Device layer rollup commit.
[dragonfly.git] / sys / dev / raid / amr / amr_disk.c
CommitLineData
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1/*-
2 * Copyright (c) 1999 Jonathan Lemon
3 * Copyright (c) 1999, 2000 Michael Smith
4 * Copyright (c) 2000 BSDi
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 AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, 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 * Copyright (c) 2002 Eric Moore
29 * Copyright (c) 2002 LSI Logic Corporation
30 * All rights reserved.
31 *
32 * Redistribution and use in source and binary forms, with or without
33 * modification, are permitted provided that the following conditions
34 * are met:
35 * 1. Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * 2. Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in the
39 * documentation and/or other materials provided with the distribution.
40 * 3. The party using or redistributing the source code and binary forms
41 * agrees to the disclaimer below and the terms and conditions set forth
42 * herein.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 *
56 * $FreeBSD: src/sys/dev/amr/amr_disk.c,v 1.5.2.5 2002/12/20 15:12:04 emoore Exp $
e4c9c0c8 57 * $DragonFly: src/sys/dev/raid/amr/amr_disk.c,v 1.9 2004/05/19 22:52:46 dillon Exp $
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58 */
59
60/*
61 * Disk driver for AMI MegaRaid controllers
62 */
63
64#include <sys/param.h>
65#include <sys/systm.h>
66#include <sys/kernel.h>
67
1f2de5d4 68#include "amr_compat.h"
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69#include <sys/bus.h>
70#include <sys/conf.h>
71#include <sys/devicestat.h>
72#include <sys/disk.h>
73
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74#include <vm/vm.h>
75#include <vm/pmap.h>
76
984263bc 77#include <machine/bus.h>
510931cd 78#include <machine/md_var.h>
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79#include <sys/rman.h>
80
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81#include "amrio.h"
82#include "amrreg.h"
83#include "amrvar.h"
84#include "amr_tables.h"
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85
86/* prototypes */
87static int amrd_probe(device_t dev);
88static int amrd_attach(device_t dev);
89static int amrd_detach(device_t dev);
90
91static d_open_t amrd_open;
92static d_close_t amrd_close;
93static d_strategy_t amrd_strategy;
94static d_ioctl_t amrd_ioctl;
510931cd 95static d_dump_t amrd_dump;
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96
97#define AMRD_CDEV_MAJOR 133
98
99static struct cdevsw amrd_cdevsw = {
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100 /* name */ "amrd",
101 /* maj */ AMRD_CDEV_MAJOR,
102 /* flags */ D_DISK,
103 /* port */ NULL,
455fcd7e 104 /* clone */ NULL,
fabb8ceb 105
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106 /* open */ amrd_open,
107 /* close */ amrd_close,
108 /* read */ physread,
109 /* write */ physwrite,
110 /* ioctl */ amrd_ioctl,
111 /* poll */ nopoll,
112 /* mmap */ nommap,
113 /* strategy */ amrd_strategy,
510931cd 114 /* dump */ amrd_dump,
fabb8ceb 115 /* psize */ nopsize
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116};
117
118static devclass_t amrd_devclass;
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119
120static device_method_t amrd_methods[] = {
121 DEVMETHOD(device_probe, amrd_probe),
122 DEVMETHOD(device_attach, amrd_attach),
123 DEVMETHOD(device_detach, amrd_detach),
124 { 0, 0 }
125};
126
127static driver_t amrd_driver = {
128 "amrd",
129 amrd_methods,
130 sizeof(struct amrd_softc)
131};
132
133DRIVER_MODULE(amrd, amr, amrd_driver, amrd_devclass, 0, 0);
134
135static int
136amrd_open(dev_t dev, int flags, int fmt, d_thread_t *td)
137{
138 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
42cdd4ab 139#if defined(__DragonFly__) || __FreeBSD_version < 500000 /* old buf style */
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140 struct disklabel *label;
141#endif
142
143 debug_called(1);
144
145 if (sc == NULL)
146 return (ENXIO);
147
148 /* controller not active? */
149 if (sc->amrd_controller->amr_state & AMR_STATE_SHUTDOWN)
150 return(ENXIO);
151
42cdd4ab 152#if defined(__DragonFly__) || __FreeBSD_version < 500000 /* old buf style */
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153 label = &sc->amrd_disk.d_label;
154 bzero(label, sizeof(*label));
155 label->d_type = DTYPE_SCSI;
156 label->d_secsize = AMR_BLKSIZE;
157 label->d_nsectors = sc->amrd_drive->al_sectors;
158 label->d_ntracks = sc->amrd_drive->al_heads;
159 label->d_ncylinders = sc->amrd_drive->al_cylinders;
160 label->d_secpercyl = sc->amrd_drive->al_sectors * sc->amrd_drive->al_heads;
161 label->d_secperunit = sc->amrd_drive->al_size;
162#else
163 sc->amrd_disk.d_sectorsize = AMR_BLKSIZE;
164 sc->amrd_disk.d_mediasize = (off_t)sc->amrd_drive->al_size * AMR_BLKSIZE;
165 sc->amrd_disk.d_fwsectors = sc->amrd_drive->al_sectors;
166 sc->amrd_disk.d_fwheads = sc->amrd_drive->al_heads;
167#endif
168
