1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <sys/mdb_modapi.h>
28
29 #include <sys/nsctl/nsctl.h>
30 #include <sys/unistat/spcs_s.h>
31 #include <sys/unistat/spcs_s_k.h>
32
33
34 #include <sys/nsctl/dsw.h>
35 #include <sys/nsctl/dsw_dev.h>
36
37 #include <sys/nsctl/nsvers.h>
38
39 #define offsetof(s, m) ((size_t)(&((s *)0)->m))
40
41
42 const mdb_bitmask_t bi_flags_bits[] = {
43 { "DSW_GOLDEN", DSW_GOLDEN, DSW_GOLDEN },
44 { "DSW_COPYINGP", DSW_COPYINGP, DSW_COPYINGP },
45 { "DSW_COPYINGM", DSW_COPYINGM, DSW_COPYINGM },
46 { "DSW_COPYINGS", DSW_COPYINGS, DSW_COPYINGS },
47 { "DSW_COPYINGX", DSW_COPYINGX, DSW_COPYINGX },
48 { "DSW_BMPOFFLINE", DSW_BMPOFFLINE, DSW_BMPOFFLINE },
49 { "DSW_SHDOFFLINE", DSW_SHDOFFLINE, DSW_SHDOFFLINE },
50 { "DSW_MSTOFFLINE", DSW_MSTOFFLINE, DSW_MSTOFFLINE },
51 { "DSW_OVROFFLINE", DSW_OVROFFLINE, DSW_OVROFFLINE },
52 { "DSW_TREEMAP", DSW_TREEMAP, DSW_TREEMAP },
53 { "DSW_OVERFLOW", DSW_OVERFLOW, DSW_OVERFLOW },
54 { "DSW_SHDEXPORT", DSW_SHDEXPORT, DSW_SHDEXPORT },
55 { "DSW_SHDIMPORT", DSW_SHDIMPORT, DSW_SHDIMPORT },
56 { "DSW_VOVERFLOW", DSW_VOVERFLOW, DSW_VOVERFLOW },
57 { "DSW_HANGING", DSW_HANGING, DSW_HANGING },
58 { "DSW_CFGOFFLINE", DSW_CFGOFFLINE, DSW_CFGOFFLINE },
59 { "DSW_OVRHDRDRTY", DSW_OVRHDRDRTY, DSW_OVRHDRDRTY },
60 { "DSW_RESIZED", DSW_RESIZED, DSW_RESIZED },
61 { "DSW_FRECLAIM", DSW_FRECLAIM, DSW_FRECLAIM },
62 { NULL, 0, 0 }
63 };
64
65 const mdb_bitmask_t bi_state_bits[] = {
66 { "DSW_IOCTL", DSW_IOCTL, DSW_IOCTL },
67 { "DSW_CLOSING", DSW_CLOSING, DSW_CLOSING },
68 { "DSW_MSTTARGET", DSW_MSTTARGET, DSW_MSTTARGET },
69 { "DSW_MULTIMST", DSW_MULTIMST, DSW_MULTIMST },
70 { NULL, 0, 0 }
71 };
72 static uintptr_t nextaddr;
73 /*
74 * Display a ii_fd_t
75 * Requires an address.
76 */
77 /*ARGSUSED*/
78 static int
79 ii_fd(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
80 {
81 ii_fd_t fd;
82
83 if (!(flags & DCMD_ADDRSPEC))
84 return (DCMD_USAGE);
85
86 if (mdb_vread(&fd, sizeof (fd), addr) != sizeof (fd)) {
87 mdb_warn("failed to read ii_fd_t at 0x%p", addr);
88 return (DCMD_ERR);
89 }
90
91 mdb_inc_indent(4);
92 mdb_printf("ii_info: 0x%p ii_bmp: %d ii_shd: %d ii_ovr: %d ii_optr: "
93 "0x%p\nii_oflags: 0x%x\n", fd.ii_info, fd.ii_bmp, fd.ii_shd,
94 fd.ii_ovr, fd.ii_optr, fd.ii_oflags);
95 mdb_dec_indent(4);
96
97 return (DCMD_OK);
98 }
99
100 /*
101 * displays a ii_info_dev structure.
102 */
103 /*ARGSUSED*/
104 static int
105 ii_info_dev(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
106 {
107 _ii_info_dev_t ipdev;
108
109 if (!(flags & DCMD_ADDRSPEC))
110 return (DCMD_USAGE);
111
112 if (mdb_vread(&ipdev, sizeof (ipdev), addr) != sizeof (ipdev)) {
113 mdb_warn("failed to read ii_info_dev_t at 0x%p", addr);
114 return (DCMD_ERR);
115 }
116
117 mdb_inc_indent(4);
118 mdb_printf("bi_fd: 0x%p bi_iodev: 0x%p bi_tok: 0x%p\n",
119 ipdev.bi_fd, ipdev.bi_iodev, ipdev.bi_tok);
120 mdb_printf("bi_ref: %d bi_rsrv: %d bi_orsrv: %d\n",
121 ipdev.bi_ref, ipdev.bi_rsrv, ipdev.bi_orsrv);
122
123 /*
124 * use nsc_fd to dump the fd details.... if present.
