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         { PTLBD_CONNECT,    "ptlbd_connect" },
  73         { PTLBD_DISCONNECT, "ptlbd_disconnect" },
  74         { OBD_PING,         "obd_ping" }
  75 };
  76
  77 const char* ll_opcode2str(__u32 opcode)
  78 {
  79         /* When one of the assertions below fail, chances are that:
  80          *     1) A new opcode was added in lustre_idl.h, but was
  81          *        is missing from the table above.
  82          * or  2) The opcode space was renumbered or rearranged,
  83          *        and the opcode_offset() function in
  84          *        ptlrpc_internals.h needs to be modified.
  85          */
  86         __u32 offset = opcode_offset(opcode);
  87         LASSERT(offset < LUSTRE_MAX_OPCODES);
  88         LASSERT(ll_rpc_opcode_table[offset].opcode == opcode);
  89         return ll_rpc_opcode_table[offset].opname;
  90 }
  91
  92 #ifndef LPROCFS
  93 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  94                                      struct ptlrpc_service *svc) { return ; }
  95 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc) { return; }
  96 #else
  97
  98 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
  99                                      struct ptlrpc_service *svc)
 100 {
 101         struct proc_dir_entry *svc_procroot;
 102         struct lprocfs_stats *svc_stats;
 103         int i, rc;
 104         unsigned int svc_counter_config = LPROCFS_CNTR_EXTERNALLOCK |
 105                 LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV;
 106
 107         LASSERT(svc->svc_procroot == NULL);
 108         LASSERT(svc->svc_stats == NULL);
 109
 110         svc_procroot = lprocfs_register(svc->srv_name, obddev->obd_proc_entry,
 111                                         NULL, NULL);
 112         if (svc_procroot == NULL)
 113                 return;
 114
 115         svc_stats = lprocfs_alloc_stats(PTLRPC_LAST_CNTR + LUSTRE_MAX_OPCODES);
 116         if (svc_stats == NULL) {
 117                 lprocfs_remove(svc_procroot);
 118                 return;
 119         }
 120
 121         lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
 122                              svc_counter_config, "req_waittime", "cycles");
 123         /* Wait for b_eq branch
 124         lprocfs_counter_init(svc_stats, PTLRPC_SVCEQDEPTH_CNTR,
 125                              svc_counter_config, "svc_eqdepth", "reqs");
 126          */
 127         /* no stddev on idletime */
 128         lprocfs_counter_init(svc_stats, PTLRPC_SVCIDLETIME_CNTR,
 129                              (LPROCFS_CNTR_EXTERNALLOCK|LPROCFS_CNTR_AVGMINMAX),
 130                              "svc_idletime", "cycles");
 131         for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
 132                 __u32 opcode = ll_rpc_opcode_table[i].opcode;
 133                 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
 134                                      svc_counter_config, ll_opcode2str(opcode),
 135                                      "cycles");
 136         }
 137
 138         rc = lprocfs_register_stats(svc_procroot, "stats", svc_stats);
 139         if (rc < 0) {
 140                 lprocfs_remove(svc_procroot);
 141                 lprocfs_free_stats(svc_stats);
 142         } else {
 143                 svc->svc_procroot = svc_procroot;
 144                 svc->svc_stats = svc_stats;
 145         }
 146 }
 147
 148 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
 149 {
 150         if (svc->svc_procroot) {
 151                 lprocfs_remove(svc->svc_procroot);
 152                 svc->svc_procroot = NULL;
 153         }
 154         if (svc->svc_stats) {
 155                 lprocfs_free_stats(svc->svc_stats);
 156                 svc->svc_stats = NULL;
 157         }
 158 }
 159 #endif /* LPROCFS */