/** version associated with the last archiving, if any */
__u64 hsm_arch_ver;
};
extern void lustre_hsm_swab(struct hsm_attrs *attrs);
static inline void lov_foreign_hsm_to_cpu(struct lov_hsm_base *dst,
const struct lov_foreign_md *lfm)
{
struct lov_hsm_base *src = (struct lov_hsm_base *)lfm->lfm_value;
dst->lhb_archive_id = __le64_to_cpu(src->lhb_archive_id);
dst->lhb_archive_ver = __le64_to_cpu(src->lhb_archive_ver);
memcpy(dst->lhb_uuid, src->lhb_uuid, sizeof(dst->lhb_uuid));
}
static inline void lov_foreign_hsm_to_le(struct lov_foreign_md *lfm,
struct lov_hsm_base *src)
{
struct lov_hsm_base *dst = (struct lov_hsm_base *)lfm->lfm_value;
dst->lhb_archive_id = __cpu_to_le64(dst->lhb_archive_id);
dst->lhb_archive_ver = __cpu_to_le64(dst->lhb_archive_ver);
memcpy(dst->lhb_uuid, src->lhb_uuid, sizeof(dst->lhb_uuid));
}
/**
* fid constants
*/
enum {
/** LASTID file has zero OID */
LUSTRE_FID_LASTID_OID = 0UL,
/** initial fid id value */
LUSTRE_FID_INIT_OID = 1UL,
};
/**
* Different FID Format
* http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
*
* FID:
* File IDentifier generated by client from range allocated by the seq service.
* First 0x400 sequences [2^33, 2^33 + 0x400] are reserved for system use. Note
* that on ldiskfs MDTs that IGIF FIDs can use inode numbers starting at 12,
* but this is in the IGIF SEQ rangeand does not conflict with assigned FIDs.
*
* IGIF:
* Inode and Generation In FID, a surrogate FID used to globally identify an
* existing object on OLD formatted MDT file system. This would only be used on
* MDT0 in a DNE filesystem, because there are not expected to be any OLD
* formatted DNE filesystems. Belongs to a sequence in [12, 2^32 - 1] range,
* where sequence number is inode number, and inode generation is used as OID.
* NOTE: This assumes no more than 2^32-1 inodes exist in the MDT filesystem,
* which is the maximum possible for an ldiskfs backend. NOTE: This assumes
* that the reserved ext3/ext4/ldiskfs inode numbers [0-11] are never visible
* to clients, which has always been true.
*
* IDIF:
* Object ID in FID, a surrogate FID used to globally identify an existing
* object on OLD formatted OST file system. Belongs to a sequence in
* [2^32, 2^33 - 1]. Sequence number is calculated as:
* 1 << 32 | (ost_index << 16) | ((objid >> 32) & 0xffff)
* that is, SEQ consists of 16-bit OST index, and higher 16 bits of object ID.
* The generation of unique SEQ values per OST allows the IDIF FIDs to be
* identified in the FLD correctly. The OID field is calculated as:
* objid & 0xffffffff
* that is, it consists of lower 32 bits of object ID. NOTE This assumes that
* no more than 2^48-1 objects have ever been created on an OST, and that no
* more than 65535 OSTs are in use. Both are very reasonable assumptions (can
* uniquely map all objects on an OST that created 1M objects per second for 9
* years, or combinations thereof).
*
* OST_MDT0:
* Surrogate FID used to identify an existing object on OLD formatted OST
* filesystem. Belongs to the reserved sequence 0, and is used internally prior
* to the introduction of FID-on-OST, at which point IDIF will be used to
* identify objects as residing on a specific OST.
*
* LLOG:
* For Lustre Log objects the object sequence 1 is used. This is compatible with
* both OLD and NEW.1 namespaces, as this SEQ number is in the ext3/ldiskfs
* reserved inode range and does not conflict with IGIF sequence numbers.
*
* ECHO:
* For testing OST IO performance the object sequence 2 is used. This is
* compatible with both OLD and NEW.1 namespaces, as this SEQ number is in the
* ext3/ldiskfs reserved inode range and does not conflict with IGIF sequence
* numbers.
*
* OST_MDT1 .. OST_MAX:
* For testing with multiple MDTs the object sequence 3 through 9 is used,
* allowing direct mapping of MDTs 1 through 7 respectively, for a total of 8
* MDTs including OST_MDT0. This matches the legacy CMD project "group"
* mappings. However, this SEQ range is only for testing prior to any production
* DNE release, as the objects in this range conflict across all OSTs, as the
* OST index is not part of the FID.
*
*
* For compatibility with existing OLD OST network protocol structures, the FID
* must map onto the o_id and o_gr in a manner that ensures existing objects are
* identified consistently for IO, as well as onto the lock namespace to ensure
* both IDIFs map onto the same objects for IO as well as resources in the DLM.
*
* DLM OLD OBIF/IDIF:
* resource[] = {o_id, o_seq, 0, 0}; // o_seq == 0 for production releases
*
* DLM NEW.1 FID (this is the same for both the MDT and OST):
* resource[] = {SEQ, OID, VER, HASH};
*
* Note that for mapping IDIF values to DLM resource names the o_id may be
* larger than the 2^33 reserved sequence numbers for IDIF, so it is possible
* for the o_id numbers to overlap FID SEQ numbers in the resource. However, in
* all production releases the OLD o_seq field is always zero, and all valid FID
* OID values are non-zero, so the lock resources will not collide.
*
* For objects within the IDIF range, group extraction (non-CMD) will be:
* o_id = (fid->f_seq & 0x7fff) << 16 | fid->f_oid;
* o_seq = 0; // formerly group number
*/
/**
* 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.
*/
enum fid_seq {
FID_SEQ_OST_MDT0 = 0,
FID_SEQ_LLOG = 1, /* unnamed llogs */
FID_SEQ_ECHO = 2,
FID_SEQ_UNUSED_START = 3, /* Unused */
FID_SEQ_UNUSED_END = 9, /* Unused */
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,
/* named FIDs generated by local_object_storage library */
FID_SEQ_LOCAL_NAME = 0x200000003ULL,
/* current FLD will only cache the fid seq, instead of oid on the client
* side, if the FID needs to be exposed to clients, it needs to make
* sure all of fids under one seq 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_LAYOUT_RBTREE = 0x200000008ULL,
/* sequence is used for update logs of cross-MDT operation */
FID_SEQ_UPDATE_LOG = 0x200000009ULL,
/* DNE recovery logs in update_logs_dir */
FID_SEQ_UPDATE_LOG_DIR = 0x20000000aULL,
FID_SEQ_NORMAL = 0x200000400ULL,
FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
};
#define OBIF_OID_MAX_BITS 32
#define OBIF_MAX_OID ((1ULL << OBIF_OID_MAX_BITS) - 1)
#define IDIF_OID_MAX_BITS 48
#define IDIF_MAX_OID ((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,
FID_OID_DOT_LUSTRE_LPF = 3UL,
};
/** OID for FID_SEQ_ROOT */
enum root_oid {
FID_OID_ROOT = 1UL,
FID_OID_ECHO_ROOT = 2UL,
};
struct lu_orphan_rec {
/* The MDT-object's FID referenced by the orphan OST-object */
struct lu_fid lor_fid;
__u32 lor_uid;
__u32 lor_gid;
};
struct lu_orphan_ent {
/* The orphan OST-object's FID */
struct lu_fid loe_key;
struct lu_orphan_rec loe_rec;
};
struct lu_orphan_rec_v2 {
struct lu_orphan_rec lor_rec;
struct ost_layout lor_layout;
__u32 lor_padding;
};
struct lu_orphan_ent_v2 {
/* The orphan OST-object's FID */
struct lu_fid loe_key;
struct lu_orphan_rec_v2 loe_rec;
};
struct lu_orphan_rec_v3 {
struct lu_orphan_rec lor_rec;
struct ost_layout lor_layout;
/* The OST-object declared layout version in PFID EA.*/
__u32 lor_layout_version;
/* The OST-object declared layout range (of version) in PFID EA.*/
__u32 lor_range;
__u32 lor_padding_1;
__u64 lor_padding_2;
};
struct lu_orphan_ent_v3 {
/* The orphan OST-object's FID */
struct lu_fid loe_key;
struct lu_orphan_rec_v3 loe_rec;
};
/** @} 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,
/* for MDT internal use only, not visible to client */
/* Something in the record is unknown, to be verified in further. */
LUDA_UNKNOWN = 0x0400,
/* Ignore this record, go to next directly. */
LUDA_IGNORE = 0x0800,
/* The system is upgraded, has beed or to be repaired (dryrun). */
LUDA_UPGRADE = 0x1000,
/* The dirent has been repaired, or to be repaired (dryrun). */
LUDA_REPAIR = 0x2000,
/* Only check but not repair the dirent inconsistency */
LUDA_VERIFY_DRYRUN = 0x4000,
/* Verify the dirent consistency */
LUDA_VERIFY = 0x8000,
};
#define LU_DIRENT_ATTRS_MASK 0xff00
/**
* 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[];
};
/*
* 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;
};
struct lu_dirpage {
__u64 ldp_hash_start;
__u64 ldp_hash_end;
__u32 ldp_flags;
__u32 ldp_pad0;
struct lu_dirent ldp_entries[];
};
enum lu_dirpage_flags {
LDF_EMPTY = 1 << 0, /* dirpage contains no entry. */
LDF_COLLIDE = 1 << 1, /* last entry lde_hash == ldp_hash_end */
};
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 __kernel_size_t lu_dirent_calc_size(size_t namelen, __u16 attr)
{
__kernel_size_t size;
if (attr & LUDA_TYPE) {
const __kernel_size_t align = sizeof(struct luda_type) - 1;
size = (sizeof(struct lu_dirent) + namelen + 1 + align) &
~align;
size += sizeof(struct luda_type);
} else {
size = sizeof(struct lu_dirent) + namelen + 1;
}
return (size + 7) & ~7;
}
static inline __u16 lu_dirent_type_get(struct lu_dirent *ent)
{
__u16 type = 0;
struct luda_type *lt;
int len = 0;
if (__le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) {
const unsigned int align = sizeof(struct luda_type) - 1;
len = __le16_to_cpu(ent->lde_namelen);
len = (len + align) & ~align;
lt = (void *)ent->lde_name + len;
type = __le16_to_cpu(lt->lt_type);
}
return type;
}
#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 != 0;
}
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;
}
/* lustre_msg struct magic. DON'T use swabbed values of MAGIC as magic! */
enum lustre_msg_magic {
LUSTRE_MSG_MAGIC_V2 = 0x0BD00BD3,
LUSTRE_MSG_MAGIC_V2_SWABBED = 0xD30BD00B,
LUSTRE_MSG_MAGIC = LUSTRE_MSG_MAGIC_V2
};
/* flags for lm_flags */
enum lustre_msghdr {
MSGHDR_AT_SUPPORT = 0x1, /* lm_cksum valid early reply msg */
MSGHDR_CKSUM_INCOMPAT18 = 0x2, /* compat for 1.8, need beyond 2.8.0 */
};
#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; /* number of buffers in lm_buflens[] */
__u32 lm_secflvr; /* 0 = no crypto, or sptlrpc security flavour */
__u32 lm_magic; /* RPC version magic = LUSTRE_MSG_MAGIC_V2 */
__u32 lm_repsize; /* size of preallocated reply buffer */
__u32 lm_cksum; /* CRC32 of ptlrpc_body early reply messages */
__u32 lm_flags; /* enum lustre_msghdr MSGHDR_* flags */
__u32 lm_opc; /* SUB request opcode in a batch request */
__u32 lm_padding_3; /* unused */
/* length of additional buffers in bytes
* message buffers are packed after padded lm_buflens[] array,
* padded to a multiple of 8 bytes each to align contents.
