]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/scsi/gdth.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
st: cdev lock_kernel() pushdown
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / gdth.c
CommitLineData
1da177e4
LT		 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 *
cbd5f69b 7 * Copyright (C) 1995-06 ICP vortex GmbH, Achim Leubner *
1da177e4 8 * Copyright (C) 2002-04 Intel Corporation *
cbd5f69b 9 * Copyright (C) 2003-06 Adaptec Inc. *
1da177e4
LT		 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 * *
8d7a5da4 30 * Linux kernel 2.6.x supported *
1da177e4 31 * *
1da177e4
LT		 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
1da177e4
LT		 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,
575c9687 62 * appropriate controller firmware required
1da177e4
LT		 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,
52759e6a 70 * max_ids:127,rescan:N,hdr_channel:0,
1da177e4
LT		 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
52759e6a 81 * max_ids=127 rescan=0 hdr_channel=0 shared_access=0
1da177e4
LT		 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
d35055a0
BH		 88 * this_residual: unused
89 * buffer: unused
3892d88a 90 * dma_handle: unused
d35055a0 91 * buffers_residual: unused
3892d88a 92 * Status: unused
f842b64e
BH		 93 * Message: unused
94 * have_data_in: unused
95 * sent_command: unused
96 * phase: unused
1da177e4
LT		 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>
1da177e4
LT		 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>
910638ae 121#include <linux/dma-mapping.h>
835cc24a 122#include <linux/list.h>
cbd5f69b 123
1da177e4
LT		 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>
1da177e4 134#include <linux/blkdev.h>
3892d88a 135#include <linux/scatterlist.h>
1da177e4
LT		 136
137#include "scsi.h"
138#include <scsi/scsi_host.h>
cbd5f69b 139#include "gdth.h"
1da177e4
LT		 140
141static void gdth_delay(int milliseconds);
142static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
7d12e780 143static irqreturn_t gdth_interrupt(int irq, void *dev_id);
230e886e 144static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
10e1b4bc 145 int gdth_from_wait, int* pIndex);
45f1a41b
BH		 146static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
147 Scsi_Cmnd *scp);
148static int gdth_async_event(gdth_ha_str *ha);
1da177e4
LT		 149static void gdth_log_event(gdth_evt_data *dvr, char *buffer);
150
45f1a41b
BH		 151static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority);
152static void gdth_next(gdth_ha_str *ha);
153static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b);
154static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
1da177e4
LT		 155static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
156 ushort idx, gdth_evt_data *evt);
157static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr);
158static void gdth_readapp_event(gdth_ha_str *ha, unchar application,
159 gdth_evt_str *estr);
160static void gdth_clear_events(void);
161
45f1a41b 162static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
ee54cc6a 163 char *buffer, ushort count);
45f1a41b
BH		 164static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
165static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive);
1da177e4 166
45f1a41b 167static void gdth_enable_int(gdth_ha_str *ha);
45f1a41b
BH		 168static int gdth_test_busy(gdth_ha_str *ha);
169static int gdth_get_cmd_index(gdth_ha_str *ha);
170static void gdth_release_event(gdth_ha_str *ha);
171static int gdth_wait(gdth_ha_str *ha, int index,ulong32 time);
172static int gdth_internal_cmd(gdth_ha_str *ha, unchar service, ushort opcode,
173 ulong32 p1, ulong64 p2,ulong64 p3);
174static int gdth_search_drives(gdth_ha_str *ha);
175static int gdth_analyse_hdrive(gdth_ha_str *ha, ushort hdrive);
1da177e4 176
45f1a41b 177static const char *gdth_ctr_name(gdth_ha_str *ha);
1da177e4
LT		 178
179static int gdth_open(struct inode *inode, struct file *filep);
180static int gdth_close(struct inode *inode, struct file *filep);
181static int gdth_ioctl(struct inode *inode, struct file *filep,
182 unsigned int cmd, unsigned long arg);
183
45f1a41b 184static void gdth_flush(gdth_ha_str *ha);
cbd5f69b 185static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *));
3058d5de
BH		 186static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
187 struct gdth_cmndinfo *cmndinfo);
cbd5f69b 188static void gdth_scsi_done(struct scsi_cmnd *scp);
1da177e4
LT		 189
190#ifdef DEBUG_GDTH
191static unchar DebugState = DEBUG_GDTH;
192
193#ifdef __SERIAL__
194#define MAX_SERBUF 160
195static void ser_init(void);
196static void ser_puts(char *str);
197static void ser_putc(char c);
198static int ser_printk(const char *fmt, ...);
199static char strbuf[MAX_SERBUF+1];
200#ifdef __COM2__
201#define COM_BASE 0x2f8
202#else
203#define COM_BASE 0x3f8
204#endif
205static void ser_init()
206{
207 unsigned port=COM_BASE;
208
209 outb(0x80,port+3);
210 outb(0,port+1);
211 /* 19200 Baud, if 9600: outb(12,port) */
212 outb(6, port);
213 outb(3,port+3);
214 outb(0,port+1);
215 /*
216 ser_putc('I');
217 ser_putc(' ');
218 */
219}
220
221static void ser_puts(char *str)
222{
223 char *ptr;
224
225 ser_init();
226 for (ptr=str;*ptr;++ptr)
227 ser_putc(*ptr);
228}
229
230static void ser_putc(char c)
231{
232 unsigned port=COM_BASE;
233
234 while ((inb(port+5) & 0x20)==0);
235 outb(c,port);
236 if (c==0x0a)
237 {
238 while ((inb(port+5) & 0x20)==0);
239 outb(0x0d,port);
240 }
241}
242
243static int ser_printk(const char *fmt, ...)
244{
245 va_list args;
246 int i;
247
248 va_start(args,fmt);
249 i = vsprintf(strbuf,fmt,args);
250 ser_puts(strbuf);
251 va_end(args);
252 return i;
253}
254
255#define TRACE(a) {if (DebugState==1) {ser_printk a;}}
256#define TRACE2(a) {if (DebugState==1 || DebugState==2) {ser_printk a;}}
257#define TRACE3(a) {if (DebugState!=0) {ser_printk a;}}
258
259#else /* !__SERIAL__ */
260#define TRACE(a) {if (DebugState==1) {printk a;}}
261#define TRACE2(a) {if (DebugState==1 || DebugState==2) {printk a;}}
262#define TRACE3(a) {if (DebugState!=0) {printk a;}}
263#endif
264
265#else /* !DEBUG */
266#define TRACE(a)
267#define TRACE2(a)
268#define TRACE3(a)
269#endif
270
271#ifdef GDTH_STATISTICS
272static ulong32 max_rq=0, max_index=0, max_sg=0;
273#ifdef INT_COAL
274static ulong32 max_int_coal=0;
275#endif
276static ulong32 act_ints=0, act_ios=0, act_stats=0, act_rq=0;
277static struct timer_list gdth_timer;
278#endif
279
280#define PTR2USHORT(a) (ushort)(ulong)(a)
6391a113
TK		 281#define GDTOFFSOF(a,b) (size_t)&(((a*)0)->b)
282#define INDEX_OK(i,t) ((i)<ARRAY_SIZE(t))
1da177e4 283
1da177e4
LT		 284#define BUS_L2P(a,b) ((b)>(a)->virt_bus ? (b-1):(b))
285
aed91cb5 286#ifdef CONFIG_ISA
1da177e4 287static unchar gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */
aed91cb5 288#endif
c8e91b0a 289#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
1da177e4 290static unchar gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */
706a5d45 291#endif
1da177e4 292static unchar gdth_polling; /* polling if TRUE */
1da177e4 293static int gdth_ctr_count = 0; /* controller count */
884f7fba 294static LIST_HEAD(gdth_instances); /* controller list */
1da177e4
LT		 295static unchar gdth_write_through = FALSE; /* write through */
296static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */
297static int elastidx;
298static int eoldidx;
299static int major;
300
301#define DIN 1 /* IN data direction */
302#define DOU 2 /* OUT data direction */
303#define DNO DIN /* no data transfer */
304#define DUN DIN /* unknown data direction */
305static unchar gdth_direction_tab[0x100] = {
306 DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN,
307 DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN,
308 DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU,
309 DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU,
310 DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN,
311 DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN,
312 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,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,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
315 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,
316 DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU,
317 DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
318 DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
319 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,
320 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,
321 DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN
322};
323
324/* LILO and modprobe/insmod parameters */
325/* IRQ list for GDT3000/3020 EISA controllers */
326static int irq[MAXHA] __initdata =
327{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
328 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
329/* disable driver flag */
330static int disable __initdata = 0;
331/* reserve flag */
332static int reserve_mode = 1;
333/* reserve list */
334static int reserve_list[MAX_RES_ARGS] =
335{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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};
338/* scan order for PCI controllers */
339static int reverse_scan = 0;
340/* virtual channel for the host drives */
341static int hdr_channel = 0;
342/* max. IDs per channel */
343static int max_ids = MAXID;
344/* rescan all IDs */
345static int rescan = 0;
1da177e4
LT		 346/* shared access */
347static int shared_access = 1;
348/* enable support for EISA and ISA controllers */
349static int probe_eisa_isa = 0;
350/* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
351static int force_dma32 = 0;
352
353/* parameters for modprobe/insmod */
354module_param_array(irq, int, NULL, 0);
355module_param(disable, int, 0);
356module_param(reserve_mode, int, 0);
357module_param_array(reserve_list, int, NULL, 0);
358module_param(reverse_scan, int, 0);
359module_param(hdr_channel, int, 0);
360module_param(max_ids, int, 0);
361module_param(rescan, int, 0);
1da177e4
LT		 362module_param(shared_access, int, 0);
363module_param(probe_eisa_isa, int, 0);
364module_param(force_dma32, int, 0);
365MODULE_AUTHOR("Achim Leubner");
366MODULE_LICENSE("GPL");
367
368/* ioctl interface */
00977a59 369static const struct file_operations gdth_fops = {
1da177e4
LT		 370 .ioctl = gdth_ioctl,
371 .open = gdth_open,
372 .release = gdth_close,
373};
374
375#include "gdth_proc.h"
376#include "gdth_proc.c"
377
884f7fba
BH		 378static gdth_ha_str *gdth_find_ha(int hanum)
379{
380 gdth_ha_str *ha;
381
382 list_for_each_entry(ha, &gdth_instances, list)
383 if (hanum == ha->hanum)
384 return ha;
385
386 return NULL;
387}
388
3058d5de
BH		 389static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha)
390{
391 struct gdth_cmndinfo *priv = NULL;
392 ulong flags;
393 int i;
394
395 spin_lock_irqsave(&ha->smp_lock, flags);
396
397 for (i=0; i<GDTH_MAXCMDS; ++i) {
398 if (ha->cmndinfo[i].index == 0) {
399 priv = &ha->cmndinfo[i];
3058d5de 400 memset(priv, 0, sizeof(*priv));
ee54cc6a 401 priv->index = i+1;
3058d5de
BH		 402 break;
403 }
404 }
405
406 spin_unlock_irqrestore(&ha->smp_lock, flags);
407
408 return priv;
409}
410
411static void gdth_put_cmndinfo(struct gdth_cmndinfo *priv)
412{
413 BUG_ON(!priv);
414 priv->index = 0;
415}
416
1da177e4
LT		 417static void gdth_delay(int milliseconds)
418{
419 if (milliseconds == 0) {
420 udelay(1);
421 } else {
422 mdelay(milliseconds);
423 }
424}
425
cbd5f69b
LA		 426static void gdth_scsi_done(struct scsi_cmnd *scp)
427{
3058d5de
BH		 428 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
429 int internal_command = cmndinfo->internal_command;
430
b8bff2ae 431 TRACE2(("gdth_scsi_done()\n"));
cbd5f69b 432
3058d5de
BH		 433 gdth_put_cmndinfo(cmndinfo);
434 scp->host_scribble = NULL;
435
436 if (internal_command)
b8bff2ae
MW		 437 complete((struct completion *)scp->request);
438 else
439 scp->scsi_done(scp);
cbd5f69b
LA		 440}
441
442int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
443 int timeout, u32 *info)
444{
3058d5de 445 gdth_ha_str *ha = shost_priv(sdev->host);
cbd5f69b 446 Scsi_Cmnd *scp;
3058d5de 447 struct gdth_cmndinfo cmndinfo;
6e9a4738 448 DECLARE_COMPLETION_ONSTACK(wait);
cbd5f69b
LA		 449 int rval;
450
bbfbbbc1 451 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
cbd5f69b
LA		 452 if (!scp)
453 return -ENOMEM;
bbfbbbc1 454
1b96f895
SS		 455 scp->sense_buffer = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
456 if (!scp->sense_buffer) {
457 kfree(scp);
458 return -ENOMEM;
459 }
460
cbd5f69b 461 scp->device = sdev;
3058d5de
BH		 462 memset(&cmndinfo, 0, sizeof(cmndinfo));
463
beb40487
CH		 464 /* use request field to save the ptr. to completion struct. */
465 scp->request = (struct request *)&wait;
cbd5f69b 466 scp->timeout_per_command = timeout*HZ;
cbd5f69b 467 scp->cmd_len = 12;
64a87b24 468 scp->cmnd = cmnd;
f842b64e 469 cmndinfo.priority = IOCTL_PRI;
ee54cc6a 470 cmndinfo.internal_cmd_str = gdtcmd;
3058d5de
BH		 471 cmndinfo.internal_command = 1;
472
473 TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0]));
474 __gdth_queuecommand(ha, scp, &cmndinfo);
475
cbd5f69b
LA		 476 wait_for_completion(&wait);
477
f842b64e 478 rval = cmndinfo.status;
cbd5f69b 479 if (info)
f842b64e 480 *info = cmndinfo.info;
1b96f895 481 kfree(scp->sense_buffer);
cbd5f69b
LA		 482 kfree(scp);
483 return rval;
484}
cbd5f69b
LA		 485
486int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
487 int timeout, u32 *info)
488{
489 struct scsi_device *sdev = scsi_get_host_dev(shost);
490 int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
491
492 scsi_free_host_dev(sdev);
493 return rval;
494}
495
1da177e4
LT		 496static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
497{
498 *cyls = size /HEADS/SECS;
499 if (*cyls <= MAXCYLS) {
500 *heads = HEADS;
501 *secs = SECS;
502 } else { /* too high for 64*32 */
503 *cyls = size /MEDHEADS/MEDSECS;
504 if (*cyls <= MAXCYLS) {
505 *heads = MEDHEADS;
506 *secs = MEDSECS;
507 } else { /* too high for 127*63 */
508 *cyls = size /BIGHEADS/BIGSECS;
509 *heads = BIGHEADS;
510 *secs = BIGSECS;
511 }
512 }
513}
514
515/* controller search and initialization functions */
706a5d45 516#ifdef CONFIG_EISA
1da177e4
LT		 517static int __init gdth_search_eisa(ushort eisa_adr)
518{
519 ulong32 id;
520
521 TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
522 id = inl(eisa_adr+ID0REG);
523 if (id == GDT3A_ID || id == GDT3B_ID) { /* GDT3000A or GDT3000B */
524 if ((inb(eisa_adr+EISAREG) & 8) == 0)
525 return 0; /* not EISA configured */
526 return 1;
527 }
528 if (id == GDT3_ID) /* GDT3000 */
529 return 1;
530
531 return 0;
532}
706a5d45 533#endif /* CONFIG_EISA */
1da177e4 534
aed91cb5 535#ifdef CONFIG_ISA
1da177e4
LT		 536static int __init gdth_search_isa(ulong32 bios_adr)
537{
538 void __iomem *addr;
539 ulong32 id;
540
541 TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
542 if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(ulong32))) != NULL) {
a52667f3 543 id = readl(addr);
1da177e4
LT		 544 iounmap(addr);
545 if (id == GDT2_ID) /* GDT2000 */
546 return 1;
547 }
548 return 0;
549}
aed91cb5 550#endif /* CONFIG_ISA */
1da177e4 551
8514ef27 552#ifdef CONFIG_PCI
8514ef27 553
cff26806 554static bool gdth_search_vortex(ushort device)
1da177e4 555{
cff26806
JG		 556 if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
557 return true;
558 if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP &&
559 device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP)
560 return true;
561 if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX ||
562 device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2)
563 return true;
564 return false;
1da177e4
LT		 565}
566
cff26806
JG		 567static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out);
568static int gdth_pci_init_one(struct pci_dev *pdev,
569 const struct pci_device_id *ent);
570static void gdth_pci_remove_one(struct pci_dev *pdev);
571static void gdth_remove_one(gdth_ha_str *ha);
572
1da177e4
LT		 573/* Vortex only makes RAID controllers.
574 * We do not really want to specify all 550 ids here, so wildcard match.
575 */
cff26806
JG		 576static const struct pci_device_id gdthtable[] = {
577 { PCI_VDEVICE(VORTEX, PCI_ANY_ID) },
578 { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) },
579 { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) },
580 { } /* terminate list */
1da177e4 581};
cff26806 582MODULE_DEVICE_TABLE(pci, gdthtable);
1da177e4 583
cff26806
JG		 584static struct pci_driver gdth_pci_driver = {
585 .name = "gdth",
586 .id_table = gdthtable,
587 .probe = gdth_pci_init_one,
588 .remove = gdth_pci_remove_one,
589};
590
591static void gdth_pci_remove_one(struct pci_dev *pdev)
1da177e4 592{
cff26806
JG		 593 gdth_ha_str *ha = pci_get_drvdata(pdev);
594
595 pci_set_drvdata(pdev, NULL);
596
597 list_del(&ha->list);
598 gdth_remove_one(ha);
599
600 pci_disable_device(pdev);
601}
602
603static int gdth_pci_init_one(struct pci_dev *pdev,
604 const struct pci_device_id *ent)
605{
606 ushort vendor = pdev->vendor;
607 ushort device = pdev->device;
608 ulong base0, base1, base2;
609 int rc;
610 gdth_pci_str gdth_pcistr;
611 gdth_ha_str *ha = NULL;
1da177e4 612
cff26806
JG		 613 TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n",
614 gdth_ctr_count, vendor, device));
1da177e4 615
cff26806
JG		 616 memset(&gdth_pcistr, 0, sizeof(gdth_pcistr));
617
618 if (vendor == PCI_VENDOR_ID_VORTEX && !gdth_search_vortex(device))
619 return -ENODEV;
620
621 rc = pci_enable_device(pdev);
622 if (rc)
623 return rc;
624
625 if (gdth_ctr_count >= MAXHA)
626 return -EBUSY;
99109301 627
1da177e4 628 /* GDT PCI controller found, resources are already in pdev */
cff26806 629 gdth_pcistr.pdev = pdev;
1da177e4
LT		 630 base0 = pci_resource_flags(pdev, 0);
631 base1 = pci_resource_flags(pdev, 1);
632 base2 = pci_resource_flags(pdev, 2);
633 if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B || /* GDT6000/B */
634 device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) { /* MPR */
635 if (!(base0 & IORESOURCE_MEM))
cff26806
JG		 636 return -ENODEV;
637 gdth_pcistr.dpmem = pci_resource_start(pdev, 0);
1da177e4
LT		 638 } else { /* GDT6110, GDT6120, .. */
639 if (!(base0 & IORESOURCE_MEM) ||
640 !(base2 & IORESOURCE_MEM) ||
641 !(base1 & IORESOURCE_IO))
cff26806
JG		 642 return -ENODEV;
643 gdth_pcistr.dpmem = pci_resource_start(pdev, 2);
644 gdth_pcistr.io = pci_resource_start(pdev, 1);
1da177e4
LT		 645 }
646 TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n",
cff26806
JG		 647 gdth_pcistr.pdev->bus->number,
648 PCI_SLOT(gdth_pcistr.pdev->devfn),
649 gdth_pcistr.irq,
650 gdth_pcistr.dpmem));
1da177e4 651
cff26806
JG		 652 rc = gdth_pci_probe_one(&gdth_pcistr, &ha);
653 if (rc)
654 return rc;
1da177e4 655
cff26806 656 return 0;
1da177e4 657}
8514ef27 658#endif /* CONFIG_PCI */
1da177e4 659
706a5d45 660#ifdef CONFIG_EISA
1da177e4
LT		 661static int __init gdth_init_eisa(ushort eisa_adr,gdth_ha_str *ha)
662{
663 ulong32 retries,id;
664 unchar prot_ver,eisacf,i,irq_found;
665
666 TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
667
668 /* disable board interrupts, deinitialize services */
669 outb(0xff,eisa_adr+EDOORREG);
670 outb(0x00,eisa_adr+EDENABREG);
671 outb(0x00,eisa_adr+EINTENABREG);
672
673 outb(0xff,eisa_adr+LDOORREG);
674 retries = INIT_RETRIES;
675 gdth_delay(20);
676 while (inb(eisa_adr+EDOORREG) != 0xff) {
677 if (--retries == 0) {
678 printk("GDT-EISA: Initialization error (DEINIT failed)\n");
679 return 0;
680 }
681 gdth_delay(1);
682 TRACE2(("wait for DEINIT: retries=%d\n",retries));
683 }
684 prot_ver = inb(eisa_adr+MAILBOXREG);
685 outb(0xff,eisa_adr+EDOORREG);
686 if (prot_ver != PROTOCOL_VERSION) {
687 printk("GDT-EISA: Illegal protocol version\n");
688 return 0;
689 }
690 ha->bmic = eisa_adr;
691 ha->brd_phys = (ulong32)eisa_adr >> 12;
692
693 outl(0,eisa_adr+MAILBOXREG);
694 outl(0,eisa_adr+MAILBOXREG+4);
695 outl(0,eisa_adr+MAILBOXREG+8);
696 outl(0,eisa_adr+MAILBOXREG+12);
697
698 /* detect IRQ */
699 if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
700 ha->oem_id = OEM_ID_ICP;
701 ha->type = GDT_EISA;
702 ha->stype = id;
703 outl(1,eisa_adr+MAILBOXREG+8);
704 outb(0xfe,eisa_adr+LDOORREG);
705 retries = INIT_RETRIES;
706 gdth_delay(20);
707 while (inb(eisa_adr+EDOORREG) != 0xfe) {
708 if (--retries == 0) {
709 printk("GDT-EISA: Initialization error (get IRQ failed)\n");
710 return 0;
711 }
712 gdth_delay(1);
713 }
714 ha->irq = inb(eisa_adr+MAILBOXREG);
715 outb(0xff,eisa_adr+EDOORREG);
716 TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
717 /* check the result */
718 if (ha->irq == 0) {
719 TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
720 for (i = 0, irq_found = FALSE;
721 i < MAXHA && irq[i] != 0xff; ++i) {
722 if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
723 irq_found = TRUE;
724 break;
725 }
726 }
727 if (irq_found) {
728 ha->irq = irq[i];
729 irq[i] = 0;
730 printk("GDT-EISA: Can not detect controller IRQ,\n");
731 printk("Use IRQ setting from command line (IRQ = %d)\n",
732 ha->irq);
733 } else {
734 printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
735 printk("the controller BIOS or use command line parameters\n");
736 return 0;
737 }
738 }
739 } else {
740 eisacf = inb(eisa_adr+EISAREG) & 7;
741 if (eisacf > 4) /* level triggered */
742 eisacf -= 4;
743 ha->irq = gdth_irq_tab[eisacf];
744 ha->oem_id = OEM_ID_ICP;
745 ha->type = GDT_EISA;
746 ha->stype = id;
747 }
748
749 ha->dma64_support = 0;
