diff options
Diffstat (limited to 'drivers/staging/lustre/include/uapi/linux/lustre/lustre_idl.h')
| -rw-r--r-- | drivers/staging/lustre/include/uapi/linux/lustre/lustre_idl.h | 2688 |
1 files changed, 2688 insertions, 0 deletions
diff --git a/drivers/staging/lustre/include/uapi/linux/lustre/lustre_idl.h b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_idl.h new file mode 100644 index 000000000000..aac98dbcf6e3 --- /dev/null +++ b/drivers/staging/lustre/include/uapi/linux/lustre/lustre_idl.h @@ -0,0 +1,2688 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.gnu.org/licenses/gpl-2.0.html + * + * GPL HEADER END + */ +/* + * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2015, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * Lustre wire protocol definitions. + */ + +/** \defgroup lustreidl lustreidl + * + * Lustre wire protocol definitions. + * + * ALL structs passing over the wire should be declared here. Structs + * that are used in interfaces with userspace should go in lustre_user.h. + * + * All structs being declared here should be built from simple fixed-size + * types (__u8, __u16, __u32, __u64) or be built from other types or + * structs also declared in this file. Similarly, all flags and magic + * values in those structs should also be declared here. This ensures + * that the Lustre wire protocol is not influenced by external dependencies. + * + * The only other acceptable items in this file are VERY SIMPLE accessor + * functions to avoid callers grubbing inside the structures. 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/types.h> + +#include <uapi/linux/lnet/lnet-types.h> +/* Defn's shared with user-space. */ +#include <uapi/linux/lustre/lustre_user.h> +#include <uapi/linux/lustre/lustre_ver.h> + +/* + * GENERAL STUFF + */ +/* FOO_REQUEST_PORTAL is for incoming requests on the FOO + * FOO_REPLY_PORTAL is for incoming replies on the FOO + * FOO_BULK_PORTAL is for incoming bulk on the FOO + */ + +/* Lustre service names are following the format + * service name + MDT + seq name + */ +#define LUSTRE_MDT_MAXNAMELEN 80 + +#define CONNMGR_REQUEST_PORTAL 1 +#define CONNMGR_REPLY_PORTAL 2 +/*#define OSC_REQUEST_PORTAL 3 */ +#define OSC_REPLY_PORTAL 4 +/*#define OSC_BULK_PORTAL 5 */ +#define OST_IO_PORTAL 6 +#define OST_CREATE_PORTAL 7 +#define OST_BULK_PORTAL 8 +/*#define MDC_REQUEST_PORTAL 9 */ +#define MDC_REPLY_PORTAL 10 +/*#define MDC_BULK_PORTAL 11 */ +#define MDS_REQUEST_PORTAL 12 +/*#define MDS_REPLY_PORTAL 13 */ +#define MDS_BULK_PORTAL 14 +#define LDLM_CB_REQUEST_PORTAL 15 +#define LDLM_CB_REPLY_PORTAL 16 +#define LDLM_CANCEL_REQUEST_PORTAL 17 +#define LDLM_CANCEL_REPLY_PORTAL 18 +/*#define PTLBD_REQUEST_PORTAL 19 */ +/*#define PTLBD_REPLY_PORTAL 20 */ +/*#define PTLBD_BULK_PORTAL 21 */ +#define MDS_SETATTR_PORTAL 22 +#define MDS_READPAGE_PORTAL 23 +#define OUT_PORTAL 24 + +#define MGC_REPLY_PORTAL 25 +#define MGS_REQUEST_PORTAL 26 +#define MGS_REPLY_PORTAL 27 +#define OST_REQUEST_PORTAL 28 +#define FLD_REQUEST_PORTAL 29 +#define SEQ_METADATA_PORTAL 30 +#define SEQ_DATA_PORTAL 31 +#define SEQ_CONTROLLER_PORTAL 32 +#define MGS_BULK_PORTAL 33 + +/* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, + * n8851@cray.com + */ + +/* packet types */ +#define PTL_RPC_MSG_REQUEST 4711 +#define PTL_RPC_MSG_ERR 4712 +#define PTL_RPC_MSG_REPLY 4713 + +/* DON'T use swabbed values of MAGIC as magic! */ +#define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3 +#define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B + +#define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2 + +#define PTLRPC_MSG_VERSION 0x00000003 +#define LUSTRE_VERSION_MASK 0xffff0000 +#define LUSTRE_OBD_VERSION 0x00010000 +#define LUSTRE_MDS_VERSION 0x00020000 +#define LUSTRE_OST_VERSION 0x00030000 +#define LUSTRE_DLM_VERSION 0x00040000 +#define LUSTRE_LOG_VERSION 0x00050000 +#define LUSTRE_MGS_VERSION 0x00060000 + +/** + * Describes a range of sequence, lsr_start is included but lsr_end is + * not in the range. + * Same structure is used in fld module where lsr_index field holds mdt id + * of the home mdt. + */ +struct lu_seq_range { + __u64 lsr_start; + __u64 lsr_end; + __u32 lsr_index; + __u32 lsr_flags; +}; + +struct lu_seq_range_array { + __u32 lsra_count; + __u32 lsra_padding; + struct lu_seq_range lsra_lsr[0]; +}; + +#define LU_SEQ_RANGE_MDT 0x0 +#define LU_SEQ_RANGE_OST 0x1 +#define LU_SEQ_RANGE_ANY 0x3 + +#define LU_SEQ_RANGE_MASK 0x3 + +/** \defgroup lu_fid lu_fid + * @{ + */ + +/** + * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat. + * Deprecated since HSM and SOM attributes are now stored in separate on-disk + * xattr. + */ +enum lma_compat { + LMAC_HSM = 0x00000001, +/* LMAC_SOM = 0x00000002, obsolete since 2.8.0 */ + LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */ + LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is + * under /O/<seq>/d<x>. + */ +}; + +/** + * Masks for all features that should be supported by a Lustre version to + * access a specific file. + * This information is stored in lustre_mdt_attrs::lma_incompat. + */ +enum lma_incompat { + LMAI_RELEASED = 0x00000001, /* file is released */ + LMAI_AGENT = 0x00000002, /* agent inode */ + LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object + * is on the remote MDT + */ +}; + +#define LMA_INCOMPAT_SUPP (LMAI_AGENT | LMAI_REMOTE_PARENT) + +/** + * fid constants + */ +enum { + /** LASTID file has zero OID */ + LUSTRE_FID_LASTID_OID = 0UL, + /** initial fid id value */ + LUSTRE_FID_INIT_OID = 1UL +}; + +/* copytool uses a 32b bitmask field to encode archive-Ids during register + * with MDT thru kuc. + * archive num = 0 => all + * archive num from 1 to 32 + */ +#define LL_HSM_MAX_ARCHIVE (sizeof(__u32) * 8) + +/** + * Note that reserved SEQ numbers below 12 will conflict with ldiskfs + * inodes in the IGIF namespace, so these reserved SEQ numbers can be + * used for other purposes and not risk collisions with existing inodes. + * + * Different FID Format + * http://wiki.old.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs + */ +enum fid_seq { + FID_SEQ_OST_MDT0 = 0, + FID_SEQ_LLOG = 1, /* unnamed llogs */ + FID_SEQ_ECHO = 2, + FID_SEQ_OST_MDT1 = 3, + FID_SEQ_OST_MAX = 9, /* Max MDT count before OST_on_FID */ + FID_SEQ_LLOG_NAME = 10, /* named llogs */ + FID_SEQ_RSVD = 11, + FID_SEQ_IGIF = 12, + FID_SEQ_IGIF_MAX = 0x0ffffffffULL, + FID_SEQ_IDIF = 0x100000000ULL, + FID_SEQ_IDIF_MAX = 0x1ffffffffULL, + /* Normal FID sequence starts from this value, i.e. 1<<33 */ + FID_SEQ_START = 0x200000000ULL, + /* sequence for local pre-defined FIDs listed in local_oid */ + FID_SEQ_LOCAL_FILE = 0x200000001ULL, + FID_SEQ_DOT_LUSTRE = 0x200000002ULL, + /* sequence is used for local named objects FIDs generated + * by local_object_storage library + */ + FID_SEQ_LOCAL_NAME = 0x200000003ULL, + /* Because current FLD will only cache the fid sequence, instead + * of oid on the client side, if the FID needs to be exposed to + * clients sides, it needs to make sure all of fids under one + * sequence will be located in one MDT. + */ + FID_SEQ_SPECIAL = 0x200000004ULL, + FID_SEQ_QUOTA = 0x200000005ULL, + FID_SEQ_QUOTA_GLB = 0x200000006ULL, + FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */ + FID_SEQ_NORMAL = 0x200000400ULL, + FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL +}; + +#define OBIF_OID_MAX_BITS 32 +#define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS) +#define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1) +#define IDIF_OID_MAX_BITS 48 +#define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS) +#define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1) + +/** OID for FID_SEQ_SPECIAL */ +enum special_oid { + /* Big Filesystem Lock to serialize rename operations */ + FID_OID_SPECIAL_BFL = 1UL, +}; + +/** OID for FID_SEQ_DOT_LUSTRE */ +enum dot_lustre_oid { + FID_OID_DOT_LUSTRE = 1UL, + FID_OID_DOT_LUSTRE_OBF = 2UL, +}; + +/** OID for FID_SEQ_ROOT */ +enum root_oid { + FID_OID_ROOT = 1UL, + FID_OID_ECHO_ROOT = 2UL, +}; + +/** @} lu_fid */ + +/** \defgroup lu_dir lu_dir + * @{ + */ + +/** + * Enumeration of possible directory entry attributes. + * + * Attributes follow directory entry header in the order they appear in this + * enumeration. + */ +enum lu_dirent_attrs { + LUDA_FID = 0x0001, + LUDA_TYPE = 0x0002, + LUDA_64BITHASH = 0x0004, +}; + +/** + * Layout of readdir pages, as transmitted on wire. + */ +struct lu_dirent { + /** valid if LUDA_FID is set. */ + struct lu_fid lde_fid; + /** a unique entry identifier: a hash or an offset. */ + __u64 lde_hash; + /** total record length, including all attributes. */ + __u16 lde_reclen; + /** name length */ + __u16 lde_namelen; + /** optional variable size attributes following this entry. + * taken from enum lu_dirent_attrs. + */ + __u32 lde_attrs; + /** name is followed by the attributes indicated in ->ldp_attrs, in + * their natural order. After the last attribute, padding bytes are + * added to make ->lde_reclen a multiple of 8. + */ + char lde_name[0]; +}; + +/* + * Definitions of optional directory entry attributes formats. + * + * Individual attributes do not have their length encoded in a generic way. It + * is assumed that consumer of an attribute knows its format. This means that + * it is impossible to skip over an unknown attribute, except by skipping over all + * remaining attributes (by using ->lde_reclen), which is not too + * constraining, because new server versions will append new attributes at + * the end of an entry. + */ + +/** + * Fid directory attribute: a fid of an object referenced by the entry. This + * will be almost always requested by the client and supplied by the server. + * + * Aligned to 8 bytes. + */ +/* To have compatibility with 1.8, lets have fid in lu_dirent struct. */ + +/** + * File type. + * + * Aligned to 2 bytes. + */ +struct luda_type { + __u16 lt_type; +}; + +#ifndef IFSHIFT +#define IFSHIFT 12 +#endif + +#ifndef IFTODT +#define IFTODT(type) (((type) & S_IFMT) >> IFSHIFT) +#endif +#ifndef DTTOIF +#define DTTOIF(dirtype) ((dirtype) << IFSHIFT) +#endif + +struct lu_dirpage { + __le64 ldp_hash_start; + __le64 ldp_hash_end; + __le32 ldp_flags; + __le32 ldp_pad0; + struct lu_dirent ldp_entries[0]; +}; + +enum lu_dirpage_flags { + /** + * dirpage contains no entry. + */ + LDF_EMPTY = 1 << 0, + /** + * last entry's lde_hash equals ldp_hash_end. + */ + LDF_COLLIDE = 1 << 1 +}; + +static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp) +{ + if (__le32_to_cpu(dp->ldp_flags) & LDF_EMPTY) + return NULL; + else + return dp->ldp_entries; +} + +static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent) +{ + struct lu_dirent *next; + + if (__le16_to_cpu(ent->lde_reclen) != 0) + next = ((void *)ent) + __le16_to_cpu(ent->lde_reclen); + else + next = NULL; + + return next; +} + +static inline size_t lu_dirent_calc_size(size_t namelen, __u16 attr) +{ + size_t size; + + if (attr & LUDA_TYPE) { + const size_t align = sizeof(struct luda_type) - 1; + + size = (sizeof(struct lu_dirent) + namelen + align) & ~align; + size += sizeof(struct luda_type); + } else { + size = sizeof(struct lu_dirent) + namelen; + } + + return (size + 7) & ~7; +} + +#define MDS_DIR_END_OFF 0xfffffffffffffffeULL + +/** + * MDS_READPAGE page size + * + * This is the directory page size packed in MDS_READPAGE RPC. + * It's different than PAGE_SIZE because the client needs to + * access the struct lu_dirpage header packed at the beginning of + * the "page" and without this there isn't any way to know find the + * lu_dirpage header is if client and server PAGE_SIZE differ. + */ +#define LU_PAGE_SHIFT 12 +#define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT) +#define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1)) + +#define LU_PAGE_COUNT (1 << (PAGE_SHIFT - LU_PAGE_SHIFT)) + +/** @} lu_dir */ + +struct lustre_handle { + __u64 cookie; +}; + +#define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL + +static inline bool lustre_handle_is_used(const struct lustre_handle *lh) +{ + return lh->cookie != 0ull; +} + +static inline bool lustre_handle_equal(const struct lustre_handle *lh1, + const struct lustre_handle *lh2) +{ + return lh1->cookie == lh2->cookie; +} + +static inline void lustre_handle_copy(struct lustre_handle *tgt, + const struct lustre_handle *src) +{ + tgt->cookie = src->cookie; +} + +/* flags for lm_flags */ +#define MSGHDR_AT_SUPPORT 0x1 +#define MSGHDR_CKSUM_INCOMPAT18 0x2 + +#define lustre_msg lustre_msg_v2 +/* we depend on this structure to be 8-byte aligned */ +/* this type is only endian-adjusted in lustre_unpack_msg() */ +struct lustre_msg_v2 { + __u32 lm_bufcount; + __u32 lm_secflvr; + __u32 lm_magic; + __u32 lm_repsize; + __u32 lm_cksum; + __u32 lm_flags; + __u32 lm_padding_2; + __u32 lm_padding_3; + __u32 lm_buflens[0]; +}; + +/* without gss, ptlrpc_body is put at the first buffer. */ +#define PTLRPC_NUM_VERSIONS 4 + +struct ptlrpc_body_v3 { + struct lustre_handle pb_handle; + __u32 pb_type; + __u32 pb_version; + __u32 pb_opc; + __u32 pb_status; + __u64 pb_last_xid; /* highest replied XID without lower unreplied XID */ + __u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */ + __u16 pb_padding0; + __u32 pb_padding1; + __u64 pb_last_committed; + __u64 pb_transno; + __u32 pb_flags; + __u32 pb_op_flags; + __u32 pb_conn_cnt; + __u32 pb_timeout; /* for req, the deadline, for rep, the service est */ + __u32 pb_service_time; /* for rep, actual service time */ + __u32 pb_limit; + __u64 pb_slv; + /* VBR: pre-versions */ + __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS]; + __u64 pb_mbits; /**< match bits for bulk request */ + /* padding for future needs */ + __u64 pb_padding64_0; + __u64 pb_padding64_1; + __u64 pb_padding64_2; + char pb_jobid[LUSTRE_JOBID_SIZE]; +}; + +#define ptlrpc_body ptlrpc_body_v3 + +struct ptlrpc_body_v2 { + struct lustre_handle pb_handle; + __u32 pb_type; + __u32 pb_version; + __u32 pb_opc; + __u32 pb_status; + __u64 pb_last_xid; /* highest replied XID without lower unreplied XID */ + __u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */ + __u16 pb_padding0; + __u32 pb_padding1; + __u64 pb_last_committed; + __u64 pb_transno; + __u32 pb_flags; + __u32 pb_op_flags; + __u32 pb_conn_cnt; + __u32 pb_timeout; /* for req, the deadline, for rep, the service est */ + __u32 pb_service_time; /* for rep, actual service time, also used for + * net_latency of req + */ + __u32 pb_limit; + __u64 pb_slv; + /* VBR: pre-versions */ + __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS]; + __u64 pb_mbits; /**< unused in V2 */ + /* padding for future needs */ + __u64 pb_padding64_0; + __u64 pb_padding64_1; + __u64 pb_padding64_2; +}; + +/* message body offset for lustre_msg_v2 */ +/* ptlrpc body offset in all request/reply messages */ +#define MSG_PTLRPC_BODY_OFF 0 + +/* normal request/reply message record offset */ +#define REQ_REC_OFF 1 +#define REPLY_REC_OFF 1 + +/* ldlm request message body offset */ +#define DLM_LOCKREQ_OFF 1 /* lockreq offset */ +#define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */ + +/* ldlm intent lock message body offset */ +#define DLM_INTENT_IT_OFF 2 /* intent lock it offset */ +#define DLM_INTENT_REC_OFF 3 /* intent lock record offset */ + +/* ldlm reply message body offset */ +#define DLM_LOCKREPLY_OFF 1 /* lockrep offset */ +#define DLM_REPLY_REC_OFF 2 /* reply record offset */ + +/** only use in req->rq_{req,rep}_swab_mask */ +#define MSG_PTLRPC_HEADER_OFF 31 + +/* Flags that are operation-specific go in the top 16 bits. */ +#define MSG_OP_FLAG_MASK 0xffff0000 +#define MSG_OP_FLAG_SHIFT 16 + +/* Flags that apply to all requests are in the bottom 16 bits */ +#define MSG_GEN_FLAG_MASK 0x0000ffff +#define MSG_LAST_REPLAY 0x0001 +#define MSG_RESENT 0x0002 +#define MSG_REPLAY 0x0004 +/* #define MSG_AT_SUPPORT 0x0008 + * This was used in early prototypes of adaptive timeouts, and while there + * shouldn't be any users of that code there also isn't a need for using this + * bits. Defer usage until at least 1.10 to avoid potential conflict. + */ +#define MSG_DELAY_REPLAY 0x0010 +#define MSG_VERSION_REPLAY 0x0020 +#define MSG_REQ_REPLAY_DONE 0x0040 +#define MSG_LOCK_REPLAY_DONE 0x0080 + +/* + * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT) + */ + +#define MSG_CONNECT_RECOVERING 0x00000001 +#define MSG_CONNECT_RECONNECT 0x00000002 +#define MSG_CONNECT_REPLAYABLE 0x00000004 +/*#define MSG_CONNECT_PEER 0x8 */ +#define MSG_CONNECT_LIBCLIENT 0x00000010 +#define MSG_CONNECT_INITIAL 0x00000020 +#define MSG_CONNECT_ASYNC 0x00000040 +#define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */ +#define MSG_CONNECT_TRANSNO 0x00000100 /* report transno */ + +/* Connect flags */ +#define OBD_CONNECT_RDONLY 0x1ULL /*client has read-only access*/ +#define OBD_CONNECT_INDEX 0x2ULL /*connect specific LOV idx */ +#define OBD_CONNECT_MDS 0x4ULL /*connect from MDT to OST */ +#define OBD_CONNECT_GRANT 0x8ULL /*OSC gets grant at connect */ +#define OBD_CONNECT_SRVLOCK 0x10ULL /*server takes locks for cli */ +#define OBD_CONNECT_VERSION 0x20ULL /*Lustre versions in ocd */ +#define OBD_CONNECT_REQPORTAL 0x40ULL /*Separate non-IO req portal */ +#define OBD_CONNECT_ACL 0x80ULL /*access control lists */ +#define OBD_CONNECT_XATTR 0x100ULL /*client use extended attr */ +#define OBD_CONNECT_CROW 0x200ULL /*MDS+OST create obj on write*/ +#define OBD_CONNECT_TRUNCLOCK 0x400ULL /*locks on server for punch */ +#define OBD_CONNECT_TRANSNO 0x800ULL /*replay sends init transno */ +#define OBD_CONNECT_IBITS 0x1000ULL /*support for inodebits locks*/ +#define OBD_CONNECT_JOIN 0x2000ULL /*files can be concatenated. + *We do not support JOIN FILE + *anymore, reserve this flags + *just for preventing such bit + *to be reused. + */ +#define OBD_CONNECT_ATTRFID 0x4000ULL /*Server can GetAttr By Fid*/ +#define OBD_CONNECT_NODEVOH 0x8000ULL /*No open hndl on specl nodes*/ +#define OBD_CONNECT_RMT_CLIENT 0x10000ULL /* Remote client, never used + * in production. Removed in + * 2.9. Keep this flag to + * avoid reuse. + */ +#define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Remote client by force, + * never used in production. + * Removed in 2.9. Keep this + * flag to avoid reuse + */ +#define OBD_CONNECT_BRW_SIZE 0x40000ULL /*Max bytes per rpc */ +#define OBD_CONNECT_QUOTA64 0x80000ULL /*Not used since 2.4 */ +#define OBD_CONNECT_MDS_CAPA 0x100000ULL /*MDS capability */ +#define OBD_CONNECT_OSS_CAPA 0x200000ULL /*OSS capability */ +#define OBD_CONNECT_CANCELSET 0x400000ULL /*Early batched cancels. */ +#define OBD_CONNECT_SOM 0x800000ULL /*Size on MDS */ +#define OBD_CONNECT_AT 0x1000000ULL /*client uses AT */ +#define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /*LRU resize feature. */ +#define OBD_CONNECT_MDS_MDS 0x4000000ULL /*MDS-MDS connection */ +#define OBD_CONNECT_REAL 0x8000000ULL /* obsolete since 2.8 */ +#define OBD_CONNECT_CHANGE_QS 0x10000000ULL /*Not used since 2.4 */ +#define OBD_CONNECT_CKSUM 0x20000000ULL /*support several cksum algos*/ +#define OBD_CONNECT_FID 0x40000000ULL /*FID is supported by server */ +#define OBD_CONNECT_VBR 0x80000000ULL /*version based recovery */ +#define OBD_CONNECT_LOV_V3 0x100000000ULL /*client supports LOV v3 EA */ +#define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* support grant shrink */ +#define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* don't reuse orphan objids */ +#define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* preserved for large EA */ +#define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */ +#define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client uses layout lock */ +#define OBD_CONNECT_64BITHASH 0x4000000000ULL /* client supports 64-bits + * directory hash + */ +#define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */ +#define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recovery