1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. 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 peer_buffer_credits = 0;
37 CFS_MODULE_PARM(peer_buffer_credits, "i", int, 0444,
38 "# per-peer router buffer credits");
40 static int peer_timeout = 180;
41 CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
42 "Seconds without aliveness news to declare peer dead (<=0 to disable)");
44 static int nconnds = 4;
45 CFS_MODULE_PARM(nconnds, "i", int, 0444,
46 "# connection daemons while starting");
48 static int nconnds_max = 64;
49 CFS_MODULE_PARM(nconnds_max, "i", int, 0444,
50 "max # connection daemons");
52 static int min_reconnectms = 1000;
53 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
54 "min connection retry interval (mS)");
56 static int max_reconnectms = 60000;
57 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
58 "max connection retry interval (mS)");
60 #if defined(__APPLE__) && !defined(__DARWIN8__)
61 # define DEFAULT_EAGER_ACK 1
63 # define DEFAULT_EAGER_ACK 0
65 static int eager_ack = DEFAULT_EAGER_ACK;
66 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
67 "send tcp ack packets eagerly");
69 static int typed_conns = 1;
70 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
71 "use different sockets for bulk");
73 static int min_bulk = (1<<10);
74 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
75 "smallest 'large' message");
79 # define DEFAULT_BUFFER_SIZE (224*1024)
81 # define DEFAULT_BUFFER_SIZE (1152 * 1024)
84 # define DEFAULT_BUFFER_SIZE 0
86 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
87 CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
88 "socket tx buffer size (0 for system default)");
90 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
91 CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
92 "socket rx buffer size (0 for system default)");
95 CFS_MODULE_PARM(nagle, "i", int, 0644,
98 static int round_robin = 1;
99 CFS_MODULE_PARM(round_robin, "i", int, 0644,
100 "Round robin for multiple interfaces");
102 static int keepalive = 30;
103 CFS_MODULE_PARM(keepalive, "i", int, 0644,
104 "# seconds before send keepalive");
106 static int keepalive_idle = 30;
107 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
108 "# idle seconds before probe");
110 #ifdef HAVE_BGL_SUPPORT
111 #define DEFAULT_KEEPALIVE_COUNT 100
113 #define DEFAULT_KEEPALIVE_COUNT 5
115 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
116 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
117 "# missed probes == dead");
119 static int keepalive_intvl = 5;
120 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
121 "seconds between probes");
123 static int enable_csum = 0;
124 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
127 static int inject_csum_error = 0;
128 CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
129 "set non-zero to inject a checksum error");
131 static int enable_irq_affinity = 0;
132 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
133 "enable IRQ affinity");
136 static int nonblk_zcack = 1;
137 CFS_MODULE_PARM(nonblk_zcack, "i", int, 0644,
138 "always send ZC-ACK on non-blocking connection");
140 static unsigned int zc_min_payload = (16 << 10);
141 CFS_MODULE_PARM(zc_min_payload, "i", int, 0644,
142 "minimum payload size to zero copy");
144 static unsigned int zc_recv = 0;
145 CFS_MODULE_PARM(zc_recv, "i", int, 0644,
146 "enable ZC recv for Chelsio driver");
148 static unsigned int zc_recv_min_nfrags = 16;
149 CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0644,
150 "minimum # of fragments to enable ZC recv");
152 #ifdef SOCKNAL_BACKOFF
153 static int backoff_init = 3;
154 CFS_MODULE_PARM(backoff_init, "i", int, 0644,
155 "seconds for initial tcp backoff");
157 static int backoff_max = 3;
158 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
159 "seconds for maximum tcp backoff");
162 #if SOCKNAL_VERSION_DEBUG
163 static int protocol = 3;
164 CFS_MODULE_PARM(protocol, "i", int, 0644,
168 ksock_tunables_t ksocknal_tunables;
170 int ksocknal_tunables_init(void)
173 /* initialize ksocknal_tunables structure */
174 ksocknal_tunables.ksnd_timeout = &sock_timeout;
175 ksocknal_tunables.ksnd_nconnds = &nconnds;
176 ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
177 ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
178 ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
179 ksocknal_tunables.ksnd_eager_ack = &eager_ack;
180 ksocknal_tunables.ksnd_typed_conns = &typed_conns;
181 ksocknal_tunables.ksnd_min_bulk = &min_bulk;
182 ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
183 ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
184 ksocknal_tunables.ksnd_nagle = &nagle;
185 ksocknal_tunables.ksnd_round_robin = &round_robin;
186 ksocknal_tunables.ksnd_keepalive = &keepalive;
187 ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
188 ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
189 ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
190 ksocknal_tunables.ksnd_credits = &credits;
191 ksocknal_tunables.ksnd_peertxcredits = &peer_credits;
192 ksocknal_tunables.ksnd_peerrtrcredits = &peer_buffer_credits;
193 ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
194 ksocknal_tunables.ksnd_enable_csum = &enable_csum;
195 ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
196 ksocknal_tunables.ksnd_nonblk_zcack = &nonblk_zcack;
197 ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
198 ksocknal_tunables.ksnd_zc_recv = &zc_recv;
199 ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
202 ksocknal_tunables.ksnd_irq_affinity = &enable_irq_affinity;
205 #ifdef SOCKNAL_BACKOFF
206 ksocknal_tunables.ksnd_backoff_init = &backoff_init;
207 ksocknal_tunables.ksnd_backoff_max = &backoff_max;
210 #if SOCKNAL_VERSION_DEBUG
211 ksocknal_tunables.ksnd_protocol = &protocol;
214 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
215 ksocknal_tunables.ksnd_sysctl = NULL;
218 if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
219 *ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
221 /* initialize platform-sepcific tunables */
222 return ksocknal_lib_tunables_init();
225 void ksocknal_tunables_fini(void)
227 ksocknal_lib_tunables_fini();