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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) 2011, 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/vfs.h>
#include "../include/obd_class.h"
#include "../include/lprocfs_status.h"
static int mdc_max_rpcs_in_flight_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = m->private;
struct client_obd *cli = &dev->u.cli;
int rc;
client_obd_list_lock(&cli->cl_loi_list_lock);
rc = seq_printf(m, "%u\n", cli->cl_max_rpcs_in_flight);
client_obd_list_unlock(&cli->cl_loi_list_lock);
return rc;
}
static ssize_t mdc_max_rpcs_in_flight_seq_write(struct file *file,
const char *buffer,
size_t count,
loff_t *off)
{
struct obd_device *dev =
((struct seq_file *)file->private_data)->private;
struct client_obd *cli = &dev->u.cli;
int val, rc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
if (val < 1 || val > MDC_MAX_RIF_MAX)
return -ERANGE;
client_obd_list_lock(&cli->cl_loi_list_lock);
cli->cl_max_rpcs_in_flight = val;
client_obd_list_unlock(&cli->cl_loi_list_lock);
return count;
}
LPROC_SEQ_FOPS(mdc_max_rpcs_in_flight);
static int mdc_kuc_open(struct inode *inode, struct file *file)
{
return single_open(file, NULL, PDE_DATA(inode));
}
/* temporary for testing */
static ssize_t mdc_kuc_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
{
struct obd_device *obd =
((struct seq_file *)file->private_data)->private;
struct kuc_hdr *lh;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
int len;
int fd, rc;
rc = lprocfs_write_helper(buffer, count, &fd);
if (rc)
return rc;
if (fd < 0)
return -ERANGE;
CWARN("message to fd %d\n", fd);
len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
/* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
OBD_ALLOC(lh, len);
lh->kuc_magic = KUC_MAGIC;
lh->kuc_transport = KUC_TRANSPORT_HSM;
lh->kuc_msgtype = HMT_ACTION_LIST;
lh->kuc_msglen = len;
hal = (struct hsm_action_list *)(lh + 1);
hal->hal_version = HAL_VERSION;
hal->hal_archive_id = 1;
hal->hal_flags = 0;
obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
/* mock up an action list */
hal->hal_count = 2;
hai = hai_zero(hal);
hai->hai_action = HSMA_ARCHIVE;
hai->hai_fid.f_oid = 5;
hai->hai_len = sizeof(*hai);
hai = hai_next(hai);
hai->hai_action = HSMA_RESTORE;
hai->hai_fid.f_oid = 10;
hai->hai_len = sizeof(*hai);
/* This works for either broadcast or unicast to a single fd */
if (fd == 0) {
rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
} else {
struct file *fp = fget(fd);
rc = libcfs_kkuc_msg_put(fp, lh);
fput(fp);
}
OBD_FREE(lh, len);
if (rc < 0)
return rc;
return count;
}
struct file_operations mdc_kuc_fops = {
.open = mdc_kuc_open,
.write = mdc_kuc_write,
.release = single_release,
};
LPROC_SEQ_FOPS_WR_ONLY(mdc, ping);
LPROC_SEQ_FOPS_RO_TYPE(mdc, uuid);
LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
LPROC_SEQ_FOPS_RO_TYPE(mdc, blksize);
LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytestotal);
LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesfree);
LPROC_SEQ_FOPS_RO_TYPE(mdc, kbytesavail);
LPROC_SEQ_FOPS_RO_TYPE(mdc, filestotal);
LPROC_SEQ_FOPS_RO_TYPE(mdc, filesfree);
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);
static int mdc_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *v)
{
return lprocfs_obd_rd_max_pages_per_rpc(m, m->private);
}
LPROC_SEQ_FOPS_RO(mdc_obd_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[] = {
{ "uuid", &mdc_uuid_fops, NULL, 0 },
{ "ping", &mdc_ping_fops, NULL, 0222 },
{ "connect_flags", &mdc_connect_flags_fops, NULL, 0 },
{ "blocksize", &mdc_blksize_fops, NULL, 0 },
{ "kbytestotal", &mdc_kbytestotal_fops, NULL, 0 },
{ "kbytesfree", &mdc_kbytesfree_fops, NULL, 0 },
{ "kbytesavail", &mdc_kbytesavail_fops, NULL, 0 },
{ "filestotal", &mdc_filestotal_fops, NULL, 0 },
{ "filesfree", &mdc_filesfree_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 },
/*
* FIXME: below proc entry is provided, but not in used, instead
* sbi->sb_md_brw_size is used, the per obd variable should be used
* when CMD is enabled, and dir pages are managed in MDC layer.
* Remember to enable proc write function.
*/
{ "max_pages_per_rpc", &mdc_obd_max_pages_per_rpc_fops, NULL, 0 },
{ "max_rpcs_in_flight", &mdc_max_rpcs_in_flight_fops, NULL, 0 },
{ "timeouts", &mdc_timeouts_fops, NULL, 0 },
{ "import", &mdc_import_fops, NULL, 0 },
{ "state", &mdc_state_fops, NULL, 0 },
{ "hsm_nl", &mdc_kuc_fops, NULL, 0200 },
{ "pinger_recov", &mdc_pinger_recov_fops, NULL, 0 },
{ NULL }
};
LPROC_SEQ_FOPS_RO_TYPE(mdc, numrefs);
static struct lprocfs_vars lprocfs_mdc_module_vars[] = {
{ "num_refs", &mdc_numrefs_fops, NULL, 0 },
{ NULL }
};
void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars)
{
lvars->module_vars = lprocfs_mdc_module_vars;
lvars->obd_vars = lprocfs_mdc_obd_vars;
}
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