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  *
   4  * Copyright (C) 2004 Cluster File Systems, Inc.
   5  *   Author: Eric Barton <eric@bartonsoftware.com>
   6  *
   7  *   This file is part of Lustre, http://www.lustre.org.
   8  *
   9  *   Lustre is free software; you can redistribute it and/or
  10  *   modify it under the terms of version 2 of the GNU General Public
  11  *   License as published by the Free Software Foundation.
  12  *
  13  *   Lustre is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with Lustre; if not, write to the Free Software
  20  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 #include "iiblnd.h"
  25
  26 static char *ipif_basename = "ib";
  27 CFS_MODULE_PARM(ipif_basename, "s", charp, 0444,
  28                 "IPoIB interface base name");
  29
  30 static char *service_name = "iiblnd";
  31 CFS_MODULE_PARM(service_name, "s", charp, 0444,
  32                 "IB service name");
  33
  34 static int service_number = 0x11b9a2;
  35 CFS_MODULE_PARM(service_number, "i", int, 0444,
  36                 "IB service number");
  37
  38 static int min_reconnect_interval = 1;
  39 CFS_MODULE_PARM(min_reconnect_interval, "i", int, 0644,
  40                 "minimum connection retry interval (seconds)");
  41
  42 static int max_reconnect_interval = 60;
  43 CFS_MODULE_PARM(max_reconnect_interval, "i", int, 0644,
  44                 "maximum connection retry interval (seconds)");
  45
  46 static int concurrent_peers = 1152;
  47 CFS_MODULE_PARM(concurrent_peers, "i", int, 0444,
  48                 "maximum number of peers that may connect");
  49
  50 static int cksum = 0;
  51 CFS_MODULE_PARM(cksum, "i", int, 0644,
  52                 "set non-zero to enable message (not RDMA) checksums");
  53
  54 static int timeout = 50;
  55 CFS_MODULE_PARM(timeout, "i", int, 0644,
  56                 "timeout (seconds)");
  57
  58 static int ntx = 256;
  59 CFS_MODULE_PARM(ntx, "i", int, 0444,
  60                 "# of message descriptors");
  61
  62 static int credits = 128;
  63 CFS_MODULE_PARM(credits, "i", int, 0444,
  64                 "# concurrent sends");
  65
  66 static int peer_credits = 8;
  67 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  68                 "# concurrent sends to 1 peer");
  69
  70 static int sd_retries = 8;
  71 CFS_MODULE_PARM(sd_retries, "i", int, 0444,
  72                 "# times to retry SD queries");
  73
  74 static int keepalive = 100;
  75 CFS_MODULE_PARM(keepalive, "i", int, 0644,
  76                 "Idle time in seconds before sending a keepalive");
  77
  78 static int concurrent_sends = IBNAL_RX_MSGS;
  79 CFS_MODULE_PARM(concurrent_sends, "i", int, 0644,
  80                 "Send work queue sizing");
  81
  82 kib_tunables_t kibnal_tunables = {
  83         .kib_ipif_basename          = &ipif_basename,
  84         .kib_service_name           = &service_name,
  85         .kib_service_number         = &service_number,
  86         .kib_min_reconnect_interval = &min_reconnect_interval,
  87         .kib_max_reconnect_interval = &max_reconnect_interval,
  88         .kib_concurrent_peers       = &concurrent_peers,
  89         .kib_cksum                  = &cksum,
  90         .kib_timeout                = &timeout,
  91         .kib_keepalive              = &keepalive,
  92         .kib_ntx                    = &ntx,
  93         .kib_credits                = &credits,
  94         .kib_peercredits            = &peer_credits,
  95         .kib_sd_retries             = &sd_retries,
  96         .kib_concurrent_sends       = &concurrent_sends,
  97 };
  98
  99 #if CONFIG_SYSCTL && !CFS_SYSFS_MODULE_PARM
 100
 101 /* NB max_size specified for proc_dostring entries only needs to be big enough
 102  * not to truncate the printout; it only needs to be the actual size of the
 103  * string buffer if we allow writes (and we don't) */
 104
 105 static cfs_sysctl_table_t kibnal_ctl_table[] = {
 106         {
 107                 .ctl_name = 1,
 108                 .procname = "ipif_basename",
 109                 .data     = &ipif_basename,
 110                 .maxlen   = 1024,
 111                 .mode     = 0444,
 112                 .proc_handler = &proc_dostring
 113         },
 114         {
 115                 .ctl_name = 2,
 116                 .procname = "service_name",
 117                 .data     = &service_name,
 118                 .maxlen   = 1024,
 119                 .mode     = 0444,
 120                 .proc_handler = &proc_dostring
 121         },
 122         {
 123                 .ctl_name = 3,
 124                 .procname = "service_number",
 125                 .data     = &service_number,
 126                 .maxlen   = sizeof(int),
 127                 .mode     = 0444,
