git.oblomov.eu Git - linux-2.6/blob - 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  * struct 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  *                              appropriate 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 #include <linux/dma-mapping.h>
 392 #ifdef GDTH_RTC
 393 #include <linux/mc146818rtc.h>
 394 #endif
 395 #include <linux/reboot.h>
 396
 397 #include <asm/dma.h>
 398 #include <asm/system.h>
 399 #include <asm/io.h>
 400 #include <asm/uaccess.h>
 401 #include <linux/spinlock.h>
 402 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 403 #include <linux/blkdev.h>
 404 #else
 405 #include <linux/blk.h>
 406 #include "sd.h"
 407 #endif
 408
 409 #include "scsi.h"
 410 #include <scsi/scsi_host.h>
 411 #include "gdth.h"
 412 #include "gdth_kcompat.h"
 413
 414 static void gdth_delay(int milliseconds);
 415 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
 416 static irqreturn_t gdth_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 417 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp);
 418 static int gdth_async_event(int hanum);
 419 static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
 420
 421 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority);
 422 static void gdth_next(int hanum);
 423 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b);
 424 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp);
 425 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
 426                                       ushort idx, gdth_evt_data *evt);
 427 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
 428 static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
 429                                gdth_evt_str *estr);
 430 static void gdth_clear_events(void);
 431
 432 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
 433                                     char *buffer,ushort count);
 434 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 435 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
 436
 437 static int gdth_search_eisa(ushort eisa_adr);
 438 static int gdth_search_isa(ulong32 bios_adr);
 439 static int gdth_search_pci(gdth_pci_str *pcistr);
 440 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 441                             ushort vendor, ushort dev);
 442 static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
 443 static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
 444 static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
 445 static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 446
 447 static void gdth_enable_int(int hanum);
 448 static int gdth_get_status(unchar *pIStatus,int irq);
 449 static int gdth_test_busy(int hanum);
 450 static int gdth_get_cmd_index(int hanum);
 451 static void gdth_release_event(int hanum);
 452 static int gdth_wait(int hanum,int index,ulong32 time);
 453 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
 454                              ulong64 p2,ulong64 p3);
 455 static int gdth_search_drives(int hanum);
 456 static int gdth_analyse_hdrive(int hanum, ushort hdrive);
 457
 458 static const char *gdth_ctr_name(int hanum);
 459
 460 static int gdth_open(struct inode *inode, struct file *filep);
 461 static int gdth_close(struct inode *inode, struct file *filep);
 462 static int gdth_ioctl(struct inode *inode, struct file *filep,
 463                       unsigned int cmd, unsigned long arg);
 464
 465 static void gdth_flush(int hanum);
 466 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
 467
 468 #ifdef DEBUG_GDTH
 469 static unchar   DebugState = DEBUG_GDTH;
 470
 471 #ifdef __SERIAL__
 472 #define MAX_SERBUF 160
 473 static void ser_init(void);
 474 static void ser_puts(char *str);
 475 static void ser_putc(char c);
 476 static int  ser_printk(const char *fmt, ...);
 477 static char strbuf[MAX_SERBUF+1];
 478 #ifdef __COM2__
 479 #define COM_BASE 0x2f8
 480 #else
 481 #define COM_BASE 0x3f8
 482 #endif
 483 static void ser_init()
 484 {
 485     unsigned port=COM_BASE;
 486
 487     outb(0x80,port+3);
 488     outb(0,port+1);
 489     /* 19200 Baud, if 9600: outb(12,port) */
 490     outb(6, port);
 491     outb(3,port+3);
 492     outb(0,port+1);
 493     /*
 494     ser_putc('I');
 495     ser_putc(' ');
 496     */
 497 }
 498
 499 static void ser_puts(char *str)
 500 {
 501     char *ptr;
 502
 503     ser_init();
 504     for (ptr=str;*ptr;++ptr)
 505         ser_putc(*ptr);
 506 }
 507
 508 static void ser_putc(char c)
 509 {
 510     unsigned port=COM_BASE;
 511
 512     while ((inb(port+5) & 0x20)==0);
 513     outb(c,port);
 514     if (c==0x0a)
 515     {
 516         while ((inb(port+5) & 0x20)==0);
 517         outb(0x0d,port);
 518     }
 519 }
 520
 521 static int ser_printk(const char *fmt, ...)
 522 {
 523     va_list args;
 524     int i;
 525
 526     va_start(args,fmt);
 527     i = vsprintf(strbuf,fmt,args);
 528     ser_puts(strbuf);
 529     va_end(args);
 530     return i;
 531 }
 532
 533 #define TRACE(a)    {if (DebugState==1) {ser_printk a;}}
 534 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {ser_printk a;}}
 535 #define TRACE3(a)   {if (DebugState!=0) {ser_printk a;}}
 536
 537 #else /* !__SERIAL__ */
 538 #define TRACE(a)    {if (DebugState==1) {printk a;}}
 539 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {printk a;}}
 540 #define TRACE3(a)   {if (DebugState!=0) {printk a;}}
 541 #endif
 542
 543 #else /* !DEBUG */
 544 #define TRACE(a)
 545 #define TRACE2(a)
 546 #define TRACE3(a)
 547 #endif
 548
 549 #ifdef GDTH_STATISTICS
 550 static ulong32 max_rq=0, max_index=0, max_sg=0;
 551 #ifdef INT_COAL
 552 static ulong32 max_int_coal=0;
 553 #endif
 554 static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
 555 static struct timer_list gdth_timer;
 556 #endif
 557
 558 #define PTR2USHORT(a)   (ushort)(ulong)(a)
 559 #define GDTOFFSOF(a,b)  (size_t)&(((a*)0)->b)
 560 #define INDEX_OK(i,t)   ((i)<sizeof(t)/sizeof((t)[0]))
 561
 562 #define NUMDATA(a)      ( (gdth_num_str  *)((a)->hostdata))
 563 #define HADATA(a)       (&((gdth_ext_str *)((a)->hostdata))->haext)
 564 #define CMDDATA(a)      (&((gdth_ext_str *)((a)->hostdata))->cmdext)
 565
 566 #define BUS_L2P(a,b)    ((b)>(a)->virt_bus ? (b-1):(b))
 567
 568 #define gdth_readb(addr)        readb(addr)
 569 #define gdth_readw(addr)        readw(addr)
 570 #define gdth_readl(addr)        readl(addr)
 571 #define gdth_writeb(b,addr)     writeb((b),(addr))
 572 #define gdth_writew(b,addr)     writew((b),(addr))
 573 #define gdth_writel(b,addr)     writel((b),(addr))
 574
 575 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 576 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
 577 static unchar   gdth_polling;                           /* polling if TRUE */
 578 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 579 static int      wait_index,wait_hanum;                  /* gdth_wait() */
 580 static int      gdth_ctr_count  = 0;                    /* controller count */
 581 static int      gdth_ctr_vcount = 0;                    /* virt. ctr. count */
 582 static int      gdth_ctr_released = 0;                  /* gdth_release() */
 583 static struct Scsi_Host *gdth_ctr_tab[MAXHA];           /* controller table */
 584 static struct Scsi_Host *gdth_ctr_vtab[MAXHA*MAXBUS];   /* virt. ctr. table */
 585 static unchar   gdth_write_through = FALSE;             /* write through */
 586 static gdth_evt_str ebuffer[MAX_EVENTS];                /* event buffer */
 587 static int elastidx;
 588 static int eoldidx;
 589 static int major;
 590
 591 #define DIN     1                               /* IN data direction */
 592 #define DOU     2                               /* OUT data direction */
 593 #define DNO     DIN                             /* no data transfer */
 594 #define DUN     DIN                             /* unknown data direction */
 595 static unchar gdth_direction_tab[0x100] = {
 596     DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
 597     DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
 598     DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
 599     DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
 600     DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
 601     DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
 602     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 603     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 604     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 605     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
 606     DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
 607     DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 608     DUN,DUN,DOU,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,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 611     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
 612 };
 613
 614 /* LILO and modprobe/insmod parameters */
 615 /* IRQ list for GDT3000/3020 EISA controllers */
 616 static int irq[MAXHA] __initdata =
 617 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 618  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 619 /* disable driver flag */
 620 static int disable __initdata = 0;
 621 /* reserve flag */
 622 static int reserve_mode = 1;
 623 /* reserve list */
 624 static int reserve_list[MAX_RES_ARGS] =
 625 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 626  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 627  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 628 /* scan order for PCI controllers */
 629 static int reverse_scan = 0;
 630 /* virtual channel for the host drives */
 631 static int hdr_channel = 0;
 632 /* max. IDs per channel */
 633 static int max_ids = MAXID;
 634 /* rescan all IDs */
 635 static int rescan = 0;
 636 /* map channels to virtual controllers */
 637 static int virt_ctr = 0;
 638 /* shared access */
 639 static int shared_access = 1;
 640 /* enable support for EISA and ISA controllers */
 641 static int probe_eisa_isa = 0;
 642 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
 643 static int force_dma32 = 0;
 644
 645 /* parameters for modprobe/insmod */
 646 module_param_array(irq, int, NULL, 0);
 647 module_param(disable, int, 0);
 648 module_param(reserve_mode, int, 0);
 649 module_param_array(reserve_list, int, NULL, 0);
 650 module_param(reverse_scan, int, 0);
 651 module_param(hdr_channel, int, 0);
 652 module_param(max_ids, int, 0);
 653 module_param(rescan, int, 0);
 654 module_param(virt_ctr, int, 0);
 655 module_param(shared_access, int, 0);
 656 module_param(probe_eisa_isa, int, 0);
 657 module_param(force_dma32, int, 0);
 658 MODULE_AUTHOR("Achim Leubner");
 659 MODULE_LICENSE("GPL");
 660
 661 /* ioctl interface */
 662 static struct file_operations gdth_fops = {
 663     .ioctl   = gdth_ioctl,
 664     .open    = gdth_open,
 665     .release = gdth_close,
 666 };
 667
 668 #include "gdth_proc.h"
 669 #include "gdth_proc.c"
 670
 671 /* notifier block to get a notify on system shutdown/halt/reboot */
 672 static struct notifier_block gdth_notifier = {
 673     gdth_halt, NULL, 0
 674 };
 675 static int notifier_disabled = 0;
 676
 677 static void gdth_delay(int milliseconds)
 678 {
 679     if (milliseconds == 0) {
 680         udelay(1);
 681     } else {
 682         mdelay(milliseconds);
 683     }
 684 }
 685
 686 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
 687 {
 688     *cyls = size /HEADS/SECS;
 689     if (*cyls <= MAXCYLS) {
 690         *heads = HEADS;
 691         *secs = SECS;
 692     } else {                                        /* too high for 64*32 */
 693         *cyls = size /MEDHEADS/MEDSECS;
 694         if (*cyls <= MAXCYLS) {
 695             *heads = MEDHEADS;
 696             *secs = MEDSECS;
 697         } else {                                    /* too high for 127*63 */
 698             *cyls = size /BIGHEADS/BIGSECS;
 699             *heads = BIGHEADS;
 700             *secs = BIGSECS;
 701         }
 702     }
 703 }
 704
 705 /* controller search and initialization functions */
 706
 707 static int __init gdth_search_eisa(ushort eisa_adr)
 708 {
 709     ulong32 id;
 710
 711     TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
 712     id = inl(eisa_adr+ID0REG);
 713     if (id == GDT3A_ID || id == GDT3B_ID) {     /* GDT3000A or GDT3000B */
 714         if ((inb(eisa_adr+EISAREG) & 8) == 0)
 715             return 0;                           /* not EISA configured */
 716         return 1;
 717     }
 718     if (id == GDT3_ID)                          /* GDT3000 */
 719         return 1;
 720
 721     return 0;
 722 }
 723
 724
 725 static int __init gdth_search_isa(ulong32 bios_adr)
 726 {
 727     void __iomem *addr;
 728     ulong32 id;
 729
 730     TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
 731     if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
 732         id = gdth_readl(addr);
 733         iounmap(addr);
 734         if (id == GDT2_ID)                          /* GDT2000 */
 735             return 1;
 736     }
 737     return 0;
 738 }
 739
 740
 741 static int __init gdth_search_pci(gdth_pci_str *pcistr)
 742 {
 743     ushort device, cnt;
 744
 745     TRACE(("gdth_search_pci()\n"));
 746
 747     cnt = 0;
 748     for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
 749         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 750     for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP;
 751          device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
 752         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 753     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 754                     PCI_DEVICE_ID_VORTEX_GDTNEWRX);
 755     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 756                     PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
 757     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 758                     PCI_DEVICE_ID_INTEL_SRC);
 759     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 760                     PCI_DEVICE_ID_INTEL_SRC_XSCALE);
 761     return cnt;
 762 }
 763
 764 /* Vortex only makes RAID controllers.
 765  * We do not really want to specify all 550 ids here, so wildcard match.
 766  */
 767 static struct pci_device_id gdthtable[] __attribute_used__ = {
 768     {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
 769     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID},
 770     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID},
 771     {0}
 772 };
 773 MODULE_DEVICE_TABLE(pci,gdthtable);
 774
 775 static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 776                                            ushort vendor, ushort device)
 777 {
 778     ulong base0, base1, base2;
 779     struct pci_dev *pdev;
 780
 781     TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
 782           *cnt, vendor, device));
 783
 784     pdev = NULL;
 785     while ((pdev = pci_find_device(vendor, device, pdev))
 786            != NULL) {
 787         if (pci_enable_device(pdev))
 788             continue;
 789         if (*cnt >= MAXHA)
 790             return;
 791         /* GDT PCI controller found, resources are already in pdev */
 792         pcistr[*cnt].pdev = pdev;
 793         pcistr[*cnt].vendor_id = vendor;
 794         pcistr[*cnt].device_id = device;
 795         pcistr[*cnt].subdevice_id = pdev->subsystem_device;
 796         pcistr[*cnt].bus = pdev->bus->number;
 797         pcistr[*cnt].device_fn = pdev->devfn;
 798         pcistr[*cnt].irq = pdev->irq;
 799         base0 = pci_resource_flags(pdev, 0);
 800         base1 = pci_resource_flags(pdev, 1);
 801         base2 = pci_resource_flags(pdev, 2);
 802         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 803             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 804             if (!(base0 & IORESOURCE_MEM))
 805                 continue;
 806             pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
 807         } else {                                  /* GDT6110, GDT6120, .. */
 808             if (!(base0 & IORESOURCE_MEM) ||
 809                 !(base2 & IORESOURCE_MEM) ||
 810                 !(base1 & IORESOURCE_IO))
 811                 continue;
 812             pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
 813             pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
 814             pcistr[*cnt].io    = pci_resource_start(pdev, 1);
 815         }
 816         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 817                 pcistr[*cnt].bus, PCI_SLOT(pcistr[*cnt].device_fn),
 818                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 819         (*cnt)++;
 820     }
 821 }
 822
 823
 824 static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
 825 {
 826     gdth_pci_str temp;
 827     int i, changed;
 828
 829     TRACE(("gdth_sort_pci() cnt %d\n",cnt));
 830     if (cnt == 0)
 831         return;
 832
 833     do {
 834         changed = FALSE;
 835         for (i = 0; i < cnt-1; ++i) {
 836             if (!reverse_scan) {
 837                 if ((pcistr[i].bus > pcistr[i+1].bus) ||
 838                     (pcistr[i].bus == pcistr[i+1].bus &&
 839                      PCI_SLOT(pcistr[i].device_fn) >
 840                      PCI_SLOT(pcistr[i+1].device_fn))) {
 841                     temp = pcistr[i];
 842                     pcistr[i] = pcistr[i+1];
 843                     pcistr[i+1] = temp;
 844                     changed = TRUE;
 845                 }
 846             } else {
 847                 if ((pcistr[i].bus < pcistr[i+1].bus) ||
 848                     (pcistr[i].bus == pcistr[i+1].bus &&
 849                      PCI_SLOT(pcistr[i].device_fn) <
 850                      PCI_SLOT(pcistr[i+1].device_fn))) {
 851                     temp = pcistr[i];
 852                     pcistr[i] = pcistr[i+1];
 853                     pcistr[i+1] = temp;
 854                     changed = TRUE;
 855                 }
 856             }
 857         }
 858     } while (changed);
 859 }
 860
 861
 862 static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
 863 {
 864     ulong32 retries,id;
 865     unchar prot_ver,eisacf,i,irq_found;
 866
 867     TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
 868
 869     /* disable board interrupts, deinitialize services */
 870     outb(0xff,eisa_adr+EDOORREG);
 871     outb(0x00,eisa_adr+EDENABREG);
 872     outb(0x00,eisa_adr+EINTENABREG);
 873
 874     outb(0xff,eisa_adr+LDOORREG);
 875     retries = INIT_RETRIES;
 876     gdth_delay(20);
 877     while (inb(eisa_adr+EDOORREG) != 0xff) {
 878         if (--retries == 0) {
 879             printk("GDT-EISA: Initialization error (DEINIT failed)\n");
 880             return 0;
 881         }
 882         gdth_delay(1);
 883         TRACE2(("wait for DEINIT: retries=%d\n",retries));
 884     }
 885     prot_ver = inb(eisa_adr+MAILBOXREG);
 886     outb(0xff,eisa_adr+EDOORREG);
 887     if (prot_ver != PROTOCOL_VERSION) {
 888         printk("GDT-EISA: Illegal protocol version\n");
 889         return 0;
 890     }
 891     ha->bmic = eisa_adr;
 892     ha->brd_phys = (ulong32)eisa_adr >> 12;
 893
 894     outl(0,eisa_adr+MAILBOXREG);
 895     outl(0,eisa_adr+MAILBOXREG+4);
 896     outl(0,eisa_adr+MAILBOXREG+8);
 897     outl(0,eisa_adr+MAILBOXREG+12);
 898
 899     /* detect IRQ */
 900     if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
 901         ha->oem_id = OEM_ID_ICP;
 902         ha->type = GDT_EISA;
 903         ha->stype = id;
 904         outl(1,eisa_adr+MAILBOXREG+8);
 905         outb(0xfe,eisa_adr+LDOORREG);
 906         retries = INIT_RETRIES;
 907         gdth_delay(20);
 908         while (inb(eisa_adr+EDOORREG) != 0xfe) {
 909             if (--retries == 0) {
 910                 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
 911                 return 0;
 912             }
 913             gdth_delay(1);
 914         }
 915         ha->irq = inb(eisa_adr+MAILBOXREG);
 916         outb(0xff,eisa_adr+EDOORREG);
 917         TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
 918         /* check the result */
 919         if (ha->irq == 0) {
 920                 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
 921                 for (i = 0, irq_found = FALSE;
 922                      i < MAXHA && irq[i] != 0xff; ++i) {
 923                 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
 924                     irq_found = TRUE;
 925                     break;
 926                 }
 927                 }
 928             if (irq_found) {
 929                 ha->irq = irq[i];
 930                 irq[i] = 0;
 931                 printk("GDT-EISA: Can not detect controller IRQ,\n");
 932                 printk("Use IRQ setting from command line (IRQ = %d)\n",
 933                        ha->irq);
 934             } else {
 935                 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
 936                 printk("the controller BIOS or use command line parameters\n");
 937                 return 0;
 938             }
 939         }
 940     } else {
 941         eisacf = inb(eisa_adr+EISAREG) & 7;
 942         if (eisacf > 4)                         /* level triggered */
 943             eisacf -= 4;
 944         ha->irq = gdth_irq_tab[eisacf];
 945         ha->oem_id = OEM_ID_ICP;
 946         ha->type = GDT_EISA;
 947         ha->stype = id;
 948     }
 949
 950     ha->dma64_support = 0;
 951     return 1;
 952 }
 953
 954
 955 static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
 956 {
 957     register gdt2_dpram_str __iomem *dp2_ptr;
 958     int i;
 959     unchar irq_drq,prot_ver;
 960     ulong32 retries;
 961
 962     TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
 963
 964     ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
 965     if (ha->brd == NULL) {
 966         printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
 967         return 0;
 968     }
 969     dp2_ptr = ha->brd;
 970     gdth_writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
 971     /* reset interface area */
 972     memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
 973     if (gdth_readl(&dp2_ptr->u) != 0) {
 974         printk("GDT-ISA: Initialization error (DPMEM write error)\n");
 975         iounmap(ha->brd);
 976         return 0;
 977     }
 978
 979     /* disable board interrupts, read DRQ and IRQ */
 980     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
 981     gdth_writeb(0x00, &dp2_ptr->io.irqen);
 982     gdth_writeb(0x00, &dp2_ptr->u.ic.S_Status);
 983     gdth_writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
 984
 985     irq_drq = gdth_readb(&dp2_ptr->io.rq);
 986     for (i=0; i<3; ++i) {
 987         if ((irq_drq & 1)==0)
 988             break;
 989         irq_drq >>= 1;
 990     }
 991     ha->drq = gdth_drq_tab[i];
 992
 993     irq_drq = gdth_readb(&dp2_ptr->io.rq) >> 3;
 994     for (i=1; i<5; ++i) {
 995         if ((irq_drq & 1)==0)
 996             break;
 997         irq_drq >>= 1;
 998     }
 999     ha->irq = gdth_irq_tab[i];
1000
1001     /* deinitialize services */
1002     gdth_writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
1003     gdth_writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
1004     gdth_writeb(0, &dp2_ptr->io.event);
1005     retries = INIT_RETRIES;
1006     gdth_delay(20);
1007     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1008         if (--retries == 0) {
1009             printk("GDT-ISA: Initialization error (DEINIT failed)\n");
1010             iounmap(ha->brd);
1011             return 0;
1012         }
1013         gdth_delay(1);
1014     }
1015     prot_ver = (unchar)gdth_readl(&dp2_ptr->u.ic.S_Info[0]);
1016     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1017     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1018     if (prot_ver != PROTOCOL_VERSION) {
1019         printk("GDT-ISA: Illegal protocol version\n");
1020         iounmap(ha->brd);
1021         return 0;
1022     }
1023
1024     ha->oem_id = OEM_ID_ICP;
1025     ha->type = GDT_ISA;
1026     ha->ic_all_size = sizeof(dp2_ptr->u);
1027     ha->stype= GDT2_ID;
1028     ha->brd_phys = bios_adr >> 4;
1029
1030     /* special request to controller BIOS */
1031     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
1032     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
1033     gdth_writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
1034     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
1035     gdth_writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
1036     gdth_writeb(0, &dp2_ptr->io.event);
1037     retries = INIT_RETRIES;
1038     gdth_delay(20);
1039     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1040         if (--retries == 0) {
1041             printk("GDT-ISA: Initialization error\n");
1042             iounmap(ha->brd);
1043             return 0;
1044         }
1045         gdth_delay(1);
1046     }
1047     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1048     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1049
1050     ha->dma64_support = 0;
1051     return 1;
1052 }
1053
1054
1055 static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
1056 {
1057     register gdt6_dpram_str __iomem *dp6_ptr;
1058     register gdt6c_dpram_str __iomem *dp6c_ptr;
1059     register gdt6m_dpram_str __iomem *dp6m_ptr;
1060     ulong32 retries;
1061     unchar prot_ver;
1062     ushort command;
1063     int i, found = FALSE;
1064
1065     TRACE(("gdth_init_pci()\n"));
1066
1067     if (pcistr->vendor_id == PCI_VENDOR_ID_INTEL)
1068         ha->oem_id = OEM_ID_INTEL;
1069     else
1070         ha->oem_id = OEM_ID_ICP;
1071     ha->brd_phys = (pcistr->bus << 8) | (pcistr->device_fn & 0xf8);
1072     ha->stype = (ulong32)pcistr->device_id;
1073     ha->subdevice_id = pcistr->subdevice_id;
1074     ha->irq = pcistr->irq;
1075     ha->pdev = pcistr->pdev;
1076
1077     if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
1078         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1079         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
1080         if (ha->brd == NULL) {
1081             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1082             return 0;
1083         }
1084         /* check and reset interface area */
1085         dp6_ptr = ha->brd;
1086         gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1087         if (gdth_readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1088             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1089                    pcistr->dpmem);
1090             found = FALSE;
1091             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1092                 iounmap(ha->brd);
1093                 ha->brd = ioremap(i, sizeof(ushort));
1094                 if (ha->brd == NULL) {
1095                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1096                     return 0;
1097                 }
1098                 if (gdth_readw(ha->brd) != 0xffff) {
1099                     TRACE2(("init_pci_old() address 0x%x busy\n", i));
