1/*
2 * Implementation of SCSI Processor Target Peripheral driver for CAM.
3 *
4 * Copyright (c) 1998 Justin T. Gibbs.
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 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
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 FOR
20 * 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 *
| 1/*
2 * Implementation of SCSI Processor Target Peripheral driver for CAM.
3 *
4 * Copyright (c) 1998 Justin T. Gibbs.
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 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
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 FOR
20 * 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 * $FreeBSD: head/sys/cam/scsi/scsi_pt.c 58934 2000-04-02 15:24:56Z phk $
| 28 * $FreeBSD: head/sys/cam/scsi/scsi_pt.c 59249 2000-04-15 05:54:02Z phk $
|
29 */
30
31#include <sys/param.h>
32#include <sys/queue.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/types.h>
36#include <sys/buf.h>
37#include <sys/devicestat.h>
38#include <sys/malloc.h>
39#include <sys/conf.h>
40#include <sys/ptio.h>
41
42#include <cam/cam.h>
43#include <cam/cam_ccb.h>
44#include <cam/cam_extend.h>
45#include <cam/cam_periph.h>
46#include <cam/cam_xpt_periph.h>
47#include <cam/cam_debug.h>
48
49#include <cam/scsi/scsi_all.h>
50#include <cam/scsi/scsi_message.h>
51#include <cam/scsi/scsi_pt.h>
52
53#include "opt_pt.h"
54
55typedef enum {
56 PT_STATE_PROBE,
57 PT_STATE_NORMAL
58} pt_state;
59
60typedef enum {
61 PT_FLAG_NONE = 0x00,
62 PT_FLAG_OPEN = 0x01,
63 PT_FLAG_DEVICE_INVALID = 0x02,
64 PT_FLAG_RETRY_UA = 0x04
65} pt_flags;
66
67typedef enum {
68 PT_CCB_BUFFER_IO = 0x01,
69 PT_CCB_WAITING = 0x02,
70 PT_CCB_RETRY_UA = 0x04,
71 PT_CCB_BUFFER_IO_UA = PT_CCB_BUFFER_IO|PT_CCB_RETRY_UA
72} pt_ccb_state;
73
74/* Offsets into our private area for storing information */
75#define ccb_state ppriv_field0
76#define ccb_bp ppriv_ptr1
77
78struct pt_softc {
| 29 */
30
31#include <sys/param.h>
32#include <sys/queue.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/types.h>
36#include <sys/buf.h>
37#include <sys/devicestat.h>
38#include <sys/malloc.h>
39#include <sys/conf.h>
40#include <sys/ptio.h>
41
42#include <cam/cam.h>
43#include <cam/cam_ccb.h>
44#include <cam/cam_extend.h>
45#include <cam/cam_periph.h>
46#include <cam/cam_xpt_periph.h>
47#include <cam/cam_debug.h>
48
49#include <cam/scsi/scsi_all.h>
50#include <cam/scsi/scsi_message.h>
51#include <cam/scsi/scsi_pt.h>
52
53#include "opt_pt.h"
54
55typedef enum {
56 PT_STATE_PROBE,
57 PT_STATE_NORMAL
58} pt_state;
59
60typedef enum {
61 PT_FLAG_NONE = 0x00,
62 PT_FLAG_OPEN = 0x01,
63 PT_FLAG_DEVICE_INVALID = 0x02,
64 PT_FLAG_RETRY_UA = 0x04
65} pt_flags;
66
67typedef enum {
68 PT_CCB_BUFFER_IO = 0x01,
69 PT_CCB_WAITING = 0x02,
70 PT_CCB_RETRY_UA = 0x04,
71 PT_CCB_BUFFER_IO_UA = PT_CCB_BUFFER_IO|PT_CCB_RETRY_UA
72} pt_ccb_state;
73
74/* Offsets into our private area for storing information */
75#define ccb_state ppriv_field0
76#define ccb_bp ppriv_ptr1
77
78struct pt_softc {
|
79 struct buf_queue_head buf_queue;
| 79 struct bio_queue_head bio_queue;
|
80 struct devstat device_stats;
81 LIST_HEAD(, ccb_hdr) pending_ccbs;
82 pt_state state;
83 pt_flags flags;
84 union ccb saved_ccb;
85 int io_timeout;
86 dev_t dev;
87};
88
89static d_open_t ptopen;
90static d_close_t ptclose;
91static d_strategy_t ptstrategy;
92static periph_init_t ptinit;
93static void ptasync(void *callback_arg, u_int32_t code,
94 struct cam_path *path, void *arg);
95static periph_ctor_t ptctor;
96static periph_oninv_t ptoninvalidate;
97static periph_dtor_t ptdtor;
98static periph_start_t ptstart;
99static void ptdone(struct cam_periph *periph,
100 union ccb *done_ccb);
101static d_ioctl_t ptioctl;
102static int pterror(union ccb *ccb, u_int32_t cam_flags,
103 u_int32_t sense_flags);
104
105void scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
106 void (*cbfcnp)(struct cam_periph *, union ccb *),
107 u_int tag_action, int readop, u_int byte2,
108 u_int32_t xfer_len, u_int8_t *data_ptr,
109 u_int8_t sense_len, u_int32_t timeout);
110
111static struct periph_driver ptdriver =
112{
113 ptinit, "pt",
114 TAILQ_HEAD_INITIALIZER(ptdriver.units), /* generation */ 0
115};
116
117DATA_SET(periphdriver_set, ptdriver);
118
119#define PT_CDEV_MAJOR 61
120
121static struct cdevsw pt_cdevsw = {
122 /* open */ ptopen,
123 /* close */ ptclose,
124 /* read */ physread,
125 /* write */ physwrite,
126 /* ioctl */ ptioctl,
127 /* poll */ nopoll,
128 /* mmap */ nommap,
129 /* strategy */ ptstrategy,
130 /* name */ "pt",
131 /* maj */ PT_CDEV_MAJOR,
132 /* dump */ nodump,
133 /* psize */ nopsize,
134 /* flags */ 0,
135 /* bmaj */ -1
136};
137
138static struct extend_array *ptperiphs;
139
140#ifndef SCSI_PT_DEFAULT_TIMEOUT
141#define SCSI_PT_DEFAULT_TIMEOUT 60
142#endif
143
144static int
145ptopen(dev_t dev, int flags, int fmt, struct proc *p)
146{
147 struct cam_periph *periph;
148 struct pt_softc *softc;
149 int unit;
150 int error;
151 int s;
152
153 unit = minor(dev);