750 return 1;
751}
706a5d45 752#endif /* CONFIG_EISA */
1da177e4 753
aed91cb5 754#ifdef CONFIG_ISA
1da177e4
LT		 755static int __init gdth_init_isa(ulong32 bios_adr,gdth_ha_str *ha)
756{
757 register gdt2_dpram_str __iomem *dp2_ptr;
758 int i;
759 unchar irq_drq,prot_ver;
760 ulong32 retries;
761
762 TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
763
764 ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
765 if (ha->brd == NULL) {
766 printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
767 return 0;
768 }
769 dp2_ptr = ha->brd;
a52667f3 770 writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
1da177e4
LT		 771 /* reset interface area */
772 memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
a52667f3 773 if (readl(&dp2_ptr->u) != 0) {
1da177e4
LT		 774 printk("GDT-ISA: Initialization error (DPMEM write error)\n");
775 iounmap(ha->brd);
776 return 0;
777 }
778
779 /* disable board interrupts, read DRQ and IRQ */
a52667f3
JG		 780 writeb(0xff, &dp2_ptr->io.irqdel);
781 writeb(0x00, &dp2_ptr->io.irqen);
782 writeb(0x00, &dp2_ptr->u.ic.S_Status);
783 writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
1da177e4 784
a52667f3 785 irq_drq = readb(&dp2_ptr->io.rq);
1da177e4
LT		 786 for (i=0; i<3; ++i) {
787 if ((irq_drq & 1)==0)
788 break;
789 irq_drq >>= 1;
790 }
791 ha->drq = gdth_drq_tab[i];
792
a52667f3 793 irq_drq = readb(&dp2_ptr->io.rq) >> 3;
1da177e4
LT		 794 for (i=1; i<5; ++i) {
795 if ((irq_drq & 1)==0)
796 break;
797 irq_drq >>= 1;
798 }
799 ha->irq = gdth_irq_tab[i];
800
801 /* deinitialize services */
a52667f3
JG		 802 writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
803 writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
804 writeb(0, &dp2_ptr->io.event);
1da177e4
LT		 805 retries = INIT_RETRIES;
806 gdth_delay(20);
a52667f3 807 while (readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
1da177e4
LT		 808 if (--retries == 0) {
809 printk("GDT-ISA: Initialization error (DEINIT failed)\n");
810 iounmap(ha->brd);
811 return 0;
812 }
813 gdth_delay(1);
814 }
a52667f3
JG		 815 prot_ver = (unchar)readl(&dp2_ptr->u.ic.S_Info[0]);
816 writeb(0, &dp2_ptr->u.ic.Status);
817 writeb(0xff, &dp2_ptr->io.irqdel);
1da177e4
LT		 818 if (prot_ver != PROTOCOL_VERSION) {
819 printk("GDT-ISA: Illegal protocol version\n");
820 iounmap(ha->brd);
821 return 0;
822 }
823
824 ha->oem_id = OEM_ID_ICP;
825 ha->type = GDT_ISA;
826 ha->ic_all_size = sizeof(dp2_ptr->u);
827 ha->stype= GDT2_ID;
828 ha->brd_phys = bios_adr >> 4;
829
830 /* special request to controller BIOS */
a52667f3
JG		 831 writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
832 writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
833 writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
834 writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
835 writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
836 writeb(0, &dp2_ptr->io.event);
1da177e4
LT		 837 retries = INIT_RETRIES;
838 gdth_delay(20);
a52667f3 839 while (readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
1da177e4
LT		 840 if (--retries == 0) {
841 printk("GDT-ISA: Initialization error\n");
842 iounmap(ha->brd);
843 return 0;
844 }
845 gdth_delay(1);
846 }
a52667f3
JG		 847 writeb(0, &dp2_ptr->u.ic.Status);
848 writeb(0xff, &dp2_ptr->io.irqdel);
1da177e4
LT		 849
850 ha->dma64_support = 0;
851 return 1;
852}
aed91cb5 853#endif /* CONFIG_ISA */
1da177e4 854
8514ef27 855#ifdef CONFIG_PCI
cff26806
JG		 856static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
857 gdth_ha_str *ha)
1da177e4
LT		 858{
859 register gdt6_dpram_str __iomem *dp6_ptr;
860 register gdt6c_dpram_str __iomem *dp6c_ptr;
861 register gdt6m_dpram_str __iomem *dp6m_ptr;
862 ulong32 retries;
863 unchar prot_ver;
864 ushort command;
865 int i, found = FALSE;
866
867 TRACE(("gdth_init_pci()\n"));
868
4c9c8d78 869 if (pdev->vendor == PCI_VENDOR_ID_INTEL)
1da177e4
LT		 870 ha->oem_id = OEM_ID_INTEL;
871 else
872 ha->oem_id = OEM_ID_ICP;
4c9c8d78
JG		 873 ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8);
874 ha->stype = (ulong32)pdev->device;
875 ha->irq = pdev->irq;
876 ha->pdev = pdev;
1da177e4 877
8e9a8a0d 878 if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) { /* GDT6000/B */
1da177e4
LT		 879 TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
880 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str));
881 if (ha->brd == NULL) {
882 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
883 return 0;
884 }
885 /* check and reset interface area */
886 dp6_ptr = ha->brd;
a52667f3
JG		 887 writel(DPMEM_MAGIC, &dp6_ptr->u);
888 if (readl(&dp6_ptr->u) != DPMEM_MAGIC) {
1da177e4
LT		 889 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
890 pcistr->dpmem);
891 found = FALSE;
892 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
893 iounmap(ha->brd);
894 ha->brd = ioremap(i, sizeof(ushort));
895 if (ha->brd == NULL) {
896 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
897 return 0;
898 }
a52667f3 899 if (readw(ha->brd) != 0xffff) {
1da177e4
LT		 900 TRACE2(("init_pci_old() address 0x%x busy\n", i));
901 continue;
902 }
903 iounmap(ha->brd);
4c9c8d78 904 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
1da177e4
LT		 905 ha->brd = ioremap(i, sizeof(gdt6_dpram_str));
906 if (ha->brd == NULL) {
907 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
908 return 0;
909 }
910 dp6_ptr = ha->brd;
a52667f3
JG		 911 writel(DPMEM_MAGIC, &dp6_ptr->u);
912 if (readl(&dp6_ptr->u) == DPMEM_MAGIC) {
1da177e4
LT		 913 printk("GDT-PCI: Use free address at 0x%x\n", i);
914 found = TRUE;
915 break;
916 }
917 }
918 if (!found) {
919 printk("GDT-PCI: No free address found!\n");
920 iounmap(ha->brd);
921 return 0;
922 }
923 }
924 memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u));
a52667f3 925 if (readl(&dp6_ptr->u) != 0) {
1da177e4
LT		 926 printk("GDT-PCI: Initialization error (DPMEM write error)\n");
927 iounmap(ha->brd);
928 return 0;
929 }
930
931 /* disable board interrupts, deinit services */
a52667f3
JG		 932 writeb(0xff, &dp6_ptr->io.irqdel);
933 writeb(0x00, &dp6_ptr->io.irqen);
934 writeb(0x00, &dp6_ptr->u.ic.S_Status);
935 writeb(0x00, &dp6_ptr->u.ic.Cmd_Index);
936
937 writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]);
938 writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx);
939 writeb(0, &dp6_ptr->io.event);
1da177e4
LT		 940 retries = INIT_RETRIES;
941 gdth_delay(20);
a52667f3 942 while (readb(&dp6_ptr->u.ic.S_Status) != 0xff) {
1da177e4
LT		 943 if (--retries == 0) {
944 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
945 iounmap(ha->brd);
946 return 0;
947 }
948 gdth_delay(1);
949 }
a52667f3
JG		 950 prot_ver = (unchar)readl(&dp6_ptr->u.ic.S_Info[0]);
951 writeb(0, &dp6_ptr->u.ic.S_Status);
952 writeb(0xff, &dp6_ptr->io.irqdel);
1da177e4
LT		 953 if (prot_ver != PROTOCOL_VERSION) {
954 printk("GDT-PCI: Illegal protocol version\n");
955 iounmap(ha->brd);
956 return 0;
957 }
958
959 ha->type = GDT_PCI;
960 ha->ic_all_size = sizeof(dp6_ptr->u);
961
962 /* special command to controller BIOS */
a52667f3
JG		 963 writel(0x00, &dp6_ptr->u.ic.S_Info[0]);
964 writel(0x00, &dp6_ptr->u.ic.S_Info[1]);
965 writel(0x00, &dp6_ptr->u.ic.S_Info[2]);
966 writel(0x00, &dp6_ptr->u.ic.S_Info[3]);
967 writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx);
968 writeb(0, &dp6_ptr->io.event);
1da177e4
LT		 969 retries = INIT_RETRIES;
970 gdth_delay(20);
a52667f3 971 while (readb(&dp6_ptr->u.ic.S_Status) != 0xfe) {
1da177e4
LT		 972 if (--retries == 0) {
973 printk("GDT-PCI: Initialization error\n");
974 iounmap(ha->brd);
975 return 0;
976 }
977 gdth_delay(1);
978 }
a52667f3
JG		 979 writeb(0, &dp6_ptr->u.ic.S_Status);
980 writeb(0xff, &dp6_ptr->io.irqdel);
1da177e4
LT		 981
982 ha->dma64_support = 0;
983
8e9a8a0d 984 } else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */
1da177e4
LT		 985 ha->plx = (gdt6c_plx_regs *)pcistr->io;
986 TRACE2(("init_pci_new() dpmem %lx irq %d\n",
987 pcistr->dpmem,ha->irq));
988 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str));
989 if (ha->brd == NULL) {
990 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
991 iounmap(ha->brd);
992 return 0;
993 }
994 /* check and reset interface area */
995 dp6c_ptr = ha->brd;
a52667f3
JG		 996 writel(DPMEM_MAGIC, &dp6c_ptr->u);
997 if (readl(&dp6c_ptr->u) != DPMEM_MAGIC) {
1da177e4
LT		 998 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
999 pcistr->dpmem);
1000 found = FALSE;
1001 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1002 iounmap(ha->brd);
1003 ha->brd = ioremap(i, sizeof(ushort));
1004 if (ha->brd == NULL) {
1005 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1006 return 0;
1007 }
a52667f3 1008 if (readw(ha->brd) != 0xffff) {
1da177e4
LT		 1009 TRACE2(("init_pci_plx() address 0x%x busy\n", i));
1010 continue;
1011 }
1012 iounmap(ha->brd);
4c9c8d78 1013 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i);
1da177e4
LT		 1014 ha->brd = ioremap(i, sizeof(gdt6c_dpram_str));
1015 if (ha->brd == NULL) {
1016 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1017 return 0;
1018 }
1019 dp6c_ptr = ha->brd;
a52667f3
JG		 1020 writel(DPMEM_MAGIC, &dp6c_ptr->u);
1021 if (readl(&dp6c_ptr->u) == DPMEM_MAGIC) {
1da177e4
LT		 1022 printk("GDT-PCI: Use free address at 0x%x\n", i);
1023 found = TRUE;
1024 break;
1025 }
1026 }
1027 if (!found) {
1028 printk("GDT-PCI: No free address found!\n");
1029 iounmap(ha->brd);
1030 return 0;
1031 }
1032 }
1033 memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u));
a52667f3 1034 if (readl(&dp6c_ptr->u) != 0) {
1da177e4
LT		 1035 printk("GDT-PCI: Initialization error (DPMEM write error)\n");
1036 iounmap(ha->brd);
1037 return 0;
1038 }
1039
1040 /* disable board interrupts, deinit services */
1041 outb(0x00,PTR2USHORT(&ha->plx->control1));
1042 outb(0xff,PTR2USHORT(&ha->plx->edoor_reg));
1043
a52667f3
JG		 1044 writeb(0x00, &dp6c_ptr->u.ic.S_Status);
1045 writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index);
1da177e4 1046
a52667f3
JG		 1047 writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]);
1048 writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx);
1da177e4
LT		 1049
1050 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1051
1052 retries = INIT_RETRIES;
1053 gdth_delay(20);
a52667f3 1054 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xff) {
1da177e4
LT		 1055 if (--retries == 0) {
1056 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1057 iounmap(ha->brd);
1058 return 0;
1059 }
1060 gdth_delay(1);
1061 }
a52667f3
JG		 1062 prot_ver = (unchar)readl(&dp6c_ptr->u.ic.S_Info[0]);
1063 writeb(0, &dp6c_ptr->u.ic.Status);
1da177e4
LT		 1064 if (prot_ver != PROTOCOL_VERSION) {
1065 printk("GDT-PCI: Illegal protocol version\n");
1066 iounmap(ha->brd);
1067 return 0;
1068 }
1069
1070 ha->type = GDT_PCINEW;
1071 ha->ic_all_size = sizeof(dp6c_ptr->u);
1072
1073 /* special command to controller BIOS */
a52667f3
JG		 1074 writel(0x00, &dp6c_ptr->u.ic.S_Info[0]);
1075 writel(0x00, &dp6c_ptr->u.ic.S_Info[1]);
1076 writel(0x00, &dp6c_ptr->u.ic.S_Info[2]);
1077 writel(0x00, &dp6c_ptr->u.ic.S_Info[3]);
1078 writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx);
1da177e4
LT		 1079
1080 outb(1,PTR2USHORT(&ha->plx->ldoor_reg));
1081
1082 retries = INIT_RETRIES;
1083 gdth_delay(20);
a52667f3 1084 while (readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) {
1da177e4
LT		 1085 if (--retries == 0) {
1086 printk("GDT-PCI: Initialization error\n");
1087 iounmap(ha->brd);
1088 return 0;
1089 }
1090 gdth_delay(1);
1091 }
a52667f3 1092 writeb(0, &dp6c_ptr->u.ic.S_Status);
1da177e4
LT		 1093
1094 ha->dma64_support = 0;
1095
1096 } else { /* MPR */
1097 TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq));
1098 ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str));
1099 if (ha->brd == NULL) {
1100 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1101 return 0;
1102 }
1103
1104 /* manipulate config. space to enable DPMEM, start RP controller */
4c9c8d78 1105 pci_read_config_word(pdev, PCI_COMMAND, &command);
1da177e4 1106 command |= 6;
4c9c8d78
JG		 1107 pci_write_config_word(pdev, PCI_COMMAND, command);
1108 if (pci_resource_start(pdev, 8) == 1UL)
1109 pci_resource_start(pdev, 8) = 0UL;
1da177e4 1110 i = 0xFEFF0001UL;
4c9c8d78 1111 pci_write_config_dword(pdev, PCI_ROM_ADDRESS, i);
1da177e4 1112 gdth_delay(1);
4c9c8d78
JG		 1113 pci_write_config_dword(pdev, PCI_ROM_ADDRESS,
1114 pci_resource_start(pdev, 8));
1da177e4
LT		 1115
1116 dp6m_ptr = ha->brd;
1117
1118 /* Ensure that it is safe to access the non HW portions of DPMEM.
1119 * Aditional check needed for Xscale based RAID controllers */
a52667f3 1120 while( ((int)readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 )
1da177e4
LT		 1121 gdth_delay(1);
1122
1123 /* check and reset interface area */
a52667f3
JG		 1124 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1125 if (readl(&dp6m_ptr->u) != DPMEM_MAGIC) {
1da177e4
LT		 1126 printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n",
1127 pcistr->dpmem);
1128 found = FALSE;
1129 for (i = 0xC8000; i < 0xE8000; i += 0x4000) {
1130 iounmap(ha->brd);
1131 ha->brd = ioremap(i, sizeof(ushort));
1132 if (ha->brd == NULL) {
1133 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1134 return 0;
1135 }
a52667f3 1136 if (readw(ha->brd) != 0xffff) {
1da177e4
LT		 1137 TRACE2(("init_pci_mpr() address 0x%x busy\n", i));
1138 continue;
1139 }
1140 iounmap(ha->brd);
4c9c8d78 1141 pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i);
1da177e4
LT		 1142 ha->brd = ioremap(i, sizeof(gdt6m_dpram_str));
1143 if (ha->brd == NULL) {
1144 printk("GDT-PCI: Initialization error (DPMEM remap error)\n");
1145 return 0;
1146 }
1147 dp6m_ptr = ha->brd;
a52667f3
JG		 1148 writel(DPMEM_MAGIC, &dp6m_ptr->u);
1149 if (readl(&dp6m_ptr->u) == DPMEM_MAGIC) {
1da177e4
LT		 1150 printk("GDT-PCI: Use free address at 0x%x\n", i);
1151 found = TRUE;
1152 break;
1153 }
1154 }
1155 if (!found) {
1156 printk("GDT-PCI: No free address found!\n");
1157 iounmap(ha->brd);
1158 return 0;
1159 }
1160 }
1161 memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u));
1162
1163 /* disable board interrupts, deinit services */
a52667f3 1164 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) | 4,
1da177e4 1165 &dp6m_ptr->i960r.edoor_en_reg);
a52667f3
JG		 1166 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1167 writeb(0x00, &dp6m_ptr->u.ic.S_Status);
1168 writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index);
1da177e4 1169
a52667f3
JG		 1170 writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]);
1171 writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx);
1172 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1da177e4
LT		 1173 retries = INIT_RETRIES;
1174 gdth_delay(20);
a52667f3 1175 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xff) {
1da177e4
LT		 1176 if (--retries == 0) {
1177 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1178 iounmap(ha->brd);
1179 return 0;
1180 }
1181 gdth_delay(1);
1182 }
a52667f3
JG		 1183 prot_ver = (unchar)readl(&dp6m_ptr->u.ic.S_Info[0]);
1184 writeb(0, &dp6m_ptr->u.ic.S_Status);
1da177e4
LT		 1185 if (prot_ver != PROTOCOL_VERSION) {
1186 printk("GDT-PCI: Illegal protocol version\n");
1187 iounmap(ha->brd);
1188 return 0;
1189 }
1190
1191 ha->type = GDT_PCIMPR;
1192 ha->ic_all_size = sizeof(dp6m_ptr->u);
1193
1194 /* special command to controller BIOS */
a52667f3
JG		 1195 writel(0x00, &dp6m_ptr->u.ic.S_Info[0]);
1196 writel(0x00, &dp6m_ptr->u.ic.S_Info[1]);
1197 writel(0x00, &dp6m_ptr->u.ic.S_Info[2]);
1198 writel(0x00, &dp6m_ptr->u.ic.S_Info[3]);
1199 writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx);
1200 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1da177e4
LT		 1201 retries = INIT_RETRIES;
1202 gdth_delay(20);
a52667f3 1203 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) {
1da177e4
LT		 1204 if (--retries == 0) {
1205 printk("GDT-PCI: Initialization error\n");
1206 iounmap(ha->brd);
1207 return 0;
1208 }
1209 gdth_delay(1);
1210 }
a52667f3 1211 writeb(0, &dp6m_ptr->u.ic.S_Status);
1da177e4
LT		 1212
1213 /* read FW version to detect 64-bit DMA support */
a52667f3
JG		 1214 writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx);
1215 writeb(1, &dp6m_ptr->i960r.ldoor_reg);
1da177e4
LT		 1216 retries = INIT_RETRIES;
1217 gdth_delay(20);
a52667f3 1218 while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) {
1da177e4
LT		 1219 if (--retries == 0) {
1220 printk("GDT-PCI: Initialization error (DEINIT failed)\n");
1221 iounmap(ha->brd);
1222 return 0;
1223 }
1224 gdth_delay(1);
1225 }
a52667f3
JG		 1226 prot_ver = (unchar)(readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16);
1227 writeb(0, &dp6m_ptr->u.ic.S_Status);
1da177e4
LT		 1228 if (prot_ver < 0x2b) /* FW < x.43: no 64-bit DMA support */
1229 ha->dma64_support = 0;
1230 else
1231 ha->dma64_support = 1;
1232 }
1233
1234 return 1;
1235}
8514ef27 1236#endif /* CONFIG_PCI */
1da177e4
LT		 1237
1238/* controller protocol functions */
1239
45f1a41b 1240static void __init gdth_enable_int(gdth_ha_str *ha)
1da177e4 1241{
1da177e4
LT		 1242 ulong flags;
1243 gdt2_dpram_str __iomem *dp2_ptr;
1244 gdt6_dpram_str __iomem *dp6_ptr;
1245 gdt6m_dpram_str __iomem *dp6m_ptr;
1246
45f1a41b 1247 TRACE(("gdth_enable_int() hanum %d\n",ha->hanum));
1da177e4
LT		 1248 spin_lock_irqsave(&ha->smp_lock, flags);
1249
1250 if (ha->type == GDT_EISA) {
1251 outb(0xff, ha->bmic + EDOORREG);
1252 outb(0xff, ha->bmic + EDENABREG);
1253 outb(0x01, ha->bmic + EINTENABREG);
1254 } else if (ha->type == GDT_ISA) {
1255 dp2_ptr = ha->brd;
a52667f3
JG		 1256 writeb(1, &dp2_ptr->io.irqdel);
1257 writeb(0, &dp2_ptr->u.ic.Cmd_Index);
1258 writeb(1, &dp2_ptr->io.irqen);
1da177e4
LT		 1259 } else if (ha->type == GDT_PCI) {
1260 dp6_ptr = ha->brd;
a52667f3
JG		 1261 writeb(1, &dp6_ptr->io.irqdel);
1262 writeb(0, &dp6_ptr->u.ic.Cmd_Index);
1263 writeb(1, &dp6_ptr->io.irqen);
1da177e4
LT		 1264 } else if (ha->type == GDT_PCINEW) {
1265 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
1266 outb(0x03, PTR2USHORT(&ha->plx->control1));
1267 } else if (ha->type == GDT_PCIMPR) {
1268 dp6m_ptr = ha->brd;
a52667f3
JG		 1269 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
1270 writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4,
1da177e4
LT		 1271 &dp6m_ptr->i960r.edoor_en_reg);
1272 }
1273 spin_unlock_irqrestore(&ha->smp_lock, flags);
1274}
1275
10e1b4bc 1276/* return IStatus if interrupt was from this card else 0 */
230e886e 1277static unchar gdth_get_status(gdth_ha_str *ha)
1da177e4 1278{
10e1b4bc
BH		 1279 unchar IStatus = 0;
1280
230e886e 1281 TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
1da177e4 1282
1da177e4 1283 if (ha->type == GDT_EISA)
10e1b4bc 1284 IStatus = inb((ushort)ha->bmic + EDOORREG);
1da177e4 1285 else if (ha->type == GDT_ISA)
10e1b4bc 1286 IStatus =
a52667f3 1287 readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1da177e4 1288 else if (ha->type == GDT_PCI)
10e1b4bc 1289 IStatus =
a52667f3 1290 readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
1da177e4 1291 else if (ha->type == GDT_PCINEW)
10e1b4bc 1292 IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg));
1da177e4 1293 else if (ha->type == GDT_PCIMPR)
10e1b4bc 1294 IStatus =
a52667f3 1295 readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg);
10e1b4bc
BH		 1296
1297 return IStatus;
1da177e4 1298}
10e1b4bc 1299
45f1a41b 1300static int gdth_test_busy(gdth_ha_str *ha)
1da177e4 1301{
1da177e4
LT		 1302 register int gdtsema0 = 0;
1303
45f1a41b
BH		 1304 TRACE(("gdth_test_busy() hanum %d\n", ha->hanum));
1305
1da177e4
LT		 1306 if (ha->type == GDT_EISA)
1307 gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
1308 else if (ha->type == GDT_ISA)
a52667f3 1309 gdtsema0 = (int)readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1da177e4 1310 else if (ha->type == GDT_PCI)
a52667f3 1311 gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1da177e4
LT		 1312 else if (ha->type == GDT_PCINEW)
1313 gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
1314 else if (ha->type == GDT_PCIMPR)
1315 gdtsema0 =
a52667f3 1316 (int)readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1da177e4
LT		 1317
1318 return (gdtsema0 & 1);
1319}
1320
1321
45f1a41b 1322static int gdth_get_cmd_index(gdth_ha_str *ha)
1da177e4 1323{
1da177e4
LT		 1324 int i;
1325
45f1a41b 1326 TRACE(("gdth_get_cmd_index() hanum %d\n", ha->hanum));
1da177e4 1327
1da177e4
LT		 1328 for (i=0; i<GDTH_MAXCMDS; ++i) {
1329 if (ha->cmd_tab[i].cmnd == UNUSED_CMND) {
1330 ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer;
1331 ha->cmd_tab[i].service = ha->pccb->Service;
1332 ha->pccb->CommandIndex = (ulong32)i+2;
1333 return (i+2);
1334 }
1335 }
1336 return 0;
1337}
1338
1339
45f1a41b 1340static void gdth_set_sema0(gdth_ha_str *ha)
1da177e4 1341{
45f1a41b 1342 TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum));
1da177e4 1343
1da177e4
LT		 1344 if (ha->type == GDT_EISA) {
1345 outb(1, ha->bmic + SEMA0REG);
1346 } else if (ha->type == GDT_ISA) {
a52667f3 1347 writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1da177e4 1348 } else if (ha->type == GDT_PCI) {
a52667f3 1349 writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
1da177e4
LT		 1350 } else if (ha->type == GDT_PCINEW) {
1351 outb(1, PTR2USHORT(&ha->plx->sema0_reg));
1352 } else if (ha->type == GDT_PCIMPR) {
a52667f3 1353 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg);
1da177e4
LT		 1354 }
1355}
1356
1357
