4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_CLASS
38 #include <linux/version.h>
39 #include <asm/statfs.h>
40 #include <lprocfs_status.h>
41 #include <obd_class.h>
42 #include <lustre_param.h>
43 #include "lov_internal.h"
46 static int lov_stripesize_seq_show(struct seq_file *m, void *v)
48 struct obd_device *dev = (struct obd_device *)m->private;
49 struct lov_desc *desc;
52 desc = &dev->u.lov.desc;
54 return seq_printf(m, LPU64"\n", desc->ld_default_stripe_size);
57 static ssize_t lov_stripesize_seq_write(struct file *file, const char *buffer,
58 size_t count, loff_t *off)
60 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
61 struct lov_desc *desc;
66 desc = &dev->u.lov.desc;
67 rc = lprocfs_write_u64_helper(buffer, count, &val);
71 lov_fix_desc_stripe_size(&val);
72 desc->ld_default_stripe_size = val;
75 LPROC_SEQ_FOPS(lov_stripesize);
77 static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
79 struct obd_device *dev = (struct obd_device *)m->private;
80 struct lov_desc *desc;
83 desc = &dev->u.lov.desc;
84 return seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
87 static ssize_t lov_stripeoffset_seq_write(struct file *file, const char *buffer,
88 size_t count, loff_t *off)
90 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
91 struct lov_desc *desc;
96 desc = &dev->u.lov.desc;
97 rc = lprocfs_write_u64_helper(buffer, count, &val);
101 desc->ld_default_stripe_offset = val;
104 LPROC_SEQ_FOPS(lov_stripeoffset);
106 static int lov_stripetype_seq_show(struct seq_file *m, void *v)
108 struct obd_device* dev = (struct obd_device*)m->private;
109 struct lov_desc *desc;
111 LASSERT(dev != NULL);
112 desc = &dev->u.lov.desc;
113 return seq_printf(m, "%u\n", desc->ld_pattern);
116 static ssize_t lov_stripetype_seq_write(struct file *file, const char *buffer,
117 size_t count, loff_t *off)
119 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
120 struct lov_desc *desc;
123 LASSERT(dev != NULL);
124 desc = &dev->u.lov.desc;
125 rc = lprocfs_write_helper(buffer, count, &val);
129 lov_fix_desc_pattern(&val);
130 desc->ld_pattern = val;
133 LPROC_SEQ_FOPS(lov_stripetype);
135 static int lov_stripecount_seq_show(struct seq_file *m, void *v)
137 struct obd_device *dev = (struct obd_device *)m->private;
138 struct lov_desc *desc;
140 LASSERT(dev != NULL);
141 desc = &dev->u.lov.desc;
142 return seq_printf(m, "%d\n",
143 (__s16)(desc->ld_default_stripe_count + 1) - 1);
146 static ssize_t lov_stripecount_seq_write(struct file *file, const char *buffer,
147 size_t count, loff_t *off)
149 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
150 struct lov_desc *desc;
153 LASSERT(dev != NULL);
154 desc = &dev->u.lov.desc;
155 rc = lprocfs_write_helper(buffer, count, &val);
159 lov_fix_desc_stripe_count(&val);
160 desc->ld_default_stripe_count = val;
163 LPROC_SEQ_FOPS(lov_stripecount);
165 static int lov_numobd_seq_show(struct seq_file *m, void *v)
167 struct obd_device *dev = (struct obd_device*)m->private;
168 struct lov_desc *desc;
170 LASSERT(dev != NULL);
171 desc = &dev->u.lov.desc;
172 return seq_printf(m, "%u\n", desc->ld_tgt_count);
174 LPROC_SEQ_FOPS_RO(lov_numobd);
176 static int lov_activeobd_seq_show(struct seq_file *m, void *v)
178 struct obd_device* dev = (struct obd_device*)m->private;
179 struct lov_desc *desc;
181 LASSERT(dev != NULL);
182 desc = &dev->u.lov.desc;
183 return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
185 LPROC_SEQ_FOPS_RO(lov_activeobd);
187 static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
189 struct obd_device *dev = m->private;
192 LASSERT(dev != NULL);
194 return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
196 LPROC_SEQ_FOPS_RO(lov_desc_uuid);
198 static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
200 struct obd_device *dev = p->private;
201 struct lov_obd *lov = &dev->u.lov;
203 while (*pos < lov->desc.ld_tgt_count) {
204 if (lov->lov_tgts[*pos])
205 return lov->lov_tgts[*pos];
211 static void lov_tgt_seq_stop(struct seq_file *p, void *v)
215 static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
217 struct obd_device *dev = p->private;
218 struct lov_obd *lov = &dev->u.lov;
220 while (++*pos < lov->desc.ld_tgt_count) {
221 if (lov->lov_tgts[*pos])
222 return lov->lov_tgts[*pos];
227 static int lov_tgt_seq_show(struct seq_file *p, void *v)
229 struct lov_tgt_desc *tgt = v;
230 return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
231 obd_uuid2str(&tgt->ltd_uuid),
232 tgt->ltd_active ? "" : "IN");
235 struct seq_operations lov_tgt_sops = {
236 .start = lov_tgt_seq_start,
237 .stop = lov_tgt_seq_stop,
238 .next = lov_tgt_seq_next,
239 .show = lov_tgt_seq_show,
242 static int lov_target_seq_open(struct inode *inode, struct file *file)
244 struct seq_file *seq;
247 LPROCFS_ENTRY_CHECK(PDE(inode));
248 rc = seq_open(file, &lov_tgt_sops);
252 seq = file->private_data;
253 seq->private = PDE_DATA(inode);
257 LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
258 LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
259 LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
260 LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
261 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
262 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
263 LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
265 struct lprocfs_seq_vars lprocfs_lov_obd_vars[] = {
267 .fops = &lov_uuid_fops },
268 { .name = "stripesize",
269 .fops = &lov_stripesize_fops },
270 { .name = "stripeoffset",
271 .fops = &lov_stripeoffset_fops },
272 { .name = "stripecount",
273 .fops = &lov_stripecount_fops },
274 { .name = "stripetype",
275 .fops = &lov_stripetype_fops },
277 .fops = &lov_numobd_fops },
278 { .name = "activeobd",
279 .fops = &lov_activeobd_fops },
280 { .name = "filestotal",
281 .fops = &lov_filestotal_fops },
282 { .name = "filesfree",
283 .fops = &lov_filesfree_fops },
284 { .name = "blocksize",
285 .fops = &lov_blksize_fops },
286 { .name = "kbytestotal",
287 .fops = &lov_kbytestotal_fops },
288 { .name = "kbytesfree",
289 .fops = &lov_kbytesfree_fops },
290 { .name = "kbytesavail",
291 .fops = &lov_kbytesavail_fops },
292 { .name = "desc_uuid",
293 .fops = &lov_desc_uuid_fops },
297 struct file_operations lov_proc_target_fops = {
298 .owner = THIS_MODULE,
299 .open = lov_target_seq_open,
302 .release = lprocfs_seq_release,