*/
__u32 lm_buflens[];
};
/* The returned result of the SUB request in a batch request */
#define lm_result lm_opc
/* ptlrpc_body packet pb_types */
#define PTL_RPC_MSG_REQUEST 4711 /* normal RPC request message */
#define PTL_RPC_MSG_ERR 4712 /* error reply if request unprocessed */
#define PTL_RPC_MSG_REPLY 4713 /* normal RPC reply message */
/* ptlrpc_body pb_version ((target_version << 16) | rpc_version) */
enum lustre_msg_version {
PTLRPC_MSG_VERSION = 0x00000003,
LUSTRE_VERSION_MASK = 0xffff0000,
LUSTRE_OBD_VERSION = 0x00010000,
LUSTRE_MDS_VERSION = 0x00020000,
LUSTRE_OST_VERSION = 0x00030000,
LUSTRE_DLM_VERSION = 0x00040000,
LUSTRE_LOG_VERSION = 0x00050000,
LUSTRE_MGS_VERSION = 0x00060000,
};
/* pb_flags that apply to all request messages */
/* #define MSG_LAST_REPLAY 0x0001 obsolete 2.0 => {REQ,LOCK}_REPLAY_DONE */
#define MSG_RESENT 0x0002 /* was previously sent, no reply seen */
#define MSG_REPLAY 0x0004 /* was processed, got reply, recovery */
/* #define MSG_AT_SUPPORT 0x0008 obsolete since 1.5, AT always enabled */
/* #define MSG_DELAY_REPLAY 0x0010 obsolete since 2.0 */
/* #define MSG_VERSION_REPLAY 0x0020 obsolete since 1.8.2, VBR always on */
#define MSG_REQ_REPLAY_DONE 0x0040 /* request replay over, locks next */
#define MSG_LOCK_REPLAY_DONE 0x0080 /* lock replay over, client done */
#define MSG_CLIENT_BANNED 0x0100 /* client is banned by nodemap */
#define MSG_PACK_UID_GID 0x0200 /* thread UID/GID in ptlrpc_body */
#define MSG_PACK_PROJID 0x0400 /* thread PROJID in ptlrpc_body */
/* pb_op_flags for connect opcodes: MDS_CONNECT, OST_CONNECT, MGS_CONNECT */
#define MSG_CONNECT_RECOVERING 0x00000001 /* target is in recovery */
#define MSG_CONNECT_RECONNECT 0x00000002 /* tgt already has client import */
#define MSG_CONNECT_REPLAYABLE 0x00000004 /* target supports RPC replay */
/* #define MSG_CONNECT_PEER 0x00000008 obsolete since 1.2, removed in 1.5 */
#define MSG_CONNECT_LIBCLIENT 0x00000010 /* obsolete since 2.3, removed 2.6 */
#define MSG_CONNECT_INITIAL 0x00000020 /* first client connection attempt */
/* #define MSG_CONNECT_ASYNC 0x00000040 obsolete since 1.5 */
#define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
#define MSG_CONNECT_TRANSNO 0x00000100 /* client sent transno in replay */
/* number of previous object versions in pb_pre_versions[] */
#define PTLRPC_NUM_VERSIONS 4
/* without gss, ptlrpc_body is put at the first buffer. */
struct ptlrpc_body_v3 {
struct lustre_handle pb_handle;
__u32 pb_type; /* request/reply/err type: PTL_RPC_MSG_* */
__u32 pb_version; /* LUSTRE_*_VERSION | PTLRPC_MSG_VERSION */
__u32 pb_opc; /* RPC opcodes: MDS_*, OST_*, LDLM_, ... */
__u32 pb_status; /* negative Linux x86 error number */
__u64 pb_last_xid; /* highest replied XID w/o lower unreplied XID*/
__u16 pb_tag; /* multiple modifying RPCs virtual slot index */
__u16 pb_padding0;
__u32 pb_projid; /* req: inode projid, use by tbf rules */
__u64 pb_last_committed;/* rep: highest pb_transno committed to disk */
__u64 pb_transno; /* server-assigned transno for modifying RPCs */
__u32 pb_flags; /* req: MSG_* flags */
__u32 pb_op_flags; /* req: MSG_CONNECT_* flags */
__u32 pb_conn_cnt; /* connect instance of this client on server */
__u32 pb_timeout; /* req: max wait time; rep: service estimate */
__u32 pb_service_time; /* rep: server arrival to reply in seconds */
__u32 pb_limit; /* rep: dynamic DLM LRU lock count limit */
__u64 pb_slv; /* rep: dynamic DLM LRU server lock volume */
/* VBR: rep: previous pb_version(s) of objects modified by this RPC */
__u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
__u64 pb_mbits; /**< match bits for bulk request */
/* padding for future needs - fix lustre_swab_ptlrpc_body() also */
__u64 pb_padding64_0;
__u64 pb_padding64_1;
__u32 pb_uid; /* req: process uid, use by tbf rules */
__u32 pb_gid; /* req: process gid, use by tbf rules */
char pb_jobid[LUSTRE_JOBID_SIZE]; /* req: ASCII jobid from env + NUL */
};
#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; /* highest replied XID without lower unreplied XID */
__u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */
__u16 pb_padding0;
__u32 pb_projid; /* req: inode projid, use by tbf rules */
__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; /* rep: actual service time, req: net_latency */
__u32 pb_limit;
__u64 pb_slv;
/* VBR: pre-versions */
__u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
__u64 pb_mbits; /**< unused in V2 */
/* padding for future needs */
__u64 pb_padding64_0;
__u64 pb_padding64_1;
__u32 pb_uid; /* req: process uid, use by tbf rules */
__u32 pb_gid; /* req: process gid, use by tbf rules */
};
/* 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
/* Connect flags */
#define OBD_CONNECT_RDONLY 0x1ULL /* client is read-only */
#define OBD_CONNECT_INDEX 0x2ULL /* connect to LOV idx */
#define OBD_CONNECT_MDS 0x4ULL /* connect MDT to OST */
#define OBD_CONNECT_GRANT 0x8ULL /* fetch grant connect */
#define OBD_CONNECT_SRVLOCK 0x10ULL /* server lock for RPC */
#define OBD_CONNECT_VERSION 0x20ULL /* versions in OCD */
#define OBD_CONNECT_MGS_NIDLIST 0x40ULL /* MGS nidlist protocol */
#define OBD_CONNECT_ACL 0x80ULL /* access control list */
#define OBD_CONNECT_XATTR 0x100ULL /* extended attributes */
#define OBD_CONNECT_LARGE_ACL 0x200ULL /* over 32 ACL entries */
/* was OBD_CONNECT_TRUNCLOCK 0x400ULL * server locks punch */
/* temporary reuse until 2.21.53 to indicate pre-2.15 client, see LU-15478 */
#define OBD_CONNECT_OLD_FALLOC 0x400ULL /* no o_valid flags */
#define OBD_CONNECT_TRANSNO 0x800ULL /* replay send transno */
#define OBD_CONNECT_IBITS 0x1000ULL /* not checked 2.11+ */
#define OBD_CONNECT_BARRIER 0x2000ULL /* write barrier */
#define OBD_CONNECT_ATTRFID 0x4000ULL /* Server GetAttr FID */
#define OBD_CONNECT_NODEVOH 0x8000ULL /* No open handle spec */
#define OBD_CONNECT_RMT_CLIENT 0x10000ULL /* Never used, gone 2.9*/
#define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Never used, gone 2.9*/
#define OBD_CONNECT_BRW_SIZE 0x40000ULL /* Max bytes per rpc */
#define OBD_CONNECT_QUOTA64 0x80000ULL /* Unused since 2.4 */
#define OBD_CONNECT_MDS_CAPA 0x100000ULL /* Unused since 2.7 */
#define OBD_CONNECT_OSS_CAPA 0x200000ULL /* Unused since 2.7 */
#define OBD_CONNECT_CANCELSET 0x400000ULL /* Early batch cancel */
#define OBD_CONNECT_SOM 0x800000ULL /* Unused since 2.7 */
#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 /* Unused since 2.8 */
#define OBD_CONNECT_CHANGE_QS 0x10000000ULL /* Unused since 2.4 */
#define OBD_CONNECT_CKSUM 0x20000000ULL /* cksum algo choice */
#define OBD_CONNECT_FID 0x40000000ULL /* server handles FIDs */
#define OBD_CONNECT_VBR 0x80000000ULL /* version based recov */
#define OBD_CONNECT_LOV_V3 0x100000000ULL /* client LOV v3 EA */
#define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* handle grant shrink */
#define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* no orph objid reuse */
#define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* EA size in reply */
#define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
#define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client layout lock */
#define OBD_CONNECT_64BITHASH 0x4000000000ULL /* 64-bits dir hash */
#define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
#define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recov support */
#define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* ptlrpc_body jobid */
#define OBD_CONNECT_UMASK 0x40000000000ULL /* create client umask */
/* client -EINPROGRESS RPC error handling */
#define OBD_CONNECT_EINPROGRESS 0x80000000000ULL
/* extra grant params for space reservation */
#define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL
#define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* unused since 2.0 */
#define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable LVB type */
#define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosec timestamp */
#define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL /* lightweight connect */
#define OBD_CONNECT_SHORTIO 0x2000000000000ULL /* short io */
#define OBD_CONNECT_PINGLESS 0x4000000000000ULL /* pings not required */
#define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL /* flk deadlock detect */
#define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL /* create stripe disp */
#define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by FID won't pack
* name in request
*/
#define OBD_CONNECT_LFSCK 0x40000000000000ULL /* allow online LFSCK */
#define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL /* unlink closes file */
#define OBD_CONNECT_MULTIMODRPCS 0x200000000000000ULL /* allow multiple change
* RPCs in parallel
*/
#define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL /* striped DNE dir */
#define OBD_CONNECT_SUBTREE 0x800000000000000ULL /* fileset mount, deprecated since 2.17.0 */
/* was OBD_CONNECT_LOCKAHEAD_OLD 0x1000000000000000ULL old lockahead 2.12-2.13*/
#define OBD_CONNECT_BULK_MBITS 0x2000000000000000ULL /* ptlrpc_body matchbit*/
#define OBD_CONNECT_OBDOPACK 0x4000000000000000ULL /* compact OUT obdo */
#define OBD_CONNECT_FLAGS2 0x8000000000000000ULL /* second flags word */
/* ocd_connect_flags2 flags */
#define OBD_CONNECT2_FILE_SECCTX 0x1ULL /* security context */
#define OBD_CONNECT2_LOCKAHEAD 0x2ULL /* ladvise lockahead */
#define OBD_CONNECT2_DIR_MIGRATE 0x4ULL /* migrate striped dir */
#define OBD_CONNECT2_SUM_STATFS 0x8ULL /* MDT aggregate statfs*/
#define OBD_CONNECT2_OVERSTRIPING 0x10ULL /* OST overstriping */
#define OBD_CONNECT2_FLR 0x20ULL /* FLR mirror handling */
#define OBD_CONNECT2_WBC_INTENTS 0x40ULL /* MDS wb cache intent */
#define OBD_CONNECT2_LOCK_CONVERT 0x80ULL /* IBITS lock convert */
#define OBD_CONNECT2_ARCHIVE_ID_ARRAY 0x100ULL /* HSM archive_id array*/
#define OBD_CONNECT2_INC_XID 0x200ULL /* Increasing xid */
#define OBD_CONNECT2_SELINUX_POLICY 0x400ULL /* cli SELinux policy */
#define OBD_CONNECT2_LSOM 0x800ULL /* Lazy Size on MDT */
#define OBD_CONNECT2_PCC 0x1000ULL /* Persist Client Cache*/
#define OBD_CONNECT2_CRUSH 0x2000ULL /* CRUSH dir hash */
#define OBD_CONNECT2_ASYNC_DISCARD 0x4000ULL /* async DoM discard */
#define OBD_CONNECT2_ENCRYPT 0x8000ULL /* client disk encrypt */
#define OBD_CONNECT2_FIDMAP 0x10000ULL /* MDT migrate FID map */
#define OBD_CONNECT2_GETATTR_PFID 0x20000ULL /* parent FID getattr */
#define OBD_CONNECT2_LSEEK 0x40000ULL /* SEEK_HOLE/DATA RPC */
#define OBD_CONNECT2_DOM_LVB 0x80000ULL /* DoM glimpse in LVB */
#define OBD_CONNECT2_REP_MBITS 0x100000ULL /* reply mbits, not XID*/
#define OBD_CONNECT2_MODE_CONVERT 0x200000ULL /* LDLM mode convert */
#define OBD_CONNECT2_BATCH_RPC 0x400000ULL /* Multi-op batch RPCs */
#define OBD_CONNECT2_PCCRO 0x800000ULL /* PCC read-only */
#define OBD_CONNECT2_MNE_TYPE 0x1000000ULL /* mne_nid_type IPv6 */
#define OBD_CONNECT2_LOCK_CONTENTION 0x2000000ULL /* contention detect */
#define OBD_CONNECT2_ATOMIC_OPEN_LOCK 0x4000000ULL /* lock on first open */
#define OBD_CONNECT2_ENCRYPT_NAME 0x8000000ULL /* name encrypt */
/* client handle DMV inheritance */
#define OBD_CONNECT2_DMV_IMP_INHERIT 0x20000000ULL
#define OBD_CONNECT2_ENCRYPT_FID2PATH 0x40000000ULL /* fid2path enc file */
/* For MDS+OSS rolling upgrade interop with 2.16+older, ignored after 2.20.53 */
#define OBD_CONNECT2_REPLAY_CREATE 0x80000000ULL /* replay OST_CREATE */
/* understands large/IPv6 NIDs */
#define OBD_CONNECT2_LARGE_NID 0x100000000ULL
#define OBD_CONNECT2_COMPRESS 0x200000000ULL /* compressed file */
/* only ZFS servers require a change to support unaligned DIO, so this flag is
* ignored for ldiskfs servers
*/
#define OBD_CONNECT2_UNALIGNED_DIO 0x400000000ULL /* unaligned DIO */
#define OBD_CONNECT2_CONN_POLICY 0x800000000ULL /* server-side connection policy */
#define OBD_CONNECT2_SPARSE 0x1000000000ULL /* sparse LNet read */
#define OBD_CONNECT2_MIRROR_ID_FIX 0x2000000000ULL /* rr_mirror_id move */
#define OBD_CONNECT2_UPDATE_LAYOUT 0x4000000000ULL /* update compressibility */
#define OBD_CONNECT2_READDIR_OPEN 0x8000000000ULL /* read first dir page on open */
#define OBD_CONNECT2_FLR_EC 0x10000000000ULL /* parity support */
#define OBD_CONNECT2_FLR_IMMED_MIRROR 0x20000000000ULL /* client writes mirror*/
#define OBD_CONNECT2_NO_APPEND 0x40000000000ULL /* O_APPEND locking fix*/
#define OBD_CONNECT2_FLR_EC_WR 0x80000000000ULL /* write EC support */
#define OBD_CONNECT2_PERFSTATS 0x100000000000ULL /* perf stats in statfs*/
/* XXX README XXX README XXX README XXX README XXX README XXX README XXX
* Please DO NOT add OBD_CONNECT flags before first ensuring that this value
* is not in use by some other branch/patch.
* Email adilger@thelustrecollective.com and lustre-devel@lists.lustre.org
* to reserve the new OBD_CONNECT value for use by your feature. Then, submit
* a small patch against master and LTS branches that ONLY adds the new flag,
* updates obd_connect_names[], 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 by your feature (submitted separately).
