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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / s390 / block / dasd_fba.c
blobbec5486e0e6dad069da2a894ab77240f6b088560
1 /*
2 * File...........: linux/drivers/s390/block/dasd_fba.c
3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4 * Bugreports.to..: <Linux390@de.ibm.com>
5 * Copyright IBM Corp. 1999, 2009
6 */
7
8 #define KMSG_COMPONENT "dasd-fba"
9
10 #include <linux/stddef.h>
11 #include <linux/kernel.h>
12 #include <asm/debug.h>
13
14 #include <linux/slab.h>
15 #include <linux/hdreg.h> /* HDIO_GETGEO */
16 #include <linux/bio.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19
20 #include <asm/idals.h>
21 #include <asm/ebcdic.h>
22 #include <asm/io.h>
23 #include <asm/ccwdev.h>
24
25 #include "dasd_int.h"
26 #include "dasd_fba.h"
27
28 #ifdef PRINTK_HEADER
29 #undef PRINTK_HEADER
30 #endif /* PRINTK_HEADER */
31 #define PRINTK_HEADER "dasd(fba):"
32
33 #define DASD_FBA_CCW_WRITE 0x41
34 #define DASD_FBA_CCW_READ 0x42
35 #define DASD_FBA_CCW_LOCATE 0x43
36 #define DASD_FBA_CCW_DEFINE_EXTENT 0x63
37
38 MODULE_LICENSE("GPL");
39
40 static struct dasd_discipline dasd_fba_discipline;
41
42 struct dasd_fba_private {
43 struct dasd_fba_characteristics rdc_data;
44 };
45
46 static struct ccw_device_id dasd_fba_ids[] = {
47 { CCW_DEVICE_DEVTYPE (0x6310, 0, 0x9336, 0), .driver_info = 0x1},
48 { CCW_DEVICE_DEVTYPE (0x3880, 0, 0x3370, 0), .driver_info = 0x2},
49 { /* end of list */ },
50 };
51
52 MODULE_DEVICE_TABLE(ccw, dasd_fba_ids);
53
54 static struct ccw_driver dasd_fba_driver; /* see below */
55 static int
56 dasd_fba_probe(struct ccw_device *cdev)
57 {
58 return dasd_generic_probe(cdev, &dasd_fba_discipline);
59 }
60
61 static int
62 dasd_fba_set_online(struct ccw_device *cdev)
63 {
64 return dasd_generic_set_online(cdev, &dasd_fba_discipline);
65 }
66
67 static struct ccw_driver dasd_fba_driver = {
68 .name = "dasd-fba",
69 .owner = THIS_MODULE,
70 .ids = dasd_fba_ids,
71 .probe = dasd_fba_probe,
72 .remove = dasd_generic_remove,
73 .set_offline = dasd_generic_set_offline,
74 .set_online = dasd_fba_set_online,
75 .notify = dasd_generic_notify,
76 .freeze = dasd_generic_pm_freeze,
77 .thaw = dasd_generic_restore_device,
78 .restore = dasd_generic_restore_device,
79 };
80
81 static void
82 define_extent(struct ccw1 * ccw, struct DE_fba_data *data, int rw,
83 int blksize, int beg, int nr)
84 {
85 ccw->cmd_code = DASD_FBA_CCW_DEFINE_EXTENT;
86 ccw->flags = 0;
87 ccw->count = 16;
88 ccw->cda = (__u32) __pa(data);
89 memset(data, 0, sizeof (struct DE_fba_data));
90 if (rw == WRITE)
91 (data->mask).perm = 0x0;
92 else if (rw == READ)
93 (data->mask).perm = 0x1;
94 else
95 data->mask.perm = 0x2;
96 data->blk_size = blksize;
97 data->ext_loc = beg;
98 data->ext_end = nr - 1;
99 }
100
101 static void
102 locate_record(struct ccw1 * ccw, struct LO_fba_data *data, int rw,
103 int block_nr, int block_ct)
104 {
105 ccw->cmd_code = DASD_FBA_CCW_LOCATE;
106 ccw->flags = 0;
107 ccw->count = 8;