support */ +#define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* jobid in ptlrpc_body */ +#define OBD_CONNECT_UMASK 0x40000000000ULL /* create uses client umask */ +#define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS + * RPC error properly + */ +#define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for + * finer space reservation + */ +#define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8 + * policy and 2.x server + */ +#define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable type of LVB */ +#define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */ +#define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */ +#define OBD_CONNECT_SHORTIO 0x2000000000000ULL/* short io */ +#define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */ +#define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* flock deadlock detection */ +#define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/*create stripe disposition*/ +#define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack + * name in request + */ +#define OBD_CONNECT_LFSCK 0x40000000000000ULL/* support online LFSCK */ +#define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL/* close file in unlink */ +#define OBD_CONNECT_MULTIMODRPCS 0x200000000000000ULL /* support multiple modify + * RPCs in parallel + */ +#define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL/* striped DNE dir */ +#define OBD_CONNECT_SUBTREE 0x800000000000000ULL /* fileset mount */ +#define OBD_CONNECT_LOCK_AHEAD 0x1000000000000000ULL /* lock ahead */ +/** bulk matchbits is sent within ptlrpc_body */ +#define OBD_CONNECT_BULK_MBITS 0x2000000000000000ULL +#define OBD_CONNECT_OBDOPACK 0x4000000000000000ULL /* compact OUT obdo */ +#define OBD_CONNECT_FLAGS2 0x8000000000000000ULL /* second flags word */ + +/* XXX README XXX: + * Please DO NOT add flag values here before first ensuring that this same + * flag value is not in use on some other branch. Please clear any such + * changes with senior engineers before starting to use a new flag. Then, + * submit a small patch against EVERY branch that ONLY adds the new flag, + * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the + * flag to check_obd_connect_data(), and updates wiretests accordingly, so it + * can be approved and landed easily to reserve the flag for future use. + */ + +/* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS + * connection. It is a temporary bug fix for Imperative Recovery interop + * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for + * 2.2 clients/servers is no longer needed. LU-1252/LU-1644. + */ +#define OBD_CONNECT_MNE_SWAB OBD_CONNECT_MDS_MDS + +#define OCD_HAS_FLAG(ocd, flg) \ + (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg)) + +/* Features required for this version of the client to work with server */ +#define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \ + OBD_CONNECT_FULL20) + +/* This structure is used for both request and reply. + * + * If we eventually have separate connect data for different types, which we + * almost certainly will, then perhaps we stick a union in here. + */ +struct obd_connect_data { + __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */ + __u32 ocd_version; /* lustre release version number */ + __u32 ocd_grant; /* initial cache grant amount (bytes) */ + __u32 ocd_index; /* LOV index to connect to */ + __u32 ocd_brw_size; /* Maximum BRW size in bytes */ + __u64 ocd_ibits_known; /* inode bits this client understands */ + __u8 ocd_blocksize; /* log2 of the backend filesystem blocksize */ + __u8 ocd_inodespace; /* log2 of the per-inode space consumption */ + __u16 ocd_grant_extent; /* per-extent grant overhead, in 1K blocks */ + __u32 ocd_unused; /* also fix lustre_swab_connect */ + __u64 ocd_transno; /* first transno from client to be replayed */ + __u32 ocd_group; /* MDS group on OST */ + __u32 ocd_cksum_types; /* supported checksum algorithms */ + __u32 ocd_max_easize; /* How big LOV EA can be on MDS */ + __u32 ocd_instance; /* instance # of this target */ + __u64 ocd_maxbytes; /* Maximum stripe size in bytes */ + /* Fields after ocd_maxbytes are only accessible by the receiver + * if the corresponding flag in ocd_connect_flags is set. Accessing + * any field after ocd_maxbytes on the receiver without a valid flag + * may result in out-of-bound memory access and kernel oops. + */ + __u16 ocd_maxmodrpcs; /* Maximum modify RPCs in parallel */ + __u16 padding0; /* added 2.1.0. also fix lustre_swab_connect */ + __u32 padding1; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 ocd_connect_flags2; + __u64 padding3; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding4; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding5; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding6; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding7; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding8; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 padding9; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingA; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingB; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingC; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingD; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingE; /* added 2.1.0. also fix lustre_swab_connect */ + __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */ +}; + +/* XXX README XXX: + * Please DO NOT use any fields here before first ensuring that this same + * field is not in use on some other branch. Please clear any such changes + * with senior engineers before starting to use a new field. Then, submit + * a small patch against EVERY branch that ONLY adds the new field along with + * the matching OBD_CONNECT flag, so that can be approved and landed easily to + * reserve the flag for future use. + */ + +/* + * Supported checksum algorithms. Up to 32 checksum types are supported. + * (32-bit mask stored in obd_connect_data::ocd_cksum_types) + * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new + * algorithm and also the OBD_FL_CKSUM* flags. + */ +enum cksum_type { + OBD_CKSUM_CRC32 = 0x00000001, + OBD_CKSUM_ADLER = 0x00000002, + OBD_CKSUM_CRC32C = 0x00000004, +}; + +/* + * OST requests: OBDO & OBD request records + */ + +/* opcodes */ +enum ost_cmd { + OST_REPLY = 0, /* reply ? */ + OST_GETATTR = 1, + OST_SETATTR = 2, + OST_READ = 3, + OST_WRITE = 4, + OST_CREATE = 5, + OST_DESTROY = 6, + OST_GET_INFO = 7, + OST_CONNECT = 8, + OST_DISCONNECT = 9, + OST_PUNCH = 10, + OST_OPEN = 11, + OST_CLOSE = 12, + OST_STATFS = 13, + OST_SYNC = 16, + OST_SET_INFO = 17, + OST_QUOTACHECK = 18, /* not used since 2.4 */ + OST_QUOTACTL = 19, + OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */ + OST_LAST_OPC +}; +#define OST_FIRST_OPC OST_REPLY + +enum obdo_flags { + OBD_FL_INLINEDATA = 0x00000001, + OBD_FL_OBDMDEXISTS = 0x00000002, + OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */ + OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */ + OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/ + OBD_FL_RECREATE_OBJS = 0x00000020, /* recreate missing obj */ + OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */ + OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */ + OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */ + OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */ + OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */ + OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */ + OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */ + OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */ + OBD_FL_CKSUM_RSVD2 = 0x00008000, /* for future cksum types */ + OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */ + OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */ + OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client. + * XXX: obsoleted - reserved for old + * clients prior than 2.2 + */ + OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */ + OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */ + OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */ + OBD_FL_SHORT_IO = 0x00400000, /* short io request */ + + /* Note that while these checksum values are currently separate bits, + * in 2.x we can actually allow all values from 1-31 if we wanted. + */ + OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER | + OBD_FL_CKSUM_CRC32C, + + /* mask for local-only flag, which won't be sent over network */ + OBD_FL_LOCAL_MASK = 0xF0000000, +}; + +/* + * All LOV EA magics should have the same postfix, if some new version + * Lustre instroduces new LOV EA magic, then when down-grade to an old + * Lustre, even though the old version system does not recognizes such + * new magic, it still can distinguish the corrupted cases by checking + * the magic's postfix. + */ +#define LOV_MAGIC_MAGIC 0x0BD0 +#define LOV_MAGIC_MASK 0xFFFF + +#define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC) +#define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC) +#define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC) +#define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC) +/* reserved for specifying OSTs */ +#define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC) +#define LOV_MAGIC LOV_MAGIC_V1 + +/* + * magic for fully defined striping + * the idea is that we should have different magics for striping "hints" + * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct + * lov_mds_md_v[13]). at the moment the magics are used in wire protocol, + * we can't just change it w/o long way preparation, but we still need a + * mechanism to allow LOD to differentiate hint versus ready striping. + * so, at the moment we do a trick: MDT knows what to expect from request + * depending on the case (replay uses ready striping, non-replay req uses + * hints), so MDT replaces magic with appropriate one and now LOD can + * easily understand what's inside -bzzz + */ +#define