1 /* 2 * File...........: linux/drivers/s390/block/dasd_int.h 3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> 4 * Horst Hummel <Horst.Hummel@de.ibm.com> 5 * Martin Schwidefsky <schwidefsky@de.ibm.com> 6 * Bugreports.to..: <Linux390@de.ibm.com> 7 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 8 * 9 */ 10 11 #ifndef DASD_INT_H 12 #define DASD_INT_H 13 14 #ifdef __KERNEL__ 15 16 /* erp debugging in dasd.c and dasd_3990_erp.c */ 17 #define ERP_DEBUG 18 19 20 /* we keep old device allocation scheme; IOW, minors are still in 0..255 */ 21 #define DASD_PER_MAJOR (1U << (MINORBITS - DASD_PARTN_BITS)) 22 #define DASD_PARTN_MASK ((1 << DASD_PARTN_BITS) - 1) 23 24 /* 25 * States a dasd device can have: 26 * new: the dasd_device structure is allocated. 27 * known: the discipline for the device is identified. 28 * basic: the device can do basic i/o. 29 * unfmt: the device could not be analyzed (format is unknown). 30 * ready: partition detection is done and the device is can do block io. 31 * online: the device accepts requests from the block device queue. 32 * 33 * Things to do for startup state transitions: 34 * new -> known: find discipline for the device and create devfs entries. 35 * known -> basic: request irq line for the device. 36 * basic -> ready: do the initial analysis, e.g. format detection, 37 * do block device setup and detect partitions. 38 * ready -> online: schedule the device tasklet. 39 * Things to do for shutdown state transitions: 40 * online -> ready: just set the new device state. 41 * ready -> basic: flush requests from the block device layer, clear 42 * partition information and reset format information. 43 * basic -> known: terminate all requests and free irq. 44 * known -> new: remove devfs entries and forget discipline. 45 */ 46 47 #define DASD_STATE_NEW 0 48 #define DASD_STATE_KNOWN 1 49 #define DASD_STATE_BASIC 2 50 #define DASD_STATE_UNFMT 3 51 #define DASD_STATE_READY 4 52 #define DASD_STATE_ONLINE 5 53 54 #include <linux/module.h> 55 #include <linux/wait.h> 56 #include <linux/blkdev.h> 57 #include <linux/devfs_fs_kernel.h> 58 #include <linux/genhd.h> 59 #include <linux/hdreg.h> 60 #include <linux/interrupt.h> 61 #include <asm/ccwdev.h> 62 #include <linux/workqueue.h> 63 #include <asm/debug.h> 64 #include <asm/dasd.h> 65 #include <asm/idals.h> 66 67 /* 68 * SECTION: Type definitions 69 */ 70 struct dasd_device; 71 72 typedef enum { 73 dasd_era_fatal = -1, /* no chance to recover */ 74 dasd_era_none = 0, /* don't recover, everything alright */ 75 dasd_era_msg = 1, /* don't recover, just report... */ 76 dasd_era_recover = 2 /* recovery action recommended */ 77 } dasd_era_t; 78 79 /* BIT DEFINITIONS FOR SENSE DATA */ 80 #define DASD_SENSE_BIT_0 0x80 81 #define DASD_SENSE_BIT_1 0x40 82 #define DASD_SENSE_BIT_2 0x20 83 #define DASD_SENSE_BIT_3 0x10 84 85 /* 86 * SECTION: MACROs for klogd and s390 debug feature (dbf) 87 */ 88 #define DBF_DEV_EVENT(d_level, d_device, d_str, d_data...) \ 89 do { \ 90 debug_sprintf_event(d_device->debug_area, \ 91 d_level, \ 92 d_str "\n", \ 93 d_data); \ 94 } while(0) 95 96 #define DBF_DEV_EXC(d_level, d_device, d_str, d_data...) \ 97 do { \ 98 debug_sprintf_exception(d_device->debug_area, \ 99 d_level, \ 100 d_str "\n", \ 101 d_data); \ 102 } while(0) 103 104 #define DBF_EVENT(d_level, d_str, d_data...)\ 105 do { \ 106 debug_sprintf_event(dasd_debug_area, \ 107 d_level,\ 108 d_str "\n", \ 109 d_data); \ 110 } while(0) 111 112 #define DBF_EXC(d_level, d_str, d_data...)