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/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 ahc_linux_device *dev); |
| 54 | static int ahc_proc_write_seeprom(struct ahc_softc *ahc, |
| 55 | char *buffer, int length); |
| 56 | |
| 57 | static void |
| 58 | copy_mem_info(struct info_str *info, char *data, int len) |
| 59 | { |
| 60 | if (info->pos + len > info->offset + info->length) |
| 61 | len = info->offset + info->length - info->pos; |
| 62 | |
| 63 | if (info->pos + len < info->offset) { |
| 64 | info->pos += len; |
| 65 | return; |
| 66 | } |
| 67 | |
| 68 | if (info->pos < info->offset) { |
| 69 | off_t partial; |
| 70 | |
| 71 | partial = info->offset - info->pos; |
| 72 | data += partial; |
| 73 | info->pos += partial; |
| 74 | len -= partial; |
| 75 | } |
| 76 | |
| 77 | if (len > 0) { |
| 78 | memcpy(info->buffer, data, len); |
| 79 | info->pos += len; |
| 80 | info->buffer += len; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | static int |
| 85 | copy_info(struct info_str *info, char *fmt, ...) |
| 86 | { |
| 87 | va_list args; |
| 88 | char buf[256]; |
| 89 | int len; |
| 90 | |
| 91 | va_start(args, fmt); |
| 92 | len = vsprintf(buf, fmt, args); |
| 93 | va_end(args); |
| 94 | |
| 95 | copy_mem_info(info, buf, len); |
| 96 | return (len); |
| 97 | } |
| 98 | |
| 99 | void |
| 100 | ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo) |
| 101 | { |
| 102 | u_int speed; |
| 103 | u_int freq; |
| 104 | u_int mb; |
| 105 | |
| 106 | speed = 3300; |
| 107 | freq = 0; |
| 108 | if (tinfo->offset != 0) { |
| 109 | freq = aic_calc_syncsrate(tinfo->period); |
| 110 | speed = freq; |
| 111 | } |
| 112 | speed *= (0x01 << tinfo->width); |
| 113 | mb = speed / 1000; |
| 114 | if (mb > 0) |
| 115 | copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000); |
| 116 | else |
| 117 | copy_info(info, "%dKB/s transfers", speed); |
| 118 | |
| 119 | if (freq != 0) { |
| 120 | copy_info(info, " (%d.%03dMHz%s, offset %d", |
| 121 | freq / 1000, freq % 1000, |
| 122 | (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0 |
| 123 | ? " DT" : "", tinfo->offset); |
| 124 | } |
| 125 | |
| 126 | if (tinfo->width > 0) { |
| 127 | if (freq != 0) { |
| 128 | copy_info(info, ", "); |
| 129 | } else { |
| 130 | copy_info(info, " ("); |
| 131 | } |
| 132 | copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width)); |
| 133 | } else if (freq != 0) { |
| 134 | copy_info(info, ")"); |
| 135 | } |
| 136 | copy_info(info, "\n"); |
| 137 | } |
| 138 | |
| 139 | static void |
| 140 | ahc_dump_target_state(struct ahc_softc *ahc, struct info_str *info, |
| 141 | u_int our_id, char channel, u_int target_id, |
| 142 | u_int target_offset) |
| 143 | { |
| 144 | struct ahc_linux_target *targ; |
| 145 | struct ahc_initiator_tinfo *tinfo; |
| 146 | struct ahc_tmode_tstate *tstate; |
| 147 | int lun; |
| 148 | |
| 149 | tinfo = ahc_fetch_transinfo(ahc, channel, our_id, |
| 150 | target_id, &tstate); |
| 151 | if ((ahc->features & AHC_TWIN) != 0) |
| 152 | copy_info(info, "Channel %c ", channel); |
| 153 | copy_info(info, "Target %d Negotiation Settings\n", target_id); |
| 154 | copy_info(info, "\tUser: "); |
| 155 | ahc_format_transinfo(info, &tinfo->user); |
| 156 | targ = ahc->platform_data->targets[target_offset]; |
| 157 | if (targ == NULL) |
| 158 | return; |
| 159 | |
| 160 | copy_info(info, "\tGoal: "); |
| 161 | ahc_format_transinfo(info, &tinfo->goal); |
| 162 | copy_info(info, "\tCurr: "); |
| 163 | ahc_format_transinfo(info, &tinfo->curr); |
| 164 | |
| 165 | for (lun = 0; lun < AHC_NUM_LUNS; lun++) { |