1100                     continue;
1101                 }
1102                 iounmap(ha->brd);
1103                 pci_write_config_dword(pcistr->pdev,
1104                                        PCI_BASE_ADDRESS_0, i);
1105                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
1106                 if (ha->brd == NULL) {
1107                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1108                     return 0;
1109                 }
1110                 dp6_ptr = ha->brd;
1111                 gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1112                 if (gdth_readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1113                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1114                     found = TRUE;
1115                     break;
1116                 }
1117             }
1118             if (!found) {
1119                 printk("GDT-PCI: No free address found!\n");
1120                 iounmap(ha->brd);
1121                 return 0;
1122             }
1123         }
1124         memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
1125         if (gdth_readl(&dp6_ptr->u) != 0) {
1126             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1127             iounmap(ha->brd);
1128             return 0;
1129         }
1130
1131         /* disable board interrupts, deinit services */
1132         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1133         gdth_writeb(0x00, &dp6_ptr->io.irqen);
1134         gdth_writeb(0x00, &dp6_ptr->u.ic.S_Status);
1135         gdth_writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
1136
1137         gdth_writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
1138         gdth_writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
1139         gdth_writeb(0, &dp6_ptr->io.event);
1140         retries = INIT_RETRIES;
1141         gdth_delay(20);
1142         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1143             if (--retries == 0) {
1144                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1145                 iounmap(ha->brd);
1146                 return 0;
1147             }
1148             gdth_delay(1);
1149         }
1150         prot_ver = (unchar)gdth_readl(&dp6_ptr->u.ic.S_Info[0]);
1151         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1152         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1153         if (prot_ver != PROTOCOL_VERSION) {
1154             printk("GDT-PCI: Illegal protocol version\n");
1155             iounmap(ha->brd);
1156             return 0;
1157         }
1158
1159         ha->type = GDT_PCI;
1160         ha->ic_all_size = sizeof(dp6_ptr->u);
1161
1162         /* special command to controller BIOS */
1163         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1164         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1165         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1166         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1167         gdth_writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1168         gdth_writeb(0, &dp6_ptr->io.event);
1169         retries = INIT_RETRIES;
1170         gdth_delay(20);
1171         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1172             if (--retries == 0) {
1173                 printk("GDT-PCI: Initialization error\n");
1174                 iounmap(ha->brd);
1175                 return 0;
1176             }
1177             gdth_delay(1);
1178         }
1179         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1180         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1181
1182         ha->dma64_support = 0;
1183
1184     } else if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1185         ha->plx = (gdt6c_plx_regs *)pcistr->io;
1186         TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1187             pcistr->dpmem,ha->irq));
1188         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1189         if (ha->brd == NULL) {
1190             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1191             iounmap(ha->brd);
1192             return 0;
1193         }
1194         /* check and reset interface area */
1195         dp6c_ptr = ha->brd;
1196         gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1197         if (gdth_readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1198             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1199                    pcistr->dpmem);
1200             found = FALSE;
1201             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1202                 iounmap(ha->brd);
1203                 ha->brd = ioremap(i, sizeof(ushort));
1204                 if (ha->brd == NULL) {
1205                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1206                     return 0;
1207                 }
1208                 if (gdth_readw(ha->brd) != 0xffff) {
1209                     TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1210                     continue;
1211                 }
1212                 iounmap(ha->brd);
1213                 pci_write_config_dword(pcistr->pdev,
1214                                        PCI_BASE_ADDRESS_2, i);
1215                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1216                 if (ha->brd == NULL) {
1217                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1218                     return 0;
1219                 }
1220                 dp6c_ptr = ha->brd;
1221                 gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1222                 if (gdth_readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1223                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1224                     found = TRUE;
1225                     break;
1226                 }
1227             }
1228             if (!found) {
1229                 printk("GDT-PCI: No free address found!\n");
1230                 iounmap(ha->brd);
1231                 return 0;
1232             }
1233         }
1234         memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
1235         if (gdth_readl(&dp6c_ptr->u) != 0) {
1236             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1237             iounmap(ha->brd);
1238             return 0;
1239         }
1240
1241         /* disable board interrupts, deinit services */
1242         outb(0x00,PTR2USHORT(&ha->plx->control1));
1243         outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1244
1245         gdth_writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1246         gdth_writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1247
1248         gdth_writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1249         gdth_writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1250
1251         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1252
1253         retries = INIT_RETRIES;
1254         gdth_delay(20);
1255         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1256             if (--retries == 0) {
1257                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1258                 iounmap(ha->brd);
1259                 return 0;
1260             }
1261             gdth_delay(1);
1262         }
1263         prot_ver = (unchar)gdth_readl(&dp6c_ptr->u.ic.S_Info[0]);
1264         gdth_writeb(0, &dp6c_ptr->u.ic.Status);
1265         if (prot_ver != PROTOCOL_VERSION) {
1266             printk("GDT-PCI: Illegal protocol version\n");
1267             iounmap(ha->brd);
1268             return 0;
1269         }
1270
1271         ha->type = GDT_PCINEW;
1272         ha->ic_all_size = sizeof(dp6c_ptr->u);
1273
1274         /* special command to controller BIOS */
1275         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1276         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1277         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1278         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1279         gdth_writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1280
1281         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1282
1283         retries = INIT_RETRIES;
1284         gdth_delay(20);
1285         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1286             if (--retries == 0) {
1287                 printk("GDT-PCI: Initialization error\n");
1288                 iounmap(ha->brd);
1289                 return 0;
1290             }
1291             gdth_delay(1);
1292         }
1293         gdth_writeb(0, &dp6c_ptr->u.ic.S_Status);
1294
1295         ha->dma64_support = 0;
1296
1297     } else {                                            /* MPR */
1298         TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1299         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1300         if (ha->brd == NULL) {
1301             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1302             return 0;
1303         }
1304
1305         /* manipulate config. space to enable DPMEM, start RP controller */
1306         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1307         command |= 6;
1308         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1309         if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1310             pci_resource_start(pcistr->pdev, 8) = 0UL;
1311         i = 0xFEFF0001UL;
1312         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1313         gdth_delay(1);
1314         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1315                                pci_resource_start(pcistr->pdev, 8));
1316
1317         dp6m_ptr = ha->brd;
1318
1319         /* Ensure that it is safe to access the non HW portions of DPMEM.
1320          * Aditional check needed for Xscale based RAID controllers */
1321         while( ((int)gdth_readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1322             gdth_delay(1);
1323
1324         /* check and reset interface area */
1325         gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1326         if (gdth_readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1327             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1328                    pcistr->dpmem);
1329             found = FALSE;
1330             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1331                 iounmap(ha->brd);
1332                 ha->brd = ioremap(i, sizeof(ushort));
1333                 if (ha->brd == NULL) {
1334                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1335                     return 0;
1336                 }
1337                 if (gdth_readw(ha->brd) != 0xffff) {
1338                     TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1339                     continue;
1340                 }
1341                 iounmap(ha->brd);
1342                 pci_write_config_dword(pcistr->pdev,
1343                                        PCI_BASE_ADDRESS_0, i);
1344                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1345                 if (ha->brd == NULL) {
1346                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1347                     return 0;
1348                 }
1349                 dp6m_ptr = ha->brd;
1350                 gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1351                 if (gdth_readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1352                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1353                     found = TRUE;
1354                     break;
1355                 }
1356             }
1357             if (!found) {
1358                 printk("GDT-PCI: No free address found!\n");
1359                 iounmap(ha->brd);
1360                 return 0;
1361             }
1362         }
1363         memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1364
1365         /* disable board interrupts, deinit services */
1366         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1367                     &dp6m_ptr->i960r.edoor_en_reg);
1368         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1369         gdth_writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1370         gdth_writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1371
1372         gdth_writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1373         gdth_writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1374         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1375         retries = INIT_RETRIES;
1376         gdth_delay(20);
1377         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1378             if (--retries == 0) {
1379                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1380                 iounmap(ha->brd);
1381                 return 0;
1382             }
1383             gdth_delay(1);
1384         }
1385         prot_ver = (unchar)gdth_readl(&dp6m_ptr->u.ic.S_Info[0]);
1386         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1387         if (prot_ver != PROTOCOL_VERSION) {
1388             printk("GDT-PCI: Illegal protocol version\n");
1389             iounmap(ha->brd);
1390             return 0;
1391         }
1392
1393         ha->type = GDT_PCIMPR;
1394         ha->ic_all_size = sizeof(dp6m_ptr->u);
1395
1396         /* special command to controller BIOS */
1397         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1398         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1399         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1400         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1401         gdth_writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1402         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1403         retries = INIT_RETRIES;
1404         gdth_delay(20);
1405         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1406             if (--retries == 0) {
1407                 printk("GDT-PCI: Initialization error\n");
1408                 iounmap(ha->brd);
1409                 return 0;
1410             }
1411             gdth_delay(1);
1412         }
1413         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1414
1415         /* read FW version to detect 64-bit DMA support */
1416         gdth_writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1417         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1418         retries = INIT_RETRIES;
1419         gdth_delay(20);
1420         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1421             if (--retries == 0) {
1422                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1423                 iounmap(ha->brd);
1424                 return 0;
1425             }
1426             gdth_delay(1);
1427         }
1428         prot_ver = (unchar)(gdth_readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1429         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1430         if (prot_ver < 0x2b)      /* FW < x.43: no 64-bit DMA support */
1431             ha->dma64_support = 0;
1432         else
1433             ha->dma64_support = 1;
1434     }
1435
1436     return 1;
1437 }
1438
1439
1440 /* controller protocol functions */
1441
1442 static void __init gdth_enable_int(int hanum)
1443 {
1444     gdth_ha_str *ha;
1445     ulong flags;
1446     gdt2_dpram_str __iomem *dp2_ptr;
1447     gdt6_dpram_str __iomem *dp6_ptr;
1448     gdt6m_dpram_str __iomem *dp6m_ptr;
1449
1450     TRACE(("gdth_enable_int() hanum %d\n",hanum));
1451     ha = HADATA(gdth_ctr_tab[hanum]);
1452     spin_lock_irqsave(&ha->smp_lock, flags);
1453
1454     if (ha->type == GDT_EISA) {
1455         outb(0xff, ha->bmic + EDOORREG);
1456         outb(0xff, ha->bmic + EDENABREG);
1457         outb(0x01, ha->bmic + EINTENABREG);
1458     } else if (ha->type == GDT_ISA) {
1459         dp2_ptr = ha->brd;
1460         gdth_writeb(1, &dp2_ptr->io.irqdel);
1461         gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1462         gdth_writeb(1, &dp2_ptr->io.irqen);
1463     } else if (ha->type == GDT_PCI) {
1464         dp6_ptr = ha->brd;
1465         gdth_writeb(1, &dp6_ptr->io.irqdel);
1466         gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1467         gdth_writeb(1, &dp6_ptr->io.irqen);
1468     } else if (ha->type == GDT_PCINEW) {
1469         outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1470         outb(0x03, PTR2USHORT(&ha->plx->control1));
1471     } else if (ha->type == GDT_PCIMPR) {
1472         dp6m_ptr = ha->brd;
1473         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1474         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1475                     &dp6m_ptr->i960r.edoor_en_reg);
1476     }
1477     spin_unlock_irqrestore(&ha->smp_lock, flags);
1478 }
1479
1480
1481 static int gdth_get_status(unchar *pIStatus,int irq)
1482 {
1483     register gdth_ha_str *ha;
1484     int i;
1485
1486     TRACE(("gdth_get_status() irq %d ctr_count %d\n",
1487            irq,gdth_ctr_count));
1488
1489     *pIStatus = 0;
1490     for (i=0; i<gdth_ctr_count; ++i) {
1491         ha = HADATA(gdth_ctr_tab[i]);
1492         if (ha->irq != (unchar)irq)             /* check IRQ */
1493             continue;
1494         if (ha->type == GDT_EISA)
1495             *pIStatus = inb((ushort)ha->bmic + EDOORREG);
1496         else if (ha->type == GDT_ISA)
1497             *pIStatus =
1498                 gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1499         else if (ha->type == GDT_PCI)
1500             *pIStatus =
1501                 gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1502         else if (ha->type == GDT_PCINEW)
1503             *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1504         else if (ha->type == GDT_PCIMPR)
1505             *pIStatus =
1506                 gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1507
1508         if (*pIStatus)
1509             return i;                           /* board found */
1510     }
1511     return -1;
1512 }
1513
1514
1515 static int gdth_test_busy(int hanum)
1516 {
1517     register gdth_ha_str *ha;
1518     register int gdtsema0 = 0;
1519
1520     TRACE(("gdth_test_busy() hanum %d\n",hanum));
1521
1522     ha = HADATA(gdth_ctr_tab[hanum]);
1523     if (ha->type == GDT_EISA)
1524         gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1525     else if (ha->type == GDT_ISA)
1526         gdtsema0 = (int)gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1527     else if (ha->type == GDT_PCI)
1528         gdtsema0 = (int)gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1529     else if (ha->type == GDT_PCINEW)
1530         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1531     else if (ha->type == GDT_PCIMPR)
1532         gdtsema0 =
1533             (int)gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1534
1535     return (gdtsema0 & 1);
1536 }
1537
1538
1539 static int gdth_get_cmd_index(int hanum)
1540 {
1541     register gdth_ha_str *ha;
1542     int i;
1543
1544     TRACE(("gdth_get_cmd_index() hanum %d\n",hanum));
1545
1546     ha = HADATA(gdth_ctr_tab[hanum]);
1547     for (i=0; i<GDTH_MAXCMDS; ++i) {
1548         if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1549             ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1550             ha->cmd_tab[i].service = ha->pccb->Service;
1551             ha->pccb->CommandIndex = (ulong32)i+2;
1552             return (i+2);
1553         }
1554     }
1555     return 0;
1556 }
1557
1558
1559 static void gdth_set_sema0(int hanum)
1560 {
1561     register gdth_ha_str *ha;
1562
1563     TRACE(("gdth_set_sema0() hanum %d\n",hanum));
1564
1565     ha = HADATA(gdth_ctr_tab[hanum]);
1566     if (ha->type == GDT_EISA) {
1567         outb(1, ha->bmic + SEMA0REG);
1568     } else if (ha->type == GDT_ISA) {
1569         gdth_writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1570     } else if (ha->type == GDT_PCI) {
1571         gdth_writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1572     } else if (ha->type == GDT_PCINEW) {
1573         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1574     } else if (ha->type == GDT_PCIMPR) {
1575         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1576     }
1577 }
1578
1579
1580 static void gdth_copy_command(int hanum)
1581 {
1582     register gdth_ha_str *ha;
1583     register gdth_cmd_str *cmd_ptr;
1584     register gdt6m_dpram_str __iomem *dp6m_ptr;
1585     register gdt6c_dpram_str __iomem *dp6c_ptr;
1586     gdt6_dpram_str __iomem *dp6_ptr;
1587     gdt2_dpram_str __iomem *dp2_ptr;
1588     ushort cp_count,dp_offset,cmd_no;
1589
1590     TRACE(("gdth_copy_command() hanum %d\n",hanum));
1591
1592     ha = HADATA(gdth_ctr_tab[hanum]);
1593     cp_count = ha->cmd_len;
1594     dp_offset= ha->cmd_offs_dpmem;
1595     cmd_no   = ha->cmd_cnt;
1596     cmd_ptr  = ha->pccb;
1597
1598     ++ha->cmd_cnt;
1599     if (ha->type == GDT_EISA)
1600         return;                                 /* no DPMEM, no copy */
1601
1602     /* set cpcount dword aligned */
1603     if (cp_count & 3)
1604         cp_count += (4 - (cp_count & 3));
1605
1606     ha->cmd_offs_dpmem += cp_count;
1607
1608     /* set offset and service, copy command to DPMEM */
1609     if (ha->type == GDT_ISA) {
1610         dp2_ptr = ha->brd;
1611         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1612                     &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1613         gdth_writew((ushort)cmd_ptr->Service,
1614                     &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1615         memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1616     } else if (ha->type == GDT_PCI) {
1617         dp6_ptr = ha->brd;
1618         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1619                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1620         gdth_writew((ushort)cmd_ptr->Service,
1621                     &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1622         memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1623     } else if (ha->type == GDT_PCINEW) {
1624         dp6c_ptr = ha->brd;
1625         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1626                     &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1627         gdth_writew((ushort)cmd_ptr->Service,
1628                     &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1629         memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1630     } else if (ha->type == GDT_PCIMPR) {
1631         dp6m_ptr = ha->brd;
1632         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1633                     &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1634         gdth_writew((ushort)cmd_ptr->Service,
1635                     &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1636         memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1637     }
1638 }
1639
1640
1641 static void gdth_release_event(int hanum)
1642 {
1643     register gdth_ha_str *ha;
1644
1645     TRACE(("gdth_release_event() hanum %d\n",hanum));
1646     ha = HADATA(gdth_ctr_tab[hanum]);
1647
1648 #ifdef GDTH_STATISTICS
1649     {
1650         ulong32 i,j;
1651         for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1652             if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1653                 ++i;
1654         }
1655         if (max_index < i) {
1656             max_index = i;
1657             TRACE3(("GDT: max_index = %d\n",(ushort)i));
1658         }
1659     }
1660 #endif
1661
1662     if (ha->pccb->OpCode == GDT_INIT)
1663         ha->pccb->Service |= 0x80;
1664
1665     if (ha->type == GDT_EISA) {
1666         if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
1667             outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1668         outb(ha->pccb->Service, ha->bmic + LDOORREG);
1669     } else if (ha->type == GDT_ISA) {
1670         gdth_writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1671     } else if (ha->type == GDT_PCI) {
1672         gdth_writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1673     } else if (ha->type == GDT_PCINEW) {
1674         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1675     } else if (ha->type == GDT_PCIMPR) {
1676         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1677     }
1678 }
1679
1680
1681 static int gdth_wait(int hanum,int index,ulong32 time)
1682 {
1683     gdth_ha_str *ha;
1684     int answer_found = FALSE;
1685
1686     TRACE(("gdth_wait() hanum %d index %d time %d\n",hanum,index,time));
1687
1688     ha = HADATA(gdth_ctr_tab[hanum]);
1689     if (index == 0)
1690         return 1;                               /* no wait required */
1691
1692     gdth_from_wait = TRUE;
1693     do {
1694         gdth_interrupt((int)ha->irq,ha,NULL);
1695         if (wait_hanum==hanum && wait_index==index) {
1696             answer_found = TRUE;
1697             break;
1698         }
1699         gdth_delay(1);
1700     } while (--time);
1701     gdth_from_wait = FALSE;
1702
1703     while (gdth_test_busy(hanum))
1704         gdth_delay(0);
1705
1706     return (answer_found);
1707 }
1708
1709
1710 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
1711                              ulong64 p2,ulong64 p3)
1712 {
1713     register gdth_ha_str *ha;
1714     register gdth_cmd_str *cmd_ptr;
1715     int retries,index;
1716
1717     TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1718
1719     ha = HADATA(gdth_ctr_tab[hanum]);
1720     cmd_ptr = ha->pccb;
1721     memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1722
1723     /* make command  */
1724     for (retries = INIT_RETRIES;;) {
1725         cmd_ptr->Service          = service;
1726         cmd_ptr->RequestBuffer    = INTERNAL_CMND;
1727         if (!(index=gdth_get_cmd_index(hanum))) {
1728             TRACE(("GDT: No free command index found\n"));
1729             return 0;
1730         }
1731         gdth_set_sema0(hanum);
1732         cmd_ptr->OpCode           = opcode;
1733         cmd_ptr->BoardNode        = LOCALBOARD;
1734         if (service == CACHESERVICE) {
1735             if (opcode == GDT_IOCTL) {
1736                 cmd_ptr->u.ioctl.subfunc = p1;
1737                 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1738                 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1739                 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1740             } else {
1741                 if (ha->cache_feat & GDT_64BIT) {
1742                     cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1743                     cmd_ptr->u.cache64.BlockNo  = p2;
1744                 } else {
1745                     cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1746                     cmd_ptr->u.cache.BlockNo  = (ulong32)p2;
1747                 }
1748             }
1749         } else if (service == SCSIRAWSERVICE) {
1750             if (ha->raw_feat & GDT_64BIT) {
1751                 cmd_ptr->u.raw64.direction  = p1;
1752                 cmd_ptr->u.raw64.bus        = (unchar)p2;