154 periph = cam_extend_get(ptperiphs, unit);
155 if (periph == NULL)
156 return (ENXIO);
157
158 softc = (struct pt_softc *)periph->softc;
159
160 s = splsoftcam();
161 if (softc->flags & PT_FLAG_DEVICE_INVALID) {
162 splx(s);
163 return(ENXIO);
164 }
165
166 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
167 ("ptopen: dev=%s (unit %d)\n", devtoname(dev), unit));
168
169 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
170 splx(s);
171 return (error); /* error code from tsleep */
172 }
173
174 splx(s);
175
176 if ((softc->flags & PT_FLAG_OPEN) == 0) {
177 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
178 error = ENXIO;
179 else
180 softc->flags |= PT_FLAG_OPEN;
181 } else
182 error = EBUSY;
183
184 cam_periph_unlock(periph);
185 return (error);
186}
187
188static int
189ptclose(dev_t dev, int flag, int fmt, struct proc *p)
190{
191 struct cam_periph *periph;
192 struct pt_softc *softc;
193 int unit;
194 int error;
195
196 unit = minor(dev);
197 periph = cam_extend_get(ptperiphs, unit);
198 if (periph == NULL)
199 return (ENXIO);
200
201 softc = (struct pt_softc *)periph->softc;
202
203 if ((error = cam_periph_lock(periph, PRIBIO)) != 0)
204 return (error); /* error code from tsleep */
205
206 softc->flags &= ~PT_FLAG_OPEN;
207 cam_periph_unlock(periph);
208 cam_periph_release(periph);
209 return (0);
210}
211
212/*
213 * Actually translate the requested transfer into one the physical driver
214 * can understand. The transfer is described by a buf and will include
215 * only one physical transfer.
216 */
217static void
| 80 struct devstat device_stats;
81 LIST_HEAD(, ccb_hdr) pending_ccbs;
82 pt_state state;
83 pt_flags flags;
84 union ccb saved_ccb;
85 int io_timeout;
86 dev_t dev;
87};
88
89static d_open_t ptopen;
90static d_close_t ptclose;
91static d_strategy_t ptstrategy;
92static periph_init_t ptinit;
93static void ptasync(void *callback_arg, u_int32_t code,
94 struct cam_path *path, void *arg);
95static periph_ctor_t ptctor;
96static periph_oninv_t ptoninvalidate;
97static periph_dtor_t ptdtor;
98static periph_start_t ptstart;
99static void ptdone(struct cam_periph *periph,
100 union ccb *done_ccb);
101static d_ioctl_t ptioctl;
102static int pterror(union ccb *ccb, u_int32_t cam_flags,
103 u_int32_t sense_flags);
104
105void scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
106 void (*cbfcnp)(struct cam_periph *, union ccb *),
107 u_int tag_action, int readop, u_int byte2,
108 u_int32_t xfer_len, u_int8_t *data_ptr,
109 u_int8_t sense_len, u_int32_t timeout);
110
111static struct periph_driver ptdriver =
112{
113 ptinit, "pt",
114 TAILQ_HEAD_INITIALIZER(ptdriver.units), /* generation */ 0
115};
116
117DATA_SET(periphdriver_set, ptdriver);
118
119#define PT_CDEV_MAJOR 61
120
121static struct cdevsw pt_cdevsw = {
122 /* open */ ptopen,
123 /* close */ ptclose,
124 /* read */ physread,
125 /* write */ physwrite,
126 /* ioctl */ ptioctl,
127 /* poll */ nopoll,
128 /* mmap */ nommap,
129 /* strategy */ ptstrategy,
130 /* name */ "pt",
131 /* maj */ PT_CDEV_MAJOR,
132 /* dump */ nodump,
133 /* psize */ nopsize,
134 /* flags */ 0,
135 /* bmaj */ -1
136};
137
138static struct extend_array *ptperiphs;
139
140#ifndef SCSI_PT_DEFAULT_TIMEOUT
141#define SCSI_PT_DEFAULT_TIMEOUT 60
142#endif
143
144static int
145ptopen(dev_t dev, int flags, int fmt, struct proc *p)
146{
147 struct cam_periph *periph;
148 struct pt_softc *softc;
149 int unit;
150 int error;
151 int s;
152
153 unit = minor(dev);
154 periph = cam_extend_get(ptperiphs, unit);
155 if (periph == NULL)
156 return (ENXIO);
157
158 softc = (struct pt_softc *)periph->softc;
159
160 s = splsoftcam();
161 if (softc->flags & PT_FLAG_DEVICE_INVALID) {
162 splx(s);
163 return(ENXIO);
164 }
165
166 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
167 ("ptopen: dev=%s (unit %d)\n", devtoname(dev), unit));
168
169 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
170 splx(s);
171 return (error); /* error code from tsleep */
172 }
173
174 splx(s);
175
176 if ((softc->flags & PT_FLAG_OPEN) == 0) {
177 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
178 error = ENXIO;
179 else
180 softc->flags |= PT_FLAG_OPEN;
181 } else
182 error = EBUSY;
183
184 cam_periph_unlock(periph);
185 return (error);
186}
187
188static int
189ptclose(dev_t dev, int flag, int fmt, struct proc *p)
190{
191 struct cam_periph *periph;
192 struct pt_softc *softc;
193 int unit;
194 int error;
195
196 unit = minor(dev);
197 periph = cam_extend_get(ptperiphs, unit);
198 if (periph == NULL)
199 return (ENXIO);
200
201 softc = (struct pt_softc *)periph->softc;
202
203 if ((error = cam_periph_lock(periph, PRIBIO)) != 0)
204 return (error); /* error code from tsleep */
205
206 softc->flags &= ~PT_FLAG_OPEN;
207 cam_periph_unlock(periph);
208 cam_periph_release(periph);
209 return (0);
210}
211
212/*
213 * Actually translate the requested transfer into one the physical driver
214 * can understand. The transfer is described by a buf and will include
215 * only one physical transfer.
