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[SCSI] arm: convert to accessors and !use_sg cleanup
[deliverable/linux.git] / 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 2.6.x supported *
31 * *
32 ************************************************************************/
33
34 /* All GDT Disk Array Controllers are fully supported by this driver.
35 * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
36 * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
37 * list of all controller types.
38 *
39 * If you have one or more GDT3000/3020 EISA controllers with
40 * controller BIOS disabled, you have to set the IRQ values with the
41 * command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
42 * the IRQ values for the EISA controllers.
43 *
44 * After the optional list of IRQ values, other possible
45 * command line options are:
46 * disable:Y disable driver
47 * disable:N enable driver
48 * reserve_mode:0 reserve no drives for the raw service
49 * reserve_mode:1 reserve all not init., removable drives
50 * reserve_mode:2 reserve all not init. drives
51 * reserve_list:h,b,t,l,h,b,t,l,... reserve particular drive(s) with
52 * h- controller no., b- channel no.,
53 * t- target ID, l- LUN
54 * reverse_scan:Y reverse scan order for PCI controllers
55 * reverse_scan:N scan PCI controllers like BIOS
56 * max_ids:x x - target ID count per channel (1..MAXID)
57 * rescan:Y rescan all channels/IDs
58 * rescan:N use all devices found until now
59 * hdr_channel:x x - number of virtual bus for host drives
60 * shared_access:Y disable driver reserve/release protocol to
61 * access a shared resource from several nodes,
62 * appropriate controller firmware required
63 * shared_access:N enable driver reserve/release protocol
64 * probe_eisa_isa:Y scan for EISA/ISA controllers
65 * probe_eisa_isa:N do not scan for EISA/ISA controllers
66 * force_dma32:Y use only 32 bit DMA mode
67 * force_dma32:N use 64 bit DMA mode, if supported
68 *
69 * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
70 * max_ids:127,rescan:N,hdr_channel:0,
71 * shared_access:Y,probe_eisa_isa:N,force_dma32:N".
72 * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
73 *
74 * When loading the gdth driver as a module, the same options are available.
75 * You can set the IRQs with "IRQ=...". However, the syntax to specify the
76 * options changes slightly. You must replace all ',' between options
77 * with ' ' and all ':' with '=' and you must use
78 * '1' in place of 'Y' and '0' in place of 'N'.
79 *
80 * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
81 * max_ids=127 rescan=0 hdr_channel=0 shared_access=0
82 * probe_eisa_isa=0 force_dma32=0"
83 * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
84 */
85
86 /* The meaning of the Scsi_Pointer members in this driver is as follows:
87 * ptr: Chaining
88 * this_residual: gdth_bufflen
89 * buffer: gdth_sglist
90 * dma_handle: unused
91 * buffers_residual: gdth_sg_count
92 * Status: unused
93 * Message: unused
94 * have_data_in: unused
95 * sent_command: unused
96 * phase: unused
97 */
98
99
100 /* interrupt coalescing */
101 /* #define INT_COAL */
102
103 /* statistics */
104 #define GDTH_STATISTICS
105
106 #include <linux/module.h>
107
108 #include <linux/version.h>
109 #include <linux/kernel.h>
110 #include <linux/types.h>
111 #include <linux/pci.h>
112 #include <linux/string.h>
113 #include <linux/ctype.h>
114 #include <linux/ioport.h>
115 #include <linux/delay.h>
116 #include <linux/interrupt.h>
117 #include <linux/in.h>
118 #include <linux/proc_fs.h>
119 #include <linux/time.h>
120 #include <linux/timer.h>
121 #include <linux/dma-mapping.h>
122 #include <linux/list.h>
123
124 #ifdef GDTH_RTC
125 #include <linux/mc146818rtc.h>
126 #endif
127 #include <linux/reboot.h>
128
129 #include <asm/dma.h>
130 #include <asm/system.h>
131 #include <asm/io.h>
132 #include <asm/uaccess.h>
133 #include <linux/spinlock.h>
134 #include <linux/blkdev.h>
135 #include <linux/scatterlist.h>
136
137 #include "scsi.h"
138 #include <scsi/scsi_host.h>
139 #include "gdth.h"
140
141 static void gdth_delay(int milliseconds);
142 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
143 static irqreturn_t gdth_interrupt(int irq, void *dev_id);
144 static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
145 int gdth_from_wait, int* pIndex);
146 static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
147 Scsi_Cmnd *scp);
148 static int gdth_async_event(gdth_ha_str *ha);
149 static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
150
151 static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority);
152 static void gdth_next(gdth_ha_str *ha);
153 static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b);
154 static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
155 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
156 ushort idx, gdth_evt_data *evt);
157 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
158 static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
159 gdth_evt_str *estr);
160 static void gdth_clear_events(void);
161
162 static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
163 char *buffer, ushort count, int to_buffer);
164 static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
165 static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive);
166
167 static void gdth_enable_int(gdth_ha_str *ha);
168 static int gdth_test_busy(gdth_ha_str *ha);
169 static int gdth_get_cmd_index(gdth_ha_str *ha);
170 static void gdth_release_event(gdth_ha_str *ha);
171 static int gdth_wait(gdth_ha_str *ha, int index,ulong32 time);
172 static int gdth_internal_cmd(gdth_ha_str *ha, unchar service, ushort opcode,
173 ulong32 p1, ulong64 p2,ulong64 p3);
174 static int gdth_search_drives(gdth_ha_str *ha);
175 static int gdth_analyse_hdrive(gdth_ha_str *ha, ushort hdrive);
176
177 static const char *gdth_ctr_name(gdth_ha_str *ha);
178
179 static int gdth_open(struct inode *inode, struct file *filep);
180 static int gdth_close(struct inode *inode, struct file *filep);
181 static int gdth_ioctl(struct inode *inode, struct file *filep,
182 unsigned int cmd, unsigned long arg);
183
184 static void gdth_flush(gdth_ha_str *ha);
185 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf);
186 static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *));
187 static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
188 struct gdth_cmndinfo *cmndinfo);
189 static void gdth_scsi_done(struct scsi_cmnd *scp);
190
191 #ifdef DEBUG_GDTH
192 static unchar DebugState = DEBUG_GDTH;
193
194 #ifdef __SERIAL__
195 #define MAX_SERBUF 160
196 static void ser_init(void);
197 static void ser_puts(char *str);
198 static void ser_putc(char c);
199 static int ser_printk(const char *fmt, ...);
200 static char strbuf[MAX_SERBUF+1];
201 #ifdef __COM2__
202 #define COM_BASE 0x2f8
203 #else
204 #define COM_BASE 0x3f8
205 #endif
206 static void ser_init()
207 {
208 unsigned port=COM_BASE;
209
210 outb(0x80,port+3);
211 outb(0,port+1);
212 /* 19200 Baud, if 9600: outb(12,port) */
213 outb(6, port);
214 outb(3,port+3);
215 outb(0,port+1);
216 /*
217 ser_putc('I');
218 ser_putc(' ');
219 */
220 }
221
222 static void ser_puts(char *str)
223 {
224 char *ptr;
225
226 ser_init();
227 for (ptr=str;*ptr;++ptr)
228 ser_putc(*ptr);
229 }
230
231 static void ser_putc(char c)
232 {
233 unsigned port=COM_BASE;
234
235 while ((inb(port+5) & 0x20)==0);
236 outb(c,port);
237 if (c==0x0a)
238 {
239 while ((inb(port+5) & 0x20)==0);
240 outb(0x0d,port);
241 }
242 }
243
244 static int ser_printk(const char *fmt, ...)
245 {
246 va_list args;
247 int i;
248
249 va_start(args,fmt);
250 i = vsprintf(strbuf,fmt,args);
251 ser_puts(strbuf);
252 va_end(args);
253 return i;
254 }
255
256 #define TRACE(a) {if (DebugState==1) {ser_printk a;}}
257 #define TRACE2(a) {if (DebugState==1 || DebugState==2) {ser_printk a;}}
258 #define TRACE3(a) {if (DebugState!=0) {ser_printk a;}}
259
260 #else /* !__SERIAL__ */
261 #define TRACE(a) {if (DebugState==1) {printk a;}}
262 #define TRACE2(a) {if (DebugState==1 || DebugState==2) {printk a;}}
263 #define TRACE3(a) {if (DebugState!=0) {printk a;}}
264 #endif
265
266 #else /* !DEBUG */
267 #define TRACE(a)
268 #define TRACE2(a)
269 #define TRACE3(a)
270 #endif
271
272 #ifdef GDTH_STATISTICS
273 static ulong32 max_rq=0, max_index=0, max_sg=0;
274 #ifdef INT_COAL
275 static ulong32 max_int_coal=0;
276 #endif
277 static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
278 static struct timer_list gdth_timer;
279 #endif
280
281 #define PTR2USHORT(a) (ushort)(ulong)(a)
282 #define GDTOFFSOF(a,b) (size_t)&(((a*)0)->b)
283 #define INDEX_OK(i,t) ((i)<ARRAY_SIZE(t))
284
285 #define BUS_L2P(a,b) ((b)>(a)->virt_bus ? (b-1):(b))
286
287 #ifdef CONFIG_ISA
288 static unchar gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */
289 #endif
290 #if defined(CONFIG_EISA) || defined(CONFIG_ISA)
291 static unchar gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */
292 #endif
293 static unchar gdth_polling; /* polling if TRUE */
294 static int gdth_ctr_count = 0; /* controller count */
295 static LIST_HEAD(gdth_instances); /* controller list */
296 static unchar gdth_write_through = FALSE; /* write through */
297 static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */
298 static int elastidx;
299 static int eoldidx;
300 static int major;
301
302 #define DIN 1 /* IN data direction */
303 #define DOU 2 /* OUT data direction */
304 #define DNO DIN /* no data transfer */
305 #define DUN DIN /* unknown data direction */
306 static unchar gdth_direction_tab[0x100] = {
307 DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
308 DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
309 DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
310 DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
311 DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
312 DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
313 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
314 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
315 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
316 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
317 DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
318 DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
319 DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
320 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
321 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
322 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
323 };
324
325 /* LILO and modprobe/insmod parameters */
326 /* IRQ list for GDT3000/3020 EISA controllers */
327 static int irq[MAXHA] __initdata =
328 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
329 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
330 /* disable driver flag */
331 static int disable __initdata = 0;
332 /* reserve flag */
333 static int reserve_mode = 1;
334 /* reserve list */
335 static int reserve_list[MAX_RES_ARGS] =
336 {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
337 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
338 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
339 /* scan order for PCI controllers */
340 static int reverse_scan = 0;
341 /* virtual channel for the host drives */
342 static int hdr_channel = 0;
343 /* max. IDs per channel */
344 static int max_ids = MAXID;
345 /* rescan all IDs */
346 static int rescan = 0;
347 /* shared access */
348 static int shared_access = 1;
349 /* enable support for EISA and ISA controllers */
350 static int probe_eisa_isa = 0;
351 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
352 static int force_dma32 = 0;
353
354 /* parameters for modprobe/insmod */
355 module_param_array(irq, int, NULL, 0);
356 module_param(disable, int, 0);
357 module_param(reserve_mode, int, 0);
358 module_param_array(reserve_list, int, NULL, 0);
359 module_param(reverse_scan, int, 0);
360 module_param(hdr_channel, int, 0);
361 module_param(max_ids, int, 0);
362 module_param(rescan, int, 0);
363 module_param(shared_access, int, 0);
364 module_param(probe_eisa_isa, int, 0);
365 module_param(force_dma32, int, 0);
366 MODULE_AUTHOR("Achim Leubner");
367 MODULE_LICENSE("GPL");
368
369 /* ioctl interface */
370 static const struct file_operations gdth_fops = {
371 .ioctl = gdth_ioctl,
372 .open = gdth_open,
373 .release = gdth_close,
374 };
375
376 /*
377 * gdth scsi_command access wrappers.
378 * below 6 functions are used throughout the driver to access scsi_command's
379 * io parameters. The reason we do not use the regular accessors from
380 * scsi_cmnd.h is because of gdth_execute(). Since it is unrecommended for
381 * llds to directly set scsi_cmnd's IO members. This driver will use SCp
382 * members for IO parameters, and will copy scsi_cmnd's members to Scp
383 * members in queuecommand. For internal commands through gdth_execute()
384 * SCp's members will be set directly.
385 */
386 static inline unsigned gdth_bufflen(struct scsi_cmnd *cmd)
387 {
388 return (unsigned)cmd->SCp.this_residual;
389 }
390
391 static inline void gdth_set_bufflen(struct scsi_cmnd *cmd, unsigned bufflen)
392 {
393 cmd->SCp.this_residual = bufflen;
394 }
395
396 static inline unsigned gdth_sg_count(struct scsi_cmnd *cmd)
397 {
398 return (unsigned)cmd->SCp.buffers_residual;
399 }
400
401 static inline void gdth_set_sg_count(struct scsi_cmnd *cmd, unsigned sg_count)
402 {
403 cmd->SCp.buffers_residual = sg_count;
404 }
405
406 static inline struct scatterlist *gdth_sglist(struct scsi_cmnd *cmd)
407 {
408 return cmd->SCp.buffer;
409 }
410
411 static inline void gdth_set_sglist(struct scsi_cmnd *cmd,
412 struct scatterlist *sglist)
413 {
414 cmd->SCp.buffer = sglist;
415 }
416
417 #include "gdth_proc.h"
418 #include "gdth_proc.c"
419
420 /* notifier block to get a notify on system shutdown/halt/reboot */
421 static struct notifier_block gdth_notifier = {
422 gdth_halt, NULL, 0
423 };
424 static int notifier_disabled = 0;
425
426 static gdth_ha_str *gdth_find_ha(int hanum)
427 {
428 gdth_ha_str *ha;
429
430 list_for_each_entry(ha, &gdth_instances, list)
431 if (hanum == ha->hanum)
432 return ha;
433
434 return NULL;
435 }
436
437 static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha)
438 {
439 struct gdth_cmndinfo *priv = NULL;
440 ulong flags;
441 int i;
442
443 spin_lock_irqsave(&ha->smp_lock, flags);
444
445 for (i=0; i<GDTH_MAXCMDS; ++i) {
446 if (ha->cmndinfo[i].index == 0) {
447 priv = &ha->cmndinfo[i];
448 priv->index = i+1;
449 memset(priv, 0, sizeof(*priv));
450 break;
451 }
452 }
453
454 spin_unlock_irqrestore(&ha->smp_lock, flags);
455
456 return priv;
457 }
458
459 static void gdth_put_cmndinfo(struct gdth_cmndinfo *priv)
460 {
461 BUG_ON(!priv);
462 priv->index = 0;
463 }
464
465 static void gdth_delay(int milliseconds)
466 {
467 if (milliseconds == 0) {
468 udelay(1);
469 } else {
470 mdelay(milliseconds);
471 }
472 }
473
474 static void gdth_scsi_done(struct scsi_cmnd *scp)
475 {
476 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
477 int internal_command = cmndinfo->internal_command;
478
479 TRACE2(("gdth_scsi_done()\n"));
480
481 gdth_put_cmndinfo(cmndinfo);
482 scp->host_scribble = NULL;
483
484 if (internal_command)
485 complete((struct completion *)scp->request);
486 else
487 scp->scsi_done(scp);
488 }
489
490 int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
491 int timeout, u32 *info)
492 {
493 gdth_ha_str *ha = shost_priv(sdev->host);
494 Scsi_Cmnd *scp;
495 struct gdth_cmndinfo cmndinfo;
496 struct scatterlist one_sg;
497 DECLARE_COMPLETION_ONSTACK(wait);
498 int rval;
499
500 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
501 if (!scp)
502 return -ENOMEM;
503
504 scp->device = sdev;
505 memset(&cmndinfo, 0, sizeof(cmndinfo));
506
507 /* use request field to save the ptr. to completion struct. */
508 scp->request = (struct request *)&wait;
509 scp->timeout_per_command = timeout*HZ;
510 sg_init_one(&one_sg, gdtcmd, sizeof(*gdtcmd));
511 gdth_set_sglist(scp, &one_sg);
512 gdth_set_sg_count(scp, 1);
513 gdth_set_bufflen(scp, sizeof(*gdtcmd));
514 scp->cmd_len = 12;
515 memcpy(scp->cmnd, cmnd, 12);
516 cmndinfo.priority = IOCTL_PRI;
517 cmndinfo.internal_command = 1;
518
519 TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0]));
520 __gdth_queuecommand(ha, scp, &cmndinfo);
521
522 wait_for_completion(&wait);
523
524 rval = cmndinfo.status;
525 if (info)
526 *info = cmndinfo.info;
527 kfree(scp);
528 return rval;
529 }
530
531 int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
532 int timeout, u32 *info)
533 {
534 struct scsi_device *sdev = scsi_get_host_dev(shost);
535 int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
536
537 scsi_free_host_dev(sdev);
538 return rval;
539 }
540
541 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
542 {
543 *cyls = size /HEADS/SECS;
544 if (*cyls <= MAXCYLS) {
545 *heads = HEADS;
546 *secs = SECS;
547 } else { /* too high for 64*32 */
548 *cyls = size /MEDHEADS/MEDSECS;
549 if (*cyls <= MAXCYLS) {
550 *heads = MEDHEADS;
551 *secs = MEDSECS;
552 } else { /* too high for 127*63 */
553 *cyls = size /BIGHEADS/BIGSECS;
554 *heads = BIGHEADS;
555 *secs = BIGSECS;
556 }
557 }
558 }
559
560 /* controller search and initialization functions */
561 #ifdef CONFIG_EISA
562 static int __init gdth_search_eisa(ushort eisa_adr)
563 {
564 ulong32 id;
565
566 TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
567 id = inl(eisa_adr+ID0REG);
568 if (id == GDT3A_ID || id == GDT3B_ID) { /* GDT3000A or GDT3000B */
569 if ((inb(eisa_adr+EISAREG) & 8) == 0)
570 return 0; /* not EISA configured */
571 return 1;
572 }
573 if (id == GDT3_ID) /* GDT3000 */
574 return 1;
575
576 return 0;
577 }
578 #endif /* CONFIG_EISA */
579
580 #ifdef CONFIG_ISA
581 static int __init gdth_search_isa(ulong32 bios_adr)
582 {
583 void __iomem *addr;
584 ulong32 id;
585
586 TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
587 if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
588 id = readl(addr);
589 iounmap(addr);
590 if (id == GDT2_ID) /* GDT2000 */
591 return 1;
592 }
593 return 0;
594 }
595 #endif /* CONFIG_ISA */
596
597 #ifdef CONFIG_PCI
598 static void gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
599 ushort vendor, ushort dev);
600
601 static int __init gdth_search_pci(gdth_pci_str *pcistr)
602 {
603 ushort device, cnt;
604
605 TRACE(("gdth_search_pci()\n"));
606
607 cnt = 0;
608 for (device = 0; device <= PCI_DEVICE_ID_VORTEX_GDT6555; ++device)
609 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
610 for (device = PCI_DEVICE_ID_VORTEX_GDT6x17RP;
611 device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP; ++device)
612 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX, device);
613 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
614 PCI_DEVICE_ID_VORTEX_GDTNEWRX);
615 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_VORTEX,
616 PCI_DEVICE_ID_VORTEX_GDTNEWRX2);
617 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
618 PCI_DEVICE_ID_INTEL_SRC);
619 gdth_search_dev(pcistr, &cnt, PCI_VENDOR_ID_INTEL,
620 PCI_DEVICE_ID_INTEL_SRC_XSCALE);
621 return cnt;
622 }
623
624 /* Vortex only makes RAID controllers.
625 * We do not really want to specify all 550 ids here, so wildcard match.
