lnet/klnds/openiblnd/openiblnd_modparams.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
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  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
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  28 /*
  29  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  30  * Use is subject to license terms.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  *
  36  * lnet/klnds/openiblnd/openiblnd_modparams.c
  37  *
  38  * Author: Eric Barton <eric@bartonsoftware.com>
  39  */
  40
  41 #include "openiblnd.h"
  42
  43 static char *ipif_basename = "ib";
  44 CFS_MODULE_PARM(ipif_basename, "s", charp, 0444,
  45                 "IPoIB interface base name");
  46
  47 static int n_connd = 4;
  48 CFS_MODULE_PARM(n_connd, "i", int, 0444,
  49                 "# of connection daemons");
  50
  51 static int min_reconnect_interval = 1;
  52 CFS_MODULE_PARM(min_reconnect_interval, "i", int, 0644,
  53                 "minimum connection retry interval (seconds)");
  54
  55 static int max_reconnect_interval = 60;
  56 CFS_MODULE_PARM(max_reconnect_interval, "i", int, 0644,
  57                 "maximum connection retry interval (seconds)");
  58
  59 static int concurrent_peers = 1152;
  60 CFS_MODULE_PARM(concurrent_peers, "i", int, 0444,
  61                 "maximum number of peers that may connect");
  62
  63 static int cksum = 0;
  64 CFS_MODULE_PARM(cksum, "i", int, 0644,
  65                 "set non-zero to enable message (not RDMA) checksums");
  66
  67 static int timeout = 50;
  68 CFS_MODULE_PARM(timeout, "i", int, 0644,
  69                 "timeout (seconds)");
  70
  71 static int ntx = 384;
  72 CFS_MODULE_PARM(ntx, "i", int, 0444,
  73                 "# of message descriptors");
  74
  75 static int credits = 256;
  76 CFS_MODULE_PARM(credits, "i", int, 0444,
  77                 "# concurrent sends");
  78
  79 static int peer_credits = 16;
  80 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  81                 "# concurrent sends to 1 peer");
  82
  83 static int keepalive = 100;
  84 CFS_MODULE_PARM(keepalive, "i", int, 0644,
  85                 "Idle time in seconds before sending a keepalive");
  86
  87 kib_tunables_t kibnal_tunables = {
  88         .kib_ipif_basename          = &ipif_basename,
  89         .kib_n_connd                = &n_connd,
  90         .kib_min_reconnect_interval = &min_reconnect_interval,
  91         .kib_max_reconnect_interval = &max_reconnect_interval,
  92         .kib_concurrent_peers       = &concurrent_peers,
  93         .kib_cksum                  = &cksum,
  94         .kib_timeout                = &timeout,
  95         .kib_ntx                    = &ntx,
  96         .kib_credits                = &credits,
  97         .kib_peercredits            = &peer_credits,
  98         .kib_keepalive              = &keepalive,
  99 };
 100
 101 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
 102
 103 static cfs_sysctl_table_t kibnal_ctl_table[] = {
 104         {
 105                 .ctl_name = 1,
 106                 .procname = "ipif_basename",
 107                 .data     = &ipif_basename,
 108                 .maxlen   = 1024,
 109                 .mode     = 0444,
 110                 .proc_handler = &proc_dostring
 111         },
 112         {
 113                 .ctl_name = 2,
 114                 .procname = "n_connd",
 115                 .data     = &n_connd,
 116                 .maxlen   = sizeof(int),
 117                 .mode     = 0444,
 118                 .proc_handler = &proc_dointvec
 119         },
 120         {
 121                 .ctl_name = 3,
 122                 .procname = "min_reconnect_interval",
 123                 .data     = &min_reconnect_interval,
 124                 .maxlen   = sizeof(int),
 125                 .mode     = 0644,
 126                 .proc_handler = &proc_dointvec
 127         },
 128         {
 129                 .ctl_name = 4,
 130                 .procname = "max_reconnect_interval",
 131                 .data     = &max_reconnect_interval,
 132                 .maxlen   = sizeof(int),
 133                 .mode     = 0644,
 134                 .proc_handler = &proc_dointvec
 135         },
 136         {
 137                 .ctl_name = 5,
 138                 .procname = "concurrent_peers",
 139                 .data     = &concurrent_peers,
 140                 .maxlen   = sizeof(int),
 141                 .mode     = 0444,
 142                 .proc_handler = &proc_dointvec
 143         },
 144         {
 145                 .ctl_name = 6,
 146                 .procname = "cksum",
 147                 .data     = &cksum,
 148                 .maxlen   = sizeof(int),
 149                 .mode     = 0644,
 150                 .proc_handler = &proc_dointvec
 151         },
 152         {
 153                 .ctl_name = 7,
 154                 .procname = "timeout",
 155                 .data     = &timeout,
 156                 .maxlen   = sizeof(int),
 157                 .mode     = 0644,
 158                 .proc_handler = &proc_dointvec
 159         },
 160         {
 161                 .ctl_name = 8,
 162                 .procname = "ntx",
 163                 .data     = &ntx,
 164                 .maxlen   = sizeof(int),
 165                 .mode     = 0444,
 166                 .proc_handler = &proc_dointvec
 167         },
 168         {
 169                 .ctl_name = 9,
 170                 .procname = "credits",
 171                 .data     = &credits,
 172                 .maxlen   = sizeof(int),
 173                 .mode     = 0444,
 174                 .proc_handler = &proc_dointvec
 175         },
 176         {
 177                 .ctl_name = 10,
 178                 .procname = "peer_credits",
 179                 .data     = &peer_credits,
 180                 .maxlen   = sizeof(int),
 181                 .mode     = 0444,
 182                 .proc_handler = &proc_dointvec
 183         },
 184         {
 185                 .ctl_name = 11,
 186                 .procname = "keepalive",
 187                 .data     = &keepalive,
 188                 .maxlen   = sizeof(int),
 189                 .mode     = 0644,
 190                 .proc_handler = &proc_dointvec
 191         },
 192         {0}
 193 };
 194
 195 static cfs_sysctl_table_t kibnal_top_ctl_table[] = {
 196         {
 197                 .ctl_name = 203,
 198                 .procname = "openibnal",
 199                 .data     = NULL,
 200                 .maxlen   = 0,
 201                 .mode     = 0555,
 202                 .child    = kibnal_ctl_table
 203         },
 204         {0}
 205 };
 206
 207 int
 208 kibnal_tunables_init ()
 209 {
 210         kibnal_tunables.kib_sysctl =
 211                 cfs_register_sysctl_table(kibnal_top_ctl_table, 0);
 212
 213         if (kibnal_tunables.kib_sysctl == NULL)
 214                 CWARN("Can't setup /proc tunables\n");
 215
 216         return 0;
 217 }
 218
 219 void
 220 kibnal_tunables_fini ()
 221 {
 222         if (kibnal_tunables.kib_sysctl != NULL)
 223                 cfs_unregister_sysctl_table(kibnal_tunables.kib_sysctl);
 224 }
 225
 226 #else
 227
 228 int
 229 kibnal_tunables_init ()
 230 {
 231         return 0;
 232 }
 233
 234 void
 235 kibnal_tunables_fini ()
 236 {
 237 }
 238
 239 #endif