drivers/scsi/gdth.c

   1 /************************************************************************
   2  * Linux driver for                                                     *
   3  * ICP vortex GmbH:    GDT ISA/EISA/PCI Disk Array Controllers          *
   4  * Intel Corporation:  Storage RAID Controllers                         *
   5  *                                                                      *
   6  * gdth.c                                                               *
   7  * Copyright (C) 1995-04 ICP vortex GmbH, Achim Leubner                 *
   8  * Copyright (C) 2002-04 Intel Corporation                              *
   9  * Copyright (C) 2003-04 Adaptec Inc.                                   *
  10  * <achim_leubner@adaptec.com>                                          *
  11  *                                                                      *
  12  * Additions/Fixes:                                                     *
  13  * Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>               *
  14  * Johannes Dinner <johannes_dinner@adaptec.com>                        *
  15  *                                                                      *
  16  * This program is free software; you can redistribute it and/or modify *
  17  * it under the terms of the GNU General Public License as published    *
  18  * by the Free Software Foundation; either version 2 of the License,    *
  19  * or (at your option) any later version.                               *
  20  *                                                                      *
  21  * This program is distributed in the hope that it will be useful,      *
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the         *
  24  * GNU General Public License for more details.                         *
  25  *                                                                      *
  26  * You should have received a copy of the GNU General Public License    *
  27  * along with this kernel; if not, write to the Free Software           *
  28  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.            *
  29  *                                                                      *
  30  * Linux kernel 2.2.x, 2.4.x, 2.6.x supported                           *
  31  *                                                                      *
  32  * $Log: gdth.c,v $
  33  * Revision 1.73  2004/03/31 13:33:03  achim
  34  * Special command 0xfd implemented to detect 64-bit DMA support
  35  *
  36  * Revision 1.72  2004/03/17 08:56:04  achim
  37  * 64-bit DMA only enabled if FW >= x.43
  38  *
  39  * Revision 1.71  2004/03/05 15:51:29  achim
  40  * Screen service: separate message buffer, bugfixes
  41  *
  42  * Revision 1.70  2004/02/27 12:19:07  achim
  43  * Bugfix: Reset bit in config (0xfe) call removed
  44  *
  45  * Revision 1.69  2004/02/20 09:50:24  achim
  46  * Compatibility changes for kernels < 2.4.20
  47  * Bugfix screen service command size
  48  * pci_set_dma_mask() error handling added
  49  *
  50  * Revision 1.68  2004/02/19 15:46:54  achim
  51  * 64-bit DMA bugfixes
  52  * Drive size bugfix for drives > 1TB
  53  *
  54  * Revision 1.67  2004/01/14 13:11:57  achim
  55  * Tool access over /proc no longer supported
  56  * Bugfixes IOCTLs
  57  *
  58  * Revision 1.66  2003/12/19 15:04:06  achim
  59  * Bugfixes support for drives > 2TB
  60  *
  61  * Revision 1.65  2003/12/15 11:21:56  achim
  62  * 64-bit DMA support added
  63  * Support for drives > 2 TB implemented
  64  * Kernels 2.2.x, 2.4.x, 2.6.x supported
  65  *
  66  * Revision 1.64  2003/09/17 08:30:26  achim
  67  * EISA/ISA controller scan disabled
  68  * Command line switch probe_eisa_isa added
  69  *
  70  * Revision 1.63  2003/07/12 14:01:00  Daniele Bellucci <bellucda@tiscali.it>
  71  * Minor cleanups in gdth_ioctl.
  72  *
  73  * Revision 1.62  2003/02/27 15:01:59  achim
  74  * Dynamic DMA mapping implemented
  75  * New (character device) IOCTL interface added
  76  * Other controller related changes made
  77  *
  78  * Revision 1.61  2002/11/08 13:09:52  boji
  79  * Added support for XSCALE based RAID Controllers
  80  * Fixed SCREENSERVICE initialization in SMP cases
  81  * Added checks for gdth_polling before GDTH_HA_LOCK
  82  *
  83  * Revision 1.60  2002/02/05 09:35:22  achim
  84  * MODULE_LICENSE only if kernel >= 2.4.11
  85  *
  86  * Revision 1.59  2002/01/30 09:46:33  achim
  87  * Small changes
  88  *
  89  * Revision 1.58  2002/01/29 15:30:02  achim
  90  * Set default value of shared_access to Y
  91  * New status S_CACHE_RESERV for clustering added
  92  *
  93  * Revision 1.57  2001/08/21 11:16:35  achim
  94  * Bugfix free_irq()
  95  *
  96  * Revision 1.56  2001/08/09 11:19:39  achim
  97  * Scsi_Host_Template changes
  98  *
  99  * Revision 1.55  2001/08/09 10:11:28  achim
 100  * Command HOST_UNFREEZE_IO before cache service init.
 101  *
 102  * Revision 1.54  2001/07/20 13:48:12  achim
 103  * Expand: gdth_analyse_hdrive() removed
 104  *
 105  * Revision 1.53  2001/07/17 09:52:49  achim
 106  * Small OEM related change
 107  *
 108  * Revision 1.52  2001/06/19 15:06:20  achim
 109  * New host command GDT_UNFREEZE_IO added
 110  *
 111  * Revision 1.51  2001/05/22 06:42:37  achim
 112  * PCI: Subdevice ID added
 113  *
 114  * Revision 1.50  2001/05/17 13:42:16  achim
 115  * Support for Intel Storage RAID Controllers added
 116  *
 117  * Revision 1.50  2001/05/17 12:12:34  achim
 118  * Support for Intel Storage RAID Controllers added
 119  *
 120  * Revision 1.49  2001/03/15 15:07:17  achim
 121  * New __setup interface for boot command line options added
 122  *
 123  * Revision 1.48  2001/02/06 12:36:28  achim
 124  * Bugfix Cluster protocol
 125  *
 126  * Revision 1.47  2001/01/10 14:42:06  achim
 127  * New switch shared_access added
 128  *
 129  * Revision 1.46  2001/01/09 08:11:35  achim
 130  * gdth_command() removed
 131  * meaning of Scsi_Pointer members changed
 132  *
 133  * Revision 1.45  2000/11/16 12:02:24  achim
 134  * Changes for kernel 2.4
 135  *
 136  * Revision 1.44  2000/10/11 08:44:10  achim
 137  * Clustering changes: New flag media_changed added
 138  *
 139  * Revision 1.43  2000/09/20 12:59:01  achim
 140  * DPMEM remap functions for all PCI controller types implemented
 141  * Small changes for ia64 platform
 142  *
 143  * Revision 1.42  2000/07/20 09:04:50  achim
 144  * Small changes for kernel 2.4
 145  *
 146  * Revision 1.41  2000/07/04 14:11:11  achim
 147  * gdth_analyse_hdrive() added to rescan drives after online expansion
 148  *
 149  * Revision 1.40  2000/06/27 11:24:16  achim
 150  * Changes Clustering, Screenservice
 151  *
 152  * Revision 1.39  2000/06/15 13:09:04  achim
 153  * Changes for gdth_do_cmd()
 154  *
 155  * Revision 1.38  2000/06/15 12:08:43  achim
 156  * Bugfix gdth_sync_event(), service SCREENSERVICE
 157  * Data direction for command 0xc2 changed to DOU
 158  *
 159  * Revision 1.37  2000/05/25 13:50:10  achim
 160  * New driver parameter virt_ctr added
 161  *
 162  * Revision 1.36  2000/05/04 08:50:46  achim
 163  * Event buffer now in gdth_ha_str
 164  *
 165  * Revision 1.35  2000/03/03 10:44:08  achim
 166  * New event_string only valid for the RP controller family
 167  *
 168  * Revision 1.34  2000/03/02 14:55:29  achim
 169  * New mechanism for async. event handling implemented
 170  *
 171  * Revision 1.33  2000/02/21 15:37:37  achim
 172  * Bugfix Alpha platform + DPMEM above 4GB
 173  *
 174  * Revision 1.32  2000/02/14 16:17:37  achim
 175  * Bugfix sense_buffer[] + raw devices
 176  *
 177  * Revision 1.31  2000/02/10 10:29:00  achim
 178  * Delete sense_buffer[0], if command OK
 179  *
 180  * Revision 1.30  1999/11/02 13:42:39  achim
 181  * ARRAY_DRV_LIST2 implemented
 182  * Now 255 log. and 100 host drives supported
 183  *
 184  * Revision 1.29  1999/10/05 13:28:47  achim
 185  * GDT_CLUST_RESET added
 186  *
 187  * Revision 1.28  1999/08/12 13:44:54  achim
 188  * MOUNTALL removed
 189  * Cluster drives -> removeable drives
 190  *
 191  * Revision 1.27  1999/06/22 07:22:38  achim
 192  * Small changes
 193  *
 194  * Revision 1.26  1999/06/10 16:09:12  achim
 195  * Cluster Host Drive support: Bugfixes
 196  *
 197  * Revision 1.25  1999/06/01 16:03:56  achim
 198  * gdth_init_pci(): Manipulate config. space to start RP controller
 199  *
 200  * Revision 1.24  1999/05/26 11:53:06  achim
 201  * Cluster Host Drive support added
 202  *
 203  * Revision 1.23  1999/03/26 09:12:31  achim
 204  * Default value for hdr_channel set to 0
 205  *
 206  * Revision 1.22  1999/03/22 16:27:16  achim
 207  * Bugfix: gdth_store_event() must not be locked with GDTH_LOCK_HA()
 208  *
 209  * Revision 1.21  1999/03/16 13:40:34  achim
 210  * Problems with reserved drives solved
 211  * gdth_eh_bus_reset() implemented
 212  *
 213  * Revision 1.20  1999/03/10 09:08:13  achim
 214  * Bugfix: Corrections in gdth_direction_tab[] made
 215  * Bugfix: Increase command timeout (gdth_update_timeout()) NOT in gdth_putq()
 216  *
 217  * Revision 1.19  1999/03/05 14:38:16  achim
 218  * Bugfix: Heads/Sectors mapping for reserved devices possibly wrong
 219  * -> gdth_eval_mapping() implemented, changes in gdth_bios_param()
 220  * INIT_RETRIES set to 100s to avoid DEINIT-Timeout for controllers
 221  * with BIOS disabled and memory test set to Intensive
 222  * Enhanced /proc support
 223  *
 224  * Revision 1.18  1999/02/24 09:54:33  achim
 225  * Command line parameter hdr_channel implemented
 226  * Bugfix for EISA controllers + Linux 2.2.x
 227  *
 228  * Revision 1.17  1998/12/17 15:58:11  achim
 229  * Command line parameters implemented
 230  * Changes for Alpha platforms
 231  * PCI controller scan changed
 232  * SMP support improved (spin_lock_irqsave(),...)
 233  * New async. events, new scan/reserve commands included
 234  *
 235  * Revision 1.16  1998/09/28 16:08:46  achim
 236  * GDT_PCIMPR: DPMEM remapping, if required
 237  * mdelay() added
 238  *
 239  * Revision 1.15  1998/06/03 14:54:06  achim
 240  * gdth_delay(), gdth_flush() implemented
 241  * Bugfix: gdth_release() changed
 242  *
 243  * Revision 1.14  1998/05/22 10:01:17  achim
 244  * mj: pcibios_strerror() removed
 245  * Improved SMP support (if version >= 2.1.95)
 246  * gdth_halt(): halt_called flag added (if version < 2.1)
 247  *
 248  * Revision 1.13  1998/04/16 09:14:57  achim
 249  * Reserve drives (for raw service) implemented
 250  * New error handling code enabled
 251  * Get controller name from board_info() IOCTL
 252  * Final round of PCI device driver patches by Martin Mares
 253  *
 254  * Revision 1.12  1998/03/03 09:32:37  achim
 255  * Fibre channel controller support added
 256  *
 257  * Revision 1.11  1998/01/27 16:19:14  achim
 258  * SA_SHIRQ added
 259  * add_timer()/del_timer() instead of GDTH_TIMER
 260  * scsi_add_timer()/scsi_del_timer() instead of SCSI_TIMER
 261  * New error handling included
 262  *
 263  * Revision 1.10  1997/10/31 12:29:57  achim
 264  * Read heads/sectors from host drive
 265  *
 266  * Revision 1.9  1997/09/04 10:07:25  achim
 267  * IO-mapping with virt_to_bus(), gdth_readb(), gdth_writeb(), ...
 268  * register_reboot_notifier() to get a notify on shutown used
 269  *
 270  * Revision 1.8  1997/04/02 12:14:30  achim
 271  * Version 1.00 (see gdth.h), tested with kernel 2.0.29
 272  *
 273  * Revision 1.7  1997/03/12 13:33:37  achim
 274  * gdth_reset() changed, new async. events
 275  *
 276  * Revision 1.6  1997/03/04 14:01:11  achim
 277  * Shutdown routine gdth_halt() implemented
 278  *
 279  * Revision 1.5  1997/02/21 09:08:36  achim
 280  * New controller included (RP, RP1, RP2 series)
 281  * IOCTL interface implemented
 282  *
 283  * Revision 1.4  1996/07/05 12:48:55  achim
 284  * Function gdth_bios_param() implemented
 285  * New constant GDTH_MAXC_P_L inserted
 286  * GDT_WRITE_THR, GDT_EXT_INFO implemented
 287  * Function gdth_reset() changed
 288  *
 289  * Revision 1.3  1996/05/10 09:04:41  achim
 290  * Small changes for Linux 1.2.13
 291  *
 292  * Revision 1.2  1996/05/09 12:45:27  achim
 293  * Loadable module support implemented
 294  * /proc support corrections made
 295  *
 296  * Revision 1.1  1996/04/11 07:35:57  achim
 297  * Initial revision
 298  *
 299  ************************************************************************/
 300
 301 /* All GDT Disk Array Controllers are fully supported by this driver.
 302  * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
 303  * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
 304  * list of all controller types.
 305  *
 306  * If you have one or more GDT3000/3020 EISA controllers with
 307  * controller BIOS disabled, you have to set the IRQ values with the
 308  * command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
 309  * the IRQ values for the EISA controllers.
 310  *
 311  * After the optional list of IRQ values, other possible
 312  * command line options are:
 313  * disable:Y                    disable driver
 314  * disable:N                    enable driver
 315  * reserve_mode:0               reserve no drives for the raw service
 316  * reserve_mode:1               reserve all not init., removable drives
 317  * reserve_mode:2               reserve all not init. drives
 318  * reserve_list:h,b,t,l,h,b,t,l,...     reserve particular drive(s) with
 319  *                              h- controller no., b- channel no.,
 320  *                              t- target ID, l- LUN
 321  * reverse_scan:Y               reverse scan order for PCI controllers
 322  * reverse_scan:N               scan PCI controllers like BIOS
 323  * max_ids:x                    x - target ID count per channel (1..MAXID)
 324  * rescan:Y                     rescan all channels/IDs
 325  * rescan:N                     use all devices found until now
 326  * virt_ctr:Y                   map every channel to a virtual controller
 327  * virt_ctr:N                   use multi channel support
 328  * hdr_channel:x                x - number of virtual bus for host drives
 329  * shared_access:Y              disable driver reserve/release protocol to
 330  *                              access a shared resource from several nodes,
 331  *                              appropiate controller firmware required
 332  * shared_access:N              enable driver reserve/release protocol
 333  * probe_eisa_isa:Y             scan for EISA/ISA controllers
 334  * probe_eisa_isa:N             do not scan for EISA/ISA controllers
 335  * force_dma32:Y                use only 32 bit DMA mode
 336  * force_dma32:N                use 64 bit DMA mode, if supported
 337  *
 338  * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
 339  *                          max_ids:127,rescan:N,virt_ctr:N,hdr_channel:0,
 340  *                          shared_access:Y,probe_eisa_isa:N,force_dma32:N".
 341  * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
 342  *
 343  * When loading the gdth driver as a module, the same options are available.
 344  * You can set the IRQs with "IRQ=...". However, the syntax to specify the
 345  * options changes slightly. You must replace all ',' between options
 346  * with ' ' and all ':' with '=' and you must use
 347  * '1' in place of 'Y' and '0' in place of 'N'.
 348  *
 349  * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
 350  *           max_ids=127 rescan=0 virt_ctr=0 hdr_channel=0 shared_access=0
 351  *           probe_eisa_isa=0 force_dma32=0"
 352  * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
 353  */
 354
 355 /* The meaning of the Scsi_Pointer members in this driver is as follows:
 356  * ptr:                     Chaining
 357  * this_residual:           Command priority
 358  * buffer:                  phys. DMA sense buffer
 359  * dma_handle:              phys. DMA buffer (kernel >= 2.4.0)
 360  * buffers_residual:        Timeout value
 361  * Status:                  Command status (gdth_do_cmd()), DMA mem. mappings
 362  * Message:                 Additional info (gdth_do_cmd()), DMA direction
 363  * have_data_in:            Flag for gdth_wait_completion()
 364  * sent_command:            Opcode special command
 365  * phase:                   Service/parameter/return code special command
 366  */
 367
 368
 369 /* interrupt coalescing */
 370 /* #define INT_COAL */
 371
 372 /* statistics */
 373 #define GDTH_STATISTICS
 374
 375 #include <linux/module.h>
 376
 377 #include <linux/version.h>
 378 #include <linux/kernel.h>
 379 #include <linux/types.h>
 380 #include <linux/pci.h>
 381 #include <linux/string.h>
 382 #include <linux/ctype.h>
 383 #include <linux/ioport.h>
 384 #include <linux/delay.h>
 385 #include <linux/sched.h>
 386 #include <linux/interrupt.h>
 387 #include <linux/in.h>
 388 #include <linux/proc_fs.h>
 389 #include <linux/time.h>
 390 #include <linux/timer.h>
 391 #ifdef GDTH_RTC
 392 #include <linux/mc146818rtc.h>
 393 #endif
 394 #include <linux/reboot.h>
 395
 396 #include <asm/dma.h>
 397 #include <asm/system.h>
 398 #include <asm/io.h>
 399 #include <asm/uaccess.h>
 400 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 401 #include <linux/spinlock.h>
 402 #else
 403 #include <asm/spinlock.h>
 404 #endif
 405 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 406 #include <linux/blkdev.h>
 407 #else
 408 #include <linux/blk.h>
 409 #include "sd.h"
 410 #endif
 411
 412 #include "scsi.h"
 413 #include "hosts.h"
 414 #include "gdth.h"
 415
 416 static void gdth_delay(int milliseconds);
 417 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
 418 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 419 static irqreturn_t gdth_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 420 #else
 421 static void gdth_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 422 #endif
 423 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp);
 424 static int gdth_async_event(int hanum);
 425 static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
 426
 427 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority);
 428 static void gdth_next(int hanum);
 429 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b);
 430 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp);
 431 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
 432                                       ushort idx, gdth_evt_data *evt);
 433 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
 434 static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
 435                                gdth_evt_str *estr);
 436 static void gdth_clear_events(void);
 437
 438 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
 439                                     char *buffer,ushort count);
 440 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 441 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
 442
 443 static int gdth_search_eisa(ushort eisa_adr);
 444 static int gdth_search_isa(ulong32 bios_adr);
 445 static int gdth_search_pci(gdth_pci_str *pcistr);
 446 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 447                             ushort vendor, ushort dev);
 448 static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
 449 static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
 450 static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
 451 static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 452
 453 static void gdth_enable_int(int hanum);
 454 static int gdth_get_status(unchar *pIStatus,int irq);
 455 static int gdth_test_busy(int hanum);
 456 static int gdth_get_cmd_index(int hanum);
 457 static void gdth_release_event(int hanum);
 458 static int gdth_wait(int hanum,int index,ulong32 time);
 459 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
 460                              ulong64 p2,ulong64 p3);
 461 static int gdth_search_drives(int hanum);
 462 static int gdth_analyse_hdrive(int hanum, ushort hdrive);
 463
 464 static const char *gdth_ctr_name(int hanum);
 465
 466 static int gdth_open(struct inode *inode, struct file *filep);
 467 static int gdth_close(struct inode *inode, struct file *filep);
 468 static int gdth_ioctl(struct inode *inode, struct file *filep,
 469                       unsigned int cmd, unsigned long arg);
 470
 471 static void gdth_flush(int hanum);
 472 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
 473
 474 #ifdef DEBUG_GDTH
 475 static unchar   DebugState = DEBUG_GDTH;
 476
 477 #ifdef __SERIAL__
 478 #define MAX_SERBUF 160
 479 static void ser_init(void);
 480 static void ser_puts(char *str);
 481 static void ser_putc(char c);
 482 static int  ser_printk(const char *fmt, ...);
 483 static char strbuf[MAX_SERBUF+1];
 484 #ifdef __COM2__
 485 #define COM_BASE 0x2f8
 486 #else
 487 #define COM_BASE 0x3f8
 488 #endif
 489 static void ser_init()
 490 {
 491     unsigned port=COM_BASE;
 492
 493     outb(0x80,port+3);
 494     outb(0,port+1);
 495     /* 19200 Baud, if 9600: outb(12,port) */
 496     outb(6, port);
 497     outb(3,port+3);
 498     outb(0,port+1);
 499     /*
 500     ser_putc('I');
 501     ser_putc(' ');
 502     */
 503 }
 504
 505 static void ser_puts(char *str)
 506 {
 507     char *ptr;
 508
 509     ser_init();
 510     for (ptr=str;*ptr;++ptr)
 511         ser_putc(*ptr);
 512 }
 513
 514 static void ser_putc(char c)
 515 {
 516     unsigned port=COM_BASE;
 517
 518     while ((inb(port+5) & 0x20)==0);
 519     outb(c,port);
 520     if (c==0x0a)
 521     {
 522         while ((inb(port+5) & 0x20)==0);
 523         outb(0x0d,port);
 524     }
 525 }
 526
 527 static int ser_printk(const char *fmt, ...)
 528 {
 529     va_list args;
 530     int i;
 531
 532     va_start(args,fmt);
 533     i = vsprintf(strbuf,fmt,args);
 534     ser_puts(strbuf);
 535     va_end(args);
 536     return i;
 537 }
 538
 539 #define TRACE(a)    {if (DebugState==1) {ser_printk a;}}
 540 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {ser_printk a;}}
 541 #define TRACE3(a)   {if (DebugState!=0) {ser_printk a;}}
 542
 543 #else /* !__SERIAL__ */
 544 #define TRACE(a)    {if (DebugState==1) {printk a;}}
 545 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {printk a;}}
 546 #define TRACE3(a)   {if (DebugState!=0) {printk a;}}
 547 #endif
 548
 549 #else /* !DEBUG */
 550 #define TRACE(a)
 551 #define TRACE2(a)
 552 #define TRACE3(a)
 553 #endif
 554
 555 #ifdef GDTH_STATISTICS
 556 static ulong32 max_rq=0, max_index=0, max_sg=0;
 557 #ifdef INT_COAL
 558 static ulong32 max_int_coal=0;
 559 #endif
 560 static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
 561 static struct timer_list gdth_timer;
 562 #endif
 563
 564 #define PTR2USHORT(a)   (ushort)(ulong)(a)
 565 #define GDTOFFSOF(a,b)  (size_t)&(((a*)0)->b)
 566 #define INDEX_OK(i,t)   ((i)<sizeof(t)/sizeof((t)[0]))
 567
 568 #define NUMDATA(a)      ( (gdth_num_str  *)((a)->hostdata))
 569 #define HADATA(a)       (&((gdth_ext_str *)((a)->hostdata))->haext)
 570 #define CMDDATA(a)      (&((gdth_ext_str *)((a)->hostdata))->cmdext)
 571
 572 #define BUS_L2P(a,b)    ((b)>(a)->virt_bus ? (b-1):(b))
 573
 574 #define gdth_readb(addr)        readb((ulong)(addr))
 575 #define gdth_readw(addr)        readw((ulong)(addr))
 576 #define gdth_readl(addr)        (ulong32)readl((ulong)(addr))
 577 #define gdth_writeb(b,addr)     writeb((b),(ulong)(addr))
 578 #define gdth_writew(b,addr)     writew((b),(ulong)(addr))
 579 #define gdth_writel(b,addr)     writel((ulong32)(b),(ulong)(addr))
 580
 581 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 582 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
 583 static unchar   gdth_polling;                           /* polling if TRUE */
 584 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 585 static int      wait_index,wait_hanum;                  /* gdth_wait() */
 586 static int      gdth_ctr_count  = 0;                    /* controller count */
 587 static int      gdth_ctr_vcount = 0;                    /* virt. ctr. count */
 588 static int      gdth_ctr_released = 0;                  /* gdth_release() */
 589 static struct Scsi_Host *gdth_ctr_tab[MAXHA];           /* controller table */
 590 static struct Scsi_Host *gdth_ctr_vtab[MAXHA*MAXBUS];   /* virt. ctr. table */
 591 static unchar   gdth_write_through = FALSE;             /* write through */
 592 static gdth_evt_str ebuffer[MAX_EVENTS];                /* event buffer */
 593 static int elastidx;
 594 static int eoldidx;
 595 static int major;
 596
 597 #define DIN     1                               /* IN data direction */
 598 #define DOU     2                               /* OUT data direction */
 599 #define DNO     DIN                             /* no data transfer */
 600 #define DUN     DIN                             /* unknown data direction */
 601 static unchar gdth_direction_tab[0x100] = {
 602     DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
 603     DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
 604     DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
 605     DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
 606     DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
 607     DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
 608     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 609     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 610     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 611     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
 612     DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
 613     DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 614     DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 615     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 616     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 617     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
 618 };
 619
 620 /* __initfunc, __initdata macros */
 621 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 622 #define __devinitdata
 623 #endif
 624 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 625 #define GDTH_INITFUNC(type, func)       type __init func
 626 #include <linux/init.h>
 627 #else
 628 #define GDTH_INITFUNC(type, func)       __initfunc(type func)
 629 #include <linux/init.h>
 630 #endif
 631
 632 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 633 #define GDTH_INIT_LOCK_HA(ha)           spin_lock_init(&(ha)->smp_lock)
 634 #define GDTH_LOCK_HA(ha,flags)          spin_lock_irqsave(&(ha)->smp_lock,flags)
 635 #define GDTH_UNLOCK_HA(ha,flags)        spin_unlock_irqrestore(&(ha)->smp_lock,flags)
 636
 637 #define GDTH_LOCK_SCSI_DONE(dev, flags) spin_lock_irqsave(dev->host_lock,flags)
 638 #define GDTH_UNLOCK_SCSI_DONE(dev, flags) spin_unlock_irqrestore(dev->host_lock,flags)
 639
 640 #else
 641 #define GDTH_INIT_LOCK_HA(ha)           spin_lock_init(&(ha)->smp_lock)
 642 #define GDTH_LOCK_HA(ha,flags)          spin_lock_irqsave(&(ha)->smp_lock,flags)
 643 #define GDTH_UNLOCK_HA(ha,flags)        spin_unlock_irqrestore(&(ha)->smp_lock,flags)
 644
 645 #define GDTH_LOCK_SCSI_DONE(flags)      spin_lock_irqsave(&io_request_lock,flags)
 646 #define GDTH_UNLOCK_SCSI_DONE(flags)    spin_unlock_irqrestore(&io_request_lock,flags)
 647 #endif
 648
 649 /* LILO and modprobe/insmod parameters */
 650 /* IRQ list for GDT3000/3020 EISA controllers */
 651 static int irq[MAXHA] __initdata =
 652 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 653  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 654 /* disable driver flag */
 655 static int disable __initdata = 0;
 656 /* reserve flag */
 657 static int reserve_mode = 1;
 658 /* reserve list */
 659 static int reserve_list[MAX_RES_ARGS] =
 660 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 661  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 662  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 663 /* scan order for PCI controllers */
 664 static int reverse_scan = 0;
 665 /* virtual channel for the host drives */
 666 static int hdr_channel = 0;
 667 /* max. IDs per channel */
 668 static int max_ids = MAXID;
 669 /* rescan all IDs */
 670 static int rescan = 0;
 671 /* map channels to virtual controllers */
 672 static int virt_ctr = 0;
 673 /* shared access */
 674 static int shared_access = 1;
 675 /* enable support for EISA and ISA controllers */
 676 static int probe_eisa_isa = 0;
 677 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
 678 static int force_dma32 = 0;
 679
 680 #ifdef MODULE
 681 /* parameters for modprobe/insmod */
 682 MODULE_PARM(irq, "i");
 683 MODULE_PARM(disable, "i");
 684 MODULE_PARM(reserve_mode, "i");
 685 MODULE_PARM(reserve_list, "4-" __MODULE_STRING(MAX_RES_ARGS) "i");
 686 MODULE_PARM(reverse_scan, "i");
 687 MODULE_PARM(hdr_channel, "i");
 688 MODULE_PARM(max_ids, "i");
 689 MODULE_PARM(rescan, "i");
 690 MODULE_PARM(virt_ctr, "i");
 691 MODULE_PARM(shared_access, "i");
 692 MODULE_PARM(probe_eisa_isa, "i");
 693 MODULE_PARM(force_dma32, "i");
 694 MODULE_AUTHOR("Achim Leubner");
 695 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,11)
 696 MODULE_LICENSE("GPL");
 697 #endif
 698 #endif
 699
 700 /* ioctl interface */
 701 static struct file_operations gdth_fops = {
 702 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 703     .ioctl   = gdth_ioctl,
 704     .open    = gdth_open,
 705     .release = gdth_close,
 706 #else
 707     ioctl:gdth_ioctl,
 708     open:gdth_open,
 709     release:gdth_close,
 710 #endif
 711 };
 712
 713 /* /proc support */
 714 #include <linux/stat.h>
 715 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
 716 struct proc_dir_entry proc_scsi_gdth = {
 717     PROC_SCSI_GDTH, 4, "gdth",
 718     S_IFDIR | S_IRUGO | S_IXUGO, 2
 719 };
 720 #endif
 721
 722 #include "gdth_proc.h"
 723 #include "gdth_proc.c"
 724
 725 /* notifier block to get a notify on system shutdown/halt/reboot */
 726 static struct notifier_block gdth_notifier = {
 727     gdth_halt, NULL, 0
 728 };
 729
 730
 731 static void gdth_delay(int milliseconds)
 732 {
 733     if (milliseconds == 0) {
 734         udelay(1);
 735     } else {
 736         mdelay(milliseconds);
 737     }
 738 }
 739
 740 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
 741 {
 742     *cyls = size /HEADS/SECS;
 743     if (*cyls <= MAXCYLS) {
 744         *heads = HEADS;
 745         *secs = SECS;
 746     } else {                                        /* too high for 64*32 */
 747         *cyls = size /MEDHEADS/MEDSECS;
 748         if (*cyls <= MAXCYLS) {
 749             *heads = MEDHEADS;
 750             *secs = MEDSECS;
 751         } else {                                    /* too high for 127*63 */
 752             *cyls = size /BIGHEADS/BIGSECS;
 753             *heads = BIGHEADS;
 754             *secs = BIGSECS;
 755         }
 756     }
 757 }
 758
 759 /* controller search and initialization functions */
 760
 761 GDTH_INITFUNC(static int, gdth_search_eisa(ushort eisa_adr))
 762 {
 763     ulong32 id;
 764
 765     TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
 766     id = inl(eisa_adr+ID0REG);
 767     if (id == GDT3A_ID || id == GDT3B_ID) {     /* GDT3000A or GDT3000B */
 768         if ((inb(eisa_adr+EISAREG) & 8) == 0)
 769             return 0;                           /* not EISA configured */
 770         return 1;
 771     }
 772     if (id == GDT3_ID)                          /* GDT3000 */
 773         return 1;
 774
 775     return 0;
 776 }
 777
 778
 779 GDTH_INITFUNC(static int, gdth_search_isa(ulong32 bios_adr))
 780 {
 781     void *addr;
 782     ulong32 id;
 783
 784     TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
 785     if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
 786         id = gdth_readl(addr);
 787         iounmap(addr);
 788         if (id == GDT2_ID)                          /* GDT2000 */
 789             return 1;
 790     }
 791     return 0;
 792 }
 793
 794
 795 GDTH_INITFUNC(static int, gdth_search_pci(gdth_pci_str *pcistr))
 796 {
 797     ushort device, cnt;
 798
 799     TRACE(("gdth_search_pci()\n"));
 800
 801     cnt = 0;
 802     for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
 803         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 804     for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP;
 805          device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
 806         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 807     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 808                     PCI_DEVICE_ID_VORTEX_GDTNEWRX);
 809     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 810                     PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
 811     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 812                     PCI_DEVICE_ID_INTEL_SRC);
 813     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 814                     PCI_DEVICE_ID_INTEL_SRC_XSCALE);
 815     return cnt;
 816 }
 817
 818 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 819 /* Vortex only makes RAID controllers.