45f1a41b 1358static void gdth_copy_command(gdth_ha_str *ha)
1da177e4 1359{
1da177e4
LT		 1360 register gdth_cmd_str *cmd_ptr;
1361 register gdt6m_dpram_str __iomem *dp6m_ptr;
1362 register gdt6c_dpram_str __iomem *dp6c_ptr;
1363 gdt6_dpram_str __iomem *dp6_ptr;
1364 gdt2_dpram_str __iomem *dp2_ptr;
1365 ushort cp_count,dp_offset,cmd_no;
1366
45f1a41b 1367 TRACE(("gdth_copy_command() hanum %d\n", ha->hanum));
1da177e4 1368
1da177e4
LT		 1369 cp_count = ha->cmd_len;
1370 dp_offset= ha->cmd_offs_dpmem;
1371 cmd_no = ha->cmd_cnt;
1372 cmd_ptr = ha->pccb;
1373
1374 ++ha->cmd_cnt;
1375 if (ha->type == GDT_EISA)
1376 return; /* no DPMEM, no copy */
1377
1378 /* set cpcount dword aligned */
1379 if (cp_count & 3)
1380 cp_count += (4 - (cp_count & 3));
1381
1382 ha->cmd_offs_dpmem += cp_count;
1383
1384 /* set offset and service, copy command to DPMEM */
1385 if (ha->type == GDT_ISA) {
1386 dp2_ptr = ha->brd;
a52667f3 1387 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1da177e4 1388 &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
a52667f3 1389 writew((ushort)cmd_ptr->Service,
1da177e4
LT		 1390 &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
1391 memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1392 } else if (ha->type == GDT_PCI) {
1393 dp6_ptr = ha->brd;
a52667f3 1394 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1da177e4 1395 &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
a52667f3 1396 writew((ushort)cmd_ptr->Service,
1da177e4
LT		 1397 &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id);
1398 memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1399 } else if (ha->type == GDT_PCINEW) {
1400 dp6c_ptr = ha->brd;
a52667f3 1401 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1da177e4 1402 &dp6c_ptr->u.ic.comm_queue[cmd_no].offset);
a52667f3 1403 writew((ushort)cmd_ptr->Service,
1da177e4
LT		 1404 &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id);
1405 memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1406 } else if (ha->type == GDT_PCIMPR) {
1407 dp6m_ptr = ha->brd;
a52667f3 1408 writew(dp_offset + DPMEM_COMMAND_OFFSET,
1da177e4 1409 &dp6m_ptr->u.ic.comm_queue[cmd_no].offset);
a52667f3 1410 writew((ushort)cmd_ptr->Service,
1da177e4
LT		 1411 &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id);
1412 memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
1413 }
1414}
1415
1416
45f1a41b 1417static void gdth_release_event(gdth_ha_str *ha)
1da177e4 1418{
45f1a41b 1419 TRACE(("gdth_release_event() hanum %d\n", ha->hanum));
1da177e4
LT		 1420
1421#ifdef GDTH_STATISTICS
1422 {
1423 ulong32 i,j;
1424 for (i=0,j=0; j<GDTH_MAXCMDS; ++j) {
1425 if (ha->cmd_tab[j].cmnd != UNUSED_CMND)
1426 ++i;
1427 }
1428 if (max_index < i) {
1429 max_index = i;
1430 TRACE3(("GDT: max_index = %d\n",(ushort)i));
1431 }
1432 }
1433#endif
1434
1435 if (ha->pccb->OpCode == GDT_INIT)
1436 ha->pccb->Service |= 0x80;
1437
1438 if (ha->type == GDT_EISA) {
1439 if (ha->pccb->OpCode == GDT_INIT) /* store DMA buffer */
1440 outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
1441 outb(ha->pccb->Service, ha->bmic + LDOORREG);
1442 } else if (ha->type == GDT_ISA) {
a52667f3 1443 writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
1da177e4 1444 } else if (ha->type == GDT_PCI) {
a52667f3 1445 writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
1da177e4
LT		 1446 } else if (ha->type == GDT_PCINEW) {
1447 outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
1448 } else if (ha->type == GDT_PCIMPR) {
a52667f3 1449 writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg);
1da177e4
LT		 1450 }
1451}
1452
45f1a41b 1453static int gdth_wait(gdth_ha_str *ha, int index, ulong32 time)
1da177e4 1454{
1da177e4 1455 int answer_found = FALSE;
10e1b4bc 1456 int wait_index = 0;
1da177e4 1457
45f1a41b 1458 TRACE(("gdth_wait() hanum %d index %d time %d\n", ha->hanum, index, time));
1da177e4 1459
1da177e4
LT		 1460 if (index == 0)
1461 return 1; /* no wait required */
1462
1da177e4 1463 do {
230e886e 1464 __gdth_interrupt(ha, true, &wait_index);
10e1b4bc 1465 if (wait_index == index) {
1da177e4
LT		 1466 answer_found = TRUE;
1467 break;
1468 }
1469 gdth_delay(1);
1470 } while (--time);
45f1a41b
BH		 1471
1472 while (gdth_test_busy(ha))
1da177e4
LT		 1473 gdth_delay(0);
1474
1475 return (answer_found);
1476}
1477
1478
45f1a41b
BH		 1479static int gdth_internal_cmd(gdth_ha_str *ha, unchar service, ushort opcode,
1480 ulong32 p1, ulong64 p2, ulong64 p3)
1da177e4 1481{
1da177e4
LT		 1482 register gdth_cmd_str *cmd_ptr;
1483 int retries,index;
1484
1485 TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode));
1486
1da177e4
LT		 1487 cmd_ptr = ha->pccb;
1488 memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str));
1489
1490 /* make command */
1491 for (retries = INIT_RETRIES;;) {
1492 cmd_ptr->Service = service;
1493 cmd_ptr->RequestBuffer = INTERNAL_CMND;
45f1a41b 1494 if (!(index=gdth_get_cmd_index(ha))) {
1da177e4
LT		 1495 TRACE(("GDT: No free command index found\n"));
1496 return 0;
1497 }
45f1a41b 1498 gdth_set_sema0(ha);
1da177e4
LT		 1499 cmd_ptr->OpCode = opcode;
1500 cmd_ptr->BoardNode = LOCALBOARD;
1501 if (service == CACHESERVICE) {
1502 if (opcode == GDT_IOCTL) {
1503 cmd_ptr->u.ioctl.subfunc = p1;
1504 cmd_ptr->u.ioctl.channel = (ulong32)p2;
1505 cmd_ptr->u.ioctl.param_size = (ushort)p3;
1506 cmd_ptr->u.ioctl.p_param = ha->scratch_phys;
1507 } else {
1508 if (ha->cache_feat & GDT_64BIT) {
1509 cmd_ptr->u.cache64.DeviceNo = (ushort)p1;
1510 cmd_ptr->u.cache64.BlockNo = p2;
1511 } else {
1512 cmd_ptr->u.cache.DeviceNo = (ushort)p1;
1513 cmd_ptr->u.cache.BlockNo = (ulong32)p2;
1514 }
1515 }
1516 } else if (service == SCSIRAWSERVICE) {
1517 if (ha->raw_feat & GDT_64BIT) {
1518 cmd_ptr->u.raw64.direction = p1;
1519 cmd_ptr->u.raw64.bus = (unchar)p2;
1520 cmd_ptr->u.raw64.target = (unchar)p3;
1521 cmd_ptr->u.raw64.lun = (unchar)(p3 >> 8);
1522 } else {
1523 cmd_ptr->u.raw.direction = p1;
1524 cmd_ptr->u.raw.bus = (unchar)p2;
1525 cmd_ptr->u.raw.target = (unchar)p3;
1526 cmd_ptr->u.raw.lun = (unchar)(p3 >> 8);
1527 }
1528 } else if (service == SCREENSERVICE) {
1529 if (opcode == GDT_REALTIME) {
1530 *(ulong32 *)&cmd_ptr->u.screen.su.data[0] = p1;
1531 *(ulong32 *)&cmd_ptr->u.screen.su.data[4] = (ulong32)p2;
1532 *(ulong32 *)&cmd_ptr->u.screen.su.data[8] = (ulong32)p3;
1533 }
1534 }
1535 ha->cmd_len = sizeof(gdth_cmd_str);
1536 ha->cmd_offs_dpmem = 0;
1537 ha->cmd_cnt = 0;
45f1a41b
BH		 1538 gdth_copy_command(ha);
1539 gdth_release_event(ha);
1da177e4 1540 gdth_delay(20);
45f1a41b 1541 if (!gdth_wait(ha, index, INIT_TIMEOUT)) {
1da177e4
LT		 1542 printk("GDT: Initialization error (timeout service %d)\n",service);
1543 return 0;
1544 }
1545 if (ha->status != S_BSY || --retries == 0)
1546 break;
1547 gdth_delay(1);
1548 }
1549
1550 return (ha->status != S_OK ? 0:1);
1551}
1552
1553
1554/* search for devices */
1555
45f1a41b 1556static int __init gdth_search_drives(gdth_ha_str *ha)
1da177e4 1557{
1da177e4
LT		 1558 ushort cdev_cnt, i;
1559 int ok;
1560 ulong32 bus_no, drv_cnt, drv_no, j;
1561 gdth_getch_str *chn;
1562 gdth_drlist_str *drl;
1563 gdth_iochan_str *ioc;
1564 gdth_raw_iochan_str *iocr;
1565 gdth_arcdl_str *alst;
1566 gdth_alist_str *alst2;
1567 gdth_oem_str_ioctl *oemstr;
1568#ifdef INT_COAL
1569 gdth_perf_modes *pmod;
1570#endif
1571
1572#ifdef GDTH_RTC
1573 unchar rtc[12];
1574 ulong flags;
1575#endif
1576
45f1a41b 1577 TRACE(("gdth_search_drives() hanum %d\n", ha->hanum));
1da177e4
LT		 1578 ok = 0;
1579
1580 /* initialize controller services, at first: screen service */
1581 ha->screen_feat = 0;
1582 if (!force_dma32) {
45f1a41b 1583 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_X_INIT_SCR, 0, 0, 0);
1da177e4
LT		 1584 if (ok)
1585 ha->screen_feat = GDT_64BIT;
1586 }
1587 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
45f1a41b 1588 ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_INIT, 0, 0, 0);
1da177e4
LT		 1589 if (!ok) {
1590 printk("GDT-HA %d: Initialization error screen service (code %d)\n",
45f1a41b 1591 ha->hanum, ha->status);
1da177e4
LT		 1592 return 0;
1593 }
1594 TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n"));
1595
1596#ifdef GDTH_RTC
1597 /* read realtime clock info, send to controller */
1598 /* 1. wait for the falling edge of update flag */
1599 spin_lock_irqsave(&rtc_lock, flags);
1600 for (j = 0; j < 1000000; ++j)
1601 if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
1602 break;
1603 for (j = 0; j < 1000000; ++j)
1604 if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
1605 break;
1606 /* 2. read info */
1607 do {
1608 for (j = 0; j < 12; ++j)
1609 rtc[j] = CMOS_READ(j);
1610 } while (rtc[0] != CMOS_READ(0));
7a960b76 1611 spin_unlock_irqrestore(&rtc_lock, flags);
1da177e4
LT		 1612 TRACE2(("gdth_search_drives(): RTC: %x/%x/%x\n",*(ulong32 *)&rtc[0],
1613 *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]));
1614 /* 3. send to controller firmware */
45f1a41b 1615 gdth_internal_cmd(ha, SCREENSERVICE, GDT_REALTIME, *(ulong32 *)&rtc[0],
1da177e4
LT		 1616 *(ulong32 *)&rtc[4], *(ulong32 *)&rtc[8]);
1617#endif
1618
1619 /* unfreeze all IOs */
45f1a41b 1620 gdth_internal_cmd(ha, CACHESERVICE, GDT_UNFREEZE_IO, 0, 0, 0);
1da177e4
LT		 1621
1622 /* initialize cache service */
1623 ha->cache_feat = 0;
1624 if (!force_dma32) {
45f1a41b
BH		 1625 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INIT_HOST, LINUX_OS,
1626 0, 0);
1da177e4
LT		 1627 if (ok)
1628 ha->cache_feat = GDT_64BIT;
1629 }
1630 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
45f1a41b 1631 ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_INIT, LINUX_OS, 0, 0);
1da177e4
LT		 1632 if (!ok) {
1633 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
45f1a41b 1634 ha->hanum, ha->status);
1da177e4
LT		 1635 return 0;
1636 }
1637 TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n"));
1638 cdev_cnt = (ushort)ha->info;
1639 ha->fw_vers = ha->service;
1640
1641#ifdef INT_COAL
1642 if (ha->type == GDT_PCIMPR) {
1643 /* set perf. modes */
1644 pmod = (gdth_perf_modes *)ha->pscratch;
1645 pmod->version = 1;
1646 pmod->st_mode = 1; /* enable one status buffer */
1647 *((ulong64 *)&pmod->st_buff_addr1) = ha->coal_stat_phys;
1648 pmod->st_buff_indx1 = COALINDEX;
1649 pmod->st_buff_addr2 = 0;
1650 pmod->st_buff_u_addr2 = 0;
1651 pmod->st_buff_indx2 = 0;
1652 pmod->st_buff_size = sizeof(gdth_coal_status) * MAXOFFSETS;
1653 pmod->cmd_mode = 0; // disable all cmd buffers
1654 pmod->cmd_buff_addr1 = 0;
1655 pmod->cmd_buff_u_addr1 = 0;
1656 pmod->cmd_buff_indx1 = 0;
1657 pmod->cmd_buff_addr2 = 0;
1658 pmod->cmd_buff_u_addr2 = 0;
1659 pmod->cmd_buff_indx2 = 0;
1660 pmod->cmd_buff_size = 0;
1661 pmod->reserved1 = 0;
1662 pmod->reserved2 = 0;
45f1a41b 1663 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, SET_PERF_MODES,
1da177e4 1664 INVALID_CHANNEL,sizeof(gdth_perf_modes))) {
45f1a41b 1665 printk("GDT-HA %d: Interrupt coalescing activated\n", ha->hanum);
1da177e4
LT		 1666 }
1667 }
1668#endif
1669
1670 /* detect number of buses - try new IOCTL */
1671 iocr = (gdth_raw_iochan_str *)ha->pscratch;
1672 iocr->hdr.version = 0xffffffff;
1673 iocr->hdr.list_entries = MAXBUS;
1674 iocr->hdr.first_chan = 0;
1675 iocr->hdr.last_chan = MAXBUS-1;
1676 iocr->hdr.list_offset = GDTOFFSOF(gdth_raw_iochan_str, list[0]);
45f1a41b 1677 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_RAW_DESC,
1da177e4
LT		 1678 INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) {
1679 TRACE2(("IOCHAN_RAW_DESC supported!\n"));
1680 ha->bus_cnt = iocr->hdr.chan_count;
1681 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1682 if (iocr->list[bus_no].proc_id < MAXID)
1683 ha->bus_id[bus_no] = iocr->list[bus_no].proc_id;
1684 else
1685 ha->bus_id[bus_no] = 0xff;
1686 }
1687 } else {
1688 /* old method */
1689 chn = (gdth_getch_str *)ha->pscratch;
1690 for (bus_no = 0; bus_no < MAXBUS; ++bus_no) {
1691 chn->channel_no = bus_no;
45f1a41b 1692 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1693 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1694 IO_CHANNEL | INVALID_CHANNEL,
1695 sizeof(gdth_getch_str))) {
1696 if (bus_no == 0) {
1697 printk("GDT-HA %d: Error detecting channel count (0x%x)\n",
45f1a41b 1698 ha->hanum, ha->status);
1da177e4
LT		 1699 return 0;
1700 }
1701 break;
1702 }
1703 if (chn->siop_id < MAXID)
1704 ha->bus_id[bus_no] = chn->siop_id;
1705 else
1706 ha->bus_id[bus_no] = 0xff;
1707 }
1708 ha->bus_cnt = (unchar)bus_no;
1709 }
1710 TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt));
1711
1712 /* read cache configuration */
45f1a41b 1713 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_INFO,
1da177e4
LT		 1714 INVALID_CHANNEL,sizeof(gdth_cinfo_str))) {
1715 printk("GDT-HA %d: Initialization error cache service (code %d)\n",
45f1a41b 1716 ha->hanum, ha->status);
1da177e4
LT		 1717 return 0;
1718 }
1719 ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar;
1720 TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n",
1721 ha->cpar.version,ha->cpar.state,ha->cpar.strategy,
1722 ha->cpar.write_back,ha->cpar.block_size));
1723
1724 /* read board info and features */
1725 ha->more_proc = FALSE;
45f1a41b 1726 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_INFO,
1da177e4
LT		 1727 INVALID_CHANNEL,sizeof(gdth_binfo_str))) {
1728 memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch,
1729 sizeof(gdth_binfo_str));
45f1a41b 1730 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_FEATURES,
1da177e4
LT		 1731 INVALID_CHANNEL,sizeof(gdth_bfeat_str))) {
1732 TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n"));
1733 ha->bfeat = *(gdth_bfeat_str *)ha->pscratch;
1734 ha->more_proc = TRUE;
1735 }
1736 } else {
1737 TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n"));
45f1a41b 1738 strcpy(ha->binfo.type_string, gdth_ctr_name(ha));
1da177e4
LT		 1739 }
1740 TRACE2(("Controller name: %s\n",ha->binfo.type_string));
1741
1742 /* read more informations */
1743 if (ha->more_proc) {
1744 /* physical drives, channel addresses */
1745 ioc = (gdth_iochan_str *)ha->pscratch;
1746 ioc->hdr.version = 0xffffffff;
1747 ioc->hdr.list_entries = MAXBUS;
1748 ioc->hdr.first_chan = 0;
1749 ioc->hdr.last_chan = MAXBUS-1;
1750 ioc->hdr.list_offset = GDTOFFSOF(gdth_iochan_str, list[0]);
45f1a41b 1751 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_DESC,
1da177e4
LT		 1752 INVALID_CHANNEL,sizeof(gdth_iochan_str))) {
1753 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1754 ha->raw[bus_no].address = ioc->list[bus_no].address;
1755 ha->raw[bus_no].local_no = ioc->list[bus_no].local_no;
1756 }
1757 } else {
1758 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1759 ha->raw[bus_no].address = IO_CHANNEL;
1760 ha->raw[bus_no].local_no = bus_no;
1761 }
1762 }
1763 for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) {
1764 chn = (gdth_getch_str *)ha->pscratch;
1765 chn->channel_no = ha->raw[bus_no].local_no;
45f1a41b 1766 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1767 SCSI_CHAN_CNT | L_CTRL_PATTERN,
1768 ha->raw[bus_no].address | INVALID_CHANNEL,
1769 sizeof(gdth_getch_str))) {
1770 ha->raw[bus_no].pdev_cnt = chn->drive_cnt;
1771 TRACE2(("Channel %d: %d phys. drives\n",
1772 bus_no,chn->drive_cnt));
1773 }
1774 if (ha->raw[bus_no].pdev_cnt > 0) {
1775 drl = (gdth_drlist_str *)ha->pscratch;
1776 drl->sc_no = ha->raw[bus_no].local_no;
1777 drl->sc_cnt = ha->raw[bus_no].pdev_cnt;
45f1a41b 1778 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1779 SCSI_DR_LIST | L_CTRL_PATTERN,
1780 ha->raw[bus_no].address | INVALID_CHANNEL,
1781 sizeof(gdth_drlist_str))) {
1782 for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j)
1783 ha->raw[bus_no].id_list[j] = drl->sc_list[j];
1784 } else {
1785 ha->raw[bus_no].pdev_cnt = 0;
1786 }
1787 }
1788 }
1789
1790 /* logical drives */
45f1a41b 1791 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_CNT,
1da177e4
LT		 1792 INVALID_CHANNEL,sizeof(ulong32))) {
1793 drv_cnt = *(ulong32 *)ha->pscratch;
45f1a41b 1794 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_LIST,
1da177e4
LT		 1795 INVALID_CHANNEL,drv_cnt * sizeof(ulong32))) {
1796 for (j = 0; j < drv_cnt; ++j) {
1797 drv_no = ((ulong32 *)ha->pscratch)[j];
1798 if (drv_no < MAX_LDRIVES) {
1799 ha->hdr[drv_no].is_logdrv = TRUE;
1800 TRACE2(("Drive %d is log. drive\n",drv_no));
1801 }
1802 }
1803 }
1804 alst = (gdth_arcdl_str *)ha->pscratch;
1805 alst->entries_avail = MAX_LDRIVES;
1806 alst->first_entry = 0;
1807 alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]);
45f1a41b 1808 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1809 ARRAY_DRV_LIST2 | LA_CTRL_PATTERN,
1810 INVALID_CHANNEL, sizeof(gdth_arcdl_str) +
1811 (alst->entries_avail-1) * sizeof(gdth_alist_str))) {
1812 for (j = 0; j < alst->entries_init; ++j) {
1813 ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd;
1814 ha->hdr[j].is_master = alst->list[j].is_master;
1815 ha->hdr[j].is_parity = alst->list[j].is_parity;
1816 ha->hdr[j].is_hotfix = alst->list[j].is_hotfix;
1817 ha->hdr[j].master_no = alst->list[j].cd_handle;
1818 }
45f1a41b 1819 } else if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1820 ARRAY_DRV_LIST | LA_CTRL_PATTERN,
1821 0, 35 * sizeof(gdth_alist_str))) {
1822 for (j = 0; j < 35; ++j) {
1823 alst2 = &((gdth_alist_str *)ha->pscratch)[j];
1824 ha->hdr[j].is_arraydrv = alst2->is_arrayd;
1825 ha->hdr[j].is_master = alst2->is_master;
1826 ha->hdr[j].is_parity = alst2->is_parity;
1827 ha->hdr[j].is_hotfix = alst2->is_hotfix;
1828 ha->hdr[j].master_no = alst2->cd_handle;
1829 }
1830 }
1831 }
1832 }
1833
1834 /* initialize raw service */
1835 ha->raw_feat = 0;
1836 if (!force_dma32) {
45f1a41b 1837 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_X_INIT_RAW, 0, 0, 0);
1da177e4
LT		 1838 if (ok)
1839 ha->raw_feat = GDT_64BIT;
1840 }
1841 if (force_dma32 || (!ok && ha->status == (ushort)S_NOFUNC))
45f1a41b 1842 ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_INIT, 0, 0, 0);
1da177e4
LT		 1843 if (!ok) {
1844 printk("GDT-HA %d: Initialization error raw service (code %d)\n",
45f1a41b 1845 ha->hanum, ha->status);
1da177e4
LT		 1846 return 0;
1847 }
1848 TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n"));
1849
1850 /* set/get features raw service (scatter/gather) */
45f1a41b
BH		 1851 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_SET_FEAT, SCATTER_GATHER,
1852 0, 0)) {
1da177e4 1853 TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n"));
45f1a41b 1854 if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1da177e4
LT		 1855 TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n",
1856 ha->info));
1857 ha->raw_feat |= (ushort)ha->info;
1858 }
1859 }
1860
1861 /* set/get features cache service (equal to raw service) */
45f1a41b 1862 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_SET_FEAT, 0,
1da177e4
LT		 1863 SCATTER_GATHER,0)) {
1864 TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n"));
45f1a41b 1865 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) {
1da177e4
LT		 1866 TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n",
1867 ha->info));
1868 ha->cache_feat |= (ushort)ha->info;
1869 }
1870 }
1871
1872 /* reserve drives for raw service */
1873 if (reserve_mode != 0) {
45f1a41b 1874 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE_ALL,
1da177e4
LT		 1875 reserve_mode == 1 ? 1 : 3, 0, 0);
1876 TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n",
1877 ha->status));
1878 }
1879 for (i = 0; i < MAX_RES_ARGS; i += 4) {
45f1a41b 1880 if (reserve_list[i] == ha->hanum && reserve_list[i+1] < ha->bus_cnt &&
1da177e4
LT		 1881 reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) {
1882 TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n",
1883 reserve_list[i], reserve_list[i+1],
1884 reserve_list[i+2], reserve_list[i+3]));
45f1a41b 1885 if (!gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE, 0,
1da177e4
LT		 1886 reserve_list[i+1], reserve_list[i+2] |
1887 (reserve_list[i+3] << 8))) {
1888 printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n",
45f1a41b 1889 ha->hanum, ha->status);
1da177e4
LT		 1890 }
1891 }
1892 }
1893
1894 /* Determine OEM string using IOCTL */
1895 oemstr = (gdth_oem_str_ioctl *)ha->pscratch;
1896 oemstr->params.ctl_version = 0x01;
1897 oemstr->params.buffer_size = sizeof(oemstr->text);
45f1a41b 1898 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL,
1da177e4
LT		 1899 CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL,
1900 sizeof(gdth_oem_str_ioctl))) {
1901 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n"));
1902 printk("GDT-HA %d: Vendor: %s Name: %s\n",
45f1a41b 1903 ha->hanum, oemstr->text.oem_company_name, ha->binfo.type_string);
1da177e4 1904 /* Save the Host Drive inquiry data */
1da177e4
LT		 1905 strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id,
1906 sizeof(ha->oem_name));
1da177e4
LT		 1907 } else {
1908 /* Old method, based on PCI ID */
1909 TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n"));
1910 printk("GDT-HA %d: Name: %s\n",
45f1a41b 1911 ha->hanum, ha->binfo.type_string);
1da177e4
LT		 1912 if (ha->oem_id == OEM_ID_INTEL)
1913 strlcpy(ha->oem_name,"Intel ", sizeof(ha->oem_name));
1914 else
1915 strlcpy(ha->oem_name,"ICP ", sizeof(ha->oem_name));
1da177e4
LT		 1916 }
1917
1918 /* scanning for host drives */
1919 for (i = 0; i < cdev_cnt; ++i)
45f1a41b 1920 gdth_analyse_hdrive(ha, i);
1da177e4
LT		 1921
1922 TRACE(("gdth_search_drives() OK\n"));
1923 return 1;
1924}
1925
45f1a41b 1926static int gdth_analyse_hdrive(gdth_ha_str *ha, ushort hdrive)
