2 * u14-34f.c - Low-level driver for UltraStor 14F/34F SCSI host adapters.
4 * 03 Jun 2003 Rev. 8.10 for linux-2.5.70
5 * + Update for new IRQ API.
6 * + Use "goto" when appropriate.
8 * + Update for new module_param API.
9 * + Module parameters can now be specified only in the
10 * same format as the kernel boot options.
12 * boot option old module param
13 * ----------- ------------------
14 * addr,... io_port=addr,...
15 * lc:[y|n] linked_comm=[1|0]
16 * mq:xx max_queue_depth=xx
17 * tm:[0|1|2] tag_mode=[0|1|2]
18 * et:[y|n] ext_tran=[1|0]
19 * of:[y|n] have_old_firmware=[1|0]
21 * A valid example using the new parameter format is:
22 * modprobe u14-34f "u14-34f=0x340,0x330,lc:y,tm:0,mq:4"
24 * which is equivalent to the old format:
25 * modprobe u14-34f io_port=0x340,0x330 linked_comm=1 tag_mode=0 \
28 * With actual module code, u14-34f and u14_34f are equivalent
29 * as module parameter names.
31 * 12 Feb 2003 Rev. 8.04 for linux 2.5.60
32 * + Release irq before calling scsi_register.
34 * 12 Nov 2002 Rev. 8.02 for linux 2.5.47
35 * + Release driver_lock before calling scsi_register.
37 * 11 Nov 2002 Rev. 8.01 for linux 2.5.47
38 * + Fixed bios_param and scsicam_bios_param calling parameters.
40 * 28 Oct 2002 Rev. 8.00 for linux 2.5.44-ac4
41 * + Use new tcq and adjust_queue_depth api.
42 * + New command line option (tm:[0-2]) to choose the type of tags:
43 * 0 -> disable tagging ; 1 -> simple tags ; 2 -> ordered tags.
44 * Default is tm:0 (tagged commands disabled).
45 * For compatibility the "tc:" option is an alias of the "tm:"
46 * option; tc:n is equivalent to tm:0 and tc:y is equivalent to
49 * 10 Oct 2002 Rev. 7.70 for linux 2.5.42
50 * + Foreport from revision 6.70.
52 * 25 Jun 2002 Rev. 6.70 for linux 2.4.19
53 * + Fixed endian-ness problem due to bitfields.
55 * 21 Feb 2002 Rev. 6.52 for linux 2.4.18
56 * + Backport from rev. 7.22 (use io_request_lock).
58 * 20 Feb 2002 Rev. 7.22 for linux 2.5.5
59 * + Remove any reference to virt_to_bus().
60 * + Fix pio hang while detecting multiple HBAs.
62 * 01 Jan 2002 Rev. 7.20 for linux 2.5.1
63 * + Use the dynamic DMA mapping API.
65 * 19 Dec 2001 Rev. 7.02 for linux 2.5.1
66 * + Use SCpnt->sc_data_direction if set.
67 * + Use sglist.page instead of sglist.address.
69 * 11 Dec 2001 Rev. 7.00 for linux 2.5.1
70 * + Use host->host_lock instead of io_request_lock.
72 * 1 May 2001 Rev. 6.05 for linux 2.4.4
73 * + Fix data transfer direction for opcode SEND_CUE_SHEET (0x5d)
75 * 25 Jan 2001 Rev. 6.03 for linux 2.4.0
76 * + "check_region" call replaced by "request_region".
78 * 22 Nov 2000 Rev. 6.02 for linux 2.4.0-test11
79 * + Removed old scsi error handling support.
80 * + The obsolete boot option flag eh:n is silently ignored.
81 * + Removed error messages while a disk drive is powered up at
83 * + Improved boot messages: all tagged capable device are
84 * indicated as "tagged".
86 * 16 Sep 1999 Rev. 5.11 for linux 2.2.12 and 2.3.18
87 * + Updated to the new __setup interface for boot command line options.
88 * + When loaded as a module, accepts the new parameter boot_options
89 * which value is a string with the same format of the kernel boot
90 * command line options. A valid example is:
91 * modprobe u14-34f 'boot_options="0x230,0x340,lc:y,mq:4"'
93 * 22 Jul 1999 Rev. 5.00 for linux 2.2.10 and 2.3.11
94 * + Removed pre-2.2 source code compatibility.
96 * 26 Jul 1998 Rev. 4.33 for linux 2.0.35 and 2.1.111
97 * Added command line option (et:[y|n]) to use the existing
98 * translation (returned by scsicam_bios_param) as disk geometry.
99 * The default is et:n, which uses the disk geometry jumpered
101 * The default value et:n is compatible with all previous revisions
104 * 28 May 1998 Rev. 4.32 for linux 2.0.33 and 2.1.104
105 * Increased busy timeout from 10 msec. to 200 msec. while
106 * processing interrupts.
108 * 18 May 1998 Rev. 4.31 for linux 2.0.33 and 2.1.102
109 * Improved abort handling during the eh recovery process.
111 * 13 May 1998 Rev. 4.30 for linux 2.0.33 and 2.1.101
112 * The driver is now fully SMP safe, including the
113 * abort and reset routines.
114 * Added command line options (eh:[y|n]) to choose between
115 * new_eh_code and the old scsi code.
116 * If linux version >= 2.1.101 the default is eh:y, while the eh
117 * option is ignored for previous releases and the old scsi code
120 * 18 Apr 1998 Rev. 4.20 for linux 2.0.33 and 2.1.97
121 * Reworked interrupt handler.
123 * 11 Apr 1998 rev. 4.05 for linux 2.0.33 and 2.1.95
124 * Major reliability improvement: when a batch with overlapping
125 * requests is detected, requests are queued one at a time
126 * eliminating any possible board or drive reordering.
128 * 10 Apr 1998 rev. 4.04 for linux 2.0.33 and 2.1.95
129 * Improved SMP support (if linux version >= 2.1.95).
131 * 9 Apr 1998 rev. 4.03 for linux 2.0.33 and 2.1.94
132 * Performance improvement: when sequential i/o is detected,
133 * always use direct sort instead of reverse sort.
135 * 4 Apr 1998 rev. 4.02 for linux 2.0.33 and 2.1.92
136 * io_port is now unsigned long.
138 * 17 Mar 1998 rev. 4.01 for linux 2.0.33 and 2.1.88
139 * Use new scsi error handling code (if linux version >= 2.1.88).
140 * Use new interrupt code.
142 * 12 Sep 1997 rev. 3.11 for linux 2.0.30 and 2.1.55
143 * Use of udelay inside the wait loops to avoid timeout
144 * problems with fast cpus.
145 * Removed check about useless calls to the interrupt service
146 * routine (reported on SMP systems only).
147 * At initialization time "sorted/unsorted" is displayed instead
148 * of "linked/unlinked" to reinforce the fact that "linking" is
149 * nothing but "elevator sorting" in the actual implementation.
151 * 17 May 1997 rev. 3.10 for linux 2.0.30 and 2.1.38
152 * Use of serial_number_at_timeout in abort and reset processing.
153 * Use of the __initfunc and __initdata macro in setup code.
154 * Minor cleanups in the list_statistics code.
156 * 24 Feb 1997 rev. 3.00 for linux 2.0.29 and 2.1.26
157 * When loading as a module, parameter passing is now supported
158 * both in 2.0 and in 2.1 style.
159 * Fixed data transfer direction for some SCSI opcodes.
160 * Immediate acknowledge to request sense commands.
161 * Linked commands to each disk device are now reordered by elevator
162 * sorting. Rare cases in which reordering of write requests could
163 * cause wrong results are managed.
165 * 18 Jan 1997 rev. 2.60 for linux 2.1.21 and 2.0.28
166 * Added command line options to enable/disable linked commands
167 * (lc:[y|n]), old firmware support (of:[y|n]) and to set the max
168 * queue depth (mq:xx). Default is "u14-34f=lc:n,of:n,mq:8".
169 * Improved command linking.
171 * 8 Jan 1997 rev. 2.50 for linux 2.1.20 and 2.0.27
172 * Added linked command support.
174 * 3 Dec 1996 rev. 2.40 for linux 2.1.14 and 2.0.27
175 * Added queue depth adjustment.
177 * 22 Nov 1996 rev. 2.30 for linux 2.1.12 and 2.0.26
178 * The list of i/o ports to be probed can be overwritten by the
179 * "u14-34f=port0,port1,...." boot command line option.
180 * Scatter/gather lists are now allocated by a number of kmalloc
181 * calls, in order to avoid the previous size limit of 64Kb.
183 * 16 Nov 1996 rev. 2.20 for linux 2.1.10 and 2.0.25
184 * Added multichannel support.
186 * 27 Sep 1996 rev. 2.12 for linux 2.1.0
187 * Portability cleanups (virtual/bus addressing, little/big endian
190 * 09 Jul 1996 rev. 2.11 for linux 2.0.4
191 * "Data over/under-run" no longer implies a redo on all targets.
192 * Number of internal retries is now limited.
194 * 16 Apr 1996 rev. 2.10 for linux 1.3.90
195 * New argument "reset_flags" to the reset routine.
197 * 21 Jul 1995 rev. 2.02 for linux 1.3.11
198 * Fixed Data Transfer Direction for some SCSI commands.
200 * 13 Jun 1995 rev. 2.01 for linux 1.2.10
201 * HAVE_OLD_UX4F_FIRMWARE should be defined for U34F boards when
202 * the firmware prom is not the latest one (28008-006).
204 * 11 Mar 1995 rev. 2.00 for linux 1.2.0
205 * Fixed a bug which prevented media change detection for removable
208 * 23 Feb 1995 rev. 1.18 for linux 1.1.94
209 * Added a check for scsi_register returning NULL.
