lnet/klnds/ralnd/ralnd_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 "ralnd.h"
  25
  26 static int n_connd = 4;
  27 CFS_MODULE_PARM(n_connd, "i", int, 0444,
  28                 "# of connection daemons");
  29
  30 static int min_reconnect_interval = 1;
  31 CFS_MODULE_PARM(min_reconnect_interval, "i", int, 0644,
  32                 "minimum connection retry interval (seconds)");
  33
  34 static int max_reconnect_interval = 60;
  35 CFS_MODULE_PARM(max_reconnect_interval, "i", int, 0644,
  36                 "maximum connection retry interval (seconds)");
  37
  38 static int ntx = 256;
  39 CFS_MODULE_PARM(ntx, "i", int, 0444,
  40                 "# of transmit descriptors");
  41
  42 static int credits = 128;
  43 CFS_MODULE_PARM(credits, "i", int, 0444,
  44                 "# concurrent sends");
  45
  46 static int peer_credits = 32;
  47 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  48                 "# concurrent sends to 1 peer");
  49
  50 static int fma_cq_size = 8192;
  51 CFS_MODULE_PARM(fma_cq_size, "i", int, 0444,
  52                 "size of the completion queue");
  53
  54 static int timeout = 30;
  55 CFS_MODULE_PARM(timeout, "i", int, 0644,
  56                 "communications timeout (seconds)");
  57
  58 static int max_immediate = (2<<10);
  59 CFS_MODULE_PARM(max_immediate, "i", int, 0644,
  60                 "immediate/RDMA breakpoint");
  61
  62 kra_tunables_t kranal_tunables = {
  63         .kra_n_connd                = &n_connd,
  64         .kra_min_reconnect_interval = &min_reconnect_interval,
  65         .kra_max_reconnect_interval = &max_reconnect_interval,
  66         .kra_ntx                    = &ntx,
  67         .kra_credits                = &credits,
  68         .kra_peercredits            = &peer_credits,
  69         .kra_fma_cq_size            = &fma_cq_size,
  70         .kra_timeout                = &timeout,
  71         .kra_max_immediate          = &max_immediate,
  72 };
  73
  74 #if CONFIG_SYSCTL && !CFS_SYSFS_MODULE_PARM
  75 static cfs_sysctl_table_t kranal_ctl_table[] = {
  76         {
  77                 .ctl_name = 1,
  78                 .procname = "n_connd",
  79                 .data     = &n_connd,
  80                 .maxlen   = sizeof(int),
  81                 .mode     = 0444,
  82                 .proc_handler = &proc_dointvec
  83         },
  84         {
  85                 .ctl_name = 2,
  86                 .procname = "min_reconnect_interval",
  87                 .data     = &min_reconnect_interval,
  88                 .maxlen   = sizeof(int),
  89                 .mode     = 0644,
  90                 .proc_handler = &proc_dointvec
  91         },
  92         {
  93                 .ctl_name = 3,
  94                 .procname = "max_reconnect_interval",
  95                 .data     = &max_reconnect_interval,
  96                 .maxlen   = sizeof(int),
  97                 .mode     = 0644,
  98                 .proc_handler = &proc_dointvec
  99         },
 100         {
 101                 .ctl_name = 4,
 102                 .procname = "ntx",
 103                 .data     = &ntx,
 104                 .maxlen   = sizeof(int),
 105                 .mode     = 0444,
 106                 .proc_handler = &proc_dointvec
 107         },
 108         {
 109                 .ctl_name = 5,
 110                 .procname = "credits",
 111                 .data     = &credits,
 112                 .maxlen   = sizeof(int),
 113                 .mode     = 0444,
 114                 .proc_handler = &proc_dointvec
 115         },
 116         {
 117                 .ctl_name = 6,
 118                 .procname = "peer_credits",
 119                 .data     = &peer_credits,
 120                 .maxlen   = sizeof(int),
 121                 .mode     = 0444,
 122                 .proc_handler = &proc_dointvec
 123         },
 124         {
 125                 .ctl_name = 7,
 126                 .procname = "fma_cq_size",
 127                 .data     = &fma_cq_size,
 128                 .maxlen   = sizeof(int),
 129                 .mode     = 0444,
 130                 .proc_handler = &proc_dointvec
 131         },
 132         {
 133                 .ctl_name = 8,
 134                 .procname = "timeout",
 135                 .data     = &timeout,
 136                 .maxlen   = sizeof(int),
 137                 .mode     = 0644,
 138                 .proc_handler = &proc_dointvec
 139         },
 140         {
 141                 .ctl_name = 9,
 142                 .procname = "max_immediate",
 143                 .data     = &max_immediate,
 144                 .maxlen   = sizeof(int),
 145                 .mode     = 0644,
 146                 .proc_handler = &proc_dointvec
 147         },
 148         {0}
 149 };
 150
 151 static cfs_sysctl_table_t kranal_top_ctl_table[] = {
 152         {
 153                 .ctl_name = 202,
 154                 .procname = "ranal",
 155                 .data     = NULL,
 156                 .maxlen   = 0,
 157                 .mode     = 0555,
 158                 .child    = kranal_ctl_table
 159         },
 160         {0}
 161 };
 162
 163 int
 164 kranal_tunables_init ()
 165 {
 166         kranal_tunables.kra_sysctl =
 167                 cfs_register_sysctl_table(kranal_top_ctl_table, 0);
 168
 169         if (kranal_tunables.kra_sysctl == NULL)
 170                 CWARN("Can't setup /proc tunables\n");
 171
 172         return 0;
 173 }
 174
 175 void
 176 kranal_tunables_fini ()
 177 {
 178         if (kranal_tunables.kra_sysctl != NULL)
 179                 cfs_unregister_sysctl_table(kranal_tunables.kra_sysctl);
 180 }
 181
 182 #else
 183
 184 int
 185 kranal_tunables_init ()
 186 {
 187         return 0;
 188 }
 189
 190 void
 191 kranal_tunables_fini ()
 192 {
 193 }
 194
 195 #endif
 196