1/*-
2 * Copyright (c) 1999 Jonathan Lemon
3 * Copyright (c) 1999 Michael Smith
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
| 1/*-
2 * Copyright (c) 1999 Jonathan Lemon
3 * Copyright (c) 1999 Michael Smith
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
|
39#include <sys/bus.h>
40#include <sys/conf.h>
41#include <sys/devicestat.h>
42#include <sys/disk.h>
43
44#include <machine/bus.h>
45#include <machine/clock.h>
46#include <sys/rman.h>
47
48#include <dev/amr/amrio.h>
49#include <dev/amr/amrreg.h>
50#include <dev/amr/amrvar.h>
51
52#if 0
53#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
54#else
55#define debug(fmt, args...)
56#endif
57
58/* prototypes */
59static int amrd_probe(device_t dev);
60static int amrd_attach(device_t dev);
61static int amrd_detach(device_t dev);
62
63static d_open_t amrd_open;
64static d_close_t amrd_close;
65static d_strategy_t amrd_strategy;
66static d_ioctl_t amrd_ioctl;
67
68#define AMRD_BDEV_MAJOR 35
69#define AMRD_CDEV_MAJOR 133
70
71static struct cdevsw amrd_cdevsw = {
72 /* open */ amrd_open,
73 /* close */ amrd_close,
74 /* read */ physread,
75 /* write */ physwrite,
76 /* ioctl */ amrd_ioctl,
77 /* poll */ nopoll,
78 /* mmap */ nommap,
79 /* strategy */ amrd_strategy,
80 /* name */ "amrd",
81 /* maj */ AMRD_CDEV_MAJOR,
82 /* dump */ nodump,
83 /* psize */ nopsize,
84 /* flags */ D_DISK,
85 /* bmaj */ AMRD_BDEV_MAJOR
86};
87
88static devclass_t amrd_devclass;
89static struct cdevsw amrddisk_cdevsw;
90static int disks_registered = 0;
91
92static device_method_t amrd_methods[] = {
93 DEVMETHOD(device_probe, amrd_probe),
94 DEVMETHOD(device_attach, amrd_attach),
95 DEVMETHOD(device_detach, amrd_detach),
96 { 0, 0 }
97};
98
99static driver_t amrd_driver = {
100 "amrd",
101 amrd_methods,
102 sizeof(struct amrd_softc)
103};
104
105DRIVER_MODULE(amrd, amr, amrd_driver, amrd_devclass, 0, 0);
106
107static int
108amrd_open(dev_t dev, int flags, int fmt, struct proc *p)
109{
110 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
111 struct disklabel *label;
112
113 debug("called");
114
115 if (sc == NULL)
116 return (ENXIO);
117
118 /* controller not active? */
119 if (sc->amrd_controller->amr_state & AMR_STATE_SHUTDOWN)
120 return(ENXIO);
121
122 label = &sc->amrd_disk.d_label;
123 bzero(label, sizeof(*label));
124 label->d_type = DTYPE_SCSI;
125 label->d_secsize = AMR_BLKSIZE;
126 label->d_nsectors = sc->amrd_drive->al_sectors;
127 label->d_ntracks = sc->amrd_drive->al_heads;
128 label->d_ncylinders = sc->amrd_drive->al_cylinders;
129 label->d_secpercyl = sc->amrd_drive->al_sectors * sc->amrd_drive->al_heads;
130 label->d_secperunit = sc->amrd_drive->al_size;
131
132 sc->amrd_flags |= AMRD_OPEN;
133 return (0);
134}
135
136static int
137amrd_close(dev_t dev, int flags, int fmt, struct proc *p)
138{
139 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
140
141 debug("called");
142
143 if (sc == NULL)
144 return (ENXIO);
145 sc->amrd_flags &= ~AMRD_OPEN;
146 return (0);
147}
148
149static int
150amrd_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p)
151{
152 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
153 int error;
154
155 debug("called");
156
157 if (sc == NULL)
158 return (ENXIO);
159
160 if ((error = amr_submit_ioctl(sc->amrd_controller, sc->amrd_drive, cmd, addr, flag, p)) != ENOIOCTL) {
161 debug("amr_submit_ioctl returned %d\n", error);
162 return(error);
163 }
164 return (ENOTTY);
165}
166
167/*
168 * Read/write routine for a buffer. Finds the proper unit, range checks
169 * arguments, and schedules the transfer. Does not wait for the transfer
170 * to complete. Multi-page transfers are supported. All I/O requests must
171 * be a multiple of a sector in length.
