lnet/klnds/iiblnd/iiblnd_modparams.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
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   8  * This program is free software; you can redistribute it and/or modify
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  10  * as published by the Free Software Foundation.
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  12  * This program is distributed in the hope that it will be useful, but
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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/iiblnd/iiblnd_modparams.c
  37  *
  38  * Author: Eric Barton <eric@bartonsoftware.com>
  39  */
  40
  41 #include "iiblnd.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 char *service_name = "iiblnd";
  48 CFS_MODULE_PARM(service_name, "s", charp, 0444,
  49                 "IB service name");
  50
  51 static int service_number = 0x11b9a2;
  52 CFS_MODULE_PARM(service_number, "i", int, 0444,
  53                 "IB service number");
  54
  55 static int min_reconnect_interval = 1;
  56 CFS_MODULE_PARM(min_reconnect_interval, "i", int, 0644,
  57                 "minimum connection retry interval (seconds)");
  58
  59 static int max_reconnect_interval = 60;
  60 CFS_MODULE_PARM(max_reconnect_interval, "i", int, 0644,
  61                 "maximum connection retry interval (seconds)");
  62
  63 static int concurrent_peers = 1152;
  64 CFS_MODULE_PARM(concurrent_peers, "i", int, 0444,
  65                 "maximum number of peers that may connect");
  66
  67 static int cksum = 0;
  68 CFS_MODULE_PARM(cksum, "i", int, 0644,
  69                 "set non-zero to enable message (not RDMA) checksums");
  70
  71 static int timeout = 50;
  72 CFS_MODULE_PARM(timeout, "i", int, 0644,
  73                 "timeout (seconds)");
  74
  75 static int ntx = 256;
  76 CFS_MODULE_PARM(ntx, "i", int, 0444,
  77                 "# of message descriptors");
  78
  79 static int credits = 128;
  80 CFS_MODULE_PARM(credits, "i", int, 0444,
  81                 "# concurrent sends");
  82
  83 static int peer_credits = 8;
  84 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  85                 "# concurrent sends to 1 peer");
  86
  87 static int sd_retries = 8;
  88 CFS_MODULE_PARM(sd_retries, "i", int, 0444,
  89                 "# times to retry SD queries");
  90
  91 static int keepalive = 100;
  92 CFS_MODULE_PARM(keepalive, "i", int, 0644,
  93                 "Idle time in seconds before sending a keepalive");
  94
  95 static int concurrent_sends = IBNAL_RX_MSGS;
  96 CFS_MODULE_PARM(concurrent_sends, "i", int, 0644,
  97                 "Send work queue sizing");
  98
  99 kib_tunables_t kibnal_tunables = {
 100         .kib_ipif_basename          = &ipif_basename,
 101         .kib_service_name           = &service_name,
 102         .kib_service_number         = &service_number,
 103         .kib_min_reconnect_interval = &min_reconnect_interval,
 104         .kib_max_reconnect_interval = &max_reconnect_interval,
 105         .kib_concurrent_peers       = &concurrent_peers,
 106         .kib_cksum                  = &cksum,
 107         .kib_timeout                = &timeout,
 108         .kib_keepalive              = &keepalive,
 109         .kib_ntx                    = &ntx,
 110         .kib_credits                = &credits,
 111         .kib_peercredits            = &peer_credits,
 112         .kib_sd_retries             = &sd_retries,
 113         .kib_concurrent_sends       = &concurrent_sends,
 114 };
 115
 116 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
 117
 118 /* NB max_size specified for proc_dostring entries only needs to be big enough
 119  * not to truncate the printout; it only needs to be the actual size of the
 120  * string buffer if we allow writes (and we don't) */
 121
 122 static cfs_sysctl_table_t kibnal_ctl_table[] = {
 123         {
 124                 .ctl_name = 1,
 125                 .procname = "ipif_basename",
 126                 .data     = &ipif_basename,
 127                 .maxlen   = 1024,
 128                 .mode     = 0444,
 129                 .proc_handler = &proc_dostring
 130         },
 131         {
 132                 .ctl_name = 2,
 133                 .procname = "service_name",
 134                 .data     = &service_name,
 135                 .maxlen   = 1024,
 136                 .mode     = 0444,
 137                 .proc_handler = &proc_dostring
 138         },
 139         {
 140                 .ctl_name = 3,
 141                 .procname = "service_number",
 142                 .data     = &service_number,
 143                 .maxlen   = sizeof(int),
 144                 .mode     = 0444,
