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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 | ||
1da177e4 | 45 | static void ahd_dump_target_state(struct ahd_softc *ahd, |
f6f83a6c | 46 | struct seq_file *m, |
1da177e4 | 47 | u_int our_id, char channel, |
f89d0a4e | 48 | u_int target_id); |
f6f83a6c | 49 | static void ahd_dump_device_state(struct seq_file *m, |
73a25462 | 50 | struct scsi_device *sdev); |
1da177e4 | 51 | |
1ff92730 CH |
52 | /* |
53 | * Table of syncrates that don't follow the "divisible by 4" | |
54 | * rule. This table will be expanded in future SCSI specs. | |
55 | */ | |
980b306a | 56 | static const struct { |
1ff92730 CH |
57 | u_int period_factor; |
58 | u_int period; /* in 100ths of ns */ | |
59 | } scsi_syncrates[] = { | |
60 | { 0x08, 625 }, /* FAST-160 */ | |
61 | { 0x09, 1250 }, /* FAST-80 */ | |
62 | { 0x0a, 2500 }, /* FAST-40 40MHz */ | |
63 | { 0x0b, 3030 }, /* FAST-40 33MHz */ | |
64 | { 0x0c, 5000 } /* FAST-20 */ | |
65 | }; | |
66 | ||
67 | /* | |
68 | * Return the frequency in kHz corresponding to the given | |
69 | * sync period factor. | |
70 | */ | |
71 | static u_int | |
72 | ahd_calc_syncsrate(u_int period_factor) | |
73 | { | |
74 | int i; | |
1ff92730 | 75 | |
1ff92730 | 76 | /* See if the period is in the "exception" table */ |
6391a113 | 77 | for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
1ff92730 CH |
78 | |
79 | if (period_factor == scsi_syncrates[i].period_factor) { | |
80 | /* Period in kHz */ | |
81 | return (100000000 / scsi_syncrates[i].period); | |
82 | } | |
83 | } | |
84 | ||
85 | /* | |
86 | * Wasn't in the table, so use the standard | |
87 | * 4 times conversion. | |
88 | */ | |
89 | return (10000000 / (period_factor * 4 * 10)); | |
90 | } | |
91 | ||
289fe5b1 | 92 | static void |
f6f83a6c | 93 | ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo) |
1da177e4 LT |
94 | { |
95 | u_int speed; | |
96 | u_int freq; | |
97 | u_int mb; | |
98 | ||
99 | if (tinfo->period == AHD_PERIOD_UNKNOWN) { | |
91c40f24 | 100 | seq_puts(m, "Renegotiation Pending\n"); |
1da177e4 LT |
101 | return; |
102 | } | |
103 | speed = 3300; | |
104 | freq = 0; | |
105 | if (tinfo->offset != 0) { | |
1ff92730 | 106 | freq = ahd_calc_syncsrate(tinfo->period); |
1da177e4 LT |
107 | speed = freq; |
108 | } | |
109 | speed *= (0x01 << tinfo->width); | |
110 | mb = speed / 1000; | |
111 | if (mb > 0) | |
f6f83a6c | 112 | seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000); |
1da177e4 | 113 | else |
f6f83a6c | 114 | seq_printf(m, "%dKB/s transfers", speed); |
1da177e4 LT |
115 | |
116 | if (freq != 0) { | |
117 | int printed_options; | |
118 | ||
119 | printed_options = 0; | |
f6f83a6c | 120 | seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000); |
1da177e4 | 121 | if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) { |
91c40f24 | 122 | seq_puts(m, " RDSTRM"); |
1da177e4 LT |
123 | printed_options++; |
124 | } | |
125 | if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) { | |
91c40f24 | 126 | seq_puts(m, printed_options ? "|DT" : " DT"); |
1da177e4 LT |
127 | printed_options++; |
128 | } | |
129 | if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { | |
91c40f24 | 130 | seq_puts(m, printed_options ? "|IU" : " IU"); |
1da177e4 LT |
131 | printed_options++; |
132 | } | |
133 | if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) { | |
91c40f24 | 134 | seq_puts(m, printed_options ? "|RTI" : " RTI"); |
1da177e4 LT |
135 | printed_options++; |