626 */
627 static struct pci_device_id gdthtable[] __maybe_unused = {
628 {PCI_VENDOR_ID_VORTEX,PCI_ANY_ID,PCI_ANY_ID, PCI_ANY_ID},
629 {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC,PCI_ANY_ID,PCI_ANY_ID},
630 {PCI_VENDOR_ID_INTEL,PCI_DEVICE_ID_INTEL_SRC_XSCALE,PCI_ANY_ID,PCI_ANY_ID},
631 {0}
632 };
633 MODULE_DEVICE_TABLE(pci,gdthtable);
634
635 static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt,
636 ushort vendor, ushort device)
637 {
638 ulong base0, base1, base2;
639 struct pci_dev *pdev;
640
641 TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
642 *cnt, vendor, device));
643
644 pdev = NULL;
645 while ((pdev = pci_find_device(vendor, device, pdev))
646 != NULL) {
647 if (pci_enable_device(pdev))
648 continue;
649 if (*cnt >= MAXHA)
650 return;
651 /* GDT PCI controller found, resources are already in pdev */
652 pcistr[*cnt].pdev = pdev;
653 pcistr[*cnt].irq = pdev->irq;
654 base0 = pci_resource_flags(pdev, 0);
655 base1 = pci_resource_flags(pdev, 1);
656 base2 = pci_resource_flags(pdev, 2);
657 if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B || /* GDT6000/B */
658 device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) { /* MPR */
659 if (!(base0 & IORESOURCE_MEM))
660 continue;
661 pcistr[*cnt].dpmem = pci_resource_start(pdev, 0);
662 } else { /* GDT6110, GDT6120, .. */
663 if (!(base0 & IORESOURCE_MEM) ||
664 !(base2 & IORESOURCE_MEM) ||
665 !(base1 & IORESOURCE_IO))
666 continue;
667 pcistr[*cnt].dpmem = pci_resource_start(pdev, 2);
668 pcistr[*cnt].io_mm = pci_resource_start(pdev, 0);
669 pcistr[*cnt].io = pci_resource_start(pdev, 1);
670 }
671 TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
672 pcistr[*cnt].pdev->bus->number,
673 PCI_SLOT(pcistr[*cnt].pdev->devfn),
674 pcistr[*cnt].irq, pcistr[*cnt].dpmem));
675 (*cnt)++;
676 }
677 }
678
679 static void __init gdth_sort_pci(gdth_pci_str *pcistr, int cnt)
680 {
681 gdth_pci_str temp;
682 int i, changed;
683
684 TRACE(("gdth_sort_pci() cnt %d\n",cnt));
685 if (cnt == 0)
686 return;
687
688 do {
689 changed = FALSE;
690 for (i = 0; i < cnt-1; ++i) {
691 if (!reverse_scan) {
692 if ((pcistr[i].pdev->bus->number > pcistr[i+1].pdev->bus->number) ||
693 (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
694 PCI_SLOT(pcistr[i].pdev->devfn) >
695 PCI_SLOT(pcistr[i+1].pdev->devfn))) {
696 temp = pcistr[i];
697 pcistr[i] = pcistr[i+1];
698 pcistr[i+1] = temp;
699 changed = TRUE;
700 }
701 } else {
702 if ((pcistr[i].pdev->bus->number < pcistr[i+1].pdev->bus->number) ||
703 (pcistr[i].pdev->bus->number == pcistr[i+1].pdev->bus->number &&
704 PCI_SLOT(pcistr[i].pdev->devfn) <
705 PCI_SLOT(pcistr[i+1].pdev->devfn))) {
706 temp = pcistr[i];
707 pcistr[i] = pcistr[i+1];
708 pcistr[i+1] = temp;
709 changed = TRUE;
710 }
711 }
712 }
713 } while (changed);
714 }
715 #endif /* CONFIG_PCI */
716
717 #ifdef CONFIG_EISA
718 static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
719 {
720 ulong32 retries,id;
721 unchar prot_ver,eisacf,i,irq_found;
722
723 TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
724
725 /* disable board interrupts, deinitialize services */
726 outb(0xff,eisa_adr+EDOORREG);
727 outb(0x00,eisa_adr+EDENABREG);
728 outb(0x00,eisa_adr+EINTENABREG);
729
730 outb(0xff,eisa_adr+LDOORREG);
731 retries = INIT_RETRIES;
732 gdth_delay(20);
733 while (inb(eisa_adr+EDOORREG) != 0xff) {
734 if (--retries == 0) {
735 printk("GDT-EISA: Initialization error (DEINIT failed)\n");
736 return 0;
737 }
738 gdth_delay(1);
739 TRACE2(("wait for DEINIT: retries=%d\n",retries));
740 }
741 prot_ver = inb(eisa_adr+MAILBOXREG);
742 outb(0xff,eisa_adr+EDOORREG);
743 if (prot_ver != PROTOCOL_VERSION) {
744 printk("GDT-EISA: Illegal protocol version\n");
745 return 0;
746 }
747 ha->bmic = eisa_adr;
748 ha->brd_phys = (ulong32)eisa_adr >> 12;
749
750 outl(0,eisa_adr+MAILBOXREG);
751 outl(0,eisa_adr+MAILBOXREG+4);
752 outl(0,eisa_adr+MAILBOXREG+8);
753 outl(0,eisa_adr+MAILBOXREG+12);
754
755 /* detect IRQ */
756 if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
757 ha->oem_id = OEM_ID_ICP;
758 ha->type = GDT_EISA;
759 ha->stype = id;
760 outl(1,eisa_adr+MAILBOXREG+8);
761 outb(0xfe,eisa_adr+LDOORREG);
762 retries = INIT_RETRIES;
763 gdth_delay(20);
764 while (inb(eisa_adr+EDOORREG) != 0xfe) {
765 if (--retries == 0) {
766 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
767 return 0;
768 }
769 gdth_delay(1);
770 }
771 ha->irq = inb(eisa_adr+MAILBOXREG);
772 outb(0xff,eisa_adr+EDOORREG);
773 TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
774 /* check the result */
775 if (ha->irq == 0) {
776 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
777 for (i = 0, irq_found = FALSE;
778 i < MAXHA && irq[i] != 0xff; ++i) {
779 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
780 irq_found = TRUE;
781 break;
782 }
783 }
784 if (irq_found) {
785 ha->irq = irq[i];
786 irq[i] = 0;
787 printk("GDT-EISA: Can not detect controller IRQ,\n");
788 printk("Use IRQ setting from command line (IRQ = %d)\n",
789 ha->irq);
790 } else {
791 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
792 printk("the controller BIOS or use command line parameters\n");
793 return 0;
794 }
795 }
796 } else {
797 eisacf = inb(eisa_adr+EISAREG) & 7;
798 if (eisacf > 4) /* level triggered */
799 eisacf -= 4;
800 ha->irq = gdth_irq_tab[eisacf];
801 ha->oem_id = OEM_ID_ICP;
802 ha->type = GDT_EISA;
803 ha->stype = id;
804 }
805
806 ha->dma64_support = 0;
807 return 1;
808 }
809 #endif /* CONFIG_EISA */
810
811 #ifdef CONFIG_ISA
812 static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
813 {
814 register gdt2_dpram_str __iomem *dp2_ptr;
815 int i;
816 unchar irq_drq,prot_ver;
817 ulong32 retries;
818
819 TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
820
821 ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
822 if (ha->brd == NULL) {
823 printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
824 return 0;
825 }
826 dp2_ptr = ha->brd;
827 writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
828 /* reset interface area */
829 memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
830 if (readl(&dp2_ptr->u) != 0) {
831 printk("GDT-ISA: Initialization error (DPMEM write error)\n");
832 iounmap(ha->brd);
833 return 0;
834 }
835
836 /* disable board interrupts, read DRQ and IRQ */
837 writeb(0xff, &dp2_ptr->io.irqdel);
838 writeb(0x00, &dp2_ptr->io.irqen);
839 writeb(0x00, &dp2_ptr->u.ic.S_Status);
840 writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
841
842 irq_drq = readb(&dp2_ptr->io.rq);
843 for (i=0; i<3; ++i) {
844 if ((irq_drq & 1)==0)
845 break;
846 irq_drq >>= 1;
847 }
848 ha->drq = gdth_drq_tab[i];
849
850 irq_drq = readb(&dp2_ptr->io.rq) >> 3;
851 for (i=1; i<5; ++i) {
852 if ((irq_drq & 1)==0)
853 break;
854 irq_drq >>= 1;
855 }
856 ha->irq = gdth_irq_tab[i];
857
858 /* deinitialize services */
859 writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
860 writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
861 writeb(0, &dp2_ptr->io.event);
862 retries = INIT_RETRIES;
863 gdth_delay(20);
864 while (readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
865 if (--retries == 0) {
866 printk("GDT-ISA: Initialization error (DEINIT failed)\n");
867 iounmap(ha->brd);
868 return 0;
869 }
870 gdth_delay(1);
871 }
872 prot_ver = (unchar)readl(&dp2_ptr->u.ic.S_Info[0]);
873 writeb(0, &dp2_ptr->u.ic.Status);
874 writeb(0xff, &dp2_ptr->io.irqdel);
875 if (prot_ver != PROTOCOL_VERSION) {
876 printk("GDT-ISA: Illegal protocol version\n");
877 iounmap(ha->brd);
878 return 0;
879 }
880
881 ha->oem_id = OEM_ID_ICP;
882 ha->type = GDT_ISA;
883 ha->ic_all_size = sizeof(dp2_ptr->u);
884 ha->stype= GDT2_ID;
885 ha->brd_phys = bios_adr >> 4;
886
887 /* special request to controller BIOS */
888 writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
889 writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
890 writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
891 writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
892 writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
893 writeb(0, &dp2_ptr->io.event);
894 retries = INIT_RETRIES;
895 gdth_delay(20);
896 while (readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
897 if (--retries == 0) {
898 printk("GDT-ISA: Initialization error\n");
899 iounmap(ha->brd);
900 return 0;
901 }
902 gdth_delay(1);
903 }
904 writeb(0, &dp2_ptr->u.ic.Status);
905 writeb(0xff, &dp2_ptr->io.irqdel);
906
907 ha->dma64_support = 0;
908 return 1;
909 }
910 #endif /* CONFIG_ISA */
911
912 #ifdef CONFIG_PCI
913 static int __init gdth_init_pci(gdth_pci_str *pcistr,gdth_ha_str *ha)
914 {
915 register gdt6_dpram_str __iomem *dp6_ptr;
916 register gdt6c_dpram_str __iomem *dp6c_ptr;
917 register gdt6m_dpram_str __iomem *dp6m_ptr;
918 ulong32 retries;
919 unchar prot_ver;
920 ushort command;
921 int i, found = FALSE;
922
923 TRACE(("gdth_init_pci()\n"));
924
925 if (pcistr->pdev->vendor == PCI_VENDOR_ID_INTEL)
926 ha->oem_id = OEM_ID_INTEL;
927 else
928 ha->oem_id = OEM_ID_ICP;
929 ha->brd_phys = (pcistr->pdev->bus->number << 8) | (pcistr->pdev->devfn & 0xf8);
930 ha->stype = (ulong32)pcistr->pdev->device;
931 ha->irq = pcistr->irq;
932 ha->pdev = pcistr->pdev;
933
934 if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) { /* GDT6000/B */
935 TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
936 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
937 if (ha->brd == NULL) {
938 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
939 return 0;
940 }
941 /* check and reset interface area */
942 dp6_ptr = ha->brd;
943 writel(DPMEM_MAGIC, &dp6_ptr->u);
944 if (readl(&dp6_ptr->u) != DPMEM_MAGIC) {
945 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
946 pcistr->dpmem);
947 found = FALSE;
948 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
949 iounmap(ha->brd);
950 ha->brd = ioremap(i, sizeof(ushort));
951 if (ha->brd == NULL) {
952 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
953 return 0;
954 }
955 if (readw(ha->brd) != 0xffff) {
956 TRACE2(("init_pci_old() address 0x%x busy\n", i));
957 continue;
958 }
959 iounmap(ha->brd);
960 pci_write_config_dword(pcistr->pdev,
961 PCI_BASE_ADDRESS_0, i);
962 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
963 if (ha->brd == NULL) {
964 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
965 return 0;
966 }
967 dp6_ptr = ha->brd;
968 writel(DPMEM_MAGIC, &dp6_ptr->u);
969 if (readl(&dp6_ptr->u) == DPMEM_MAGIC) {
970 printk("GDT-PCI: Use free address at 0x%x\n", i);
971 found = TRUE;
972 break;
973 }
974 }
975 if (!found) {
976 printk("GDT-PCI: No free address found!\n");
977 iounmap(ha->brd);
978 return 0;
979 }
980 }
981 memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
982 if (readl(&dp6_ptr->u) != 0) {
983 printk("GDT-PCI: Initialization error (DPMEM write error)\n");
984 iounmap(ha->brd);
985 return 0;
986 }
987
988 /* disable board interrupts, deinit services */
989 writeb(0xff, &dp6_ptr->io.irqdel);
990 writeb(0x00, &dp6_ptr->io.irqen);
991 writeb(0x00, &dp6_ptr->u.ic.S_Status);
992 writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
993
994 writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
995 writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
996 writeb(0, &dp6_ptr->io.event);
997 retries = INIT_RETRIES;
998 gdth_delay(20);
999 while (readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1000 if (--retries == 0) {
1001 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1002 iounmap(ha->brd);
1003 return 0;
1004 }
1005 gdth_delay(1);
1006 }
1007 prot_ver = (unchar)readl(&dp6_ptr->u.ic.S_Info[0]);
1008 writeb(0, &dp6_ptr->u.ic.S_Status);
1009 writeb(0xff, &dp6_ptr->io.irqdel);
1010 if (prot_ver != PROTOCOL_VERSION) {
1011 printk("GDT-PCI: Illegal protocol version\n");
1012 iounmap(ha->brd);
1013 return 0;
1014 }
1015
1016 ha->type = GDT_PCI;
1017 ha->ic_all_size = sizeof(dp6_ptr->u);
1018
1019 /* special command to controller BIOS */
1020 writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
1021 writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
1022 writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
1023 writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
1024 writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
1025 writeb(0, &dp6_ptr->io.event);
1026 retries = INIT_RETRIES;
1027 gdth_delay(20);
1028 while (readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1029 if (--retries == 0) {
1030 printk("GDT-PCI: Initialization error\n");
1031 iounmap(ha->brd);
1032 return 0;
1033 }
1034 gdth_delay(1);
1035 }
1036 writeb(0, &dp6_ptr->u.ic.S_Status);
1037 writeb(0xff, &dp6_ptr->io.irqdel);
1038
1039 ha->dma64_support = 0;
1040
1041 } else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1042 ha->plx = (gdt6c_plx_regs *)pcistr->io;
1043 TRACE2(("init_pci_new() dpmem %lx irq %d\n",
1044 pcistr->dpmem,ha->irq));
1045 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
1046 if (ha->brd == NULL) {
1047 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1048 iounmap(ha->brd);
1049 return 0;
1050 }
1051 /* check and reset interface area */
1052 dp6c_ptr = ha->brd;
1053 writel(DPMEM_MAGIC, &dp6c_ptr->u);
1054 if (readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1055 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1056 pcistr->dpmem);
1057 found = FALSE;
1058 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1059 iounmap(ha->brd);
1060 ha->brd = ioremap(i, sizeof(ushort));
1061 if (ha->brd == NULL) {
1062 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1063 return 0;
1064 }
1065 if (readw(ha->brd) != 0xffff) {
1066 TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1067 continue;
1068 }
1069 iounmap(ha->brd);
1070 pci_write_config_dword(pcistr->pdev,
1071 PCI_BASE_ADDRESS_2, i);
1072 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1073 if (ha->brd == NULL) {
1074 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1075 return 0;
1076 }
1077 dp6c_ptr = ha->brd;
1078 writel(DPMEM_MAGIC, &dp6c_ptr->u);
1079 if (readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1080 printk("GDT-PCI: Use free address at 0x%x\n", i);
1081 found = TRUE;
1082 break;
1083 }
1084 }
1085 if (!found) {
1086 printk("GDT-PCI: No free address found!\n");
1087 iounmap(ha->brd);
1088 return 0;
1089 }
1090 }
1091 memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
1092 if (readl(&dp6c_ptr->u) != 0) {
1093 printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1094 iounmap(ha->brd);
1095 return 0;
1096 }
1097
1098 /* disable board interrupts, deinit services */
1099 outb(0x00,PTR2USHORT(&ha->plx->control1));
1100 outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1101
1102 writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1103 writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1104
1105 writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1106 writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1107
1108 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1109
1110 retries = INIT_RETRIES;
1111 gdth_delay(20);
1112 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1113 if (--retries == 0) {
1114 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1115 iounmap(ha->brd);
1116 return 0;
1117 }
1118 gdth_delay(1);
1119 }
1120 prot_ver = (unchar)readl(&dp6c_ptr->u.ic.S_Info[0]);
1121 writeb(0, &dp6c_ptr->u.ic.Status);
1122 if (prot_ver != PROTOCOL_VERSION) {
1123 printk("GDT-PCI: Illegal protocol version\n");
1124 iounmap(ha->brd);
1125 return 0;
1126 }
1127
1128 ha->type = GDT_PCINEW;
1129 ha->ic_all_size = sizeof(dp6c_ptr->u);
1130
1131 /* special command to controller BIOS */
1132 writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1133 writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1134 writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1135 writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1136 writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1137
1138 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1139
1140 retries = INIT_RETRIES;
1141 gdth_delay(20);
1142 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1143 if (--retries == 0) {
1144 printk("GDT-PCI: Initialization error\n");
1145 iounmap(ha->brd);
1146 return 0;
1147 }
1148 gdth_delay(1);
1149 }
1150 writeb(0, &dp6c_ptr->u.ic.S_Status);
1151
1152 ha->dma64_support = 0;
1153
1154 } else { /* MPR */
1155 TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1156 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1157 if (ha->brd == NULL) {
1158 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1159 return 0;
1160 }
1161
1162 /* manipulate config. space to enable DPMEM, start RP controller */
1163 pci_read_config_word(pcistr->pdev, PCI_COMMAND, &command);
1164 command |= 6;
1165 pci_write_config_word(pcistr->pdev, PCI_COMMAND, command);
1166 if (pci_resource_start(pcistr->pdev, 8) == 1UL)
1167 pci_resource_start(pcistr->pdev, 8) = 0UL;
1168 i = 0xFEFF0001UL;
1169 pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS, i);
1170 gdth_delay(1);
1171 pci_write_config_dword(pcistr->pdev, PCI_ROM_ADDRESS,
1172 pci_resource_start(pcistr->pdev, 8));
1173
1174 dp6m_ptr = ha->brd;
1175
1176 /* Ensure that it is safe to access the non HW portions of DPMEM.
