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, 53 struct scsi_device *dev); 54 static int ahc_proc_write_seeprom(struct ahc_softc *ahc, 55 char *buffer, int length); 56 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 */ 61 static struct { 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; 80 int num_syncrates; 81 82 num_syncrates = sizeof(scsi_syncrates) / sizeof(scsi_syncrates[0]); 83 /* See if the period is in the "exception" table */ 84 for (i = 0; i < num_syncrates; i++) { 85 86 if (period_factor == scsi_syncrates[i].period_factor) { 87 /* Period in kHz */ 88 return (100000000 / scsi_syncrates[i].period); 89 } 90 } 91 92 /* 93 * Wasn't in the table, so use the standard 94 * 4 times conversion. 95 */ 96 return (10000000 / (period_factor * 4 * 10)); 97 } 98 99 100 static void 101 copy_mem_info(struct info_str *info, char *data, int len) 102 { 103 if (info->pos + len > info->offset + info->length) 104 len = info->offset + info->length - info->pos; 105 106 if (info->pos + len < info->offset) { 107 info->pos += len; 108 return; 109 } 110 111 if (info->pos < info->offset) { 112 off_t partial; 113 114 partial = info->offset - info->pos; 115 data += partial; 116 info->pos += partial; 117 len -= partial; 118 } 119 120 if (len > 0) { 121 memcpy(info->buffer, data, len); 122 info->pos += len; 123 info->buffer += len; 124 } 125 } 126 127 static int 128 copy_info(struct info_str *info, char *fmt, ...) 129 { 130 va_list args; 131 char buf[256]; 132 int len; 133 134 va_start(args, fmt); 135 len = vsprintf(buf, fmt, args); 136 va_end(args); 137 138 copy_mem_info(info, buf, len); 139 return (len); 140 } 141 142 void 143 ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) 144 { 145 u_int speed; 146 u_int freq; 147 u_int mb; 148 149 speed = 3300; 150 freq = 0; 151 if (tinfo->offset != 0) { 152 freq = ahc_calc_syncsrate(tinfo->period); 153 speed = freq; 154 } 155 speed *= (0x01 << tinfo->width); 156 mb = speed / 1000; 157 if (mb > 0) 158 copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); 159 else 160 copy_info(info, "%dKB/s transfers", speed); 161 162 if (freq != 0) { 163 copy_info(info, " (%d.%03dMHz%s, offset %d", 164 freq / 1000, freq % 1000, 165 (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 166 ? " DT" : "", tinfo->offset); 167 } 168 169 if (tinfo->width > 0) { 170 if (freq != 0) { 171 copy_info(info, ", "); 172 } else { 173 copy_info(info, " ("); 174 } 175 copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); 176 } else if (freq != 0) { 177 copy_info(info, ")"); 178 } 179 copy_info(info, "\n"); 180 } 181 182 static void 183 ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, 184 u_int our_id, char channel, u_int target_id, 185 u_int target_offset) 186 { 187 struct ahc_linux_target *targ; 188 struct scsi_target *starget; 189 struct ahc_initiator_tinfo *tinfo; 190 struct ahc_tmode_tstate *tstate; 191 int lun; 192 193 tinfo = ahc_fetch_transinfo(ahc, channel, our_id, 194 target_id, &tstate); 195 if ((ahc->features & AHC_TWIN) != 0) 196 copy_info(info, "Channel %c ", channel); 197 copy_info(info, "Target %d Negotiation Settings\n", target_id); 198 copy_info(info, "\tUser: "); 199 ahc_format_transinfo(info, &tinfo->user); 200 starget = ahc->platform_data->starget[target_offset]; 201 if (!starget) 202 return; 203 targ = scsi_transport_target_data(starget); 204 205 copy_info(info, "\tGoal: "); 206 ahc_format_transinfo(info, &tinfo->goal); 207 copy_info(info, "\tCurr: "); 208 ahc_format_transinfo(info, &tinfo->curr); 209 210 for (lun = 0; lun < AHC_NUM_LUNS; lun++) { 211 struct scsi_device *sdev; 212 213 sdev = targ->sdev[lun]; 214 215 if (sdev == NULL) 216 continue; 217 218 ahc_dump_device_state(info, sdev); 219 } 220 } 221 222 static void 223 ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev) 224 { 225 struct ahc_linux_device *dev = scsi_transport_device_data(sdev); 226 227 copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", 228 sdev->sdev_target->channel + 'A', 229 sdev->sdev_target->id, sdev->lun); 230 231 copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); 232 copy_info(info, "\t\tCommands Active %d\n", dev->active); 233 copy_info(info, "\t\tCommand Openings %d\n", dev->openings); 234 copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); 235 copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); 236 } 237 238 static int 239 ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) 240 { 241 