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) 1995-06 ICP vortex GmbH, Achim Leubner                 *
   8  * Copyright (C) 2002-04 Intel Corporation                              *
   9  * Copyright (C) 2003-06 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 2.4.x, 2.6.x supported                                  *
  31  *                                                                      *
  32  * $Log: gdth.c,v $
  33  * Revision 1.74  2006/04/10 13:44:47  achim
  34  * Community changes for 2.6.x
  35  * Kernel 2.2.x no longer supported
  36  * scsi_request interface removed, thanks to Christoph Hellwig
  37  *
  38  * Revision 1.73  2004/03/31 13:33:03  achim
  39  * Special command 0xfd implemented to detect 64-bit DMA support
  40  *
  41  * Revision 1.72  2004/03/17 08:56:04  achim
  42  * 64-bit DMA only enabled if FW >= x.43
  43  *
  44  * Revision 1.71  2004/03/05 15:51:29  achim
  45  * Screen service: separate message buffer, bugfixes
  46  *
  47  * Revision 1.70  2004/02/27 12:19:07  achim
  48  * Bugfix: Reset bit in config (0xfe) call removed
  49  *
  50  * Revision 1.69  2004/02/20 09:50:24  achim
  51  * Compatibility changes for kernels < 2.4.20
  52  * Bugfix screen service command size
  53  * pci_set_dma_mask() error handling added
  54  *
  55  * Revision 1.68  2004/02/19 15:46:54  achim
  56  * 64-bit DMA bugfixes
  57  * Drive size bugfix for drives > 1TB
  58  *
  59  * Revision 1.67  2004/01/14 13:11:57  achim
  60  * Tool access over /proc no longer supported
  61  * Bugfixes IOCTLs
  62  *
  63  * Revision 1.66  2003/12/19 15:04:06  achim
  64  * Bugfixes support for drives > 2TB
  65  *
  66  * Revision 1.65  2003/12/15 11:21:56  achim
  67  * 64-bit DMA support added
  68  * Support for drives > 2 TB implemented
  69  * Kernels 2.2.x, 2.4.x, 2.6.x supported
  70  *
  71  * Revision 1.64  2003/09/17 08:30:26  achim
  72  * EISA/ISA controller scan disabled
  73  * Command line switch probe_eisa_isa added
  74  *
  75  * Revision 1.63  2003/07/12 14:01:00  Daniele Bellucci <bellucda@tiscali.it>
  76  * Minor cleanups in gdth_ioctl.
  77  *
  78  * Revision 1.62  2003/02/27 15:01:59  achim
  79  * Dynamic DMA mapping implemented
  80  * New (character device) IOCTL interface added
  81  * Other controller related changes made
  82  *
  83  * Revision 1.61  2002/11/08 13:09:52  boji
  84  * Added support for XSCALE based RAID Controllers
  85  * Fixed SCREENSERVICE initialization in SMP cases
  86  * Added checks for gdth_polling before GDTH_HA_LOCK
  87  *
  88  * Revision 1.60  2002/02/05 09:35:22  achim
  89  * MODULE_LICENSE only if kernel >= 2.4.11
  90  *
  91  * Revision 1.59  2002/01/30 09:46:33  achim
  92  * Small changes
  93  *
  94  * Revision 1.58  2002/01/29 15:30:02  achim
  95  * Set default value of shared_access to Y
  96  * New status S_CACHE_RESERV for clustering added
  97  *
  98  * Revision 1.57  2001/08/21 11:16:35  achim
  99  * Bugfix free_irq()
 100  *
 101  * Revision 1.56  2001/08/09 11:19:39  achim
 102  * Scsi_Host_Template changes
 103  *
 104  * Revision 1.55  2001/08/09 10:11:28  achim
 105  * Command HOST_UNFREEZE_IO before cache service init.
 106  *
 107  * Revision 1.54  2001/07/20 13:48:12  achim
 108  * Expand: gdth_analyse_hdrive() removed
 109  *
 110  * Revision 1.53  2001/07/17 09:52:49  achim
 111  * Small OEM related change
 112  *
 113  * Revision 1.52  2001/06/19 15:06:20  achim
 114  * New host command GDT_UNFREEZE_IO added
 115  *
 116  * Revision 1.51  2001/05/22 06:42:37  achim
 117  * PCI: Subdevice ID added
 118  *
 119  * Revision 1.50  2001/05/17 13:42:16  achim
 120  * Support for Intel Storage RAID Controllers added
 121  *
 122  * Revision 1.50  2001/05/17 12:12:34  achim
 123  * Support for Intel Storage RAID Controllers added
 124  *
 125  * Revision 1.49  2001/03/15 15:07:17  achim
 126  * New __setup interface for boot command line options added
 127  *
 128  * Revision 1.48  2001/02/06 12:36:28  achim
 129  * Bugfix Cluster protocol
 130  *
 131  * Revision 1.47  2001/01/10 14:42:06  achim
 132  * New switch shared_access added
 133  *
 134  * Revision 1.46  2001/01/09 08:11:35  achim
 135  * gdth_command() removed
 136  * meaning of Scsi_Pointer members changed
 137  *
 138  * Revision 1.45  2000/11/16 12:02:24  achim
 139  * Changes for kernel 2.4
 140  *
 141  * Revision 1.44  2000/10/11 08:44:10  achim
 142  * Clustering changes: New flag media_changed added
 143  *
 144  * Revision 1.43  2000/09/20 12:59:01  achim
 145  * DPMEM remap functions for all PCI controller types implemented
 146  * Small changes for ia64 platform
 147  *
 148  * Revision 1.42  2000/07/20 09:04:50  achim
 149  * Small changes for kernel 2.4
 150  *
 151  * Revision 1.41  2000/07/04 14:11:11  achim
 152  * gdth_analyse_hdrive() added to rescan drives after online expansion
 153  *
 154  * Revision 1.40  2000/06/27 11:24:16  achim
 155  * Changes Clustering, Screenservice
 156  *
 157  * Revision 1.39  2000/06/15 13:09:04  achim
 158  * Changes for gdth_do_cmd()
 159  *
 160  * Revision 1.38  2000/06/15 12:08:43  achim
 161  * Bugfix gdth_sync_event(), service SCREENSERVICE
 162  * Data direction for command 0xc2 changed to DOU
 163  *
 164  * Revision 1.37  2000/05/25 13:50:10  achim
 165  * New driver parameter virt_ctr added
 166  *
 167  * Revision 1.36  2000/05/04 08:50:46  achim
 168  * Event buffer now in gdth_ha_str
 169  *
 170  * Revision 1.35  2000/03/03 10:44:08  achim
 171  * New event_string only valid for the RP controller family
 172  *
 173  * Revision 1.34  2000/03/02 14:55:29  achim
 174  * New mechanism for async. event handling implemented
 175  *
 176  * Revision 1.33  2000/02/21 15:37:37  achim
 177  * Bugfix Alpha platform + DPMEM above 4GB
 178  *
 179  * Revision 1.32  2000/02/14 16:17:37  achim
 180  * Bugfix sense_buffer[] + raw devices
 181  *
 182  * Revision 1.31  2000/02/10 10:29:00  achim
 183  * Delete sense_buffer[0], if command OK
 184  *
 185  * Revision 1.30  1999/11/02 13:42:39  achim
 186  * ARRAY_DRV_LIST2 implemented
 187  * Now 255 log. and 100 host drives supported
 188  *
 189  * Revision 1.29  1999/10/05 13:28:47  achim
 190  * GDT_CLUST_RESET added
 191  *
 192  * Revision 1.28  1999/08/12 13:44:54  achim
 193  * MOUNTALL removed
 194  * Cluster drives -> removeable drives
 195  *
 196  * Revision 1.27  1999/06/22 07:22:38  achim
 197  * Small changes
 198  *
 199  * Revision 1.26  1999/06/10 16:09:12  achim
 200  * Cluster Host Drive support: Bugfixes
 201  *
 202  * Revision 1.25  1999/06/01 16:03:56  achim
 203  * gdth_init_pci(): Manipulate config. space to start RP controller
 204  *
 205  * Revision 1.24  1999/05/26 11:53:06  achim
 206  * Cluster Host Drive support added
 207  *
 208  * Revision 1.23  1999/03/26 09:12:31  achim
 209  * Default value for hdr_channel set to 0
 210  *
 211  * Revision 1.22  1999/03/22 16:27:16  achim
 212  * Bugfix: gdth_store_event() must not be locked with GDTH_LOCK_HA()
 213  *
 214  * Revision 1.21  1999/03/16 13:40:34  achim
 215  * Problems with reserved drives solved
 216  * gdth_eh_bus_reset() implemented
 217  *
 218  * Revision 1.20  1999/03/10 09:08:13  achim
 219  * Bugfix: Corrections in gdth_direction_tab[] made
 220  * Bugfix: Increase command timeout (gdth_update_timeout()) NOT in gdth_putq()
 221  *
 222  * Revision 1.19  1999/03/05 14:38:16  achim
 223  * Bugfix: Heads/Sectors mapping for reserved devices possibly wrong
 224  * -> gdth_eval_mapping() implemented, changes in gdth_bios_param()
 225  * INIT_RETRIES set to 100s to avoid DEINIT-Timeout for controllers
 226  * with BIOS disabled and memory test set to Intensive
 227  * Enhanced /proc support
 228  *
 229  * Revision 1.18  1999/02/24 09:54:33  achim
 230  * Command line parameter hdr_channel implemented
 231  * Bugfix for EISA controllers + Linux 2.2.x
 232  *
 233  * Revision 1.17  1998/12/17 15:58:11  achim
 234  * Command line parameters implemented
 235  * Changes for Alpha platforms
 236  * PCI controller scan changed
 237  * SMP support improved (spin_lock_irqsave(),...)
 238  * New async. events, new scan/reserve commands included
 239  *
 240  * Revision 1.16  1998/09/28 16:08:46  achim
 241  * GDT_PCIMPR: DPMEM remapping, if required
 242  * mdelay() added
 243  *
 244  * Revision 1.15  1998/06/03 14:54:06  achim
 245  * gdth_delay(), gdth_flush() implemented
 246  * Bugfix: gdth_release() changed
 247  *
 248  * Revision 1.14  1998/05/22 10:01:17  achim
 249  * mj: pcibios_strerror() removed
 250  * Improved SMP support (if version >= 2.1.95)
 251  * gdth_halt(): halt_called flag added (if version < 2.1)
 252  *
 253  * Revision 1.13  1998/04/16 09:14:57  achim
 254  * Reserve drives (for raw service) implemented
 255  * New error handling code enabled
 256  * Get controller name from board_info() IOCTL
 257  * Final round of PCI device driver patches by Martin Mares
 258  *
 259  * Revision 1.12  1998/03/03 09:32:37  achim
 260  * Fibre channel controller support added
 261  *
 262  * Revision 1.11  1998/01/27 16:19:14  achim
 263  * SA_SHIRQ added
 264  * add_timer()/del_timer() instead of GDTH_TIMER
 265  * scsi_add_timer()/scsi_del_timer() instead of SCSI_TIMER
 266  * New error handling included
 267  *
 268  * Revision 1.10  1997/10/31 12:29:57  achim
 269  * Read heads/sectors from host drive
 270  *
 271  * Revision 1.9  1997/09/04 10:07:25  achim
 272  * IO-mapping with virt_to_bus(), gdth_readb(), gdth_writeb(), ...
 273  * register_reboot_notifier() to get a notify on shutown used
 274  *
 275  * Revision 1.8  1997/04/02 12:14:30  achim
 276  * Version 1.00 (see gdth.h), tested with kernel 2.0.29
 277  *
 278  * Revision 1.7  1997/03/12 13:33:37  achim
 279  * gdth_reset() changed, new async. events
 280  *
 281  * Revision 1.6  1997/03/04 14:01:11  achim
 282  * Shutdown routine gdth_halt() implemented
 283  *
 284  * Revision 1.5  1997/02/21 09:08:36  achim
 285  * New controller included (RP, RP1, RP2 series)
 286  * IOCTL interface implemented
 287  *
 288  * Revision 1.4  1996/07/05 12:48:55  achim
 289  * Function gdth_bios_param() implemented
 290  * New constant GDTH_MAXC_P_L inserted
 291  * GDT_WRITE_THR, GDT_EXT_INFO implemented
 292  * Function gdth_reset() changed
 293  *
 294  * Revision 1.3  1996/05/10 09:04:41  achim
 295  * Small changes for Linux 1.2.13
 296  *
 297  * Revision 1.2  1996/05/09 12:45:27  achim
 298  * Loadable module support implemented
 299  * /proc support corrections made
 300  *
 301  * Revision 1.1  1996/04/11 07:35:57  achim
 302  * Initial revision
 303  *
 304  ************************************************************************/
 305
 306 /* All GDT Disk Array Controllers are fully supported by this driver.
 307  * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
 308  * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
 309  * list of all controller types.
 310  *
 311  * If you have one or more GDT3000/3020 EISA controllers with
 312  * controller BIOS disabled, you have to set the IRQ values with the
 313  * command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
 314  * the IRQ values for the EISA controllers.
 315  *
 316  * After the optional list of IRQ values, other possible
 317  * command line options are:
 318  * disable:Y                    disable driver
 319  * disable:N                    enable driver
 320  * reserve_mode:0               reserve no drives for the raw service
 321  * reserve_mode:1               reserve all not init., removable drives
 322  * reserve_mode:2               reserve all not init. drives
 323  * reserve_list:h,b,t,l,h,b,t,l,...     reserve particular drive(s) with
 324  *                              h- controller no., b- channel no.,
 325  *                              t- target ID, l- LUN
 326  * reverse_scan:Y               reverse scan order for PCI controllers
 327  * reverse_scan:N               scan PCI controllers like BIOS
 328  * max_ids:x                    x - target ID count per channel (1..MAXID)
 329  * rescan:Y                     rescan all channels/IDs
 330  * rescan:N                     use all devices found until now
 331  * virt_ctr:Y                   map every channel to a virtual controller
 332  * virt_ctr:N                   use multi channel support
 333  * hdr_channel:x                x - number of virtual bus for host drives
 334  * shared_access:Y              disable driver reserve/release protocol to
 335  *                              access a shared resource from several nodes,
 336  *                              appropriate controller firmware required
 337  * shared_access:N              enable driver reserve/release protocol
 338  * probe_eisa_isa:Y             scan for EISA/ISA controllers
 339  * probe_eisa_isa:N             do not scan for EISA/ISA controllers
 340  * force_dma32:Y                use only 32 bit DMA mode
 341  * force_dma32:N                use 64 bit DMA mode, if supported
 342  *
 343  * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
 344  *                          max_ids:127,rescan:N,virt_ctr:N,hdr_channel:0,
 345  *                          shared_access:Y,probe_eisa_isa:N,force_dma32:N".
 346  * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
 347  *
 348  * When loading the gdth driver as a module, the same options are available.
 349  * You can set the IRQs with "IRQ=...". However, the syntax to specify the
 350  * options changes slightly. You must replace all ',' between options
 351  * with ' ' and all ':' with '=' and you must use
 352  * '1' in place of 'Y' and '0' in place of 'N'.
 353  *
 354  * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
 355  *           max_ids=127 rescan=0 virt_ctr=0 hdr_channel=0 shared_access=0
 356  *           probe_eisa_isa=0 force_dma32=0"
 357  * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
 358  */
 359
 360 /* The meaning of the Scsi_Pointer members in this driver is as follows:
 361  * ptr:                     Chaining
 362  * this_residual:           Command priority
 363  * buffer:                  phys. DMA sense buffer
 364  * dma_handle:              phys. DMA buffer (kernel >= 2.4.0)
 365  * buffers_residual:        Timeout value
 366  * Status:                  Command status (gdth_do_cmd()), DMA mem. mappings
 367  * Message:                 Additional info (gdth_do_cmd()), DMA direction
 368  * have_data_in:            Flag for gdth_wait_completion()
 369  * sent_command:            Opcode special command
 370  * phase:                   Service/parameter/return code special command
 371  */
 372
 373
 374 /* interrupt coalescing */
 375 /* #define INT_COAL */
 376
 377 /* statistics */
 378 #define GDTH_STATISTICS
 379
 380 #include <linux/module.h>
 381
 382 #include <linux/version.h>
 383 #include <linux/kernel.h>
 384 #include <linux/types.h>
 385 #include <linux/pci.h>
 386 #include <linux/string.h>
 387 #include <linux/ctype.h>
 388 #include <linux/ioport.h>
 389 #include <linux/delay.h>
 390 #include <linux/interrupt.h>
 391 #include <linux/in.h>
 392 #include <linux/proc_fs.h>
 393 #include <linux/time.h>
 394 #include <linux/timer.h>
 395 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)
 396 #include <linux/dma-mapping.h>
 397 #else
 398 #define DMA_32BIT_MASK  0x00000000ffffffffULL
 399 #define DMA_64BIT_MASK  0xffffffffffffffffULL
 400 #endif
 401
 402 #ifdef GDTH_RTC
 403 #include <linux/mc146818rtc.h>
 404 #endif
 405 #include <linux/reboot.h>
 406
 407 #include <asm/dma.h>
 408 #include <asm/system.h>
 409 #include <asm/io.h>
 410 #include <asm/uaccess.h>
 411 #include <linux/spinlock.h>
 412 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 413 #include <linux/blkdev.h>
 414 #else
 415 #include <linux/blk.h>
 416 #include "sd.h"
 417 #endif
 418
 419 #include "scsi.h"
 420 #include <scsi/scsi_host.h>
 421 #include "gdth_kcompat.h"
 422 #include "gdth.h"
 423
 424 static void gdth_delay(int milliseconds);
 425 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
 426 static irqreturn_t gdth_interrupt(int irq, void *dev_id);
 427 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp);
 428 static int gdth_async_event(int hanum);
 429 static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
 430
 431 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority);
 432 static void gdth_next(int hanum);
 433 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b);
 434 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp);
 435 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
 436                                       ushort idx, gdth_evt_data *evt);
 437 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
 438 static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
 439                                gdth_evt_str *estr);
 440 static void gdth_clear_events(void);
 441
 442 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
 443                                     char *buffer,ushort count);
 444 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 445 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
 446
 447 static int gdth_search_eisa(ushort eisa_adr);
 448 static int gdth_search_isa(ulong32 bios_adr);
 449 static int gdth_search_pci(gdth_pci_str *pcistr);
 450 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 451                             ushort vendor, ushort dev);
 452 static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
 453 static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
 454 static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
 455 static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 456
 457 static void gdth_enable_int(int hanum);
 458 static int gdth_get_status(unchar *pIStatus,int irq);
 459 static int gdth_test_busy(int hanum);
 460 static int gdth_get_cmd_index(int hanum);
 461 static void gdth_release_event(int hanum);
 462 static int gdth_wait(int hanum,int index,ulong32 time);
 463 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
 464                              ulong64 p2,ulong64 p3);
 465 static int gdth_search_drives(int hanum);
 466 static int gdth_analyse_hdrive(int hanum, ushort hdrive);
 467
 468 static const char *gdth_ctr_name(int hanum);
 469
 470 static int gdth_open(struct inode *inode, struct file *filep);
 471 static int gdth_close(struct inode *inode, struct file *filep);
 472 static int gdth_ioctl(struct inode *inode, struct file *filep,
 473                       unsigned int cmd, unsigned long arg);
 474
 475 static void gdth_flush(int hanum);
 476 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
 477 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *));
 478 static void gdth_scsi_done(struct scsi_cmnd *scp);
 479
 480 #ifdef DEBUG_GDTH
 481 static unchar   DebugState = DEBUG_GDTH;
 482
 483 #ifdef __SERIAL__
 484 #define MAX_SERBUF 160
 485 static void ser_init(void);
 486 static void ser_puts(char *str);
 487 static void ser_putc(char c);
 488 static int  ser_printk(const char *fmt, ...);
 489 static char strbuf[MAX_SERBUF+1];
 490 #ifdef __COM2__
 491 #define COM_BASE 0x2f8
 492 #else
 493 #define COM_BASE 0x3f8
 494 #endif
 495 static void ser_init()
 496 {
 497     unsigned port=COM_BASE;
 498
 499     outb(0x80,port+3);
 500     outb(0,port+1);
 501     /* 19200 Baud, if 9600: outb(12,port) */
 502     outb(6, port);
 503     outb(3,port+3);
 504     outb(0,port+1);
 505     /*
 506     ser_putc('I');
 507     ser_putc(' ');
 508     */
 509 }
 510
 511 static void ser_puts(char *str)
 512 {
 513     char *ptr;
 514
 515     ser_init();
 516     for (ptr=str;*ptr;++ptr)
 517         ser_putc(*ptr);
 518 }
 519
 520 static void ser_putc(char c)
 521 {
 522     unsigned port=COM_BASE;
 523
 524     while ((inb(port+5) & 0x20)==0);
 525     outb(c,port);
 526     if (c==0x0a)
 527     {
 528         while ((inb(port+5) & 0x20)==0);
 529         outb(0x0d,port);
 530     }
 531 }
 532
 533 static int ser_printk(const char *fmt, ...)
