| /* |
| * 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" |
| #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; |
| |
| client_obd_list_lock(&cli->cl_loi_list_lock); |
| len = sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight); |
| client_obd_list_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; |
| |
| 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; |
| } |
| LUSTRE_RW_ATTR(max_rpcs_in_flight); |
| |
| static int mdc_kuc_open(struct inode *inode, struct file *file) |
| { |
| return single_open(file, NULL, inode->i_private); |
| } |
| |
| /* temporary for testing */ |
| static ssize_t mdc_kuc_write(struct file *file, |
| const char __user *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)); |
| |
| lh = kzalloc(len, GFP_NOFS); |
| if (!lh) |
| return -ENOMEM; |
| |
| 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); |
| } |
| kfree(lh); |
| if (rc < 0) |
| return rc; |
| return count; |
| } |
| |
| static 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, 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 }, |
| { "hsm_nl", &mdc_kuc_fops, NULL, 0200 }, |
| { "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; |
| } |