Commit | Line | Data |
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1da177e4 LT |
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, | |
b1abb4d6 | 53 | struct scsi_device *dev); |
1da177e4 LT |
54 | static int ahc_proc_write_seeprom(struct ahc_softc *ahc, |
55 | char *buffer, int length); | |
56 | ||
1ff92730 CH |
57 | /* |
58 | * Table of syncrates that don't follow the "divisible by 4" | |
59 | * rule. This table will be expanded in future SCSI specs. | |
60 | */ | |
980b306a | 61 | static const struct { |
1ff92730 CH |
62 | u_int period_factor; |
63 | u_int period; /* in 100ths of ns */ | |
64 | } scsi_syncrates[] = { | |
65 | { 0x08, 625 }, /* FAST-160 */ | |
66 | { 0x09, 1250 }, /* FAST-80 */ | |
67 | { 0x0a, 2500 }, /* FAST-40 40MHz */ | |
68 | { 0x0b, 3030 }, /* FAST-40 33MHz */ | |
69 | { 0x0c, 5000 } /* FAST-20 */ | |
70 | }; | |
71 | ||
72 | /* | |
73 | * Return the frequency in kHz corresponding to the given | |
74 | * sync period factor. | |
75 | */ | |
76 | static u_int | |
77 | ahc_calc_syncsrate(u_int period_factor) | |
78 | { | |
79 | int i; | |
1ff92730 | 80 | |
1ff92730 | 81 | /* See if the period is in the "exception" table */ |
6391a113 | 82 | for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
1ff92730 CH |
83 | |
84 | if (period_factor == scsi_syncrates[i].period_factor) { | |
85 | /* Period in kHz */ | |
86 | return (100000000 / scsi_syncrates[i].period); | |
87 | } | |
88 | } | |
89 | ||
90 | /* | |
91 | * Wasn't in the table, so use the standard | |
92 | * 4 times conversion. | |
93 | */ | |
94 | return (10000000 / (period_factor * 4 * 10)); | |
95 | } | |
96 | ||
97 | ||
1da177e4 LT |
98 | static void |
99 | copy_mem_info(struct info_str *info, char *data, int len) | |
100 | { | |
101 | if (info->pos + len > info->offset + info->length) | |
102 | len = info->offset + info->length - info->pos; | |
103 | ||
104 | if (info->pos + len < info->offset) { | |
105 | info->pos += len; | |
106 | return; | |
107 | } | |
108 | ||
109 | if (info->pos < info->offset) { | |
110 | off_t partial; | |
111 | ||
112 | partial = info->offset - info->pos; | |
113 | data += partial; | |
114 | info->pos += partial; | |
115 | len -= partial; | |
116 | } | |
117 | ||
118 | if (len > 0) { | |
119 | memcpy(info->buffer, data, len); | |
120 | info->pos += len; | |
121 | info->buffer += len; | |
122 | } | |
123 | } | |
124 | ||
125 | static int | |
126 | copy_info(struct info_str *info, char *fmt, ...) | |
127 | { | |
128 | va_list args; | |
129 | char buf[256]; | |
130 | int len; | |
131 | ||
132 | va_start(args, fmt); | |
133 | len = vsprintf(buf, fmt, args); | |
134 | va_end(args); | |
135 | ||
136 | copy_mem_info(info, buf, len); | |
137 | return (len); | |
138 | } | |
139 | ||
d1d7b19d | 140 | static void |
1da177e4 LT |
141 | ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) |
142 | { | |
143 | u_int speed; | |
144 | u_int freq; | |
145 | u_int mb; | |
146 | ||
147 | speed = 3300; | |
148 | freq = 0; | |
149 | if (tinfo->offset != 0) { | |
1ff92730 | 150 | freq = ahc_calc_syncsrate(tinfo->period); |
1da177e4 LT |
151 | speed = freq; |
152 | } | |
153 | speed *= (0x01 << tinfo->width); | |
154 | mb = speed / 1000; | |
155 | if (mb > 0) | |
156 | copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); | |
157 | else | |
158 | copy_info(info, "%dKB/s transfers", speed); | |
159 | ||
160 | if (freq != 0) { | |
161 | copy_info(info, " (%d.%03dMHz%s, offset %d", | |
162 | freq / 1000, freq % 1000, | |
163 | (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 | |
164 | ? " DT" : "", tinfo->offset); | |
165 | } | |
166 | ||
167 | if (tinfo->width > 0) { | |
168 | if (freq != 0) { | |
169 | copy_info(info, ", "); | |
170 | } else { | |
171 | copy_info(info, " ("); | |
172 | } | |
173 | copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); | |
174 | } else if (freq != 0) { | |
175 | copy_info(info, ")"); | |
176 | } | |
177 | copy_info(info, "\n"); | |
178 | } | |
179 | ||
180 | static void | |
181 | ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, | |
182 | u_int our_id, char channel, u_int target_id, | |
183 | u_int target_offset) | |
184 | { | |
b1abb4d6 | 185 | struct scsi_target *starget; |
1da177e4 LT |
186 | struct ahc_initiator_tinfo *tinfo; |
187 | struct ahc_tmode_tstate *tstate; | |
188 | int lun; | |
189 | ||
190 | tinfo = ahc_fetch_transinfo(ahc, channel, our_id, | |
191 | target_id, &tstate); | |
192 | if ((ahc->features & AHC_TWIN) != 0) | |
193 | copy_info(info, "Channel %c ", channel); | |
194 | copy_info(info, "Target %d Negotiation Settings\n", target_id); | |
195 | copy_info(info, "\tUser: "); | |
196 | ahc_format_transinfo(info, &tinfo->user); | |
b1abb4d6 | 197 | starget = ahc->platform_data->starget[target_offset]; |
c0df28cf | 198 | if (!starget) |
1da177e4 LT |
199 | return; |
200 | ||
201 | copy_info(info, "\tGoal: "); | |
202 | ahc_format_transinfo(info, &tinfo->goal); | |
203 | copy_info(info, "\tCurr: "); | |
204 | ahc_format_transinfo(info, &tinfo->curr); | |
205 | ||
206 | for (lun = 0; lun < AHC_NUM_LUNS; lun++) { | |
b1abb4d6 | 207 | struct scsi_device *sdev; |
1da177e4 | 208 | |
9080063f | 209 | sdev = scsi_device_lookup_by_target(starget, lun); |
1da177e4 | 210 | |
b1abb4d6 | 211 | if (sdev == NULL) |
1da177e4 LT |
212 | continue; |
213 | ||
b1abb4d6 | 214 | ahc_dump_device_state(info, sdev); |
1da177e4 LT |
215 | } |
216 | } | |
217 | ||
218 | static void | |
b1abb4d6 | 219 | ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev) |
1da177e4 | 220 | { |
b1abb4d6 JB |
221 | struct ahc_linux_device *dev = scsi_transport_device_data(sdev); |
222 | ||
1da177e4 | 223 | copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", |
b1abb4d6 JB |
224 | sdev->sdev_target->channel + 'A', |
225 | sdev->sdev_target->id, sdev->lun); | |
1da177e4 LT |
226 | |
227 | copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); | |
228 | copy_info(info, "\t\tCommands Active %d\n", dev->active); | |
229 | copy_info(info, "\t\tCommand Openings %d\n", dev->openings); | |
230 | copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); | |
231 | copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); | |
232 | } | |
233 | ||
234 | static int | |
235 | ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) | |
236 | { | |
237 | struct seeprom_descriptor sd; | |
238 | int have_seeprom; | |
239 | u_long s; | |
240 | int paused; | |
241 | int written; | |
242 | ||
243 | /* Default to failure. */ | |
244 | written = -EINVAL; | |
245 | ahc_lock(ahc, &s); | |
246 | paused = ahc_is_paused(ahc); | |
247 | if (!paused) | |
248 | ahc_pause(ahc); | |
249 | ||
250 | if (length != sizeof(struct seeprom_config)) { | |
48813cf9 | 251 | printk("ahc_proc_write_seeprom: incorrect buffer size\n"); |
1da177e4 LT |
252 | goto done; |
253 | } | |
254 | ||
255 | have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); | |
256 | if (have_seeprom == 0) { | |
48813cf9 | 257 | printk("ahc_proc_write_seeprom: cksum verification failed\n"); |
1da177e4 LT |
258 | goto done; |
259 | } | |
260 | ||
261 | sd.sd_ahc = ahc; | |
262 | #if AHC_PCI_CONFIG > 0 | |
263 | if ((ahc->chip & AHC_PCI) != 0) { | |
264 | sd.sd_control_offset = SEECTL; | |
265 | sd.sd_status_offset = SEECTL; | |
266 | sd.sd_dataout_offset = SEECTL; | |
267 | if (ahc->flags & AHC_LARGE_SEEPROM) | |
268 | sd.sd_chip = C56_66; | |
269 | else | |
270 | sd.sd_chip = C46; | |
271 | sd.sd_MS = SEEMS; | |
272 | sd.sd_RDY = SEERDY; | |
273 | sd.sd_CS = SEECS; | |
274 | sd.sd_CK = SEECK; | |
275 | sd.sd_DO = SEEDO; | |
276 | sd.sd_DI = SEEDI; | |
277 | have_seeprom = ahc_acquire_seeprom(ahc, &sd); | |
278 | } else | |
279 | #endif | |
280 | if ((ahc->chip & AHC_VL) != 0) { | |
281 | sd.sd_control_offset = SEECTL_2840; | |
282 | sd.sd_status_offset = STATUS_2840; | |
283 | sd.sd_dataout_offset = STATUS_2840; | |
284 | sd.sd_chip = C46; | |
285 | sd.sd_MS = 0; | |
286 | sd.sd_RDY = EEPROM_TF; | |
287 | sd.sd_CS = CS_2840; | |
288 | sd.sd_CK = CK_2840; | |