*/
#define OCD_HAS_FLAG(ocd, flag) \
(!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flag))
#define OCD_HAS_FLAG2(ocd, flag2) (OCD_HAS_FLAG(ocd, FLAGS2) && \
!!((ocd)->ocd_connect_flags2 & OBD_CONNECT2_##flag2))
#ifdef HAVE_LRU_RESIZE_SUPPORT
#define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
#else
#define LRU_RESIZE_CONNECT_FLAG 0
#endif
#define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | \
OBD_CONNECT_ATTRFID | OBD_CONNECT_CANCELSET | \
OBD_CONNECT_AT | OBD_CONNECT_BRW_SIZE | \
OBD_CONNECT_MDS_MDS | OBD_CONNECT_FID | \
LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_VBR | \
OBD_CONNECT_LOV_V3 | OBD_CONNECT_FULL20 | \
OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
OBD_CONNECT_EINPROGRESS | \
OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
OBD_CONNECT_FLOCK_DEAD | \
OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK | \
OBD_CONNECT_OPEN_BY_FID | \
OBD_CONNECT_DIR_STRIPE | OBD_CONNECT_GRANT | \
OBD_CONNECT_SRVLOCK | OBD_CONNECT_BULK_MBITS |\
OBD_CONNECT_CKSUM |\
OBD_CONNECT_MULTIMODRPCS |\
OBD_CONNECT_SUBTREE | OBD_CONNECT_LARGE_ACL |\
OBD_CONNECT_GRANT_PARAM | \
OBD_CONNECT_GRANT_SHRINK | \
OBD_CONNECT_SHORTIO | OBD_CONNECT_FLAGS2)
#define MDT_CONNECT_SUPPORTED2 (OBD_CONNECT2_FILE_SECCTX | \
OBD_CONNECT2_DIR_MIGRATE | \
OBD_CONNECT2_SUM_STATFS | \
OBD_CONNECT2_OVERSTRIPING | \
OBD_CONNECT2_FLR |\
OBD_CONNECT2_LOCK_CONVERT | \
OBD_CONNECT2_ARCHIVE_ID_ARRAY | \
OBD_CONNECT2_INC_XID | \
OBD_CONNECT2_SELINUX_POLICY | \
OBD_CONNECT2_LSOM | \
OBD_CONNECT2_ASYNC_DISCARD | \
OBD_CONNECT2_PCC | \
OBD_CONNECT2_CRUSH | \
OBD_CONNECT2_ENCRYPT | \
OBD_CONNECT2_GETATTR_PFID |\
OBD_CONNECT2_LSEEK | OBD_CONNECT2_DOM_LVB |\
OBD_CONNECT2_REP_MBITS | \
OBD_CONNECT2_ATOMIC_OPEN_LOCK | \
OBD_CONNECT2_BATCH_RPC | \
OBD_CONNECT2_ENCRYPT_NAME | \
OBD_CONNECT2_ENCRYPT_FID2PATH | \
OBD_CONNECT2_DMV_IMP_INHERIT |\
OBD_CONNECT2_UNALIGNED_DIO | \
OBD_CONNECT2_PCCRO | \
OBD_CONNECT2_MIRROR_ID_FIX |\
OBD_CONNECT2_READDIR_OPEN)
#define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
OBD_CONNECT_VERSION | OBD_CONNECT_INDEX | \
OBD_CONNECT_BRW_SIZE | OBD_CONNECT_CANCELSET | \
OBD_CONNECT_AT | LRU_RESIZE_CONNECT_FLAG | \
OBD_CONNECT_CKSUM | OBD_CONNECT_VBR | \
OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 |\
OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
OBD_CONNECT_MAX_EASIZE | \
OBD_CONNECT_EINPROGRESS | \
OBD_CONNECT_JOBSTATS | \
OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK | \
OBD_CONNECT_BULK_MBITS | \
OBD_CONNECT_GRANT_PARAM | \
OBD_CONNECT_SHORTIO | OBD_CONNECT_FLAGS2)
#define OST_CONNECT_SUPPORTED2 (OBD_CONNECT2_LOCKAHEAD | OBD_CONNECT2_INC_XID |\
OBD_CONNECT2_ENCRYPT | OBD_CONNECT2_LSEEK |\
OBD_CONNECT2_REP_MBITS |\
OBD_CONNECT2_REPLAY_CREATE |\
OBD_CONNECT2_UNALIGNED_DIO)
#define ECHO_CONNECT_SUPPORTED (OBD_CONNECT_FID | OBD_CONNECT_FLAGS2)
#define ECHO_CONNECT_SUPPORTED2 OBD_CONNECT2_REP_MBITS
#define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
OBD_CONNECT_PINGLESS |\
OBD_CONNECT_BULK_MBITS | OBD_CONNECT_BARRIER | \
OBD_CONNECT_MGS_NIDLIST | \
OBD_CONNECT_FLAGS2)
#define MGS_CONNECT_SUPPORTED2 OBD_CONNECT2_REP_MBITS | \
OBD_CONNECT2_LARGE_NID
/* Features required for this version of the client to work with server */
#define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_FID | \
OBD_CONNECT_ATTRFID | \
OBD_CONNECT_FULL20)
/* INODE LOCK PARTS */
enum mds_ibits_locks {
MDS_INODELOCK_NONE = 0x000000000, /* no lock bits are used */
MDS_INODELOCK_LOOKUP = 0x000000001, /* For namespace, dentry etc Was
* used to protect permission
* (mode, owner, group, etc)
* before 2.4.
*/
MDS_INODELOCK_UPDATE = 0x000000002, /* size, links, timestamps */
MDS_INODELOCK_OPEN = 0x000000004, /* For opened files */
MDS_INODELOCK_LAYOUT = 0x000000008, /* for layout */
/* The PERM bit is added in 2.4, and is used to protect permission
* (mode, owner, group, ACL, etc.) separate from LOOKUP lock.
* For remote directories (in DNE) these locks will be granted by
* different MDTs (different LDLM namespace).
*
* For local directory, the MDT always grants UPDATE|PERM together.
* For remote directory, master MDT (where remote directory is) grants
* UPDATE|PERM, and remote MDT (where name entry is) grants LOOKUP_LOCK.
*/
MDS_INODELOCK_PERM = 0x000000010,
MDS_INODELOCK_XATTR = 0x000000020, /* non-permission extended attrs */
MDS_INODELOCK_DOM = 0x000000040, /* Data for Data-on-MDT files */
/* Do not forget to increase MDS_INODELOCK_NUMBITS when adding bits */
/* Reserve to make 64bit, not used anywhere, therefore
* MDS_INODELOCK_NUMBITS is not increased for this member
*/
MDS_INODELOCK_64BIT = 0x100000000,
};
#define MDS_INODELOCK_NUMBITS 7
/* This FULL lock is useful to take on unlink sort of operations */
#define MDS_INODELOCK_FULL ((1 << MDS_INODELOCK_NUMBITS) - 1)
/* DOM lock shouldn't be canceled early, use this macro for ELC */
#define MDS_INODELOCK_ELC (MDS_INODELOCK_FULL & ~MDS_INODELOCK_DOM)
/* 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 {
__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 */
enum mds_ibits_locks ocd_ibits_known; /* inode bits this client understands */
__u8 ocd_grant_blkbits; /* log2 of the backend filesystem blocksize */
__u8 ocd_grant_inobits; /* log2 of the per-inode space consumption */
__u16 ocd_grant_tax_kb; /* extent insertion overhead, in 1K blocks */
__u32 ocd_grant_max_blks;/* maximum number of blocks per extent */
__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.
*/
__u16 ocd_maxmodrpcs; /* Maximum modify RPCs in parallel */
__u8 ocd_conn_policy; /* bitmask for client/server to communicate about policy */
__u8 padding0; /* READ BELOW! also fix lustre_swab_connect */
__u32 padding1; /* READ BELOW! also fix lustre_swab_connect */
__u64 ocd_connect_flags2;/* OBD_CONNECT2_* per above */
__u64 ocd_compr_type; /* bitmask of supported compression types */
__u64 padding4; /* READ BELOW! also fix lustre_swab_connect */
__u64 padding5; /* READ BELOW! also fix lustre_swab_connect */
__u64 padding6; /* READ BELOW! also fix lustre_swab_connect */
__u64 padding7; /* READ BELOW! also fix lustre_swab_connect */
__u64 padding8; /* READ BELOW! also fix lustre_swab_connect */
__u64 padding9; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingA; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingB; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingC; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingD; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingE; /* READ BELOW! also fix lustre_swab_connect */
__u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
};
/* XXX README XXX README XXX README XXX README XXX README XXX README XXX
* Please DO NOT use any fields before first ensuring that this field is
* not in use by some other branch/patch. Email adilger@whamcloud.com to
* reserve the new obd_connect_data field for use by your feature. Then, submit
* a small patch against master and LTS branch that ONLY adds the new field,
* updates lustre_swab_connect(), along with the matching OBD_CONNECT flag,
* and updates wiretests accordingly,so it can be approved and landed easily
* to reserve the field for future use by your feature (submitted separately).
*/
/*
* 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 in obd_cksum.h when adding a new
* algorithm and also the OBD_FL_CKSUM* flags, OBD_CKSUM_ALL flag,
* OBD_FL_CKSUM_ALL flag and potentially OBD_CKSUM_T10_ALL flag.
*/
enum cksum_types {
OBD_CKSUM_CRC32 = 0x00000001,
OBD_CKSUM_ADLER = 0x00000002,
OBD_CKSUM_CRC32C = 0x00000004,
OBD_CKSUM_RESERVED = 0x00000008,
OBD_CKSUM_T10IP512 = 0x00000010,
OBD_CKSUM_T10IP4K = 0x00000020,
OBD_CKSUM_T10CRC512 = 0x00000040,
OBD_CKSUM_T10CRC4K = 0x00000080,
};
#define OBD_CKSUM_T10_ALL (OBD_CKSUM_T10IP512 | OBD_CKSUM_T10IP4K | \
OBD_CKSUM_T10CRC512 | OBD_CKSUM_T10CRC4K)
#define OBD_CKSUM_ALL (OBD_CKSUM_CRC32 | OBD_CKSUM_ADLER | OBD_CKSUM_CRC32C | \
OBD_CKSUM_T10_ALL)
/*
* The default checksum algorithm used on top of T10PI GRD tags for RPC.
* Considering that the checksum-of-checksums is only computing CRC32 on a
* 4KB chunk of GRD tags for a 1MB RPC for 512B sectors, or 16KB of GRD
* tags for 16MB of 4KB sectors, this is only 1/256 or 1/1024 of the
* total data being checksummed, so the checksum type used here should not
* affect overall system performance noticeably.
*/
#define OBD_CKSUM_T10_TOP OBD_CKSUM_ADLER
/*
* Explicitly define the meaning of the bits in ocd_conn_policy,
* for server-side connection policy.
*/
enum conn_policy_flags {
BYPASS_SOFT_BLOCK = 0,
CONN_POLICY_FLAGS_NUM = 8,
};
/*
* 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, /* not used since 2.4 */
OST_QUOTACTL = 19,
OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
OST_LADVISE = 21,
OST_FALLOCATE = 22,
OST_SEEK = 23,
OST_LAST_OPC /* must be < 33 to avoid MDS_GETATTR */
};
#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_PRJQUOTA = 0x00000080, /* the object's project is over
* quota
*/
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_T10IP512 = 0x00005000, /* T10PI IP cksum, 512B sector */
OBD_FL_CKSUM_T10IP4K = 0x00006000, /* T10PI IP cksum, 4KB sector */
OBD_FL_CKSUM_T10CRC512 = 0x00007000, /* T10PI CRC cksum, 512B sector */
OBD_FL_CKSUM_T10CRC4K = 0x00008000, /* T10PI CRC cksum, 4KB sector */
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 */
OBD_FL_ROOT_SQUASH = 0x00800000, /* root squash */
OBD_FL_ROOT_PRJQUOTA = 0x01000000, /* check prj quota for root */
/* OBD_FL_LOCAL_MASK = 0xF0000000, was local-only flags until 2.10 */
/*
* Note that while the original checksum values were separate bits,
* in 2.x we can actually allow all values from 1-31. T10-PI checksum
* types already use values which are not separate bits.
*/
OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
OBD_FL_CKSUM_CRC32C | OBD_FL_CKSUM_T10IP512 |
OBD_FL_CKSUM_T10IP4K | OBD_FL_CKSUM_T10CRC512 |
OBD_FL_CKSUM_T10CRC4K,
OBD_FL_NO_QUOTA_ALL = OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA |
OBD_FL_NO_PRJQUOTA,
};
/*
* 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_BAD (0x0BAD0000 | LOV_MAGIC_MAGIC)
#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
#define LOV_MAGIC_COMP_V1 (0x0BD60000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC_FOREIGN (0x0BD70000 | LOV_MAGIC_MAGIC)
#define LOV_MAGIC_SEL (0x0BD80000 | LOV_MAGIC_MAGIC)
/*
* 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
*
* those *_DEF magics are only used on server side internally, they
* won't be put on wire or disk.
*/
#define LOV_MAGIC_DEFINED 0x10000000
#define LOV_MAGIC_V1_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_V1)
#define LOV_MAGIC_V3_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_V3)
#define LOV_MAGIC_COMP_V1_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_COMP_V1)
#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 */
union {
__u32 l_ost_type; /* type of data stored in OST object */
__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; /* LOV_MAGIC_V1 */
enum lov_pattern lmm_pattern; /* LOV_PATTERN_RAID0, ... */
struct ost_id lmm_oi; /* LOV object ID */
__u32 lmm_stripe_size; /* size of stripe in bytes */
__u16 lmm_stripe_count; /* OST stripes in layout */
__u16 lmm_layout_gen; /* layout generation number */
struct lov_ost_data_v1 lmm_objects[]; /* per-stripe data */
};
#define MAX_MD_SIZE_OLD (sizeof(struct lov_mds_md) + \
4 * sizeof(struct lov_ost_data))
#define MAX_MD_SIZE (sizeof(struct lov_comp_md_v1) + \
4 * (sizeof(struct lov_comp_md_entry_v1) + \
MAX_MD_SIZE_OLD))
#define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * \
sizeof(struct lov_ost_data))
/* default MDT reply size allocated, should the striping be bigger, it will be
* reallocated in mdt_fix_reply. 100 stipes ~= 2.5KB of data.
*/
#define DEF_REP_MD_SIZE (sizeof(struct lov_mds_md) + \
100 * 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_ENCRYPTION_PREFIX "encryption."