1da177e4 1927{
1da177e4
LT		 1928 ulong32 drv_cyls;
1929 int drv_hds, drv_secs;
1930
45f1a41b 1931 TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n", ha->hanum, hdrive));
1da177e4
LT		 1932 if (hdrive >= MAX_HDRIVES)
1933 return 0;
1da177e4 1934
45f1a41b 1935 if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_INFO, hdrive, 0, 0))
1da177e4
LT		 1936 return 0;
1937 ha->hdr[hdrive].present = TRUE;
1938 ha->hdr[hdrive].size = ha->info;
1939
1940 /* evaluate mapping (sectors per head, heads per cylinder) */
1941 ha->hdr[hdrive].size &= ~SECS32;
1942 if (ha->info2 == 0) {
1943 gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs);
1944 } else {
1945 drv_hds = ha->info2 & 0xff;
1946 drv_secs = (ha->info2 >> 8) & 0xff;
1947 drv_cyls = (ulong32)ha->hdr[hdrive].size / drv_hds / drv_secs;
1948 }
1949 ha->hdr[hdrive].heads = (unchar)drv_hds;
1950 ha->hdr[hdrive].secs = (unchar)drv_secs;
1951 /* round size */
1952 ha->hdr[hdrive].size = drv_cyls * drv_hds * drv_secs;
1953
1954 if (ha->cache_feat & GDT_64BIT) {
45f1a41b 1955 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INFO, hdrive, 0, 0)
1da177e4
LT		 1956 && ha->info2 != 0) {
1957 ha->hdr[hdrive].size = ((ulong64)ha->info2 << 32) | ha->info;
1958 }
1959 }
1960 TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n",
1961 hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs));
1962
1963 /* get informations about device */
45f1a41b 1964 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_DEVTYPE, hdrive, 0, 0)) {
1da177e4
LT		 1965 TRACE2(("gdth_search_dr() cache drive %d devtype %d\n",
1966 hdrive,ha->info));
1967 ha->hdr[hdrive].devtype = (ushort)ha->info;
1968 }
1969
1970 /* cluster info */
45f1a41b 1971 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_CLUST_INFO, hdrive, 0, 0)) {
1da177e4
LT		 1972 TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n",
1973 hdrive,ha->info));
1974 if (!shared_access)
1975 ha->hdr[hdrive].cluster_type = (unchar)ha->info;
1976 }
1977
1978 /* R/W attributes */
45f1a41b 1979 if (gdth_internal_cmd(ha, CACHESERVICE, GDT_RW_ATTRIBS, hdrive, 0, 0)) {
1da177e4
LT		 1980 TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n",
1981 hdrive,ha->info));
1982 ha->hdr[hdrive].rw_attribs = (unchar)ha->info;
1983 }
1984
1985 return 1;
1986}
1987
1988
1989/* command queueing/sending functions */
1990
45f1a41b 1991static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority)
1da177e4 1992{
3058d5de 1993 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1da177e4
LT		 1994 register Scsi_Cmnd *pscp;
1995 register Scsi_Cmnd *nscp;
1996 ulong flags;
1997 unchar b, t;
1998
1999 TRACE(("gdth_putq() priority %d\n",priority));
1da177e4
LT		 2000 spin_lock_irqsave(&ha->smp_lock, flags);
2001
3058d5de 2002 if (!cmndinfo->internal_command) {
f842b64e 2003 cmndinfo->priority = priority;
52759e6a 2004 b = scp->device->channel;
cbd5f69b
LA		 2005 t = scp->device->id;
2006 if (priority >= DEFAULT_PRI) {
2007 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2008 (b==ha->virt_bus && t<MAX_HDRIVES && ha->hdr[t].lock)) {
2009 TRACE2(("gdth_putq(): locked IO ->update_timeout()\n"));
f842b64e 2010 cmndinfo->timeout = gdth_update_timeout(scp, 0);
cbd5f69b 2011 }
1da177e4
LT		 2012 }
2013 }
2014
2015 if (ha->req_first==NULL) {
2016 ha->req_first = scp; /* queue was empty */
2017 scp->SCp.ptr = NULL;
2018 } else { /* queue not empty */
2019 pscp = ha->req_first;
2020 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2021 /* priority: 0-highest,..,0xff-lowest */
f842b64e 2022 while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) {
1da177e4
LT		 2023 pscp = nscp;
2024 nscp = (Scsi_Cmnd *)pscp->SCp.ptr;
2025 }
2026 pscp->SCp.ptr = (char *)scp;
2027 scp->SCp.ptr = (char *)nscp;
2028 }
2029 spin_unlock_irqrestore(&ha->smp_lock, flags);
2030
2031#ifdef GDTH_STATISTICS
2032 flags = 0;
2033 for (nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
2034 ++flags;
2035 if (max_rq < flags) {
2036 max_rq = flags;
2037 TRACE3(("GDT: max_rq = %d\n",(ushort)max_rq));
2038 }
2039#endif
2040}
2041
45f1a41b 2042static void gdth_next(gdth_ha_str *ha)
1da177e4 2043{
1da177e4
LT		 2044 register Scsi_Cmnd *pscp;
2045 register Scsi_Cmnd *nscp;
2046 unchar b, t, l, firsttime;
2047 unchar this_cmd, next_cmd;
2048 ulong flags = 0;
2049 int cmd_index;
2050
45f1a41b 2051 TRACE(("gdth_next() hanum %d\n", ha->hanum));
1da177e4
LT		 2052 if (!gdth_polling)
2053 spin_lock_irqsave(&ha->smp_lock, flags);
2054
2055 ha->cmd_cnt = ha->cmd_offs_dpmem = 0;
2056 this_cmd = firsttime = TRUE;
2057 next_cmd = gdth_polling ? FALSE:TRUE;
2058 cmd_index = 0;
2059
2060 for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) {
f842b64e 2061 struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp);
1da177e4
LT		 2062 if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr)
2063 pscp = (Scsi_Cmnd *)pscp->SCp.ptr;
f842b64e 2064 if (!nscp_cmndinfo->internal_command) {
52759e6a 2065 b = nscp->device->channel;
cbd5f69b
LA		 2066 t = nscp->device->id;
2067 l = nscp->device->lun;
f842b64e 2068 if (nscp_cmndinfo->priority >= DEFAULT_PRI) {
cbd5f69b
LA		 2069 if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) ||
2070 (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock))
2071 continue;
2072 }
2073 } else
2074 b = t = l = 0;
1da177e4
LT		 2075
2076 if (firsttime) {
45f1a41b
BH		 2077 if (gdth_test_busy(ha)) { /* controller busy ? */
2078 TRACE(("gdth_next() controller %d busy !\n", ha->hanum));
1da177e4
LT		 2079 if (!gdth_polling) {
2080 spin_unlock_irqrestore(&ha->smp_lock, flags);
2081 return;
2082 }
45f1a41b 2083 while (gdth_test_busy(ha))
1da177e4
LT		 2084 gdth_delay(1);
2085 }
2086 firsttime = FALSE;
2087 }
2088
f842b64e
BH		 2089 if (!nscp_cmndinfo->internal_command) {
2090 if (nscp_cmndinfo->phase == -1) {
2091 nscp_cmndinfo->phase = CACHESERVICE; /* default: cache svc. */
1da177e4
LT		 2092 if (nscp->cmnd[0] == TEST_UNIT_READY) {
2093 TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n",
2094 b, t, l));
2095 /* TEST_UNIT_READY -> set scan mode */
2096 if ((ha->scan_mode & 0x0f) == 0) {
2097 if (b == 0 && t == 0 && l == 0) {
2098 ha->scan_mode |= 1;
2099 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2100 }
2101 } else if ((ha->scan_mode & 0x0f) == 1) {
2102 if (b == 0 && ((t == 0 && l == 1) ||
2103 (t == 1 && l == 0))) {
f842b64e
BH		 2104 nscp_cmndinfo->OpCode = GDT_SCAN_START;
2105 nscp_cmndinfo->phase = ((ha->scan_mode & 0x10 ? 1:0) << 8)
1da177e4
LT		 2106 | SCSIRAWSERVICE;
2107 ha->scan_mode = 0x12;
2108 TRACE2(("Scan mode: 0x%x (SCAN_START)\n",
2109 ha->scan_mode));
2110 } else {
2111 ha->scan_mode &= 0x10;
2112 TRACE2(("Scan mode: 0x%x\n", ha->scan_mode));
2113 }
2114 } else if (ha->scan_mode == 0x12) {
2115 if (b == ha->bus_cnt && t == ha->tid_cnt-1) {
f842b64e
BH		 2116 nscp_cmndinfo->phase = SCSIRAWSERVICE;
2117 nscp_cmndinfo->OpCode = GDT_SCAN_END;
1da177e4
LT		 2118 ha->scan_mode &= 0x10;
2119 TRACE2(("Scan mode: 0x%x (SCAN_END)\n",
2120 ha->scan_mode));
2121 }
2122 }
2123 }
2124 if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY &&
2125 nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE &&
2126 (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) {
2127 /* always GDT_CLUST_INFO! */
f842b64e 2128 nscp_cmndinfo->OpCode = GDT_CLUST_INFO;
1da177e4
LT		 2129 }
2130 }
2131 }
2132
f842b64e
BH		 2133 if (nscp_cmndinfo->OpCode != -1) {
2134 if ((nscp_cmndinfo->phase & 0xff) == CACHESERVICE) {
45f1a41b 2135 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
1da177e4
LT		 2136 this_cmd = FALSE;
2137 next_cmd = FALSE;
f842b64e 2138 } else if ((nscp_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) {
45f1a41b 2139 if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
1da177e4
LT		 2140 this_cmd = FALSE;
2141 next_cmd = FALSE;
2142 } else {
2143 memset((char*)nscp->sense_buffer,0,16);
2144 nscp->sense_buffer[0] = 0x70;
2145 nscp->sense_buffer[2] = NOT_READY;
2146 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
f842b64e
BH		 2147 if (!nscp_cmndinfo->wait_for_completion)
2148 nscp_cmndinfo->wait_for_completion++;
1da177e4 2149 else
b8bff2ae 2150 gdth_scsi_done(nscp);
1da177e4 2151 }
3058d5de 2152 } else if (gdth_cmnd_priv(nscp)->internal_command) {
45f1a41b 2153 if (!(cmd_index=gdth_special_cmd(ha, nscp)))
1da177e4
LT		 2154 this_cmd = FALSE;
2155 next_cmd = FALSE;
2156 } else if (b != ha->virt_bus) {
2157 if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW ||
45f1a41b 2158 !(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b))))
1da177e4
LT		 2159 this_cmd = FALSE;
2160 else
2161 ha->raw[BUS_L2P(ha,b)].io_cnt[t]++;
2162 } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) {
2163 TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n",
2164 nscp->cmnd[0], b, t, l));
2165 nscp->result = DID_BAD_TARGET << 16;
f842b64e
BH		 2166 if (!nscp_cmndinfo->wait_for_completion)
2167 nscp_cmndinfo->wait_for_completion++;
1da177e4 2168 else
b8bff2ae 2169 gdth_scsi_done(nscp);
1da177e4
LT		 2170 } else {
2171 switch (nscp->cmnd[0]) {
2172 case TEST_UNIT_READY:
2173 case INQUIRY:
2174 case REQUEST_SENSE:
2175 case READ_CAPACITY:
2176 case VERIFY:
2177 case START_STOP:
2178 case MODE_SENSE:
2179 case SERVICE_ACTION_IN:
2180 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2181 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2182 nscp->cmnd[4],nscp->cmnd[5]));
2183 if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) {
2184 /* return UNIT_ATTENTION */
2185 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2186 nscp->cmnd[0], t));
2187 ha->hdr[t].media_changed = FALSE;
2188 memset((char*)nscp->sense_buffer,0,16);
2189 nscp->sense_buffer[0] = 0x70;
2190 nscp->sense_buffer[2] = UNIT_ATTENTION;
2191 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
f842b64e
BH		 2192 if (!nscp_cmndinfo->wait_for_completion)
2193 nscp_cmndinfo->wait_for_completion++;
1da177e4 2194 else
b8bff2ae 2195 gdth_scsi_done(nscp);
45f1a41b 2196 } else if (gdth_internal_cache_cmd(ha, nscp))
b8bff2ae 2197 gdth_scsi_done(nscp);
1da177e4
LT		 2198 break;
2199
2200 case ALLOW_MEDIUM_REMOVAL:
2201 TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0],
2202 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2203 nscp->cmnd[4],nscp->cmnd[5]));
2204 if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) {
2205 TRACE(("Prevent r. nonremov. drive->do nothing\n"));
2206 nscp->result = DID_OK << 16;
2207 nscp->sense_buffer[0] = 0;
f842b64e
BH		 2208 if (!nscp_cmndinfo->wait_for_completion)
2209 nscp_cmndinfo->wait_for_completion++;
1da177e4 2210 else
b8bff2ae 2211 gdth_scsi_done(nscp);
1da177e4
LT		 2212 } else {
2213 nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0;
2214 TRACE(("Prevent/allow r. %d rem. drive %d\n",
2215 nscp->cmnd[4],nscp->cmnd[3]));
45f1a41b 2216 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
1da177e4
LT		 2217 this_cmd = FALSE;
2218 }
2219 break;
2220
2221 case RESERVE:
2222 case RELEASE:
2223 TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ?
2224 "RESERVE" : "RELEASE"));
45f1a41b 2225 if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
1da177e4
LT		 2226 this_cmd = FALSE;
2227 break;
2228
2229 case READ_6:
2230 case WRITE_6:
2231 case READ_10:
2232 case WRITE_10:
2233 case READ_16:
2234 case WRITE_16:
2235 if (ha->hdr[t].media_changed) {
2236 /* return UNIT_ATTENTION */
2237 TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n",
2238 nscp->cmnd[0], t));
2239 ha->hdr[t].media_changed = FALSE;
2240 memset((char*)nscp->sense_buffer,0,16);
2241 nscp->sense_buffer[0] = 0x70;
2242 nscp->sense_buffer[2] = UNIT_ATTENTION;
2243 nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
f842b64e
BH		 2244 if (!nscp_cmndinfo->wait_for_completion)
2245 nscp_cmndinfo->wait_for_completion++;
1da177e4 2246 else
b8bff2ae 2247 gdth_scsi_done(nscp);
45f1a41b 2248 } else if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t)))
1da177e4
LT		 2249 this_cmd = FALSE;
2250 break;
2251
2252 default:
2253 TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0],
2254 nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3],
2255 nscp->cmnd[4],nscp->cmnd[5]));
2256 printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n",
45f1a41b 2257 ha->hanum, nscp->cmnd[0]);
1da177e4 2258 nscp->result = DID_ABORT << 16;
f842b64e
BH		 2259 if (!nscp_cmndinfo->wait_for_completion)
2260 nscp_cmndinfo->wait_for_completion++;
1da177e4 2261 else
b8bff2ae 2262 gdth_scsi_done(nscp);
1da177e4
LT		 2263 break;
2264 }
2265 }
2266
2267 if (!this_cmd)
2268 break;
2269 if (nscp == ha->req_first)
2270 ha->req_first = pscp = (Scsi_Cmnd *)nscp->SCp.ptr;
2271 else
2272 pscp->SCp.ptr = nscp->SCp.ptr;
2273 if (!next_cmd)
2274 break;
2275 }
2276
2277 if (ha->cmd_cnt > 0) {
45f1a41b 2278 gdth_release_event(ha);
1da177e4
LT		 2279 }
2280
2281 if (!gdth_polling)
2282 spin_unlock_irqrestore(&ha->smp_lock, flags);
2283
2284 if (gdth_polling && ha->cmd_cnt > 0) {
45f1a41b 2285 if (!gdth_wait(ha, cmd_index, POLL_TIMEOUT))
1da177e4 2286 printk("GDT-HA %d: Command %d timed out !\n",
45f1a41b 2287 ha->hanum, cmd_index);
1da177e4
LT		 2288 }
2289}
3892d88a
BH		 2290
2291/*
2292 * gdth_copy_internal_data() - copy to/from a buffer onto a scsi_cmnd's
2293 * buffers, kmap_atomic() as needed.
2294 */
45f1a41b 2295static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
ee54cc6a 2296 char *buffer, ushort count)
1da177e4 2297{
d35055a0 2298 ushort cpcount,i, max_sg = scsi_sg_count(scp);
1da177e4
LT		 2299 ushort cpsum,cpnow;
2300 struct scatterlist *sl;
1da177e4
LT		 2301 char *address;
2302
d35055a0 2303 cpcount = min_t(ushort, count, scsi_bufflen(scp));
1da177e4 2304
3892d88a
BH		 2305 if (cpcount) {
2306 cpsum=0;
2307 scsi_for_each_sg(scp, sl, max_sg, i) {
cbd5f69b 2308 unsigned long flags;
1da177e4
LT		 2309 cpnow = (ushort)sl->length;
2310 TRACE(("copy_internal() now %d sum %d count %d %d\n",
d35055a0 2311 cpnow, cpsum, cpcount, scsi_bufflen(scp)));
1da177e4
LT		 2312 if (cpsum+cpnow > cpcount)
2313 cpnow = cpcount - cpsum;
2314 cpsum += cpnow;
45711f1a 2315 if (!sg_page(sl)) {
1da177e4 2316 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
45f1a41b 2317 ha->hanum);
1da177e4
LT		 2318 return;
2319 }
cbd5f69b 2320 local_irq_save(flags);
45711f1a 2321 address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
ee54cc6a 2322 memcpy(address, buffer, cpnow);
45711f1a 2323 flush_dcache_page(sg_page(sl));
cbd5f69b 2324 kunmap_atomic(address, KM_BIO_SRC_IRQ);
cbd5f69b 2325 local_irq_restore(flags);
1da177e4
LT		 2326 if (cpsum == cpcount)
2327 break;
2328 buffer += cpnow;
2329 }
3892d88a
BH		 2330 } else if (count) {
2331 printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n",
2332 ha->hanum);
2333 WARN_ON(1);
1da177e4
LT		 2334 }
2335}
2336
45f1a41b 2337static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
1da177e4 2338{
1da177e4
LT		 2339 unchar t;
2340 gdth_inq_data inq;
2341 gdth_rdcap_data rdc;
2342 gdth_sense_data sd;
2343 gdth_modep_data mpd;
f842b64e 2344 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1da177e4 2345
1da177e4
LT		 2346 t = scp->device->id;
2347 TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n",
2348 scp->cmnd[0],t));
2349
2350 scp->result = DID_OK << 16;
2351 scp->sense_buffer[0] = 0;
2352
2353 switch (scp->cmnd[0]) {
2354 case TEST_UNIT_READY:
2355 case VERIFY:
2356 case START_STOP:
2357 TRACE2(("Test/Verify/Start hdrive %d\n",t));
2358 break;
2359
2360 case INQUIRY:
2361 TRACE2(("Inquiry hdrive %d devtype %d\n",
2362 t,ha->hdr[t].devtype));
2363 inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK;
2364 /* you can here set all disks to removable, if you want to do
2365 a flush using the ALLOW_MEDIUM_REMOVAL command */
2366 inq.modif_rmb = 0x00;
2367 if ((ha->hdr[t].devtype & 1) ||
2368 (ha->hdr[t].cluster_type & CLUSTER_DRIVE))
2369 inq.modif_rmb = 0x80;
2370 inq.version = 2;
2371 inq.resp_aenc = 2;
2372 inq.add_length= 32;
2373 strcpy(inq.vendor,ha->oem_name);
2374 sprintf(inq.product,"Host Drive #%02d",t);
2375 strcpy(inq.revision," ");
ee54cc6a 2376 gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data));
1da177e4
LT		 2377 break;
2378
2379 case REQUEST_SENSE:
2380 TRACE2(("Request sense hdrive %d\n",t));
2381 sd.errorcode = 0x70;
2382 sd.segno = 0x00;
2383 sd.key = NO_SENSE;
2384 sd.info = 0;
2385 sd.add_length= 0;
ee54cc6a 2386 gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data));
1da177e4
LT		 2387 break;
2388
2389 case MODE_SENSE:
2390 TRACE2(("Mode sense hdrive %d\n",t));
2391 memset((char*)&mpd,0,sizeof(gdth_modep_data));
2392 mpd.hd.data_length = sizeof(gdth_modep_data);
2393 mpd.hd.dev_par = (ha->hdr[t].devtype&2) ? 0x80:0;
2394 mpd.hd.bd_length = sizeof(mpd.bd);
2395 mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16;
2396 mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8;
2397 mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff);
ee54cc6a 2398 gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data));
1da177e4
LT		 2399 break;
2400
2401 case READ_CAPACITY:
2402 TRACE2(("Read capacity hdrive %d\n",t));
2403 if (ha->hdr[t].size > (ulong64)0xffffffff)
2404 rdc.last_block_no = 0xffffffff;
2405 else
2406 rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1);
2407 rdc.block_length = cpu_to_be32(SECTOR_SIZE);
ee54cc6a 2408 gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data));
1da177e4
LT		 2409 break;
2410
2411 case SERVICE_ACTION_IN:
2412 if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 &&
2413 (ha->cache_feat & GDT_64BIT)) {
2414 gdth_rdcap16_data rdc16;
2415
2416 TRACE2(("Read capacity (16) hdrive %d\n",t));
2417 rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1);
2418 rdc16.block_length = cpu_to_be32(SECTOR_SIZE);
45f1a41b 2419 gdth_copy_internal_data(ha, scp, (char*)&rdc16,
ee54cc6a 2420 sizeof(gdth_rdcap16_data));
1da177e4
LT		 2421 } else {
2422 scp->result = DID_ABORT << 16;
2423 }
2424 break;
2425
2426 default:
2427 TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0]));
2428 break;
2429 }
2430
f842b64e
BH		 2431 if (!cmndinfo->wait_for_completion)
2432 cmndinfo->wait_for_completion++;
1da177e4
LT		 2433 else
2434 return 1;
2435
2436 return 0;
2437}
45f1a41b
BH		 2438
2439static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive)
1da177e4 2440{
1da177e4 2441 register gdth_cmd_str *cmdp;
f842b64e 2442 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1da177e4
LT		 2443 ulong32 cnt, blockcnt;
2444 ulong64 no, blockno;
1da177e4 2445 int i, cmd_index, read_write, sgcnt, mode64;
1da177e4 2446
1da177e4
LT		 2447 cmdp = ha->pccb;
2448 TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
2449 scp->cmnd[0],scp->cmd_len,hdrive));
2450
2451 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2452 return 0;
2453
2454 mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
2455 /* test for READ_16, WRITE_16 if !mode64 ? ---
2456 not required, should not occur due to error return on
2457 READ_CAPACITY_16 */
2458
2459 cmdp->Service = CACHESERVICE;
2460 cmdp->RequestBuffer = scp;
2461 /* search free command index */
45f1a41b 2462 if (!(cmd_index=gdth_get_cmd_index(ha))) {
1da177e4
LT		 2463 TRACE(("GDT: No free command index found\n"));
2464 return 0;
2465 }
2466 /* if it's the first command, set command semaphore */
2467 if (ha->cmd_cnt == 0)
45f1a41b 2468 gdth_set_sema0(ha);
1da177e4
LT		 2469
2470 /* fill command */
2471 read_write = 0;
f842b64e
BH		 2472 if (cmndinfo->OpCode != -1)
2473 cmdp->OpCode = cmndinfo->OpCode; /* special cache cmd. */
1da177e4
LT		 2474 else if (scp->cmnd[0] == RESERVE)
2475 cmdp->OpCode = GDT_RESERVE_DRV;
2476 else if (scp->cmnd[0] == RELEASE)
2477 cmdp->OpCode = GDT_RELEASE_DRV;
2478 else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
2479 if (scp->cmnd[4] & 1) /* prevent ? */
2480 cmdp->OpCode = GDT_MOUNT;
2481 else if (scp->cmnd[3] & 1) /* removable drive ? */
2482 cmdp->OpCode = GDT_UNMOUNT;
2483 else
2484 cmdp->OpCode = GDT_FLUSH;
2485 } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 ||
2486 scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16
2487 ) {
2488 read_write = 1;
2489 if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) &&
2490 (ha->cache_feat & GDT_WR_THROUGH)))
2491 cmdp->OpCode = GDT_WRITE_THR;
2492 else
2493 cmdp->OpCode = GDT_WRITE;
2494 } else {
2495 read_write = 2;
2496 cmdp->OpCode = GDT_READ;
2497 }
2498
2499 cmdp->BoardNode = LOCALBOARD;
2500 if (mode64) {
2501 cmdp->u.cache64.DeviceNo = hdrive;
2502 cmdp->u.cache64.BlockNo = 1;
2503 cmdp->u.cache64.sg_canz = 0;
2504 } else {
2505 cmdp->u.cache.DeviceNo = hdrive;
2506 cmdp->u.cache.BlockNo = 1;
2507 cmdp->u.cache.sg_canz = 0;
2508 }
2509
2510 if (read_write) {
2511 if (scp->cmd_len == 16) {
2512 memcpy(&no, &scp->cmnd[2], sizeof(ulong64));
2513 blockno = be64_to_cpu(no);
2514 memcpy(&cnt, &scp->cmnd[10], sizeof(ulong32));
2515 blockcnt = be32_to_cpu(cnt);
2516 } else if (scp->cmd_len == 10) {
2517 memcpy(&no, &scp->cmnd[2], sizeof(ulong32));
2518 blockno = be32_to_cpu(no);
2519 memcpy(&cnt, &scp->cmnd[7], sizeof(ushort));
2520 blockcnt = be16_to_cpu(cnt);
2521 } else {
2522 memcpy(&no, &scp->cmnd[0], sizeof(ulong32));
2523 blockno = be32_to_cpu(no) & 0x001fffffUL;
2524 blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4];
2525 }
2526 if (mode64) {
2527 cmdp->u.cache64.BlockNo = blockno;
2528 cmdp->u.cache64.BlockCnt = blockcnt;
2529 } else {
2530 cmdp->u.cache.BlockNo = (ulong32)blockno;
2531 cmdp->u.cache.BlockCnt = blockcnt;
2532 }
2533
d35055a0 2534 if (scsi_bufflen(scp)) {
f842b64e 2535 cmndinfo->dma_dir = (read_write == 1 ?