 534 {
 535     va_list args;
 536     int i;
 537
 538     va_start(args,fmt);
 539     i = vsprintf(strbuf,fmt,args);
 540     ser_puts(strbuf);
 541     va_end(args);
 542     return i;
 543 }
 544
 545 #define TRACE(a)    {if (DebugState==1) {ser_printk a;}}
 546 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {ser_printk a;}}
 547 #define TRACE3(a)   {if (DebugState!=0) {ser_printk a;}}
 548
 549 #else /* !__SERIAL__ */
 550 #define TRACE(a)    {if (DebugState==1) {printk a;}}
 551 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {printk a;}}
 552 #define TRACE3(a)   {if (DebugState!=0) {printk a;}}
 553 #endif
 554
 555 #else /* !DEBUG */
 556 #define TRACE(a)
 557 #define TRACE2(a)
 558 #define TRACE3(a)
 559 #endif
 560
 561 #ifdef GDTH_STATISTICS
 562 static ulong32 max_rq=0, max_index=0, max_sg=0;
 563 #ifdef INT_COAL
 564 static ulong32 max_int_coal=0;
 565 #endif
 566 static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
 567 static struct timer_list gdth_timer;
 568 #endif
 569
 570 #define PTR2USHORT(a)   (ushort)(ulong)(a)
 571 #define GDTOFFSOF(a,b)  (size_t)&(((a*)0)->b)
 572 #define INDEX_OK(i,t)   ((i)<ARRAY_SIZE(t))
 573
 574 #define NUMDATA(a)      ( (gdth_num_str  *)((a)->hostdata))
 575 #define HADATA(a)       (&((gdth_ext_str *)((a)->hostdata))->haext)
 576 #define CMDDATA(a)      (&((gdth_ext_str *)((a)->hostdata))->cmdext)
 577
 578 #define BUS_L2P(a,b)    ((b)>(a)->virt_bus ? (b-1):(b))
 579
 580 #define gdth_readb(addr)        readb(addr)
 581 #define gdth_readw(addr)        readw(addr)
 582 #define gdth_readl(addr)        readl(addr)
 583 #define gdth_writeb(b,addr)     writeb((b),(addr))
 584 #define gdth_writew(b,addr)     writew((b),(addr))
 585 #define gdth_writel(b,addr)     writel((b),(addr))
 586
 587 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 588 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
 589 static unchar   gdth_polling;                           /* polling if TRUE */
 590 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 591 static int      wait_index,wait_hanum;                  /* gdth_wait() */
 592 static int      gdth_ctr_count  = 0;                    /* controller count */
 593 static int      gdth_ctr_vcount = 0;                    /* virt. ctr. count */
 594 static int      gdth_ctr_released = 0;                  /* gdth_release() */
 595 static struct Scsi_Host *gdth_ctr_tab[MAXHA];           /* controller table */
 596 static struct Scsi_Host *gdth_ctr_vtab[MAXHA*MAXBUS];   /* virt. ctr. table */
 597 static unchar   gdth_write_through = FALSE;             /* write through */
 598 static gdth_evt_str ebuffer[MAX_EVENTS];                /* event buffer */
 599 static int elastidx;
 600 static int eoldidx;
 601 static int major;
 602
 603 #define DIN     1                               /* IN data direction */
 604 #define DOU     2                               /* OUT data direction */
 605 #define DNO     DIN                             /* no data transfer */
 606 #define DUN     DIN                             /* unknown data direction */
 607 static unchar gdth_direction_tab[0x100] = {
 608     DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
 609     DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
 610     DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
 611     DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
 612     DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
 613     DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
 614     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 615     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 616     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 617     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
 618     DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
 619     DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 620     DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 621     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 622     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 623     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
 624 };
 625
 626 /* LILO and modprobe/insmod parameters */
 627 /* IRQ list for GDT3000/3020 EISA controllers */
 628 static int irq[MAXHA] __initdata =
 629 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 630  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 631 /* disable driver flag */
 632 static int disable __initdata = 0;
 633 /* reserve flag */
 634 static int reserve_mode = 1;
 635 /* reserve list */
 636 static int reserve_list[MAX_RES_ARGS] =
 637 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 638  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 639  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 640 /* scan order for PCI controllers */
 641 static int reverse_scan = 0;
 642 /* virtual channel for the host drives */
 643 static int hdr_channel = 0;
 644 /* max. IDs per channel */
 645 static int max_ids = MAXID;
 646 /* rescan all IDs */
 647 static int rescan = 0;
 648 /* map channels to virtual controllers */
 649 static int virt_ctr = 0;
 650 /* shared access */
 651 static int shared_access = 1;
 652 /* enable support for EISA and ISA controllers */
 653 static int probe_eisa_isa = 0;
 654 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
 655 static int force_dma32 = 0;
 656
 657 /* parameters for modprobe/insmod */
 658 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11)
 659 module_param_array(irq, int, NULL, 0);
 660 module_param(disable, int, 0);
 661 module_param(reserve_mode, int, 0);
 662 module_param_array(reserve_list, int, NULL, 0);
 663 module_param(reverse_scan, int, 0);
 664 module_param(hdr_channel, int, 0);
 665 module_param(max_ids, int, 0);
 666 module_param(rescan, int, 0);
 667 module_param(virt_ctr, int, 0);
 668 module_param(shared_access, int, 0);
 669 module_param(probe_eisa_isa, int, 0);
 670 module_param(force_dma32, int, 0);
 671 #else
 672 MODULE_PARM(irq, "i");
 673 MODULE_PARM(disable, "i");
 674 MODULE_PARM(reserve_mode, "i");
 675 MODULE_PARM(reserve_list, "4-" __MODULE_STRING(MAX_RES_ARGS) "i");
 676 MODULE_PARM(reverse_scan, "i");
 677 MODULE_PARM(hdr_channel, "i");
 678 MODULE_PARM(max_ids, "i");
 679 MODULE_PARM(rescan, "i");
 680 MODULE_PARM(virt_ctr, "i");
 681 MODULE_PARM(shared_access, "i");
 682 MODULE_PARM(probe_eisa_isa, "i");
 683 MODULE_PARM(force_dma32, "i");
 684 #endif
 685 MODULE_AUTHOR("Achim Leubner");
 686 MODULE_LICENSE("GPL");
 687
 688 /* ioctl interface */
 689 static const struct file_operations gdth_fops = {
 690     .ioctl   = gdth_ioctl,
 691     .open    = gdth_open,
 692     .release = gdth_close,
 693 };
 694
 695 #include "gdth_proc.h"
 696 #include "gdth_proc.c"
 697
 698 /* notifier block to get a notify on system shutdown/halt/reboot */
 699 static struct notifier_block gdth_notifier = {
 700     gdth_halt, NULL, 0
 701 };
 702 static int notifier_disabled = 0;
 703
 704 static void gdth_delay(int milliseconds)
 705 {
 706     if (milliseconds == 0) {
 707         udelay(1);
 708     } else {
 709         mdelay(milliseconds);
 710     }
 711 }
 712
 713 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 714 static void gdth_scsi_done(struct scsi_cmnd *scp)
 715 {
 716     TRACE2(("gdth_scsi_done()\n"));
 717
 718     if (scp->request)
 719         complete((struct completion *)scp->request);
 720 }
 721
 722 int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
 723                    int timeout, u32 *info)
 724 {
 725     Scsi_Cmnd *scp;
 726     DECLARE_COMPLETION_ONSTACK(wait);
 727     int rval;
 728
 729     scp = kmalloc(sizeof(*scp), GFP_KERNEL);
 730     if (!scp)
 731         return -ENOMEM;
 732     memset(scp, 0, sizeof(*scp));
 733     scp->device = sdev;
 734     /* use request field to save the ptr. to completion struct. */
 735     scp->request = (struct request *)&wait;
 736     scp->timeout_per_command = timeout*HZ;
 737     scp->request_buffer = gdtcmd;
 738     scp->cmd_len = 12;
 739     memcpy(scp->cmnd, cmnd, 12);
 740     scp->SCp.this_residual = IOCTL_PRI;   /* priority */
 741     scp->done = gdth_scsi_done; /* some fn. test this */
 742     gdth_queuecommand(scp, gdth_scsi_done);
 743     wait_for_completion(&wait);
 744
 745     rval = scp->SCp.Status;
 746     if (info)
 747         *info = scp->SCp.Message;
 748     kfree(scp);
 749     return rval;
 750 }
 751 #else
 752 static void gdth_scsi_done(Scsi_Cmnd *scp)
 753 {
 754     TRACE2(("gdth_scsi_done()\n"));
 755
 756     scp->request.rq_status = RQ_SCSI_DONE;
 757     if (scp->request.waiting)
 758         complete(scp->request.waiting);
 759 }
 760
 761 int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
 762                    int timeout, u32 *info)
 763 {
 764     Scsi_Cmnd *scp = scsi_allocate_device(sdev, 1, FALSE);
 765     unsigned bufflen = gdtcmd ? sizeof(gdth_cmd_str) : 0;
 766     DECLARE_COMPLETION_ONSTACK(wait);
 767     int rval;
 768
 769     if (!scp)
 770         return -ENOMEM;
 771     scp->cmd_len = 12;
 772     scp->use_sg = 0;
 773     scp->SCp.this_residual = IOCTL_PRI;   /* priority */
 774     scp->request.rq_status = RQ_SCSI_BUSY;
 775     scp->request.waiting = &wait;
 776     scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
 777     wait_for_completion(&wait);
 778
 779     rval = scp->SCp.Status;
 780     if (info)
 781         *info = scp->SCp.Message;
 782
 783     scsi_release_command(scp);
 784     return rval;
 785 }
 786 #endif
 787
 788 int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
 789                  int timeout, u32 *info)
 790 {
 791     struct scsi_device *sdev = scsi_get_host_dev(shost);
 792     int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
 793
 794     scsi_free_host_dev(sdev);
 795     return rval;
 796 }
 797
 798 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
 799 {
 800     *cyls = size /HEADS/SECS;
 801     if (*cyls <= MAXCYLS) {
 802         *heads = HEADS;
 803         *secs = SECS;
 804     } else {                                        /* too high for 64*32 */
 805         *cyls = size /MEDHEADS/MEDSECS;
 806         if (*cyls <= MAXCYLS) {
 807             *heads = MEDHEADS;
 808             *secs = MEDSECS;
 809         } else {                                    /* too high for 127*63 */
 810             *cyls = size /BIGHEADS/BIGSECS;
 811             *heads = BIGHEADS;
 812             *secs = BIGSECS;
 813         }
 814     }
 815 }
 816
 817 /* controller search and initialization functions */
 818
 819 static int __init gdth_search_eisa(ushort eisa_adr)
 820 {
 821     ulong32 id;
 822
 823     TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
 824     id = inl(eisa_adr+ID0REG);
 825     if (id == GDT3A_ID || id == GDT3B_ID) {     /* GDT3000A or GDT3000B */
 826         if ((inb(eisa_adr+EISAREG) & 8) == 0)
 827             return 0;                           /* not EISA configured */
 828         return 1;
 829     }
 830     if (id == GDT3_ID)                          /* GDT3000 */
 831         return 1;
 832
 833     return 0;
 834 }
 835
 836
 837 static int __init gdth_search_isa(ulong32 bios_adr)
 838 {
 839     void __iomem *addr;
 840     ulong32 id;
 841
 842     TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
 843     if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
 844         id = gdth_readl(addr);
 845         iounmap(addr);
 846         if (id == GDT2_ID)                          /* GDT2000 */
 847             return 1;
 848     }
 849     return 0;
 850 }
 851
 852
 853 static int __init gdth_search_pci(gdth_pci_str *pcistr)
 854 {
 855     ushort device, cnt;
 856
 857     TRACE(("gdth_search_pci()\n"));
 858
 859     cnt = 0;
 860     for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
 861         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 862     for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP;
 863          device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
 864         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 865     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 866                     PCI_DEVICE_ID_VORTEX_GDTNEWRX);
 867     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 868                     PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
 869     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 870                     PCI_DEVICE_ID_INTEL_SRC);
 871     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 872                     PCI_DEVICE_ID_INTEL_SRC_XSCALE);
 873     return cnt;
 874 }
 875
 876 /* Vortex only makes RAID controllers.
 877  * We do not really want to specify all 550 ids here, so wildcard match.
 878  */
 879 static struct pci_device_id gdthtable[] __attribute_used__ = {
 880     {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
 881     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID},
 882     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID},
 883     {0}
 884 };
 885 MODULE_DEVICE_TABLE(pci,gdthtable);
 886
 887 static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 888                                    ushort vendor, ushort device)
 889 {
 890     ulong base0, base1, base2;
 891     struct pci_dev *pdev;
 892
 893     TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
 894           *cnt, vendor, device));
 895
 896     pdev = NULL;
 897     while ((pdev = pci_find_device(vendor, device, pdev))
 898            != NULL) {
 899         if (pci_enable_device(pdev))
 900             continue;
 901         if (*cnt >= MAXHA)
 902             return;
 903         /* GDT PCI controller found, resources are already in pdev */
 904         pcistr[*cnt].pdev = pdev;
 905         pcistr[*cnt].vendor_id = vendor;
 906         pcistr[*cnt].device_id = device;
 907         pcistr[*cnt].subdevice_id = pdev->subsystem_device;
 908         pcistr[*cnt].bus = pdev->bus->number;
 909         pcistr[*cnt].device_fn = pdev->devfn;
 910         pcistr[*cnt].irq = pdev->irq;
 911         base0 = pci_resource_flags(pdev, 0);
 912         base1 = pci_resource_flags(pdev, 1);
 913         base2 = pci_resource_flags(pdev, 2);
 914         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 915             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 916             if (!(base0 & IORESOURCE_MEM))
 917                 continue;
 918             pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
 919         } else {                                  /* GDT6110, GDT6120, .. */
 920             if (!(base0 & IORESOURCE_MEM) ||
 921                 !(base2 & IORESOURCE_MEM) ||
 922                 !(base1 & IORESOURCE_IO))
 923                 continue;
 924             pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
 925             pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
 926             pcistr[*cnt].io    = pci_resource_start(pdev, 1);
 927         }
 928         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 929                 pcistr[*cnt].bus, PCI_SLOT(pcistr[*cnt].device_fn),
 930                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 931         (*cnt)++;
 932     }
 933 }
 934
 935
 936 static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
 937 {
 938     gdth_pci_str temp;
 939     int i, changed;
 940
 941     TRACE(("gdth_sort_pci() cnt %d\n",cnt));
 942     if (cnt == 0)
 943         return;
 944
 945     do {
 946         changed = FALSE;
 947         for (i = 0; i < cnt-1; ++i) {
 948             if (!reverse_scan) {
 949                 if ((pcistr[i].bus > pcistr[i+1].bus) ||
 950                     (pcistr[i].bus == pcistr[i+1].bus &&
 951                      PCI_SLOT(pcistr[i].device_fn) >
 952                      PCI_SLOT(pcistr[i+1].device_fn))) {
 953                     temp = pcistr[i];
 954                     pcistr[i] = pcistr[i+1];
 955                     pcistr[i+1] = temp;
 956                     changed = TRUE;
 957                 }
 958             } else {
 959                 if ((pcistr[i].bus < pcistr[i+1].bus) ||
 960                     (pcistr[i].bus == pcistr[i+1].bus &&
 961                      PCI_SLOT(pcistr[i].device_fn) <
 962                      PCI_SLOT(pcistr[i+1].device_fn))) {
 963                     temp = pcistr[i];
 964                     pcistr[i] = pcistr[i+1];
 965                     pcistr[i+1] = temp;
 966                     changed = TRUE;
 967                 }
 968             }
 969         }
 970     } while (changed);
 971 }
 972
 973
 974 static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
 975 {
 976     ulong32 retries,id;
 977     unchar prot_ver,eisacf,i,irq_found;
 978
 979     TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
 980
 981     /* disable board interrupts, deinitialize services */
 982     outb(0xff,eisa_adr+EDOORREG);
 983     outb(0x00,eisa_adr+EDENABREG);
 984     outb(0x00,eisa_adr+EINTENABREG);
 985
 986     outb(0xff,eisa_adr+LDOORREG);
 987     retries = INIT_RETRIES;
 988     gdth_delay(20);
 989     while (inb(eisa_adr+EDOORREG) != 0xff) {
 990         if (--retries == 0) {
 991             printk("GDT-EISA: Initialization error (DEINIT failed)\n");
 992             return 0;
 993         }
 994         gdth_delay(1);
 995         TRACE2(("wait for DEINIT: retries=%d\n",retries));
 996     }
 997     prot_ver = inb(eisa_adr+MAILBOXREG);
 998     outb(0xff,eisa_adr+EDOORREG);
 999     if (prot_ver != PROTOCOL_VERSION) {
1000         printk("GDT-EISA: Illegal protocol version\n");
1001         return 0;
1002     }
1003     ha->bmic = eisa_adr;
1004     ha->brd_phys = (ulong32)eisa_adr >> 12;
1005
1006     outl(0,eisa_adr+MAILBOXREG);
1007     outl(0,eisa_adr+MAILBOXREG+4);
1008     outl(0,eisa_adr+MAILBOXREG+8);
1009     outl(0,eisa_adr+MAILBOXREG+12);
1010
1011     /* detect IRQ */
1012     if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
1013         ha->oem_id = OEM_ID_ICP;
1014         ha->type = GDT_EISA;
1015         ha->stype = id;
1016         outl(1,eisa_adr+MAILBOXREG+8);
1017         outb(0xfe,eisa_adr+LDOORREG);
1018         retries = INIT_RETRIES;
1019         gdth_delay(20);
1020         while (inb(eisa_adr+EDOORREG) != 0xfe) {
1021             if (--retries == 0) {
1022                 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
1023                 return 0;
1024             }
1025             gdth_delay(1);
1026         }
1027         ha->irq = inb(eisa_adr+MAILBOXREG);
1028         outb(0xff,eisa_adr+EDOORREG);
1029         TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
1030         /* check the result */
1031         if (ha->irq == 0) {
1032                 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
1033                 for (i = 0, irq_found = FALSE;
1034                      i < MAXHA && irq[i] != 0xff; ++i) {
1035                 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
1036                     irq_found = TRUE;
1037                     break;
1038                 }
1039                 }
1040             if (irq_found) {
1041                 ha->irq = irq[i];
1042                 irq[i] = 0;
1043                 printk("GDT-EISA: Can not detect controller IRQ,\n");
1044                 printk("Use IRQ setting from command line (IRQ = %d)\n",
1045                        ha->irq);
1046             } else {
1047                 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
1048                 printk("the controller BIOS or use command line parameters\n");
1049                 return 0;
1050             }
1051         }
1052     } else {
1053         eisacf = inb(eisa_adr+EISAREG) & 7;
1054         if (eisacf > 4)                         /* level triggered */
1055             eisacf -= 4;
1056         ha->irq = gdth_irq_tab[eisacf];
1057         ha->oem_id = OEM_ID_ICP;
1058         ha->type = GDT_EISA;
1059         ha->stype = id;
1060     }
1061
1062     ha->dma64_support = 0;
1063     return 1;
1064 }
1065
1066
1067 static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
1068 {
1069     register gdt2_dpram_str __iomem *dp2_ptr;
1070     int i;
1071     unchar irq_drq,prot_ver;
1072     ulong32 retries;
1073
1074     TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
1075
1076     ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
1077     if (ha->brd == NULL) {
1078         printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
1079         return 0;
1080     }
1081     dp2_ptr = ha->brd;
1082     gdth_writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
1083     /* reset interface area */
1084     memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
1085     if (gdth_readl(&dp2_ptr->u) != 0) {
1086         printk("GDT-ISA: Initialization error (DPMEM write error)\n");
1087         iounmap(ha->brd);
1088         return 0;
1089     }
1090
1091     /* disable board interrupts, read DRQ and IRQ */
1092     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1093     gdth_writeb(0x00, &dp2_ptr->io.irqen);
1094     gdth_writeb(0x00, &dp2_ptr->u.ic.S_Status);
1095     gdth_writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
1096
1097     irq_drq = gdth_readb(&dp2_ptr->io.rq);
1098     for (i=0; i<3; ++i) {
1099         if ((irq_drq & 1)==0)
1100             break;
1101         irq_drq >>= 1;
1102     }
1103     ha->drq = gdth_drq_tab[i];
1104
1105     irq_drq = gdth_readb(&dp2_ptr->io.rq) >> 3;
1106     for (i=1; i<5; ++i) {
1107         if ((irq_drq & 1)==0)
1108             break;
1109         irq_drq >>= 1;
1110     }
1111     ha->irq = gdth_irq_tab[i];
1112
1113     /* deinitialize services */
1114     gdth_writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
1115     gdth_writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
1116     gdth_writeb(0, &dp2_ptr->io.event);
1117     retries = INIT_RETRIES;
1118     gdth_delay(20);
1119     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1120         if (--retries == 0) {
1121             printk("GDT-ISA: Initialization error (DEINIT failed)\n");
1122             iounmap(ha->brd);
1123             return 0;
1124         }
1125         gdth_delay(1);
1126     }
1127     prot_ver = (unchar)gdth_readl(&dp2_ptr->u.ic.S_Info[0]);
1128     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1129     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1130     if (prot_ver != PROTOCOL_VERSION) {
1131         printk("GDT-ISA: Illegal protocol version\n");
1132         iounmap(ha->brd);
1133         return 0;
1134     }
1135
1136     ha->oem_id = OEM_ID_ICP;
1137     ha->type = GDT_ISA;
1138     ha->ic_all_size = sizeof(dp2_ptr->u);
1139     ha->stype= GDT2_ID;
1140     ha->brd_phys = bios_adr >> 4;
1141
1142     /* special request to controller BIOS */
1143     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
1144     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
1145     gdth_writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
1146     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
1147     gdth_writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
1148     gdth_writeb(0, &dp2_ptr->io.event);
1149     retries = INIT_RETRIES;
1150     gdth_delay(20);
1151     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1152         if (--retries == 0) {
1153             printk("GDT-ISA: Initialization error\n");
1154             iounmap(ha->brd);
1155             return 0;
1156         }
1157         gdth_delay(1);
1158     }
1159     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1160     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1161
1162     ha->dma64_support = 0;
1163     return 1;
1164 }
1165
1166
1167 static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
1168 {
1169     register gdt6_dpram_str __iomem *dp6_ptr;
1170     register gdt6c_dpram_str __iomem *dp6c_ptr;
1171     register gdt6m_dpram_str __iomem *dp6m_ptr;
1172     ulong32 retries;
1173     unchar prot_ver;
1174     ushort command;
1175     int i, found = FALSE;
1176
1177     TRACE(("gdth_init_pci()\n"));
1178
1179     if (pcistr->vendor_id == PCI_VENDOR_ID_INTEL)
1180         ha->oem_id = OEM_ID_INTEL;
1181     else
1182         ha->oem_id = OEM_ID_ICP;
1183     ha->brd_phys = (pcistr->bus << 8) | (pcistr->device_fn & 0xf8);
1184     ha->stype = (ulong32)pcistr->device_id;
1185     ha->subdevice_id = pcistr->subdevice_id;
1186     ha->irq = pcistr->irq;
1187     ha->pdev = pcistr->pdev;
1188
1189     if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
1190         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1191         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
1192         if (ha->brd == NULL) {
1193             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1194             return 0;
1195         }
1196         /* check and reset interface area */
1197         dp6_ptr = ha->brd;
1198         gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1199         if (gdth_readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1200             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1201                    pcistr->dpmem);
1202             found = FALSE;
1203             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1204                 iounmap(ha->brd);
1205                 ha->brd = ioremap(i, sizeof(ushort));
1206                 if (ha->brd == NULL) {
1207                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1208                     return 0;
1209                 }
1210                 if (gdth_readw(ha->brd) != 0xffff) {
1211                     TRACE2(("init_pci_old() address 0x%x busy\n", i));
1212                     continue;
1213                 }
1214                 iounmap(ha->brd);
1215                 pci_write_config_dword(pcistr->pdev,
1216                                        PCI_BASE_ADDRESS_0, i);
1217                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
1218                 if (ha->brd == NULL) {
1219                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1220                     return 0;
1221                 }
1222                 dp6_ptr = ha->brd;
1223                 gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1224                 if (gdth_readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1225                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1226                     found = TRUE;
1227                     break;
1228                 }
1229             }
1230             if (!found) {
1231                 printk("GDT-PCI: No free address found!\n");
1232                 iounmap(ha->brd);
1233                 return 0;
1234             }
1235         }
1236         memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
1237         if (gdth_readl(&dp6_ptr->u) != 0) {
1238             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1239             iounmap(ha->brd);
1240             return 0;
1241         }
1242
1243         /* disable board interrupts, deinit services */
1244         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1245         gdth_writeb(0x00, &dp6_ptr->io.irqen);
1246         gdth_writeb(0x00, &dp6_ptr->u.ic.S_Status);
1247         gdth_writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
1248
1249         gdth_writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
1250         gdth_writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
1251         gdth_writeb(0, &dp6_ptr->io.event);
1252         retries = INIT_RETRIES;
1253         gdth_delay(20);
1254         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1255             if (--retries == 0) {
1256                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1257                 iounmap(ha->brd);
1258                 return 0;
1259             }
1260             gdth_delay(1);
1261         }
1262         prot_ver = (unchar)gdth_readl(&dp6_ptr->u.ic.S_Info[0]);
1263         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1264         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
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_PCI;
1272         ha->ic_all_size = sizeof(dp6_ptr->u);
1273
1274         /* special command to controller BIOS */
1275         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1276         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1277         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1278         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1279         gdth_writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1280         gdth_writeb(0, &dp6_ptr->io.event);
1281         retries = INIT_RETRIES;
1282         gdth_delay(20);
1283         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1284             if (--retries == 0) {
1285                 printk("GDT-PCI: Initialization error\n");
1286                 iounmap(ha->brd);
1287                 return 0;
1288             }
1289             gdth_delay(1);
1290         }
1291         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1292         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1293
1294         ha->dma64_support = 0;
1295
1296     } else if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1297         ha->plx = (gdt6c_plx_regs *)pcistr->io;
1298         TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1299             pcistr->dpmem,ha->irq));
1300         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1301         if (ha->brd == NULL) {
1302             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1303             iounmap(ha->brd);
1304             return 0;
1305         }
1306         /* check and reset interface area */
1307         dp6c_ptr = ha->brd;
1308         gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1309         if (gdth_readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1310             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1311                    pcistr->dpmem);
1312             found = FALSE;
1313             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1314                 iounmap(ha->brd);
1315                 ha->brd = ioremap(i, sizeof(ushort));
1316                 if (ha->brd == NULL) {
1317                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1318                     return 0;
1319                 }
1320                 if (gdth_readw(ha->brd) != 0xffff) {
1321                     TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1322                     continue;
1323                 }
1324                 iounmap(ha->brd);
1325                 pci_write_config_dword(pcistr->pdev,
1326                                        PCI_BASE_ADDRESS_2, i);
1327                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1328                 if (ha->brd == NULL) {
1329                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1330                     return 0;
1331                 }
1332                 dp6c_ptr = ha->brd;
1333                 gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1334                 if (gdth_readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1335                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1336                     found = TRUE;
1337                     break;
1338                 }
1339             }
1340             if (!found) {
1341                 printk("GDT-PCI: No free address found!\n");
1342                 iounmap(ha->brd);
1343                 return 0;
1344             }
1345         }
1346         memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
1347         if (gdth_readl(&dp6c_ptr->u) != 0) {
1348             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1349             iounmap(ha->brd);
1350             return 0;
1351         }
1352
1353         /* disable board interrupts, deinit services */
1354         outb(0x00,PTR2USHORT(&ha->plx->control1));
1355         outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1356
1357         gdth_writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1358         gdth_writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1359
1360         gdth_writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1361         gdth_writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1362
1363         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1364
1365         retries = INIT_RETRIES;
1366         gdth_delay(20);
1367         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1368             if (--retries == 0) {
1369                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1370                 iounmap(ha->brd);
1371                 return 0;
1372             }
1373             gdth_delay(1);
1374         }
1375         prot_ver = (unchar)gdth_readl(&dp6c_ptr->u.ic.S_Info[0]);
1376         gdth_writeb(0, &dp6c_ptr->u.ic.Status);
1377         if (prot_ver != PROTOCOL_VERSION) {
1378             printk("GDT-PCI: Illegal protocol version\n");
1379             iounmap(ha->brd);
1380             return 0;
1381         }
1382
1383         ha->type = GDT_PCINEW;
1384         ha->ic_all_size = sizeof(dp6c_ptr->u);
1385
1386         /* special command to controller BIOS */
1387         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1388         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1389         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1390         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1391         gdth_writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1392
1393         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1394
1395         retries = INIT_RETRIES;
1396         gdth_delay(20);
1397         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1398             if (--retries == 0) {
1399                 printk("GDT-PCI: Initialization error\n");
1400                 iounmap(ha->brd);
1401                 return 0;
1402             }
1403             gdth_delay(1);
1404         }
1405         gdth_writeb(0, &dp6c_ptr->u.ic.S_Status);
1406
1407         ha->dma64_support = 0;
1408
1409     } else {                                            /* MPR */
1410         TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1411         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1412         if (ha->brd == NULL) {
1413             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1414             return 0;
1415         }
1416
1417         /* manipulate config. space to enable DPMEM, start RP controller */
1418         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1419         command |= 6;
1420         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1421         if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1422             pci_resource_start(pcistr->pdev, 8) = 0UL;
1423         i = 0xFEFF0001UL;
1424         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1425         gdth_delay(1);
1426         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1427                                pci_resource_start(pcistr->pdev, 8));
1428
1429         dp6m_ptr = ha->brd;
1430
1431         /* Ensure that it is safe to access the non HW portions of DPMEM.
