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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/aic79xx_proc.c#19 $ | |
41 | */ | |
42 | #include "aic79xx_osm.h" | |
43 | #include "aic79xx_inline.h" | |
44 | ||
45 | static void copy_mem_info(struct info_str *info, char *data, int len); | |
46 | static int copy_info(struct info_str *info, char *fmt, ...); | |
47 | static void ahd_dump_target_state(struct ahd_softc *ahd, | |
48 | struct info_str *info, | |
49 | u_int our_id, char channel, | |
f89d0a4e | 50 | u_int target_id); |
1da177e4 | 51 | static void ahd_dump_device_state(struct info_str *info, |
73a25462 | 52 | struct scsi_device *sdev); |
1da177e4 LT |
53 | static int ahd_proc_write_seeprom(struct ahd_softc *ahd, |
54 | char *buffer, int length); | |
55 | ||
1ff92730 CH |
56 | /* |
57 | * Table of syncrates that don't follow the "divisible by 4" | |
58 | * rule. This table will be expanded in future SCSI specs. | |
59 | */ | |
980b306a | 60 | static const struct { |
1ff92730 CH |
61 | u_int period_factor; |
62 | u_int period; /* in 100ths of ns */ | |
63 | } scsi_syncrates[] = { | |
64 | { 0x08, 625 }, /* FAST-160 */ | |
65 | { 0x09, 1250 }, /* FAST-80 */ | |
66 | { 0x0a, 2500 }, /* FAST-40 40MHz */ | |
67 | { 0x0b, 3030 }, /* FAST-40 33MHz */ | |
68 | { 0x0c, 5000 } /* FAST-20 */ | |
69 | }; | |
70 | ||
71 | /* | |
72 | * Return the frequency in kHz corresponding to the given | |
73 | * sync period factor. | |
74 | */ | |
75 | static u_int | |
76 | ahd_calc_syncsrate(u_int period_factor) | |
77 | { | |
78 | int i; | |
1ff92730 | 79 | |
1ff92730 | 80 | /* See if the period is in the "exception" table */ |
6391a113 | 81 | for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
1ff92730 CH |
82 | |
83 | if (period_factor == scsi_syncrates[i].period_factor) { | |
84 | /* Period in kHz */ | |
85 | return (100000000 / scsi_syncrates[i].period); | |
86 | } | |
87 | } | |
88 | ||
89 | /* | |
90 | * Wasn't in the table, so use the standard | |
91 | * 4 times conversion. | |
92 | */ | |
93 | return (10000000 / (period_factor * 4 * 10)); | |
94 | } | |
95 | ||
96 | ||
1da177e4 LT |
97 | static void |
98 | copy_mem_info(struct info_str *info, char *data, int len) | |
99 | { | |
100 | if (info->pos + len > info->offset + info->length) | |
101 | len = info->offset + info->length - info->pos; | |
102 | ||
103 | if (info->pos + len < info->offset) { | |
104 | info->pos += len; | |
105 | return; | |
106 | } | |
107 | ||
108 | if (info->pos < info->offset) { | |
109 | off_t partial; | |
110 | ||
111 | partial = info->offset - info->pos; | |
112 | data += partial; | |
113 | info->pos += partial; | |
114 | len -= partial; | |
115 | } | |
116 | ||
117 | if (len > 0) { | |
118 | memcpy(info->buffer, data, len); | |
119 | info->pos += len; | |
120 | info->buffer += len; | |
121 | } | |
122 | } | |
123 | ||
124 | static int | |
125 | copy_info(struct info_str *info, char *fmt, ...) | |
126 | { | |
127 | va_list args; | |
128 | char buf[256]; | |
129 | int len; | |
130 | ||
131 | va_start(args, fmt); | |
132 | len = vsprintf(buf, fmt, args); | |
133 | va_end(args); | |
134 | ||
135 | copy_mem_info(info, buf, len); | |
136 | return (len); | |
137 | } | |
138 | ||
289fe5b1 | 139 | static void |
1da177e4 LT |
140 | ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo) |
141 | { | |
142 | u_int speed; | |
143 | u_int freq; | |
144 | u_int mb; | |
145 | ||
146 | if (tinfo->period == AHD_PERIOD_UNKNOWN) { | |
147 | copy_info(info, "Renegotiation Pending\n"); | |
148 | return; | |
149 | } | |
150 | speed = 3300; | |
151 | freq = 0; | |
152 | if (tinfo->offset != 0) { | |
1ff92730 | 153 | freq = ahd_calc_syncsrate(tinfo->period); |
1da177e4 LT |
154 | speed = freq; |
155 | } | |
156 | speed *= (0x01 << tinfo->width); | |
157 | mb = speed / 1000; | |
158 | if (mb > 0) | |
159 | copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); | |
160 | else | |
161 | copy_info(info, "%dKB/s transfers", speed); | |
162 | ||
