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[] __maybe_unused = {
 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].irq = pdev->irq;
 906         base0 = pci_resource_flags(pdev, 0);
 907         base1 = pci_resource_flags(pdev, 1);
 908         base2 = pci_resource_flags(pdev, 2);
 909         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 910             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 911             if (!(base0 & IORESOURCE_MEM))
 912                 continue;
 913             pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
 914         } else {                                  /* GDT6110, GDT6120, .. */
 915             if (!(base0 & IORESOURCE_MEM) ||
 916                 !(base2 & IORESOURCE_MEM) ||
 917                 !(base1 & IORESOURCE_IO))
 918                 continue;
 919             pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
 920             pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
 921             pcistr[*cnt].io    = pci_resource_start(pdev, 1);
 922         }
 923         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 924                 pcistr[*cnt].pdev->bus->number,
 925                 PCI_SLOT(pcistr[*cnt].pdev->devfn),
 926                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 927         (*cnt)++;
 928     }
 929 }
 930
 931
 932 static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
 933 {
 934     gdth_pci_str temp;
 935     int i, changed;
 936
 937     TRACE(("gdth_sort_pci() cnt %d\n",cnt));
 938     if (cnt == 0)
 939         return;
 940
 941     do {
 942         changed = FALSE;
 943         for (i = 0; i < cnt-1; ++i) {
 944             if (!reverse_scan) {
 945                 if ((pcistr[i].pdev->bus->number > pcistr[i+1].pdev->bus->number) ||
 946                     (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
 947                      PCI_SLOT(pcistr[i].pdev->devfn) >
 948                      PCI_SLOT(pcistr[i+1].pdev->devfn))) {
 949                     temp = pcistr[i];
 950                     pcistr[i] = pcistr[i+1];
 951                     pcistr[i+1] = temp;
 952                     changed = TRUE;
 953                 }
 954             } else {
 955                 if ((pcistr[i].pdev->bus->number < pcistr[i+1].pdev->bus->number) ||
 956                     (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
 957                      PCI_SLOT(pcistr[i].pdev->devfn) <
 958                      PCI_SLOT(pcistr[i+1].pdev->devfn))) {
 959                     temp = pcistr[i];
 960                     pcistr[i] = pcistr[i+1];
 961                     pcistr[i+1] = temp;
 962                     changed = TRUE;
 963                 }
 964             }
 965         }
 966     } while (changed);
 967 }
 968
 969
 970 static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
 971 {
 972     ulong32 retries,id;
 973     unchar prot_ver,eisacf,i,irq_found;
 974
 975     TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
 976
 977     /* disable board interrupts, deinitialize services */
 978     outb(0xff,eisa_adr+EDOORREG);
 979     outb(0x00,eisa_adr+EDENABREG);
 980     outb(0x00,eisa_adr+EINTENABREG);
 981
 982     outb(0xff,eisa_adr+LDOORREG);
 983     retries = INIT_RETRIES;
 984     gdth_delay(20);
 985     while (inb(eisa_adr+EDOORREG) != 0xff) {
 986         if (--retries == 0) {
 987             printk("GDT-EISA: Initialization error (DEINIT failed)\n");
 988             return 0;
 989         }
 990         gdth_delay(1);
 991         TRACE2(("wait for DEINIT: retries=%d\n",retries));
 992     }
 993     prot_ver = inb(eisa_adr+MAILBOXREG);
 994     outb(0xff,eisa_adr+EDOORREG);
 995     if (prot_ver != PROTOCOL_VERSION) {
 996         printk("GDT-EISA: Illegal protocol version\n");
 997         return 0;
 998     }
 999     ha->bmic = eisa_adr;
1000     ha->brd_phys = (ulong32)eisa_adr >> 12;
1001
1002     outl(0,eisa_adr+MAILBOXREG);
1003     outl(0,eisa_adr+MAILBOXREG+4);
1004     outl(0,eisa_adr+MAILBOXREG+8);
1005     outl(0,eisa_adr+MAILBOXREG+12);
1006
1007     /* detect IRQ */
1008     if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
1009         ha->oem_id = OEM_ID_ICP;
1010         ha->type = GDT_EISA;
1011         ha->stype = id;
1012         outl(1,eisa_adr+MAILBOXREG+8);
1013         outb(0xfe,eisa_adr+LDOORREG);
1014         retries = INIT_RETRIES;
1015         gdth_delay(20);
1016         while (inb(eisa_adr+EDOORREG) != 0xfe) {
1017             if (--retries == 0) {
1018                 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
1019                 return 0;
1020             }
1021             gdth_delay(1);
1022         }
1023         ha->irq = inb(eisa_adr+MAILBOXREG);
1024         outb(0xff,eisa_adr+EDOORREG);
1025         TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
1026         /* check the result */
1027         if (ha->irq == 0) {
1028                 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
1029                 for (i = 0, irq_found = FALSE;
1030                      i < MAXHA && irq[i] != 0xff; ++i) {
1031                 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
1032                     irq_found = TRUE;
1033                     break;
1034                 }
1035                 }
1036             if (irq_found) {
1037                 ha->irq = irq[i];
1038                 irq[i] = 0;
1039                 printk("GDT-EISA: Can not detect controller IRQ,\n");
1040                 printk("Use IRQ setting from command line (IRQ = %d)\n",
1041                        ha->irq);
1042             } else {
1043                 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
1044                 printk("the controller BIOS or use command line parameters\n");
1045                 return 0;
1046             }
1047         }
1048     } else {
1049         eisacf = inb(eisa_adr+EISAREG) & 7;
1050         if (eisacf > 4)                         /* level triggered */
1051             eisacf -= 4;
1052         ha->irq = gdth_irq_tab[eisacf];
1053         ha->oem_id = OEM_ID_ICP;
1054         ha->type = GDT_EISA;
1055         ha->stype = id;
1056     }
1057
1058     ha->dma64_support = 0;
1059     return 1;
1060 }
1061
1062
1063 static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
1064 {
1065     register gdt2_dpram_str __iomem *dp2_ptr;
1066     int i;
1067     unchar irq_drq,prot_ver;
1068     ulong32 retries;
1069
1070     TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
1071
1072     ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
1073     if (ha->brd == NULL) {
1074         printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
1075         return 0;
1076     }
1077     dp2_ptr = ha->brd;
1078     gdth_writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
1079     /* reset interface area */
1080     memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
1081     if (gdth_readl(&dp2_ptr->u) != 0) {
1082         printk("GDT-ISA: Initialization error (DPMEM write error)\n");
1083         iounmap(ha->brd);
1084         return 0;
1085     }
1086
1087     /* disable board interrupts, read DRQ and IRQ */
1088     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1089     gdth_writeb(0x00, &dp2_ptr->io.irqen);
1090     gdth_writeb(0x00, &dp2_ptr->u.ic.S_Status);
1091     gdth_writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
1092
1093     irq_drq = gdth_readb(&dp2_ptr->io.rq);
1094     for (i=0; i<3; ++i) {
1095         if ((irq_drq & 1)==0)
1096             break;
1097         irq_drq >>= 1;
1098     }
1099     ha->drq = gdth_drq_tab[i];
1100
1101     irq_drq = gdth_readb(&dp2_ptr->io.rq) >> 3;
1102     for (i=1; i<5; ++i) {
1103         if ((irq_drq & 1)==0)
1104             break;
1105         irq_drq >>= 1;
1106     }
1107     ha->irq = gdth_irq_tab[i];
1108
1109     /* deinitialize services */
1110     gdth_writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
1111     gdth_writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
1112     gdth_writeb(0, &dp2_ptr->io.event);
1113     retries = INIT_RETRIES;
1114     gdth_delay(20);
1115     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1116         if (--retries == 0) {
1117             printk("GDT-ISA: Initialization error (DEINIT failed)\n");
1118             iounmap(ha->brd);
1119             return 0;
1120         }
1121         gdth_delay(1);
1122     }
1123     prot_ver = (unchar)gdth_readl(&dp2_ptr->u.ic.S_Info[0]);
1124     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1125     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1126     if (prot_ver != PROTOCOL_VERSION) {
1127         printk("GDT-ISA: Illegal protocol version\n");
1128         iounmap(ha->brd);
1129         return 0;
1130     }
1131
1132     ha->oem_id = OEM_ID_ICP;
1133     ha->type = GDT_ISA;
1134     ha->ic_all_size = sizeof(dp2_ptr->u);
1135     ha->stype= GDT2_ID;
1136     ha->brd_phys = bios_adr >> 4;
1137
1138     /* special request to controller BIOS */
1139     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
1140     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
1141     gdth_writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
1142     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
1143     gdth_writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
1144     gdth_writeb(0, &dp2_ptr->io.event);
1145     retries = INIT_RETRIES;
1146     gdth_delay(20);
1147     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1148         if (--retries == 0) {
1149             printk("GDT-ISA: Initialization error\n");
1150             iounmap(ha->brd);
1151             return 0;
1152         }
1153         gdth_delay(1);
1154     }
1155     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1156     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1157
1158     ha->dma64_support = 0;
1159     return 1;
1160 }
1161
1162
1163 static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
1164 {
1165     register gdt6_dpram_str __iomem *dp6_ptr;
1166     register gdt6c_dpram_str __iomem *dp6c_ptr;
1167     register gdt6m_dpram_str __iomem *dp6m_ptr;
1168     ulong32 retries;
1169     unchar prot_ver;
1170     ushort command;
1171     int i, found = FALSE;
1172
1173     TRACE(("gdth_init_pci()\n"));
1174
1175     if (pcistr->pdev->vendor == PCI_VENDOR_ID_INTEL)
1176         ha->oem_id = OEM_ID_INTEL;
1177     else
1178         ha->oem_id = OEM_ID_ICP;
1179     ha->brd_phys = (pcistr->pdev->bus->number << 8) | (pcistr->pdev->devfn & 0xf8);
1180     ha->stype = (ulong32)pcistr->pdev->device;
1181     ha->irq = pcistr->irq;
1182     ha->pdev = pcistr->pdev;
1183
1184     if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
1185         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1186         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
1187         if (ha->brd == NULL) {
1188             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1189             return 0;
1190         }
1191         /* check and reset interface area */
1192         dp6_ptr = ha->brd;
1193         gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1194         if (gdth_readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1195             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1196                    pcistr->dpmem);
1197             found = FALSE;
1198             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1199                 iounmap(ha->brd);
1200                 ha->brd = ioremap(i, sizeof(ushort));
1201                 if (ha->brd == NULL) {
1202                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1203                     return 0;
1204                 }
1205                 if (gdth_readw(ha->brd) != 0xffff) {
1206                     TRACE2(("init_pci_old() address 0x%x busy\n", i));
1207                     continue;
1208                 }
1209                 iounmap(ha->brd);
1210                 pci_write_config_dword(pcistr->pdev,
1211                                        PCI_BASE_ADDRESS_0, i);
1212                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
1213                 if (ha->brd == NULL) {
1214                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1215                     return 0;
1216                 }
1217                 dp6_ptr = ha->brd;
1218                 gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1219                 if (gdth_readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1220                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1221                     found = TRUE;
1222                     break;
1223                 }
1224             }
1225             if (!found) {
1226                 printk("GDT-PCI: No free address found!\n");
1227                 iounmap(ha->brd);
1228                 return 0;
1229             }
1230         }
1231         memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
1232         if (gdth_readl(&dp6_ptr->u) != 0) {
1233             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1234             iounmap(ha->brd);
1235             return 0;
1236         }
1237
1238         /* disable board interrupts, deinit services */
1239         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1240         gdth_writeb(0x00, &dp6_ptr->io.irqen);
1241         gdth_writeb(0x00, &dp6_ptr->u.ic.S_Status);
1242         gdth_writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
1243
1244         gdth_writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
1245         gdth_writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
1246         gdth_writeb(0, &dp6_ptr->io.event);
1247         retries = INIT_RETRIES;
1248         gdth_delay(20);
1249         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1250             if (--retries == 0) {
1251                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1252                 iounmap(ha->brd);
1253                 return 0;
1254             }
1255             gdth_delay(1);
1256         }
1257         prot_ver = (unchar)gdth_readl(&dp6_ptr->u.ic.S_Info[0]);
1258         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1259         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1260         if (prot_ver != PROTOCOL_VERSION) {
1261             printk("GDT-PCI: Illegal protocol version\n");
1262             iounmap(ha->brd);
1263             return 0;
1264         }
1265
1266         ha->type = GDT_PCI;
1267         ha->ic_all_size = sizeof(dp6_ptr->u);
1268
1269         /* special command to controller BIOS */
1270         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1271         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1272         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1273         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1274         gdth_writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1275         gdth_writeb(0, &dp6_ptr->io.event);
1276         retries = INIT_RETRIES;
1277         gdth_delay(20);
1278         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1279             if (--retries == 0) {
1280                 printk("GDT-PCI: Initialization error\n");
1281                 iounmap(ha->brd);
1282                 return 0;
1283             }
1284             gdth_delay(1);
1285         }
1286         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1287         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1288
1289         ha->dma64_support = 0;
1290
1291     } else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1292         ha->plx = (gdt6c_plx_regs *)pcistr->io;
1293         TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1294             pcistr->dpmem,ha->irq));
1295         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1296         if (ha->brd == NULL) {
1297             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1298             iounmap(ha->brd);
1299             return 0;
1300         }
1301         /* check and reset interface area */
1302         dp6c_ptr = ha->brd;
1303         gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1304         if (gdth_readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1305             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1306                    pcistr->dpmem);
1307             found = FALSE;
1308             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1309                 iounmap(ha->brd);
1310                 ha->brd = ioremap(i, sizeof(ushort));
1311                 if (ha->brd == NULL) {
1312                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1313                     return 0;
1314                 }
1315                 if (gdth_readw(ha->brd) != 0xffff) {
1316                     TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1317                     continue;
1318                 }
1319                 iounmap(ha->brd);
1320                 pci_write_config_dword(pcistr->pdev,
1321                                        PCI_BASE_ADDRESS_2, i);
1322                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1323                 if (ha->brd == NULL) {
1324                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1325                     return 0;
1326                 }
1327                 dp6c_ptr = ha->brd;
1328                 gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1329                 if (gdth_readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1330                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1331                     found = TRUE;
1332                     break;
1333                 }
1334             }
1335             if (!found) {
1336                 printk("GDT-PCI: No free address found!\n");
1337                 iounmap(ha->brd);
1338                 return 0;
1339             }
1340         }
1341         memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
1342         if (gdth_readl(&dp6c_ptr->u) != 0) {
1343             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1344             iounmap(ha->brd);
1345             return 0;
1346         }
1347
1348         /* disable board interrupts, deinit services */
1349         outb(0x00,PTR2USHORT(&ha->plx->control1));
1350         outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1351
1352         gdth_writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1353         gdth_writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1354
1355         gdth_writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1356         gdth_writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1357
1358         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1359
1360         retries = INIT_RETRIES;
1361         gdth_delay(20);
1362         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1363             if (--retries == 0) {
1364                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1365                 iounmap(ha->brd);
1366                 return 0;
1367             }
1368             gdth_delay(1);
1369         }
1370         prot_ver = (unchar)gdth_readl(&dp6c_ptr->u.ic.S_Info[0]);
1371         gdth_writeb(0, &dp6c_ptr->u.ic.Status);
1372         if (prot_ver != PROTOCOL_VERSION) {
1373             printk("GDT-PCI: Illegal protocol version\n");
1374             iounmap(ha->brd);
1375             return 0;
1376         }
1377
1378         ha->type = GDT_PCINEW;
1379         ha->ic_all_size = sizeof(dp6c_ptr->u);
1380
1381         /* special command to controller BIOS */
1382         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1383         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1384         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1385         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1386         gdth_writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1387
1388         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1389
1390         retries = INIT_RETRIES;
1391         gdth_delay(20);
1392         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1393             if (--retries == 0) {
1394                 printk("GDT-PCI: Initialization error\n");
1395                 iounmap(ha->brd);
1396                 return 0;
1397             }
1398             gdth_delay(1);
1399         }
1400         gdth_writeb(0, &dp6c_ptr->u.ic.S_Status);
1401
1402         ha->dma64_support = 0;
1403
1404     } else {                                            /* MPR */
1405         TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1406         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1407         if (ha->brd == NULL) {
1408             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1409             return 0;
1410         }
1411
1412         /* manipulate config. space to enable DPMEM, start RP controller */
1413         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1414         command |= 6;
1415         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1416         if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1417             pci_resource_start(pcistr->pdev, 8) = 0UL;
1418         i = 0xFEFF0001UL;
1419         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1420         gdth_delay(1);
1421         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1422                                pci_resource_start(pcistr->pdev, 8));
1423
1424         dp6m_ptr = ha->brd;
1425
1426         /* Ensure that it is safe to access the non HW portions of DPMEM.
1427          * Aditional check needed for Xscale based RAID controllers */
1428         while( ((int)gdth_readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1429             gdth_delay(1);
1430
1431         /* check and reset interface area */
1432         gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1433         if (gdth_readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1434             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1435                    pcistr->dpmem);
1436             found = FALSE;
1437             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1438                 iounmap(ha->brd);
1439                 ha->brd = ioremap(i, sizeof(ushort));
1440                 if (ha->brd == NULL) {
1441                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1442                     return 0;
1443                 }
1444                 if (gdth_readw(ha->brd) != 0xffff) {
1445                     TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1446                     continue;
1447                 }
1448                 iounmap(ha->brd);
1449                 pci_write_config_dword(pcistr->pdev,
1450                                        PCI_BASE_ADDRESS_0, i);
1451                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1452                 if (ha->brd == NULL) {
1453                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1454                     return 0;
1455                 }
1456                 dp6m_ptr = ha->brd;
1457                 gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1458                 if (gdth_readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1459                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1460                     found = TRUE;
1461                     break;
1462                 }
1463             }
1464             if (!found) {
1465                 printk("GDT-PCI: No free address found!\n");
1466                 iounmap(ha->brd);
1467                 return 0;
1468             }
1469         }
1470         memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1471
1472         /* disable board interrupts, deinit services */
1473         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1474                     &dp6m_ptr->i960r.edoor_en_reg);
1475         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1476         gdth_writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1477         gdth_writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1478
1479         gdth_writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1480         gdth_writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1481         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1482         retries = INIT_RETRIES;
1483         gdth_delay(20);
1484         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1485             if (--retries == 0) {
1486                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1487                 iounmap(ha->brd);
1488                 return 0;
1489             }
1490             gdth_delay(1);
1491         }
1492         prot_ver = (unchar)gdth_readl(&dp6m_ptr->u.ic.S_Info[0]);
1493         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1494         if (prot_ver != PROTOCOL_VERSION) {
1495             printk("GDT-PCI: Illegal protocol version\n");
1496             iounmap(ha->brd);
1497             return 0;
1498         }
1499
1500         ha->type = GDT_PCIMPR;
1501         ha->ic_all_size = sizeof(dp6m_ptr->u);
1502
1503         /* special command to controller BIOS */
1504         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1505         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1506         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1507         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1508         gdth_writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1509         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1510         retries = INIT_RETRIES;
1511         gdth_delay(20);
1512         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1513             if (--retries == 0) {
1514                 printk("GDT-PCI: Initialization error\n");
1515                 iounmap(ha->brd);
1516                 return 0;
1517             }
1518             gdth_delay(1);
1519         }
1520         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1521
1522         /* read FW version to detect 64-bit DMA support */
1523         gdth_writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1524         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1525         retries = INIT_RETRIES;
1526         gdth_delay(20);
1527         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1528             if (--retries == 0) {
1529                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1530                 iounmap(ha->brd);
1531                 return 0;
1532             }
1533             gdth_delay(1);
1534         }
1535         prot_ver = (unchar)(gdth_readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1536         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1537         if (prot_ver < 0x2b)      /* FW < x.43: no 64-bit DMA support */
1538             ha->dma64_support = 0;
1539         else
1540             ha->dma64_support = 1;
1541     }
1542
1543     return 1;
1544 }
1545
1546
1547 /* controller protocol functions */
1548
1549 static void __init gdth_enable_int(int hanum)
1550 {
1551     gdth_ha_str *ha;
1552     ulong flags;
1553     gdt2_dpram_str __iomem *dp2_ptr;
1554     gdt6_dpram_str __iomem *dp6_ptr;
1555     gdt6m_dpram_str __iomem *dp6m_ptr;
1556
1557     TRACE(("gdth_enable_int() hanum %d\n",hanum));
1558     ha = HADATA(gdth_ctr_tab[hanum]);
1559     spin_lock_irqsave(&ha->smp_lock, flags);
1560
1561     if (ha->type == GDT_EISA) {
1562         outb(0xff, ha->bmic + EDOORREG);
1563         outb(0xff, ha->bmic + EDENABREG);
1564         outb(0x01, ha->bmic + EINTENABREG);
1565     } else if (ha->type == GDT_ISA) {
1566         dp2_ptr = ha->brd;
1567         gdth_writeb(1, &dp2_ptr->io.irqdel);
1568         gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1569         gdth_writeb(1, &dp2_ptr->io.irqen);
1570     } else if (ha->type == GDT_PCI) {
1571         dp6_ptr = ha->brd;
1572         gdth_writeb(1, &dp6_ptr->io.irqdel);
1573         gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1574         gdth_writeb(1, &dp6_ptr->io.irqen);
1575     } else if (ha->type == GDT_PCINEW) {
1576         outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1577         outb(0x03, PTR2USHORT(&ha->plx->control1));
1578     } else if (ha->type == GDT_PCIMPR) {
1579         dp6m_ptr = ha->brd;
1580         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1581         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1582                     &dp6m_ptr->i960r.edoor_en_reg);
1583     }
1584     spin_unlock_irqrestore(&ha->smp_lock, flags);
1585 }
1586
1587
1588 static int gdth_get_status(unchar *pIStatus,int irq)
1589 {
1590     register gdth_ha_str *ha;
1591     int i;
1592
1593     TRACE(("gdth_get_status() irq %d ctr_count %d\n",
1594            irq,gdth_ctr_count));
1595
1596     *pIStatus = 0;
1597     for (i=0; i<gdth_ctr_count; ++i) {
1598         ha = HADATA(gdth_ctr_tab[i]);
1599         if (ha->irq != (unchar)irq)             /* check IRQ */
1600             continue;
1601         if (ha->type == GDT_EISA)
1602             *pIStatus = inb((ushort)ha->bmic + EDOORREG);
1603         else if (ha->type == GDT_ISA)
1604             *pIStatus =
1605                 gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1606         else if (ha->type == GDT_PCI)
1607             *pIStatus =
1608                 gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1609         else if (ha->type == GDT_PCINEW)
1610             *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1611         else if (ha->type == GDT_PCIMPR)
1612             *pIStatus =
1613                 gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1614
1615         if (*pIStatus)
1616             return i;                           /* board found */
1617     }
1618     return -1;
1619 }
1620
1621
1622 static int gdth_test_busy(int hanum)
1623 {
1624     register gdth_ha_str *ha;
1625     register int gdtsema0 = 0;
1626
1627     TRACE(("gdth_test_busy() hanum %d\n",hanum));
1628
1629     ha = HADATA(gdth_ctr_tab[hanum]);
1630     if (ha->type == GDT_EISA)
1631         gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1632     else if (ha->type == GDT_ISA)
1633         gdtsema0 = (int)gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1634     else if (ha->type == GDT_PCI)
1635         gdtsema0 = (int)gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1636     else if (ha->type == GDT_PCINEW)
1637         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1638     else if (ha->type == GDT_PCIMPR)
1639         gdtsema0 =
1640             (int)gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1641
1642     return (gdtsema0 & 1);
1643 }
1644
1645
1646 static int gdth_get_cmd_index(int hanum)
1647 {
1648     register gdth_ha_str *ha;
1649     int i;
1650
1651     TRACE(("gdth_get_cmd_index() hanum %d\n",hanum));
1652
1653     ha = HADATA(gdth_ctr_tab[hanum]);
1654     for (i=0; i<GDTH_MAXCMDS; ++i) {
1655         if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1656             ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1657             ha->cmd_tab[i].service = ha->pccb->Service;
1658             ha->pccb->CommandIndex = (ulong32)i+2;
1659             return (i+2);
1660         }
1661     }
1662     return 0;
1663 }
1664
1665
1666 static void gdth_set_sema0(int hanum)
1667 {
1668     register gdth_ha_str *ha;
1669
1670     TRACE(("gdth_set_sema0() hanum %d\n",hanum));
1671
1672     ha = HADATA(gdth_ctr_tab[hanum]);
1673     if (ha->type == GDT_EISA) {
1674         outb(1, ha->bmic + SEMA0REG);
1675     } else if (ha->type == GDT_ISA) {
1676         gdth_writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1677     } else if (ha->type == GDT_PCI) {
1678         gdth_writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1679     } else if (ha->type == GDT_PCINEW) {
1680         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1681     } else if (ha->type == GDT_PCIMPR) {
1682         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1683     }
1684 }
1685
1686
1687 static void gdth_copy_command(int hanum)
1688 {
1689     register gdth_ha_str *ha;
1690     register gdth_cmd_str *cmd_ptr;
1691     register gdt6m_dpram_str __iomem *dp6m_ptr;
1692     register gdt6c_dpram_str __iomem *dp6c_ptr;
1693     gdt6_dpram_str __iomem *dp6_ptr;
1694     gdt2_dpram_str __iomem *dp2_ptr;
1695     ushort cp_count,dp_offset,cmd_no;
1696
1697     TRACE(("gdth_copy_command() hanum %d\n",hanum));
1698
1699     ha = HADATA(gdth_ctr_tab[hanum]);
1700     cp_count = ha->cmd_len;
1701     dp_offset= ha->cmd_offs_dpmem;
1702     cmd_no   = ha->cmd_cnt;
1703     cmd_ptr  = ha->pccb;
1704
1705     ++ha->cmd_cnt;
1706     if (ha->type == GDT_EISA)
1707         return;                                 /* no DPMEM, no copy */
1708
1709     /* set cpcount dword aligned */
1710     if (cp_count & 3)
1711         cp_count += (4 - (cp_count & 3));
1712
1713     ha->cmd_offs_dpmem += cp_count;
1714
1715     /* set offset and service, copy command to DPMEM */
1716     if (ha->type == GDT_ISA) {
1717         dp2_ptr = ha->brd;
1718         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1719                     &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1720         gdth_writew((ushort)cmd_ptr->Service,
1721                     &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1722         memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1723     } else if (ha->type == GDT_PCI) {
1724         dp6_ptr = ha->brd;
1725         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1726                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1727         gdth_writew((ushort)cmd_ptr->Service,
1728                     &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1729         memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1730     } else if (ha->type == GDT_PCINEW) {
1731         dp6c_ptr = ha->brd;
1732         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1733                     &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1734         gdth_writew((ushort)cmd_ptr->Service,
1735                     &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1736         memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1737     } else if (ha->type == GDT_PCIMPR) {
1738         dp6m_ptr = ha->brd;
1739         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1740                     &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1741         gdth_writew((ushort)cmd_ptr->Service,
1742                     &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1743         memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1744     }
1745 }
1746
1747
1748 static void gdth_release_event(int hanum)
1749 {
1750     register gdth_ha_str *ha;
1751
1752     TRACE(("gdth_release_event() hanum %d\n",hanum));
1753     ha = HADATA(gdth_ctr_tab[hanum]);
1754
1755 #ifdef GDTH_STATISTICS
1756     {
1757         ulong32 i,j;
1758         for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1759             if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1760                 ++i;
1761         }
1762         if (max_index < i) {
1763             max_index = i;
1764             TRACE3(("GDT: max_index = %d\n",(ushort)i));
1765         }
1766     }
1767 #endif
1768
1769     if (ha->pccb->OpCode == GDT_INIT)
1770         ha->pccb->Service |= 0x80;
1771
1772     if (ha->type == GDT_EISA) {
1773         if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
1774             outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1775         outb(ha->pccb->Service, ha->bmic + LDOORREG);
1776     } else if (ha->type == GDT_ISA) {
1777         gdth_writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1778     } else if (ha->type == GDT_PCI) {
1779         gdth_writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1780     } else if (ha->type == GDT_PCINEW) {
1781         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1782     } else if (ha->type == GDT_PCIMPR) {
1783         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1784     }
1785 }
1786
1787
1788 static int gdth_wait(int hanum,int index,ulong32 time)
1789 {
1790     gdth_ha_str *ha;
1791     int answer_found = FALSE;
1792
1793     TRACE(("gdth_wait() hanum %d index %d time %d\n",hanum,index,time));
1794
1795     ha = HADATA(gdth_ctr_tab[hanum]);
1796     if (index == 0)
1797         return 1;                               /* no wait required */
1798
1799     gdth_from_wait = TRUE;
1800     do {
1801         gdth_interrupt((int)ha->irq,ha);
1802         if (wait_hanum==hanum && wait_index==index) {
1803             answer_found = TRUE;
1804             break;
1805         }
1806         gdth_delay(1);
1807     } while (--time);
1808     gdth_from_wait = FALSE;
1809
1810     while (gdth_test_busy(hanum))
1811         gdth_delay(0);
1812
1813     return (answer_found);
1814 }
1815
1816
1817 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
1818                              ulong64 p2,ulong64 p3)
1819 {
1820     register gdth_ha_str *ha;
1821     register gdth_cmd_str *cmd_ptr;
1822     int retries,index;
1823
1824     TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1825
1826     ha = HADATA(gdth_ctr_tab[hanum]);
1827     cmd_ptr = ha->pccb;
1828     memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1829
1830     /* make command  */
1831     for (retries = INIT_RETRIES;;) {
1832         cmd_ptr->Service          = service;
1833         cmd_ptr->RequestBuffer    = INTERNAL_CMND;
1834         if (!(index=gdth_get_cmd_index(hanum))) {
1835             TRACE(("GDT: No free command index found\n"));
1836             return 0;
1837         }
1838         gdth_set_sema0(hanum);
1839         cmd_ptr->OpCode           = opcode;
1840         cmd_ptr->BoardNode        = LOCALBOARD;
1841         if (service == CACHESERVICE) {
1842             if (opcode == GDT_IOCTL) {
1843                 cmd_ptr->u.ioctl.subfunc = p1;
1844                 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1845                 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1846                 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1847             } else {
1848                 if (ha->cache_feat & GDT_64BIT) {
1849                     cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1850                     cmd_ptr->u.cache64.BlockNo  = p2;
1851                 } else {
1852                     cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1853                     cmd_ptr->u.cache.BlockNo  = (ulong32)p2;
1854                 }
1855             }
1856         } else if (service == SCSIRAWSERVICE) {
1857             if (ha->raw_feat & GDT_64BIT) {
1858                 cmd_ptr->u.raw64.direction  = p1;
1859                 cmd_ptr->u.raw64.bus        = (unchar)p2;
1860                 cmd_ptr->u.raw64.target     = (unchar)p3;
1861                 cmd_ptr->u.raw64.lun        = (unchar)(p3 >> 8);
1862             } else {
1863                 cmd_ptr->u.raw.direction  = p1;
1864                 cmd_ptr->u.raw.bus        = (unchar)p2;
1865                 cmd_ptr->u.raw.target     = (unchar)p3;
1866                 cmd_ptr->u.raw.lun        = (unchar)(p3 >> 8);
1867             }
1868         } else if (service == SCREENSERVICE) {
1869             if (opcode == GDT_REALTIME) {
1870                 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1871                 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1872                 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1873             }
1874         }
1875         ha->cmd_len          = sizeof(gdth_cmd_str);
1876         ha->cmd_offs_dpmem   = 0;
1877         ha->cmd_cnt          = 0;
1878         gdth_copy_command(hanum);
1879         gdth_release_event(hanum);
1880         gdth_delay(20);
1881         if (!gdth_wait(hanum,index,INIT_TIMEOUT)) {
1882             printk("GDT: Initialization error (timeout service %d)\n",service);
1883             return 0;
1884         }
1885         if (ha->status != S_BSY || --retries == 0)
1886             break;
1887         gdth_delay(1);
1888     }
1889
1890     return (ha->status != S_OK ? 0:1);
1891 }
1892
1893
1894 /* search for devices */
1895
1896 static int __init gdth_search_drives(int hanum)
1897 {
1898     register gdth_ha_str *ha;
1899     ushort cdev_cnt, i;
1900     int ok;
1901     ulong32 bus_no, drv_cnt, drv_no, j;
1902     gdth_getch_str *chn;
1903     gdth_drlist_str *drl;
1904     gdth_iochan_str *ioc;
1905     gdth_raw_iochan_str *iocr;
1906     gdth_arcdl_str *alst;
1907     gdth_alist_str *alst2;
1908     gdth_oem_str_ioctl *oemstr;
1909 #ifdef INT_COAL
1910     gdth_perf_modes *pmod;
1911 #endif
1912
1913 #ifdef GDTH_RTC
1914     unchar rtc[12];
1915     ulong flags;
1916 #endif
1917
1918     TRACE(("gdth_search_drives() hanum %d\n",hanum));
1919     ha = HADATA(gdth_ctr_tab[hanum]);
1920     ok = 0;
1921
1922     /* initialize controller services, at first: screen service */
1923     ha->screen_feat = 0;
1924     if (!force_dma32) {
1925         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_X_INIT_SCR,0,0,0);
1926         if (ok)
1927             ha->screen_feat = GDT_64BIT;
1928     }
1929     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1930         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_INIT,0,0,0);
1931     if (!ok) {
1932         printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1933                hanum, ha->status);
1934         return 0;
1935     }
1936     TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1937
1938 #ifdef GDTH_RTC
1939     /* read realtime clock info, send to controller */
1940     /* 1. wait for the falling edge of update flag */
1941     spin_lock_irqsave(&rtc_lock, flags);
1942     for (j = 0; j < 1000000; ++j)
1943         if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1944             break;
1945     for (j = 0; j < 1000000; ++j)
1946         if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1947             break;
1948     /* 2. read info */
1949     do {
1950         for (j = 0; j < 12; ++j)
1951             rtc[j] = CMOS_READ(j);
1952     } while (rtc[0] != CMOS_READ(0));
1953     spin_unlock_irqrestore(&rtc_lock, flags);
1954     TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1955             *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1956     /* 3. send to controller firmware */
1957     gdth_internal_cmd(hanum,SCREENSERVICE,GDT_REALTIME, *(ulong32 *)&rtc[0],
1958                       *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1959 #endif
1960
1961     /* unfreeze all IOs */
1962     gdth_internal_cmd(hanum,CACHESERVICE,GDT_UNFREEZE_IO,0,0,0);
1963
1964     /* initialize cache service */
1965     ha->cache_feat = 0;
1966     if (!force_dma32) {
1967         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INIT_HOST,LINUX_OS,0,0);
1968         if (ok)
1969             ha->cache_feat = GDT_64BIT;
1970     }
1971     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1972         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_INIT,LINUX_OS,0,0);
1973     if (!ok) {
1974         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1975                hanum, ha->status);
1976         return 0;
1977     }
1978     TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1979     cdev_cnt = (ushort)ha->info;
1980     ha->fw_vers = ha->service;
1981
1982 #ifdef INT_COAL
1983     if (ha->type == GDT_PCIMPR) {
1984         /* set perf. modes */
1985         pmod = (gdth_perf_modes *)ha->pscratch;
1986         pmod->version          = 1;
1987         pmod->st_mode          = 1;    /* enable one status buffer */
1988         *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1989         pmod->st_buff_indx1    = COALINDEX;
1990         pmod->st_buff_addr2    = 0;
1991         pmod->st_buff_u_addr2  = 0;
1992         pmod->st_buff_indx2    = 0;
1993         pmod->st_buff_size     = sizeof(gdth_coal_status) * MAXOFFSETS;
1994         pmod->cmd_mode         = 0;    // disable all cmd buffers
1995         pmod->cmd_buff_addr1   = 0;
1996         pmod->cmd_buff_u_addr1 = 0;
1997         pmod->cmd_buff_indx1   = 0;
1998         pmod->cmd_buff_addr2   = 0;
1999         pmod->cmd_buff_u_addr2 = 0;
2000         pmod->cmd_buff_indx2   = 0;
2001         pmod->cmd_buff_size    = 0;
2002         pmod->reserved1        = 0;
2003         pmod->reserved2        = 0;
2004         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,SET_PERF_MODES,
2005                               INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
2006             printk("GDT-HA %d: Interrupt coalescing activated\n", hanum);
2007         }
2008     }
2009 #endif
2010
2011     /* detect number of buses - try new IOCTL */
2012     iocr = (gdth_raw_iochan_str *)ha->pscratch;
2013     iocr->hdr.version        = 0xffffffff;
2014     iocr->hdr.list_entries   = MAXBUS;
2015     iocr->hdr.first_chan     = 0;
2016     iocr->hdr.last_chan      = MAXBUS-1;
2017     iocr->hdr.list_offset    = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
2018     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_RAW_DESC,
2019                           INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
2020         TRACE2(("IOCHAN_RAW_DESC supported!\n"));
2021         ha->bus_cnt = iocr->hdr.chan_count;
2022         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2023             if (iocr->list[bus_no].proc_id < MAXID)
2024                 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
2025             else
2026                 ha->bus_id[bus_no] = 0xff;
2027         }
2028     } else {
2029         /* old method */
2030         chn = (gdth_getch_str *)ha->pscratch;
2031         for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
2032             chn->channel_no = bus_no;
2033             if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2034                                    SCSI_CHAN_CNT | L_CTRL_PATTERN,
2035                                    IO_CHANNEL | INVALID_CHANNEL,
2036                                    sizeof(gdth_getch_str))) {
2037                 if (bus_no == 0) {
2038                     printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
2039                            hanum, ha->status);
2040                     return 0;
2041                 }
2042                 break;
2043             }
2044             if (chn->siop_id < MAXID)
2045                 ha->bus_id[bus_no] = chn->siop_id;
2046             else
2047                 ha->bus_id[bus_no] = 0xff;
2048         }
2049         ha->bus_cnt = (unchar)bus_no;
2050     }
2051     TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
2052
2053     /* read cache configuration */
2054     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_INFO,
2055                            INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
2056         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
2057                hanum, ha->status);
2058         return 0;
2059     }
2060     ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
2061     TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
2062             ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
2063             ha->cpar.write_back,ha->cpar.block_size));
2064
2065     /* read board info and features */
2066     ha->more_proc = FALSE;
2067     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_INFO,
2068                           INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
2069         memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
2070                sizeof(gdth_binfo_str));
2071         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_FEATURES,
2072                               INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
2073             TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
2074             ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
2075             ha->more_proc = TRUE;
2076         }
2077     } else {
2078         TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
2079         strcpy(ha->binfo.type_string, gdth_ctr_name(hanum));
2080     }
2081     TRACE2(("Controller name: %s\n",ha->binfo.type_string));
2082
2083     /* read more informations */
2084     if (ha->more_proc) {
2085         /* physical drives, channel addresses */
2086         ioc = (gdth_iochan_str *)ha->pscratch;
2087         ioc->hdr.version        = 0xffffffff;
2088         ioc->hdr.list_entries   = MAXBUS;
2089         ioc->hdr.first_chan     = 0;
2090         ioc->hdr.last_chan      = MAXBUS-1;
2091         ioc->hdr.list_offset    = GDTOFFSOF(gdth_iochan_str, list[0]);
2092         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_DESC,
2093                               INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
2094             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2095                 ha->raw[bus_no].address = ioc->list[bus_no].address;
2096                 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
2097             }
2098         } else {
2099             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2100                 ha->raw[bus_no].address = IO_CHANNEL;
2101                 ha->raw[bus_no].local_no = bus_no;
2102             }
2103         }
2104         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2105             chn = (gdth_getch_str *)ha->pscratch;
2106             chn->channel_no = ha->raw[bus_no].local_no;
2107             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2108                                   SCSI_CHAN_CNT | L_CTRL_PATTERN,
2109                                   ha->raw[bus_no].address | INVALID_CHANNEL,
2110                                   sizeof(gdth_getch_str))) {
2111                 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
2112                 TRACE2(("Channel %d: %d phys. drives\n",
2113                         bus_no,chn->drive_cnt));
2114             }
2115             if (ha->raw[bus_no].pdev_cnt > 0) {
2116                 drl = (gdth_drlist_str *)ha->pscratch;
2117                 drl->sc_no = ha->raw[bus_no].local_no;
2118                 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
2119                 if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2120                                       SCSI_DR_LIST | L_CTRL_PATTERN,
2121                                       ha->raw[bus_no].address | INVALID_CHANNEL,
2122                                       sizeof(gdth_drlist_str))) {
2123                     for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
2124                         ha->raw[bus_no].id_list[j] = drl->sc_list[j];
2125                 } else {
2126                     ha->raw[bus_no].pdev_cnt = 0;
2127                 }
2128             }
2129         }
2130
2131         /* logical drives */
2132         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_CNT,
2133                               INVALID_CHANNEL,sizeof(ulong32))) {
2134             drv_cnt = *(ulong32 *)ha->pscratch;
2135             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_LIST,
2136                                   INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
2137                 for (j = 0; j < drv_cnt; ++j) {
2138                     drv_no = ((ulong32 *)ha->pscratch)[j];
2139                     if (drv_no < MAX_LDRIVES) {
2140                         ha->hdr[drv_no].is_logdrv = TRUE;
2141                         TRACE2(("Drive %d is log. drive\n",drv_no));
2142                     }
2143                 }
2144             }
2145             alst = (gdth_arcdl_str *)ha->pscratch;
2146             alst->entries_avail = MAX_LDRIVES;
2147             alst->first_entry = 0;
2148             alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
2149             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2150                                   ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
2151                                   INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
2152                                   (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
2153                 for (j = 0; j < alst->entries_init; ++j) {
2154                     ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
2155                     ha->hdr[j].is_master = alst->list[j].is_master;
2156                     ha->hdr[j].is_parity = alst->list[j].is_parity;
2157                     ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
2158                     ha->hdr[j].master_no = alst->list[j].cd_handle;
2159                 }
2160             } else if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2161                                          ARRAY_DRV_LIST | LA_CTRL_PATTERN,
2162                                          0, 35 * sizeof(gdth_alist_str))) {
2163                 for (j = 0; j < 35; ++j) {
2164                     alst2 = &((gdth_alist_str *)ha->pscratch)[j];
2165                     ha->hdr[j].is_arraydrv = alst2->is_arrayd;
2166                     ha->hdr[j].is_master = alst2->is_master;
2167                     ha->hdr[j].is_parity = alst2->is_parity;
2168                     ha->hdr[j].is_hotfix = alst2->is_hotfix;
2169                     ha->hdr[j].master_no = alst2->cd_handle;
2170                 }
2171             }
2172         }
2173     }
2174
2175     /* initialize raw service */
2176     ha->raw_feat = 0;
2177     if (!force_dma32) {
2178         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_X_INIT_RAW,0,0,0);
2179         if (ok)
2180             ha->raw_feat = GDT_64BIT;
2181     }
2182     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
2183         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_INIT,0,0,0);
2184     if (!ok) {
2185         printk("GDT-HA %d: Initialization error raw service (code %d)\n",
2186                hanum, ha->status);
2187         return 0;
2188     }
2189     TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
2190
2191     /* set/get features raw service (scatter/gather) */
2192     if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_SET_FEAT,SCATTER_GATHER,
2193                           0,0)) {
2194         TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
2195         if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_GET_FEAT,0,0,0)) {
2196             TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
2197                     ha->info));
2198             ha->raw_feat |= (ushort)ha->info;
2199         }
2200     }
2201
2202     /* set/get features cache service (equal to raw service) */
2203     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_SET_FEAT,0,
2204                           SCATTER_GATHER,0)) {
2205         TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
2206         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_GET_FEAT,0,0,0)) {
2207             TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
2208                     ha->info));
2209             ha->cache_feat |= (ushort)ha->info;
2210         }
2211     }
2212
2213     /* reserve drives for raw service */
2214     if (reserve_mode != 0) {
2215         gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE_ALL,
2216                           reserve_mode == 1 ? 1 : 3, 0, 0);
2217         TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
2218                 ha->status));
2219     }
2220     for (i = 0; i < MAX_RES_ARGS; i += 4) {
2221         if (reserve_list[i] == hanum && reserve_list[i+1] < ha->bus_cnt &&
2222             reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
2223             TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
2224                     reserve_list[i], reserve_list[i+1],
2225                     reserve_list[i+2], reserve_list[i+3]));
2226             if (!gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE,0,
2227                                    reserve_list[i+1], reserve_list[i+2] |
2228                                    (reserve_list[i+3] << 8))) {
2229                 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
2230                        hanum, ha->status);
2231              }
2232         }
2233     }
2234
2235     /* Determine OEM string using IOCTL */
2236     oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
2237     oemstr->params.ctl_version = 0x01;
2238     oemstr->params.buffer_size = sizeof(oemstr->text);
2239     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2240                           CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
2241                           sizeof(gdth_oem_str_ioctl))) {
2242         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
2243         printk("GDT-HA %d: Vendor: %s Name: %s\n",
2244                hanum,oemstr->text.oem_company_name,ha->binfo.type_string);
2245         /* Save the Host Drive inquiry data */
2246 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2247         strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
2248                 sizeof(ha->oem_name));
2249 #else
2250         strncpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,7);
2251         ha->oem_name[7] = '\0';
2252 #endif
2253     } else {
2254         /* Old method, based on PCI ID */
2255         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
2256         printk("GDT-HA %d: Name: %s\n",
2257                hanum,ha->binfo.type_string);
2258 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2259         if (ha->oem_id == OEM_ID_INTEL)
2260             strlcpy(ha->oem_name,"Intel  ", sizeof(ha->oem_name));
2261         else
2262             strlcpy(ha->oem_name,"ICP    ", sizeof(ha->oem_name));
2263 #else
2264         if (ha->oem_id == OEM_ID_INTEL)
2265             strcpy(ha->oem_name,"Intel  ");
2266         else
2267             strcpy(ha->oem_name,"ICP    ");
2268 #endif
2269     }
2270
2271     /* scanning for host drives */
2272     for (i = 0; i < cdev_cnt; ++i)
2273         gdth_analyse_hdrive(hanum,i);
2274
2275     TRACE(("gdth_search_drives() OK\n"));
2276     return 1;
2277 }
2278
2279 static int gdth_analyse_hdrive(int hanum,ushort hdrive)
2280 {
2281     register gdth_ha_str *ha;
2282     ulong32 drv_cyls;
2283     int drv_hds, drv_secs;
2284
2285     TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n",hanum,hdrive));
2286     if (hdrive >= MAX_HDRIVES)
2287         return 0;
2288     ha = HADATA(gdth_ctr_tab[hanum]);
2289
2290     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_INFO,hdrive,0,0))
2291         return 0;
2292     ha->hdr[hdrive].present = TRUE;
2293     ha->hdr[hdrive].size = ha->info;
2294
2295     /* evaluate mapping (sectors per head, heads per cylinder) */
2296     ha->hdr[hdrive].size &= ~SECS32;
2297     if (ha->info2 == 0) {
2298         gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2299     } else {
2300         drv_hds = ha->info2 & 0xff;
2301         drv_secs = (ha->info2 >> 8) & 0xff;
2302         drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2303     }
2304     ha->hdr[hdrive].heads = (unchar)drv_hds;
2305     ha->hdr[hdrive].secs  = (unchar)drv_secs;
2306     /* round size */
2307     ha->hdr[hdrive].size  = drv_cyls * drv_hds * drv_secs;
2308
2309     if (ha->cache_feat & GDT_64BIT) {
2310         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INFO,hdrive,0,0)
2311             && ha->info2 != 0) {
2312             ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2313         }
2314     }
2315     TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2316             hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2317
2318     /* get informations about device */
2319     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_DEVTYPE,hdrive,0,0)) {
2320         TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2321                 hdrive,ha->info));
2322         ha->hdr[hdrive].devtype = (ushort)ha->info;
2323     }
2324
2325     /* cluster info */
2326     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_CLUST_INFO,hdrive,0,0)) {
2327         TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2328                 hdrive,ha->info));
2329         if (!shared_access)
2330             ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2331     }
2332
2333     /* R/W attributes */
2334     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_RW_ATTRIBS,hdrive,0,0)) {
2335         TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2336                 hdrive,ha->info));
2337         ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2338     }
2339
2340     return 1;
2341 }
2342
2343
2344 /* command queueing/sending functions */
2345
2346 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority)
2347 {
2348     register gdth_ha_str *ha;
2349     register Scsi_Cmnd *pscp;
2350     register Scsi_Cmnd *nscp;
2351     ulong flags;
2352     unchar b, t;
2353
2354     TRACE(("gdth_putq() priority %d\n",priority));
2355     ha = HADATA(gdth_ctr_tab[hanum]);
2356     spin_lock_irqsave(&ha->smp_lock, flags);
2357
2358     if (scp->done != gdth_scsi_done) {
2359         scp->SCp.this_residual = (int)priority;
2360         b = virt_ctr ? NUMDATA(scp->device->host)->busnum:scp->device->channel;
2361         t = scp->device->id;
2362         if (priority >= DEFAULT_PRI) {
2363             if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2364                 (b==ha->virt_bus && t<MAX_HDRIVES && ha->hdr[t].lock)) {
2365                 TRACE2(("gdth_putq(): locked IO ->update_timeout()\n"));
2366                 scp->SCp.buffers_residual = gdth_update_timeout(hanum, scp, 0);
2367             }
2368         }
2369     }
2370
2371     if (ha->req_first==NULL) {
2372         ha->req_first = scp;                    /* queue was empty */
2373         scp->SCp.ptr = NULL;
2374     } else {                                    /* queue not empty */
2375         pscp = ha->req_first;
2376         nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2377         /* priority: 0-highest,..,0xff-lowest */
2378         while (nscp && (unchar)nscp->SCp.this_residual <= priority) {
2379             pscp = nscp;
2380             nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2381         }
2382         pscp->SCp.ptr = (char *)scp;
2383         scp->SCp.ptr  = (char *)nscp;
2384     }
2385     spin_unlock_irqrestore(&ha->smp_lock, flags);
2386
2387 #ifdef GDTH_STATISTICS
2388     flags = 0;
2389     for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2390         ++flags;
2391     if (max_rq < flags) {
2392         max_rq = flags;
2393         TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2394     }
2395 #endif
2396 }
2397
2398 static void gdth_next(int hanum)
2399 {
2400     register gdth_ha_str *ha;
2401     register Scsi_Cmnd *pscp;
2402     register Scsi_Cmnd *nscp;
2403     unchar b, t, l, firsttime;
2404     unchar this_cmd, next_cmd;
2405     ulong flags = 0;
2406     int cmd_index;
2407
2408     TRACE(("gdth_next() hanum %d\n",hanum));
2409     ha = HADATA(gdth_ctr_tab[hanum]);
2410     if (!gdth_polling)
2411         spin_lock_irqsave(&ha->smp_lock, flags);
2412
2413     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2414     this_cmd = firsttime = TRUE;
2415     next_cmd = gdth_polling ? FALSE:TRUE;
2416     cmd_index = 0;
2417
2418     for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2419         if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2420             pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2421         if (nscp->done != gdth_scsi_done) {
2422             b = virt_ctr ?
2423                 NUMDATA(nscp->device->host)->busnum : nscp->device->channel;
2424             t = nscp->device->id;
2425             l = nscp->device->lun;
2426             if (nscp->SCp.this_residual >= DEFAULT_PRI) {
2427                 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2428                     (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2429                     continue;
2430             }
2431         } else
2432             b = t = l = 0;
2433
2434         if (firsttime) {
2435             if (gdth_test_busy(hanum)) {        /* controller busy ? */
2436                 TRACE(("gdth_next() controller %d busy !\n",hanum));
2437                 if (!gdth_polling) {
2438                     spin_unlock_irqrestore(&ha->smp_lock, flags);
2439                     return;
2440                 }
2441                 while (gdth_test_busy(hanum))
2442                     gdth_delay(1);
2443             }
2444             firsttime = FALSE;
2445         }
2446
2447         if (nscp->done != gdth_scsi_done) {
2448         if (nscp->SCp.phase == -1) {
2449             nscp->SCp.phase = CACHESERVICE;           /* default: cache svc. */
2450             if (nscp->cmnd[0] == TEST_UNIT_READY) {
2451                 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2452                         b, t, l));
2453                 /* TEST_UNIT_READY -> set scan mode */
2454                 if ((ha->scan_mode & 0x0f) == 0) {
2455                     if (b == 0 && t == 0 && l == 0) {
2456                         ha->scan_mode |= 1;
2457                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2458                     }
2459                 } else if ((ha->scan_mode & 0x0f) == 1) {
2460                     if (b == 0 && ((t == 0 && l == 1) ||
2461                          (t == 1 && l == 0))) {
2462                         nscp->SCp.sent_command = GDT_SCAN_START;
2463                         nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2464                             | SCSIRAWSERVICE;
2465                         ha->scan_mode = 0x12;
2466                         TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2467                                 ha->scan_mode));
2468                     } else {
2469                         ha->scan_mode &= 0x10;
2470                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2471                     }
2472                 } else if (ha->scan_mode == 0x12) {
2473                     if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2474                         nscp->SCp.phase = SCSIRAWSERVICE;
2475                         nscp->SCp.sent_command = GDT_SCAN_END;
2476                         ha->scan_mode &= 0x10;
2477                         TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2478                                 ha->scan_mode));
2479                     }
2480                 }
2481             }
2482             if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2483                 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2484                 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2485                 /* always GDT_CLUST_INFO! */
2486                 nscp->SCp.sent_command = GDT_CLUST_INFO;
2487             }
2488         }
2489         }
2490
2491         if (nscp->SCp.sent_command != -1) {
2492             if ((nscp->SCp.phase & 0xff) == CACHESERVICE) {
2493                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2494                     this_cmd = FALSE;
2495                 next_cmd = FALSE;
2496             } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) {
2497                 if (!(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2498                     this_cmd = FALSE;
2499                 next_cmd = FALSE;
2500             } else {
2501                 memset((char*)nscp->sense_buffer,0,16);
2502                 nscp->sense_buffer[0] = 0x70;
2503                 nscp->sense_buffer[2] = NOT_READY;
2504                 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2505                 if (!nscp->SCp.have_data_in)
2506                     nscp->SCp.have_data_in++;
2507                 else
2508                     nscp->scsi_done(nscp);
2509             }
2510         } else if (nscp->done == gdth_scsi_done) {
2511             if (!(cmd_index=gdth_special_cmd(hanum,nscp)))
2512                 this_cmd = FALSE;
2513             next_cmd = FALSE;
2514         } else if (b != ha->virt_bus) {
2515             if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2516                 !(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2517                 this_cmd = FALSE;
2518             else
2519                 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2520         } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2521             TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2522                     nscp->cmnd[0], b, t, l));
2523             nscp->result = DID_BAD_TARGET << 16;
2524             if (!nscp->SCp.have_data_in)
2525                 nscp->SCp.have_data_in++;
2526             else
2527                 nscp->scsi_done(nscp);
2528         } else {
2529             switch (nscp->cmnd[0]) {
2530               case TEST_UNIT_READY:
2531               case INQUIRY:
2532               case REQUEST_SENSE:
2533               case READ_CAPACITY:
2534               case VERIFY:
2535               case START_STOP:
2536               case MODE_SENSE:
2537               case SERVICE_ACTION_IN:
2538                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2539                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2540                        nscp->cmnd[4],nscp->cmnd[5]));
2541                 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2542                     /* return UNIT_ATTENTION */
2543                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2544                              nscp->cmnd[0], t));
2545                     ha->hdr[t].media_changed = FALSE;
2546                     memset((char*)nscp->sense_buffer,0,16);
2547                     nscp->sense_buffer[0] = 0x70;
2548                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2549                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2550                     if (!nscp->SCp.have_data_in)
2551                         nscp->SCp.have_data_in++;
2552                     else
2553                         nscp->scsi_done(nscp);
2554                 } else if (gdth_internal_cache_cmd(hanum,nscp))
2555                     nscp->scsi_done(nscp);
2556                 break;
2557
2558               case ALLOW_MEDIUM_REMOVAL:
2559                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2560                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2561                        nscp->cmnd[4],nscp->cmnd[5]));
2562                 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2563                     TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2564                     nscp->result = DID_OK << 16;
2565                     nscp->sense_buffer[0] = 0;
2566                     if (!nscp->SCp.have_data_in)
2567                         nscp->SCp.have_data_in++;
2568                     else
2569                         nscp->scsi_done(nscp);
2570                 } else {
2571                     nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2572                     TRACE(("Prevent/allow r. %d rem. drive %d\n",
2573                            nscp->cmnd[4],nscp->cmnd[3]));
2574                     if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2575                         this_cmd = FALSE;
2576                 }
2577                 break;
2578
2579               case RESERVE:
2580               case RELEASE:
2581                 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2582                         "RESERVE" : "RELEASE"));
2583                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2584                     this_cmd = FALSE;
2585                 break;
2586
2587               case READ_6:
2588               case WRITE_6:
2589               case READ_10:
2590               case WRITE_10:
2591               case READ_16:
2592               case WRITE_16:
2593                 if (ha->hdr[t].media_changed) {
2594                     /* return UNIT_ATTENTION */
2595                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2596                              nscp->cmnd[0], t));
2597                     ha->hdr[t].media_changed = FALSE;
2598                     memset((char*)nscp->sense_buffer,0,16);
2599                     nscp->sense_buffer[0] = 0x70;
2600                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2601                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2602                     if (!nscp->SCp.have_data_in)
2603                         nscp->SCp.have_data_in++;
2604                     else
2605                         nscp->scsi_done(nscp);
2606                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2607                     this_cmd = FALSE;
2608                 break;
2609
2610               default:
2611                 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2612                         nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2613                         nscp->cmnd[4],nscp->cmnd[5]));
2614                 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2615                        hanum, nscp->cmnd[0]);
2616                 nscp->result = DID_ABORT << 16;
2617                 if (!nscp->SCp.have_data_in)
2618                     nscp->SCp.have_data_in++;
2619                 else
2620                     nscp->scsi_done(nscp);
2621                 break;
2622             }
2623         }
2624
2625         if (!this_cmd)
2626             break;
2627         if (nscp == ha->req_first)
2628             ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2629         else
2630             pscp->SCp.ptr = nscp->SCp.ptr;
2631         if (!next_cmd)
2632             break;
2633     }
2634
2635     if (ha->cmd_cnt > 0) {
2636         gdth_release_event(hanum);
2637     }
2638
2639     if (!gdth_polling)
2640         spin_unlock_irqrestore(&ha->smp_lock, flags);
2641
2642     if (gdth_polling && ha->cmd_cnt > 0) {
2643         if (!gdth_wait(hanum,cmd_index,POLL_TIMEOUT))
2644             printk("GDT-HA %d: Command %d timed out !\n",
2645                    hanum,cmd_index);
2646     }
2647 }
2648
2649 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
2650                                     char *buffer,ushort count)
2651 {
2652     ushort cpcount,i;
2653     ushort cpsum,cpnow;
2654     struct scatterlist *sl;
2655     gdth_ha_str *ha;
2656     char *address;
2657
2658     cpcount = count<=(ushort)scp->request_bufflen ? count:(ushort)scp->request_bufflen;
2659     ha = HADATA(gdth_ctr_tab[hanum]);
2660
2661     if (scp->use_sg) {
2662         sl = (struct scatterlist *)scp->request_buffer;
2663         for (i=0,cpsum=0; i<scp->use_sg; ++i,++sl) {
2664             unsigned long flags;
2665             cpnow = (ushort)sl->length;
2666             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2667                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2668             if (cpsum+cpnow > cpcount)
2669                 cpnow = cpcount - cpsum;
2670             cpsum += cpnow;
2671             if (!sl->page) {
2672                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2673                        hanum);
2674                 return;
2675             }
2676             local_irq_save(flags);
2677 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2678             address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
2679             memcpy(address,buffer,cpnow);
2680             flush_dcache_page(sl->page);
2681             kunmap_atomic(address, KM_BIO_SRC_IRQ);
2682 #else
2683             address = kmap_atomic(sl->page, KM_BH_IRQ) + sl->offset;
2684             memcpy(address,buffer,cpnow);
2685             flush_dcache_page(sl->page);
2686             kunmap_atomic(address, KM_BH_IRQ);
2687 #endif
2688             local_irq_restore(flags);
2689             if (cpsum == cpcount)
2690                 break;
2691             buffer += cpnow;
2692         }
2693     } else {
2694         TRACE(("copy_internal() count %d\n",cpcount));
2695         memcpy((char*)scp->request_buffer,buffer,cpcount);
2696     }
2697 }
2698
2699 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp)
2700 {
2701     register gdth_ha_str *ha;
2702     unchar t;
2703     gdth_inq_data inq;
2704     gdth_rdcap_data rdc;
2705     gdth_sense_data sd;
2706     gdth_modep_data mpd;
2707
2708     ha = HADATA(gdth_ctr_tab[hanum]);
2709     t  = scp->device->id;
2710     TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2711            scp->cmnd[0],t));
2712
2713     scp->result = DID_OK << 16;
2714     scp->sense_buffer[0] = 0;
2715
2716     switch (scp->cmnd[0]) {
2717       case TEST_UNIT_READY:
2718       case VERIFY:
2719       case START_STOP:
2720         TRACE2(("Test/Verify/Start hdrive %d\n",t));
2721         break;
2722
2723       case INQUIRY:
2724         TRACE2(("Inquiry hdrive %d devtype %d\n",
2725                 t,ha->hdr[t].devtype));
2726         inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2727         /* you can here set all disks to removable, if you want to do
2728            a flush using the ALLOW_MEDIUM_REMOVAL command */
2729         inq.modif_rmb = 0x00;
2730         if ((ha->hdr[t].devtype & 1) ||
2731             (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2732             inq.modif_rmb = 0x80;
2733         inq.version   = 2;
2734         inq.resp_aenc = 2;
2735         inq.add_length= 32;
2736         strcpy(inq.vendor,ha->oem_name);
2737         sprintf(inq.product,"Host Drive  #%02d",t);
2738         strcpy(inq.revision,"   ");
2739         gdth_copy_internal_data(hanum,scp,(char*)&inq,sizeof(gdth_inq_data));
2740         break;
2741
2742       case REQUEST_SENSE:
2743         TRACE2(("Request sense hdrive %d\n",t));
2744         sd.errorcode = 0x70;
2745         sd.segno     = 0x00;
2746         sd.key       = NO_SENSE;
2747         sd.info      = 0;
2748         sd.add_length= 0;
2749         gdth_copy_internal_data(hanum,scp,(char*)&sd,sizeof(gdth_sense_data));
2750         break;
2751
2752       case MODE_SENSE:
2753         TRACE2(("Mode sense hdrive %d\n",t));
2754         memset((char*)&mpd,0,sizeof(gdth_modep_data));
2755         mpd.hd.data_length = sizeof(gdth_modep_data);
2756         mpd.hd.dev_par     = (ha->hdr[t].devtype&2) ? 0x80:0;
2757         mpd.hd.bd_length   = sizeof(mpd.bd);
2758         mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2759         mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2760         mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2761         gdth_copy_internal_data(hanum,scp,(char*)&mpd,sizeof(gdth_modep_data));
2762         break;
2763
2764       case READ_CAPACITY:
2765         TRACE2(("Read capacity hdrive %d\n",t));
2766         if (ha->hdr[t].size > (ulong64)0xffffffff)
2767             rdc.last_block_no = 0xffffffff;
2768         else
2769             rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2770         rdc.block_length  = cpu_to_be32(SECTOR_SIZE);
2771         gdth_copy_internal_data(hanum,scp,(char*)&rdc,sizeof(gdth_rdcap_data));
2772         break;
2773
2774       case SERVICE_ACTION_IN:
2775         if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2776             (ha->cache_feat & GDT_64BIT)) {
2777             gdth_rdcap16_data rdc16;
2778
2779             TRACE2(("Read capacity (16) hdrive %d\n",t));
2780             rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2781             rdc16.block_length  = cpu_to_be32(SECTOR_SIZE);
2782             gdth_copy_internal_data(hanum,scp,(char*)&rdc16,sizeof(gdth_rdcap16_data));
2783         } else {
2784             scp->result = DID_ABORT << 16;
2785         }
2786         break;
2787
2788       default:
2789         TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2790         break;
2791     }
2792
2793     if (!scp->SCp.have_data_in)
2794         scp->SCp.have_data_in++;
2795     else
2796         return 1;
2797
2798     return 0;
2799 }
2800
2801 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
2802 {
2803     register gdth_ha_str *ha;
2804     register gdth_cmd_str *cmdp;
2805     struct scatterlist *sl;
2806     ulong32 cnt, blockcnt;
2807     ulong64 no, blockno;
2808     dma_addr_t phys_addr;
2809     int i, cmd_index, read_write, sgcnt, mode64;
2810     struct page *page;
2811     ulong offset;
2812
2813     ha = HADATA(gdth_ctr_tab[hanum]);
2814     cmdp = ha->pccb;
2815     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2816                  scp->cmnd[0],scp->cmd_len,hdrive));
2817
2818     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2819         return 0;
2820
2821     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2822     /* test for READ_16, WRITE_16 if !mode64 ? ---
2823        not required, should not occur due to error return on
2824        READ_CAPACITY_16 */
2825
2826     cmdp->Service = CACHESERVICE;
2827     cmdp->RequestBuffer = scp;
2828     /* search free command index */
2829     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2830         TRACE(("GDT: No free command index found\n"));
2831         return 0;
2832     }
2833     /* if it's the first command, set command semaphore */
2834     if (ha->cmd_cnt == 0)
2835         gdth_set_sema0(hanum);
2836
2837     /* fill command */
2838     read_write = 0;
2839     if (scp->SCp.sent_command != -1)
2840         cmdp->OpCode = scp->SCp.sent_command;   /* special cache cmd. */
2841     else if (scp->cmnd[0] == RESERVE)
2842         cmdp->OpCode = GDT_RESERVE_DRV;
2843     else if (scp->cmnd[0] == RELEASE)
2844         cmdp->OpCode = GDT_RELEASE_DRV;
2845     else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2846         if (scp->cmnd[4] & 1)                   /* prevent ? */
2847             cmdp->OpCode = GDT_MOUNT;
2848         else if (scp->cmnd[3] & 1)              /* removable drive ? */
2849             cmdp->OpCode = GDT_UNMOUNT;
2850         else
2851             cmdp->OpCode = GDT_FLUSH;
2852     } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2853                scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2854     ) {
2855         read_write = 1;
2856         if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2857                                    (ha->cache_feat & GDT_WR_THROUGH)))
2858             cmdp->OpCode = GDT_WRITE_THR;
2859         else
2860             cmdp->OpCode = GDT_WRITE;
2861     } else {
2862         read_write = 2;
2863         cmdp->OpCode = GDT_READ;
2864     }
2865
2866     cmdp->BoardNode = LOCALBOARD;
2867     if (mode64) {
2868         cmdp->u.cache64.DeviceNo = hdrive;
2869         cmdp->u.cache64.BlockNo  = 1;
2870         cmdp->u.cache64.sg_canz  = 0;
2871     } else {
2872         cmdp->u.cache.DeviceNo = hdrive;
2873         cmdp->u.cache.BlockNo  = 1;
2874         cmdp->u.cache.sg_canz  = 0;
2875     }
2876
2877     if (read_write) {
2878         if (scp->cmd_len == 16) {
2879             memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2880             blockno = be64_to_cpu(no);
2881             memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2882             blockcnt = be32_to_cpu(cnt);
2883         } else if (scp->cmd_len == 10) {
2884             memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2885             blockno = be32_to_cpu(no);
2886             memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2887             blockcnt = be16_to_cpu(cnt);
2888         } else {
2889             memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2890             blockno = be32_to_cpu(no) & 0x001fffffUL;
2891             blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2892         }
2893         if (mode64) {
2894             cmdp->u.cache64.BlockNo = blockno;
2895             cmdp->u.cache64.BlockCnt = blockcnt;
2896         } else {
2897             cmdp->u.cache.BlockNo = (ulong32)blockno;
2898             cmdp->u.cache.BlockCnt = blockcnt;
2899         }
2900
2901         if (scp->use_sg) {
2902             sl = (struct scatterlist *)scp->request_buffer;
2903             sgcnt = scp->use_sg;
2904             scp->SCp.Status = GDTH_MAP_SG;
2905             scp->SCp.Message = (read_write == 1 ?
2906                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2907             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2908             if (mode64) {
2909                 cmdp->u.cache64.DestAddr= (ulong64)-1;
2910                 cmdp->u.cache64.sg_canz = sgcnt;
2911                 for (i=0; i<sgcnt; ++i,++sl) {
2912                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2913 #ifdef GDTH_DMA_STATISTICS
2914                     if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2915                         ha->dma64_cnt++;
2916                     else
2917                         ha->dma32_cnt++;
2918 #endif
2919                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2920                 }
2921             } else {
2922                 cmdp->u.cache.DestAddr= 0xffffffff;
2923                 cmdp->u.cache.sg_canz = sgcnt;
2924                 for (i=0; i<sgcnt; ++i,++sl) {
2925                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2926 #ifdef GDTH_DMA_STATISTICS
2927                     ha->dma32_cnt++;
2928 #endif
2929                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2930                 }
2931             }
2932
2933 #ifdef GDTH_STATISTICS
2934             if (max_sg < (ulong32)sgcnt) {
2935                 max_sg = (ulong32)sgcnt;
2936                 TRACE3(("GDT: max_sg = %d\n",max_sg));
2937             }
2938 #endif
2939
2940         } else if (scp->request_bufflen) {
2941             scp->SCp.Status = GDTH_MAP_SINGLE;
2942             scp->SCp.Message = (read_write == 1 ?
2943                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2944             page = virt_to_page(scp->request_buffer);
2945             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
2946             phys_addr = pci_map_page(ha->pdev,page,offset,
2947                                      scp->request_bufflen,scp->SCp.Message);
2948             scp->SCp.dma_handle = phys_addr;
2949             if (mode64) {
2950                 if (ha->cache_feat & SCATTER_GATHER) {
2951                     cmdp->u.cache64.DestAddr = (ulong64)-1;
2952                     cmdp->u.cache64.sg_canz = 1;
2953                     cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr;
2954                     cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen;
2955                     cmdp->u.cache64.sg_lst[1].sg_len = 0;
2956                 } else {
2957                     cmdp->u.cache64.DestAddr  = phys_addr;
2958                     cmdp->u.cache64.sg_canz= 0;
2959                 }
2960             } else {
2961                 if (ha->cache_feat & SCATTER_GATHER) {
2962                     cmdp->u.cache.DestAddr = 0xffffffff;
2963                     cmdp->u.cache.sg_canz = 1;
2964                     cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr;
2965                     cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen;
2966                     cmdp->u.cache.sg_lst[1].sg_len = 0;
2967                 } else {
2968                     cmdp->u.cache.DestAddr  = phys_addr;
2969                     cmdp->u.cache.sg_canz= 0;
2970                 }
2971             }
2972         }
2973     }
2974     /* evaluate command size, check space */
2975     if (mode64) {
2976         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2977                cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2978                cmdp->u.cache64.sg_lst[0].sg_ptr,
2979                cmdp->u.cache64.sg_lst[0].sg_len));
2980         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2981                cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2982         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2983             (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2984     } else {
2985         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2986                cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2987                cmdp->u.cache.sg_lst[0].sg_ptr,
2988                cmdp->u.cache.sg_lst[0].sg_len));
2989         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2990                cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2991         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2992             (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2993     }
2994     if (ha->cmd_len & 3)
2995         ha->cmd_len += (4 - (ha->cmd_len & 3));
2996
2997     if (ha->cmd_cnt > 0) {
2998         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2999             ha->ic_all_size) {
3000             TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
3001             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3002             return 0;
3003         }
3004     }
3005
3006     /* copy command */
3007     gdth_copy_command(hanum);
3008     return cmd_index;
3009 }
3010
3011 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b)
3012 {
3013     register gdth_ha_str *ha;
3014     register gdth_cmd_str *cmdp;
3015     struct scatterlist *sl;
3016     ushort i;
3017     dma_addr_t phys_addr, sense_paddr;
3018     int cmd_index, sgcnt, mode64;
3019     unchar t,l;
3020     struct page *page;
3021     ulong offset;
3022
3023     ha = HADATA(gdth_ctr_tab[hanum]);
3024     t = scp->device->id;
3025     l = scp->device->lun;
3026     cmdp = ha->pccb;
3027     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
3028            scp->cmnd[0],b,t,l));
3029
3030     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3031         return 0;
3032
3033     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
3034
3035     cmdp->Service = SCSIRAWSERVICE;
3036     cmdp->RequestBuffer = scp;
3037     /* search free command index */
3038     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3039         TRACE(("GDT: No free command index found\n"));
3040         return 0;
3041     }
3042     /* if it's the first command, set command semaphore */
3043     if (ha->cmd_cnt == 0)
3044         gdth_set_sema0(hanum);
3045
3046     /* fill command */
3047     if (scp->SCp.sent_command != -1) {
3048         cmdp->OpCode           = scp->SCp.sent_command; /* special raw cmd. */
3049         cmdp->BoardNode        = LOCALBOARD;
3050         if (mode64) {
3051             cmdp->u.raw64.direction = (scp->SCp.phase >> 8);
3052             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3053                     cmdp->OpCode, cmdp->u.raw64.direction));
3054             /* evaluate command size */
3055             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
3056         } else {
3057             cmdp->u.raw.direction  = (scp->SCp.phase >> 8);
3058             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3059                     cmdp->OpCode, cmdp->u.raw.direction));
3060             /* evaluate command size */
3061             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
3062         }
3063
3064     } else {
3065         page = virt_to_page(scp->sense_buffer);
3066         offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
3067         sense_paddr = pci_map_page(ha->pdev,page,offset,
3068                                    16,PCI_DMA_FROMDEVICE);
3069         *(ulong32 *)&scp->SCp.buffer = (ulong32)sense_paddr;
3070         /* high part, if 64bit */
3071         *(ulong32 *)&scp->host_scribble = (ulong32)((ulong64)sense_paddr >> 32);
3072         cmdp->OpCode           = GDT_WRITE;             /* always */
3073         cmdp->BoardNode        = LOCALBOARD;
3074         if (mode64) {
3075             cmdp->u.raw64.reserved   = 0;
3076             cmdp->u.raw64.mdisc_time = 0;
3077             cmdp->u.raw64.mcon_time  = 0;
3078             cmdp->u.raw64.clen       = scp->cmd_len;
3079             cmdp->u.raw64.target     = t;
3080             cmdp->u.raw64.lun        = l;
3081             cmdp->u.raw64.bus        = b;
3082             cmdp->u.raw64.priority   = 0;
3083             cmdp->u.raw64.sdlen      = scp->request_bufflen;
3084             cmdp->u.raw64.sense_len  = 16;
3085             cmdp->u.raw64.sense_data = sense_paddr;
3086             cmdp->u.raw64.direction  =
3087                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3088             memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
3089             cmdp->u.raw64.sg_ranz    = 0;
3090         } else {
3091             cmdp->u.raw.reserved   = 0;
3092             cmdp->u.raw.mdisc_time = 0;
3093             cmdp->u.raw.mcon_time  = 0;
3094             cmdp->u.raw.clen       = scp->cmd_len;
3095             cmdp->u.raw.target     = t;
3096             cmdp->u.raw.lun        = l;
3097             cmdp->u.raw.bus        = b;
3098             cmdp->u.raw.priority   = 0;
3099             cmdp->u.raw.link_p     = 0;
3100             cmdp->u.raw.sdlen      = scp->request_bufflen;
3101             cmdp->u.raw.sense_len  = 16;
3102             cmdp->u.raw.sense_data = sense_paddr;
3103             cmdp->u.raw.direction  =
3104                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3105             memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
3106             cmdp->u.raw.sg_ranz    = 0;
3107         }
3108
3109         if (scp->use_sg) {
3110             sl = (struct scatterlist *)scp->request_buffer;
3111             sgcnt = scp->use_sg;
3112             scp->SCp.Status = GDTH_MAP_SG;
3113             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3114             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
3115             if (mode64) {
3116                 cmdp->u.raw64.sdata = (ulong64)-1;
3117                 cmdp->u.raw64.sg_ranz = sgcnt;
3118                 for (i=0; i<sgcnt; ++i,++sl) {
3119                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
3120 #ifdef GDTH_DMA_STATISTICS
3121                     if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
3122                         ha->dma64_cnt++;
3123                     else
3124                         ha->dma32_cnt++;
3125 #endif
3126                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
3127                 }
3128             } else {
3129                 cmdp->u.raw.sdata = 0xffffffff;
3130                 cmdp->u.raw.sg_ranz = sgcnt;
3131                 for (i=0; i<sgcnt; ++i,++sl) {
3132                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
3133 #ifdef GDTH_DMA_STATISTICS
3134                     ha->dma32_cnt++;
3135 #endif
3136                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
3137                 }
3138             }
3139
3140 #ifdef GDTH_STATISTICS
3141             if (max_sg < sgcnt) {
3142                 max_sg = sgcnt;
3143                 TRACE3(("GDT: max_sg = %d\n",sgcnt));
3144             }
3145 #endif
3146
3147         } else if (scp->request_bufflen) {
3148             scp->SCp.Status = GDTH_MAP_SINGLE;
3149             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3150             page = virt_to_page(scp->request_buffer);
3151             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3152             phys_addr = pci_map_page(ha->pdev,page,offset,
3153                                      scp->request_bufflen,scp->SCp.Message);
3154             scp->SCp.dma_handle = phys_addr;
3155
3156             if (mode64) {
3157                 if (ha->raw_feat & SCATTER_GATHER) {
3158                     cmdp->u.raw64.sdata  = (ulong64)-1;
3159                     cmdp->u.raw64.sg_ranz= 1;
3160                     cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr;
3161                     cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen;
3162                     cmdp->u.raw64.sg_lst[1].sg_len = 0;
3163                 } else {
3164                     cmdp->u.raw64.sdata  = phys_addr;
3165                     cmdp->u.raw64.sg_ranz= 0;
3166                 }
3167             } else {
3168                 if (ha->raw_feat & SCATTER_GATHER) {
3169                     cmdp->u.raw.sdata  = 0xffffffff;
3170                     cmdp->u.raw.sg_ranz= 1;
3171                     cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr;
3172                     cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen;
3173                     cmdp->u.raw.sg_lst[1].sg_len = 0;
3174                 } else {
3175                     cmdp->u.raw.sdata  = phys_addr;
3176                     cmdp->u.raw.sg_ranz= 0;
3177                 }
3178             }
3179         }
3180         if (mode64) {
3181             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3182                    cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
3183                    cmdp->u.raw64.sg_lst[0].sg_ptr,
3184                    cmdp->u.raw64.sg_lst[0].sg_len));
3185             /* evaluate command size */
3186             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
3187                 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
3188         } else {
3189             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3190                    cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
3191                    cmdp->u.raw.sg_lst[0].sg_ptr,
3192                    cmdp->u.raw.sg_lst[0].sg_len));
3193             /* evaluate command size */
3194             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
3195                 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
3196         }
3197     }
3198     /* check space */
3199     if (ha->cmd_len & 3)
3200         ha->cmd_len += (4 - (ha->cmd_len & 3));
3201
3202     if (ha->cmd_cnt > 0) {
3203         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3204             ha->ic_all_size) {
3205             TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
3206             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3207             return 0;
3208         }
3209     }
3210
3211     /* copy command */
3212     gdth_copy_command(hanum);
3213     return cmd_index;
3214 }
3215
3216 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp)
3217 {
3218     register gdth_ha_str *ha;
3219     register gdth_cmd_str *cmdp;
3220     int cmd_index;
3221
3222     ha  = HADATA(gdth_ctr_tab[hanum]);
3223     cmdp= ha->pccb;
3224     TRACE2(("gdth_special_cmd(): "));
3225
3226     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3227         return 0;
3228
3229     memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str));
3230     cmdp->RequestBuffer = scp;
3231
3232     /* search free command index */
3233     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3234         TRACE(("GDT: No free command index found\n"));
3235         return 0;
3236     }
3237
3238     /* if it's the first command, set command semaphore */
3239     if (ha->cmd_cnt == 0)
3240        gdth_set_sema0(hanum);
3241
3242     /* evaluate command size, check space */
3243     if (cmdp->OpCode == GDT_IOCTL) {
3244         TRACE2(("IOCTL\n"));
3245         ha->cmd_len =
3246             GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
3247     } else if (cmdp->Service == CACHESERVICE) {
3248         TRACE2(("cache command %d\n",cmdp->OpCode));
3249         if (ha->cache_feat & GDT_64BIT)
3250             ha->cmd_len =
3251                 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
3252         else
3253             ha->cmd_len =
3254                 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
3255     } else if (cmdp->Service == SCSIRAWSERVICE) {
3256         TRACE2(("raw command %d\n",cmdp->OpCode));
3257         if (ha->raw_feat & GDT_64BIT)
3258             ha->cmd_len =
3259                 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
3260         else
3261             ha->cmd_len =
3262                 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
3263     }
3264
3265     if (ha->cmd_len & 3)
3266         ha->cmd_len += (4 - (ha->cmd_len & 3));
3267
3268     if (ha->cmd_cnt > 0) {
3269         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3270             ha->ic_all_size) {
3271             TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
3272             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3273             return 0;
3274         }
3275     }
3276
3277     /* copy command */
3278     gdth_copy_command(hanum);
3279     return cmd_index;
3280 }
3281
3282
3283 /* Controller event handling functions */
3284 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
3285                                       ushort idx, gdth_evt_data *evt)
3286 {
3287     gdth_evt_str *e;
3288     struct timeval tv;
3289
3290     /* no GDTH_LOCK_HA() ! */
3291     TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
3292     if (source == 0)                        /* no source -> no event */
3293         return NULL;
3294
3295     if (ebuffer[elastidx].event_source == source &&
3296         ebuffer[elastidx].event_idx == idx &&
3297         ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
3298             !memcmp((char *)&ebuffer[elastidx].event_data.eu,
3299             (char *)&evt->eu, evt->size)) ||
3300         (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
3301             !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
3302             (char *)&evt->event_string)))) {
3303         e = &ebuffer[elastidx];
3304         do_gettimeofday(&tv);
3305         e->last_stamp = tv.tv_sec;
3306         ++e->same_count;
3307     } else {
3308         if (ebuffer[elastidx].event_source != 0) {  /* entry not free ? */
3309             ++elastidx;
3310             if (elastidx == MAX_EVENTS)
3311                 elastidx = 0;
3312             if (elastidx == eoldidx) {              /* reached mark ? */
3313                 ++eoldidx;
3314                 if (eoldidx == MAX_EVENTS)
3315                     eoldidx = 0;
3316             }
3317         }
3318         e = &ebuffer[elastidx];
3319         e->event_source = source;
3320         e->event_idx = idx;
3321         do_gettimeofday(&tv);
3322         e->first_stamp = e->last_stamp = tv.tv_sec;
3323         e->same_count = 1;
3324         e->event_data = *evt;
3325         e->application = 0;
3326     }
3327     return e;
3328 }
3329
3330 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
3331 {
3332     gdth_evt_str *e;
3333     int eindex;
3334     ulong flags;
3335
3336     TRACE2(("gdth_read_event() handle %d\n", handle));
3337     spin_lock_irqsave(&ha->smp_lock, flags);
3338     if (handle == -1)
3339         eindex = eoldidx;
3340     else
3341         eindex = handle;
3342     estr->event_source = 0;
3343
3344     if (eindex >= MAX_EVENTS) {
3345         spin_unlock_irqrestore(&ha->smp_lock, flags);
3346         return eindex;
3347     }
3348     e = &ebuffer[eindex];
3349     if (e->event_source != 0) {
3350         if (eindex != elastidx) {
3351             if (++eindex == MAX_EVENTS)
3352                 eindex = 0;
3353         } else {
3354             eindex = -1;
3355         }
3356         memcpy(estr, e, sizeof(gdth_evt_str));
3357     }
3358     spin_unlock_irqrestore(&ha->smp_lock, flags);
3359     return eindex;
3360 }
3361
3362 static void gdth_readapp_event(gdth_ha_str *ha,
3363                                unchar application, gdth_evt_str *estr)
3364 {
3365     gdth_evt_str *e;
3366     int eindex;
3367     ulong flags;
3368     unchar found = FALSE;
3369
3370     TRACE2(("gdth_readapp_event() app. %d\n", application));
3371     spin_lock_irqsave(&ha->smp_lock, flags);
3372     eindex = eoldidx;
3373     for (;;) {
3374         e = &ebuffer[eindex];
3375         if (e->event_source == 0)
3376             break;
3377         if ((e->application & application) == 0) {
3378             e->application |= application;
3379             found = TRUE;
3380             break;
3381         }
3382         if (eindex == elastidx)
3383             break;
3384         if (++eindex == MAX_EVENTS)
3385             eindex = 0;
3386     }
3387     if (found)
3388         memcpy(estr, e, sizeof(gdth_evt_str));
3389     else
3390         estr->event_source = 0;
3391     spin_unlock_irqrestore(&ha->smp_lock, flags);
3392 }
3393
3394 static void gdth_clear_events(void)
3395 {
3396     TRACE(("gdth_clear_events()"));
3397
3398     eoldidx = elastidx = 0;
3399     ebuffer[0].event_source = 0;
3400 }
3401
3402
3403 /* SCSI interface functions */
3404
3405 static irqreturn_t gdth_interrupt(int irq,void *dev_id)
3406 {
3407     gdth_ha_str *ha2 = (gdth_ha_str *)dev_id;
3408     register gdth_ha_str *ha;
3409     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
3410     gdt6_dpram_str __iomem *dp6_ptr;
3411     gdt2_dpram_str __iomem *dp2_ptr;
3412     Scsi_Cmnd *scp;
3413     int hanum, rval, i;
3414     unchar IStatus;
3415     ushort Service;
3416     ulong flags = 0;
3417 #ifdef INT_COAL
3418     int coalesced = FALSE;
3419     int next = FALSE;
3420     gdth_coal_status *pcs = NULL;
3421     int act_int_coal = 0;
3422 #endif
3423
3424     TRACE(("gdth_interrupt() IRQ %d\n",irq));
3425
3426     /* if polling and not from gdth_wait() -> return */
3427     if (gdth_polling) {
3428         if (!gdth_from_wait) {
3429             return IRQ_HANDLED;
3430         }
3431     }
3432
3433     if (!gdth_polling)
3434         spin_lock_irqsave(&ha2->smp_lock, flags);
3435     wait_index = 0;
3436
3437     /* search controller */
3438     if ((hanum = gdth_get_status(&IStatus,irq)) == -1) {
3439         /* spurious interrupt */
3440         if (!gdth_polling)
3441             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3442             return IRQ_HANDLED;
3443     }
3444     ha = HADATA(gdth_ctr_tab[hanum]);
3445
3446 #ifdef GDTH_STATISTICS
3447     ++act_ints;
3448 #endif
3449
3450 #ifdef INT_COAL
3451     /* See if the fw is returning coalesced status */
3452     if (IStatus == COALINDEX) {
3453         /* Coalesced status.  Setup the initial status
3454            buffer pointer and flags */
3455         pcs = ha->coal_stat;
3456         coalesced = TRUE;
3457         next = TRUE;
3458     }
3459
3460     do {
3461         if (coalesced) {
3462             /* For coalesced requests all status
3463                information is found in the status buffer */
3464             IStatus = (unchar)(pcs->status & 0xff);
3465         }
3466 #endif
3467
3468         if (ha->type == GDT_EISA) {
3469             if (IStatus & 0x80) {                       /* error flag */
3470                 IStatus &= ~0x80;
3471                 ha->status = inw(ha->bmic + MAILBOXREG+8);
3472                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3473             } else                                      /* no error */
3474                 ha->status = S_OK;
3475             ha->info = inl(ha->bmic + MAILBOXREG+12);
3476             ha->service = inw(ha->bmic + MAILBOXREG+10);
3477             ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3478
3479             outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
3480             outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
3481         } else if (ha->type == GDT_ISA) {
3482             dp2_ptr = ha->brd;
3483             if (IStatus & 0x80) {                       /* error flag */
3484                 IStatus &= ~0x80;
3485                 ha->status = gdth_readw(&dp2_ptr->u.ic.Status);
3486                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3487             } else                                      /* no error */
3488                 ha->status = S_OK;
3489             ha->info = gdth_readl(&dp2_ptr->u.ic.Info[0]);
3490             ha->service = gdth_readw(&dp2_ptr->u.ic.Service);
3491             ha->info2 = gdth_readl(&dp2_ptr->u.ic.Info[1]);
3492
3493             gdth_writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3494             gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3495             gdth_writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
3496         } else if (ha->type == GDT_PCI) {
3497             dp6_ptr = ha->brd;
3498             if (IStatus & 0x80) {                       /* error flag */
3499                 IStatus &= ~0x80;
3500                 ha->status = gdth_readw(&dp6_ptr->u.ic.Status);
3501                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3502             } else                                      /* no error */
3503                 ha->status = S_OK;
3504             ha->info = gdth_readl(&dp6_ptr->u.ic.Info[0]);
3505             ha->service = gdth_readw(&dp6_ptr->u.ic.Service);
3506             ha->info2 = gdth_readl(&dp6_ptr->u.ic.Info[1]);
3507
3508             gdth_writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3509             gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3510             gdth_writeb(0, &dp6_ptr->io.Sema1);     /* reset status semaphore */
3511         } else if (ha->type == GDT_PCINEW) {
3512             if (IStatus & 0x80) {                       /* error flag */
3513                 IStatus &= ~0x80;
3514                 ha->status = inw(PTR2USHORT(&ha->plx->status));
3515                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3516             } else
3517                 ha->status = S_OK;
3518             ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3519             ha->service = inw(PTR2USHORT(&ha->plx->service));
3520             ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3521
3522             outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3523             outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3524         } else if (ha->type == GDT_PCIMPR) {
3525             dp6m_ptr = ha->brd;
3526             if (IStatus & 0x80) {                       /* error flag */
3527                 IStatus &= ~0x80;
3528 #ifdef INT_COAL
3529                 if (coalesced)
3530                     ha->status = pcs->ext_status & 0xffff;
3531                 else
3532 #endif
3533                     ha->status = gdth_readw(&dp6m_ptr->i960r.status);
3534                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3535             } else                                      /* no error */
3536                 ha->status = S_OK;
3537 #ifdef INT_COAL
3538             /* get information */
3539             if (coalesced) {
3540                 ha->info = pcs->info0;
3541                 ha->info2 = pcs->info1;
3542                 ha->service = (pcs->ext_status >> 16) & 0xffff;
3543             } else
3544 #endif
3545             {
3546                 ha->info = gdth_readl(&dp6m_ptr->i960r.info[0]);
3547                 ha->service = gdth_readw(&dp6m_ptr->i960r.service);
3548                 ha->info2 = gdth_readl(&dp6m_ptr->i960r.info[1]);
3549             }
3550             /* event string */
3551             if (IStatus == ASYNCINDEX) {
3552                 if (ha->service != SCREENSERVICE &&
3553                     (ha->fw_vers & 0xff) >= 0x1a) {
3554                     ha->dvr.severity = gdth_readb
3555                         (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3556                     for (i = 0; i < 256; ++i) {
3557                         ha->dvr.event_string[i] = gdth_readb
3558                             (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3559                         if (ha->dvr.event_string[i] == 0)
3560                             break;
3561                     }
3562                 }
3563             }
3564 #ifdef INT_COAL
3565             /* Make sure that non coalesced interrupts get cleared
3566                before being handled by gdth_async_event/gdth_sync_event */
3567             if (!coalesced)
3568 #endif
3569             {
3570                 gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3571                 gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3572             }
3573         } else {
3574             TRACE2(("gdth_interrupt() unknown controller type\n"));
3575             if (!gdth_polling)
3576                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3577             return IRQ_HANDLED;
3578         }
3579
3580         TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3581                IStatus,ha->status,ha->info));
3582
3583         if (gdth_from_wait) {
3584             wait_hanum = hanum;
3585             wait_index = (int)IStatus;
3586         }
3587
3588         if (IStatus == ASYNCINDEX) {
3589             TRACE2(("gdth_interrupt() async. event\n"));
3590             gdth_async_event(hanum);
3591             if (!gdth_polling)
3592                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3593             gdth_next(hanum);
3594             return IRQ_HANDLED;
3595         }
3596
3597         if (IStatus == SPEZINDEX) {
3598             TRACE2(("Service unknown or not initialized !\n"));
3599             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3600             ha->dvr.eu.driver.ionode = hanum;
3601             gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3602             if (!gdth_polling)
3603                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3604             return IRQ_HANDLED;
3605         }
3606         scp     = ha->cmd_tab[IStatus-2].cmnd;
3607         Service = ha->cmd_tab[IStatus-2].service;
3608         ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3609         if (scp == UNUSED_CMND) {
3610             TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3611             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3612             ha->dvr.eu.driver.ionode = hanum;
3613             ha->dvr.eu.driver.index = IStatus;
3614             gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3615             if (!gdth_polling)
3616                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3617             return IRQ_HANDLED;
3618         }
3619         if (scp == INTERNAL_CMND) {
3620             TRACE(("gdth_interrupt() answer to internal command\n"));
3621             if (!gdth_polling)
3622                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3623             return IRQ_HANDLED;
3624         }
3625
3626         TRACE(("gdth_interrupt() sync. status\n"));
3627         rval = gdth_sync_event(hanum,Service,IStatus,scp);
3628         if (!gdth_polling)
3629             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3630         if (rval == 2) {
3631             gdth_putq(hanum,scp,scp->SCp.this_residual);
3632         } else if (rval == 1) {
3633             scp->scsi_done(scp);
3634         }
3635
3636 #ifdef INT_COAL
3637         if (coalesced) {
3638             /* go to the next status in the status buffer */
3639             ++pcs;
3640 #ifdef GDTH_STATISTICS
3641             ++act_int_coal;
3642             if (act_int_coal > max_int_coal) {
3643                 max_int_coal = act_int_coal;
3644                 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3645             }
3646 #endif
3647             /* see if there is another status */
3648             if (pcs->status == 0)
3649                 /* Stop the coalesce loop */
3650                 next = FALSE;
3651         }
3652     } while (next);
3653
3654     /* coalescing only for new GDT_PCIMPR controllers available */
3655     if (ha->type == GDT_PCIMPR && coalesced) {
3656         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3657         gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3658     }
3659 #endif
3660
3661     gdth_next(hanum);
3662     return IRQ_HANDLED;
3663 }
3664
3665 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
3666 {
3667     register gdth_ha_str *ha;
3668     gdth_msg_str *msg;
3669     gdth_cmd_str *cmdp;
3670     unchar b, t;
3671
3672     ha   = HADATA(gdth_ctr_tab[hanum]);
3673     cmdp = ha->pccb;
3674     TRACE(("gdth_sync_event() serv %d status %d\n",
3675            service,ha->status));
3676
3677     if (service == SCREENSERVICE) {
3678         msg  = ha->pmsg;
3679         TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3680                msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3681         if (msg->msg_len > MSGLEN+1)
3682             msg->msg_len = MSGLEN+1;
3683         if (msg->msg_len)
3684             if (!(msg->msg_answer && msg->msg_ext)) {
3685                 msg->msg_text[msg->msg_len] = '\0';
3686                 printk("%s",msg->msg_text);
3687             }
3688
3689         if (msg->msg_ext && !msg->msg_answer) {
3690             while (gdth_test_busy(hanum))
3691                 gdth_delay(0);
3692             cmdp->Service       = SCREENSERVICE;
3693             cmdp->RequestBuffer = SCREEN_CMND;
3694             gdth_get_cmd_index(hanum);
3695             gdth_set_sema0(hanum);
3696             cmdp->OpCode        = GDT_READ;
3697             cmdp->BoardNode     = LOCALBOARD;
3698             cmdp->u.screen.reserved  = 0;
3699             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3700             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3701             ha->cmd_offs_dpmem = 0;
3702             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3703                 + sizeof(ulong64);
3704             ha->cmd_cnt = 0;
3705             gdth_copy_command(hanum);
3706             gdth_release_event(hanum);
3707             return 0;
3708         }
3709
3710         if (msg->msg_answer && msg->msg_alen) {
3711             /* default answers (getchar() not possible) */
3712             if (msg->msg_alen == 1) {
3713                 msg->msg_alen = 0;
3714                 msg->msg_len = 1;
3715                 msg->msg_text[0] = 0;
3716             } else {
3717                 msg->msg_alen -= 2;
3718                 msg->msg_len = 2;
3719                 msg->msg_text[0] = 1;
3720                 msg->msg_text[1] = 0;
3721             }
3722             msg->msg_ext    = 0;
3723             msg->msg_answer = 0;
3724             while (gdth_test_busy(hanum))
3725                 gdth_delay(0);
3726             cmdp->Service       = SCREENSERVICE;
3727             cmdp->RequestBuffer = SCREEN_CMND;
3728             gdth_get_cmd_index(hanum);
3729             gdth_set_sema0(hanum);
3730             cmdp->OpCode        = GDT_WRITE;
3731             cmdp->BoardNode     = LOCALBOARD;
3732             cmdp->u.screen.reserved  = 0;
3733             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3734             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3735             ha->cmd_offs_dpmem = 0;
3736             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3737                 + sizeof(ulong64);
3738             ha->cmd_cnt = 0;
3739             gdth_copy_command(hanum);
3740             gdth_release_event(hanum);
3741             return 0;
3742         }
3743         printk("\n");
3744
3745     } else {
3746         b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
3747         t = scp->device->id;
3748         if (scp->SCp.sent_command == -1 && b != ha->virt_bus) {
3749             ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3750         }
3751         /* cache or raw service */
3752         if (ha->status == S_BSY) {
3753             TRACE2(("Controller busy -> retry !\n"));
3754             if (scp->SCp.sent_command == GDT_MOUNT)
3755                 scp->SCp.sent_command = GDT_CLUST_INFO;
3756             /* retry */
3757             return 2;
3758         }
3759         if (scp->SCp.Status == GDTH_MAP_SG)
3760             pci_unmap_sg(ha->pdev,scp->request_buffer,
3761                          scp->use_sg,scp->SCp.Message);
3762         else if (scp->SCp.Status == GDTH_MAP_SINGLE)
3763             pci_unmap_page(ha->pdev,scp->SCp.dma_handle,
3764                            scp->request_bufflen,scp->SCp.Message);
3765         if (scp->SCp.buffer) {
3766             dma_addr_t addr;
3767             addr = (dma_addr_t)*(ulong32 *)&scp->SCp.buffer;
3768             if (scp->host_scribble)
3769                 addr += (dma_addr_t)
3770                     ((ulong64)(*(ulong32 *)&scp->host_scribble) << 32);
3771             pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE);
3772         }
3773
3774         if (ha->status == S_OK) {
3775             scp->SCp.Status = S_OK;
3776             scp->SCp.Message = ha->info;
3777             if (scp->SCp.sent_command != -1) {
3778                 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3779                         scp->SCp.sent_command));
3780                 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3781                 if (scp->SCp.sent_command == GDT_CLUST_INFO) {
3782                     ha->hdr[t].cluster_type = (unchar)ha->info;
3783                     if (!(ha->hdr[t].cluster_type &
3784                         CLUSTER_MOUNTED)) {
3785                         /* NOT MOUNTED -> MOUNT */
3786                         scp->SCp.sent_command = GDT_MOUNT;
3787                         if (ha->hdr[t].cluster_type &
3788                             CLUSTER_RESERVED) {
3789                             /* cluster drive RESERVED (on the other node) */
3790                             scp->SCp.phase = -2;      /* reservation conflict */
3791                         }
3792                     } else {
3793                         scp->SCp.sent_command = -1;
3794                     }
3795                 } else {
3796                     if (scp->SCp.sent_command == GDT_MOUNT) {
3797                         ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3798                         ha->hdr[t].media_changed = TRUE;
3799                     } else if (scp->SCp.sent_command == GDT_UNMOUNT) {
3800                         ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3801                         ha->hdr[t].media_changed = TRUE;
3802                     }
3803                     scp->SCp.sent_command = -1;
3804                 }
3805                 /* retry */
3806                 scp->SCp.this_residual = HIGH_PRI;
3807                 return 2;
3808             } else {
3809                 /* RESERVE/RELEASE ? */
3810                 if (scp->cmnd[0] == RESERVE) {
3811                     ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3812                 } else if (scp->cmnd[0] == RELEASE) {
3813                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3814                 }
3815                 scp->result = DID_OK << 16;
3816                 scp->sense_buffer[0] = 0;
3817             }
3818         } else {
3819             scp->SCp.Status = ha->status;
3820             scp->SCp.Message = ha->info;
3821
3822             if (scp->SCp.sent_command != -1) {
3823                 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3824                         scp->SCp.sent_command, ha->status));
3825                 if (scp->SCp.sent_command == GDT_SCAN_START ||
3826                     scp->SCp.sent_command == GDT_SCAN_END) {
3827                     scp->SCp.sent_command = -1;
3828                     /* retry */
3829                     scp->SCp.this_residual = HIGH_PRI;
3830                     return 2;
3831                 }
3832                 memset((char*)scp->sense_buffer,0,16);
3833                 scp->sense_buffer[0] = 0x70;
3834                 scp->sense_buffer[2] = NOT_READY;
3835                 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3836             } else if (service == CACHESERVICE) {
3837                 if (ha->status == S_CACHE_UNKNOWN &&
3838                     (ha->hdr[t].cluster_type &
3839                      CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3840                     /* bus reset -> force GDT_CLUST_INFO */
3841                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3842                 }
3843                 memset((char*)scp->sense_buffer,0,16);
3844                 if (ha->status == (ushort)S_CACHE_RESERV) {
3845                     scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3846                 } else {
3847                     scp->sense_buffer[0] = 0x70;
3848                     scp->sense_buffer[2] = NOT_READY;
3849                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3850                 }
3851                 if (scp->done != gdth_scsi_done) {
3852                     ha->dvr.size = sizeof(ha->dvr.eu.sync);
3853                     ha->dvr.eu.sync.ionode  = hanum;
3854                     ha->dvr.eu.sync.service = service;
3855                     ha->dvr.eu.sync.status  = ha->status;
3856                     ha->dvr.eu.sync.info    = ha->info;
3857                     ha->dvr.eu.sync.hostdrive = t;
3858                     if (ha->status >= 0x8000)
3859                         gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3860                     else
3861                         gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3862                 }
3863             } else {
3864                 /* sense buffer filled from controller firmware (DMA) */
3865                 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3866                     scp->result = DID_BAD_TARGET << 16;
3867                 } else {
3868                     scp->result = (DID_OK << 16) | ha->info;
3869                 }
3870             }
3871         }
3872         if (!scp->SCp.have_data_in)
3873             scp->SCp.have_data_in++;
3874         else
3875             return 1;
3876     }
3877
3878     return 0;
3879 }
3880
3881 static char *async_cache_tab[] = {
3882 /* 0*/  "\011\000\002\002\002\004\002\006\004"
3883         "GDT HA %u, service %u, async. status %u/%lu unknown",
3884 /* 1*/  "\011\000\002\002\002\004\002\006\004"
3885         "GDT HA %u, service %u, async. status %u/%lu unknown",
3886 /* 2*/  "\005\000\002\006\004"
3887         "GDT HA %u, Host Drive %lu not ready",
3888 /* 3*/  "\005\000\002\006\004"
3889         "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",
3890 /* 4*/  "\005\000\002\006\004"
3891         "GDT HA %u, mirror update on Host Drive %lu failed",
3892 /* 5*/  "\005\000\002\006\004"
3893         "GDT HA %u, Mirror Drive %lu failed",
3894 /* 6*/  "\005\000\002\006\004"
3895         "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",
3896 /* 7*/  "\005\000\002\006\004"
3897         "GDT HA %u, Host Drive %lu write protected",
3898 /* 8*/  "\005\000\002\006\004"
3899         "GDT HA %u, media changed in Host Drive %lu",
3900 /* 9*/  "\005\000\002\006\004"
3901         "GDT HA %u, Host Drive %lu is offline",
3902 /*10*/  "\005\000\002\006\004"
3903         "GDT HA %u, media change of Mirror Drive %lu",
3904 /*11*/  "\005\000\002\006\004"
3905         "GDT HA %u, Mirror Drive %lu is write protected",
3906 /*12*/  "\005\000\002\006\004"
3907         "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3908 /*13*/  "\007\000\002\006\002\010\002"
3909         "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3910 /*14*/  "\005\000\002\006\002"
3911         "GDT HA %u, Array Drive %u: FAIL state entered",
3912 /*15*/  "\005\000\002\006\002"
3913         "GDT HA %u, Array Drive %u: error",
3914 /*16*/  "\007\000\002\006\002\010\002"
3915         "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3916 /*17*/  "\005\000\002\006\002"
3917         "GDT HA %u, Array Drive %u: parity build failed",
3918 /*18*/  "\005\000\002\006\002"
3919         "GDT HA %u, Array Drive %u: drive rebuild failed",
3920 /*19*/  "\005\000\002\010\002"
3921         "GDT HA %u, Test of Hot Fix %u failed",
3922 /*20*/  "\005\000\002\006\002"
3923         "GDT HA %u, Array Drive %u: drive build finished successfully",
3924 /*21*/  "\005\000\002\006\002"
3925         "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3926 /*22*/  "\007\000\002\006\002\010\002"
3927         "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3928 /*23*/  "\005\000\002\006\002"
3929         "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3930 /*24*/  "\005\000\002\010\002"
3931         "GDT HA %u, mirror update on Cache Drive %u completed",
3932 /*25*/  "\005\000\002\010\002"
3933         "GDT HA %u, mirror update on Cache Drive %lu failed",
3934 /*26*/  "\005\000\002\006\002"
3935         "GDT HA %u, Array Drive %u: drive rebuild started",
3936 /*27*/  "\005\000\002\012\001"
3937         "GDT HA %u, Fault bus %u: SHELF OK detected",
3938 /*28*/  "\005\000\002\012\001"
3939         "GDT HA %u, Fault bus %u: SHELF not OK detected",
3940 /*29*/  "\007\000\002\012\001\013\001"
3941         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3942 /*30*/  "\007\000\002\012\001\013\001"
3943         "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3944 /*31*/  "\007\000\002\012\001\013\001"
3945         "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3946 /*32*/  "\007\000\002\012\001\013\001"
3947         "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3948 /*33*/  "\007\000\002\012\001\013\001"
3949         "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3950 /*34*/  "\011\000\002\012\001\013\001\006\004"
3951         "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3952 /*35*/  "\007\000\002\012\001\013\001"
3953         "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3954 /*36*/  "\007\000\002\012\001\013\001"
3955         "GDT HA %u, Fault bus %u, ID %u: disk not available",
3956 /*37*/  "\007\000\002\012\001\006\004"
3957         "GDT HA %u, Fault bus %u: swap detected (%lu)",
3958 /*38*/  "\007\000\002\012\001\013\001"
3959         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3960 /*39*/  "\007\000\002\012\001\013\001"
3961         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3962 /*40*/  "\007\000\002\012\001\013\001"
3963         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3964 /*41*/  "\007\000\002\012\001\013\001"
3965         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3966 /*42*/  "\005\000\002\006\002"
3967         "GDT HA %u, Array Drive %u: drive build started",
3968 /*43*/  "\003\000\002"
3969         "GDT HA %u, DRAM parity error detected",
3970 /*44*/  "\005\000\002\006\002"
3971         "GDT HA %u, Mirror Drive %u: update started",
3972 /*45*/  "\007\000\002\006\002\010\002"
3973         "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3974 /*46*/  "\005\000\002\006\002"
3975         "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3976 /*47*/  "\005\000\002\006\002"
3977         "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3978 /*48*/  "\005\000\002\006\002"
3979         "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3980 /*49*/  "\005\000\002\006\002"
3981         "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3982 /*50*/  "\007\000\002\012\001\013\001"
3983         "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3984 /*51*/  "\005\000\002\006\002"
3985         "GDT HA %u, Array Drive %u: expand started",
3986 /*52*/  "\005\000\002\006\002"
3987         "GDT HA %u, Array Drive %u: expand finished successfully",
3988 /*53*/  "\005\000\002\006\002"
3989         "GDT HA %u, Array Drive %u: expand failed",
3990 /*54*/  "\003\000\002"
3991         "GDT HA %u, CPU temperature critical",
3992 /*55*/  "\003\000\002"
3993         "GDT HA %u, CPU temperature OK",
3994 /*56*/  "\005\000\002\006\004"
3995         "GDT HA %u, Host drive %lu created",
3996 /*57*/  "\005\000\002\006\002"
3997         "GDT HA %u, Array Drive %u: expand restarted",
3998 /*58*/  "\005\000\002\006\002"
3999         "GDT HA %u, Array Drive %u: expand stopped",
4000 /*59*/  "\005\000\002\010\002"
4001         "GDT HA %u, Mirror Drive %u: drive build quited",
4002 /*60*/  "\005\000\002\006\002"
4003         "GDT HA %u, Array Drive %u: parity build quited",
4004 /*61*/  "\005\000\002\006\002"
4005         "GDT HA %u, Array Drive %u: drive rebuild quited",
4006 /*62*/  "\005\000\002\006\002"
4007         "GDT HA %u, Array Drive %u: parity verify started",
4008 /*63*/  "\005\000\002\006\002"
4009         "GDT HA %u, Array Drive %u: parity verify done",
4010 /*64*/  "\005\000\002\006\002"
4011         "GDT HA %u, Array Drive %u: parity verify failed",
4012 /*65*/  "\005\000\002\006\002"
4013         "GDT HA %u, Array Drive %u: parity error detected",
4014 /*66*/  "\005\000\002\006\002"
4015         "GDT HA %u, Array Drive %u: parity verify quited",
4016 /*67*/  "\005\000\002\006\002"
4017         "GDT HA %u, Host Drive %u reserved",
4018 /*68*/  "\005\000\002\006\002"
4019         "GDT HA %u, Host Drive %u mounted and released",
4020 /*69*/  "\005\000\002\006\002"
4021         "GDT HA %u, Host Drive %u released",
4022 /*70*/  "\003\000\002"
4023         "GDT HA %u, DRAM error detected and corrected with ECC",
4024 /*71*/  "\003\000\002"
4025         "GDT HA %u, Uncorrectable DRAM error detected with ECC",
4026 /*72*/  "\011\000\002\012\001\013\001\014\001"
4027         "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
4028 /*73*/  "\005\000\002\006\002"
4029         "GDT HA %u, Host drive %u resetted locally",
4030 /*74*/  "\005\000\002\006\002"
4031         "GDT HA %u, Host drive %u resetted remotely",
4032 /*75*/  "\003\000\002"
4033         "GDT HA %u, async. status 75 unknown",
4034 };
4035
4036
4037 static int gdth_async_event(int hanum)
4038 {
4039     gdth_ha_str *ha;
4040     gdth_cmd_str *cmdp;
4041     int cmd_index;
4042
4043     ha  = HADATA(gdth_ctr_tab[hanum]);
4044     cmdp= ha->pccb;
4045     TRACE2(("gdth_async_event() ha %d serv %d\n",
4046             hanum,ha->service));
4047
4048     if (ha->service == SCREENSERVICE) {
4049         if (ha->status == MSG_REQUEST) {
4050             while (gdth_test_busy(hanum))
4051                 gdth_delay(0);
4052             cmdp->Service       = SCREENSERVICE;
4053             cmdp->RequestBuffer = SCREEN_CMND;
4054             cmd_index = gdth_get_cmd_index(hanum);
4055             gdth_set_sema0(hanum);
4056             cmdp->OpCode        = GDT_READ;
4057             cmdp->BoardNode     = LOCALBOARD;
4058             cmdp->u.screen.reserved  = 0;
4059             cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
4060             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
4061             ha->cmd_offs_dpmem = 0;
4062             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
4063                 + sizeof(ulong64);
4064             ha->cmd_cnt = 0;
4065             gdth_copy_command(hanum);
4066             if (ha->type == GDT_EISA)
4067                 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
4068             else if (ha->type == GDT_ISA)
4069                 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
4070             else
4071                 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
4072                        (ushort)((ha->brd_phys>>3)&0x1f));
4073             gdth_release_event(hanum);
4074         }
4075
4076     } else {
4077         if (ha->type == GDT_PCIMPR &&
4078             (ha->fw_vers & 0xff) >= 0x1a) {
4079             ha->dvr.size = 0;
4080             ha->dvr.eu.async.ionode = hanum;
4081             ha->dvr.eu.async.status  = ha->status;
4082             /* severity and event_string already set! */
4083         } else {
4084             ha->dvr.size = sizeof(ha->dvr.eu.async);
4085             ha->dvr.eu.async.ionode   = hanum;
4086             ha->dvr.eu.async.service = ha->service;
4087             ha->dvr.eu.async.status  = ha->status;
4088             ha->dvr.eu.async.info    = ha->info;
4089             *(ulong32 *)ha->dvr.eu.async.scsi_coord  = ha->info2;
4090         }
4091         gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
4092         gdth_log_event( &ha->dvr, NULL );
4093
4094         /* new host drive from expand? */
4095         if (ha->service == CACHESERVICE && ha->status == 56) {
4096             TRACE2(("gdth_async_event(): new host drive %d created\n",
4097                     (ushort)ha->info));
4098             /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
4099         }
4100     }
4101     return 1;
4102 }
4103
4104 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
4105 {
4106     gdth_stackframe stack;
4107     char *f = NULL;
4108     int i,j;
4109
4110     TRACE2(("gdth_log_event()\n"));
4111     if (dvr->size == 0) {
4112         if (buffer == NULL) {
4113             printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
4114         } else {
4115             sprintf(buffer,"Adapter %d: %s\n",
4116                 dvr->eu.async.ionode,dvr->event_string);
4117         }
4118     } else if (dvr->eu.async.service == CACHESERVICE &&
4119         INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
4120         TRACE2(("GDT: Async. event cache service, event no.: %d\n",
4121                 dvr->eu.async.status));
4122
4123         f = async_cache_tab[dvr->eu.async.status];
4124
4125         /* i: parameter to push, j: stack element to fill */
4126         for (j=0,i=1; i < f[0]; i+=2) {
4127             switch (f[i+1]) {
4128               case 4:
4129                 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
4130                 break;
4131               case 2:
4132                 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
4133                 break;
4134               case 1:
4135                 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
4136                 break;
4137               default:
4138                 break;
4139             }
4140         }
4141
4142         if (buffer == NULL) {
4143             printk(&f[(int)f[0]],stack);
4144             printk("\n");
4145         } else {
4146             sprintf(buffer,&f[(int)f[0]],stack);
4147         }
4148
4149     } else {
4150         if (buffer == NULL) {
4151             printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
4152                    dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4153         } else {
4154             sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
4155                     dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4156         }
4157     }
4158 }
4159
4160 #ifdef GDTH_STATISTICS
4161 static void gdth_timeout(ulong data)
4162 {
4163     ulong32 i;
4164     Scsi_Cmnd *nscp;
4165     gdth_ha_str *ha;
4166     ulong flags;
4167     int hanum = 0;
4168
4169     ha = HADATA(gdth_ctr_tab[hanum]);
4170     spin_lock_irqsave(&ha->smp_lock, flags);
4171
4172     for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
4173         if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
4174             ++act_stats;
4175
4176     for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
4177         ++act_rq;
4178
4179     TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
4180             act_ints, act_ios, act_stats, act_rq));
4181     act_ints = act_ios = 0;
4182
4183     gdth_timer.expires = jiffies + 30 * HZ;
4184     add_timer(&gdth_timer);
4185     spin_unlock_irqrestore(&ha->smp_lock, flags);
4186 }
4187 #endif
4188
4189 static void __init internal_setup(char *str,int *ints)
4190 {
4191     int i, argc;
4192     char *cur_str, *argv;
4193
4194     TRACE2(("internal_setup() str %s ints[0] %d\n",
4195             str ? str:"NULL", ints ? ints[0]:0));
4196
4197     /* read irq[] from ints[] */
4198     if (ints) {
4199         argc = ints[0];
4200         if (argc > 0) {
4201             if (argc > MAXHA)
4202                 argc = MAXHA;
4203             for (i = 0; i < argc; ++i)
4204                 irq[i] = ints[i+1];
4205         }
4206     }
4207
4208     /* analyse string */
4209     argv = str;
4210     while (argv && (cur_str = strchr(argv, ':'))) {
4211         int val = 0, c = *++cur_str;
4212
4213         if (c == 'n' || c == 'N')
4214             val = 0;
4215         else if (c == 'y' || c == 'Y')
4216             val = 1;
4217         else
4218             val = (int)simple_strtoul(cur_str, NULL, 0);
4219
4220         if (!strncmp(argv, "disable:", 8))
4221             disable = val;
4222         else if (!strncmp(argv, "reserve_mode:", 13))
4223             reserve_mode = val;
4224         else if (!strncmp(argv, "reverse_scan:", 13))
4225             reverse_scan = val;
4226         else if (!strncmp(argv, "hdr_channel:", 12))
4227             hdr_channel = val;
4228         else if (!strncmp(argv, "max_ids:", 8))
4229             max_ids = val;
4230         else if (!strncmp(argv, "rescan:", 7))
4231             rescan = val;
4232         else if (!strncmp(argv, "virt_ctr:", 9))
4233             virt_ctr = val;
4234         else if (!strncmp(argv, "shared_access:", 14))
4235             shared_access = val;
4236         else if (!strncmp(argv, "probe_eisa_isa:", 15))
4237             probe_eisa_isa = val;
4238         else if (!strncmp(argv, "reserve_list:", 13)) {
4239             reserve_list[0] = val;
4240             for (i = 1; i < MAX_RES_ARGS; i++) {
4241                 cur_str = strchr(cur_str, ',');
4242                 if (!cur_str)
4243                     break;
4244                 if (!isdigit((int)*++cur_str)) {
4245                     --cur_str;
4246                     break;
4247                 }
4248                 reserve_list[i] =
4249                     (int)simple_strtoul(cur_str, NULL, 0);
4250             }
4251             if (!cur_str)
4252                 break;
4253             argv = ++cur_str;
4254             continue;
4255         }
4256
4257         if ((argv = strchr(argv, ',')))
4258             ++argv;
4259     }
4260 }
4261
4262 int __init option_setup(char *str)
4263 {
4264     int ints[MAXHA];
4265     char *cur = str;
4266     int i = 1;
4267
4268     TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
4269
4270     while (cur && isdigit(*cur) && i <= MAXHA) {
4271         ints[i++] = simple_strtoul(cur, NULL, 0);
4272         if ((cur = strchr(cur, ',')) != NULL) cur++;
4273     }
4274
4275     ints[0] = i - 1;
4276     internal_setup(cur, ints);
4277     return 1;
4278 }
4279
4280 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4281 static int __init gdth_detect(struct scsi_host_template *shtp)
4282 #else
4283 static int __init gdth_detect(Scsi_Host_Template *shtp)
4284 #endif
4285 {
4286     struct Scsi_Host *shp;
4287     gdth_pci_str pcistr[MAXHA];
4288     gdth_ha_str *ha;
4289     ulong32 isa_bios;
4290     ushort eisa_slot;
4291     int i,hanum,cnt,ctr,err;
4292     unchar b;
4293
4294
4295 #ifdef DEBUG_GDTH
4296     printk("GDT: This driver contains debugging information !! Trace level = %d\n",
4297         DebugState);
4298     printk("     Destination of debugging information: ");
4299 #ifdef __SERIAL__
4300 #ifdef __COM2__
4301     printk("Serial port COM2\n");
4302 #else
4303     printk("Serial port COM1\n");
4304 #endif
4305 #else
4306     printk("Console\n");
4307 #endif
4308     gdth_delay(3000);
4309 #endif
4310
4311     TRACE(("gdth_detect()\n"));
4312
4313     if (disable) {
4314         printk("GDT-HA: Controller driver disabled from command line !\n");
4315         return 0;
4316     }
4317
4318     printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",GDTH_VERSION_STR);
4319     /* initializations */
4320     gdth_polling = TRUE; b = 0;
4321     gdth_clear_events();
4322
4323     /* As default we do not probe for EISA or ISA controllers */
4324     if (probe_eisa_isa) {
4325         /* scanning for controllers, at first: ISA controller */
4326         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
4327             dma_addr_t scratch_dma_handle;
4328             scratch_dma_handle = 0;
4329
4330             if (gdth_ctr_count >= MAXHA)
4331                 break;
4332             if (gdth_search_isa(isa_bios)) {        /* controller found */
4333                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4334                 if (shp == NULL)
4335                     continue;
4336
4337                 ha = HADATA(shp);
4338                 if (!gdth_init_isa(isa_bios,ha)) {
4339                     scsi_unregister(shp);
4340                     continue;
4341                 }
4342 #ifdef __ia64__
4343                 break;
4344 #else
4345                 /* controller found and initialized */
4346                 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4347                        isa_bios,ha->irq,ha->drq);
4348
4349                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4350                     printk("GDT-ISA: Unable to allocate IRQ\n");
4351                     scsi_unregister(shp);
4352                     continue;
4353                 }
4354                 if (request_dma(ha->drq,"gdth")) {
4355                     printk("GDT-ISA: Unable to allocate DMA channel\n");
4356                     free_irq(ha->irq,ha);
4357                     scsi_unregister(shp);
4358                     continue;
4359                 }
4360                 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4361                 enable_dma(ha->drq);
4362                 shp->unchecked_isa_dma = 1;
4363                 shp->irq = ha->irq;
4364                 shp->dma_channel = ha->drq;
4365                 hanum = gdth_ctr_count;
4366                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4367                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4368
4369                 NUMDATA(shp)->hanum = (ushort)hanum;
4370                 NUMDATA(shp)->busnum= 0;
4371
4372                 ha->pccb = CMDDATA(shp);
4373                 ha->ccb_phys = 0L;
4374                 ha->pdev = NULL;
4375                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4376                                                     &scratch_dma_handle);
4377                 ha->scratch_phys = scratch_dma_handle;
4378                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4379                                                 &scratch_dma_handle);
4380                 ha->msg_phys = scratch_dma_handle;
4381 #ifdef INT_COAL
4382                 ha->coal_stat = (gdth_coal_status *)
4383                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4384                         MAXOFFSETS, &scratch_dma_handle);
4385                 ha->coal_stat_phys = scratch_dma_handle;
4386 #endif
4387
4388                 ha->scratch_busy = FALSE;
4389                 ha->req_first = NULL;
4390                 ha->tid_cnt = MAX_HDRIVES;
4391                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4392                     ha->tid_cnt = max_ids;
4393                 for (i=0; i<GDTH_MAXCMDS; ++i)
4394                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4395                 ha->scan_mode = rescan ? 0x10 : 0;
4396
4397                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4398                     !gdth_search_drives(hanum)) {
4399                     printk("GDT-ISA: Error during device scan\n");
4400                     --gdth_ctr_count;
4401                     --gdth_ctr_vcount;
4402
4403 #ifdef INT_COAL
4404                     if (ha->coal_stat)
4405                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4406                                             MAXOFFSETS, ha->coal_stat,
4407                                             ha->coal_stat_phys);
4408 #endif
4409                     if (ha->pscratch)
4410                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4411                                             ha->pscratch, ha->scratch_phys);
4412                     if (ha->pmsg)
4413                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4414                                             ha->pmsg, ha->msg_phys);
4415
4416                     free_irq(ha->irq,ha);
4417                     scsi_unregister(shp);
4418                     continue;
4419                 }
4420                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4421                     hdr_channel = ha->bus_cnt;
4422                 ha->virt_bus = hdr_channel;
4423
4424 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4425     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4426                 shp->highmem_io  = 0;
4427 #endif
4428                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4429                     shp->max_cmd_len = 16;
4430
4431                 shp->max_id      = ha->tid_cnt;
4432                 shp->max_lun     = MAXLUN;
4433                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4434                 if (virt_ctr) {
4435                     virt_ctr = 1;
4436                     /* register addit. SCSI channels as virtual controllers */
4437                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4438                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4439                         shp->unchecked_isa_dma = 1;
4440                         shp->irq = ha->irq;
4441                         shp->dma_channel = ha->drq;
4442                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4443                         NUMDATA(shp)->hanum = (ushort)hanum;
4444                         NUMDATA(shp)->busnum = b;
4445                     }
4446                 }
4447
4448                 spin_lock_init(&ha->smp_lock);
4449                 gdth_enable_int(hanum);
4450 #endif /* !__ia64__ */
4451             }
4452         }
4453
4454         /* scanning for EISA controllers */
4455         for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
4456             dma_addr_t scratch_dma_handle;
4457             scratch_dma_handle = 0;
4458
4459             if (gdth_ctr_count >= MAXHA)
4460                 break;
4461             if (gdth_search_eisa(eisa_slot)) {      /* controller found */
4462                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4463                 if (shp == NULL)
4464                     continue;
4465
4466                 ha = HADATA(shp);
4467                 if (!gdth_init_eisa(eisa_slot,ha)) {
4468                     scsi_unregister(shp);
4469                     continue;
4470                 }
4471                 /* controller found and initialized */
4472                 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4473                        eisa_slot>>12,ha->irq);
4474
4475                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4476                     printk("GDT-EISA: Unable to allocate IRQ\n");
4477                     scsi_unregister(shp);
4478                     continue;
4479                 }
4480                 shp->unchecked_isa_dma = 0;
4481                 shp->irq = ha->irq;
4482                 shp->dma_channel = 0xff;
4483                 hanum = gdth_ctr_count;
4484                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4485                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4486
4487                 NUMDATA(shp)->hanum = (ushort)hanum;
4488                 NUMDATA(shp)->busnum= 0;
4489                 TRACE2(("EISA detect Bus 0: hanum %d\n",
4490                         NUMDATA(shp)->hanum));
4491
4492                 ha->pccb = CMDDATA(shp);
4493                 ha->ccb_phys = 0L;
4494
4495                 ha->pdev = NULL;
4496                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4497                                                     &scratch_dma_handle);
4498                 ha->scratch_phys = scratch_dma_handle;
4499                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4500                                                 &scratch_dma_handle);
4501                 ha->msg_phys = scratch_dma_handle;
4502 #ifdef INT_COAL
4503                 ha->coal_stat = (gdth_coal_status *)
4504                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4505                                          MAXOFFSETS, &scratch_dma_handle);
4506                 ha->coal_stat_phys = scratch_dma_handle;
4507 #endif
4508                 ha->ccb_phys =
4509                     pci_map_single(ha->pdev,ha->pccb,
4510                                    sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4511                 ha->scratch_busy = FALSE;
4512                 ha->req_first = NULL;
4513                 ha->tid_cnt = MAX_HDRIVES;
4514                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4515                     ha->tid_cnt = max_ids;
4516                 for (i=0; i<GDTH_MAXCMDS; ++i)
4517                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4518                 ha->scan_mode = rescan ? 0x10 : 0;
4519
4520                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4521                     !gdth_search_drives(hanum)) {
4522                     printk("GDT-EISA: Error during device scan\n");
4523                     --gdth_ctr_count;
4524                     --gdth_ctr_vcount;
4525 #ifdef INT_COAL
4526                     if (ha->coal_stat)
4527                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4528                                             MAXOFFSETS, ha->coal_stat,
4529                                             ha->coal_stat_phys);
4530 #endif
4531                     if (ha->pscratch)
4532                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4533                                             ha->pscratch, ha->scratch_phys);
4534                     if (ha->pmsg)
4535                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4536                                             ha->pmsg, ha->msg_phys);
4537                     if (ha->ccb_phys)
4538                         pci_unmap_single(ha->pdev,ha->ccb_phys,
4539                                         sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4540                     free_irq(ha->irq,ha);
4541                     scsi_unregister(shp);
4542                     continue;
4543                 }
4544                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4545                     hdr_channel = ha->bus_cnt;
4546                 ha->virt_bus = hdr_channel;
4547
4548 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4549     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4550                 shp->highmem_io  = 0;
4551 #endif
4552                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4553                     shp->max_cmd_len = 16;
4554
4555                 shp->max_id      = ha->tid_cnt;
4556                 shp->max_lun     = MAXLUN;
4557                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4558                 if (virt_ctr) {
4559                     virt_ctr = 1;
4560                     /* register addit. SCSI channels as virtual controllers */
4561                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4562                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4563                         shp->unchecked_isa_dma = 0;
4564                         shp->irq = ha->irq;
4565                         shp->dma_channel = 0xff;
4566                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4567                         NUMDATA(shp)->hanum = (ushort)hanum;
4568                         NUMDATA(shp)->busnum = b;
4569                     }
4570                 }
4571
4572                 spin_lock_init(&ha->smp_lock);
4573                 gdth_enable_int(hanum);
4574             }
4575         }
4576     }
4577
4578     /* scanning for PCI controllers */
4579     cnt = gdth_search_pci(pcistr);
4580     printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
4581     gdth_sort_pci(pcistr,cnt);
4582     for (ctr = 0; ctr < cnt; ++ctr) {
4583         dma_addr_t scratch_dma_handle;
4584         scratch_dma_handle = 0;
4585
4586         if (gdth_ctr_count >= MAXHA)
4587             break;
4588         shp = scsi_register(shtp,sizeof(gdth_ext_str));
4589         if (shp == NULL)
4590             continue;
4591
4592         ha = HADATA(shp);
4593         if (!gdth_init_pci(&pcistr[ctr],ha)) {
4594             scsi_unregister(shp);
4595             continue;
4596         }
4597         /* controller found and initialized */
4598         printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4599                pcistr[ctr].pdev->bus->number,
4600                PCI_SLOT(pcistr[ctr].pdev->devfn), ha->irq);
4601
4602         if (request_irq(ha->irq, gdth_interrupt,
4603                         IRQF_DISABLED|IRQF_SHARED, "gdth", ha))
4604         {
4605             printk("GDT-PCI: Unable to allocate IRQ\n");
4606             scsi_unregister(shp);
4607             continue;
4608         }
4609         shp->unchecked_isa_dma = 0;
4610         shp->irq = ha->irq;
4611         shp->dma_channel = 0xff;
4612         hanum = gdth_ctr_count;
4613         gdth_ctr_tab[gdth_ctr_count++] = shp;
4614         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4615
4616         NUMDATA(shp)->hanum = (ushort)hanum;
4617         NUMDATA(shp)->busnum= 0;
4618
4619         ha->pccb = CMDDATA(shp);
4620         ha->ccb_phys = 0L;
4621
4622         ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4623                                             &scratch_dma_handle);
4624         ha->scratch_phys = scratch_dma_handle;
4625         ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4626                                         &scratch_dma_handle);
4627         ha->msg_phys = scratch_dma_handle;
4628 #ifdef INT_COAL
4629         ha->coal_stat = (gdth_coal_status *)
4630             pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4631                                  MAXOFFSETS, &scratch_dma_handle);
4632         ha->coal_stat_phys = scratch_dma_handle;
4633 #endif
4634         ha->scratch_busy = FALSE;
4635         ha->req_first = NULL;
4636         ha->tid_cnt = pcistr[ctr].pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
4637         if (max_ids > 0 && max_ids < ha->tid_cnt)
4638             ha->tid_cnt = max_ids;
4639         for (i=0; i<GDTH_MAXCMDS; ++i)
4640             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4641         ha->scan_mode = rescan ? 0x10 : 0;
4642
4643         err = FALSE;
4644         if (ha->pscratch == NULL || ha->pmsg == NULL ||
4645             !gdth_search_drives(hanum)) {
4646             err = TRUE;
4647         } else {
4648             if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4649                 hdr_channel = ha->bus_cnt;
4650             ha->virt_bus = hdr_channel;
4651
4652
4653 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4654             scsi_set_pci_device(shp, pcistr[ctr].pdev);
4655 #endif
4656             if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
4657                 /* 64-bit DMA only supported from FW >= x.43 */
4658                 (!ha->dma64_support)) {
4659                 if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4660                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
4661                     err = TRUE;
4662                 }
4663             } else {
4664                 shp->max_cmd_len = 16;
4665                 if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
4666                     printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
4667                 } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4668                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
4669                     err = TRUE;
4670                 }
4671             }
4672         }
4673
4674         if (err) {
4675             printk("GDT-PCI %d: Error during device scan\n", hanum);
4676             --gdth_ctr_count;
4677             --gdth_ctr_vcount;
4678 #ifdef INT_COAL
4679             if (ha->coal_stat)
4680                 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4681                                     MAXOFFSETS, ha->coal_stat,
4682                                     ha->coal_stat_phys);
4683 #endif
4684             if (ha->pscratch)
4685                 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4686                                     ha->pscratch, ha->scratch_phys);
4687             if (ha->pmsg)
4688                 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4689                                     ha->pmsg, ha->msg_phys);
4690             free_irq(ha->irq,ha);
4691             scsi_unregister(shp);
4692             continue;
4693         }
4694
4695         shp->max_id      = ha->tid_cnt;
4696         shp->max_lun     = MAXLUN;
4697         shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4698         if (virt_ctr) {
4699             virt_ctr = 1;
4700             /* register addit. SCSI channels as virtual controllers */
4701             for (b = 1; b < ha->bus_cnt + 1; ++b) {
4702                 shp = scsi_register(shtp,sizeof(gdth_num_str));
4703                 shp->unchecked_isa_dma = 0;
4704                 shp->irq = ha->irq;
4705                 shp->dma_channel = 0xff;
4706                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4707                 NUMDATA(shp)->hanum = (ushort)hanum;
4708                 NUMDATA(shp)->busnum = b;
4709             }
4710         }
4711
4712         spin_lock_init(&ha->smp_lock);
4713         gdth_enable_int(hanum);
4714     }
4715
4716     TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
4717     if (gdth_ctr_count > 0) {
4718 #ifdef GDTH_STATISTICS
4719         TRACE2(("gdth_detect(): Initializing timer !\n"));
4720         init_timer(&gdth_timer);
4721         gdth_timer.expires = jiffies + HZ;
4722         gdth_timer.data = 0L;
4723         gdth_timer.function = gdth_timeout;
4724         add_timer(&gdth_timer);
4725 #endif
4726         major = register_chrdev(0,"gdth",&gdth_fops);
4727         notifier_disabled = 0;
4728         register_reboot_notifier(&gdth_notifier);
4729     }
4730     gdth_polling = FALSE;
4731     return gdth_ctr_vcount;
4732 }
4733
4734 static int gdth_release(struct Scsi_Host *shp)
4735 {
4736     int hanum;
4737     gdth_ha_str *ha;
4738
4739     TRACE2(("gdth_release()\n"));
4740     if (NUMDATA(shp)->busnum == 0) {
4741         hanum = NUMDATA(shp)->hanum;
4742         ha    = HADATA(gdth_ctr_tab[hanum]);
4743         if (ha->sdev) {
4744             scsi_free_host_dev(ha->sdev);
4745             ha->sdev = NULL;
4746         }
4747         gdth_flush(hanum);
4748
4749         if (shp->irq) {
4750             free_irq(shp->irq,ha);
4751         }
4752 #ifndef __ia64__
4753         if (shp->dma_channel != 0xff) {
4754             free_dma(shp->dma_channel);
4755         }
4756 #endif
4757 #ifdef INT_COAL
4758         if (ha->coal_stat)
4759             pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4760                                 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
4761 #endif
4762         if (ha->pscratch)
4763             pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4764                                 ha->pscratch, ha->scratch_phys);
4765         if (ha->pmsg)
4766             pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4767                                 ha->pmsg, ha->msg_phys);
4768         if (ha->ccb_phys)
4769             pci_unmap_single(ha->pdev,ha->ccb_phys,
4770                              sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4771         gdth_ctr_released++;
4772         TRACE2(("gdth_release(): HA %d of %d\n",
4773                 gdth_ctr_released, gdth_ctr_count));
4774
4775         if (gdth_ctr_released == gdth_ctr_count) {
4776 #ifdef GDTH_STATISTICS
4777             del_timer(&gdth_timer);
4778 #endif
4779             unregister_chrdev(major,"gdth");
4780             unregister_reboot_notifier(&gdth_notifier);
4781         }
4782     }
4783
4784     scsi_unregister(shp);
4785     return 0;
4786 }
4787
4788
4789 static const char *gdth_ctr_name(int hanum)
4790 {
4791     gdth_ha_str *ha;
4792
4793     TRACE2(("gdth_ctr_name()\n"));
4794
4795     ha    = HADATA(gdth_ctr_tab[hanum]);
4796
4797     if (ha->type == GDT_EISA) {
4798         switch (ha->stype) {
4799           case GDT3_ID:
4800             return("GDT3000/3020");
4801           case GDT3A_ID:
4802             return("GDT3000A/3020A/3050A");
4803           case GDT3B_ID:
4804             return("GDT3000B/3010A");
4805         }
4806     } else if (ha->type == GDT_ISA) {
4807         return("GDT2000/2020");
4808     } else if (ha->type == GDT_PCI) {
4809         switch (ha->pdev->device) {
4810           case PCI_DEVICE_ID_VORTEX_GDT60x0:
4811             return("GDT6000/6020/6050");
4812           case PCI_DEVICE_ID_VORTEX_GDT6000B:
4813             return("GDT6000B/6010");
4814         }
4815     }
4816     /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
4817
4818     return("");
4819 }
4820
4821 static const char *gdth_info(struct Scsi_Host *shp)
4822 {
4823     int hanum;
4824     gdth_ha_str *ha;
4825
4826     TRACE2(("gdth_info()\n"));
4827     hanum = NUMDATA(shp)->hanum;
4828     ha    = HADATA(gdth_ctr_tab[hanum]);
4829
4830     return ((const char *)ha->binfo.type_string);
4831 }
4832
4833 static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
4834 {
4835     int i, hanum;
4836     gdth_ha_str *ha;
4837     ulong flags;
4838     Scsi_Cmnd *cmnd;
4839     unchar b;
4840
4841     TRACE2(("gdth_eh_bus_reset()\n"));
4842
4843     hanum = NUMDATA(scp->device->host)->hanum;
4844     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
4845     ha    = HADATA(gdth_ctr_tab[hanum]);
4846
4847     /* clear command tab */
4848     spin_lock_irqsave(&ha->smp_lock, flags);
4849     for (i = 0; i < GDTH_MAXCMDS; ++i) {
4850         cmnd = ha->cmd_tab[i].cmnd;
4851         if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
4852             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4853     }
4854     spin_unlock_irqrestore(&ha->smp_lock, flags);
4855
4856     if (b == ha->virt_bus) {
4857         /* host drives */
4858         for (i = 0; i < MAX_HDRIVES; ++i) {
4859             if (ha->hdr[i].present) {
4860                 spin_lock_irqsave(&ha->smp_lock, flags);
4861                 gdth_polling = TRUE;
4862                 while (gdth_test_busy(hanum))
4863                     gdth_delay(0);
4864                 if (gdth_internal_cmd(hanum, CACHESERVICE,
4865                                       GDT_CLUST_RESET, i, 0, 0))
4866                     ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
4867                 gdth_polling = FALSE;
4868                 spin_unlock_irqrestore(&ha->smp_lock, flags);
4869             }
4870         }
4871     } else {
4872         /* raw devices */
4873         spin_lock_irqsave(&ha->smp_lock, flags);
4874         for (i = 0; i < MAXID; ++i)
4875             ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
4876         gdth_polling = TRUE;
4877         while (gdth_test_busy(hanum))
4878             gdth_delay(0);
4879         gdth_internal_cmd(hanum, SCSIRAWSERVICE, GDT_RESET_BUS,
4880                           BUS_L2P(ha,b), 0, 0);
4881         gdth_polling = FALSE;
4882         spin_unlock_irqrestore(&ha->smp_lock, flags);
4883     }
4884     return SUCCESS;
4885 }
4886
4887 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4888 static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
4889 #else
4890 static int gdth_bios_param(Disk *disk,kdev_t dev,int *ip)
4891 #endif
4892 {
4893     unchar b, t;
4894     int hanum;
4895     gdth_ha_str *ha;
4896     struct scsi_device *sd;
4897     unsigned capacity;
4898
4899 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4900     sd = sdev;
4901     capacity = cap;
4902 #else
4903     sd = disk->device;
4904     capacity = disk->capacity;
4905 #endif
4906     hanum = NUMDATA(sd->host)->hanum;
4907     b = virt_ctr ? NUMDATA(sd->host)->busnum : sd->channel;
4908     t = sd->id;
4909     TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", hanum, b, t));
4910     ha = HADATA(gdth_ctr_tab[hanum]);
4911
4912     if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
4913         /* raw device or host drive without mapping information */
4914         TRACE2(("Evaluate mapping\n"));
4915         gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
4916     } else {
4917         ip[0] = ha->hdr[t].heads;
4918         ip[1] = ha->hdr[t].secs;
4919         ip[2] = capacity / ip[0] / ip[1];
4920     }
4921
4922     TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
4923             ip[0],ip[1],ip[2]));
4924     return 0;
4925 }
4926
4927
4928 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *))
4929 {
4930     int hanum;
4931     int priority;
4932
4933     TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4934
4935     scp->scsi_done = (void *)done;
4936     scp->SCp.have_data_in = 1;
4937     scp->SCp.phase = -1;
4938     scp->SCp.sent_command = -1;
4939     scp->SCp.Status = GDTH_MAP_NONE;
4940     scp->SCp.buffer = (struct scatterlist *)NULL;
4941
4942     hanum = NUMDATA(scp->device->host)->hanum;
4943 #ifdef GDTH_STATISTICS
4944     ++act_ios;
4945 #endif
4946
4947     priority = DEFAULT_PRI;
4948     if (scp->done == gdth_scsi_done)
4949         priority = scp->SCp.this_residual;
4950     else
4951         gdth_update_timeout(hanum, scp, scp->timeout_per_command * 6);
4952
4953     gdth_putq( hanum, scp, priority );
4954     gdth_next( hanum );
4955     return 0;
4956 }
4957
4958
4959 static int gdth_open(struct inode *inode, struct file *filep)
4960 {
4961     gdth_ha_str *ha;
4962     int i;
4963
4964     for (i = 0; i < gdth_ctr_count; i++) {
4965         ha = HADATA(gdth_ctr_tab[i]);
4966         if (!ha->sdev)
4967             ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]);
4968     }
4969
4970     TRACE(("gdth_open()\n"));
4971     return 0;
4972 }
4973
4974 static int gdth_close(struct inode *inode, struct file *filep)
4975 {
4976     TRACE(("gdth_close()\n"));
4977     return 0;
4978 }
4979
4980 static int ioc_event(void __user *arg)
4981 {
4982     gdth_ioctl_event evt;
4983     gdth_ha_str *ha;
4984     ulong flags;
4985
4986     if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) ||
4987         evt.ionode >= gdth_ctr_count)
4988         return -EFAULT;
4989     ha = HADATA(gdth_ctr_tab[evt.ionode]);
4990
4991     if (evt.erase == 0xff) {
4992         if (evt.event.event_source == ES_TEST)
4993             evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4994         else if (evt.event.event_source == ES_DRIVER)
4995             evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4996         else if (evt.event.event_source == ES_SYNC)
4997             evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
4998         else
4999             evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
5000         spin_lock_irqsave(&ha->smp_lock, flags);
5001         gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
5002                          &evt.event.event_data);
5003         spin_unlock_irqrestore(&ha->smp_lock, flags);
5004     } else if (evt.erase == 0xfe) {
5005         gdth_clear_events();
5006     } else if (evt.erase == 0) {
5007         evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
5008     } else {
5009         gdth_readapp_event(ha, evt.erase, &evt.event);
5010     }
5011     if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
5012         return -EFAULT;
5013     return 0;
5014 }
5015
5016 static int ioc_lockdrv(void __user *arg)
5017 {
5018     gdth_ioctl_lockdrv ldrv;
5019     unchar i, j;
5020     ulong flags;
5021     gdth_ha_str *ha;
5022
5023     if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) ||
5024         ldrv.ionode >= gdth_ctr_count)
5025         return -EFAULT;
5026     ha = HADATA(gdth_ctr_tab[ldrv.ionode]);
5027
5028     for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
5029         j = ldrv.drives[i];
5030         if (j >= MAX_HDRIVES || !ha->hdr[j].present)
5031             continue;
5032         if (ldrv.lock) {
5033             spin_lock_irqsave(&ha->smp_lock, flags);
5034             ha->hdr[j].lock = 1;
5035             spin_unlock_irqrestore(&ha->smp_lock, flags);
5036             gdth_wait_completion(ldrv.ionode, ha->bus_cnt, j);
5037             gdth_stop_timeout(ldrv.ionode, ha->bus_cnt, j);
5038         } else {
5039             spin_lock_irqsave(&ha->smp_lock, flags);
5040             ha->hdr[j].lock = 0;
5041             spin_unlock_irqrestore(&ha->smp_lock, flags);
5042             gdth_start_timeout(ldrv.ionode, ha->bus_cnt, j);
5043             gdth_next(ldrv.ionode);
5044         }
5045     }
5046     return 0;
5047 }
5048
5049 static int ioc_resetdrv(void __user *arg, char *cmnd)
5050 {
5051     gdth_ioctl_reset res;
5052     gdth_cmd_str cmd;
5053     int hanum;
5054     gdth_ha_str *ha;
5055     int rval;
5056
5057     if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
5058         res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
5059         return -EFAULT;
5060     hanum = res.ionode;
5061     ha = HADATA(gdth_ctr_tab[hanum]);
5062
5063     if (!ha->hdr[res.number].present)
5064         return 0;
5065     memset(&cmd, 0, sizeof(gdth_cmd_str));
5066     cmd.Service = CACHESERVICE;
5067     cmd.OpCode = GDT_CLUST_RESET;
5068     if (ha->cache_feat & GDT_64BIT)
5069         cmd.u.cache64.DeviceNo = res.number;
5070     else
5071         cmd.u.cache.DeviceNo = res.number;
5072
5073     rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
5074     if (rval < 0)
5075         return rval;
5076     res.status = rval;
5077
5078     if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
5079         return -EFAULT;
5080     return 0;
5081 }
5082
5083 static int ioc_general(void __user *arg, char *cmnd)
5084 {
5085     gdth_ioctl_general gen;
5086     char *buf = NULL;
5087     ulong64 paddr;
5088     int hanum;
5089     gdth_ha_str *ha;
5090     int rval;
5091
5092     if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
5093         gen.ionode >= gdth_ctr_count)
5094         return -EFAULT;
5095     hanum = gen.ionode;
5096     ha = HADATA(gdth_ctr_tab[hanum]);
5097     if (gen.data_len + gen.sense_len != 0) {
5098         if (!(buf = gdth_ioctl_alloc(hanum, gen.data_len + gen.sense_len,
5099                                      FALSE, &paddr)))
5100             return -EFAULT;
5101         if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
5102                            gen.data_len + gen.sense_len)) {
5103             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5104             return -EFAULT;
5105         }
5106
5107         if (gen.command.OpCode == GDT_IOCTL) {
5108             gen.command.u.ioctl.p_param = paddr;
5109         } else if (gen.command.Service == CACHESERVICE) {
5110             if (ha->cache_feat & GDT_64BIT) {
5111                 /* copy elements from 32-bit IOCTL structure */
5112                 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
5113                 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
5114                 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
5115                 /* addresses */
5116                 if (ha->cache_feat & SCATTER_GATHER) {
5117                     gen.command.u.cache64.DestAddr = (ulong64)-1;
5118                     gen.command.u.cache64.sg_canz = 1;
5119                     gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
5120                     gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
5121                     gen.command.u.cache64.sg_lst[1].sg_len = 0;
5122                 } else {
5123                     gen.command.u.cache64.DestAddr = paddr;
5124                     gen.command.u.cache64.sg_canz = 0;
5125                 }
5126             } else {
5127                 if (ha->cache_feat & SCATTER_GATHER) {
5128                     gen.command.u.cache.DestAddr = 0xffffffff;
5129                     gen.command.u.cache.sg_canz = 1;
5130                     gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
5131                     gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
5132                     gen.command.u.cache.sg_lst[1].sg_len = 0;
5133                 } else {
5134                     gen.command.u.cache.DestAddr = paddr;
5135                     gen.command.u.cache.sg_canz = 0;
5136                 }
5137             }
5138         } else if (gen.command.Service == SCSIRAWSERVICE) {
5139             if (ha->raw_feat & GDT_64BIT) {
5140                 /* copy elements from 32-bit IOCTL structure */
5141                 char cmd[16];
5142                 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
5143                 gen.command.u.raw64.bus = gen.command.u.raw.bus;
5144                 gen.command.u.raw64.lun = gen.command.u.raw.lun;
5145                 gen.command.u.raw64.target = gen.command.u.raw.target;
5146                 memcpy(cmd, gen.command.u.raw.cmd, 16);
5147                 memcpy(gen.command.u.raw64.cmd, cmd, 16);
5148                 gen.command.u.raw64.clen = gen.command.u.raw.clen;
5149                 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
5150                 gen.command.u.raw64.direction = gen.command.u.raw.direction;
5151                 /* addresses */
5152                 if (ha->raw_feat & SCATTER_GATHER) {
5153                     gen.command.u.raw64.sdata = (ulong64)-1;
5154                     gen.command.u.raw64.sg_ranz = 1;
5155                     gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
5156                     gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
5157                     gen.command.u.raw64.sg_lst[1].sg_len = 0;
5158                 } else {
5159                     gen.command.u.raw64.sdata = paddr;
5160                     gen.command.u.raw64.sg_ranz = 0;
5161                 }
5162                 gen.command.u.raw64.sense_data = paddr + gen.data_len;
5163             } else {
5164                 if (ha->raw_feat & SCATTER_GATHER) {
5165                     gen.command.u.raw.sdata = 0xffffffff;
5166                     gen.command.u.raw.sg_ranz = 1;
5167                     gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
5168                     gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
5169                     gen.command.u.raw.sg_lst[1].sg_len = 0;
5170                 } else {
5171                     gen.command.u.raw.sdata = paddr;
5172                     gen.command.u.raw.sg_ranz = 0;
5173                 }
5174                 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
5175             }
5176         } else {
5177             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5178             return -EFAULT;
5179         }
5180     }
5181
5182     rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
5183     if (rval < 0)
5184         return rval;
5185     gen.status = rval;
5186
5187     if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
5188                      gen.data_len + gen.sense_len)) {
5189         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5190         return -EFAULT;
5191     }
5192     if (copy_to_user(arg, &gen,
5193         sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
5194         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5195         return -EFAULT;
5196     }
5197     gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5198     return 0;
5199 }
5200
5201 static int ioc_hdrlist(void __user *arg, char *cmnd)
5202 {
5203     gdth_ioctl_rescan *rsc;
5204     gdth_cmd_str *cmd;
5205     gdth_ha_str *ha;
5206     unchar i;
5207     int hanum, rc = -ENOMEM;
5208     u32 cluster_type = 0;
5209
5210     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5211     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5212     if (!rsc || !cmd)
5213         goto free_fail;
5214
5215     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5216         rsc->ionode >= gdth_ctr_count) {
5217         rc = -EFAULT;
5218         goto free_fail;
5219     }
5220     hanum = rsc->ionode;
5221     ha = HADATA(gdth_ctr_tab[hanum]);
5222     memset(cmd, 0, sizeof(gdth_cmd_str));
5223
5224     for (i = 0; i < MAX_HDRIVES; ++i) {
5225         if (!ha->hdr[i].present) {
5226             rsc->hdr_list[i].bus = 0xff;
5227             continue;
5228         }
5229         rsc->hdr_list[i].bus = ha->virt_bus;
5230         rsc->hdr_list[i].target = i;
5231         rsc->hdr_list[i].lun = 0;
5232         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5233         if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
5234             cmd->Service = CACHESERVICE;
5235             cmd->OpCode = GDT_CLUST_INFO;
5236             if (ha->cache_feat & GDT_64BIT)
5237                 cmd->u.cache64.DeviceNo = i;
5238             else
5239                 cmd->u.cache.DeviceNo = i;
5240             if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
5241                 rsc->hdr_list[i].cluster_type = cluster_type;
5242         }
5243     }
5244
5245     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5246         rc = -EFAULT;
5247     else
5248         rc = 0;
5249
5250 free_fail:
5251     kfree(rsc);
5252     kfree(cmd);
5253     return rc;
5254 }
5255
5256 static int ioc_rescan(void __user *arg, char *cmnd)
5257 {
5258     gdth_ioctl_rescan *rsc;
5259     gdth_cmd_str *cmd;
5260     ushort i, status, hdr_cnt;
5261     ulong32 info;
5262     int hanum, cyls, hds, secs;
5263     int rc = -ENOMEM;
5264     ulong flags;
5265     gdth_ha_str *ha;
5266
5267     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5268     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5269     if (!cmd || !rsc)
5270         goto free_fail;
5271
5272     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5273         rsc->ionode >= gdth_ctr_count) {
5274         rc = -EFAULT;
5275         goto free_fail;
5276     }
5277     hanum = rsc->ionode;
5278     ha = HADATA(gdth_ctr_tab[hanum]);
5279     memset(cmd, 0, sizeof(gdth_cmd_str));
5280
5281     if (rsc->flag == 0) {
5282         /* old method: re-init. cache service */
5283         cmd->Service = CACHESERVICE;
5284         if (ha->cache_feat & GDT_64BIT) {
5285             cmd->OpCode = GDT_X_INIT_HOST;
5286             cmd->u.cache64.DeviceNo = LINUX_OS;
5287         } else {
5288             cmd->OpCode = GDT_INIT;
5289             cmd->u.cache.DeviceNo = LINUX_OS;
5290         }
5291
5292         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5293         i = 0;
5294         hdr_cnt = (status == S_OK ? (ushort)info : 0);
5295     } else {
5296         i = rsc->hdr_no;
5297         hdr_cnt = i + 1;
5298     }
5299
5300     for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
5301         cmd->Service = CACHESERVICE;
5302         cmd->OpCode = GDT_INFO;
5303         if (ha->cache_feat & GDT_64BIT)
5304             cmd->u.cache64.DeviceNo = i;
5305         else
5306             cmd->u.cache.DeviceNo = i;
5307
5308         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5309
5310         spin_lock_irqsave(&ha->smp_lock, flags);
5311         rsc->hdr_list[i].bus = ha->virt_bus;
5312         rsc->hdr_list[i].target = i;
5313         rsc->hdr_list[i].lun = 0;
5314         if (status != S_OK) {
5315             ha->hdr[i].present = FALSE;
5316         } else {
5317             ha->hdr[i].present = TRUE;
5318             ha->hdr[i].size = info;
5319             /* evaluate mapping */
5320             ha->hdr[i].size &= ~SECS32;
5321             gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
5322             ha->hdr[i].heads = hds;
5323             ha->hdr[i].secs = secs;
5324             /* round size */
5325             ha->hdr[i].size = cyls * hds * secs;
5326         }
5327         spin_unlock_irqrestore(&ha->smp_lock, flags);
5328         if (status != S_OK)
5329             continue;
5330
5331         /* extended info, if GDT_64BIT, for drives > 2 TB */
5332         /* but we need ha->info2, not yet stored in scp->SCp */
5333
5334         /* devtype, cluster info, R/W attribs */
5335         cmd->Service = CACHESERVICE;
5336         cmd->OpCode = GDT_DEVTYPE;
5337         if (ha->cache_feat & GDT_64BIT)
5338             cmd->u.cache64.DeviceNo = i;
5339         else
5340             cmd->u.cache.DeviceNo = i;
5341
5342         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5343
5344         spin_lock_irqsave(&ha->smp_lock, flags);
5345         ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
5346         spin_unlock_irqrestore(&ha->smp_lock, flags);
5347
5348         cmd->Service = CACHESERVICE;
5349         cmd->OpCode = GDT_CLUST_INFO;
5350         if (ha->cache_feat & GDT_64BIT)
5351             cmd->u.cache64.DeviceNo = i;
5352         else
5353             cmd->u.cache.DeviceNo = i;
5354
5355         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5356
5357         spin_lock_irqsave(&ha->smp_lock, flags);
5358         ha->hdr[i].cluster_type =
5359             ((status == S_OK && !shared_access) ? (ushort)info : 0);
5360         spin_unlock_irqrestore(&ha->smp_lock, flags);
5361         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5362
5363         cmd->Service = CACHESERVICE;
5364         cmd->OpCode = GDT_RW_ATTRIBS;
5365         if (ha->cache_feat & GDT_64BIT)
5366             cmd->u.cache64.DeviceNo = i;
5367         else
5368             cmd->u.cache.DeviceNo = i;
5369
5370         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5371
5372         spin_lock_irqsave(&ha->smp_lock, flags);
5373         ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
5374         spin_unlock_irqrestore(&ha->smp_lock, flags);
5375     }
5376
5377     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5378         rc = -EFAULT;
5379     else
5380         rc = 0;
5381
5382 free_fail:
5383     kfree(rsc);
5384     kfree(cmd);
5385     return rc;
5386 }
5387
5388 static int gdth_ioctl(struct inode *inode, struct file *filep,
5389                       unsigned int cmd, unsigned long arg)
5390 {
5391     gdth_ha_str *ha;
5392     Scsi_Cmnd *scp;
5393     ulong flags;
5394     char cmnd[MAX_COMMAND_SIZE];
5395     void __user *argp = (void __user *)arg;
5396
5397     memset(cmnd, 0xff, 12);
5398
5399     TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
5400
5401     switch (cmd) {
5402       case GDTIOCTL_CTRCNT:
5403       {
5404         int cnt = gdth_ctr_count;
5405         if (put_user(cnt, (int __user *)argp))
5406                 return -EFAULT;
5407         break;
5408       }
5409
5410       case GDTIOCTL_DRVERS:
5411       {
5412         int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
5413         if (put_user(ver, (int __user *)argp))
5414                 return -EFAULT;
5415         break;
5416       }
5417
5418       case GDTIOCTL_OSVERS:
5419       {
5420         gdth_ioctl_osvers osv;
5421
5422         osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
5423         osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
5424         osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
5425         if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
5426                 return -EFAULT;
5427         break;
5428       }
5429
5430       case GDTIOCTL_CTRTYPE:
5431       {
5432         gdth_ioctl_ctrtype ctrt;
5433
5434         if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
5435             ctrt.ionode >= gdth_ctr_count)
5436             return -EFAULT;
5437         ha = HADATA(gdth_ctr_tab[ctrt.ionode]);
5438         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
5439             ctrt.type = (unchar)((ha->stype>>20) - 0x10);
5440         } else {
5441             if (ha->type != GDT_PCIMPR) {
5442                 ctrt.type = (unchar)((ha->stype<<4) + 6);
5443             } else {
5444                 ctrt.type =
5445                     (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
5446                 if (ha->stype >= 0x300)
5447                     ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
5448                 else
5449                     ctrt.ext_type = 0x6000 | ha->stype;
5450             }
5451             ctrt.device_id = ha->pdev->device;
5452             ctrt.sub_device_id = ha->pdev->subsystem_device;
5453         }
5454         ctrt.info = ha->brd_phys;
5455         ctrt.oem_id = ha->oem_id;
5456         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
5457             return -EFAULT;
5458         break;
5459       }
5460
5461       case GDTIOCTL_GENERAL:
5462         return ioc_general(argp, cmnd);
5463
5464       case GDTIOCTL_EVENT:
5465         return ioc_event(argp);
5466
5467       case GDTIOCTL_LOCKDRV:
5468         return ioc_lockdrv(argp);
5469
5470       case GDTIOCTL_LOCKCHN:
5471       {
5472         gdth_ioctl_lockchn lchn;
5473         unchar i, j;
5474
5475         if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
5476             lchn.ionode >= gdth_ctr_count)
5477             return -EFAULT;
5478         ha = HADATA(gdth_ctr_tab[lchn.ionode]);
5479
5480         i = lchn.channel;
5481         if (i < ha->bus_cnt) {
5482             if (lchn.lock) {
5483                 spin_lock_irqsave(&ha->smp_lock, flags);
5484                 ha->raw[i].lock = 1;
5485                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5486                 for (j = 0; j < ha->tid_cnt; ++j) {
5487                     gdth_wait_completion(lchn.ionode, i, j);
5488                     gdth_stop_timeout(lchn.ionode, i, j);
5489                 }
5490             } else {
5491                 spin_lock_irqsave(&ha->smp_lock, flags);
5492                 ha->raw[i].lock = 0;
5493                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5494                 for (j = 0; j < ha->tid_cnt; ++j) {
5495                     gdth_start_timeout(lchn.ionode, i, j);
5496                     gdth_next(lchn.ionode);
5497                 }
5498             }
5499         }
5500         break;
5501       }
5502
5503       case GDTIOCTL_RESCAN:
5504         return ioc_rescan(argp, cmnd);
5505
5506       case GDTIOCTL_HDRLIST:
5507         return ioc_hdrlist(argp, cmnd);
5508
5509       case GDTIOCTL_RESET_BUS:
5510       {
5511         gdth_ioctl_reset res;
5512         int hanum, rval;
5513
5514         if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
5515             res.ionode >= gdth_ctr_count)
5516             return -EFAULT;
5517         hanum = res.ionode;
5518         ha = HADATA(gdth_ctr_tab[hanum]);
5519
5520 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5521         scp  = kmalloc(sizeof(*scp), GFP_KERNEL);
5522         if (!scp)
5523             return -ENOMEM;
5524         memset(scp, 0, sizeof(*scp));
5525         scp->device = ha->sdev;
5526         scp->cmd_len = 12;
5527         scp->use_sg = 0;
5528         scp->device->channel = virt_ctr ? 0 : res.number;
5529         rval = gdth_eh_bus_reset(scp);
5530         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5531         kfree(scp);
5532 #else
5533         scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5534         if (!scp)
5535             return -ENOMEM;
5536         scp->cmd_len = 12;
5537         scp->use_sg = 0;
5538         scp->channel = virt_ctr ? 0 : res.number;
5539         rval = gdth_eh_bus_reset(scp);
5540         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5541         scsi_release_command(scp);
5542 #endif
5543         if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
5544             return -EFAULT;
5545         break;
5546       }
5547
5548       case GDTIOCTL_RESET_DRV:
5549         return ioc_resetdrv(argp, cmnd);
5550
5551       default:
5552         break;
5553     }
5554     return 0;
5555 }
5556
5557
5558 /* flush routine */
5559 static void gdth_flush(int hanum)
5560 {
5561     int             i;
5562     gdth_ha_str     *ha;
5563     gdth_cmd_str    gdtcmd;
5564     char            cmnd[MAX_COMMAND_SIZE];
5565     memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5566
5567     TRACE2(("gdth_flush() hanum %d\n",hanum));
5568     ha = HADATA(gdth_ctr_tab[hanum]);
5569
5570     for (i = 0; i < MAX_HDRIVES; ++i) {
5571         if (ha->hdr[i].present) {
5572             gdtcmd.BoardNode = LOCALBOARD;
5573             gdtcmd.Service = CACHESERVICE;
5574             gdtcmd.OpCode = GDT_FLUSH;
5575             if (ha->cache_feat & GDT_64BIT) {
5576                 gdtcmd.u.cache64.DeviceNo = i;
5577                 gdtcmd.u.cache64.BlockNo = 1;
5578                 gdtcmd.u.cache64.sg_canz = 0;
5579             } else {
5580                 gdtcmd.u.cache.DeviceNo = i;
5581                 gdtcmd.u.cache.BlockNo = 1;
5582                 gdtcmd.u.cache.sg_canz = 0;
5583             }
5584             TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
5585
5586             gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 30, NULL);
5587         }
5588     }
5589 }
5590
5591 /* shutdown routine */
5592 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
5593 {
5594     int             hanum;
5595 #ifndef __alpha__
5596     gdth_cmd_str    gdtcmd;
5597     char            cmnd[MAX_COMMAND_SIZE];
5598 #endif
5599
5600     if (notifier_disabled)
5601         return NOTIFY_OK;
5602
5603     TRACE2(("gdth_halt() event %d\n",(int)event));
5604     if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5605         return NOTIFY_DONE;
5606
5607     notifier_disabled = 1;
5608     printk("GDT-HA: Flushing all host drives .. ");
5609     for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
5610         gdth_flush(hanum);
5611
5612 #ifndef __alpha__
5613         /* controller reset */
5614         memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5615         gdtcmd.BoardNode = LOCALBOARD;
5616         gdtcmd.Service = CACHESERVICE;
5617         gdtcmd.OpCode = GDT_RESET;
5618         TRACE2(("gdth_halt(): reset controller %d\n", hanum));
5619         gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 10, NULL);
5620 #endif
5621     }
5622     printk("Done.\n");
5623
5624 #ifdef GDTH_STATISTICS
5625     del_timer(&gdth_timer);
5626 #endif
5627     return NOTIFY_OK;
5628 }
5629
5630 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5631 /* configure lun */
5632 static int gdth_slave_configure(struct scsi_device *sdev)
5633 {
5634     scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
5635     sdev->skip_ms_page_3f = 1;
5636     sdev->skip_ms_page_8 = 1;
5637     return 0;
5638 }
5639 #endif
5640
5641 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5642 static struct scsi_host_template driver_template = {
5643 #else
5644 static Scsi_Host_Template driver_template = {
5645 #endif
5646         .proc_name              = "gdth",
5647         .proc_info              = gdth_proc_info,
5648         .name                   = "GDT SCSI Disk Array Controller",
5649         .detect                 = gdth_detect,
5650         .release                = gdth_release,
5651         .info                   = gdth_info,
5652         .queuecommand           = gdth_queuecommand,
5653         .eh_bus_reset_handler   = gdth_eh_bus_reset,
5654         .bios_param             = gdth_bios_param,
5655         .can_queue              = GDTH_MAXCMDS,
5656 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5657         .slave_configure        = gdth_slave_configure,
5658 #endif
5659         .this_id                = -1,
5660         .sg_tablesize           = GDTH_MAXSG,
5661         .cmd_per_lun            = GDTH_MAXC_P_L,
5662         .unchecked_isa_dma      = 1,
5663         .use_clustering         = ENABLE_CLUSTERING,
5664 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
5665         .use_new_eh_code        = 1,
5666 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
5667         .highmem_io             = 1,
5668 #endif
5669 #endif
5670 };
5671
5672 #include "scsi_module.c"
5673 #ifndef MODULE
5674 __setup("gdth=", option_setup);
5675 #endif