289 | sd.sd_DO = DO_2840; | |
290 | sd.sd_DI = DI_2840; | |
291 | have_seeprom = TRUE; | |
292 | } else { | |
48813cf9 | 293 | printk("ahc_proc_write_seeprom: unsupported adapter type\n"); |
1da177e4 LT |
294 | goto done; |
295 | } | |
296 | ||
297 | if (!have_seeprom) { | |
48813cf9 | 298 | printk("ahc_proc_write_seeprom: No Serial EEPROM\n"); |
1da177e4 LT |
299 | goto done; |
300 | } else { | |
301 | u_int start_addr; | |
302 | ||
303 | if (ahc->seep_config == NULL) { | |
48813cf9 | 304 | ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC); |
1da177e4 | 305 | if (ahc->seep_config == NULL) { |
48813cf9 | 306 | printk("aic7xxx: Unable to allocate serial " |
1da177e4 LT |
307 | "eeprom buffer. Write failing\n"); |
308 | goto done; | |
309 | } | |
310 | } | |
48813cf9 | 311 | printk("aic7xxx: Writing Serial EEPROM\n"); |
1da177e4 LT |
312 | start_addr = 32 * (ahc->channel - 'A'); |
313 | ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, | |
314 | sizeof(struct seeprom_config)/2); | |
315 | ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, | |
316 | start_addr, sizeof(struct seeprom_config)/2); | |
317 | #if AHC_PCI_CONFIG > 0 | |
318 | if ((ahc->chip & AHC_VL) == 0) | |
319 | ahc_release_seeprom(&sd); | |
320 | #endif | |
321 | written = length; | |
322 | } | |
323 | ||
324 | done: | |
325 | if (!paused) | |
326 | ahc_unpause(ahc); | |
327 | ahc_unlock(ahc, &s); | |
328 | return (written); | |
329 | } | |
330 | ||
331 | /* | |
332 | * Return information to handle /proc support for the driver. | |
333 | */ | |
334 | int | |
1da177e4 LT |
335 | ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, |
336 | off_t offset, int length, int inout) | |
1da177e4 | 337 | { |
3d65692a | 338 | struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; |
1da177e4 LT |
339 | struct info_str info; |
340 | char ahc_info[256]; | |
1da177e4 LT |
341 | u_int max_targ; |
342 | u_int i; | |
343 | int retval; | |
344 | ||
1da177e4 LT |
345 | /* Has data been written to the file? */ |
346 | if (inout == TRUE) { | |
347 | retval = ahc_proc_write_seeprom(ahc, buffer, length); | |
348 | goto done; | |
349 | } | |
350 | ||
351 | if (start) | |
352 | *start = buffer; | |
353 | ||
354 | info.buffer = buffer; | |
355 | info.length = length; | |
356 | info.offset = offset; | |
357 | info.pos = 0; | |
358 | ||
359 | copy_info(&info, "Adaptec AIC7xxx driver version: %s\n", | |
360 | AIC7XXX_DRIVER_VERSION); | |
361 | copy_info(&info, "%s\n", ahc->description); | |
362 | ahc_controller_info(ahc, ahc_info); | |
363 | copy_info(&info, "%s\n", ahc_info); | |
364 | copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", | |
365 | ahc->scb_data->numscbs, AHC_NSEG); | |
366 | ||
367 | ||
368 | if (ahc->seep_config == NULL) | |
369 | copy_info(&info, "No Serial EEPROM\n"); | |
370 | else { | |
371 | copy_info(&info, "Serial EEPROM:\n"); | |
372 | for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { | |
373 | if (((i % 8) == 0) && (i != 0)) { | |
374 | copy_info(&info, "\n"); | |
375 | } | |
376 | copy_info(&info, "0x%.4x ", | |
377 | ((uint16_t*)ahc->seep_config)[i]); | |
378 | } | |
379 | copy_info(&info, "\n"); | |
380 | } | |
381 | copy_info(&info, "\n"); | |
382 | ||
9080063f | 383 | max_targ = 16; |
1da177e4 | 384 | if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) |
9080063f | 385 | max_targ = 8; |
1da177e4 | 386 | |
9080063f | 387 | for (i = 0; i < max_targ; i++) { |
1da177e4 LT |
388 | u_int our_id; |
389 | u_int target_id; | |
390 | char channel; | |
391 | ||
392 | channel = 'A'; | |
393 | our_id = ahc->our_id; | |
394 | target_id = i; | |
395 | if (i > 7 && (ahc->features & AHC_TWIN) != 0) { | |
396 | channel = 'B'; | |
397 | our_id = ahc->our_id_b; | |
398 | target_id = i % 8; | |
399 | } | |
400 | ||
401 | ahc_dump_target_state(ahc, &info, our_id, | |
402 | channel, target_id, i); | |
403 | } | |
404 | retval = info.pos > info.offset ? info.pos - info.offset : 0; | |
405 | done: | |
1da177e4 LT |
406 | return (retval); |
407 | } |