1da177e4 2536 PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
d35055a0 2537 sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
3892d88a 2538 cmndinfo->dma_dir);
1da177e4 2539 if (mode64) {
3892d88a
BH		 2540 struct scatterlist *sl;
2541
1da177e4
LT		 2542 cmdp->u.cache64.DestAddr= (ulong64)-1;
2543 cmdp->u.cache64.sg_canz = sgcnt;
3892d88a 2544 scsi_for_each_sg(scp, sl, sgcnt, i) {
1da177e4
LT		 2545 cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2546#ifdef GDTH_DMA_STATISTICS
2547 if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2548 ha->dma64_cnt++;
2549 else
2550 ha->dma32_cnt++;
2551#endif
2552 cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl);
2553 }
2554 } else {
3892d88a
BH		 2555 struct scatterlist *sl;
2556
1da177e4
LT		 2557 cmdp->u.cache.DestAddr= 0xffffffff;
2558 cmdp->u.cache.sg_canz = sgcnt;
3892d88a 2559 scsi_for_each_sg(scp, sl, sgcnt, i) {
1da177e4
LT		 2560 cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl);
2561#ifdef GDTH_DMA_STATISTICS
2562 ha->dma32_cnt++;
2563#endif
2564 cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl);
2565 }
2566 }
2567
2568#ifdef GDTH_STATISTICS
2569 if (max_sg < (ulong32)sgcnt) {
2570 max_sg = (ulong32)sgcnt;
2571 TRACE3(("GDT: max_sg = %d\n",max_sg));
2572 }
2573#endif
2574
1da177e4
LT		 2575 }
2576 }
2577 /* evaluate command size, check space */
2578 if (mode64) {
2579 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2580 cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz,
2581 cmdp->u.cache64.sg_lst[0].sg_ptr,
2582 cmdp->u.cache64.sg_lst[0].sg_len));
2583 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2584 cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt));
2585 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) +
2586 (ushort)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str);
2587 } else {
2588 TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2589 cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz,
2590 cmdp->u.cache.sg_lst[0].sg_ptr,
2591 cmdp->u.cache.sg_lst[0].sg_len));
2592 TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n",
2593 cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt));
2594 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) +
2595 (ushort)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str);
2596 }
2597 if (ha->cmd_len & 3)
2598 ha->cmd_len += (4 - (ha->cmd_len & 3));
2599
2600 if (ha->cmd_cnt > 0) {
2601 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2602 ha->ic_all_size) {
2603 TRACE2(("gdth_fill_cache() DPMEM overflow\n"));
2604 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2605 return 0;
2606 }
2607 }
2608
2609 /* copy command */
45f1a41b 2610 gdth_copy_command(ha);
1da177e4
LT		 2611 return cmd_index;
2612}
2613
45f1a41b 2614static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
1da177e4 2615{
1da177e4 2616 register gdth_cmd_str *cmdp;
1da177e4 2617 ushort i;
3892d88a 2618 dma_addr_t sense_paddr;
1da177e4
LT		 2619 int cmd_index, sgcnt, mode64;
2620 unchar t,l;
2621 struct page *page;
2622 ulong offset;
3058d5de 2623 struct gdth_cmndinfo *cmndinfo;
1da177e4 2624
1da177e4
LT		 2625 t = scp->device->id;
2626 l = scp->device->lun;
2627 cmdp = ha->pccb;
2628 TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
2629 scp->cmnd[0],b,t,l));
2630
2631 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2632 return 0;
2633
2634 mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
2635
2636 cmdp->Service = SCSIRAWSERVICE;
2637 cmdp->RequestBuffer = scp;
2638 /* search free command index */
45f1a41b 2639 if (!(cmd_index=gdth_get_cmd_index(ha))) {
1da177e4
LT		 2640 TRACE(("GDT: No free command index found\n"));
2641 return 0;
2642 }
2643 /* if it's the first command, set command semaphore */
2644 if (ha->cmd_cnt == 0)
45f1a41b 2645 gdth_set_sema0(ha);
1da177e4 2646
3058d5de 2647 cmndinfo = gdth_cmnd_priv(scp);
1da177e4 2648 /* fill command */
f842b64e
BH		 2649 if (cmndinfo->OpCode != -1) {
2650 cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */
1da177e4
LT		 2651 cmdp->BoardNode = LOCALBOARD;
2652 if (mode64) {
f842b64e 2653 cmdp->u.raw64.direction = (cmndinfo->phase >> 8);
1da177e4
LT		 2654 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2655 cmdp->OpCode, cmdp->u.raw64.direction));
2656 /* evaluate command size */
2657 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst);
2658 } else {
f842b64e 2659 cmdp->u.raw.direction = (cmndinfo->phase >> 8);
1da177e4
LT		 2660 TRACE2(("special raw cmd 0x%x param 0x%x\n",
2661 cmdp->OpCode, cmdp->u.raw.direction));
2662 /* evaluate command size */
2663 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst);
2664 }
2665
2666 } else {
2667 page = virt_to_page(scp->sense_buffer);
2668 offset = (ulong)scp->sense_buffer & ~PAGE_MASK;
2669 sense_paddr = pci_map_page(ha->pdev,page,offset,
2670 16,PCI_DMA_FROMDEVICE);
3058d5de
BH		 2671
2672 cmndinfo->sense_paddr = sense_paddr;
1da177e4
LT		 2673 cmdp->OpCode = GDT_WRITE; /* always */
2674 cmdp->BoardNode = LOCALBOARD;
2675 if (mode64) {
2676 cmdp->u.raw64.reserved = 0;
2677 cmdp->u.raw64.mdisc_time = 0;
2678 cmdp->u.raw64.mcon_time = 0;
2679 cmdp->u.raw64.clen = scp->cmd_len;
2680 cmdp->u.raw64.target = t;
2681 cmdp->u.raw64.lun = l;
2682 cmdp->u.raw64.bus = b;
2683 cmdp->u.raw64.priority = 0;
d35055a0 2684 cmdp->u.raw64.sdlen = scsi_bufflen(scp);
1da177e4
LT		 2685 cmdp->u.raw64.sense_len = 16;
2686 cmdp->u.raw64.sense_data = sense_paddr;
2687 cmdp->u.raw64.direction =
2688 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2689 memcpy(cmdp->u.raw64.cmd,scp->cmnd,16);
bb9ba31c 2690 cmdp->u.raw64.sg_ranz = 0;
1da177e4
LT		 2691 } else {
2692 cmdp->u.raw.reserved = 0;
2693 cmdp->u.raw.mdisc_time = 0;
2694 cmdp->u.raw.mcon_time = 0;
2695 cmdp->u.raw.clen = scp->cmd_len;
2696 cmdp->u.raw.target = t;
2697 cmdp->u.raw.lun = l;
2698 cmdp->u.raw.bus = b;
2699 cmdp->u.raw.priority = 0;
2700 cmdp->u.raw.link_p = 0;
d35055a0 2701 cmdp->u.raw.sdlen = scsi_bufflen(scp);
1da177e4
LT		 2702 cmdp->u.raw.sense_len = 16;
2703 cmdp->u.raw.sense_data = sense_paddr;
2704 cmdp->u.raw.direction =
2705 gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN;
2706 memcpy(cmdp->u.raw.cmd,scp->cmnd,12);
bb9ba31c 2707 cmdp->u.raw.sg_ranz = 0;
1da177e4
LT		 2708 }
2709
d35055a0 2710 if (scsi_bufflen(scp)) {
f842b64e 2711 cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
d35055a0 2712 sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
3892d88a 2713 cmndinfo->dma_dir);
1da177e4 2714 if (mode64) {
3892d88a
BH		 2715 struct scatterlist *sl;
2716
1da177e4
LT		 2717 cmdp->u.raw64.sdata = (ulong64)-1;
2718 cmdp->u.raw64.sg_ranz = sgcnt;
3892d88a 2719 scsi_for_each_sg(scp, sl, sgcnt, i) {
1da177e4
LT		 2720 cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl);
2721#ifdef GDTH_DMA_STATISTICS
2722 if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff)
2723 ha->dma64_cnt++;
2724 else
2725 ha->dma32_cnt++;
2726#endif
2727 cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl);
2728 }
2729 } else {
3892d88a
BH		 2730 struct scatterlist *sl;
2731
1da177e4
LT		 2732 cmdp->u.raw.sdata = 0xffffffff;
2733 cmdp->u.raw.sg_ranz = sgcnt;
3892d88a 2734 scsi_for_each_sg(scp, sl, sgcnt, i) {
1da177e4
LT		 2735 cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl);
2736#ifdef GDTH_DMA_STATISTICS
2737 ha->dma32_cnt++;
2738#endif
2739 cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl);
2740 }
2741 }
2742
2743#ifdef GDTH_STATISTICS
2744 if (max_sg < sgcnt) {
2745 max_sg = sgcnt;
2746 TRACE3(("GDT: max_sg = %d\n",sgcnt));
2747 }
2748#endif
2749
1da177e4
LT		 2750 }
2751 if (mode64) {
2752 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2753 cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz,
2754 cmdp->u.raw64.sg_lst[0].sg_ptr,
2755 cmdp->u.raw64.sg_lst[0].sg_len));
2756 /* evaluate command size */
2757 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) +
2758 (ushort)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str);
2759 } else {
2760 TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n",
2761 cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz,
2762 cmdp->u.raw.sg_lst[0].sg_ptr,
2763 cmdp->u.raw.sg_lst[0].sg_len));
2764 /* evaluate command size */
2765 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) +
2766 (ushort)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str);
2767 }
2768 }
2769 /* check space */
2770 if (ha->cmd_len & 3)
2771 ha->cmd_len += (4 - (ha->cmd_len & 3));
2772
2773 if (ha->cmd_cnt > 0) {
2774 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2775 ha->ic_all_size) {
2776 TRACE2(("gdth_fill_raw() DPMEM overflow\n"));
2777 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2778 return 0;
2779 }
2780 }
2781
2782 /* copy command */
45f1a41b 2783 gdth_copy_command(ha);
1da177e4
LT		 2784 return cmd_index;
2785}
2786
45f1a41b 2787static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp)
1da177e4 2788{
1da177e4 2789 register gdth_cmd_str *cmdp;
ee54cc6a 2790 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1da177e4
LT		 2791 int cmd_index;
2792
1da177e4
LT		 2793 cmdp= ha->pccb;
2794 TRACE2(("gdth_special_cmd(): "));
2795
2796 if (ha->type==GDT_EISA && ha->cmd_cnt>0)
2797 return 0;
2798
ee54cc6a 2799 *cmdp = *cmndinfo->internal_cmd_str;
1da177e4
LT		 2800 cmdp->RequestBuffer = scp;
2801
2802 /* search free command index */
45f1a41b 2803 if (!(cmd_index=gdth_get_cmd_index(ha))) {
1da177e4
LT		 2804 TRACE(("GDT: No free command index found\n"));
2805 return 0;
2806 }
2807
2808 /* if it's the first command, set command semaphore */
2809 if (ha->cmd_cnt == 0)
45f1a41b 2810 gdth_set_sema0(ha);
1da177e4
LT		 2811
2812 /* evaluate command size, check space */
2813 if (cmdp->OpCode == GDT_IOCTL) {
2814 TRACE2(("IOCTL\n"));
2815 ha->cmd_len =
2816 GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(ulong64);
2817 } else if (cmdp->Service == CACHESERVICE) {
2818 TRACE2(("cache command %d\n",cmdp->OpCode));
2819 if (ha->cache_feat & GDT_64BIT)
2820 ha->cmd_len =
2821 GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str);
2822 else
2823 ha->cmd_len =
2824 GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str);
2825 } else if (cmdp->Service == SCSIRAWSERVICE) {
2826 TRACE2(("raw command %d\n",cmdp->OpCode));
2827 if (ha->raw_feat & GDT_64BIT)
2828 ha->cmd_len =
2829 GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str);
2830 else
2831 ha->cmd_len =
2832 GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str);
2833 }
2834
2835 if (ha->cmd_len & 3)
2836 ha->cmd_len += (4 - (ha->cmd_len & 3));
2837
2838 if (ha->cmd_cnt > 0) {
2839 if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) >
2840 ha->ic_all_size) {
2841 TRACE2(("gdth_special_cmd() DPMEM overflow\n"));
2842 ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND;
2843 return 0;
2844 }
2845 }
2846
2847 /* copy command */
45f1a41b 2848 gdth_copy_command(ha);
1da177e4
LT		 2849 return cmd_index;
2850}
2851
2852
2853/* Controller event handling functions */
2854static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, ushort source,
2855 ushort idx, gdth_evt_data *evt)
2856{
2857 gdth_evt_str *e;
2858 struct timeval tv;
2859
2860 /* no GDTH_LOCK_HA() ! */
2861 TRACE2(("gdth_store_event() source %d idx %d\n", source, idx));
2862 if (source == 0) /* no source -> no event */
2863 return NULL;
2864
2865 if (ebuffer[elastidx].event_source == source &&
2866 ebuffer[elastidx].event_idx == idx &&
2867 ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
2868 !memcmp((char *)&ebuffer[elastidx].event_data.eu,
2869 (char *)&evt->eu, evt->size)) ||
2870 (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
2871 !strcmp((char *)&ebuffer[elastidx].event_data.event_string,
2872 (char *)&evt->event_string)))) {
2873 e = &ebuffer[elastidx];
2874 do_gettimeofday(&tv);
2875 e->last_stamp = tv.tv_sec;
2876 ++e->same_count;
2877 } else {
2878 if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
2879 ++elastidx;
2880 if (elastidx == MAX_EVENTS)
2881 elastidx = 0;
2882 if (elastidx == eoldidx) { /* reached mark ? */
2883 ++eoldidx;
2884 if (eoldidx == MAX_EVENTS)
2885 eoldidx = 0;
2886 }
2887 }
2888 e = &ebuffer[elastidx];
2889 e->event_source = source;
2890 e->event_idx = idx;
2891 do_gettimeofday(&tv);
2892 e->first_stamp = e->last_stamp = tv.tv_sec;
2893 e->same_count = 1;
2894 e->event_data = *evt;
2895 e->application = 0;
2896 }
2897 return e;
2898}
2899
2900static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr)
2901{
2902 gdth_evt_str *e;
2903 int eindex;
2904 ulong flags;
2905
2906 TRACE2(("gdth_read_event() handle %d\n", handle));
2907 spin_lock_irqsave(&ha->smp_lock, flags);
2908 if (handle == -1)
2909 eindex = eoldidx;
2910 else
2911 eindex = handle;
2912 estr->event_source = 0;
2913
2914 if (eindex >= MAX_EVENTS) {
2915 spin_unlock_irqrestore(&ha->smp_lock, flags);
2916 return eindex;
2917 }
2918 e = &ebuffer[eindex];
2919 if (e->event_source != 0) {
2920 if (eindex != elastidx) {
2921 if (++eindex == MAX_EVENTS)
2922 eindex = 0;
2923 } else {
2924 eindex = -1;
2925 }
2926 memcpy(estr, e, sizeof(gdth_evt_str));
2927 }
2928 spin_unlock_irqrestore(&ha->smp_lock, flags);
2929 return eindex;
2930}
2931
2932static void gdth_readapp_event(gdth_ha_str *ha,
2933 unchar application, gdth_evt_str *estr)
2934{
2935 gdth_evt_str *e;
2936 int eindex;
2937 ulong flags;
2938 unchar found = FALSE;
2939
2940 TRACE2(("gdth_readapp_event() app. %d\n", application));
2941 spin_lock_irqsave(&ha->smp_lock, flags);
2942 eindex = eoldidx;
2943 for (;;) {
2944 e = &ebuffer[eindex];
2945 if (e->event_source == 0)
2946 break;
2947 if ((e->application & application) == 0) {
2948 e->application |= application;
2949 found = TRUE;
2950 break;
2951 }
2952 if (eindex == elastidx)
2953 break;
2954 if (++eindex == MAX_EVENTS)
2955 eindex = 0;
2956 }
2957 if (found)
2958 memcpy(estr, e, sizeof(gdth_evt_str));
2959 else
2960 estr->event_source = 0;
2961 spin_unlock_irqrestore(&ha->smp_lock, flags);
2962}
2963
2964static void gdth_clear_events(void)
2965{
2966 TRACE(("gdth_clear_events()"));
2967
2968 eoldidx = elastidx = 0;
2969 ebuffer[0].event_source = 0;
2970}
2971
2972
2973/* SCSI interface functions */
2974
230e886e 2975static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
10e1b4bc 2976 int gdth_from_wait, int* pIndex)
1da177e4 2977{
1da177e4
LT		 2978 gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
2979 gdt6_dpram_str __iomem *dp6_ptr;
2980 gdt2_dpram_str __iomem *dp2_ptr;
2981 Scsi_Cmnd *scp;
10e1b4bc 2982 int rval, i;
1da177e4
LT		 2983 unchar IStatus;
2984 ushort Service;
2985 ulong flags = 0;
2986#ifdef INT_COAL
2987 int coalesced = FALSE;
2988 int next = FALSE;
2989 gdth_coal_status *pcs = NULL;
2990 int act_int_coal = 0;
2991#endif
2992
230e886e 2993 TRACE(("gdth_interrupt() IRQ %d\n", ha->irq));
1da177e4
LT		 2994
2995 /* if polling and not from gdth_wait() -> return */
2996 if (gdth_polling) {
2997 if (!gdth_from_wait) {
2998 return IRQ_HANDLED;
2999 }
3000 }
3001
3002 if (!gdth_polling)
10e1b4bc 3003 spin_lock_irqsave(&ha->smp_lock, flags);
1da177e4
LT		 3004
3005 /* search controller */
230e886e
JG		 3006 IStatus = gdth_get_status(ha);
3007 if (IStatus == 0) {
1da177e4
LT		 3008 /* spurious interrupt */
3009 if (!gdth_polling)
10e1b4bc
BH		 3010 spin_unlock_irqrestore(&ha->smp_lock, flags);
3011 return IRQ_HANDLED;
1da177e4 3012 }
1da177e4
LT		 3013
3014#ifdef GDTH_STATISTICS
3015 ++act_ints;
3016#endif
3017
3018#ifdef INT_COAL
3019 /* See if the fw is returning coalesced status */
3020 if (IStatus == COALINDEX) {
3021 /* Coalesced status. Setup the initial status
3022 buffer pointer and flags */
3023 pcs = ha->coal_stat;
3024 coalesced = TRUE;
3025 next = TRUE;
3026 }
3027
3028 do {
3029 if (coalesced) {
3030 /* For coalesced requests all status
3031 information is found in the status buffer */
3032 IStatus = (unchar)(pcs->status & 0xff);
3033 }
3034#endif
3035
3036 if (ha->type == GDT_EISA) {
3037 if (IStatus & 0x80) { /* error flag */
3038 IStatus &= ~0x80;
3039 ha->status = inw(ha->bmic + MAILBOXREG+8);
3040 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3041 } else /* no error */
3042 ha->status = S_OK;
3043 ha->info = inl(ha->bmic + MAILBOXREG+12);
3044 ha->service = inw(ha->bmic + MAILBOXREG+10);
3045 ha->info2 = inl(ha->bmic + MAILBOXREG+4);
3046
3047 outb(0xff, ha->bmic + EDOORREG); /* acknowledge interrupt */
3048 outb(0x00, ha->bmic + SEMA1REG); /* reset status semaphore */
3049 } else if (ha->type == GDT_ISA) {
3050 dp2_ptr = ha->brd;
3051 if (IStatus & 0x80) { /* error flag */
3052 IStatus &= ~0x80;
a52667f3 3053 ha->status = readw(&dp2_ptr->u.ic.Status);
1da177e4
LT		 3054 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3055 } else /* no error */
3056 ha->status = S_OK;
a52667f3
JG		 3057 ha->info = readl(&dp2_ptr->u.ic.Info[0]);
3058 ha->service = readw(&dp2_ptr->u.ic.Service);
3059 ha->info2 = readl(&dp2_ptr->u.ic.Info[1]);
1da177e4 3060
a52667f3
JG		 3061 writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
3062 writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
3063 writeb(0, &dp2_ptr->io.Sema1); /* reset status semaphore */
1da177e4
LT		 3064 } else if (ha->type == GDT_PCI) {
3065 dp6_ptr = ha->brd;
3066 if (IStatus & 0x80) { /* error flag */
3067 IStatus &= ~0x80;
a52667f3 3068 ha->status = readw(&dp6_ptr->u.ic.Status);
1da177e4
LT		 3069 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3070 } else /* no error */
3071 ha->status = S_OK;
a52667f3
JG		 3072 ha->info = readl(&dp6_ptr->u.ic.Info[0]);
3073 ha->service = readw(&dp6_ptr->u.ic.Service);
3074 ha->info2 = readl(&dp6_ptr->u.ic.Info[1]);
1da177e4 3075
a52667f3
JG		 3076 writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */
3077 writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */
3078 writeb(0, &dp6_ptr->io.Sema1); /* reset status semaphore */
1da177e4
LT		 3079 } else if (ha->type == GDT_PCINEW) {
3080 if (IStatus & 0x80) { /* error flag */
3081 IStatus &= ~0x80;
3082 ha->status = inw(PTR2USHORT(&ha->plx->status));
3083 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3084 } else
3085 ha->status = S_OK;
3086 ha->info = inl(PTR2USHORT(&ha->plx->info[0]));
3087 ha->service = inw(PTR2USHORT(&ha->plx->service));
3088 ha->info2 = inl(PTR2USHORT(&ha->plx->info[1]));
3089
3090 outb(0xff, PTR2USHORT(&ha->plx->edoor_reg));
3091 outb(0x00, PTR2USHORT(&ha->plx->sema1_reg));
3092 } else if (ha->type == GDT_PCIMPR) {
3093 dp6m_ptr = ha->brd;
3094 if (IStatus & 0x80) { /* error flag */
3095 IStatus &= ~0x80;
3096#ifdef INT_COAL
3097 if (coalesced)
107e716b 3098 ha->status = pcs->ext_status & 0xffff;
1da177e4
LT		 3099 else
3100#endif
a52667f3 3101 ha->status = readw(&dp6m_ptr->i960r.status);
1da177e4
LT		 3102 TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
3103 } else /* no error */
3104 ha->status = S_OK;
3105#ifdef INT_COAL
3106 /* get information */
3107 if (coalesced) {
3108 ha->info = pcs->info0;
3109 ha->info2 = pcs->info1;
107e716b 3110 ha->service = (pcs->ext_status >> 16) & 0xffff;
1da177e4
LT		 3111 } else
3112#endif
3113 {
a52667f3
JG		 3114 ha->info = readl(&dp6m_ptr->i960r.info[0]);
3115 ha->service = readw(&dp6m_ptr->i960r.service);
3116 ha->info2 = readl(&dp6m_ptr->i960r.info[1]);
1da177e4
LT		 3117 }
3118 /* event string */
3119 if (IStatus == ASYNCINDEX) {
3120 if (ha->service != SCREENSERVICE &&
3121 (ha->fw_vers & 0xff) >= 0x1a) {
a52667f3 3122 ha->dvr.severity = readb
1da177e4
LT		 3123 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity);
3124 for (i = 0; i < 256; ++i) {
a52667f3 3125 ha->dvr.event_string[i] = readb
1da177e4
LT		 3126 (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]);
3127 if (ha->dvr.event_string[i] == 0)
3128 break;
3129 }
3130 }
3131 }
3132#ifdef INT_COAL
3133 /* Make sure that non coalesced interrupts get cleared
3134 before being handled by gdth_async_event/gdth_sync_event */
3135 if (!coalesced)
3136#endif
3137 {
a52667f3
JG		 3138 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3139 writeb(0, &dp6m_ptr->i960r.sema1_reg);
1da177e4
LT		 3140 }
3141 } else {
3142 TRACE2(("gdth_interrupt() unknown controller type\n"));
3143 if (!gdth_polling)
10e1b4bc 3144 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4
LT		 3145 return IRQ_HANDLED;
3146 }
3147
3148 TRACE(("gdth_interrupt() index %d stat %d info %d\n",
3149 IStatus,ha->status,ha->info));
3150
3151 if (gdth_from_wait) {
10e1b4bc 3152 *pIndex = (int)IStatus;
1da177e4
LT		 3153 }
3154
3155 if (IStatus == ASYNCINDEX) {
3156 TRACE2(("gdth_interrupt() async. event\n"));
45f1a41b 3157 gdth_async_event(ha);
1da177e4 3158 if (!gdth_polling)
10e1b4bc 3159 spin_unlock_irqrestore(&ha->smp_lock, flags);
45f1a41b 3160 gdth_next(ha);
1da177e4
LT		 3161 return IRQ_HANDLED;
3162 }
3163
3164 if (IStatus == SPEZINDEX) {
3165 TRACE2(("Service unknown or not initialized !\n"));
3166 ha->dvr.size = sizeof(ha->dvr.eu.driver);
10e1b4bc 3167 ha->dvr.eu.driver.ionode = ha->hanum;
1da177e4
LT		 3168 gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr);
3169 if (!gdth_polling)
10e1b4bc 3170 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4
LT		 3171 return IRQ_HANDLED;
3172 }
3173 scp = ha->cmd_tab[IStatus-2].cmnd;
3174 Service = ha->cmd_tab[IStatus-2].service;
3175 ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND;
3176 if (scp == UNUSED_CMND) {
3177 TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus));
3178 ha->dvr.size = sizeof(ha->dvr.eu.driver);
10e1b4bc 3179 ha->dvr.eu.driver.ionode = ha->hanum;
1da177e4
LT		 3180 ha->dvr.eu.driver.index = IStatus;
3181 gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr);
3182 if (!gdth_polling)
10e1b4bc 3183 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4
