1 /*
2 * Copyright (c) 2000-2001 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
16 * 3. Neither the names of the above-listed copyright holders nor the names
17 * of any contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
23 *
24 * NO WARRANTY
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
34 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGES.
36 *
37 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
38 * sym driver.
39 *
40 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $
41 */
42 #include "aic7xxx_osm.h"
43 #include "aic7xxx_inline.h"
44 #include "aic7xxx_93cx6.h"
45
46 static void copy_mem_info(struct info_str *info, char *data, int len);
47 static int copy_info(struct info_str *info, char *fmt, ...);
48 static void ahc_dump_target_state(struct ahc_softc *ahc,
49 struct info_str *info,
50 u_int our_id, char channel,
51 u_int target_id, u_int target_offset);
52 static void ahc_dump_device_state(struct info_str *info,
53 struct ahc_linux_device *dev);
54 static int ahc_proc_write_seeprom(struct ahc_softc *ahc,
55 char *buffer, int length);
56
57 static void
58 copy_mem_info(struct info_str *info, char *data, int len)
59 {
60 if (info->pos + len > info->offset + info->length)
61 len = info->offset + info->length - info->pos;
62
63 if (info->pos + len < info->offset) {
64 info->pos += len;
65 return;
66 }
67
68 if (info->pos < info->offset) {
69 off_t partial;
70
71 partial = info->offset - info->pos;
72 data += partial;
73 info->pos += partial;
74 len -= partial;
75 }
76
77 if (len > 0) {
78 memcpy(info->buffer, data, len);
79 info->pos += len;
80 info->buffer += len;
81 }
82 }
83
84 static int
85 copy_info(struct info_str *info, char *fmt, ...)
86 {
87 va_list args;
88 char buf[256];
89 int len;
90
91 va_start(args, fmt);
92 len = vsprintf(buf, fmt, args);
93 va_end(args);
94
95 copy_mem_info(info, buf, len);
96 return (len);
97 }
98
99 void
100 ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo)
101 {
102 u_int speed;
103 u_int freq;
104 u_int mb;
105
106 speed = 3300;
107 freq = 0;
108 if (tinfo->offset != 0) {
109 freq = aic_calc_syncsrate(tinfo->period);
110 speed = freq;
111 }
112 speed *= (0x01 << tinfo->width);
113 mb = speed / 1000;
114 if (mb > 0)
115 copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
116 else
117 copy_info(info, "%dKB/s transfers", speed);
118
119 if (freq != 0) {
120 copy_info(info, " (%d.%03dMHz%s, offset %d",
121 freq / 1000, freq % 1000,
122 (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
123 ? " DT" : "", tinfo->offset);
124 }
125
126 if (tinfo->width > 0) {
127 if (freq != 0) {
128 copy_info(info, ", ");
129 } else {
130 copy_info(info, " (");
131 }
132 copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
133 } else if (freq != 0) {
134 copy_info(info, ")");
135 }
136 copy_info(info, "\n");
137 }
138
139 static void
140 ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info,
141 u_int our_id, char channel, u_int target_id,
142 u_int target_offset)
143 {
144 struct ahc_linux_target *targ;
145 struct ahc_initiator_tinfo *tinfo;
146 struct ahc_tmode_tstate *tstate;
147 int lun;
148
149 tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
150 target_id, &tstate);
151 if ((ahc->features & AHC_TWIN) != 0)
152 copy_info(info, "Channel %c ", channel);
153 copy_info(info, "Target %d Negotiation Settings\n", target_id);
154 copy_info(info, "\tUser: ");
155 ahc_format_transinfo(info, &tinfo->user);
156 targ = ahc->platform_data->targets[target_offset];
157 if (targ == NULL)
158 return;
159
160 copy_info(info, "\tGoal: ");
161 ahc_format_transinfo(info, &tinfo->goal);
162 copy_info(info, "\tCurr: ");
163 ahc_format_transinfo(info, &tinfo->curr);
164
165 for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
166 struct ahc_linux_device *dev;
167
168 dev = targ->devices[lun];
169
170 if (dev == NULL)
171 continue;
172
173 ahc_dump_device_state(info, dev);
174 }
175 }
176
177 static void
178 ahc_dump_device_state(struct info_str *info, struct ahc_linux_device *dev)
179 {
180 copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
181 dev->target->channel + 'A', dev->target->target, dev->lun);
182
183 copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
184 copy_info(info, "\t\tCommands Active %d\n", dev->active);
185 copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
186 copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
187 copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
188 }
189
190 static int
191 ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length)
192 {
193 struct seeprom_descriptor sd;
194 int have_seeprom;
195 u_long s;
196 int paused;
197 int written;
198
199 /* Default to failure. */
200 written = -EINVAL;
201 ahc_lock(ahc, &s);
202 paused = ahc_is_paused(ahc);
203 if (!paused)
