| /* |
| * 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[] = { |
| { |
| .ctl_name = CTL_UNNUMBERED, |
| .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, |
| }, |
| { |
| .ctl_name = CTL_UNNUMBERED, |
| .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, |
| }, |
| { |
| .ctl_name = CTL_UNNUMBERED, |
| .procname = "max_unacked_packets", |
| .data = &rds_sysctl_max_unacked_packets, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = CTL_UNNUMBERED, |
| .procname = "max_unacked_bytes", |
| .data = &rds_sysctl_max_unacked_bytes, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = CTL_UNNUMBERED, |
| .procname = "ping_enable", |
| .data = &rds_sysctl_ping_enable, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { .ctl_name = 0} |
| }; |
| |
| static struct ctl_path rds_sysctl_path[] = { |
| { .procname = "net", .ctl_name = CTL_NET, }, |
| { .procname = "rds", .ctl_name = CTL_UNNUMBERED, }, |
| { } |
| }; |
| |
| |
| void rds_sysctl_exit(void) |
| { |
| if (rds_sysctl_reg_table) |
| unregister_sysctl_table(rds_sysctl_reg_table); |
| } |
| |
| int __init 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 == NULL) |
| return -ENOMEM; |
| return 0; |
| } |