LT		 3184 return IRQ_HANDLED;
3185 }
3186 if (scp == INTERNAL_CMND) {
3187 TRACE(("gdth_interrupt() answer to internal command\n"));
3188 if (!gdth_polling)
10e1b4bc 3189 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4
LT		 3190 return IRQ_HANDLED;
3191 }
3192
3193 TRACE(("gdth_interrupt() sync. status\n"));
45f1a41b 3194 rval = gdth_sync_event(ha,Service,IStatus,scp);
1da177e4 3195 if (!gdth_polling)
10e1b4bc 3196 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4 3197 if (rval == 2) {
f842b64e 3198 gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority);
1da177e4 3199 } else if (rval == 1) {
b8bff2ae 3200 gdth_scsi_done(scp);
1da177e4
LT		 3201 }
3202
3203#ifdef INT_COAL
3204 if (coalesced) {
3205 /* go to the next status in the status buffer */
3206 ++pcs;
3207#ifdef GDTH_STATISTICS
3208 ++act_int_coal;
3209 if (act_int_coal > max_int_coal) {
3210 max_int_coal = act_int_coal;
3211 printk("GDT: max_int_coal = %d\n",(ushort)max_int_coal);
3212 }
3213#endif
3214 /* see if there is another status */
3215 if (pcs->status == 0)
3216 /* Stop the coalesce loop */
3217 next = FALSE;
3218 }
3219 } while (next);
3220
3221 /* coalescing only for new GDT_PCIMPR controllers available */
3222 if (ha->type == GDT_PCIMPR && coalesced) {
a52667f3
JG		 3223 writeb(0xff, &dp6m_ptr->i960r.edoor_reg);
3224 writeb(0, &dp6m_ptr->i960r.sema1_reg);
1da177e4
LT		 3225 }
3226#endif
3227
45f1a41b 3228 gdth_next(ha);
1da177e4
LT		 3229 return IRQ_HANDLED;
3230}
3231
10e1b4bc
BH		 3232static irqreturn_t gdth_interrupt(int irq, void *dev_id)
3233{
230e886e 3234 gdth_ha_str *ha = dev_id;
10e1b4bc 3235
230e886e 3236 return __gdth_interrupt(ha, false, NULL);
10e1b4bc
BH		 3237}
3238
45f1a41b
BH		 3239static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
3240 Scsi_Cmnd *scp)
1da177e4 3241{
1da177e4
LT		 3242 gdth_msg_str *msg;
3243 gdth_cmd_str *cmdp;
3244 unchar b, t;
3058d5de 3245 struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp);
1da177e4 3246
1da177e4
LT		 3247 cmdp = ha->pccb;
3248 TRACE(("gdth_sync_event() serv %d status %d\n",
3249 service,ha->status));
3250
3251 if (service == SCREENSERVICE) {
3252 msg = ha->pmsg;
3253 TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n",
3254 msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen));
3255 if (msg->msg_len > MSGLEN+1)
3256 msg->msg_len = MSGLEN+1;
3257 if (msg->msg_len)
3258 if (!(msg->msg_answer && msg->msg_ext)) {
3259 msg->msg_text[msg->msg_len] = '\0';
3260 printk("%s",msg->msg_text);
3261 }
3262
3263 if (msg->msg_ext && !msg->msg_answer) {
45f1a41b 3264 while (gdth_test_busy(ha))
1da177e4
LT		 3265 gdth_delay(0);
3266 cmdp->Service = SCREENSERVICE;
3267 cmdp->RequestBuffer = SCREEN_CMND;
45f1a41b
BH		 3268 gdth_get_cmd_index(ha);
3269 gdth_set_sema0(ha);
1da177e4
LT		 3270 cmdp->OpCode = GDT_READ;
3271 cmdp->BoardNode = LOCALBOARD;
3272 cmdp->u.screen.reserved = 0;
3273 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3274 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3275 ha->cmd_offs_dpmem = 0;
3276 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3277 + sizeof(ulong64);
3278 ha->cmd_cnt = 0;
45f1a41b
BH		 3279 gdth_copy_command(ha);
3280 gdth_release_event(ha);
1da177e4
LT		 3281 return 0;
3282 }
3283
3284 if (msg->msg_answer && msg->msg_alen) {
3285 /* default answers (getchar() not possible) */
3286 if (msg->msg_alen == 1) {
3287 msg->msg_alen = 0;
3288 msg->msg_len = 1;
3289 msg->msg_text[0] = 0;
3290 } else {
3291 msg->msg_alen -= 2;
3292 msg->msg_len = 2;
3293 msg->msg_text[0] = 1;
3294 msg->msg_text[1] = 0;
3295 }
3296 msg->msg_ext = 0;
3297 msg->msg_answer = 0;
45f1a41b 3298 while (gdth_test_busy(ha))
1da177e4
LT		 3299 gdth_delay(0);
3300 cmdp->Service = SCREENSERVICE;
3301 cmdp->RequestBuffer = SCREEN_CMND;
45f1a41b
BH		 3302 gdth_get_cmd_index(ha);
3303 gdth_set_sema0(ha);
1da177e4
LT		 3304 cmdp->OpCode = GDT_WRITE;
3305 cmdp->BoardNode = LOCALBOARD;
3306 cmdp->u.screen.reserved = 0;
3307 cmdp->u.screen.su.msg.msg_handle= msg->msg_handle;
3308 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3309 ha->cmd_offs_dpmem = 0;
3310 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3311 + sizeof(ulong64);
3312 ha->cmd_cnt = 0;
45f1a41b
BH		 3313 gdth_copy_command(ha);
3314 gdth_release_event(ha);
1da177e4
LT		 3315 return 0;
3316 }
3317 printk("\n");
3318
3319 } else {
52759e6a 3320 b = scp->device->channel;
1da177e4 3321 t = scp->device->id;
f842b64e 3322 if (cmndinfo->OpCode == -1 && b != ha->virt_bus) {
1da177e4
LT		 3323 ha->raw[BUS_L2P(ha,b)].io_cnt[t]--;
3324 }
3325 /* cache or raw service */
3326 if (ha->status == S_BSY) {
3327 TRACE2(("Controller busy -> retry !\n"));
f842b64e
BH		 3328 if (cmndinfo->OpCode == GDT_MOUNT)
3329 cmndinfo->OpCode = GDT_CLUST_INFO;
1da177e4
LT		 3330 /* retry */
3331 return 2;
3332 }
d35055a0
BH		 3333 if (scsi_bufflen(scp))
3334 pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
3892d88a
BH		 3335 cmndinfo->dma_dir);
3336
3058d5de
BH		 3337 if (cmndinfo->sense_paddr)
3338 pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16,
3339 PCI_DMA_FROMDEVICE);
1da177e4
LT		 3340
3341 if (ha->status == S_OK) {
f842b64e
BH		 3342 cmndinfo->status = S_OK;
3343 cmndinfo->info = ha->info;
3344 if (cmndinfo->OpCode != -1) {
1da177e4 3345 TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n",
f842b64e 3346 cmndinfo->OpCode));
1da177e4 3347 /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */
f842b64e 3348 if (cmndinfo->OpCode == GDT_CLUST_INFO) {
1da177e4
LT		 3349 ha->hdr[t].cluster_type = (unchar)ha->info;
3350 if (!(ha->hdr[t].cluster_type &
3351 CLUSTER_MOUNTED)) {
3352 /* NOT MOUNTED -> MOUNT */
f842b64e 3353 cmndinfo->OpCode = GDT_MOUNT;
1da177e4
LT		 3354 if (ha->hdr[t].cluster_type &
3355 CLUSTER_RESERVED) {
3356 /* cluster drive RESERVED (on the other node) */
f842b64e 3357 cmndinfo->phase = -2; /* reservation conflict */
1da177e4
LT		 3358 }
3359 } else {
f842b64e 3360 cmndinfo->OpCode = -1;
1da177e4
LT		 3361 }
3362 } else {
f842b64e 3363 if (cmndinfo->OpCode == GDT_MOUNT) {
1da177e4
LT		 3364 ha->hdr[t].cluster_type |= CLUSTER_MOUNTED;
3365 ha->hdr[t].media_changed = TRUE;
f842b64e 3366 } else if (cmndinfo->OpCode == GDT_UNMOUNT) {
1da177e4
LT		 3367 ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED;
3368 ha->hdr[t].media_changed = TRUE;
3369 }
f842b64e 3370 cmndinfo->OpCode = -1;
1da177e4
LT		 3371 }
3372 /* retry */
f842b64e 3373 cmndinfo->priority = HIGH_PRI;
1da177e4
LT		 3374 return 2;
3375 } else {
3376 /* RESERVE/RELEASE ? */
3377 if (scp->cmnd[0] == RESERVE) {
3378 ha->hdr[t].cluster_type |= CLUSTER_RESERVED;
3379 } else if (scp->cmnd[0] == RELEASE) {
3380 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3381 }
3382 scp->result = DID_OK << 16;
3383 scp->sense_buffer[0] = 0;
3384 }
3385 } else {
f842b64e
BH		 3386 cmndinfo->status = ha->status;
3387 cmndinfo->info = ha->info;
1da177e4 3388
f842b64e 3389 if (cmndinfo->OpCode != -1) {
1da177e4 3390 TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n",
f842b64e
BH		 3391 cmndinfo->OpCode, ha->status));
3392 if (cmndinfo->OpCode == GDT_SCAN_START ||
3393 cmndinfo->OpCode == GDT_SCAN_END) {
3394 cmndinfo->OpCode = -1;
1da177e4 3395 /* retry */
f842b64e 3396 cmndinfo->priority = HIGH_PRI;
1da177e4
LT		 3397 return 2;
3398 }
3399 memset((char*)scp->sense_buffer,0,16);
3400 scp->sense_buffer[0] = 0x70;
3401 scp->sense_buffer[2] = NOT_READY;
3402 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3403 } else if (service == CACHESERVICE) {
3404 if (ha->status == S_CACHE_UNKNOWN &&
3405 (ha->hdr[t].cluster_type &
3406 CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) {
3407 /* bus reset -> force GDT_CLUST_INFO */
3408 ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED;
3409 }
3410 memset((char*)scp->sense_buffer,0,16);
3411 if (ha->status == (ushort)S_CACHE_RESERV) {
3412 scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1);
3413 } else {
3414 scp->sense_buffer[0] = 0x70;
3415 scp->sense_buffer[2] = NOT_READY;
3416 scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
3417 }
3058d5de 3418 if (!cmndinfo->internal_command) {
1da177e4 3419 ha->dvr.size = sizeof(ha->dvr.eu.sync);
45f1a41b 3420 ha->dvr.eu.sync.ionode = ha->hanum;
1da177e4
LT		 3421 ha->dvr.eu.sync.service = service;
3422 ha->dvr.eu.sync.status = ha->status;
3423 ha->dvr.eu.sync.info = ha->info;
3424 ha->dvr.eu.sync.hostdrive = t;
3425 if (ha->status >= 0x8000)
3426 gdth_store_event(ha, ES_SYNC, 0, &ha->dvr);
3427 else
3428 gdth_store_event(ha, ES_SYNC, service, &ha->dvr);
3429 }
3430 } else {
3431 /* sense buffer filled from controller firmware (DMA) */
3432 if (ha->status != S_RAW_SCSI || ha->info >= 0x100) {
3433 scp->result = DID_BAD_TARGET << 16;
3434 } else {
3435 scp->result = (DID_OK << 16) | ha->info;
3436 }
3437 }
3438 }
f842b64e
BH		 3439 if (!cmndinfo->wait_for_completion)
3440 cmndinfo->wait_for_completion++;
1da177e4
LT		 3441 else
3442 return 1;
3443 }
3444
3445 return 0;
3446}
3447
3448static char *async_cache_tab[] = {
3449/* 0*/ "\011\000\002\002\002\004\002\006\004"
3450 "GDT HA %u, service %u, async. status %u/%lu unknown",
3451/* 1*/ "\011\000\002\002\002\004\002\006\004"
3452 "GDT HA %u, service %u, async. status %u/%lu unknown",
3453/* 2*/ "\005\000\002\006\004"
3454 "GDT HA %u, Host Drive %lu not ready",
3455/* 3*/ "\005\000\002\006\004"
3456 "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",
3457/* 4*/ "\005\000\002\006\004"
3458 "GDT HA %u, mirror update on Host Drive %lu failed",
3459/* 5*/ "\005\000\002\006\004"
3460 "GDT HA %u, Mirror Drive %lu failed",
3461/* 6*/ "\005\000\002\006\004"
3462 "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",
3463/* 7*/ "\005\000\002\006\004"
3464 "GDT HA %u, Host Drive %lu write protected",
3465/* 8*/ "\005\000\002\006\004"
3466 "GDT HA %u, media changed in Host Drive %lu",
3467/* 9*/ "\005\000\002\006\004"
3468 "GDT HA %u, Host Drive %lu is offline",
3469/*10*/ "\005\000\002\006\004"
3470 "GDT HA %u, media change of Mirror Drive %lu",
3471/*11*/ "\005\000\002\006\004"
3472 "GDT HA %u, Mirror Drive %lu is write protected",
3473/*12*/ "\005\000\002\006\004"
3474 "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!",
3475/*13*/ "\007\000\002\006\002\010\002"
3476 "GDT HA %u, Array Drive %u: Cache Drive %u failed",
3477/*14*/ "\005\000\002\006\002"
3478 "GDT HA %u, Array Drive %u: FAIL state entered",
3479/*15*/ "\005\000\002\006\002"
3480 "GDT HA %u, Array Drive %u: error",
3481/*16*/ "\007\000\002\006\002\010\002"
3482 "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u",
3483/*17*/ "\005\000\002\006\002"
3484 "GDT HA %u, Array Drive %u: parity build failed",
3485/*18*/ "\005\000\002\006\002"
3486 "GDT HA %u, Array Drive %u: drive rebuild failed",
3487/*19*/ "\005\000\002\010\002"
3488 "GDT HA %u, Test of Hot Fix %u failed",
3489/*20*/ "\005\000\002\006\002"
3490 "GDT HA %u, Array Drive %u: drive build finished successfully",
3491/*21*/ "\005\000\002\006\002"
3492 "GDT HA %u, Array Drive %u: drive rebuild finished successfully",
3493/*22*/ "\007\000\002\006\002\010\002"
3494 "GDT HA %u, Array Drive %u: Hot Fix %u activated",
3495/*23*/ "\005\000\002\006\002"
3496 "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error",
3497/*24*/ "\005\000\002\010\002"
3498 "GDT HA %u, mirror update on Cache Drive %u completed",
3499/*25*/ "\005\000\002\010\002"
3500 "GDT HA %u, mirror update on Cache Drive %lu failed",
3501/*26*/ "\005\000\002\006\002"
3502 "GDT HA %u, Array Drive %u: drive rebuild started",
3503/*27*/ "\005\000\002\012\001"
3504 "GDT HA %u, Fault bus %u: SHELF OK detected",
3505/*28*/ "\005\000\002\012\001"
3506 "GDT HA %u, Fault bus %u: SHELF not OK detected",
3507/*29*/ "\007\000\002\012\001\013\001"
3508 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started",
3509/*30*/ "\007\000\002\012\001\013\001"
3510 "GDT HA %u, Fault bus %u, ID %u: new disk detected",
3511/*31*/ "\007\000\002\012\001\013\001"
3512 "GDT HA %u, Fault bus %u, ID %u: old disk detected",
3513/*32*/ "\007\000\002\012\001\013\001"
3514 "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid",
3515/*33*/ "\007\000\002\012\001\013\001"
3516 "GDT HA %u, Fault bus %u, ID %u: invalid device detected",
3517/*34*/ "\011\000\002\012\001\013\001\006\004"
3518 "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)",
3519/*35*/ "\007\000\002\012\001\013\001"
3520 "GDT HA %u, Fault bus %u, ID %u: disk write protected",
3521/*36*/ "\007\000\002\012\001\013\001"
3522 "GDT HA %u, Fault bus %u, ID %u: disk not available",
3523/*37*/ "\007\000\002\012\001\006\004"
3524 "GDT HA %u, Fault bus %u: swap detected (%lu)",
3525/*38*/ "\007\000\002\012\001\013\001"
3526 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully",
3527/*39*/ "\007\000\002\012\001\013\001"
3528 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug",
3529/*40*/ "\007\000\002\012\001\013\001"
3530 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted",
3531/*41*/ "\007\000\002\012\001\013\001"
3532 "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started",
3533/*42*/ "\005\000\002\006\002"
3534 "GDT HA %u, Array Drive %u: drive build started",
3535/*43*/ "\003\000\002"
3536 "GDT HA %u, DRAM parity error detected",
3537/*44*/ "\005\000\002\006\002"
3538 "GDT HA %u, Mirror Drive %u: update started",
3539/*45*/ "\007\000\002\006\002\010\002"
3540 "GDT HA %u, Mirror Drive %u: Hot Fix %u activated",
3541/*46*/ "\005\000\002\006\002"
3542 "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available",
3543/*47*/ "\005\000\002\006\002"
3544 "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available",
3545/*48*/ "\005\000\002\006\002"
3546 "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available",
3547/*49*/ "\005\000\002\006\002"
3548 "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available",
3549/*50*/ "\007\000\002\012\001\013\001"
3550 "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received",
3551/*51*/ "\005\000\002\006\002"
3552 "GDT HA %u, Array Drive %u: expand started",
3553/*52*/ "\005\000\002\006\002"
3554 "GDT HA %u, Array Drive %u: expand finished successfully",
3555/*53*/ "\005\000\002\006\002"
3556 "GDT HA %u, Array Drive %u: expand failed",
3557/*54*/ "\003\000\002"
3558 "GDT HA %u, CPU temperature critical",
3559/*55*/ "\003\000\002"
3560 "GDT HA %u, CPU temperature OK",
3561/*56*/ "\005\000\002\006\004"
3562 "GDT HA %u, Host drive %lu created",
3563/*57*/ "\005\000\002\006\002"
3564 "GDT HA %u, Array Drive %u: expand restarted",
3565/*58*/ "\005\000\002\006\002"
3566 "GDT HA %u, Array Drive %u: expand stopped",
3567/*59*/ "\005\000\002\010\002"
3568 "GDT HA %u, Mirror Drive %u: drive build quited",
3569/*60*/ "\005\000\002\006\002"
3570 "GDT HA %u, Array Drive %u: parity build quited",
3571/*61*/ "\005\000\002\006\002"
3572 "GDT HA %u, Array Drive %u: drive rebuild quited",
3573/*62*/ "\005\000\002\006\002"
3574 "GDT HA %u, Array Drive %u: parity verify started",
3575/*63*/ "\005\000\002\006\002"
3576 "GDT HA %u, Array Drive %u: parity verify done",
3577/*64*/ "\005\000\002\006\002"
3578 "GDT HA %u, Array Drive %u: parity verify failed",
3579/*65*/ "\005\000\002\006\002"
3580 "GDT HA %u, Array Drive %u: parity error detected",
3581/*66*/ "\005\000\002\006\002"
3582 "GDT HA %u, Array Drive %u: parity verify quited",
3583/*67*/ "\005\000\002\006\002"
3584 "GDT HA %u, Host Drive %u reserved",
3585/*68*/ "\005\000\002\006\002"
3586 "GDT HA %u, Host Drive %u mounted and released",
3587/*69*/ "\005\000\002\006\002"
3588 "GDT HA %u, Host Drive %u released",
3589/*70*/ "\003\000\002"
3590 "GDT HA %u, DRAM error detected and corrected with ECC",
3591/*71*/ "\003\000\002"
3592 "GDT HA %u, Uncorrectable DRAM error detected with ECC",
3593/*72*/ "\011\000\002\012\001\013\001\014\001"
3594 "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block",
3595/*73*/ "\005\000\002\006\002"
3596 "GDT HA %u, Host drive %u resetted locally",
3597/*74*/ "\005\000\002\006\002"
3598 "GDT HA %u, Host drive %u resetted remotely",
3599/*75*/ "\003\000\002"
3600 "GDT HA %u, async. status 75 unknown",
3601};
3602
3603
45f1a41b 3604static int gdth_async_event(gdth_ha_str *ha)
1da177e4 3605{
1da177e4
LT		 3606 gdth_cmd_str *cmdp;
3607 int cmd_index;
3608
1da177e4
LT		 3609 cmdp= ha->pccb;
3610 TRACE2(("gdth_async_event() ha %d serv %d\n",
45f1a41b 3611 ha->hanum, ha->service));
1da177e4
LT		 3612
3613 if (ha->service == SCREENSERVICE) {
3614 if (ha->status == MSG_REQUEST) {
45f1a41b 3615 while (gdth_test_busy(ha))
1da177e4
LT		 3616 gdth_delay(0);
3617 cmdp->Service = SCREENSERVICE;
3618 cmdp->RequestBuffer = SCREEN_CMND;
45f1a41b
BH		 3619 cmd_index = gdth_get_cmd_index(ha);
3620 gdth_set_sema0(ha);
1da177e4
LT		 3621 cmdp->OpCode = GDT_READ;
3622 cmdp->BoardNode = LOCALBOARD;
3623 cmdp->u.screen.reserved = 0;
3624 cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE;
3625 cmdp->u.screen.su.msg.msg_addr = ha->msg_phys;
3626 ha->cmd_offs_dpmem = 0;
3627 ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr)
3628 + sizeof(ulong64);
3629 ha->cmd_cnt = 0;
45f1a41b 3630 gdth_copy_command(ha);
1da177e4
LT		 3631 if (ha->type == GDT_EISA)
3632 printk("[EISA slot %d] ",(ushort)ha->brd_phys);
3633 else if (ha->type == GDT_ISA)
3634 printk("[DPMEM 0x%4X] ",(ushort)ha->brd_phys);
3635 else
3636 printk("[PCI %d/%d] ",(ushort)(ha->brd_phys>>8),
3637 (ushort)((ha->brd_phys>>3)&0x1f));
45f1a41b 3638 gdth_release_event(ha);
1da177e4
LT		 3639 }
3640
3641 } else {
3642 if (ha->type == GDT_PCIMPR &&
3643 (ha->fw_vers & 0xff) >= 0x1a) {
3644 ha->dvr.size = 0;
45f1a41b 3645 ha->dvr.eu.async.ionode = ha->hanum;
1da177e4
LT		 3646 ha->dvr.eu.async.status = ha->status;
3647 /* severity and event_string already set! */
3648 } else {
3649 ha->dvr.size = sizeof(ha->dvr.eu.async);
45f1a41b 3650 ha->dvr.eu.async.ionode = ha->hanum;
1da177e4
LT		 3651 ha->dvr.eu.async.service = ha->service;
3652 ha->dvr.eu.async.status = ha->status;
3653 ha->dvr.eu.async.info = ha->info;
3654 *(ulong32 *)ha->dvr.eu.async.scsi_coord = ha->info2;
3655 }
3656 gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr );
3657 gdth_log_event( &ha->dvr, NULL );
3658
3659 /* new host drive from expand? */
3660 if (ha->service == CACHESERVICE && ha->status == 56) {
3661 TRACE2(("gdth_async_event(): new host drive %d created\n",
3662 (ushort)ha->info));
3663 /* gdth_analyse_hdrive(hanum, (ushort)ha->info); */
3664 }
3665 }
3666 return 1;
3667}
3668
3669static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
3670{
3671 gdth_stackframe stack;
3672 char *f = NULL;
3673 int i,j;
3674
3675 TRACE2(("gdth_log_event()\n"));
3676 if (dvr->size == 0) {
3677 if (buffer == NULL) {
3678 printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string);
3679 } else {
3680 sprintf(buffer,"Adapter %d: %s\n",
3681 dvr->eu.async.ionode,dvr->event_string);
3682 }
3683 } else if (dvr->eu.async.service == CACHESERVICE &&
3684 INDEX_OK(dvr->eu.async.status, async_cache_tab)) {
3685 TRACE2(("GDT: Async. event cache service, event no.: %d\n",
3686 dvr->eu.async.status));
3687
3688 f = async_cache_tab[dvr->eu.async.status];
3689
3690 /* i: parameter to push, j: stack element to fill */
3691 for (j=0,i=1; i < f[0]; i+=2) {
3692 switch (f[i+1]) {
3693 case 4:
3694 stack.b[j++] = *(ulong32*)&dvr->eu.stream[(int)f[i]];
3695 break;
3696 case 2:
3697 stack.b[j++] = *(ushort*)&dvr->eu.stream[(int)f[i]];
3698 break;
3699 case 1:
3700 stack.b[j++] = *(unchar*)&dvr->eu.stream[(int)f[i]];
3701 break;
3702 default:
3703 break;
3704 }
3705 }
3706
3707 if (buffer == NULL) {
3708 printk(&f[(int)f[0]],stack);
3709 printk("\n");
3710 } else {
3711 sprintf(buffer,&f[(int)f[0]],stack);
3712 }
3713
3714 } else {
3715 if (buffer == NULL) {
3716 printk("GDT HA %u, Unknown async. event service %d event no. %d\n",
3717 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3718 } else {
3719 sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d",
3720 dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status);
3721 }
3722 }
3723}
3724
3725#ifdef GDTH_STATISTICS
2d6f0d0c
JB		 3726static unchar gdth_timer_running;
3727
8e879041 3728static void gdth_timeout(ulong data)
1da177e4
LT		 3729{
3730 ulong32 i;
3731 Scsi_Cmnd *nscp;
3732 gdth_ha_str *ha;
3733 ulong flags;
1da177e4 3734
2d6f0d0c
JB		 3735 if(unlikely(list_empty(&gdth_instances))) {
3736 gdth_timer_running = 0;
3737 return;
3738 }
b31ddd31 3739
884f7fba 3740 ha = list_first_entry(&gdth_instances, gdth_ha_str, list);
1da177e4
LT		 3741 spin_lock_irqsave(&ha->smp_lock, flags);
3742
3743 for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i)
3744 if (ha->cmd_tab[i].cmnd != UNUSED_CMND)
3745 ++act_stats;
3746
3747 for (act_rq=0,nscp=ha->req_first; nscp; nscp=(Scsi_Cmnd*)nscp->SCp.ptr)
3748 ++act_rq;
3749
3750 TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n",
3751 act_ints, act_ios, act_stats, act_rq));
3752 act_ints = act_ios = 0;
3753
3754 gdth_timer.expires = jiffies + 30 * HZ;
3755 add_timer(&gdth_timer);
3756 spin_unlock_irqrestore(&ha->smp_lock, flags);
3757}
2d6f0d0c
JB		 3758
3759static void gdth_timer_init(void)
3760{
3761 if (gdth_timer_running)
3762 return;
3763 gdth_timer_running = 1;
3764 TRACE2(("gdth_detect(): Initializing timer !\n"));
3765 gdth_timer.expires = jiffies + HZ;
3766 gdth_timer.data = 0L;
3767 gdth_timer.function = gdth_timeout;
3768 add_timer(&gdth_timer);
3769}
3770#else
3771static inline void gdth_timer_init(void)
3772{
3773}
1da177e4
LT		 3774#endif
3775
8e879041 3776static void __init internal_setup(char *str,int *ints)
1da177e4
LT		 3777{
3778 int i, argc;
3779 char *cur_str, *argv;
3780
3781 TRACE2(("internal_setup() str %s ints[0] %d\n",
3782 str ? str:"NULL", ints ? ints[0]:0));
3783