204 ahc_pause(ahc);
205
206 if (length != sizeof(struct seeprom_config)) {
207 printf("ahc_proc_write_seeprom: incorrect buffer size\n");
208 goto done;
209 }
210
211 have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
212 if (have_seeprom == 0) {
213 printf("ahc_proc_write_seeprom: cksum verification failed\n");
214 goto done;
215 }
216
217 sd.sd_ahc = ahc;
218 #if AHC_PCI_CONFIG > 0
219 if ((ahc->chip & AHC_PCI) != 0) {
220 sd.sd_control_offset = SEECTL;
221 sd.sd_status_offset = SEECTL;
222 sd.sd_dataout_offset = SEECTL;
223 if (ahc->flags & AHC_LARGE_SEEPROM)
224 sd.sd_chip = C56_66;
225 else
226 sd.sd_chip = C46;
227 sd.sd_MS = SEEMS;
228 sd.sd_RDY = SEERDY;
229 sd.sd_CS = SEECS;
230 sd.sd_CK = SEECK;
231 sd.sd_DO = SEEDO;
232 sd.sd_DI = SEEDI;
233 have_seeprom = ahc_acquire_seeprom(ahc, &sd);
234 } else
235 #endif
236 if ((ahc->chip & AHC_VL) != 0) {
237 sd.sd_control_offset = SEECTL_2840;
238 sd.sd_status_offset = STATUS_2840;
239 sd.sd_dataout_offset = STATUS_2840;
240 sd.sd_chip = C46;
241 sd.sd_MS = 0;
242 sd.sd_RDY = EEPROM_TF;
243 sd.sd_CS = CS_2840;
244 sd.sd_CK = CK_2840;
245 sd.sd_DO = DO_2840;
246 sd.sd_DI = DI_2840;
247 have_seeprom = TRUE;
248 } else {
249 printf("ahc_proc_write_seeprom: unsupported adapter type\n");
250 goto done;
251 }
252
253 if (!have_seeprom) {
254 printf("ahc_proc_write_seeprom: No Serial EEPROM\n");
255 goto done;
256 } else {
257 u_int start_addr;
258
259 if (ahc->seep_config == NULL) {
260 ahc->seep_config = malloc(sizeof(*ahc->seep_config),
261 M_DEVBUF, M_NOWAIT);
262 if (ahc->seep_config == NULL) {
263 printf("aic7xxx: Unable to allocate serial "
264 "eeprom buffer. Write failing\n");
265 goto done;
266 }
267 }
268 printf("aic7xxx: Writing Serial EEPROM\n");
269 start_addr = 32 * (ahc->channel - 'A');
270 ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
271 sizeof(struct seeprom_config)/2);
272 ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
273 start_addr, sizeof(struct seeprom_config)/2);
274 #if AHC_PCI_CONFIG > 0
275 if ((ahc->chip & AHC_VL) == 0)
276 ahc_release_seeprom(&sd);
277 #endif
278 written = length;
279 }
280
281 done:
282 if (!paused)
283 ahc_unpause(ahc);
284 ahc_unlock(ahc, &s);
285 return (written);
286 }
287
288 /*
289 * Return information to handle /proc support for the driver.
290 */
291 int
292 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
293 ahc_linux_proc_info(char *buffer, char **start, off_t offset,
294 int length, int hostno, int inout)
295 #else
296 ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
297 off_t offset, int length, int inout)
298 #endif
299 {
300 struct ahc_softc *ahc;
301 struct info_str info;
302 char ahc_info[256];
303 u_long s;
304 u_int max_targ;
305 u_int i;
306 int retval;
307
308 retval = -EINVAL;
309 ahc_list_lock(&s);
310 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
311 TAILQ_FOREACH(ahc, &ahc_tailq, links) {
312 if (ahc->platform_data->host->host_no == hostno)
313 break;
314 }
315 #else
316 ahc = ahc_find_softc(*(struct ahc_softc **)shost->hostdata);
317 #endif
318
319 if (ahc == NULL)
320 goto done;
321
322 /* Has data been written to the file? */
323 if (inout == TRUE) {
324 retval = ahc_proc_write_seeprom(ahc, buffer, length);
325 goto done;
326 }
327
328 if (start)
329 *start = buffer;
330
331 info.buffer = buffer;
332 info.length = length;
333 info.offset = offset;
334 info.pos = 0;
335
336 copy_info(&info, "Adaptec AIC7xxx driver version: %s\n",
337 AIC7XXX_DRIVER_VERSION);
338 copy_info(&info, "%s\n", ahc->description);
339 ahc_controller_info(ahc, ahc_info);
340 copy_info(&info, "%s\n", ahc_info);
341 copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
342 ahc->scb_data->numscbs, AHC_NSEG);
343
344
345 if (ahc->seep_config == NULL)
346 copy_info(&info, "No Serial EEPROM\n");
347 else {
348 copy_info(&info, "Serial EEPROM:\n");
349 for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
350 if (((i % 8) == 0) && (i != 0)) {
351 copy_info(&info, "\n");
352 }
353 copy_info(&info, "0x%.4x ",
354 ((uint16_t*)ahc->seep_config)[i]);
355 }
356 copy_info(&info, "\n");
357 }
358 copy_info(&info, "\n");
359
360 max_targ = 15;
361 if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
362 max_targ = 7;
363
364 for (i = 0; i <= max_targ; i++) {
365 u_int our_id;
366 u_int target_id;
367 char channel;
368
369 channel = 'A';
370 our_id = ahc->our_id;
371 target_id = i;
372 if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
373 channel = 'B';
374 our_id = ahc->our_id_b;
375 target_id = i % 8;
376 }
377
378 ahc_dump_target_state(ahc, &info, our_id,
379 channel, target_id, i);
380 }
381 retval = info.pos > info.offset ? info.pos - info.offset : 0;
382 done:
383 ahc_list_unlock(&s);
384 return (retval);
385 }
386
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