bridge: Have tx_bytes count headers like rx_bytes.
[linux-2.6.git] / net / rds / sysctl.c
1 /*
2  * Copyright (c) 2006 Oracle.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  *
32  */
33 #include <linux/kernel.h>
34 #include <linux/sysctl.h>
35 #include <linux/proc_fs.h>
36
37 #include "rds.h"
38
39 static struct ctl_table_header *rds_sysctl_reg_table;
40
41 static unsigned long rds_sysctl_reconnect_min = 1;
42 static unsigned long rds_sysctl_reconnect_max = ~0UL;
43
44 unsigned long rds_sysctl_reconnect_min_jiffies;
45 unsigned long rds_sysctl_reconnect_max_jiffies = HZ;
46
47 unsigned int  rds_sysctl_max_unacked_packets = 8;
48 unsigned int  rds_sysctl_max_unacked_bytes = (16 << 20);
49
50 unsigned int rds_sysctl_ping_enable = 1;
51
52 static ctl_table rds_sysctl_rds_table[] = {
53         {
54                 .procname       = "reconnect_min_delay_ms",
55                 .data           = &rds_sysctl_reconnect_min_jiffies,
56                 .maxlen         = sizeof(unsigned long),
57                 .mode           = 0644,
58                 .proc_handler   = proc_doulongvec_ms_jiffies_minmax,
59                 .extra1         = &rds_sysctl_reconnect_min,
60                 .extra2         = &rds_sysctl_reconnect_max_jiffies,
61         },
62         {
63                 .procname       = "reconnect_max_delay_ms",
64                 .data           = &rds_sysctl_reconnect_max_jiffies,
65                 .maxlen         = sizeof(unsigned long),
66                 .mode           = 0644,
67                 .proc_handler   = proc_doulongvec_ms_jiffies_minmax,
68                 .extra1         = &rds_sysctl_reconnect_min_jiffies,
69                 .extra2         = &rds_sysctl_reconnect_max,
70         },
71         {
72                 .procname       = "max_unacked_packets",
73                 .data           = &rds_sysctl_max_unacked_packets,
74                 .maxlen         = sizeof(unsigned long),
75                 .mode           = 0644,
76                 .proc_handler   = proc_dointvec,
77         },
78         {
79                 .procname       = "max_unacked_bytes",
80                 .data           = &rds_sysctl_max_unacked_bytes,
81                 .maxlen         = sizeof(unsigned long),
82                 .mode           = 0644,
83                 .proc_handler   = proc_dointvec,
84         },
85         {
86                 .procname       = "ping_enable",
87                 .data           = &rds_sysctl_ping_enable,
88                 .maxlen         = sizeof(int),
89                 .mode           = 0644,
90                 .proc_handler   = proc_dointvec,
91         },
92         { }
93 };
94
95 static struct ctl_path rds_sysctl_path[] = {
96         { .procname = "net", },
97         { .procname = "rds", },
98         { }
99 };
100
101
102 void rds_sysctl_exit(void)
103 {
104         if (rds_sysctl_reg_table)
105                 unregister_sysctl_table(rds_sysctl_reg_table);
106 }
107
108 int rds_sysctl_init(void)
109 {
110         rds_sysctl_reconnect_min = msecs_to_jiffies(1);
111         rds_sysctl_reconnect_min_jiffies = rds_sysctl_reconnect_min;
112
113         rds_sysctl_reg_table = register_sysctl_paths(rds_sysctl_path, rds_sysctl_rds_table);
114         if (!rds_sysctl_reg_table)
115                 return -ENOMEM;
116         return 0;
117 }