108 ccw->cda = (__u32) __pa(data);
109 memset(data, 0, sizeof (struct LO_fba_data));
110 if (rw == WRITE)
111 data->operation.cmd = 0x5;
112 else if (rw == READ)
113 data->operation.cmd = 0x6;
114 else
115 data->operation.cmd = 0x8;
116 data->blk_nr = block_nr;
117 data->blk_ct = block_ct;
118 }
119
120 static int
121 dasd_fba_check_characteristics(struct dasd_device *device)
122 {
123 struct dasd_block *block;
124 struct dasd_fba_private *private;
125 struct ccw_device *cdev = device->cdev;
126 int rc;
127 int readonly;
128
129 private = (struct dasd_fba_private *) device->private;
130 if (!private) {
131 private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
132 if (!private) {
133 dev_warn(&device->cdev->dev,
134 "Allocating memory for private DASD "
135 "data failed\n");
136 return -ENOMEM;
137 }
138 device->private = (void *) private;
139 } else {
140 memset(private, 0, sizeof(*private));
141 }
142 block = dasd_alloc_block();
143 if (IS_ERR(block)) {
144 DBF_EVENT_DEVID(DBF_WARNING, cdev, "%s", "could not allocate "
145 "dasd block structure");
146 device->private = NULL;
147 kfree(private);
148 return PTR_ERR(block);
149 }
150 device->block = block;
151 block->base = device;
152
153 /* Read Device Characteristics */
154 rc = dasd_generic_read_dev_chars(device, DASD_FBA_MAGIC,
155 &private->rdc_data, 32);
156 if (rc) {
157 DBF_EVENT_DEVID(DBF_WARNING, cdev, "Read device "
158 "characteristics returned error %d", rc);
159 device->block = NULL;
160 dasd_free_block(block);
161 device->private = NULL;
162 kfree(private);
163 return rc;
164 }
165
166 device->default_expires = DASD_EXPIRES;
167
168 readonly = dasd_device_is_ro(device);
169 if (readonly)
170 set_bit(DASD_FLAG_DEVICE_RO, &device->flags);
171
172 dev_info(&device->cdev->dev,
173 "New FBA DASD %04X/%02X (CU %04X/%02X) with %d MB "
174 "and %d B/blk%s\n",
175 cdev->id.dev_type,
176 cdev->id.dev_model,
177 cdev->id.cu_type,
178 cdev->id.cu_model,
179 ((private->rdc_data.blk_bdsa *
180 (private->rdc_data.blk_size >> 9)) >> 11),
181 private->rdc_data.blk_size,
182 readonly ? ", read-only device" : "");
183 return 0;
184 }
185
186 static int dasd_fba_do_analysis(struct dasd_block *block)
187 {
188 struct dasd_fba_private *private;
189 int sb, rc;
190
191 private = (struct dasd_fba_private *) block->base->private;
192 rc = dasd_check_blocksize(private->rdc_data.blk_size);
193 if (rc) {
194 DBF_DEV_EVENT(DBF_WARNING, block->base, "unknown blocksize %d",
195 private->rdc_data.blk_size);
196 return rc;
197 }
198 block->blocks = private->rdc_data.blk_bdsa;
199 block->bp_block = private->rdc_data.blk_size;
200 block->s2b_shift = 0; /* bits to shift 512 to get a block */
201 for (sb = 512; sb < private->rdc_data.blk_size; sb = sb << 1)
202 block->s2b_shift++;
203 return 0;
204 }
205
206 static int dasd_fba_fill_geometry(struct dasd_block *block,
207 struct hd_geometry *geo)
208 {
209 if (dasd_check_blocksize(block->bp_block) != 0)
210 return -EINVAL;