1753                 cmd_ptr->u.raw64.target     = (unchar)p3;
1754                 cmd_ptr->u.raw64.lun        = (unchar)(p3 >> 8);
1755             } else {
1756                 cmd_ptr->u.raw.direction  = p1;
1757                 cmd_ptr->u.raw.bus        = (unchar)p2;
1758                 cmd_ptr->u.raw.target     = (unchar)p3;
1759                 cmd_ptr->u.raw.lun        = (unchar)(p3 >> 8);
1760             }
1761         } else if (service == SCREENSERVICE) {
1762             if (opcode == GDT_REALTIME) {
1763                 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1764                 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1765                 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1766             }
1767         }
1768         ha->cmd_len          = sizeof(gdth_cmd_str);
1769         ha->cmd_offs_dpmem   = 0;
1770         ha->cmd_cnt          = 0;
1771         gdth_copy_command(hanum);
1772         gdth_release_event(hanum);
1773         gdth_delay(20);
1774         if (!gdth_wait(hanum,index,INIT_TIMEOUT)) {
1775             printk("GDT: Initialization error (timeout service %d)\n",service);
1776             return 0;
1777         }
1778         if (ha->status != S_BSY || --retries == 0)
1779             break;
1780         gdth_delay(1);
1781     }
1782
1783     return (ha->status != S_OK ? 0:1);
1784 }
1785
1786
1787 /* search for devices */
1788
1789 static int __init gdth_search_drives(int hanum)
1790 {
1791     register gdth_ha_str *ha;
1792     ushort cdev_cnt, i;
1793     int ok;
1794     ulong32 bus_no, drv_cnt, drv_no, j;
1795     gdth_getch_str *chn;
1796     gdth_drlist_str *drl;
1797     gdth_iochan_str *ioc;
1798     gdth_raw_iochan_str *iocr;
1799     gdth_arcdl_str *alst;
1800     gdth_alist_str *alst2;
1801     gdth_oem_str_ioctl *oemstr;
1802 #ifdef INT_COAL
1803     gdth_perf_modes *pmod;
1804 #endif
1805
1806 #ifdef GDTH_RTC
1807     unchar rtc[12];
1808     ulong flags;
1809 #endif
1810
1811     TRACE(("gdth_search_drives() hanum %d\n",hanum));
1812     ha = HADATA(gdth_ctr_tab[hanum]);
1813     ok = 0;
1814
1815     /* initialize controller services, at first: screen service */
1816     ha->screen_feat = 0;
1817     if (!force_dma32) {
1818         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_X_INIT_SCR,0,0,0);
1819         if (ok)
1820             ha->screen_feat = GDT_64BIT;
1821     }
1822     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1823         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_INIT,0,0,0);
1824     if (!ok) {
1825         printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1826                hanum, ha->status);
1827         return 0;
1828     }
1829     TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1830
1831 #ifdef GDTH_RTC
1832     /* read realtime clock info, send to controller */
1833     /* 1. wait for the falling edge of update flag */
1834     spin_lock_irqsave(&rtc_lock, flags);
1835     for (j = 0; j < 1000000; ++j)
1836         if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1837             break;
1838     for (j = 0; j < 1000000; ++j)
1839         if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1840             break;
1841     /* 2. read info */
1842     do {
1843         for (j = 0; j < 12; ++j)
1844             rtc[j] = CMOS_READ(j);
1845     } while (rtc[0] != CMOS_READ(0));
1846     spin_lock_irqrestore(&rtc_lock, flags);
1847     TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1848             *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1849     /* 3. send to controller firmware */
1850     gdth_internal_cmd(hanum,SCREENSERVICE,GDT_REALTIME, *(ulong32 *)&rtc[0],
1851                       *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1852 #endif
1853
1854     /* unfreeze all IOs */
1855     gdth_internal_cmd(hanum,CACHESERVICE,GDT_UNFREEZE_IO,0,0,0);
1856
1857     /* initialize cache service */
1858     ha->cache_feat = 0;
1859     if (!force_dma32) {
1860         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INIT_HOST,LINUX_OS,0,0);
1861         if (ok)
1862             ha->cache_feat = GDT_64BIT;
1863     }
1864     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1865         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_INIT,LINUX_OS,0,0);
1866     if (!ok) {
1867         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1868                hanum, ha->status);
1869         return 0;
1870     }
1871     TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1872     cdev_cnt = (ushort)ha->info;
1873     ha->fw_vers = ha->service;
1874
1875 #ifdef INT_COAL
1876     if (ha->type == GDT_PCIMPR) {
1877         /* set perf. modes */
1878         pmod = (gdth_perf_modes *)ha->pscratch;
1879         pmod->version          = 1;
1880         pmod->st_mode          = 1;    /* enable one status buffer */
1881         *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1882         pmod->st_buff_indx1    = COALINDEX;
1883         pmod->st_buff_addr2    = 0;
1884         pmod->st_buff_u_addr2  = 0;
1885         pmod->st_buff_indx2    = 0;
1886         pmod->st_buff_size     = sizeof(gdth_coal_status) * MAXOFFSETS;
1887         pmod->cmd_mode         = 0;    // disable all cmd buffers
1888         pmod->cmd_buff_addr1   = 0;
1889         pmod->cmd_buff_u_addr1 = 0;
1890         pmod->cmd_buff_indx1   = 0;
1891         pmod->cmd_buff_addr2   = 0;
1892         pmod->cmd_buff_u_addr2 = 0;
1893         pmod->cmd_buff_indx2   = 0;
1894         pmod->cmd_buff_size    = 0;
1895         pmod->reserved1        = 0;
1896         pmod->reserved2        = 0;
1897         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,SET_PERF_MODES,
1898                               INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
1899             printk("GDT-HA %d: Interrupt coalescing activated\n", hanum);
1900         }
1901     }
1902 #endif
1903
1904     /* detect number of buses - try new IOCTL */
1905     iocr = (gdth_raw_iochan_str *)ha->pscratch;
1906     iocr->hdr.version        = 0xffffffff;
1907     iocr->hdr.list_entries   = MAXBUS;
1908     iocr->hdr.first_chan     = 0;
1909     iocr->hdr.last_chan      = MAXBUS-1;
1910     iocr->hdr.list_offset    = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
1911     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_RAW_DESC,
1912                           INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
1913         TRACE2(("IOCHAN_RAW_DESC supported!\n"));
1914         ha->bus_cnt = iocr->hdr.chan_count;
1915         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1916             if (iocr->list[bus_no].proc_id < MAXID)
1917                 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
1918             else
1919                 ha->bus_id[bus_no] = 0xff;
1920         }
1921     } else {
1922         /* old method */
1923         chn = (gdth_getch_str *)ha->pscratch;
1924         for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
1925             chn->channel_no = bus_no;
1926             if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
1927                                    SCSI_CHAN_CNT | L_CTRL_PATTERN,
1928                                    IO_CHANNEL | INVALID_CHANNEL,
1929                                    sizeof(gdth_getch_str))) {
1930                 if (bus_no == 0) {
1931                     printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
1932                            hanum, ha->status);
1933                     return 0;
1934                 }
1935                 break;
1936             }
1937             if (chn->siop_id < MAXID)
1938                 ha->bus_id[bus_no] = chn->siop_id;
1939             else
1940                 ha->bus_id[bus_no] = 0xff;
1941         }
1942         ha->bus_cnt = (unchar)bus_no;
1943     }
1944     TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
1945
1946     /* read cache configuration */
1947     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_INFO,
1948                            INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
1949         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1950                hanum, ha->status);
1951         return 0;
1952     }
1953     ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
1954     TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
1955             ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
1956             ha->cpar.write_back,ha->cpar.block_size));
1957
1958     /* read board info and features */
1959     ha->more_proc = FALSE;
1960     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_INFO,
1961                           INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
1962         memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
1963                sizeof(gdth_binfo_str));
1964         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_FEATURES,
1965                               INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
1966             TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
1967             ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
1968             ha->more_proc = TRUE;
1969         }
1970     } else {
1971         TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
1972         strcpy(ha->binfo.type_string, gdth_ctr_name(hanum));
1973     }
1974     TRACE2(("Controller name: %s\n",ha->binfo.type_string));
1975
1976     /* read more informations */
1977     if (ha->more_proc) {
1978         /* physical drives, channel addresses */
1979         ioc = (gdth_iochan_str *)ha->pscratch;
1980         ioc->hdr.version        = 0xffffffff;
1981         ioc->hdr.list_entries   = MAXBUS;
1982         ioc->hdr.first_chan     = 0;
1983         ioc->hdr.last_chan      = MAXBUS-1;
1984         ioc->hdr.list_offset    = GDTOFFSOF(gdth_iochan_str, list[0]);
1985         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_DESC,
1986                               INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
1987             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1988                 ha->raw[bus_no].address = ioc->list[bus_no].address;
1989                 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
1990             }
1991         } else {
1992             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1993                 ha->raw[bus_no].address = IO_CHANNEL;
1994                 ha->raw[bus_no].local_no = bus_no;
1995             }
1996         }
1997         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1998             chn = (gdth_getch_str *)ha->pscratch;
1999             chn->channel_no = ha->raw[bus_no].local_no;
2000             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2001                                   SCSI_CHAN_CNT | L_CTRL_PATTERN,
2002                                   ha->raw[bus_no].address | INVALID_CHANNEL,
2003                                   sizeof(gdth_getch_str))) {
2004                 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
2005                 TRACE2(("Channel %d: %d phys. drives\n",
2006                         bus_no,chn->drive_cnt));
2007             }
2008             if (ha->raw[bus_no].pdev_cnt > 0) {
2009                 drl = (gdth_drlist_str *)ha->pscratch;
2010                 drl->sc_no = ha->raw[bus_no].local_no;
2011                 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
2012                 if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2013                                       SCSI_DR_LIST | L_CTRL_PATTERN,
2014                                       ha->raw[bus_no].address | INVALID_CHANNEL,
2015                                       sizeof(gdth_drlist_str))) {
2016                     for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
2017                         ha->raw[bus_no].id_list[j] = drl->sc_list[j];
2018                 } else {
2019                     ha->raw[bus_no].pdev_cnt = 0;
2020                 }
2021             }
2022         }
2023
2024         /* logical drives */
2025         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_CNT,
2026                               INVALID_CHANNEL,sizeof(ulong32))) {
2027             drv_cnt = *(ulong32 *)ha->pscratch;
2028             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_LIST,
2029                                   INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
2030                 for (j = 0; j < drv_cnt; ++j) {
2031                     drv_no = ((ulong32 *)ha->pscratch)[j];
2032                     if (drv_no < MAX_LDRIVES) {
2033                         ha->hdr[drv_no].is_logdrv = TRUE;
2034                         TRACE2(("Drive %d is log. drive\n",drv_no));
2035                     }
2036                 }
2037             }
2038             alst = (gdth_arcdl_str *)ha->pscratch;
2039             alst->entries_avail = MAX_LDRIVES;
2040             alst->first_entry = 0;
2041             alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
2042             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2043                                   ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
2044                                   INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
2045                                   (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
2046                 for (j = 0; j < alst->entries_init; ++j) {
2047                     ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
2048                     ha->hdr[j].is_master = alst->list[j].is_master;
2049                     ha->hdr[j].is_parity = alst->list[j].is_parity;
2050                     ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
2051                     ha->hdr[j].master_no = alst->list[j].cd_handle;
2052                 }
2053             } else if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2054                                          ARRAY_DRV_LIST | LA_CTRL_PATTERN,
2055                                          0, 35 * sizeof(gdth_alist_str))) {
2056                 for (j = 0; j < 35; ++j) {
2057                     alst2 = &((gdth_alist_str *)ha->pscratch)[j];
2058                     ha->hdr[j].is_arraydrv = alst2->is_arrayd;
2059                     ha->hdr[j].is_master = alst2->is_master;
2060                     ha->hdr[j].is_parity = alst2->is_parity;
2061                     ha->hdr[j].is_hotfix = alst2->is_hotfix;
2062                     ha->hdr[j].master_no = alst2->cd_handle;
2063                 }
2064             }
2065         }
2066     }
2067
2068     /* initialize raw service */
2069     ha->raw_feat = 0;
2070     if (!force_dma32) {
2071         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_X_INIT_RAW,0,0,0);
2072         if (ok)
2073             ha->raw_feat = GDT_64BIT;
2074     }
2075     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
2076         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_INIT,0,0,0);
2077     if (!ok) {
2078         printk("GDT-HA %d: Initialization error raw service (code %d)\n",
2079                hanum, ha->status);
2080         return 0;
2081     }
2082     TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
2083
2084     /* set/get features raw service (scatter/gather) */
2085     if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_SET_FEAT,SCATTER_GATHER,
2086                           0,0)) {
2087         TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
2088         if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_GET_FEAT,0,0,0)) {
2089             TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
2090                     ha->info));
2091             ha->raw_feat |= (ushort)ha->info;
2092         }
2093     }
2094
2095     /* set/get features cache service (equal to raw service) */
2096     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_SET_FEAT,0,
2097                           SCATTER_GATHER,0)) {
2098         TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
2099         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_GET_FEAT,0,0,0)) {
2100             TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
2101                     ha->info));
2102             ha->cache_feat |= (ushort)ha->info;
2103         }
2104     }
2105
2106     /* reserve drives for raw service */
2107     if (reserve_mode != 0) {
2108         gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE_ALL,
2109                           reserve_mode == 1 ? 1 : 3, 0, 0);
2110         TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
2111                 ha->status));
2112     }
2113     for (i = 0; i < MAX_RES_ARGS; i += 4) {
2114         if (reserve_list[i] == hanum && reserve_list[i+1] < ha->bus_cnt &&
2115             reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
2116             TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
2117                     reserve_list[i], reserve_list[i+1],
2118                     reserve_list[i+2], reserve_list[i+3]));
2119             if (!gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE,0,
2120                                    reserve_list[i+1], reserve_list[i+2] |
2121                                    (reserve_list[i+3] << 8))) {
2122                 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
2123                        hanum, ha->status);
2124              }
2125         }
2126     }
2127
2128     /* Determine OEM string using IOCTL */
2129     oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
2130     oemstr->params.ctl_version = 0x01;
2131     oemstr->params.buffer_size = sizeof(oemstr->text);
2132     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2133                           CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
2134                           sizeof(gdth_oem_str_ioctl))) {
2135         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
2136         printk("GDT-HA %d: Vendor: %s Name: %s\n",
2137                hanum,oemstr->text.oem_company_name,ha->binfo.type_string);
2138         /* Save the Host Drive inquiry data */
2139 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2140         strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
2141                 sizeof(ha->oem_name));
2142 #else
2143         strncpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,7);
2144         ha->oem_name[7] = '\0';
2145 #endif
2146     } else {
2147         /* Old method, based on PCI ID */
2148         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
2149         printk("GDT-HA %d: Name: %s\n",
2150                hanum,ha->binfo.type_string);
2151 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2152         if (ha->oem_id == OEM_ID_INTEL)
2153             strlcpy(ha->oem_name,"Intel  ", sizeof(ha->oem_name));
2154         else
2155             strlcpy(ha->oem_name,"ICP    ", sizeof(ha->oem_name));
2156 #else
2157         if (ha->oem_id == OEM_ID_INTEL)
2158             strcpy(ha->oem_name,"Intel  ");
2159         else
2160             strcpy(ha->oem_name,"ICP    ");
2161 #endif
2162     }
2163
2164     /* scanning for host drives */
2165     for (i = 0; i < cdev_cnt; ++i)
2166         gdth_analyse_hdrive(hanum,i);
2167
2168     TRACE(("gdth_search_drives() OK\n"));
2169     return 1;
2170 }
2171
2172 static int gdth_analyse_hdrive(int hanum,ushort hdrive)
2173 {
2174     register gdth_ha_str *ha;
2175     ulong32 drv_cyls;
2176     int drv_hds, drv_secs;
2177
2178     TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n",hanum,hdrive));
2179     if (hdrive >= MAX_HDRIVES)
2180         return 0;
2181     ha = HADATA(gdth_ctr_tab[hanum]);
2182
2183     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_INFO,hdrive,0,0))
2184         return 0;
2185     ha->hdr[hdrive].present = TRUE;
2186     ha->hdr[hdrive].size = ha->info;
2187
2188     /* evaluate mapping (sectors per head, heads per cylinder) */
2189     ha->hdr[hdrive].size &= ~SECS32;
2190     if (ha->info2 == 0) {
2191         gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2192     } else {
2193         drv_hds = ha->info2 & 0xff;
2194         drv_secs = (ha->info2 >> 8) & 0xff;
2195         drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2196     }
2197     ha->hdr[hdrive].heads = (unchar)drv_hds;
2198     ha->hdr[hdrive].secs  = (unchar)drv_secs;
2199     /* round size */
2200     ha->hdr[hdrive].size  = drv_cyls * drv_hds * drv_secs;
2201
2202     if (ha->cache_feat & GDT_64BIT) {
2203         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INFO,hdrive,0,0)
2204             && ha->info2 != 0) {
2205             ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2206         }
2207     }
2208     TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2209             hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2210
2211     /* get informations about device */
2212     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_DEVTYPE,hdrive,0,0)) {
2213         TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2214                 hdrive,ha->info));
2215         ha->hdr[hdrive].devtype = (ushort)ha->info;
2216     }
2217
2218     /* cluster info */
2219     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_CLUST_INFO,hdrive,0,0)) {
2220         TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2221                 hdrive,ha->info));
2222         if (!shared_access)
2223             ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2224     }
2225
2226     /* R/W attributes */
2227     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_RW_ATTRIBS,hdrive,0,0)) {
2228         TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2229                 hdrive,ha->info));
2230         ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2231     }
2232
2233     return 1;
2234 }
2235
2236
2237 /* command queueing/sending functions */
2238
2239 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority)
2240 {
2241     register gdth_ha_str *ha;
2242     register Scsi_Cmnd *pscp;
2243     register Scsi_Cmnd *nscp;
2244     ulong flags;
2245     unchar b, t;
2246
2247     TRACE(("gdth_putq() priority %d\n",priority));
2248     ha = HADATA(gdth_ctr_tab[hanum]);
2249     spin_lock_irqsave(&ha->smp_lock, flags);
2250
2251     scp->SCp.this_residual = (int)priority;
2252     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
2253     t = scp->device->id;
2254     if (priority >= DEFAULT_PRI) {
2255         if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2256             (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) {
2257             TRACE2(("gdth_putq(): locked IO -> update_timeout()\n"));
2258             scp->SCp.buffers_residual = gdth_update_timeout(hanum, scp, 0);
2259         }
2260     }
2261
2262     if (ha->req_first==NULL) {
2263         ha->req_first = scp;                    /* queue was empty */
2264         scp->SCp.ptr = NULL;
2265     } else {                                    /* queue not empty */
2266         pscp = ha->req_first;
2267         nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2268         /* priority: 0-highest,..,0xff-lowest */
2269         while (nscp && (unchar)nscp->SCp.this_residual <= priority) {
2270             pscp = nscp;
2271             nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2272         }
2273         pscp->SCp.ptr = (char *)scp;
2274         scp->SCp.ptr  = (char *)nscp;
2275     }
2276     spin_unlock_irqrestore(&ha->smp_lock, flags);
2277
2278 #ifdef GDTH_STATISTICS
2279     flags = 0;
2280     for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2281         ++flags;
2282     if (max_rq < flags) {
2283         max_rq = flags;
2284         TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2285     }
2286 #endif
2287 }
2288
2289 static void gdth_next(int hanum)
2290 {
2291     register gdth_ha_str *ha;
2292     register Scsi_Cmnd *pscp;
2293     register Scsi_Cmnd *nscp;
2294     unchar b, t, l, firsttime;
2295     unchar this_cmd, next_cmd;
2296     ulong flags = 0;
2297     int cmd_index;
2298
2299     TRACE(("gdth_next() hanum %d\n",hanum));
2300     ha = HADATA(gdth_ctr_tab[hanum]);
2301     if (!gdth_polling)
2302         spin_lock_irqsave(&ha->smp_lock, flags);
2303
2304     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2305     this_cmd = firsttime = TRUE;
2306     next_cmd = gdth_polling ? FALSE:TRUE;
2307     cmd_index = 0;
2308
2309     for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2310         if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2311             pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2312         b = virt_ctr ? NUMDATA(nscp->device->host)->busnum : nscp->device->channel;
2313         t = nscp->device->id;
2314         l = nscp->device->lun;
2315         if (nscp->SCp.this_residual >= DEFAULT_PRI) {
2316             if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2317                 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2318                 continue;
2319         }
2320
2321         if (firsttime) {
2322             if (gdth_test_busy(hanum)) {        /* controller busy ? */
2323                 TRACE(("gdth_next() controller %d busy !\n",hanum));
2324                 if (!gdth_polling) {
2325                     spin_unlock_irqrestore(&ha->smp_lock, flags);
2326                     return;
2327                 }
2328                 while (gdth_test_busy(hanum))
2329                     gdth_delay(1);
2330             }
2331             firsttime = FALSE;
2332         }
2333
2334         if (nscp->done != gdth_scsi_done || nscp->cmnd[0] != 0xff) {
2335         if (nscp->SCp.phase == -1) {
2336             nscp->SCp.phase = CACHESERVICE;           /* default: cache svc. */
2337             if (nscp->cmnd[0] == TEST_UNIT_READY) {
2338                 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2339                         b, t, l));
2340                 /* TEST_UNIT_READY -> set scan mode */
2341                 if ((ha->scan_mode & 0x0f) == 0) {
2342                     if (b == 0 && t == 0 && l == 0) {
2343                         ha->scan_mode |= 1;
2344                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2345                     }
2346                 } else if ((ha->scan_mode & 0x0f) == 1) {
2347                     if (b == 0 && ((t == 0 && l == 1) ||
2348                          (t == 1 && l == 0))) {
2349                         nscp->SCp.sent_command = GDT_SCAN_START;
2350                         nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2351                             | SCSIRAWSERVICE;
2352                         ha->scan_mode = 0x12;
2353                         TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2354                                 ha->scan_mode));
2355                     } else {
2356                         ha->scan_mode &= 0x10;
2357                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2358                     }
2359                 } else if (ha->scan_mode == 0x12) {
