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_SYNC,         "ost_sync" },
  53         { OST_SET_INFO,     "ost_set_info" },
  54         { MDS_GETATTR,      "mds_getattr" },
  55         { MDS_GETATTR_NAME, "mds_getattr_name" },
  56         { MDS_CLOSE,        "mds_close" },
  57         { MDS_REINT,        "mds_reint" },
  58         { MDS_READPAGE,     "mds_readpage" },
  59         { MDS_CONNECT,      "mds_connect" },
  60         { MDS_DISCONNECT,   "mds_disconnect" },
  61         { MDS_GETSTATUS,    "mds_getstatus" },
  62         { MDS_STATFS,       "mds_statfs" },
  63         { MDS_PIN,          "mds_pin" },
  64         { MDS_UNPIN,        "mds_unpin" },
  65         { MDS_SYNC,         "mds_sync" },
  66         { MDS_DONE_WRITING, "mds_done_writing" },
  67         { LDLM_ENQUEUE,     "ldlm_enqueue" },
  68         { LDLM_CONVERT,     "ldlm_convert" },
  69         { LDLM_CANCEL,      "ldlm_cancel" },
  70         { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
  71         { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
  72         { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
  73         { PTLBD_QUERY,      "ptlbd_query" },
  74         { PTLBD_READ,       "ptlbd_read" },
  75         { PTLBD_WRITE,      "ptlbd_write" },
  76         { PTLBD_FLUSH,      "ptlbd_flush" },
  77         { PTLBD_CONNECT,    "ptlbd_connect" },
  78         { PTLBD_DISCONNECT, "ptlbd_disconnect" },
  79         { OBD_PING,         "obd_ping" },
  80         { OBD_LOG_CANCEL,   "llog_origin_handle_cancel"},
  81 };
  82
  83 const char* ll_opcode2str(__u32 opcode)
  84 {
  85         /* When one of the assertions below fail, chances are that:
  86          *     1) A new opcode was added in lustre_idl.h, but was
  87          *        is missing from the table above.
  88          * or  2) The opcode space was renumbered or rearranged,
  89          *        and the opcode_offset() function in
  90          *        ptlrpc_internals.h needs to be modified.
  91          */
  92         __u32 offset = opcode_offset(opcode);
  93         LASSERT(offset < LUSTRE_MAX_OPCODES);
  94         LASSERT(ll_rpc_opcode_table[offset].opcode == opcode);
  95         return ll_rpc_opcode_table[offset].opname;
  96 }
  97
  98 #ifndef LPROCFS
  99 void ptlrpc_lprocfs_register_service(struct obd_device *obddev,
 100                                      struct ptlrpc_service *svc) { return ; }
 101 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc) { return; }
 102 #else
 103
 104 void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
 105                              char *name, struct proc_dir_entry **procroot_ret,
 106                              struct lprocfs_stats **stats_ret)
 107 {
 108         struct proc_dir_entry *svc_procroot;
 109         struct lprocfs_stats *svc_stats;
 110         int i, rc;
 111         unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
 112                                           LPROCFS_CNTR_STDDEV;
 113
 114         LASSERT(*procroot_ret == NULL);
 115         LASSERT(*stats_ret == NULL);
 116
 117         svc_stats = lprocfs_alloc_stats(PTLRPC_LAST_CNTR + LUSTRE_MAX_OPCODES);
 118         if (svc_stats == NULL)
 119                 return;
 120
 121         if (dir) {
 122                 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
 123                 if (IS_ERR(svc_procroot)) {
 124                         lprocfs_free_stats(svc_stats);
 125                         return;
 126                 }
 127         } else {
 128                 svc_procroot = root;
 129         }
 130
 131         lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
 132                              svc_counter_config, "req_waittime", "usec");
 133         lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
 134                              svc_counter_config, "req_qdepth", "reqs");
 135         lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
 136                              svc_counter_config, "req_active", "reqs");
 137         for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
 138                 __u32 opcode = ll_rpc_opcode_table[i].opcode;
 139                 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
 140                                      svc_counter_config, ll_opcode2str(opcode),
 141                                      "usec");
 142         }
 143
 144         rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
 145         if (rc < 0) {
 146                 if (dir)
 147                         lprocfs_remove(svc_procroot);
 148                 lprocfs_free_stats(svc_stats);
 149         } else {
 150                 if (dir)
 151                         *procroot_ret = svc_procroot;
 152                 *stats_ret = svc_stats;
 153         }
 154 }
 155
 156 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
 157                                      struct ptlrpc_service *svc)
 158 {
 159         ptlrpc_lprocfs_register(entry, svc->srv_name,
 160                                 "stats", &svc->srv_procroot,
 161                                 &svc->srv_stats);
 162 }
 163
 164 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
 165 {
 166         ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
 167                                 &obddev->obd_svc_procroot,
 168                                 &obddev->obd_svc_stats);
 169 }
 170
 171 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req)
 172 {
 173         struct lprocfs_stats *svc_stats;
 174         int opc =  opcode_offset(req->rq_reqmsg->opc);
 175
 176         svc_stats = req->rq_import->imp_obd->obd_svc_stats;
 177         if (svc_stats == NULL || opc <= 0)
 178                 return;
 179         LASSERT(opc < LUSTRE_MAX_OPCODES);
 180         lprocfs_counter_add(svc_stats, opc + PTLRPC_LAST_CNTR, 0);
 181 }
 182
 183 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
 184 {
 185         if (svc->srv_procroot != NULL) {
 186                 lprocfs_remove(svc->srv_procroot);
 187                 svc->srv_procroot = NULL;
 188         }
 189         if (svc->srv_stats) {
 190                 lprocfs_free_stats(svc->srv_stats);
 191                 svc->srv_stats = NULL;
 192         }
 193 }
 194 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
 195 {
 196         if (obd->obd_svc_procroot) {
 197                 lprocfs_remove(obd->obd_svc_procroot);
 198                 obd->obd_svc_procroot = NULL;
 199         }
 200         if (obd->obd_svc_stats) {
 201                 lprocfs_free_stats(obd->obd_svc_stats);
 202                 obd->obd_svc_stats = NULL;
 203         }
 204 }
 205 #endif /* LPROCFS */