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