2360                     if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2361                         nscp->SCp.phase = SCSIRAWSERVICE;
2362                         nscp->SCp.sent_command = GDT_SCAN_END;
2363                         ha->scan_mode &= 0x10;
2364                         TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2365                                 ha->scan_mode));
2366                     }
2367                 }
2368             }
2369             if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2370                 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2371                 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2372                 /* always GDT_CLUST_INFO! */
2373                 nscp->SCp.sent_command = GDT_CLUST_INFO;
2374             }
2375         }
2376         }
2377
2378         if (nscp->SCp.sent_command != -1) {
2379             if ((nscp->SCp.phase & 0xff) == CACHESERVICE) {
2380                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2381                     this_cmd = FALSE;
2382                 next_cmd = FALSE;
2383             } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) {
2384                 if (!(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2385                     this_cmd = FALSE;
2386                 next_cmd = FALSE;
2387             } else {
2388                 memset((char*)nscp->sense_buffer,0,16);
2389                 nscp->sense_buffer[0] = 0x70;
2390                 nscp->sense_buffer[2] = NOT_READY;
2391                 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2392                 if (!nscp->SCp.have_data_in)
2393                     nscp->SCp.have_data_in++;
2394                 else
2395                     nscp->scsi_done(nscp);
2396             }
2397         } else if (nscp->done == gdth_scsi_done && nscp->cmnd[0] == 0xff) {
2398             if (!(cmd_index=gdth_special_cmd(hanum,nscp)))
2399                 this_cmd = FALSE;
2400             next_cmd = FALSE;
2401         } else if (b != ha->virt_bus) {
2402             if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2403                 !(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2404                 this_cmd = FALSE;
2405             else
2406                 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2407         } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2408             TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2409                     nscp->cmnd[0], b, t, l));
2410             nscp->result = DID_BAD_TARGET << 16;
2411             if (!nscp->SCp.have_data_in)
2412                 nscp->SCp.have_data_in++;
2413             else
2414                 nscp->scsi_done(nscp);
2415         } else {
2416             switch (nscp->cmnd[0]) {
2417               case TEST_UNIT_READY:
2418               case INQUIRY:
2419               case REQUEST_SENSE:
2420               case READ_CAPACITY:
2421               case VERIFY:
2422               case START_STOP:
2423               case MODE_SENSE:
2424               case SERVICE_ACTION_IN:
2425                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2426                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2427                        nscp->cmnd[4],nscp->cmnd[5]));
2428                 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2429                     /* return UNIT_ATTENTION */
2430                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2431                              nscp->cmnd[0], t));
2432                     ha->hdr[t].media_changed = FALSE;
2433                     memset((char*)nscp->sense_buffer,0,16);
2434                     nscp->sense_buffer[0] = 0x70;
2435                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2436                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2437                     if (!nscp->SCp.have_data_in)
2438                         nscp->SCp.have_data_in++;
2439                     else
2440                         nscp->scsi_done(nscp);
2441                 } else if (gdth_internal_cache_cmd(hanum,nscp))
2442                     nscp->scsi_done(nscp);
2443                 break;
2444
2445               case ALLOW_MEDIUM_REMOVAL:
2446                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2447                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2448                        nscp->cmnd[4],nscp->cmnd[5]));
2449                 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2450                     TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2451                     nscp->result = DID_OK << 16;
2452                     nscp->sense_buffer[0] = 0;
2453                     if (!nscp->SCp.have_data_in)
2454                         nscp->SCp.have_data_in++;
2455                     else
2456                         nscp->scsi_done(nscp);
2457                 } else {
2458                     nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2459                     TRACE(("Prevent/allow r. %d rem. drive %d\n",
2460                            nscp->cmnd[4],nscp->cmnd[3]));
2461                     if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2462                         this_cmd = FALSE;
2463                 }
2464                 break;
2465
2466               case RESERVE:
2467               case RELEASE:
2468                 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2469                         "RESERVE" : "RELEASE"));
2470                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2471                     this_cmd = FALSE;
2472                 break;
2473
2474               case READ_6:
2475               case WRITE_6:
2476               case READ_10:
2477               case WRITE_10:
2478               case READ_16:
2479               case WRITE_16:
2480                 if (ha->hdr[t].media_changed) {
2481                     /* return UNIT_ATTENTION */
2482                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2483                              nscp->cmnd[0], t));
2484                     ha->hdr[t].media_changed = FALSE;
2485                     memset((char*)nscp->sense_buffer,0,16);
2486                     nscp->sense_buffer[0] = 0x70;
2487                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2488                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2489                     if (!nscp->SCp.have_data_in)
2490                         nscp->SCp.have_data_in++;
2491                     else
2492                         nscp->scsi_done(nscp);
2493                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2494                     this_cmd = FALSE;
2495                 break;
2496
2497               default:
2498                 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2499                         nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2500                         nscp->cmnd[4],nscp->cmnd[5]));
2501                 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2502                        hanum, nscp->cmnd[0]);
2503                 nscp->result = DID_ABORT << 16;
2504                 if (!nscp->SCp.have_data_in)
2505                     nscp->SCp.have_data_in++;
2506                 else
2507                     nscp->scsi_done(nscp);
2508                 break;
2509             }
2510         }
2511
2512         if (!this_cmd)
2513             break;
2514         if (nscp == ha->req_first)
2515             ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2516         else
2517             pscp->SCp.ptr = nscp->SCp.ptr;
2518         if (!next_cmd)
2519             break;
2520     }
2521
2522     if (ha->cmd_cnt > 0) {
2523         gdth_release_event(hanum);
2524     }
2525
2526     if (!gdth_polling)
2527         spin_unlock_irqrestore(&ha->smp_lock, flags);
2528
2529     if (gdth_polling && ha->cmd_cnt > 0) {
2530         if (!gdth_wait(hanum,cmd_index,POLL_TIMEOUT))
2531             printk("GDT-HA %d: Command %d timed out !\n",
2532                    hanum,cmd_index);
2533     }
2534 }
2535
2536 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
2537                                     char *buffer,ushort count)
2538 {
2539     ushort cpcount,i;
2540     ushort cpsum,cpnow;
2541     struct scatterlist *sl;
2542     gdth_ha_str *ha;
2543     char *address;
2544
2545     cpcount = count<=(ushort)scp->bufflen ? count:(ushort)scp->bufflen;
2546     ha = HADATA(gdth_ctr_tab[hanum]);
2547
2548     if (scp->use_sg) {
2549         sl = (struct scatterlist *)scp->request_buffer;
2550         for (i=0,cpsum=0; i<scp->use_sg; ++i,++sl) {
2551             unsigned long flags;
2552             cpnow = (ushort)sl->length;
2553             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2554                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2555             if (cpsum+cpnow > cpcount)
2556                 cpnow = cpcount - cpsum;
2557             cpsum += cpnow;
2558             if (!sl->page) {
2559                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2560                        hanum);
2561                 return;
2562             }
2563             local_irq_save(flags);
2564             address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
2565             memcpy(address,buffer,cpnow);
2566             flush_dcache_page(sl->page);
2567             kunmap_atomic(address, KM_BIO_SRC_IRQ);
2568             local_irq_restore(flags);
2569             if (cpsum == cpcount)
2570                 break;
2571             buffer += cpnow;
2572         }
2573     } else {
2574         TRACE(("copy_internal() count %d\n",cpcount));
2575         memcpy((char*)scp->request_buffer,buffer,cpcount);
2576     }
2577 }
2578
2579 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp)
2580 {
2581     register gdth_ha_str *ha;
2582     unchar t;
2583     gdth_inq_data inq;
2584     gdth_rdcap_data rdc;
2585     gdth_sense_data sd;
2586     gdth_modep_data mpd;
2587
2588     ha = HADATA(gdth_ctr_tab[hanum]);
2589     t  = scp->device->id;
2590     TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2591            scp->cmnd[0],t));
2592
2593     scp->result = DID_OK << 16;
2594     scp->sense_buffer[0] = 0;
2595
2596     switch (scp->cmnd[0]) {
2597       case TEST_UNIT_READY:
2598       case VERIFY:
2599       case START_STOP:
2600         TRACE2(("Test/Verify/Start hdrive %d\n",t));
2601         break;
2602
2603       case INQUIRY:
2604         TRACE2(("Inquiry hdrive %d devtype %d\n",
2605                 t,ha->hdr[t].devtype));
2606         inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2607         /* you can here set all disks to removable, if you want to do
2608            a flush using the ALLOW_MEDIUM_REMOVAL command */
2609         inq.modif_rmb = 0x00;
2610         if ((ha->hdr[t].devtype & 1) ||
2611             (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2612             inq.modif_rmb = 0x80;
2613         inq.version   = 2;
2614         inq.resp_aenc = 2;
2615         inq.add_length= 32;
2616         strcpy(inq.vendor,ha->oem_name);
2617         sprintf(inq.product,"Host Drive  #%02d",t);
2618         strcpy(inq.revision,"   ");
2619         gdth_copy_internal_data(hanum,scp,(char*)&inq,sizeof(gdth_inq_data));
2620         break;
2621
2622       case REQUEST_SENSE:
2623         TRACE2(("Request sense hdrive %d\n",t));
2624         sd.errorcode = 0x70;
2625         sd.segno     = 0x00;
2626         sd.key       = NO_SENSE;
2627         sd.info      = 0;
2628         sd.add_length= 0;
2629         gdth_copy_internal_data(hanum,scp,(char*)&sd,sizeof(gdth_sense_data));
2630         break;
2631
2632       case MODE_SENSE:
2633         TRACE2(("Mode sense hdrive %d\n",t));
2634         memset((char*)&mpd,0,sizeof(gdth_modep_data));
2635         mpd.hd.data_length = sizeof(gdth_modep_data);
2636         mpd.hd.dev_par     = (ha->hdr[t].devtype&2) ? 0x80:0;
2637         mpd.hd.bd_length   = sizeof(mpd.bd);
2638         mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2639         mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2640         mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2641         gdth_copy_internal_data(hanum,scp,(char*)&mpd,sizeof(gdth_modep_data));
2642         break;
2643
2644       case READ_CAPACITY:
2645         TRACE2(("Read capacity hdrive %d\n",t));
2646         if (ha->hdr[t].size > (ulong64)0xffffffff)
2647             rdc.last_block_no = 0xffffffff;
2648         else
2649             rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2650         rdc.block_length  = cpu_to_be32(SECTOR_SIZE);
2651         gdth_copy_internal_data(hanum,scp,(char*)&rdc,sizeof(gdth_rdcap_data));
2652         break;
2653
2654       case SERVICE_ACTION_IN:
2655         if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2656             (ha->cache_feat & GDT_64BIT)) {
2657             gdth_rdcap16_data rdc16;
2658
2659             TRACE2(("Read capacity (16) hdrive %d\n",t));
2660             rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2661             rdc16.block_length  = cpu_to_be32(SECTOR_SIZE);
2662             gdth_copy_internal_data(hanum,scp,(char*)&rdc16,sizeof(gdth_rdcap16_data));
2663         } else {
2664             scp->result = DID_ABORT << 16;
2665         }
2666         break;
2667
2668       default:
2669         TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2670         break;
2671     }
2672
2673     if (!scp->SCp.have_data_in)
2674         scp->SCp.have_data_in++;
2675     else
2676         return 1;
2677
2678     return 0;
2679 }
2680
2681 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
2682 {
2683     register gdth_ha_str *ha;
2684     register gdth_cmd_str *cmdp;
2685     struct scatterlist *sl;
2686     ulong32 cnt, blockcnt;
2687     ulong64 no, blockno;
2688     dma_addr_t phys_addr;
2689     int i, cmd_index, read_write, sgcnt, mode64;
2690     struct page *page;
2691     ulong offset;
2692
2693     ha = HADATA(gdth_ctr_tab[hanum]);
2694     cmdp = ha->pccb;
2695     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2696                  scp->cmnd[0],scp->cmd_len,hdrive));
2697
2698     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2699         return 0;
2700
2701     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2702     /* test for READ_16, WRITE_16 if !mode64 ? ---
2703        not required, should not occur due to error return on
2704        READ_CAPACITY_16 */
2705
2706     cmdp->Service = CACHESERVICE;
2707     cmdp->RequestBuffer = scp;
2708     /* search free command index */
2709     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2710         TRACE(("GDT: No free command index found\n"));
2711         return 0;
2712     }
2713     /* if it's the first command, set command semaphore */
2714     if (ha->cmd_cnt == 0)
2715         gdth_set_sema0(hanum);
2716
2717     /* fill command */
2718     read_write = 0;
2719     if (scp->SCp.sent_command != -1)
2720         cmdp->OpCode = scp->SCp.sent_command;   /* special cache cmd. */
2721     else if (scp->cmnd[0] == RESERVE)
2722         cmdp->OpCode = GDT_RESERVE_DRV;
2723     else if (scp->cmnd[0] == RELEASE)
2724         cmdp->OpCode = GDT_RELEASE_DRV;
2725     else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2726         if (scp->cmnd[4] & 1)                   /* prevent ? */
2727             cmdp->OpCode = GDT_MOUNT;
2728         else if (scp->cmnd[3] & 1)              /* removable drive ? */
2729             cmdp->OpCode = GDT_UNMOUNT;
2730         else
2731             cmdp->OpCode = GDT_FLUSH;
2732     } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2733                scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2734     ) {
2735         read_write = 1;
2736         if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2737                                    (ha->cache_feat & GDT_WR_THROUGH)))
2738             cmdp->OpCode = GDT_WRITE_THR;
2739         else
2740             cmdp->OpCode = GDT_WRITE;
2741     } else {
2742         read_write = 2;
2743         cmdp->OpCode = GDT_READ;
2744     }
2745
2746     cmdp->BoardNode = LOCALBOARD;
2747     if (mode64) {
2748         cmdp->u.cache64.DeviceNo = hdrive;
2749         cmdp->u.cache64.BlockNo  = 1;
2750         cmdp->u.cache64.sg_canz  = 0;
2751     } else {
2752         cmdp->u.cache.DeviceNo = hdrive;
2753         cmdp->u.cache.BlockNo  = 1;
2754         cmdp->u.cache.sg_canz  = 0;
2755     }
2756
2757     if (read_write) {
2758         if (scp->cmd_len == 16) {
2759             memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2760             blockno = be64_to_cpu(no);
2761             memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2762             blockcnt = be32_to_cpu(cnt);
2763         } else if (scp->cmd_len == 10) {
2764             memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2765             blockno = be32_to_cpu(no);
2766             memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2767             blockcnt = be16_to_cpu(cnt);
2768         } else {
2769             memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2770             blockno = be32_to_cpu(no) & 0x001fffffUL;
2771             blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2772         }
2773         if (mode64) {
2774             cmdp->u.cache64.BlockNo = blockno;
2775             cmdp->u.cache64.BlockCnt = blockcnt;
2776         } else {
2777             cmdp->u.cache.BlockNo = (ulong32)blockno;
2778             cmdp->u.cache.BlockCnt = blockcnt;
2779         }
2780
2781         if (scp->use_sg) {
2782             sl = (struct scatterlist *)scp->request_buffer;
2783             sgcnt = scp->use_sg;
2784             scp->SCp.Status = GDTH_MAP_SG;
2785             scp->SCp.Message = (read_write == 1 ?
2786                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2787             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2788             if (mode64) {
2789                 cmdp->u.cache64.DestAddr= (ulong64)-1;
2790                 cmdp->u.cache64.sg_canz = sgcnt;
2791                 for (i=0; i<sgcnt; ++i,++sl) {
2792                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2793 #ifdef GDTH_DMA_STATISTICS
2794                     if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2795                         ha->dma64_cnt++;
2796                     else
2797                         ha->dma32_cnt++;
2798 #endif
2799                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2800                 }
2801             } else {
2802                 cmdp->u.cache.DestAddr= 0xffffffff;
2803                 cmdp->u.cache.sg_canz = sgcnt;
2804                 for (i=0; i<sgcnt; ++i,++sl) {
2805                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2806 #ifdef GDTH_DMA_STATISTICS
2807                     ha->dma32_cnt++;
2808 #endif
2809                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2810                 }
2811             }
2812
2813 #ifdef GDTH_STATISTICS
2814             if (max_sg < (ulong32)sgcnt) {
2815                 max_sg = (ulong32)sgcnt;
2816                 TRACE3(("GDT: max_sg = %d\n",max_sg));
2817             }
2818 #endif
2819
2820         } else if (scp->request_bufflen) {
2821             scp->SCp.Status = GDTH_MAP_SINGLE;
2822             scp->SCp.Message = (read_write == 1 ?
2823                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2824             page = virt_to_page(scp->request_buffer);
2825             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
2826             phys_addr = pci_map_page(ha->pdev,page,offset,
2827                                      scp->request_bufflen,scp->SCp.Message);
2828             scp->SCp.dma_handle = phys_addr;
2829             if (mode64) {
2830                 if (ha->cache_feat & SCATTER_GATHER) {
2831                     cmdp->u.cache64.DestAddr = (ulong64)-1;
2832                     cmdp->u.cache64.sg_canz = 1;
2833                     cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr;
2834                     cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen;
2835                     cmdp->u.cache64.sg_lst[1].sg_len = 0;
2836                 } else {
2837                     cmdp->u.cache64.DestAddr  = phys_addr;
2838                     cmdp->u.cache64.sg_canz= 0;
2839                 }
2840             } else {
2841                 if (ha->cache_feat & SCATTER_GATHER) {
2842                     cmdp->u.cache.DestAddr = 0xffffffff;
2843                     cmdp->u.cache.sg_canz = 1;
2844                     cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr;
2845                     cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen;
2846                     cmdp->u.cache.sg_lst[1].sg_len = 0;
2847                 } else {
2848                     cmdp->u.cache.DestAddr  = phys_addr;
2849                     cmdp->u.cache.sg_canz= 0;
2850                 }
2851             }
2852         }
2853     }
2854     /* evaluate command size, check space */
2855     if (mode64) {
2856         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2857                cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2858                cmdp->u.cache64.sg_lst[0].sg_ptr,
2859                cmdp->u.cache64.sg_lst[0].sg_len));
2860         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2861                cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2862         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2863             (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2864     } else {
2865         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2866                cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2867                cmdp->u.cache.sg_lst[0].sg_ptr,
2868                cmdp->u.cache.sg_lst[0].sg_len));
2869         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2870                cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2871         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2872             (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2873     }
2874     if (ha->cmd_len & 3)
2875         ha->cmd_len += (4 - (ha->cmd_len & 3));
2876
2877     if (ha->cmd_cnt > 0) {
2878         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2879             ha->ic_all_size) {
2880             TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
2881             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2882             return 0;
2883         }
2884     }
2885
2886     /* copy command */
2887     gdth_copy_command(hanum);
2888     return cmd_index;
2889 }
2890
2891 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b)
2892 {
2893     register gdth_ha_str *ha;
2894     register gdth_cmd_str *cmdp;
2895     struct scatterlist *sl;
2896     ushort i;
2897     dma_addr_t phys_addr, sense_paddr;
2898     int cmd_index, sgcnt, mode64;
2899     unchar t,l;
2900     struct page *page;
2901     ulong offset;
2902
2903     ha = HADATA(gdth_ctr_tab[hanum]);
2904     t = scp->device->id;
2905     l = scp->device->lun;
2906     cmdp = ha->pccb;
2907     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
2908            scp->cmnd[0],b,t,l));
2909
2910     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2911         return 0;
2912
2913     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
2914
2915     cmdp->Service = SCSIRAWSERVICE;
2916     cmdp->RequestBuffer = scp;
2917     /* search free command index */
2918     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2919         TRACE(("GDT: No free command index found\n"));
2920         return 0;
2921     }
2922     /* if it's the first command, set command semaphore */
2923     if (ha->cmd_cnt == 0)
2924         gdth_set_sema0(hanum);
2925
2926     /* fill command */
2927     if (scp->SCp.sent_command != -1) {
2928         cmdp->OpCode           = scp->SCp.sent_command; /* special raw cmd. */
2929         cmdp->BoardNode        = LOCALBOARD;
2930         if (mode64) {
2931             cmdp->u.raw64.direction = (scp->SCp.phase >> 8);
2932             TRACE2(("special raw cmd 0x%x param 0x%x\n",
2933                     cmdp->OpCode, cmdp->u.raw64.direction));
2934             /* evaluate command size */
2935             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
2936         } else {
2937             cmdp->u.raw.direction  = (scp->SCp.phase >> 8);
2938             TRACE2(("special raw cmd 0x%x param 0x%x\n",
2939                     cmdp->OpCode, cmdp->u.raw.direction));
2940             /* evaluate command size */
2941             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
2942         }
2943
2944     } else {
2945         page = virt_to_page(scp->sense_buffer);
2946         offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
2947         sense_paddr = pci_map_page(ha->pdev,page,offset,
2948                                    16,PCI_DMA_FROMDEVICE);
2949         scp->SCp.buffer = (struct scatterlist *)((ulong32)sense_paddr);
2950         /* high part, if 64bit */
2951         scp->host_scribble = (char *)(ulong32)((ulong64)sense_paddr >> 32);
2952         cmdp->OpCode           = GDT_WRITE;             /* always */
2953         cmdp->BoardNode        = LOCALBOARD;
2954         if (mode64) {
2955             cmdp->u.raw64.reserved   = 0;
2956             cmdp->u.raw64.mdisc_time = 0;
2957             cmdp->u.raw64.mcon_time  = 0;
2958             cmdp->u.raw64.clen       = scp->cmd_len;
2959             cmdp->u.raw64.target     = t;
2960             cmdp->u.raw64.lun        = l;
2961             cmdp->u.raw64.bus        = b;
2962             cmdp->u.raw64.priority   = 0;
2963             cmdp->u.raw64.sdlen      = scp->request_bufflen;
2964             cmdp->u.raw64.sense_len  = 16;
2965             cmdp->u.raw64.sense_data = sense_paddr;
2966             cmdp->u.raw64.direction  =
2967                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2968             memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
2969         } else {
2970             cmdp->u.raw.reserved   = 0;
2971             cmdp->u.raw.mdisc_time = 0;
2972             cmdp->u.raw.mcon_time  = 0;
2973             cmdp->u.raw.clen       = scp->cmd_len;
2974             cmdp->u.raw.target     = t;
2975             cmdp->u.raw.lun        = l;
2976             cmdp->u.raw.bus        = b;
2977             cmdp->u.raw.priority   = 0;
2978             cmdp->u.raw.link_p     = 0;
2979             cmdp->u.raw.sdlen      = scp->request_bufflen;
2980             cmdp->u.raw.sense_len  = 16;
2981             cmdp->u.raw.sense_data = sense_paddr;
2982             cmdp->u.raw.direction  =
2983                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2984             memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
2985         }
2986
2987         if (scp->use_sg) {
2988             sl = (struct scatterlist *)scp->request_buffer;
2989             sgcnt = scp->use_sg;
