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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.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012, 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/statfs.h>
#include "../include/lprocfs_status.h"
#include "../include/obd_class.h"
#include <linux/seq_file.h>
#include "lov_internal.h"
static int lov_stripesize_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
return 0;
}
static ssize_t lov_stripesize_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
__u64 val;
int rc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
lov_fix_desc_stripe_size(&val);
desc->ld_default_stripe_size = val;
return count;
}
LPROC_SEQ_FOPS(lov_stripesize);
static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
return 0;
}
static ssize_t lov_stripeoffset_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
__u64 val;
int rc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
desc->ld_default_stripe_offset = val;
return count;
}
LPROC_SEQ_FOPS(lov_stripeoffset);
static int lov_stripetype_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%u\n", desc->ld_pattern);
return 0;
}
static ssize_t lov_stripetype_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
int val, rc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
lov_fix_desc_pattern(&val);
desc->ld_pattern = val;
return count;
}
LPROC_SEQ_FOPS(lov_stripetype);
static int lov_stripecount_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1);
return 0;
}
static ssize_t lov_stripecount_seq_write(struct file *file,
const char __user *buffer,
size_t count, loff_t *off)
{
struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
struct lov_desc *desc;
int val, rc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
lov_fix_desc_stripe_count(&val);
desc->ld_default_stripe_count = val;
return count;
}
LPROC_SEQ_FOPS(lov_stripecount);
static int lov_numobd_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%u\n", desc->ld_tgt_count);
return 0;
}
LPROC_SEQ_FOPS_RO(lov_numobd);
static int lov_activeobd_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_desc *desc;
LASSERT(dev != NULL);
desc = &dev->u.lov.desc;
seq_printf(m, "%u\n", desc->ld_active_tgt_count);
return 0;
}
LPROC_SEQ_FOPS_RO(lov_activeobd);
static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lov_obd *lov;
LASSERT(dev != NULL);
lov = &dev->u.lov;
seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
return 0;
}
LPROC_SEQ_FOPS_RO(lov_desc_uuid);
static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
{
struct obd_device *dev = p->private;
struct lov_obd *lov = &dev->u.lov;
while (*pos < lov->desc.ld_tgt_count) {
if (lov->lov_tgts[*pos])
return lov->lov_tgts[*pos];
++*pos;
}
return NULL;
}
static void lov_tgt_seq_stop(struct seq_file *p, void *v)
{
}
static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
{
struct obd_device *dev = p->private;
struct lov_obd *lov = &dev->u.lov;
while (++*pos < lov->desc.ld_tgt_count) {
if (lov->lov_tgts[*pos])
return lov->lov_tgts[*pos];
}
return NULL;
}
static int lov_tgt_seq_show(struct seq_file *p, void *v)
{
struct lov_tgt_desc *tgt = v;
seq_printf(p, "%d: %s %sACTIVE\n",
tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid),
tgt->ltd_active ? "" : "IN");
return 0;
}
static const struct seq_operations lov_tgt_sops = {
.start = lov_tgt_seq_start,
.stop = lov_tgt_seq_stop,
.next = lov_tgt_seq_next,
.show = lov_tgt_seq_show,
};
static int lov_target_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc;
rc = seq_open(file, &lov_tgt_sops);
if (rc)
return rc;
seq = file->private_data;
seq->private = PDE_DATA(inode);
return 0;
}
LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
static struct lprocfs_vars lprocfs_lov_obd_vars[] = {
{ "uuid", &lov_uuid_fops, NULL, 0 },
{ "stripesize", &lov_stripesize_fops, NULL },
{ "stripeoffset", &lov_stripeoffset_fops, NULL },
{ "stripecount", &lov_stripecount_fops, NULL },
{ "stripetype", &lov_stripetype_fops, NULL },
{ "numobd", &lov_numobd_fops, NULL, 0 },
{ "activeobd", &lov_activeobd_fops, NULL, 0 },
{ "filestotal", &lov_filestotal_fops, NULL, 0 },
{ "filesfree", &lov_filesfree_fops, NULL, 0 },
/*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/
{ "blocksize", &lov_blksize_fops, NULL, 0 },
{ "kbytestotal", &lov_kbytestotal_fops, NULL, 0 },
{ "kbytesfree", &lov_kbytesfree_fops, NULL, 0 },
{ "kbytesavail", &lov_kbytesavail_fops, NULL, 0 },
{ "desc_uuid", &lov_desc_uuid_fops, NULL, 0 },
{ NULL }
};
void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars)
{
lvars->obd_vars = lprocfs_lov_obd_vars;
}
const struct file_operations lov_proc_target_fops = {
.owner = THIS_MODULE,
.open = lov_target_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = lprocfs_seq_release,
};
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