1432          * Aditional check needed for Xscale based RAID controllers */
1433         while( ((int)gdth_readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1434             gdth_delay(1);
1435
1436         /* check and reset interface area */
1437         gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1438         if (gdth_readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1439             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1440                    pcistr->dpmem);
1441             found = FALSE;
1442             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1443                 iounmap(ha->brd);
1444                 ha->brd = ioremap(i, sizeof(ushort));
1445                 if (ha->brd == NULL) {
1446                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1447                     return 0;
1448                 }
1449                 if (gdth_readw(ha->brd) != 0xffff) {
1450                     TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1451                     continue;
1452                 }
1453                 iounmap(ha->brd);
1454                 pci_write_config_dword(pcistr->pdev,
1455                                        PCI_BASE_ADDRESS_0, i);
1456                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1457                 if (ha->brd == NULL) {
1458                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1459                     return 0;
1460                 }
1461                 dp6m_ptr = ha->brd;
1462                 gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1463                 if (gdth_readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1464                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1465                     found = TRUE;
1466                     break;
1467                 }
1468             }
1469             if (!found) {
1470                 printk("GDT-PCI: No free address found!\n");
1471                 iounmap(ha->brd);
1472                 return 0;
1473             }
1474         }
1475         memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1476
1477         /* disable board interrupts, deinit services */
1478         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1479                     &dp6m_ptr->i960r.edoor_en_reg);
1480         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1481         gdth_writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1482         gdth_writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1483
1484         gdth_writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1485         gdth_writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1486         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1487         retries = INIT_RETRIES;
1488         gdth_delay(20);
1489         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1490             if (--retries == 0) {
1491                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1492                 iounmap(ha->brd);
1493                 return 0;
1494             }
1495             gdth_delay(1);
1496         }
1497         prot_ver = (unchar)gdth_readl(&dp6m_ptr->u.ic.S_Info[0]);
1498         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1499         if (prot_ver != PROTOCOL_VERSION) {
1500             printk("GDT-PCI: Illegal protocol version\n");
1501             iounmap(ha->brd);
1502             return 0;
1503         }
1504
1505         ha->type = GDT_PCIMPR;
1506         ha->ic_all_size = sizeof(dp6m_ptr->u);
1507
1508         /* special command to controller BIOS */
1509         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1510         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1511         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1512         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1513         gdth_writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1514         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1515         retries = INIT_RETRIES;
1516         gdth_delay(20);
1517         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1518             if (--retries == 0) {
1519                 printk("GDT-PCI: Initialization error\n");
1520                 iounmap(ha->brd);
1521                 return 0;
1522             }
1523             gdth_delay(1);
1524         }
1525         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1526
1527         /* read FW version to detect 64-bit DMA support */
1528         gdth_writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1529         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1530         retries = INIT_RETRIES;
1531         gdth_delay(20);
1532         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1533             if (--retries == 0) {
1534                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1535                 iounmap(ha->brd);
1536                 return 0;
1537             }
1538             gdth_delay(1);
1539         }
1540         prot_ver = (unchar)(gdth_readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1541         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1542         if (prot_ver < 0x2b)      /* FW < x.43: no 64-bit DMA support */
1543             ha->dma64_support = 0;
1544         else
1545             ha->dma64_support = 1;
1546     }
1547
1548     return 1;
1549 }
1550
1551
1552 /* controller protocol functions */
1553
1554 static void __init gdth_enable_int(int hanum)
1555 {
1556     gdth_ha_str *ha;
1557     ulong flags;
1558     gdt2_dpram_str __iomem *dp2_ptr;
1559     gdt6_dpram_str __iomem *dp6_ptr;
1560     gdt6m_dpram_str __iomem *dp6m_ptr;
1561
1562     TRACE(("gdth_enable_int() hanum %d\n",hanum));
1563     ha = HADATA(gdth_ctr_tab[hanum]);
1564     spin_lock_irqsave(&ha->smp_lock, flags);
1565
1566     if (ha->type == GDT_EISA) {
1567         outb(0xff, ha->bmic + EDOORREG);
1568         outb(0xff, ha->bmic + EDENABREG);
1569         outb(0x01, ha->bmic + EINTENABREG);
1570     } else if (ha->type == GDT_ISA) {
1571         dp2_ptr = ha->brd;
1572         gdth_writeb(1, &dp2_ptr->io.irqdel);
1573         gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1574         gdth_writeb(1, &dp2_ptr->io.irqen);
1575     } else if (ha->type == GDT_PCI) {
1576         dp6_ptr = ha->brd;
1577         gdth_writeb(1, &dp6_ptr->io.irqdel);
1578         gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1579         gdth_writeb(1, &dp6_ptr->io.irqen);
1580     } else if (ha->type == GDT_PCINEW) {
1581         outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1582         outb(0x03, PTR2USHORT(&ha->plx->control1));
1583     } else if (ha->type == GDT_PCIMPR) {
1584         dp6m_ptr = ha->brd;
1585         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1586         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1587                     &dp6m_ptr->i960r.edoor_en_reg);
1588     }
1589     spin_unlock_irqrestore(&ha->smp_lock, flags);
1590 }
1591
1592
1593 static int gdth_get_status(unchar *pIStatus,int irq)
1594 {
1595     register gdth_ha_str *ha;
1596     int i;
1597
1598     TRACE(("gdth_get_status() irq %d ctr_count %d\n",
1599            irq,gdth_ctr_count));
1600
1601     *pIStatus = 0;
1602     for (i=0; i<gdth_ctr_count; ++i) {
1603         ha = HADATA(gdth_ctr_tab[i]);
1604         if (ha->irq != (unchar)irq)             /* check IRQ */
1605             continue;
1606         if (ha->type == GDT_EISA)
1607             *pIStatus = inb((ushort)ha->bmic + EDOORREG);
1608         else if (ha->type == GDT_ISA)
1609             *pIStatus =
1610                 gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1611         else if (ha->type == GDT_PCI)
1612             *pIStatus =
1613                 gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1614         else if (ha->type == GDT_PCINEW)
1615             *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1616         else if (ha->type == GDT_PCIMPR)
1617             *pIStatus =
1618                 gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1619
1620         if (*pIStatus)
1621             return i;                           /* board found */
1622     }
1623     return -1;
1624 }
1625
1626
1627 static int gdth_test_busy(int hanum)
1628 {
1629     register gdth_ha_str *ha;
1630     register int gdtsema0 = 0;
1631
1632     TRACE(("gdth_test_busy() hanum %d\n",hanum));
1633
1634     ha = HADATA(gdth_ctr_tab[hanum]);
1635     if (ha->type == GDT_EISA)
1636         gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1637     else if (ha->type == GDT_ISA)
1638         gdtsema0 = (int)gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1639     else if (ha->type == GDT_PCI)
1640         gdtsema0 = (int)gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1641     else if (ha->type == GDT_PCINEW)
1642         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1643     else if (ha->type == GDT_PCIMPR)
1644         gdtsema0 =
1645             (int)gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1646
1647     return (gdtsema0 & 1);
1648 }
1649
1650
1651 static int gdth_get_cmd_index(int hanum)
1652 {
1653     register gdth_ha_str *ha;
1654     int i;
1655
1656     TRACE(("gdth_get_cmd_index() hanum %d\n",hanum));
1657
1658     ha = HADATA(gdth_ctr_tab[hanum]);
1659     for (i=0; i<GDTH_MAXCMDS; ++i) {
1660         if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1661             ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1662             ha->cmd_tab[i].service = ha->pccb->Service;
1663             ha->pccb->CommandIndex = (ulong32)i+2;
1664             return (i+2);
1665         }
1666     }
1667     return 0;
1668 }
1669
1670
1671 static void gdth_set_sema0(int hanum)
1672 {
1673     register gdth_ha_str *ha;
1674
1675     TRACE(("gdth_set_sema0() hanum %d\n",hanum));
1676
1677     ha = HADATA(gdth_ctr_tab[hanum]);
1678     if (ha->type == GDT_EISA) {
1679         outb(1, ha->bmic + SEMA0REG);
1680     } else if (ha->type == GDT_ISA) {
1681         gdth_writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1682     } else if (ha->type == GDT_PCI) {
1683         gdth_writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1684     } else if (ha->type == GDT_PCINEW) {
1685         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1686     } else if (ha->type == GDT_PCIMPR) {
1687         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1688     }
1689 }
1690
1691
1692 static void gdth_copy_command(int hanum)
1693 {
1694     register gdth_ha_str *ha;
1695     register gdth_cmd_str *cmd_ptr;
1696     register gdt6m_dpram_str __iomem *dp6m_ptr;
1697     register gdt6c_dpram_str __iomem *dp6c_ptr;
1698     gdt6_dpram_str __iomem *dp6_ptr;
1699     gdt2_dpram_str __iomem *dp2_ptr;
1700     ushort cp_count,dp_offset,cmd_no;
1701
1702     TRACE(("gdth_copy_command() hanum %d\n",hanum));
1703
1704     ha = HADATA(gdth_ctr_tab[hanum]);
1705     cp_count = ha->cmd_len;
1706     dp_offset= ha->cmd_offs_dpmem;
1707     cmd_no   = ha->cmd_cnt;
1708     cmd_ptr  = ha->pccb;
1709
1710     ++ha->cmd_cnt;
1711     if (ha->type == GDT_EISA)
1712         return;                                 /* no DPMEM, no copy */
1713
1714     /* set cpcount dword aligned */
1715     if (cp_count & 3)
1716         cp_count += (4 - (cp_count & 3));
1717
1718     ha->cmd_offs_dpmem += cp_count;
1719
1720     /* set offset and service, copy command to DPMEM */
1721     if (ha->type == GDT_ISA) {
1722         dp2_ptr = ha->brd;
1723         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1724                     &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1725         gdth_writew((ushort)cmd_ptr->Service,
1726                     &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1727         memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1728     } else if (ha->type == GDT_PCI) {
1729         dp6_ptr = ha->brd;
1730         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1731                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1732         gdth_writew((ushort)cmd_ptr->Service,
1733                     &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1734         memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1735     } else if (ha->type == GDT_PCINEW) {
1736         dp6c_ptr = ha->brd;
1737         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1738                     &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1739         gdth_writew((ushort)cmd_ptr->Service,
1740                     &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1741         memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1742     } else if (ha->type == GDT_PCIMPR) {
1743         dp6m_ptr = ha->brd;
1744         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1745                     &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1746         gdth_writew((ushort)cmd_ptr->Service,
1747                     &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1748         memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1749     }
1750 }
1751
1752
1753 static void gdth_release_event(int hanum)
1754 {
1755     register gdth_ha_str *ha;
1756
1757     TRACE(("gdth_release_event() hanum %d\n",hanum));
1758     ha = HADATA(gdth_ctr_tab[hanum]);
1759
1760 #ifdef GDTH_STATISTICS
1761     {
1762         ulong32 i,j;
1763         for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1764             if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1765                 ++i;
1766         }
1767         if (max_index < i) {
1768             max_index = i;
1769             TRACE3(("GDT: max_index = %d\n",(ushort)i));
1770         }
1771     }
1772 #endif
1773
1774     if (ha->pccb->OpCode == GDT_INIT)
1775         ha->pccb->Service |= 0x80;
1776
1777     if (ha->type == GDT_EISA) {
1778         if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
1779             outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1780         outb(ha->pccb->Service, ha->bmic + LDOORREG);
1781     } else if (ha->type == GDT_ISA) {
1782         gdth_writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1783     } else if (ha->type == GDT_PCI) {
1784         gdth_writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1785     } else if (ha->type == GDT_PCINEW) {
1786         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1787     } else if (ha->type == GDT_PCIMPR) {
1788         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1789     }
1790 }
1791
1792
1793 static int gdth_wait(int hanum,int index,ulong32 time)
1794 {
1795     gdth_ha_str *ha;
1796     int answer_found = FALSE;
1797
1798     TRACE(("gdth_wait() hanum %d index %d time %d\n",hanum,index,time));
1799
1800     ha = HADATA(gdth_ctr_tab[hanum]);
1801     if (index == 0)
1802         return 1;                               /* no wait required */
1803
1804     gdth_from_wait = TRUE;
1805     do {
1806         gdth_interrupt((int)ha->irq,ha);
1807         if (wait_hanum==hanum && wait_index==index) {
1808             answer_found = TRUE;
1809             break;
1810         }
1811         gdth_delay(1);
1812     } while (--time);
1813     gdth_from_wait = FALSE;
1814
1815     while (gdth_test_busy(hanum))
1816         gdth_delay(0);
1817
1818     return (answer_found);
1819 }
1820
1821
1822 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
1823                              ulong64 p2,ulong64 p3)
1824 {
1825     register gdth_ha_str *ha;
1826     register gdth_cmd_str *cmd_ptr;
1827     int retries,index;
1828
1829     TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1830
1831     ha = HADATA(gdth_ctr_tab[hanum]);
1832     cmd_ptr = ha->pccb;
1833     memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1834
1835     /* make command  */
1836     for (retries = INIT_RETRIES;;) {
1837         cmd_ptr->Service          = service;
1838         cmd_ptr->RequestBuffer    = INTERNAL_CMND;
1839         if (!(index=gdth_get_cmd_index(hanum))) {
1840             TRACE(("GDT: No free command index found\n"));
1841             return 0;
1842         }
1843         gdth_set_sema0(hanum);
1844         cmd_ptr->OpCode           = opcode;
1845         cmd_ptr->BoardNode        = LOCALBOARD;
1846         if (service == CACHESERVICE) {
1847             if (opcode == GDT_IOCTL) {
1848                 cmd_ptr->u.ioctl.subfunc = p1;
1849                 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1850                 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1851                 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1852             } else {
1853                 if (ha->cache_feat & GDT_64BIT) {
1854                     cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1855                     cmd_ptr->u.cache64.BlockNo  = p2;
1856                 } else {
1857                     cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1858                     cmd_ptr->u.cache.BlockNo  = (ulong32)p2;
1859                 }
1860             }
1861         } else if (service == SCSIRAWSERVICE) {
1862             if (ha->raw_feat & GDT_64BIT) {
1863                 cmd_ptr->u.raw64.direction  = p1;
1864                 cmd_ptr->u.raw64.bus        = (unchar)p2;
1865                 cmd_ptr->u.raw64.target     = (unchar)p3;
1866                 cmd_ptr->u.raw64.lun        = (unchar)(p3 >> 8);
1867             } else {
1868                 cmd_ptr->u.raw.direction  = p1;
1869                 cmd_ptr->u.raw.bus        = (unchar)p2;
1870                 cmd_ptr->u.raw.target     = (unchar)p3;
1871                 cmd_ptr->u.raw.lun        = (unchar)(p3 >> 8);
1872             }
1873         } else if (service == SCREENSERVICE) {
1874             if (opcode == GDT_REALTIME) {
1875                 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1876                 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1877                 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1878             }
1879         }
1880         ha->cmd_len          = sizeof(gdth_cmd_str);
1881         ha->cmd_offs_dpmem   = 0;
1882         ha->cmd_cnt          = 0;
1883         gdth_copy_command(hanum);
1884         gdth_release_event(hanum);
1885         gdth_delay(20);
1886         if (!gdth_wait(hanum,index,INIT_TIMEOUT)) {
1887             printk("GDT: Initialization error (timeout service %d)\n",service);
1888             return 0;
1889         }
1890         if (ha->status != S_BSY || --retries == 0)
1891             break;
1892         gdth_delay(1);
1893     }
1894
1895     return (ha->status != S_OK ? 0:1);
1896 }
1897
1898
1899 /* search for devices */
1900
1901 static int __init gdth_search_drives(int hanum)
1902 {
1903     register gdth_ha_str *ha;
1904     ushort cdev_cnt, i;
1905     int ok;
1906     ulong32 bus_no, drv_cnt, drv_no, j;
1907     gdth_getch_str *chn;
1908     gdth_drlist_str *drl;
1909     gdth_iochan_str *ioc;
1910     gdth_raw_iochan_str *iocr;
1911     gdth_arcdl_str *alst;
1912     gdth_alist_str *alst2;
1913     gdth_oem_str_ioctl *oemstr;
1914 #ifdef INT_COAL
1915     gdth_perf_modes *pmod;
1916 #endif
1917
1918 #ifdef GDTH_RTC
1919     unchar rtc[12];
1920     ulong flags;
1921 #endif
1922
1923     TRACE(("gdth_search_drives() hanum %d\n",hanum));
1924     ha = HADATA(gdth_ctr_tab[hanum]);
1925     ok = 0;
1926
1927     /* initialize controller services, at first: screen service */
1928     ha->screen_feat = 0;
1929     if (!force_dma32) {
1930         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_X_INIT_SCR,0,0,0);
1931         if (ok)
1932             ha->screen_feat = GDT_64BIT;
1933     }
1934     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1935         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_INIT,0,0,0);
1936     if (!ok) {
1937         printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1938                hanum, ha->status);
1939         return 0;
1940     }
1941     TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1942
1943 #ifdef GDTH_RTC
1944     /* read realtime clock info, send to controller */
1945     /* 1. wait for the falling edge of update flag */
1946     spin_lock_irqsave(&rtc_lock, flags);
1947     for (j = 0; j < 1000000; ++j)
1948         if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1949             break;
1950     for (j = 0; j < 1000000; ++j)
1951         if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1952             break;
1953     /* 2. read info */
1954     do {
1955         for (j = 0; j < 12; ++j)
1956             rtc[j] = CMOS_READ(j);
1957     } while (rtc[0] != CMOS_READ(0));
1958     spin_lock_irqrestore(&rtc_lock, flags);
1959     TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1960             *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1961     /* 3. send to controller firmware */
1962     gdth_internal_cmd(hanum,SCREENSERVICE,GDT_REALTIME, *(ulong32 *)&rtc[0],
1963                       *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1964 #endif
1965
1966     /* unfreeze all IOs */
1967     gdth_internal_cmd(hanum,CACHESERVICE,GDT_UNFREEZE_IO,0,0,0);
1968
1969     /* initialize cache service */
1970     ha->cache_feat = 0;
1971     if (!force_dma32) {
1972         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INIT_HOST,LINUX_OS,0,0);
1973         if (ok)
1974             ha->cache_feat = GDT_64BIT;
1975     }
1976     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1977         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_INIT,LINUX_OS,0,0);
1978     if (!ok) {
1979         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1980                hanum, ha->status);
1981         return 0;
1982     }
1983     TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1984     cdev_cnt = (ushort)ha->info;
1985     ha->fw_vers = ha->service;
1986
1987 #ifdef INT_COAL
1988     if (ha->type == GDT_PCIMPR) {
1989         /* set perf. modes */
1990         pmod = (gdth_perf_modes *)ha->pscratch;
1991         pmod->version          = 1;
1992         pmod->st_mode          = 1;    /* enable one status buffer */
1993         *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1994         pmod->st_buff_indx1    = COALINDEX;
1995         pmod->st_buff_addr2    = 0;
1996         pmod->st_buff_u_addr2  = 0;
1997         pmod->st_buff_indx2    = 0;
1998         pmod->st_buff_size     = sizeof(gdth_coal_status) * MAXOFFSETS;
1999         pmod->cmd_mode         = 0;    // disable all cmd buffers
2000         pmod->cmd_buff_addr1   = 0;
2001         pmod->cmd_buff_u_addr1 = 0;
2002         pmod->cmd_buff_indx1   = 0;
2003         pmod->cmd_buff_addr2   = 0;
2004         pmod->cmd_buff_u_addr2 = 0;
2005         pmod->cmd_buff_indx2   = 0;
2006         pmod->cmd_buff_size    = 0;
2007         pmod->reserved1        = 0;
2008         pmod->reserved2        = 0;
2009         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,SET_PERF_MODES,
2010                               INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
2011             printk("GDT-HA %d: Interrupt coalescing activated\n", hanum);
2012         }
2013     }
2014 #endif
2015
2016     /* detect number of buses - try new IOCTL */
2017     iocr = (gdth_raw_iochan_str *)ha->pscratch;
2018     iocr->hdr.version        = 0xffffffff;
2019     iocr->hdr.list_entries   = MAXBUS;
2020     iocr->hdr.first_chan     = 0;
2021     iocr->hdr.last_chan      = MAXBUS-1;
2022     iocr->hdr.list_offset    = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
2023     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_RAW_DESC,
2024                           INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
2025         TRACE2(("IOCHAN_RAW_DESC supported!\n"));
2026         ha->bus_cnt = iocr->hdr.chan_count;
2027         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2028             if (iocr->list[bus_no].proc_id < MAXID)
2029                 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
2030             else
2031                 ha->bus_id[bus_no] = 0xff;
2032         }
2033     } else {
2034         /* old method */
2035         chn = (gdth_getch_str *)ha->pscratch;
2036         for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
2037             chn->channel_no = bus_no;
2038             if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2039                                    SCSI_CHAN_CNT | L_CTRL_PATTERN,
2040                                    IO_CHANNEL | INVALID_CHANNEL,
2041                                    sizeof(gdth_getch_str))) {
2042                 if (bus_no == 0) {
2043                     printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
2044                            hanum, ha->status);
2045                     return 0;
2046                 }
2047                 break;
2048             }
2049             if (chn->siop_id < MAXID)
2050                 ha->bus_id[bus_no] = chn->siop_id;
2051             else
2052                 ha->bus_id[bus_no] = 0xff;
2053         }
2054         ha->bus_cnt = (unchar)bus_no;
2055     }
2056     TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
2057
2058     /* read cache configuration */
2059     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_INFO,
2060                            INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
2061         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
2062                hanum, ha->status);
2063         return 0;
2064     }
2065     ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
2066     TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
2067             ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
2068             ha->cpar.write_back,ha->cpar.block_size));
2069
2070     /* read board info and features */
2071     ha->more_proc = FALSE;
2072     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_INFO,
2073                           INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
2074         memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
2075                sizeof(gdth_binfo_str));
2076         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_FEATURES,
2077                               INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
2078             TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
2079             ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
2080             ha->more_proc = TRUE;
2081         }
2082     } else {
2083         TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
2084         strcpy(ha->binfo.type_string, gdth_ctr_name(hanum));
2085     }
2086     TRACE2(("Controller name: %s\n",ha->binfo.type_string));
2087
2088     /* read more informations */
2089     if (ha->more_proc) {
2090         /* physical drives, channel addresses */
2091         ioc = (gdth_iochan_str *)ha->pscratch;
2092         ioc->hdr.version        = 0xffffffff;
2093         ioc->hdr.list_entries   = MAXBUS;
2094         ioc->hdr.first_chan     = 0;
2095         ioc->hdr.last_chan      = MAXBUS-1;
2096         ioc->hdr.list_offset    = GDTOFFSOF(gdth_iochan_str, list[0]);
2097         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_DESC,
2098                               INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
2099             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2100                 ha->raw[bus_no].address = ioc->list[bus_no].address;
2101                 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
2102             }
2103         } else {
2104             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2105                 ha->raw[bus_no].address = IO_CHANNEL;
2106                 ha->raw[bus_no].local_no = bus_no;
2107             }
2108         }
2109         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2110             chn = (gdth_getch_str *)ha->pscratch;
2111             chn->channel_no = ha->raw[bus_no].local_no;
2112             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2113                                   SCSI_CHAN_CNT | L_CTRL_PATTERN,
2114                                   ha->raw[bus_no].address | INVALID_CHANNEL,
2115                                   sizeof(gdth_getch_str))) {
2116                 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
2117                 TRACE2(("Channel %d: %d phys. drives\n",
2118                         bus_no,chn->drive_cnt));
2119             }
2120             if (ha->raw[bus_no].pdev_cnt > 0) {
2121                 drl = (gdth_drlist_str *)ha->pscratch;
2122                 drl->sc_no = ha->raw[bus_no].local_no;
2123                 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
2124                 if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2125                                       SCSI_DR_LIST | L_CTRL_PATTERN,
2126                                       ha->raw[bus_no].address | INVALID_CHANNEL,
2127                                       sizeof(gdth_drlist_str))) {
2128                     for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
2129                         ha->raw[bus_no].id_list[j] = drl->sc_list[j];
2130                 } else {
2131                     ha->raw[bus_no].pdev_cnt = 0;
2132                 }
2133             }
2134         }
2135
2136         /* logical drives */
2137         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_CNT,
2138                               INVALID_CHANNEL,sizeof(ulong32))) {
2139             drv_cnt = *(ulong32 *)ha->pscratch;
2140             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_LIST,
2141                                   INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
2142                 for (j = 0; j < drv_cnt; ++j) {
2143                     drv_no = ((ulong32 *)ha->pscratch)[j];
2144                     if (drv_no < MAX_LDRIVES) {
2145                         ha->hdr[drv_no].is_logdrv = TRUE;
2146                         TRACE2(("Drive %d is log. drive\n",drv_no));
2147                     }
2148                 }
2149             }
2150             alst = (gdth_arcdl_str *)ha->pscratch;
2151             alst->entries_avail = MAX_LDRIVES;
2152             alst->first_entry = 0;
2153             alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
2154             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2155                                   ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
2156                                   INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
2157                                   (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
2158                 for (j = 0; j < alst->entries_init; ++j) {
2159                     ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
2160                     ha->hdr[j].is_master = alst->list[j].is_master;
2161                     ha->hdr[j].is_parity = alst->list[j].is_parity;
2162                     ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
2163                     ha->hdr[j].master_no = alst->list[j].cd_handle;
2164                 }
2165             } else if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2166                                          ARRAY_DRV_LIST | LA_CTRL_PATTERN,
2167                                          0, 35 * sizeof(gdth_alist_str))) {