163 | if (freq != 0) { | |
164 | int printed_options; | |
165 | ||
166 | printed_options = 0; | |
167 | copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000); | |
168 | if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) { | |
169 | copy_info(info, " RDSTRM"); | |
170 | printed_options++; | |
171 | } | |
172 | if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) { | |
173 | copy_info(info, "%s", printed_options ? "|DT" : " DT"); | |
174 | printed_options++; | |
175 | } | |
176 | if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { | |
177 | copy_info(info, "%s", printed_options ? "|IU" : " IU"); | |
178 | printed_options++; | |
179 | } | |
180 | if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) { | |
181 | copy_info(info, "%s", | |
182 | printed_options ? "|RTI" : " RTI"); | |
183 | printed_options++; | |
184 | } | |
185 | if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) { | |
186 | copy_info(info, "%s", | |
187 | printed_options ? "|QAS" : " QAS"); | |
188 | printed_options++; | |
189 | } | |
190 | } | |
191 | ||
192 | if (tinfo->width > 0) { | |
193 | if (freq != 0) { | |
194 | copy_info(info, ", "); | |
195 | } else { | |
196 | copy_info(info, " ("); | |
197 | } | |
198 | copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); | |
199 | } else if (freq != 0) { | |
200 | copy_info(info, ")"); | |
201 | } | |
202 | copy_info(info, "\n"); | |
203 | } | |
204 | ||
205 | static void | |
206 | ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info, | |
f89d0a4e | 207 | u_int our_id, char channel, u_int target_id) |
1da177e4 | 208 | { |
73a25462 | 209 | struct scsi_target *starget; |
1da177e4 LT |
210 | struct ahd_initiator_tinfo *tinfo; |
211 | struct ahd_tmode_tstate *tstate; | |
212 | int lun; | |
213 | ||
214 | tinfo = ahd_fetch_transinfo(ahd, channel, our_id, | |
215 | target_id, &tstate); | |
216 | copy_info(info, "Target %d Negotiation Settings\n", target_id); | |
217 | copy_info(info, "\tUser: "); | |
218 | ahd_format_transinfo(info, &tinfo->user); | |
f89d0a4e | 219 | starget = ahd->platform_data->starget[target_id]; |
3f40d7d6 | 220 | if (starget == NULL) |
1da177e4 LT |
221 | return; |
222 | ||
223 | copy_info(info, "\tGoal: "); | |
224 | ahd_format_transinfo(info, &tinfo->goal); | |
225 | copy_info(info, "\tCurr: "); | |
226 | ahd_format_transinfo(info, &tinfo->curr); | |
1da177e4 LT |
227 | |
228 | for (lun = 0; lun < AHD_NUM_LUNS; lun++) { | |
73a25462 | 229 | struct scsi_device *dev; |
1da177e4 | 230 | |
f89d0a4e | 231 | dev = scsi_device_lookup_by_target(starget, lun); |
1da177e4 LT |
232 | |
233 | if (dev == NULL) | |
234 | continue; | |
235 | ||
236 | ahd_dump_device_state(info, dev); | |
237 | } | |
238 | } | |
239 | ||
240 | static void | |
73a25462 | 241 | ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev) |
1da177e4 | 242 | { |
73a25462 HR |
243 | struct ahd_linux_device *dev = scsi_transport_device_data(sdev); |
244 | ||
1da177e4 | 245 | copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", |
73a25462 HR |
246 | sdev->sdev_target->channel + 'A', |
247 | sdev->sdev_target->id, sdev->lun); | |
1da177e4 LT |
248 | |
249 | copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); | |
250 | copy_info(info, "\t\tCommands Active %d\n", dev->active); | |
251 | copy_info(info, "\t\tCommand Openings %d\n", dev->openings); | |
252 | copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); | |
253 | copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); | |
254 | } | |
255 | ||
256 | static int | |
257 | ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length) | |
258 | { | |
259 | ahd_mode_state saved_modes; | |
260 | int have_seeprom; | |
261 | u_long s; | |
262 | int paused; | |
263 | int written; | |
264 | ||
265 | /* Default to failure. */ | |
266 | written = -EINVAL; | |
267 | ahd_lock(ahd, &s); | |
268 | paused = ahd_is_paused(ahd); | |
269 | if (!paused) | |
270 | ahd_pause(ahd); | |
271 | ||
272 | saved_modes = ahd_save_modes(ahd); | |