216 */
217static void
|
218ptstrategy(struct buf *bp)
| 218ptstrategy(struct bio *bp)
|
219{
220 struct cam_periph *periph;
221 struct pt_softc *softc;
222 u_int unit;
223 int s;
224
| 219{
220 struct cam_periph *periph;
221 struct pt_softc *softc;
222 u_int unit;
223 int s;
224
|
225 unit = minor(bp->b_dev);
| 225 unit = minor(bp->bio_dev);
|
226 periph = cam_extend_get(ptperiphs, unit);
227 if (periph == NULL) {
| 226 periph = cam_extend_get(ptperiphs, unit);
227 if (periph == NULL) {
|
228 bp->b_error = ENXIO;
| 228 bp->bio_error = ENXIO;
|
229 goto bad;
230 }
231 softc = (struct pt_softc *)periph->softc;
232
233 /*
234 * Mask interrupts so that the pack cannot be invalidated until
235 * after we are in the queue. Otherwise, we might not properly
236 * clean up one of the buffers.
237 */
238 s = splbio();
239
240 /*
241 * If the device has been made invalid, error out
242 */
243 if ((softc->flags & PT_FLAG_DEVICE_INVALID)) {
244 splx(s);
| 229 goto bad;
230 }
231 softc = (struct pt_softc *)periph->softc;
232
233 /*
234 * Mask interrupts so that the pack cannot be invalidated until
235 * after we are in the queue. Otherwise, we might not properly
236 * clean up one of the buffers.
237 */
238 s = splbio();
239
240 /*
241 * If the device has been made invalid, error out
242 */
243 if ((softc->flags & PT_FLAG_DEVICE_INVALID)) {
244 splx(s);
|
245 bp->b_error = ENXIO;
| 245 bp->bio_error = ENXIO;
|
246 goto bad;
247 }
248
249 /*
250 * Place it in the queue of disk activities for this disk
251 */
| 246 goto bad;
247 }
248
249 /*
250 * Place it in the queue of disk activities for this disk
251 */
|
252 bufq_insert_tail(&softc->buf_queue, bp);
| 252 bioq_insert_tail(&softc->bio_queue, bp);
|
253
254 splx(s);
255
256 /*
257 * Schedule ourselves for performing the work.
258 */
259 xpt_schedule(periph, /* XXX priority */1);
260
261 return;
262bad:
| 253
254 splx(s);
255
256 /*
257 * Schedule ourselves for performing the work.
258 */
259 xpt_schedule(periph, /* XXX priority */1);
260
261 return;
262bad:
|
263 bp->b_ioflags |= BIO_ERROR;
| 263 bp->bio_flags |= BIO_ERROR;
|
264
265 /*
266 * Correctly set the buf to indicate a completed xfer
267 */
| 264
265 /*
266 * Correctly set the buf to indicate a completed xfer
267 */
|
268 bp->b_resid = bp->b_bcount;
| 268 bp->bio_resid = bp->bio_bcount;
|
269 biodone(bp);
270}
271
272static void
273ptinit(void)
274{
275 cam_status status;
276 struct cam_path *path;
277
278 /*
279 * Create our extend array for storing the devices we attach to.
280 */
281 ptperiphs = cam_extend_new();
282 if (ptperiphs == NULL) {
283 printf("pt: Failed to alloc extend array!\n");
284 return;
285 }
286
287 /*
288 * Install a global async callback. This callback will
289 * receive async callbacks like "new device found".
290 */
291 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
292 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
293
294 if (status == CAM_REQ_CMP) {
295 struct ccb_setasync csa;
296
297 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
298 csa.ccb_h.func_code = XPT_SASYNC_CB;
299 csa.event_enable = AC_FOUND_DEVICE;
300 csa.callback = ptasync;
301 csa.callback_arg = NULL;
302 xpt_action((union ccb *)&csa);
303 status = csa.ccb_h.status;
304 xpt_free_path(path);
305 }
306
307 if (status != CAM_REQ_CMP) {
308 printf("pt: Failed to attach master async callback "
309 "due to status 0x%x!\n", status);
310 }
311}
312
313static cam_status
314ptctor(struct cam_periph *periph, void *arg)
315{
316 struct pt_softc *softc;
317 struct ccb_setasync csa;
318 struct ccb_getdev *cgd;
319
320 cgd = (struct ccb_getdev *)arg;
321 if (periph == NULL) {
322 printf("ptregister: periph was NULL!!\n");
323 return(CAM_REQ_CMP_ERR);
324 }
325
326 if (cgd == NULL) {
327 printf("ptregister: no getdev CCB, can't register device\n");
328 return(CAM_REQ_CMP_ERR);
329 }
330
331 softc = (struct pt_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
332
333 if (softc == NULL) {
334 printf("daregister: Unable to probe new device. "
335 "Unable to allocate softc\n");
336 return(CAM_REQ_CMP_ERR);
337 }
338
339 bzero(softc, sizeof(*softc));
340 LIST_INIT(&softc->pending_ccbs);
341 softc->state = PT_STATE_NORMAL;
| 269 biodone(bp);
270}
271
272static void
273ptinit(void)
274{
275 cam_status status;
276 struct cam_path *path;
277
278 /*
279 * Create our extend array for storing the devices we attach to.
