lustre/ptlrpc/lproc_ptlrpc.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (C) 2002 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 #define DEBUG_SUBSYSTEM S_CLASS
  23
  24 #include <linux/obd_support.h>
  25 #include <linux/obd.h>
  26 #include <linux/lprocfs_status.h>
  27 #include <linux/lustre_idl.h>
  28 #include <linux/lustre_net.h>
  29 #include "ptlrpc_internal.h"
  30
  31
  32 struct ll_rpc_opcode {
  33      __u32       opcode;
  34      const char *opname;
  35 } ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
  36         { OST_REPLY,        "ost_reply" },
  37         { OST_GETATTR,      "ost_getattr" },
  38         { OST_SETATTR,      "ost_setattr" },
  39         { OST_READ,         "ost_read" },
  40         { OST_WRITE,        "ost_write" },
  41         { OST_CREATE ,      "ost_create" },
  42         { OST_DESTROY,      "ost_destroy" },
  43         { OST_GET_INFO,     "ost_get_info" },
  44         { OST_CONNECT,      "ost_connect" },
  45         { OST_DISCONNECT,   "ost_disconnect" },
  46         { OST_PUNCH,        "ost_punch" },
  47         { OST_OPEN,         "ost_open" },
  48         { OST_CLOSE,        "ost_close" },
  49         { OST_STATFS,       "ost_statfs" },
  50         { OST_SAN_READ,     "ost_san_read" },
  51         { OST_SAN_WRITE,    "ost_san_write" },
  52         { OST_SYNCFS,       "ost_syncfs" },
  53         { MDS_GETATTR,      "mds_getattr" },
  54         { MDS_GETATTR_NAME, "mds_getattr_name" },
  55         { MDS_CLOSE,        "mds_close" },
  56         { MDS_REINT,        "mds_reint" },
  57         { MDS_READPAGE,     "mds_readpage" },
  58         { MDS_CONNECT,      "mds_connect" },
  59         { MDS_DISCONNECT,   "mds_disconnect" },
  60         { MDS_GETSTATUS,    "mds_getstatus" },
  61         { MDS_STATFS,       "mds_statfs" },
  62         { MDS_GETLOVINFO,   "mds_getlovinfo" },
  63         { LDLM_ENQUEUE,     "ldlm_enqueue" },
  64         { LDLM_CONVERT,     "ldlm_convert" },
  65         { LDLM_CANCEL,      "ldlm_cancel" },
  66         { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
  67         { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
  68         { PTLBD_QUERY,      "ptlbd_query" },
  69         { PTLBD_READ,       "ptlbd_read" },
  70         { PTLBD_WRITE,      "ptlbd_write" },
  71         { PTLBD_FLUSH,      "ptlbd_flush" },
  72         { OBD_PING,         "obd_ping" }
  73 };
  74
  75 const char* ll_opcode2str(__u32 opcode)
  76 {
  77         /* When one of the assertions below fail, chances are that:
  78          *     1) A new opcode was added in lustre_idl.h, but was
  79          *        is missing from the table above.
  80          * or  2) The opcode space was renumbered or rearranged,
  81          *        and the opcode_offset() function in
  82          *        ptlrpc_internals.h needs to be modified.
  83          */
  84         __u32 offset = opcode_offset(opcode);
  85         LASSERT(offset < LUSTRE_MAX_OPCODES);
  86         LASSERT(ll_rpc_opcode_table[offset].opcode == opcode);
  87         return ll_rpc_opcode_table[offset].opname;
  88 }
  89
  90 #ifndef LPROCFS
  91 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  92                                      struct ptlrpc_service *svc) { return ; }
  93 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc) { return; }
  94 #else
  95
  96 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  97                                      struct ptlrpc_service *svc)
  98 {
  99         struct proc_dir_entry   *svc_procroot;
 100         struct lprocfs_counters *svc_cntrs;
 101         int i, rc;
 102         unsigned int svc_counter_config = LPROCFS_CNTR_EXTERNALLOCK |
 103                 LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV;
 104
 105         LASSERT(svc->svc_procroot == NULL);
 106         LASSERT(svc->svc_counters == NULL);
 107
 108         svc_procroot = lprocfs_register(svc->srv_name, obddev->obd_proc_entry,
 109                                         NULL, NULL);
 110         if (svc_procroot == NULL)
 111                 return;
 112
 113         svc_cntrs =
 114                 lprocfs_alloc_counters(PTLRPC_LAST_CNTR+LUSTRE_MAX_OPCODES);
 115         if (svc_cntrs == NULL) {
 116                 lprocfs_remove(svc_procroot);
 117                 return;
 118         }
 119
 120         LPROCFS_COUNTER_INIT(&svc_cntrs->cntr[PTLRPC_REQWAIT_CNTR],
 121                              svc_counter_config, &svc->srv_lock,
 122                              "req_waittime", "cycles");
 123         LPROCFS_COUNTER_INIT(&svc_cntrs->cntr[PTLRPC_SVCEQDEPTH_CNTR],
 124                              svc_counter_config, &svc->srv_lock,
 125                              "svc_eqdepth", "reqs");
 126         /* no stddev on idletime */
 127         LPROCFS_COUNTER_INIT(&svc_cntrs->cntr[PTLRPC_SVCIDLETIME_CNTR],
 128                              (LPROCFS_CNTR_EXTERNALLOCK | LPROCFS_CNTR_AVGMINMAX),
 129                              &svc->srv_lock, "svc_idletime", "cycles");
 130         for (i=0; i < LUSTRE_MAX_OPCODES; i++) {
 131                 __u32 opcode = ll_rpc_opcode_table[i].opcode;
 132                 LPROCFS_COUNTER_INIT(&svc_cntrs->cntr[PTLRPC_LAST_CNTR+i],
 133                                      svc_counter_config, &svc->srv_lock,
 134                                      ll_opcode2str(opcode), "cycles");
 135         }
 136         rc = lprocfs_register_counters(svc_procroot, "service_stats",
 137                                        svc_cntrs);
 138         if (rc < 0) {
 139                 lprocfs_remove(svc_procroot);
 140                 lprocfs_free_counters(svc_cntrs);
 141         } else {
 142                 svc->svc_procroot = svc_procroot;
 143                 svc->svc_counters = svc_cntrs;
 144         }
 145 }
 146
 147 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
 148 {
 149         if (svc->svc_procroot) {
 150                 lprocfs_remove(svc->svc_procroot);
 151                 svc->svc_procroot = NULL;
 152         }
 153         if (svc->svc_counters) {
 154                 lprocfs_free_counters(svc->svc_counters);
 155                 svc->svc_counters = NULL;
 156         }
 157 }
 158 #endif /* LPROCFS */