1 /* $NetBSD: rf_compat80.c,v 1.17 2022/06/28 03:13:27 oster Exp $ */
2
3 /*
4 * Copyright (c) 2017 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/types.h>
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/module.h>
33
34 #include <sys/compat_stub.h>
35
36 #include <dev/raidframe/raidframeio.h>
37 #include <dev/raidframe/raidframevar.h>
38
39 #include "rf_raid.h"
40 #include "rf_compat80.h"
41 #include "rf_kintf.h"
42
43 /* NetBSD 8.99.x removed the row, raidPtr and next members */
44 struct rf_recon_req80 {
45 RF_RowCol_t row, col;
46 RF_ReconReqFlags_t flags;
47 void *raidPtr; /* used internally; need not be set at ioctl
48 * time */
49 struct rf_recon_req *next; /* used internally; need not be set at
50 * ioctl time */
51 };
52
53 /* NetBSD 8.99.x made this structure alignment neutral */
54 typedef struct RF_RaidDisk_s80 {
55 char devname[56]; /* name of device file */
56 RF_DiskStatus_t status; /* whether it is up or down */
57 RF_RowCol_t spareRow; /* if in status "spared", this identifies the
58 * spare disk */
59 RF_RowCol_t spareCol; /* if in status "spared", this identifies the
60 * spare disk */
61 RF_SectorCount_t numBlocks; /* number of blocks, obtained via READ
62 * CAPACITY */
63 int blockSize;
64 RF_SectorCount_t partitionSize; /* The *actual* and *full* size of
65 the partition, from the disklabel */
66 int auto_configured;/* 1 if this component was autoconfigured.
67 0 otherwise. */
68 dev_t dev;
69 } RF_RaidDisk_t80;
70
71 typedef struct RF_DeviceConfig_s80 {
72 u_int rows;
73 u_int cols;
74 u_int maxqdepth;
75 int ndevs;
76 RF_RaidDisk_t80 devs[RF_MAX_DISKS];
77 int nspares;
78 RF_RaidDisk_t80 spares[RF_MAX_DISKS];
79 } RF_DeviceConfig_t80;
80
81 typedef struct RF_Config_s80 {
82 RF_RowCol_t numRow, numCol, numSpare; /* number of rows, columns,
83 * and spare disks */
84 dev_t devs[RF_MAXROW][RF_MAXCOL]; /* device numbers for disks
85 * comprising array */
86 char devnames[RF_MAXROW][RF_MAXCOL][50]; /* device names */
87 dev_t spare_devs[RF_MAXSPARE]; /* device numbers for spare
88 * disks */
89 char spare_names[RF_MAXSPARE][50]; /* device names */
90 RF_SectorNum_t sectPerSU; /* sectors per stripe unit */
91 RF_StripeNum_t SUsPerPU;/* stripe units per parity unit */
92 RF_StripeNum_t SUsPerRU;/* stripe units per reconstruction unit */
93 RF_ParityConfig_t parityConfig; /* identifies the RAID architecture to
94 * be used */
95 RF_DiskQueueType_t diskQueueType; /* 'f' = fifo, 'c' = cvscan,
96 * not used in kernel */
97 char maxOutstandingDiskReqs; /* # concurrent reqs to be sent to a
98 * disk. not used in kernel. */
99 char debugVars[RF_MAXDBGV][50]; /* space for specifying debug
100 * variables & their values */
101 unsigned int layoutSpecificSize; /* size in bytes of
102 * layout-specific info */
103 void *layoutSpecific; /* a pointer to a layout-specific structure to
104 * be copied in */
105 int force; /* if !0, ignore many fatal
106 configuration conditions */
107 /*
108 "force" is used to override cases where the component labels would
109 indicate that configuration should not proceed without user
110 intervention
111 */
112 } RF_Config_t80;
113
114 static int
rf_check_recon_status_ext80(RF_Raid_t * raidPtr,void * data)115 rf_check_recon_status_ext80(RF_Raid_t *raidPtr, void *data)
116 {
117 RF_ProgressInfo_t info, **infoPtr = data;
118
119 rf_check_recon_status_ext(raidPtr, &info);
120 return copyout(&info, *infoPtr, sizeof(info));
121 }
122
123 static int
rf_check_parityrewrite_status_ext80(RF_Raid_t * raidPtr,void * data)124 rf_check_parityrewrite_status_ext80(RF_Raid_t *raidPtr, void *data)
125 {
126 RF_ProgressInfo_t info, **infoPtr = data;
127
128 rf_check_parityrewrite_status_ext(raidPtr, &info);