#define XATTR_NAME_SOM "trusted.som"
#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_BITMAP "trusted.lfsck_bitmap"
#define XATTR_NAME_DUMMY "trusted.dummy"
#define XATTR_NAME_PROJID "trusted.projid"
#define XATTR_NAME_DATAVER "trusted.dataver"
#define XATTR_NAME_PIN "trusted.pin"
#define XATTR_NAME_INODEFL "trusted.inodefl"
#define LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD XATTR_SECURITY_PREFIX"c"
#define LL_XATTR_NAME_ENCRYPTION_CONTEXT XATTR_ENCRYPTION_PREFIX"c"
#define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_ns"
#define XATTR_NAME_MAX_LEN 32 /* increase this, if there is longer name. */
#define XATTR_NAME_JOB_DEFAULT "user.job"
/* longest allowed jobid xattr name is "user." + 7 chars + null terminator */
#define XATTR_JOB_MAX_LEN 13
struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
__u32 lmm_magic; /* LOV_MAGIC_V3 */
enum lov_pattern lmm_pattern; /* LOV_PATTERN_RAID0, ... */
struct ost_id lmm_oi; /* LOV object ID */
__u32 lmm_stripe_size; /* size of stripe in bytes */
__u16 lmm_stripe_count; /* OST stripes in layout */
__u16 lmm_layout_gen; /* layout generation number */
char lmm_pool_name[LOV_MAXPOOLNAME + 1];
struct lov_ost_data_v1 lmm_objects[]; /* per-stripe data */
};
static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
{
if (stripes <= LOV_ALL_STRIPES && stripes >= LOV_ALL_STRIPES_WIDE)
stripes = 0;
if (lmm_magic == LOV_MAGIC_V1)
return sizeof(struct lov_mds_md_v1) +
stripes * sizeof(struct lov_ost_data_v1);
else /* LOV_MAGIC_V3 and LOV_MAGIC_SPECIFIC */
return sizeof(struct lov_mds_md_v3) +
stripes * sizeof(struct lov_ost_data_v1);
}
static inline __u32
lov_mds_md_max_stripe_count(__kernel_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_DOM_SIZE (0x00001000ULL) /* Data-on-MDT component size */
#define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
#define OBD_MD_FLPARENT (0x00004000ULL) /* parent FID */
#define OBD_MD_LAYOUT_VERSION (0x00008000ULL) /* OST object layout version */
#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 */
/* OBD_MD_FLQOS (0x00200000ULL) has never been used */
/* OBD_MD_FLCOOKIE (0x00800000ULL) obsolete in 2.8 */
#define OBD_MD_FLPRJQUOTA (0x00400000ULL) /* over quota flags sent from ost */
#define OBD_MD_FLGROUP (0x01000000ULL) /* group */
#define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
/* OBD_MD_FLEPOCH (0x04000000ULL) obsolete 2.7.50 */
#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 */
/* OBD_MD_REINT (0x0000000200000000ULL) obsolete 1.8 */
#define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
#define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
#define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
#define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
#define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
#define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
#define OBD_MD_FLAGSTATFS (0x0000010000000000ULL) /* aggregated statfs */
/* OBD_MD_FLMDSCAPA (0x0000020000000000ULL) obsolete 2.7.54 */
/* OBD_MD_FLOSSCAPA (0x0000040000000000ULL) obsolete 2.7.54 */
/* OBD_MD_FLCKSPLIT (0x0000080000000000ULL) obsolete 2.3.58*/
#define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
#define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
* under lock; for xattr
* requests means the
* client holds the lock
*/
#define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
#define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
#define OBD_MD_CLOSE_INTENT_EXECED (0x0020000000000000ULL) /* intent executed */
#define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
#define OBD_MD_FLOSTLAYOUT (0x0080000000000000ULL) /* contain ost_layout */
#define OBD_MD_FLPROJID (0x0100000000000000ULL) /* project ID */
#define OBD_MD_SECCTX (0x0200000000000000ULL) /* embed security xattr */
#define OBD_MD_FLLAZYSIZE (0x0400000000000000ULL) /* Lazy size */
#define OBD_MD_FLLAZYBLOCKS (0x0800000000000000ULL) /* Lazy blocks */
#define OBD_MD_FLBTIME (0x1000000000000000ULL) /* birth time */
#define OBD_MD_ENCCTX (0x2000000000000000ULL) /* embed encryption ctx */
#define OBD_MD_NAMEHASH (0x4000000000000000ULL) /* use hash instead of name
* in case of encryption
*/
#define OBD_MD_FLALLQUOTA (OBD_MD_FLUSRQUOTA | \
OBD_MD_FLGRPQUOTA | \
OBD_MD_FLPRJQUOTA)
#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_FLPARENT | OBD_MD_FLRDEV | OBD_MD_FLGROUP | \
OBD_MD_FLPROJID | OBD_MD_FLBTIME)
#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;
};
/* 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_NDELAY 0x04 /* Non-delay RPC should be issued for
* this page. Non-delay RPCs have bit
* rq_no_delay set.
*/
#define OBD_BRW_SYNC 0x08 /* part of sync transfer, not in 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 */
/* OBD_BRW_NOCACHE is currently neither set nor tested */
#define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
#define OBD_BRW_NOQUOTA 0x100 /* do not enforce quota */
#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 /* flag notifies server that client is
* running low on space for unstable
* pages; asking it to sync quickly
*/
#define OBD_BRW_OVER_PRJQUOTA 0x8000 /* Running out of project quota */
#define OBD_BRW_ROOT_PRJQUOTA 0x10000 /* check project quota for root */
#define OBD_BRW_RDMA_ONLY 0x20000 /* RPC contains RDMA-only pages*/
#define OBD_BRW_SYS_RESOURCE 0x40000 /* page has CAP_SYS_RESOURCE */
#define OBD_BRW_COMPRESSED 0x80000 /* data compressed on client */
/* client compressed data optimistically but server must check file size */
#define OBD_BRW_SPECULATIVE_COMPR 0x100000
#define OBD_BRW_OVER_ALLQUOTA (OBD_BRW_OVER_USRQUOTA | \
OBD_BRW_OVER_GRPQUOTA | \
OBD_BRW_OVER_PRJQUOTA)
#define OBD_BRW_DONE 0x40000000UL /*
* osd-ldiskfs inernal,
* IO has been issued before
*/
#define OBD_BRW_LOCAL1 0x80000000UL /*
* osd-ldiskfs internal,
* page mapped to real block
*/
#define OBD_BRW_LOCALS (OBD_BRW_LOCAL1 | OBD_BRW_DONE)
#define OBD_MAX_GRANT 0x7fffffffUL /* Max grant allowed to one client: 2 GiB */
#define OBD_OBJECT_EOF LUSTRE_EOF
#define OST_MIN_PRECREATE 32
#define OST_MAX_PRECREATE 20000
struct obd_ioobj {
/* object ID, if multi-obj BRW */
struct ost_id ioo_oid;
/* low 16 bits were o_mode before 2.4, now (PTLRPC_BULK_OPS_LIMIT - 1)
* in high 16 bits in 2.4 and later.
* With OBD_CONNECT2_UNALIGNED_DIO udio uses low 4 bits for offset
*/
__u32 ioo_max_brw;
/* number of niobufs for this object */
__u32 ioo_bufcnt;
};
/* NOTE: IOOBJ_MAX_BRW_BITS defines the _offset_ of the max_brw field in
* ioo_max_brw, NOT the maximum number of bits in PTLRPC_BULK_OPS_BITS.
* That said, ioo_max_brw is a 32-bit field so the limit is also 16 bits.
*/
#define IOOBJ_MAX_BRW_BITS 16
#define IOOBJ_OFFSET_BITS 4
#define IOOBJ_OFFSET_MASK ((1u << IOOBJ_OFFSET_BITS) - 1)
#define ioobj_page_interop_offset(ioo) ((ioo)->ioo_max_brw & IOOBJ_OFFSET_MASK)
#define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
#define ioobj_max_brw_set(ioo, num, offset) \
do { \
(ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; \
(ioo)->ioo_max_brw |= (offset) & IOOBJ_OFFSET_MASK; \
} while (0)
/* multiple of 8 bytes => can array */
struct niobuf_remote {
__u64 rnb_offset;
__u32 rnb_len;
__u32 rnb_flags;
};
/* 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) blocks = OST_LVB_ERR_INIT + rc
#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;
};
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;
};
/*
* 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 */
__u64 qid_projid; /* project 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;
char qc_poolname[];
};
#define qc_lqaname qc_poolname
#define qc_iter_md_offset qc_dqblk.dqb_bhardlimit
#define qc_iter_dt_offset qc_dqblk.dqb_ihardlimit
#define qc_iter_md_buflen qc_dqblk.dqb_bsoftlimit
#define qc_iter_dt_buflen qc_dqblk.dqb_isoftlimit
#define qc_iter_list qc_dqblk.dqb_curspace
#define qc_iter_qid_start qc_dqblk.dqb_curinodes
#define qc_iter_qid_end qc_dqblk.dqb_btime
#define Q_COPY(out, in, member) (out)->member = (in)->member
#define QCTL_COPY_NO_PNAME(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)
/* NOTE:
* - in and out maybe a type of struct if_quotactl or struct obd_quotactl
* - in and out need not be of the same type.
*/
#define QCTL_COPY(out, in) \
do { \
QCTL_COPY_NO_PNAME(out, in); \
if (LUSTRE_Q_CMD_IS_POOL(in->qc_cmd) || \
LUSTRE_Q_CMD_IS_LQA(in->qc_cmd)) { \
size_t len = strnlen(in->qc_poolname, LOV_MAXPOOLNAME); \
\
BUILD_BUG_ON(LQA_NAME_MAX != LOV_MAXPOOLNAME); \
memcpy(out->qc_poolname, in->qc_poolname, len); \
out->qc_poolname[len] = '\0'; \
} \
} while (0)
/* Body of quota request used for quota acquire/release RPCs between quota
* master (aka QMT) and slaves (ak QSD).
*/
struct quota_body {
struct lu_fid qb_fid; /* FID of global index packing the pool ID
* and type (data or metadata) as well as
* the quota type (user or group).
*/
union lquota_id qb_id; /* uid or gid or directory FID */
__u32 qb_flags; /* see below */
__u32 qb_padding;
__u64 qb_count; /* acquire/release count (kbytes/inodes) */
__u64 qb_usage; /* current slave usage (kbytes/inodes) */
__u64 qb_slv_ver; /* slave index file version */
struct lustre_handle qb_lockh; /* per-ID lock handle */
struct lustre_handle qb_glb_lockh; /* global lock handle */
__u64 qb_glb_ver; /* global index file version */
__u64 qb_padding1[3];
};
/* When the quota_body is used in the reply of quota global intent
* lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID.
*/
#define qb_slv_fid qb_fid
/* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
* quota reply
*/
#define qb_qunit qb_usage
#define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
#define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
#define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
#define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
/* Quota types currently supported */
enum lquota_type {
LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
LQUOTA_TYPE_PRJ = 0x02, /* maps to PRJQUOTA */
LQUOTA_TYPE_MAX
};
/* There are 2 different resource types on which a quota limit can be enforced:
* - inodes on the MDTs
* - blocks on the OSTs
*/
enum lquota_res_type {
LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
LQUOTA_RES_DT = 0x02,
LQUOTA_LAST_RES,
LQUOTA_FIRST_RES = LQUOTA_RES_MD
};
#define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
/*
* Space accounting support
* Format of an accounting record, providing disk usage information for a given
* user or group
*/
struct lquota_acct_rec { /* 16 bytes */
__u64 bspace; /* current space in use */
__u64 ispace; /* current # inodes in use */
};
/*
* Global quota index support
* Format of a global record, providing global quota settings for a given quota
* identifier
*/
struct lquota_glb_rec { /* 32 bytes */
__u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
__u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
__u64 qbr_time; /* grace time, in seconds */
__u64 qbr_granted; /* amount granted to slaves (inodes or KiB) */
};
/*
* Slave index support
* Format of a slave record, recording how much space is granted to a given
* slave
*/
struct lquota_slv_rec { /* 8 bytes */
__u64 qsr_granted; /* space granted to the slave for the key=ID,
* in #inodes or kbytes
*/
};
/* Data structures associated with the quota locks */
/* Glimpse descriptor used for the index & per-ID quota locks */
struct ldlm_gl_lquota_desc {
union lquota_id gl_id; /* quota ID subject to the glimpse */
__u64 gl_flags; /* see LQUOTA_FL* below */
__u64 gl_ver; /* new index version */
__u64 gl_hardlimit; /* new hardlimit or qunit value */
__u64 gl_softlimit; /* new softlimit */
__u64 gl_time;
__u64 gl_pad2;
};
#define gl_qunit gl_hardlimit /* current qunit value used when
* glimpsing per-ID quota locks
*/
/* quota glimpse flags */
#define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
/* LVB used with quota (global and per-ID) locks */
struct lquota_lvb {
__u64 lvb_flags; /* see LQUOTA_FL* above */
__u64 lvb_id_may_rel; /* space that might be released later */
__u64 lvb_id_rel; /* space released by the slave for this ID */
__u64 lvb_id_qunit; /* current qunit value */
__u64 lvb_pad1;
};
/* LVB used with global quota lock */
#define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
/* 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_GET_ROOT = 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, /* obsolete since 2.8.0 */
MDS_SET_INFO = 46,
MDS_QUOTACHECK = 47, /* not used since 2.4 */
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_RMFID = 62,
MDS_BATCH = 63,
MDS_HSM_DATA_VERSION = 64,
MDS_LAST_OPC
};
#define MDS_FIRST_OPC MDS_GETATTR
/* opcodes for object update */
enum update_cmd {
OUT_UPDATE = 1000,
OUT_UPDATE_LAST_OPC
};
#define OUT_UPDATE_FIRST_OPC OUT_UPDATE
/*
* Do not exceed 63
*/
enum mds_reint_op {
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_RESYNC = 10,
REINT_MAX
};
/* 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
/* 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
enum {
/* these should be identical to their EXT4_*_FL counterparts, they are
* redefined here only to avoid dragging in fs/ext4/ext4.h
*/
LUSTRE_UNRM_FL = 0x00000002, /* Undelete */
LUSTRE_COMPR_FL = 0x00000004, /* Compress file */
LUSTRE_SYNC_FL = 0x00000008, /* Synchronous updates */
LUSTRE_IMMUTABLE_FL = 0x00000010, /* Immutable file */
LUSTRE_APPEND_FL = 0x00000020, /* file writes may only append */
LUSTRE_NODUMP_FL = 0x00000040, /* do not dump file */
LUSTRE_NOATIME_FL = 0x00000080, /* do not update atime */
LUSTRE_NOCOMPR_FL = 0x00000400, /* Don't compress */
COMPAT_ENCRYPT_FL = 0x00000800, /* filter out FS_ENCRYPT_FL */
LUSTRE_INDEX_FL = 0x00001000, /* hash-indexed directory */
LUSTRE_EXTENTS_FL = 0x00080000, /* Inode uses extents */
LUSTRE_JOURNAL_DATA_FL = 0x00004000, /* file should be journaled */
LUSTRE_DIRSYNC_FL = 0x00010000, /* dirsync behaviour (dir only) */
LUSTRE_TOPDIR_FL = 0x00020000, /* Top of directory hierarchies*/
LUSTRE_VERITY_FL = 0x00100000, /* Verity protected inode */
LUSTRE_INLINE_DATA_FL = 0x10000000, /* Inode has inline data. */
LUSTRE_PROJINHERIT_FL = 0x20000000, /* Create with parents projid */
LUSTRE_CASEFOLD_FL = 0x40000000, /* Casefolded directory */
/* These flags will not be identical to any EXT4_*_FL counterparts,
* and only reserved for lustre purpose. Note: these flags might
* be conflict with some of EXT4 flags, so
* 1. these conflict flags needs to be removed when the flag is
* wired by la_flags see osd_attr_get().
