1 /*
2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Copyright (c) 2011, 2012, Intel Corporation.
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 module_param(sock_timeout, int, 0644);
26 MODULE_PARM_DESC(sock_timeout, "dead socket timeout (seconds)");
27
28 static int credits = 256;
29 module_param(credits, int, 0444);
30 MODULE_PARM_DESC(credits, "# concurrent sends");
31
32 static int peer_credits = 8;
33 module_param(peer_credits, int, 0444);
34 MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
35
36 static int peer_buffer_credits;
37 module_param(peer_buffer_credits, int, 0444);
38 MODULE_PARM_DESC(peer_buffer_credits, "# per-peer router buffer credits");
39
40 static int peer_timeout = 180;
41 module_param(peer_timeout, int, 0444);
42 MODULE_PARM_DESC(peer_timeout, "Seconds without aliveness news to declare peer dead (<=0 to disable)");
43
44 /* Number of daemons in each thread pool which is percpt,
45 * we will estimate reasonable value based on CPUs if it's not set. */
46 static unsigned int nscheds;
47 module_param(nscheds, int, 0444);
48 MODULE_PARM_DESC(nscheds, "# scheduler daemons in each pool while starting");
49
50 static int nconnds = 4;
51 module_param(nconnds, int, 0444);
52 MODULE_PARM_DESC(nconnds, "# connection daemons while starting");
53
54 static int nconnds_max = 64;
55 module_param(nconnds_max, int, 0444);
56 MODULE_PARM_DESC(nconnds_max, "max # connection daemons");
57
58 static int min_reconnectms = 1000;
59 module_param(min_reconnectms, int, 0644);
60 MODULE_PARM_DESC(min_reconnectms, "min connection retry interval (mS)");
61
62 static int max_reconnectms = 60000;
63 module_param(max_reconnectms, int, 0644);
64 MODULE_PARM_DESC(max_reconnectms, "max connection retry interval (mS)");
65
66 # define DEFAULT_EAGER_ACK 0
67 static int eager_ack = DEFAULT_EAGER_ACK;
68 module_param(eager_ack, int, 0644);
69 MODULE_PARM_DESC(eager_ack, "send tcp ack packets eagerly");
70
71 static int typed_conns = 1;
72 module_param(typed_conns, int, 0444);
73 MODULE_PARM_DESC(typed_conns, "use different sockets for bulk");
74
75 static int min_bulk = 1<<10;
76 module_param(min_bulk, int, 0644);
77 MODULE_PARM_DESC(min_bulk, "smallest 'large' message");
78
79 # define DEFAULT_BUFFER_SIZE 0
80 static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
81 module_param(tx_buffer_size, int, 0644);
82 MODULE_PARM_DESC(tx_buffer_size, "socket tx buffer size (0 for system default)");
83
84 static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
85 module_param(rx_buffer_size, int, 0644);
86 MODULE_PARM_DESC(rx_buffer_size, "socket rx buffer size (0 for system default)");
87
88 static int nagle;
89 module_param(nagle, int, 0644);
90 MODULE_PARM_DESC(nagle, "enable NAGLE?");
91
92 static int round_robin = 1;
93 module_param(round_robin, int, 0644);
94 MODULE_PARM_DESC(round_robin, "Round robin for multiple interfaces");
95
96 static int keepalive = 30;
97 module_param(keepalive, int, 0644);
98 MODULE_PARM_DESC(keepalive, "# seconds before send keepalive");
99
100 static int keepalive_idle = 30;
101 module_param(keepalive_idle, int, 0644);
102 MODULE_PARM_DESC(keepalive_idle, "# idle seconds before probe");
103
104 #define DEFAULT_KEEPALIVE_COUNT 5
105 static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
106 module_param(keepalive_count, int, 0644);
107 MODULE_PARM_DESC(keepalive_count, "# missed probes == dead");
108
109 static int keepalive_intvl = 5;
110 module_param(keepalive_intvl, int, 0644);
111 MODULE_PARM_DESC(keepalive_intvl, "seconds between probes");
112
113 static int enable_csum;
114 module_param(enable_csum, int, 0644);
115 MODULE_PARM_DESC(enable_csum, "enable check sum");
116
117 static int inject_csum_error;
118 module_param(inject_csum_error, int, 0644);
119 MODULE_PARM_DESC(inject_csum_error, "set non-zero to inject a checksum error");
120
121 static int nonblk_zcack = 1;
122 module_param(nonblk_zcack, int, 0644);
123 MODULE_PARM_DESC(nonblk_zcack, "always send ZC-ACK on non-blocking connection");
124
125 static unsigned int zc_min_payload = 16 << 10;
126 module_param(zc_min_payload, int, 0644);
127 MODULE_PARM_DESC(zc_min_payload, "minimum payload size to zero copy");
128
129 static unsigned int zc_recv;
130 module_param(zc_recv, int, 0644);
131 MODULE_PARM_DESC(zc_recv, "enable ZC recv for Chelsio driver");
132
133 static unsigned int zc_recv_min_nfrags = 16;
134 module_param(zc_recv_min_nfrags, int, 0644);
135 MODULE_PARM_DESC(zc_recv_min_nfrags, "minimum # of fragments to enable ZC recv");
136
137
138 #if SOCKNAL_VERSION_DEBUG
139 static int protocol = 3;
140 module_param(protocol, int, 0644);
141 MODULE_PARM_DESC(protocol, "protocol version");
142 #endif
143
144 ksock_tunables_t ksocknal_tunables;
145
ksocknal_tunables_init(void)146 int ksocknal_tunables_init(void)
147 {
148
149 /* initialize ksocknal_tunables structure */
150 ksocknal_tunables.ksnd_timeout = &sock_timeout;
151 ksocknal_tunables.ksnd_nscheds = &nscheds;
152 ksocknal_tunables.ksnd_nconnds = &nconnds;
153 ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
154 ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
155 ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
156 ksocknal_tunables.ksnd_eager_ack = &eager_ack;
157 ksocknal_tunables.ksnd_typed_conns = &typed_conns;
158 ksocknal_tunables.ksnd_min_bulk = &min_bulk;
159 ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
160 ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
161 ksocknal_tunables.ksnd_nagle = &nagle;
162 ksocknal_tunables.ksnd_round_robin = &round_robin;
163 ksocknal_tunables.ksnd_keepalive = &keepalive;
164 ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
165 ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
166 ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
167 ksocknal_tunables.ksnd_credits = &credits;
168 ksocknal_tunables.ksnd_peertxcredits = &peer_credits;
169 ksocknal_tunables.ksnd_peerrtrcredits = &peer_buffer_credits;
170 ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
171 ksocknal_tunables.ksnd_enable_csum = &enable_csum;
172 ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
173 ksocknal_tunables.ksnd_nonblk_zcack = &nonblk_zcack;
174 ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
175 ksocknal_tunables.ksnd_zc_recv = &zc_recv;
176 ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
177
178
179
180 #if SOCKNAL_VERSION_DEBUG
181 ksocknal_tunables.ksnd_protocol = &protocol;
182 #endif
183
184 if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
185 *ksocknal_tunables.ksnd_zc_min_payload = 2 << 10;
186
187 return 0;
188 };
189