280 */
281 ptperiphs = cam_extend_new();
282 if (ptperiphs == NULL) {
283 printf("pt: Failed to alloc extend array!\n");
284 return;
285 }
286
287 /*
288 * Install a global async callback. This callback will
289 * receive async callbacks like "new device found".
290 */
291 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
292 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
293
294 if (status == CAM_REQ_CMP) {
295 struct ccb_setasync csa;
296
297 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
298 csa.ccb_h.func_code = XPT_SASYNC_CB;
299 csa.event_enable = AC_FOUND_DEVICE;
300 csa.callback = ptasync;
301 csa.callback_arg = NULL;
302 xpt_action((union ccb *)&csa);
303 status = csa.ccb_h.status;
304 xpt_free_path(path);
305 }
306
307 if (status != CAM_REQ_CMP) {
308 printf("pt: Failed to attach master async callback "
309 "due to status 0x%x!\n", status);
310 }
311}
312
313static cam_status
314ptctor(struct cam_periph *periph, void *arg)
315{
316 struct pt_softc *softc;
317 struct ccb_setasync csa;
318 struct ccb_getdev *cgd;
319
320 cgd = (struct ccb_getdev *)arg;
321 if (periph == NULL) {
322 printf("ptregister: periph was NULL!!\n");
323 return(CAM_REQ_CMP_ERR);
324 }
325
326 if (cgd == NULL) {
327 printf("ptregister: no getdev CCB, can't register device\n");
328 return(CAM_REQ_CMP_ERR);
329 }
330
331 softc = (struct pt_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
332
333 if (softc == NULL) {
334 printf("daregister: Unable to probe new device. "
335 "Unable to allocate softc\n");
336 return(CAM_REQ_CMP_ERR);
337 }
338
339 bzero(softc, sizeof(*softc));
340 LIST_INIT(&softc->pending_ccbs);
341 softc->state = PT_STATE_NORMAL;
|
342 bufq_init(&softc->buf_queue);
| 342 bioq_init(&softc->bio_queue);
|
343
344 softc->io_timeout = SCSI_PT_DEFAULT_TIMEOUT * 1000;
345
346 periph->softc = softc;
347
348 cam_extend_set(ptperiphs, periph->unit_number, periph);
349
350 devstat_add_entry(&softc->device_stats, "pt",
351 periph->unit_number, 0,
352 DEVSTAT_NO_BLOCKSIZE,
353 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
354 DEVSTAT_PRIORITY_OTHER);
355
356 softc->dev = make_dev(&pt_cdevsw, periph->unit_number, UID_ROOT,
357 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
358 periph->unit_number);
359 /*
360 * Add async callbacks for bus reset and
361 * bus device reset calls. I don't bother
362 * checking if this fails as, in most cases,
363 * the system will function just fine without
364 * them and the only alternative would be to
365 * not attach the device on failure.
366 */
367 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
368 csa.ccb_h.func_code = XPT_SASYNC_CB;
369 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
370 csa.callback = ptasync;
371 csa.callback_arg = periph;
372 xpt_action((union ccb *)&csa);
373
374 /* Tell the user we've attached to the device */
375 xpt_announce_periph(periph, NULL);
376
377 return(CAM_REQ_CMP);
378}
379
380static void
381ptoninvalidate(struct cam_periph *periph)
382{
383 int s;
384 struct pt_softc *softc;
| 343
344 softc->io_timeout = SCSI_PT_DEFAULT_TIMEOUT * 1000;
345
346 periph->softc = softc;
347
348 cam_extend_set(ptperiphs, periph->unit_number, periph);
349
350 devstat_add_entry(&softc->device_stats, "pt",
351 periph->unit_number, 0,
352 DEVSTAT_NO_BLOCKSIZE,
353 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
354 DEVSTAT_PRIORITY_OTHER);
355
356 softc->dev = make_dev(&pt_cdevsw, periph->unit_number, UID_ROOT,
357 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
358 periph->unit_number);
359 /*
360 * Add async callbacks for bus reset and
361 * bus device reset calls. I don't bother
362 * checking if this fails as, in most cases,
363 * the system will function just fine without
364 * them and the only alternative would be to
365 * not attach the device on failure.
366 */
367 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
368 csa.ccb_h.func_code = XPT_SASYNC_CB;
369 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
370 csa.callback = ptasync;
371 csa.callback_arg = periph;
372 xpt_action((union ccb *)&csa);
373
374 /* Tell the user we've attached to the device */
375 xpt_announce_periph(periph, NULL);
376
377 return(CAM_REQ_CMP);
378}
379
380static void
381ptoninvalidate(struct cam_periph *periph)
382{
383 int s;
384 struct pt_softc *softc;
|
385 struct buf *q_bp;
| 385 struct bio *q_bp;
|
386 struct ccb_setasync csa;
387
388 softc = (struct pt_softc *)periph->softc;
389
390 /*
391 * De-register any async callbacks.