* 2. If these flags needs to be stored into inode, they will be
* stored in LMA. see LMAI_XXXX
*/
LUSTRE_ORPHAN_FL = 0x00002000,
LUSTRE_SET_SYNC_FL = 0x00040000, /* Synchronous setattr on OSTs */
LUSTRE_ENCRYPT_FL = 0x00800000, /* encrypted file */
LUSTRE_LMA_FL_MASKS = LUSTRE_ENCRYPT_FL | LUSTRE_ORPHAN_FL,
};
#define LUSTRE_FL_USER_MODIFIABLE (LUSTRE_SYNC_FL | \
LUSTRE_IMMUTABLE_FL | \
LUSTRE_APPEND_FL | \
LUSTRE_NODUMP_FL | \
LUSTRE_NOATIME_FL | \
LUSTRE_NOCOMPR_FL | \
LUSTRE_NOATIME_FL | \
LUSTRE_DIRSYNC_FL | \
LUSTRE_TOPDIR_FL | \
LUSTRE_PROJINHERIT_FL)
#define LUSTRE_FL_USER_VISIBLE (LUSTRE_FL_USER_MODIFIABLE | \
LUSTRE_UNRM_FL | \
COMPAT_ENCRYPT_FL | \
LUSTRE_COMPR_FL | \
LUSTRE_NOCOMPR_FL | \
LUSTRE_ENCRYPT_FL | \
LUSTRE_INDEX_FL | \
LUSTRE_JOURNAL_DATA_FL | \
LUSTRE_EXTENTS_FL | \
LUSTRE_VERITY_FL | \
LUSTRE_INLINE_DATA_FL | \
LUSTRE_CASEFOLD_FL)
#ifndef FS_XFLAG_SYNC
#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
#endif
#ifndef FS_XFLAG_NOATIME
#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
#endif
#ifndef FS_XFLAG_IMMUTABLE
#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
#endif
#ifndef FS_XFLAG_APPEND
#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
#endif
#ifndef FS_XFLAG_PROJINHERIT
#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
#endif
/* 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_open_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_version; /* was mbo_ioepoch before 2.11 */
__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; /* most replies: LUSTRE_*_FL file attributes,
* data_version: OBD_FL_* flags
*/
__u32 mbo_rdev;
__u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */
__u32 mbo_layout_gen; /* was "generation" until 2.4.0 */
__u32 mbo_suppgid;
__u32 mbo_eadatasize;
__u32 mbo_aclsize;
__u32 mbo_max_mdsize;
__u32 mbo_unused3; /* was max_cookiesize until 2.8 */
__u32 mbo_uid_h; /* high 32-bits of uid, for FUID */
__u32 mbo_gid_h; /* high 32-bits of gid, for FUID */
__u32 mbo_projid;
__u64 mbo_dom_size; /* size of DOM component */
__u64 mbo_dom_blocks; /* blocks consumed by DOM component */
__u64 mbo_btime;
__u64 mbo_padding_9; /* also fix lustre_swab_mdt_body */
__u64 mbo_padding_10;
}; /* 216 */
struct mdt_ioepoch {
struct lustre_handle mio_open_handle;
__u64 mio_unused1; /* was ioepoch */
__u32 mio_unused2; /* was flags */
__u32 mio_padding;
};
/* 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_padding_1_h;
__u32 sa_fsgid;
__u32 sa_padding_2_h;
__u32 sa_suppgid;
__u32 sa_padding_3_h;
__u32 sa_padding_1;
__u32 sa_padding_2;
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_projid;
__u32 sa_padding_4;
__u32 sa_padding_5;
};
/*
* 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.
*/
enum mds_attr_flags {
MDS_ATTR_MODE = 0x1ULL, /* = 1 */
MDS_ATTR_UID = 0x2ULL, /* = 2 */
MDS_ATTR_GID = 0x4ULL, /* = 4 */
MDS_ATTR_SIZE = 0x8ULL, /* = 8 */
MDS_ATTR_ATIME = 0x10ULL, /* = 16 */
MDS_ATTR_MTIME = 0x20ULL, /* = 32 */
MDS_ATTR_CTIME = 0x40ULL, /* = 64 */
MDS_ATTR_ATIME_SET = 0x80ULL, /* = 128 */
MDS_ATTR_MTIME_SET = 0x100ULL, /* = 256 */
MDS_ATTR_FORCE = 0x200ULL, /* = 512, change it */
MDS_ATTR_ATTR_FLAG = 0x400ULL, /* = 1024 */
MDS_ATTR_KILL_SUID = 0x800ULL, /* = 2048 */
MDS_ATTR_KILL_SGID = 0x1000ULL, /* = 4096 */
MDS_ATTR_CTIME_SET = 0x2000ULL, /* = 8192 */
MDS_ATTR_FROM_OPEN = 0x4000ULL, /* = 16384, from open O_TRUNC */
MDS_ATTR_BLOCKS = 0x8000ULL, /* = 32768 */
MDS_ATTR_PROJID = 0x10000ULL, /* = 65536 */
MDS_ATTR_LSIZE = 0x20000ULL, /* = 131072 */
MDS_ATTR_LBLOCKS = 0x40000ULL, /* = 262144 */
MDS_ATTR_OVERRIDE = 0x2000000ULL, /* = 33554432 */
};
enum mds_op_bias {
/* MDS_CHECK_SPLIT = 1 << 0, obsolete before 2.3.58 */
/* used for remote object getattr/open by name: in the original
* getattr/open request, MDT found the object against name is on another
* MDT, then packed FID and LOOKUP lock in reply and returned -EREMOTE,
* and client knew it's a remote object, then set this flag in
* getattr/open request and sent to the corresponding MDT to finish
* getattr/open, which fetched attributes and UPDATE lock/opened file.
*/
MDS_CROSS_REF = 1 << 1,
/* MDS_VTX_BYPASS = 1 << 2, obsolete since 2.3.54 */
MDS_PERM_BYPASS = 1 << 3,
/* MDS_SOM = 1 << 4, obsolete since 2.8.0 */
MDS_QUOTA_IGNORE = 1 << 5,
/* MDS_CLOSE_CLEANUP = 1 << 6, obsolete since 2.3.51 */
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_CLOSE_MIGRATE = 1 << 13,
MDS_CLOSE_LAYOUT_SWAP = 1 << 14,
MDS_CLOSE_LAYOUT_MERGE = 1 << 15,
MDS_CLOSE_RESYNC_DONE = 1 << 16,
MDS_CLOSE_LAYOUT_SPLIT = 1 << 17,
MDS_TRUNC_KEEP_LEASE = 1 << 18,
MDS_PCC_ATTACH = 1 << 19,
MDS_CLOSE_UPDATE_TIMES = 1 << 20,
/* setstripe create only, don't restripe if target exists */
MDS_SETSTRIPE_CREATE = 1 << 21,
MDS_FID_OP = 1 << 22,
/* migrate dirent only */
MDS_MIGRATE_NSONLY = 1 << 23,
/* create with default LMV from client */
MDS_CREATE_DEFAULT_LMV = 1 << 24,
/* Compat flag with clients that do not send old and new data version
* after swap layout */
MDS_CLOSE_LAYOUT_SWAP_HSM = 1 << 25,
/* rename must retry again with target ACLs */
MDS_RENAME_AGAIN = 1 << 26,
MDS_NAMEHASH = 1 << 27,
};
#define MDS_CLOSE_INTENT (MDS_HSM_RELEASE | MDS_CLOSE_LAYOUT_SWAP | \
MDS_CLOSE_LAYOUT_MERGE | MDS_CLOSE_LAYOUT_SPLIT | \
MDS_CLOSE_RESYNC_DONE)
/* instance of mdt_reint_rec */
struct mdt_rec_create {
__u32 cr_opcode;
__u32 cr_cap;
__u32 cr_fsuid;
__u32 cr_layout_ver; /* parent dir layout version */
__u32 cr_fsgid;
__u32 cr_padding_2_h;
__u32 cr_suppgid1;
__u32 cr_padding_3_h;
__u32 cr_suppgid2;
__u32 cr_padding_4_h;
struct lu_fid cr_fid1;
struct lu_fid cr_fid2;
struct lustre_handle cr_open_handle_old; /* in case of open replay */
__s64 cr_time;
union {
__u64 cr_rdev;
__u32 cr_archive_id;
};
__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]
*/
__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 */
};
/* instance of mdt_reint_rec */
struct mdt_rec_link {
__u32 lk_opcode;
__u32 lk_cap;
__u32 lk_fsuid;
__u32 lk_padding_1_h;
__u32 lk_fsgid;
__u32 lk_padding_2_h;
__u32 lk_suppgid1;
__u32 lk_padding_3_h;
__u32 lk_suppgid2;
__u32 lk_padding_4_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_padding_1_h;
__u32 ul_fsgid;
__u32 ul_padding_2_h;
__u32 ul_suppgid1;
__u32 ul_padding_3_h;
__u32 ul_suppgid2;
__u32 ul_padding_4_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_padding_1_h;
__u32 rn_fsgid;
__u32 rn_padding_2_h;
__u32 rn_suppgid1;
__u32 rn_padding_3_h;
__u32 rn_suppgid2;
__u32 rn_padding_4_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_padding_1_h;
__u32 sx_fsgid;
__u32 sx_padding_2_h;
__u32 sx_suppgid1;
__u32 sx_padding_3_h;
__u32 sx_suppgid2;
__u32 sx_padding_4_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 */
};
/* instance of mdt_reint_rec. FLR: for file resync MDS_REINT_RESYNC RPC. */
struct mdt_rec_resync {
__u32 rs_opcode;
__u32 rs_cap;
__u32 rs_fsuid;
__u32 rs_padding_1_h;
__u32 rs_fsgid;
__u32 rs_padding_2_h;
__u32 rs_suppgid1;
__u32 rs_padding_3_h;
__u32 rs_suppgid2;
__u32 rs_padding_4_h;
struct lu_fid rs_fid;
__u8 rs_padding0[sizeof(struct lu_fid)];
struct lustre_handle rs_lease_handle; /* rr_mtime */
__s64 rs_padding1; /* rr_atime */
__s64 rs_padding2; /* rr_ctime */
__u64 rs_padding3; /* rr_size */
__u64 rs_padding4; /* rr_blocks */
__u32 rs_bias;
__u32 rs_padding5; /* rr_mode */
__u32 rs_padding6; /* rr_flags */
__u32 rs_padding7; /* rr_flags_h */
/* The rr_mirror_id_old field used the last reserved field
* in mdt_rec_reint but is not used for any other reint type.
* There are lots of unused fields in this strict that could be
* used instead, so rr_umask was chosen for rs_mirror_id_new
* since it is unlikely that a file resync operation will ever
* need it. The other unused fields could potentially be needed
* eventually (timestamps or size/blocks) so they were not used.
*/
__u32 rs_mirror_id_new; /* rr_umask */
__u16 rs_mirror_id_old; /* deprecated 2.16.0 */
__u16 rs_padding9; /* 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 structres 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_padding_1_h;
__u32 rr_fsgid;
__u32 rr_padding_2_h;
__u32 rr_suppgid1;
__u32 rr_padding_3_h;
__u32 rr_suppgid2;
__u32 rr_padding_4_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;
__u16 rr_mirror_id_old; /* deprecated 2.16.0 */
__u16 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
};
#define rr_mirror_id_new rr_umask
#define LMV_DESC_QOS_MAXAGE_DEFAULT 60 /* Seconds */
/* 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; /* increased each time layout changed,
* by directory migration, restripe
* and LFSCK.
*/
__u32 lmv_migrate_offset; /* once this is set, it means this
* directory is been migrated, stripes
* before this offset belong to target,
* from this to source.
*/
__u32 lmv_migrate_hash; /* hash type of source stripes of
* migrating directory
*/
__u32 lmv_padding2;
__u64 lmv_padding3;
char lmv_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
struct lu_fid lmv_stripe_fids[]; /* FIDs for each stripe */
};
/* stripe count before directory split */
#define lmv_split_offset lmv_migrate_offset
/* stripe count after directory merge */
#define lmv_merge_offset lmv_migrate_offset
/* directory hash type after merge */
#define lmv_merge_hash lmv_migrate_hash
/* foreign LMV EA */
struct lmv_foreign_md {
__u32 lfm_magic; /* magic number = LMV_MAGIC_FOREIGN */
__u32 lfm_length; /* length of lfm_value */
__u32 lfm_type; /* type, see LU_FOREIGN_TYPE_ */
__u32 lfm_flags; /* flags, type specific */
char lfm_value[]; /* free format value */
};
#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 */
#define LMV_MAGIC_FOREIGN 0x0CD50CD0 /* magic for lmv foreign */
/**
* 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, __kernel_size_t size)
{
__u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
const unsigned char *p = buf;
__kernel_size_t i;
for (i = 0; i < size; i++) {
hash ^= p[i];
hash *= LUSTRE_FNV_1A_64_PRIME;
}
return hash;
}
/* CRUSH placement group count */
#define LMV_CRUSH_PG_COUNT 4096
union lmv_mds_md {
__u32 lmv_magic;
struct lmv_mds_md_v1 lmv_md_v1;
struct lmv_user_md lmv_user_md;
struct lmv_foreign_md lmv_foreign_md;
};
static inline __kernel_ssize_t lmv_mds_md_size(int stripe_count,
unsigned int lmm_magic)
{
__kernel_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_hash_type_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_hash_type);
case LMV_USER_MAGIC:
return __le32_to_cpu(lmm->lmv_user_md.lum_hash_type);
default:
return -EINVAL;
}
}
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,
};
/* LFSCK opcodes */
enum lfsck_cmd {
LFSCK_NOTIFY = 1101,
LFSCK_QUERY = 1102,
LFSCK_LAST_OPC,
LFSCK_FIRST_OPC = LFSCK_NOTIFY
};
/*
* 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 (4 << 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 */
__s32 ld_default_stripe_count; /* how many objects are used */
enum lov_pattern ld_pattern; /* default LOV_PATTERN_RAID0 */
__u64 ld_default_stripe_size; /* in bytes */
__s64 ld_default_stripe_offset; /* starting OST index */
__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 */
/*
* 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) (unsigned long long)(res)->lr_name.name[0], \
(unsigned long long)(res)->lr_name.name[1], \
(unsigned long long)(res)->lr_name.name[2], \
(unsigned long long)(res)->lr_name.name[3]
/* lock types */
enum ldlm_mode {
LCK_MODE_MIN = 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_TXN = 256,
LCK_MODE_END
};
#define LCK_MINMODE LCK_MODE_MIN /* deprecated since 2.16.0 */
#define LCK_MAXMODE LCK_MODE_MAX /* deprecated since 2.16.0 */
#define LCK_MODE_NUM 9
enum ldlm_type {
LDLM_PLAIN = 10,
LDLM_EXTENT = 11,
LDLM_FLOCK = 12,
LDLM_IBITS = 13,
LDLM_TYPE_END,
LDLM_TYPE_MIN = LDLM_PLAIN
};
#define LDLM_TYPE_MAX LDLM_TYPE_END /* deprecated since 2.16.0 */
struct ldlm_extent {
__u64 start;
__u64 end;
__u64 gid;
};
static inline bool ldlm_extent_equal(const struct ldlm_extent *ex1,
const struct ldlm_extent *ex2)
{
return ex1->start == ex2->start && ex1->end == ex2->end;
}
struct ldlm_inodebits {
enum mds_ibits_locks bits;
union {
enum mds_ibits_locks try_bits; /* optional bits to try */
enum mds_ibits_locks cancel_bits; /* for lock convert */
};
__u64 li_gid;
__u32 li_padding;
__u32 li_initiator_id; /* index of MDT that initiated this lock */
};
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.
