2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
4 * Copyright (c) 2011, 2012, Intel Corporation.
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 module_param(sock_timeout
, int, 0644);
26 MODULE_PARM_DESC(sock_timeout
, "dead socket timeout (seconds)");
28 static int credits
= 256;
29 module_param(credits
, int, 0444);
30 MODULE_PARM_DESC(credits
, "# concurrent sends");
32 static int peer_credits
= 8;
33 module_param(peer_credits
, int, 0444);
34 MODULE_PARM_DESC(peer_credits
, "# concurrent sends to 1 peer");
36 static int peer_buffer_credits
= 0;
37 module_param(peer_buffer_credits
, int, 0444);
38 MODULE_PARM_DESC(peer_buffer_credits
, "# per-peer router buffer credits");
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)");
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");
50 static int nconnds
= 4;
51 module_param(nconnds
, int, 0444);
52 MODULE_PARM_DESC(nconnds
, "# connection daemons while starting");
54 static int nconnds_max
= 64;
55 module_param(nconnds_max
, int, 0444);
56 MODULE_PARM_DESC(nconnds_max
, "max # connection daemons");
58 static int min_reconnectms
= 1000;
59 module_param(min_reconnectms
, int, 0644);
60 MODULE_PARM_DESC(min_reconnectms
, "min connection retry interval (mS)");
62 static int max_reconnectms
= 60000;
63 module_param(max_reconnectms
, int, 0644);
64 MODULE_PARM_DESC(max_reconnectms
, "max connection retry interval (mS)");
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");
71 static int typed_conns
= 1;
72 module_param(typed_conns
, int, 0444);
73 MODULE_PARM_DESC(typed_conns
, "use different sockets for bulk");
75 static int min_bulk
= (1<<10);
76 module_param(min_bulk
, int, 0644);
77 MODULE_PARM_DESC(min_bulk
, "smallest 'large' message");
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)");
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)");
89 module_param(nagle
, int, 0644);
90 MODULE_PARM_DESC(nagle
, "enable NAGLE?");
92 static int round_robin
= 1;
93 module_param(round_robin
, int, 0644);
94 MODULE_PARM_DESC(round_robin
, "Round robin for multiple interfaces");
96 static int keepalive
= 30;
97 module_param(keepalive
, int, 0644);
98 MODULE_PARM_DESC(keepalive
, "# seconds before send keepalive");
100 static int keepalive_idle
= 30;
101 module_param(keepalive_idle
, int, 0644);
102 MODULE_PARM_DESC(keepalive_idle
, "# idle seconds before probe");
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");
109 static int keepalive_intvl
= 5;
110 module_param(keepalive_intvl
, int, 0644);
111 MODULE_PARM_DESC(keepalive_intvl
, "seconds between probes");
113 static int enable_csum
= 0;
114 module_param(enable_csum
, int, 0644);
115 MODULE_PARM_DESC(enable_csum
, "enable check sum");
117 static int inject_csum_error
= 0;
118 module_param(inject_csum_error
, int, 0644);
119 MODULE_PARM_DESC(inject_csum_error
, "set non-zero to inject a checksum error");
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");
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");
129 static unsigned int zc_recv
= 0;
130 module_param(zc_recv
, int, 0644);
131 MODULE_PARM_DESC(zc_recv
, "enable ZC recv for Chelsio driver");
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");
138 #if SOCKNAL_VERSION_DEBUG
139 static int protocol
= 3;
140 module_param(protocol
, int, 0644);
141 MODULE_PARM_DESC(protocol
, "protocol version");
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_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
;
180 #if SOCKNAL_VERSION_DEBUG
181 ksocknal_tunables
.ksnd_protocol
= &protocol
;
184 if (*ksocknal_tunables
.ksnd_zc_min_payload
< (2 << 10))
185 *ksocknal_tunables
.ksnd_zc_min_payload
= (2 << 10);