struct seeprom_descriptor sd; 242 int have_seeprom; 243 u_long s; 244 int paused; 245 int written; 246 247 /* Default to failure. */ 248 written = -EINVAL; 249 ahc_lock(ahc, &s); 250 paused = ahc_is_paused(ahc); 251 if (!paused) 252 ahc_pause(ahc); 253 254 if (length != sizeof(struct seeprom_config)) { 255 printf("ahc_proc_write_seeprom: incorrect buffer size\n"); 256 goto done; 257 } 258 259 have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); 260 if (have_seeprom == 0) { 261 printf("ahc_proc_write_seeprom: cksum verification failed\n"); 262 goto done; 263 } 264 265 sd.sd_ahc = ahc; 266 #if AHC_PCI_CONFIG > 0 267 if ((ahc->chip & AHC_PCI) != 0) { 268 sd.sd_control_offset = SEECTL; 269 sd.sd_status_offset = SEECTL; 270 sd.sd_dataout_offset = SEECTL; 271 if (ahc->flags & AHC_LARGE_SEEPROM) 272 sd.sd_chip = C56_66; 273 else 274 sd.sd_chip = C46; 275 sd.sd_MS = SEEMS; 276 sd.sd_RDY = SEERDY; 277 sd.sd_CS = SEECS; 278 sd.sd_CK = SEECK; 279 sd.sd_DO = SEEDO; 280 sd.sd_DI = SEEDI; 281 have_seeprom = ahc_acquire_seeprom(ahc, &sd); 282 } else 283 #endif 284 if ((ahc->chip & AHC_VL) != 0) { 285 sd.sd_control_offset = SEECTL_2840; 286 sd.sd_status_offset = STATUS_2840; 287 sd.sd_dataout_offset = STATUS_2840; 288 sd.sd_chip = C46; 289 sd.sd_MS = 0; 290 sd.sd_RDY = EEPROM_TF; 291 sd.sd_CS = CS_2840; 292 sd.sd_CK = CK_2840; 293 sd.sd_DO = DO_2840; 294 sd.sd_DI = DI_2840; 295 have_seeprom = TRUE; 296 } else { 297 printf("ahc_proc_write_seeprom: unsupported adapter type\n"); 298 goto done; 299 } 300 301 if (!have_seeprom) { 302 printf("ahc_proc_write_seeprom: No Serial EEPROM\n"); 303 goto done; 304 } else { 305 u_int start_addr; 306 307 if (ahc->seep_config == NULL) { 308 ahc->seep_config = malloc(sizeof(*ahc->seep_config), 309 M_DEVBUF, M_NOWAIT); 310 if (ahc->seep_config == NULL) { 311 printf("aic7xxx: Unable to allocate serial " 312 "eeprom buffer. Write failing\n"); 313 goto done; 314 } 315 } 316 printf("aic7xxx: Writing Serial EEPROM\n"); 317 start_addr = 32 * (ahc->channel - 'A'); 318 ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, 319 sizeof(struct seeprom_config)/2); 320 ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, 321 start_addr, sizeof(struct seeprom_config)/2); 322 #if AHC_PCI_CONFIG > 0 323 if ((ahc->chip & AHC_VL) == 0) 324 ahc_release_seeprom(&sd); 325 #endif 326 written = length; 327 } 328 329 done: 330 if (!paused) 331 ahc_unpause(ahc); 332 ahc_unlock(ahc, &s); 333 return (written); 334 } 335 336 /* 337 * Return information to handle /proc support for the driver. 338 */ 339 int 340 ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, 341 off_t offset, int length, int inout) 342 { 343 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; 344 struct info_str info; 345 char ahc_info[256]; 346 u_int max_targ; 347 u_int i; 348 int retval; 349 350 /* Has data been written to the file? */ 351 if (inout == TRUE) { 352 retval = ahc_proc_write_seeprom(ahc, buffer, length); 353 goto done; 354 } 355 356 if (start) 357 *start = buffer; 358 359 info.buffer = buffer; 360 info.length = length; 361 info.offset = offset; 362 info.pos = 0; 363 364 copy_info(&info, "Adaptec AIC7xxx driver version: %s\n", 365 AIC7XXX_DRIVER_VERSION); 366 copy_info(&info, "%s\n", ahc->description); 367 ahc_controller_info(ahc, ahc_info); 368 copy_info(&info, "%s\n", ahc_info); 369 copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", 370 ahc->scb_data->numscbs, AHC_NSEG); 371 372 373 if (ahc->seep_config == NULL) 374 copy_info(&info, "No Serial EEPROM\n"); 375 else { 376 copy_info(&info, "Serial EEPROM:\n"); 377 for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { 378 if (((i % 8) == 0) && (i != 0)) { 379 copy_info(&info, "\n"); 380 } 381 copy_info(&info, "0x%.4x ", 382 ((uint16_t*)ahc->seep_config)[i]); 383 } 384 copy_info(&info, "\n"); 385 } 386 copy_info(&info, "\n"); 387 388 max_targ = 15; 389 if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) 390 max_targ = 7; 391 392 for (i = 0; i <= max_targ; i++) { 393 u_int our_id; 394 u_int target_id; 395 char channel; 396 397 channel = 'A'; 398 our_id = ahc->our_id; 399 target_id = i; 400 if (i > 7 && (ahc->features & AHC_TWIN) != 0) { 401 channel = 'B'; 402 our_id = ahc->our_id_b; 403 target_id = i % 8; 404 } 405 406 ahc_dump_target_state(ahc, &info, our_id, 407 channel, target_id, i); 408 } 409 retval = info.pos > info.offset ? info.pos - info.offset : 0; 410 done: 411 return (retval); 412 } 413