2990             scp->SCp.Status = GDTH_MAP_SG;
2991             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
2992             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2993             if (mode64) {
2994                 cmdp->u.raw64.sdata = (ulong64)-1;
2995                 cmdp->u.raw64.sg_ranz = sgcnt;
2996                 for (i=0; i<sgcnt; ++i,++sl) {
2997                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2998 #ifdef GDTH_DMA_STATISTICS
2999                     if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
3000                         ha->dma64_cnt++;
3001                     else
3002                         ha->dma32_cnt++;
3003 #endif
3004                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
3005                 }
3006             } else {
3007                 cmdp->u.raw.sdata = 0xffffffff;
3008                 cmdp->u.raw.sg_ranz = sgcnt;
3009                 for (i=0; i<sgcnt; ++i,++sl) {
3010                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
3011 #ifdef GDTH_DMA_STATISTICS
3012                     ha->dma32_cnt++;
3013 #endif
3014                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
3015                 }
3016             }
3017
3018 #ifdef GDTH_STATISTICS
3019             if (max_sg < sgcnt) {
3020                 max_sg = sgcnt;
3021                 TRACE3(("GDT: max_sg = %d\n",sgcnt));
3022             }
3023 #endif
3024
3025         } else {
3026             scp->SCp.Status = GDTH_MAP_SINGLE;
3027             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3028             page = virt_to_page(scp->request_buffer);
3029             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3030             phys_addr = pci_map_page(ha->pdev,page,offset,
3031                                      scp->request_bufflen,scp->SCp.Message);
3032             scp->SCp.dma_handle = phys_addr;
3033
3034             if (mode64) {
3035                 if (ha->raw_feat & SCATTER_GATHER) {
3036                     cmdp->u.raw64.sdata  = (ulong64)-1;
3037                     cmdp->u.raw64.sg_ranz= 1;
3038                     cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr;
3039                     cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen;
3040                     cmdp->u.raw64.sg_lst[1].sg_len = 0;
3041                 } else {
3042                     cmdp->u.raw64.sdata  = phys_addr;
3043                     cmdp->u.raw64.sg_ranz= 0;
3044                 }
3045             } else {
3046                 if (ha->raw_feat & SCATTER_GATHER) {
3047                     cmdp->u.raw.sdata  = 0xffffffff;
3048                     cmdp->u.raw.sg_ranz= 1;
3049                     cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr;
3050                     cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen;
3051                     cmdp->u.raw.sg_lst[1].sg_len = 0;
3052                 } else {
3053                     cmdp->u.raw.sdata  = phys_addr;
3054                     cmdp->u.raw.sg_ranz= 0;
3055                 }
3056             }
3057         }
3058         if (mode64) {
3059             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3060                    cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
3061                    cmdp->u.raw64.sg_lst[0].sg_ptr,
3062                    cmdp->u.raw64.sg_lst[0].sg_len));
3063             /* evaluate command size */
3064             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
3065                 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
3066         } else {
3067             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3068                    cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
3069                    cmdp->u.raw.sg_lst[0].sg_ptr,
3070                    cmdp->u.raw.sg_lst[0].sg_len));
3071             /* evaluate command size */
3072             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
3073                 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
3074         }
3075     }
3076     /* check space */
3077     if (ha->cmd_len & 3)
3078         ha->cmd_len += (4 - (ha->cmd_len & 3));
3079
3080     if (ha->cmd_cnt > 0) {
3081         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3082             ha->ic_all_size) {
3083             TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
3084             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3085             return 0;
3086         }
3087     }
3088
3089     /* copy command */
3090     gdth_copy_command(hanum);
3091     return cmd_index;
3092 }
3093
3094 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp)
3095 {
3096     register gdth_ha_str *ha;
3097     register gdth_cmd_str *cmdp;
3098     int cmd_index;
3099
3100     ha  = HADATA(gdth_ctr_tab[hanum]);
3101     cmdp= ha->pccb;
3102     TRACE2(("gdth_special_cmd(): "));
3103
3104     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3105         return 0;
3106
3107     memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str));
3108     cmdp->RequestBuffer = scp;
3109
3110     /* search free command index */
3111     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3112         TRACE(("GDT: No free command index found\n"));
3113         return 0;
3114     }
3115
3116     /* if it's the first command, set command semaphore */
3117     if (ha->cmd_cnt == 0)
3118        gdth_set_sema0(hanum);
3119
3120     /* evaluate command size, check space */
3121     if (cmdp->OpCode == GDT_IOCTL) {
3122         TRACE2(("IOCTL\n"));
3123         ha->cmd_len =
3124             GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
3125     } else if (cmdp->Service == CACHESERVICE) {
3126         TRACE2(("cache command %d\n",cmdp->OpCode));
3127         if (ha->cache_feat & GDT_64BIT)
3128             ha->cmd_len =
3129                 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
3130         else
3131             ha->cmd_len =
3132                 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
3133     } else if (cmdp->Service == SCSIRAWSERVICE) {
3134         TRACE2(("raw command %d\n",cmdp->OpCode));
3135         if (ha->raw_feat & GDT_64BIT)
3136             ha->cmd_len =
3137                 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
3138         else
3139             ha->cmd_len =
3140                 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
3141     }
3142
3143     if (ha->cmd_len & 3)
3144         ha->cmd_len += (4 - (ha->cmd_len & 3));
3145
3146     if (ha->cmd_cnt > 0) {
3147         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3148             ha->ic_all_size) {
3149             TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
3150             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3151             return 0;
3152         }
3153     }
3154
3155     /* copy command */
3156     gdth_copy_command(hanum);
3157     return cmd_index;
3158 }
3159
3160
3161 /* Controller event handling functions */
3162 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
3163                                       ushort idx, gdth_evt_data *evt)
3164 {
3165     gdth_evt_str *e;
3166     struct timeval tv;
3167
3168     /* no GDTH_LOCK_HA() ! */
3169     TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
3170     if (source == 0)                        /* no source -> no event */
3171         return NULL;
3172
3173     if (ebuffer[elastidx].event_source == source &&
3174         ebuffer[elastidx].event_idx == idx &&
3175         ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
3176             !memcmp((char *)&ebuffer[elastidx].event_data.eu,
3177             (char *)&evt->eu, evt->size)) ||
3178         (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
3179             !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
3180             (char *)&evt->event_string)))) {
3181         e = &ebuffer[elastidx];
3182         do_gettimeofday(&tv);
3183         e->last_stamp = tv.tv_sec;
3184         ++e->same_count;
3185     } else {
3186         if (ebuffer[elastidx].event_source != 0) {  /* entry not free ? */
3187             ++elastidx;
3188             if (elastidx == MAX_EVENTS)
3189                 elastidx = 0;
3190             if (elastidx == eoldidx) {              /* reached mark ? */
3191                 ++eoldidx;
3192                 if (eoldidx == MAX_EVENTS)
3193                     eoldidx = 0;
3194             }
3195         }
3196         e = &ebuffer[elastidx];
3197         e->event_source = source;
3198         e->event_idx = idx;
3199         do_gettimeofday(&tv);
3200         e->first_stamp = e->last_stamp = tv.tv_sec;
3201         e->same_count = 1;
3202         e->event_data = *evt;
3203         e->application = 0;
3204     }
3205     return e;
3206 }
3207
3208 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
3209 {
3210     gdth_evt_str *e;
3211     int eindex;
3212     ulong flags;
3213
3214     TRACE2(("gdth_read_event() handle %d\n", handle));
3215     spin_lock_irqsave(&ha->smp_lock, flags);
3216     if (handle == -1)
3217         eindex = eoldidx;
3218     else
3219         eindex = handle;
3220     estr->event_source = 0;
3221
3222     if (eindex >= MAX_EVENTS) {
3223         spin_unlock_irqrestore(&ha->smp_lock, flags);
3224         return eindex;
3225     }
3226     e = &ebuffer[eindex];
3227     if (e->event_source != 0) {
3228         if (eindex != elastidx) {
3229             if (++eindex == MAX_EVENTS)
3230                 eindex = 0;
3231         } else {
3232             eindex = -1;
3233         }
3234         memcpy(estr, e, sizeof(gdth_evt_str));
3235     }
3236     spin_unlock_irqrestore(&ha->smp_lock, flags);
3237     return eindex;
3238 }
3239
3240 static void gdth_readapp_event(gdth_ha_str *ha,
3241                                unchar application, gdth_evt_str *estr)
3242 {
3243     gdth_evt_str *e;
3244     int eindex;
3245     ulong flags;
3246     unchar found = FALSE;
3247
3248     TRACE2(("gdth_readapp_event() app. %d\n", application));
3249     spin_lock_irqsave(&ha->smp_lock, flags);
3250     eindex = eoldidx;
3251     for (;;) {
3252         e = &ebuffer[eindex];
3253         if (e->event_source == 0)
3254             break;
3255         if ((e->application & application) == 0) {
3256             e->application |= application;
3257             found = TRUE;
3258             break;
3259         }
3260         if (eindex == elastidx)
3261             break;
3262         if (++eindex == MAX_EVENTS)
3263             eindex = 0;
3264     }
3265     if (found)
3266         memcpy(estr, e, sizeof(gdth_evt_str));
3267     else
3268         estr->event_source = 0;
3269     spin_unlock_irqrestore(&ha->smp_lock, flags);
3270 }
3271
3272 static void gdth_clear_events(void)
3273 {
3274     TRACE(("gdth_clear_events()"));
3275
3276     eoldidx = elastidx = 0;
3277     ebuffer[0].event_source = 0;
3278 }
3279
3280
3281 /* SCSI interface functions */
3282
3283 static irqreturn_t gdth_interrupt(int irq,void *dev_id,struct pt_regs *regs)
3284 {
3285     gdth_ha_str *ha2 = (gdth_ha_str *)dev_id;
3286     register gdth_ha_str *ha;
3287     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
3288     gdt6_dpram_str __iomem *dp6_ptr;
3289     gdt2_dpram_str __iomem *dp2_ptr;
3290     Scsi_Cmnd *scp;
3291     int hanum, rval, i;
3292     unchar IStatus;
3293     ushort Service;
3294     ulong flags = 0;
3295 #ifdef INT_COAL
3296     int coalesced = FALSE;
3297     int next = FALSE;
3298     gdth_coal_status *pcs = NULL;
3299     int act_int_coal = 0;
3300 #endif
3301
3302     TRACE(("gdth_interrupt() IRQ %d\n",irq));
3303
3304     /* if polling and not from gdth_wait() -> return */
3305     if (gdth_polling) {
3306         if (!gdth_from_wait) {
3307             return IRQ_HANDLED;
3308         }
3309     }
3310
3311     if (!gdth_polling)
3312         spin_lock_irqsave(&ha2->smp_lock, flags);
3313     wait_index = 0;
3314
3315     /* search controller */
3316     if ((hanum = gdth_get_status(&IStatus,irq)) == -1) {
3317         /* spurious interrupt */
3318         if (!gdth_polling)
3319             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3320             return IRQ_HANDLED;
3321     }
3322     ha = HADATA(gdth_ctr_tab[hanum]);
3323
3324 #ifdef GDTH_STATISTICS
3325     ++act_ints;
3326 #endif
3327
3328 #ifdef INT_COAL
3329     /* See if the fw is returning coalesced status */
3330     if (IStatus == COALINDEX) {
3331         /* Coalesced status.  Setup the initial status
3332            buffer pointer and flags */
3333         pcs = ha->coal_stat;
3334         coalesced = TRUE;
3335         next = TRUE;
3336     }
3337
3338     do {
3339         if (coalesced) {
3340             /* For coalesced requests all status
3341                information is found in the status buffer */
3342             IStatus = (unchar)(pcs->status & 0xff);
3343         }
3344 #endif
3345
3346         if (ha->type == GDT_EISA) {
3347             if (IStatus & 0x80) {                       /* error flag */
3348                 IStatus &= ~0x80;
3349                 ha->status = inw(ha->bmic + MAILBOXREG+8);
3350                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3351             } else                                      /* no error */
3352                 ha->status = S_OK;
3353             ha->info = inl(ha->bmic + MAILBOXREG+12);
3354             ha->service = inw(ha->bmic + MAILBOXREG+10);
3355             ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3356
3357             outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
3358             outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
3359         } else if (ha->type == GDT_ISA) {
3360             dp2_ptr = ha->brd;
3361             if (IStatus & 0x80) {                       /* error flag */
3362                 IStatus &= ~0x80;
3363                 ha->status = gdth_readw(&dp2_ptr->u.ic.Status);
3364                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3365             } else                                      /* no error */
3366                 ha->status = S_OK;
3367             ha->info = gdth_readl(&dp2_ptr->u.ic.Info[0]);
3368             ha->service = gdth_readw(&dp2_ptr->u.ic.Service);
3369             ha->info2 = gdth_readl(&dp2_ptr->u.ic.Info[1]);
3370
3371             gdth_writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3372             gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3373             gdth_writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
3374         } else if (ha->type == GDT_PCI) {
3375             dp6_ptr = ha->brd;
3376             if (IStatus & 0x80) {                       /* error flag */
3377                 IStatus &= ~0x80;
3378                 ha->status = gdth_readw(&dp6_ptr->u.ic.Status);
3379                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3380             } else                                      /* no error */
3381                 ha->status = S_OK;
3382             ha->info = gdth_readl(&dp6_ptr->u.ic.Info[0]);
3383             ha->service = gdth_readw(&dp6_ptr->u.ic.Service);
3384             ha->info2 = gdth_readl(&dp6_ptr->u.ic.Info[1]);
3385
3386             gdth_writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3387             gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3388             gdth_writeb(0, &dp6_ptr->io.Sema1);     /* reset status semaphore */
3389         } else if (ha->type == GDT_PCINEW) {
3390             if (IStatus & 0x80) {                       /* error flag */
3391                 IStatus &= ~0x80;
3392                 ha->status = inw(PTR2USHORT(&ha->plx->status));
3393                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3394             } else
3395                 ha->status = S_OK;
3396             ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3397             ha->service = inw(PTR2USHORT(&ha->plx->service));
3398             ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3399
3400             outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3401             outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3402         } else if (ha->type == GDT_PCIMPR) {
3403             dp6m_ptr = ha->brd;
3404             if (IStatus & 0x80) {                       /* error flag */
3405                 IStatus &= ~0x80;
3406 #ifdef INT_COAL
3407                 if (coalesced)
3408                     ha->status = pcs->ext_status && 0xffff;
3409                 else
3410 #endif
3411                     ha->status = gdth_readw(&dp6m_ptr->i960r.status);
3412                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3413             } else                                      /* no error */
3414                 ha->status = S_OK;
3415 #ifdef INT_COAL
3416             /* get information */
3417             if (coalesced) {
3418                 ha->info = pcs->info0;
3419                 ha->info2 = pcs->info1;
3420                 ha->service = (pcs->ext_status >> 16) && 0xffff;
3421             } else
3422 #endif
3423             {
3424                 ha->info = gdth_readl(&dp6m_ptr->i960r.info[0]);
3425                 ha->service = gdth_readw(&dp6m_ptr->i960r.service);
3426                 ha->info2 = gdth_readl(&dp6m_ptr->i960r.info[1]);
3427             }
3428             /* event string */
3429             if (IStatus == ASYNCINDEX) {
3430                 if (ha->service != SCREENSERVICE &&
3431                     (ha->fw_vers & 0xff) >= 0x1a) {
3432                     ha->dvr.severity = gdth_readb
3433                         (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3434                     for (i = 0; i < 256; ++i) {
3435                         ha->dvr.event_string[i] = gdth_readb
3436                             (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3437                         if (ha->dvr.event_string[i] == 0)
3438                             break;
3439                     }
3440                 }
3441             }
3442 #ifdef INT_COAL
3443             /* Make sure that non coalesced interrupts get cleared
3444                before being handled by gdth_async_event/gdth_sync_event */
3445             if (!coalesced)
3446 #endif
3447             {
3448                 gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3449                 gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3450             }
3451         } else {
3452             TRACE2(("gdth_interrupt() unknown controller type\n"));
3453             if (!gdth_polling)
3454                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3455             return IRQ_HANDLED;
3456         }
3457
3458         TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3459                IStatus,ha->status,ha->info));
3460
3461         if (gdth_from_wait) {
3462             wait_hanum = hanum;
3463             wait_index = (int)IStatus;
3464         }
3465
3466         if (IStatus == ASYNCINDEX) {
3467             TRACE2(("gdth_interrupt() async. event\n"));
3468             gdth_async_event(hanum);
3469             if (!gdth_polling)
3470                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3471             gdth_next(hanum);
3472             return IRQ_HANDLED;
3473         }
3474
3475         if (IStatus == SPEZINDEX) {
3476             TRACE2(("Service unknown or not initialized !\n"));
3477             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3478             ha->dvr.eu.driver.ionode = hanum;
3479             gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3480             if (!gdth_polling)
3481                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3482             return IRQ_HANDLED;
3483         }
3484         scp     = ha->cmd_tab[IStatus-2].cmnd;
3485         Service = ha->cmd_tab[IStatus-2].service;
3486         ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3487         if (scp == UNUSED_CMND) {
3488             TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3489             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3490             ha->dvr.eu.driver.ionode = hanum;
3491             ha->dvr.eu.driver.index = IStatus;
3492             gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3493             if (!gdth_polling)
3494                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3495             return IRQ_HANDLED;
3496         }
3497         if (scp == INTERNAL_CMND) {
3498             TRACE(("gdth_interrupt() answer to internal command\n"));
3499             if (!gdth_polling)
3500                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3501             return IRQ_HANDLED;
3502         }
3503
3504         TRACE(("gdth_interrupt() sync. status\n"));
3505         rval = gdth_sync_event(hanum,Service,IStatus,scp);
3506         if (!gdth_polling)
3507             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3508         if (rval == 2) {
3509             gdth_putq(hanum,scp,scp->SCp.this_residual);
3510         } else if (rval == 1) {
3511             scp->scsi_done(scp);
3512         }
3513
3514 #ifdef INT_COAL
3515         if (coalesced) {
3516             /* go to the next status in the status buffer */
3517             ++pcs;
3518 #ifdef GDTH_STATISTICS
3519             ++act_int_coal;
3520             if (act_int_coal > max_int_coal) {
3521                 max_int_coal = act_int_coal;
3522                 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3523             }
3524 #endif
3525             /* see if there is another status */
3526             if (pcs->status == 0)
3527                 /* Stop the coalesce loop */
3528                 next = FALSE;
3529         }
3530     } while (next);
3531
3532     /* coalescing only for new GDT_PCIMPR controllers available */
3533     if (ha->type == GDT_PCIMPR && coalesced) {
3534         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3535         gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3536     }
3537 #endif
3538
3539     gdth_next(hanum);
3540     return IRQ_HANDLED;
3541 }
3542
3543 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
3544 {
3545     register gdth_ha_str *ha;
3546     gdth_msg_str *msg;
3547     gdth_cmd_str *cmdp;
3548     unchar b, t;
3549
3550     ha   = HADATA(gdth_ctr_tab[hanum]);
3551     cmdp = ha->pccb;
3552     TRACE(("gdth_sync_event() serv %d status %d\n",
3553            service,ha->status));
3554
3555     if (service == SCREENSERVICE) {
3556         msg  = ha->pmsg;
3557         TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3558                msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3559         if (msg->msg_len > MSGLEN+1)
3560             msg->msg_len = MSGLEN+1;
3561         if (msg->msg_len)
3562             if (!(msg->msg_answer && msg->msg_ext)) {
3563                 msg->msg_text[msg->msg_len] = '\0';
3564                 printk("%s",msg->msg_text);
3565             }
3566
3567         if (msg->msg_ext && !msg->msg_answer) {
3568             while (gdth_test_busy(hanum))
3569                 gdth_delay(0);
3570             cmdp->Service       = SCREENSERVICE;
3571             cmdp->RequestBuffer = SCREEN_CMND;
3572             gdth_get_cmd_index(hanum);
3573             gdth_set_sema0(hanum);
3574             cmdp->OpCode        = GDT_READ;
3575             cmdp->BoardNode     = LOCALBOARD;
3576             cmdp->u.screen.reserved  = 0;
3577             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3578             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3579             ha->cmd_offs_dpmem = 0;
3580             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3581                 + sizeof(ulong64);
3582             ha->cmd_cnt = 0;
3583             gdth_copy_command(hanum);
3584             gdth_release_event(hanum);
3585             return 0;
3586         }
3587
3588         if (msg->msg_answer && msg->msg_alen) {
3589             /* default answers (getchar() not possible) */
3590             if (msg->msg_alen == 1) {
3591                 msg->msg_alen = 0;
3592                 msg->msg_len = 1;
3593                 msg->msg_text[0] = 0;
3594             } else {
3595                 msg->msg_alen -= 2;
3596                 msg->msg_len = 2;
3597                 msg->msg_text[0] = 1;
3598                 msg->msg_text[1] = 0;
3599             }
3600             msg->msg_ext    = 0;
3601             msg->msg_answer = 0;
3602             while (gdth_test_busy(hanum))
3603                 gdth_delay(0);
3604             cmdp->Service       = SCREENSERVICE;
3605             cmdp->RequestBuffer = SCREEN_CMND;
3606             gdth_get_cmd_index(hanum);
3607             gdth_set_sema0(hanum);
3608             cmdp->OpCode        = GDT_WRITE;
3609             cmdp->BoardNode     = LOCALBOARD;
3610             cmdp->u.screen.reserved  = 0;
3611             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3612             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3613             ha->cmd_offs_dpmem = 0;
3614             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3615                 + sizeof(ulong64);
3616             ha->cmd_cnt = 0;
3617             gdth_copy_command(hanum);
3618             gdth_release_event(hanum);
3619             return 0;
3620         }
3621         printk("\n");
3622
3623     } else {
3624         b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
3625         t = scp->device->id;
3626         if (scp->SCp.sent_command == -1 && b != ha->virt_bus) {
3627             ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3628         }
3629         /* cache or raw service */
3630         if (ha->status == S_BSY) {
3631             TRACE2(("Controller busy -> retry !\n"));
3632             if (scp->SCp.sent_command == GDT_MOUNT)
3633                 scp->SCp.sent_command = GDT_CLUST_INFO;
3634             /* retry */
3635             return 2;
3636         }
3637         if (scp->SCp.Status == GDTH_MAP_SG)
3638             pci_unmap_sg(ha->pdev,scp->request_buffer,
3639                          scp->use_sg,scp->SCp.Message);
3640         else if (scp->SCp.Status == GDTH_MAP_SINGLE)
3641             pci_unmap_page(ha->pdev,scp->SCp.dma_handle,
3642                            scp->request_bufflen,scp->SCp.Message);
3643         if (scp->SCp.buffer) {
3644             dma_addr_t addr;
3645             addr = (dma_addr_t)(ulong32)scp->SCp.buffer;
3646             if (scp->host_scribble)
3647                 addr += (dma_addr_t)((ulong64)(ulong32)scp->host_scribble << 32);
3648             pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE);
3649         }
3650
3651         if (ha->status == S_OK) {
3652             scp->SCp.Status = S_OK;
3653             scp->SCp.Message = ha->info;
3654             if (scp->SCp.sent_command != -1) {
3655                 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3656                         scp->SCp.sent_command));
3657                 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3658                 if (scp->SCp.sent_command == GDT_CLUST_INFO) {