 820  * We do not really want to specify all 550 ids here, so wildcard match.
 821  */
 822 static struct pci_device_id gdthtable[] __devinitdata = {
 823     {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
 824     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID},
 825     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID},
 826     {0}
 827 };
 828 MODULE_DEVICE_TABLE(pci,gdthtable);
 829 #endif
 830
 831 GDTH_INITFUNC(static void, gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 832                                            ushort vendor, ushort device))
 833 {
 834     ulong base0, base1, base2;
 835     struct pci_dev *pdev;
 836
 837     TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
 838           *cnt, vendor, device));
 839
 840 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
 841     pdev = NULL;
 842     while ((pdev = pci_find_device(vendor, device, pdev))
 843            != NULL) {
 844         if (pci_enable_device(pdev))
 845             continue;
 846         if (*cnt >= MAXHA)
 847             return;
 848         /* GDT PCI controller found, resources are already in pdev */
 849         pcistr[*cnt].pdev = pdev;
 850         pcistr[*cnt].vendor_id = vendor;
 851         pcistr[*cnt].device_id = device;
 852         pcistr[*cnt].subdevice_id = pdev->subsystem_device;
 853         pcistr[*cnt].bus = pdev->bus->number;
 854         pcistr[*cnt].device_fn = pdev->devfn;
 855         pcistr[*cnt].irq = pdev->irq;
 856         base0 = pci_resource_flags(pdev, 0);
 857         base1 = pci_resource_flags(pdev, 1);
 858         base2 = pci_resource_flags(pdev, 2);
 859         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 860             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 861             if (!(base0 & IORESOURCE_MEM))
 862                 continue;
 863             pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
 864         } else {                                  /* GDT6110, GDT6120, .. */
 865             if (!(base0 & IORESOURCE_MEM) ||
 866                 !(base2 & IORESOURCE_MEM) ||
 867                 !(base1 & IORESOURCE_IO))
 868                 continue;
 869             pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
 870             pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
 871             pcistr[*cnt].io    = pci_resource_start(pdev, 1);
 872         }
 873         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 874                 pcistr[*cnt].bus, PCI_SLOT(pcistr[*cnt].device_fn),
 875                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 876         (*cnt)++;
 877     }
 878 #else
 879     pdev = NULL;
 880     while ((pdev = pci_find_device(vendor, device, pdev))
 881            != NULL) {
 882         if (*cnt >= MAXHA)
 883             return;
 884         /* GDT PCI controller found, resources are already in pdev */
 885         pcistr[*cnt].pdev = pdev;
 886         pcistr[*cnt].vendor_id = vendor;
 887         pcistr[*cnt].device_id = device;
 888         pcistr[*cnt].bus = pdev->bus->number;
 889         pcistr[*cnt].device_fn = pdev->devfn;
 890         pcibios_read_config_word(pcistr[*cnt].bus, pcistr[*cnt].device_fn,
 891                                  PCI_SUBSYSTEM_ID, &pcistr[*cnt].subdevice_id);
 892         pcistr[*cnt].irq = pdev->irq;
 893         base0 = pdev->base_address[0];
 894         base1 = pdev->base_address[1];
 895         base2 = pdev->base_address[2];
 896         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 897             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 898             if ((base0 & PCI_BASE_ADDRESS_SPACE) !=
 899                 PCI_BASE_ADDRESS_SPACE_MEMORY)
 900                 continue;
 901             pcistr[*cnt].dpmem = base0 & PCI_BASE_ADDRESS_MEM_MASK;
 902         } else {                                  /* GDT6110, GDT6120, .. */
 903             if ((base0 & PCI_BASE_ADDRESS_SPACE) !=
 904                 PCI_BASE_ADDRESS_SPACE_MEMORY ||
 905                 (base2 & PCI_BASE_ADDRESS_SPACE) !=
 906                 PCI_BASE_ADDRESS_SPACE_MEMORY ||
 907                 (base1 & PCI_BASE_ADDRESS_SPACE) !=
 908                 PCI_BASE_ADDRESS_SPACE_IO)
 909                 continue;
 910             pcistr[*cnt].dpmem = base2 & PCI_BASE_ADDRESS_MEM_MASK;
 911             pcistr[*cnt].io_mm = base0 & PCI_BASE_ADDRESS_MEM_MASK;
 912             pcistr[*cnt].io    = base1 & PCI_BASE_ADDRESS_IO_MASK;
 913         }
 914         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 915                 pcistr[*cnt].bus, PCI_SLOT(pcistr[*cnt].device_fn),
 916                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 917         (*cnt)++;
 918     }
 919 #endif
 920 }
 921
 922
 923 GDTH_INITFUNC(static void, gdth_sort_pci(gdth_pci_str *pcistr, int cnt))
 924 {
 925     gdth_pci_str temp;
 926     int i, changed;
 927
 928     TRACE(("gdth_sort_pci() cnt %d\n",cnt));
 929     if (cnt == 0)
 930         return;
 931
 932     do {
 933         changed = FALSE;
 934         for (i = 0; i < cnt-1; ++i) {
 935             if (!reverse_scan) {
 936                 if ((pcistr[i].bus > pcistr[i+1].bus) ||
 937                     (pcistr[i].bus == pcistr[i+1].bus &&
 938                      PCI_SLOT(pcistr[i].device_fn) >
 939                      PCI_SLOT(pcistr[i+1].device_fn))) {
 940                     temp = pcistr[i];
 941                     pcistr[i] = pcistr[i+1];
 942                     pcistr[i+1] = temp;
 943                     changed = TRUE;
 944                 }
 945             } else {
 946                 if ((pcistr[i].bus < pcistr[i+1].bus) ||
 947                     (pcistr[i].bus == pcistr[i+1].bus &&
 948                      PCI_SLOT(pcistr[i].device_fn) <
 949                      PCI_SLOT(pcistr[i+1].device_fn))) {
 950                     temp = pcistr[i];
 951                     pcistr[i] = pcistr[i+1];
 952                     pcistr[i+1] = temp;
 953                     changed = TRUE;
 954                 }
 955             }
 956         }
 957     } while (changed);
 958 }
 959
 960
 961 GDTH_INITFUNC(static int, gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha))
 962 {
 963     ulong32 retries,id;
 964     unchar prot_ver,eisacf,i,irq_found;
 965
 966     TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
 967
 968     /* disable board interrupts, deinitialize services */
 969     outb(0xff,eisa_adr+EDOORREG);
 970     outb(0x00,eisa_adr+EDENABREG);
 971     outb(0x00,eisa_adr+EINTENABREG);
 972
 973     outb(0xff,eisa_adr+LDOORREG);
 974     retries = INIT_RETRIES;
 975     gdth_delay(20);
 976     while (inb(eisa_adr+EDOORREG) != 0xff) {
 977         if (--retries == 0) {
 978             printk("GDT-EISA: Initialization error (DEINIT failed)\n");
 979             return 0;
 980         }
 981         gdth_delay(1);
 982         TRACE2(("wait for DEINIT: retries=%d\n",retries));
 983     }
 984     prot_ver = inb(eisa_adr+MAILBOXREG);
 985     outb(0xff,eisa_adr+EDOORREG);
 986     if (prot_ver != PROTOCOL_VERSION) {
 987         printk("GDT-EISA: Illegal protocol version\n");
 988         return 0;
 989     }
 990     ha->bmic = eisa_adr;
 991     ha->brd_phys = (ulong32)eisa_adr >> 12;
 992
 993     outl(0,eisa_adr+MAILBOXREG);
 994     outl(0,eisa_adr+MAILBOXREG+4);
 995     outl(0,eisa_adr+MAILBOXREG+8);
 996     outl(0,eisa_adr+MAILBOXREG+12);
 997
 998     /* detect IRQ */
 999     if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
1000         ha->oem_id = OEM_ID_ICP;
1001         ha->type = GDT_EISA;
1002         ha->stype = id;
1003         outl(1,eisa_adr+MAILBOXREG+8);
1004         outb(0xfe,eisa_adr+LDOORREG);
1005         retries = INIT_RETRIES;
1006         gdth_delay(20);
1007         while (inb(eisa_adr+EDOORREG) != 0xfe) {
1008             if (--retries == 0) {
1009                 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
1010                 return 0;
1011             }
1012             gdth_delay(1);
1013         }
1014         ha->irq = inb(eisa_adr+MAILBOXREG);
1015         outb(0xff,eisa_adr+EDOORREG);
1016         TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
1017         /* check the result */
1018         if (ha->irq == 0) {
1019                 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
1020                 for (i = 0, irq_found = FALSE;
1021                      i < MAXHA && irq[i] != 0xff; ++i) {
1022                 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
1023                     irq_found = TRUE;
1024                     break;
1025                 }
1026                 }
1027             if (irq_found) {
1028                 ha->irq = irq[i];
1029                 irq[i] = 0;
1030                 printk("GDT-EISA: Can not detect controller IRQ,\n");
1031                 printk("Use IRQ setting from command line (IRQ = %d)\n",
1032                        ha->irq);
1033             } else {
1034                 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
1035                 printk("the controller BIOS or use command line parameters\n");
1036                 return 0;
1037             }
1038         }
1039     } else {
1040         eisacf = inb(eisa_adr+EISAREG) & 7;
1041         if (eisacf > 4)                         /* level triggered */
1042             eisacf -= 4;
1043         ha->irq = gdth_irq_tab[eisacf];
1044         ha->oem_id = OEM_ID_ICP;
1045         ha->type = GDT_EISA;
1046         ha->stype = id;
1047     }
1048
1049     ha->dma64_support = 0;
1050     return 1;
1051 }
1052
1053
1054 GDTH_INITFUNC(static int, gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha))
1055 {
1056     register gdt2_dpram_str *dp2_ptr;
1057     int i;
1058     unchar irq_drq,prot_ver;
1059     ulong32 retries;
1060
1061     TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
1062
1063     ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
1064     if (ha->brd == NULL) {
1065         printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
1066         return 0;
1067     }
1068     dp2_ptr = (gdt2_dpram_str *)ha->brd;
1069     gdth_writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
1070     /* reset interface area */
1071     memset_io((char *)&dp2_ptr->u,0,sizeof(dp2_ptr->u));
1072     if (gdth_readl(&dp2_ptr->u) != 0) {
1073         printk("GDT-ISA: Initialization error (DPMEM write error)\n");
1074         iounmap(ha->brd);
1075         return 0;
1076     }
1077
1078     /* disable board interrupts, read DRQ and IRQ */
1079     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1080     gdth_writeb(0x00, &dp2_ptr->io.irqen);
1081     gdth_writeb(0x00, &dp2_ptr->u.ic.S_Status);
1082     gdth_writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
1083
1084     irq_drq = gdth_readb(&dp2_ptr->io.rq);
1085     for (i=0; i<3; ++i) {
1086         if ((irq_drq & 1)==0)
1087             break;
1088         irq_drq >>= 1;
1089     }
1090     ha->drq = gdth_drq_tab[i];
1091
1092     irq_drq = gdth_readb(&dp2_ptr->io.rq) >> 3;
1093     for (i=1; i<5; ++i) {
1094         if ((irq_drq & 1)==0)
1095             break;
1096         irq_drq >>= 1;
1097     }
1098     ha->irq = gdth_irq_tab[i];
1099
1100     /* deinitialize services */
1101     gdth_writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
1102     gdth_writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
1103     gdth_writeb(0, &dp2_ptr->io.event);
1104     retries = INIT_RETRIES;
1105     gdth_delay(20);
1106     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1107         if (--retries == 0) {
1108             printk("GDT-ISA: Initialization error (DEINIT failed)\n");
1109             iounmap(ha->brd);
1110             return 0;
1111         }
1112         gdth_delay(1);
1113     }
1114     prot_ver = (unchar)gdth_readl(&dp2_ptr->u.ic.S_Info[0]);
1115     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1116     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1117     if (prot_ver != PROTOCOL_VERSION) {
1118         printk("GDT-ISA: Illegal protocol version\n");
1119         iounmap(ha->brd);
1120         return 0;
1121     }
1122
1123     ha->oem_id = OEM_ID_ICP;
1124     ha->type = GDT_ISA;
1125     ha->ic_all_size = sizeof(dp2_ptr->u);
1126     ha->stype= GDT2_ID;
1127     ha->brd_phys = bios_adr >> 4;
1128
1129     /* special request to controller BIOS */
1130     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
1131     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
1132     gdth_writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
1133     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
1134     gdth_writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
1135     gdth_writeb(0, &dp2_ptr->io.event);
1136     retries = INIT_RETRIES;
1137     gdth_delay(20);
1138     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1139         if (--retries == 0) {
1140             printk("GDT-ISA: Initialization error\n");
1141             iounmap(ha->brd);
1142             return 0;
1143         }
1144         gdth_delay(1);
1145     }
1146     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1147     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1148
1149     ha->dma64_support = 0;
1150     return 1;
1151 }
1152
1153
1154 GDTH_INITFUNC(static int, gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha))
1155 {
1156     register gdt6_dpram_str *dp6_ptr;
1157     register gdt6c_dpram_str *dp6c_ptr;
1158     register gdt6m_dpram_str *dp6m_ptr;
1159     ulong32 retries;
1160     unchar prot_ver;
1161     ushort command;
1162     int i, found = FALSE;
1163
1164     TRACE(("gdth_init_pci()\n"));
1165
1166     if (pcistr->vendor_id == PCI_VENDOR_ID_INTEL)
1167         ha->oem_id = OEM_ID_INTEL;
1168     else
1169         ha->oem_id = OEM_ID_ICP;
1170     ha->brd_phys = (pcistr->bus << 8) | (pcistr->device_fn & 0xf8);
1171     ha->stype = (ulong32)pcistr->device_id;
1172     ha->subdevice_id = pcistr->subdevice_id;
1173     ha->irq = pcistr->irq;
1174 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
1175     ha->pdev = pcistr->pdev;
1176 #endif
1177
1178     if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
1179         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1180         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
1181         if (ha->brd == NULL) {
1182             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1183             return 0;
1184         }
1185         /* check and reset interface area */
1186         dp6_ptr = (gdt6_dpram_str *)ha->brd;
1187         gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1188         if (gdth_readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1189             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1190                    pcistr->dpmem);
1191             found = FALSE;
1192             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1193                 iounmap(ha->brd);
1194                 ha->brd = ioremap(i, sizeof(ushort));
1195                 if (ha->brd == NULL) {
1196                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1197                     return 0;
1198                 }
1199                 if (gdth_readw(ha->brd) != 0xffff) {
1200                     TRACE2(("init_pci_old() address 0x%x busy\n", i));
1201                     continue;
1202                 }
1203                 iounmap(ha->brd);
1204                 pci_write_config_dword(pcistr->pdev,
1205                                        PCI_BASE_ADDRESS_0, i);
1206                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
1207                 if (ha->brd == NULL) {
1208                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1209                     return 0;
1210                 }
1211                 dp6_ptr = (gdt6_dpram_str *)ha->brd;
1212                 gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1213                 if (gdth_readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1214                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1215                     found = TRUE;
1216                     break;
1217                 }
1218             }
1219             if (!found) {
1220                 printk("GDT-PCI: No free address found!\n");
1221                 iounmap(ha->brd);
1222                 return 0;
1223             }
1224         }
1225         memset_io((char *)&dp6_ptr->u,0,sizeof(dp6_ptr->u));
1226         if (gdth_readl(&dp6_ptr->u) != 0) {
1227             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1228             iounmap(ha->brd);
1229             return 0;
1230         }
1231
1232         /* disable board interrupts, deinit services */
1233         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1234         gdth_writeb(0x00, &dp6_ptr->io.irqen);
1235         gdth_writeb(0x00, &dp6_ptr->u.ic.S_Status);
1236         gdth_writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
1237
1238         gdth_writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
1239         gdth_writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
1240         gdth_writeb(0, &dp6_ptr->io.event);
1241         retries = INIT_RETRIES;
1242         gdth_delay(20);
1243         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1244             if (--retries == 0) {
1245                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1246                 iounmap(ha->brd);
1247                 return 0;
1248             }
1249             gdth_delay(1);
1250         }
1251         prot_ver = (unchar)gdth_readl(&dp6_ptr->u.ic.S_Info[0]);
1252         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1253         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1254         if (prot_ver != PROTOCOL_VERSION) {
1255             printk("GDT-PCI: Illegal protocol version\n");
1256             iounmap(ha->brd);
1257             return 0;
1258         }
1259
1260         ha->type = GDT_PCI;
1261         ha->ic_all_size = sizeof(dp6_ptr->u);
1262
1263         /* special command to controller BIOS */
1264         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1265         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1266         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1267         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1268         gdth_writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1269         gdth_writeb(0, &dp6_ptr->io.event);
1270         retries = INIT_RETRIES;
1271         gdth_delay(20);
1272         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1273             if (--retries == 0) {
1274                 printk("GDT-PCI: Initialization error\n");
1275                 iounmap(ha->brd);
1276                 return 0;
1277             }
1278             gdth_delay(1);
1279         }
1280         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1281         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1282
1283         ha->dma64_support = 0;
1284
1285     } else if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1286         ha->plx = (gdt6c_plx_regs *)pcistr->io;
1287         TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1288             pcistr->dpmem,ha->irq));
1289         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1290         if (ha->brd == NULL) {
1291             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1292             iounmap(ha->brd);
1293             return 0;
1294         }
1295         /* check and reset interface area */
1296         dp6c_ptr = (gdt6c_dpram_str *)ha->brd;
1297         gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1298         if (gdth_readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1299             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1300                    pcistr->dpmem);
1301             found = FALSE;
1302             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1303                 iounmap(ha->brd);
1304                 ha->brd = ioremap(i, sizeof(ushort));
1305                 if (ha->brd == NULL) {
1306                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1307                     return 0;
1308                 }
1309                 if (gdth_readw(ha->brd) != 0xffff) {
1310                     TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1311                     continue;
1312                 }
1313                 iounmap(ha->brd);
1314                 pci_write_config_dword(pcistr->pdev,
1315                                        PCI_BASE_ADDRESS_2, i);
1316                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1317                 if (ha->brd == NULL) {
1318                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1319                     return 0;
1320                 }
1321                 dp6c_ptr = (gdt6c_dpram_str *)ha->brd;
1322                 gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1323                 if (gdth_readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1324                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1325                     found = TRUE;
1326                     break;
1327                 }
1328             }
1329             if (!found) {
1330                 printk("GDT-PCI: No free address found!\n");
1331                 iounmap(ha->brd);
1332                 return 0;
1333             }
1334         }
1335         memset_io((char *)&dp6c_ptr->u,0,sizeof(dp6c_ptr->u));
1336         if (gdth_readl(&dp6c_ptr->u) != 0) {
1337             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1338             iounmap(ha->brd);
1339             return 0;
1340         }
1341
1342         /* disable board interrupts, deinit services */
1343         outb(0x00,PTR2USHORT(&ha->plx->control1));
1344         outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1345
1346         gdth_writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1347         gdth_writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1348
1349         gdth_writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1350         gdth_writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1351
1352         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1353
1354         retries = INIT_RETRIES;
1355         gdth_delay(20);
1356         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1357             if (--retries == 0) {
1358                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1359                 iounmap(ha->brd);
1360                 return 0;
1361             }
1362             gdth_delay(1);
1363         }
1364         prot_ver = (unchar)gdth_readl(&dp6c_ptr->u.ic.S_Info[0]);
1365         gdth_writeb(0, &dp6c_ptr->u.ic.Status);
1366         if (prot_ver != PROTOCOL_VERSION) {
1367             printk("GDT-PCI: Illegal protocol version\n");
1368             iounmap(ha->brd);
1369             return 0;
1370         }
1371
1372         ha->type = GDT_PCINEW;
1373         ha->ic_all_size = sizeof(dp6c_ptr->u);
1374
1375         /* special command to controller BIOS */
1376         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1377         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1378         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1379         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1380         gdth_writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1381
1382         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1383
1384         retries = INIT_RETRIES;
1385         gdth_delay(20);
1386         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1387             if (--retries == 0) {
1388                 printk("GDT-PCI: Initialization error\n");
1389                 iounmap(ha->brd);
1390                 return 0;
1391             }
1392             gdth_delay(1);
1393         }
1394         gdth_writeb(0, &dp6c_ptr->u.ic.S_Status);
1395
1396         ha->dma64_support = 0;
1397
1398     } else {                                            /* MPR */
1399         TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1400         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1401         if (ha->brd == NULL) {
1402             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1403             return 0;
1404         }
1405
1406         /* manipulate config. space to enable DPMEM, start RP controller */
1407 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
1408         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1409         command |= 6;
1410         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1411         if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1412             pci_resource_start(pcistr->pdev, 8) = 0UL;
1413         i = 0xFEFF0001UL;
1414         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1415         gdth_delay(1);
1416         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1417                                pci_resource_start(pcistr->pdev, 8));
1418 #else
1419         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1420         command |= 6;
1421         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1422         if (pcistr->pdev->rom_address == 1UL)
1423             pcistr->pdev->rom_address = 0UL;
1424         i = 0xFEFF0001UL;
1425         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1426         gdth_delay(1);
1427         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1428                                pcistr->pdev->rom_address);
1429 #endif
1430
1431         /* Ensure that it is safe to access the non HW portions of DPMEM.