*/
union ldlm_wire_policy_data {
struct ldlm_extent l_extent;
struct ldlm_flock_wire l_flock;
struct ldlm_inodebits l_inodebits;
};
struct barrier_lvb {
__u32 lvb_status;
__u32 lvb_index;
__u64 lvb_padding;
};
struct ldlm_gl_barrier_desc {
__u32 lgbd_status;
__u32 lgbd_timeout;
__u64 lgbd_padding;
};
union ldlm_gl_desc {
struct ldlm_gl_lquota_desc lquota_desc;
struct ldlm_gl_barrier_desc barrier_desc;
};
enum ldlm_intent_flags {
IT_OPEN = 0x00000001,
IT_CREAT = 0x00000002,
IT_OPEN_CREAT = IT_OPEN | IT_CREAT, /* To allow case label. */
IT_READDIR = 0x00000004, /* Used by mdc, not put on the wire. */
IT_GETATTR = 0x00000008,
IT_LOOKUP = 0x00000010,
/* IT_UNLINK = 0x00000020, Obsolete. */
/* IT_TRUNC = 0x00000040, Obsolete. */
IT_GETXATTR = 0x00000080,
/* IT_EXEC = 0x00000100, Obsolete. */
/* IT_PIN = 0x00000200, Obsolete. */
IT_LAYOUT = 0x00000400,
IT_QUOTA_DQACQ = 0x00000800,
IT_QUOTA_CONN = 0x00001000,
/* IT_SETXATTR = 0x00002000, Obsolete. */
IT_GLIMPSE = 0x00004000,
IT_BRW = 0x00008000,
};
struct ldlm_intent {
__u64 opc;
};
struct ldlm_resource_desc {
enum ldlm_type lr_type;
__u32 lr_pad; /* 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;
union ldlm_wire_policy_data l_policy_data;
};
#define LDLM_LOCKREQ_HANDLES 2
#define LDLM_ENQUEUE_CANCEL_OFF 1
struct ldlm_request {
__u32 lock_flags; /* LDLM_FL_*,(lustre_dlm_flags.h) */
__u32 lock_count; /* Num of locks in lock_handle[] */
struct ldlm_lock_desc lock_desc; /* lock descriptor */
struct lustre_handle lock_handle[]; /* was LDLM_LOCKREQ_HANDLES */
};
struct ldlm_reply {
__u32 lock_flags;
__u32 lock_padding; /* fix lustre_swab_ldlm_reply */
struct ldlm_lock_desc lock_desc;
struct lustre_handle lock_handle;
__u64 lock_policy_res1;
__u64 lock_policy_res2;
};
#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 = 251,
MGS_EXCEPTION = 252, /* node died, etc. */
MGS_TARGET_REG = 253, /* whenever target starts up */
MGS_TARGET_DEL = 254,
MGS_SET_INFO = 255,
MGS_CONFIG_READ = 256,
MGS_LAST_OPC,
MGS_FIRST_OPC = MGS_CONNECT
};
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
#define MGS_PARAM_MAXLEN 1024
#define KEY_SET_INFO "set_info"
struct mgs_send_param {
char mgs_param[MGS_PARAM_MAXLEN];
};
#endif
/* 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; /* LDD_F_* */
__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];
char mti_nidlist[][LNET_NIDSTR_SIZE];
} __attribute__((packed));
enum mgs_nidlist_flags {
NIDLIST_APPEND = 0x00000001, /* append NIDs to nidtable */
NIDLIST_IN_BULK = 0x00000002, /* nidlist in bulk */
NIDLIST_COMPRESSED = 0x00000004, /* nidlist is compressed */
};
#define MTN_NIDSTR_SIZE LNET_NIDSTR_SIZE
#define NIDLIST_SIZE(count) (MTN_NIDSTR_SIZE * count)
#define NETDEL_TOKEN '#'
struct mgs_target_nidlist {
__u32 mtn_flags; /* flags from mgs_nids_info_flags */
__u32 mtn_nids; /* amount of nids in list */
char mtn_inline_list[][MTN_NIDSTR_SIZE];
} __attribute__((packed));
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. for IPv6. */
__u8 mne_nid_size; /* size of each NID, by bytes */
__u8 mne_nid_count; /* # of NIDs in buffer */
union {
DECLARE_FLEX_ARRAY(lnet_nid_t, nids); /* variable size buffer for NIDs. */
DECLARE_FLEX_ARRAY(struct lnet_nid, nidlist);
} u;
};
enum mgs_cfg_type {
MGS_CFG_T_CONFIG = 0,
MGS_CFG_T_SPTLRPC = 1,
MGS_CFG_T_RECOVER = 2,
MGS_CFG_T_PARAMS = 3,
MGS_CFG_T_NODEMAP = 4,
MGS_CFG_T_BARRIER = 5,
MGS_CFG_T_MAX
};
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: MGS_CFG_T_[CONFIG|RECOVER] */
union {
__u8 mcb_nm_cur_pass; /* mcb_type == MGS_CFG_T_NODEMAP */
__u8 mcb_rec_nid_size; /* mcb_type == MGS_CFG_T_RECOVER */
};
__u8 mcb_bits; /* bits unit size of config log */
__u32 mcb_units; /* # of units for bulk transfer */
};
struct mgs_config_res {
__u64 mcr_offset; /* index of last config log */
union {
__u64 mcr_size; /* size of the log */
__u64 mcr_nm_cur_pass; /* current nodemap config pass */
};
};
/* 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];
};
/*
* Opcodes for multiple servers.
*/
enum obd_cmd {
OBD_PING = 400,
/* OBD_LOG_CANCEL = 401, obsolete since 1.5 */
/* OBD_QC_CALLBACK = 402, obsolete since 2.4 */
OBD_IDX_READ = 403,
OBD_LAST_OPC,
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_UPDATELOG_ORIG_CTXT = 16, /* update log. reserve for the client */
LLOG_UPDATELOG_REPL_CTXT = 17, /* update log. reserve for the client */
LLOG_MAX_CTXTS
};
/** Identifier for a single log object */
struct llog_logid {
struct ost_id lgl_oi;
__u32 lgl_ogen;
} __attribute__((packed));
/** Records written to the CATALOGS list */
#define CATLIST "CATALOGS"
struct llog_catid {
struct llog_logid lci_logid;
__u32 lci_padding1;
__u32 lci_padding2;
__u32 lci_padding3;
} __attribute__((packed));
/* Log data record types - there is no specific reason that these need to
* be related to the RPC opcodes, but no reason not to (may be handy later?)
*/
#define LLOG_OP_MAGIC 0x10600000
#define LLOG_OP_MASK 0xfff00000
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,
CHANGELOG_USER_REC2 = LLOG_OP_MAGIC | 0x70002,
HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
UPDATE_REC = LLOG_OP_MAGIC | 0xa0000, /* Resevered to avoid
* use on client.
*/
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;
} __attribute__((packed));
struct llog_rec_tail {
__u32 lrt_len;
__u32 lrt_index;
} __attribute__((packed));
static inline struct llog_rec_tail *llog_get_rec_tail(struct llog_rec_hdr *rec)
{
return (struct llog_rec_tail *)((char *)rec + rec->lrh_len -
sizeof(struct llog_rec_tail));
}
/* 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))
#define REC_TAIL(rec) \
((struct llog_rec_tail *)((char *)rec + rec->lrh_len - \
sizeof(struct llog_rec_tail)))
struct llog_logid_rec {
struct llog_rec_hdr lid_hdr;
struct llog_logid lid_id;
__u32 lid_padding1;
__u64 lid_padding2;
__u64 lid_padding3;
struct llog_rec_tail lid_tail;
} __attribute__((packed));
struct llog_unlink_rec {
struct llog_rec_hdr lur_hdr;
__u64 lur_oid;
__u32 lur_oseq;
__u32 lur_count;
struct llog_rec_tail lur_tail;
} __attribute__((packed));
struct llog_unlink64_rec {
struct llog_rec_hdr lur_hdr;
struct lu_fid lur_fid;
__u32 lur_count; /* to destroy the lost precreated */
__u32 lur_padding1;
__u64 lur_padding2;
__u64 lur_padding3;
struct llog_rec_tail lur_tail;
} __attribute__((packed));
struct llog_setattr64_rec {
struct llog_rec_hdr lsr_hdr;
struct ost_id lsr_oi;
__u32 lsr_uid;
__u32 lsr_uid_h;
__u32 lsr_gid;
__u32 lsr_gid_h;
__u64 lsr_valid;
struct llog_rec_tail lsr_tail;
} __attribute__((packed));
/* Extended to support project quota */
struct llog_setattr64_rec_v2 {
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;
__u32 lsr_projid;
__u32 lsr_layout_version;
__u64 lsr_padding2;
__u64 lsr_padding3;
struct llog_rec_tail lsr_tail;
} __attribute__((packed));
struct llog_size_change_rec {
struct llog_rec_hdr lsc_hdr;
struct ll_fid lsc_fid;
__u32 lsc_ioepoch;
__u32 lsc_padding1;
__u64 lsc_padding2;
__u64 lsc_padding3;
struct llog_rec_tail lsc_tail;
} __attribute__((packed));
#define CHANGELOG_MAGIC 0xca103000
/** \a changelog_rec_type's that can't be masked */
#define CHANGELOG_MINMASK BIT(CL_MARK)
/** bits covering all \a changelog_rec_type's */
#define CHANGELOG_ALLMASK (BIT(CL_LAST) - 1)
/** default \a changelog_rec_type mask. Allow all of them, except
* CL_ATIME since it can really be time consuming, and not necessary
* under normal use.
* Remove also CL_OPEN, CL_GETXATTR and CL_DN_OPEN from default list as it can
* be costly and only necessary for audit purpose.
*/
#define CHANGELOG_DEFMASK (CHANGELOG_ALLMASK & \
~(BIT(CL_ATIME) | BIT(CL_OPEN) | BIT(CL_GETXATTR) | BIT(CL_DN_OPEN)))
/* changelog llog name, needed by client replicators */
#define CHANGELOG_CATALOG "changelog_catalog"
struct changelog_setinfo {
__u64 cs_recno;
__u32 cs_id;
} __attribute__((packed));
/** changelog record */
struct llog_changelog_rec {
struct llog_rec_hdr cr_hdr;
struct changelog_rec cr; /**< Variable length field */
struct llog_rec_tail cr_do_not_use; /**< for_sizeof_only */
} __attribute__((packed));
#define CHANGELOG_USER_PREFIX "cl"
#define CHANGELOG_USER_NAMELEN 16 /* base name including NUL terminator */
#define CHANGELOG_USER_NAMELEN_FULL 30 /* basename plus 'cl$ID-' prefix */
struct llog_changelog_user_rec {
struct llog_rec_hdr cur_hdr;
__u32 cur_id;
__u32 cur_time; /* relative time comparisons only */
__u64 cur_endrec;
struct llog_rec_tail cur_tail;
} __attribute__((packed));
/* this is twice the size of CHANGELOG_USER_REC */
struct llog_changelog_user_rec2 {
struct llog_rec_hdr cur_hdr;
__u32 cur_id;
__u32 cur_time; /* relative time comparisons only */
__u64 cur_endrec;
__u32 cur_mask;
__u32 cur_padding1;
char cur_name[CHANGELOG_USER_NAMELEN];
__u64 cur_padding2;
__u64 cur_padding3;
struct llog_rec_tail cur_tail;
} __attribute__((packed));
enum agent_req_status {
ARS_WAITING,
ARS_STARTED,
ARS_FAILED,
ARS_CANCELED,
ARS_SUCCEED,
};
static inline const char *agent_req_status2name(enum agent_req_status ars)
{
switch (ars) {
case ARS_WAITING:
return "WAITING";
case ARS_STARTED:
return "STARTED";
case ARS_FAILED:
return "FAILED";
case ARS_CANCELED:
return "CANCELED";
case ARS_SUCCEED:
return "SUCCEED";
default:
return "UNKNOWN";
}
}
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,
* ignored
*/
__u64 arr_req_create; /**< req. creation time */
__u64 arr_req_change; /**< req. status change time */
struct hsm_action_item arr_hai; /**< req. to the agent */
struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
} __attribute__((packed));
/* Old llog gen for compatibility */
struct llog_gen {
__u64 mnt_cnt;
__u64 conn_cnt;
} __attribute__((packed));
struct llog_gen_rec {
struct llog_rec_hdr lgr_hdr;
struct llog_gen lgr_gen;
__u64 padding1;
__u64 padding2;
__u64 padding3;
struct llog_rec_tail lgr_tail;
};
/* 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 = 0x8,
LLOG_F_IS_FIXSIZE = 0x10,
LLOG_F_EXT_EXTRA_FLAGS = 0x20,
LLOG_F_EXT_X_UIDGID = 0x40,
LLOG_F_EXT_X_NID = 0x80,
LLOG_F_EXT_X_OMODE = 0x100,
LLOG_F_EXT_X_XATTR = 0x200,
LLOG_F_RM_ON_ERR = 0x400,
LLOG_F_MAX_AGE = 0x800,
LLOG_F_EXT_X_NID_BE = 0x1000,
LLOG_F_UNLCK_SEM = 0x2000,
/* Note: Flags covered by LLOG_F_EXT_MASK will be inherited from
* catlog to plain log, so do not add LLOG_F_IS_FIXSIZE here,
* because the catlog record is usually fixed size, but its plain
* log record can be variable
*/
LLOG_F_EXT_MASK = LLOG_F_EXT_JOBID | LLOG_F_EXT_EXTRA_FLAGS |
LLOG_F_EXT_X_UIDGID | LLOG_F_EXT_X_NID |
LLOG_F_EXT_X_OMODE | LLOG_F_EXT_X_XATTR |
LLOG_F_EXT_X_NID_BE | LLOG_F_UNLCK_SEM,
};
/* On-disk header structure of each log object, stored in little endian order */
#define LLOG_MIN_CHUNK_SIZE 8192
#define LLOG_HEADER_SIZE (96) /* sizeof (llog_log_hdr) + sizeof(llh_tail)
* - sizeof(llh_bitmap)
*/
#define LLOG_BITMAP_BYTES (LLOG_MIN_CHUNK_SIZE - LLOG_HEADER_SIZE)
#define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
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;
/* for a catalog the first/oldest and still in-use plain slot is just
* next to it. It will serve as the upper limit after Catalog has
* wrapped around
*/
__u32 llh_cat_idx;
struct obd_uuid llh_tgtuuid;
__u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32)-23];
/* These fields must always be at the end of the llog_log_hdr.
