RDS: remove __init and __exit annotation
[linux-2.6.git] / net / rds / iw_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 "iw.h"
38
39 static struct ctl_table_header *rds_iw_sysctl_hdr;
40
41 unsigned long rds_iw_sysctl_max_send_wr = RDS_IW_DEFAULT_SEND_WR;
42 unsigned long rds_iw_sysctl_max_recv_wr = RDS_IW_DEFAULT_RECV_WR;
43 unsigned long rds_iw_sysctl_max_recv_allocation = (128 * 1024 * 1024) / RDS_FRAG_SIZE;
44 static unsigned long rds_iw_sysctl_max_wr_min = 1;
45 /* hardware will fail CQ creation long before this */
46 static unsigned long rds_iw_sysctl_max_wr_max = (u32)~0;
47
48 unsigned long rds_iw_sysctl_max_unsig_wrs = 16;
49 static unsigned long rds_iw_sysctl_max_unsig_wr_min = 1;
50 static unsigned long rds_iw_sysctl_max_unsig_wr_max = 64;
51
52 unsigned long rds_iw_sysctl_max_unsig_bytes = (16 << 20);
53 static unsigned long rds_iw_sysctl_max_unsig_bytes_min = 1;
54 static unsigned long rds_iw_sysctl_max_unsig_bytes_max = ~0UL;
55
56 unsigned int rds_iw_sysctl_flow_control = 1;
57
58 ctl_table rds_iw_sysctl_table[] = {
59         {
60                 .procname       = "max_send_wr",
61                 .data           = &rds_iw_sysctl_max_send_wr,
62                 .maxlen         = sizeof(unsigned long),
63                 .mode           = 0644,
64                 .proc_handler   = proc_doulongvec_minmax,
65                 .extra1         = &rds_iw_sysctl_max_wr_min,
66                 .extra2         = &rds_iw_sysctl_max_wr_max,
67         },
68         {
69                 .procname       = "max_recv_wr",
70                 .data           = &rds_iw_sysctl_max_recv_wr,
71                 .maxlen         = sizeof(unsigned long),
72                 .mode           = 0644,
73                 .proc_handler   = proc_doulongvec_minmax,
74                 .extra1         = &rds_iw_sysctl_max_wr_min,
75                 .extra2         = &rds_iw_sysctl_max_wr_max,
76         },
77         {
78                 .procname       = "max_unsignaled_wr",
79                 .data           = &rds_iw_sysctl_max_unsig_wrs,
80                 .maxlen         = sizeof(unsigned long),
81                 .mode           = 0644,
82                 .proc_handler   = proc_doulongvec_minmax,
83                 .extra1         = &rds_iw_sysctl_max_unsig_wr_min,
84                 .extra2         = &rds_iw_sysctl_max_unsig_wr_max,
85         },
86         {
87                 .procname       = "max_unsignaled_bytes",
88                 .data           = &rds_iw_sysctl_max_unsig_bytes,
89                 .maxlen         = sizeof(unsigned long),
90                 .mode           = 0644,
91                 .proc_handler   = proc_doulongvec_minmax,
92                 .extra1         = &rds_iw_sysctl_max_unsig_bytes_min,
93                 .extra2         = &rds_iw_sysctl_max_unsig_bytes_max,
94         },
95         {
96                 .procname       = "max_recv_allocation",
97                 .data           = &rds_iw_sysctl_max_recv_allocation,
98                 .maxlen         = sizeof(unsigned long),
99                 .mode           = 0644,
100                 .proc_handler   = proc_doulongvec_minmax,
101         },
102         {
103                 .procname       = "flow_control",
104                 .data           = &rds_iw_sysctl_flow_control,
105                 .maxlen         = sizeof(rds_iw_sysctl_flow_control),
106                 .mode           = 0644,
107                 .proc_handler   = proc_dointvec,
108         },
109         { }
110 };
111
112 static struct ctl_path rds_iw_sysctl_path[] = {
113         { .procname = "net", },
114         { .procname = "rds", },
115         { .procname = "iw", },
116         { }
117 };
118
119 void rds_iw_sysctl_exit(void)
120 {
121         if (rds_iw_sysctl_hdr)
122                 unregister_sysctl_table(rds_iw_sysctl_hdr);
123 }
124
125 int rds_iw_sysctl_init(void)
126 {
127         rds_iw_sysctl_hdr = register_sysctl_paths(rds_iw_sysctl_path, rds_iw_sysctl_table);
128         if (!rds_iw_sysctl_hdr)
129                 return -ENOMEM;
130         return 0;
131 }