/* * 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 struct 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(int),		.mode           = 0644,		.proc_handler   = proc_dointvec,	},	{		.procname	= "max_unacked_bytes",		.data		= &rds_sysctl_max_unacked_bytes,		.maxlen         = sizeof(int),		.mode           = 0644,		.proc_handler   = proc_dointvec,	},	{		.procname	= "ping_enable",		.data		= &rds_sysctl_ping_enable,		.maxlen         = sizeof(int),		.mode           = 0644,		.proc_handler   = proc_dointvec,	},}; void rds_sysctl_exit(void){	unregister_net_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_net_sysctl(&init_net, "net/rds", rds_sysctl_rds_table);	if (!rds_sysctl_reg_table)		return -ENOMEM;	return 0;}