lnet/klnds/ralnd/ralnd_modparams.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
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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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  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
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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/ralnd/ralnd_modparams.c
  37  *
  38  * Author: Eric Barton <eric@bartonsoftware.com>
  39  */
  40
  41 #include "ralnd.h"
  42
  43 static int n_connd = 4;
  44 CFS_MODULE_PARM(n_connd, "i", int, 0444,
  45                 "# of connection daemons");
  46
  47 static int min_reconnect_interval = 1;
  48 CFS_MODULE_PARM(min_reconnect_interval, "i", int, 0644,
  49                 "minimum connection retry interval (seconds)");
  50
  51 static int max_reconnect_interval = 60;
  52 CFS_MODULE_PARM(max_reconnect_interval, "i", int, 0644,
  53                 "maximum connection retry interval (seconds)");
  54
  55 static int ntx = 256;
  56 CFS_MODULE_PARM(ntx, "i", int, 0444,
  57                 "# of transmit descriptors");
  58
  59 static int credits = 128;
  60 CFS_MODULE_PARM(credits, "i", int, 0444,
  61                 "# concurrent sends");
  62
  63 static int peer_credits = 32;
  64 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  65                 "# concurrent sends to 1 peer");
  66
  67 static int fma_cq_size = 8192;
  68 CFS_MODULE_PARM(fma_cq_size, "i", int, 0444,
  69                 "size of the completion queue");
  70
  71 static int timeout = 30;
  72 CFS_MODULE_PARM(timeout, "i", int, 0644,
  73                 "communications timeout (seconds)");
  74
  75 static int max_immediate = (2<<10);
  76 CFS_MODULE_PARM(max_immediate, "i", int, 0644,
  77                 "immediate/RDMA breakpoint");
  78
  79 kra_tunables_t kranal_tunables = {
  80         .kra_n_connd                = &n_connd,
  81         .kra_min_reconnect_interval = &min_reconnect_interval,
  82         .kra_max_reconnect_interval = &max_reconnect_interval,
  83         .kra_ntx                    = &ntx,
  84         .kra_credits                = &credits,
  85         .kra_peercredits            = &peer_credits,
  86         .kra_fma_cq_size            = &fma_cq_size,
  87         .kra_timeout                = &timeout,
  88         .kra_max_immediate          = &max_immediate,
  89 };
  90
  91 #if CONFIG_SYSCTL && !CFS_SYSFS_MODULE_PARM
  92 static cfs_sysctl_table_t kranal_ctl_table[] = {
  93         {
  94                 .ctl_name = 1,
  95                 .procname = "n_connd",
  96                 .data     = &n_connd,
  97                 .maxlen   = sizeof(int),
  98                 .mode     = 0444,
  99                 .proc_handler = &proc_dointvec
 100         },
 101         {
 102                 .ctl_name = 2,
 103                 .procname = "min_reconnect_interval",
 104                 .data     = &min_reconnect_interval,
 105                 .maxlen   = sizeof(int),
 106                 .mode     = 0644,
 107                 .proc_handler = &proc_dointvec
 108         },
 109         {
 110                 .ctl_name = 3,
 111                 .procname = "max_reconnect_interval",
 112                 .data     = &max_reconnect_interval,
 113                 .maxlen   = sizeof(int),
 114                 .mode     = 0644,
 115                 .proc_handler = &proc_dointvec
 116         },
 117         {
 118                 .ctl_name = 4,
 119                 .procname = "ntx",
 120                 .data     = &ntx,
 121                 .maxlen   = sizeof(int),
 122                 .mode     = 0444,
 123                 .proc_handler = &proc_dointvec
 124         },
 125         {
 126                 .ctl_name = 5,
 127                 .procname = "credits",
 128                 .data     = &credits,
 129                 .maxlen   = sizeof(int),
 130                 .mode     = 0444,
 131                 .proc_handler = &proc_dointvec
 132         },
 133         {
 134                 .ctl_name = 6,
 135                 .procname = "peer_credits",
 136                 .data     = &peer_credits,
 137                 .maxlen   = sizeof(int),
 138                 .mode     = 0444,
 139                 .proc_handler = &proc_dointvec
 140         },
 141         {
 142                 .ctl_name = 7,
 143                 .procname = "fma_cq_size",
 144                 .data     = &fma_cq_size,
 145                 .maxlen   = sizeof(int),
 146                 .mode     = 0444,
 147                 .proc_handler = &proc_dointvec
 148         },
 149         {
 150                 .ctl_name = 8,
 151                 .procname = "timeout",
 152                 .data     = &timeout,
 153                 .maxlen   = sizeof(int),
 154                 .mode     = 0644,
 155                 .proc_handler = &proc_dointvec
 156         },
 157         {
 158                 .ctl_name = 9,
 159                 .procname = "max_immediate",
 160                 .data     = &max_immediate,
 161                 .maxlen   = sizeof(int),
 162                 .mode     = 0644,
 163                 .proc_handler = &proc_dointvec
 164         },
 165         {0}
 166 };
 167
 168 static cfs_sysctl_table_t kranal_top_ctl_table[] = {
 169         {
 170                 .ctl_name = 202,
 171                 .procname = "ranal",
 172                 .data     = NULL,
 173                 .maxlen   = 0,
 174                 .mode     = 0555,
 175                 .child    = kranal_ctl_table
 176         },
 177         {0}
 178 };
 179
 180 int
 181 kranal_tunables_init ()
 182 {
 183         kranal_tunables.kra_sysctl =
 184                 cfs_register_sysctl_table(kranal_top_ctl_table, 0);
 185
 186         if (kranal_tunables.kra_sysctl == NULL)
 187                 CWARN("Can't setup /proc tunables\n");
 188
 189         return 0;
 190 }
 191
 192 void
 193 kranal_tunables_fini ()
 194 {
 195         if (kranal_tunables.kra_sysctl != NULL)
 196                 cfs_unregister_sysctl_table(kranal_tunables.kra_sysctl);
 197 }
 198
 199 #else
 200
 201 int
 202 kranal_tunables_init ()
 203 {
 204         return 0;
 205 }
 206
 207 void
 208 kranal_tunables_fini ()
 209 {
 210 }
 211
 212 #endif