1432          * Aditional check needed for Xscale based RAID controllers */
1433         while( ((int)gdth_readb(&((gdt6m_dpram_str *)ha->brd)->i960r.sema0_reg) ) & 3 )
1434             gdth_delay(1);
1435
1436         /* check and reset interface area */
1437         dp6m_ptr = (gdt6m_dpram_str *)ha->brd;
1438         gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1439         if (gdth_readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1440             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1441                    pcistr->dpmem);
1442             found = FALSE;
1443             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1444                 iounmap(ha->brd);
1445                 ha->brd = ioremap(i, sizeof(ushort));
1446                 if (ha->brd == NULL) {
1447                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1448                     return 0;
1449                 }
1450                 if (gdth_readw(ha->brd) != 0xffff) {
1451                     TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1452                     continue;
1453                 }
1454                 iounmap(ha->brd);
1455                 pci_write_config_dword(pcistr->pdev,
1456                                        PCI_BASE_ADDRESS_0, i);
1457                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1458                 if (ha->brd == NULL) {
1459                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1460                     return 0;
1461                 }
1462                 dp6m_ptr = (gdt6m_dpram_str *)ha->brd;
1463                 gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1464                 if (gdth_readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1465                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1466                     found = TRUE;
1467                     break;
1468                 }
1469             }
1470             if (!found) {
1471                 printk("GDT-PCI: No free address found!\n");
1472                 iounmap(ha->brd);
1473                 return 0;
1474             }
1475         }
1476         memset_io((char *)&dp6m_ptr->u,0,sizeof(dp6m_ptr->u));
1477
1478         /* disable board interrupts, deinit services */
1479         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1480                     &dp6m_ptr->i960r.edoor_en_reg);
1481         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1482         gdth_writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1483         gdth_writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1484
1485         gdth_writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1486         gdth_writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1487         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1488         retries = INIT_RETRIES;
1489         gdth_delay(20);
1490         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1491             if (--retries == 0) {
1492                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1493                 iounmap(ha->brd);
1494                 return 0;
1495             }
1496             gdth_delay(1);
1497         }
1498         prot_ver = (unchar)gdth_readl(&dp6m_ptr->u.ic.S_Info[0]);
1499         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1500         if (prot_ver != PROTOCOL_VERSION) {
1501             printk("GDT-PCI: Illegal protocol version\n");
1502             iounmap(ha->brd);
1503             return 0;
1504         }
1505
1506         ha->type = GDT_PCIMPR;
1507         ha->ic_all_size = sizeof(dp6m_ptr->u);
1508
1509         /* special command to controller BIOS */
1510         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1511         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1512         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1513         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1514         gdth_writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1515         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1516         retries = INIT_RETRIES;
1517         gdth_delay(20);
1518         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1519             if (--retries == 0) {
1520                 printk("GDT-PCI: Initialization error\n");
1521                 iounmap(ha->brd);
1522                 return 0;
1523             }
1524             gdth_delay(1);
1525         }
1526         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1527
1528         /* read FW version to detect 64-bit DMA support */
1529         gdth_writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1530         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1531         retries = INIT_RETRIES;
1532         gdth_delay(20);
1533         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1534             if (--retries == 0) {
1535                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1536                 iounmap(ha->brd);
1537                 return 0;
1538             }
1539             gdth_delay(1);
1540         }
1541         prot_ver = (unchar)(gdth_readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1542         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1543         if (prot_ver < 0x2b)      /* FW < x.43: no 64-bit DMA support */
1544             ha->dma64_support = 0;
1545         else
1546             ha->dma64_support = 1;
1547     }
1548
1549     return 1;
1550 }
1551
1552
1553 /* controller protocol functions */
1554
1555 GDTH_INITFUNC(static void, gdth_enable_int(int hanum))
1556 {
1557     gdth_ha_str *ha;
1558     ulong flags;
1559     gdt2_dpram_str *dp2_ptr;
1560     gdt6_dpram_str *dp6_ptr;
1561     gdt6m_dpram_str *dp6m_ptr;
1562
1563     TRACE(("gdth_enable_int() hanum %d\n",hanum));
1564     ha = HADATA(gdth_ctr_tab[hanum]);
1565     GDTH_LOCK_HA(ha, flags);
1566
1567     if (ha->type == GDT_EISA) {
1568         outb(0xff, ha->bmic + EDOORREG);
1569         outb(0xff, ha->bmic + EDENABREG);
1570         outb(0x01, ha->bmic + EINTENABREG);
1571     } else if (ha->type == GDT_ISA) {
1572         dp2_ptr = (gdt2_dpram_str *)ha->brd;
1573         gdth_writeb(1, &dp2_ptr->io.irqdel);
1574         gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1575         gdth_writeb(1, &dp2_ptr->io.irqen);
1576     } else if (ha->type == GDT_PCI) {
1577         dp6_ptr = (gdt6_dpram_str *)ha->brd;
1578         gdth_writeb(1, &dp6_ptr->io.irqdel);
1579         gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1580         gdth_writeb(1, &dp6_ptr->io.irqen);
1581     } else if (ha->type == GDT_PCINEW) {
1582         outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1583         outb(0x03, PTR2USHORT(&ha->plx->control1));
1584     } else if (ha->type == GDT_PCIMPR) {
1585         dp6m_ptr = (gdt6m_dpram_str *)ha->brd;
1586         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1587         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1588                     &dp6m_ptr->i960r.edoor_en_reg);
1589     }
1590     GDTH_UNLOCK_HA(ha, flags);
1591 }
1592
1593
1594 static int gdth_get_status(unchar *pIStatus,int irq)
1595 {
1596     register gdth_ha_str *ha;
1597     int i;
1598
1599     TRACE(("gdth_get_status() irq %d ctr_count %d\n",
1600            irq,gdth_ctr_count));
1601
1602     *pIStatus = 0;
1603     for (i=0; i<gdth_ctr_count; ++i) {
1604         ha = HADATA(gdth_ctr_tab[i]);
1605         if (ha->irq != (unchar)irq)             /* check IRQ */
1606             continue;
1607         if (ha->type == GDT_EISA)
1608             *pIStatus = inb((ushort)ha->bmic + EDOORREG);
1609         else if (ha->type == GDT_ISA)
1610             *pIStatus =
1611                 gdth_readb(&((gdt2_dpram_str *)ha->brd)->u.ic.Cmd_Index);
1612         else if (ha->type == GDT_PCI)
1613             *pIStatus =
1614                 gdth_readb(&((gdt6_dpram_str *)ha->brd)->u.ic.Cmd_Index);
1615         else if (ha->type == GDT_PCINEW)
1616             *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1617         else if (ha->type == GDT_PCIMPR)
1618             *pIStatus =
1619                 gdth_readb(&((gdt6m_dpram_str *)ha->brd)->i960r.edoor_reg);
1620
1621         if (*pIStatus)
1622             return i;                           /* board found */
1623     }
1624     return -1;
1625 }
1626
1627
1628 static int gdth_test_busy(int hanum)
1629 {
1630     register gdth_ha_str *ha;
1631     register int gdtsema0 = 0;
1632
1633     TRACE(("gdth_test_busy() hanum %d\n",hanum));
1634
1635     ha = HADATA(gdth_ctr_tab[hanum]);
1636     if (ha->type == GDT_EISA)
1637         gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1638     else if (ha->type == GDT_ISA)
1639         gdtsema0 = (int)gdth_readb(&((gdt2_dpram_str *)ha->brd)->u.ic.Sema0);
1640     else if (ha->type == GDT_PCI)
1641         gdtsema0 = (int)gdth_readb(&((gdt6_dpram_str *)ha->brd)->u.ic.Sema0);
1642     else if (ha->type == GDT_PCINEW)
1643         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1644     else if (ha->type == GDT_PCIMPR)
1645         gdtsema0 =
1646             (int)gdth_readb(&((gdt6m_dpram_str *)ha->brd)->i960r.sema0_reg);
1647
1648     return (gdtsema0 & 1);
1649 }
1650
1651
1652 static int gdth_get_cmd_index(int hanum)
1653 {
1654     register gdth_ha_str *ha;
1655     int i;
1656
1657     TRACE(("gdth_get_cmd_index() hanum %d\n",hanum));
1658
1659     ha = HADATA(gdth_ctr_tab[hanum]);
1660     for (i=0; i<GDTH_MAXCMDS; ++i) {
1661         if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1662             ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1663             ha->cmd_tab[i].service = ha->pccb->Service;
1664             ha->pccb->CommandIndex = (ulong32)i+2;
1665             return (i+2);
1666         }
1667     }
1668     return 0;
1669 }
1670
1671
1672 static void gdth_set_sema0(int hanum)
1673 {
1674     register gdth_ha_str *ha;
1675
1676     TRACE(("gdth_set_sema0() hanum %d\n",hanum));
1677
1678     ha = HADATA(gdth_ctr_tab[hanum]);
1679     if (ha->type == GDT_EISA) {
1680         outb(1, ha->bmic + SEMA0REG);
1681     } else if (ha->type == GDT_ISA) {
1682         gdth_writeb(1, &((gdt2_dpram_str *)ha->brd)->u.ic.Sema0);
1683     } else if (ha->type == GDT_PCI) {
1684         gdth_writeb(1, &((gdt6_dpram_str *)ha->brd)->u.ic.Sema0);
1685     } else if (ha->type == GDT_PCINEW) {
1686         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1687     } else if (ha->type == GDT_PCIMPR) {
1688         gdth_writeb(1, &((gdt6m_dpram_str *)ha->brd)->i960r.sema0_reg);
1689     }
1690 }
1691
1692
1693 static void gdth_copy_command(int hanum)
1694 {
1695     register gdth_ha_str *ha;
1696     register gdth_cmd_str *cmd_ptr;
1697     register gdt6m_dpram_str *dp6m_ptr;
1698     register gdt6c_dpram_str *dp6c_ptr;
1699     gdt6_dpram_str *dp6_ptr;
1700     gdt2_dpram_str *dp2_ptr;
1701     ushort cp_count,dp_offset,cmd_no;
1702
1703     TRACE(("gdth_copy_command() hanum %d\n",hanum));
1704
1705     ha = HADATA(gdth_ctr_tab[hanum]);
1706     cp_count = ha->cmd_len;
1707     dp_offset= ha->cmd_offs_dpmem;
1708     cmd_no   = ha->cmd_cnt;
1709     cmd_ptr  = ha->pccb;
1710
1711     ++ha->cmd_cnt;
1712     if (ha->type == GDT_EISA)
1713         return;                                 /* no DPMEM, no copy */
1714
1715     /* set cpcount dword aligned */
1716     if (cp_count & 3)
1717         cp_count += (4 - (cp_count & 3));
1718
1719     ha->cmd_offs_dpmem += cp_count;
1720
1721     /* set offset and service, copy command to DPMEM */
1722     if (ha->type == GDT_ISA) {
1723         dp2_ptr = (gdt2_dpram_str *)ha->brd;
1724         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1725                     &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1726         gdth_writew((ushort)cmd_ptr->Service,
1727                     &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1728         memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1729     } else if (ha->type == GDT_PCI) {
1730         dp6_ptr = (gdt6_dpram_str *)ha->brd;
1731         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1732                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1733         gdth_writew((ushort)cmd_ptr->Service,
1734                     &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1735         memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1736     } else if (ha->type == GDT_PCINEW) {
1737         dp6c_ptr = (gdt6c_dpram_str *)ha->brd;
1738         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1739                     &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1740         gdth_writew((ushort)cmd_ptr->Service,
1741                     &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1742         memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1743     } else if (ha->type == GDT_PCIMPR) {
1744         dp6m_ptr = (gdt6m_dpram_str *)ha->brd;
1745         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1746                     &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1747         gdth_writew((ushort)cmd_ptr->Service,
1748                     &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1749         memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1750     }
1751 }
1752
1753
1754 static void gdth_release_event(int hanum)
1755 {
1756     register gdth_ha_str *ha;
1757
1758     TRACE(("gdth_release_event() hanum %d\n",hanum));
1759     ha = HADATA(gdth_ctr_tab[hanum]);
1760
1761 #ifdef GDTH_STATISTICS
1762     {
1763         ulong32 i,j;
1764         for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1765             if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1766                 ++i;
1767         }
1768         if (max_index < i) {
1769             max_index = i;
1770             TRACE3(("GDT: max_index = %d\n",(ushort)i));
1771         }
1772     }
1773 #endif
1774
1775     if (ha->pccb->OpCode == GDT_INIT)
1776         ha->pccb->Service |= 0x80;
1777
1778     if (ha->type == GDT_EISA) {
1779         if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
1780             outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1781         outb(ha->pccb->Service, ha->bmic + LDOORREG);
1782     } else if (ha->type == GDT_ISA) {
1783         gdth_writeb(0, &((gdt2_dpram_str *)ha->brd)->io.event);
1784     } else if (ha->type == GDT_PCI) {
1785         gdth_writeb(0, &((gdt6_dpram_str *)ha->brd)->io.event);
1786     } else if (ha->type == GDT_PCINEW) {
1787         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1788     } else if (ha->type == GDT_PCIMPR) {
1789         gdth_writeb(1, &((gdt6m_dpram_str *)ha->brd)->i960r.ldoor_reg);
1790     }
1791 }
1792
1793
1794 static int gdth_wait(int hanum,int index,ulong32 time)
1795 {
1796     gdth_ha_str *ha;
1797     int answer_found = FALSE;
1798
1799     TRACE(("gdth_wait() hanum %d index %d time %d\n",hanum,index,time));
1800
1801     ha = HADATA(gdth_ctr_tab[hanum]);
1802     if (index == 0)
1803         return 1;                               /* no wait required */
1804
1805     gdth_from_wait = TRUE;
1806     do {
1807         gdth_interrupt((int)ha->irq,ha,NULL);
1808         if (wait_hanum==hanum && wait_index==index) {
1809             answer_found = TRUE;
1810             break;
1811         }
1812         gdth_delay(1);
1813     } while (--time);
1814     gdth_from_wait = FALSE;
1815
1816     while (gdth_test_busy(hanum))
1817         gdth_delay(0);
1818
1819     return (answer_found);
1820 }
1821
1822
1823 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
1824                              ulong64 p2,ulong64 p3)
1825 {
1826     register gdth_ha_str *ha;
1827     register gdth_cmd_str *cmd_ptr;
1828     int retries,index;
1829
1830     TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1831
1832     ha = HADATA(gdth_ctr_tab[hanum]);
1833     cmd_ptr = ha->pccb;
1834     memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1835
1836     /* make command  */
1837     for (retries = INIT_RETRIES;;) {
1838         cmd_ptr->Service          = service;
1839         cmd_ptr->RequestBuffer    = INTERNAL_CMND;
1840         if (!(index=gdth_get_cmd_index(hanum))) {
1841             TRACE(("GDT: No free command index found\n"));
1842             return 0;
1843         }
1844         gdth_set_sema0(hanum);
1845         cmd_ptr->OpCode           = opcode;
1846         cmd_ptr->BoardNode        = LOCALBOARD;
1847         if (service == CACHESERVICE) {
1848             if (opcode == GDT_IOCTL) {
1849                 cmd_ptr->u.ioctl.subfunc = p1;
1850                 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1851                 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1852                 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1853             } else {
1854                 if (ha->cache_feat & GDT_64BIT) {
1855                     cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1856                     cmd_ptr->u.cache64.BlockNo  = p2;
1857                 } else {
1858                     cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1859                     cmd_ptr->u.cache.BlockNo  = (ulong32)p2;
1860                 }
1861             }
1862         } else if (service == SCSIRAWSERVICE) {
1863             if (ha->raw_feat & GDT_64BIT) {
1864                 cmd_ptr->u.raw64.direction  = p1;
1865                 cmd_ptr->u.raw64.bus        = (unchar)p2;
1866                 cmd_ptr->u.raw64.target     = (unchar)p3;
1867                 cmd_ptr->u.raw64.lun        = (unchar)(p3 >> 8);
1868             } else {
1869                 cmd_ptr->u.raw.direction  = p1;
1870                 cmd_ptr->u.raw.bus        = (unchar)p2;
1871                 cmd_ptr->u.raw.target     = (unchar)p3;
1872                 cmd_ptr->u.raw.lun        = (unchar)(p3 >> 8);
1873             }
1874         } else if (service == SCREENSERVICE) {
1875             if (opcode == GDT_REALTIME) {
1876                 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1877                 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1878                 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1879             }
1880         }
1881         ha->cmd_len          = sizeof(gdth_cmd_str);
1882         ha->cmd_offs_dpmem   = 0;
1883         ha->cmd_cnt          = 0;
1884         gdth_copy_command(hanum);
1885         gdth_release_event(hanum);
1886         gdth_delay(20);
1887         if (!gdth_wait(hanum,index,INIT_TIMEOUT)) {
1888             printk("GDT: Initialization error (timeout service %d)\n",service);
1889             return 0;
1890         }
1891         if (ha->status != S_BSY || --retries == 0)
1892             break;
1893         gdth_delay(1);
1894     }
1895
1896     return (ha->status != S_OK ? 0:1);
1897 }
1898
1899
1900 /* search for devices */
1901
1902 GDTH_INITFUNC(static int, gdth_search_drives(int hanum))
1903 {
1904     register gdth_ha_str *ha;
1905     ushort cdev_cnt, i;
1906     int ok;
1907     ulong32 bus_no, drv_cnt, drv_no, j;
1908     gdth_getch_str *chn;
1909     gdth_drlist_str *drl;
1910     gdth_iochan_str *ioc;
1911     gdth_raw_iochan_str *iocr;
1912     gdth_arcdl_str *alst;
1913     gdth_alist_str *alst2;
1914     gdth_oem_str_ioctl *oemstr;
1915 #ifdef INT_COAL
1916     gdth_perf_modes *pmod;
1917 #endif
1918
1919 #ifdef GDTH_RTC
1920     unchar rtc[12];
1921     ulong flags;
1922 #endif
1923
1924     TRACE(("gdth_search_drives() hanum %d\n",hanum));
1925     ha = HADATA(gdth_ctr_tab[hanum]);
1926     ok = 0;
1927
1928     /* initialize controller services, at first: screen service */
1929     ha->screen_feat = 0;
1930     if (!force_dma32) {
1931         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_X_INIT_SCR,0,0,0);
1932         if (ok)
1933             ha->screen_feat = GDT_64BIT;
1934     }
1935     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1936         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_INIT,0,0,0);
1937     if (!ok) {
1938         printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1939                hanum, ha->status);
1940         return 0;
1941     }
1942     TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1943
1944 #ifdef GDTH_RTC
1945     /* read realtime clock info, send to controller */
1946     /* 1. wait for the falling edge of update flag */
1947     spin_lock_irqsave(&rtc_lock, flags);
1948     for (j = 0; j < 1000000; ++j)
1949         if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1950             break;
1951     for (j = 0; j < 1000000; ++j)
1952         if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1953             break;
1954     /* 2. read info */
1955     do {
1956         for (j = 0; j < 12; ++j)
1957             rtc[j] = CMOS_READ(j);
1958     } while (rtc[0] != CMOS_READ(0));
1959     spin_lock_irqrestore(&rtc_lock, flags);
1960     TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1961             *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1962     /* 3. send to controller firmware */
1963     gdth_internal_cmd(hanum,SCREENSERVICE,GDT_REALTIME, *(ulong32 *)&rtc[0],
1964                       *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1965 #endif
1966
1967     /* unfreeze all IOs */
1968     gdth_internal_cmd(hanum,CACHESERVICE,GDT_UNFREEZE_IO,0,0,0);
1969
1970     /* initialize cache service */
1971     ha->cache_feat = 0;
1972     if (!force_dma32) {
1973         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INIT_HOST,LINUX_OS,0,0);
1974         if (ok)
1975             ha->cache_feat = GDT_64BIT;
1976     }
1977     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1978         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_INIT,LINUX_OS,0,0);
1979     if (!ok) {
1980         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1981                hanum, ha->status);
1982         return 0;
1983     }
1984     TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1985     cdev_cnt = (ushort)ha->info;
1986     ha->fw_vers = ha->service;
1987
1988 #ifdef INT_COAL
1989     if (ha->type == GDT_PCIMPR) {
1990         /* set perf. modes */
1991         pmod = (gdth_perf_modes *)ha->pscratch;
1992         pmod->version          = 1;
1993         pmod->st_mode          = 1;    /* enable one status buffer */
1994         *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1995         pmod->st_buff_indx1    = COALINDEX;
1996         pmod->st_buff_addr2    = 0;
1997         pmod->st_buff_u_addr2  = 0;
1998         pmod->st_buff_indx2    = 0;
1999         pmod->st_buff_size     = sizeof(gdth_coal_status) * MAXOFFSETS;
2000         pmod->cmd_mode         = 0;    // disable all cmd buffers
2001         pmod->cmd_buff_addr1   = 0;
2002         pmod->cmd_buff_u_addr1 = 0;
2003         pmod->cmd_buff_indx1   = 0;
2004         pmod->cmd_buff_addr2   = 0;
2005         pmod->cmd_buff_u_addr2 = 0;
2006         pmod->cmd_buff_indx2   = 0;
2007         pmod->cmd_buff_size    = 0;
2008         pmod->reserved1        = 0;
2009         pmod->reserved2        = 0;
2010         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,SET_PERF_MODES,
2011                               INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
2012             printk("GDT-HA %d: Interrupt coalescing activated\n", hanum);
2013         }
2014     }
2015 #endif
2016
2017     /* detect number of buses - try new IOCTL */
2018     iocr = (gdth_raw_iochan_str *)ha->pscratch;
2019     iocr->hdr.version        = 0xffffffff;
2020     iocr->hdr.list_entries   = MAXBUS;
2021     iocr->hdr.first_chan     = 0;
2022     iocr->hdr.last_chan      = MAXBUS-1;
2023     iocr->hdr.list_offset    = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
2024     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_RAW_DESC,
2025                           INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
2026         TRACE2(("IOCHAN_RAW_DESC supported!\n"));
2027         ha->bus_cnt = iocr->hdr.chan_count;
2028         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2029             if (iocr->list[bus_no].proc_id < MAXID)
2030                 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
2031             else
2032                 ha->bus_id[bus_no] = 0xff;
2033         }
2034     } else {
2035         /* old method */
2036         chn = (gdth_getch_str *)ha->pscratch;
2037         for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
2038             chn->channel_no = bus_no;
2039             if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2040                                    SCSI_CHAN_CNT | L_CTRL_PATTERN,
2041                                    IO_CHANNEL | INVALID_CHANNEL,
2042                                    sizeof(gdth_getch_str))) {
2043                 if (bus_no == 0) {
2044                     printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
2045                            hanum, ha->status);
2046                     return 0;
2047                 }
2048                 break;
2049             }
2050             if (chn->siop_id < MAXID)
2051                 ha->bus_id[bus_no] = chn->siop_id;
2052             else
2053                 ha->bus_id[bus_no] = 0xff;
2054         }
2055         ha->bus_cnt = (unchar)bus_no;
2056     }
2057     TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
2058
2059     /* read cache configuration */
2060     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_INFO,
2061                            INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
2062         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
2063                hanum, ha->status);
2064         return 0;
2065     }
2066     ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
2067     TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
2068             ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
2069             ha->cpar.write_back,ha->cpar.block_size));
2070
2071     /* read board info and features */
2072     ha->more_proc = FALSE;
2073     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_INFO,
2074                           INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
2075         memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
2076                sizeof(gdth_binfo_str));
2077         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_FEATURES,
2078                               INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
2079             TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
2080             ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
2081             ha->more_proc = TRUE;
2082         }
2083     } else {
2084         TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
2085         strcpy(ha->binfo.type_string, gdth_ctr_name(hanum));
2086     }
2087     TRACE2(("Controller name: %s\n",ha->binfo.type_string));
2088
2089     /* read more informations */
2090     if (ha->more_proc) {
2091         /* physical drives, channel addresses */
2092         ioc = (gdth_iochan_str *)ha->pscratch;
2093         ioc->hdr.version        = 0xffffffff;
2094         ioc->hdr.list_entries   = MAXBUS;
2095         ioc->hdr.first_chan     = 0;
2096         ioc->hdr.last_chan      = MAXBUS-1;
2097         ioc->hdr.list_offset    = GDTOFFSOF(gdth_iochan_str, list[0]);
2098         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_DESC,
2099                               INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
2100             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2101                 ha->raw[bus_no].address = ioc->list[bus_no].address;
2102                 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
2103             }
2104         } else {
2105             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2106                 ha->raw[bus_no].address = IO_CHANNEL;
2107                 ha->raw[bus_no].local_no = bus_no;
2108             }
2109         }
2110         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2111             chn = (gdth_getch_str *)ha->pscratch;
2112             chn->channel_no = ha->raw[bus_no].local_no;
2113             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2114                                   SCSI_CHAN_CNT | L_CTRL_PATTERN,
2115                                   ha->raw[bus_no].address | INVALID_CHANNEL,
2116                                   sizeof(gdth_getch_str))) {
2117                 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
2118                 TRACE2(("Channel %d: %d phys. drives\n",
2119                         bus_no,chn->drive_cnt));
2120             }
2121             if (ha->raw[bus_no].pdev_cnt > 0) {
2122                 drl = (gdth_drlist_str *)ha->pscratch;
2123                 drl->sc_no = ha->raw[bus_no].local_no;
2124                 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
2125                 if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2126                                       SCSI_DR_LIST | L_CTRL_PATTERN,
2127                                       ha->raw[bus_no].address | INVALID_CHANNEL,
2128                                       sizeof(gdth_drlist_str))) {
2129                     for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
2130                         ha->raw[bus_no].id_list[j] = drl->sc_list[j];
2131                 } else {
2132                     ha->raw[bus_no].pdev_cnt = 0;
2133                 }
2134             }
2135         }
2136
2137         /* logical drives */
2138         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_CNT,
2139                               INVALID_CHANNEL,sizeof(ulong32))) {
2140             drv_cnt = *(ulong32 *)ha->pscratch;
2141             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_LIST,
2142                                   INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
2143                 for (j = 0; j < drv_cnt; ++j) {
2144                     drv_no = ((ulong32 *)ha->pscratch)[j];
2145                     if (drv_no < MAX_LDRIVES) {
2146                         ha->hdr[drv_no].is_logdrv = TRUE;
2147                         TRACE2(("Drive %d is log. drive\n",drv_no));
2148                     }
2149                 }
2150             }
2151             alst = (gdth_arcdl_str *)ha->pscratch;
2152             alst->entries_avail = MAX_LDRIVES;
2153             alst->first_entry = 0;
2154             alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
2155             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2156                                   ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
2157                                   INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
2158                                   (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
2159                 for (j = 0; j < alst->entries_init; ++j) {
2160                     ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
2161                     ha->hdr[j].is_master = alst->list[j].is_master;
2162                     ha->hdr[j].is_parity = alst->list[j].is_parity;
2163                     ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
2164                     ha->hdr[j].master_no = alst->list[j].cd_handle;
2165                 }
2166             } else if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2167                                          ARRAY_DRV_LIST | LA_CTRL_PATTERN,
2168                                          0, 35 * sizeof(gdth_alist_str))) {
2169                 for (j = 0; j < 35; ++j) {
2170                     alst2 = &((gdth_alist_str *)ha->pscratch)[j];
2171                     ha->hdr[j].is_arraydrv = alst2->is_arrayd;
2172                     ha->hdr[j].is_master = alst2->is_master;
2173                     ha->hdr[j].is_parity = alst2->is_parity;
2174                     ha->hdr[j].is_hotfix = alst2->is_hotfix;
2175                     ha->hdr[j].master_no = alst2->cd_handle;
2176                 }
2177             }
2178         }
2179     }
2180
2181     /* initialize raw service */
2182     ha->raw_feat = 0;
2183     if (!force_dma32) {
2184         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_X_INIT_RAW,0,0,0);
2185         if (ok)
2186             ha->raw_feat = GDT_64BIT;
2187     }
2188     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
2189         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_INIT,0,0,0);
2190     if (!ok) {
2191         printk("GDT-HA %d: Initialization error raw service (code %d)\n",
2192                hanum, ha->status);
2193         return 0;
2194     }
2195     TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
2196
2197     /* set/get features raw service (scatter/gather) */
2198     if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_SET_FEAT,SCATTER_GATHER,
2199                           0,0)) {
2200         TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
2201         if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_GET_FEAT,0,0,0)) {
2202             TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
2203                     ha->info));
2204             ha->raw_feat |= (ushort)ha->info;
2205         }
2206     }
2207
2208     /* set/get features cache service (equal to raw service) */
2209     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_SET_FEAT,0,
2210                           SCATTER_GATHER,0)) {
2211         TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
2212         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_GET_FEAT,0,0,0)) {
2213             TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
2214                     ha->info));
2215             ha->cache_feat |= (ushort)ha->info;
2216         }
2217     }
2218
2219     /* reserve drives for raw service */
2220     if (reserve_mode != 0) {
2221         gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE_ALL,
2222                           reserve_mode == 1 ? 1 : 3, 0, 0);
2223         TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
2224                 ha->status));
2225     }
2226     for (i = 0; i < MAX_RES_ARGS; i += 4) {