| 166 | struct ahc_linux_device *dev; |
| 167 | |
| 168 | dev = targ->devices[lun]; |
| 169 | |
| 170 | if (dev == NULL) |
| 171 | continue; |
| 172 | |
| 173 | ahc_dump_device_state(info, dev); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | static void |
| 178 | ahc_dump_device_state(struct info_str *info, struct ahc_linux_device *dev) |
| 179 | { |
| 180 | copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", |
| 181 | dev->target->channel + 'A', dev->target->target, dev->lun); |
| 182 | |
| 183 | copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); |
| 184 | copy_info(info, "\t\tCommands Active %d\n", dev->active); |
| 185 | copy_info(info, "\t\tCommand Openings %d\n", dev->openings); |
| 186 | copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); |
| 187 | copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); |
| 188 | } |
| 189 | |
| 190 | static int |
| 191 | ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) |
| 192 | { |
| 193 | struct seeprom_descriptor sd; |
| 194 | int have_seeprom; |
| 195 | u_long s; |
| 196 | int paused; |
| 197 | int written; |
| 198 | |
| 199 | /* Default to failure. */ |
| 200 | written = -EINVAL; |
| 201 | ahc_lock(ahc, &s); |
| 202 | paused = ahc_is_paused(ahc); |
| 203 | if (!paused) |
| 204 | ahc_pause(ahc); |
| 205 | |
| 206 | if (length != sizeof(struct seeprom_config)) { |
| 207 | printf("ahc_proc_write_seeprom: incorrect buffer size\n"); |
| 208 | goto done; |
| 209 | } |
| 210 | |
| 211 | have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); |
| 212 | if (have_seeprom == 0) { |
| 213 | printf("ahc_proc_write_seeprom: cksum verification failed\n"); |
| 214 | goto done; |
| 215 | } |
| 216 | |
| 217 | sd.sd_ahc = ahc; |
| 218 | #if AHC_PCI_CONFIG > 0 |
| 219 | if ((ahc->chip & AHC_PCI) != 0) { |
| 220 | sd.sd_control_offset = SEECTL; |
| 221 | sd.sd_status_offset = SEECTL; |
| 222 | sd.sd_dataout_offset = SEECTL; |
| 223 | if (ahc->flags & AHC_LARGE_SEEPROM) |
| 224 | sd.sd_chip = C56_66; |
| 225 | else |
| 226 | sd.sd_chip = C46; |
| 227 | sd.sd_MS = SEEMS; |
| 228 | sd.sd_RDY = SEERDY; |
| 229 | sd.sd_CS = SEECS; |
| 230 | sd.sd_CK = SEECK; |
| 231 | sd.sd_DO = SEEDO; |
| 232 | sd.sd_DI = SEEDI; |
| 233 | have_seeprom = ahc_acquire_seeprom(ahc, &sd); |
| 234 | } else |
| 235 | #endif |
| 236 | if ((ahc->chip & AHC_VL) != 0) { |
| 237 | sd.sd_control_offset = SEECTL_2840; |
| 238 | sd.sd_status_offset = STATUS_2840; |
| 239 | sd.sd_dataout_offset = STATUS_2840; |
| 240 | sd.sd_chip = C46; |
| 241 | sd.sd_MS = 0; |
| 242 | sd.sd_RDY = EEPROM_TF; |
| 243 | sd.sd_CS = CS_2840; |
| 244 | sd.sd_CK = CK_2840; |
| 245 | sd.sd_DO = DO_2840; |
| 246 | sd.sd_DI = DI_2840; |
| 247 | have_seeprom = TRUE; |
| 248 | } else { |
| 249 | printf("ahc_proc_write_seeprom: unsupported adapter type\n"); |
| 250 | goto done; |
| 251 | } |
| 252 | |
| 253 | if (!have_seeprom) { |
| 254 | printf("ahc_proc_write_seeprom: No Serial EEPROM\n"); |
| 255 | goto done; |
| 256 | } else { |
| 257 | u_int start_addr; |
| 258 | |
| 259 | if (ahc->seep_config == NULL) { |
| 260 | ahc->seep_config = malloc(sizeof(*ahc->seep_config), |
| 261 | M_DEVBUF, M_NOWAIT); |
| 262 | if (ahc->seep_config == NULL) { |
| 263 | printf("aic7xxx: Unable to allocate serial " |
| 264 | "eeprom buffer. Write failing\n"); |
| 265 | goto done; |
| 266 | } |
| 267 | } |
| 268 | printf("aic7xxx: Writing Serial EEPROM\n"); |
| 269 | start_addr = 32 * (ahc->channel - 'A'); |
| 270 | ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, |