211 geo->cylinders = (block->blocks << block->s2b_shift) >> 10;
212 geo->heads = 16;
213 geo->sectors = 128 >> block->s2b_shift;
214 return 0;
215 }
216
217 static dasd_erp_fn_t
218 dasd_fba_erp_action(struct dasd_ccw_req * cqr)
219 {
220 return dasd_default_erp_action;
221 }
222
223 static dasd_erp_fn_t
224 dasd_fba_erp_postaction(struct dasd_ccw_req * cqr)
225 {
226 if (cqr->function == dasd_default_erp_action)
227 return dasd_default_erp_postaction;
228
229 DBF_DEV_EVENT(DBF_WARNING, cqr->startdev, "unknown ERP action %p",
230 cqr->function);
231 return NULL;
232 }
233
234 static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device,
235 struct irb *irb)
236 {
237 char mask;
238
239 /* first of all check for state change pending interrupt */
240 mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP;
241 if ((irb->scsw.cmd.dstat & mask) == mask) {
242 dasd_generic_handle_state_change(device);
243 return;
244 }
245
246 /* check for unsolicited interrupts */
247 DBF_DEV_EVENT(DBF_WARNING, device, "%s",
248 "unsolicited interrupt received");
249 device->discipline->dump_sense_dbf(device, irb, "unsolicited");
250 dasd_schedule_device_bh(device);
251 return;
252 };
253
254 static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
255 struct dasd_block *block,
256 struct request *req)
257 {
258 struct dasd_fba_private *private;
259 unsigned long *idaws;
260 struct LO_fba_data *LO_data;
261 struct dasd_ccw_req *cqr;
262 struct ccw1 *ccw;
263 struct req_iterator iter;
264 struct bio_vec *bv;
265 char *dst;
266 int count, cidaw, cplength, datasize;
267 sector_t recid, first_rec, last_rec;
268 unsigned int blksize, off;
269 unsigned char cmd;
270
271 private = (struct dasd_fba_private *) block->base->private;
272 if (rq_data_dir(req) == READ) {
273 cmd = DASD_FBA_CCW_READ;
274 } else if (rq_data_dir(req) == WRITE) {
275 cmd = DASD_FBA_CCW_WRITE;
276 } else
277 return ERR_PTR(-EINVAL);
278 blksize = block->bp_block;
279 /* Calculate record id of first and last block. */
280 first_rec = blk_rq_pos(req) >> block->s2b_shift;
281 last_rec =
282 (blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
283 /* Check struct bio and count the number of blocks for the request. */
284 count = 0;
285 cidaw = 0;
286 rq_for_each_segment(bv, req, iter) {
287 if (bv->bv_len & (blksize - 1))
288 /* Fba can only do full blocks. */
289 return ERR_PTR(-EINVAL);
290 count += bv->bv_len >> (block->s2b_shift + 9);
291 #if defined(CONFIG_64BIT)
292 if (idal_is_needed (page_address(bv->bv_page), bv->bv_len))
293 cidaw += bv->bv_len / blksize;
294 #endif
295 }
296 /* Paranoia. */
297 if (count != last_rec - first_rec + 1)
298 return ERR_PTR(-EINVAL);
299 /* 1x define extent + 1x locate record + number of blocks */
300 cplength = 2 + count;
301 /* 1x define extent + 1x locate record */
302 datasize = sizeof(struct DE_fba_data) + sizeof(struct LO_fba_data) +
303 cidaw * sizeof(unsigned long);
304 /*
305 * Find out number of additional locate record ccws if the device
306 * can't do data chaining.
