lnet/klnds/socklnd/socklnd_modparams.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
   5  *
   6  *   Author: Eric Barton <eric@bartonsoftware.com>
   7  *
   8  *   Portals is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Portals is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Portals; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "socklnd.h"
  23
  24 static int sock_timeout = 50;
  25 CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
  26                 "dead socket timeout (seconds)");
  27
  28 static int credits = 256;
  29 CFS_MODULE_PARM(credits, "i", int, 0444,
  30                 "# concurrent sends");
  31
  32 static int peer_credits = 8;
  33 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  34                 "# concurrent sends to 1 peer");
  35
  36 static int nconnds = 4;
  37 CFS_MODULE_PARM(nconnds, "i", int, 0444,
  38                 "# connection daemons");
  39
  40 static int min_reconnectms = 1000;
  41 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
  42                 "min connection retry interval (mS)");
  43
  44 static int max_reconnectms = 60000;
  45 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
  46                 "max connection retry interval (mS)");
  47
  48 #if defined(__APPLE__) && !defined(__DARWIN8__)
  49 # define DEFAULT_EAGER_ACK 1
  50 #else
  51 # define DEFAULT_EAGER_ACK 0
  52 #endif
  53 static int eager_ack = DEFAULT_EAGER_ACK;
  54 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
  55                 "send tcp ack packets eagerly");
  56
  57 static int typed_conns = 1;
  58 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
  59                 "use different sockets for bulk");
  60
  61 static int min_bulk = (1<<10);
  62 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
  63                 "smallest 'large' message");
  64
  65 #ifdef __APPLE__
  66 # ifdef __DARWIN8__
  67 #  define DEFAULT_BUFFER_SIZE (224*1024)
  68 # else
  69 #  define DEFAULT_BUFFER_SIZE (1152 * 1024)
  70 # endif
  71 #else
  72 # define DEFAULT_BUFFER_SIZE 0
  73 #endif
  74 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
  75 CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
  76                 "socket tx buffer size (0 for system default)");
  77
  78 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
  79 CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
  80                 "socket rx buffer size (0 for system default)");
  81
  82 static int nagle = 0;
  83 CFS_MODULE_PARM(nagle, "i", int, 0644,
  84                 "enable NAGLE?");
  85
  86 static int keepalive_idle = 30;
  87 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
  88                 "# idle seconds before probe");
  89
  90 #ifdef HAVE_BGL_SUPPORT
  91 #define DEFAULT_KEEPALIVE_COUNT  100
  92 #else
  93 #define DEFAULT_KEEPALIVE_COUNT  5
  94 #endif
  95 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
  96 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
  97                 "# missed probes == dead");
  98
  99 static int keepalive_intvl = 5;
 100 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
 101                 "seconds between probes");
 102
 103 static int enable_csum = 0;
 104 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
 105                 "enable check sum");
 106
 107 static int inject_csum_error = 0;
 108 CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
 109                 "set non-zero to inject a checksum error");
 110 #ifdef CPU_AFFINITY
 111 static int enable_irq_affinity = 0;
 112 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
 113                 "enable IRQ affinity");
 114 #endif
 115
 116 static unsigned int zc_min_frag = (2<<10);
 117 CFS_MODULE_PARM(zc_min_frag, "i", int, 0644,
 118                 "minimum fragment to zero copy");
 119
 120 static unsigned int zc_recv = 0;
 121 CFS_MODULE_PARM(zc_recv, "i", int, 0444,
 122                 "enable ZC recv for Chelsio driver");
 123
 124 static unsigned int zc_recv_min_nfrags = 16;
 125 CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0444,
 126                 "minimum # of fragments to enable ZC recv");
 127
 128 #ifdef SOCKNAL_BACKOFF
 129 static int backoff_init = 3;
 130 CFS_MODULE_PARM(backoff_init, "i", int, 0644,
 131                 "seconds for initial tcp backoff");
 132
 133 static int backoff_max = 3;
 134 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
 135                 "seconds for maximum tcp backoff");
 136 #endif
 137
 138 #if SOCKNAL_VERSION_DEBUG
 139 static int protocol = 2;
 140 CFS_MODULE_PARM(protocol, "i", int, 0644,
 141                 "protocol version");
 142 #endif
 143
 144 ksock_tunables_t ksocknal_tunables;
 145
 146 int ksocknal_tunables_init(void)
 147 {
 148
 149         /* initialize ksocknal_tunables structure */
 150         ksocknal_tunables.ksnd_timeout            = &sock_timeout;
 151         ksocknal_tunables.ksnd_nconnds            = &nconnds;
 152         ksocknal_tunables.ksnd_min_reconnectms    = &min_reconnectms;
 153         ksocknal_tunables.ksnd_max_reconnectms    = &max_reconnectms;
 154         ksocknal_tunables.ksnd_eager_ack          = &eager_ack;
 155         ksocknal_tunables.ksnd_typed_conns        = &typed_conns;
 156         ksocknal_tunables.ksnd_min_bulk           = &min_bulk;
 157         ksocknal_tunables.ksnd_tx_buffer_size     = &tx_buffer_size;
 158         ksocknal_tunables.ksnd_rx_buffer_size     = &rx_buffer_size;
 159         ksocknal_tunables.ksnd_nagle              = &nagle;
 160         ksocknal_tunables.ksnd_keepalive_idle     = &keepalive_idle;
 161         ksocknal_tunables.ksnd_keepalive_count    = &keepalive_count;
 162         ksocknal_tunables.ksnd_keepalive_intvl    = &keepalive_intvl;
 163         ksocknal_tunables.ksnd_credits            = &credits;
 164         ksocknal_tunables.ksnd_peercredits        = &peer_credits;
 165         ksocknal_tunables.ksnd_enable_csum        = &enable_csum;
 166         ksocknal_tunables.ksnd_inject_csum_error  = &inject_csum_error;
 167         ksocknal_tunables.ksnd_zc_min_frag        = &zc_min_frag;
 168         ksocknal_tunables.ksnd_zc_recv            = &zc_recv;
 169         ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
 170
 171
 172 #ifdef CPU_AFFINITY
 173         ksocknal_tunables.ksnd_irq_affinity       = &enable_irq_affinity;
 174 #endif
 175
 176 #ifdef SOCKNAL_BACKOFF
 177         ksocknal_tunables.ksnd_backoff_init       = &backoff_init;
 178         ksocknal_tunables.ksnd_backoff_max        = &backoff_max;
 179 #endif
 180
 181 #if SOCKNAL_VERSION_DEBUG
 182         ksocknal_tunables.ksnd_protocol           = &protocol;
 183 #endif
 184
 185 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
 186         ksocknal_tunables.ksnd_sysctl             =  NULL;
 187 #endif
 188
 189         /* initialize platform-sepcific tunables */
 190         return ksocknal_lib_tunables_init();
 191 };
 192
 193 void ksocknal_tunables_fini(void)
 194 {
 195         ksocknal_lib_tunables_fini();
 196 }