 128                 .proc_handler = &proc_dointvec
 129         },
 130         {
 131                 .ctl_name = 4,
 132                 .procname = "min_reconnect_interval",
 133                 .data     = &min_reconnect_interval,
 134                 .maxlen   = sizeof(int),
 135                 .mode     = 0644,
 136                 .proc_handler = &proc_dointvec
 137         },
 138         {
 139                 .ctl_name = 5,
 140                 .procname = "max_reconnect_interval",
 141                 .data     = &max_reconnect_interval,
 142                 .maxlen   = sizeof(int),
 143                 .mode     = 0644,
 144                 .proc_handler = &proc_dointvec
 145         },
 146         {
 147                 .ctl_name = 6,
 148                 .procname = "concurrent_peers",
 149                 .data     = &concurrent_peers,
 150                 .maxlen   = sizeof(int),
 151                 .mode     = 0444,
 152                 .proc_handler = &proc_dointvec
 153         },
 154         {
 155                 .ctl_name = 7,
 156                 .procname = "cksum",
 157                 .data     = &cksum,
 158                 .maxlen   = sizeof(int),
 159                 .mode     = 0644,
 160                 .proc_handler = &proc_dointvec
 161         },
 162         {
 163                 .ctl_name = 8,
 164                 .procname = "timeout",
 165                 .data     = &timeout,
 166                 .maxlen   = sizeof(int),
 167                 .mode     = 0644,
 168                 .proc_handler = &proc_dointvec
 169         },
 170         {
 171                 .ctl_name = 9,
 172                 .procname = "ntx",
 173                 .data     = &ntx,
 174                 .maxlen   = sizeof(int),
 175                 .mode     = 0444,
 176                 .proc_handler = &proc_dointvec
 177         },
 178         {
 179                 .ctl_name = 10,
 180                 .procname = "credits",
 181                 .data     = &credits,
 182                 .maxlen   = sizeof(int),
 183                 .mode     = 0444,
 184                 .proc_handler = &proc_dointvec
 185         },
 186         {
 187                 .ctl_name = 11,
 188                 .procname = "peer_credits",
 189                 .data     = &peer_credits,
 190                 .maxlen   = sizeof(int),
 191                 .mode     = 0444,
 192                 .proc_handler = &proc_dointvec
 193         },
 194         {
 195                 .ctl_name = 12,
 196                 .procname = "sd_retries",
 197                 .data     = &sd_retries,
 198                 .maxlen   = sizeof(int),
 199                 .mode     = 0444,
 200                 .proc_handler = &proc_dointvec
 201         },
 202         {
 203                 .ctl_name = 13,
 204                 .procname = "keepalive",
 205                 .data     = &keepalive,
 206                 .maxlen   = sizeof(int),
 207                 .mode     = 0644,
 208                 .proc_handler = &proc_dointvec
 209         },
 210         {
 211                 .ctl_name = 14,
 212                 .procname = "concurrent_sends",
 213                 .data     = &concurrent_sends,
 214                 .maxlen   = sizeof(int),
 215                 .mode     = 0644,
 216                 .proc_handler = &proc_dointvec
 217         },
 218         {0}
 219 };
 220
 221 static cfs_sysctl_table_t kibnal_top_ctl_table[] = {
 222         {
 223                 .ctl_name = 203,
 224                 .procname = "openibnal",
 225                 .data     = NULL,
 226                 .maxlen   = 0,
 227                 .mode     = 0555,
 228                 .child    = kibnal_ctl_table
 229         },
 230         {0}
 231 };
 232
 233 int
 234 kibnal_tunables_init ()
 235 {
 236         kibnal_tunables.kib_sysctl =
 237                 cfs_register_sysctl_table(kibnal_top_ctl_table, 0);
 238
 239         if (kibnal_tunables.kib_sysctl == NULL)
 240                 CWARN("Can't setup /proc tunables\n");
 241
 242         if (*kibnal_tunables.kib_concurrent_sends > IBNAL_RX_MSGS)
 243                 *kibnal_tunables.kib_concurrent_sends = IBNAL_RX_MSGS;
 244         if (*kibnal_tunables.kib_concurrent_sends < IBNAL_MSG_QUEUE_SIZE)
 245                 *kibnal_tunables.kib_concurrent_sends = IBNAL_MSG_QUEUE_SIZE;
 246
 247         return 0;
 248 }
 249
 250 void
 251 kibnal_tunables_fini ()
 252 {
 253         if (kibnal_tunables.kib_sysctl != NULL)
 254                 cfs_unregister_sysctl_table(kibnal_tunables.kib_sysctl);
 255 }
 256
 257 #else
 258
 259 int
 260 kibnal_tunables_init ()
 261 {
 262         return 0;
 263 }
 264
 265 void
 266 kibnal_tunables_fini ()
 267 {
 268 }
 269
 270 #endif