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 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 scsi_target *starget; 146 struct ahc_initiator_tinfo *tinfo; 147 struct ahc_tmode_tstate *tstate; 148 int lun; 149 150 tinfo = ahc_fetch_transinfo(ahc, channel, our_id, 151 target_id, &tstate); 152 if ((ahc->features & AHC_TWIN) != 0) 153 copy_info(info, "Channel %c ", channel); 154 copy_info(info, "Target %d Negotiation Settings\n", target_id); 155 copy_info(info, "\tUser: "); 156 ahc_format_transinfo(info, &tinfo->user); 157 starget = ahc->platform_data->starget[target_offset]; 158 targ = scsi_transport_target_data(starget); 159 if (targ == NULL) 160 return; 161 162 copy_info(info, "\tGoal: "); 163 ahc_format_transinfo(info, &tinfo->goal); 164 copy_info(info, "\tCurr: "); 165 ahc_format_transinfo(info, &tinfo->curr); 166 167 for (lun = 0; lun < AHC_NUM_LUNS; lun++) { 168 struct scsi_device *sdev; 169 170 sdev = targ->sdev[lun]; 171 172 if (sdev == NULL) 173 continue; 174 175 ahc_dump_device_state(info, sdev); 176 } 177 } 178 179 static void 180 ahc_dump_device_state(struct info_str *info, struct scsi_device *sdev) 181 { 182 struct ahc_linux_device *dev = scsi_transport_device_data(sdev); 183 184 copy_info(info, "\tChannel %c Target %d Lun %d Settings\n", 185 sdev->sdev_target->channel + 'A', 186 sdev->sdev_target->id, sdev->lun); 187 188 copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued); 189 copy_info(info, "\t\tCommands Active %d\n", dev->active); 190 copy_info(info, "\t\tCommand Openings %d\n", dev->openings); 191 copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags); 192 copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen); 193 } 194 195 static int 196 ahc_proc_write_seeprom(struct ahc_softc *ahc, char *buffer, int length) 197 { 198 struct seeprom_descriptor sd; 199 int have_seeprom; 200 u_long s; 201 int paused; 202 int written; 203 204 /* Default to failure. */ 205 written = -EINVAL; 206 ahc_lock(ahc, &s); 207 paused = ahc_is_paused(ahc); 208 if (!paused) 209 ahc_pause(ahc); 210 211 if (length != sizeof(struct seeprom_config)) { 212 printf("ahc_proc_write_seeprom: incorrect buffer size\n"); 213 goto done; 214 } 215 216 have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer); 217 if (have_seeprom == 0) { 218 printf("ahc_proc_write_seeprom: cksum verification failed\n"); 219 goto done; 220 } 221 222 sd.sd_ahc = ahc; 223 #if AHC_PCI_CONFIG > 0 224 if ((ahc->chip & AHC_PCI) != 0) { 225 sd.sd_control_offset = SEECTL; 226 sd.sd_status_offset = SEECTL; 227 sd.sd_dataout_offset = SEECTL; 228 if (ahc->flags & AHC_LARGE_SEEPROM) 229 sd.sd_chip = C56_66; 230 else 231 sd.sd_chip = C46; 232 sd.sd_MS = SEEMS; 233 sd.sd_RDY = SEERDY; 234 sd.sd_CS = SEECS; 235 sd.sd_CK = SEECK; 236 sd.sd_DO = SEEDO; 237 sd.sd_DI = SEEDI; 238 have_seeprom = ahc_acquire_seeprom(ahc, &sd); 239 } else 240 #endif 241 if ((ahc->chip & AHC_VL) != 0) { 242 sd.sd_control_offset = SEECTL_2840; 243 sd.sd_status_offset = STATUS_2840; 244 sd.sd_dataout_offset = STATUS_2840; 245 sd.sd_chip = C46; 246 sd.sd_MS = 0; 247 sd.sd_RDY = EEPROM_TF; 248 sd.sd_CS = CS_2840; 249 