2168                 for (j = 0; j < 35; ++j) {
2169                     alst2 = &((gdth_alist_str *)ha->pscratch)[j];
2170                     ha->hdr[j].is_arraydrv = alst2->is_arrayd;
2171                     ha->hdr[j].is_master = alst2->is_master;
2172                     ha->hdr[j].is_parity = alst2->is_parity;
2173                     ha->hdr[j].is_hotfix = alst2->is_hotfix;
2174                     ha->hdr[j].master_no = alst2->cd_handle;
2175                 }
2176             }
2177         }
2178     }
2179
2180     /* initialize raw service */
2181     ha->raw_feat = 0;
2182     if (!force_dma32) {
2183         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_X_INIT_RAW,0,0,0);
2184         if (ok)
2185             ha->raw_feat = GDT_64BIT;
2186     }
2187     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
2188         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_INIT,0,0,0);
2189     if (!ok) {
2190         printk("GDT-HA %d: Initialization error raw service (code %d)\n",
2191                hanum, ha->status);
2192         return 0;
2193     }
2194     TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
2195
2196     /* set/get features raw service (scatter/gather) */
2197     if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_SET_FEAT,SCATTER_GATHER,
2198                           0,0)) {
2199         TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
2200         if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_GET_FEAT,0,0,0)) {
2201             TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
2202                     ha->info));
2203             ha->raw_feat |= (ushort)ha->info;
2204         }
2205     }
2206
2207     /* set/get features cache service (equal to raw service) */
2208     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_SET_FEAT,0,
2209                           SCATTER_GATHER,0)) {
2210         TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
2211         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_GET_FEAT,0,0,0)) {
2212             TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
2213                     ha->info));
2214             ha->cache_feat |= (ushort)ha->info;
2215         }
2216     }
2217
2218     /* reserve drives for raw service */
2219     if (reserve_mode != 0) {
2220         gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE_ALL,
2221                           reserve_mode == 1 ? 1 : 3, 0, 0);
2222         TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
2223                 ha->status));
2224     }
2225     for (i = 0; i < MAX_RES_ARGS; i += 4) {
2226         if (reserve_list[i] == hanum && reserve_list[i+1] < ha->bus_cnt &&
2227             reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
2228             TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
2229                     reserve_list[i], reserve_list[i+1],
2230                     reserve_list[i+2], reserve_list[i+3]));
2231             if (!gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE,0,
2232                                    reserve_list[i+1], reserve_list[i+2] |
2233                                    (reserve_list[i+3] << 8))) {
2234                 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
2235                        hanum, ha->status);
2236              }
2237         }
2238     }
2239
2240     /* Determine OEM string using IOCTL */
2241     oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
2242     oemstr->params.ctl_version = 0x01;
2243     oemstr->params.buffer_size = sizeof(oemstr->text);
2244     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2245                           CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
2246                           sizeof(gdth_oem_str_ioctl))) {
2247         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
2248         printk("GDT-HA %d: Vendor: %s Name: %s\n",
2249                hanum,oemstr->text.oem_company_name,ha->binfo.type_string);
2250         /* Save the Host Drive inquiry data */
2251 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2252         strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
2253                 sizeof(ha->oem_name));
2254 #else
2255         strncpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,7);
2256         ha->oem_name[7] = '\0';
2257 #endif
2258     } else {
2259         /* Old method, based on PCI ID */
2260         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
2261         printk("GDT-HA %d: Name: %s\n",
2262                hanum,ha->binfo.type_string);
2263 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2264         if (ha->oem_id == OEM_ID_INTEL)
2265             strlcpy(ha->oem_name,"Intel  ", sizeof(ha->oem_name));
2266         else
2267             strlcpy(ha->oem_name,"ICP    ", sizeof(ha->oem_name));
2268 #else
2269         if (ha->oem_id == OEM_ID_INTEL)
2270             strcpy(ha->oem_name,"Intel  ");
2271         else
2272             strcpy(ha->oem_name,"ICP    ");
2273 #endif
2274     }
2275
2276     /* scanning for host drives */
2277     for (i = 0; i < cdev_cnt; ++i)
2278         gdth_analyse_hdrive(hanum,i);
2279
2280     TRACE(("gdth_search_drives() OK\n"));
2281     return 1;
2282 }
2283
2284 static int gdth_analyse_hdrive(int hanum,ushort hdrive)
2285 {
2286     register gdth_ha_str *ha;
2287     ulong32 drv_cyls;
2288     int drv_hds, drv_secs;
2289
2290     TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n",hanum,hdrive));
2291     if (hdrive >= MAX_HDRIVES)
2292         return 0;
2293     ha = HADATA(gdth_ctr_tab[hanum]);
2294
2295     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_INFO,hdrive,0,0))
2296         return 0;
2297     ha->hdr[hdrive].present = TRUE;
2298     ha->hdr[hdrive].size = ha->info;
2299
2300     /* evaluate mapping (sectors per head, heads per cylinder) */
2301     ha->hdr[hdrive].size &= ~SECS32;
2302     if (ha->info2 == 0) {
2303         gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2304     } else {
2305         drv_hds = ha->info2 & 0xff;
2306         drv_secs = (ha->info2 >> 8) & 0xff;
2307         drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2308     }
2309     ha->hdr[hdrive].heads = (unchar)drv_hds;
2310     ha->hdr[hdrive].secs  = (unchar)drv_secs;
2311     /* round size */
2312     ha->hdr[hdrive].size  = drv_cyls * drv_hds * drv_secs;
2313
2314     if (ha->cache_feat & GDT_64BIT) {
2315         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INFO,hdrive,0,0)
2316             && ha->info2 != 0) {
2317             ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2318         }
2319     }
2320     TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2321             hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2322
2323     /* get informations about device */
2324     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_DEVTYPE,hdrive,0,0)) {
2325         TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2326                 hdrive,ha->info));
2327         ha->hdr[hdrive].devtype = (ushort)ha->info;
2328     }
2329
2330     /* cluster info */
2331     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_CLUST_INFO,hdrive,0,0)) {
2332         TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2333                 hdrive,ha->info));
2334         if (!shared_access)
2335             ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2336     }
2337
2338     /* R/W attributes */
2339     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_RW_ATTRIBS,hdrive,0,0)) {
2340         TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2341                 hdrive,ha->info));
2342         ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2343     }
2344
2345     return 1;
2346 }
2347
2348
2349 /* command queueing/sending functions */
2350
2351 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority)
2352 {
2353     register gdth_ha_str *ha;
2354     register Scsi_Cmnd *pscp;
2355     register Scsi_Cmnd *nscp;
2356     ulong flags;
2357     unchar b, t;
2358
2359     TRACE(("gdth_putq() priority %d\n",priority));
2360     ha = HADATA(gdth_ctr_tab[hanum]);
2361     spin_lock_irqsave(&ha->smp_lock, flags);
2362
2363     if (scp->done != gdth_scsi_done) {
2364         scp->SCp.this_residual = (int)priority;
2365         b = virt_ctr ? NUMDATA(scp->device->host)->busnum:scp->device->channel;
2366         t = scp->device->id;
2367         if (priority >= DEFAULT_PRI) {
2368             if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2369                 (b==ha->virt_bus && t<MAX_HDRIVES && ha->hdr[t].lock)) {
2370                 TRACE2(("gdth_putq(): locked IO ->update_timeout()\n"));
2371                 scp->SCp.buffers_residual = gdth_update_timeout(hanum, scp, 0);
2372             }
2373         }
2374     }
2375
2376     if (ha->req_first==NULL) {
2377         ha->req_first = scp;                    /* queue was empty */
2378         scp->SCp.ptr = NULL;
2379     } else {                                    /* queue not empty */
2380         pscp = ha->req_first;
2381         nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2382         /* priority: 0-highest,..,0xff-lowest */
2383         while (nscp && (unchar)nscp->SCp.this_residual <= priority) {
2384             pscp = nscp;
2385             nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2386         }
2387         pscp->SCp.ptr = (char *)scp;
2388         scp->SCp.ptr  = (char *)nscp;
2389     }
2390     spin_unlock_irqrestore(&ha->smp_lock, flags);
2391
2392 #ifdef GDTH_STATISTICS
2393     flags = 0;
2394     for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2395         ++flags;
2396     if (max_rq < flags) {
2397         max_rq = flags;
2398         TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2399     }
2400 #endif
2401 }
2402
2403 static void gdth_next(int hanum)
2404 {
2405     register gdth_ha_str *ha;
2406     register Scsi_Cmnd *pscp;
2407     register Scsi_Cmnd *nscp;
2408     unchar b, t, l, firsttime;
2409     unchar this_cmd, next_cmd;
2410     ulong flags = 0;
2411     int cmd_index;
2412
2413     TRACE(("gdth_next() hanum %d\n",hanum));
2414     ha = HADATA(gdth_ctr_tab[hanum]);
2415     if (!gdth_polling)
2416         spin_lock_irqsave(&ha->smp_lock, flags);
2417
2418     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2419     this_cmd = firsttime = TRUE;
2420     next_cmd = gdth_polling ? FALSE:TRUE;
2421     cmd_index = 0;
2422
2423     for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2424         if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2425             pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2426         if (nscp->done != gdth_scsi_done) {
2427             b = virt_ctr ?
2428                 NUMDATA(nscp->device->host)->busnum : nscp->device->channel;
2429             t = nscp->device->id;
2430             l = nscp->device->lun;
2431             if (nscp->SCp.this_residual >= DEFAULT_PRI) {
2432                 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2433                     (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2434                     continue;
2435             }
2436         } else
2437             b = t = l = 0;
2438
2439         if (firsttime) {
2440             if (gdth_test_busy(hanum)) {        /* controller busy ? */
2441                 TRACE(("gdth_next() controller %d busy !\n",hanum));
2442                 if (!gdth_polling) {
2443                     spin_unlock_irqrestore(&ha->smp_lock, flags);
2444                     return;
2445                 }
2446                 while (gdth_test_busy(hanum))
2447                     gdth_delay(1);
2448             }
2449             firsttime = FALSE;
2450         }
2451
2452         if (nscp->done != gdth_scsi_done) {
2453         if (nscp->SCp.phase == -1) {
2454             nscp->SCp.phase = CACHESERVICE;           /* default: cache svc. */
2455             if (nscp->cmnd[0] == TEST_UNIT_READY) {
2456                 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2457                         b, t, l));
2458                 /* TEST_UNIT_READY -> set scan mode */
2459                 if ((ha->scan_mode & 0x0f) == 0) {
2460                     if (b == 0 && t == 0 && l == 0) {
2461                         ha->scan_mode |= 1;
2462                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2463                     }
2464                 } else if ((ha->scan_mode & 0x0f) == 1) {
2465                     if (b == 0 && ((t == 0 && l == 1) ||
2466                          (t == 1 && l == 0))) {
2467                         nscp->SCp.sent_command = GDT_SCAN_START;
2468                         nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2469                             | SCSIRAWSERVICE;
2470                         ha->scan_mode = 0x12;
2471                         TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2472                                 ha->scan_mode));
2473                     } else {
2474                         ha->scan_mode &= 0x10;
2475                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2476                     }
2477                 } else if (ha->scan_mode == 0x12) {
2478                     if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2479                         nscp->SCp.phase = SCSIRAWSERVICE;
2480                         nscp->SCp.sent_command = GDT_SCAN_END;
2481                         ha->scan_mode &= 0x10;
2482                         TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2483                                 ha->scan_mode));
2484                     }
2485                 }
2486             }
2487             if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2488                 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2489                 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2490                 /* always GDT_CLUST_INFO! */
2491                 nscp->SCp.sent_command = GDT_CLUST_INFO;
2492             }
2493         }
2494         }
2495
2496         if (nscp->SCp.sent_command != -1) {
2497             if ((nscp->SCp.phase & 0xff) == CACHESERVICE) {
2498                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2499                     this_cmd = FALSE;
2500                 next_cmd = FALSE;
2501             } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) {
2502                 if (!(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2503                     this_cmd = FALSE;
2504                 next_cmd = FALSE;
2505             } else {
2506                 memset((char*)nscp->sense_buffer,0,16);
2507                 nscp->sense_buffer[0] = 0x70;
2508                 nscp->sense_buffer[2] = NOT_READY;
2509                 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2510                 if (!nscp->SCp.have_data_in)
2511                     nscp->SCp.have_data_in++;
2512                 else
2513                     nscp->scsi_done(nscp);
2514             }
2515         } else if (nscp->done == gdth_scsi_done) {
2516             if (!(cmd_index=gdth_special_cmd(hanum,nscp)))
2517                 this_cmd = FALSE;
2518             next_cmd = FALSE;
2519         } else if (b != ha->virt_bus) {
2520             if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2521                 !(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2522                 this_cmd = FALSE;
2523             else
2524                 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2525         } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2526             TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2527                     nscp->cmnd[0], b, t, l));
2528             nscp->result = DID_BAD_TARGET << 16;
2529             if (!nscp->SCp.have_data_in)
2530                 nscp->SCp.have_data_in++;
2531             else
2532                 nscp->scsi_done(nscp);
2533         } else {
2534             switch (nscp->cmnd[0]) {
2535               case TEST_UNIT_READY:
2536               case INQUIRY:
2537               case REQUEST_SENSE:
2538               case READ_CAPACITY:
2539               case VERIFY:
2540               case START_STOP:
2541               case MODE_SENSE:
2542               case SERVICE_ACTION_IN:
2543                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2544                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2545                        nscp->cmnd[4],nscp->cmnd[5]));
2546                 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2547                     /* return UNIT_ATTENTION */
2548                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2549                              nscp->cmnd[0], t));
2550                     ha->hdr[t].media_changed = FALSE;
2551                     memset((char*)nscp->sense_buffer,0,16);
2552                     nscp->sense_buffer[0] = 0x70;
2553                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2554                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2555                     if (!nscp->SCp.have_data_in)
2556                         nscp->SCp.have_data_in++;
2557                     else
2558                         nscp->scsi_done(nscp);
2559                 } else if (gdth_internal_cache_cmd(hanum,nscp))
2560                     nscp->scsi_done(nscp);
2561                 break;
2562
2563               case ALLOW_MEDIUM_REMOVAL:
2564                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2565                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2566                        nscp->cmnd[4],nscp->cmnd[5]));
2567                 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2568                     TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2569                     nscp->result = DID_OK << 16;
2570                     nscp->sense_buffer[0] = 0;
2571                     if (!nscp->SCp.have_data_in)
2572                         nscp->SCp.have_data_in++;
2573                     else
2574                         nscp->scsi_done(nscp);
2575                 } else {
2576                     nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2577                     TRACE(("Prevent/allow r. %d rem. drive %d\n",
2578                            nscp->cmnd[4],nscp->cmnd[3]));
2579                     if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2580                         this_cmd = FALSE;
2581                 }
2582                 break;
2583
2584               case RESERVE:
2585               case RELEASE:
2586                 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2587                         "RESERVE" : "RELEASE"));
2588                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2589                     this_cmd = FALSE;
2590                 break;
2591
2592               case READ_6:
2593               case WRITE_6:
2594               case READ_10:
2595               case WRITE_10:
2596               case READ_16:
2597               case WRITE_16:
2598                 if (ha->hdr[t].media_changed) {
2599                     /* return UNIT_ATTENTION */
2600                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2601                              nscp->cmnd[0], t));
2602                     ha->hdr[t].media_changed = FALSE;
2603                     memset((char*)nscp->sense_buffer,0,16);
2604                     nscp->sense_buffer[0] = 0x70;
2605                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2606                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2607                     if (!nscp->SCp.have_data_in)
2608                         nscp->SCp.have_data_in++;
2609                     else
2610                         nscp->scsi_done(nscp);
2611                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2612                     this_cmd = FALSE;
2613                 break;
2614
2615               default:
2616                 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2617                         nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2618                         nscp->cmnd[4],nscp->cmnd[5]));
2619                 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2620                        hanum, nscp->cmnd[0]);
2621                 nscp->result = DID_ABORT << 16;
2622                 if (!nscp->SCp.have_data_in)
2623                     nscp->SCp.have_data_in++;
2624                 else
2625                     nscp->scsi_done(nscp);
2626                 break;
2627             }
2628         }
2629
2630         if (!this_cmd)
2631             break;
2632         if (nscp == ha->req_first)
2633             ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2634         else
2635             pscp->SCp.ptr = nscp->SCp.ptr;
2636         if (!next_cmd)
2637             break;
2638     }
2639
2640     if (ha->cmd_cnt > 0) {
2641         gdth_release_event(hanum);
2642     }
2643
2644     if (!gdth_polling)
2645         spin_unlock_irqrestore(&ha->smp_lock, flags);
2646
2647     if (gdth_polling && ha->cmd_cnt > 0) {
2648         if (!gdth_wait(hanum,cmd_index,POLL_TIMEOUT))
2649             printk("GDT-HA %d: Command %d timed out !\n",
2650                    hanum,cmd_index);
2651     }
2652 }
2653
2654 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
2655                                     char *buffer,ushort count)
2656 {
2657     ushort cpcount,i;
2658     ushort cpsum,cpnow;
2659     struct scatterlist *sl;
2660     gdth_ha_str *ha;
2661     char *address;
2662
2663     cpcount = count<=(ushort)scp->request_bufflen ? count:(ushort)scp->request_bufflen;
2664     ha = HADATA(gdth_ctr_tab[hanum]);
2665
2666     if (scp->use_sg) {
2667         sl = (struct scatterlist *)scp->request_buffer;
2668         for (i=0,cpsum=0; i<scp->use_sg; ++i,++sl) {
2669             unsigned long flags;
2670             cpnow = (ushort)sl->length;
2671             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2672                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2673             if (cpsum+cpnow > cpcount)
2674                 cpnow = cpcount - cpsum;
2675             cpsum += cpnow;
2676             if (!sl->page) {
2677                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2678                        hanum);
2679                 return;
2680             }
2681             local_irq_save(flags);
2682 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2683             address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
2684             memcpy(address,buffer,cpnow);
2685             flush_dcache_page(sl->page);
2686             kunmap_atomic(address, KM_BIO_SRC_IRQ);
2687 #else
2688             address = kmap_atomic(sl->page, KM_BH_IRQ) + sl->offset;
2689             memcpy(address,buffer,cpnow);
2690             flush_dcache_page(sl->page);
2691             kunmap_atomic(address, KM_BH_IRQ);
2692 #endif
2693             local_irq_restore(flags);
2694             if (cpsum == cpcount)
2695                 break;
2696             buffer += cpnow;
2697         }
2698     } else {
2699         TRACE(("copy_internal() count %d\n",cpcount));
2700         memcpy((char*)scp->request_buffer,buffer,cpcount);
2701     }
2702 }
2703
2704 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp)
2705 {
2706     register gdth_ha_str *ha;
2707     unchar t;
2708     gdth_inq_data inq;
2709     gdth_rdcap_data rdc;
2710     gdth_sense_data sd;
2711     gdth_modep_data mpd;
2712
2713     ha = HADATA(gdth_ctr_tab[hanum]);
2714     t  = scp->device->id;
2715     TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2716            scp->cmnd[0],t));
2717
2718     scp->result = DID_OK << 16;
2719     scp->sense_buffer[0] = 0;
2720
2721     switch (scp->cmnd[0]) {
2722       case TEST_UNIT_READY:
2723       case VERIFY:
2724       case START_STOP:
2725         TRACE2(("Test/Verify/Start hdrive %d\n",t));
2726         break;
2727
2728       case INQUIRY:
2729         TRACE2(("Inquiry hdrive %d devtype %d\n",
2730                 t,ha->hdr[t].devtype));
2731         inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2732         /* you can here set all disks to removable, if you want to do
2733            a flush using the ALLOW_MEDIUM_REMOVAL command */
2734         inq.modif_rmb = 0x00;
2735         if ((ha->hdr[t].devtype & 1) ||
2736             (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2737             inq.modif_rmb = 0x80;
2738         inq.version   = 2;
2739         inq.resp_aenc = 2;
2740         inq.add_length= 32;
2741         strcpy(inq.vendor,ha->oem_name);
2742         sprintf(inq.product,"Host Drive  #%02d",t);
2743         strcpy(inq.revision,"   ");
2744         gdth_copy_internal_data(hanum,scp,(char*)&inq,sizeof(gdth_inq_data));
2745         break;
2746
2747       case REQUEST_SENSE:
2748         TRACE2(("Request sense hdrive %d\n",t));
2749         sd.errorcode = 0x70;
2750         sd.segno     = 0x00;
2751         sd.key       = NO_SENSE;
2752         sd.info      = 0;
2753         sd.add_length= 0;
2754         gdth_copy_internal_data(hanum,scp,(char*)&sd,sizeof(gdth_sense_data));
2755         break;
2756
2757       case MODE_SENSE:
2758         TRACE2(("Mode sense hdrive %d\n",t));
2759         memset((char*)&mpd,0,sizeof(gdth_modep_data));
2760         mpd.hd.data_length = sizeof(gdth_modep_data);
2761         mpd.hd.dev_par     = (ha->hdr[t].devtype&2) ? 0x80:0;
2762         mpd.hd.bd_length   = sizeof(mpd.bd);
2763         mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2764         mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2765         mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2766         gdth_copy_internal_data(hanum,scp,(char*)&mpd,sizeof(gdth_modep_data));
2767         break;
2768
2769       case READ_CAPACITY:
2770         TRACE2(("Read capacity hdrive %d\n",t));
2771         if (ha->hdr[t].size > (ulong64)0xffffffff)
2772             rdc.last_block_no = 0xffffffff;
2773         else
2774             rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2775         rdc.block_length  = cpu_to_be32(SECTOR_SIZE);
2776         gdth_copy_internal_data(hanum,scp,(char*)&rdc,sizeof(gdth_rdcap_data));
2777         break;
2778
2779       case SERVICE_ACTION_IN:
2780         if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2781             (ha->cache_feat & GDT_64BIT)) {
2782             gdth_rdcap16_data rdc16;
2783
2784             TRACE2(("Read capacity (16) hdrive %d\n",t));
2785             rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2786             rdc16.block_length  = cpu_to_be32(SECTOR_SIZE);
2787             gdth_copy_internal_data(hanum,scp,(char*)&rdc16,sizeof(gdth_rdcap16_data));
2788         } else {
2789             scp->result = DID_ABORT << 16;
2790         }
2791         break;
2792
2793       default:
2794         TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2795         break;
2796     }
2797
2798     if (!scp->SCp.have_data_in)
2799         scp->SCp.have_data_in++;
2800     else
2801         return 1;
2802
2803     return 0;
2804 }
2805
2806 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
2807 {
2808     register gdth_ha_str *ha;
2809     register gdth_cmd_str *cmdp;
2810     struct scatterlist *sl;
2811     ulong32 cnt, blockcnt;
2812     ulong64 no, blockno;
2813     dma_addr_t phys_addr;
2814     int i, cmd_index, read_write, sgcnt, mode64;
2815     struct page *page;
2816     ulong offset;
2817
2818     ha = HADATA(gdth_ctr_tab[hanum]);
2819     cmdp = ha->pccb;
2820     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2821                  scp->cmnd[0],scp->cmd_len,hdrive));
2822
2823     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2824         return 0;
2825
2826     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2827     /* test for READ_16, WRITE_16 if !mode64 ? ---
2828        not required, should not occur due to error return on
2829        READ_CAPACITY_16 */
2830
2831     cmdp->Service = CACHESERVICE;
2832     cmdp->RequestBuffer = scp;
2833     /* search free command index */
2834     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2835         TRACE(("GDT: No free command index found\n"));
2836         return 0;
2837     }
2838     /* if it's the first command, set command semaphore */
2839     if (ha->cmd_cnt == 0)
2840         gdth_set_sema0(hanum);
2841
2842     /* fill command */
2843     read_write = 0;
2844     if (scp->SCp.sent_command != -1)
2845         cmdp->OpCode = scp->SCp.sent_command;   /* special cache cmd. */
2846     else if (scp->cmnd[0] == RESERVE)
2847         cmdp->OpCode = GDT_RESERVE_DRV;
2848     else if (scp->cmnd[0] == RELEASE)
2849         cmdp->OpCode = GDT_RELEASE_DRV;
2850     else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2851         if (scp->cmnd[4] & 1)                   /* prevent ? */
2852             cmdp->OpCode = GDT_MOUNT;
2853         else if (scp->cmnd[3] & 1)              /* removable drive ? */
2854             cmdp->OpCode = GDT_UNMOUNT;
2855         else
2856             cmdp->OpCode = GDT_FLUSH;
2857     } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2858                scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2859     ) {
2860         read_write = 1;
2861         if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2862                                    (ha->cache_feat & GDT_WR_THROUGH)))
2863             cmdp->OpCode = GDT_WRITE_THR;
2864         else
2865             cmdp->OpCode = GDT_WRITE;
2866     } else {
2867         read_write = 2;
2868         cmdp->OpCode = GDT_READ;
2869     }
2870
2871     cmdp->BoardNode = LOCALBOARD;
2872     if (mode64) {
2873         cmdp->u.cache64.DeviceNo = hdrive;
2874         cmdp->u.cache64.BlockNo  = 1;
2875         cmdp->u.cache64.sg_canz  = 0;
2876     } else {
2877         cmdp->u.cache.DeviceNo = hdrive;
2878         cmdp->u.cache.BlockNo  = 1;
2879         cmdp->u.cache.sg_canz  = 0;
2880     }
2881
2882     if (read_write) {
2883         if (scp->cmd_len == 16) {
2884             memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2885             blockno = be64_to_cpu(no);
2886             memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2887             blockcnt = be32_to_cpu(cnt);
2888         } else if (scp->cmd_len == 10) {
2889             memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2890             blockno = be32_to_cpu(no);
2891             memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2892             blockcnt = be16_to_cpu(cnt);
2893         } else {
2894             memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2895             blockno = be32_to_cpu(no) & 0x001fffffUL;
2896             blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2897         }
2898         if (mode64) {
2899             cmdp->u.cache64.BlockNo = blockno;
2900             cmdp->u.cache64.BlockCnt = blockcnt;
2901         } else {
2902             cmdp->u.cache.BlockNo = (ulong32)blockno;
2903             cmdp->u.cache.BlockCnt = blockcnt;
2904         }
2905
2906         if (scp->use_sg) {
2907             sl = (struct scatterlist *)scp->request_buffer;
2908             sgcnt = scp->use_sg;
2909             scp->SCp.Status = GDTH_MAP_SG;
2910             scp->SCp.Message = (read_write == 1 ?