2227         if (reserve_list[i] == hanum && reserve_list[i+1] < ha->bus_cnt &&
2228             reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
2229             TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
2230                     reserve_list[i], reserve_list[i+1],
2231                     reserve_list[i+2], reserve_list[i+3]));
2232             if (!gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE,0,
2233                                    reserve_list[i+1], reserve_list[i+2] |
2234                                    (reserve_list[i+3] << 8))) {
2235                 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
2236                        hanum, ha->status);
2237              }
2238         }
2239     }
2240
2241     /* Determine OEM string using IOCTL */
2242     oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
2243     oemstr->params.ctl_version = 0x01;
2244     oemstr->params.buffer_size = sizeof(oemstr->text);
2245     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2246                           CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
2247                           sizeof(gdth_oem_str_ioctl))) {
2248         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
2249         printk("GDT-HA %d: Vendor: %s Name: %s\n",
2250                hanum,oemstr->text.oem_company_name,ha->binfo.type_string);
2251         /* Save the Host Drive inquiry data */
2252 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2253         strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
2254                 sizeof(ha->oem_name));
2255 #else
2256         strncpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,7);
2257         ha->oem_name[7] = '\0';
2258 #endif
2259     } else {
2260         /* Old method, based on PCI ID */
2261         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
2262         printk("GDT-HA %d: Name: %s\n",
2263                hanum,ha->binfo.type_string);
2264 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2265         if (ha->oem_id == OEM_ID_INTEL)
2266             strlcpy(ha->oem_name,"Intel  ", sizeof(ha->oem_name));
2267         else
2268             strlcpy(ha->oem_name,"ICP    ", sizeof(ha->oem_name));
2269 #else
2270         if (ha->oem_id == OEM_ID_INTEL)
2271             strcpy(ha->oem_name,"Intel  ");
2272         else
2273             strcpy(ha->oem_name,"ICP    ");
2274 #endif
2275     }
2276
2277     /* scanning for host drives */
2278     for (i = 0; i < cdev_cnt; ++i)
2279         gdth_analyse_hdrive(hanum,i);
2280
2281     TRACE(("gdth_search_drives() OK\n"));
2282     return 1;
2283 }
2284
2285 static int gdth_analyse_hdrive(int hanum,ushort hdrive)
2286 {
2287     register gdth_ha_str *ha;
2288     ulong32 drv_cyls;
2289     int drv_hds, drv_secs;
2290
2291     TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n",hanum,hdrive));
2292     if (hdrive >= MAX_HDRIVES)
2293         return 0;
2294     ha = HADATA(gdth_ctr_tab[hanum]);
2295
2296     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_INFO,hdrive,0,0))
2297         return 0;
2298     ha->hdr[hdrive].present = TRUE;
2299     ha->hdr[hdrive].size = ha->info;
2300
2301     /* evaluate mapping (sectors per head, heads per cylinder) */
2302     ha->hdr[hdrive].size &= ~SECS32;
2303     if (ha->info2 == 0) {
2304         gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2305     } else {
2306         drv_hds = ha->info2 & 0xff;
2307         drv_secs = (ha->info2 >> 8) & 0xff;
2308         drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2309     }
2310     ha->hdr[hdrive].heads = (unchar)drv_hds;
2311     ha->hdr[hdrive].secs  = (unchar)drv_secs;
2312     /* round size */
2313     ha->hdr[hdrive].size  = drv_cyls * drv_hds * drv_secs;
2314
2315     if (ha->cache_feat & GDT_64BIT) {
2316         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INFO,hdrive,0,0)
2317             && ha->info2 != 0) {
2318             ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2319         }
2320     }
2321     TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2322             hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2323
2324     /* get informations about device */
2325     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_DEVTYPE,hdrive,0,0)) {
2326         TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2327                 hdrive,ha->info));
2328         ha->hdr[hdrive].devtype = (ushort)ha->info;
2329     }
2330
2331     /* cluster info */
2332     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_CLUST_INFO,hdrive,0,0)) {
2333         TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2334                 hdrive,ha->info));
2335         if (!shared_access)
2336             ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2337     }
2338
2339     /* R/W attributes */
2340     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_RW_ATTRIBS,hdrive,0,0)) {
2341         TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2342                 hdrive,ha->info));
2343         ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2344     }
2345
2346     return 1;
2347 }
2348
2349
2350 /* command queueing/sending functions */
2351
2352 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority)
2353 {
2354     register gdth_ha_str *ha;
2355     register Scsi_Cmnd *pscp;
2356     register Scsi_Cmnd *nscp;
2357     ulong flags;
2358     unchar b, t;
2359
2360     TRACE(("gdth_putq() priority %d\n",priority));
2361     ha = HADATA(gdth_ctr_tab[hanum]);
2362     GDTH_LOCK_HA(ha, flags);
2363
2364     scp->SCp.this_residual = (int)priority;
2365 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2366     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
2367     t = scp->device->id;
2368 #else
2369     b = virt_ctr ? NUMDATA(scp->host)->busnum : scp->channel;
2370     t = scp->target;
2371 #endif
2372     if (priority >= DEFAULT_PRI) {
2373         if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2374             (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) {
2375             TRACE2(("gdth_putq(): locked IO -> update_timeout()\n"));
2376             scp->SCp.buffers_residual = gdth_update_timeout(hanum, scp, 0);
2377         }
2378     }
2379
2380     if (ha->req_first==NULL) {
2381         ha->req_first = scp;                    /* queue was empty */
2382         scp->SCp.ptr = NULL;
2383     } else {                                    /* queue not empty */
2384         pscp = ha->req_first;
2385         nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2386         /* priority: 0-highest,..,0xff-lowest */
2387         while (nscp && (unchar)nscp->SCp.this_residual <= priority) {
2388             pscp = nscp;
2389             nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2390         }
2391         pscp->SCp.ptr = (char *)scp;
2392         scp->SCp.ptr  = (char *)nscp;
2393     }
2394     GDTH_UNLOCK_HA(ha, flags);
2395
2396 #ifdef GDTH_STATISTICS
2397     flags = 0;
2398     for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2399         ++flags;
2400     if (max_rq < flags) {
2401         max_rq = flags;
2402         TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2403     }
2404 #endif
2405 }
2406
2407 static void gdth_next(int hanum)
2408 {
2409     register gdth_ha_str *ha;
2410     register Scsi_Cmnd *pscp;
2411     register Scsi_Cmnd *nscp;
2412     unchar b, t, l, firsttime;
2413     unchar this_cmd, next_cmd;
2414     ulong flags = 0;
2415     int cmd_index;
2416
2417     TRACE(("gdth_next() hanum %d\n",hanum));
2418     ha = HADATA(gdth_ctr_tab[hanum]);
2419     if (!gdth_polling)
2420         GDTH_LOCK_HA(ha, flags);
2421
2422     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2423     this_cmd = firsttime = TRUE;
2424     next_cmd = gdth_polling ? FALSE:TRUE;
2425     cmd_index = 0;
2426
2427     for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2428         if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2429             pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2430 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2431         b = virt_ctr ? NUMDATA(nscp->device->host)->busnum : nscp->device->channel;
2432         t = nscp->device->id;
2433         l = nscp->device->lun;
2434 #else
2435         b = virt_ctr ? NUMDATA(nscp->host)->busnum : nscp->channel;
2436         t = nscp->target;
2437         l = nscp->lun;
2438 #endif
2439         if (nscp->SCp.this_residual >= DEFAULT_PRI) {
2440             if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2441                 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2442                 continue;
2443         }
2444
2445         if (firsttime) {
2446             if (gdth_test_busy(hanum)) {        /* controller busy ? */
2447                 TRACE(("gdth_next() controller %d busy !\n",hanum));
2448                 if (!gdth_polling) {
2449                     GDTH_UNLOCK_HA(ha, flags);
2450                     return;
2451                 }
2452                 while (gdth_test_busy(hanum))
2453                     gdth_delay(1);
2454             }
2455             firsttime = FALSE;
2456         }
2457
2458         if (nscp->done != gdth_scsi_done || nscp->cmnd[0] != 0xff) {
2459         if (nscp->SCp.phase == -1) {
2460             nscp->SCp.phase = CACHESERVICE;           /* default: cache svc. */
2461             if (nscp->cmnd[0] == TEST_UNIT_READY) {
2462                 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2463                         b, t, l));
2464                 /* TEST_UNIT_READY -> set scan mode */
2465                 if ((ha->scan_mode & 0x0f) == 0) {
2466                     if (b == 0 && t == 0 && l == 0) {
2467                         ha->scan_mode |= 1;
2468                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2469                     }
2470                 } else if ((ha->scan_mode & 0x0f) == 1) {
2471                     if (b == 0 && ((t == 0 && l == 1) ||
2472                          (t == 1 && l == 0))) {
2473                         nscp->SCp.sent_command = GDT_SCAN_START;
2474                         nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2475                             | SCSIRAWSERVICE;
2476                         ha->scan_mode = 0x12;
2477                         TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2478                                 ha->scan_mode));
2479                     } else {
2480                         ha->scan_mode &= 0x10;
2481                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2482                     }
2483                 } else if (ha->scan_mode == 0x12) {
2484                     if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2485                         nscp->SCp.phase = SCSIRAWSERVICE;
2486                         nscp->SCp.sent_command = GDT_SCAN_END;
2487                         ha->scan_mode &= 0x10;
2488                         TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2489                                 ha->scan_mode));
2490                     }
2491                 }
2492             }
2493             if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2494                 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2495                 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2496                 /* always GDT_CLUST_INFO! */
2497                 nscp->SCp.sent_command = GDT_CLUST_INFO;
2498             }
2499         }
2500         }
2501
2502         if (nscp->SCp.sent_command != -1) {
2503             if ((nscp->SCp.phase & 0xff) == CACHESERVICE) {
2504                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2505                     this_cmd = FALSE;
2506                 next_cmd = FALSE;
2507             } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) {
2508                 if (!(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2509                     this_cmd = FALSE;
2510                 next_cmd = FALSE;
2511             } else {
2512                 memset((char*)nscp->sense_buffer,0,16);
2513                 nscp->sense_buffer[0] = 0x70;
2514                 nscp->sense_buffer[2] = NOT_READY;
2515                 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2516                 if (!nscp->SCp.have_data_in)
2517                     nscp->SCp.have_data_in++;
2518                 else {
2519                     if (!gdth_polling)
2520                         GDTH_UNLOCK_HA(ha,flags);
2521                     /* io_request_lock already active ! */
2522                     nscp->scsi_done(nscp);
2523                     if (!gdth_polling)
2524                         GDTH_LOCK_HA(ha,flags);
2525                 }
2526             }
2527         } else if (nscp->done == gdth_scsi_done && nscp->cmnd[0] == 0xff) {
2528             if (!(cmd_index=gdth_special_cmd(hanum,nscp)))
2529                 this_cmd = FALSE;
2530             next_cmd = FALSE;
2531         } else if (b != ha->virt_bus) {
2532             if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2533                 !(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2534                 this_cmd = FALSE;
2535             else
2536                 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2537         } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2538             TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2539                     nscp->cmnd[0], b, t, l));
2540             nscp->result = DID_BAD_TARGET << 16;
2541             if (!nscp->SCp.have_data_in)
2542                 nscp->SCp.have_data_in++;
2543             else {
2544                 if (!gdth_polling)
2545                     GDTH_UNLOCK_HA(ha,flags);
2546                 /* io_request_lock already active ! */
2547                 nscp->scsi_done(nscp);
2548                 if (!gdth_polling)
2549                     GDTH_LOCK_HA(ha,flags);
2550             }
2551         } else {
2552             switch (nscp->cmnd[0]) {
2553               case TEST_UNIT_READY:
2554               case INQUIRY:
2555               case REQUEST_SENSE:
2556               case READ_CAPACITY:
2557               case VERIFY:
2558               case START_STOP:
2559               case MODE_SENSE:
2560 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2561               case SERVICE_ACTION_IN:
2562 #endif
2563                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2564                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2565                        nscp->cmnd[4],nscp->cmnd[5]));
2566                 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2567                     /* return UNIT_ATTENTION */
2568                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2569                              nscp->cmnd[0], t));
2570                     ha->hdr[t].media_changed = FALSE;
2571                     memset((char*)nscp->sense_buffer,0,16);
2572                     nscp->sense_buffer[0] = 0x70;
2573                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2574                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2575                     if (!nscp->SCp.have_data_in)
2576                         nscp->SCp.have_data_in++;
2577                     else {
2578                         if (!gdth_polling)
2579                             GDTH_UNLOCK_HA(ha,flags);
2580                         /* io_request_lock already active ! */
2581                         nscp->scsi_done(nscp);
2582                         if (!gdth_polling)
2583                             GDTH_LOCK_HA(ha,flags);
2584                     }
2585                 } else if (gdth_internal_cache_cmd(hanum,nscp)) {
2586                     if (!gdth_polling)
2587                         GDTH_UNLOCK_HA(ha,flags);
2588                     /* io_request_lock already active ! */
2589                     nscp->scsi_done(nscp);
2590                     if (!gdth_polling)
2591                         GDTH_LOCK_HA(ha,flags);
2592                 }
2593                 break;
2594
2595               case ALLOW_MEDIUM_REMOVAL:
2596                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2597                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2598                        nscp->cmnd[4],nscp->cmnd[5]));
2599                 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2600                     TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2601                     nscp->result = DID_OK << 16;
2602                     nscp->sense_buffer[0] = 0;
2603                     if (!nscp->SCp.have_data_in)
2604                         nscp->SCp.have_data_in++;
2605                     else {
2606                         if (!gdth_polling)
2607                             GDTH_UNLOCK_HA(ha,flags);
2608                         /* io_request_lock already active ! */
2609                         nscp->scsi_done(nscp);
2610                         if (!gdth_polling)
2611                             GDTH_LOCK_HA(ha,flags);
2612                     }
2613                 } else {
2614                     nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2615                     TRACE(("Prevent/allow r. %d rem. drive %d\n",
2616                            nscp->cmnd[4],nscp->cmnd[3]));
2617                     if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2618                         this_cmd = FALSE;
2619                 }
2620                 break;
2621
2622               case RESERVE:
2623               case RELEASE:
2624                 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2625                         "RESERVE" : "RELEASE"));
2626                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2627                     this_cmd = FALSE;
2628                 break;
2629
2630               case READ_6:
2631               case WRITE_6:
2632               case READ_10:
2633               case WRITE_10:
2634 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2635               case READ_16:
2636               case WRITE_16:
2637 #endif
2638                 if (ha->hdr[t].media_changed) {
2639                     /* return UNIT_ATTENTION */
2640                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2641                              nscp->cmnd[0], t));
2642                     ha->hdr[t].media_changed = FALSE;
2643                     memset((char*)nscp->sense_buffer,0,16);
2644                     nscp->sense_buffer[0] = 0x70;
2645                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2646                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2647                     if (!nscp->SCp.have_data_in)
2648                         nscp->SCp.have_data_in++;
2649                     else {
2650                         if (!gdth_polling)
2651                             GDTH_UNLOCK_HA(ha,flags);
2652                         /* io_request_lock already active ! */
2653                         nscp->scsi_done(nscp);
2654                         if (!gdth_polling)
2655                             GDTH_LOCK_HA(ha,flags);
2656                     }
2657                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2658                     this_cmd = FALSE;
2659                 break;
2660
2661               default:
2662                 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2663                         nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2664                         nscp->cmnd[4],nscp->cmnd[5]));
2665                 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2666                        hanum, nscp->cmnd[0]);
2667                 nscp->result = DID_ABORT << 16;
2668                 if (!nscp->SCp.have_data_in)
2669                     nscp->SCp.have_data_in++;
2670                 else {
2671                     if (!gdth_polling)
2672                         GDTH_UNLOCK_HA(ha,flags);
2673                     /* io_request_lock already active ! */
2674                     nscp->scsi_done(nscp);
2675                     if (!gdth_polling)
2676                         GDTH_LOCK_HA(ha,flags);
2677                 }
2678                 break;
2679             }
2680         }
2681
2682         if (!this_cmd)
2683             break;
2684         if (nscp == ha->req_first)
2685             ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2686         else
2687             pscp->SCp.ptr = nscp->SCp.ptr;
2688         if (!next_cmd)
2689             break;
2690     }
2691
2692     if (ha->cmd_cnt > 0) {
2693         gdth_release_event(hanum);
2694     }
2695
2696     if (!gdth_polling)
2697         GDTH_UNLOCK_HA(ha, flags);
2698
2699     if (gdth_polling && ha->cmd_cnt > 0) {
2700         if (!gdth_wait(hanum,cmd_index,POLL_TIMEOUT))
2701             printk("GDT-HA %d: Command %d timed out !\n",
2702                    hanum,cmd_index);
2703     }
2704 }
2705
2706 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
2707                                     char *buffer,ushort count)
2708 {
2709     ushort cpcount,i;
2710     ushort cpsum,cpnow;
2711     struct scatterlist *sl;
2712     gdth_ha_str *ha;
2713     int sgcnt;
2714     char *address;
2715
2716     cpcount = count<=(ushort)scp->bufflen ? count:(ushort)scp->bufflen;
2717     ha = HADATA(gdth_ctr_tab[hanum]);
2718
2719     if (scp->use_sg) {
2720         sl = (struct scatterlist *)scp->request_buffer;
2721 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
2722         sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,PCI_DMA_FROMDEVICE);
2723         for (i=0,cpsum=0; i<sgcnt; ++i,++sl) {
2724             cpnow = (ushort)sg_dma_len(sl);
2725             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2726                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2727             if (cpsum+cpnow > cpcount)
2728                 cpnow = cpcount - cpsum;
2729             cpsum += cpnow;
2730             if (!sl->page) {
2731                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2732                        hanum);
2733                 return;
2734             }
2735             address = (char *)(page_address(sl->page) + sl->offset);
2736             memcpy(address,buffer,cpnow);
2737             if (cpsum == cpcount)
2738                 break;
2739             buffer += cpnow;
2740         }
2741         pci_unmap_sg(ha->pdev,scp->request_buffer,
2742                      scp->use_sg,PCI_DMA_FROMDEVICE);
2743 #else
2744         sgcnt = scp->use_sg;
2745         for (i=0,cpsum=0; i<sgcnt; ++i,++sl) {
2746             cpnow = (ushort)sl->length;
2747             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2748                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2749             if (cpsum+cpnow > cpcount)
2750                cpnow = cpcount - cpsum;
2751             cpsum += cpnow;
2752             address = (char *)sl->address;
2753             memcpy(address,buffer,cpnow);
2754             if (cpsum == cpcount)
2755                 break;
2756             buffer += cpnow;
2757         }
2758 #endif
2759     } else {
2760         TRACE(("copy_internal() count %d\n",cpcount));
2761         memcpy((char*)scp->request_buffer,buffer,cpcount);
2762     }
2763 }
2764
2765 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp)
2766 {
2767     register gdth_ha_str *ha;
2768     unchar t;
2769     gdth_inq_data inq;
2770     gdth_rdcap_data rdc;
2771     gdth_sense_data sd;
2772     gdth_modep_data mpd;
2773
2774     ha = HADATA(gdth_ctr_tab[hanum]);
2775 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2776     t  = scp->device->id;
2777 #else
2778     t  = scp->target;
2779 #endif
2780     TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2781            scp->cmnd[0],t));
2782
2783     scp->result = DID_OK << 16;
2784     scp->sense_buffer[0] = 0;
2785
2786     switch (scp->cmnd[0]) {
2787       case TEST_UNIT_READY:
2788       case VERIFY:
2789       case START_STOP:
2790         TRACE2(("Test/Verify/Start hdrive %d\n",t));
2791         break;
2792
2793       case INQUIRY:
2794         TRACE2(("Inquiry hdrive %d devtype %d\n",
2795                 t,ha->hdr[t].devtype));
2796         inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2797         /* you can here set all disks to removable, if you want to do
2798            a flush using the ALLOW_MEDIUM_REMOVAL command */
2799         inq.modif_rmb = 0x00;
2800         if ((ha->hdr[t].devtype & 1) ||
2801             (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2802             inq.modif_rmb = 0x80;
2803         inq.version   = 2;
2804         inq.resp_aenc = 2;
2805         inq.add_length= 32;
2806         strcpy(inq.vendor,ha->oem_name);
2807         sprintf(inq.product,"Host Drive  #%02d",t);
2808         strcpy(inq.revision,"   ");
2809         gdth_copy_internal_data(hanum,scp,(char*)&inq,sizeof(gdth_inq_data));
2810         break;
2811
2812       case REQUEST_SENSE:
2813         TRACE2(("Request sense hdrive %d\n",t));
2814         sd.errorcode = 0x70;
2815         sd.segno     = 0x00;
2816         sd.key       = NO_SENSE;
2817         sd.info      = 0;
2818         sd.add_length= 0;
2819         gdth_copy_internal_data(hanum,scp,(char*)&sd,sizeof(gdth_sense_data));
2820         break;
2821
2822       case MODE_SENSE:
2823         TRACE2(("Mode sense hdrive %d\n",t));
2824         memset((char*)&mpd,0,sizeof(gdth_modep_data));
2825         mpd.hd.data_length = sizeof(gdth_modep_data);
2826         mpd.hd.dev_par     = (ha->hdr[t].devtype&2) ? 0x80:0;
2827         mpd.hd.bd_length   = sizeof(mpd.bd);
2828         mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2829         mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2830         mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2831         gdth_copy_internal_data(hanum,scp,(char*)&mpd,sizeof(gdth_modep_data));
2832         break;
2833
2834       case READ_CAPACITY:
2835         TRACE2(("Read capacity hdrive %d\n",t));
2836         if (ha->hdr[t].size > (ulong64)0xffffffff)
2837             rdc.last_block_no = 0xffffffff;
2838         else
2839             rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2840         rdc.block_length  = cpu_to_be32(SECTOR_SIZE);
2841         gdth_copy_internal_data(hanum,scp,(char*)&rdc,sizeof(gdth_rdcap_data));
2842         break;
2843
2844 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2845       case SERVICE_ACTION_IN:
2846         if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2847             (ha->cache_feat & GDT_64BIT)) {
2848             gdth_rdcap16_data rdc16;
2849
2850             TRACE2(("Read capacity (16) hdrive %d\n",t));
2851             rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2852             rdc16.block_length  = cpu_to_be32(SECTOR_SIZE);
2853             gdth_copy_internal_data(hanum,scp,(char*)&rdc16,sizeof(gdth_rdcap16_data));
2854         } else {
2855             scp->result = DID_ABORT << 16;
2856         }
2857         break;
2858 #endif
2859
2860       default:
2861         TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2862         break;
2863     }
2864
2865     if (!scp->SCp.have_data_in)
2866         scp->SCp.have_data_in++;
2867     else
2868         return 1;
2869
2870     return 0;
2871 }
2872
2873 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
2874 {
2875     register gdth_ha_str *ha;
2876     register gdth_cmd_str *cmdp;
2877     struct scatterlist *sl;
2878     ulong32 cnt, blockcnt;
2879     ulong64 no, blockno;
2880     dma_addr_t phys_addr;
2881     int i, cmd_index, read_write, sgcnt, mode64;
2882 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
2883     struct page *page;
2884     ulong offset;
2885 #endif
2886
2887     ha = HADATA(gdth_ctr_tab[hanum]);
2888     cmdp = ha->pccb;
2889     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2890                  scp->cmnd[0],scp->cmd_len,hdrive));
2891
2892     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2893         return 0;
2894
2895     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2896     /* test for READ_16, WRITE_16 if !mode64 ? ---
2897        not required, should not occur due to error return on
2898        READ_CAPACITY_16 */
2899
2900     cmdp->Service = CACHESERVICE;
2901     cmdp->RequestBuffer = scp;
2902     /* search free command index */
2903     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2904         TRACE(("GDT: No free command index found\n"));
2905         return 0;
2906     }
2907     /* if it's the first command, set command semaphore */
2908     if (ha->cmd_cnt == 0)
2909         gdth_set_sema0(hanum);
2910
2911     /* fill command */
2912     read_write = 0;
2913     if (scp->SCp.sent_command != -1)
2914         cmdp->OpCode = scp->SCp.sent_command;   /* special cache cmd. */
2915     else if (scp->cmnd[0] == RESERVE)
2916         cmdp->OpCode = GDT_RESERVE_DRV;
2917     else if (scp->cmnd[0] == RELEASE)
2918         cmdp->OpCode = GDT_RELEASE_DRV;
2919     else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2920         if (scp->cmnd[4] & 1)                   /* prevent ? */
2921             cmdp->OpCode = GDT_MOUNT;
2922         else if (scp->cmnd[3] & 1)              /* removable drive ? */
2923             cmdp->OpCode = GDT_UNMOUNT;
2924         else
2925             cmdp->OpCode = GDT_FLUSH;
2926     } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2927                scp->cmnd[0] == WRITE_12
2928 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2929                || scp->cmnd[0] == WRITE_16
2930 #endif
2931     ) {
2932         read_write = 1;
2933         if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2934                                    (ha->cache_feat & GDT_WR_THROUGH)))
2935             cmdp->OpCode = GDT_WRITE_THR;
2936         else
2937             cmdp->OpCode = GDT_WRITE;
2938     } else {
2939         read_write = 2;
2940         cmdp->OpCode = GDT_READ;
2941     }
2942
2943     cmdp->BoardNode = LOCALBOARD;
2944     if (mode64) {
2945         cmdp->u.cache64.DeviceNo = hdrive;
2946         cmdp->u.cache64.BlockNo  = 1;
2947         cmdp->u.cache64.sg_canz  = 0;
2948     } else {
2949         cmdp->u.cache.DeviceNo = hdrive;
2950         cmdp->u.cache.BlockNo  = 1;
2951         cmdp->u.cache.sg_canz  = 0;
2952     }
2953
2954     if (read_write) {
2955         if (scp->cmd_len == 16) {
2956             memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2957             blockno = be64_to_cpu(no);
2958             memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2959             blockcnt = be32_to_cpu(cnt);
2960         } else if (scp->cmd_len == 10) {
2961             memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2962             blockno = be32_to_cpu(no);
2963             memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2964             blockcnt = be16_to_cpu(cnt);
2965         } else {
2966             memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2967             blockno = be32_to_cpu(no) & 0x001fffffUL;
2968             blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2969         }
2970         if (mode64) {
2971             cmdp->u.cache64.BlockNo = blockno;
2972             cmdp->u.cache64.BlockCnt = blockcnt;
2973         } else {
2974             cmdp->u.cache.BlockNo = (ulong32)blockno;
2975             cmdp->u.cache.BlockCnt = blockcnt;
2976         }
2977
2978         if (scp->use_sg) {
2979             sl = (struct scatterlist *)scp->request_buffer;
2980             sgcnt = scp->use_sg;
2981 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
2982             scp->SCp.Status = GDTH_MAP_SG;
2983             scp->SCp.Message = (read_write == 1 ?
2984                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2985             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2986             if (mode64) {
2987                 cmdp->u.cache64.DestAddr= (ulong64)-1;
2988                 cmdp->u.cache64.sg_canz = sgcnt;
2989                 for (i=0; i<sgcnt; ++i,++sl) {
2990                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2991 #ifdef GDTH_DMA_STATISTICS
2992                     if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2993                         ha->dma64_cnt++;
2994                     else
2995                         ha->dma32_cnt++;
2996 #endif
2997                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2998                 }
2999             } else {
3000                 cmdp->u.cache.DestAddr= 0xffffffff;
3001                 cmdp->u.cache.sg_canz = sgcnt;
3002                 for (i=0; i<sgcnt; ++i,++sl) {
3003                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
3004 #ifdef GDTH_DMA_STATISTICS
3005                     ha->dma32_cnt++;
3006 #endif
3007                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
3008                 }
3009             }
3010 #else
3011             if (mode64) {
3012                 cmdp->u.cache64.DestAddr= (ulong64)-1;
3013                 cmdp->u.cache64.sg_canz = sgcnt;
3014                 for (i=0; i<sgcnt; ++i,++sl) {
3015                     cmdp->u.cache64.sg_lst[i].sg_ptr = virt_to_bus(sl->address);
3016                     cmdp->u.cache64.sg_lst[i].sg_len = (ulong32)sl->length;
3017                 }
3018             } else {
3019                 cmdp->u.cache.DestAddr= 0xffffffff;
3020                 cmdp->u.cache.sg_canz = sgcnt;
3021                 for (i=0; i<sgcnt; ++i,++sl) {
3022                     cmdp->u.cache.sg_lst[i].sg_ptr = virt_to_bus(sl->address);
3023                     cmdp->u.cache.sg_lst[i].sg_len = (ulong32)sl->length;
3024                 }
3025             }
3026 #endif
3027
3028 #ifdef GDTH_STATISTICS
3029             if (max_sg < (ulong32)sgcnt) {
3030                 max_sg = (ulong32)sgcnt;
3031                 TRACE3(("GDT: max_sg = %d\n",max_sg));
3032             }
3033 #endif
3034
3035         } else {
3036 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3037             scp->SCp.Status = GDTH_MAP_SINGLE;
3038             scp->SCp.Message = (read_write == 1 ?
