diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/lustre_export.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/lustre_export.h | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h deleted file mode 100644 index 40cd168ed2ea..000000000000 --- a/drivers/staging/lustre/lustre/include/lustre_export.h +++ /dev/null @@ -1,257 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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) 2002, 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. - */ -/** \defgroup obd_export PortalRPC export definitions - * - * @{ - */ - -#ifndef __EXPORT_H -#define __EXPORT_H - -/** \defgroup export export - * - * @{ - */ - -#include <lprocfs_status.h> -#include <uapi/linux/lustre/lustre_idl.h> -#include <lustre_dlm.h> - -enum obd_option { - OBD_OPT_FORCE = 0x0001, - OBD_OPT_FAILOVER = 0x0002, - OBD_OPT_ABORT_RECOV = 0x0004, -}; - -/** - * Export structure. Represents target-side of connection in portals. - * Also used in Lustre to connect between layers on the same node when - * there is no network-connection in-between. - * For every connected client there is an export structure on the server - * attached to the same obd device. - */ -struct obd_export { - /** - * Export handle, it's id is provided to client on connect - * Subsequent client RPCs contain this handle id to identify - * what export they are talking to. - */ - struct portals_handle exp_handle; - atomic_t exp_refcount; - /** - * Set of counters below is to track where export references are - * kept. The exp_rpc_count is used for reconnect handling also, - * the cb_count and locks_count are for debug purposes only for now. - * The sum of them should be less than exp_refcount by 3 - */ - atomic_t exp_rpc_count; /* RPC references */ - atomic_t exp_cb_count; /* Commit callback references */ - /** Number of queued replay requests to be processes */ - atomic_t exp_replay_count; - atomic_t exp_locks_count; /** Lock references */ -#if LUSTRE_TRACKS_LOCK_EXP_REFS - struct list_head exp_locks_list; - spinlock_t exp_locks_list_guard; -#endif - /** UUID of client connected to this export */ - struct obd_uuid exp_client_uuid; - /** To link all exports on an obd device */ - struct list_head exp_obd_chain; - /** work_struct for destruction of export */ - struct work_struct exp_zombie_work; - struct hlist_node exp_uuid_hash; /** uuid-export hash*/ - /** Obd device of this export */ - struct obd_device *exp_obd; - /** - * "reverse" import to send requests (e.g. from ldlm) back to client - * exp_lock protect its change - */ - struct obd_import *exp_imp_reverse; - struct lprocfs_stats *exp_md_stats; - /** Active connection */ - struct ptlrpc_connection *exp_connection; - /** Connection count value from last successful reconnect rpc */ - __u32 exp_conn_cnt; - /** Hash list of all ldlm locks granted on this export */ - struct cfs_hash *exp_lock_hash; - /** - * Hash list for Posix lock deadlock detection, added with - * ldlm_lock::l_exp_flock_hash. - */ - struct cfs_hash *exp_flock_hash; - struct list_head exp_outstanding_replies; - struct list_head exp_uncommitted_replies; - spinlock_t exp_uncommitted_replies_lock; - /** Last committed transno for this export */ - __u64 exp_last_committed; - /** On replay all requests waiting for replay are linked here */ - struct list_head exp_req_replay_queue; - /** - * protects exp_flags, exp_outstanding_replies and the change - * of exp_imp_reverse - */ - spinlock_t exp_lock; - /** Compatibility flags for this export are embedded into - * exp_connect_data - */ - struct obd_connect_data exp_connect_data; - enum obd_option exp_flags; - unsigned long exp_failed:1, - exp_disconnected:1, - exp_connecting:1, - exp_flvr_changed:1, - exp_flvr_adapt:1; - /* also protected by exp_lock */ - enum lustre_sec_part exp_sp_peer; - struct sptlrpc_flavor exp_flvr; /* current */ - struct sptlrpc_flavor exp_flvr_old[2]; /* about-to-expire */ - time64_t exp_flvr_expire[2]; /* seconds */ - - /** protects exp_hp_rpcs */ - spinlock_t exp_rpc_lock; - struct list_head exp_hp_rpcs; /* (potential) HP RPCs */ - - /** blocking dlm lock list, protected by exp_bl_list_lock */ - struct list_head exp_bl_list; - spinlock_t exp_bl_list_lock; -}; - -static inline __u64 *exp_connect_flags_ptr(struct obd_export *exp) -{ - return &exp->exp_connect_data.ocd_connect_flags; -} - -static inline __u64 exp_connect_flags(struct obd_export *exp) -{ - return *exp_connect_flags_ptr(exp); -} - -static inline int exp_max_brw_size(struct obd_export *exp) -{ - if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE) - return exp->exp_connect_data.ocd_brw_size; - - return ONE_MB_BRW_SIZE; -} - -static inline int exp_connect_multibulk(struct obd_export *exp) -{ - return exp_max_brw_size(exp) > ONE_MB_BRW_SIZE; -} - -static inline int exp_connect_cancelset(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET); -} - -static inline int exp_connect_lru_resize(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE); -} - -static inline int exp_connect_vbr(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR); -} - -static inline int exp_connect_som(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_SOM); -} - -static inline int exp_connect_umask(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_UMASK); -} - -static inline int imp_connect_lru_resize(struct obd_import *imp) -{ - struct obd_connect_data *ocd; - - ocd = &imp->imp_connect_data; - return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE); -} - -static inline int exp_connect_layout(struct obd_export *exp) -{ - return !!(exp_connect_flags(exp) & OBD_CONNECT_LAYOUTLOCK); -} - -static inline bool exp_connect_lvb_type(struct obd_export *exp) -{ - if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE) - return true; - else - return false; -} - -static inline bool imp_connect_lvb_type(struct obd_import *imp) -{ - struct obd_connect_data *ocd; - - ocd = &imp->imp_connect_data; - if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE) - return true; - else - return false; -} - -static inline __u64 exp_connect_ibits(struct obd_export *exp) -{ - struct obd_connect_data *ocd; - - ocd = &exp->exp_connect_data; - return ocd->ocd_ibits_known; -} - -static inline bool imp_connect_disp_stripe(struct obd_import *imp) -{ - struct obd_connect_data *ocd; - - ocd = &imp->imp_connect_data; - return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE; -} - -struct obd_export *class_conn2export(struct lustre_handle *conn); - -#define KKUC_CT_DATA_MAGIC 0x092013cea -struct kkuc_ct_data { - __u32 kcd_magic; - struct obd_uuid kcd_uuid; - __u32 kcd_archive; -}; - -/** @} export */ - -#endif /* __EXPORT_H */ -/** @} obd_export */ |