273 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); | |
274 | if (length != sizeof(struct seeprom_config)) { | |
48813cf9 | 275 | printk("ahd_proc_write_seeprom: incorrect buffer size\n"); |
1da177e4 LT |
276 | goto done; |
277 | } | |
278 | ||
279 | have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); | |
280 | if (have_seeprom == 0) { | |
48813cf9 | 281 | printk("ahd_proc_write_seeprom: cksum verification failed\n"); |
1da177e4 LT |
282 | goto done; |
283 | } | |
284 | ||
285 | have_seeprom = ahd_acquire_seeprom(ahd); | |
286 | if (!have_seeprom) { | |
48813cf9 | 287 | printk("ahd_proc_write_seeprom: No Serial EEPROM\n"); |
1da177e4 LT |
288 | goto done; |
289 | } else { | |
290 | u_int start_addr; | |
291 | ||
292 | if (ahd->seep_config == NULL) { | |
48813cf9 | 293 | ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC); |
1da177e4 | 294 | if (ahd->seep_config == NULL) { |
48813cf9 | 295 | printk("aic79xx: Unable to allocate serial " |
1da177e4 LT |
296 | "eeprom buffer. Write failing\n"); |
297 | goto done; | |
298 | } | |
299 | } | |
48813cf9 | 300 | printk("aic79xx: Writing Serial EEPROM\n"); |
1da177e4 LT |
301 | start_addr = 32 * (ahd->channel - 'A'); |
302 | ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr, | |
303 | sizeof(struct seeprom_config)/2); | |
304 | ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config, | |
305 | start_addr, sizeof(struct seeprom_config)/2, | |
306 | /*ByteStream*/FALSE); | |
307 | ahd_release_seeprom(ahd); | |
308 | written = length; | |
309 | } | |
310 | ||
311 | done: | |
312 | ahd_restore_modes(ahd, saved_modes); | |
313 | if (!paused) | |
314 | ahd_unpause(ahd); | |
315 | ahd_unlock(ahd, &s); | |
316 | return (written); | |
317 | } | |
318 | /* | |
319 | * Return information to handle /proc support for the driver. | |
320 | */ | |
321 | int | |
1da177e4 LT |
322 | ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, |
323 | off_t offset, int length, int inout) | |
1da177e4 | 324 | { |
85a46523 | 325 | struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
1da177e4 LT |
326 | struct info_str info; |
327 | char ahd_info[256]; | |
1da177e4 LT |
328 | u_int max_targ; |
329 | u_int i; | |
330 | int retval; | |
331 | ||
1da177e4 LT |
332 | /* Has data been written to the file? */ |
333 | if (inout == TRUE) { | |
334 | retval = ahd_proc_write_seeprom(ahd, buffer, length); | |
335 | goto done; | |
336 | } | |
337 | ||
338 | if (start) | |
339 | *start = buffer; | |
340 | ||
341 | info.buffer = buffer; | |
342 | info.length = length; | |
343 | info.offset = offset; | |
344 | info.pos = 0; | |
345 | ||
346 | copy_info(&info, "Adaptec AIC79xx driver version: %s\n", | |
347 | AIC79XX_DRIVER_VERSION); | |
348 | copy_info(&info, "%s\n", ahd->description); | |
349 | ahd_controller_info(ahd, ahd_info); | |
350 | copy_info(&info, "%s\n", ahd_info); | |
351 | copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", | |
352 | ahd->scb_data.numscbs, AHD_NSEG); | |
353 | ||
f89d0a4e | 354 | max_targ = 16; |
1da177e4 LT |
355 | |
356 | if (ahd->seep_config == NULL) | |
357 | copy_info(&info, "No Serial EEPROM\n"); | |
358 | else { | |
359 | copy_info(&info, "Serial EEPROM:\n"); | |
360 | for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) { | |
361 | if (((i % 8) == 0) && (i != 0)) { | |
362 | copy_info(&info, "\n"); | |
363 | } | |
364 | copy_info(&info, "0x%.4x ", | |
365 | ((uint16_t*)ahd->seep_config)[i]); | |
366 | } | |
367 | copy_info(&info, "\n"); | |
368 | } | |
369 | copy_info(&info, "\n"); | |
370 | ||
371 | if ((ahd->features & AHD_WIDE) == 0) | |
f89d0a4e | 372 | max_targ = 8; |
1da177e4 | 373 | |
f89d0a4e | 374 | for (i = 0; i < max_targ; i++) { |
1da177e4 LT |
375 | |
376 | ahd_dump_target_state(ahd, &info, ahd->our_id, 'A', | |
f89d0a4e | 377 | /*target_id*/i); |
1da177e4 LT |
378 | } |
379 | retval = info.pos > info.offset ? info.pos - info.offset : 0; | |
380 | done: | |
1da177e4 LT |
381 | return (retval); |
382 | } |