392 */
393 xpt_setup_ccb(&csa.ccb_h, periph->path,
394 /* priority */ 5);
395 csa.ccb_h.func_code = XPT_SASYNC_CB;
396 csa.event_enable = 0;
397 csa.callback = ptasync;
398 csa.callback_arg = periph;
399 xpt_action((union ccb *)&csa);
400
401 softc->flags |= PT_FLAG_DEVICE_INVALID;
402
403 /*
404 * Although the oninvalidate() routines are always called at
405 * splsoftcam, we need to be at splbio() here to keep the buffer
406 * queue from being modified while we traverse it.
407 */
408 s = splbio();
409
410 /*
411 * Return all queued I/O with ENXIO.
412 * XXX Handle any transactions queued to the card
413 * with XPT_ABORT_CCB.
414 */
| 386 struct ccb_setasync csa;
387
388 softc = (struct pt_softc *)periph->softc;
389
390 /*
391 * De-register any async callbacks.
392 */
393 xpt_setup_ccb(&csa.ccb_h, periph->path,
394 /* priority */ 5);
395 csa.ccb_h.func_code = XPT_SASYNC_CB;
396 csa.event_enable = 0;
397 csa.callback = ptasync;
398 csa.callback_arg = periph;
399 xpt_action((union ccb *)&csa);
400
401 softc->flags |= PT_FLAG_DEVICE_INVALID;
402
403 /*
404 * Although the oninvalidate() routines are always called at
405 * splsoftcam, we need to be at splbio() here to keep the buffer
406 * queue from being modified while we traverse it.
407 */
408 s = splbio();
409
410 /*
411 * Return all queued I/O with ENXIO.
412 * XXX Handle any transactions queued to the card
413 * with XPT_ABORT_CCB.
414 */
|
415 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
416 bufq_remove(&softc->buf_queue, q_bp);
417 q_bp->b_resid = q_bp->b_bcount;
418 q_bp->b_error = ENXIO;
419 q_bp->b_ioflags |= BIO_ERROR;
| 415 while ((q_bp = bioq_first(&softc->bio_queue)) != NULL){
416 bioq_remove(&softc->bio_queue, q_bp);
417 q_bp->bio_resid = q_bp->bio_bcount;
418 q_bp->bio_error = ENXIO;
419 q_bp->bio_flags |= BIO_ERROR;
|
420 biodone(q_bp);
421 }
422
423 splx(s);
424
425 xpt_print_path(periph->path);
426 printf("lost device\n");
427}
428
429static void
430ptdtor(struct cam_periph *periph)
431{
432 struct pt_softc *softc;
433
434 softc = (struct pt_softc *)periph->softc;
435
436 devstat_remove_entry(&softc->device_stats);
437
438 destroy_dev(softc->dev);
439
440 cam_extend_release(ptperiphs, periph->unit_number);
441 xpt_print_path(periph->path);
442 printf("removing device entry\n");
443 free(softc, M_DEVBUF);
444}
445
446static void
447ptasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
448{
449 struct cam_periph *periph;
450
451 periph = (struct cam_periph *)callback_arg;
452 switch (code) {
453 case AC_FOUND_DEVICE:
454 {
455 struct ccb_getdev *cgd;
456 cam_status status;
457
458 cgd = (struct ccb_getdev *)arg;
459
460 if (SID_TYPE(&cgd->inq_data) != T_PROCESSOR)
461 break;
462
463 /*
464 * Allocate a peripheral instance for
465 * this device and start the probe
466 * process.
467 */
468 status = cam_periph_alloc(ptctor, ptoninvalidate, ptdtor,
469 ptstart, "pt", CAM_PERIPH_BIO,
470 cgd->ccb_h.path, ptasync,
471 AC_FOUND_DEVICE, cgd);
472
473 if (status != CAM_REQ_CMP
474 && status != CAM_REQ_INPROG)
475 printf("ptasync: Unable to attach to new device "
476 "due to status 0x%x\n", status);
477 break;
478 }
479 case AC_SENT_BDR:
480 case AC_BUS_RESET:
481 {
482 struct pt_softc *softc;
483 struct ccb_hdr *ccbh;
484 int s;
485
486 softc = (struct pt_softc *)periph->softc;
487 s = splsoftcam();
488 /*
489 * Don't fail on the expected unit attention
490 * that will occur.
491 */
492 softc->flags |= PT_FLAG_RETRY_UA;
493 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
494 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
495 ccbh->ccb_state |= PT_CCB_RETRY_UA;
496 splx(s);
497 /* FALLTHROUGH */
498 }
499 default:
500 cam_periph_async(periph, code, path, arg);
501 break;
502 }
503}
504
505static void
506ptstart(struct cam_periph *periph, union ccb *start_ccb)
507{
508 struct pt_softc *softc;
| 420 biodone(q_bp);
421 }
422
423 splx(s);
424
425 xpt_print_path(periph->path);
426 printf("lost device\n");
427}
428
429static void
430ptdtor(struct cam_periph *periph)
431{
432 struct pt_softc *softc;
433
434 softc = (struct pt_softc *)periph->softc;
435
436 devstat_remove_entry(&softc->device_stats);
437
438 destroy_dev(softc->dev);
439
440 cam_extend_release(ptperiphs, periph->unit_number);
441 xpt_print_path(periph->path);
442 printf("removing device entry\n");
443 free(softc, M_DEVBUF);
444}
445
446static void
447ptasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
448{
449 struct cam_periph *periph;
450
451 periph = (struct cam_periph *)callback_arg;
452 switch (code) {
453 case AC_FOUND_DEVICE:
454 {
455 struct ccb_getdev *cgd;
456 cam_status status;
457
458 cgd = (struct ccb_getdev *)arg;
459
460 if (SID_TYPE(&cgd->inq_data) != T_PROCESSOR)
461 break;
462
463 /*
464 * Allocate a peripheral instance for
465 * this device and start the probe
466 * process.