2911                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2912             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2913             if (mode64) {
2914                 cmdp->u.cache64.DestAddr= (ulong64)-1;
2915                 cmdp->u.cache64.sg_canz = sgcnt;
2916                 for (i=0; i<sgcnt; ++i,++sl) {
2917                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2918 #ifdef GDTH_DMA_STATISTICS
2919                     if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2920                         ha->dma64_cnt++;
2921                     else
2922                         ha->dma32_cnt++;
2923 #endif
2924                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2925                 }
2926             } else {
2927                 cmdp->u.cache.DestAddr= 0xffffffff;
2928                 cmdp->u.cache.sg_canz = sgcnt;
2929                 for (i=0; i<sgcnt; ++i,++sl) {
2930                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2931 #ifdef GDTH_DMA_STATISTICS
2932                     ha->dma32_cnt++;
2933 #endif
2934                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2935                 }
2936             }
2937
2938 #ifdef GDTH_STATISTICS
2939             if (max_sg < (ulong32)sgcnt) {
2940                 max_sg = (ulong32)sgcnt;
2941                 TRACE3(("GDT: max_sg = %d\n",max_sg));
2942             }
2943 #endif
2944
2945         } else if (scp->request_bufflen) {
2946             scp->SCp.Status = GDTH_MAP_SINGLE;
2947             scp->SCp.Message = (read_write == 1 ?
2948                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2949             page = virt_to_page(scp->request_buffer);
2950             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
2951             phys_addr = pci_map_page(ha->pdev,page,offset,
2952                                      scp->request_bufflen,scp->SCp.Message);
2953             scp->SCp.dma_handle = phys_addr;
2954             if (mode64) {
2955                 if (ha->cache_feat & SCATTER_GATHER) {
2956                     cmdp->u.cache64.DestAddr = (ulong64)-1;
2957                     cmdp->u.cache64.sg_canz = 1;
2958                     cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr;
2959                     cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen;
2960                     cmdp->u.cache64.sg_lst[1].sg_len = 0;
2961                 } else {
2962                     cmdp->u.cache64.DestAddr  = phys_addr;
2963                     cmdp->u.cache64.sg_canz= 0;
2964                 }
2965             } else {
2966                 if (ha->cache_feat & SCATTER_GATHER) {
2967                     cmdp->u.cache.DestAddr = 0xffffffff;
2968                     cmdp->u.cache.sg_canz = 1;
2969                     cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr;
2970                     cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen;
2971                     cmdp->u.cache.sg_lst[1].sg_len = 0;
2972                 } else {
2973                     cmdp->u.cache.DestAddr  = phys_addr;
2974                     cmdp->u.cache.sg_canz= 0;
2975                 }
2976             }
2977         }
2978     }
2979     /* evaluate command size, check space */
2980     if (mode64) {
2981         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2982                cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2983                cmdp->u.cache64.sg_lst[0].sg_ptr,
2984                cmdp->u.cache64.sg_lst[0].sg_len));
2985         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2986                cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2987         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2988             (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2989     } else {
2990         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2991                cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2992                cmdp->u.cache.sg_lst[0].sg_ptr,
2993                cmdp->u.cache.sg_lst[0].sg_len));
2994         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2995                cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2996         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2997             (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2998     }
2999     if (ha->cmd_len & 3)
3000         ha->cmd_len += (4 - (ha->cmd_len & 3));
3001
3002     if (ha->cmd_cnt > 0) {
3003         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3004             ha->ic_all_size) {
3005             TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
3006             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3007             return 0;
3008         }
3009     }
3010
3011     /* copy command */
3012     gdth_copy_command(hanum);
3013     return cmd_index;
3014 }
3015
3016 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b)
3017 {
3018     register gdth_ha_str *ha;
3019     register gdth_cmd_str *cmdp;
3020     struct scatterlist *sl;
3021     ushort i;
3022     dma_addr_t phys_addr, sense_paddr;
3023     int cmd_index, sgcnt, mode64;
3024     unchar t,l;
3025     struct page *page;
3026     ulong offset;
3027
3028     ha = HADATA(gdth_ctr_tab[hanum]);
3029     t = scp->device->id;
3030     l = scp->device->lun;
3031     cmdp = ha->pccb;
3032     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
3033            scp->cmnd[0],b,t,l));
3034
3035     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3036         return 0;
3037
3038     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
3039
3040     cmdp->Service = SCSIRAWSERVICE;
3041     cmdp->RequestBuffer = scp;
3042     /* search free command index */
3043     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3044         TRACE(("GDT: No free command index found\n"));
3045         return 0;
3046     }
3047     /* if it's the first command, set command semaphore */
3048     if (ha->cmd_cnt == 0)
3049         gdth_set_sema0(hanum);
3050
3051     /* fill command */
3052     if (scp->SCp.sent_command != -1) {
3053         cmdp->OpCode           = scp->SCp.sent_command; /* special raw cmd. */
3054         cmdp->BoardNode        = LOCALBOARD;
3055         if (mode64) {
3056             cmdp->u.raw64.direction = (scp->SCp.phase >> 8);
3057             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3058                     cmdp->OpCode, cmdp->u.raw64.direction));
3059             /* evaluate command size */
3060             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
3061         } else {
3062             cmdp->u.raw.direction  = (scp->SCp.phase >> 8);
3063             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3064                     cmdp->OpCode, cmdp->u.raw.direction));
3065             /* evaluate command size */
3066             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
3067         }
3068
3069     } else {
3070         page = virt_to_page(scp->sense_buffer);
3071         offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
3072         sense_paddr = pci_map_page(ha->pdev,page,offset,
3073                                    16,PCI_DMA_FROMDEVICE);
3074         *(ulong32 *)&scp->SCp.buffer = (ulong32)sense_paddr;
3075         /* high part, if 64bit */
3076         *(ulong32 *)&scp->host_scribble = (ulong32)((ulong64)sense_paddr >> 32);
3077         cmdp->OpCode           = GDT_WRITE;             /* always */
3078         cmdp->BoardNode        = LOCALBOARD;
3079         if (mode64) {
3080             cmdp->u.raw64.reserved   = 0;
3081             cmdp->u.raw64.mdisc_time = 0;
3082             cmdp->u.raw64.mcon_time  = 0;
3083             cmdp->u.raw64.clen       = scp->cmd_len;
3084             cmdp->u.raw64.target     = t;
3085             cmdp->u.raw64.lun        = l;
3086             cmdp->u.raw64.bus        = b;
3087             cmdp->u.raw64.priority   = 0;
3088             cmdp->u.raw64.sdlen      = scp->request_bufflen;
3089             cmdp->u.raw64.sense_len  = 16;
3090             cmdp->u.raw64.sense_data = sense_paddr;
3091             cmdp->u.raw64.direction  =
3092                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3093             memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
3094         } else {
3095             cmdp->u.raw.reserved   = 0;
3096             cmdp->u.raw.mdisc_time = 0;
3097             cmdp->u.raw.mcon_time  = 0;
3098             cmdp->u.raw.clen       = scp->cmd_len;
3099             cmdp->u.raw.target     = t;
3100             cmdp->u.raw.lun        = l;
3101             cmdp->u.raw.bus        = b;
3102             cmdp->u.raw.priority   = 0;
3103             cmdp->u.raw.link_p     = 0;
3104             cmdp->u.raw.sdlen      = scp->request_bufflen;
3105             cmdp->u.raw.sense_len  = 16;
3106             cmdp->u.raw.sense_data = sense_paddr;
3107             cmdp->u.raw.direction  =
3108                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3109             memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
3110         }
3111
3112         if (scp->use_sg) {
3113             sl = (struct scatterlist *)scp->request_buffer;
3114             sgcnt = scp->use_sg;
3115             scp->SCp.Status = GDTH_MAP_SG;
3116             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3117             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
3118             if (mode64) {
3119                 cmdp->u.raw64.sdata = (ulong64)-1;
3120                 cmdp->u.raw64.sg_ranz = sgcnt;
3121                 for (i=0; i<sgcnt; ++i,++sl) {
3122                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
3123 #ifdef GDTH_DMA_STATISTICS
3124                     if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
3125                         ha->dma64_cnt++;
3126                     else
3127                         ha->dma32_cnt++;
3128 #endif
3129                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
3130                 }
3131             } else {
3132                 cmdp->u.raw.sdata = 0xffffffff;
3133                 cmdp->u.raw.sg_ranz = sgcnt;
3134                 for (i=0; i<sgcnt; ++i,++sl) {
3135                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
3136 #ifdef GDTH_DMA_STATISTICS
3137                     ha->dma32_cnt++;
3138 #endif
3139                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
3140                 }
3141             }
3142
3143 #ifdef GDTH_STATISTICS
3144             if (max_sg < sgcnt) {
3145                 max_sg = sgcnt;
3146                 TRACE3(("GDT: max_sg = %d\n",sgcnt));
3147             }
3148 #endif
3149
3150         } else if (scp->request_bufflen) {
3151             scp->SCp.Status = GDTH_MAP_SINGLE;
3152             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3153             page = virt_to_page(scp->request_buffer);
3154             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3155             phys_addr = pci_map_page(ha->pdev,page,offset,
3156                                      scp->request_bufflen,scp->SCp.Message);
3157             scp->SCp.dma_handle = phys_addr;
3158
3159             if (mode64) {
3160                 if (ha->raw_feat & SCATTER_GATHER) {
3161                     cmdp->u.raw64.sdata  = (ulong64)-1;
3162                     cmdp->u.raw64.sg_ranz= 1;
3163                     cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr;
3164                     cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen;
3165                     cmdp->u.raw64.sg_lst[1].sg_len = 0;
3166                 } else {
3167                     cmdp->u.raw64.sdata  = phys_addr;
3168                     cmdp->u.raw64.sg_ranz= 0;
3169                 }
3170             } else {
3171                 if (ha->raw_feat & SCATTER_GATHER) {
3172                     cmdp->u.raw.sdata  = 0xffffffff;
3173                     cmdp->u.raw.sg_ranz= 1;
3174                     cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr;
3175                     cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen;
3176                     cmdp->u.raw.sg_lst[1].sg_len = 0;
3177                 } else {
3178                     cmdp->u.raw.sdata  = phys_addr;
3179                     cmdp->u.raw.sg_ranz= 0;
3180                 }
3181             }
3182         }
3183         if (mode64) {
3184             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3185                    cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
3186                    cmdp->u.raw64.sg_lst[0].sg_ptr,
3187                    cmdp->u.raw64.sg_lst[0].sg_len));
3188             /* evaluate command size */
3189             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
3190                 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
3191         } else {
3192             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3193                    cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
3194                    cmdp->u.raw.sg_lst[0].sg_ptr,
3195                    cmdp->u.raw.sg_lst[0].sg_len));
3196             /* evaluate command size */
3197             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
3198                 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
3199         }
3200     }
3201     /* check space */
3202     if (ha->cmd_len & 3)
3203         ha->cmd_len += (4 - (ha->cmd_len & 3));
3204
3205     if (ha->cmd_cnt > 0) {
3206         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3207             ha->ic_all_size) {
3208             TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
3209             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3210             return 0;
3211         }
3212     }
3213
3214     /* copy command */
3215     gdth_copy_command(hanum);
3216     return cmd_index;
3217 }
3218
3219 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp)
3220 {
3221     register gdth_ha_str *ha;
3222     register gdth_cmd_str *cmdp;
3223     int cmd_index;
3224
3225     ha  = HADATA(gdth_ctr_tab[hanum]);
3226     cmdp= ha->pccb;
3227     TRACE2(("gdth_special_cmd(): "));
3228
3229     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3230         return 0;
3231
3232     memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str));
3233     cmdp->RequestBuffer = scp;
3234
3235     /* search free command index */
3236     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3237         TRACE(("GDT: No free command index found\n"));
3238         return 0;
3239     }
3240
3241     /* if it's the first command, set command semaphore */
3242     if (ha->cmd_cnt == 0)
3243        gdth_set_sema0(hanum);
3244
3245     /* evaluate command size, check space */
3246     if (cmdp->OpCode == GDT_IOCTL) {
3247         TRACE2(("IOCTL\n"));
3248         ha->cmd_len =
3249             GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
3250     } else if (cmdp->Service == CACHESERVICE) {
3251         TRACE2(("cache command %d\n",cmdp->OpCode));
3252         if (ha->cache_feat & GDT_64BIT)
3253             ha->cmd_len =
3254                 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
3255         else
3256             ha->cmd_len =
3257                 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
3258     } else if (cmdp->Service == SCSIRAWSERVICE) {
3259         TRACE2(("raw command %d\n",cmdp->OpCode));
3260         if (ha->raw_feat & GDT_64BIT)
3261             ha->cmd_len =
3262                 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
3263         else
3264             ha->cmd_len =
3265                 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
3266     }
3267
3268     if (ha->cmd_len & 3)
3269         ha->cmd_len += (4 - (ha->cmd_len & 3));
3270
3271     if (ha->cmd_cnt > 0) {
3272         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3273             ha->ic_all_size) {
3274             TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
3275             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3276             return 0;
3277         }
3278     }
3279
3280     /* copy command */
3281     gdth_copy_command(hanum);
3282     return cmd_index;
3283 }
3284
3285
3286 /* Controller event handling functions */
3287 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
3288                                       ushort idx, gdth_evt_data *evt)
3289 {
3290     gdth_evt_str *e;
3291     struct timeval tv;
3292
3293     /* no GDTH_LOCK_HA() ! */
3294     TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
3295     if (source == 0)                        /* no source -> no event */
3296         return NULL;
3297
3298     if (ebuffer[elastidx].event_source == source &&
3299         ebuffer[elastidx].event_idx == idx &&
3300         ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
3301             !memcmp((char *)&ebuffer[elastidx].event_data.eu,
3302             (char *)&evt->eu, evt->size)) ||
3303         (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
3304             !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
3305             (char *)&evt->event_string)))) {
3306         e = &ebuffer[elastidx];
3307         do_gettimeofday(&tv);
3308         e->last_stamp = tv.tv_sec;
3309         ++e->same_count;
3310     } else {
3311         if (ebuffer[elastidx].event_source != 0) {  /* entry not free ? */
3312             ++elastidx;
3313             if (elastidx == MAX_EVENTS)
3314                 elastidx = 0;
3315             if (elastidx == eoldidx) {              /* reached mark ? */
3316                 ++eoldidx;
3317                 if (eoldidx == MAX_EVENTS)
3318                     eoldidx = 0;
3319             }
3320         }
3321         e = &ebuffer[elastidx];
3322         e->event_source = source;
3323         e->event_idx = idx;
3324         do_gettimeofday(&tv);
3325         e->first_stamp = e->last_stamp = tv.tv_sec;
3326         e->same_count = 1;
3327         e->event_data = *evt;
3328         e->application = 0;
3329     }
3330     return e;
3331 }
3332
3333 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
3334 {
3335     gdth_evt_str *e;
3336     int eindex;
3337     ulong flags;
3338
3339     TRACE2(("gdth_read_event() handle %d\n", handle));
3340     spin_lock_irqsave(&ha->smp_lock, flags);
3341     if (handle == -1)
3342         eindex = eoldidx;
3343     else
3344         eindex = handle;
3345     estr->event_source = 0;
3346
3347     if (eindex >= MAX_EVENTS) {
3348         spin_unlock_irqrestore(&ha->smp_lock, flags);
3349         return eindex;
3350     }
3351     e = &ebuffer[eindex];
3352     if (e->event_source != 0) {
3353         if (eindex != elastidx) {
3354             if (++eindex == MAX_EVENTS)
3355                 eindex = 0;
3356         } else {
3357             eindex = -1;
3358         }
3359         memcpy(estr, e, sizeof(gdth_evt_str));
3360     }
3361     spin_unlock_irqrestore(&ha->smp_lock, flags);
3362     return eindex;
3363 }
3364
3365 static void gdth_readapp_event(gdth_ha_str *ha,
3366                                unchar application, gdth_evt_str *estr)
3367 {
3368     gdth_evt_str *e;
3369     int eindex;
3370     ulong flags;
3371     unchar found = FALSE;
3372
3373     TRACE2(("gdth_readapp_event() app. %d\n", application));
3374     spin_lock_irqsave(&ha->smp_lock, flags);
3375     eindex = eoldidx;
3376     for (;;) {
3377         e = &ebuffer[eindex];
3378         if (e->event_source == 0)
3379             break;
3380         if ((e->application & application) == 0) {
3381             e->application |= application;
3382             found = TRUE;
3383             break;
3384         }
3385         if (eindex == elastidx)
3386             break;
3387         if (++eindex == MAX_EVENTS)
3388             eindex = 0;
3389     }
3390     if (found)
3391         memcpy(estr, e, sizeof(gdth_evt_str));
3392     else
3393         estr->event_source = 0;
3394     spin_unlock_irqrestore(&ha->smp_lock, flags);
3395 }
3396
3397 static void gdth_clear_events(void)
3398 {
3399     TRACE(("gdth_clear_events()"));
3400
3401     eoldidx = elastidx = 0;
3402     ebuffer[0].event_source = 0;
3403 }
3404
3405
3406 /* SCSI interface functions */
3407
3408 static irqreturn_t gdth_interrupt(int irq,void *dev_id)
3409 {
3410     gdth_ha_str *ha2 = (gdth_ha_str *)dev_id;
3411     register gdth_ha_str *ha;
3412     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
3413     gdt6_dpram_str __iomem *dp6_ptr;
3414     gdt2_dpram_str __iomem *dp2_ptr;
3415     Scsi_Cmnd *scp;
3416     int hanum, rval, i;
3417     unchar IStatus;
3418     ushort Service;
3419     ulong flags = 0;
3420 #ifdef INT_COAL
3421     int coalesced = FALSE;
3422     int next = FALSE;
3423     gdth_coal_status *pcs = NULL;
3424     int act_int_coal = 0;
3425 #endif
3426
3427     TRACE(("gdth_interrupt() IRQ %d\n",irq));
3428
3429     /* if polling and not from gdth_wait() -> return */
3430     if (gdth_polling) {
3431         if (!gdth_from_wait) {
3432             return IRQ_HANDLED;
3433         }
3434     }
3435
3436     if (!gdth_polling)
3437         spin_lock_irqsave(&ha2->smp_lock, flags);
3438     wait_index = 0;
3439
3440     /* search controller */
3441     if ((hanum = gdth_get_status(&IStatus,irq)) == -1) {
3442         /* spurious interrupt */
3443         if (!gdth_polling)
3444             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3445             return IRQ_HANDLED;
3446     }
3447     ha = HADATA(gdth_ctr_tab[hanum]);
3448
3449 #ifdef GDTH_STATISTICS
3450     ++act_ints;
3451 #endif
3452
3453 #ifdef INT_COAL
3454     /* See if the fw is returning coalesced status */
3455     if (IStatus == COALINDEX) {
3456         /* Coalesced status.  Setup the initial status
3457            buffer pointer and flags */
3458         pcs = ha->coal_stat;
3459         coalesced = TRUE;
3460         next = TRUE;
3461     }
3462
3463     do {
3464         if (coalesced) {
3465             /* For coalesced requests all status
3466                information is found in the status buffer */
3467             IStatus = (unchar)(pcs->status & 0xff);
3468         }
3469 #endif
3470
3471         if (ha->type == GDT_EISA) {
3472             if (IStatus & 0x80) {                       /* error flag */
3473                 IStatus &= ~0x80;
3474                 ha->status = inw(ha->bmic + MAILBOXREG+8);
3475                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3476             } else                                      /* no error */
3477                 ha->status = S_OK;
3478             ha->info = inl(ha->bmic + MAILBOXREG+12);
3479             ha->service = inw(ha->bmic + MAILBOXREG+10);
3480             ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3481
3482             outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
3483             outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
3484         } else if (ha->type == GDT_ISA) {
3485             dp2_ptr = ha->brd;
3486             if (IStatus & 0x80) {                       /* error flag */
3487                 IStatus &= ~0x80;
3488                 ha->status = gdth_readw(&dp2_ptr->u.ic.Status);
3489                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3490             } else                                      /* no error */
3491                 ha->status = S_OK;
3492             ha->info = gdth_readl(&dp2_ptr->u.ic.Info[0]);
3493             ha->service = gdth_readw(&dp2_ptr->u.ic.Service);
3494             ha->info2 = gdth_readl(&dp2_ptr->u.ic.Info[1]);
3495
3496             gdth_writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3497             gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3498             gdth_writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
3499         } else if (ha->type == GDT_PCI) {
3500             dp6_ptr = ha->brd;
3501             if (IStatus & 0x80) {                       /* error flag */
3502                 IStatus &= ~0x80;
3503                 ha->status = gdth_readw(&dp6_ptr->u.ic.Status);
3504                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3505             } else                                      /* no error */
3506                 ha->status = S_OK;
3507             ha->info = gdth_readl(&dp6_ptr->u.ic.Info[0]);
3508             ha->service = gdth_readw(&dp6_ptr->u.ic.Service);
3509             ha->info2 = gdth_readl(&dp6_ptr->u.ic.Info[1]);
3510
3511             gdth_writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3512             gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3513             gdth_writeb(0, &dp6_ptr->io.Sema1);     /* reset status semaphore */
3514         } else if (ha->type == GDT_PCINEW) {
3515             if (IStatus & 0x80) {                       /* error flag */
3516                 IStatus &= ~0x80;
3517                 ha->status = inw(PTR2USHORT(&ha->plx->status));
3518                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3519             } else
3520                 ha->status = S_OK;
3521             ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3522             ha->service = inw(PTR2USHORT(&ha->plx->service));
3523             ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3524
3525             outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3526             outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3527         } else if (ha->type == GDT_PCIMPR) {
3528             dp6m_ptr = ha->brd;
3529             if (IStatus & 0x80) {                       /* error flag */
3530                 IStatus &= ~0x80;
3531 #ifdef INT_COAL
3532                 if (coalesced)
3533                     ha->status = pcs->ext_status & 0xffff;
3534                 else
3535 #endif
3536                     ha->status = gdth_readw(&dp6m_ptr->i960r.status);
3537                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3538             } else                                      /* no error */
3539                 ha->status = S_OK;
3540 #ifdef INT_COAL
3541             /* get information */
3542             if (coalesced) {
3543                 ha->info = pcs->info0;
3544                 ha->info2 = pcs->info1;
3545                 ha->service = (pcs->ext_status >> 16) & 0xffff;
3546             } else
3547 #endif
3548             {
3549                 ha->info = gdth_readl(&dp6m_ptr->i960r.info[0]);
3550                 ha->service = gdth_readw(&dp6m_ptr->i960r.service);
3551                 ha->info2 = gdth_readl(&dp6m_ptr->i960r.info[1]);
3552             }
3553             /* event string */
3554             if (IStatus == ASYNCINDEX) {
3555                 if (ha->service != SCREENSERVICE &&
3556                     (ha->fw_vers & 0xff) >= 0x1a) {
3557                     ha->dvr.severity = gdth_readb
3558                         (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3559                     for (i = 0; i < 256; ++i) {
3560                         ha->dvr.event_string[i] = gdth_readb
3561                             (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3562                         if (ha->dvr.event_string[i] == 0)
3563                             break;
3564                     }
3565                 }
3566             }
3567 #ifdef INT_COAL
3568             /* Make sure that non coalesced interrupts get cleared
3569                before being handled by gdth_async_event/gdth_sync_event */
3570             if (!coalesced)
3571 #endif
3572             {
3573                 gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3574                 gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3575             }
3576         } else {
3577             TRACE2(("gdth_interrupt() unknown controller type\n"));
3578             if (!gdth_polling)