136 | } | |
137 | if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) { | |
91c40f24 | 138 | seq_puts(m, printed_options ? "|QAS" : " QAS"); |
1da177e4 LT |
139 | printed_options++; |
140 | } | |
141 | } | |
142 | ||
143 | if (tinfo->width > 0) { | |
144 | if (freq != 0) { | |
91c40f24 | 145 | seq_puts(m, ", "); |
1da177e4 | 146 | } else { |
91c40f24 | 147 | seq_puts(m, " ("); |
1da177e4 | 148 | } |
f6f83a6c | 149 | seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width)); |
1da177e4 | 150 | } else if (freq != 0) { |
f50332ff | 151 | seq_putc(m, ')'); |
1da177e4 | 152 | } |
f50332ff | 153 | seq_putc(m, '\n'); |
1da177e4 LT |
154 | } |
155 | ||
156 | static void | |
f6f83a6c | 157 | ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m, |
f89d0a4e | 158 | u_int our_id, char channel, u_int target_id) |
1da177e4 | 159 | { |
73a25462 | 160 | struct scsi_target *starget; |
1da177e4 LT |
161 | struct ahd_initiator_tinfo *tinfo; |
162 | struct ahd_tmode_tstate *tstate; | |
163 | int lun; | |
164 | ||
165 | tinfo = ahd_fetch_transinfo(ahd, channel, our_id, | |
166 | target_id, &tstate); | |
f6f83a6c | 167 | seq_printf(m, "Target %d Negotiation Settings\n", target_id); |
91c40f24 | 168 | seq_puts(m, "\tUser: "); |
f6f83a6c | 169 | ahd_format_transinfo(m, &tinfo->user); |
f89d0a4e | 170 | starget = ahd->platform_data->starget[target_id]; |
3f40d7d6 | 171 | if (starget == NULL) |
1da177e4 LT |
172 | return; |
173 | ||
91c40f24 | 174 | seq_puts(m, "\tGoal: "); |
f6f83a6c | 175 | ahd_format_transinfo(m, &tinfo->goal); |
91c40f24 | 176 | seq_puts(m, "\tCurr: "); |
f6f83a6c | 177 | ahd_format_transinfo(m, &tinfo->curr); |
1da177e4 LT |
178 | |
179 | for (lun = 0; lun < AHD_NUM_LUNS; lun++) { | |
73a25462 | 180 | struct scsi_device *dev; |
1da177e4 | 181 | |
f89d0a4e | 182 | dev = scsi_device_lookup_by_target(starget, lun); |
1da177e4 LT |
183 | |
184 | if (dev == NULL) | |
185 | continue; | |
186 | ||
f6f83a6c | 187 | ahd_dump_device_state(m, dev); |
1da177e4 LT |
188 | } |
189 | } | |
190 | ||
191 | static void | |
f6f83a6c | 192 | ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev) |
1da177e4 | 193 | { |
73a25462 HR |
194 | struct ahd_linux_device *dev = scsi_transport_device_data(sdev); |
195 | ||
f6f83a6c | 196 | seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n", |
73a25462 | 197 | sdev->sdev_target->channel + 'A', |
9cb78c16 | 198 | sdev->sdev_target->id, (u8)sdev->lun); |
1da177e4 | 199 | |
f6f83a6c AV |
200 | seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued); |
201 | seq_printf(m, "\t\tCommands Active %d\n", dev->active); | |
202 | seq_printf(m, "\t\tCommand Openings %d\n", dev->openings); | |
203 | seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags); | |
204 | seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); | |
1da177e4 LT |
205 | } |
206 | ||
f6f83a6c AV |
207 | int |
208 | ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length) | |
1da177e4 | 209 | { |
f6f83a6c | 210 | struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
1da177e4 LT |
211 | ahd_mode_state saved_modes; |
212 | int have_seeprom; | |
213 | u_long s; | |
214 | int paused; | |
215 | int written; | |
216 | ||
217 | /* Default to failure. */ | |
218 | written = -EINVAL; | |
219 | ahd_lock(ahd, &s); | |
220 | paused = ahd_is_paused(ahd); | |
221 | if (!paused) | |
222 | ahd_pause(ahd); | |
223 | ||
224 | saved_modes = ahd_save_modes(ahd); | |
225 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); | |