* Note: llh_bitmap size is variable because llog chunk size could be
* bigger than LLOG_MIN_CHUNK_SIZE, i.e. sizeof(llog_log_hdr) > 8192
* bytes, and the real size is stored in llh_hdr.lrh_len, which means
* llh_tail should only be refered by LLOG_HDR_TAIL().
* But this structure is also used by client/server llog interface
* (see llog_client.c), it will be kept in its original way to avoid
* compatiblity issue.
*/
__u32 llh_bitmap[LLOG_BITMAP_BYTES / sizeof(__u32)];
struct llog_rec_tail llh_tail;
} __attribute__((packed));
#undef LLOG_HEADER_SIZE
#undef LLOG_BITMAP_BYTES
#define LLOG_HDR_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
llh->llh_bitmap_offset - \
sizeof(llh->llh_tail)) * 8)
#define LLOG_HDR_BITMAP(llh) (__u32 *)((char *)(llh) + \
(llh)->llh_bitmap_offset)
#define LLOG_HDR_TAIL(llh) ((struct llog_rec_tail *)((char *)llh + \
llh->llh_hdr.lrh_len - \
sizeof(llh->llh_tail)))
/* log cookies are used to reference a specific log file and a record therein,
* and pass record offset from llog_process_thread to llog_write
*/
struct llog_cookie {
union {
struct llog_logid lgc_lgl;
__u64 lgc_offset;
};
__u32 lgc_subsys;
__u32 lgc_index;
__u32 lgc_padding;
} __attribute__((packed));
/** llog protocol */
enum llogd_rpc_ops {
LLOG_ORIGIN_HANDLE_CREATE = 501,
LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
/* LLOG_ORIGIN_HANDLE_WRITE_REC = 504, Obsolete by 2.1. */
/* LLOG_ORIGIN_HANDLE_CLOSE = 505, Obsolete by 1.8. */
/* LLOG_ORIGIN_CONNECT = 506, Obsolete by 2.4. */
/* LLOG_CATINFO = 507, Obsolete by 2.3. */
LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
LLOG_ORIGIN_HANDLE_DESTROY = 509, /* Obsolete by 2.11. */
LLOG_LAST_OPC,
LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
};
struct llogd_body {
struct llog_logid lgd_logid;
__u32 lgd_ctxt_idx;
__u32 lgd_llh_flags;
__u32 lgd_index;
__u32 lgd_saved_index;
__u32 lgd_len;
__u64 lgd_cur_offset;
} __attribute__((packed));
struct llogd_conn_body {
struct llog_gen lgdc_gen;
struct llog_logid lgdc_logid;
__u32 lgdc_ctxt_idx;
} __attribute__((packed));
/* Note: 64-bit types are 64-bit aligned in structure */
struct obdo {
__u64 o_valid; /* hot fields in this obdo */
struct ost_id o_oi;
__u64 o_parent_seq;
__u64 o_size; /* o_size-o_blocks == ost_lvb */
__s64 o_mtime;
__s64 o_atime;
__s64 o_ctime;
__u64 o_blocks; /* brw: cli sent cached bytes */
__u64 o_grant;
/* 32-bit fields start here: keep an even number of them via padding */
__u32 o_blksize; /* optimal IO blocksize */
__u32 o_mode; /* brw: cli sent cache remain */
__u32 o_uid;
__u32 o_gid;
__u32 o_flags;
__u32 o_nlink; /* brw: checksum */
__u32 o_parent_oid;
__u32 o_misc; /* brw: o_dropped */
__u64 o_ioepoch; /* epoch in ost writes */
__u32 o_stripe_idx; /* holds stripe idx */
__u32 o_parent_ver;
struct lustre_handle o_handle; /* brw: prolong locks on IO */
/* Originally, the field is llog_cookie for destroy with unlink cookie
* from MDS, it is obsolete in 2.8. Then reuse it by client to transfer
* layout and PFL information in IO, setattr RPCs. Since llog_cookie is
* not used on wire any longer, remove it from the obdo, then it can be
* enlarged freely in the further without affect related RPCs.
*
* sizeof(ost_layout) + sieof(__u32) == sizeof(llog_cookie).
*/
struct ost_layout o_layout;
__u32 o_layout_version;
__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
*/
__u32 o_projid;
__u32 o_padding_4; /* fix lustre_swab_obdo() */
__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
#define o_falloc_mode o_nlink
struct lfsck_request {
__u32 lr_event;
__u32 lr_index;
__u32 lr_flags;
__u32 lr_valid;
union {
__u32 lr_speed;
__u32 lr_status;
};
__u16 lr_version;
__u16 lr_active;
__u16 lr_param;
__u16 lr_async_windows;
__u32 lr_flags2;
struct lu_fid lr_fid;
struct lu_fid lr_fid2;
__u32 lr_comp_id;
__u32 lr_padding_0;
__u64 lr_padding_1;
__u64 lr_padding_2;
__u64 lr_padding_3;
};
struct lfsck_reply {
__u32 lr_status;
__u32 lr_padding_1;
__u64 lr_repaired;
};
enum lfsck_events {
LE_LASTID_REBUILDING = 1,
LE_LASTID_REBUILT = 2,
LE_PHASE1_DONE = 3,
LE_PHASE2_DONE = 4,
LE_START = 5,
LE_STOP = 6,
LE_QUERY = 7,
/* LE_FID_ACCESSED = 8, moved to lfsck_events_local */
LE_PEER_EXIT = 9,
LE_CONDITIONAL_DESTROY = 10,
LE_PAIRS_VERIFY = 11,
LE_SET_LMV_MASTER = 15,
LE_SET_LMV_SLAVE = 16,
};
enum lfsck_event_flags {
LEF_TO_OST = 0x00000001,
LEF_FROM_OST = 0x00000002,
LEF_SET_LMV_HASH = 0x00000004,
LEF_SET_LMV_ALL = 0x00000008,
LEF_RECHECK_NAME_HASH = 0x00000010,
LEF_QUERY_ALL = 0x00000020,
};
/* 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 lfik_name[8];
struct obdo lfik_oa;
struct fiemap lfik_fiemap;
};
#define IDX_INFO_MAGIC 0x3D37CC37
/* List of flags used in idx_info::ii_flags */
enum idx_info_flags {
II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
II_FL_VARREC = 1 << 2, /* records can be of variable size */
II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
II_FL_NOKEY = 1 << 4, /* client doesn't care about key */
};
/* Index file transfer through the network. The server serializes the index into
* a byte stream which is sent to the client via a bulk transfer
*/
struct idx_info {
__u32 ii_magic;
/* reply: see idx_info_flags below */
__u32 ii_flags; /* II_FK_* flags */
/* request & reply: number of lu_idxpage (to be) transferred */
__u16 ii_count;
__u16 ii_pad0;
/* request: requested attributes passed down to the iterator API */
__u32 ii_attrs;
/* request & reply: index file identifier (FID) */
struct lu_fid ii_fid;
/* reply: version of the index file before starting to walk the index.
* Please note that the version can be modified at any time during the
* transfer
*/
__u64 ii_version;
/* request: hash to start with:
* reply: hash of the first entry of the first lu_idxpage and hash
* of the entry to read next if any
*/
__u64 ii_hash_start;
__u64 ii_hash_end;
/* reply: keys size in lu_idxpages, minimal one if II_FL_VARKEY set */
__u16 ii_keysize;
/* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC */
__u16 ii_recsize;
__u32 ii_pad1;
__u64 ii_pad2;
__u64 ii_pad3;
};
#define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
#define LIP_MAGIC 0x8A6D6B6C
/* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
struct lu_idxpage {
/* 16-byte header */
__u32 lip_magic;
__u16 lip_flags;
__u16 lip_nr; /* number of entries in the container */
__u64 lip_pad0; /* additional padding for future use */
/* key/record pairs are stored in the remaining 4080 bytes.
* depending upon the flags in idx_info::ii_flags, each key/record
* pair might be preceded by:
* - a hash value
* - the key size (II_FL_VARKEY is set)
* - the record size (II_FL_VARREC is set)
*
* For the time being, we only support fixed-size key & record.
*/
char lip_entries[];
};
#define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
/* Gather all possible type associated with a 4KB container */
union lu_page {
struct lu_dirpage lp_dir; /* for MDS_READPAGE */
struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
char lp_array[LU_PAGE_SIZE];
};
/* security opcodes */
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,
};
/** 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 */
__u32 leh_overflow_time;
__u32 leh_padding;
};
/** Hardlink data is name and parent fid.
* Stored in this crazy struct for maximum packing and endian-neutrality
*/
struct link_ea_entry {
unsigned char lee_reclen[2]; /* __u16 big-endian, unaligned */
unsigned char lee_parent_fid[sizeof(struct lu_fid)];
char lee_name[];
} __attribute__((packed));
/** fid2path request/reply structure */
struct getinfo_fid2path {
struct lu_fid gf_fid;
__u64 gf_recno;
__u32 gf_linkno;
__u32 gf_pathlen;
union {
DECLARE_FLEX_ARRAY(char, gf_path);
DECLARE_FLEX_ARRAY(struct lu_fid, gf_root_fid);
} gf_u;
} __attribute__((packed));
/** 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[]; /**< zero-terminated link name */
} __attribute__((packed));
enum layout_intent_opc {
LAYOUT_INTENT_ACCESS = 0, /** generic access */
LAYOUT_INTENT_READ = 1, /** not used */
LAYOUT_INTENT_WRITE = 2, /** write file, for comp layout */
LAYOUT_INTENT_GLIMPSE = 3, /** not used */
LAYOUT_INTENT_TRUNC = 4, /** truncate file, for comp layout */
LAYOUT_INTENT_RELEASE = 5, /** reserved for HSM release */
LAYOUT_INTENT_RESTORE = 6, /** reserved for HSM restore */
LAYOUT_INTENT_PCCRO_SET = 7, /** set read-only layout for PCC */
LAYOUT_INTENT_PCCRO_CLEAR = 8, /** clear read-only layout */
LAYOUT_INTENT_CHANGE = 9, /** change layout flag */
};
/**
* used for lai_flags/lai_values, 32bit field; if a bit is set in lai_flags,
* and the corresponding bit value in lai_values determines whether that state
* should be set or cleared.
*/
enum layout_intent_flags {
LAIF_INCOMPRESSIBLE = 1U << 0, /* 0x0001 change compressibility */
};
/* enqueue layout lock with intent */
struct layout_intent {
__u32 lai_opc; /* intent operation for enqueue, read, write etc */
__u32 lai_flags;
struct lu_extent lai_extent;
} __attribute__((packed));
/**
* 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;
} __attribute__((packed));
/**
* OUT_UPDATE RPC Format
*
* During the cross-ref operation, the Master MDT, which the client send the
* request to, will disassembly the operation into object updates, then OSP
* will send these updates to the remote MDT to be executed.
*
* An UPDATE_OBJ RPC does a list of updates. Each update belongs to an
* operation and does a type of modification to an object.
*
* Request Format
*
* update_buf
* update (1st)
* update (2nd)
* ...
* update (ub_count-th)
*
* ub_count must be less than or equal to UPDATE_PER_RPC_MAX.
*
* Reply Format
*
* update_reply
* rc [+ buffers] (1st)
* rc [+ buffers] (2st)
* ...
* rc [+ buffers] (nr_count-th)
*
* ur_count must be less than or equal to UPDATE_PER_RPC_MAX and should usually
* be equal to ub_count.
*/
/**
* Type of each update, if adding/deleting update, please also update
* update_opcode in lustre/target/out_lib.c.