LOV_MAGIC_V1_DEF 0x0CD10BD0 +#define LOV_MAGIC_V3_DEF 0x0CD30BD0 + +#define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK) +#define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK) + +#define lov_ost_data lov_ost_data_v1 +struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/ + struct ost_id l_ost_oi; /* OST object ID */ + __u32 l_ost_gen; /* generation of this l_ost_idx */ + __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */ +}; + +#define lov_mds_md lov_mds_md_v1 +struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */ + __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */ + __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ + struct ost_id lmm_oi; /* LOV object ID */ + __u32 lmm_stripe_size; /* size of stripe in bytes */ + /* lmm_stripe_count used to be __u32 */ + __u16 lmm_stripe_count; /* num stripes in use for this object */ + __u16 lmm_layout_gen; /* layout generation number */ + struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */ +}; + +#define MAX_MD_SIZE \ + (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data)) +#define MIN_MD_SIZE \ + (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data)) + +#define XATTR_NAME_ACL_ACCESS "system.posix_acl_access" +#define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default" +#define XATTR_USER_PREFIX "user." +#define XATTR_TRUSTED_PREFIX "trusted." +#define XATTR_SECURITY_PREFIX "security." +#define XATTR_LUSTRE_PREFIX "lustre." + +#define XATTR_NAME_LOV "trusted.lov" +#define XATTR_NAME_LMA "trusted.lma" +#define XATTR_NAME_LMV "trusted.lmv" +#define XATTR_NAME_DEFAULT_LMV "trusted.dmv" +#define XATTR_NAME_LINK "trusted.link" +#define XATTR_NAME_FID "trusted.fid" +#define XATTR_NAME_VERSION "trusted.version" +#define XATTR_NAME_SOM "trusted.som" +#define XATTR_NAME_HSM "trusted.hsm" +#define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_namespace" + +struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */ + __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */ + __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */ + struct ost_id lmm_oi; /* LOV object ID */ + __u32 lmm_stripe_size; /* size of stripe in bytes */ + /* lmm_stripe_count used to be __u32 */ + __u16 lmm_stripe_count; /* num stripes in use for this object */ + __u16 lmm_layout_gen; /* layout generation number */ + char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* must be 32bit aligned */ + struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */ +}; + +static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic) +{ + if (lmm_magic == LOV_MAGIC_V3) + return sizeof(struct lov_mds_md_v3) + + stripes * sizeof(struct lov_ost_data_v1); + else + return sizeof(struct lov_mds_md_v1) + + stripes * sizeof(struct lov_ost_data_v1); +} + +static inline __u32 +lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic) +{ + switch (lmm_magic) { + case LOV_MAGIC_V1: { + struct lov_mds_md_v1 lmm; + + if (buf_size < sizeof(lmm)) + return 0; + + return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]); + } + case LOV_MAGIC_V3: { + struct lov_mds_md_v3 lmm; + + if (buf_size < sizeof(lmm)) + return 0; + + return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]); + } + default: + return 0; + } +} + +#define OBD_MD_FLID (0x00000001ULL) /* object ID */ +#define OBD_MD_FLATIME (0x00000002ULL) /* access time */ +#define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */ +#define OBD_MD_FLCTIME (0x00000008ULL) /* change time */ +#define OBD_MD_FLSIZE (0x00000010ULL) /* size */ +#define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */ +#define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */ +#define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */ +#define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */ +#define OBD_MD_FLUID (0x00000200ULL) /* user ID */ +#define OBD_MD_FLGID (0x00000400ULL) /* group ID */ +#define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */ +#define OBD_MD_FLNLINK (0x00002000ULL) /* link count */ +#define OBD_MD_FLGENER (0x00004000ULL) /* generation number */ +/*#define OBD_MD_FLINLINE (0x00008000ULL) inline data. used until 1.6.5 */ +#define OBD_MD_FLRDEV (0x00010000ULL) /* device number */ +#define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */ +#define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */ +#define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */ +#define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */ +#define OBD_MD_FLQOS (0x00200000ULL) /* quality of service stats */ +/*#define OBD_MD_FLOSCOPQ (0x00400000ULL) osc opaque data, never used */ +/* OBD_MD_FLCOOKIE (0x00800000ULL) obsolete in 2.8 */ +#define OBD_MD_FLGROUP (0x01000000ULL) /* group */ +#define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */ +#define OBD_MD_FLEPOCH (0x04000000ULL) /* ->ost write with ioepoch */ + /* ->mds if epoch opens or closes + */ +#define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */ +#define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */ +#define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */ +#define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */ +#define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */ + +#define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */ +#define OBD_MD_REINT (0x0000000200000000ULL) /* reintegrate oa */ +#define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */ +#define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */ + +#define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */ +#define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */ +#define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */ +#define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */ +/* OBD_MD_FLRMTPERM (0x0000010000000000ULL) remote perm, obsolete */ +#define OBD_MD_FLMDSCAPA (0x0000020000000000ULL) /* MDS capability */ +#define OBD_MD_FLOSSCAPA (0x0000040000000000ULL) /* OSS capability */ +#define OBD_MD_FLCKSPLIT (0x0000080000000000ULL) /* Check split on server */ +#define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */ +#define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes + * under lock; for xattr + * requests means the + * client holds the lock + */ +#define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */ + +/* OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) lfs lsetfacl, obsolete */ +/* OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) lfs lgetfacl, obsolete */ +/* OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) lfs rsetfacl, obsolete */ +/* OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) lfs rgetfacl, obsolete */ + +#define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */ +#define OBD_MD_CLOSE_INTENT_EXECED (0x0020000000000000ULL) /* close intent + * executed + */ + +#define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */ + +#define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \ + OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \ + OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \ + OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \ + OBD_MD_FLGENER | OBD_MD_FLRDEV | OBD_MD_FLGROUP) + +#define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS) + +/* don't forget obdo_fid which is way down at the bottom so it can + * come after the definition of llog_cookie + */ + +enum hss_valid { + HSS_SETMASK = 0x01, + HSS_CLEARMASK = 0x02, + HSS_ARCHIVE_ID = 0x04, +}; + +struct hsm_state_set { + __u32 hss_valid; + __u32 hss_archive_id; + __u64 hss_setmask; + __u64 hss_clearmask; +}; + +/* ost_body.data values for OST_BRW */ + +#define OBD_BRW_READ 0x01 +#define OBD_BRW_WRITE 0x02 +#define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE) +#define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous + * transfer and is not accounted in + * the grant. + */ +#define OBD_BRW_CHECK 0x10 +#define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */ +#define OBD_BRW_GRANTED 0x40 /* the ost manages this */ +#define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */ +#define OBD_BRW_NOQUOTA 0x100 +#define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */ +#define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */ +#define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */ +#define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */ +#define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */ +#define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server + * that the client is running low on + * space for unstable pages; asking + * it to sync quickly + */ + +#define OBD_OBJECT_EOF LUSTRE_EOF + +#define OST_MIN_PRECREATE 32 +#define OST_MAX_PRECREATE 20000 + +struct obd_ioobj { + struct ost_id ioo_oid; /* object ID, if multi-obj BRW */ + __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4, + * now (PTLRPC_BULK_OPS_COUNT - 1) in + * high 16 bits in 2.4 and later + */ + __u32 ioo_bufcnt; /* number of niobufs for this object */ +}; + +/* + * 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_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1) +#define ioobj_max_brw_set(ioo, num) \ +do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0) + +/* 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) \ + do { blocks = OST_LVB_ERR_INIT + rc; } while (0) +#define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT) + +struct ost_lvb_v1 { + __u64 lvb_size; + __s64 lvb_mtime; + __s64 lvb_atime; + __s64 lvb_ctime; + __u64 lvb_blocks; +}; + +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 a union of all the possible identifier types that + * can be used with quota, this includes: + * - 64-bit user ID + * - 64-bit group ID + * - a FID which can be used for per-directory quota in the future + */ +union lquota_id { + struct lu_fid qid_fid; /* FID for per-directory quota */ + __u64 qid_uid; /* user identifier */ + __u64 qid_gid; /* group identifier */ +}; + +/* quotactl