\ 113 do { \ 114 debug_sprintf_exception(dasd_debug_area, \ 115 d_level,\ 116 d_str "\n", \ 117 d_data); \ 118 } while(0) 119 120 /* definition of dbf debug levels */ 121 #define DBF_EMERG 0 /* system is unusable */ 122 #define DBF_ALERT 1 /* action must be taken immediately */ 123 #define DBF_CRIT 2 /* critical conditions */ 124 #define DBF_ERR 3 /* error conditions */ 125 #define DBF_WARNING 4 /* warning conditions */ 126 #define DBF_NOTICE 5 /* normal but significant condition */ 127 #define DBF_INFO 6 /* informational */ 128 #define DBF_DEBUG 6 /* debug-level messages */ 129 130 /* messages to be written via klogd and dbf */ 131 #define DEV_MESSAGE(d_loglevel,d_device,d_string,d_args...)\ 132 do { \ 133 printk(d_loglevel PRINTK_HEADER " %s: " d_string "\n", \ 134 d_device->cdev->dev.bus_id, d_args); \ 135 DBF_DEV_EVENT(DBF_ALERT, d_device, d_string, d_args); \ 136 } while(0) 137 138 #define MESSAGE(d_loglevel,d_string,d_args...)\ 139 do { \ 140 printk(d_loglevel PRINTK_HEADER " " d_string "\n", d_args); \ 141 DBF_EVENT(DBF_ALERT, d_string, d_args); \ 142 } while(0) 143 144 /* messages to be written via klogd only */ 145 #define DEV_MESSAGE_LOG(d_loglevel,d_device,d_string,d_args...)\ 146 do { \ 147 printk(d_loglevel PRINTK_HEADER " %s: " d_string "\n", \ 148 d_device->cdev->dev.bus_id, d_args); \ 149 } while(0) 150 151 #define MESSAGE_LOG(d_loglevel,d_string,d_args...)\ 152 do { \ 153 printk(d_loglevel PRINTK_HEADER " " d_string "\n", d_args); \ 154 } while(0) 155 156 struct dasd_ccw_req { 157 unsigned int magic; /* Eye catcher */ 158 struct list_head list; /* list_head for request queueing. */ 159 160 /* Where to execute what... */ 161 struct dasd_device *device; /* device the request is for */ 162 struct ccw1 *cpaddr; /* address of channel program */ 163 char status; /* status of this request */ 164 short retries; /* A retry counter */ 165 unsigned long flags; /* flags of this request */ 166 167 /* ... and how */ 168 unsigned long starttime; /* jiffies time of request start */ 169 int expires; /* expiration period in jiffies */ 170 char lpm; /* logical path mask */ 171 void *data; /* pointer to data area */ 172 173 /* these are important for recovering erroneous requests */ 174 struct irb irb; /* device status in case of an error */ 175 struct dasd_ccw_req *refers; /* ERP-chain queueing. */ 176 void *function; /* originating ERP action */ 177 178 /* these are for statistics only */ 179 unsigned long long buildclk; /* TOD-clock of request generation */ 180 unsigned long long startclk; /* TOD-clock of request start */ 181 unsigned long long stopclk; /* TOD-clock of request interrupt */ 182 unsigned long long endclk; /* TOD-clock of request termination */ 183 184 /* Callback that is called after reaching final status. */ 185 void (*callback)(struct dasd_ccw_req *, void *data); 186 void *callback_data; 187 }; 188 189 /* 190 * dasd_ccw_req -> status can be: 191 */ 192 #define DASD_CQR_FILLED 0x00 /* request is ready to be processed */ 193 #define DASD_CQR_QUEUED 0x01 /* request is queued to be processed */ 194 #define DASD_CQR_IN_IO 0x02 /* request is currently in IO */ 195 #define DASD_CQR_DONE 0x03 /* request is completed successfully */ 196 #define DASD_CQR_ERROR 0x04 /* request is completed with error */ 197 #define DASD_CQR_FAILED 0x05 /* request is finally failed */ 198 #define DASD_CQR_CLEAR 0x06 /* request is clear pending */ 199 200 /* per dasd_ccw_req flags */ 201 #define DASD_CQR_FLAGS_USE_ERP 0 /* use ERP for this request */ 202 #define DASD_CQR_FLAGS_FAILFAST 1 /* FAILFAST */ 203 204 /* Signature for error recovery functions. */ 205 typedef struct dasd_ccw_req *(*dasd_erp_fn_t) (struct dasd_ccw_req *); 206 207 /* 208 * the struct dasd_discipline is 209 * sth