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 * Copyright (c) 2011, Whamcloud, Inc.
8 * Author: Eric Barton <eric@bartonsoftware.com>
10 * Portals is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Portals is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Portals; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 static int sock_timeout = 50;
27 CFS_MODULE_PARM(sock_timeout, "i", int, 0644,
28 "dead socket timeout (seconds)");
30 static int credits = 256;
31 CFS_MODULE_PARM(credits, "i", int, 0444,
32 "# concurrent sends");
34 static int peer_credits = 8;
35 CFS_MODULE_PARM(peer_credits, "i", int, 0444,
36 "# concurrent sends to 1 peer");
38 static int peer_buffer_credits = 0;
39 CFS_MODULE_PARM(peer_buffer_credits, "i", int, 0444,
40 "# per-peer router buffer credits");
42 static int peer_timeout = 180;
43 CFS_MODULE_PARM(peer_timeout, "i", int, 0444,
44 "Seconds without aliveness news to declare peer dead (<=0 to disable)");
46 static int nconnds = 4;
47 CFS_MODULE_PARM(nconnds, "i", int, 0444,
48 "# connection daemons while starting");
50 static int nconnds_max = 64;
51 CFS_MODULE_PARM(nconnds_max, "i", int, 0444,
52 "max # connection daemons");
54 static int min_reconnectms = 1000;
55 CFS_MODULE_PARM(min_reconnectms, "i", int, 0644,
56 "min connection retry interval (mS)");
58 static int max_reconnectms = 60000;
59 CFS_MODULE_PARM(max_reconnectms, "i", int, 0644,
60 "max connection retry interval (mS)");
62 #if defined(__APPLE__) && !defined(__DARWIN8__)
63 # define DEFAULT_EAGER_ACK 1
65 # define DEFAULT_EAGER_ACK 0
67 static int eager_ack = DEFAULT_EAGER_ACK;
68 CFS_MODULE_PARM(eager_ack, "i", int, 0644,
69 "send tcp ack packets eagerly");
71 static int typed_conns = 1;
72 CFS_MODULE_PARM(typed_conns, "i", int, 0444,
73 "use different sockets for bulk");
75 static int min_bulk = (1<<10);
76 CFS_MODULE_PARM(min_bulk, "i", int, 0644,
77 "smallest 'large' message");
81 # define DEFAULT_BUFFER_SIZE (224*1024)
83 # define DEFAULT_BUFFER_SIZE (1152 * 1024)
86 # define DEFAULT_BUFFER_SIZE 0
88 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
89 CFS_MODULE_PARM(tx_buffer_size, "i", int, 0644,
90 "socket tx buffer size (0 for system default)");
92 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
93 CFS_MODULE_PARM(rx_buffer_size, "i", int, 0644,
94 "socket rx buffer size (0 for system default)");
97 CFS_MODULE_PARM(nagle, "i", int, 0644,
100 static int round_robin = 1;
101 CFS_MODULE_PARM(round_robin, "i", int, 0644,
102 "Round robin for multiple interfaces");
104 static int keepalive = 30;
105 CFS_MODULE_PARM(keepalive, "i", int, 0644,
106 "# seconds before send keepalive");
108 static int keepalive_idle = 30;
109 CFS_MODULE_PARM(keepalive_idle, "i", int, 0644,
110 "# idle seconds before probe");
112 #ifdef HAVE_BGL_SUPPORT
113 #define DEFAULT_KEEPALIVE_COUNT 100
115 #define DEFAULT_KEEPALIVE_COUNT 5
117 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
118 CFS_MODULE_PARM(keepalive_count, "i", int, 0644,
119 "# missed probes == dead");
121 static int keepalive_intvl = 5;
122 CFS_MODULE_PARM(keepalive_intvl, "i", int, 0644,
123 "seconds between probes");
125 static int enable_csum = 0;
126 CFS_MODULE_PARM(enable_csum, "i", int, 0644,
129 static int inject_csum_error = 0;
130 CFS_MODULE_PARM(inject_csum_error, "i", int, 0644,
131 "set non-zero to inject a checksum error");
133 static int enable_irq_affinity = 0;
134 CFS_MODULE_PARM(enable_irq_affinity, "i", int, 0644,
135 "enable IRQ affinity");
138 static int nonblk_zcack = 1;
139 CFS_MODULE_PARM(nonblk_zcack, "i", int, 0644,
140 "always send ZC-ACK on non-blocking connection");
142 static unsigned int zc_min_payload = (16 << 10);
143 CFS_MODULE_PARM(zc_min_payload, "i", int, 0644,
144 "minimum payload size to zero copy");
146 static unsigned int zc_recv = 0;
147 CFS_MODULE_PARM(zc_recv, "i", int, 0644,
148 "enable ZC recv for Chelsio driver");
150 static unsigned int zc_recv_min_nfrags = 16;
151 CFS_MODULE_PARM(zc_recv_min_nfrags, "i", int, 0644,
152 "minimum # of fragments to enable ZC recv");
154 #ifdef SOCKNAL_BACKOFF
155 static int backoff_init = 3;
156 CFS_MODULE_PARM(backoff_init, "i", int, 0644,
157 "seconds for initial tcp backoff");
159 static int backoff_max = 3;
160 CFS_MODULE_PARM(backoff_max, "i", int, 0644,
161 "seconds for maximum tcp backoff");
164 #if SOCKNAL_VERSION_DEBUG
165 static int protocol = 3;
166 CFS_MODULE_PARM(protocol, "i", int, 0644,
170 ksock_tunables_t ksocknal_tunables;
172 int ksocknal_tunables_init(void)
175 /* initialize ksocknal_tunables structure */
176 ksocknal_tunables.ksnd_timeout = &sock_timeout;
177 ksocknal_tunables.ksnd_nconnds = &nconnds;
178 ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
179 ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
180 ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
181 ksocknal_tunables.ksnd_eager_ack = &eager_ack;
182 ksocknal_tunables.ksnd_typed_conns = &typed_conns;
183 ksocknal_tunables.ksnd_min_bulk = &min_bulk;
184 ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
185 ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
186 ksocknal_tunables.ksnd_nagle = &nagle;
187 ksocknal_tunables.ksnd_round_robin = &round_robin;
188 ksocknal_tunables.ksnd_keepalive = &keepalive;
189 ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
190 ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
191 ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
192 ksocknal_tunables.ksnd_credits = &credits;
193 ksocknal_tunables.ksnd_peertxcredits = &peer_credits;
194 ksocknal_tunables.ksnd_peerrtrcredits = &peer_buffer_credits;
195 ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
196 ksocknal_tunables.ksnd_enable_csum = &enable_csum;
197 ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
198 ksocknal_tunables.ksnd_nonblk_zcack = &nonblk_zcack;
199 ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
200 ksocknal_tunables.ksnd_zc_recv = &zc_recv;
201 ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
204 ksocknal_tunables.ksnd_irq_affinity = &enable_irq_affinity;
207 #ifdef SOCKNAL_BACKOFF
208 ksocknal_tunables.ksnd_backoff_init = &backoff_init;
209 ksocknal_tunables.ksnd_backoff_max = &backoff_max;
212 #if SOCKNAL_VERSION_DEBUG
213 ksocknal_tunables.ksnd_protocol = &protocol;
216 #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
217 ksocknal_tunables.ksnd_sysctl = NULL;
220 if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
221 *ksocknal_tunables.ksnd_zc_min_payload = (2 << 10);
223 /* initialize platform-sepcific tunables */
224 return ksocknal_lib_tunables_init();
227 void ksocknal_tunables_fini(void)
229 ksocknal_lib_tunables_fini();