467 */
468 status = cam_periph_alloc(ptctor, ptoninvalidate, ptdtor,
469 ptstart, "pt", CAM_PERIPH_BIO,
470 cgd->ccb_h.path, ptasync,
471 AC_FOUND_DEVICE, cgd);
472
473 if (status != CAM_REQ_CMP
474 && status != CAM_REQ_INPROG)
475 printf("ptasync: Unable to attach to new device "
476 "due to status 0x%x\n", status);
477 break;
478 }
479 case AC_SENT_BDR:
480 case AC_BUS_RESET:
481 {
482 struct pt_softc *softc;
483 struct ccb_hdr *ccbh;
484 int s;
485
486 softc = (struct pt_softc *)periph->softc;
487 s = splsoftcam();
488 /*
489 * Don't fail on the expected unit attention
490 * that will occur.
491 */
492 softc->flags |= PT_FLAG_RETRY_UA;
493 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
494 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
495 ccbh->ccb_state |= PT_CCB_RETRY_UA;
496 splx(s);
497 /* FALLTHROUGH */
498 }
499 default:
500 cam_periph_async(periph, code, path, arg);
501 break;
502 }
503}
504
505static void
506ptstart(struct cam_periph *periph, union ccb *start_ccb)
507{
508 struct pt_softc *softc;
|
509 struct buf *bp;
| 509 struct bio *bp;
|
510 int s;
511
512 softc = (struct pt_softc *)periph->softc;
513
514 /*
515 * See if there is a buf with work for us to do..
516 */
517 s = splbio();
| 510 int s;
511
512 softc = (struct pt_softc *)periph->softc;
513
514 /*
515 * See if there is a buf with work for us to do..
516 */
517 s = splbio();
|
518 bp = bufq_first(&softc->buf_queue);
| 518 bp = bioq_first(&softc->bio_queue);
|
519 if (periph->immediate_priority <= periph->pinfo.priority) {
520 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
521 ("queuing for immediate ccb\n"));
522 start_ccb->ccb_h.ccb_state = PT_CCB_WAITING;
523 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
524 periph_links.sle);
525 periph->immediate_priority = CAM_PRIORITY_NONE;
526 splx(s);
527 wakeup(&periph->ccb_list);
528 } else if (bp == NULL) {
529 splx(s);
530 xpt_release_ccb(start_ccb);
531 } else {
532 int oldspl;
533
| 519 if (periph->immediate_priority <= periph->pinfo.priority) {
520 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
521 ("queuing for immediate ccb\n"));
522 start_ccb->ccb_h.ccb_state = PT_CCB_WAITING;
523 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
524 periph_links.sle);
525 periph->immediate_priority = CAM_PRIORITY_NONE;
526 splx(s);
527 wakeup(&periph->ccb_list);
528 } else if (bp == NULL) {
529 splx(s);
530 xpt_release_ccb(start_ccb);
531 } else {
532 int oldspl;
533
|
534 bufq_remove(&softc->buf_queue, bp);
| 534 bioq_remove(&softc->bio_queue, bp);
|
535
536 devstat_start_transaction(&softc->device_stats);
537
538 scsi_send_receive(&start_ccb->csio,
539 /*retries*/4,
540 ptdone,
541 MSG_SIMPLE_Q_TAG,
| 535
536 devstat_start_transaction(&softc->device_stats);
537
538 scsi_send_receive(&start_ccb->csio,
539 /*retries*/4,
540 ptdone,
541 MSG_SIMPLE_Q_TAG,
|
542 bp->b_iocmd == BIO_READ,
| 542 bp->bio_cmd == BIO_READ,
|
543 /*byte2*/0,
| 543 /*byte2*/0,
|
544 bp->b_bcount,
545 bp->b_data,
| 544 bp->bio_bcount,
545 bp->bio_data,
|
546 /*sense_len*/SSD_FULL_SIZE,
547 /*timeout*/softc->io_timeout);
548
549 start_ccb->ccb_h.ccb_state = PT_CCB_BUFFER_IO;
550
551 /*
552 * Block out any asyncronous callbacks
553 * while we touch the pending ccb list.
554 */
555 oldspl = splcam();
556 LIST_INSERT_HEAD(&softc->pending_ccbs, &start_ccb->ccb_h,
557 periph_links.le);
558 splx(oldspl);
559
560 start_ccb->ccb_h.ccb_bp = bp;
| 546 /*sense_len*/SSD_FULL_SIZE,
547 /*timeout*/softc->io_timeout);
548
549 start_ccb->ccb_h.ccb_state = PT_CCB_BUFFER_IO;
550
551 /*
552 * Block out any asyncronous callbacks
553 * while we touch the pending ccb list.
