summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/aic7xxx/aic79xx_proc.c
blob: cffdd104f9e40012809996275635871c239cf123 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
/*
 * Copyright (c) 2000-2001 Adaptec Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
 * sym driver.
 *
 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $
 */
#include "aic79xx_osm.h"
#include "aic79xx_inline.h"

static void	copy_mem_info(struct info_str *info, char *data, int len);
static int	copy_info(struct info_str *info, char *fmt, ...);
static void	ahd_dump_target_state(struct ahd_softc *ahd,
				      struct info_str *info,
				      u_int our_id, char channel,
				      u_int target_id, u_int target_offset);
static void	ahd_dump_device_state(struct info_str *info,
				      struct scsi_device *sdev);
static int	ahd_proc_write_seeprom(struct ahd_softc *ahd,
				       char *buffer, int length);

static void
copy_mem_info(struct info_str *info, char *data, int len)
{
	if (info->pos + len > info->offset + info->length)
		len = info->offset + info->length - info->pos;

	if (info->pos + len < info->offset) {
		info->pos += len;
		return;
	}

	if (info->pos < info->offset) {
		off_t partial;

		partial = info->offset - info->pos;
		data += partial;
		info->pos += partial;
		len  -= partial;
	}

	if (len > 0) {
		memcpy(info->buffer, data, len);
		info->pos += len;
		info->buffer += len;
	}
}

static int
copy_info(struct info_str *info, char *fmt, ...)
{
	va_list args;
	char buf[256];
	int len;

	va_start(args, fmt);
	len = vsprintf(buf, fmt, args);
	va_end(args);

	copy_mem_info(info, buf, len);
	return (len);
}

void
ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo)
{
	u_int speed;
	u_int freq;
	u_int mb;

	if (tinfo->period == AHD_PERIOD_UNKNOWN) {
		copy_info(info, "Renegotiation Pending\n");
		return;
	}
        speed = 3300;
        freq = 0;
	if (tinfo->offset != 0) {
		freq = aic_calc_syncsrate(tinfo->period);
		speed = freq;
	}
	speed *= (0x01 << tinfo->width);
        mb = speed / 1000;
        if (mb > 0)
		copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
        else
		copy_info(info, "%dKB/s transfers", speed);

	if (freq != 0) {
		int	printed_options;

		printed_options = 0;
		copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000);
		if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
			copy_info(info, " RDSTRM");
			printed_options++;
		}
		if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
			copy_info(info, "%s", printed_options ? "|DT" : " DT");
			printed_options++;
		}
		if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
			copy_info(info, "%s", printed_options ? "|IU" : " IU");
			printed_options++;
		}
		if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
			copy_info(info, "%s",
				  printed_options ? "|RTI" : " RTI");
			printed_options++;
		}
		if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
			copy_info(info, "%s",
				  printed_options ? "|QAS" : " QAS");
			printed_options++;
		}
	}

	if (tinfo->width > 0) {
		if (freq != 0) {
			copy_info(info, ", ");
		} else {
			copy_info(info, " (");
		}
		copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
	} else if (freq != 0) {
		copy_info(info, ")");
	}
	copy_info(info, "\n");
}

static void
ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
		      u_int our_id, char channel, u_int target_id,
		      u_int target_offset)
{
	struct	ahd_linux_target *targ;
	struct  scsi_target *starget;
	struct	ahd_initiator_tinfo *tinfo;
	struct	ahd_tmode_tstate *tstate;
	int	lun;

	tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
				    target_id, &tstate);
	copy_info(info, "Target %d Negotiation Settings\n", target_id);
	copy_info(info, "\tUser: ");
	ahd_format_transinfo(info, &tinfo->user);
	starget = ahd->platform_data->starget[target_offset];
	if (starget == NULL)
		return;
	targ = scsi_transport_target_data(starget);

	copy_info(info, "\tGoal: ");
	ahd_format_transinfo(info, &tinfo->goal);
	copy_info(info, "\tCurr: ");
	ahd_format_transinfo(info, &tinfo->curr);

	for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
		struct scsi_device *dev;

		dev = targ->sdev[lun];

		if (dev == NULL)
			continue;

		ahd_dump_device_state(info, dev);
	}
}

static void
ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev)
{
	struct ahd_linux_device *dev = scsi_transport_device_data(sdev);

	copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
		  sdev->sdev_target->channel + 'A',
		  sdev->sdev_target->id, sdev->lun);

	copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
	copy_info(info, "\t\tCommands Active %d\n", dev->active);
	copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
	copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
	copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
}

static int
ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length)
{
	ahd_mode_state saved_modes;
	int have_seeprom;
	u_long s;
	int paused;
	int written;

