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 (C) 2001, 2002 Cluster File Systems, Inc.
   5  *   Author: Eric Barton <eric@bartonsoftware.com>
   6  *
   7  *   Portals is free software; you can redistribute it and/or
   8  *   modify it under the terms of version 2 of the GNU General Public
   9  *   License as published by the Free Software Foundation.
  10  *
  11  *   Portals is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with Portals; if not, write to the Free Software
  18  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "socklnd.h"
  22
  23 static int sock_timeout = 50;
  24 CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
  25                 "dead socket timeout (seconds)");
  26
  27 static int credits = 256;
  28 CFS_MODULE_PARM(credits, "i", int, 0444,
  29                 "# concurrent sends");
  30
  31 static int peer_credits = 8;
  32 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
  33                 "# concurrent sends to 1 peer");
  34
  35 static int nconnds = 4;
  36 CFS_MODULE_PARM(nconnds, "i", int, 0444,
  37                 "# connection daemons");
  38
  39 static int min_reconnectms = 1000;
  40 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
  41                 "min connection retry interval (mS)");
  42
  43 static int max_reconnectms = 60000;
  44 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
  45                 "max connection retry interval (mS)");
  46
  47 #if defined(__APPLE__) && !defined(__DARWIN8__)
  48 # define DEFAULT_EAGER_ACK 1
  49 #else
  50 # define DEFAULT_EAGER_ACK 0
  51 #endif
  52 static int eager_ack = DEFAULT_EAGER_ACK;
  53 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
  54                 "send tcp ack packets eagerly");
  55
  56 static int typed_conns = 1;
  57 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
  58                 "use different sockets for bulk");
  59
  60 static int min_bulk = (1<<10);
  61 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
  62                 "smallest 'large' message");
  63
  64 #ifdef __APPLE__
  65 # ifdef __DARWIN8__
  66 #  define DEFAULT_BUFFER_SIZE (224*1024)
  67 # else
  68 #  define DEFAULT_BUFFER_SIZE (1152 * 1024)
  69 # endif
  70 #else
  71 # define DEFAULT_BUFFER_SIZE 0
  72 #endif
  73 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
  74 CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
  75                 "socket tx buffer size (0 for system default)");
  76
  77 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
  78 CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
  79                 "socket rx buffer size (0 for system default)");
  80
  81 static int nagle = 0;
  82 CFS_MODULE_PARM(nagle, "i", int, 0644,
  83                 "enable NAGLE?");
  84
  85 static int keepalive_idle = 30;
  86 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
  87                 "# idle seconds before probe");
  88
  89 #ifdef HAVE_BGL_SUPPORT
  90 #define DEFAULT_KEEPALIVE_COUNT  100
  91 #else
  92 #define DEFAULT_KEEPALIVE_COUNT  5
  93 #endif
  94 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
  95 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
  96                 "# missed probes == dead");
  97
  98 static int keepalive_intvl = 5;
  99 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
 100                 "seconds between probes");
 101
 102 static int enable_csum = 0;
 103 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
 104                 "enable check sum");
 105
 106 static int inject_csum_error = 0;
 107 CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
 108                 "set non-zero to inject a checksum error");
 109 #ifdef CPU_AFFINITY
 110 static int enable_irq_affinity = 1;
 111 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
 112                 "enable IRQ affinity");
 113 #endif
 114
 115 static unsigned int zc_min_frag = (2<<10);
 116 CFS_MODULE_PARM(zc_min_frag, "i", int, 0644,
 117                 "minimum fragment to zero copy");
 118
 119 #ifdef SOCKNAL_BACKOFF
 120 static int backoff_init = 3;
 121 CFS_MODULE_PARM(backoff_init, "i", int, 0644,
 122                 "seconds for initial tcp backoff");
 123
 124 static int backoff_max = 3;
 125 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
 126                 "seconds for maximum tcp backoff");
 127 #endif
 128
 129 #if SOCKNAL_VERSION_DEBUG
 130 static int protocol = 2;
 131 CFS_MODULE_PARM(protocol, "i", int, 0644,
 132                 "protocol version");
 133 #endif
 134
 135 ksock_tunables_t ksocknal_tunables = {
 136         .ksnd_timeout         = &sock_timeout,
 137         .ksnd_credits         = &credits,
 138         .ksnd_peercredits     = &peer_credits,
 139         .ksnd_nconnds         = &nconnds,
 140         .ksnd_min_reconnectms = &min_reconnectms,
 141         .ksnd_max_reconnectms = &max_reconnectms,
 142         .ksnd_eager_ack       = &eager_ack,
 143         .ksnd_typed_conns     = &typed_conns,
 144         .ksnd_min_bulk        = &min_bulk,
 145         .ksnd_tx_buffer_size  = &tx_buffer_size,
 146         .ksnd_rx_buffer_size  = &rx_buffer_size,
 147         .ksnd_nagle           = &nagle,
 148         .ksnd_keepalive_idle  = &keepalive_idle,
 149         .ksnd_keepalive_count = &keepalive_count,
 150         .ksnd_keepalive_intvl = &keepalive_intvl,
 151         .ksnd_enable_csum     = &enable_csum,
 152         .ksnd_inject_csum_error = &inject_csum_error,
 153         .ksnd_zc_min_frag     = &zc_min_frag,
 154 #ifdef CPU_AFFINITY
 155         .ksnd_irq_affinity    = &enable_irq_affinity,
 156 #endif
 157 #ifdef SOCKNAL_BACKOFF
 158         .ksnd_backoff_init    = &backoff_init,
 159         .ksnd_backoff_max     = &backoff_max,
 160 #endif
 161 #if SOCKNAL_VERSION_DEBUG
 162         .ksnd_protocol        = &protocol,
 163 #endif
 164 };
 165