3784 /* read irq[] from ints[] */
3785 if (ints) {
3786 argc = ints[0];
3787 if (argc > 0) {
3788 if (argc > MAXHA)
3789 argc = MAXHA;
3790 for (i = 0; i < argc; ++i)
3791 irq[i] = ints[i+1];
3792 }
3793 }
3794
3795 /* analyse string */
3796 argv = str;
3797 while (argv && (cur_str = strchr(argv, ':'))) {
3798 int val = 0, c = *++cur_str;
3799
3800 if (c == 'n' || c == 'N')
3801 val = 0;
3802 else if (c == 'y' || c == 'Y')
3803 val = 1;
3804 else
3805 val = (int)simple_strtoul(cur_str, NULL, 0);
3806
3807 if (!strncmp(argv, "disable:", 8))
3808 disable = val;
3809 else if (!strncmp(argv, "reserve_mode:", 13))
3810 reserve_mode = val;
3811 else if (!strncmp(argv, "reverse_scan:", 13))
3812 reverse_scan = val;
3813 else if (!strncmp(argv, "hdr_channel:", 12))
3814 hdr_channel = val;
3815 else if (!strncmp(argv, "max_ids:", 8))
3816 max_ids = val;
3817 else if (!strncmp(argv, "rescan:", 7))
3818 rescan = val;
1da177e4
LT		 3819 else if (!strncmp(argv, "shared_access:", 14))
3820 shared_access = val;
3821 else if (!strncmp(argv, "probe_eisa_isa:", 15))
3822 probe_eisa_isa = val;
3823 else if (!strncmp(argv, "reserve_list:", 13)) {
3824 reserve_list[0] = val;
3825 for (i = 1; i < MAX_RES_ARGS; i++) {
3826 cur_str = strchr(cur_str, ',');
3827 if (!cur_str)
3828 break;
3829 if (!isdigit((int)*++cur_str)) {
3830 --cur_str;
3831 break;
3832 }
3833 reserve_list[i] =
3834 (int)simple_strtoul(cur_str, NULL, 0);
3835 }
3836 if (!cur_str)
3837 break;
3838 argv = ++cur_str;
3839 continue;
3840 }
3841
3842 if ((argv = strchr(argv, ',')))
3843 ++argv;
3844 }
3845}
3846
3847int __init option_setup(char *str)
3848{
3849 int ints[MAXHA];
3850 char *cur = str;
3851 int i = 1;
3852
3853 TRACE2(("option_setup() str %s\n", str ? str:"NULL"));
3854
3855 while (cur && isdigit(*cur) && i <= MAXHA) {
3856 ints[i++] = simple_strtoul(cur, NULL, 0);
3857 if ((cur = strchr(cur, ',')) != NULL) cur++;
3858 }
3859
3860 ints[0] = i - 1;
3861 internal_setup(cur, ints);
3862 return 1;
3863}
3864
45f1a41b 3865static const char *gdth_ctr_name(gdth_ha_str *ha)
1da177e4 3866{
1da177e4
LT		 3867 TRACE2(("gdth_ctr_name()\n"));
3868
1da177e4
LT		 3869 if (ha->type == GDT_EISA) {
3870 switch (ha->stype) {
3871 case GDT3_ID:
3872 return("GDT3000/3020");
3873 case GDT3A_ID:
3874 return("GDT3000A/3020A/3050A");
3875 case GDT3B_ID:
3876 return("GDT3000B/3010A");
3877 }
3878 } else if (ha->type == GDT_ISA) {
3879 return("GDT2000/2020");
3880 } else if (ha->type == GDT_PCI) {
8e9a8a0d 3881 switch (ha->pdev->device) {
1da177e4
LT		 3882 case PCI_DEVICE_ID_VORTEX_GDT60x0:
3883 return("GDT6000/6020/6050");
3884 case PCI_DEVICE_ID_VORTEX_GDT6000B:
3885 return("GDT6000B/6010");
3886 }
3887 }
3888 /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */
3889
3890 return("");
3891}
3892
8e879041 3893static const char *gdth_info(struct Scsi_Host *shp)
1da177e4 3894{
45f1a41b 3895 gdth_ha_str *ha = shost_priv(shp);
1da177e4
LT		 3896
3897 TRACE2(("gdth_info()\n"));
1da177e4
LT		 3898 return ((const char *)ha->binfo.type_string);
3899}
3900
8e879041 3901static int gdth_eh_bus_reset(Scsi_Cmnd *scp)
1da177e4 3902{
45f1a41b
BH		 3903 gdth_ha_str *ha = shost_priv(scp->device->host);
3904 int i;
1da177e4
LT		 3905 ulong flags;
3906 Scsi_Cmnd *cmnd;
3907 unchar b;
3908
3909 TRACE2(("gdth_eh_bus_reset()\n"));
3910
52759e6a 3911 b = scp->device->channel;
1da177e4
LT		 3912
3913 /* clear command tab */
3914 spin_lock_irqsave(&ha->smp_lock, flags);
3915 for (i = 0; i < GDTH_MAXCMDS; ++i) {
3916 cmnd = ha->cmd_tab[i].cmnd;
3917 if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b)
3918 ha->cmd_tab[i].cmnd = UNUSED_CMND;
3919 }
3920 spin_unlock_irqrestore(&ha->smp_lock, flags);
3921
3922 if (b == ha->virt_bus) {
3923 /* host drives */
3924 for (i = 0; i < MAX_HDRIVES; ++i) {
3925 if (ha->hdr[i].present) {
3926 spin_lock_irqsave(&ha->smp_lock, flags);
3927 gdth_polling = TRUE;
45f1a41b 3928 while (gdth_test_busy(ha))
1da177e4 3929 gdth_delay(0);
45f1a41b 3930 if (gdth_internal_cmd(ha, CACHESERVICE,
1da177e4
LT		 3931 GDT_CLUST_RESET, i, 0, 0))
3932 ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED;
3933 gdth_polling = FALSE;
3934 spin_unlock_irqrestore(&ha->smp_lock, flags);
3935 }
3936 }
3937 } else {
3938 /* raw devices */
3939 spin_lock_irqsave(&ha->smp_lock, flags);
3940 for (i = 0; i < MAXID; ++i)
3941 ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0;
3942 gdth_polling = TRUE;
45f1a41b 3943 while (gdth_test_busy(ha))
1da177e4 3944 gdth_delay(0);
45f1a41b 3945 gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESET_BUS,
1da177e4
LT		 3946 BUS_L2P(ha,b), 0, 0);
3947 gdth_polling = FALSE;
cbd5f69b 3948 spin_unlock_irqrestore(&ha->smp_lock, flags);
1da177e4
LT		 3949 }
3950 return SUCCESS;
3951}
3952
8e879041 3953static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip)
1da177e4
LT		 3954{
3955 unchar b, t;
45f1a41b 3956 gdth_ha_str *ha = shost_priv(sdev->host);
1da177e4
LT		 3957 struct scsi_device *sd;
3958 unsigned capacity;
3959
1da177e4
LT		 3960 sd = sdev;
3961 capacity = cap;
52759e6a 3962 b = sd->channel;
1da177e4 3963 t = sd->id;
45f1a41b 3964 TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", ha->hanum, b, t));
1da177e4
LT		 3965
3966 if (b != ha->virt_bus || ha->hdr[t].heads == 0) {
3967 /* raw device or host drive without mapping information */
3968 TRACE2(("Evaluate mapping\n"));
3969 gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]);
3970 } else {
3971 ip[0] = ha->hdr[t].heads;
3972 ip[1] = ha->hdr[t].secs;
3973 ip[2] = capacity / ip[0] / ip[1];
3974 }
3975
3976 TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n",
3977 ip[0],ip[1],ip[2]));
3978 return 0;
3979}
3980
3981
b8bff2ae
MW		 3982static int gdth_queuecommand(struct scsi_cmnd *scp,
3983 void (*done)(struct scsi_cmnd *))
1da177e4 3984{
45f1a41b 3985 gdth_ha_str *ha = shost_priv(scp->device->host);
3058d5de 3986 struct gdth_cmndinfo *cmndinfo;
1da177e4
LT		 3987
3988 TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0]));
3058d5de
BH		 3989
3990 cmndinfo = gdth_get_cmndinfo(ha);
3991 BUG_ON(!cmndinfo);
3992
b8bff2ae 3993 scp->scsi_done = done;
3058d5de 3994 gdth_update_timeout(scp, scp->timeout_per_command * 6);
f842b64e 3995 cmndinfo->priority = DEFAULT_PRI;
3892d88a 3996
3058d5de
BH		 3997 return __gdth_queuecommand(ha, scp, cmndinfo);
3998}
3999
4000static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp,
4001 struct gdth_cmndinfo *cmndinfo)
4002{
4003 scp->host_scribble = (unsigned char *)cmndinfo;
f842b64e
BH		 4004 cmndinfo->wait_for_completion = 1;
4005 cmndinfo->phase = -1;
4006 cmndinfo->OpCode = -1;
1da177e4 4007
1da177e4
LT		 4008#ifdef GDTH_STATISTICS
4009 ++act_ios;
4010#endif
4011
f842b64e 4012 gdth_putq(ha, scp, cmndinfo->priority);
45f1a41b 4013 gdth_next(ha);
1da177e4
LT		 4014 return 0;
4015}
4016
4017
4018static int gdth_open(struct inode *inode, struct file *filep)
4019{
4020 gdth_ha_str *ha;
1da177e4 4021
884f7fba 4022 list_for_each_entry(ha, &gdth_instances, list) {
1da177e4 4023 if (!ha->sdev)
884f7fba 4024 ha->sdev = scsi_get_host_dev(ha->shost);
1da177e4
LT		 4025 }
4026
4027 TRACE(("gdth_open()\n"));
4028 return 0;
4029}
4030
4031static int gdth_close(struct inode *inode, struct file *filep)
4032{
4033 TRACE(("gdth_close()\n"));
4034 return 0;
4035}
4036
4037static int ioc_event(void __user *arg)
4038{
4039 gdth_ioctl_event evt;
4040 gdth_ha_str *ha;
4041 ulong flags;
4042
884f7fba
BH		 4043 if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)))
4044 return -EFAULT;
4045 ha = gdth_find_ha(evt.ionode);
4046 if (!ha)
1da177e4 4047 return -EFAULT;
1da177e4
LT		 4048
4049 if (evt.erase == 0xff) {
4050 if (evt.event.event_source == ES_TEST)
4051 evt.event.event_data.size=sizeof(evt.event.event_data.eu.test);
4052 else if (evt.event.event_source == ES_DRIVER)
4053 evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver);
4054 else if (evt.event.event_source == ES_SYNC)
4055 evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync);
4056 else
4057 evt.event.event_data.size=sizeof(evt.event.event_data.eu.async);
4058 spin_lock_irqsave(&ha->smp_lock, flags);
4059 gdth_store_event(ha, evt.event.event_source, evt.event.event_idx,
4060 &evt.event.event_data);
4061 spin_unlock_irqrestore(&ha->smp_lock, flags);
4062 } else if (evt.erase == 0xfe) {
4063 gdth_clear_events();
4064 } else if (evt.erase == 0) {
4065 evt.handle = gdth_read_event(ha, evt.handle, &evt.event);
4066 } else {
4067 gdth_readapp_event(ha, evt.erase, &evt.event);
4068 }
4069 if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event)))
4070 return -EFAULT;
4071 return 0;
4072}
4073
4074static int ioc_lockdrv(void __user *arg)
4075{
4076 gdth_ioctl_lockdrv ldrv;
4077 unchar i, j;
4078 ulong flags;
4079 gdth_ha_str *ha;
4080
884f7fba 4081 if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)))
1da177e4 4082 return -EFAULT;
884f7fba
BH		 4083 ha = gdth_find_ha(ldrv.ionode);
4084 if (!ha)
4085 return -EFAULT;
4086
1da177e4
LT		 4087 for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) {
4088 j = ldrv.drives[i];
4089 if (j >= MAX_HDRIVES || !ha->hdr[j].present)
4090 continue;
4091 if (ldrv.lock) {
4092 spin_lock_irqsave(&ha->smp_lock, flags);
4093 ha->hdr[j].lock = 1;
4094 spin_unlock_irqrestore(&ha->smp_lock, flags);
45f1a41b
BH		 4095 gdth_wait_completion(ha, ha->bus_cnt, j);
4096 gdth_stop_timeout(ha, ha->bus_cnt, j);
1da177e4
LT		 4097 } else {
4098 spin_lock_irqsave(&ha->smp_lock, flags);
4099 ha->hdr[j].lock = 0;
4100 spin_unlock_irqrestore(&ha->smp_lock, flags);
45f1a41b
BH		 4101 gdth_start_timeout(ha, ha->bus_cnt, j);
4102 gdth_next(ha);
1da177e4
LT		 4103 }
4104 }
4105 return 0;
4106}
4107
4108static int ioc_resetdrv(void __user *arg, char *cmnd)
4109{
4110 gdth_ioctl_reset res;
4111 gdth_cmd_str cmd;
1da177e4 4112 gdth_ha_str *ha;
cbd5f69b 4113 int rval;
1da177e4
LT		 4114
4115 if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
884f7fba
BH		 4116 res.number >= MAX_HDRIVES)
4117 return -EFAULT;
4118 ha = gdth_find_ha(res.ionode);
4119 if (!ha)
1da177e4 4120 return -EFAULT;
45f1a41b 4121
1da177e4
LT		 4122 if (!ha->hdr[res.number].present)
4123 return 0;
4124 memset(&cmd, 0, sizeof(gdth_cmd_str));
4125 cmd.Service = CACHESERVICE;
4126 cmd.OpCode = GDT_CLUST_RESET;
4127 if (ha->cache_feat & GDT_64BIT)
4128 cmd.u.cache64.DeviceNo = res.number;
4129 else
4130 cmd.u.cache.DeviceNo = res.number;
cbd5f69b
LA		 4131
4132 rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
4133 if (rval < 0)
4134 return rval;
4135 res.status = rval;
1da177e4
LT		 4136
4137 if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
4138 return -EFAULT;
4139 return 0;
4140}
4141
4142static int ioc_general(void __user *arg, char *cmnd)
4143{
4144 gdth_ioctl_general gen;
4145 char *buf = NULL;
4146 ulong64 paddr;
cbd5f69b
LA		 4147 gdth_ha_str *ha;
4148 int rval;
884f7fba
BH		 4149
4150 if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)))
4151 return -EFAULT;
4152 ha = gdth_find_ha(gen.ionode);
4153 if (!ha)
1da177e4 4154 return -EFAULT;
1da177e4 4155 if (gen.data_len + gen.sense_len != 0) {
45f1a41b 4156 if (!(buf = gdth_ioctl_alloc(ha, gen.data_len + gen.sense_len,
1da177e4
LT		 4157 FALSE, &paddr)))
4158 return -EFAULT;
4159 if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general),
4160 gen.data_len + gen.sense_len)) {
45f1a41b 4161 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
1da177e4
LT		 4162 return -EFAULT;
4163 }
4164
4165 if (gen.command.OpCode == GDT_IOCTL) {
4166 gen.command.u.ioctl.p_param = paddr;
4167 } else if (gen.command.Service == CACHESERVICE) {
4168 if (ha->cache_feat & GDT_64BIT) {
4169 /* copy elements from 32-bit IOCTL structure */
4170 gen.command.u.cache64.BlockCnt = gen.command.u.cache.BlockCnt;
4171 gen.command.u.cache64.BlockNo = gen.command.u.cache.BlockNo;
4172 gen.command.u.cache64.DeviceNo = gen.command.u.cache.DeviceNo;
4173 /* addresses */
4174 if (ha->cache_feat & SCATTER_GATHER) {
4175 gen.command.u.cache64.DestAddr = (ulong64)-1;
4176 gen.command.u.cache64.sg_canz = 1;
4177 gen.command.u.cache64.sg_lst[0].sg_ptr = paddr;
4178 gen.command.u.cache64.sg_lst[0].sg_len = gen.data_len;
4179 gen.command.u.cache64.sg_lst[1].sg_len = 0;
4180 } else {
4181 gen.command.u.cache64.DestAddr = paddr;
4182 gen.command.u.cache64.sg_canz = 0;
4183 }
4184 } else {
4185 if (ha->cache_feat & SCATTER_GATHER) {
4186 gen.command.u.cache.DestAddr = 0xffffffff;
4187 gen.command.u.cache.sg_canz = 1;
4188 gen.command.u.cache.sg_lst[0].sg_ptr = (ulong32)paddr;
4189 gen.command.u.cache.sg_lst[0].sg_len = gen.data_len;
4190 gen.command.u.cache.sg_lst[1].sg_len = 0;
4191 } else {
4192 gen.command.u.cache.DestAddr = paddr;
4193 gen.command.u.cache.sg_canz = 0;
4194 }
4195 }
4196 } else if (gen.command.Service == SCSIRAWSERVICE) {
4197 if (ha->raw_feat & GDT_64BIT) {
4198 /* copy elements from 32-bit IOCTL structure */
4199 char cmd[16];
4200 gen.command.u.raw64.sense_len = gen.command.u.raw.sense_len;
4201 gen.command.u.raw64.bus = gen.command.u.raw.bus;
4202 gen.command.u.raw64.lun = gen.command.u.raw.lun;
4203 gen.command.u.raw64.target = gen.command.u.raw.target;
4204 memcpy(cmd, gen.command.u.raw.cmd, 16);
4205 memcpy(gen.command.u.raw64.cmd, cmd, 16);
4206 gen.command.u.raw64.clen = gen.command.u.raw.clen;
4207 gen.command.u.raw64.sdlen = gen.command.u.raw.sdlen;
4208 gen.command.u.raw64.direction = gen.command.u.raw.direction;
4209 /* addresses */
4210 if (ha->raw_feat & SCATTER_GATHER) {
4211 gen.command.u.raw64.sdata = (ulong64)-1;
4212 gen.command.u.raw64.sg_ranz = 1;
4213 gen.command.u.raw64.sg_lst[0].sg_ptr = paddr;
4214 gen.command.u.raw64.sg_lst[0].sg_len = gen.data_len;
4215 gen.command.u.raw64.sg_lst[1].sg_len = 0;
4216 } else {
4217 gen.command.u.raw64.sdata = paddr;
4218 gen.command.u.raw64.sg_ranz = 0;
4219 }
4220 gen.command.u.raw64.sense_data = paddr + gen.data_len;
4221 } else {
4222 if (ha->raw_feat & SCATTER_GATHER) {
4223 gen.command.u.raw.sdata = 0xffffffff;
4224 gen.command.u.raw.sg_ranz = 1;
4225 gen.command.u.raw.sg_lst[0].sg_ptr = (ulong32)paddr;
4226 gen.command.u.raw.sg_lst[0].sg_len = gen.data_len;
4227 gen.command.u.raw.sg_lst[1].sg_len = 0;
4228 } else {
4229 gen.command.u.raw.sdata = paddr;
4230 gen.command.u.raw.sg_ranz = 0;
4231 }
4232 gen.command.u.raw.sense_data = (ulong32)paddr + gen.data_len;
4233 }
4234 } else {
45f1a41b 4235 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
1da177e4
LT		 4236 return -EFAULT;
4237 }
4238 }
4239
cbd5f69b
LA		 4240 rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
4241 if (rval < 0)
4242 return rval;
4243 gen.status = rval;
1da177e4
LT		 4244
4245 if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
4246 gen.data_len + gen.sense_len)) {
45f1a41b 4247 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
1da177e4
LT		 4248 return -EFAULT;
4249 }
4250 if (copy_to_user(arg, &gen,
4251 sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) {
45f1a41b 4252 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
1da177e4
LT		 4253 return -EFAULT;
4254 }
45f1a41b 4255 gdth_ioctl_free(ha, gen.data_len+gen.sense_len, buf, paddr);
1da177e4
LT		 4256 return 0;
4257}
4258
4259static int ioc_hdrlist(void __user *arg, char *cmnd)
4260{
4261 gdth_ioctl_rescan *rsc;
4262 gdth_cmd_str *cmd;
4263 gdth_ha_str *ha;
4264 unchar i;
45f1a41b 4265 int rc = -ENOMEM;
cbd5f69b
LA		 4266 u32 cluster_type = 0;
4267
1da177e4
LT		 4268 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4269 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4270 if (!rsc || !cmd)
cbd5f69b 4271 goto free_fail;
1da177e4
LT		 4272
4273 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
884f7fba 4274 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
1da177e4 4275 rc = -EFAULT;
cbd5f69b 4276 goto free_fail;
1da177e4 4277 }
1da177e4
LT		 4278 memset(cmd, 0, sizeof(gdth_cmd_str));
4279
1da177e4
LT		 4280 for (i = 0; i < MAX_HDRIVES; ++i) {
4281 if (!ha->hdr[i].present) {
4282 rsc->hdr_list[i].bus = 0xff;
4283 continue;
4284 }
4285 rsc->hdr_list[i].bus = ha->virt_bus;
4286 rsc->hdr_list[i].target = i;
4287 rsc->hdr_list[i].lun = 0;
4288 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4289 if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) {
4290 cmd->Service = CACHESERVICE;
4291 cmd->OpCode = GDT_CLUST_INFO;
4292 if (ha->cache_feat & GDT_64BIT)
4293 cmd->u.cache64.DeviceNo = i;
4294 else
4295 cmd->u.cache.DeviceNo = i;
cbd5f69b
LA		 4296 if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
4297 rsc->hdr_list[i].cluster_type = cluster_type;
1da177e4
LT		 4298 }
4299 }
cbd5f69b 4300
1da177e4
LT		 4301 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4302 rc = -EFAULT;
4303 else
cbd5f69b 4304 rc = 0;
1da177e4
LT		 4305
4306free_fail:
4307 kfree(rsc);
4308 kfree(cmd);
4309 return rc;
4310}
4311
4312static int ioc_rescan(void __user *arg, char *cmnd)
4313{
4314 gdth_ioctl_rescan *rsc;
4315 gdth_cmd_str *cmd;
4316 ushort i, status, hdr_cnt;
4317 ulong32 info;
45f1a41b 4318 int cyls, hds, secs;
1da177e4
LT		 4319 int rc = -ENOMEM;
4320 ulong flags;
4321 gdth_ha_str *ha;
1da177e4
LT		 4322
4323 rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
4324 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
4325 if (!cmd || !rsc)
cbd5f69b 4326 goto free_fail;
1da177e4
LT		 4327
4328 if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) ||
884f7fba 4329 (NULL == (ha = gdth_find_ha(rsc->ionode)))) {
cbd5f69b
LA		 4330 rc = -EFAULT;
4331 goto free_fail;
1da177e4 4332 }
1da177e4
LT		 4333 memset(cmd, 0, sizeof(gdth_cmd_str));
4334
1da177e4
LT		 4335 if (rsc->flag == 0) {
4336 /* old method: re-init. cache service */
4337 cmd->Service = CACHESERVICE;
4338 if (ha->cache_feat & GDT_64BIT) {
4339 cmd->OpCode = GDT_X_INIT_HOST;
4340 cmd->u.cache64.DeviceNo = LINUX_OS;
4341 } else {
4342 cmd->OpCode = GDT_INIT;
4343 cmd->u.cache.DeviceNo = LINUX_OS;
4344 }
cbd5f69b
LA		 4345
4346 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
1da177e4
LT		 4347 i = 0;
4348 hdr_cnt = (status == S_OK ? (ushort)info : 0);
4349 } else {
4350 i = rsc->hdr_no;
4351 hdr_cnt = i + 1;
4352 }
4353
4354 for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) {
4355 cmd->Service = CACHESERVICE;
4356 cmd->OpCode = GDT_INFO;
4357 if (ha->cache_feat & GDT_64BIT)
4358 cmd->u.cache64.DeviceNo = i;
4359 else
4360 cmd->u.cache.DeviceNo = i;
cbd5f69b
LA		 4361
4362 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4363
1da177e4
LT		 4364 spin_lock_irqsave(&ha->smp_lock, flags);
4365 rsc->hdr_list[i].bus = ha->virt_bus;
4366 rsc->hdr_list[i].target = i;
4367 rsc->hdr_list[i].lun = 0;
4368 if (status != S_OK) {
4369 ha->hdr[i].present = FALSE;
4370 } else {
4371 ha->hdr[i].present = TRUE;
4372 ha->hdr[i].size = info;
4373 /* evaluate mapping */
4374 ha->hdr[i].size &= ~SECS32;
4375 gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs);
4376 ha->hdr[i].heads = hds;
4377 ha->hdr[i].secs = secs;
4378 /* round size */
4379 ha->hdr[i].size = cyls * hds * secs;
4380 }
4381 spin_unlock_irqrestore(&ha->smp_lock, flags);
4382 if (status != S_OK)
4383 continue;
4384
4385 /* extended info, if GDT_64BIT, for drives > 2 TB */
4386 /* but we need ha->info2, not yet stored in scp->SCp */
4387
4388 /* devtype, cluster info, R/W attribs */
4389 cmd->Service = CACHESERVICE;
4390 cmd->OpCode = GDT_DEVTYPE;
4391 if (ha->cache_feat & GDT_64BIT)
4392 cmd->u.cache64.DeviceNo = i;
4393 else
4394 cmd->u.cache.DeviceNo = i;
cbd5f69b
LA		 4395
4396 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4397
1da177e4
LT		 4398 spin_lock_irqsave(&ha->smp_lock, flags);
4399 ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
4400 spin_unlock_irqrestore(&ha->smp_lock, flags);
4401
4402 cmd->Service = CACHESERVICE;
4403 cmd->OpCode = GDT_CLUST_INFO;
4404 if (ha->cache_feat & GDT_64BIT)
4405 cmd->u.cache64.DeviceNo = i;
4406 else
4407 cmd->u.cache.DeviceNo = i;
cbd5f69b
LA		 4408
4409 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4410
1da177e4
LT		 4411 spin_lock_irqsave(&ha->smp_lock, flags);
4412 ha->hdr[i].cluster_type =
4413 ((status == S_OK && !shared_access) ? (ushort)info : 0);
4414 spin_unlock_irqrestore(&ha->smp_lock, flags);
4415 rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type;
4416
4417 cmd->Service = CACHESERVICE;
4418 cmd->OpCode = GDT_RW_ATTRIBS;
4419 if (ha->cache_feat & GDT_64BIT)
4420 cmd->u.cache64.DeviceNo = i;
4421 else
4422 cmd->u.cache.DeviceNo = i;
cbd5f69b
LA		 4423
4424 status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
4425
1da177e4
LT		 4426 spin_lock_irqsave(&ha->smp_lock, flags);
4427 ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
4428 spin_unlock_irqrestore(&ha->smp_lock, flags);
4429 }
1da177e4
LT		 4430
4431 if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
4432 rc = -EFAULT;
4433 else
cbd5f69b 4434 rc = 0;
1da177e4
LT		 4435
4436free_fail:
4437 kfree(rsc);
4438 kfree(cmd);
4439 return rc;
4440}
4441
4442static int gdth_ioctl(struct inode *inode, struct file *filep,
4443 unsigned int cmd, unsigned long arg)
4444{
4445 gdth_ha_str *ha;
4446 Scsi_Cmnd *scp;
4447 ulong flags;
4448 char cmnd[MAX_COMMAND_SIZE];
4449 void __user *argp = (void __user *)arg;
4450
4451 memset(cmnd, 0xff, 12);
4452
4453 TRACE(("gdth_ioctl() cmd 0x%x\n", cmd));
4454
4455 switch (cmd) {
4456 case GDTIOCTL_CTRCNT:
4457 {
4458 int cnt = gdth_ctr_count;
4459 if (put_user(cnt, (int __user *)argp))
4460 return -EFAULT;
4461 break;
4462 }
4463
4464 case GDTIOCTL_DRVERS:
4465 {
4466 int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION;
4467 if (put_user(ver, (int __user *)argp))
4468 return -EFAULT;
4469 break;
4470 }
4471
4472 case GDTIOCTL_OSVERS:
4473 {
4474 gdth_ioctl_osvers osv;
4475
4476 osv.version = (unchar)(LINUX_VERSION_CODE >> 16);