| 271 | sizeof(struct seeprom_config)/2); |
| 272 | ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, |
| 273 | start_addr, sizeof(struct seeprom_config)/2); |
| 274 | #if AHC_PCI_CONFIG > 0 |
| 275 | if ((ahc->chip & AHC_VL) == 0) |
| 276 | ahc_release_seeprom(&sd); |
| 277 | #endif |
| 278 | written = length; |
| 279 | } |
| 280 | |
| 281 | done: |
| 282 | if (!paused) |
| 283 | ahc_unpause(ahc); |
| 284 | ahc_unlock(ahc, &s); |
| 285 | return (written); |
| 286 | } |
| 287 | |
| 288 | /* |
| 289 | * Return information to handle /proc support for the driver. |
| 290 | */ |
| 291 | int |
| 292 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) |
| 293 | ahc_linux_proc_info(char *buffer, char **start, off_t offset, |
| 294 | int length, int hostno, int inout) |
| 295 | #else |
| 296 | ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, |
| 297 | off_t offset, int length, int inout) |
| 298 | #endif |
| 299 | { |
| 300 | struct ahc_softc *ahc; |
| 301 | struct info_str info; |
| 302 | char ahc_info[256]; |
| 303 | u_long s; |
| 304 | u_int max_targ; |
| 305 | u_int i; |
| 306 | int retval; |
| 307 | |
| 308 | retval = -EINVAL; |
| 309 | ahc_list_lock(&s); |
| 310 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) |
| 311 | TAILQ_FOREACH(ahc, &ahc_tailq, links) { |
| 312 | if (ahc->platform_data->host->host_no == hostno) |
| 313 | break; |
| 314 | } |
| 315 | #else |
| 316 | ahc = ahc_find_softc(*(struct ahc_softc **)shost->hostdata); |
| 317 | #endif |
| 318 | |
| 319 | if (ahc == NULL) |
| 320 | goto done; |
| 321 | |
| 322 | /* Has data been written to the file? */ |
| 323 | if (inout == TRUE) { |
| 324 | retval = ahc_proc_write_seeprom(ahc, buffer, length); |
| 325 | goto done; |
| 326 | } |
| 327 | |
| 328 | if (start) |
| 329 | *start = buffer; |
| 330 | |
| 331 | info.buffer = buffer; |
| 332 | info.length = length; |
| 333 | info.offset = offset; |
| 334 | info.pos = 0; |
| 335 | |
| 336 | copy_info(&info, "Adaptec AIC7xxx driver version: %s\n", |
| 337 | AIC7XXX_DRIVER_VERSION); |
| 338 | copy_info(&info, "%s\n", ahc->description); |
| 339 | ahc_controller_info(ahc, ahc_info); |
| 340 | copy_info(&info, "%s\n", ahc_info); |
| 341 | copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", |
| 342 | ahc->scb_data->numscbs, AHC_NSEG); |
| 343 | |
| 344 | |
| 345 | if (ahc->seep_config == NULL) |
| 346 | copy_info(&info, "No Serial EEPROM\n"); |
| 347 | else { |
| 348 | copy_info(&info, "Serial EEPROM:\n"); |
| 349 | for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { |
| 350 | if (((i % 8) == 0) && (i != 0)) { |
| 351 | copy_info(&info, "\n"); |
| 352 | } |
| 353 | copy_info(&info, "0x%.4x ", |
| 354 | ((uint16_t*)ahc->seep_config)[i]); |
| 355 | } |
| 356 | copy_info(&info, "\n"); |
| 357 | } |
| 358 | copy_info(&info, "\n"); |
| 359 | |
| 360 | max_targ = 15; |
| 361 | if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) |
| 362 | max_targ = 7; |
| 363 | |
| 364 | for (i = 0; i <= max_targ; i++) { |
| 365 | u_int our_id; |
| 366 | u_int target_id; |
| 367 | char channel; |
| 368 | |
| 369 | channel = 'A'; |
| 370 | our_id = ahc->our_id; |
| 371 | target_id = i; |
| 372 | if (i > 7 && (ahc->features & AHC_TWIN) != 0) { |
| 373 | channel = 'B'; |
| 374 | our_id = ahc->our_id_b; |
| 375 | target_id = i % 8; |
| 376 | } |
| 377 | |
| 378 | ahc_dump_target_state(ahc, &info, our_id, |
| 379 | channel, target_id, i); |
| 380 | } |
| 381 | retval = info.pos > info.offset ? info.pos - info.offset : 0; |
| 382 | done: |
| 383 | ahc_list_unlock(&s); |
| 384 | return (retval); |
| 385 | } |