3659                     ha->hdr[t].cluster_type = (unchar)ha->info;
3660                     if (!(ha->hdr[t].cluster_type &
3661                         CLUSTER_MOUNTED)) {
3662                         /* NOT MOUNTED -> MOUNT */
3663                         scp->SCp.sent_command = GDT_MOUNT;
3664                         if (ha->hdr[t].cluster_type &
3665                             CLUSTER_RESERVED) {
3666                             /* cluster drive RESERVED (on the other node) */
3667                             scp->SCp.phase = -2;      /* reservation conflict */
3668                         }
3669                     } else {
3670                         scp->SCp.sent_command = -1;
3671                     }
3672                 } else {
3673                     if (scp->SCp.sent_command == GDT_MOUNT) {
3674                         ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3675                         ha->hdr[t].media_changed = TRUE;
3676                     } else if (scp->SCp.sent_command == GDT_UNMOUNT) {
3677                         ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3678                         ha->hdr[t].media_changed = TRUE;
3679                     }
3680                     scp->SCp.sent_command = -1;
3681                 }
3682                 /* retry */
3683                 scp->SCp.this_residual = HIGH_PRI;
3684                 return 2;
3685             } else {
3686                 /* RESERVE/RELEASE ? */
3687                 if (scp->cmnd[0] == RESERVE) {
3688                     ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3689                 } else if (scp->cmnd[0] == RELEASE) {
3690                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3691                 }
3692                 scp->result = DID_OK << 16;
3693                 scp->sense_buffer[0] = 0;
3694             }
3695         } else {
3696             scp->SCp.Status = ha->status;
3697             scp->SCp.Message = ha->info;
3698
3699             if (scp->SCp.sent_command != -1) {
3700                 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3701                         scp->SCp.sent_command, ha->status));
3702                 if (scp->SCp.sent_command == GDT_SCAN_START ||
3703                     scp->SCp.sent_command == GDT_SCAN_END) {
3704                     scp->SCp.sent_command = -1;
3705                     /* retry */
3706                     scp->SCp.this_residual = HIGH_PRI;
3707                     return 2;
3708                 }
3709                 memset((char*)scp->sense_buffer,0,16);
3710                 scp->sense_buffer[0] = 0x70;
3711                 scp->sense_buffer[2] = NOT_READY;
3712                 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3713             } else if (service == CACHESERVICE) {
3714                 if (ha->status == S_CACHE_UNKNOWN &&
3715                     (ha->hdr[t].cluster_type &
3716                      CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3717                     /* bus reset -> force GDT_CLUST_INFO */
3718                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3719                 }
3720                 memset((char*)scp->sense_buffer,0,16);
3721                 if (ha->status == (ushort)S_CACHE_RESERV) {
3722                     scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3723                 } else {
3724                     scp->sense_buffer[0] = 0x70;
3725                     scp->sense_buffer[2] = NOT_READY;
3726                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3727                 }
3728                 if (scp->done != gdth_scsi_done) {
3729                     ha->dvr.size = sizeof(ha->dvr.eu.sync);
3730                     ha->dvr.eu.sync.ionode  = hanum;
3731                     ha->dvr.eu.sync.service = service;
3732                     ha->dvr.eu.sync.status  = ha->status;
3733                     ha->dvr.eu.sync.info    = ha->info;
3734                     ha->dvr.eu.sync.hostdrive = t;
3735                     if (ha->status >= 0x8000)
3736                         gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3737                     else
3738                         gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3739                 }
3740             } else {
3741                 /* sense buffer filled from controller firmware (DMA) */
3742                 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3743                     scp->result = DID_BAD_TARGET << 16;
3744                 } else {
3745                     scp->result = (DID_OK << 16) | ha->info;
3746                 }
3747             }
3748         }
3749         if (!scp->SCp.have_data_in)
3750             scp->SCp.have_data_in++;
3751         else
3752             return 1;
3753     }
3754
3755     return 0;
3756 }
3757
3758 static char *async_cache_tab[] = {
3759 /* 0*/  "\011\000\002\002\002\004\002\006\004"
3760         "GDT HA %u, service %u, async. status %u/%lu unknown",
3761 /* 1*/  "\011\000\002\002\002\004\002\006\004"
3762         "GDT HA %u, service %u, async. status %u/%lu unknown",
3763 /* 2*/  "\005\000\002\006\004"
3764         "GDT HA %u, Host Drive %lu not ready",
3765 /* 3*/  "\005\000\002\006\004"
3766         "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",
3767 /* 4*/  "\005\000\002\006\004"
3768         "GDT HA %u, mirror update on Host Drive %lu failed",
3769 /* 5*/  "\005\000\002\006\004"
3770         "GDT HA %u, Mirror Drive %lu failed",
3771 /* 6*/  "\005\000\002\006\004"
3772         "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",
3773 /* 7*/  "\005\000\002\006\004"
3774         "GDT HA %u, Host Drive %lu write protected",
3775 /* 8*/  "\005\000\002\006\004"
3776         "GDT HA %u, media changed in Host Drive %lu",
3777 /* 9*/  "\005\000\002\006\004"
3778         "GDT HA %u, Host Drive %lu is offline",
3779 /*10*/  "\005\000\002\006\004"
3780         "GDT HA %u, media change of Mirror Drive %lu",
3781 /*11*/  "\005\000\002\006\004"
3782         "GDT HA %u, Mirror Drive %lu is write protected",
3783 /*12*/  "\005\000\002\006\004"
3784         "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3785 /*13*/  "\007\000\002\006\002\010\002"
3786         "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3787 /*14*/  "\005\000\002\006\002"
3788         "GDT HA %u, Array Drive %u: FAIL state entered",
3789 /*15*/  "\005\000\002\006\002"
3790         "GDT HA %u, Array Drive %u: error",
3791 /*16*/  "\007\000\002\006\002\010\002"
3792         "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3793 /*17*/  "\005\000\002\006\002"
3794         "GDT HA %u, Array Drive %u: parity build failed",
3795 /*18*/  "\005\000\002\006\002"
3796         "GDT HA %u, Array Drive %u: drive rebuild failed",
3797 /*19*/  "\005\000\002\010\002"
3798         "GDT HA %u, Test of Hot Fix %u failed",
3799 /*20*/  "\005\000\002\006\002"
3800         "GDT HA %u, Array Drive %u: drive build finished successfully",
3801 /*21*/  "\005\000\002\006\002"
3802         "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3803 /*22*/  "\007\000\002\006\002\010\002"
3804         "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3805 /*23*/  "\005\000\002\006\002"
3806         "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3807 /*24*/  "\005\000\002\010\002"
3808         "GDT HA %u, mirror update on Cache Drive %u completed",
3809 /*25*/  "\005\000\002\010\002"
3810         "GDT HA %u, mirror update on Cache Drive %lu failed",
3811 /*26*/  "\005\000\002\006\002"
3812         "GDT HA %u, Array Drive %u: drive rebuild started",
3813 /*27*/  "\005\000\002\012\001"
3814         "GDT HA %u, Fault bus %u: SHELF OK detected",
3815 /*28*/  "\005\000\002\012\001"
3816         "GDT HA %u, Fault bus %u: SHELF not OK detected",
3817 /*29*/  "\007\000\002\012\001\013\001"
3818         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3819 /*30*/  "\007\000\002\012\001\013\001"
3820         "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3821 /*31*/  "\007\000\002\012\001\013\001"
3822         "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3823 /*32*/  "\007\000\002\012\001\013\001"
3824         "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3825 /*33*/  "\007\000\002\012\001\013\001"
3826         "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3827 /*34*/  "\011\000\002\012\001\013\001\006\004"
3828         "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3829 /*35*/  "\007\000\002\012\001\013\001"
3830         "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3831 /*36*/  "\007\000\002\012\001\013\001"
3832         "GDT HA %u, Fault bus %u, ID %u: disk not available",
3833 /*37*/  "\007\000\002\012\001\006\004"
3834         "GDT HA %u, Fault bus %u: swap detected (%lu)",
3835 /*38*/  "\007\000\002\012\001\013\001"
3836         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3837 /*39*/  "\007\000\002\012\001\013\001"
3838         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3839 /*40*/  "\007\000\002\012\001\013\001"
3840         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3841 /*41*/  "\007\000\002\012\001\013\001"
3842         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3843 /*42*/  "\005\000\002\006\002"
3844         "GDT HA %u, Array Drive %u: drive build started",
3845 /*43*/  "\003\000\002"
3846         "GDT HA %u, DRAM parity error detected",
3847 /*44*/  "\005\000\002\006\002"
3848         "GDT HA %u, Mirror Drive %u: update started",
3849 /*45*/  "\007\000\002\006\002\010\002"
3850         "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3851 /*46*/  "\005\000\002\006\002"
3852         "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3853 /*47*/  "\005\000\002\006\002"
3854         "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3855 /*48*/  "\005\000\002\006\002"
3856         "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3857 /*49*/  "\005\000\002\006\002"
3858         "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3859 /*50*/  "\007\000\002\012\001\013\001"
3860         "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3861 /*51*/  "\005\000\002\006\002"
3862         "GDT HA %u, Array Drive %u: expand started",
3863 /*52*/  "\005\000\002\006\002"
3864         "GDT HA %u, Array Drive %u: expand finished successfully",
3865 /*53*/  "\005\000\002\006\002"
3866         "GDT HA %u, Array Drive %u: expand failed",
3867 /*54*/  "\003\000\002"
3868         "GDT HA %u, CPU temperature critical",
3869 /*55*/  "\003\000\002"
3870         "GDT HA %u, CPU temperature OK",
3871 /*56*/  "\005\000\002\006\004"
3872         "GDT HA %u, Host drive %lu created",
3873 /*57*/  "\005\000\002\006\002"
3874         "GDT HA %u, Array Drive %u: expand restarted",
3875 /*58*/  "\005\000\002\006\002"
3876         "GDT HA %u, Array Drive %u: expand stopped",
3877 /*59*/  "\005\000\002\010\002"
3878         "GDT HA %u, Mirror Drive %u: drive build quited",
3879 /*60*/  "\005\000\002\006\002"
3880         "GDT HA %u, Array Drive %u: parity build quited",
3881 /*61*/  "\005\000\002\006\002"
3882         "GDT HA %u, Array Drive %u: drive rebuild quited",
3883 /*62*/  "\005\000\002\006\002"
3884         "GDT HA %u, Array Drive %u: parity verify started",
3885 /*63*/  "\005\000\002\006\002"
3886         "GDT HA %u, Array Drive %u: parity verify done",
3887 /*64*/  "\005\000\002\006\002"
3888         "GDT HA %u, Array Drive %u: parity verify failed",
3889 /*65*/  "\005\000\002\006\002"
3890         "GDT HA %u, Array Drive %u: parity error detected",
3891 /*66*/  "\005\000\002\006\002"
3892         "GDT HA %u, Array Drive %u: parity verify quited",
3893 /*67*/  "\005\000\002\006\002"
3894         "GDT HA %u, Host Drive %u reserved",
3895 /*68*/  "\005\000\002\006\002"
3896         "GDT HA %u, Host Drive %u mounted and released",
3897 /*69*/  "\005\000\002\006\002"
3898         "GDT HA %u, Host Drive %u released",
3899 /*70*/  "\003\000\002"
3900         "GDT HA %u, DRAM error detected and corrected with ECC",
3901 /*71*/  "\003\000\002"
3902         "GDT HA %u, Uncorrectable DRAM error detected with ECC",
3903 /*72*/  "\011\000\002\012\001\013\001\014\001"
3904         "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
3905 /*73*/  "\005\000\002\006\002"
3906         "GDT HA %u, Host drive %u resetted locally",
3907 /*74*/  "\005\000\002\006\002"
3908         "GDT HA %u, Host drive %u resetted remotely",
3909 /*75*/  "\003\000\002"
3910         "GDT HA %u, async. status 75 unknown",
3911 };
3912
3913
3914 static int gdth_async_event(int hanum)
3915 {
3916     gdth_ha_str *ha;
3917     gdth_cmd_str *cmdp;
3918     int cmd_index;
3919
3920     ha  = HADATA(gdth_ctr_tab[hanum]);
3921     cmdp= ha->pccb;
3922     TRACE2(("gdth_async_event() ha %d serv %d\n",
3923             hanum,ha->service));
3924
3925     if (ha->service == SCREENSERVICE) {
3926         if (ha->status == MSG_REQUEST) {
3927             while (gdth_test_busy(hanum))
3928                 gdth_delay(0);
3929             cmdp->Service       = SCREENSERVICE;
3930             cmdp->RequestBuffer = SCREEN_CMND;
3931             cmd_index = gdth_get_cmd_index(hanum);
3932             gdth_set_sema0(hanum);
3933             cmdp->OpCode        = GDT_READ;
3934             cmdp->BoardNode     = LOCALBOARD;
3935             cmdp->u.screen.reserved  = 0;
3936             cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
3937             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3938             ha->cmd_offs_dpmem = 0;
3939             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3940                 + sizeof(ulong64);
3941             ha->cmd_cnt = 0;
3942             gdth_copy_command(hanum);
3943             if (ha->type == GDT_EISA)
3944                 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
3945             else if (ha->type == GDT_ISA)
3946                 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
3947             else
3948                 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
3949                        (ushort)((ha->brd_phys>>3)&0x1f));
3950             gdth_release_event(hanum);
3951         }
3952
3953     } else {
3954         if (ha->type == GDT_PCIMPR &&
3955             (ha->fw_vers & 0xff) >= 0x1a) {
3956             ha->dvr.size = 0;
3957             ha->dvr.eu.async.ionode = hanum;
3958             ha->dvr.eu.async.status  = ha->status;
3959             /* severity and event_string already set! */
3960         } else {
3961             ha->dvr.size = sizeof(ha->dvr.eu.async);
3962             ha->dvr.eu.async.ionode   = hanum;
3963             ha->dvr.eu.async.service = ha->service;
3964             ha->dvr.eu.async.status  = ha->status;
3965             ha->dvr.eu.async.info    = ha->info;
3966             *(ulong32 *)ha->dvr.eu.async.scsi_coord  = ha->info2;
3967         }
3968         gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
3969         gdth_log_event( &ha->dvr, NULL );
3970
3971         /* new host drive from expand? */
3972         if (ha->service == CACHESERVICE && ha->status == 56) {
3973             TRACE2(("gdth_async_event(): new host drive %d created\n",
3974                     (ushort)ha->info));
3975             /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
3976         }
3977     }
3978     return 1;
3979 }
3980
3981 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
3982 {
3983     gdth_stackframe stack;
3984     char *f = NULL;
3985     int i,j;
3986
3987     TRACE2(("gdth_log_event()\n"));
3988     if (dvr->size == 0) {
3989         if (buffer == NULL) {
3990             printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
3991         } else {
3992             sprintf(buffer,"Adapter %d: %s\n",
3993                 dvr->eu.async.ionode,dvr->event_string);
3994         }
3995     } else if (dvr->eu.async.service == CACHESERVICE &&
3996         INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
3997         TRACE2(("GDT: Async. event cache service, event no.: %d\n",
3998                 dvr->eu.async.status));
3999
4000         f = async_cache_tab[dvr->eu.async.status];
4001
4002         /* i: parameter to push, j: stack element to fill */
4003         for (j=0,i=1; i < f[0]; i+=2) {
4004             switch (f[i+1]) {
4005               case 4:
4006                 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
4007                 break;
4008               case 2:
4009                 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
4010                 break;
4011               case 1:
4012                 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
4013                 break;
4014               default:
4015                 break;
4016             }
4017         }
4018
4019         if (buffer == NULL) {
4020             printk(&f[(int)f[0]],stack);
4021             printk("\n");
4022         } else {
4023             sprintf(buffer,&f[(int)f[0]],stack);
4024         }
4025
4026     } else {
4027         if (buffer == NULL) {
4028             printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
4029                    dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4030         } else {
4031             sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
4032                     dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4033         }
4034     }
4035 }
4036
4037 #ifdef GDTH_STATISTICS
4038 static void gdth_timeout(ulong data)
4039 {
4040     ulong32 i;
4041     Scsi_Cmnd *nscp;
4042     gdth_ha_str *ha;
4043     ulong flags;
4044     int hanum = 0;
4045
4046     ha = HADATA(gdth_ctr_tab[hanum]);
4047     spin_lock_irqsave(&ha->smp_lock, flags);
4048
4049     for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
4050         if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
4051             ++act_stats;
4052
4053     for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
4054         ++act_rq;
4055
4056     TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
4057             act_ints, act_ios, act_stats, act_rq));
4058     act_ints = act_ios = 0;
4059
4060     gdth_timer.expires = jiffies + 30 * HZ;
4061     add_timer(&gdth_timer);
4062     spin_unlock_irqrestore(&ha->smp_lock, flags);
4063 }
4064 #endif
4065
4066 static void __init internal_setup(char *str,int *ints)
4067 {
4068     int i, argc;
4069     char *cur_str, *argv;
4070
4071     TRACE2(("internal_setup() str %s ints[0] %d\n",
4072             str ? str:"NULL", ints ? ints[0]:0));
4073
4074     /* read irq[] from ints[] */
4075     if (ints) {
4076         argc = ints[0];
4077         if (argc > 0) {
4078             if (argc > MAXHA)
4079                 argc = MAXHA;
4080             for (i = 0; i < argc; ++i)
4081                 irq[i] = ints[i+1];
4082         }
4083     }
4084
4085     /* analyse string */
4086     argv = str;
4087     while (argv && (cur_str = strchr(argv, ':'))) {
4088         int val = 0, c = *++cur_str;
4089
4090         if (c == 'n' || c == 'N')
4091             val = 0;
4092         else if (c == 'y' || c == 'Y')
4093             val = 1;
4094         else
4095             val = (int)simple_strtoul(cur_str, NULL, 0);
4096
4097         if (!strncmp(argv, "disable:", 8))
4098             disable = val;
4099         else if (!strncmp(argv, "reserve_mode:", 13))
4100             reserve_mode = val;
4101         else if (!strncmp(argv, "reverse_scan:", 13))
4102             reverse_scan = val;
4103         else if (!strncmp(argv, "hdr_channel:", 12))
4104             hdr_channel = val;
4105         else if (!strncmp(argv, "max_ids:", 8))
4106             max_ids = val;
4107         else if (!strncmp(argv, "rescan:", 7))
4108             rescan = val;
4109         else if (!strncmp(argv, "virt_ctr:", 9))
4110             virt_ctr = val;
4111         else if (!strncmp(argv, "shared_access:", 14))
4112             shared_access = val;
4113         else if (!strncmp(argv, "probe_eisa_isa:", 15))
4114             probe_eisa_isa = val;
4115         else if (!strncmp(argv, "reserve_list:", 13)) {
4116             reserve_list[0] = val;
4117             for (i = 1; i < MAX_RES_ARGS; i++) {
4118                 cur_str = strchr(cur_str, ',');
4119                 if (!cur_str)
4120                     break;
4121                 if (!isdigit((int)*++cur_str)) {
4122                     --cur_str;
4123                     break;
4124                 }
4125                 reserve_list[i] =
4126                     (int)simple_strtoul(cur_str, NULL, 0);
4127             }
4128             if (!cur_str)
4129                 break;
4130             argv = ++cur_str;
4131             continue;
4132         }
4133
4134         if ((argv = strchr(argv, ',')))
4135             ++argv;
4136     }
4137 }
4138
4139 int __init option_setup(char *str)
4140 {
4141     int ints[MAXHA];
4142     char *cur = str;
4143     int i = 1;
4144
4145     TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
4146
4147     while (cur && isdigit(*cur) && i <= MAXHA) {
4148         ints[i++] = simple_strtoul(cur, NULL, 0);
4149         if ((cur = strchr(cur, ',')) != NULL) cur++;
4150     }
4151
4152     ints[0] = i - 1;
4153     internal_setup(cur, ints);
4154     return 1;
4155 }
4156
4157 static int __init gdth_detect(struct scsi_host_template *shtp)
4158 {
4159     struct Scsi_Host *shp;
4160     gdth_pci_str pcistr[MAXHA];
4161     gdth_ha_str *ha;
4162     ulong32 isa_bios;
4163     ushort eisa_slot;
4164     int i,hanum,cnt,ctr,err;
4165     unchar b;
4166
4167
4168 #ifdef DEBUG_GDTH
4169     printk("GDT: This driver contains debugging information !! Trace level = %d\n",
4170         DebugState);
4171     printk("     Destination of debugging information: ");
4172 #ifdef __SERIAL__
4173 #ifdef __COM2__
4174     printk("Serial port COM2\n");
4175 #else
4176     printk("Serial port COM1\n");
4177 #endif
4178 #else
4179     printk("Console\n");
4180 #endif
4181     gdth_delay(3000);
4182 #endif
4183
4184     TRACE(("gdth_detect()\n"));
4185
4186     if (disable) {
4187         printk("GDT-HA: Controller driver disabled from command line !\n");
4188         return 0;
4189     }
4190
4191     printk("GDT-HA: Storage RAID Controller Driver. Version: %s \n",GDTH_VERSION_STR);
4192     /* initializations */
4193     gdth_polling = TRUE; b = 0;
4194     gdth_clear_events();
4195
4196     /* As default we do not probe for EISA or ISA controllers */
4197     if (probe_eisa_isa) {
4198         /* scanning for controllers, at first: ISA controller */
4199         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
4200             dma_addr_t scratch_dma_handle;
4201             scratch_dma_handle = 0;
4202
4203             if (gdth_ctr_count >= MAXHA)
4204                 break;
4205             if (gdth_search_isa(isa_bios)) {        /* controller found */
4206                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4207                 if (shp == NULL)
4208                     continue;
4209
4210                 ha = HADATA(shp);
4211                 if (!gdth_init_isa(isa_bios,ha)) {
4212                     scsi_unregister(shp);
4213                     continue;
4214                 }
4215 #ifdef __ia64__
4216                 break;
4217 #else
4218                 /* controller found and initialized */
4219                 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4220                        isa_bios,ha->irq,ha->drq);
4221
4222                 if (request_irq(ha->irq,gdth_interrupt,SA_INTERRUPT,"gdth",ha)) {
4223                     printk("GDT-ISA: Unable to allocate IRQ\n");
4224                     scsi_unregister(shp);
4225                     continue;
4226                 }
4227                 if (request_dma(ha->drq,"gdth")) {
4228                     printk("GDT-ISA: Unable to allocate DMA channel\n");
4229                     free_irq(ha->irq,ha);
4230                     scsi_unregister(shp);
4231                     continue;
4232                 }
4233                 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4234                 enable_dma(ha->drq);
4235                 shp->unchecked_isa_dma = 1;
4236                 shp->irq = ha->irq;
4237                 shp->dma_channel = ha->drq;
4238                 hanum = gdth_ctr_count;
4239                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4240                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4241
4242                 NUMDATA(shp)->hanum = (ushort)hanum;
4243                 NUMDATA(shp)->busnum= 0;
4244
4245                 ha->pccb = CMDDATA(shp);
4246                 ha->ccb_phys = 0L;
4247                 ha->pdev = NULL;
4248                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4249                                                     &scratch_dma_handle);
4250                 ha->scratch_phys = scratch_dma_handle;
4251                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4252                                                 &scratch_dma_handle);
4253                 ha->msg_phys = scratch_dma_handle;
4254 #ifdef INT_COAL
4255                 ha->coal_stat = (gdth_coal_status *)
4256                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4257                         MAXOFFSETS, &scratch_dma_handle);
4258                 ha->coal_stat_phys = scratch_dma_handle;
4259 #endif
4260
4261                 ha->scratch_busy = FALSE;
4262                 ha->req_first = NULL;
4263                 ha->tid_cnt = MAX_HDRIVES;
4264                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4265                     ha->tid_cnt = max_ids;
4266                 for (i=0; i<GDTH_MAXCMDS; ++i)
4267                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4268                 ha->scan_mode = rescan ? 0x10 : 0;
4269
4270                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4271                     !gdth_search_drives(hanum)) {
4272                     printk("GDT-ISA: Error during device scan\n");
4273                     --gdth_ctr_count;
4274                     --gdth_ctr_vcount;
4275
4276 #ifdef INT_COAL
4277                     if (ha->coal_stat)
4278                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4279                                             MAXOFFSETS, ha->coal_stat,
4280                                             ha->coal_stat_phys);
4281 #endif
4282                     if (ha->pscratch)
4283                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4284                                             ha->pscratch, ha->scratch_phys);
4285                     if (ha->pmsg)
4286                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4287                                             ha->pmsg, ha->msg_phys);
4288
4289                     free_irq(ha->irq,ha);
4290                     scsi_unregister(shp);
4291                     continue;
4292                 }
4293                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4294                     hdr_channel = ha->bus_cnt;