129 return copyout(&info, *infoPtr, sizeof(info));
130 }
131
132 static int
rf_check_copyback_status_ext80(RF_Raid_t * raidPtr,void * data)133 rf_check_copyback_status_ext80(RF_Raid_t *raidPtr, void *data)
134 {
135 RF_ProgressInfo_t info, **infoPtr = data;
136
137 rf_check_copyback_status_ext(raidPtr, &info);
138 return copyout(&info, *infoPtr, sizeof(info));
139 }
140
141 static void
rf_copy_raiddisk80(RF_RaidDisk_t * disk,RF_RaidDisk_t80 * disk80)142 rf_copy_raiddisk80(RF_RaidDisk_t *disk, RF_RaidDisk_t80 *disk80)
143 {
144
145 /* Be sure the padding areas don't have kernel memory. */
146 memset(disk80, 0, sizeof(*disk80));
147 memcpy(disk80->devname, disk->devname, sizeof(disk80->devname));
148 disk80->status = disk->status;
149 disk80->spareRow = 0;
150 disk80->spareCol = disk->spareCol;
151 disk80->numBlocks = disk->numBlocks;
152 disk80->blockSize = disk->blockSize;
153 disk80->partitionSize = disk->partitionSize;
154 disk80->auto_configured = disk->auto_configured;
155 disk80->dev = disk->dev;
156 }
157
158 static int
rf_get_info80(RF_Raid_t * raidPtr,void * data)159 rf_get_info80(RF_Raid_t *raidPtr, void *data)
160 {
161 RF_DeviceConfig_t *config;
162 RF_DeviceConfig_t80 *config80, **configPtr80 = data;
163 int rv;
164
165 config = RF_Malloc(sizeof(*config));
166 if (config == NULL)
167 return ENOMEM;
168 config80 = RF_Malloc(sizeof(*config80));
169 if (config80 == NULL) {
170 RF_Free(config, sizeof(*config));
171 return ENOMEM;
172 }
173 rv = rf_get_info(raidPtr, config);
174 if (rv == 0) {
175 /* convert new to old */
176 config80->rows = 1;
177 config80->cols = config->cols;
178 config80->maxqdepth = config->maxqdepth;
179 config80->ndevs = config->ndevs;
180 config80->nspares = config->nspares;
181 for (size_t i = 0; i < RF_MAX_DISKS; i++) {
182 rf_copy_raiddisk80(&config->devs[i],
183 &config80->devs[i]);
184 rf_copy_raiddisk80(&config->spares[i],
185 &config80->spares[i]);
186 }
187 rv = copyout(config80, *configPtr80, sizeof(*config80));
188 }
189 RF_Free(config, sizeof(*config));
190 RF_Free(config80, sizeof(*config80));
191
192 return rv;
193 }
194
195 static int
rf_get_component_label80(RF_Raid_t * raidPtr,void * data)196 rf_get_component_label80(RF_Raid_t *raidPtr, void *data)
197 {
198 RF_ComponentLabel_t **clabel_ptr = (RF_ComponentLabel_t **)data;
199 RF_ComponentLabel_t *clabel;
200 int retcode;
201
202 /*
203 * Perhaps there should be an option to skip the in-core
204 * copy and hit the disk, as with disklabel(8).
205 */
206 clabel = RF_Malloc(sizeof(*clabel));
207 if (clabel == NULL)
208 return ENOMEM;
209 retcode = copyin(*clabel_ptr, clabel, sizeof(*clabel));
210 if (retcode) {
211 RF_Free(clabel, sizeof(*clabel));
212 return retcode;
213 }
214
215 rf_get_component_label(raidPtr, clabel);
216 /* Fix-up for userland. */
217 if (clabel->version == bswap32(RF_COMPONENT_LABEL_VERSION))
218 clabel->version = RF_COMPONENT_LABEL_VERSION;
219
220 retcode = copyout(clabel, *clabel_ptr, sizeof(**clabel_ptr));
221 RF_Free(clabel, sizeof(*clabel));
222
223 return retcode;
224 }
225
226 static int
rf_config80(struct raid_softc * rs,void * data)227 rf_config80(struct raid_softc *rs, void *data)
228 {
229 RF_Config_t80 *u80_cfg, *k80_cfg;
230 RF_Config_t *k_cfg;
231 RF_Raid_t *raidPtr = rf_get_raid(rs);
232 size_t i, j;
233 int error;
234
235 if (raidPtr->valid) {
236 /* There is a valid RAID set running on this unit! */
237 printf("raid%d: Device already configured!\n", rf_get_unit(rs));
238 return EINVAL;
239 }
240
241 /* copy-in the configuration information */
242 /* data points to a pointer to the configuration structure */
243
244 u80_cfg = *((RF_Config_t80 **) data);
245 k80_cfg = RF_Malloc(sizeof(*k80_cfg));
246 if (k80_cfg == NULL)
247 return ENOMEM;
248
