| /* |
| * 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; |
| } |