125 */
126 if (ipdev.bi_fd) {
127 mdb_printf("nsc_fd structure:\n");
128 mdb_inc_indent(4);
129 mdb_call_dcmd("nsc_fd", (uintptr_t)(ipdev.bi_fd),
130 flags, 0, NULL);
131 mdb_dec_indent(4);
132 }
133 mdb_dec_indent(4);
134 return (DCMD_OK);
135 }
136
137 /*
138 * Displays an _ii_overflow structure
139 */
140 /*ARGSUSED*/
141 static int
142 ii_overflow(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
143 {
144 _ii_overflow_t ii_overflow;
145
146 nextaddr = 0;
147 if (!(flags & DCMD_ADDRSPEC))
148 return (DCMD_USAGE);
149
150 if (mdb_vread(&ii_overflow, sizeof (ii_overflow), addr)
151 != sizeof (ii_overflow)) {
152 mdb_warn("failed to read ii_overflow_t at 0x%p", addr);
153 return (DCMD_ERR);
154 }
155
156 mdb_inc_indent(4);
157 mdb_printf("_ii_overflow at 0x%p\n", addr);
158 mdb_printf("_ii_doverflow_t\n");
159 mdb_inc_indent(4);
160 mdb_printf("ii_dvolname: %s\n", ii_overflow.ii_volname);
161 mdb_printf("ii_dhmagic: %x\n", ii_overflow.ii_hmagic);
162 mdb_printf("ii_dhversion: %x\n", ii_overflow.ii_hversion);
163 mdb_printf("ii_ddrefcnt: %x\n", ii_overflow.ii_drefcnt);
164 mdb_printf("ii_dflags: %x\n", ii_overflow.ii_flags);
165 mdb_printf("ii_dfreehead: %x\n", ii_overflow.ii_freehead);
166 mdb_printf("ii_dnchunks: %x\n", ii_overflow.ii_nchunks);
167 mdb_printf("ii_dunused: %x\n", ii_overflow.ii_unused);
168 mdb_printf("ii_dused: %x\n", ii_overflow.ii_used);
169 mdb_printf("ii_urefcnt: %x\n", ii_overflow.ii_urefcnt);
170 mdb_dec_indent(4);
171
172 mdb_printf("ii_mutex: %x\n", ii_overflow.ii_mutex);
173 mdb_printf("ii_kstat_mutex: %x\n", ii_overflow.ii_kstat_mutex);
174 mdb_printf("ii_crefcnt: %d\n", ii_overflow.ii_crefcnt);
175 mdb_printf("ii_detachcnt: %d\n", ii_overflow.ii_detachcnt);
176 mdb_printf("ii_next: %x\n", ii_overflow.ii_next);
177
178 mdb_printf("Overflow volume:\n");
179 if (ii_overflow.ii_dev)
180 ii_info_dev((uintptr_t)ii_overflow.ii_dev, flags, 0, NULL);
181
182 mdb_printf(" ii_ioname: %s\n", &ii_overflow.ii_ioname);
183 mdb_dec_indent(4);
184
185 nextaddr = (uintptr_t)ii_overflow.ii_next;
186 return (DCMD_OK);
187 }
188 /*ARGSUSED*/
189 static int
190 ii_info(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
191 {
192 _ii_info_t ii_info = {0};
193 char string[DSW_NAMELEN];
194
195 nextaddr = 0;
196 if (!(flags & DCMD_ADDRSPEC))
197 return (DCMD_USAGE);
198
199 if (mdb_vread(&ii_info, sizeof (ii_info), addr) != sizeof (ii_info)) {
200 mdb_warn("failed to read ii_info_t at 0x%p", addr);
201 return (DCMD_ERR);
202 }
203
204 mdb_printf(
205 "bi_next: 0x%p\n"
206 "bi_head: 0x%p\t"
207 "bi_sibling: 0x%p\n"
208 "bi_master: 0x%p\t"
209 "bi_nextmst: 0x%p\n",
210 ii_info.bi_next, ii_info.bi_head, ii_info.bi_sibling,
211 ii_info.bi_master, ii_info.bi_nextmst);
212
213 mdb_printf("bi_mutex: 0x%p\n", ii_info.bi_mutex);
214
215 /*
216 * Print out all the fds by using ii_info_dev
217 */
218 mdb_printf("Cache master:\n");
219 if (ii_info.bi_mstdev)
220 ii_info_dev((uintptr_t)ii_info.bi_mstdev, flags, 0, NULL);
221
222 mdb_printf("Raw master:\n");
223 if (ii_info.bi_mstrdev)
224 ii_info_dev((uintptr_t)ii_info.bi_mstrdev, flags, 0, NULL);
225
226 mdb_printf("Cache shadow:\n");
227 ii_info_dev((uintptr_t)(addr + offsetof(_ii_info_t, bi_shddev)),
228 flags, 0, NULL);
229
230 mdb_printf("Raw shadow:\n");