226 | if (length != sizeof(struct seeprom_config)) { | |
48813cf9 | 227 | printk("ahd_proc_write_seeprom: incorrect buffer size\n"); |
1da177e4 LT |
228 | goto done; |
229 | } | |
230 | ||
231 | have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); | |
232 | if (have_seeprom == 0) { | |
48813cf9 | 233 | printk("ahd_proc_write_seeprom: cksum verification failed\n"); |
1da177e4 LT |
234 | goto done; |
235 | } | |
236 | ||
237 | have_seeprom = ahd_acquire_seeprom(ahd); | |
238 | if (!have_seeprom) { | |
48813cf9 | 239 | printk("ahd_proc_write_seeprom: No Serial EEPROM\n"); |
1da177e4 LT |
240 | goto done; |
241 | } else { | |
242 | u_int start_addr; | |
243 | ||
244 | if (ahd->seep_config == NULL) { | |
48813cf9 | 245 | ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC); |
1da177e4 | 246 | if (ahd->seep_config == NULL) { |
48813cf9 | 247 | printk("aic79xx: Unable to allocate serial " |
1da177e4 LT |
248 | "eeprom buffer. Write failing\n"); |
249 | goto done; | |
250 | } | |
251 | } | |
48813cf9 | 252 | printk("aic79xx: Writing Serial EEPROM\n"); |
1da177e4 LT |
253 | start_addr = 32 * (ahd->channel - 'A'); |
254 | ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr, | |
255 | sizeof(struct seeprom_config)/2); | |
256 | ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config, | |
257 | start_addr, sizeof(struct seeprom_config)/2, | |
258 | /*ByteStream*/FALSE); | |
259 | ahd_release_seeprom(ahd); | |
260 | written = length; | |
261 | } | |
262 | ||
263 | done: | |
264 | ahd_restore_modes(ahd, saved_modes); | |
265 | if (!paused) | |
266 | ahd_unpause(ahd); | |
267 | ahd_unlock(ahd, &s); | |
268 | return (written); | |
269 | } | |
270 | /* | |
271 | * Return information to handle /proc support for the driver. | |
272 | */ | |
273 | int | |
f6f83a6c | 274 | ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost) |
1da177e4 | 275 | { |
85a46523 | 276 | struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
1da177e4 | 277 | char ahd_info[256]; |
1da177e4 LT |
278 | u_int max_targ; |
279 | u_int i; | |
1da177e4 | 280 | |
f6f83a6c | 281 | seq_printf(m, "Adaptec AIC79xx driver version: %s\n", |
1da177e4 | 282 | AIC79XX_DRIVER_VERSION); |
f6f83a6c | 283 | seq_printf(m, "%s\n", ahd->description); |
1da177e4 | 284 | ahd_controller_info(ahd, ahd_info); |
f6f83a6c AV |
285 | seq_printf(m, "%s\n", ahd_info); |
286 | seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n", | |
1da177e4 LT |
287 | ahd->scb_data.numscbs, AHD_NSEG); |
288 | ||
f89d0a4e | 289 | max_targ = 16; |
1da177e4 LT |
290 | |
291 | if (ahd->seep_config == NULL) | |
91c40f24 | 292 | seq_puts(m, "No Serial EEPROM\n"); |
1da177e4 | 293 | else { |
91c40f24 | 294 | seq_puts(m, "Serial EEPROM:\n"); |
1da177e4 LT |
295 | for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) { |
296 | if (((i % 8) == 0) && (i != 0)) { | |
f50332ff | 297 | seq_putc(m, '\n'); |
1da177e4 | 298 | } |
f6f83a6c | 299 | seq_printf(m, "0x%.4x ", |
1da177e4 LT |
300 | ((uint16_t*)ahd->seep_config)[i]); |
301 | } | |
f50332ff | 302 | seq_putc(m, '\n'); |
1da177e4 | 303 | } |
f50332ff | 304 | seq_putc(m, '\n'); |
1da177e4 LT |
305 | |
306 | if ((ahd->features & AHD_WIDE) == 0) | |
f89d0a4e | 307 | max_targ = 8; |
1da177e4 | 308 | |
f89d0a4e | 309 | for (i = 0; i < max_targ; i++) { |
1da177e4 | 310 | |
f6f83a6c | 311 | ahd_dump_target_state(ahd, m, ahd->our_id, 'A', |
f89d0a4e | 312 | /*target_id*/i); |
1da177e4 | 313 | } |
f6f83a6c | 314 | return 0; |
1da177e4 | 315 | } |