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 ctl_table kibnal_ctl_table[] = {
 106         {1, "ipif_basename", &ipif_basename,
 107          1024, 0444, NULL, &proc_dostring},
 108         {2, "service_name", &service_name,
 109          1024, 0444, NULL, &proc_dostring},
 110         {3, "service_number", &service_number,
 111          sizeof(int), 0444, NULL, &proc_dointvec},
 112         {4, "min_reconnect_interval", &min_reconnect_interval,
 113          sizeof(int), 0644, NULL, &proc_dointvec},
 114         {5, "max_reconnect_interval", &max_reconnect_interval,
 115          sizeof(int), 0644, NULL, &proc_dointvec},
 116         {6, "concurrent_peers", &concurrent_peers,
 117          sizeof(int), 0444, NULL, &proc_dointvec},
 118         {7, "cksum", &cksum,
 119          sizeof(int), 0644, NULL, &proc_dointvec},
 120         {8, "timeout", &timeout,
 121          sizeof(int), 0644, NULL, &proc_dointvec},
 122         {9, "ntx", &ntx,
 123          sizeof(int), 0444, NULL, &proc_dointvec},
 124         {10, "credits", &credits,
 125          sizeof(int), 0444, NULL, &proc_dointvec},
 126         {11, "peer_credits", &peer_credits,
 127          sizeof(int), 0444, NULL, &proc_dointvec},
 128         {12, "sd_retries", &sd_retries,
 129          sizeof(int), 0444, NULL, &proc_dointvec},
 130         {13, "keepalive", &keepalive,
 131          sizeof(int), 0644, NULL, &proc_dointvec},
 132         {14, "concurrent_sends", &concurrent_sends,
 133          sizeof(int), 0644, NULL, &proc_dointvec},
 134         {0}
 135 };
 136
 137 static ctl_table kibnal_top_ctl_table[] = {
 138         {203, "openibnal", NULL, 0, 0555, kibnal_ctl_table},
 139         {0}
 140 };
 141
 142 int
 143 kibnal_tunables_init ()
 144 {
 145         kibnal_tunables.kib_sysctl =
 146                 register_sysctl_table(kibnal_top_ctl_table, 0);
 147
 148         if (kibnal_tunables.kib_sysctl == NULL)
 149                 CWARN("Can't setup /proc tunables\n");
 150
 151         if (*kibnal_tunables.kib_concurrent_sends > IBNAL_RX_MSGS)
 152                 *kibnal_tunables.kib_concurrent_sends = IBNAL_RX_MSGS;
 153         if (*kibnal_tunables.kib_concurrent_sends < IBNAL_MSG_QUEUE_SIZE)
 154                 *kibnal_tunables.kib_concurrent_sends = IBNAL_MSG_QUEUE_SIZE;
 155
 156         return 0;
 157 }
 158
 159 void
 160 kibnal_tunables_fini ()
 161 {
 162         if (kibnal_tunables.kib_sysctl != NULL)
 163                 unregister_sysctl_table(kibnal_tunables.kib_sysctl);
 164 }
 165
 166 #else
 167
 168 int
 169 kibnal_tunables_init ()
 170 {
 171         return 0;
 172 }
 173
 174 void
 175 kibnal_tunables_fini ()
 176 {
 177 }
 178
 179 #endif