Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 50 | u_int target_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | static void ahd_dump_device_state(struct info_str *info, |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 52 | struct scsi_device *sdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | static int ahd_proc_write_seeprom(struct ahd_softc *ahd, |
| 54 | char *buffer, int length); |
| 55 | |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 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 | */ |
Denys Vlasenko | 980b306 | 2008-04-25 04:36:01 +0200 | [diff] [blame] | 60 | static const struct { |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 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; |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 79 | |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 80 | /* See if the period is in the "exception" table */ |
Tobias Klauser | 6391a11 | 2006-06-08 22:23:48 -0700 | [diff] [blame] | 81 | for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) { |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Adrian Bunk | 289fe5b | 2006-10-20 14:47:57 -0700 | [diff] [blame] | 139 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Christoph Hellwig | 1ff9273 | 2005-08-19 18:57:13 +0200 | [diff] [blame] | 153 | freq = ahd_calc_syncsrate(tinfo->period); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 207 | u_int our_id, char channel, u_int target_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | { |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 209 | struct scsi_target *starget; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 219 | starget = ahd->platform_data->starget[target_id]; |
James Bottomley | 3f40d7d | 2005-08-03 13:25:10 -0500 | [diff] [blame] | 220 | if (starget == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
| 228 | for (lun = 0; lun < AHD_NUM_LUNS; lun++) { |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 229 | struct scsi_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 231 | dev = scsi_device_lookup_by_target(starget, lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
| 233 | if (dev == NULL) |
| 234 | continue; |
| 235 | |
| 236 | ahd_dump_device_state(info, dev); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | static void |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 241 | ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | { |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 243 | struct ahd_linux_device *dev = scsi_transport_device_data(sdev); |
| 244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", |
Hannes Reinecke | 73a2546 | 2005-07-22 16:44:04 +0200 | [diff] [blame] | 246 | sdev->sdev_target->channel + 'A', |
| 247 | sdev->sdev_target->id, sdev->lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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)) { |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 275 | printk("ahd_proc_write_seeprom: incorrect buffer size\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | goto done; |
| 277 | } |
| 278 | |
| 279 | have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer); |
| 280 | if (have_seeprom == 0) { |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 281 | printk("ahd_proc_write_seeprom: cksum verification failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | goto done; |
| 283 | } |
| 284 | |
| 285 | have_seeprom = ahd_acquire_seeprom(ahd); |
| 286 | if (!have_seeprom) { |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 287 | printk("ahd_proc_write_seeprom: No Serial EEPROM\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | goto done; |
| 289 | } else { |
| 290 | u_int start_addr; |
| 291 | |
| 292 | if (ahd->seep_config == NULL) { |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 293 | ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | if (ahd->seep_config == NULL) { |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 295 | printk("aic79xx: Unable to allocate serial " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | "eeprom buffer. Write failing\n"); |
| 297 | goto done; |
| 298 | } |
| 299 | } |
Pekka Enberg | 48813cf | 2010-07-14 13:12:57 +0300 | [diff] [blame^] | 300 | printk("aic79xx: Writing Serial EEPROM\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, |
| 323 | off_t offset, int length, int inout) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | { |
Christoph Hellwig | 85a4652 | 2005-08-15 13:28:46 +0200 | [diff] [blame] | 325 | struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | struct info_str info; |
| 327 | char ahd_info[256]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | u_int max_targ; |
| 329 | u_int i; |
| 330 | int retval; |
| 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 354 | max_targ = 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 372 | max_targ = 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 374 | for (i = 0; i < max_targ; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | |
| 376 | ahd_dump_target_state(ahd, &info, ahd->our_id, 'A', |
Hannes Reinecke | f89d0a4 | 2006-06-22 11:45:00 +0200 | [diff] [blame] | 377 | /*target_id*/i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | } |
| 379 | retval = info.pos > info.offset ? info.pos - info.offset : 0; |
| 380 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | return (retval); |
| 382 | } |