3039                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
3040             page = virt_to_page(scp->request_buffer);
3041             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3042             phys_addr = pci_map_page(ha->pdev,page,offset,
3043                                      scp->request_bufflen,scp->SCp.Message);
3044             scp->SCp.dma_handle = phys_addr;
3045 #else
3046             phys_addr = virt_to_bus(scp->request_buffer);
3047 #endif
3048             if (mode64) {
3049                 if (ha->cache_feat & SCATTER_GATHER) {
3050                     cmdp->u.cache64.DestAddr = (ulong64)-1;
3051                     cmdp->u.cache64.sg_canz = 1;
3052                     cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr;
3053                     cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen;
3054                     cmdp->u.cache64.sg_lst[1].sg_len = 0;
3055                 } else {
3056                     cmdp->u.cache64.DestAddr  = phys_addr;
3057                     cmdp->u.cache64.sg_canz= 0;
3058                 }
3059             } else {
3060                 if (ha->cache_feat & SCATTER_GATHER) {
3061                     cmdp->u.cache.DestAddr = 0xffffffff;
3062                     cmdp->u.cache.sg_canz = 1;
3063                     cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr;
3064                     cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen;
3065                     cmdp->u.cache.sg_lst[1].sg_len = 0;
3066                 } else {
3067                     cmdp->u.cache.DestAddr  = phys_addr;
3068                     cmdp->u.cache.sg_canz= 0;
3069                 }
3070             }
3071         }
3072     }
3073     /* evaluate command size, check space */
3074     if (mode64) {
3075         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3076                cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
3077                cmdp->u.cache64.sg_lst[0].sg_ptr,
3078                cmdp->u.cache64.sg_lst[0].sg_len));
3079         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
3080                cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
3081         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
3082             (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
3083     } else {
3084         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3085                cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
3086                cmdp->u.cache.sg_lst[0].sg_ptr,
3087                cmdp->u.cache.sg_lst[0].sg_len));
3088         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
3089                cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
3090         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
3091             (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
3092     }
3093     if (ha->cmd_len & 3)
3094         ha->cmd_len += (4 - (ha->cmd_len & 3));
3095
3096     if (ha->cmd_cnt > 0) {
3097         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3098             ha->ic_all_size) {
3099             TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
3100             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3101             return 0;
3102         }
3103     }
3104
3105     /* copy command */
3106     gdth_copy_command(hanum);
3107     return cmd_index;
3108 }
3109
3110 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b)
3111 {
3112     register gdth_ha_str *ha;
3113     register gdth_cmd_str *cmdp;
3114     struct scatterlist *sl;
3115     ushort i;
3116     dma_addr_t phys_addr, sense_paddr;
3117     int cmd_index, sgcnt, mode64;
3118     unchar t,l;
3119 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3120     struct page *page;
3121     ulong offset;
3122 #endif
3123
3124     ha = HADATA(gdth_ctr_tab[hanum]);
3125 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3126     t = scp->device->id;
3127     l = scp->device->lun;
3128 #else
3129     t = scp->target;
3130     l = scp->lun;
3131 #endif
3132     cmdp = ha->pccb;
3133     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
3134            scp->cmnd[0],b,t,l));
3135
3136     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3137         return 0;
3138
3139     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
3140
3141     cmdp->Service = SCSIRAWSERVICE;
3142     cmdp->RequestBuffer = scp;
3143     /* search free command index */
3144     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3145         TRACE(("GDT: No free command index found\n"));
3146         return 0;
3147     }
3148     /* if it's the first command, set command semaphore */
3149     if (ha->cmd_cnt == 0)
3150         gdth_set_sema0(hanum);
3151
3152     /* fill command */
3153     if (scp->SCp.sent_command != -1) {
3154         cmdp->OpCode           = scp->SCp.sent_command; /* special raw cmd. */
3155         cmdp->BoardNode        = LOCALBOARD;
3156         if (mode64) {
3157             cmdp->u.raw64.direction = (scp->SCp.phase >> 8);
3158             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3159                     cmdp->OpCode, cmdp->u.raw64.direction));
3160             /* evaluate command size */
3161             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
3162         } else {
3163             cmdp->u.raw.direction  = (scp->SCp.phase >> 8);
3164             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3165                     cmdp->OpCode, cmdp->u.raw.direction));
3166             /* evaluate command size */
3167             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
3168         }
3169
3170     } else {
3171 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3172         page = virt_to_page(scp->sense_buffer);
3173         offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
3174         sense_paddr = pci_map_page(ha->pdev,page,offset,
3175                                    16,PCI_DMA_FROMDEVICE);
3176         scp->SCp.buffer = (struct scatterlist *)((ulong32)sense_paddr);
3177         /* high part, if 64bit */
3178         scp->host_scribble = (char *)(ulong32)((ulong64)sense_paddr >> 32);
3179 #else
3180         sense_paddr = virt_to_bus(scp->sense_buffer);
3181 #endif
3182         cmdp->OpCode           = GDT_WRITE;             /* always */
3183         cmdp->BoardNode        = LOCALBOARD;
3184         if (mode64) {
3185             cmdp->u.raw64.reserved   = 0;
3186             cmdp->u.raw64.mdisc_time = 0;
3187             cmdp->u.raw64.mcon_time  = 0;
3188             cmdp->u.raw64.clen       = scp->cmd_len;
3189             cmdp->u.raw64.target     = t;
3190             cmdp->u.raw64.lun        = l;
3191             cmdp->u.raw64.bus        = b;
3192             cmdp->u.raw64.priority   = 0;
3193             cmdp->u.raw64.sdlen      = scp->request_bufflen;
3194             cmdp->u.raw64.sense_len  = 16;
3195             cmdp->u.raw64.sense_data = sense_paddr;
3196             cmdp->u.raw64.direction  =
3197                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3198             memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
3199         } else {
3200             cmdp->u.raw.reserved   = 0;
3201             cmdp->u.raw.mdisc_time = 0;
3202             cmdp->u.raw.mcon_time  = 0;
3203             cmdp->u.raw.clen       = scp->cmd_len;
3204             cmdp->u.raw.target     = t;
3205             cmdp->u.raw.lun        = l;
3206             cmdp->u.raw.bus        = b;
3207             cmdp->u.raw.priority   = 0;
3208             cmdp->u.raw.link_p     = 0;
3209             cmdp->u.raw.sdlen      = scp->request_bufflen;
3210             cmdp->u.raw.sense_len  = 16;
3211             cmdp->u.raw.sense_data = sense_paddr;
3212             cmdp->u.raw.direction  =
3213                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3214             memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
3215         }
3216
3217         if (scp->use_sg) {
3218             sl = (struct scatterlist *)scp->request_buffer;
3219             sgcnt = scp->use_sg;
3220 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3221             scp->SCp.Status = GDTH_MAP_SG;
3222             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3223             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
3224             if (mode64) {
3225                 cmdp->u.raw64.sdata = (ulong64)-1;
3226                 cmdp->u.raw64.sg_ranz = sgcnt;
3227                 for (i=0; i<sgcnt; ++i,++sl) {
3228                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
3229 #ifdef GDTH_DMA_STATISTICS
3230                     if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
3231                         ha->dma64_cnt++;
3232                     else
3233                         ha->dma32_cnt++;
3234 #endif
3235                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
3236                 }
3237             } else {
3238                 cmdp->u.raw.sdata = 0xffffffff;
3239                 cmdp->u.raw.sg_ranz = sgcnt;
3240                 for (i=0; i<sgcnt; ++i,++sl) {
3241                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
3242 #ifdef GDTH_DMA_STATISTICS
3243                     ha->dma32_cnt++;
3244 #endif
3245                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
3246                 }
3247             }
3248 #else
3249             if (mode64) {
3250                 cmdp->u.raw64.sdata = (ulong64)-1;
3251                 cmdp->u.raw64.sg_ranz = sgcnt;
3252                 for (i=0; i<sgcnt; ++i,++sl) {
3253                     cmdp->u.raw64.sg_lst[i].sg_ptr = virt_to_bus(sl->address);
3254                     cmdp->u.raw64.sg_lst[i].sg_len = (ulong32)sl->length;
3255                 }
3256             } else {
3257                 cmdp->u.raw.sdata = 0xffffffff;
3258                 cmdp->u.raw.sg_ranz = sgcnt;
3259                 for (i=0; i<sgcnt; ++i,++sl) {
3260                     cmdp->u.raw.sg_lst[i].sg_ptr = virt_to_bus(sl->address);
3261                     cmdp->u.raw.sg_lst[i].sg_len = (ulong32)sl->length;
3262                 }
3263             }
3264 #endif
3265
3266 #ifdef GDTH_STATISTICS
3267             if (max_sg < sgcnt) {
3268                 max_sg = sgcnt;
3269                 TRACE3(("GDT: max_sg = %d\n",sgcnt));
3270             }
3271 #endif
3272
3273         } else {
3274 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3275             scp->SCp.Status = GDTH_MAP_SINGLE;
3276             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3277             page = virt_to_page(scp->request_buffer);
3278             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3279             phys_addr = pci_map_page(ha->pdev,page,offset,
3280                                      scp->request_bufflen,scp->SCp.Message);
3281             scp->SCp.dma_handle = phys_addr;
3282 #else
3283             phys_addr = virt_to_bus(scp->request_buffer);
3284 #endif
3285             if (mode64) {
3286                 if (ha->raw_feat & SCATTER_GATHER) {
3287                     cmdp->u.raw64.sdata  = (ulong64)-1;
3288                     cmdp->u.raw64.sg_ranz= 1;
3289                     cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr;
3290                     cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen;
3291                     cmdp->u.raw64.sg_lst[1].sg_len = 0;
3292                 } else {
3293                     cmdp->u.raw64.sdata  = phys_addr;
3294                     cmdp->u.raw64.sg_ranz= 0;
3295                 }
3296             } else {
3297                 if (ha->raw_feat & SCATTER_GATHER) {
3298                     cmdp->u.raw.sdata  = 0xffffffff;
3299                     cmdp->u.raw.sg_ranz= 1;
3300                     cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr;
3301                     cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen;
3302                     cmdp->u.raw.sg_lst[1].sg_len = 0;
3303                 } else {
3304                     cmdp->u.raw.sdata  = phys_addr;
3305                     cmdp->u.raw.sg_ranz= 0;
3306                 }
3307             }
3308         }
3309         if (mode64) {
3310             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3311                    cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
3312                    cmdp->u.raw64.sg_lst[0].sg_ptr,
3313                    cmdp->u.raw64.sg_lst[0].sg_len));
3314             /* evaluate command size */
3315             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
3316                 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
3317         } else {
3318             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3319                    cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
3320                    cmdp->u.raw.sg_lst[0].sg_ptr,
3321                    cmdp->u.raw.sg_lst[0].sg_len));
3322             /* evaluate command size */
3323             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
3324                 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
3325         }
3326     }
3327     /* check space */
3328     if (ha->cmd_len & 3)
3329         ha->cmd_len += (4 - (ha->cmd_len & 3));
3330
3331     if (ha->cmd_cnt > 0) {
3332         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3333             ha->ic_all_size) {
3334             TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
3335             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3336             return 0;
3337         }
3338     }
3339
3340     /* copy command */
3341     gdth_copy_command(hanum);
3342     return cmd_index;
3343 }
3344
3345 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp)
3346 {
3347     register gdth_ha_str *ha;
3348     register gdth_cmd_str *cmdp;
3349     int cmd_index;
3350
3351     ha  = HADATA(gdth_ctr_tab[hanum]);
3352     cmdp= ha->pccb;
3353     TRACE2(("gdth_special_cmd(): "));
3354
3355     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3356         return 0;
3357
3358     memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str));
3359     cmdp->RequestBuffer = scp;
3360
3361     /* search free command index */
3362     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3363         TRACE(("GDT: No free command index found\n"));
3364         return 0;
3365     }
3366
3367     /* if it's the first command, set command semaphore */
3368     if (ha->cmd_cnt == 0)
3369        gdth_set_sema0(hanum);
3370
3371     /* evaluate command size, check space */
3372     if (cmdp->OpCode == GDT_IOCTL) {
3373         TRACE2(("IOCTL\n"));
3374         ha->cmd_len =
3375             GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
3376     } else if (cmdp->Service == CACHESERVICE) {
3377         TRACE2(("cache command %d\n",cmdp->OpCode));
3378         if (ha->cache_feat & GDT_64BIT)
3379             ha->cmd_len =
3380                 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
3381         else
3382             ha->cmd_len =
3383                 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
3384     } else if (cmdp->Service == SCSIRAWSERVICE) {
3385         TRACE2(("raw command %d\n",cmdp->OpCode));
3386         if (ha->raw_feat & GDT_64BIT)
3387             ha->cmd_len =
3388                 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
3389         else
3390             ha->cmd_len =
3391                 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
3392     }
3393
3394     if (ha->cmd_len & 3)
3395         ha->cmd_len += (4 - (ha->cmd_len & 3));
3396
3397     if (ha->cmd_cnt > 0) {
3398         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3399             ha->ic_all_size) {
3400             TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
3401             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3402             return 0;
3403         }
3404     }
3405
3406     /* copy command */
3407     gdth_copy_command(hanum);
3408     return cmd_index;
3409 }
3410
3411
3412 /* Controller event handling functions */
3413 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
3414                                       ushort idx, gdth_evt_data *evt)
3415 {
3416     gdth_evt_str *e;
3417     struct timeval tv;
3418
3419     /* no GDTH_LOCK_HA() ! */
3420     TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
3421     if (source == 0)                        /* no source -> no event */
3422         return 0;
3423
3424     if (ebuffer[elastidx].event_source == source &&
3425         ebuffer[elastidx].event_idx == idx &&
3426         ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
3427             !memcmp((char *)&ebuffer[elastidx].event_data.eu,
3428             (char *)&evt->eu, evt->size)) ||
3429         (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
3430             !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
3431             (char *)&evt->event_string)))) {
3432         e = &ebuffer[elastidx];
3433         do_gettimeofday(&tv);
3434         e->last_stamp = tv.tv_sec;
3435         ++e->same_count;
3436     } else {
3437         if (ebuffer[elastidx].event_source != 0) {  /* entry not free ? */
3438             ++elastidx;
3439             if (elastidx == MAX_EVENTS)
3440                 elastidx = 0;
3441             if (elastidx == eoldidx) {              /* reached mark ? */
3442                 ++eoldidx;
3443                 if (eoldidx == MAX_EVENTS)
3444                     eoldidx = 0;
3445             }
3446         }
3447         e = &ebuffer[elastidx];
3448         e->event_source = source;
3449         e->event_idx = idx;
3450         do_gettimeofday(&tv);
3451         e->first_stamp = e->last_stamp = tv.tv_sec;
3452         e->same_count = 1;
3453         e->event_data = *evt;
3454         e->application = 0;
3455     }
3456     return e;
3457 }
3458
3459 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
3460 {
3461     gdth_evt_str *e;
3462     int eindex;
3463     ulong flags;
3464
3465     TRACE2(("gdth_read_event() handle %d\n", handle));
3466     GDTH_LOCK_HA(ha, flags);
3467     if (handle == -1)
3468         eindex = eoldidx;
3469     else
3470         eindex = handle;
3471     estr->event_source = 0;
3472
3473     if (eindex >= MAX_EVENTS) {
3474         GDTH_UNLOCK_HA(ha, flags);
3475         return eindex;
3476     }
3477     e = &ebuffer[eindex];
3478     if (e->event_source != 0) {
3479         if (eindex != elastidx) {
3480             if (++eindex == MAX_EVENTS)
3481                 eindex = 0;
3482         } else {
3483             eindex = -1;
3484         }
3485         memcpy(estr, e, sizeof(gdth_evt_str));
3486     }
3487     GDTH_UNLOCK_HA(ha, flags);
3488     return eindex;
3489 }
3490
3491 static void gdth_readapp_event(gdth_ha_str *ha,
3492                                unchar application, gdth_evt_str *estr)
3493 {
3494     gdth_evt_str *e;
3495     int eindex;
3496     ulong flags;
3497     unchar found = FALSE;
3498
3499     TRACE2(("gdth_readapp_event() app. %d\n", application));
3500     GDTH_LOCK_HA(ha, flags);
3501     eindex = eoldidx;
3502     for (;;) {
3503         e = &ebuffer[eindex];
3504         if (e->event_source == 0)
3505             break;
3506         if ((e->application & application) == 0) {
3507             e->application |= application;
3508             found = TRUE;
3509             break;
3510         }
3511         if (eindex == elastidx)
3512             break;
3513         if (++eindex == MAX_EVENTS)
3514             eindex = 0;
3515     }
3516     if (found)
3517         memcpy(estr, e, sizeof(gdth_evt_str));
3518     else
3519         estr->event_source = 0;
3520     GDTH_UNLOCK_HA(ha, flags);
3521 }
3522
3523 static void gdth_clear_events(void)
3524 {
3525     TRACE(("gdth_clear_events()"));
3526
3527     eoldidx = elastidx = 0;
3528     ebuffer[0].event_source = 0;
3529 }
3530
3531
3532 /* SCSI interface functions */
3533
3534 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3535 static irqreturn_t gdth_interrupt(int irq,void *dev_id,struct pt_regs *regs)
3536 #else
3537 static void gdth_interrupt(int irq,void *dev_id,struct pt_regs *regs)
3538 #endif
3539 {
3540     register gdth_ha_str *ha;
3541     gdt6m_dpram_str *dp6m_ptr = NULL;
3542     gdt6_dpram_str *dp6_ptr;
3543     gdt2_dpram_str *dp2_ptr;
3544     Scsi_Cmnd *scp;
3545     int hanum, rval, i;
3546     unchar IStatus;
3547     ushort Service;
3548     ulong flags = 0;
3549 #ifdef INT_COAL
3550     int coalesced = FALSE;
3551     int next = FALSE;
3552     gdth_coal_status *pcs = NULL;
3553     int act_int_coal = 0;
3554 #endif
3555
3556     TRACE(("gdth_interrupt() IRQ %d\n",irq));
3557
3558     /* if polling and not from gdth_wait() -> return */
3559     if (gdth_polling) {
3560         if (!gdth_from_wait) {
3561 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3562             return IRQ_HANDLED;
3563 #else
3564             return;
3565 #endif
3566         }
3567     }
3568
3569     if (!gdth_polling)
3570         GDTH_LOCK_HA((gdth_ha_str *)dev_id,flags);
3571     wait_index = 0;
3572
3573     /* search controller */
3574     if ((hanum = gdth_get_status(&IStatus,irq)) == -1) {
3575         /* spurious interrupt */
3576         if (!gdth_polling)
3577             GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3578 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3579             return IRQ_HANDLED;
3580 #else
3581             return;
3582 #endif
3583     }
3584     ha = HADATA(gdth_ctr_tab[hanum]);
3585
3586 #ifdef GDTH_STATISTICS
3587     ++act_ints;
3588 #endif
3589
3590 #ifdef INT_COAL
3591     /* See if the fw is returning coalesced status */
3592     if (IStatus == COALINDEX) {
3593         /* Coalesced status.  Setup the initial status
3594            buffer pointer and flags */
3595         pcs = ha->coal_stat;
3596         coalesced = TRUE;
3597         next = TRUE;
3598     }
3599
3600     do {
3601         if (coalesced) {
3602             /* For coalesced requests all status
3603                information is found in the status buffer */
3604             IStatus = (unchar)(pcs->status & 0xff);
3605         }
3606 #endif
3607
3608         if (ha->type == GDT_EISA) {
3609             if (IStatus & 0x80) {                       /* error flag */
3610                 IStatus &= ~0x80;
3611                 ha->status = inw(ha->bmic + MAILBOXREG+8);
3612                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3613             } else                                      /* no error */
3614                 ha->status = S_OK;
3615             ha->info = inl(ha->bmic + MAILBOXREG+12);
3616             ha->service = inw(ha->bmic + MAILBOXREG+10);
3617             ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3618
3619             outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
3620             outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
3621         } else if (ha->type == GDT_ISA) {
3622             dp2_ptr = (gdt2_dpram_str *)ha->brd;
3623             if (IStatus & 0x80) {                       /* error flag */
3624                 IStatus &= ~0x80;
3625                 ha->status = gdth_readw(&dp2_ptr->u.ic.Status);
3626                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3627             } else                                      /* no error */
3628                 ha->status = S_OK;
3629             ha->info = gdth_readl(&dp2_ptr->u.ic.Info[0]);
3630             ha->service = gdth_readw(&dp2_ptr->u.ic.Service);
3631             ha->info2 = gdth_readl(&dp2_ptr->u.ic.Info[1]);
3632
3633             gdth_writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3634             gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3635             gdth_writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
3636         } else if (ha->type == GDT_PCI) {
3637             dp6_ptr = (gdt6_dpram_str *)ha->brd;
3638             if (IStatus & 0x80) {                       /* error flag */
3639                 IStatus &= ~0x80;
3640                 ha->status = gdth_readw(&dp6_ptr->u.ic.Status);
3641                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3642             } else                                      /* no error */
3643                 ha->status = S_OK;
3644             ha->info = gdth_readl(&dp6_ptr->u.ic.Info[0]);
3645             ha->service = gdth_readw(&dp6_ptr->u.ic.Service);
3646             ha->info2 = gdth_readl(&dp6_ptr->u.ic.Info[1]);
3647
3648             gdth_writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3649             gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3650             gdth_writeb(0, &dp6_ptr->io.Sema1);     /* reset status semaphore */
3651         } else if (ha->type == GDT_PCINEW) {
3652             if (IStatus & 0x80) {                       /* error flag */
3653                 IStatus &= ~0x80;
3654                 ha->status = inw(PTR2USHORT(&ha->plx->status));
3655                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3656             } else
3657                 ha->status = S_OK;
3658             ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3659             ha->service = inw(PTR2USHORT(&ha->plx->service));
3660             ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3661
3662             outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3663             outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3664         } else if (ha->type == GDT_PCIMPR) {
3665             dp6m_ptr = (gdt6m_dpram_str *)ha->brd;
3666             if (IStatus & 0x80) {                       /* error flag */
3667                 IStatus &= ~0x80;
3668 #ifdef INT_COAL
3669                 if (coalesced)
3670                     ha->status = pcs->ext_status && 0xffff;
3671                 else
3672 #endif
3673                     ha->status = gdth_readw(&dp6m_ptr->i960r.status);
3674                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3675             } else                                      /* no error */
3676                 ha->status = S_OK;
3677 #ifdef INT_COAL
3678             /* get information */
3679             if (coalesced) {
3680                 ha->info = pcs->info0;
3681                 ha->info2 = pcs->info1;
3682                 ha->service = (pcs->ext_status >> 16) && 0xffff;
3683             } else
3684 #endif
3685             {
3686                 ha->info = gdth_readl(&dp6m_ptr->i960r.info[0]);
3687                 ha->service = gdth_readw(&dp6m_ptr->i960r.service);
3688                 ha->info2 = gdth_readl(&dp6m_ptr->i960r.info[1]);
3689             }
3690             /* event string */
3691             if (IStatus == ASYNCINDEX) {
3692                 if (ha->service != SCREENSERVICE &&
3693                     (ha->fw_vers & 0xff) >= 0x1a) {
3694                     ha->dvr.severity = gdth_readb
3695                         (&((gdt6m_dpram_str *)ha->brd)->i960r.severity);
3696                     for (i = 0; i < 256; ++i) {
3697                         ha->dvr.event_string[i] = gdth_readb
3698                             (&((gdt6m_dpram_str *)ha->brd)->i960r.evt_str[i]);
3699                         if (ha->dvr.event_string[i] == 0)
3700                             break;
3701                     }
3702                 }
3703             }
3704 #ifdef INT_COAL
3705             /* Make sure that non coalesced interrupts get cleared
3706                before being handled by gdth_async_event/gdth_sync_event */
3707             if (!coalesced)
3708 #endif
3709             {
3710                 gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3711                 gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3712             }
3713         } else {
3714             TRACE2(("gdth_interrupt() unknown controller type\n"));
3715             if (!gdth_polling)
3716                 GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3717 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3718             return IRQ_HANDLED;
3719 #else
3720             return;
3721 #endif
3722         }
3723
3724         TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3725                IStatus,ha->status,ha->info));
3726
3727         if (gdth_from_wait) {
3728             wait_hanum = hanum;
3729             wait_index = (int)IStatus;
3730         }
3731
3732         if (IStatus == ASYNCINDEX) {
3733             TRACE2(("gdth_interrupt() async. event\n"));
3734             gdth_async_event(hanum);
3735             if (!gdth_polling)
3736                 GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3737             gdth_next(hanum);
3738 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3739             return IRQ_HANDLED;
3740 #else
3741             return;
3742 #endif
3743         }
3744
3745         if (IStatus == SPEZINDEX) {
3746             TRACE2(("Service unknown or not initialized !\n"));
3747             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3748             ha->dvr.eu.driver.ionode = hanum;
3749             gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3750             if (!gdth_polling)
3751                 GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3752 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3753             return IRQ_HANDLED;
3754 #else
3755             return;
3756 #endif
3757         }
3758         scp     = ha->cmd_tab[IStatus-2].cmnd;
3759         Service = ha->cmd_tab[IStatus-2].service;
3760         ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3761         if (scp == UNUSED_CMND) {
3762             TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3763             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3764             ha->dvr.eu.driver.ionode = hanum;
3765             ha->dvr.eu.driver.index = IStatus;
3766             gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3767             if (!gdth_polling)
3768                 GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3769 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3770             return IRQ_HANDLED;
3771 #else
3772             return;
3773 #endif
3774         }
3775         if (scp == INTERNAL_CMND) {
3776             TRACE(("gdth_interrupt() answer to internal command\n"));
3777             if (!gdth_polling)
3778                 GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3779 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3780             return IRQ_HANDLED;
3781 #else
3782             return;
3783 #endif
3784         }
3785
3786         TRACE(("gdth_interrupt() sync. status\n"));
3787         rval = gdth_sync_event(hanum,Service,IStatus,scp);
3788         if (!gdth_polling)
3789             GDTH_UNLOCK_HA((gdth_ha_str *)dev_id,flags);
3790         if (rval == 2) {
3791             gdth_putq(hanum,scp,scp->SCp.this_residual);
3792         } else if (rval == 1) {
3793 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3794             GDTH_LOCK_SCSI_DONE(scp->device->host, flags);
3795             scp->scsi_done(scp);
3796             GDTH_UNLOCK_SCSI_DONE(scp->device->host, flags);
3797 #else
3798             GDTH_LOCK_SCSI_DONE(flags);
3799             scp->scsi_done(scp);
3800             GDTH_UNLOCK_SCSI_DONE(flags);
3801 #endif
3802         }
3803
3804 #ifdef INT_COAL
3805         if (coalesced) {
3806             /* go to the next status in the status buffer */
3807             ++pcs;
3808 #ifdef GDTH_STATISTICS
3809             ++act_int_coal;
3810             if (act_int_coal > max_int_coal) {
3811                 max_int_coal = act_int_coal;
3812                 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3813             }
3814 #endif
3815             /* see if there is another status */
3816             if (pcs->status == 0)
3817                 /* Stop the coalesce loop */
3818                 next = FALSE;
3819         }
3820     } while (next);
3821
3822     /* coalescing only for new GDT_PCIMPR controllers available */
3823     if (ha->type == GDT_PCIMPR && coalesced) {
3824         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3825         gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3826     }
3827 #endif
3828