3579                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3580             return IRQ_HANDLED;
3581         }
3582
3583         TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3584                IStatus,ha->status,ha->info));
3585
3586         if (gdth_from_wait) {
3587             wait_hanum = hanum;
3588             wait_index = (int)IStatus;
3589         }
3590
3591         if (IStatus == ASYNCINDEX) {
3592             TRACE2(("gdth_interrupt() async. event\n"));
3593             gdth_async_event(hanum);
3594             if (!gdth_polling)
3595                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3596             gdth_next(hanum);
3597             return IRQ_HANDLED;
3598         }
3599
3600         if (IStatus == SPEZINDEX) {
3601             TRACE2(("Service unknown or not initialized !\n"));
3602             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3603             ha->dvr.eu.driver.ionode = hanum;
3604             gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3605             if (!gdth_polling)
3606                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3607             return IRQ_HANDLED;
3608         }
3609         scp     = ha->cmd_tab[IStatus-2].cmnd;
3610         Service = ha->cmd_tab[IStatus-2].service;
3611         ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3612         if (scp == UNUSED_CMND) {
3613             TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3614             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3615             ha->dvr.eu.driver.ionode = hanum;
3616             ha->dvr.eu.driver.index = IStatus;
3617             gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3618             if (!gdth_polling)
3619                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3620             return IRQ_HANDLED;
3621         }
3622         if (scp == INTERNAL_CMND) {
3623             TRACE(("gdth_interrupt() answer to internal command\n"));
3624             if (!gdth_polling)
3625                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3626             return IRQ_HANDLED;
3627         }
3628
3629         TRACE(("gdth_interrupt() sync. status\n"));
3630         rval = gdth_sync_event(hanum,Service,IStatus,scp);
3631         if (!gdth_polling)
3632             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3633         if (rval == 2) {
3634             gdth_putq(hanum,scp,scp->SCp.this_residual);
3635         } else if (rval == 1) {
3636             scp->scsi_done(scp);
3637         }
3638
3639 #ifdef INT_COAL
3640         if (coalesced) {
3641             /* go to the next status in the status buffer */
3642             ++pcs;
3643 #ifdef GDTH_STATISTICS
3644             ++act_int_coal;
3645             if (act_int_coal > max_int_coal) {
3646                 max_int_coal = act_int_coal;
3647                 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3648             }
3649 #endif
3650             /* see if there is another status */
3651             if (pcs->status == 0)
3652                 /* Stop the coalesce loop */
3653                 next = FALSE;
3654         }
3655     } while (next);
3656
3657     /* coalescing only for new GDT_PCIMPR controllers available */
3658     if (ha->type == GDT_PCIMPR && coalesced) {
3659         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3660         gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3661     }
3662 #endif
3663
3664     gdth_next(hanum);
3665     return IRQ_HANDLED;
3666 }
3667
3668 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
3669 {
3670     register gdth_ha_str *ha;
3671     gdth_msg_str *msg;
3672     gdth_cmd_str *cmdp;
3673     unchar b, t;
3674
3675     ha   = HADATA(gdth_ctr_tab[hanum]);
3676     cmdp = ha->pccb;
3677     TRACE(("gdth_sync_event() serv %d status %d\n",
3678            service,ha->status));
3679
3680     if (service == SCREENSERVICE) {
3681         msg  = ha->pmsg;
3682         TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3683                msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3684         if (msg->msg_len > MSGLEN+1)
3685             msg->msg_len = MSGLEN+1;
3686         if (msg->msg_len)
3687             if (!(msg->msg_answer && msg->msg_ext)) {
3688                 msg->msg_text[msg->msg_len] = '\0';
3689                 printk("%s",msg->msg_text);
3690             }
3691
3692         if (msg->msg_ext && !msg->msg_answer) {
3693             while (gdth_test_busy(hanum))
3694                 gdth_delay(0);
3695             cmdp->Service       = SCREENSERVICE;
3696             cmdp->RequestBuffer = SCREEN_CMND;
3697             gdth_get_cmd_index(hanum);
3698             gdth_set_sema0(hanum);
3699             cmdp->OpCode        = GDT_READ;
3700             cmdp->BoardNode     = LOCALBOARD;
3701             cmdp->u.screen.reserved  = 0;
3702             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3703             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3704             ha->cmd_offs_dpmem = 0;
3705             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3706                 + sizeof(ulong64);
3707             ha->cmd_cnt = 0;
3708             gdth_copy_command(hanum);
3709             gdth_release_event(hanum);
3710             return 0;
3711         }
3712
3713         if (msg->msg_answer && msg->msg_alen) {
3714             /* default answers (getchar() not possible) */
3715             if (msg->msg_alen == 1) {
3716                 msg->msg_alen = 0;
3717                 msg->msg_len = 1;
3718                 msg->msg_text[0] = 0;
3719             } else {
3720                 msg->msg_alen -= 2;
3721                 msg->msg_len = 2;
3722                 msg->msg_text[0] = 1;
3723                 msg->msg_text[1] = 0;
3724             }
3725             msg->msg_ext    = 0;
3726             msg->msg_answer = 0;
3727             while (gdth_test_busy(hanum))
3728                 gdth_delay(0);
3729             cmdp->Service       = SCREENSERVICE;
3730             cmdp->RequestBuffer = SCREEN_CMND;
3731             gdth_get_cmd_index(hanum);
3732             gdth_set_sema0(hanum);
3733             cmdp->OpCode        = GDT_WRITE;
3734             cmdp->BoardNode     = LOCALBOARD;
3735             cmdp->u.screen.reserved  = 0;
3736             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3737             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3738             ha->cmd_offs_dpmem = 0;
3739             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3740                 + sizeof(ulong64);
3741             ha->cmd_cnt = 0;
3742             gdth_copy_command(hanum);
3743             gdth_release_event(hanum);
3744             return 0;
3745         }
3746         printk("\n");
3747
3748     } else {
3749         b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
3750         t = scp->device->id;
3751         if (scp->SCp.sent_command == -1 && b != ha->virt_bus) {
3752             ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3753         }
3754         /* cache or raw service */
3755         if (ha->status == S_BSY) {
3756             TRACE2(("Controller busy -> retry !\n"));
3757             if (scp->SCp.sent_command == GDT_MOUNT)
3758                 scp->SCp.sent_command = GDT_CLUST_INFO;
3759             /* retry */
3760             return 2;
3761         }
3762         if (scp->SCp.Status == GDTH_MAP_SG)
3763             pci_unmap_sg(ha->pdev,scp->request_buffer,
3764                          scp->use_sg,scp->SCp.Message);
3765         else if (scp->SCp.Status == GDTH_MAP_SINGLE)
3766             pci_unmap_page(ha->pdev,scp->SCp.dma_handle,
3767                            scp->request_bufflen,scp->SCp.Message);
3768         if (scp->SCp.buffer) {
3769             dma_addr_t addr;
3770             addr = (dma_addr_t)*(ulong32 *)&scp->SCp.buffer;
3771             if (scp->host_scribble)
3772                 addr += (dma_addr_t)
3773                     ((ulong64)(*(ulong32 *)&scp->host_scribble) << 32);
3774             pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE);
3775         }
3776
3777         if (ha->status == S_OK) {
3778             scp->SCp.Status = S_OK;
3779             scp->SCp.Message = ha->info;
3780             if (scp->SCp.sent_command != -1) {
3781                 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3782                         scp->SCp.sent_command));
3783                 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3784                 if (scp->SCp.sent_command == GDT_CLUST_INFO) {
3785                     ha->hdr[t].cluster_type = (unchar)ha->info;
3786                     if (!(ha->hdr[t].cluster_type &
3787                         CLUSTER_MOUNTED)) {
3788                         /* NOT MOUNTED -> MOUNT */
3789                         scp->SCp.sent_command = GDT_MOUNT;
3790                         if (ha->hdr[t].cluster_type &
3791                             CLUSTER_RESERVED) {
3792                             /* cluster drive RESERVED (on the other node) */
3793                             scp->SCp.phase = -2;      /* reservation conflict */
3794                         }
3795                     } else {
3796                         scp->SCp.sent_command = -1;
3797                     }
3798                 } else {
3799                     if (scp->SCp.sent_command == GDT_MOUNT) {
3800                         ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3801                         ha->hdr[t].media_changed = TRUE;
3802                     } else if (scp->SCp.sent_command == GDT_UNMOUNT) {
3803                         ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3804                         ha->hdr[t].media_changed = TRUE;
3805                     }
3806                     scp->SCp.sent_command = -1;
3807                 }
3808                 /* retry */
3809                 scp->SCp.this_residual = HIGH_PRI;
3810                 return 2;
3811             } else {
3812                 /* RESERVE/RELEASE ? */
3813                 if (scp->cmnd[0] == RESERVE) {
3814                     ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3815                 } else if (scp->cmnd[0] == RELEASE) {
3816                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3817                 }
3818                 scp->result = DID_OK << 16;
3819                 scp->sense_buffer[0] = 0;
3820             }
3821         } else {
3822             scp->SCp.Status = ha->status;
3823             scp->SCp.Message = ha->info;
3824
3825             if (scp->SCp.sent_command != -1) {
3826                 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3827                         scp->SCp.sent_command, ha->status));
3828                 if (scp->SCp.sent_command == GDT_SCAN_START ||
3829                     scp->SCp.sent_command == GDT_SCAN_END) {
3830                     scp->SCp.sent_command = -1;
3831                     /* retry */
3832                     scp->SCp.this_residual = HIGH_PRI;
3833                     return 2;
3834                 }
3835                 memset((char*)scp->sense_buffer,0,16);
3836                 scp->sense_buffer[0] = 0x70;
3837                 scp->sense_buffer[2] = NOT_READY;
3838                 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3839             } else if (service == CACHESERVICE) {
3840                 if (ha->status == S_CACHE_UNKNOWN &&
3841                     (ha->hdr[t].cluster_type &
3842                      CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3843                     /* bus reset -> force GDT_CLUST_INFO */
3844                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3845                 }
3846                 memset((char*)scp->sense_buffer,0,16);
3847                 if (ha->status == (ushort)S_CACHE_RESERV) {
3848                     scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3849                 } else {
3850                     scp->sense_buffer[0] = 0x70;
3851                     scp->sense_buffer[2] = NOT_READY;
3852                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3853                 }
3854                 if (scp->done != gdth_scsi_done) {
3855                     ha->dvr.size = sizeof(ha->dvr.eu.sync);
3856                     ha->dvr.eu.sync.ionode  = hanum;
3857                     ha->dvr.eu.sync.service = service;
3858                     ha->dvr.eu.sync.status  = ha->status;
3859                     ha->dvr.eu.sync.info    = ha->info;
3860                     ha->dvr.eu.sync.hostdrive = t;
3861                     if (ha->status >= 0x8000)
3862                         gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3863                     else
3864                         gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3865                 }
3866             } else {
3867                 /* sense buffer filled from controller firmware (DMA) */
3868                 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3869                     scp->result = DID_BAD_TARGET << 16;
3870                 } else {
3871                     scp->result = (DID_OK << 16) | ha->info;
3872                 }
3873             }
3874         }
3875         if (!scp->SCp.have_data_in)
3876             scp->SCp.have_data_in++;
3877         else
3878             return 1;
3879     }
3880
3881     return 0;
3882 }
3883
3884 static char *async_cache_tab[] = {
3885 /* 0*/  "\011\000\002\002\002\004\002\006\004"
3886         "GDT HA %u, service %u, async. status %u/%lu unknown",
3887 /* 1*/  "\011\000\002\002\002\004\002\006\004"
3888         "GDT HA %u, service %u, async. status %u/%lu unknown",
3889 /* 2*/  "\005\000\002\006\004"
3890         "GDT HA %u, Host Drive %lu not ready",
3891 /* 3*/  "\005\000\002\006\004"
3892         "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",
3893 /* 4*/  "\005\000\002\006\004"
3894         "GDT HA %u, mirror update on Host Drive %lu failed",
3895 /* 5*/  "\005\000\002\006\004"
3896         "GDT HA %u, Mirror Drive %lu failed",
3897 /* 6*/  "\005\000\002\006\004"
3898         "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",
3899 /* 7*/  "\005\000\002\006\004"
3900         "GDT HA %u, Host Drive %lu write protected",
3901 /* 8*/  "\005\000\002\006\004"
3902         "GDT HA %u, media changed in Host Drive %lu",
3903 /* 9*/  "\005\000\002\006\004"
3904         "GDT HA %u, Host Drive %lu is offline",
3905 /*10*/  "\005\000\002\006\004"
3906         "GDT HA %u, media change of Mirror Drive %lu",
3907 /*11*/  "\005\000\002\006\004"
3908         "GDT HA %u, Mirror Drive %lu is write protected",
3909 /*12*/  "\005\000\002\006\004"
3910         "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3911 /*13*/  "\007\000\002\006\002\010\002"
3912         "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3913 /*14*/  "\005\000\002\006\002"
3914         "GDT HA %u, Array Drive %u: FAIL state entered",
3915 /*15*/  "\005\000\002\006\002"
3916         "GDT HA %u, Array Drive %u: error",
3917 /*16*/  "\007\000\002\006\002\010\002"
3918         "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3919 /*17*/  "\005\000\002\006\002"
3920         "GDT HA %u, Array Drive %u: parity build failed",
3921 /*18*/  "\005\000\002\006\002"
3922         "GDT HA %u, Array Drive %u: drive rebuild failed",
3923 /*19*/  "\005\000\002\010\002"
3924         "GDT HA %u, Test of Hot Fix %u failed",
3925 /*20*/  "\005\000\002\006\002"
3926         "GDT HA %u, Array Drive %u: drive build finished successfully",
3927 /*21*/  "\005\000\002\006\002"
3928         "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3929 /*22*/  "\007\000\002\006\002\010\002"
3930         "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3931 /*23*/  "\005\000\002\006\002"
3932         "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3933 /*24*/  "\005\000\002\010\002"
3934         "GDT HA %u, mirror update on Cache Drive %u completed",
3935 /*25*/  "\005\000\002\010\002"
3936         "GDT HA %u, mirror update on Cache Drive %lu failed",
3937 /*26*/  "\005\000\002\006\002"
3938         "GDT HA %u, Array Drive %u: drive rebuild started",
3939 /*27*/  "\005\000\002\012\001"
3940         "GDT HA %u, Fault bus %u: SHELF OK detected",
3941 /*28*/  "\005\000\002\012\001"
3942         "GDT HA %u, Fault bus %u: SHELF not OK detected",
3943 /*29*/  "\007\000\002\012\001\013\001"
3944         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3945 /*30*/  "\007\000\002\012\001\013\001"
3946         "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3947 /*31*/  "\007\000\002\012\001\013\001"
3948         "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3949 /*32*/  "\007\000\002\012\001\013\001"
3950         "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3951 /*33*/  "\007\000\002\012\001\013\001"
3952         "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3953 /*34*/  "\011\000\002\012\001\013\001\006\004"
3954         "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3955 /*35*/  "\007\000\002\012\001\013\001"
3956         "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3957 /*36*/  "\007\000\002\012\001\013\001"
3958         "GDT HA %u, Fault bus %u, ID %u: disk not available",
3959 /*37*/  "\007\000\002\012\001\006\004"
3960         "GDT HA %u, Fault bus %u: swap detected (%lu)",
3961 /*38*/  "\007\000\002\012\001\013\001"
3962         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3963 /*39*/  "\007\000\002\012\001\013\001"
3964         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3965 /*40*/  "\007\000\002\012\001\013\001"
3966         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3967 /*41*/  "\007\000\002\012\001\013\001"
3968         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3969 /*42*/  "\005\000\002\006\002"
3970         "GDT HA %u, Array Drive %u: drive build started",
3971 /*43*/  "\003\000\002"
3972         "GDT HA %u, DRAM parity error detected",
3973 /*44*/  "\005\000\002\006\002"
3974         "GDT HA %u, Mirror Drive %u: update started",
3975 /*45*/  "\007\000\002\006\002\010\002"
3976         "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3977 /*46*/  "\005\000\002\006\002"
3978         "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3979 /*47*/  "\005\000\002\006\002"
3980         "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3981 /*48*/  "\005\000\002\006\002"
3982         "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3983 /*49*/  "\005\000\002\006\002"
3984         "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3985 /*50*/  "\007\000\002\012\001\013\001"
3986         "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3987 /*51*/  "\005\000\002\006\002"
3988         "GDT HA %u, Array Drive %u: expand started",
3989 /*52*/  "\005\000\002\006\002"
3990         "GDT HA %u, Array Drive %u: expand finished successfully",
3991 /*53*/  "\005\000\002\006\002"
3992         "GDT HA %u, Array Drive %u: expand failed",
3993 /*54*/  "\003\000\002"
3994         "GDT HA %u, CPU temperature critical",
3995 /*55*/  "\003\000\002"
3996         "GDT HA %u, CPU temperature OK",
3997 /*56*/  "\005\000\002\006\004"
3998         "GDT HA %u, Host drive %lu created",
3999 /*57*/  "\005\000\002\006\002"
4000         "GDT HA %u, Array Drive %u: expand restarted",
4001 /*58*/  "\005\000\002\006\002"
4002         "GDT HA %u, Array Drive %u: expand stopped",
4003 /*59*/  "\005\000\002\010\002"
4004         "GDT HA %u, Mirror Drive %u: drive build quited",
4005 /*60*/  "\005\000\002\006\002"
4006         "GDT HA %u, Array Drive %u: parity build quited",
4007 /*61*/  "\005\000\002\006\002"
4008         "GDT HA %u, Array Drive %u: drive rebuild quited",
4009 /*62*/  "\005\000\002\006\002"
4010         "GDT HA %u, Array Drive %u: parity verify started",
4011 /*63*/  "\005\000\002\006\002"
4012         "GDT HA %u, Array Drive %u: parity verify done",
4013 /*64*/  "\005\000\002\006\002"
4014         "GDT HA %u, Array Drive %u: parity verify failed",
4015 /*65*/  "\005\000\002\006\002"
4016         "GDT HA %u, Array Drive %u: parity error detected",
4017 /*66*/  "\005\000\002\006\002"
4018         "GDT HA %u, Array Drive %u: parity verify quited",
4019 /*67*/  "\005\000\002\006\002"
4020         "GDT HA %u, Host Drive %u reserved",
4021 /*68*/  "\005\000\002\006\002"
4022         "GDT HA %u, Host Drive %u mounted and released",
4023 /*69*/  "\005\000\002\006\002"
4024         "GDT HA %u, Host Drive %u released",
4025 /*70*/  "\003\000\002"
4026         "GDT HA %u, DRAM error detected and corrected with ECC",
4027 /*71*/  "\003\000\002"
4028         "GDT HA %u, Uncorrectable DRAM error detected with ECC",
4029 /*72*/  "\011\000\002\012\001\013\001\014\001"
4030         "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
4031 /*73*/  "\005\000\002\006\002"
4032         "GDT HA %u, Host drive %u resetted locally",
4033 /*74*/  "\005\000\002\006\002"
4034         "GDT HA %u, Host drive %u resetted remotely",
4035 /*75*/  "\003\000\002"
4036         "GDT HA %u, async. status 75 unknown",
4037 };
4038
4039
4040 static int gdth_async_event(int hanum)
4041 {
4042     gdth_ha_str *ha;
4043     gdth_cmd_str *cmdp;
4044     int cmd_index;
4045
4046     ha  = HADATA(gdth_ctr_tab[hanum]);
4047     cmdp= ha->pccb;
4048     TRACE2(("gdth_async_event() ha %d serv %d\n",
4049             hanum,ha->service));
4050
4051     if (ha->service == SCREENSERVICE) {
4052         if (ha->status == MSG_REQUEST) {
4053             while (gdth_test_busy(hanum))
4054                 gdth_delay(0);
4055             cmdp->Service       = SCREENSERVICE;
4056             cmdp->RequestBuffer = SCREEN_CMND;
4057             cmd_index = gdth_get_cmd_index(hanum);
4058             gdth_set_sema0(hanum);
4059             cmdp->OpCode        = GDT_READ;
4060             cmdp->BoardNode     = LOCALBOARD;
4061             cmdp->u.screen.reserved  = 0;
4062             cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
4063             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
4064             ha->cmd_offs_dpmem = 0;
4065             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
4066                 + sizeof(ulong64);
4067             ha->cmd_cnt = 0;
4068             gdth_copy_command(hanum);
4069             if (ha->type == GDT_EISA)
4070                 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
4071             else if (ha->type == GDT_ISA)
4072                 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
4073             else
4074                 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
4075                        (ushort)((ha->brd_phys>>3)&0x1f));
4076             gdth_release_event(hanum);
4077         }
4078
4079     } else {
4080         if (ha->type == GDT_PCIMPR &&
4081             (ha->fw_vers & 0xff) >= 0x1a) {
4082             ha->dvr.size = 0;
4083             ha->dvr.eu.async.ionode = hanum;
4084             ha->dvr.eu.async.status  = ha->status;
4085             /* severity and event_string already set! */
4086         } else {
4087             ha->dvr.size = sizeof(ha->dvr.eu.async);
4088             ha->dvr.eu.async.ionode   = hanum;
4089             ha->dvr.eu.async.service = ha->service;
4090             ha->dvr.eu.async.status  = ha->status;
4091             ha->dvr.eu.async.info    = ha->info;
4092             *(ulong32 *)ha->dvr.eu.async.scsi_coord  = ha->info2;
4093         }
4094         gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
4095         gdth_log_event( &ha->dvr, NULL );
4096
4097         /* new host drive from expand? */
4098         if (ha->service == CACHESERVICE && ha->status == 56) {
4099             TRACE2(("gdth_async_event(): new host drive %d created\n",
4100                     (ushort)ha->info));
4101             /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
4102         }
4103     }
4104     return 1;
4105 }
4106
4107 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
4108 {
4109     gdth_stackframe stack;
4110     char *f = NULL;
4111     int i,j;
4112
4113     TRACE2(("gdth_log_event()\n"));
4114     if (dvr->size == 0) {
4115         if (buffer == NULL) {
4116             printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
4117         } else {
4118             sprintf(buffer,"Adapter %d: %s\n",
4119                 dvr->eu.async.ionode,dvr->event_string);
4120         }
4121     } else if (dvr->eu.async.service == CACHESERVICE &&
4122         INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
4123         TRACE2(("GDT: Async. event cache service, event no.: %d\n",
4124                 dvr->eu.async.status));
4125
4126         f = async_cache_tab[dvr->eu.async.status];
4127
4128         /* i: parameter to push, j: stack element to fill */
4129         for (j=0,i=1; i < f[0]; i+=2) {
4130             switch (f[i+1]) {
4131               case 4:
4132                 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
4133                 break;
4134               case 2:
4135                 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
4136                 break;
4137               case 1:
4138                 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
4139                 break;
4140               default:
4141                 break;
4142             }
4143         }
4144
4145         if (buffer == NULL) {
4146             printk(&f[(int)f[0]],stack);
4147             printk("\n");
4148         } else {
4149             sprintf(buffer,&f[(int)f[0]],stack);
4150         }
4151
4152     } else {
4153         if (buffer == NULL) {
4154             printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
4155                    dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4156         } else {
4157             sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
4158                     dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4159         }
4160     }
4161 }
4162
4163 #ifdef GDTH_STATISTICS
4164 static void gdth_timeout(ulong data)
4165 {
4166     ulong32 i;
4167     Scsi_Cmnd *nscp;
4168     gdth_ha_str *ha;
4169     ulong flags;
4170     int hanum = 0;
4171
4172     ha = HADATA(gdth_ctr_tab[hanum]);
4173     spin_lock_irqsave(&ha->smp_lock, flags);
4174
4175     for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
4176         if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
4177             ++act_stats;
4178
4179     for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
4180         ++act_rq;
4181
4182     TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
4183             act_ints, act_ios, act_stats, act_rq));
4184     act_ints = act_ios = 0;
4185
4186     gdth_timer.expires = jiffies + 30 * HZ;
4187     add_timer(&gdth_timer);
4188     spin_unlock_irqrestore(&ha->smp_lock, flags);
4189 }
4190 #endif
4191
4192 static void __init internal_setup(char *str,int *ints)
4193 {
4194     int i, argc;
4195     char *cur_str, *argv;
4196
4197     TRACE2(("internal_setup() str %s ints[0] %d\n",
4198             str ? str:"NULL", ints ? ints[0]:0));
4199
4200     /* read irq[] from ints[] */
4201     if (ints) {
4202         argc = ints[0];
4203         if (argc > 0) {
4204             if (argc > MAXHA)
4205                 argc = MAXHA;
4206             for (i = 0; i < argc; ++i)
4207                 irq[i] = ints[i+1];
4208         }
4209     }
4210
4211     /* analyse string */
4212     argv = str;
4213     while (argv && (cur_str = strchr(argv, ':'))) {
4214         int val = 0, c = *++cur_str;
4215
4216         if (c == 'n' || c == 'N')
4217             val = 0;
4218         else if (c == 'y' || c == 'Y')
4219             val = 1;
4220         else
4221             val = (int)simple_strtoul(cur_str, NULL, 0);
4222
4223         if (!strncmp(argv, "disable:", 8))