554 */
555 oldspl = splcam();
556 LIST_INSERT_HEAD(&softc->pending_ccbs, &start_ccb->ccb_h,
557 periph_links.le);
558 splx(oldspl);
559
560 start_ccb->ccb_h.ccb_bp = bp;
|
561 bp = bufq_first(&softc->buf_queue);
| 561 bp = bioq_first(&softc->bio_queue);
|
562 splx(s);
563
564 xpt_action(start_ccb);
565
566 if (bp != NULL) {
567 /* Have more work to do, so ensure we stay scheduled */
568 xpt_schedule(periph, /* XXX priority */1);
569 }
570 }
571}
572
573static void
574ptdone(struct cam_periph *periph, union ccb *done_ccb)
575{
576 struct pt_softc *softc;
577 struct ccb_scsiio *csio;
578
579 softc = (struct pt_softc *)periph->softc;
580 csio = &done_ccb->csio;
581 switch (csio->ccb_h.ccb_state) {
582 case PT_CCB_BUFFER_IO:
583 case PT_CCB_BUFFER_IO_UA:
584 {
| 562 splx(s);
563
564 xpt_action(start_ccb);
565
566 if (bp != NULL) {
567 /* Have more work to do, so ensure we stay scheduled */
568 xpt_schedule(periph, /* XXX priority */1);
569 }
570 }
571}
572
573static void
574ptdone(struct cam_periph *periph, union ccb *done_ccb)
575{
576 struct pt_softc *softc;
577 struct ccb_scsiio *csio;
578
579 softc = (struct pt_softc *)periph->softc;
580 csio = &done_ccb->csio;
581 switch (csio->ccb_h.ccb_state) {
582 case PT_CCB_BUFFER_IO:
583 case PT_CCB_BUFFER_IO_UA:
584 {
|
585 struct buf *bp;
| 585 struct bio *bp;
|
586 int oldspl;
587
| 586 int oldspl;
587
|
588 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
| 588 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
|
589 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
590 int error;
591 int s;
592 int sf;
593
594 if ((csio->ccb_h.ccb_state & PT_CCB_RETRY_UA) != 0)
595 sf = SF_RETRY_UA;
596 else
597 sf = 0;
598
599 sf |= SF_RETRY_SELTO;
600
601 if ((error = pterror(done_ccb, 0, sf)) == ERESTART) {
602 /*
603 * A retry was scheuled, so
604 * just return.
605 */
606 return;
607 }
608 if (error != 0) {
| 589 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
590 int error;
591 int s;
592 int sf;
593
594 if ((csio->ccb_h.ccb_state & PT_CCB_RETRY_UA) != 0)
595 sf = SF_RETRY_UA;
596 else
597 sf = 0;
598
599 sf |= SF_RETRY_SELTO;
600
601 if ((error = pterror(done_ccb, 0, sf)) == ERESTART) {
602 /*
603 * A retry was scheuled, so
604 * just return.
605 */
606 return;
607 }
608 if (error != 0) {
|
609 struct buf *q_bp;
| 609 struct bio *q_bp;
|
610
611 s = splbio();
612
613 if (error == ENXIO) {
614 /*
615 * Catastrophic error. Mark our device
616 * as invalid.
617 */
618 xpt_print_path(periph->path);
619 printf("Invalidating device\n");
620 softc->flags |= PT_FLAG_DEVICE_INVALID;
621 }
622
623 /*
624 * return all queued I/O with EIO, so that
625 * the client can retry these I/Os in the
626 * proper order should it attempt to recover.
627 */
| 610
611 s = splbio();
612
613 if (error == ENXIO) {
614 /*
615 * Catastrophic error. Mark our device
616 * as invalid.
617 */
618 xpt_print_path(periph->path);
619 printf("Invalidating device\n");
620 softc->flags |= PT_FLAG_DEVICE_INVALID;
621 }
622
623 /*
624 * return all queued I/O with EIO, so that
625 * the client can retry these I/Os in the
626 * proper order should it attempt to recover.
627 */
|
628 while ((q_bp = bufq_first(&softc->buf_queue))
| 628 while ((q_bp = bioq_first(&softc->bio_queue))
|
629 != NULL) {
| 629 != NULL) {
|
630 bufq_remove(&softc->buf_queue, q_bp);
631 q_bp->b_resid = q_bp->b_bcount;
632 q_bp->b_error = EIO;
633 q_bp->b_ioflags |= BIO_ERROR;
| 630 bioq_remove(&softc->bio_queue, q_bp);
631 q_bp->bio_resid = q_bp->bio_bcount;
632 q_bp->bio_error = EIO;
633 q_bp->bio_flags |= BIO_ERROR;
|
634 biodone(q_bp);
635 }
636 splx(s);
| 634 biodone(q_bp);
635 }
636 splx(s);
|
637 bp->b_error = error;
638 bp->b_resid = bp->b_bcount;
639 bp->b_ioflags |= BIO_ERROR;
| 637 bp->bio_error = error;
638 bp->bio_resid = bp->bio_bcount;
639 bp->bio_flags |= BIO_ERROR;
|
640 } else {
| 640 } else {
|
641 bp->b_resid = csio->resid;
642 bp->b_error = 0;
643 if (bp->b_resid != 0) {
| 641 bp->bio_resid = csio->resid;
642 bp->bio_error = 0;
643 if (bp->bio_resid != 0) {
|
644 /* Short transfer ??? */
| 644 /* Short transfer ??? */
|
645 bp->b_ioflags |= BIO_ERROR;
| 645 bp->bio_flags |= BIO_ERROR;
|
646 }
647 }
648 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
649 cam_release_devq(done_ccb->ccb_h.path,
650 /*relsim_flags*/0,
651 /*reduction*/0,
652 /*timeout*/0,
653 /*getcount_only*/0);
654 } else {
| 646 }
647 }
648 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
649 cam_release_devq(done_ccb->ccb_h.path,
650 /*relsim_flags*/0,
651 /*reduction*/0,
652 /*timeout*/0,
653 /*getcount_only*/0);
654 } else {
|
655 bp->b_resid = csio->resid;
656 if (bp->b_resid != 0)
657 bp->b_ioflags |= BIO_ERROR;
| 655 bp->bio_resid = csio->resid;
656 if (bp->bio_resid != 0)
657 bp->bio_flags |= BIO_ERROR;
|
658 }
659
660 /*
661 * Block out any asyncronous callbacks
662 * while we touch the pending ccb list.
663 */
664 oldspl = splcam();
665 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
666 splx(oldspl);
667
| 658 }
659
660 /*
661 * Block out any asyncronous callbacks
662 * while we touch the pending ccb list.
