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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program 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 version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_CLASS
#include <linux/vfs.h>
#include "../include/obd_class.h"
#include "../include/lprocfs_status.h"
#include "mdc_internal.h"
static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
int len;
struct obd_device *dev = container_of(kobj, struct obd_device,
obd_kobj);
struct client_obd *cli = &dev->u.cli;
spin_lock(&cli->cl_loi_list_lock);
len = sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight);
spin_unlock(&cli->cl_loi_list_lock);
return len;
}
static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
struct obd_device *dev = container_of(kobj, struct obd_device,
obd_kobj);
struct client_obd *cli = &dev->u.cli;
int rc;
unsigned long val;
rc = kstrtoul(buffer, 10, &val);
if (rc)
return rc;
if (val < 1 || val > MDC_MAX_RIF_MAX)
return -ERANGE;
spin_lock(&cli->cl_loi_list_lock);
cli->cl_max_rpcs_in_flight = val;
spin_unlock(&cli->cl_loi_list_lock);
return count;
}
LUSTRE_RW_ATTR(max_rpcs_in_flight);
LPROC_SEQ_FOPS_WR_ONLY(mdc, ping);
LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid);
LPROC_SEQ_FOPS_RO_TYPE(mdc, conn_uuid);
LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts);
LPROC_SEQ_FOPS_RO_TYPE(mdc, state);
/*
* Note: below sysfs entry is provided, but not currently in use, instead
* sbi->sb_md_brw_size is used, the per obd variable should be used
* when DNE is enabled, and dir pages are managed in MDC layer.
* Don't forget to enable sysfs store function then.
*/
static ssize_t max_pages_per_rpc_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *dev = container_of(kobj, struct obd_device,
obd_kobj);
struct client_obd *cli = &dev->u.cli;
return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc);
}
LUSTRE_RO_ATTR(max_pages_per_rpc);
LPROC_SEQ_FOPS_RW_TYPE(mdc, import);
LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov);
static struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
{ "ping", &mdc_ping_fops, NULL, 0222 },
{ "connect_flags", &mdc_connect_flags_fops, NULL, 0 },
/*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/
{ "mds_server_uuid", &mdc_server_uuid_fops, NULL, 0 },
{ "mds_conn_uuid", &mdc_conn_uuid_fops, NULL, 0 },
{ "timeouts", &mdc_timeouts_fops, NULL, 0 },
{ "import", &mdc_import_fops, NULL, 0 },
{ "state", &mdc_state_fops, NULL, 0 },
{ "pinger_recov", &mdc_pinger_recov_fops, NULL, 0 },
{ NULL }
};
static struct attribute *mdc_attrs[] = {
&lustre_attr_max_rpcs_in_flight.attr,
&lustre_attr_max_pages_per_rpc.attr,
NULL,
};
static struct attribute_group mdc_attr_group = {
.attrs = mdc_attrs,
};
void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars)
{
lvars->sysfs_vars = &mdc_attr_group;
lvars->obd_vars = lprocfs_mdc_obd_vars;
}
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