211 * 11 Feb 1995 rev. 1.17 for linux 1.1.91
212 * U14F qualified to run with 32 sglists.
213 * Now DEBUG_RESET is disabled by default.
215 * 9 Feb 1995 rev. 1.16 for linux 1.1.90
216 * Use host->wish_block instead of host->block.
218 * 8 Feb 1995 rev. 1.15 for linux 1.1.89
219 * Cleared target_time_out counter while performing a reset.
221 * 28 Jan 1995 rev. 1.14 for linux 1.1.86
222 * Added module support.
223 * Log and do a retry when a disk drive returns a target status
224 * different from zero on a recovered error.
225 * Auto detects if U14F boards have an old firmware revision.
226 * Max number of scatter/gather lists set to 16 for all boards
227 * (most installation run fine using 33 sglists, while other
228 * has problems when using more than 16).
230 * 16 Jan 1995 rev. 1.13 for linux 1.1.81
231 * Display a message if check_region detects a port address
234 * 15 Dec 1994 rev. 1.12 for linux 1.1.74
235 * The host->block flag is set for all the detected ISA boards.
237 * 30 Nov 1994 rev. 1.11 for linux 1.1.68
238 * Redo i/o on target status CHECK_CONDITION for TYPE_DISK only.
239 * Added optional support for using a single board at a time.
241 * 14 Nov 1994 rev. 1.10 for linux 1.1.63
243 * 28 Oct 1994 rev. 1.09 for linux 1.1.58 Final BETA release.
244 * 16 Jul 1994 rev. 1.00 for linux 1.1.29 Initial ALPHA release.
246 * This driver is a total replacement of the original UltraStor
247 * scsi driver, but it supports ONLY the 14F and 34F boards.
248 * It can be configured in the same kernel in which the original
249 * ultrastor driver is configured to allow the original U24F
252 * Multiple U14F and/or U34F host adapters are supported.
254 * Copyright (C) 1994-2003 Dario Ballabio (ballabio_dario@emc.com)
256 * Alternate email: dario.ballabio@inwind.it, dario.ballabio@tiscalinet.it
258 * Redistribution and use in source and binary forms, with or without
259 * modification, are permitted provided that redistributions of source
260 * code retain the above copyright notice and this comment without
263 * WARNING: if your 14/34F board has an old firmware revision (see below)
264 * you must change "#undef" into "#define" in the following
267 #undef HAVE_OLD_UX4F_FIRMWARE
269 #include <linux/string.h>
270 #include <linux/kernel.h>
271 #include <linux/ioport.h>
272 #include <linux/delay.h>
274 #include <asm/system.h>
275 #include <asm/byteorder.h>
276 #include <linux/proc_fs.h>
277 #include <linux/blkdev.h>
278 #include <linux/interrupt.h>
279 #include <linux/stat.h>
280 #include <linux/pci.h>
281 #include <linux/init.h>
282 #include <linux/ctype.h>
283 #include <linux/spinlock.h>
284 #include <linux/slab.h>
288 #include <scsi/scsi.h>
289 #include <scsi/scsi_cmnd.h>
290 #include <scsi/scsi_device.h>
291 #include <scsi/scsi_host.h>
292 #include <scsi/scsi_tcq.h>
293 #include <scsi/scsicam.h>
295 static int u14_34f_detect(struct scsi_host_template
*);
296 static int u14_34f_release(struct Scsi_Host
*);
297 static int u14_34f_queuecommand(struct scsi_cmnd
*, void (*done
)(struct scsi_cmnd
*));
298 static int u14_34f_eh_abort(struct scsi_cmnd
*);
299 static int u14_34f_eh_host_reset(struct scsi_cmnd
*);
300 static int u14_34f_bios_param(struct scsi_device
*, struct block_device
*,
302 static int u14_34f_slave_configure(struct scsi_device
*);
304 static struct scsi_host_template driver_template
= {
305 .name
= "UltraStor 14F/34F rev. 8.10.00 ",
306 .detect
= u14_34f_detect
,
307 .release
= u14_34f_release
,
308 .queuecommand
= u14_34f_queuecommand
,
309 .eh_abort_handler
= u14_34f_eh_abort
,
310 .eh_host_reset_handler
= u14_34f_eh_host_reset
,
311 .bios_param
= u14_34f_bios_param
,
312 .slave_configure
= u14_34f_slave_configure
,
314 .unchecked_isa_dma
= 1,
315 .use_clustering
= ENABLE_CLUSTERING
,
318 #if !defined(__BIG_ENDIAN_BITFIELD) && !defined(__LITTLE_ENDIAN_BITFIELD)
319 #error "Adjust your <asm/byteorder.h> defines"
322 /* Values for the PRODUCT_ID ports for the 14/34F */
323 #define PRODUCT_ID1 0x56
324 #define PRODUCT_ID2 0x40 /* NOTE: Only upper nibble is used */
326 /* Subversion values */
330 #define OP_HOST_ADAPTER 0x1
337 #define HA_CMD_INQUIRY 0x1
338 #define HA_CMD_SELF_DIAG 0x2
339 #define HA_CMD_READ_BUFF 0x3
340 #define HA_CMD_WRITE_BUFF 0x4
342 #undef DEBUG_LINKED_COMMANDS
344 #undef DEBUG_INTERRUPT
346 #undef DEBUG_GENERATE_ERRORS
347 #undef DEBUG_GENERATE_ABORTS
348 #undef DEBUG_GEOMETRY
354 #define MAX_BOARDS (MAX_ISA + MAX_VESA + MAX_EISA + MAX_PCI)
355 #define MAX_CHANNEL 1
358 #define MAX_MAILBOXES 16
359 #define MAX_SGLIST 32
360 #define MAX_SAFE_SGLIST 16
361 #define MAX_INTERNAL_RETRIES 64
362 #define MAX_CMD_PER_LUN 2
363 #define MAX_TAGGED_CMD_PER_LUN (MAX_MAILBOXES - MAX_CMD_PER_LUN)
365 #define SKIP ULONG_MAX
376 #define MAXLOOP 10000
377 #define TAG_DISABLED 0
379 #define TAG_ORDERED 2
381 #define REG_LCL_MASK 0
382 #define REG_LCL_INTR 1
383 #define REG_SYS_MASK 2
384 #define REG_SYS_INTR 3
385 #define REG_PRODUCT_ID1 4
386 #define REG_PRODUCT_ID2 5
387 #define REG_CONFIG1 6
388 #define REG_CONFIG2 7
391 #define REGION_SIZE 13UL
392 #define BSY_ASSERTED 0x01
393 #define IRQ_ASSERTED 0x01
394 #define CMD_RESET 0xc0
395 #define CMD_OGM_INTR 0x01
396 #define CMD_CLR_INTR 0x01
397 #define CMD_ENA_INTR 0x81
401 #define YESNO(a) ((a) ? 'y' : 'n')
402 #define TLDEV(type) ((type) == TYPE_DISK || (type) == TYPE_ROM)
404 #define PACKED __attribute__((packed))
407 unsigned int address
; /* Segment Address */
408 unsigned int num_bytes
; /* Segment Length */
411 /* MailBox SCSI Command Packet */
414 #if defined(__BIG_ENDIAN_BITFIELD)
415 unsigned char sg
:1, ca
:1, dcn
:1, xdir
:2, opcode
:3;
416 unsigned char lun
: 3, channel
:2, target
:3;
418 unsigned char opcode
: 3, /* type of command */
419 xdir
: 2, /* data transfer direction */
420 dcn
: 1, /* disable disconnect */
421 ca
: 1, /* use cache (if available) */
422 sg
: 1; /* scatter/gather operation */
423 unsigned char target
: 3, /* SCSI target id */
424 channel
: 2, /* SCSI channel number */
425 lun
: 3; /* SCSI logical unit number */
428 unsigned int data_address PACKED
; /* transfer data pointer */
429 unsigned int data_len PACKED
; /* length in bytes */
430 unsigned int link_address PACKED
; /* for linking command chains */
431 unsigned char clink_id
; /* identifies command in chain */
432 unsigned char use_sg
; /* (if sg is set) 8 bytes per list */
433 unsigned char sense_len
;
434 unsigned char cdb_len
; /* 6, 10, or 12 */
435 unsigned char cdb
[12]; /* SCSI Command Descriptor Block */
436 unsigned char adapter_status