like a table of virtual functions, if you think of dasd_eckd 210 * inheriting dasd... 211 * no, currently we are not planning to reimplement the driver in C++ 212 */ 213 struct dasd_discipline { 214 struct module *owner; 215 char ebcname[8]; /* a name used for tagging and printks */ 216 char name[8]; /* a name used for tagging and printks */ 217 int max_blocks; /* maximum number of blocks to be chained */ 218 219 struct list_head list; /* used for list of disciplines */ 220 221 /* 222 * Device recognition functions. check_device is used to verify 223 * the sense data and the information returned by read device 224 * characteristics. It returns 0 if the discipline can be used 225 * for the device in question. 226 * do_analysis is used in the step from device state "basic" to 227 * state "accept". It returns 0 if the device can be made ready, 228 * it returns -EMEDIUMTYPE if the device can't be made ready or 229 * -EAGAIN if do_analysis started a ccw that needs to complete 230 * before the analysis may be repeated. 231 */ 232 int (*check_device)(struct dasd_device *); 233 int (*do_analysis) (struct dasd_device *); 234 235 /* 236 * Device operation functions. build_cp creates a ccw chain for 237 * a block device request, start_io starts the request and 238 * term_IO cancels it (e.g. in case of a timeout). format_device 239 * returns a ccw chain to be used to format the device. 240 */ 241 struct dasd_ccw_req *(*build_cp) (struct dasd_device *, 242 struct request *); 243 int (*start_IO) (struct dasd_ccw_req *); 244 int (*term_IO) (struct dasd_ccw_req *); 245 struct dasd_ccw_req *(*format_device) (struct dasd_device *, 246 struct format_data_t *); 247 int (*free_cp) (struct dasd_ccw_req *, struct request *); 248 /* 249 * Error recovery functions. examine_error() returns a value that 250 * indicates what to do for an error condition. If examine_error() 251 * returns 'dasd_era_recover' erp_action() is called to create a 252 * special error recovery ccw. erp_postaction() is called after 253 * an error recovery ccw has finished its execution. dump_sense 254 * is called for every error condition to print the sense data 255 * to the console. 256 */ 257 dasd_era_t(*examine_error) (struct dasd_ccw_req *, struct irb *); 258 dasd_erp_fn_t(*erp_action) (struct dasd_ccw_req *); 259 dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *); 260 void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *, 261 struct irb *); 262 263 /* i/o control functions. */ 264 int (*fill_geometry) (struct dasd_device *, struct hd_geometry *); 265 int (*fill_info) (struct dasd_device *, struct dasd_information2_t *); 266 int (*ioctl) (struct dasd_device *, unsigned int, void __user *); 267 }; 268 269 extern struct dasd_discipline *dasd_diag_discipline_pointer; 270 271 272 /* 273 * Notification numbers for extended error reporting notifications: 274 * The DASD_EER_DISABLE notification is sent before a dasd_device (and it's 275 * eer pointer) is freed. The error reporting module needs to do all necessary 276 * cleanup steps. 277 * The DASD_EER_TRIGGER notification sends the actual error reports (triggers). 