249 error = copyin(u80_cfg, k80_cfg, sizeof(*k80_cfg));
250 if (error) {
251 RF_Free(k80_cfg, sizeof(*k80_cfg));
252 return error;
253 }
254 k_cfg = RF_Malloc(sizeof(*k_cfg));
255 if (k_cfg == NULL) {
256 RF_Free(k80_cfg, sizeof(*k80_cfg));
257 return ENOMEM;
258 }
259
260 k_cfg->numCol = k80_cfg->numCol;
261 k_cfg->numSpare = k80_cfg->numSpare;
262
263 for (i = 0; i < RF_MAXROW; i++)
264 for (j = 0; j < RF_MAXCOL; j++)
265 k_cfg->devs[i][j] = k80_cfg->devs[i][j];
266
267 memcpy(k_cfg->devnames, k80_cfg->devnames,
268 sizeof(k_cfg->devnames));
269
270 for (i = 0; i < RF_MAXSPARE; i++)
271 k_cfg->spare_devs[i] = k80_cfg->spare_devs[i];
272
273 memcpy(k_cfg->spare_names, k80_cfg->spare_names,
274 sizeof(k_cfg->spare_names));
275
276 k_cfg->sectPerSU = k80_cfg->sectPerSU;
277 k_cfg->SUsPerPU = k80_cfg->SUsPerPU;
278 k_cfg->SUsPerRU = k80_cfg->SUsPerRU;
279 k_cfg->parityConfig = k80_cfg->parityConfig;
280
281 memcpy(k_cfg->diskQueueType, k80_cfg->diskQueueType,
282 sizeof(k_cfg->diskQueueType));
283
284 k_cfg->maxOutstandingDiskReqs = k80_cfg->maxOutstandingDiskReqs;
285
286 memcpy(k_cfg->debugVars, k80_cfg->debugVars,
287 sizeof(k_cfg->debugVars));
288
289 k_cfg->layoutSpecificSize = k80_cfg->layoutSpecificSize;
290 k_cfg->layoutSpecific = k80_cfg->layoutSpecific;
291 k_cfg->force = k80_cfg->force;
292
293 RF_Free(k80_cfg, sizeof(*k80_cfg));
294 return rf_construct(rs, k_cfg);
295 }
296
297 static int
rf_fail_disk80(RF_Raid_t * raidPtr,struct rf_recon_req80 * req80)298 rf_fail_disk80(RF_Raid_t *raidPtr, struct rf_recon_req80 *req80)
299 {
300 struct rf_recon_req req = {
301 .col = req80->col,
302 .flags = req80->flags,
303 };
304 return rf_fail_disk(raidPtr, &req);
305 }
306
307 static int
raidframe_ioctl_80(struct raid_softc * rs,u_long cmd,void * data)308 raidframe_ioctl_80(struct raid_softc *rs, u_long cmd, void *data)
309 {
310 RF_Raid_t *raidPtr = rf_get_raid(rs);
311
312 switch (cmd) {
313 case RAIDFRAME_CHECK_RECON_STATUS_EXT80:
314 case RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT80:
315 case RAIDFRAME_CHECK_COPYBACK_STATUS_EXT80:
316 case RAIDFRAME_GET_INFO80:
317 case RAIDFRAME_GET_COMPONENT_LABEL80:
318 case RAIDFRAME_FAIL_DISK80:
319 if (!rf_inited(rs))
320 return ENXIO;
321 break;
322 case RAIDFRAME_CONFIGURE80:
323 break;
324 default:
325 return EPASSTHROUGH;
326 }
327
328 switch (cmd) {
329 case RAIDFRAME_CHECK_RECON_STATUS_EXT80:
330 return rf_check_recon_status_ext80(raidPtr, data);
331 case RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT80:
332 return rf_check_parityrewrite_status_ext80(raidPtr, data);
333 case RAIDFRAME_CHECK_COPYBACK_STATUS_EXT80:
334 return rf_check_copyback_status_ext80(raidPtr, data);
335 case RAIDFRAME_GET_INFO80:
336 return rf_get_info80(raidPtr, data);
337 case RAIDFRAME_GET_COMPONENT_LABEL80:
338 return rf_get_component_label80(raidPtr, data);
339 case RAIDFRAME_CONFIGURE80:
340 return rf_config80(rs, data);
341 case RAIDFRAME_FAIL_DISK80:
342 return rf_fail_disk80(raidPtr, data);
343 default:
344 /* abort really */
345 return EPASSTHROUGH;
346 }
347 }
348
349 static void
raidframe_80_init(void)350 raidframe_80_init(void)
351 {
352
353 MODULE_HOOK_SET(raidframe_ioctl_80_hook, raidframe_ioctl_80);
354 }
355
356 static void
raidframe_80_fini(void)357 raidframe_80_fini(void)
358 {
359
360 MODULE_HOOK_UNSET(raidframe_ioctl_80_hook);
361 }
362
363 MODULE(MODULE_CLASS_EXEC, compat_raid_80, "raid,compat_80");
364
365 static int
compat_raid_80_modcmd(modcmd_t cmd,void * arg)366 compat_raid_80_modcmd(modcmd_t cmd, void *arg)
367 {
368
369 switch (cmd) {
370 case MODULE_CMD_INIT:
371 raidframe_80_init();
372 return 0;
373 case MODULE_CMD_FINI:
374 raidframe_80_fini();
375 return 0;
376 default:
377 return ENOTTY;
378 }
379 }
380