1177 * Aditional check needed for Xscale based RAID controllers */
1178 while( ((int)readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1179 gdth_delay(1);
1180
1181 /* check and reset interface area */
1182 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1183 if (readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1184 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1185 pcistr->dpmem);
1186 found = FALSE;
1187 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1188 iounmap(ha->brd);
1189 ha->brd = ioremap(i, sizeof(ushort));
1190 if (ha->brd == NULL) {
1191 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1192 return 0;
1193 }
1194 if (readw(ha->brd) != 0xffff) {
1195 TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1196 continue;
1197 }
1198 iounmap(ha->brd);
1199 pci_write_config_dword(pcistr->pdev,
1200 PCI_BASE_ADDRESS_0, i);
1201 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1202 if (ha->brd == NULL) {
1203 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1204 return 0;
1205 }
1206 dp6m_ptr = ha->brd;
1207 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1208 if (readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1209 printk("GDT-PCI: Use free address at 0x%x\n", i);
1210 found = TRUE;
1211 break;
1212 }
1213 }
1214 if (!found) {
1215 printk("GDT-PCI: No free address found!\n");
1216 iounmap(ha->brd);
1217 return 0;
1218 }
1219 }
1220 memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1221
1222 /* disable board interrupts, deinit services */
1223 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1224 &dp6m_ptr->i960r.edoor_en_reg);
1225 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1226 writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1227 writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1228
1229 writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1230 writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1231 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1232 retries = INIT_RETRIES;
1233 gdth_delay(20);
1234 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1235 if (--retries == 0) {
1236 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1237 iounmap(ha->brd);
1238 return 0;
1239 }
1240 gdth_delay(1);
1241 }
1242 prot_ver = (unchar)readl(&dp6m_ptr->u.ic.S_Info[0]);
1243 writeb(0, &dp6m_ptr->u.ic.S_Status);
1244 if (prot_ver != PROTOCOL_VERSION) {
1245 printk("GDT-PCI: Illegal protocol version\n");
1246 iounmap(ha->brd);
1247 return 0;
1248 }
1249
1250 ha->type = GDT_PCIMPR;
1251 ha->ic_all_size = sizeof(dp6m_ptr->u);
1252
1253 /* special command to controller BIOS */
1254 writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1255 writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1256 writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1257 writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1258 writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1259 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1260 retries = INIT_RETRIES;
1261 gdth_delay(20);
1262 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1263 if (--retries == 0) {
1264 printk("GDT-PCI: Initialization error\n");
1265 iounmap(ha->brd);
1266 return 0;
1267 }
1268 gdth_delay(1);
1269 }
1270 writeb(0, &dp6m_ptr->u.ic.S_Status);
1271
1272 /* read FW version to detect 64-bit DMA support */
1273 writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1274 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1275 retries = INIT_RETRIES;
1276 gdth_delay(20);
1277 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1278 if (--retries == 0) {
1279 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1280 iounmap(ha->brd);
1281 return 0;
1282 }
1283 gdth_delay(1);
1284 }
1285 prot_ver = (unchar)(readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1286 writeb(0, &dp6m_ptr->u.ic.S_Status);
1287 if (prot_ver < 0x2b) /* FW < x.43: no 64-bit DMA support */
1288 ha->dma64_support = 0;
1289 else
1290 ha->dma64_support = 1;
1291 }
1292
1293 return 1;
1294 }
1295 #endif /* CONFIG_PCI */
1296
1297 /* controller protocol functions */
1298
1299 static void __init gdth_enable_int(gdth_ha_str *ha)
1300 {
1301 ulong flags;
1302 gdt2_dpram_str __iomem *dp2_ptr;
1303 gdt6_dpram_str __iomem *dp6_ptr;
1304 gdt6m_dpram_str __iomem *dp6m_ptr;
1305
1306 TRACE(("gdth_enable_int() hanum %d\n",ha->hanum));
1307 spin_lock_irqsave(&ha->smp_lock, flags);
1308
1309 if (ha->type == GDT_EISA) {
1310 outb(0xff, ha->bmic + EDOORREG);
1311 outb(0xff, ha->bmic + EDENABREG);
1312 outb(0x01, ha->bmic + EINTENABREG);
1313 } else if (ha->type == GDT_ISA) {
1314 dp2_ptr = ha->brd;
1315 writeb(1, &dp2_ptr->io.irqdel);
1316 writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1317 writeb(1, &dp2_ptr->io.irqen);
1318 } else if (ha->type == GDT_PCI) {
1319 dp6_ptr = ha->brd;
1320 writeb(1, &dp6_ptr->io.irqdel);
1321 writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1322 writeb(1, &dp6_ptr->io.irqen);
1323 } else if (ha->type == GDT_PCINEW) {
1324 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1325 outb(0x03, PTR2USHORT(&ha->plx->control1));
1326 } else if (ha->type == GDT_PCIMPR) {
1327 dp6m_ptr = ha->brd;
1328 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1329 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1330 &dp6m_ptr->i960r.edoor_en_reg);
1331 }
1332 spin_unlock_irqrestore(&ha->smp_lock, flags);
1333 }
1334
1335 /* return IStatus if interrupt was from this card else 0 */
1336 static unchar gdth_get_status(gdth_ha_str *ha)
1337 {
1338 unchar IStatus = 0;
1339
1340 TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
1341
1342 if (ha->type == GDT_EISA)
1343 IStatus = inb((ushort)ha->bmic + EDOORREG);
1344 else if (ha->type == GDT_ISA)
1345 IStatus =
1346 readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1347 else if (ha->type == GDT_PCI)
1348 IStatus =
1349 readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1350 else if (ha->type == GDT_PCINEW)
1351 IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1352 else if (ha->type == GDT_PCIMPR)
1353 IStatus =
1354 readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
1355
1356 return IStatus;
1357 }
1358
1359 static int gdth_test_busy(gdth_ha_str *ha)
1360 {
1361 register int gdtsema0 = 0;
1362
1363 TRACE(("gdth_test_busy() hanum %d\n", ha->hanum));
1364
1365 if (ha->type == GDT_EISA)
1366 gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1367 else if (ha->type == GDT_ISA)
1368 gdtsema0 = (int)readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1369 else if (ha->type == GDT_PCI)
1370 gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1371 else if (ha->type == GDT_PCINEW)
1372 gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1373 else if (ha->type == GDT_PCIMPR)
1374 gdtsema0 =
1375 (int)readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1376
1377 return (gdtsema0 & 1);
1378 }
1379
1380
1381 static int gdth_get_cmd_index(gdth_ha_str *ha)
1382 {
1383 int i;
1384
1385 TRACE(("gdth_get_cmd_index() hanum %d\n", ha->hanum));
1386
1387 for (i=0; i<GDTH_MAXCMDS; ++i) {
1388 if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1389 ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1390 ha->cmd_tab[i].service = ha->pccb->Service;
1391 ha->pccb->CommandIndex = (ulong32)i+2;
1392 return (i+2);
1393 }
1394 }
1395 return 0;
1396 }
1397
1398
1399 static void gdth_set_sema0(gdth_ha_str *ha)
1400 {
1401 TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum));
1402
1403 if (ha->type == GDT_EISA) {
1404 outb(1, ha->bmic + SEMA0REG);
1405 } else if (ha->type == GDT_ISA) {
1406 writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1407 } else if (ha->type == GDT_PCI) {
1408 writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1409 } else if (ha->type == GDT_PCINEW) {
1410 outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1411 } else if (ha->type == GDT_PCIMPR) {
1412 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1413 }
1414 }
1415
1416
1417 static void gdth_copy_command(gdth_ha_str *ha)
1418 {
1419 register gdth_cmd_str *cmd_ptr;
1420 register gdt6m_dpram_str __iomem *dp6m_ptr;
1421 register gdt6c_dpram_str __iomem *dp6c_ptr;
1422 gdt6_dpram_str __iomem *dp6_ptr;
1423 gdt2_dpram_str __iomem *dp2_ptr;
1424 ushort cp_count,dp_offset,cmd_no;
1425
1426 TRACE(("gdth_copy_command() hanum %d\n", ha->hanum));
1427
1428 cp_count = ha->cmd_len;
1429 dp_offset= ha->cmd_offs_dpmem;
1430 cmd_no = ha->cmd_cnt;
1431 cmd_ptr = ha->pccb;
1432
1433 ++ha->cmd_cnt;
1434 if (ha->type == GDT_EISA)
1435 return; /* no DPMEM, no copy */
1436
1437 /* set cpcount dword aligned */
1438 if (cp_count & 3)
1439 cp_count += (4 - (cp_count & 3));
1440
1441 ha->cmd_offs_dpmem += cp_count;
1442
1443 /* set offset and service, copy command to DPMEM */
1444 if (ha->type == GDT_ISA) {
1445 dp2_ptr = ha->brd;
1446 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1447 &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
1448 writew((ushort)cmd_ptr->Service,
1449 &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1450 memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1451 } else if (ha->type == GDT_PCI) {
1452 dp6_ptr = ha->brd;
1453 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1454 &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
1455 writew((ushort)cmd_ptr->Service,
1456 &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1457 memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1458 } else if (ha->type == GDT_PCINEW) {
1459 dp6c_ptr = ha->brd;
1460 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1461 &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
1462 writew((ushort)cmd_ptr->Service,
1463 &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1464 memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1465 } else if (ha->type == GDT_PCIMPR) {
1466 dp6m_ptr = ha->brd;
1467 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1468 &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
1469 writew((ushort)cmd_ptr->Service,
1470 &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1471 memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1472 }
1473 }
1474
1475
1476 static void gdth_release_event(gdth_ha_str *ha)
1477 {
1478 TRACE(("gdth_release_event() hanum %d\n", ha->hanum));
1479
1480 #ifdef GDTH_STATISTICS
1481 {
1482 ulong32 i,j;
1483 for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1484 if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1485 ++i;
1486 }
1487 if (max_index < i) {
1488 max_index = i;
1489 TRACE3(("GDT: max_index = %d\n",(ushort)i));
1490 }
1491 }
1492 #endif
1493
1494 if (ha->pccb->OpCode == GDT_INIT)
1495 ha->pccb->Service |= 0x80;
1496
1497 if (ha->type == GDT_EISA) {
1498 if (ha->pccb->OpCode == GDT_INIT) /* store DMA buffer */
1499 outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1500 outb(ha->pccb->Service, ha->bmic + LDOORREG);
1501 } else if (ha->type == GDT_ISA) {
1502 writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1503 } else if (ha->type == GDT_PCI) {
1504 writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1505 } else if (ha->type == GDT_PCINEW) {
1506 outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1507 } else if (ha->type == GDT_PCIMPR) {
1508 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1509 }
1510 }
1511
1512 static int gdth_wait(gdth_ha_str *ha, int index, ulong32 time)
1513 {
1514 int answer_found = FALSE;
1515 int wait_index = 0;
1516
1517 TRACE(("gdth_wait() hanum %d index %d time %d\n", ha->hanum, index, time));
1518
1519 if (index == 0)
1520 return 1; /* no wait required */
1521
1522 do {
1523 __gdth_interrupt(ha, true, &wait_index);
1524 if (wait_index == index) {
1525 answer_found = TRUE;
1526 break;
1527 }
1528 gdth_delay(1);
1529 } while (--time);
1530
1531 while (gdth_test_busy(ha))
1532 gdth_delay(0);
1533
1534 return (answer_found);
1535 }
1536
1537
1538 static int gdth_internal_cmd(gdth_ha_str *ha, unchar service, ushort opcode,
1539 ulong32 p1, ulong64 p2, ulong64 p3)
1540 {
1541 register gdth_cmd_str *cmd_ptr;
1542 int retries,index;
1543
1544 TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1545
1546 cmd_ptr = ha->pccb;
1547 memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1548
1549 /* make command */
1550 for (retries = INIT_RETRIES;;) {
1551 cmd_ptr->Service = service;
1552 cmd_ptr->RequestBuffer = INTERNAL_CMND;
1553 if (!(index=gdth_get_cmd_index(ha))) {
1554 TRACE(("GDT: No free command index found\n"));
1555 return 0;
1556 }
1557 gdth_set_sema0(ha);
1558 cmd_ptr->OpCode = opcode;
1559 cmd_ptr->BoardNode = LOCALBOARD;
1560 if (service == CACHESERVICE) {
1561 if (opcode == GDT_IOCTL) {
1562 cmd_ptr->u.ioctl.subfunc = p1;
1563 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1564 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1565 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1566 } else {
1567 if (ha->cache_feat & GDT_64BIT) {
1568 cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1569 cmd_ptr->u.cache64.BlockNo = p2;
1570 } else {
1571 cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1572 cmd_ptr->u.cache.BlockNo = (ulong32)p2;
1573 }
1574 }
1575 } else if (service == SCSIRAWSERVICE) {
1576 if (ha->raw_feat & GDT_64BIT) {
1577 cmd_ptr->u.raw64.direction = p1;
1578 cmd_ptr->u.raw64.bus = (unchar)p2;
1579 cmd_ptr->u.raw64.target = (unchar)p3;
1580 cmd_ptr->u.raw64.lun = (unchar)(p3 >> 8);
1581 } else {
1582 cmd_ptr->u.raw.direction = p1;
1583 cmd_ptr->u.raw.bus = (unchar)p2;
1584 cmd_ptr->u.raw.target = (unchar)p3;
1585 cmd_ptr->u.raw.lun = (unchar)(p3 >> 8);
1586 }
1587 } else if (service == SCREENSERVICE) {
1588 if (opcode == GDT_REALTIME) {
1589 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1590 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1591 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1592 }
1593 }
1594 ha->cmd_len = sizeof(gdth_cmd_str);
1595 ha->cmd_offs_dpmem = 0;
1596 ha->cmd_cnt = 0;
1597 gdth_copy_command(ha);
1598 gdth_release_event(ha);
1599 gdth_delay(20);
1600 if (!gdth_wait(ha, index, INIT_TIMEOUT)) {
1601 printk("GDT: Initialization error (timeout service %d)\n",service);
1602 return 0;
1603 }
1604 if (ha->status != S_BSY || --retries == 0)
1605 break;
1606 gdth_delay(1);
1607 }
1608
1609 return (ha->status != S_OK ? 0:1);
1610 }
1611
1612
1613 /* search for devices */
1614
1615 static int __init gdth_search_drives(gdth_ha_str *ha)
1616 {
1617 ushort cdev_cnt, i;
1618 int ok;
1619 ulong32 bus_no, drv_cnt, drv_no, j;
1620 gdth_getch_str *chn;
1621 gdth_drlist_str *drl;
1622 gdth_iochan_str *ioc;
1623 gdth_raw_iochan_str *iocr;
1624 gdth_arcdl_str *alst;
1625 gdth_alist_str *alst2;
1626 gdth_oem_str_ioctl *oemstr;
1627 #ifdef INT_COAL
1628 gdth_perf_modes *pmod;
1629 #endif
1630
1631 #ifdef GDTH_RTC
1632 unchar rtc[12];
1633 ulong flags;
1634 #endif
1635
1636 TRACE(("gdth_search_drives() hanum %d\n", ha->hanum));
1637 ok = 0;
1638
1639 /* initialize controller services, at first: screen service */
1640 ha->screen_feat = 0;
1641 if (!force_dma32) {
1642 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_X_INIT_SCR, 0, 0, 0);
1643 if (ok)
1644 ha->screen_feat = GDT_64BIT;
1645 }
1646 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1647 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_INIT, 0, 0, 0);
1648 if (!ok) {
1649 printk("GDT-HA %d: Initialization error screen service (code %d)\n",
1650 ha->hanum, ha->status);
1651 return 0;
1652 }
1653 TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1654
1655 #ifdef GDTH_RTC
1656 /* read realtime clock info, send to controller */
1657 /* 1. wait for the falling edge of update flag */
1658 spin_lock_irqsave(&rtc_lock, flags);
1659 for (j = 0; j < 1000000; ++j)
1660 if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1661 break;
1662 for (j = 0; j < 1000000; ++j)
1663 if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1664 break;
1665 /* 2. read info */
1666 do {
1667 for (j = 0; j < 12; ++j)
1668 rtc[j] = CMOS_READ(j);
1669 } while (rtc[0] != CMOS_READ(0));
1670 spin_unlock_irqrestore(&rtc_lock, flags);
1671 TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1672 *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1673 /* 3. send to controller firmware */
1674 gdth_internal_cmd(ha, SCREENSERVICE, GDT_REALTIME, *(ulong32 *)&rtc[0],
1675 *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1676 #endif
1677
1678 /* unfreeze all IOs */
1679 gdth_internal_cmd(ha, CACHESERVICE, GDT_UNFREEZE_IO, 0, 0, 0);
1680
1681 /* initialize cache service */
1682 ha->cache_feat = 0;
1683 if (!force_dma32) {
1684 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INIT_HOST, LINUX_OS,
1685 0, 0);
1686 if (ok)
1687 ha->cache_feat = GDT_64BIT;
1688 }
1689 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1690 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_INIT, LINUX_OS, 0, 0);
1691 if (!ok) {
1692 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1693 ha->hanum, ha->status);
1694 return 0;
1695 }
1696 TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1697 cdev_cnt = (ushort)ha->info;
1698 ha->fw_vers = ha->service;
1699
1700 #ifdef INT_COAL
1701 if (ha->type == GDT_PCIMPR) {
1702 /* set perf. modes */
1703 pmod = (gdth_perf_modes *)ha->pscratch;
1704 pmod->version = 1;
1705 pmod->st_mode = 1; /* enable one status buffer */
1706 *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1707 pmod->st_buff_indx1 = COALINDEX;
1708 pmod->st_buff_addr2 = 0;
1709 pmod->st_buff_u_addr2 = 0;
1710 pmod->st_buff_indx2 = 0;
1711 pmod->st_buff_size = sizeof(gdth_coal_status) * MAXOFFSETS;
1712 pmod->cmd_mode = 0; // disable all cmd buffers
1713 pmod->cmd_buff_addr1 = 0;
1714 pmod->cmd_buff_u_addr1 = 0;
1715 pmod->cmd_buff_indx1 = 0;
1716 pmod->cmd_buff_addr2 = 0;
1717 pmod->cmd_buff_u_addr2 = 0;
1718 pmod->cmd_buff_indx2 = 0;
1719 pmod->cmd_buff_size = 0;
1720 pmod->reserved1 = 0;
1721 pmod->reserved2 = 0;
1722 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, SET_PERF_MODES,
1723 INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
1724 printk("GDT-HA %d: Interrupt coalescing activated\n", ha->hanum);
1725 }
1726 }
1727 #endif
1728
1729 /* detect number of buses - try new IOCTL */
1730 iocr = (gdth_raw_iochan_str *)ha->pscratch;
1731 iocr->hdr.version = 0xffffffff;
1732 iocr->hdr.list_entries = MAXBUS;
1733 iocr->hdr.first_chan = 0;
1734 iocr->hdr.last_chan = MAXBUS-1;
1735 iocr->hdr.list_offset = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
1736 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_RAW_DESC,
1737 INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
1738 TRACE2(("IOCHAN_RAW_DESC supported!\n"));
1739 ha->bus_cnt = iocr->hdr.chan_count;
1740 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1741 if (iocr->list[bus_no].proc_id < MAXID)
1742 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
1743 else
1744 ha->bus_id[bus_no] = 0xff;
1745 }
1746 } else {
1747 /* old method */
1748 chn = (gdth_getch_str *)ha->pscratch;
1749 for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
1750 chn->channel_no = bus_no;
1751 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1752 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1753 IO_CHANNEL | INVALID_CHANNEL,
1754 sizeof(gdth_getch_str))) {
1755 if (bus_no == 0) {
1756 printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
1757 ha->hanum, ha->status);
1758 return 0;
1759 }
1760 break;
1761 }
1762 if (chn->siop_id < MAXID)
1763 ha->bus_id[bus_no] = chn->siop_id;
1764 else
1765 ha->bus_id[bus_no] = 0xff;
1766 }
1767 ha->bus_cnt = (unchar)bus_no;
1768 }
1769 TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
1770
1771 /* read cache configuration */
1772 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_INFO,
1773 INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
1774 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
1775 ha->hanum, ha->status);
1776 return 0;
1777 }
1778 ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
1779 TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
1780 ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
1781 ha->cpar.write_back,ha->cpar.block_size));
1782
1783 /* read board info and features */
1784 ha->more_proc = FALSE;
1785 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_INFO,
1786 INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
1787 memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
1788 sizeof(gdth_binfo_str));
1789 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_FEATURES,
1790 INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
1791 TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
1792 ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
1793 ha->more_proc = TRUE;
1794 }
1795 } else {
1796 TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
1797 strcpy(ha->binfo.type_string, gdth_ctr_name(ha));
1798 }
1799 TRACE2(("Controller name: %s\n",ha->binfo.type_string));
1800
1801 /* read more informations */
1802 if (ha->more_proc) {
1803 /* physical drives, channel addresses */
1804 ioc = (gdth_iochan_str *)ha->pscratch;
1805 ioc->hdr.version = 0xffffffff;
1806 ioc->hdr.list_entries = MAXBUS;
1807 ioc->hdr.first_chan = 0;
1808 ioc->hdr.last_chan = MAXBUS-1;
1809 ioc->hdr.list_offset = GDTOFFSOF(gdth_iochan_str, list[0]);
1810 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_DESC,
1811 INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
1812 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1813 ha->raw[bus_no].address = ioc->list[bus_no].address;
1814 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
1815 }
1816 } else {
1817 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1818 ha->raw[bus_no].address = IO_CHANNEL;
1819 ha->raw[bus_no].local_no = bus_no;
1820 }
1821 }
1822 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1823 chn = (gdth_getch_str *)ha->pscratch;
1824 chn->channel_no = ha->raw[bus_no].local_no;
1825 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1826 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1827 ha->raw[bus_no].address | INVALID_CHANNEL,
1828 sizeof(gdth_getch_str))) {
1829 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
1830 TRACE2(("Channel %d: %d phys. drives\n",
1831 bus_no,chn->drive_cnt));
1832 }
1833 if (ha->raw[bus_no].pdev_cnt > 0) {
1834 drl = (gdth_drlist_str *)ha->pscratch;
1835 drl->sc_no = ha->raw[bus_no].local_no;
1836 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
1837 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1838 SCSI_DR_LIST | L_CTRL_PATTERN,
1839 ha->raw[bus_no].address | INVALID_CHANNEL,
1840 sizeof(gdth_drlist_str))) {
1841 for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
1842 ha->raw[bus_no].id_list[j] = drl->sc_list[j];
1843 } else {
1844 ha->raw[bus_no].pdev_cnt = 0;
1845 }
1846 }
1847 }
1848
1849 /* logical drives */
1850 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_CNT,
1851 INVALID_CHANNEL,sizeof(ulong32))) {
1852 drv_cnt = *(ulong32 *)ha->pscratch;
1853 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_LIST,
1854 INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
1855 for (j = 0; j < drv_cnt; ++j) {
1856 drv_no = ((ulong32 *)ha->pscratch)[j];
1857 if (drv_no < MAX_LDRIVES) {
1858 ha->hdr[drv_no].is_logdrv = TRUE;
1859 TRACE2(("Drive %d is log. drive\n",drv_no));
1860 }
1861 }
1862 }
1863 alst = (gdth_arcdl_str *)ha->pscratch;
1864 alst->entries_avail = MAX_LDRIVES;
1865 alst->first_entry = 0;
1866 alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
1867 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1868 ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
1869 INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
1870 (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
1871 for (j = 0; j < alst->entries_init; ++j) {
1872 ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
1873 ha->hdr[j].is_master = alst->list[j].is_master;
1874 ha->hdr[j].is_parity = alst->list[j].is_parity;
1875 ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
1876 ha->hdr[j].master_no = alst->list[j].cd_handle;
1877 }
1878 } else if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1879 ARRAY_DRV_LIST | LA_CTRL_PATTERN,
1880 0, 35 * sizeof(gdth_alist_str))) {
1881 for (j = 0; j < 35; ++j) {
1882 alst2 = &((gdth_alist_str *)ha->pscratch)[j];
1883 ha->hdr[j].is_arraydrv = alst2->is_arrayd;
1884 ha->hdr[j].is_master = alst2->is_master;
1885 ha->hdr[j].is_parity = alst2->is_parity;
1886 ha->hdr[j].is_hotfix = alst2->is_hotfix;
1887 ha->hdr[j].master_no = alst2->cd_handle;
1888 }
1889 }
1890 }
1891 }
1892
1893 /* initialize raw service */
1894 ha->raw_feat = 0;
1895 if (!force_dma32) {
1896 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_X_INIT_RAW, 0, 0, 0);
1897 if (ok)
1898 ha->raw_feat = GDT_64BIT;
1899 }
1900 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
1901 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_INIT, 0, 0, 0);
1902 if (!ok) {
1903 printk("GDT-HA %d: Initialization error raw service (code %d)\n",
1904 ha->hanum, ha->status);
1905 return 0;
1906 }
1907 TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
1908
1909 /* set/get features raw service (scatter/gather) */
1910 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_SET_FEAT, SCATTER_GATHER,
1911 0, 0)) {
1912 TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
1913 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1914 TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
1915 ha->info));
1916 ha->raw_feat |= (ushort)ha->info;
1917 }
1918 }
1919
1920 /* set/get features cache service (equal to raw service) */
1921 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_SET_FEAT, 0,
1922 SCATTER_GATHER,0)) {
1923 TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
1924 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1925 TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
1926 ha->info));
1927 ha->cache_feat |= (ushort)ha->info;
1928 }
1929 }
1930
1931 /* reserve drives for raw service */
1932 if (reserve_mode != 0) {
1933 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE_ALL,
1934 reserve_mode == 1 ? 1 : 3, 0, 0);
1935 TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
1936 ha->status));
1937 }
1938 for (i = 0; i < MAX_RES_ARGS; i += 4) {
1939 if (reserve_list[i] == ha->hanum && reserve_list[i+1] < ha->bus_cnt &&
1940 reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
1941 TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
1942 reserve_list[i], reserve_list[i+1],
1943 reserve_list[i+2], reserve_list[i+3]));
1944 if (!gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE, 0,
1945 reserve_list[i+1], reserve_list[i+2] |
1946 (reserve_list[i+3] << 8))) {
1947 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
1948 ha->hanum, ha->status);
1949 }
1950 }
1951 }
1952
1953 /* Determine OEM string using IOCTL */
1954 oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
1955 oemstr->params.ctl_version = 0x01;
1956 oemstr->params.buffer_size = sizeof(oemstr->text);
1957 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1958 CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
1959 sizeof(gdth_oem_str_ioctl))) {
1960 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
1961 printk("GDT-HA %d: Vendor: %s Name: %s\n",
1962 ha->hanum, oemstr->text.oem_company_name, ha->binfo.type_string);
1963 /* Save the Host Drive inquiry data */
1964 strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
1965 sizeof(ha->oem_name));
1966 } else {
1967 /* Old method, based on PCI ID */
1968 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
1969 printk("GDT-HA %d: Name: %s\n",
1970 ha->hanum, ha->binfo.type_string);
1971 if (ha->oem_id == OEM_ID_INTEL)
1972 strlcpy(ha->oem_name,"Intel ", sizeof(ha->oem_name));
1973 else
1974 strlcpy(ha->oem_name,"ICP ", sizeof(ha->oem_name));
1975 }
1976
1977 /* scanning for host drives */
1978 for (i = 0; i < cdev_cnt; ++i)
1979 gdth_analyse_hdrive(ha, i);
1980
1981 TRACE(("gdth_search_drives() OK\n"));
1982 return 1;
1983 }
1984
1985 static int gdth_analyse_hdrive(gdth_ha_str *ha, ushort hdrive)
1986 {
1987 ulong32 drv_cyls;
1988 int drv_hds, drv_secs;
1989
1990 TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n", ha->hanum, hdrive));
1991 if (hdrive >= MAX_HDRIVES)
1992 return 0;
1993
1994 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_INFO, hdrive, 0, 0))
1995 return 0;
1996 ha->hdr[hdrive].present = TRUE;
1997 ha->hdr[hdrive].size = ha->info;
1998
1999 /* evaluate mapping (sectors per head, heads per cylinder) */
2000 ha->hdr[hdrive].size &= ~SECS32;
2001 if (ha->info2 == 0) {
2002 gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
2003 } else {
2004 drv_hds = ha->info2 & 0xff;
2005 drv_secs = (ha->info2 >> 8) & 0xff;
2006 drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
2007 }
2008 ha->hdr[hdrive].heads = (unchar)drv_hds;
2009 ha->hdr[hdrive].secs = (unchar)drv_secs;
2010 /* round size */
2011 ha->hdr[hdrive].size = drv_cyls * drv_hds * drv_secs;
2012
2013 if (ha->cache_feat & GDT_64BIT) {
2014 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INFO, hdrive, 0, 0)
2015 && ha->info2 != 0) {
2016 ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
2017 }
2018 }
2019 TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
2020 hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
2021
2022 /* get informations about device */
2023 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_DEVTYPE, hdrive, 0, 0)) {
2024 TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
2025 hdrive,ha->info));
2026 ha->hdr[hdrive].devtype = (ushort)ha->info;
2027 }
2028
2029 /* cluster info */
2030 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_CLUST_INFO, hdrive, 0, 0)) {
2031 TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
2032 hdrive,ha->info));
2033 if (!shared_access)
2034 ha->hdr[hdrive].cluster_type = (unchar)ha->info;
2035 }
2036
2037 /* R/W attributes */
2038 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_RW_ATTRIBS, hdrive, 0, 0)) {
2039 TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
2040 hdrive,ha->info));
2041 ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
2042 }
2043
2044 return 1;
2045 }
2046
2047
2048 /* command queueing/sending functions */
2049
2050 static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority)
2051 {
2052 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2053 register Scsi_Cmnd *pscp;
2054 register Scsi_Cmnd *nscp;
2055 ulong flags;
2056 unchar b, t;
2057
2058 TRACE(("gdth_putq() priority %d\n",priority));
2059 spin_lock_irqsave(&ha->smp_lock, flags);
2060
2061 if (!cmndinfo->internal_command) {
2062 cmndinfo->priority = priority;
2063 b = scp->device->channel;
2064 t = scp->device->id;
2065 if (priority >= DEFAULT_PRI) {
2066 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2067 (b==ha->virt_bus && t<MAX_HDRIVES && ha->hdr[t].lock)) {
2068 TRACE2(("gdth_putq(): locked IO ->update_timeout()\n"));
2069 cmndinfo->timeout = gdth_update_timeout(scp, 0);
2070 }
2071 }
2072 }
2073
2074 if (ha->req_first==NULL) {
2075 ha->req_first = scp; /* queue was empty */
2076 scp->SCp.ptr = NULL;
2077 } else { /* queue not empty */
2078 pscp = ha->req_first;
2079 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2080 /* priority: 0-highest,..,0xff-lowest */
2081 while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) {
2082 pscp = nscp;
2083 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2084 }
2085 pscp->SCp.ptr = (char *)scp;
2086 scp->SCp.ptr = (char *)nscp;
2087 }
2088 spin_unlock_irqrestore(&ha->smp_lock, flags);
2089
2090 #ifdef GDTH_STATISTICS
2091 flags = 0;
2092 for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2093 ++flags;
2094 if (max_rq < flags) {
2095 max_rq = flags;
2096 TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2097 }
2098 #endif
2099 }
2100
2101 static void gdth_next(gdth_ha_str *ha)
2102 {
2103 register Scsi_Cmnd *pscp;
2104 register Scsi_Cmnd *nscp;
2105 unchar b, t, l, firsttime;
2106 unchar this_cmd, next_cmd;
2107 ulong flags = 0;
2108 int cmd_index;
2109
2110 TRACE(("gdth_next() hanum %d\n", ha->hanum));
2111 if (!gdth_polling)
2112 spin_lock_irqsave(&ha->smp_lock, flags);
2113
2114 ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2115 this_cmd = firsttime = TRUE;
2116 next_cmd = gdth_polling ? FALSE:TRUE;
2117 cmd_index = 0;
2118
2119 for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
2120 struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp);
2121 if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2122 pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2123 if (!nscp_cmndinfo->internal_command) {
2124 b = nscp->device->channel;
2125 t = nscp->device->id;
2126 l = nscp->device->lun;
2127 if (nscp_cmndinfo->priority >= DEFAULT_PRI) {
2128 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2129 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2130 continue;
2131 }
2132 } else
2133 b = t = l = 0;
2134
2135 if (firsttime) {
2136 if (gdth_test_busy(ha)) { /* controller busy ? */
2137 TRACE(("gdth_next() controller %d busy !\n", ha->hanum));
2138 if (!gdth_polling) {
2139 spin_unlock_irqrestore(&ha->smp_lock, flags);
2140 return;
2141 }
2142 while (gdth_test_busy(ha))
2143 gdth_delay(1);
2144 }
2145 firsttime = FALSE;
2146 }
2147
2148 if (!nscp_cmndinfo->internal_command) {
2149 if (nscp_cmndinfo->phase == -1) {
2150 nscp_cmndinfo->phase = CACHESERVICE; /* default: cache svc. */
2151 if (nscp->cmnd[0] == TEST_UNIT_READY) {
2152 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2153 b, t, l));
2154 /* TEST_UNIT_READY -> set scan mode */
2155 if ((ha->scan_mode & 0x0f) == 0) {
2156 if (b == 0 && t == 0 && l == 0) {
2157 ha->scan_mode |= 1;
2158 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2159 }
2160 } else if ((ha->scan_mode & 0x0f) == 1) {
2161 if (b == 0 && ((t == 0 && l == 1) ||
2162 (t == 1 && l == 0))) {
2163 nscp_cmndinfo->OpCode = GDT_SCAN_START;
2164 nscp_cmndinfo->phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
2165 | SCSIRAWSERVICE;
2166 ha->scan_mode = 0x12;
2167 TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2168 ha->scan_mode));
2169 } else {
2170 ha->scan_mode &= 0x10;
2171 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2172 }
2173 } else if (ha->scan_mode == 0x12) {
2174 if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
2175 nscp_cmndinfo->phase = SCSIRAWSERVICE;
2176 nscp_cmndinfo->OpCode = GDT_SCAN_END;
2177 ha->scan_mode &= 0x10;
2178 TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2179 ha->scan_mode));
2180 }
2181 }
2182 }
2183 if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2184 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2185 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2186 /* always GDT_CLUST_INFO! */
2187 nscp_cmndinfo->OpCode = GDT_CLUST_INFO;
2188 }
2189 }
2190 }
2191
2192 if (nscp_cmndinfo->OpCode != -1) {
2193 if ((nscp_cmndinfo->phase & 0xff) == CACHESERVICE) {
2194 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2195 this_cmd = FALSE;
2196 next_cmd = FALSE;
2197 } else if ((nscp_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) {
2198 if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
2199 this_cmd = FALSE;
2200 next_cmd = FALSE;
2201 } else {
2202 memset((char*)nscp->sense_buffer,0,16);
2203 nscp->sense_buffer[0] = 0x70;
2204 nscp->sense_buffer[2] = NOT_READY;
2205 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2206 if (!nscp_cmndinfo->wait_for_completion)
2207 nscp_cmndinfo->wait_for_completion++;
2208 else
2209 gdth_scsi_done(nscp);
2210 }
2211 } else if (gdth_cmnd_priv(nscp)->internal_command) {
2212 if (!(cmd_index=gdth_special_cmd(ha, nscp)))
2213 this_cmd = FALSE;
2214 next_cmd = FALSE;
2215 } else if (b != ha->virt_bus) {
2216 if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
2217 !(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
2218 this_cmd = FALSE;
2219 else
2220 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2221 } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2222 TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2223 nscp->cmnd[0], b, t, l));
2224 nscp->result = DID_BAD_TARGET << 16;
2225 if (!nscp_cmndinfo->wait_for_completion)
2226 nscp_cmndinfo->wait_for_completion++;
2227 else
2228 gdth_scsi_done(nscp);
2229 } else {
2230 switch (nscp->cmnd[0]) {
2231 case TEST_UNIT_READY:
2232 case INQUIRY:
2233 case REQUEST_SENSE:
2234 case READ_CAPACITY:
2235 case VERIFY:
2236 case START_STOP:
2237 case MODE_SENSE:
2238 case SERVICE_ACTION_IN:
2239 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2240 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2241 nscp->cmnd[4],nscp->cmnd[5]));
2242 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2243 /* return UNIT_ATTENTION */
2244 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2245 nscp->cmnd[0], t));
2246 ha->hdr[t].media_changed = FALSE;
2247 memset((char*)nscp->sense_buffer,0,16);
2248 nscp->sense_buffer[0] = 0x70;
2249 nscp->sense_buffer[2] = UNIT_ATTENTION;
2250 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2251 if (!nscp_cmndinfo->wait_for_completion)
2252 nscp_cmndinfo->wait_for_completion++;
2253 else
2254 gdth_scsi_done(nscp);
2255 } else if (gdth_internal_cache_cmd(ha, nscp))
2256 gdth_scsi_done(nscp);
2257 break;
2258
2259 case ALLOW_MEDIUM_REMOVAL:
2260 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2261 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2262 nscp->cmnd[4],nscp->cmnd[5]));
2263 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2264 TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2265 nscp->result = DID_OK << 16;
2266 nscp->sense_buffer[0] = 0;
2267 if (!nscp_cmndinfo->wait_for_completion)
2268 nscp_cmndinfo->wait_for_completion++;
2269 else
2270 gdth_scsi_done(nscp);
2271 } else {
2272 nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2273 TRACE(("Prevent/allow r. %d rem. drive %d\n",
2274 nscp->cmnd[4],nscp->cmnd[3]));
2275 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2276 this_cmd = FALSE;
2277 }
2278 break;
2279
2280 case RESERVE:
2281 case RELEASE:
2282 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2283 "RESERVE" : "RELEASE"));
2284 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2285 this_cmd = FALSE;
2286 break;
2287
2288 case READ_6:
2289 case WRITE_6:
2290 case READ_10:
2291 case WRITE_10:
2292 case READ_16:
2293 case WRITE_16:
2294 if (ha->hdr[t].media_changed) {
2295 /* return UNIT_ATTENTION */
2296 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2297 nscp->cmnd[0], t));
2298 ha->hdr[t].media_changed = FALSE;
2299 memset((char*)nscp->sense_buffer,0,16);
2300 nscp->sense_buffer[0] = 0x70;
2301 nscp->sense_buffer[2] = UNIT_ATTENTION;
2302 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
2303 if (!nscp_cmndinfo->wait_for_completion)
2304 nscp_cmndinfo->wait_for_completion++;
2305 else
2306 gdth_scsi_done(nscp);
2307 } else if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
2308 this_cmd = FALSE;
2309 break;
2310
2311 default:
2312 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2313 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2314 nscp->cmnd[4],nscp->cmnd[5]));
2315 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
2316 ha->hanum, nscp->cmnd[0]);
2317 nscp->result = DID_ABORT << 16;
2318 if (!nscp_cmndinfo->wait_for_completion)
2319 nscp_cmndinfo->wait_for_completion++;
2320 else
2321 gdth_scsi_done(nscp);
2322 break;
2323 }
2324 }
2325
2326 if (!this_cmd)
2327 break;
2328 if (nscp == ha->req_first)
2329 ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2330 else
2331 pscp->SCp.ptr = nscp->SCp.ptr;
2332 if (!next_cmd)
2333 break;
2334 }
2335
2336 if (ha->cmd_cnt > 0) {
2337 gdth_release_event(ha);
2338 }
2339
2340 if (!gdth_polling)
2341 spin_unlock_irqrestore(&ha->smp_lock, flags);
2342
2343 if (gdth_polling && ha->cmd_cnt > 0) {
2344 if (!gdth_wait(ha, cmd_index, POLL_TIMEOUT))
2345 printk("GDT-HA %d: Command %d timed out !\n",
2346 ha->hanum, cmd_index);
2347 }
2348 }
2349
2350 /*
2351 * gdth_copy_internal_data() - copy to/from a buffer onto a scsi_cmnd's
2352 * buffers, kmap_atomic() as needed.
2353 */
2354 static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
2355 char *buffer, ushort count, int to_buffer)
2356 {
2357 ushort cpcount,i, max_sg = gdth_sg_count(scp);
2358 ushort cpsum,cpnow;
2359 struct scatterlist *sl;
2360 char *address;
2361
2362 cpcount = min_t(ushort, count, gdth_bufflen(scp));
2363
2364 if (cpcount) {
2365 cpsum=0;
2366 scsi_for_each_sg(scp, sl, max_sg, i) {
2367 unsigned long flags;
2368 cpnow = (ushort)sl->length;
2369 TRACE(("copy_internal() now %d sum %d count %d %d\n",
2370 cpnow, cpsum, cpcount, gdth_bufflen(scp)));
2371 if (cpsum+cpnow > cpcount)
2372 cpnow = cpcount - cpsum;
2373 cpsum += cpnow;
2374 if (!sg_page(sl)) {
2375 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
2376 ha->hanum);
2377 return;
2378 }
2379 local_irq_save(flags);
2380 address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
2381 if (to_buffer)
2382 memcpy(buffer, address, cpnow);
2383 else
2384 memcpy(address, buffer, cpnow);
2385 flush_dcache_page(sg_page(sl));
2386 kunmap_atomic(address, KM_BIO_SRC_IRQ);
2387 local_irq_restore(flags);
2388 if (cpsum == cpcount)
2389 break;
2390 buffer += cpnow;
2391 }
2392 } else if (count) {
2393 printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n",
2394 ha->hanum);
2395 WARN_ON(1);
2396 }
2397 }
2398
2399 static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
2400 {
2401 unchar t;
2402 gdth_inq_data inq;
2403 gdth_rdcap_data rdc;
2404 gdth_sense_data sd;
2405 gdth_modep_data mpd;
2406 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2407
2408 t = scp->device->id;
2409 TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2410 scp->cmnd[0],t));
2411
2412 scp->result = DID_OK << 16;
2413 scp->sense_buffer[0] = 0;
2414
2415 switch (scp->cmnd[0]) {
2416 case TEST_UNIT_READY:
2417 case VERIFY:
2418 case START_STOP:
2419 TRACE2(("Test/Verify/Start hdrive %d\n",t));
2420 break;
2421
2422 case INQUIRY:
2423 TRACE2(("Inquiry hdrive %d devtype %d\n",
2424 t,ha->hdr[t].devtype));
2425 inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2426 /* you can here set all disks to removable, if you want to do
2427 a flush using the ALLOW_MEDIUM_REMOVAL command */
2428 inq.modif_rmb = 0x00;
2429 if ((ha->hdr[t].devtype & 1) ||
2430 (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2431 inq.modif_rmb = 0x80;
2432 inq.version = 2;
2433 inq.resp_aenc = 2;
2434 inq.add_length= 32;
2435 strcpy(inq.vendor,ha->oem_name);
2436 sprintf(inq.product,"Host Drive #%02d",t);
2437 strcpy(inq.revision," ");
2438 gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data), 0);
2439 break;
2440
2441 case REQUEST_SENSE:
2442 TRACE2(("Request sense hdrive %d\n",t));
2443 sd.errorcode = 0x70;
2444 sd.segno = 0x00;
2445 sd.key = NO_SENSE;
2446 sd.info = 0;
2447 sd.add_length= 0;
2448 gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data), 0);
2449 break;
2450
2451 case MODE_SENSE:
2452 TRACE2(("Mode sense hdrive %d\n",t));
2453 memset((char*)&mpd,0,sizeof(gdth_modep_data));
2454 mpd.hd.data_length = sizeof(gdth_modep_data);
2455 mpd.hd.dev_par = (ha->hdr[t].devtype&2) ? 0x80:0;
2456 mpd.hd.bd_length = sizeof(mpd.bd);
2457 mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2458 mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2459 mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
2460 gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data), 0);
2461 break;
2462
2463 case READ_CAPACITY:
2464 TRACE2(("Read capacity hdrive %d\n",t));
2465 if (ha->hdr[t].size > (ulong64)0xffffffff)
2466 rdc.last_block_no = 0xffffffff;
2467 else
2468 rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2469 rdc.block_length = cpu_to_be32(SECTOR_SIZE);
2470 gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data), 0);
2471 break;
2472
2473 case SERVICE_ACTION_IN:
2474 if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2475 (ha->cache_feat & GDT_64BIT)) {
2476 gdth_rdcap16_data rdc16;
2477
2478 TRACE2(("Read capacity (16) hdrive %d\n",t));
2479 rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2480 rdc16.block_length = cpu_to_be32(SECTOR_SIZE);
2481 gdth_copy_internal_data(ha, scp, (char*)&rdc16,
2482 sizeof(gdth_rdcap16_data), 0);
2483 } else {
2484 scp->result = DID_ABORT << 16;
2485 }
2486 break;
2487
2488 default:
2489 TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2490 break;
2491 }
2492
2493 if (!cmndinfo->wait_for_completion)
2494 cmndinfo->wait_for_completion++;
2495 else
2496 return 1;
2497
2498 return 0;
2499 }
2500
2501 static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive)
2502 {
2503 register gdth_cmd_str *cmdp;
2504 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
2505 ulong32 cnt, blockcnt;
2506 ulong64 no, blockno;
2507 int i, cmd_index, read_write, sgcnt, mode64;
2508
2509 cmdp = ha->pccb;
2510 TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2511 scp->cmnd[0],scp->cmd_len,hdrive));
2512
2513 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2514 return 0;
2515
2516 mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2517 /* test for READ_16, WRITE_16 if !mode64 ? ---
2518 not required, should not occur due to error return on
2519 READ_CAPACITY_16 */
2520
2521 cmdp->Service = CACHESERVICE;
2522 cmdp->RequestBuffer = scp;
2523 /* search free command index */
2524 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2525 TRACE(("GDT: No free command index found\n"));
2526 return 0;
2527 }
2528 /* if it's the first command, set command semaphore */
2529 if (ha->cmd_cnt == 0)
2530 gdth_set_sema0(ha);
2531
2532 /* fill command */
2533 read_write = 0;
2534 if (cmndinfo->OpCode != -1)
2535 cmdp->OpCode = cmndinfo->OpCode; /* special cache cmd. */
2536 else if (scp->cmnd[0] == RESERVE)
2537 cmdp->OpCode = GDT_RESERVE_DRV;
2538 else if (scp->cmnd[0] == RELEASE)
2539 cmdp->OpCode = GDT_RELEASE_DRV;
2540 else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2541 if (scp->cmnd[4] & 1) /* prevent ? */
2542 cmdp->OpCode = GDT_MOUNT;
2543 else if (scp->cmnd[3] & 1) /* removable drive ? */
2544 cmdp->OpCode = GDT_UNMOUNT;
2545 else
2546 cmdp->OpCode = GDT_FLUSH;
2547 } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2548 scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2549 ) {
2550 read_write = 1;
2551 if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2552 (ha->cache_feat & GDT_WR_THROUGH)))
2553 cmdp->OpCode = GDT_WRITE_THR;
2554 else
2555 cmdp->OpCode = GDT_WRITE;
2556 } else {
2557 read_write = 2;
2558 cmdp->OpCode = GDT_READ;
2559 }
2560
2561 cmdp->BoardNode = LOCALBOARD;
2562 if (mode64) {
2563 cmdp->u.cache64.DeviceNo = hdrive;
2564 cmdp->u.cache64.BlockNo = 1;
2565 cmdp->u.cache64.sg_canz = 0;
2566 } else {
2567 cmdp->u.cache.DeviceNo = hdrive;
2568 cmdp->u.cache.BlockNo = 1;
2569 cmdp->u.cache.sg_canz = 0;
2570 }
2571
2572 if (read_write) {
2573 if (scp->cmd_len == 16) {
2574 memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2575 blockno = be64_to_cpu(no);
2576 memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2577 blockcnt = be32_to_cpu(cnt);
2578 } else if (scp->cmd_len == 10) {
2579 memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2580 blockno = be32_to_cpu(no);
2581 memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2582 blockcnt = be16_to_cpu(cnt);
2583 } else {
2584 memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2585 blockno = be32_to_cpu(no) & 0x001fffffUL;
2586 blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2587 }
2588 if (mode64) {
2589 cmdp->u.cache64.BlockNo = blockno;
2590 cmdp->u.cache64.BlockCnt = blockcnt;
2591 } else {
2592 cmdp->u.cache.BlockNo = (ulong32)blockno;
2593 cmdp->u.cache.BlockCnt = blockcnt;
2594 }
2595
2596 if (gdth_bufflen(scp)) {
2597 cmndinfo->dma_dir = (read_write == 1 ?
2598 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
2599 sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
2600 cmndinfo->dma_dir);
2601 if (mode64) {
2602 struct scatterlist *sl;
2603
2604 cmdp->u.cache64.DestAddr= (ulong64)-1;
2605 cmdp->u.cache64.sg_canz = sgcnt;
2606 scsi_for_each_sg(scp, sl, sgcnt, i) {
2607 cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2608 #ifdef GDTH_DMA_STATISTICS
2609 if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2610 ha->dma64_cnt++;
2611 else
2612 ha->dma32_cnt++;
2613 #endif
2614 cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2615 }
2616 } else {
2617 struct scatterlist *sl;
2618
2619 cmdp->u.cache.DestAddr= 0xffffffff;
2620 cmdp->u.cache.sg_canz = sgcnt;
2621 scsi_for_each_sg(scp, sl, sgcnt, i) {
2622 cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2623 #ifdef GDTH_DMA_STATISTICS
2624 ha->dma32_cnt++;
2625 #endif
2626 cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2627 }
2628 }
2629
2630 #ifdef GDTH_STATISTICS
2631 if (max_sg < (ulong32)sgcnt) {
2632 max_sg = (ulong32)sgcnt;
2633 TRACE3(("GDT: max_sg = %d\n",max_sg));
2634 }
2635 #endif
2636
2637 }
2638 }
2639 /* evaluate command size, check space */
2640 if (mode64) {
2641 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2642 cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2643 cmdp->u.cache64.sg_lst[0].sg_ptr,
2644 cmdp->u.cache64.sg_lst[0].sg_len));
2645 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2646 cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2647 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2648 (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2649 } else {
2650 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2651 cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2652 cmdp->u.cache.sg_lst[0].sg_ptr,
2653 cmdp->u.cache.sg_lst[0].sg_len));
2654 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2655 cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2656 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2657 (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2658 }
2659 if (ha->cmd_len & 3)
2660 ha->cmd_len += (4 - (ha->cmd_len & 3));
2661
2662 if (ha->cmd_cnt > 0) {
2663 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2664 ha->ic_all_size) {
2665 TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
2666 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2667 return 0;
2668 }
2669 }
2670
2671 /* copy command */
2672 gdth_copy_command(ha);
2673 return cmd_index;
2674 }
2675
2676 static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
2677 {
2678 register gdth_cmd_str *cmdp;
2679 ushort i;
2680 dma_addr_t sense_paddr;
2681 int cmd_index, sgcnt, mode64;
2682 unchar t,l;
2683 struct page *page;
2684 ulong offset;
2685 struct gdth_cmndinfo *cmndinfo;
2686
2687 t = scp->device->id;
2688 l = scp->device->lun;
2689 cmdp = ha->pccb;
2690 TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
2691 scp->cmnd[0],b,t,l));
2692
2693 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2694 return 0;
2695
2696 mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
2697
2698 cmdp->Service = SCSIRAWSERVICE;
2699 cmdp->RequestBuffer = scp;
2700 /* search free command index */
2701 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2702 TRACE(("GDT: No free command index found\n"));
2703 return 0;
2704 }
2705 /* if it's the first command, set command semaphore */
2706 if (ha->cmd_cnt == 0)
2707 gdth_set_sema0(ha);
2708
2709 cmndinfo = gdth_cmnd_priv(scp);
2710 /* fill command */
2711 if (cmndinfo->OpCode != -1) {
2712 cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */
2713 cmdp->BoardNode = LOCALBOARD;
2714 if (mode64) {
2715 cmdp->u.raw64.direction = (cmndinfo->phase >> 8);
2716 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2717 cmdp->OpCode, cmdp->u.raw64.direction));
2718 /* evaluate command size */
2719 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
2720 } else {
2721 cmdp->u.raw.direction = (cmndinfo->phase >> 8);
2722 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2723 cmdp->OpCode, cmdp->u.raw.direction));
2724 /* evaluate command size */
2725 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
2726 }
2727
2728 } else {
2729 page = virt_to_page(scp->sense_buffer);
2730 offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
2731 sense_paddr = pci_map_page(ha->pdev,page,offset,
2732 16,PCI_DMA_FROMDEVICE);
2733
2734 cmndinfo->sense_paddr = sense_paddr;
2735 cmdp->OpCode = GDT_WRITE; /* always */
2736 cmdp->BoardNode = LOCALBOARD;
2737 if (mode64) {
2738 cmdp->u.raw64.reserved = 0;
2739 cmdp->u.raw64.mdisc_time = 0;
2740 cmdp->u.raw64.mcon_time = 0;
2741 cmdp->u.raw64.clen = scp->cmd_len;
2742 cmdp->u.raw64.target = t;
2743 cmdp->u.raw64.lun = l;
2744 cmdp->u.raw64.bus = b;
2745 cmdp->u.raw64.priority = 0;
2746 cmdp->u.raw64.sdlen = gdth_bufflen(scp);
2747 cmdp->u.raw64.sense_len = 16;
2748 cmdp->u.raw64.sense_data = sense_paddr;
2749 cmdp->u.raw64.direction =
2750 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2751 memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
2752 cmdp->u.raw64.sg_ranz = 0;
2753 } else {
2754 cmdp->u.raw.reserved = 0;
2755 cmdp->u.raw.mdisc_time = 0;
2756 cmdp->u.raw.mcon_time = 0;
2757 cmdp->u.raw.clen = scp->cmd_len;
2758 cmdp->u.raw.target = t;
2759 cmdp->u.raw.lun = l;
2760 cmdp->u.raw.bus = b;
2761 cmdp->u.raw.priority = 0;
2762 cmdp->u.raw.link_p = 0;
2763 cmdp->u.raw.sdlen = gdth_bufflen(scp);
2764 cmdp->u.raw.sense_len = 16;
2765 cmdp->u.raw.sense_data = sense_paddr;
2766 cmdp->u.raw.direction =
2767 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2768 memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
2769 cmdp->u.raw.sg_ranz = 0;
2770 }
2771
2772 if (gdth_bufflen(scp)) {
2773 cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
2774 sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
2775 cmndinfo->dma_dir);
2776 if (mode64) {
2777 struct scatterlist *sl;
2778
2779 cmdp->u.raw64.sdata = (ulong64)-1;
2780 cmdp->u.raw64.sg_ranz = sgcnt;
2781 scsi_for_each_sg(scp, sl, sgcnt, i) {
2782 cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2783 #ifdef GDTH_DMA_STATISTICS
2784 if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2785 ha->dma64_cnt++;
2786 else
2787 ha->dma32_cnt++;
2788 #endif
2789 cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
2790 }
2791 } else {
2792 struct scatterlist *sl;
2793
2794 cmdp->u.raw.sdata = 0xffffffff;
2795 cmdp->u.raw.sg_ranz = sgcnt;
2796 scsi_for_each_sg(scp, sl, sgcnt, i) {
2797 cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
2798 #ifdef GDTH_DMA_STATISTICS
2799 ha->dma32_cnt++;
2800 #endif
2801 cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
2802 }
2803 }
2804
2805 #ifdef GDTH_STATISTICS
2806 if (max_sg < sgcnt) {
2807 max_sg = sgcnt;
2808 TRACE3(("GDT: max_sg = %d\n",sgcnt));
2809 }
2810 #endif
2811
2812 }
2813 if (mode64) {
2814 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2815 cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
2816 cmdp->u.raw64.sg_lst[0].sg_ptr,
2817 cmdp->u.raw64.sg_lst[0].sg_len));
2818 /* evaluate command size */
2819 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
2820 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
2821 } else {
2822 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2823 cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
2824 cmdp->u.raw.sg_lst[0].sg_ptr,
2825 cmdp->u.raw.sg_lst[0].sg_len));
2826 /* evaluate command size */
2827 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
2828 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
2829 }
2830 }
2831 /* check space */
2832 if (ha->cmd_len & 3)
2833 ha->cmd_len += (4 - (ha->cmd_len & 3));
2834
2835 if (ha->cmd_cnt > 0) {
2836 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2837 ha->ic_all_size) {
2838 TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
2839 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2840 return 0;
2841 }
2842 }
2843
2844 /* copy command */
2845 gdth_copy_command(ha);
2846 return cmd_index;
2847 }
2848
2849 static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
2850 {
2851 register gdth_cmd_str *cmdp;
2852 int cmd_index;
2853
2854 cmdp= ha->pccb;
2855 TRACE2(("gdth_special_cmd(): "));
2856
2857 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2858 return 0;
2859
2860 gdth_copy_internal_data(ha, scp, (char *)cmdp, sizeof(gdth_cmd_str), 1);
2861 cmdp->RequestBuffer = scp;
2862
2863 /* search free command index */
2864 if (!(cmd_index=gdth_get_cmd_index(ha))) {
2865 TRACE(("GDT: No free command index found\n"));
2866 return 0;
2867 }
2868
2869 /* if it's the first command, set command semaphore */
2870 if (ha->cmd_cnt == 0)
2871 gdth_set_sema0(ha);
2872
2873 /* evaluate command size, check space */
2874 if (cmdp->OpCode == GDT_IOCTL) {
2875 TRACE2(("IOCTL\n"));
2876 ha->cmd_len =
2877 GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
2878 } else if (cmdp->Service == CACHESERVICE) {
2879 TRACE2(("cache command %d\n",cmdp->OpCode));
2880 if (ha->cache_feat & GDT_64BIT)
2881 ha->cmd_len =
2882 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
2883 else
2884 ha->cmd_len =
2885 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
2886 } else if (cmdp->Service == SCSIRAWSERVICE) {
2887 TRACE2(("raw command %d\n",cmdp->OpCode));
2888 if (ha->raw_feat & GDT_64BIT)
2889 ha->cmd_len =
2890 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
2891 else
2892 ha->cmd_len =
2893 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
2894 }
2895
2896 if (ha->cmd_len & 3)
2897 ha->cmd_len += (4 - (ha->cmd_len & 3));
2898
2899 if (ha->cmd_cnt > 0) {
2900 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2901 ha->ic_all_size) {
2902 TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
2903 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2904 return 0;
2905 }
2906 }
2907
2908 /* copy command */
2909 gdth_copy_command(ha);
2910 return cmd_index;
2911 }
2912
2913
2914 /* Controller event handling functions */
2915 static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
2916 ushort idx, gdth_evt_data *evt)
2917 {
2918 gdth_evt_str *e;
2919 struct timeval tv;
2920
2921 /* no GDTH_LOCK_HA() ! */
2922 TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
2923 if (source == 0) /* no source -> no event */
2924 return NULL;
2925
2926 if (ebuffer[elastidx].event_source == source &&
2927 ebuffer[elastidx].event_idx == idx &&
2928 ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
2929 !memcmp((char *)&ebuffer[elastidx].event_data.eu,
2930 (char *)&evt->eu, evt->size)) ||
2931 (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
2932 !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
2933 (char *)&evt->event_string)))) {
2934 e = &ebuffer[elastidx];
2935 do_gettimeofday(&tv);
2936 e->last_stamp = tv.tv_sec;
2937 ++e->same_count;
2938 } else {
2939 if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
2940 ++elastidx;
2941 if (elastidx == MAX_EVENTS)
2942 elastidx = 0;
2943 if (elastidx == eoldidx) { /* reached mark ? */
2944 ++eoldidx;
2945 if (eoldidx == MAX_EVENTS)
2946 eoldidx = 0;
2947 }
2948 }
2949 e = &ebuffer[elastidx];
2950 e->event_source = source;
2951 e->event_idx = idx;
2952 do_gettimeofday(&tv);
2953 e->first_stamp = e->last_stamp = tv.tv_sec;
2954 e->same_count = 1;
2955 e->event_data = *evt;
2956 e->application = 0;
2957 }
2958 return e;
2959 }
2960
2961 static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
2962 {
2963 gdth_evt_str *e;
2964 int eindex;
2965 ulong flags;
2966
2967 TRACE2(("gdth_read_event() handle %d\n", handle));
2968 spin_lock_irqsave(&ha->smp_lock, flags);
2969 if (handle == -1)
2970 eindex = eoldidx;
2971 else
2972 eindex = handle;
2973 estr->event_source = 0;
2974
2975 if (eindex >= MAX_EVENTS) {
2976 spin_unlock_irqrestore(&ha->smp_lock, flags);
2977 return eindex;
2978 }
2979 e = &ebuffer[eindex];
2980 if (e->event_source != 0) {
2981 if (eindex != elastidx) {
2982 if (++eindex == MAX_EVENTS)
2983 eindex = 0;
2984 } else {
2985 eindex = -1;
2986 }
2987 memcpy(estr, e, sizeof(gdth_evt_str));
2988 }
2989 spin_unlock_irqrestore(&ha->smp_lock, flags);
2990 return eindex;
2991 }
2992
2993 static void gdth_readapp_event(gdth_ha_str *ha,
2994 unchar application, gdth_evt_str *estr)
2995 {
2996 gdth_evt_str *e;
2997 int eindex;
2998 ulong flags;
2999 unchar found = FALSE;
3000
3001 TRACE2(("gdth_readapp_event() app. %d\n", application));
3002 spin_lock_irqsave(&ha->smp_lock, flags);
3003 eindex = eoldidx;
3004 for (;;) {
3005 e = &ebuffer[eindex];
3006 if (e->event_source == 0)
3007 break;
3008 if ((e->application & application) == 0) {
3009 e->application |= application;
3010 found = TRUE;
3011 break;
3012 }
3013 if (eindex == elastidx)
3014 break;
3015 if (++eindex == MAX_EVENTS)
3016 eindex = 0;
3017 }
3018 if (found)
3019 memcpy(estr, e, sizeof(gdth_evt_str));
3020 else
3021 estr->event_source = 0;
3022 spin_unlock_irqrestore(&ha->smp_lock, flags);
3023 }
3024
3025 static void gdth_clear_events(void)
3026 {
3027 TRACE(("gdth_clear_events()"));
3028
3029 eoldidx = elastidx = 0;
3030 ebuffer[0].event_source = 0;
3031 }
3032
3033
3034 /* SCSI interface functions */
3035
3036 static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
3037 int gdth_from_wait, int* pIndex)
3038 {
3039 gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
3040 gdt6_dpram_str __iomem *dp6_ptr;
3041 gdt2_dpram_str __iomem *dp2_ptr;
3042 Scsi_Cmnd *scp;
3043 int rval, i;
3044 unchar IStatus;
3045 ushort Service;
3046 ulong flags = 0;
3047 #ifdef INT_COAL
3048 int coalesced = FALSE;
3049 int next = FALSE;
3050 gdth_coal_status *pcs = NULL;
3051 int act_int_coal = 0;
3052 #endif
3053
3054 TRACE(("gdth_interrupt() IRQ %d\n", ha->irq));
3055
3056 /* if polling and not from gdth_wait() -> return */
3057 if (gdth_polling) {
3058 if (!gdth_from_wait) {
3059 return IRQ_HANDLED;
3060 }
3061 }
3062
3063 if (!gdth_polling)
3064 spin_lock_irqsave(&ha->smp_lock, flags);
3065
3066 /* search controller */
3067 IStatus = gdth_get_status(ha);
3068 if (IStatus == 0) {
3069 /* spurious interrupt */
3070 if (!gdth_polling)
3071 spin_unlock_irqrestore(&ha->smp_lock, flags);
3072 return IRQ_HANDLED;
3073 }
3074
3075 #ifdef GDTH_STATISTICS
3076 ++act_ints;
3077 #endif
3078
3079 #ifdef INT_COAL
3080 /* See if the fw is returning coalesced status */
3081 if (IStatus == COALINDEX) {
3082 /* Coalesced status. Setup the initial status
3083 buffer pointer and flags */
3084 pcs = ha->coal_stat;
3085 coalesced = TRUE;
3086 next = TRUE;
3087 }
3088
3089 do {
3090 if (coalesced) {
3091 /* For coalesced requests all status
3092 information is found in the status buffer */
3093 IStatus = (unchar)(pcs->status & 0xff);
3094 }
3095 #endif
3096
3097 if (ha->type == GDT_EISA) {
3098 if (IStatus & 0x80) { /* error flag */
3099 IStatus &= ~0x80;
3100 ha->status = inw(ha->bmic + MAILBOXREG+8);
3101 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3102 } else /* no error */
3103 ha->status = S_OK;
3104 ha->info = inl(ha->bmic + MAILBOXREG+12);
3105 ha->service = inw(ha->bmic + MAILBOXREG+10);
3106 ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3107
3108 outb(0xff, ha->bmic + EDOORREG); /* acknowledge interrupt */
3109 outb(0x00, ha->bmic + SEMA1REG); /* reset status semaphore */
3110 } else if (ha->type == GDT_ISA) {
3111 dp2_ptr = ha->brd;
3112 if (IStatus & 0x80) { /* error flag */
3113 IStatus &= ~0x80;
3114 ha->status = readw(&dp2_ptr->u.ic.Status);
3115 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3116 } else /* no error */
3117 ha->status = S_OK;
3118 ha->info = readl(&dp2_ptr->u.ic.Info[0]);
3119 ha->service = readw(&dp2_ptr->u.ic.Service);
3120 ha->info2 = readl(&dp2_ptr->u.ic.Info[1]);
3121
3122 writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3123 writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3124 writeb(0, &dp2_ptr->io.Sema1); /* reset status semaphore */
3125 } else if (ha->type == GDT_PCI) {
3126 dp6_ptr = ha->brd;
3127 if (IStatus & 0x80) { /* error flag */
3128 IStatus &= ~0x80;
3129 ha->status = readw(&dp6_ptr->u.ic.Status);
3130 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3131 } else /* no error */
3132 ha->status = S_OK;
3133 ha->info = readl(&dp6_ptr->u.ic.Info[0]);
3134 ha->service = readw(&dp6_ptr->u.ic.Service);
3135 ha->info2 = readl(&dp6_ptr->u.ic.Info[1]);
3136
3137 writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3138 writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3139 writeb(0, &dp6_ptr->io.Sema1); /* reset status semaphore */
3140 } else if (ha->type == GDT_PCINEW) {
3141 if (IStatus & 0x80) { /* error flag */
3142 IStatus &= ~0x80;
3143 ha->status = inw(PTR2USHORT(&ha->plx->status));
3144 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3145 } else
3146 ha->status = S_OK;
3147 ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3148 ha->service = inw(PTR2USHORT(&ha->plx->service));
3149 ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3150
3151 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3152 outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3153 } else if (ha->type == GDT_PCIMPR) {
3154 dp6m_ptr = ha->brd;
3155 if (IStatus & 0x80) { /* error flag */
3156 IStatus &= ~0x80;
3157 #ifdef INT_COAL
3158 if (coalesced)
3159 ha->status = pcs->ext_status & 0xffff;
3160 else
3161 #endif
3162 ha->status = readw(&dp6m_ptr->i960r.status);
3163 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3164 } else /* no error */
3165 ha->status = S_OK;
3166 #ifdef INT_COAL
3167 /* get information */
3168 if (coalesced) {
3169 ha->info = pcs->info0;
3170 ha->info2 = pcs->info1;
3171 ha->service = (pcs->ext_status >> 16) & 0xffff;
3172 } else
3173 #endif
3174 {
3175 ha->info = readl(&dp6m_ptr->i960r.info[0]);
3176 ha->service = readw(&dp6m_ptr->i960r.service);
3177 ha->info2 = readl(&dp6m_ptr->i960r.info[1]);
3178 }
3179 /* event string */
3180 if (IStatus == ASYNCINDEX) {
3181 if (ha->service != SCREENSERVICE &&
3182 (ha->fw_vers & 0xff) >= 0x1a) {
3183 ha->dvr.severity = readb
3184 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3185 for (i = 0; i < 256; ++i) {
3186 ha->dvr.event_string[i] = readb
3187 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3188 if (ha->dvr.event_string[i] == 0)
3189 break;
3190 }
3191 }
3192 }
3193 #ifdef INT_COAL
3194 /* Make sure that non coalesced interrupts get cleared
3195 before being handled by gdth_async_event/gdth_sync_event */
3196 if (!coalesced)
3197 #endif
3198 {
3199 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3200 writeb(0, &dp6m_ptr->i960r.sema1_reg);
3201 }
3202 } else {
3203 TRACE2(("gdth_interrupt() unknown controller type\n"));
3204 if (!gdth_polling)
3205 spin_unlock_irqrestore(&ha->smp_lock, flags);
3206 return IRQ_HANDLED;
3207 }
3208
3209 TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3210 IStatus,ha->status,ha->info));
3211
3212 if (gdth_from_wait) {
3213 *pIndex = (int)IStatus;
3214 }
3215
3216 if (IStatus == ASYNCINDEX) {
3217 TRACE2(("gdth_interrupt() async. event\n"));
3218 gdth_async_event(ha);
3219 if (!gdth_polling)
3220 spin_unlock_irqrestore(&ha->smp_lock, flags);
3221 gdth_next(ha);
3222 return IRQ_HANDLED;
3223 }
3224
3225 if (IStatus == SPEZINDEX) {
3226 TRACE2(("Service unknown or not initialized !\n"));
3227 ha->dvr.size = sizeof(ha->dvr.eu.driver);
3228 ha->dvr.eu.driver.ionode = ha->hanum;
3229 gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3230 if (!gdth_polling)
3231 spin_unlock_irqrestore(&ha->smp_lock, flags);
3232 return IRQ_HANDLED;
3233 }
3234 scp = ha->cmd_tab[IStatus-2].cmnd;
3235 Service = ha->cmd_tab[IStatus-2].service;
3236 ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3237 if (scp == UNUSED_CMND) {
3238 TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3239 ha->dvr.size = sizeof(ha->dvr.eu.driver);
3240 ha->dvr.eu.driver.ionode = ha->hanum;
3241 ha->dvr.eu.driver.index = IStatus;
3242 gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3243 if (!gdth_polling)
3244 spin_unlock_irqrestore(&ha->smp_lock, flags);
3245 return IRQ_HANDLED;
3246 }
3247 if (scp == INTERNAL_CMND) {
3248 TRACE(("gdth_interrupt() answer to internal command\n"));
3249 if (!gdth_polling)
3250 spin_unlock_irqrestore(&ha->smp_lock, flags);
3251 return IRQ_HANDLED;
3252 }
3253
3254 TRACE(("gdth_interrupt() sync. status\n"));
3255 rval = gdth_sync_event(ha,Service,IStatus,scp);
3256 if (!gdth_polling)
3257 spin_unlock_irqrestore(&ha->smp_lock, flags);
3258 if (rval == 2) {
3259 gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority);
3260 } else if (rval == 1) {
3261 gdth_scsi_done(scp);
3262 }
3263
3264 #ifdef INT_COAL
3265 if (coalesced) {
3266 /* go to the next status in the status buffer */
3267 ++pcs;
3268 #ifdef GDTH_STATISTICS
3269 ++act_int_coal;
3270 if (act_int_coal > max_int_coal) {
3271 max_int_coal = act_int_coal;
3272 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3273 }
3274 #endif
3275 /* see if there is another status */
3276 if (pcs->status == 0)
3277 /* Stop the coalesce loop */
3278 next = FALSE;
3279 }
3280 } while (next);
3281
3282 /* coalescing only for new GDT_PCIMPR controllers available */
3283 if (ha->type == GDT_PCIMPR && coalesced) {
3284 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3285 writeb(0, &dp6m_ptr->i960r.sema1_reg);
3286 }
3287 #endif
3288
3289 gdth_next(ha);
3290 return IRQ_HANDLED;
3291 }
3292
3293 static irqreturn_t gdth_interrupt(int irq, void *dev_id)
3294 {
3295 gdth_ha_str *ha = dev_id;
3296
3297 return __gdth_interrupt(ha, false, NULL);
3298 }
3299
3300 static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
3301 Scsi_Cmnd *scp)
3302 {
3303 gdth_msg_str *msg;
3304 gdth_cmd_str *cmdp;
3305 unchar b, t;
3306 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
3307
3308 cmdp = ha->pccb;
3309 TRACE(("gdth_sync_event() serv %d status %d\n",
3310 service,ha->status));
3311
3312 if (service == SCREENSERVICE) {
3313 msg = ha->pmsg;
3314 TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3315 msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3316 if (msg->msg_len > MSGLEN+1)
3317 msg->msg_len = MSGLEN+1;
3318 if (msg->msg_len)
3319 if (!(msg->msg_answer && msg->msg_ext)) {
3320 msg->msg_text[msg->msg_len] = '\0';
3321 printk("%s",msg->msg_text);
3322 }
3323
3324 if (msg->msg_ext && !msg->msg_answer) {
3325 while (gdth_test_busy(ha))
3326 gdth_delay(0);
3327 cmdp->Service = SCREENSERVICE;
3328 cmdp->RequestBuffer = SCREEN_CMND;
3329 gdth_get_cmd_index(ha);
3330 gdth_set_sema0(ha);
3331 cmdp->OpCode = GDT_READ;
3332 cmdp->BoardNode = LOCALBOARD;
3333 cmdp->u.screen.reserved = 0;
3334 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3335 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3336 ha->cmd_offs_dpmem = 0;
3337 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3338 + sizeof(ulong64);
3339 ha->cmd_cnt = 0;
3340 gdth_copy_command(ha);
3341 gdth_release_event(ha);
3342 return 0;
3343 }
3344
3345 if (msg->msg_answer && msg->msg_alen) {
3346 /* default answers (getchar() not possible) */
3347 if (msg->msg_alen == 1) {
3348 msg->msg_alen = 0;
3349 msg->msg_len = 1;
3350 msg->msg_text[0] = 0;
3351 } else {
3352 msg->msg_alen -= 2;
3353 msg->msg_len = 2;
3354 msg->msg_text[0] = 1;
3355 msg->msg_text[1] = 0;
3356 }
3357 msg->msg_ext = 0;
3358 msg->msg_answer = 0;
3359 while (gdth_test_busy(ha))
3360 gdth_delay(0);
3361 cmdp->Service = SCREENSERVICE;
3362 cmdp->RequestBuffer = SCREEN_CMND;
3363 gdth_get_cmd_index(ha);
3364 gdth_set_sema0(ha);
3365 cmdp->OpCode = GDT_WRITE;
3366 cmdp->BoardNode = LOCALBOARD;
3367 cmdp->u.screen.reserved = 0;
3368 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3369 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3370 ha->cmd_offs_dpmem = 0;
3371 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3372 + sizeof(ulong64);
3373 ha->cmd_cnt = 0;
3374 gdth_copy_command(ha);
3375 gdth_release_event(ha);
3376 return 0;
3377 }
3378 printk("\n");
3379
3380 } else {
3381 b = scp->device->channel;
3382 t = scp->device->id;
3383 if (cmndinfo->OpCode == -1 && b != ha->virt_bus) {
3384 ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3385 }
3386 /* cache or raw service */
3387 if (ha->status == S_BSY) {
3388 TRACE2(("Controller busy -> retry !\n"));
3389 if (cmndinfo->OpCode == GDT_MOUNT)
3390 cmndinfo->OpCode = GDT_CLUST_INFO;
3391 /* retry */
3392 return 2;
3393 }
3394 if (gdth_bufflen(scp))
3395 pci_unmap_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
3396 cmndinfo->dma_dir);
3397
3398 if (cmndinfo->sense_paddr)
3399 pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16,
3400 PCI_DMA_FROMDEVICE);
3401
3402 if (ha->status == S_OK) {
3403 cmndinfo->status = S_OK;
3404 cmndinfo->info = ha->info;
3405 if (cmndinfo->OpCode != -1) {
3406 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
3407 cmndinfo->OpCode));
3408 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
3409 if (cmndinfo->OpCode == GDT_CLUST_INFO) {
3410 ha->hdr[t].cluster_type = (unchar)ha->info;
3411 if (!(ha->hdr[t].cluster_type &
3412 CLUSTER_MOUNTED)) {
3413 /* NOT MOUNTED -> MOUNT */
3414 cmndinfo->OpCode = GDT_MOUNT;
3415 if (ha->hdr[t].cluster_type &
3416 CLUSTER_RESERVED) {
3417 /* cluster drive RESERVED (on the other node) */
3418 cmndinfo->phase = -2; /* reservation conflict */
3419 }
3420 } else {
3421 cmndinfo->OpCode = -1;
3422 }
3423 } else {
3424 if (cmndinfo->OpCode == GDT_MOUNT) {
3425 ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3426 ha->hdr[t].media_changed = TRUE;
3427 } else if (cmndinfo->OpCode == GDT_UNMOUNT) {
3428 ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3429 ha->hdr[t].media_changed = TRUE;
3430 }
3431 cmndinfo->OpCode = -1;
3432 }
3433 /* retry */
3434 cmndinfo->priority = HIGH_PRI;
3435 return 2;
3436 } else {
3437 /* RESERVE/RELEASE ? */
3438 if (scp->cmnd[0] == RESERVE) {
3439 ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3440 } else if (scp->cmnd[0] == RELEASE) {
3441 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3442 }
3443 scp->result = DID_OK << 16;
3444 scp->sense_buffer[0] = 0;
3445 }
3446 } else {
3447 cmndinfo->status = ha->status;
3448 cmndinfo->info = ha->info;
3449
3450 if (cmndinfo->OpCode != -1) {
3451 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
3452 cmndinfo->OpCode, ha->status));
3453 if (cmndinfo->OpCode == GDT_SCAN_START ||
3454 cmndinfo->OpCode == GDT_SCAN_END) {
3455 cmndinfo->OpCode = -1;
3456 /* retry */
3457 cmndinfo->priority = HIGH_PRI;
3458 return 2;
3459 }
3460 memset((char*)scp->sense_buffer,0,16);
3461 scp->sense_buffer[0] = 0x70;
3462 scp->sense_buffer[2] = NOT_READY;
3463 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3464 } else if (service == CACHESERVICE) {
3465 if (ha->status == S_CACHE_UNKNOWN &&
3466 (ha->hdr[t].cluster_type &
3467 CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3468 /* bus reset -> force GDT_CLUST_INFO */
3469 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3470 }
3471 memset((char*)scp->sense_buffer,0,16);
3472 if (ha->status == (ushort)S_CACHE_RESERV) {
3473 scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3474 } else {
3475 scp->sense_buffer[0] = 0x70;
3476 scp->sense_buffer[2] = NOT_READY;
3477 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3478 }
3479 if (!cmndinfo->internal_command) {
3480 ha->dvr.size = sizeof(ha->dvr.eu.sync);
3481 ha->dvr.eu.sync.ionode = ha->hanum;
3482 ha->dvr.eu.sync.service = service;
3483 ha->dvr.eu.sync.status = ha->status;
3484 ha->dvr.eu.sync.info = ha->info;
3485 ha->dvr.eu.sync.hostdrive = t;
3486 if (ha->status >= 0x8000)
3487 gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3488 else
3489 gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3490 }
3491 } else {
3492 /* sense buffer filled from controller firmware (DMA) */
3493 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3494 scp->result = DID_BAD_TARGET << 16;
3495 } else {
3496 scp->result = (DID_OK << 16) | ha->info;
3497 }
3498 }
3499 }
3500 if (!cmndinfo->wait_for_completion)
3501 cmndinfo->wait_for_completion++;
3502 else
3503 return 1;
3504 }
3505
3506 return 0;
3507 }
3508
3509 static char *async_cache_tab[] = {
3510 /* 0*/ "\011\000\002\002\002\004\002\006\004"
3511 "GDT HA %u, service %u, async. status %u/%lu unknown",
3512 /* 1*/ "\011\000\002\002\002\004\002\006\004"
3513 "GDT HA %u, service %u, async. status %u/%lu unknown",
3514 /* 2*/ "\005\000\002\006\004"
3515 "GDT HA %u, Host Drive %lu not ready",
3516 /* 3*/ "\005\000\002\006\004"
3517 "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",
3518 /* 4*/ "\005\000\002\006\004"
3519 "GDT HA %u, mirror update on Host Drive %lu failed",
3520 /* 5*/ "\005\000\002\006\004"
3521 "GDT HA %u, Mirror Drive %lu failed",
3522 /* 6*/ "\005\000\002\006\004"
3523 "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",
3524 /* 7*/ "\005\000\002\006\004"
3525 "GDT HA %u, Host Drive %lu write protected",
3526 /* 8*/ "\005\000\002\006\004"
3527 "GDT HA %u, media changed in Host Drive %lu",
3528 /* 9*/ "\005\000\002\006\004"
3529 "GDT HA %u, Host Drive %lu is offline",
3530 /*10*/ "\005\000\002\006\004"
3531 "GDT HA %u, media change of Mirror Drive %lu",
3532 /*11*/ "\005\000\002\006\004"
3533 "GDT HA %u, Mirror Drive %lu is write protected",
3534 /*12*/ "\005\000\002\006\004"
3535 "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3536 /*13*/ "\007\000\002\006\002\010\002"
3537 "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3538 /*14*/ "\005\000\002\006\002"
3539 "GDT HA %u, Array Drive %u: FAIL state entered",
3540 /*15*/ "\005\000\002\006\002"
3541 "GDT HA %u, Array Drive %u: error",
3542 /*16*/ "\007\000\002\006\002\010\002"
3543 "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3544 /*17*/ "\005\000\002\006\002"
3545 "GDT HA %u, Array Drive %u: parity build failed",
3546 /*18*/ "\005\000\002\006\002"
3547 "GDT HA %u, Array Drive %u: drive rebuild failed",
3548 /*19*/ "\005\000\002\010\002"
3549 "GDT HA %u, Test of Hot Fix %u failed",
3550 /*20*/ "\005\000\002\006\002"
3551 "GDT HA %u, Array Drive %u: drive build finished successfully",
3552 /*21*/ "\005\000\002\006\002"
3553 "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3554 /*22*/ "\007\000\002\006\002\010\002"
3555 "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3556 /*23*/ "\005\000\002\006\002"
3557 "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3558 /*24*/ "\005\000\002\010\002"
3559 "GDT HA %u, mirror update on Cache Drive %u completed",
3560 /*25*/ "\005\000\002\010\002"
3561 "GDT HA %u, mirror update on Cache Drive %lu failed",
3562 /*26*/ "\005\000\002\006\002"
3563 "GDT HA %u, Array Drive %u: drive rebuild started",
3564 /*27*/ "\005\000\002\012\001"
3565 "GDT HA %u, Fault bus %u: SHELF OK detected",
3566 /*28*/ "\005\000\002\012\001"
3567 "GDT HA %u, Fault bus %u: SHELF not OK detected",
3568 /*29*/ "\007\000\002\012\001\013\001"
3569 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3570 /*30*/ "\007\000\002\012\001\013\001"
3571 "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3572 /*31*/ "\007\000\002\012\001\013\001"
3573 "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3574 /*32*/ "\007\000\002\012\001\013\001"
3575 "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3576 /*33*/ "\007\000\002\012\001\013\001"
3577 "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3578 /*34*/ "\011\000\002\012\001\013\001\006\004"
3579 "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3580 /*35*/ "\007\000\002\012\001\013\001"
3581 "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3582 /*36*/ "\007\000\002\012\001\013\001"
3583 "GDT HA %u, Fault bus %u, ID %u: disk not available",
3584 /*37*/ "\007\000\002\012\001\006\004"
3585 "GDT HA %u, Fault bus %u: swap detected (%lu)",
3586 /*38*/ "\007\000\002\012\001\013\001"
3587 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3588 /*39*/ "\007\000\002\012\001\013\001"
3589 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3590 /*40*/ "\007\000\002\012\001\013\001"
3591 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3592 /*41*/ "\007\000\002\012\001\013\001"
3593 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3594 /*42*/ "\005\000\002\006\002"
3595 "GDT HA %u, Array Drive %u: drive build started",
3596 /*43*/ "\003\000\002"
3597 "GDT HA %u, DRAM parity error detected",
3598 /*44*/ "\005\000\002\006\002"
3599 "GDT HA %u, Mirror Drive %u: update started",
3600 /*45*/ "\007\000\002\006\002\010\002"
3601 "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3602 /*46*/ "\005\000\002\006\002"
3603 "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3604 /*47*/ "\005\000\002\006\002"
3605 "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3606 /*48*/ "\005\000\002\006\002"
3607 "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3608 /*49*/ "\005\000\002\006\002"
3609 "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3610 /*50*/ "\007\000\002\012\001\013\001"
3611 "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3612 /*51*/ "\005\000\002\006\002"
3613 "GDT HA %u, Array Drive %u: expand started",
3614 /*52*/ "\005\000\002\006\002"
3615 "GDT HA %u, Array Drive %u: expand finished successfully",
3616 /*53*/ "\005\000\002\006\002"
3617 "GDT HA %u, Array Drive %u: expand failed",
3618 /*54*/ "\003\000\002"
3619 "GDT HA %u, CPU temperature critical",
3620 /*55*/ "\003\000\002"
3621 "GDT HA %u, CPU temperature OK",
3622 /*56*/ "\005\000\002\006\004"
3623 "GDT HA %u, Host drive %lu created",
3624 /*57*/ "\005\000\002\006\002"
3625 "GDT HA %u, Array Drive %u: expand restarted",
3626 /*58*/ "\005\000\002\006\002"
3627 "GDT HA %u, Array Drive %u: expand stopped",
3628 /*59*/ "\005\000\002\010\002"
3629 "GDT HA %u, Mirror Drive %u: drive build quited",
3630 /*60*/ "\005\000\002\006\002"
3631 "GDT HA %u, Array Drive %u: parity build quited",
3632 /*61*/ "\005\000\002\006\002"
3633 "GDT HA %u, Array Drive %u: drive rebuild quited",
3634 /*62*/ "\005\000\002\006\002"
3635 "GDT HA %u, Array Drive %u: parity verify started",
3636 /*63*/ "\005\000\002\006\002"
3637 "GDT HA %u, Array Drive %u: parity verify done",
3638 /*64*/ "\005\000\002\006\002"
3639 "GDT HA %u, Array Drive %u: parity verify failed",
3640 /*65*/ "\005\000\002\006\002"
3641 "GDT HA %u, Array Drive %u: parity error detected",
3642 /*66*/ "\005\000\002\006\002"
3643 "GDT HA %u, Array Drive %u: parity verify quited",
3644 /*67*/ "\005\000\002\006\002"
3645 "GDT HA %u, Host Drive %u reserved",
3646 /*68*/ "\005\000\002\006\002"
3647 "GDT HA %u, Host Drive %u mounted and released",
3648 /*69*/ "\005\000\002\006\002"
3649 "GDT HA %u, Host Drive %u released",
3650 /*70*/ "\003\000\002"
3651 "GDT HA %u, DRAM error detected and corrected with ECC",
3652 /*71*/ "\003\000\002"
3653 "GDT HA %u, Uncorrectable DRAM error detected with ECC",
3654 /*72*/ "\011\000\002\012\001\013\001\014\001"
3655 "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
3656 /*73*/ "\005\000\002\006\002"
3657 "GDT HA %u, Host drive %u resetted locally",
3658 /*74*/ "\005\000\002\006\002"
3659 "GDT HA %u, Host drive %u resetted remotely",
3660 /*75*/ "\003\000\002"
3661 "GDT HA %u, async. status 75 unknown",
3662 };
3663
3664
3665 static int gdth_async_event(gdth_ha_str *ha)
3666 {
3667 gdth_cmd_str *cmdp;
3668 int cmd_index;
3669
3670 cmdp= ha->pccb;
3671 TRACE2(("gdth_async_event() ha %d serv %d\n",
3672 ha->hanum, ha->service));
3673
3674 if (ha->service == SCREENSERVICE) {
3675 if (ha->status == MSG_REQUEST) {
3676 while (gdth_test_busy(ha))
3677 gdth_delay(0);
3678 cmdp->Service = SCREENSERVICE;
3679 cmdp->RequestBuffer = SCREEN_CMND;
3680 cmd_index = gdth_get_cmd_index(ha);
3681 gdth_set_sema0(ha);
3682 cmdp->OpCode = GDT_READ;
3683 cmdp->BoardNode = LOCALBOARD;
3684 cmdp->u.screen.reserved = 0;
3685 cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
3686 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3687 ha->cmd_offs_dpmem = 0;
3688 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3689 + sizeof(ulong64);
3690 ha->cmd_cnt = 0;
3691 gdth_copy_command(ha);
3692 if (ha->type == GDT_EISA)
3693 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
3694 else if (ha->type == GDT_ISA)
3695 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
3696 else
3697 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
3698 (ushort)((ha->brd_phys>>3)&0x1f));
3699 gdth_release_event(ha);
3700 }
3701
3702 } else {
3703 if (ha->type == GDT_PCIMPR &&
3704 (ha->fw_vers & 0xff) >= 0x1a) {
3705 ha->dvr.size = 0;
3706 ha->dvr.eu.async.ionode = ha->hanum;
3707 ha->dvr.eu.async.status = ha->status;
3708 /* severity and event_string already set! */
3709 } else {
3710 ha->dvr.size = sizeof(ha->dvr.eu.async);
3711 ha->dvr.eu.async.ionode = ha->hanum;
3712 ha->dvr.eu.async.service = ha->service;
3713 ha->dvr.eu.async.status = ha->status;
3714 ha->dvr.eu.async.info = ha->info;
3715 *(ulong32 *)ha->dvr.eu.async.scsi_coord = ha->info2;
3716 }
3717 gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
3718 gdth_log_event( &ha->dvr, NULL );
3719
3720 /* new host drive from expand? */
3721 if (ha->service == CACHESERVICE && ha->status == 56) {
3722 TRACE2(("gdth_async_event(): new host drive %d created\n",
3723 (ushort)ha->info));
3724 /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
3725 }
3726 }
3727 return 1;
3728 }
3729
3730 static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
3731 {
3732 gdth_stackframe stack;
3733 char *f = NULL;
3734 int i,j;
3735
3736 TRACE2(("gdth_log_event()\n"));
3737 if (dvr->size == 0) {
3738 if (buffer == NULL) {
3739 printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
3740 } else {
3741 sprintf(buffer,"Adapter %d: %s\n",
3742 dvr->eu.async.ionode,dvr->event_string);
3743 }
3744 } else if (dvr->eu.async.service == CACHESERVICE &&
3745 INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
3746 TRACE2(("GDT: Async. event cache service, event no.: %d\n",
3747 dvr->eu.async.status));
3748
3749 f = async_cache_tab[dvr->eu.async.status];
3750
3751 /* i: parameter to push, j: stack element to fill */
3752 for (j=0,i=1; i < f[0]; i+=2) {
3753 switch (f[i+1]) {
3754 case 4:
3755 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
3756 break;
3757 case 2:
3758 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
3759 break;
3760 case 1:
3761 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
3762 break;
3763 default:
3764 break;
3765 }
3766 }
3767
3768 if (buffer == NULL) {
3769 printk(&f[(int)f[0]],stack);
3770 printk("\n");
3771 } else {
3772 sprintf(buffer,&f[(int)f[0]],stack);
3773 }
3774
3775 } else {
3776 if (buffer == NULL) {
3777 printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
3778 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3779 } else {
3780 sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
3781 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3782 }
3783 }
3784 }
3785
3786 #ifdef GDTH_STATISTICS
3787 static void gdth_timeout(ulong data)
3788 {
3789 ulong32 i;
3790 Scsi_Cmnd *nscp;
3791 gdth_ha_str *ha;
3792 ulong flags;
3793
3794 ha = list_first_entry(&gdth_instances, gdth_ha_str, list);
3795 spin_lock_irqsave(&ha->smp_lock, flags);
3796
3797 for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
3798 if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
3799 ++act_stats;
3800
3801 for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
3802 ++act_rq;
3803
3804 TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
3805 act_ints, act_ios, act_stats, act_rq));
3806 act_ints = act_ios = 0;
3807
3808 gdth_timer.expires = jiffies + 30 * HZ;
3809 add_timer(&gdth_timer);
3810 spin_unlock_irqrestore(&ha->smp_lock, flags);
3811 }
3812 #endif
3813
3814 static void __init internal_setup(char *str,int *ints)
3815 {
3816 int i, argc;
3817 char *cur_str, *argv;
3818
3819 TRACE2(("internal_setup() str %s ints[0] %d\n",
3820 str ? str:"NULL", ints ? ints[0]:0));
3821
3822 /* read irq[] from ints[] */
3823 if (ints) {
3824 argc = ints[0];
3825 if (argc > 0) {
3826 if (argc > MAXHA)
3827 argc = MAXHA;
3828 for (i = 0; i < argc; ++i)
3829 irq[i] = ints[i+1];
3830 }
3831 }
3832
3833 /* analyse string */
3834 argv = str;
3835 while (argv && (cur_str = strchr(argv, ':'))) {
3836 int val = 0, c = *++cur_str;
3837
3838 if (c == 'n' || c == 'N')
3839 val = 0;
3840 else if (c == 'y' || c == 'Y')
3841 val = 1;
3842 else
3843 val = (int)simple_strtoul(cur_str, NULL, 0);
3844
3845 if (!strncmp(argv, "disable:", 8))
3846 disable = val;
3847 else if (!strncmp(argv, "reserve_mode:", 13))
3848 reserve_mode = val;
3849 else if (!strncmp(argv, "reverse_scan:", 13))
3850 reverse_scan = val;
3851 else if (!strncmp(argv, "hdr_channel:", 12))
3852 hdr_channel = val;
3853 else if (!strncmp(argv, "max_ids:", 8))
3854 max_ids = val;
3855 else if (!strncmp(argv, "rescan:", 7))
3856 rescan = val;
3857 else if (!strncmp(argv, "shared_access:", 14))
3858 shared_access = val;
3859 else if (!strncmp(argv, "probe_eisa_isa:", 15))
3860 probe_eisa_isa = val;
3861 else if (!strncmp(argv, "reserve_list:", 13)) {
3862 reserve_list[0] = val;
3863 for (i = 1; i < MAX_RES_ARGS; i++) {
3864 cur_str = strchr(cur_str, ',');
3865 if (!cur_str)
3866 break;
3867 if (!isdigit((int)*++cur_str)) {
3868 --cur_str;
3869 break;
3870 }
3871 reserve_list[i] =
3872 (int)simple_strtoul(cur_str, NULL, 0);
3873 }
3874 if (!cur_str)
3875 break;
3876 argv = ++cur_str;
3877 continue;
3878 }
3879
3880 if ((argv = strchr(argv, ',')))
3881 ++argv;
3882 }
3883 }
3884
3885 int __init option_setup(char *str)
3886 {
3887 int ints[MAXHA];
3888 char *cur = str;
3889 int i = 1;
3890
3891 TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
3892
3893 while (cur && isdigit(*cur) && i <= MAXHA) {
3894 ints[i++] = simple_strtoul(cur, NULL, 0);
3895 if ((cur = strchr(cur, ',')) != NULL) cur++;
3896 }
3897
3898 ints[0] = i - 1;
3899 internal_setup(cur, ints);
3900 return 1;
3901 }
3902
3903 static const char *gdth_ctr_name(gdth_ha_str *ha)
3904 {
3905 TRACE2(("gdth_ctr_name()\n"));
3906
3907 if (ha->type == GDT_EISA) {
3908 switch (ha->stype) {
3909 case GDT3_ID:
3910 return("GDT3000/3020");
3911 case GDT3A_ID:
3912 return("GDT3000A/3020A/3050A");
3913 case GDT3B_ID:
3914 return("GDT3000B/3010A");
3915 }
3916 } else if (ha->type == GDT_ISA) {
3917 return("GDT2000/2020");
3918 } else if (ha->type == GDT_PCI) {
3919 switch (ha->pdev->device) {
3920 case PCI_DEVICE_ID_VORTEX_GDT60x0:
3921 return("GDT6000/6020/6050");
3922 case PCI_DEVICE_ID_VORTEX_GDT6000B:
3923 return("GDT6000B/6010");
3924 }
3925 }
3926 /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
3927
3928 return("");
3929 }
3930
3931 static const char *gdth_info(struct Scsi_Host *shp)
3932 {
3933 gdth_ha_str *ha = shost_priv(shp);
3934
3935 TRACE2(("gdth_info()\n"));
3936 return ((const char *)ha->binfo.type_string);
3937 }
3938
3939 static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
3940 {
3941 gdth_ha_str *ha = shost_priv(scp->device->host);
3942 int i;
3943 ulong flags;
3944 Scsi_Cmnd *cmnd;
3945 unchar b;
3946
3947 TRACE2(("gdth_eh_bus_reset()\n"));
3948
3949 b = scp->device->channel;
3950
3951 /* clear command tab */
3952 spin_lock_irqsave(&ha->smp_lock, flags);
3953 for (i = 0; i < GDTH_MAXCMDS; ++i) {
3954 cmnd = ha->cmd_tab[i].cmnd;
3955 if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
3956 ha->cmd_tab[i].cmnd = UNUSED_CMND;
3957 }
3958 spin_unlock_irqrestore(&ha->smp_lock, flags);
3959
3960 if (b == ha->virt_bus) {
3961 /* host drives */
3962 for (i = 0; i < MAX_HDRIVES; ++i) {
3963 if (ha->hdr[i].present) {
3964 spin_lock_irqsave(&ha->smp_lock, flags);
3965 gdth_polling = TRUE;
3966 while (gdth_test_busy(ha))
3967 gdth_delay(0);
3968 if (gdth_internal_cmd(ha, CACHESERVICE,
3969 GDT_CLUST_RESET, i, 0, 0))
3970 ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
3971 gdth_polling = FALSE;
3972 spin_unlock_irqrestore(&ha->smp_lock, flags);
3973 }
3974 }
3975 } else {
3976 /* raw devices */
3977 spin_lock_irqsave(&ha->smp_lock, flags);
3978 for (i = 0; i < MAXID; ++i)
3979 ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
3980 gdth_polling = TRUE;
3981 while (gdth_test_busy(ha))
3982 gdth_delay(0);
3983 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESET_BUS,
3984 BUS_L2P(ha,b), 0, 0);
3985 gdth_polling = FALSE;
3986 spin_unlock_irqrestore(&ha->smp_lock, flags);
3987 }
3988 return SUCCESS;
3989 }
3990
3991 static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
3992 {
3993 unchar b, t;
3994 gdth_ha_str *ha = shost_priv(sdev->host);
3995 struct scsi_device *sd;
3996 unsigned capacity;
3997
3998 sd = sdev;
3999 capacity = cap;
4000 b = sd->channel;
4001 t = sd->id;
4002 TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", ha->hanum, b, t));
4003
4004 if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
4005 /* raw device or host drive without mapping information */
4006 TRACE2(("Evaluate mapping\n"));
4007 gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
4008 } else {
4009 ip[0] = ha->hdr[t].heads;
4010 ip[1] = ha->hdr[t].secs;
4011 ip[2] = capacity / ip[0] / ip[1];
4012 }
4013
4014 TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
4015 ip[0],ip[1],ip[2]));
4016 return 0;
4017 }
4018
4019
4020 static int gdth_queuecommand(struct scsi_cmnd *scp,
4021 void (*done)(struct scsi_cmnd *))
4022 {
4023 gdth_ha_str *ha = shost_priv(scp->device->host);
4024 struct gdth_cmndinfo *cmndinfo;
4025
4026 TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
4027
4028 cmndinfo = gdth_get_cmndinfo(ha);
4029 BUG_ON(!cmndinfo);
4030
4031 scp->scsi_done = done;
4032 gdth_update_timeout(scp, scp->timeout_per_command * 6);
4033 cmndinfo->priority = DEFAULT_PRI;
4034
4035 gdth_set_bufflen(scp, scsi_bufflen(scp));
4036 gdth_set_sg_count(scp, scsi_sg_count(scp));
4037 gdth_set_sglist(scp, scsi_sglist(scp));
4038
4039 return __gdth_queuecommand(ha, scp, cmndinfo);
4040 }
4041
4042 static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
4043 struct gdth_cmndinfo *cmndinfo)
4044 {
4045 scp->host_scribble = (unsigned char *)cmndinfo;
4046 cmndinfo->wait_for_completion = 1;
4047 cmndinfo->phase = -1;
4048 cmndinfo->OpCode = -1;
4049
4050 #ifdef GDTH_STATISTICS
4051 ++act_ios;
4052 #endif
4053
4054 gdth_putq(ha, scp, cmndinfo->priority);
4055 gdth_next(ha);
4056 return 0;
4057 }
4058
4059
4060 static int gdth_open(struct inode *inode, struct file *filep)
4061 {
4062 gdth_ha_str *ha;
4063
4064 list_for_each_entry(ha, &gdth_instances, list) {
4065 if (!ha->sdev)
4066 ha->sdev = scsi_get_host_dev(ha->shost);
4067 }
4068
4069 TRACE(("gdth_open()\n"));
4070 return 0;
4071 }
4072
4073 static int gdth_close(struct inode *inode, struct file *filep)
4074 {
4075 TRACE(("gdth_close()\n"));
4076 return 0;
4077 }
4078
4079 static int ioc_event(void __user *arg)
4080 {
4081 gdth_ioctl_event evt;
4082 gdth_ha_str *ha;
4083 ulong flags;
4084
4085 if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)))
4086 return -EFAULT;
4087 ha = gdth_find_ha(evt.ionode);
4088 if (!ha)
4089 return -EFAULT;
4090
4091 if (evt.erase == 0xff) {
4092 if (evt.event.event_source == ES_TEST)
4093 evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4094 else if (evt.event.event_source == ES_DRIVER)
4095 evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4096 else if (evt.event.event_source == ES_SYNC)
4097 evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
4098 else
4099 evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
4100 spin_lock_irqsave(&ha->smp_lock, flags);
4101 gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
4102 &evt.event.event_data);
4103 spin_unlock_irqrestore(&ha->smp_lock, flags);
4104 } else if (evt.erase == 0xfe) {
4105 gdth_clear_events();
4106 } else if (evt.erase == 0) {
4107 evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
4108 } else {
4109 gdth_readapp_event(ha, evt.erase, &evt.event);
4110 }
4111 if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
4112 return -EFAULT;
4113 return 0;
4114 }
4115
4116 static int ioc_lockdrv(void __user *arg)
4117 {
4118 gdth_ioctl_lockdrv ldrv;
4119 unchar i, j;
4120 ulong flags;
4121 gdth_ha_str *ha;
4122
4123 if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)))
4124 return -EFAULT;
4125 ha = gdth_find_ha(ldrv.ionode);
4126 if (!ha)
4127 return -EFAULT;
4128
4129 for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
4130 j = ldrv.drives[i];
4131 if (j >= MAX_HDRIVES || !ha->hdr[j].present)
4132 continue;
4133 if (ldrv.lock) {
4134 spin_lock_irqsave(&ha->smp_lock, flags);
4135 ha->hdr[j].lock = 1;
4136 spin_unlock_irqrestore(&ha->smp_lock, flags);
4137 gdth_wait_completion(ha, ha->bus_cnt, j);
4138 gdth_stop_timeout(ha, ha->bus_cnt, j);
4139 } else {
4140 spin_lock_irqsave(&ha->smp_lock, flags);
4141 ha->hdr[j].lock = 0;
4142 spin_unlock_irqrestore(&ha->smp_lock, flags);
4143 gdth_start_timeout(ha, ha->bus_cnt, j);
4144 gdth_next(ha);
4145 }
4146 }
4147 return 0;
4148 }
4149
4150 static int ioc_resetdrv(void __user *arg, char *cmnd)
4151 {
4152 gdth_ioctl_reset res;
4153 gdth_cmd_str cmd;
4154 gdth_ha_str *ha;
4155 int rval;
4156
4157 if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
4158 res.number >= MAX_HDRIVES)
4159 return -EFAULT;
4160 ha = gdth_find_ha(res.ionode);
4161 if (!ha)
4162 return -EFAULT;
4163
4164 if (!ha->hdr[res.number].present)
4165 return 0;
4166 memset(&cmd, 0, sizeof(gdth_cmd_str));
4167 cmd.Service = CACHESERVICE;
4168 cmd.OpCode = GDT_CLUST_RESET;
4169 if (ha->cache_feat & GDT_64BIT)
4170 cmd.u.cache64.DeviceNo = res.number;
4171 else
4172 cmd.u.cache.DeviceNo = res.number;
4173
4174 rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
4175 if (rval < 0)
4176 return rval;
4177 res.status = rval;
4178
4179 if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
4180 return -EFAULT;
4181 return 0;
4182 }
4183
4184 static int ioc_general(void __user *arg, char *cmnd)
4185 {
4186 gdth_ioctl_general gen;
4187 char *buf = NULL;
4188 ulong64 paddr;
4189 gdth_ha_str *ha;
4190 int rval;
4191
4192 if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)))
4193 return -EFAULT;
4194 ha = gdth_find_ha(gen.ionode);
4195 if (!ha)
4196 return -EFAULT;
4197 if (gen.data_len + gen.sense_len != 0) {
4198 if (!(buf = gdth_ioctl_alloc(ha, gen.data_len + gen.sense_len,
4199 FALSE, &paddr)))
4200 return -EFAULT;
4201 if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
4202 gen.data_len + gen.sense_len)) {
4203 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4204 return -EFAULT;
4205 }
4206
4207 if (gen.command.OpCode == GDT_IOCTL) {
4208 gen.command.u.ioctl.p_param = paddr;
4209 } else if (gen.command.Service == CACHESERVICE) {
4210 if (ha->cache_feat & GDT_64BIT) {
4211 /* copy elements from 32-bit IOCTL structure */
4212 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
4213 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
4214 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
4215 /* addresses */
4216 if (ha->cache_feat & SCATTER_GATHER) {
4217 gen.command.u.cache64.DestAddr = (ulong64)-1;
4218 gen.command.u.cache64.sg_canz = 1;
4219 gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
4220 gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
4221 gen.command.u.cache64.sg_lst[1].sg_len = 0;
4222 } else {
4223 gen.command.u.cache64.DestAddr = paddr;
4224 gen.command.u.cache64.sg_canz = 0;
4225 }
4226 } else {
4227 if (ha->cache_feat & SCATTER_GATHER) {
4228 gen.command.u.cache.DestAddr = 0xffffffff;
4229 gen.command.u.cache.sg_canz = 1;
4230 gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
4231 gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
4232 gen.command.u.cache.sg_lst[1].sg_len = 0;
4233 } else {
4234 gen.command.u.cache.DestAddr = paddr;
4235 gen.command.u.cache.sg_canz = 0;
4236 }
4237 }
4238 } else if (gen.command.Service == SCSIRAWSERVICE) {
4239 if (ha->raw_feat & GDT_64BIT) {
4240 /* copy elements from 32-bit IOCTL structure */
4241 char cmd[16];
4242 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
4243 gen.command.u.raw64.bus = gen.command.u.raw.bus;
4244 gen.command.u.raw64.lun = gen.command.u.raw.lun;
4245 gen.command.u.raw64.target = gen.command.u.raw.target;
4246 memcpy(cmd, gen.command.u.raw.cmd, 16);
4247 memcpy(gen.command.u.raw64.cmd, cmd, 16);
4248 gen.command.u.raw64.clen = gen.command.u.raw.clen;
4249 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
4250 gen.command.u.raw64.direction = gen.command.u.raw.direction;
4251 /* addresses */
4252 if (ha->raw_feat & SCATTER_GATHER) {
4253 gen.command.u.raw64.sdata = (ulong64)-1;
4254 gen.command.u.raw64.sg_ranz = 1;
4255 gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
4256 gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
4257 gen.command.u.raw64.sg_lst[1].sg_len = 0;
4258 } else {
4259 gen.command.u.raw64.sdata = paddr;
4260 gen.command.u.raw64.sg_ranz = 0;
4261 }
4262 gen.command.u.raw64.sense_data = paddr + gen.data_len;
4263 } else {
4264 if (ha->raw_feat & SCATTER_GATHER) {
4265 gen.command.u.raw.sdata = 0xffffffff;
4266 gen.command.u.raw.sg_ranz = 1;
4267 gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
4268 gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
4269 gen.command.u.raw.sg_lst[1].sg_len = 0;
4270 } else {
4271 gen.command.u.raw.sdata = paddr;
4272 gen.command.u.raw.sg_ranz = 0;
4273 }
4274 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
4275 }
4276 } else {
4277 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4278 return -EFAULT;
4279 }
4280 }
4281
4282 rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
4283 if (rval < 0)
4284 return rval;
4285 gen.status = rval;
4286
4287 if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
4288 gen.data_len + gen.sense_len)) {
4289 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4290 return -EFAULT;
4291 }
4292 if (copy_to_user(arg, &gen,
4293 sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
4294 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4295 return -EFAULT;
4296 }
4297 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
4298 return 0;
4299 }
4300
4301 static int ioc_hdrlist(void __user *arg, char *cmnd)
4302 {
4303 gdth_ioctl_rescan *rsc;
4304 gdth_cmd_str *cmd;
4305 gdth_ha_str *ha;
4306 unchar i;
4307 int rc = -ENOMEM;
4308 u32 cluster_type = 0;
4309
4310 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4311 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4312 if (!rsc || !cmd)
4313 goto free_fail;
4314
4315 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
4316 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
4317 rc = -EFAULT;
4318 goto free_fail;
4319 }
4320 memset(cmd, 0, sizeof(gdth_cmd_str));
4321
4322 for (i = 0; i < MAX_HDRIVES; ++i) {
4323 if (!ha->hdr[i].present) {
4324 rsc->hdr_list[i].bus = 0xff;
4325 continue;
4326 }
4327 rsc->hdr_list[i].bus = ha->virt_bus;
4328 rsc->hdr_list[i].target = i;
4329 rsc->hdr_list[i].lun = 0;
4330 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4331 if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
4332 cmd->Service = CACHESERVICE;
4333 cmd->OpCode = GDT_CLUST_INFO;
4334 if (ha->cache_feat & GDT_64BIT)
4335 cmd->u.cache64.DeviceNo = i;
4336 else
4337 cmd->u.cache.DeviceNo = i;
4338 if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
4339 rsc->hdr_list[i].cluster_type = cluster_type;
4340 }
4341 }
4342
4343 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4344 rc = -EFAULT;
4345 else
4346 rc = 0;
4347
4348 free_fail:
4349 kfree(rsc);
4350 kfree(cmd);
4351 return rc;
4352 }
4353
4354 static int ioc_rescan(void __user *arg, char *cmnd)
4355 {
4356 gdth_ioctl_rescan *rsc;
4357 gdth_cmd_str *cmd;
4358 ushort i, status, hdr_cnt;
4359 ulong32 info;
4360 int cyls, hds, secs;
4361 int rc = -ENOMEM;
4362 ulong flags;
4363 gdth_ha_str *ha;
4364
4365 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4366 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4367 if (!cmd || !rsc)
4368 goto free_fail;
4369
4370 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
4371 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
4372 rc = -EFAULT;
4373 goto free_fail;
4374 }
4375 memset(cmd, 0, sizeof(gdth_cmd_str));
4376
4377 if (rsc->flag == 0) {
4378 /* old method: re-init. cache service */
4379 cmd->Service = CACHESERVICE;
4380 if (ha->cache_feat & GDT_64BIT) {
4381 cmd->OpCode = GDT_X_INIT_HOST;
4382 cmd->u.cache64.DeviceNo = LINUX_OS;
4383 } else {
4384 cmd->OpCode = GDT_INIT;
4385 cmd->u.cache.DeviceNo = LINUX_OS;
4386 }
4387
4388 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4389 i = 0;
4390 hdr_cnt = (status == S_OK ? (ushort)info : 0);
4391 } else {
4392 i = rsc->hdr_no;
4393 hdr_cnt = i + 1;
4394 }
4395
4396 for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
4397 cmd->Service = CACHESERVICE;
4398 cmd->OpCode = GDT_INFO;
4399 if (ha->cache_feat & GDT_64BIT)
4400 cmd->u.cache64.DeviceNo = i;
4401 else
4402 cmd->u.cache.DeviceNo = i;
4403
4404 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4405
4406 spin_lock_irqsave(&ha->smp_lock, flags);
4407 rsc->hdr_list[i].bus = ha->virt_bus;
4408 rsc->hdr_list[i].target = i;
4409 rsc->hdr_list[i].lun = 0;
4410 if (status != S_OK) {
4411 ha->hdr[i].present = FALSE;
4412 } else {
4413 ha->hdr[i].present = TRUE;
4414 ha->hdr[i].size = info;
4415 /* evaluate mapping */
4416 ha->hdr[i].size &= ~SECS32;
4417 gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
4418 ha->hdr[i].heads = hds;
4419 ha->hdr[i].secs = secs;
4420 /* round size */
4421 ha->hdr[i].size = cyls * hds * secs;
4422 }
4423 spin_unlock_irqrestore(&ha->smp_lock, flags);
4424 if (status != S_OK)
4425 continue;
4426
4427 /* extended info, if GDT_64BIT, for drives > 2 TB */
4428 /* but we need ha->info2, not yet stored in scp->SCp */
4429
4430 /* devtype, cluster info, R/W attribs */
4431 cmd->Service = CACHESERVICE;
4432 cmd->OpCode = GDT_DEVTYPE;
4433 if (ha->cache_feat & GDT_64BIT)
4434 cmd->u.cache64.DeviceNo = i;
4435 else
4436 cmd->u.cache.DeviceNo = i;
4437
4438 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4439
4440 spin_lock_irqsave(&ha->smp_lock, flags);
4441 ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
4442 spin_unlock_irqrestore(&ha->smp_lock, flags);
4443
4444 cmd->Service = CACHESERVICE;
4445 cmd->OpCode = GDT_CLUST_INFO;
4446 if (ha->cache_feat & GDT_64BIT)
4447 cmd->u.cache64.DeviceNo = i;
4448 else
4449 cmd->u.cache.DeviceNo = i;
4450
4451 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4452
4453 spin_lock_irqsave(&ha->smp_lock, flags);
4454 ha->hdr[i].cluster_type =
4455 ((status == S_OK && !shared_access) ? (ushort)info : 0);
4456 spin_unlock_irqrestore(&ha->smp_lock, flags);
4457 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4458
4459 cmd->Service = CACHESERVICE;
4460 cmd->OpCode = GDT_RW_ATTRIBS;
4461 if (ha->cache_feat & GDT_64BIT)
4462 cmd->u.cache64.DeviceNo = i;
4463 else
4464 cmd->u.cache.DeviceNo = i;
4465
4466 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4467
4468 spin_lock_irqsave(&ha->smp_lock, flags);
4469 ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
4470 spin_unlock_irqrestore(&ha->smp_lock, flags);
4471 }
4472
4473 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4474 rc = -EFAULT;
4475 else
4476 rc = 0;
4477
4478 free_fail:
4479 kfree(rsc);
4480 kfree(cmd);
4481 return rc;
4482 }
4483
4484 static int gdth_ioctl(struct inode *inode, struct file *filep,
4485 unsigned int cmd, unsigned long arg)
4486 {
4487 gdth_ha_str *ha;
4488 Scsi_Cmnd *scp;
4489 ulong flags;
4490 char cmnd[MAX_COMMAND_SIZE];
4491 void __user *argp = (void __user *)arg;
4492
4493 memset(cmnd, 0xff, 12);
4494
4495 TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
4496
4497 switch (cmd) {
4498 case GDTIOCTL_CTRCNT:
4499 {
4500 int cnt = gdth_ctr_count;
4501 if (put_user(cnt, (int __user *)argp))
4502 return -EFAULT;
4503 break;
4504 }
4505
4506 case GDTIOCTL_DRVERS:
4507 {
4508 int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
4509 if (put_user(ver, (int __user *)argp))
4510 return -EFAULT;
4511 break;
4512 }
4513
4514 case GDTIOCTL_OSVERS:
4515 {
4516 gdth_ioctl_osvers osv;
4517
4518 osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
4519 osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
4520 osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
4521 if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
4522 return -EFAULT;
4523 break;
4524 }
4525
4526 case GDTIOCTL_CTRTYPE:
4527 {
4528 gdth_ioctl_ctrtype ctrt;
4529
4530 if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
4531 (NULL == (ha = gdth_find_ha(ctrt.ionode))))
4532 return -EFAULT;
4533
4534 if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
4535 ctrt.type = (unchar)((ha->stype>>20) - 0x10);
4536 } else {
4537 if (ha->type != GDT_PCIMPR) {
4538 ctrt.type = (unchar)((ha->stype<<4) + 6);
4539 } else {
4540 ctrt.type =
4541 (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
4542 if (ha->stype >= 0x300)
4543 ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
4544 else
4545 ctrt.ext_type = 0x6000 | ha->stype;
4546 }
4547 ctrt.device_id = ha->pdev->device;
4548 ctrt.sub_device_id = ha->pdev->subsystem_device;
4549 }
4550 ctrt.info = ha->brd_phys;
4551 ctrt.oem_id = ha->oem_id;
4552 if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
4553 return -EFAULT;
4554 break;
4555 }
4556
4557 case GDTIOCTL_GENERAL:
4558 return ioc_general(argp, cmnd);
4559
4560 case GDTIOCTL_EVENT:
4561 return ioc_event(argp);
4562
4563 case GDTIOCTL_LOCKDRV:
4564 return ioc_lockdrv(argp);
4565
4566 case GDTIOCTL_LOCKCHN:
4567 {
4568 gdth_ioctl_lockchn lchn;
4569 unchar i, j;
4570
4571 if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
4572 (NULL == (ha = gdth_find_ha(lchn.ionode))))
4573 return -EFAULT;
4574
4575 i = lchn.channel;
4576 if (i < ha->bus_cnt) {
4577 if (lchn.lock) {
4578 spin_lock_irqsave(&ha->smp_lock, flags);
4579 ha->raw[i].lock = 1;
4580 spin_unlock_irqrestore(&ha->smp_lock, flags);
4581 for (j = 0; j < ha->tid_cnt; ++j) {
4582 gdth_wait_completion(ha, i, j);
4583 gdth_stop_timeout(ha, i, j);
4584 }
4585 } else {
4586 spin_lock_irqsave(&ha->smp_lock, flags);
4587 ha->raw[i].lock = 0;
4588 spin_unlock_irqrestore(&ha->smp_lock, flags);
4589 for (j = 0; j < ha->tid_cnt; ++j) {
4590 gdth_start_timeout(ha, i, j);
4591 gdth_next(ha);
4592 }
4593 }
4594 }
4595 break;
4596 }
4597
4598 case GDTIOCTL_RESCAN:
4599 return ioc_rescan(argp, cmnd);
4600
4601 case GDTIOCTL_HDRLIST:
4602 return ioc_hdrlist(argp, cmnd);
4603
4604 case GDTIOCTL_RESET_BUS:
4605 {
4606 gdth_ioctl_reset res;
4607 int rval;
4608
4609 if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
4610 (NULL == (ha = gdth_find_ha(res.ionode))))
4611 return -EFAULT;
4612
4613 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
4614 if (!scp)
4615 return -ENOMEM;
4616 scp->device = ha->sdev;
4617 scp->cmd_len = 12;
4618 scp->device->channel = res.number;
4619 rval = gdth_eh_bus_reset(scp);
4620 res.status = (rval == SUCCESS ? S_OK : S_GENERR);
4621 kfree(scp);
4622
4623 if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
4624 return -EFAULT;
4625 break;
4626 }
4627
4628 case GDTIOCTL_RESET_DRV:
4629 return ioc_resetdrv(argp, cmnd);
4630
4631 default:
4632 break;
4633 }
4634 return 0;
4635 }
4636
4637
4638 /* flush routine */
4639 static void gdth_flush(gdth_ha_str *ha)
4640 {
4641 int i;
4642 gdth_cmd_str gdtcmd;
4643 char cmnd[MAX_COMMAND_SIZE];
4644 memset(cmnd, 0xff, MAX_COMMAND_SIZE);
4645
4646 TRACE2(("gdth_flush() hanum %d\n", ha->hanum));
4647
4648 for (i = 0; i < MAX_HDRIVES; ++i) {
4649 if (ha->hdr[i].present) {
4650 gdtcmd.BoardNode = LOCALBOARD;
4651 gdtcmd.Service = CACHESERVICE;
4652 gdtcmd.OpCode = GDT_FLUSH;
4653 if (ha->cache_feat & GDT_64BIT) {
4654 gdtcmd.u.cache64.DeviceNo = i;
4655 gdtcmd.u.cache64.BlockNo = 1;
4656 gdtcmd.u.cache64.sg_canz = 0;
4657 } else {
4658 gdtcmd.u.cache.DeviceNo = i;
4659 gdtcmd.u.cache.BlockNo = 1;
4660 gdtcmd.u.cache.sg_canz = 0;
4661 }
4662 TRACE2(("gdth_flush(): flush ha %d drive %d\n", ha->hanum, i));
4663
4664 gdth_execute(ha->shost, &gdtcmd, cmnd, 30, NULL);
4665 }
4666 }
4667 }
4668
4669 /* shutdown routine */
4670 static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
4671 {
4672 gdth_ha_str *ha;
4673 #ifndef __alpha__
4674 gdth_cmd_str gdtcmd;
4675 char cmnd[MAX_COMMAND_SIZE];
4676 #endif
4677
4678 if (notifier_disabled)
4679 return NOTIFY_OK;
4680
4681 TRACE2(("gdth_halt() event %d\n",(int)event));
4682 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
4683 return NOTIFY_DONE;
4684
4685 notifier_disabled = 1;
4686 printk("GDT-HA: Flushing all host drives .. ");
4687 list_for_each_entry(ha, &gdth_instances, list) {
4688 gdth_flush(ha);
4689
4690 #ifndef __alpha__
4691 /* controller reset */
4692 memset(cmnd, 0xff, MAX_COMMAND_SIZE);
4693 gdtcmd.BoardNode = LOCALBOARD;
4694 gdtcmd.Service = CACHESERVICE;
4695 gdtcmd.OpCode = GDT_RESET;
4696 TRACE2(("gdth_halt(): reset controller %d\n", ha->hanum));
4697 gdth_execute(ha->shost, &gdtcmd, cmnd, 10, NULL);
4698 #endif
4699 }
4700 printk("Done.\n");
4701
4702 #ifdef GDTH_STATISTICS
4703 del_timer(&gdth_timer);
4704 #endif
4705 return NOTIFY_OK;
4706 }
4707
4708 /* configure lun */
4709 static int gdth_slave_configure(struct scsi_device *sdev)
4710 {
4711 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4712 sdev->skip_ms_page_3f = 1;
4713 sdev->skip_ms_page_8 = 1;
4714 return 0;
4715 }
4716
4717 static struct scsi_host_template gdth_template = {
4718 .name = "GDT SCSI Disk Array Controller",
4719 .info = gdth_info,
4720 .queuecommand = gdth_queuecommand,
4721 .eh_bus_reset_handler = gdth_eh_bus_reset,
4722 .slave_configure = gdth_slave_configure,
4723 .bios_param = gdth_bios_param,
4724 .proc_info = gdth_proc_info,
4725 .proc_name = "gdth",
4726 .can_queue = GDTH_MAXCMDS,
4727 .this_id = -1,
4728 .sg_tablesize = GDTH_MAXSG,
4729 .cmd_per_lun = GDTH_MAXC_P_L,
4730 .unchecked_isa_dma = 1,
4731 .use_clustering = ENABLE_CLUSTERING,
4732 };
4733
4734 #ifdef CONFIG_ISA
4735 static int __init gdth_isa_probe_one(ulong32 isa_bios)
4736 {
4737 struct Scsi_Host *shp;
4738 gdth_ha_str *ha;
4739 dma_addr_t scratch_dma_handle = 0;
4740 int error, i;
4741
4742 if (!gdth_search_isa(isa_bios))
4743 return -ENXIO;
4744
4745 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
4746 if (!shp)
4747 return -ENOMEM;
4748 ha = shost_priv(shp);
4749
4750 error = -ENODEV;
4751 if (!gdth_init_isa(isa_bios,ha))
4752 goto out_host_put;
4753
4754 /* controller found and initialized */
4755 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4756 isa_bios, ha->irq, ha->drq);
4757
4758 error = request_irq(ha->irq, gdth_interrupt, IRQF_DISABLED, "gdth", ha);
4759 if (error) {
4760 printk("GDT-ISA: Unable to allocate IRQ\n");
4761 goto out_host_put;
4762 }
4763
4764 error = request_dma(ha->drq, "gdth");
4765 if (error) {
4766 printk("GDT-ISA: Unable to allocate DMA channel\n");
4767 goto out_free_irq;
4768 }
4769
4770 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4771 enable_dma(ha->drq);
4772 shp->unchecked_isa_dma = 1;
4773 shp->irq = ha->irq;
4774 shp->dma_channel = ha->drq;
4775
4776 ha->hanum = gdth_ctr_count++;
4777 ha->shost = shp;
4778
4779 ha->pccb = &ha->cmdext;
4780 ha->ccb_phys = 0L;
4781 ha->pdev = NULL;
4782
4783 error = -ENOMEM;
4784
4785 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4786 &scratch_dma_handle);
4787 if (!ha->pscratch)
4788 goto out_dec_counters;
4789 ha->scratch_phys = scratch_dma_handle;
4790
4791 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4792 &scratch_dma_handle);
4793 if (!ha->pmsg)
4794 goto out_free_pscratch;
4795 ha->msg_phys = scratch_dma_handle;
4796
4797 #ifdef INT_COAL
4798 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4799 sizeof(gdth_coal_status) * MAXOFFSETS,
4800 &scratch_dma_handle);
4801 if (!ha->coal_stat)
4802 goto out_free_pmsg;
4803 ha->coal_stat_phys = scratch_dma_handle;
4804 #endif
4805
4806 ha->scratch_busy = FALSE;
4807 ha->req_first = NULL;
4808 ha->tid_cnt = MAX_HDRIVES;
4809 if (max_ids > 0 && max_ids < ha->tid_cnt)
4810 ha->tid_cnt = max_ids;
4811 for (i = 0; i < GDTH_MAXCMDS; ++i)
4812 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4813 ha->scan_mode = rescan ? 0x10 : 0;
4814
4815 error = -ENODEV;
4816 if (!gdth_search_drives(ha)) {
4817 printk("GDT-ISA: Error during device scan\n");
4818 goto out_free_coal_stat;
4819 }
4820
4821 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4822 hdr_channel = ha->bus_cnt;
4823 ha->virt_bus = hdr_channel;
4824
4825 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4826 shp->max_cmd_len = 16;
4827
4828 shp->max_id = ha->tid_cnt;
4829 shp->max_lun = MAXLUN;
4830 shp->max_channel = ha->bus_cnt;
4831
4832 spin_lock_init(&ha->smp_lock);
4833 gdth_enable_int(ha);
4834
4835 error = scsi_add_host(shp, NULL);
4836 if (error)
4837 goto out_free_coal_stat;
4838 list_add_tail(&ha->list, &gdth_instances);
4839 return 0;
4840
4841 out_free_coal_stat:
4842 #ifdef INT_COAL
4843 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4844 ha->coal_stat, ha->coal_stat_phys);
4845 out_free_pmsg:
4846 #endif
4847 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4848 ha->pmsg, ha->msg_phys);
4849 out_free_pscratch:
4850 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4851 ha->pscratch, ha->scratch_phys);
4852 out_dec_counters:
4853 gdth_ctr_count--;
4854 out_free_irq:
4855 free_irq(ha->irq, ha);
4856 out_host_put:
4857 scsi_host_put(shp);
4858 return error;
4859 }
4860 #endif /* CONFIG_ISA */
4861
4862 #ifdef CONFIG_EISA
4863 static int __init gdth_eisa_probe_one(ushort eisa_slot)
4864 {
4865 struct Scsi_Host *shp;
4866 gdth_ha_str *ha;
4867 dma_addr_t scratch_dma_handle = 0;
4868 int error, i;
4869
4870 if (!gdth_search_eisa(eisa_slot))
4871 return -ENXIO;
4872
4873 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
4874 if (!shp)
4875 return -ENOMEM;
4876 ha = shost_priv(shp);
4877
4878 error = -ENODEV;
4879 if (!gdth_init_eisa(eisa_slot,ha))
4880 goto out_host_put;
4881
4882 /* controller found and initialized */
4883 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4884 eisa_slot >> 12, ha->irq);
4885
4886 error = request_irq(ha->irq, gdth_interrupt, IRQF_DISABLED, "gdth", ha);
4887 if (error) {
4888 printk("GDT-EISA: Unable to allocate IRQ\n");
4889 goto out_host_put;
4890 }
4891
4892 shp->unchecked_isa_dma = 0;
4893 shp->irq = ha->irq;
4894 shp->dma_channel = 0xff;
4895
4896 ha->hanum = gdth_ctr_count++;
4897 ha->shost = shp;
4898
4899 TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum));
4900
4901 ha->pccb = &ha->cmdext;
4902 ha->ccb_phys = 0L;
4903
4904 error = -ENOMEM;
4905
4906 ha->pdev = NULL;
4907 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4908 &scratch_dma_handle);
4909 if (!ha->pscratch)
4910 goto out_free_irq;
4911 ha->scratch_phys = scratch_dma_handle;
4912
4913 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4914 &scratch_dma_handle);
4915 if (!ha->pmsg)
4916 goto out_free_pscratch;
4917 ha->msg_phys = scratch_dma_handle;
4918
4919 #ifdef INT_COAL
4920 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4921 sizeof(gdth_coal_status) * MAXOFFSETS,
4922 &scratch_dma_handle);
4923 if (!ha->coal_stat)
4924 goto out_free_pmsg;
4925 ha->coal_stat_phys = scratch_dma_handle;
4926 #endif
4927
4928 ha->ccb_phys = pci_map_single(ha->pdev,ha->pccb,
4929 sizeof(gdth_cmd_str), PCI_DMA_BIDIRECTIONAL);
4930 if (!ha->ccb_phys)
4931 goto out_free_coal_stat;
4932
4933 ha->scratch_busy = FALSE;
4934 ha->req_first = NULL;
4935 ha->tid_cnt = MAX_HDRIVES;
4936 if (max_ids > 0 && max_ids < ha->tid_cnt)
4937 ha->tid_cnt = max_ids;
4938 for (i = 0; i < GDTH_MAXCMDS; ++i)
4939 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4940 ha->scan_mode = rescan ? 0x10 : 0;
4941
4942 if (!gdth_search_drives(ha)) {
4943 printk("GDT-EISA: Error during device scan\n");
4944 error = -ENODEV;
4945 goto out_free_ccb_phys;
4946 }
4947
4948 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4949 hdr_channel = ha->bus_cnt;
4950 ha->virt_bus = hdr_channel;
4951
4952 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4953 shp->max_cmd_len = 16;
4954
4955 shp->max_id = ha->tid_cnt;
4956 shp->max_lun = MAXLUN;
4957 shp->max_channel = ha->bus_cnt;
4958
4959 spin_lock_init(&ha->smp_lock);
4960 gdth_enable_int(ha);
4961
4962 error = scsi_add_host(shp, NULL);
4963 if (error)
4964 goto out_free_coal_stat;
4965 list_add_tail(&ha->list, &gdth_instances);
4966 return 0;
4967
4968 out_free_ccb_phys:
4969 pci_unmap_single(ha->pdev,ha->ccb_phys, sizeof(gdth_cmd_str),
4970 PCI_DMA_BIDIRECTIONAL);
4971 out_free_coal_stat:
4972 #ifdef INT_COAL
4973 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4974 ha->coal_stat, ha->coal_stat_phys);
4975 out_free_pmsg:
4976 #endif
4977 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4978 ha->pmsg, ha->msg_phys);
4979 out_free_pscratch:
4980 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4981 ha->pscratch, ha->scratch_phys);
4982 out_free_irq:
4983 free_irq(ha->irq, ha);
4984 gdth_ctr_count--;
4985 out_host_put:
4986 scsi_host_put(shp);
4987 return error;
4988 }
4989 #endif /* CONFIG_EISA */
4990
4991 #ifdef CONFIG_PCI
4992 static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr)
4993 {
4994 struct Scsi_Host *shp;
4995 gdth_ha_str *ha;
4996 dma_addr_t scratch_dma_handle = 0;
4997 int error, i;
4998
4999 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
5000 if (!shp)
5001 return -ENOMEM;
5002 ha = shost_priv(shp);
5003
5004 error = -ENODEV;
5005 if (!gdth_init_pci(&pcistr[ctr],ha))
5006 goto out_host_put;
5007
5008 /* controller found and initialized */
5009 printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
5010 pcistr[ctr].pdev->bus->number,
5011 PCI_SLOT(pcistr[ctr].pdev->devfn),
5012 ha->irq);
5013
5014 error = request_irq(ha->irq, gdth_interrupt,
5015 IRQF_DISABLED|IRQF_SHARED, "gdth", ha);
5016 if (error) {
5017 printk("GDT-PCI: Unable to allocate IRQ\n");
5018 goto out_host_put;
5019 }
5020
5021 shp->unchecked_isa_dma = 0;
5022 shp->irq = ha->irq;
5023 shp->dma_channel = 0xff;
5024
5025 ha->hanum = gdth_ctr_count++;
5026 ha->shost = shp;
5027
5028 ha->pccb = &ha->cmdext;
5029 ha->ccb_phys = 0L;
5030
5031 error = -ENOMEM;
5032
5033 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
5034 &scratch_dma_handle);
5035 if (!ha->pscratch)
5036 goto out_free_irq;
5037 ha->scratch_phys = scratch_dma_handle;
5038
5039 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
5040 &scratch_dma_handle);
5041 if (!ha->pmsg)
5042 goto out_free_pscratch;
5043 ha->msg_phys = scratch_dma_handle;
5044
5045 #ifdef INT_COAL
5046 ha->coal_stat = pci_alloc_consistent(ha->pdev,
5047 sizeof(gdth_coal_status) * MAXOFFSETS,
5048 &scratch_dma_handle);
5049 if (!ha->coal_stat)
5050 goto out_free_pmsg;
5051 ha->coal_stat_phys = scratch_dma_handle;
5052 #endif
5053
5054 ha->scratch_busy = FALSE;
5055 ha->req_first = NULL;
5056 ha->tid_cnt = pcistr[ctr].pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
5057 if (max_ids > 0 && max_ids < ha->tid_cnt)
5058 ha->tid_cnt = max_ids;
5059 for (i = 0; i < GDTH_MAXCMDS; ++i)
5060 ha->cmd_tab[i].cmnd = UNUSED_CMND;
5061 ha->scan_mode = rescan ? 0x10 : 0;
5062
5063 error = -ENODEV;
5064 if (!gdth_search_drives(ha)) {
5065 printk("GDT-PCI %d: Error during device scan\n", ha->hanum);
5066 goto out_free_coal_stat;
5067 }
5068
5069 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
5070 hdr_channel = ha->bus_cnt;
5071 ha->virt_bus = hdr_channel;
5072
5073 /* 64-bit DMA only supported from FW >= x.43 */
5074 if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
5075 !ha->dma64_support) {
5076 if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
5077 printk(KERN_WARNING "GDT-PCI %d: "
5078 "Unable to set 32-bit DMA\n", ha->hanum);
5079 goto out_free_coal_stat;
5080 }
5081 } else {
5082 shp->max_cmd_len = 16;
5083 if (!pci_set_dma_mask(pcistr[ctr].pdev, DMA_64BIT_MASK)) {
5084 printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
5085 } else if (pci_set_dma_mask(pcistr[ctr].pdev, DMA_32BIT_MASK)) {
5086 printk(KERN_WARNING "GDT-PCI %d: "
5087 "Unable to set 64/32-bit DMA\n", ha->hanum);
5088 goto out_free_coal_stat;
5089 }
5090 }
5091
5092 shp->max_id = ha->tid_cnt;
5093 shp->max_lun = MAXLUN;
5094 shp->max_channel = ha->bus_cnt;
5095
5096 spin_lock_init(&ha->smp_lock);
5097 gdth_enable_int(ha);
5098
5099 error = scsi_add_host(shp, &pcistr[ctr].pdev->dev);
5100 if (error)
5101 goto out_free_coal_stat;
5102 list_add_tail(&ha->list, &gdth_instances);
5103 return 0;
5104
5105 out_free_coal_stat:
5106 #ifdef INT_COAL
5107 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
5108 ha->coal_stat, ha->coal_stat_phys);
5109 out_free_pmsg:
5110 #endif
5111 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5112 ha->pmsg, ha->msg_phys);
5113 out_free_pscratch:
5114 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5115 ha->pscratch, ha->scratch_phys);
5116 out_free_irq:
5117 free_irq(ha->irq, ha);
5118 gdth_ctr_count--;
5119 out_host_put:
5120 scsi_host_put(shp);
5121 return error;
5122 }
5123 #endif /* CONFIG_PCI */
5124
5125 static void gdth_remove_one(gdth_ha_str *ha)
5126 {
5127 struct Scsi_Host *shp = ha->shost;
5128
5129 TRACE2(("gdth_remove_one()\n"));
5130
5131 scsi_remove_host(shp);
5132
5133 if (ha->sdev) {
5134 scsi_free_host_dev(ha->sdev);
5135 ha->sdev = NULL;
5136 }
5137
5138 gdth_flush(ha);
5139
5140 if (shp->irq)
5141 free_irq(shp->irq,ha);
5142
5143 #ifdef CONFIG_ISA
5144 if (shp->dma_channel != 0xff)
5145 free_dma(shp->dma_channel);
5146 #endif
5147 #ifdef INT_COAL
5148 if (ha->coal_stat)
5149 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
5150 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
5151 #endif
5152 if (ha->pscratch)
5153 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5154 ha->pscratch, ha->scratch_phys);
5155 if (ha->pmsg)
5156 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5157 ha->pmsg, ha->msg_phys);
5158 if (ha->ccb_phys)
5159 pci_unmap_single(ha->pdev,ha->ccb_phys,
5160 sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
5161
5162 scsi_host_put(shp);
5163 }
5164
5165 static int __init gdth_init(void)
5166 {
5167 if (disable) {
5168 printk("GDT-HA: Controller driver disabled from"
5169 " command line !\n");
5170 return 0;
5171 }
5172
5173 printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",
5174 GDTH_VERSION_STR);
5175
5176 /* initializations */
5177 gdth_polling = TRUE;
5178 gdth_clear_events();
5179
5180 /* As default we do not probe for EISA or ISA controllers */
5181 if (probe_eisa_isa) {
5182 /* scanning for controllers, at first: ISA controller */
5183 #ifdef CONFIG_ISA
5184 ulong32 isa_bios;
5185 for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
5186 isa_bios += 0x8000UL)
5187 gdth_isa_probe_one(isa_bios);
5188 #endif
5189 #ifdef CONFIG_EISA
5190 {
5191 ushort eisa_slot;
5192 for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
5193 eisa_slot += 0x1000)
5194 gdth_eisa_probe_one(eisa_slot);
5195 }
5196 #endif
5197 }
5198
5199 #ifdef CONFIG_PCI
5200 /* scanning for PCI controllers */
5201 {
5202 gdth_pci_str pcistr[MAXHA];
5203 int cnt,ctr;
5204
5205 cnt = gdth_search_pci(pcistr);
5206 printk("GDT-HA: Found %d PCI Storage RAID Controllers\n", cnt);
5207 gdth_sort_pci(pcistr,cnt);
5208 for (ctr = 0; ctr < cnt; ++ctr)
5209 gdth_pci_probe_one(pcistr, ctr);
5210 }
5211 #endif /* CONFIG_PCI */
5212
5213 TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
5214
5215 if (list_empty(&gdth_instances))
5216 return -ENODEV;
5217
5218 #ifdef GDTH_STATISTICS
5219 TRACE2(("gdth_detect(): Initializing timer !\n"));
5220 init_timer(&gdth_timer);
5221 gdth_timer.expires = jiffies + HZ;
5222 gdth_timer.data = 0L;
5223 gdth_timer.function = gdth_timeout;
5224 add_timer(&gdth_timer);
5225 #endif
5226 major = register_chrdev(0,"gdth", &gdth_fops);
5227 notifier_disabled = 0;
5228 register_reboot_notifier(&gdth_notifier);
5229 gdth_polling = FALSE;
5230 return 0;
5231 }
5232
5233 static void __exit gdth_exit(void)
5234 {
5235 gdth_ha_str *ha;
5236
5237 list_for_each_entry(ha, &gdth_instances, list)
5238 gdth_remove_one(ha);
5239
5240 #ifdef GDTH_STATISTICS
5241 del_timer(&gdth_timer);
5242 #endif
5243 unregister_chrdev(major,"gdth");
5244 unregister_reboot_notifier(&gdth_notifier);
5245 }
5246
5247 module_init(gdth_init);
5248 module_exit(gdth_exit);
5249
5250 #ifndef MODULE
5251 __setup("gdth=", option_setup);
5252 #endif
Linux kernel - Deliverables
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