278 */ 279 #define DASD_EER_DISABLE 0 280 #define DASD_EER_TRIGGER 1 281 282 /* Trigger IDs for extended error reporting DASD_EER_TRIGGER notification */ 283 #define DASD_EER_FATALERROR 1 284 #define DASD_EER_NOPATH 2 285 #define DASD_EER_STATECHANGE 3 286 #define DASD_EER_PPRCSUSPEND 4 287 288 struct dasd_device { 289 /* Block device stuff. */ 290 struct gendisk *gdp; 291 request_queue_t *request_queue; 292 spinlock_t request_queue_lock; 293 struct block_device *bdev; 294 unsigned int devindex; 295 unsigned long blocks; /* size of volume in blocks */ 296 unsigned int bp_block; /* bytes per block */ 297 unsigned int s2b_shift; /* log2 (bp_block/512) */ 298 unsigned long flags; /* per device flags */ 299 unsigned short features; /* copy of devmap-features (read-only!) */ 300 301 /* extended error reporting stuff (eer) */ 302 struct dasd_ccw_req *eer_cqr; 303 304 /* Device discipline stuff. */ 305 struct dasd_discipline *discipline; 306 struct dasd_discipline *base_discipline; 307 char *private; 308 309 /* Device state and target state. */ 310 int state, target; 311 int stopped; /* device (ccw_device_start) was stopped */ 312 313 /* Open and reference count. */ 314 atomic_t ref_count; 315 atomic_t open_count; 316 317 /* ccw queue and memory for static ccw/erp buffers. */ 318 struct list_head ccw_queue; 319 spinlock_t mem_lock; 320 void *ccw_mem; 321 void *erp_mem; 322 struct list_head ccw_chunks; 323 struct list_head erp_chunks; 324 325 atomic_t tasklet_scheduled; 326 struct tasklet_struct tasklet; 327 struct work_struct kick_work; 328 struct timer_list timer; 329 330 debug_info_t *debug_area; 331 332 struct ccw_device *cdev; 333 334 #ifdef CONFIG_DASD_PROFILE 335 struct dasd_profile_info_t profile; 336 #endif 337 }; 338 339 /* reasons why device (ccw_device_start) was stopped */ 340 #define DASD_STOPPED_NOT_ACC 1 /* not accessible */ 341 #define DASD_STOPPED_QUIESCE 2 /* Quiesced */ 342 #define DASD_STOPPED_PENDING 4 /* long busy */ 343 #define DASD_STOPPED_DC_WAIT 8 /* disconnected, wait */ 344 #define DASD_STOPPED_DC_EIO 16 /* disconnected, return -EIO */ 345 346 /* per device flags */ 347 #define DASD_FLAG_DSC_ERROR 2 /* return -EIO when disconnected */ 348 #define DASD_FLAG_OFFLINE 3 /* device is in offline processing */ 349 #define DASD_FLAG_EER_SNSS 4 /* A SNSS is required */ 350 #define DASD_FLAG_EER_IN_USE 5 /* A SNSS request is running */ 351 352 void dasd_put_device_wake(struct dasd_device *); 353 354 /* 355 * Reference count inliners 356 */ 357 static inline void 358 dasd_get_device(struct dasd_device *device) 359 { 360 atomic_inc(&device->ref_count); 361 } 362 363 static inline void 364 dasd_put_device(struct dasd_device *device) 365 { 366 if (atomic_dec_return(&device->ref_count) == 0) 367 dasd_put_device_wake(device); 368 } 369 370 /* 371 * The static memory in ccw_mem and erp_mem is managed by a sorted 372 * list of free memory chunks. 373 */ 374 struct dasd_mchunk 375 { 376 struct list_head list; 377 unsigned long size; 378 } __attribute__ ((aligned(8))); 379 380 static inline void 381 dasd_init_chunklist(struct list_head *chunk_list, void *mem, 382 unsigned long size) 383 { 384 struct dasd_mchunk *chunk; 385 386 INIT_LIST_HEAD(chunk_list); 387 chunk = (struct dasd_mchunk *) mem; 388 chunk->size = size - sizeof(struct dasd_mchunk); 389 list_add(&chunk->list, chunk_list); 390 } 391 392 static inline void * 393 dasd_alloc_chunk(struct list_head *chunk_list, unsigned long size) 394 { 395 struct dasd_mchunk *chunk, *tmp; 396 397 size = (size + 7L) & -8L; 398 list_for_each_entry(chunk, chunk_list, list) { 399 if (chunk->size < size) 400 continue; 401 if (chunk->size > size + sizeof(struct dasd_mchunk)) { 402 char *endaddr = (char *) (chunk + 1) + chunk->size; 403 tmp = (struct dasd_mchunk *) (endaddr - size) - 1; 404 tmp->size = size; 405 chunk->size -= size + sizeof(struct dasd_mchunk); 406 chunk = tmp; 407 } else 408 list_del(&chunk->list); 409 return (void *) (chunk + 1); 410 } 411 return NULL; 412 } 413 414 static inline void 415 dasd_free_chunk(struct list_head *chunk_list, void *mem) 416 { 417 struct dasd_mchunk *chunk, *tmp; 418 struct list_head *p, *left; 419 420 chunk = (struct dasd_mchunk *) 421 ((char *) mem - sizeof(struct dasd_mchunk)); 422 /* Find out the left neighbour in chunk_list. */ 423 left = chunk_list; 424 list_for_each(p, chunk_list) { 425 if (list_entry(p, struct dasd_mchunk, list) > chunk) 426 break; 427 left = p; 428 } 429 /* Try to merge with right neighbour = next element from left. */ 430 if (left->next != chunk_list) { 431 tmp = list_entry(left->next, struct dasd_mchunk, list); 432 if ((char *) (chunk + 1) + chunk->size == (char *) tmp) { 433 list_del(&tmp->list); 434 chunk->size += tmp->size + sizeof(struct dasd_mchunk); 435 } 436 } 437 /* Try to merge with left neighbour. */ 438 if (left != chunk_list) { 439 tmp = list_entry(left, struct dasd_mchunk, list); 440 if ((char *) (tmp + 1) + tmp->size == (char *) chunk) { 441 tmp->size += chunk->size + sizeof(struct dasd_mchunk); 442 return; 443 } 444 } 445 __list_add(&chunk->list, left, left->next); 446 } 447 448 /* 449 * Check if bsize is in { 512, 1024, 2048, 4096 } 450 */ 451 static inline int 452 dasd_check_blocksize(int bsize) 453 { 454 if (bsize < 512 || bsize > 4096 || (bsize & (bsize - 1)) != 0) 455 return -EMEDIUMTYPE; 456 return 0; 457 } 458 459 /* externals in dasd.c */ 460 #define DASD_PROFILE_ON 1 461 #define DASD_PROFILE_OFF 0 462 463 extern debug_info_t *dasd_debug_area; 464 extern struct dasd_profile_info_t dasd_global_profile; 465 extern unsigned int dasd_profile_level; 466 extern struct block_device_operations dasd_device_operations; 467 468 extern kmem_cache_t *dasd_page_cache; 469 470 struct dasd_ccw_req * 471 dasd_kmalloc_request(char *, int, int, struct dasd_device *); 472 struct dasd_ccw_req * 473 dasd_smalloc_request(char *, int, int, struct dasd_device *); 474 void dasd_kfree_request(struct dasd_ccw_req *, struct dasd_device *); 475 void dasd_sfree_request(struct dasd_ccw_req *, struct dasd_device *); 476 477 static inline int 478 dasd_kmalloc_set_cda(struct ccw1 *ccw, void *cda, struct dasd_device *device) 479 { 480 return set_normalized_cda(ccw, cda); 481 } 482 483 struct dasd_device *dasd_alloc_device(void); 484 void dasd_free_device(struct dasd_device *); 485 486 void dasd_enable_device(struct dasd_device *); 487 void dasd_set_target_state(struct dasd_device *, int); 488 void dasd_kick_device(struct dasd_device *); 489 490 void dasd_add_request_head(struct dasd_ccw_req *); 491 void dasd_add_request_tail(struct dasd_ccw_req *); 492 int dasd_start_IO(struct dasd_ccw_req *); 493 int dasd_term_IO(struct dasd_ccw_req *); 494 void dasd_schedule_bh(struct dasd_device *); 495 int dasd_sleep_on(struct dasd_ccw_req *); 496 int dasd_sleep_on_immediatly(struct dasd_ccw_req *); 497 int dasd_sleep_on_interruptible(struct dasd_ccw_req *); 498 void dasd_set_timer(struct dasd_device *, int); 499 void dasd_clear_timer(struct dasd_device *); 500 int dasd_cancel_req(struct dasd_ccw_req *); 501 int dasd_generic_probe (struct ccw_device *, struct dasd_discipline *); 502 void dasd_generic_remove (struct ccw_device *cdev); 503 int dasd_generic_set_online(struct ccw_device *, struct dasd_discipline *); 504 int dasd_generic_set_offline (struct ccw_device *cdev); 505 int dasd_generic_notify(struct ccw_device *, int); 506 void dasd_generic_auto_online (struct ccw_driver *); 507 508 /* externals in dasd_devmap.c */ 509 extern int dasd_max_devindex; 510 extern int dasd_probeonly; 511 extern int dasd_autodetect; 512 513 int dasd_devmap_init(void); 514 void dasd_devmap_exit(void); 515 516 struct dasd_device *dasd_create_device(struct ccw_device *); 517 void dasd_delete_device(struct