663 */
664 oldspl = splcam();
665 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
666 splx(oldspl);
667
|
668 devstat_end_transaction_buf(&softc->device_stats, bp);
| 668 devstat_end_transaction_bio(&softc->device_stats, bp);
|
669 biodone(bp);
670 break;
671 }
672 case PT_CCB_WAITING:
673 /* Caller will release the CCB */
674 wakeup(&done_ccb->ccb_h.cbfcnp);
675 return;
676 }
677 xpt_release_ccb(done_ccb);
678}
679
680static int
681pterror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
682{
683 struct pt_softc *softc;
684 struct cam_periph *periph;
685
686 periph = xpt_path_periph(ccb->ccb_h.path);
687 softc = (struct pt_softc *)periph->softc;
688
689 return(cam_periph_error(ccb, cam_flags, sense_flags,
690 &softc->saved_ccb));
691}
692
693static int
694ptioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
695{
696 struct cam_periph *periph;
697 struct pt_softc *softc;
698 int unit;
699 int error;
700
701 unit = minor(dev);
702 periph = cam_extend_get(ptperiphs, unit);
703
704 if (periph == NULL)
705 return(ENXIO);
706
707 softc = (struct pt_softc *)periph->softc;
708
709 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
710 return (error); /* error code from tsleep */
711 }
712
713 switch(cmd) {
714 case PTIOCGETTIMEOUT:
715 if (softc->io_timeout >= 1000)
716 *(int *)addr = softc->io_timeout / 1000;
717 else
718 *(int *)addr = 0;
719 break;
720 case PTIOCSETTIMEOUT:
721 {
722 int s;
723
724 if (*(int *)addr < 1) {
725 error = EINVAL;
726 break;
727 }
728
729 s = splsoftcam();
730 softc->io_timeout = *(int *)addr * 1000;
731 splx(s);
732
733 break;
734 }
735 default:
736 error = cam_periph_ioctl(periph, cmd, addr, pterror);
737 break;
738 }
739
740 cam_periph_unlock(periph);
741
742 return(error);
743}
744
745void
746scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
747 void (*cbfcnp)(struct cam_periph *, union ccb *),
748 u_int tag_action, int readop, u_int byte2,
749 u_int32_t xfer_len, u_int8_t *data_ptr, u_int8_t sense_len,
750 u_int32_t timeout)
751{
752 struct scsi_send_receive *scsi_cmd;
753
754 scsi_cmd = (struct scsi_send_receive *)&csio->cdb_io.cdb_bytes;
755 scsi_cmd->opcode = readop ? RECEIVE : SEND;
756 scsi_cmd->byte2 = byte2;
757 scsi_ulto3b(xfer_len, scsi_cmd->xfer_len);
758 scsi_cmd->control = 0;
759
760 cam_fill_csio(csio,
761 retries,
762 cbfcnp,
763 /*flags*/readop ? CAM_DIR_IN : CAM_DIR_OUT,
764 tag_action,
765 data_ptr,
766 xfer_len,
767 sense_len,
768 sizeof(*scsi_cmd),
769 timeout);
770}
| 669 biodone(bp);
670 break;
671 }
672 case PT_CCB_WAITING:
673 /* Caller will release the CCB */
674 wakeup(&done_ccb->ccb_h.cbfcnp);
675 return;
676 }
677 xpt_release_ccb(done_ccb);
678}
679
680static int
681pterror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
682{
683 struct pt_softc *softc;
684 struct cam_periph *periph;
685
686 periph = xpt_path_periph(ccb->ccb_h.path);
687 softc = (struct pt_softc *)periph->softc;
688
689 return(cam_periph_error(ccb, cam_flags, sense_flags,
690 &softc->saved_ccb));
691}
692
693static int
694ptioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
695{
696 struct cam_periph *periph;
697 struct pt_softc *softc;
698 int unit;
699 int error;
700
701 unit = minor(dev);
702 periph = cam_extend_get(ptperiphs, unit);
703
704 if (periph == NULL)
705 return(ENXIO);
706
707 softc = (struct pt_softc *)periph->softc;
708
709 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
710 return (error); /* error code from tsleep */
711 }
712
713 switch(cmd) {
714 case PTIOCGETTIMEOUT:
715 if (softc->io_timeout >= 1000)
716 *(int *)addr = softc->io_timeout / 1000;
717 else
718 *(int *)addr = 0;
719 break;
720 case PTIOCSETTIMEOUT:
721 {
722 int s;
723
724 if (*(int *)addr < 1) {
725 error = EINVAL;
726 break;
727 }
728
729 s = splsoftcam();
730 softc->io_timeout = *(int *)addr * 1000;
731 splx(s);
732
733 break;
734 }
735 default:
736 error = cam_periph_ioctl(periph, cmd, addr, pterror);
737 break;
738 }
739
740 cam_periph_unlock(periph);
741
742 return(error);
743}
744
745void
746scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
747 void (*cbfcnp)(struct cam_periph *, union ccb *),
748 u_int tag_action, int readop, u_int byte2,
749 u_int32_t xfer_len, u_int8_t *data_ptr, u_int8_t sense_len,
750 u_int32_t timeout)
751{
752 struct scsi_send_receive *scsi_cmd;
753
754 scsi_cmd = (struct scsi_send_receive *)&csio->cdb_io.cdb_bytes;
755 scsi_cmd->opcode = readop ? RECEIVE : SEND;
756 scsi_cmd->byte2 = byte2;
757 scsi_ulto3b(xfer_len, scsi_cmd->xfer_len);
758 scsi_cmd->control = 0;
759
760 cam_fill_csio(csio,
761 retries,
762 cbfcnp,
763 /*flags*/readop ? CAM_DIR_IN : CAM_DIR_OUT,
764 tag_action,
765 data_ptr,
766 xfer_len,
767 sense_len,
768 sizeof(*scsi_cmd),
769 timeout);
770}
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