4295                 ha->virt_bus = hdr_channel;
4296
4297 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4298     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4299                 shp->highmem_io  = 0;
4300 #endif
4301                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4302                     shp->max_cmd_len = 16;
4303
4304                 shp->max_id      = ha->tid_cnt;
4305                 shp->max_lun     = MAXLUN;
4306                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4307                 if (virt_ctr) {
4308                     virt_ctr = 1;
4309                     /* register addit. SCSI channels as virtual controllers */
4310                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4311                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4312                         shp->unchecked_isa_dma = 1;
4313                         shp->irq = ha->irq;
4314                         shp->dma_channel = ha->drq;
4315                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4316                         NUMDATA(shp)->hanum = (ushort)hanum;
4317                         NUMDATA(shp)->busnum = b;
4318                     }
4319                 }
4320
4321                 spin_lock_init(&ha->smp_lock);
4322                 gdth_enable_int(hanum);
4323 #endif /* !__ia64__ */
4324             }
4325         }
4326
4327         /* scanning for EISA controllers */
4328         for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
4329             dma_addr_t scratch_dma_handle;
4330             scratch_dma_handle = 0;
4331
4332             if (gdth_ctr_count >= MAXHA)
4333                 break;
4334             if (gdth_search_eisa(eisa_slot)) {      /* controller found */
4335                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4336                 if (shp == NULL)
4337                     continue;
4338
4339                 ha = HADATA(shp);
4340                 if (!gdth_init_eisa(eisa_slot,ha)) {
4341                     scsi_unregister(shp);
4342                     continue;
4343                 }
4344                 /* controller found and initialized */
4345                 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4346                        eisa_slot>>12,ha->irq);
4347
4348                 if (request_irq(ha->irq,gdth_interrupt,SA_INTERRUPT,"gdth",ha)) {
4349                     printk("GDT-EISA: Unable to allocate IRQ\n");
4350                     scsi_unregister(shp);
4351                     continue;
4352                 }
4353                 shp->unchecked_isa_dma = 0;
4354                 shp->irq = ha->irq;
4355                 shp->dma_channel = 0xff;
4356                 hanum = gdth_ctr_count;
4357                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4358                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4359
4360                 NUMDATA(shp)->hanum = (ushort)hanum;
4361                 NUMDATA(shp)->busnum= 0;
4362                 TRACE2(("EISA detect Bus 0: hanum %d\n",
4363                         NUMDATA(shp)->hanum));
4364
4365                 ha->pccb = CMDDATA(shp);
4366                 ha->ccb_phys = 0L;
4367
4368                 ha->pdev = NULL;
4369                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4370                                                     &scratch_dma_handle);
4371                 ha->scratch_phys = scratch_dma_handle;
4372                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4373                                                 &scratch_dma_handle);
4374                 ha->msg_phys = scratch_dma_handle;
4375 #ifdef INT_COAL
4376                 ha->coal_stat = (gdth_coal_status *)
4377                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4378                                          MAXOFFSETS, &scratch_dma_handle);
4379                 ha->coal_stat_phys = scratch_dma_handle;
4380 #endif
4381                 ha->ccb_phys =
4382                     pci_map_single(ha->pdev,ha->pccb,
4383                                    sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4384                 ha->scratch_busy = FALSE;
4385                 ha->req_first = NULL;
4386                 ha->tid_cnt = MAX_HDRIVES;
4387                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4388                     ha->tid_cnt = max_ids;
4389                 for (i=0; i<GDTH_MAXCMDS; ++i)
4390                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4391                 ha->scan_mode = rescan ? 0x10 : 0;
4392
4393                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4394                     !gdth_search_drives(hanum)) {
4395                     printk("GDT-EISA: Error during device scan\n");
4396                     --gdth_ctr_count;
4397                     --gdth_ctr_vcount;
4398 #ifdef INT_COAL
4399                     if (ha->coal_stat)
4400                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4401                                             MAXOFFSETS, ha->coal_stat,
4402                                             ha->coal_stat_phys);
4403 #endif
4404                     if (ha->pscratch)
4405                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4406                                             ha->pscratch, ha->scratch_phys);
4407                     if (ha->pmsg)
4408                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4409                                             ha->pmsg, ha->msg_phys);
4410                     if (ha->ccb_phys)
4411                         pci_unmap_single(ha->pdev,ha->ccb_phys,
4412                                         sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4413                     free_irq(ha->irq,ha);
4414                     scsi_unregister(shp);
4415                     continue;
4416                 }
4417                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4418                     hdr_channel = ha->bus_cnt;
4419                 ha->virt_bus = hdr_channel;
4420
4421 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4422     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4423                 shp->highmem_io  = 0;
4424 #endif
4425                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4426                     shp->max_cmd_len = 16;
4427
4428                 shp->max_id      = ha->tid_cnt;
4429                 shp->max_lun     = MAXLUN;
4430                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4431                 if (virt_ctr) {
4432                     virt_ctr = 1;
4433                     /* register addit. SCSI channels as virtual controllers */
4434                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4435                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4436                         shp->unchecked_isa_dma = 0;
4437                         shp->irq = ha->irq;
4438                         shp->dma_channel = 0xff;
4439                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4440                         NUMDATA(shp)->hanum = (ushort)hanum;
4441                         NUMDATA(shp)->busnum = b;
4442                     }
4443                 }
4444
4445                 spin_lock_init(&ha->smp_lock);
4446                 gdth_enable_int(hanum);
4447             }
4448         }
4449     }
4450
4451     /* scanning for PCI controllers */
4452     cnt = gdth_search_pci(pcistr);
4453     printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
4454     gdth_sort_pci(pcistr,cnt);
4455     for (ctr = 0; ctr < cnt; ++ctr) {
4456         dma_addr_t scratch_dma_handle;
4457         scratch_dma_handle = 0;
4458
4459         if (gdth_ctr_count >= MAXHA)
4460             break;
4461         shp = scsi_register(shtp,sizeof(gdth_ext_str));
4462         if (shp == NULL)
4463             continue;
4464
4465         ha = HADATA(shp);
4466         if (!gdth_init_pci(&pcistr[ctr],ha)) {
4467             scsi_unregister(shp);
4468             continue;
4469         }
4470         /* controller found and initialized */
4471         printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4472                pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
4473
4474         if (request_irq(ha->irq, gdth_interrupt,
4475                         SA_INTERRUPT|SA_SHIRQ, "gdth", ha))
4476         {
4477             printk("GDT-PCI: Unable to allocate IRQ\n");
4478             scsi_unregister(shp);
4479             continue;
4480         }
4481         shp->unchecked_isa_dma = 0;
4482         shp->irq = ha->irq;
4483         shp->dma_channel = 0xff;
4484         hanum = gdth_ctr_count;
4485         gdth_ctr_tab[gdth_ctr_count++] = shp;
4486         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4487
4488         NUMDATA(shp)->hanum = (ushort)hanum;
4489         NUMDATA(shp)->busnum= 0;
4490
4491         ha->pccb = CMDDATA(shp);
4492         ha->ccb_phys = 0L;
4493
4494         ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4495                                             &scratch_dma_handle);
4496         ha->scratch_phys = scratch_dma_handle;
4497         ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4498                                         &scratch_dma_handle);
4499         ha->msg_phys = scratch_dma_handle;
4500 #ifdef INT_COAL
4501         ha->coal_stat = (gdth_coal_status *)
4502             pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4503                                  MAXOFFSETS, &scratch_dma_handle);
4504         ha->coal_stat_phys = scratch_dma_handle;
4505 #endif
4506         ha->scratch_busy = FALSE;
4507         ha->req_first = NULL;
4508         ha->tid_cnt = pcistr[ctr].device_id >= 0x200 ? MAXID : MAX_HDRIVES;
4509         if (max_ids > 0 && max_ids < ha->tid_cnt)
4510             ha->tid_cnt = max_ids;
4511         for (i=0; i<GDTH_MAXCMDS; ++i)
4512             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4513         ha->scan_mode = rescan ? 0x10 : 0;
4514
4515         err = FALSE;
4516         if (ha->pscratch == NULL || ha->pmsg == NULL ||
4517             !gdth_search_drives(hanum)) {
4518             err = TRUE;
4519         } else {
4520             if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4521                 hdr_channel = ha->bus_cnt;
4522             ha->virt_bus = hdr_channel;
4523
4524
4525 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4526             scsi_set_pci_device(shp, pcistr[ctr].pdev);
4527 #endif
4528             if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
4529                 /* 64-bit DMA only supported from FW >= x.43 */
4530                 (!ha->dma64_support)) {
4531                 if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4532                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
4533                     err = TRUE;
4534                 }
4535             } else {
4536                 shp->max_cmd_len = 16;
4537                 if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
4538                     printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
4539                 } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4540                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
4541                     err = TRUE;
4542                 }
4543             }
4544         }
4545
4546         if (err) {
4547             printk("GDT-PCI %d: Error during device scan\n", hanum);
4548             --gdth_ctr_count;
4549             --gdth_ctr_vcount;
4550 #ifdef INT_COAL
4551             if (ha->coal_stat)
4552                 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4553                                     MAXOFFSETS, ha->coal_stat,
4554                                     ha->coal_stat_phys);
4555 #endif
4556             if (ha->pscratch)
4557                 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4558                                     ha->pscratch, ha->scratch_phys);
4559             if (ha->pmsg)
4560                 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4561                                     ha->pmsg, ha->msg_phys);
4562             free_irq(ha->irq,ha);
4563             scsi_unregister(shp);
4564             continue;
4565         }
4566
4567         shp->max_id      = ha->tid_cnt;
4568         shp->max_lun     = MAXLUN;
4569         shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4570         if (virt_ctr) {
4571             virt_ctr = 1;
4572             /* register addit. SCSI channels as virtual controllers */
4573             for (b = 1; b < ha->bus_cnt + 1; ++b) {
4574                 shp = scsi_register(shtp,sizeof(gdth_num_str));
4575                 shp->unchecked_isa_dma = 0;
4576                 shp->irq = ha->irq;
4577                 shp->dma_channel = 0xff;
4578                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4579                 NUMDATA(shp)->hanum = (ushort)hanum;
4580                 NUMDATA(shp)->busnum = b;
4581             }
4582         }
4583
4584         spin_lock_init(&ha->smp_lock);
4585         gdth_enable_int(hanum);
4586     }
4587
4588     TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
4589     if (gdth_ctr_count > 0) {
4590 #ifdef GDTH_STATISTICS
4591         TRACE2(("gdth_detect(): Initializing timer !\n"));
4592         init_timer(&gdth_timer);
4593         gdth_timer.expires = jiffies + HZ;
4594         gdth_timer.data = 0L;
4595         gdth_timer.function = gdth_timeout;
4596         add_timer(&gdth_timer);
4597 #endif
4598         major = register_chrdev(0,"gdth",&gdth_fops);
4599         notifier_disabled = 0;
4600         register_reboot_notifier(&gdth_notifier);
4601     }
4602     gdth_polling = FALSE;
4603     return gdth_ctr_vcount;
4604 }
4605
4606 static int gdth_release(struct Scsi_Host *shp)
4607 {
4608     int hanum;
4609     gdth_ha_str *ha;
4610
4611     TRACE2(("gdth_release()\n"));
4612     if (NUMDATA(shp)->busnum == 0) {
4613         hanum = NUMDATA(shp)->hanum;
4614         ha    = HADATA(gdth_ctr_tab[hanum]);
4615         if (ha->sdev) {
4616             scsi_free_host_dev(ha->sdev);
4617             ha->sdev = NULL;
4618         }
4619         gdth_flush(hanum);
4620
4621         if (shp->irq) {
4622             free_irq(shp->irq,ha);
4623         }
4624 #ifndef __ia64__
4625         if (shp->dma_channel != 0xff) {
4626             free_dma(shp->dma_channel);
4627         }
4628 #endif
4629 #ifdef INT_COAL
4630         if (ha->coal_stat)
4631             pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4632                                 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
4633 #endif
4634         if (ha->pscratch)
4635             pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4636                                 ha->pscratch, ha->scratch_phys);
4637         if (ha->pmsg)
4638             pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4639                                 ha->pmsg, ha->msg_phys);
4640         if (ha->ccb_phys)
4641             pci_unmap_single(ha->pdev,ha->ccb_phys,
4642                              sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4643         gdth_ctr_released++;
4644         TRACE2(("gdth_release(): HA %d of %d\n",
4645                 gdth_ctr_released, gdth_ctr_count));
4646
4647         if (gdth_ctr_released == gdth_ctr_count) {
4648 #ifdef GDTH_STATISTICS
4649             del_timer(&gdth_timer);
4650 #endif
4651             unregister_chrdev(major,"gdth");
4652             unregister_reboot_notifier(&gdth_notifier);
4653         }
4654     }
4655
4656     scsi_unregister(shp);
4657     return 0;
4658 }
4659
4660
4661 static const char *gdth_ctr_name(int hanum)
4662 {
4663     gdth_ha_str *ha;
4664
4665     TRACE2(("gdth_ctr_name()\n"));
4666
4667     ha    = HADATA(gdth_ctr_tab[hanum]);
4668
4669     if (ha->type == GDT_EISA) {
4670         switch (ha->stype) {
4671           case GDT3_ID:
4672             return("GDT3000/3020");
4673           case GDT3A_ID:
4674             return("GDT3000A/3020A/3050A");
4675           case GDT3B_ID:
4676             return("GDT3000B/3010A");
4677         }
4678     } else if (ha->type == GDT_ISA) {
4679         return("GDT2000/2020");
4680     } else if (ha->type == GDT_PCI) {
4681         switch (ha->stype) {
4682           case PCI_DEVICE_ID_VORTEX_GDT60x0:
4683             return("GDT6000/6020/6050");
4684           case PCI_DEVICE_ID_VORTEX_GDT6000B:
4685             return("GDT6000B/6010");
4686         }
4687     }
4688     /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
4689
4690     return("");
4691 }
4692
4693 static const char *gdth_info(struct Scsi_Host *shp)
4694 {
4695     int hanum;
4696     gdth_ha_str *ha;
4697
4698     TRACE2(("gdth_info()\n"));
4699     hanum = NUMDATA(shp)->hanum;
4700     ha    = HADATA(gdth_ctr_tab[hanum]);
4701
4702     return ((const char *)ha->binfo.type_string);
4703 }
4704
4705 static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
4706 {
4707     int i, hanum;
4708     gdth_ha_str *ha;
4709     ulong flags;
4710     Scsi_Cmnd *cmnd;
4711     unchar b;
4712
4713     TRACE2(("gdth_eh_bus_reset()\n"));
4714
4715     hanum = NUMDATA(scp->device->host)->hanum;
4716     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
4717     ha    = HADATA(gdth_ctr_tab[hanum]);
4718
4719     /* clear command tab */
4720     spin_lock_irqsave(&ha->smp_lock, flags);
4721     for (i = 0; i < GDTH_MAXCMDS; ++i) {
4722         cmnd = ha->cmd_tab[i].cmnd;
4723         if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
4724             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4725     }
4726     spin_unlock_irqrestore(&ha->smp_lock, flags);
4727
4728     if (b == ha->virt_bus) {
4729         /* host drives */
4730         for (i = 0; i < MAX_HDRIVES; ++i) {
4731             if (ha->hdr[i].present) {
4732                 spin_lock_irqsave(&ha->smp_lock, flags);
4733                 gdth_polling = TRUE;
4734                 while (gdth_test_busy(hanum))
4735                     gdth_delay(0);
4736                 if (gdth_internal_cmd(hanum, CACHESERVICE,
4737                                       GDT_CLUST_RESET, i, 0, 0))
4738                     ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
4739                 gdth_polling = FALSE;
4740                 spin_unlock_irqrestore(&ha->smp_lock, flags);
4741             }
4742         }
4743     } else {
4744         /* raw devices */
4745         spin_lock_irqsave(&ha->smp_lock, flags);
4746         for (i = 0; i < MAXID; ++i)
4747             ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
4748         gdth_polling = TRUE;
4749         while (gdth_test_busy(hanum))
4750             gdth_delay(0);
4751         gdth_internal_cmd(hanum, SCSIRAWSERVICE, GDT_RESET_BUS,
4752                           BUS_L2P(ha,b), 0, 0);
4753         gdth_polling = FALSE;
4754         spin_unlock_irqrestore(&ha->smp_lock, flags);
4755     }
4756     return SUCCESS;
4757 }
4758
4759 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4760 static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
4761 #else
4762 static int gdth_bios_param(Disk *disk,kdev_t dev,int *ip)
4763 #endif
4764 {
4765     unchar b, t;
4766     int hanum;
4767     gdth_ha_str *ha;
4768     struct scsi_device *sd;
4769     unsigned capacity;
4770
4771 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4772     sd = sdev;
4773     capacity = cap;
4774 #else
4775     sd = disk->device;
4776     capacity = disk->capacity;
4777 #endif
4778     hanum = NUMDATA(sd->host)->hanum;
4779     b = virt_ctr ? NUMDATA(sd->host)->busnum : sd->channel;
4780     t = sd->id;
4781     TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", hanum, b, t));
4782     ha = HADATA(gdth_ctr_tab[hanum]);
4783
4784     if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
4785         /* raw device or host drive without mapping information */
4786         TRACE2(("Evaluate mapping\n"));
4787         gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
4788     } else {
4789         ip[0] = ha->hdr[t].heads;
4790         ip[1] = ha->hdr[t].secs;
4791         ip[2] = capacity / ip[0] / ip[1];
4792     }
4793
4794     TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
4795             ip[0],ip[1],ip[2]));
4796     return 0;
4797 }
4798
4799
4800 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *))
4801 {
4802     int hanum;
4803     int priority;
4804
4805     TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4806
4807     scp->scsi_done = (void *)done;
4808     scp->SCp.have_data_in = 1;
4809     scp->SCp.phase = -1;
4810     scp->SCp.sent_command = -1;
4811     scp->SCp.Status = GDTH_MAP_NONE;
4812     scp->SCp.buffer = (struct scatterlist *)NULL;
4813
4814     hanum = NUMDATA(scp->device->host)->hanum;
4815 #ifdef GDTH_STATISTICS
4816     ++act_ios;
4817 #endif
4818
4819     priority = DEFAULT_PRI;
4820     if (scp->done == gdth_scsi_done)
4821         priority = scp->SCp.this_residual;
4822     gdth_update_timeout(hanum, scp, scp->timeout_per_command * 6);
4823     gdth_putq( hanum, scp, priority );
4824     gdth_next( hanum );
4825     return 0;
4826 }
4827
4828
4829 static int gdth_open(struct inode *inode, struct file *filep)
4830 {
4831     gdth_ha_str *ha;
4832     int i;
4833
4834     for (i = 0; i < gdth_ctr_count; i++) {
4835         ha = HADATA(gdth_ctr_tab[i]);
4836         if (!ha->sdev)
4837             ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]);
4838     }
4839
4840     TRACE(("gdth_open()\n"));
4841     return 0;
4842 }
4843
4844 static int gdth_close(struct inode *inode, struct file *filep)
4845 {
4846     TRACE(("gdth_close()\n"));
4847     return 0;
4848 }
4849
4850 static int ioc_event(void __user *arg)
4851 {
4852     gdth_ioctl_event evt;
4853     gdth_ha_str *ha;
4854     ulong flags;
4855
4856     if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) ||
4857         evt.ionode >= gdth_ctr_count)
4858         return -EFAULT;
4859     ha = HADATA(gdth_ctr_tab[evt.ionode]);
4860
4861     if (evt.erase == 0xff) {
4862         if (evt.event.event_source == ES_TEST)
4863             evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4864         else if (evt.event.event_source == ES_DRIVER)
4865             evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4866         else if (evt.event.event_source == ES_SYNC)
4867             evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
4868         else
4869             evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
4870         spin_lock_irqsave(&ha->smp_lock, flags);
4871         gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
4872                          &evt.event.event_data);
4873         spin_unlock_irqrestore(&ha->smp_lock, flags);
4874     } else if (evt.erase == 0xfe) {
4875         gdth_clear_events();
4876     } else if (evt.erase == 0) {
4877         evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
4878     } else {
4879         gdth_readapp_event(ha, evt.erase, &evt.event);
4880     }
4881     if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
4882         return -EFAULT;
4883     return 0;
4884 }
4885
4886 static int ioc_lockdrv(void __user *arg)
4887 {
4888     gdth_ioctl_lockdrv ldrv;
4889     unchar i, j;
4890     ulong flags;
4891     gdth_ha_str *ha;
4892
4893     if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) ||
4894         ldrv.ionode >= gdth_ctr_count)
4895         return -EFAULT;
4896     ha = HADATA(gdth_ctr_tab[ldrv.ionode]);
4897
4898     for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
4899         j = ldrv.drives[i];
4900         if (j >= MAX_HDRIVES || !ha->hdr[j].present)
4901             continue;
4902         if (ldrv.lock) {
4903             spin_lock_irqsave(&ha->smp_lock, flags);
4904             ha->hdr[j].lock = 1;
4905             spin_unlock_irqrestore(&ha->smp_lock, flags);
4906             gdth_wait_completion(ldrv.ionode, ha->bus_cnt, j);
4907             gdth_stop_timeout(ldrv.ionode, ha->bus_cnt, j);
4908         } else {
4909             spin_lock_irqsave(&ha->smp_lock, flags);
4910             ha->hdr[j].lock = 0;
4911             spin_unlock_irqrestore(&ha->smp_lock, flags);
4912             gdth_start_timeout(ldrv.ionode, ha->bus_cnt, j);
4913             gdth_next(ldrv.ionode);
4914         }
4915     }
4916     return 0;
4917 }
4918
4919 static int ioc_resetdrv(void __user *arg, char *cmnd)
4920 {
4921     gdth_ioctl_reset res;
4922     gdth_cmd_str cmd;
4923     int hanum;
4924     gdth_ha_str *ha;
4925 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4926     Scsi_Request *srp;
4927 #else
4928     Scsi_Cmnd *scp;
4929 #endif
4930
4931     if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
4932         res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
4933         return -EFAULT;
4934     hanum = res.ionode;
4935     ha = HADATA(gdth_ctr_tab[hanum]);
4936
4937     if (!ha->hdr[res.number].present)
4938         return 0;
4939     memset(&cmd, 0, sizeof(gdth_cmd_str));
4940     cmd.Service = CACHESERVICE;
4941     cmd.OpCode = GDT_CLUST_RESET;
4942     if (ha->cache_feat & GDT_64BIT)
4943         cmd.u.cache64.DeviceNo = res.number;
4944     else
4945         cmd.u.cache.DeviceNo = res.number;
4946 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4947     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
4948     if (!srp)
4949         return -ENOMEM;
4950     srp->sr_cmd_len = 12;
4951     srp->sr_use_sg = 0;
4952     gdth_do_req(srp, &cmd, cmnd, 30);
4953     res.status = (ushort)srp->sr_command->SCp.Status;
4954     scsi_release_request(srp);
4955 #else
4956     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
4957     if (!scp)
4958         return -ENOMEM;
4959     scp->cmd_len = 12;
4960     scp->use_sg = 0;
4961     gdth_do_cmd(scp, &cmd, cmnd, 30);
4962     res.status = (ushort)scp->SCp.Status;
4963     scsi_release_command(scp);
4964 #endif
4965
4966     if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
4967         return -EFAULT;
4968     return 0;
4969 }
4970
4971 static int ioc_general(void __user *arg, char *cmnd)
4972 {
4973     gdth_ioctl_general gen;
4974     char *buf = NULL;
4975     ulong64 paddr;
4976     int hanum;
4977         gdth_ha_str *ha;
4978 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4979         Scsi_Request *srp;
4980 #else
4981         Scsi_Cmnd *scp;
4982 #endif
4983
4984     if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
4985         gen.ionode >= gdth_ctr_count)
4986         return -EFAULT;
4987     hanum = gen.ionode;
4988     ha = HADATA(gdth_ctr_tab[hanum]);
4989     if (gen.data_len + gen.sense_len != 0) {
4990         if (!(buf = gdth_ioctl_alloc(hanum, gen.data_len + gen.sense_len,
4991                                      FALSE, &paddr)))
4992             return -EFAULT;
4993         if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
4994                            gen.data_len + gen.sense_len)) {
