mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 13:56:53 +07:00
2f85a42964
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
273 lines
7.1 KiB
C
273 lines
7.1 KiB
C
/* SCTP kernel reference Implementation
|
|
* (C) Copyright IBM Corp. 2002, 2004
|
|
* Copyright (c) 2002 Intel Corp.
|
|
*
|
|
* This file is part of the SCTP kernel reference Implementation
|
|
*
|
|
* Sysctl related interfaces for SCTP.
|
|
*
|
|
* The SCTP reference implementation is free software;
|
|
* you can redistribute it and/or modify it under the terms of
|
|
* the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* The SCTP reference implementation is distributed in the hope that it
|
|
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
|
|
* ************************
|
|
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GNU CC; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
* Please send any bug reports or fixes you make to the
|
|
* email address(es):
|
|
* lksctp developers <lksctp-developers@lists.sourceforge.net>
|
|
*
|
|
* Or submit a bug report through the following website:
|
|
* http://www.sf.net/projects/lksctp
|
|
*
|
|
* Written or modified by:
|
|
* Mingqin Liu <liuming@us.ibm.com>
|
|
* Jon Grimm <jgrimm@us.ibm.com>
|
|
* Ardelle Fan <ardelle.fan@intel.com>
|
|
* Ryan Layer <rmlayer@us.ibm.com>
|
|
* Sridhar Samudrala <sri@us.ibm.com>
|
|
*
|
|
* Any bugs reported given to us we will try to fix... any fixes shared will
|
|
* be incorporated into the next SCTP release.
|
|
*/
|
|
|
|
#include <net/sctp/structs.h>
|
|
#include <linux/sysctl.h>
|
|
|
|
static ctl_handler sctp_sysctl_jiffies_ms;
|
|
static long rto_timer_min = 1;
|
|
static long rto_timer_max = 86400000; /* One day */
|
|
static long sack_timer_min = 1;
|
|
static long sack_timer_max = 500;
|
|
|
|
static ctl_table sctp_table[] = {
|
|
{
|
|
.ctl_name = NET_SCTP_RTO_INITIAL,
|
|
.procname = "rto_initial",
|
|
.data = &sctp_rto_initial,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_RTO_MIN,
|
|
.procname = "rto_min",
|
|
.data = &sctp_rto_min,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_RTO_MAX,
|
|
.procname = "rto_max",
|
|
.data = &sctp_rto_max,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_VALID_COOKIE_LIFE,
|
|
.procname = "valid_cookie_life",
|
|
.data = &sctp_valid_cookie_life,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_MAX_BURST,
|
|
.procname = "max_burst",
|
|
.data = &sctp_max_burst,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_ASSOCIATION_MAX_RETRANS,
|
|
.procname = "association_max_retrans",
|
|
.data = &sctp_max_retrans_association,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_SNDBUF_POLICY,
|
|
.procname = "sndbuf_policy",
|
|
.data = &sctp_sndbuf_policy,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_PATH_MAX_RETRANS,
|
|
.procname = "path_max_retrans",
|
|
.data = &sctp_max_retrans_path,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_MAX_INIT_RETRANSMITS,
|
|
.procname = "max_init_retransmits",
|
|
.data = &sctp_max_retrans_init,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_HB_INTERVAL,
|
|
.procname = "hb_interval",
|
|
.data = &sctp_hb_interval,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_PRESERVE_ENABLE,
|
|
.procname = "cookie_preserve_enable",
|
|
.data = &sctp_cookie_preserve_enable,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &rto_timer_min,
|
|
.extra2 = &rto_timer_max
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_RTO_ALPHA,
|
|
.procname = "rto_alpha_exp_divisor",
|
|
.data = &sctp_rto_alpha,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_RTO_BETA,
|
|
.procname = "rto_beta_exp_divisor",
|
|
.data = &sctp_rto_beta,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_ADDIP_ENABLE,
|
|
.procname = "addip_enable",
|
|
.data = &sctp_addip_enable,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_PRSCTP_ENABLE,
|
|
.procname = "prsctp_enable",
|
|
.data = &sctp_prsctp_enable,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec
|
|
},
|
|
{
|
|
.ctl_name = NET_SCTP_SACK_TIMEOUT,
|
|
.procname = "sack_timeout",
|
|
.data = &sctp_sack_timeout,
|
|
.maxlen = sizeof(long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_ms_jiffies_minmax,
|
|
.strategy = &sctp_sysctl_jiffies_ms,
|
|
.extra1 = &sack_timer_min,
|
|
.extra2 = &sack_timer_max,
|
|
},
|
|
{ .ctl_name = 0 }
|
|
};
|
|
|
|
static ctl_table sctp_net_table[] = {
|
|
{
|
|
.ctl_name = NET_SCTP,
|
|
.procname = "sctp",
|
|
.mode = 0555,
|
|
.child = sctp_table
|
|
},
|
|
{ .ctl_name = 0 }
|
|
};
|
|
|
|
static ctl_table sctp_root_table[] = {
|
|
{
|
|
.ctl_name = CTL_NET,
|
|
.procname = "net",
|
|
.mode = 0555,
|
|
.child = sctp_net_table
|
|
},
|
|
{ .ctl_name = 0 }
|
|
};
|
|
|
|
static struct ctl_table_header * sctp_sysctl_header;
|
|
|
|
/* Sysctl registration. */
|
|
void sctp_sysctl_register(void)
|
|
{
|
|
sctp_sysctl_header = register_sysctl_table(sctp_root_table, 0);
|
|
}
|
|
|
|
/* Sysctl deregistration. */
|
|
void sctp_sysctl_unregister(void)
|
|
{
|
|
unregister_sysctl_table(sctp_sysctl_header);
|
|
}
|
|
|
|
/* Strategy function to convert jiffies to milliseconds. */
|
|
static int sctp_sysctl_jiffies_ms(ctl_table *table, int __user *name, int nlen,
|
|
void __user *oldval, size_t __user *oldlenp,
|
|
void __user *newval, size_t newlen, void **context) {
|
|
|
|
if (oldval) {
|
|
size_t olen;
|
|
|
|
if (oldlenp) {
|
|
if (get_user(olen, oldlenp))
|
|
return -EFAULT;
|
|
|
|
if (olen != sizeof (int))
|
|
return -EINVAL;
|
|
}
|
|
if (put_user((*(int *)(table->data) * 1000) / HZ,
|
|
(int __user *)oldval) ||
|
|
(oldlenp && put_user(sizeof (int), oldlenp)))
|
|
return -EFAULT;
|
|
}
|
|
if (newval && newlen) {
|
|
int new;
|
|
|
|
if (newlen != sizeof (int))
|
|
return -EINVAL;
|
|
|
|
if (get_user(new, (int __user *)newval))
|
|
return -EFAULT;
|
|
|
|
*(int *)(table->data) = (new * HZ) / 1000;
|
|
}
|
|
return 1;
|
|
}
|