3829     gdth_next(hanum);
3830 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3831     return IRQ_HANDLED;
3832 #endif
3833 }
3834
3835 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
3836 {
3837     register gdth_ha_str *ha;
3838     gdth_msg_str *msg;
3839     gdth_cmd_str *cmdp;
3840     unchar b, t;
3841
3842     ha   = HADATA(gdth_ctr_tab[hanum]);
3843     cmdp = ha->pccb;
3844     TRACE(("gdth_sync_event() serv %d status %d\n",
3845            service,ha->status));
3846
3847     if (service == SCREENSERVICE) {
3848         msg  = ha->pmsg;
3849         TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3850                msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3851         if (msg->msg_len > MSGLEN+1)
3852             msg->msg_len = MSGLEN+1;
3853         if (msg->msg_len)
3854             if (!(msg->msg_answer && msg->msg_ext)) {
3855                 msg->msg_text[msg->msg_len] = '\0';
3856                 printk("%s",msg->msg_text);
3857             }
3858
3859         if (msg->msg_ext && !msg->msg_answer) {
3860             while (gdth_test_busy(hanum))
3861                 gdth_delay(0);
3862             cmdp->Service       = SCREENSERVICE;
3863             cmdp->RequestBuffer = SCREEN_CMND;
3864             gdth_get_cmd_index(hanum);
3865             gdth_set_sema0(hanum);
3866             cmdp->OpCode        = GDT_READ;
3867             cmdp->BoardNode     = LOCALBOARD;
3868             cmdp->u.screen.reserved  = 0;
3869             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3870             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3871             ha->cmd_offs_dpmem = 0;
3872             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3873                 + sizeof(ulong64);
3874             ha->cmd_cnt = 0;
3875             gdth_copy_command(hanum);
3876             gdth_release_event(hanum);
3877             return 0;
3878         }
3879
3880         if (msg->msg_answer && msg->msg_alen) {
3881             /* default answers (getchar() not possible) */
3882             if (msg->msg_alen == 1) {
3883                 msg->msg_alen = 0;
3884                 msg->msg_len = 1;
3885                 msg->msg_text[0] = 0;
3886             } else {
3887                 msg->msg_alen -= 2;
3888                 msg->msg_len = 2;
3889                 msg->msg_text[0] = 1;
3890                 msg->msg_text[1] = 0;
3891             }
3892             msg->msg_ext    = 0;
3893             msg->msg_answer = 0;
3894             while (gdth_test_busy(hanum))
3895                 gdth_delay(0);
3896             cmdp->Service       = SCREENSERVICE;
3897             cmdp->RequestBuffer = SCREEN_CMND;
3898             gdth_get_cmd_index(hanum);
3899             gdth_set_sema0(hanum);
3900             cmdp->OpCode        = GDT_WRITE;
3901             cmdp->BoardNode     = LOCALBOARD;
3902             cmdp->u.screen.reserved  = 0;
3903             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3904             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3905             ha->cmd_offs_dpmem = 0;
3906             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3907                 + sizeof(ulong64);
3908             ha->cmd_cnt = 0;
3909             gdth_copy_command(hanum);
3910             gdth_release_event(hanum);
3911             return 0;
3912         }
3913         printk("\n");
3914
3915     } else {
3916 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
3917         b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
3918         t = scp->device->id;
3919 #else
3920         b = virt_ctr ? NUMDATA(scp->host)->busnum : scp->channel;
3921         t = scp->target;
3922 #endif
3923         if (scp->SCp.sent_command == -1 && b != ha->virt_bus) {
3924             ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3925         }
3926         /* cache or raw service */
3927         if (ha->status == S_BSY) {
3928             TRACE2(("Controller busy -> retry !\n"));
3929             if (scp->SCp.sent_command == GDT_MOUNT)
3930                 scp->SCp.sent_command = GDT_CLUST_INFO;
3931             /* retry */
3932             return 2;
3933         }
3934 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,13)
3935         if (scp->SCp.Status == GDTH_MAP_SG)
3936             pci_unmap_sg(ha->pdev,scp->request_buffer,
3937                          scp->use_sg,scp->SCp.Message);
3938         else if (scp->SCp.Status == GDTH_MAP_SINGLE)
3939             pci_unmap_page(ha->pdev,scp->SCp.dma_handle,
3940                            scp->request_bufflen,scp->SCp.Message);
3941         if (scp->SCp.buffer) {
3942             dma_addr_t addr;
3943             addr = (dma_addr_t)(ulong32)scp->SCp.buffer;
3944             if (scp->host_scribble)
3945                 addr += (dma_addr_t)((ulong64)(ulong32)scp->host_scribble << 32);
3946             pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE);
3947         }
3948 #endif
3949         if (ha->status == S_OK) {
3950             scp->SCp.Status = S_OK;
3951             scp->SCp.Message = ha->info;
3952             if (scp->SCp.sent_command != -1) {
3953                 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3954                         scp->SCp.sent_command));
3955                 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3956                 if (scp->SCp.sent_command == GDT_CLUST_INFO) {
3957                     ha->hdr[t].cluster_type = (unchar)ha->info;
3958                     if (!(ha->hdr[t].cluster_type &
3959                         CLUSTER_MOUNTED)) {
3960                         /* NOT MOUNTED -> MOUNT */
3961                         scp->SCp.sent_command = GDT_MOUNT;
3962                         if (ha->hdr[t].cluster_type &
3963                             CLUSTER_RESERVED) {
3964                             /* cluster drive RESERVED (on the other node) */
3965                             scp->SCp.phase = -2;      /* reservation conflict */
3966                         }
3967                     } else {
3968                         scp->SCp.sent_command = -1;
3969                     }
3970                 } else {
3971                     if (scp->SCp.sent_command == GDT_MOUNT) {
3972                         ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3973                         ha->hdr[t].media_changed = TRUE;
3974                     } else if (scp->SCp.sent_command == GDT_UNMOUNT) {
3975                         ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3976                         ha->hdr[t].media_changed = TRUE;
3977                     }
3978                     scp->SCp.sent_command = -1;
3979                 }
3980                 /* retry */
3981                 scp->SCp.this_residual = HIGH_PRI;
3982                 return 2;
3983             } else {
3984                 /* RESERVE/RELEASE ? */
3985                 if (scp->cmnd[0] == RESERVE) {
3986                     ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3987                 } else if (scp->cmnd[0] == RELEASE) {
3988                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3989                 }
3990                 scp->result = DID_OK << 16;
3991                 scp->sense_buffer[0] = 0;
3992             }
3993         } else {
3994             scp->SCp.Status = ha->status;
3995             scp->SCp.Message = ha->info;
3996
3997             if (scp->SCp.sent_command != -1) {
3998                 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3999                         scp->SCp.sent_command, ha->status));
4000                 if (scp->SCp.sent_command == GDT_SCAN_START ||
4001                     scp->SCp.sent_command == GDT_SCAN_END) {
4002                     scp->SCp.sent_command = -1;
4003                     /* retry */
4004                     scp->SCp.this_residual = HIGH_PRI;
4005                     return 2;
4006                 }
4007                 memset((char*)scp->sense_buffer,0,16);
4008                 scp->sense_buffer[0] = 0x70;
4009                 scp->sense_buffer[2] = NOT_READY;
4010                 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
4011             } else if (service == CACHESERVICE) {
4012                 if (ha->status == S_CACHE_UNKNOWN &&
4013                     (ha->hdr[t].cluster_type &
4014                      CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
4015                     /* bus reset -> force GDT_CLUST_INFO */
4016                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
4017                 }
4018                 memset((char*)scp->sense_buffer,0,16);
4019                 if (ha->status == (ushort)S_CACHE_RESERV) {
4020                     scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
4021                 } else {
4022                     scp->sense_buffer[0] = 0x70;
4023                     scp->sense_buffer[2] = NOT_READY;
4024                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
4025                 }
4026                 if (scp->done != gdth_scsi_done) {
4027                     ha->dvr.size = sizeof(ha->dvr.eu.sync);
4028                     ha->dvr.eu.sync.ionode  = hanum;
4029                     ha->dvr.eu.sync.service = service;
4030                     ha->dvr.eu.sync.status  = ha->status;
4031                     ha->dvr.eu.sync.info    = ha->info;
4032                     ha->dvr.eu.sync.hostdrive = t;
4033                     if (ha->status >= 0x8000)
4034                         gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
4035                     else
4036                         gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
4037                 }
4038             } else {
4039                 /* sense buffer filled from controller firmware (DMA) */
4040                 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
4041                     scp->result = DID_BAD_TARGET << 16;
4042                 } else {
4043                     scp->result = (DID_OK << 16) | ha->info;
4044                 }
4045             }
4046         }
4047         if (!scp->SCp.have_data_in)
4048             scp->SCp.have_data_in++;
4049         else
4050             return 1;
4051     }
4052
4053     return 0;
4054 }
4055
4056 static char *async_cache_tab[] = {
4057 /* 0*/  "\011\000\002\002\002\004\002\006\004"
4058         "GDT HA %u, service %u, async. status %u/%lu unknown",
4059 /* 1*/  "\011\000\002\002\002\004\002\006\004"
4060         "GDT HA %u, service %u, async. status %u/%lu unknown",
4061 /* 2*/  "\005\000\002\006\004"
4062         "GDT HA %u, Host Drive %lu not ready",
4063 /* 3*/  "\005\000\002\006\004"
4064         "GDT HA %u, Host Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced",
4065 /* 4*/  "\005\000\002\006\004"
4066         "GDT HA %u, mirror update on Host Drive %lu failed",
4067 /* 5*/  "\005\000\002\006\004"
4068         "GDT HA %u, Mirror Drive %lu failed",
4069 /* 6*/  "\005\000\002\006\004"
4070         "GDT HA %u, Mirror Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced",
4071 /* 7*/  "\005\000\002\006\004"
4072         "GDT HA %u, Host Drive %lu write protected",
4073 /* 8*/  "\005\000\002\006\004"
4074         "GDT HA %u, media changed in Host Drive %lu",
4075 /* 9*/  "\005\000\002\006\004"
4076         "GDT HA %u, Host Drive %lu is offline",
4077 /*10*/  "\005\000\002\006\004"
4078         "GDT HA %u, media change of Mirror Drive %lu",
4079 /*11*/  "\005\000\002\006\004"
4080         "GDT HA %u, Mirror Drive %lu is write protected",
4081 /*12*/  "\005\000\002\006\004"
4082         "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
4083 /*13*/  "\007\000\002\006\002\010\002"
4084         "GDT HA %u, Array Drive %u: Cache Drive %u failed",
4085 /*14*/  "\005\000\002\006\002"
4086         "GDT HA %u, Array Drive %u: FAIL state entered",
4087 /*15*/  "\005\000\002\006\002"
4088         "GDT HA %u, Array Drive %u: error",
4089 /*16*/  "\007\000\002\006\002\010\002"
4090         "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
4091 /*17*/  "\005\000\002\006\002"
4092         "GDT HA %u, Array Drive %u: parity build failed",
4093 /*18*/  "\005\000\002\006\002"
4094         "GDT HA %u, Array Drive %u: drive rebuild failed",
4095 /*19*/  "\005\000\002\010\002"
4096         "GDT HA %u, Test of Hot Fix %u failed",
4097 /*20*/  "\005\000\002\006\002"
4098         "GDT HA %u, Array Drive %u: drive build finished successfully",
4099 /*21*/  "\005\000\002\006\002"
4100         "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
4101 /*22*/  "\007\000\002\006\002\010\002"
4102         "GDT HA %u, Array Drive %u: Hot Fix %u activated",
4103 /*23*/  "\005\000\002\006\002"
4104         "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
4105 /*24*/  "\005\000\002\010\002"
4106         "GDT HA %u, mirror update on Cache Drive %u completed",
4107 /*25*/  "\005\000\002\010\002"
4108         "GDT HA %u, mirror update on Cache Drive %lu failed",
4109 /*26*/  "\005\000\002\006\002"
4110         "GDT HA %u, Array Drive %u: drive rebuild started",
4111 /*27*/  "\005\000\002\012\001"
4112         "GDT HA %u, Fault bus %u: SHELF OK detected",
4113 /*28*/  "\005\000\002\012\001"
4114         "GDT HA %u, Fault bus %u: SHELF not OK detected",
4115 /*29*/  "\007\000\002\012\001\013\001"
4116         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
4117 /*30*/  "\007\000\002\012\001\013\001"
4118         "GDT HA %u, Fault bus %u, ID %u: new disk detected",
4119 /*31*/  "\007\000\002\012\001\013\001"
4120         "GDT HA %u, Fault bus %u, ID %u: old disk detected",
4121 /*32*/  "\007\000\002\012\001\013\001"
4122         "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
4123 /*33*/  "\007\000\002\012\001\013\001"
4124         "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
4125 /*34*/  "\011\000\002\012\001\013\001\006\004"
4126         "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
4127 /*35*/  "\007\000\002\012\001\013\001"
4128         "GDT HA %u, Fault bus %u, ID %u: disk write protected",
4129 /*36*/  "\007\000\002\012\001\013\001"
4130         "GDT HA %u, Fault bus %u, ID %u: disk not available",
4131 /*37*/  "\007\000\002\012\001\006\004"
4132         "GDT HA %u, Fault bus %u: swap detected (%lu)",
4133 /*38*/  "\007\000\002\012\001\013\001"
4134         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
4135 /*39*/  "\007\000\002\012\001\013\001"
4136         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
4137 /*40*/  "\007\000\002\012\001\013\001"
4138         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
4139 /*41*/  "\007\000\002\012\001\013\001"
4140         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
4141 /*42*/  "\005\000\002\006\002"
4142         "GDT HA %u, Array Drive %u: drive build started",
4143 /*43*/  "\003\000\002"
4144         "GDT HA %u, DRAM parity error detected",
4145 /*44*/  "\005\000\002\006\002"
4146         "GDT HA %u, Mirror Drive %u: update started",
4147 /*45*/  "\007\000\002\006\002\010\002"
4148         "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
4149 /*46*/  "\005\000\002\006\002"
4150         "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
4151 /*47*/  "\005\000\002\006\002"
4152         "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
4153 /*48*/  "\005\000\002\006\002"
4154         "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
4155 /*49*/  "\005\000\002\006\002"
4156         "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
4157 /*50*/  "\007\000\002\012\001\013\001"
4158         "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
4159 /*51*/  "\005\000\002\006\002"
4160         "GDT HA %u, Array Drive %u: expand started",
4161 /*52*/  "\005\000\002\006\002"
4162         "GDT HA %u, Array Drive %u: expand finished successfully",
4163 /*53*/  "\005\000\002\006\002"
4164         "GDT HA %u, Array Drive %u: expand failed",
4165 /*54*/  "\003\000\002"
4166         "GDT HA %u, CPU temperature critical",
4167 /*55*/  "\003\000\002"
4168         "GDT HA %u, CPU temperature OK",
4169 /*56*/  "\005\000\002\006\004"
4170         "GDT HA %u, Host drive %lu created",
4171 /*57*/  "\005\000\002\006\002"
4172         "GDT HA %u, Array Drive %u: expand restarted",
4173 /*58*/  "\005\000\002\006\002"
4174         "GDT HA %u, Array Drive %u: expand stopped",
4175 /*59*/  "\005\000\002\010\002"
4176         "GDT HA %u, Mirror Drive %u: drive build quited",
4177 /*60*/  "\005\000\002\006\002"
4178         "GDT HA %u, Array Drive %u: parity build quited",
4179 /*61*/  "\005\000\002\006\002"
4180         "GDT HA %u, Array Drive %u: drive rebuild quited",
4181 /*62*/  "\005\000\002\006\002"
4182         "GDT HA %u, Array Drive %u: parity verify started",
4183 /*63*/  "\005\000\002\006\002"
4184         "GDT HA %u, Array Drive %u: parity verify done",
4185 /*64*/  "\005\000\002\006\002"
4186         "GDT HA %u, Array Drive %u: parity verify failed",
4187 /*65*/  "\005\000\002\006\002"
4188         "GDT HA %u, Array Drive %u: parity error detected",
4189 /*66*/  "\005\000\002\006\002"
4190         "GDT HA %u, Array Drive %u: parity verify quited",
4191 /*67*/  "\005\000\002\006\002"
4192         "GDT HA %u, Host Drive %u reserved",
4193 /*68*/  "\005\000\002\006\002"
4194         "GDT HA %u, Host Drive %u mounted and released",
4195 /*69*/  "\005\000\002\006\002"
4196         "GDT HA %u, Host Drive %u released",
4197 /*70*/  "\003\000\002"
4198         "GDT HA %u, DRAM error detected and corrected with ECC",
4199 /*71*/  "\003\000\002"
4200         "GDT HA %u, Uncorrectable DRAM error detected with ECC",
4201 /*72*/  "\011\000\002\012\001\013\001\014\001"
4202         "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
4203 /*73*/  "\005\000\002\006\002"
4204         "GDT HA %u, Host drive %u resetted locally",
4205 /*74*/  "\005\000\002\006\002"
4206         "GDT HA %u, Host drive %u resetted remotely",
4207 /*75*/  "\003\000\002"
4208         "GDT HA %u, async. status 75 unknown",
4209 };
4210
4211
4212 static int gdth_async_event(int hanum)
4213 {
4214     gdth_ha_str *ha;
4215     gdth_cmd_str *cmdp;
4216     int cmd_index;
4217
4218     ha  = HADATA(gdth_ctr_tab[hanum]);
4219     cmdp= ha->pccb;
4220     TRACE2(("gdth_async_event() ha %d serv %d\n",
4221             hanum,ha->service));
4222
4223     if (ha->service == SCREENSERVICE) {
4224         if (ha->status == MSG_REQUEST) {
4225             while (gdth_test_busy(hanum))
4226                 gdth_delay(0);
4227             cmdp->Service       = SCREENSERVICE;
4228             cmdp->RequestBuffer = SCREEN_CMND;
4229             cmd_index = gdth_get_cmd_index(hanum);
4230             gdth_set_sema0(hanum);
4231             cmdp->OpCode        = GDT_READ;
4232             cmdp->BoardNode     = LOCALBOARD;
4233             cmdp->u.screen.reserved  = 0;
4234             cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
4235             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
4236             ha->cmd_offs_dpmem = 0;
4237             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
4238                 + sizeof(ulong64);
4239             ha->cmd_cnt = 0;
4240             gdth_copy_command(hanum);
4241             if (ha->type == GDT_EISA)
4242                 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
4243             else if (ha->type == GDT_ISA)
4244                 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
4245             else
4246                 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
4247                        (ushort)((ha->brd_phys>>3)&0x1f));
4248             gdth_release_event(hanum);
4249         }
4250
4251     } else {
4252         if (ha->type == GDT_PCIMPR &&
4253             (ha->fw_vers & 0xff) >= 0x1a) {
4254             ha->dvr.size = 0;
4255             ha->dvr.eu.async.ionode = hanum;
4256             ha->dvr.eu.async.status  = ha->status;
4257             /* severity and event_string already set! */
4258         } else {
4259             ha->dvr.size = sizeof(ha->dvr.eu.async);
4260             ha->dvr.eu.async.ionode   = hanum;
4261             ha->dvr.eu.async.service = ha->service;
4262             ha->dvr.eu.async.status  = ha->status;
4263             ha->dvr.eu.async.info    = ha->info;
4264             *(ulong32 *)ha->dvr.eu.async.scsi_coord  = ha->info2;
4265         }
4266         gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
4267         gdth_log_event( &ha->dvr, NULL );
4268
4269         /* new host drive from expand? */
4270         if (ha->service == CACHESERVICE && ha->status == 56) {
4271             TRACE2(("gdth_async_event(): new host drive %d created\n",
4272                     (ushort)ha->info));
4273             /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
4274         }
4275     }
4276     return 1;
4277 }
4278
4279 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
4280 {
4281     gdth_stackframe stack;
4282     char *f = NULL;
4283     int i,j;
4284
4285     TRACE2(("gdth_log_event()\n"));
4286     if (dvr->size == 0) {
4287         if (buffer == NULL) {
4288             printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
4289         } else {
4290             sprintf(buffer,"Adapter %d: %s\n",
4291                 dvr->eu.async.ionode,dvr->event_string);
4292         }
4293     } else if (dvr->eu.async.service == CACHESERVICE &&
4294         INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
4295         TRACE2(("GDT: Async. event cache service, event no.: %d\n",
4296                 dvr->eu.async.status));
4297
4298         f = async_cache_tab[dvr->eu.async.status];
4299
4300         /* i: parameter to push, j: stack element to fill */
4301         for (j=0,i=1; i < f[0]; i+=2) {
4302             switch (f[i+1]) {
4303               case 4:
4304                 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
4305                 break;
4306               case 2:
4307                 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
4308                 break;
4309               case 1:
4310                 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
4311                 break;
4312               default:
4313                 break;
4314             }
4315         }
4316
4317         if (buffer == NULL) {
4318             printk(&f[(int)f[0]],stack);
4319             printk("\n");
4320         } else {
4321             sprintf(buffer,&f[(int)f[0]],stack);
4322         }
4323
4324     } else {
4325         if (buffer == NULL) {
4326             printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
4327                    dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4328         } else {
4329             sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
4330                     dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4331         }
4332     }
4333 }
4334
4335 #ifdef GDTH_STATISTICS
4336 void gdth_timeout(ulong data)
4337 {
4338     ulong32 i;
4339     Scsi_Cmnd *nscp;
4340     gdth_ha_str *ha;
4341     ulong flags;
4342     int hanum = 0;
4343
4344     ha = HADATA(gdth_ctr_tab[hanum]);
4345     GDTH_LOCK_HA(ha, flags);
4346
4347     for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
4348         if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
4349             ++act_stats;
4350
4351     for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
4352         ++act_rq;
4353
4354     TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
4355             act_ints, act_ios, act_stats, act_rq));
4356     act_ints = act_ios = 0;
4357
4358     gdth_timer.expires = jiffies + 30 * HZ;
4359     add_timer(&gdth_timer);
4360     GDTH_UNLOCK_HA(ha, flags);
4361 }
4362 #endif
4363
4364 GDTH_INITFUNC(void, internal_setup(char *str,int *ints))
4365 {
4366     int i, argc;
4367     char *cur_str, *argv;
4368
4369     TRACE2(("internal_setup() str %s ints[0] %d\n",
4370             str ? str:"NULL", ints ? ints[0]:0));
4371
4372     /* read irq[] from ints[] */
4373     if (ints) {
4374         argc = ints[0];
4375         if (argc > 0) {
4376             if (argc > MAXHA)
4377                 argc = MAXHA;
4378             for (i = 0; i < argc; ++i)
4379                 irq[i] = ints[i+1];
4380         }
4381     }
4382
4383     /* analyse string */
4384     argv = str;
4385     while (argv && (cur_str = strchr(argv, ':'))) {
4386         int val = 0, c = *++cur_str;
4387
4388         if (c == 'n' || c == 'N')
4389             val = 0;
4390         else if (c == 'y' || c == 'Y')
4391             val = 1;
4392         else
4393             val = (int)simple_strtoul(cur_str, NULL, 0);
4394
4395         if (!strncmp(argv, "disable:", 8))
4396             disable = val;
4397         else if (!strncmp(argv, "reserve_mode:", 13))
4398             reserve_mode = val;
4399         else if (!strncmp(argv, "reverse_scan:", 13))
4400             reverse_scan = val;
4401         else if (!strncmp(argv, "hdr_channel:", 12))
4402             hdr_channel = val;
4403         else if (!strncmp(argv, "max_ids:", 8))
4404             max_ids = val;
4405         else if (!strncmp(argv, "rescan:", 7))
4406             rescan = val;
4407         else if (!strncmp(argv, "virt_ctr:", 9))
4408             virt_ctr = val;
4409         else if (!strncmp(argv, "shared_access:", 14))
4410             shared_access = val;
4411         else if (!strncmp(argv, "probe_eisa_isa:", 15))
4412             probe_eisa_isa = val;
4413         else if (!strncmp(argv, "reserve_list:", 13)) {
4414             reserve_list[0] = val;
4415             for (i = 1; i < MAX_RES_ARGS; i++) {
4416                 cur_str = strchr(cur_str, ',');
4417                 if (!cur_str)
4418                     break;
4419                 if (!isdigit((int)*++cur_str)) {
4420                     --cur_str;
4421                     break;
4422                 }
4423                 reserve_list[i] =
4424                     (int)simple_strtoul(cur_str, NULL, 0);
4425             }
4426             if (!cur_str)
4427                 break;
4428             argv = ++cur_str;
4429             continue;
4430         }
4431
4432         if ((argv = strchr(argv, ',')))
4433             ++argv;
4434     }
4435 }
4436
4437 GDTH_INITFUNC(int, option_setup(char *str))
4438 {
4439     int ints[MAXHA];
4440     char *cur = str;
4441     int i = 1;
4442
4443     TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
4444
4445     while (cur && isdigit(*cur) && i <= MAXHA) {
4446         ints[i++] = simple_strtoul(cur, NULL, 0);
4447         if ((cur = strchr(cur, ',')) != NULL) cur++;
4448     }
4449
4450     ints[0] = i - 1;
4451     internal_setup(cur, ints);
4452     return 1;
4453 }
4454
4455 GDTH_INITFUNC(int, gdth_detect(Scsi_Host_Template *shtp))
4456 {
4457     struct Scsi_Host *shp;
4458     gdth_pci_str pcistr[MAXHA];
4459     gdth_ha_str *ha;
4460     ulong32 isa_bios;
4461     ushort eisa_slot;
4462     int i,hanum,cnt,ctr,err;
4463     unchar b;
4464
4465
4466 #ifdef DEBUG_GDTH
4467     printk("GDT: This driver contains debugging information !! Trace level = %d\n",
4468         DebugState);
4469     printk("     Destination of debugging information: ");
4470 #ifdef __SERIAL__
4471 #ifdef __COM2__
4472     printk("Serial port COM2\n");
4473 #else
4474     printk("Serial port COM1\n");
4475 #endif
4476 #else
4477     printk("Console\n");
4478 #endif
4479     gdth_delay(3000);
4480 #endif
4481
4482     TRACE(("gdth_detect()\n"));
4483
4484     if (disable) {
4485         printk("GDT-HA: Controller driver disabled from command line !\n");
4486         return 0;
4487     }
4488
4489     printk("GDT-HA: Storage RAID Controller Driver. Version: %s \n",GDTH_VERSION_STR);
4490     /* initializations */
4491     gdth_polling = TRUE; b = 0;
4492     gdth_clear_events();
4493
4494     /* As default we do not probe for EISA or ISA controllers */
4495     if (probe_eisa_isa) {
4496         /* scanning for controllers, at first: ISA controller */
4497         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
4498             dma_addr_t scratch_dma_handle;
4499             scratch_dma_handle = 0;
4500
4501             if (gdth_ctr_count >= MAXHA)
4502                 break;
4503             if (gdth_search_isa(isa_bios)) {        /* controller found */
4504                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4505                 if (shp == NULL)
4506                     continue;
4507
4508                 ha = HADATA(shp);
4509                 if (!gdth_init_isa(isa_bios,ha)) {
4510                     scsi_unregister(shp);
4511                     continue;
4512                 }
4513 #ifdef __ia64__
4514                 break;
4515 #else
4516                 /* controller found and initialized */
4517                 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4518                        isa_bios,ha->irq,ha->drq);
4519
4520                 if (request_irq(ha->irq,gdth_interrupt,SA_INTERRUPT,"gdth",ha)) {
4521                     printk("GDT-ISA: Unable to allocate IRQ\n");
4522                     scsi_unregister(shp);
4523                     continue;
4524                 }
4525                 if (request_dma(ha->drq,"gdth")) {
4526                     printk("GDT-ISA: Unable to allocate DMA channel\n");
4527                     free_irq(ha->irq,ha);
4528                     scsi_unregister(shp);
4529                     continue;
4530                 }
4531                 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4532                 enable_dma(ha->drq);
4533                 shp->unchecked_isa_dma = 1;
4534                 shp->irq = ha->irq;
4535                 shp->dma_channel = ha->drq;
4536                 hanum = gdth_ctr_count;
4537                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4538                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4539
4540                 NUMDATA(shp)->hanum = (ushort)hanum;
4541                 NUMDATA(shp)->busnum= 0;
4542
4543                 ha->pccb = CMDDATA(shp);
4544                 ha->ccb_phys = 0L;
4545 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4546                 ha->pdev = NULL;
4547                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4548                                                     &scratch_dma_handle);
4549                 ha->scratch_phys = scratch_dma_handle;
4550                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4551                                                 &scratch_dma_handle);
4552                 ha->msg_phys = scratch_dma_handle;
4553 #ifdef INT_COAL
4554                 ha->coal_stat = (gdth_coal_status *)
4555                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4556                         MAXOFFSETS, &scratch_dma_handle);
4557                 ha->coal_stat_phys = scratch_dma_handle;
4558 #endif
4559 #else
4560                 ha->pscratch = scsi_init_malloc(GDTH_SCRATCH, GFP_ATOMIC | GFP_DMA);
4561                 if (ha->pscratch)
4562                     ha->scratch_phys = virt_to_bus(ha->pscratch);
4563                 ha->pmsg = scsi_init_malloc(sizeof(gdth_msg_str), GFP_ATOMIC | GFP_DMA);
4564                 if (ha->pmsg)
4565                     ha->msg_phys = virt_to_bus(ha->pmsg);
4566 #ifdef INT_COAL
4567                 ha->coal_stat =
4568                     scsi_init_malloc(sizeof(gdth_coal_status) * MAXOFFSETS,
4569                                      GFP_ATOMIC | GFP_DMA);
4570                 if (ha->coal_stat)
4571                     ha->coal_stat_phys = virt_to_bus(ha->coal_stat);
4572 #endif
4573 #endif
4574                 ha->scratch_busy = FALSE;
4575                 ha->req_first = NULL;
4576                 ha->tid_cnt = MAX_HDRIVES;
4577                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4578                     ha->tid_cnt = max_ids;
4579                 for (i=0; i<GDTH_MAXCMDS; ++i)
4580                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4581                 ha->scan_mode = rescan ? 0x10 : 0;
4582
4583                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4584                     !gdth_search_drives(hanum)) {
4585                     printk("GDT-ISA: Error during device scan\n");
4586                     --gdth_ctr_count;
