138 строки
4.5 KiB
C
138 строки
4.5 KiB
C
/*
|
|
* 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 "iw.h"
|
|
|
|
static struct ctl_table_header *rds_iw_sysctl_hdr;
|
|
|
|
unsigned long rds_iw_sysctl_max_send_wr = RDS_IW_DEFAULT_SEND_WR;
|
|
unsigned long rds_iw_sysctl_max_recv_wr = RDS_IW_DEFAULT_RECV_WR;
|
|
unsigned long rds_iw_sysctl_max_recv_allocation = (128 * 1024 * 1024) / RDS_FRAG_SIZE;
|
|
static unsigned long rds_iw_sysctl_max_wr_min = 1;
|
|
/* hardware will fail CQ creation long before this */
|
|
static unsigned long rds_iw_sysctl_max_wr_max = (u32)~0;
|
|
|
|
unsigned long rds_iw_sysctl_max_unsig_wrs = 16;
|
|
static unsigned long rds_iw_sysctl_max_unsig_wr_min = 1;
|
|
static unsigned long rds_iw_sysctl_max_unsig_wr_max = 64;
|
|
|
|
unsigned long rds_iw_sysctl_max_unsig_bytes = (16 << 20);
|
|
static unsigned long rds_iw_sysctl_max_unsig_bytes_min = 1;
|
|
static unsigned long rds_iw_sysctl_max_unsig_bytes_max = ~0UL;
|
|
|
|
unsigned int rds_iw_sysctl_flow_control = 1;
|
|
|
|
ctl_table rds_iw_sysctl_table[] = {
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "max_send_wr",
|
|
.data = &rds_iw_sysctl_max_send_wr,
|
|
.maxlen = sizeof(unsigned long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_minmax,
|
|
.extra1 = &rds_iw_sysctl_max_wr_min,
|
|
.extra2 = &rds_iw_sysctl_max_wr_max,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "max_recv_wr",
|
|
.data = &rds_iw_sysctl_max_recv_wr,
|
|
.maxlen = sizeof(unsigned long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_minmax,
|
|
.extra1 = &rds_iw_sysctl_max_wr_min,
|
|
.extra2 = &rds_iw_sysctl_max_wr_max,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "max_unsignaled_wr",
|
|
.data = &rds_iw_sysctl_max_unsig_wrs,
|
|
.maxlen = sizeof(unsigned long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_minmax,
|
|
.extra1 = &rds_iw_sysctl_max_unsig_wr_min,
|
|
.extra2 = &rds_iw_sysctl_max_unsig_wr_max,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "max_unsignaled_bytes",
|
|
.data = &rds_iw_sysctl_max_unsig_bytes,
|
|
.maxlen = sizeof(unsigned long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_minmax,
|
|
.extra1 = &rds_iw_sysctl_max_unsig_bytes_min,
|
|
.extra2 = &rds_iw_sysctl_max_unsig_bytes_max,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "max_recv_allocation",
|
|
.data = &rds_iw_sysctl_max_recv_allocation,
|
|
.maxlen = sizeof(unsigned long),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_doulongvec_minmax,
|
|
},
|
|
{
|
|
.ctl_name = CTL_UNNUMBERED,
|
|
.procname = "flow_control",
|
|
.data = &rds_iw_sysctl_flow_control,
|
|
.maxlen = sizeof(rds_iw_sysctl_flow_control),
|
|
.mode = 0644,
|
|
.proc_handler = &proc_dointvec,
|
|
},
|
|
{ .ctl_name = 0}
|
|
};
|
|
|
|
static struct ctl_path rds_iw_sysctl_path[] = {
|
|
{ .procname = "net", .ctl_name = CTL_NET, },
|
|
{ .procname = "rds", .ctl_name = CTL_UNNUMBERED, },
|
|
{ .procname = "iw", .ctl_name = CTL_UNNUMBERED, },
|
|
{ }
|
|
};
|
|
|
|
void rds_iw_sysctl_exit(void)
|
|
{
|
|
if (rds_iw_sysctl_hdr)
|
|
unregister_sysctl_table(rds_iw_sysctl_hdr);
|
|
}
|
|
|
|
int __init rds_iw_sysctl_init(void)
|
|
{
|
|
rds_iw_sysctl_hdr = register_sysctl_paths(rds_iw_sysctl_path, rds_iw_sysctl_table);
|
|
if (rds_iw_sysctl_hdr == NULL)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|