231 ii_info_dev((uintptr_t)(addr + offsetof(_ii_info_t, bi_shdrdev)),
232 flags, 0, NULL);
233
234 mdb_printf("Bitmap:\n");
235 ii_info_dev((uintptr_t)(addr + offsetof(_ii_info_t, bi_bmpdev)),
236 flags, 0, NULL);
237
238 mdb_printf("bi_keyname: %-*s\n", DSW_NAMELEN, ii_info.bi_keyname);
239 mdb_printf("bi_bitmap: 0x%p\n", ii_info.bi_bitmap);
240
241 if ((ii_info.bi_cluster == NULL) ||
242 (mdb_vread(&string, sizeof (string), (uintptr_t)ii_info.bi_cluster)
243 != sizeof (string)))
244 string[0] = 0;
245 mdb_printf("bi_cluster: %s\n", string);
246
247 if ((ii_info.bi_group == NULL) ||
248 (mdb_vread(&string, sizeof (string), (uintptr_t)ii_info.bi_group)
249 != sizeof (string)))
250 string[0] = 0;
251 mdb_printf("bi_group: %s\n", string);
252
253 mdb_printf("bi_busy: 0x%p\n", ii_info.bi_busy);
254
255 mdb_printf("bi_shdfba: %0x\t", ii_info.bi_shdfba);
256 mdb_printf("bi_shdbits: %0x\n", ii_info.bi_shdbits);
257 mdb_printf("bi_copyfba: %0x\t", ii_info.bi_copyfba);
258 mdb_printf("bi_copybits: %0x\n", ii_info.bi_copybits);
259
260 mdb_printf("bi_size: %0x\n", ii_info.bi_size);
261
262 mdb_printf("bi_flags: 0x%x <%b>\n",
263 ii_info.bi_flags, ii_info.bi_flags, bi_flags_bits);
264
265 mdb_printf("bi_state: 0x%x <%b>\n",
266 ii_info.bi_state, ii_info.bi_state, bi_state_bits);
267
268 mdb_printf("bi_disabled: %d\n", ii_info.bi_disabled);
269 mdb_printf("bi_ioctl: %d\n", ii_info.bi_ioctl);
270 mdb_printf("bi_release: %d\t", ii_info.bi_release);
271 mdb_printf("bi_rsrvcnt: %d\n", ii_info.bi_rsrvcnt);
272
273 mdb_printf("bi_copydonecv: %x\t", ii_info.bi_copydonecv);
274 mdb_printf("bi_reservecv: %x\n", ii_info.bi_reservecv);
275 mdb_printf("bi_releasecv: %x\t", ii_info.bi_releasecv);
276 mdb_printf("bi_closingcv: %x\n", ii_info.bi_closingcv);
277 mdb_printf("bi_ioctlcv: %x\t", ii_info.bi_ioctlcv);
278 mdb_printf("bi_busycv: %x\n", ii_info.bi_busycv);
279 mdb_call_dcmd("rwlock", (uintptr_t)(addr +
280 offsetof(_ii_info_t, bi_busyrw)), flags, 0, NULL);
281 mdb_printf("bi_bitmap_ops: 0x%p\n", ii_info.bi_bitmap_ops);
282
283 mdb_printf("bi_rsrvmutex: %x\t", ii_info.bi_rsrvmutex);
284 mdb_printf("bi_rlsemutex: %x\n", ii_info.bi_rlsemutex);
285 mdb_printf("bi_bmpmutex: %x\n", ii_info.bi_bmpmutex);
286
287 mdb_printf("bi_mstchks: %d\t", ii_info.bi_mstchks);
288 mdb_printf("bi_shdchks: %d\n", ii_info.bi_shdchks);
289 mdb_printf("bi_shdchkused: %d\t", ii_info.bi_shdchkused);
290 mdb_printf("bi_shdfchk: %d\n", ii_info.bi_shdfchk);
291
292 mdb_printf("bi_overflow\n");
293 if (ii_info.bi_overflow)
294 ii_overflow((uintptr_t)ii_info.bi_overflow, flags, 0, NULL);
295
296 mdb_printf("bi_iifd:\n");
297 if (ii_info.bi_iifd)
298 (void) ii_fd((uintptr_t)ii_info.bi_iifd, flags, 0, NULL);
299
300 mdb_printf("bi_throttle_unit: %d\t", ii_info.bi_throttle_unit);
301 mdb_printf("bi_throttle_delay: %d\n", ii_info.bi_throttle_delay);
302
303 mdb_printf("bi_linkrw:\n");
304 mdb_call_dcmd("rwlock", (uintptr_t)(addr +
305 offsetof(_ii_info_t, bi_linkrw)), flags, 0, NULL);
306
307 mdb_printf("bi_chksmutex: %x\n", ii_info.bi_chksmutex);
308 mdb_printf("bi_locked_pid: %x\n", ii_info.bi_locked_pid);
309 mdb_printf("bi_kstat: 0x%p\n", ii_info.bi_kstat);
310 /* ii_kstat_info_t bi_kstat_io; */
311
312 nextaddr = (uintptr_t)ii_info.bi_next;
313 return (DCMD_OK);
314 }
315
316 /*
317 * This should be a walker surely.