4224             disable = val;
4225         else if (!strncmp(argv, "reserve_mode:", 13))
4226             reserve_mode = val;
4227         else if (!strncmp(argv, "reverse_scan:", 13))
4228             reverse_scan = val;
4229         else if (!strncmp(argv, "hdr_channel:", 12))
4230             hdr_channel = val;
4231         else if (!strncmp(argv, "max_ids:", 8))
4232             max_ids = val;
4233         else if (!strncmp(argv, "rescan:", 7))
4234             rescan = val;
4235         else if (!strncmp(argv, "virt_ctr:", 9))
4236             virt_ctr = val;
4237         else if (!strncmp(argv, "shared_access:", 14))
4238             shared_access = val;
4239         else if (!strncmp(argv, "probe_eisa_isa:", 15))
4240             probe_eisa_isa = val;
4241         else if (!strncmp(argv, "reserve_list:", 13)) {
4242             reserve_list[0] = val;
4243             for (i = 1; i < MAX_RES_ARGS; i++) {
4244                 cur_str = strchr(cur_str, ',');
4245                 if (!cur_str)
4246                     break;
4247                 if (!isdigit((int)*++cur_str)) {
4248                     --cur_str;
4249                     break;
4250                 }
4251                 reserve_list[i] =
4252                     (int)simple_strtoul(cur_str, NULL, 0);
4253             }
4254             if (!cur_str)
4255                 break;
4256             argv = ++cur_str;
4257             continue;
4258         }
4259
4260         if ((argv = strchr(argv, ',')))
4261             ++argv;
4262     }
4263 }
4264
4265 int __init option_setup(char *str)
4266 {
4267     int ints[MAXHA];
4268     char *cur = str;
4269     int i = 1;
4270
4271     TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
4272
4273     while (cur && isdigit(*cur) && i <= MAXHA) {
4274         ints[i++] = simple_strtoul(cur, NULL, 0);
4275         if ((cur = strchr(cur, ',')) != NULL) cur++;
4276     }
4277
4278     ints[0] = i - 1;
4279     internal_setup(cur, ints);
4280     return 1;
4281 }
4282
4283 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4284 static int __init gdth_detect(struct scsi_host_template *shtp)
4285 #else
4286 static int __init gdth_detect(Scsi_Host_Template *shtp)
4287 #endif
4288 {
4289     struct Scsi_Host *shp;
4290     gdth_pci_str pcistr[MAXHA];
4291     gdth_ha_str *ha;
4292     ulong32 isa_bios;
4293     ushort eisa_slot;
4294     int i,hanum,cnt,ctr,err;
4295     unchar b;
4296
4297
4298 #ifdef DEBUG_GDTH
4299     printk("GDT: This driver contains debugging information !! Trace level = %d\n",
4300         DebugState);
4301     printk("     Destination of debugging information: ");
4302 #ifdef __SERIAL__
4303 #ifdef __COM2__
4304     printk("Serial port COM2\n");
4305 #else
4306     printk("Serial port COM1\n");
4307 #endif
4308 #else
4309     printk("Console\n");
4310 #endif
4311     gdth_delay(3000);
4312 #endif
4313
4314     TRACE(("gdth_detect()\n"));
4315
4316     if (disable) {
4317         printk("GDT-HA: Controller driver disabled from command line !\n");
4318         return 0;
4319     }
4320
4321     printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",GDTH_VERSION_STR);
4322     /* initializations */
4323     gdth_polling = TRUE; b = 0;
4324     gdth_clear_events();
4325
4326     /* As default we do not probe for EISA or ISA controllers */
4327     if (probe_eisa_isa) {
4328         /* scanning for controllers, at first: ISA controller */
4329         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
4330             dma_addr_t scratch_dma_handle;
4331             scratch_dma_handle = 0;
4332
4333             if (gdth_ctr_count >= MAXHA)
4334                 break;
4335             if (gdth_search_isa(isa_bios)) {        /* controller found */
4336                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4337                 if (shp == NULL)
4338                     continue;
4339
4340                 ha = HADATA(shp);
4341                 if (!gdth_init_isa(isa_bios,ha)) {
4342                     scsi_unregister(shp);
4343                     continue;
4344                 }
4345 #ifdef __ia64__
4346                 break;
4347 #else
4348                 /* controller found and initialized */
4349                 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4350                        isa_bios,ha->irq,ha->drq);
4351
4352                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4353                     printk("GDT-ISA: Unable to allocate IRQ\n");
4354                     scsi_unregister(shp);
4355                     continue;
4356                 }
4357                 if (request_dma(ha->drq,"gdth")) {
4358                     printk("GDT-ISA: Unable to allocate DMA channel\n");
4359                     free_irq(ha->irq,ha);
4360                     scsi_unregister(shp);
4361                     continue;
4362                 }
4363                 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4364                 enable_dma(ha->drq);
4365                 shp->unchecked_isa_dma = 1;
4366                 shp->irq = ha->irq;
4367                 shp->dma_channel = ha->drq;
4368                 hanum = gdth_ctr_count;
4369                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4370                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4371
4372                 NUMDATA(shp)->hanum = (ushort)hanum;
4373                 NUMDATA(shp)->busnum= 0;
4374
4375                 ha->pccb = CMDDATA(shp);
4376                 ha->ccb_phys = 0L;
4377                 ha->pdev = NULL;
4378                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4379                                                     &scratch_dma_handle);
4380                 ha->scratch_phys = scratch_dma_handle;
4381                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4382                                                 &scratch_dma_handle);
4383                 ha->msg_phys = scratch_dma_handle;
4384 #ifdef INT_COAL
4385                 ha->coal_stat = (gdth_coal_status *)
4386                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4387                         MAXOFFSETS, &scratch_dma_handle);
4388                 ha->coal_stat_phys = scratch_dma_handle;
4389 #endif
4390
4391                 ha->scratch_busy = FALSE;
4392                 ha->req_first = NULL;
4393                 ha->tid_cnt = MAX_HDRIVES;
4394                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4395                     ha->tid_cnt = max_ids;
4396                 for (i=0; i<GDTH_MAXCMDS; ++i)
4397                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4398                 ha->scan_mode = rescan ? 0x10 : 0;
4399
4400                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4401                     !gdth_search_drives(hanum)) {
4402                     printk("GDT-ISA: Error during device scan\n");
4403                     --gdth_ctr_count;
4404                     --gdth_ctr_vcount;
4405
4406 #ifdef INT_COAL
4407                     if (ha->coal_stat)
4408                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4409                                             MAXOFFSETS, ha->coal_stat,
4410                                             ha->coal_stat_phys);
4411 #endif
4412                     if (ha->pscratch)
4413                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4414                                             ha->pscratch, ha->scratch_phys);
4415                     if (ha->pmsg)
4416                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4417                                             ha->pmsg, ha->msg_phys);
4418
4419                     free_irq(ha->irq,ha);
4420                     scsi_unregister(shp);
4421                     continue;
4422                 }
4423                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4424                     hdr_channel = ha->bus_cnt;
4425                 ha->virt_bus = hdr_channel;
4426
4427 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4428     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4429                 shp->highmem_io  = 0;
4430 #endif
4431                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4432                     shp->max_cmd_len = 16;
4433
4434                 shp->max_id      = ha->tid_cnt;
4435                 shp->max_lun     = MAXLUN;
4436                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4437                 if (virt_ctr) {
4438                     virt_ctr = 1;
4439                     /* register addit. SCSI channels as virtual controllers */
4440                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4441                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4442                         shp->unchecked_isa_dma = 1;
4443                         shp->irq = ha->irq;
4444                         shp->dma_channel = ha->drq;
4445                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4446                         NUMDATA(shp)->hanum = (ushort)hanum;
4447                         NUMDATA(shp)->busnum = b;
4448                     }
4449                 }
4450
4451                 spin_lock_init(&ha->smp_lock);
4452                 gdth_enable_int(hanum);
4453 #endif /* !__ia64__ */
4454             }
4455         }
4456
4457         /* scanning for EISA controllers */
4458         for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
4459             dma_addr_t scratch_dma_handle;
4460             scratch_dma_handle = 0;
4461
4462             if (gdth_ctr_count >= MAXHA)
4463                 break;
4464             if (gdth_search_eisa(eisa_slot)) {      /* controller found */
4465                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4466                 if (shp == NULL)
4467                     continue;
4468
4469                 ha = HADATA(shp);
4470                 if (!gdth_init_eisa(eisa_slot,ha)) {
4471                     scsi_unregister(shp);
4472                     continue;
4473                 }
4474                 /* controller found and initialized */
4475                 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4476                        eisa_slot>>12,ha->irq);
4477
4478                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4479                     printk("GDT-EISA: Unable to allocate IRQ\n");
4480                     scsi_unregister(shp);
4481                     continue;
4482                 }
4483                 shp->unchecked_isa_dma = 0;
4484                 shp->irq = ha->irq;
4485                 shp->dma_channel = 0xff;
4486                 hanum = gdth_ctr_count;
4487                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4488                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4489
4490                 NUMDATA(shp)->hanum = (ushort)hanum;
4491                 NUMDATA(shp)->busnum= 0;
4492                 TRACE2(("EISA detect Bus 0: hanum %d\n",
4493                         NUMDATA(shp)->hanum));
4494
4495                 ha->pccb = CMDDATA(shp);
4496                 ha->ccb_phys = 0L;
4497
4498                 ha->pdev = NULL;
4499                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4500                                                     &scratch_dma_handle);
4501                 ha->scratch_phys = scratch_dma_handle;
4502                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4503                                                 &scratch_dma_handle);
4504                 ha->msg_phys = scratch_dma_handle;
4505 #ifdef INT_COAL
4506                 ha->coal_stat = (gdth_coal_status *)
4507                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4508                                          MAXOFFSETS, &scratch_dma_handle);
4509                 ha->coal_stat_phys = scratch_dma_handle;
4510 #endif
4511                 ha->ccb_phys =
4512                     pci_map_single(ha->pdev,ha->pccb,
4513                                    sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4514                 ha->scratch_busy = FALSE;
4515                 ha->req_first = NULL;
4516                 ha->tid_cnt = MAX_HDRIVES;
4517                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4518                     ha->tid_cnt = max_ids;
4519                 for (i=0; i<GDTH_MAXCMDS; ++i)
4520                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4521                 ha->scan_mode = rescan ? 0x10 : 0;
4522
4523                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4524                     !gdth_search_drives(hanum)) {
4525                     printk("GDT-EISA: Error during device scan\n");
4526                     --gdth_ctr_count;
4527                     --gdth_ctr_vcount;
4528 #ifdef INT_COAL
4529                     if (ha->coal_stat)
4530                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4531                                             MAXOFFSETS, ha->coal_stat,
4532                                             ha->coal_stat_phys);
4533 #endif
4534                     if (ha->pscratch)
4535                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4536                                             ha->pscratch, ha->scratch_phys);
4537                     if (ha->pmsg)
4538                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4539                                             ha->pmsg, ha->msg_phys);
4540                     if (ha->ccb_phys)
4541                         pci_unmap_single(ha->pdev,ha->ccb_phys,
4542                                         sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4543                     free_irq(ha->irq,ha);
4544                     scsi_unregister(shp);
4545                     continue;
4546                 }
4547                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4548                     hdr_channel = ha->bus_cnt;
4549                 ha->virt_bus = hdr_channel;
4550
4551 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4552     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4553                 shp->highmem_io  = 0;
4554 #endif
4555                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4556                     shp->max_cmd_len = 16;
4557
4558                 shp->max_id      = ha->tid_cnt;
4559                 shp->max_lun     = MAXLUN;
4560                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4561                 if (virt_ctr) {
4562                     virt_ctr = 1;
4563                     /* register addit. SCSI channels as virtual controllers */
4564                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4565                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4566                         shp->unchecked_isa_dma = 0;
4567                         shp->irq = ha->irq;
4568                         shp->dma_channel = 0xff;
4569                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4570                         NUMDATA(shp)->hanum = (ushort)hanum;
4571                         NUMDATA(shp)->busnum = b;
4572                     }
4573                 }
4574
4575                 spin_lock_init(&ha->smp_lock);
4576                 gdth_enable_int(hanum);
4577             }
4578         }
4579     }
4580
4581     /* scanning for PCI controllers */
4582     cnt = gdth_search_pci(pcistr);
4583     printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
4584     gdth_sort_pci(pcistr,cnt);
4585     for (ctr = 0; ctr < cnt; ++ctr) {
4586         dma_addr_t scratch_dma_handle;
4587         scratch_dma_handle = 0;
4588
4589         if (gdth_ctr_count >= MAXHA)
4590             break;
4591         shp = scsi_register(shtp,sizeof(gdth_ext_str));
4592         if (shp == NULL)
4593             continue;
4594
4595         ha = HADATA(shp);
4596         if (!gdth_init_pci(&pcistr[ctr],ha)) {
4597             scsi_unregister(shp);
4598             continue;
4599         }
4600         /* controller found and initialized */
4601         printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4602                pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
4603
4604         if (request_irq(ha->irq, gdth_interrupt,
4605                         IRQF_DISABLED|IRQF_SHARED, "gdth", ha))
4606         {
4607             printk("GDT-PCI: Unable to allocate IRQ\n");
4608             scsi_unregister(shp);
4609             continue;
4610         }
4611         shp->unchecked_isa_dma = 0;
4612         shp->irq = ha->irq;
4613         shp->dma_channel = 0xff;
4614         hanum = gdth_ctr_count;
4615         gdth_ctr_tab[gdth_ctr_count++] = shp;
4616         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4617
4618         NUMDATA(shp)->hanum = (ushort)hanum;
4619         NUMDATA(shp)->busnum= 0;
4620
4621         ha->pccb = CMDDATA(shp);
4622         ha->ccb_phys = 0L;
4623
4624         ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4625                                             &scratch_dma_handle);
4626         ha->scratch_phys = scratch_dma_handle;
4627         ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4628                                         &scratch_dma_handle);
4629         ha->msg_phys = scratch_dma_handle;
4630 #ifdef INT_COAL
4631         ha->coal_stat = (gdth_coal_status *)
4632             pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4633                                  MAXOFFSETS, &scratch_dma_handle);
4634         ha->coal_stat_phys = scratch_dma_handle;
4635 #endif
4636         ha->scratch_busy = FALSE;
4637         ha->req_first = NULL;
4638         ha->tid_cnt = pcistr[ctr].device_id >= 0x200 ? MAXID : MAX_HDRIVES;
4639         if (max_ids > 0 && max_ids < ha->tid_cnt)
4640             ha->tid_cnt = max_ids;
4641         for (i=0; i<GDTH_MAXCMDS; ++i)
4642             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4643         ha->scan_mode = rescan ? 0x10 : 0;
4644
4645         err = FALSE;
4646         if (ha->pscratch == NULL || ha->pmsg == NULL ||
4647             !gdth_search_drives(hanum)) {
4648             err = TRUE;
4649         } else {
4650             if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4651                 hdr_channel = ha->bus_cnt;
4652             ha->virt_bus = hdr_channel;
4653
4654
4655 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4656             scsi_set_pci_device(shp, pcistr[ctr].pdev);
4657 #endif
4658             if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
4659                 /* 64-bit DMA only supported from FW >= x.43 */
4660                 (!ha->dma64_support)) {
4661                 if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4662                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
4663                     err = TRUE;
4664                 }
4665             } else {
4666                 shp->max_cmd_len = 16;
4667                 if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
4668                     printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
4669                 } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4670                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
4671                     err = TRUE;
4672                 }
4673             }
4674         }
4675
4676         if (err) {
4677             printk("GDT-PCI %d: Error during device scan\n", hanum);
4678             --gdth_ctr_count;
4679             --gdth_ctr_vcount;
4680 #ifdef INT_COAL
4681             if (ha->coal_stat)
4682                 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4683                                     MAXOFFSETS, ha->coal_stat,
4684                                     ha->coal_stat_phys);
4685 #endif
4686             if (ha->pscratch)
4687                 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4688                                     ha->pscratch, ha->scratch_phys);
4689             if (ha->pmsg)
4690                 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4691                                     ha->pmsg, ha->msg_phys);
4692             free_irq(ha->irq,ha);
4693             scsi_unregister(shp);
4694             continue;
4695         }
4696
4697         shp->max_id      = ha->tid_cnt;
4698         shp->max_lun     = MAXLUN;
4699         shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4700         if (virt_ctr) {
4701             virt_ctr = 1;
4702             /* register addit. SCSI channels as virtual controllers */
4703             for (b = 1; b < ha->bus_cnt + 1; ++b) {
4704                 shp = scsi_register(shtp,sizeof(gdth_num_str));
4705                 shp->unchecked_isa_dma = 0;
4706                 shp->irq = ha->irq;
4707                 shp->dma_channel = 0xff;
4708                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4709                 NUMDATA(shp)->hanum = (ushort)hanum;
4710                 NUMDATA(shp)->busnum = b;
4711             }
4712         }
4713
4714         spin_lock_init(&ha->smp_lock);
4715         gdth_enable_int(hanum);
4716     }
4717
4718     TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
4719     if (gdth_ctr_count > 0) {
4720 #ifdef GDTH_STATISTICS
4721         TRACE2(("gdth_detect(): Initializing timer !\n"));
4722         init_timer(&gdth_timer);
4723         gdth_timer.expires = jiffies + HZ;
4724         gdth_timer.data = 0L;
4725         gdth_timer.function = gdth_timeout;
4726         add_timer(&gdth_timer);
4727 #endif
4728         major = register_chrdev(0,"gdth",&gdth_fops);
4729         notifier_disabled = 0;
4730         register_reboot_notifier(&gdth_notifier);
4731     }
4732     gdth_polling = FALSE;
4733     return gdth_ctr_vcount;
4734 }
4735
4736 static int gdth_release(struct Scsi_Host *shp)
4737 {
4738     int hanum;
4739     gdth_ha_str *ha;
4740
4741     TRACE2(("gdth_release()\n"));
4742     if (NUMDATA(shp)->busnum == 0) {
4743         hanum = NUMDATA(shp)->hanum;
4744         ha    = HADATA(gdth_ctr_tab[hanum]);
4745         if (ha->sdev) {
4746             scsi_free_host_dev(ha->sdev);
4747             ha->sdev = NULL;
4748         }
4749         gdth_flush(hanum);
4750
4751         if (shp->irq) {
4752             free_irq(shp->irq,ha);
4753         }
4754 #ifndef __ia64__
4755         if (shp->dma_channel != 0xff) {
4756             free_dma(shp->dma_channel);
4757         }
4758 #endif
4759 #ifdef INT_COAL
4760         if (ha->coal_stat)
4761             pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4762                                 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
4763 #endif
4764         if (ha->pscratch)
4765             pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4766                                 ha->pscratch, ha->scratch_phys);
4767         if (ha->pmsg)
4768             pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4769                                 ha->pmsg, ha->msg_phys);
4770         if (ha->ccb_phys)
4771             pci_unmap_single(ha->pdev,ha->ccb_phys,
4772                              sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4773         gdth_ctr_released++;
4774         TRACE2(("gdth_release(): HA %d of %d\n",
4775                 gdth_ctr_released, gdth_ctr_count));
4776
4777         if (gdth_ctr_released == gdth_ctr_count) {
4778 #ifdef GDTH_STATISTICS
4779             del_timer(&gdth_timer);
4780 #endif
4781             unregister_chrdev(major,"gdth");
4782             unregister_reboot_notifier(&gdth_notifier);
4783         }
4784     }
4785
4786     scsi_unregister(shp);
4787     return 0;
4788 }
4789
4790
4791 static const char *gdth_ctr_name(int hanum)
4792 {
4793     gdth_ha_str *ha;
4794
4795     TRACE2(("gdth_ctr_name()\n"));
4796
4797     ha    = HADATA(gdth_ctr_tab[hanum]);
4798
4799     if (ha->type == GDT_EISA) {
4800         switch (ha->stype) {
4801           case GDT3_ID:
4802             return("GDT3000/3020");
4803           case GDT3A_ID:
4804             return("GDT3000A/3020A/3050A");
4805           case GDT3B_ID:
4806             return("GDT3000B/3010A");
4807         }
4808     } else if (ha->type == GDT_ISA) {
4809         return("GDT2000/2020");
4810     } else if (ha->type == GDT_PCI) {
4811         switch (ha->stype) {
4812           case PCI_DEVICE_ID_VORTEX_GDT60x0:
4813             return("GDT6000/6020/6050");
4814           case PCI_DEVICE_ID_VORTEX_GDT6000B:
4815             return("GDT6000B/6010");
4816         }
4817     }
4818     /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
4819
4820     return("");
4821 }
4822
4823 static const char *gdth_info(struct Scsi_Host *shp)
4824 {
4825     int hanum;
4826     gdth_ha_str *ha;
4827
4828     TRACE2(("gdth_info()\n"));
4829     hanum = NUMDATA(shp)->hanum;
4830     ha    = HADATA(gdth_ctr_tab[hanum]);
4831
4832     return ((const char *)ha->binfo.type_string);
4833 }
4834
4835 static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
4836 {
4837     int i, hanum;
4838     gdth_ha_str *ha;
4839     ulong flags;
4840     Scsi_Cmnd *cmnd;
4841     unchar b;
4842
4843     TRACE2(("gdth_eh_bus_reset()\n"));
4844
4845     hanum = NUMDATA(scp->device->host)->hanum;
4846     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
4847     ha    = HADATA(gdth_ctr_tab[hanum]);
4848
4849     /* clear command tab */
4850     spin_lock_irqsave(&ha->smp_lock, flags);
4851     for (i = 0; i < GDTH_MAXCMDS; ++i) {
4852         cmnd = ha->cmd_tab[i].cmnd;
4853         if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
4854             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4855     }
4856     spin_unlock_irqrestore(&ha->smp_lock, flags);
4857
4858     if (b == ha->virt_bus) {
4859         /* host drives */
4860         for (i = 0; i < MAX_HDRIVES; ++i) {
4861             if (ha->hdr[i].present) {
4862                 spin_lock_irqsave(&ha->smp_lock, flags);
4863                 gdth_polling = TRUE;
4864                 while (gdth_test_busy(hanum))
4865                     gdth_delay(0);
4866                 if (gdth_internal_cmd(hanum, CACHESERVICE,
4867                                       GDT_CLUST_RESET, i, 0, 0))
4868                     ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
4869                 gdth_polling = FALSE;
4870                 spin_unlock_irqrestore(&ha->smp_lock, flags);
4871             }
4872         }
4873     } else {
4874         /* raw devices */
4875         spin_lock_irqsave(&ha->smp_lock, flags);
4876         for (i = 0; i < MAXID; ++i)
4877             ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
4878         gdth_polling = TRUE;
4879         while (gdth_test_busy(hanum))
4880             gdth_delay(0);
4881         gdth_internal_cmd(hanum, SCSIRAWSERVICE, GDT_RESET_BUS,
4882                           BUS_L2P(ha,b), 0, 0);
4883         gdth_polling = FALSE;
4884         spin_unlock_irqrestore(&ha->smp_lock, flags);
4885     }
4886     return SUCCESS;
4887 }
4888
4889 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4890 static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
4891 #else
4892 static int gdth_bios_param(Disk *disk,kdev_t dev,int *ip)
4893 #endif
4894 {
4895     unchar b, t;
4896     int hanum;
4897     gdth_ha_str *ha;
4898     struct scsi_device *sd;
4899     unsigned capacity;
4900
4901 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4902     sd = sdev;
4903     capacity = cap;
4904 #else
4905     sd = disk->device;
4906     capacity = disk->capacity;
4907 #endif
4908     hanum = NUMDATA(sd->host)->hanum;
4909     b = virt_ctr ? NUMDATA(sd->host)->busnum : sd->channel;
4910     t = sd->id;
4911     TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", hanum, b, t));
4912     ha = HADATA(gdth_ctr_tab[hanum]);
4913
4914     if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