sd.sd_CK = CK_2840; 250 sd.sd_DO = DO_2840; 251 sd.sd_DI = DI_2840; 252 have_seeprom = TRUE; 253 } else { 254 printf("ahc_proc_write_seeprom: unsupported adapter type\n"); 255 goto done; 256 } 257 258 if (!have_seeprom) { 259 printf("ahc_proc_write_seeprom: No Serial EEPROM\n"); 260 goto done; 261 } else { 262 u_int start_addr; 263 264 if (ahc->seep_config == NULL) { 265 ahc->seep_config = malloc(sizeof(*ahc->seep_config), 266 M_DEVBUF, M_NOWAIT); 267 if (ahc->seep_config == NULL) { 268 printf("aic7xxx: Unable to allocate serial " 269 "eeprom buffer. Write failing\n"); 270 goto done; 271 } 272 } 273 printf("aic7xxx: Writing Serial EEPROM\n"); 274 start_addr = 32 * (ahc->channel - 'A'); 275 ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr, 276 sizeof(struct seeprom_config)/2); 277 ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config, 278 start_addr, sizeof(struct seeprom_config)/2); 279 #if AHC_PCI_CONFIG > 0 280 if ((ahc->chip & AHC_VL) == 0) 281 ahc_release_seeprom(&sd); 282 #endif 283 written = length; 284 } 285 286 done: 287 if (!paused) 288 ahc_unpause(ahc); 289 ahc_unlock(ahc, &s); 290 return (written); 291 } 292 293 /* 294 * Return information to handle /proc support for the driver. 295 */ 296 int 297 ahc_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start, 298 off_t offset, int length, int inout) 299 { 300 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; 301 struct info_str info; 302 char ahc_info[256]; 303 u_int max_targ; 304 u_int i; 305 int retval; 306 307 /* Has data been written to the file? */ 308 if (inout == TRUE) { 309 retval = ahc_proc_write_seeprom(ahc, buffer, length); 310 goto done; 311 } 312 313 if (start) 314 *start = buffer; 315 316 info.buffer = buffer; 317 info.length = length; 318 info.offset = offset; 319 info.pos = 0; 320 321 copy_info(&info, "Adaptec AIC7xxx driver version: %s\n", 322 AIC7XXX_DRIVER_VERSION); 323 copy_info(&info, "%s\n", ahc->description); 324 ahc_controller_info(ahc, ahc_info); 325 copy_info(&info, "%s\n", ahc_info); 326 copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n", 327 ahc->scb_data->numscbs, AHC_NSEG); 328 329 330 if (ahc->seep_config == NULL) 331 copy_info(&info, "No Serial EEPROM\n"); 332 else { 333 copy_info(&info, "Serial EEPROM:\n"); 334 for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) { 335 if (((i % 8) == 0) && (i != 0)) { 336 copy_info(&info, "\n"); 337 } 338 copy_info(&info, "0x%.4x ", 339 ((uint16_t*)ahc->seep_config)[i]); 340 } 341 copy_info(&info, "\n"); 342 } 343 copy_info(&info, "\n"); 344 345 max_targ = 15; 346 if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0) 347 max_targ = 7; 348 349 for (i = 0; i <= max_targ; i++) { 350 u_int our_id; 351 u_int target_id; 352 char channel; 353 354 channel = 'A'; 355 our_id = ahc->our_id; 356 target_id = i; 357 if (i > 7 && (ahc->features & AHC_TWIN) != 0) { 358 channel = 'B'; 359 our_id = ahc->our_id_b; 360 target_id = i % 8; 361 } 362 363 ahc_dump_target_state(ahc, &info, our_id, 364 channel, target_id, i); 365 } 366 retval = info.pos > info.offset ? info.pos - info.offset : 0; 367 done: 368 return (retval); 369 } 370