169 sc->amrd_flags |= AMRD_OPEN;
170 return (0);
171}
172
173static int
174amrd_close(dev_t dev, int flags, int fmt, d_thread_t *td)
175{
176 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
177
178 debug_called(1);
179
180 if (sc == NULL)
181 return (ENXIO);
182 sc->amrd_flags &= ~AMRD_OPEN;
183 return (0);
184}
185
186static int
187amrd_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td)
188{
189
190 return (ENOTTY);
191}
192
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193
194/********************************************************************************
195 * System crashdump support
196 */
197int
e4c9c0c8 198amrd_dump(dev_t dev, u_int count, u_int blkno, u_int secsize)
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199{
200
201 struct amrd_softc *amrd_sc = (struct amrd_softc *)dev->si_drv1;
202 struct amr_softc *amr_sc;
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203 vm_paddr_t addr = 0;
204 long blkcnt;
205 int dumppages = MAXDUMPPGS;
206 int error = 0;
207 int driveno;
208 int i;
209
210 debug_called(1);
211
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212 amr_sc = (struct amr_softc *)amrd_sc->amrd_controller;
213
214 if (!amrd_sc || !amr_sc)
215 return(ENXIO);
216
217 blkcnt = howmany(PAGE_SIZE, secsize);
218
219 driveno = amrd_sc->amrd_drive - amr_sc->amr_drive;
220
221 while (count > 0) {
222 caddr_t va = NULL;
223
224 if ((count / blkcnt) < dumppages)
225 dumppages = count / blkcnt;
226
227 for (i = 0; i < dumppages; ++i) {
228 vm_paddr_t a = addr + (i * PAGE_SIZE);
229 if (is_physical_memory(a))
230 va = pmap_kenter_temporary(trunc_page(a), i);
231 else
232 va = pmap_kenter_temporary(trunc_page(0), i);
233 }
234
235 if ((error = amr_dump_blocks(amr_sc, driveno, blkno, (void *)va,
236 (PAGE_SIZE * dumppages) / AMR_BLKSIZE)) != 0)
237 return(error);
238
239 if (dumpstatus(addr, (off_t)count * DEV_BSIZE) < 0)
240 return(EINTR);
241
242 blkno += blkcnt * dumppages;
243 count -= blkcnt * dumppages;
244 addr += PAGE_SIZE * dumppages;
245 }
246 return (0);
247}
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248/*
249 * Read/write routine for a buffer. Finds the proper unit, range checks
250 * arguments, and schedules the transfer. Does not wait for the transfer
251 * to complete. Multi-page transfers are supported. All I/O requests must
252 * be a multiple of a sector in length.
253 */
254static void
255amrd_strategy(struct bio *bio)
256{
257 struct amrd_softc *sc = (struct amrd_softc *)bio->bio_dev->si_drv1;
258
259 /* bogus disk? */
260 if (sc == NULL) {
261 bio->bio_error = EINVAL;
262 goto bad;
263 }
264
265 devstat_start_transaction(&sc->amrd_stats);
266 amr_submit_bio(sc->amrd_controller, bio);
267 return;
268
269 bad:
270 bio->bio_flags |= BIO_ERROR;
271
272 /*
273 * Correctly set the buf to indicate a completed transfer
274 */
275 bio->bio_resid = bio->bio_bcount;
276 biodone(bio);
277 return;
278}
279
280void
281amrd_intr(void *data)
282{
283 struct bio *bio = (struct bio *)data;
284 struct amrd_softc *sc = (struct amrd_softc *)bio->bio_dev->si_drv1;
285
286 debug_called(2);
287
288 if (bio->bio_flags & BIO_ERROR) {
289 bio->bio_error = EIO;
290 debug(1, "i/o error\n");
291 } else {
292 bio->bio_resid = 0;
293 }
294
295 AMR_BIO_FINISH(bio);
296}
297
298static int
299amrd_probe(device_t dev)
300{
301
302 debug_called(1);
303
304 device_set_desc(dev, "LSILogic MegaRAID logical drive");
305 return (0);
306}
307
308static int
309amrd_attach(device_t dev)
310{
311 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
312 device_t parent;
313
314 debug_called(1);
315
316 parent = device_get_parent(dev);
317 sc->amrd_controller = (struct amr_softc *)device_get_softc(parent);
318 sc->amrd_unit = device_get_unit(dev);
319 sc->amrd_drive = device_get_ivars(dev);
320 sc->amrd_dev = dev;
321
322 device_printf(dev, "%uMB (%u sectors) RAID %d (%s)\n",
323 sc->amrd_drive->al_size / ((1024 * 1024) / AMR_BLKSIZE),
324 sc->amrd_drive->al_size, sc->amrd_drive->al_properties & AMR_DRV_RAID_MASK,
325 amr_describe_code(amr_table_drvstate, AMR_DRV_CURSTATE(sc->amrd_drive->al_state)));
326
327 devstat_add_entry(&sc->amrd_stats, "amrd", sc->amrd_unit, AMR_BLKSIZE,
328 DEVSTAT_NO_ORDERED_TAGS,
329 DEVSTAT_TYPE_STORARRAY | DEVSTAT_TYPE_IF_OTHER,
330 DEVSTAT_PRIORITY_ARRAY);
331
335dda38 332 sc->amrd_dev_t = disk_create(sc->amrd_unit, &sc->amrd_disk, 0, &amrd_cdevsw);
984263bc 333 sc->amrd_dev_t->si_drv1 = sc;
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334
335 /* set maximum I/O size to match the maximum s/g size */
336 sc->amrd_dev_t->si_iosize_max = (AMR_NSEG - 1) * PAGE_SIZE;
337
338 return (0);
339}
340
341static int
342amrd_detach(device_t dev)
343{
344 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
345
346 debug_called(1);
347
348 if (sc->amrd_flags & AMRD_OPEN)
349 return(EBUSY);
350
351 devstat_remove_entry(&sc->amrd_stats);
335dda38 352 disk_destroy(&sc->amrd_disk);
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353 return(0);
354}
355