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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 | ||
1da177e4 | 46 | static void ahc_dump_target_state(struct ahc_softc *ahc, |
6b3a8bbf | 47 | struct seq_file *m, |
1da177e4 LT |
48 | u_int our_id, char channel, |
49 | u_int target_id, u_int target_offset); | |
6b3a8bbf | 50 | static void ahc_dump_device_state(struct seq_file *m, |
b1abb4d6 | 51 | struct scsi_device *dev); |
1da177e4 | 52 | |
1ff92730 CH |
53 | /* |
54 | * Table of syncrates that don't follow the "divisible by 4" | |
55 | * rule. This table will be expanded in future SCSI specs. | |
56 | */ | |
980b306a | 57 | static const struct { |
1ff92730 CH |
58 | u_int period_factor; |
59 | u_int period; /* in 100ths of ns */ | |
60 | } scsi_syncrates[] = { | |
61 | { 0x08, 625 }, /* FAST-160 */ | |
62 | { 0x09, 1250 }, /* FAST-80 */ | |
63 | { 0x0a, 2500 }, /* FAST-40 40MHz */ | |
64 | { 0x0b, 3030 }, /* FAST-40 33MHz */ | |
65 | { 0x0c, 5000 } /* FAST-20 */ | |
66 | }; | |
67 | ||
68 | /* | |
69 | * Return the frequency in kHz corresponding to the given | |
70 | * sync period factor. | |
71 | */ | |
72 | static u_int | |
73 | ahc_calc_syncsrate(u_int period_factor) | |
74 | { | |
75 | int i; | |
1ff92730 | 76 | |
1ff92730 | 77 | /* See if the period is in the "exception" table */ |
6391a113 | 78 | for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
1ff92730 CH |
79 | |
80 | if (period_factor == scsi_syncrates[i].period_factor) { | |
81 | /* Period in kHz */ | |
82 | return (100000000 / scsi_syncrates[i].period); | |
83 | } | |
84 | } | |
85 | ||
86 | /* | |
87 | * Wasn't in the table, so use the standard | |
88 | * 4 times conversion. | |
89 | */ | |
90 | return (10000000 / (period_factor * 4 * 10)); | |
91 | } | |
92 | ||
d1d7b19d | 93 | static void |
6b3a8bbf | 94 | ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo) |
1da177e4 LT |
95 | { |
96 | u_int speed; | |
97 | u_int freq; | |
98 | u_int mb; | |
99 | ||
100 | speed = 3300; | |
101 | freq = 0; | |
102 | if (tinfo->offset != 0) { | |
1ff92730 | 103 | freq = ahc_calc_syncsrate(tinfo->period); |
1da177e4 LT |
104 | speed = freq; |
105 | } | |
106 | speed *= (0x01 << tinfo->width); | |
107 | mb = speed / 1000; | |
108 | if (mb > 0) | |
6b3a8bbf | 109 | seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); |
1da177e4 | 110 | else |
6b3a8bbf | 111 | seq_printf(m, "%dKB/s transfers", speed); |
1da177e4 LT |
112 | |
113 | if (freq != 0) { | |
6b3a8bbf | 114 | seq_printf(m, " (%d.%03dMHz%s, offset %d", |
1da177e4 LT |
115 | freq / 1000, freq % 1000, |
116 | (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 | |
117 | ? " DT" : "", tinfo->offset); | |
118 | } | |
119 | ||
120 | if (tinfo->width > 0) { | |
121 | if (freq != 0) { | |
6b3a8bbf | 122 | seq_printf(m, ", "); |
1da177e4 | 123 | } else { |
6b3a8bbf | 124 | seq_printf(m, " ("); |
1da177e4 | 125 | } |
6b3a8bbf | 126 | seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); |
1da177e4 | 127 | } else if (freq != 0) { |
6b3a8bbf | 128 | seq_printf(m, ")"); |
1da177e4 | 129 | } |
6b3a8bbf | 130 | seq_printf(m, "\n"); |
1da177e4 LT |
131 | } |
132 | ||
133 | static void | |
6b3a8bbf | 134 | ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m, |
1da177e4 LT |
135 | u_int our_id, char channel, u_int target_id, |
136 | u_int target_offset) | |
137 | { | |
b1abb4d6 | 138 | struct scsi_target *starget; |
1da177e4 LT |
139 | struct ahc_initiator_tinfo *tinfo; |
140 | struct ahc_tmode_tstate *tstate; | |
141 | int lun; | |
142 | ||
143 | tinfo = ahc_fetch_transinfo(ahc, channel, our_id, | |
144 | target_id, &tstate); | |