	/* Default to failure. */
	written = -EINVAL;
	ahd_lock(ahd, &s);
	paused = ahd_is_paused(ahd);
	if (!paused)
		ahd_pause(ahd);

	saved_modes = ahd_save_modes(ahd);
	ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
	if (length != sizeof(struct seeprom_config)) {
		printf("ahd_proc_write_seeprom: incorrect buffer size\n");
		goto done;
	}

	have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
	if (have_seeprom == 0) {
		printf("ahd_proc_write_seeprom: cksum verification failed\n");
		goto done;
	}

	have_seeprom = ahd_acquire_seeprom(ahd);
	if (!have_seeprom) {
		printf("ahd_proc_write_seeprom: No Serial EEPROM\n");
		goto done;
	} else {
		u_int start_addr;

		if (ahd->seep_config == NULL) {
			ahd->seep_config = malloc(sizeof(*ahd->seep_config),
						  M_DEVBUF, M_NOWAIT);
			if (ahd->seep_config == NULL) {
				printf("aic79xx: Unable to allocate serial "
				       "eeprom buffer.  Write failing\n");
				goto done;
			}
		}
		printf("aic79xx: Writing Serial EEPROM\n");
		start_addr = 32 * (ahd->channel - 'A');
		ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
				  sizeof(struct seeprom_config)/2);
		ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
				 start_addr, sizeof(struct seeprom_config)/2,
				 /*ByteStream*/FALSE);
		ahd_release_seeprom(ahd);
		written = length;
	}

done:
	ahd_restore_modes(ahd, saved_modes);
	if (!paused)
		ahd_unpause(ahd);
	ahd_unlock(ahd, &s);
	return (written);
}
/*
 * Return information to handle /proc support for the driver.
 */
int
ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
		    off_t offset, int length, int inout)
{
	struct	ahd_softc *ahd;
	struct	info_str info;
	char	ahd_info[256];
	u_long	l;
	u_int	max_targ;
	u_int	i;
	int	retval;

	retval = -EINVAL;
	ahd_list_lock(&l);
	ahd = ahd_find_softc(*(struct ahd_softc **)shost->hostdata);

	if (ahd == NULL)
		goto done;

	 /* Has data been written to the file? */ 
	if (inout == TRUE) {
		retval = ahd_proc_write_seeprom(ahd, buffer, length);
		goto done;
	}

	if (start)
		*start = buffer;

	info.buffer	= buffer;
	info.length	= length;
	info.offset	= offset;
	info.pos	= 0;

	copy_info(&info, "Adaptec AIC79xx driver version: %s\n",
		  AIC79XX_DRIVER_VERSION);
	copy_info(&info, "%s\n", ahd->description);
	ahd_controller_info(ahd, ahd_info);
	copy_info(&info, "%s\n", ahd_info);
	copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
		  ahd->scb_data.numscbs, AHD_NSEG);

	max_targ = 15;

	if (ahd->seep_config == NULL)
		copy_info(&info, "No Serial EEPROM\n");
	else {
		copy_info(&info, "Serial EEPROM:\n");
		for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
			if (((i % 8) == 0) && (i != 0)) {
				copy_info(&info, "\n");
			}
			copy_info(&info, "0x%.4x ",
				  ((uint16_t*)ahd->seep_config)[i]);
		}
		copy_info(&info, "\n");
	}
	copy_info(&info, "\n");

	if ((ahd->features & AHD_WIDE) == 0)
		max_targ = 7;

	for (i = 0; i <= max_targ; i++) {

		ahd_dump_target_state(ahd, &info, ahd->our_id, 'A',
				      /*target_id*/i, /*target_offset*/i);
	}
	retval = info.pos > info.offset ? info.pos - info.offset : 0;
done:
	ahd_list_unlock(&l);
	return (retval);
}