; /* non-zero indicates HA error */
437 unsigned char target_status
; /* non-zero indicates target error */
438 unsigned int sense_addr PACKED
;
440 /* Additional fields begin here. */
441 struct scsi_cmnd
*SCpnt
;
442 unsigned int cpp_index
; /* cp index */
444 /* All the cp structure is zero filled by queuecommand except the
445 following CP_TAIL_SIZE bytes, initialized by detect */
446 dma_addr_t cp_dma_addr
; /* dma handle for this cp structure */
447 struct sg_list
*sglist
; /* pointer to the allocated SG list */
450 #define CP_TAIL_SIZE (sizeof(struct sglist *) + sizeof(dma_addr_t))
453 struct mscp cp
[MAX_MAILBOXES
]; /* Mailboxes for this board */
454 unsigned int cp_stat
[MAX_MAILBOXES
]; /* FREE, IN_USE, LOCKED, IN_RESET */
455 unsigned int last_cp_used
; /* Index of last mailbox used */
456 unsigned int iocount
; /* Total i/o done for this board */
457 int board_number
; /* Number of this board */
458 char board_name
[16]; /* Name of this board */
459 int in_reset
; /* True if board is doing a reset */
460 int target_to
[MAX_TARGET
][MAX_CHANNEL
]; /* N. of timeout errors on target */
461 int target_redo
[MAX_TARGET
][MAX_CHANNEL
]; /* If TRUE redo i/o on target */
462 unsigned int retries
; /* Number of internal retries */
463 unsigned long last_retried_pid
; /* Pid of last retried command */
464 unsigned char subversion
; /* Bus type, either ISA or ESA */
465 struct pci_dev
*pdev
; /* Always NULL */
467 unsigned char sectors
;
468 char board_id
[256]; /* data from INQUIRY on this board */
471 static struct Scsi_Host
*sh
[MAX_BOARDS
+ 1];
472 static const char *driver_name
= "Ux4F";
473 static char sha
[MAX_BOARDS
];
474 static DEFINE_SPINLOCK(driver_lock
);
476 /* Initialize num_boards so that ihdlr can work while detect is in progress */
477 static unsigned int num_boards
= MAX_BOARDS
;
479 static unsigned long io_port
[] = {
481 /* Space for MAX_INT_PARAM ports usable while loading as a module */
482 SKIP
, SKIP
, SKIP
, SKIP
, SKIP
, SKIP
, SKIP
, SKIP
,
485 /* Possible ISA/VESA ports */
486 0x330, 0x340, 0x230, 0x240, 0x210, 0x130, 0x140,
492 #define HD(board) ((struct hostdata *) &sh[board]->hostdata)
493 #define BN(board) (HD(board)->board_name)
495 /* Device is Little Endian */
496 #define H2DEV(x) cpu_to_le32(x)
497 #define DEV2H(x) le32_to_cpu(x)
499 static irqreturn_t
do_interrupt_handler(int, void *);
500 static void flush_dev(struct scsi_device
*, unsigned long, unsigned int, unsigned int);
501 static int do_trace
= FALSE
;
502 static int setup_done
= FALSE
;
503 static int link_statistics
;
504 static int ext_tran
= FALSE
;
506 #if defined(HAVE_OLD_UX4F_FIRMWARE)
507 static int have_old_firmware
= TRUE
;
509 static int have_old_firmware
= FALSE
;
512 #if defined(CONFIG_SCSI_U14_34F_TAGGED_QUEUE)
513 static int tag_mode
= TAG_SIMPLE
;
515 static int tag_mode
= TAG_DISABLED
;
518 #if defined(CONFIG_SCSI_U14_34F_LINKED_COMMANDS)
519 static int linked_comm
= TRUE
;
521 static int linked_comm
= FALSE
;
524 #if defined(CONFIG_SCSI_U14_34F_MAX_TAGS)
525 static int max_queue_depth
= CONFIG_SCSI_U14_34F_MAX_TAGS
;
527 static int max_queue_depth
= MAX_CMD_PER_LUN
;
530 #define MAX_INT_PARAM 10
531 #define MAX_BOOT_OPTIONS_SIZE 256
532 static char boot_options
[MAX_BOOT_OPTIONS_SIZE
];
535 #include <linux/module.h>
536 #include <linux/moduleparam.h>
538 module_param_string(u14_34f
, boot_options
, MAX_BOOT_OPTIONS_SIZE
, 0);
539 MODULE_PARM_DESC(u14_34f
, " equivalent to the \"u14-34f=...\" kernel boot " \
541 " Example: modprobe u14-34f \"u14_34f=0x340,0x330,lc:y,tm:0,mq:4\"");
542 MODULE_AUTHOR("Dario Ballabio");
543 MODULE_LICENSE("GPL");
544 MODULE_DESCRIPTION("UltraStor 14F/34F SCSI Driver");
548 static int u14_34f_slave_configure(struct scsi_device
*dev
) {
550 char *tag_suffix
, *link_suffix
;
551 struct Scsi_Host
*host
= dev
->host
;
553 j
= ((struct hostdata
*) host
->hostdata
)->board_number
;
555 utqd
= MAX_CMD_PER_LUN
;
556 tqd
= max_queue_depth
;
558 if (TLDEV(dev
->type
) && dev
->tagged_supported
)
560 if (tag_mode
== TAG_SIMPLE
) {
561 scsi_adjust_queue_depth(dev
, MSG_SIMPLE_TAG
, tqd
);
562 tag_suffix
= ", simple tags";
564 else if (tag_mode
== TAG_ORDERED
) {
565 scsi_adjust_queue_depth(dev
, MSG_ORDERED_TAG
, tqd
);
566 tag_suffix
= ", ordered tags";
569 scsi_adjust_queue_depth(dev
, 0, tqd
);
570 tag_suffix
= ", no tags";
573 else if (TLDEV(dev
->type
) && linked_comm
) {
574 scsi_adjust_queue_depth(dev
, 0, tqd
);
575 tag_suffix
= ", untagged";
579 scsi_adjust_queue_depth(dev
, 0, utqd
);
583 if (TLDEV(dev
->type
) && linked_comm
&& dev
->queue_depth
> 2)
584 link_suffix
= ", sorted";
585 else if (TLDEV(dev
->type
))
586 link_suffix
= ", unsorted";
590 sdev_printk(KERN_INFO
, dev
, "cmds/lun %d%s%s.\n",
591 dev
->queue_depth
, link_suffix
, tag_suffix
);
596 static int wait_on_busy(unsigned long iobase
, unsigned int loop
) {
598 while (inb(iobase
+ REG_LCL_INTR
) & BSY_ASSERTED
) {
600 if (--loop
== 0) return TRUE
;
606 static int board_inquiry(unsigned int j
) {
608 dma_addr_t id_dma_addr
;
609 unsigned int limit
= 0;
612 id_dma_addr
= pci_map_single(HD(j
)->pdev
, HD(j
)->board_id
,
613 sizeof(HD(j
)->board_id
), PCI_DMA_BIDIRECTIONAL
);
615 cpp
->cp_dma_addr
= pci_map_single(HD(j
)->pdev
, cpp
, sizeof(struct mscp
),
616 PCI_DMA_BIDIRECTIONAL
);
617 memset(cpp
, 0, sizeof(struct mscp
) - CP_TAIL_SIZE
);
618 cpp
->opcode
= OP_HOST_ADAPTER
;
620 cpp
->data_address
= H2DEV(id_dma_addr
);
621 cpp
->data_len
= H2DEV(sizeof(HD(j
)->board_id
));
623 cpp
->cdb
[0] = HA_CMD_INQUIRY
;
625 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
626 printk("%s: board_inquiry, adapter busy.\n", BN(j
));
630 HD(j
)->cp_stat
[0] = IGNORE
;
632 /* Clear the interrupt indication */
633 outb(CMD_CLR_INTR
, sh
[j
]->io_port
+ REG_SYS_INTR
);
635 /* Store pointer in OGM address bytes */
636 outl(H2DEV(cpp
->cp_dma_addr
), sh
[j
]->io_port
+ REG_OGM
);
638 /* Issue OGM interrupt */
639 outb(CMD_OGM_INTR
, sh
[j
]->io_port
+ REG_LCL_INTR
);
641 spin_unlock_irq(&driver_lock
);
643 while ((jiffies
- time
) < HZ
&& limit
++ < 20000) udelay(100L);
644 spin_lock_irq(&driver_lock
);
646 if (cpp
->adapter_status
|| HD(j
)->cp_stat
[0] != FREE
) {
647 HD(j
)->cp_stat
[0] = FREE
;
648 printk("%s: board_inquiry, err 0x%x.\n", BN(j
), cpp
->adapter_status
);
652 pci_unmap_single(HD(j
)->pdev
, cpp
->cp_dma_addr
, sizeof(struct mscp
),
653 PCI_DMA_BIDIRECTIONAL
);
654 pci_unmap_single(HD(j
)->pdev
, id_dma_addr
, sizeof(HD(j
)->board_id
),
655 PCI_DMA_BIDIRECTIONAL
);
659 static int port_detect \
660 (unsigned long port_base
, unsigned int j
, struct scsi_host_template
*tpnt
) {
661 unsigned char irq
, dma_channel
, subversion
, i
;
662 unsigned char in_byte
;
663 char *bus_type
, dma_name
[16];
665 /* Allowed BIOS base addresses (NULL indicates reserved) */
666 unsigned long bios_segment_table
[8] = {
668 0xc4000, 0xc8000, 0xcc000, 0xd0000,
669 0xd4000, 0xd8000, 0xdc000
673 unsigned char interrupt_table
[4] = { 15, 14, 11, 10 };
675 /* Allowed DMA channels for ISA (0 indicates reserved) */
676 unsigned char dma_channel_table
[4] = { 5, 6, 7, 0 };
678 /* Head/sector mappings */
681 unsigned char sectors
;
682 } mapping_table
[4] = {
683 { 16, 63 }, { 64, 32 }, { 64, 63 }, { 64, 32 }
688 #if defined(__BIG_ENDIAN_BITFIELD)
689 unsigned char dma_channel
: 2, interrupt
:2,
690 removable_disks_as_fixed
:1, bios_segment
: 3;
692 unsigned char bios_segment
: 3, removable_disks_as_fixed
: 1,
693 interrupt
: 2, dma_channel
: 2;
700 #if defined(__BIG_ENDIAN_BITFIELD)
701 unsigned char tfr_port
: 2, bios_drive_number
: 1,
702 mapping_mode
: 2, ha_scsi_id
: 3;
704 unsigned char ha_scsi_id
: 3, mapping_mode
: 2,
705 bios_drive_number
: 1, tfr_port
: 2;
712 sprintf(name
, "%s%d", driver_name
, j
);
714 if (!request_region(port_base
, REGION_SIZE
, driver_name
)) {
715 #if defined(DEBUG_DETECT)
716 printk("%s: address 0x%03lx in use, skipping probe.\n", name
, port_base
);
721 spin_lock_irq(&driver_lock
);
723 if (inb(port_base
+ REG_PRODUCT_ID1
) != PRODUCT_ID1
) goto freelock
;
725 in_byte
= inb(port_base
+ REG_PRODUCT_ID2
);
727 if ((in_byte
& 0xf0) != PRODUCT_ID2
) goto freelock
;
729 *(char *)&config_1
= inb(port_base
+ REG_CONFIG1
);
730 *(char *)&config_2
= inb(port_base
+ REG_CONFIG2
);
732 irq
= interrupt_table
[config_1
.interrupt
];
733 dma_channel
= dma_channel_table
[config_1
.dma_channel
];
734 subversion
= (in_byte
& 0x0f);
736 /* Board detected, allocate its IRQ */
737 if (request_irq(irq
, do_interrupt_handler
,
738 IRQF_DISABLED
| ((subversion
== ESA
) ? IRQF_SHARED
: 0),
739 driver_name
, (void *) &sha
[j
])) {
740 printk("%s: unable to allocate IRQ %u, detaching.\n", name
, irq
);
744 if (subversion
== ISA
&& request_dma(dma_channel
, driver_name
)) {
745 printk("%s: unable to allocate DMA channel %u, detaching.\n",
750 if (have_old_firmware
) tpnt
->use_clustering
= DISABLE_CLUSTERING
;
752 spin_unlock_irq(&driver_lock
);
753 sh
[j
] = scsi_register(tpnt
, sizeof(struct hostdata
));
754 spin_lock_irq(&driver_lock
);
757 printk("%s: unable to register host, detaching.\n", name
);
761 sh
[j
]->io_port
= port_base
;
762 sh
[j
]->unique_id
= port_base
;
763 sh
[j
]->n_io_port
= REGION_SIZE
;
764 sh
[j
]->base
= bios_segment_table
[config_1
.bios_segment
];
766 sh
[j
]->sg_tablesize
= MAX_SGLIST
;
767 sh
[j
]->this_id
= config_2
.ha_scsi_id
;
768 sh
[j
]->can_queue
= MAX_MAILBOXES
;
769 sh
[j
]->cmd_per_lun
= MAX_CMD_PER_LUN
;
771 #if defined(DEBUG_DETECT)
773 unsigned char sys_mask
, lcl_mask
;
775 sys_mask
= inb(sh
[j
]->io_port
+ REG_SYS_MASK
);
776 lcl_mask
= inb(sh
[j
]->io_port
+ REG_LCL_MASK
);
777 printk("SYS_MASK 0x%x, LCL_MASK 0x%x.\n", sys_mask
, lcl_mask
);
781 /* Probably a bogus host scsi id, set it to the dummy value */
782 if (sh
[j
]->this_id
== 0) sh
[j
]->this_id
= -1;
784 /* If BIOS is disabled, force enable interrupts */
785 if (sh
[j
]->base
== 0) outb(CMD_ENA_INTR
, sh
[j
]->io_port
+ REG_SYS_MASK
);
787 memset(HD(j
), 0, sizeof(struct hostdata
));
788 HD(j
)->heads
= mapping_table
[config_2
.mapping_mode
].heads
;
789 HD(j
)->sectors
= mapping_table
[config_2
.mapping_mode
].sectors
;
790 HD(j
)->subversion
= subversion
;
792 HD(j
)->board_number
= j
;
794 if (have_old_firmware
) sh
[j
]->sg_tablesize
= MAX_SAFE_SGLIST
;
796 if (HD(j
)->subversion
== ESA
) {
797 sh
[j
]->unchecked_isa_dma
= FALSE
;
798 sh
[j
]->dma_channel
= NO_DMA
;
799 sprintf(BN(j
), "U34F%d", j
);
804 sh
[j
]->unchecked_isa_dma
= TRUE
;
806 flags
=claim_dma_lock();
807 disable_dma(dma_channel
);
808 clear_dma_ff(dma_channel
);
809 set_dma_mode(dma_channel
, DMA_MODE_CASCADE
);
810 enable_dma(dma_channel
);
811 release_dma_lock(flags
);
813 sh
[j
]->dma_channel
= dma_channel
;
814 sprintf(BN(j
), "U14F%d", j
);
818 sh
[j
]->max_channel
= MAX_CHANNEL
- 1;
819 sh
[j
]->max_id
= MAX_TARGET
;
820 sh
[j
]->max_lun
= MAX_LUN
;
822 if (HD(j
)->subversion
== ISA
&& !board_inquiry(j
)) {
823 HD(j
)->board_id
[40] = 0;
825 if (strcmp(&HD(j
)->board_id
[32], "06000600")) {
826 printk("%s: %s.\n", BN(j
), &HD(j
)->board_id
[8]);
827 printk("%s: firmware %s is outdated, FW PROM should be 28004-006.\n",
828 BN(j
), &HD(j
)->board_id
[32]);
829 sh
[j
]->hostt
->use_clustering
= DISABLE_CLUSTERING
;
830 sh
[j
]->sg_tablesize
= MAX_SAFE_SGLIST
;
834 if (dma_channel
== NO_DMA
) sprintf(dma_name
, "%s", "BMST");
835 else sprintf(dma_name
, "DMA %u", dma_channel
);
837 spin_unlock_irq(&driver_lock
);
839 for (i
= 0; i
< sh
[j
]->can_queue
; i
++)
840 HD(j
)->cp
[i
].cp_dma_addr
= pci_map_single(HD(j
)->pdev
,
841 &HD(j
)->cp
[i
], sizeof(struct mscp
), PCI_DMA_BIDIRECTIONAL
);
843 for (i
= 0; i
< sh
[j
]->can_queue
; i
++)
844 if (! ((&HD(j
)->cp
[i
])->sglist
= kmalloc(
845 sh
[j
]->sg_tablesize
* sizeof(struct sg_list
),
846 (sh
[j
]->unchecked_isa_dma
? GFP_DMA
: 0) | GFP_ATOMIC
))) {
847 printk("%s: kmalloc SGlist failed, mbox %d, detaching.\n", BN(j
), i
);
851 if (max_queue_depth
> MAX_TAGGED_CMD_PER_LUN
)
852 max_queue_depth
= MAX_TAGGED_CMD_PER_LUN
;
854 if (max_queue_depth
< MAX_CMD_PER_LUN
) max_queue_depth
= MAX_CMD_PER_LUN
;
856 if (tag_mode
!= TAG_DISABLED
&& tag_mode
!= TAG_SIMPLE
)
857 tag_mode
= TAG_ORDERED
;
860 printk("UltraStor 14F/34F: Copyright (C) 1994-2003 Dario Ballabio.\n");
861 printk("%s config options -> of:%c, tm:%d, lc:%c, mq:%d, et:%c.\n",
862 driver_name
, YESNO(have_old_firmware
), tag_mode
,
863 YESNO(linked_comm
), max_queue_depth
, YESNO(ext_tran
));
866 printk("%s: %s 0x%03lx, BIOS 0x%05x, IRQ %u, %s, SG %d, MB %d.\n",
867 BN(j
), bus_type
, (unsigned long)sh
[j
]->io_port
, (int)sh
[j
]->base
,
868 sh
[j
]->irq
, dma_name
, sh
[j
]->sg_tablesize
, sh
[j
]->can_queue
);
870 if (sh
[j
]->max_id
> 8 || sh
[j
]->max_lun
> 8)
871 printk("%s: wide SCSI support enabled, max_id %u, max_lun %u.\n",
872 BN(j
), sh
[j
]->max_id
, sh
[j
]->max_lun
);
874 for (i
= 0; i
<= sh
[j
]->max_channel
; i
++)
875 printk("%s: SCSI channel %u enabled, host target ID %d.\n",
876 BN(j
), i
, sh
[j
]->this_id
);
881 if (subversion
== ISA
) free_dma(dma_channel
);
883 free_irq(irq
, &sha
[j
]);
885 spin_unlock_irq(&driver_lock
);
886 release_region(port_base
, REGION_SIZE
);
891 u14_34f_release(sh
[j
]);
895 static void internal_setup(char *str
, int *ints
) {
896 int i
, argc
= ints
[0];
897 char *cur
= str
, *pc
;
901 if (argc
> MAX_INT_PARAM
) argc
= MAX_INT_PARAM
;
903 for (i
= 0; i
< argc
; i
++) io_port
[i
] = ints
[i
+ 1];
909 while (cur
&& (pc
= strchr(cur
, ':'))) {
910 int val
= 0, c
= *++pc
;
912 if (c
== 'n' || c
== 'N') val
= FALSE
;
913 else if (c
== 'y' || c
== 'Y') val
= TRUE
;
914 else val
= (int) simple_strtoul(pc
, NULL
, 0);
916 if (!strncmp(cur
, "lc:", 3)) linked_comm
= val
;
917 else if (!strncmp(cur
, "of:", 3)) have_old_firmware
= val
;
918 else if (!strncmp(cur
, "tm:", 3)) tag_mode
= val
;
919 else if (!strncmp(cur
, "tc:", 3)) tag_mode
= val
;
920 else if (!strncmp(cur
, "mq:", 3)) max_queue_depth
= val
;
921 else if (!strncmp(cur
, "ls:", 3)) link_statistics
= val
;
922 else if (!strncmp(cur
, "et:", 3)) ext_tran
= val
;
924 if ((cur
= strchr(cur
, ','))) ++cur
;
930 static int option_setup(char *str
) {
931 int ints
[MAX_INT_PARAM
];
935 while (cur
&& isdigit(*cur
) && i
< MAX_INT_PARAM
) {
936 ints
[i
++] = simple_strtoul(cur
, NULL
, 0);
938 if ((cur
= strchr(cur
, ',')) != NULL
) cur
++;
942 internal_setup(cur
, ints
);
946 static int u14_34f_detect(struct scsi_host_template
*tpnt
) {
947 unsigned int j
= 0, k
;
949 tpnt
->proc_name
= "u14-34f";
951 if(strlen(boot_options
)) option_setup(boot_options
);
954 /* io_port could have been modified when loading as a module */
955 if(io_port
[0] != SKIP
) {
957 io_port
[MAX_INT_PARAM
] = 0;
961 for (k
= 0; k
< MAX_BOARDS
+ 1; k
++) sh
[k
] = NULL
;
963 for (k
= 0; io_port
[k
]; k
++) {
965 if (io_port
[k
] == SKIP
) continue;
967 if (j
< MAX_BOARDS
&& port_detect(io_port
[k
], j
, tpnt
)) j
++;
974 static void map_dma(unsigned int i
, unsigned int j
) {
975 unsigned int data_len
= 0;
976 unsigned int k
, pci_dir
;
978 struct scatterlist
*sg
;
980 struct scsi_cmnd
*SCpnt
;
982 cpp
= &HD(j
)->cp
[i
]; SCpnt
= cpp
->SCpnt
;
983 pci_dir
= SCpnt
->sc_data_direction
;
985 if (SCpnt
->sense_buffer
)
986 cpp
->sense_addr
= H2DEV(pci_map_single(HD(j
)->pdev
, SCpnt
->sense_buffer
,
987 SCSI_SENSE_BUFFERSIZE
, PCI_DMA_FROMDEVICE
));
989 cpp
->sense_len
= SCSI_SENSE_BUFFERSIZE
;
991 if (scsi_bufflen(SCpnt
)) {
992 count
= scsi_dma_map(SCpnt
);
995 scsi_for_each_sg(SCpnt
, sg
, count
, k
) {
996 cpp
->sglist
[k
].address
= H2DEV(sg_dma_address(sg
));
997 cpp
->sglist
[k
].num_bytes
= H2DEV(sg_dma_len(sg
));
998 data_len
+= sg
->length
;
1002 cpp
->use_sg
= scsi_sg_count(SCpnt
);
1004 H2DEV(pci_map_single(HD(j
)->pdev
, cpp
->sglist
,
1005 cpp
->use_sg
* sizeof(struct sg_list
),
1007 cpp
->data_len
= H2DEV(data_len
);
1010 pci_dir
= PCI_DMA_BIDIRECTIONAL
;
1011 cpp
->data_len
= H2DEV(scsi_bufflen(SCpnt
));
1015 static void unmap_dma(unsigned int i
, unsigned int j
) {
1016 unsigned int pci_dir
;
1018 struct scsi_cmnd
*SCpnt
;
1020 cpp
= &HD(j
)->cp
[i
]; SCpnt
= cpp
->SCpnt
;
1021 pci_dir
= SCpnt
->sc_data_direction
;
1023 if (DEV2H(cpp
->sense_addr
))
1024 pci_unmap_single(HD(j
)->pdev
, DEV2H(cpp
->sense_addr
),
1025 DEV2H(cpp
->sense_len
), PCI_DMA_FROMDEVICE
);
1027 scsi_dma_unmap(SCpnt
);
1029 if (!DEV2H(cpp
->data_len
)) pci_dir
= PCI_DMA_BIDIRECTIONAL
;
1031 if (DEV2H(cpp
->data_address
))
1032 pci_unmap_single(HD(j
)->pdev
, DEV2H(cpp
->data_address
),
1033 DEV2H(cpp
->data_len
), pci_dir
);
1036 static void sync_dma(unsigned int i
, unsigned int j
) {
1037 unsigned int pci_dir
;
1039 struct scsi_cmnd
*SCpnt
;
1041 cpp
= &HD(j
)->cp
[i
]; SCpnt
= cpp
->SCpnt
;
1042 pci_dir
= SCpnt
->sc_data_direction
;
1044 if (DEV2H(cpp
->sense_addr
))
1045 pci_dma_sync_single_for_cpu(HD(j
)->pdev
, DEV2H(cpp
->sense_addr
),
1046 DEV2H(cpp
->sense_len
), PCI_DMA_FROMDEVICE
);
1048 if (scsi_sg_count(SCpnt
))
1049 pci_dma_sync_sg_for_cpu(HD(j
)->pdev
, scsi_sglist(SCpnt
),
1050 scsi_sg_count(SCpnt
), pci_dir
);
1052 if (!DEV2H(cpp
->data_len
)) pci_dir
= PCI_DMA_BIDIRECTIONAL
;
1054 if (DEV2H(cpp
->data_address
))
1055 pci_dma_sync_single_for_cpu(HD(j
)->pdev
, DEV2H(cpp
->data_address
),
1056 DEV2H(cpp
->data_len
), pci_dir
);
1059 static void scsi_to_dev_dir(unsigned int i
, unsigned int j
) {
1062 static const unsigned char data_out_cmds
[] = {
1063 0x0a, 0x2a, 0x15, 0x55, 0x04, 0x07, 0x18, 0x1d, 0x24, 0x2e,
1064 0x30, 0x31, 0x32, 0x38, 0x39, 0x3a, 0x3b, 0x3d, 0x3f, 0x40,
1065 0x41, 0x4c, 0xaa, 0xae, 0xb0, 0xb1, 0xb2, 0xb6, 0xea, 0x1b, 0x5d
1068 static const unsigned char data_none_cmds
[] = {
1069 0x01, 0x0b, 0x10, 0x11, 0x13, 0x16, 0x17, 0x19, 0x2b, 0x1e,
1070 0x2c, 0xac, 0x2f, 0xaf, 0x33, 0xb3, 0x35, 0x36, 0x45, 0x47,
1071 0x48, 0x49, 0xa9, 0x4b, 0xa5, 0xa6, 0xb5, 0x00
1075 struct scsi_cmnd
*SCpnt
;
1077 cpp
= &HD(j
)->cp
[i
]; SCpnt
= cpp
->SCpnt
;
1079 if (SCpnt
->sc_data_direction
== DMA_FROM_DEVICE
) {
1083 else if (SCpnt
->sc_data_direction
== DMA_TO_DEVICE
) {
1084 cpp
->xdir
= DTD_OUT
;
1087 else if (SCpnt
->sc_data_direction
== DMA_NONE
) {
1088 cpp
->xdir
= DTD_NONE
;
1092 if (SCpnt
->sc_data_direction
!= DMA_BIDIRECTIONAL
)
1093 panic("%s: qcomm, invalid SCpnt->sc_data_direction.\n", BN(j
));
1097 for (k
= 0; k
< ARRAY_SIZE(data_out_cmds
); k
++)
1098 if (SCpnt
->cmnd
[0] == data_out_cmds
[k
]) {
1099 cpp
->xdir
= DTD_OUT
;
1103 if (cpp
->xdir
== DTD_IN
)
1104 for (k
= 0; k
< ARRAY_SIZE(data_none_cmds
); k
++)
1105 if (SCpnt
->cmnd
[0] == data_none_cmds
[k
]) {
1106 cpp
->xdir
= DTD_NONE
;
1112 static int u14_34f_queuecommand(struct scsi_cmnd
*SCpnt
, void (*done
)(struct scsi_cmnd
*)) {
1113 unsigned int i
, j
, k
;
1116 /* j is the board number */
1117 j
= ((struct hostdata
*) SCpnt
->device
->host
->hostdata
)->board_number
;
1119 if (SCpnt
->host_scribble
)
1120 panic("%s: qcomm, pid %ld, SCpnt %p already active.\n",
1121 BN(j
), SCpnt
->serial_number
, SCpnt
);
1123 /* i is the mailbox number, look for the first free mailbox
1124 starting from last_cp_used */
1125 i
= HD(j
)->last_cp_used
+ 1;
1127 for (k
= 0; k
< sh
[j
]->can_queue
; k
++, i
++) {
1129 if (i
>= sh
[j
]->can_queue
) i
= 0;
1131 if (HD(j
)->cp_stat
[i
] == FREE
) {
1132 HD(j
)->last_cp_used
= i
;
1137 if (k
== sh
[j
]->can_queue
) {
1138 printk("%s: qcomm, no free mailbox.\n", BN(j
));
1142 /* Set pointer to control packet structure */
1143 cpp
= &HD(j
)->cp
[i
];
1145 memset(cpp
, 0, sizeof(struct mscp
) - CP_TAIL_SIZE
);
1146 SCpnt
->scsi_done
= done
;
1148 SCpnt
->host_scribble
= (unsigned char *) &cpp
->cpp_index
;
1150 if (do_trace
) printk("%s: qcomm, mbox %d, target %d.%d:%d, pid %ld.\n",
1151 BN(j
), i
, SCpnt
->device
->channel
, SCpnt
->device
->id
,
1152 SCpnt
->device
->lun
, SCpnt
->serial_number
);
1154 cpp
->opcode
= OP_SCSI
;
1155 cpp
->channel
= SCpnt
->device
->channel
;
1156 cpp
->target
= SCpnt
->device
->id
;
1157 cpp
->lun
= SCpnt
->device
->lun
;
1159 cpp
->cdb_len
= SCpnt
->cmd_len
;
1160 memcpy(cpp
->cdb
, SCpnt
->cmnd
, SCpnt
->cmd_len
);
1162 /* Use data transfer direction SCpnt->sc_data_direction */
1163 scsi_to_dev_dir(i
, j
);
1165 /* Map DMA buffers and SG list */
1168 if (linked_comm
&& SCpnt
->device
->queue_depth
> 2
1169 && TLDEV(SCpnt
->device
->type
)) {
1170 HD(j
)->cp_stat
[i
] = READY
;
1171 flush_dev(SCpnt
->device
, blk_rq_pos(SCpnt
->request
), j
, FALSE
);
1175 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
1177 SCpnt
->host_scribble
= NULL
;
1178 scmd_printk(KERN_INFO
, SCpnt
,
1179 "qcomm, pid %ld, adapter busy.\n", SCpnt
->serial_number
);
1183 /* Store pointer in OGM address bytes */
1184 outl(H2DEV(cpp
->cp_dma_addr
), sh
[j
]->io_port
+ REG_OGM
);
1186 /* Issue OGM interrupt */
1187 outb(CMD_OGM_INTR
, sh
[j
]->io_port
+ REG_LCL_INTR
);
1189 HD(j
)->cp_stat
[i
] = IN_USE
;
1193 static int u14_34f_eh_abort(struct scsi_cmnd
*SCarg
) {
1196 j
= ((struct hostdata
*) SCarg
->device
->host
->hostdata
)->board_number
;
1198 if (SCarg
->host_scribble
== NULL
) {
1199 scmd_printk(KERN_INFO
, SCarg
, "abort, pid %ld inactive.\n",
1200 SCarg
->serial_number
);
1204 i
= *(unsigned int *)SCarg
->host_scribble
;
1205 scmd_printk(KERN_INFO
, SCarg
, "abort, mbox %d, pid %ld.\n",
1206 i
, SCarg
->serial_number
);
1208 if (i
>= sh
[j
]->can_queue
)
1209 panic("%s: abort, invalid SCarg->host_scribble.\n", BN(j
));
1211 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
1212 printk("%s: abort, timeout error.\n", BN(j
));
1216 if (HD(j
)->cp_stat
[i
] == FREE
) {
1217 printk("%s: abort, mbox %d is free.\n", BN(j
), i
);
1221 if (HD(j
)->cp_stat
[i
] == IN_USE
) {
1222 printk("%s: abort, mbox %d is in use.\n", BN(j
), i
);
1224 if (SCarg
!= HD(j
)->cp
[i
].SCpnt
)
1225 panic("%s: abort, mbox %d, SCarg %p, cp SCpnt %p.\n",
1226 BN(j
), i
, SCarg
, HD(j
)->cp
[i
].SCpnt
);
1228 if (inb(sh
[j
]->io_port
+ REG_SYS_INTR
) & IRQ_ASSERTED
)
1229 printk("%s: abort, mbox %d, interrupt pending.\n", BN(j
), i
);
1234 if (HD(j
)->cp_stat
[i
] == IN_RESET
) {
1235 printk("%s: abort, mbox %d is in reset.\n", BN(j
), i
);
1239 if (HD(j
)->cp_stat
[i
] == LOCKED
) {
1240 printk("%s: abort, mbox %d is locked.\n", BN(j
), i
);
1244 if (HD(j
)->cp_stat
[i
] == READY
|| HD(j
)->cp_stat
[i
] == ABORTING
) {
1246 SCarg
->result
= DID_ABORT
<< 16;
1247 SCarg
->host_scribble
= NULL
;
1248 HD(j
)->cp_stat
[i
] = FREE
;
1249 printk("%s, abort, mbox %d ready, DID_ABORT, pid %ld done.\n",
1250 BN(j
), i
, SCarg
->serial_number
);
1251 SCarg
->scsi_done(SCarg
);
1255 panic("%s: abort, mbox %d, invalid cp_stat.\n", BN(j
), i
);
1258 static int u14_34f_eh_host_reset(struct scsi_cmnd
*SCarg
) {
1259 unsigned int i
, j
, k
, c
, limit
= 0;
1261 int arg_done
= FALSE
;
1262 struct scsi_cmnd
*SCpnt
;
1264 j
= ((struct hostdata
*) SCarg
->device
->host
->hostdata
)->board_number
;
1265 scmd_printk(KERN_INFO
, SCarg
, "reset, enter, pid %ld.\n", SCarg
->serial_number
);
1267 spin_lock_irq(sh
[j
]->host_lock
);
1269 if (SCarg
->host_scribble
== NULL
)
1270 printk("%s: reset, pid %ld inactive.\n", BN(j
), SCarg
->serial_number
);
1272 if (HD(j
)->in_reset
) {
1273 printk("%s: reset, exit, already in reset.\n", BN(j
));
1274 spin_unlock_irq(sh
[j
]->host_lock
);
1278 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
1279 printk("%s: reset, exit, timeout error.\n", BN(j
));
1280 spin_unlock_irq(sh
[j
]->host_lock
);
1286 for (c
= 0; c
<= sh
[j
]->max_channel
; c
++)
1287 for (k
= 0; k
< sh
[j
]->max_id
; k
++) {
1288 HD(j
)->target_redo
[k
][c
] = TRUE
;
1289 HD(j
)->target_to
[k
][c
] = 0;
1292 for (i
= 0; i
< sh
[j
]->can_queue
; i
++) {
1294 if (HD(j
)->cp_stat
[i
] == FREE
) continue;
1296 if (HD(j
)->cp_stat
[i
] == LOCKED
) {
1297 HD(j
)->cp_stat
[i
] = FREE
;
1298 printk("%s: reset, locked mbox %d forced free.\n", BN(j
), i
);
1302 if (!(SCpnt
= HD(j
)->cp
[i
].SCpnt
))
1303 panic("%s: reset, mbox %d, SCpnt == NULL.\n", BN(j
), i
);
1305 if (HD(j
)->cp_stat
[i
] == READY
|| HD(j
)->cp_stat
[i
] == ABORTING
) {
1306 HD(j
)->cp_stat
[i
] = ABORTING
;
1307 printk("%s: reset, mbox %d aborting, pid %ld.\n",
1308 BN(j
), i
, SCpnt
->serial_number
);
1312 HD(j
)->cp_stat
[i
] = IN_RESET
;
1313 printk("%s: reset, mbox %d in reset, pid %ld.\n",
1314 BN(j
), i
, SCpnt
->serial_number
);
1317 if (SCpnt
->host_scribble
== NULL
)
1318 panic("%s: reset, mbox %d, garbled SCpnt.\n", BN(j
), i
);
1320 if (*(unsigned int *)SCpnt
->host_scribble
!= i
)
1321 panic("%s: reset, mbox %d, index mismatch.\n", BN(j
), i
);
1323 if (SCpnt
->scsi_done
== NULL
)
1324 panic("%s: reset, mbox %d, SCpnt->scsi_done == NULL.\n", BN(j
), i
);
1326 if (SCpnt
== SCarg
) arg_done
= TRUE
;
1329 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
1330 printk("%s: reset, cannot reset, timeout error.\n", BN(j
));
1331 spin_unlock_irq(sh
[j
]->host_lock
);
1335 outb(CMD_RESET
, sh
[j
]->io_port
+ REG_LCL_INTR
);
1336 printk("%s: reset, board reset done, enabling interrupts.\n", BN(j
));
1338 #if defined(DEBUG_RESET)
1342 HD(j
)->in_reset
= TRUE
;
1344 spin_unlock_irq(sh
[j
]->host_lock
);
1346 while ((jiffies
- time
) < (10 * HZ
) && limit
++ < 200000) udelay(100L);
1347 spin_lock_irq(sh
[j
]->host_lock
);
1349 printk("%s: reset, interrupts disabled, loops %d.\n", BN(j
), limit
);
1351 for (i
= 0; i
< sh
[j
]->can_queue
; i
++) {
1353 if (HD(j
)->cp_stat
[i
] == IN_RESET
) {
1354 SCpnt
= HD(j
)->cp
[i
].SCpnt
;
1356 SCpnt
->result
= DID_RESET
<< 16;
1357 SCpnt
->host_scribble
= NULL
;
1359 /* This mailbox is still waiting for its interrupt */
1360 HD(j
)->cp_stat
[i
] = LOCKED
;
1362 printk("%s, reset, mbox %d locked, DID_RESET, pid %ld done.\n",
1363 BN(j
), i
, SCpnt
->serial_number
);
1366 else if (HD(j
)->cp_stat
[i
] == ABORTING
) {
1367 SCpnt
= HD(j
)->cp
[i
].SCpnt
;
1369 SCpnt
->result
= DID_RESET
<< 16;
1370 SCpnt
->host_scribble
= NULL
;
1372 /* This mailbox was never queued to the adapter */
1373 HD(j
)->cp_stat
[i
] = FREE
;
1375 printk("%s, reset, mbox %d aborting, DID_RESET, pid %ld done.\n",
1376 BN(j
), i
, SCpnt
->serial_number
);
1381 /* Any other mailbox has already been set free by interrupt */
1384 SCpnt
->scsi_done(SCpnt
);
1387 HD(j
)->in_reset
= FALSE
;
1390 if (arg_done
) printk("%s: reset, exit, pid %ld done.\n", BN(j
), SCarg
->serial_number
);
1391 else printk("%s: reset, exit.\n", BN(j
));
1393 spin_unlock_irq(sh
[j
]->host_lock
);
1397 static int u14_34f_bios_param(struct scsi_device
*disk
,
1398 struct block_device
*bdev
, sector_t capacity
, int *dkinfo
) {
1400 unsigned int size
= capacity
;
1402 dkinfo
[0] = HD(j
)->heads
;
1403 dkinfo
[1] = HD(j
)->sectors
;
1404 dkinfo
[2] = size
/ (HD(j
)->heads
* HD(j
)->sectors
);
1406 if (ext_tran
&& (scsicam_bios_param(bdev
, capacity
, dkinfo
) < 0)) {
1409 dkinfo
[2] = size
/ (dkinfo
[0] * dkinfo
[1]);
1412 #if defined(DEBUG_GEOMETRY)
1413 printk ("%s: bios_param, head=%d, sec=%d, cyl=%d.\n", driver_name
,
1414 dkinfo
[0], dkinfo
[1], dkinfo
[2]);
1420 static void sort(unsigned long sk
[], unsigned int da
[], unsigned int n
,
1422 unsigned int i
, j
, k
, y
;
1425 for (i
= 0; i
< n
- 1; i
++) {
1428 for (j
= k
+ 1; j
< n
; j
++)
1430 if (sk
[j
] > sk
[k
]) k
= j
;
1433 if (sk
[j
] < sk
[k
]) k
= j
;
1437 x
= sk
[k
]; sk
[k
] = sk
[i
]; sk
[i
] = x
;
1438 y
= da
[k
]; da
[k
] = da
[i
]; da
[i
] = y
;
1445 static int reorder(unsigned int j
, unsigned long cursec
,
1446 unsigned int ihdlr
, unsigned int il
[], unsigned int n_ready
) {
1447 struct scsi_cmnd
*SCpnt
;
1450 unsigned int rev
= FALSE
, s
= TRUE
, r
= TRUE
;
1451 unsigned int input_only
= TRUE
, overlap
= FALSE
;
1452 unsigned long sl
[n_ready
], pl
[n_ready
], ll
[n_ready
];
1453 unsigned long maxsec
= 0, minsec
= ULONG_MAX
, seek
= 0, iseek
= 0;
1454 unsigned long ioseek
= 0;
1456 static unsigned int flushcount
= 0, batchcount
= 0, sortcount
= 0;
1457 static unsigned int readycount
= 0, ovlcount
= 0, inputcount
= 0;
1458 static unsigned int readysorted
= 0, revcount
= 0;
1459 static unsigned long seeksorted
= 0, seeknosort
= 0;
1461 if (link_statistics
&& !(++flushcount
% link_statistics
))
1462 printk("fc %d bc %d ic %d oc %d rc %d rs %d sc %d re %d"\
1463 " av %ldK as %ldK.\n", flushcount
, batchcount
, inputcount
,
1464 ovlcount
, readycount
, readysorted
, sortcount
, revcount
,
1465 seeknosort
/ (readycount
+ 1),
1466 seeksorted
/ (readycount
+ 1));
1468 if (n_ready
<= 1) return FALSE
;
1470 for (n
= 0; n
< n_ready
; n
++) {
1471 k
= il
[n
]; cpp
= &HD(j
)->cp
[k
]; SCpnt
= cpp
->SCpnt
;
1473 if (!(cpp
->xdir
== DTD_IN
)) input_only
= FALSE
;
1475 if (blk_rq_pos(SCpnt
->request
) < minsec
)
1476 minsec
= blk_rq_pos(SCpnt
->request
);
1477 if (blk_rq_pos(SCpnt
->request
) > maxsec
)
1478 maxsec
= blk_rq_pos(SCpnt
->request
);
1480 sl
[n
] = blk_rq_pos(SCpnt
->request
);
1481 ioseek
+= blk_rq_sectors(SCpnt
->request
);
1485 if (sl
[n
] < sl
[n
- 1]) s
= FALSE
;
1486 if (sl
[n
] > sl
[n
- 1]) r
= FALSE
;
1488 if (link_statistics
) {
1489 if (sl
[n
] > sl
[n
- 1])
1490 seek
+= sl
[n
] - sl
[n
- 1];
1492 seek
+= sl
[n
- 1] - sl
[n
];
1497 if (link_statistics
) {
1498 if (cursec
> sl
[0]) seek
+= cursec
- sl
[0]; else seek
+= sl
[0] - cursec
;
1501 if (cursec
> ((maxsec
+ minsec
) / 2)) rev
= TRUE
;
1503 if (ioseek
> ((maxsec
- minsec
) / 2)) rev
= FALSE
;
1505 if (!((rev
&& r
) || (!rev
&& s
))) sort(sl
, il
, n_ready
, rev
);
1507 if (!input_only
) for (n
= 0; n
< n_ready
; n
++) {
1508 k
= il
[n
]; cpp
= &HD(j
)->cp
[k
]; SCpnt
= cpp
->SCpnt
;
1509 ll
[n
] = blk_rq_sectors(SCpnt
->request
); pl
[n
] = SCpnt
->serial_number
;
1513 if ((sl
[n
] == sl
[n
- 1]) || (!rev
&& ((sl
[n
- 1] + ll
[n
- 1]) > sl
[n
]))
1514 || (rev
&& ((sl
[n
] + ll
[n
]) > sl
[n
- 1]))) overlap
= TRUE
;
1517 if (overlap
) sort(pl
, il
, n_ready
, FALSE
);
1519 if (link_statistics
) {
1520 if (cursec
> sl
[0]) iseek
= cursec
- sl
[0]; else iseek
= sl
[0] - cursec
;
1521 batchcount
++; readycount
+= n_ready
; seeknosort
+= seek
/ 1024;
1522 if (input_only
) inputcount
++;
1523 if (overlap
) { ovlcount
++; seeksorted
+= iseek
/ 1024; }
1524 else seeksorted
+= (iseek
+ maxsec
- minsec
) / 1024;
1525 if (rev
&& !r
) { revcount
++; readysorted
+= n_ready
; }
1526 if (!rev
&& !s
) { sortcount
++; readysorted
+= n_ready
; }
1529 #if defined(DEBUG_LINKED_COMMANDS)
1530 if (link_statistics
&& (overlap
|| !(flushcount
% link_statistics
)))
1531 for (n
= 0; n
< n_ready
; n
++) {
1532 k
= il
[n
]; cpp
= &HD(j
)->cp
[k
]; SCpnt
= cpp
->SCpnt
;
1533 printk("%s %d.%d:%d pid %ld mb %d fc %d nr %d sec %ld ns %u"\
1534 " cur %ld s:%c r:%c rev:%c in:%c ov:%c xd %d.\n",
1535 (ihdlr
? "ihdlr" : "qcomm"), SCpnt
->channel
, SCpnt
->target
,
1536 SCpnt
->lun
, SCpnt
->serial_number
, k
, flushcount
, n_ready
,
1537 blk_rq_pos(SCpnt
->request
), blk_rq_sectors(SCpnt
->request
),
1538 cursec
, YESNO(s
), YESNO(r
), YESNO(rev
), YESNO(input_only
),
1539 YESNO(overlap
), cpp
->xdir
);
1545 static void flush_dev(struct scsi_device
*dev
, unsigned long cursec
, unsigned int j
,
1546 unsigned int ihdlr
) {
1547 struct scsi_cmnd
*SCpnt
;
1549 unsigned int k
, n
, n_ready
= 0, il
[MAX_MAILBOXES
];
1551 for (k
= 0; k
< sh
[j
]->can_queue
; k
++) {
1553 if (HD(j
)->cp_stat
[k
] != READY
&& HD(j
)->cp_stat
[k
] != IN_USE
) continue;
1555 cpp
= &HD(j
)->cp
[k
]; SCpnt
= cpp
->SCpnt
;
1557 if (SCpnt
->device
!= dev
) continue;
1559 if (HD(j
)->cp_stat
[k
] == IN_USE
) return;
1564 if (reorder(j
, cursec
, ihdlr
, il
, n_ready
)) n_ready
= 1;
1566 for (n
= 0; n
< n_ready
; n
++) {
1567 k
= il
[n
]; cpp
= &HD(j
)->cp
[k
]; SCpnt
= cpp
->SCpnt
;
1569 if (wait_on_busy(sh
[j
]->io_port
, MAXLOOP
)) {
1570 scmd_printk(KERN_INFO
, SCpnt
,
1571 "%s, pid %ld, mbox %d, adapter"
1572 " busy, will abort.\n", (ihdlr
? "ihdlr" : "qcomm"),
1573 SCpnt
->serial_number
, k
);
1574 HD(j
)->cp_stat
[k
] = ABORTING
;
1578 outl(H2DEV(cpp
->cp_dma_addr
), sh
[j
]->io_port
+ REG_OGM
);
1579 outb(CMD_OGM_INTR
, sh
[j
]->io_port
+ REG_LCL_INTR
);
1580 HD(j
)->cp_stat
[k
] = IN_USE
;
1585 static irqreturn_t
ihdlr(unsigned int j
)
1587 struct scsi_cmnd
*SCpnt
;
1588 unsigned int i
, k
, c
, status
, tstatus
, reg
, ret
;
1589 struct mscp
*spp
, *cpp
;
1590 int irq
= sh
[j
]->irq
;
1592 /* Check if this board need to be serviced */
1593 if (!((reg
= inb(sh
[j
]->io_port
+ REG_SYS_INTR
)) & IRQ_ASSERTED
)) goto none
;
1597 if (do_trace
) printk("%s: ihdlr, enter, irq %d, count %d.\n", BN(j
), irq
,
1600 /* Check if this board is still busy */
1601 if (wait_on_busy(sh
[j
]->io_port
, 20 * MAXLOOP
)) {
1602 outb(CMD_CLR_INTR
, sh
[j
]->io_port
+ REG_SYS_INTR
);
1603 printk("%s: ihdlr, busy timeout error, irq %d, reg 0x%x, count %d.\n",
1604 BN(j
), irq
, reg
, HD(j
)->iocount
);
1608 ret
= inl(sh
[j
]->io_port
+ REG_ICM
);
1610 /* Clear interrupt pending flag */
