1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/llog_swab.c
38 * Swabbing of llog datatypes (from disk or over the wire).
40 * Author: jacob berkman <jacob@clusterfs.com>
43 #define DEBUG_SUBSYSTEM S_LOG
46 #include <liblustre.h>
49 #include <lustre_log.h>
51 static void print_llogd_body(struct llogd_body *d)
53 CDEBUG(D_OTHER, "llogd body: %p\n", d);
54 CDEBUG(D_OTHER, "\tlgd_logid.lgl_oid: "LPX64"\n", d->lgd_logid.lgl_oid);
55 CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogr: "LPX64"\n", d->lgd_logid.lgl_ogr);
56 CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
57 CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
58 CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
59 CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
60 CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
61 CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
62 CDEBUG(D_OTHER, "\tlgd_cur_offset: "LPX64"\n", d->lgd_cur_offset);
65 void lustre_swab_llogd_body (struct llogd_body *d)
69 __swab64s (&d->lgd_logid.lgl_oid);
70 __swab64s (&d->lgd_logid.lgl_ogr);
71 __swab32s (&d->lgd_logid.lgl_ogen);
72 __swab32s (&d->lgd_ctxt_idx);
73 __swab32s (&d->lgd_llh_flags);
74 __swab32s (&d->lgd_index);
75 __swab32s (&d->lgd_saved_index);
76 __swab32s (&d->lgd_len);
77 __swab64s (&d->lgd_cur_offset);
81 EXPORT_SYMBOL(lustre_swab_llogd_body);
83 void lustre_swab_llogd_conn_body (struct llogd_conn_body *d)
85 __swab64s (&d->lgdc_gen.mnt_cnt);
86 __swab64s (&d->lgdc_gen.conn_cnt);
87 __swab64s (&d->lgdc_logid.lgl_oid);
88 __swab64s (&d->lgdc_logid.lgl_ogr);
89 __swab32s (&d->lgdc_logid.lgl_ogen);
90 __swab32s (&d->lgdc_ctxt_idx);
92 EXPORT_SYMBOL(lustre_swab_llogd_conn_body);
94 void lustre_swab_ll_fid(struct ll_fid *fid)
97 __swab32s (&fid->generation);
98 __swab32s (&fid->f_type);
100 EXPORT_SYMBOL(lustre_swab_ll_fid);
102 void lustre_swab_lu_fid(struct lu_fid *fid)
104 __swab64s (&fid->f_seq);
105 __swab32s (&fid->f_oid);
106 __swab32s (&fid->f_ver);
108 EXPORT_SYMBOL(lustre_swab_lu_fid);
110 void lustre_swab_lu_range(struct lu_range *range)
112 __swab64s (&range->lr_start);
113 __swab64s (&range->lr_end);
115 EXPORT_SYMBOL(lustre_swab_lu_range);
117 void lustre_swab_llog_rec(struct llog_rec_hdr *rec, struct llog_rec_tail *tail)
119 __swab32s(&rec->lrh_len);
120 __swab32s(&rec->lrh_index);
121 __swab32s(&rec->lrh_type);
123 switch (rec->lrh_type) {
125 struct llog_size_change_rec *lsc =
126 (struct llog_size_change_rec *)rec;
128 lustre_swab_ll_fid(&lsc->lsc_fid);
129 __swab32s(&lsc->lsc_ioepoch);
137 case MDS_UNLINK_REC: {
138 struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
140 __swab64s(&lur->lur_oid);
141 __swab32s(&lur->lur_ogen);
146 case MDS_SETATTR_REC: {
147 struct llog_setattr_rec *lsr = (struct llog_setattr_rec *)rec;
149 __swab64s(&lsr->lsr_oid);
150 __swab32s(&lsr->lsr_ogen);
151 __swab32s(&lsr->lsr_uid);
152 __swab32s(&lsr->lsr_gid);
158 case PTL_CFG_REC: /* obsolete */
159 /* these are swabbed as they are consumed */
162 case LLOG_HDR_MAGIC: {
163 struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
165 __swab64s(&llh->llh_timestamp);
166 __swab32s(&llh->llh_count);
167 __swab32s(&llh->llh_bitmap_offset);
168 __swab32s(&llh->llh_flags);
169 __swab32s(&llh->llh_size);
170 __swab32s(&llh->llh_cat_idx);
171 if (tail != &llh->llh_tail) {
172 __swab32s(&llh->llh_tail.lrt_index);
173 __swab32s(&llh->llh_tail.lrt_len);
179 case LLOG_LOGID_MAGIC: {
180 struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
182 __swab64s(&lid->lid_id.lgl_oid);
183 __swab64s(&lid->lid_id.lgl_ogr);
184 __swab32s(&lid->lid_id.lgl_ogen);
189 /* ignore old pad records of type 0 */
194 CERROR("Unknown llog rec type %#x swabbing rec %p\n",
199 __swab32s(&tail->lrt_len);
200 __swab32s(&tail->lrt_index);
203 EXPORT_SYMBOL(lustre_swab_llog_rec);
205 static void print_llog_hdr(struct llog_log_hdr *h)
207 CDEBUG(D_OTHER, "llog header: %p\n", h);
208 CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
209 CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
210 CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
211 CDEBUG(D_OTHER, "\tllh_timestamp: "LPX64"\n", h->llh_timestamp);
212 CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
213 CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
214 CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
215 CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
216 CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
217 CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index);
218 CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
221 void lustre_swab_llog_hdr (struct llog_log_hdr *h)
226 lustre_swab_llog_rec(&h->llh_hdr, &h->llh_tail);
231 EXPORT_SYMBOL(lustre_swab_llog_hdr);
233 static void print_lustre_cfg(struct lustre_cfg *lcfg)
238 if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */
240 CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg);
241 CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version);
243 CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command);
244 CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num);
245 CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags);
246 CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid));
248 CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount);
249 if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT)
250 for (i = 0; i < lcfg->lcfg_bufcount; i++)
251 CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n",
252 i, lcfg->lcfg_buflens[i]);
256 void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
261 __swab32s(&lcfg->lcfg_version);
263 if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
264 CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n",
265 lcfg->lcfg_version, LUSTRE_CFG_VERSION);
270 __swab32s(&lcfg->lcfg_command);
271 __swab32s(&lcfg->lcfg_num);
272 __swab32s(&lcfg->lcfg_flags);
273 __swab64s(&lcfg->lcfg_nid);
274 __swab32s(&lcfg->lcfg_bufcount);
275 for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++)
276 __swab32s(&lcfg->lcfg_buflens[i]);
278 print_lustre_cfg(lcfg);
282 EXPORT_SYMBOL(lustre_swab_lustre_cfg);