lustre/ptlrpc/ptlrpc_internal.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (C) 2003 Cluster File Systems, Inc.
   5  *
   6  *   This file is part of Lustre, http://www.lustre.org.
   7  *
   8  *   Lustre is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Lustre is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Lustre; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  */
  22
  23 /* Intramodule declarations for ptlrpc. */
  24
  25 #ifndef PTLRPC_INTERNAL_H
  26 #define PTLRPC_INTERNAL_H
  27
  28 struct ldlm_namespace;
  29 struct obd_import;
  30 struct ldlm_res_id;
  31 struct ptlrpc_request_set;
  32
  33 /* ldlm hooks that we need, managed via inter_module_{get,put} */
  34 extern int (*ptlrpc_ldlm_namespace_cleanup)(struct ldlm_namespace *, int);
  35 extern int (*ptlrpc_ldlm_cli_cancel_unused)(struct ldlm_namespace *,
  36                                             struct ldlm_res_id *, int);
  37 extern int (*ptlrpc_ldlm_replay_locks)(struct obd_import *);
  38
  39 int ptlrpc_get_ldlm_hooks(void);
  40 void ptlrpc_daemonize(void);
  41
  42 void ptlrpc_request_handle_notconn(struct ptlrpc_request *);
  43 void lustre_assert_wire_constants(void);
  44
  45 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  46                                      struct ptlrpc_service *svc);
  47 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
  48
  49 /* recovd_thread.c */
  50 int llog_init_commit_master(void);
  51 int llog_cleanup_commit_master(int force);
  52
  53 static inline int opcode_offset(__u32 opc) {
  54         if (opc < OST_LAST_OPC) {
  55                  /* OST opcode */
  56                 return (opc - OST_FIRST_OPC);
  57         } else if (opc < MDS_LAST_OPC) {
  58                 /* MDS opcode */
  59                 return (opc - MDS_FIRST_OPC +
  60                         (OST_LAST_OPC - OST_FIRST_OPC));
  61         } else if (opc < LDLM_LAST_OPC) {
  62                 /* LDLM Opcode */
  63                 return (opc - LDLM_FIRST_OPC +
  64                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  65                         (OST_LAST_OPC - OST_FIRST_OPC));
  66         } else if (opc < PTLBD_LAST_OPC) {
  67                 /* Portals Block Device */
  68                 return (opc - PTLBD_FIRST_OPC +
  69                         (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
  70                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  71                         (OST_LAST_OPC - OST_FIRST_OPC));
  72         } else if (opc < OBD_LAST_OPC) {
  73                 /* OBD Ping */
  74                 return (opc - OBD_FIRST_OPC +
  75                         (PTLBD_LAST_OPC - PTLBD_FIRST_OPC) +
  76                         (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
  77                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  78                         (OST_LAST_OPC - OST_FIRST_OPC));
  79         } else {
  80                 /* Unknown Opcode */
  81                 return -1;
  82         }
  83 }
  84
  85 #define LUSTRE_MAX_OPCODES ((PTLBD_LAST_OPC - PTLBD_FIRST_OPC) + \
  86                             (LDLM_LAST_OPC - LDLM_FIRST_OPC)   + \
  87                             (MDS_LAST_OPC - MDS_FIRST_OPC)     + \
  88                             (OST_LAST_OPC - OST_FIRST_OPC)     + \
  89                             (OBD_LAST_OPC - OBD_FIRST_OPC))
  90
  91 enum {
  92         PTLRPC_REQWAIT_CNTR     = 0,
  93         PTLRPC_SVCIDLETIME_CNTR = 1,
  94         //PTLRPC_SVCEQDEPTH_CNTR,
  95         PTLRPC_LAST_CNTR
  96 };
  97
  98 int ptlrpc_expire_one_request(struct ptlrpc_request *req);
  99 int ptlrpc_check_set(struct ptlrpc_request_set *set);
 100
 101 void ptlrpc_pinger_sending_on_import(struct obd_import *imp);
 102 #endif /* PTLRPC_INTERNAL_H */