1611 outb(CMD_CLR_INTR
, sh
[j
]->io_port
+ REG_SYS_INTR
);
1613 /* Find the mailbox to be serviced on this board */
1614 for (i
= 0; i
< sh
[j
]->can_queue
; i
++)
1615 if (H2DEV(HD(j
)->cp
[i
].cp_dma_addr
) == ret
) break;
1617 if (i
>= sh
[j
]->can_queue
)
1618 panic("%s: ihdlr, invalid mscp bus address %p, cp0 %p.\n", BN(j
),
1619 (void *)ret
, (void *)H2DEV(HD(j
)->cp
[0].cp_dma_addr
));
1621 cpp
= &(HD(j
)->cp
[i
]);
1624 #if defined(DEBUG_GENERATE_ABORTS)
1625 if ((HD(j
)->iocount
> 500) && ((HD(j
)->iocount
% 500) < 3)) goto handled
;
1628 if (HD(j
)->cp_stat
[i
] == IGNORE
) {
1629 HD(j
)->cp_stat
[i
] = FREE
;
1632 else if (HD(j
)->cp_stat
[i
] == LOCKED
) {
1633 HD(j
)->cp_stat
[i
] = FREE
;
1634 printk("%s: ihdlr, mbox %d unlocked, count %d.\n", BN(j
), i
,
1638 else if (HD(j
)->cp_stat
[i
] == FREE
) {
1639 printk("%s: ihdlr, mbox %d is free, count %d.\n", BN(j
), i
,
1643 else if (HD(j
)->cp_stat
[i
] == IN_RESET
)
1644 printk("%s: ihdlr, mbox %d is in reset.\n", BN(j
), i
);
1645 else if (HD(j
)->cp_stat
[i
] != IN_USE
)
1646 panic("%s: ihdlr, mbox %d, invalid cp_stat: %d.\n",
1647 BN(j
), i
, HD(j
)->cp_stat
[i
]);
1649 HD(j
)->cp_stat
[i
] = FREE
;
1652 if (SCpnt
== NULL
) panic("%s: ihdlr, mbox %d, SCpnt == NULL.\n", BN(j
), i
);
1654 if (SCpnt
->host_scribble
== NULL
)
1655 panic("%s: ihdlr, mbox %d, pid %ld, SCpnt %p garbled.\n", BN(j
), i
,
1656 SCpnt
->serial_number
, SCpnt
);
1658 if (*(unsigned int *)SCpnt
->host_scribble
!= i
)
1659 panic("%s: ihdlr, mbox %d, pid %ld, index mismatch %d.\n",
1660 BN(j
), i
, SCpnt
->serial_number
, *(unsigned int *)SCpnt
->host_scribble
);
1664 if (linked_comm
&& SCpnt
->device
->queue_depth
> 2
1665 && TLDEV(SCpnt
->device
->type
))
1666 flush_dev(SCpnt
->device
, blk_rq_pos(SCpnt
->request
), j
, TRUE
);
1668 tstatus
= status_byte(spp
->target_status
);
1670 #if defined(DEBUG_GENERATE_ERRORS)
1671 if ((HD(j
)->iocount
> 500) && ((HD(j
)->iocount
% 200) < 2))
1672 spp
->adapter_status
= 0x01;
1675 switch (spp
->adapter_status
) {
1676 case ASOK
: /* status OK */
1678 /* Forces a reset if a disk drive keeps returning BUSY */
1679 if (tstatus
== BUSY
&& SCpnt
->device
->type
!= TYPE_TAPE
)
1680 status
= DID_ERROR
<< 16;
1682 /* If there was a bus reset, redo operation on each target */
1683 else if (tstatus
!= GOOD
&& SCpnt
->device
->type
== TYPE_DISK
1684 && HD(j
)->target_redo
[scmd_id(SCpnt
)][scmd_channel(SCpnt
)])
1685 status
= DID_BUS_BUSY
<< 16;
1687 /* Works around a flaw in scsi.c */
1688 else if (tstatus
== CHECK_CONDITION
1689 && SCpnt
->device
->type
== TYPE_DISK
1690 && (SCpnt
->sense_buffer
[2] & 0xf) == RECOVERED_ERROR
)
1691 status
= DID_BUS_BUSY
<< 16;
1694 status
= DID_OK
<< 16;
1696 if (tstatus
== GOOD
)
1697 HD(j
)->target_redo
[scmd_id(SCpnt
)][scmd_channel(SCpnt
)] = FALSE
;
1699 if (spp
->target_status
&& SCpnt
->device
->type
== TYPE_DISK
&&
1700 (!(tstatus
== CHECK_CONDITION
&& HD(j
)->iocount
<= 1000 &&
1701 (SCpnt
->sense_buffer
[2] & 0xf) == NOT_READY
)))
1702 scmd_printk(KERN_INFO
, SCpnt
,
1703 "ihdlr, pid %ld, target_status 0x%x, sense key 0x%x.\n",
1704 SCpnt
->serial_number
, spp
->target_status
,
1705 SCpnt
->sense_buffer
[2]);
1707 HD(j
)->target_to
[scmd_id(SCpnt
)][scmd_channel(SCpnt
)] = 0;
1709 if (HD(j
)->last_retried_pid
== SCpnt
->serial_number
) HD(j
)->retries
= 0;
1712 case ASST
: /* Selection Time Out */
1714 if (HD(j
)->target_to
[scmd_id(SCpnt
)][scmd_channel(SCpnt
)] > 1)
1715 status
= DID_ERROR
<< 16;
1717 status
= DID_TIME_OUT
<< 16;
1718 HD(j
)->target_to
[scmd_id(SCpnt
)][scmd_channel(SCpnt
)]++;
1723 /* Perform a limited number of internal retries */
1724 case 0x93: /* Unexpected bus free */
1725 case 0x94: /* Target bus phase sequence failure */
1726 case 0x96: /* Illegal SCSI command */
1727 case 0xa3: /* SCSI bus reset error */
1729 for (c
= 0; c
<= sh
[j
]->max_channel
; c
++)
1730 for (k
= 0; k
< sh
[j
]->max_id
; k
++)
1731 HD(j
)->target_redo
[k
][c
] = TRUE
;
1734 case 0x92: /* Data over/under-run */
1736 if (SCpnt
->device
->type
!= TYPE_TAPE
1737 && HD(j
)->retries
< MAX_INTERNAL_RETRIES
) {
1739 #if defined(DID_SOFT_ERROR)
1740 status
= DID_SOFT_ERROR
<< 16;
1742 status
= DID_BUS_BUSY
<< 16;
1746 HD(j
)->last_retried_pid
= SCpnt
->serial_number
;
1749 status
= DID_ERROR
<< 16;
1752 case 0x01: /* Invalid command */
1753 case 0x02: /* Invalid parameters */
1754 case 0x03: /* Invalid data list */
1755 case 0x84: /* SCSI bus abort error */
1756 case 0x9b: /* Auto request sense error */
1757 case 0x9f: /* Unexpected command complete message error */
1758 case 0xff: /* Invalid parameter in the S/G list */
1760 status
= DID_ERROR
<< 16;
1764 SCpnt
->result
= status
| spp
->target_status
;
1766 #if defined(DEBUG_INTERRUPT)
1767 if (SCpnt
->result
|| do_trace
)
1769 if ((spp
->adapter_status
!= ASOK
&& HD(j
)->iocount
> 1000) ||
1770 (spp
->adapter_status
!= ASOK
&&
1771 spp
->adapter_status
!= ASST
&& HD(j
)->iocount
<= 1000) ||
1772 do_trace
|| msg_byte(spp
->target_status
))
1774 scmd_printk(KERN_INFO
, SCpnt
, "ihdlr, mbox %2d, err 0x%x:%x,"\
1775 " pid %ld, reg 0x%x, count %d.\n",
1776 i
, spp
->adapter_status
, spp
->target_status
, SCpnt
->serial_number
,
1777 reg
, HD(j
)->iocount
);
1781 /* Set the command state to inactive */
1782 SCpnt
->host_scribble
= NULL
;
1784 SCpnt
->scsi_done(SCpnt
);
1786 if (do_trace
) printk("%s: ihdlr, exit, irq %d, count %d.\n", BN(j
), irq
,
1795 static irqreturn_t
do_interrupt_handler(int irq
, void *shap
) {
1797 unsigned long spin_flags
;
1800 /* Check if the interrupt must be processed by this handler */
1801 if ((j
= (unsigned int)((char *)shap
- sha
)) >= num_boards
) return IRQ_NONE
;
1803 spin_lock_irqsave(sh
[j
]->host_lock
, spin_flags
);
1805 spin_unlock_irqrestore(sh
[j
]->host_lock
, spin_flags
);
1809 static int u14_34f_release(struct Scsi_Host
*shpnt
) {
1812 for (j
= 0; sh
[j
] != NULL
&& sh
[j
] != shpnt
; j
++);
1815 panic("%s: release, invalid Scsi_Host pointer.\n", driver_name
);
1817 for (i
= 0; i
< sh
[j
]->can_queue
; i
++)
1818 kfree((&HD(j
)->cp
[i
])->sglist
);
1820 for (i
= 0; i
< sh
[j
]->can_queue
; i
++)
1821 pci_unmap_single(HD(j
)->pdev
, HD(j
)->cp
[i
].cp_dma_addr
,
1822 sizeof(struct mscp
), PCI_DMA_BIDIRECTIONAL
);
1824 free_irq(sh
[j
]->irq
, &sha
[j
]);
1826 if (sh
[j
]->dma_channel
!= NO_DMA
)
1827 free_dma(sh
[j
]->dma_channel
);
1829 release_region(sh
[j
]->io_port
, sh
[j
]->n_io_port
);
1830 scsi_unregister(sh
[j
]);
1834 #include "scsi_module.c"
1837 __setup("u14-34f=", option_setup
);
1838 #endif /* end MODULE */