307 */
308 if (private->rdc_data.mode.bits.data_chain == 0) {
309 cplength += count - 1;
310 datasize += (count - 1)*sizeof(struct LO_fba_data);
311 }
312 /* Allocate the ccw request. */
313 cqr = dasd_smalloc_request(DASD_FBA_MAGIC, cplength, datasize, memdev);
314 if (IS_ERR(cqr))
315 return cqr;
316 ccw = cqr->cpaddr;
317 /* First ccw is define extent. */
318 define_extent(ccw++, cqr->data, rq_data_dir(req),
319 block->bp_block, blk_rq_pos(req), blk_rq_sectors(req));
320 /* Build locate_record + read/write ccws. */
321 idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data));
322 LO_data = (struct LO_fba_data *) (idaws + cidaw);
323 /* Locate record for all blocks for smart devices. */
324 if (private->rdc_data.mode.bits.data_chain != 0) {
325 ccw[-1].flags |= CCW_FLAG_CC;
326 locate_record(ccw++, LO_data++, rq_data_dir(req), 0, count);
327 }
328 recid = first_rec;
329 rq_for_each_segment(bv, req, iter) {
330 dst = page_address(bv->bv_page) + bv->bv_offset;
331 if (dasd_page_cache) {
332 char *copy = kmem_cache_alloc(dasd_page_cache,
333 GFP_DMA | __GFP_NOWARN);
334 if (copy && rq_data_dir(req) == WRITE)
335 memcpy(copy + bv->bv_offset, dst, bv->bv_len);
336 if (copy)
337 dst = copy + bv->bv_offset;
338 }
339 for (off = 0; off < bv->bv_len; off += blksize) {
340 /* Locate record for stupid devices. */
341 if (private->rdc_data.mode.bits.data_chain == 0) {
342 ccw[-1].flags |= CCW_FLAG_CC;
343 locate_record(ccw, LO_data++,
344 rq_data_dir(req),
345 recid - first_rec, 1);
346 ccw->flags = CCW_FLAG_CC;
347 ccw++;
348 } else {
349 if (recid > first_rec)
350 ccw[-1].flags |= CCW_FLAG_DC;
351 else
352 ccw[-1].flags |= CCW_FLAG_CC;
353 }
354 ccw->cmd_code = cmd;
355 ccw->count = block->bp_block;
356 if (idal_is_needed(dst, blksize)) {
357 ccw->cda = (__u32)(addr_t) idaws;
358 ccw->flags = CCW_FLAG_IDA;
359 idaws = idal_create_words(idaws, dst, blksize);
360 } else {
361 ccw->cda = (__u32)(addr_t) dst;
362 ccw->flags = 0;
363 }
364 ccw++;
365 dst += blksize;
366 recid++;
367 }
368 }
369 if (blk_noretry_request(req) ||
370 block->base->features & DASD_FEATURE_FAILFAST)
371 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
372 cqr->startdev = memdev;
373 cqr->memdev = memdev;
374 cqr->block = block;
375 cqr->expires = memdev->default_expires * HZ; /* default 5 minutes */
376 cqr->retries = 32;
377 cqr->buildclk = get_clock();
378 cqr->status = DASD_CQR_FILLED;
379 return cqr;
380 }
381
382 static int
383 dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req)
384 {
385 struct dasd_fba_private *private;
386 struct ccw1 *ccw;
387 struct req_iterator iter;
388 struct bio_vec *bv;
389 char *dst, *cda;
390 unsigned int blksize, off;
391 int status;
392
393 if (!dasd_page_cache)
394 goto out;
395 private = (struct dasd_fba_private *) cqr->block->base->private;
396 blksize = cqr->block->bp_block;
397 ccw = cqr->cpaddr;
398 /* Skip over define extent & locate record. */
399 ccw++;
400 if (private->rdc_data.mode.bits.data_chain != 0)
401 ccw++;
402 rq_for_each_segment(bv, req, iter) {
403 dst = page_address(bv->bv_page) + bv->bv_offset;
404 for (off = 0; off < bv->bv_len; off += blksize) {
405 /* Skip locate record. */
406 if (private->rdc_data.mode.bits.data_chain == 0)
407 ccw++;
408 if (dst) {
409 if (ccw->flags & CCW_FLAG_IDA)
410 cda = *((char **)((addr_t) ccw->cda));
411 else
412 cda = (char *)((addr_t) ccw->cda);
413 if (dst != cda) {
414 if (rq_data_dir(req) == READ)
