/*
* 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 = ~0 UL;
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 ;
}
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(vorverarbeitet am 2026-10-11)
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