dasd_device *); 518 519 int dasd_get_feature(struct ccw_device *, int); 520 int dasd_set_feature(struct ccw_device *, int, int); 521 522 int dasd_add_sysfs_files(struct ccw_device *); 523 void dasd_remove_sysfs_files(struct ccw_device *); 524 525 struct dasd_device *dasd_device_from_cdev(struct ccw_device *); 526 struct dasd_device *dasd_device_from_devindex(int); 527 528 int dasd_parse(void); 529 int dasd_busid_known(char *); 530 531 /* externals in dasd_gendisk.c */ 532 int dasd_gendisk_init(void); 533 void dasd_gendisk_exit(void); 534 int dasd_gendisk_alloc(struct dasd_device *); 535 void dasd_gendisk_free(struct dasd_device *); 536 int dasd_scan_partitions(struct dasd_device *); 537 void dasd_destroy_partitions(struct dasd_device *); 538 539 /* externals in dasd_ioctl.c */ 540 int dasd_ioctl(struct inode *, struct file *, unsigned int, unsigned long); 541 long dasd_compat_ioctl(struct file *, unsigned int, unsigned long); 542 543 /* externals in dasd_proc.c */ 544 int dasd_proc_init(void); 545 void dasd_proc_exit(void); 546 547 /* externals in dasd_erp.c */ 548 struct dasd_ccw_req *dasd_default_erp_action(struct dasd_ccw_req *); 549 struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *); 550 struct dasd_ccw_req *dasd_alloc_erp_request(char *, int, int, 551 struct dasd_device *); 552 void dasd_free_erp_request(struct dasd_ccw_req *, struct dasd_device *); 553 void dasd_log_sense(struct dasd_ccw_req *, struct irb *); 554 void dasd_log_ccw(struct dasd_ccw_req *, int, __u32); 555 556 /* externals in dasd_3370_erp.c */ 557 dasd_era_t dasd_3370_erp_examine(struct dasd_ccw_req *, struct irb *); 558 559 /* externals in dasd_3990_erp.c */ 560 dasd_era_t dasd_3990_erp_examine(struct dasd_ccw_req *, struct irb *); 561 struct dasd_ccw_req *dasd_3990_erp_action(struct dasd_ccw_req *); 562 563 /* externals in dasd_9336_erp.c */ 564 dasd_era_t dasd_9336_erp_examine(struct dasd_ccw_req *, struct irb *); 565 566 /* externals in dasd_9336_erp.c */ 567 dasd_era_t dasd_9343_erp_examine(struct dasd_ccw_req *, struct irb *); 568 struct dasd_ccw_req *dasd_9343_erp_action(struct dasd_ccw_req *); 569 570 /* externals in dasd_eer.c */ 571 #ifdef CONFIG_DASD_EER 572 int dasd_eer_init(void); 573 void dasd_eer_exit(void); 574 int dasd_eer_enable(struct dasd_device *); 575 void dasd_eer_disable(struct dasd_device *); 576 void dasd_eer_write(struct dasd_device *, struct dasd_ccw_req *cqr, 577 unsigned int id); 578 void dasd_eer_snss(struct dasd_device *); 579 580 static inline int dasd_eer_enabled(struct dasd_device *device) 581 { 582 return device->eer_cqr != NULL; 583 } 584 #else 585 #define dasd_eer_init() (0) 586 #define dasd_eer_exit() do { } while (0) 587 #define dasd_eer_enable(d) (0) 588 #define dasd_eer_disable(d) do { } while (0) 589 #define dasd_eer_write(d,c,i) do { } while (0) 590 #define dasd_eer_snss(d) do { } while (0) 591 #define dasd_eer_enabled(d) (0) 592 #endif /* CONFIG_DASD_ERR */ 593 594 #endif /* __KERNEL__ */ 595 596 #endif /* DASD_H */ 597 598 /* 599 * Overrides for Emacs so that we follow Linus's tabbing style. 600 * Emacs will notice this stuff at the end of the file and automatically 601 * adjust the settings for this buffer only. This must remain at the end 602 * of the file. 603 * --------------------------------------------------------------------------- 604 * Local variables: 605 * c-indent-level: 4 606 * c-brace-imaginary-offset: 0 607 * c-brace-offset: -4 608 * c-argdecl-indent: 4 609 * c-label-offset: -4 610 * c-continued-statement-offset: 4 611 * c-continued-brace-offset: 0 612 * indent-tabs-mode: 1 613 * tab-width: 8 614 * End: 615 */ 616