4995             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
4996             return -EFAULT;
4997         }
4998
4999         if (gen.command.OpCode == GDT_IOCTL) {
5000             gen.command.u.ioctl.p_param = paddr;
5001         } else if (gen.command.Service == CACHESERVICE) {
5002             if (ha->cache_feat & GDT_64BIT) {
5003                 /* copy elements from 32-bit IOCTL structure */
5004                 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
5005                 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
5006                 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
5007                 /* addresses */
5008                 if (ha->cache_feat & SCATTER_GATHER) {
5009                     gen.command.u.cache64.DestAddr = (ulong64)-1;
5010                     gen.command.u.cache64.sg_canz = 1;
5011                     gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
5012                     gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
5013                     gen.command.u.cache64.sg_lst[1].sg_len = 0;
5014                 } else {
5015                     gen.command.u.cache64.DestAddr = paddr;
5016                     gen.command.u.cache64.sg_canz = 0;
5017                 }
5018             } else {
5019                 if (ha->cache_feat & SCATTER_GATHER) {
5020                     gen.command.u.cache.DestAddr = 0xffffffff;
5021                     gen.command.u.cache.sg_canz = 1;
5022                     gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
5023                     gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
5024                     gen.command.u.cache.sg_lst[1].sg_len = 0;
5025                 } else {
5026                     gen.command.u.cache.DestAddr = paddr;
5027                     gen.command.u.cache.sg_canz = 0;
5028                 }
5029             }
5030         } else if (gen.command.Service == SCSIRAWSERVICE) {
5031             if (ha->raw_feat & GDT_64BIT) {
5032                 /* copy elements from 32-bit IOCTL structure */
5033                 char cmd[16];
5034                 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
5035                 gen.command.u.raw64.bus = gen.command.u.raw.bus;
5036                 gen.command.u.raw64.lun = gen.command.u.raw.lun;
5037                 gen.command.u.raw64.target = gen.command.u.raw.target;
5038                 memcpy(cmd, gen.command.u.raw.cmd, 16);
5039                 memcpy(gen.command.u.raw64.cmd, cmd, 16);
5040                 gen.command.u.raw64.clen = gen.command.u.raw.clen;
5041                 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
5042                 gen.command.u.raw64.direction = gen.command.u.raw.direction;
5043                 /* addresses */
5044                 if (ha->raw_feat & SCATTER_GATHER) {
5045                     gen.command.u.raw64.sdata = (ulong64)-1;
5046                     gen.command.u.raw64.sg_ranz = 1;
5047                     gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
5048                     gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
5049                     gen.command.u.raw64.sg_lst[1].sg_len = 0;
5050                 } else {
5051                     gen.command.u.raw64.sdata = paddr;
5052                     gen.command.u.raw64.sg_ranz = 0;
5053                 }
5054                 gen.command.u.raw64.sense_data = paddr + gen.data_len;
5055             } else {
5056                 if (ha->raw_feat & SCATTER_GATHER) {
5057                     gen.command.u.raw.sdata = 0xffffffff;
5058                     gen.command.u.raw.sg_ranz = 1;
5059                     gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
5060                     gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
5061                     gen.command.u.raw.sg_lst[1].sg_len = 0;
5062                 } else {
5063                     gen.command.u.raw.sdata = paddr;
5064                     gen.command.u.raw.sg_ranz = 0;
5065                 }
5066                 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
5067             }
5068         } else {
5069             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5070             return -EFAULT;
5071         }
5072     }
5073
5074 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5075     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5076     if (!srp)
5077         return -ENOMEM;
5078     srp->sr_cmd_len = 12;
5079     srp->sr_use_sg = 0;
5080     gdth_do_req(srp, &gen.command, cmnd, gen.timeout);
5081     gen.status = srp->sr_command->SCp.Status;
5082     gen.info = srp->sr_command->SCp.Message;
5083     scsi_release_request(srp);
5084 #else
5085     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5086     if (!scp)
5087         return -ENOMEM;
5088     scp->cmd_len = 12;
5089     scp->use_sg = 0;
5090     gdth_do_cmd(scp, &gen.command, cmnd, gen.timeout);
5091     gen.status = scp->SCp.Status;
5092     gen.info = scp->SCp.Message;
5093     scsi_release_command(scp);
5094 #endif
5095
5096     if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
5097                      gen.data_len + gen.sense_len)) {
5098         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5099         return -EFAULT;
5100     }
5101     if (copy_to_user(arg, &gen,
5102         sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
5103         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5104         return -EFAULT;
5105     }
5106     gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5107     return 0;
5108 }
5109
5110 static int ioc_hdrlist(void __user *arg, char *cmnd)
5111 {
5112     gdth_ioctl_rescan *rsc;
5113     gdth_cmd_str *cmd;
5114     gdth_ha_str *ha;
5115     unchar i;
5116     int hanum, rc = -ENOMEM;
5117 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5118     Scsi_Request *srp;
5119 #else
5120     Scsi_Cmnd *scp;
5121 #endif
5122
5123     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5124     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5125     if (!rsc || !cmd)
5126         goto free_fail;
5127
5128     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5129         rsc->ionode >= gdth_ctr_count) {
5130         rc = -EFAULT;
5131         goto free_fail;
5132     }
5133     hanum = rsc->ionode;
5134     ha = HADATA(gdth_ctr_tab[hanum]);
5135     memset(cmd, 0, sizeof(gdth_cmd_str));
5136
5137 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5138     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5139     if (!srp)
5140         goto free_fail;
5141     srp->sr_cmd_len = 12;
5142     srp->sr_use_sg = 0;
5143 #else
5144     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5145     if (!scp)
5146         goto free_fail;
5147     scp->cmd_len = 12;
5148     scp->use_sg = 0;
5149 #endif
5150
5151     for (i = 0; i < MAX_HDRIVES; ++i) {
5152         if (!ha->hdr[i].present) {
5153             rsc->hdr_list[i].bus = 0xff;
5154             continue;
5155         }
5156         rsc->hdr_list[i].bus = ha->virt_bus;
5157         rsc->hdr_list[i].target = i;
5158         rsc->hdr_list[i].lun = 0;
5159         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5160         if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
5161             cmd->Service = CACHESERVICE;
5162             cmd->OpCode = GDT_CLUST_INFO;
5163             if (ha->cache_feat & GDT_64BIT)
5164                 cmd->u.cache64.DeviceNo = i;
5165             else
5166                 cmd->u.cache.DeviceNo = i;
5167 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5168             gdth_do_req(srp, cmd, cmnd, 30);
5169             if (srp->sr_command->SCp.Status == S_OK)
5170                 rsc->hdr_list[i].cluster_type = srp->sr_command->SCp.Message;
5171 #else
5172             gdth_do_cmd(scp, cmd, cmnd, 30);
5173             if (scp->SCp.Status == S_OK)
5174                 rsc->hdr_list[i].cluster_type = scp->SCp.Message;
5175 #endif
5176         }
5177     }
5178 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5179     scsi_release_request(srp);
5180 #else
5181     scsi_release_command(scp);
5182 #endif
5183
5184     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5185         rc = -EFAULT;
5186     else
5187         rc = 0;
5188
5189 free_fail:
5190     kfree(rsc);
5191     kfree(cmd);
5192     return rc;
5193 }
5194
5195 static int ioc_rescan(void __user *arg, char *cmnd)
5196 {
5197     gdth_ioctl_rescan *rsc;
5198     gdth_cmd_str *cmd;
5199     ushort i, status, hdr_cnt;
5200     ulong32 info;
5201     int hanum, cyls, hds, secs;
5202     int rc = -ENOMEM;
5203     ulong flags;
5204     gdth_ha_str *ha;
5205 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5206     Scsi_Request *srp;
5207 #else
5208     Scsi_Cmnd *scp;
5209 #endif
5210
5211     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5212     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5213     if (!cmd || !rsc)
5214         goto free_fail;
5215
5216     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5217         rsc->ionode >= gdth_ctr_count) {
5218         rc = -EFAULT;
5219         goto free_fail;
5220     }
5221     hanum = rsc->ionode;
5222     ha = HADATA(gdth_ctr_tab[hanum]);
5223     memset(cmd, 0, sizeof(gdth_cmd_str));
5224
5225 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5226     srp  = scsi_allocate_request(ha->sdev, GFP_KERNEL);
5227     if (!srp)
5228         goto free_fail;
5229     srp->sr_cmd_len = 12;
5230     srp->sr_use_sg = 0;
5231 #else
5232     scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5233     if (!scp)
5234         goto free_fail;
5235     scp->cmd_len = 12;
5236     scp->use_sg = 0;
5237 #endif
5238
5239     if (rsc->flag == 0) {
5240         /* old method: re-init. cache service */
5241         cmd->Service = CACHESERVICE;
5242         if (ha->cache_feat & GDT_64BIT) {
5243             cmd->OpCode = GDT_X_INIT_HOST;
5244             cmd->u.cache64.DeviceNo = LINUX_OS;
5245         } else {
5246             cmd->OpCode = GDT_INIT;
5247             cmd->u.cache.DeviceNo = LINUX_OS;
5248         }
5249 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5250         gdth_do_req(srp, cmd, cmnd, 30);
5251         status = (ushort)srp->sr_command->SCp.Status;
5252         info = (ulong32)srp->sr_command->SCp.Message;
5253 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
5254         gdth_do_cmd(scp, cmd, cmnd, 30);
5255         status = (ushort)scp->SCp.Status;
5256         info = (ulong32)scp->SCp.Message;
5257 #else
5258         gdth_do_cmd(&scp, cmd, cmnd, 30);
5259         status = (ushort)scp.SCp.Status;
5260         info = (ulong32)scp.SCp.Message;
5261 #endif
5262         i = 0;
5263         hdr_cnt = (status == S_OK ? (ushort)info : 0);
5264     } else {
5265         i = rsc->hdr_no;
5266         hdr_cnt = i + 1;
5267     }
5268
5269     for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
5270         cmd->Service = CACHESERVICE;
5271         cmd->OpCode = GDT_INFO;
5272         if (ha->cache_feat & GDT_64BIT)
5273             cmd->u.cache64.DeviceNo = i;
5274         else
5275             cmd->u.cache.DeviceNo = i;
5276 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5277         gdth_do_req(srp, cmd, cmnd, 30);
5278         status = (ushort)srp->sr_command->SCp.Status;
5279         info = (ulong32)srp->sr_command->SCp.Message;
5280 #else
5281         gdth_do_cmd(scp, cmd, cmnd, 30);
5282         status = (ushort)scp->SCp.Status;
5283         info = (ulong32)scp->SCp.Message;
5284 #endif
5285         spin_lock_irqsave(&ha->smp_lock, flags);
5286         rsc->hdr_list[i].bus = ha->virt_bus;
5287         rsc->hdr_list[i].target = i;
5288         rsc->hdr_list[i].lun = 0;
5289         if (status != S_OK) {
5290             ha->hdr[i].present = FALSE;
5291         } else {
5292             ha->hdr[i].present = TRUE;
5293             ha->hdr[i].size = info;
5294             /* evaluate mapping */
5295             ha->hdr[i].size &= ~SECS32;
5296             gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
5297             ha->hdr[i].heads = hds;
5298             ha->hdr[i].secs = secs;
5299             /* round size */
5300             ha->hdr[i].size = cyls * hds * secs;
5301         }
5302         spin_unlock_irqrestore(&ha->smp_lock, flags);
5303         if (status != S_OK)
5304             continue;
5305
5306         /* extended info, if GDT_64BIT, for drives > 2 TB */
5307         /* but we need ha->info2, not yet stored in scp->SCp */
5308
5309         /* devtype, cluster info, R/W attribs */
5310         cmd->Service = CACHESERVICE;
5311         cmd->OpCode = GDT_DEVTYPE;
5312         if (ha->cache_feat & GDT_64BIT)
5313             cmd->u.cache64.DeviceNo = i;
5314         else
5315             cmd->u.cache.DeviceNo = i;
5316 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5317         gdth_do_req(srp, cmd, cmnd, 30);
5318         status = (ushort)srp->sr_command->SCp.Status;
5319         info = (ulong32)srp->sr_command->SCp.Message;
5320 #else
5321         gdth_do_cmd(scp, cmd, cmnd, 30);
5322         status = (ushort)scp->SCp.Status;
5323         info = (ulong32)scp->SCp.Message;
5324 #endif
5325         spin_lock_irqsave(&ha->smp_lock, flags);
5326         ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
5327         spin_unlock_irqrestore(&ha->smp_lock, flags);
5328
5329         cmd->Service = CACHESERVICE;
5330         cmd->OpCode = GDT_CLUST_INFO;
5331         if (ha->cache_feat & GDT_64BIT)
5332             cmd->u.cache64.DeviceNo = i;
5333         else
5334             cmd->u.cache.DeviceNo = i;
5335 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5336         gdth_do_req(srp, cmd, cmnd, 30);
5337         status = (ushort)srp->sr_command->SCp.Status;
5338         info = (ulong32)srp->sr_command->SCp.Message;
5339 #else
5340         gdth_do_cmd(scp, cmd, cmnd, 30);
5341         status = (ushort)scp->SCp.Status;
5342         info = (ulong32)scp->SCp.Message;
5343 #endif
5344         spin_lock_irqsave(&ha->smp_lock, flags);
5345         ha->hdr[i].cluster_type =
5346             ((status == S_OK && !shared_access) ? (ushort)info : 0);
5347         spin_unlock_irqrestore(&ha->smp_lock, flags);
5348         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5349
5350         cmd->Service = CACHESERVICE;
5351         cmd->OpCode = GDT_RW_ATTRIBS;
5352         if (ha->cache_feat & GDT_64BIT)
5353             cmd->u.cache64.DeviceNo = i;
5354         else
5355             cmd->u.cache.DeviceNo = i;
5356 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5357         gdth_do_req(srp, cmd, cmnd, 30);
5358         status = (ushort)srp->sr_command->SCp.Status;
5359         info = (ulong32)srp->sr_command->SCp.Message;
5360 #else
5361         gdth_do_cmd(scp, cmd, cmnd, 30);
5362         status = (ushort)scp->SCp.Status;
5363         info = (ulong32)scp->SCp.Message;
5364 #endif
5365         spin_lock_irqsave(&ha->smp_lock, flags);
5366         ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
5367         spin_unlock_irqrestore(&ha->smp_lock, flags);
5368     }
5369 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5370     scsi_release_request(srp);
5371 #else
5372     scsi_release_command(scp);
5373 #endif
5374
5375     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5376         rc = -EFAULT;
5377     else
5378         rc = 0;
5379
5380 free_fail:
5381     kfree(rsc);
5382     kfree(cmd);
5383     return rc;
5384 }
5385
5386 static int gdth_ioctl(struct inode *inode, struct file *filep,
5387                       unsigned int cmd, unsigned long arg)
5388 {
5389     gdth_ha_str *ha;
5390     Scsi_Cmnd *scp;
5391     ulong flags;
5392     char cmnd[MAX_COMMAND_SIZE];
5393     void __user *argp = (void __user *)arg;
5394
5395     memset(cmnd, 0xff, 12);
5396
5397     TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
5398
5399     switch (cmd) {
5400       case GDTIOCTL_CTRCNT:
5401       {
5402         int cnt = gdth_ctr_count;
5403         if (put_user(cnt, (int __user *)argp))
5404                 return -EFAULT;
5405         break;
5406       }
5407
5408       case GDTIOCTL_DRVERS:
5409       {
5410         int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
5411         if (put_user(ver, (int __user *)argp))
5412                 return -EFAULT;
5413         break;
5414       }
5415
5416       case GDTIOCTL_OSVERS:
5417       {
5418         gdth_ioctl_osvers osv;
5419
5420         osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
5421         osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
5422         osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
5423         if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
5424                 return -EFAULT;
5425         break;
5426       }
5427
5428       case GDTIOCTL_CTRTYPE:
5429       {
5430         gdth_ioctl_ctrtype ctrt;
5431
5432         if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
5433             ctrt.ionode >= gdth_ctr_count)
5434             return -EFAULT;
5435         ha = HADATA(gdth_ctr_tab[ctrt.ionode]);
5436         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
5437             ctrt.type = (unchar)((ha->stype>>20) - 0x10);
5438         } else {
5439             if (ha->type != GDT_PCIMPR) {
5440                 ctrt.type = (unchar)((ha->stype<<4) + 6);
5441             } else {
5442                 ctrt.type =
5443                     (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
5444                 if (ha->stype >= 0x300)
5445                     ctrt.ext_type = 0x6000 | ha->subdevice_id;
5446                 else
5447                     ctrt.ext_type = 0x6000 | ha->stype;
5448             }
5449             ctrt.device_id = ha->stype;
5450             ctrt.sub_device_id = ha->subdevice_id;
5451         }
5452         ctrt.info = ha->brd_phys;
5453         ctrt.oem_id = ha->oem_id;
5454         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
5455             return -EFAULT;
5456         break;
5457       }
5458
5459       case GDTIOCTL_GENERAL:
5460         return ioc_general(argp, cmnd);
5461
5462       case GDTIOCTL_EVENT:
5463         return ioc_event(argp);
5464
5465       case GDTIOCTL_LOCKDRV:
5466         return ioc_lockdrv(argp);
5467
5468       case GDTIOCTL_LOCKCHN:
5469       {
5470         gdth_ioctl_lockchn lchn;
5471         unchar i, j;
5472
5473         if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
5474             lchn.ionode >= gdth_ctr_count)
5475             return -EFAULT;
5476         ha = HADATA(gdth_ctr_tab[lchn.ionode]);
5477
5478         i = lchn.channel;
5479         if (i < ha->bus_cnt) {
5480             if (lchn.lock) {
5481                 spin_lock_irqsave(&ha->smp_lock, flags);
5482                 ha->raw[i].lock = 1;
5483                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5484                 for (j = 0; j < ha->tid_cnt; ++j) {
5485                     gdth_wait_completion(lchn.ionode, i, j);
5486                     gdth_stop_timeout(lchn.ionode, i, j);
5487                 }
5488             } else {
5489                 spin_lock_irqsave(&ha->smp_lock, flags);
5490                 ha->raw[i].lock = 0;
5491                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5492                 for (j = 0; j < ha->tid_cnt; ++j) {
5493                     gdth_start_timeout(lchn.ionode, i, j);
5494                     gdth_next(lchn.ionode);
5495                 }
5496             }
5497         }
5498         break;
5499       }
5500
5501       case GDTIOCTL_RESCAN:
5502         return ioc_rescan(argp, cmnd);
5503
5504       case GDTIOCTL_HDRLIST:
5505         return ioc_hdrlist(argp, cmnd);
5506
5507       case GDTIOCTL_RESET_BUS:
5508       {
5509         gdth_ioctl_reset res;
5510         int hanum, rval;
5511
5512         if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
5513             res.ionode >= gdth_ctr_count)
5514             return -EFAULT;
5515         hanum = res.ionode;
5516         ha = HADATA(gdth_ctr_tab[hanum]);
5517
5518         /* Because we need a Scsi_Cmnd struct., we make a scsi_allocate device also for kernels >=2.6.x */
5519 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5520         scp  = scsi_get_command(ha->sdev, GFP_KERNEL);
5521         if (!scp)
5522             return -ENOMEM;
5523         scp->cmd_len = 12;
5524         scp->use_sg = 0;
5525         scp->device->channel = virt_ctr ? 0 : res.number;
5526         rval = gdth_eh_bus_reset(scp);
5527         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5528         scsi_put_command(scp);
5529 #else
5530         scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5531         if (!scp)
5532             return -ENOMEM;
5533         scp->cmd_len = 12;
5534         scp->use_sg = 0;
5535         scp->channel = virt_ctr ? 0 : res.number;
5536         rval = gdth_eh_bus_reset(scp);
5537         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5538         scsi_release_command(scp);
5539 #endif
5540         if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
5541             return -EFAULT;
5542         break;
5543       }
5544
5545       case GDTIOCTL_RESET_DRV:
5546         return ioc_resetdrv(argp, cmnd);
5547
5548       default:
5549         break;
5550     }
5551     return 0;
5552 }
5553
5554
5555 /* flush routine */
5556 static void gdth_flush(int hanum)
5557 {
5558     int             i;
5559     gdth_ha_str     *ha;
5560     gdth_cmd_str    gdtcmd;
5561 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5562     Scsi_Request    *srp;
5563 #else
5564     Scsi_Cmnd       *scp;
5565 #endif
5566     struct scsi_device     *sdev;
5567     char            cmnd[MAX_COMMAND_SIZE];
5568     memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5569
5570     TRACE2(("gdth_flush() hanum %d\n",hanum));
5571     ha = HADATA(gdth_ctr_tab[hanum]);
5572
5573 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5574     sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
5575     srp  = scsi_allocate_request(sdev, GFP_KERNEL);
5576     if (!srp)
5577         return;
5578     srp->sr_cmd_len = 12;
5579     srp->sr_use_sg = 0;
5580 #else
5581     sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
5582     scp  = scsi_allocate_device(sdev, 1, FALSE);
5583     if (!scp)
5584         return;
5585     scp->cmd_len = 12;
5586     scp->use_sg = 0;
5587 #endif
5588
5589     for (i = 0; i < MAX_HDRIVES; ++i) {
5590         if (ha->hdr[i].present) {
5591             gdtcmd.BoardNode = LOCALBOARD;
5592             gdtcmd.Service = CACHESERVICE;
5593             gdtcmd.OpCode = GDT_FLUSH;
5594             if (ha->cache_feat & GDT_64BIT) {
5595                 gdtcmd.u.cache64.DeviceNo = i;
5596                 gdtcmd.u.cache64.BlockNo = 1;
5597                 gdtcmd.u.cache64.sg_canz = 0;
5598             } else {
5599                 gdtcmd.u.cache.DeviceNo = i;
5600                 gdtcmd.u.cache.BlockNo = 1;
5601                 gdtcmd.u.cache.sg_canz = 0;
5602             }
5603             TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
5604 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5605             gdth_do_req(srp, &gdtcmd, cmnd, 30);
5606 #else
5607             gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
5608 #endif
5609         }
5610     }
5611 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5612     scsi_release_request(srp);
5613     scsi_free_host_dev(sdev);
5614 #else
5615     scsi_release_command(scp);
5616     scsi_free_host_dev(sdev);
5617 #endif
5618 }
5619
5620 /* shutdown routine */
5621 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
5622 {
5623     int             hanum;
5624 #ifndef __alpha__
5625     gdth_cmd_str    gdtcmd;
5626 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5627     Scsi_Request    *srp;
5628     struct scsi_device     *sdev;
5629 #else
5630     Scsi_Cmnd       *scp;
5631     struct scsi_device     *sdev;
5632 #endif
5633     char            cmnd[MAX_COMMAND_SIZE];
5634 #endif
5635
5636     if (notifier_disabled)
5637         return NOTIFY_OK;
5638
5639     TRACE2(("gdth_halt() event %d\n",(int)event));
5640     if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5641         return NOTIFY_DONE;
5642
5643     notifier_disabled = 1;
5644     printk("GDT-HA: Flushing all host drives .. ");
5645     for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
5646         gdth_flush(hanum);
5647
5648 #ifndef __alpha__
5649         /* controller reset */
5650         memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5651         gdtcmd.BoardNode = LOCALBOARD;
5652         gdtcmd.Service = CACHESERVICE;
5653         gdtcmd.OpCode = GDT_RESET;
5654         TRACE2(("gdth_halt(): reset controller %d\n", hanum));
5655 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5656         sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
5657         srp  = scsi_allocate_request(sdev, GFP_KERNEL);
5658         if (!srp) {
5659             unregister_reboot_notifier(&gdth_notifier);
5660             return NOTIFY_OK;
5661         }
5662         srp->sr_cmd_len = 12;
5663         srp->sr_use_sg = 0;
5664         gdth_do_req(srp, &gdtcmd, cmnd, 10);
5665         scsi_release_request(srp);
5666         scsi_free_host_dev(sdev);
5667 #else
5668         sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
5669         scp  = scsi_allocate_device(sdev, 1, FALSE);
5670         if (!scp) {
5671             unregister_reboot_notifier(&gdth_notifier);
5672             return NOTIFY_OK;
5673         }
5674         scp->cmd_len = 12;
5675         scp->use_sg = 0;
5676         gdth_do_cmd(scp, &gdtcmd, cmnd, 10);
5677         scsi_release_command(scp);
5678         scsi_free_host_dev(sdev);
5679 #endif
5680 #endif
5681     }
5682     printk("Done.\n");
5683
5684 #ifdef GDTH_STATISTICS
5685     del_timer(&gdth_timer);
5686 #endif
5687     return NOTIFY_OK;
5688 }
5689
5690 static struct scsi_host_template driver_template = {
5691         .proc_name              = "gdth",
5692         .proc_info              = gdth_proc_info,
5693         .name                   = "GDT SCSI Disk Array Controller",
5694         .detect                 = gdth_detect,
5695         .release                = gdth_release,
5696         .info                   = gdth_info,
5697         .queuecommand           = gdth_queuecommand,
5698         .eh_bus_reset_handler   = gdth_eh_bus_reset,
5699         .bios_param             = gdth_bios_param,
5700         .can_queue              = GDTH_MAXCMDS,
5701         .this_id                = -1,
5702         .sg_tablesize           = GDTH_MAXSG,
5703         .cmd_per_lun            = GDTH_MAXC_P_L,
5704         .unchecked_isa_dma      = 1,
5705         .use_clustering         = ENABLE_CLUSTERING,
5706 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
5707         .use_new_eh_code        = 1,
5708 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
5709         .highmem_io             = 1,
5710 #endif
5711 #endif
5712 };
5713
5714 #include "scsi_module.c"
5715 #ifndef MODULE
5716 __setup("gdth=", option_setup);
5717 #endif