415 memcpy(dst, cda, bv->bv_len);
416 kmem_cache_free(dasd_page_cache,
417 (void *)((addr_t)cda & PAGE_MASK));
418 }
419 dst = NULL;
420 }
421 ccw++;
422 }
423 }
424 out:
425 status = cqr->status == DASD_CQR_DONE;
426 dasd_sfree_request(cqr, cqr->memdev);
427 return status;
428 }
429
430 static void dasd_fba_handle_terminated_request(struct dasd_ccw_req *cqr)
431 {
432 cqr->status = DASD_CQR_FILLED;
433 };
434
435 static int
436 dasd_fba_fill_info(struct dasd_device * device,
437 struct dasd_information2_t * info)
438 {
439 info->label_block = 1;
440 info->FBA_layout = 1;
441 info->format = DASD_FORMAT_LDL;
442 info->characteristics_size = sizeof(struct dasd_fba_characteristics);
443 memcpy(info->characteristics,
444 &((struct dasd_fba_private *) device->private)->rdc_data,
445 sizeof (struct dasd_fba_characteristics));
446 info->confdata_size = 0;
447 return 0;
448 }
449
450 static void
451 dasd_fba_dump_sense_dbf(struct dasd_device *device, struct irb *irb,
452 char *reason)
453 {
454 u64 *sense;
455
456 sense = (u64 *) dasd_get_sense(irb);
457 if (sense) {
458 DBF_DEV_EVENT(DBF_EMERG, device,
459 "%s: %s %02x%02x%02x %016llx %016llx %016llx "
460 "%016llx", reason,
461 scsw_is_tm(&irb->scsw) ? "t" : "c",
462 scsw_cc(&irb->scsw), scsw_cstat(&irb->scsw),
463 scsw_dstat(&irb->scsw), sense[0], sense[1],
464 sense[2], sense[3]);
465 } else {
466 DBF_DEV_EVENT(DBF_EMERG, device, "%s",
467 "SORRY - NO VALID SENSE AVAILABLE\n");
468 }
469 }
470
471
472 static void
473 dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
474 struct irb *irb)
475 {
476 char *page;
477 struct ccw1 *act, *end, *last;
478 int len, sl, sct, count;
479
480 page = (char *) get_zeroed_page(GFP_ATOMIC);
481 if (page == NULL) {
482 DBF_DEV_EVENT(DBF_WARNING, device, "%s",
483 "No memory to dump sense data");
484 return;
485 }
486 len = sprintf(page, KERN_ERR PRINTK_HEADER
487 " I/O status report for device %s:\n",
488 dev_name(&device->cdev->dev));
489 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
490 " in req: %p CS: 0x%02X DS: 0x%02X\n", req,
491 irb->scsw.cmd.cstat, irb->scsw.cmd.dstat);
492 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
493 " device %s: Failing CCW: %p\n",
494 dev_name(&device->cdev->dev),
495 (void *) (addr_t) irb->scsw.cmd.cpa);
496 if (irb->esw.esw0.erw.cons) {
497 for (sl = 0; sl < 4; sl++) {
498 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
499 " Sense(hex) %2d-%2d:",
500 (8 * sl), ((8 * sl) + 7));
501
502 for (sct = 0; sct < 8; sct++) {
503 len += sprintf(page + len, " %02x",
504 irb->ecw[8 * sl + sct]);
505 }
506 len += sprintf(page + len, "\n");
507 }
508 } else {
509 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
510 " SORRY - NO VALID SENSE AVAILABLE\n");
511 }
512 printk(KERN_ERR "%s", page);
513
514 /* dump the Channel Program */
515 /* print first CCWs (maximum 8) */
516 act = req->cpaddr;
517 for (last = act; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++);
518 end = min(act + 8, last);
519 len = sprintf(page, KERN_ERR PRINTK_HEADER
520 " Related CP in req: %p\n", req);
521 while (act <= end) {
522 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
523 " CCW %p: %08X %08X DAT:",
524 act, ((int *) act)[0], ((int *) act)[1]);
525 for (count = 0; count < 32 && count < act->count;
526 count += sizeof(int))
527 len += sprintf(page + len, " %08X",
528 ((int *) (addr_t) act->cda)
529 [(count>>2)]);
530 len += sprintf(page + len, "\n");
531 act++;
532 }