*/
enum update_type {
OUT_START = 0,
OUT_CREATE = 1,
OUT_DESTROY = 2,
OUT_REF_ADD = 3,
OUT_REF_DEL = 4,
OUT_ATTR_SET = 5,
OUT_ATTR_GET = 6,
OUT_XATTR_SET = 7,
OUT_XATTR_GET = 8,
OUT_INDEX_LOOKUP = 9,
OUT_INDEX_INSERT = 10,
OUT_INDEX_DELETE = 11,
OUT_WRITE = 12,
OUT_XATTR_DEL = 13,
OUT_PUNCH = 14,
OUT_READ = 15,
OUT_NOOP = 16,
OUT_XATTR_LIST = 17,
OUT_LAST
};
enum update_flag {
UPDATE_FL_OST = 0x00000001, /* op from OST (not MDT) */
UPDATE_FL_SYNC = 0x00000002, /* commit before replying */
UPDATE_FL_COMMITTED = 0x00000004, /* op committed globally */
UPDATE_FL_NOLOG = 0x00000008 /* for idempotent updates */
};
struct object_update_param {
__u16 oup_len; /* length of this parameter */
__u16 oup_padding;
__u32 oup_padding2;
char oup_buf[];
} __attribute__((packed));
/* object update */
struct object_update {
__u16 ou_type; /* enum update_type */
__u16 ou_params_count; /* update parameters count */
__u32 ou_result_size; /* how many bytes can return */
__u32 ou_flags; /* enum update_flag */
__u32 ou_padding1; /* padding 1 */
__u64 ou_batchid; /* op transno on master */
struct lu_fid ou_fid; /* object to be updated */
struct object_update_param ou_params[]; /* update params */
};
#define UPDATE_REQUEST_MAGIC_V1 0xBDDE0001
#define UPDATE_REQUEST_MAGIC_V2 0xBDDE0002
#define UPDATE_REQUEST_MAGIC UPDATE_REQUEST_MAGIC_V2
/* Hold object_updates sending to the remote OUT in single RPC */
struct object_update_request {
__u32 ourq_magic;
__u16 ourq_count; /* number of ourq_updates[] */
__u16 ourq_padding;
struct object_update ourq_updates[];
};
#define OUT_UPDATE_HEADER_MAGIC 0xBDDF0001
#define OUT_UPDATE_MAX_INLINE_SIZE 4096
/* Header for updates request between MDTs */
struct out_update_header {
__u32 ouh_magic;
__u32 ouh_count;
__u32 ouh_inline_length;
__u32 ouh_reply_size;
__u32 ouh_inline_data[];
};
struct out_update_buffer {
__u32 oub_size;
__u32 oub_padding;
};
/* the result of object update */
struct object_update_result {
__u32 our_rc;
__u16 our_datalen;
__u16 our_padding;
__u32 our_data[];
};
#define UPDATE_REPLY_MAGIC_V1 0x00BD0001
#define UPDATE_REPLY_MAGIC_V2 0x00BD0002
#define UPDATE_REPLY_MAGIC UPDATE_REPLY_MAGIC_V2
/* Hold object_update_results being replied from the remote OUT. */
struct object_update_reply {
__u32 ourp_magic;
__u16 ourp_count;
__u16 ourp_padding;
__u16 ourp_lens[];
};
/* read update result */
struct out_read_reply {
__u32 orr_size;
__u32 orr_padding;
__u64 orr_offset;
char orr_data[];
};
#define BUT_REQUEST_MAGIC 0xBADE0001
/* Hold batched updates sending to the remote target in a single RPC */
struct batch_update_request {
/* Magic number: BUT_REQUEST_MAGIC. */
__u32 burq_magic;
/* Number of sub requests packed in this batched RPC: burq_reqmsg[]. */
__u16 burq_count;
/* Unused padding field. */
__u16 burq_padding;
/*
* Sub request message array. As message feild buffers for each sub
* request are packed after padded lustre_msg.lm_buflens[] arrary, thus
* it can locate the next request message via the function
* @batch_update_reqmsg_next() in lustre/include/obj_update.h
*/
struct lustre_msg burq_reqmsg[];
};
#define BUT_HEADER_MAGIC 0xBADF0001
/* Header for Batched UpdaTes request */
struct but_update_header {
/* Magic number: BUT_HEADER_MAGIC */
__u32 buh_magic;
/*
* When the total request buffer length is less than MAX_INLINE_SIZE,
* @buh_count is set with 1 and the batched RPC reqeust can be packed
* inline.
* Otherwise, @buh_count indicates the IO vector count transferring in
* bulk I/O.
*/
__u32 buh_count;
/* inline buffer length when the batched RPC can be packed inline. */
__u32 buh_inline_length;
/* The reply buffer size the client prepared. */
__u32 buh_reply_size;
/* Sub request count in this batched RPC. */
__u32 buh_update_count;
/* Unused padding field. */
__u32 buh_padding;
/* Inline buffer used when the RPC request can be packed inline. */
__u32 buh_inline_data[];
};
struct but_update_buffer {
__u32 bub_size;
__u32 bub_padding;
};
#define BUT_REPLY_MAGIC 0x00AD0001
/* Batched reply received from a remote targer in a batched RPC. */
struct batch_update_reply {
/* Magic number: BUT_REPLY_MAGIC. */
__u32 burp_magic;
/* Successful returned sub requests. */
__u16 burp_count;
/* Unused padding field. */
__u16 burp_padding;
/*
* Sub reply message array.
* It can locate the next reply message buffer via the function
* @batch_update_repmsg_next() in lustre/include/obj_update.h
*/
struct lustre_msg burp_repmsg[];
};
/**
* Batch update opcode.
*/
enum batch_update_cmd {
BUT_GETATTR = 1,
BUT_LAST_OPC,
BUT_FIRST_OPC = BUT_GETATTR,
};
/** layout swap request structure
* fid1 and fid2 are in mdt_body
*
* /!\ msl_dv1 and msl_dv2 are valid only if msl_flags contains
* SWAP_LAYOUTS_WITH_DV12
*/
struct mdc_swap_layouts {
__u64 msl_flags;
__u64 msl_dv1; /* data version of file 1 */
__u64 msl_dv2; /* data version of file 2 */
};
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 4, 53, 0)
/* extra fields were added in commit v2_17_51-2-g63caacb042.
* struct mdc_swap_layouts_217 not needed after 3.4.53.
*/
struct mdc_swap_layouts_217 {
__u64 msl_flags;
};
#endif
#define INLINE_RESYNC_ARRAY_SIZE 15
struct close_data_resync_done {
__u32 resync_count;
__u32 resync_ids_inline[INLINE_RESYNC_ARRAY_SIZE];
};
struct close_data {
struct lustre_handle cd_handle;
struct lu_fid cd_fid;
__u64 cd_data_version;
union {
__u64 cd_reserved[8];
struct close_data_resync_done cd_resync;
/* split close */
__u16 cd_mirror_id;
/* PCC release */
__u32 cd_archive_id;
/* migrate swap layout */
__u64 cd_data_version2;
};
};
/* Update llog format */
struct update_op {
struct lu_fid uop_fid;
__u16 uop_type;
__u16 uop_param_count;
__u16 uop_params_off[];
} __attribute__((packed));
struct update_ops {
DECLARE_FLEX_ARRAY(struct update_op, uops_op);
};
struct update_params {
DECLARE_FLEX_ARRAY(struct object_update_param, up_params);
};
enum update_records_flag {
UPDATE_RECORD_CONTINUE = 1 >> 0,
};
/*
* This is the update record format used to store the updates in
* disk. All updates of the operation will be stored in ur_ops.
* All of parameters for updates of the operation will be stored
* in ur_params.
* To save the space of the record, parameters in ur_ops will only
* remember their offset in ur_params, so to avoid storing duplicate
* parameters in ur_params, which can help us save a lot space for
* operation like creating striped directory.
*/
struct update_records {
__u64 ur_master_transno;
__u64 ur_batchid;
__u32 ur_flags;
/* If the operation includes multiple updates, then ur_index
* means the index of the update inside the whole updates.
*/
__u32 ur_index;
__u32 ur_update_count;
__u32 ur_param_count;
struct update_ops ur_ops;
/* Note ur_ops has a variable size, so comment out
* the following ur_params, in case some use it directly
* update_records->ur_params
*
* struct update_params ur_params;
*/
};
struct llog_update_record {
struct llog_rec_hdr lur_hdr;
struct update_records lur_update_rec;
/* Note ur_update_rec has a variable size, so comment out
* the following ur_tail, in case someone use it directly
*
* struct llog_rec_tail lur_tail;
*/
};
/* sepol string format is:
* <1-digit for SELinux status>:<policy name>:<policy version>:<policy hash>
*/
/* Max length of the sepol string
* Should be large enough to contain a sha512sum of the policy
*/
#define SELINUX_MODE_LEN 1
#define SELINUX_POLICY_VER_LEN 3 /* 3 chars to leave room for the future */
#define SELINUX_POLICY_HASH_LEN 64
#define LUSTRE_NODEMAP_SEPOL_LENGTH (SELINUX_MODE_LEN + NAME_MAX + \
SELINUX_POLICY_VER_LEN + \
SELINUX_POLICY_HASH_LEN + 3)
/** enums containing the types of ids contained in a nodemap
* kept so other modules (mgs, mdt, etc) can define the type
* of search easily
*/
enum nodemap_id_type {
NODEMAP_UID = 0,
NODEMAP_GID = 1,
NODEMAP_PROJID = 2,
};
enum nodemap_tree_type {
NODEMAP_FS_TO_CLIENT = 0,
NODEMAP_CLIENT_TO_FS = 1,
};
enum nodemap_mapping_modes {
NODEMAP_MAP_BOTH_LEGACY = 0x0, /* for compatibility */
NODEMAP_MAP_UID = 0x01,
NODEMAP_MAP_GID = 0x02,
NODEMAP_MAP_BOTH = 0x03, /* for compatibility */
NODEMAP_MAP_PROJID = 0x04,
NODEMAP_MAP_ALL = NODEMAP_MAP_UID |
NODEMAP_MAP_GID |
NODEMAP_MAP_PROJID,
};
enum nodemap_rbac_roles {
NODEMAP_RBAC_FILE_PERMS = 0x00000001,
NODEMAP_RBAC_DNE_OPS = 0x00000002,
NODEMAP_RBAC_QUOTA_OPS = 0x00000004,
NODEMAP_RBAC_BYFID_OPS = 0x00000008,
NODEMAP_RBAC_CHLG_OPS = 0x00000010,
NODEMAP_RBAC_FSCRYPT_ADMIN = 0x00000020,
NODEMAP_RBAC_SERVER_UPCALL = 0x00000040,
NODEMAP_RBAC_IGN_ROOT_PRJQUOTA = 0x00000080,
NODEMAP_RBAC_HSM_OPS = 0x00000100,
NODEMAP_RBAC_LOCAL_ADMIN = 0x00000200,
NODEMAP_RBAC_POOL_QUOTA_OPS = 0x00000400,
NODEMAP_RBAC_LQA_QUOTA_OPS = 0x00000800,
NODEMAP_RBAC_PROJID_SET = 0x00001000,
NODEMAP_RBAC_FOREIGN_OPS = 0x00002000,
NODEMAP_RBAC_NONE = (__u32)~(NODEMAP_RBAC_FILE_PERMS |
NODEMAP_RBAC_DNE_OPS |
NODEMAP_RBAC_QUOTA_OPS |
NODEMAP_RBAC_BYFID_OPS |
NODEMAP_RBAC_CHLG_OPS |
NODEMAP_RBAC_FSCRYPT_ADMIN |
NODEMAP_RBAC_SERVER_UPCALL |
NODEMAP_RBAC_IGN_ROOT_PRJQUOTA |
NODEMAP_RBAC_HSM_OPS |
NODEMAP_RBAC_LOCAL_ADMIN |
NODEMAP_RBAC_POOL_QUOTA_OPS |
NODEMAP_RBAC_LQA_QUOTA_OPS |
NODEMAP_RBAC_PROJID_SET |
NODEMAP_RBAC_FOREIGN_OPS |
0),
NODEMAP_RBAC_ALL = 0xFFFFFFFF, /* future caps ON by default */
};
enum nodemap_raise_privs {
NODEMAP_RAISE_PRIV_RAISE = 0x00000001,
NODEMAP_RAISE_PRIV_ADMIN = 0x00000002,
NODEMAP_RAISE_PRIV_TRUSTED = 0x00000004,
NODEMAP_RAISE_PRIV_DENY_UNKN = 0x00000008,
NODEMAP_RAISE_PRIV_RO = 0x00000010,
NODEMAP_RAISE_PRIV_RBAC = 0x00000020,
NODEMAP_RAISE_PRIV_FORBID_ENC = 0x00000040,
NODEMAP_RAISE_PRIV_CAPS = 0x00000080,
NODEMAP_RAISE_PRIV_DENY_MNT = 0x00000100,
NODEMAP_RAISE_PRIV_NONE = (__u32)~(NODEMAP_RAISE_PRIV_RAISE |
NODEMAP_RAISE_PRIV_ADMIN |
NODEMAP_RAISE_PRIV_TRUSTED |
NODEMAP_RAISE_PRIV_DENY_UNKN |
NODEMAP_RAISE_PRIV_RO |
NODEMAP_RAISE_PRIV_RBAC |
NODEMAP_RAISE_PRIV_FORBID_ENC|
NODEMAP_RAISE_PRIV_CAPS |
NODEMAP_RAISE_PRIV_DENY_MNT),
NODEMAP_RAISE_PRIV_ALL = 0xFFFFFFFF, /* future privs RAISED by def */
};
enum nodemap_cap_type {
NODEMAP_CAP_OFF = 0,
NODEMAP_CAP_MASK = 1,
NODEMAP_CAP_SET = 2,
};
/*
* rawobj stuff for GSS
*/
typedef struct netobj_s {
__u32 len;
__u8 data[];
} netobj_t;
typedef struct rawobj_s {
__u32 len;
__u8 *data;
} rawobj_t;
/*
* GSS headers
* following 3 headers must have the same sizes and offsets
*/
struct gss_header {
__u8 gh_version; /* gss version */
__u8 gh_sp; /* sec part */
__u16 gh_pad0;
__u32 gh_flags; /* wrap flags */
__u32 gh_proc; /* proc */
__u32 gh_seq; /* sequence */
__u32 gh_svc; /* service */
__u32 gh_pad1;
__u32 gh_pad2;
__u32 gh_pad3;
netobj_t gh_handle; /* context handle */
};
struct gss_rep_header {
__u8 gh_version;
__u8 gh_sp;
__u16 gh_pad0;
__u32 gh_flags;
__u32 gh_proc;
__u32 gh_major;
__u32 gh_minor;
__u32 gh_seqwin;
__u32 gh_pad2;
__u32 gh_pad3;
netobj_t gh_handle;
};
struct gss_err_header {
__u8 gh_version;
__u8 gh_sp;
__u16 gh_pad0;
__u32 gh_flags;
__u32 gh_proc;
__u32 gh_major;
__u32 gh_minor;
__u32 gh_pad1;
__u32 gh_pad2;
__u32 gh_pad3;
netobj_t gh_handle;
};
/*
* GSS part of wire context information sent from client, saved and
* used later by server.
*/
struct gss_wire_ctx {
__u32 gw_flags;
__u32 gw_proc;
__u32 gw_seq;
__u32 gw_svc;
rawobj_t gw_handle;
};
/* This is the lu_ladvise struct which goes out on the wire.
* Corresponds to the userspace arg llapi_lu_ladvise.
* value[1-4] are unspecified fields, used differently by different advices
*/
struct lu_ladvise {
__u16 lla_advice; /* advice type */
__u16 lla_value1; /* values for different advice types */
__u32 lla_value2;
__u64 lla_start; /* first byte of extent for advice */
__u64 lla_end; /* last byte of extent for advice */
__u32 lla_value3;
__u32 lla_value4;
};
/* This is the ladvise_hdr which goes on the wire, corresponds to the userspace
* arg llapi_ladvise_hdr.
* value[1-3] are unspecified fields, used differently by different advices
*/
struct ladvise_hdr {
__u32 lah_magic; /* LADVISE_MAGIC */
__u32 lah_count; /* number of advices */
__u64 lah_flags; /* from enum ladvise_flag */
__u32 lah_value1; /* unused */
__u32 lah_value2; /* unused */
__u64 lah_value3; /* unused */
struct lu_ladvise lah_advise[]; /* advices in this header */
};
#if defined(__cplusplus)
}
#endif
#endif
/** @} lustreidl */