 145                 .proc_handler = &proc_dointvec
 146         },
 147         {
 148                 .ctl_name = 4,
 149                 .procname = "min_reconnect_interval",
 150                 .data     = &min_reconnect_interval,
 151                 .maxlen   = sizeof(int),
 152                 .mode     = 0644,
 153                 .proc_handler = &proc_dointvec
 154         },
 155         {
 156                 .ctl_name = 5,
 157                 .procname = "max_reconnect_interval",
 158                 .data     = &max_reconnect_interval,
 159                 .maxlen   = sizeof(int),
 160                 .mode     = 0644,
 161                 .proc_handler = &proc_dointvec
 162         },
 163         {
 164                 .ctl_name = 6,
 165                 .procname = "concurrent_peers",
 166                 .data     = &concurrent_peers,
 167                 .maxlen   = sizeof(int),
 168                 .mode     = 0444,
 169                 .proc_handler = &proc_dointvec
 170         },
 171         {
 172                 .ctl_name = 7,
 173                 .procname = "cksum",
 174                 .data     = &cksum,
 175                 .maxlen   = sizeof(int),
 176                 .mode     = 0644,
 177                 .proc_handler = &proc_dointvec
 178         },
 179         {
 180                 .ctl_name = 8,
 181                 .procname = "timeout",
 182                 .data     = &timeout,
 183                 .maxlen   = sizeof(int),
 184                 .mode     = 0644,
 185                 .proc_handler = &proc_dointvec
 186         },
 187         {
 188                 .ctl_name = 9,
 189                 .procname = "ntx",
 190                 .data     = &ntx,
 191                 .maxlen   = sizeof(int),
 192                 .mode     = 0444,
 193                 .proc_handler = &proc_dointvec
 194         },
 195         {
 196                 .ctl_name = 10,
 197                 .procname = "credits",
 198                 .data     = &credits,
 199                 .maxlen   = sizeof(int),
 200                 .mode     = 0444,
 201                 .proc_handler = &proc_dointvec
 202         },
 203         {
 204                 .ctl_name = 11,
 205                 .procname = "peer_credits",
 206                 .data     = &peer_credits,
 207                 .maxlen   = sizeof(int),
 208                 .mode     = 0444,
 209                 .proc_handler = &proc_dointvec
 210         },
 211         {
 212                 .ctl_name = 12,
 213                 .procname = "sd_retries",
 214                 .data     = &sd_retries,
 215                 .maxlen   = sizeof(int),
 216                 .mode     = 0444,
 217                 .proc_handler = &proc_dointvec
 218         },
 219         {
 220                 .ctl_name = 13,
 221                 .procname = "keepalive",
 222                 .data     = &keepalive,
 223                 .maxlen   = sizeof(int),
 224                 .mode     = 0644,
 225                 .proc_handler = &proc_dointvec
 226         },
 227         {
 228                 .ctl_name = 14,
 229                 .procname = "concurrent_sends",
 230                 .data     = &concurrent_sends,
 231                 .maxlen   = sizeof(int),
 232                 .mode     = 0444,
 233                 .proc_handler = &proc_dointvec
 234         },
 235         {0}
 236 };
 237
 238 static cfs_sysctl_table_t kibnal_top_ctl_table[] = {
 239         {
 240                 .ctl_name = 203,
 241                 .procname = "iibnal",
 242                 .data     = NULL,
 243                 .maxlen   = 0,
 244                 .mode     = 0555,
 245                 .child    = kibnal_ctl_table
 246         },
 247         {0}
 248 };
 249
 250 int
 251 kibnal_tunables_init ()
 252 {
 253         kibnal_tunables.kib_sysctl =
 254                 cfs_register_sysctl_table(kibnal_top_ctl_table, 0);
 255
 256         if (kibnal_tunables.kib_sysctl == NULL)
 257                 CWARN("Can't setup /proc tunables\n");
 258
 259         if (*kibnal_tunables.kib_concurrent_sends > IBNAL_RX_MSGS)
 260                 *kibnal_tunables.kib_concurrent_sends = IBNAL_RX_MSGS;
 261         if (*kibnal_tunables.kib_concurrent_sends < IBNAL_MSG_QUEUE_SIZE)
 262                 *kibnal_tunables.kib_concurrent_sends = IBNAL_MSG_QUEUE_SIZE;
 263
 264         return 0;
 265 }
 266
 267 void
 268 kibnal_tunables_fini ()
 269 {
 270         if (kibnal_tunables.kib_sysctl != NULL)
 271                 cfs_unregister_sysctl_table(kibnal_tunables.kib_sysctl);
 272 }
 273
 274 #else
 275
 276 int
 277 kibnal_tunables_init ()
 278 {
 279         return 0;
 280 }
 281
 282 void
 283 kibnal_tunables_fini ()
 284 {
 285 }
 286
 287 #endif