management */ +struct obd_quotactl { + __u32 qc_cmd; + __u32 qc_type; /* see Q_* flag below */ + __u32 qc_id; + __u32 qc_stat; + struct obd_dqinfo qc_dqinfo; + struct obd_dqblk qc_dqblk; +}; + +#define Q_COPY(out, in, member) (out)->member = (in)->member + +#define QCTL_COPY(out, in) \ +do { \ + Q_COPY(out, in, qc_cmd); \ + Q_COPY(out, in, qc_type); \ + Q_COPY(out, in, qc_id); \ + Q_COPY(out, in, qc_stat); \ + Q_COPY(out, in, qc_dqinfo); \ + Q_COPY(out, in, qc_dqblk); \ +} while (0) + +/* Data structures associated with the quota locks */ + +/* Glimpse descriptor used for the index & per-ID quota locks */ +struct ldlm_gl_lquota_desc { + union lquota_id gl_id; /* quota ID subject to the glimpse */ + __u64 gl_flags; /* see LQUOTA_FL* below */ + __u64 gl_ver; /* new index version */ + __u64 gl_hardlimit; /* new hardlimit or qunit value */ + __u64 gl_softlimit; /* new softlimit */ + __u64 gl_time; + __u64 gl_pad2; +}; + +/* quota glimpse flags */ +#define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */ + +/* LVB used with quota (global and per-ID) locks */ +struct lquota_lvb { + __u64 lvb_flags; /* see LQUOTA_FL* above */ + __u64 lvb_id_may_rel; /* space that might be released later */ + __u64 lvb_id_rel; /* space released by the slave for this ID */ + __u64 lvb_id_qunit; /* current qunit value */ + __u64 lvb_pad1; +}; + +/* op codes */ +enum quota_cmd { + QUOTA_DQACQ = 601, + QUOTA_DQREL = 602, + QUOTA_LAST_OPC +}; +#define QUOTA_FIRST_OPC QUOTA_DQACQ + +/* + * MDS REQ RECORDS + */ + +/* opcodes */ +enum mds_cmd { + MDS_GETATTR = 33, + MDS_GETATTR_NAME = 34, + MDS_CLOSE = 35, + MDS_REINT = 36, + MDS_READPAGE = 37, + MDS_CONNECT = 38, + MDS_DISCONNECT = 39, + MDS_GETSTATUS = 40, + MDS_STATFS = 41, + MDS_PIN = 42, /* obsolete, never used in a release */ + MDS_UNPIN = 43, /* obsolete, never used in a release */ + MDS_SYNC = 44, + MDS_DONE_WRITING = 45, /* 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_LAST_OPC +}; + +#define MDS_FIRST_OPC MDS_GETATTR + +/* + * Do not exceed 63 + */ + +enum mdt_reint_cmd { + REINT_SETATTR = 1, + REINT_CREATE = 2, + REINT_LINK = 3, + REINT_UNLINK = 4, + REINT_RENAME = 5, + REINT_OPEN = 6, + REINT_SETXATTR = 7, + REINT_RMENTRY = 8, + REINT_MIGRATE = 9, + REINT_MAX +}; + +/* the disposition of the intent outlines what was executed */ +#define DISP_IT_EXECD 0x00000001 +#define DISP_LOOKUP_EXECD 0x00000002 +#define DISP_LOOKUP_NEG 0x00000004 +#define DISP_LOOKUP_POS 0x00000008 +#define DISP_OPEN_CREATE 0x00000010 +#define DISP_OPEN_OPEN 0x00000020 +#define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */ +#define DISP_ENQ_OPEN_REF 0x00800000 +#define DISP_ENQ_CREATE_REF 0x01000000 +#define DISP_OPEN_LOCK 0x02000000 +#define DISP_OPEN_LEASE 0x04000000 +#define DISP_OPEN_STRIPE 0x08000000 +#define DISP_OPEN_DENY 0x10000000 + +/* INODE LOCK PARTS */ +#define MDS_INODELOCK_LOOKUP 0x000001 /* For namespace, dentry etc, and also + * was used to protect permission (mode, + * owner, group etc) before 2.4. + */ +#define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */ +#define MDS_INODELOCK_OPEN 0x000004 /* For opened files */ +#define MDS_INODELOCK_LAYOUT 0x000008 /* for layout */ + +/* The PERM bit is added int 2.4, and it is used to protect permission(mode, + * owner, group, acl etc), so to separate the permission from LOOKUP lock. + * Because for remote directories(in DNE), these locks will be granted by + * different MDTs(different ldlm namespace). + * + * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together. + * For Remote directory, the master MDT, where the remote directory is, will + * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is, + * will grant LOOKUP_LOCK. + */ +#define MDS_INODELOCK_PERM 0x000010 +#define MDS_INODELOCK_XATTR 0x000020 /* extended attributes */ + +#define MDS_INODELOCK_MAXSHIFT 5 +/* This FULL lock is useful to take on unlink sort of operations */ +#define MDS_INODELOCK_FULL ((1 << (MDS_INODELOCK_MAXSHIFT + 1)) - 1) + +/* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2], + * but was moved into name[1] along with the OID to avoid consuming the + * name[2,3] fields that need to be used for the quota id (also a FID). + */ +enum { + LUSTRE_RES_ID_SEQ_OFF = 0, + LUSTRE_RES_ID_VER_OID_OFF = 1, + LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */ + LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2, + LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3, + LUSTRE_RES_ID_HSH_OFF = 3 +}; + +#define MDS_STATUS_CONN 1 +#define MDS_STATUS_LOV 2 + +/* these should be identical to their EXT4_*_FL counterparts, they are + * redefined here only to avoid dragging in fs/ext4/ext4.h + */ +#define LUSTRE_SYNC_FL 0x00000008 /* Synchronous updates */ +#define LUSTRE_IMMUTABLE_FL 0x00000010 /* Immutable file */ +#define LUSTRE_APPEND_FL 0x00000020 /* writes to file may only append */ +#define LUSTRE_NODUMP_FL 0x00000040 /* do not dump file */ +#define LUSTRE_NOATIME_FL 0x00000080 /* do not update atime */ +#define LUSTRE_INDEX_FL 0x00001000 /* hash-indexed directory */ +#define LUSTRE_DIRSYNC_FL 0x00010000 /* dirsync behaviour (dir only) */ +#define LUSTRE_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ +#define LUSTRE_DIRECTIO_FL 0x00100000 /* Use direct i/o */ +#define LUSTRE_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */ + +/* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values + * for the client inode i_flags. The LUSTRE_*_FL are the Lustre wire + * protocol equivalents of LDISKFS_*_FL values stored on disk, while + * the S_* flags are kernel-internal values that change between kernel + * versions. These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS. + * See b=16526 for a full history. + */ +static inline int ll_ext_to_inode_flags(int flags) +{ + return (((flags & LUSTRE_SYNC_FL) ? S_SYNC : 0) | + ((flags & LUSTRE_NOATIME_FL) ? S_NOATIME : 0) | + ((flags & LUSTRE_APPEND_FL) ? S_APPEND : 0) | + ((flags & LUSTRE_DIRSYNC_FL) ? S_DIRSYNC : 0) | + ((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0)); +} + +static inline int ll_inode_to_ext_flags(int iflags) +{ + return (((iflags & S_SYNC) ? LUSTRE_SYNC_FL : 0) | + ((iflags & S_NOATIME) ? LUSTRE_NOATIME_FL : 0) | + ((iflags & S_APPEND) ? LUSTRE_APPEND_FL : 0) | + ((iflags & S_DIRSYNC) ? LUSTRE_DIRSYNC_FL : 0) | + ((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0)); +} + +/* 64 possible states */ +enum md_transient_state { + MS_RESTORE = (1 << 0), /* restore is running */ +}; + +struct mdt_body { + struct lu_fid mbo_fid1; + struct lu_fid mbo_fid2; + struct lustre_handle mbo_handle; + __u64 mbo_valid; + __u64 mbo_size; /* Offset, in the case of MDS_READPAGE */ + __s64 mbo_mtime; + __s64 mbo_atime; + __s64 mbo_ctime; + __u64 mbo_blocks; /* XID, in the case of MDS_READPAGE */ + __u64 mbo_ioepoch; + __u64 mbo_t_state; /* transient file state defined in + * enum md_transient_state + * was "ino" until 2.4.0 + */ + __u32 mbo_fsuid; + __u32 mbo_fsgid; + __u32 mbo_capability; + __u32 mbo_mode; + __u32 mbo_uid; + __u32 mbo_gid; + __u32 mbo_flags; /* LUSTRE_*_FL file attributes */ + __u32 mbo_rdev; + __u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */ + __u32 mbo_unused2; /* was "generation" until 2.4.0 */ + __u32 mbo_suppgid; + __u32 mbo_eadatasize; + __u32 mbo_aclsize; + __u32 mbo_max_mdsize; + __u32 mbo_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_padding_5; /* also fix lustre_swab_mdt_body */ + __u64 mbo_padding_6; + __u64 mbo_padding_7; + __u64 mbo_padding_8; + __u64 mbo_padding_9; + __u64 mbo_padding_10; +}; /* 216 */ + +struct mdt_ioepoch { + struct lustre_handle mio_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_fsuid_h; + __u32 sa_fsgid; + __u32 sa_fsgid_h; + __u32 sa_suppgid; + __u32 sa_suppgid_h; + __u32 sa_padding_1; + __u32 sa_padding_1_h; + struct lu_fid sa_fid; + __u64 sa_valid; + __u32 sa_uid; + __u32 sa_gid; + __u64 sa_size; + __u64 sa_blocks; + __s64 sa_mtime; + __s64 sa_atime; + __s64 sa_ctime; + __u32 sa_attr_flags; + __u32 sa_mode; + __u32 sa_bias; /* some operation flags */ + __u32 sa_padding_3; + __u32 sa_padding_4; + __u32 sa_padding_5; +}; + +/* + * Attribute flags used in mdt_rec_setattr::sa_valid. + * The kernel's #defines for ATTR_* should not be used over the network + * since the client and MDS may run different kernels (see bug 13828) + * Therefore, we should only use MDS_ATTR_* attributes for sa_valid. + */ +#define MDS_ATTR_MODE 0x1ULL /* = 1 */ +#define MDS_ATTR_UID 0x2ULL /* = 2 */ +#define MDS_ATTR_GID 0x4ULL /* = 4 */ +#define MDS_ATTR_SIZE 0x8ULL /* = 8 */ +#define MDS_ATTR_ATIME 0x10ULL /* = 16 */ +#define MDS_ATTR_MTIME 0x20ULL /* = 32 */ +#define MDS_ATTR_CTIME 0x40ULL /* = 64 */ +#define MDS_ATTR_ATIME_SET 0x80ULL /* = 128 */ +#define MDS_ATTR_MTIME_SET 0x100ULL /* = 256 */ +#define MDS_ATTR_FORCE 0x200ULL /* = 512, Not a change, but a change it */ +#define MDS_ATTR_ATTR_FLAG 0x400ULL /* = 1024 */ +#define MDS_ATTR_KILL_SUID 0x800ULL /* = 2048 */ +#define MDS_ATTR_KILL_SGID 0x1000ULL /* = 4096 */ +#define MDS_ATTR_CTIME_SET 0x2000ULL /* = 8192 */ +#define MDS_ATTR_FROM_OPEN 0x4000ULL /* = 16384, called from open path, + * ie O_TRUNC + */ +#define MDS_ATTR_BLOCKS 0x8000ULL /* = 32768 */ + +#define MDS_FMODE_CLOSED 00000000 +#define MDS_FMODE_EXEC 00000004 +/* MDS_FMODE_EPOCH 01000000 obsolete since 2.8.0 */ +/* MDS_FMODE_TRUNC 02000000 obsolete since 2.8.0 */ +/* MDS_FMODE_SOM 04000000 obsolete since 2.8.0 */ + +#define MDS_OPEN_CREATED 00000010 +#define MDS_OPEN_CROSS 00000020 + +#define MDS_OPEN_CREAT 00000100 +#define MDS_OPEN_EXCL 00000200 +#define MDS_OPEN_TRUNC 00001000 +#define MDS_OPEN_APPEND 00002000 +#define MDS_OPEN_SYNC 00010000 +#define MDS_OPEN_DIRECTORY 00200000 + +#define MDS_OPEN_BY_FID 040000000 /* open_by_fid for known object */ +#define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */ +#define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */ +#define MDS_OPEN_JOIN_FILE 