172 */
173static void
174amrd_strategy(struct bio *bp)
175{
176 struct amrd_softc *sc = (struct amrd_softc *)bp->bio_dev->si_drv1;
177
178 debug("called to %s %d bytes at b_blkno 0x%x b_pblkno 0x%x",
179 (bp->b_flags & B_READ) ? "read" : "write", bp->bio_bcount, bp->bio_blkno, bp->bio_pblkno);
180
181 /* bogus disk? */
182 if (sc == NULL) {
183 bp->bio_error = EINVAL;
184 goto bad;
185 }
186
187#if 0
188 /* XXX may only be temporarily offline - sleep? */
189 if (sc->amrd_drive->ld_state == AMR_SYSD_OFFLINE) {
190 bp->bio_error = ENXIO;
191 goto bad;
192 }
193#endif
194
195 /* do-nothing operation */
196 if (bp->bio_bcount == 0)
197 goto done;
198
199 devstat_start_transaction(&sc->amrd_stats);
200 amr_submit_buf(sc->amrd_controller, bp);
201 return;
202
203 bad:
204 bp->bio_flags |= BIO_ERROR;
205
206 done:
207 /*
208 * Correctly set the buf to indicate a completed transfer
209 */
210 bp->bio_resid = bp->bio_bcount;
211 biodone(bp);
212 return;
213}
214
215void
216amrd_intr(void *data)
217{
218 struct bio *bp = (struct bio *)data;
219 struct amrd_softc *sc = (struct amrd_softc *)bp->bio_dev->si_drv1;
220
221 debug("called");
222
223 if (bp->bio_flags & BIO_ERROR) {
224 bp->bio_error = EIO;
225 debug("i/o error\n");
226 } else {
227#if 0
228 int i;
229 for (i = 0; i < 512; i += 16)
230 debug(" %04x %16D", i, bp->bio_data + i, " ");
231#endif
232 bp->bio_resid = 0;
233 }
234
235 devstat_end_transaction_bio(&sc->amrd_stats, bp);
236 biodone(bp);
237}
238
239static int
240amrd_probe(device_t dev)
241{
242
243 debug("called");
244
245 device_set_desc(dev, "MegaRAID logical drive");
246 return (0);
247}
248
249static int
250amrd_attach(device_t dev)
251{
252 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
253 device_t parent;
254 char *state;
255
256 debug("called");
257
258 parent = device_get_parent(dev);
259 sc->amrd_controller = (struct amr_softc *)device_get_softc(parent);
260 sc->amrd_unit = device_get_unit(dev);
261 sc->amrd_drive = device_get_ivars(dev);
262 sc->amrd_dev = dev;
263
264 switch(sc->amrd_drive->al_state) {
265 case AMRD_OFFLINE:
266 state = "offline";
267 break;
268 case AMRD_DEGRADED:
269 state = "degraded";
270 break;
271 case AMRD_OPTIMAL:
272 state = "optimal";
273 break;
274 case AMRD_DELETED:
275 state = "deleted";
276 break;
277 default:
278 state = "unknown state";
279 }
280
281 device_printf(dev, "%uMB (%u sectors) RAID %d (%s)\n",
282 sc->amrd_drive->al_size / ((1024 * 1024) / AMR_BLKSIZE),
283 sc->amrd_drive->al_size, sc->amrd_drive->al_properties & 0xf, state);
284
285 devstat_add_entry(&sc->amrd_stats, "amrd", sc->amrd_unit, AMR_BLKSIZE,
286 DEVSTAT_NO_ORDERED_TAGS,
287 DEVSTAT_TYPE_STORARRAY | DEVSTAT_TYPE_IF_OTHER,
288 DEVSTAT_PRIORITY_ARRAY);
289
290 sc->amrd_dev_t = disk_create(sc->amrd_unit, &sc->amrd_disk, 0, &amrd_cdevsw, &amrddisk_cdevsw);
291 sc->amrd_dev_t->si_drv1 = sc;
292 disks_registered++;
293
294 /* set maximum I/O size */
295 /* dsk->si_iosize_max = ??? */;
296
297 return (0);
298}
299
300static int
301amrd_detach(device_t dev)
302{
303 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
304
305 debug("called");
306
307 devstat_remove_entry(&sc->amrd_stats);
308 disk_destroy(sc->amrd_dev_t);
309 return(0);
310}
311
| 39#include <sys/bus.h>
40#include <sys/conf.h>
41#include <sys/devicestat.h>
42#include <sys/disk.h>
43
44#include <machine/bus.h>
45#include <machine/clock.h>
46#include <sys/rman.h>
47
48#include <dev/amr/amrio.h>
49#include <dev/amr/amrreg.h>
50#include <dev/amr/amrvar.h>
51
52#if 0
53#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
54#else
55#define debug(fmt, args...)