533 printk(KERN_ERR "%s", page);
534
535
536 /* print failing CCW area */
537 len = 0;
538 if (act < ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2) {
539 act = ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2;
540 len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n");
541 }
542 end = min((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa + 2, last);
543 while (act <= end) {
544 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
545 " CCW %p: %08X %08X DAT:",
546 act, ((int *) act)[0], ((int *) act)[1]);
547 for (count = 0; count < 32 && count < act->count;
548 count += sizeof(int))
549 len += sprintf(page + len, " %08X",
550 ((int *) (addr_t) act->cda)
551 [(count>>2)]);
552 len += sprintf(page + len, "\n");
553 act++;
554 }
555
556 /* print last CCWs */
557 if (act < last - 2) {
558 act = last - 2;
559 len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n");
560 }
561 while (act <= last) {
562 len += sprintf(page + len, KERN_ERR PRINTK_HEADER
563 " CCW %p: %08X %08X DAT:",
564 act, ((int *) act)[0], ((int *) act)[1]);
565 for (count = 0; count < 32 && count < act->count;
566 count += sizeof(int))
567 len += sprintf(page + len, " %08X",
568 ((int *) (addr_t) act->cda)
569 [(count>>2)]);
570 len += sprintf(page + len, "\n");
571 act++;
572 }
573 if (len > 0)
574 printk(KERN_ERR "%s", page);
575 free_page((unsigned long) page);
576 }
577
578 /*
579 * max_blocks is dependent on the amount of storage that is available
580 * in the static io buffer for each device. Currently each device has
581 * 8192 bytes (=2 pages). For 64 bit one dasd_mchunkt_t structure has
582 * 24 bytes, the struct dasd_ccw_req has 136 bytes and each block can use
583 * up to 16 bytes (8 for the ccw and 8 for the idal pointer). In
584 * addition we have one define extent ccw + 16 bytes of data and a
585 * locate record ccw for each block (stupid devices!) + 16 bytes of data.
586 * That makes:
587 * (8192 - 24 - 136 - 8 - 16) / 40 = 200.2 blocks at maximum.
588 * We want to fit two into the available memory so that we can immediately
589 * start the next request if one finishes off. That makes 100.1 blocks
590 * for one request. Give a little safety and the result is 96.
591 */
592 static struct dasd_discipline dasd_fba_discipline = {
593 .owner = THIS_MODULE,
594 .name = "FBA ",
595 .ebcname = "FBA ",
596 .max_blocks = 96,
597 .check_device = dasd_fba_check_characteristics,
598 .do_analysis = dasd_fba_do_analysis,
599 .fill_geometry = dasd_fba_fill_geometry,
600 .start_IO = dasd_start_IO,
601 .term_IO = dasd_term_IO,
602 .handle_terminated_request = dasd_fba_handle_terminated_request,
603 .erp_action = dasd_fba_erp_action,
604 .erp_postaction = dasd_fba_erp_postaction,
605 .handle_unsolicited_interrupt = dasd_fba_handle_unsolicited_interrupt,
606 .build_cp = dasd_fba_build_cp,
607 .free_cp = dasd_fba_free_cp,
608 .dump_sense = dasd_fba_dump_sense,
609 .dump_sense_dbf = dasd_fba_dump_sense_dbf,
610 .fill_info = dasd_fba_fill_info,
611 };
612
613 static int __init
614 dasd_fba_init(void)
615 {
616 int ret;
617
618 ASCEBC(dasd_fba_discipline.ebcname, 4);
619 ret = ccw_driver_register(&dasd_fba_driver);
620 if (!ret)
621 wait_for_device_probe();
622
623 return ret;
624 }
625
626 static void __exit
627 dasd_fba_cleanup(void)
628 {
629 ccw_driver_unregister(&dasd_fba_driver);
630 }
631
632 module_init(dasd_fba_init);
633 module_exit(dasd_fba_cleanup);
Tomato firmware and modifications.