145 | if ((ahc->features & AHC_TWIN) != 0) | |
6b3a8bbf AV |
146 | seq_printf(m, "Channel %c ", channel); |
147 | seq_printf(m, "Target %d Negotiation Settings\n", target_id); | |
148 | seq_printf(m, "\tUser: "); | |
149 | ahc_format_transinfo(m, &tinfo->user); | |
b1abb4d6 | 150 | starget = ahc->platform_data->starget[target_offset]; |
c0df28cf | 151 | if (!starget) |
1da177e4 LT |
152 | return; |
153 | ||
6b3a8bbf AV |
154 | seq_printf(m, "\tGoal: "); |
155 | ahc_format_transinfo(m, &tinfo->goal); | |
156 | seq_printf(m, "\tCurr: "); | |
157 | ahc_format_transinfo(m, &tinfo->curr); | |
1da177e4 LT |
158 | |
159 | for (lun = 0; lun < AHC_NUM_LUNS; lun++) { | |
b1abb4d6 | 160 | struct scsi_device *sdev; |
1da177e4 | 161 | |
9080063f | 162 | sdev = scsi_device_lookup_by_target(starget, lun); |
1da177e4 | 163 | |
b1abb4d6 | 164 | if (sdev == NULL) |
1da177e4 LT |
165 | continue; |
166 | ||
6b3a8bbf | 167 | ahc_dump_device_state(m, sdev); |
1da177e4 LT |
168 | } |
169 | } | |
170 | ||
171 | static void | |
6b3a8bbf | 172 | ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev) |
1da177e4 | 173 | { |
b1abb4d6 JB |
174 | struct ahc_linux_device *dev = scsi_transport_device_data(sdev); |
175 | ||
6b3a8bbf | 176 | seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", |
b1abb4d6 JB |
177 | sdev->sdev_target->channel + 'A', |
178 | sdev->sdev_target->id, sdev->lun); | |
1da177e4 | 179 | |
6b3a8bbf AV |
180 | seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); |
181 | seq_printf(m, "\t\tCommands Active %d\n", dev->active); | |
182 | seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); | |
183 | seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); | |
184 | seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); | |
1da177e4 LT |
185 | } |
186 | ||
6b3a8bbf AV |
187 | int |
188 | ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) | |
1da177e4 | 189 | { |
6b3a8bbf | 190 | struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; |
1da177e4 LT |
191 | struct seeprom_descriptor sd; |
192 | int have_seeprom; | |
193 | u_long s; | |
194 | int paused; | |
195 | int written; | |
196 | ||
197 | /* Default to failure. */ | |
198 | written = -EINVAL; | |
199 | ahc_lock(ahc, &s); | |
200 | paused = ahc_is_paused(ahc); | |
201 | if (!paused) | |
202 | ahc_pause(ahc); | |
203 | ||
204 | if (length != sizeof(struct seeprom_config)) { | |
48813cf9 | 205 | printk("ahc_proc_write_seeprom: incorrect buffer size\n"); |
1da177e4 LT |
206 | goto done; |
207 | } | |
208 | ||
209 | have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); | |
210 | if (have_seeprom == 0) { | |
48813cf9 | 211 | printk("ahc_proc_write_seeprom: cksum verification failed\n"); |
1da177e4 LT |
212 | goto done; |
213 | } | |
214 | ||
215 | sd.sd_ahc = ahc; | |
216 | #if AHC_PCI_CONFIG > 0 | |
217 | if ((ahc->chip & AHC_PCI) != 0) { | |
218 | sd.sd_control_offset = SEECTL; | |
219 | sd.sd_status_offset = SEECTL; | |
220 | sd.sd_dataout_offset = SEECTL; | |
221 | if (ahc->flags & AHC_LARGE_SEEPROM) | |
222 | sd.sd_chip = C56_66; | |
223 | else | |
224 | sd.sd_chip = C46; | |
225 | sd.sd_MS = SEEMS; | |
226 | sd.sd_RDY = SEERDY; | |
227 | sd.sd_CS = SEECS; | |
228 | sd.sd_CK = SEECK; | |
229 | sd.sd_DO = SEEDO; | |
230 | sd.sd_DI = SEEDI; | |
231 | have_seeprom = ahc_acquire_seeprom(ahc, &sd); | |
232 | } else | |
233 | #endif | |
234 | if ((ahc->chip & AHC_VL) != 0) { | |
235 | sd.sd_control_offset = SEECTL_2840; | |
236 | sd.sd_status_offset = STATUS_2840; | |
237 | sd.sd_dataout_offset = STATUS_2840; | |
238 | sd.sd_chip = C46; | |
239 | sd.sd_MS = 0; | |
240 | sd.sd_RDY = EEPROM_TF; | |
241 | sd.sd_CS = CS_2840; | |