0400000000 /* open for join file. + * We do not support JOIN FILE + * anymore, reserve this flags + * just for preventing such bit + * to be reused. + */ + +#define MDS_OPEN_LOCK 04000000000 /* This open requires open lock */ +#define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */ +#define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */ +#define MDS_OPEN_NORESTORE 0100000000000ULL /* Do not restore file at open */ +#define MDS_OPEN_NEWSTRIPE 0200000000000ULL /* New stripe needed (restripe or + * hsm restore) */ +#define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created + unlinked */ +#define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease + * delegation, succeed if it's not + * being opened with conflict mode. + */ +#define MDS_OPEN_RELEASE 02000000000000ULL /* Open the file for HSM release */ + +#define MDS_OPEN_FL_INTERNAL (MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS | \ + MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK | \ + MDS_OPEN_BY_FID | MDS_OPEN_LEASE | \ + MDS_OPEN_RELEASE) + +enum mds_op_bias { + MDS_CHECK_SPLIT = 1 << 0, + MDS_CROSS_REF = 1 << 1, + MDS_VTX_BYPASS = 1 << 2, + MDS_PERM_BYPASS = 1 << 3, +/* MDS_SOM = 1 << 4, obsolete since 2.8.0 */ + MDS_QUOTA_IGNORE = 1 << 5, + MDS_CLOSE_CLEANUP = 1 << 6, + MDS_KEEP_ORPHAN = 1 << 7, + MDS_RECOV_OPEN = 1 << 8, + MDS_DATA_MODIFIED = 1 << 9, + MDS_CREATE_VOLATILE = 1 << 10, + MDS_OWNEROVERRIDE = 1 << 11, + MDS_HSM_RELEASE = 1 << 12, + MDS_RENAME_MIGRATE = 1 << 13, + MDS_CLOSE_LAYOUT_SWAP = 1 << 14, +}; + +/* instance of mdt_reint_rec */ +struct mdt_rec_create { + __u32 cr_opcode; + __u32 cr_cap; + __u32 cr_fsuid; + __u32 cr_fsuid_h; + __u32 cr_fsgid; + __u32 cr_fsgid_h; + __u32 cr_suppgid1; + __u32 cr_suppgid1_h; + __u32 cr_suppgid2; + __u32 cr_suppgid2_h; + struct lu_fid cr_fid1; + struct lu_fid cr_fid2; + struct lustre_handle cr_old_handle; /* handle in case of open replay */ + __s64 cr_time; + __u64 cr_rdev; + __u64 cr_ioepoch; + __u64 cr_padding_1; /* rr_blocks */ + __u32 cr_mode; + __u32 cr_bias; + /* use of helpers set/get_mrc_cr_flags() is needed to access + * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to + * extend cr_flags size without breaking 1.8 compat + */ + __u32 cr_flags_l; /* for use with open, low 32 bits */ + __u32 cr_flags_h; /* for use with open, high 32 bits */ + __u32 cr_umask; /* umask for create */ + __u32 cr_padding_4; /* rr_padding_4 */ +}; + +/* instance of mdt_reint_rec */ +struct mdt_rec_link { + __u32 lk_opcode; + __u32 lk_cap; + __u32 lk_fsuid; + __u32 lk_fsuid_h; + __u32 lk_fsgid; + __u32 lk_fsgid_h; + __u32 lk_suppgid1; + __u32 lk_suppgid1_h; + __u32 lk_suppgid2; + __u32 lk_suppgid2_h; + struct lu_fid lk_fid1; + struct lu_fid lk_fid2; + __s64 lk_time; + __u64 lk_padding_1; /* rr_atime */ + __u64 lk_padding_2; /* rr_ctime */ + __u64 lk_padding_3; /* rr_size */ + __u64 lk_padding_4; /* rr_blocks */ + __u32 lk_bias; + __u32 lk_padding_5; /* rr_mode */ + __u32 lk_padding_6; /* rr_flags */ + __u32 lk_padding_7; /* rr_padding_2 */ + __u32 lk_padding_8; /* rr_padding_3 */ + __u32 lk_padding_9; /* rr_padding_4 */ +}; + +/* instance of mdt_reint_rec */ +struct mdt_rec_unlink { + __u32 ul_opcode; + __u32 ul_cap; + __u32 ul_fsuid; + __u32 ul_fsuid_h; + __u32 ul_fsgid; + __u32 ul_fsgid_h; + __u32 ul_suppgid1; + __u32 ul_suppgid1_h; + __u32 ul_suppgid2; + __u32 ul_suppgid2_h; + struct lu_fid ul_fid1; + struct lu_fid ul_fid2; + __s64 ul_time; + __u64 ul_padding_2; /* rr_atime */ + __u64 ul_padding_3; /* rr_ctime */ + __u64 ul_padding_4; /* rr_size */ + __u64 ul_padding_5; /* rr_blocks */ + __u32 ul_bias; + __u32 ul_mode; + __u32 ul_padding_6; /* rr_flags */ + __u32 ul_padding_7; /* rr_padding_2 */ + __u32 ul_padding_8; /* rr_padding_3 */ + __u32 ul_padding_9; /* rr_padding_4 */ +}; + +/* instance of mdt_reint_rec */ +struct mdt_rec_rename { + __u32 rn_opcode; + __u32 rn_cap; + __u32 rn_fsuid; + __u32 rn_fsuid_h; + __u32 rn_fsgid; + __u32 rn_fsgid_h; + __u32 rn_suppgid1; + __u32 rn_suppgid1_h; + __u32 rn_suppgid2; + __u32 rn_suppgid2_h; + struct lu_fid rn_fid1; + struct lu_fid rn_fid2; + __s64 rn_time; + __u64 rn_padding_1; /* rr_atime */ + __u64 rn_padding_2; /* rr_ctime */ + __u64 rn_padding_3; /* rr_size */ + __u64 rn_padding_4; /* rr_blocks */ + __u32 rn_bias; /* some operation flags */ + __u32 rn_mode; /* cross-ref rename has mode */ + __u32 rn_padding_5; /* rr_flags */ + __u32 rn_padding_6; /* rr_padding_2 */ + __u32 rn_padding_7; /* rr_padding_3 */ + __u32 rn_padding_8; /* rr_padding_4 */ +}; + +/* instance of mdt_reint_rec */ +struct mdt_rec_setxattr { + __u32 sx_opcode; + __u32 sx_cap; + __u32 sx_fsuid; + __u32 sx_fsuid_h; + __u32 sx_fsgid; + __u32 sx_fsgid_h; + __u32 sx_suppgid1; + __u32 sx_suppgid1_h; + __u32 sx_suppgid2; + __u32 sx_suppgid2_h; + struct lu_fid sx_fid; + __u64 sx_padding_1; /* These three are rr_fid2 */ + __u32 sx_padding_2; + __u32 sx_padding_3; + __u64 sx_valid; + __s64 sx_time; + __u64 sx_padding_5; /* rr_ctime */ + __u64 sx_padding_6; /* rr_size */ + __u64 sx_padding_7; /* rr_blocks */ + __u32 sx_size; + __u32 sx_flags; + __u32 sx_padding_8; /* rr_flags */ + __u32 sx_padding_9; /* rr_padding_2 */ + __u32 sx_padding_10; /* rr_padding_3 */ + __u32 sx_padding_11; /* rr_padding_4 */ +}; + +/* + * mdt_rec_reint is the template for all mdt_reint_xxx structures. + * Do NOT change the size of various members, otherwise the value + * will be broken in lustre_swab_mdt_rec_reint(). + * + * If you add new members in other mdt_reint_xxx structures and need to use the + * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also. + */ +struct mdt_rec_reint { + __u32 rr_opcode; + __u32 rr_cap; + __u32 rr_fsuid; + __u32 rr_fsuid_h; + __u32 rr_fsgid; + __u32 rr_fsgid_h; + __u32 rr_suppgid1; + __u32 rr_suppgid1_h; + __u32 rr_suppgid2; + __u32 rr_suppgid2_h; + struct lu_fid rr_fid1; + struct lu_fid rr_fid2; + __s64 rr_mtime; + __s64 rr_atime; + __s64 rr_ctime; + __u64 rr_size; + __u64 rr_blocks; + __u32 rr_bias; + __u32 rr_mode; + __u32 rr_flags; + __u32 rr_flags_h; + __u32 rr_umask; + __u32 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */ +}; + +/* lmv structures */ +struct lmv_desc { + __u32 ld_tgt_count; /* how many MDS's */ + __u32 ld_active_tgt_count; /* how many active */ + __u32 ld_default_stripe_count; /* how many objects are used */ + __u32 ld_pattern; /* default hash pattern */ + __u64 ld_default_hash_size; + __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */ + __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */ + __u32 ld_qos_maxage; /* in second */ + __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */ + __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */ + struct obd_uuid ld_uuid; +}; + +/* LMV layout EA, and it will be stored both in master and slave object */ +struct lmv_mds_md_v1 { + __u32 lmv_magic; + __u32 lmv_stripe_count; + __u32 lmv_master_mdt_index; /* On master object, it is master + * MDT index, on slave object, it + * is stripe index of the slave obj + */ + __u32 lmv_hash_type; /* dir stripe policy, i.e. indicate + * which hash function to be used, + * Note: only lower 16 bits is being + * used for now. Higher 16 bits will + * be used to mark the object status, + * for example migrating or dead. + */ + __u32 lmv_layout_version; /* Used for directory restriping */ + __u32 lmv_padding1; + __u64 lmv_padding2; + __u64 lmv_padding3; + char lmv_pool_name[LOV_MAXPOOLNAME + 1];/* pool name */ + struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */ +}; + +#define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */ +#define LMV_MAGIC LMV_MAGIC_V1 + +/* #define LMV_USER_MAGIC 0x0CD30CD0 */ +#define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */ + +/* + *Right now only the lower part(0-16bits) of lmv_hash_type is being used, + * and the higher part will be the flag to indicate the status of object, + * for example the object is being migrated. And the hash function + * might be interpreted differently with different flags. + */ +#define LMV_HASH_TYPE_MASK 0x0000ffff + +#define LMV_HASH_FLAG_MIGRATION 0x80000000 +#define LMV_HASH_FLAG_DEAD 0x40000000 + +/** + * The FNV-1a hash algorithm is as follows: + * hash = FNV_offset_basis + * for each octet_of_data to be hashed + * hash = hash XOR octet_of_data + * hash = hash × FNV_prime + * return hash + * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash + * + * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source + * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL + **/ +#define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL +#define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL +static inline __u64 lustre_hash_fnv_1a_64(const void *buf, size_t size) +{ + __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS; + const unsigned char *p = buf; + size_t i; + + for (i = 0; i < size; i++) { + hash ^= p[i]; + hash *= LUSTRE_FNV_1A_64_PRIME; + } + + return hash; +} + +union lmv_mds_md { + __u32 lmv_magic; + struct lmv_mds_md_v1 lmv_md_v1; + struct lmv_user_md lmv_user_md; +}; + +static inline ssize_t lmv_mds_md_size(int stripe_count, unsigned int lmm_magic) +{ + ssize_t len = -EINVAL; + + switch (lmm_magic) { + case LMV_MAGIC_V1: { + struct lmv_mds_md_v1 *lmm1; + + len = sizeof(*lmm1); + len += stripe_count * sizeof(lmm1->lmv_stripe_fids[0]); + break; } + default: + break; + } + return len; +} + +static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm) +{ + switch (__le32_to_cpu(lmm->lmv_magic)) { + case LMV_MAGIC_V1: + return __le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count); + case LMV_USER_MAGIC: + return __le32_to_cpu(lmm->lmv_user_md.lum_stripe_count); + default: + return -EINVAL; + } +} + +enum fld_rpc_opc { + FLD_QUERY = 900, + FLD_READ = 901, + FLD_LAST_OPC, + FLD_FIRST_OPC = FLD_QUERY +}; + +enum seq_rpc_opc { + SEQ_QUERY = 700, + SEQ_LAST_OPC, + SEQ_FIRST_OPC = SEQ_QUERY +}; + +enum seq_op { + SEQ_ALLOC_SUPER = 0, + SEQ_ALLOC_META = 1 +}; + +enum fld_op { + FLD_CREATE = 0, + FLD_DELETE = 1, + FLD_LOOKUP = 2, +}; + +/* + * LOV data structures + */ + +#define LOV_MAX_UUID_BUFFER_SIZE 8192 +/* The size of the buffer the lov/mdc reserves for the + * array of UUIDs returned by the MDS. With the current + * protocol, this will limit the max number of OSTs per LOV + */ + +#define LOV_DESC_MAGIC 0xB0CCDE5C +#define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */ +#define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS) + +/* LOV settings descriptor (should only contain static info) */ +struct lov_desc { + __u32 ld_tgt_count; /* how many OBD's */ + __u32 ld_active_tgt_count; /* how many active */ + __u32 ld_default_stripe_count; /* how many objects are used */ + __u32 ld_pattern; /* default PATTERN_RAID0 */ + __u64 ld_default_stripe_size; /* in bytes */ + __u64 ld_default_stripe_offset; /* in bytes */ + __u32 ld_padding_0; /* unused */ + __u32 ld_qos_maxage; /* in second */ + __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */ + __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */ + struct obd_uuid ld_uuid; +}; + +#define ld_magic ld_active_tgt_count /* for swabbing from llogs */ + +/* + * LDLM requests: + */ +/* opcodes -- MUST be distinct from OST/MDS opcodes */ +enum ldlm_cmd { + LDLM_ENQUEUE = 101, + LDLM_CONVERT = 102, + LDLM_CANCEL = 103, + LDLM_BL_CALLBACK = 104, + LDLM_CP_CALLBACK = 105, + LDLM_GL_CALLBACK = 106, + LDLM_SET_INFO = 107, + LDLM_LAST_OPC +}; +#define LDLM_FIRST_OPC LDLM_ENQUEUE + +#define RES_NAME_SIZE 4 +struct ldlm_res_id { + __u64 name[RES_NAME_SIZE]; +}; + +#define DLDLMRES "[%#llx:%#llx:%#llx].%llx" +#define PLDLMRES(res) (res)->lr_name.name[0], (res)->lr_name.name[1], \ + (res)->lr_name.name[2], (res)->lr_name.name[3] + +/* lock types */ +enum ldlm_mode { + LCK_MINMODE = 0, + LCK_EX = 1, + LCK_PW = 2, + LCK_PR = 4, + LCK_CW = 8, + LCK_CR = 16, + LCK_NL = 32, + LCK_GROUP = 64, + LCK_COS = 128, + LCK_MAXMODE +}; + +#define LCK_MODE_NUM 8 + +enum ldlm_type { + LDLM_PLAIN = 10, + LDLM_EXTENT = 11, + LDLM_FLOCK = 12, + LDLM_IBITS = 13, + LDLM_MAX_TYPE +}; + +#define LDLM_MIN_TYPE LDLM_PLAIN + +struct ldlm_extent { + __u64 start; + __u64 end; + __u64 gid; +}; + +struct ldlm_inodebits { + __u64 bits; +}; + +struct ldlm_flock_wire { + __u64 lfw_start; + __u64 lfw_end; + __u64 lfw_owner; + __u32 lfw_padding; + __u32 lfw_pid; +}; + +/* it's important that the fields of the ldlm_extent structure match + * the first fields of the ldlm_flock structure because there is only + * one ldlm_swab routine to process the ldlm_policy_data_t union. if + * this ever changes we will need to swab the union differently based + * on the resource type. + */ + +union ldlm_wire_policy_data { + struct ldlm_extent l_extent; + struct ldlm_flock_wire l_flock; + struct ldlm_inodebits l_inodebits; +}; + +union ldlm_gl_desc { + struct ldlm_gl_lquota_desc lquota_desc; +}; + +enum ldlm_intent_flags { + IT_OPEN = 0x00000001, + IT_CREAT = 0x00000002, + IT_OPEN_CREAT = 0x00000003, + IT_READDIR = 0x00000004, + IT_GETATTR = 0x00000008, + IT_LOOKUP = 0x00000010, + IT_UNLINK = 0x00000020, + IT_TRUNC = 0x00000040, + IT_GETXATTR = 0x00000080, + IT_EXEC = 0x00000100, + IT_PIN = 0x00000200, + IT_LAYOUT = 0x00000400, + IT_QUOTA_DQACQ = 0x00000800, + IT_QUOTA_CONN = 0x00001000, + IT_SETXATTR = 0x00002000, +}; + +struct ldlm_intent { + __u64 opc; +}; + +struct ldlm_resource_desc { + enum ldlm_type lr_type; + __u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */ + struct ldlm_res_id lr_name; +}; + +struct ldlm_lock_desc { + struct ldlm_resource_desc l_resource; + enum ldlm_mode l_req_mode; + enum ldlm_mode l_granted_mode; + 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; + __u32 lock_count; + struct ldlm_lock_desc lock_desc; + struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES]; +}; + +struct ldlm_reply { + __u32 lock_flags; + __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */ + struct ldlm_lock_desc lock_desc; + struct lustre_handle lock_handle; + __u64 lock_policy_res1; + __u64 lock_policy_res2; +}; + +#define ldlm_flags_to_wire(flags) ((__u32)(flags)) +#define ldlm_flags_from_wire(flags) ((__u64)(flags)) + +/* + * Opcodes for mountconf (mgs and mgc) + */ +enum mgs_cmd { + MGS_CONNECT = 250, + MGS_DISCONNECT, + MGS_EXCEPTION, /* node died, etc. */ + MGS_TARGET_REG, /* whenever target starts up */ + MGS_TARGET_DEL, + MGS_SET_INFO, + MGS_CONFIG_READ, + MGS_LAST_OPC +}; +#define MGS_FIRST_OPC MGS_CONNECT + +#define MGS_PARAM_MAXLEN 1024 +#define KEY_SET_INFO "set_info" + +struct mgs_send_param { + char mgs_param[MGS_PARAM_MAXLEN]; +}; + +/* We pass this info to the MGS so it can write config logs */ +#define MTI_NAME_MAXLEN 64 +#define MTI_PARAM_MAXLEN 4096 +#define MTI_NIDS_MAX 32 +struct mgs_target_info { + __u32 mti_lustre_ver; + __u32 mti_stripe_index; + __u32 mti_config_ver; + __u32 mti_flags; + __u32 mti_nid_count; + __u32 mti_instance; /* Running instance of target */ + char mti_fsname[MTI_NAME_MAXLEN]; + char mti_svname[MTI_NAME_MAXLEN]; + char mti_uuid[sizeof(struct obd_uuid)]; + __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t)*/ + char mti_params[MTI_PARAM_MAXLEN]; +}; + +struct mgs_nidtbl_entry { + __u64 mne_version; /* table version of this entry */ + __u32 mne_instance; /* target instance # */ + __u32 mne_index; /* target index */ + __u32 mne_length; /* length of this entry - by bytes */ + __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */ + __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */ + __u8 mne_nid_size; /* size of each NID, by bytes */ + __u8 mne_nid_count; /* # of NIDs in buffer */ + union { + lnet_nid_t nids[0]; /* variable size buffer for NIDs. */ + } u; +}; + +struct mgs_config_body { + char mcb_name[MTI_NAME_MAXLEN]; /* logname */ + __u64 mcb_offset; /* next index of config log to request */ + __u16 mcb_type; /* type of log: CONFIG_T_[CONFIG|RECOVER] */ + __u8 mcb_reserved; + __u8 mcb_bits; /* bits unit size of config log */ + __u32 mcb_units; /* # of units for bulk transfer */ +}; + +struct mgs_config_res { + __u64 mcr_offset; /* index of last config log */ + __u64 mcr_size; /* size of the log */ +}; + +/* 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, + OBD_QC_CALLBACK, /* not used since 2.4 */ + OBD_IDX_READ, + OBD_LAST_OPC +}; +#define OBD_FIRST_OPC OBD_PING + +/** + * llog contexts indices. + * + * There is compatibility problem with indexes below, they are not + * continuous and must keep their numbers for compatibility needs. + * See LU-5218 for details. + */ +enum llog_ctxt_id { + LLOG_CONFIG_ORIG_CTXT = 0, + LLOG_CONFIG_REPL_CTXT = 1, + LLOG_MDS_OST_ORIG_CTXT = 2, + LLOG_MDS_OST_REPL_CTXT = 3, /* kept just to avoid re-assignment */ + LLOG_SIZE_ORIG_CTXT = 4, + LLOG_SIZE_REPL_CTXT = 5, + LLOG_TEST_ORIG_CTXT = 8, + LLOG_TEST_REPL_CTXT = 9, /* kept just to avoid re-assignment */ + LLOG_CHANGELOG_ORIG_CTXT = 12, /**< changelog generation on mdd */ + LLOG_CHANGELOG_REPL_CTXT = 13, /**< changelog access on clients */ + /* for multiple changelog consumers */ + LLOG_CHANGELOG_USER_ORIG_CTXT = 14, + LLOG_AGENT_ORIG_CTXT = 15, /**< agent requests generation on cdt */ + LLOG_MAX_CTXTS +}; + +/** Identifier for a single log object */ +struct llog_logid { + struct ost_id lgl_oi; + __u32 lgl_ogen; +} __packed; + +/** Records written to the CATALOGS list */ +#define CATLIST "CATALOGS" +struct llog_catid { + struct llog_logid lci_logid; + __u32 lci_padding1; + __u32 lci_padding2; + __u32 lci_padding3; +} __packed; + +/* Log data record types - there is no specific reason that these need to + * be related to the RPC opcodes, but no reason not to (may be handy later?) + */ +#define LLOG_OP_MAGIC 0x10600000 +#define LLOG_OP_MASK 0xfff00000 + +enum llog_op_type { + LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000, + OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00, + /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */ + MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) | + REINT_UNLINK, /* obsolete after 2.5.0 */ + MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) | + REINT_UNLINK, + /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */ + MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) | + REINT_SETATTR, + OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000, + /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */ + LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000, + /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */ + CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000, + CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000, + HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000, + LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539, + LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b, +}; + +#define LLOG_REC_HDR_NEEDS_SWABBING(r) \ + (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC)) + +/** Log record header - stored in little endian order. + * Each record must start with this struct, end with a llog_rec_tail, + * and be a multiple of 256 bits in size. + */ +struct llog_rec_hdr { + __u32 lrh_len; + __u32 lrh_index; + __u32 lrh_type; + __u32 lrh_id; +}; + +struct llog_rec_tail { + __u32 lrt_len; + __u32 lrt_index; +}; + +/* Where data follow just after header */ +#define REC_DATA(ptr) \ + ((void *)((char *)ptr + sizeof(struct llog_rec_hdr))) + +#define REC_DATA_LEN(rec) \ + (rec->lrh_len - sizeof(struct llog_rec_hdr) - \ + sizeof(struct llog_rec_tail)) + +struct llog_logid_rec { + struct llog_rec_hdr lid_hdr; + struct llog_logid lid_id; + __u32 lid_padding1; + __u64 lid_padding2; + __u64 lid_padding3; + struct llog_rec_tail lid_tail; +} __packed; + +struct llog_unlink_rec { + struct llog_rec_hdr lur_hdr; + __u64 lur_oid; + __u32 lur_oseq; + __u32 lur_count; + struct llog_rec_tail lur_tail; +} __packed; + +struct llog_unlink64_rec { + struct llog_rec_hdr lur_hdr; + struct lu_fid