1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
6 * Author: Eric Barton <eric@bartonsoftware.com>
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.
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.
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.
24 static int sock_timeout = 50;
25 CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
26 "dead socket timeout (seconds)");
28 static int credits = 256;
29 CFS_MODULE_PARM(credits, "i", int, 0444,
30 "# concurrent sends");
32 static int peer_credits = 8;
33 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
34 "# concurrent sends to 1 peer");
36 static int nconnds = 4;
37 CFS_MODULE_PARM(nconnds, "i", int, 0444,
38 "# connection daemons");
40 static int min_reconnectms = 1000;
41 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
42 "min connection retry interval (mS)");
44 static int max_reconnectms = 60000;
45 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
46 "max connection retry interval (mS)");
48 #if defined(__APPLE__) && !defined(__DARWIN8__)
49 # define DEFAULT_EAGER_ACK 1
51 # define DEFAULT_EAGER_ACK 0
53 static int eager_ack = DEFAULT_EAGER_ACK;
54 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
55 "send tcp ack packets eagerly");
57 static int typed_conns = 1;
58 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
59 "use different sockets for bulk");
61 static int min_bulk = (1<<10);
62 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
63 "smallest 'large' message");
67 # define DEFAULT_BUFFER_SIZE (224*1024)
69 # define DEFAULT_BUFFER_SIZE (1152 * 1024)
72 # define DEFAULT_BUFFER_SIZE 0
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)");
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)");
83 CFS_MODULE_PARM(nagle, "i", int, 0644,
86 static int keepalive_idle = 30;
87 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
88 "# idle seconds before probe");
90 #ifdef HAVE_BGL_SUPPORT
91 #define DEFAULT_KEEPALIVE_COUNT 100
93 #define DEFAULT_KEEPALIVE_COUNT 5
95 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
96 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
97 "# missed probes == dead");
99 static int keepalive_intvl = 5;
100 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
101 "seconds between probes");
103 static int enable_csum = 0;
104 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
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");
111 static int enable_irq_affinity = 0;
112 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
113 "enable IRQ affinity");
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");
120 static unsigned int zc_recv = 0;
121 CFS_MODULE_PARM(zc_recv, "i", int, 0644,
122 "enable ZC recv for Chelsio driver");
124 static unsigned int zc_recv_min_nfrags = 16;
125 CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0644,
126 "minimum # of fragments to enable ZC recv");
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");
133 static int backoff_max = 3;
134 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
135 "seconds for maximum tcp backoff");
138 #if SOCKNAL_VERSION_DEBUG
139 static int protocol = 2;
140 CFS_MODULE_PARM(protocol, "i", int, 0644,
144 ksock_tunables_t ksocknal_tunables;
146 int ksocknal_tunables_init(void)
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;
173 ksocknal_tunables.ksnd_irq_affinity = &enable_irq_affinity;
176 #ifdef SOCKNAL_BACKOFF
177 ksocknal_tunables.ksnd_backoff_init = &backoff_init;
178 ksocknal_tunables.ksnd_backoff_max = &backoff_max;
181 #if SOCKNAL_VERSION_DEBUG
182 ksocknal_tunables.ksnd_protocol = &protocol;
185 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
186 ksocknal_tunables.ksnd_sysctl = NULL;
189 /* initialize platform-sepcific tunables */
190 return ksocknal_lib_tunables_init();
193 void ksocknal_tunables_fini(void)
195 ksocknal_lib_tunables_fini();