318 */
319 /*ARGSUSED*/
320 static int
321 ii_info_all(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
322 {
323 uintptr_t myaddr;
324 /*
325 * we use the global address.
326 */
327 if (flags & DCMD_ADDRSPEC)
328 return (DCMD_USAGE);
329
330 if (mdb_readsym(&myaddr, sizeof (myaddr), "_ii_info_top") !=
331 sizeof (myaddr)) {
332 return (DCMD_ERR);
333 }
334
335 mdb_printf("_ii_info_top contains 0x%lx\n", myaddr);
336
337 while (myaddr) {
338 ii_info(myaddr, DCMD_ADDRSPEC, 0, NULL);
339 myaddr = nextaddr;
340 }
341 return (DCMD_OK);
342 }
343
344 /*
345 * Display general ii module information.
346 */
347
348 #define ii_get_print(kvar, str, fmt, val) \
349 if (mdb_readvar(&(val), #kvar) == -1) { \
350 mdb_dec_indent(4); \
351 mdb_warn("unable to read '" #kvar "'"); \
352 return (DCMD_ERR); \
353 } \
354 mdb_printf("%-20s" fmt "\n", str ":", val)
355
356 /* ARGSUSED */
357 static int
358 ii(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
359 {
360 int maj, min, mic, baseline, i;
361
362 if (argc != 0)
363 return (DCMD_USAGE);
364
365 if (mdb_readvar(&maj, "dsw_major_rev") == -1) {
366 mdb_warn("unable to read 'dsw_major_rev'");
367 return (DCMD_ERR);
368 }
369
370 if (mdb_readvar(&min, "dsw_minor_rev") == -1) {
371 mdb_warn("unable to read 'dsw_minor_rev'");
372 return (DCMD_ERR);
373 }
374
375 if (mdb_readvar(&mic, "dsw_micro_rev") == -1) {
376 mdb_warn("unable to read 'dsw_micro_rev'");
377 return (DCMD_ERR);
378 }
379
380 if (mdb_readvar(&baseline, "dsw_baseline_rev") == -1) {
381 mdb_warn("unable to read 'dsw_baseline_rev'");
382 return (DCMD_ERR);
383 }
384
385 mdb_printf("Point-in-Time Copy module version: kernel %d.%d.%d.%d; "
386 "mdb %d.%d.%d.%d\n", maj, min, mic, baseline,
387 ISS_VERSION_MAJ, ISS_VERSION_MIN, ISS_VERSION_MIC, ISS_VERSION_NUM);
388
389 mdb_inc_indent(4);
390 ii_get_print(ii_debug, "debug", "%d", i);
391 ii_get_print(ii_bitmap, "bitmaps", "%d", i);
392 mdb_dec_indent(4);
393
394 return (DCMD_OK);
395 }
396
397
398 /*
399 * MDB module linkage information:
400 */
401
402 static const mdb_dcmd_t dcmds[] = {
403 { "ii", NULL, "display ii module info", ii },
404 { "ii_fd", NULL, "display ii_fd structure", ii_fd },
405 { "ii_info", NULL, "display ii_info structure", ii_info },
406 { "ii_info_all", NULL, "display all ii_info structures", ii_info_all },
407 { "ii_info_dev", NULL, "display ii_info_dev structure", ii_info_dev},
408 { "ii_overflow", NULL, "display ii_overflow structure", ii_overflow},
409 { NULL }
410 };
411
412
413 static const mdb_walker_t walkers[] = {
414 { NULL }
415 };
416
417
418 static const mdb_modinfo_t modinfo = {
419 MDB_API_VERSION, dcmds, walkers
420 };
421
422
423 const mdb_modinfo_t *
424 _mdb_init(void)
425 {
426 return (&modinfo);
427 }