-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License 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).
*
- * Lustre 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 for more details.
+ * 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
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2017, 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/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-#include <asm/statfs.h>
-#endif
-#include <linux/lprocfs_status.h>
-#include <linux/obd_class.h>
#include <linux/seq_file.h>
+#include <linux/statfs.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+
+#include "lmv_internal.h"
+
+static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n", obd->u.lmv.lmv_mdt_count);
+}
+LUSTRE_RO_ATTR(numobd);
+
+static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count);
+}
+LUSTRE_RO_ATTR(activeobd);
+
+static ssize_t desc_uuid_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%s\n",
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_uuid.uuid);
+}
+LUSTRE_RO_ATTR(desc_uuid);
+
+static ssize_t qos_maxage_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage);
+}
+
+static ssize_t qos_maxage_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 0, &val);
+ if (rc)
+ return rc;
+
+ obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage = val;
+
+ return count;
+}
+LUSTRE_RW_ATTR(qos_maxage);
+
+static ssize_t qos_prio_free_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%u%%\n",
+ (obd->u.lmv.lmv_qos.lq_prio_free * 100 + 255) >> 8);
+}
+
+static ssize_t qos_prio_free_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 0, &val);
+ if (rc)
+ return rc;
+
+ if (val > 100)
+ return -EINVAL;
+
+ lmv->lmv_qos.lq_prio_free = (val << 8) / 100;
+ lmv->lmv_qos.lq_dirty = 1;
+ lmv->lmv_qos.lq_reset = 1;
+
+ return count;
+}
+LUSTRE_RW_ATTR(qos_prio_free);
+
+static ssize_t qos_threshold_rr_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+
+ return scnprintf(buf, PAGE_SIZE, "%u%%\n",
+ (obd->u.lmv.lmv_qos.lq_threshold_rr * 100 + 255) >> 8);
+}
+
+static ssize_t qos_threshold_rr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer,
+ size_t count)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct lmv_obd *lmv = &obd->u.lmv;
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 0, &val);
+ if (rc)
+ return rc;
+
+ if (val > 100)
+ return -EINVAL;
+
+ lmv->lmv_qos.lq_threshold_rr = (val << 8) / 100;
+ lmv->lmv_qos.lq_dirty = 1;
+
+ return count;
+}
+LUSTRE_RW_ATTR(qos_threshold_rr);
+
+#ifdef CONFIG_PROC_FS
+static void *lmv_tgt_seq_start(struct seq_file *p, loff_t *pos)
+{
+ struct obd_device *obd = p->private;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt;
+
+ while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) {
+ tgt = lmv_tgt(lmv, (__u32)*pos);
+ if (tgt)
+ return tgt;
+
+ ++*pos;
+ }
+
+ return NULL;
+}
+
+static void lmv_tgt_seq_stop(struct seq_file *p, void *v)
+{
+}
+
+static void *lmv_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+ struct obd_device *obd = p->private;
+ struct lmv_obd *lmv = &obd->u.lmv;
+ struct lu_tgt_desc *tgt;
+
+ ++*pos;
+ while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) {
+ tgt = lmv_tgt(lmv, (__u32)*pos);
+ if (tgt)
+ return tgt;
+
+ ++*pos;
+ }
+
+ return NULL;
+}
+
+static int lmv_tgt_seq_show(struct seq_file *p, void *v)
+{
+ struct lmv_tgt_desc *tgt = v;
+
+ if (!tgt)
+ return 0;
+
+ seq_printf(p, "%u: %s %sACTIVE\n",
+ tgt->ltd_index, tgt->ltd_uuid.uuid,
+ tgt->ltd_active ? "" : "IN");
+ return 0;
+}
+
+static const struct seq_operations lmv_tgt_sops = {
+ .start = lmv_tgt_seq_start,
+ .stop = lmv_tgt_seq_stop,
+ .next = lmv_tgt_seq_next,
+ .show = lmv_tgt_seq_show,
+};
+
+static int lmv_target_seq_open(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq;
+ int rc;
+
+ rc = seq_open(file, &lmv_tgt_sops);
+ if (rc)
+ return rc;
+
+ seq = file->private_data;
+ seq->private = PDE_DATA(inode);
+ return 0;
+}
+
+static const struct file_operations lmv_proc_target_fops = {
+ .owner = THIS_MODULE,
+ .open = lmv_target_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+#endif /* CONFIG_PROC_FS */
+
+static struct attribute *lmv_attrs[] = {
+ &lustre_attr_activeobd.attr,
+ &lustre_attr_desc_uuid.attr,
+ &lustre_attr_numobd.attr,
+ &lustre_attr_qos_maxage.attr,
+ &lustre_attr_qos_prio_free.attr,
+ &lustre_attr_qos_threshold_rr.attr,
+ NULL,
+};
+
+int lmv_tunables_init(struct obd_device *obd)
+{
+ int rc;
-#ifndef LPROCFS
-static struct lprocfs_vars lprocfs_module_vars[] = { {0} };
-static struct lprocfs_vars lprocfs_obd_vars[] = { {0} };
-#else
-/* FIXME: here should be definition of lprocfs_module_vars and
- lprocfs_obd_vars. */
-static struct lprocfs_vars lprocfs_module_vars[] = { {0} };
-static struct lprocfs_vars lprocfs_obd_vars[] = { {0} };
-#endif
-LPROCFS_INIT_VARS(lmv, lprocfs_module_vars, lprocfs_obd_vars)
+ obd->obd_ktype.default_attrs = lmv_attrs;
+ rc = lprocfs_obd_setup(obd, true);
+ if (rc)
+ goto out_failed;
+#ifdef CONFIG_PROC_FS
+ rc = lprocfs_alloc_md_stats(obd, 0);
+ if (rc) {
+ lprocfs_obd_cleanup(obd);
+ goto out_failed;
+ }
+ rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd",
+ 0444, &lmv_proc_target_fops, obd);
+ if (rc) {
+ lprocfs_free_md_stats(obd);
+ lprocfs_obd_cleanup(obd);
+ CWARN("%s: error adding LMV target_obd file: rc = %d\n",
+ obd->obd_name, rc);
+ rc = 0;
+ }
+#endif /* CONFIG_PROC_FS */
+out_failed:
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff