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/sched.h>
 391 #include <linux/interrupt.h>
 392 #include <linux/in.h>
 393 #include <linux/proc_fs.h>
 394 #include <linux/time.h>
 395 #include <linux/timer.h>
 396 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,6)
 397 #include <linux/dma-mapping.h>
 398 #else
 399 #define DMA_32BIT_MASK  0x00000000ffffffffULL
 400 #define DMA_64BIT_MASK  0xffffffffffffffffULL
 401 #endif
 402
 403 #ifdef GDTH_RTC
 404 #include <linux/mc146818rtc.h>
 405 #endif
 406 #include <linux/reboot.h>
 407
 408 #include <asm/dma.h>
 409 #include <asm/system.h>
 410 #include <asm/io.h>
 411 #include <asm/uaccess.h>
 412 #include <linux/spinlock.h>
 413 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 414 #include <linux/blkdev.h>
 415 #else
 416 #include <linux/blk.h>
 417 #include "sd.h"
 418 #endif
 419
 420 #include "scsi.h"
 421 #include <scsi/scsi_host.h>
 422 #include "gdth_kcompat.h"
 423 #include "gdth.h"
 424
 425 static void gdth_delay(int milliseconds);
 426 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
 427 static irqreturn_t gdth_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 428 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp);
 429 static int gdth_async_event(int hanum);
 430 static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
 431
 432 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority);
 433 static void gdth_next(int hanum);
 434 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b);
 435 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp);
 436 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
 437                                       ushort idx, gdth_evt_data *evt);
 438 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
 439 static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
 440                                gdth_evt_str *estr);
 441 static void gdth_clear_events(void);
 442
 443 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
 444                                     char *buffer,ushort count);
 445 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp);
 446 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive);
 447
 448 static int gdth_search_eisa(ushort eisa_adr);
 449 static int gdth_search_isa(ulong32 bios_adr);
 450 static int gdth_search_pci(gdth_pci_str *pcistr);
 451 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 452                             ushort vendor, ushort dev);
 453 static void gdth_sort_pci(gdth_pci_str *pcistr, int cnt);
 454 static int gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha);
 455 static int gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha);
 456 static int gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha);
 457
 458 static void gdth_enable_int(int hanum);
 459 static int gdth_get_status(unchar *pIStatus,int irq);
 460 static int gdth_test_busy(int hanum);
 461 static int gdth_get_cmd_index(int hanum);
 462 static void gdth_release_event(int hanum);
 463 static int gdth_wait(int hanum,int index,ulong32 time);
 464 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
 465                              ulong64 p2,ulong64 p3);
 466 static int gdth_search_drives(int hanum);
 467 static int gdth_analyse_hdrive(int hanum, ushort hdrive);
 468
 469 static const char *gdth_ctr_name(int hanum);
 470
 471 static int gdth_open(struct inode *inode, struct file *filep);
 472 static int gdth_close(struct inode *inode, struct file *filep);
 473 static int gdth_ioctl(struct inode *inode, struct file *filep,
 474                       unsigned int cmd, unsigned long arg);
 475
 476 static void gdth_flush(int hanum);
 477 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
 478 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *));
 479 static void gdth_scsi_done(struct scsi_cmnd *scp);
 480
 481 #ifdef DEBUG_GDTH
 482 static unchar   DebugState = DEBUG_GDTH;
 483
 484 #ifdef __SERIAL__
 485 #define MAX_SERBUF 160
 486 static void ser_init(void);
 487 static void ser_puts(char *str);
 488 static void ser_putc(char c);
 489 static int  ser_printk(const char *fmt, ...);
 490 static char strbuf[MAX_SERBUF+1];
 491 #ifdef __COM2__
 492 #define COM_BASE 0x2f8
 493 #else
 494 #define COM_BASE 0x3f8
 495 #endif
 496 static void ser_init()
 497 {
 498     unsigned port=COM_BASE;
 499
 500     outb(0x80,port+3);
 501     outb(0,port+1);
 502     /* 19200 Baud, if 9600: outb(12,port) */
 503     outb(6, port);
 504     outb(3,port+3);
 505     outb(0,port+1);
 506     /*
 507     ser_putc('I');
 508     ser_putc(' ');
 509     */
 510 }
 511
 512 static void ser_puts(char *str)
 513 {
 514     char *ptr;
 515
 516     ser_init();
 517     for (ptr=str;*ptr;++ptr)
 518         ser_putc(*ptr);
 519 }
 520
 521 static void ser_putc(char c)
 522 {
 523     unsigned port=COM_BASE;
 524
 525     while ((inb(port+5) & 0x20)==0);
 526     outb(c,port);
 527     if (c==0x0a)
 528     {
 529         while ((inb(port+5) & 0x20)==0);
 530         outb(0x0d,port);
 531     }
 532 }
 533
 534 static int ser_printk(const char *fmt, ...)
 535 {
 536     va_list args;
 537     int i;
 538
 539     va_start(args,fmt);
 540     i = vsprintf(strbuf,fmt,args);
 541     ser_puts(strbuf);
 542     va_end(args);
 543     return i;
 544 }
 545
 546 #define TRACE(a)    {if (DebugState==1) {ser_printk a;}}
 547 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {ser_printk a;}}
 548 #define TRACE3(a)   {if (DebugState!=0) {ser_printk a;}}
 549
 550 #else /* !__SERIAL__ */
 551 #define TRACE(a)    {if (DebugState==1) {printk a;}}
 552 #define TRACE2(a)   {if (DebugState==1 || DebugState==2) {printk a;}}
 553 #define TRACE3(a)   {if (DebugState!=0) {printk a;}}
 554 #endif
 555
 556 #else /* !DEBUG */
 557 #define TRACE(a)
 558 #define TRACE2(a)
 559 #define TRACE3(a)
 560 #endif
 561
 562 #ifdef GDTH_STATISTICS
 563 static ulong32 max_rq=0, max_index=0, max_sg=0;
 564 #ifdef INT_COAL
 565 static ulong32 max_int_coal=0;
 566 #endif
 567 static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
 568 static struct timer_list gdth_timer;
 569 #endif
 570
 571 #define PTR2USHORT(a)   (ushort)(ulong)(a)
 572 #define GDTOFFSOF(a,b)  (size_t)&(((a*)0)->b)
 573 #define INDEX_OK(i,t)   ((i)<ARRAY_SIZE(t))
 574
 575 #define NUMDATA(a)      ( (gdth_num_str  *)((a)->hostdata))
 576 #define HADATA(a)       (&((gdth_ext_str *)((a)->hostdata))->haext)
 577 #define CMDDATA(a)      (&((gdth_ext_str *)((a)->hostdata))->cmdext)
 578
 579 #define BUS_L2P(a,b)    ((b)>(a)->virt_bus ? (b-1):(b))
 580
 581 #define gdth_readb(addr)        readb(addr)
 582 #define gdth_readw(addr)        readw(addr)
 583 #define gdth_readl(addr)        readl(addr)
 584 #define gdth_writeb(b,addr)     writeb((b),(addr))
 585 #define gdth_writew(b,addr)     writew((b),(addr))
 586 #define gdth_writel(b,addr)     writel((b),(addr))
 587
 588 static unchar   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
 589 static unchar   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
 590 static unchar   gdth_polling;                           /* polling if TRUE */
 591 static unchar   gdth_from_wait  = FALSE;                /* gdth_wait() */
 592 static int      wait_index,wait_hanum;                  /* gdth_wait() */
 593 static int      gdth_ctr_count  = 0;                    /* controller count */
 594 static int      gdth_ctr_vcount = 0;                    /* virt. ctr. count */
 595 static int      gdth_ctr_released = 0;                  /* gdth_release() */
 596 static struct Scsi_Host *gdth_ctr_tab[MAXHA];           /* controller table */
 597 static struct Scsi_Host *gdth_ctr_vtab[MAXHA*MAXBUS];   /* virt. ctr. table */
 598 static unchar   gdth_write_through = FALSE;             /* write through */
 599 static gdth_evt_str ebuffer[MAX_EVENTS];                /* event buffer */
 600 static int elastidx;
 601 static int eoldidx;
 602 static int major;
 603
 604 #define DIN     1                               /* IN data direction */
 605 #define DOU     2                               /* OUT data direction */
 606 #define DNO     DIN                             /* no data transfer */
 607 #define DUN     DIN                             /* unknown data direction */
 608 static unchar gdth_direction_tab[0x100] = {
 609     DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
 610     DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
 611     DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
 612     DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
 613     DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
 614     DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
 615     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 616     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 617     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 618     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
 619     DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
 620     DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 621     DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 622     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
 623     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
 624     DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
 625 };
 626
 627 /* LILO and modprobe/insmod parameters */
 628 /* IRQ list for GDT3000/3020 EISA controllers */
 629 static int irq[MAXHA] __initdata =
 630 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
 631  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 632 /* disable driver flag */
 633 static int disable __initdata = 0;
 634 /* reserve flag */
 635 static int reserve_mode = 1;
 636 /* reserve list */
 637 static int reserve_list[MAX_RES_ARGS] =
 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,0xff,0xff,
 640  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 641 /* scan order for PCI controllers */
 642 static int reverse_scan = 0;
 643 /* virtual channel for the host drives */
 644 static int hdr_channel = 0;
 645 /* max. IDs per channel */
 646 static int max_ids = MAXID;
 647 /* rescan all IDs */
 648 static int rescan = 0;
 649 /* map channels to virtual controllers */
 650 static int virt_ctr = 0;
 651 /* shared access */
 652 static int shared_access = 1;
 653 /* enable support for EISA and ISA controllers */
 654 static int probe_eisa_isa = 0;
 655 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
 656 static int force_dma32 = 0;
 657
 658 /* parameters for modprobe/insmod */
 659 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11)
 660 module_param_array(irq, int, NULL, 0);
 661 module_param(disable, int, 0);
 662 module_param(reserve_mode, int, 0);
 663 module_param_array(reserve_list, int, NULL, 0);
 664 module_param(reverse_scan, int, 0);
 665 module_param(hdr_channel, int, 0);
 666 module_param(max_ids, int, 0);
 667 module_param(rescan, int, 0);
 668 module_param(virt_ctr, int, 0);
 669 module_param(shared_access, int, 0);
 670 module_param(probe_eisa_isa, int, 0);
 671 module_param(force_dma32, int, 0);
 672 #else
 673 MODULE_PARM(irq, "i");
 674 MODULE_PARM(disable, "i");
 675 MODULE_PARM(reserve_mode, "i");
 676 MODULE_PARM(reserve_list, "4-" __MODULE_STRING(MAX_RES_ARGS) "i");
 677 MODULE_PARM(reverse_scan, "i");
 678 MODULE_PARM(hdr_channel, "i");
 679 MODULE_PARM(max_ids, "i");
 680 MODULE_PARM(rescan, "i");
 681 MODULE_PARM(virt_ctr, "i");
 682 MODULE_PARM(shared_access, "i");
 683 MODULE_PARM(probe_eisa_isa, "i");
 684 MODULE_PARM(force_dma32, "i");
 685 #endif
 686 MODULE_AUTHOR("Achim Leubner");
 687 MODULE_LICENSE("GPL");
 688 MODULE_VERSION(GDTH_VERSION_STR);
 689
 690 /* ioctl interface */
 691 static struct file_operations gdth_fops = {
 692     .ioctl   = gdth_ioctl,
 693     .open    = gdth_open,
 694     .release = gdth_close,
 695 };
 696
 697 #include "gdth_proc.h"
 698 #include "gdth_proc.c"
 699
 700 /* notifier block to get a notify on system shutdown/halt/reboot */
 701 static struct notifier_block gdth_notifier = {
 702     gdth_halt, NULL, 0
 703 };
 704 static int notifier_disabled = 0;
 705
 706 static void gdth_delay(int milliseconds)
 707 {
 708     if (milliseconds == 0) {
 709         udelay(1);
 710     } else {
 711         mdelay(milliseconds);
 712     }
 713 }
 714
 715 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 716 static void gdth_scsi_done(struct scsi_cmnd *scp)
 717 {
 718     TRACE2(("gdth_scsi_done()\n"));
 719
 720     if (scp->request)
 721         complete((struct completion *)scp->request);
 722 }
 723
 724 int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
 725                    int timeout, u32 *info)
 726 {
 727     Scsi_Cmnd *scp;
 728     DECLARE_COMPLETION_ONSTACK(wait);
 729     int rval;
 730
 731     scp = kmalloc(sizeof(*scp), GFP_KERNEL);
 732     if (!scp)
 733         return -ENOMEM;
 734     memset(scp, 0, sizeof(*scp));
 735     scp->device = sdev;
 736     /* use request field to save the ptr. to completion struct. */
 737     scp->request = (struct request *)&wait;
 738     scp->timeout_per_command = timeout*HZ;
 739     scp->request_buffer = gdtcmd;
 740     scp->cmd_len = 12;
 741     memcpy(scp->cmnd, cmnd, 12);
 742     scp->SCp.this_residual = IOCTL_PRI;   /* priority */
 743     scp->done = gdth_scsi_done; /* some fn. test this */
 744     gdth_queuecommand(scp, gdth_scsi_done);
 745     wait_for_completion(&wait);
 746
 747     rval = scp->SCp.Status;
 748     if (info)
 749         *info = scp->SCp.Message;
 750     kfree(scp);
 751     return rval;
 752 }
 753 #else
 754 static void gdth_scsi_done(Scsi_Cmnd *scp)
 755 {
 756     TRACE2(("gdth_scsi_done()\n"));
 757
 758     scp->request.rq_status = RQ_SCSI_DONE;
 759     if (scp->request.waiting)
 760         complete(scp->request.waiting);
 761 }
 762
 763 int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
 764                    int timeout, u32 *info)
 765 {
 766     Scsi_Cmnd *scp = scsi_allocate_device(sdev, 1, FALSE);
 767     unsigned bufflen = gdtcmd ? sizeof(gdth_cmd_str) : 0;
 768     DECLARE_COMPLETION_ONSTACK(wait);
 769     int rval;
 770
 771     if (!scp)
 772         return -ENOMEM;
 773     scp->cmd_len = 12;
 774     scp->use_sg = 0;
 775     scp->SCp.this_residual = IOCTL_PRI;   /* priority */
 776     scp->request.rq_status = RQ_SCSI_BUSY;
 777     scp->request.waiting = &wait;
 778     scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
 779     wait_for_completion(&wait);
 780
 781     rval = scp->SCp.Status;
 782     if (info)
 783         *info = scp->SCp.Message;
 784
 785     scsi_release_command(scp);
 786     return rval;
 787 }
 788 #endif
 789
 790 int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
 791                  int timeout, u32 *info)
 792 {
 793     struct scsi_device *sdev = scsi_get_host_dev(shost);
 794     int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
 795
 796     scsi_free_host_dev(sdev);
 797     return rval;
 798 }
 799
 800 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
 801 {
 802     *cyls = size /HEADS/SECS;
 803     if (*cyls <= MAXCYLS) {
 804         *heads = HEADS;
 805         *secs = SECS;
 806     } else {                                        /* too high for 64*32 */
 807         *cyls = size /MEDHEADS/MEDSECS;
 808         if (*cyls <= MAXCYLS) {
 809             *heads = MEDHEADS;
 810             *secs = MEDSECS;
 811         } else {                                    /* too high for 127*63 */
 812             *cyls = size /BIGHEADS/BIGSECS;
 813             *heads = BIGHEADS;
 814             *secs = BIGSECS;
 815         }
 816     }
 817 }
 818
 819 /* controller search and initialization functions */
 820
 821 static int __init gdth_search_eisa(ushort eisa_adr)
 822 {
 823     ulong32 id;
 824
 825     TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
 826     id = inl(eisa_adr+ID0REG);
 827     if (id == GDT3A_ID || id == GDT3B_ID) {     /* GDT3000A or GDT3000B */
 828         if ((inb(eisa_adr+EISAREG) & 8) == 0)
 829             return 0;                           /* not EISA configured */
 830         return 1;
 831     }
 832     if (id == GDT3_ID)                          /* GDT3000 */
 833         return 1;
 834
 835     return 0;
 836 }
 837
 838
 839 static int __init gdth_search_isa(ulong32 bios_adr)
 840 {
 841     void __iomem *addr;
 842     ulong32 id;
 843
 844     TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
 845     if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
 846         id = gdth_readl(addr);
 847         iounmap(addr);
 848         if (id == GDT2_ID)                          /* GDT2000 */
 849             return 1;
 850     }
 851     return 0;
 852 }
 853
 854
 855 static int __init gdth_search_pci(gdth_pci_str *pcistr)
 856 {
 857     ushort device, cnt;
 858
 859     TRACE(("gdth_search_pci()\n"));
 860
 861     cnt = 0;
 862     for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
 863         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 864     for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP;
 865          device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
 866         gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
 867     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 868                     PCI_DEVICE_ID_VORTEX_GDTNEWRX);
 869     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
 870                     PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
 871     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 872                     PCI_DEVICE_ID_INTEL_SRC);
 873     gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
 874                     PCI_DEVICE_ID_INTEL_SRC_XSCALE);
 875     return cnt;
 876 }
 877
 878 /* Vortex only makes RAID controllers.
 879  * We do not really want to specify all 550 ids here, so wildcard match.
 880  */
 881 static struct pci_device_id gdthtable[] __attribute_used__ = {
 882     {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
 883     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID},
 884     {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID},
 885     {0}
 886 };
 887 MODULE_DEVICE_TABLE(pci,gdthtable);
 888
 889 static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
 890                                    ushort vendor, ushort device)
 891 {
 892     ulong base0, base1, base2;
 893     struct pci_dev *pdev;
 894
 895     TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
 896           *cnt, vendor, device));
 897
 898     pdev = NULL;
 899     while ((pdev = pci_find_device(vendor, device, pdev))
 900            != NULL) {
 901         if (pci_enable_device(pdev))
 902             continue;
 903         if (*cnt >= MAXHA)
 904             return;
 905         /* GDT PCI controller found, resources are already in pdev */
 906         pcistr[*cnt].pdev = pdev;
 907         pcistr[*cnt].vendor_id = vendor;
 908         pcistr[*cnt].device_id = device;
 909         pcistr[*cnt].subdevice_id = pdev->subsystem_device;
 910         pcistr[*cnt].bus = pdev->bus->number;
 911         pcistr[*cnt].device_fn = pdev->devfn;
 912         pcistr[*cnt].irq = pdev->irq;
 913         base0 = pci_resource_flags(pdev, 0);
 914         base1 = pci_resource_flags(pdev, 1);
 915         base2 = pci_resource_flags(pdev, 2);
 916         if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B ||   /* GDT6000/B */
 917             device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) {  /* MPR */
 918             if (!(base0 & IORESOURCE_MEM))
 919                 continue;
 920             pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
 921         } else {                                  /* GDT6110, GDT6120, .. */
 922             if (!(base0 & IORESOURCE_MEM) ||
 923                 !(base2 & IORESOURCE_MEM) ||
 924                 !(base1 & IORESOURCE_IO))
 925                 continue;
 926             pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
 927             pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
 928             pcistr[*cnt].io    = pci_resource_start(pdev, 1);
 929         }
 930         TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
 931                 pcistr[*cnt].bus, PCI_SLOT(pcistr[*cnt].device_fn),
 932                 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
 933         (*cnt)++;
 934     }
 935 }
 936
 937
 938 static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
 939 {
 940     gdth_pci_str temp;
 941     int i, changed;
 942
 943     TRACE(("gdth_sort_pci() cnt %d\n",cnt));
 944     if (cnt == 0)
 945         return;
 946
 947     do {
 948         changed = FALSE;
 949         for (i = 0; i < cnt-1; ++i) {
 950             if (!reverse_scan) {
 951                 if ((pcistr[i].bus > pcistr[i+1].bus) ||
 952                     (pcistr[i].bus == pcistr[i+1].bus &&
 953                      PCI_SLOT(pcistr[i].device_fn) >
 954                      PCI_SLOT(pcistr[i+1].device_fn))) {
 955                     temp = pcistr[i];
 956                     pcistr[i] = pcistr[i+1];
 957                     pcistr[i+1] = temp;
 958                     changed = TRUE;
 959                 }
 960             } else {
 961                 if ((pcistr[i].bus < pcistr[i+1].bus) ||
 962                     (pcistr[i].bus == pcistr[i+1].bus &&
 963                      PCI_SLOT(pcistr[i].device_fn) <
 964                      PCI_SLOT(pcistr[i+1].device_fn))) {
 965                     temp = pcistr[i];
 966                     pcistr[i] = pcistr[i+1];
 967                     pcistr[i+1] = temp;
 968                     changed = TRUE;
 969                 }
 970             }
 971         }
 972     } while (changed);
 973 }
 974
 975
 976 static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
 977 {
 978     ulong32 retries,id;
 979     unchar prot_ver,eisacf,i,irq_found;
 980
 981     TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
 982
 983     /* disable board interrupts, deinitialize services */
 984     outb(0xff,eisa_adr+EDOORREG);
 985     outb(0x00,eisa_adr+EDENABREG);
 986     outb(0x00,eisa_adr+EINTENABREG);
 987
 988     outb(0xff,eisa_adr+LDOORREG);
 989     retries = INIT_RETRIES;
 990     gdth_delay(20);
 991     while (inb(eisa_adr+EDOORREG) != 0xff) {
 992         if (--retries == 0) {
 993             printk("GDT-EISA: Initialization error (DEINIT failed)\n");
 994             return 0;
 995         }
 996         gdth_delay(1);
 997         TRACE2(("wait for DEINIT: retries=%d\n",retries));
 998     }
 999     prot_ver = inb(eisa_adr+MAILBOXREG);
1000     outb(0xff,eisa_adr+EDOORREG);
1001     if (prot_ver != PROTOCOL_VERSION) {
1002         printk("GDT-EISA: Illegal protocol version\n");
1003         return 0;
1004     }
1005     ha->bmic = eisa_adr;
1006     ha->brd_phys = (ulong32)eisa_adr >> 12;
1007
1008     outl(0,eisa_adr+MAILBOXREG);
1009     outl(0,eisa_adr+MAILBOXREG+4);
1010     outl(0,eisa_adr+MAILBOXREG+8);
1011     outl(0,eisa_adr+MAILBOXREG+12);
1012
1013     /* detect IRQ */
1014     if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
1015         ha->oem_id = OEM_ID_ICP;
1016         ha->type = GDT_EISA;
1017         ha->stype = id;
1018         outl(1,eisa_adr+MAILBOXREG+8);
1019         outb(0xfe,eisa_adr+LDOORREG);
1020         retries = INIT_RETRIES;
1021         gdth_delay(20);
1022         while (inb(eisa_adr+EDOORREG) != 0xfe) {
1023             if (--retries == 0) {
1024                 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
1025                 return 0;
1026             }
1027             gdth_delay(1);
1028         }
1029         ha->irq = inb(eisa_adr+MAILBOXREG);
1030         outb(0xff,eisa_adr+EDOORREG);
1031         TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
1032         /* check the result */
1033         if (ha->irq == 0) {
1034                 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
1035                 for (i = 0, irq_found = FALSE;
1036                      i < MAXHA && irq[i] != 0xff; ++i) {
1037                 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
1038                     irq_found = TRUE;
1039                     break;
1040                 }
1041                 }
1042             if (irq_found) {
1043                 ha->irq = irq[i];
1044                 irq[i] = 0;
1045                 printk("GDT-EISA: Can not detect controller IRQ,\n");
1046                 printk("Use IRQ setting from command line (IRQ = %d)\n",
1047                        ha->irq);
1048             } else {
1049                 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
1050                 printk("the controller BIOS or use command line parameters\n");
1051                 return 0;
1052             }
1053         }
1054     } else {
1055         eisacf = inb(eisa_adr+EISAREG) & 7;
1056         if (eisacf > 4)                         /* level triggered */
1057             eisacf -= 4;
1058         ha->irq = gdth_irq_tab[eisacf];
1059         ha->oem_id = OEM_ID_ICP;
1060         ha->type = GDT_EISA;
1061         ha->stype = id;
1062     }
1063
1064     ha->dma64_support = 0;
1065     return 1;
1066 }
1067
1068
1069 static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
1070 {
1071     register gdt2_dpram_str __iomem *dp2_ptr;
1072     int i;
1073     unchar irq_drq,prot_ver;
1074     ulong32 retries;
1075
1076     TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
1077
1078     ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
1079     if (ha->brd == NULL) {
1080         printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
1081         return 0;
1082     }
1083     dp2_ptr = ha->brd;
1084     gdth_writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
1085     /* reset interface area */
1086     memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
1087     if (gdth_readl(&dp2_ptr->u) != 0) {
1088         printk("GDT-ISA: Initialization error (DPMEM write error)\n");
1089         iounmap(ha->brd);
1090         return 0;
1091     }
1092
1093     /* disable board interrupts, read DRQ and IRQ */
1094     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1095     gdth_writeb(0x00, &dp2_ptr->io.irqen);
1096     gdth_writeb(0x00, &dp2_ptr->u.ic.S_Status);
1097     gdth_writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
1098
1099     irq_drq = gdth_readb(&dp2_ptr->io.rq);
1100     for (i=0; i<3; ++i) {
1101         if ((irq_drq & 1)==0)
1102             break;
1103         irq_drq >>= 1;
1104     }
1105     ha->drq = gdth_drq_tab[i];
1106
1107     irq_drq = gdth_readb(&dp2_ptr->io.rq) >> 3;
1108     for (i=1; i<5; ++i) {
1109         if ((irq_drq & 1)==0)
1110             break;
1111         irq_drq >>= 1;
1112     }
1113     ha->irq = gdth_irq_tab[i];
1114
1115     /* deinitialize services */
1116     gdth_writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
1117     gdth_writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
1118     gdth_writeb(0, &dp2_ptr->io.event);
1119     retries = INIT_RETRIES;
1120     gdth_delay(20);
1121     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1122         if (--retries == 0) {
1123             printk("GDT-ISA: Initialization error (DEINIT failed)\n");
1124             iounmap(ha->brd);
1125             return 0;
1126         }
1127         gdth_delay(1);
1128     }
1129     prot_ver = (unchar)gdth_readl(&dp2_ptr->u.ic.S_Info[0]);
1130     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1131     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1132     if (prot_ver != PROTOCOL_VERSION) {
1133         printk("GDT-ISA: Illegal protocol version\n");
1134         iounmap(ha->brd);
1135         return 0;
1136     }
1137
1138     ha->oem_id = OEM_ID_ICP;
1139     ha->type = GDT_ISA;
1140     ha->ic_all_size = sizeof(dp2_ptr->u);
1141     ha->stype= GDT2_ID;
1142     ha->brd_phys = bios_adr >> 4;
1143
1144     /* special request to controller BIOS */
1145     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
1146     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
1147     gdth_writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
1148     gdth_writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
1149     gdth_writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
1150     gdth_writeb(0, &dp2_ptr->io.event);
1151     retries = INIT_RETRIES;
1152     gdth_delay(20);
1153     while (gdth_readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1154         if (--retries == 0) {
1155             printk("GDT-ISA: Initialization error\n");
1156             iounmap(ha->brd);
1157             return 0;
1158         }
1159         gdth_delay(1);
1160     }
1161     gdth_writeb(0, &dp2_ptr->u.ic.Status);
1162     gdth_writeb(0xff, &dp2_ptr->io.irqdel);
1163
1164     ha->dma64_support = 0;
1165     return 1;
1166 }
1167
1168
1169 static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
1170 {
1171     register gdt6_dpram_str __iomem *dp6_ptr;
1172     register gdt6c_dpram_str __iomem *dp6c_ptr;
1173     register gdt6m_dpram_str __iomem *dp6m_ptr;
1174     ulong32 retries;
1175     unchar prot_ver;
1176     ushort command;
1177     int i, found = FALSE;
1178
1179     TRACE(("gdth_init_pci()\n"));
1180
1181     if (pcistr->vendor_id == PCI_VENDOR_ID_INTEL)
1182         ha->oem_id = OEM_ID_INTEL;
1183     else
1184         ha->oem_id = OEM_ID_ICP;
1185     ha->brd_phys = (pcistr->bus << 8) | (pcistr->device_fn & 0xf8);
1186     ha->stype = (ulong32)pcistr->device_id;
1187     ha->subdevice_id = pcistr->subdevice_id;
1188     ha->irq = pcistr->irq;
1189     ha->pdev = pcistr->pdev;
1190
1191     if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6000B) {  /* GDT6000/B */
1192         TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1193         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
1194         if (ha->brd == NULL) {
1195             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1196             return 0;
1197         }
1198         /* check and reset interface area */
1199         dp6_ptr = ha->brd;
1200         gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1201         if (gdth_readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1202             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1203                    pcistr->dpmem);
1204             found = FALSE;
1205             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1206                 iounmap(ha->brd);
1207                 ha->brd = ioremap(i, sizeof(ushort));
1208                 if (ha->brd == NULL) {
1209                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1210                     return 0;
1211                 }
1212                 if (gdth_readw(ha->brd) != 0xffff) {
1213                     TRACE2(("init_pci_old() address 0x%x busy\n", i));
1214                     continue;
1215                 }
1216                 iounmap(ha->brd);
1217                 pci_write_config_dword(pcistr->pdev,
1218                                        PCI_BASE_ADDRESS_0, i);
1219                 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
1220                 if (ha->brd == NULL) {
1221                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1222                     return 0;
1223                 }
1224                 dp6_ptr = ha->brd;
1225                 gdth_writel(DPMEM_MAGIC, &dp6_ptr->u);
1226                 if (gdth_readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1227                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1228                     found = TRUE;
1229                     break;
1230                 }
1231             }
1232             if (!found) {
1233                 printk("GDT-PCI: No free address found!\n");
1234                 iounmap(ha->brd);
1235                 return 0;
1236             }
1237         }
1238         memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
1239         if (gdth_readl(&dp6_ptr->u) != 0) {
1240             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1241             iounmap(ha->brd);
1242             return 0;
1243         }
1244
1245         /* disable board interrupts, deinit services */
1246         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1247         gdth_writeb(0x00, &dp6_ptr->io.irqen);
1248         gdth_writeb(0x00, &dp6_ptr->u.ic.S_Status);
1249         gdth_writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
1250
1251         gdth_writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
1252         gdth_writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
1253         gdth_writeb(0, &dp6_ptr->io.event);
1254         retries = INIT_RETRIES;
1255         gdth_delay(20);
1256         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1257             if (--retries == 0) {
1258                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1259                 iounmap(ha->brd);
1260                 return 0;
1261             }
1262             gdth_delay(1);
1263         }
1264         prot_ver = (unchar)gdth_readl(&dp6_ptr->u.ic.S_Info[0]);
1265         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1266         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1267         if (prot_ver != PROTOCOL_VERSION) {
1268             printk("GDT-PCI: Illegal protocol version\n");
1269             iounmap(ha->brd);
1270             return 0;
1271         }
1272
1273         ha->type = GDT_PCI;
1274         ha->ic_all_size = sizeof(dp6_ptr->u);
1275
1276         /* special command to controller BIOS */
1277         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1278         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1279         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1280         gdth_writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1281         gdth_writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1282         gdth_writeb(0, &dp6_ptr->io.event);
1283         retries = INIT_RETRIES;
1284         gdth_delay(20);
1285         while (gdth_readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1286             if (--retries == 0) {
1287                 printk("GDT-PCI: Initialization error\n");
1288                 iounmap(ha->brd);
1289                 return 0;
1290             }
1291             gdth_delay(1);
1292         }
1293         gdth_writeb(0, &dp6_ptr->u.ic.S_Status);
1294         gdth_writeb(0xff, &dp6_ptr->io.irqdel);
1295
1296         ha->dma64_support = 0;
1297
1298     } else if (ha->stype <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1299         ha->plx = (gdt6c_plx_regs *)pcistr->io;
1300         TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1301             pcistr->dpmem,ha->irq));
1302         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1303         if (ha->brd == NULL) {
1304             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1305             iounmap(ha->brd);
1306             return 0;
1307         }
1308         /* check and reset interface area */
1309         dp6c_ptr = ha->brd;
1310         gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1311         if (gdth_readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1312             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1313                    pcistr->dpmem);
1314             found = FALSE;
1315             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1316                 iounmap(ha->brd);
1317                 ha->brd = ioremap(i, sizeof(ushort));
1318                 if (ha->brd == NULL) {
1319                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1320                     return 0;
1321                 }
1322                 if (gdth_readw(ha->brd) != 0xffff) {
1323                     TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1324                     continue;
1325                 }
1326                 iounmap(ha->brd);
1327                 pci_write_config_dword(pcistr->pdev,
1328                                        PCI_BASE_ADDRESS_2, i);
1329                 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1330                 if (ha->brd == NULL) {
1331                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1332                     return 0;
1333                 }
1334                 dp6c_ptr = ha->brd;
1335                 gdth_writel(DPMEM_MAGIC, &dp6c_ptr->u);
1336                 if (gdth_readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1337                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1338                     found = TRUE;
1339                     break;
1340                 }
1341             }
1342             if (!found) {
1343                 printk("GDT-PCI: No free address found!\n");
1344                 iounmap(ha->brd);
1345                 return 0;
1346             }
1347         }
1348         memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
1349         if (gdth_readl(&dp6c_ptr->u) != 0) {
1350             printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1351             iounmap(ha->brd);
1352             return 0;
1353         }
1354
1355         /* disable board interrupts, deinit services */
1356         outb(0x00,PTR2USHORT(&ha->plx->control1));
1357         outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1358
1359         gdth_writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1360         gdth_writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1361
1362         gdth_writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1363         gdth_writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1364
1365         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1366
1367         retries = INIT_RETRIES;
1368         gdth_delay(20);
1369         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1370             if (--retries == 0) {
1371                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1372                 iounmap(ha->brd);
1373                 return 0;
1374             }
1375             gdth_delay(1);
1376         }
1377         prot_ver = (unchar)gdth_readl(&dp6c_ptr->u.ic.S_Info[0]);
1378         gdth_writeb(0, &dp6c_ptr->u.ic.Status);
1379         if (prot_ver != PROTOCOL_VERSION) {
1380             printk("GDT-PCI: Illegal protocol version\n");
1381             iounmap(ha->brd);
1382             return 0;
1383         }
1384
1385         ha->type = GDT_PCINEW;
1386         ha->ic_all_size = sizeof(dp6c_ptr->u);
1387
1388         /* special command to controller BIOS */
1389         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1390         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1391         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1392         gdth_writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1393         gdth_writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1394
1395         outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1396
1397         retries = INIT_RETRIES;
1398         gdth_delay(20);
1399         while (gdth_readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1400             if (--retries == 0) {
1401                 printk("GDT-PCI: Initialization error\n");
1402                 iounmap(ha->brd);
1403                 return 0;
1404             }
1405             gdth_delay(1);
1406         }
1407         gdth_writeb(0, &dp6c_ptr->u.ic.S_Status);
1408
1409         ha->dma64_support = 0;
1410
1411     } else {                                            /* MPR */
1412         TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1413         ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1414         if (ha->brd == NULL) {
1415             printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1416             return 0;
1417         }
1418
1419         /* manipulate config. space to enable DPMEM, start RP controller */
1420         pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1421         command |= 6;
1422         pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1423         if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1424             pci_resource_start(pcistr->pdev, 8) = 0UL;
1425         i = 0xFEFF0001UL;
1426         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1427         gdth_delay(1);
1428         pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1429                                pci_resource_start(pcistr->pdev, 8));
1430
1431         dp6m_ptr = ha->brd;
1432
1433         /* Ensure that it is safe to access the non HW portions of DPMEM.
1434          * Aditional check needed for Xscale based RAID controllers */
1435         while( ((int)gdth_readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1436             gdth_delay(1);
1437
1438         /* check and reset interface area */
1439         gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1440         if (gdth_readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1441             printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1442                    pcistr->dpmem);
1443             found = FALSE;
1444             for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1445                 iounmap(ha->brd);
1446                 ha->brd = ioremap(i, sizeof(ushort));
1447                 if (ha->brd == NULL) {
1448                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1449                     return 0;
1450                 }
1451                 if (gdth_readw(ha->brd) != 0xffff) {
1452                     TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1453                     continue;
1454                 }
1455                 iounmap(ha->brd);
1456                 pci_write_config_dword(pcistr->pdev,
1457                                        PCI_BASE_ADDRESS_0, i);
1458                 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1459                 if (ha->brd == NULL) {
1460                     printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1461                     return 0;
1462                 }
1463                 dp6m_ptr = ha->brd;
1464                 gdth_writel(DPMEM_MAGIC, &dp6m_ptr->u);
1465                 if (gdth_readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1466                     printk("GDT-PCI: Use free address at 0x%x\n", i);
1467                     found = TRUE;
1468                     break;
1469                 }
1470             }
1471             if (!found) {
1472                 printk("GDT-PCI: No free address found!\n");
1473                 iounmap(ha->brd);
1474                 return 0;
1475             }
1476         }
1477         memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1478
1479         /* disable board interrupts, deinit services */
1480         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1481                     &dp6m_ptr->i960r.edoor_en_reg);
1482         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1483         gdth_writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1484         gdth_writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1485
1486         gdth_writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1487         gdth_writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1488         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1489         retries = INIT_RETRIES;
1490         gdth_delay(20);
1491         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1492             if (--retries == 0) {
1493                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1494                 iounmap(ha->brd);
1495                 return 0;
1496             }
1497             gdth_delay(1);
1498         }
1499         prot_ver = (unchar)gdth_readl(&dp6m_ptr->u.ic.S_Info[0]);
1500         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1501         if (prot_ver != PROTOCOL_VERSION) {
1502             printk("GDT-PCI: Illegal protocol version\n");
1503             iounmap(ha->brd);
1504             return 0;
1505         }
1506
1507         ha->type = GDT_PCIMPR;
1508         ha->ic_all_size = sizeof(dp6m_ptr->u);
1509
1510         /* special command to controller BIOS */
1511         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1512         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1513         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1514         gdth_writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1515         gdth_writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1516         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1517         retries = INIT_RETRIES;
1518         gdth_delay(20);
1519         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1520             if (--retries == 0) {
1521                 printk("GDT-PCI: Initialization error\n");
1522                 iounmap(ha->brd);
1523                 return 0;
1524             }
1525             gdth_delay(1);
1526         }
1527         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1528
1529         /* read FW version to detect 64-bit DMA support */
1530         gdth_writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1531         gdth_writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1532         retries = INIT_RETRIES;
1533         gdth_delay(20);
1534         while (gdth_readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1535             if (--retries == 0) {
1536                 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1537                 iounmap(ha->brd);
1538                 return 0;
1539             }
1540             gdth_delay(1);
1541         }
1542         prot_ver = (unchar)(gdth_readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1543         gdth_writeb(0, &dp6m_ptr->u.ic.S_Status);
1544         if (prot_ver < 0x2b)      /* FW < x.43: no 64-bit DMA support */
1545             ha->dma64_support = 0;
1546         else
1547             ha->dma64_support = 1;
1548     }
1549
1550     return 1;
1551 }
1552
1553
1554 /* controller protocol functions */
1555
1556 static void __init gdth_enable_int(int hanum)
1557 {
1558     gdth_ha_str *ha;
1559     ulong flags;
1560     gdt2_dpram_str __iomem *dp2_ptr;
1561     gdt6_dpram_str __iomem *dp6_ptr;
1562     gdt6m_dpram_str __iomem *dp6m_ptr;
1563
1564     TRACE(("gdth_enable_int() hanum %d\n",hanum));
1565     ha = HADATA(gdth_ctr_tab[hanum]);
1566     spin_lock_irqsave(&ha->smp_lock, flags);
1567
1568     if (ha->type == GDT_EISA) {
1569         outb(0xff, ha->bmic + EDOORREG);
1570         outb(0xff, ha->bmic + EDENABREG);
1571         outb(0x01, ha->bmic + EINTENABREG);
1572     } else if (ha->type == GDT_ISA) {
1573         dp2_ptr = ha->brd;
1574         gdth_writeb(1, &dp2_ptr->io.irqdel);
1575         gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1576         gdth_writeb(1, &dp2_ptr->io.irqen);
1577     } else if (ha->type == GDT_PCI) {
1578         dp6_ptr = ha->brd;
1579         gdth_writeb(1, &dp6_ptr->io.irqdel);
1580         gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1581         gdth_writeb(1, &dp6_ptr->io.irqen);
1582     } else if (ha->type == GDT_PCINEW) {
1583         outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1584         outb(0x03, PTR2USHORT(&ha->plx->control1));
1585     } else if (ha->type == GDT_PCIMPR) {
1586         dp6m_ptr = ha->brd;
1587         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1588         gdth_writeb(gdth_readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1589                     &dp6m_ptr->i960r.edoor_en_reg);
1590     }
1591     spin_unlock_irqrestore(&ha->smp_lock, flags);
1592 }
1593
1594
1595 static int gdth_get_status(unchar *pIStatus,int irq)
1596 {
1597     register gdth_ha_str *ha;
1598     int i;
1599
1600     TRACE(("gdth_get_status() irq %d ctr_count %d\n",
1601            irq,gdth_ctr_count));
1602
1603     *pIStatus = 0;
1604     for (i=0; i<gdth_ctr_count; ++i) {
1605         ha = HADATA(gdth_ctr_tab[i]);
1606         if (ha->irq != (unchar)irq)             /* check IRQ */
1607             continue;
1608         if (ha->type == GDT_EISA)
1609             *pIStatus = inb((ushort)ha->bmic + EDOORREG);
1610         else if (ha->type == GDT_ISA)
1611             *pIStatus =
1612                 gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1613         else if (ha->type == GDT_PCI)
1614             *pIStatus =
1615                 gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1616         else if (ha->type == GDT_PCINEW)
1617             *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1618         else if (ha->type == GDT_PCIMPR)
1619             *pIStatus =
1620                 gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1621
1622         if (*pIStatus)
1623             return i;                           /* board found */
1624     }
1625     return -1;
1626 }
1627
1628
1629 static int gdth_test_busy(int hanum)
1630 {
1631     register gdth_ha_str *ha;
1632     register int gdtsema0 = 0;
1633
1634     TRACE(("gdth_test_busy() hanum %d\n",hanum));
1635
1636     ha = HADATA(gdth_ctr_tab[hanum]);
1637     if (ha->type == GDT_EISA)
1638         gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1639     else if (ha->type == GDT_ISA)
1640         gdtsema0 = (int)gdth_readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1641     else if (ha->type == GDT_PCI)
1642         gdtsema0 = (int)gdth_readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1643     else if (ha->type == GDT_PCINEW)
1644         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1645     else if (ha->type == GDT_PCIMPR)
1646         gdtsema0 =
1647             (int)gdth_readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1648
1649     return (gdtsema0 & 1);
1650 }
1651
1652
1653 static int gdth_get_cmd_index(int hanum)
1654 {
1655     register gdth_ha_str *ha;
1656     int i;
1657
1658     TRACE(("gdth_get_cmd_index() hanum %d\n",hanum));
1659
1660     ha = HADATA(gdth_ctr_tab[hanum]);
1661     for (i=0; i<GDTH_MAXCMDS; ++i) {
1662         if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1663             ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1664             ha->cmd_tab[i].service = ha->pccb->Service;
1665             ha->pccb->CommandIndex = (ulong32)i+2;
1666             return (i+2);
1667         }
1668     }
1669     return 0;
1670 }
1671
1672
1673 static void gdth_set_sema0(int hanum)
1674 {
1675     register gdth_ha_str *ha;
1676
1677     TRACE(("gdth_set_sema0() hanum %d\n",hanum));
1678
1679     ha = HADATA(gdth_ctr_tab[hanum]);
1680     if (ha->type == GDT_EISA) {
1681         outb(1, ha->bmic + SEMA0REG);
1682     } else if (ha->type == GDT_ISA) {
1683         gdth_writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1684     } else if (ha->type == GDT_PCI) {
1685         gdth_writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1686     } else if (ha->type == GDT_PCINEW) {
1687         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1688     } else if (ha->type == GDT_PCIMPR) {
1689         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1690     }
1691 }
1692
1693
1694 static void gdth_copy_command(int hanum)
1695 {
1696     register gdth_ha_str *ha;
1697     register gdth_cmd_str *cmd_ptr;
1698     register gdt6m_dpram_str __iomem *dp6m_ptr;
1699     register gdt6c_dpram_str __iomem *dp6c_ptr;
1700     gdt6_dpram_str __iomem *dp6_ptr;
1701     gdt2_dpram_str __iomem *dp2_ptr;
1702     ushort cp_count,dp_offset,cmd_no;
1703
1704     TRACE(("gdth_copy_command() hanum %d\n",hanum));
1705
1706     ha = HADATA(gdth_ctr_tab[hanum]);
1707     cp_count = ha->cmd_len;
1708     dp_offset= ha->cmd_offs_dpmem;
1709     cmd_no   = ha->cmd_cnt;
1710     cmd_ptr  = ha->pccb;
1711
1712     ++ha->cmd_cnt;
1713     if (ha->type == GDT_EISA)
1714         return;                                 /* no DPMEM, no copy */
1715
1716     /* set cpcount dword aligned */
1717     if (cp_count & 3)
1718         cp_count += (4 - (cp_count & 3));
1719
1720     ha->cmd_offs_dpmem += cp_count;
1721
1722     /* set offset and service, copy command to DPMEM */
1723     if (ha->type == GDT_ISA) {
1724         dp2_ptr = ha->brd;
1725         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1726                     &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1727         gdth_writew((ushort)cmd_ptr->Service,
1728                     &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1729         memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1730     } else if (ha->type == GDT_PCI) {
1731         dp6_ptr = ha->brd;
1732         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1733                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1734         gdth_writew((ushort)cmd_ptr->Service,
1735                     &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1736         memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1737     } else if (ha->type == GDT_PCINEW) {
1738         dp6c_ptr = ha->brd;
1739         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1740                     &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1741         gdth_writew((ushort)cmd_ptr->Service,
1742                     &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1743         memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1744     } else if (ha->type == GDT_PCIMPR) {
1745         dp6m_ptr = ha->brd;
1746         gdth_writew(dp_offset + DPMEM_COMMAND_OFFSET,
1747                     &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1748         gdth_writew((ushort)cmd_ptr->Service,
1749                     &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1750         memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1751     }
1752 }
1753
1754
1755 static void gdth_release_event(int hanum)
1756 {
1757     register gdth_ha_str *ha;
1758
1759     TRACE(("gdth_release_event() hanum %d\n",hanum));
1760     ha = HADATA(gdth_ctr_tab[hanum]);
1761
1762 #ifdef GDTH_STATISTICS
1763     {
1764         ulong32 i,j;
1765         for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1766             if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1767                 ++i;
1768         }
1769         if (max_index < i) {
1770             max_index = i;
1771             TRACE3(("GDT: max_index = %d\n",(ushort)i));
1772         }
1773     }
1774 #endif
1775
1776     if (ha->pccb->OpCode == GDT_INIT)
1777         ha->pccb->Service |= 0x80;
1778
1779     if (ha->type == GDT_EISA) {
1780         if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
1781             outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1782         outb(ha->pccb->Service, ha->bmic + LDOORREG);
1783     } else if (ha->type == GDT_ISA) {
1784         gdth_writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1785     } else if (ha->type == GDT_PCI) {
1786         gdth_writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1787     } else if (ha->type == GDT_PCINEW) {
1788         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1789     } else if (ha->type == GDT_PCIMPR) {
1790         gdth_writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1791     }
1792 }
1793
1794
1795 static int gdth_wait(int hanum,int index,ulong32 time)
1796 {
1797     gdth_ha_str *ha;
1798     int answer_found = FALSE;
1799
1800     TRACE(("gdth_wait() hanum %d index %d time %d\n",hanum,index,time));
1801
1802     ha = HADATA(gdth_ctr_tab[hanum]);
1803     if (index == 0)
1804         return 1;                               /* no wait required */
1805
1806     gdth_from_wait = TRUE;
1807     do {
1808         gdth_interrupt((int)ha->irq,ha,NULL);
1809         if (wait_hanum==hanum && wait_index==index) {
1810             answer_found = TRUE;
1811             break;
1812         }
1813         gdth_delay(1);
1814     } while (--time);
1815     gdth_from_wait = FALSE;
1816
1817     while (gdth_test_busy(hanum))
1818         gdth_delay(0);
1819
1820     return (answer_found);
1821 }
1822
1823
1824 static int gdth_internal_cmd(int hanum,unchar service,ushort opcode,ulong32 p1,
1825                              ulong64 p2,ulong64 p3)
1826 {
1827     register gdth_ha_str *ha;
1828     register gdth_cmd_str *cmd_ptr;
1829     int retries,index;
1830
1831     TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1832
1833     ha = HADATA(gdth_ctr_tab[hanum]);
1834     cmd_ptr = ha->pccb;
1835     memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1836
1837     /* make command  */
1838     for (retries = INIT_RETRIES;;) {
1839         cmd_ptr->Service          = service;
1840         cmd_ptr->RequestBuffer    = INTERNAL_CMND;
1841         if (!(index=gdth_get_cmd_index(hanum))) {
1842             TRACE(("GDT: No free command index found\n"));
1843             return 0;
1844         }
1845         gdth_set_sema0(hanum);
1846         cmd_ptr->OpCode           = opcode;
1847         cmd_ptr->BoardNode        = LOCALBOARD;
1848         if (service == CACHESERVICE) {
1849             if (opcode == GDT_IOCTL) {
1850                 cmd_ptr->u.ioctl.subfunc = p1;
1851                 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1852                 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1853                 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1854             } else {
1855                 if (ha->cache_feat & GDT_64BIT) {
1856                     cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1857                     cmd_ptr->u.cache64.BlockNo  = p2;
1858                 } else {
1859                     cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1860                     cmd_ptr->u.cache.BlockNo  = (ulong32)p2;
1861                 }
1862             }
1863         } else if (service == SCSIRAWSERVICE) {
1864             if (ha->raw_feat & GDT_64BIT) {
1865                 cmd_ptr->u.raw64.direction  = p1;
1866                 cmd_ptr->u.raw64.bus        = (unchar)p2;
1867                 cmd_ptr->u.raw64.target     = (unchar)p3;
1868                 cmd_ptr->u.raw64.lun        = (unchar)(p3 >> 8);
1869             } else {
1870                 cmd_ptr->u.raw.direction  = p1;
1871                 cmd_ptr->u.raw.bus        = (unchar)p2;
1872                 cmd_ptr->u.raw.target     = (unchar)p3;
1873                 cmd_ptr->u.raw.lun        = (unchar)(p3 >> 8);
1874             }
1875         } else if (service == SCREENSERVICE) {
1876             if (opcode == GDT_REALTIME) {
1877                 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1878                 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1879                 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1880             }
1881         }
1882         ha->cmd_len          = sizeof(gdth_cmd_str);
1883         ha->cmd_offs_dpmem   = 0;
1884         ha->cmd_cnt          = 0;
1885         gdth_copy_command(hanum);
1886         gdth_release_event(hanum);
1887         gdth_delay(20);
1888         if (!gdth_wait(hanum,index,INIT_TIMEOUT)) {
1889             printk("GDT: Initialization error (timeout service %d)\n",service);
1890             return 0;
1891         }
1892         if (ha->status != S_BSY || --retries == 0)
1893             break;
1894         gdth_delay(1);
1895     }
1896
1897     return (ha->status != S_OK ? 0:1);
1898 }
1899
1900
1901 /* search for devices */
1902
1903 static int __init gdth_search_drives(int hanum)
1904 {
1905     register gdth_ha_str *ha;
1906     ushort cdev_cnt, i;
1907     int ok;
1908     ulong32 bus_no, drv_cnt, drv_no, j;
1909     gdth_getch_str *chn;
1910     gdth_drlist_str *drl;
1911     gdth_iochan_str *ioc;
1912     gdth_raw_iochan_str *iocr;
1913     gdth_arcdl_str *alst;
1914     gdth_alist_str *alst2;
1915     gdth_oem_str_ioctl *oemstr;
1916 #ifdef INT_COAL
1917     gdth_perf_modes *pmod;
1918 #endif
1919
1920 #ifdef GDTH_RTC
1921     unchar rtc[12];
1922     ulong flags;
1923 #endif
1924
1925     TRACE(("gdth_search_drives() hanum %d\n",hanum));
1926     ha = HADATA(gdth_ctr_tab[hanum]);
1927     ok = 0;
1928
1929     /* initialize controller services, at first: screen service */
1930     ha->screen_feat = 0;
1931     if (!force_dma32) {
1932         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_X_INIT_SCR,0,0,0);
1933         if (ok)
1934             ha->screen_feat = GDT_64BIT;
1935     }
1936     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1937         ok = gdth_internal_cmd(hanum,SCREENSERVICE,GDT_INIT,0,0,0);
1938     if (!ok) {
1939         printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1940                hanum, ha->status);
1941         return 0;
1942     }
1943     TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1944
1945 #ifdef GDTH_RTC
1946     /* read realtime clock info, send to controller */
1947     /* 1. wait for the falling edge of update flag */
1948     spin_lock_irqsave(&rtc_lock, flags);
1949     for (j = 0; j < 1000000; ++j)
1950         if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1951             break;
1952     for (j = 0; j < 1000000; ++j)
1953         if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1954             break;
1955     /* 2. read info */
1956     do {
1957         for (j = 0; j < 12; ++j)
1958             rtc[j] = CMOS_READ(j);
1959     } while (rtc[0] != CMOS_READ(0));
1960     spin_lock_irqrestore(&rtc_lock, flags);
1961     TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1962             *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1963     /* 3. send to controller firmware */
1964     gdth_internal_cmd(hanum,SCREENSERVICE,GDT_REALTIME, *(ulong32 *)&rtc[0],
1965                       *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1966 #endif
1967
1968     /* unfreeze all IOs */
1969     gdth_internal_cmd(hanum,CACHESERVICE,GDT_UNFREEZE_IO,0,0,0);
1970
1971     /* initialize cache service */
1972     ha->cache_feat = 0;
1973     if (!force_dma32) {
1974         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INIT_HOST,LINUX_OS,0,0);
1975         if (ok)
1976             ha->cache_feat = GDT_64BIT;
1977     }
1978     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1979         ok = gdth_internal_cmd(hanum,CACHESERVICE,GDT_INIT,LINUX_OS,0,0);
1980     if (!ok) {
1981         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1982                hanum, ha->status);
1983         return 0;
1984     }
1985     TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1986     cdev_cnt = (ushort)ha->info;
1987     ha->fw_vers = ha->service;
1988
1989 #ifdef INT_COAL
1990     if (ha->type == GDT_PCIMPR) {
1991         /* set perf. modes */
1992         pmod = (gdth_perf_modes *)ha->pscratch;
1993         pmod->version          = 1;
1994         pmod->st_mode          = 1;    /* enable one status buffer */
1995         *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1996         pmod->st_buff_indx1    = COALINDEX;
1997         pmod->st_buff_addr2    = 0;
1998         pmod->st_buff_u_addr2  = 0;
1999         pmod->st_buff_indx2    = 0;
2000         pmod->st_buff_size     = sizeof(gdth_coal_status) * MAXOFFSETS;
2001         pmod->cmd_mode         = 0;    // disable all cmd buffers
2002         pmod->cmd_buff_addr1   = 0;
2003         pmod->cmd_buff_u_addr1 = 0;
2004         pmod->cmd_buff_indx1   = 0;
2005         pmod->cmd_buff_addr2   = 0;
2006         pmod->cmd_buff_u_addr2 = 0;
2007         pmod->cmd_buff_indx2   = 0;
2008         pmod->cmd_buff_size    = 0;
2009         pmod->reserved1        = 0;
2010         pmod->reserved2        = 0;
2011         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,SET_PERF_MODES,
2012                               INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
2013             printk("GDT-HA %d: Interrupt coalescing activated\n", hanum);
2014         }
2015     }
2016 #endif
2017
2018     /* detect number of buses - try new IOCTL */
2019     iocr = (gdth_raw_iochan_str *)ha->pscratch;
2020     iocr->hdr.version        = 0xffffffff;
2021     iocr->hdr.list_entries   = MAXBUS;
2022     iocr->hdr.first_chan     = 0;
2023     iocr->hdr.last_chan      = MAXBUS-1;
2024     iocr->hdr.list_offset    = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
2025     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_RAW_DESC,
2026                           INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
2027         TRACE2(("IOCHAN_RAW_DESC supported!\n"));
2028         ha->bus_cnt = iocr->hdr.chan_count;
2029         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2030             if (iocr->list[bus_no].proc_id < MAXID)
2031                 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
2032             else
2033                 ha->bus_id[bus_no] = 0xff;
2034         }
2035     } else {
2036         /* old method */
2037         chn = (gdth_getch_str *)ha->pscratch;
2038         for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
2039             chn->channel_no = bus_no;
2040             if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2041                                    SCSI_CHAN_CNT | L_CTRL_PATTERN,
2042                                    IO_CHANNEL | INVALID_CHANNEL,
2043                                    sizeof(gdth_getch_str))) {
2044                 if (bus_no == 0) {
2045                     printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
2046                            hanum, ha->status);
2047                     return 0;
2048                 }
2049                 break;
2050             }
2051             if (chn->siop_id < MAXID)
2052                 ha->bus_id[bus_no] = chn->siop_id;
2053             else
2054                 ha->bus_id[bus_no] = 0xff;
2055         }
2056         ha->bus_cnt = (unchar)bus_no;
2057     }
2058     TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
2059
2060     /* read cache configuration */
2061     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_INFO,
2062                            INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
2063         printk("GDT-HA %d: Initialization error cache service (code %d)\n",
2064                hanum, ha->status);
2065         return 0;
2066     }
2067     ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
2068     TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
2069             ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
2070             ha->cpar.write_back,ha->cpar.block_size));
2071
2072     /* read board info and features */
2073     ha->more_proc = FALSE;
2074     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_INFO,
2075                           INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
2076         memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
2077                sizeof(gdth_binfo_str));
2078         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,BOARD_FEATURES,
2079                               INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
2080             TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
2081             ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
2082             ha->more_proc = TRUE;
2083         }
2084     } else {
2085         TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
2086         strcpy(ha->binfo.type_string, gdth_ctr_name(hanum));
2087     }
2088     TRACE2(("Controller name: %s\n",ha->binfo.type_string));
2089
2090     /* read more informations */
2091     if (ha->more_proc) {
2092         /* physical drives, channel addresses */
2093         ioc = (gdth_iochan_str *)ha->pscratch;
2094         ioc->hdr.version        = 0xffffffff;
2095         ioc->hdr.list_entries   = MAXBUS;
2096         ioc->hdr.first_chan     = 0;
2097         ioc->hdr.last_chan      = MAXBUS-1;
2098         ioc->hdr.list_offset    = GDTOFFSOF(gdth_iochan_str, list[0]);
2099         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,IOCHAN_DESC,
2100                               INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
2101             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2102                 ha->raw[bus_no].address = ioc->list[bus_no].address;
2103                 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
2104             }
2105         } else {
2106             for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2107                 ha->raw[bus_no].address = IO_CHANNEL;
2108                 ha->raw[bus_no].local_no = bus_no;
2109             }
2110         }
2111         for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
2112             chn = (gdth_getch_str *)ha->pscratch;
2113             chn->channel_no = ha->raw[bus_no].local_no;
2114             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2115                                   SCSI_CHAN_CNT | L_CTRL_PATTERN,
2116                                   ha->raw[bus_no].address | INVALID_CHANNEL,
2117                                   sizeof(gdth_getch_str))) {
2118                 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
2119                 TRACE2(("Channel %d: %d phys. drives\n",
2120                         bus_no,chn->drive_cnt));
2121             }
2122             if (ha->raw[bus_no].pdev_cnt > 0) {
2123                 drl = (gdth_drlist_str *)ha->pscratch;
2124                 drl->sc_no = ha->raw[bus_no].local_no;
2125                 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
2126                 if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2127                                       SCSI_DR_LIST | L_CTRL_PATTERN,
2128                                       ha->raw[bus_no].address | INVALID_CHANNEL,
2129                                       sizeof(gdth_drlist_str))) {
2130                     for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
2131                         ha->raw[bus_no].id_list[j] = drl->sc_list[j];
2132                 } else {
2133                     ha->raw[bus_no].pdev_cnt = 0;
2134                 }
2135             }
2136         }
2137
2138         /* logical drives */
2139         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_CNT,
2140                               INVALID_CHANNEL,sizeof(ulong32))) {
2141             drv_cnt = *(ulong32 *)ha->pscratch;
2142             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,CACHE_DRV_LIST,
2143                                   INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
2144                 for (j = 0; j < drv_cnt; ++j) {
2145                     drv_no = ((ulong32 *)ha->pscratch)[j];
2146                     if (drv_no < MAX_LDRIVES) {
2147                         ha->hdr[drv_no].is_logdrv = TRUE;
2148                         TRACE2(("Drive %d is log. drive\n",drv_no));
2149                     }
2150                 }
2151             }
2152             alst = (gdth_arcdl_str *)ha->pscratch;
2153             alst->entries_avail = MAX_LDRIVES;
2154             alst->first_entry = 0;
2155             alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
2156             if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2157                                   ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
2158                                   INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
2159                                   (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
2160                 for (j = 0; j < alst->entries_init; ++j) {
2161                     ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
2162                     ha->hdr[j].is_master = alst->list[j].is_master;
2163                     ha->hdr[j].is_parity = alst->list[j].is_parity;
2164                     ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
2165                     ha->hdr[j].master_no = alst->list[j].cd_handle;
2166                 }
2167             } else if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2168                                          ARRAY_DRV_LIST | LA_CTRL_PATTERN,
2169                                          0, 35 * sizeof(gdth_alist_str))) {
2170                 for (j = 0; j < 35; ++j) {
2171                     alst2 = &((gdth_alist_str *)ha->pscratch)[j];
2172                     ha->hdr[j].is_arraydrv = alst2->is_arrayd;
2173                     ha->hdr[j].is_master = alst2->is_master;
2174                     ha->hdr[j].is_parity = alst2->is_parity;
2175                     ha->hdr[j].is_hotfix = alst2->is_hotfix;
2176                     ha->hdr[j].master_no = alst2->cd_handle;
2177                 }
2178             }
2179         }
2180     }
2181
2182     /* initialize raw service */
2183     ha->raw_feat = 0;
2184     if (!force_dma32) {
2185         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_X_INIT_RAW,0,0,0);
2186         if (ok)
2187             ha->raw_feat = GDT_64BIT;
2188     }
2189     if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
2190         ok = gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_INIT,0,0,0);
2191     if (!ok) {
2192         printk("GDT-HA %d: Initialization error raw service (code %d)\n",
2193                hanum, ha->status);
2194         return 0;
2195     }
2196     TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
2197
2198     /* set/get features raw service (scatter/gather) */
2199     if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_SET_FEAT,SCATTER_GATHER,
2200                           0,0)) {
2201         TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
2202         if (gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_GET_FEAT,0,0,0)) {
2203             TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
2204                     ha->info));
2205             ha->raw_feat |= (ushort)ha->info;
2206         }
2207     }
2208
2209     /* set/get features cache service (equal to raw service) */
2210     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_SET_FEAT,0,
2211                           SCATTER_GATHER,0)) {
2212         TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
2213         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_GET_FEAT,0,0,0)) {
2214             TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
2215                     ha->info));
2216             ha->cache_feat |= (ushort)ha->info;
2217         }
2218     }
2219
2220     /* reserve drives for raw service */
2221     if (reserve_mode != 0) {
2222         gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE_ALL,
2223                           reserve_mode == 1 ? 1 : 3, 0, 0);
2224         TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
2225                 ha->status));
2226     }
2227     for (i = 0; i < MAX_RES_ARGS; i += 4) {
2228         if (reserve_list[i] == hanum && reserve_list[i+1] < ha->bus_cnt &&
2229             reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
2230             TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
2231                     reserve_list[i], reserve_list[i+1],
2232                     reserve_list[i+2], reserve_list[i+3]));
2233             if (!gdth_internal_cmd(hanum,SCSIRAWSERVICE,GDT_RESERVE,0,
2234                                    reserve_list[i+1], reserve_list[i+2] |
2235                                    (reserve_list[i+3] << 8))) {
2236                 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
2237                        hanum, ha->status);
2238              }
2239         }
2240     }
2241
2242     /* Determine OEM string using IOCTL */
2243     oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
2244     oemstr->params.ctl_version = 0x01;
2245     oemstr->params.buffer_size = sizeof(oemstr->text);
2246     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_IOCTL,
2247                           CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
2248                           sizeof(gdth_oem_str_ioctl))) {
2249         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
2250         printk("GDT-HA %d: Vendor: %s Name: %s\n",
2251                hanum,oemstr->text.oem_company_name,ha->binfo.type_string);
2252         /* Save the Host Drive inquiry data */
2253 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2254         strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
2255                 sizeof(ha->oem_name));
2256 #else
2257         strncpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,7);
2258         ha->oem_name[7] = '\0';
2259 #endif
2260     } else {
2261         /* Old method, based on PCI ID */
2262         TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
2263         printk("GDT-HA %d: Name: %s\n",
2264                hanum,ha->binfo.type_string);
2265 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2266         if (ha->oem_id == OEM_ID_INTEL)
2267             strlcpy(ha->oem_name,"Intel  ", sizeof(ha->oem_name));
2268         else
2269             strlcpy(ha->oem_name,"ICP    ", sizeof(ha->oem_name));
2270 #else
2271         if (ha->oem_id == OEM_ID_INTEL)
2272             strcpy(ha->oem_name,"Intel  ");
2273         else
2274             strcpy(ha->oem_name,"ICP    ");
2275 #endif
2276     }
2277
2278     /* scanning for host drives */
2279     for (i = 0; i < cdev_cnt; ++i)
2280         gdth_analyse_hdrive(hanum,i);
2281
2282     TRACE(("gdth_search_drives() OK\n"));
2283     return 1;
2284 }
2285
2286 static int gdth_analyse_hdrive(int hanum,ushort hdrive)
2287 {
2288     register gdth_ha_str *ha;
2289     ulong32 drv_cyls;
2290     int drv_hds, drv_secs;
2291
2292     TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n",hanum,hdrive));
2293     if (hdrive >= MAX_HDRIVES)
2294         return 0;
2295     ha = HADATA(gdth_ctr_tab[hanum]);
2296
2297     if (!gdth_internal_cmd(hanum,CACHESERVICE,GDT_INFO,hdrive,0,0))
2298         return 0;
2299     ha->hdr[hdrive].present = TRUE;
2300     ha->hdr[hdrive].size = ha->info;
2301
2302     /* evaluate mapping (sectors per head, heads per cylinder) */
2303     ha->hdr[hdrive].size &= ~SECS32;
2304     if (ha->info2 == 0) {
2305         gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2306     } else {
2307         drv_hds = ha->info2 & 0xff;
2308         drv_secs = (ha->info2 >> 8) & 0xff;
2309         drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2310     }
2311     ha->hdr[hdrive].heads = (unchar)drv_hds;
2312     ha->hdr[hdrive].secs  = (unchar)drv_secs;
2313     /* round size */
2314     ha->hdr[hdrive].size  = drv_cyls * drv_hds * drv_secs;
2315
2316     if (ha->cache_feat & GDT_64BIT) {
2317         if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_X_INFO,hdrive,0,0)
2318             && ha->info2 != 0) {
2319             ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2320         }
2321     }
2322     TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2323             hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2324
2325     /* get informations about device */
2326     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_DEVTYPE,hdrive,0,0)) {
2327         TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2328                 hdrive,ha->info));
2329         ha->hdr[hdrive].devtype = (ushort)ha->info;
2330     }
2331
2332     /* cluster info */
2333     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_CLUST_INFO,hdrive,0,0)) {
2334         TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2335                 hdrive,ha->info));
2336         if (!shared_access)
2337             ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2338     }
2339
2340     /* R/W attributes */
2341     if (gdth_internal_cmd(hanum,CACHESERVICE,GDT_RW_ATTRIBS,hdrive,0,0)) {
2342         TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2343                 hdrive,ha->info));
2344         ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2345     }
2346
2347     return 1;
2348 }
2349
2350
2351 /* command queueing/sending functions */
2352
2353 static void gdth_putq(int hanum,Scsi_Cmnd *scp,unchar priority)
2354 {
2355     register gdth_ha_str *ha;
2356     register Scsi_Cmnd *pscp;
2357     register Scsi_Cmnd *nscp;
2358     ulong flags;
2359     unchar b, t;
2360
2361     TRACE(("gdth_putq() priority %d\n",priority));
2362     ha = HADATA(gdth_ctr_tab[hanum]);
2363     spin_lock_irqsave(&ha->smp_lock, flags);
2364
2365     if (scp->done != gdth_scsi_done) {
2366         scp->SCp.this_residual = (int)priority;
2367         b = virt_ctr ? NUMDATA(scp->device->host)->busnum:scp->device->channel;
2368         t = scp->device->id;
2369         if (priority >= DEFAULT_PRI) {
2370             if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2371                 (b==ha->virt_bus && t<MAX_HDRIVES && ha->hdr[t].lock)) {
2372                 TRACE2(("gdth_putq(): locked IO ->update_timeout()\n"));
2373                 scp->SCp.buffers_residual = gdth_update_timeout(hanum, scp, 0);
2374             }
2375         }
2376     }
2377
2378     if (ha->req_first==NULL) {
2379         ha->req_first = scp;                    /* queue was empty */
2380         scp->SCp.ptr = NULL;
2381     } else {                                    /* queue not empty */
2382         pscp = ha->req_first;
2383         nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2384         /* priority: 0-highest,..,0xff-lowest */
2385         while (nscp && (unchar)nscp->SCp.this_residual <= priority) {
2386             pscp = nscp;
2387             nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2388         }
2389         pscp->SCp.ptr = (char *)scp;
2390         scp->SCp.ptr  = (char *)nscp;
2391     }
2392     spin_unlock_irqrestore(&ha->smp_lock, flags);
2393
2394 #ifdef GDTH_STATISTICS
2395     flags = 0;
2396     for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2397         ++flags;
2398     if (max_rq < flags) {
2399         max_rq = flags;
2400         TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2401     }
2402 #endif
2403 }
2404
2405 static void gdth_next(int hanum)
2406 {
2407     register gdth_ha_str *ha;
2408     register Scsi_Cmnd *pscp;
2409     register Scsi_Cmnd *nscp;
2410     unchar b, t, l, firsttime;
2411     unchar this_cmd, next_cmd;
2412     ulong flags = 0;
2413     int cmd_index;
2414
2415     TRACE(("gdth_next() hanum %d\n",hanum));
2416     ha = HADATA(gdth_ctr_tab[hanum]);
2417     if (!gdth_polling)
2418         spin_lock_irqsave(&ha->smp_lock, flags);
2419
2420     ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2421     this_cmd = firsttime = TRUE;
2422     next_cmd = gdth_polling ? FALSE:TRUE;
2423     cmd_index = 0;
2424
2425     for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2426         if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2427             pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2428         if (nscp->done != gdth_scsi_done) {
2429             b = virt_ctr ?
2430                 NUMDATA(nscp->device->host)->busnum : nscp->device->channel;
2431             t = nscp->device->id;
2432             l = nscp->device->lun;
2433             if (nscp->SCp.this_residual >= DEFAULT_PRI) {
2434                 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2435                     (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2436                     continue;
2437             }
2438         } else
2439             b = t = l = 0;
2440
2441         if (firsttime) {
2442             if (gdth_test_busy(hanum)) {        /* controller busy ? */
2443                 TRACE(("gdth_next() controller %d busy !\n",hanum));
2444                 if (!gdth_polling) {
2445                     spin_unlock_irqrestore(&ha->smp_lock, flags);
2446                     return;
2447                 }
2448                 while (gdth_test_busy(hanum))
2449                     gdth_delay(1);
2450             }
2451             firsttime = FALSE;
2452         }
2453
2454         if (nscp->done != gdth_scsi_done) {
2455         if (nscp->SCp.phase == -1) {
2456             nscp->SCp.phase = CACHESERVICE;           /* default: cache svc. */
2457             if (nscp->cmnd[0] == TEST_UNIT_READY) {
2458                 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2459                         b, t, l));
2460                 /* TEST_UNIT_READY -> set scan mode */
2461                 if ((ha->scan_mode & 0x0f) == 0) {
2462                     if (b == 0 && t == 0 && l == 0) {
2463                         ha->scan_mode |= 1;
2464                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2465                     }
2466                 } else if ((ha->scan_mode & 0x0f) == 1) {
2467                     if (b == 0 && ((t == 0 && l == 1) ||
2468                          (t == 1 && l == 0))) {
2469                         nscp->SCp.sent_command = GDT_SCAN_START;
2470                         nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2471                             | SCSIRAWSERVICE;
2472                         ha->scan_mode = 0x12;
2473                         TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2474                                 ha->scan_mode));
2475                     } else {
2476                         ha->scan_mode &= 0x10;
2477                         TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2478                     }
2479                 } else if (ha->scan_mode == 0x12) {
2480                     if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2481                         nscp->SCp.phase = SCSIRAWSERVICE;
2482                         nscp->SCp.sent_command = GDT_SCAN_END;
2483                         ha->scan_mode &= 0x10;
2484                         TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2485                                 ha->scan_mode));
2486                     }
2487                 }
2488             }
2489             if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2490                 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2491                 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2492                 /* always GDT_CLUST_INFO! */
2493                 nscp->SCp.sent_command = GDT_CLUST_INFO;
2494             }
2495         }
2496         }
2497
2498         if (nscp->SCp.sent_command != -1) {
2499             if ((nscp->SCp.phase & 0xff) == CACHESERVICE) {
2500                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2501                     this_cmd = FALSE;
2502                 next_cmd = FALSE;
2503             } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) {
2504                 if (!(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2505                     this_cmd = FALSE;
2506                 next_cmd = FALSE;
2507             } else {
2508                 memset((char*)nscp->sense_buffer,0,16);
2509                 nscp->sense_buffer[0] = 0x70;
2510                 nscp->sense_buffer[2] = NOT_READY;
2511                 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2512                 if (!nscp->SCp.have_data_in)
2513                     nscp->SCp.have_data_in++;
2514                 else
2515                     nscp->scsi_done(nscp);
2516             }
2517         } else if (nscp->done == gdth_scsi_done) {
2518             if (!(cmd_index=gdth_special_cmd(hanum,nscp)))
2519                 this_cmd = FALSE;
2520             next_cmd = FALSE;
2521         } else if (b != ha->virt_bus) {
2522             if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2523                 !(cmd_index=gdth_fill_raw_cmd(hanum,nscp,BUS_L2P(ha,b))))
2524                 this_cmd = FALSE;
2525             else
2526                 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2527         } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2528             TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2529                     nscp->cmnd[0], b, t, l));
2530             nscp->result = DID_BAD_TARGET << 16;
2531             if (!nscp->SCp.have_data_in)
2532                 nscp->SCp.have_data_in++;
2533             else
2534                 nscp->scsi_done(nscp);
2535         } else {
2536             switch (nscp->cmnd[0]) {
2537               case TEST_UNIT_READY:
2538               case INQUIRY:
2539               case REQUEST_SENSE:
2540               case READ_CAPACITY:
2541               case VERIFY:
2542               case START_STOP:
2543               case MODE_SENSE:
2544               case SERVICE_ACTION_IN:
2545                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2546                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2547                        nscp->cmnd[4],nscp->cmnd[5]));
2548                 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2549                     /* return UNIT_ATTENTION */
2550                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2551                              nscp->cmnd[0], t));
2552                     ha->hdr[t].media_changed = FALSE;
2553                     memset((char*)nscp->sense_buffer,0,16);
2554                     nscp->sense_buffer[0] = 0x70;
2555                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2556                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2557                     if (!nscp->SCp.have_data_in)
2558                         nscp->SCp.have_data_in++;
2559                     else
2560                         nscp->scsi_done(nscp);
2561                 } else if (gdth_internal_cache_cmd(hanum,nscp))
2562                     nscp->scsi_done(nscp);
2563                 break;
2564
2565               case ALLOW_MEDIUM_REMOVAL:
2566                 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2567                        nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2568                        nscp->cmnd[4],nscp->cmnd[5]));
2569                 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2570                     TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2571                     nscp->result = DID_OK << 16;
2572                     nscp->sense_buffer[0] = 0;
2573                     if (!nscp->SCp.have_data_in)
2574                         nscp->SCp.have_data_in++;
2575                     else
2576                         nscp->scsi_done(nscp);
2577                 } else {
2578                     nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2579                     TRACE(("Prevent/allow r. %d rem. drive %d\n",
2580                            nscp->cmnd[4],nscp->cmnd[3]));
2581                     if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2582                         this_cmd = FALSE;
2583                 }
2584                 break;
2585
2586               case RESERVE:
2587               case RELEASE:
2588                 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2589                         "RESERVE" : "RELEASE"));
2590                 if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2591                     this_cmd = FALSE;
2592                 break;
2593
2594               case READ_6:
2595               case WRITE_6:
2596               case READ_10:
2597               case WRITE_10:
2598               case READ_16:
2599               case WRITE_16:
2600                 if (ha->hdr[t].media_changed) {
2601                     /* return UNIT_ATTENTION */
2602                     TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2603                              nscp->cmnd[0], t));
2604                     ha->hdr[t].media_changed = FALSE;
2605                     memset((char*)nscp->sense_buffer,0,16);
2606                     nscp->sense_buffer[0] = 0x70;
2607                     nscp->sense_buffer[2] = UNIT_ATTENTION;
2608                     nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2609                     if (!nscp->SCp.have_data_in)
2610                         nscp->SCp.have_data_in++;
2611                     else
2612                         nscp->scsi_done(nscp);
2613                 } else if (!(cmd_index=gdth_fill_cache_cmd(hanum,nscp,t)))
2614                     this_cmd = FALSE;
2615                 break;
2616
2617               default:
2618                 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2619                         nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2620                         nscp->cmnd[4],nscp->cmnd[5]));
2621                 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2622                        hanum, nscp->cmnd[0]);
2623                 nscp->result = DID_ABORT << 16;
2624                 if (!nscp->SCp.have_data_in)
2625                     nscp->SCp.have_data_in++;
2626                 else
2627                     nscp->scsi_done(nscp);
2628                 break;
2629             }
2630         }
2631
2632         if (!this_cmd)
2633             break;
2634         if (nscp == ha->req_first)
2635             ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2636         else
2637             pscp->SCp.ptr = nscp->SCp.ptr;
2638         if (!next_cmd)
2639             break;
2640     }
2641
2642     if (ha->cmd_cnt > 0) {
2643         gdth_release_event(hanum);
2644     }
2645
2646     if (!gdth_polling)
2647         spin_unlock_irqrestore(&ha->smp_lock, flags);
2648
2649     if (gdth_polling && ha->cmd_cnt > 0) {
2650         if (!gdth_wait(hanum,cmd_index,POLL_TIMEOUT))
2651             printk("GDT-HA %d: Command %d timed out !\n",
2652                    hanum,cmd_index);
2653     }
2654 }
2655
2656 static void gdth_copy_internal_data(int hanum,Scsi_Cmnd *scp,
2657                                     char *buffer,ushort count)
2658 {
2659     ushort cpcount,i;
2660     ushort cpsum,cpnow;
2661     struct scatterlist *sl;
2662     gdth_ha_str *ha;
2663     char *address;
2664
2665     cpcount = count<=(ushort)scp->request_bufflen ? count:(ushort)scp->request_bufflen;
2666     ha = HADATA(gdth_ctr_tab[hanum]);
2667
2668     if (scp->use_sg) {
2669         sl = (struct scatterlist *)scp->request_buffer;
2670         for (i=0,cpsum=0; i<scp->use_sg; ++i,++sl) {
2671             unsigned long flags;
2672             cpnow = (ushort)sl->length;
2673             TRACE(("copy_internal() now %d sum %d count %d %d\n",
2674                           cpnow,cpsum,cpcount,(ushort)scp->bufflen));
2675             if (cpsum+cpnow > cpcount)
2676                 cpnow = cpcount - cpsum;
2677             cpsum += cpnow;
2678             if (!sl->page) {
2679                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2680                        hanum);
2681                 return;
2682             }
2683             local_irq_save(flags);
2684 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
2685             address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
2686             memcpy(address,buffer,cpnow);
2687             flush_dcache_page(sl->page);
2688             kunmap_atomic(address, KM_BIO_SRC_IRQ);
2689 #else
2690             address = kmap_atomic(sl->page, KM_BH_IRQ) + sl->offset;
2691             memcpy(address,buffer,cpnow);
2692             flush_dcache_page(sl->page);
2693             kunmap_atomic(address, KM_BH_IRQ);
2694 #endif
2695             local_irq_restore(flags);
2696             if (cpsum == cpcount)
2697                 break;
2698             buffer += cpnow;
2699         }
2700     } else {
2701         TRACE(("copy_internal() count %d\n",cpcount));
2702         memcpy((char*)scp->request_buffer,buffer,cpcount);
2703     }
2704 }
2705
2706 static int gdth_internal_cache_cmd(int hanum,Scsi_Cmnd *scp)
2707 {
2708     register gdth_ha_str *ha;
2709     unchar t;
2710     gdth_inq_data inq;
2711     gdth_rdcap_data rdc;
2712     gdth_sense_data sd;
2713     gdth_modep_data mpd;
2714
2715     ha = HADATA(gdth_ctr_tab[hanum]);
2716     t  = scp->device->id;
2717     TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2718            scp->cmnd[0],t));
2719
2720     scp->result = DID_OK << 16;
2721     scp->sense_buffer[0] = 0;
2722
2723     switch (scp->cmnd[0]) {
2724       case TEST_UNIT_READY:
2725       case VERIFY:
2726       case START_STOP:
2727         TRACE2(("Test/Verify/Start hdrive %d\n",t));
2728         break;
2729
2730       case INQUIRY:
2731         TRACE2(("Inquiry hdrive %d devtype %d\n",
2732                 t,ha->hdr[t].devtype));
2733         inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2734         /* you can here set all disks to removable, if you want to do
2735            a flush using the ALLOW_MEDIUM_REMOVAL command */
2736         inq.modif_rmb = 0x00;
2737         if ((ha->hdr[t].devtype & 1) ||
2738             (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2739             inq.modif_rmb = 0x80;
2740         inq.version   = 2;
2741         inq.resp_aenc = 2;
2742         inq.add_length= 32;
2743         strcpy(inq.vendor,ha->oem_name);
2744         sprintf(inq.product,"Host Drive  #%02d",t);
2745         strcpy(inq.revision,"   ");
2746         gdth_copy_internal_data(hanum,scp,(char*)&inq,sizeof(gdth_inq_data));
2747         break;
2748
2749       case REQUEST_SENSE:
2750         TRACE2(("Request sense hdrive %d\n",t));
2751         sd.errorcode = 0x70;
2752         sd.segno     = 0x00;
2753         sd.key       = NO_SENSE;
2754         sd.info      = 0;
2755         sd.add_length= 0;
2756         gdth_copy_internal_data(hanum,scp,(char*)&sd,sizeof(gdth_sense_data));
2757         break;
2758
2759       case MODE_SENSE:
2760         TRACE2(("Mode sense hdrive %d\n",t));
2761         memset((char*)&mpd,0,sizeof(gdth_modep_data));
2762         mpd.hd.data_length = sizeof(gdth_modep_data);
2763         mpd.hd.dev_par     = (ha->hdr[t].devtype&2) ? 0x80:0;
2764         mpd.hd.bd_length   = sizeof(mpd.bd);
2765         mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2766         mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2767         mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2768         gdth_copy_internal_data(hanum,scp,(char*)&mpd,sizeof(gdth_modep_data));
2769         break;
2770
2771       case READ_CAPACITY:
2772         TRACE2(("Read capacity hdrive %d\n",t));
2773         if (ha->hdr[t].size > (ulong64)0xffffffff)
2774             rdc.last_block_no = 0xffffffff;
2775         else
2776             rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2777         rdc.block_length  = cpu_to_be32(SECTOR_SIZE);
2778         gdth_copy_internal_data(hanum,scp,(char*)&rdc,sizeof(gdth_rdcap_data));
2779         break;
2780
2781       case SERVICE_ACTION_IN:
2782         if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2783             (ha->cache_feat & GDT_64BIT)) {
2784             gdth_rdcap16_data rdc16;
2785
2786             TRACE2(("Read capacity (16) hdrive %d\n",t));
2787             rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2788             rdc16.block_length  = cpu_to_be32(SECTOR_SIZE);
2789             gdth_copy_internal_data(hanum,scp,(char*)&rdc16,sizeof(gdth_rdcap16_data));
2790         } else {
2791             scp->result = DID_ABORT << 16;
2792         }
2793         break;
2794
2795       default:
2796         TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2797         break;
2798     }
2799
2800     if (!scp->SCp.have_data_in)
2801         scp->SCp.have_data_in++;
2802     else
2803         return 1;
2804
2805     return 0;
2806 }
2807
2808 static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
2809 {
2810     register gdth_ha_str *ha;
2811     register gdth_cmd_str *cmdp;
2812     struct scatterlist *sl;
2813     ulong32 cnt, blockcnt;
2814     ulong64 no, blockno;
2815     dma_addr_t phys_addr;
2816     int i, cmd_index, read_write, sgcnt, mode64;
2817     struct page *page;
2818     ulong offset;
2819
2820     ha = HADATA(gdth_ctr_tab[hanum]);
2821     cmdp = ha->pccb;
2822     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2823                  scp->cmnd[0],scp->cmd_len,hdrive));
2824
2825     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2826         return 0;
2827
2828     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2829     /* test for READ_16, WRITE_16 if !mode64 ? ---
2830        not required, should not occur due to error return on
2831        READ_CAPACITY_16 */
2832
2833     cmdp->Service = CACHESERVICE;
2834     cmdp->RequestBuffer = scp;
2835     /* search free command index */
2836     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
2837         TRACE(("GDT: No free command index found\n"));
2838         return 0;
2839     }
2840     /* if it's the first command, set command semaphore */
2841     if (ha->cmd_cnt == 0)
2842         gdth_set_sema0(hanum);
2843
2844     /* fill command */
2845     read_write = 0;
2846     if (scp->SCp.sent_command != -1)
2847         cmdp->OpCode = scp->SCp.sent_command;   /* special cache cmd. */
2848     else if (scp->cmnd[0] == RESERVE)
2849         cmdp->OpCode = GDT_RESERVE_DRV;
2850     else if (scp->cmnd[0] == RELEASE)
2851         cmdp->OpCode = GDT_RELEASE_DRV;
2852     else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2853         if (scp->cmnd[4] & 1)                   /* prevent ? */
2854             cmdp->OpCode = GDT_MOUNT;
2855         else if (scp->cmnd[3] & 1)              /* removable drive ? */
2856             cmdp->OpCode = GDT_UNMOUNT;
2857         else
2858             cmdp->OpCode = GDT_FLUSH;
2859     } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2860                scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2861     ) {
2862         read_write = 1;
2863         if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2864                                    (ha->cache_feat & GDT_WR_THROUGH)))
2865             cmdp->OpCode = GDT_WRITE_THR;
2866         else
2867             cmdp->OpCode = GDT_WRITE;
2868     } else {
2869         read_write = 2;
2870         cmdp->OpCode = GDT_READ;
2871     }
2872
2873     cmdp->BoardNode = LOCALBOARD;
2874     if (mode64) {
2875         cmdp->u.cache64.DeviceNo = hdrive;
2876         cmdp->u.cache64.BlockNo  = 1;
2877         cmdp->u.cache64.sg_canz  = 0;
2878     } else {
2879         cmdp->u.cache.DeviceNo = hdrive;
2880         cmdp->u.cache.BlockNo  = 1;
2881         cmdp->u.cache.sg_canz  = 0;
2882     }
2883
2884     if (read_write) {
2885         if (scp->cmd_len == 16) {
2886             memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2887             blockno = be64_to_cpu(no);
2888             memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2889             blockcnt = be32_to_cpu(cnt);
2890         } else if (scp->cmd_len == 10) {
2891             memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2892             blockno = be32_to_cpu(no);
2893             memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2894             blockcnt = be16_to_cpu(cnt);
2895         } else {
2896             memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2897             blockno = be32_to_cpu(no) & 0x001fffffUL;
2898             blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2899         }
2900         if (mode64) {
2901             cmdp->u.cache64.BlockNo = blockno;
2902             cmdp->u.cache64.BlockCnt = blockcnt;
2903         } else {
2904             cmdp->u.cache.BlockNo = (ulong32)blockno;
2905             cmdp->u.cache.BlockCnt = blockcnt;
2906         }
2907
2908         if (scp->use_sg) {
2909             sl = (struct scatterlist *)scp->request_buffer;
2910             sgcnt = scp->use_sg;
2911             scp->SCp.Status = GDTH_MAP_SG;
2912             scp->SCp.Message = (read_write == 1 ?
2913                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2914             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
2915             if (mode64) {
2916                 cmdp->u.cache64.DestAddr= (ulong64)-1;
2917                 cmdp->u.cache64.sg_canz = sgcnt;
2918                 for (i=0; i<sgcnt; ++i,++sl) {
2919                     cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2920 #ifdef GDTH_DMA_STATISTICS
2921                     if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2922                         ha->dma64_cnt++;
2923                     else
2924                         ha->dma32_cnt++;
2925 #endif
2926                     cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2927                 }
2928             } else {
2929                 cmdp->u.cache.DestAddr= 0xffffffff;
2930                 cmdp->u.cache.sg_canz = sgcnt;
2931                 for (i=0; i<sgcnt; ++i,++sl) {
2932                     cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2933 #ifdef GDTH_DMA_STATISTICS
2934                     ha->dma32_cnt++;
2935 #endif
2936                     cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2937                 }
2938             }
2939
2940 #ifdef GDTH_STATISTICS
2941             if (max_sg < (ulong32)sgcnt) {
2942                 max_sg = (ulong32)sgcnt;
2943                 TRACE3(("GDT: max_sg = %d\n",max_sg));
2944             }
2945 #endif
2946
2947         } else if (scp->request_bufflen) {
2948             scp->SCp.Status = GDTH_MAP_SINGLE;
2949             scp->SCp.Message = (read_write == 1 ?
2950                 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2951             page = virt_to_page(scp->request_buffer);
2952             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
2953             phys_addr = pci_map_page(ha->pdev,page,offset,
2954                                      scp->request_bufflen,scp->SCp.Message);
2955             scp->SCp.dma_handle = phys_addr;
2956             if (mode64) {
2957                 if (ha->cache_feat & SCATTER_GATHER) {
2958                     cmdp->u.cache64.DestAddr = (ulong64)-1;
2959                     cmdp->u.cache64.sg_canz = 1;
2960                     cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr;
2961                     cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen;
2962                     cmdp->u.cache64.sg_lst[1].sg_len = 0;
2963                 } else {
2964                     cmdp->u.cache64.DestAddr  = phys_addr;
2965                     cmdp->u.cache64.sg_canz= 0;
2966                 }
2967             } else {
2968                 if (ha->cache_feat & SCATTER_GATHER) {
2969                     cmdp->u.cache.DestAddr = 0xffffffff;
2970                     cmdp->u.cache.sg_canz = 1;
2971                     cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr;
2972                     cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen;
2973                     cmdp->u.cache.sg_lst[1].sg_len = 0;
2974                 } else {
2975                     cmdp->u.cache.DestAddr  = phys_addr;
2976                     cmdp->u.cache.sg_canz= 0;
2977                 }
2978             }
2979         }
2980     }
2981     /* evaluate command size, check space */
2982     if (mode64) {
2983         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2984                cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2985                cmdp->u.cache64.sg_lst[0].sg_ptr,
2986                cmdp->u.cache64.sg_lst[0].sg_len));
2987         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2988                cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2989         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2990             (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2991     } else {
2992         TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2993                cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2994                cmdp->u.cache.sg_lst[0].sg_ptr,
2995                cmdp->u.cache.sg_lst[0].sg_len));
2996         TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2997                cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2998         ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2999             (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
3000     }
3001     if (ha->cmd_len & 3)
3002         ha->cmd_len += (4 - (ha->cmd_len & 3));
3003
3004     if (ha->cmd_cnt > 0) {
3005         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3006             ha->ic_all_size) {
3007             TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
3008             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3009             return 0;
3010         }
3011     }
3012
3013     /* copy command */
3014     gdth_copy_command(hanum);
3015     return cmd_index;
3016 }
3017
3018 static int gdth_fill_raw_cmd(int hanum,Scsi_Cmnd *scp,unchar b)
3019 {
3020     register gdth_ha_str *ha;
3021     register gdth_cmd_str *cmdp;
3022     struct scatterlist *sl;
3023     ushort i;
3024     dma_addr_t phys_addr, sense_paddr;
3025     int cmd_index, sgcnt, mode64;
3026     unchar t,l;
3027     struct page *page;
3028     ulong offset;
3029
3030     ha = HADATA(gdth_ctr_tab[hanum]);
3031     t = scp->device->id;
3032     l = scp->device->lun;
3033     cmdp = ha->pccb;
3034     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
3035            scp->cmnd[0],b,t,l));
3036
3037     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3038         return 0;
3039
3040     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
3041
3042     cmdp->Service = SCSIRAWSERVICE;
3043     cmdp->RequestBuffer = scp;
3044     /* search free command index */
3045     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3046         TRACE(("GDT: No free command index found\n"));
3047         return 0;
3048     }
3049     /* if it's the first command, set command semaphore */
3050     if (ha->cmd_cnt == 0)
3051         gdth_set_sema0(hanum);
3052
3053     /* fill command */
3054     if (scp->SCp.sent_command != -1) {
3055         cmdp->OpCode           = scp->SCp.sent_command; /* special raw cmd. */
3056         cmdp->BoardNode        = LOCALBOARD;
3057         if (mode64) {
3058             cmdp->u.raw64.direction = (scp->SCp.phase >> 8);
3059             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3060                     cmdp->OpCode, cmdp->u.raw64.direction));
3061             /* evaluate command size */
3062             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
3063         } else {
3064             cmdp->u.raw.direction  = (scp->SCp.phase >> 8);
3065             TRACE2(("special raw cmd 0x%x param 0x%x\n",
3066                     cmdp->OpCode, cmdp->u.raw.direction));
3067             /* evaluate command size */
3068             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
3069         }
3070
3071     } else {
3072         page = virt_to_page(scp->sense_buffer);
3073         offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
3074         sense_paddr = pci_map_page(ha->pdev,page,offset,
3075                                    16,PCI_DMA_FROMDEVICE);
3076         *(ulong32 *)&scp->SCp.buffer = (ulong32)sense_paddr;
3077         /* high part, if 64bit */
3078         *(ulong32 *)&scp->host_scribble = (ulong32)((ulong64)sense_paddr >> 32);
3079         cmdp->OpCode           = GDT_WRITE;             /* always */
3080         cmdp->BoardNode        = LOCALBOARD;
3081         if (mode64) {
3082             cmdp->u.raw64.reserved   = 0;
3083             cmdp->u.raw64.mdisc_time = 0;
3084             cmdp->u.raw64.mcon_time  = 0;
3085             cmdp->u.raw64.clen       = scp->cmd_len;
3086             cmdp->u.raw64.target     = t;
3087             cmdp->u.raw64.lun        = l;
3088             cmdp->u.raw64.bus        = b;
3089             cmdp->u.raw64.priority   = 0;
3090             cmdp->u.raw64.sdlen      = scp->request_bufflen;
3091             cmdp->u.raw64.sense_len  = 16;
3092             cmdp->u.raw64.sense_data = sense_paddr;
3093             cmdp->u.raw64.direction  =
3094                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3095             memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
3096         } else {
3097             cmdp->u.raw.reserved   = 0;
3098             cmdp->u.raw.mdisc_time = 0;
3099             cmdp->u.raw.mcon_time  = 0;
3100             cmdp->u.raw.clen       = scp->cmd_len;
3101             cmdp->u.raw.target     = t;
3102             cmdp->u.raw.lun        = l;
3103             cmdp->u.raw.bus        = b;
3104             cmdp->u.raw.priority   = 0;
3105             cmdp->u.raw.link_p     = 0;
3106             cmdp->u.raw.sdlen      = scp->request_bufflen;
3107             cmdp->u.raw.sense_len  = 16;
3108             cmdp->u.raw.sense_data = sense_paddr;
3109             cmdp->u.raw.direction  =
3110                 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
3111             memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
3112         }
3113
3114         if (scp->use_sg) {
3115             sl = (struct scatterlist *)scp->request_buffer;
3116             sgcnt = scp->use_sg;
3117             scp->SCp.Status = GDTH_MAP_SG;
3118             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3119             sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message);
3120             if (mode64) {
3121                 cmdp->u.raw64.sdata = (ulong64)-1;
3122                 cmdp->u.raw64.sg_ranz = sgcnt;
3123                 for (i=0; i<sgcnt; ++i,++sl) {
3124                     cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
3125 #ifdef GDTH_DMA_STATISTICS
3126                     if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
3127                         ha->dma64_cnt++;
3128                     else
3129                         ha->dma32_cnt++;
3130 #endif
3131                     cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
3132                 }
3133             } else {
3134                 cmdp->u.raw.sdata = 0xffffffff;
3135                 cmdp->u.raw.sg_ranz = sgcnt;
3136                 for (i=0; i<sgcnt; ++i,++sl) {
3137                     cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
3138 #ifdef GDTH_DMA_STATISTICS
3139                     ha->dma32_cnt++;
3140 #endif
3141                     cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
3142                 }
3143             }
3144
3145 #ifdef GDTH_STATISTICS
3146             if (max_sg < sgcnt) {
3147                 max_sg = sgcnt;
3148                 TRACE3(("GDT: max_sg = %d\n",sgcnt));
3149             }
3150 #endif
3151
3152         } else if (scp->request_bufflen) {
3153             scp->SCp.Status = GDTH_MAP_SINGLE;
3154             scp->SCp.Message = PCI_DMA_BIDIRECTIONAL;
3155             page = virt_to_page(scp->request_buffer);
3156             offset = (ulong)scp->request_buffer & ~PAGE_MASK;
3157             phys_addr = pci_map_page(ha->pdev,page,offset,
3158                                      scp->request_bufflen,scp->SCp.Message);
3159             scp->SCp.dma_handle = phys_addr;
3160
3161             if (mode64) {
3162                 if (ha->raw_feat & SCATTER_GATHER) {
3163                     cmdp->u.raw64.sdata  = (ulong64)-1;
3164                     cmdp->u.raw64.sg_ranz= 1;
3165                     cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr;
3166                     cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen;
3167                     cmdp->u.raw64.sg_lst[1].sg_len = 0;
3168                 } else {
3169                     cmdp->u.raw64.sdata  = phys_addr;
3170                     cmdp->u.raw64.sg_ranz= 0;
3171                 }
3172             } else {
3173                 if (ha->raw_feat & SCATTER_GATHER) {
3174                     cmdp->u.raw.sdata  = 0xffffffff;
3175                     cmdp->u.raw.sg_ranz= 1;
3176                     cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr;
3177                     cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen;
3178                     cmdp->u.raw.sg_lst[1].sg_len = 0;
3179                 } else {
3180                     cmdp->u.raw.sdata  = phys_addr;
3181                     cmdp->u.raw.sg_ranz= 0;
3182                 }
3183             }
3184         }
3185         if (mode64) {
3186             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3187                    cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
3188                    cmdp->u.raw64.sg_lst[0].sg_ptr,
3189                    cmdp->u.raw64.sg_lst[0].sg_len));
3190             /* evaluate command size */
3191             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
3192                 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
3193         } else {
3194             TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
3195                    cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
3196                    cmdp->u.raw.sg_lst[0].sg_ptr,
3197                    cmdp->u.raw.sg_lst[0].sg_len));
3198             /* evaluate command size */
3199             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
3200                 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
3201         }
3202     }
3203     /* check space */
3204     if (ha->cmd_len & 3)
3205         ha->cmd_len += (4 - (ha->cmd_len & 3));
3206
3207     if (ha->cmd_cnt > 0) {
3208         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3209             ha->ic_all_size) {
3210             TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
3211             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3212             return 0;
3213         }
3214     }
3215
3216     /* copy command */
3217     gdth_copy_command(hanum);
3218     return cmd_index;
3219 }
3220
3221 static int gdth_special_cmd(int hanum,Scsi_Cmnd *scp)
3222 {
3223     register gdth_ha_str *ha;
3224     register gdth_cmd_str *cmdp;
3225     int cmd_index;
3226
3227     ha  = HADATA(gdth_ctr_tab[hanum]);
3228     cmdp= ha->pccb;
3229     TRACE2(("gdth_special_cmd(): "));
3230
3231     if (ha->type==GDT_EISA && ha->cmd_cnt>0)
3232         return 0;
3233
3234     memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str));
3235     cmdp->RequestBuffer = scp;
3236
3237     /* search free command index */
3238     if (!(cmd_index=gdth_get_cmd_index(hanum))) {
3239         TRACE(("GDT: No free command index found\n"));
3240         return 0;
3241     }
3242
3243     /* if it's the first command, set command semaphore */
3244     if (ha->cmd_cnt == 0)
3245        gdth_set_sema0(hanum);
3246
3247     /* evaluate command size, check space */
3248     if (cmdp->OpCode == GDT_IOCTL) {
3249         TRACE2(("IOCTL\n"));
3250         ha->cmd_len =
3251             GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
3252     } else if (cmdp->Service == CACHESERVICE) {
3253         TRACE2(("cache command %d\n",cmdp->OpCode));
3254         if (ha->cache_feat & GDT_64BIT)
3255             ha->cmd_len =
3256                 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
3257         else
3258             ha->cmd_len =
3259                 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
3260     } else if (cmdp->Service == SCSIRAWSERVICE) {
3261         TRACE2(("raw command %d\n",cmdp->OpCode));
3262         if (ha->raw_feat & GDT_64BIT)
3263             ha->cmd_len =
3264                 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
3265         else
3266             ha->cmd_len =
3267                 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
3268     }
3269
3270     if (ha->cmd_len & 3)
3271         ha->cmd_len += (4 - (ha->cmd_len & 3));
3272
3273     if (ha->cmd_cnt > 0) {
3274         if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
3275             ha->ic_all_size) {
3276             TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
3277             ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
3278             return 0;
3279         }
3280     }
3281
3282     /* copy command */
3283     gdth_copy_command(hanum);
3284     return cmd_index;
3285 }
3286
3287
3288 /* Controller event handling functions */
3289 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
3290                                       ushort idx, gdth_evt_data *evt)
3291 {
3292     gdth_evt_str *e;
3293     struct timeval tv;
3294
3295     /* no GDTH_LOCK_HA() ! */
3296     TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
3297     if (source == 0)                        /* no source -> no event */
3298         return NULL;
3299
3300     if (ebuffer[elastidx].event_source == source &&
3301         ebuffer[elastidx].event_idx == idx &&
3302         ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
3303             !memcmp((char *)&ebuffer[elastidx].event_data.eu,
3304             (char *)&evt->eu, evt->size)) ||
3305         (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
3306             !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
3307             (char *)&evt->event_string)))) {
3308         e = &ebuffer[elastidx];
3309         do_gettimeofday(&tv);
3310         e->last_stamp = tv.tv_sec;
3311         ++e->same_count;
3312     } else {
3313         if (ebuffer[elastidx].event_source != 0) {  /* entry not free ? */
3314             ++elastidx;
3315             if (elastidx == MAX_EVENTS)
3316                 elastidx = 0;
3317             if (elastidx == eoldidx) {              /* reached mark ? */
3318                 ++eoldidx;
3319                 if (eoldidx == MAX_EVENTS)
3320                     eoldidx = 0;
3321             }
3322         }
3323         e = &ebuffer[elastidx];
3324         e->event_source = source;
3325         e->event_idx = idx;
3326         do_gettimeofday(&tv);
3327         e->first_stamp = e->last_stamp = tv.tv_sec;
3328         e->same_count = 1;
3329         e->event_data = *evt;
3330         e->application = 0;
3331     }
3332     return e;
3333 }
3334
3335 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
3336 {
3337     gdth_evt_str *e;
3338     int eindex;
3339     ulong flags;
3340
3341     TRACE2(("gdth_read_event() handle %d\n", handle));
3342     spin_lock_irqsave(&ha->smp_lock, flags);
3343     if (handle == -1)
3344         eindex = eoldidx;
3345     else
3346         eindex = handle;
3347     estr->event_source = 0;
3348
3349     if (eindex >= MAX_EVENTS) {
3350         spin_unlock_irqrestore(&ha->smp_lock, flags);
3351         return eindex;
3352     }
3353     e = &ebuffer[eindex];
3354     if (e->event_source != 0) {
3355         if (eindex != elastidx) {
3356             if (++eindex == MAX_EVENTS)
3357                 eindex = 0;
3358         } else {
3359             eindex = -1;
3360         }
3361         memcpy(estr, e, sizeof(gdth_evt_str));
3362     }
3363     spin_unlock_irqrestore(&ha->smp_lock, flags);
3364     return eindex;
3365 }
3366
3367 static void gdth_readapp_event(gdth_ha_str *ha,
3368                                unchar application, gdth_evt_str *estr)
3369 {
3370     gdth_evt_str *e;
3371     int eindex;
3372     ulong flags;
3373     unchar found = FALSE;
3374
3375     TRACE2(("gdth_readapp_event() app. %d\n", application));
3376     spin_lock_irqsave(&ha->smp_lock, flags);
3377     eindex = eoldidx;
3378     for (;;) {
3379         e = &ebuffer[eindex];
3380         if (e->event_source == 0)
3381             break;
3382         if ((e->application & application) == 0) {
3383             e->application |= application;
3384             found = TRUE;
3385             break;
3386         }
3387         if (eindex == elastidx)
3388             break;
3389         if (++eindex == MAX_EVENTS)
3390             eindex = 0;
3391     }
3392     if (found)
3393         memcpy(estr, e, sizeof(gdth_evt_str));
3394     else
3395         estr->event_source = 0;
3396     spin_unlock_irqrestore(&ha->smp_lock, flags);
3397 }
3398
3399 static void gdth_clear_events(void)
3400 {
3401     TRACE(("gdth_clear_events()"));
3402
3403     eoldidx = elastidx = 0;
3404     ebuffer[0].event_source = 0;
3405 }
3406
3407
3408 /* SCSI interface functions */
3409
3410 static irqreturn_t gdth_interrupt(int irq,void *dev_id,struct pt_regs *regs)
3411 {
3412     gdth_ha_str *ha2 = (gdth_ha_str *)dev_id;
3413     register gdth_ha_str *ha;
3414     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
3415     gdt6_dpram_str __iomem *dp6_ptr;
3416     gdt2_dpram_str __iomem *dp2_ptr;
3417     Scsi_Cmnd *scp;
3418     int hanum, rval, i;
3419     unchar IStatus;
3420     ushort Service;
3421     ulong flags = 0;
3422 #ifdef INT_COAL
3423     int coalesced = FALSE;
3424     int next = FALSE;
3425     gdth_coal_status *pcs = NULL;
3426     int act_int_coal = 0;
3427 #endif
3428
3429     TRACE(("gdth_interrupt() IRQ %d\n",irq));
3430
3431     /* if polling and not from gdth_wait() -> return */
3432     if (gdth_polling) {
3433         if (!gdth_from_wait) {
3434             return IRQ_HANDLED;
3435         }
3436     }
3437
3438     if (!gdth_polling)
3439         spin_lock_irqsave(&ha2->smp_lock, flags);
3440     wait_index = 0;
3441
3442     /* search controller */
3443     if ((hanum = gdth_get_status(&IStatus,irq)) == -1) {
3444         /* spurious interrupt */
3445         if (!gdth_polling)
3446             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3447             return IRQ_HANDLED;
3448     }
3449     ha = HADATA(gdth_ctr_tab[hanum]);
3450
3451 #ifdef GDTH_STATISTICS
3452     ++act_ints;
3453 #endif
3454
3455 #ifdef INT_COAL
3456     /* See if the fw is returning coalesced status */
3457     if (IStatus == COALINDEX) {
3458         /* Coalesced status.  Setup the initial status
3459            buffer pointer and flags */
3460         pcs = ha->coal_stat;
3461         coalesced = TRUE;
3462         next = TRUE;
3463     }
3464
3465     do {
3466         if (coalesced) {
3467             /* For coalesced requests all status
3468                information is found in the status buffer */
3469             IStatus = (unchar)(pcs->status & 0xff);
3470         }
3471 #endif
3472
3473         if (ha->type == GDT_EISA) {
3474             if (IStatus & 0x80) {                       /* error flag */
3475                 IStatus &= ~0x80;
3476                 ha->status = inw(ha->bmic + MAILBOXREG+8);
3477                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3478             } else                                      /* no error */
3479                 ha->status = S_OK;
3480             ha->info = inl(ha->bmic + MAILBOXREG+12);
3481             ha->service = inw(ha->bmic + MAILBOXREG+10);
3482             ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3483
3484             outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
3485             outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
3486         } else if (ha->type == GDT_ISA) {
3487             dp2_ptr = ha->brd;
3488             if (IStatus & 0x80) {                       /* error flag */
3489                 IStatus &= ~0x80;
3490                 ha->status = gdth_readw(&dp2_ptr->u.ic.Status);
3491                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3492             } else                                      /* no error */
3493                 ha->status = S_OK;
3494             ha->info = gdth_readl(&dp2_ptr->u.ic.Info[0]);
3495             ha->service = gdth_readw(&dp2_ptr->u.ic.Service);
3496             ha->info2 = gdth_readl(&dp2_ptr->u.ic.Info[1]);
3497
3498             gdth_writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3499             gdth_writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3500             gdth_writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
3501         } else if (ha->type == GDT_PCI) {
3502             dp6_ptr = ha->brd;
3503             if (IStatus & 0x80) {                       /* error flag */
3504                 IStatus &= ~0x80;
3505                 ha->status = gdth_readw(&dp6_ptr->u.ic.Status);
3506                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3507             } else                                      /* no error */
3508                 ha->status = S_OK;
3509             ha->info = gdth_readl(&dp6_ptr->u.ic.Info[0]);
3510             ha->service = gdth_readw(&dp6_ptr->u.ic.Service);
3511             ha->info2 = gdth_readl(&dp6_ptr->u.ic.Info[1]);
3512
3513             gdth_writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3514             gdth_writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3515             gdth_writeb(0, &dp6_ptr->io.Sema1);     /* reset status semaphore */
3516         } else if (ha->type == GDT_PCINEW) {
3517             if (IStatus & 0x80) {                       /* error flag */
3518                 IStatus &= ~0x80;
3519                 ha->status = inw(PTR2USHORT(&ha->plx->status));
3520                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3521             } else
3522                 ha->status = S_OK;
3523             ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3524             ha->service = inw(PTR2USHORT(&ha->plx->service));
3525             ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3526
3527             outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3528             outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3529         } else if (ha->type == GDT_PCIMPR) {
3530             dp6m_ptr = ha->brd;
3531             if (IStatus & 0x80) {                       /* error flag */
3532                 IStatus &= ~0x80;
3533 #ifdef INT_COAL
3534                 if (coalesced)
3535                     ha->status = pcs->ext_status && 0xffff;
3536                 else
3537 #endif
3538                     ha->status = gdth_readw(&dp6m_ptr->i960r.status);
3539                 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3540             } else                                      /* no error */
3541                 ha->status = S_OK;
3542 #ifdef INT_COAL
3543             /* get information */
3544             if (coalesced) {
3545                 ha->info = pcs->info0;
3546                 ha->info2 = pcs->info1;
3547                 ha->service = (pcs->ext_status >> 16) && 0xffff;
3548             } else
3549 #endif
3550             {
3551                 ha->info = gdth_readl(&dp6m_ptr->i960r.info[0]);
3552                 ha->service = gdth_readw(&dp6m_ptr->i960r.service);
3553                 ha->info2 = gdth_readl(&dp6m_ptr->i960r.info[1]);
3554             }
3555             /* event string */
3556             if (IStatus == ASYNCINDEX) {
3557                 if (ha->service != SCREENSERVICE &&
3558                     (ha->fw_vers & 0xff) >= 0x1a) {
3559                     ha->dvr.severity = gdth_readb
3560                         (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3561                     for (i = 0; i < 256; ++i) {
3562                         ha->dvr.event_string[i] = gdth_readb
3563                             (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3564                         if (ha->dvr.event_string[i] == 0)
3565                             break;
3566                     }
3567                 }
3568             }
3569 #ifdef INT_COAL
3570             /* Make sure that non coalesced interrupts get cleared
3571                before being handled by gdth_async_event/gdth_sync_event */
3572             if (!coalesced)
3573 #endif
3574             {
3575                 gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3576                 gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3577             }
3578         } else {
3579             TRACE2(("gdth_interrupt() unknown controller type\n"));
3580             if (!gdth_polling)
3581                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3582             return IRQ_HANDLED;
3583         }
3584
3585         TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3586                IStatus,ha->status,ha->info));
3587
3588         if (gdth_from_wait) {
3589             wait_hanum = hanum;
3590             wait_index = (int)IStatus;
3591         }
3592
3593         if (IStatus == ASYNCINDEX) {
3594             TRACE2(("gdth_interrupt() async. event\n"));
3595             gdth_async_event(hanum);
3596             if (!gdth_polling)
3597                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3598             gdth_next(hanum);
3599             return IRQ_HANDLED;
3600         }
3601
3602         if (IStatus == SPEZINDEX) {
3603             TRACE2(("Service unknown or not initialized !\n"));
3604             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3605             ha->dvr.eu.driver.ionode = hanum;
3606             gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3607             if (!gdth_polling)
3608                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3609             return IRQ_HANDLED;
3610         }
3611         scp     = ha->cmd_tab[IStatus-2].cmnd;
3612         Service = ha->cmd_tab[IStatus-2].service;
3613         ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3614         if (scp == UNUSED_CMND) {
3615             TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3616             ha->dvr.size = sizeof(ha->dvr.eu.driver);
3617             ha->dvr.eu.driver.ionode = hanum;
3618             ha->dvr.eu.driver.index = IStatus;
3619             gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3620             if (!gdth_polling)
3621                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3622             return IRQ_HANDLED;
3623         }
3624         if (scp == INTERNAL_CMND) {
3625             TRACE(("gdth_interrupt() answer to internal command\n"));
3626             if (!gdth_polling)
3627                 spin_unlock_irqrestore(&ha2->smp_lock, flags);
3628             return IRQ_HANDLED;
3629         }
3630
3631         TRACE(("gdth_interrupt() sync. status\n"));
3632         rval = gdth_sync_event(hanum,Service,IStatus,scp);
3633         if (!gdth_polling)
3634             spin_unlock_irqrestore(&ha2->smp_lock, flags);
3635         if (rval == 2) {
3636             gdth_putq(hanum,scp,scp->SCp.this_residual);
3637         } else if (rval == 1) {
3638             scp->scsi_done(scp);
3639         }
3640
3641 #ifdef INT_COAL
3642         if (coalesced) {
3643             /* go to the next status in the status buffer */
3644             ++pcs;
3645 #ifdef GDTH_STATISTICS
3646             ++act_int_coal;
3647             if (act_int_coal > max_int_coal) {
3648                 max_int_coal = act_int_coal;
3649                 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3650             }
3651 #endif
3652             /* see if there is another status */
3653             if (pcs->status == 0)
3654                 /* Stop the coalesce loop */
3655                 next = FALSE;
3656         }
3657     } while (next);
3658
3659     /* coalescing only for new GDT_PCIMPR controllers available */
3660     if (ha->type == GDT_PCIMPR && coalesced) {
3661         gdth_writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3662         gdth_writeb(0, &dp6m_ptr->i960r.sema1_reg);
3663     }
3664 #endif
3665
3666     gdth_next(hanum);
3667     return IRQ_HANDLED;
3668 }
3669
3670 static int gdth_sync_event(int hanum,int service,unchar index,Scsi_Cmnd *scp)
3671 {
3672     register gdth_ha_str *ha;
3673     gdth_msg_str *msg;
3674     gdth_cmd_str *cmdp;
3675     unchar b, t;
3676
3677     ha   = HADATA(gdth_ctr_tab[hanum]);
3678     cmdp = ha->pccb;
3679     TRACE(("gdth_sync_event() serv %d status %d\n",
3680            service,ha->status));
3681
3682     if (service == SCREENSERVICE) {
3683         msg  = ha->pmsg;
3684         TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3685                msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3686         if (msg->msg_len > MSGLEN+1)
3687             msg->msg_len = MSGLEN+1;
3688         if (msg->msg_len)
3689             if (!(msg->msg_answer && msg->msg_ext)) {
3690                 msg->msg_text[msg->msg_len] = '\0';
3691                 printk("%s",msg->msg_text);
3692             }
3693
3694         if (msg->msg_ext && !msg->msg_answer) {
3695             while (gdth_test_busy(hanum))
3696                 gdth_delay(0);
3697             cmdp->Service       = SCREENSERVICE;
3698             cmdp->RequestBuffer = SCREEN_CMND;
3699             gdth_get_cmd_index(hanum);
3700             gdth_set_sema0(hanum);
3701             cmdp->OpCode        = GDT_READ;
3702             cmdp->BoardNode     = LOCALBOARD;
3703             cmdp->u.screen.reserved  = 0;
3704             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3705             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3706             ha->cmd_offs_dpmem = 0;
3707             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3708                 + sizeof(ulong64);
3709             ha->cmd_cnt = 0;
3710             gdth_copy_command(hanum);
3711             gdth_release_event(hanum);
3712             return 0;
3713         }
3714
3715         if (msg->msg_answer && msg->msg_alen) {
3716             /* default answers (getchar() not possible) */
3717             if (msg->msg_alen == 1) {
3718                 msg->msg_alen = 0;
3719                 msg->msg_len = 1;
3720                 msg->msg_text[0] = 0;
3721             } else {
3722                 msg->msg_alen -= 2;
3723                 msg->msg_len = 2;
3724                 msg->msg_text[0] = 1;
3725                 msg->msg_text[1] = 0;
3726             }
3727             msg->msg_ext    = 0;
3728             msg->msg_answer = 0;
3729             while (gdth_test_busy(hanum))
3730                 gdth_delay(0);
3731             cmdp->Service       = SCREENSERVICE;
3732             cmdp->RequestBuffer = SCREEN_CMND;
3733             gdth_get_cmd_index(hanum);
3734             gdth_set_sema0(hanum);
3735             cmdp->OpCode        = GDT_WRITE;
3736             cmdp->BoardNode     = LOCALBOARD;
3737             cmdp->u.screen.reserved  = 0;
3738             cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3739             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
3740             ha->cmd_offs_dpmem = 0;
3741             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3742                 + sizeof(ulong64);
3743             ha->cmd_cnt = 0;
3744             gdth_copy_command(hanum);
3745             gdth_release_event(hanum);
3746             return 0;
3747         }
3748         printk("\n");
3749
3750     } else {
3751         b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
3752         t = scp->device->id;
3753         if (scp->SCp.sent_command == -1 && b != ha->virt_bus) {
3754             ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3755         }
3756         /* cache or raw service */
3757         if (ha->status == S_BSY) {
3758             TRACE2(("Controller busy -> retry !\n"));
3759             if (scp->SCp.sent_command == GDT_MOUNT)
3760                 scp->SCp.sent_command = GDT_CLUST_INFO;
3761             /* retry */
3762             return 2;
3763         }
3764         if (scp->SCp.Status == GDTH_MAP_SG)
3765             pci_unmap_sg(ha->pdev,scp->request_buffer,
3766                          scp->use_sg,scp->SCp.Message);
3767         else if (scp->SCp.Status == GDTH_MAP_SINGLE)
3768             pci_unmap_page(ha->pdev,scp->SCp.dma_handle,
3769                            scp->request_bufflen,scp->SCp.Message);
3770         if (scp->SCp.buffer) {
3771             dma_addr_t addr;
3772             addr = (dma_addr_t)*(ulong32 *)&scp->SCp.buffer;
3773             if (scp->host_scribble)
3774                 addr += (dma_addr_t)
3775                     ((ulong64)(*(ulong32 *)&scp->host_scribble) << 32);
3776             pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE);
3777         }
3778
3779         if (ha->status == S_OK) {
3780             scp->SCp.Status = S_OK;
3781             scp->SCp.Message = ha->info;
3782             if (scp->SCp.sent_command != -1) {
3783                 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3784                         scp->SCp.sent_command));
3785                 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3786                 if (scp->SCp.sent_command == GDT_CLUST_INFO) {
3787                     ha->hdr[t].cluster_type = (unchar)ha->info;
3788                     if (!(ha->hdr[t].cluster_type &
3789                         CLUSTER_MOUNTED)) {
3790                         /* NOT MOUNTED -> MOUNT */
3791                         scp->SCp.sent_command = GDT_MOUNT;
3792                         if (ha->hdr[t].cluster_type &
3793                             CLUSTER_RESERVED) {
3794                             /* cluster drive RESERVED (on the other node) */
3795                             scp->SCp.phase = -2;      /* reservation conflict */
3796                         }
3797                     } else {
3798                         scp->SCp.sent_command = -1;
3799                     }
3800                 } else {
3801                     if (scp->SCp.sent_command == GDT_MOUNT) {
3802                         ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3803                         ha->hdr[t].media_changed = TRUE;
3804                     } else if (scp->SCp.sent_command == GDT_UNMOUNT) {
3805                         ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3806                         ha->hdr[t].media_changed = TRUE;
3807                     }
3808                     scp->SCp.sent_command = -1;
3809                 }
3810                 /* retry */
3811                 scp->SCp.this_residual = HIGH_PRI;
3812                 return 2;
3813             } else {
3814                 /* RESERVE/RELEASE ? */
3815                 if (scp->cmnd[0] == RESERVE) {
3816                     ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3817                 } else if (scp->cmnd[0] == RELEASE) {
3818                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3819                 }
3820                 scp->result = DID_OK << 16;
3821                 scp->sense_buffer[0] = 0;
3822             }
3823         } else {
3824             scp->SCp.Status = ha->status;
3825             scp->SCp.Message = ha->info;
3826
3827             if (scp->SCp.sent_command != -1) {
3828                 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3829                         scp->SCp.sent_command, ha->status));
3830                 if (scp->SCp.sent_command == GDT_SCAN_START ||
3831                     scp->SCp.sent_command == GDT_SCAN_END) {
3832                     scp->SCp.sent_command = -1;
3833                     /* retry */
3834                     scp->SCp.this_residual = HIGH_PRI;
3835                     return 2;
3836                 }
3837                 memset((char*)scp->sense_buffer,0,16);
3838                 scp->sense_buffer[0] = 0x70;
3839                 scp->sense_buffer[2] = NOT_READY;
3840                 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3841             } else if (service == CACHESERVICE) {
3842                 if (ha->status == S_CACHE_UNKNOWN &&
3843                     (ha->hdr[t].cluster_type &
3844                      CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3845                     /* bus reset -> force GDT_CLUST_INFO */
3846                     ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3847                 }
3848                 memset((char*)scp->sense_buffer,0,16);
3849                 if (ha->status == (ushort)S_CACHE_RESERV) {
3850                     scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3851                 } else {
3852                     scp->sense_buffer[0] = 0x70;
3853                     scp->sense_buffer[2] = NOT_READY;
3854                     scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3855                 }
3856                 if (scp->done != gdth_scsi_done) {
3857                     ha->dvr.size = sizeof(ha->dvr.eu.sync);
3858                     ha->dvr.eu.sync.ionode  = hanum;
3859                     ha->dvr.eu.sync.service = service;
3860                     ha->dvr.eu.sync.status  = ha->status;
3861                     ha->dvr.eu.sync.info    = ha->info;
3862                     ha->dvr.eu.sync.hostdrive = t;
3863                     if (ha->status >= 0x8000)
3864                         gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3865                     else
3866                         gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3867                 }
3868             } else {
3869                 /* sense buffer filled from controller firmware (DMA) */
3870                 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3871                     scp->result = DID_BAD_TARGET << 16;
3872                 } else {
3873                     scp->result = (DID_OK << 16) | ha->info;
3874                 }
3875             }
3876         }
3877         if (!scp->SCp.have_data_in)
3878             scp->SCp.have_data_in++;
3879         else
3880             return 1;
3881     }
3882
3883     return 0;
3884 }
3885
3886 static char *async_cache_tab[] = {
3887 /* 0*/  "\011\000\002\002\002\004\002\006\004"
3888         "GDT HA %u, service %u, async. status %u/%lu unknown",
3889 /* 1*/  "\011\000\002\002\002\004\002\006\004"
3890         "GDT HA %u, service %u, async. status %u/%lu unknown",
3891 /* 2*/  "\005\000\002\006\004"
3892         "GDT HA %u, Host Drive %lu not ready",
3893 /* 3*/  "\005\000\002\006\004"
3894         "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",
3895 /* 4*/  "\005\000\002\006\004"
3896         "GDT HA %u, mirror update on Host Drive %lu failed",
3897 /* 5*/  "\005\000\002\006\004"
3898         "GDT HA %u, Mirror Drive %lu failed",
3899 /* 6*/  "\005\000\002\006\004"
3900         "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",
3901 /* 7*/  "\005\000\002\006\004"
3902         "GDT HA %u, Host Drive %lu write protected",
3903 /* 8*/  "\005\000\002\006\004"
3904         "GDT HA %u, media changed in Host Drive %lu",
3905 /* 9*/  "\005\000\002\006\004"
3906         "GDT HA %u, Host Drive %lu is offline",
3907 /*10*/  "\005\000\002\006\004"
3908         "GDT HA %u, media change of Mirror Drive %lu",
3909 /*11*/  "\005\000\002\006\004"
3910         "GDT HA %u, Mirror Drive %lu is write protected",
3911 /*12*/  "\005\000\002\006\004"
3912         "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3913 /*13*/  "\007\000\002\006\002\010\002"
3914         "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3915 /*14*/  "\005\000\002\006\002"
3916         "GDT HA %u, Array Drive %u: FAIL state entered",
3917 /*15*/  "\005\000\002\006\002"
3918         "GDT HA %u, Array Drive %u: error",
3919 /*16*/  "\007\000\002\006\002\010\002"
3920         "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3921 /*17*/  "\005\000\002\006\002"
3922         "GDT HA %u, Array Drive %u: parity build failed",
3923 /*18*/  "\005\000\002\006\002"
3924         "GDT HA %u, Array Drive %u: drive rebuild failed",
3925 /*19*/  "\005\000\002\010\002"
3926         "GDT HA %u, Test of Hot Fix %u failed",
3927 /*20*/  "\005\000\002\006\002"
3928         "GDT HA %u, Array Drive %u: drive build finished successfully",
3929 /*21*/  "\005\000\002\006\002"
3930         "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3931 /*22*/  "\007\000\002\006\002\010\002"
3932         "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3933 /*23*/  "\005\000\002\006\002"
3934         "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3935 /*24*/  "\005\000\002\010\002"
3936         "GDT HA %u, mirror update on Cache Drive %u completed",
3937 /*25*/  "\005\000\002\010\002"
3938         "GDT HA %u, mirror update on Cache Drive %lu failed",
3939 /*26*/  "\005\000\002\006\002"
3940         "GDT HA %u, Array Drive %u: drive rebuild started",
3941 /*27*/  "\005\000\002\012\001"
3942         "GDT HA %u, Fault bus %u: SHELF OK detected",
3943 /*28*/  "\005\000\002\012\001"
3944         "GDT HA %u, Fault bus %u: SHELF not OK detected",
3945 /*29*/  "\007\000\002\012\001\013\001"
3946         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3947 /*30*/  "\007\000\002\012\001\013\001"
3948         "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3949 /*31*/  "\007\000\002\012\001\013\001"
3950         "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3951 /*32*/  "\007\000\002\012\001\013\001"
3952         "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3953 /*33*/  "\007\000\002\012\001\013\001"
3954         "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3955 /*34*/  "\011\000\002\012\001\013\001\006\004"
3956         "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3957 /*35*/  "\007\000\002\012\001\013\001"
3958         "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3959 /*36*/  "\007\000\002\012\001\013\001"
3960         "GDT HA %u, Fault bus %u, ID %u: disk not available",
3961 /*37*/  "\007\000\002\012\001\006\004"
3962         "GDT HA %u, Fault bus %u: swap detected (%lu)",
3963 /*38*/  "\007\000\002\012\001\013\001"
3964         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3965 /*39*/  "\007\000\002\012\001\013\001"
3966         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3967 /*40*/  "\007\000\002\012\001\013\001"
3968         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3969 /*41*/  "\007\000\002\012\001\013\001"
3970         "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3971 /*42*/  "\005\000\002\006\002"
3972         "GDT HA %u, Array Drive %u: drive build started",
3973 /*43*/  "\003\000\002"
3974         "GDT HA %u, DRAM parity error detected",
3975 /*44*/  "\005\000\002\006\002"
3976         "GDT HA %u, Mirror Drive %u: update started",
3977 /*45*/  "\007\000\002\006\002\010\002"
3978         "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3979 /*46*/  "\005\000\002\006\002"
3980         "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3981 /*47*/  "\005\000\002\006\002"
3982         "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3983 /*48*/  "\005\000\002\006\002"
3984         "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3985 /*49*/  "\005\000\002\006\002"
3986         "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3987 /*50*/  "\007\000\002\012\001\013\001"
3988         "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3989 /*51*/  "\005\000\002\006\002"
3990         "GDT HA %u, Array Drive %u: expand started",
3991 /*52*/  "\005\000\002\006\002"
3992         "GDT HA %u, Array Drive %u: expand finished successfully",
3993 /*53*/  "\005\000\002\006\002"
3994         "GDT HA %u, Array Drive %u: expand failed",
3995 /*54*/  "\003\000\002"
3996         "GDT HA %u, CPU temperature critical",
3997 /*55*/  "\003\000\002"
3998         "GDT HA %u, CPU temperature OK",
3999 /*56*/  "\005\000\002\006\004"
4000         "GDT HA %u, Host drive %lu created",
4001 /*57*/  "\005\000\002\006\002"
4002         "GDT HA %u, Array Drive %u: expand restarted",
4003 /*58*/  "\005\000\002\006\002"
4004         "GDT HA %u, Array Drive %u: expand stopped",
4005 /*59*/  "\005\000\002\010\002"
4006         "GDT HA %u, Mirror Drive %u: drive build quited",
4007 /*60*/  "\005\000\002\006\002"
4008         "GDT HA %u, Array Drive %u: parity build quited",
4009 /*61*/  "\005\000\002\006\002"
4010         "GDT HA %u, Array Drive %u: drive rebuild quited",
4011 /*62*/  "\005\000\002\006\002"
4012         "GDT HA %u, Array Drive %u: parity verify started",
4013 /*63*/  "\005\000\002\006\002"
4014         "GDT HA %u, Array Drive %u: parity verify done",
4015 /*64*/  "\005\000\002\006\002"
4016         "GDT HA %u, Array Drive %u: parity verify failed",
4017 /*65*/  "\005\000\002\006\002"
4018         "GDT HA %u, Array Drive %u: parity error detected",
4019 /*66*/  "\005\000\002\006\002"
4020         "GDT HA %u, Array Drive %u: parity verify quited",
4021 /*67*/  "\005\000\002\006\002"
4022         "GDT HA %u, Host Drive %u reserved",
4023 /*68*/  "\005\000\002\006\002"
4024         "GDT HA %u, Host Drive %u mounted and released",
4025 /*69*/  "\005\000\002\006\002"
4026         "GDT HA %u, Host Drive %u released",
4027 /*70*/  "\003\000\002"
4028         "GDT HA %u, DRAM error detected and corrected with ECC",
4029 /*71*/  "\003\000\002"
4030         "GDT HA %u, Uncorrectable DRAM error detected with ECC",
4031 /*72*/  "\011\000\002\012\001\013\001\014\001"
4032         "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
4033 /*73*/  "\005\000\002\006\002"
4034         "GDT HA %u, Host drive %u resetted locally",
4035 /*74*/  "\005\000\002\006\002"
4036         "GDT HA %u, Host drive %u resetted remotely",
4037 /*75*/  "\003\000\002"
4038         "GDT HA %u, async. status 75 unknown",
4039 };
4040
4041
4042 static int gdth_async_event(int hanum)
4043 {
4044     gdth_ha_str *ha;
4045     gdth_cmd_str *cmdp;
4046     int cmd_index;
4047
4048     ha  = HADATA(gdth_ctr_tab[hanum]);
4049     cmdp= ha->pccb;
4050     TRACE2(("gdth_async_event() ha %d serv %d\n",
4051             hanum,ha->service));
4052
4053     if (ha->service == SCREENSERVICE) {
4054         if (ha->status == MSG_REQUEST) {
4055             while (gdth_test_busy(hanum))
4056                 gdth_delay(0);
4057             cmdp->Service       = SCREENSERVICE;
4058             cmdp->RequestBuffer = SCREEN_CMND;
4059             cmd_index = gdth_get_cmd_index(hanum);
4060             gdth_set_sema0(hanum);
4061             cmdp->OpCode        = GDT_READ;
4062             cmdp->BoardNode     = LOCALBOARD;
4063             cmdp->u.screen.reserved  = 0;
4064             cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
4065             cmdp->u.screen.su.msg.msg_addr  = ha->msg_phys;
4066             ha->cmd_offs_dpmem = 0;
4067             ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
4068                 + sizeof(ulong64);
4069             ha->cmd_cnt = 0;
4070             gdth_copy_command(hanum);
4071             if (ha->type == GDT_EISA)
4072                 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
4073             else if (ha->type == GDT_ISA)
4074                 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
4075             else
4076                 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
4077                        (ushort)((ha->brd_phys>>3)&0x1f));
4078             gdth_release_event(hanum);
4079         }
4080
4081     } else {
4082         if (ha->type == GDT_PCIMPR &&
4083             (ha->fw_vers & 0xff) >= 0x1a) {
4084             ha->dvr.size = 0;
4085             ha->dvr.eu.async.ionode = hanum;
4086             ha->dvr.eu.async.status  = ha->status;
4087             /* severity and event_string already set! */
4088         } else {
4089             ha->dvr.size = sizeof(ha->dvr.eu.async);
4090             ha->dvr.eu.async.ionode   = hanum;
4091             ha->dvr.eu.async.service = ha->service;
4092             ha->dvr.eu.async.status  = ha->status;
4093             ha->dvr.eu.async.info    = ha->info;
4094             *(ulong32 *)ha->dvr.eu.async.scsi_coord  = ha->info2;
4095         }
4096         gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
4097         gdth_log_event( &ha->dvr, NULL );
4098
4099         /* new host drive from expand? */
4100         if (ha->service == CACHESERVICE && ha->status == 56) {
4101             TRACE2(("gdth_async_event(): new host drive %d created\n",
4102                     (ushort)ha->info));
4103             /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
4104         }
4105     }
4106     return 1;
4107 }
4108
4109 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
4110 {
4111     gdth_stackframe stack;
4112     char *f = NULL;
4113     int i,j;
4114
4115     TRACE2(("gdth_log_event()\n"));
4116     if (dvr->size == 0) {
4117         if (buffer == NULL) {
4118             printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
4119         } else {
4120             sprintf(buffer,"Adapter %d: %s\n",
4121                 dvr->eu.async.ionode,dvr->event_string);
4122         }
4123     } else if (dvr->eu.async.service == CACHESERVICE &&
4124         INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
4125         TRACE2(("GDT: Async. event cache service, event no.: %d\n",
4126                 dvr->eu.async.status));
4127
4128         f = async_cache_tab[dvr->eu.async.status];
4129
4130         /* i: parameter to push, j: stack element to fill */
4131         for (j=0,i=1; i < f[0]; i+=2) {
4132             switch (f[i+1]) {
4133               case 4:
4134                 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
4135                 break;
4136               case 2:
4137                 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
4138                 break;
4139               case 1:
4140                 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
4141                 break;
4142               default:
4143                 break;
4144             }
4145         }
4146
4147         if (buffer == NULL) {
4148             printk(&f[(int)f[0]],stack);
4149             printk("\n");
4150         } else {
4151             sprintf(buffer,&f[(int)f[0]],stack);
4152         }
4153
4154     } else {
4155         if (buffer == NULL) {
4156             printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
4157                    dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4158         } else {
4159             sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
4160                     dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
4161         }
4162     }
4163 }
4164
4165 #ifdef GDTH_STATISTICS
4166 static void gdth_timeout(ulong data)
4167 {
4168     ulong32 i;
4169     Scsi_Cmnd *nscp;
4170     gdth_ha_str *ha;
4171     ulong flags;
4172     int hanum = 0;
4173
4174     ha = HADATA(gdth_ctr_tab[hanum]);
4175     spin_lock_irqsave(&ha->smp_lock, flags);
4176
4177     for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
4178         if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
4179             ++act_stats;
4180
4181     for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
4182         ++act_rq;
4183
4184     TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
4185             act_ints, act_ios, act_stats, act_rq));
4186     act_ints = act_ios = 0;
4187
4188     gdth_timer.expires = jiffies + 30 * HZ;
4189     add_timer(&gdth_timer);
4190     spin_unlock_irqrestore(&ha->smp_lock, flags);
4191 }
4192 #endif
4193
4194 static void __init internal_setup(char *str,int *ints)
4195 {
4196     int i, argc;
4197     char *cur_str, *argv;
4198
4199     TRACE2(("internal_setup() str %s ints[0] %d\n",
4200             str ? str:"NULL", ints ? ints[0]:0));
4201
4202     /* read irq[] from ints[] */
4203     if (ints) {
4204         argc = ints[0];
4205         if (argc > 0) {
4206             if (argc > MAXHA)
4207                 argc = MAXHA;
4208             for (i = 0; i < argc; ++i)
4209                 irq[i] = ints[i+1];
4210         }
4211     }
4212
4213     /* analyse string */
4214     argv = str;
4215     while (argv && (cur_str = strchr(argv, ':'))) {
4216         int val = 0, c = *++cur_str;
4217
4218         if (c == 'n' || c == 'N')
4219             val = 0;
4220         else if (c == 'y' || c == 'Y')
4221             val = 1;
4222         else
4223             val = (int)simple_strtoul(cur_str, NULL, 0);
4224
4225         if (!strncmp(argv, "disable:", 8))
4226             disable = val;
4227         else if (!strncmp(argv, "reserve_mode:", 13))
4228             reserve_mode = val;
4229         else if (!strncmp(argv, "reverse_scan:", 13))
4230             reverse_scan = val;
4231         else if (!strncmp(argv, "hdr_channel:", 12))
4232             hdr_channel = val;
4233         else if (!strncmp(argv, "max_ids:", 8))
4234             max_ids = val;
4235         else if (!strncmp(argv, "rescan:", 7))
4236             rescan = val;
4237         else if (!strncmp(argv, "virt_ctr:", 9))
4238             virt_ctr = val;
4239         else if (!strncmp(argv, "shared_access:", 14))
4240             shared_access = val;
4241         else if (!strncmp(argv, "probe_eisa_isa:", 15))
4242             probe_eisa_isa = val;
4243         else if (!strncmp(argv, "reserve_list:", 13)) {
4244             reserve_list[0] = val;
4245             for (i = 1; i < MAX_RES_ARGS; i++) {
4246                 cur_str = strchr(cur_str, ',');
4247                 if (!cur_str)
4248                     break;
4249                 if (!isdigit((int)*++cur_str)) {
4250                     --cur_str;
4251                     break;
4252                 }
4253                 reserve_list[i] =
4254                     (int)simple_strtoul(cur_str, NULL, 0);
4255             }
4256             if (!cur_str)
4257                 break;
4258             argv = ++cur_str;
4259             continue;
4260         }
4261
4262         if ((argv = strchr(argv, ',')))
4263             ++argv;
4264     }
4265 }
4266
4267 int __init option_setup(char *str)
4268 {
4269     int ints[MAXHA];
4270     char *cur = str;
4271     int i = 1;
4272
4273     TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
4274
4275     while (cur && isdigit(*cur) && i <= MAXHA) {
4276         ints[i++] = simple_strtoul(cur, NULL, 0);
4277         if ((cur = strchr(cur, ',')) != NULL) cur++;
4278     }
4279
4280     ints[0] = i - 1;
4281     internal_setup(cur, ints);
4282     return 1;
4283 }
4284
4285 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4286 static int __init gdth_detect(struct scsi_host_template *shtp)
4287 #else
4288 static int __init gdth_detect(Scsi_Host_Template *shtp)
4289 #endif
4290 {
4291     struct Scsi_Host *shp;
4292     gdth_pci_str pcistr[MAXHA];
4293     gdth_ha_str *ha;
4294     ulong32 isa_bios;
4295     ushort eisa_slot;
4296     int i,hanum,cnt,ctr,err;
4297     unchar b;
4298
4299
4300 #ifdef DEBUG_GDTH
4301     printk("GDT: This driver contains debugging information !! Trace level = %d\n",
4302         DebugState);
4303     printk("     Destination of debugging information: ");
4304 #ifdef __SERIAL__
4305 #ifdef __COM2__
4306     printk("Serial port COM2\n");
4307 #else
4308     printk("Serial port COM1\n");
4309 #endif
4310 #else
4311     printk("Console\n");
4312 #endif
4313     gdth_delay(3000);
4314 #endif
4315
4316     TRACE(("gdth_detect()\n"));
4317
4318     if (disable) {
4319         printk("GDT-HA: Controller driver disabled from command line !\n");
4320         return 0;
4321     }
4322
4323     printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",GDTH_VERSION_STR);
4324     /* initializations */
4325     gdth_polling = TRUE; b = 0;
4326     gdth_clear_events();
4327
4328     /* As default we do not probe for EISA or ISA controllers */
4329     if (probe_eisa_isa) {
4330         /* scanning for controllers, at first: ISA controller */
4331         for (isa_bios=0xc8000UL; isa_bios<=0xd8000UL; isa_bios+=0x8000UL) {
4332             dma_addr_t scratch_dma_handle;
4333             scratch_dma_handle = 0;
4334
4335             if (gdth_ctr_count >= MAXHA)
4336                 break;
4337             if (gdth_search_isa(isa_bios)) {        /* controller found */
4338                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4339                 if (shp == NULL)
4340                     continue;
4341
4342                 ha = HADATA(shp);
4343                 if (!gdth_init_isa(isa_bios,ha)) {
4344                     scsi_unregister(shp);
4345                     continue;
4346                 }
4347 #ifdef __ia64__
4348                 break;
4349 #else
4350                 /* controller found and initialized */
4351                 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4352                        isa_bios,ha->irq,ha->drq);
4353
4354                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4355                     printk("GDT-ISA: Unable to allocate IRQ\n");
4356                     scsi_unregister(shp);
4357                     continue;
4358                 }
4359                 if (request_dma(ha->drq,"gdth")) {
4360                     printk("GDT-ISA: Unable to allocate DMA channel\n");
4361                     free_irq(ha->irq,ha);
4362                     scsi_unregister(shp);
4363                     continue;
4364                 }
4365                 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4366                 enable_dma(ha->drq);
4367                 shp->unchecked_isa_dma = 1;
4368                 shp->irq = ha->irq;
4369                 shp->dma_channel = ha->drq;
4370                 hanum = gdth_ctr_count;
4371                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4372                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4373
4374                 NUMDATA(shp)->hanum = (ushort)hanum;
4375                 NUMDATA(shp)->busnum= 0;
4376
4377                 ha->pccb = CMDDATA(shp);
4378                 ha->ccb_phys = 0L;
4379                 ha->pdev = NULL;
4380                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4381                                                     &scratch_dma_handle);
4382                 ha->scratch_phys = scratch_dma_handle;
4383                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4384                                                 &scratch_dma_handle);
4385                 ha->msg_phys = scratch_dma_handle;
4386 #ifdef INT_COAL
4387                 ha->coal_stat = (gdth_coal_status *)
4388                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4389                         MAXOFFSETS, &scratch_dma_handle);
4390                 ha->coal_stat_phys = scratch_dma_handle;
4391 #endif
4392
4393                 ha->scratch_busy = FALSE;
4394                 ha->req_first = NULL;
4395                 ha->tid_cnt = MAX_HDRIVES;
4396                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4397                     ha->tid_cnt = max_ids;
4398                 for (i=0; i<GDTH_MAXCMDS; ++i)
4399                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4400                 ha->scan_mode = rescan ? 0x10 : 0;
4401
4402                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4403                     !gdth_search_drives(hanum)) {
4404                     printk("GDT-ISA: Error during device scan\n");
4405                     --gdth_ctr_count;
4406                     --gdth_ctr_vcount;
4407
4408 #ifdef INT_COAL
4409                     if (ha->coal_stat)
4410                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4411                                             MAXOFFSETS, ha->coal_stat,
4412                                             ha->coal_stat_phys);
4413 #endif
4414                     if (ha->pscratch)
4415                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4416                                             ha->pscratch, ha->scratch_phys);
4417                     if (ha->pmsg)
4418                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4419                                             ha->pmsg, ha->msg_phys);
4420
4421                     free_irq(ha->irq,ha);
4422                     scsi_unregister(shp);
4423                     continue;
4424                 }
4425                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4426                     hdr_channel = ha->bus_cnt;
4427                 ha->virt_bus = hdr_channel;
4428
4429 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4430     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4431                 shp->highmem_io  = 0;
4432 #endif
4433                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4434                     shp->max_cmd_len = 16;
4435
4436                 shp->max_id      = ha->tid_cnt;
4437                 shp->max_lun     = MAXLUN;
4438                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4439                 if (virt_ctr) {
4440                     virt_ctr = 1;
4441                     /* register addit. SCSI channels as virtual controllers */
4442                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4443                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4444                         shp->unchecked_isa_dma = 1;
4445                         shp->irq = ha->irq;
4446                         shp->dma_channel = ha->drq;
4447                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4448                         NUMDATA(shp)->hanum = (ushort)hanum;
4449                         NUMDATA(shp)->busnum = b;
4450                     }
4451                 }
4452
4453                 spin_lock_init(&ha->smp_lock);
4454                 gdth_enable_int(hanum);
4455 #endif /* !__ia64__ */
4456             }
4457         }
4458
4459         /* scanning for EISA controllers */
4460         for (eisa_slot=0x1000; eisa_slot<=0x8000; eisa_slot+=0x1000) {
4461             dma_addr_t scratch_dma_handle;
4462             scratch_dma_handle = 0;
4463
4464             if (gdth_ctr_count >= MAXHA)
4465                 break;
4466             if (gdth_search_eisa(eisa_slot)) {      /* controller found */
4467                 shp = scsi_register(shtp,sizeof(gdth_ext_str));
4468                 if (shp == NULL)
4469                     continue;
4470
4471                 ha = HADATA(shp);
4472                 if (!gdth_init_eisa(eisa_slot,ha)) {
4473                     scsi_unregister(shp);
4474                     continue;
4475                 }
4476                 /* controller found and initialized */
4477                 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4478                        eisa_slot>>12,ha->irq);
4479
4480                 if (request_irq(ha->irq,gdth_interrupt,IRQF_DISABLED,"gdth",ha)) {
4481                     printk("GDT-EISA: Unable to allocate IRQ\n");
4482                     scsi_unregister(shp);
4483                     continue;
4484                 }
4485                 shp->unchecked_isa_dma = 0;
4486                 shp->irq = ha->irq;
4487                 shp->dma_channel = 0xff;
4488                 hanum = gdth_ctr_count;
4489                 gdth_ctr_tab[gdth_ctr_count++] = shp;
4490                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4491
4492                 NUMDATA(shp)->hanum = (ushort)hanum;
4493                 NUMDATA(shp)->busnum= 0;
4494                 TRACE2(("EISA detect Bus 0: hanum %d\n",
4495                         NUMDATA(shp)->hanum));
4496
4497                 ha->pccb = CMDDATA(shp);
4498                 ha->ccb_phys = 0L;
4499
4500                 ha->pdev = NULL;
4501                 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4502                                                     &scratch_dma_handle);
4503                 ha->scratch_phys = scratch_dma_handle;
4504                 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4505                                                 &scratch_dma_handle);
4506                 ha->msg_phys = scratch_dma_handle;
4507 #ifdef INT_COAL
4508                 ha->coal_stat = (gdth_coal_status *)
4509                     pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4510                                          MAXOFFSETS, &scratch_dma_handle);
4511                 ha->coal_stat_phys = scratch_dma_handle;
4512 #endif
4513                 ha->ccb_phys =
4514                     pci_map_single(ha->pdev,ha->pccb,
4515                                    sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4516                 ha->scratch_busy = FALSE;
4517                 ha->req_first = NULL;
4518                 ha->tid_cnt = MAX_HDRIVES;
4519                 if (max_ids > 0 && max_ids < ha->tid_cnt)
4520                     ha->tid_cnt = max_ids;
4521                 for (i=0; i<GDTH_MAXCMDS; ++i)
4522                     ha->cmd_tab[i].cmnd = UNUSED_CMND;
4523                 ha->scan_mode = rescan ? 0x10 : 0;
4524
4525                 if (ha->pscratch == NULL || ha->pmsg == NULL ||
4526                     !gdth_search_drives(hanum)) {
4527                     printk("GDT-EISA: Error during device scan\n");
4528                     --gdth_ctr_count;
4529                     --gdth_ctr_vcount;
4530 #ifdef INT_COAL
4531                     if (ha->coal_stat)
4532                         pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4533                                             MAXOFFSETS, ha->coal_stat,
4534                                             ha->coal_stat_phys);
4535 #endif
4536                     if (ha->pscratch)
4537                         pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4538                                             ha->pscratch, ha->scratch_phys);
4539                     if (ha->pmsg)
4540                         pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4541                                             ha->pmsg, ha->msg_phys);
4542                     if (ha->ccb_phys)
4543                         pci_unmap_single(ha->pdev,ha->ccb_phys,
4544                                         sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4545                     free_irq(ha->irq,ha);
4546                     scsi_unregister(shp);
4547                     continue;
4548                 }
4549                 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4550                     hdr_channel = ha->bus_cnt;
4551                 ha->virt_bus = hdr_channel;
4552
4553 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) && \
4554     LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4555                 shp->highmem_io  = 0;
4556 #endif
4557                 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4558                     shp->max_cmd_len = 16;
4559
4560                 shp->max_id      = ha->tid_cnt;
4561                 shp->max_lun     = MAXLUN;
4562                 shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4563                 if (virt_ctr) {
4564                     virt_ctr = 1;
4565                     /* register addit. SCSI channels as virtual controllers */
4566                     for (b = 1; b < ha->bus_cnt + 1; ++b) {
4567                         shp = scsi_register(shtp,sizeof(gdth_num_str));
4568                         shp->unchecked_isa_dma = 0;
4569                         shp->irq = ha->irq;
4570                         shp->dma_channel = 0xff;
4571                         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4572                         NUMDATA(shp)->hanum = (ushort)hanum;
4573                         NUMDATA(shp)->busnum = b;
4574                     }
4575                 }
4576
4577                 spin_lock_init(&ha->smp_lock);
4578                 gdth_enable_int(hanum);
4579             }
4580         }
4581     }
4582
4583     /* scanning for PCI controllers */
4584     cnt = gdth_search_pci(pcistr);
4585     printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt);
4586     gdth_sort_pci(pcistr,cnt);
4587     for (ctr = 0; ctr < cnt; ++ctr) {
4588         dma_addr_t scratch_dma_handle;
4589         scratch_dma_handle = 0;
4590
4591         if (gdth_ctr_count >= MAXHA)
4592             break;
4593         shp = scsi_register(shtp,sizeof(gdth_ext_str));
4594         if (shp == NULL)
4595             continue;
4596
4597         ha = HADATA(shp);
4598         if (!gdth_init_pci(&pcistr[ctr],ha)) {
4599             scsi_unregister(shp);
4600             continue;
4601         }
4602         /* controller found and initialized */
4603         printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4604                pcistr[ctr].bus,PCI_SLOT(pcistr[ctr].device_fn),ha->irq);
4605
4606         if (request_irq(ha->irq, gdth_interrupt,
4607                         IRQF_DISABLED|IRQF_SHARED, "gdth", ha))
4608         {
4609             printk("GDT-PCI: Unable to allocate IRQ\n");
4610             scsi_unregister(shp);
4611             continue;
4612         }
4613         shp->unchecked_isa_dma = 0;
4614         shp->irq = ha->irq;
4615         shp->dma_channel = 0xff;
4616         hanum = gdth_ctr_count;
4617         gdth_ctr_tab[gdth_ctr_count++] = shp;
4618         gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4619
4620         NUMDATA(shp)->hanum = (ushort)hanum;
4621         NUMDATA(shp)->busnum= 0;
4622
4623         ha->pccb = CMDDATA(shp);
4624         ha->ccb_phys = 0L;
4625
4626         ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4627                                             &scratch_dma_handle);
4628         ha->scratch_phys = scratch_dma_handle;
4629         ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4630                                         &scratch_dma_handle);
4631         ha->msg_phys = scratch_dma_handle;
4632 #ifdef INT_COAL
4633         ha->coal_stat = (gdth_coal_status *)
4634             pci_alloc_consistent(ha->pdev, sizeof(gdth_coal_status) *
4635                                  MAXOFFSETS, &scratch_dma_handle);
4636         ha->coal_stat_phys = scratch_dma_handle;
4637 #endif
4638         ha->scratch_busy = FALSE;
4639         ha->req_first = NULL;
4640         ha->tid_cnt = pcistr[ctr].device_id >= 0x200 ? MAXID : MAX_HDRIVES;
4641         if (max_ids > 0 && max_ids < ha->tid_cnt)
4642             ha->tid_cnt = max_ids;
4643         for (i=0; i<GDTH_MAXCMDS; ++i)
4644             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4645         ha->scan_mode = rescan ? 0x10 : 0;
4646
4647         err = FALSE;
4648         if (ha->pscratch == NULL || ha->pmsg == NULL ||
4649             !gdth_search_drives(hanum)) {
4650             err = TRUE;
4651         } else {
4652             if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4653                 hdr_channel = ha->bus_cnt;
4654             ha->virt_bus = hdr_channel;
4655
4656
4657 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
4658             scsi_set_pci_device(shp, pcistr[ctr].pdev);
4659 #endif
4660             if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat &GDT_64BIT)||
4661                 /* 64-bit DMA only supported from FW >= x.43 */
4662                 (!ha->dma64_support)) {
4663                 if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4664                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 32-bit DMA\n", hanum);
4665                     err = TRUE;
4666                 }
4667             } else {
4668                 shp->max_cmd_len = 16;
4669                 if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
4670                     printk("GDT-PCI %d: 64-bit DMA enabled\n", hanum);
4671                 } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
4672                     printk(KERN_WARNING "GDT-PCI %d: Unable to set 64/32-bit DMA\n", hanum);
4673                     err = TRUE;
4674                 }
4675             }
4676         }
4677
4678         if (err) {
4679             printk("GDT-PCI %d: Error during device scan\n", hanum);
4680             --gdth_ctr_count;
4681             --gdth_ctr_vcount;
4682 #ifdef INT_COAL
4683             if (ha->coal_stat)
4684                 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4685                                     MAXOFFSETS, ha->coal_stat,
4686                                     ha->coal_stat_phys);
4687 #endif
4688             if (ha->pscratch)
4689                 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4690                                     ha->pscratch, ha->scratch_phys);
4691             if (ha->pmsg)
4692                 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4693                                     ha->pmsg, ha->msg_phys);
4694             free_irq(ha->irq,ha);
4695             scsi_unregister(shp);
4696             continue;
4697         }
4698
4699         shp->max_id      = ha->tid_cnt;
4700         shp->max_lun     = MAXLUN;
4701         shp->max_channel = virt_ctr ? 0 : ha->bus_cnt;
4702         if (virt_ctr) {
4703             virt_ctr = 1;
4704             /* register addit. SCSI channels as virtual controllers */
4705             for (b = 1; b < ha->bus_cnt + 1; ++b) {
4706                 shp = scsi_register(shtp,sizeof(gdth_num_str));
4707                 shp->unchecked_isa_dma = 0;
4708                 shp->irq = ha->irq;
4709                 shp->dma_channel = 0xff;
4710                 gdth_ctr_vtab[gdth_ctr_vcount++] = shp;
4711                 NUMDATA(shp)->hanum = (ushort)hanum;
4712                 NUMDATA(shp)->busnum = b;
4713             }
4714         }
4715
4716         spin_lock_init(&ha->smp_lock);
4717         gdth_enable_int(hanum);
4718     }
4719
4720     TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count));
4721     if (gdth_ctr_count > 0) {
4722 #ifdef GDTH_STATISTICS
4723         TRACE2(("gdth_detect(): Initializing timer !\n"));
4724         init_timer(&gdth_timer);
4725         gdth_timer.expires = jiffies + HZ;
4726         gdth_timer.data = 0L;
4727         gdth_timer.function = gdth_timeout;
4728         add_timer(&gdth_timer);
4729 #endif
4730         major = register_chrdev(0,"gdth",&gdth_fops);
4731         notifier_disabled = 0;
4732         register_reboot_notifier(&gdth_notifier);
4733     }
4734     gdth_polling = FALSE;
4735     return gdth_ctr_vcount;
4736 }
4737
4738 static int gdth_release(struct Scsi_Host *shp)
4739 {
4740     int hanum;
4741     gdth_ha_str *ha;
4742
4743     TRACE2(("gdth_release()\n"));
4744     if (NUMDATA(shp)->busnum == 0) {
4745         hanum = NUMDATA(shp)->hanum;
4746         ha    = HADATA(gdth_ctr_tab[hanum]);
4747         if (ha->sdev) {
4748             scsi_free_host_dev(ha->sdev);
4749             ha->sdev = NULL;
4750         }
4751         gdth_flush(hanum);
4752
4753         if (shp->irq) {
4754             free_irq(shp->irq,ha);
4755         }
4756 #ifndef __ia64__
4757         if (shp->dma_channel != 0xff) {
4758             free_dma(shp->dma_channel);
4759         }
4760 #endif
4761 #ifdef INT_COAL
4762         if (ha->coal_stat)
4763             pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
4764                                 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
4765 #endif
4766         if (ha->pscratch)
4767             pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4768                                 ha->pscratch, ha->scratch_phys);
4769         if (ha->pmsg)
4770             pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4771                                 ha->pmsg, ha->msg_phys);
4772         if (ha->ccb_phys)
4773             pci_unmap_single(ha->pdev,ha->ccb_phys,
4774                              sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
4775         gdth_ctr_released++;
4776         TRACE2(("gdth_release(): HA %d of %d\n",
4777                 gdth_ctr_released, gdth_ctr_count));
4778
4779         if (gdth_ctr_released == gdth_ctr_count) {
4780 #ifdef GDTH_STATISTICS
4781             del_timer(&gdth_timer);
4782 #endif
4783             unregister_chrdev(major,"gdth");
4784             unregister_reboot_notifier(&gdth_notifier);
4785         }
4786     }
4787
4788     scsi_unregister(shp);
4789     return 0;
4790 }
4791
4792
4793 static const char *gdth_ctr_name(int hanum)
4794 {
4795     gdth_ha_str *ha;
4796
4797     TRACE2(("gdth_ctr_name()\n"));
4798
4799     ha    = HADATA(gdth_ctr_tab[hanum]);
4800
4801     if (ha->type == GDT_EISA) {
4802         switch (ha->stype) {
4803           case GDT3_ID:
4804             return("GDT3000/3020");
4805           case GDT3A_ID:
4806             return("GDT3000A/3020A/3050A");
4807           case GDT3B_ID:
4808             return("GDT3000B/3010A");
4809         }
4810     } else if (ha->type == GDT_ISA) {
4811         return("GDT2000/2020");
4812     } else if (ha->type == GDT_PCI) {
4813         switch (ha->stype) {
4814           case PCI_DEVICE_ID_VORTEX_GDT60x0:
4815             return("GDT6000/6020/6050");
4816           case PCI_DEVICE_ID_VORTEX_GDT6000B:
4817             return("GDT6000B/6010");
4818         }
4819     }
4820     /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
4821
4822     return("");
4823 }
4824
4825 static const char *gdth_info(struct Scsi_Host *shp)
4826 {
4827     int hanum;
4828     gdth_ha_str *ha;
4829
4830     TRACE2(("gdth_info()\n"));
4831     hanum = NUMDATA(shp)->hanum;
4832     ha    = HADATA(gdth_ctr_tab[hanum]);
4833
4834     return ((const char *)ha->binfo.type_string);
4835 }
4836
4837 static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
4838 {
4839     int i, hanum;
4840     gdth_ha_str *ha;
4841     ulong flags;
4842     Scsi_Cmnd *cmnd;
4843     unchar b;
4844
4845     TRACE2(("gdth_eh_bus_reset()\n"));
4846
4847     hanum = NUMDATA(scp->device->host)->hanum;
4848     b = virt_ctr ? NUMDATA(scp->device->host)->busnum : scp->device->channel;
4849     ha    = HADATA(gdth_ctr_tab[hanum]);
4850
4851     /* clear command tab */
4852     spin_lock_irqsave(&ha->smp_lock, flags);
4853     for (i = 0; i < GDTH_MAXCMDS; ++i) {
4854         cmnd = ha->cmd_tab[i].cmnd;
4855         if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
4856             ha->cmd_tab[i].cmnd = UNUSED_CMND;
4857     }
4858     spin_unlock_irqrestore(&ha->smp_lock, flags);
4859
4860     if (b == ha->virt_bus) {
4861         /* host drives */
4862         for (i = 0; i < MAX_HDRIVES; ++i) {
4863             if (ha->hdr[i].present) {
4864                 spin_lock_irqsave(&ha->smp_lock, flags);
4865                 gdth_polling = TRUE;
4866                 while (gdth_test_busy(hanum))
4867                     gdth_delay(0);
4868                 if (gdth_internal_cmd(hanum, CACHESERVICE,
4869                                       GDT_CLUST_RESET, i, 0, 0))
4870                     ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
4871                 gdth_polling = FALSE;
4872                 spin_unlock_irqrestore(&ha->smp_lock, flags);
4873             }
4874         }
4875     } else {
4876         /* raw devices */
4877         spin_lock_irqsave(&ha->smp_lock, flags);
4878         for (i = 0; i < MAXID; ++i)
4879             ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
4880         gdth_polling = TRUE;
4881         while (gdth_test_busy(hanum))
4882             gdth_delay(0);
4883         gdth_internal_cmd(hanum, SCSIRAWSERVICE, GDT_RESET_BUS,
4884                           BUS_L2P(ha,b), 0, 0);
4885         gdth_polling = FALSE;
4886         spin_unlock_irqrestore(&ha->smp_lock, flags);
4887     }
4888     return SUCCESS;
4889 }
4890
4891 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4892 static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
4893 #else
4894 static int gdth_bios_param(Disk *disk,kdev_t dev,int *ip)
4895 #endif
4896 {
4897     unchar b, t;
4898     int hanum;
4899     gdth_ha_str *ha;
4900     struct scsi_device *sd;
4901     unsigned capacity;
4902
4903 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
4904     sd = sdev;
4905     capacity = cap;
4906 #else
4907     sd = disk->device;
4908     capacity = disk->capacity;
4909 #endif
4910     hanum = NUMDATA(sd->host)->hanum;
4911     b = virt_ctr ? NUMDATA(sd->host)->busnum : sd->channel;
4912     t = sd->id;
4913     TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", hanum, b, t));
4914     ha = HADATA(gdth_ctr_tab[hanum]);
4915
4916     if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
4917         /* raw device or host drive without mapping information */
4918         TRACE2(("Evaluate mapping\n"));
4919         gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
4920     } else {
4921         ip[0] = ha->hdr[t].heads;
4922         ip[1] = ha->hdr[t].secs;
4923         ip[2] = capacity / ip[0] / ip[1];
4924     }
4925
4926     TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
4927             ip[0],ip[1],ip[2]));
4928     return 0;
4929 }
4930
4931
4932 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *))
4933 {
4934     int hanum;
4935     int priority;
4936
4937     TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4938
4939     scp->scsi_done = (void *)done;
4940     scp->SCp.have_data_in = 1;
4941     scp->SCp.phase = -1;
4942     scp->SCp.sent_command = -1;
4943     scp->SCp.Status = GDTH_MAP_NONE;
4944     scp->SCp.buffer = (struct scatterlist *)NULL;
4945
4946     hanum = NUMDATA(scp->device->host)->hanum;
4947 #ifdef GDTH_STATISTICS
4948     ++act_ios;
4949 #endif
4950
4951     priority = DEFAULT_PRI;
4952     if (scp->done == gdth_scsi_done)
4953         priority = scp->SCp.this_residual;
4954     else
4955         gdth_update_timeout(hanum, scp, scp->timeout_per_command * 6);
4956
4957     gdth_putq( hanum, scp, priority );
4958     gdth_next( hanum );
4959     return 0;
4960 }
4961
4962
4963 static int gdth_open(struct inode *inode, struct file *filep)
4964 {
4965     gdth_ha_str *ha;
4966     int i;
4967
4968     for (i = 0; i < gdth_ctr_count; i++) {
4969         ha = HADATA(gdth_ctr_tab[i]);
4970         if (!ha->sdev)
4971             ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]);
4972     }
4973
4974     TRACE(("gdth_open()\n"));
4975     return 0;
4976 }
4977
4978 static int gdth_close(struct inode *inode, struct file *filep)
4979 {
4980     TRACE(("gdth_close()\n"));
4981     return 0;
4982 }
4983
4984 static int ioc_event(void __user *arg)
4985 {
4986     gdth_ioctl_event evt;
4987     gdth_ha_str *ha;
4988     ulong flags;
4989
4990     if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) ||
4991         evt.ionode >= gdth_ctr_count)
4992         return -EFAULT;
4993     ha = HADATA(gdth_ctr_tab[evt.ionode]);
4994
4995     if (evt.erase == 0xff) {
4996         if (evt.event.event_source == ES_TEST)
4997             evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4998         else if (evt.event.event_source == ES_DRIVER)
4999             evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
5000         else if (evt.event.event_source == ES_SYNC)
5001             evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
5002         else
5003             evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
5004         spin_lock_irqsave(&ha->smp_lock, flags);
5005         gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
5006                          &evt.event.event_data);
5007         spin_unlock_irqrestore(&ha->smp_lock, flags);
5008     } else if (evt.erase == 0xfe) {
5009         gdth_clear_events();
5010     } else if (evt.erase == 0) {
5011         evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
5012     } else {
5013         gdth_readapp_event(ha, evt.erase, &evt.event);
5014     }
5015     if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
5016         return -EFAULT;
5017     return 0;
5018 }
5019
5020 static int ioc_lockdrv(void __user *arg)
5021 {
5022     gdth_ioctl_lockdrv ldrv;
5023     unchar i, j;
5024     ulong flags;
5025     gdth_ha_str *ha;
5026
5027     if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) ||
5028         ldrv.ionode >= gdth_ctr_count)
5029         return -EFAULT;
5030     ha = HADATA(gdth_ctr_tab[ldrv.ionode]);
5031
5032     for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
5033         j = ldrv.drives[i];
5034         if (j >= MAX_HDRIVES || !ha->hdr[j].present)
5035             continue;
5036         if (ldrv.lock) {
5037             spin_lock_irqsave(&ha->smp_lock, flags);
5038             ha->hdr[j].lock = 1;
5039             spin_unlock_irqrestore(&ha->smp_lock, flags);
5040             gdth_wait_completion(ldrv.ionode, ha->bus_cnt, j);
5041             gdth_stop_timeout(ldrv.ionode, ha->bus_cnt, j);
5042         } else {
5043             spin_lock_irqsave(&ha->smp_lock, flags);
5044             ha->hdr[j].lock = 0;
5045             spin_unlock_irqrestore(&ha->smp_lock, flags);
5046             gdth_start_timeout(ldrv.ionode, ha->bus_cnt, j);
5047             gdth_next(ldrv.ionode);
5048         }
5049     }
5050     return 0;
5051 }
5052
5053 static int ioc_resetdrv(void __user *arg, char *cmnd)
5054 {
5055     gdth_ioctl_reset res;
5056     gdth_cmd_str cmd;
5057     int hanum;
5058     gdth_ha_str *ha;
5059     int rval;
5060
5061     if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
5062         res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
5063         return -EFAULT;
5064     hanum = res.ionode;
5065     ha = HADATA(gdth_ctr_tab[hanum]);
5066
5067     if (!ha->hdr[res.number].present)
5068         return 0;
5069     memset(&cmd, 0, sizeof(gdth_cmd_str));
5070     cmd.Service = CACHESERVICE;
5071     cmd.OpCode = GDT_CLUST_RESET;
5072     if (ha->cache_feat & GDT_64BIT)
5073         cmd.u.cache64.DeviceNo = res.number;
5074     else
5075         cmd.u.cache.DeviceNo = res.number;
5076
5077     rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
5078     if (rval < 0)
5079         return rval;
5080     res.status = rval;
5081
5082     if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
5083         return -EFAULT;
5084     return 0;
5085 }
5086
5087 static int ioc_general(void __user *arg, char *cmnd)
5088 {
5089     gdth_ioctl_general gen;
5090     char *buf = NULL;
5091     ulong64 paddr;
5092     int hanum;
5093     gdth_ha_str *ha;
5094     int rval;
5095
5096     if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
5097         gen.ionode >= gdth_ctr_count)
5098         return -EFAULT;
5099     hanum = gen.ionode;
5100     ha = HADATA(gdth_ctr_tab[hanum]);
5101     if (gen.data_len + gen.sense_len != 0) {
5102         if (!(buf = gdth_ioctl_alloc(hanum, gen.data_len + gen.sense_len,
5103                                      FALSE, &paddr)))
5104             return -EFAULT;
5105         if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
5106                            gen.data_len + gen.sense_len)) {
5107             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5108             return -EFAULT;
5109         }
5110
5111         if (gen.command.OpCode == GDT_IOCTL) {
5112             gen.command.u.ioctl.p_param = paddr;
5113         } else if (gen.command.Service == CACHESERVICE) {
5114             if (ha->cache_feat & GDT_64BIT) {
5115                 /* copy elements from 32-bit IOCTL structure */
5116                 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
5117                 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
5118                 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
5119                 /* addresses */
5120                 if (ha->cache_feat & SCATTER_GATHER) {
5121                     gen.command.u.cache64.DestAddr = (ulong64)-1;
5122                     gen.command.u.cache64.sg_canz = 1;
5123                     gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
5124                     gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
5125                     gen.command.u.cache64.sg_lst[1].sg_len = 0;
5126                 } else {
5127                     gen.command.u.cache64.DestAddr = paddr;
5128                     gen.command.u.cache64.sg_canz = 0;
5129                 }
5130             } else {
5131                 if (ha->cache_feat & SCATTER_GATHER) {
5132                     gen.command.u.cache.DestAddr = 0xffffffff;
5133                     gen.command.u.cache.sg_canz = 1;
5134                     gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
5135                     gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
5136                     gen.command.u.cache.sg_lst[1].sg_len = 0;
5137                 } else {
5138                     gen.command.u.cache.DestAddr = paddr;
5139                     gen.command.u.cache.sg_canz = 0;
5140                 }
5141             }
5142         } else if (gen.command.Service == SCSIRAWSERVICE) {
5143             if (ha->raw_feat & GDT_64BIT) {
5144                 /* copy elements from 32-bit IOCTL structure */
5145                 char cmd[16];
5146                 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
5147                 gen.command.u.raw64.bus = gen.command.u.raw.bus;
5148                 gen.command.u.raw64.lun = gen.command.u.raw.lun;
5149                 gen.command.u.raw64.target = gen.command.u.raw.target;
5150                 memcpy(cmd, gen.command.u.raw.cmd, 16);
5151                 memcpy(gen.command.u.raw64.cmd, cmd, 16);
5152                 gen.command.u.raw64.clen = gen.command.u.raw.clen;
5153                 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
5154                 gen.command.u.raw64.direction = gen.command.u.raw.direction;
5155                 /* addresses */
5156                 if (ha->raw_feat & SCATTER_GATHER) {
5157                     gen.command.u.raw64.sdata = (ulong64)-1;
5158                     gen.command.u.raw64.sg_ranz = 1;
5159                     gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
5160                     gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
5161                     gen.command.u.raw64.sg_lst[1].sg_len = 0;
5162                 } else {
5163                     gen.command.u.raw64.sdata = paddr;
5164                     gen.command.u.raw64.sg_ranz = 0;
5165                 }
5166                 gen.command.u.raw64.sense_data = paddr + gen.data_len;
5167             } else {
5168                 if (ha->raw_feat & SCATTER_GATHER) {
5169                     gen.command.u.raw.sdata = 0xffffffff;
5170                     gen.command.u.raw.sg_ranz = 1;
5171                     gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
5172                     gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
5173                     gen.command.u.raw.sg_lst[1].sg_len = 0;
5174                 } else {
5175                     gen.command.u.raw.sdata = paddr;
5176                     gen.command.u.raw.sg_ranz = 0;
5177                 }
5178                 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
5179             }
5180         } else {
5181             gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5182             return -EFAULT;
5183         }
5184     }
5185
5186     rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
5187     if (rval < 0)
5188         return rval;
5189     gen.status = rval;
5190
5191     if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
5192                      gen.data_len + gen.sense_len)) {
5193         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5194         return -EFAULT;
5195     }
5196     if (copy_to_user(arg, &gen,
5197         sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
5198         gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5199         return -EFAULT;
5200     }
5201     gdth_ioctl_free(hanum, gen.data_len+gen.sense_len, buf, paddr);
5202     return 0;
5203 }
5204
5205 static int ioc_hdrlist(void __user *arg, char *cmnd)
5206 {
5207     gdth_ioctl_rescan *rsc;
5208     gdth_cmd_str *cmd;
5209     gdth_ha_str *ha;
5210     unchar i;
5211     int hanum, rc = -ENOMEM;
5212     u32 cluster_type = 0;
5213
5214     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5215     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5216     if (!rsc || !cmd)
5217         goto free_fail;
5218
5219     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5220         rsc->ionode >= gdth_ctr_count) {
5221         rc = -EFAULT;
5222         goto free_fail;
5223     }
5224     hanum = rsc->ionode;
5225     ha = HADATA(gdth_ctr_tab[hanum]);
5226     memset(cmd, 0, sizeof(gdth_cmd_str));
5227
5228     for (i = 0; i < MAX_HDRIVES; ++i) {
5229         if (!ha->hdr[i].present) {
5230             rsc->hdr_list[i].bus = 0xff;
5231             continue;
5232         }
5233         rsc->hdr_list[i].bus = ha->virt_bus;
5234         rsc->hdr_list[i].target = i;
5235         rsc->hdr_list[i].lun = 0;
5236         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5237         if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
5238             cmd->Service = CACHESERVICE;
5239             cmd->OpCode = GDT_CLUST_INFO;
5240             if (ha->cache_feat & GDT_64BIT)
5241                 cmd->u.cache64.DeviceNo = i;
5242             else
5243                 cmd->u.cache.DeviceNo = i;
5244             if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
5245                 rsc->hdr_list[i].cluster_type = cluster_type;
5246         }
5247     }
5248
5249     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5250         rc = -EFAULT;
5251     else
5252         rc = 0;
5253
5254 free_fail:
5255     kfree(rsc);
5256     kfree(cmd);
5257     return rc;
5258 }
5259
5260 static int ioc_rescan(void __user *arg, char *cmnd)
5261 {
5262     gdth_ioctl_rescan *rsc;
5263     gdth_cmd_str *cmd;
5264     ushort i, status, hdr_cnt;
5265     ulong32 info;
5266     int hanum, cyls, hds, secs;
5267     int rc = -ENOMEM;
5268     ulong flags;
5269     gdth_ha_str *ha;
5270
5271     rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
5272     cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
5273     if (!cmd || !rsc)
5274         goto free_fail;
5275
5276     if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
5277         rsc->ionode >= gdth_ctr_count) {
5278         rc = -EFAULT;
5279         goto free_fail;
5280     }
5281     hanum = rsc->ionode;
5282     ha = HADATA(gdth_ctr_tab[hanum]);
5283     memset(cmd, 0, sizeof(gdth_cmd_str));
5284
5285     if (rsc->flag == 0) {
5286         /* old method: re-init. cache service */
5287         cmd->Service = CACHESERVICE;
5288         if (ha->cache_feat & GDT_64BIT) {
5289             cmd->OpCode = GDT_X_INIT_HOST;
5290             cmd->u.cache64.DeviceNo = LINUX_OS;
5291         } else {
5292             cmd->OpCode = GDT_INIT;
5293             cmd->u.cache.DeviceNo = LINUX_OS;
5294         }
5295
5296         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5297         i = 0;
5298         hdr_cnt = (status == S_OK ? (ushort)info : 0);
5299     } else {
5300         i = rsc->hdr_no;
5301         hdr_cnt = i + 1;
5302     }
5303
5304     for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
5305         cmd->Service = CACHESERVICE;
5306         cmd->OpCode = GDT_INFO;
5307         if (ha->cache_feat & GDT_64BIT)
5308             cmd->u.cache64.DeviceNo = i;
5309         else
5310             cmd->u.cache.DeviceNo = i;
5311
5312         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5313
5314         spin_lock_irqsave(&ha->smp_lock, flags);
5315         rsc->hdr_list[i].bus = ha->virt_bus;
5316         rsc->hdr_list[i].target = i;
5317         rsc->hdr_list[i].lun = 0;
5318         if (status != S_OK) {
5319             ha->hdr[i].present = FALSE;
5320         } else {
5321             ha->hdr[i].present = TRUE;
5322             ha->hdr[i].size = info;
5323             /* evaluate mapping */
5324             ha->hdr[i].size &= ~SECS32;
5325             gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
5326             ha->hdr[i].heads = hds;
5327             ha->hdr[i].secs = secs;
5328             /* round size */
5329             ha->hdr[i].size = cyls * hds * secs;
5330         }
5331         spin_unlock_irqrestore(&ha->smp_lock, flags);
5332         if (status != S_OK)
5333             continue;
5334
5335         /* extended info, if GDT_64BIT, for drives > 2 TB */
5336         /* but we need ha->info2, not yet stored in scp->SCp */
5337
5338         /* devtype, cluster info, R/W attribs */
5339         cmd->Service = CACHESERVICE;
5340         cmd->OpCode = GDT_DEVTYPE;
5341         if (ha->cache_feat & GDT_64BIT)
5342             cmd->u.cache64.DeviceNo = i;
5343         else
5344             cmd->u.cache.DeviceNo = i;
5345
5346         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5347
5348         spin_lock_irqsave(&ha->smp_lock, flags);
5349         ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
5350         spin_unlock_irqrestore(&ha->smp_lock, flags);
5351
5352         cmd->Service = CACHESERVICE;
5353         cmd->OpCode = GDT_CLUST_INFO;
5354         if (ha->cache_feat & GDT_64BIT)
5355             cmd->u.cache64.DeviceNo = i;
5356         else
5357             cmd->u.cache.DeviceNo = i;
5358
5359         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5360
5361         spin_lock_irqsave(&ha->smp_lock, flags);
5362         ha->hdr[i].cluster_type =
5363             ((status == S_OK && !shared_access) ? (ushort)info : 0);
5364         spin_unlock_irqrestore(&ha->smp_lock, flags);
5365         rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
5366
5367         cmd->Service = CACHESERVICE;
5368         cmd->OpCode = GDT_RW_ATTRIBS;
5369         if (ha->cache_feat & GDT_64BIT)
5370             cmd->u.cache64.DeviceNo = i;
5371         else
5372             cmd->u.cache.DeviceNo = i;
5373
5374         status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
5375
5376         spin_lock_irqsave(&ha->smp_lock, flags);
5377         ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
5378         spin_unlock_irqrestore(&ha->smp_lock, flags);
5379     }
5380
5381     if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
5382         rc = -EFAULT;
5383     else
5384         rc = 0;
5385
5386 free_fail:
5387     kfree(rsc);
5388     kfree(cmd);
5389     return rc;
5390 }
5391
5392 static int gdth_ioctl(struct inode *inode, struct file *filep,
5393                       unsigned int cmd, unsigned long arg)
5394 {
5395     gdth_ha_str *ha;
5396     Scsi_Cmnd *scp;
5397     ulong flags;
5398     char cmnd[MAX_COMMAND_SIZE];
5399     void __user *argp = (void __user *)arg;
5400
5401     memset(cmnd, 0xff, 12);
5402
5403     TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
5404
5405     switch (cmd) {
5406       case GDTIOCTL_CTRCNT:
5407       {
5408         int cnt = gdth_ctr_count;
5409         if (put_user(cnt, (int __user *)argp))
5410                 return -EFAULT;
5411         break;
5412       }
5413
5414       case GDTIOCTL_DRVERS:
5415       {
5416         int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
5417         if (put_user(ver, (int __user *)argp))
5418                 return -EFAULT;
5419         break;
5420       }
5421
5422       case GDTIOCTL_OSVERS:
5423       {
5424         gdth_ioctl_osvers osv;
5425
5426         osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
5427         osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
5428         osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
5429         if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
5430                 return -EFAULT;
5431         break;
5432       }
5433
5434       case GDTIOCTL_CTRTYPE:
5435       {
5436         gdth_ioctl_ctrtype ctrt;
5437
5438         if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
5439             ctrt.ionode >= gdth_ctr_count)
5440             return -EFAULT;
5441         ha = HADATA(gdth_ctr_tab[ctrt.ionode]);
5442         if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
5443             ctrt.type = (unchar)((ha->stype>>20) - 0x10);
5444         } else {
5445             if (ha->type != GDT_PCIMPR) {
5446                 ctrt.type = (unchar)((ha->stype<<4) + 6);
5447             } else {
5448                 ctrt.type =
5449                     (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
5450                 if (ha->stype >= 0x300)
5451                     ctrt.ext_type = 0x6000 | ha->subdevice_id;
5452                 else
5453                     ctrt.ext_type = 0x6000 | ha->stype;
5454             }
5455             ctrt.device_id = ha->stype;
5456             ctrt.sub_device_id = ha->subdevice_id;
5457         }
5458         ctrt.info = ha->brd_phys;
5459         ctrt.oem_id = ha->oem_id;
5460         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
5461             return -EFAULT;
5462         break;
5463       }
5464
5465       case GDTIOCTL_GENERAL:
5466         return ioc_general(argp, cmnd);
5467
5468       case GDTIOCTL_EVENT:
5469         return ioc_event(argp);
5470
5471       case GDTIOCTL_LOCKDRV:
5472         return ioc_lockdrv(argp);
5473
5474       case GDTIOCTL_LOCKCHN:
5475       {
5476         gdth_ioctl_lockchn lchn;
5477         unchar i, j;
5478
5479         if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
5480             lchn.ionode >= gdth_ctr_count)
5481             return -EFAULT;
5482         ha = HADATA(gdth_ctr_tab[lchn.ionode]);
5483
5484         i = lchn.channel;
5485         if (i < ha->bus_cnt) {
5486             if (lchn.lock) {
5487                 spin_lock_irqsave(&ha->smp_lock, flags);
5488                 ha->raw[i].lock = 1;
5489                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5490                 for (j = 0; j < ha->tid_cnt; ++j) {
5491                     gdth_wait_completion(lchn.ionode, i, j);
5492                     gdth_stop_timeout(lchn.ionode, i, j);
5493                 }
5494             } else {
5495                 spin_lock_irqsave(&ha->smp_lock, flags);
5496                 ha->raw[i].lock = 0;
5497                 spin_unlock_irqrestore(&ha->smp_lock, flags);
5498                 for (j = 0; j < ha->tid_cnt; ++j) {
5499                     gdth_start_timeout(lchn.ionode, i, j);
5500                     gdth_next(lchn.ionode);
5501                 }
5502             }
5503         }
5504         break;
5505       }
5506
5507       case GDTIOCTL_RESCAN:
5508         return ioc_rescan(argp, cmnd);
5509
5510       case GDTIOCTL_HDRLIST:
5511         return ioc_hdrlist(argp, cmnd);
5512
5513       case GDTIOCTL_RESET_BUS:
5514       {
5515         gdth_ioctl_reset res;
5516         int hanum, rval;
5517
5518         if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
5519             res.ionode >= gdth_ctr_count)
5520             return -EFAULT;
5521         hanum = res.ionode;
5522         ha = HADATA(gdth_ctr_tab[hanum]);
5523
5524 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5525         scp  = kmalloc(sizeof(*scp), GFP_KERNEL);
5526         if (!scp)
5527             return -ENOMEM;
5528         memset(scp, 0, sizeof(*scp));
5529         scp->device = ha->sdev;
5530         scp->cmd_len = 12;
5531         scp->use_sg = 0;
5532         scp->device->channel = virt_ctr ? 0 : res.number;
5533         rval = gdth_eh_bus_reset(scp);
5534         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5535         kfree(scp);
5536 #else
5537         scp  = scsi_allocate_device(ha->sdev, 1, FALSE);
5538         if (!scp)
5539             return -ENOMEM;
5540         scp->cmd_len = 12;
5541         scp->use_sg = 0;
5542         scp->channel = virt_ctr ? 0 : res.number;
5543         rval = gdth_eh_bus_reset(scp);
5544         res.status = (rval == SUCCESS ? S_OK : S_GENERR);
5545         scsi_release_command(scp);
5546 #endif
5547         if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
5548             return -EFAULT;
5549         break;
5550       }
5551
5552       case GDTIOCTL_RESET_DRV:
5553         return ioc_resetdrv(argp, cmnd);
5554
5555       default:
5556         break;
5557     }
5558     return 0;
5559 }
5560
5561
5562 /* flush routine */
5563 static void gdth_flush(int hanum)
5564 {
5565     int             i;
5566     gdth_ha_str     *ha;
5567     gdth_cmd_str    gdtcmd;
5568     char            cmnd[MAX_COMMAND_SIZE];
5569     memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5570
5571     TRACE2(("gdth_flush() hanum %d\n",hanum));
5572     ha = HADATA(gdth_ctr_tab[hanum]);
5573
5574     for (i = 0; i < MAX_HDRIVES; ++i) {
5575         if (ha->hdr[i].present) {
5576             gdtcmd.BoardNode = LOCALBOARD;
5577             gdtcmd.Service = CACHESERVICE;
5578             gdtcmd.OpCode = GDT_FLUSH;
5579             if (ha->cache_feat & GDT_64BIT) {
5580                 gdtcmd.u.cache64.DeviceNo = i;
5581                 gdtcmd.u.cache64.BlockNo = 1;
5582                 gdtcmd.u.cache64.sg_canz = 0;
5583             } else {
5584                 gdtcmd.u.cache.DeviceNo = i;
5585                 gdtcmd.u.cache.BlockNo = 1;
5586                 gdtcmd.u.cache.sg_canz = 0;
5587             }
5588             TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
5589
5590             gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 30, NULL);
5591         }
5592     }
5593 }
5594
5595 /* shutdown routine */
5596 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
5597 {
5598     int             hanum;
5599 #ifndef __alpha__
5600     gdth_cmd_str    gdtcmd;
5601     char            cmnd[MAX_COMMAND_SIZE];
5602 #endif
5603
5604     if (notifier_disabled)
5605         return NOTIFY_OK;
5606
5607     TRACE2(("gdth_halt() event %d\n",(int)event));
5608     if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5609         return NOTIFY_DONE;
5610
5611     notifier_disabled = 1;
5612     printk("GDT-HA: Flushing all host drives .. ");
5613     for (hanum = 0; hanum < gdth_ctr_count; ++hanum) {
5614         gdth_flush(hanum);
5615
5616 #ifndef __alpha__
5617         /* controller reset */
5618         memset(cmnd, 0xff, MAX_COMMAND_SIZE);
5619         gdtcmd.BoardNode = LOCALBOARD;
5620         gdtcmd.Service = CACHESERVICE;
5621         gdtcmd.OpCode = GDT_RESET;
5622         TRACE2(("gdth_halt(): reset controller %d\n", hanum));
5623         gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 10, NULL);
5624 #endif
5625     }
5626     printk("Done.\n");
5627
5628 #ifdef GDTH_STATISTICS
5629     del_timer(&gdth_timer);
5630 #endif
5631     return NOTIFY_OK;
5632 }
5633
5634 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5635 /* configure lun */
5636 static int gdth_slave_configure(struct scsi_device *sdev)
5637 {
5638     scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
5639     sdev->skip_ms_page_3f = 1;
5640     sdev->skip_ms_page_8 = 1;
5641     return 0;
5642 }
5643 #endif
5644
5645 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5646 static struct scsi_host_template driver_template = {
5647 #else
5648 static Scsi_Host_Template driver_template = {
5649 #endif
5650         .proc_name              = "gdth",
5651         .proc_info              = gdth_proc_info,
5652         .name                   = "GDT SCSI Disk Array Controller",
5653         .detect                 = gdth_detect,
5654         .release                = gdth_release,
5655         .info                   = gdth_info,
5656         .queuecommand           = gdth_queuecommand,
5657         .eh_bus_reset_handler   = gdth_eh_bus_reset,
5658         .bios_param             = gdth_bios_param,
5659         .can_queue              = GDTH_MAXCMDS,
5660 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
5661         .slave_configure        = gdth_slave_configure,
5662 #endif
5663         .this_id                = -1,
5664         .sg_tablesize           = GDTH_MAXSG,
5665         .cmd_per_lun            = GDTH_MAXC_P_L,
5666         .unchecked_isa_dma      = 1,
5667         .use_clustering         = ENABLE_CLUSTERING,
5668 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
5669         .use_new_eh_code        = 1,
5670 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
5671         .highmem_io             = 1,
5672 #endif
5673 #endif
5674 };
5675
5676 #include "scsi_module.c"
5677 #ifndef MODULE
5678 __setup("gdth=", option_setup);
5679 #endif