56#endif
57
58/* prototypes */
59static int amrd_probe(device_t dev);
60static int amrd_attach(device_t dev);
61static int amrd_detach(device_t dev);
62
63static d_open_t amrd_open;
64static d_close_t amrd_close;
65static d_strategy_t amrd_strategy;
66static d_ioctl_t amrd_ioctl;
67
68#define AMRD_BDEV_MAJOR 35
69#define AMRD_CDEV_MAJOR 133
70
71static struct cdevsw amrd_cdevsw = {
72 /* open */ amrd_open,
73 /* close */ amrd_close,
74 /* read */ physread,
75 /* write */ physwrite,
76 /* ioctl */ amrd_ioctl,
77 /* poll */ nopoll,
78 /* mmap */ nommap,
79 /* strategy */ amrd_strategy,
80 /* name */ "amrd",
81 /* maj */ AMRD_CDEV_MAJOR,
82 /* dump */ nodump,
83 /* psize */ nopsize,
84 /* flags */ D_DISK,
85 /* bmaj */ AMRD_BDEV_MAJOR
86};
87
88static devclass_t amrd_devclass;
89static struct cdevsw amrddisk_cdevsw;
90static int disks_registered = 0;
91
92static device_method_t amrd_methods[] = {
93 DEVMETHOD(device_probe, amrd_probe),
94 DEVMETHOD(device_attach, amrd_attach),
95 DEVMETHOD(device_detach, amrd_detach),
96 { 0, 0 }
97};
98
99static driver_t amrd_driver = {
100 "amrd",
101 amrd_methods,
102 sizeof(struct amrd_softc)
103};
104
105DRIVER_MODULE(amrd, amr, amrd_driver, amrd_devclass, 0, 0);
106
107static int
108amrd_open(dev_t dev, int flags, int fmt, struct proc *p)
109{
110 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
111 struct disklabel *label;
112
113 debug("called");
114
115 if (sc == NULL)
116 return (ENXIO);
117
118 /* controller not active? */
119 if (sc->amrd_controller->amr_state & AMR_STATE_SHUTDOWN)
120 return(ENXIO);
121
122 label = &sc->amrd_disk.d_label;
123 bzero(label, sizeof(*label));
124 label->d_type = DTYPE_SCSI;
125 label->d_secsize = AMR_BLKSIZE;
126 label->d_nsectors = sc->amrd_drive->al_sectors;
127 label->d_ntracks = sc->amrd_drive->al_heads;
128 label->d_ncylinders = sc->amrd_drive->al_cylinders;
129 label->d_secpercyl = sc->amrd_drive->al_sectors * sc->amrd_drive->al_heads;
130 label->d_secperunit = sc->amrd_drive->al_size;
131
132 sc->amrd_flags |= AMRD_OPEN;
133 return (0);
134}
135
136static int
137amrd_close(dev_t dev, int flags, int fmt, struct proc *p)
138{
139 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
140
141 debug("called");
142
143 if (sc == NULL)
144 return (ENXIO);
145 sc->amrd_flags &= ~AMRD_OPEN;
146 return (0);
147}
148
149static int
150amrd_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p)
151{
152 struct amrd_softc *sc = (struct amrd_softc *)dev->si_drv1;
153 int error;
154
155 debug("called");
156
157 if (sc == NULL)
158 return (ENXIO);
159
160 if ((error = amr_submit_ioctl(sc->amrd_controller, sc->amrd_drive, cmd, addr, flag, p)) != ENOIOCTL) {
161 debug("amr_submit_ioctl returned %d\n", error);
162 return(error);
163 }
164 return (ENOTTY);
165}
166
167/*
168 * Read/write routine for a buffer. Finds the proper unit, range checks
169 * arguments, and schedules the transfer. Does not wait for the transfer
170 * to complete. Multi-page transfers are supported. All I/O requests must
171 * be a multiple of a sector in length.
