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
  32 /* ldlm hooks that we need, managed via inter_module_{get,put} */
  33 extern int (*ptlrpc_ldlm_namespace_cleanup)(struct ldlm_namespace *, int);
  34 extern int (*ptlrpc_ldlm_cli_cancel_unused)(struct ldlm_namespace *,
  35                                      struct ldlm_res_id *, int);
  36 extern int (*ptlrpc_ldlm_replay_locks)(struct obd_import *);
  37
  38 int ptlrpc_get_ldlm_hooks(void);
  39 void ptlrpc_daemonize(void);
  40
  41 int ptlrpc_request_handle_eviction(struct ptlrpc_request *);
  42 void lustre_assert_wire_constants (void);
  43
  44 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  45                                      struct ptlrpc_service *svc);
  46 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
  47
  48
  49 static inline int opcode_offset(__u32 opc) {
  50         if (opc < OST_LAST_OPC) {
  51                  /* OST opcode */
  52                 return (opc - OST_FIRST_OPC);
  53         } else if (opc < MDS_LAST_OPC) {
  54                 /* MDS opcode */
  55                 return (opc - MDS_FIRST_OPC +
  56                         (OST_LAST_OPC - OST_FIRST_OPC));
  57         } else if (opc < LDLM_LAST_OPC) {
  58                 /* LDLM Opcode */
  59                 return (opc - LDLM_FIRST_OPC +
  60                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  61                         (OST_LAST_OPC - OST_FIRST_OPC));
  62         } else if (opc < PTLBD_LAST_OPC) {
  63                 /* Portals Block Device */
  64                 return (opc - PTLBD_FIRST_OPC +
  65                         (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
  66                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  67                         (OST_LAST_OPC - OST_FIRST_OPC));
  68         } else if (opc == OBD_PING) {
  69                 /* OBD Ping */
  70                 return (opc - OBD_PING +
  71                         (PTLBD_LAST_OPC - PTLBD_FIRST_OPC) +
  72                         (LDLM_LAST_OPC - LDLM_FIRST_OPC) +
  73                         (MDS_LAST_OPC - MDS_FIRST_OPC) +
  74                         (OST_LAST_OPC - OST_FIRST_OPC));
  75         } else {
  76                 /* Unknown Opcode */
  77                 return -1;
  78         }
  79 }
  80
  81 #define LUSTRE_MAX_OPCODES (1 + (PTLBD_LAST_OPC - PTLBD_FIRST_OPC) \
  82                               + (LDLM_LAST_OPC - LDLM_FIRST_OPC)   \
  83                               + (MDS_LAST_OPC - MDS_FIRST_OPC)     \
  84                               + (OST_LAST_OPC - OST_FIRST_OPC))
  85
  86 enum {
  87         PTLRPC_REQWAIT_CNTR     = 0,
  88         PTLRPC_SVCIDLETIME_CNTR = 1,
  89         //PTLRPC_SVCEQDEPTH_CNTR,
  90         PTLRPC_LAST_CNTR
  91 };
  92
  93 #endif /* PTLRPC_INTERNAL_H */