242 | sd.sd_CK = CK_2840; | |
243 | sd.sd_DO = DO_2840; | |
244 | sd.sd_DI = DI_2840; | |
245 | have_seeprom = TRUE; | |
246 | } else { | |
48813cf9 | 247 | printk("ahc_proc_write_seeprom: unsupported adapter type\n"); |
1da177e4 LT |
248 | goto done; |
249 | } | |
250 | ||
251 | if (!have_seeprom) { | |
48813cf9 | 252 | printk("ahc_proc_write_seeprom: No Serial EEPROM\n"); |
1da177e4 LT |
253 | goto done; |
254 | } else { | |
255 | u_int start_addr; | |
256 | ||
257 | if (ahc->seep_config == NULL) { | |
48813cf9 | 258 | ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC); |
1da177e4 | 259 | if (ahc->seep_config == NULL) { |
48813cf9 | 260 | printk("aic7xxx: Unable to allocate serial " |
1da177e4 LT |
261 | "eeprom buffer. Write failing\n"); |
262 | goto done; | |
263 | } | |
264 | } | |
48813cf9 | 265 | printk("aic7xxx: Writing Serial EEPROM\n"); |
1da177e4 LT |
266 | start_addr = 32 * (ahc->channel - 'A'); |
267 | ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, | |
268 | sizeof(struct seeprom_config)/2); | |
269 | ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, | |
270 | start_addr, sizeof(struct seeprom_config)/2); | |
271 | #if AHC_PCI_CONFIG > 0 | |
272 | if ((ahc->chip & AHC_VL) == 0) | |
273 | ahc_release_seeprom(&sd); | |
274 | #endif | |
275 | written = length; | |
276 | } | |
277 | ||
278 | done: | |
279 | if (!paused) | |
280 | ahc_unpause(ahc); | |
281 | ahc_unlock(ahc, &s); | |
282 | return (written); | |
283 | } | |
284 | ||
285 | /* | |
286 | * Return information to handle /proc support for the driver. | |
287 | */ | |
288 | int | |
6b3a8bbf | 289 | ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) |
1da177e4 | 290 | { |
3d65692a | 291 | struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; |
1da177e4 | 292 | char ahc_info[256]; |
1da177e4 LT |
293 | u_int max_targ; |
294 | u_int i; | |
1da177e4 | 295 | |
6b3a8bbf | 296 | seq_printf(m, "Adaptec AIC7xxx driver version: %s\n", |
1da177e4 | 297 | AIC7XXX_DRIVER_VERSION); |
6b3a8bbf | 298 | seq_printf(m, "%s\n", ahc->description); |
1da177e4 | 299 | ahc_controller_info(ahc, ahc_info); |
6b3a8bbf AV |
300 | seq_printf(m, "%s\n", ahc_info); |
301 | seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", | |
1da177e4 LT |
302 | ahc->scb_data->numscbs, AHC_NSEG); |
303 | ||
304 | ||
305 | if (ahc->seep_config == NULL) | |
6b3a8bbf | 306 | seq_printf(m, "No Serial EEPROM\n"); |
1da177e4 | 307 | else { |
6b3a8bbf | 308 | seq_printf(m, "Serial EEPROM:\n"); |
1da177e4 LT |
309 | for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { |
310 | if (((i % 8) == 0) && (i != 0)) { | |
6b3a8bbf | 311 | seq_printf(m, "\n"); |
1da177e4 | 312 | } |
6b3a8bbf | 313 | seq_printf(m, "0x%.4x ", |
1da177e4 LT |
314 | ((uint16_t*)ahc->seep_config)[i]); |
315 | } | |
6b3a8bbf | 316 | seq_printf(m, "\n"); |
1da177e4 | 317 | } |
6b3a8bbf | 318 | seq_printf(m, "\n"); |
1da177e4 | 319 | |
9080063f | 320 | max_targ = 16; |
1da177e4 | 321 | if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) |
9080063f | 322 | max_targ = 8; |
1da177e4 | 323 | |
9080063f | 324 | for (i = 0; i < max_targ; i++) { |
1da177e4 LT |
325 | u_int our_id; |
326 | u_int target_id; | |
327 | char channel; | |
328 | ||
329 | channel = 'A'; | |
330 | our_id = ahc->our_id; | |
331 | target_id = i; | |
332 | if (i > 7 && (ahc->features & AHC_TWIN) != 0) { | |
333 | channel = 'B'; | |
334 | our_id = ahc->our_id_b; | |
335 | target_id = i % 8; | |
336 | } | |
337 | ||
6b3a8bbf | 338 | ahc_dump_target_state(ahc, m, our_id, |
1da177e4 LT |
339 | channel, target_id, i); |
340 | } | |
6b3a8bbf | 341 | return 0; |
1da177e4 | 342 | } |