4587                     --gdth_ctr_vcount;
4588 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4589 #ifdef INT_COAL
4590                     if (ha->coal_stat)
4591                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4592                                             MAXOFFSETS, ha->coal_stat,
4593                                             ha->coal_stat_phys);
4594 #endif
4595                     if (ha->pscratch)
4596                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4597                                             ha->pscratch, ha->scratch_phys);
4598                     if (ha->pmsg)
4599                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4600                                             ha->pmsg, ha->msg_phys);
4601 #else
4602 #ifdef INT_COAL
4603                     if (ha->coal_stat)
4604                         scsi_init_free((void *)ha->coal_stat,
4605                                        sizeof(gdth_coal_status) * MAXOFFSETS);
4606 #endif
4607                     if (ha->pscratch)
4608                         scsi_init_free((void *)ha->pscratch, GDTH_SCRATCH);
4609                     if (ha->pmsg)
4610                         scsi_init_free((void *)ha->pmsg, sizeof(gdth_msg_str));
4611 #endif
4612                     free_irq(ha->irq,ha);
4613                     scsi_unregister(shp);
4614                     continue;
4615                 }
4616                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4617                     hdr_channel = ha->bus_cnt;
4618                 ha->virt_bus = hdr_channel;
4619
4620 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4621 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4622     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4623                 shp->highmem_io  = 0;
4624 #endif
4625                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4626                     shp->max_cmd_len = 16;
4627 #endif
4628                 shp->max_id      = ha->tid_cnt;
4629                 shp->max_lun     = MAXLUN;
4630                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4631                 if (virt_ctr) {
4632                     virt_ctr = 1;
4633                     /* register addit. SCSI channels as virtual controllers */
4634                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4635                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4636                         shp->unchecked_isa_dma = 1;
4637                         shp->irq = ha->irq;
4638                         shp->dma_channel = ha->drq;
4639                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4640                         NUMDATA(shp)->hanum = (ushort)hanum;
4641                         NUMDATA(shp)->busnum = b;
4642                     }
4643                 }
4644
4645                 GDTH_INIT_LOCK_HA(ha);
4646                 gdth_enable_int(hanum);
4647 #endif /* !__ia64__ */
4648             }
4649         }
4650
4651         /* scanning for EISA controllers */
4652         for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
4653             dma_addr_t scratch_dma_handle;
4654             scratch_dma_handle = 0;
4655
4656             if (gdth_ctr_count >= MAXHA)
4657                 break;
4658             if (gdth_search_eisa(eisa_slot)) {      /* controller found */
4659                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4660                 if (shp == NULL)
4661                     continue;
4662
4663                 ha = HADATA(shp);
4664                 if (!gdth_init_eisa(eisa_slot,ha)) {
4665                     scsi_unregister(shp);
4666                     continue;
4667                 }
4668                 /* controller found and initialized */
4669                 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4670                        eisa_slot>>12,ha->irq);
4671
4672                 if (request_irq(ha->irq,gdth_interrupt,SA_INTERRUPT,"gdth",ha)) {
4673                     printk("GDT-EISA: Unable to allocate IRQ\n");
4674                     scsi_unregister(shp);
4675                     continue;
4676                 }
4677                 shp->unchecked_isa_dma = 0;
4678                 shp->irq = ha->irq;
4679                 shp->dma_channel = 0xff;
4680                 hanum = gdth_ctr_count;
4681                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4682                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4683
4684                 NUMDATA(shp)->hanum = (ushort)hanum;
4685                 NUMDATA(shp)->busnum= 0;
4686                 TRACE2(("EISA detect Bus 0: hanum %d\n",
4687                         NUMDATA(shp)->hanum));
4688
4689                 ha->pccb = CMDDATA(shp);
4690                 ha->ccb_phys = 0L;
4691 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4692                 ha->pdev = NULL;
4693                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4694                                                     &scratch_dma_handle);
4695                 ha->scratch_phys = scratch_dma_handle;
4696                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4697                                                 &scratch_dma_handle);
4698                 ha->msg_phys = scratch_dma_handle;
4699 #ifdef INT_COAL
4700                 ha->coal_stat = (gdth_coal_status *)
4701                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4702                                          MAXOFFSETS, &scratch_dma_handle);
4703                 ha->coal_stat_phys = scratch_dma_handle;
4704 #endif
4705                 ha->ccb_phys =
4706                     pci_map_single(ha->pdev,ha->pccb,
4707                                    sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4708 #else
4709                 ha->pscratch = scsi_init_malloc(GDTH_SCRATCH, GFP_ATOMIC | GFP_DMA);
4710                 if (ha->pscratch)
4711                     ha->scratch_phys = virt_to_bus(ha->pscratch);
4712                 ha->pmsg = scsi_init_malloc(sizeof(gdth_msg_str), GFP_ATOMIC | GFP_DMA);
4713                 if (ha->pmsg)
4714                     ha->msg_phys = virt_to_bus(ha->pmsg);
4715 #ifdef INT_COAL
4716                 ha->coal_stat =
4717                     scsi_init_malloc(sizeof(gdth_coal_status) * MAXOFFSETS,
4718                                      GFP_ATOMIC | GFP_DMA);
4719                 if (ha->coal_stat)
4720                     ha->coal_stat_phys = virt_to_bus(ha->coal_stat);
4721 #endif
4722                 ha->ccb_phys = virt_to_bus(ha->pccb);
4723 #endif
4724                 ha->scratch_busy = FALSE;
4725                 ha->req_first = NULL;
4726                 ha->tid_cnt = MAX_HDRIVES;
4727                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4728                     ha->tid_cnt = max_ids;
4729                 for (i=0; i<GDTH_MAXCMDS; ++i)
4730                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4731                 ha->scan_mode = rescan ? 0x10 : 0;
4732
4733                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4734                     !gdth_search_drives(hanum)) {
4735                     printk("GDT-EISA: Error during device scan\n");
4736                     --gdth_ctr_count;
4737                     --gdth_ctr_vcount;
4738 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4739 #ifdef INT_COAL
4740                     if (ha->coal_stat)
4741                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4742                                             MAXOFFSETS, ha->coal_stat,
4743                                             ha->coal_stat_phys);
4744 #endif
4745                     if (ha->pscratch)
4746                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4747                                             ha->pscratch, ha->scratch_phys);
4748                     if (ha->pmsg)
4749                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4750                                             ha->pmsg, ha->msg_phys);
4751                     if (ha->ccb_phys)
4752                         pci_unmap_single(ha->pdev,ha->ccb_phys,
4753                                         sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4754 #else
4755 #ifdef INT_COAL
4756                     if (ha->coal_stat)
4757                         scsi_init_free((void *)ha->coal_stat,
4758                                        sizeof(gdth_coal_status) * MAXOFFSETS);
4759 #endif
4760                     if (ha->pscratch)
4761                         scsi_init_free((void *)ha->pscratch, GDTH_SCRATCH);
4762                     if (ha->pmsg)
4763                         scsi_init_free((void *)ha->pmsg, sizeof(gdth_msg_str));
4764 #endif
4765                     free_irq(ha->irq,ha);
4766                     scsi_unregister(shp);
4767                     continue;
4768                 }
4769                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4770                     hdr_channel = ha->bus_cnt;
4771                 ha->virt_bus = hdr_channel;
4772
4773 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4774 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4775     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4776                 shp->highmem_io  = 0;
4777 #endif
4778                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4779                     shp->max_cmd_len = 16;
4780 #endif
4781                 shp->max_id      = ha->tid_cnt;
4782                 shp->max_lun     = MAXLUN;
4783                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4784                 if (virt_ctr) {
4785                     virt_ctr = 1;
4786                     /* register addit. SCSI channels as virtual controllers */
4787                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4788                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4789                         shp->unchecked_isa_dma = 0;
4790                         shp->irq = ha->irq;
4791                         shp->dma_channel = 0xff;
4792                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4793                         NUMDATA(shp)->hanum = (ushort)hanum;
4794                         NUMDATA(shp)->busnum = b;
4795                     }
4796                 }
4797
4798                 GDTH_INIT_LOCK_HA(ha);
4799                 gdth_enable_int(hanum);
4800             }
4801         }
4802     }
4803
4804     /* scanning for PCI controllers */
4805     cnt = gdth_search_pci(pcistr);
4806     printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
4807     gdth_sort_pci(pcistr,cnt);
4808     for (ctr = 0; ctr < cnt; ++ctr) {
4809         dma_addr_t scratch_dma_handle;
4810         scratch_dma_handle = 0;
4811
4812         if (gdth_ctr_count >= MAXHA)
4813             break;
4814         shp = scsi_register(shtp,sizeof(gdth_ext_str));
4815         if (shp == NULL)
4816             continue;
4817
4818         ha = HADATA(shp);
4819         if (!gdth_init_pci(&pcistr[ctr],ha)) {
4820             scsi_unregister(shp);
4821             continue;
4822         }
4823         /* controller found and initialized */
4824         printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4825                pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
4826
4827         if (request_irq(ha->irq, gdth_interrupt,
4828                         SA_INTERRUPT|SA_SHIRQ, "gdth", ha))
4829         {
4830             printk("GDT-PCI: Unable to allocate IRQ\n");
4831             scsi_unregister(shp);
4832             continue;
4833         }
4834         shp->unchecked_isa_dma = 0;
4835         shp->irq = ha->irq;
4836         shp->dma_channel = 0xff;
4837         hanum = gdth_ctr_count;
4838         gdth_ctr_tab[gdth_ctr_count++] = shp;
4839         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4840
4841         NUMDATA(shp)->hanum = (ushort)hanum;
4842         NUMDATA(shp)->busnum= 0;
4843
4844         ha->pccb = CMDDATA(shp);
4845         ha->ccb_phys = 0L;
4846 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4847         ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4848                                             &scratch_dma_handle);
4849         ha->scratch_phys = scratch_dma_handle;
4850         ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4851                                         &scratch_dma_handle);
4852         ha->msg_phys = scratch_dma_handle;
4853 #ifdef INT_COAL
4854         ha->coal_stat = (gdth_coal_status *)
4855             pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4856                                  MAXOFFSETS, &scratch_dma_handle);
4857         ha->coal_stat_phys = scratch_dma_handle;
4858 #endif
4859 #else
4860         ha->pscratch = scsi_init_malloc(GDTH_SCRATCH, GFP_ATOMIC | GFP_DMA);
4861         if (ha->pscratch)
4862             ha->scratch_phys = virt_to_bus(ha->pscratch);
4863         ha->pmsg = scsi_init_malloc(sizeof(gdth_msg_str), GFP_ATOMIC | GFP_DMA);
4864         if (ha->pmsg)
4865             ha->msg_phys = virt_to_bus(ha->pmsg);
4866 #ifdef INT_COAL
4867         ha->coal_stat =
4868             scsi_init_malloc(sizeof(gdth_coal_status) * MAXOFFSETS,
4869                              GFP_ATOMIC | GFP_DMA);
4870         if (ha->coal_stat)
4871             ha->coal_stat_phys = virt_to_bus(ha->coal_stat);
4872 #endif
4873 #endif
4874         ha->scratch_busy = FALSE;
4875         ha->req_first = NULL;
4876         ha->tid_cnt = pcistr[ctr].device_id >= 0x200 ? MAXID : MAX_HDRIVES;
4877         if (max_ids > 0 && max_ids < ha->tid_cnt)
4878             ha->tid_cnt = max_ids;
4879         for (i=0; i<GDTH_MAXCMDS; ++i)
4880             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4881         ha->scan_mode = rescan ? 0x10 : 0;
4882
4883         err = FALSE;
4884         if (ha->pscratch == NULL || ha->pmsg == NULL ||
4885             !gdth_search_drives(hanum)) {
4886             err = TRUE;
4887         } else {
4888             if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4889                 hdr_channel = ha->bus_cnt;
4890             ha->virt_bus = hdr_channel;
4891
4892 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4893 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4894             scsi_set_device(shp, &pcistr[ctr].pdev->dev);
4895 #else
4896             scsi_set_pci_device(shp, pcistr[ctr].pdev);
4897 #endif
4898             if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
4899                 /* 64-bit DMA only supported from FW >= x.43 */
4900                 (!ha->dma64_support)) {
4901                 if (pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffff)) {
4902                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
4903                     err = TRUE;
4904                 }
4905             } else {
4906                 shp->max_cmd_len = 16;
4907                 if (!pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffffffffffffULL)) {
4908                     printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
4909                 } else if (pci_set_dma_mask(pcistr[ctr].pdev, 0xffffffff)) {
4910                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
4911                     err = TRUE;
4912                 }
4913             }
4914 #endif
4915         }
4916
4917         if (err) {
4918             printk("GDT-PCI %d: Error during device scan\n", hanum);
4919             --gdth_ctr_count;
4920             --gdth_ctr_vcount;
4921 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
4922 #ifdef INT_COAL
4923             if (ha->coal_stat)
4924                 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4925                                     MAXOFFSETS, ha->coal_stat,
4926                                     ha->coal_stat_phys);
4927 #endif
4928             if (ha->pscratch)
4929                 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4930                                     ha->pscratch, ha->scratch_phys);
4931             if (ha->pmsg)
4932                 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4933                                     ha->pmsg, ha->msg_phys);
4934 #else
4935 #ifdef INT_COAL
4936             if (ha->coal_stat)
4937                 scsi_init_free((void *)ha->coal_stat,
4938                                sizeof(gdth_coal_status) * MAXOFFSETS);
4939 #endif
4940             if (ha->pscratch)
4941                 scsi_init_free((void *)ha->pscratch, GDTH_SCRATCH);
4942             if (ha->pmsg)
4943                 scsi_init_free((void *)ha->pmsg, sizeof(gdth_msg_str));
4944 #endif
4945             free_irq(ha->irq,ha);
4946             scsi_unregister(shp);
4947             continue;
4948         }
4949
4950         shp->max_id      = ha->tid_cnt;
4951         shp->max_lun     = MAXLUN;
4952         shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4953         if (virt_ctr) {
4954             virt_ctr = 1;
4955             /* register addit. SCSI channels as virtual controllers */
4956             for (b = 1; b < ha->bus_cnt + 1; ++b) {
4957                 shp = scsi_register(shtp,sizeof(gdth_num_str));
4958                 shp->unchecked_isa_dma = 0;
4959                 shp->irq = ha->irq;
4960                 shp->dma_channel = 0xff;
4961                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4962                 NUMDATA(shp)->hanum = (ushort)hanum;
4963                 NUMDATA(shp)->busnum = b;
4964             }
4965         }
4966
4967
4968         GDTH_INIT_LOCK_HA(ha);
4969         gdth_enable_int(hanum);
4970     }
4971
4972     TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
4973     if (gdth_ctr_count > 0) {
4974 #ifdef GDTH_STATISTICS
4975         TRACE2(("gdth_detect(): Initializing timer !\n"));
4976         init_timer(&gdth_timer);
4977         gdth_timer.expires = jiffies + HZ;
4978         gdth_timer.data = 0L;
4979         gdth_timer.function = gdth_timeout;
4980         add_timer(&gdth_timer);
4981 #endif
4982         major = register_chrdev(0,"gdth",&gdth_fops);
4983         register_reboot_notifier(&gdth_notifier);
4984     }
4985     gdth_polling = FALSE;
4986     return gdth_ctr_vcount;
4987 }
4988
4989
4990 int gdth_release(struct Scsi_Host *shp)
4991 {
4992     int hanum;
4993     gdth_ha_str *ha;
4994
4995     TRACE2(("gdth_release()\n"));
4996     if (NUMDATA(shp)->busnum == 0) {
4997         hanum = NUMDATA(shp)->hanum;
4998         ha    = HADATA(gdth_ctr_tab[hanum]);
4999 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5000         if (ha->sdev) {
5001             scsi_free_host_dev(ha->sdev);
5002             ha->sdev = NULL;
5003         }
5004 #endif
5005         gdth_flush(hanum);
5006
5007         if (shp->irq) {
5008             free_irq(shp->irq,ha);
5009         }
5010 #ifndef __ia64__
5011         if (shp->dma_channel != 0xff) {
5012             free_dma(shp->dma_channel);
5013         }
5014 #endif
5015 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5016 #ifdef INT_COAL
5017         if (ha->coal_stat)
5018             pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
5019                                 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
5020 #endif
5021         if (ha->pscratch)
5022             pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5023                                 ha->pscratch, ha->scratch_phys);
5024         if (ha->pmsg)
5025             pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5026                                 ha->pmsg, ha->msg_phys);
5027         if (ha->ccb_phys)
5028             pci_unmap_single(ha->pdev,ha->ccb_phys,
5029                              sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
5030 #else
5031 #ifdef INT_COAL
5032         if (ha->coal_stat)
5033             scsi_init_free((void *)ha->coal_stat,
5034                            sizeof(gdth_coal_status) * MAXOFFSETS);
5035 #endif
5036         if (ha->pscratch)
5037             scsi_init_free((void *)ha->pscratch, GDTH_SCRATCH);
5038         if (ha->pmsg)
5039             scsi_init_free((void *)ha->pmsg, sizeof(gdth_msg_str));
5040 #endif
5041         gdth_ctr_released++;
5042         TRACE2(("gdth_release(): HA %d of %d\n",
5043                 gdth_ctr_released, gdth_ctr_count));
5044
5045         if (gdth_ctr_released == gdth_ctr_count) {
5046 #ifdef GDTH_STATISTICS
5047             del_timer(&gdth_timer);
5048 #endif
5049             unregister_chrdev(major,"gdth");
5050             unregister_reboot_notifier(&gdth_notifier);
5051         }
5052     }
5053
5054     scsi_unregister(shp);
5055     return 0;
5056 }
5057
5058
5059 static const char *gdth_ctr_name(int hanum)
5060 {
5061     gdth_ha_str *ha;
5062
5063     TRACE2(("gdth_ctr_name()\n"));
5064
5065     ha    = HADATA(gdth_ctr_tab[hanum]);
5066
5067     if (ha->type == GDT_EISA) {
5068         switch (ha->stype) {
5069           case GDT3_ID:
5070             return("GDT3000/3020");
5071           case GDT3A_ID:
5072             return("GDT3000A/3020A/3050A");
5073           case GDT3B_ID:
5074             return("GDT3000B/3010A");
5075         }
5076     } else if (ha->type == GDT_ISA) {
5077         return("GDT2000/2020");
5078     } else if (ha->type == GDT_PCI) {
5079         switch (ha->stype) {
5080           case PCI_DEVICE_ID_VORTEX_GDT60x0:
5081             return("GDT6000/6020/6050");
5082           case PCI_DEVICE_ID_VORTEX_GDT6000B:
5083             return("GDT6000B/6010");
5084         }
5085     }
5086     /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
5087
5088     return("");
5089 }
5090
5091 const char *gdth_info(struct Scsi_Host *shp)
5092 {
5093     int hanum;
5094     gdth_ha_str *ha;
5095
5096     TRACE2(("gdth_info()\n"));
5097     hanum = NUMDATA(shp)->hanum;
5098     ha    = HADATA(gdth_ctr_tab[hanum]);
5099
5100     return ((const char *)ha->binfo.type_string);
5101 }
5102
5103 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)
5104 /* old error handling */
5105 int gdth_abort(Scsi_Cmnd *scp)
5106 {
5107     TRACE2(("gdth_abort() reason %d\n",scp->abort_reason));
5108     return SCSI_ABORT_SNOOZE;
5109 }
5110
5111 int gdth_reset(Scsi_Cmnd *scp, unsigned int reset_flags)
5112 {
5113     TRACE2(("gdth_reset()\n"));
5114     return SCSI_RESET_PUNT;
5115 }
5116 #endif
5117
5118 /* new error handling */
5119 int gdth_eh_abort(Scsi_Cmnd *scp)
5120 {
5121     TRACE2(("gdth_eh_abort()\n"));
5122     return FAILED;
5123 }
5124
5125 int gdth_eh_device_reset(Scsi_Cmnd *scp)
5126 {
5127     TRACE2(("gdth_eh_device_reset()\n"));
5128     return FAILED;
5129 }
5130
5131 int gdth_eh_bus_reset(Scsi_Cmnd *scp)
5132 {
5133     int i, hanum;
5134     gdth_ha_str *ha;
5135     ulong flags;
5136     Scsi_Cmnd *cmnd;
5137     unchar b;
5138
5139     TRACE2(("gdth_eh_bus_reset()\n"));
5140 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5141     hanum = NUMDATA(scp->device->host)->hanum;
5142     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
5143 #else
5144     hanum = NUMDATA(scp->host)->hanum;
5145     b = virt_ctr ? NUMDATA(scp->host)->busnum : scp->channel;
5146 #endif
5147     ha    = HADATA(gdth_ctr_tab[hanum]);
5148
5149     /* clear command tab */
5150     GDTH_LOCK_HA(ha, flags);
5151     for (i = 0; i < GDTH_MAXCMDS; ++i) {
5152         cmnd = ha->cmd_tab[i].cmnd;
5153 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5154         if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
5155 #else
5156         if (!SPECIAL_SCP(cmnd) && cmnd->channel == b)
5157 #endif
5158             ha->cmd_tab[i].cmnd = UNUSED_CMND;
5159     }
5160     GDTH_UNLOCK_HA(ha, flags);
5161
5162     if (b == ha->virt_bus) {
5163         /* host drives */
5164         for (i = 0; i < MAX_HDRIVES; ++i) {
5165             if (ha->hdr[i].present) {
5166                 GDTH_LOCK_HA(ha, flags);
5167                 gdth_polling = TRUE;
5168                 while (gdth_test_busy(hanum))
5169                     gdth_delay(0);
5170                 if (gdth_internal_cmd(hanum, CACHESERVICE,
5171                                       GDT_CLUST_RESET, i, 0, 0))
5172                     ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
5173                 gdth_polling = FALSE;
5174                 GDTH_UNLOCK_HA(ha, flags);
5175             }
5176         }
5177     } else {
5178         /* raw devices */
5179         GDTH_LOCK_HA(ha, flags);
5180         for (i = 0; i < MAXID; ++i)
5181             ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
5182         gdth_polling = TRUE;
5183         while (gdth_test_busy(hanum))
5184             gdth_delay(0);
5185         gdth_internal_cmd(hanum, SCSIRAWSERVICE, GDT_RESET_BUS,
5186                           BUS_L2P(ha,b), 0, 0);
5187         gdth_polling = FALSE;
5188         GDTH_UNLOCK_HA(ha, flags);
5189     }
5190     return SUCCESS;
5191 }
5192
5193 int gdth_eh_host_reset(Scsi_Cmnd *scp)
5194 {
5195     TRACE2(("gdth_eh_host_reset()\n"));
5196     return FAILED;
5197 }
5198
5199
5200 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5201 int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
5202 #else
5203 int gdth_bios_param(Disk *disk,kdev_t dev,int *ip)
5204 #endif
5205 {
5206     unchar b, t;
5207     int hanum;
5208     gdth_ha_str *ha;
5209     struct scsi_device *sd;
5210     unsigned capacity;
5211
5212 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5213     sd = sdev;
5214     capacity = cap;
5215 #else
5216     sd = disk->device;
5217     capacity = disk->capacity;
5218 #endif
5219     hanum = NUMDATA(sd->host)->hanum;
5220     b = virt_ctr ? NUMDATA(sd->host)->busnum : sd->channel;
5221     t = sd->id;
5222     TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", hanum, b, t));
5223     ha = HADATA(gdth_ctr_tab[hanum]);
5224
5225     if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
5226         /* raw device or host drive without mapping information */
5227         TRACE2(("Evaluate mapping\n"));
5228         gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
5229     } else {
5230         ip[0] = ha->hdr[t].heads;
5231         ip[1] = ha->hdr[t].secs;
5232         ip[2] = capacity / ip[0] / ip[1];
5233     }
5234
5235     TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
5236             ip[0],ip[1],ip[2]));
5237     return 0;
5238 }
5239
5240
5241 int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *))
5242 {
5243     int hanum;
5244     int priority;
5245
5246     TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
5247
5248     scp->scsi_done = (void *)done;
5249     scp->SCp.have_data_in = 1;
5250     scp->SCp.phase = -1;
5251     scp->SCp.sent_command = -1;
5252     scp->SCp.Status = GDTH_MAP_NONE;
5253     scp->SCp.buffer = (struct scatterlist *)NULL;
5254 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5255     hanum = NUMDATA(scp->device->host)->hanum;
5256 #else
5257     hanum = NUMDATA(scp->host)->hanum;
5258 #endif
5259 #ifdef GDTH_STATISTICS
5260     ++act_ios;
5261 #endif
5262
5263     priority = DEFAULT_PRI;
5264     if (scp->done == gdth_scsi_done)
5265         priority = scp->SCp.this_residual;
5266     gdth_update_timeout(hanum, scp, scp->timeout_per_command * 6);
5267     gdth_putq( hanum, scp, priority );
5268     gdth_next( hanum );
5269     return 0;
5270 }
5271
5272
5273 static int gdth_open(struct inode *inode, struct file *filep)
5274 {
5275 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5276     gdth_ha_str *ha;
5277     int i;
5278
5279     for (i = 0; i < gdth_ctr_count; i++) {
5280         ha = HADATA(gdth_ctr_tab[i]);
5281         if (!ha->sdev)
5282             ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]);
5283     }
5284 #endif
5285
5286     TRACE(("gdth_open()\n"));
5287     return 0;
5288 }
5289
5290 static int gdth_close(struct inode *inode, struct file *filep)
5291 {
5292     TRACE(("gdth_close()\n"));
5293     return 0;
5294 }
5295
5296 static int ioc_event(void __user *arg)
5297 {
5298     gdth_ioctl_event evt;
5299     gdth_ha_str *ha;
5300     ulong flags;
5301
5302     if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) ||
5303         evt.ionode >= gdth_ctr_count)
5304         return -EFAULT;
5305     ha = HADATA(gdth_ctr_tab[evt.ionode]);
5306
5307     if (evt.erase == 0xff) {
5308         if (evt.event.event_source == ES_TEST)
5309             evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
5310         else if (evt.event.event_source == ES_DRIVER)
5311             evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
5312         else if (evt.event.event_source == ES_SYNC)
5313             evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
5314         else
5315             evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
5316         GDTH_LOCK_HA(ha, flags);
5317         gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
5318                          &evt.event.event_data);
5319         GDTH_UNLOCK_HA(ha, flags);
5320     } else if (evt.erase == 0xfe) {
5321         gdth_clear_events();
5322     } else if (evt.erase == 0) {
5323         evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
5324     } else {
5325         gdth_readapp_event(ha, evt.erase, &evt.event);
5326     }
5327     if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
5328         return -EFAULT;
5329     return 0;
5330 }
5331
5332 static int ioc_lockdrv(void __user *arg)
5333 {
5334     gdth_ioctl_lockdrv ldrv;
5335     unchar i, j;
5336     ulong flags;
5337     gdth_ha_str *ha;
5338
5339     if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) ||
5340         ldrv.ionode >= gdth_ctr_count)
5341         return -EFAULT;
5342     ha = HADATA(gdth_ctr_tab[ldrv.ionode]);
5343
5344     for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
5345         j = ldrv.drives[i];
5346         if (j >= MAX_HDRIVES || !ha->hdr[j].present)
5347             continue;
5348         if (ldrv.lock) {
5349             GDTH_LOCK_HA(ha, flags);
5350             ha->hdr[j].lock = 1;
5351             GDTH_UNLOCK_HA(ha, flags);
5352             gdth_wait_completion(ldrv.ionode, ha->bus_cnt, j);
5353             gdth_stop_timeout(ldrv.ionode, ha->bus_cnt, j);
5354         } else {
5355             GDTH_LOCK_HA(ha, flags);
5356             ha->hdr[j].lock = 0;
5357             GDTH_UNLOCK_HA(ha, flags);
5358             gdth_start_timeout(ldrv.ionode, ha->bus_cnt, j);
5359             gdth_next(ldrv.ionode);
5360         }
5361     }
5362     return 0;
5363 }
5364
5365 static int ioc_resetdrv(void __user *arg, char *cmnd)
5366 {
5367     gdth_ioctl_reset res;
5368     gdth_cmd_str cmd;
5369     int hanum;
5370     gdth_ha_str *ha;
5371 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5372         Scsi_Request *srp;
5373 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5374         Scsi_Cmnd *scp;
5375 #else
5376         Scsi_Cmnd scp;
5377 #endif
5378
5379     if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
5380         res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
5381         return -EFAULT;
5382     hanum = res.ionode;
5383     ha = HADATA(gdth_ctr_tab[hanum]);
5384
5385     if (!ha->hdr[res.number].present)
5386         return 0;
5387     memset(&cmd, 0, sizeof(gdth_cmd_str));
5388     cmd.Service = CACHESERVICE;
5389     cmd.OpCode = GDT_CLUST_RESET;
5390     if (ha->cache_feat & GDT_64BIT)
5391         cmd.u.cache64.DeviceNo = res.number;
5392     else
5393         cmd.u.cache.DeviceNo = res.number;
5394 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5395     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5396     if (!srp)
5397         return -ENOMEM;
5398     srp->sr_cmd_len = 12;
5399     srp->sr_use_sg = 0;
5400     gdth_do_req(srp, &cmd, cmnd, 30);
5401     res.status = (ushort)srp->sr_command->SCp.Status;
5402     scsi_release_request(srp);
5403 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5404     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5405     if (!scp)
5406         return -ENOMEM;
5407     scp->cmd_len = 12;
5408     scp->use_sg = 0;
5409     gdth_do_cmd(scp, &cmd, cmnd, 30);
5410     res.status = (ushort)scp->SCp.Status;
5411     scsi_release_command(scp);
5412 #else
5413     memset(&ha->sdev,0,sizeof(Scsi_Device));