172 */
173static void
174amrd_strategy(struct bio *bp)
175{
176 struct amrd_softc *sc = (struct amrd_softc *)bp->bio_dev->si_drv1;
177
178 debug("called to %s %d bytes at b_blkno 0x%x b_pblkno 0x%x",
179 (bp->b_flags & B_READ) ? "read" : "write", bp->bio_bcount, bp->bio_blkno, bp->bio_pblkno);
180
181 /* bogus disk? */
182 if (sc == NULL) {
183 bp->bio_error = EINVAL;
184 goto bad;
185 }
186
187#if 0
188 /* XXX may only be temporarily offline - sleep? */
189 if (sc->amrd_drive->ld_state == AMR_SYSD_OFFLINE) {
190 bp->bio_error = ENXIO;
191 goto bad;
192 }
193#endif
194
195 /* do-nothing operation */
196 if (bp->bio_bcount == 0)
197 goto done;
198
199 devstat_start_transaction(&sc->amrd_stats);
200 amr_submit_buf(sc->amrd_controller, bp);
201 return;
202
203 bad:
204 bp->bio_flags |= BIO_ERROR;
205
206 done:
207 /*
208 * Correctly set the buf to indicate a completed transfer
209 */
210 bp->bio_resid = bp->bio_bcount;
211 biodone(bp);
212 return;
213}
214
215void
216amrd_intr(void *data)
217{
218 struct bio *bp = (struct bio *)data;
219 struct amrd_softc *sc = (struct amrd_softc *)bp->bio_dev->si_drv1;
220
221 debug("called");
222
223 if (bp->bio_flags & BIO_ERROR) {
224 bp->bio_error = EIO;
225 debug("i/o error\n");
226 } else {
227#if 0
228 int i;
229 for (i = 0; i < 512; i += 16)
230 debug(" %04x %16D", i, bp->bio_data + i, " ");
231#endif
232 bp->bio_resid = 0;
233 }
234
235 devstat_end_transaction_bio(&sc->amrd_stats, bp);
236 biodone(bp);
237}
238
239static int
240amrd_probe(device_t dev)
241{
242
243 debug("called");
244
245 device_set_desc(dev, "MegaRAID logical drive");
246 return (0);
247}
248
249static int
250amrd_attach(device_t dev)
251{
252 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
253 device_t parent;
254 char *state;
255
256 debug("called");
257
258 parent = device_get_parent(dev);
259 sc->amrd_controller = (struct amr_softc *)device_get_softc(parent);
260 sc->amrd_unit = device_get_unit(dev);
261 sc->amrd_drive = device_get_ivars(dev);
262 sc->amrd_dev = dev;
263
264 switch(sc->amrd_drive->al_state) {
265 case AMRD_OFFLINE:
266 state = "offline";
267 break;
268 case AMRD_DEGRADED:
269 state = "degraded";
270 break;
271 case AMRD_OPTIMAL:
272 state = "optimal";
273 break;
274 case AMRD_DELETED:
275 state = "deleted";
276 break;
277 default:
278 state = "unknown state";
279 }
280
281 device_printf(dev, "%uMB (%u sectors) RAID %d (%s)\n",
282 sc->amrd_drive->al_size / ((1024 * 1024) / AMR_BLKSIZE),
283 sc->amrd_drive->al_size, sc->amrd_drive->al_properties & 0xf, state);
284
285 devstat_add_entry(&sc->amrd_stats, "amrd", sc->amrd_unit, AMR_BLKSIZE,
286 DEVSTAT_NO_ORDERED_TAGS,
287 DEVSTAT_TYPE_STORARRAY | DEVSTAT_TYPE_IF_OTHER,
288 DEVSTAT_PRIORITY_ARRAY);
289
290 sc->amrd_dev_t = disk_create(sc->amrd_unit, &sc->amrd_disk, 0, &amrd_cdevsw, &amrddisk_cdevsw);
291 sc->amrd_dev_t->si_drv1 = sc;
292 disks_registered++;
293
294 /* set maximum I/O size */
295 /* dsk->si_iosize_max = ??? */;
296
297 return (0);
298}
299
300static int
301amrd_detach(device_t dev)
302{
303 struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
304
305 debug("called");
306
307 devstat_remove_entry(&sc->amrd_stats);
308 disk_destroy(sc->amrd_dev_t);
309 return(0);
310}
311
|