4477 osv.subversion = (unchar)(LINUX_VERSION_CODE >> 8);
4478 osv.revision = (ushort)(LINUX_VERSION_CODE & 0xff);
4479 if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers)))
4480 return -EFAULT;
4481 break;
4482 }
4483
4484 case GDTIOCTL_CTRTYPE:
4485 {
4486 gdth_ioctl_ctrtype ctrt;
4487
4488 if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) ||
884f7fba 4489 (NULL == (ha = gdth_find_ha(ctrt.ionode))))
1da177e4 4490 return -EFAULT;
884f7fba 4491
1da177e4
LT		 4492 if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
4493 ctrt.type = (unchar)((ha->stype>>20) - 0x10);
4494 } else {
4495 if (ha->type != GDT_PCIMPR) {
4496 ctrt.type = (unchar)((ha->stype<<4) + 6);
4497 } else {
4498 ctrt.type =
4499 (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
4500 if (ha->stype >= 0x300)
8e9a8a0d 4501 ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
1da177e4
LT		 4502 else
4503 ctrt.ext_type = 0x6000 | ha->stype;
4504 }
8e9a8a0d
JG		 4505 ctrt.device_id = ha->pdev->device;
4506 ctrt.sub_device_id = ha->pdev->subsystem_device;
1da177e4
LT		 4507 }
4508 ctrt.info = ha->brd_phys;
4509 ctrt.oem_id = ha->oem_id;
4510 if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
4511 return -EFAULT;
4512 break;
4513 }
4514
4515 case GDTIOCTL_GENERAL:
4516 return ioc_general(argp, cmnd);
4517
4518 case GDTIOCTL_EVENT:
4519 return ioc_event(argp);
4520
4521 case GDTIOCTL_LOCKDRV:
4522 return ioc_lockdrv(argp);
4523
4524 case GDTIOCTL_LOCKCHN:
4525 {
4526 gdth_ioctl_lockchn lchn;
4527 unchar i, j;
4528
4529 if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) ||
884f7fba 4530 (NULL == (ha = gdth_find_ha(lchn.ionode))))
1da177e4 4531 return -EFAULT;
884f7fba 4532
1da177e4
LT		 4533 i = lchn.channel;
4534 if (i < ha->bus_cnt) {
4535 if (lchn.lock) {
4536 spin_lock_irqsave(&ha->smp_lock, flags);
4537 ha->raw[i].lock = 1;
4538 spin_unlock_irqrestore(&ha->smp_lock, flags);
4539 for (j = 0; j < ha->tid_cnt; ++j) {
45f1a41b
BH		 4540 gdth_wait_completion(ha, i, j);
4541 gdth_stop_timeout(ha, i, j);
1da177e4
LT		 4542 }
4543 } else {
4544 spin_lock_irqsave(&ha->smp_lock, flags);
4545 ha->raw[i].lock = 0;
4546 spin_unlock_irqrestore(&ha->smp_lock, flags);
4547 for (j = 0; j < ha->tid_cnt; ++j) {
45f1a41b
BH		 4548 gdth_start_timeout(ha, i, j);
4549 gdth_next(ha);
1da177e4
LT		 4550 }
4551 }
4552 }
4553 break;
4554 }
4555
4556 case GDTIOCTL_RESCAN:
4557 return ioc_rescan(argp, cmnd);
4558
4559 case GDTIOCTL_HDRLIST:
4560 return ioc_hdrlist(argp, cmnd);
4561
4562 case GDTIOCTL_RESET_BUS:
4563 {
4564 gdth_ioctl_reset res;
45f1a41b 4565 int rval;
1da177e4
LT		 4566
4567 if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) ||
884f7fba 4568 (NULL == (ha = gdth_find_ha(res.ionode))))
1da177e4 4569 return -EFAULT;
1da177e4 4570
bbfbbbc1 4571 scp = kzalloc(sizeof(*scp), GFP_KERNEL);
1da177e4
LT		 4572 if (!scp)
4573 return -ENOMEM;
cbd5f69b 4574 scp->device = ha->sdev;
1da177e4 4575 scp->cmd_len = 12;
52759e6a 4576 scp->device->channel = res.number;
1da177e4
LT		 4577 rval = gdth_eh_bus_reset(scp);
4578 res.status = (rval == SUCCESS ? S_OK : S_GENERR);
cbd5f69b 4579 kfree(scp);
8d7a5da4 4580
1da177e4
LT		 4581 if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset)))
4582 return -EFAULT;
4583 break;
4584 }
4585
4586 case GDTIOCTL_RESET_DRV:
4587 return ioc_resetdrv(argp, cmnd);
4588
4589 default:
4590 break;
4591 }
4592 return 0;
4593}
4594
4595
4596/* flush routine */
45f1a41b 4597static void gdth_flush(gdth_ha_str *ha)
1da177e4
LT		 4598{
4599 int i;
1da177e4 4600 gdth_cmd_str gdtcmd;
1da177e4
LT		 4601 char cmnd[MAX_COMMAND_SIZE];
4602 memset(cmnd, 0xff, MAX_COMMAND_SIZE);
4603
45f1a41b 4604 TRACE2(("gdth_flush() hanum %d\n", ha->hanum));
1da177e4 4605
1da177e4
LT		 4606 for (i = 0; i < MAX_HDRIVES; ++i) {
4607 if (ha->hdr[i].present) {
4608 gdtcmd.BoardNode = LOCALBOARD;
4609 gdtcmd.Service = CACHESERVICE;
4610 gdtcmd.OpCode = GDT_FLUSH;
4611 if (ha->cache_feat & GDT_64BIT) {
4612 gdtcmd.u.cache64.DeviceNo = i;
4613 gdtcmd.u.cache64.BlockNo = 1;
4614 gdtcmd.u.cache64.sg_canz = 0;
4615 } else {
4616 gdtcmd.u.cache.DeviceNo = i;
4617 gdtcmd.u.cache.BlockNo = 1;
4618 gdtcmd.u.cache.sg_canz = 0;
4619 }
45f1a41b 4620 TRACE2(("gdth_flush(): flush ha %d drive %d\n", ha->hanum, i));
cbd5f69b 4621
45f1a41b 4622 gdth_execute(ha->shost, &gdtcmd, cmnd, 30, NULL);
1da177e4
LT		 4623 }
4624 }
1da177e4
LT		 4625}
4626
cbd5f69b
LA		 4627/* configure lun */
4628static int gdth_slave_configure(struct scsi_device *sdev)
4629{
4630 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4631 sdev->skip_ms_page_3f = 1;
4632 sdev->skip_ms_page_8 = 1;
4633 return 0;
4634}
cbd5f69b 4635
835cc24a 4636static struct scsi_host_template gdth_template = {
1da177e4 4637 .name = "GDT SCSI Disk Array Controller",
1da177e4
LT		 4638 .info = gdth_info,
4639 .queuecommand = gdth_queuecommand,
1da177e4 4640 .eh_bus_reset_handler = gdth_eh_bus_reset,
69916b7c 4641 .slave_configure = gdth_slave_configure,
1da177e4 4642 .bios_param = gdth_bios_param,
69916b7c
JG		 4643 .proc_info = gdth_proc_info,
4644 .proc_name = "gdth",
1da177e4
LT		 4645 .can_queue = GDTH_MAXCMDS,
4646 .this_id = -1,
4647 .sg_tablesize = GDTH_MAXSG,
4648 .cmd_per_lun = GDTH_MAXC_P_L,
4649 .unchecked_isa_dma = 1,
4650 .use_clustering = ENABLE_CLUSTERING,
1da177e4
LT		 4651};
4652
aed91cb5 4653#ifdef CONFIG_ISA
05dd7ed2 4654static int __init gdth_isa_probe_one(ulong32 isa_bios)
aed91cb5
CH		 4655{
4656 struct Scsi_Host *shp;
4657 gdth_ha_str *ha;
4658 dma_addr_t scratch_dma_handle = 0;
884f7fba 4659 int error, i;
aed91cb5
CH		 4660
4661 if (!gdth_search_isa(isa_bios))
4662 return -ENXIO;
4663
835cc24a 4664 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
aed91cb5
CH		 4665 if (!shp)
4666 return -ENOMEM;
45f1a41b 4667 ha = shost_priv(shp);
aed91cb5
CH		 4668
4669 error = -ENODEV;
4670 if (!gdth_init_isa(isa_bios,ha))
4671 goto out_host_put;
4672
4673 /* controller found and initialized */
4674 printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
4675 isa_bios, ha->irq, ha->drq);
4676
4677 error = request_irq(ha->irq, gdth_interrupt, IRQF_DISABLED, "gdth", ha);
4678 if (error) {
4679 printk("GDT-ISA: Unable to allocate IRQ\n");
4680 goto out_host_put;
4681 }
4682
4683 error = request_dma(ha->drq, "gdth");
4684 if (error) {
4685 printk("GDT-ISA: Unable to allocate DMA channel\n");
4686 goto out_free_irq;
4687 }
4688
4689 set_dma_mode(ha->drq,DMA_MODE_CASCADE);
4690 enable_dma(ha->drq);
4691 shp->unchecked_isa_dma = 1;
4692 shp->irq = ha->irq;
4693 shp->dma_channel = ha->drq;
aed91cb5 4694
884f7fba 4695 ha->hanum = gdth_ctr_count++;
45f1a41b 4696 ha->shost = shp;
aed91cb5 4697
45f1a41b 4698 ha->pccb = &ha->cmdext;
aed91cb5
CH		 4699 ha->ccb_phys = 0L;
4700 ha->pdev = NULL;
4701
4702 error = -ENOMEM;
4703
4704 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4705 &scratch_dma_handle);
4706 if (!ha->pscratch)
4707 goto out_dec_counters;
4708 ha->scratch_phys = scratch_dma_handle;
4709
4710 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4711 &scratch_dma_handle);
4712 if (!ha->pmsg)
4713 goto out_free_pscratch;
4714 ha->msg_phys = scratch_dma_handle;
4715
4716#ifdef INT_COAL
4717 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4718 sizeof(gdth_coal_status) * MAXOFFSETS,
4719 &scratch_dma_handle);
4720 if (!ha->coal_stat)
4721 goto out_free_pmsg;
4722 ha->coal_stat_phys = scratch_dma_handle;
4723#endif
4724
4725 ha->scratch_busy = FALSE;
4726 ha->req_first = NULL;
4727 ha->tid_cnt = MAX_HDRIVES;
4728 if (max_ids > 0 && max_ids < ha->tid_cnt)
4729 ha->tid_cnt = max_ids;
4730 for (i = 0; i < GDTH_MAXCMDS; ++i)
4731 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4732 ha->scan_mode = rescan ? 0x10 : 0;
4733
4734 error = -ENODEV;
45f1a41b 4735 if (!gdth_search_drives(ha)) {
aed91cb5
CH		 4736 printk("GDT-ISA: Error during device scan\n");
4737 goto out_free_coal_stat;
4738 }
4739
4740 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4741 hdr_channel = ha->bus_cnt;
4742 ha->virt_bus = hdr_channel;
4743
4744 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4745 shp->max_cmd_len = 16;
4746
4747 shp->max_id = ha->tid_cnt;
4748 shp->max_lun = MAXLUN;
52759e6a 4749 shp->max_channel = ha->bus_cnt;
aed91cb5
CH		 4750
4751 spin_lock_init(&ha->smp_lock);
45f1a41b 4752 gdth_enable_int(ha);
aed91cb5 4753
835cc24a
CH		 4754 error = scsi_add_host(shp, NULL);
4755 if (error)
4756 goto out_free_coal_stat;
4757 list_add_tail(&ha->list, &gdth_instances);
2d6f0d0c 4758 gdth_timer_init();
61c92814
BH		 4759
4760 scsi_scan_host(shp);
4761
aed91cb5
CH		 4762 return 0;
4763
4764 out_free_coal_stat:
4765#ifdef INT_COAL
4766 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4767 ha->coal_stat, ha->coal_stat_phys);
4768 out_free_pmsg:
4769#endif
4770 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4771 ha->pmsg, ha->msg_phys);
4772 out_free_pscratch:
4773 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4774 ha->pscratch, ha->scratch_phys);
4775 out_dec_counters:
4776 gdth_ctr_count--;
aed91cb5
CH		 4777 out_free_irq:
4778 free_irq(ha->irq, ha);
4779 out_host_put:
835cc24a 4780 scsi_host_put(shp);
aed91cb5
CH		 4781 return error;
4782}
4783#endif /* CONFIG_ISA */
4784
706a5d45 4785#ifdef CONFIG_EISA
05dd7ed2 4786static int __init gdth_eisa_probe_one(ushort eisa_slot)
706a5d45
CH		 4787{
4788 struct Scsi_Host *shp;
4789 gdth_ha_str *ha;
4790 dma_addr_t scratch_dma_handle = 0;
884f7fba 4791 int error, i;
706a5d45
CH		 4792
4793 if (!gdth_search_eisa(eisa_slot))
4794 return -ENXIO;
4795
835cc24a 4796 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
706a5d45
CH		 4797 if (!shp)
4798 return -ENOMEM;
45f1a41b 4799 ha = shost_priv(shp);
706a5d45
CH		 4800
4801 error = -ENODEV;
4802 if (!gdth_init_eisa(eisa_slot,ha))
4803 goto out_host_put;
4804
4805 /* controller found and initialized */
4806 printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
4807 eisa_slot >> 12, ha->irq);
4808
4809 error = request_irq(ha->irq, gdth_interrupt, IRQF_DISABLED, "gdth", ha);
4810 if (error) {
4811 printk("GDT-EISA: Unable to allocate IRQ\n");
4812 goto out_host_put;
4813 }
4814
4815 shp->unchecked_isa_dma = 0;
4816 shp->irq = ha->irq;
4817 shp->dma_channel = 0xff;
706a5d45 4818
884f7fba 4819 ha->hanum = gdth_ctr_count++;
45f1a41b
BH		 4820 ha->shost = shp;
4821
4822 TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum));
706a5d45 4823
45f1a41b 4824 ha->pccb = &ha->cmdext;
706a5d45
CH		 4825 ha->ccb_phys = 0L;
4826
4827 error = -ENOMEM;
4828
4829 ha->pdev = NULL;
4830 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4831 &scratch_dma_handle);
4832 if (!ha->pscratch)
4833 goto out_free_irq;
4834 ha->scratch_phys = scratch_dma_handle;
4835
4836 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4837 &scratch_dma_handle);
4838 if (!ha->pmsg)
4839 goto out_free_pscratch;
4840 ha->msg_phys = scratch_dma_handle;
4841
4842#ifdef INT_COAL
4843 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4844 sizeof(gdth_coal_status) * MAXOFFSETS,
4845 &scratch_dma_handle);
4846 if (!ha->coal_stat)
4847 goto out_free_pmsg;
4848 ha->coal_stat_phys = scratch_dma_handle;
4849#endif
4850
4851 ha->ccb_phys = pci_map_single(ha->pdev,ha->pccb,
4852 sizeof(gdth_cmd_str), PCI_DMA_BIDIRECTIONAL);
4853 if (!ha->ccb_phys)
4854 goto out_free_coal_stat;
4855
4856 ha->scratch_busy = FALSE;
4857 ha->req_first = NULL;
4858 ha->tid_cnt = MAX_HDRIVES;
4859 if (max_ids > 0 && max_ids < ha->tid_cnt)
4860 ha->tid_cnt = max_ids;
4861 for (i = 0; i < GDTH_MAXCMDS; ++i)
4862 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4863 ha->scan_mode = rescan ? 0x10 : 0;
4864
45f1a41b 4865 if (!gdth_search_drives(ha)) {
706a5d45
CH		 4866 printk("GDT-EISA: Error during device scan\n");
4867 error = -ENODEV;
4868 goto out_free_ccb_phys;
4869 }
4870
4871 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
4872 hdr_channel = ha->bus_cnt;
4873 ha->virt_bus = hdr_channel;
4874
4875 if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
4876 shp->max_cmd_len = 16;
4877
4878 shp->max_id = ha->tid_cnt;
4879 shp->max_lun = MAXLUN;
52759e6a 4880 shp->max_channel = ha->bus_cnt;
706a5d45
CH		 4881
4882 spin_lock_init(&ha->smp_lock);
45f1a41b 4883 gdth_enable_int(ha);
835cc24a
CH		 4884
4885 error = scsi_add_host(shp, NULL);
4886 if (error)
4887 goto out_free_coal_stat;
4888 list_add_tail(&ha->list, &gdth_instances);
2d6f0d0c 4889 gdth_timer_init();
61c92814
BH		 4890
4891 scsi_scan_host(shp);
4892
706a5d45
CH		 4893 return 0;
4894
4895 out_free_ccb_phys:
4896 pci_unmap_single(ha->pdev,ha->ccb_phys, sizeof(gdth_cmd_str),
4897 PCI_DMA_BIDIRECTIONAL);
4898 out_free_coal_stat:
4899#ifdef INT_COAL
4900 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
4901 ha->coal_stat, ha->coal_stat_phys);
4902 out_free_pmsg:
4903#endif
4904 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
4905 ha->pmsg, ha->msg_phys);
4906 out_free_pscratch:
4907 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
4908 ha->pscratch, ha->scratch_phys);
4909 out_free_irq:
4910 free_irq(ha->irq, ha);
4911 gdth_ctr_count--;
706a5d45 4912 out_host_put:
835cc24a 4913 scsi_host_put(shp);
706a5d45
CH		 4914 return error;
4915}
4916#endif /* CONFIG_EISA */
aed91cb5 4917
8514ef27 4918#ifdef CONFIG_PCI
cff26806
JG		 4919static int gdth_pci_probe_one(gdth_pci_str *pcistr,
4920 gdth_ha_str **ha_out)
8514ef27
CH		 4921{
4922 struct Scsi_Host *shp;
4923 gdth_ha_str *ha;
4924 dma_addr_t scratch_dma_handle = 0;
884f7fba 4925 int error, i;
4c9c8d78 4926 struct pci_dev *pdev = pcistr->pdev;
8514ef27 4927
cff26806
JG		 4928 *ha_out = NULL;
4929
835cc24a 4930 shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
8514ef27
CH		 4931 if (!shp)
4932 return -ENOMEM;
45f1a41b 4933 ha = shost_priv(shp);
8514ef27
CH		 4934
4935 error = -ENODEV;
4c9c8d78 4936 if (!gdth_init_pci(pdev, pcistr, ha))
8514ef27
CH		 4937 goto out_host_put;
4938
4939 /* controller found and initialized */
4940 printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n",
4c9c8d78
JG		 4941 pdev->bus->number,
4942 PCI_SLOT(pdev->devfn),
8514ef27
CH		 4943 ha->irq);
4944
4945 error = request_irq(ha->irq, gdth_interrupt,
4946 IRQF_DISABLED|IRQF_SHARED, "gdth", ha);
4947 if (error) {
4948 printk("GDT-PCI: Unable to allocate IRQ\n");
4949 goto out_host_put;
4950 }
4951
4952 shp->unchecked_isa_dma = 0;
4953 shp->irq = ha->irq;
4954 shp->dma_channel = 0xff;
8514ef27 4955
884f7fba 4956 ha->hanum = gdth_ctr_count++;
45f1a41b 4957 ha->shost = shp;
8514ef27 4958
45f1a41b 4959 ha->pccb = &ha->cmdext;
8514ef27
CH		 4960 ha->ccb_phys = 0L;
4961
4962 error = -ENOMEM;
4963
4964 ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
4965 &scratch_dma_handle);
4966 if (!ha->pscratch)
4967 goto out_free_irq;
4968 ha->scratch_phys = scratch_dma_handle;
4969
4970 ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
4971 &scratch_dma_handle);
4972 if (!ha->pmsg)
4973 goto out_free_pscratch;
4974 ha->msg_phys = scratch_dma_handle;
4975
4976#ifdef INT_COAL
4977 ha->coal_stat = pci_alloc_consistent(ha->pdev,
4978 sizeof(gdth_coal_status) * MAXOFFSETS,
4979 &scratch_dma_handle);
4980 if (!ha->coal_stat)
4981 goto out_free_pmsg;
4982 ha->coal_stat_phys = scratch_dma_handle;
4983#endif
4984
4985 ha->scratch_busy = FALSE;
4986 ha->req_first = NULL;
4c9c8d78 4987 ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES;
8514ef27
CH		 4988 if (max_ids > 0 && max_ids < ha->tid_cnt)
4989 ha->tid_cnt = max_ids;
4990 for (i = 0; i < GDTH_MAXCMDS; ++i)
4991 ha->cmd_tab[i].cmnd = UNUSED_CMND;
4992 ha->scan_mode = rescan ? 0x10 : 0;
4993
4994 error = -ENODEV;
45f1a41b
BH		 4995 if (!gdth_search_drives(ha)) {
4996 printk("GDT-PCI %d: Error during device scan\n", ha->hanum);
8514ef27
CH		 4997 goto out_free_coal_stat;
4998 }
4999
5000 if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
5001 hdr_channel = ha->bus_cnt;
5002 ha->virt_bus = hdr_channel;
5003
5004 /* 64-bit DMA only supported from FW >= x.43 */
5005 if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) ||
5006 !ha->dma64_support) {
4c9c8d78 5007 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
8514ef27 5008 printk(KERN_WARNING "GDT-PCI %d: "
45f1a41b 5009 "Unable to set 32-bit DMA\n", ha->hanum);
8514ef27
CH		 5010 goto out_free_coal_stat;
5011 }
5012 } else {
5013 shp->max_cmd_len = 16;
4c9c8d78 5014 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
45f1a41b 5015 printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum);
4c9c8d78 5016 } else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
8514ef27 5017 printk(KERN_WARNING "GDT-PCI %d: "
45f1a41b 5018 "Unable to set 64/32-bit DMA\n", ha->hanum);
8514ef27
CH		 5019 goto out_free_coal_stat;
5020 }
5021 }
5022
5023 shp->max_id = ha->tid_cnt;
5024 shp->max_lun = MAXLUN;
52759e6a 5025 shp->max_channel = ha->bus_cnt;
8514ef27
CH		 5026
5027 spin_lock_init(&ha->smp_lock);
45f1a41b 5028 gdth_enable_int(ha);
835cc24a 5029
4c9c8d78 5030 error = scsi_add_host(shp, &pdev->dev);
835cc24a
CH		 5031 if (error)
5032 goto out_free_coal_stat;
5033 list_add_tail(&ha->list, &gdth_instances);
61c92814 5034
cff26806 5035 pci_set_drvdata(ha->pdev, ha);
2d6f0d0c 5036 gdth_timer_init();
cff26806 5037
61c92814
BH		 5038 scsi_scan_host(shp);
5039
cff26806
JG		 5040 *ha_out = ha;
5041
8514ef27
CH		 5042 return 0;
5043
5044 out_free_coal_stat:
5045#ifdef INT_COAL
5046 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
5047 ha->coal_stat, ha->coal_stat_phys);
5048 out_free_pmsg:
5049#endif
5050 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5051 ha->pmsg, ha->msg_phys);
5052 out_free_pscratch:
5053 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5054 ha->pscratch, ha->scratch_phys);
5055 out_free_irq:
5056 free_irq(ha->irq, ha);
5057 gdth_ctr_count--;
8514ef27 5058 out_host_put:
835cc24a 5059 scsi_host_put(shp);
8514ef27
CH		 5060 return error;
5061}
5062#endif /* CONFIG_PCI */
5063
835cc24a
CH		 5064static void gdth_remove_one(gdth_ha_str *ha)
5065{
5066 struct Scsi_Host *shp = ha->shost;
5067
5068 TRACE2(("gdth_remove_one()\n"));
5069
5070 scsi_remove_host(shp);
5071
b31ddd31
BH		 5072 gdth_flush(ha);
5073
835cc24a
CH		 5074 if (ha->sdev) {
5075 scsi_free_host_dev(ha->sdev);
5076 ha->sdev = NULL;
5077 }
5078
835cc24a
CH		 5079 if (shp->irq)
5080 free_irq(shp->irq,ha);
5081
5082#ifdef CONFIG_ISA
5083 if (shp->dma_channel != 0xff)
5084 free_dma(shp->dma_channel);
5085#endif
5086#ifdef INT_COAL
5087 if (ha->coal_stat)
5088 pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
5089 MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys);
5090#endif
5091 if (ha->pscratch)
5092 pci_free_consistent(ha->pdev, GDTH_SCRATCH,
5093 ha->pscratch, ha->scratch_phys);
5094 if (ha->pmsg)
5095 pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
5096 ha->pmsg, ha->msg_phys);
5097 if (ha->ccb_phys)
5098 pci_unmap_single(ha->pdev,ha->ccb_phys,
5099 sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL);
5100
5101 scsi_host_put(shp);
5102}
5103
b31ddd31
BH		 5104static int gdth_halt(struct notifier_block *nb, ulong event, void *buf)
5105{
5106 gdth_ha_str *ha;
5107
5108 TRACE2(("gdth_halt() event %d\n", (int)event));
5109 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
5110 return NOTIFY_DONE;
5111
5112 list_for_each_entry(ha, &gdth_instances, list)
5113 gdth_flush(ha);
5114
5115 return NOTIFY_OK;
5116}
5117
5118static struct notifier_block gdth_notifier = {
5119 gdth_halt, NULL, 0
5120};
5121
835cc24a
CH		 5122static int __init gdth_init(void)
5123{
5124 if (disable) {
5125 printk("GDT-HA: Controller driver disabled from"
5126 " command line !\n");
5127 return 0;
5128 }
5129
5130 printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n",
5131 GDTH_VERSION_STR);
5132
5133 /* initializations */
5134 gdth_polling = TRUE;
5135 gdth_clear_events();
2d6f0d0c 5136 init_timer(&gdth_timer);
835cc24a
CH		 5137
5138 /* As default we do not probe for EISA or ISA controllers */
5139 if (probe_eisa_isa) {
5140 /* scanning for controllers, at first: ISA controller */
5141#ifdef CONFIG_ISA
5142 ulong32 isa_bios;
5143 for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
884f7fba 5144 isa_bios += 0x8000UL)
835cc24a 5145 gdth_isa_probe_one(isa_bios);
835cc24a
CH		 5146#endif
5147#ifdef CONFIG_EISA
5148 {
5149 ushort eisa_slot;
5150 for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
884f7fba 5151 eisa_slot += 0x1000)
835cc24a 5152 gdth_eisa_probe_one(eisa_slot);
835cc24a
CH		 5153 }
5154#endif
5155 }
5156
5157#ifdef CONFIG_PCI
5158 /* scanning for PCI controllers */
a85591fd
JB		 5159 if (pci_register_driver(&gdth_pci_driver)) {
5160 gdth_ha_str *ha;
5161
5162 list_for_each_entry(ha, &gdth_instances, list)
5163 gdth_remove_one(ha);
5164 return -ENODEV;
5165 }
835cc24a
CH		 5166#endif /* CONFIG_PCI */
5167
5168 TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
c596cc46 5169
835cc24a 5170 major = register_chrdev(0,"gdth", &gdth_fops);
835cc24a
CH		 5171 register_reboot_notifier(&gdth_notifier);
5172 gdth_polling = FALSE;
5173 return 0;
5174}
5175
5176static void __exit gdth_exit(void)
5177{
5178 gdth_ha_str *ha;
5179
b31ddd31
BH		 5180 unregister_chrdev(major, "gdth");
5181 unregister_reboot_notifier(&gdth_notifier);
835cc24a
CH		 5182
5183#ifdef GDTH_STATISTICS
b31ddd31 5184 del_timer_sync(&gdth_timer);
835cc24a 5185#endif
b31ddd31 5186
cff26806 5187#ifdef CONFIG_PCI
a85591fd 5188 pci_unregister_driver(&gdth_pci_driver);
cff26806
JG		 5189#endif
5190
b31ddd31
BH		 5191 list_for_each_entry(ha, &gdth_instances, list)
5192 gdth_remove_one(ha);
835cc24a
CH		 5193}
5194
5195module_init(gdth_init);
5196module_exit(gdth_exit);
5197
1da177e4
LT		 5198#ifndef MODULE
5199__setup("gdth=", option_setup);
5200#endif
Ubuntu Artful kernel mirror