4915         /* raw device or host drive without mapping information */
4916         TRACE2(("Evaluate mapping\n"));
4917         gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
4918     } else {
4919         ip[0] = ha->hdr[t].heads;
4920         ip[1] = ha->hdr[t].secs;
4921         ip[2] = capacity / ip[0] / ip[1];
4922     }
4923
4924     TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
4925             ip[0],ip[1],ip[2]));
4926     return 0;
4927 }
4928
4929
4930 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *))
4931 {
4932     int hanum;
4933     int priority;
4934
4935     TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4936
4937     scp->scsi_done = (void *)done;
4938     scp->SCp.have_data_in = 1;
4939     scp->SCp.phase = -1;
4940     scp->SCp.sent_command = -1;
4941     scp->SCp.Status = GDTH_MAP_NONE;
4942     scp->SCp.buffer = (struct scatterlist *)NULL;
4943
4944     hanum = NUMDATA(scp->device->host)->hanum;
4945 #ifdef GDTH_STATISTICS
4946     ++act_ios;
4947 #endif
4948
4949     priority = DEFAULT_PRI;
4950     if (scp->done == gdth_scsi_done)
4951         priority = scp->SCp.this_residual;
4952     else
4953         gdth_update_timeout(hanum, scp, scp->timeout_per_command * 6);
4954
4955     gdth_putq( hanum, scp, priority );
4956     gdth_next( hanum );
4957     return 0;
4958 }
4959
4960
4961 static int gdth_open(struct inode *inode, struct file *filep)
4962 {
4963     gdth_ha_str *ha;
4964     int i;
4965
4966     for (i = 0; i < gdth_ctr_count; i++) {
4967         ha = HADATA(gdth_ctr_tab[i]);
4968         if (!ha->sdev)
4969             ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]);
4970     }
4971
4972     TRACE(("gdth_open()\n"));
4973     return 0;
4974 }
4975
4976 static int gdth_close(struct inode *inode, struct file *filep)
4977 {
4978     TRACE(("gdth_close()\n"));
4979     return 0;
4980 }
4981
4982 static int ioc_event(void __user *arg)
4983 {
4984     gdth_ioctl_event evt;
4985     gdth_ha_str *ha;
4986     ulong flags;
4987
4988     if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) ||
4989         evt.ionode >= gdth_ctr_count)
4990         return -EFAULT;
4991     ha = HADATA(gdth_ctr_tab[evt.ionode]);
4992
4993     if (evt.erase == 0xff) {
4994         if (evt.event.event_source == ES_TEST)
4995             evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4996         else if (evt.event.event_source == ES_DRIVER)
4997             evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4998         else if (evt.event.event_source == ES_SYNC)
4999             evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
5000         else
5001             evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
5002         spin_lock_irqsave(&ha->smp_lock, flags);
5003         gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
5004                          &evt.event.event_data);
5005         spin_unlock_irqrestore(&ha->smp_lock, flags);
5006     } else if (evt.erase == 0xfe) {
5007         gdth_clear_events();
5008     } else if (evt.erase == 0) {
5009         evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
5010     } else {
5011         gdth_readapp_event(ha, evt.erase, &evt.event);
5012     }
5013     if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
5014         return -EFAULT;
5015     return 0;
5016 }
5017
5018 static int ioc_lockdrv(void __user *arg)
5019 {
5020     gdth_ioctl_lockdrv ldrv;
5021     unchar i, j;
5022     ulong flags;
5023     gdth_ha_str *ha;
5024
5025     if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) ||
5026         ldrv.ionode >= gdth_ctr_count)
5027         return -EFAULT;
5028     ha = HADATA(gdth_ctr_tab[ldrv.ionode]);
5029
5030     for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
5031         j = ldrv.drives[i];
5032         if (j >= MAX_HDRIVES || !ha->hdr[j].present)
5033             continue;
5034         if (ldrv.lock) {
5035             spin_lock_irqsave(&ha->smp_lock, flags);
5036             ha->hdr[j].lock = 1;
5037             spin_unlock_irqrestore(&ha->smp_lock, flags);
5038             gdth_wait_completion(ldrv.ionode, ha->bus_cnt, j);
5039             gdth_stop_timeout(ldrv.ionode, ha->bus_cnt, j);
5040         } else {
5041             spin_lock_irqsave(&ha->smp_lock, flags);
5042             ha->hdr[j].lock = 0;
5043             spin_unlock_irqrestore(&ha->smp_lock, flags);
5044             gdth_start_timeout(ldrv.ionode, ha->bus_cnt, j);
5045             gdth_next(ldrv.ionode);
5046         }
5047     }
5048     return 0;
5049 }
5050
5051 static int ioc_resetdrv(void __user *arg, char *cmnd)
5052 {
5053     gdth_ioctl_reset res;
5054     gdth_cmd_str cmd;
5055     int hanum;
5056     gdth_ha_str *ha;
5057     int rval;
5058
5059     if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
5060         res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
5061         return -EFAULT;
5062     hanum = res.ionode;
5063     ha = HADATA(gdth_ctr_tab[hanum]);
5064
5065     if (!ha->hdr[res.number].present)
5066         return 0;
5067     memset(&cmd, 0, sizeof(gdth_cmd_str));
5068     cmd.Service = CACHESERVICE;
5069     cmd.OpCode = GDT_CLUST_RESET;
5070     if (ha->cache_feat & GDT_64BIT)
5071         cmd.u.cache64.DeviceNo = res.number;
5072     else
5073         cmd.u.cache.DeviceNo = res.number;
5074
5075     rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
5076     if (rval < 0)
5077         return rval;
5078     res.status = rval;
5079
5080     if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
5081         return -EFAULT;
5082     return 0;
5083 }
5084
5085 static int ioc_general(void __user *arg, char *cmnd)
5086 {
5087     gdth_ioctl_general gen;
5088     char *buf = NULL;
5089     ulong64 paddr;
5090     int hanum;
5091     gdth_ha_str *ha;
5092     int rval;
5093
5094     if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
5095         gen.ionode >= gdth_ctr_count)
5096         return -EFAULT;
5097     hanum = gen.ionode;
5098     ha = HADATA(gdth_ctr_tab[hanum]);
5099     if (gen.data_len + gen.sense_len != 0) {
5100         if (!(buf = gdth_ioctl_alloc(hanum, gen.data_len + gen.sense_len,
5101                                      FALSE, &paddr)))
5102             return -EFAULT;
5103         if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
5104                            gen.data_len + gen.sense_len)) {
5105             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5106             return -EFAULT;
5107         }
5108
5109         if (gen.command.OpCode == GDT_IOCTL) {
5110             gen.command.u.ioctl.p_param = paddr;
5111         } else if (gen.command.Service == CACHESERVICE) {
5112             if (ha->cache_feat & GDT_64BIT) {
5113                 /* copy elements from 32-bit IOCTL structure */
5114                 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
5115                 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
5116                 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
5117                 /* addresses */
5118                 if (ha->cache_feat & SCATTER_GATHER) {
5119                     gen.command.u.cache64.DestAddr = (ulong64)-1;
5120                     gen.command.u.cache64.sg_canz = 1;
5121                     gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
5122                     gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
5123                     gen.command.u.cache64.sg_lst[1].sg_len = 0;
5124                 } else {
5125                     gen.command.u.cache64.DestAddr = paddr;
5126                     gen.command.u.cache64.sg_canz = 0;
5127                 }
5128             } else {
5129                 if (ha->cache_feat & SCATTER_GATHER) {
5130                     gen.command.u.cache.DestAddr = 0xffffffff;
5131                     gen.command.u.cache.sg_canz = 1;
5132                     gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
5133                     gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
5134                     gen.command.u.cache.sg_lst[1].sg_len = 0;
5135                 } else {
5136                     gen.command.u.cache.DestAddr = paddr;
5137                     gen.command.u.cache.sg_canz = 0;
5138                 }
5139             }
5140         } else if (gen.command.Service == SCSIRAWSERVICE) {
5141             if (ha->raw_feat & GDT_64BIT) {
5142                 /* copy elements from 32-bit IOCTL structure */
5143                 char cmd[16];
5144                 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
5145                 gen.command.u.raw64.bus = gen.command.u.raw.bus;
5146                 gen.command.u.raw64.lun = gen.command.u.raw.lun;
5147                 gen.command.u.raw64.target = gen.command.u.raw.target;
5148                 memcpy(cmd, gen.command.u.raw.cmd, 16);
5149                 memcpy(gen.command.u.raw64.cmd, cmd, 16);
5150                 gen.command.u.raw64.clen = gen.command.u.raw.clen;
5151                 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
5152                 gen.command.u.raw64.direction = gen.command.u.raw.direction;
5153                 /* addresses */
5154                 if (ha->raw_feat & SCATTER_GATHER) {
5155                     gen.command.u.raw64.sdata = (ulong64)-1;
5156                     gen.command.u.raw64.sg_ranz = 1;
5157                     gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
5158                     gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
5159                     gen.command.u.raw64.sg_lst[1].sg_len = 0;
5160                 } else {
5161                     gen.command.u.raw64.sdata = paddr;
5162                     gen.command.u.raw64.sg_ranz = 0;
5163                 }
5164                 gen.command.u.raw64.sense_data = paddr + gen.data_len;
5165             } else {
5166                 if (ha->raw_feat & SCATTER_GATHER) {
5167                     gen.command.u.raw.sdata = 0xffffffff;
5168                     gen.command.u.raw.sg_ranz = 1;
5169                     gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
5170                     gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
5171                     gen.command.u.raw.sg_lst[1].sg_len = 0;
5172                 } else {
5173                     gen.command.u.raw.sdata = paddr;
5174                     gen.command.u.raw.sg_ranz = 0;
5175                 }
5176                 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
5177             }
5178         } else {
5179             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5180             return -EFAULT;
5181         }
5182     }
5183
5184     rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
5185     if (rval < 0)
5186         return rval;
5187     gen.status = rval;
5188
5189     if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
5190                      gen.data_len + gen.sense_len)) {
5191         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5192         return -EFAULT;
5193     }
5194     if (copy_to_user(arg, &gen,
5195         sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
5196         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5197         return -EFAULT;
5198     }
5199     gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5200     return 0;
5201 }
5202
5203 static int ioc_hdrlist(void __user *arg, char *cmnd)
5204 {
5205     gdth_ioctl_rescan *rsc;
5206     gdth_cmd_str *cmd;
5207     gdth_ha_str *ha;
5208     unchar i;
5209     int hanum, rc = -ENOMEM;
5210     u32 cluster_type = 0;
5211
5212     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5213     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5214     if (!rsc || !cmd)
5215         goto free_fail;
5216
5217     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5218         rsc->ionode >= gdth_ctr_count) {
5219         rc = -EFAULT;
5220         goto free_fail;
5221     }
5222     hanum = rsc->ionode;
5223     ha = HADATA(gdth_ctr_tab[hanum]);
5224     memset(cmd, 0, sizeof(gdth_cmd_str));
5225
5226     for (i = 0; i < MAX_HDRIVES; ++i) {
5227         if (!ha->hdr[i].present) {
5228             rsc->hdr_list[i].bus = 0xff;
5229             continue;
5230         }
5231         rsc->hdr_list[i].bus = ha->virt_bus;
5232         rsc->hdr_list[i].target = i;
5233         rsc->hdr_list[i].lun = 0;
5234         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5235         if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
5236             cmd->Service = CACHESERVICE;
5237             cmd->OpCode = GDT_CLUST_INFO;
5238             if (ha->cache_feat & GDT_64BIT)
5239                 cmd->u.cache64.DeviceNo = i;
5240             else
5241                 cmd->u.cache.DeviceNo = i;
5242             if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
5243                 rsc->hdr_list[i].cluster_type = cluster_type;
5244         }
5245     }
5246
5247     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5248         rc = -EFAULT;
5249     else
5250         rc = 0;
5251
5252 free_fail:
5253     kfree(rsc);
5254     kfree(cmd);
5255     return rc;
5256 }
5257
5258 static int ioc_rescan(void __user *arg, char *cmnd)
5259 {
5260     gdth_ioctl_rescan *rsc;
5261     gdth_cmd_str *cmd;
5262     ushort i, status, hdr_cnt;
5263     ulong32 info;
5264     int hanum, cyls, hds, secs;
5265     int rc = -ENOMEM;
5266     ulong flags;
5267     gdth_ha_str *ha;
5268
5269     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5270     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5271     if (!cmd || !rsc)
5272         goto free_fail;
5273
5274     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5275         rsc->ionode >= gdth_ctr_count) {
5276         rc = -EFAULT;
5277         goto free_fail;
5278     }
5279     hanum = rsc->ionode;
5280     ha = HADATA(gdth_ctr_tab[hanum]);
5281     memset(cmd, 0, sizeof(gdth_cmd_str));
5282
5283     if (rsc->flag == 0) {
5284         /* old method: re-init. cache service */
5285         cmd->Service = CACHESERVICE;
5286         if (ha->cache_feat & GDT_64BIT) {
5287             cmd->OpCode = GDT_X_INIT_HOST;
5288             cmd->u.cache64.DeviceNo = LINUX_OS;
5289         } else {
5290             cmd->OpCode = GDT_INIT;
5291             cmd->u.cache.DeviceNo = LINUX_OS;
5292         }
5293
5294         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5295         i = 0;
5296         hdr_cnt = (status == S_OK ? (ushort)info : 0);
5297     } else {
5298         i = rsc->hdr_no;
5299         hdr_cnt = i + 1;
5300     }
5301
5302     for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
5303         cmd->Service = CACHESERVICE;
5304         cmd->OpCode = GDT_INFO;
5305         if (ha->cache_feat & GDT_64BIT)
5306             cmd->u.cache64.DeviceNo = i;
5307         else
5308             cmd->u.cache.DeviceNo = i;
5309
5310         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5311
5312         spin_lock_irqsave(&ha->smp_lock, flags);
5313         rsc->hdr_list[i].bus = ha->virt_bus;
5314         rsc->hdr_list[i].target = i;
5315         rsc->hdr_list[i].lun = 0;
5316         if (status != S_OK) {
5317             ha->hdr[i].present = FALSE;
5318         } else {
5319             ha->hdr[i].present = TRUE;
5320             ha->hdr[i].size = info;
5321             /* evaluate mapping */
5322             ha->hdr[i].size &= ~SECS32;
5323             gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
5324             ha->hdr[i].heads = hds;
5325             ha->hdr[i].secs = secs;
5326             /* round size */
5327             ha->hdr[i].size = cyls * hds * secs;
5328         }
5329         spin_unlock_irqrestore(&ha->smp_lock, flags);
5330         if (status != S_OK)
5331             continue;
5332
5333         /* extended info, if GDT_64BIT, for drives > 2 TB */
5334         /* but we need ha->info2, not yet stored in scp->SCp */
5335
5336         /* devtype, cluster info, R/W attribs */
5337         cmd->Service = CACHESERVICE;
5338         cmd->OpCode = GDT_DEVTYPE;
5339         if (ha->cache_feat & GDT_64BIT)
5340             cmd->u.cache64.DeviceNo = i;
5341         else
5342             cmd->u.cache.DeviceNo = i;
5343
5344         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5345
5346         spin_lock_irqsave(&ha->smp_lock, flags);
5347         ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
5348         spin_unlock_irqrestore(&ha->smp_lock, flags);
5349
5350         cmd->Service = CACHESERVICE;
5351         cmd->OpCode = GDT_CLUST_INFO;
5352         if (ha->cache_feat & GDT_64BIT)
5353             cmd->u.cache64.DeviceNo = i;
5354         else
5355             cmd->u.cache.DeviceNo = i;
5356
5357         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5358
5359         spin_lock_irqsave(&ha->smp_lock, flags);
5360         ha->hdr[i].cluster_type =
5361             ((status == S_OK && !shared_access) ? (ushort)info : 0);
5362         spin_unlock_irqrestore(&ha->smp_lock, flags);
5363         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5364
5365         cmd->Service = CACHESERVICE;
5366         cmd->OpCode = GDT_RW_ATTRIBS;
5367         if (ha->cache_feat & GDT_64BIT)
5368             cmd->u.cache64.DeviceNo = i;
5369         else
5370             cmd->u.cache.DeviceNo = i;
5371
5372         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5373
5374         spin_lock_irqsave(&ha->smp_lock, flags);
5375         ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
5376         spin_unlock_irqrestore(&ha->smp_lock, flags);
5377     }
5378
5379     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5380         rc = -EFAULT;
5381     else
5382         rc = 0;
5383
5384 free_fail:
5385     kfree(rsc);
5386     kfree(cmd);
5387     return rc;
5388 }
5389
5390 static int gdth_ioctl(struct inode *inode, struct file *filep,
5391                       unsigned int cmd, unsigned long arg)
5392 {
5393     gdth_ha_str *ha;
5394     Scsi_Cmnd *scp;
5395     ulong flags;
5396     char cmnd[MAX_COMMAND_SIZE];
5397     void __user *argp = (void __user *)arg;
5398
5399     memset(cmnd, 0xff, 12);
5400
5401     TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
5402
5403     switch (cmd) {
5404       case GDTIOCTL_CTRCNT:
5405       {
5406         int cnt = gdth_ctr_count;
5407         if (put_user(cnt, (int __user *)argp))
5408                 return -EFAULT;
5409         break;
5410       }
5411
5412       case GDTIOCTL_DRVERS:
5413       {
5414         int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
5415         if (put_user(ver, (int __user *)argp))
5416                 return -EFAULT;
5417         break;
5418       }
5419
5420       case GDTIOCTL_OSVERS:
5421       {
5422         gdth_ioctl_osvers osv;
5423
5424         osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
5425         osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
5426         osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
5427         if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
5428                 return -EFAULT;
5429         break;
5430       }
5431
5432       case GDTIOCTL_CTRTYPE:
5433       {
5434         gdth_ioctl_ctrtype ctrt;
5435
5436         if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
5437             ctrt.ionode >= gdth_ctr_count)
5438             return -EFAULT;
5439         ha = HADATA(gdth_ctr_tab[ctrt.ionode]);
5440         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
5441             ctrt.type = (unchar)((ha->stype>>20) - 0x10);
5442         } else {
5443             if (ha->type != GDT_PCIMPR) {
5444                 ctrt.type = (unchar)((ha->stype<<4) + 6);
5445             } else {
5446                 ctrt.type =
5447                     (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
5448                 if (ha->stype >= 0x300)
5449                     ctrt.ext_type = 0x6000 | ha->subdevice_id;
5450                 else
5451                     ctrt.ext_type = 0x6000 | ha->stype;
5452             }
5453             ctrt.device_id = ha->stype;
5454             ctrt.sub_device_id = ha->subdevice_id;
5455         }
5456         ctrt.info = ha->brd_phys;
5457         ctrt.oem_id = ha->oem_id;
5458         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
5459             return -EFAULT;
5460         break;
5461       }
5462
5463       case GDTIOCTL_GENERAL:
5464         return ioc_general(argp, cmnd);
5465
5466       case GDTIOCTL_EVENT:
5467         return ioc_event(argp);
5468
5469       case GDTIOCTL_LOCKDRV:
5470         return ioc_lockdrv(argp);
5471
5472       case GDTIOCTL_LOCKCHN:
5473       {
5474         gdth_ioctl_lockchn lchn;
5475         unchar i, j;
5476
5477         if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
5478             lchn.ionode >= gdth_ctr_count)
5479             return -EFAULT;
5480         ha = HADATA(gdth_ctr_tab[lchn.ionode]);
5481
5482         i = lchn.channel;
5483         if (i < ha->bus_cnt) {
5484             if (lchn.lock) {
5485                 spin_lock_irqsave(&ha->smp_lock, flags);
5486                 ha->raw[i].lock = 1;
5487                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5488                 for (j = 0; j < ha->tid_cnt; ++j) {
5489                     gdth_wait_completion(lchn.ionode, i, j);
5490                     gdth_stop_timeout(lchn.ionode, i, j);
5491                 }
5492             } else {
5493                 spin_lock_irqsave(&ha->smp_lock, flags);
5494                 ha->raw[i].lock = 0;
5495                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5496                 for (j = 0; j < ha->tid_cnt; ++j) {
5497                     gdth_start_timeout(lchn.ionode, i, j);
5498                     gdth_next(lchn.ionode);
5499                 }
5500             }
5501         }
5502         break;
5503       }
5504
5505       case GDTIOCTL_RESCAN:
5506         return ioc_rescan(argp, cmnd);
5507
5508       case GDTIOCTL_HDRLIST:
5509         return ioc_hdrlist(argp, cmnd);
5510
5511       case GDTIOCTL_RESET_BUS:
5512       {
5513         gdth_ioctl_reset res;
5514         int hanum, rval;
5515
5516         if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
5517             res.ionode >= gdth_ctr_count)
5518             return -EFAULT;
5519         hanum = res.ionode;
5520         ha = HADATA(gdth_ctr_tab[hanum]);
5521
5522 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5523         scp  = kmalloc(sizeof(*scp), GFP_KERNEL);
5524         if (!scp)
5525             return -ENOMEM;
5526         memset(scp, 0, sizeof(*scp));
5527         scp->device = ha->sdev;
5528         scp->cmd_len = 12;
5529         scp->use_sg = 0;
5530         scp->device->channel = virt_ctr ? 0 : res.number;
5531         rval = gdth_eh_bus_reset(scp);
5532         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5533         kfree(scp);
5534 #else
5535         scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5536         if (!scp)
5537             return -ENOMEM;
5538         scp->cmd_len = 12;
5539         scp->use_sg = 0;
5540         scp->channel = virt_ctr ? 0 : res.number;
5541         rval = gdth_eh_bus_reset(scp);
5542         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5543         scsi_release_command(scp);
5544 #endif
5545         if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
5546             return -EFAULT;
5547         break;
5548       }
5549
5550       case GDTIOCTL_RESET_DRV:
5551         return ioc_resetdrv(argp, cmnd);
5552
5553       default:
5554         break;
5555     }
5556     return 0;
5557 }
5558
5559
5560 /* flush routine */
5561 static void gdth_flush(int hanum)
5562 {
5563     int             i;
5564     gdth_ha_str     *ha;
5565     gdth_cmd_str    gdtcmd;
5566     char            cmnd[MAX_COMMAND_SIZE];
5567     memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5568
5569     TRACE2(("gdth_flush() hanum %d\n",hanum));
5570     ha = HADATA(gdth_ctr_tab[hanum]);
5571
5572     for (i = 0; i < MAX_HDRIVES; ++i) {
5573         if (ha->hdr[i].present) {
5574             gdtcmd.BoardNode = LOCALBOARD;
5575             gdtcmd.Service = CACHESERVICE;
5576             gdtcmd.OpCode = GDT_FLUSH;
5577             if (ha->cache_feat & GDT_64BIT) {
5578                 gdtcmd.u.cache64.DeviceNo = i;
5579                 gdtcmd.u.cache64.BlockNo = 1;
5580                 gdtcmd.u.cache64.sg_canz = 0;
5581             } else {
5582                 gdtcmd.u.cache.DeviceNo = i;
5583                 gdtcmd.u.cache.BlockNo = 1;
5584                 gdtcmd.u.cache.sg_canz = 0;
5585             }
5586             TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
5587
5588             gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 30, NULL);
5589         }
5590     }
5591 }
5592
5593 /* shutdown routine */
5594 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
5595 {
5596     int             hanum;
5597 #ifndef __alpha__
5598     gdth_cmd_str    gdtcmd;
5599     char            cmnd[MAX_COMMAND_SIZE];
5600 #endif
5601
5602     if (notifier_disabled)
5603         return NOTIFY_OK;
5604
5605     TRACE2(("gdth_halt() event %d\n",(int)event));
5606     if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5607         return NOTIFY_DONE;
5608
5609     notifier_disabled = 1;
5610     printk("GDT-HA: Flushing all host drives .. ");
5611     for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
5612         gdth_flush(hanum);
5613
5614 #ifndef __alpha__
5615         /* controller reset */
5616         memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5617         gdtcmd.BoardNode = LOCALBOARD;
5618         gdtcmd.Service = CACHESERVICE;
5619         gdtcmd.OpCode = GDT_RESET;
5620         TRACE2(("gdth_halt(): reset controller %d\n", hanum));
5621         gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 10, NULL);
5622 #endif
5623     }
5624     printk("Done.\n");
5625
5626 #ifdef GDTH_STATISTICS
5627     del_timer(&gdth_timer);
5628 #endif
5629     return NOTIFY_OK;
5630 }
5631
5632 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5633 /* configure lun */
5634 static int gdth_slave_configure(struct scsi_device *sdev)
5635 {
5636     scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
5637     sdev->skip_ms_page_3f = 1;
5638     sdev->skip_ms_page_8 = 1;
5639     return 0;
5640 }
5641 #endif
5642
5643 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5644 static struct scsi_host_template driver_template = {
5645 #else
5646 static Scsi_Host_Template driver_template = {
5647 #endif
5648         .proc_name              = "gdth",
5649         .proc_info              = gdth_proc_info,
5650         .name                   = "GDT SCSI Disk Array Controller",
5651         .detect                 = gdth_detect,
5652         .release                = gdth_release,
5653         .info                   = gdth_info,
5654         .queuecommand           = gdth_queuecommand,
5655         .eh_bus_reset_handler   = gdth_eh_bus_reset,
5656         .bios_param             = gdth_bios_param,
5657         .can_queue              = GDTH_MAXCMDS,
5658 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5659         .slave_configure        = gdth_slave_configure,
5660 #endif
5661         .this_id                = -1,
5662         .sg_tablesize           = GDTH_MAXSG,
5663         .cmd_per_lun            = GDTH_MAXC_P_L,
5664         .unchecked_isa_dma      = 1,
5665         .use_clustering         = ENABLE_CLUSTERING,
5666 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
5667         .use_new_eh_code        = 1,
5668 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
5669         .highmem_io             = 1,
5670 #endif
5671 #endif
5672 };
5673
5674 #include "scsi_module.c"
5675 #ifndef MODULE
5676 __setup("gdth=", option_setup);
5677 #endif