lur_fid; + __u32 lur_count; /* to destroy the lost precreated */ + __u32 lur_padding1; + __u64 lur_padding2; + __u64 lur_padding3; + struct llog_rec_tail lur_tail; +} __packed; + +struct llog_setattr64_rec { + struct llog_rec_hdr lsr_hdr; + struct ost_id lsr_oi; + __u32 lsr_uid; + __u32 lsr_uid_h; + __u32 lsr_gid; + __u32 lsr_gid_h; + __u64 lsr_valid; + struct llog_rec_tail lsr_tail; +} __packed; + +struct llog_size_change_rec { + struct llog_rec_hdr lsc_hdr; + struct ll_fid lsc_fid; + __u32 lsc_ioepoch; + __u32 lsc_padding1; + __u64 lsc_padding2; + __u64 lsc_padding3; + struct llog_rec_tail lsc_tail; +} __packed; + +/* changelog llog name, needed by client replicators */ +#define CHANGELOG_CATALOG "changelog_catalog" + +struct changelog_setinfo { + __u64 cs_recno; + __u32 cs_id; +} __packed; + +/** changelog record */ +struct llog_changelog_rec { + struct llog_rec_hdr cr_hdr; + struct changelog_rec cr; /**< Variable length field */ + struct llog_rec_tail cr_do_not_use; /**< for_sizezof_only */ +} __packed; + +struct llog_changelog_user_rec { + struct llog_rec_hdr cur_hdr; + __u32 cur_id; + __u32 cur_padding; + __u64 cur_endrec; + struct llog_rec_tail cur_tail; +} __packed; + +enum agent_req_status { + ARS_WAITING, + ARS_STARTED, + ARS_FAILED, + ARS_CANCELED, + ARS_SUCCEED, +}; + +static inline const char *agent_req_status2name(const enum agent_req_status ars) +{ + switch (ars) { + case ARS_WAITING: + return "WAITING"; + case ARS_STARTED: + return "STARTED"; + case ARS_FAILED: + return "FAILED"; + case ARS_CANCELED: + return "CANCELED"; + case ARS_SUCCEED: + return "SUCCEED"; + default: + return "UNKNOWN"; + } +} + +struct llog_agent_req_rec { + struct llog_rec_hdr arr_hdr; /**< record header */ + __u32 arr_status; /**< status of the request */ + /* must match enum + * agent_req_status + */ + __u32 arr_archive_id; /**< backend archive number */ + __u64 arr_flags; /**< req flags */ + __u64 arr_compound_id;/**< compound cookie */ + __u64 arr_req_create; /**< req. creation time */ + __u64 arr_req_change; /**< req. status change time */ + struct hsm_action_item arr_hai; /**< req. to the agent */ + struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */ +} __packed; + +/* Old llog gen for compatibility */ +struct llog_gen { + __u64 mnt_cnt; + __u64 conn_cnt; +} __packed; + +struct llog_gen_rec { + struct llog_rec_hdr lgr_hdr; + struct llog_gen lgr_gen; + __u64 padding1; + __u64 padding2; + __u64 padding3; + struct llog_rec_tail lgr_tail; +}; + +/* 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, + + /* + * 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, +}; + +/* 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) */ + +/* flags for the logs */ +struct llog_log_hdr { + struct llog_rec_hdr llh_hdr; + __s64 llh_timestamp; + __u32 llh_count; + __u32 llh_bitmap_offset; + __u32 llh_size; + __u32 llh_flags; + __u32 llh_cat_idx; + /* for a catalog the first plain slot is next to it */ + struct obd_uuid llh_tgtuuid; + __u32 llh_reserved[LLOG_HEADER_SIZE / sizeof(__u32) - 23]; + /* 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 referred 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 + * compatibility issue. + */ + __u32 llh_bitmap[LLOG_BITMAP_BYTES / sizeof(__u32)]; + struct llog_rec_tail llh_tail; +} __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 + */ +struct llog_cookie { + struct llog_logid lgc_lgl; + __u32 lgc_subsys; + __u32 lgc_index; + __u32 lgc_padding; +} __packed; + +/** llog protocol */ +enum llogd_rpc_ops { + LLOG_ORIGIN_HANDLE_CREATE = 501, + LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502, + LLOG_ORIGIN_HANDLE_READ_HEADER = 503, + LLOG_ORIGIN_HANDLE_WRITE_REC = 504, + LLOG_ORIGIN_HANDLE_CLOSE = 505, + LLOG_ORIGIN_CONNECT = 506, + LLOG_CATINFO = 507, /* deprecated */ + LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508, + LLOG_ORIGIN_HANDLE_DESTROY = 509, /* for destroy llog object*/ + LLOG_LAST_OPC, + LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE +}; + +struct llogd_body { + struct llog_logid lgd_logid; + __u32 lgd_ctxt_idx; + __u32 lgd_llh_flags; + __u32 lgd_index; + __u32 lgd_saved_index; + __u32 lgd_len; + __u64 lgd_cur_offset; +} __packed; + +struct llogd_conn_body { + struct llog_gen lgdc_gen; + struct llog_logid lgdc_logid; + __u32 lgdc_ctxt_idx; +} __packed; + +/* Note: 64-bit types are 64-bit aligned in structure */ +struct obdo { + __u64 o_valid; /* hot fields in this obdo */ + struct ost_id o_oi; + __u64 o_parent_seq; + __u64 o_size; /* o_size-o_blocks == ost_lvb */ + __s64 o_mtime; + __s64 o_atime; + __s64 o_ctime; + __u64 o_blocks; /* brw: cli sent cached bytes */ + __u64 o_grant; + + /* 32-bit fields start here: keep an even number of them via padding */ + __u32 o_blksize; /* optimal IO blocksize */ + __u32 o_mode; /* brw: cli sent cache remain */ + __u32 o_uid; + __u32 o_gid; + __u32 o_flags; + __u32 o_nlink; /* brw: checksum */ + __u32 o_parent_oid; + __u32 o_misc; /* brw: o_dropped */ + + __u64 o_ioepoch; /* epoch in ost writes */ + __u32 o_stripe_idx; /* holds stripe idx */ + __u32 o_parent_ver; + struct lustre_handle o_handle; /* brw: lock handle to prolong locks + */ + struct llog_cookie o_lcookie; /* destroy: unlink cookie from MDS, + * obsolete in 2.8, reused in OSP + */ + __u32 o_uid_h; + __u32 o_gid_h; + + __u64 o_data_version; /* getattr: sum of iversion for + * each stripe. + * brw: grant space consumed on + * the client for the write + */ + __u64 o_padding_4; + __u64 o_padding_5; + __u64 o_padding_6; +}; + +#define o_dirty o_blocks +#define o_undirty o_mode +#define o_dropped o_misc +#define o_cksum o_nlink +#define o_grant_used o_data_version + +/* 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; +}; + +/* security opcodes */ +enum sec_cmd { + SEC_CTX_INIT = 801, + SEC_CTX_INIT_CONT = 802, + SEC_CTX_FINI = 803, + SEC_LAST_OPC, + SEC_FIRST_OPC = SEC_CTX_INIT +}; + +/* + * capa related definitions + */ +#define CAPA_HMAC_MAX_LEN 64 +#define CAPA_HMAC_KEY_MAX_LEN 56 + +/* NB take care when changing the sequence of elements this struct, + * because the offset info is used in find_capa() + */ +struct lustre_capa { + struct lu_fid lc_fid; /** fid */ + __u64 lc_opc; /** operations allowed */ + __u64 lc_uid; /** file owner */ + __u64 lc_gid; /** file group */ + __u32 lc_flags; /** HMAC algorithm & flags */ + __u32 lc_keyid; /** key# used for the capability */ + __u32 lc_timeout; /** capa timeout value (sec) */ +/* FIXME: y2038 time_t overflow: */ + __u32 lc_expiry; /** expiry time (sec) */ + __u8 lc_hmac[CAPA_HMAC_MAX_LEN]; /** HMAC */ +} __packed; + +/** lustre_capa::lc_opc */ +enum { + CAPA_OPC_BODY_WRITE = 1 << 0, /**< write object data */ + CAPA_OPC_BODY_READ = 1 << 1, /**< read object data */ + CAPA_OPC_INDEX_LOOKUP = 1 << 2, /**< lookup object fid */ + CAPA_OPC_INDEX_INSERT = 1 << 3, /**< insert object fid */ + CAPA_OPC_INDEX_DELETE = 1 << 4, /**< delete object fid */ + CAPA_OPC_OSS_WRITE = 1 << 5, /**< write oss object data */ + CAPA_OPC_OSS_READ = 1 << 6, /**< read oss object data */ + CAPA_OPC_OSS_TRUNC = 1 << 7, /**< truncate oss object */ + CAPA_OPC_OSS_DESTROY = 1 << 8, /**< destroy oss object */ + CAPA_OPC_META_WRITE = 1 << 9, /**< write object meta data */ + CAPA_OPC_META_READ = 1 << 10, /**< read object meta data */ +}; + +#define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE) +#define CAPA_OPC_MDS_ONLY \ + (CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \ + CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE) +#define CAPA_OPC_OSS_ONLY \ + (CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC | \ + CAPA_OPC_OSS_DESTROY) +#define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY +#define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY) + +struct lustre_capa_key { + __u64 lk_seq; /**< mds# */ + __u32 lk_keyid; /**< key# */ + __u32 lk_padding; + __u8 lk_key[CAPA_HMAC_KEY_MAX_LEN]; /**< key */ +} __packed; + +/** The link ea holds 1 \a link_ea_entry for each hardlink */ +#define LINK_EA_MAGIC 0x11EAF1DFUL +struct link_ea_header { + __u32 leh_magic; + __u32 leh_reccount; + __u64 leh_len; /* total size */ + __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 { + /** __u16 stored big-endian, unaligned */ + unsigned char lee_reclen[2]; + unsigned char lee_parent_fid[sizeof(struct lu_fid)]; + char lee_name[0]; +} __packed; + +/** fid2path request/reply structure */ +struct getinfo_fid2path { + struct lu_fid gf_fid; + __u64 gf_recno; + __u32 gf_linkno; + __u32 gf_pathlen; + char gf_path[0]; +} __packed; + +/** path2parent request/reply structures */ +struct getparent { + struct lu_fid gp_fid; /**< parent FID */ + __u32 gp_linkno; /**< hardlink number */ + __u32 gp_name_size; /**< size of the name field */ + char gp_name[0]; /**< zero-terminated link name */ +} __packed; + +enum { + LAYOUT_INTENT_ACCESS = 0, + LAYOUT_INTENT_READ = 1, + LAYOUT_INTENT_WRITE = 2, + LAYOUT_INTENT_GLIMPSE = 3, + LAYOUT_INTENT_TRUNC = 4, + LAYOUT_INTENT_RELEASE = 5, + LAYOUT_INTENT_RESTORE = 6 +}; + +/* enqueue layout lock with intent */ +struct layout_intent { + __u32 li_opc; /* intent operation for enqueue, read, write etc */ + __u32 li_flags; + __u64 li_start; + __u64 li_end; +}; + +/** + * On the wire version of hsm_progress structure. + * + * Contains the userspace hsm_progress and some internal fields. + */ +struct hsm_progress_kernel { + /* Field taken from struct hsm_progress */ + struct lu_fid hpk_fid; + __u64 hpk_cookie; + struct hsm_extent hpk_extent; + __u16 hpk_flags; + __u16 hpk_errval; /* positive val */ + __u32 hpk_padding1; + /* Additional fields */ + __u64 hpk_data_version; + __u64 hpk_padding2; +} __packed; + +/** layout swap request structure + * fid1 and fid2 are in mdt_body + */ +struct mdc_swap_layouts { + __u64 msl_flags; +} __packed; + +struct close_data { + struct lustre_handle cd_handle; + struct lu_fid cd_fid; + __u64 cd_data_version; + __u64 cd_reserved[8]; +}; + +#endif +/** @} lustreidl */ |