5414     memset(&scp, 0,sizeof(Scsi_Cmnd));
5415     ha->sdev.host = scp.host = gdth_ctr_tab[hanum];
5416     ha->sdev.id = scp.target = ha->sdev.host->this_id;
5417     scp.device = &ha->sdev;
5418     gdth_do_cmd(&scp, &cmd, cmnd, 30);
5419     res.status = (ushort)scp.SCp.Status;
5420 #endif
5421     if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
5422         return -EFAULT;
5423     return 0;
5424 }
5425
5426 static int ioc_general(void __user *arg, char *cmnd)
5427 {
5428     gdth_ioctl_general gen;
5429     char *buf = NULL;
5430     ulong64 paddr;
5431     int hanum;
5432         gdth_ha_str *ha;
5433 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5434         Scsi_Request *srp;
5435 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5436         Scsi_Cmnd *scp;
5437 #else
5438         Scsi_Cmnd scp;
5439 #endif
5440
5441     if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
5442         gen.ionode >= gdth_ctr_count)
5443         return -EFAULT;
5444     hanum = gen.ionode;
5445     ha = HADATA(gdth_ctr_tab[hanum]);
5446     if (gen.data_len + gen.sense_len != 0) {
5447         if (!(buf = gdth_ioctl_alloc(hanum, gen.data_len + gen.sense_len,
5448                                      FALSE, &paddr)))
5449             return -EFAULT;
5450         if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
5451                            gen.data_len + gen.sense_len)) {
5452             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5453             return -EFAULT;
5454         }
5455
5456         if (gen.command.OpCode == GDT_IOCTL) {
5457             gen.command.u.ioctl.p_param = paddr;
5458         } else if (gen.command.Service == CACHESERVICE) {
5459             if (ha->cache_feat & GDT_64BIT) {
5460                 /* copy elements from 32-bit IOCTL structure */
5461                 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
5462                 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
5463                 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
5464                 /* addresses */
5465                 if (ha->cache_feat & SCATTER_GATHER) {
5466                     gen.command.u.cache64.DestAddr = (ulong64)-1;
5467                     gen.command.u.cache64.sg_canz = 1;
5468                     gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
5469                     gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
5470                     gen.command.u.cache64.sg_lst[1].sg_len = 0;
5471                 } else {
5472                     gen.command.u.cache64.DestAddr = paddr;
5473                     gen.command.u.cache64.sg_canz = 0;
5474                 }
5475             } else {
5476                 if (ha->cache_feat & SCATTER_GATHER) {
5477                     gen.command.u.cache.DestAddr = 0xffffffff;
5478                     gen.command.u.cache.sg_canz = 1;
5479                     gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
5480                     gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
5481                     gen.command.u.cache.sg_lst[1].sg_len = 0;
5482                 } else {
5483                     gen.command.u.cache.DestAddr = paddr;
5484                     gen.command.u.cache.sg_canz = 0;
5485                 }
5486             }
5487         } else if (gen.command.Service == SCSIRAWSERVICE) {
5488             if (ha->raw_feat & GDT_64BIT) {
5489                 /* copy elements from 32-bit IOCTL structure */
5490                 char cmd[16];
5491                 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
5492                 gen.command.u.raw64.bus = gen.command.u.raw.bus;
5493                 gen.command.u.raw64.lun = gen.command.u.raw.lun;
5494                 gen.command.u.raw64.target = gen.command.u.raw.target;
5495                 memcpy(cmd, gen.command.u.raw.cmd, 16);
5496                 memcpy(gen.command.u.raw64.cmd, cmd, 16);
5497                 gen.command.u.raw64.clen = gen.command.u.raw.clen;
5498                 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
5499                 gen.command.u.raw64.direction = gen.command.u.raw.direction;
5500                 /* addresses */
5501                 if (ha->raw_feat & SCATTER_GATHER) {
5502                     gen.command.u.raw64.sdata = (ulong64)-1;
5503                     gen.command.u.raw64.sg_ranz = 1;
5504                     gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
5505                     gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
5506                     gen.command.u.raw64.sg_lst[1].sg_len = 0;
5507                 } else {
5508                     gen.command.u.raw64.sdata = paddr;
5509                     gen.command.u.raw64.sg_ranz = 0;
5510                 }
5511                 gen.command.u.raw64.sense_data = paddr + gen.data_len;
5512             } else {
5513                 if (ha->raw_feat & SCATTER_GATHER) {
5514                     gen.command.u.raw.sdata = 0xffffffff;
5515                     gen.command.u.raw.sg_ranz = 1;
5516                     gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
5517                     gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
5518                     gen.command.u.raw.sg_lst[1].sg_len = 0;
5519                 } else {
5520                     gen.command.u.raw.sdata = paddr;
5521                     gen.command.u.raw.sg_ranz = 0;
5522                 }
5523                 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
5524             }
5525         } else {
5526             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5527             return -EFAULT;
5528         }
5529     }
5530
5531 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5532     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5533     if (!srp)
5534         return -ENOMEM;
5535     srp->sr_cmd_len = 12;
5536     srp->sr_use_sg = 0;
5537     gdth_do_req(srp, &gen.command, cmnd, gen.timeout);
5538     gen.status = srp->sr_command->SCp.Status;
5539     gen.info = srp->sr_command->SCp.Message;
5540     scsi_release_request(srp);
5541 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5542     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5543     if (!scp)
5544         return -ENOMEM;
5545     scp->cmd_len = 12;
5546     scp->use_sg = 0;
5547     gdth_do_cmd(scp, &gen.command, cmnd, gen.timeout);
5548     gen.status = scp->SCp.Status;
5549     gen.info = scp->SCp.Message;
5550     scsi_release_command(scp);
5551 #else
5552     memset(&ha->sdev,0,sizeof(Scsi_Device));
5553     memset(&scp, 0,sizeof(Scsi_Cmnd));
5554     ha->sdev.host = scp.host = gdth_ctr_tab[hanum];
5555     ha->sdev.id = scp.target = ha->sdev.host->this_id;
5556     scp.device = &ha->sdev;
5557     gdth_do_cmd(&scp, &gen.command, cmnd, gen.timeout);
5558     gen.status = scp.SCp.Status;
5559     gen.info = scp.SCp.Message;
5560 #endif
5561
5562     if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
5563                      gen.data_len + gen.sense_len)) {
5564         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5565         return -EFAULT;
5566     }
5567     if (copy_to_user(arg, &gen,
5568         sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
5569         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5570         return -EFAULT;
5571     }
5572     gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5573     return 0;
5574 }
5575
5576 static int ioc_hdrlist(void __user *arg, char *cmnd)
5577 {
5578     gdth_ioctl_rescan rsc;
5579     gdth_cmd_str cmd;
5580     gdth_ha_str *ha;
5581     unchar i;
5582     int hanum;
5583 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5584     Scsi_Request *srp;
5585 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5586     Scsi_Cmnd *scp;
5587 #else
5588     Scsi_Cmnd scp;
5589 #endif
5590
5591     if (copy_from_user(&rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5592         rsc.ionode >= gdth_ctr_count)
5593         return -EFAULT;
5594     hanum = rsc.ionode;
5595     ha = HADATA(gdth_ctr_tab[hanum]);
5596     memset(&cmd, 0, sizeof(gdth_cmd_str));
5597
5598 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5599     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5600     if (!srp)
5601         return -ENOMEM;
5602     srp->sr_cmd_len = 12;
5603     srp->sr_use_sg = 0;
5604 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5605     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5606     if (!scp)
5607         return -ENOMEM;
5608     scp->cmd_len = 12;
5609     scp->use_sg = 0;
5610 #else
5611     memset(&ha->sdev,0,sizeof(Scsi_Device));
5612     memset(&scp, 0,sizeof(Scsi_Cmnd));
5613     ha->sdev.host = scp.host = gdth_ctr_tab[hanum];
5614     ha->sdev.id = scp.target = ha->sdev.host->this_id;
5615     scp.device = &ha->sdev;
5616 #endif
5617
5618     for (i = 0; i < MAX_HDRIVES; ++i) {
5619         if (!ha->hdr[i].present) {
5620             rsc.hdr_list[i].bus = 0xff;
5621             continue;
5622         }
5623         rsc.hdr_list[i].bus = ha->virt_bus;
5624         rsc.hdr_list[i].target = i;
5625         rsc.hdr_list[i].lun = 0;
5626         rsc.hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5627         if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
5628             cmd.Service = CACHESERVICE;
5629             cmd.OpCode = GDT_CLUST_INFO;
5630             if (ha->cache_feat & GDT_64BIT)
5631                 cmd.u.cache64.DeviceNo = i;
5632             else
5633                 cmd.u.cache.DeviceNo = i;
5634 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5635             gdth_do_req(srp, &cmd, cmnd, 30);
5636             if (srp->sr_command->SCp.Status == S_OK)
5637                 rsc.hdr_list[i].cluster_type = srp->sr_command->SCp.Message;
5638 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5639             gdth_do_cmd(scp, &cmd, cmnd, 30);
5640             if (scp->SCp.Status == S_OK)
5641                 rsc.hdr_list[i].cluster_type = scp->SCp.Message;
5642 #else
5643             gdth_do_cmd(&scp, &cmd, cmnd, 30);
5644             if (scp.SCp.Status == S_OK)
5645                 rsc.hdr_list[i].cluster_type = scp.SCp.Message;
5646 #endif
5647         }
5648     }
5649 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5650     scsi_release_request(srp);
5651 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5652     scsi_release_command(scp);
5653 #endif
5654
5655     if (copy_to_user(arg, &rsc, sizeof(gdth_ioctl_rescan)))
5656         return -EFAULT;
5657     return 0;
5658 }
5659
5660 static int ioc_rescan(void __user *arg, char *cmnd)
5661 {
5662     gdth_ioctl_rescan rsc;
5663     gdth_cmd_str cmd;
5664     ushort i, status, hdr_cnt;
5665     ulong32 info;
5666     int hanum, cyls, hds, secs;
5667     ulong flags;
5668     gdth_ha_str *ha;
5669 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5670     Scsi_Request *srp;
5671 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5672     Scsi_Cmnd *scp;
5673 #else
5674     Scsi_Cmnd scp;
5675 #endif
5676
5677     if (copy_from_user(&rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5678         rsc.ionode >= gdth_ctr_count)
5679         return -EFAULT;
5680     hanum = rsc.ionode;
5681     ha = HADATA(gdth_ctr_tab[hanum]);
5682     memset(&cmd, 0, sizeof(gdth_cmd_str));
5683
5684 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5685     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5686     if (!srp)
5687         return -ENOMEM;
5688     srp->sr_cmd_len = 12;
5689     srp->sr_use_sg = 0;
5690 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5691     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5692     if (!scp)
5693         return -ENOMEM;
5694     scp->cmd_len = 12;
5695     scp->use_sg = 0;
5696 #else
5697     memset(&ha->sdev,0,sizeof(Scsi_Device));
5698     memset(&scp, 0,sizeof(Scsi_Cmnd));
5699     ha->sdev.host = scp.host = gdth_ctr_tab[hanum];
5700     ha->sdev.id = scp.target = ha->sdev.host->this_id;
5701     scp.device = &ha->sdev;
5702 #endif
5703
5704     if (rsc.flag == 0) {
5705         /* old method: re-init. cache service */
5706         cmd.Service = CACHESERVICE;
5707         if (ha->cache_feat & GDT_64BIT) {
5708             cmd.OpCode = GDT_X_INIT_HOST;
5709             cmd.u.cache64.DeviceNo = LINUX_OS;
5710         } else {
5711             cmd.OpCode = GDT_INIT;
5712             cmd.u.cache.DeviceNo = LINUX_OS;
5713         }
5714 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5715         gdth_do_req(srp, &cmd, cmnd, 30);
5716         status = (ushort)srp->sr_command->SCp.Status;
5717         info = (ulong32)srp->sr_command->SCp.Message;
5718 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5719         gdth_do_cmd(scp, &cmd, cmnd, 30);
5720         status = (ushort)scp->SCp.Status;
5721         info = (ulong32)scp->SCp.Message;
5722 #else
5723         gdth_do_cmd(&scp, &cmd, cmnd, 30);
5724         status = (ushort)scp.SCp.Status;
5725         info = (ulong32)scp.SCp.Message;
5726 #endif
5727         i = 0;
5728         hdr_cnt = (status == S_OK ? (ushort)info : 0);
5729     } else {
5730         i = rsc.hdr_no;
5731         hdr_cnt = i + 1;
5732     }
5733     for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
5734         cmd.Service = CACHESERVICE;
5735         cmd.OpCode = GDT_INFO;
5736         if (ha->cache_feat & GDT_64BIT)
5737             cmd.u.cache64.DeviceNo = i;
5738         else
5739             cmd.u.cache.DeviceNo = i;
5740 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5741         gdth_do_req(srp, &cmd, cmnd, 30);
5742         status = (ushort)srp->sr_command->SCp.Status;
5743         info = (ulong32)srp->sr_command->SCp.Message;
5744 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5745         gdth_do_cmd(scp, &cmd, cmnd, 30);
5746         status = (ushort)scp->SCp.Status;
5747         info = (ulong32)scp->SCp.Message;
5748 #else
5749         gdth_do_cmd(&scp, &cmd, cmnd, 30);
5750         status = (ushort)scp.SCp.Status;
5751         info = (ulong32)scp.SCp.Message;
5752 #endif
5753         GDTH_LOCK_HA(ha, flags);
5754         rsc.hdr_list[i].bus = ha->virt_bus;
5755         rsc.hdr_list[i].target = i;
5756         rsc.hdr_list[i].lun = 0;
5757         if (status != S_OK) {
5758             ha->hdr[i].present = FALSE;
5759         } else {
5760             ha->hdr[i].present = TRUE;
5761             ha->hdr[i].size = info;
5762             /* evaluate mapping */
5763             ha->hdr[i].size &= ~SECS32;
5764             gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
5765             ha->hdr[i].heads = hds;
5766             ha->hdr[i].secs = secs;
5767             /* round size */
5768             ha->hdr[i].size = cyls * hds * secs;
5769         }
5770         GDTH_UNLOCK_HA(ha, flags);
5771         if (status != S_OK)
5772             continue;
5773
5774         /* extended info, if GDT_64BIT, for drives > 2 TB */
5775         /* but we need ha->info2, not yet stored in scp->SCp */
5776
5777         /* devtype, cluster info, R/W attribs */
5778         cmd.Service = CACHESERVICE;
5779         cmd.OpCode = GDT_DEVTYPE;
5780         if (ha->cache_feat & GDT_64BIT)
5781             cmd.u.cache64.DeviceNo = i;
5782         else
5783             cmd.u.cache.DeviceNo = i;
5784 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5785         gdth_do_req(srp, &cmd, cmnd, 30);
5786         status = (ushort)srp->sr_command->SCp.Status;
5787         info = (ulong32)srp->sr_command->SCp.Message;
5788 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5789         gdth_do_cmd(scp, &cmd, cmnd, 30);
5790         status = (ushort)scp->SCp.Status;
5791         info = (ulong32)scp->SCp.Message;
5792 #else
5793         gdth_do_cmd(&scp, &cmd, cmnd, 30);
5794         status = (ushort)scp.SCp.Status;
5795         info = (ulong32)scp.SCp.Message;
5796 #endif
5797         GDTH_LOCK_HA(ha, flags);
5798         ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
5799         GDTH_UNLOCK_HA(ha, flags);
5800
5801         cmd.Service = CACHESERVICE;
5802         cmd.OpCode = GDT_CLUST_INFO;
5803         if (ha->cache_feat & GDT_64BIT)
5804             cmd.u.cache64.DeviceNo = i;
5805         else
5806             cmd.u.cache.DeviceNo = i;
5807 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5808         gdth_do_req(srp, &cmd, cmnd, 30);
5809         status = (ushort)srp->sr_command->SCp.Status;
5810         info = (ulong32)srp->sr_command->SCp.Message;
5811 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5812         gdth_do_cmd(scp, &cmd, cmnd, 30);
5813         status = (ushort)scp->SCp.Status;
5814         info = (ulong32)scp->SCp.Message;
5815 #else
5816         gdth_do_cmd(&scp, &cmd, cmnd, 30);
5817         status = (ushort)scp.SCp.Status;
5818         info = (ulong32)scp.SCp.Message;
5819 #endif
5820         GDTH_LOCK_HA(ha, flags);
5821         ha->hdr[i].cluster_type =
5822             ((status == S_OK && !shared_access) ? (ushort)info : 0);
5823         GDTH_UNLOCK_HA(ha, flags);
5824         rsc.hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5825
5826         cmd.Service = CACHESERVICE;
5827         cmd.OpCode = GDT_RW_ATTRIBS;
5828         if (ha->cache_feat & GDT_64BIT)
5829             cmd.u.cache64.DeviceNo = i;
5830         else
5831             cmd.u.cache.DeviceNo = i;
5832 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5833         gdth_do_req(srp, &cmd, cmnd, 30);
5834         status = (ushort)srp->sr_command->SCp.Status;
5835         info = (ulong32)srp->sr_command->SCp.Message;
5836 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5837         gdth_do_cmd(scp, &cmd, cmnd, 30);
5838         status = (ushort)scp->SCp.Status;
5839         info = (ulong32)scp->SCp.Message;
5840 #else
5841         gdth_do_cmd(&scp, &cmd, cmnd, 30);
5842         status = (ushort)scp.SCp.Status;
5843         info = (ulong32)scp.SCp.Message;
5844 #endif
5845         GDTH_LOCK_HA(ha, flags);
5846         ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
5847         GDTH_UNLOCK_HA(ha, flags);
5848     }
5849 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5850     scsi_release_request(srp);
5851 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5852     scsi_release_command(scp);
5853 #endif
5854
5855     if (copy_to_user(arg, &rsc, sizeof(gdth_ioctl_rescan)))
5856         return -EFAULT;
5857     return 0;
5858 }
5859
5860 static int gdth_ioctl(struct inode *inode, struct file *filep,
5861                       unsigned int cmd, unsigned long arg)
5862 {
5863     gdth_ha_str *ha;
5864 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5865     Scsi_Cmnd *scp;
5866 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5867     Scsi_Cmnd *scp;
5868 #else
5869     Scsi_Cmnd scp;
5870 #endif
5871     ulong flags;
5872     char cmnd[MAX_COMMAND_SIZE];
5873     void __user *argp = (void __user *)arg;
5874
5875     memset(cmnd, 0xff, 12);
5876
5877     TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
5878
5879     switch (cmd) {
5880       case GDTIOCTL_CTRCNT:
5881       {
5882         int cnt = gdth_ctr_count;
5883         if (put_user(cnt, (int __user *)argp))
5884                 return -EFAULT;
5885         break;
5886       }
5887
5888       case GDTIOCTL_DRVERS:
5889       {
5890         int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
5891         if (put_user(ver, (int __user *)argp))
5892                 return -EFAULT;
5893         break;
5894       }
5895
5896       case GDTIOCTL_OSVERS:
5897       {
5898         gdth_ioctl_osvers osv;
5899
5900         osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
5901         osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
5902         osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
5903         if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
5904                 return -EFAULT;
5905         break;
5906       }
5907
5908       case GDTIOCTL_CTRTYPE:
5909       {
5910         gdth_ioctl_ctrtype ctrt;
5911
5912         if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
5913             ctrt.ionode >= gdth_ctr_count)
5914             return -EFAULT;
5915         ha = HADATA(gdth_ctr_tab[ctrt.ionode]);
5916         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
5917             ctrt.type = (unchar)((ha->stype>>20) - 0x10);
5918         } else {
5919             if (ha->type != GDT_PCIMPR) {
5920                 ctrt.type = (unchar)((ha->stype<<4) + 6);
5921             } else {
5922                 ctrt.type =
5923                     (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
5924                 if (ha->stype >= 0x300)
5925                     ctrt.ext_type = 0x6000 | ha->subdevice_id;
5926                 else
5927                     ctrt.ext_type = 0x6000 | ha->stype;
5928             }
5929             ctrt.device_id = ha->stype;
5930             ctrt.sub_device_id = ha->subdevice_id;
5931         }
5932         ctrt.info = ha->brd_phys;
5933         ctrt.oem_id = ha->oem_id;
5934         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
5935             return -EFAULT;
5936         break;
5937       }
5938
5939       case GDTIOCTL_GENERAL:
5940         return ioc_general(argp, cmnd);
5941
5942       case GDTIOCTL_EVENT:
5943         return ioc_event(argp);
5944
5945       case GDTIOCTL_LOCKDRV:
5946         return ioc_lockdrv(argp);
5947
5948       case GDTIOCTL_LOCKCHN:
5949       {
5950         gdth_ioctl_lockchn lchn;
5951         unchar i, j;
5952
5953         if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
5954             lchn.ionode >= gdth_ctr_count)
5955             return -EFAULT;
5956         ha = HADATA(gdth_ctr_tab[lchn.ionode]);
5957
5958         i = lchn.channel;
5959         if (i < ha->bus_cnt) {
5960             if (lchn.lock) {
5961                 GDTH_LOCK_HA(ha, flags);
5962                 ha->raw[i].lock = 1;
5963                 GDTH_UNLOCK_HA(ha, flags);
5964                 for (j = 0; j < ha->tid_cnt; ++j) {
5965                     gdth_wait_completion(lchn.ionode, i, j);
5966                     gdth_stop_timeout(lchn.ionode, i, j);
5967                 }
5968             } else {
5969                 GDTH_LOCK_HA(ha, flags);
5970                 ha->raw[i].lock = 0;
5971                 GDTH_UNLOCK_HA(ha, flags);
5972                 for (j = 0; j < ha->tid_cnt; ++j) {
5973                     gdth_start_timeout(lchn.ionode, i, j);
5974                     gdth_next(lchn.ionode);
5975                 }
5976             }
5977         }
5978         break;
5979       }
5980
5981       case GDTIOCTL_RESCAN:
5982         return ioc_rescan(argp, cmnd);
5983
5984       case GDTIOCTL_HDRLIST:
5985         return ioc_hdrlist(argp, cmnd);
5986
5987       case GDTIOCTL_RESET_BUS:
5988       {
5989         gdth_ioctl_reset res;
5990         int hanum, rval;
5991
5992         if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
5993             res.ionode >= gdth_ctr_count)
5994             return -EFAULT;
5995         hanum = res.ionode;
5996         ha = HADATA(gdth_ctr_tab[hanum]);
5997
5998         /* Because we need a Scsi_Cmnd struct., we make a scsi_allocate device also for kernels >=2.6.x */
5999 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6000         scp  = scsi_get_command(ha->sdev, GFP_KERNEL);
6001         if (!scp)
6002             return -ENOMEM;
6003         scp->cmd_len = 12;
6004         scp->use_sg = 0;
6005         scp->device->channel = virt_ctr ? 0 : res.number;
6006         rval = gdth_eh_bus_reset(scp);
6007         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
6008         scsi_put_command(scp);
6009 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6010         scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
6011         if (!scp)
6012             return -ENOMEM;
6013         scp->cmd_len = 12;
6014         scp->use_sg = 0;
6015         scp->channel = virt_ctr ? 0 : res.number;
6016         rval = gdth_eh_bus_reset(scp);
6017         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
6018         scsi_release_command(scp);
6019 #else
6020         memset(&ha->sdev,0,sizeof(Scsi_Device));
6021         memset(&scp, 0,sizeof(Scsi_Cmnd));
6022         ha->sdev.host = scp.host = gdth_ctr_tab[hanum];
6023         ha->sdev.id = scp.target = ha->sdev.host->this_id;
6024         scp.device = &ha->sdev;
6025         scp.channel = virt_ctr ? 0 : res.number;
6026         rval = gdth_eh_bus_reset(&scp);
6027         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
6028 #endif
6029         if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
6030             return -EFAULT;
6031         break;
6032       }
6033
6034       case GDTIOCTL_RESET_DRV:
6035         return ioc_resetdrv(argp, cmnd);
6036
6037       default:
6038         break;
6039     }
6040     return 0;
6041 }
6042
6043
6044 /* flush routine */
6045 static void gdth_flush(int hanum)
6046 {
6047     int             i;
6048     gdth_ha_str     *ha;
6049     gdth_cmd_str    gdtcmd;
6050 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6051     Scsi_Request    *srp;
6052     Scsi_Device     *sdev;
6053 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6054     Scsi_Cmnd       *scp;
6055     Scsi_Device     *sdev;
6056 #else
6057     Scsi_Cmnd       scp;
6058     Scsi_Device     sdev;
6059 #endif
6060     char            cmnd[MAX_COMMAND_SIZE];
6061     memset(cmnd, 0xff, MAX_COMMAND_SIZE);
6062
6063     TRACE2(("gdth_flush() hanum %d\n",hanum));
6064     ha = HADATA(gdth_ctr_tab[hanum]);
6065
6066 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6067     sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
6068     srp  = scsi_allocate_request(sdev, GFP_KERNEL);
6069     if (!srp)
6070         return;
6071     srp->sr_cmd_len = 12;
6072     srp->sr_use_sg = 0;
6073 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6074     sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
6075     scp  = scsi_allocate_device(sdev, 1, FALSE);
6076     if (!scp)
6077         return;
6078     scp->cmd_len = 12;
6079     scp->use_sg = 0;
6080 #else
6081     memset(&sdev,0,sizeof(Scsi_Device));
6082     memset(&scp, 0,sizeof(Scsi_Cmnd));
6083     sdev.host = scp.host = gdth_ctr_tab[hanum];
6084     sdev.id = scp.target = sdev.host->this_id;
6085     scp.device = &sdev;
6086 #endif
6087
6088     for (i = 0; i < MAX_HDRIVES; ++i) {
6089         if (ha->hdr[i].present) {
6090             gdtcmd.BoardNode = LOCALBOARD;
6091             gdtcmd.Service = CACHESERVICE;
6092             gdtcmd.OpCode = GDT_FLUSH;
6093             if (ha->cache_feat & GDT_64BIT) {
6094                 gdtcmd.u.cache64.DeviceNo = i;
6095                 gdtcmd.u.cache64.BlockNo = 1;
6096                 gdtcmd.u.cache64.sg_canz = 0;
6097             } else {
6098                 gdtcmd.u.cache.DeviceNo = i;
6099                 gdtcmd.u.cache.BlockNo = 1;
6100                 gdtcmd.u.cache.sg_canz = 0;
6101             }
6102             TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
6103 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6104             gdth_do_req(srp, &gdtcmd, cmnd, 30);
6105 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6106             gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
6107 #else
6108             gdth_do_cmd(&scp, &gdtcmd, cmnd, 30);
6109 #endif
6110         }
6111     }
6112 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6113     scsi_release_request(srp);
6114     scsi_free_host_dev(sdev);
6115 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6116     scsi_release_command(scp);
6117     scsi_free_host_dev(sdev);
6118 #endif
6119 }
6120
6121 /* shutdown routine */
6122 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
6123 {
6124     int             hanum;
6125 #ifndef __alpha__
6126     gdth_cmd_str    gdtcmd;
6127 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6128     Scsi_Request    *srp;
6129     Scsi_Device     *sdev;
6130 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6131     Scsi_Cmnd       *scp;
6132     Scsi_Device     *sdev;
6133 #else
6134     Scsi_Cmnd       scp;
6135     Scsi_Device     sdev;
6136 #endif
6137     char            cmnd[MAX_COMMAND_SIZE];
6138 #endif
6139
6140     TRACE2(("gdth_halt() event %d\n",(int)event));
6141     if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
6142         return NOTIFY_DONE;
6143
6144     printk("GDT-HA: Flushing all host drives .. ");
6145     for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
6146         gdth_flush(hanum);
6147
6148 #ifndef __alpha__
6149         /* controller reset */
6150         memset(cmnd, 0xff, MAX_COMMAND_SIZE);
6151         gdtcmd.BoardNode = LOCALBOARD;
6152         gdtcmd.Service = CACHESERVICE;
6153         gdtcmd.OpCode = GDT_RESET;
6154         TRACE2(("gdth_halt(): reset controller %d\n", hanum));
6155 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
6156         sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
6157         srp  = scsi_allocate_request(sdev, GFP_KERNEL);
6158         if (!srp) {
6159             unregister_reboot_notifier(&gdth_notifier);
6160             return NOTIFY_OK;
6161         }
6162         srp->sr_cmd_len = 12;
6163         srp->sr_use_sg = 0;
6164         gdth_do_req(srp, &gdtcmd, cmnd, 10);
6165         scsi_release_request(srp);
6166         scsi_free_host_dev(sdev);
6167 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6168         sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
6169         scp  = scsi_allocate_device(sdev, 1, FALSE);
6170         if (!scp) {
6171             unregister_reboot_notifier(&gdth_notifier);
6172             return NOTIFY_OK;
6173         }
6174         scp->cmd_len = 12;
6175         scp->use_sg = 0;
6176         gdth_do_cmd(scp, &gdtcmd, cmnd, 10);
6177         scsi_release_command(scp);
6178         scsi_free_host_dev(sdev);
6179 #else
6180         memset(&sdev,0,sizeof(Scsi_Device));
6181         memset(&scp, 0,sizeof(Scsi_Cmnd));
6182         sdev.host = scp.host = gdth_ctr_tab[hanum];
6183         sdev.id = scp.target = sdev.host->this_id;
6184         scp.device = &sdev;
6185         gdth_do_cmd(&scp, &gdtcmd, cmnd, 10);
6186 #endif
6187 #endif
6188     }
6189     printk("Done.\n");
6190
6191 #ifdef GDTH_STATISTICS
6192     del_timer(&gdth_timer);
6193 #endif
6194     unregister_reboot_notifier(&gdth_notifier);
6195     return NOTIFY_OK;
6196 }
6197
6198
6199 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) && !defined(MODULE)
6200
6201 GDTH_INITFUNC(void, gdth_setup(char *str,int *ints))
6202 {
6203     TRACE2(("gdth_setup() str %s ints[0] %d\n",
6204             str ? str:"NULL", ints ? ints[0]:0));
6205     internal_setup(str, ints);
6206 }
6207
6208 #else
6209
6210 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
6211 static Scsi_Host_Template driver_template = {
6212         .proc_name              = "gdth",
6213         .proc_info              = gdth_proc_info,
6214         .name                   = "GDT SCSI Disk Array Controller",
6215         .detect                 = gdth_detect,
6216         .release                = gdth_release,
6217         .info                   = gdth_info,
6218         .queuecommand           = gdth_queuecommand,
6219         .eh_abort_handler       = gdth_eh_abort,
6220         .eh_device_reset_handler = gdth_eh_device_reset,
6221         .eh_bus_reset_handler   = gdth_eh_bus_reset,
6222         .eh_host_reset_handler  = gdth_eh_host_reset,
6223         .bios_param             = gdth_bios_param,
6224         .can_queue              = GDTH_MAXCMDS,
6225         .this_id                = -1,
6226         .sg_tablesize           = GDTH_MAXSG,
6227         .cmd_per_lun            = GDTH_MAXC_P_L,
6228         .unchecked_isa_dma      = 1,
6229         .use_clustering         = ENABLE_CLUSTERING,
6230 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
6231         .use_new_eh_code        = 1,
6232 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
6233         .highmem_io             = 1,
6234 #endif
6235 #endif
6236 };
6237 #else
6238 static Scsi_Host_Template driver_template = GDTH;
6239 #endif
6240
6241 #include "scsi_module.c"
6242 #ifndef MODULE
6243 __setup("gdth=", option_setup);
6244 #endif
6245
6246 #endif